Dette script bør ikke installeres direkte. Det er et bibliotek, som andre scripts kan inkludere med metadirektivet // @require https://update.greasyfork.org/scripts/510239/1454424/ViewerjsLib.js
- /*!
- * Viewer.js v1.11.6
- * https://fengyuanchen.github.io/viewerjs
- *
- * Copyright 2015-present Chen Fengyuan
- * Released under the MIT license
- *
- * Date: 2023-09-17T03:16:38.052Z
- */
-
- (function (global, factory) {
- typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
- typeof define === 'function' && define.amd ? define(factory) :
- (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.Viewer = factory());
- })(this, (function () { 'use strict';
-
- function ownKeys(e, r) {
- var t = Object.keys(e);
- if (Object.getOwnPropertySymbols) {
- var o = Object.getOwnPropertySymbols(e);
- r && (o = o.filter(function (r) {
- return Object.getOwnPropertyDescriptor(e, r).enumerable;
- })), t.push.apply(t, o);
- }
- return t;
- }
- function _objectSpread2(e) {
- for (var r = 1; r < arguments.length; r++) {
- var t = null != arguments[r] ? arguments[r] : {};
- r % 2 ? ownKeys(Object(t), !0).forEach(function (r) {
- _defineProperty(e, r, t[r]);
- }) : Object.getOwnPropertyDescriptors ? Object.defineProperties(e, Object.getOwnPropertyDescriptors(t)) : ownKeys(Object(t)).forEach(function (r) {
- Object.defineProperty(e, r, Object.getOwnPropertyDescriptor(t, r));
- });
- }
- return e;
- }
- function _typeof(o) {
- "@babel/helpers - typeof";
-
- return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) {
- return typeof o;
- } : function (o) {
- return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o;
- }, _typeof(o);
- }
- 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, _toPropertyKey(descriptor.key), descriptor);
- }
- }
- function _createClass(Constructor, protoProps, staticProps) {
- if (protoProps) _defineProperties(Constructor.prototype, protoProps);
- if (staticProps) _defineProperties(Constructor, staticProps);
- Object.defineProperty(Constructor, "prototype", {
- writable: false
- });
- return Constructor;
- }
- function _defineProperty(obj, key, value) {
- key = _toPropertyKey(key);
- if (key in obj) {
- Object.defineProperty(obj, key, {
- value: value,
- enumerable: true,
- configurable: true,
- writable: true
- });
- } else {
- obj[key] = value;
- }
- return obj;
- }
- function _toPrimitive(input, hint) {
- if (typeof input !== "object" || input === null) return input;
- var prim = input[Symbol.toPrimitive];
- if (prim !== undefined) {
- var res = prim.call(input, hint || "default");
- if (typeof res !== "object") return res;
- throw new TypeError("@@toPrimitive must return a primitive value.");
- }
- return (hint === "string" ? String : Number)(input);
- }
- function _toPropertyKey(arg) {
- var key = _toPrimitive(arg, "string");
- return typeof key === "symbol" ? key : String(key);
- }
-
- var DEFAULTS = {
- /**
- * Enable a modal backdrop, specify `static` for a backdrop
- * which doesn't close the modal on click.
- * @type {boolean}
- */
- backdrop: true,
- /**
- * Show the button on the top-right of the viewer.
- * @type {boolean}
- */
- button: true,
- /**
- * Show the navbar.
- * @type {boolean | number}
- */
- navbar: true,
- /**
- * Specify the visibility and the content of the title.
- * @type {boolean | number | Function | Array}
- */
- title: true,
- /**
- * Show the toolbar.
- * @type {boolean | number | Object}
- */
- toolbar: true,
- /**
- * Custom class name(s) to add to the viewer's root element.
- * @type {string}
- */
- className: '',
- /**
- * Define where to put the viewer in modal mode.
- * @type {string | Element}
- */
- container: 'body',
- /**
- * Filter the images for viewing. Return true if the image is viewable.
- * @type {Function}
- */
- filter: null,
- /**
- * Enable to request fullscreen when play.
- * {@link https://developer.mozilla.org/en-US/docs/Web/API/FullscreenOptions}
- * @type {boolean|FullscreenOptions}
- */
- fullscreen: true,
- /**
- * Define the extra attributes to inherit from the original image.
- * @type {Array}
- */
- inheritedAttributes: ['crossOrigin', 'decoding', 'isMap', 'loading', 'referrerPolicy', 'sizes', 'srcset', 'useMap'],
- /**
- * Define the initial coverage of the viewing image.
- * @type {number}
- */
- initialCoverage: 0.9,
- /**
- * Define the initial index of the image for viewing.
- * @type {number}
- */
- initialViewIndex: 0,
- /**
- * Enable inline mode.
- * @type {boolean}
- */
- inline: false,
- /**
- * The amount of time to delay between automatically cycling an image when playing.
- * @type {number}
- */
- interval: 5000,
- /**
- * Enable keyboard support.
- * @type {boolean}
- */
- keyboard: true,
- /**
- * Focus the viewer when initialized.
- * @type {boolean}
- */
- focus: true,
- /**
- * Indicate if show a loading spinner when load image or not.
- * @type {boolean}
- */
- loading: true,
- /**
- * Indicate if enable loop viewing or not.
- * @type {boolean}
- */
- loop: true,
- /**
- * Min width of the viewer in inline mode.
- * @type {number}
- */
- minWidth: 200,
- /**
- * Min height of the viewer in inline mode.
- * @type {number}
- */
- minHeight: 100,
- /**
- * Enable to move the image.
- * @type {boolean}
- */
- movable: true,
- /**
- * Enable to rotate the image.
- * @type {boolean}
- */
- rotatable: true,
- /**
- * Enable to scale the image.
- * @type {boolean}
- */
- scalable: true,
- /**
- * Enable to zoom the image.
- * @type {boolean}
- */
- zoomable: true,
- /**
- * Enable to zoom the current image by dragging on the touch screen.
- * @type {boolean}
- */
- zoomOnTouch: true,
- /**
- * Enable to zoom the image by wheeling mouse.
- * @type {boolean}
- */
- zoomOnWheel: true,
- /**
- * Enable to slide to the next or previous image by swiping on the touch screen.
- * @type {boolean}
- */
- slideOnTouch: true,
- /**
- * Indicate if toggle the image size between its natural size
- * and initial size when double click on the image or not.
- * @type {boolean}
- */
- toggleOnDblclick: true,
- /**
- * Show the tooltip with image ratio (percentage) when zoom in or zoom out.
- * @type {boolean}
- */
- tooltip: true,
- /**
- * Enable CSS3 Transition for some special elements.
