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PDF.js

PDF.js is for editing PDFs with JS

Dieses Skript sollte nicht direkt installiert werden. Es handelt sich hier um eine Bibliothek für andere Skripte, welche über folgenden Befehl in den Metadaten eines Skriptes eingebunden wird // @require https://update.greasyfork.org/scripts/388114/721820/PDFjs.js

/**
 * @licstart The following is the entire license notice for the
 * Javascript code in this page
 *
 * Copyright 2019 Mozilla Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 * @licend The above is the entire license notice for the
 * Javascript code in this page
 */

(function webpackUniversalModuleDefinition(root, factory) {
	if(typeof exports === 'object' && typeof module === 'object')
		module.exports = factory();
	else if(typeof define === 'function' && define.amd)
		define("pdfjs-dist/build/pdf", [], factory);
	else if(typeof exports === 'object')
		exports["pdfjs-dist/build/pdf"] = factory();
	else
		root["pdfjs-dist/build/pdf"] = root.pdfjsLib = factory();
})(this, function() {
return /******/ (function(modules) { // webpackBootstrap
/******/ 	// The module cache
/******/ 	var installedModules = {};
/******/
/******/ 	// The require function
/******/ 	function __w_pdfjs_require__(moduleId) {
/******/
/******/ 		// Check if module is in cache
/******/ 		if(installedModules[moduleId]) {
/******/ 			return installedModules[moduleId].exports;
/******/ 		}
/******/ 		// Create a new module (and put it into the cache)
/******/ 		var module = installedModules[moduleId] = {
/******/ 			i: moduleId,
/******/ 			l: false,
/******/ 			exports: {}
/******/ 		};
/******/
/******/ 		// Execute the module function
/******/ 		modules[moduleId].call(module.exports, module, module.exports, __w_pdfjs_require__);
/******/
/******/ 		// Flag the module as loaded
/******/ 		module.l = true;
/******/
/******/ 		// Return the exports of the module
/******/ 		return module.exports;
/******/ 	}
/******/
/******/
/******/ 	// expose the modules object (__webpack_modules__)
/******/ 	__w_pdfjs_require__.m = modules;
/******/
/******/ 	// expose the module cache
/******/ 	__w_pdfjs_require__.c = installedModules;
/******/
/******/ 	// define getter function for harmony exports
/******/ 	__w_pdfjs_require__.d = function(exports, name, getter) {
/******/ 		if(!__w_pdfjs_require__.o(exports, name)) {
/******/ 			Object.defineProperty(exports, name, { enumerable: true, get: getter });
/******/ 		}
/******/ 	};
/******/
/******/ 	// define __esModule on exports
/******/ 	__w_pdfjs_require__.r = function(exports) {
/******/ 		if(typeof Symbol !== 'undefined' && Symbol.toStringTag) {
/******/ 			Object.defineProperty(exports, Symbol.toStringTag, { value: 'Module' });
/******/ 		}
/******/ 		Object.defineProperty(exports, '__esModule', { value: true });
/******/ 	};
/******/
/******/ 	// create a fake namespace object
/******/ 	// mode & 1: value is a module id, require it
/******/ 	// mode & 2: merge all properties of value into the ns
/******/ 	// mode & 4: return value when already ns object
/******/ 	// mode & 8|1: behave like require
/******/ 	__w_pdfjs_require__.t = function(value, mode) {
/******/ 		if(mode & 1) value = __w_pdfjs_require__(value);
/******/ 		if(mode & 8) return value;
/******/ 		if((mode & 4) && typeof value === 'object' && value && value.__esModule) return value;
/******/ 		var ns = Object.create(null);
/******/ 		__w_pdfjs_require__.r(ns);
/******/ 		Object.defineProperty(ns, 'default', { enumerable: true, value: value });
/******/ 		if(mode & 2 && typeof value != 'string') for(var key in value) __w_pdfjs_require__.d(ns, key, function(key) { return value[key]; }.bind(null, key));
/******/ 		return ns;
/******/ 	};
/******/
/******/ 	// getDefaultExport function for compatibility with non-harmony modules
/******/ 	__w_pdfjs_require__.n = function(module) {
/******/ 		var getter = module && module.__esModule ?
/******/ 			function getDefault() { return module['default']; } :
/******/ 			function getModuleExports() { return module; };
/******/ 		__w_pdfjs_require__.d(getter, 'a', getter);
/******/ 		return getter;
/******/ 	};
/******/
/******/ 	// Object.prototype.hasOwnProperty.call
/******/ 	__w_pdfjs_require__.o = function(object, property) { return Object.prototype.hasOwnProperty.call(object, property); };
/******/
/******/ 	// __webpack_public_path__
/******/ 	__w_pdfjs_require__.p = "";
/******/
/******/
/******/ 	// Load entry module and return exports
/******/ 	return __w_pdfjs_require__(__w_pdfjs_require__.s = 0);
/******/ })
/************************************************************************/
/******/ ([
/* 0 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var pdfjsVersion = '2.3.65';
var pdfjsBuild = '6c05a765';

var pdfjsSharedUtil = __w_pdfjs_require__(1);

var pdfjsDisplayAPI = __w_pdfjs_require__(147);

var pdfjsDisplayTextLayer = __w_pdfjs_require__(162);

var pdfjsDisplayAnnotationLayer = __w_pdfjs_require__(163);

var pdfjsDisplayDisplayUtils = __w_pdfjs_require__(151);

var pdfjsDisplaySVG = __w_pdfjs_require__(164);

var pdfjsDisplayWorkerOptions = __w_pdfjs_require__(156);

var pdfjsDisplayAPICompatibility = __w_pdfjs_require__(153);

{
  var isNodeJS = __w_pdfjs_require__(4);

  if (isNodeJS()) {
    var PDFNodeStream = __w_pdfjs_require__(165).PDFNodeStream;

    pdfjsDisplayAPI.setPDFNetworkStreamFactory(function (params) {
      return new PDFNodeStream(params);
    });
  } else {
    var PDFNetworkStream = __w_pdfjs_require__(168).PDFNetworkStream;

    var PDFFetchStream;

    if (pdfjsDisplayDisplayUtils.isFetchSupported()) {
      PDFFetchStream = __w_pdfjs_require__(169).PDFFetchStream;
    }

    pdfjsDisplayAPI.setPDFNetworkStreamFactory(function (params) {
      if (PDFFetchStream && pdfjsDisplayDisplayUtils.isValidFetchUrl(params.url)) {
        return new PDFFetchStream(params);
      }

      return new PDFNetworkStream(params);
    });
  }
}
exports.build = pdfjsDisplayAPI.build;
exports.version = pdfjsDisplayAPI.version;
exports.getDocument = pdfjsDisplayAPI.getDocument;
exports.LoopbackPort = pdfjsDisplayAPI.LoopbackPort;
exports.PDFDataRangeTransport = pdfjsDisplayAPI.PDFDataRangeTransport;
exports.PDFWorker = pdfjsDisplayAPI.PDFWorker;
exports.renderTextLayer = pdfjsDisplayTextLayer.renderTextLayer;
exports.AnnotationLayer = pdfjsDisplayAnnotationLayer.AnnotationLayer;
exports.createPromiseCapability = pdfjsSharedUtil.createPromiseCapability;
exports.PasswordResponses = pdfjsSharedUtil.PasswordResponses;
exports.InvalidPDFException = pdfjsSharedUtil.InvalidPDFException;
exports.MissingPDFException = pdfjsSharedUtil.MissingPDFException;
exports.SVGGraphics = pdfjsDisplaySVG.SVGGraphics;
exports.NativeImageDecoding = pdfjsSharedUtil.NativeImageDecoding;
exports.CMapCompressionType = pdfjsSharedUtil.CMapCompressionType;
exports.PermissionFlag = pdfjsSharedUtil.PermissionFlag;
exports.UnexpectedResponseException = pdfjsSharedUtil.UnexpectedResponseException;
exports.OPS = pdfjsSharedUtil.OPS;
exports.VerbosityLevel = pdfjsSharedUtil.VerbosityLevel;
exports.UNSUPPORTED_FEATURES = pdfjsSharedUtil.UNSUPPORTED_FEATURES;
exports.createValidAbsoluteUrl = pdfjsSharedUtil.createValidAbsoluteUrl;
exports.createObjectURL = pdfjsSharedUtil.createObjectURL;
exports.removeNullCharacters = pdfjsSharedUtil.removeNullCharacters;
exports.shadow = pdfjsSharedUtil.shadow;
exports.Util = pdfjsSharedUtil.Util;
exports.ReadableStream = pdfjsSharedUtil.ReadableStream;
exports.URL = pdfjsSharedUtil.URL;
exports.RenderingCancelledException = pdfjsDisplayDisplayUtils.RenderingCancelledException;
exports.getFilenameFromUrl = pdfjsDisplayDisplayUtils.getFilenameFromUrl;
exports.LinkTarget = pdfjsDisplayDisplayUtils.LinkTarget;
exports.addLinkAttributes = pdfjsDisplayDisplayUtils.addLinkAttributes;
exports.loadScript = pdfjsDisplayDisplayUtils.loadScript;
exports.PDFDateString = pdfjsDisplayDisplayUtils.PDFDateString;
exports.GlobalWorkerOptions = pdfjsDisplayWorkerOptions.GlobalWorkerOptions;
exports.apiCompatibilityParams = pdfjsDisplayAPICompatibility.apiCompatibilityParams;

/***/ }),
/* 1 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.arrayByteLength = arrayByteLength;
exports.arraysToBytes = arraysToBytes;
exports.assert = assert;
exports.bytesToString = bytesToString;
exports.createPromiseCapability = createPromiseCapability;
exports.getVerbosityLevel = getVerbosityLevel;
exports.info = info;
exports.isArrayBuffer = isArrayBuffer;
exports.isArrayEqual = isArrayEqual;
exports.isBool = isBool;
exports.isEmptyObj = isEmptyObj;
exports.isNum = isNum;
exports.isString = isString;
exports.isSpace = isSpace;
exports.isSameOrigin = isSameOrigin;
exports.createValidAbsoluteUrl = createValidAbsoluteUrl;
exports.isLittleEndian = isLittleEndian;
exports.isEvalSupported = isEvalSupported;
exports.log2 = log2;
exports.readInt8 = readInt8;
exports.readUint16 = readUint16;
exports.readUint32 = readUint32;
exports.removeNullCharacters = removeNullCharacters;
exports.setVerbosityLevel = setVerbosityLevel;
exports.shadow = shadow;
exports.string32 = string32;
exports.stringToBytes = stringToBytes;
exports.stringToPDFString = stringToPDFString;
exports.stringToUTF8String = stringToUTF8String;
exports.utf8StringToString = utf8StringToString;
exports.warn = warn;
exports.unreachable = unreachable;
Object.defineProperty(exports, "ReadableStream", {
  enumerable: true,
  get: function get() {
    return _streams_polyfill.ReadableStream;
  }
});
Object.defineProperty(exports, "URL", {
  enumerable: true,
  get: function get() {
    return _url_polyfill.URL;
  }
});
exports.createObjectURL = exports.FormatError = exports.Util = exports.UnknownErrorException = exports.UnexpectedResponseException = exports.TextRenderingMode = exports.StreamType = exports.PermissionFlag = exports.PasswordResponses = exports.PasswordException = exports.NativeImageDecoding = exports.MissingPDFException = exports.InvalidPDFException = exports.AbortException = exports.CMapCompressionType = exports.ImageKind = exports.FontType = exports.AnnotationType = exports.AnnotationStateModelType = exports.AnnotationReviewState = exports.AnnotationReplyType = exports.AnnotationMarkedState = exports.AnnotationFlag = exports.AnnotationFieldFlag = exports.AnnotationBorderStyleType = exports.UNSUPPORTED_FEATURES = exports.VerbosityLevel = exports.OPS = exports.IDENTITY_MATRIX = exports.FONT_IDENTITY_MATRIX = void 0;

__w_pdfjs_require__(2);

var _streams_polyfill = __w_pdfjs_require__(143);

var _url_polyfill = __w_pdfjs_require__(145);

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

var IDENTITY_MATRIX = [1, 0, 0, 1, 0, 0];
exports.IDENTITY_MATRIX = IDENTITY_MATRIX;
var FONT_IDENTITY_MATRIX = [0.001, 0, 0, 0.001, 0, 0];
exports.FONT_IDENTITY_MATRIX = FONT_IDENTITY_MATRIX;
var NativeImageDecoding = {
  NONE: 'none',
  DECODE: 'decode',
  DISPLAY: 'display'
};
exports.NativeImageDecoding = NativeImageDecoding;
var PermissionFlag = {
  PRINT: 0x04,
  MODIFY_CONTENTS: 0x08,
  COPY: 0x10,
  MODIFY_ANNOTATIONS: 0x20,
  FILL_INTERACTIVE_FORMS: 0x100,
  COPY_FOR_ACCESSIBILITY: 0x200,
  ASSEMBLE: 0x400,
  PRINT_HIGH_QUALITY: 0x800
};
exports.PermissionFlag = PermissionFlag;
var TextRenderingMode = {
  FILL: 0,
  STROKE: 1,
  FILL_STROKE: 2,
  INVISIBLE: 3,
  FILL_ADD_TO_PATH: 4,
  STROKE_ADD_TO_PATH: 5,
  FILL_STROKE_ADD_TO_PATH: 6,
  ADD_TO_PATH: 7,
  FILL_STROKE_MASK: 3,
  ADD_TO_PATH_FLAG: 4
};
exports.TextRenderingMode = TextRenderingMode;
var ImageKind = {
  GRAYSCALE_1BPP: 1,
  RGB_24BPP: 2,
  RGBA_32BPP: 3
};
exports.ImageKind = ImageKind;
var AnnotationType = {
  TEXT: 1,
  LINK: 2,
  FREETEXT: 3,
  LINE: 4,
  SQUARE: 5,
  CIRCLE: 6,
  POLYGON: 7,
  POLYLINE: 8,
  HIGHLIGHT: 9,
  UNDERLINE: 10,
  SQUIGGLY: 11,
  STRIKEOUT: 12,
  STAMP: 13,
  CARET: 14,
  INK: 15,
  POPUP: 16,
  FILEATTACHMENT: 17,
  SOUND: 18,
  MOVIE: 19,
  WIDGET: 20,
  SCREEN: 21,
  PRINTERMARK: 22,
  TRAPNET: 23,
  WATERMARK: 24,
  THREED: 25,
  REDACT: 26
};
exports.AnnotationType = AnnotationType;
var AnnotationStateModelType = {
  MARKED: 'Marked',
  REVIEW: 'Review'
};
exports.AnnotationStateModelType = AnnotationStateModelType;
var AnnotationMarkedState = {
  MARKED: 'Marked',
  UNMARKED: 'Unmarked'
};
exports.AnnotationMarkedState = AnnotationMarkedState;
var AnnotationReviewState = {
  ACCEPTED: 'Accepted',
  REJECTED: 'Rejected',
  CANCELLED: 'Cancelled',
  COMPLETED: 'Completed',
  NONE: 'None'
};
exports.AnnotationReviewState = AnnotationReviewState;
var AnnotationReplyType = {
  GROUP: 'Group',
  REPLY: 'R'
};
exports.AnnotationReplyType = AnnotationReplyType;
var AnnotationFlag = {
  INVISIBLE: 0x01,
  HIDDEN: 0x02,
  PRINT: 0x04,
  NOZOOM: 0x08,
  NOROTATE: 0x10,
  NOVIEW: 0x20,
  READONLY: 0x40,
  LOCKED: 0x80,
  TOGGLENOVIEW: 0x100,
  LOCKEDCONTENTS: 0x200
};
exports.AnnotationFlag = AnnotationFlag;
var AnnotationFieldFlag = {
  READONLY: 0x0000001,
  REQUIRED: 0x0000002,
  NOEXPORT: 0x0000004,
  MULTILINE: 0x0001000,
  PASSWORD: 0x0002000,
  NOTOGGLETOOFF: 0x0004000,
  RADIO: 0x0008000,
  PUSHBUTTON: 0x0010000,
  COMBO: 0x0020000,
  EDIT: 0x0040000,
  SORT: 0x0080000,
  FILESELECT: 0x0100000,
  MULTISELECT: 0x0200000,
  DONOTSPELLCHECK: 0x0400000,
  DONOTSCROLL: 0x0800000,
  COMB: 0x1000000,
  RICHTEXT: 0x2000000,
  RADIOSINUNISON: 0x2000000,
  COMMITONSELCHANGE: 0x4000000
};
exports.AnnotationFieldFlag = AnnotationFieldFlag;
var AnnotationBorderStyleType = {
  SOLID: 1,
  DASHED: 2,
  BEVELED: 3,
  INSET: 4,
  UNDERLINE: 5
};
exports.AnnotationBorderStyleType = AnnotationBorderStyleType;
var StreamType = {
  UNKNOWN: 'UNKNOWN',
  FLATE: 'FLATE',
  LZW: 'LZW',
  DCT: 'DCT',
  JPX: 'JPX',
  JBIG: 'JBIG',
  A85: 'A85',
  AHX: 'AHX',
  CCF: 'CCF',
  RLX: 'RLX'
};
exports.StreamType = StreamType;
var FontType = {
  UNKNOWN: 'UNKNOWN',
  TYPE1: 'TYPE1',
  TYPE1C: 'TYPE1C',
  CIDFONTTYPE0: 'CIDFONTTYPE0',
  CIDFONTTYPE0C: 'CIDFONTTYPE0C',
  TRUETYPE: 'TRUETYPE',
  CIDFONTTYPE2: 'CIDFONTTYPE2',
  TYPE3: 'TYPE3',
  OPENTYPE: 'OPENTYPE',
  TYPE0: 'TYPE0',
  MMTYPE1: 'MMTYPE1'
};
exports.FontType = FontType;
var VerbosityLevel = {
  ERRORS: 0,
  WARNINGS: 1,
  INFOS: 5
};
exports.VerbosityLevel = VerbosityLevel;
var CMapCompressionType = {
  NONE: 0,
  BINARY: 1,
  STREAM: 2
};
exports.CMapCompressionType = CMapCompressionType;
var OPS = {
  dependency: 1,
  setLineWidth: 2,
  setLineCap: 3,
  setLineJoin: 4,
  setMiterLimit: 5,
  setDash: 6,
  setRenderingIntent: 7,
  setFlatness: 8,
  setGState: 9,
  save: 10,
  restore: 11,
  transform: 12,
  moveTo: 13,
  lineTo: 14,
  curveTo: 15,
  curveTo2: 16,
  curveTo3: 17,
  closePath: 18,
  rectangle: 19,
  stroke: 20,
  closeStroke: 21,
  fill: 22,
  eoFill: 23,
  fillStroke: 24,
  eoFillStroke: 25,
  closeFillStroke: 26,
  closeEOFillStroke: 27,
  endPath: 28,
  clip: 29,
  eoClip: 30,
  beginText: 31,
  endText: 32,
  setCharSpacing: 33,
  setWordSpacing: 34,
  setHScale: 35,
  setLeading: 36,
  setFont: 37,
  setTextRenderingMode: 38,
  setTextRise: 39,
  moveText: 40,
  setLeadingMoveText: 41,
  setTextMatrix: 42,
  nextLine: 43,
  showText: 44,
  showSpacedText: 45,
  nextLineShowText: 46,
  nextLineSetSpacingShowText: 47,
  setCharWidth: 48,
  setCharWidthAndBounds: 49,
  setStrokeColorSpace: 50,
  setFillColorSpace: 51,
  setStrokeColor: 52,
  setStrokeColorN: 53,
  setFillColor: 54,
  setFillColorN: 55,
  setStrokeGray: 56,
  setFillGray: 57,
  setStrokeRGBColor: 58,
  setFillRGBColor: 59,
  setStrokeCMYKColor: 60,
  setFillCMYKColor: 61,
  shadingFill: 62,
  beginInlineImage: 63,
  beginImageData: 64,
  endInlineImage: 65,
  paintXObject: 66,
  markPoint: 67,
  markPointProps: 68,
  beginMarkedContent: 69,
  beginMarkedContentProps: 70,
  endMarkedContent: 71,
  beginCompat: 72,
  endCompat: 73,
  paintFormXObjectBegin: 74,
  paintFormXObjectEnd: 75,
  beginGroup: 76,
  endGroup: 77,
  beginAnnotations: 78,
  endAnnotations: 79,
  beginAnnotation: 80,
  endAnnotation: 81,
  paintJpegXObject: 82,
  paintImageMaskXObject: 83,
  paintImageMaskXObjectGroup: 84,
  paintImageXObject: 85,
  paintInlineImageXObject: 86,
  paintInlineImageXObjectGroup: 87,
  paintImageXObjectRepeat: 88,
  paintImageMaskXObjectRepeat: 89,
  paintSolidColorImageMask: 90,
  constructPath: 91
};
exports.OPS = OPS;
var UNSUPPORTED_FEATURES = {
  unknown: 'unknown',
  forms: 'forms',
  javaScript: 'javaScript',
  smask: 'smask',
  shadingPattern: 'shadingPattern',
  font: 'font'
};
exports.UNSUPPORTED_FEATURES = UNSUPPORTED_FEATURES;
var PasswordResponses = {
  NEED_PASSWORD: 1,
  INCORRECT_PASSWORD: 2
};
exports.PasswordResponses = PasswordResponses;
var verbosity = VerbosityLevel.WARNINGS;

function setVerbosityLevel(level) {
  if (Number.isInteger(level)) {
    verbosity = level;
  }
}

function getVerbosityLevel() {
  return verbosity;
}

function info(msg) {
  if (verbosity >= VerbosityLevel.INFOS) {
    console.log('Info: ' + msg);
  }
}

function warn(msg) {
  if (verbosity >= VerbosityLevel.WARNINGS) {
    console.log('Warning: ' + msg);
  }
}

function unreachable(msg) {
  throw new Error(msg);
}

function assert(cond, msg) {
  if (!cond) {
    unreachable(msg);
  }
}

function isSameOrigin(baseUrl, otherUrl) {
  try {
    var base = new _url_polyfill.URL(baseUrl);

    if (!base.origin || base.origin === 'null') {
      return false;
    }
  } catch (e) {
    return false;
  }

  var other = new _url_polyfill.URL(otherUrl, base);
  return base.origin === other.origin;
}

function _isValidProtocol(url) {
  if (!url) {
    return false;
  }

  switch (url.protocol) {
    case 'http:':
    case 'https:':
    case 'ftp:':
    case 'mailto:':
    case 'tel:':
      return true;

    default:
      return false;
  }
}

function createValidAbsoluteUrl(url, baseUrl) {
  if (!url) {
    return null;
  }

  try {
    var absoluteUrl = baseUrl ? new _url_polyfill.URL(url, baseUrl) : new _url_polyfill.URL(url);

    if (_isValidProtocol(absoluteUrl)) {
      return absoluteUrl;
    }
  } catch (ex) {}

  return null;
}

function shadow(obj, prop, value) {
  Object.defineProperty(obj, prop, {
    value: value,
    enumerable: true,
    configurable: true,
    writable: false
  });
  return value;
}

var PasswordException = function PasswordExceptionClosure() {
  function PasswordException(msg, code) {
    this.name = 'PasswordException';
    this.message = msg;
    this.code = code;
  }

  PasswordException.prototype = new Error();
  PasswordException.constructor = PasswordException;
  return PasswordException;
}();

exports.PasswordException = PasswordException;

var UnknownErrorException = function UnknownErrorExceptionClosure() {
  function UnknownErrorException(msg, details) {
    this.name = 'UnknownErrorException';
    this.message = msg;
    this.details = details;
  }

  UnknownErrorException.prototype = new Error();
  UnknownErrorException.constructor = UnknownErrorException;
  return UnknownErrorException;
}();

exports.UnknownErrorException = UnknownErrorException;

var InvalidPDFException = function InvalidPDFExceptionClosure() {
  function InvalidPDFException(msg) {
    this.name = 'InvalidPDFException';
    this.message = msg;
  }

  InvalidPDFException.prototype = new Error();
  InvalidPDFException.constructor = InvalidPDFException;
  return InvalidPDFException;
}();

exports.InvalidPDFException = InvalidPDFException;

var MissingPDFException = function MissingPDFExceptionClosure() {
  function MissingPDFException(msg) {
    this.name = 'MissingPDFException';
    this.message = msg;
  }

  MissingPDFException.prototype = new Error();
  MissingPDFException.constructor = MissingPDFException;
  return MissingPDFException;
}();

exports.MissingPDFException = MissingPDFException;

var UnexpectedResponseException = function UnexpectedResponseExceptionClosure() {
  function UnexpectedResponseException(msg, status) {
    this.name = 'UnexpectedResponseException';
    this.message = msg;
    this.status = status;
  }

  UnexpectedResponseException.prototype = new Error();
  UnexpectedResponseException.constructor = UnexpectedResponseException;
  return UnexpectedResponseException;
}();

exports.UnexpectedResponseException = UnexpectedResponseException;

var FormatError = function FormatErrorClosure() {
  function FormatError(msg) {
    this.message = msg;
  }

  FormatError.prototype = new Error();
  FormatError.prototype.name = 'FormatError';
  FormatError.constructor = FormatError;
  return FormatError;
}();

exports.FormatError = FormatError;

var AbortException = function AbortExceptionClosure() {
  function AbortException(msg) {
    this.name = 'AbortException';
    this.message = msg;
  }

  AbortException.prototype = new Error();
  AbortException.constructor = AbortException;
  return AbortException;
}();

exports.AbortException = AbortException;
var NullCharactersRegExp = /\x00/g;

function removeNullCharacters(str) {
  if (typeof str !== 'string') {
    warn('The argument for removeNullCharacters must be a string.');
    return str;
  }

  return str.replace(NullCharactersRegExp, '');
}

function bytesToString(bytes) {
  assert(bytes !== null && _typeof(bytes) === 'object' && bytes.length !== undefined, 'Invalid argument for bytesToString');
  var length = bytes.length;
  var MAX_ARGUMENT_COUNT = 8192;

  if (length < MAX_ARGUMENT_COUNT) {
    return String.fromCharCode.apply(null, bytes);
  }

  var strBuf = [];

  for (var i = 0; i < length; i += MAX_ARGUMENT_COUNT) {
    var chunkEnd = Math.min(i + MAX_ARGUMENT_COUNT, length);
    var chunk = bytes.subarray(i, chunkEnd);
    strBuf.push(String.fromCharCode.apply(null, chunk));
  }

  return strBuf.join('');
}

function stringToBytes(str) {
  assert(typeof str === 'string', 'Invalid argument for stringToBytes');
  var length = str.length;
  var bytes = new Uint8Array(length);

  for (var i = 0; i < length; ++i) {
    bytes[i] = str.charCodeAt(i) & 0xFF;
  }

  return bytes;
}

function arrayByteLength(arr) {
  if (arr.length !== undefined) {
    return arr.length;
  }

  assert(arr.byteLength !== undefined);
  return arr.byteLength;
}

function arraysToBytes(arr) {
  if (arr.length === 1 && arr[0] instanceof Uint8Array) {
    return arr[0];
  }

  var resultLength = 0;
  var i,
      ii = arr.length;
  var item, itemLength;

  for (i = 0; i < ii; i++) {
    item = arr[i];
    itemLength = arrayByteLength(item);
    resultLength += itemLength;
  }

  var pos = 0;
  var data = new Uint8Array(resultLength);

  for (i = 0; i < ii; i++) {
    item = arr[i];

    if (!(item instanceof Uint8Array)) {
      if (typeof item === 'string') {
        item = stringToBytes(item);
      } else {
        item = new Uint8Array(item);
      }
    }

    itemLength = item.byteLength;
    data.set(item, pos);
    pos += itemLength;
  }

  return data;
}

function string32(value) {
  return String.fromCharCode(value >> 24 & 0xff, value >> 16 & 0xff, value >> 8 & 0xff, value & 0xff);
}

function log2(x) {
  if (x <= 0) {
    return 0;
  }

  return Math.ceil(Math.log2(x));
}

function readInt8(data, start) {
  return data[start] << 24 >> 24;
}

function readUint16(data, offset) {
  return data[offset] << 8 | data[offset + 1];
}

function readUint32(data, offset) {
  return (data[offset] << 24 | data[offset + 1] << 16 | data[offset + 2] << 8 | data[offset + 3]) >>> 0;
}

function isLittleEndian() {
  var buffer8 = new Uint8Array(4);
  buffer8[0] = 1;
  var view32 = new Uint32Array(buffer8.buffer, 0, 1);
  return view32[0] === 1;
}

function isEvalSupported() {
  try {
    new Function('');
    return true;
  } catch (e) {
    return false;
  }
}

var Util = function UtilClosure() {
  function Util() {}

  var rgbBuf = ['rgb(', 0, ',', 0, ',', 0, ')'];

  Util.makeCssRgb = function Util_makeCssRgb(r, g, b) {
    rgbBuf[1] = r;
    rgbBuf[3] = g;
    rgbBuf[5] = b;
    return rgbBuf.join('');
  };

  Util.transform = function Util_transform(m1, m2) {
    return [m1[0] * m2[0] + m1[2] * m2[1], m1[1] * m2[0] + m1[3] * m2[1], m1[0] * m2[2] + m1[2] * m2[3], m1[1] * m2[2] + m1[3] * m2[3], m1[0] * m2[4] + m1[2] * m2[5] + m1[4], m1[1] * m2[4] + m1[3] * m2[5] + m1[5]];
  };

  Util.applyTransform = function Util_applyTransform(p, m) {
    var xt = p[0] * m[0] + p[1] * m[2] + m[4];
    var yt = p[0] * m[1] + p[1] * m[3] + m[5];
    return [xt, yt];
  };

  Util.applyInverseTransform = function Util_applyInverseTransform(p, m) {
    var d = m[0] * m[3] - m[1] * m[2];
    var xt = (p[0] * m[3] - p[1] * m[2] + m[2] * m[5] - m[4] * m[3]) / d;
    var yt = (-p[0] * m[1] + p[1] * m[0] + m[4] * m[1] - m[5] * m[0]) / d;
    return [xt, yt];
  };

  Util.getAxialAlignedBoundingBox = function Util_getAxialAlignedBoundingBox(r, m) {
    var p1 = Util.applyTransform(r, m);
    var p2 = Util.applyTransform(r.slice(2, 4), m);
    var p3 = Util.applyTransform([r[0], r[3]], m);
    var p4 = Util.applyTransform([r[2], r[1]], m);
    return [Math.min(p1[0], p2[0], p3[0], p4[0]), Math.min(p1[1], p2[1], p3[1], p4[1]), Math.max(p1[0], p2[0], p3[0], p4[0]), Math.max(p1[1], p2[1], p3[1], p4[1])];
  };

  Util.inverseTransform = function Util_inverseTransform(m) {
    var d = m[0] * m[3] - m[1] * m[2];
    return [m[3] / d, -m[1] / d, -m[2] / d, m[0] / d, (m[2] * m[5] - m[4] * m[3]) / d, (m[4] * m[1] - m[5] * m[0]) / d];
  };

  Util.apply3dTransform = function Util_apply3dTransform(m, v) {
    return [m[0] * v[0] + m[1] * v[1] + m[2] * v[2], m[3] * v[0] + m[4] * v[1] + m[5] * v[2], m[6] * v[0] + m[7] * v[1] + m[8] * v[2]];
  };

  Util.singularValueDecompose2dScale = function Util_singularValueDecompose2dScale(m) {
    var transpose = [m[0], m[2], m[1], m[3]];
    var a = m[0] * transpose[0] + m[1] * transpose[2];
    var b = m[0] * transpose[1] + m[1] * transpose[3];
    var c = m[2] * transpose[0] + m[3] * transpose[2];
    var d = m[2] * transpose[1] + m[3] * transpose[3];
    var first = (a + d) / 2;
    var second = Math.sqrt((a + d) * (a + d) - 4 * (a * d - c * b)) / 2;
    var sx = first + second || 1;
    var sy = first - second || 1;
    return [Math.sqrt(sx), Math.sqrt(sy)];
  };

  Util.normalizeRect = function Util_normalizeRect(rect) {
    var r = rect.slice(0);

    if (rect[0] > rect[2]) {
      r[0] = rect[2];
      r[2] = rect[0];
    }

    if (rect[1] > rect[3]) {
      r[1] = rect[3];
      r[3] = rect[1];
    }

    return r;
  };

  Util.intersect = function Util_intersect(rect1, rect2) {
    function compare(a, b) {
      return a - b;
    }

    var orderedX = [rect1[0], rect1[2], rect2[0], rect2[2]].sort(compare),
        orderedY = [rect1[1], rect1[3], rect2[1], rect2[3]].sort(compare),
        result = [];
    rect1 = Util.normalizeRect(rect1);
    rect2 = Util.normalizeRect(rect2);

    if (orderedX[0] === rect1[0] && orderedX[1] === rect2[0] || orderedX[0] === rect2[0] && orderedX[1] === rect1[0]) {
      result[0] = orderedX[1];
      result[2] = orderedX[2];
    } else {
      return false;
    }

    if (orderedY[0] === rect1[1] && orderedY[1] === rect2[1] || orderedY[0] === rect2[1] && orderedY[1] === rect1[1]) {
      result[1] = orderedY[1];
      result[3] = orderedY[2];
    } else {
      return false;
    }

    return result;
  };

  return Util;
}();

exports.Util = Util;
var PDFStringTranslateTable = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2D8, 0x2C7, 0x2C6, 0x2D9, 0x2DD, 0x2DB, 0x2DA, 0x2DC, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2022, 0x2020, 0x2021, 0x2026, 0x2014, 0x2013, 0x192, 0x2044, 0x2039, 0x203A, 0x2212, 0x2030, 0x201E, 0x201C, 0x201D, 0x2018, 0x2019, 0x201A, 0x2122, 0xFB01, 0xFB02, 0x141, 0x152, 0x160, 0x178, 0x17D, 0x131, 0x142, 0x153, 0x161, 0x17E, 0, 0x20AC];

function stringToPDFString(str) {
  var i,
      n = str.length,
      strBuf = [];

  if (str[0] === '\xFE' && str[1] === '\xFF') {
    for (i = 2; i < n; i += 2) {
      strBuf.push(String.fromCharCode(str.charCodeAt(i) << 8 | str.charCodeAt(i + 1)));
    }
  } else {
    for (i = 0; i < n; ++i) {
      var code = PDFStringTranslateTable[str.charCodeAt(i)];
      strBuf.push(code ? String.fromCharCode(code) : str.charAt(i));
    }
  }

  return strBuf.join('');
}

function stringToUTF8String(str) {
  return decodeURIComponent(escape(str));
}

function utf8StringToString(str) {
  return unescape(encodeURIComponent(str));
}

function isEmptyObj(obj) {
  for (var key in obj) {
    return false;
  }

  return true;
}

function isBool(v) {
  return typeof v === 'boolean';
}

function isNum(v) {
  return typeof v === 'number';
}

function isString(v) {
  return typeof v === 'string';
}

function isArrayBuffer(v) {
  return _typeof(v) === 'object' && v !== null && v.byteLength !== undefined;
}

function isArrayEqual(arr1, arr2) {
  if (arr1.length !== arr2.length) {
    return false;
  }

  return arr1.every(function (element, index) {
    return element === arr2[index];
  });
}

function isSpace(ch) {
  return ch === 0x20 || ch === 0x09 || ch === 0x0D || ch === 0x0A;
}

function createPromiseCapability() {
  var capability = Object.create(null);
  var isSettled = false;
  Object.defineProperty(capability, 'settled', {
    get: function get() {
      return isSettled;
    }
  });
  capability.promise = new Promise(function (resolve, reject) {
    capability.resolve = function (data) {
      isSettled = true;
      resolve(data);
    };

    capability.reject = function (reason) {
      isSettled = true;
      reject(reason);
    };
  });
  return capability;
}

var createObjectURL = function createObjectURLClosure() {
  var digits = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';
  return function createObjectURL(data, contentType) {
    var forceDataSchema = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

    if (!forceDataSchema && _url_polyfill.URL.createObjectURL) {
      var blob = new Blob([data], {
        type: contentType
      });
      return _url_polyfill.URL.createObjectURL(blob);
    }

    var buffer = 'data:' + contentType + ';base64,';

    for (var i = 0, ii = data.length; i < ii; i += 3) {
      var b1 = data[i] & 0xFF;
      var b2 = data[i + 1] & 0xFF;
      var b3 = data[i + 2] & 0xFF;
      var d1 = b1 >> 2,
          d2 = (b1 & 3) << 4 | b2 >> 4;
      var d3 = i + 1 < ii ? (b2 & 0xF) << 2 | b3 >> 6 : 64;
      var d4 = i + 2 < ii ? b3 & 0x3F : 64;
      buffer += digits[d1] + digits[d2] + digits[d3] + digits[d4];
    }

    return buffer;
  };
}();

exports.createObjectURL = createObjectURL;

/***/ }),
/* 2 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

var globalScope = __w_pdfjs_require__(3);

if (!globalScope._pdfjsCompatibilityChecked) {
  globalScope._pdfjsCompatibilityChecked = true;

  var isNodeJS = __w_pdfjs_require__(4);

  var hasDOM = (typeof window === "undefined" ? "undefined" : _typeof(window)) === 'object' && (typeof document === "undefined" ? "undefined" : _typeof(document)) === 'object';

  (function checkNodeBtoa() {
    if (globalScope.btoa || !isNodeJS()) {
      return;
    }

    globalScope.btoa = function (chars) {
      return Buffer.from(chars, 'binary').toString('base64');
    };
  })();

  (function checkNodeAtob() {
    if (globalScope.atob || !isNodeJS()) {
      return;
    }

    globalScope.atob = function (input) {
      return Buffer.from(input, 'base64').toString('binary');
    };
  })();

  (function checkChildNodeRemove() {
    if (!hasDOM) {
      return;
    }

    if (typeof Element.prototype.remove !== 'undefined') {
      return;
    }

    Element.prototype.remove = function () {
      if (this.parentNode) {
        this.parentNode.removeChild(this);
      }
    };
  })();

  (function checkDOMTokenListAddRemove() {
    if (!hasDOM || isNodeJS()) {
      return;
    }

    var div = document.createElement('div');
    div.classList.add('testOne', 'testTwo');

    if (div.classList.contains('testOne') === true && div.classList.contains('testTwo') === true) {
      return;
    }

    var OriginalDOMTokenListAdd = DOMTokenList.prototype.add;
    var OriginalDOMTokenListRemove = DOMTokenList.prototype.remove;

    DOMTokenList.prototype.add = function () {
      for (var _len = arguments.length, tokens = new Array(_len), _key = 0; _key < _len; _key++) {
        tokens[_key] = arguments[_key];
      }

      for (var _i = 0, _tokens = tokens; _i < _tokens.length; _i++) {
        var token = _tokens[_i];
        OriginalDOMTokenListAdd.call(this, token);
      }
    };

    DOMTokenList.prototype.remove = function () {
      for (var _len2 = arguments.length, tokens = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
        tokens[_key2] = arguments[_key2];
      }

      for (var _i2 = 0, _tokens2 = tokens; _i2 < _tokens2.length; _i2++) {
        var token = _tokens2[_i2];
        OriginalDOMTokenListRemove.call(this, token);
      }
    };
  })();

  (function checkDOMTokenListToggle() {
    if (!hasDOM || isNodeJS()) {
      return;
    }

    var div = document.createElement('div');

    if (div.classList.toggle('test', 0) === false) {
      return;
    }

    DOMTokenList.prototype.toggle = function (token) {
      var force = arguments.length > 1 ? !!arguments[1] : !this.contains(token);
      return this[force ? 'add' : 'remove'](token), force;
    };
  })();

  (function checkStringStartsWith() {
    if (String.prototype.startsWith) {
      return;
    }

    __w_pdfjs_require__(5);
  })();

  (function checkStringEndsWith() {
    if (String.prototype.endsWith) {
      return;
    }

    __w_pdfjs_require__(36);
  })();

  (function checkStringIncludes() {
    if (String.prototype.includes) {
      return;
    }

    __w_pdfjs_require__(38);
  })();

  (function checkArrayIncludes() {
    if (Array.prototype.includes) {
      return;
    }

    __w_pdfjs_require__(40);
  })();

  (function checkArrayFrom() {
    if (Array.from) {
      return;
    }

    __w_pdfjs_require__(47);
  })();

  (function checkObjectAssign() {
    if (Object.assign) {
      return;
    }

    __w_pdfjs_require__(70);
  })();

  (function checkMathLog2() {
    if (Math.log2) {
      return;
    }

    Math.log2 = __w_pdfjs_require__(75);
  })();

  (function checkNumberIsNaN() {
    if (Number.isNaN) {
      return;
    }

    Number.isNaN = __w_pdfjs_require__(77);
  })();

  (function checkNumberIsInteger() {
    if (Number.isInteger) {
      return;
    }

    Number.isInteger = __w_pdfjs_require__(79);
  })();

  (function checkPromise() {
    if (globalScope.Promise && globalScope.Promise.prototype && globalScope.Promise.prototype["finally"]) {
      return;
    }

    globalScope.Promise = __w_pdfjs_require__(82);
  })();

  (function checkWeakMap() {
    if (globalScope.WeakMap) {
      return;
    }

    globalScope.WeakMap = __w_pdfjs_require__(102);
  })();

  (function checkWeakSet() {
    if (globalScope.WeakSet) {
      return;
    }

    globalScope.WeakSet = __w_pdfjs_require__(119);
  })();

  (function checkStringCodePointAt() {
    if (String.codePointAt) {
      return;
    }

    String.codePointAt = __w_pdfjs_require__(123);
  })();

  (function checkStringFromCodePoint() {
    if (String.fromCodePoint) {
      return;
    }

    String.fromCodePoint = __w_pdfjs_require__(125);
  })();

  (function checkSymbol() {
    if (globalScope.Symbol) {
      return;
    }

    __w_pdfjs_require__(127);
  })();

  (function checkStringPadStart() {
    if (String.prototype.padStart) {
      return;
    }

    __w_pdfjs_require__(134);
  })();

  (function checkStringPadEnd() {
    if (String.prototype.padEnd) {
      return;
    }

    __w_pdfjs_require__(138);
  })();

  (function checkObjectValues() {
    if (Object.values) {
      return;
    }

    Object.values = __w_pdfjs_require__(140);
  })();
}

/***/ }),
/* 3 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = typeof window !== 'undefined' && window.Math === Math ? window : typeof global !== 'undefined' && global.Math === Math ? global : typeof self !== 'undefined' && self.Math === Math ? self : {};

/***/ }),
/* 4 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

module.exports = function isNodeJS() {
  return (typeof process === "undefined" ? "undefined" : _typeof(process)) === 'object' && process + '' === '[object process]' && !process.versions['nw'] && !process.versions['electron'];
};

/***/ }),
/* 5 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(6);

module.exports = __w_pdfjs_require__(9).String.startsWith;

/***/ }),
/* 6 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var toLength = __w_pdfjs_require__(28);

var context = __w_pdfjs_require__(30);

var STARTS_WITH = 'startsWith';
var $startsWith = ''[STARTS_WITH];
$export($export.P + $export.F * __w_pdfjs_require__(35)(STARTS_WITH), 'String', {
  startsWith: function startsWith(searchString) {
    var that = context(this, searchString, STARTS_WITH);
    var index = toLength(Math.min(arguments.length > 1 ? arguments[1] : undefined, that.length));
    var search = String(searchString);
    return $startsWith ? $startsWith.call(that, search, index) : that.slice(index, index + search.length) === search;
  }
});

/***/ }),
/* 7 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var global = __w_pdfjs_require__(8);

var core = __w_pdfjs_require__(9);

var hide = __w_pdfjs_require__(10);

var redefine = __w_pdfjs_require__(20);

var ctx = __w_pdfjs_require__(26);

var PROTOTYPE = 'prototype';

var $export = function $export(type, name, source) {
  var IS_FORCED = type & $export.F;
  var IS_GLOBAL = type & $export.G;
  var IS_STATIC = type & $export.S;
  var IS_PROTO = type & $export.P;
  var IS_BIND = type & $export.B;
  var target = IS_GLOBAL ? global : IS_STATIC ? global[name] || (global[name] = {}) : (global[name] || {})[PROTOTYPE];
  var exports = IS_GLOBAL ? core : core[name] || (core[name] = {});
  var expProto = exports[PROTOTYPE] || (exports[PROTOTYPE] = {});
  var key, own, out, exp;
  if (IS_GLOBAL) source = name;

  for (key in source) {
    own = !IS_FORCED && target && target[key] !== undefined;
    out = (own ? target : source)[key];
    exp = IS_BIND && own ? ctx(out, global) : IS_PROTO && typeof out == 'function' ? ctx(Function.call, out) : out;
    if (target) redefine(target, key, out, type & $export.U);
    if (exports[key] != out) hide(exports, key, exp);
    if (IS_PROTO && expProto[key] != out) expProto[key] = out;
  }
};

global.core = core;
$export.F = 1;
$export.G = 2;
$export.S = 4;
$export.P = 8;
$export.B = 16;
$export.W = 32;
$export.U = 64;
$export.R = 128;
module.exports = $export;

/***/ }),
/* 8 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var global = module.exports = typeof window != 'undefined' && window.Math == Math ? window : typeof self != 'undefined' && self.Math == Math ? self : Function('return this')();
if (typeof __g == 'number') __g = global;

/***/ }),
/* 9 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var core = module.exports = {
  version: '2.6.9'
};
if (typeof __e == 'number') __e = core;

/***/ }),
/* 10 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var dP = __w_pdfjs_require__(11);

var createDesc = __w_pdfjs_require__(19);

module.exports = __w_pdfjs_require__(15) ? function (object, key, value) {
  return dP.f(object, key, createDesc(1, value));
} : function (object, key, value) {
  object[key] = value;
  return object;
};

/***/ }),
/* 11 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var anObject = __w_pdfjs_require__(12);

var IE8_DOM_DEFINE = __w_pdfjs_require__(14);

var toPrimitive = __w_pdfjs_require__(18);

var dP = Object.defineProperty;
exports.f = __w_pdfjs_require__(15) ? Object.defineProperty : function defineProperty(O, P, Attributes) {
  anObject(O);
  P = toPrimitive(P, true);
  anObject(Attributes);
  if (IE8_DOM_DEFINE) try {
    return dP(O, P, Attributes);
  } catch (e) {}
  if ('get' in Attributes || 'set' in Attributes) throw TypeError('Accessors not supported!');
  if ('value' in Attributes) O[P] = Attributes.value;
  return O;
};

/***/ }),
/* 12 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var isObject = __w_pdfjs_require__(13);

module.exports = function (it) {
  if (!isObject(it)) throw TypeError(it + ' is not an object!');
  return it;
};

/***/ }),
/* 13 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

module.exports = function (it) {
  return _typeof(it) === 'object' ? it !== null : typeof it === 'function';
};

/***/ }),
/* 14 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = !__w_pdfjs_require__(15) && !__w_pdfjs_require__(16)(function () {
  return Object.defineProperty(__w_pdfjs_require__(17)('div'), 'a', {
    get: function get() {
      return 7;
    }
  }).a != 7;
});

/***/ }),
/* 15 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = !__w_pdfjs_require__(16)(function () {
  return Object.defineProperty({}, 'a', {
    get: function get() {
      return 7;
    }
  }).a != 7;
});

/***/ }),
/* 16 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = function (exec) {
  try {
    return !!exec();
  } catch (e) {
    return true;
  }
};

/***/ }),
/* 17 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var isObject = __w_pdfjs_require__(13);

var document = __w_pdfjs_require__(8).document;

var is = isObject(document) && isObject(document.createElement);

module.exports = function (it) {
  return is ? document.createElement(it) : {};
};

/***/ }),
/* 18 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var isObject = __w_pdfjs_require__(13);

module.exports = function (it, S) {
  if (!isObject(it)) return it;
  var fn, val;
  if (S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
  if (typeof (fn = it.valueOf) == 'function' && !isObject(val = fn.call(it))) return val;
  if (!S && typeof (fn = it.toString) == 'function' && !isObject(val = fn.call(it))) return val;
  throw TypeError("Can't convert object to primitive value");
};

/***/ }),
/* 19 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = function (bitmap, value) {
  return {
    enumerable: !(bitmap & 1),
    configurable: !(bitmap & 2),
    writable: !(bitmap & 4),
    value: value
  };
};

/***/ }),
/* 20 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var global = __w_pdfjs_require__(8);

var hide = __w_pdfjs_require__(10);

var has = __w_pdfjs_require__(21);

var SRC = __w_pdfjs_require__(22)('src');

var $toString = __w_pdfjs_require__(23);

var TO_STRING = 'toString';
var TPL = ('' + $toString).split(TO_STRING);

__w_pdfjs_require__(9).inspectSource = function (it) {
  return $toString.call(it);
};

(module.exports = function (O, key, val, safe) {
  var isFunction = typeof val == 'function';
  if (isFunction) has(val, 'name') || hide(val, 'name', key);
  if (O[key] === val) return;
  if (isFunction) has(val, SRC) || hide(val, SRC, O[key] ? '' + O[key] : TPL.join(String(key)));

  if (O === global) {
    O[key] = val;
  } else if (!safe) {
    delete O[key];
    hide(O, key, val);
  } else if (O[key]) {
    O[key] = val;
  } else {
    hide(O, key, val);
  }
})(Function.prototype, TO_STRING, function toString() {
  return typeof this == 'function' && this[SRC] || $toString.call(this);
});

/***/ }),
/* 21 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var hasOwnProperty = {}.hasOwnProperty;

module.exports = function (it, key) {
  return hasOwnProperty.call(it, key);
};

/***/ }),
/* 22 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var id = 0;
var px = Math.random();

module.exports = function (key) {
  return 'Symbol('.concat(key === undefined ? '' : key, ')_', (++id + px).toString(36));
};

/***/ }),
/* 23 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = __w_pdfjs_require__(24)('native-function-to-string', Function.toString);

/***/ }),
/* 24 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var core = __w_pdfjs_require__(9);

var global = __w_pdfjs_require__(8);

var SHARED = '__core-js_shared__';
var store = global[SHARED] || (global[SHARED] = {});
(module.exports = function (key, value) {
  return store[key] || (store[key] = value !== undefined ? value : {});
})('versions', []).push({
  version: core.version,
  mode: __w_pdfjs_require__(25) ? 'pure' : 'global',
  copyright: '© 2019 Denis Pushkarev (zloirock.ru)'
});

/***/ }),
/* 25 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = false;

/***/ }),
/* 26 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var aFunction = __w_pdfjs_require__(27);

module.exports = function (fn, that, length) {
  aFunction(fn);
  if (that === undefined) return fn;

  switch (length) {
    case 1:
      return function (a) {
        return fn.call(that, a);
      };

    case 2:
      return function (a, b) {
        return fn.call(that, a, b);
      };

    case 3:
      return function (a, b, c) {
        return fn.call(that, a, b, c);
      };
  }

  return function () {
    return fn.apply(that, arguments);
  };
};

/***/ }),
/* 27 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = function (it) {
  if (typeof it != 'function') throw TypeError(it + ' is not a function!');
  return it;
};

/***/ }),
/* 28 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var toInteger = __w_pdfjs_require__(29);

var min = Math.min;

module.exports = function (it) {
  return it > 0 ? min(toInteger(it), 0x1fffffffffffff) : 0;
};

/***/ }),
/* 29 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var ceil = Math.ceil;
var floor = Math.floor;

module.exports = function (it) {
  return isNaN(it = +it) ? 0 : (it > 0 ? floor : ceil)(it);
};

/***/ }),
/* 30 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var isRegExp = __w_pdfjs_require__(31);

var defined = __w_pdfjs_require__(34);

module.exports = function (that, searchString, NAME) {
  if (isRegExp(searchString)) throw TypeError('String#' + NAME + " doesn't accept regex!");
  return String(defined(that));
};

/***/ }),
/* 31 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var isObject = __w_pdfjs_require__(13);

var cof = __w_pdfjs_require__(32);

var MATCH = __w_pdfjs_require__(33)('match');

module.exports = function (it) {
  var isRegExp;
  return isObject(it) && ((isRegExp = it[MATCH]) !== undefined ? !!isRegExp : cof(it) == 'RegExp');
};

/***/ }),
/* 32 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var toString = {}.toString;

module.exports = function (it) {
  return toString.call(it).slice(8, -1);
};

/***/ }),
/* 33 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var store = __w_pdfjs_require__(24)('wks');

var uid = __w_pdfjs_require__(22);

var _Symbol = __w_pdfjs_require__(8).Symbol;

var USE_SYMBOL = typeof _Symbol == 'function';

var $exports = module.exports = function (name) {
  return store[name] || (store[name] = USE_SYMBOL && _Symbol[name] || (USE_SYMBOL ? _Symbol : uid)('Symbol.' + name));
};

$exports.store = store;

/***/ }),
/* 34 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = function (it) {
  if (it == undefined) throw TypeError("Can't call method on  " + it);
  return it;
};

/***/ }),
/* 35 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var MATCH = __w_pdfjs_require__(33)('match');

module.exports = function (KEY) {
  var re = /./;

  try {
    '/./'[KEY](re);
  } catch (e) {
    try {
      re[MATCH] = false;
      return !'/./'[KEY](re);
    } catch (f) {}
  }

  return true;
};

/***/ }),
/* 36 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(37);

module.exports = __w_pdfjs_require__(9).String.endsWith;

/***/ }),
/* 37 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var toLength = __w_pdfjs_require__(28);

var context = __w_pdfjs_require__(30);

var ENDS_WITH = 'endsWith';
var $endsWith = ''[ENDS_WITH];
$export($export.P + $export.F * __w_pdfjs_require__(35)(ENDS_WITH), 'String', {
  endsWith: function endsWith(searchString) {
    var that = context(this, searchString, ENDS_WITH);
    var endPosition = arguments.length > 1 ? arguments[1] : undefined;
    var len = toLength(that.length);
    var end = endPosition === undefined ? len : Math.min(toLength(endPosition), len);
    var search = String(searchString);
    return $endsWith ? $endsWith.call(that, search, end) : that.slice(end - search.length, end) === search;
  }
});

/***/ }),
/* 38 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(39);

module.exports = __w_pdfjs_require__(9).String.includes;

/***/ }),
/* 39 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var context = __w_pdfjs_require__(30);

var INCLUDES = 'includes';
$export($export.P + $export.F * __w_pdfjs_require__(35)(INCLUDES), 'String', {
  includes: function includes(searchString) {
    return !!~context(this, searchString, INCLUDES).indexOf(searchString, arguments.length > 1 ? arguments[1] : undefined);
  }
});

/***/ }),
/* 40 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(41);

module.exports = __w_pdfjs_require__(9).Array.includes;

/***/ }),
/* 41 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var $includes = __w_pdfjs_require__(42)(true);

$export($export.P, 'Array', {
  includes: function includes(el) {
    return $includes(this, el, arguments.length > 1 ? arguments[1] : undefined);
  }
});

__w_pdfjs_require__(46)('includes');

/***/ }),
/* 42 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var toIObject = __w_pdfjs_require__(43);

var toLength = __w_pdfjs_require__(28);

var toAbsoluteIndex = __w_pdfjs_require__(45);

module.exports = function (IS_INCLUDES) {
  return function ($this, el, fromIndex) {
    var O = toIObject($this);
    var length = toLength(O.length);
    var index = toAbsoluteIndex(fromIndex, length);
    var value;
    if (IS_INCLUDES && el != el) while (length > index) {
      value = O[index++];
      if (value != value) return true;
    } else for (; length > index; index++) {
      if (IS_INCLUDES || index in O) {
        if (O[index] === el) return IS_INCLUDES || index || 0;
      }
    }
    return !IS_INCLUDES && -1;
  };
};

/***/ }),
/* 43 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var IObject = __w_pdfjs_require__(44);

var defined = __w_pdfjs_require__(34);

module.exports = function (it) {
  return IObject(defined(it));
};

/***/ }),
/* 44 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var cof = __w_pdfjs_require__(32);

module.exports = Object('z').propertyIsEnumerable(0) ? Object : function (it) {
  return cof(it) == 'String' ? it.split('') : Object(it);
};

/***/ }),
/* 45 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var toInteger = __w_pdfjs_require__(29);

var max = Math.max;
var min = Math.min;

module.exports = function (index, length) {
  index = toInteger(index);
  return index < 0 ? max(index + length, 0) : min(index, length);
};

/***/ }),
/* 46 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var UNSCOPABLES = __w_pdfjs_require__(33)('unscopables');

var ArrayProto = Array.prototype;
if (ArrayProto[UNSCOPABLES] == undefined) __w_pdfjs_require__(10)(ArrayProto, UNSCOPABLES, {});

module.exports = function (key) {
  ArrayProto[UNSCOPABLES][key] = true;
};

/***/ }),
/* 47 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(48);

__w_pdfjs_require__(63);

module.exports = __w_pdfjs_require__(9).Array.from;

/***/ }),
/* 48 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $at = __w_pdfjs_require__(49)(true);

__w_pdfjs_require__(50)(String, 'String', function (iterated) {
  this._t = String(iterated);
  this._i = 0;
}, function () {
  var O = this._t;
  var index = this._i;
  var point;
  if (index >= O.length) return {
    value: undefined,
    done: true
  };
  point = $at(O, index);
  this._i += point.length;
  return {
    value: point,
    done: false
  };
});

/***/ }),
/* 49 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var toInteger = __w_pdfjs_require__(29);

var defined = __w_pdfjs_require__(34);

module.exports = function (TO_STRING) {
  return function (that, pos) {
    var s = String(defined(that));
    var i = toInteger(pos);
    var l = s.length;
    var a, b;
    if (i < 0 || i >= l) return TO_STRING ? '' : undefined;
    a = s.charCodeAt(i);
    return a < 0xd800 || a > 0xdbff || i + 1 === l || (b = s.charCodeAt(i + 1)) < 0xdc00 || b > 0xdfff ? TO_STRING ? s.charAt(i) : a : TO_STRING ? s.slice(i, i + 2) : (a - 0xd800 << 10) + (b - 0xdc00) + 0x10000;
  };
};

/***/ }),
/* 50 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var LIBRARY = __w_pdfjs_require__(25);

var $export = __w_pdfjs_require__(7);

var redefine = __w_pdfjs_require__(20);

var hide = __w_pdfjs_require__(10);

var Iterators = __w_pdfjs_require__(51);

var $iterCreate = __w_pdfjs_require__(52);

var setToStringTag = __w_pdfjs_require__(60);

var getPrototypeOf = __w_pdfjs_require__(61);

var ITERATOR = __w_pdfjs_require__(33)('iterator');

var BUGGY = !([].keys && 'next' in [].keys());
var FF_ITERATOR = '@@iterator';
var KEYS = 'keys';
var VALUES = 'values';

var returnThis = function returnThis() {
  return this;
};

module.exports = function (Base, NAME, Constructor, next, DEFAULT, IS_SET, FORCED) {
  $iterCreate(Constructor, NAME, next);

  var getMethod = function getMethod(kind) {
    if (!BUGGY && kind in proto) return proto[kind];

    switch (kind) {
      case KEYS:
        return function keys() {
          return new Constructor(this, kind);
        };

      case VALUES:
        return function values() {
          return new Constructor(this, kind);
        };
    }

    return function entries() {
      return new Constructor(this, kind);
    };
  };

  var TAG = NAME + ' Iterator';
  var DEF_VALUES = DEFAULT == VALUES;
  var VALUES_BUG = false;
  var proto = Base.prototype;
  var $native = proto[ITERATOR] || proto[FF_ITERATOR] || DEFAULT && proto[DEFAULT];
  var $default = $native || getMethod(DEFAULT);
  var $entries = DEFAULT ? !DEF_VALUES ? $default : getMethod('entries') : undefined;
  var $anyNative = NAME == 'Array' ? proto.entries || $native : $native;
  var methods, key, IteratorPrototype;

  if ($anyNative) {
    IteratorPrototype = getPrototypeOf($anyNative.call(new Base()));

    if (IteratorPrototype !== Object.prototype && IteratorPrototype.next) {
      setToStringTag(IteratorPrototype, TAG, true);
      if (!LIBRARY && typeof IteratorPrototype[ITERATOR] != 'function') hide(IteratorPrototype, ITERATOR, returnThis);
    }
  }

  if (DEF_VALUES && $native && $native.name !== VALUES) {
    VALUES_BUG = true;

    $default = function values() {
      return $native.call(this);
    };
  }

  if ((!LIBRARY || FORCED) && (BUGGY || VALUES_BUG || !proto[ITERATOR])) {
    hide(proto, ITERATOR, $default);
  }

  Iterators[NAME] = $default;
  Iterators[TAG] = returnThis;

  if (DEFAULT) {
    methods = {
      values: DEF_VALUES ? $default : getMethod(VALUES),
      keys: IS_SET ? $default : getMethod(KEYS),
      entries: $entries
    };
    if (FORCED) for (key in methods) {
      if (!(key in proto)) redefine(proto, key, methods[key]);
    } else $export($export.P + $export.F * (BUGGY || VALUES_BUG), NAME, methods);
  }

  return methods;
};

/***/ }),
/* 51 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = {};

/***/ }),
/* 52 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var create = __w_pdfjs_require__(53);

var descriptor = __w_pdfjs_require__(19);

var setToStringTag = __w_pdfjs_require__(60);

var IteratorPrototype = {};

__w_pdfjs_require__(10)(IteratorPrototype, __w_pdfjs_require__(33)('iterator'), function () {
  return this;
});

module.exports = function (Constructor, NAME, next) {
  Constructor.prototype = create(IteratorPrototype, {
    next: descriptor(1, next)
  });
  setToStringTag(Constructor, NAME + ' Iterator');
};

/***/ }),
/* 53 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var anObject = __w_pdfjs_require__(12);

var dPs = __w_pdfjs_require__(54);

var enumBugKeys = __w_pdfjs_require__(58);

var IE_PROTO = __w_pdfjs_require__(57)('IE_PROTO');

var Empty = function Empty() {};

var PROTOTYPE = 'prototype';

var _createDict = function createDict() {
  var iframe = __w_pdfjs_require__(17)('iframe');

  var i = enumBugKeys.length;
  var lt = '<';
  var gt = '>';
  var iframeDocument;
  iframe.style.display = 'none';

  __w_pdfjs_require__(59).appendChild(iframe);

  iframe.src = 'javascript:';
  iframeDocument = iframe.contentWindow.document;
  iframeDocument.open();
  iframeDocument.write(lt + 'script' + gt + 'document.F=Object' + lt + '/script' + gt);
  iframeDocument.close();
  _createDict = iframeDocument.F;

  while (i--) {
    delete _createDict[PROTOTYPE][enumBugKeys[i]];
  }

  return _createDict();
};

module.exports = Object.create || function create(O, Properties) {
  var result;

  if (O !== null) {
    Empty[PROTOTYPE] = anObject(O);
    result = new Empty();
    Empty[PROTOTYPE] = null;
    result[IE_PROTO] = O;
  } else result = _createDict();

  return Properties === undefined ? result : dPs(result, Properties);
};

/***/ }),
/* 54 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var dP = __w_pdfjs_require__(11);

var anObject = __w_pdfjs_require__(12);

var getKeys = __w_pdfjs_require__(55);

module.exports = __w_pdfjs_require__(15) ? Object.defineProperties : function defineProperties(O, Properties) {
  anObject(O);
  var keys = getKeys(Properties);
  var length = keys.length;
  var i = 0;
  var P;

  while (length > i) {
    dP.f(O, P = keys[i++], Properties[P]);
  }

  return O;
};

/***/ }),
/* 55 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $keys = __w_pdfjs_require__(56);

var enumBugKeys = __w_pdfjs_require__(58);

module.exports = Object.keys || function keys(O) {
  return $keys(O, enumBugKeys);
};

/***/ }),
/* 56 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var has = __w_pdfjs_require__(21);

var toIObject = __w_pdfjs_require__(43);

var arrayIndexOf = __w_pdfjs_require__(42)(false);

var IE_PROTO = __w_pdfjs_require__(57)('IE_PROTO');

module.exports = function (object, names) {
  var O = toIObject(object);
  var i = 0;
  var result = [];
  var key;

  for (key in O) {
    if (key != IE_PROTO) has(O, key) && result.push(key);
  }

  while (names.length > i) {
    if (has(O, key = names[i++])) {
      ~arrayIndexOf(result, key) || result.push(key);
    }
  }

  return result;
};

/***/ }),
/* 57 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var shared = __w_pdfjs_require__(24)('keys');

var uid = __w_pdfjs_require__(22);

module.exports = function (key) {
  return shared[key] || (shared[key] = uid(key));
};

/***/ }),
/* 58 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = 'constructor,hasOwnProperty,isPrototypeOf,propertyIsEnumerable,toLocaleString,toString,valueOf'.split(',');

/***/ }),
/* 59 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var document = __w_pdfjs_require__(8).document;

module.exports = document && document.documentElement;

/***/ }),
/* 60 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var def = __w_pdfjs_require__(11).f;

var has = __w_pdfjs_require__(21);

var TAG = __w_pdfjs_require__(33)('toStringTag');

module.exports = function (it, tag, stat) {
  if (it && !has(it = stat ? it : it.prototype, TAG)) def(it, TAG, {
    configurable: true,
    value: tag
  });
};

/***/ }),
/* 61 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var has = __w_pdfjs_require__(21);

var toObject = __w_pdfjs_require__(62);

var IE_PROTO = __w_pdfjs_require__(57)('IE_PROTO');

var ObjectProto = Object.prototype;

module.exports = Object.getPrototypeOf || function (O) {
  O = toObject(O);
  if (has(O, IE_PROTO)) return O[IE_PROTO];

  if (typeof O.constructor == 'function' && O instanceof O.constructor) {
    return O.constructor.prototype;
  }

  return O instanceof Object ? ObjectProto : null;
};

/***/ }),
/* 62 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var defined = __w_pdfjs_require__(34);

module.exports = function (it) {
  return Object(defined(it));
};

/***/ }),
/* 63 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var ctx = __w_pdfjs_require__(26);

var $export = __w_pdfjs_require__(7);

var toObject = __w_pdfjs_require__(62);

var call = __w_pdfjs_require__(64);

var isArrayIter = __w_pdfjs_require__(65);

var toLength = __w_pdfjs_require__(28);

var createProperty = __w_pdfjs_require__(66);

var getIterFn = __w_pdfjs_require__(67);

$export($export.S + $export.F * !__w_pdfjs_require__(69)(function (iter) {
  Array.from(iter);
}), 'Array', {
  from: function from(arrayLike) {
    var O = toObject(arrayLike);
    var C = typeof this == 'function' ? this : Array;
    var aLen = arguments.length;
    var mapfn = aLen > 1 ? arguments[1] : undefined;
    var mapping = mapfn !== undefined;
    var index = 0;
    var iterFn = getIterFn(O);
    var length, result, step, iterator;
    if (mapping) mapfn = ctx(mapfn, aLen > 2 ? arguments[2] : undefined, 2);

    if (iterFn != undefined && !(C == Array && isArrayIter(iterFn))) {
      for (iterator = iterFn.call(O), result = new C(); !(step = iterator.next()).done; index++) {
        createProperty(result, index, mapping ? call(iterator, mapfn, [step.value, index], true) : step.value);
      }
    } else {
      length = toLength(O.length);

      for (result = new C(length); length > index; index++) {
        createProperty(result, index, mapping ? mapfn(O[index], index) : O[index]);
      }
    }

    result.length = index;
    return result;
  }
});

/***/ }),
/* 64 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var anObject = __w_pdfjs_require__(12);

module.exports = function (iterator, fn, value, entries) {
  try {
    return entries ? fn(anObject(value)[0], value[1]) : fn(value);
  } catch (e) {
    var ret = iterator['return'];
    if (ret !== undefined) anObject(ret.call(iterator));
    throw e;
  }
};

/***/ }),
/* 65 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var Iterators = __w_pdfjs_require__(51);

var ITERATOR = __w_pdfjs_require__(33)('iterator');

var ArrayProto = Array.prototype;

module.exports = function (it) {
  return it !== undefined && (Iterators.Array === it || ArrayProto[ITERATOR] === it);
};

/***/ }),
/* 66 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $defineProperty = __w_pdfjs_require__(11);

var createDesc = __w_pdfjs_require__(19);

module.exports = function (object, index, value) {
  if (index in object) $defineProperty.f(object, index, createDesc(0, value));else object[index] = value;
};

/***/ }),
/* 67 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var classof = __w_pdfjs_require__(68);

var ITERATOR = __w_pdfjs_require__(33)('iterator');

var Iterators = __w_pdfjs_require__(51);

module.exports = __w_pdfjs_require__(9).getIteratorMethod = function (it) {
  if (it != undefined) return it[ITERATOR] || it['@@iterator'] || Iterators[classof(it)];
};

/***/ }),
/* 68 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var cof = __w_pdfjs_require__(32);

var TAG = __w_pdfjs_require__(33)('toStringTag');

var ARG = cof(function () {
  return arguments;
}()) == 'Arguments';

var tryGet = function tryGet(it, key) {
  try {
    return it[key];
  } catch (e) {}
};

module.exports = function (it) {
  var O, T, B;
  return it === undefined ? 'Undefined' : it === null ? 'Null' : typeof (T = tryGet(O = Object(it), TAG)) == 'string' ? T : ARG ? cof(O) : (B = cof(O)) == 'Object' && typeof O.callee == 'function' ? 'Arguments' : B;
};

/***/ }),
/* 69 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var ITERATOR = __w_pdfjs_require__(33)('iterator');

var SAFE_CLOSING = false;

try {
  var riter = [7][ITERATOR]();

  riter['return'] = function () {
    SAFE_CLOSING = true;
  };

  Array.from(riter, function () {
    throw 2;
  });
} catch (e) {}

module.exports = function (exec, skipClosing) {
  if (!skipClosing && !SAFE_CLOSING) return false;
  var safe = false;

  try {
    var arr = [7];
    var iter = arr[ITERATOR]();

    iter.next = function () {
      return {
        done: safe = true
      };
    };

    arr[ITERATOR] = function () {
      return iter;
    };

    exec(arr);
  } catch (e) {}

  return safe;
};

/***/ }),
/* 70 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(71);

module.exports = __w_pdfjs_require__(9).Object.assign;

/***/ }),
/* 71 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

$export($export.S + $export.F, 'Object', {
  assign: __w_pdfjs_require__(72)
});

/***/ }),
/* 72 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var DESCRIPTORS = __w_pdfjs_require__(15);

var getKeys = __w_pdfjs_require__(55);

var gOPS = __w_pdfjs_require__(73);

var pIE = __w_pdfjs_require__(74);

var toObject = __w_pdfjs_require__(62);

var IObject = __w_pdfjs_require__(44);

var $assign = Object.assign;
module.exports = !$assign || __w_pdfjs_require__(16)(function () {
  var A = {};
  var B = {};
  var S = Symbol();
  var K = 'abcdefghijklmnopqrst';
  A[S] = 7;
  K.split('').forEach(function (k) {
    B[k] = k;
  });
  return $assign({}, A)[S] != 7 || Object.keys($assign({}, B)).join('') != K;
}) ? function assign(target, source) {
  var T = toObject(target);
  var aLen = arguments.length;
  var index = 1;
  var getSymbols = gOPS.f;
  var isEnum = pIE.f;

  while (aLen > index) {
    var S = IObject(arguments[index++]);
    var keys = getSymbols ? getKeys(S).concat(getSymbols(S)) : getKeys(S);
    var length = keys.length;
    var j = 0;
    var key;

    while (length > j) {
      key = keys[j++];
      if (!DESCRIPTORS || isEnum.call(S, key)) T[key] = S[key];
    }
  }

  return T;
} : $assign;

/***/ }),
/* 73 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


exports.f = Object.getOwnPropertySymbols;

/***/ }),
/* 74 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


exports.f = {}.propertyIsEnumerable;

/***/ }),
/* 75 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(76);

module.exports = __w_pdfjs_require__(9).Math.log2;

/***/ }),
/* 76 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

$export($export.S, 'Math', {
  log2: function log2(x) {
    return Math.log(x) / Math.LN2;
  }
});

/***/ }),
/* 77 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(78);

module.exports = __w_pdfjs_require__(9).Number.isNaN;

/***/ }),
/* 78 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

$export($export.S, 'Number', {
  isNaN: function isNaN(number) {
    return number != number;
  }
});

/***/ }),
/* 79 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(80);

module.exports = __w_pdfjs_require__(9).Number.isInteger;

/***/ }),
/* 80 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

$export($export.S, 'Number', {
  isInteger: __w_pdfjs_require__(81)
});

/***/ }),
/* 81 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var isObject = __w_pdfjs_require__(13);

var floor = Math.floor;

module.exports = function isInteger(it) {
  return !isObject(it) && isFinite(it) && floor(it) === it;
};

/***/ }),
/* 82 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(83);

__w_pdfjs_require__(48);

__w_pdfjs_require__(84);

__w_pdfjs_require__(87);

__w_pdfjs_require__(100);

__w_pdfjs_require__(101);

module.exports = __w_pdfjs_require__(9).Promise;

/***/ }),
/* 83 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var classof = __w_pdfjs_require__(68);

var test = {};
test[__w_pdfjs_require__(33)('toStringTag')] = 'z';

if (test + '' != '[object z]') {
  __w_pdfjs_require__(20)(Object.prototype, 'toString', function toString() {
    return '[object ' + classof(this) + ']';
  }, true);
}

/***/ }),
/* 84 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $iterators = __w_pdfjs_require__(85);

var getKeys = __w_pdfjs_require__(55);

var redefine = __w_pdfjs_require__(20);

var global = __w_pdfjs_require__(8);

var hide = __w_pdfjs_require__(10);

var Iterators = __w_pdfjs_require__(51);

var wks = __w_pdfjs_require__(33);

var ITERATOR = wks('iterator');
var TO_STRING_TAG = wks('toStringTag');
var ArrayValues = Iterators.Array;
var DOMIterables = {
  CSSRuleList: true,
  CSSStyleDeclaration: false,
  CSSValueList: false,
  ClientRectList: false,
  DOMRectList: false,
  DOMStringList: false,
  DOMTokenList: true,
  DataTransferItemList: false,
  FileList: false,
  HTMLAllCollection: false,
  HTMLCollection: false,
  HTMLFormElement: false,
  HTMLSelectElement: false,
  MediaList: true,
  MimeTypeArray: false,
  NamedNodeMap: false,
  NodeList: true,
  PaintRequestList: false,
  Plugin: false,
  PluginArray: false,
  SVGLengthList: false,
  SVGNumberList: false,
  SVGPathSegList: false,
  SVGPointList: false,
  SVGStringList: false,
  SVGTransformList: false,
  SourceBufferList: false,
  StyleSheetList: true,
  TextTrackCueList: false,
  TextTrackList: false,
  TouchList: false
};

for (var collections = getKeys(DOMIterables), i = 0; i < collections.length; i++) {
  var NAME = collections[i];
  var explicit = DOMIterables[NAME];
  var Collection = global[NAME];
  var proto = Collection && Collection.prototype;
  var key;

  if (proto) {
    if (!proto[ITERATOR]) hide(proto, ITERATOR, ArrayValues);
    if (!proto[TO_STRING_TAG]) hide(proto, TO_STRING_TAG, NAME);
    Iterators[NAME] = ArrayValues;
    if (explicit) for (key in $iterators) {
      if (!proto[key]) redefine(proto, key, $iterators[key], true);
    }
  }
}

/***/ }),
/* 85 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var addToUnscopables = __w_pdfjs_require__(46);

var step = __w_pdfjs_require__(86);

var Iterators = __w_pdfjs_require__(51);

var toIObject = __w_pdfjs_require__(43);

module.exports = __w_pdfjs_require__(50)(Array, 'Array', function (iterated, kind) {
  this._t = toIObject(iterated);
  this._i = 0;
  this._k = kind;
}, function () {
  var O = this._t;
  var kind = this._k;
  var index = this._i++;

  if (!O || index >= O.length) {
    this._t = undefined;
    return step(1);
  }

  if (kind == 'keys') return step(0, index);
  if (kind == 'values') return step(0, O[index]);
  return step(0, [index, O[index]]);
}, 'values');
Iterators.Arguments = Iterators.Array;
addToUnscopables('keys');
addToUnscopables('values');
addToUnscopables('entries');

/***/ }),
/* 86 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = function (done, value) {
  return {
    value: value,
    done: !!done
  };
};

/***/ }),
/* 87 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var LIBRARY = __w_pdfjs_require__(25);

var global = __w_pdfjs_require__(8);

var ctx = __w_pdfjs_require__(26);

var classof = __w_pdfjs_require__(68);

var $export = __w_pdfjs_require__(7);

var isObject = __w_pdfjs_require__(13);

var aFunction = __w_pdfjs_require__(27);

var anInstance = __w_pdfjs_require__(88);

var forOf = __w_pdfjs_require__(89);

var speciesConstructor = __w_pdfjs_require__(90);

var task = __w_pdfjs_require__(91).set;

var microtask = __w_pdfjs_require__(93)();

var newPromiseCapabilityModule = __w_pdfjs_require__(94);

var perform = __w_pdfjs_require__(95);

var userAgent = __w_pdfjs_require__(96);

var promiseResolve = __w_pdfjs_require__(97);

var PROMISE = 'Promise';
var TypeError = global.TypeError;
var process = global.process;
var versions = process && process.versions;
var v8 = versions && versions.v8 || '';
var $Promise = global[PROMISE];
var isNode = classof(process) == 'process';

var empty = function empty() {};

var Internal, newGenericPromiseCapability, OwnPromiseCapability, Wrapper;
var newPromiseCapability = newGenericPromiseCapability = newPromiseCapabilityModule.f;
var USE_NATIVE = !!function () {
  try {
    var promise = $Promise.resolve(1);

    var FakePromise = (promise.constructor = {})[__w_pdfjs_require__(33)('species')] = function (exec) {
      exec(empty, empty);
    };

    return (isNode || typeof PromiseRejectionEvent == 'function') && promise.then(empty) instanceof FakePromise && v8.indexOf('6.6') !== 0 && userAgent.indexOf('Chrome/66') === -1;
  } catch (e) {}
}();

var isThenable = function isThenable(it) {
  var then;
  return isObject(it) && typeof (then = it.then) == 'function' ? then : false;
};

var notify = function notify(promise, isReject) {
  if (promise._n) return;
  promise._n = true;
  var chain = promise._c;
  microtask(function () {
    var value = promise._v;
    var ok = promise._s == 1;
    var i = 0;

    var run = function run(reaction) {
      var handler = ok ? reaction.ok : reaction.fail;
      var resolve = reaction.resolve;
      var reject = reaction.reject;
      var domain = reaction.domain;
      var result, then, exited;

      try {
        if (handler) {
          if (!ok) {
            if (promise._h == 2) onHandleUnhandled(promise);
            promise._h = 1;
          }

          if (handler === true) result = value;else {
            if (domain) domain.enter();
            result = handler(value);

            if (domain) {
              domain.exit();
              exited = true;
            }
          }

          if (result === reaction.promise) {
            reject(TypeError('Promise-chain cycle'));
          } else if (then = isThenable(result)) {
            then.call(result, resolve, reject);
          } else resolve(result);
        } else reject(value);
      } catch (e) {
        if (domain && !exited) domain.exit();
        reject(e);
      }
    };

    while (chain.length > i) {
      run(chain[i++]);
    }

    promise._c = [];
    promise._n = false;
    if (isReject && !promise._h) onUnhandled(promise);
  });
};

var onUnhandled = function onUnhandled(promise) {
  task.call(global, function () {
    var value = promise._v;
    var unhandled = isUnhandled(promise);
    var result, handler, console;

    if (unhandled) {
      result = perform(function () {
        if (isNode) {
          process.emit('unhandledRejection', value, promise);
        } else if (handler = global.onunhandledrejection) {
          handler({
            promise: promise,
            reason: value
          });
        } else if ((console = global.console) && console.error) {
          console.error('Unhandled promise rejection', value);
        }
      });
      promise._h = isNode || isUnhandled(promise) ? 2 : 1;
    }

    promise._a = undefined;
    if (unhandled && result.e) throw result.v;
  });
};

var isUnhandled = function isUnhandled(promise) {
  return promise._h !== 1 && (promise._a || promise._c).length === 0;
};

var onHandleUnhandled = function onHandleUnhandled(promise) {
  task.call(global, function () {
    var handler;

    if (isNode) {
      process.emit('rejectionHandled', promise);
    } else if (handler = global.onrejectionhandled) {
      handler({
        promise: promise,
        reason: promise._v
      });
    }
  });
};

var $reject = function $reject(value) {
  var promise = this;
  if (promise._d) return;
  promise._d = true;
  promise = promise._w || promise;
  promise._v = value;
  promise._s = 2;
  if (!promise._a) promise._a = promise._c.slice();
  notify(promise, true);
};

var $resolve = function $resolve(value) {
  var promise = this;
  var then;
  if (promise._d) return;
  promise._d = true;
  promise = promise._w || promise;

  try {
    if (promise === value) throw TypeError("Promise can't be resolved itself");

    if (then = isThenable(value)) {
      microtask(function () {
        var wrapper = {
          _w: promise,
          _d: false
        };

        try {
          then.call(value, ctx($resolve, wrapper, 1), ctx($reject, wrapper, 1));
        } catch (e) {
          $reject.call(wrapper, e);
        }
      });
    } else {
      promise._v = value;
      promise._s = 1;
      notify(promise, false);
    }
  } catch (e) {
    $reject.call({
      _w: promise,
      _d: false
    }, e);
  }
};

if (!USE_NATIVE) {
  $Promise = function Promise(executor) {
    anInstance(this, $Promise, PROMISE, '_h');
    aFunction(executor);
    Internal.call(this);

    try {
      executor(ctx($resolve, this, 1), ctx($reject, this, 1));
    } catch (err) {
      $reject.call(this, err);
    }
  };

  Internal = function Promise(executor) {
    this._c = [];
    this._a = undefined;
    this._s = 0;
    this._d = false;
    this._v = undefined;
    this._h = 0;
    this._n = false;
  };

  Internal.prototype = __w_pdfjs_require__(98)($Promise.prototype, {
    then: function then(onFulfilled, onRejected) {
      var reaction = newPromiseCapability(speciesConstructor(this, $Promise));
      reaction.ok = typeof onFulfilled == 'function' ? onFulfilled : true;
      reaction.fail = typeof onRejected == 'function' && onRejected;
      reaction.domain = isNode ? process.domain : undefined;

      this._c.push(reaction);

      if (this._a) this._a.push(reaction);
      if (this._s) notify(this, false);
      return reaction.promise;
    },
    'catch': function _catch(onRejected) {
      return this.then(undefined, onRejected);
    }
  });

  OwnPromiseCapability = function OwnPromiseCapability() {
    var promise = new Internal();
    this.promise = promise;
    this.resolve = ctx($resolve, promise, 1);
    this.reject = ctx($reject, promise, 1);
  };

  newPromiseCapabilityModule.f = newPromiseCapability = function newPromiseCapability(C) {
    return C === $Promise || C === Wrapper ? new OwnPromiseCapability(C) : newGenericPromiseCapability(C);
  };
}

$export($export.G + $export.W + $export.F * !USE_NATIVE, {
  Promise: $Promise
});

__w_pdfjs_require__(60)($Promise, PROMISE);

__w_pdfjs_require__(99)(PROMISE);

Wrapper = __w_pdfjs_require__(9)[PROMISE];
$export($export.S + $export.F * !USE_NATIVE, PROMISE, {
  reject: function reject(r) {
    var capability = newPromiseCapability(this);
    var $$reject = capability.reject;
    $$reject(r);
    return capability.promise;
  }
});
$export($export.S + $export.F * (LIBRARY || !USE_NATIVE), PROMISE, {
  resolve: function resolve(x) {
    return promiseResolve(LIBRARY && this === Wrapper ? $Promise : this, x);
  }
});
$export($export.S + $export.F * !(USE_NATIVE && __w_pdfjs_require__(69)(function (iter) {
  $Promise.all(iter)['catch'](empty);
})), PROMISE, {
  all: function all(iterable) {
    var C = this;
    var capability = newPromiseCapability(C);
    var resolve = capability.resolve;
    var reject = capability.reject;
    var result = perform(function () {
      var values = [];
      var index = 0;
      var remaining = 1;
      forOf(iterable, false, function (promise) {
        var $index = index++;
        var alreadyCalled = false;
        values.push(undefined);
        remaining++;
        C.resolve(promise).then(function (value) {
          if (alreadyCalled) return;
          alreadyCalled = true;
          values[$index] = value;
          --remaining || resolve(values);
        }, reject);
      });
      --remaining || resolve(values);
    });
    if (result.e) reject(result.v);
    return capability.promise;
  },
  race: function race(iterable) {
    var C = this;
    var capability = newPromiseCapability(C);
    var reject = capability.reject;
    var result = perform(function () {
      forOf(iterable, false, function (promise) {
        C.resolve(promise).then(capability.resolve, reject);
      });
    });
    if (result.e) reject(result.v);
    return capability.promise;
  }
});