- * @type {boolean}
- */
- transition: true,
- /**
- * Define the CSS `z-index` value of viewer in modal mode.
- * @type {number}
- */
- zIndex: 2015,
- /**
- * Define the CSS `z-index` value of viewer in inline mode.
- * @type {number}
- */
- zIndexInline: 0,
- /**
- * Define the ratio when zoom the image by wheeling mouse.
- * @type {number}
- */
- zoomRatio: 0.1,
- /**
- * Define the min ratio of the image when zoom out.
- * @type {number}
- */
- minZoomRatio: 0.01,
- /**
- * Define the max ratio of the image when zoom in.
- * @type {number}
- */
- maxZoomRatio: 100,
- /**
- * Define where to get the original image URL for viewing.
- * @type {string | Function}
- */
- url: 'src',
- /**
- * Event shortcuts.
- * @type {Function}
- */
- ready: null,
- show: null,
- shown: null,
- hide: null,
- hidden: null,
- view: null,
- viewed: null,
- move: null,
- moved: null,
- rotate: null,
- rotated: null,
- scale: null,
- scaled: null,
- zoom: null,
- zoomed: null,
- play: null,
- stop: null
- };
-
- var TEMPLATE = '<div class="viewer-container" tabindex="-1" touch-action="none">' + '<div class="viewer-canvas"></div>' + '<div class="viewer-footer">' + '<div class="viewer-title"></div>' + '<div class="viewer-toolbar"></div>' + '<div class="viewer-navbar">' + '<ul class="viewer-list" role="navigation"></ul>' + '</div>' + '</div>' + '<div class="viewer-tooltip" role="alert" aria-hidden="true"></div>' + '<div class="viewer-button" data-viewer-action="mix" role="button"></div>' + '<div class="viewer-player"></div>' + '</div>';
-
- var IS_BROWSER = typeof window !== 'undefined' && typeof window.document !== 'undefined';
- var WINDOW = IS_BROWSER ? window : {};
- var IS_TOUCH_DEVICE = IS_BROWSER && WINDOW.document.documentElement ? 'ontouchstart' in WINDOW.document.documentElement : false;
- var HAS_POINTER_EVENT = IS_BROWSER ? 'PointerEvent' in WINDOW : false;
- var NAMESPACE = 'viewer';
-
- // Actions
- var ACTION_MOVE = 'move';
- var ACTION_SWITCH = 'switch';
- var ACTION_ZOOM = 'zoom';
-
- // Classes
- var CLASS_ACTIVE = "".concat(NAMESPACE, "-active");
- var CLASS_CLOSE = "".concat(NAMESPACE, "-close");
- var CLASS_FADE = "".concat(NAMESPACE, "-fade");
- var CLASS_FIXED = "".concat(NAMESPACE, "-fixed");
- var CLASS_FULLSCREEN = "".concat(NAMESPACE, "-fullscreen");
- var CLASS_FULLSCREEN_EXIT = "".concat(NAMESPACE, "-fullscreen-exit");
- var CLASS_HIDE = "".concat(NAMESPACE, "-hide");
- var CLASS_HIDE_MD_DOWN = "".concat(NAMESPACE, "-hide-md-down");
- var CLASS_HIDE_SM_DOWN = "".concat(NAMESPACE, "-hide-sm-down");
- var CLASS_HIDE_XS_DOWN = "".concat(NAMESPACE, "-hide-xs-down");
- var CLASS_IN = "".concat(NAMESPACE, "-in");
- var CLASS_INVISIBLE = "".concat(NAMESPACE, "-invisible");
- var CLASS_LOADING = "".concat(NAMESPACE, "-loading");
- var CLASS_MOVE = "".concat(NAMESPACE, "-move");
- var CLASS_OPEN = "".concat(NAMESPACE, "-open");
- var CLASS_SHOW = "".concat(NAMESPACE, "-show");
- var CLASS_TRANSITION = "".concat(NAMESPACE, "-transition");
-
- // Native events
- var EVENT_CLICK = 'click';
- var EVENT_DBLCLICK = 'dblclick';
- var EVENT_DRAG_START = 'dragstart';
- var EVENT_FOCUSIN = 'focusin';
- var EVENT_KEY_DOWN = 'keydown';
- var EVENT_LOAD = 'load';
- var EVENT_ERROR = 'error';
- var EVENT_TOUCH_END = IS_TOUCH_DEVICE ? 'touchend touchcancel' : 'mouseup';
- var EVENT_TOUCH_MOVE = IS_TOUCH_DEVICE ? 'touchmove' : 'mousemove';
- var EVENT_TOUCH_START = IS_TOUCH_DEVICE ? 'touchstart' : 'mousedown';
- var EVENT_POINTER_DOWN = HAS_POINTER_EVENT ? 'pointerdown' : EVENT_TOUCH_START;
- var EVENT_POINTER_MOVE = HAS_POINTER_EVENT ? 'pointermove' : EVENT_TOUCH_MOVE;
- var EVENT_POINTER_UP = HAS_POINTER_EVENT ? 'pointerup pointercancel' : EVENT_TOUCH_END;
- var EVENT_RESIZE = 'resize';
- var EVENT_TRANSITION_END = 'transitionend';
- var EVENT_WHEEL = 'wheel';
-
- // Custom events
- var EVENT_READY = 'ready';
- var EVENT_SHOW = 'show';
- var EVENT_SHOWN = 'shown';
- var EVENT_HIDE = 'hide';
- var EVENT_HIDDEN = 'hidden';
- var EVENT_VIEW = 'view';
- var EVENT_VIEWED = 'viewed';
- var EVENT_MOVE = 'move';
- var EVENT_MOVED = 'moved';
- var EVENT_ROTATE = 'rotate';
- var EVENT_ROTATED = 'rotated';
- var EVENT_SCALE = 'scale';
- var EVENT_SCALED = 'scaled';
- var EVENT_ZOOM = 'zoom';
- var EVENT_ZOOMED = 'zoomed';
- var EVENT_PLAY = 'play';
- var EVENT_STOP = 'stop';
-
- // Data keys
- var DATA_ACTION = "".concat(NAMESPACE, "Action");
-
- // RegExps
- var REGEXP_SPACES = /\s\s*/;
-
- // Misc
- var BUTTONS = ['zoom-in', 'zoom-out', 'one-to-one', 'reset', 'prev', 'play', 'next', 'rotate-left', 'rotate-right', 'flip-horizontal', 'flip-vertical'];
-
- /**
- * Check if the given value is a string.
- * @param {*} value - The value to check.
- * @returns {boolean} Returns `true` if the given value is a string, else `false`.
- */
- function isString(value) {
- return typeof value === 'string';
- }
-
- /**
- * Check if the given value is not a number.
- */
- var isNaN = Number.isNaN || WINDOW.isNaN;
-
- /**
- * Check if the given value is a number.
- * @param {*} value - The value to check.
- * @returns {boolean} Returns `true` if the given value is a number, else `false`.
- */
- function isNumber(value) {
- return typeof value === 'number' && !isNaN(value);
- }
-
- /**
- * Check if the given value is undefined.
- * @param {*} value - The value to check.
- * @returns {boolean} Returns `true` if the given value is undefined, else `false`.
- */
- function isUndefined(value) {
- return typeof value === 'undefined';
- }
-
- /**
- * Check if the given value is an object.
- * @param {*} value - The value to check.
- * @returns {boolean} Returns `true` if the given value is an object, else `false`.
- */
- function isObject(value) {
- return _typeof(value) === 'object' && value !== null;
- }
- var hasOwnProperty = Object.prototype.hasOwnProperty;
-
- /**
- * Check if the given value is a plain object.
- * @param {*} value - The value to check.
- * @returns {boolean} Returns `true` if the given value is a plain object, else `false`.
- */
- function isPlainObject(value) {
- if (!isObject(value)) {
- return false;
- }
- try {
- var _constructor = value.constructor;
- var prototype = _constructor.prototype;
- return _constructor && prototype && hasOwnProperty.call(prototype, 'isPrototypeOf');
- } catch (error) {
- return false;
- }
- }
-
- /**
- * Check if the given value is a function.
- * @param {*} value - The value to check.
- * @returns {boolean} Returns `true` if the given value is a function, else `false`.
- */
- function isFunction(value) {
- return typeof value === 'function';
- }
-
- /**
- * Iterate the given data.
- * @param {*} data - The data to iterate.
- * @param {Function} callback - The process function for each element.
- * @returns {*} The original data.
- */
- function forEach(data, callback) {
- if (data && isFunction(callback)) {
- if (Array.isArray(data) || isNumber(data.length) /* array-like */) {
- var length = data.length;
- var i;
- for (i = 0; i < length; i += 1) {
- if (callback.call(data, data[i], i, data) === false) {
- break;
- }
- }
- } else if (isObject(data)) {
- Object.keys(data).forEach(function (key) {
- callback.call(data, data[key], key, data);
- });
- }
- }
- return data;
- }
-
- /**
- * Extend the given object.
- * @param {*} obj - The object to be extended.
- * @param {*} args - The rest objects which will be merged to the first object.
- * @returns {Object} The extended object.
- */
- var assign = Object.assign || function assign(obj) {
- for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
- args[_key - 1] = arguments[_key];
- }
- if (isObject(obj) && args.length > 0) {
- args.forEach(function (arg) {
- if (isObject(arg)) {
- Object.keys(arg).forEach(function (key) {
- obj[key] = arg[key];
- });
- }
- });
- }
- return obj;
- };
- var REGEXP_SUFFIX = /^(?:width|height|left|top|marginLeft|marginTop)$/;
-
- /**
- * Apply styles to the given element.
- * @param {Element} element - The target element.
- * @param {Object} styles - The styles for applying.
- */
- function setStyle(element, styles) {
- var style = element.style;
- forEach(styles, function (value, property) {
- if (REGEXP_SUFFIX.test(property) && isNumber(value)) {
- value += 'px';
- }
- style[property] = value;
- });
- }
-
- /**
- * Escape a string for using in HTML.
- * @param {String} value - The string to escape.
- * @returns {String} Returns the escaped string.
- */
- function escapeHTMLEntities(value) {
- return isString(value) ? value.replace(/&(?!amp;|quot;|#39;|lt;|gt;)/g, '&').replace(/"/g, '"').replace(/'/g, ''').replace(/</g, '<').replace(/>/g, '>') : value;
- }
-
- /**
- * Check if the given element has a special class.
- * @param {Element} element - The element to check.
- * @param {string} value - The class to search.
- * @returns {boolean} Returns `true` if the special class was found.
- */
- function hasClass(element, value) {
- if (!element || !value) {
- return false;
- }
- return element.classList ? element.classList.contains(value) : element.className.indexOf(value) > -1;
- }
-
- /**
- * Add classes to the given element.
- * @param {Element} element - The target element.
- * @param {string} value - The classes to be added.
- */
- function addClass(element, value) {
- if (!element || !value) {
- return;
- }
- if (isNumber(element.length)) {
- forEach(element, function (elem) {
- addClass(elem, value);
- });
- return;
- }
- if (element.classList) {
- element.classList.add(value);
- return;
- }
- var className = element.className.trim();
- if (!className) {
- element.className = value;
- } else if (className.indexOf(value) < 0) {
- element.className = "".concat(className, " ").concat(value);
- }
- }
-
- /**
- * Remove classes from the given element.
- * @param {Element} element - The target element.
- * @param {string} value - The classes to be removed.
- */
- function removeClass(element, value) {
- if (!element || !value) {
- return;
- }
- if (isNumber(element.length)) {
- forEach(element, function (elem) {
- removeClass(elem, value);
- });
- return;
- }
- if (element.classList) {
- element.classList.remove(value);
- return;
- }
- if (element.className.indexOf(value) >= 0) {
- element.className = element.className.replace(value, '');
- }
- }
-
- /**
- * Add or remove classes from the given element.
- * @param {Element} element - The target element.
- * @param {string} value - The classes to be toggled.
- * @param {boolean} added - Add only.
- */
- function toggleClass(element, value, added) {
- if (!value) {
- return;
- }
- if (isNumber(element.length)) {
- forEach(element, function (elem) {
- toggleClass(elem, value, added);
- });
- return;
- }
-
- // IE10-11 doesn't support the second parameter of `classList.toggle`
- if (added) {
- addClass(element, value);
- } else {
- removeClass(element, value);
- }
- }
- var REGEXP_HYPHENATE = /([a-z\d])([A-Z])/g;
-
- /**
- * Transform the given string from camelCase to kebab-case
- * @param {string} value - The value to transform.
- * @returns {string} The transformed value.
- */
- function hyphenate(value) {
- return value.replace(REGEXP_HYPHENATE, '$1-$2').toLowerCase();
- }
-
- /**
- * Get data from the given element.
- * @param {Element} element - The target element.
- * @param {string} name - The data key to get.
- * @returns {string} The data value.
- */
- function getData(element, name) {
- if (isObject(element[name])) {
- return element[name];
- }
- if (element.dataset) {
- return element.dataset[name];
- }
- return element.getAttribute("data-".concat(hyphenate(name)));
- }
-
- /**
- * Set data to the given element.