/***/ }),
/* 88 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = function (it, Constructor, name, forbiddenField) {
  if (!(it instanceof Constructor) || forbiddenField !== undefined && forbiddenField in it) {
    throw TypeError(name + ': incorrect invocation!');
  }

  return it;
};

/***/ }),
/* 89 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var ctx = __w_pdfjs_require__(26);

var call = __w_pdfjs_require__(64);

var isArrayIter = __w_pdfjs_require__(65);

var anObject = __w_pdfjs_require__(12);

var toLength = __w_pdfjs_require__(28);

var getIterFn = __w_pdfjs_require__(67);

var BREAK = {};
var RETURN = {};

var _exports = module.exports = function (iterable, entries, fn, that, ITERATOR) {
  var iterFn = ITERATOR ? function () {
    return iterable;
  } : getIterFn(iterable);
  var f = ctx(fn, that, entries ? 2 : 1);
  var index = 0;
  var length, step, iterator, result;
  if (typeof iterFn != 'function') throw TypeError(iterable + ' is not iterable!');
  if (isArrayIter(iterFn)) for (length = toLength(iterable.length); length > index; index++) {
    result = entries ? f(anObject(step = iterable[index])[0], step[1]) : f(iterable[index]);
    if (result === BREAK || result === RETURN) return result;
  } else for (iterator = iterFn.call(iterable); !(step = iterator.next()).done;) {
    result = call(iterator, f, step.value, entries);
    if (result === BREAK || result === RETURN) return result;
  }
};

_exports.BREAK = BREAK;
_exports.RETURN = RETURN;

/***/ }),
/* 90 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var anObject = __w_pdfjs_require__(12);

var aFunction = __w_pdfjs_require__(27);

var SPECIES = __w_pdfjs_require__(33)('species');

module.exports = function (O, D) {
  var C = anObject(O).constructor;
  var S;
  return C === undefined || (S = anObject(C)[SPECIES]) == undefined ? D : aFunction(S);
};

/***/ }),
/* 91 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var ctx = __w_pdfjs_require__(26);

var invoke = __w_pdfjs_require__(92);

var html = __w_pdfjs_require__(59);

var cel = __w_pdfjs_require__(17);

var global = __w_pdfjs_require__(8);

var process = global.process;
var setTask = global.setImmediate;
var clearTask = global.clearImmediate;
var MessageChannel = global.MessageChannel;
var Dispatch = global.Dispatch;
var counter = 0;
var queue = {};
var ONREADYSTATECHANGE = 'onreadystatechange';
var defer, channel, port;

var run = function run() {
  var id = +this;

  if (queue.hasOwnProperty(id)) {
    var fn = queue[id];
    delete queue[id];
    fn();
  }
};

var listener = function listener(event) {
  run.call(event.data);
};

if (!setTask || !clearTask) {
  setTask = function setImmediate(fn) {
    var args = [];
    var i = 1;

    while (arguments.length > i) {
      args.push(arguments[i++]);
    }

    queue[++counter] = function () {
      invoke(typeof fn == 'function' ? fn : Function(fn), args);
    };

    defer(counter);
    return counter;
  };

  clearTask = function clearImmediate(id) {
    delete queue[id];
  };

  if (__w_pdfjs_require__(32)(process) == 'process') {
    defer = function defer(id) {
      process.nextTick(ctx(run, id, 1));
    };
  } else if (Dispatch && Dispatch.now) {
    defer = function defer(id) {
      Dispatch.now(ctx(run, id, 1));
    };
  } else if (MessageChannel) {
    channel = new MessageChannel();
    port = channel.port2;
    channel.port1.onmessage = listener;
    defer = ctx(port.postMessage, port, 1);
  } else if (global.addEventListener && typeof postMessage == 'function' && !global.importScripts) {
    defer = function defer(id) {
      global.postMessage(id + '', '*');
    };

    global.addEventListener('message', listener, false);
  } else if (ONREADYSTATECHANGE in cel('script')) {
    defer = function defer(id) {
      html.appendChild(cel('script'))[ONREADYSTATECHANGE] = function () {
        html.removeChild(this);
        run.call(id);
      };
    };
  } else {
    defer = function defer(id) {
      setTimeout(ctx(run, id, 1), 0);
    };
  }
}

module.exports = {
  set: setTask,
  clear: clearTask
};

/***/ }),
/* 92 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = function (fn, args, that) {
  var un = that === undefined;

  switch (args.length) {
    case 0:
      return un ? fn() : fn.call(that);

    case 1:
      return un ? fn(args[0]) : fn.call(that, args[0]);

    case 2:
      return un ? fn(args[0], args[1]) : fn.call(that, args[0], args[1]);

    case 3:
      return un ? fn(args[0], args[1], args[2]) : fn.call(that, args[0], args[1], args[2]);

    case 4:
      return un ? fn(args[0], args[1], args[2], args[3]) : fn.call(that, args[0], args[1], args[2], args[3]);
  }

  return fn.apply(that, args);
};

/***/ }),
/* 93 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var global = __w_pdfjs_require__(8);

var macrotask = __w_pdfjs_require__(91).set;

var Observer = global.MutationObserver || global.WebKitMutationObserver;
var process = global.process;
var Promise = global.Promise;
var isNode = __w_pdfjs_require__(32)(process) == 'process';

module.exports = function () {
  var head, last, notify;

  var flush = function flush() {
    var parent, fn;
    if (isNode && (parent = process.domain)) parent.exit();

    while (head) {
      fn = head.fn;
      head = head.next;

      try {
        fn();
      } catch (e) {
        if (head) notify();else last = undefined;
        throw e;
      }
    }

    last = undefined;
    if (parent) parent.enter();
  };

  if (isNode) {
    notify = function notify() {
      process.nextTick(flush);
    };
  } else if (Observer && !(global.navigator && global.navigator.standalone)) {
    var toggle = true;
    var node = document.createTextNode('');
    new Observer(flush).observe(node, {
      characterData: true
    });

    notify = function notify() {
      node.data = toggle = !toggle;
    };
  } else if (Promise && Promise.resolve) {
    var promise = Promise.resolve(undefined);

    notify = function notify() {
      promise.then(flush);
    };
  } else {
    notify = function notify() {
      macrotask.call(global, flush);
    };
  }

  return function (fn) {
    var task = {
      fn: fn,
      next: undefined
    };
    if (last) last.next = task;

    if (!head) {
      head = task;
      notify();
    }

    last = task;
  };
};

/***/ }),
/* 94 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var aFunction = __w_pdfjs_require__(27);

function PromiseCapability(C) {
  var resolve, reject;
  this.promise = new C(function ($$resolve, $$reject) {
    if (resolve !== undefined || reject !== undefined) throw TypeError('Bad Promise constructor');
    resolve = $$resolve;
    reject = $$reject;
  });
  this.resolve = aFunction(resolve);
  this.reject = aFunction(reject);
}

module.exports.f = function (C) {
  return new PromiseCapability(C);
};

/***/ }),
/* 95 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = function (exec) {
  try {
    return {
      e: false,
      v: exec()
    };
  } catch (e) {
    return {
      e: true,
      v: e
    };
  }
};

/***/ }),
/* 96 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var global = __w_pdfjs_require__(8);

var navigator = global.navigator;
module.exports = navigator && navigator.userAgent || '';

/***/ }),
/* 97 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var anObject = __w_pdfjs_require__(12);

var isObject = __w_pdfjs_require__(13);

var newPromiseCapability = __w_pdfjs_require__(94);

module.exports = function (C, x) {
  anObject(C);
  if (isObject(x) && x.constructor === C) return x;
  var promiseCapability = newPromiseCapability.f(C);
  var resolve = promiseCapability.resolve;
  resolve(x);
  return promiseCapability.promise;
};

/***/ }),
/* 98 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var redefine = __w_pdfjs_require__(20);

module.exports = function (target, src, safe) {
  for (var key in src) {
    redefine(target, key, src[key], safe);
  }

  return target;
};

/***/ }),
/* 99 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var global = __w_pdfjs_require__(8);

var dP = __w_pdfjs_require__(11);

var DESCRIPTORS = __w_pdfjs_require__(15);

var SPECIES = __w_pdfjs_require__(33)('species');

module.exports = function (KEY) {
  var C = global[KEY];
  if (DESCRIPTORS && C && !C[SPECIES]) dP.f(C, SPECIES, {
    configurable: true,
    get: function get() {
      return this;
    }
  });
};

/***/ }),
/* 100 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var core = __w_pdfjs_require__(9);

var global = __w_pdfjs_require__(8);

var speciesConstructor = __w_pdfjs_require__(90);

var promiseResolve = __w_pdfjs_require__(97);

$export($export.P + $export.R, 'Promise', {
  'finally': function _finally(onFinally) {
    var C = speciesConstructor(this, core.Promise || global.Promise);
    var isFunction = typeof onFinally == 'function';
    return this.then(isFunction ? function (x) {
      return promiseResolve(C, onFinally()).then(function () {
        return x;
      });
    } : onFinally, isFunction ? function (e) {
      return promiseResolve(C, onFinally()).then(function () {
        throw e;
      });
    } : onFinally);
  }
});

/***/ }),
/* 101 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var newPromiseCapability = __w_pdfjs_require__(94);

var perform = __w_pdfjs_require__(95);

$export($export.S, 'Promise', {
  'try': function _try(callbackfn) {
    var promiseCapability = newPromiseCapability.f(this);
    var result = perform(callbackfn);
    (result.e ? promiseCapability.reject : promiseCapability.resolve)(result.v);
    return promiseCapability.promise;
  }
});

/***/ }),
/* 102 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(83);

__w_pdfjs_require__(84);

__w_pdfjs_require__(103);

__w_pdfjs_require__(115);

__w_pdfjs_require__(117);

module.exports = __w_pdfjs_require__(9).WeakMap;

/***/ }),
/* 103 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var global = __w_pdfjs_require__(8);

var each = __w_pdfjs_require__(104)(0);

var redefine = __w_pdfjs_require__(20);

var meta = __w_pdfjs_require__(108);

var assign = __w_pdfjs_require__(72);

var weak = __w_pdfjs_require__(109);

var isObject = __w_pdfjs_require__(13);

var validate = __w_pdfjs_require__(110);

var NATIVE_WEAK_MAP = __w_pdfjs_require__(110);

var IS_IE11 = !global.ActiveXObject && 'ActiveXObject' in global;
var WEAK_MAP = 'WeakMap';
var getWeak = meta.getWeak;
var isExtensible = Object.isExtensible;
var uncaughtFrozenStore = weak.ufstore;
var InternalMap;

var wrapper = function wrapper(get) {
  return function WeakMap() {
    return get(this, arguments.length > 0 ? arguments[0] : undefined);
  };
};

var methods = {
  get: function get(key) {
    if (isObject(key)) {
      var data = getWeak(key);
      if (data === true) return uncaughtFrozenStore(validate(this, WEAK_MAP)).get(key);
      return data ? data[this._i] : undefined;
    }
  },
  set: function set(key, value) {
    return weak.def(validate(this, WEAK_MAP), key, value);
  }
};

var $WeakMap = module.exports = __w_pdfjs_require__(111)(WEAK_MAP, wrapper, methods, weak, true, true);

if (NATIVE_WEAK_MAP && IS_IE11) {
  InternalMap = weak.getConstructor(wrapper, WEAK_MAP);
  assign(InternalMap.prototype, methods);
  meta.NEED = true;
  each(['delete', 'has', 'get', 'set'], function (key) {
    var proto = $WeakMap.prototype;
    var method = proto[key];
    redefine(proto, key, function (a, b) {
      if (isObject(a) && !isExtensible(a)) {
        if (!this._f) this._f = new InternalMap();

        var result = this._f[key](a, b);

        return key == 'set' ? this : result;
      }

      return method.call(this, a, b);
    });
  });
}

/***/ }),
/* 104 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var ctx = __w_pdfjs_require__(26);

var IObject = __w_pdfjs_require__(44);

var toObject = __w_pdfjs_require__(62);

var toLength = __w_pdfjs_require__(28);

var asc = __w_pdfjs_require__(105);

module.exports = function (TYPE, $create) {
  var IS_MAP = TYPE == 1;
  var IS_FILTER = TYPE == 2;
  var IS_SOME = TYPE == 3;
  var IS_EVERY = TYPE == 4;
  var IS_FIND_INDEX = TYPE == 6;
  var NO_HOLES = TYPE == 5 || IS_FIND_INDEX;
  var create = $create || asc;
  return function ($this, callbackfn, that) {
    var O = toObject($this);
    var self = IObject(O);
    var f = ctx(callbackfn, that, 3);
    var length = toLength(self.length);
    var index = 0;
    var result = IS_MAP ? create($this, length) : IS_FILTER ? create($this, 0) : undefined;
    var val, res;

    for (; length > index; index++) {
      if (NO_HOLES || index in self) {
        val = self[index];
        res = f(val, index, O);

        if (TYPE) {
          if (IS_MAP) result[index] = res;else if (res) switch (TYPE) {
            case 3:
              return true;

            case 5:
              return val;

            case 6:
              return index;

            case 2:
              result.push(val);
          } else if (IS_EVERY) return false;
        }
      }
    }

    return IS_FIND_INDEX ? -1 : IS_SOME || IS_EVERY ? IS_EVERY : result;
  };
};

/***/ }),
/* 105 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var speciesConstructor = __w_pdfjs_require__(106);

module.exports = function (original, length) {
  return new (speciesConstructor(original))(length);
};

/***/ }),
/* 106 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var isObject = __w_pdfjs_require__(13);

var isArray = __w_pdfjs_require__(107);

var SPECIES = __w_pdfjs_require__(33)('species');

module.exports = function (original) {
  var C;

  if (isArray(original)) {
    C = original.constructor;
    if (typeof C == 'function' && (C === Array || isArray(C.prototype))) C = undefined;

    if (isObject(C)) {
      C = C[SPECIES];
      if (C === null) C = undefined;
    }
  }

  return C === undefined ? Array : C;
};

/***/ }),
/* 107 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var cof = __w_pdfjs_require__(32);

module.exports = Array.isArray || function isArray(arg) {
  return cof(arg) == 'Array';
};

/***/ }),
/* 108 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

var META = __w_pdfjs_require__(22)('meta');

var isObject = __w_pdfjs_require__(13);

var has = __w_pdfjs_require__(21);

var setDesc = __w_pdfjs_require__(11).f;

var id = 0;

var isExtensible = Object.isExtensible || function () {
  return true;
};

var FREEZE = !__w_pdfjs_require__(16)(function () {
  return isExtensible(Object.preventExtensions({}));
});

var setMeta = function setMeta(it) {
  setDesc(it, META, {
    value: {
      i: 'O' + ++id,
      w: {}
    }
  });
};

var fastKey = function fastKey(it, create) {
  if (!isObject(it)) return _typeof(it) == 'symbol' ? it : (typeof it == 'string' ? 'S' : 'P') + it;

  if (!has(it, META)) {
    if (!isExtensible(it)) return 'F';
    if (!create) return 'E';
    setMeta(it);
  }

  return it[META].i;
};

var getWeak = function getWeak(it, create) {
  if (!has(it, META)) {
    if (!isExtensible(it)) return true;
    if (!create) return false;
    setMeta(it);
  }

  return it[META].w;
};

var onFreeze = function onFreeze(it) {
  if (FREEZE && meta.NEED && isExtensible(it) && !has(it, META)) setMeta(it);
  return it;
};

var meta = module.exports = {
  KEY: META,
  NEED: false,
  fastKey: fastKey,
  getWeak: getWeak,
  onFreeze: onFreeze
};

/***/ }),
/* 109 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var redefineAll = __w_pdfjs_require__(98);

var getWeak = __w_pdfjs_require__(108).getWeak;

var anObject = __w_pdfjs_require__(12);

var isObject = __w_pdfjs_require__(13);

var anInstance = __w_pdfjs_require__(88);

var forOf = __w_pdfjs_require__(89);

var createArrayMethod = __w_pdfjs_require__(104);

var $has = __w_pdfjs_require__(21);

var validate = __w_pdfjs_require__(110);

var arrayFind = createArrayMethod(5);
var arrayFindIndex = createArrayMethod(6);
var id = 0;

var uncaughtFrozenStore = function uncaughtFrozenStore(that) {
  return that._l || (that._l = new UncaughtFrozenStore());
};

var UncaughtFrozenStore = function UncaughtFrozenStore() {
  this.a = [];
};

var findUncaughtFrozen = function findUncaughtFrozen(store, key) {
  return arrayFind(store.a, function (it) {
    return it[0] === key;
  });
};

UncaughtFrozenStore.prototype = {
  get: function get(key) {
    var entry = findUncaughtFrozen(this, key);
    if (entry) return entry[1];
  },
  has: function has(key) {
    return !!findUncaughtFrozen(this, key);
  },
  set: function set(key, value) {
    var entry = findUncaughtFrozen(this, key);
    if (entry) entry[1] = value;else this.a.push([key, value]);
  },
  'delete': function _delete(key) {
    var index = arrayFindIndex(this.a, function (it) {
      return it[0] === key;
    });
    if (~index) this.a.splice(index, 1);
    return !!~index;
  }
};
module.exports = {
  getConstructor: function getConstructor(wrapper, NAME, IS_MAP, ADDER) {
    var C = wrapper(function (that, iterable) {
      anInstance(that, C, NAME, '_i');
      that._t = NAME;
      that._i = id++;
      that._l = undefined;
      if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);
    });
    redefineAll(C.prototype, {
      'delete': function _delete(key) {
        if (!isObject(key)) return false;
        var data = getWeak(key);
        if (data === true) return uncaughtFrozenStore(validate(this, NAME))['delete'](key);
        return data && $has(data, this._i) && delete data[this._i];
      },
      has: function has(key) {
        if (!isObject(key)) return false;
        var data = getWeak(key);
        if (data === true) return uncaughtFrozenStore(validate(this, NAME)).has(key);
        return data && $has(data, this._i);
      }
    });
    return C;
  },
  def: function def(that, key, value) {
    var data = getWeak(anObject(key), true);
    if (data === true) uncaughtFrozenStore(that).set(key, value);else data[that._i] = value;
    return that;
  },
  ufstore: uncaughtFrozenStore
};

/***/ }),
/* 110 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var isObject = __w_pdfjs_require__(13);

module.exports = function (it, TYPE) {
  if (!isObject(it) || it._t !== TYPE) throw TypeError('Incompatible receiver, ' + TYPE + ' required!');
  return it;
};

/***/ }),
/* 111 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var global = __w_pdfjs_require__(8);

var $export = __w_pdfjs_require__(7);

var redefine = __w_pdfjs_require__(20);

var redefineAll = __w_pdfjs_require__(98);

var meta = __w_pdfjs_require__(108);

var forOf = __w_pdfjs_require__(89);

var anInstance = __w_pdfjs_require__(88);

var isObject = __w_pdfjs_require__(13);

var fails = __w_pdfjs_require__(16);

var $iterDetect = __w_pdfjs_require__(69);

var setToStringTag = __w_pdfjs_require__(60);

var inheritIfRequired = __w_pdfjs_require__(112);

module.exports = function (NAME, wrapper, methods, common, IS_MAP, IS_WEAK) {
  var Base = global[NAME];
  var C = Base;
  var ADDER = IS_MAP ? 'set' : 'add';
  var proto = C && C.prototype;
  var O = {};

  var fixMethod = function fixMethod(KEY) {
    var fn = proto[KEY];
    redefine(proto, KEY, KEY == 'delete' ? function (a) {
      return IS_WEAK && !isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);
    } : KEY == 'has' ? function has(a) {
      return IS_WEAK && !isObject(a) ? false : fn.call(this, a === 0 ? 0 : a);
    } : KEY == 'get' ? function get(a) {
      return IS_WEAK && !isObject(a) ? undefined : fn.call(this, a === 0 ? 0 : a);
    } : KEY == 'add' ? function add(a) {
      fn.call(this, a === 0 ? 0 : a);
      return this;
    } : function set(a, b) {
      fn.call(this, a === 0 ? 0 : a, b);
      return this;
    });
  };

  if (typeof C != 'function' || !(IS_WEAK || proto.forEach && !fails(function () {
    new C().entries().next();
  }))) {
    C = common.getConstructor(wrapper, NAME, IS_MAP, ADDER);
    redefineAll(C.prototype, methods);
    meta.NEED = true;
  } else {
    var instance = new C();
    var HASNT_CHAINING = instance[ADDER](IS_WEAK ? {} : -0, 1) != instance;
    var THROWS_ON_PRIMITIVES = fails(function () {
      instance.has(1);
    });
    var ACCEPT_ITERABLES = $iterDetect(function (iter) {
      new C(iter);
    });
    var BUGGY_ZERO = !IS_WEAK && fails(function () {
      var $instance = new C();
      var index = 5;

      while (index--) {
        $instance[ADDER](index, index);
      }

      return !$instance.has(-0);
    });

    if (!ACCEPT_ITERABLES) {
      C = wrapper(function (target, iterable) {
        anInstance(target, C, NAME);
        var that = inheritIfRequired(new Base(), target, C);
        if (iterable != undefined) forOf(iterable, IS_MAP, that[ADDER], that);
        return that;
      });
      C.prototype = proto;
      proto.constructor = C;
    }

    if (THROWS_ON_PRIMITIVES || BUGGY_ZERO) {
      fixMethod('delete');
      fixMethod('has');
      IS_MAP && fixMethod('get');
    }

    if (BUGGY_ZERO || HASNT_CHAINING) fixMethod(ADDER);
    if (IS_WEAK && proto.clear) delete proto.clear;
  }

  setToStringTag(C, NAME);
  O[NAME] = C;
  $export($export.G + $export.W + $export.F * (C != Base), O);
  if (!IS_WEAK) common.setStrong(C, NAME, IS_MAP);
  return C;
};

/***/ }),
/* 112 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var isObject = __w_pdfjs_require__(13);

var setPrototypeOf = __w_pdfjs_require__(113).set;

module.exports = function (that, target, C) {
  var S = target.constructor;
  var P;

  if (S !== C && typeof S == 'function' && (P = S.prototype) !== C.prototype && isObject(P) && setPrototypeOf) {
    setPrototypeOf(that, P);
  }

  return that;
};

/***/ }),
/* 113 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var isObject = __w_pdfjs_require__(13);

var anObject = __w_pdfjs_require__(12);

var check = function check(O, proto) {
  anObject(O);
  if (!isObject(proto) && proto !== null) throw TypeError(proto + ": can't set as prototype!");
};

module.exports = {
  set: Object.setPrototypeOf || ('__proto__' in {} ? function (test, buggy, set) {
    try {
      set = __w_pdfjs_require__(26)(Function.call, __w_pdfjs_require__(114).f(Object.prototype, '__proto__').set, 2);
      set(test, []);
      buggy = !(test instanceof Array);
    } catch (e) {
      buggy = true;
    }

    return function setPrototypeOf(O, proto) {
      check(O, proto);
      if (buggy) O.__proto__ = proto;else set(O, proto);
      return O;
    };
  }({}, false) : undefined),
  check: check
};

/***/ }),
/* 114 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var pIE = __w_pdfjs_require__(74);

var createDesc = __w_pdfjs_require__(19);

var toIObject = __w_pdfjs_require__(43);

var toPrimitive = __w_pdfjs_require__(18);

var has = __w_pdfjs_require__(21);

var IE8_DOM_DEFINE = __w_pdfjs_require__(14);

var gOPD = Object.getOwnPropertyDescriptor;
exports.f = __w_pdfjs_require__(15) ? gOPD : function getOwnPropertyDescriptor(O, P) {
  O = toIObject(O);
  P = toPrimitive(P, true);
  if (IE8_DOM_DEFINE) try {
    return gOPD(O, P);
  } catch (e) {}
  if (has(O, P)) return createDesc(!pIE.f.call(O, P), O[P]);
};

/***/ }),
/* 115 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(116)('WeakMap');

/***/ }),
/* 116 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

module.exports = function (COLLECTION) {
  $export($export.S, COLLECTION, {
    of: function of() {
      var length = arguments.length;
      var A = new Array(length);

      while (length--) {
        A[length] = arguments[length];
      }

      return new this(A);
    }
  });
};

/***/ }),
/* 117 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(118)('WeakMap');

/***/ }),
/* 118 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var aFunction = __w_pdfjs_require__(27);

var ctx = __w_pdfjs_require__(26);

var forOf = __w_pdfjs_require__(89);

module.exports = function (COLLECTION) {
  $export($export.S, COLLECTION, {
    from: function from(source) {
      var mapFn = arguments[1];
      var mapping, A, n, cb;
      aFunction(this);
      mapping = mapFn !== undefined;
      if (mapping) aFunction(mapFn);
      if (source == undefined) return new this();
      A = [];

      if (mapping) {
        n = 0;
        cb = ctx(mapFn, arguments[2], 2);
        forOf(source, false, function (nextItem) {
          A.push(cb(nextItem, n++));
        });
      } else {
        forOf(source, false, A.push, A);
      }

      return new this(A);
    }
  });
};

/***/ }),
/* 119 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(83);

__w_pdfjs_require__(84);

__w_pdfjs_require__(120);

__w_pdfjs_require__(121);

__w_pdfjs_require__(122);

module.exports = __w_pdfjs_require__(9).WeakSet;

/***/ }),
/* 120 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var weak = __w_pdfjs_require__(109);

var validate = __w_pdfjs_require__(110);

var WEAK_SET = 'WeakSet';

__w_pdfjs_require__(111)(WEAK_SET, function (get) {
  return function WeakSet() {
    return get(this, arguments.length > 0 ? arguments[0] : undefined);
  };
}, {
  add: function add(value) {
    return weak.def(validate(this, WEAK_SET), value, true);
  }
}, weak, false, true);

/***/ }),
/* 121 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(116)('WeakSet');

/***/ }),
/* 122 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(118)('WeakSet');

/***/ }),
/* 123 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(124);

module.exports = __w_pdfjs_require__(9).String.codePointAt;

/***/ }),
/* 124 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var $at = __w_pdfjs_require__(49)(false);

$export($export.P, 'String', {
  codePointAt: function codePointAt(pos) {
    return $at(this, pos);
  }
});

/***/ }),
/* 125 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(126);

module.exports = __w_pdfjs_require__(9).String.fromCodePoint;

/***/ }),
/* 126 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var toAbsoluteIndex = __w_pdfjs_require__(45);

var fromCharCode = String.fromCharCode;
var $fromCodePoint = String.fromCodePoint;
$export($export.S + $export.F * (!!$fromCodePoint && $fromCodePoint.length != 1), 'String', {
  fromCodePoint: function fromCodePoint(x) {
    var res = [];
    var aLen = arguments.length;
    var i = 0;
    var code;

    while (aLen > i) {
      code = +arguments[i++];
      if (toAbsoluteIndex(code, 0x10ffff) !== code) throw RangeError(code + ' is not a valid code point');
      res.push(code < 0x10000 ? fromCharCode(code) : fromCharCode(((code -= 0x10000) >> 10) + 0xd800, code % 0x400 + 0xdc00));
    }

    return res.join('');
  }
});

/***/ }),
/* 127 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(128);

__w_pdfjs_require__(83);

module.exports = __w_pdfjs_require__(9).Symbol;

/***/ }),
/* 128 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

var global = __w_pdfjs_require__(8);

var has = __w_pdfjs_require__(21);

var DESCRIPTORS = __w_pdfjs_require__(15);

var $export = __w_pdfjs_require__(7);

var redefine = __w_pdfjs_require__(20);

var META = __w_pdfjs_require__(108).KEY;

var $fails = __w_pdfjs_require__(16);

var shared = __w_pdfjs_require__(24);

var setToStringTag = __w_pdfjs_require__(60);

var uid = __w_pdfjs_require__(22);

var wks = __w_pdfjs_require__(33);

var wksExt = __w_pdfjs_require__(129);

var wksDefine = __w_pdfjs_require__(130);

var enumKeys = __w_pdfjs_require__(131);

var isArray = __w_pdfjs_require__(107);

var anObject = __w_pdfjs_require__(12);

var isObject = __w_pdfjs_require__(13);

var toObject = __w_pdfjs_require__(62);

var toIObject = __w_pdfjs_require__(43);

var toPrimitive = __w_pdfjs_require__(18);

var createDesc = __w_pdfjs_require__(19);

var _create = __w_pdfjs_require__(53);

var gOPNExt = __w_pdfjs_require__(132);

var $GOPD = __w_pdfjs_require__(114);

var $GOPS = __w_pdfjs_require__(73);

var $DP = __w_pdfjs_require__(11);

var $keys = __w_pdfjs_require__(55);

var gOPD = $GOPD.f;
var dP = $DP.f;
var gOPN = gOPNExt.f;
var $Symbol = global.Symbol;
var $JSON = global.JSON;

var _stringify = $JSON && $JSON.stringify;

var PROTOTYPE = 'prototype';
var HIDDEN = wks('_hidden');
var TO_PRIMITIVE = wks('toPrimitive');
var isEnum = {}.propertyIsEnumerable;
var SymbolRegistry = shared('symbol-registry');
var AllSymbols = shared('symbols');
var OPSymbols = shared('op-symbols');
var ObjectProto = Object[PROTOTYPE];
var USE_NATIVE = typeof $Symbol == 'function' && !!$GOPS.f;
var QObject = global.QObject;
var setter = !QObject || !QObject[PROTOTYPE] || !QObject[PROTOTYPE].findChild;
var setSymbolDesc = DESCRIPTORS && $fails(function () {
  return _create(dP({}, 'a', {
    get: function get() {
      return dP(this, 'a', {
        value: 7
      }).a;
    }
  })).a != 7;
}) ? function (it, key, D) {
  var protoDesc = gOPD(ObjectProto, key);
  if (protoDesc) delete ObjectProto[key];
  dP(it, key, D);
  if (protoDesc && it !== ObjectProto) dP(ObjectProto, key, protoDesc);
} : dP;

var wrap = function wrap(tag) {
  var sym = AllSymbols[tag] = _create($Symbol[PROTOTYPE]);

  sym._k = tag;
  return sym;
};

var isSymbol = USE_NATIVE && _typeof($Symbol.iterator) == 'symbol' ? function (it) {
  return _typeof(it) == 'symbol';
} : function (it) {
  return it instanceof $Symbol;
};

var $defineProperty = function defineProperty(it, key, D) {
  if (it === ObjectProto) $defineProperty(OPSymbols, key, D);
  anObject(it);
  key = toPrimitive(key, true);
  anObject(D);

  if (has(AllSymbols, key)) {
    if (!D.enumerable) {
      if (!has(it, HIDDEN)) dP(it, HIDDEN, createDesc(1, {}));
      it[HIDDEN][key] = true;
    } else {
      if (has(it, HIDDEN) && it[HIDDEN][key]) it[HIDDEN][key] = false;
      D = _create(D, {
        enumerable: createDesc(0, false)
      });
    }

    return setSymbolDesc(it, key, D);
  }

  return dP(it, key, D);
};

var $defineProperties = function defineProperties(it, P) {
  anObject(it);
  var keys = enumKeys(P = toIObject(P));
  var i = 0;
  var l = keys.length;
  var key;

  while (l > i) {
    $defineProperty(it, key = keys[i++], P[key]);
  }

  return it;
};

var $create = function create(it, P) {
  return P === undefined ? _create(it) : $defineProperties(_create(it), P);
};

var $propertyIsEnumerable = function propertyIsEnumerable(key) {
  var E = isEnum.call(this, key = toPrimitive(key, true));
  if (this === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return false;
  return E || !has(this, key) || !has(AllSymbols, key) || has(this, HIDDEN) && this[HIDDEN][key] ? E : true;
};

var $getOwnPropertyDescriptor = function getOwnPropertyDescriptor(it, key) {
  it = toIObject(it);
  key = toPrimitive(key, true);
  if (it === ObjectProto && has(AllSymbols, key) && !has(OPSymbols, key)) return;
  var D = gOPD(it, key);
  if (D && has(AllSymbols, key) && !(has(it, HIDDEN) && it[HIDDEN][key])) D.enumerable = true;
  return D;
};

var $getOwnPropertyNames = function getOwnPropertyNames(it) {
  var names = gOPN(toIObject(it));
  var result = [];
  var i = 0;
  var key;

  while (names.length > i) {
    if (!has(AllSymbols, key = names[i++]) && key != HIDDEN && key != META) result.push(key);
  }

  return result;
};

var $getOwnPropertySymbols = function getOwnPropertySymbols(it) {
  var IS_OP = it === ObjectProto;
  var names = gOPN(IS_OP ? OPSymbols : toIObject(it));
  var result = [];
  var i = 0;
  var key;

  while (names.length > i) {
    if (has(AllSymbols, key = names[i++]) && (IS_OP ? has(ObjectProto, key) : true)) result.push(AllSymbols[key]);
  }

  return result;
};

if (!USE_NATIVE) {
  $Symbol = function _Symbol() {
    if (this instanceof $Symbol) throw TypeError('Symbol is not a constructor!');
    var tag = uid(arguments.length > 0 ? arguments[0] : undefined);

    var $set = function $set(value) {
      if (this === ObjectProto) $set.call(OPSymbols, value);
      if (has(this, HIDDEN) && has(this[HIDDEN], tag)) this[HIDDEN][tag] = false;
      setSymbolDesc(this, tag, createDesc(1, value));
    };

    if (DESCRIPTORS && setter) setSymbolDesc(ObjectProto, tag, {
      configurable: true,
      set: $set
    });
    return wrap(tag);
  };

  redefine($Symbol[PROTOTYPE], 'toString', function toString() {
    return this._k;
  });
  $GOPD.f = $getOwnPropertyDescriptor;
  $DP.f = $defineProperty;
  __w_pdfjs_require__(133).f = gOPNExt.f = $getOwnPropertyNames;
  __w_pdfjs_require__(74).f = $propertyIsEnumerable;
  $GOPS.f = $getOwnPropertySymbols;

  if (DESCRIPTORS && !__w_pdfjs_require__(25)) {
    redefine(ObjectProto, 'propertyIsEnumerable', $propertyIsEnumerable, true);
  }

  wksExt.f = function (name) {
    return wrap(wks(name));
  };
}

$export($export.G + $export.W + $export.F * !USE_NATIVE, {
  Symbol: $Symbol
});

for (var es6Symbols = 'hasInstance,isConcatSpreadable,iterator,match,replace,search,species,split,toPrimitive,toStringTag,unscopables'.split(','), j = 0; es6Symbols.length > j;) {
  wks(es6Symbols[j++]);
}

for (var wellKnownSymbols = $keys(wks.store), k = 0; wellKnownSymbols.length > k;) {
  wksDefine(wellKnownSymbols[k++]);
}

$export($export.S + $export.F * !USE_NATIVE, 'Symbol', {
  'for': function _for(key) {
    return has(SymbolRegistry, key += '') ? SymbolRegistry[key] : SymbolRegistry[key] = $Symbol(key);
  },
  keyFor: function keyFor(sym) {
    if (!isSymbol(sym)) throw TypeError(sym + ' is not a symbol!');

    for (var key in SymbolRegistry) {
      if (SymbolRegistry[key] === sym) return key;
    }
  },
  useSetter: function useSetter() {
    setter = true;
  },
  useSimple: function useSimple() {
    setter = false;
  }
});
$export($export.S + $export.F * !USE_NATIVE, 'Object', {
  create: $create,
  defineProperty: $defineProperty,
  defineProperties: $defineProperties,
  getOwnPropertyDescriptor: $getOwnPropertyDescriptor,
  getOwnPropertyNames: $getOwnPropertyNames,
  getOwnPropertySymbols: $getOwnPropertySymbols
});
var FAILS_ON_PRIMITIVES = $fails(function () {
  $GOPS.f(1);
});
$export($export.S + $export.F * FAILS_ON_PRIMITIVES, 'Object', {
  getOwnPropertySymbols: function getOwnPropertySymbols(it) {
    return $GOPS.f(toObject(it));
  }
});
$JSON && $export($export.S + $export.F * (!USE_NATIVE || $fails(function () {
  var S = $Symbol();
  return _stringify([S]) != '[null]' || _stringify({
    a: S
  }) != '{}' || _stringify(Object(S)) != '{}';
})), 'JSON', {
  stringify: function stringify(it) {
    var args = [it];
    var i = 1;
    var replacer, $replacer;

    while (arguments.length > i) {
      args.push(arguments[i++]);
    }

    $replacer = replacer = args[1];
    if (!isObject(replacer) && it === undefined || isSymbol(it)) return;
    if (!isArray(replacer)) replacer = function replacer(key, value) {
      if (typeof $replacer == 'function') value = $replacer.call(this, key, value);
      if (!isSymbol(value)) return value;
    };
    args[1] = replacer;
    return _stringify.apply($JSON, args);
  }
});
$Symbol[PROTOTYPE][TO_PRIMITIVE] || __w_pdfjs_require__(10)($Symbol[PROTOTYPE], TO_PRIMITIVE, $Symbol[PROTOTYPE].valueOf);
setToStringTag($Symbol, 'Symbol');
setToStringTag(Math, 'Math', true);
setToStringTag(global.JSON, 'JSON', true);

/***/ }),
/* 129 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


exports.f = __w_pdfjs_require__(33);

/***/ }),
/* 130 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var global = __w_pdfjs_require__(8);

var core = __w_pdfjs_require__(9);

var LIBRARY = __w_pdfjs_require__(25);

var wksExt = __w_pdfjs_require__(129);

var defineProperty = __w_pdfjs_require__(11).f;

module.exports = function (name) {
  var $Symbol = core.Symbol || (core.Symbol = LIBRARY ? {} : global.Symbol || {});
  if (name.charAt(0) != '_' && !(name in $Symbol)) defineProperty($Symbol, name, {
    value: wksExt.f(name)
  });
};

/***/ }),
/* 131 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var getKeys = __w_pdfjs_require__(55);

var gOPS = __w_pdfjs_require__(73);

var pIE = __w_pdfjs_require__(74);

module.exports = function (it) {
  var result = getKeys(it);
  var getSymbols = gOPS.f;

  if (getSymbols) {
    var symbols = getSymbols(it);
    var isEnum = pIE.f;
    var i = 0;
    var key;

    while (symbols.length > i) {
      if (isEnum.call(it, key = symbols[i++])) result.push(key);
    }
  }

  return result;
};

/***/ }),
/* 132 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

var toIObject = __w_pdfjs_require__(43);

var gOPN = __w_pdfjs_require__(133).f;

var toString = {}.toString;
var windowNames = (typeof window === "undefined" ? "undefined" : _typeof(window)) == 'object' && window && Object.getOwnPropertyNames ? Object.getOwnPropertyNames(window) : [];

var getWindowNames = function getWindowNames(it) {
  try {
    return gOPN(it);
  } catch (e) {
    return windowNames.slice();
  }
};

module.exports.f = function getOwnPropertyNames(it) {
  return windowNames && toString.call(it) == '[object Window]' ? getWindowNames(it) : gOPN(toIObject(it));
};

/***/ }),
/* 133 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $keys = __w_pdfjs_require__(56);

var hiddenKeys = __w_pdfjs_require__(58).concat('length', 'prototype');

exports.f = Object.getOwnPropertyNames || function getOwnPropertyNames(O) {
  return $keys(O, hiddenKeys);
};

/***/ }),
/* 134 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(135);

module.exports = __w_pdfjs_require__(9).String.padStart;

/***/ }),
/* 135 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var $pad = __w_pdfjs_require__(136);

var userAgent = __w_pdfjs_require__(96);

var WEBKIT_BUG = /Version\/10\.\d+(\.\d+)?( Mobile\/\w+)? Safari\//.test(userAgent);
$export($export.P + $export.F * WEBKIT_BUG, 'String', {
  padStart: function padStart(maxLength) {
    return $pad(this, maxLength, arguments.length > 1 ? arguments[1] : undefined, true);
  }
});

/***/ }),
/* 136 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var toLength = __w_pdfjs_require__(28);

var repeat = __w_pdfjs_require__(137);

var defined = __w_pdfjs_require__(34);

module.exports = function (that, maxLength, fillString, left) {
  var S = String(defined(that));
  var stringLength = S.length;
  var fillStr = fillString === undefined ? ' ' : String(fillString);
  var intMaxLength = toLength(maxLength);
  if (intMaxLength <= stringLength || fillStr == '') return S;
  var fillLen = intMaxLength - stringLength;
  var stringFiller = repeat.call(fillStr, Math.ceil(fillLen / fillStr.length));
  if (stringFiller.length > fillLen) stringFiller = stringFiller.slice(0, fillLen);
  return left ? stringFiller + S : S + stringFiller;
};

/***/ }),
/* 137 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var toInteger = __w_pdfjs_require__(29);

var defined = __w_pdfjs_require__(34);

module.exports = function repeat(count) {
  var str = String(defined(this));
  var res = '';
  var n = toInteger(count);
  if (n < 0 || n == Infinity) throw RangeError("Count can't be negative");

  for (; n > 0; (n >>>= 1) && (str += str)) {
    if (n & 1) res += str;
  }

  return res;
};

/***/ }),
/* 138 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(139);

module.exports = __w_pdfjs_require__(9).String.padEnd;

/***/ }),
/* 139 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var $pad = __w_pdfjs_require__(136);

var userAgent = __w_pdfjs_require__(96);

var WEBKIT_BUG = /Version\/10\.\d+(\.\d+)?( Mobile\/\w+)? Safari\//.test(userAgent);
$export($export.P + $export.F * WEBKIT_BUG, 'String', {
  padEnd: function padEnd(maxLength) {
    return $pad(this, maxLength, arguments.length > 1 ? arguments[1] : undefined, false);
  }
});

/***/ }),
/* 140 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


__w_pdfjs_require__(141);

module.exports = __w_pdfjs_require__(9).Object.values;

/***/ }),
/* 141 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var $export = __w_pdfjs_require__(7);

var $values = __w_pdfjs_require__(142)(false);

$export($export.S, 'Object', {
  values: function values(it) {
    return $values(it);
  }
});

/***/ }),
/* 142 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var DESCRIPTORS = __w_pdfjs_require__(15);

var getKeys = __w_pdfjs_require__(55);

var toIObject = __w_pdfjs_require__(43);

var isEnum = __w_pdfjs_require__(74).f;

module.exports = function (isEntries) {
  return function (it) {
    var O = toIObject(it);
    var keys = getKeys(O);
    var length = keys.length;
    var i = 0;
    var result = [];
    var key;

    while (length > i) {
      key = keys[i++];

      if (!DESCRIPTORS || isEnum.call(O, key)) {
        result.push(isEntries ? [key, O[key]] : O[key]);
      }
    }

    return result;
  };
};

/***/ }),
/* 143 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


{
  var isReadableStreamSupported = false;

  if (typeof ReadableStream !== 'undefined') {
    try {
      new ReadableStream({
        start: function start(controller) {
          controller.close();
        }
      });
      isReadableStreamSupported = true;
    } catch (e) {}
  }

  if (isReadableStreamSupported) {
    exports.ReadableStream = ReadableStream;
  } else {
    exports.ReadableStream = __w_pdfjs_require__(144).ReadableStream;
  }
}

/***/ }),
/* 144 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


function _typeof2(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof2 = function _typeof2(obj) { return typeof obj; }; } else { _typeof2 = function _typeof2(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof2(obj); }

(function (e, a) {
  for (var i in a) {
    e[i] = a[i];
  }
})(exports, function (modules) {
  var installedModules = {};

  function __w_pdfjs_require__(moduleId) {
    if (installedModules[moduleId]) return installedModules[moduleId].exports;
    var module = installedModules[moduleId] = {
      i: moduleId,
      l: false,
      exports: {}
    };
    modules[moduleId].call(module.exports, module, module.exports, __w_pdfjs_require__);
    module.l = true;
    return module.exports;
  }

  __w_pdfjs_require__.m = modules;
  __w_pdfjs_require__.c = installedModules;

  __w_pdfjs_require__.i = function (value) {
    return value;
  };

  __w_pdfjs_require__.d = function (exports, name, getter) {
    if (!__w_pdfjs_require__.o(exports, name)) {
      Object.defineProperty(exports, name, {
        configurable: false,
        enumerable: true,
        get: getter
      });
    }
  };

  __w_pdfjs_require__.n = function (module) {
    var getter = module && module.__esModule ? function getDefault() {
      return module['default'];
    } : function getModuleExports() {
      return module;
    };

    __w_pdfjs_require__.d(getter, 'a', getter);

    return getter;
  };

  __w_pdfjs_require__.o = function (object, property) {
    return Object.prototype.hasOwnProperty.call(object, property);
  };

  __w_pdfjs_require__.p = "";
  return __w_pdfjs_require__(__w_pdfjs_require__.s = 7);
}([function (module, exports, __w_pdfjs_require__) {
  "use strict";

  var _typeof = typeof Symbol === "function" && _typeof2(Symbol.iterator) === "symbol" ? function (obj) {
    return _typeof2(obj);
  } : function (obj) {
    return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : _typeof2(obj);
  };

  var _require = __w_pdfjs_require__(1),
      assert = _require.assert;

  function IsPropertyKey(argument) {
    return typeof argument === 'string' || (typeof argument === 'undefined' ? 'undefined' : _typeof(argument)) === 'symbol';
  }

  exports.typeIsObject = function (x) {
    return (typeof x === 'undefined' ? 'undefined' : _typeof(x)) === 'object' && x !== null || typeof x === 'function';
  };

  exports.createDataProperty = function (o, p, v) {
    assert(exports.typeIsObject(o));
    Object.defineProperty(o, p, {
      value: v,
      writable: true,
      enumerable: true,
      configurable: true
    });
  };

  exports.createArrayFromList = function (elements) {
    return elements.slice();
  };

  exports.ArrayBufferCopy = function (dest, destOffset, src, srcOffset, n) {
    new Uint8Array(dest).set(new Uint8Array(src, srcOffset, n), destOffset);
  };

  exports.CreateIterResultObject = function (value, done) {
    assert(typeof done === 'boolean');
    var obj = {};
    Object.defineProperty(obj, 'value', {
      value: value,
      enumerable: true,
      writable: true,
      configurable: true
    });
    Object.defineProperty(obj, 'done', {
      value: done,
      enumerable: true,
      writable: true,
      configurable: true
    });
    return obj;
  };

  exports.IsFiniteNonNegativeNumber = function (v) {
    if (Number.isNaN(v)) {
      return false;
    }

    if (v === Infinity) {
      return false;
    }

    if (v < 0) {
      return false;
    }

    return true;
  };

  function Call(F, V, args) {
    if (typeof F !== 'function') {
      throw new TypeError('Argument is not a function');
    }

    return Function.prototype.apply.call(F, V, args);
  }

  exports.InvokeOrNoop = function (O, P, args) {
    assert(O !== undefined);
    assert(IsPropertyKey(P));
    assert(Array.isArray(args));
    var method = O[P];

    if (method === undefined) {
      return undefined;
    }

    return Call(method, O, args);
  };

  exports.PromiseInvokeOrNoop = function (O, P, args) {
    assert(O !== undefined);
    assert(IsPropertyKey(P));
    assert(Array.isArray(args));

    try {
      return Promise.resolve(exports.InvokeOrNoop(O, P, args));
    } catch (returnValueE) {
      return Promise.reject(returnValueE);
    }
  };

  exports.PromiseInvokeOrPerformFallback = function (O, P, args, F, argsF) {
    assert(O !== undefined);
    assert(IsPropertyKey(P));
    assert(Array.isArray(args));
    assert(Array.isArray(argsF));
    var method = void 0;

    try {
      method = O[P];
    } catch (methodE) {
      return Promise.reject(methodE);
    }

    if (method === undefined) {
      return F.apply(null, argsF);
    }

    try {
      return Promise.resolve(Call(method, O, args));
    } catch (e) {
      return Promise.reject(e);
    }
  };

  exports.TransferArrayBuffer = function (O) {
    return O.slice();
  };

  exports.ValidateAndNormalizeHighWaterMark = function (highWaterMark) {
    highWaterMark = Number(highWaterMark);

    if (Number.isNaN(highWaterMark) || highWaterMark < 0) {
      throw new RangeError('highWaterMark property of a queuing strategy must be non-negative and non-NaN');
    }

    return highWaterMark;
  };

  exports.ValidateAndNormalizeQueuingStrategy = function (size, highWaterMark) {
    if (size !== undefined && typeof size !== 'function') {
      throw new TypeError('size property of a queuing strategy must be a function');
    }

    highWaterMark = exports.ValidateAndNormalizeHighWaterMark(highWaterMark);
    return {
      size: size,
      highWaterMark: highWaterMark
    };
  };
}, function (module, exports, __w_pdfjs_require__) {
  "use strict";

  function rethrowAssertionErrorRejection(e) {
    if (e && e.constructor === AssertionError) {
      setTimeout(function () {
        throw e;
      }, 0);
    }
  }

  function AssertionError(message) {
    this.name = 'AssertionError';
    this.message = message || '';
    this.stack = new Error().stack;
  }

  AssertionError.prototype = Object.create(Error.prototype);
  AssertionError.prototype.constructor = AssertionError;

  function assert(value, message) {
    if (!value) {
      throw new AssertionError(message);
    }
  }

  module.exports = {
    rethrowAssertionErrorRejection: rethrowAssertionErrorRejection,
    AssertionError: AssertionError,
    assert: assert
  };
}, function (module, exports, __w_pdfjs_require__) {
  "use strict";

  var _createClass = function () {
    function defineProperties(target, props) {
      for (var i = 0; i < props.length; i++) {
        var descriptor = props[i];
        descriptor.enumerable = descriptor.enumerable || false;
        descriptor.configurable = true;
        if ("value" in descriptor) descriptor.writable = true;
        Object.defineProperty(target, descriptor.key, descriptor);
      }
    }

    return function (Constructor, protoProps, staticProps) {
      if (protoProps) defineProperties(Constructor.prototype, protoProps);
      if (staticProps) defineProperties(Constructor, staticProps);
      return Constructor;
    };
  }();

  function _classCallCheck(instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a function");
    }
  }

  var _require = __w_pdfjs_require__(0),
      InvokeOrNoop = _require.InvokeOrNoop,
      PromiseInvokeOrNoop = _require.PromiseInvokeOrNoop,
      ValidateAndNormalizeQueuingStrategy = _require.ValidateAndNormalizeQueuingStrategy,
      typeIsObject = _require.typeIsObject;

  var _require2 = __w_pdfjs_require__(1),
      assert = _require2.assert,
      rethrowAssertionErrorRejection = _require2.rethrowAssertionErrorRejection;

  var _require3 = __w_pdfjs_require__(3),
      DequeueValue = _require3.DequeueValue,
      EnqueueValueWithSize = _require3.EnqueueValueWithSize,
      PeekQueueValue = _require3.PeekQueueValue,
      ResetQueue = _require3.ResetQueue;

  var WritableStream = function () {
    function WritableStream() {
      var underlyingSink = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

      var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
          size = _ref.size,
          _ref$highWaterMark = _ref.highWaterMark,
          highWaterMark = _ref$highWaterMark === undefined ? 1 : _ref$highWaterMark;

      _classCallCheck(this, WritableStream);

      this._state = 'writable';
      this._storedError = undefined;
      this._writer = undefined;
      this._writableStreamController = undefined;
      this._writeRequests = [];
      this._inFlightWriteRequest = undefined;
      this._closeRequest = undefined;
      this._inFlightCloseRequest = undefined;
      this._pendingAbortRequest = undefined;
      this._backpressure = false;
      var type = underlyingSink.type;

      if (type !== undefined) {
        throw new RangeError('Invalid type is specified');
      }

      this._writableStreamController = new WritableStreamDefaultController(this, underlyingSink, size, highWaterMark);

      this._writableStreamController.__startSteps();
    }

    _createClass(WritableStream, [{
      key: 'abort',
      value: function abort(reason) {
        if (IsWritableStream(this) === false) {
          return Promise.reject(streamBrandCheckException('abort'));
        }

        if (IsWritableStreamLocked(this) === true) {
          return Promise.reject(new TypeError('Cannot abort a stream that already has a writer'));
        }

        return WritableStreamAbort(this, reason);
      }
    }, {
      key: 'getWriter',
      value: function getWriter() {
        if (IsWritableStream(this) === false) {
          throw streamBrandCheckException('getWriter');
        }

        return AcquireWritableStreamDefaultWriter(this);
      }
    }, {
      key: 'locked',
      get: function get() {
        if (IsWritableStream(this) === false) {
          throw streamBrandCheckException('locked');
        }

        return IsWritableStreamLocked(this);
      }
    }]);

    return WritableStream;
  }();

  module.exports = {
    AcquireWritableStreamDefaultWriter: AcquireWritableStreamDefaultWriter,
    IsWritableStream: IsWritableStream,
    IsWritableStreamLocked: IsWritableStreamLocked,
    WritableStream: WritableStream,
    WritableStreamAbort: WritableStreamAbort,
    WritableStreamDefaultControllerError: WritableStreamDefaultControllerError,
    WritableStreamDefaultWriterCloseWithErrorPropagation: WritableStreamDefaultWriterCloseWithErrorPropagation,
    WritableStreamDefaultWriterRelease: WritableStreamDefaultWriterRelease,
    WritableStreamDefaultWriterWrite: WritableStreamDefaultWriterWrite,
    WritableStreamCloseQueuedOrInFlight: WritableStreamCloseQueuedOrInFlight
  };

  function AcquireWritableStreamDefaultWriter(stream) {
    return new WritableStreamDefaultWriter(stream);
  }

  function IsWritableStream(x) {
    if (!typeIsObject(x)) {
      return false;
    }

    if (!Object.prototype.hasOwnProperty.call(x, '_writableStreamController')) {
      return false;
    }

    return true;
  }

  function IsWritableStreamLocked(stream) {
    assert(IsWritableStream(stream) === true, 'IsWritableStreamLocked should only be used on known writable streams');

    if (stream._writer === undefined) {
      return false;
    }

    return true;
  }

  function WritableStreamAbort(stream, reason) {
    var state = stream._state;

    if (state === 'closed') {
      return Promise.resolve(undefined);
    }

    if (state === 'errored') {
      return Promise.reject(stream._storedError);
    }

    var error = new TypeError('Requested to abort');

    if (stream._pendingAbortRequest !== undefined) {
      return Promise.reject(error);
    }

    assert(state === 'writable' || state === 'erroring', 'state must be writable or erroring');
    var wasAlreadyErroring = false;

    if (state === 'erroring') {
      wasAlreadyErroring = true;
      reason = undefined;
    }

    var promise = new Promise(function (resolve, reject) {
      stream._pendingAbortRequest = {
        _resolve: resolve,
        _reject: reject,
        _reason: reason,
        _wasAlreadyErroring: wasAlreadyErroring
      };
    });

    if (wasAlreadyErroring === false) {
      WritableStreamStartErroring(stream, error);
    }

    return promise;
  }

  function WritableStreamAddWriteRequest(stream) {
    assert(IsWritableStreamLocked(stream) === true);
    assert(stream._state === 'writable');
    var promise = new Promise(function (resolve, reject) {
      var writeRequest = {
        _resolve: resolve,
        _reject: reject
      };

      stream._writeRequests.push(writeRequest);
    });
    return promise;
  }

  function WritableStreamDealWithRejection(stream, error) {
    var state = stream._state;

    if (state === 'writable') {
      WritableStreamStartErroring(stream, error);
      return;
    }

    assert(state === 'erroring');
    WritableStreamFinishErroring(stream);
  }

  function WritableStreamStartErroring(stream, reason) {
    assert(stream._storedError === undefined, 'stream._storedError === undefined');
    assert(stream._state === 'writable', 'state must be writable');
    var controller = stream._writableStreamController;
    assert(controller !== undefined, 'controller must not be undefined');
    stream._state = 'erroring';
    stream._storedError = reason;
    var writer = stream._writer;

    if (writer !== undefined) {
      WritableStreamDefaultWriterEnsureReadyPromiseRejected(writer, reason);
    }

    if (WritableStreamHasOperationMarkedInFlight(stream) === false && controller._started === true) {
      WritableStreamFinishErroring(stream);
    }
  }

  function WritableStreamFinishErroring(stream) {
    assert(stream._state === 'erroring', 'stream._state === erroring');
    assert(WritableStreamHasOperationMarkedInFlight(stream) === false, 'WritableStreamHasOperationMarkedInFlight(stream) === false');
    stream._state = 'errored';

    stream._writableStreamController.__errorSteps();

    var storedError = stream._storedError;

    for (var i = 0; i < stream._writeRequests.length; i++) {
      var writeRequest = stream._writeRequests[i];

      writeRequest._reject(storedError);
    }

    stream._writeRequests = [];

    if (stream._pendingAbortRequest === undefined) {
      WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);
      return;
    }

    var abortRequest = stream._pendingAbortRequest;
    stream._pendingAbortRequest = undefined;

    if (abortRequest._wasAlreadyErroring === true) {
      abortRequest._reject(storedError);

      WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);
      return;
    }

    var promise = stream._writableStreamController.__abortSteps(abortRequest._reason);

    promise.then(function () {
      abortRequest._resolve();

      WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);
    }, function (reason) {
      abortRequest._reject(reason);

      WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream);
    });
  }

  function WritableStreamFinishInFlightWrite(stream) {
    assert(stream._inFlightWriteRequest !== undefined);

    stream._inFlightWriteRequest._resolve(undefined);

    stream._inFlightWriteRequest = undefined;
  }

  function WritableStreamFinishInFlightWriteWithError(stream, error) {
    assert(stream._inFlightWriteRequest !== undefined);

    stream._inFlightWriteRequest._reject(error);

    stream._inFlightWriteRequest = undefined;
    assert(stream._state === 'writable' || stream._state === 'erroring');
    WritableStreamDealWithRejection(stream, error);
  }

  function WritableStreamFinishInFlightClose(stream) {
    assert(stream._inFlightCloseRequest !== undefined);

    stream._inFlightCloseRequest._resolve(undefined);

    stream._inFlightCloseRequest = undefined;
    var state = stream._state;
    assert(state === 'writable' || state === 'erroring');

    if (state === 'erroring') {
      stream._storedError = undefined;

      if (stream._pendingAbortRequest !== undefined) {
        stream._pendingAbortRequest._resolve();

        stream._pendingAbortRequest = undefined;
      }
    }

    stream._state = 'closed';
    var writer = stream._writer;

    if (writer !== undefined) {
      defaultWriterClosedPromiseResolve(writer);
    }

    assert(stream._pendingAbortRequest === undefined, 'stream._pendingAbortRequest === undefined');
    assert(stream._storedError === undefined, 'stream._storedError === undefined');
  }

  function WritableStreamFinishInFlightCloseWithError(stream, error) {
    assert(stream._inFlightCloseRequest !== undefined);

    stream._inFlightCloseRequest._reject(error);

    stream._inFlightCloseRequest = undefined;
    assert(stream._state === 'writable' || stream._state === 'erroring');

    if (stream._pendingAbortRequest !== undefined) {
      stream._pendingAbortRequest._reject(error);

      stream._pendingAbortRequest = undefined;
    }

    WritableStreamDealWithRejection(stream, error);
  }

  function WritableStreamCloseQueuedOrInFlight(stream) {
    if (stream._closeRequest === undefined && stream._inFlightCloseRequest === undefined) {
      return false;
    }

    return true;
  }

  function WritableStreamHasOperationMarkedInFlight(stream) {
    if (stream._inFlightWriteRequest === undefined && stream._inFlightCloseRequest === undefined) {
      return false;
    }

    return true;
  }

  function WritableStreamMarkCloseRequestInFlight(stream) {
    assert(stream._inFlightCloseRequest === undefined);
    assert(stream._closeRequest !== undefined);
    stream._inFlightCloseRequest = stream._closeRequest;
    stream._closeRequest = undefined;
  }

  function WritableStreamMarkFirstWriteRequestInFlight(stream) {
    assert(stream._inFlightWriteRequest === undefined, 'there must be no pending write request');
    assert(stream._writeRequests.length !== 0, 'writeRequests must not be empty');
    stream._inFlightWriteRequest = stream._writeRequests.shift();
  }

  function WritableStreamRejectCloseAndClosedPromiseIfNeeded(stream) {
    assert(stream._state === 'errored', '_stream_.[[state]] is `"errored"`');

    if (stream._closeRequest !== undefined) {
      assert(stream._inFlightCloseRequest === undefined);

      stream._closeRequest._reject(stream._storedError);

      stream._closeRequest = undefined;
    }

    var writer = stream._writer;

    if (writer !== undefined) {
      defaultWriterClosedPromiseReject(writer, stream._storedError);

      writer._closedPromise["catch"](function () {});
    }
  }

  function WritableStreamUpdateBackpressure(stream, backpressure) {
    assert(stream._state === 'writable');
    assert(WritableStreamCloseQueuedOrInFlight(stream) === false);
    var writer = stream._writer;

    if (writer !== undefined && backpressure !== stream._backpressure) {
      if (backpressure === true) {
        defaultWriterReadyPromiseReset(writer);
      } else {
        assert(backpressure === false);
        defaultWriterReadyPromiseResolve(writer);
      }
    }

    stream._backpressure = backpressure;
  }

  var WritableStreamDefaultWriter = function () {
    function WritableStreamDefaultWriter(stream) {
      _classCallCheck(this, WritableStreamDefaultWriter);

      if (IsWritableStream(stream) === false) {
        throw new TypeError('WritableStreamDefaultWriter can only be constructed with a WritableStream instance');
      }

      if (IsWritableStreamLocked(stream) === true) {
        throw new TypeError('This stream has already been locked for exclusive writing by another writer');
      }

      this._ownerWritableStream = stream;
      stream._writer = this;
      var state = stream._state;

      if (state === 'writable') {
        if (WritableStreamCloseQueuedOrInFlight(stream) === false && stream._backpressure === true) {
          defaultWriterReadyPromiseInitialize(this);
        } else {
          defaultWriterReadyPromiseInitializeAsResolved(this);
        }

        defaultWriterClosedPromiseInitialize(this);
      } else if (state === 'erroring') {
        defaultWriterReadyPromiseInitializeAsRejected(this, stream._storedError);

        this._readyPromise["catch"](function () {});

        defaultWriterClosedPromiseInitialize(this);
      } else if (state === 'closed') {
        defaultWriterReadyPromiseInitializeAsResolved(this);
        defaultWriterClosedPromiseInitializeAsResolved(this);
      } else {
        assert(state === 'errored', 'state must be errored');
        var storedError = stream._storedError;
        defaultWriterReadyPromiseInitializeAsRejected(this, storedError);

        this._readyPromise["catch"](function () {});

        defaultWriterClosedPromiseInitializeAsRejected(this, storedError);

        this._closedPromise["catch"](function () {});
      }
    }

    _createClass(WritableStreamDefaultWriter, [{
      key: 'abort',
      value: function abort(reason) {
        if (IsWritableStreamDefaultWriter(this) === false) {
          return Promise.reject(defaultWriterBrandCheckException('abort'));
        }

        if (this._ownerWritableStream === undefined) {
          return Promise.reject(defaultWriterLockException('abort'));
        }

        return WritableStreamDefaultWriterAbort(this, reason);
      }
    }, {
      key: 'close',
      value: function close() {
        if (IsWritableStreamDefaultWriter(this) === false) {
          return Promise.reject(defaultWriterBrandCheckException('close'));
        }

        var stream = this._ownerWritableStream;

        if (stream === undefined) {
          return Promise.reject(defaultWriterLockException('close'));
        }

        if (WritableStreamCloseQueuedOrInFlight(stream) === true) {
          return Promise.reject(new TypeError('cannot close an already-closing stream'));
        }

        return WritableStreamDefaultWriterClose(this);
      }
    }, {
      key: 'releaseLock',
      value: function releaseLock() {
        if (IsWritableStreamDefaultWriter(this) === false) {
          throw defaultWriterBrandCheckException('releaseLock');
        }

        var stream = this._ownerWritableStream;

        if (stream === undefined) {
          return;
        }

        assert(stream._writer !== undefined);
        WritableStreamDefaultWriterRelease(this);
      }
    }, {
      key: 'write',
      value: function write(chunk) {
        if (IsWritableStreamDefaultWriter(this) === false) {
          return Promise.reject(defaultWriterBrandCheckException('write'));
        }

        if (this._ownerWritableStream === undefined) {
          return Promise.reject(defaultWriterLockException('write to'));
        }

        return WritableStreamDefaultWriterWrite(this, chunk);
      }
    }, {
      key: 'closed',
      get: function get() {
        if (IsWritableStreamDefaultWriter(this) === false) {
          return Promise.reject(defaultWriterBrandCheckException('closed'));
        }

        return this._closedPromise;
      }
    }, {
      key: 'desiredSize',
      get: function get() {
        if (IsWritableStreamDefaultWriter(this) === false) {
          throw defaultWriterBrandCheckException('desiredSize');
        }

        if (this._ownerWritableStream === undefined) {
          throw defaultWriterLockException('desiredSize');
        }

        return WritableStreamDefaultWriterGetDesiredSize(this);
      }
    }, {
      key: 'ready',
      get: function get() {
        if (IsWritableStreamDefaultWriter(this) === false) {
          return Promise.reject(defaultWriterBrandCheckException('ready'));
        }

        return this._readyPromise;
      }
    }]);

    return WritableStreamDefaultWriter;
  }();

  function IsWritableStreamDefaultWriter(x) {
    if (!typeIsObject(x)) {
      return false;
    }

    if (!Object.prototype.hasOwnProperty.call(x, '_ownerWritableStream')) {
      return false;
    }

    return true;
  }

  function WritableStreamDefaultWriterAbort(writer, reason) {
    var stream = writer._ownerWritableStream;
    assert(stream !== undefined);
    return WritableStreamAbort(stream, reason);
  }

  function WritableStreamDefaultWriterClose(writer) {
    var stream = writer._ownerWritableStream;
    assert(stream !== undefined);
    var state = stream._state;

    if (state === 'closed' || state === 'errored') {
      return Promise.reject(new TypeError('The stream (in ' + state + ' state) is not in the writable state and cannot be closed'));
    }

    assert(state === 'writable' || state === 'erroring');
    assert(WritableStreamCloseQueuedOrInFlight(stream) === false);
    var promise = new Promise(function (resolve, reject) {
      var closeRequest = {
        _resolve: resolve,
        _reject: reject
      };
      stream._closeRequest = closeRequest;
    });

    if (stream._backpressure === true && state === 'writable') {
      defaultWriterReadyPromiseResolve(writer);
    }

    WritableStreamDefaultControllerClose(stream._writableStreamController);
    return promise;
  }

  function WritableStreamDefaultWriterCloseWithErrorPropagation(writer) {
    var stream = writer._ownerWritableStream;
    assert(stream !== undefined);
    var state = stream._state;

    if (WritableStreamCloseQueuedOrInFlight(stream) === true || state === 'closed') {
      return Promise.resolve();
    }

    if (state === 'errored') {
      return Promise.reject(stream._storedError);
    }

    assert(state === 'writable' || state === 'erroring');
    return WritableStreamDefaultWriterClose(writer);
  }

  function WritableStreamDefaultWriterEnsureClosedPromiseRejected(writer, error) {
    if (writer._closedPromiseState === 'pending') {
      defaultWriterClosedPromiseReject(writer, error);
    } else {
      defaultWriterClosedPromiseResetToRejected(writer, error);
    }

    writer._closedPromise["catch"](function () {});
  }

  function WritableStreamDefaultWriterEnsureReadyPromiseRejected(writer, error) {
    if (writer._readyPromiseState === 'pending') {
      defaultWriterReadyPromiseReject(writer, error);
    } else {
      defaultWriterReadyPromiseResetToRejected(writer, error);
    }

    writer._readyPromise["catch"](function () {});
  }

  function WritableStreamDefaultWriterGetDesiredSize(writer) {
    var stream = writer._ownerWritableStream;
    var state = stream._state;

    if (state === 'errored' || state === 'erroring') {
      return null;
    }

    if (state === 'closed') {
      return 0;
    }

    return WritableStreamDefaultControllerGetDesiredSize(stream._writableStreamController);
  }

  function WritableStreamDefaultWriterRelease(writer) {
    var stream = writer._ownerWritableStream;
    assert(stream !== undefined);
    assert(stream._writer === writer);
    var releasedError = new TypeError('Writer was released and can no longer be used to monitor the stream\'s closedness');
    WritableStreamDefaultWriterEnsureReadyPromiseRejected(writer, releasedError);
    WritableStreamDefaultWriterEnsureClosedPromiseRejected(writer, releasedError);
    stream._writer = undefined;
    writer._ownerWritableStream = undefined;
  }

  function WritableStreamDefaultWriterWrite(writer, chunk) {
    var stream = writer._ownerWritableStream;
    assert(stream !== undefined);
    var controller = stream._writableStreamController;
    var chunkSize = WritableStreamDefaultControllerGetChunkSize(controller, chunk);

    if (stream !== writer._ownerWritableStream) {
      return Promise.reject(defaultWriterLockException('write to'));
    }

    var state = stream._state;

    if (state === 'errored') {
      return Promise.reject(stream._storedError);
    }

    if (WritableStreamCloseQueuedOrInFlight(stream) === true || state === 'closed') {
      return Promise.reject(new TypeError('The stream is closing or closed and cannot be written to'));
    }

    if (state === 'erroring') {
      return Promise.reject(stream._storedError);
    }

    assert(state === 'writable');
    var promise = WritableStreamAddWriteRequest(stream);
    WritableStreamDefaultControllerWrite(controller, chunk, chunkSize);
    return promise;
  }

  var WritableStreamDefaultController = function () {
    function WritableStreamDefaultController(stream, underlyingSink, size, highWaterMark) {
      _classCallCheck(this, WritableStreamDefaultController);

      if (IsWritableStream(stream) === false) {
        throw new TypeError('WritableStreamDefaultController can only be constructed with a WritableStream instance');
      }

      if (stream._writableStreamController !== undefined) {
        throw new TypeError('WritableStreamDefaultController instances can only be created by the WritableStream constructor');
      }

      this._controlledWritableStream = stream;
      this._underlyingSink = underlyingSink;
      this._queue = undefined;
      this._queueTotalSize = undefined;
      ResetQueue(this);
      this._started = false;
      var normalizedStrategy = ValidateAndNormalizeQueuingStrategy(size, highWaterMark);
      this._strategySize = normalizedStrategy.size;
      this._strategyHWM = normalizedStrategy.highWaterMark;
      var backpressure = WritableStreamDefaultControllerGetBackpressure(this);
      WritableStreamUpdateBackpressure(stream, backpressure);
    }

    _createClass(WritableStreamDefaultController, [{
      key: 'error',
      value: function error(e) {
        if (IsWritableStreamDefaultController(this) === false) {
          throw new TypeError('WritableStreamDefaultController.prototype.error can only be used on a WritableStreamDefaultController');
        }

        var state = this._controlledWritableStream._state;

        if (state !== 'writable') {
          return;
        }

        WritableStreamDefaultControllerError(this, e);
      }
    }, {
      key: '__abortSteps',
      value: function __abortSteps(reason) {
        return PromiseInvokeOrNoop(this._underlyingSink, 'abort', [reason]);
      }
    }, {
      key: '__errorSteps',
      value: function __errorSteps() {
        ResetQueue(this);
      }
    }, {
      key: '__startSteps',
      value: function __startSteps() {
        var _this = this;

        var startResult = InvokeOrNoop(this._underlyingSink, 'start', [this]);
        var stream = this._controlledWritableStream;
        Promise.resolve(startResult).then(function () {
          assert(stream._state === 'writable' || stream._state === 'erroring');
          _this._started = true;
          WritableStreamDefaultControllerAdvanceQueueIfNeeded(_this);
        }, function (r) {
          assert(stream._state === 'writable' || stream._state === 'erroring');
          _this._started = true;
          WritableStreamDealWithRejection(stream, r);
        })["catch"](rethrowAssertionErrorRejection);
      }
    }]);

    return WritableStreamDefaultController;
  }();

  function WritableStreamDefaultControllerClose(controller) {
    EnqueueValueWithSize(controller, 'close', 0);
    WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);
  }

  function WritableStreamDefaultControllerGetChunkSize(controller, chunk) {
    var strategySize = controller._strategySize;

    if (strategySize === undefined) {
      return 1;
    }

    try {
      return strategySize(chunk);
    } catch (chunkSizeE) {
      WritableStreamDefaultControllerErrorIfNeeded(controller, chunkSizeE);
      return 1;
    }
  }

  function WritableStreamDefaultControllerGetDesiredSize(controller) {
    return controller._strategyHWM - controller._queueTotalSize;
  }

  function WritableStreamDefaultControllerWrite(controller, chunk, chunkSize) {
    var writeRecord = {
      chunk: chunk
    };

    try {
      EnqueueValueWithSize(controller, writeRecord, chunkSize);
    } catch (enqueueE) {
      WritableStreamDefaultControllerErrorIfNeeded(controller, enqueueE);
      return;
    }

    var stream = controller._controlledWritableStream;

    if (WritableStreamCloseQueuedOrInFlight(stream) === false && stream._state === 'writable') {
      var backpressure = WritableStreamDefaultControllerGetBackpressure(controller);
      WritableStreamUpdateBackpressure(stream, backpressure);
    }

    WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);
  }

  function IsWritableStreamDefaultController(x) {
    if (!typeIsObject(x)) {
      return false;
    }

    if (!Object.prototype.hasOwnProperty.call(x, '_underlyingSink')) {
      return false;
    }

    return true;
  }

  function WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller) {
    var stream = controller._controlledWritableStream;

    if (controller._started === false) {
      return;
    }

    if (stream._inFlightWriteRequest !== undefined) {
      return;
    }

    var state = stream._state;

    if (state === 'closed' || state === 'errored') {
      return;
    }

    if (state === 'erroring') {
      WritableStreamFinishErroring(stream);
      return;
    }

    if (controller._queue.length === 0) {
      return;
    }

    var writeRecord = PeekQueueValue(controller);

    if (writeRecord === 'close') {
      WritableStreamDefaultControllerProcessClose(controller);
    } else {
      WritableStreamDefaultControllerProcessWrite(controller, writeRecord.chunk);
    }
  }

  function WritableStreamDefaultControllerErrorIfNeeded(controller, error) {
    if (controller._controlledWritableStream._state === 'writable') {
      WritableStreamDefaultControllerError(controller, error);
    }
  }

  function WritableStreamDefaultControllerProcessClose(controller) {
    var stream = controller._controlledWritableStream;
    WritableStreamMarkCloseRequestInFlight(stream);
    DequeueValue(controller);
    assert(controller._queue.length === 0, 'queue must be empty once the final write record is dequeued');
    var sinkClosePromise = PromiseInvokeOrNoop(controller._underlyingSink, 'close', []);
    sinkClosePromise.then(function () {
      WritableStreamFinishInFlightClose(stream);
    }, function (reason) {
      WritableStreamFinishInFlightCloseWithError(stream, reason);
    })["catch"](rethrowAssertionErrorRejection);
  }

  function WritableStreamDefaultControllerProcessWrite(controller, chunk) {
    var stream = controller._controlledWritableStream;
    WritableStreamMarkFirstWriteRequestInFlight(stream);
    var sinkWritePromise = PromiseInvokeOrNoop(controller._underlyingSink, 'write', [chunk, controller]);
    sinkWritePromise.then(function () {
      WritableStreamFinishInFlightWrite(stream);
      var state = stream._state;
      assert(state === 'writable' || state === 'erroring');
      DequeueValue(controller);

      if (WritableStreamCloseQueuedOrInFlight(stream) === false && state === 'writable') {
        var backpressure = WritableStreamDefaultControllerGetBackpressure(controller);
        WritableStreamUpdateBackpressure(stream, backpressure);
      }

      WritableStreamDefaultControllerAdvanceQueueIfNeeded(controller);
    }, function (reason) {
      WritableStreamFinishInFlightWriteWithError(stream, reason);
    })["catch"](rethrowAssertionErrorRejection);
  }

  function WritableStreamDefaultControllerGetBackpressure(controller) {
    var desiredSize = WritableStreamDefaultControllerGetDesiredSize(controller);
    return desiredSize <= 0;
  }

  function WritableStreamDefaultControllerError(controller, error) {
    var stream = controller._controlledWritableStream;
    assert(stream._state === 'writable');
    WritableStreamStartErroring(stream, error);
  }

  function streamBrandCheckException(name) {
    return new TypeError('WritableStream.prototype.' + name + ' can only be used on a WritableStream');
  }

  function defaultWriterBrandCheckException(name) {
    return new TypeError('WritableStreamDefaultWriter.prototype.' + name + ' can only be used on a WritableStreamDefaultWriter');
  }

  function defaultWriterLockException(name) {
    return new TypeError('Cannot ' + name + ' a stream using a released writer');
  }

  function defaultWriterClosedPromiseInitialize(writer) {
    writer._closedPromise = new Promise(function (resolve, reject) {
      writer._closedPromise_resolve = resolve;
      writer._closedPromise_reject = reject;
      writer._closedPromiseState = 'pending';
    });
  }

  function defaultWriterClosedPromiseInitializeAsRejected(writer, reason) {
    writer._closedPromise = Promise.reject(reason);
    writer._closedPromise_resolve = undefined;
    writer._closedPromise_reject = undefined;
    writer._closedPromiseState = 'rejected';
  }

  function defaultWriterClosedPromiseInitializeAsResolved(writer) {
    writer._closedPromise = Promise.resolve(undefined);
    writer._closedPromise_resolve = undefined;
    writer._closedPromise_reject = undefined;
    writer._closedPromiseState = 'resolved';
  }

  function defaultWriterClosedPromiseReject(writer, reason) {
    assert(writer._closedPromise_resolve !== undefined, 'writer._closedPromise_resolve !== undefined');
    assert(writer._closedPromise_reject !== undefined, 'writer._closedPromise_reject !== undefined');
    assert(writer._closedPromiseState === 'pending', 'writer._closedPromiseState is pending');

    writer._closedPromise_reject(reason);

    writer._closedPromise_resolve = undefined;
    writer._closedPromise_reject = undefined;
    writer._closedPromiseState = 'rejected';
  }

  function defaultWriterClosedPromiseResetToRejected(writer, reason) {
    assert(writer._closedPromise_resolve === undefined, 'writer._closedPromise_resolve === undefined');
    assert(writer._closedPromise_reject === undefined, 'writer._closedPromise_reject === undefined');
    assert(writer._closedPromiseState !== 'pending', 'writer._closedPromiseState is not pending');
    writer._closedPromise = Promise.reject(reason);
    writer._closedPromiseState = 'rejected';
  }

  function defaultWriterClosedPromiseResolve(writer) {
    assert(writer._closedPromise_resolve !== undefined, 'writer._closedPromise_resolve !== undefined');
    assert(writer._closedPromise_reject !== undefined, 'writer._closedPromise_reject !== undefined');
    assert(writer._closedPromiseState === 'pending', 'writer._closedPromiseState is pending');

    writer._closedPromise_resolve(undefined);

    writer._closedPromise_resolve = undefined;
    writer._closedPromise_reject = undefined;
    writer._closedPromiseState = 'resolved';
  }

  function defaultWriterReadyPromiseInitialize(writer) {
    writer._readyPromise = new Promise(function (resolve, reject) {
      writer._readyPromise_resolve = resolve;
      writer._readyPromise_reject = reject;
    });
    writer._readyPromiseState = 'pending';
  }

  function defaultWriterReadyPromiseInitializeAsRejected(writer, reason) {
    writer._readyPromise = Promise.reject(reason);
    writer._readyPromise_resolve = undefined;
    writer._readyPromise_reject = undefined;
    writer._readyPromiseState = 'rejected';
  }

  function defaultWriterReadyPromiseInitializeAsResolved(writer) {
    writer._readyPromise = Promise.resolve(undefined);
    writer._readyPromise_resolve = undefined;
    writer._readyPromise_reject = undefined;
    writer._readyPromiseState = 'fulfilled';
  }

  function defaultWriterReadyPromiseReject(writer, reason) {
    assert(writer._readyPromise_resolve !== undefined, 'writer._readyPromise_resolve !== undefined');
    assert(writer._readyPromise_reject !== undefined, 'writer._readyPromise_reject !== undefined');

    writer._readyPromise_reject(reason);

    writer._readyPromise_resolve = undefined;
    writer._readyPromise_reject = undefined;
    writer._readyPromiseState = 'rejected';
  }

  function defaultWriterReadyPromiseReset(writer) {
    assert(writer._readyPromise_resolve === undefined, 'writer._readyPromise_resolve === undefined');
    assert(writer._readyPromise_reject === undefined, 'writer._readyPromise_reject === undefined');
    writer._readyPromise = new Promise(function (resolve, reject) {
      writer._readyPromise_resolve = resolve;
      writer._readyPromise_reject = reject;
    });
    writer._readyPromiseState = 'pending';
  }

  function defaultWriterReadyPromiseResetToRejected(writer, reason) {
    assert(writer._readyPromise_resolve === undefined, 'writer._readyPromise_resolve === undefined');
    assert(writer._readyPromise_reject === undefined, 'writer._readyPromise_reject === undefined');
    writer._readyPromise = Promise.reject(reason);
    writer._readyPromiseState = 'rejected';
  }

  function defaultWriterReadyPromiseResolve(writer) {
    assert(writer._readyPromise_resolve !== undefined, 'writer._readyPromise_resolve !== undefined');
    assert(writer._readyPromise_reject !== undefined, 'writer._readyPromise_reject !== undefined');

    writer._readyPromise_resolve(undefined);

    writer._readyPromise_resolve = undefined;
    writer._readyPromise_reject = undefined;
    writer._readyPromiseState = 'fulfilled';
  }
}, function (module, exports, __w_pdfjs_require__) {
  "use strict";

  var _require = __w_pdfjs_require__(0),
      IsFiniteNonNegativeNumber = _require.IsFiniteNonNegativeNumber;

  var _require2 = __w_pdfjs_require__(1),
      assert = _require2.assert;

  exports.DequeueValue = function (container) {
    assert('_queue' in container && '_queueTotalSize' in container, 'Spec-level failure: DequeueValue should only be used on containers with [[queue]] and [[queueTotalSize]].');
    assert(container._queue.length > 0, 'Spec-level failure: should never dequeue from an empty queue.');

    var pair = container._queue.shift();

    container._queueTotalSize -= pair.size;

    if (container._queueTotalSize < 0) {
      container._queueTotalSize = 0;
    }

    return pair.value;
  };

  exports.EnqueueValueWithSize = function (container, value, size) {
    assert('_queue' in container && '_queueTotalSize' in container, 'Spec-level failure: EnqueueValueWithSize should only be used on containers with [[queue]] and ' + '[[queueTotalSize]].');
    size = Number(size);

    if (!IsFiniteNonNegativeNumber(size)) {
      throw new RangeError('Size must be a finite, non-NaN, non-negative number.');
    }

    container._queue.push({
      value: value,
      size: size
    });

    container._queueTotalSize += size;
  };

  exports.PeekQueueValue = function (container) {
    assert('_queue' in container && '_queueTotalSize' in container, 'Spec-level failure: PeekQueueValue should only be used on containers with [[queue]] and [[queueTotalSize]].');
    assert(container._queue.length > 0, 'Spec-level failure: should never peek at an empty queue.');
    var pair = container._queue[0];
    return pair.value;
  };

  exports.ResetQueue = function (container) {
    assert('_queue' in container && '_queueTotalSize' in container, 'Spec-level failure: ResetQueue should only be used on containers with [[queue]] and [[queueTotalSize]].');
    container._queue = [];
    container._queueTotalSize = 0;
  };
}, function (module, exports, __w_pdfjs_require__) {
  "use strict";

  var _createClass = function () {
    function defineProperties(target, props) {
      for (var i = 0; i < props.length; i++) {
        var descriptor = props[i];
        descriptor.enumerable = descriptor.enumerable || false;
        descriptor.configurable = true;
        if ("value" in descriptor) descriptor.writable = true;
        Object.defineProperty(target, descriptor.key, descriptor);
      }
    }

    return function (Constructor, protoProps, staticProps) {
      if (protoProps) defineProperties(Constructor.prototype, protoProps);
      if (staticProps) defineProperties(Constructor, staticProps);
      return Constructor;
    };
  }();

  function _classCallCheck(instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a function");
    }
  }

  var _require = __w_pdfjs_require__(0),
      ArrayBufferCopy = _require.ArrayBufferCopy,
      CreateIterResultObject = _require.CreateIterResultObject,
      IsFiniteNonNegativeNumber = _require.IsFiniteNonNegativeNumber,
      InvokeOrNoop = _require.InvokeOrNoop,
      PromiseInvokeOrNoop = _require.PromiseInvokeOrNoop,
      TransferArrayBuffer = _require.TransferArrayBuffer,
      ValidateAndNormalizeQueuingStrategy = _require.ValidateAndNormalizeQueuingStrategy,
      ValidateAndNormalizeHighWaterMark = _require.ValidateAndNormalizeHighWaterMark;

  var _require2 = __w_pdfjs_require__(0),
      createArrayFromList = _require2.createArrayFromList,
      createDataProperty = _require2.createDataProperty,
      typeIsObject = _require2.typeIsObject;

  var _require3 = __w_pdfjs_require__(1),
      assert = _require3.assert,
      rethrowAssertionErrorRejection = _require3.rethrowAssertionErrorRejection;

  var _require4 = __w_pdfjs_require__(3),
      DequeueValue = _require4.DequeueValue,
      EnqueueValueWithSize = _require4.EnqueueValueWithSize,
      ResetQueue = _require4.ResetQueue;

  var _require5 = __w_pdfjs_require__(2),
      AcquireWritableStreamDefaultWriter = _require5.AcquireWritableStreamDefaultWriter,
      IsWritableStream = _require5.IsWritableStream,
      IsWritableStreamLocked = _require5.IsWritableStreamLocked,
      WritableStreamAbort = _require5.WritableStreamAbort,
      WritableStreamDefaultWriterCloseWithErrorPropagation = _require5.WritableStreamDefaultWriterCloseWithErrorPropagation,
      WritableStreamDefaultWriterRelease = _require5.WritableStreamDefaultWriterRelease,
      WritableStreamDefaultWriterWrite = _require5.WritableStreamDefaultWriterWrite,
      WritableStreamCloseQueuedOrInFlight = _require5.WritableStreamCloseQueuedOrInFlight;

  var ReadableStream = function () {
    function ReadableStream() {
      var underlyingSource = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

      var _ref = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
          size = _ref.size,
          highWaterMark = _ref.highWaterMark;