- * @param {Element} element - The target element.
- * @param {string} name - The data key to set.
- * @param {string} data - The data value.
- */
- function setData(element, name, data) {
- if (isObject(data)) {
- element[name] = data;
- } else if (element.dataset) {
- element.dataset[name] = data;
- } else {
- element.setAttribute("data-".concat(hyphenate(name)), data);
- }
- }
- var onceSupported = function () {
- var supported = false;
- if (IS_BROWSER) {
- var once = false;
- var listener = function listener() {};
- var options = Object.defineProperty({}, 'once', {
- get: function get() {
- supported = true;
- return once;
- },
- /**
- * This setter can fix a `TypeError` in strict mode
- * {@link https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Errors/Getter_only}
- * @param {boolean} value - The value to set
- */
- set: function set(value) {
- once = value;
- }
- });
- WINDOW.addEventListener('test', listener, options);
- WINDOW.removeEventListener('test', listener, options);
- }
- return supported;
- }();
-
- /**
- * Remove event listener from the target element.
- * @param {Element} element - The event target.
- * @param {string} type - The event type(s).
- * @param {Function} listener - The event listener.
- * @param {Object} options - The event options.
- */
- function removeListener(element, type, listener) {
- var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
- var handler = listener;
- type.trim().split(REGEXP_SPACES).forEach(function (event) {
- if (!onceSupported) {
- var listeners = element.listeners;
- if (listeners && listeners[event] && listeners[event][listener]) {
- handler = listeners[event][listener];
- delete listeners[event][listener];
- if (Object.keys(listeners[event]).length === 0) {
- delete listeners[event];
- }
- if (Object.keys(listeners).length === 0) {
- delete element.listeners;
- }
- }
- }
- element.removeEventListener(event, handler, options);
- });
- }
-
- /**
- * Add event listener to the target element.
- * @param {Element} element - The event target.
- * @param {string} type - The event type(s).
- * @param {Function} listener - The event listener.
- * @param {Object} options - The event options.
- */
- function addListener(element, type, listener) {
- var options = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
- var _handler = listener;
- type.trim().split(REGEXP_SPACES).forEach(function (event) {
- if (options.once && !onceSupported) {
- var _element$listeners = element.listeners,
- listeners = _element$listeners === void 0 ? {} : _element$listeners;
- _handler = function handler() {
- delete listeners[event][listener];
- element.removeEventListener(event, _handler, options);
- for (var _len2 = arguments.length, args = new Array(_len2), _key2 = 0; _key2 < _len2; _key2++) {
- args[_key2] = arguments[_key2];
- }
- listener.apply(element, args);
- };
- if (!listeners[event]) {
- listeners[event] = {};
- }
- if (listeners[event][listener]) {
- element.removeEventListener(event, listeners[event][listener], options);
- }
- listeners[event][listener] = _handler;
- element.listeners = listeners;
- }
- element.addEventListener(event, _handler, options);
- });
- }
-
- /**
- * Dispatch event on the target element.
- * @param {Element} element - The event target.
- * @param {string} type - The event type(s).
- * @param {Object} data - The additional event data.
- * @param {Object} options - The additional event options.
- * @returns {boolean} Indicate if the event is default prevented or not.
- */
- function dispatchEvent(element, type, data, options) {
- var event;
-
- // Event and CustomEvent on IE9-11 are global objects, not constructors
- if (isFunction(Event) && isFunction(CustomEvent)) {
- event = new CustomEvent(type, _objectSpread2({
- bubbles: true,
- cancelable: true,
- detail: data
- }, options));
- } else {
- event = document.createEvent('CustomEvent');
- event.initCustomEvent(type, true, true, data);
- }
- return element.dispatchEvent(event);
- }
-
- /**
- * Get the offset base on the document.
- * @param {Element} element - The target element.
- * @returns {Object} The offset data.
- */
- function getOffset(element) {
- var box = element.getBoundingClientRect();
- return {
- left: box.left + (window.pageXOffset - document.documentElement.clientLeft),
- top: box.top + (window.pageYOffset - document.documentElement.clientTop)
- };
- }
-
- /**
- * Get transforms base on the given object.
- * @param {Object} obj - The target object.
- * @returns {string} A string contains transform values.
- */
- function getTransforms(_ref) {
- var rotate = _ref.rotate,
- scaleX = _ref.scaleX,
- scaleY = _ref.scaleY,
- translateX = _ref.translateX,
- translateY = _ref.translateY;
- var values = [];
- if (isNumber(translateX) && translateX !== 0) {
- values.push("translateX(".concat(translateX, "px)"));
- }
- if (isNumber(translateY) && translateY !== 0) {
- values.push("translateY(".concat(translateY, "px)"));
- }
-
- // Rotate should come first before scale to match orientation transform
- if (isNumber(rotate) && rotate !== 0) {
- values.push("rotate(".concat(rotate, "deg)"));
- }
- if (isNumber(scaleX) && scaleX !== 1) {
- values.push("scaleX(".concat(scaleX, ")"));
- }
- if (isNumber(scaleY) && scaleY !== 1) {
- values.push("scaleY(".concat(scaleY, ")"));
- }
- var transform = values.length ? values.join(' ') : 'none';
- return {
- WebkitTransform: transform,
- msTransform: transform,
- transform: transform
- };
- }
-
- /**
- * Get an image name from an image url.
- * @param {string} url - The target url.
- * @example
- * // picture.jpg
- * getImageNameFromURL('https://domain.com/path/to/picture.jpg?size=1280×960')
- * @returns {string} A string contains the image name.
- */
- function getImageNameFromURL(url) {
- return isString(url) ? decodeURIComponent(url.replace(/^.*\//, '').replace(/[?&#].*$/, '')) : '';
- }
- var IS_SAFARI = WINDOW.navigator && /Version\/\d+(\.\d+)+?\s+Safari/i.test(WINDOW.navigator.userAgent);
-
- /**
- * Get an image's natural sizes.
- * @param {string} image - The target image.
- * @param {Object} options - The viewer options.
- * @param {Function} callback - The callback function.
- * @returns {HTMLImageElement} The new image.
- */
- function getImageNaturalSizes(image, options, callback) {
- var newImage = document.createElement('img');
-
- // Modern browsers (except Safari)
- if (image.naturalWidth && !IS_SAFARI) {
- callback(image.naturalWidth, image.naturalHeight);
- return newImage;
- }
- var body = document.body || document.documentElement;
- newImage.onload = function () {
- callback(newImage.width, newImage.height);
- if (!IS_SAFARI) {
- body.removeChild(newImage);
- }
- };
- forEach(options.inheritedAttributes, function (name) {
- var value = image.getAttribute(name);
- if (value !== null) {
- newImage.setAttribute(name, value);
- }
- });
- newImage.src = image.src;
-
- // iOS Safari will convert the image automatically
- // with its orientation once append it into DOM
- if (!IS_SAFARI) {
- newImage.style.cssText = 'left:0;' + 'max-height:none!important;' + 'max-width:none!important;' + 'min-height:0!important;' + 'min-width:0!important;' + 'opacity:0;' + 'position:absolute;' + 'top:0;' + 'z-index:-1;';
- body.appendChild(newImage);
- }
- return newImage;
- }
-
- /**
- * Get the related class name of a responsive type number.
- * @param {string} type - The responsive type.
- * @returns {string} The related class name.
- */
- function getResponsiveClass(type) {
- switch (type) {
- case 2:
- return CLASS_HIDE_XS_DOWN;
- case 3:
- return CLASS_HIDE_SM_DOWN;
- case 4:
- return CLASS_HIDE_MD_DOWN;
- default:
- return '';
- }
- }
-
- /**
- * Get the max ratio of a group of pointers.
- * @param {string} pointers - The target pointers.
- * @returns {number} The result ratio.
- */
- function getMaxZoomRatio(pointers) {
- var pointers2 = _objectSpread2({}, pointers);
- var ratios = [];
- forEach(pointers, function (pointer, pointerId) {
- delete pointers2[pointerId];
- forEach(pointers2, function (pointer2) {
- var x1 = Math.abs(pointer.startX - pointer2.startX);
- var y1 = Math.abs(pointer.startY - pointer2.startY);
- var x2 = Math.abs(pointer.endX - pointer2.endX);
- var y2 = Math.abs(pointer.endY - pointer2.endY);
- var z1 = Math.sqrt(x1 * x1 + y1 * y1);
- var z2 = Math.sqrt(x2 * x2 + y2 * y2);
- var ratio = (z2 - z1) / z1;
- ratios.push(ratio);
- });
- });
- ratios.sort(function (a, b) {
- return Math.abs(a) < Math.abs(b);
- });
- return ratios[0];
- }
-
- /**
- * Get a pointer from an event object.
- * @param {Object} event - The target event object.
- * @param {boolean} endOnly - Indicates if only returns the end point coordinate or not.
- * @returns {Object} The result pointer contains start and/or end point coordinates.
- */
- function getPointer(_ref2, endOnly) {
- var pageX = _ref2.pageX,
- pageY = _ref2.pageY;
- var end = {
- endX: pageX,
- endY: pageY
- };
- return endOnly ? end : _objectSpread2({
- timeStamp: Date.now(),
- startX: pageX,
- startY: pageY
- }, end);
- }
-
- /**
- * Get the center point coordinate of a group of pointers.
- * @param {Object} pointers - The target pointers.
- * @returns {Object} The center point coordinate.
- */
- function getPointersCenter(pointers) {
- var pageX = 0;
- var pageY = 0;
- var count = 0;
- forEach(pointers, function (_ref3) {
- var startX = _ref3.startX,
- startY = _ref3.startY;
- pageX += startX;
- pageY += startY;
- count += 1;
- });
- pageX /= count;
- pageY /= count;
- return {
- pageX: pageX,
- pageY: pageY
- };
- }
-
- var render = {
- render: function render() {
- this.initContainer();
- this.initViewer();
- this.initList();
- this.renderViewer();
- },
- initBody: function initBody() {
- var ownerDocument = this.element.ownerDocument;
- var body = ownerDocument.body || ownerDocument.documentElement;
- this.body = body;
- this.scrollbarWidth = window.innerWidth - ownerDocument.documentElement.clientWidth;
- this.initialBodyPaddingRight = body.style.paddingRight;
- this.initialBodyComputedPaddingRight = window.getComputedStyle(body).paddingRight;
- },
- initContainer: function initContainer() {
- this.containerData = {
- width: window.innerWidth,
- height: window.innerHeight
- };
- },
- initViewer: function initViewer() {
- var options = this.options,
- parent = this.parent;
- var viewerData;
- if (options.inline) {
- viewerData = {
- width: Math.max(parent.offsetWidth, options.minWidth),
- height: Math.max(parent.offsetHeight, options.minHeight)
- };
- this.parentData = viewerData;
- }
- if (this.fulled || !viewerData) {
- viewerData = this.containerData;
- }
- this.viewerData = assign({}, viewerData);
- },
- renderViewer: function renderViewer() {
- if (this.options.inline && !this.fulled) {
- setStyle(this.viewer, this.viewerData);
- }
- },
- initList: function initList() {
- var _this = this;
- var element = this.element,
- options = this.options,
- list = this.list;
- var items = [];
-
- // initList may be called in this.update, so should keep idempotent
- list.innerHTML = '';
- forEach(this.images, function (image, index) {
- var src = image.src;
- var alt = image.alt || getImageNameFromURL(src);
- var url = _this.getImageURL(image);
- if (src || url) {
- var item = document.createElement('li');
- var img = document.createElement('img');
- forEach(options.inheritedAttributes, function (name) {
- var value = image.getAttribute(name);
- if (value !== null) {
- img.setAttribute(name, value);
- }
- });
- if (options.navbar) {
- img.src = src || url;
- }
- img.alt = alt;
- img.setAttribute('data-original-url', url || src);
- item.setAttribute('data-index', index);
- item.setAttribute('data-viewer-action', 'view');
- item.setAttribute('role', 'button');
- if (options.keyboard) {
- item.setAttribute('tabindex', 0);
- }
- item.appendChild(img);
- list.appendChild(item);
- items.push(item);
- }
- });
- this.items = items;
- forEach(items, function (item) {
- var image = item.firstElementChild;
- var onLoad;
- var onError;
- setData(image, 'filled', true);
- if (options.loading) {
- addClass(item, CLASS_LOADING);
- }
- addListener(image, EVENT_LOAD, onLoad = function onLoad(event) {
- removeListener(image, EVENT_ERROR, onError);
- if (options.loading) {
- removeClass(item, CLASS_LOADING);
- }
- _this.loadImage(event);
- }, {
- once: true
- });
- addListener(image, EVENT_ERROR, onError = function onError() {
- removeListener(image, EVENT_LOAD, onLoad);
- if (options.loading) {
- removeClass(item, CLASS_LOADING);