      _classCallCheck(this, ReadableStream);

      this._state = 'readable';
      this._reader = undefined;
      this._storedError = undefined;
      this._disturbed = false;
      this._readableStreamController = undefined;
      var type = underlyingSource.type;
      var typeString = String(type);

      if (typeString === 'bytes') {
        if (highWaterMark === undefined) {
          highWaterMark = 0;
        }

        this._readableStreamController = new ReadableByteStreamController(this, underlyingSource, highWaterMark);
      } else if (type === undefined) {
        if (highWaterMark === undefined) {
          highWaterMark = 1;
        }

        this._readableStreamController = new ReadableStreamDefaultController(this, underlyingSource, size, highWaterMark);
      } else {
        throw new RangeError('Invalid type is specified');
      }
    }

    _createClass(ReadableStream, [{
      key: 'cancel',
      value: function cancel(reason) {
        if (IsReadableStream(this) === false) {
          return Promise.reject(streamBrandCheckException('cancel'));
        }

        if (IsReadableStreamLocked(this) === true) {
          return Promise.reject(new TypeError('Cannot cancel a stream that already has a reader'));
        }

        return ReadableStreamCancel(this, reason);
      }
    }, {
      key: 'getReader',
      value: function getReader() {
        var _ref2 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
            mode = _ref2.mode;

        if (IsReadableStream(this) === false) {
          throw streamBrandCheckException('getReader');
        }

        if (mode === undefined) {
          return AcquireReadableStreamDefaultReader(this);
        }

        mode = String(mode);

        if (mode === 'byob') {
          return AcquireReadableStreamBYOBReader(this);
        }

        throw new RangeError('Invalid mode is specified');
      }
    }, {
      key: 'pipeThrough',
      value: function pipeThrough(_ref3, options) {
        var writable = _ref3.writable,
            readable = _ref3.readable;
        var promise = this.pipeTo(writable, options);
        ifIsObjectAndHasAPromiseIsHandledInternalSlotSetPromiseIsHandledToTrue(promise);
        return readable;
      }
    }, {
      key: 'pipeTo',
      value: function pipeTo(dest) {
        var _this = this;

        var _ref4 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
            preventClose = _ref4.preventClose,
            preventAbort = _ref4.preventAbort,
            preventCancel = _ref4.preventCancel;

        if (IsReadableStream(this) === false) {
          return Promise.reject(streamBrandCheckException('pipeTo'));
        }

        if (IsWritableStream(dest) === false) {
          return Promise.reject(new TypeError('ReadableStream.prototype.pipeTo\'s first argument must be a WritableStream'));
        }

        preventClose = Boolean(preventClose);
        preventAbort = Boolean(preventAbort);
        preventCancel = Boolean(preventCancel);

        if (IsReadableStreamLocked(this) === true) {
          return Promise.reject(new TypeError('ReadableStream.prototype.pipeTo cannot be used on a locked ReadableStream'));
        }

        if (IsWritableStreamLocked(dest) === true) {
          return Promise.reject(new TypeError('ReadableStream.prototype.pipeTo cannot be used on a locked WritableStream'));
        }

        var reader = AcquireReadableStreamDefaultReader(this);
        var writer = AcquireWritableStreamDefaultWriter(dest);
        var shuttingDown = false;
        var currentWrite = Promise.resolve();
        return new Promise(function (resolve, reject) {
          function pipeLoop() {
            currentWrite = Promise.resolve();

            if (shuttingDown === true) {
              return Promise.resolve();
            }

            return writer._readyPromise.then(function () {
              return ReadableStreamDefaultReaderRead(reader).then(function (_ref5) {
                var value = _ref5.value,
                    done = _ref5.done;

                if (done === true) {
                  return;
                }

                currentWrite = WritableStreamDefaultWriterWrite(writer, value)["catch"](function () {});
              });
            }).then(pipeLoop);
          }

          isOrBecomesErrored(_this, reader._closedPromise, function (storedError) {
            if (preventAbort === false) {
              shutdownWithAction(function () {
                return WritableStreamAbort(dest, storedError);
              }, true, storedError);
            } else {
              shutdown(true, storedError);
            }
          });
          isOrBecomesErrored(dest, writer._closedPromise, function (storedError) {
            if (preventCancel === false) {
              shutdownWithAction(function () {
                return ReadableStreamCancel(_this, storedError);
              }, true, storedError);
            } else {
              shutdown(true, storedError);
            }
          });
          isOrBecomesClosed(_this, reader._closedPromise, function () {
            if (preventClose === false) {
              shutdownWithAction(function () {
                return WritableStreamDefaultWriterCloseWithErrorPropagation(writer);
              });
            } else {
              shutdown();
            }
          });

          if (WritableStreamCloseQueuedOrInFlight(dest) === true || dest._state === 'closed') {
            var destClosed = new TypeError('the destination writable stream closed before all data could be piped to it');

            if (preventCancel === false) {
              shutdownWithAction(function () {
                return ReadableStreamCancel(_this, destClosed);
              }, true, destClosed);
            } else {
              shutdown(true, destClosed);
            }
          }

          pipeLoop()["catch"](function (err) {
            currentWrite = Promise.resolve();
            rethrowAssertionErrorRejection(err);
          });

          function waitForWritesToFinish() {
            var oldCurrentWrite = currentWrite;
            return currentWrite.then(function () {
              return oldCurrentWrite !== currentWrite ? waitForWritesToFinish() : undefined;
            });
          }

          function isOrBecomesErrored(stream, promise, action) {
            if (stream._state === 'errored') {
              action(stream._storedError);
            } else {
              promise["catch"](action)["catch"](rethrowAssertionErrorRejection);
            }
          }

          function isOrBecomesClosed(stream, promise, action) {
            if (stream._state === 'closed') {
              action();
            } else {
              promise.then(action)["catch"](rethrowAssertionErrorRejection);
            }
          }

          function shutdownWithAction(action, originalIsError, originalError) {
            if (shuttingDown === true) {
              return;
            }

            shuttingDown = true;

            if (dest._state === 'writable' && WritableStreamCloseQueuedOrInFlight(dest) === false) {
              waitForWritesToFinish().then(doTheRest);
            } else {
              doTheRest();
            }

            function doTheRest() {
              action().then(function () {
                return finalize(originalIsError, originalError);
              }, function (newError) {
                return finalize(true, newError);
              })["catch"](rethrowAssertionErrorRejection);
            }
          }

          function shutdown(isError, error) {
            if (shuttingDown === true) {
              return;
            }

            shuttingDown = true;

            if (dest._state === 'writable' && WritableStreamCloseQueuedOrInFlight(dest) === false) {
              waitForWritesToFinish().then(function () {
                return finalize(isError, error);
              })["catch"](rethrowAssertionErrorRejection);
            } else {
              finalize(isError, error);
            }
          }

          function finalize(isError, error) {
            WritableStreamDefaultWriterRelease(writer);
            ReadableStreamReaderGenericRelease(reader);

            if (isError) {
              reject(error);
            } else {
              resolve(undefined);
            }
          }
        });
      }
    }, {
      key: 'tee',
      value: function tee() {
        if (IsReadableStream(this) === false) {
          throw streamBrandCheckException('tee');
        }

        var branches = ReadableStreamTee(this, false);
        return createArrayFromList(branches);
      }
    }, {
      key: 'locked',
      get: function get() {
        if (IsReadableStream(this) === false) {
          throw streamBrandCheckException('locked');
        }

        return IsReadableStreamLocked(this);
      }
    }]);

    return ReadableStream;
  }();

  module.exports = {
    ReadableStream: ReadableStream,
    IsReadableStreamDisturbed: IsReadableStreamDisturbed,
    ReadableStreamDefaultControllerClose: ReadableStreamDefaultControllerClose,
    ReadableStreamDefaultControllerEnqueue: ReadableStreamDefaultControllerEnqueue,
    ReadableStreamDefaultControllerError: ReadableStreamDefaultControllerError,
    ReadableStreamDefaultControllerGetDesiredSize: ReadableStreamDefaultControllerGetDesiredSize
  };

  function AcquireReadableStreamBYOBReader(stream) {
    return new ReadableStreamBYOBReader(stream);
  }

  function AcquireReadableStreamDefaultReader(stream) {
    return new ReadableStreamDefaultReader(stream);
  }

  function IsReadableStream(x) {
    if (!typeIsObject(x)) {
      return false;
    }

    if (!Object.prototype.hasOwnProperty.call(x, '_readableStreamController')) {
      return false;
    }

    return true;
  }

  function IsReadableStreamDisturbed(stream) {
    assert(IsReadableStream(stream) === true, 'IsReadableStreamDisturbed should only be used on known readable streams');
    return stream._disturbed;
  }

  function IsReadableStreamLocked(stream) {
    assert(IsReadableStream(stream) === true, 'IsReadableStreamLocked should only be used on known readable streams');

    if (stream._reader === undefined) {
      return false;
    }

    return true;
  }

  function ReadableStreamTee(stream, cloneForBranch2) {
    assert(IsReadableStream(stream) === true);
    assert(typeof cloneForBranch2 === 'boolean');
    var reader = AcquireReadableStreamDefaultReader(stream);
    var teeState = {
      closedOrErrored: false,
      canceled1: false,
      canceled2: false,
      reason1: undefined,
      reason2: undefined
    };
    teeState.promise = new Promise(function (resolve) {
      teeState._resolve = resolve;
    });
    var pull = create_ReadableStreamTeePullFunction();
    pull._reader = reader;
    pull._teeState = teeState;
    pull._cloneForBranch2 = cloneForBranch2;
    var cancel1 = create_ReadableStreamTeeBranch1CancelFunction();
    cancel1._stream = stream;
    cancel1._teeState = teeState;
    var cancel2 = create_ReadableStreamTeeBranch2CancelFunction();
    cancel2._stream = stream;
    cancel2._teeState = teeState;
    var underlyingSource1 = Object.create(Object.prototype);
    createDataProperty(underlyingSource1, 'pull', pull);
    createDataProperty(underlyingSource1, 'cancel', cancel1);
    var branch1Stream = new ReadableStream(underlyingSource1);
    var underlyingSource2 = Object.create(Object.prototype);
    createDataProperty(underlyingSource2, 'pull', pull);
    createDataProperty(underlyingSource2, 'cancel', cancel2);
    var branch2Stream = new ReadableStream(underlyingSource2);
    pull._branch1 = branch1Stream._readableStreamController;
    pull._branch2 = branch2Stream._readableStreamController;

    reader._closedPromise["catch"](function (r) {
      if (teeState.closedOrErrored === true) {
        return;
      }

      ReadableStreamDefaultControllerError(pull._branch1, r);
      ReadableStreamDefaultControllerError(pull._branch2, r);
      teeState.closedOrErrored = true;
    });

    return [branch1Stream, branch2Stream];
  }

  function create_ReadableStreamTeePullFunction() {
    function f() {
      var reader = f._reader,
          branch1 = f._branch1,
          branch2 = f._branch2,
          teeState = f._teeState;
      return ReadableStreamDefaultReaderRead(reader).then(function (result) {
        assert(typeIsObject(result));
        var value = result.value;
        var done = result.done;
        assert(typeof done === 'boolean');

        if (done === true && teeState.closedOrErrored === false) {
          if (teeState.canceled1 === false) {
            ReadableStreamDefaultControllerClose(branch1);
          }

          if (teeState.canceled2 === false) {
            ReadableStreamDefaultControllerClose(branch2);
          }

          teeState.closedOrErrored = true;
        }

        if (teeState.closedOrErrored === true) {
          return;
        }

        var value1 = value;
        var value2 = value;

        if (teeState.canceled1 === false) {
          ReadableStreamDefaultControllerEnqueue(branch1, value1);
        }

        if (teeState.canceled2 === false) {
          ReadableStreamDefaultControllerEnqueue(branch2, value2);
        }
      });
    }

    return f;
  }

  function create_ReadableStreamTeeBranch1CancelFunction() {
    function f(reason) {
      var stream = f._stream,
          teeState = f._teeState;
      teeState.canceled1 = true;
      teeState.reason1 = reason;

      if (teeState.canceled2 === true) {
        var compositeReason = createArrayFromList([teeState.reason1, teeState.reason2]);
        var cancelResult = ReadableStreamCancel(stream, compositeReason);

        teeState._resolve(cancelResult);
      }

      return teeState.promise;
    }

    return f;
  }

  function create_ReadableStreamTeeBranch2CancelFunction() {
    function f(reason) {
      var stream = f._stream,
          teeState = f._teeState;
      teeState.canceled2 = true;
      teeState.reason2 = reason;

      if (teeState.canceled1 === true) {
        var compositeReason = createArrayFromList([teeState.reason1, teeState.reason2]);
        var cancelResult = ReadableStreamCancel(stream, compositeReason);

        teeState._resolve(cancelResult);
      }

      return teeState.promise;
    }

    return f;
  }

  function ReadableStreamAddReadIntoRequest(stream) {
    assert(IsReadableStreamBYOBReader(stream._reader) === true);
    assert(stream._state === 'readable' || stream._state === 'closed');
    var promise = new Promise(function (resolve, reject) {
      var readIntoRequest = {
        _resolve: resolve,
        _reject: reject
      };

      stream._reader._readIntoRequests.push(readIntoRequest);
    });
    return promise;
  }

  function ReadableStreamAddReadRequest(stream) {
    assert(IsReadableStreamDefaultReader(stream._reader) === true);
    assert(stream._state === 'readable');
    var promise = new Promise(function (resolve, reject) {
      var readRequest = {
        _resolve: resolve,
        _reject: reject
      };

      stream._reader._readRequests.push(readRequest);
    });
    return promise;
  }

  function ReadableStreamCancel(stream, reason) {
    stream._disturbed = true;

    if (stream._state === 'closed') {
      return Promise.resolve(undefined);
    }

    if (stream._state === 'errored') {
      return Promise.reject(stream._storedError);
    }

    ReadableStreamClose(stream);

    var sourceCancelPromise = stream._readableStreamController.__cancelSteps(reason);

    return sourceCancelPromise.then(function () {
      return undefined;
    });
  }

  function ReadableStreamClose(stream) {
    assert(stream._state === 'readable');
    stream._state = 'closed';
    var reader = stream._reader;

    if (reader === undefined) {
      return undefined;
    }

    if (IsReadableStreamDefaultReader(reader) === true) {
      for (var i = 0; i < reader._readRequests.length; i++) {
        var _resolve = reader._readRequests[i]._resolve;

        _resolve(CreateIterResultObject(undefined, true));
      }

      reader._readRequests = [];
    }

    defaultReaderClosedPromiseResolve(reader);
    return undefined;
  }

  function ReadableStreamError(stream, e) {
    assert(IsReadableStream(stream) === true, 'stream must be ReadableStream');
    assert(stream._state === 'readable', 'state must be readable');
    stream._state = 'errored';
    stream._storedError = e;
    var reader = stream._reader;

    if (reader === undefined) {
      return undefined;
    }

    if (IsReadableStreamDefaultReader(reader) === true) {
      for (var i = 0; i < reader._readRequests.length; i++) {
        var readRequest = reader._readRequests[i];

        readRequest._reject(e);
      }

      reader._readRequests = [];
    } else {
      assert(IsReadableStreamBYOBReader(reader), 'reader must be ReadableStreamBYOBReader');

      for (var _i = 0; _i < reader._readIntoRequests.length; _i++) {
        var readIntoRequest = reader._readIntoRequests[_i];

        readIntoRequest._reject(e);
      }

      reader._readIntoRequests = [];
    }

    defaultReaderClosedPromiseReject(reader, e);

    reader._closedPromise["catch"](function () {});
  }

  function ReadableStreamFulfillReadIntoRequest(stream, chunk, done) {
    var reader = stream._reader;
    assert(reader._readIntoRequests.length > 0);

    var readIntoRequest = reader._readIntoRequests.shift();

    readIntoRequest._resolve(CreateIterResultObject(chunk, done));
  }

  function ReadableStreamFulfillReadRequest(stream, chunk, done) {
    var reader = stream._reader;
    assert(reader._readRequests.length > 0);

    var readRequest = reader._readRequests.shift();

    readRequest._resolve(CreateIterResultObject(chunk, done));
  }

  function ReadableStreamGetNumReadIntoRequests(stream) {
    return stream._reader._readIntoRequests.length;
  }

  function ReadableStreamGetNumReadRequests(stream) {
    return stream._reader._readRequests.length;
  }

  function ReadableStreamHasBYOBReader(stream) {
    var reader = stream._reader;

    if (reader === undefined) {
      return false;
    }

    if (IsReadableStreamBYOBReader(reader) === false) {
      return false;
    }

    return true;
  }

  function ReadableStreamHasDefaultReader(stream) {
    var reader = stream._reader;

    if (reader === undefined) {
      return false;
    }

    if (IsReadableStreamDefaultReader(reader) === false) {
      return false;
    }

    return true;
  }

  var ReadableStreamDefaultReader = function () {
    function ReadableStreamDefaultReader(stream) {
      _classCallCheck(this, ReadableStreamDefaultReader);

      if (IsReadableStream(stream) === false) {
        throw new TypeError('ReadableStreamDefaultReader can only be constructed with a ReadableStream instance');
      }

      if (IsReadableStreamLocked(stream) === true) {
        throw new TypeError('This stream has already been locked for exclusive reading by another reader');
      }

      ReadableStreamReaderGenericInitialize(this, stream);
      this._readRequests = [];
    }

    _createClass(ReadableStreamDefaultReader, [{
      key: 'cancel',
      value: function cancel(reason) {
        if (IsReadableStreamDefaultReader(this) === false) {
          return Promise.reject(defaultReaderBrandCheckException('cancel'));
        }

        if (this._ownerReadableStream === undefined) {
          return Promise.reject(readerLockException('cancel'));
        }

        return ReadableStreamReaderGenericCancel(this, reason);
      }
    }, {
      key: 'read',
      value: function read() {
        if (IsReadableStreamDefaultReader(this) === false) {
          return Promise.reject(defaultReaderBrandCheckException('read'));
        }

        if (this._ownerReadableStream === undefined) {
          return Promise.reject(readerLockException('read from'));
        }

        return ReadableStreamDefaultReaderRead(this);
      }
    }, {
      key: 'releaseLock',
      value: function releaseLock() {
        if (IsReadableStreamDefaultReader(this) === false) {
          throw defaultReaderBrandCheckException('releaseLock');
        }

        if (this._ownerReadableStream === undefined) {
          return;
        }

        if (this._readRequests.length > 0) {
          throw new TypeError('Tried to release a reader lock when that reader has pending read() calls un-settled');
        }

        ReadableStreamReaderGenericRelease(this);
      }
    }, {
      key: 'closed',
      get: function get() {
        if (IsReadableStreamDefaultReader(this) === false) {
          return Promise.reject(defaultReaderBrandCheckException('closed'));
        }

        return this._closedPromise;
      }
    }]);

    return ReadableStreamDefaultReader;
  }();

  var ReadableStreamBYOBReader = function () {
    function ReadableStreamBYOBReader(stream) {
      _classCallCheck(this, ReadableStreamBYOBReader);

      if (!IsReadableStream(stream)) {
        throw new TypeError('ReadableStreamBYOBReader can only be constructed with a ReadableStream instance given a ' + 'byte source');
      }

      if (IsReadableByteStreamController(stream._readableStreamController) === false) {
        throw new TypeError('Cannot construct a ReadableStreamBYOBReader for a stream not constructed with a byte ' + 'source');
      }

      if (IsReadableStreamLocked(stream)) {
        throw new TypeError('This stream has already been locked for exclusive reading by another reader');
      }

      ReadableStreamReaderGenericInitialize(this, stream);
      this._readIntoRequests = [];
    }

    _createClass(ReadableStreamBYOBReader, [{
      key: 'cancel',
      value: function cancel(reason) {
        if (!IsReadableStreamBYOBReader(this)) {
          return Promise.reject(byobReaderBrandCheckException('cancel'));
        }

        if (this._ownerReadableStream === undefined) {
          return Promise.reject(readerLockException('cancel'));
        }

        return ReadableStreamReaderGenericCancel(this, reason);
      }
    }, {
      key: 'read',
      value: function read(view) {
        if (!IsReadableStreamBYOBReader(this)) {
          return Promise.reject(byobReaderBrandCheckException('read'));
        }

        if (this._ownerReadableStream === undefined) {
          return Promise.reject(readerLockException('read from'));
        }

        if (!ArrayBuffer.isView(view)) {
          return Promise.reject(new TypeError('view must be an array buffer view'));
        }

        if (view.byteLength === 0) {
          return Promise.reject(new TypeError('view must have non-zero byteLength'));
        }

        return ReadableStreamBYOBReaderRead(this, view);
      }
    }, {
      key: 'releaseLock',
      value: function releaseLock() {
        if (!IsReadableStreamBYOBReader(this)) {
          throw byobReaderBrandCheckException('releaseLock');
        }

        if (this._ownerReadableStream === undefined) {
          return;
        }

        if (this._readIntoRequests.length > 0) {
          throw new TypeError('Tried to release a reader lock when that reader has pending read() calls un-settled');
        }

        ReadableStreamReaderGenericRelease(this);
      }
    }, {
      key: 'closed',
      get: function get() {
        if (!IsReadableStreamBYOBReader(this)) {
          return Promise.reject(byobReaderBrandCheckException('closed'));
        }

        return this._closedPromise;
      }
    }]);

    return ReadableStreamBYOBReader;
  }();

  function IsReadableStreamBYOBReader(x) {
    if (!typeIsObject(x)) {
      return false;
    }

    if (!Object.prototype.hasOwnProperty.call(x, '_readIntoRequests')) {
      return false;
    }

    return true;
  }

  function IsReadableStreamDefaultReader(x) {
    if (!typeIsObject(x)) {
      return false;
    }

    if (!Object.prototype.hasOwnProperty.call(x, '_readRequests')) {
      return false;
    }

    return true;
  }

  function ReadableStreamReaderGenericInitialize(reader, stream) {
    reader._ownerReadableStream = stream;
    stream._reader = reader;

    if (stream._state === 'readable') {
      defaultReaderClosedPromiseInitialize(reader);
    } else if (stream._state === 'closed') {
      defaultReaderClosedPromiseInitializeAsResolved(reader);
    } else {
      assert(stream._state === 'errored', 'state must be errored');
      defaultReaderClosedPromiseInitializeAsRejected(reader, stream._storedError);

      reader._closedPromise["catch"](function () {});
    }
  }

  function ReadableStreamReaderGenericCancel(reader, reason) {
    var stream = reader._ownerReadableStream;
    assert(stream !== undefined);
    return ReadableStreamCancel(stream, reason);
  }

  function ReadableStreamReaderGenericRelease(reader) {
    assert(reader._ownerReadableStream !== undefined);
    assert(reader._ownerReadableStream._reader === reader);

    if (reader._ownerReadableStream._state === 'readable') {
      defaultReaderClosedPromiseReject(reader, new TypeError('Reader was released and can no longer be used to monitor the stream\'s closedness'));
    } else {
      defaultReaderClosedPromiseResetToRejected(reader, new TypeError('Reader was released and can no longer be used to monitor the stream\'s closedness'));
    }

    reader._closedPromise["catch"](function () {});

    reader._ownerReadableStream._reader = undefined;
    reader._ownerReadableStream = undefined;
  }

  function ReadableStreamBYOBReaderRead(reader, view) {
    var stream = reader._ownerReadableStream;
    assert(stream !== undefined);
    stream._disturbed = true;

    if (stream._state === 'errored') {
      return Promise.reject(stream._storedError);
    }

    return ReadableByteStreamControllerPullInto(stream._readableStreamController, view);
  }

  function ReadableStreamDefaultReaderRead(reader) {
    var stream = reader._ownerReadableStream;
    assert(stream !== undefined);
    stream._disturbed = true;

    if (stream._state === 'closed') {
      return Promise.resolve(CreateIterResultObject(undefined, true));
    }

    if (stream._state === 'errored') {
      return Promise.reject(stream._storedError);
    }

    assert(stream._state === 'readable');
    return stream._readableStreamController.__pullSteps();
  }

  var ReadableStreamDefaultController = function () {
    function ReadableStreamDefaultController(stream, underlyingSource, size, highWaterMark) {
      _classCallCheck(this, ReadableStreamDefaultController);

      if (IsReadableStream(stream) === false) {
        throw new TypeError('ReadableStreamDefaultController can only be constructed with a ReadableStream instance');
      }

      if (stream._readableStreamController !== undefined) {
        throw new TypeError('ReadableStreamDefaultController instances can only be created by the ReadableStream constructor');
      }

      this._controlledReadableStream = stream;
      this._underlyingSource = underlyingSource;
      this._queue = undefined;
      this._queueTotalSize = undefined;
      ResetQueue(this);
      this._started = false;
      this._closeRequested = false;
      this._pullAgain = false;
      this._pulling = false;
      var normalizedStrategy = ValidateAndNormalizeQueuingStrategy(size, highWaterMark);
      this._strategySize = normalizedStrategy.size;
      this._strategyHWM = normalizedStrategy.highWaterMark;
      var controller = this;
      var startResult = InvokeOrNoop(underlyingSource, 'start', [this]);
      Promise.resolve(startResult).then(function () {
        controller._started = true;
        assert(controller._pulling === false);
        assert(controller._pullAgain === false);
        ReadableStreamDefaultControllerCallPullIfNeeded(controller);
      }, function (r) {
        ReadableStreamDefaultControllerErrorIfNeeded(controller, r);
      })["catch"](rethrowAssertionErrorRejection);
    }

    _createClass(ReadableStreamDefaultController, [{
      key: 'close',
      value: function close() {
        if (IsReadableStreamDefaultController(this) === false) {
          throw defaultControllerBrandCheckException('close');
        }

        if (this._closeRequested === true) {
          throw new TypeError('The stream has already been closed; do not close it again!');
        }

        var state = this._controlledReadableStream._state;

        if (state !== 'readable') {
          throw new TypeError('The stream (in ' + state + ' state) is not in the readable state and cannot be closed');
        }

        ReadableStreamDefaultControllerClose(this);
      }
    }, {
      key: 'enqueue',
      value: function enqueue(chunk) {
        if (IsReadableStreamDefaultController(this) === false) {
          throw defaultControllerBrandCheckException('enqueue');
        }

        if (this._closeRequested === true) {
          throw new TypeError('stream is closed or draining');
        }

        var state = this._controlledReadableStream._state;

        if (state !== 'readable') {
          throw new TypeError('The stream (in ' + state + ' state) is not in the readable state and cannot be enqueued to');
        }

        return ReadableStreamDefaultControllerEnqueue(this, chunk);
      }
    }, {
      key: 'error',
      value: function error(e) {
        if (IsReadableStreamDefaultController(this) === false) {
          throw defaultControllerBrandCheckException('error');
        }

        var stream = this._controlledReadableStream;

        if (stream._state !== 'readable') {
          throw new TypeError('The stream is ' + stream._state + ' and so cannot be errored');
        }

        ReadableStreamDefaultControllerError(this, e);
      }
    }, {
      key: '__cancelSteps',
      value: function __cancelSteps(reason) {
        ResetQueue(this);
        return PromiseInvokeOrNoop(this._underlyingSource, 'cancel', [reason]);
      }
    }, {
      key: '__pullSteps',
      value: function __pullSteps() {
        var stream = this._controlledReadableStream;

        if (this._queue.length > 0) {
          var chunk = DequeueValue(this);

          if (this._closeRequested === true && this._queue.length === 0) {
            ReadableStreamClose(stream);
          } else {
            ReadableStreamDefaultControllerCallPullIfNeeded(this);
          }

          return Promise.resolve(CreateIterResultObject(chunk, false));
        }

        var pendingPromise = ReadableStreamAddReadRequest(stream);
        ReadableStreamDefaultControllerCallPullIfNeeded(this);
        return pendingPromise;
      }
    }, {
      key: 'desiredSize',
      get: function get() {
        if (IsReadableStreamDefaultController(this) === false) {
          throw defaultControllerBrandCheckException('desiredSize');
        }

        return ReadableStreamDefaultControllerGetDesiredSize(this);
      }
    }]);

    return ReadableStreamDefaultController;
  }();

  function IsReadableStreamDefaultController(x) {
    if (!typeIsObject(x)) {
      return false;
    }

    if (!Object.prototype.hasOwnProperty.call(x, '_underlyingSource')) {
      return false;
    }

    return true;
  }

  function ReadableStreamDefaultControllerCallPullIfNeeded(controller) {
    var shouldPull = ReadableStreamDefaultControllerShouldCallPull(controller);

    if (shouldPull === false) {
      return undefined;
    }

    if (controller._pulling === true) {
      controller._pullAgain = true;
      return undefined;
    }

    assert(controller._pullAgain === false);
    controller._pulling = true;
    var pullPromise = PromiseInvokeOrNoop(controller._underlyingSource, 'pull', [controller]);
    pullPromise.then(function () {
      controller._pulling = false;

      if (controller._pullAgain === true) {
        controller._pullAgain = false;
        return ReadableStreamDefaultControllerCallPullIfNeeded(controller);
      }

      return undefined;
    }, function (e) {
      ReadableStreamDefaultControllerErrorIfNeeded(controller, e);
    })["catch"](rethrowAssertionErrorRejection);
    return undefined;
  }

  function ReadableStreamDefaultControllerShouldCallPull(controller) {
    var stream = controller._controlledReadableStream;

    if (stream._state === 'closed' || stream._state === 'errored') {
      return false;
    }

    if (controller._closeRequested === true) {
      return false;
    }

    if (controller._started === false) {
      return false;
    }

    if (IsReadableStreamLocked(stream) === true && ReadableStreamGetNumReadRequests(stream) > 0) {
      return true;
    }

    var desiredSize = ReadableStreamDefaultControllerGetDesiredSize(controller);

    if (desiredSize > 0) {
      return true;
    }

    return false;
  }

  function ReadableStreamDefaultControllerClose(controller) {
    var stream = controller._controlledReadableStream;
    assert(controller._closeRequested === false);
    assert(stream._state === 'readable');
    controller._closeRequested = true;

    if (controller._queue.length === 0) {
      ReadableStreamClose(stream);
    }
  }

  function ReadableStreamDefaultControllerEnqueue(controller, chunk) {
    var stream = controller._controlledReadableStream;
    assert(controller._closeRequested === false);
    assert(stream._state === 'readable');

    if (IsReadableStreamLocked(stream) === true && ReadableStreamGetNumReadRequests(stream) > 0) {
      ReadableStreamFulfillReadRequest(stream, chunk, false);
    } else {
      var chunkSize = 1;

      if (controller._strategySize !== undefined) {
        var strategySize = controller._strategySize;

        try {
          chunkSize = strategySize(chunk);
        } catch (chunkSizeE) {
          ReadableStreamDefaultControllerErrorIfNeeded(controller, chunkSizeE);
          throw chunkSizeE;
        }
      }

      try {
        EnqueueValueWithSize(controller, chunk, chunkSize);
      } catch (enqueueE) {
        ReadableStreamDefaultControllerErrorIfNeeded(controller, enqueueE);
        throw enqueueE;
      }
    }

    ReadableStreamDefaultControllerCallPullIfNeeded(controller);
    return undefined;
  }

  function ReadableStreamDefaultControllerError(controller, e) {
    var stream = controller._controlledReadableStream;
    assert(stream._state === 'readable');
    ResetQueue(controller);
    ReadableStreamError(stream, e);
  }

  function ReadableStreamDefaultControllerErrorIfNeeded(controller, e) {
    if (controller._controlledReadableStream._state === 'readable') {
      ReadableStreamDefaultControllerError(controller, e);
    }
  }

  function ReadableStreamDefaultControllerGetDesiredSize(controller) {
    var stream = controller._controlledReadableStream;
    var state = stream._state;

    if (state === 'errored') {
      return null;
    }

    if (state === 'closed') {
      return 0;
    }

    return controller._strategyHWM - controller._queueTotalSize;
  }

  var ReadableStreamBYOBRequest = function () {
    function ReadableStreamBYOBRequest(controller, view) {
      _classCallCheck(this, ReadableStreamBYOBRequest);

      this._associatedReadableByteStreamController = controller;
      this._view = view;
    }

    _createClass(ReadableStreamBYOBRequest, [{
      key: 'respond',
      value: function respond(bytesWritten) {
        if (IsReadableStreamBYOBRequest(this) === false) {
          throw byobRequestBrandCheckException('respond');
        }

        if (this._associatedReadableByteStreamController === undefined) {
          throw new TypeError('This BYOB request has been invalidated');
        }

        ReadableByteStreamControllerRespond(this._associatedReadableByteStreamController, bytesWritten);
      }
    }, {
      key: 'respondWithNewView',
      value: function respondWithNewView(view) {
        if (IsReadableStreamBYOBRequest(this) === false) {
          throw byobRequestBrandCheckException('respond');
        }

        if (this._associatedReadableByteStreamController === undefined) {
          throw new TypeError('This BYOB request has been invalidated');
        }

        if (!ArrayBuffer.isView(view)) {
          throw new TypeError('You can only respond with array buffer views');
        }

        ReadableByteStreamControllerRespondWithNewView(this._associatedReadableByteStreamController, view);
      }
    }, {
      key: 'view',
      get: function get() {
        return this._view;
      }
    }]);

    return ReadableStreamBYOBRequest;
  }();

  var ReadableByteStreamController = function () {
    function ReadableByteStreamController(stream, underlyingByteSource, highWaterMark) {
      _classCallCheck(this, ReadableByteStreamController);

      if (IsReadableStream(stream) === false) {
        throw new TypeError('ReadableByteStreamController can only be constructed with a ReadableStream instance given ' + 'a byte source');
      }

      if (stream._readableStreamController !== undefined) {
        throw new TypeError('ReadableByteStreamController instances can only be created by the ReadableStream constructor given a byte ' + 'source');
      }

      this._controlledReadableStream = stream;
      this._underlyingByteSource = underlyingByteSource;
      this._pullAgain = false;
      this._pulling = false;
      ReadableByteStreamControllerClearPendingPullIntos(this);
      this._queue = this._queueTotalSize = undefined;
      ResetQueue(this);
      this._closeRequested = false;
      this._started = false;
      this._strategyHWM = ValidateAndNormalizeHighWaterMark(highWaterMark);
      var autoAllocateChunkSize = underlyingByteSource.autoAllocateChunkSize;

      if (autoAllocateChunkSize !== undefined) {
        if (Number.isInteger(autoAllocateChunkSize) === false || autoAllocateChunkSize <= 0) {
          throw new RangeError('autoAllocateChunkSize must be a positive integer');
        }
      }

      this._autoAllocateChunkSize = autoAllocateChunkSize;
      this._pendingPullIntos = [];
      var controller = this;
      var startResult = InvokeOrNoop(underlyingByteSource, 'start', [this]);
      Promise.resolve(startResult).then(function () {
        controller._started = true;
        assert(controller._pulling === false);
        assert(controller._pullAgain === false);
        ReadableByteStreamControllerCallPullIfNeeded(controller);
      }, function (r) {
        if (stream._state === 'readable') {
          ReadableByteStreamControllerError(controller, r);
        }
      })["catch"](rethrowAssertionErrorRejection);
    }

    _createClass(ReadableByteStreamController, [{
      key: 'close',
      value: function close() {
        if (IsReadableByteStreamController(this) === false) {
          throw byteStreamControllerBrandCheckException('close');
        }

        if (this._closeRequested === true) {
          throw new TypeError('The stream has already been closed; do not close it again!');
        }

        var state = this._controlledReadableStream._state;

        if (state !== 'readable') {
          throw new TypeError('The stream (in ' + state + ' state) is not in the readable state and cannot be closed');
        }

        ReadableByteStreamControllerClose(this);
      }
    }, {
      key: 'enqueue',
      value: function enqueue(chunk) {
        if (IsReadableByteStreamController(this) === false) {
          throw byteStreamControllerBrandCheckException('enqueue');
        }

        if (this._closeRequested === true) {
          throw new TypeError('stream is closed or draining');
        }

        var state = this._controlledReadableStream._state;

        if (state !== 'readable') {
          throw new TypeError('The stream (in ' + state + ' state) is not in the readable state and cannot be enqueued to');
        }

        if (!ArrayBuffer.isView(chunk)) {
          throw new TypeError('You can only enqueue array buffer views when using a ReadableByteStreamController');
        }

        ReadableByteStreamControllerEnqueue(this, chunk);
      }
    }, {
      key: 'error',
      value: function error(e) {
        if (IsReadableByteStreamController(this) === false) {
          throw byteStreamControllerBrandCheckException('error');
        }

        var stream = this._controlledReadableStream;

        if (stream._state !== 'readable') {
          throw new TypeError('The stream is ' + stream._state + ' and so cannot be errored');
        }

        ReadableByteStreamControllerError(this, e);
      }
    }, {
      key: '__cancelSteps',
      value: function __cancelSteps(reason) {
        if (this._pendingPullIntos.length > 0) {
          var firstDescriptor = this._pendingPullIntos[0];
          firstDescriptor.bytesFilled = 0;
        }

        ResetQueue(this);
        return PromiseInvokeOrNoop(this._underlyingByteSource, 'cancel', [reason]);
      }
    }, {
      key: '__pullSteps',
      value: function __pullSteps() {
        var stream = this._controlledReadableStream;
        assert(ReadableStreamHasDefaultReader(stream) === true);

        if (this._queueTotalSize > 0) {
          assert(ReadableStreamGetNumReadRequests(stream) === 0);

          var entry = this._queue.shift();

          this._queueTotalSize -= entry.byteLength;
          ReadableByteStreamControllerHandleQueueDrain(this);
          var view = void 0;

          try {
            view = new Uint8Array(entry.buffer, entry.byteOffset, entry.byteLength);
          } catch (viewE) {
            return Promise.reject(viewE);
          }

          return Promise.resolve(CreateIterResultObject(view, false));
        }

        var autoAllocateChunkSize = this._autoAllocateChunkSize;

        if (autoAllocateChunkSize !== undefined) {
          var buffer = void 0;

          try {
            buffer = new ArrayBuffer(autoAllocateChunkSize);
          } catch (bufferE) {
            return Promise.reject(bufferE);
          }

          var pullIntoDescriptor = {
            buffer: buffer,
            byteOffset: 0,
            byteLength: autoAllocateChunkSize,
            bytesFilled: 0,
            elementSize: 1,
            ctor: Uint8Array,
            readerType: 'default'
          };

          this._pendingPullIntos.push(pullIntoDescriptor);
        }

        var promise = ReadableStreamAddReadRequest(stream);
        ReadableByteStreamControllerCallPullIfNeeded(this);
        return promise;
      }
    }, {
      key: 'byobRequest',
      get: function get() {
        if (IsReadableByteStreamController(this) === false) {
          throw byteStreamControllerBrandCheckException('byobRequest');
        }

        if (this._byobRequest === undefined && this._pendingPullIntos.length > 0) {
          var firstDescriptor = this._pendingPullIntos[0];
          var view = new Uint8Array(firstDescriptor.buffer, firstDescriptor.byteOffset + firstDescriptor.bytesFilled, firstDescriptor.byteLength - firstDescriptor.bytesFilled);
          this._byobRequest = new ReadableStreamBYOBRequest(this, view);
        }

        return this._byobRequest;
      }
    }, {
      key: 'desiredSize',
      get: function get() {
        if (IsReadableByteStreamController(this) === false) {
          throw byteStreamControllerBrandCheckException('desiredSize');
        }

        return ReadableByteStreamControllerGetDesiredSize(this);
      }
    }]);

    return ReadableByteStreamController;
  }();

  function IsReadableByteStreamController(x) {
    if (!typeIsObject(x)) {
      return false;
    }

    if (!Object.prototype.hasOwnProperty.call(x, '_underlyingByteSource')) {
      return false;
    }

    return true;
  }

  function IsReadableStreamBYOBRequest(x) {
    if (!typeIsObject(x)) {
      return false;
    }

    if (!Object.prototype.hasOwnProperty.call(x, '_associatedReadableByteStreamController')) {
      return false;
    }

    return true;
  }

  function ReadableByteStreamControllerCallPullIfNeeded(controller) {
    var shouldPull = ReadableByteStreamControllerShouldCallPull(controller);

    if (shouldPull === false) {
      return undefined;
    }

    if (controller._pulling === true) {
      controller._pullAgain = true;
      return undefined;
    }

    assert(controller._pullAgain === false);
    controller._pulling = true;
    var pullPromise = PromiseInvokeOrNoop(controller._underlyingByteSource, 'pull', [controller]);
    pullPromise.then(function () {
      controller._pulling = false;

      if (controller._pullAgain === true) {
        controller._pullAgain = false;
        ReadableByteStreamControllerCallPullIfNeeded(controller);
      }
    }, function (e) {
      if (controller._controlledReadableStream._state === 'readable') {
        ReadableByteStreamControllerError(controller, e);
      }
    })["catch"](rethrowAssertionErrorRejection);
    return undefined;
  }

  function ReadableByteStreamControllerClearPendingPullIntos(controller) {
    ReadableByteStreamControllerInvalidateBYOBRequest(controller);
    controller._pendingPullIntos = [];
  }

  function ReadableByteStreamControllerCommitPullIntoDescriptor(stream, pullIntoDescriptor) {
    assert(stream._state !== 'errored', 'state must not be errored');
    var done = false;

    if (stream._state === 'closed') {
      assert(pullIntoDescriptor.bytesFilled === 0);
      done = true;
    }

    var filledView = ReadableByteStreamControllerConvertPullIntoDescriptor(pullIntoDescriptor);

    if (pullIntoDescriptor.readerType === 'default') {
      ReadableStreamFulfillReadRequest(stream, filledView, done);
    } else {
      assert(pullIntoDescriptor.readerType === 'byob');
      ReadableStreamFulfillReadIntoRequest(stream, filledView, done);
    }
  }

  function ReadableByteStreamControllerConvertPullIntoDescriptor(pullIntoDescriptor) {
    var bytesFilled = pullIntoDescriptor.bytesFilled;
    var elementSize = pullIntoDescriptor.elementSize;
    assert(bytesFilled <= pullIntoDescriptor.byteLength);
    assert(bytesFilled % elementSize === 0);
    return new pullIntoDescriptor.ctor(pullIntoDescriptor.buffer, pullIntoDescriptor.byteOffset, bytesFilled / elementSize);
  }

  function ReadableByteStreamControllerEnqueueChunkToQueue(controller, buffer, byteOffset, byteLength) {
    controller._queue.push({
      buffer: buffer,
      byteOffset: byteOffset,
      byteLength: byteLength
    });

    controller._queueTotalSize += byteLength;
  }

  function ReadableByteStreamControllerFillPullIntoDescriptorFromQueue(controller, pullIntoDescriptor) {
    var elementSize = pullIntoDescriptor.elementSize;
    var currentAlignedBytes = pullIntoDescriptor.bytesFilled - pullIntoDescriptor.bytesFilled % elementSize;
    var maxBytesToCopy = Math.min(controller._queueTotalSize, pullIntoDescriptor.byteLength - pullIntoDescriptor.bytesFilled);
    var maxBytesFilled = pullIntoDescriptor.bytesFilled + maxBytesToCopy;
    var maxAlignedBytes = maxBytesFilled - maxBytesFilled % elementSize;
    var totalBytesToCopyRemaining = maxBytesToCopy;
    var ready = false;

    if (maxAlignedBytes > currentAlignedBytes) {
      totalBytesToCopyRemaining = maxAlignedBytes - pullIntoDescriptor.bytesFilled;
      ready = true;
    }

    var queue = controller._queue;

    while (totalBytesToCopyRemaining > 0) {
      var headOfQueue = queue[0];
      var bytesToCopy = Math.min(totalBytesToCopyRemaining, headOfQueue.byteLength);
      var destStart = pullIntoDescriptor.byteOffset + pullIntoDescriptor.bytesFilled;
      ArrayBufferCopy(pullIntoDescriptor.buffer, destStart, headOfQueue.buffer, headOfQueue.byteOffset, bytesToCopy);

      if (headOfQueue.byteLength === bytesToCopy) {
        queue.shift();
      } else {
        headOfQueue.byteOffset += bytesToCopy;
        headOfQueue.byteLength -= bytesToCopy;
      }

      controller._queueTotalSize -= bytesToCopy;
      ReadableByteStreamControllerFillHeadPullIntoDescriptor(controller, bytesToCopy, pullIntoDescriptor);
      totalBytesToCopyRemaining -= bytesToCopy;
    }

    if (ready === false) {
      assert(controller._queueTotalSize === 0, 'queue must be empty');
      assert(pullIntoDescriptor.bytesFilled > 0);
      assert(pullIntoDescriptor.bytesFilled < pullIntoDescriptor.elementSize);
    }

    return ready;
  }

  function ReadableByteStreamControllerFillHeadPullIntoDescriptor(controller, size, pullIntoDescriptor) {
    assert(controller._pendingPullIntos.length === 0 || controller._pendingPullIntos[0] === pullIntoDescriptor);
    ReadableByteStreamControllerInvalidateBYOBRequest(controller);
    pullIntoDescriptor.bytesFilled += size;
  }

  function ReadableByteStreamControllerHandleQueueDrain(controller) {
    assert(controller._controlledReadableStream._state === 'readable');

    if (controller._queueTotalSize === 0 && controller._closeRequested === true) {
      ReadableStreamClose(controller._controlledReadableStream);
    } else {
      ReadableByteStreamControllerCallPullIfNeeded(controller);
    }
  }

  function ReadableByteStreamControllerInvalidateBYOBRequest(controller) {
    if (controller._byobRequest === undefined) {
      return;
    }

    controller._byobRequest._associatedReadableByteStreamController = undefined;
    controller._byobRequest._view = undefined;
    controller._byobRequest = undefined;
  }

  function ReadableByteStreamControllerProcessPullIntoDescriptorsUsingQueue(controller) {
    assert(controller._closeRequested === false);

    while (controller._pendingPullIntos.length > 0) {
      if (controller._queueTotalSize === 0) {
        return;
      }

      var pullIntoDescriptor = controller._pendingPullIntos[0];

      if (ReadableByteStreamControllerFillPullIntoDescriptorFromQueue(controller, pullIntoDescriptor) === true) {
        ReadableByteStreamControllerShiftPendingPullInto(controller);
        ReadableByteStreamControllerCommitPullIntoDescriptor(controller._controlledReadableStream, pullIntoDescriptor);
      }
    }
  }

  function ReadableByteStreamControllerPullInto(controller, view) {
    var stream = controller._controlledReadableStream;
    var elementSize = 1;

    if (view.constructor !== DataView) {
      elementSize = view.constructor.BYTES_PER_ELEMENT;
    }

    var ctor = view.constructor;
    var pullIntoDescriptor = {
      buffer: view.buffer,
      byteOffset: view.byteOffset,
      byteLength: view.byteLength,
      bytesFilled: 0,
      elementSize: elementSize,
      ctor: ctor,
      readerType: 'byob'
    };

    if (controller._pendingPullIntos.length > 0) {
      pullIntoDescriptor.buffer = TransferArrayBuffer(pullIntoDescriptor.buffer);

      controller._pendingPullIntos.push(pullIntoDescriptor);

      return ReadableStreamAddReadIntoRequest(stream);
    }

    if (stream._state === 'closed') {
      var emptyView = new view.constructor(pullIntoDescriptor.buffer, pullIntoDescriptor.byteOffset, 0);
      return Promise.resolve(CreateIterResultObject(emptyView, true));
    }

    if (controller._queueTotalSize > 0) {
      if (ReadableByteStreamControllerFillPullIntoDescriptorFromQueue(controller, pullIntoDescriptor) === true) {
        var filledView = ReadableByteStreamControllerConvertPullIntoDescriptor(pullIntoDescriptor);
        ReadableByteStreamControllerHandleQueueDrain(controller);
        return Promise.resolve(CreateIterResultObject(filledView, false));
      }

      if (controller._closeRequested === true) {
        var e = new TypeError('Insufficient bytes to fill elements in the given buffer');
        ReadableByteStreamControllerError(controller, e);
        return Promise.reject(e);
      }
    }

    pullIntoDescriptor.buffer = TransferArrayBuffer(pullIntoDescriptor.buffer);

    controller._pendingPullIntos.push(pullIntoDescriptor);

    var promise = ReadableStreamAddReadIntoRequest(stream);
    ReadableByteStreamControllerCallPullIfNeeded(controller);
    return promise;
  }

  function ReadableByteStreamControllerRespondInClosedState(controller, firstDescriptor) {
    firstDescriptor.buffer = TransferArrayBuffer(firstDescriptor.buffer);
    assert(firstDescriptor.bytesFilled === 0, 'bytesFilled must be 0');
    var stream = controller._controlledReadableStream;

    if (ReadableStreamHasBYOBReader(stream) === true) {
      while (ReadableStreamGetNumReadIntoRequests(stream) > 0) {
        var pullIntoDescriptor = ReadableByteStreamControllerShiftPendingPullInto(controller);
        ReadableByteStreamControllerCommitPullIntoDescriptor(stream, pullIntoDescriptor);
      }
    }
  }

  function ReadableByteStreamControllerRespondInReadableState(controller, bytesWritten, pullIntoDescriptor) {
    if (pullIntoDescriptor.bytesFilled + bytesWritten > pullIntoDescriptor.byteLength) {
      throw new RangeError('bytesWritten out of range');
    }

    ReadableByteStreamControllerFillHeadPullIntoDescriptor(controller, bytesWritten, pullIntoDescriptor);

    if (pullIntoDescriptor.bytesFilled < pullIntoDescriptor.elementSize) {
      return;
    }

    ReadableByteStreamControllerShiftPendingPullInto(controller);
    var remainderSize = pullIntoDescriptor.bytesFilled % pullIntoDescriptor.elementSize;

    if (remainderSize > 0) {
      var end = pullIntoDescriptor.byteOffset + pullIntoDescriptor.bytesFilled;
      var remainder = pullIntoDescriptor.buffer.slice(end - remainderSize, end);
      ReadableByteStreamControllerEnqueueChunkToQueue(controller, remainder, 0, remainder.byteLength);
    }

    pullIntoDescriptor.buffer = TransferArrayBuffer(pullIntoDescriptor.buffer);
    pullIntoDescriptor.bytesFilled -= remainderSize;
    ReadableByteStreamControllerCommitPullIntoDescriptor(controller._controlledReadableStream, pullIntoDescriptor);
    ReadableByteStreamControllerProcessPullIntoDescriptorsUsingQueue(controller);
  }

  function ReadableByteStreamControllerRespondInternal(controller, bytesWritten) {
    var firstDescriptor = controller._pendingPullIntos[0];
    var stream = controller._controlledReadableStream;

    if (stream._state === 'closed') {
      if (bytesWritten !== 0) {
        throw new TypeError('bytesWritten must be 0 when calling respond() on a closed stream');
      }

      ReadableByteStreamControllerRespondInClosedState(controller, firstDescriptor);
    } else {
      assert(stream._state === 'readable');
      ReadableByteStreamControllerRespondInReadableState(controller, bytesWritten, firstDescriptor);
    }
  }

  function ReadableByteStreamControllerShiftPendingPullInto(controller) {
    var descriptor = controller._pendingPullIntos.shift();

    ReadableByteStreamControllerInvalidateBYOBRequest(controller);
    return descriptor;
  }

  function ReadableByteStreamControllerShouldCallPull(controller) {
    var stream = controller._controlledReadableStream;

    if (stream._state !== 'readable') {
      return false;
    }

    if (controller._closeRequested === true) {
      return false;
    }

    if (controller._started === false) {
      return false;
    }

    if (ReadableStreamHasDefaultReader(stream) === true && ReadableStreamGetNumReadRequests(stream) > 0) {
      return true;
    }

    if (ReadableStreamHasBYOBReader(stream) === true && ReadableStreamGetNumReadIntoRequests(stream) > 0) {
      return true;
    }

    if (ReadableByteStreamControllerGetDesiredSize(controller) > 0) {
      return true;
    }

    return false;
  }

  function ReadableByteStreamControllerClose(controller) {
    var stream = controller._controlledReadableStream;
    assert(controller._closeRequested === false);
    assert(stream._state === 'readable');

    if (controller._queueTotalSize > 0) {
      controller._closeRequested = true;
      return;
    }

    if (controller._pendingPullIntos.length > 0) {
      var firstPendingPullInto = controller._pendingPullIntos[0];

      if (firstPendingPullInto.bytesFilled > 0) {
        var e = new TypeError('Insufficient bytes to fill elements in the given buffer');
        ReadableByteStreamControllerError(controller, e);
        throw e;
      }
    }

    ReadableStreamClose(stream);
  }

  function ReadableByteStreamControllerEnqueue(controller, chunk) {
    var stream = controller._controlledReadableStream;
    assert(controller._closeRequested === false);
    assert(stream._state === 'readable');
    var buffer = chunk.buffer;
    var byteOffset = chunk.byteOffset;
    var byteLength = chunk.byteLength;
    var transferredBuffer = TransferArrayBuffer(buffer);

    if (ReadableStreamHasDefaultReader(stream) === true) {
      if (ReadableStreamGetNumReadRequests(stream) === 0) {
        ReadableByteStreamControllerEnqueueChunkToQueue(controller, transferredBuffer, byteOffset, byteLength);
      } else {
        assert(controller._queue.length === 0);
        var transferredView = new Uint8Array(transferredBuffer, byteOffset, byteLength);
        ReadableStreamFulfillReadRequest(stream, transferredView, false);
      }
    } else if (ReadableStreamHasBYOBReader(stream) === true) {
      ReadableByteStreamControllerEnqueueChunkToQueue(controller, transferredBuffer, byteOffset, byteLength);
      ReadableByteStreamControllerProcessPullIntoDescriptorsUsingQueue(controller);
    } else {
      assert(IsReadableStreamLocked(stream) === false, 'stream must not be locked');
      ReadableByteStreamControllerEnqueueChunkToQueue(controller, transferredBuffer, byteOffset, byteLength);
    }
  }

  function ReadableByteStreamControllerError(controller, e) {
    var stream = controller._controlledReadableStream;
    assert(stream._state === 'readable');
    ReadableByteStreamControllerClearPendingPullIntos(controller);
    ResetQueue(controller);
    ReadableStreamError(stream, e);
  }

  function ReadableByteStreamControllerGetDesiredSize(controller) {
    var stream = controller._controlledReadableStream;
    var state = stream._state;

    if (state === 'errored') {
      return null;
    }

    if (state === 'closed') {
      return 0;
    }

    return controller._strategyHWM - controller._queueTotalSize;
  }

  function ReadableByteStreamControllerRespond(controller, bytesWritten) {
    bytesWritten = Number(bytesWritten);

    if (IsFiniteNonNegativeNumber(bytesWritten) === false) {
      throw new RangeError('bytesWritten must be a finite');
    }

    assert(controller._pendingPullIntos.length > 0);
    ReadableByteStreamControllerRespondInternal(controller, bytesWritten);
  }

  function ReadableByteStreamControllerRespondWithNewView(controller, view) {
    assert(controller._pendingPullIntos.length > 0);
    var firstDescriptor = controller._pendingPullIntos[0];

    if (firstDescriptor.byteOffset + firstDescriptor.bytesFilled !== view.byteOffset) {
      throw new RangeError('The region specified by view does not match byobRequest');
    }

    if (firstDescriptor.byteLength !== view.byteLength) {
      throw new RangeError('The buffer of view has different capacity than byobRequest');
    }

    firstDescriptor.buffer = view.buffer;
    ReadableByteStreamControllerRespondInternal(controller, view.byteLength);
  }

  function streamBrandCheckException(name) {
    return new TypeError('ReadableStream.prototype.' + name + ' can only be used on a ReadableStream');
  }

  function readerLockException(name) {
    return new TypeError('Cannot ' + name + ' a stream using a released reader');
  }

  function defaultReaderBrandCheckException(name) {
    return new TypeError('ReadableStreamDefaultReader.prototype.' + name + ' can only be used on a ReadableStreamDefaultReader');
  }

  function defaultReaderClosedPromiseInitialize(reader) {
    reader._closedPromise = new Promise(function (resolve, reject) {
      reader._closedPromise_resolve = resolve;
      reader._closedPromise_reject = reject;
    });
  }

  function defaultReaderClosedPromiseInitializeAsRejected(reader, reason) {
    reader._closedPromise = Promise.reject(reason);
    reader._closedPromise_resolve = undefined;
    reader._closedPromise_reject = undefined;
  }

  function defaultReaderClosedPromiseInitializeAsResolved(reader) {
    reader._closedPromise = Promise.resolve(undefined);
    reader._closedPromise_resolve = undefined;
    reader._closedPromise_reject = undefined;
  }

  function defaultReaderClosedPromiseReject(reader, reason) {
    assert(reader._closedPromise_resolve !== undefined);
    assert(reader._closedPromise_reject !== undefined);

    reader._closedPromise_reject(reason);

    reader._closedPromise_resolve = undefined;
    reader._closedPromise_reject = undefined;
  }

  function defaultReaderClosedPromiseResetToRejected(reader, reason) {
    assert(reader._closedPromise_resolve === undefined);
    assert(reader._closedPromise_reject === undefined);
    reader._closedPromise = Promise.reject(reason);
  }

  function defaultReaderClosedPromiseResolve(reader) {
    assert(reader._closedPromise_resolve !== undefined);
    assert(reader._closedPromise_reject !== undefined);

    reader._closedPromise_resolve(undefined);

    reader._closedPromise_resolve = undefined;
    reader._closedPromise_reject = undefined;
  }

  function byobReaderBrandCheckException(name) {
    return new TypeError('ReadableStreamBYOBReader.prototype.' + name + ' can only be used on a ReadableStreamBYOBReader');
  }

  function defaultControllerBrandCheckException(name) {
    return new TypeError('ReadableStreamDefaultController.prototype.' + name + ' can only be used on a ReadableStreamDefaultController');
  }

  function byobRequestBrandCheckException(name) {
    return new TypeError('ReadableStreamBYOBRequest.prototype.' + name + ' can only be used on a ReadableStreamBYOBRequest');
  }

  function byteStreamControllerBrandCheckException(name) {
    return new TypeError('ReadableByteStreamController.prototype.' + name + ' can only be used on a ReadableByteStreamController');
  }

  function ifIsObjectAndHasAPromiseIsHandledInternalSlotSetPromiseIsHandledToTrue(promise) {
    try {
      Promise.prototype.then.call(promise, undefined, function () {});
    } catch (e) {}
  }
}, function (module, exports, __w_pdfjs_require__) {
  "use strict";

  var transformStream = __w_pdfjs_require__(6);

  var readableStream = __w_pdfjs_require__(4);

  var writableStream = __w_pdfjs_require__(2);

  exports.TransformStream = transformStream.TransformStream;
  exports.ReadableStream = readableStream.ReadableStream;
  exports.IsReadableStreamDisturbed = readableStream.IsReadableStreamDisturbed;
  exports.ReadableStreamDefaultControllerClose = readableStream.ReadableStreamDefaultControllerClose;
  exports.ReadableStreamDefaultControllerEnqueue = readableStream.ReadableStreamDefaultControllerEnqueue;
  exports.ReadableStreamDefaultControllerError = readableStream.ReadableStreamDefaultControllerError;
  exports.ReadableStreamDefaultControllerGetDesiredSize = readableStream.ReadableStreamDefaultControllerGetDesiredSize;
  exports.AcquireWritableStreamDefaultWriter = writableStream.AcquireWritableStreamDefaultWriter;
  exports.IsWritableStream = writableStream.IsWritableStream;
  exports.IsWritableStreamLocked = writableStream.IsWritableStreamLocked;
  exports.WritableStream = writableStream.WritableStream;
  exports.WritableStreamAbort = writableStream.WritableStreamAbort;
  exports.WritableStreamDefaultControllerError = writableStream.WritableStreamDefaultControllerError;
  exports.WritableStreamDefaultWriterCloseWithErrorPropagation = writableStream.WritableStreamDefaultWriterCloseWithErrorPropagation;
  exports.WritableStreamDefaultWriterRelease = writableStream.WritableStreamDefaultWriterRelease;
  exports.WritableStreamDefaultWriterWrite = writableStream.WritableStreamDefaultWriterWrite;
}, function (module, exports, __w_pdfjs_require__) {
  "use strict";

  var _createClass = function () {
    function defineProperties(target, props) {
      for (var i = 0; i < props.length; i++) {
        var descriptor = props[i];
        descriptor.enumerable = descriptor.enumerable || false;
        descriptor.configurable = true;
        if ("value" in descriptor) descriptor.writable = true;
        Object.defineProperty(target, descriptor.key, descriptor);
      }
    }

    return function (Constructor, protoProps, staticProps) {
      if (protoProps) defineProperties(Constructor.prototype, protoProps);
      if (staticProps) defineProperties(Constructor, staticProps);
      return Constructor;
    };
  }();

  function _classCallCheck(instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a function");
    }
  }

  var _require = __w_pdfjs_require__(1),
      assert = _require.assert;

  var _require2 = __w_pdfjs_require__(0),
      InvokeOrNoop = _require2.InvokeOrNoop,
      PromiseInvokeOrPerformFallback = _require2.PromiseInvokeOrPerformFallback,
      PromiseInvokeOrNoop = _require2.PromiseInvokeOrNoop,
      typeIsObject = _require2.typeIsObject;

  var _require3 = __w_pdfjs_require__(4),
      ReadableStream = _require3.ReadableStream,
      ReadableStreamDefaultControllerClose = _require3.ReadableStreamDefaultControllerClose,
      ReadableStreamDefaultControllerEnqueue = _require3.ReadableStreamDefaultControllerEnqueue,
      ReadableStreamDefaultControllerError = _require3.ReadableStreamDefaultControllerError,
      ReadableStreamDefaultControllerGetDesiredSize = _require3.ReadableStreamDefaultControllerGetDesiredSize;

  var _require4 = __w_pdfjs_require__(2),
      WritableStream = _require4.WritableStream,
      WritableStreamDefaultControllerError = _require4.WritableStreamDefaultControllerError;

  function TransformStreamCloseReadable(transformStream) {
    if (transformStream._errored === true) {
      throw new TypeError('TransformStream is already errored');
    }

    if (transformStream._readableClosed === true) {
      throw new TypeError('Readable side is already closed');
    }

    TransformStreamCloseReadableInternal(transformStream);
  }

  function TransformStreamEnqueueToReadable(transformStream, chunk) {
    if (transformStream._errored === true) {
      throw new TypeError('TransformStream is already errored');
    }

    if (transformStream._readableClosed === true) {
      throw new TypeError('Readable side is already closed');
    }

    var controller = transformStream._readableController;

    try {
      ReadableStreamDefaultControllerEnqueue(controller, chunk);
    } catch (e) {
      transformStream._readableClosed = true;
      TransformStreamErrorIfNeeded(transformStream, e);
      throw transformStream._storedError;
    }

    var desiredSize = ReadableStreamDefaultControllerGetDesiredSize(controller);
    var maybeBackpressure = desiredSize <= 0;

    if (maybeBackpressure === true && transformStream._backpressure === false) {
      TransformStreamSetBackpressure(transformStream, true);
    }
  }

  function TransformStreamError(transformStream, e) {
    if (transformStream._errored === true) {
      throw new TypeError('TransformStream is already errored');
    }

    TransformStreamErrorInternal(transformStream, e);
  }

  function TransformStreamCloseReadableInternal(transformStream) {
    assert(transformStream._errored === false);
    assert(transformStream._readableClosed === false);

    try {
      ReadableStreamDefaultControllerClose(transformStream._readableController);
    } catch (e) {
      assert(false);
    }

    transformStream._readableClosed = true;
  }

  function TransformStreamErrorIfNeeded(transformStream, e) {
    if (transformStream._errored === false) {
      TransformStreamErrorInternal(transformStream, e);
    }
  }

  function TransformStreamErrorInternal(transformStream, e) {
    assert(transformStream._errored === false);
    transformStream._errored = true;
    transformStream._storedError = e;

    if (transformStream._writableDone === false) {
      WritableStreamDefaultControllerError(transformStream._writableController, e);
    }

    if (transformStream._readableClosed === false) {
      ReadableStreamDefaultControllerError(transformStream._readableController, e);
    }
  }

  function TransformStreamReadableReadyPromise(transformStream) {
    assert(transformStream._backpressureChangePromise !== undefined, '_backpressureChangePromise should have been initialized');

    if (transformStream._backpressure === false) {
      return Promise.resolve();
    }

    assert(transformStream._backpressure === true, '_backpressure should have been initialized');
    return transformStream._backpressureChangePromise;
  }

  function TransformStreamSetBackpressure(transformStream, backpressure) {
    assert(transformStream._backpressure !== backpressure, 'TransformStreamSetBackpressure() should be called only when backpressure is changed');

    if (transformStream._backpressureChangePromise !== undefined) {
      transformStream._backpressureChangePromise_resolve(backpressure);
    }

    transformStream._backpressureChangePromise = new Promise(function (resolve) {
      transformStream._backpressureChangePromise_resolve = resolve;
    });

    transformStream._backpressureChangePromise.then(function (resolution) {
      assert(resolution !== backpressure, '_backpressureChangePromise should be fulfilled only when backpressure is changed');
    });

    transformStream._backpressure = backpressure;
  }

  function TransformStreamDefaultTransform(chunk, transformStreamController) {
    var transformStream = transformStreamController._controlledTransformStream;
    TransformStreamEnqueueToReadable(transformStream, chunk);
    return Promise.resolve();
  }

  function TransformStreamTransform(transformStream, chunk) {
    assert(transformStream._errored === false);
    assert(transformStream._transforming === false);
    assert(transformStream._backpressure === false);
    transformStream._transforming = true;
    var transformer = transformStream._transformer;
    var controller = transformStream._transformStreamController;
    var transformPromise = PromiseInvokeOrPerformFallback(transformer, 'transform', [chunk, controller], TransformStreamDefaultTransform, [chunk, controller]);
    return transformPromise.then(function () {
      transformStream._transforming = false;
      return TransformStreamReadableReadyPromise(transformStream);
    }, function (e) {
      TransformStreamErrorIfNeeded(transformStream, e);
      return Promise.reject(e);
    });
  }

  function IsTransformStreamDefaultController(x) {
    if (!typeIsObject(x)) {
      return false;
    }

    if (!Object.prototype.hasOwnProperty.call(x, '_controlledTransformStream')) {
      return false;
    }

    return true;
  }

  function IsTransformStream(x) {
    if (!typeIsObject(x)) {
      return false;
    }

    if (!Object.prototype.hasOwnProperty.call(x, '_transformStreamController')) {
      return false;
    }

    return true;
  }

  var TransformStreamSink = function () {
    function TransformStreamSink(transformStream, startPromise) {
      _classCallCheck(this, TransformStreamSink);

      this._transformStream = transformStream;
      this._startPromise = startPromise;
    }

    _createClass(TransformStreamSink, [{
      key: 'start',
      value: function start(c) {
        var transformStream = this._transformStream;
        transformStream._writableController = c;
        return this._startPromise.then(function () {
          return TransformStreamReadableReadyPromise(transformStream);
        });
      }
    }, {
      key: 'write',
      value: function write(chunk) {
        var transformStream = this._transformStream;
        return TransformStreamTransform(transformStream, chunk);
      }
    }, {
      key: 'abort',
      value: function abort() {
        var transformStream = this._transformStream;
        transformStream._writableDone = true;
        TransformStreamErrorInternal(transformStream, new TypeError('Writable side aborted'));
      }
    }, {
      key: 'close',
      value: function close() {
        var transformStream = this._transformStream;
        assert(transformStream._transforming === false);
        transformStream._writableDone = true;
        var flushPromise = PromiseInvokeOrNoop(transformStream._transformer, 'flush', [transformStream._transformStreamController]);
        return flushPromise.then(function () {
          if (transformStream._errored === true) {
            return Promise.reject(transformStream._storedError);
          }

          if (transformStream._readableClosed === false) {
            TransformStreamCloseReadableInternal(transformStream);
          }

          return Promise.resolve();
        })["catch"](function (r) {
          TransformStreamErrorIfNeeded(transformStream, r);
          return Promise.reject(transformStream._storedError);
        });
      }
    }]);

    return TransformStreamSink;
  }();

  var TransformStreamSource = function () {
    function TransformStreamSource(transformStream, startPromise) {
      _classCallCheck(this, TransformStreamSource);

      this._transformStream = transformStream;
      this._startPromise = startPromise;
    }

    _createClass(TransformStreamSource, [{
      key: 'start',
      value: function start(c) {
        var transformStream = this._transformStream;
        transformStream._readableController = c;
        return this._startPromise.then(function () {
          assert(transformStream._backpressureChangePromise !== undefined, '_backpressureChangePromise should have been initialized');

          if (transformStream._backpressure === true) {
            return Promise.resolve();
          }

          assert(transformStream._backpressure === false, '_backpressure should have been initialized');
          return transformStream._backpressureChangePromise;
        });
      }
    }, {
      key: 'pull',
      value: function pull() {
        var transformStream = this._transformStream;
        assert(transformStream._backpressure === true, 'pull() should be never called while _backpressure is false');
        assert(transformStream._backpressureChangePromise !== undefined, '_backpressureChangePromise should have been initialized');
        TransformStreamSetBackpressure(transformStream, false);
        return transformStream._backpressureChangePromise;
      }
    }, {
      key: 'cancel',
      value: function cancel() {
        var transformStream = this._transformStream;
        transformStream._readableClosed = true;
        TransformStreamErrorInternal(transformStream, new TypeError('Readable side canceled'));
      }
    }]);

    return TransformStreamSource;
  }();

  var TransformStreamDefaultController = function () {
    function TransformStreamDefaultController(transformStream) {
      _classCallCheck(this, TransformStreamDefaultController);

      if (IsTransformStream(transformStream) === false) {
        throw new TypeError('TransformStreamDefaultController can only be ' + 'constructed with a TransformStream instance');
      }

      if (transformStream._transformStreamController !== undefined) {
        throw new TypeError('TransformStreamDefaultController instances can ' + 'only be created by the TransformStream constructor');
      }

      this._controlledTransformStream = transformStream;
    }

    _createClass(TransformStreamDefaultController, [{
      key: 'enqueue',
      value: function enqueue(chunk) {
        if (IsTransformStreamDefaultController(this) === false) {
          throw defaultControllerBrandCheckException('enqueue');
        }

        TransformStreamEnqueueToReadable(this._controlledTransformStream, chunk);
      }
    }, {
      key: 'close',
      value: function close() {
        if (IsTransformStreamDefaultController(this) === false) {
          throw defaultControllerBrandCheckException('close');
        }

        TransformStreamCloseReadable(this._controlledTransformStream);
      }
    }, {
      key: 'error',
      value: function error(reason) {
        if (IsTransformStreamDefaultController(this) === false) {
          throw defaultControllerBrandCheckException('error');
        }

        TransformStreamError(this._controlledTransformStream, reason);
      }
    }, {
      key: 'desiredSize',
      get: function get() {
        if (IsTransformStreamDefaultController(this) === false) {
          throw defaultControllerBrandCheckException('desiredSize');
        }

        var transformStream = this._controlledTransformStream;
        var readableController = transformStream._readableController;
        return ReadableStreamDefaultControllerGetDesiredSize(readableController);
      }
    }]);

    return TransformStreamDefaultController;
  }();

  var TransformStream = function () {
    function TransformStream() {
      var transformer = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

      _classCallCheck(this, TransformStream);

      this._transformer = transformer;
      var readableStrategy = transformer.readableStrategy,
          writableStrategy = transformer.writableStrategy;
      this._transforming = false;
      this._errored = false;
      this._storedError = undefined;
      this._writableController = undefined;
      this._readableController = undefined;
      this._transformStreamController = undefined;
      this._writableDone = false;
      this._readableClosed = false;
      this._backpressure = undefined;
      this._backpressureChangePromise = undefined;
      this._backpressureChangePromise_resolve = undefined;
      this._transformStreamController = new TransformStreamDefaultController(this);
      var startPromise_resolve = void 0;
      var startPromise = new Promise(function (resolve) {
        startPromise_resolve = resolve;
      });
      var source = new TransformStreamSource(this, startPromise);
      this._readable = new ReadableStream(source, readableStrategy);
      var sink = new TransformStreamSink(this, startPromise);
      this._writable = new WritableStream(sink, writableStrategy);
      assert(this._writableController !== undefined);
      assert(this._readableController !== undefined);
      var desiredSize = ReadableStreamDefaultControllerGetDesiredSize(this._readableController);
      TransformStreamSetBackpressure(this, desiredSize <= 0);
      var transformStream = this;
      var startResult = InvokeOrNoop(transformer, 'start', [transformStream._transformStreamController]);
      startPromise_resolve(startResult);
      startPromise["catch"](function (e) {
        if (transformStream._errored === false) {
          transformStream._errored = true;
          transformStream._storedError = e;
        }
      });
    }

    _createClass(TransformStream, [{
      key: 'readable',
      get: function get() {
        if (IsTransformStream(this) === false) {
          throw streamBrandCheckException('readable');
        }

        return this._readable;
      }
    }, {
      key: 'writable',
      get: function get() {
        if (IsTransformStream(this) === false) {
          throw streamBrandCheckException('writable');
        }

        return this._writable;
      }
    }]);

    return TransformStream;
  }();

  module.exports = {
    TransformStream: TransformStream
  };

  function defaultControllerBrandCheckException(name) {
    return new TypeError('TransformStreamDefaultController.prototype.' + name + ' can only be used on a TransformStreamDefaultController');
  }

  function streamBrandCheckException(name) {
    return new TypeError('TransformStream.prototype.' + name + ' can only be used on a TransformStream');
  }
}, function (module, exports, __w_pdfjs_require__) {
  module.exports = __w_pdfjs_require__(5);
}]));

/***/ }),
/* 145 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

{
  var isURLSupported = false;

  try {
    if (typeof URL === 'function' && _typeof(URL.prototype) === 'object' && 'origin' in URL.prototype) {
      var u = new URL('b', 'http://a');
      u.pathname = 'c%20d';
      isURLSupported = u.href === 'http://a/c%20d';
    }
  } catch (ex) {}

  if (isURLSupported) {
    exports.URL = URL;
  } else {
    var PolyfillURL = __w_pdfjs_require__(146).URL;

    var OriginalURL = __w_pdfjs_require__(3).URL;

    if (OriginalURL) {
      PolyfillURL.createObjectURL = function (blob) {
        return OriginalURL.createObjectURL.apply(OriginalURL, arguments);
      };

      PolyfillURL.revokeObjectURL = function (url) {
        OriginalURL.revokeObjectURL(url);
      };
    }

    exports.URL = PolyfillURL;
  }
}

/***/ }),
/* 146 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


(function URLConstructorClosure() {
  'use strict';

  var relative = Object.create(null);
  relative['ftp'] = 21;
  relative['file'] = 0;
  relative['gopher'] = 70;
  relative['http'] = 80;
  relative['https'] = 443;
  relative['ws'] = 80;
  relative['wss'] = 443;
  var relativePathDotMapping = Object.create(null);
  relativePathDotMapping['%2e'] = '.';
  relativePathDotMapping['.%2e'] = '..';
  relativePathDotMapping['%2e.'] = '..';
  relativePathDotMapping['%2e%2e'] = '..';

  function isRelativeScheme(scheme) {
    return relative[scheme] !== undefined;
  }

  function invalid() {
    clear.call(this);
    this._isInvalid = true;
  }

  function IDNAToASCII(h) {
    if (h === '') {
      invalid.call(this);
    }

    return h.toLowerCase();
  }

  function percentEscape(c) {
    var unicode = c.charCodeAt(0);

    if (unicode > 0x20 && unicode < 0x7F && [0x22, 0x23, 0x3C, 0x3E, 0x3F, 0x60].indexOf(unicode) === -1) {
      return c;
    }

    return encodeURIComponent(c);
  }

  function percentEscapeQuery(c) {
    var unicode = c.charCodeAt(0);

    if (unicode > 0x20 && unicode < 0x7F && [0x22, 0x23, 0x3C, 0x3E, 0x60].indexOf(unicode) === -1) {
      return c;
    }

    return encodeURIComponent(c);
  }

  var EOF,
      ALPHA = /[a-zA-Z]/,
      ALPHANUMERIC = /[a-zA-Z0-9\+\-\.]/;

  function parse(input, stateOverride, base) {
    function err(message) {
      errors.push(message);
    }

    var state = stateOverride || 'scheme start',
        cursor = 0,
        buffer = '',
        seenAt = false,
        seenBracket = false,
        errors = [];

    loop: while ((input[cursor - 1] !== EOF || cursor === 0) && !this._isInvalid) {
      var c = input[cursor];

      switch (state) {
        case 'scheme start':
          if (c && ALPHA.test(c)) {
            buffer += c.toLowerCase();
            state = 'scheme';
          } else if (!stateOverride) {
            buffer = '';
            state = 'no scheme';
            continue;
          } else {
            err('Invalid scheme.');
            break loop;
          }

          break;

        case 'scheme':
          if (c && ALPHANUMERIC.test(c)) {
            buffer += c.toLowerCase();
          } else if (c === ':') {
            this._scheme = buffer;
            buffer = '';

            if (stateOverride) {
              break loop;
            }

            if (isRelativeScheme(this._scheme)) {
              this._isRelative = true;
            }

            if (this._scheme === 'file') {
              state = 'relative';
            } else if (this._isRelative && base && base._scheme === this._scheme) {
              state = 'relative or authority';
            } else if (this._isRelative) {
              state = 'authority first slash';
            } else {
              state = 'scheme data';
            }
          } else if (!stateOverride) {
            buffer = '';
            cursor = 0;
            state = 'no scheme';
            continue;
          } else if (c === EOF) {
            break loop;
          } else {
            err('Code point not allowed in scheme: ' + c);
            break loop;
          }

          break;

        case 'scheme data':
          if (c === '?') {
            this._query = '?';
            state = 'query';
          } else if (c === '#') {
            this._fragment = '#';
            state = 'fragment';
          } else {
            if (c !== EOF && c !== '\t' && c !== '\n' && c !== '\r') {
              this._schemeData += percentEscape(c);
            }
          }

          break;

        case 'no scheme':
          if (!base || !isRelativeScheme(base._scheme)) {
            err('Missing scheme.');
            invalid.call(this);
          } else {
            state = 'relative';
            continue;
          }

          break;

        case 'relative or authority':
          if (c === '/' && input[cursor + 1] === '/') {
            state = 'authority ignore slashes';
          } else {
            err('Expected /, got: ' + c);
            state = 'relative';
            continue;
          }

          break;

        case 'relative':
          this._isRelative = true;

          if (this._scheme !== 'file') {
            this._scheme = base._scheme;
          }

          if (c === EOF) {
            this._host = base._host;
            this._port = base._port;
            this._path = base._path.slice();
            this._query = base._query;
            this._username = base._username;
            this._password = base._password;
            break loop;
          } else if (c === '/' || c === '\\') {
            if (c === '\\') {
              err('\\ is an invalid code point.');
            }

            state = 'relative slash';
          } else if (c === '?') {
            this._host = base._host;
            this._port = base._port;
            this._path = base._path.slice();
            this._query = '?';
            this._username = base._username;
            this._password = base._password;
            state = 'query';
          } else if (c === '#') {
            this._host = base._host;
            this._port = base._port;
            this._path = base._path.slice();
            this._query = base._query;
            this._fragment = '#';
            this._username = base._username;
            this._password = base._password;
            state = 'fragment';
          } else {
            var nextC = input[cursor + 1];
            var nextNextC = input[cursor + 2];

            if (this._scheme !== 'file' || !ALPHA.test(c) || nextC !== ':' && nextC !== '|' || nextNextC !== EOF && nextNextC !== '/' && nextNextC !== '\\' && nextNextC !== '?' && nextNextC !== '#') {
              this._host = base._host;
              this._port = base._port;
              this._username = base._username;
              this._password = base._password;
              this._path = base._path.slice();

              this._path.pop();
            }

            state = 'relative path';
            continue;
          }

          break;

        case 'relative slash':
          if (c === '/' || c === '\\') {
            if (c === '\\') {
              err('\\ is an invalid code point.');
            }

            if (this._scheme === 'file') {
              state = 'file host';
            } else {
              state = 'authority ignore slashes';
            }
          } else {
            if (this._scheme !== 'file') {
              this._host = base._host;
              this._port = base._port;
              this._username = base._username;
              this._password = base._password;
            }

            state = 'relative path';
            continue;
          }

          break;

        case 'authority first slash':
          if (c === '/') {
            state = 'authority second slash';
          } else {
            err('Expected \'/\', got: ' + c);
            state = 'authority ignore slashes';
            continue;
          }

          break;

        case 'authority second slash':
          state = 'authority ignore slashes';

          if (c !== '/') {
            err('Expected \'/\', got: ' + c);
            continue;
          }

          break;

        case 'authority ignore slashes':
          if (c !== '/' && c !== '\\') {
            state = 'authority';
            continue;
          } else {
            err('Expected authority, got: ' + c);
          }

          break;

        case 'authority':
          if (c === '@') {
            if (seenAt) {
              err('@ already seen.');
              buffer += '%40';
            }

            seenAt = true;

            for (var i = 0; i < buffer.length; i++) {
              var cp = buffer[i];

              if (cp === '\t' || cp === '\n' || cp === '\r') {
                err('Invalid whitespace in authority.');
                continue;
              }

              if (cp === ':' && this._password === null) {
                this._password = '';
                continue;
              }

              var tempC = percentEscape(cp);

              if (this._password !== null) {
                this._password += tempC;
              } else {
                this._username += tempC;
              }
            }

            buffer = '';
          } else if (c === EOF || c === '/' || c === '\\' || c === '?' || c === '#') {
            cursor -= buffer.length;
            buffer = '';
            state = 'host';
            continue;
          } else {
            buffer += c;
          }

          break;

        case 'file host':
          if (c === EOF || c === '/' || c === '\\' || c === '?' || c === '#') {
            if (buffer.length === 2 && ALPHA.test(buffer[0]) && (buffer[1] === ':' || buffer[1] === '|')) {
              state = 'relative path';
            } else if (buffer.length === 0) {
              state = 'relative path start';
            } else {
              this._host = IDNAToASCII.call(this, buffer);
              buffer = '';
              state = 'relative path start';
            }

            continue;
          } else if (c === '\t' || c === '\n' || c === '\r') {
            err('Invalid whitespace in file host.');
          } else {
            buffer += c;
          }

          break;

        case 'host':
        case 'hostname':
          if (c === ':' && !seenBracket) {
            this._host = IDNAToASCII.call(this, buffer);
            buffer = '';
            state = 'port';

            if (stateOverride === 'hostname') {
              break loop;
            }
          } else if (c === EOF || c === '/' || c === '\\' || c === '?' || c === '#') {
            this._host = IDNAToASCII.call(this, buffer);
            buffer = '';
            state = 'relative path start';

            if (stateOverride) {
              break loop;
            }

            continue;
          } else if (c !== '\t' && c !== '\n' && c !== '\r') {
            if (c === '[') {
              seenBracket = true;
            } else if (c === ']') {
              seenBracket = false;
            }

            buffer += c;
          } else {
            err('Invalid code point in host/hostname: ' + c);
          }

          break;

        case 'port':
          if (/[0-9]/.test(c)) {
            buffer += c;
          } else if (c === EOF || c === '/' || c === '\\' || c === '?' || c === '#' || stateOverride) {
            if (buffer !== '') {
              var temp = parseInt(buffer, 10);

              if (temp !== relative[this._scheme]) {
                this._port = temp + '';
              }

              buffer = '';
            }

            if (stateOverride) {
              break loop;
            }

            state = 'relative path start';
            continue;
          } else if (c === '\t' || c === '\n' || c === '\r') {
            err('Invalid code point in port: ' + c);
          } else {
            invalid.call(this);
          }

          break;

        case 'relative path start':
          if (c === '\\') {
            err('\'\\\' not allowed in path.');
          }

          state = 'relative path';

          if (c !== '/' && c !== '\\') {
            continue;
          }

          break;

        case 'relative path':
          if (c === EOF || c === '/' || c === '\\' || !stateOverride && (c === '?' || c === '#')) {
            if (c === '\\') {
              err('\\ not allowed in relative path.');
            }

            var tmp;

            if (tmp = relativePathDotMapping[buffer.toLowerCase()]) {
              buffer = tmp;
            }

            if (buffer === '..') {
              this._path.pop();

              if (c !== '/' && c !== '\\') {
                this._path.push('');
              }
            } else if (buffer === '.' && c !== '/' && c !== '\\') {
              this._path.push('');
            } else if (buffer !== '.') {
              if (this._scheme === 'file' && this._path.length === 0 && buffer.length === 2 && ALPHA.test(buffer[0]) && buffer[1] === '|') {
                buffer = buffer[0] + ':';
              }

              this._path.push(buffer);
            }

            buffer = '';

            if (c === '?') {
              this._query = '?';
              state = 'query';
            } else if (c === '#') {
              this._fragment = '#';
              state = 'fragment';
            }
          } else if (c !== '\t' && c !== '\n' && c !== '\r') {
            buffer += percentEscape(c);
          }

          break;

        case 'query':
          if (!stateOverride && c === '#') {
            this._fragment = '#';
            state = 'fragment';
          } else if (c !== EOF && c !== '\t' && c !== '\n' && c !== '\r') {
            this._query += percentEscapeQuery(c);
          }

          break;

        case 'fragment':
          if (c !== EOF && c !== '\t' && c !== '\n' && c !== '\r') {
            this._fragment += c;
          }

          break;
      }

      cursor++;
    }
  }

  function clear() {
    this._scheme = '';
    this._schemeData = '';
    this._username = '';
    this._password = null;
    this._host = '';
    this._port = '';
    this._path = [];
    this._query = '';
    this._fragment = '';
    this._isInvalid = false;
    this._isRelative = false;
  }

  function JURL(url, base) {
    if (base !== undefined && !(base instanceof JURL)) {
      base = new JURL(String(base));
    }

    this._url = url;
    clear.call(this);
    var input = url.replace(/^[ \t\r\n\f]+|[ \t\r\n\f]+$/g, '');
    parse.call(this, input, null, base);
  }

  JURL.prototype = {
    toString: function toString() {
      return this.href;
    },

    get href() {
      if (this._isInvalid) {
        return this._url;
      }

      var authority = '';

      if (this._username !== '' || this._password !== null) {
        authority = this._username + (this._password !== null ? ':' + this._password : '') + '@';
      }

      return this.protocol + (this._isRelative ? '//' + authority + this.host : '') + this.pathname + this._query + this._fragment;
    },

    set href(value) {
      clear.call(this);
      parse.call(this, value);
    },

    get protocol() {
      return this._scheme + ':';
    },

    set protocol(value) {
      if (this._isInvalid) {
        return;
      }

      parse.call(this, value + ':', 'scheme start');
    },

    get host() {
      return this._isInvalid ? '' : this._port ? this._host + ':' + this._port : this._host;
    },

    set host(value) {
      if (this._isInvalid || !this._isRelative) {
        return;
      }

      parse.call(this, value, 'host');
    },

    get hostname() {
      return this._host;
    },

    set hostname(value) {
      if (this._isInvalid || !this._isRelative) {
        return;
      }

      parse.call(this, value, 'hostname');
    },

    get port() {
      return this._port;
    },

    set port(value) {
      if (this._isInvalid || !this._isRelative) {
        return;
      }

      parse.call(this, value, 'port');
    },

    get pathname() {
      return this._isInvalid ? '' : this._isRelative ? '/' + this._path.join('/') : this._schemeData;
    },

    set pathname(value) {
      if (this._isInvalid || !this._isRelative) {
        return;
      }

      this._path = [];
      parse.call(this, value, 'relative path start');
    },

    get search() {
      return this._isInvalid || !this._query || this._query === '?' ? '' : this._query;
    },

    set search(value) {
      if (this._isInvalid || !this._isRelative) {
        return;
      }

      this._query = '?';

      if (value[0] === '?') {
        value = value.slice(1);
      }

      parse.call(this, value, 'query');
    },

    get hash() {
      return this._isInvalid || !this._fragment || this._fragment === '#' ? '' : this._fragment;
    },

    set hash(value) {
      if (this._isInvalid) {
        return;
      }

      this._fragment = '#';

      if (value[0] === '#') {
        value = value.slice(1);
      }

      parse.call(this, value, 'fragment');
    },

    get origin() {
      var host;

      if (this._isInvalid || !this._scheme) {
        return '';
      }

      switch (this._scheme) {
        case 'data':
        case 'file':
        case 'javascript':
        case 'mailto':
          return 'null';

        case 'blob':
          try {
            return new JURL(this._schemeData).origin || 'null';
          } catch (_) {}

          return 'null';
      }

      host = this.host;

      if (!host) {
        return '';
      }

      return this._scheme + '://' + host;
    }

  };
  exports.URL = JURL;
})();

/***/ }),
/* 147 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getDocument = getDocument;
exports.setPDFNetworkStreamFactory = setPDFNetworkStreamFactory;
exports.build = exports.version = exports.PDFPageProxy = exports.PDFDocumentProxy = exports.PDFWorker = exports.PDFDataRangeTransport = exports.LoopbackPort = void 0;

var _regenerator = _interopRequireDefault(__w_pdfjs_require__(148));

var _util = __w_pdfjs_require__(1);

var _display_utils = __w_pdfjs_require__(151);

var _font_loader = __w_pdfjs_require__(152);

var _api_compatibility = __w_pdfjs_require__(153);

var _canvas = __w_pdfjs_require__(154);

var _global_scope = _interopRequireDefault(__w_pdfjs_require__(3));

var _worker_options = __w_pdfjs_require__(156);

var _message_handler = __w_pdfjs_require__(157);

var _metadata = __w_pdfjs_require__(158);

var _transport_stream = __w_pdfjs_require__(160);

var _webgl = __w_pdfjs_require__(161);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }

function _iterableToArrayLimit(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }

function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }

function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }

function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

var DEFAULT_RANGE_CHUNK_SIZE = 65536;
var isWorkerDisabled = false;
var fallbackWorkerSrc;
var fakeWorkerFilesLoader = null;
{
  var useRequireEnsure = false;

  if (typeof window === 'undefined') {
    isWorkerDisabled = true;

    if (typeof require.ensure === 'undefined') {
      require.ensure = require('node-ensure');
    }

    useRequireEnsure = true;
  } else if (typeof require !== 'undefined' && typeof require.ensure === 'function') {
    useRequireEnsure = true;
  }

  if (typeof requirejs !== 'undefined' && requirejs.toUrl) {
    fallbackWorkerSrc = requirejs.toUrl('pdfjs-dist/build/pdf.worker.js');
  }

  var dynamicLoaderSupported = typeof requirejs !== 'undefined' && requirejs.load;
  fakeWorkerFilesLoader = useRequireEnsure ? function () {
    return new Promise(function (resolve, reject) {
      require.ensure([], function () {
        try {
          var worker;
          worker = require('./pdf.worker.js');
          resolve(worker.WorkerMessageHandler);
        } catch (ex) {
          reject(ex);
        }
      }, reject, 'pdfjsWorker');
    });
  } : dynamicLoaderSupported ? function () {
    return new Promise(function (resolve, reject) {
      requirejs(['pdfjs-dist/build/pdf.worker'], function (worker) {
        try {
          resolve(worker.WorkerMessageHandler);
        } catch (ex) {
          reject(ex);
        }
      }, reject);
    });
  } : null;

  if (!fallbackWorkerSrc && (typeof document === "undefined" ? "undefined" : _typeof(document)) === 'object' && 'currentScript' in document) {
    var pdfjsFilePath = document.currentScript && document.currentScript.src;

    if (pdfjsFilePath) {
      fallbackWorkerSrc = pdfjsFilePath.replace(/(\.(?:min\.)?js)(\?.*)?$/i, '.worker$1$2');
    }
  }
}
var createPDFNetworkStream;

function setPDFNetworkStreamFactory(pdfNetworkStreamFactory) {
  createPDFNetworkStream = pdfNetworkStreamFactory;
}

function getDocument(src) {
  var task = new PDFDocumentLoadingTask();
  var source;

  if (typeof src === 'string') {
    source = {
      url: src
    };
  } else if ((0, _util.isArrayBuffer)(src)) {
    source = {
      data: src
    };
  } else if (src instanceof PDFDataRangeTransport) {
    source = {
      range: src
    };
  } else {
    if (_typeof(src) !== 'object') {
      throw new Error('Invalid parameter in getDocument, ' + 'need either Uint8Array, string or a parameter object');
    }

    if (!src.url && !src.data && !src.range) {
      throw new Error('Invalid parameter object: need either .data, .range or .url');
    }

    source = src;
  }

  var params = Object.create(null);
  var rangeTransport = null,
      worker = null;

  for (var key in source) {
    if (key === 'url' && typeof window !== 'undefined') {
      params[key] = new _util.URL(source[key], window.location).href;
      continue;
    } else if (key === 'range') {
      rangeTransport = source[key];
      continue;
    } else if (key === 'worker') {
      worker = source[key];
      continue;
    } else if (key === 'data' && !(source[key] instanceof Uint8Array)) {
      var pdfBytes = source[key];

      if (typeof pdfBytes === 'string') {
        params[key] = (0, _util.stringToBytes)(pdfBytes);
      } else if (_typeof(pdfBytes) === 'object' && pdfBytes !== null && !isNaN(pdfBytes.length)) {
        params[key] = new Uint8Array(pdfBytes);
      } else if ((0, _util.isArrayBuffer)(pdfBytes)) {
        params[key] = new Uint8Array(pdfBytes);
      } else {
        throw new Error('Invalid PDF binary data: either typed array, ' + 'string or array-like object is expected in the ' + 'data property.');
      }

      continue;
    }

    params[key] = source[key];
  }

  params.rangeChunkSize = params.rangeChunkSize || DEFAULT_RANGE_CHUNK_SIZE;
  params.CMapReaderFactory = params.CMapReaderFactory || _display_utils.DOMCMapReaderFactory;
  params.ignoreErrors = params.stopAtErrors !== true;
  params.pdfBug = params.pdfBug === true;
  var NativeImageDecoderValues = Object.values(_util.NativeImageDecoding);

  if (params.nativeImageDecoderSupport === undefined || !NativeImageDecoderValues.includes(params.nativeImageDecoderSupport)) {
    params.nativeImageDecoderSupport = _api_compatibility.apiCompatibilityParams.nativeImageDecoderSupport || _util.NativeImageDecoding.DECODE;
  }

  if (!Number.isInteger(params.maxImageSize)) {
    params.maxImageSize = -1;
  }

  if (typeof params.isEvalSupported !== 'boolean') {
    params.isEvalSupported = true;
  }

  if (typeof params.disableFontFace !== 'boolean') {
    params.disableFontFace = _api_compatibility.apiCompatibilityParams.disableFontFace || false;
  }

  if (typeof params.disableRange !== 'boolean') {
    params.disableRange = false;
  }

  if (typeof params.disableStream !== 'boolean') {
    params.disableStream = false;
  }

  if (typeof params.disableAutoFetch !== 'boolean') {
    params.disableAutoFetch = false;
  }

  if (typeof params.disableCreateObjectURL !== 'boolean') {
    params.disableCreateObjectURL = _api_compatibility.apiCompatibilityParams.disableCreateObjectURL || false;
  }

  (0, _util.setVerbosityLevel)(params.verbosity);

  if (!worker) {
    var workerParams = {
      postMessageTransfers: params.postMessageTransfers,
      verbosity: params.verbosity,
      port: _worker_options.GlobalWorkerOptions.workerPort
    };
    worker = workerParams.port ? PDFWorker.fromPort(workerParams) : new PDFWorker(workerParams);
    task._worker = worker;
  }

  var docId = task.docId;
  worker.promise.then(function () {
    if (task.destroyed) {
      throw new Error('Loading aborted');
    }

    return _fetchDocument(worker, params, rangeTransport, docId).then(function (workerId) {
      if (task.destroyed) {
        throw new Error('Loading aborted');
      }

      var networkStream;

      if (rangeTransport) {
        networkStream = new _transport_stream.PDFDataTransportStream({
          length: params.length,
          initialData: params.initialData,
          progressiveDone: params.progressiveDone,
          disableRange: params.disableRange,
          disableStream: params.disableStream
        }, rangeTransport);
      } else if (!params.data) {
        networkStream = createPDFNetworkStream({
          url: params.url,
          length: params.length,
          httpHeaders: params.httpHeaders,
          withCredentials: params.withCredentials,
          rangeChunkSize: params.rangeChunkSize,
          disableRange: params.disableRange,
          disableStream: params.disableStream
        });
      }

      var messageHandler = new _message_handler.MessageHandler(docId, workerId, worker.port);
      messageHandler.postMessageTransfers = worker.postMessageTransfers;
      var transport = new WorkerTransport(messageHandler, task, networkStream, params);
      task._transport = transport;
      messageHandler.send('Ready', null);
    });
  })["catch"](task._capability.reject);
  return task;
}

function _fetchDocument(worker, source, pdfDataRangeTransport, docId) {
  if (worker.destroyed) {
    return Promise.reject(new Error('Worker was destroyed'));
  }

  if (pdfDataRangeTransport) {
    source.length = pdfDataRangeTransport.length;
    source.initialData = pdfDataRangeTransport.initialData;
    source.progressiveDone = pdfDataRangeTransport.progressiveDone;
  }

  return worker.messageHandler.sendWithPromise('GetDocRequest', {
    docId: docId,
    apiVersion: '2.3.65',
    source: {
      data: source.data,
      url: source.url,
      password: source.password,
      disableAutoFetch: source.disableAutoFetch,
      rangeChunkSize: source.rangeChunkSize,
      length: source.length
    },
    maxImageSize: source.maxImageSize,
    disableFontFace: source.disableFontFace,
    disableCreateObjectURL: source.disableCreateObjectURL,
    postMessageTransfers: worker.postMessageTransfers,
    docBaseUrl: source.docBaseUrl,
    nativeImageDecoderSupport: source.nativeImageDecoderSupport,
    ignoreErrors: source.ignoreErrors,
    isEvalSupported: source.isEvalSupported
  }).then(function (workerId) {
    if (worker.destroyed) {
      throw new Error('Worker was destroyed');
    }

    return workerId;
  });
}

var PDFDocumentLoadingTask = function PDFDocumentLoadingTaskClosure() {
  var nextDocumentId = 0;

  var PDFDocumentLoadingTask =
  /*#__PURE__*/
  function () {
    function PDFDocumentLoadingTask() {
      _classCallCheck(this, PDFDocumentLoadingTask);

      this._capability = (0, _util.createPromiseCapability)();
      this._transport = null;
      this._worker = null;
      this.docId = 'd' + nextDocumentId++;
      this.destroyed = false;
      this.onPassword = null;
      this.onProgress = null;
      this.onUnsupportedFeature = null;
    }

    _createClass(PDFDocumentLoadingTask, [{
      key: "destroy",
      value: function destroy() {
        var _this = this;

        this.destroyed = true;
        var transportDestroyed = !this._transport ? Promise.resolve() : this._transport.destroy();
        return transportDestroyed.then(function () {
          _this._transport = null;

          if (_this._worker) {
            _this._worker.destroy();

            _this._worker = null;
          }
        });
      }
    }, {
      key: "then",
      value: function then(onFulfilled, onRejected) {
        (0, _display_utils.deprecated)('PDFDocumentLoadingTask.then method, ' + 'use the `promise` getter instead.');
        return this.promise.then.apply(this.promise, arguments);
      }
    }, {
      key: "promise",
      get: function get() {
        return this._capability.promise;
      }
    }]);

    return PDFDocumentLoadingTask;
  }();

  return PDFDocumentLoadingTask;
}();

var PDFDataRangeTransport =
/*#__PURE__*/
function () {
  function PDFDataRangeTransport(length, initialData) {
    var progressiveDone = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

    _classCallCheck(this, PDFDataRangeTransport);

    this.length = length;
    this.initialData = initialData;
    this.progressiveDone = progressiveDone;
    this._rangeListeners = [];
    this._progressListeners = [];
    this._progressiveReadListeners = [];
    this._progressiveDoneListeners = [];
    this._readyCapability = (0, _util.createPromiseCapability)();
  }

  _createClass(PDFDataRangeTransport, [{
    key: "addRangeListener",
    value: function addRangeListener(listener) {
      this._rangeListeners.push(listener);
    }
  }, {
    key: "addProgressListener",
    value: function addProgressListener(listener) {
      this._progressListeners.push(listener);
    }
  }, {
    key: "addProgressiveReadListener",
    value: function addProgressiveReadListener(listener) {
      this._progressiveReadListeners.push(listener);
    }
  }, {
    key: "addProgressiveDoneListener",
    value: function addProgressiveDoneListener(listener) {
      this._progressiveDoneListeners.push(listener);
    }
  }, {
    key: "onDataRange",
    value: function onDataRange(begin, chunk) {
      var _iteratorNormalCompletion = true;
      var _didIteratorError = false;
      var _iteratorError = undefined;

      try {
        for (var _iterator = this._rangeListeners[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
          var listener = _step.value;
          listener(begin, chunk);
        }
      } catch (err) {
        _didIteratorError = true;
        _iteratorError = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion && _iterator["return"] != null) {
            _iterator["return"]();
          }
        } finally {
          if (_didIteratorError) {
            throw _iteratorError;
          }
        }
      }
    }
  }, {
    key: "onDataProgress",
    value: function onDataProgress(loaded, total) {
      var _this2 = this;

      this._readyCapability.promise.then(function () {
        var _iteratorNormalCompletion2 = true;
        var _didIteratorError2 = false;
        var _iteratorError2 = undefined;

        try {
          for (var _iterator2 = _this2._progressListeners[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
            var listener = _step2.value;
            listener(loaded, total);
          }
        } catch (err) {
          _didIteratorError2 = true;
          _iteratorError2 = err;
        } finally {
          try {
            if (!_iteratorNormalCompletion2 && _iterator2["return"] != null) {
              _iterator2["return"]();
            }
          } finally {
            if (_didIteratorError2) {
              throw _iteratorError2;
            }
          }
        }
      });
    }
  }, {
    key: "onDataProgressiveRead",
    value: function onDataProgressiveRead(chunk) {
      var _this3 = this;

      this._readyCapability.promise.then(function () {
        var _iteratorNormalCompletion3 = true;
        var _didIteratorError3 = false;
        var _iteratorError3 = undefined;

        try {
          for (var _iterator3 = _this3._progressiveReadListeners[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
            var listener = _step3.value;
            listener(chunk);
          }
        } catch (err) {
          _didIteratorError3 = true;
          _iteratorError3 = err;
        } finally {
          try {
            if (!_iteratorNormalCompletion3 && _iterator3["return"] != null) {
              _iterator3["return"]();
            }
          } finally {
            if (_didIteratorError3) {
              throw _iteratorError3;
            }
          }
        }
      });
    }
  }, {
    key: "onDataProgressiveDone",
    value: function onDataProgressiveDone() {
      var _this4 = this;

      this._readyCapability.promise.then(function () {
        var _iteratorNormalCompletion4 = true;
        var _didIteratorError4 = false;
        var _iteratorError4 = undefined;

        try {
          for (var _iterator4 = _this4._progressiveDoneListeners[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
            var listener = _step4.value;
            listener();
          }
        } catch (err) {
          _didIteratorError4 = true;
          _iteratorError4 = err;
        } finally {
          try {
            if (!_iteratorNormalCompletion4 && _iterator4["return"] != null) {
              _iterator4["return"]();
            }
          } finally {
            if (_didIteratorError4) {
              throw _iteratorError4;
            }
          }
        }
      });
    }
  }, {
    key: "transportReady",
    value: function transportReady() {
      this._readyCapability.resolve();
    }
  }, {
    key: "requestDataRange",
    value: function requestDataRange(begin, end) {
      (0, _util.unreachable)('Abstract method PDFDataRangeTransport.requestDataRange');
    }
  }, {
    key: "abort",
    value: function abort() {}
  }]);

  return PDFDataRangeTransport;
}();

exports.PDFDataRangeTransport = PDFDataRangeTransport;

var PDFDocumentProxy =
/*#__PURE__*/
function () {
  function PDFDocumentProxy(pdfInfo, transport) {
    _classCallCheck(this, PDFDocumentProxy);

    this._pdfInfo = pdfInfo;
    this._transport = transport;
  }

  _createClass(PDFDocumentProxy, [{
    key: "getPage",
    value: function getPage(pageNumber) {
      return this._transport.getPage(pageNumber);
    }
  }, {
    key: "getPageIndex",
    value: function getPageIndex(ref) {
      return this._transport.getPageIndex(ref);
    }
  }, {
    key: "getDestinations",
    value: function getDestinations() {
      return this._transport.getDestinations();
    }
  }, {
    key: "getDestination",
    value: function getDestination(id) {
      return this._transport.getDestination(id);
    }
  }, {
    key: "getPageLabels",
    value: function getPageLabels() {
      return this._transport.getPageLabels();
    }
  }, {
    key: "getPageLayout",
    value: function getPageLayout() {
      return this._transport.getPageLayout();
    }
  }, {
    key: "getPageMode",
    value: function getPageMode() {
      return this._transport.getPageMode();
    }
  }, {
    key: "getViewerPreferences",
    value: function getViewerPreferences() {
      return this._transport.getViewerPreferences();
    }
  }, {
    key: "getOpenActionDestination",
    value: function getOpenActionDestination() {
      return this._transport.getOpenActionDestination();
    }
  }, {
    key: "getAttachments",
    value: function getAttachments() {
      return this._transport.getAttachments();
    }
  }, {
    key: "getJavaScript",
    value: function getJavaScript() {
      return this._transport.getJavaScript();
    }
  }, {
    key: "getOutline",
    value: function getOutline() {
      return this._transport.getOutline();
    }
  }, {
    key: "getPermissions",
    value: function getPermissions() {
      return this._transport.getPermissions();
    }
  }, {
    key: "getMetadata",
    value: function getMetadata() {
      return this._transport.getMetadata();
    }
  }, {
    key: "getData",
    value: function getData() {
      return this._transport.getData();
    }
  }, {
    key: "getDownloadInfo",
    value: function getDownloadInfo() {
      return this._transport.downloadInfoCapability.promise;
    }
  }, {
    key: "getStats",
    value: function getStats() {
      return this._transport.getStats();
    }
  }, {
    key: "cleanup",
    value: function cleanup() {
      this._transport.startCleanup();
    }
  }, {
    key: "destroy",
    value: function destroy() {
      return this.loadingTask.destroy();
    }
  }, {
    key: "numPages",
    get: function get() {
      return this._pdfInfo.numPages;
    }
  }, {
    key: "fingerprint",
    get: function get() {
      return this._pdfInfo.fingerprint;
    }
  }, {
    key: "loadingParams",
    get: function get() {
      return this._transport.loadingParams;
    }
  }, {
    key: "loadingTask",
    get: function get() {
      return this._transport.loadingTask;
    }
  }]);

  return PDFDocumentProxy;
}();

exports.PDFDocumentProxy = PDFDocumentProxy;

var PDFPageProxy =
/*#__PURE__*/
function () {
  function PDFPageProxy(pageIndex, pageInfo, transport) {
    var pdfBug = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;

    _classCallCheck(this, PDFPageProxy);

    this.pageIndex = pageIndex;
    this._pageInfo = pageInfo;
    this._transport = transport;
    this._stats = pdfBug ? new _display_utils.StatTimer() : _display_utils.DummyStatTimer;
    this._pdfBug = pdfBug;
    this.commonObjs = transport.commonObjs;
    this.objs = new PDFObjects();
    this.cleanupAfterRender = false;
    this.pendingCleanup = false;
    this.intentStates = Object.create(null);
    this.destroyed = false;
  }

  _createClass(PDFPageProxy, [{
    key: "getViewport",
    value: function getViewport() {
      var _ref = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
          scale = _ref.scale,
          _ref$rotation = _ref.rotation,
          rotation = _ref$rotation === void 0 ? this.rotate : _ref$rotation,
          _ref$dontFlip = _ref.dontFlip,
          dontFlip = _ref$dontFlip === void 0 ? false : _ref$dontFlip;

      if (arguments.length > 1 || typeof arguments[0] === 'number') {
        (0, _display_utils.deprecated)('getViewport is called with obsolete arguments.');
        scale = arguments[0];
        rotation = typeof arguments[1] === 'number' ? arguments[1] : this.rotate;
        dontFlip = typeof arguments[2] === 'boolean' ? arguments[2] : false;
      }

      return new _display_utils.PageViewport({
        viewBox: this.view,
        scale: scale,
        rotation: rotation,
        dontFlip: dontFlip
      });
    }
  }, {
    key: "getAnnotations",
    value: function getAnnotations() {
      var _ref2 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
          _ref2$intent = _ref2.intent,
          intent = _ref2$intent === void 0 ? null : _ref2$intent;

      if (!this.annotationsPromise || this.annotationsIntent !== intent) {
        this.annotationsPromise = this._transport.getAnnotations(this.pageIndex, intent);
        this.annotationsIntent = intent;
      }

      return this.annotationsPromise;
    }
  }, {
    key: "render",
    value: function render(_ref3) {
      var _this5 = this;

      var canvasContext = _ref3.canvasContext,
          viewport = _ref3.viewport,
          _ref3$intent = _ref3.intent,
          intent = _ref3$intent === void 0 ? 'display' : _ref3$intent,
          _ref3$enableWebGL = _ref3.enableWebGL,
          enableWebGL = _ref3$enableWebGL === void 0 ? false : _ref3$enableWebGL,
          _ref3$renderInteracti = _ref3.renderInteractiveForms,
          renderInteractiveForms = _ref3$renderInteracti === void 0 ? false : _ref3$renderInteracti,
          _ref3$transform = _ref3.transform,
          transform = _ref3$transform === void 0 ? null : _ref3$transform,
          _ref3$imageLayer = _ref3.imageLayer,
          imageLayer = _ref3$imageLayer === void 0 ? null : _ref3$imageLayer,
          _ref3$canvasFactory = _ref3.canvasFactory,
          canvasFactory = _ref3$canvasFactory === void 0 ? null : _ref3$canvasFactory,
          _ref3$background = _ref3.background,
          background = _ref3$background === void 0 ? null : _ref3$background;
      var stats = this._stats;
      stats.time('Overall');
      this.pendingCleanup = false;
      var renderingIntent = intent === 'print' ? 'print' : 'display';
      var canvasFactoryInstance = canvasFactory || new _display_utils.DOMCanvasFactory();
      var webGLContext = new _webgl.WebGLContext({
        enable: enableWebGL
      });

      if (!this.intentStates[renderingIntent]) {
        this.intentStates[renderingIntent] = Object.create(null);
      }

      var intentState = this.intentStates[renderingIntent];

      if (!intentState.displayReadyCapability) {
        intentState.displayReadyCapability = (0, _util.createPromiseCapability)();
        intentState.operatorList = {
          fnArray: [],
          argsArray: [],
          lastChunk: false
        };
        stats.time('Page Request');

        this._transport.messageHandler.send('RenderPageRequest', {
          pageIndex: this.pageNumber - 1,
          intent: renderingIntent,
          renderInteractiveForms: renderInteractiveForms === true
        });
      }

      var complete = function complete(error) {
        var i = intentState.renderTasks.indexOf(internalRenderTask);

        if (i >= 0) {
          intentState.renderTasks.splice(i, 1);
        }

        if (_this5.cleanupAfterRender || renderingIntent === 'print') {
          _this5.pendingCleanup = true;
        }

        _this5._tryCleanup();

        if (error) {
          internalRenderTask.capability.reject(error);
        } else {
          internalRenderTask.capability.resolve();
        }

        stats.timeEnd('Rendering');
        stats.timeEnd('Overall');
      };

      var internalRenderTask = new InternalRenderTask({
        callback: complete,
        params: {
          canvasContext: canvasContext,
          viewport: viewport,
          transform: transform,
          imageLayer: imageLayer,
          background: background
        },
        objs: this.objs,
        commonObjs: this.commonObjs,
        operatorList: intentState.operatorList,
        pageNumber: this.pageNumber,
        canvasFactory: canvasFactoryInstance,
        webGLContext: webGLContext,
        useRequestAnimationFrame: renderingIntent !== 'print',
        pdfBug: this._pdfBug
      });

      if (!intentState.renderTasks) {
        intentState.renderTasks = [];
      }

      intentState.renderTasks.push(internalRenderTask);
      var renderTask = internalRenderTask.task;
      intentState.displayReadyCapability.promise.then(function (transparency) {
        if (_this5.pendingCleanup) {
          complete();
          return;
        }

        stats.time('Rendering');
        internalRenderTask.initializeGraphics(transparency);
        internalRenderTask.operatorListChanged();
      })["catch"](complete);
      return renderTask;
    }
  }, {
    key: "getOperatorList",
    value: function getOperatorList() {
      function operatorListChanged() {
        if (intentState.operatorList.lastChunk) {
          intentState.opListReadCapability.resolve(intentState.operatorList);
          var i = intentState.renderTasks.indexOf(opListTask);

          if (i >= 0) {
            intentState.renderTasks.splice(i, 1);
          }
        }
      }

      var renderingIntent = 'oplist';

      if (!this.intentStates[renderingIntent]) {
        this.intentStates[renderingIntent] = Object.create(null);
      }

      var intentState = this.intentStates[renderingIntent];
      var opListTask;

      if (!intentState.opListReadCapability) {
        opListTask = {};
        opListTask.operatorListChanged = operatorListChanged;
        intentState.opListReadCapability = (0, _util.createPromiseCapability)();
        intentState.renderTasks = [];
        intentState.renderTasks.push(opListTask);
        intentState.operatorList = {
          fnArray: [],
          argsArray: [],
          lastChunk: false
        };

        this._stats.time('Page Request');

        this._transport.messageHandler.send('RenderPageRequest', {
          pageIndex: this.pageIndex,
          intent: renderingIntent
        });
      }

      return intentState.opListReadCapability.promise;
    }
  }, {
    key: "streamTextContent",
    value: function streamTextContent() {
      var _ref4 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
          _ref4$normalizeWhites = _ref4.normalizeWhitespace,
          normalizeWhitespace = _ref4$normalizeWhites === void 0 ? false : _ref4$normalizeWhites,
          _ref4$disableCombineT = _ref4.disableCombineTextItems,
          disableCombineTextItems = _ref4$disableCombineT === void 0 ? false : _ref4$disableCombineT;

      var TEXT_CONTENT_CHUNK_SIZE = 100;
      return this._transport.messageHandler.sendWithStream('GetTextContent', {
        pageIndex: this.pageNumber - 1,
        normalizeWhitespace: normalizeWhitespace === true,
        combineTextItems: disableCombineTextItems !== true
      }, {
        highWaterMark: TEXT_CONTENT_CHUNK_SIZE,
        size: function size(textContent) {
          return textContent.items.length;
        }
      });
    }
  }, {
    key: "getTextContent",
    value: function getTextContent() {
      var params = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      var readableStream = this.streamTextContent(params);
      return new Promise(function (resolve, reject) {
        function pump() {
          reader.read().then(function (_ref5) {
            var _textContent$items;

            var value = _ref5.value,
                done = _ref5.done;

            if (done) {
              resolve(textContent);
              return;
            }

            Object.assign(textContent.styles, value.styles);

            (_textContent$items = textContent.items).push.apply(_textContent$items, _toConsumableArray(value.items));

            pump();
          }, reject);
        }

        var reader = readableStream.getReader();
        var textContent = {
          items: [],
          styles: Object.create(null)
        };
        pump();
      });
    }
  }, {
    key: "_destroy",
    value: function _destroy() {
      this.destroyed = true;
      this._transport.pageCache[this.pageIndex] = null;
      var waitOn = [];
      Object.keys(this.intentStates).forEach(function (intent) {
        if (intent === 'oplist') {
          return;
        }

        var intentState = this.intentStates[intent];
        intentState.renderTasks.forEach(function (renderTask) {
          var renderCompleted = renderTask.capability.promise["catch"](function () {});
          waitOn.push(renderCompleted);
          renderTask.cancel();
        });
      }, this);
      this.objs.clear();
      this.annotationsPromise = null;
      this.pendingCleanup = false;
      return Promise.all(waitOn);
    }
  }, {
    key: "cleanup",
    value: function cleanup() {
      var resetStats = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
      this.pendingCleanup = true;

      this._tryCleanup(resetStats);
    }
  }, {
    key: "_tryCleanup",
    value: function _tryCleanup() {
      var resetStats = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

      if (!this.pendingCleanup || Object.keys(this.intentStates).some(function (intent) {
        var intentState = this.intentStates[intent];
        return intentState.renderTasks.length !== 0 || !intentState.operatorList.lastChunk;
      }, this)) {
        return;
      }

      Object.keys(this.intentStates).forEach(function (intent) {
        delete this.intentStates[intent];
      }, this);
      this.objs.clear();
      this.annotationsPromise = null;

      if (resetStats && this._stats instanceof _display_utils.StatTimer) {
        this._stats = new _display_utils.StatTimer();
      }

      this.pendingCleanup = false;
    }
  }, {
    key: "_startRenderPage",
    value: function _startRenderPage(transparency, intent) {
      var intentState = this.intentStates[intent];

      if (intentState.displayReadyCapability) {
        intentState.displayReadyCapability.resolve(transparency);
      }
    }
  }, {
    key: "_renderPageChunk",
    value: function _renderPageChunk(operatorListChunk, intent) {
      var intentState = this.intentStates[intent];

      for (var i = 0, ii = operatorListChunk.length; i < ii; i++) {
        intentState.operatorList.fnArray.push(operatorListChunk.fnArray[i]);
        intentState.operatorList.argsArray.push(operatorListChunk.argsArray[i]);
      }

      intentState.operatorList.lastChunk = operatorListChunk.lastChunk;

      for (var _i = 0; _i < intentState.renderTasks.length; _i++) {
        intentState.renderTasks[_i].operatorListChanged();
      }

      if (operatorListChunk.lastChunk) {
        this._tryCleanup();
      }
    }
  }, {
    key: "pageNumber",
    get: function get() {
      return this.pageIndex + 1;
    }
  }, {
    key: "rotate",
    get: function get() {
      return this._pageInfo.rotate;
    }
  }, {
    key: "ref",
    get: function get() {
      return this._pageInfo.ref;
    }
  }, {
    key: "userUnit",
    get: function get() {
      return this._pageInfo.userUnit;
    }
  }, {
    key: "view",
    get: function get() {
      return this._pageInfo.view;
    }
  }, {
    key: "stats",
    get: function get() {
      return this._stats instanceof _display_utils.StatTimer ? this._stats : null;
    }
  }]);

  return PDFPageProxy;
}();

exports.PDFPageProxy = PDFPageProxy;

var LoopbackPort =
/*#__PURE__*/
function () {
  function LoopbackPort() {
    var defer = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;

    _classCallCheck(this, LoopbackPort);

    this._listeners = [];
    this._defer = defer;
    this._deferred = Promise.resolve(undefined);
  }

  _createClass(LoopbackPort, [{
    key: "postMessage",
    value: function postMessage(obj, transfers) {
      var _this6 = this;

      function cloneValue(value) {
        if (_typeof(value) !== 'object' || value === null) {
          return value;
        }

        if (cloned.has(value)) {
          return cloned.get(value);
        }

        var buffer, result;

        if ((buffer = value.buffer) && (0, _util.isArrayBuffer)(buffer)) {
          var transferable = transfers && transfers.includes(buffer);

          if (value === buffer) {
            result = value;
          } else if (transferable) {
            result = new value.constructor(buffer, value.byteOffset, value.byteLength);
          } else {
            result = new value.constructor(value);
          }

          cloned.set(value, result);
          return result;
        }

        result = Array.isArray(value) ? [] : {};
        cloned.set(value, result);

        for (var i in value) {
          var desc = void 0,
              p = value;

          while (!(desc = Object.getOwnPropertyDescriptor(p, i))) {
            p = Object.getPrototypeOf(p);
          }

          if (typeof desc.value === 'undefined' || typeof desc.value === 'function') {
            continue;
          }

          result[i] = cloneValue(desc.value);
        }

        return result;
      }

      if (!this._defer) {
        this._listeners.forEach(function (listener) {
          listener.call(this, {
            data: obj
          });
        }, this);

        return;
      }

      var cloned = new WeakMap();
      var e = {
        data: cloneValue(obj)
      };

      this._deferred.then(function () {
        _this6._listeners.forEach(function (listener) {
          listener.call(this, e);
        }, _this6);
      });
    }
  }, {
    key: "addEventListener",
    value: function addEventListener(name, listener) {
      this._listeners.push(listener);
    }
  }, {
    key: "removeEventListener",
    value: function removeEventListener(name, listener) {
      var i = this._listeners.indexOf(listener);

      this._listeners.splice(i, 1);
    }
  }, {
    key: "terminate",
    value: function terminate() {
      this._listeners.length = 0;
    }
  }]);

  return LoopbackPort;
}();

exports.LoopbackPort = LoopbackPort;

var PDFWorker = function PDFWorkerClosure() {
  var pdfWorkerPorts = new WeakMap();
  var nextFakeWorkerId = 0;
  var fakeWorkerFilesLoadedCapability;

  function _getWorkerSrc() {
    if (_worker_options.GlobalWorkerOptions.workerSrc) {
      return _worker_options.GlobalWorkerOptions.workerSrc;
    }

    if (typeof fallbackWorkerSrc !== 'undefined') {
      return fallbackWorkerSrc;
    }

    throw new Error('No "GlobalWorkerOptions.workerSrc" specified.');
  }

  function getMainThreadWorkerMessageHandler() {
    try {
      if (typeof window !== 'undefined') {
        return window.pdfjsWorker && window.pdfjsWorker.WorkerMessageHandler;
      }
    } catch (ex) {}

    return null;
  }

  function setupFakeWorkerGlobal() {
    if (fakeWorkerFilesLoadedCapability) {
      return fakeWorkerFilesLoadedCapability.promise;
    }

    fakeWorkerFilesLoadedCapability = (0, _util.createPromiseCapability)();
    var mainWorkerMessageHandler = getMainThreadWorkerMessageHandler();

    if (mainWorkerMessageHandler) {
      fakeWorkerFilesLoadedCapability.resolve(mainWorkerMessageHandler);
      return fakeWorkerFilesLoadedCapability.promise;
    }

    var loader = fakeWorkerFilesLoader || function () {
      return (0, _display_utils.loadScript)(_getWorkerSrc()).then(function () {
        return window.pdfjsWorker.WorkerMessageHandler;
      });
    };

    loader().then(fakeWorkerFilesLoadedCapability.resolve, fakeWorkerFilesLoadedCapability.reject);
    return fakeWorkerFilesLoadedCapability.promise;
  }

  function createCDNWrapper(url) {
    var wrapper = 'importScripts(\'' + url + '\');';
    return _util.URL.createObjectURL(new Blob([wrapper]));
  }

  var PDFWorker =
  /*#__PURE__*/
  function () {
    function PDFWorker() {
      var _ref6 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
          _ref6$name = _ref6.name,
          name = _ref6$name === void 0 ? null : _ref6$name,
          _ref6$port = _ref6.port,
          port = _ref6$port === void 0 ? null : _ref6$port,
          _ref6$postMessageTran = _ref6.postMessageTransfers,
          postMessageTransfers = _ref6$postMessageTran === void 0 ? true : _ref6$postMessageTran,
          _ref6$verbosity = _ref6.verbosity,
          verbosity = _ref6$verbosity === void 0 ? (0, _util.getVerbosityLevel)() : _ref6$verbosity;

      _classCallCheck(this, PDFWorker);

      if (port && pdfWorkerPorts.has(port)) {
        throw new Error('Cannot use more than one PDFWorker per port');
      }

      this.name = name;
      this.destroyed = false;
      this.postMessageTransfers = postMessageTransfers !== false;
      this.verbosity = verbosity;
      this._readyCapability = (0, _util.createPromiseCapability)();
      this._port = null;
      this._webWorker = null;
      this._messageHandler = null;

      if (port) {
        pdfWorkerPorts.set(port, this);

        this._initializeFromPort(port);

        return;
      }

      this._initialize();
    }

    _createClass(PDFWorker, [{
      key: "_initializeFromPort",
      value: function _initializeFromPort(port) {
        this._port = port;
        this._messageHandler = new _message_handler.MessageHandler('main', 'worker', port);

        this._messageHandler.on('ready', function () {});

        this._readyCapability.resolve();
      }
    }, {
      key: "_initialize",
      value: function _initialize() {
        var _this7 = this;

        if (typeof Worker !== 'undefined' && !isWorkerDisabled && !getMainThreadWorkerMessageHandler()) {
          var workerSrc = _getWorkerSrc();

          try {
            if (!(0, _util.isSameOrigin)(window.location.href, workerSrc)) {
              workerSrc = createCDNWrapper(new _util.URL(workerSrc, window.location).href);
            }

            var worker = new Worker(workerSrc);
            var messageHandler = new _message_handler.MessageHandler('main', 'worker', worker);

            var terminateEarly = function terminateEarly() {
              worker.removeEventListener('error', onWorkerError);
              messageHandler.destroy();
              worker.terminate();

              if (_this7.destroyed) {
                _this7._readyCapability.reject(new Error('Worker was destroyed'));
              } else {
                _this7._setupFakeWorker();
              }
            };

            var onWorkerError = function onWorkerError() {
              if (!_this7._webWorker) {
                terminateEarly();
              }
            };

            worker.addEventListener('error', onWorkerError);
            messageHandler.on('test', function (data) {
              worker.removeEventListener('error', onWorkerError);

              if (_this7.destroyed) {
                terminateEarly();
                return;
              }

              if (data && data.supportTypedArray) {
                _this7._messageHandler = messageHandler;
                _this7._port = worker;
                _this7._webWorker = worker;

                if (!data.supportTransfers) {
                  _this7.postMessageTransfers = false;
                }

                _this7._readyCapability.resolve();

                messageHandler.send('configure', {
                  verbosity: _this7.verbosity
                });
              } else {
                _this7._setupFakeWorker();

                messageHandler.destroy();
                worker.terminate();
              }
            });
            messageHandler.on('ready', function (data) {
              worker.removeEventListener('error', onWorkerError);

              if (_this7.destroyed) {
                terminateEarly();
                return;
              }

              try {
                sendTest();
              } catch (e) {
                _this7._setupFakeWorker();
              }
            });

            var sendTest = function sendTest() {
              var testObj = new Uint8Array([_this7.postMessageTransfers ? 255 : 0]);

              try {
                messageHandler.send('test', testObj, [testObj.buffer]);
              } catch (ex) {
                (0, _util.info)('Cannot use postMessage transfers');
                testObj[0] = 0;
                messageHandler.send('test', testObj);
              }
            };

            sendTest();
            return;
          } catch (e) {
            (0, _util.info)('The worker has been disabled.');
          }
        }

        this._setupFakeWorker();
      }
    }, {
      key: "_setupFakeWorker",
      value: function _setupFakeWorker() {
        var _this8 = this;

        if (!isWorkerDisabled) {
          (0, _util.warn)('Setting up fake worker.');
          isWorkerDisabled = true;
        }

        setupFakeWorkerGlobal().then(function (WorkerMessageHandler) {
          if (_this8.destroyed) {
            _this8._readyCapability.reject(new Error('Worker was destroyed'));

            return;
          }

          var port = new LoopbackPort();
          _this8._port = port;
          var id = 'fake' + nextFakeWorkerId++;
          var workerHandler = new _message_handler.MessageHandler(id + '_worker', id, port);
          WorkerMessageHandler.setup(workerHandler, port);
          var messageHandler = new _message_handler.MessageHandler(id, id + '_worker', port);
          _this8._messageHandler = messageHandler;

          _this8._readyCapability.resolve();
        })["catch"](function (reason) {
          _this8._readyCapability.reject(new Error("Setting up fake worker failed: \"".concat(reason.message, "\".")));
        });
      }
    }, {
      key: "destroy",
      value: function destroy() {
        this.destroyed = true;

        if (this._webWorker) {
          this._webWorker.terminate();

          this._webWorker = null;
        }

        pdfWorkerPorts["delete"](this._port);
        this._port = null;

        if (this._messageHandler) {
          this._messageHandler.destroy();

          this._messageHandler = null;
        }
      }
    }, {
      key: "promise",
      get: function get() {
        return this._readyCapability.promise;
      }
    }, {
      key: "port",
      get: function get() {
        return this._port;
      }
    }, {
      key: "messageHandler",
      get: function get() {
        return this._messageHandler;
      }
    }], [{
      key: "fromPort",
      value: function fromPort(params) {
        if (!params || !params.port) {
          throw new Error('PDFWorker.fromPort - invalid method signature.');
        }

        if (pdfWorkerPorts.has(params.port)) {
          return pdfWorkerPorts.get(params.port);
        }

        return new PDFWorker(params);
      }
    }, {
      key: "getWorkerSrc",
      value: function getWorkerSrc() {
        return _getWorkerSrc();
      }
    }]);

    return PDFWorker;
  }();

  return PDFWorker;
}();

exports.PDFWorker = PDFWorker;

var WorkerTransport =
/*#__PURE__*/
function () {
  function WorkerTransport(messageHandler, loadingTask, networkStream, params) {
    _classCallCheck(this, WorkerTransport);

    this.messageHandler = messageHandler;
    this.loadingTask = loadingTask;
    this.commonObjs = new PDFObjects();
    this.fontLoader = new _font_loader.FontLoader({
      docId: loadingTask.docId,
      onUnsupportedFeature: this._onUnsupportedFeature.bind(this)
    });
    this._params = params;
    this.CMapReaderFactory = new params.CMapReaderFactory({
      baseUrl: params.cMapUrl,
      isCompressed: params.cMapPacked
    });
    this.destroyed = false;
    this.destroyCapability = null;
    this._passwordCapability = null;
    this._networkStream = networkStream;
    this._fullReader = null;
    this._lastProgress = null;
    this.pageCache = [];
    this.pagePromises = [];
    this.downloadInfoCapability = (0, _util.createPromiseCapability)();
    this.setupMessageHandler();
  }

  _createClass(WorkerTransport, [{
    key: "destroy",
    value: function destroy() {
      var _this9 = this;

      if (this.destroyCapability) {
        return this.destroyCapability.promise;
      }

      this.destroyed = true;
      this.destroyCapability = (0, _util.createPromiseCapability)();

      if (this._passwordCapability) {
        this._passwordCapability.reject(new Error('Worker was destroyed during onPassword callback'));
      }

      var waitOn = [];
      this.pageCache.forEach(function (page) {
        if (page) {
          waitOn.push(page._destroy());
        }
      });
      this.pageCache.length = 0;
      this.pagePromises.length = 0;
      var terminated = this.messageHandler.sendWithPromise('Terminate', null);
      waitOn.push(terminated);
      Promise.all(waitOn).then(function () {
        _this9.fontLoader.clear();

        if (_this9._networkStream) {
          _this9._networkStream.cancelAllRequests(new _util.AbortException('Worker was terminated.'));
        }

        if (_this9.messageHandler) {
          _this9.messageHandler.destroy();

          _this9.messageHandler = null;
        }

        _this9.destroyCapability.resolve();
      }, this.destroyCapability.reject);
      return this.destroyCapability.promise;
    }
  }, {
    key: "setupMessageHandler",
    value: function setupMessageHandler() {
      var messageHandler = this.messageHandler,
          loadingTask = this.loadingTask;
      messageHandler.on('GetReader', function (data, sink) {
        var _this10 = this;

        (0, _util.assert)(this._networkStream);
        this._fullReader = this._networkStream.getFullReader();

        this._fullReader.onProgress = function (evt) {
          _this10._lastProgress = {
            loaded: evt.loaded,
            total: evt.total
          };
        };

        sink.onPull = function () {
          _this10._fullReader.read().then(function (_ref7) {
            var value = _ref7.value,
                done = _ref7.done;

            if (done) {
              sink.close();
              return;
            }

            (0, _util.assert)((0, _util.isArrayBuffer)(value));
            sink.enqueue(new Uint8Array(value), 1, [value]);
          })["catch"](function (reason) {
            sink.error(reason);
          });
        };

        sink.onCancel = function (reason) {
          _this10._fullReader.cancel(reason);
        };
      }, this);
      messageHandler.on('ReaderHeadersReady', function (data) {
        var _this11 = this;

        var headersCapability = (0, _util.createPromiseCapability)();
        var fullReader = this._fullReader;
        fullReader.headersReady.then(function () {
          if (!fullReader.isStreamingSupported || !fullReader.isRangeSupported) {
            if (_this11._lastProgress && loadingTask.onProgress) {
              loadingTask.onProgress(_this11._lastProgress);
            }

            fullReader.onProgress = function (evt) {
              if (loadingTask.onProgress) {
                loadingTask.onProgress({
                  loaded: evt.loaded,
                  total: evt.total
                });
              }
            };
          }

          headersCapability.resolve({
            isStreamingSupported: fullReader.isStreamingSupported,
            isRangeSupported: fullReader.isRangeSupported,
            contentLength: fullReader.contentLength
          });
        }, headersCapability.reject);
        return headersCapability.promise;
      }, this);
      messageHandler.on('GetRangeReader', function (data, sink) {
        (0, _util.assert)(this._networkStream);

        var rangeReader = this._networkStream.getRangeReader(data.begin, data.end);

        if (!rangeReader) {
          sink.close();
          return;
        }

        sink.onPull = function () {
          rangeReader.read().then(function (_ref8) {
            var value = _ref8.value,
                done = _ref8.done;

            if (done) {
              sink.close();
              return;
            }

            (0, _util.assert)((0, _util.isArrayBuffer)(value));
            sink.enqueue(new Uint8Array(value), 1, [value]);
          })["catch"](function (reason) {
            sink.error(reason);
          });
        };

        sink.onCancel = function (reason) {
          rangeReader.cancel(reason);
        };
      }, this);
      messageHandler.on('GetDoc', function (_ref9) {
        var pdfInfo = _ref9.pdfInfo;
        this._numPages = pdfInfo.numPages;

        loadingTask._capability.resolve(new PDFDocumentProxy(pdfInfo, this));
      }, this);
      messageHandler.on('PasswordRequest', function (exception) {
        var _this12 = this;

        this._passwordCapability = (0, _util.createPromiseCapability)();

        if (loadingTask.onPassword) {
          var updatePassword = function updatePassword(password) {
            _this12._passwordCapability.resolve({
              password: password
            });
          };

          try {
            loadingTask.onPassword(updatePassword, exception.code);
          } catch (ex) {
            this._passwordCapability.reject(ex);
          }
        } else {
          this._passwordCapability.reject(new _util.PasswordException(exception.message, exception.code));
        }

        return this._passwordCapability.promise;
      }, this);
      messageHandler.on('PasswordException', function (exception) {
        loadingTask._capability.reject(new _util.PasswordException(exception.message, exception.code));
      }, this);
      messageHandler.on('InvalidPDF', function (exception) {
        loadingTask._capability.reject(new _util.InvalidPDFException(exception.message));
      }, this);
      messageHandler.on('MissingPDF', function (exception) {
        loadingTask._capability.reject(new _util.MissingPDFException(exception.message));
      }, this);
      messageHandler.on('UnexpectedResponse', function (exception) {
        loadingTask._capability.reject(new _util.UnexpectedResponseException(exception.message, exception.status));
      }, this);
      messageHandler.on('UnknownError', function (exception) {
        loadingTask._capability.reject(new _util.UnknownErrorException(exception.message, exception.details));
      }, this);
      messageHandler.on('DataLoaded', function (data) {
        if (loadingTask.onProgress) {
          loadingTask.onProgress({
            loaded: data.length,
            total: data.length
          });
        }

        this.downloadInfoCapability.resolve(data);
      }, this);
      messageHandler.on('StartRenderPage', function (data) {
        if (this.destroyed) {
          return;
        }

        var page = this.pageCache[data.pageIndex];

        page._stats.timeEnd('Page Request');

        page._startRenderPage(data.transparency, data.intent);
      }, this);
      messageHandler.on('RenderPageChunk', function (data) {
        if (this.destroyed) {
          return;
        }

        var page = this.pageCache[data.pageIndex];

        page._renderPageChunk(data.operatorList, data.intent);
      }, this);
      messageHandler.on('commonobj', function (data) {
        var _this13 = this;

        if (this.destroyed) {
          return;
        }

        var _data = _slicedToArray(data, 3),
            id = _data[0],
            type = _data[1],
            exportedData = _data[2];

        if (this.commonObjs.has(id)) {
          return;
        }

        switch (type) {
          case 'Font':
            var params = this._params;

            if ('error' in exportedData) {
              var exportedError = exportedData.error;
              (0, _util.warn)("Error during font loading: ".concat(exportedError));
              this.commonObjs.resolve(id, exportedError);
              break;
            }

            var fontRegistry = null;

            if (params.pdfBug && _global_scope["default"].FontInspector && _global_scope["default"].FontInspector.enabled) {
              fontRegistry = {
                registerFont: function registerFont(font, url) {
                  _global_scope["default"]['FontInspector'].fontAdded(font, url);
                }
              };
            }

            var font = new _font_loader.FontFaceObject(exportedData, {
              isEvalSupported: params.isEvalSupported,
              disableFontFace: params.disableFontFace,
              ignoreErrors: params.ignoreErrors,
              onUnsupportedFeature: this._onUnsupportedFeature.bind(this),
              fontRegistry: fontRegistry
            });
            this.fontLoader.bind(font).then(function () {
              _this13.commonObjs.resolve(id, font);
            }, function (reason) {
              messageHandler.sendWithPromise('FontFallback', {
                id: id
              })["finally"](function () {
                _this13.commonObjs.resolve(id, font);
              });
            });
            break;

          case 'FontPath':
          case 'FontType3Res':
            this.commonObjs.resolve(id, exportedData);
            break;

          default:
            throw new Error("Got unknown common object type ".concat(type));
        }
      }, this);
      messageHandler.on('obj', function (data) {
        if (this.destroyed) {
          return undefined;
        }

        var _data2 = _slicedToArray(data, 4),
            id = _data2[0],
            pageIndex = _data2[1],
            type = _data2[2],
            imageData = _data2[3];

        var pageProxy = this.pageCache[pageIndex];

        if (pageProxy.objs.has(id)) {
          return undefined;
        }

        switch (type) {
          case 'JpegStream':
            return new Promise(function (resolve, reject) {
              var img = new Image();

              img.onload = function () {
                resolve(img);
              };

              img.onerror = function () {
                reject(new Error('Error during JPEG image loading'));
                (0, _display_utils.releaseImageResources)(img);
              };

              img.src = imageData;
            }).then(function (img) {
              pageProxy.objs.resolve(id, img);
            });

          case 'Image':
            pageProxy.objs.resolve(id, imageData);
            var MAX_IMAGE_SIZE_TO_STORE = 8000000;

            if (imageData && 'data' in imageData && imageData.data.length > MAX_IMAGE_SIZE_TO_STORE) {
              pageProxy.cleanupAfterRender = true;
            }

            break;

          default:
            throw new Error("Got unknown object type ".concat(type));
        }

        return undefined;
      }, this);
      messageHandler.on('DocProgress', function (data) {
        if (this.destroyed) {
          return;
        }

        if (loadingTask.onProgress) {
          loadingTask.onProgress({
            loaded: data.loaded,
            total: data.total
          });
        }
      }, this);
      messageHandler.on('PageError', function (data) {
        if (this.destroyed) {
          return;
        }

        var page = this.pageCache[data.pageIndex];
        var intentState = page.intentStates[data.intent];

        if (intentState.operatorList) {
          intentState.operatorList.lastChunk = true;

          for (var i = 0; i < intentState.renderTasks.length; i++) {
            intentState.renderTasks[i].operatorListChanged();
          }

          page._tryCleanup();
        }

        if (intentState.displayReadyCapability) {
          intentState.displayReadyCapability.reject(new Error(data.error));
        } else if (intentState.opListReadCapability) {
          intentState.opListReadCapability.reject(new Error(data.error));
        } else {
          throw new Error(data.error);
        }
      }, this);
      messageHandler.on('UnsupportedFeature', this._onUnsupportedFeature, this);
      messageHandler.on('JpegDecode', function (data) {
        if (this.destroyed) {
          return Promise.reject(new Error('Worker was destroyed'));
        }

        if (typeof document === 'undefined') {
          return Promise.reject(new Error('"document" is not defined.'));
        }

        var _data3 = _slicedToArray(data, 2),
            imageUrl = _data3[0],
            components = _data3[1];

        if (components !== 3 && components !== 1) {
          return Promise.reject(new Error('Only 3 components or 1 component can be returned'));
        }

        return new Promise(function (resolve, reject) {
          var img = new Image();

          img.onload = function () {
            var width = img.width,
                height = img.height;
            var size = width * height;
            var rgbaLength = size * 4;
            var buf = new Uint8ClampedArray(size * components);
            var tmpCanvas = document.createElement('canvas');
            tmpCanvas.width = width;
            tmpCanvas.height = height;
            var tmpCtx = tmpCanvas.getContext('2d');
            tmpCtx.drawImage(img, 0, 0);
            var data = tmpCtx.getImageData(0, 0, width, height).data;

            if (components === 3) {
              for (var i = 0, j = 0; i < rgbaLength; i += 4, j += 3) {
                buf[j] = data[i];
                buf[j + 1] = data[i + 1];
                buf[j + 2] = data[i + 2];
              }
            } else if (components === 1) {
              for (var _i2 = 0, _j = 0; _i2 < rgbaLength; _i2 += 4, _j++) {
                buf[_j] = data[_i2];
              }
            }

            resolve({
              data: buf,
              width: width,
              height: height
            });
            (0, _display_utils.releaseImageResources)(img);
            tmpCanvas.width = 0;
            tmpCanvas.height = 0;
            tmpCanvas = null;
            tmpCtx = null;
          };

          img.onerror = function () {
            reject(new Error('JpegDecode failed to load image'));
            (0, _display_utils.releaseImageResources)(img);
          };

          img.src = imageUrl;
        });
      }, this);
      messageHandler.on('FetchBuiltInCMap', function (data) {
        if (this.destroyed) {
          return Promise.reject(new Error('Worker was destroyed'));
        }

        return this.CMapReaderFactory.fetch({
          name: data.name
        });
      }, this);
    }
  }, {
    key: "_onUnsupportedFeature",
    value: function _onUnsupportedFeature(_ref10) {
      var featureId = _ref10.featureId;

      if (this.destroyed) {
        return;
      }

      if (this.loadingTask.onUnsupportedFeature) {
        this.loadingTask.onUnsupportedFeature(featureId);
      }
    }
  }, {
    key: "getData",
    value: function getData() {
      return this.messageHandler.sendWithPromise('GetData', null);
    }
  }, {
    key: "getPage",
    value: function getPage(pageNumber) {
      var _this14 = this;

      if (!Number.isInteger(pageNumber) || pageNumber <= 0 || pageNumber > this._numPages) {
        return Promise.reject(new Error('Invalid page request'));
      }

      var pageIndex = pageNumber - 1;

      if (pageIndex in this.pagePromises) {
        return this.pagePromises[pageIndex];
      }

      var promise = this.messageHandler.sendWithPromise('GetPage', {
        pageIndex: pageIndex
      }).then(function (pageInfo) {
        if (_this14.destroyed) {
          throw new Error('Transport destroyed');
        }

        var page = new PDFPageProxy(pageIndex, pageInfo, _this14, _this14._params.pdfBug);
        _this14.pageCache[pageIndex] = page;
        return page;
      });
      this.pagePromises[pageIndex] = promise;
      return promise;
    }
  }, {
    key: "getPageIndex",
    value: function getPageIndex(ref) {
      return this.messageHandler.sendWithPromise('GetPageIndex', {
        ref: ref
      })["catch"](function (reason) {
        return Promise.reject(new Error(reason));
      });
    }
  }, {
    key: "getAnnotations",
    value: function getAnnotations(pageIndex, intent) {
      return this.messageHandler.sendWithPromise('GetAnnotations', {
        pageIndex: pageIndex,
        intent: intent
      });
    }
  }, {
    key: "getDestinations",
    value: function getDestinations() {
      return this.messageHandler.sendWithPromise('GetDestinations', null);
    }
  }, {
    key: "getDestination",
    value: function getDestination(id) {
      if (typeof id !== 'string') {
        return Promise.reject(new Error('Invalid destination request.'));
      }

      return this.messageHandler.sendWithPromise('GetDestination', {
        id: id
      });
    }
  }, {
    key: "getPageLabels",
    value: function getPageLabels() {
      return this.messageHandler.sendWithPromise('GetPageLabels', null);
    }
  }, {
    key: "getPageLayout",
    value: function getPageLayout() {
      return this.messageHandler.sendWithPromise('GetPageLayout', null);
    }
  }, {
    key: "getPageMode",
    value: function getPageMode() {
      return this.messageHandler.sendWithPromise('GetPageMode', null);
    }
  }, {
    key: "getViewerPreferences",
    value: function getViewerPreferences() {
      return this.messageHandler.sendWithPromise('GetViewerPreferences', null);
    }
  }, {
    key: "getOpenActionDestination",
    value: function getOpenActionDestination() {
      return this.messageHandler.sendWithPromise('GetOpenActionDestination', null);
    }
  }, {
    key: "getAttachments",
    value: function getAttachments() {
      return this.messageHandler.sendWithPromise('GetAttachments', null);
    }
  }, {
    key: "getJavaScript",
    value: function getJavaScript() {
      return this.messageHandler.sendWithPromise('GetJavaScript', null);
    }
  }, {
    key: "getOutline",
    value: function getOutline() {
      return this.messageHandler.sendWithPromise('GetOutline', null);
    }
  }, {
    key: "getPermissions",
    value: function getPermissions() {
      return this.messageHandler.sendWithPromise('GetPermissions', null);
    }
  }, {
    key: "getMetadata",
    value: function getMetadata() {
      var _this15 = this;

      return this.messageHandler.sendWithPromise('GetMetadata', null).then(function (results) {
        return {
          info: results[0],
          metadata: results[1] ? new _metadata.Metadata(results[1]) : null,
          contentDispositionFilename: _this15._fullReader ? _this15._fullReader.filename : null
        };
      });
    }
  }, {
    key: "getStats",
    value: function getStats() {
      return this.messageHandler.sendWithPromise('GetStats', null);
    }
  }, {
    key: "startCleanup",
    value: function startCleanup() {
      var _this16 = this;

      this.messageHandler.sendWithPromise('Cleanup', null).then(function () {
        for (var i = 0, ii = _this16.pageCache.length; i < ii; i++) {
          var page = _this16.pageCache[i];

          if (page) {
            page.cleanup();
          }
        }

        _this16.commonObjs.clear();

        _this16.fontLoader.clear();
      });
    }
  }, {
    key: "loadingParams",
    get: function get() {
      var params = this._params;
      return (0, _util.shadow)(this, 'loadingParams', {
        disableAutoFetch: params.disableAutoFetch,
        disableCreateObjectURL: params.disableCreateObjectURL,
        disableFontFace: params.disableFontFace,
        nativeImageDecoderSupport: params.nativeImageDecoderSupport
      });
    }
  }]);

  return WorkerTransport;
}();

var PDFObjects =
/*#__PURE__*/
function () {
  function PDFObjects() {
    _classCallCheck(this, PDFObjects);

    this._objs = Object.create(null);
  }

  _createClass(PDFObjects, [{
    key: "_ensureObj",
    value: function _ensureObj(objId) {
      if (this._objs[objId]) {
        return this._objs[objId];
      }

      return this._objs[objId] = {
        capability: (0, _util.createPromiseCapability)(),
        data: null,
        resolved: false
      };
    }
  }, {
    key: "get",
    value: function get(objId) {
      var callback = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;

      if (callback) {
        this._ensureObj(objId).capability.promise.then(callback);

        return null;
      }

      var obj = this._objs[objId];

      if (!obj || !obj.resolved) {
        throw new Error("Requesting object that isn't resolved yet ".concat(objId, "."));
      }

      return obj.data;
    }
  }, {
    key: "has",
    value: function has(objId) {
      var obj = this._objs[objId];
      return obj ? obj.resolved : false;
    }
  }, {
    key: "resolve",
    value: function resolve(objId, data) {
      var obj = this._ensureObj(objId);

      obj.resolved = true;
      obj.data = data;
      obj.capability.resolve(data);
    }
  }, {
    key: "clear",
    value: function clear() {
      for (var objId in this._objs) {
        var data = this._objs[objId].data;

        if (typeof Image !== 'undefined' && data instanceof Image) {
          (0, _display_utils.releaseImageResources)(data);
        }
      }

      this._objs = Object.create(null);
    }
  }]);

  return PDFObjects;
}();

var RenderTask =
/*#__PURE__*/
function () {
  function RenderTask(internalRenderTask) {
    _classCallCheck(this, RenderTask);

    this._internalRenderTask = internalRenderTask;
    this.onContinue = null;
  }

  _createClass(RenderTask, [{
    key: "cancel",
    value: function cancel() {
      this._internalRenderTask.cancel();
    }
  }, {
    key: "then",
    value: function then(onFulfilled, onRejected) {
      (0, _display_utils.deprecated)('RenderTask.then method, use the `promise` getter instead.');
      return this.promise.then.apply(this.promise, arguments);
    }
  }, {
    key: "promise",
    get: function get() {
      return this._internalRenderTask.capability.promise;
    }
  }]);

  return RenderTask;
}();

var InternalRenderTask = function InternalRenderTaskClosure() {
  var canvasInRendering = new WeakSet();

  var InternalRenderTask =
  /*#__PURE__*/
  function () {
    function InternalRenderTask(_ref11) {
      var callback = _ref11.callback,
          params = _ref11.params,
          objs = _ref11.objs,
          commonObjs = _ref11.commonObjs,
          operatorList = _ref11.operatorList,
          pageNumber = _ref11.pageNumber,
          canvasFactory = _ref11.canvasFactory,
          webGLContext = _ref11.webGLContext,
          _ref11$useRequestAnim = _ref11.useRequestAnimationFrame,
          useRequestAnimationFrame = _ref11$useRequestAnim === void 0 ? false : _ref11$useRequestAnim,
          _ref11$pdfBug = _ref11.pdfBug,
          pdfBug = _ref11$pdfBug === void 0 ? false : _ref11$pdfBug;

      _classCallCheck(this, InternalRenderTask);

      this.callback = callback;
      this.params = params;
      this.objs = objs;
      this.commonObjs = commonObjs;
      this.operatorListIdx = null;
      this.operatorList = operatorList;
      this.pageNumber = pageNumber;
      this.canvasFactory = canvasFactory;
      this.webGLContext = webGLContext;
      this._pdfBug = pdfBug;
      this.running = false;
      this.graphicsReadyCallback = null;
      this.graphicsReady = false;
      this._useRequestAnimationFrame = useRequestAnimationFrame === true && typeof window !== 'undefined';
      this.cancelled = false;
      this.capability = (0, _util.createPromiseCapability)();
      this.task = new RenderTask(this);
      this._continueBound = this._continue.bind(this);
      this._scheduleNextBound = this._scheduleNext.bind(this);
      this._nextBound = this._next.bind(this);
      this._canvas = params.canvasContext.canvas;
    }

    _createClass(InternalRenderTask, [{
      key: "initializeGraphics",
      value: function initializeGraphics() {
        var transparency = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

        if (this.cancelled) {
          return;
        }

        if (this._canvas) {
          if (canvasInRendering.has(this._canvas)) {
            throw new Error('Cannot use the same canvas during multiple render() operations. ' + 'Use different canvas or ensure previous operations were ' + 'cancelled or completed.');
          }

          canvasInRendering.add(this._canvas);
        }

        if (this._pdfBug && _global_scope["default"].StepperManager && _global_scope["default"].StepperManager.enabled) {
          this.stepper = _global_scope["default"].StepperManager.create(this.pageNumber - 1);
          this.stepper.init(this.operatorList);
          this.stepper.nextBreakPoint = this.stepper.getNextBreakPoint();
        }

        var _this$params = this.params,
            canvasContext = _this$params.canvasContext,
            viewport = _this$params.viewport,
            transform = _this$params.transform,
            imageLayer = _this$params.imageLayer,
            background = _this$params.background;
        this.gfx = new _canvas.CanvasGraphics(canvasContext, this.commonObjs, this.objs, this.canvasFactory, this.webGLContext, imageLayer);
        this.gfx.beginDrawing({
          transform: transform,
          viewport: viewport,
          transparency: transparency,
          background: background
        });
        this.operatorListIdx = 0;
        this.graphicsReady = true;

        if (this.graphicsReadyCallback) {
          this.graphicsReadyCallback();
        }
      }
    }, {
      key: "cancel",
      value: function cancel() {
        var error = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
        this.running = false;
        this.cancelled = true;

        if (this.gfx) {
          this.gfx.endDrawing();
        }

        if (this._canvas) {
          canvasInRendering["delete"](this._canvas);
        }

        this.callback(error || new _display_utils.RenderingCancelledException("Rendering cancelled, page ".concat(this.pageNumber), 'canvas'));
      }
    }, {
      key: "operatorListChanged",
      value: function operatorListChanged() {
        if (!this.graphicsReady) {
          if (!this.graphicsReadyCallback) {
            this.graphicsReadyCallback = this._continueBound;
          }

          return;
        }

        if (this.stepper) {
          this.stepper.updateOperatorList(this.operatorList);
        }

        if (this.running) {
          return;
        }

        this._continue();
      }
    }, {
      key: "_continue",
      value: function _continue() {
        this.running = true;

        if (this.cancelled) {
          return;
        }

        if (this.task.onContinue) {
          this.task.onContinue(this._scheduleNextBound);
        } else {
          this._scheduleNext();
        }
      }
    }, {
      key: "_scheduleNext",
      value: function _scheduleNext() {
        var _this17 = this;

        if (this._useRequestAnimationFrame) {
          window.requestAnimationFrame(function () {
            _this17._nextBound()["catch"](_this17.cancel.bind(_this17));
          });
        } else {
          Promise.resolve().then(this._nextBound)["catch"](this.cancel.bind(this));
        }
      }
    }, {
      key: "_next",
      value: function () {
        var _next2 = _asyncToGenerator(
        /*#__PURE__*/
        _regenerator["default"].mark(function _callee() {
          return _regenerator["default"].wrap(function _callee$(_context) {
            while (1) {
              switch (_context.prev = _context.next) {
                case 0:
                  if (!this.cancelled) {
                    _context.next = 2;
                    break;
                  }

                  return _context.abrupt("return");

                case 2:
                  this.operatorListIdx = this.gfx.executeOperatorList(this.operatorList, this.operatorListIdx, this._continueBound, this.stepper);

                  if (this.operatorListIdx === this.operatorList.argsArray.length) {
                    this.running = false;

                    if (this.operatorList.lastChunk) {
                      this.gfx.endDrawing();

                      if (this._canvas) {
                        canvasInRendering["delete"](this._canvas);
                      }

                      this.callback();
                    }
                  }

                case 4:
                case "end":
                  return _context.stop();
              }
            }
          }, _callee, this);
        }));

        function _next() {
          return _next2.apply(this, arguments);
        }

        return _next;
      }()
    }]);

    return InternalRenderTask;
  }();

  return InternalRenderTask;
}();

var version = '2.3.65';
exports.version = version;
var build = '6c05a765';
exports.build = build;

/***/ }),
/* 148 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = __w_pdfjs_require__(149);

/***/ }),
/* 149 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";
/* WEBPACK VAR INJECTION */(function(module) {

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

var runtime = function (exports) {
  "use strict";

  var Op = Object.prototype;
  var hasOwn = Op.hasOwnProperty;
  var undefined;
  var $Symbol = typeof Symbol === "function" ? Symbol : {};
  var iteratorSymbol = $Symbol.iterator || "@@iterator";
  var asyncIteratorSymbol = $Symbol.asyncIterator || "@@asyncIterator";
  var toStringTagSymbol = $Symbol.toStringTag || "@@toStringTag";

  function wrap(innerFn, outerFn, self, tryLocsList) {
    var protoGenerator = outerFn && outerFn.prototype instanceof Generator ? outerFn : Generator;
    var generator = Object.create(protoGenerator.prototype);
    var context = new Context(tryLocsList || []);
    generator._invoke = makeInvokeMethod(innerFn, self, context);
    return generator;
  }

  exports.wrap = wrap;

  function tryCatch(fn, obj, arg) {
    try {
      return {
        type: "normal",
        arg: fn.call(obj, arg)
      };
    } catch (err) {
      return {
        type: "throw",
        arg: err
      };
    }
  }

  var GenStateSuspendedStart = "suspendedStart";
  var GenStateSuspendedYield = "suspendedYield";
  var GenStateExecuting = "executing";
  var GenStateCompleted = "completed";
  var ContinueSentinel = {};

  function Generator() {}

  function GeneratorFunction() {}

  function GeneratorFunctionPrototype() {}

  var IteratorPrototype = {};

  IteratorPrototype[iteratorSymbol] = function () {
    return this;
  };

  var getProto = Object.getPrototypeOf;
  var NativeIteratorPrototype = getProto && getProto(getProto(values([])));

  if (NativeIteratorPrototype && NativeIteratorPrototype !== Op && hasOwn.call(NativeIteratorPrototype, iteratorSymbol)) {
    IteratorPrototype = NativeIteratorPrototype;
  }

  var Gp = GeneratorFunctionPrototype.prototype = Generator.prototype = Object.create(IteratorPrototype);
  GeneratorFunction.prototype = Gp.constructor = GeneratorFunctionPrototype;
  GeneratorFunctionPrototype.constructor = GeneratorFunction;
  GeneratorFunctionPrototype[toStringTagSymbol] = GeneratorFunction.displayName = "GeneratorFunction";

  function defineIteratorMethods(prototype) {
    ["next", "throw", "return"].forEach(function (method) {
      prototype[method] = function (arg) {
        return this._invoke(method, arg);
      };
    });
  }

  exports.isGeneratorFunction = function (genFun) {
    var ctor = typeof genFun === "function" && genFun.constructor;
    return ctor ? ctor === GeneratorFunction || (ctor.displayName || ctor.name) === "GeneratorFunction" : false;
  };

  exports.mark = function (genFun) {
    if (Object.setPrototypeOf) {
      Object.setPrototypeOf(genFun, GeneratorFunctionPrototype);
    } else {
      genFun.__proto__ = GeneratorFunctionPrototype;

      if (!(toStringTagSymbol in genFun)) {
        genFun[toStringTagSymbol] = "GeneratorFunction";
      }
    }

    genFun.prototype = Object.create(Gp);
    return genFun;
  };

  exports.awrap = function (arg) {
    return {
      __await: arg
    };
  };

  function AsyncIterator(generator) {
    function invoke(method, arg, resolve, reject) {
      var record = tryCatch(generator[method], generator, arg);

      if (record.type === "throw") {
        reject(record.arg);
      } else {
        var result = record.arg;
        var value = result.value;

        if (value && _typeof(value) === "object" && hasOwn.call(value, "__await")) {
          return Promise.resolve(value.__await).then(function (value) {
            invoke("next", value, resolve, reject);
          }, function (err) {
            invoke("throw", err, resolve, reject);
          });
        }

        return Promise.resolve(value).then(function (unwrapped) {
          result.value = unwrapped;
          resolve(result);
        }, function (error) {
          return invoke("throw", error, resolve, reject);
        });
      }
    }

    var previousPromise;

    function enqueue(method, arg) {
      function callInvokeWithMethodAndArg() {
        return new Promise(function (resolve, reject) {
          invoke(method, arg, resolve, reject);
        });
      }

      return previousPromise = previousPromise ? previousPromise.then(callInvokeWithMethodAndArg, callInvokeWithMethodAndArg) : callInvokeWithMethodAndArg();
    }

    this._invoke = enqueue;
  }

  defineIteratorMethods(AsyncIterator.prototype);

  AsyncIterator.prototype[asyncIteratorSymbol] = function () {
    return this;
  };

  exports.AsyncIterator = AsyncIterator;

  exports.async = function (innerFn, outerFn, self, tryLocsList) {
    var iter = new AsyncIterator(wrap(innerFn, outerFn, self, tryLocsList));
    return exports.isGeneratorFunction(outerFn) ? iter : iter.next().then(function (result) {
      return result.done ? result.value : iter.next();
    });
  };

  function makeInvokeMethod(innerFn, self, context) {
    var state = GenStateSuspendedStart;
    return function invoke(method, arg) {
      if (state === GenStateExecuting) {
        throw new Error("Generator is already running");
      }

      if (state === GenStateCompleted) {
        if (method === "throw") {
          throw arg;
        }

        return doneResult();
      }

      context.method = method;
      context.arg = arg;

      while (true) {
        var delegate = context.delegate;

        if (delegate) {
          var delegateResult = maybeInvokeDelegate(delegate, context);

          if (delegateResult) {
            if (delegateResult === ContinueSentinel) continue;
            return delegateResult;
          }
        }

        if (context.method === "next") {
          context.sent = context._sent = context.arg;
        } else if (context.method === "throw") {
          if (state === GenStateSuspendedStart) {
            state = GenStateCompleted;
            throw context.arg;
          }

          context.dispatchException(context.arg);
        } else if (context.method === "return") {
          context.abrupt("return", context.arg);
        }

        state = GenStateExecuting;
        var record = tryCatch(innerFn, self, context);

        if (record.type === "normal") {
          state = context.done ? GenStateCompleted : GenStateSuspendedYield;

          if (record.arg === ContinueSentinel) {
            continue;
          }

          return {
            value: record.arg,
            done: context.done
          };
        } else if (record.type === "throw") {
          state = GenStateCompleted;
          context.method = "throw";
          context.arg = record.arg;
        }
      }
    };
  }

  function maybeInvokeDelegate(delegate, context) {
    var method = delegate.iterator[context.method];

    if (method === undefined) {
      context.delegate = null;

      if (context.method === "throw") {
        if (delegate.iterator["return"]) {
          context.method = "return";
          context.arg = undefined;
          maybeInvokeDelegate(delegate, context);

          if (context.method === "throw") {
            return ContinueSentinel;
          }
        }

        context.method = "throw";
        context.arg = new TypeError("The iterator does not provide a 'throw' method");
      }

      return ContinueSentinel;
    }

    var record = tryCatch(method, delegate.iterator, context.arg);

    if (record.type === "throw") {
      context.method = "throw";
      context.arg = record.arg;
      context.delegate = null;
      return ContinueSentinel;
    }

    var info = record.arg;

    if (!info) {
      context.method = "throw";
      context.arg = new TypeError("iterator result is not an object");
      context.delegate = null;
      return ContinueSentinel;
    }

    if (info.done) {
      context[delegate.resultName] = info.value;
      context.next = delegate.nextLoc;

      if (context.method !== "return") {
        context.method = "next";
        context.arg = undefined;
      }
    } else {
      return info;
    }

    context.delegate = null;
    return ContinueSentinel;
  }

  defineIteratorMethods(Gp);
  Gp[toStringTagSymbol] = "Generator";

  Gp[iteratorSymbol] = function () {
    return this;
  };

  Gp.toString = function () {
    return "[object Generator]";
  };

  function pushTryEntry(locs) {
    var entry = {
      tryLoc: locs[0]
    };

    if (1 in locs) {
      entry.catchLoc = locs[1];
    }

    if (2 in locs) {
      entry.finallyLoc = locs[2];
      entry.afterLoc = locs[3];
    }

    this.tryEntries.push(entry);
  }

  function resetTryEntry(entry) {
    var record = entry.completion || {};
    record.type = "normal";
    delete record.arg;
    entry.completion = record;
  }

  function Context(tryLocsList) {
    this.tryEntries = [{
      tryLoc: "root"
    }];
    tryLocsList.forEach(pushTryEntry, this);
    this.reset(true);
  }

  exports.keys = function (object) {
    var keys = [];

    for (var key in object) {
      keys.push(key);
    }

    keys.reverse();
    return function next() {
      while (keys.length) {
        var key = keys.pop();

        if (key in object) {
          next.value = key;
          next.done = false;
          return next;
        }
      }

      next.done = true;
      return next;
    };
  };

  function values(iterable) {
    if (iterable) {
      var iteratorMethod = iterable[iteratorSymbol];

      if (iteratorMethod) {
        return iteratorMethod.call(iterable);
      }

      if (typeof iterable.next === "function") {
        return iterable;
      }

      if (!isNaN(iterable.length)) {
        var i = -1,
            next = function next() {
          while (++i < iterable.length) {
            if (hasOwn.call(iterable, i)) {
              next.value = iterable[i];
              next.done = false;
              return next;
            }
          }

          next.value = undefined;
          next.done = true;
          return next;
        };

        return next.next = next;
      }
    }

    return {
      next: doneResult
    };
  }

  exports.values = values;

  function doneResult() {
    return {
      value: undefined,
      done: true
    };
  }

  Context.prototype = {
    constructor: Context,
    reset: function reset(skipTempReset) {
      this.prev = 0;
      this.next = 0;
      this.sent = this._sent = undefined;
      this.done = false;
      this.delegate = null;
      this.method = "next";
      this.arg = undefined;
      this.tryEntries.forEach(resetTryEntry);

      if (!skipTempReset) {
        for (var name in this) {
          if (name.charAt(0) === "t" && hasOwn.call(this, name) && !isNaN(+name.slice(1))) {
            this[name] = undefined;
          }
        }
      }
    },
    stop: function stop() {
      this.done = true;
      var rootEntry = this.tryEntries[0];
      var rootRecord = rootEntry.completion;

      if (rootRecord.type === "throw") {
        throw rootRecord.arg;
      }

      return this.rval;
    },
    dispatchException: function dispatchException(exception) {
      if (this.done) {
        throw exception;
      }

      var context = this;

      function handle(loc, caught) {
        record.type = "throw";
        record.arg = exception;
        context.next = loc;

        if (caught) {
          context.method = "next";
          context.arg = undefined;
        }

        return !!caught;
      }

      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];
        var record = entry.completion;

        if (entry.tryLoc === "root") {
          return handle("end");
        }

        if (entry.tryLoc <= this.prev) {
          var hasCatch = hasOwn.call(entry, "catchLoc");
          var hasFinally = hasOwn.call(entry, "finallyLoc");

          if (hasCatch && hasFinally) {
            if (this.prev < entry.catchLoc) {
              return handle(entry.catchLoc, true);
            } else if (this.prev < entry.finallyLoc) {
              return handle(entry.finallyLoc);
            }
          } else if (hasCatch) {
            if (this.prev < entry.catchLoc) {
              return handle(entry.catchLoc, true);
            }
          } else if (hasFinally) {
            if (this.prev < entry.finallyLoc) {
              return handle(entry.finallyLoc);
            }
          } else {
            throw new Error("try statement without catch or finally");
          }
        }
      }
    },
    abrupt: function abrupt(type, arg) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];

        if (entry.tryLoc <= this.prev && hasOwn.call(entry, "finallyLoc") && this.prev < entry.finallyLoc) {
          var finallyEntry = entry;
          break;
        }
      }

      if (finallyEntry && (type === "break" || type === "continue") && finallyEntry.tryLoc <= arg && arg <= finallyEntry.finallyLoc) {
        finallyEntry = null;
      }

      var record = finallyEntry ? finallyEntry.completion : {};
      record.type = type;
      record.arg = arg;

      if (finallyEntry) {
        this.method = "next";
        this.next = finallyEntry.finallyLoc;
        return ContinueSentinel;
      }

      return this.complete(record);
    },
    complete: function complete(record, afterLoc) {
      if (record.type === "throw") {
        throw record.arg;
      }

      if (record.type === "break" || record.type === "continue") {
        this.next = record.arg;
      } else if (record.type === "return") {
        this.rval = this.arg = record.arg;
        this.method = "return";
        this.next = "end";
      } else if (record.type === "normal" && afterLoc) {
        this.next = afterLoc;
      }

      return ContinueSentinel;
    },
    finish: function finish(finallyLoc) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];

        if (entry.finallyLoc === finallyLoc) {
          this.complete(entry.completion, entry.afterLoc);
          resetTryEntry(entry);
          return ContinueSentinel;
        }
      }
    },
    "catch": function _catch(tryLoc) {
      for (var i = this.tryEntries.length - 1; i >= 0; --i) {
        var entry = this.tryEntries[i];

        if (entry.tryLoc === tryLoc) {
          var record = entry.completion;

          if (record.type === "throw") {
            var thrown = record.arg;
            resetTryEntry(entry);
          }

          return thrown;
        }
      }

      throw new Error("illegal catch attempt");
    },
    delegateYield: function delegateYield(iterable, resultName, nextLoc) {
      this.delegate = {
        iterator: values(iterable),
        resultName: resultName,
        nextLoc: nextLoc
      };

      if (this.method === "next") {
        this.arg = undefined;
      }

      return ContinueSentinel;
    }
  };
  return exports;
}(( false ? undefined : _typeof(module)) === "object" ? module.exports : {});

try {
  regeneratorRuntime = runtime;
} catch (accidentalStrictMode) {
  Function("r", "regeneratorRuntime = r")(runtime);
}
/* WEBPACK VAR INJECTION */}.call(this, __w_pdfjs_require__(150)(module)))