- }
- }, {
- once: true
- });
- });
- if (options.transition) {
- addListener(element, EVENT_VIEWED, function () {
- addClass(list, CLASS_TRANSITION);
- }, {
- once: true
- });
- }
- },
- renderList: function renderList() {
- var index = this.index;
- var item = this.items[index];
- if (!item) {
- return;
- }
- var next = item.nextElementSibling;
- var gutter = parseInt(window.getComputedStyle(next || item).marginLeft, 10);
- var offsetWidth = item.offsetWidth;
- var outerWidth = offsetWidth + gutter;
-
- // Place the active item in the center of the screen
- setStyle(this.list, assign({
- width: outerWidth * this.length - gutter
- }, getTransforms({
- translateX: (this.viewerData.width - offsetWidth) / 2 - outerWidth * index
- })));
- },
- resetList: function resetList() {
- var list = this.list;
- list.innerHTML = '';
- removeClass(list, CLASS_TRANSITION);
- setStyle(list, getTransforms({
- translateX: 0
- }));
- },
- initImage: function initImage(done) {
- var _this2 = this;
- var options = this.options,
- image = this.image,
- viewerData = this.viewerData;
- var footerHeight = this.footer.offsetHeight;
- var viewerWidth = viewerData.width;
- var viewerHeight = Math.max(viewerData.height - footerHeight, footerHeight);
- var oldImageData = this.imageData || {};
- var sizingImage;
- this.imageInitializing = {
- abort: function abort() {
- sizingImage.onload = null;
- }
- };
- sizingImage = getImageNaturalSizes(image, options, function (naturalWidth, naturalHeight) {
- var aspectRatio = naturalWidth / naturalHeight;
- var initialCoverage = Math.max(0, Math.min(1, options.initialCoverage));
- var width = viewerWidth;
- var height = viewerHeight;
- _this2.imageInitializing = false;
- if (viewerHeight * aspectRatio > viewerWidth) {
- height = viewerWidth / aspectRatio;
- } else {
- width = viewerHeight * aspectRatio;
- }
- initialCoverage = isNumber(initialCoverage) ? initialCoverage : 0.9;
- width = Math.min(width * initialCoverage, naturalWidth);
- height = Math.min(height * initialCoverage, naturalHeight);
- var left = (viewerWidth - width) / 2;
- var top = (viewerHeight - height) / 2;
- var imageData = {
- left: left,
- top: top,
- x: left,
- y: top,
- width: width,
- height: height,
- oldRatio: 1,
- ratio: width / naturalWidth,
- aspectRatio: aspectRatio,
- naturalWidth: naturalWidth,
- naturalHeight: naturalHeight
- };
- var initialImageData = assign({}, imageData);
- if (options.rotatable) {
- imageData.rotate = oldImageData.rotate || 0;
- initialImageData.rotate = 0;
- }
- if (options.scalable) {
- imageData.scaleX = oldImageData.scaleX || 1;
- imageData.scaleY = oldImageData.scaleY || 1;
- initialImageData.scaleX = 1;
- initialImageData.scaleY = 1;
- }
- _this2.imageData = imageData;
- _this2.initialImageData = initialImageData;
- if (done) {
- done();
- }
- });
- },
- renderImage: function renderImage(done) {
- var _this3 = this;
- var image = this.image,
- imageData = this.imageData;
- setStyle(image, assign({
- width: imageData.width,
- height: imageData.height,
- // XXX: Not to use translateX/Y to avoid image shaking when zooming
- marginLeft: imageData.x,
- marginTop: imageData.y
- }, getTransforms(imageData)));
- if (done) {
- if ((this.viewing || this.moving || this.rotating || this.scaling || this.zooming) && this.options.transition && hasClass(image, CLASS_TRANSITION)) {
- var onTransitionEnd = function onTransitionEnd() {
- _this3.imageRendering = false;
- done();
- };
- this.imageRendering = {
- abort: function abort() {
- removeListener(image, EVENT_TRANSITION_END, onTransitionEnd);
- }
- };
- addListener(image, EVENT_TRANSITION_END, onTransitionEnd, {
- once: true
- });
- } else {
- done();
- }
- }
- },
- resetImage: function resetImage() {
- var image = this.image;
- if (image) {
- if (this.viewing) {
- this.viewing.abort();
- }
- image.parentNode.removeChild(image);
- this.image = null;
- this.title.innerHTML = '';
- }
- }
- };
-
- var events = {
- bind: function bind() {
- var options = this.options,
- viewer = this.viewer,
- canvas = this.canvas;
- var document = this.element.ownerDocument;
- addListener(viewer, EVENT_CLICK, this.onClick = this.click.bind(this));
- addListener(viewer, EVENT_DRAG_START, this.onDragStart = this.dragstart.bind(this));
- addListener(canvas, EVENT_POINTER_DOWN, this.onPointerDown = this.pointerdown.bind(this));
- addListener(document, EVENT_POINTER_MOVE, this.onPointerMove = this.pointermove.bind(this));
- addListener(document, EVENT_POINTER_UP, this.onPointerUp = this.pointerup.bind(this));
- addListener(document, EVENT_KEY_DOWN, this.onKeyDown = this.keydown.bind(this));
- addListener(window, EVENT_RESIZE, this.onResize = this.resize.bind(this));
- if (options.zoomable && options.zoomOnWheel) {
- addListener(viewer, EVENT_WHEEL, this.onWheel = this.wheel.bind(this), {
- passive: false,
- capture: true
- });
- }
- if (options.toggleOnDblclick) {
- addListener(canvas, EVENT_DBLCLICK, this.onDblclick = this.dblclick.bind(this));
- }
- },
- unbind: function unbind() {
- var options = this.options,
- viewer = this.viewer,
- canvas = this.canvas;
- var document = this.element.ownerDocument;
- removeListener(viewer, EVENT_CLICK, this.onClick);
- removeListener(viewer, EVENT_DRAG_START, this.onDragStart);
- removeListener(canvas, EVENT_POINTER_DOWN, this.onPointerDown);
- removeListener(document, EVENT_POINTER_MOVE, this.onPointerMove);
- removeListener(document, EVENT_POINTER_UP, this.onPointerUp);
- removeListener(document, EVENT_KEY_DOWN, this.onKeyDown);
- removeListener(window, EVENT_RESIZE, this.onResize);
- if (options.zoomable && options.zoomOnWheel) {
- removeListener(viewer, EVENT_WHEEL, this.onWheel, {
- passive: false,
- capture: true
- });
- }
- if (options.toggleOnDblclick) {
- removeListener(canvas, EVENT_DBLCLICK, this.onDblclick);
- }
- }
- };
-
- var handlers = {
- click: function click(event) {
- var options = this.options,
- imageData = this.imageData;
- var target = event.target;
- var action = getData(target, DATA_ACTION);
- if (!action && target.localName === 'img' && target.parentElement.localName === 'li') {
- target = target.parentElement;
- action = getData(target, DATA_ACTION);
- }
-
- // Cancel the emulated click when the native click event was triggered.