/***/ }),
/* 150 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


module.exports = function (module) {
  if (!module.webpackPolyfill) {
    module.deprecate = function () {};

    module.paths = [];
    if (!module.children) module.children = [];
    Object.defineProperty(module, "loaded", {
      enumerable: true,
      get: function get() {
        return module.l;
      }
    });
    Object.defineProperty(module, "id", {
      enumerable: true,
      get: function get() {
        return module.i;
      }
    });
    module.webpackPolyfill = 1;
  }

  return module;
};

/***/ }),
/* 151 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.addLinkAttributes = addLinkAttributes;
exports.getFilenameFromUrl = getFilenameFromUrl;
exports.isFetchSupported = isFetchSupported;
exports.isValidFetchUrl = isValidFetchUrl;
exports.loadScript = loadScript;
exports.deprecated = deprecated;
exports.releaseImageResources = releaseImageResources;
exports.PDFDateString = exports.DummyStatTimer = exports.StatTimer = exports.DOMSVGFactory = exports.DOMCMapReaderFactory = exports.DOMCanvasFactory = exports.DEFAULT_LINK_REL = exports.LinkTarget = exports.RenderingCancelledException = exports.PageViewport = void 0;

var _regenerator = _interopRequireDefault(__w_pdfjs_require__(148));

var _util = __w_pdfjs_require__(1);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var DEFAULT_LINK_REL = 'noopener noreferrer nofollow';
exports.DEFAULT_LINK_REL = DEFAULT_LINK_REL;
var SVG_NS = 'http://www.w3.org/2000/svg';

var DOMCanvasFactory =
/*#__PURE__*/
function () {
  function DOMCanvasFactory() {
    _classCallCheck(this, DOMCanvasFactory);
  }

  _createClass(DOMCanvasFactory, [{
    key: "create",
    value: function create(width, height) {
      if (width <= 0 || height <= 0) {
        throw new Error('Invalid canvas size');
      }

      var canvas = document.createElement('canvas');
      var context = canvas.getContext('2d');
      canvas.width = width;
      canvas.height = height;
      return {
        canvas: canvas,
        context: context
      };
    }
  }, {
    key: "reset",
    value: function reset(canvasAndContext, width, height) {
      if (!canvasAndContext.canvas) {
        throw new Error('Canvas is not specified');
      }

      if (width <= 0 || height <= 0) {
        throw new Error('Invalid canvas size');
      }

      canvasAndContext.canvas.width = width;
      canvasAndContext.canvas.height = height;
    }
  }, {
    key: "destroy",
    value: function destroy(canvasAndContext) {
      if (!canvasAndContext.canvas) {
        throw new Error('Canvas is not specified');
      }

      canvasAndContext.canvas.width = 0;
      canvasAndContext.canvas.height = 0;
      canvasAndContext.canvas = null;
      canvasAndContext.context = null;
    }
  }]);

  return DOMCanvasFactory;
}();

exports.DOMCanvasFactory = DOMCanvasFactory;

var DOMCMapReaderFactory =
/*#__PURE__*/
function () {
  function DOMCMapReaderFactory(_ref) {
    var _ref$baseUrl = _ref.baseUrl,
        baseUrl = _ref$baseUrl === void 0 ? null : _ref$baseUrl,
        _ref$isCompressed = _ref.isCompressed,
        isCompressed = _ref$isCompressed === void 0 ? false : _ref$isCompressed;

    _classCallCheck(this, DOMCMapReaderFactory);

    this.baseUrl = baseUrl;
    this.isCompressed = isCompressed;
  }

  _createClass(DOMCMapReaderFactory, [{
    key: "fetch",
    value: function (_fetch) {
      function fetch(_x) {
        return _fetch.apply(this, arguments);
      }

      fetch.toString = function () {
        return _fetch.toString();
      };

      return fetch;
    }(
    /*#__PURE__*/
    function () {
      var _ref3 = _asyncToGenerator(
      /*#__PURE__*/
      _regenerator["default"].mark(function _callee2(_ref2) {
        var _this = this;

        var name, url, compressionType;
        return _regenerator["default"].wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                name = _ref2.name;

                if (this.baseUrl) {
                  _context2.next = 3;
                  break;
                }

                throw new Error('The CMap "baseUrl" parameter must be specified, ensure that ' + 'the "cMapUrl" and "cMapPacked" API parameters are provided.');

              case 3:
                if (name) {
                  _context2.next = 5;
                  break;
                }

                throw new Error('CMap name must be specified.');

              case 5:
                url = this.baseUrl + name + (this.isCompressed ? '.bcmap' : '');
                compressionType = this.isCompressed ? _util.CMapCompressionType.BINARY : _util.CMapCompressionType.NONE;

                if (!(isFetchSupported() && isValidFetchUrl(url, document.baseURI))) {
                  _context2.next = 9;
                  break;
                }

                return _context2.abrupt("return", fetch(url).then(
                /*#__PURE__*/
                function () {
                  var _ref4 = _asyncToGenerator(
                  /*#__PURE__*/
                  _regenerator["default"].mark(function _callee(response) {
                    var cMapData;
                    return _regenerator["default"].wrap(function _callee$(_context) {
                      while (1) {
                        switch (_context.prev = _context.next) {
                          case 0:
                            if (response.ok) {
                              _context.next = 2;
                              break;
                            }

                            throw new Error(response.statusText);

                          case 2:
                            if (!_this.isCompressed) {
                              _context.next = 10;
                              break;
                            }

                            _context.t0 = Uint8Array;
                            _context.next = 6;
                            return response.arrayBuffer();

                          case 6:
                            _context.t1 = _context.sent;
                            cMapData = new _context.t0(_context.t1);
                            _context.next = 15;
                            break;

                          case 10:
                            _context.t2 = _util.stringToBytes;
                            _context.next = 13;
                            return response.text();

                          case 13:
                            _context.t3 = _context.sent;
                            cMapData = (0, _context.t2)(_context.t3);

                          case 15:
                            return _context.abrupt("return", {
                              cMapData: cMapData,
                              compressionType: compressionType
                            });

                          case 16:
                          case "end":
                            return _context.stop();
                        }
                      }
                    }, _callee);
                  }));

                  return function (_x3) {
                    return _ref4.apply(this, arguments);
                  };
                }())["catch"](function (reason) {
                  throw new Error("Unable to load ".concat(_this.isCompressed ? 'binary ' : '') + "CMap at: ".concat(url));
                }));

              case 9:
                return _context2.abrupt("return", new Promise(function (resolve, reject) {
                  var request = new XMLHttpRequest();
                  request.open('GET', url, true);

                  if (_this.isCompressed) {
                    request.responseType = 'arraybuffer';
                  }

                  request.onreadystatechange = function () {
                    if (request.readyState !== XMLHttpRequest.DONE) {
                      return;
                    }

                    if (request.status === 200 || request.status === 0) {
                      var cMapData;

                      if (_this.isCompressed && request.response) {
                        cMapData = new Uint8Array(request.response);
                      } else if (!_this.isCompressed && request.responseText) {
                        cMapData = (0, _util.stringToBytes)(request.responseText);
                      }

                      if (cMapData) {
                        resolve({
                          cMapData: cMapData,
                          compressionType: compressionType
                        });
                        return;
                      }
                    }

                    reject(new Error(request.statusText));
                  };

                  request.send(null);
                })["catch"](function (reason) {
                  throw new Error("Unable to load ".concat(_this.isCompressed ? 'binary ' : '') + "CMap at: ".concat(url));
                }));

              case 10:
              case "end":
                return _context2.stop();
            }
          }
        }, _callee2, this);
      }));

      return function (_x2) {
        return _ref3.apply(this, arguments);
      };
    }())
  }]);

  return DOMCMapReaderFactory;
}();

exports.DOMCMapReaderFactory = DOMCMapReaderFactory;

var DOMSVGFactory =
/*#__PURE__*/
function () {
  function DOMSVGFactory() {
    _classCallCheck(this, DOMSVGFactory);
  }

  _createClass(DOMSVGFactory, [{
    key: "create",
    value: function create(width, height) {
      (0, _util.assert)(width > 0 && height > 0, 'Invalid SVG dimensions');
      var svg = document.createElementNS(SVG_NS, 'svg:svg');
      svg.setAttribute('version', '1.1');
      svg.setAttribute('width', width + 'px');
      svg.setAttribute('height', height + 'px');
      svg.setAttribute('preserveAspectRatio', 'none');
      svg.setAttribute('viewBox', '0 0 ' + width + ' ' + height);
      return svg;
    }
  }, {
    key: "createElement",
    value: function createElement(type) {
      (0, _util.assert)(typeof type === 'string', 'Invalid SVG element type');
      return document.createElementNS(SVG_NS, type);
    }
  }]);

  return DOMSVGFactory;
}();

exports.DOMSVGFactory = DOMSVGFactory;

var PageViewport =
/*#__PURE__*/
function () {
  function PageViewport(_ref5) {
    var viewBox = _ref5.viewBox,
        scale = _ref5.scale,
        rotation = _ref5.rotation,
        _ref5$offsetX = _ref5.offsetX,
        offsetX = _ref5$offsetX === void 0 ? 0 : _ref5$offsetX,
        _ref5$offsetY = _ref5.offsetY,
        offsetY = _ref5$offsetY === void 0 ? 0 : _ref5$offsetY,
        _ref5$dontFlip = _ref5.dontFlip,
        dontFlip = _ref5$dontFlip === void 0 ? false : _ref5$dontFlip;

    _classCallCheck(this, PageViewport);

    this.viewBox = viewBox;
    this.scale = scale;
    this.rotation = rotation;
    this.offsetX = offsetX;
    this.offsetY = offsetY;
    var centerX = (viewBox[2] + viewBox[0]) / 2;
    var centerY = (viewBox[3] + viewBox[1]) / 2;
    var rotateA, rotateB, rotateC, rotateD;
    rotation = rotation % 360;
    rotation = rotation < 0 ? rotation + 360 : rotation;

    switch (rotation) {
      case 180:
        rotateA = -1;
        rotateB = 0;
        rotateC = 0;
        rotateD = 1;
        break;

      case 90:
        rotateA = 0;
        rotateB = 1;
        rotateC = 1;
        rotateD = 0;
        break;

      case 270:
        rotateA = 0;
        rotateB = -1;
        rotateC = -1;
        rotateD = 0;
        break;

      default:
        rotateA = 1;
        rotateB = 0;
        rotateC = 0;
        rotateD = -1;
        break;
    }

    if (dontFlip) {
      rotateC = -rotateC;
      rotateD = -rotateD;
    }

    var offsetCanvasX, offsetCanvasY;
    var width, height;

    if (rotateA === 0) {
      offsetCanvasX = Math.abs(centerY - viewBox[1]) * scale + offsetX;
      offsetCanvasY = Math.abs(centerX - viewBox[0]) * scale + offsetY;
      width = Math.abs(viewBox[3] - viewBox[1]) * scale;
      height = Math.abs(viewBox[2] - viewBox[0]) * scale;
    } else {
      offsetCanvasX = Math.abs(centerX - viewBox[0]) * scale + offsetX;
      offsetCanvasY = Math.abs(centerY - viewBox[1]) * scale + offsetY;
      width = Math.abs(viewBox[2] - viewBox[0]) * scale;
      height = Math.abs(viewBox[3] - viewBox[1]) * scale;
    }

    this.transform = [rotateA * scale, rotateB * scale, rotateC * scale, rotateD * scale, offsetCanvasX - rotateA * scale * centerX - rotateC * scale * centerY, offsetCanvasY - rotateB * scale * centerX - rotateD * scale * centerY];
    this.width = width;
    this.height = height;
  }

  _createClass(PageViewport, [{
    key: "clone",
    value: function clone() {
      var _ref6 = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {},
          _ref6$scale = _ref6.scale,
          scale = _ref6$scale === void 0 ? this.scale : _ref6$scale,
          _ref6$rotation = _ref6.rotation,
          rotation = _ref6$rotation === void 0 ? this.rotation : _ref6$rotation,
          _ref6$dontFlip = _ref6.dontFlip,
          dontFlip = _ref6$dontFlip === void 0 ? false : _ref6$dontFlip;

      return new PageViewport({
        viewBox: this.viewBox.slice(),
        scale: scale,
        rotation: rotation,
        offsetX: this.offsetX,
        offsetY: this.offsetY,
        dontFlip: dontFlip
      });
    }
  }, {
    key: "convertToViewportPoint",
    value: function convertToViewportPoint(x, y) {
      return _util.Util.applyTransform([x, y], this.transform);
    }
  }, {
    key: "convertToViewportRectangle",
    value: function convertToViewportRectangle(rect) {
      var topLeft = _util.Util.applyTransform([rect[0], rect[1]], this.transform);

      var bottomRight = _util.Util.applyTransform([rect[2], rect[3]], this.transform);

      return [topLeft[0], topLeft[1], bottomRight[0], bottomRight[1]];
    }
  }, {
    key: "convertToPdfPoint",
    value: function convertToPdfPoint(x, y) {
      return _util.Util.applyInverseTransform([x, y], this.transform);
    }
  }]);

  return PageViewport;
}();

exports.PageViewport = PageViewport;

var RenderingCancelledException = function RenderingCancelledException() {
  function RenderingCancelledException(msg, type) {
    this.message = msg;
    this.type = type;
  }

  RenderingCancelledException.prototype = new Error();
  RenderingCancelledException.prototype.name = 'RenderingCancelledException';
  RenderingCancelledException.constructor = RenderingCancelledException;
  return RenderingCancelledException;
}();

exports.RenderingCancelledException = RenderingCancelledException;
var LinkTarget = {
  NONE: 0,
  SELF: 1,
  BLANK: 2,
  PARENT: 3,
  TOP: 4
};
exports.LinkTarget = LinkTarget;
var LinkTargetStringMap = ['', '_self', '_blank', '_parent', '_top'];

function addLinkAttributes(link) {
  var _ref7 = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {},
      url = _ref7.url,
      target = _ref7.target,
      rel = _ref7.rel;

  link.href = link.title = url ? (0, _util.removeNullCharacters)(url) : '';

  if (url) {
    var LinkTargetValues = Object.values(LinkTarget);
    var targetIndex = LinkTargetValues.includes(target) ? target : LinkTarget.NONE;
    link.target = LinkTargetStringMap[targetIndex];
    link.rel = typeof rel === 'string' ? rel : DEFAULT_LINK_REL;
  }
}

function getFilenameFromUrl(url) {
  var anchor = url.indexOf('#');
  var query = url.indexOf('?');
  var end = Math.min(anchor > 0 ? anchor : url.length, query > 0 ? query : url.length);
  return url.substring(url.lastIndexOf('/', end) + 1, end);
}

var StatTimer =
/*#__PURE__*/
function () {
  function StatTimer() {
    var enable = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;

    _classCallCheck(this, StatTimer);

    this.enabled = !!enable;
    this.started = Object.create(null);
    this.times = [];
  }

  _createClass(StatTimer, [{
    key: "time",
    value: function time(name) {
      if (!this.enabled) {
        return;
      }

      if (name in this.started) {
        (0, _util.warn)('Timer is already running for ' + name);
      }

      this.started[name] = Date.now();
    }
  }, {
    key: "timeEnd",
    value: function timeEnd(name) {
      if (!this.enabled) {
        return;
      }

      if (!(name in this.started)) {
        (0, _util.warn)('Timer has not been started for ' + name);
      }

      this.times.push({
        'name': name,
        'start': this.started[name],
        'end': Date.now()
      });
      delete this.started[name];
    }
  }, {
    key: "toString",
    value: function toString() {
      var out = '',
          longest = 0;
      var _iteratorNormalCompletion = true;
      var _didIteratorError = false;
      var _iteratorError = undefined;

      try {
        for (var _iterator = this.times[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
          var time = _step.value;
          var name = time.name;

          if (name.length > longest) {
            longest = name.length;
          }
        }
      } catch (err) {
        _didIteratorError = true;
        _iteratorError = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion && _iterator["return"] != null) {
            _iterator["return"]();
          }
        } finally {
          if (_didIteratorError) {
            throw _iteratorError;
          }
        }
      }

      var _iteratorNormalCompletion2 = true;
      var _didIteratorError2 = false;
      var _iteratorError2 = undefined;

      try {
        for (var _iterator2 = this.times[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
          var _time = _step2.value;
          var duration = _time.end - _time.start;
          out += "".concat(_time.name.padEnd(longest), " ").concat(duration, "ms\n");
        }
      } catch (err) {
        _didIteratorError2 = true;
        _iteratorError2 = err;
      } finally {
        try {
          if (!_iteratorNormalCompletion2 && _iterator2["return"] != null) {
            _iterator2["return"]();
          }
        } finally {
          if (_didIteratorError2) {
            throw _iteratorError2;
          }
        }
      }

      return out;
    }
  }]);

  return StatTimer;
}();

exports.StatTimer = StatTimer;

var DummyStatTimer =
/*#__PURE__*/
function () {
  function DummyStatTimer() {
    _classCallCheck(this, DummyStatTimer);

    (0, _util.unreachable)('Cannot initialize DummyStatTimer.');
  }

  _createClass(DummyStatTimer, null, [{
    key: "time",
    value: function time(name) {}
  }, {
    key: "timeEnd",
    value: function timeEnd(name) {}
  }, {
    key: "toString",
    value: function toString() {
      return '';
    }
  }]);

  return DummyStatTimer;
}();

exports.DummyStatTimer = DummyStatTimer;

function isFetchSupported() {
  return typeof fetch !== 'undefined' && typeof Response !== 'undefined' && 'body' in Response.prototype && typeof ReadableStream !== 'undefined';
}

function isValidFetchUrl(url, baseUrl) {
  try {
    var _ref8 = baseUrl ? new _util.URL(url, baseUrl) : new _util.URL(url),
        protocol = _ref8.protocol;

    return protocol === 'http:' || protocol === 'https:';
  } catch (ex) {
    return false;
  }
}

function loadScript(src) {
  return new Promise(function (resolve, reject) {
    var script = document.createElement('script');
    script.src = src;
    script.onload = resolve;

    script.onerror = function () {
      reject(new Error("Cannot load script at: ".concat(script.src)));
    };

    (document.head || document.documentElement).appendChild(script);
  });
}

function deprecated(details) {
  console.log('Deprecated API usage: ' + details);
}

function releaseImageResources(img) {
  (0, _util.assert)(img instanceof Image, 'Invalid `img` parameter.');
  var url = img.src;

  if (typeof url === 'string' && url.startsWith('blob:') && _util.URL.revokeObjectURL) {
    _util.URL.revokeObjectURL(url);
  }

  img.removeAttribute('src');
}

var pdfDateStringRegex;

var PDFDateString =
/*#__PURE__*/
function () {
  function PDFDateString() {
    _classCallCheck(this, PDFDateString);
  }

  _createClass(PDFDateString, null, [{
    key: "toDateObject",
    value: function toDateObject(input) {
      if (!input || !(0, _util.isString)(input)) {
        return null;
      }

      if (!pdfDateStringRegex) {
        pdfDateStringRegex = new RegExp('^D:' + '(\\d{4})' + '(\\d{2})?' + '(\\d{2})?' + '(\\d{2})?' + '(\\d{2})?' + '(\\d{2})?' + '([Z|+|-])?' + '(\\d{2})?' + '\'?' + '(\\d{2})?' + '\'?');
      }

      var matches = pdfDateStringRegex.exec(input);

      if (!matches) {
        return null;
      }

      var year = parseInt(matches[1], 10);
      var month = parseInt(matches[2], 10);
      month = month >= 1 && month <= 12 ? month - 1 : 0;
      var day = parseInt(matches[3], 10);
      day = day >= 1 && day <= 31 ? day : 1;
      var hour = parseInt(matches[4], 10);
      hour = hour >= 0 && hour <= 23 ? hour : 0;
      var minute = parseInt(matches[5], 10);
      minute = minute >= 0 && minute <= 59 ? minute : 0;
      var second = parseInt(matches[6], 10);
      second = second >= 0 && second <= 59 ? second : 0;
      var universalTimeRelation = matches[7] || 'Z';
      var offsetHour = parseInt(matches[8], 10);
      offsetHour = offsetHour >= 0 && offsetHour <= 23 ? offsetHour : 0;
      var offsetMinute = parseInt(matches[9], 10) || 0;
      offsetMinute = offsetMinute >= 0 && offsetMinute <= 59 ? offsetMinute : 0;

      if (universalTimeRelation === '-') {
        hour += offsetHour;
        minute += offsetMinute;
      } else if (universalTimeRelation === '+') {
        hour -= offsetHour;
        minute -= offsetMinute;
      }

      return new Date(Date.UTC(year, month, day, hour, minute, second));
    }
  }]);

  return PDFDateString;
}();

exports.PDFDateString = PDFDateString;

/***/ }),
/* 152 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.FontLoader = exports.FontFaceObject = void 0;

var _regenerator = _interopRequireDefault(__w_pdfjs_require__(148));

var _util = __w_pdfjs_require__(1);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }

function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var BaseFontLoader =
/*#__PURE__*/
function () {
  function BaseFontLoader(_ref) {
    var docId = _ref.docId,
        onUnsupportedFeature = _ref.onUnsupportedFeature;

    _classCallCheck(this, BaseFontLoader);

    if (this.constructor === BaseFontLoader) {
      (0, _util.unreachable)('Cannot initialize BaseFontLoader.');
    }

    this.docId = docId;
    this._onUnsupportedFeature = onUnsupportedFeature;
    this.nativeFontFaces = [];
    this.styleElement = null;
  }

  _createClass(BaseFontLoader, [{
    key: "addNativeFontFace",
    value: function addNativeFontFace(nativeFontFace) {
      this.nativeFontFaces.push(nativeFontFace);
      document.fonts.add(nativeFontFace);
    }
  }, {
    key: "insertRule",
    value: function insertRule(rule) {
      var styleElement = this.styleElement;

      if (!styleElement) {
        styleElement = this.styleElement = document.createElement('style');
        styleElement.id = "PDFJS_FONT_STYLE_TAG_".concat(this.docId);
        document.documentElement.getElementsByTagName('head')[0].appendChild(styleElement);
      }

      var styleSheet = styleElement.sheet;
      styleSheet.insertRule(rule, styleSheet.cssRules.length);
    }
  }, {
    key: "clear",
    value: function clear() {
      this.nativeFontFaces.forEach(function (nativeFontFace) {
        document.fonts["delete"](nativeFontFace);
      });
      this.nativeFontFaces.length = 0;

      if (this.styleElement) {
        this.styleElement.remove();
        this.styleElement = null;
      }
    }
  }, {
    key: "bind",
    value: function () {
      var _bind = _asyncToGenerator(
      /*#__PURE__*/
      _regenerator["default"].mark(function _callee(font) {
        var _this = this;

        var nativeFontFace, rule;
        return _regenerator["default"].wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                if (!(font.attached || font.missingFile)) {
                  _context.next = 2;
                  break;
                }

                return _context.abrupt("return", undefined);

              case 2:
                font.attached = true;

                if (!this.isFontLoadingAPISupported) {
                  _context.next = 19;
                  break;
                }

                nativeFontFace = font.createNativeFontFace();

                if (!nativeFontFace) {
                  _context.next = 18;
                  break;
                }

                this.addNativeFontFace(nativeFontFace);
                _context.prev = 7;
                _context.next = 10;
                return nativeFontFace.loaded;

              case 10:
                _context.next = 18;
                break;

              case 12:
                _context.prev = 12;
                _context.t0 = _context["catch"](7);

                this._onUnsupportedFeature({
                  featureId: _util.UNSUPPORTED_FEATURES.font
                });

                (0, _util.warn)("Failed to load font '".concat(nativeFontFace.family, "': '").concat(_context.t0, "'."));
                font.disableFontFace = true;
                throw _context.t0;

              case 18:
                return _context.abrupt("return", undefined);

              case 19:
                rule = font.createFontFaceRule();

                if (!rule) {
                  _context.next = 25;
                  break;
                }

                this.insertRule(rule);

                if (!this.isSyncFontLoadingSupported) {
                  _context.next = 24;
                  break;
                }

                return _context.abrupt("return", undefined);

              case 24:
                return _context.abrupt("return", new Promise(function (resolve) {
                  var request = _this._queueLoadingCallback(resolve);

                  _this._prepareFontLoadEvent([rule], [font], request);
                }));

              case 25:
                return _context.abrupt("return", undefined);

              case 26:
              case "end":
                return _context.stop();
            }
          }
        }, _callee, this, [[7, 12]]);
      }));

      function bind(_x) {
        return _bind.apply(this, arguments);
      }

      return bind;
    }()
  }, {
    key: "_queueLoadingCallback",
    value: function _queueLoadingCallback(callback) {
      (0, _util.unreachable)('Abstract method `_queueLoadingCallback`.');
    }
  }, {
    key: "_prepareFontLoadEvent",
    value: function _prepareFontLoadEvent(rules, fontsToLoad, request) {
      (0, _util.unreachable)('Abstract method `_prepareFontLoadEvent`.');
    }
  }, {
    key: "isFontLoadingAPISupported",
    get: function get() {
      (0, _util.unreachable)('Abstract method `isFontLoadingAPISupported`.');
    }
  }, {
    key: "isSyncFontLoadingSupported",
    get: function get() {
      (0, _util.unreachable)('Abstract method `isSyncFontLoadingSupported`.');
    }
  }, {
    key: "_loadTestFont",
    get: function get() {
      (0, _util.unreachable)('Abstract method `_loadTestFont`.');
    }
  }]);

  return BaseFontLoader;
}();

var FontLoader;
exports.FontLoader = FontLoader;
{
  exports.FontLoader = FontLoader =
  /*#__PURE__*/
  function (_BaseFontLoader) {
    _inherits(GenericFontLoader, _BaseFontLoader);

    function GenericFontLoader(docId) {
      var _this2;

      _classCallCheck(this, GenericFontLoader);

      _this2 = _possibleConstructorReturn(this, _getPrototypeOf(GenericFontLoader).call(this, docId));
      _this2.loadingContext = {
        requests: [],
        nextRequestId: 0
      };
      _this2.loadTestFontId = 0;
      return _this2;
    }

    _createClass(GenericFontLoader, [{
      key: "_queueLoadingCallback",
      value: function _queueLoadingCallback(callback) {
        function completeRequest() {
          (0, _util.assert)(!request.done, 'completeRequest() cannot be called twice.');
          request.done = true;

          while (context.requests.length > 0 && context.requests[0].done) {
            var otherRequest = context.requests.shift();
            setTimeout(otherRequest.callback, 0);
          }
        }

        var context = this.loadingContext;
        var request = {
          id: "pdfjs-font-loading-".concat(context.nextRequestId++),
          done: false,
          complete: completeRequest,
          callback: callback
        };
        context.requests.push(request);
        return request;
      }
    }, {
      key: "_prepareFontLoadEvent",
      value: function _prepareFontLoadEvent(rules, fonts, request) {
        function int32(data, offset) {
          return data.charCodeAt(offset) << 24 | data.charCodeAt(offset + 1) << 16 | data.charCodeAt(offset + 2) << 8 | data.charCodeAt(offset + 3) & 0xff;
        }

        function spliceString(s, offset, remove, insert) {
          var chunk1 = s.substring(0, offset);
          var chunk2 = s.substring(offset + remove);
          return chunk1 + insert + chunk2;
        }

        var i, ii;
        var canvas = document.createElement('canvas');
        canvas.width = 1;
        canvas.height = 1;
        var ctx = canvas.getContext('2d');
        var called = 0;

        function isFontReady(name, callback) {
          called++;

          if (called > 30) {
            (0, _util.warn)('Load test font never loaded.');
            callback();
            return;
          }

          ctx.font = '30px ' + name;
          ctx.fillText('.', 0, 20);
          var imageData = ctx.getImageData(0, 0, 1, 1);

          if (imageData.data[3] > 0) {
            callback();
            return;
          }

          setTimeout(isFontReady.bind(null, name, callback));
        }

        var loadTestFontId = "lt".concat(Date.now()).concat(this.loadTestFontId++);
        var data = this._loadTestFont;
        var COMMENT_OFFSET = 976;
        data = spliceString(data, COMMENT_OFFSET, loadTestFontId.length, loadTestFontId);
        var CFF_CHECKSUM_OFFSET = 16;
        var XXXX_VALUE = 0x58585858;
        var checksum = int32(data, CFF_CHECKSUM_OFFSET);

        for (i = 0, ii = loadTestFontId.length - 3; i < ii; i += 4) {
          checksum = checksum - XXXX_VALUE + int32(loadTestFontId, i) | 0;
        }

        if (i < loadTestFontId.length) {
          checksum = checksum - XXXX_VALUE + int32(loadTestFontId + 'XXX', i) | 0;
        }

        data = spliceString(data, CFF_CHECKSUM_OFFSET, 4, (0, _util.string32)(checksum));
        var url = "url(data:font/opentype;base64,".concat(btoa(data), ");");
        var rule = "@font-face {font-family:\"".concat(loadTestFontId, "\";src:").concat(url, "}");
        this.insertRule(rule);
        var names = [];

        for (i = 0, ii = fonts.length; i < ii; i++) {
          names.push(fonts[i].loadedName);
        }

        names.push(loadTestFontId);
        var div = document.createElement('div');
        div.setAttribute('style', 'visibility: hidden;' + 'width: 10px; height: 10px;' + 'position: absolute; top: 0px; left: 0px;');

        for (i = 0, ii = names.length; i < ii; ++i) {
          var span = document.createElement('span');
          span.textContent = 'Hi';
          span.style.fontFamily = names[i];
          div.appendChild(span);
        }

        document.body.appendChild(div);
        isFontReady(loadTestFontId, function () {
          document.body.removeChild(div);
          request.complete();
        });
      }
    }, {
      key: "isFontLoadingAPISupported",
      get: function get() {
        var supported = typeof document !== 'undefined' && !!document.fonts;

        if (supported && typeof navigator !== 'undefined') {
          var m = /Mozilla\/5.0.*?rv:(\d+).*? Gecko/.exec(navigator.userAgent);

          if (m && m[1] < 63) {
            supported = false;
          }
        }

        return (0, _util.shadow)(this, 'isFontLoadingAPISupported', supported);
      }
    }, {
      key: "isSyncFontLoadingSupported",
      get: function get() {
        var supported = false;

        if (typeof navigator === 'undefined') {
          supported = true;
        } else {
          var m = /Mozilla\/5.0.*?rv:(\d+).*? Gecko/.exec(navigator.userAgent);

          if (m && m[1] >= 14) {
            supported = true;
          }
        }

        return (0, _util.shadow)(this, 'isSyncFontLoadingSupported', supported);
      }
    }, {
      key: "_loadTestFont",
      get: function get() {
        var getLoadTestFont = function getLoadTestFont() {
          return atob('T1RUTwALAIAAAwAwQ0ZGIDHtZg4AAAOYAAAAgUZGVE1lkzZwAAAEHAAAABxHREVGABQA' + 'FQAABDgAAAAeT1MvMlYNYwkAAAEgAAAAYGNtYXABDQLUAAACNAAAAUJoZWFk/xVFDQAA' + 'ALwAAAA2aGhlYQdkA+oAAAD0AAAAJGhtdHgD6AAAAAAEWAAAAAZtYXhwAAJQAAAAARgA' + 'AAAGbmFtZVjmdH4AAAGAAAAAsXBvc3T/hgAzAAADeAAAACAAAQAAAAEAALZRFsRfDzz1' + 'AAsD6AAAAADOBOTLAAAAAM4KHDwAAAAAA+gDIQAAAAgAAgAAAAAAAAABAAADIQAAAFoD' + '6AAAAAAD6AABAAAAAAAAAAAAAAAAAAAAAQAAUAAAAgAAAAQD6AH0AAUAAAKKArwAAACM' + 'AooCvAAAAeAAMQECAAACAAYJAAAAAAAAAAAAAQAAAAAAAAAAAAAAAFBmRWQAwAAuAC4D' + 'IP84AFoDIQAAAAAAAQAAAAAAAAAAACAAIAABAAAADgCuAAEAAAAAAAAAAQAAAAEAAAAA' + 'AAEAAQAAAAEAAAAAAAIAAQAAAAEAAAAAAAMAAQAAAAEAAAAAAAQAAQAAAAEAAAAAAAUA' + 'AQAAAAEAAAAAAAYAAQAAAAMAAQQJAAAAAgABAAMAAQQJAAEAAgABAAMAAQQJAAIAAgAB' + 'AAMAAQQJAAMAAgABAAMAAQQJAAQAAgABAAMAAQQJAAUAAgABAAMAAQQJAAYAAgABWABY' + 'AAAAAAAAAwAAAAMAAAAcAAEAAAAAADwAAwABAAAAHAAEACAAAAAEAAQAAQAAAC7//wAA' + 'AC7////TAAEAAAAAAAABBgAAAQAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' + 'AAAAAAAAAAAAAAAAAAEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' + 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' + 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' + 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA' + 'AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAMAAAAAAAD/gwAyAAAAAQAAAAAAAAAAAAAAAAAA' + 'AAABAAQEAAEBAQJYAAEBASH4DwD4GwHEAvgcA/gXBIwMAYuL+nz5tQXkD5j3CBLnEQAC' + 'AQEBIVhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYWFhYAAABAQAADwACAQEEE/t3' + 'Dov6fAH6fAT+fPp8+nwHDosMCvm1Cvm1DAz6fBQAAAAAAAABAAAAAMmJbzEAAAAAzgTj' + 'FQAAAADOBOQpAAEAAAAAAAAADAAUAAQAAAABAAAAAgABAAAAAAAAAAAD6AAAAAAAAA==');
        };

        return (0, _util.shadow)(this, '_loadTestFont', getLoadTestFont());
      }
    }]);

    return GenericFontLoader;
  }(BaseFontLoader);
}
var IsEvalSupportedCached = {
  get value() {
    return (0, _util.shadow)(this, 'value', (0, _util.isEvalSupported)());
  }

};

var FontFaceObject =
/*#__PURE__*/
function () {
  function FontFaceObject(translatedData, _ref2) {
    var _ref2$isEvalSupported = _ref2.isEvalSupported,
        isEvalSupported = _ref2$isEvalSupported === void 0 ? true : _ref2$isEvalSupported,
        _ref2$disableFontFace = _ref2.disableFontFace,
        disableFontFace = _ref2$disableFontFace === void 0 ? false : _ref2$disableFontFace,
        _ref2$ignoreErrors = _ref2.ignoreErrors,
        ignoreErrors = _ref2$ignoreErrors === void 0 ? false : _ref2$ignoreErrors,
        _ref2$onUnsupportedFe = _ref2.onUnsupportedFeature,
        onUnsupportedFeature = _ref2$onUnsupportedFe === void 0 ? null : _ref2$onUnsupportedFe,
        _ref2$fontRegistry = _ref2.fontRegistry,
        fontRegistry = _ref2$fontRegistry === void 0 ? null : _ref2$fontRegistry;

    _classCallCheck(this, FontFaceObject);

    this.compiledGlyphs = Object.create(null);

    for (var i in translatedData) {
      this[i] = translatedData[i];
    }

    this.isEvalSupported = isEvalSupported !== false;
    this.disableFontFace = disableFontFace === true;
    this.ignoreErrors = ignoreErrors === true;
    this._onUnsupportedFeature = onUnsupportedFeature;
    this.fontRegistry = fontRegistry;
  }

  _createClass(FontFaceObject, [{
    key: "createNativeFontFace",
    value: function createNativeFontFace() {
      if (!this.data || this.disableFontFace) {
        return null;
      }

      var nativeFontFace = new FontFace(this.loadedName, this.data, {});

      if (this.fontRegistry) {
        this.fontRegistry.registerFont(this);
      }

      return nativeFontFace;
    }
  }, {
    key: "createFontFaceRule",
    value: function createFontFaceRule() {
      if (!this.data || this.disableFontFace) {
        return null;
      }

      var data = (0, _util.bytesToString)(new Uint8Array(this.data));
      var url = "url(data:".concat(this.mimetype, ";base64,").concat(btoa(data), ");");
      var rule = "@font-face {font-family:\"".concat(this.loadedName, "\";src:").concat(url, "}");

      if (this.fontRegistry) {
        this.fontRegistry.registerFont(this, url);
      }

      return rule;
    }
  }, {
    key: "getPathGenerator",
    value: function getPathGenerator(objs, character) {
      if (this.compiledGlyphs[character] !== undefined) {
        return this.compiledGlyphs[character];
      }

      var cmds, current;

      try {
        cmds = objs.get(this.loadedName + '_path_' + character);
      } catch (ex) {
        if (!this.ignoreErrors) {
          throw ex;
        }

        if (this._onUnsupportedFeature) {
          this._onUnsupportedFeature({
            featureId: _util.UNSUPPORTED_FEATURES.font
          });
        }

        (0, _util.warn)("getPathGenerator - ignoring character: \"".concat(ex, "\"."));
        return this.compiledGlyphs[character] = function (c, size) {};
      }

      if (this.isEvalSupported && IsEvalSupportedCached.value) {
        var args,
            js = '';

        for (var i = 0, ii = cmds.length; i < ii; i++) {
          current = cmds[i];

          if (current.args !== undefined) {
            args = current.args.join(',');
          } else {
            args = '';
          }

          js += 'c.' + current.cmd + '(' + args + ');\n';
        }

        return this.compiledGlyphs[character] = new Function('c', 'size', js);
      }

      return this.compiledGlyphs[character] = function (c, size) {
        for (var _i = 0, _ii = cmds.length; _i < _ii; _i++) {
          current = cmds[_i];

          if (current.cmd === 'scale') {
            current.args = [size, -size];
          }

          c[current.cmd].apply(c, current.args);
        }
      };
    }
  }]);

  return FontFaceObject;
}();

exports.FontFaceObject = FontFaceObject;

/***/ }),
/* 153 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


var compatibilityParams = Object.create(null);
{
  var isNodeJS = __w_pdfjs_require__(4);

  var userAgent = typeof navigator !== 'undefined' && navigator.userAgent || '';
  var isIE = /Trident/.test(userAgent);
  var isIOSChrome = /CriOS/.test(userAgent);

  (function checkOnBlobSupport() {
    if (isIE || isIOSChrome) {
      compatibilityParams.disableCreateObjectURL = true;
    }
  })();

  (function checkFontFaceAndImage() {
    if (isNodeJS()) {
      compatibilityParams.disableFontFace = true;
      compatibilityParams.nativeImageDecoderSupport = 'none';
    }
  })();
}
exports.apiCompatibilityParams = Object.freeze(compatibilityParams);

/***/ }),
/* 154 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.CanvasGraphics = void 0;

var _util = __w_pdfjs_require__(1);

var _pattern_helper = __w_pdfjs_require__(155);

var MIN_FONT_SIZE = 16;
var MAX_FONT_SIZE = 100;
var MAX_GROUP_SIZE = 4096;
var MIN_WIDTH_FACTOR = 0.65;
var COMPILE_TYPE3_GLYPHS = true;
var MAX_SIZE_TO_COMPILE = 1000;
var FULL_CHUNK_HEIGHT = 16;
var IsLittleEndianCached = {
  get value() {
    return (0, _util.shadow)(IsLittleEndianCached, 'value', (0, _util.isLittleEndian)());
  }

};

function addContextCurrentTransform(ctx) {
  if (!ctx.mozCurrentTransform) {
    ctx._originalSave = ctx.save;
    ctx._originalRestore = ctx.restore;
    ctx._originalRotate = ctx.rotate;
    ctx._originalScale = ctx.scale;
    ctx._originalTranslate = ctx.translate;
    ctx._originalTransform = ctx.transform;
    ctx._originalSetTransform = ctx.setTransform;
    ctx._transformMatrix = ctx._transformMatrix || [1, 0, 0, 1, 0, 0];
    ctx._transformStack = [];
    Object.defineProperty(ctx, 'mozCurrentTransform', {
      get: function getCurrentTransform() {
        return this._transformMatrix;
      }
    });
    Object.defineProperty(ctx, 'mozCurrentTransformInverse', {
      get: function getCurrentTransformInverse() {
        var m = this._transformMatrix;
        var a = m[0],
            b = m[1],
            c = m[2],
            d = m[3],
            e = m[4],
            f = m[5];
        var ad_bc = a * d - b * c;
        var bc_ad = b * c - a * d;
        return [d / ad_bc, b / bc_ad, c / bc_ad, a / ad_bc, (d * e - c * f) / bc_ad, (b * e - a * f) / ad_bc];
      }
    });

    ctx.save = function ctxSave() {
      var old = this._transformMatrix;

      this._transformStack.push(old);

      this._transformMatrix = old.slice(0, 6);

      this._originalSave();
    };

    ctx.restore = function ctxRestore() {
      var prev = this._transformStack.pop();

      if (prev) {
        this._transformMatrix = prev;

        this._originalRestore();
      }
    };

    ctx.translate = function ctxTranslate(x, y) {
      var m = this._transformMatrix;
      m[4] = m[0] * x + m[2] * y + m[4];
      m[5] = m[1] * x + m[3] * y + m[5];

      this._originalTranslate(x, y);
    };

    ctx.scale = function ctxScale(x, y) {
      var m = this._transformMatrix;
      m[0] = m[0] * x;
      m[1] = m[1] * x;
      m[2] = m[2] * y;
      m[3] = m[3] * y;

      this._originalScale(x, y);
    };

    ctx.transform = function ctxTransform(a, b, c, d, e, f) {
      var m = this._transformMatrix;
      this._transformMatrix = [m[0] * a + m[2] * b, m[1] * a + m[3] * b, m[0] * c + m[2] * d, m[1] * c + m[3] * d, m[0] * e + m[2] * f + m[4], m[1] * e + m[3] * f + m[5]];

      ctx._originalTransform(a, b, c, d, e, f);
    };

    ctx.setTransform = function ctxSetTransform(a, b, c, d, e, f) {
      this._transformMatrix = [a, b, c, d, e, f];

      ctx._originalSetTransform(a, b, c, d, e, f);
    };

    ctx.rotate = function ctxRotate(angle) {
      var cosValue = Math.cos(angle);
      var sinValue = Math.sin(angle);
      var m = this._transformMatrix;
      this._transformMatrix = [m[0] * cosValue + m[2] * sinValue, m[1] * cosValue + m[3] * sinValue, m[0] * -sinValue + m[2] * cosValue, m[1] * -sinValue + m[3] * cosValue, m[4], m[5]];

      this._originalRotate(angle);
    };
  }
}

var CachedCanvases = function CachedCanvasesClosure() {
  function CachedCanvases(canvasFactory) {
    this.canvasFactory = canvasFactory;
    this.cache = Object.create(null);
  }

  CachedCanvases.prototype = {
    getCanvas: function CachedCanvases_getCanvas(id, width, height, trackTransform) {
      var canvasEntry;

      if (this.cache[id] !== undefined) {
        canvasEntry = this.cache[id];
        this.canvasFactory.reset(canvasEntry, width, height);
        canvasEntry.context.setTransform(1, 0, 0, 1, 0, 0);
      } else {
        canvasEntry = this.canvasFactory.create(width, height);
        this.cache[id] = canvasEntry;
      }

      if (trackTransform) {
        addContextCurrentTransform(canvasEntry.context);
      }

      return canvasEntry;
    },
    clear: function clear() {
      for (var id in this.cache) {
        var canvasEntry = this.cache[id];
        this.canvasFactory.destroy(canvasEntry);
        delete this.cache[id];
      }
    }
  };
  return CachedCanvases;
}();

function compileType3Glyph(imgData) {
  var POINT_TO_PROCESS_LIMIT = 1000;
  var width = imgData.width,
      height = imgData.height;
  var i,
      j,
      j0,
      width1 = width + 1;
  var points = new Uint8Array(width1 * (height + 1));
  var POINT_TYPES = new Uint8Array([0, 2, 4, 0, 1, 0, 5, 4, 8, 10, 0, 8, 0, 2, 1, 0]);
  var lineSize = width + 7 & ~7,
      data0 = imgData.data;
  var data = new Uint8Array(lineSize * height),
      pos = 0,
      ii;

  for (i = 0, ii = data0.length; i < ii; i++) {
    var mask = 128,
        elem = data0[i];

    while (mask > 0) {
      data[pos++] = elem & mask ? 0 : 255;
      mask >>= 1;
    }
  }

  var count = 0;
  pos = 0;

  if (data[pos] !== 0) {
    points[0] = 1;
    ++count;
  }

  for (j = 1; j < width; j++) {
    if (data[pos] !== data[pos + 1]) {
      points[j] = data[pos] ? 2 : 1;
      ++count;
    }

    pos++;
  }

  if (data[pos] !== 0) {
    points[j] = 2;
    ++count;
  }

  for (i = 1; i < height; i++) {
    pos = i * lineSize;
    j0 = i * width1;

    if (data[pos - lineSize] !== data[pos]) {
      points[j0] = data[pos] ? 1 : 8;
      ++count;
    }

    var sum = (data[pos] ? 4 : 0) + (data[pos - lineSize] ? 8 : 0);

    for (j = 1; j < width; j++) {
      sum = (sum >> 2) + (data[pos + 1] ? 4 : 0) + (data[pos - lineSize + 1] ? 8 : 0);

      if (POINT_TYPES[sum]) {
        points[j0 + j] = POINT_TYPES[sum];
        ++count;
      }

      pos++;
    }

    if (data[pos - lineSize] !== data[pos]) {
      points[j0 + j] = data[pos] ? 2 : 4;
      ++count;
    }

    if (count > POINT_TO_PROCESS_LIMIT) {
      return null;
    }
  }

  pos = lineSize * (height - 1);
  j0 = i * width1;

  if (data[pos] !== 0) {
    points[j0] = 8;
    ++count;
  }

  for (j = 1; j < width; j++) {
    if (data[pos] !== data[pos + 1]) {
      points[j0 + j] = data[pos] ? 4 : 8;
      ++count;
    }

    pos++;
  }

  if (data[pos] !== 0) {
    points[j0 + j] = 4;
    ++count;
  }

  if (count > POINT_TO_PROCESS_LIMIT) {
    return null;
  }

  var steps = new Int32Array([0, width1, -1, 0, -width1, 0, 0, 0, 1]);
  var outlines = [];

  for (i = 0; count && i <= height; i++) {
    var p = i * width1;
    var end = p + width;

    while (p < end && !points[p]) {
      p++;
    }

    if (p === end) {
      continue;
    }

    var coords = [p % width1, i];
    var type = points[p],
        p0 = p,
        pp;

    do {
      var step = steps[type];

      do {
        p += step;
      } while (!points[p]);

      pp = points[p];

      if (pp !== 5 && pp !== 10) {
        type = pp;
        points[p] = 0;
      } else {
        type = pp & 0x33 * type >> 4;
        points[p] &= type >> 2 | type << 2;
      }

      coords.push(p % width1);
      coords.push(p / width1 | 0);

      if (!points[p]) {
        --count;
      }
    } while (p0 !== p);

    outlines.push(coords);
    --i;
  }

  var drawOutline = function drawOutline(c) {
    c.save();
    c.scale(1 / width, -1 / height);
    c.translate(0, -height);
    c.beginPath();

    for (var i = 0, ii = outlines.length; i < ii; i++) {
      var o = outlines[i];
      c.moveTo(o[0], o[1]);

      for (var j = 2, jj = o.length; j < jj; j += 2) {
        c.lineTo(o[j], o[j + 1]);
      }
    }

    c.fill();
    c.beginPath();
    c.restore();
  };

  return drawOutline;
}

var CanvasExtraState = function CanvasExtraStateClosure() {
  function CanvasExtraState() {
    this.alphaIsShape = false;
    this.fontSize = 0;
    this.fontSizeScale = 1;
    this.textMatrix = _util.IDENTITY_MATRIX;
    this.textMatrixScale = 1;
    this.fontMatrix = _util.FONT_IDENTITY_MATRIX;
    this.leading = 0;
    this.x = 0;
    this.y = 0;
    this.lineX = 0;
    this.lineY = 0;
    this.charSpacing = 0;
    this.wordSpacing = 0;
    this.textHScale = 1;
    this.textRenderingMode = _util.TextRenderingMode.FILL;
    this.textRise = 0;
    this.fillColor = '#000000';
    this.strokeColor = '#000000';
    this.patternFill = false;
    this.fillAlpha = 1;
    this.strokeAlpha = 1;
    this.lineWidth = 1;
    this.activeSMask = null;
    this.resumeSMaskCtx = null;
  }

  CanvasExtraState.prototype = {
    clone: function CanvasExtraState_clone() {
      return Object.create(this);
    },
    setCurrentPoint: function CanvasExtraState_setCurrentPoint(x, y) {
      this.x = x;
      this.y = y;
    }
  };
  return CanvasExtraState;
}();

var CanvasGraphics = function CanvasGraphicsClosure() {
  var EXECUTION_TIME = 15;
  var EXECUTION_STEPS = 10;

  function CanvasGraphics(canvasCtx, commonObjs, objs, canvasFactory, webGLContext, imageLayer) {
    this.ctx = canvasCtx;
    this.current = new CanvasExtraState();
    this.stateStack = [];
    this.pendingClip = null;
    this.pendingEOFill = false;
    this.res = null;
    this.xobjs = null;
    this.commonObjs = commonObjs;
    this.objs = objs;
    this.canvasFactory = canvasFactory;
    this.webGLContext = webGLContext;
    this.imageLayer = imageLayer;
    this.groupStack = [];
    this.processingType3 = null;
    this.baseTransform = null;
    this.baseTransformStack = [];
    this.groupLevel = 0;
    this.smaskStack = [];
    this.smaskCounter = 0;
    this.tempSMask = null;
    this.cachedCanvases = new CachedCanvases(this.canvasFactory);

    if (canvasCtx) {
      addContextCurrentTransform(canvasCtx);
    }

    this._cachedGetSinglePixelWidth = null;
  }

  function putBinaryImageData(ctx, imgData) {
    if (typeof ImageData !== 'undefined' && imgData instanceof ImageData) {
      ctx.putImageData(imgData, 0, 0);
      return;
    }

    var height = imgData.height,
        width = imgData.width;
    var partialChunkHeight = height % FULL_CHUNK_HEIGHT;
    var fullChunks = (height - partialChunkHeight) / FULL_CHUNK_HEIGHT;
    var totalChunks = partialChunkHeight === 0 ? fullChunks : fullChunks + 1;
    var chunkImgData = ctx.createImageData(width, FULL_CHUNK_HEIGHT);
    var srcPos = 0,
        destPos;
    var src = imgData.data;
    var dest = chunkImgData.data;
    var i, j, thisChunkHeight, elemsInThisChunk;

    if (imgData.kind === _util.ImageKind.GRAYSCALE_1BPP) {
      var srcLength = src.byteLength;
      var dest32 = new Uint32Array(dest.buffer, 0, dest.byteLength >> 2);
      var dest32DataLength = dest32.length;
      var fullSrcDiff = width + 7 >> 3;
      var white = 0xFFFFFFFF;
      var black = IsLittleEndianCached.value ? 0xFF000000 : 0x000000FF;

      for (i = 0; i < totalChunks; i++) {
        thisChunkHeight = i < fullChunks ? FULL_CHUNK_HEIGHT : partialChunkHeight;
        destPos = 0;

        for (j = 0; j < thisChunkHeight; j++) {
          var srcDiff = srcLength - srcPos;
          var k = 0;
          var kEnd = srcDiff > fullSrcDiff ? width : srcDiff * 8 - 7;
          var kEndUnrolled = kEnd & ~7;
          var mask = 0;
          var srcByte = 0;

          for (; k < kEndUnrolled; k += 8) {
            srcByte = src[srcPos++];
            dest32[destPos++] = srcByte & 128 ? white : black;
            dest32[destPos++] = srcByte & 64 ? white : black;
            dest32[destPos++] = srcByte & 32 ? white : black;
            dest32[destPos++] = srcByte & 16 ? white : black;
            dest32[destPos++] = srcByte & 8 ? white : black;
            dest32[destPos++] = srcByte & 4 ? white : black;
            dest32[destPos++] = srcByte & 2 ? white : black;
            dest32[destPos++] = srcByte & 1 ? white : black;
          }

          for (; k < kEnd; k++) {
            if (mask === 0) {
              srcByte = src[srcPos++];
              mask = 128;
            }

            dest32[destPos++] = srcByte & mask ? white : black;
            mask >>= 1;
          }
        }

        while (destPos < dest32DataLength) {
          dest32[destPos++] = 0;
        }

        ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT);
      }
    } else if (imgData.kind === _util.ImageKind.RGBA_32BPP) {
      j = 0;
      elemsInThisChunk = width * FULL_CHUNK_HEIGHT * 4;

      for (i = 0; i < fullChunks; i++) {
        dest.set(src.subarray(srcPos, srcPos + elemsInThisChunk));
        srcPos += elemsInThisChunk;
        ctx.putImageData(chunkImgData, 0, j);
        j += FULL_CHUNK_HEIGHT;
      }

      if (i < totalChunks) {
        elemsInThisChunk = width * partialChunkHeight * 4;
        dest.set(src.subarray(srcPos, srcPos + elemsInThisChunk));
        ctx.putImageData(chunkImgData, 0, j);
      }
    } else if (imgData.kind === _util.ImageKind.RGB_24BPP) {
      thisChunkHeight = FULL_CHUNK_HEIGHT;
      elemsInThisChunk = width * thisChunkHeight;

      for (i = 0; i < totalChunks; i++) {
        if (i >= fullChunks) {
          thisChunkHeight = partialChunkHeight;
          elemsInThisChunk = width * thisChunkHeight;
        }

        destPos = 0;

        for (j = elemsInThisChunk; j--;) {
          dest[destPos++] = src[srcPos++];
          dest[destPos++] = src[srcPos++];
          dest[destPos++] = src[srcPos++];
          dest[destPos++] = 255;
        }

        ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT);
      }
    } else {
      throw new Error("bad image kind: ".concat(imgData.kind));
    }
  }

  function putBinaryImageMask(ctx, imgData) {
    var height = imgData.height,
        width = imgData.width;
    var partialChunkHeight = height % FULL_CHUNK_HEIGHT;
    var fullChunks = (height - partialChunkHeight) / FULL_CHUNK_HEIGHT;
    var totalChunks = partialChunkHeight === 0 ? fullChunks : fullChunks + 1;
    var chunkImgData = ctx.createImageData(width, FULL_CHUNK_HEIGHT);
    var srcPos = 0;
    var src = imgData.data;
    var dest = chunkImgData.data;

    for (var i = 0; i < totalChunks; i++) {
      var thisChunkHeight = i < fullChunks ? FULL_CHUNK_HEIGHT : partialChunkHeight;
      var destPos = 3;

      for (var j = 0; j < thisChunkHeight; j++) {
        var mask = 0;

        for (var k = 0; k < width; k++) {
          if (!mask) {
            var elem = src[srcPos++];
            mask = 128;
          }

          dest[destPos] = elem & mask ? 0 : 255;
          destPos += 4;
          mask >>= 1;
        }
      }

      ctx.putImageData(chunkImgData, 0, i * FULL_CHUNK_HEIGHT);
    }
  }

  function copyCtxState(sourceCtx, destCtx) {
    var properties = ['strokeStyle', 'fillStyle', 'fillRule', 'globalAlpha', 'lineWidth', 'lineCap', 'lineJoin', 'miterLimit', 'globalCompositeOperation', 'font'];

    for (var i = 0, ii = properties.length; i < ii; i++) {
      var property = properties[i];

      if (sourceCtx[property] !== undefined) {
        destCtx[property] = sourceCtx[property];
      }
    }

    if (sourceCtx.setLineDash !== undefined) {
      destCtx.setLineDash(sourceCtx.getLineDash());
      destCtx.lineDashOffset = sourceCtx.lineDashOffset;
    }
  }

  function resetCtxToDefault(ctx) {
    ctx.strokeStyle = '#000000';
    ctx.fillStyle = '#000000';
    ctx.fillRule = 'nonzero';
    ctx.globalAlpha = 1;
    ctx.lineWidth = 1;
    ctx.lineCap = 'butt';
    ctx.lineJoin = 'miter';
    ctx.miterLimit = 10;
    ctx.globalCompositeOperation = 'source-over';
    ctx.font = '10px sans-serif';

    if (ctx.setLineDash !== undefined) {
      ctx.setLineDash([]);
      ctx.lineDashOffset = 0;
    }
  }

  function composeSMaskBackdrop(bytes, r0, g0, b0) {
    var length = bytes.length;

    for (var i = 3; i < length; i += 4) {
      var alpha = bytes[i];

      if (alpha === 0) {
        bytes[i - 3] = r0;
        bytes[i - 2] = g0;
        bytes[i - 1] = b0;
      } else if (alpha < 255) {
        var alpha_ = 255 - alpha;
        bytes[i - 3] = bytes[i - 3] * alpha + r0 * alpha_ >> 8;
        bytes[i - 2] = bytes[i - 2] * alpha + g0 * alpha_ >> 8;
        bytes[i - 1] = bytes[i - 1] * alpha + b0 * alpha_ >> 8;
      }
    }
  }

  function composeSMaskAlpha(maskData, layerData, transferMap) {
    var length = maskData.length;
    var scale = 1 / 255;

    for (var i = 3; i < length; i += 4) {
      var alpha = transferMap ? transferMap[maskData[i]] : maskData[i];
      layerData[i] = layerData[i] * alpha * scale | 0;
    }
  }

  function composeSMaskLuminosity(maskData, layerData, transferMap) {
    var length = maskData.length;

    for (var i = 3; i < length; i += 4) {
      var y = maskData[i - 3] * 77 + maskData[i - 2] * 152 + maskData[i - 1] * 28;
      layerData[i] = transferMap ? layerData[i] * transferMap[y >> 8] >> 8 : layerData[i] * y >> 16;
    }
  }

  function genericComposeSMask(maskCtx, layerCtx, width, height, subtype, backdrop, transferMap) {
    var hasBackdrop = !!backdrop;
    var r0 = hasBackdrop ? backdrop[0] : 0;
    var g0 = hasBackdrop ? backdrop[1] : 0;
    var b0 = hasBackdrop ? backdrop[2] : 0;
    var composeFn;

    if (subtype === 'Luminosity') {
      composeFn = composeSMaskLuminosity;
    } else {
      composeFn = composeSMaskAlpha;
    }

    var PIXELS_TO_PROCESS = 1048576;
    var chunkSize = Math.min(height, Math.ceil(PIXELS_TO_PROCESS / width));

    for (var row = 0; row < height; row += chunkSize) {
      var chunkHeight = Math.min(chunkSize, height - row);
      var maskData = maskCtx.getImageData(0, row, width, chunkHeight);
      var layerData = layerCtx.getImageData(0, row, width, chunkHeight);

      if (hasBackdrop) {
        composeSMaskBackdrop(maskData.data, r0, g0, b0);
      }

      composeFn(maskData.data, layerData.data, transferMap);
      maskCtx.putImageData(layerData, 0, row);
    }
  }

  function composeSMask(ctx, smask, layerCtx, webGLContext) {
    var mask = smask.canvas;
    var maskCtx = smask.context;
    ctx.setTransform(smask.scaleX, 0, 0, smask.scaleY, smask.offsetX, smask.offsetY);
    var backdrop = smask.backdrop || null;

    if (!smask.transferMap && webGLContext.isEnabled) {
      var composed = webGLContext.composeSMask({
        layer: layerCtx.canvas,
        mask: mask,
        properties: {
          subtype: smask.subtype,
          backdrop: backdrop
        }
      });
      ctx.setTransform(1, 0, 0, 1, 0, 0);
      ctx.drawImage(composed, smask.offsetX, smask.offsetY);
      return;
    }

    genericComposeSMask(maskCtx, layerCtx, mask.width, mask.height, smask.subtype, backdrop, smask.transferMap);
    ctx.drawImage(mask, 0, 0);
  }

  var LINE_CAP_STYLES = ['butt', 'round', 'square'];
  var LINE_JOIN_STYLES = ['miter', 'round', 'bevel'];
  var NORMAL_CLIP = {};
  var EO_CLIP = {};
  CanvasGraphics.prototype = {
    beginDrawing: function beginDrawing(_ref) {
      var transform = _ref.transform,
          viewport = _ref.viewport,
          _ref$transparency = _ref.transparency,
          transparency = _ref$transparency === void 0 ? false : _ref$transparency,
          _ref$background = _ref.background,
          background = _ref$background === void 0 ? null : _ref$background;
      var width = this.ctx.canvas.width;
      var height = this.ctx.canvas.height;
      this.ctx.save();
      this.ctx.fillStyle = background || 'rgb(255, 255, 255)';
      this.ctx.fillRect(0, 0, width, height);
      this.ctx.restore();

      if (transparency) {
        var transparentCanvas = this.cachedCanvases.getCanvas('transparent', width, height, true);
        this.compositeCtx = this.ctx;
        this.transparentCanvas = transparentCanvas.canvas;
        this.ctx = transparentCanvas.context;
        this.ctx.save();
        this.ctx.transform.apply(this.ctx, this.compositeCtx.mozCurrentTransform);
      }

      this.ctx.save();
      resetCtxToDefault(this.ctx);

      if (transform) {
        this.ctx.transform.apply(this.ctx, transform);
      }

      this.ctx.transform.apply(this.ctx, viewport.transform);
      this.baseTransform = this.ctx.mozCurrentTransform.slice();

      if (this.imageLayer) {
        this.imageLayer.beginLayout();
      }
    },
    executeOperatorList: function CanvasGraphics_executeOperatorList(operatorList, executionStartIdx, continueCallback, stepper) {
      var argsArray = operatorList.argsArray;
      var fnArray = operatorList.fnArray;
      var i = executionStartIdx || 0;
      var argsArrayLen = argsArray.length;

      if (argsArrayLen === i) {
        return i;
      }

      var chunkOperations = argsArrayLen - i > EXECUTION_STEPS && typeof continueCallback === 'function';
      var endTime = chunkOperations ? Date.now() + EXECUTION_TIME : 0;
      var steps = 0;
      var commonObjs = this.commonObjs;
      var objs = this.objs;
      var fnId;

      while (true) {
        if (stepper !== undefined && i === stepper.nextBreakPoint) {
          stepper.breakIt(i, continueCallback);
          return i;
        }

        fnId = fnArray[i];

        if (fnId !== _util.OPS.dependency) {
          this[fnId].apply(this, argsArray[i]);
        } else {
          var _iteratorNormalCompletion = true;
          var _didIteratorError = false;
          var _iteratorError = undefined;

          try {
            for (var _iterator = argsArray[i][Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
              var depObjId = _step.value;
              var objsPool = depObjId.startsWith('g_') ? commonObjs : objs;

              if (!objsPool.has(depObjId)) {
                objsPool.get(depObjId, continueCallback);
                return i;
              }
            }
          } catch (err) {
            _didIteratorError = true;
            _iteratorError = err;
          } finally {
            try {
              if (!_iteratorNormalCompletion && _iterator["return"] != null) {
                _iterator["return"]();
              }
            } finally {
              if (_didIteratorError) {
                throw _iteratorError;
              }
            }
          }
        }

        i++;

        if (i === argsArrayLen) {
          return i;
        }

        if (chunkOperations && ++steps > EXECUTION_STEPS) {
          if (Date.now() > endTime) {
            continueCallback();
            return i;
          }

          steps = 0;
        }
      }
    },
    endDrawing: function CanvasGraphics_endDrawing() {
      if (this.current.activeSMask !== null) {
        this.endSMaskGroup();
      }

      this.ctx.restore();

      if (this.transparentCanvas) {
        this.ctx = this.compositeCtx;
        this.ctx.save();
        this.ctx.setTransform(1, 0, 0, 1, 0, 0);
        this.ctx.drawImage(this.transparentCanvas, 0, 0);
        this.ctx.restore();
        this.transparentCanvas = null;
      }

      this.cachedCanvases.clear();
      this.webGLContext.clear();

      if (this.imageLayer) {
        this.imageLayer.endLayout();
      }
    },
    setLineWidth: function CanvasGraphics_setLineWidth(width) {
      this.current.lineWidth = width;
      this.ctx.lineWidth = width;
    },
    setLineCap: function CanvasGraphics_setLineCap(style) {
      this.ctx.lineCap = LINE_CAP_STYLES[style];
    },
    setLineJoin: function CanvasGraphics_setLineJoin(style) {
      this.ctx.lineJoin = LINE_JOIN_STYLES[style];
    },
    setMiterLimit: function CanvasGraphics_setMiterLimit(limit) {
      this.ctx.miterLimit = limit;
    },
    setDash: function CanvasGraphics_setDash(dashArray, dashPhase) {
      var ctx = this.ctx;

      if (ctx.setLineDash !== undefined) {
        ctx.setLineDash(dashArray);
        ctx.lineDashOffset = dashPhase;
      }
    },
    setRenderingIntent: function setRenderingIntent(intent) {},
    setFlatness: function setFlatness(flatness) {},
    setGState: function CanvasGraphics_setGState(states) {
      for (var i = 0, ii = states.length; i < ii; i++) {
        var state = states[i];
        var key = state[0];
        var value = state[1];

        switch (key) {
          case 'LW':
            this.setLineWidth(value);
            break;

          case 'LC':
            this.setLineCap(value);
            break;

          case 'LJ':
            this.setLineJoin(value);
            break;

          case 'ML':
            this.setMiterLimit(value);
            break;

          case 'D':
            this.setDash(value[0], value[1]);
            break;

          case 'RI':
            this.setRenderingIntent(value);
            break;

          case 'FL':
            this.setFlatness(value);
            break;

          case 'Font':
            this.setFont(value[0], value[1]);
            break;

          case 'CA':
            this.current.strokeAlpha = state[1];
            break;

          case 'ca':
            this.current.fillAlpha = state[1];
            this.ctx.globalAlpha = state[1];
            break;

          case 'BM':
            this.ctx.globalCompositeOperation = value;
            break;

          case 'SMask':
            if (this.current.activeSMask) {
              if (this.stateStack.length > 0 && this.stateStack[this.stateStack.length - 1].activeSMask === this.current.activeSMask) {
                this.suspendSMaskGroup();
              } else {
                this.endSMaskGroup();
              }
            }

            this.current.activeSMask = value ? this.tempSMask : null;

            if (this.current.activeSMask) {
              this.beginSMaskGroup();
            }

            this.tempSMask = null;
            break;
        }
      }
    },
    beginSMaskGroup: function CanvasGraphics_beginSMaskGroup() {
      var activeSMask = this.current.activeSMask;
      var drawnWidth = activeSMask.canvas.width;
      var drawnHeight = activeSMask.canvas.height;
      var cacheId = 'smaskGroupAt' + this.groupLevel;
      var scratchCanvas = this.cachedCanvases.getCanvas(cacheId, drawnWidth, drawnHeight, true);
      var currentCtx = this.ctx;
      var currentTransform = currentCtx.mozCurrentTransform;
      this.ctx.save();
      var groupCtx = scratchCanvas.context;
      groupCtx.scale(1 / activeSMask.scaleX, 1 / activeSMask.scaleY);
      groupCtx.translate(-activeSMask.offsetX, -activeSMask.offsetY);
      groupCtx.transform.apply(groupCtx, currentTransform);
      activeSMask.startTransformInverse = groupCtx.mozCurrentTransformInverse;
      copyCtxState(currentCtx, groupCtx);
      this.ctx = groupCtx;
      this.setGState([['BM', 'source-over'], ['ca', 1], ['CA', 1]]);
      this.groupStack.push(currentCtx);
      this.groupLevel++;
    },
    suspendSMaskGroup: function CanvasGraphics_endSMaskGroup() {
      var groupCtx = this.ctx;
      this.groupLevel--;
      this.ctx = this.groupStack.pop();
      composeSMask(this.ctx, this.current.activeSMask, groupCtx, this.webGLContext);
      this.ctx.restore();
      this.ctx.save();
      copyCtxState(groupCtx, this.ctx);
      this.current.resumeSMaskCtx = groupCtx;

      var deltaTransform = _util.Util.transform(this.current.activeSMask.startTransformInverse, groupCtx.mozCurrentTransform);

      this.ctx.transform.apply(this.ctx, deltaTransform);
      groupCtx.save();
      groupCtx.setTransform(1, 0, 0, 1, 0, 0);
      groupCtx.clearRect(0, 0, groupCtx.canvas.width, groupCtx.canvas.height);
      groupCtx.restore();
    },
    resumeSMaskGroup: function CanvasGraphics_endSMaskGroup() {
      var groupCtx = this.current.resumeSMaskCtx;
      var currentCtx = this.ctx;
      this.ctx = groupCtx;
      this.groupStack.push(currentCtx);
      this.groupLevel++;
    },
    endSMaskGroup: function CanvasGraphics_endSMaskGroup() {
      var groupCtx = this.ctx;
      this.groupLevel--;
      this.ctx = this.groupStack.pop();
      composeSMask(this.ctx, this.current.activeSMask, groupCtx, this.webGLContext);
      this.ctx.restore();
      copyCtxState(groupCtx, this.ctx);

      var deltaTransform = _util.Util.transform(this.current.activeSMask.startTransformInverse, groupCtx.mozCurrentTransform);

      this.ctx.transform.apply(this.ctx, deltaTransform);
    },
    save: function CanvasGraphics_save() {
      this.ctx.save();
      var old = this.current;
      this.stateStack.push(old);
      this.current = old.clone();
      this.current.resumeSMaskCtx = null;
    },
    restore: function CanvasGraphics_restore() {
      if (this.current.resumeSMaskCtx) {
        this.resumeSMaskGroup();
      }

      if (this.current.activeSMask !== null && (this.stateStack.length === 0 || this.stateStack[this.stateStack.length - 1].activeSMask !== this.current.activeSMask)) {
        this.endSMaskGroup();
      }

      if (this.stateStack.length !== 0) {
        this.current = this.stateStack.pop();
        this.ctx.restore();
        this.pendingClip = null;
        this._cachedGetSinglePixelWidth = null;
      }
    },
    transform: function CanvasGraphics_transform(a, b, c, d, e, f) {
      this.ctx.transform(a, b, c, d, e, f);
      this._cachedGetSinglePixelWidth = null;
    },
    constructPath: function CanvasGraphics_constructPath(ops, args) {
      var ctx = this.ctx;
      var current = this.current;
      var x = current.x,
          y = current.y;

      for (var i = 0, j = 0, ii = ops.length; i < ii; i++) {
        switch (ops[i] | 0) {
          case _util.OPS.rectangle:
            x = args[j++];
            y = args[j++];
            var width = args[j++];
            var height = args[j++];

            if (width === 0) {
              width = this.getSinglePixelWidth();
            }

            if (height === 0) {
              height = this.getSinglePixelWidth();
            }

            var xw = x + width;
            var yh = y + height;
            this.ctx.moveTo(x, y);
            this.ctx.lineTo(xw, y);
            this.ctx.lineTo(xw, yh);
            this.ctx.lineTo(x, yh);
            this.ctx.lineTo(x, y);
            this.ctx.closePath();
            break;

          case _util.OPS.moveTo:
            x = args[j++];
            y = args[j++];
            ctx.moveTo(x, y);
            break;

          case _util.OPS.lineTo:
            x = args[j++];
            y = args[j++];
            ctx.lineTo(x, y);
            break;

          case _util.OPS.curveTo:
            x = args[j + 4];
            y = args[j + 5];
            ctx.bezierCurveTo(args[j], args[j + 1], args[j + 2], args[j + 3], x, y);
            j += 6;
            break;

          case _util.OPS.curveTo2:
            ctx.bezierCurveTo(x, y, args[j], args[j + 1], args[j + 2], args[j + 3]);
            x = args[j + 2];
            y = args[j + 3];
            j += 4;
            break;

          case _util.OPS.curveTo3:
            x = args[j + 2];
            y = args[j + 3];
            ctx.bezierCurveTo(args[j], args[j + 1], x, y, x, y);
            j += 4;
            break;

          case _util.OPS.closePath:
            ctx.closePath();
            break;
        }
      }

      current.setCurrentPoint(x, y);
    },
    closePath: function CanvasGraphics_closePath() {
      this.ctx.closePath();
    },
    stroke: function CanvasGraphics_stroke(consumePath) {
      consumePath = typeof consumePath !== 'undefined' ? consumePath : true;
      var ctx = this.ctx;
      var strokeColor = this.current.strokeColor;
      ctx.globalAlpha = this.current.strokeAlpha;

      if (strokeColor && strokeColor.hasOwnProperty('type') && strokeColor.type === 'Pattern') {
        ctx.save();
        var transform = ctx.mozCurrentTransform;

        var scale = _util.Util.singularValueDecompose2dScale(transform)[0];

        ctx.strokeStyle = strokeColor.getPattern(ctx, this);
        ctx.lineWidth = Math.max(this.getSinglePixelWidth() * MIN_WIDTH_FACTOR, this.current.lineWidth * scale);
        ctx.stroke();
        ctx.restore();
      } else {
        ctx.lineWidth = Math.max(this.getSinglePixelWidth() * MIN_WIDTH_FACTOR, this.current.lineWidth);
        ctx.stroke();
      }

      if (consumePath) {
        this.consumePath();
      }

      ctx.globalAlpha = this.current.fillAlpha;
    },
    closeStroke: function CanvasGraphics_closeStroke() {
      this.closePath();
      this.stroke();
    },
    fill: function CanvasGraphics_fill(consumePath) {
      consumePath = typeof consumePath !== 'undefined' ? consumePath : true;
      var ctx = this.ctx;
      var fillColor = this.current.fillColor;
      var isPatternFill = this.current.patternFill;
      var needRestore = false;

      if (isPatternFill) {
        ctx.save();

        if (this.baseTransform) {
          ctx.setTransform.apply(ctx, this.baseTransform);
        }

        ctx.fillStyle = fillColor.getPattern(ctx, this);
        needRestore = true;
      }

      if (this.pendingEOFill) {
        ctx.fill('evenodd');
        this.pendingEOFill = false;
      } else {
        ctx.fill();
      }

      if (needRestore) {
        ctx.restore();
      }

      if (consumePath) {
        this.consumePath();
      }
    },
    eoFill: function CanvasGraphics_eoFill() {
      this.pendingEOFill = true;
      this.fill();
    },
    fillStroke: function CanvasGraphics_fillStroke() {
      this.fill(false);
      this.stroke(false);
      this.consumePath();
    },
    eoFillStroke: function CanvasGraphics_eoFillStroke() {
      this.pendingEOFill = true;
      this.fillStroke();
    },
    closeFillStroke: function CanvasGraphics_closeFillStroke() {
      this.closePath();
      this.fillStroke();
    },
    closeEOFillStroke: function CanvasGraphics_closeEOFillStroke() {
      this.pendingEOFill = true;
      this.closePath();
      this.fillStroke();
    },
    endPath: function CanvasGraphics_endPath() {
      this.consumePath();
    },
    clip: function CanvasGraphics_clip() {
      this.pendingClip = NORMAL_CLIP;
    },
    eoClip: function CanvasGraphics_eoClip() {
      this.pendingClip = EO_CLIP;
    },
    beginText: function CanvasGraphics_beginText() {
      this.current.textMatrix = _util.IDENTITY_MATRIX;
      this.current.textMatrixScale = 1;
      this.current.x = this.current.lineX = 0;
      this.current.y = this.current.lineY = 0;
    },
    endText: function CanvasGraphics_endText() {
      var paths = this.pendingTextPaths;
      var ctx = this.ctx;

      if (paths === undefined) {
        ctx.beginPath();
        return;
      }

      ctx.save();
      ctx.beginPath();

      for (var i = 0; i < paths.length; i++) {
        var path = paths[i];
        ctx.setTransform.apply(ctx, path.transform);
        ctx.translate(path.x, path.y);
        path.addToPath(ctx, path.fontSize);
      }

      ctx.restore();
      ctx.clip();
      ctx.beginPath();
      delete this.pendingTextPaths;
    },
    setCharSpacing: function CanvasGraphics_setCharSpacing(spacing) {
      this.current.charSpacing = spacing;
    },
    setWordSpacing: function CanvasGraphics_setWordSpacing(spacing) {
      this.current.wordSpacing = spacing;
    },
    setHScale: function CanvasGraphics_setHScale(scale) {
      this.current.textHScale = scale / 100;
    },
    setLeading: function CanvasGraphics_setLeading(leading) {
      this.current.leading = -leading;
    },
    setFont: function CanvasGraphics_setFont(fontRefName, size) {
      var fontObj = this.commonObjs.get(fontRefName);
      var current = this.current;

      if (!fontObj) {
        throw new Error("Can't find font for ".concat(fontRefName));
      }

      current.fontMatrix = fontObj.fontMatrix ? fontObj.fontMatrix : _util.FONT_IDENTITY_MATRIX;

      if (current.fontMatrix[0] === 0 || current.fontMatrix[3] === 0) {
        (0, _util.warn)('Invalid font matrix for font ' + fontRefName);
      }

      if (size < 0) {
        size = -size;
        current.fontDirection = -1;
      } else {
        current.fontDirection = 1;
      }

      this.current.font = fontObj;
      this.current.fontSize = size;

      if (fontObj.isType3Font) {
        return;
      }

      var name = fontObj.loadedName || 'sans-serif';
      var bold = fontObj.black ? '900' : fontObj.bold ? 'bold' : 'normal';
      var italic = fontObj.italic ? 'italic' : 'normal';
      var typeface = "\"".concat(name, "\", ").concat(fontObj.fallbackName);
      var browserFontSize = size < MIN_FONT_SIZE ? MIN_FONT_SIZE : size > MAX_FONT_SIZE ? MAX_FONT_SIZE : size;
      this.current.fontSizeScale = size / browserFontSize;
      this.ctx.font = "".concat(italic, " ").concat(bold, " ").concat(browserFontSize, "px ").concat(typeface);
    },
    setTextRenderingMode: function CanvasGraphics_setTextRenderingMode(mode) {
      this.current.textRenderingMode = mode;
    },
    setTextRise: function CanvasGraphics_setTextRise(rise) {
      this.current.textRise = rise;
    },
    moveText: function CanvasGraphics_moveText(x, y) {
      this.current.x = this.current.lineX += x;
      this.current.y = this.current.lineY += y;
    },
    setLeadingMoveText: function CanvasGraphics_setLeadingMoveText(x, y) {
      this.setLeading(-y);
      this.moveText(x, y);
    },
    setTextMatrix: function CanvasGraphics_setTextMatrix(a, b, c, d, e, f) {
      this.current.textMatrix = [a, b, c, d, e, f];
      this.current.textMatrixScale = Math.sqrt(a * a + b * b);
      this.current.x = this.current.lineX = 0;
      this.current.y = this.current.lineY = 0;
    },
    nextLine: function CanvasGraphics_nextLine() {
      this.moveText(0, this.current.leading);
    },
    paintChar: function paintChar(character, x, y, patternTransform) {
      var ctx = this.ctx;
      var current = this.current;
      var font = current.font;
      var textRenderingMode = current.textRenderingMode;
      var fontSize = current.fontSize / current.fontSizeScale;
      var fillStrokeMode = textRenderingMode & _util.TextRenderingMode.FILL_STROKE_MASK;
      var isAddToPathSet = !!(textRenderingMode & _util.TextRenderingMode.ADD_TO_PATH_FLAG);
      var patternFill = current.patternFill && font.data;
      var addToPath;

      if (font.disableFontFace || isAddToPathSet || patternFill) {
        addToPath = font.getPathGenerator(this.commonObjs, character);
      }

      if (font.disableFontFace || patternFill) {
        ctx.save();
        ctx.translate(x, y);
        ctx.beginPath();
        addToPath(ctx, fontSize);

        if (patternTransform) {
          ctx.setTransform.apply(ctx, patternTransform);
        }

        if (fillStrokeMode === _util.TextRenderingMode.FILL || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
          ctx.fill();
        }

        if (fillStrokeMode === _util.TextRenderingMode.STROKE || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
          ctx.stroke();
        }

        ctx.restore();
      } else {
        if (fillStrokeMode === _util.TextRenderingMode.FILL || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
          ctx.fillText(character, x, y);
        }

        if (fillStrokeMode === _util.TextRenderingMode.STROKE || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
          ctx.strokeText(character, x, y);
        }
      }

      if (isAddToPathSet) {
        var paths = this.pendingTextPaths || (this.pendingTextPaths = []);
        paths.push({
          transform: ctx.mozCurrentTransform,
          x: x,
          y: y,
          fontSize: fontSize,
          addToPath: addToPath
        });
      }
    },

    get isFontSubpixelAAEnabled() {
      var _this$cachedCanvases$ = this.cachedCanvases.getCanvas('isFontSubpixelAAEnabled', 10, 10),
          ctx = _this$cachedCanvases$.context;

      ctx.scale(1.5, 1);
      ctx.fillText('I', 0, 10);
      var data = ctx.getImageData(0, 0, 10, 10).data;
      var enabled = false;

      for (var i = 3; i < data.length; i += 4) {
        if (data[i] > 0 && data[i] < 255) {
          enabled = true;
          break;
        }
      }

      return (0, _util.shadow)(this, 'isFontSubpixelAAEnabled', enabled);
    },

    showText: function CanvasGraphics_showText(glyphs) {
      var current = this.current;
      var font = current.font;

      if (font.isType3Font) {
        return this.showType3Text(glyphs);
      }

      var fontSize = current.fontSize;

      if (fontSize === 0) {
        return undefined;
      }

      var ctx = this.ctx;
      var fontSizeScale = current.fontSizeScale;
      var charSpacing = current.charSpacing;
      var wordSpacing = current.wordSpacing;
      var fontDirection = current.fontDirection;
      var textHScale = current.textHScale * fontDirection;
      var glyphsLength = glyphs.length;
      var vertical = font.vertical;
      var spacingDir = vertical ? 1 : -1;
      var defaultVMetrics = font.defaultVMetrics;
      var widthAdvanceScale = fontSize * current.fontMatrix[0];
      var simpleFillText = current.textRenderingMode === _util.TextRenderingMode.FILL && !font.disableFontFace && !current.patternFill;
      ctx.save();
      var patternTransform;

      if (current.patternFill) {
        ctx.save();
        var pattern = current.fillColor.getPattern(ctx, this);
        patternTransform = ctx.mozCurrentTransform;
        ctx.restore();
        ctx.fillStyle = pattern;
      }

      ctx.transform.apply(ctx, current.textMatrix);
      ctx.translate(current.x, current.y + current.textRise);

      if (fontDirection > 0) {
        ctx.scale(textHScale, -1);
      } else {
        ctx.scale(textHScale, 1);
      }

      var lineWidth = current.lineWidth;
      var scale = current.textMatrixScale;