- if (IS_TOUCH_DEVICE && event.isTrusted && target === this.canvas) {
- clearTimeout(this.clickCanvasTimeout);
- }
- switch (action) {
- case 'mix':
- if (this.played) {
- this.stop();
- } else if (options.inline) {
- if (this.fulled) {
- this.exit();
- } else {
- this.full();
- }
- } else {
- this.hide();
- }
- break;
- case 'hide':
- if (!this.pointerMoved) {
- this.hide();
- }
- break;
- case 'view':
- this.view(getData(target, 'index'));
- break;
- case 'zoom-in':
- this.zoom(0.1, true);
- break;
- case 'zoom-out':
- this.zoom(-0.1, true);
- break;
- case 'one-to-one':
- this.toggle();
- break;
- case 'reset':
- this.reset();
- break;
- case 'prev':
- this.prev(options.loop);
- break;
- case 'play':
- this.play(options.fullscreen);
- break;
- case 'next':
- this.next(options.loop);
- break;
- case 'rotate-left':
- this.rotate(-90);
- break;
- case 'rotate-right':
- this.rotate(90);
- break;
- case 'flip-horizontal':
- this.scaleX(-imageData.scaleX || -1);
- break;
- case 'flip-vertical':
- this.scaleY(-imageData.scaleY || -1);
- break;
- default:
- if (this.played) {
- this.stop();
- }
- }
- },
- dblclick: function dblclick(event) {
- event.preventDefault();
- if (this.viewed && event.target === this.image) {
- // Cancel the emulated double click when the native dblclick event was triggered.
- if (IS_TOUCH_DEVICE && event.isTrusted) {
- clearTimeout(this.doubleClickImageTimeout);
- }
-
- // XXX: No pageX/Y properties in custom event, fallback to the original event.
- this.toggle(event.isTrusted ? event : event.detail && event.detail.originalEvent);
- }
- },
- load: function load() {
- var _this = this;
- if (this.timeout) {
- clearTimeout(this.timeout);
- this.timeout = false;
- }
- var element = this.element,
- options = this.options,
- image = this.image,
- index = this.index,
- viewerData = this.viewerData;
- removeClass(image, CLASS_INVISIBLE);
- if (options.loading) {
- removeClass(this.canvas, CLASS_LOADING);
- }
- image.style.cssText = 'height:0;' + "margin-left:".concat(viewerData.width / 2, "px;") + "margin-top:".concat(viewerData.height / 2, "px;") + 'max-width:none!important;' + 'position:relative;' + 'width:0;';
- this.initImage(function () {
- toggleClass(image, CLASS_MOVE, options.movable);
- toggleClass(image, CLASS_TRANSITION, options.transition);
- _this.renderImage(function () {
- _this.viewed = true;
- _this.viewing = false;
- if (isFunction(options.viewed)) {
- addListener(element, EVENT_VIEWED, options.viewed, {
- once: true
- });
- }
- dispatchEvent(element, EVENT_VIEWED, {
- originalImage: _this.images[index],
- index: index,
- image: image
- }, {
- cancelable: false
- });
- });
- });
- },
- loadImage: function loadImage(event) {
- var image = event.target;
- var parent = image.parentNode;
- var parentWidth = parent.offsetWidth || 30;
- var parentHeight = parent.offsetHeight || 50;
- var filled = !!getData(image, 'filled');
- getImageNaturalSizes(image, this.options, function (naturalWidth, naturalHeight) {
- var aspectRatio = naturalWidth / naturalHeight;
- var width = parentWidth;
- var height = parentHeight;
- if (parentHeight * aspectRatio > parentWidth) {
- if (filled) {
- width = parentHeight * aspectRatio;
- } else {
- height = parentWidth / aspectRatio;
- }
- } else if (filled) {
- height = parentWidth / aspectRatio;
- } else {
- width = parentHeight * aspectRatio;
- }
- setStyle(image, assign({
- width: width,
- height: height
- }, getTransforms({
- translateX: (parentWidth - width) / 2,
- translateY: (parentHeight - height) / 2
- })));
- });
- },
- keydown: function keydown(event) {
- var options = this.options;
- if (!options.keyboard) {
- return;
- }
- var keyCode = event.keyCode || event.which || event.charCode;
- switch (keyCode) {
- // Enter
- case 13:
- if (this.viewer.contains(event.target)) {
- this.click(event);
- }
- break;
- }
- if (!this.fulled) {
- return;
- }
- switch (keyCode) {
- // Escape
- case 27:
- if (this.played) {
- this.stop();
- } else if (options.inline) {
- if (this.fulled) {
- this.exit();
- }
- } else {
- this.hide();
- }
- break;
-
- // Space
- case 32:
- if (this.played) {
- this.stop();
- }
- break;
-
- // ArrowLeft
- case 37:
- if (this.played && this.playing) {
- this.playing.prev();
- } else {
- this.prev(options.loop);
- }
- break;
-
- // ArrowUp
- case 38:
- // Prevent scroll on Firefox
- event.preventDefault();
-
- // Zoom in
- this.zoom(options.zoomRatio, true);
- break;
-
- // ArrowRight
- case 39:
- if (this.played && this.playing) {
- this.playing.next();
- } else {
- this.next(options.loop);
- }
- break;
-
- // ArrowDown
- case 40:
- // Prevent scroll on Firefox
- event.preventDefault();
-
- // Zoom out
- this.zoom(-options.zoomRatio, true);
- break;
-
- // Ctrl + 0
- case 48:
- // Fall through
-
- // Ctrl + 1
- // eslint-disable-next-line no-fallthrough
- case 49:
- if (event.ctrlKey) {
- event.preventDefault();
- this.toggle();
- }
- break;
- }
- },
- dragstart: function dragstart(event) {
- if (event.target.localName === 'img') {
- event.preventDefault();
- }
- },
- pointerdown: function pointerdown(event) {
- var options = this.options,
- pointers = this.pointers;
- var buttons = event.buttons,
- button = event.button;
- this.pointerMoved = false;
- if (!this.viewed || this.showing || this.viewing || this.hiding
-
- // Handle mouse event and pointer event and ignore touch event
- || (event.type === 'mousedown' || event.type === 'pointerdown' && event.pointerType === 'mouse') && (
- // No primary button (Usually the left button)
- isNumber(buttons) && buttons !== 1 || isNumber(button) && button !== 0
-
- // Open context menu
- || event.ctrlKey)) {
- return;
- }
-
- // Prevent default behaviours as page zooming in touch devices.