      if (scale === 0 || lineWidth === 0) {
        var fillStrokeMode = current.textRenderingMode & _util.TextRenderingMode.FILL_STROKE_MASK;

        if (fillStrokeMode === _util.TextRenderingMode.STROKE || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
          this._cachedGetSinglePixelWidth = null;
          lineWidth = this.getSinglePixelWidth() * MIN_WIDTH_FACTOR;
        }
      } else {
        lineWidth /= scale;
      }

      if (fontSizeScale !== 1.0) {
        ctx.scale(fontSizeScale, fontSizeScale);
        lineWidth /= fontSizeScale;
      }

      ctx.lineWidth = lineWidth;
      var x = 0,
          i;

      for (i = 0; i < glyphsLength; ++i) {
        var glyph = glyphs[i];

        if ((0, _util.isNum)(glyph)) {
          x += spacingDir * glyph * fontSize / 1000;
          continue;
        }

        var restoreNeeded = false;
        var spacing = (glyph.isSpace ? wordSpacing : 0) + charSpacing;
        var character = glyph.fontChar;
        var accent = glyph.accent;
        var scaledX, scaledY, scaledAccentX, scaledAccentY;
        var width = glyph.width;

        if (vertical) {
          var vmetric, vx, vy;
          vmetric = glyph.vmetric || defaultVMetrics;
          vx = glyph.vmetric ? vmetric[1] : width * 0.5;
          vx = -vx * widthAdvanceScale;
          vy = vmetric[2] * widthAdvanceScale;
          width = vmetric ? -vmetric[0] : width;
          scaledX = vx / fontSizeScale;
          scaledY = (x + vy) / fontSizeScale;
        } else {
          scaledX = x / fontSizeScale;
          scaledY = 0;
        }

        if (font.remeasure && width > 0) {
          var measuredWidth = ctx.measureText(character).width * 1000 / fontSize * fontSizeScale;

          if (width < measuredWidth && this.isFontSubpixelAAEnabled) {
            var characterScaleX = width / measuredWidth;
            restoreNeeded = true;
            ctx.save();
            ctx.scale(characterScaleX, 1);
            scaledX /= characterScaleX;
          } else if (width !== measuredWidth) {
            scaledX += (width - measuredWidth) / 2000 * fontSize / fontSizeScale;
          }
        }

        if (glyph.isInFont || font.missingFile) {
          if (simpleFillText && !accent) {
            ctx.fillText(character, scaledX, scaledY);
          } else {
            this.paintChar(character, scaledX, scaledY, patternTransform);

            if (accent) {
              scaledAccentX = scaledX + accent.offset.x / fontSizeScale;
              scaledAccentY = scaledY - accent.offset.y / fontSizeScale;
              this.paintChar(accent.fontChar, scaledAccentX, scaledAccentY, patternTransform);
            }
          }
        }

        var charWidth = width * widthAdvanceScale + spacing * fontDirection;
        x += charWidth;

        if (restoreNeeded) {
          ctx.restore();
        }
      }

      if (vertical) {
        current.y -= x * textHScale;
      } else {
        current.x += x * textHScale;
      }

      ctx.restore();
    },
    showType3Text: function CanvasGraphics_showType3Text(glyphs) {
      var ctx = this.ctx;
      var current = this.current;
      var font = current.font;
      var fontSize = current.fontSize;
      var fontDirection = current.fontDirection;
      var spacingDir = font.vertical ? 1 : -1;
      var charSpacing = current.charSpacing;
      var wordSpacing = current.wordSpacing;
      var textHScale = current.textHScale * fontDirection;
      var fontMatrix = current.fontMatrix || _util.FONT_IDENTITY_MATRIX;
      var glyphsLength = glyphs.length;
      var isTextInvisible = current.textRenderingMode === _util.TextRenderingMode.INVISIBLE;
      var i, glyph, width, spacingLength;

      if (isTextInvisible || fontSize === 0) {
        return;
      }

      this._cachedGetSinglePixelWidth = null;
      ctx.save();
      ctx.transform.apply(ctx, current.textMatrix);
      ctx.translate(current.x, current.y);
      ctx.scale(textHScale, fontDirection);

      for (i = 0; i < glyphsLength; ++i) {
        glyph = glyphs[i];

        if ((0, _util.isNum)(glyph)) {
          spacingLength = spacingDir * glyph * fontSize / 1000;
          this.ctx.translate(spacingLength, 0);
          current.x += spacingLength * textHScale;
          continue;
        }

        var spacing = (glyph.isSpace ? wordSpacing : 0) + charSpacing;
        var operatorList = font.charProcOperatorList[glyph.operatorListId];

        if (!operatorList) {
          (0, _util.warn)("Type3 character \"".concat(glyph.operatorListId, "\" is not available."));
          continue;
        }

        this.processingType3 = glyph;
        this.save();
        ctx.scale(fontSize, fontSize);
        ctx.transform.apply(ctx, fontMatrix);
        this.executeOperatorList(operatorList);
        this.restore();

        var transformed = _util.Util.applyTransform([glyph.width, 0], fontMatrix);

        width = transformed[0] * fontSize + spacing;
        ctx.translate(width, 0);
        current.x += width * textHScale;
      }

      ctx.restore();
      this.processingType3 = null;
    },
    setCharWidth: function CanvasGraphics_setCharWidth(xWidth, yWidth) {},
    setCharWidthAndBounds: function CanvasGraphics_setCharWidthAndBounds(xWidth, yWidth, llx, lly, urx, ury) {
      this.ctx.rect(llx, lly, urx - llx, ury - lly);
      this.clip();
      this.endPath();
    },
    getColorN_Pattern: function CanvasGraphics_getColorN_Pattern(IR) {
      var _this = this;

      var pattern;

      if (IR[0] === 'TilingPattern') {
        var color = IR[1];
        var baseTransform = this.baseTransform || this.ctx.mozCurrentTransform.slice();
        var canvasGraphicsFactory = {
          createCanvasGraphics: function createCanvasGraphics(ctx) {
            return new CanvasGraphics(ctx, _this.commonObjs, _this.objs, _this.canvasFactory, _this.webGLContext);
          }
        };
        pattern = new _pattern_helper.TilingPattern(IR, color, this.ctx, canvasGraphicsFactory, baseTransform);
      } else {
        pattern = (0, _pattern_helper.getShadingPatternFromIR)(IR);
      }

      return pattern;
    },
    setStrokeColorN: function CanvasGraphics_setStrokeColorN() {
      this.current.strokeColor = this.getColorN_Pattern(arguments);
    },
    setFillColorN: function CanvasGraphics_setFillColorN() {
      this.current.fillColor = this.getColorN_Pattern(arguments);
      this.current.patternFill = true;
    },
    setStrokeRGBColor: function CanvasGraphics_setStrokeRGBColor(r, g, b) {
      var color = _util.Util.makeCssRgb(r, g, b);

      this.ctx.strokeStyle = color;
      this.current.strokeColor = color;
    },
    setFillRGBColor: function CanvasGraphics_setFillRGBColor(r, g, b) {
      var color = _util.Util.makeCssRgb(r, g, b);

      this.ctx.fillStyle = color;
      this.current.fillColor = color;
      this.current.patternFill = false;
    },
    shadingFill: function CanvasGraphics_shadingFill(patternIR) {
      var ctx = this.ctx;
      this.save();
      var pattern = (0, _pattern_helper.getShadingPatternFromIR)(patternIR);
      ctx.fillStyle = pattern.getPattern(ctx, this, true);
      var inv = ctx.mozCurrentTransformInverse;

      if (inv) {
        var canvas = ctx.canvas;
        var width = canvas.width;
        var height = canvas.height;

        var bl = _util.Util.applyTransform([0, 0], inv);

        var br = _util.Util.applyTransform([0, height], inv);

        var ul = _util.Util.applyTransform([width, 0], inv);

        var ur = _util.Util.applyTransform([width, height], inv);

        var x0 = Math.min(bl[0], br[0], ul[0], ur[0]);
        var y0 = Math.min(bl[1], br[1], ul[1], ur[1]);
        var x1 = Math.max(bl[0], br[0], ul[0], ur[0]);
        var y1 = Math.max(bl[1], br[1], ul[1], ur[1]);
        this.ctx.fillRect(x0, y0, x1 - x0, y1 - y0);
      } else {
        this.ctx.fillRect(-1e10, -1e10, 2e10, 2e10);
      }

      this.restore();
    },
    beginInlineImage: function CanvasGraphics_beginInlineImage() {
      (0, _util.unreachable)('Should not call beginInlineImage');
    },
    beginImageData: function CanvasGraphics_beginImageData() {
      (0, _util.unreachable)('Should not call beginImageData');
    },
    paintFormXObjectBegin: function CanvasGraphics_paintFormXObjectBegin(matrix, bbox) {
      this.save();
      this.baseTransformStack.push(this.baseTransform);

      if (Array.isArray(matrix) && matrix.length === 6) {
        this.transform.apply(this, matrix);
      }

      this.baseTransform = this.ctx.mozCurrentTransform;

      if (bbox) {
        var width = bbox[2] - bbox[0];
        var height = bbox[3] - bbox[1];
        this.ctx.rect(bbox[0], bbox[1], width, height);
        this.clip();
        this.endPath();
      }
    },
    paintFormXObjectEnd: function CanvasGraphics_paintFormXObjectEnd() {
      this.restore();
      this.baseTransform = this.baseTransformStack.pop();
    },
    beginGroup: function CanvasGraphics_beginGroup(group) {
      this.save();
      var currentCtx = this.ctx;

      if (!group.isolated) {
        (0, _util.info)('TODO: Support non-isolated groups.');
      }

      if (group.knockout) {
        (0, _util.warn)('Knockout groups not supported.');
      }

      var currentTransform = currentCtx.mozCurrentTransform;

      if (group.matrix) {
        currentCtx.transform.apply(currentCtx, group.matrix);
      }

      if (!group.bbox) {
        throw new Error('Bounding box is required.');
      }

      var bounds = _util.Util.getAxialAlignedBoundingBox(group.bbox, currentCtx.mozCurrentTransform);

      var canvasBounds = [0, 0, currentCtx.canvas.width, currentCtx.canvas.height];
      bounds = _util.Util.intersect(bounds, canvasBounds) || [0, 0, 0, 0];
      var offsetX = Math.floor(bounds[0]);
      var offsetY = Math.floor(bounds[1]);
      var drawnWidth = Math.max(Math.ceil(bounds[2]) - offsetX, 1);
      var drawnHeight = Math.max(Math.ceil(bounds[3]) - offsetY, 1);
      var scaleX = 1,
          scaleY = 1;

      if (drawnWidth > MAX_GROUP_SIZE) {
        scaleX = drawnWidth / MAX_GROUP_SIZE;
        drawnWidth = MAX_GROUP_SIZE;
      }

      if (drawnHeight > MAX_GROUP_SIZE) {
        scaleY = drawnHeight / MAX_GROUP_SIZE;
        drawnHeight = MAX_GROUP_SIZE;
      }

      var cacheId = 'groupAt' + this.groupLevel;

      if (group.smask) {
        cacheId += '_smask_' + this.smaskCounter++ % 2;
      }

      var scratchCanvas = this.cachedCanvases.getCanvas(cacheId, drawnWidth, drawnHeight, true);
      var groupCtx = scratchCanvas.context;
      groupCtx.scale(1 / scaleX, 1 / scaleY);
      groupCtx.translate(-offsetX, -offsetY);
      groupCtx.transform.apply(groupCtx, currentTransform);

      if (group.smask) {
        this.smaskStack.push({
          canvas: scratchCanvas.canvas,
          context: groupCtx,
          offsetX: offsetX,
          offsetY: offsetY,
          scaleX: scaleX,
          scaleY: scaleY,
          subtype: group.smask.subtype,
          backdrop: group.smask.backdrop,
          transferMap: group.smask.transferMap || null,
          startTransformInverse: null
        });
      } else {
        currentCtx.setTransform(1, 0, 0, 1, 0, 0);
        currentCtx.translate(offsetX, offsetY);
        currentCtx.scale(scaleX, scaleY);
      }

      copyCtxState(currentCtx, groupCtx);
      this.ctx = groupCtx;
      this.setGState([['BM', 'source-over'], ['ca', 1], ['CA', 1]]);
      this.groupStack.push(currentCtx);
      this.groupLevel++;
      this.current.activeSMask = null;
    },
    endGroup: function CanvasGraphics_endGroup(group) {
      this.groupLevel--;
      var groupCtx = this.ctx;
      this.ctx = this.groupStack.pop();

      if (this.ctx.imageSmoothingEnabled !== undefined) {
        this.ctx.imageSmoothingEnabled = false;
      } else {
        this.ctx.mozImageSmoothingEnabled = false;
      }

      if (group.smask) {
        this.tempSMask = this.smaskStack.pop();
      } else {
        this.ctx.drawImage(groupCtx.canvas, 0, 0);
      }

      this.restore();
    },
    beginAnnotations: function CanvasGraphics_beginAnnotations() {
      this.save();

      if (this.baseTransform) {
        this.ctx.setTransform.apply(this.ctx, this.baseTransform);
      }
    },
    endAnnotations: function CanvasGraphics_endAnnotations() {
      this.restore();
    },
    beginAnnotation: function CanvasGraphics_beginAnnotation(rect, transform, matrix) {
      this.save();
      resetCtxToDefault(this.ctx);
      this.current = new CanvasExtraState();

      if (Array.isArray(rect) && rect.length === 4) {
        var width = rect[2] - rect[0];
        var height = rect[3] - rect[1];
        this.ctx.rect(rect[0], rect[1], width, height);
        this.clip();
        this.endPath();
      }

      this.transform.apply(this, transform);
      this.transform.apply(this, matrix);
    },
    endAnnotation: function CanvasGraphics_endAnnotation() {
      this.restore();
    },
    paintJpegXObject: function CanvasGraphics_paintJpegXObject(objId, w, h) {
      var domImage = this.processingType3 ? this.commonObjs.get(objId) : this.objs.get(objId);

      if (!domImage) {
        (0, _util.warn)('Dependent image isn\'t ready yet');
        return;
      }

      this.save();
      var ctx = this.ctx;
      ctx.scale(1 / w, -1 / h);
      ctx.drawImage(domImage, 0, 0, domImage.width, domImage.height, 0, -h, w, h);

      if (this.imageLayer) {
        var currentTransform = ctx.mozCurrentTransformInverse;
        var position = this.getCanvasPosition(0, 0);
        this.imageLayer.appendImage({
          objId: objId,
          left: position[0],
          top: position[1],
          width: w / currentTransform[0],
          height: h / currentTransform[3]
        });
      }

      this.restore();
    },
    paintImageMaskXObject: function CanvasGraphics_paintImageMaskXObject(img) {
      var ctx = this.ctx;
      var width = img.width,
          height = img.height;
      var fillColor = this.current.fillColor;
      var isPatternFill = this.current.patternFill;
      var glyph = this.processingType3;

      if (COMPILE_TYPE3_GLYPHS && glyph && glyph.compiled === undefined) {
        if (width <= MAX_SIZE_TO_COMPILE && height <= MAX_SIZE_TO_COMPILE) {
          glyph.compiled = compileType3Glyph({
            data: img.data,
            width: width,
            height: height
          });
        } else {
          glyph.compiled = null;
        }
      }

      if (glyph && glyph.compiled) {
        glyph.compiled(ctx);
        return;
      }

      var maskCanvas = this.cachedCanvases.getCanvas('maskCanvas', width, height);
      var maskCtx = maskCanvas.context;
      maskCtx.save();
      putBinaryImageMask(maskCtx, img);
      maskCtx.globalCompositeOperation = 'source-in';
      maskCtx.fillStyle = isPatternFill ? fillColor.getPattern(maskCtx, this) : fillColor;
      maskCtx.fillRect(0, 0, width, height);
      maskCtx.restore();
      this.paintInlineImageXObject(maskCanvas.canvas);
    },
    paintImageMaskXObjectRepeat: function CanvasGraphics_paintImageMaskXObjectRepeat(imgData, scaleX, scaleY, positions) {
      var width = imgData.width;
      var height = imgData.height;
      var fillColor = this.current.fillColor;
      var isPatternFill = this.current.patternFill;
      var maskCanvas = this.cachedCanvases.getCanvas('maskCanvas', width, height);
      var maskCtx = maskCanvas.context;
      maskCtx.save();
      putBinaryImageMask(maskCtx, imgData);
      maskCtx.globalCompositeOperation = 'source-in';
      maskCtx.fillStyle = isPatternFill ? fillColor.getPattern(maskCtx, this) : fillColor;
      maskCtx.fillRect(0, 0, width, height);
      maskCtx.restore();
      var ctx = this.ctx;

      for (var i = 0, ii = positions.length; i < ii; i += 2) {
        ctx.save();
        ctx.transform(scaleX, 0, 0, scaleY, positions[i], positions[i + 1]);
        ctx.scale(1, -1);
        ctx.drawImage(maskCanvas.canvas, 0, 0, width, height, 0, -1, 1, 1);
        ctx.restore();
      }
    },
    paintImageMaskXObjectGroup: function CanvasGraphics_paintImageMaskXObjectGroup(images) {
      var ctx = this.ctx;
      var fillColor = this.current.fillColor;
      var isPatternFill = this.current.patternFill;

      for (var i = 0, ii = images.length; i < ii; i++) {
        var image = images[i];
        var width = image.width,
            height = image.height;
        var maskCanvas = this.cachedCanvases.getCanvas('maskCanvas', width, height);
        var maskCtx = maskCanvas.context;
        maskCtx.save();
        putBinaryImageMask(maskCtx, image);
        maskCtx.globalCompositeOperation = 'source-in';
        maskCtx.fillStyle = isPatternFill ? fillColor.getPattern(maskCtx, this) : fillColor;
        maskCtx.fillRect(0, 0, width, height);
        maskCtx.restore();
        ctx.save();
        ctx.transform.apply(ctx, image.transform);
        ctx.scale(1, -1);
        ctx.drawImage(maskCanvas.canvas, 0, 0, width, height, 0, -1, 1, 1);
        ctx.restore();
      }
    },
    paintImageXObject: function CanvasGraphics_paintImageXObject(objId) {
      var imgData = this.processingType3 ? this.commonObjs.get(objId) : this.objs.get(objId);

      if (!imgData) {
        (0, _util.warn)('Dependent image isn\'t ready yet');
        return;
      }

      this.paintInlineImageXObject(imgData);
    },
    paintImageXObjectRepeat: function CanvasGraphics_paintImageXObjectRepeat(objId, scaleX, scaleY, positions) {
      var imgData = this.processingType3 ? this.commonObjs.get(objId) : this.objs.get(objId);

      if (!imgData) {
        (0, _util.warn)('Dependent image isn\'t ready yet');
        return;
      }

      var width = imgData.width;
      var height = imgData.height;
      var map = [];

      for (var i = 0, ii = positions.length; i < ii; i += 2) {
        map.push({
          transform: [scaleX, 0, 0, scaleY, positions[i], positions[i + 1]],
          x: 0,
          y: 0,
          w: width,
          h: height
        });
      }

      this.paintInlineImageXObjectGroup(imgData, map);
    },
    paintInlineImageXObject: function CanvasGraphics_paintInlineImageXObject(imgData) {
      var width = imgData.width;
      var height = imgData.height;
      var ctx = this.ctx;
      this.save();
      ctx.scale(1 / width, -1 / height);
      var currentTransform = ctx.mozCurrentTransformInverse;
      var a = currentTransform[0],
          b = currentTransform[1];
      var widthScale = Math.max(Math.sqrt(a * a + b * b), 1);
      var c = currentTransform[2],
          d = currentTransform[3];
      var heightScale = Math.max(Math.sqrt(c * c + d * d), 1);
      var imgToPaint, tmpCanvas;

      if (typeof HTMLElement === 'function' && imgData instanceof HTMLElement || !imgData.data) {
        imgToPaint = imgData;
      } else {
        tmpCanvas = this.cachedCanvases.getCanvas('inlineImage', width, height);
        var tmpCtx = tmpCanvas.context;
        putBinaryImageData(tmpCtx, imgData);
        imgToPaint = tmpCanvas.canvas;
      }

      var paintWidth = width,
          paintHeight = height;
      var tmpCanvasId = 'prescale1';

      while (widthScale > 2 && paintWidth > 1 || heightScale > 2 && paintHeight > 1) {
        var newWidth = paintWidth,
            newHeight = paintHeight;

        if (widthScale > 2 && paintWidth > 1) {
          newWidth = Math.ceil(paintWidth / 2);
          widthScale /= paintWidth / newWidth;
        }

        if (heightScale > 2 && paintHeight > 1) {
          newHeight = Math.ceil(paintHeight / 2);
          heightScale /= paintHeight / newHeight;
        }

        tmpCanvas = this.cachedCanvases.getCanvas(tmpCanvasId, newWidth, newHeight);
        tmpCtx = tmpCanvas.context;
        tmpCtx.clearRect(0, 0, newWidth, newHeight);
        tmpCtx.drawImage(imgToPaint, 0, 0, paintWidth, paintHeight, 0, 0, newWidth, newHeight);
        imgToPaint = tmpCanvas.canvas;
        paintWidth = newWidth;
        paintHeight = newHeight;
        tmpCanvasId = tmpCanvasId === 'prescale1' ? 'prescale2' : 'prescale1';
      }

      ctx.drawImage(imgToPaint, 0, 0, paintWidth, paintHeight, 0, -height, width, height);

      if (this.imageLayer) {
        var position = this.getCanvasPosition(0, -height);
        this.imageLayer.appendImage({
          imgData: imgData,
          left: position[0],
          top: position[1],
          width: width / currentTransform[0],
          height: height / currentTransform[3]
        });
      }

      this.restore();
    },
    paintInlineImageXObjectGroup: function CanvasGraphics_paintInlineImageXObjectGroup(imgData, map) {
      var ctx = this.ctx;
      var w = imgData.width;
      var h = imgData.height;
      var tmpCanvas = this.cachedCanvases.getCanvas('inlineImage', w, h);
      var tmpCtx = tmpCanvas.context;
      putBinaryImageData(tmpCtx, imgData);

      for (var i = 0, ii = map.length; i < ii; i++) {
        var entry = map[i];
        ctx.save();
        ctx.transform.apply(ctx, entry.transform);
        ctx.scale(1, -1);
        ctx.drawImage(tmpCanvas.canvas, entry.x, entry.y, entry.w, entry.h, 0, -1, 1, 1);

        if (this.imageLayer) {
          var position = this.getCanvasPosition(entry.x, entry.y);
          this.imageLayer.appendImage({
            imgData: imgData,
            left: position[0],
            top: position[1],
            width: w,
            height: h
          });
        }

        ctx.restore();
      }
    },
    paintSolidColorImageMask: function CanvasGraphics_paintSolidColorImageMask() {
      this.ctx.fillRect(0, 0, 1, 1);
    },
    paintXObject: function CanvasGraphics_paintXObject() {
      (0, _util.warn)('Unsupported \'paintXObject\' command.');
    },
    markPoint: function CanvasGraphics_markPoint(tag) {},
    markPointProps: function CanvasGraphics_markPointProps(tag, properties) {},
    beginMarkedContent: function CanvasGraphics_beginMarkedContent(tag) {},
    beginMarkedContentProps: function CanvasGraphics_beginMarkedContentProps(tag, properties) {},
    endMarkedContent: function CanvasGraphics_endMarkedContent() {},
    beginCompat: function CanvasGraphics_beginCompat() {},
    endCompat: function CanvasGraphics_endCompat() {},
    consumePath: function CanvasGraphics_consumePath() {
      var ctx = this.ctx;

      if (this.pendingClip) {
        if (this.pendingClip === EO_CLIP) {
          ctx.clip('evenodd');
        } else {
          ctx.clip();
        }

        this.pendingClip = null;
      }

      ctx.beginPath();
    },
    getSinglePixelWidth: function getSinglePixelWidth(scale) {
      if (this._cachedGetSinglePixelWidth === null) {
        var inverse = this.ctx.mozCurrentTransformInverse;
        this._cachedGetSinglePixelWidth = Math.sqrt(Math.max(inverse[0] * inverse[0] + inverse[1] * inverse[1], inverse[2] * inverse[2] + inverse[3] * inverse[3]));
      }

      return this._cachedGetSinglePixelWidth;
    },
    getCanvasPosition: function CanvasGraphics_getCanvasPosition(x, y) {
      var transform = this.ctx.mozCurrentTransform;
      return [transform[0] * x + transform[2] * y + transform[4], transform[1] * x + transform[3] * y + transform[5]];
    }
  };

  for (var op in _util.OPS) {
    CanvasGraphics.prototype[_util.OPS[op]] = CanvasGraphics.prototype[op];
  }

  return CanvasGraphics;
}();

exports.CanvasGraphics = CanvasGraphics;

/***/ }),
/* 155 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getShadingPatternFromIR = getShadingPatternFromIR;
exports.TilingPattern = void 0;

var _util = __w_pdfjs_require__(1);

var ShadingIRs = {};

function applyBoundingBox(ctx, bbox) {
  if (!bbox || typeof Path2D === 'undefined') {
    return;
  }

  var width = bbox[2] - bbox[0];
  var height = bbox[3] - bbox[1];
  var region = new Path2D();
  region.rect(bbox[0], bbox[1], width, height);
  ctx.clip(region);
}

ShadingIRs.RadialAxial = {
  fromIR: function RadialAxial_fromIR(raw) {
    var type = raw[1];
    var bbox = raw[2];
    var colorStops = raw[3];
    var p0 = raw[4];
    var p1 = raw[5];
    var r0 = raw[6];
    var r1 = raw[7];
    return {
      type: 'Pattern',
      getPattern: function RadialAxial_getPattern(ctx) {
        applyBoundingBox(ctx, bbox);
        var grad;

        if (type === 'axial') {
          grad = ctx.createLinearGradient(p0[0], p0[1], p1[0], p1[1]);
        } else if (type === 'radial') {
          grad = ctx.createRadialGradient(p0[0], p0[1], r0, p1[0], p1[1], r1);
        }

        for (var i = 0, ii = colorStops.length; i < ii; ++i) {
          var c = colorStops[i];
          grad.addColorStop(c[0], c[1]);
        }

        return grad;
      }
    };
  }
};

var createMeshCanvas = function createMeshCanvasClosure() {
  function drawTriangle(data, context, p1, p2, p3, c1, c2, c3) {
    var coords = context.coords,
        colors = context.colors;
    var bytes = data.data,
        rowSize = data.width * 4;
    var tmp;

    if (coords[p1 + 1] > coords[p2 + 1]) {
      tmp = p1;
      p1 = p2;
      p2 = tmp;
      tmp = c1;
      c1 = c2;
      c2 = tmp;
    }

    if (coords[p2 + 1] > coords[p3 + 1]) {
      tmp = p2;
      p2 = p3;
      p3 = tmp;
      tmp = c2;
      c2 = c3;
      c3 = tmp;
    }

    if (coords[p1 + 1] > coords[p2 + 1]) {
      tmp = p1;
      p1 = p2;
      p2 = tmp;
      tmp = c1;
      c1 = c2;
      c2 = tmp;
    }

    var x1 = (coords[p1] + context.offsetX) * context.scaleX;
    var y1 = (coords[p1 + 1] + context.offsetY) * context.scaleY;
    var x2 = (coords[p2] + context.offsetX) * context.scaleX;
    var y2 = (coords[p2 + 1] + context.offsetY) * context.scaleY;
    var x3 = (coords[p3] + context.offsetX) * context.scaleX;
    var y3 = (coords[p3 + 1] + context.offsetY) * context.scaleY;

    if (y1 >= y3) {
      return;
    }

    var c1r = colors[c1],
        c1g = colors[c1 + 1],
        c1b = colors[c1 + 2];
    var c2r = colors[c2],
        c2g = colors[c2 + 1],
        c2b = colors[c2 + 2];
    var c3r = colors[c3],
        c3g = colors[c3 + 1],
        c3b = colors[c3 + 2];
    var minY = Math.round(y1),
        maxY = Math.round(y3);
    var xa, car, cag, cab;
    var xb, cbr, cbg, cbb;
    var k;

    for (var y = minY; y <= maxY; y++) {
      if (y < y2) {
        k = y < y1 ? 0 : y1 === y2 ? 1 : (y1 - y) / (y1 - y2);
        xa = x1 - (x1 - x2) * k;
        car = c1r - (c1r - c2r) * k;
        cag = c1g - (c1g - c2g) * k;
        cab = c1b - (c1b - c2b) * k;
      } else {
        k = y > y3 ? 1 : y2 === y3 ? 0 : (y2 - y) / (y2 - y3);
        xa = x2 - (x2 - x3) * k;
        car = c2r - (c2r - c3r) * k;
        cag = c2g - (c2g - c3g) * k;
        cab = c2b - (c2b - c3b) * k;
      }

      k = y < y1 ? 0 : y > y3 ? 1 : (y1 - y) / (y1 - y3);
      xb = x1 - (x1 - x3) * k;
      cbr = c1r - (c1r - c3r) * k;
      cbg = c1g - (c1g - c3g) * k;
      cbb = c1b - (c1b - c3b) * k;
      var x1_ = Math.round(Math.min(xa, xb));
      var x2_ = Math.round(Math.max(xa, xb));
      var j = rowSize * y + x1_ * 4;

      for (var x = x1_; x <= x2_; x++) {
        k = (xa - x) / (xa - xb);
        k = k < 0 ? 0 : k > 1 ? 1 : k;
        bytes[j++] = car - (car - cbr) * k | 0;
        bytes[j++] = cag - (cag - cbg) * k | 0;
        bytes[j++] = cab - (cab - cbb) * k | 0;
        bytes[j++] = 255;
      }
    }
  }

  function drawFigure(data, figure, context) {
    var ps = figure.coords;
    var cs = figure.colors;
    var i, ii;

    switch (figure.type) {
      case 'lattice':
        var verticesPerRow = figure.verticesPerRow;
        var rows = Math.floor(ps.length / verticesPerRow) - 1;
        var cols = verticesPerRow - 1;

        for (i = 0; i < rows; i++) {
          var q = i * verticesPerRow;

          for (var j = 0; j < cols; j++, q++) {
            drawTriangle(data, context, ps[q], ps[q + 1], ps[q + verticesPerRow], cs[q], cs[q + 1], cs[q + verticesPerRow]);
            drawTriangle(data, context, ps[q + verticesPerRow + 1], ps[q + 1], ps[q + verticesPerRow], cs[q + verticesPerRow + 1], cs[q + 1], cs[q + verticesPerRow]);
          }
        }

        break;

      case 'triangles':
        for (i = 0, ii = ps.length; i < ii; i += 3) {
          drawTriangle(data, context, ps[i], ps[i + 1], ps[i + 2], cs[i], cs[i + 1], cs[i + 2]);
        }

        break;

      default:
        throw new Error('illegal figure');
    }
  }

  function createMeshCanvas(bounds, combinesScale, coords, colors, figures, backgroundColor, cachedCanvases, webGLContext) {
    var EXPECTED_SCALE = 1.1;
    var MAX_PATTERN_SIZE = 3000;
    var BORDER_SIZE = 2;
    var offsetX = Math.floor(bounds[0]);
    var offsetY = Math.floor(bounds[1]);
    var boundsWidth = Math.ceil(bounds[2]) - offsetX;
    var boundsHeight = Math.ceil(bounds[3]) - offsetY;
    var width = Math.min(Math.ceil(Math.abs(boundsWidth * combinesScale[0] * EXPECTED_SCALE)), MAX_PATTERN_SIZE);
    var height = Math.min(Math.ceil(Math.abs(boundsHeight * combinesScale[1] * EXPECTED_SCALE)), MAX_PATTERN_SIZE);
    var scaleX = boundsWidth / width;
    var scaleY = boundsHeight / height;
    var context = {
      coords: coords,
      colors: colors,
      offsetX: -offsetX,
      offsetY: -offsetY,
      scaleX: 1 / scaleX,
      scaleY: 1 / scaleY
    };
    var paddedWidth = width + BORDER_SIZE * 2;
    var paddedHeight = height + BORDER_SIZE * 2;
    var canvas, tmpCanvas, i, ii;

    if (webGLContext.isEnabled) {
      canvas = webGLContext.drawFigures({
        width: width,
        height: height,
        backgroundColor: backgroundColor,
        figures: figures,
        context: context
      });
      tmpCanvas = cachedCanvases.getCanvas('mesh', paddedWidth, paddedHeight, false);
      tmpCanvas.context.drawImage(canvas, BORDER_SIZE, BORDER_SIZE);
      canvas = tmpCanvas.canvas;
    } else {
      tmpCanvas = cachedCanvases.getCanvas('mesh', paddedWidth, paddedHeight, false);
      var tmpCtx = tmpCanvas.context;
      var data = tmpCtx.createImageData(width, height);

      if (backgroundColor) {
        var bytes = data.data;

        for (i = 0, ii = bytes.length; i < ii; i += 4) {
          bytes[i] = backgroundColor[0];
          bytes[i + 1] = backgroundColor[1];
          bytes[i + 2] = backgroundColor[2];
          bytes[i + 3] = 255;
        }
      }

      for (i = 0; i < figures.length; i++) {
        drawFigure(data, figures[i], context);
      }

      tmpCtx.putImageData(data, BORDER_SIZE, BORDER_SIZE);
      canvas = tmpCanvas.canvas;
    }

    return {
      canvas: canvas,
      offsetX: offsetX - BORDER_SIZE * scaleX,
      offsetY: offsetY - BORDER_SIZE * scaleY,
      scaleX: scaleX,
      scaleY: scaleY
    };
  }

  return createMeshCanvas;
}();

ShadingIRs.Mesh = {
  fromIR: function Mesh_fromIR(raw) {
    var coords = raw[2];
    var colors = raw[3];
    var figures = raw[4];
    var bounds = raw[5];
    var matrix = raw[6];
    var bbox = raw[7];
    var background = raw[8];
    return {
      type: 'Pattern',
      getPattern: function Mesh_getPattern(ctx, owner, shadingFill) {
        applyBoundingBox(ctx, bbox);
        var scale;

        if (shadingFill) {
          scale = _util.Util.singularValueDecompose2dScale(ctx.mozCurrentTransform);
        } else {
          scale = _util.Util.singularValueDecompose2dScale(owner.baseTransform);

          if (matrix) {
            var matrixScale = _util.Util.singularValueDecompose2dScale(matrix);

            scale = [scale[0] * matrixScale[0], scale[1] * matrixScale[1]];
          }
        }

        var temporaryPatternCanvas = createMeshCanvas(bounds, scale, coords, colors, figures, shadingFill ? null : background, owner.cachedCanvases, owner.webGLContext);

        if (!shadingFill) {
          ctx.setTransform.apply(ctx, owner.baseTransform);

          if (matrix) {
            ctx.transform.apply(ctx, matrix);
          }
        }

        ctx.translate(temporaryPatternCanvas.offsetX, temporaryPatternCanvas.offsetY);
        ctx.scale(temporaryPatternCanvas.scaleX, temporaryPatternCanvas.scaleY);
        return ctx.createPattern(temporaryPatternCanvas.canvas, 'no-repeat');
      }
    };
  }
};
ShadingIRs.Dummy = {
  fromIR: function Dummy_fromIR() {
    return {
      type: 'Pattern',
      getPattern: function Dummy_fromIR_getPattern() {
        return 'hotpink';
      }
    };
  }
};

function getShadingPatternFromIR(raw) {
  var shadingIR = ShadingIRs[raw[0]];

  if (!shadingIR) {
    throw new Error("Unknown IR type: ".concat(raw[0]));
  }

  return shadingIR.fromIR(raw);
}

var TilingPattern = function TilingPatternClosure() {
  var PaintType = {
    COLORED: 1,
    UNCOLORED: 2
  };
  var MAX_PATTERN_SIZE = 3000;

  function TilingPattern(IR, color, ctx, canvasGraphicsFactory, baseTransform) {
    this.operatorList = IR[2];
    this.matrix = IR[3] || [1, 0, 0, 1, 0, 0];
    this.bbox = IR[4];
    this.xstep = IR[5];
    this.ystep = IR[6];
    this.paintType = IR[7];
    this.tilingType = IR[8];
    this.color = color;
    this.canvasGraphicsFactory = canvasGraphicsFactory;
    this.baseTransform = baseTransform;
    this.type = 'Pattern';
    this.ctx = ctx;
  }

  TilingPattern.prototype = {
    createPatternCanvas: function TilinPattern_createPatternCanvas(owner) {
      var operatorList = this.operatorList;
      var bbox = this.bbox;
      var xstep = this.xstep;
      var ystep = this.ystep;
      var paintType = this.paintType;
      var tilingType = this.tilingType;
      var color = this.color;
      var canvasGraphicsFactory = this.canvasGraphicsFactory;
      (0, _util.info)('TilingType: ' + tilingType);
      var x0 = bbox[0],
          y0 = bbox[1],
          x1 = bbox[2],
          y1 = bbox[3];

      var matrixScale = _util.Util.singularValueDecompose2dScale(this.matrix);

      var curMatrixScale = _util.Util.singularValueDecompose2dScale(this.baseTransform);

      var combinedScale = [matrixScale[0] * curMatrixScale[0], matrixScale[1] * curMatrixScale[1]];
      var dimx = this.getSizeAndScale(xstep, this.ctx.canvas.width, combinedScale[0]);
      var dimy = this.getSizeAndScale(ystep, this.ctx.canvas.height, combinedScale[1]);
      var tmpCanvas = owner.cachedCanvases.getCanvas('pattern', dimx.size, dimy.size, true);
      var tmpCtx = tmpCanvas.context;
      var graphics = canvasGraphicsFactory.createCanvasGraphics(tmpCtx);
      graphics.groupLevel = owner.groupLevel;
      this.setFillAndStrokeStyleToContext(graphics, paintType, color);
      graphics.transform(dimx.scale, 0, 0, dimy.scale, 0, 0);
      graphics.transform(1, 0, 0, 1, -x0, -y0);
      this.clipBbox(graphics, bbox, x0, y0, x1, y1);
      graphics.executeOperatorList(operatorList);
      this.ctx.transform(1, 0, 0, 1, x0, y0);
      this.ctx.scale(1 / dimx.scale, 1 / dimy.scale);
      return tmpCanvas.canvas;
    },
    getSizeAndScale: function TilingPattern_getSizeAndScale(step, realOutputSize, scale) {
      step = Math.abs(step);
      var maxSize = Math.max(MAX_PATTERN_SIZE, realOutputSize);
      var size = Math.ceil(step * scale);

      if (size >= maxSize) {
        size = maxSize;
      } else {
        scale = size / step;
      }

      return {
        scale: scale,
        size: size
      };
    },
    clipBbox: function clipBbox(graphics, bbox, x0, y0, x1, y1) {
      if (Array.isArray(bbox) && bbox.length === 4) {
        var bboxWidth = x1 - x0;
        var bboxHeight = y1 - y0;
        graphics.ctx.rect(x0, y0, bboxWidth, bboxHeight);
        graphics.clip();
        graphics.endPath();
      }
    },
    setFillAndStrokeStyleToContext: function setFillAndStrokeStyleToContext(graphics, paintType, color) {
      var context = graphics.ctx,
          current = graphics.current;

      switch (paintType) {
        case PaintType.COLORED:
          var ctx = this.ctx;
          context.fillStyle = ctx.fillStyle;
          context.strokeStyle = ctx.strokeStyle;
          current.fillColor = ctx.fillStyle;
          current.strokeColor = ctx.strokeStyle;
          break;

        case PaintType.UNCOLORED:
          var cssColor = _util.Util.makeCssRgb(color[0], color[1], color[2]);

          context.fillStyle = cssColor;
          context.strokeStyle = cssColor;
          current.fillColor = cssColor;
          current.strokeColor = cssColor;
          break;

        default:
          throw new _util.FormatError("Unsupported paint type: ".concat(paintType));
      }
    },
    getPattern: function TilingPattern_getPattern(ctx, owner) {
      ctx = this.ctx;
      ctx.setTransform.apply(ctx, this.baseTransform);
      ctx.transform.apply(ctx, this.matrix);
      var temporaryPatternCanvas = this.createPatternCanvas(owner);
      return ctx.createPattern(temporaryPatternCanvas, 'repeat');
    }
  };
  return TilingPattern;
}();

exports.TilingPattern = TilingPattern;

/***/ }),
/* 156 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.GlobalWorkerOptions = void 0;
var GlobalWorkerOptions = Object.create(null);
exports.GlobalWorkerOptions = GlobalWorkerOptions;
GlobalWorkerOptions.workerPort = GlobalWorkerOptions.workerPort === undefined ? null : GlobalWorkerOptions.workerPort;
GlobalWorkerOptions.workerSrc = GlobalWorkerOptions.workerSrc === undefined ? '' : GlobalWorkerOptions.workerSrc;

/***/ }),
/* 157 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.MessageHandler = MessageHandler;

var _regenerator = _interopRequireDefault(__w_pdfjs_require__(148));

var _util = __w_pdfjs_require__(1);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function resolveCall(_x, _x2) {
  return _resolveCall.apply(this, arguments);
}

function _resolveCall() {
  _resolveCall = _asyncToGenerator(
  /*#__PURE__*/
  _regenerator["default"].mark(function _callee(fn, args) {
    var thisArg,
        _args = arguments;
    return _regenerator["default"].wrap(function _callee$(_context) {
      while (1) {
        switch (_context.prev = _context.next) {
          case 0:
            thisArg = _args.length > 2 && _args[2] !== undefined ? _args[2] : null;

            if (fn) {
              _context.next = 3;
              break;
            }

            return _context.abrupt("return", undefined);

          case 3:
            return _context.abrupt("return", fn.apply(thisArg, args));

          case 4:
          case "end":
            return _context.stop();
        }
      }
    }, _callee);
  }));
  return _resolveCall.apply(this, arguments);
}

function wrapReason(reason) {
  if (_typeof(reason) !== 'object') {
    return reason;
  }

  switch (reason.name) {
    case 'AbortException':
      return new _util.AbortException(reason.message);

    case 'MissingPDFException':
      return new _util.MissingPDFException(reason.message);

    case 'UnexpectedResponseException':
      return new _util.UnexpectedResponseException(reason.message, reason.status);

    default:
      return new _util.UnknownErrorException(reason.message, reason.details);
  }
}

function makeReasonSerializable(reason) {
  if (!(reason instanceof Error) || reason instanceof _util.AbortException || reason instanceof _util.MissingPDFException || reason instanceof _util.UnexpectedResponseException || reason instanceof _util.UnknownErrorException) {
    return reason;
  }

  return new _util.UnknownErrorException(reason.message, reason.toString());
}

function resolveOrReject(capability, data) {
  if (data.success) {
    capability.resolve();
  } else {
    capability.reject(wrapReason(data.reason));
  }
}

function MessageHandler(sourceName, targetName, comObj) {
  var _this = this;

  this.sourceName = sourceName;
  this.targetName = targetName;
  this.comObj = comObj;
  this.callbackId = 1;
  this.streamId = 1;
  this.postMessageTransfers = true;
  this.streamSinks = Object.create(null);
  this.streamControllers = Object.create(null);
  var callbacksCapabilities = this.callbacksCapabilities = Object.create(null);
  var ah = this.actionHandler = Object.create(null);

  this._onComObjOnMessage = function (event) {
    var data = event.data;

    if (data.targetName !== _this.sourceName) {
      return;
    }

    if (data.stream) {
      _this._processStreamMessage(data);
    } else if (data.isReply) {
      var callbackId = data.callbackId;

      if (data.callbackId in callbacksCapabilities) {
        var callback = callbacksCapabilities[callbackId];
        delete callbacksCapabilities[callbackId];

        if ('error' in data) {
          callback.reject(wrapReason(data.error));
        } else {
          callback.resolve(data.data);
        }
      } else {
        throw new Error("Cannot resolve callback ".concat(callbackId));
      }
    } else if (data.action in ah) {
      var action = ah[data.action];

      if (data.callbackId) {
        var _sourceName = _this.sourceName;
        var _targetName = data.sourceName;
        Promise.resolve().then(function () {
          return action[0].call(action[1], data.data);
        }).then(function (result) {
          comObj.postMessage({
            sourceName: _sourceName,
            targetName: _targetName,
            isReply: true,
            callbackId: data.callbackId,
            data: result
          });
        }, function (reason) {
          comObj.postMessage({
            sourceName: _sourceName,
            targetName: _targetName,
            isReply: true,
            callbackId: data.callbackId,
            error: makeReasonSerializable(reason)
          });
        });
      } else if (data.streamId) {
        _this._createStreamSink(data);
      } else {
        action[0].call(action[1], data.data);
      }
    } else {
      throw new Error("Unknown action from worker: ".concat(data.action));
    }
  };

  comObj.addEventListener('message', this._onComObjOnMessage);
}

MessageHandler.prototype = {
  on: function on(actionName, handler, scope) {
    var ah = this.actionHandler;

    if (ah[actionName]) {
      throw new Error("There is already an actionName called \"".concat(actionName, "\""));
    }

    ah[actionName] = [handler, scope];
  },
  send: function send(actionName, data, transfers) {
    var message = {
      sourceName: this.sourceName,
      targetName: this.targetName,
      action: actionName,
      data: data
    };
    this.postMessage(message, transfers);
  },
  sendWithPromise: function sendWithPromise(actionName, data, transfers) {
    var callbackId = this.callbackId++;
    var message = {
      sourceName: this.sourceName,
      targetName: this.targetName,
      action: actionName,
      data: data,
      callbackId: callbackId
    };
    var capability = (0, _util.createPromiseCapability)();
    this.callbacksCapabilities[callbackId] = capability;

    try {
      this.postMessage(message, transfers);
    } catch (e) {
      capability.reject(e);
    }

    return capability.promise;
  },
  sendWithStream: function sendWithStream(actionName, data, queueingStrategy, transfers) {
    var _this2 = this;

    var streamId = this.streamId++;
    var sourceName = this.sourceName;
    var targetName = this.targetName;
    return new _util.ReadableStream({
      start: function start(controller) {
        var startCapability = (0, _util.createPromiseCapability)();
        _this2.streamControllers[streamId] = {
          controller: controller,
          startCall: startCapability,
          isClosed: false
        };

        _this2.postMessage({
          sourceName: sourceName,
          targetName: targetName,
          action: actionName,
          streamId: streamId,
          data: data,
          desiredSize: controller.desiredSize
        });

        return startCapability.promise;
      },
      pull: function pull(controller) {
        var pullCapability = (0, _util.createPromiseCapability)();
        _this2.streamControllers[streamId].pullCall = pullCapability;

        _this2.postMessage({
          sourceName: sourceName,
          targetName: targetName,
          stream: 'pull',
          streamId: streamId,
          desiredSize: controller.desiredSize
        });

        return pullCapability.promise;
      },
      cancel: function cancel(reason) {
        var cancelCapability = (0, _util.createPromiseCapability)();
        _this2.streamControllers[streamId].cancelCall = cancelCapability;
        _this2.streamControllers[streamId].isClosed = true;

        _this2.postMessage({
          sourceName: sourceName,
          targetName: targetName,
          stream: 'cancel',
          reason: reason,
          streamId: streamId
        });

        return cancelCapability.promise;
      }
    }, queueingStrategy);
  },
  _createStreamSink: function _createStreamSink(data) {
    var _this3 = this;

    var self = this;
    var action = this.actionHandler[data.action];
    var streamId = data.streamId;
    var desiredSize = data.desiredSize;
    var sourceName = this.sourceName;
    var targetName = data.sourceName;
    var capability = (0, _util.createPromiseCapability)();

    var sendStreamRequest = function sendStreamRequest(_ref) {
      var stream = _ref.stream,
          chunk = _ref.chunk,
          transfers = _ref.transfers,
          success = _ref.success,
          reason = _ref.reason;

      _this3.postMessage({
        sourceName: sourceName,
        targetName: targetName,
        stream: stream,
        streamId: streamId,
        chunk: chunk,
        success: success,
        reason: reason
      }, transfers);
    };

    var streamSink = {
      enqueue: function enqueue(chunk) {
        var size = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
        var transfers = arguments.length > 2 ? arguments[2] : undefined;

        if (this.isCancelled) {
          return;
        }

        var lastDesiredSize = this.desiredSize;
        this.desiredSize -= size;

        if (lastDesiredSize > 0 && this.desiredSize <= 0) {
          this.sinkCapability = (0, _util.createPromiseCapability)();
          this.ready = this.sinkCapability.promise;
        }

        sendStreamRequest({
          stream: 'enqueue',
          chunk: chunk,
          transfers: transfers
        });
      },
      close: function close() {
        if (this.isCancelled) {
          return;
        }

        this.isCancelled = true;
        sendStreamRequest({
          stream: 'close'
        });
        delete self.streamSinks[streamId];
      },
      error: function error(reason) {
        if (this.isCancelled) {
          return;
        }

        this.isCancelled = true;
        sendStreamRequest({
          stream: 'error',
          reason: reason
        });
      },
      sinkCapability: capability,
      onPull: null,
      onCancel: null,
      isCancelled: false,
      desiredSize: desiredSize,
      ready: null
    };
    streamSink.sinkCapability.resolve();
    streamSink.ready = streamSink.sinkCapability.promise;
    this.streamSinks[streamId] = streamSink;
    resolveCall(action[0], [data.data, streamSink], action[1]).then(function () {
      sendStreamRequest({
        stream: 'start_complete',
        success: true
      });
    }, function (reason) {
      sendStreamRequest({
        stream: 'start_complete',
        success: false,
        reason: reason
      });
    });
  },
  _processStreamMessage: function _processStreamMessage(data) {
    var _this4 = this;

    var sourceName = this.sourceName;
    var targetName = data.sourceName;
    var streamId = data.streamId;

    var sendStreamResponse = function sendStreamResponse(_ref2) {
      var stream = _ref2.stream,
          success = _ref2.success,
          reason = _ref2.reason;

      _this4.comObj.postMessage({
        sourceName: sourceName,
        targetName: targetName,
        stream: stream,
        success: success,
        streamId: streamId,
        reason: reason
      });
    };

    var deleteStreamController = function deleteStreamController() {
      Promise.all([_this4.streamControllers[data.streamId].startCall, _this4.streamControllers[data.streamId].pullCall, _this4.streamControllers[data.streamId].cancelCall].map(function (capability) {
        return capability && capability.promise["catch"](function () {});
      })).then(function () {
        delete _this4.streamControllers[data.streamId];
      });
    };

    switch (data.stream) {
      case 'start_complete':
        resolveOrReject(this.streamControllers[data.streamId].startCall, data);
        break;

      case 'pull_complete':
        resolveOrReject(this.streamControllers[data.streamId].pullCall, data);
        break;

      case 'pull':
        if (!this.streamSinks[data.streamId]) {
          sendStreamResponse({
            stream: 'pull_complete',
            success: true
          });
          break;
        }

        if (this.streamSinks[data.streamId].desiredSize <= 0 && data.desiredSize > 0) {
          this.streamSinks[data.streamId].sinkCapability.resolve();
        }

        this.streamSinks[data.streamId].desiredSize = data.desiredSize;
        resolveCall(this.streamSinks[data.streamId].onPull).then(function () {
          sendStreamResponse({
            stream: 'pull_complete',
            success: true
          });
        }, function (reason) {
          sendStreamResponse({
            stream: 'pull_complete',
            success: false,
            reason: reason
          });
        });
        break;

      case 'enqueue':
        (0, _util.assert)(this.streamControllers[data.streamId], 'enqueue should have stream controller');

        if (!this.streamControllers[data.streamId].isClosed) {
          this.streamControllers[data.streamId].controller.enqueue(data.chunk);
        }

        break;

      case 'close':
        (0, _util.assert)(this.streamControllers[data.streamId], 'close should have stream controller');

        if (this.streamControllers[data.streamId].isClosed) {
          break;
        }

        this.streamControllers[data.streamId].isClosed = true;
        this.streamControllers[data.streamId].controller.close();
        deleteStreamController();
        break;

      case 'error':
        (0, _util.assert)(this.streamControllers[data.streamId], 'error should have stream controller');
        this.streamControllers[data.streamId].controller.error(wrapReason(data.reason));
        deleteStreamController();
        break;

      case 'cancel_complete':
        resolveOrReject(this.streamControllers[data.streamId].cancelCall, data);
        deleteStreamController();
        break;

      case 'cancel':
        if (!this.streamSinks[data.streamId]) {
          break;
        }

        resolveCall(this.streamSinks[data.streamId].onCancel, [wrapReason(data.reason)]).then(function () {
          sendStreamResponse({
            stream: 'cancel_complete',
            success: true
          });
        }, function (reason) {
          sendStreamResponse({
            stream: 'cancel_complete',
            success: false,
            reason: reason
          });
        });
        this.streamSinks[data.streamId].sinkCapability.reject(wrapReason(data.reason));
        this.streamSinks[data.streamId].isCancelled = true;
        delete this.streamSinks[data.streamId];
        break;

      default:
        throw new Error('Unexpected stream case');
    }
  },
  postMessage: function postMessage(message, transfers) {
    if (transfers && this.postMessageTransfers) {
      this.comObj.postMessage(message, transfers);
    } else {
      this.comObj.postMessage(message);
    }
  },
  destroy: function destroy() {
    this.comObj.removeEventListener('message', this._onComObjOnMessage);
  }
};

/***/ }),
/* 158 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.Metadata = void 0;

var _util = __w_pdfjs_require__(1);

var _xml_parser = __w_pdfjs_require__(159);

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var Metadata =
/*#__PURE__*/
function () {
  function Metadata(data) {
    _classCallCheck(this, Metadata);

    (0, _util.assert)(typeof data === 'string', 'Metadata: input is not a string');
    data = this._repair(data);
    var parser = new _xml_parser.SimpleXMLParser();
    var xmlDocument = parser.parseFromString(data);
    this._metadata = Object.create(null);

    if (xmlDocument) {
      this._parse(xmlDocument);
    }
  }

  _createClass(Metadata, [{
    key: "_repair",
    value: function _repair(data) {
      return data.replace(/^([^<]+)/, '').replace(/>\\376\\377([^<]+)/g, function (all, codes) {
        var bytes = codes.replace(/\\([0-3])([0-7])([0-7])/g, function (code, d1, d2, d3) {
          return String.fromCharCode(d1 * 64 + d2 * 8 + d3 * 1);
        }).replace(/&(amp|apos|gt|lt|quot);/g, function (str, name) {
          switch (name) {
            case 'amp':
              return '&';

            case 'apos':
              return '\'';

            case 'gt':
              return '>';

            case 'lt':
              return '<';

            case 'quot':
              return '\"';
          }

          throw new Error("_repair: ".concat(name, " isn't defined."));
        });
        var chars = '';

        for (var i = 0, ii = bytes.length; i < ii; i += 2) {
          var code = bytes.charCodeAt(i) * 256 + bytes.charCodeAt(i + 1);

          if (code >= 32 && code < 127 && code !== 60 && code !== 62 && code !== 38) {
            chars += String.fromCharCode(code);
          } else {
            chars += '&#x' + (0x10000 + code).toString(16).substring(1) + ';';
          }
        }

        return '>' + chars;
      });
    }
  }, {
    key: "_parse",
    value: function _parse(xmlDocument) {
      var rdf = xmlDocument.documentElement;

      if (rdf.nodeName.toLowerCase() !== 'rdf:rdf') {
        rdf = rdf.firstChild;

        while (rdf && rdf.nodeName.toLowerCase() !== 'rdf:rdf') {
          rdf = rdf.nextSibling;
        }
      }

      var nodeName = rdf ? rdf.nodeName.toLowerCase() : null;

      if (!rdf || nodeName !== 'rdf:rdf' || !rdf.hasChildNodes()) {
        return;
      }

      var children = rdf.childNodes;

      for (var i = 0, ii = children.length; i < ii; i++) {
        var desc = children[i];

        if (desc.nodeName.toLowerCase() !== 'rdf:description') {
          continue;
        }

        for (var j = 0, jj = desc.childNodes.length; j < jj; j++) {
          if (desc.childNodes[j].nodeName.toLowerCase() !== '#text') {
            var entry = desc.childNodes[j];
            var name = entry.nodeName.toLowerCase();
            this._metadata[name] = entry.textContent.trim();
          }
        }
      }
    }
  }, {
    key: "get",
    value: function get(name) {
      var data = this._metadata[name];
      return typeof data !== 'undefined' ? data : null;
    }
  }, {
    key: "getAll",
    value: function getAll() {
      return this._metadata;
    }
  }, {
    key: "has",
    value: function has(name) {
      return typeof this._metadata[name] !== 'undefined';
    }
  }]);

  return Metadata;
}();

exports.Metadata = Metadata;

/***/ }),
/* 159 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.SimpleXMLParser = void 0;

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }

function _iterableToArrayLimit(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }

function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }

function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var XMLParserErrorCode = {
  NoError: 0,
  EndOfDocument: -1,
  UnterminatedCdat: -2,
  UnterminatedXmlDeclaration: -3,
  UnterminatedDoctypeDeclaration: -4,
  UnterminatedComment: -5,
  MalformedElement: -6,
  OutOfMemory: -7,
  UnterminatedAttributeValue: -8,
  UnterminatedElement: -9,
  ElementNeverBegun: -10
};

function isWhitespace(s, index) {
  var ch = s[index];
  return ch === ' ' || ch === '\n' || ch === '\r' || ch === '\t';
}

function isWhitespaceString(s) {
  for (var i = 0, ii = s.length; i < ii; i++) {
    if (!isWhitespace(s, i)) {
      return false;
    }
  }

  return true;
}

var XMLParserBase =
/*#__PURE__*/
function () {
  function XMLParserBase() {
    _classCallCheck(this, XMLParserBase);
  }

  _createClass(XMLParserBase, [{
    key: "_resolveEntities",
    value: function _resolveEntities(s) {
      var _this = this;

      return s.replace(/&([^;]+);/g, function (all, entity) {
        if (entity.substring(0, 2) === '#x') {
          return String.fromCharCode(parseInt(entity.substring(2), 16));
        } else if (entity.substring(0, 1) === '#') {
          return String.fromCharCode(parseInt(entity.substring(1), 10));
        }

        switch (entity) {
          case 'lt':
            return '<';

          case 'gt':
            return '>';

          case 'amp':
            return '&';

          case 'quot':
            return '\"';
        }

        return _this.onResolveEntity(entity);
      });
    }
  }, {
    key: "_parseContent",
    value: function _parseContent(s, start) {
      var pos = start,
          name,
          attributes = [];

      function skipWs() {
        while (pos < s.length && isWhitespace(s, pos)) {
          ++pos;
        }
      }

      while (pos < s.length && !isWhitespace(s, pos) && s[pos] !== '>' && s[pos] !== '/') {
        ++pos;
      }

      name = s.substring(start, pos);
      skipWs();

      while (pos < s.length && s[pos] !== '>' && s[pos] !== '/' && s[pos] !== '?') {
        skipWs();
        var attrName = '',
            attrValue = '';

        while (pos < s.length && !isWhitespace(s, pos) && s[pos] !== '=') {
          attrName += s[pos];
          ++pos;
        }

        skipWs();

        if (s[pos] !== '=') {
          return null;
        }

        ++pos;
        skipWs();
        var attrEndChar = s[pos];

        if (attrEndChar !== '\"' && attrEndChar !== '\'') {
          return null;
        }

        var attrEndIndex = s.indexOf(attrEndChar, ++pos);

        if (attrEndIndex < 0) {
          return null;
        }

        attrValue = s.substring(pos, attrEndIndex);
        attributes.push({
          name: attrName,
          value: this._resolveEntities(attrValue)
        });
        pos = attrEndIndex + 1;
        skipWs();
      }

      return {
        name: name,
        attributes: attributes,
        parsed: pos - start
      };
    }
  }, {
    key: "_parseProcessingInstruction",
    value: function _parseProcessingInstruction(s, start) {
      var pos = start,
          name,
          value;

      function skipWs() {
        while (pos < s.length && isWhitespace(s, pos)) {
          ++pos;
        }
      }

      while (pos < s.length && !isWhitespace(s, pos) && s[pos] !== '>' && s[pos] !== '/') {
        ++pos;
      }

      name = s.substring(start, pos);
      skipWs();
      var attrStart = pos;

      while (pos < s.length && (s[pos] !== '?' || s[pos + 1] !== '>')) {
        ++pos;
      }

      value = s.substring(attrStart, pos);
      return {
        name: name,
        value: value,
        parsed: pos - start
      };
    }
  }, {
    key: "parseXml",
    value: function parseXml(s) {
      var i = 0;

      while (i < s.length) {
        var ch = s[i];
        var j = i;

        if (ch === '<') {
          ++j;
          var ch2 = s[j];
          var q = void 0;

          switch (ch2) {
            case '/':
              ++j;
              q = s.indexOf('>', j);

              if (q < 0) {
                this.onError(XMLParserErrorCode.UnterminatedElement);
                return;
              }

              this.onEndElement(s.substring(j, q));
              j = q + 1;
              break;

            case '?':
              ++j;

              var pi = this._parseProcessingInstruction(s, j);

              if (s.substring(j + pi.parsed, j + pi.parsed + 2) !== '?>') {
                this.onError(XMLParserErrorCode.UnterminatedXmlDeclaration);
                return;
              }

              this.onPi(pi.name, pi.value);
              j += pi.parsed + 2;
              break;

            case '!':
              if (s.substring(j + 1, j + 3) === '--') {
                q = s.indexOf('-->', j + 3);

                if (q < 0) {
                  this.onError(XMLParserErrorCode.UnterminatedComment);
                  return;
                }

                this.onComment(s.substring(j + 3, q));
                j = q + 3;
              } else if (s.substring(j + 1, j + 8) === '[CDATA[') {
                q = s.indexOf(']]>', j + 8);

                if (q < 0) {
                  this.onError(XMLParserErrorCode.UnterminatedCdat);
                  return;
                }

                this.onCdata(s.substring(j + 8, q));
                j = q + 3;
              } else if (s.substring(j + 1, j + 8) === 'DOCTYPE') {
                var q2 = s.indexOf('[', j + 8);
                var complexDoctype = false;
                q = s.indexOf('>', j + 8);

                if (q < 0) {
                  this.onError(XMLParserErrorCode.UnterminatedDoctypeDeclaration);
                  return;
                }

                if (q2 > 0 && q > q2) {
                  q = s.indexOf(']>', j + 8);

                  if (q < 0) {
                    this.onError(XMLParserErrorCode.UnterminatedDoctypeDeclaration);
                    return;
                  }

                  complexDoctype = true;
                }

                var doctypeContent = s.substring(j + 8, q + (complexDoctype ? 1 : 0));
                this.onDoctype(doctypeContent);
                j = q + (complexDoctype ? 2 : 1);
              } else {
                this.onError(XMLParserErrorCode.MalformedElement);
                return;
              }

              break;

            default:
              var content = this._parseContent(s, j);

              if (content === null) {
                this.onError(XMLParserErrorCode.MalformedElement);
                return;
              }

              var isClosed = false;

              if (s.substring(j + content.parsed, j + content.parsed + 2) === '/>') {
                isClosed = true;
              } else if (s.substring(j + content.parsed, j + content.parsed + 1) !== '>') {
                this.onError(XMLParserErrorCode.UnterminatedElement);
                return;
              }

              this.onBeginElement(content.name, content.attributes, isClosed);
              j += content.parsed + (isClosed ? 2 : 1);
              break;
          }
        } else {
          while (j < s.length && s[j] !== '<') {
            j++;
          }

          var text = s.substring(i, j);
          this.onText(this._resolveEntities(text));
        }

        i = j;
      }
    }
  }, {
    key: "onResolveEntity",
    value: function onResolveEntity(name) {
      return "&".concat(name, ";");
    }
  }, {
    key: "onPi",
    value: function onPi(name, value) {}
  }, {
    key: "onComment",
    value: function onComment(text) {}
  }, {
    key: "onCdata",
    value: function onCdata(text) {}
  }, {
    key: "onDoctype",
    value: function onDoctype(doctypeContent) {}
  }, {
    key: "onText",
    value: function onText(text) {}
  }, {
    key: "onBeginElement",
    value: function onBeginElement(name, attributes, isEmpty) {}
  }, {
    key: "onEndElement",
    value: function onEndElement(name) {}
  }, {
    key: "onError",
    value: function onError(code) {}
  }]);

  return XMLParserBase;
}();

var SimpleDOMNode =
/*#__PURE__*/
function () {
  function SimpleDOMNode(nodeName, nodeValue) {
    _classCallCheck(this, SimpleDOMNode);

    this.nodeName = nodeName;
    this.nodeValue = nodeValue;
    Object.defineProperty(this, 'parentNode', {
      value: null,
      writable: true
    });
  }

  _createClass(SimpleDOMNode, [{
    key: "hasChildNodes",
    value: function hasChildNodes() {
      return this.childNodes && this.childNodes.length > 0;
    }
  }, {
    key: "firstChild",
    get: function get() {
      return this.childNodes && this.childNodes[0];
    }
  }, {
    key: "nextSibling",
    get: function get() {
      var childNodes = this.parentNode.childNodes;

      if (!childNodes) {
        return undefined;
      }

      var index = childNodes.indexOf(this);

      if (index === -1) {
        return undefined;
      }

      return childNodes[index + 1];
    }
  }, {
    key: "textContent",
    get: function get() {
      if (!this.childNodes) {
        return this.nodeValue || '';
      }

      return this.childNodes.map(function (child) {
        return child.textContent;
      }).join('');
    }
  }]);

  return SimpleDOMNode;
}();

var SimpleXMLParser =
/*#__PURE__*/
function (_XMLParserBase) {
  _inherits(SimpleXMLParser, _XMLParserBase);

  function SimpleXMLParser() {
    var _this2;

    _classCallCheck(this, SimpleXMLParser);

    _this2 = _possibleConstructorReturn(this, _getPrototypeOf(SimpleXMLParser).call(this));
    _this2._currentFragment = null;
    _this2._stack = null;
    _this2._errorCode = XMLParserErrorCode.NoError;
    return _this2;
  }

  _createClass(SimpleXMLParser, [{
    key: "parseFromString",
    value: function parseFromString(data) {
      this._currentFragment = [];
      this._stack = [];
      this._errorCode = XMLParserErrorCode.NoError;
      this.parseXml(data);

      if (this._errorCode !== XMLParserErrorCode.NoError) {
        return undefined;
      }

      var _this$_currentFragmen = _slicedToArray(this._currentFragment, 1),
          documentElement = _this$_currentFragmen[0];

      if (!documentElement) {
        return undefined;
      }

      return {
        documentElement: documentElement
      };
    }
  }, {
    key: "onResolveEntity",
    value: function onResolveEntity(name) {
      switch (name) {
        case 'apos':
          return '\'';
      }

      return _get(_getPrototypeOf(SimpleXMLParser.prototype), "onResolveEntity", this).call(this, name);
    }
  }, {
    key: "onText",
    value: function onText(text) {
      if (isWhitespaceString(text)) {
        return;
      }

      var node = new SimpleDOMNode('#text', text);

      this._currentFragment.push(node);
    }
  }, {
    key: "onCdata",
    value: function onCdata(text) {
      var node = new SimpleDOMNode('#text', text);

      this._currentFragment.push(node);
    }
  }, {
    key: "onBeginElement",
    value: function onBeginElement(name, attributes, isEmpty) {
      var node = new SimpleDOMNode(name);
      node.childNodes = [];

      this._currentFragment.push(node);

      if (isEmpty) {
        return;
      }

      this._stack.push(this._currentFragment);

      this._currentFragment = node.childNodes;
    }
  }, {
    key: "onEndElement",
    value: function onEndElement(name) {
      this._currentFragment = this._stack.pop() || [];
      var lastElement = this._currentFragment[this._currentFragment.length - 1];

      if (!lastElement) {
        return;
      }

      for (var i = 0, ii = lastElement.childNodes.length; i < ii; i++) {
        lastElement.childNodes[i].parentNode = lastElement;
      }
    }
  }, {
    key: "onError",
    value: function onError(code) {
      this._errorCode = code;
    }
  }]);

  return SimpleXMLParser;
}(XMLParserBase);

exports.SimpleXMLParser = SimpleXMLParser;

/***/ }),
/* 160 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PDFDataTransportStream = void 0;

var _regenerator = _interopRequireDefault(__w_pdfjs_require__(148));

var _util = __w_pdfjs_require__(1);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var PDFDataTransportStream =
/*#__PURE__*/
function () {
  function PDFDataTransportStream(params, pdfDataRangeTransport) {
    var _this = this;

    _classCallCheck(this, PDFDataTransportStream);

    (0, _util.assert)(pdfDataRangeTransport);
    this._queuedChunks = [];
    this._progressiveDone = params.progressiveDone || false;
    var initialData = params.initialData;

    if (initialData && initialData.length > 0) {
      var buffer = new Uint8Array(initialData).buffer;

      this._queuedChunks.push(buffer);
    }

    this._pdfDataRangeTransport = pdfDataRangeTransport;
    this._isStreamingSupported = !params.disableStream;
    this._isRangeSupported = !params.disableRange;
    this._contentLength = params.length;
    this._fullRequestReader = null;
    this._rangeReaders = [];

    this._pdfDataRangeTransport.addRangeListener(function (begin, chunk) {
      _this._onReceiveData({
        begin: begin,
        chunk: chunk
      });
    });

    this._pdfDataRangeTransport.addProgressListener(function (loaded, total) {
      _this._onProgress({
        loaded: loaded,
        total: total
      });
    });

    this._pdfDataRangeTransport.addProgressiveReadListener(function (chunk) {
      _this._onReceiveData({
        chunk: chunk
      });
    });

    this._pdfDataRangeTransport.addProgressiveDoneListener(function () {
      _this._onProgressiveDone();
    });

    this._pdfDataRangeTransport.transportReady();
  }

  _createClass(PDFDataTransportStream, [{
    key: "_onReceiveData",
    value: function _onReceiveData(args) {
      var buffer = new Uint8Array(args.chunk).buffer;

      if (args.begin === undefined) {
        if (this._fullRequestReader) {
          this._fullRequestReader._enqueue(buffer);
        } else {
          this._queuedChunks.push(buffer);
        }
      } else {
        var found = this._rangeReaders.some(function (rangeReader) {
          if (rangeReader._begin !== args.begin) {
            return false;
          }

          rangeReader._enqueue(buffer);

          return true;
        });

        (0, _util.assert)(found);
      }
    }
  }, {
    key: "_onProgress",
    value: function _onProgress(evt) {
      if (evt.total === undefined) {
        var firstReader = this._rangeReaders[0];

        if (firstReader && firstReader.onProgress) {
          firstReader.onProgress({
            loaded: evt.loaded
          });
        }
      } else {
        var fullReader = this._fullRequestReader;

        if (fullReader && fullReader.onProgress) {
          fullReader.onProgress({
            loaded: evt.loaded,
            total: evt.total
          });
        }
      }
    }
  }, {
    key: "_onProgressiveDone",
    value: function _onProgressiveDone() {
      if (this._fullRequestReader) {
        this._fullRequestReader.progressiveDone();
      }

      this._progressiveDone = true;
    }
  }, {
    key: "_removeRangeReader",
    value: function _removeRangeReader(reader) {
      var i = this._rangeReaders.indexOf(reader);

      if (i >= 0) {
        this._rangeReaders.splice(i, 1);
      }
    }
  }, {
    key: "getFullReader",
    value: function getFullReader() {
      (0, _util.assert)(!this._fullRequestReader);
      var queuedChunks = this._queuedChunks;
      this._queuedChunks = null;
      return new PDFDataTransportStreamReader(this, queuedChunks, this._progressiveDone);
    }
  }, {
    key: "getRangeReader",
    value: function getRangeReader(begin, end) {
      if (end <= this._progressiveDataLength) {
        return null;
      }

      var reader = new PDFDataTransportStreamRangeReader(this, begin, end);

      this._pdfDataRangeTransport.requestDataRange(begin, end);

      this._rangeReaders.push(reader);

      return reader;
    }
  }, {
    key: "cancelAllRequests",
    value: function cancelAllRequests(reason) {
      if (this._fullRequestReader) {
        this._fullRequestReader.cancel(reason);
      }

      var readers = this._rangeReaders.slice(0);

      readers.forEach(function (rangeReader) {
        rangeReader.cancel(reason);
      });

      this._pdfDataRangeTransport.abort();
    }
  }, {
    key: "_progressiveDataLength",
    get: function get() {
      return this._fullRequestReader ? this._fullRequestReader._loaded : 0;
    }
  }]);

  return PDFDataTransportStream;
}();

exports.PDFDataTransportStream = PDFDataTransportStream;

var PDFDataTransportStreamReader =
/*#__PURE__*/
function () {
  function PDFDataTransportStreamReader(stream, queuedChunks) {
    var progressiveDone = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

    _classCallCheck(this, PDFDataTransportStreamReader);

    this._stream = stream;
    this._done = progressiveDone || false;
    this._filename = null;
    this._queuedChunks = queuedChunks || [];
    this._loaded = 0;
    var _iteratorNormalCompletion = true;
    var _didIteratorError = false;
    var _iteratorError = undefined;

    try {
      for (var _iterator = this._queuedChunks[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
        var chunk = _step.value;
        this._loaded += chunk.byteLength;
      }
    } catch (err) {
      _didIteratorError = true;
      _iteratorError = err;
    } finally {
      try {
        if (!_iteratorNormalCompletion && _iterator["return"] != null) {
          _iterator["return"]();
        }
      } finally {
        if (_didIteratorError) {
          throw _iteratorError;
        }
      }
    }

    this._requests = [];
    this._headersReady = Promise.resolve();
    stream._fullRequestReader = this;
    this.onProgress = null;
  }

  _createClass(PDFDataTransportStreamReader, [{
    key: "_enqueue",
    value: function _enqueue(chunk) {
      if (this._done) {
        return;
      }

      if (this._requests.length > 0) {
        var requestCapability = this._requests.shift();

        requestCapability.resolve({
          value: chunk,
          done: false
        });
      } else {
        this._queuedChunks.push(chunk);
      }

      this._loaded += chunk.byteLength;
    }
  }, {
    key: "read",
    value: function () {
      var _read = _asyncToGenerator(
      /*#__PURE__*/
      _regenerator["default"].mark(function _callee() {
        var chunk, requestCapability;
        return _regenerator["default"].wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                if (!(this._queuedChunks.length > 0)) {
                  _context.next = 3;
                  break;
                }

                chunk = this._queuedChunks.shift();
                return _context.abrupt("return", {
                  value: chunk,
                  done: false
                });

              case 3:
                if (!this._done) {
                  _context.next = 5;
                  break;
                }

                return _context.abrupt("return", {
                  value: undefined,
                  done: true
                });

              case 5:
                requestCapability = (0, _util.createPromiseCapability)();

                this._requests.push(requestCapability);

                return _context.abrupt("return", requestCapability.promise);

              case 8:
              case "end":
                return _context.stop();
            }
          }
        }, _callee, this);
      }));

      function read() {
        return _read.apply(this, arguments);
      }

      return read;
    }()
  }, {
    key: "cancel",
    value: function cancel(reason) {
      this._done = true;

      this._requests.forEach(function (requestCapability) {
        requestCapability.resolve({
          value: undefined,
          done: true
        });
      });

      this._requests = [];
    }
  }, {
    key: "progressiveDone",
    value: function progressiveDone() {
      if (this._done) {
        return;
      }

      this._done = true;
    }
  }, {
    key: "headersReady",
    get: function get() {
      return this._headersReady;
    }
  }, {
    key: "filename",
    get: function get() {
      return this._filename;
    }
  }, {
    key: "isRangeSupported",
    get: function get() {
      return this._stream._isRangeSupported;
    }
  }, {
    key: "isStreamingSupported",
    get: function get() {
      return this._stream._isStreamingSupported;
    }
  }, {
    key: "contentLength",
    get: function get() {
      return this._stream._contentLength;
    }
  }]);

  return PDFDataTransportStreamReader;
}();

var PDFDataTransportStreamRangeReader =
/*#__PURE__*/
function () {
  function PDFDataTransportStreamRangeReader(stream, begin, end) {
    _classCallCheck(this, PDFDataTransportStreamRangeReader);

    this._stream = stream;
    this._begin = begin;
    this._end = end;
    this._queuedChunk = null;
    this._requests = [];
    this._done = false;
    this.onProgress = null;
  }

  _createClass(PDFDataTransportStreamRangeReader, [{
    key: "_enqueue",
    value: function _enqueue(chunk) {
      if (this._done) {
        return;
      }

      if (this._requests.length === 0) {
        this._queuedChunk = chunk;
      } else {
        var requestsCapability = this._requests.shift();

        requestsCapability.resolve({
          value: chunk,
          done: false
        });

        this._requests.forEach(function (requestCapability) {
          requestCapability.resolve({
            value: undefined,
            done: true
          });
        });

        this._requests = [];
      }

      this._done = true;

      this._stream._removeRangeReader(this);
    }
  }, {
    key: "read",
    value: function () {
      var _read2 = _asyncToGenerator(
      /*#__PURE__*/
      _regenerator["default"].mark(function _callee2() {
        var chunk, requestCapability;
        return _regenerator["default"].wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                if (!this._queuedChunk) {
                  _context2.next = 4;
                  break;
                }

                chunk = this._queuedChunk;
                this._queuedChunk = null;
                return _context2.abrupt("return", {
                  value: chunk,
                  done: false
                });

              case 4:
                if (!this._done) {
                  _context2.next = 6;
                  break;
                }

                return _context2.abrupt("return", {
                  value: undefined,
                  done: true
                });

              case 6:
                requestCapability = (0, _util.createPromiseCapability)();

                this._requests.push(requestCapability);

                return _context2.abrupt("return", requestCapability.promise);

              case 9:
              case "end":
                return _context2.stop();
            }
          }
        }, _callee2, this);
      }));

      function read() {
        return _read2.apply(this, arguments);
      }

      return read;
    }()
  }, {
    key: "cancel",
    value: function cancel(reason) {
      this._done = true;

      this._requests.forEach(function (requestCapability) {
        requestCapability.resolve({
          value: undefined,
          done: true
        });
      });

      this._requests = [];

      this._stream._removeRangeReader(this);
    }
  }, {
    key: "isStreamingSupported",
    get: function get() {
      return false;
    }
  }]);

  return PDFDataTransportStreamRangeReader;
}();

/***/ }),
/* 161 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.WebGLContext = void 0;

var _util = __w_pdfjs_require__(1);

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var WebGLContext =
/*#__PURE__*/
function () {
  function WebGLContext(_ref) {
    var _ref$enable = _ref.enable,
        enable = _ref$enable === void 0 ? false : _ref$enable;

    _classCallCheck(this, WebGLContext);

    this._enabled = enable === true;
  }

  _createClass(WebGLContext, [{
    key: "composeSMask",
    value: function composeSMask(_ref2) {
      var layer = _ref2.layer,
          mask = _ref2.mask,
          properties = _ref2.properties;
      return WebGLUtils.composeSMask(layer, mask, properties);
    }
  }, {
    key: "drawFigures",
    value: function drawFigures(_ref3) {
      var width = _ref3.width,
          height = _ref3.height,
          backgroundColor = _ref3.backgroundColor,
          figures = _ref3.figures,
          context = _ref3.context;
      return WebGLUtils.drawFigures(width, height, backgroundColor, figures, context);
    }
  }, {
    key: "clear",
    value: function clear() {
      WebGLUtils.cleanup();
    }
  }, {
    key: "isEnabled",
    get: function get() {
      var enabled = this._enabled;

      if (enabled) {
        enabled = WebGLUtils.tryInitGL();
      }

      return (0, _util.shadow)(this, 'isEnabled', enabled);
    }
  }]);

  return WebGLContext;
}();

exports.WebGLContext = WebGLContext;

var WebGLUtils = function WebGLUtilsClosure() {
  function loadShader(gl, code, shaderType) {
    var shader = gl.createShader(shaderType);
    gl.shaderSource(shader, code);
    gl.compileShader(shader);
    var compiled = gl.getShaderParameter(shader, gl.COMPILE_STATUS);

    if (!compiled) {
      var errorMsg = gl.getShaderInfoLog(shader);
      throw new Error('Error during shader compilation: ' + errorMsg);
    }

    return shader;
  }

  function createVertexShader(gl, code) {
    return loadShader(gl, code, gl.VERTEX_SHADER);
  }

  function createFragmentShader(gl, code) {
    return loadShader(gl, code, gl.FRAGMENT_SHADER);
  }

  function createProgram(gl, shaders) {
    var program = gl.createProgram();

    for (var i = 0, ii = shaders.length; i < ii; ++i) {
      gl.attachShader(program, shaders[i]);
    }

    gl.linkProgram(program);
    var linked = gl.getProgramParameter(program, gl.LINK_STATUS);

    if (!linked) {
      var errorMsg = gl.getProgramInfoLog(program);
      throw new Error('Error during program linking: ' + errorMsg);
    }

    return program;
  }

  function createTexture(gl, image, textureId) {
    gl.activeTexture(textureId);
    var texture = gl.createTexture();
    gl.bindTexture(gl.TEXTURE_2D, texture);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST);
    gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST);
    gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.RGBA, gl.UNSIGNED_BYTE, image);
    return texture;
  }

  var currentGL, currentCanvas;

  function generateGL() {
    if (currentGL) {
      return;
    }

    currentCanvas = document.createElement('canvas');
    currentGL = currentCanvas.getContext('webgl', {
      premultipliedalpha: false
    });
  }

  var smaskVertexShaderCode = '\
  attribute vec2 a_position;                                    \
  attribute vec2 a_texCoord;                                    \
                                                                \
  uniform vec2 u_resolution;                                    \
                                                                \
  varying vec2 v_texCoord;                                      \
                                                                \
  void main() {                                                 \
    vec2 clipSpace = (a_position / u_resolution) * 2.0 - 1.0;   \
    gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1);          \
                                                                \
    v_texCoord = a_texCoord;                                    \
  }                                                             ';
  var smaskFragmentShaderCode = '\
  precision mediump float;                                      \
                                                                \
  uniform vec4 u_backdrop;                                      \
  uniform int u_subtype;                                        \
  uniform sampler2D u_image;                                    \
  uniform sampler2D u_mask;                                     \
                                                                \
  varying vec2 v_texCoord;                                      \
                                                                \
  void main() {                                                 \
    vec4 imageColor = texture2D(u_image, v_texCoord);           \
    vec4 maskColor = texture2D(u_mask, v_texCoord);             \
    if (u_backdrop.a > 0.0) {                                   \
      maskColor.rgb = maskColor.rgb * maskColor.a +             \
                      u_backdrop.rgb * (1.0 - maskColor.a);     \
    }                                                           \
    float lum;                                                  \
    if (u_subtype == 0) {                                       \
      lum = maskColor.a;                                        \
    } else {                                                    \
      lum = maskColor.r * 0.3 + maskColor.g * 0.59 +            \
            maskColor.b * 0.11;                                 \
    }                                                           \
    imageColor.a *= lum;                                        \
    imageColor.rgb *= imageColor.a;                             \
    gl_FragColor = imageColor;                                  \
  }                                                             ';
  var smaskCache = null;

  function initSmaskGL() {
    var canvas, gl;
    generateGL();
    canvas = currentCanvas;
    currentCanvas = null;
    gl = currentGL;
    currentGL = null;
    var vertexShader = createVertexShader(gl, smaskVertexShaderCode);
    var fragmentShader = createFragmentShader(gl, smaskFragmentShaderCode);
    var program = createProgram(gl, [vertexShader, fragmentShader]);
    gl.useProgram(program);
    var cache = {};
    cache.gl = gl;
    cache.canvas = canvas;
    cache.resolutionLocation = gl.getUniformLocation(program, 'u_resolution');
    cache.positionLocation = gl.getAttribLocation(program, 'a_position');
    cache.backdropLocation = gl.getUniformLocation(program, 'u_backdrop');
    cache.subtypeLocation = gl.getUniformLocation(program, 'u_subtype');
    var texCoordLocation = gl.getAttribLocation(program, 'a_texCoord');
    var texLayerLocation = gl.getUniformLocation(program, 'u_image');
    var texMaskLocation = gl.getUniformLocation(program, 'u_mask');
    var texCoordBuffer = gl.createBuffer();
    gl.bindBuffer(gl.ARRAY_BUFFER, texCoordBuffer);
    gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([0.0, 0.0, 1.0, 0.0, 0.0, 1.0, 0.0, 1.0, 1.0, 0.0, 1.0, 1.0]), gl.STATIC_DRAW);
    gl.enableVertexAttribArray(texCoordLocation);
    gl.vertexAttribPointer(texCoordLocation, 2, gl.FLOAT, false, 0, 0);
    gl.uniform1i(texLayerLocation, 0);
    gl.uniform1i(texMaskLocation, 1);
    smaskCache = cache;
  }

  function composeSMask(layer, mask, properties) {
    var width = layer.width,
        height = layer.height;

    if (!smaskCache) {
      initSmaskGL();
    }

    var cache = smaskCache,
        canvas = cache.canvas,
        gl = cache.gl;
    canvas.width = width;
    canvas.height = height;
    gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
    gl.uniform2f(cache.resolutionLocation, width, height);

    if (properties.backdrop) {
      gl.uniform4f(cache.resolutionLocation, properties.backdrop[0], properties.backdrop[1], properties.backdrop[2], 1);
    } else {
      gl.uniform4f(cache.resolutionLocation, 0, 0, 0, 0);
    }

    gl.uniform1i(cache.subtypeLocation, properties.subtype === 'Luminosity' ? 1 : 0);
    var texture = createTexture(gl, layer, gl.TEXTURE0);
    var maskTexture = createTexture(gl, mask, gl.TEXTURE1);
    var buffer = gl.createBuffer();
    gl.bindBuffer(gl.ARRAY_BUFFER, buffer);
    gl.bufferData(gl.ARRAY_BUFFER, new Float32Array([0, 0, width, 0, 0, height, 0, height, width, 0, width, height]), gl.STATIC_DRAW);
    gl.enableVertexAttribArray(cache.positionLocation);
    gl.vertexAttribPointer(cache.positionLocation, 2, gl.FLOAT, false, 0, 0);
    gl.clearColor(0, 0, 0, 0);
    gl.enable(gl.BLEND);
    gl.blendFunc(gl.ONE, gl.ONE_MINUS_SRC_ALPHA);
    gl.clear(gl.COLOR_BUFFER_BIT);
    gl.drawArrays(gl.TRIANGLES, 0, 6);
    gl.flush();
    gl.deleteTexture(texture);
    gl.deleteTexture(maskTexture);
    gl.deleteBuffer(buffer);
    return canvas;
  }

  var figuresVertexShaderCode = '\
  attribute vec2 a_position;                                    \
  attribute vec3 a_color;                                       \
                                                                \
  uniform vec2 u_resolution;                                    \
  uniform vec2 u_scale;                                         \
  uniform vec2 u_offset;                                        \
                                                                \
  varying vec4 v_color;                                         \
                                                                \
  void main() {                                                 \
    vec2 position = (a_position + u_offset) * u_scale;          \
    vec2 clipSpace = (position / u_resolution) * 2.0 - 1.0;     \
    gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1);          \
                                                                \
    v_color = vec4(a_color / 255.0, 1.0);                       \
  }                                                             ';
  var figuresFragmentShaderCode = '\
  precision mediump float;                                      \
                                                                \
  varying vec4 v_color;                                         \
                                                                \
  void main() {                                                 \
    gl_FragColor = v_color;                                     \
  }                                                             ';
  var figuresCache = null;

  function initFiguresGL() {
    var canvas, gl;
    generateGL();
    canvas = currentCanvas;
    currentCanvas = null;
    gl = currentGL;
    currentGL = null;
    var vertexShader = createVertexShader(gl, figuresVertexShaderCode);
    var fragmentShader = createFragmentShader(gl, figuresFragmentShaderCode);
    var program = createProgram(gl, [vertexShader, fragmentShader]);
    gl.useProgram(program);
    var cache = {};
    cache.gl = gl;
    cache.canvas = canvas;
    cache.resolutionLocation = gl.getUniformLocation(program, 'u_resolution');
    cache.scaleLocation = gl.getUniformLocation(program, 'u_scale');
    cache.offsetLocation = gl.getUniformLocation(program, 'u_offset');
    cache.positionLocation = gl.getAttribLocation(program, 'a_position');
    cache.colorLocation = gl.getAttribLocation(program, 'a_color');
    figuresCache = cache;
  }

  function drawFigures(width, height, backgroundColor, figures, context) {
    if (!figuresCache) {
      initFiguresGL();
    }

    var cache = figuresCache,
        canvas = cache.canvas,
        gl = cache.gl;
    canvas.width = width;
    canvas.height = height;
    gl.viewport(0, 0, gl.drawingBufferWidth, gl.drawingBufferHeight);
    gl.uniform2f(cache.resolutionLocation, width, height);
    var count = 0;
    var i, ii, rows;

    for (i = 0, ii = figures.length; i < ii; i++) {
      switch (figures[i].type) {
        case 'lattice':
          rows = figures[i].coords.length / figures[i].verticesPerRow | 0;
          count += (rows - 1) * (figures[i].verticesPerRow - 1) * 6;
          break;

        case 'triangles':
          count += figures[i].coords.length;
          break;
      }
    }

    var coords = new Float32Array(count * 2);
    var colors = new Uint8Array(count * 3);
    var coordsMap = context.coords,
        colorsMap = context.colors;
    var pIndex = 0,
        cIndex = 0;

    for (i = 0, ii = figures.length; i < ii; i++) {
      var figure = figures[i],
          ps = figure.coords,
          cs = figure.colors;

      switch (figure.type) {
        case 'lattice':
          var cols = figure.verticesPerRow;
          rows = ps.length / cols | 0;

          for (var row = 1; row < rows; row++) {
            var offset = row * cols + 1;

            for (var col = 1; col < cols; col++, offset++) {
              coords[pIndex] = coordsMap[ps[offset - cols - 1]];
              coords[pIndex + 1] = coordsMap[ps[offset - cols - 1] + 1];
              coords[pIndex + 2] = coordsMap[ps[offset - cols]];
              coords[pIndex + 3] = coordsMap[ps[offset - cols] + 1];
              coords[pIndex + 4] = coordsMap[ps[offset - 1]];
              coords[pIndex + 5] = coordsMap[ps[offset - 1] + 1];
              colors[cIndex] = colorsMap[cs[offset - cols - 1]];
              colors[cIndex + 1] = colorsMap[cs[offset - cols - 1] + 1];
              colors[cIndex + 2] = colorsMap[cs[offset - cols - 1] + 2];
              colors[cIndex + 3] = colorsMap[cs[offset - cols]];
              colors[cIndex + 4] = colorsMap[cs[offset - cols] + 1];
              colors[cIndex + 5] = colorsMap[cs[offset - cols] + 2];
              colors[cIndex + 6] = colorsMap[cs[offset - 1]];
              colors[cIndex + 7] = colorsMap[cs[offset - 1] + 1];
              colors[cIndex + 8] = colorsMap[cs[offset - 1] + 2];
              coords[pIndex + 6] = coords[pIndex + 2];
              coords[pIndex + 7] = coords[pIndex + 3];
              coords[pIndex + 8] = coords[pIndex + 4];
              coords[pIndex + 9] = coords[pIndex + 5];
              coords[pIndex + 10] = coordsMap[ps[offset]];
              coords[pIndex + 11] = coordsMap[ps[offset] + 1];
              colors[cIndex + 9] = colors[cIndex + 3];
              colors[cIndex + 10] = colors[cIndex + 4];
              colors[cIndex + 11] = colors[cIndex + 5];
              colors[cIndex + 12] = colors[cIndex + 6];
              colors[cIndex + 13] = colors[cIndex + 7];
              colors[cIndex + 14] = colors[cIndex + 8];
              colors[cIndex + 15] = colorsMap[cs[offset]];
              colors[cIndex + 16] = colorsMap[cs[offset] + 1];
              colors[cIndex + 17] = colorsMap[cs[offset] + 2];
              pIndex += 12;
              cIndex += 18;
            }
          }

          break;

        case 'triangles':
          for (var j = 0, jj = ps.length; j < jj; j++) {
            coords[pIndex] = coordsMap[ps[j]];
            coords[pIndex + 1] = coordsMap[ps[j] + 1];
            colors[cIndex] = colorsMap[cs[j]];
            colors[cIndex + 1] = colorsMap[cs[j] + 1];
            colors[cIndex + 2] = colorsMap[cs[j] + 2];
            pIndex += 2;
            cIndex += 3;
          }

          break;
      }
    }

    if (backgroundColor) {
      gl.clearColor(backgroundColor[0] / 255, backgroundColor[1] / 255, backgroundColor[2] / 255, 1.0);
    } else {
      gl.clearColor(0, 0, 0, 0);
    }

    gl.clear(gl.COLOR_BUFFER_BIT);
    var coordsBuffer = gl.createBuffer();
    gl.bindBuffer(gl.ARRAY_BUFFER, coordsBuffer);
    gl.bufferData(gl.ARRAY_BUFFER, coords, gl.STATIC_DRAW);
    gl.enableVertexAttribArray(cache.positionLocation);
    gl.vertexAttribPointer(cache.positionLocation, 2, gl.FLOAT, false, 0, 0);
    var colorsBuffer = gl.createBuffer();
    gl.bindBuffer(gl.ARRAY_BUFFER, colorsBuffer);
    gl.bufferData(gl.ARRAY_BUFFER, colors, gl.STATIC_DRAW);
    gl.enableVertexAttribArray(cache.colorLocation);
    gl.vertexAttribPointer(cache.colorLocation, 3, gl.UNSIGNED_BYTE, false, 0, 0);
    gl.uniform2f(cache.scaleLocation, context.scaleX, context.scaleY);
    gl.uniform2f(cache.offsetLocation, context.offsetX, context.offsetY);
    gl.drawArrays(gl.TRIANGLES, 0, count);
    gl.flush();
    gl.deleteBuffer(coordsBuffer);
    gl.deleteBuffer(colorsBuffer);
    return canvas;
  }

  return {
    tryInitGL: function tryInitGL() {
      try {
        generateGL();
        return !!currentGL;
      } catch (ex) {}

      return false;
    },
    composeSMask: composeSMask,
    drawFigures: drawFigures,
    cleanup: function cleanup() {
      if (smaskCache && smaskCache.canvas) {
        smaskCache.canvas.width = 0;
        smaskCache.canvas.height = 0;
      }

      if (figuresCache && figuresCache.canvas) {
        figuresCache.canvas.width = 0;
        figuresCache.canvas.height = 0;
      }

      smaskCache = null;
      figuresCache = null;
    }
  };
}();

/***/ }),
/* 162 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.renderTextLayer = void 0;

var _util = __w_pdfjs_require__(1);

var _global_scope = _interopRequireDefault(__w_pdfjs_require__(3));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

var renderTextLayer = function renderTextLayerClosure() {
  var MAX_TEXT_DIVS_TO_RENDER = 100000;
  var NonWhitespaceRegexp = /\S/;

  function isAllWhitespace(str) {
    return !NonWhitespaceRegexp.test(str);
  }

  var styleBuf = ['left: ', 0, 'px; top: ', 0, 'px; font-size: ', 0, 'px; font-family: ', '', ';'];

  function appendText(task, geom, styles) {
    var textDiv = document.createElement('span');
    var textDivProperties = {
      style: null,
      angle: 0,
      canvasWidth: 0,
      isWhitespace: false,
      originalTransform: null,
      paddingBottom: 0,
      paddingLeft: 0,
      paddingRight: 0,
      paddingTop: 0,
      scale: 1
    };

    task._textDivs.push(textDiv);

    if (isAllWhitespace(geom.str)) {
      textDivProperties.isWhitespace = true;

      task._textDivProperties.set(textDiv, textDivProperties);

      return;
    }

    var tx = _util.Util.transform(task._viewport.transform, geom.transform);

    var angle = Math.atan2(tx[1], tx[0]);
    var style = styles[geom.fontName];

    if (style.vertical) {
      angle += Math.PI / 2;
    }

    var fontHeight = Math.sqrt(tx[2] * tx[2] + tx[3] * tx[3]);
    var fontAscent = fontHeight;

    if (style.ascent) {
      fontAscent = style.ascent * fontAscent;
    } else if (style.descent) {
      fontAscent = (1 + style.descent) * fontAscent;
    }

    var left;
    var top;

    if (angle === 0) {
      left = tx[4];
      top = tx[5] - fontAscent;
    } else {
      left = tx[4] + fontAscent * Math.sin(angle);
      top = tx[5] - fontAscent * Math.cos(angle);
    }

    styleBuf[1] = left;
    styleBuf[3] = top;
    styleBuf[5] = fontHeight;
    styleBuf[7] = style.fontFamily;
    textDivProperties.style = styleBuf.join('');
    textDiv.setAttribute('style', textDivProperties.style);
    textDiv.textContent = geom.str;

    if (task._fontInspectorEnabled) {
      textDiv.dataset.fontName = geom.fontName;
    }

    if (angle !== 0) {
      textDivProperties.angle = angle * (180 / Math.PI);
    }

    if (geom.str.length > 1) {
      if (style.vertical) {
        textDivProperties.canvasWidth = geom.height * task._viewport.scale;
      } else {
        textDivProperties.canvasWidth = geom.width * task._viewport.scale;
      }
    }

    task._textDivProperties.set(textDiv, textDivProperties);

    if (task._textContentStream) {
      task._layoutText(textDiv);
    }

    if (task._enhanceTextSelection) {
      var angleCos = 1,
          angleSin = 0;

      if (angle !== 0) {
        angleCos = Math.cos(angle);
        angleSin = Math.sin(angle);
      }

      var divWidth = (style.vertical ? geom.height : geom.width) * task._viewport.scale;
      var divHeight = fontHeight;
      var m, b;

      if (angle !== 0) {
        m = [angleCos, angleSin, -angleSin, angleCos, left, top];
        b = _util.Util.getAxialAlignedBoundingBox([0, 0, divWidth, divHeight], m);
      } else {
        b = [left, top, left + divWidth, top + divHeight];
      }

      task._bounds.push({
        left: b[0],
        top: b[1],
        right: b[2],
        bottom: b[3],
        div: textDiv,
        size: [divWidth, divHeight],
        m: m
      });
    }
  }

  function render(task) {
    if (task._canceled) {
      return;
    }

    var textDivs = task._textDivs;
    var capability = task._capability;
    var textDivsLength = textDivs.length;

    if (textDivsLength > MAX_TEXT_DIVS_TO_RENDER) {
      task._renderingDone = true;
      capability.resolve();
      return;
    }

    if (!task._textContentStream) {
      for (var i = 0; i < textDivsLength; i++) {
        task._layoutText(textDivs[i]);
      }
    }

    task._renderingDone = true;
    capability.resolve();
  }

  function expand(task) {
    var bounds = task._bounds;
    var viewport = task._viewport;
    var expanded = expandBounds(viewport.width, viewport.height, bounds);

    for (var i = 0; i < expanded.length; i++) {
      var div = bounds[i].div;

      var divProperties = task._textDivProperties.get(div);

      if (divProperties.angle === 0) {
        divProperties.paddingLeft = bounds[i].left - expanded[i].left;
        divProperties.paddingTop = bounds[i].top - expanded[i].top;
        divProperties.paddingRight = expanded[i].right - bounds[i].right;
        divProperties.paddingBottom = expanded[i].bottom - bounds[i].bottom;

        task._textDivProperties.set(div, divProperties);

        continue;
      }

      var e = expanded[i],
          b = bounds[i];
      var m = b.m,
          c = m[0],
          s = m[1];
      var points = [[0, 0], [0, b.size[1]], [b.size[0], 0], b.size];
      var ts = new Float64Array(64);
      points.forEach(function (p, i) {
        var t = _util.Util.applyTransform(p, m);

        ts[i + 0] = c && (e.left - t[0]) / c;
        ts[i + 4] = s && (e.top - t[1]) / s;
        ts[i + 8] = c && (e.right - t[0]) / c;
        ts[i + 12] = s && (e.bottom - t[1]) / s;
        ts[i + 16] = s && (e.left - t[0]) / -s;
        ts[i + 20] = c && (e.top - t[1]) / c;
        ts[i + 24] = s && (e.right - t[0]) / -s;
        ts[i + 28] = c && (e.bottom - t[1]) / c;
        ts[i + 32] = c && (e.left - t[0]) / -c;
        ts[i + 36] = s && (e.top - t[1]) / -s;
        ts[i + 40] = c && (e.right - t[0]) / -c;
        ts[i + 44] = s && (e.bottom - t[1]) / -s;
        ts[i + 48] = s && (e.left - t[0]) / s;
        ts[i + 52] = c && (e.top - t[1]) / -c;
        ts[i + 56] = s && (e.right - t[0]) / s;
        ts[i + 60] = c && (e.bottom - t[1]) / -c;
      });

      var findPositiveMin = function findPositiveMin(ts, offset, count) {
        var result = 0;

        for (var i = 0; i < count; i++) {
          var t = ts[offset++];

          if (t > 0) {
            result = result ? Math.min(t, result) : t;
          }
        }

        return result;
      };

      var boxScale = 1 + Math.min(Math.abs(c), Math.abs(s));
      divProperties.paddingLeft = findPositiveMin(ts, 32, 16) / boxScale;
      divProperties.paddingTop = findPositiveMin(ts, 48, 16) / boxScale;
      divProperties.paddingRight = findPositiveMin(ts, 0, 16) / boxScale;
      divProperties.paddingBottom = findPositiveMin(ts, 16, 16) / boxScale;

      task._textDivProperties.set(div, divProperties);
    }
  }

  function expandBounds(width, height, boxes) {
    var bounds = boxes.map(function (box, i) {
      return {
        x1: box.left,
        y1: box.top,
        x2: box.right,
        y2: box.bottom,
        index: i,
        x1New: undefined,
        x2New: undefined
      };
    });
    expandBoundsLTR(width, bounds);
    var expanded = new Array(boxes.length);
    bounds.forEach(function (b) {
      var i = b.index;
      expanded[i] = {
        left: b.x1New,
        top: 0,
        right: b.x2New,
        bottom: 0
      };
    });
    boxes.map(function (box, i) {
      var e = expanded[i],
          b = bounds[i];
      b.x1 = box.top;
      b.y1 = width - e.right;
      b.x2 = box.bottom;
      b.y2 = width - e.left;
      b.index = i;
      b.x1New = undefined;
      b.x2New = undefined;
    });
    expandBoundsLTR(height, bounds);
    bounds.forEach(function (b) {
      var i = b.index;
      expanded[i].top = b.x1New;
      expanded[i].bottom = b.x2New;
    });
    return expanded;
  }

  function expandBoundsLTR(width, bounds) {
    bounds.sort(function (a, b) {
      return a.x1 - b.x1 || a.index - b.index;
    });
    var fakeBoundary = {
      x1: -Infinity,
      y1: -Infinity,
      x2: 0,
      y2: Infinity,
      index: -1,
      x1New: 0,
      x2New: 0
    };
    var horizon = [{
      start: -Infinity,
      end: Infinity,
      boundary: fakeBoundary
    }];
    bounds.forEach(function (boundary) {
      var i = 0;

      while (i < horizon.length && horizon[i].end <= boundary.y1) {
        i++;
      }

      var j = horizon.length - 1;

      while (j >= 0 && horizon[j].start >= boundary.y2) {
        j--;
      }

      var horizonPart, affectedBoundary;
      var q,
          k,
          maxXNew = -Infinity;

      for (q = i; q <= j; q++) {
        horizonPart = horizon[q];
        affectedBoundary = horizonPart.boundary;
        var xNew;

        if (affectedBoundary.x2 > boundary.x1) {
          xNew = affectedBoundary.index > boundary.index ? affectedBoundary.x1New : boundary.x1;
        } else if (affectedBoundary.x2New === undefined) {
          xNew = (affectedBoundary.x2 + boundary.x1) / 2;
        } else {
          xNew = affectedBoundary.x2New;
        }

        if (xNew > maxXNew) {
          maxXNew = xNew;
        }
      }

      boundary.x1New = maxXNew;

      for (q = i; q <= j; q++) {
        horizonPart = horizon[q];
        affectedBoundary = horizonPart.boundary;

        if (affectedBoundary.x2New === undefined) {
          if (affectedBoundary.x2 > boundary.x1) {
            if (affectedBoundary.index > boundary.index) {
              affectedBoundary.x2New = affectedBoundary.x2;
            }
          } else {
            affectedBoundary.x2New = maxXNew;
          }
        } else if (affectedBoundary.x2New > maxXNew) {
          affectedBoundary.x2New = Math.max(maxXNew, affectedBoundary.x2);
        }
      }

      var changedHorizon = [],
          lastBoundary = null;

      for (q = i; q <= j; q++) {
        horizonPart = horizon[q];
        affectedBoundary = horizonPart.boundary;
        var useBoundary = affectedBoundary.x2 > boundary.x2 ? affectedBoundary : boundary;

        if (lastBoundary === useBoundary) {
          changedHorizon[changedHorizon.length - 1].end = horizonPart.end;
        } else {
          changedHorizon.push({
            start: horizonPart.start,
            end: horizonPart.end,
            boundary: useBoundary
          });
          lastBoundary = useBoundary;
        }
      }

      if (horizon[i].start < boundary.y1) {
        changedHorizon[0].start = boundary.y1;
        changedHorizon.unshift({
          start: horizon[i].start,
          end: boundary.y1,
          boundary: horizon[i].boundary
        });
      }

      if (boundary.y2 < horizon[j].end) {
        changedHorizon[changedHorizon.length - 1].end = boundary.y2;
        changedHorizon.push({
          start: boundary.y2,
          end: horizon[j].end,
          boundary: horizon[j].boundary
        });
      }

      for (q = i; q <= j; q++) {
        horizonPart = horizon[q];
        affectedBoundary = horizonPart.boundary;

        if (affectedBoundary.x2New !== undefined) {
          continue;
        }

        var used = false;

        for (k = i - 1; !used && k >= 0 && horizon[k].start >= affectedBoundary.y1; k--) {
          used = horizon[k].boundary === affectedBoundary;
        }

        for (k = j + 1; !used && k < horizon.length && horizon[k].end <= affectedBoundary.y2; k++) {
          used = horizon[k].boundary === affectedBoundary;
        }

        for (k = 0; !used && k < changedHorizon.length; k++) {
          used = changedHorizon[k].boundary === affectedBoundary;
        }

        if (!used) {
          affectedBoundary.x2New = maxXNew;
        }
      }

      Array.prototype.splice.apply(horizon, [i, j - i + 1].concat(changedHorizon));
    });
    horizon.forEach(function (horizonPart) {
      var affectedBoundary = horizonPart.boundary;

      if (affectedBoundary.x2New === undefined) {
        affectedBoundary.x2New = Math.max(width, affectedBoundary.x2);
      }
    });
  }

  function TextLayerRenderTask(_ref) {
    var _this = this;

    var textContent = _ref.textContent,
        textContentStream = _ref.textContentStream,
        container = _ref.container,
        viewport = _ref.viewport,
        textDivs = _ref.textDivs,
        textContentItemsStr = _ref.textContentItemsStr,
        enhanceTextSelection = _ref.enhanceTextSelection;
    this._textContent = textContent;
    this._textContentStream = textContentStream;
    this._container = container;
    this._viewport = viewport;
    this._textDivs = textDivs || [];
    this._textContentItemsStr = textContentItemsStr || [];
    this._enhanceTextSelection = !!enhanceTextSelection;
    this._fontInspectorEnabled = !!(_global_scope["default"].FontInspector && _global_scope["default"].FontInspector.enabled);
    this._reader = null;
    this._layoutTextLastFontSize = null;
    this._layoutTextLastFontFamily = null;
    this._layoutTextCtx = null;
    this._textDivProperties = new WeakMap();
    this._renderingDone = false;
    this._canceled = false;
    this._capability = (0, _util.createPromiseCapability)();
    this._renderTimer = null;
    this._bounds = [];

    this._capability.promise["finally"](function () {
      if (_this._layoutTextCtx) {
        _this._layoutTextCtx.canvas.width = 0;
        _this._layoutTextCtx.canvas.height = 0;
        _this._layoutTextCtx = null;
      }
    })["catch"](function () {});
  }

  TextLayerRenderTask.prototype = {
    get promise() {
      return this._capability.promise;
    },

    cancel: function TextLayer_cancel() {
      this._canceled = true;

      if (this._reader) {
        this._reader.cancel(new _util.AbortException('TextLayer task cancelled.'));

        this._reader = null;
      }

      if (this._renderTimer !== null) {
        clearTimeout(this._renderTimer);
        this._renderTimer = null;
      }

      this._capability.reject(new Error('TextLayer task cancelled.'));
    },
    _processItems: function _processItems(items, styleCache) {
      for (var i = 0, len = items.length; i < len; i++) {
        this._textContentItemsStr.push(items[i].str);

        appendText(this, items[i], styleCache);
      }
    },
    _layoutText: function _layoutText(textDiv) {
      var textLayerFrag = this._container;

      var textDivProperties = this._textDivProperties.get(textDiv);

      if (textDivProperties.isWhitespace) {
        return;
      }

      var fontSize = textDiv.style.fontSize;
      var fontFamily = textDiv.style.fontFamily;

      if (fontSize !== this._layoutTextLastFontSize || fontFamily !== this._layoutTextLastFontFamily) {
        this._layoutTextCtx.font = fontSize + ' ' + fontFamily;
        this._layoutTextLastFontSize = fontSize;
        this._layoutTextLastFontFamily = fontFamily;
      }

      var width = this._layoutTextCtx.measureText(textDiv.textContent).width;

      var transform = '';

      if (textDivProperties.canvasWidth !== 0 && width > 0) {
        textDivProperties.scale = textDivProperties.canvasWidth / width;
        transform = "scaleX(".concat(textDivProperties.scale, ")");
      }

      if (textDivProperties.angle !== 0) {
        transform = "rotate(".concat(textDivProperties.angle, "deg) ").concat(transform);
      }

      if (transform.length > 0) {
        textDivProperties.originalTransform = transform;
        textDiv.style.transform = transform;
      }

      this._textDivProperties.set(textDiv, textDivProperties);

      textLayerFrag.appendChild(textDiv);
    },
    _render: function TextLayer_render(timeout) {
      var _this2 = this;

      var capability = (0, _util.createPromiseCapability)();
      var styleCache = Object.create(null);
      var canvas = document.createElement('canvas');
      canvas.mozOpaque = true;
      this._layoutTextCtx = canvas.getContext('2d', {
        alpha: false
      });

      if (this._textContent) {
        var textItems = this._textContent.items;
        var textStyles = this._textContent.styles;

        this._processItems(textItems, textStyles);

        capability.resolve();
      } else if (this._textContentStream) {
        var pump = function pump() {
          _this2._reader.read().then(function (_ref2) {
            var value = _ref2.value,
                done = _ref2.done;

            if (done) {
              capability.resolve();
              return;
            }

            Object.assign(styleCache, value.styles);

            _this2._processItems(value.items, styleCache);

            pump();
          }, capability.reject);
        };

        this._reader = this._textContentStream.getReader();
        pump();
      } else {
        throw new Error('Neither "textContent" nor "textContentStream"' + ' parameters specified.');
      }

      capability.promise.then(function () {
        styleCache = null;

        if (!timeout) {
          render(_this2);
        } else {
          _this2._renderTimer = setTimeout(function () {
            render(_this2);
            _this2._renderTimer = null;
          }, timeout);
        }
      }, this._capability.reject);
    },
    expandTextDivs: function TextLayer_expandTextDivs(expandDivs) {
      if (!this._enhanceTextSelection || !this._renderingDone) {
        return;
      }

      if (this._bounds !== null) {
        expand(this);
        this._bounds = null;
      }

      for (var i = 0, ii = this._textDivs.length; i < ii; i++) {
        var div = this._textDivs[i];

        var divProperties = this._textDivProperties.get(div);

        if (divProperties.isWhitespace) {
          continue;
        }

        if (expandDivs) {
          var transform = '',
              padding = '';

          if (divProperties.scale !== 1) {
            transform = 'scaleX(' + divProperties.scale + ')';
          }

          if (divProperties.angle !== 0) {
            transform = 'rotate(' + divProperties.angle + 'deg) ' + transform;
          }

          if (divProperties.paddingLeft !== 0) {
            padding += ' padding-left: ' + divProperties.paddingLeft / divProperties.scale + 'px;';
            transform += ' translateX(' + -divProperties.paddingLeft / divProperties.scale + 'px)';
          }

          if (divProperties.paddingTop !== 0) {
            padding += ' padding-top: ' + divProperties.paddingTop + 'px;';
            transform += ' translateY(' + -divProperties.paddingTop + 'px)';
          }

          if (divProperties.paddingRight !== 0) {
            padding += ' padding-right: ' + divProperties.paddingRight / divProperties.scale + 'px;';
          }

          if (divProperties.paddingBottom !== 0) {
            padding += ' padding-bottom: ' + divProperties.paddingBottom + 'px;';
          }

          if (padding !== '') {
            div.setAttribute('style', divProperties.style + padding);
          }

          if (transform !== '') {
            div.style.transform = transform;
          }
        } else {
          div.style.padding = 0;
          div.style.transform = divProperties.originalTransform || '';
        }
      }
    }
  };

  function renderTextLayer(renderParameters) {
    var task = new TextLayerRenderTask({
      textContent: renderParameters.textContent,
      textContentStream: renderParameters.textContentStream,
      container: renderParameters.container,
      viewport: renderParameters.viewport,
      textDivs: renderParameters.textDivs,
      textContentItemsStr: renderParameters.textContentItemsStr,
      enhanceTextSelection: renderParameters.enhanceTextSelection
    });

    task._render(renderParameters.timeout);

    return task;
  }

  return renderTextLayer;
}();

exports.renderTextLayer = renderTextLayer;

/***/ }),
/* 163 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.AnnotationLayer = void 0;

var _display_utils = __w_pdfjs_require__(151);

var _util = __w_pdfjs_require__(1);

function _get(target, property, receiver) { if (typeof Reflect !== "undefined" && Reflect.get) { _get = Reflect.get; } else { _get = function _get(target, property, receiver) { var base = _superPropBase(target, property); if (!base) return; var desc = Object.getOwnPropertyDescriptor(base, property); if (desc.get) { return desc.get.call(receiver); } return desc.value; }; } return _get(target, property, receiver || target); }

function _superPropBase(object, property) { while (!Object.prototype.hasOwnProperty.call(object, property)) { object = _getPrototypeOf(object); if (object === null) break; } return object; }

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }

function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var AnnotationElementFactory =
/*#__PURE__*/
function () {
  function AnnotationElementFactory() {
    _classCallCheck(this, AnnotationElementFactory);
  }

  _createClass(AnnotationElementFactory, null, [{
    key: "create",
    value: function create(parameters) {
      var subtype = parameters.data.annotationType;

      switch (subtype) {
        case _util.AnnotationType.LINK:
          return new LinkAnnotationElement(parameters);

        case _util.AnnotationType.TEXT:
          return new TextAnnotationElement(parameters);

        case _util.AnnotationType.WIDGET:
          var fieldType = parameters.data.fieldType;

          switch (fieldType) {
            case 'Tx':
              return new TextWidgetAnnotationElement(parameters);

            case 'Btn':
              if (parameters.data.radioButton) {
                return new RadioButtonWidgetAnnotationElement(parameters);
              } else if (parameters.data.checkBox) {
                return new CheckboxWidgetAnnotationElement(parameters);
              }

              return new PushButtonWidgetAnnotationElement(parameters);

            case 'Ch':
              return new ChoiceWidgetAnnotationElement(parameters);
          }

          return new WidgetAnnotationElement(parameters);

        case _util.AnnotationType.POPUP:
          return new PopupAnnotationElement(parameters);

        case _util.AnnotationType.FREETEXT:
          return new FreeTextAnnotationElement(parameters);

        case _util.AnnotationType.LINE:
          return new LineAnnotationElement(parameters);

        case _util.AnnotationType.SQUARE:
          return new SquareAnnotationElement(parameters);

        case _util.AnnotationType.CIRCLE:
          return new CircleAnnotationElement(parameters);

        case _util.AnnotationType.POLYLINE:
          return new PolylineAnnotationElement(parameters);

        case _util.AnnotationType.CARET:
          return new CaretAnnotationElement(parameters);

        case _util.AnnotationType.INK:
          return new InkAnnotationElement(parameters);

        case _util.AnnotationType.POLYGON:
          return new PolygonAnnotationElement(parameters);

        case _util.AnnotationType.HIGHLIGHT:
          return new HighlightAnnotationElement(parameters);

        case _util.AnnotationType.UNDERLINE:
          return new UnderlineAnnotationElement(parameters);

        case _util.AnnotationType.SQUIGGLY:
          return new SquigglyAnnotationElement(parameters);

        case _util.AnnotationType.STRIKEOUT:
          return new StrikeOutAnnotationElement(parameters);

        case _util.AnnotationType.STAMP:
          return new StampAnnotationElement(parameters);

        case _util.AnnotationType.FILEATTACHMENT:
          return new FileAttachmentAnnotationElement(parameters);

        default:
          return new AnnotationElement(parameters);
      }
    }
  }]);

  return AnnotationElementFactory;
}();

var AnnotationElement =
/*#__PURE__*/
function () {
  function AnnotationElement(parameters) {
    var isRenderable = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
    var ignoreBorder = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

    _classCallCheck(this, AnnotationElement);

    this.isRenderable = isRenderable;
    this.data = parameters.data;
    this.layer = parameters.layer;
    this.page = parameters.page;
    this.viewport = parameters.viewport;
    this.linkService = parameters.linkService;
    this.downloadManager = parameters.downloadManager;
    this.imageResourcesPath = parameters.imageResourcesPath;
    this.renderInteractiveForms = parameters.renderInteractiveForms;
    this.svgFactory = parameters.svgFactory;

    if (isRenderable) {
      this.container = this._createContainer(ignoreBorder);
    }
  }

  _createClass(AnnotationElement, [{
    key: "_createContainer",
    value: function _createContainer() {
      var ignoreBorder = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
      var data = this.data,
          page = this.page,
          viewport = this.viewport;
      var container = document.createElement('section');
      var width = data.rect[2] - data.rect[0];
      var height = data.rect[3] - data.rect[1];
      container.setAttribute('data-annotation-id', data.id);

      var rect = _util.Util.normalizeRect([data.rect[0], page.view[3] - data.rect[1] + page.view[1], data.rect[2], page.view[3] - data.rect[3] + page.view[1]]);

      container.style.transform = 'matrix(' + viewport.transform.join(',') + ')';
      container.style.transformOrigin = -rect[0] + 'px ' + -rect[1] + 'px';

      if (!ignoreBorder && data.borderStyle.width > 0) {
        container.style.borderWidth = data.borderStyle.width + 'px';

        if (data.borderStyle.style !== _util.AnnotationBorderStyleType.UNDERLINE) {
          width = width - 2 * data.borderStyle.width;
          height = height - 2 * data.borderStyle.width;
        }

        var horizontalRadius = data.borderStyle.horizontalCornerRadius;
        var verticalRadius = data.borderStyle.verticalCornerRadius;

        if (horizontalRadius > 0 || verticalRadius > 0) {
          var radius = horizontalRadius + 'px / ' + verticalRadius + 'px';
          container.style.borderRadius = radius;
        }

        switch (data.borderStyle.style) {
          case _util.AnnotationBorderStyleType.SOLID:
            container.style.borderStyle = 'solid';
            break;

          case _util.AnnotationBorderStyleType.DASHED:
            container.style.borderStyle = 'dashed';
            break;

          case _util.AnnotationBorderStyleType.BEVELED:
            (0, _util.warn)('Unimplemented border style: beveled');
            break;

          case _util.AnnotationBorderStyleType.INSET:
            (0, _util.warn)('Unimplemented border style: inset');
            break;

          case _util.AnnotationBorderStyleType.UNDERLINE:
            container.style.borderBottomStyle = 'solid';
            break;

          default:
            break;
        }

        if (data.color) {
          container.style.borderColor = _util.Util.makeCssRgb(data.color[0] | 0, data.color[1] | 0, data.color[2] | 0);
        } else {
          container.style.borderWidth = 0;
        }
      }

      container.style.left = rect[0] + 'px';
      container.style.top = rect[1] + 'px';
      container.style.width = width + 'px';
      container.style.height = height + 'px';
      return container;
    }
  }, {
    key: "_createPopup",
    value: function _createPopup(container, trigger, data) {
      if (!trigger) {
        trigger = document.createElement('div');
        trigger.style.height = container.style.height;
        trigger.style.width = container.style.width;
        container.appendChild(trigger);
      }

      var popupElement = new PopupElement({
        container: container,
        trigger: trigger,
        color: data.color,
        title: data.title,
        modificationDate: data.modificationDate,
        contents: data.contents,
        hideWrapper: true
      });
      var popup = popupElement.render();
      popup.style.left = container.style.width;
      container.appendChild(popup);
    }
  }, {
    key: "render",
    value: function render() {
      (0, _util.unreachable)('Abstract method `AnnotationElement.render` called');
    }
  }]);

  return AnnotationElement;
}();

var LinkAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement) {
  _inherits(LinkAnnotationElement, _AnnotationElement);

  function LinkAnnotationElement(parameters) {
    _classCallCheck(this, LinkAnnotationElement);

    var isRenderable = !!(parameters.data.url || parameters.data.dest || parameters.data.action);
    return _possibleConstructorReturn(this, _getPrototypeOf(LinkAnnotationElement).call(this, parameters, isRenderable));
  }

  _createClass(LinkAnnotationElement, [{
    key: "render",
    value: function render() {
      this.container.className = 'linkAnnotation';
      var data = this.data,
          linkService = this.linkService;
      var link = document.createElement('a');
      (0, _display_utils.addLinkAttributes)(link, {
        url: data.url,
        target: data.newWindow ? _display_utils.LinkTarget.BLANK : linkService.externalLinkTarget,
        rel: linkService.externalLinkRel
      });

      if (!data.url) {
        if (data.action) {
          this._bindNamedAction(link, data.action);
        } else {
          this._bindLink(link, data.dest);
        }
      }

      this.container.appendChild(link);
      return this.container;
    }
  }, {
    key: "_bindLink",
    value: function _bindLink(link, destination) {
      var _this = this;

      link.href = this.linkService.getDestinationHash(destination);

      link.onclick = function () {
        if (destination) {
          _this.linkService.navigateTo(destination);
        }

        return false;
      };

      if (destination) {
        link.className = 'internalLink';
      }
    }
  }, {
    key: "_bindNamedAction",
    value: function _bindNamedAction(link, action) {
      var _this2 = this;

      link.href = this.linkService.getAnchorUrl('');

      link.onclick = function () {
        _this2.linkService.executeNamedAction(action);

        return false;
      };

      link.className = 'internalLink';
    }
  }]);

  return LinkAnnotationElement;
}(AnnotationElement);

var TextAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement2) {
  _inherits(TextAnnotationElement, _AnnotationElement2);

  function TextAnnotationElement(parameters) {
    _classCallCheck(this, TextAnnotationElement);

    var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
    return _possibleConstructorReturn(this, _getPrototypeOf(TextAnnotationElement).call(this, parameters, isRenderable));
  }

  _createClass(TextAnnotationElement, [{
    key: "render",
    value: function render() {
      this.container.className = 'textAnnotation';
      var image = document.createElement('img');
      image.style.height = this.container.style.height;
      image.style.width = this.container.style.width;
      image.src = this.imageResourcesPath + 'annotation-' + this.data.name.toLowerCase() + '.svg';
      image.alt = '[{{type}} Annotation]';
      image.dataset.l10nId = 'text_annotation_type';
      image.dataset.l10nArgs = JSON.stringify({
        type: this.data.name
      });

      if (!this.data.hasPopup) {
        this._createPopup(this.container, image, this.data);
      }

      this.container.appendChild(image);
      return this.container;
    }
  }]);

  return TextAnnotationElement;
}(AnnotationElement);

var WidgetAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement3) {
  _inherits(WidgetAnnotationElement, _AnnotationElement3);

  function WidgetAnnotationElement() {
    _classCallCheck(this, WidgetAnnotationElement);

    return _possibleConstructorReturn(this, _getPrototypeOf(WidgetAnnotationElement).apply(this, arguments));
  }

  _createClass(WidgetAnnotationElement, [{
    key: "render",
    value: function render() {
      return this.container;
    }
  }]);

  return WidgetAnnotationElement;
}(AnnotationElement);

var TextWidgetAnnotationElement =
/*#__PURE__*/
function (_WidgetAnnotationElem) {
  _inherits(TextWidgetAnnotationElement, _WidgetAnnotationElem);

  function TextWidgetAnnotationElement(parameters) {
    _classCallCheck(this, TextWidgetAnnotationElement);

    var isRenderable = parameters.renderInteractiveForms || !parameters.data.hasAppearance && !!parameters.data.fieldValue;
    return _possibleConstructorReturn(this, _getPrototypeOf(TextWidgetAnnotationElement).call(this, parameters, isRenderable));
  }

  _createClass(TextWidgetAnnotationElement, [{
    key: "render",
    value: function render() {
      var TEXT_ALIGNMENT = ['left', 'center', 'right'];
      this.container.className = 'textWidgetAnnotation';
      var element = null;

      if (this.renderInteractiveForms) {
        if (this.data.multiLine) {
          element = document.createElement('textarea');
          element.textContent = this.data.fieldValue;
        } else {
          element = document.createElement('input');
          element.type = 'text';
          element.setAttribute('value', this.data.fieldValue);
        }

        element.disabled = this.data.readOnly;

        if (this.data.maxLen !== null) {
          element.maxLength = this.data.maxLen;
        }

        if (this.data.comb) {
          var fieldWidth = this.data.rect[2] - this.data.rect[0];
          var combWidth = fieldWidth / this.data.maxLen;
          element.classList.add('comb');
          element.style.letterSpacing = 'calc(' + combWidth + 'px - 1ch)';
        }
      } else {
        element = document.createElement('div');
        element.textContent = this.data.fieldValue;
        element.style.verticalAlign = 'middle';
        element.style.display = 'table-cell';
        var font = null;

        if (this.data.fontRefName && this.page.commonObjs.has(this.data.fontRefName)) {
          font = this.page.commonObjs.get(this.data.fontRefName);
        }

        this._setTextStyle(element, font);
      }

      if (this.data.textAlignment !== null) {
        element.style.textAlign = TEXT_ALIGNMENT[this.data.textAlignment];
      }

      this.container.appendChild(element);
      return this.container;
    }
  }, {
    key: "_setTextStyle",
    value: function _setTextStyle(element, font) {
      var style = element.style;
      style.fontSize = this.data.fontSize + 'px';
      style.direction = this.data.fontDirection < 0 ? 'rtl' : 'ltr';

      if (!font) {
        return;
      }

      style.fontWeight = font.black ? font.bold ? '900' : 'bold' : font.bold ? 'bold' : 'normal';
      style.fontStyle = font.italic ? 'italic' : 'normal';
      var fontFamily = font.loadedName ? '"' + font.loadedName + '", ' : '';
      var fallbackName = font.fallbackName || 'Helvetica, sans-serif';
      style.fontFamily = fontFamily + fallbackName;
    }
  }]);

  return TextWidgetAnnotationElement;
}(WidgetAnnotationElement);

var CheckboxWidgetAnnotationElement =
/*#__PURE__*/
function (_WidgetAnnotationElem2) {
  _inherits(CheckboxWidgetAnnotationElement, _WidgetAnnotationElem2);

  function CheckboxWidgetAnnotationElement(parameters) {
    _classCallCheck(this, CheckboxWidgetAnnotationElement);

    return _possibleConstructorReturn(this, _getPrototypeOf(CheckboxWidgetAnnotationElement).call(this, parameters, parameters.renderInteractiveForms));
  }

  _createClass(CheckboxWidgetAnnotationElement, [{
    key: "render",
    value: function render() {
      this.container.className = 'buttonWidgetAnnotation checkBox';
      var element = document.createElement('input');
      element.disabled = this.data.readOnly;
      element.type = 'checkbox';

      if (this.data.fieldValue && this.data.fieldValue !== 'Off') {
        element.setAttribute('checked', true);
      }

      this.container.appendChild(element);
      return this.container;
    }
  }]);

  return CheckboxWidgetAnnotationElement;
}(WidgetAnnotationElement);

var RadioButtonWidgetAnnotationElement =
/*#__PURE__*/
function (_WidgetAnnotationElem3) {
  _inherits(RadioButtonWidgetAnnotationElement, _WidgetAnnotationElem3);

  function RadioButtonWidgetAnnotationElement(parameters) {
    _classCallCheck(this, RadioButtonWidgetAnnotationElement);

    return _possibleConstructorReturn(this, _getPrototypeOf(RadioButtonWidgetAnnotationElement).call(this, parameters, parameters.renderInteractiveForms));
  }

  _createClass(RadioButtonWidgetAnnotationElement, [{
    key: "render",
    value: function render() {
      this.container.className = 'buttonWidgetAnnotation radioButton';
      var element = document.createElement('input');
      element.disabled = this.data.readOnly;
      element.type = 'radio';
      element.name = this.data.fieldName;

      if (this.data.fieldValue === this.data.buttonValue) {
        element.setAttribute('checked', true);
      }

      this.container.appendChild(element);
      return this.container;
    }
  }]);

  return RadioButtonWidgetAnnotationElement;
}(WidgetAnnotationElement);

var PushButtonWidgetAnnotationElement =
/*#__PURE__*/
function (_LinkAnnotationElemen) {
  _inherits(PushButtonWidgetAnnotationElement, _LinkAnnotationElemen);

  function PushButtonWidgetAnnotationElement() {
    _classCallCheck(this, PushButtonWidgetAnnotationElement);

    return _possibleConstructorReturn(this, _getPrototypeOf(PushButtonWidgetAnnotationElement).apply(this, arguments));
  }

  _createClass(PushButtonWidgetAnnotationElement, [{
    key: "render",
    value: function render() {
      var container = _get(_getPrototypeOf(PushButtonWidgetAnnotationElement.prototype), "render", this).call(this);

      container.className = 'buttonWidgetAnnotation pushButton';
      return container;
    }
  }]);

  return PushButtonWidgetAnnotationElement;
}(LinkAnnotationElement);

var ChoiceWidgetAnnotationElement =
/*#__PURE__*/
function (_WidgetAnnotationElem4) {
  _inherits(ChoiceWidgetAnnotationElement, _WidgetAnnotationElem4);

  function ChoiceWidgetAnnotationElement(parameters) {
    _classCallCheck(this, ChoiceWidgetAnnotationElement);

    return _possibleConstructorReturn(this, _getPrototypeOf(ChoiceWidgetAnnotationElement).call(this, parameters, parameters.renderInteractiveForms));
  }

  _createClass(ChoiceWidgetAnnotationElement, [{
    key: "render",
    value: function render() {
      this.container.className = 'choiceWidgetAnnotation';
      var selectElement = document.createElement('select');
      selectElement.disabled = this.data.readOnly;

      if (!this.data.combo) {
        selectElement.size = this.data.options.length;

        if (this.data.multiSelect) {
          selectElement.multiple = true;
        }
      }

      for (var i = 0, ii = this.data.options.length; i < ii; i++) {
        var option = this.data.options[i];
        var optionElement = document.createElement('option');
        optionElement.textContent = option.displayValue;
        optionElement.value = option.exportValue;

        if (this.data.fieldValue.includes(option.displayValue)) {
          optionElement.setAttribute('selected', true);
        }

        selectElement.appendChild(optionElement);
      }

      this.container.appendChild(selectElement);
      return this.container;
    }
  }]);

  return ChoiceWidgetAnnotationElement;
}(WidgetAnnotationElement);

var PopupAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement4) {
  _inherits(PopupAnnotationElement, _AnnotationElement4);

  function PopupAnnotationElement(parameters) {
    _classCallCheck(this, PopupAnnotationElement);

    var isRenderable = !!(parameters.data.title || parameters.data.contents);
    return _possibleConstructorReturn(this, _getPrototypeOf(PopupAnnotationElement).call(this, parameters, isRenderable));
  }

  _createClass(PopupAnnotationElement, [{
    key: "render",
    value: function render() {
      var IGNORE_TYPES = ['Line', 'Square', 'Circle', 'PolyLine', 'Polygon', 'Ink'];
      this.container.className = 'popupAnnotation';

      if (IGNORE_TYPES.includes(this.data.parentType)) {
        return this.container;
      }

      var selector = '[data-annotation-id="' + this.data.parentId + '"]';
      var parentElement = this.layer.querySelector(selector);

      if (!parentElement) {
        return this.container;
      }

      var popup = new PopupElement({
        container: this.container,
        trigger: parentElement,
        color: this.data.color,
        title: this.data.title,
        modificationDate: this.data.modificationDate,
        contents: this.data.contents
      });
      var parentLeft = parseFloat(parentElement.style.left);
      var parentWidth = parseFloat(parentElement.style.width);
      this.container.style.transformOrigin = -(parentLeft + parentWidth) + 'px -' + parentElement.style.top;
      this.container.style.left = parentLeft + parentWidth + 'px';
      this.container.appendChild(popup.render());
      return this.container;
    }
  }]);

  return PopupAnnotationElement;
}(AnnotationElement);

var PopupElement =
/*#__PURE__*/
function () {
  function PopupElement(parameters) {
    _classCallCheck(this, PopupElement);

    this.container = parameters.container;
    this.trigger = parameters.trigger;
    this.color = parameters.color;
    this.title = parameters.title;
    this.modificationDate = parameters.modificationDate;
    this.contents = parameters.contents;
    this.hideWrapper = parameters.hideWrapper || false;
    this.pinned = false;
  }

  _createClass(PopupElement, [{
    key: "render",
    value: function render() {
      var BACKGROUND_ENLIGHT = 0.7;
      var wrapper = document.createElement('div');
      wrapper.className = 'popupWrapper';
      this.hideElement = this.hideWrapper ? wrapper : this.container;
      this.hideElement.setAttribute('hidden', true);
      var popup = document.createElement('div');
      popup.className = 'popup';
      var color = this.color;

      if (color) {
        var r = BACKGROUND_ENLIGHT * (255 - color[0]) + color[0];
        var g = BACKGROUND_ENLIGHT * (255 - color[1]) + color[1];
        var b = BACKGROUND_ENLIGHT * (255 - color[2]) + color[2];
        popup.style.backgroundColor = _util.Util.makeCssRgb(r | 0, g | 0, b | 0);
      }

      var title = document.createElement('h1');
      title.textContent = this.title;
      popup.appendChild(title);

      var dateObject = _display_utils.PDFDateString.toDateObject(this.modificationDate);

      if (dateObject) {
        var modificationDate = document.createElement('span');
        modificationDate.textContent = '{{date}}, {{time}}';
        modificationDate.dataset.l10nId = 'annotation_date_string';
        modificationDate.dataset.l10nArgs = JSON.stringify({
          date: dateObject.toLocaleDateString(),
          time: dateObject.toLocaleTimeString()
        });
        popup.appendChild(modificationDate);
      }

      var contents = this._formatContents(this.contents);

      popup.appendChild(contents);
      this.trigger.addEventListener('click', this._toggle.bind(this));
      this.trigger.addEventListener('mouseover', this._show.bind(this, false));
      this.trigger.addEventListener('mouseout', this._hide.bind(this, false));
      popup.addEventListener('click', this._hide.bind(this, true));
      wrapper.appendChild(popup);
      return wrapper;
    }
  }, {
    key: "_formatContents",
    value: function _formatContents(contents) {
      var p = document.createElement('p');
      var lines = contents.split(/(?:\r\n?|\n)/);

      for (var i = 0, ii = lines.length; i < ii; ++i) {
        var line = lines[i];
        p.appendChild(document.createTextNode(line));

        if (i < ii - 1) {
          p.appendChild(document.createElement('br'));
        }
      }

      return p;
    }
  }, {
    key: "_toggle",
    value: function _toggle() {
      if (this.pinned) {
        this._hide(true);
      } else {
        this._show(true);
      }
    }
  }, {
    key: "_show",
    value: function _show() {
      var pin = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;

      if (pin) {
        this.pinned = true;
      }

      if (this.hideElement.hasAttribute('hidden')) {
        this.hideElement.removeAttribute('hidden');
        this.container.style.zIndex += 1;
      }
    }
  }, {
    key: "_hide",
    value: function _hide() {
      var unpin = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;

      if (unpin) {
        this.pinned = false;
      }

      if (!this.hideElement.hasAttribute('hidden') && !this.pinned) {
        this.hideElement.setAttribute('hidden', true);
        this.container.style.zIndex -= 1;
      }
    }
  }]);

  return PopupElement;
}();

var FreeTextAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement5) {
  _inherits(FreeTextAnnotationElement, _AnnotationElement5);

  function FreeTextAnnotationElement(parameters) {
    _classCallCheck(this, FreeTextAnnotationElement);

    var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
    return _possibleConstructorReturn(this, _getPrototypeOf(FreeTextAnnotationElement).call(this, parameters, isRenderable, true));
  }

  _createClass(FreeTextAnnotationElement, [{
    key: "render",
    value: function render() {
      this.container.className = 'freeTextAnnotation';

      if (!this.data.hasPopup) {
        this._createPopup(this.container, null, this.data);
      }

      return this.container;
    }
  }]);

  return FreeTextAnnotationElement;
}(AnnotationElement);

var LineAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement6) {
  _inherits(LineAnnotationElement, _AnnotationElement6);

  function LineAnnotationElement(parameters) {
    _classCallCheck(this, LineAnnotationElement);

    var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
    return _possibleConstructorReturn(this, _getPrototypeOf(LineAnnotationElement).call(this, parameters, isRenderable, true));
  }

  _createClass(LineAnnotationElement, [{
    key: "render",
    value: function render() {
      this.container.className = 'lineAnnotation';
      var data = this.data;
      var width = data.rect[2] - data.rect[0];
      var height = data.rect[3] - data.rect[1];
      var svg = this.svgFactory.create(width, height);
      var line = this.svgFactory.createElement('svg:line');
      line.setAttribute('x1', data.rect[2] - data.lineCoordinates[0]);
      line.setAttribute('y1', data.rect[3] - data.lineCoordinates[1]);
      line.setAttribute('x2', data.rect[2] - data.lineCoordinates[2]);
      line.setAttribute('y2', data.rect[3] - data.lineCoordinates[3]);
      line.setAttribute('stroke-width', data.borderStyle.width);
      line.setAttribute('stroke', 'transparent');
      svg.appendChild(line);
      this.container.append(svg);

      this._createPopup(this.container, line, data);

      return this.container;
    }
  }]);

  return LineAnnotationElement;
}(AnnotationElement);

var SquareAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement7) {
  _inherits(SquareAnnotationElement, _AnnotationElement7);

  function SquareAnnotationElement(parameters) {
    _classCallCheck(this, SquareAnnotationElement);

    var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
    return _possibleConstructorReturn(this, _getPrototypeOf(SquareAnnotationElement).call(this, parameters, isRenderable, true));
  }

  _createClass(SquareAnnotationElement, [{
    key: "render",
    value: function render() {
      this.container.className = 'squareAnnotation';
      var data = this.data;
      var width = data.rect[2] - data.rect[0];
      var height = data.rect[3] - data.rect[1];
      var svg = this.svgFactory.create(width, height);
      var borderWidth = data.borderStyle.width;
      var square = this.svgFactory.createElement('svg:rect');
      square.setAttribute('x', borderWidth / 2);
      square.setAttribute('y', borderWidth / 2);
      square.setAttribute('width', width - borderWidth);
      square.setAttribute('height', height - borderWidth);
      square.setAttribute('stroke-width', borderWidth);
      square.setAttribute('stroke', 'transparent');
      square.setAttribute('fill', 'none');
      svg.appendChild(square);
      this.container.append(svg);

      this._createPopup(this.container, square, data);

      return this.container;
    }
  }]);

  return SquareAnnotationElement;
}(AnnotationElement);

var CircleAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement8) {
  _inherits(CircleAnnotationElement, _AnnotationElement8);

  function CircleAnnotationElement(parameters) {
    _classCallCheck(this, CircleAnnotationElement);

    var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
    return _possibleConstructorReturn(this, _getPrototypeOf(CircleAnnotationElement).call(this, parameters, isRenderable, true));
  }

  _createClass(CircleAnnotationElement, [{
    key: "render",
    value: function render() {
      this.container.className = 'circleAnnotation';
      var data = this.data;
      var width = data.rect[2] - data.rect[0];
      var height = data.rect[3] - data.rect[1];
      var svg = this.svgFactory.create(width, height);
      var borderWidth = data.borderStyle.width;
      var circle = this.svgFactory.createElement('svg:ellipse');
      circle.setAttribute('cx', width / 2);
      circle.setAttribute('cy', height / 2);
      circle.setAttribute('rx', width / 2 - borderWidth / 2);
      circle.setAttribute('ry', height / 2 - borderWidth / 2);
      circle.setAttribute('stroke-width', borderWidth);
      circle.setAttribute('stroke', 'transparent');
      circle.setAttribute('fill', 'none');
      svg.appendChild(circle);
      this.container.append(svg);

      this._createPopup(this.container, circle, data);

      return this.container;
    }
  }]);

  return CircleAnnotationElement;
}(AnnotationElement);

var PolylineAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement9) {
  _inherits(PolylineAnnotationElement, _AnnotationElement9);

  function PolylineAnnotationElement(parameters) {
    var _this3;

    _classCallCheck(this, PolylineAnnotationElement);

    var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
    _this3 = _possibleConstructorReturn(this, _getPrototypeOf(PolylineAnnotationElement).call(this, parameters, isRenderable, true));
    _this3.containerClassName = 'polylineAnnotation';
    _this3.svgElementName = 'svg:polyline';
    return _this3;
  }

  _createClass(PolylineAnnotationElement, [{
    key: "render",
    value: function render() {
      this.container.className = this.containerClassName;
      var data = this.data;
      var width = data.rect[2] - data.rect[0];
      var height = data.rect[3] - data.rect[1];
      var svg = this.svgFactory.create(width, height);
      var vertices = data.vertices;
      var points = [];

      for (var i = 0, ii = vertices.length; i < ii; i++) {
        var x = vertices[i].x - data.rect[0];
        var y = data.rect[3] - vertices[i].y;
        points.push(x + ',' + y);
      }

      points = points.join(' ');
      var borderWidth = data.borderStyle.width;
      var polyline = this.svgFactory.createElement(this.svgElementName);
      polyline.setAttribute('points', points);
      polyline.setAttribute('stroke-width', borderWidth);
      polyline.setAttribute('stroke', 'transparent');
      polyline.setAttribute('fill', 'none');
      svg.appendChild(polyline);
      this.container.append(svg);

      this._createPopup(this.container, polyline, data);

      return this.container;
    }
  }]);

  return PolylineAnnotationElement;
}(AnnotationElement);

var PolygonAnnotationElement =
/*#__PURE__*/
function (_PolylineAnnotationEl) {
  _inherits(PolygonAnnotationElement, _PolylineAnnotationEl);

  function PolygonAnnotationElement(parameters) {
    var _this4;

    _classCallCheck(this, PolygonAnnotationElement);

    _this4 = _possibleConstructorReturn(this, _getPrototypeOf(PolygonAnnotationElement).call(this, parameters));
    _this4.containerClassName = 'polygonAnnotation';
    _this4.svgElementName = 'svg:polygon';
    return _this4;
  }

  return PolygonAnnotationElement;
}(PolylineAnnotationElement);

var CaretAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement10) {
  _inherits(CaretAnnotationElement, _AnnotationElement10);

  function CaretAnnotationElement(parameters) {
    _classCallCheck(this, CaretAnnotationElement);

    var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
    return _possibleConstructorReturn(this, _getPrototypeOf(CaretAnnotationElement).call(this, parameters, isRenderable, true));
  }

  _createClass(CaretAnnotationElement, [{
    key: "render",
    value: function render() {
      this.container.className = 'caretAnnotation';

      if (!this.data.hasPopup) {
        this._createPopup(this.container, null, this.data);
      }

      return this.container;
    }
  }]);

  return CaretAnnotationElement;
}(AnnotationElement);

var InkAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement11) {
  _inherits(InkAnnotationElement, _AnnotationElement11);

  function InkAnnotationElement(parameters) {
    var _this5;

    _classCallCheck(this, InkAnnotationElement);

    var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
    _this5 = _possibleConstructorReturn(this, _getPrototypeOf(InkAnnotationElement).call(this, parameters, isRenderable, true));
    _this5.containerClassName = 'inkAnnotation';
    _this5.svgElementName = 'svg:polyline';
    return _this5;
  }

  _createClass(InkAnnotationElement, [{
    key: "render",
    value: function render() {
      this.container.className = this.containerClassName;
      var data = this.data;
      var width = data.rect[2] - data.rect[0];
      var height = data.rect[3] - data.rect[1];
      var svg = this.svgFactory.create(width, height);
      var inkLists = data.inkLists;

      for (var i = 0, ii = inkLists.length; i < ii; i++) {
        var inkList = inkLists[i];
        var points = [];

        for (var j = 0, jj = inkList.length; j < jj; j++) {
          var x = inkList[j].x - data.rect[0];
          var y = data.rect[3] - inkList[j].y;
          points.push(x + ',' + y);
        }

        points = points.join(' ');
        var borderWidth = data.borderStyle.width;
        var polyline = this.svgFactory.createElement(this.svgElementName);
        polyline.setAttribute('points', points);
        polyline.setAttribute('stroke-width', borderWidth);
        polyline.setAttribute('stroke', 'transparent');
        polyline.setAttribute('fill', 'none');

        this._createPopup(this.container, polyline, data);

        svg.appendChild(polyline);
      }

      this.container.append(svg);
      return this.container;
    }
  }]);

  return InkAnnotationElement;
}(AnnotationElement);

var HighlightAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement12) {
  _inherits(HighlightAnnotationElement, _AnnotationElement12);

  function HighlightAnnotationElement(parameters) {
    _classCallCheck(this, HighlightAnnotationElement);

    var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
    return _possibleConstructorReturn(this, _getPrototypeOf(HighlightAnnotationElement).call(this, parameters, isRenderable, true));
  }

  _createClass(HighlightAnnotationElement, [{
    key: "render",
    value: function render() {
      this.container.className = 'highlightAnnotation';

      if (!this.data.hasPopup) {
        this._createPopup(this.container, null, this.data);
      }

      return this.container;
    }
  }]);

  return HighlightAnnotationElement;
}(AnnotationElement);

var UnderlineAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement13) {
  _inherits(UnderlineAnnotationElement, _AnnotationElement13);

  function UnderlineAnnotationElement(parameters) {
    _classCallCheck(this, UnderlineAnnotationElement);

    var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
    return _possibleConstructorReturn(this, _getPrototypeOf(UnderlineAnnotationElement).call(this, parameters, isRenderable, true));
  }

  _createClass(UnderlineAnnotationElement, [{
    key: "render",
    value: function render() {
      this.container.className = 'underlineAnnotation';

      if (!this.data.hasPopup) {
        this._createPopup(this.container, null, this.data);
      }

      return this.container;
    }
  }]);

  return UnderlineAnnotationElement;
}(AnnotationElement);

var SquigglyAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement14) {
  _inherits(SquigglyAnnotationElement, _AnnotationElement14);

  function SquigglyAnnotationElement(parameters) {
    _classCallCheck(this, SquigglyAnnotationElement);

    var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
    return _possibleConstructorReturn(this, _getPrototypeOf(SquigglyAnnotationElement).call(this, parameters, isRenderable, true));
  }

  _createClass(SquigglyAnnotationElement, [{
    key: "render",
    value: function render() {
      this.container.className = 'squigglyAnnotation';

      if (!this.data.hasPopup) {
        this._createPopup(this.container, null, this.data);
      }

      return this.container;
    }
  }]);

  return SquigglyAnnotationElement;
}(AnnotationElement);

var StrikeOutAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement15) {
  _inherits(StrikeOutAnnotationElement, _AnnotationElement15);

  function StrikeOutAnnotationElement(parameters) {
    _classCallCheck(this, StrikeOutAnnotationElement);

    var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
    return _possibleConstructorReturn(this, _getPrototypeOf(StrikeOutAnnotationElement).call(this, parameters, isRenderable, true));
  }

  _createClass(StrikeOutAnnotationElement, [{
    key: "render",
    value: function render() {
      this.container.className = 'strikeoutAnnotation';

      if (!this.data.hasPopup) {
        this._createPopup(this.container, null, this.data);
      }

      return this.container;
    }
  }]);

  return StrikeOutAnnotationElement;
}(AnnotationElement);

var StampAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement16) {
  _inherits(StampAnnotationElement, _AnnotationElement16);

  function StampAnnotationElement(parameters) {
    _classCallCheck(this, StampAnnotationElement);

    var isRenderable = !!(parameters.data.hasPopup || parameters.data.title || parameters.data.contents);
    return _possibleConstructorReturn(this, _getPrototypeOf(StampAnnotationElement).call(this, parameters, isRenderable, true));
  }

  _createClass(StampAnnotationElement, [{
    key: "render",
    value: function render() {
      this.container.className = 'stampAnnotation';

      if (!this.data.hasPopup) {
        this._createPopup(this.container, null, this.data);
      }

      return this.container;
    }
  }]);

  return StampAnnotationElement;
}(AnnotationElement);

var FileAttachmentAnnotationElement =
/*#__PURE__*/
function (_AnnotationElement17) {
  _inherits(FileAttachmentAnnotationElement, _AnnotationElement17);

  function FileAttachmentAnnotationElement(parameters) {
    var _this6;

    _classCallCheck(this, FileAttachmentAnnotationElement);

    _this6 = _possibleConstructorReturn(this, _getPrototypeOf(FileAttachmentAnnotationElement).call(this, parameters, true));
    var _this6$data$file = _this6.data.file,
        filename = _this6$data$file.filename,
        content = _this6$data$file.content;
    _this6.filename = (0, _display_utils.getFilenameFromUrl)(filename);
    _this6.content = content;

    if (_this6.linkService.eventBus) {
      _this6.linkService.eventBus.dispatch('fileattachmentannotation', {
        source: _assertThisInitialized(_this6),
        id: (0, _util.stringToPDFString)(filename),
        filename: filename,
        content: content
      });
    }

    return _this6;
  }

  _createClass(FileAttachmentAnnotationElement, [{
    key: "render",
    value: function render() {
      this.container.className = 'fileAttachmentAnnotation';
      var trigger = document.createElement('div');
      trigger.style.height = this.container.style.height;
      trigger.style.width = this.container.style.width;
      trigger.addEventListener('dblclick', this._download.bind(this));

      if (!this.data.hasPopup && (this.data.title || this.data.contents)) {
        this._createPopup(this.container, trigger, this.data);
      }

      this.container.appendChild(trigger);
      return this.container;
    }
  }, {
    key: "_download",
    value: function _download() {
      if (!this.downloadManager) {
        (0, _util.warn)('Download cannot be started due to unavailable download manager');
        return;
      }

      this.downloadManager.downloadData(this.content, this.filename, '');
    }
  }]);

  return FileAttachmentAnnotationElement;
}(AnnotationElement);

var AnnotationLayer =
/*#__PURE__*/
function () {
  function AnnotationLayer() {
    _classCallCheck(this, AnnotationLayer);
  }

  _createClass(AnnotationLayer, null, [{
    key: "render",
    value: function render(parameters) {
      for (var i = 0, ii = parameters.annotations.length; i < ii; i++) {
        var data = parameters.annotations[i];

        if (!data) {
          continue;
        }

        var element = AnnotationElementFactory.create({
          data: data,
          layer: parameters.div,
          page: parameters.page,
          viewport: parameters.viewport,
          linkService: parameters.linkService,
          downloadManager: parameters.downloadManager,
          imageResourcesPath: parameters.imageResourcesPath || '',
          renderInteractiveForms: parameters.renderInteractiveForms || false,
          svgFactory: new _display_utils.DOMSVGFactory()
        });

        if (element.isRenderable) {
          parameters.div.appendChild(element.render());
        }
      }
    }
  }, {
    key: "update",
    value: function update(parameters) {
      for (var i = 0, ii = parameters.annotations.length; i < ii; i++) {
        var data = parameters.annotations[i];
        var element = parameters.div.querySelector('[data-annotation-id="' + data.id + '"]');

        if (element) {
          element.style.transform = 'matrix(' + parameters.viewport.transform.join(',') + ')';
        }
      }

      parameters.div.removeAttribute('hidden');
    }
  }]);

  return AnnotationLayer;
}();

exports.AnnotationLayer = AnnotationLayer;

/***/ }),
/* 164 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.SVGGraphics = void 0;

var _util = __w_pdfjs_require__(1);

var _display_utils = __w_pdfjs_require__(151);

var _is_node = _interopRequireDefault(__w_pdfjs_require__(4));

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }

function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance"); }

function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }

function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }

function _iterableToArrayLimit(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var SVGGraphics = function SVGGraphics() {
  throw new Error('Not implemented: SVGGraphics');
};

exports.SVGGraphics = SVGGraphics;
{
  var opListToTree = function opListToTree(opList) {
    var opTree = [];
    var tmp = [];
    var _iteratorNormalCompletion = true;
    var _didIteratorError = false;
    var _iteratorError = undefined;

    try {
      for (var _iterator = opList[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
        var opListElement = _step.value;

        if (opListElement.fn === 'save') {
          opTree.push({
            'fnId': 92,
            'fn': 'group',
            'items': []
          });
          tmp.push(opTree);
          opTree = opTree[opTree.length - 1].items;
          continue;
        }

        if (opListElement.fn === 'restore') {
          opTree = tmp.pop();
        } else {
          opTree.push(opListElement);
        }
      }
    } catch (err) {
      _didIteratorError = true;
      _iteratorError = err;
    } finally {
      try {
        if (!_iteratorNormalCompletion && _iterator["return"] != null) {
          _iterator["return"]();
        }
      } finally {
        if (_didIteratorError) {
          throw _iteratorError;
        }
      }
    }

    return opTree;
  };

  var pf = function pf(value) {
    if (Number.isInteger(value)) {
      return value.toString();
    }

    var s = value.toFixed(10);
    var i = s.length - 1;

    if (s[i] !== '0') {
      return s;
    }

    do {
      i--;
    } while (s[i] === '0');

    return s.substring(0, s[i] === '.' ? i : i + 1);
  };

  var pm = function pm(m) {
    if (m[4] === 0 && m[5] === 0) {
      if (m[1] === 0 && m[2] === 0) {
        if (m[0] === 1 && m[3] === 1) {
          return '';
        }

        return "scale(".concat(pf(m[0]), " ").concat(pf(m[3]), ")");
      }

      if (m[0] === m[3] && m[1] === -m[2]) {
        var a = Math.acos(m[0]) * 180 / Math.PI;
        return "rotate(".concat(pf(a), ")");
      }
    } else {
      if (m[0] === 1 && m[1] === 0 && m[2] === 0 && m[3] === 1) {
        return "translate(".concat(pf(m[4]), " ").concat(pf(m[5]), ")");
      }
    }

    return "matrix(".concat(pf(m[0]), " ").concat(pf(m[1]), " ").concat(pf(m[2]), " ").concat(pf(m[3]), " ").concat(pf(m[4]), " ") + "".concat(pf(m[5]), ")");
  };

  var SVG_DEFAULTS = {
    fontStyle: 'normal',
    fontWeight: 'normal',
    fillColor: '#000000'
  };
  var XML_NS = 'http://www.w3.org/XML/1998/namespace';
  var XLINK_NS = 'http://www.w3.org/1999/xlink';
  var LINE_CAP_STYLES = ['butt', 'round', 'square'];
  var LINE_JOIN_STYLES = ['miter', 'round', 'bevel'];

  var convertImgDataToPng = function () {
    var PNG_HEADER = new Uint8Array([0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a]);
    var CHUNK_WRAPPER_SIZE = 12;
    var crcTable = new Int32Array(256);

    for (var i = 0; i < 256; i++) {
      var c = i;

      for (var h = 0; h < 8; h++) {
        if (c & 1) {
          c = 0xedB88320 ^ c >> 1 & 0x7fffffff;
        } else {
          c = c >> 1 & 0x7fffffff;
        }
      }

      crcTable[i] = c;
    }

    function crc32(data, start, end) {
      var crc = -1;

      for (var _i = start; _i < end; _i++) {
        var a = (crc ^ data[_i]) & 0xff;
        var b = crcTable[a];
        crc = crc >>> 8 ^ b;
      }

      return crc ^ -1;
    }

    function writePngChunk(type, body, data, offset) {
      var p = offset;
      var len = body.length;
      data[p] = len >> 24 & 0xff;
      data[p + 1] = len >> 16 & 0xff;
      data[p + 2] = len >> 8 & 0xff;
      data[p + 3] = len & 0xff;
      p += 4;
      data[p] = type.charCodeAt(0) & 0xff;
      data[p + 1] = type.charCodeAt(1) & 0xff;
      data[p + 2] = type.charCodeAt(2) & 0xff;
      data[p + 3] = type.charCodeAt(3) & 0xff;
      p += 4;
      data.set(body, p);
      p += body.length;
      var crc = crc32(data, offset + 4, p);
      data[p] = crc >> 24 & 0xff;
      data[p + 1] = crc >> 16 & 0xff;
      data[p + 2] = crc >> 8 & 0xff;
      data[p + 3] = crc & 0xff;
    }

    function adler32(data, start, end) {
      var a = 1;
      var b = 0;

      for (var _i2 = start; _i2 < end; ++_i2) {
        a = (a + (data[_i2] & 0xff)) % 65521;
        b = (b + a) % 65521;
      }

      return b << 16 | a;
    }

    function deflateSync(literals) {
      if (!(0, _is_node["default"])()) {
        return deflateSyncUncompressed(literals);
      }

      try {
        var input;

        if (parseInt(process.versions.node) >= 8) {
          input = literals;
        } else {
          input = new Buffer(literals);
        }

        var output = require('zlib').deflateSync(input, {
          level: 9
        });

        return output instanceof Uint8Array ? output : new Uint8Array(output);
      } catch (e) {
        (0, _util.warn)('Not compressing PNG because zlib.deflateSync is unavailable: ' + e);
      }

      return deflateSyncUncompressed(literals);
    }

    function deflateSyncUncompressed(literals) {
      var len = literals.length;
      var maxBlockLength = 0xFFFF;
      var deflateBlocks = Math.ceil(len / maxBlockLength);
      var idat = new Uint8Array(2 + len + deflateBlocks * 5 + 4);
      var pi = 0;
      idat[pi++] = 0x78;
      idat[pi++] = 0x9c;
      var pos = 0;

      while (len > maxBlockLength) {
        idat[pi++] = 0x00;
        idat[pi++] = 0xff;
        idat[pi++] = 0xff;
        idat[pi++] = 0x00;
        idat[pi++] = 0x00;
        idat.set(literals.subarray(pos, pos + maxBlockLength), pi);
        pi += maxBlockLength;
        pos += maxBlockLength;
        len -= maxBlockLength;
      }

      idat[pi++] = 0x01;
      idat[pi++] = len & 0xff;
      idat[pi++] = len >> 8 & 0xff;
      idat[pi++] = ~len & 0xffff & 0xff;
      idat[pi++] = (~len & 0xffff) >> 8 & 0xff;
      idat.set(literals.subarray(pos), pi);
      pi += literals.length - pos;
      var adler = adler32(literals, 0, literals.length);
      idat[pi++] = adler >> 24 & 0xff;
      idat[pi++] = adler >> 16 & 0xff;
      idat[pi++] = adler >> 8 & 0xff;
      idat[pi++] = adler & 0xff;
      return idat;
    }

    function encode(imgData, kind, forceDataSchema, isMask) {
      var width = imgData.width;
      var height = imgData.height;
      var bitDepth, colorType, lineSize;
      var bytes = imgData.data;

      switch (kind) {
        case _util.ImageKind.GRAYSCALE_1BPP:
          colorType = 0;
          bitDepth = 1;
          lineSize = width + 7 >> 3;
          break;

        case _util.ImageKind.RGB_24BPP:
          colorType = 2;
          bitDepth = 8;
          lineSize = width * 3;
          break;

        case _util.ImageKind.RGBA_32BPP:
          colorType = 6;
          bitDepth = 8;
          lineSize = width * 4;
          break;

        default:
          throw new Error('invalid format');
      }

      var literals = new Uint8Array((1 + lineSize) * height);
      var offsetLiterals = 0,
          offsetBytes = 0;

      for (var y = 0; y < height; ++y) {
        literals[offsetLiterals++] = 0;
        literals.set(bytes.subarray(offsetBytes, offsetBytes + lineSize), offsetLiterals);
        offsetBytes += lineSize;
        offsetLiterals += lineSize;
      }

      if (kind === _util.ImageKind.GRAYSCALE_1BPP && isMask) {
        offsetLiterals = 0;

        for (var _y = 0; _y < height; _y++) {
          offsetLiterals++;

          for (var _i3 = 0; _i3 < lineSize; _i3++) {
            literals[offsetLiterals++] ^= 0xFF;
          }
        }
      }

      var ihdr = new Uint8Array([width >> 24 & 0xff, width >> 16 & 0xff, width >> 8 & 0xff, width & 0xff, height >> 24 & 0xff, height >> 16 & 0xff, height >> 8 & 0xff, height & 0xff, bitDepth, colorType, 0x00, 0x00, 0x00]);
      var idat = deflateSync(literals);
      var pngLength = PNG_HEADER.length + CHUNK_WRAPPER_SIZE * 3 + ihdr.length + idat.length;
      var data = new Uint8Array(pngLength);
      var offset = 0;
      data.set(PNG_HEADER, offset);
      offset += PNG_HEADER.length;
      writePngChunk('IHDR', ihdr, data, offset);
      offset += CHUNK_WRAPPER_SIZE + ihdr.length;
      writePngChunk('IDATA', idat, data, offset);
      offset += CHUNK_WRAPPER_SIZE + idat.length;
      writePngChunk('IEND', new Uint8Array(0), data, offset);
      return (0, _util.createObjectURL)(data, 'image/png', forceDataSchema);
    }

    return function convertImgDataToPng(imgData, forceDataSchema, isMask) {
      var kind = imgData.kind === undefined ? _util.ImageKind.GRAYSCALE_1BPP : imgData.kind;
      return encode(imgData, kind, forceDataSchema, isMask);
    };
  }();

  var SVGExtraState =
  /*#__PURE__*/
  function () {
    function SVGExtraState() {
      _classCallCheck(this, SVGExtraState);

      this.fontSizeScale = 1;
      this.fontWeight = SVG_DEFAULTS.fontWeight;
      this.fontSize = 0;
      this.textMatrix = _util.IDENTITY_MATRIX;
      this.fontMatrix = _util.FONT_IDENTITY_MATRIX;
      this.leading = 0;
      this.textRenderingMode = _util.TextRenderingMode.FILL;
      this.textMatrixScale = 1;
      this.x = 0;
      this.y = 0;
      this.lineX = 0;
      this.lineY = 0;
      this.charSpacing = 0;
      this.wordSpacing = 0;
      this.textHScale = 1;
      this.textRise = 0;
      this.fillColor = SVG_DEFAULTS.fillColor;
      this.strokeColor = '#000000';
      this.fillAlpha = 1;
      this.strokeAlpha = 1;
      this.lineWidth = 1;
      this.lineJoin = '';
      this.lineCap = '';
      this.miterLimit = 0;
      this.dashArray = [];
      this.dashPhase = 0;
      this.dependencies = [];
      this.activeClipUrl = null;
      this.clipGroup = null;
      this.maskId = '';
    }

    _createClass(SVGExtraState, [{
      key: "clone",
      value: function clone() {
        return Object.create(this);
      }
    }, {
      key: "setCurrentPoint",
      value: function setCurrentPoint(x, y) {
        this.x = x;
        this.y = y;
      }
    }]);

    return SVGExtraState;
  }();

  var clipCount = 0;
  var maskCount = 0;
  var shadingCount = 0;

  exports.SVGGraphics = SVGGraphics =
  /*#__PURE__*/
  function () {
    function SVGGraphics(commonObjs, objs, forceDataSchema) {
      _classCallCheck(this, SVGGraphics);

      this.svgFactory = new _display_utils.DOMSVGFactory();
      this.current = new SVGExtraState();
      this.transformMatrix = _util.IDENTITY_MATRIX;
      this.transformStack = [];
      this.extraStack = [];
      this.commonObjs = commonObjs;
      this.objs = objs;
      this.pendingClip = null;
      this.pendingEOFill = false;
      this.embedFonts = false;
      this.embeddedFonts = Object.create(null);
      this.cssStyle = null;
      this.forceDataSchema = !!forceDataSchema;
      this._operatorIdMapping = [];

      for (var op in _util.OPS) {
        this._operatorIdMapping[_util.OPS[op]] = op;
      }
    }

    _createClass(SVGGraphics, [{
      key: "save",
      value: function save() {
        this.transformStack.push(this.transformMatrix);
        var old = this.current;
        this.extraStack.push(old);
        this.current = old.clone();
      }
    }, {
      key: "restore",
      value: function restore() {
        this.transformMatrix = this.transformStack.pop();
        this.current = this.extraStack.pop();
        this.pendingClip = null;
        this.tgrp = null;
      }
    }, {
      key: "group",
      value: function group(items) {
        this.save();
        this.executeOpTree(items);
        this.restore();
      }
    }, {
      key: "loadDependencies",
      value: function loadDependencies(operatorList) {
        var _this = this;

        var fnArray = operatorList.fnArray;
        var argsArray = operatorList.argsArray;

        for (var i = 0, ii = fnArray.length; i < ii; i++) {
          if (fnArray[i] !== _util.OPS.dependency) {
            continue;
          }

          var _iteratorNormalCompletion2 = true;
          var _didIteratorError2 = false;
          var _iteratorError2 = undefined;

          try {
            var _loop = function _loop() {
              var obj = _step2.value;
              var objsPool = obj.startsWith('g_') ? _this.commonObjs : _this.objs;
              var promise = new Promise(function (resolve) {
                objsPool.get(obj, resolve);
              });

              _this.current.dependencies.push(promise);
            };

            for (var _iterator2 = argsArray[i][Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
              _loop();
            }
          } catch (err) {
            _didIteratorError2 = true;
            _iteratorError2 = err;
          } finally {
            try {
              if (!_iteratorNormalCompletion2 && _iterator2["return"] != null) {
                _iterator2["return"]();
              }
            } finally {
              if (_didIteratorError2) {
                throw _iteratorError2;
              }
            }
          }
        }

        return Promise.all(this.current.dependencies);
      }
    }, {
      key: "transform",
      value: function transform(a, b, c, d, e, f) {
        var transformMatrix = [a, b, c, d, e, f];
        this.transformMatrix = _util.Util.transform(this.transformMatrix, transformMatrix);
        this.tgrp = null;
      }
    }, {
      key: "getSVG",
      value: function getSVG(operatorList, viewport) {
        var _this2 = this;

        this.viewport = viewport;

        var svgElement = this._initialize(viewport);

        return this.loadDependencies(operatorList).then(function () {
          _this2.transformMatrix = _util.IDENTITY_MATRIX;

          _this2.executeOpTree(_this2.convertOpList(operatorList));

          return svgElement;
        });
      }
    }, {
      key: "convertOpList",
      value: function convertOpList(operatorList) {
        var operatorIdMapping = this._operatorIdMapping;
        var argsArray = operatorList.argsArray;
        var fnArray = operatorList.fnArray;
        var opList = [];

        for (var i = 0, ii = fnArray.length; i < ii; i++) {
          var fnId = fnArray[i];
          opList.push({
            'fnId': fnId,
            'fn': operatorIdMapping[fnId],
            'args': argsArray[i]
          });
        }

        return opListToTree(opList);
      }
    }, {
      key: "executeOpTree",
      value: function executeOpTree(opTree) {
        var _iteratorNormalCompletion3 = true;
        var _didIteratorError3 = false;
        var _iteratorError3 = undefined;

        try {
          for (var _iterator3 = opTree[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
            var opTreeElement = _step3.value;
            var fn = opTreeElement.fn;
            var fnId = opTreeElement.fnId;
            var args = opTreeElement.args;

            switch (fnId | 0) {
              case _util.OPS.beginText:
                this.beginText();
                break;

              case _util.OPS.dependency:
                break;

              case _util.OPS.setLeading:
                this.setLeading(args);
                break;

              case _util.OPS.setLeadingMoveText:
                this.setLeadingMoveText(args[0], args[1]);
                break;

              case _util.OPS.setFont:
                this.setFont(args);
                break;

              case _util.OPS.showText:
                this.showText(args[0]);
                break;

              case _util.OPS.showSpacedText:
                this.showText(args[0]);
                break;

              case _util.OPS.endText:
                this.endText();
                break;

              case _util.OPS.moveText:
                this.moveText(args[0], args[1]);
                break;

              case _util.OPS.setCharSpacing:
                this.setCharSpacing(args[0]);
                break;

              case _util.OPS.setWordSpacing:
                this.setWordSpacing(args[0]);
                break;

              case _util.OPS.setHScale:
                this.setHScale(args[0]);
                break;

              case _util.OPS.setTextMatrix:
                this.setTextMatrix(args[0], args[1], args[2], args[3], args[4], args[5]);
                break;

              case _util.OPS.setTextRise:
                this.setTextRise(args[0]);
                break;

              case _util.OPS.setTextRenderingMode:
                this.setTextRenderingMode(args[0]);
                break;

              case _util.OPS.setLineWidth:
                this.setLineWidth(args[0]);
                break;

              case _util.OPS.setLineJoin:
                this.setLineJoin(args[0]);
                break;

              case _util.OPS.setLineCap:
                this.setLineCap(args[0]);
                break;

              case _util.OPS.setMiterLimit:
                this.setMiterLimit(args[0]);
                break;

              case _util.OPS.setFillRGBColor:
                this.setFillRGBColor(args[0], args[1], args[2]);
                break;

              case _util.OPS.setStrokeRGBColor:
                this.setStrokeRGBColor(args[0], args[1], args[2]);
                break;

              case _util.OPS.setStrokeColorN:
                this.setStrokeColorN(args);
                break;

              case _util.OPS.setFillColorN:
                this.setFillColorN(args);
                break;

              case _util.OPS.shadingFill:
                this.shadingFill(args[0]);
                break;

              case _util.OPS.setDash:
                this.setDash(args[0], args[1]);
                break;

              case _util.OPS.setRenderingIntent:
                this.setRenderingIntent(args[0]);
                break;

              case _util.OPS.setFlatness:
                this.setFlatness(args[0]);
                break;

              case _util.OPS.setGState:
                this.setGState(args[0]);
                break;

              case _util.OPS.fill:
                this.fill();
                break;

              case _util.OPS.eoFill:
                this.eoFill();
                break;

              case _util.OPS.stroke:
                this.stroke();
                break;

              case _util.OPS.fillStroke:
                this.fillStroke();
                break;

              case _util.OPS.eoFillStroke:
                this.eoFillStroke();
                break;

              case _util.OPS.clip:
                this.clip('nonzero');
                break;

              case _util.OPS.eoClip:
                this.clip('evenodd');
                break;

              case _util.OPS.paintSolidColorImageMask:
                this.paintSolidColorImageMask();
                break;

              case _util.OPS.paintJpegXObject:
                this.paintJpegXObject(args[0], args[1], args[2]);
                break;

              case _util.OPS.paintImageXObject:
                this.paintImageXObject(args[0]);
                break;

              case _util.OPS.paintInlineImageXObject:
                this.paintInlineImageXObject(args[0]);
                break;

              case _util.OPS.paintImageMaskXObject:
                this.paintImageMaskXObject(args[0]);
                break;

              case _util.OPS.paintFormXObjectBegin:
                this.paintFormXObjectBegin(args[0], args[1]);
                break;

              case _util.OPS.paintFormXObjectEnd:
                this.paintFormXObjectEnd();
                break;

              case _util.OPS.closePath:
                this.closePath();
                break;

              case _util.OPS.closeStroke:
                this.closeStroke();
                break;

              case _util.OPS.closeFillStroke:
                this.closeFillStroke();
                break;

              case _util.OPS.closeEOFillStroke:
                this.closeEOFillStroke();
                break;

              case _util.OPS.nextLine:
                this.nextLine();
                break;

              case _util.OPS.transform:
                this.transform(args[0], args[1], args[2], args[3], args[4], args[5]);
                break;

              case _util.OPS.constructPath:
                this.constructPath(args[0], args[1]);
                break;

              case _util.OPS.endPath:
                this.endPath();
                break;

              case 92:
                this.group(opTreeElement.items);
                break;

              default:
                (0, _util.warn)("Unimplemented operator ".concat(fn));
                break;
            }
          }
        } catch (err) {
          _didIteratorError3 = true;
          _iteratorError3 = err;
        } finally {
          try {
            if (!_iteratorNormalCompletion3 && _iterator3["return"] != null) {
              _iterator3["return"]();
            }
          } finally {
            if (_didIteratorError3) {
              throw _iteratorError3;
            }
          }
        }
      }
    }, {
      key: "setWordSpacing",
      value: function setWordSpacing(wordSpacing) {
        this.current.wordSpacing = wordSpacing;
      }
    }, {
      key: "setCharSpacing",
      value: function setCharSpacing(charSpacing) {
        this.current.charSpacing = charSpacing;
      }
    }, {
      key: "nextLine",
      value: function nextLine() {
        this.moveText(0, this.current.leading);
      }
    }, {
      key: "setTextMatrix",
      value: function setTextMatrix(a, b, c, d, e, f) {
        var current = this.current;
        current.textMatrix = current.lineMatrix = [a, b, c, d, e, f];
        current.textMatrixScale = Math.sqrt(a * a + b * b);
        current.x = current.lineX = 0;
        current.y = current.lineY = 0;
        current.xcoords = [];
        current.tspan = this.svgFactory.createElement('svg:tspan');
        current.tspan.setAttributeNS(null, 'font-family', current.fontFamily);
        current.tspan.setAttributeNS(null, 'font-size', "".concat(pf(current.fontSize), "px"));
        current.tspan.setAttributeNS(null, 'y', pf(-current.y));
        current.txtElement = this.svgFactory.createElement('svg:text');
        current.txtElement.appendChild(current.tspan);
      }
    }, {
      key: "beginText",
      value: function beginText() {
        var current = this.current;
        current.x = current.lineX = 0;
        current.y = current.lineY = 0;
        current.textMatrix = _util.IDENTITY_MATRIX;
        current.lineMatrix = _util.IDENTITY_MATRIX;
        current.textMatrixScale = 1;
        current.tspan = this.svgFactory.createElement('svg:tspan');
        current.txtElement = this.svgFactory.createElement('svg:text');
        current.txtgrp = this.svgFactory.createElement('svg:g');
        current.xcoords = [];
      }
    }, {
      key: "moveText",
      value: function moveText(x, y) {
        var current = this.current;
        current.x = current.lineX += x;
        current.y = current.lineY += y;
        current.xcoords = [];
        current.tspan = this.svgFactory.createElement('svg:tspan');
        current.tspan.setAttributeNS(null, 'font-family', current.fontFamily);
        current.tspan.setAttributeNS(null, 'font-size', "".concat(pf(current.fontSize), "px"));
        current.tspan.setAttributeNS(null, 'y', pf(-current.y));
      }
    }, {
      key: "showText",
      value: function showText(glyphs) {
        var current = this.current;
        var font = current.font;
        var fontSize = current.fontSize;

        if (fontSize === 0) {
          return;
        }

        var charSpacing = current.charSpacing;
        var wordSpacing = current.wordSpacing;
        var fontDirection = current.fontDirection;
        var textHScale = current.textHScale * fontDirection;
        var vertical = font.vertical;
        var widthAdvanceScale = fontSize * current.fontMatrix[0];
        var x = 0;
        var _iteratorNormalCompletion4 = true;
        var _didIteratorError4 = false;
        var _iteratorError4 = undefined;

        try {
          for (var _iterator4 = glyphs[Symbol.iterator](), _step4; !(_iteratorNormalCompletion4 = (_step4 = _iterator4.next()).done); _iteratorNormalCompletion4 = true) {
            var glyph = _step4.value;

            if (glyph === null) {
              x += fontDirection * wordSpacing;
              continue;
            } else if ((0, _util.isNum)(glyph)) {
              x += -glyph * fontSize * 0.001;
              continue;
            }

            var width = glyph.width;
            var character = glyph.fontChar;
            var spacing = (glyph.isSpace ? wordSpacing : 0) + charSpacing;
            var charWidth = width * widthAdvanceScale + spacing * fontDirection;

            if (!glyph.isInFont && !font.missingFile) {
              x += charWidth;
              continue;
            }

            current.xcoords.push(current.x + x * textHScale);
            current.tspan.textContent += character;
            x += charWidth;
          }
        } catch (err) {
          _didIteratorError4 = true;
          _iteratorError4 = err;
        } finally {
          try {
            if (!_iteratorNormalCompletion4 && _iterator4["return"] != null) {
              _iterator4["return"]();
            }
          } finally {
            if (_didIteratorError4) {
              throw _iteratorError4;
            }
          }
        }

        if (vertical) {
          current.y -= x * textHScale;
        } else {
          current.x += x * textHScale;
        }

        current.tspan.setAttributeNS(null, 'x', current.xcoords.map(pf).join(' '));
        current.tspan.setAttributeNS(null, 'y', pf(-current.y));
        current.tspan.setAttributeNS(null, 'font-family', current.fontFamily);
        current.tspan.setAttributeNS(null, 'font-size', "".concat(pf(current.fontSize), "px"));

        if (current.fontStyle !== SVG_DEFAULTS.fontStyle) {
          current.tspan.setAttributeNS(null, 'font-style', current.fontStyle);
        }

        if (current.fontWeight !== SVG_DEFAULTS.fontWeight) {
          current.tspan.setAttributeNS(null, 'font-weight', current.fontWeight);
        }

        var fillStrokeMode = current.textRenderingMode & _util.TextRenderingMode.FILL_STROKE_MASK;

        if (fillStrokeMode === _util.TextRenderingMode.FILL || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
          if (current.fillColor !== SVG_DEFAULTS.fillColor) {
            current.tspan.setAttributeNS(null, 'fill', current.fillColor);
          }

          if (current.fillAlpha < 1) {
            current.tspan.setAttributeNS(null, 'fill-opacity', current.fillAlpha);
          }
        } else if (current.textRenderingMode === _util.TextRenderingMode.ADD_TO_PATH) {
          current.tspan.setAttributeNS(null, 'fill', 'transparent');
        } else {
          current.tspan.setAttributeNS(null, 'fill', 'none');
        }

        if (fillStrokeMode === _util.TextRenderingMode.STROKE || fillStrokeMode === _util.TextRenderingMode.FILL_STROKE) {
          var lineWidthScale = 1 / (current.textMatrixScale || 1);

          this._setStrokeAttributes(current.tspan, lineWidthScale);
        }

        var textMatrix = current.textMatrix;

        if (current.textRise !== 0) {
          textMatrix = textMatrix.slice();
          textMatrix[5] += current.textRise;
        }

        current.txtElement.setAttributeNS(null, 'transform', "".concat(pm(textMatrix), " scale(1, -1)"));
        current.txtElement.setAttributeNS(XML_NS, 'xml:space', 'preserve');
        current.txtElement.appendChild(current.tspan);
        current.txtgrp.appendChild(current.txtElement);

        this._ensureTransformGroup().appendChild(current.txtElement);
      }
    }, {
      key: "setLeadingMoveText",
      value: function setLeadingMoveText(x, y) {
        this.setLeading(-y);
        this.moveText(x, y);
      }
    }, {
      key: "addFontStyle",
      value: function addFontStyle(fontObj) {
        if (!this.cssStyle) {
          this.cssStyle = this.svgFactory.createElement('svg:style');
          this.cssStyle.setAttributeNS(null, 'type', 'text/css');
          this.defs.appendChild(this.cssStyle);
        }

        var url = (0, _util.createObjectURL)(fontObj.data, fontObj.mimetype, this.forceDataSchema);
        this.cssStyle.textContent += "@font-face { font-family: \"".concat(fontObj.loadedName, "\";") + " src: url(".concat(url, "); }\n");
      }
    }, {
      key: "setFont",
      value: function setFont(details) {
        var current = this.current;
        var fontObj = this.commonObjs.get(details[0]);
        var size = details[1];
        current.font = fontObj;

        if (this.embedFonts && fontObj.data && !this.embeddedFonts[fontObj.loadedName]) {
          this.addFontStyle(fontObj);
          this.embeddedFonts[fontObj.loadedName] = fontObj;
        }

        current.fontMatrix = fontObj.fontMatrix ? fontObj.fontMatrix : _util.FONT_IDENTITY_MATRIX;
        var bold = fontObj.black ? fontObj.bold ? 'bolder' : 'bold' : fontObj.bold ? 'bold' : 'normal';
        var italic = fontObj.italic ? 'italic' : 'normal';

        if (size < 0) {
          size = -size;
          current.fontDirection = -1;
        } else {
          current.fontDirection = 1;
        }

        current.fontSize = size;
        current.fontFamily = fontObj.loadedName;
        current.fontWeight = bold;
        current.fontStyle = italic;
        current.tspan = this.svgFactory.createElement('svg:tspan');
        current.tspan.setAttributeNS(null, 'y', pf(-current.y));
        current.xcoords = [];
      }
    }, {
      key: "endText",
      value: function endText() {
        var current = this.current;

        if (current.textRenderingMode & _util.TextRenderingMode.ADD_TO_PATH_FLAG && current.txtElement && current.txtElement.hasChildNodes()) {
          current.element = current.txtElement;
          this.clip('nonzero');
          this.endPath();
        }
      }
    }, {
      key: "setLineWidth",
      value: function setLineWidth(width) {
        if (width > 0) {
          this.current.lineWidth = width;
        }
      }
    }, {
      key: "setLineCap",
      value: function setLineCap(style) {
        this.current.lineCap = LINE_CAP_STYLES[style];
      }
    }, {
      key: "setLineJoin",
      value: function setLineJoin(style) {
        this.current.lineJoin = LINE_JOIN_STYLES[style];
      }
    }, {
      key: "setMiterLimit",
      value: function setMiterLimit(limit) {
        this.current.miterLimit = limit;
      }
    }, {
      key: "setStrokeAlpha",
      value: function setStrokeAlpha(strokeAlpha) {
        this.current.strokeAlpha = strokeAlpha;
      }
    }, {
      key: "setStrokeRGBColor",
      value: function setStrokeRGBColor(r, g, b) {
        this.current.strokeColor = _util.Util.makeCssRgb(r, g, b);
      }
    }, {
      key: "setFillAlpha",
      value: function setFillAlpha(fillAlpha) {
        this.current.fillAlpha = fillAlpha;
      }
    }, {
      key: "setFillRGBColor",
      value: function setFillRGBColor(r, g, b) {
        this.current.fillColor = _util.Util.makeCssRgb(r, g, b);
        this.current.tspan = this.svgFactory.createElement('svg:tspan');
        this.current.xcoords = [];
      }
    }, {
      key: "setStrokeColorN",
      value: function setStrokeColorN(args) {
        this.current.strokeColor = this._makeColorN_Pattern(args);
      }
    }, {
      key: "setFillColorN",
      value: function setFillColorN(args) {
        this.current.fillColor = this._makeColorN_Pattern(args);
      }
    }, {
      key: "shadingFill",
      value: function shadingFill(args) {
        var width = this.viewport.width;
        var height = this.viewport.height;

        var inv = _util.Util.inverseTransform(this.transformMatrix);

        var bl = _util.Util.applyTransform([0, 0], inv);

        var br = _util.Util.applyTransform([0, height], inv);

        var ul = _util.Util.applyTransform([width, 0], inv);

        var ur = _util.Util.applyTransform([width, height], inv);

        var x0 = Math.min(bl[0], br[0], ul[0], ur[0]);
        var y0 = Math.min(bl[1], br[1], ul[1], ur[1]);
        var x1 = Math.max(bl[0], br[0], ul[0], ur[0]);
        var y1 = Math.max(bl[1], br[1], ul[1], ur[1]);
        var rect = this.svgFactory.createElement('svg:rect');
        rect.setAttributeNS(null, 'x', x0);
        rect.setAttributeNS(null, 'y', y0);
        rect.setAttributeNS(null, 'width', x1 - x0);
        rect.setAttributeNS(null, 'height', y1 - y0);
        rect.setAttributeNS(null, 'fill', this._makeShadingPattern(args));

        this._ensureTransformGroup().appendChild(rect);
      }
    }, {
      key: "_makeColorN_Pattern",
      value: function _makeColorN_Pattern(args) {
        if (args[0] === 'TilingPattern') {
          return this._makeTilingPattern(args);
        }

        return this._makeShadingPattern(args);
      }
    }, {
      key: "_makeTilingPattern",
      value: function _makeTilingPattern(args) {
        var color = args[1];
        var operatorList = args[2];
        var matrix = args[3] || _util.IDENTITY_MATRIX;

        var _args$ = _slicedToArray(args[4], 4),
            x0 = _args$[0],
            y0 = _args$[1],
            x1 = _args$[2],
            y1 = _args$[3];

        var xstep = args[5];
        var ystep = args[6];
        var paintType = args[7];
        var tilingId = "shading".concat(shadingCount++);

        var _Util$applyTransform = _util.Util.applyTransform([x0, y0], matrix),
            _Util$applyTransform2 = _slicedToArray(_Util$applyTransform, 2),
            tx0 = _Util$applyTransform2[0],
            ty0 = _Util$applyTransform2[1];

        var _Util$applyTransform3 = _util.Util.applyTransform([x1, y1], matrix),
            _Util$applyTransform4 = _slicedToArray(_Util$applyTransform3, 2),
            tx1 = _Util$applyTransform4[0],
            ty1 = _Util$applyTransform4[1];

        var _Util$singularValueDe = _util.Util.singularValueDecompose2dScale(matrix),
            _Util$singularValueDe2 = _slicedToArray(_Util$singularValueDe, 2),
            xscale = _Util$singularValueDe2[0],
            yscale = _Util$singularValueDe2[1];

        var txstep = xstep * xscale;
        var tystep = ystep * yscale;
        var tiling = this.svgFactory.createElement('svg:pattern');
        tiling.setAttributeNS(null, 'id', tilingId);
        tiling.setAttributeNS(null, 'patternUnits', 'userSpaceOnUse');
        tiling.setAttributeNS(null, 'width', txstep);
        tiling.setAttributeNS(null, 'height', tystep);
        tiling.setAttributeNS(null, 'x', "".concat(tx0));
        tiling.setAttributeNS(null, 'y', "".concat(ty0));
        var svg = this.svg;
        var transformMatrix = this.transformMatrix;
        var fillColor = this.current.fillColor;
        var strokeColor = this.current.strokeColor;
        var bbox = this.svgFactory.create(tx1 - tx0, ty1 - ty0);
        this.svg = bbox;
        this.transformMatrix = matrix;

        if (paintType === 2) {
          var cssColor = _util.Util.makeCssRgb.apply(_util.Util, _toConsumableArray(color));

          this.current.fillColor = cssColor;
          this.current.strokeColor = cssColor;
        }

        this.executeOpTree(this.convertOpList(operatorList));
        this.svg = svg;
        this.transformMatrix = transformMatrix;
        this.current.fillColor = fillColor;
        this.current.strokeColor = strokeColor;
        tiling.appendChild(bbox.childNodes[0]);
        this.defs.appendChild(tiling);
        return "url(#".concat(tilingId, ")");
      }
    }, {
      key: "_makeShadingPattern",
      value: function _makeShadingPattern(args) {
        switch (args[0]) {
          case 'RadialAxial':
            var shadingId = "shading".concat(shadingCount++);
            var colorStops = args[2];
            var gradient;

            switch (args[1]) {
              case 'axial':
                var point0 = args[3];
                var point1 = args[4];
                gradient = this.svgFactory.createElement('svg:linearGradient');
                gradient.setAttributeNS(null, 'id', shadingId);
                gradient.setAttributeNS(null, 'gradientUnits', 'userSpaceOnUse');
                gradient.setAttributeNS(null, 'x1', point0[0]);
                gradient.setAttributeNS(null, 'y1', point0[1]);
                gradient.setAttributeNS(null, 'x2', point1[0]);
                gradient.setAttributeNS(null, 'y2', point1[1]);
                break;

              case 'radial':
                var focalPoint = args[3];
                var circlePoint = args[4];
                var focalRadius = args[5];
                var circleRadius = args[6];
                gradient = this.svgFactory.createElement('svg:radialGradient');
                gradient.setAttributeNS(null, 'id', shadingId);
                gradient.setAttributeNS(null, 'gradientUnits', 'userSpaceOnUse');
                gradient.setAttributeNS(null, 'cx', circlePoint[0]);
                gradient.setAttributeNS(null, 'cy', circlePoint[1]);
                gradient.setAttributeNS(null, 'r', circleRadius);
                gradient.setAttributeNS(null, 'fx', focalPoint[0]);
                gradient.setAttributeNS(null, 'fy', focalPoint[1]);
                gradient.setAttributeNS(null, 'fr', focalRadius);
                break;

              default:
                throw new Error("Unknown RadialAxial type: ".concat(args[1]));
            }

            var _iteratorNormalCompletion5 = true;
            var _didIteratorError5 = false;
            var _iteratorError5 = undefined;

            try {
              for (var _iterator5 = colorStops[Symbol.iterator](), _step5; !(_iteratorNormalCompletion5 = (_step5 = _iterator5.next()).done); _iteratorNormalCompletion5 = true) {
                var colorStop = _step5.value;
                var stop = this.svgFactory.createElement('svg:stop');
                stop.setAttributeNS(null, 'offset', colorStop[0]);
                stop.setAttributeNS(null, 'stop-color', colorStop[1]);
                gradient.appendChild(stop);
              }
            } catch (err) {
              _didIteratorError5 = true;
              _iteratorError5 = err;
            } finally {
              try {
                if (!_iteratorNormalCompletion5 && _iterator5["return"] != null) {
                  _iterator5["return"]();
                }
              } finally {
                if (_didIteratorError5) {
                  throw _iteratorError5;
                }
              }
            }

            this.defs.appendChild(gradient);
            return "url(#".concat(shadingId, ")");

          case 'Mesh':
            (0, _util.warn)('Unimplemented pattern Mesh');
            return null;

          case 'Dummy':
            return 'hotpink';

          default:
            throw new Error("Unknown IR type: ".concat(args[0]));
        }
      }
    }, {
      key: "setDash",
      value: function setDash(dashArray, dashPhase) {
        this.current.dashArray = dashArray;
        this.current.dashPhase = dashPhase;
      }
    }, {
      key: "constructPath",
      value: function constructPath(ops, args) {
        var current = this.current;
        var x = current.x,
            y = current.y;
        var d = [];
        var j = 0;
        var _iteratorNormalCompletion6 = true;
        var _didIteratorError6 = false;
        var _iteratorError6 = undefined;

        try {
          for (var _iterator6 = ops[Symbol.iterator](), _step6; !(_iteratorNormalCompletion6 = (_step6 = _iterator6.next()).done); _iteratorNormalCompletion6 = true) {
            var op = _step6.value;

            switch (op | 0) {
              case _util.OPS.rectangle:
                x = args[j++];
                y = args[j++];
                var width = args[j++];
                var height = args[j++];
                var xw = x + width;
                var yh = y + height;
                d.push('M', pf(x), pf(y), 'L', pf(xw), pf(y), 'L', pf(xw), pf(yh), 'L', pf(x), pf(yh), 'Z');
                break;

              case _util.OPS.moveTo:
                x = args[j++];
                y = args[j++];
                d.push('M', pf(x), pf(y));
                break;

              case _util.OPS.lineTo:
                x = args[j++];
                y = args[j++];
                d.push('L', pf(x), pf(y));
                break;

              case _util.OPS.curveTo:
                x = args[j + 4];
                y = args[j + 5];
                d.push('C', pf(args[j]), pf(args[j + 1]), pf(args[j + 2]), pf(args[j + 3]), pf(x), pf(y));
                j += 6;
                break;

              case _util.OPS.curveTo2:
                x = args[j + 2];
                y = args[j + 3];
                d.push('C', pf(x), pf(y), pf(args[j]), pf(args[j + 1]), pf(args[j + 2]), pf(args[j + 3]));
                j += 4;
                break;

              case _util.OPS.curveTo3:
                x = args[j + 2];
                y = args[j + 3];
                d.push('C', pf(args[j]), pf(args[j + 1]), pf(x), pf(y), pf(x), pf(y));
                j += 4;
                break;

              case _util.OPS.closePath:
                d.push('Z');
                break;
            }
          }
        } catch (err) {
          _didIteratorError6 = true;
          _iteratorError6 = err;
        } finally {
          try {
            if (!_iteratorNormalCompletion6 && _iterator6["return"] != null) {
              _iterator6["return"]();
            }
          } finally {
            if (_didIteratorError6) {
              throw _iteratorError6;
            }
          }
        }

        d = d.join(' ');

        if (current.path && ops.length > 0 && ops[0] !== _util.OPS.rectangle && ops[0] !== _util.OPS.moveTo) {
          d = current.path.getAttributeNS(null, 'd') + d;
        } else {
          current.path = this.svgFactory.createElement('svg:path');

          this._ensureTransformGroup().appendChild(current.path);
        }

        current.path.setAttributeNS(null, 'd', d);
        current.path.setAttributeNS(null, 'fill', 'none');
        current.element = current.path;
        current.setCurrentPoint(x, y);
      }
    }, {
      key: "endPath",
      value: function endPath() {
        var current = this.current;
        current.path = null;

        if (!this.pendingClip) {
          return;
        }

        if (!current.element) {
          this.pendingClip = null;
          return;
        }

        var clipId = "clippath".concat(clipCount++);
        var clipPath = this.svgFactory.createElement('svg:clipPath');
        clipPath.setAttributeNS(null, 'id', clipId);
        clipPath.setAttributeNS(null, 'transform', pm(this.transformMatrix));
        var clipElement = current.element.cloneNode(true);

        if (this.pendingClip === 'evenodd') {
          clipElement.setAttributeNS(null, 'clip-rule', 'evenodd');
        } else {
          clipElement.setAttributeNS(null, 'clip-rule', 'nonzero');
        }

        this.pendingClip = null;
        clipPath.appendChild(clipElement);
        this.defs.appendChild(clipPath);

        if (current.activeClipUrl) {
          current.clipGroup = null;
          this.extraStack.forEach(function (prev) {
            prev.clipGroup = null;
          });
          clipPath.setAttributeNS(null, 'clip-path', current.activeClipUrl);
        }

        current.activeClipUrl = "url(#".concat(clipId, ")");
        this.tgrp = null;
      }
    }, {
      key: "clip",
      value: function clip(type) {
        this.pendingClip = type;
      }
    }, {
      key: "closePath",
      value: function closePath() {
        var current = this.current;

        if (current.path) {
          var d = "".concat(current.path.getAttributeNS(null, 'd'), "Z");
          current.path.setAttributeNS(null, 'd', d);
        }
      }
    }, {
      key: "setLeading",
      value: function setLeading(leading) {
        this.current.leading = -leading;
      }
    }, {
      key: "setTextRise",
      value: function setTextRise(textRise) {
        this.current.textRise = textRise;
      }
    }, {
      key: "setTextRenderingMode",
      value: function setTextRenderingMode(textRenderingMode) {
        this.current.textRenderingMode = textRenderingMode;
      }
    }, {
      key: "setHScale",
      value: function setHScale(scale) {
        this.current.textHScale = scale / 100;
      }
    }, {
      key: "setRenderingIntent",
      value: function setRenderingIntent(intent) {}
    }, {
      key: "setFlatness",
      value: function setFlatness(flatness) {}
    }, {
      key: "setGState",
      value: function setGState(states) {
        var _iteratorNormalCompletion7 = true;
        var _didIteratorError7 = false;
        var _iteratorError7 = undefined;

        try {
          for (var _iterator7 = states[Symbol.iterator](), _step7; !(_iteratorNormalCompletion7 = (_step7 = _iterator7.next()).done); _iteratorNormalCompletion7 = true) {
            var _step7$value = _slicedToArray(_step7.value, 2),
                key = _step7$value[0],
                value = _step7$value[1];

            switch (key) {
              case 'LW':
                this.setLineWidth(value);
                break;

              case 'LC':
                this.setLineCap(value);
                break;

              case 'LJ':
                this.setLineJoin(value);
                break;

              case 'ML':
                this.setMiterLimit(value);
                break;

              case 'D':
                this.setDash(value[0], value[1]);
                break;

              case 'RI':
                this.setRenderingIntent(value);
                break;

              case 'FL':
                this.setFlatness(value);
                break;

              case 'Font':
                this.setFont(value);
                break;

              case 'CA':
                this.setStrokeAlpha(value);
                break;

              case 'ca':
                this.setFillAlpha(value);
                break;

              default:
                (0, _util.warn)("Unimplemented graphic state operator ".concat(key));
                break;
            }
          }
        } catch (err) {
          _didIteratorError7 = true;
          _iteratorError7 = err;
        } finally {
          try {
            if (!_iteratorNormalCompletion7 && _iterator7["return"] != null) {
              _iterator7["return"]();
            }
          } finally {
            if (_didIteratorError7) {
              throw _iteratorError7;
            }
          }
        }
      }
    }, {
      key: "fill",
      value: function fill() {
        var current = this.current;

        if (current.element) {
          current.element.setAttributeNS(null, 'fill', current.fillColor);
          current.element.setAttributeNS(null, 'fill-opacity', current.fillAlpha);
          this.endPath();
        }
      }
    }, {
      key: "stroke",
      value: function stroke() {
        var current = this.current;

        if (current.element) {
          this._setStrokeAttributes(current.element);

          current.element.setAttributeNS(null, 'fill', 'none');
          this.endPath();
        }
      }
    }, {
      key: "_setStrokeAttributes",
      value: function _setStrokeAttributes(element) {
        var lineWidthScale = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 1;
        var current = this.current;
        var dashArray = current.dashArray;

        if (lineWidthScale !== 1 && dashArray.length > 0) {
          dashArray = dashArray.map(function (value) {
            return lineWidthScale * value;
          });
        }

        element.setAttributeNS(null, 'stroke', current.strokeColor);
        element.setAttributeNS(null, 'stroke-opacity', current.strokeAlpha);
        element.setAttributeNS(null, 'stroke-miterlimit', pf(current.miterLimit));
        element.setAttributeNS(null, 'stroke-linecap', current.lineCap);
        element.setAttributeNS(null, 'stroke-linejoin', current.lineJoin);
        element.setAttributeNS(null, 'stroke-width', pf(lineWidthScale * current.lineWidth) + 'px');
        element.setAttributeNS(null, 'stroke-dasharray', dashArray.map(pf).join(' '));
        element.setAttributeNS(null, 'stroke-dashoffset', pf(lineWidthScale * current.dashPhase) + 'px');
      }
    }, {
      key: "eoFill",
      value: function eoFill() {
        if (this.current.element) {
          this.current.element.setAttributeNS(null, 'fill-rule', 'evenodd');
        }

        this.fill();
      }
    }, {
      key: "fillStroke",
      value: function fillStroke() {
        this.stroke();
        this.fill();
      }
    }, {
      key: "eoFillStroke",
      value: function eoFillStroke() {
        if (this.current.element) {
          this.current.element.setAttributeNS(null, 'fill-rule', 'evenodd');
        }

        this.fillStroke();
      }
    }, {
      key: "closeStroke",
      value: function closeStroke() {
        this.closePath();
        this.stroke();
      }
    }, {
      key: "closeFillStroke",
      value: function closeFillStroke() {
        this.closePath();
        this.fillStroke();
      }
    }, {
      key: "closeEOFillStroke",
      value: function closeEOFillStroke() {
        this.closePath();
        this.eoFillStroke();
      }
    }, {
      key: "paintSolidColorImageMask",
      value: function paintSolidColorImageMask() {
        var rect = this.svgFactory.createElement('svg:rect');
        rect.setAttributeNS(null, 'x', '0');
        rect.setAttributeNS(null, 'y', '0');
        rect.setAttributeNS(null, 'width', '1px');
        rect.setAttributeNS(null, 'height', '1px');
        rect.setAttributeNS(null, 'fill', this.current.fillColor);

        this._ensureTransformGroup().appendChild(rect);
      }
    }, {
      key: "paintJpegXObject",
      value: function paintJpegXObject(objId, w, h) {
        var imgObj = this.objs.get(objId);
        var imgEl = this.svgFactory.createElement('svg:image');
        imgEl.setAttributeNS(XLINK_NS, 'xlink:href', imgObj.src);
        imgEl.setAttributeNS(null, 'width', pf(w));
        imgEl.setAttributeNS(null, 'height', pf(h));
        imgEl.setAttributeNS(null, 'x', '0');
        imgEl.setAttributeNS(null, 'y', pf(-h));
        imgEl.setAttributeNS(null, 'transform', "scale(".concat(pf(1 / w), " ").concat(pf(-1 / h), ")"));

        this._ensureTransformGroup().appendChild(imgEl);
      }
    }, {
      key: "paintImageXObject",
      value: function paintImageXObject(objId) {
        var imgData = this.objs.get(objId);

        if (!imgData) {
          (0, _util.warn)("Dependent image with object ID ".concat(objId, " is not ready yet"));
          return;
        }

        this.paintInlineImageXObject(imgData);
      }
    }, {
      key: "paintInlineImageXObject",
      value: function paintInlineImageXObject(imgData, mask) {
        var width = imgData.width;
        var height = imgData.height;
        var imgSrc = convertImgDataToPng(imgData, this.forceDataSchema, !!mask);
        var cliprect = this.svgFactory.createElement('svg:rect');
        cliprect.setAttributeNS(null, 'x', '0');
        cliprect.setAttributeNS(null, 'y', '0');
        cliprect.setAttributeNS(null, 'width', pf(width));
        cliprect.setAttributeNS(null, 'height', pf(height));
        this.current.element = cliprect;
        this.clip('nonzero');
        var imgEl = this.svgFactory.createElement('svg:image');
        imgEl.setAttributeNS(XLINK_NS, 'xlink:href', imgSrc);
        imgEl.setAttributeNS(null, 'x', '0');
        imgEl.setAttributeNS(null, 'y', pf(-height));
        imgEl.setAttributeNS(null, 'width', pf(width) + 'px');
        imgEl.setAttributeNS(null, 'height', pf(height) + 'px');
        imgEl.setAttributeNS(null, 'transform', "scale(".concat(pf(1 / width), " ").concat(pf(-1 / height), ")"));

        if (mask) {
          mask.appendChild(imgEl);
        } else {
          this._ensureTransformGroup().appendChild(imgEl);
        }
      }
    }, {
      key: "paintImageMaskXObject",
      value: function paintImageMaskXObject(imgData) {
        var current = this.current;
        var width = imgData.width;
        var height = imgData.height;
        var fillColor = current.fillColor;
        current.maskId = "mask".concat(maskCount++);
        var mask = this.svgFactory.createElement('svg:mask');
        mask.setAttributeNS(null, 'id', current.maskId);
        var rect = this.svgFactory.createElement('svg:rect');
        rect.setAttributeNS(null, 'x', '0');
        rect.setAttributeNS(null, 'y', '0');
        rect.setAttributeNS(null, 'width', pf(width));
        rect.setAttributeNS(null, 'height', pf(height));
        rect.setAttributeNS(null, 'fill', fillColor);
        rect.setAttributeNS(null, 'mask', "url(#".concat(current.maskId, ")"));
        this.defs.appendChild(mask);

        this._ensureTransformGroup().appendChild(rect);

        this.paintInlineImageXObject(imgData, mask);
      }
    }, {
      key: "paintFormXObjectBegin",
      value: function paintFormXObjectBegin(matrix, bbox) {
        if (Array.isArray(matrix) && matrix.length === 6) {
          this.transform(matrix[0], matrix[1], matrix[2], matrix[3], matrix[4], matrix[5]);
        }

        if (bbox) {
          var width = bbox[2] - bbox[0];
          var height = bbox[3] - bbox[1];
          var cliprect = this.svgFactory.createElement('svg:rect');
          cliprect.setAttributeNS(null, 'x', bbox[0]);
          cliprect.setAttributeNS(null, 'y', bbox[1]);
          cliprect.setAttributeNS(null, 'width', pf(width));
          cliprect.setAttributeNS(null, 'height', pf(height));
          this.current.element = cliprect;
          this.clip('nonzero');
          this.endPath();
        }
      }
    }, {
      key: "paintFormXObjectEnd",
      value: function paintFormXObjectEnd() {}
    }, {
      key: "_initialize",
      value: function _initialize(viewport) {
        var svg = this.svgFactory.create(viewport.width, viewport.height);
        var definitions = this.svgFactory.createElement('svg:defs');
        svg.appendChild(definitions);
        this.defs = definitions;
        var rootGroup = this.svgFactory.createElement('svg:g');
        rootGroup.setAttributeNS(null, 'transform', pm(viewport.transform));
        svg.appendChild(rootGroup);
        this.svg = rootGroup;
        return svg;
      }
    }, {
      key: "_ensureClipGroup",
      value: function _ensureClipGroup() {
        if (!this.current.clipGroup) {
          var clipGroup = this.svgFactory.createElement('svg:g');
          clipGroup.setAttributeNS(null, 'clip-path', this.current.activeClipUrl);
          this.svg.appendChild(clipGroup);
          this.current.clipGroup = clipGroup;
        }

        return this.current.clipGroup;
      }
    }, {
      key: "_ensureTransformGroup",
      value: function _ensureTransformGroup() {
        if (!this.tgrp) {
          this.tgrp = this.svgFactory.createElement('svg:g');
          this.tgrp.setAttributeNS(null, 'transform', pm(this.transformMatrix));

          if (this.current.activeClipUrl) {
            this._ensureClipGroup().appendChild(this.tgrp);
          } else {
            this.svg.appendChild(this.tgrp);
          }
        }

        return this.tgrp;
      }
    }]);

    return SVGGraphics;
  }();
}

/***/ }),
/* 165 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PDFNodeStream = void 0;

var _regenerator = _interopRequireDefault(__w_pdfjs_require__(148));

var _util = __w_pdfjs_require__(1);

var _network_utils = __w_pdfjs_require__(166);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }

function _typeof(obj) { if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }

function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

var fs = require('fs');

var http = require('http');

var https = require('https');

var url = require('url');

var fileUriRegex = /^file:\/\/\/[a-zA-Z]:\//;

function parseUrl(sourceUrl) {
  var parsedUrl = url.parse(sourceUrl);

  if (parsedUrl.protocol === 'file:' || parsedUrl.host) {
    return parsedUrl;
  }

  if (/^[a-z]:[/\\]/i.test(sourceUrl)) {
    return url.parse("file:///".concat(sourceUrl));
  }

  if (!parsedUrl.host) {
    parsedUrl.protocol = 'file:';
  }

  return parsedUrl;
}

var PDFNodeStream =
/*#__PURE__*/
function () {
  function PDFNodeStream(source) {
    _classCallCheck(this, PDFNodeStream);

    this.source = source;
    this.url = parseUrl(source.url);
    this.isHttp = this.url.protocol === 'http:' || this.url.protocol === 'https:';
    this.isFsUrl = this.url.protocol === 'file:';
    this.httpHeaders = this.isHttp && source.httpHeaders || {};
    this._fullRequestReader = null;
    this._rangeRequestReaders = [];
  }

  _createClass(PDFNodeStream, [{
    key: "getFullReader",
    value: function getFullReader() {
      (0, _util.assert)(!this._fullRequestReader);
      this._fullRequestReader = this.isFsUrl ? new PDFNodeStreamFsFullReader(this) : new PDFNodeStreamFullReader(this);
      return this._fullRequestReader;
    }
  }, {
    key: "getRangeReader",
    value: function getRangeReader(start, end) {
      if (end <= this._progressiveDataLength) {
        return null;
      }

      var rangeReader = this.isFsUrl ? new PDFNodeStreamFsRangeReader(this, start, end) : new PDFNodeStreamRangeReader(this, start, end);

      this._rangeRequestReaders.push(rangeReader);

      return rangeReader;
    }
  }, {
    key: "cancelAllRequests",
    value: function cancelAllRequests(reason) {
      if (this._fullRequestReader) {
        this._fullRequestReader.cancel(reason);
      }

      var readers = this._rangeRequestReaders.slice(0);

      readers.forEach(function (reader) {
        reader.cancel(reason);
      });
    }
  }, {
    key: "_progressiveDataLength",
    get: function get() {
      return this._fullRequestReader ? this._fullRequestReader._loaded : 0;
    }
  }]);

  return PDFNodeStream;
}();

exports.PDFNodeStream = PDFNodeStream;

var BaseFullReader =
/*#__PURE__*/
function () {
  function BaseFullReader(stream) {
    _classCallCheck(this, BaseFullReader);

    this._url = stream.url;
    this._done = false;
    this._storedError = null;
    this.onProgress = null;
    var source = stream.source;
    this._contentLength = source.length;
    this._loaded = 0;
    this._filename = null;
    this._disableRange = source.disableRange || false;
    this._rangeChunkSize = source.rangeChunkSize;

    if (!this._rangeChunkSize && !this._disableRange) {
      this._disableRange = true;
    }

    this._isStreamingSupported = !source.disableStream;
    this._isRangeSupported = !source.disableRange;
    this._readableStream = null;
    this._readCapability = (0, _util.createPromiseCapability)();
    this._headersCapability = (0, _util.createPromiseCapability)();
  }

  _createClass(BaseFullReader, [{
    key: "read",
    value: function () {
      var _read = _asyncToGenerator(
      /*#__PURE__*/
      _regenerator["default"].mark(function _callee() {
        var chunk, buffer;
        return _regenerator["default"].wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                _context.next = 2;
                return this._readCapability.promise;

              case 2:
                if (!this._done) {
                  _context.next = 4;
                  break;
                }

                return _context.abrupt("return", {
                  value: undefined,
                  done: true
                });

              case 4:
                if (!this._storedError) {
                  _context.next = 6;
                  break;
                }

                throw this._storedError;

              case 6:
                chunk = this._readableStream.read();

                if (!(chunk === null)) {
                  _context.next = 10;
                  break;
                }

                this._readCapability = (0, _util.createPromiseCapability)();
                return _context.abrupt("return", this.read());

              case 10:
                this._loaded += chunk.length;

                if (this.onProgress) {
                  this.onProgress({
                    loaded: this._loaded,
                    total: this._contentLength
                  });
                }

                buffer = new Uint8Array(chunk).buffer;
                return _context.abrupt("return", {
                  value: buffer,
                  done: false
                });

              case 14:
              case "end":
                return _context.stop();
            }
          }
        }, _callee, this);
      }));

      function read() {
        return _read.apply(this, arguments);
      }

      return read;
    }()
  }, {
    key: "cancel",
    value: function cancel(reason) {
      if (!this._readableStream) {
        this._error(reason);

        return;
      }

      this._readableStream.destroy(reason);
    }
  }, {
    key: "_error",
    value: function _error(reason) {
      this._storedError = reason;

      this._readCapability.resolve();
    }
  }, {
    key: "_setReadableStream",
    value: function _setReadableStream(readableStream) {
      var _this = this;

      this._readableStream = readableStream;
      readableStream.on('readable', function () {
        _this._readCapability.resolve();
      });
      readableStream.on('end', function () {
        readableStream.destroy();
        _this._done = true;

        _this._readCapability.resolve();
      });
      readableStream.on('error', function (reason) {
        _this._error(reason);
      });

      if (!this._isStreamingSupported && this._isRangeSupported) {
        this._error(new _util.AbortException('streaming is disabled'));
      }

      if (this._storedError) {
        this._readableStream.destroy(this._storedError);
      }
    }
  }, {
    key: "headersReady",
    get: function get() {
      return this._headersCapability.promise;
    }
  }, {
    key: "filename",
    get: function get() {
      return this._filename;
    }
  }, {
    key: "contentLength",
    get: function get() {
      return this._contentLength;
    }
  }, {
    key: "isRangeSupported",
    get: function get() {
      return this._isRangeSupported;
    }
  }, {
    key: "isStreamingSupported",
    get: function get() {
      return this._isStreamingSupported;
    }
  }]);

  return BaseFullReader;
}();

var BaseRangeReader =
/*#__PURE__*/
function () {
  function BaseRangeReader(stream) {
    _classCallCheck(this, BaseRangeReader);

    this._url = stream.url;
    this._done = false;
    this._storedError = null;
    this.onProgress = null;
    this._loaded = 0;
    this._readableStream = null;
    this._readCapability = (0, _util.createPromiseCapability)();
    var source = stream.source;
    this._isStreamingSupported = !source.disableStream;
  }

  _createClass(BaseRangeReader, [{
    key: "read",
    value: function () {
      var _read2 = _asyncToGenerator(
      /*#__PURE__*/
      _regenerator["default"].mark(function _callee2() {
        var chunk, buffer;
        return _regenerator["default"].wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                _context2.next = 2;
                return this._readCapability.promise;

              case 2:
                if (!this._done) {
                  _context2.next = 4;
                  break;
                }

                return _context2.abrupt("return", {
                  value: undefined,
                  done: true
                });

              case 4:
                if (!this._storedError) {
                  _context2.next = 6;
                  break;
                }

                throw this._storedError;

              case 6:
                chunk = this._readableStream.read();

                if (!(chunk === null)) {
                  _context2.next = 10;
                  break;
                }

                this._readCapability = (0, _util.createPromiseCapability)();
                return _context2.abrupt("return", this.read());

              case 10:
                this._loaded += chunk.length;

                if (this.onProgress) {
                  this.onProgress({
                    loaded: this._loaded
                  });
                }

                buffer = new Uint8Array(chunk).buffer;
                return _context2.abrupt("return", {
                  value: buffer,
                  done: false
                });

              case 14:
              case "end":
                return _context2.stop();
            }
          }
        }, _callee2, this);
      }));

      function read() {
        return _read2.apply(this, arguments);
      }

      return read;
    }()
  }, {
    key: "cancel",
    value: function cancel(reason) {
      if (!this._readableStream) {
        this._error(reason);

        return;
      }

      this._readableStream.destroy(reason);
    }
  }, {
    key: "_error",
    value: function _error(reason) {
      this._storedError = reason;

      this._readCapability.resolve();
    }
  }, {
    key: "_setReadableStream",
    value: function _setReadableStream(readableStream) {
      var _this2 = this;

      this._readableStream = readableStream;
      readableStream.on('readable', function () {
        _this2._readCapability.resolve();
      });
      readableStream.on('end', function () {
        readableStream.destroy();
        _this2._done = true;

        _this2._readCapability.resolve();
      });
      readableStream.on('error', function (reason) {
        _this2._error(reason);
      });

      if (this._storedError) {
        this._readableStream.destroy(this._storedError);
      }
    }
  }, {
    key: "isStreamingSupported",
    get: function get() {
      return this._isStreamingSupported;
    }
  }]);

  return BaseRangeReader;
}();

function createRequestOptions(url, headers) {
  return {
    protocol: url.protocol,
    auth: url.auth,
    host: url.hostname,
    port: url.port,
    path: url.path,
    method: 'GET',
    headers: headers
  };
}

var PDFNodeStreamFullReader =
/*#__PURE__*/
function (_BaseFullReader) {
  _inherits(PDFNodeStreamFullReader, _BaseFullReader);

  function PDFNodeStreamFullReader(stream) {
    var _this3;

    _classCallCheck(this, PDFNodeStreamFullReader);

    _this3 = _possibleConstructorReturn(this, _getPrototypeOf(PDFNodeStreamFullReader).call(this, stream));

    var handleResponse = function handleResponse(response) {
      if (response.statusCode === 404) {
        var error = new _util.MissingPDFException("Missing PDF \"".concat(_this3._url, "\"."));
        _this3._storedError = error;

        _this3._headersCapability.reject(error);

        return;
      }

      _this3._headersCapability.resolve();

      _this3._setReadableStream(response);

      var getResponseHeader = function getResponseHeader(name) {
        return _this3._readableStream.headers[name.toLowerCase()];
      };

      var _validateRangeRequest = (0, _network_utils.validateRangeRequestCapabilities)({
        getResponseHeader: getResponseHeader,
        isHttp: stream.isHttp,
        rangeChunkSize: _this3._rangeChunkSize,
        disableRange: _this3._disableRange
      }),
          allowRangeRequests = _validateRangeRequest.allowRangeRequests,
          suggestedLength = _validateRangeRequest.suggestedLength;

      _this3._isRangeSupported = allowRangeRequests;
      _this3._contentLength = suggestedLength || _this3._contentLength;
      _this3._filename = (0, _network_utils.extractFilenameFromHeader)(getResponseHeader);
    };

    _this3._request = null;

    if (_this3._url.protocol === 'http:') {
      _this3._request = http.request(createRequestOptions(_this3._url, stream.httpHeaders), handleResponse);
    } else {
      _this3._request = https.request(createRequestOptions(_this3._url, stream.httpHeaders), handleResponse);
    }

    _this3._request.on('error', function (reason) {
      _this3._storedError = reason;

      _this3._headersCapability.reject(reason);
    });

    _this3._request.end();

    return _this3;
  }

  return PDFNodeStreamFullReader;
}(BaseFullReader);

var PDFNodeStreamRangeReader =
/*#__PURE__*/
function (_BaseRangeReader) {
  _inherits(PDFNodeStreamRangeReader, _BaseRangeReader);

  function PDFNodeStreamRangeReader(stream, start, end) {
    var _this4;

    _classCallCheck(this, PDFNodeStreamRangeReader);

    _this4 = _possibleConstructorReturn(this, _getPrototypeOf(PDFNodeStreamRangeReader).call(this, stream));
    _this4._httpHeaders = {};

    for (var property in stream.httpHeaders) {
      var value = stream.httpHeaders[property];

      if (typeof value === 'undefined') {
        continue;
      }

      _this4._httpHeaders[property] = value;
    }

    _this4._httpHeaders['Range'] = "bytes=".concat(start, "-").concat(end - 1);

    var handleResponse = function handleResponse(response) {
      if (response.statusCode === 404) {
        var error = new _util.MissingPDFException("Missing PDF \"".concat(_this4._url, "\"."));
        _this4._storedError = error;
        return;
      }

      _this4._setReadableStream(response);
    };

    _this4._request = null;

    if (_this4._url.protocol === 'http:') {
      _this4._request = http.request(createRequestOptions(_this4._url, _this4._httpHeaders), handleResponse);
    } else {
      _this4._request = https.request(createRequestOptions(_this4._url, _this4._httpHeaders), handleResponse);
    }

    _this4._request.on('error', function (reason) {
      _this4._storedError = reason;
    });

    _this4._request.end();

    return _this4;
  }

  return PDFNodeStreamRangeReader;
}(BaseRangeReader);

var PDFNodeStreamFsFullReader =
/*#__PURE__*/
function (_BaseFullReader2) {
  _inherits(PDFNodeStreamFsFullReader, _BaseFullReader2);

  function PDFNodeStreamFsFullReader(stream) {
    var _this5;

    _classCallCheck(this, PDFNodeStreamFsFullReader);

    _this5 = _possibleConstructorReturn(this, _getPrototypeOf(PDFNodeStreamFsFullReader).call(this, stream));
    var path = decodeURIComponent(_this5._url.path);

    if (fileUriRegex.test(_this5._url.href)) {
      path = path.replace(/^\//, '');
    }

    fs.lstat(path, function (error, stat) {
      if (error) {
        if (error.code === 'ENOENT') {
          error = new _util.MissingPDFException("Missing PDF \"".concat(path, "\"."));
        }

        _this5._storedError = error;

        _this5._headersCapability.reject(error);

        return;
      }

      _this5._contentLength = stat.size;

      _this5._setReadableStream(fs.createReadStream(path));

      _this5._headersCapability.resolve();
    });
    return _this5;
  }

  return PDFNodeStreamFsFullReader;
}(BaseFullReader);

var PDFNodeStreamFsRangeReader =
/*#__PURE__*/
function (_BaseRangeReader2) {
  _inherits(PDFNodeStreamFsRangeReader, _BaseRangeReader2);

  function PDFNodeStreamFsRangeReader(stream, start, end) {
    var _this6;

    _classCallCheck(this, PDFNodeStreamFsRangeReader);

    _this6 = _possibleConstructorReturn(this, _getPrototypeOf(PDFNodeStreamFsRangeReader).call(this, stream));
    var path = decodeURIComponent(_this6._url.path);

    if (fileUriRegex.test(_this6._url.href)) {
      path = path.replace(/^\//, '');
    }

    _this6._setReadableStream(fs.createReadStream(path, {
      start: start,
      end: end - 1
    }));

    return _this6;
  }

  return PDFNodeStreamFsRangeReader;
}(BaseRangeReader);

/***/ }),
/* 166 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.createResponseStatusError = createResponseStatusError;
exports.extractFilenameFromHeader = extractFilenameFromHeader;
exports.validateRangeRequestCapabilities = validateRangeRequestCapabilities;
exports.validateResponseStatus = validateResponseStatus;

var _util = __w_pdfjs_require__(1);

var _content_disposition = __w_pdfjs_require__(167);

function validateRangeRequestCapabilities(_ref) {
  var getResponseHeader = _ref.getResponseHeader,
      isHttp = _ref.isHttp,
      rangeChunkSize = _ref.rangeChunkSize,
      disableRange = _ref.disableRange;
  (0, _util.assert)(rangeChunkSize > 0, 'Range chunk size must be larger than zero');
  var returnValues = {
    allowRangeRequests: false,
    suggestedLength: undefined
  };
  var length = parseInt(getResponseHeader('Content-Length'), 10);

  if (!Number.isInteger(length)) {
    return returnValues;
  }

  returnValues.suggestedLength = length;

  if (length <= 2 * rangeChunkSize) {
    return returnValues;
  }

  if (disableRange || !isHttp) {
    return returnValues;
  }

  if (getResponseHeader('Accept-Ranges') !== 'bytes') {
    return returnValues;
  }

  var contentEncoding = getResponseHeader('Content-Encoding') || 'identity';

  if (contentEncoding !== 'identity') {
    return returnValues;
  }

  returnValues.allowRangeRequests = true;
  return returnValues;
}

function extractFilenameFromHeader(getResponseHeader) {
  var contentDisposition = getResponseHeader('Content-Disposition');

  if (contentDisposition) {
    var filename = (0, _content_disposition.getFilenameFromContentDispositionHeader)(contentDisposition);

    if (filename.includes('%')) {
      try {
        filename = decodeURIComponent(filename);
      } catch (ex) {}
    }

    if (/\.pdf$/i.test(filename)) {
      return filename;
    }
  }

  return null;
}

function createResponseStatusError(status, url) {
  if (status === 404 || status === 0 && /^file:/.test(url)) {
    return new _util.MissingPDFException('Missing PDF "' + url + '".');
  }

  return new _util.UnexpectedResponseException('Unexpected server response (' + status + ') while retrieving PDF "' + url + '".', status);
}

function validateResponseStatus(status) {
  return status === 200 || status === 206;
}

/***/ }),
/* 167 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.getFilenameFromContentDispositionHeader = getFilenameFromContentDispositionHeader;

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }

function _iterableToArrayLimit(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

function getFilenameFromContentDispositionHeader(contentDisposition) {
  var needsEncodingFixup = true;
  var tmp = toParamRegExp('filename\\*', 'i').exec(contentDisposition);

  if (tmp) {
    tmp = tmp[1];
    var filename = rfc2616unquote(tmp);
    filename = unescape(filename);
    filename = rfc5987decode(filename);
    filename = rfc2047decode(filename);
    return fixupEncoding(filename);
  }

  tmp = rfc2231getparam(contentDisposition);

  if (tmp) {
    var _filename = rfc2047decode(tmp);

    return fixupEncoding(_filename);
  }

  tmp = toParamRegExp('filename', 'i').exec(contentDisposition);

  if (tmp) {
    tmp = tmp[1];

    var _filename2 = rfc2616unquote(tmp);

    _filename2 = rfc2047decode(_filename2);
    return fixupEncoding(_filename2);
  }

  function toParamRegExp(attributePattern, flags) {
    return new RegExp('(?:^|;)\\s*' + attributePattern + '\\s*=\\s*' + '(' + '[^";\\s][^;\\s]*' + '|' + '"(?:[^"\\\\]|\\\\"?)+"?' + ')', flags);
  }

  function textdecode(encoding, value) {
    if (encoding) {
      if (!/^[\x00-\xFF]+$/.test(value)) {
        return value;
      }

      try {
        var decoder = new TextDecoder(encoding, {
          fatal: true
        });
        var bytes = Array.from(value, function (ch) {
          return ch.charCodeAt(0) & 0xFF;
        });
        value = decoder.decode(new Uint8Array(bytes));
        needsEncodingFixup = false;
      } catch (e) {
        if (/^utf-?8$/i.test(encoding)) {
          try {
            value = decodeURIComponent(escape(value));
            needsEncodingFixup = false;
          } catch (err) {}
        }
      }
    }

    return value;
  }

  function fixupEncoding(value) {
    if (needsEncodingFixup && /[\x80-\xff]/.test(value)) {
      value = textdecode('utf-8', value);

      if (needsEncodingFixup) {
        value = textdecode('iso-8859-1', value);
      }
    }

    return value;
  }

  function rfc2231getparam(contentDisposition) {
    var matches = [],
        match;
    var iter = toParamRegExp('filename\\*((?!0\\d)\\d+)(\\*?)', 'ig');

    while ((match = iter.exec(contentDisposition)) !== null) {
      var _match = match,
          _match2 = _slicedToArray(_match, 4),
          n = _match2[1],
          quot = _match2[2],
          part = _match2[3];

      n = parseInt(n, 10);

      if (n in matches) {
        if (n === 0) {
          break;
        }

        continue;
      }

      matches[n] = [quot, part];
    }

    var parts = [];

    for (var n = 0; n < matches.length; ++n) {
      if (!(n in matches)) {
        break;
      }

      var _matches$n = _slicedToArray(matches[n], 2),
          quot = _matches$n[0],
          part = _matches$n[1];

      part = rfc2616unquote(part);

      if (quot) {
        part = unescape(part);

        if (n === 0) {
          part = rfc5987decode(part);
        }
      }

      parts.push(part);
    }

    return parts.join('');
  }

  function rfc2616unquote(value) {
    if (value.startsWith('"')) {
      var parts = value.slice(1).split('\\"');

      for (var i = 0; i < parts.length; ++i) {
        var quotindex = parts[i].indexOf('"');

        if (quotindex !== -1) {
          parts[i] = parts[i].slice(0, quotindex);
          parts.length = i + 1;
        }

        parts[i] = parts[i].replace(/\\(.)/g, '$1');
      }

      value = parts.join('"');
    }

    return value;
  }

  function rfc5987decode(extvalue) {
    var encodingend = extvalue.indexOf('\'');

    if (encodingend === -1) {
      return extvalue;
    }

    var encoding = extvalue.slice(0, encodingend);
    var langvalue = extvalue.slice(encodingend + 1);
    var value = langvalue.replace(/^[^']*'/, '');
    return textdecode(encoding, value);
  }

  function rfc2047decode(value) {
    if (!value.startsWith('=?') || /[\x00-\x19\x80-\xff]/.test(value)) {
      return value;
    }

    return value.replace(/=\?([\w-]*)\?([QqBb])\?((?:[^?]|\?(?!=))*)\?=/g, function (_, charset, encoding, text) {
      if (encoding === 'q' || encoding === 'Q') {
        text = text.replace(/_/g, ' ');
        text = text.replace(/=([0-9a-fA-F]{2})/g, function (_, hex) {
          return String.fromCharCode(parseInt(hex, 16));
        });
        return textdecode(charset, text);
      }

      try {
        text = atob(text);
      } catch (e) {}

      return textdecode(charset, text);
    });
  }

  return '';
}

/***/ }),
/* 168 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PDFNetworkStream = void 0;

var _regenerator = _interopRequireDefault(__w_pdfjs_require__(148));

var _util = __w_pdfjs_require__(1);

var _network_utils = __w_pdfjs_require__(166);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

;
var OK_RESPONSE = 200;
var PARTIAL_CONTENT_RESPONSE = 206;

function getArrayBuffer(xhr) {
  var data = xhr.response;

  if (typeof data !== 'string') {
    return data;
  }

  var array = (0, _util.stringToBytes)(data);
  return array.buffer;
}

var NetworkManager =
/*#__PURE__*/
function () {
  function NetworkManager(url, args) {
    _classCallCheck(this, NetworkManager);

    this.url = url;
    args = args || {};
    this.isHttp = /^https?:/i.test(url);
    this.httpHeaders = this.isHttp && args.httpHeaders || {};
    this.withCredentials = args.withCredentials || false;

    this.getXhr = args.getXhr || function NetworkManager_getXhr() {
      return new XMLHttpRequest();
    };

    this.currXhrId = 0;
    this.pendingRequests = Object.create(null);
  }

  _createClass(NetworkManager, [{
    key: "requestRange",
    value: function requestRange(begin, end, listeners) {
      var args = {
        begin: begin,
        end: end
      };

      for (var prop in listeners) {
        args[prop] = listeners[prop];
      }

      return this.request(args);
    }
  }, {
    key: "requestFull",
    value: function requestFull(listeners) {
      return this.request(listeners);
    }
  }, {
    key: "request",
    value: function request(args) {
      var xhr = this.getXhr();
      var xhrId = this.currXhrId++;
      var pendingRequest = this.pendingRequests[xhrId] = {
        xhr: xhr
      };
      xhr.open('GET', this.url);
      xhr.withCredentials = this.withCredentials;

      for (var property in this.httpHeaders) {
        var value = this.httpHeaders[property];

        if (typeof value === 'undefined') {
          continue;
        }

        xhr.setRequestHeader(property, value);
      }

      if (this.isHttp && 'begin' in args && 'end' in args) {
        xhr.setRequestHeader('Range', "bytes=".concat(args.begin, "-").concat(args.end - 1));
        pendingRequest.expectedStatus = PARTIAL_CONTENT_RESPONSE;
      } else {
        pendingRequest.expectedStatus = OK_RESPONSE;
      }

      xhr.responseType = 'arraybuffer';

      if (args.onError) {
        xhr.onerror = function (evt) {
          args.onError(xhr.status);
        };
      }

      xhr.onreadystatechange = this.onStateChange.bind(this, xhrId);
      xhr.onprogress = this.onProgress.bind(this, xhrId);
      pendingRequest.onHeadersReceived = args.onHeadersReceived;
      pendingRequest.onDone = args.onDone;
      pendingRequest.onError = args.onError;
      pendingRequest.onProgress = args.onProgress;
      xhr.send(null);
      return xhrId;
    }
  }, {
    key: "onProgress",
    value: function onProgress(xhrId, evt) {
      var pendingRequest = this.pendingRequests[xhrId];

      if (!pendingRequest) {
        return;
      }

      if (pendingRequest.onProgress) {
        pendingRequest.onProgress(evt);
      }
    }
  }, {
    key: "onStateChange",
    value: function onStateChange(xhrId, evt) {
      var pendingRequest = this.pendingRequests[xhrId];

      if (!pendingRequest) {
        return;
      }

      var xhr = pendingRequest.xhr;

      if (xhr.readyState >= 2 && pendingRequest.onHeadersReceived) {
        pendingRequest.onHeadersReceived();
        delete pendingRequest.onHeadersReceived;
      }

      if (xhr.readyState !== 4) {
        return;
      }

      if (!(xhrId in this.pendingRequests)) {
        return;
      }

      delete this.pendingRequests[xhrId];

      if (xhr.status === 0 && this.isHttp) {
        if (pendingRequest.onError) {
          pendingRequest.onError(xhr.status);
        }

        return;
      }

      var xhrStatus = xhr.status || OK_RESPONSE;
      var ok_response_on_range_request = xhrStatus === OK_RESPONSE && pendingRequest.expectedStatus === PARTIAL_CONTENT_RESPONSE;

      if (!ok_response_on_range_request && xhrStatus !== pendingRequest.expectedStatus) {
        if (pendingRequest.onError) {
          pendingRequest.onError(xhr.status);
        }

        return;
      }

      var chunk = getArrayBuffer(xhr);

      if (xhrStatus === PARTIAL_CONTENT_RESPONSE) {
        var rangeHeader = xhr.getResponseHeader('Content-Range');
        var matches = /bytes (\d+)-(\d+)\/(\d+)/.exec(rangeHeader);
        pendingRequest.onDone({
          begin: parseInt(matches[1], 10),
          chunk: chunk
        });
      } else if (chunk) {
        pendingRequest.onDone({
          begin: 0,
          chunk: chunk
        });
      } else if (pendingRequest.onError) {
        pendingRequest.onError(xhr.status);
      }
    }
  }, {
    key: "hasPendingRequests",
    value: function hasPendingRequests() {
      for (var xhrId in this.pendingRequests) {
        return true;
      }

      return false;
    }
  }, {
    key: "getRequestXhr",
    value: function getRequestXhr(xhrId) {
      return this.pendingRequests[xhrId].xhr;
    }
  }, {
    key: "isPendingRequest",
    value: function isPendingRequest(xhrId) {
      return xhrId in this.pendingRequests;
    }
  }, {
    key: "abortAllRequests",
    value: function abortAllRequests() {
      for (var xhrId in this.pendingRequests) {
        this.abortRequest(xhrId | 0);
      }
    }
  }, {
    key: "abortRequest",
    value: function abortRequest(xhrId) {
      var xhr = this.pendingRequests[xhrId].xhr;
      delete this.pendingRequests[xhrId];
      xhr.abort();
    }
  }]);

  return NetworkManager;
}();

var PDFNetworkStream =
/*#__PURE__*/
function () {
  function PDFNetworkStream(source) {
    _classCallCheck(this, PDFNetworkStream);

    this._source = source;
    this._manager = new NetworkManager(source.url, {
      httpHeaders: source.httpHeaders,
      withCredentials: source.withCredentials
    });
    this._rangeChunkSize = source.rangeChunkSize;
    this._fullRequestReader = null;
    this._rangeRequestReaders = [];
  }

  _createClass(PDFNetworkStream, [{
    key: "_onRangeRequestReaderClosed",
    value: function _onRangeRequestReaderClosed(reader) {
      var i = this._rangeRequestReaders.indexOf(reader);

      if (i >= 0) {
        this._rangeRequestReaders.splice(i, 1);
      }
    }
  }, {
    key: "getFullReader",
    value: function getFullReader() {
      (0, _util.assert)(!this._fullRequestReader);
      this._fullRequestReader = new PDFNetworkStreamFullRequestReader(this._manager, this._source);
      return this._fullRequestReader;
    }
  }, {
    key: "getRangeReader",
    value: function getRangeReader(begin, end) {
      var reader = new PDFNetworkStreamRangeRequestReader(this._manager, begin, end);
      reader.onClosed = this._onRangeRequestReaderClosed.bind(this);

      this._rangeRequestReaders.push(reader);

      return reader;
    }
  }, {
    key: "cancelAllRequests",
    value: function cancelAllRequests(reason) {
      if (this._fullRequestReader) {
        this._fullRequestReader.cancel(reason);
      }

      var readers = this._rangeRequestReaders.slice(0);

      readers.forEach(function (reader) {
        reader.cancel(reason);
      });
    }
  }]);

  return PDFNetworkStream;
}();

exports.PDFNetworkStream = PDFNetworkStream;

var PDFNetworkStreamFullRequestReader =
/*#__PURE__*/
function () {
  function PDFNetworkStreamFullRequestReader(manager, source) {
    _classCallCheck(this, PDFNetworkStreamFullRequestReader);

    this._manager = manager;
    var args = {
      onHeadersReceived: this._onHeadersReceived.bind(this),
      onDone: this._onDone.bind(this),
      onError: this._onError.bind(this),
      onProgress: this._onProgress.bind(this)
    };
    this._url = source.url;
    this._fullRequestId = manager.requestFull(args);
    this._headersReceivedCapability = (0, _util.createPromiseCapability)();
    this._disableRange = source.disableRange || false;
    this._contentLength = source.length;
    this._rangeChunkSize = source.rangeChunkSize;

    if (!this._rangeChunkSize && !this._disableRange) {
      this._disableRange = true;
    }

    this._isStreamingSupported = false;
    this._isRangeSupported = false;
    this._cachedChunks = [];
    this._requests = [];
    this._done = false;
    this._storedError = undefined;
    this._filename = null;
    this.onProgress = null;
  }

  _createClass(PDFNetworkStreamFullRequestReader, [{
    key: "_onHeadersReceived",
    value: function _onHeadersReceived() {
      var fullRequestXhrId = this._fullRequestId;

      var fullRequestXhr = this._manager.getRequestXhr(fullRequestXhrId);

      var getResponseHeader = function getResponseHeader(name) {
        return fullRequestXhr.getResponseHeader(name);
      };

      var _validateRangeRequest = (0, _network_utils.validateRangeRequestCapabilities)({
        getResponseHeader: getResponseHeader,
        isHttp: this._manager.isHttp,
        rangeChunkSize: this._rangeChunkSize,
        disableRange: this._disableRange
      }),
          allowRangeRequests = _validateRangeRequest.allowRangeRequests,
          suggestedLength = _validateRangeRequest.suggestedLength;

      if (allowRangeRequests) {
        this._isRangeSupported = true;
      }

      this._contentLength = suggestedLength || this._contentLength;
      this._filename = (0, _network_utils.extractFilenameFromHeader)(getResponseHeader);

      if (this._isRangeSupported) {
        this._manager.abortRequest(fullRequestXhrId);
      }

      this._headersReceivedCapability.resolve();
    }
  }, {
    key: "_onDone",
    value: function _onDone(args) {
      if (args) {
        if (this._requests.length > 0) {
          var requestCapability = this._requests.shift();

          requestCapability.resolve({
            value: args.chunk,
            done: false
          });
        } else {
          this._cachedChunks.push(args.chunk);
        }
      }

      this._done = true;

      if (this._cachedChunks.length > 0) {
        return;
      }

      this._requests.forEach(function (requestCapability) {
        requestCapability.resolve({
          value: undefined,
          done: true
        });
      });

      this._requests = [];
    }
  }, {
    key: "_onError",
    value: function _onError(status) {
      var url = this._url;
      var exception = (0, _network_utils.createResponseStatusError)(status, url);
      this._storedError = exception;

      this._headersReceivedCapability.reject(exception);

      this._requests.forEach(function (requestCapability) {
        requestCapability.reject(exception);
      });

      this._requests = [];
      this._cachedChunks = [];
    }
  }, {
    key: "_onProgress",
    value: function _onProgress(data) {
      if (this.onProgress) {
        this.onProgress({
          loaded: data.loaded,
          total: data.lengthComputable ? data.total : this._contentLength
        });
      }
    }
  }, {
    key: "read",
    value: function () {
      var _read = _asyncToGenerator(
      /*#__PURE__*/
      _regenerator["default"].mark(function _callee() {
        var chunk, requestCapability;
        return _regenerator["default"].wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                if (!this._storedError) {
                  _context.next = 2;
                  break;
                }

                throw this._storedError;

              case 2:
                if (!(this._cachedChunks.length > 0)) {
                  _context.next = 5;
                  break;
                }

                chunk = this._cachedChunks.shift();
                return _context.abrupt("return", {
                  value: chunk,
                  done: false
                });

              case 5:
                if (!this._done) {
                  _context.next = 7;
                  break;
                }

                return _context.abrupt("return", {
                  value: undefined,
                  done: true
                });

              case 7:
                requestCapability = (0, _util.createPromiseCapability)();

                this._requests.push(requestCapability);

                return _context.abrupt("return", requestCapability.promise);

              case 10:
              case "end":
                return _context.stop();
            }
          }
        }, _callee, this);
      }));

      function read() {
        return _read.apply(this, arguments);
      }

      return read;
    }()
  }, {
    key: "cancel",
    value: function cancel(reason) {
      this._done = true;

      this._headersReceivedCapability.reject(reason);

      this._requests.forEach(function (requestCapability) {
        requestCapability.resolve({
          value: undefined,
          done: true
        });
      });

      this._requests = [];

      if (this._manager.isPendingRequest(this._fullRequestId)) {
        this._manager.abortRequest(this._fullRequestId);
      }

      this._fullRequestReader = null;
    }
  }, {
    key: "filename",
    get: function get() {
      return this._filename;
    }
  }, {
    key: "isRangeSupported",
    get: function get() {
      return this._isRangeSupported;
    }
  }, {
    key: "isStreamingSupported",
    get: function get() {
      return this._isStreamingSupported;
    }
  }, {
    key: "contentLength",
    get: function get() {
      return this._contentLength;
    }
  }, {
    key: "headersReady",
    get: function get() {
      return this._headersReceivedCapability.promise;
    }
  }]);

  return PDFNetworkStreamFullRequestReader;
}();

var PDFNetworkStreamRangeRequestReader =
/*#__PURE__*/
function () {
  function PDFNetworkStreamRangeRequestReader(manager, begin, end) {
    _classCallCheck(this, PDFNetworkStreamRangeRequestReader);

    this._manager = manager;
    var args = {
      onDone: this._onDone.bind(this),
      onProgress: this._onProgress.bind(this)
    };
    this._requestId = manager.requestRange(begin, end, args);
    this._requests = [];
    this._queuedChunk = null;
    this._done = false;
    this.onProgress = null;
    this.onClosed = null;
  }

  _createClass(PDFNetworkStreamRangeRequestReader, [{
    key: "_close",
    value: function _close() {
      if (this.onClosed) {
        this.onClosed(this);
      }
    }
  }, {
    key: "_onDone",
    value: function _onDone(data) {
      var chunk = data.chunk;

      if (this._requests.length > 0) {
        var requestCapability = this._requests.shift();

        requestCapability.resolve({
          value: chunk,
          done: false
        });
      } else {
        this._queuedChunk = chunk;
      }

      this._done = true;

      this._requests.forEach(function (requestCapability) {
        requestCapability.resolve({
          value: undefined,
          done: true
        });
      });

      this._requests = [];

      this._close();
    }
  }, {
    key: "_onProgress",
    value: function _onProgress(evt) {
      if (!this.isStreamingSupported && this.onProgress) {
        this.onProgress({
          loaded: evt.loaded
        });
      }
    }
  }, {
    key: "read",
    value: function () {
      var _read2 = _asyncToGenerator(
      /*#__PURE__*/
      _regenerator["default"].mark(function _callee2() {
        var chunk, requestCapability;
        return _regenerator["default"].wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                if (!(this._queuedChunk !== null)) {
                  _context2.next = 4;
                  break;
                }

                chunk = this._queuedChunk;
                this._queuedChunk = null;
                return _context2.abrupt("return", {
                  value: chunk,
                  done: false
                });

              case 4:
                if (!this._done) {
                  _context2.next = 6;
                  break;
                }

                return _context2.abrupt("return", {
                  value: undefined,
                  done: true
                });

              case 6:
                requestCapability = (0, _util.createPromiseCapability)();

                this._requests.push(requestCapability);

                return _context2.abrupt("return", requestCapability.promise);

              case 9:
              case "end":
                return _context2.stop();
            }
          }
        }, _callee2, this);
      }));

      function read() {
        return _read2.apply(this, arguments);
      }

      return read;
    }()
  }, {
    key: "cancel",
    value: function cancel(reason) {
      this._done = true;

      this._requests.forEach(function (requestCapability) {
        requestCapability.resolve({
          value: undefined,
          done: true
        });
      });

      this._requests = [];

      if (this._manager.isPendingRequest(this._requestId)) {
        this._manager.abortRequest(this._requestId);
      }

      this._close();
    }
  }, {
    key: "isStreamingSupported",
    get: function get() {
      return false;
    }
  }]);

  return PDFNetworkStreamRangeRequestReader;
}();

/***/ }),
/* 169 */
/***/ (function(module, exports, __w_pdfjs_require__) {

"use strict";


Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.PDFFetchStream = void 0;

var _regenerator = _interopRequireDefault(__w_pdfjs_require__(148));

var _util = __w_pdfjs_require__(1);

var _network_utils = __w_pdfjs_require__(166);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) { try { var info = gen[key](arg); var value = info.value; } catch (error) { reject(error); return; } if (info.done) { resolve(value); } else { Promise.resolve(value).then(_next, _throw); } }

function _asyncToGenerator(fn) { return function () { var self = this, args = arguments; return new Promise(function (resolve, reject) { var gen = fn.apply(self, args); function _next(value) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value); } function _throw(err) { asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err); } _next(undefined); }); }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function createFetchOptions(headers, withCredentials, abortController) {
  return {
    method: 'GET',
    headers: headers,
    signal: abortController && abortController.signal,
    mode: 'cors',
    credentials: withCredentials ? 'include' : 'same-origin',
    redirect: 'follow'
  };
}

var PDFFetchStream =
/*#__PURE__*/
function () {
  function PDFFetchStream(source) {
    _classCallCheck(this, PDFFetchStream);

    this.source = source;
    this.isHttp = /^https?:/i.test(source.url);
    this.httpHeaders = this.isHttp && source.httpHeaders || {};
    this._fullRequestReader = null;
    this._rangeRequestReaders = [];
  }

  _createClass(PDFFetchStream, [{
    key: "getFullReader",
    value: function getFullReader() {
      (0, _util.assert)(!this._fullRequestReader);
      this._fullRequestReader = new PDFFetchStreamReader(this);
      return this._fullRequestReader;
    }
  }, {
    key: "getRangeReader",
    value: function getRangeReader(begin, end) {
      if (end <= this._progressiveDataLength) {
        return null;
      }

      var reader = new PDFFetchStreamRangeReader(this, begin, end);

      this._rangeRequestReaders.push(reader);

      return reader;
    }
  }, {
    key: "cancelAllRequests",
    value: function cancelAllRequests(reason) {
      if (this._fullRequestReader) {
        this._fullRequestReader.cancel(reason);
      }

      var readers = this._rangeRequestReaders.slice(0);

      readers.forEach(function (reader) {
        reader.cancel(reason);
      });
    }
  }, {
    key: "_progressiveDataLength",
    get: function get() {
      return this._fullRequestReader ? this._fullRequestReader._loaded : 0;
    }
  }]);

  return PDFFetchStream;
}();

exports.PDFFetchStream = PDFFetchStream;

var PDFFetchStreamReader =
/*#__PURE__*/
function () {
  function PDFFetchStreamReader(stream) {
    var _this = this;

    _classCallCheck(this, PDFFetchStreamReader);

    this._stream = stream;
    this._reader = null;
    this._loaded = 0;
    this._filename = null;
    var source = stream.source;
    this._withCredentials = source.withCredentials || false;
    this._contentLength = source.length;
    this._headersCapability = (0, _util.createPromiseCapability)();
    this._disableRange = source.disableRange || false;
    this._rangeChunkSize = source.rangeChunkSize;

    if (!this._rangeChunkSize && !this._disableRange) {
      this._disableRange = true;
    }

    if (typeof AbortController !== 'undefined') {
      this._abortController = new AbortController();
    }

    this._isStreamingSupported = !source.disableStream;
    this._isRangeSupported = !source.disableRange;
    this._headers = new Headers();

    for (var property in this._stream.httpHeaders) {
      var value = this._stream.httpHeaders[property];

      if (typeof value === 'undefined') {
        continue;
      }

      this._headers.append(property, value);
    }

    var url = source.url;
    fetch(url, createFetchOptions(this._headers, this._withCredentials, this._abortController)).then(function (response) {
      if (!(0, _network_utils.validateResponseStatus)(response.status)) {
        throw (0, _network_utils.createResponseStatusError)(response.status, url);
      }

      _this._reader = response.body.getReader();

      _this._headersCapability.resolve();

      var getResponseHeader = function getResponseHeader(name) {
        return response.headers.get(name);
      };

      var _validateRangeRequest = (0, _network_utils.validateRangeRequestCapabilities)({
        getResponseHeader: getResponseHeader,
        isHttp: _this._stream.isHttp,
        rangeChunkSize: _this._rangeChunkSize,
        disableRange: _this._disableRange
      }),
          allowRangeRequests = _validateRangeRequest.allowRangeRequests,
          suggestedLength = _validateRangeRequest.suggestedLength;

      _this._isRangeSupported = allowRangeRequests;
      _this._contentLength = suggestedLength || _this._contentLength;
      _this._filename = (0, _network_utils.extractFilenameFromHeader)(getResponseHeader);

      if (!_this._isStreamingSupported && _this._isRangeSupported) {
        _this.cancel(new _util.AbortException('Streaming is disabled.'));
      }
    })["catch"](this._headersCapability.reject);
    this.onProgress = null;
  }

  _createClass(PDFFetchStreamReader, [{
    key: "read",
    value: function () {
      var _read = _asyncToGenerator(
      /*#__PURE__*/
      _regenerator["default"].mark(function _callee() {
        var _ref, value, done, buffer;

        return _regenerator["default"].wrap(function _callee$(_context) {
          while (1) {
            switch (_context.prev = _context.next) {
              case 0:
                _context.next = 2;
                return this._headersCapability.promise;

              case 2:
                _context.next = 4;
                return this._reader.read();

              case 4:
                _ref = _context.sent;
                value = _ref.value;
                done = _ref.done;

                if (!done) {
                  _context.next = 9;
                  break;
                }

                return _context.abrupt("return", {
                  value: value,
                  done: done
                });

              case 9:
                this._loaded += value.byteLength;

                if (this.onProgress) {
                  this.onProgress({
                    loaded: this._loaded,
                    total: this._contentLength
                  });
                }

                buffer = new Uint8Array(value).buffer;
                return _context.abrupt("return", {
                  value: buffer,
                  done: false
                });

              case 13:
              case "end":
                return _context.stop();
            }
          }
        }, _callee, this);
      }));

      function read() {
        return _read.apply(this, arguments);
      }

      return read;
    }()
  }, {
    key: "cancel",
    value: function cancel(reason) {
      if (this._reader) {
        this._reader.cancel(reason);
      }

      if (this._abortController) {
        this._abortController.abort();
      }
    }
  }, {
    key: "headersReady",
    get: function get() {
      return this._headersCapability.promise;
    }
  }, {
    key: "filename",
    get: function get() {
      return this._filename;
    }
  }, {
    key: "contentLength",
    get: function get() {
      return this._contentLength;
    }
  }, {
    key: "isRangeSupported",
    get: function get() {
      return this._isRangeSupported;
    }
  }, {
    key: "isStreamingSupported",
    get: function get() {
      return this._isStreamingSupported;
    }
  }]);

  return PDFFetchStreamReader;
}();

var PDFFetchStreamRangeReader =
/*#__PURE__*/
function () {
  function PDFFetchStreamRangeReader(stream, begin, end) {
    var _this2 = this;

    _classCallCheck(this, PDFFetchStreamRangeReader);

    this._stream = stream;
    this._reader = null;
    this._loaded = 0;
    var source = stream.source;
    this._withCredentials = source.withCredentials || false;
    this._readCapability = (0, _util.createPromiseCapability)();
    this._isStreamingSupported = !source.disableStream;

    if (typeof AbortController !== 'undefined') {
      this._abortController = new AbortController();
    }

    this._headers = new Headers();

    for (var property in this._stream.httpHeaders) {
      var value = this._stream.httpHeaders[property];

      if (typeof value === 'undefined') {
        continue;
      }

      this._headers.append(property, value);
    }

    this._headers.append('Range', "bytes=".concat(begin, "-").concat(end - 1));

    var url = source.url;
    fetch(url, createFetchOptions(this._headers, this._withCredentials, this._abortController)).then(function (response) {
      if (!(0, _network_utils.validateResponseStatus)(response.status)) {
        throw (0, _network_utils.createResponseStatusError)(response.status, url);
      }

      _this2._readCapability.resolve();

      _this2._reader = response.body.getReader();
    });
    this.onProgress = null;
  }

  _createClass(PDFFetchStreamRangeReader, [{
    key: "read",
    value: function () {
      var _read2 = _asyncToGenerator(
      /*#__PURE__*/
      _regenerator["default"].mark(function _callee2() {
        var _ref2, value, done, buffer;

        return _regenerator["default"].wrap(function _callee2$(_context2) {
          while (1) {
            switch (_context2.prev = _context2.next) {
              case 0:
                _context2.next = 2;
                return this._readCapability.promise;

              case 2:
                _context2.next = 4;
                return this._reader.read();

              case 4:
                _ref2 = _context2.sent;
                value = _ref2.value;
                done = _ref2.done;

                if (!done) {
                  _context2.next = 9;
                  break;
                }

                return _context2.abrupt("return", {
                  value: value,
                  done: done
                });

              case 9:
                this._loaded += value.byteLength;

                if (this.onProgress) {
                  this.onProgress({
                    loaded: this._loaded
                  });
                }

                buffer = new Uint8Array(value).buffer;
                return _context2.abrupt("return", {
                  value: buffer,
                  done: false
                });

              case 13:
              case "end":
                return _context2.stop();
            }
          }
        }, _callee2, this);
      }));

      function read() {
        return _read2.apply(this, arguments);
      }

      return read;
    }()
  }, {
    key: "cancel",
    value: function cancel(reason) {
      if (this._reader) {
        this._reader.cancel(reason);
      }

      if (this._abortController) {
        this._abortController.abort();
      }
    }
  }, {
    key: "isStreamingSupported",
    get: function get() {
      return this._isStreamingSupported;
    }
  }]);

  return PDFFetchStreamRangeReader;
}();

/***/ })
/******/ ]);
});
//# sourceMappingURL=pdf.js.map