- event.preventDefault();
- if (event.changedTouches) {
- forEach(event.changedTouches, function (touch) {
- pointers[touch.identifier] = getPointer(touch);
- });
- } else {
- pointers[event.pointerId || 0] = getPointer(event);
- }
- var action = options.movable ? ACTION_MOVE : false;
- if (options.zoomOnTouch && options.zoomable && Object.keys(pointers).length > 1) {
- action = ACTION_ZOOM;
- } else if (options.slideOnTouch && (event.pointerType === 'touch' || event.type === 'touchstart') && this.isSwitchable()) {
- action = ACTION_SWITCH;
- }
- if (options.transition && (action === ACTION_MOVE || action === ACTION_ZOOM)) {
- removeClass(this.image, CLASS_TRANSITION);
- }
- this.action = action;
- },
- pointermove: function pointermove(event) {
- var pointers = this.pointers,
- action = this.action;
- if (!this.viewed || !action) {
- return;
- }
- event.preventDefault();
- if (event.changedTouches) {
- forEach(event.changedTouches, function (touch) {
- assign(pointers[touch.identifier] || {}, getPointer(touch, true));
- });
- } else {
- assign(pointers[event.pointerId || 0] || {}, getPointer(event, true));
- }
- this.change(event);
- },
- pointerup: function pointerup(event) {
- var _this2 = this;
- var options = this.options,
- action = this.action,
- pointers = this.pointers;
- var pointer;
- if (event.changedTouches) {
- forEach(event.changedTouches, function (touch) {
- pointer = pointers[touch.identifier];
- delete pointers[touch.identifier];
- });
- } else {
- pointer = pointers[event.pointerId || 0];
- delete pointers[event.pointerId || 0];
- }
- if (!action) {
- return;
- }
- event.preventDefault();
- if (options.transition && (action === ACTION_MOVE || action === ACTION_ZOOM)) {
- addClass(this.image, CLASS_TRANSITION);
- }
- this.action = false;
-
- // Emulate click and double click in touch devices to support backdrop and image zooming (#210).
- if (IS_TOUCH_DEVICE && action !== ACTION_ZOOM && pointer && Date.now() - pointer.timeStamp < 500) {
- clearTimeout(this.clickCanvasTimeout);
- clearTimeout(this.doubleClickImageTimeout);
- if (options.toggleOnDblclick && this.viewed && event.target === this.image) {
- if (this.imageClicked) {
- this.imageClicked = false;
-
- // This timeout will be cleared later when a native dblclick event is triggering
- this.doubleClickImageTimeout = setTimeout(function () {
- dispatchEvent(_this2.image, EVENT_DBLCLICK, {
- originalEvent: event
- });
- }, 50);
- } else {
- this.imageClicked = true;
-
- // The default timing of a double click in Windows is 500 ms
- this.doubleClickImageTimeout = setTimeout(function () {
- _this2.imageClicked = false;
- }, 500);
- }
- } else {
- this.imageClicked = false;
- if (options.backdrop && options.backdrop !== 'static' && event.target === this.canvas) {
- // This timeout will be cleared later when a native click event is triggering
- this.clickCanvasTimeout = setTimeout(function () {
- dispatchEvent(_this2.canvas, EVENT_CLICK, {
- originalEvent: event
- });
- }, 50);
- }
- }
- }
- },
- resize: function resize() {
- var _this3 = this;
- if (!this.isShown || this.hiding) {
- return;
- }
- if (this.fulled) {
- this.close();
- this.initBody();
- this.open();
- }
- this.initContainer();
- this.initViewer();
- this.renderViewer();
- this.renderList();
- if (this.viewed) {
- this.initImage(function () {
- _this3.renderImage();
- });
- }
- if (this.played) {
- if (this.options.fullscreen && this.fulled && !(document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement)) {
- this.stop();
- return;
- }
- forEach(this.player.getElementsByTagName('img'), function (image) {
- addListener(image, EVENT_LOAD, _this3.loadImage.bind(_this3), {
- once: true
- });
- dispatchEvent(image, EVENT_LOAD);
- });
- }
- },
- wheel: function wheel(event) {
- var _this4 = this;
- if (!this.viewed) {
- return;
- }
- event.preventDefault();
-
- // Limit wheel speed to prevent zoom too fast
- if (this.wheeling) {
- return;
- }
- this.wheeling = true;
- setTimeout(function () {
- _this4.wheeling = false;
- }, 50);
- var ratio = Number(this.options.zoomRatio) || 0.1;
- var delta = 1;
- if (event.deltaY) {
- delta = event.deltaY > 0 ? 1 : -1;
- } else if (event.wheelDelta) {
- delta = -event.wheelDelta / 120;
- } else if (event.detail) {
- delta = event.detail > 0 ? 1 : -1;
- }
- this.zoom(-delta * ratio, true, null, event);
- }
- };
-
- var methods = {
- /** Show the viewer (only available in modal mode)
- * @param {boolean} [immediate=false] - Indicates if show the viewer immediately or not.
- * @returns {Viewer} this
- */
- show: function show() {
- var immediate = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
- var element = this.element,
- options = this.options;
- if (options.inline || this.showing || this.isShown || this.showing) {
- return this;
- }
- if (!this.ready) {
- this.build();
- if (this.ready) {
- this.show(immediate);
- }
- return this;
- }
- if (isFunction(options.show)) {
- addListener(element, EVENT_SHOW, options.show, {
- once: true
- });
- }
- if (dispatchEvent(element, EVENT_SHOW) === false || !this.ready) {
- return this;
- }
- if (this.hiding) {
- this.transitioning.abort();
- }
- this.showing = true;
- this.open();
- var viewer = this.viewer;
- removeClass(viewer, CLASS_HIDE);
- viewer.setAttribute('role', 'dialog');
- viewer.setAttribute('aria-labelledby', this.title.id);
- viewer.setAttribute('aria-modal', true);
- viewer.removeAttribute('aria-hidden');
- if (options.transition && !immediate) {
- var shown = this.shown.bind(this);
- this.transitioning = {
- abort: function abort() {
- removeListener(viewer, EVENT_TRANSITION_END, shown);
- removeClass(viewer, CLASS_IN);
- }
- };
- addClass(viewer, CLASS_TRANSITION);
-
- // Force reflow to enable CSS3 transition
- viewer.initialOffsetWidth = viewer.offsetWidth;
- addListener(viewer, EVENT_TRANSITION_END, shown, {
- once: true
- });
- addClass(viewer, CLASS_IN);
- } else {
- addClass(viewer, CLASS_IN);
- this.shown();
- }
- return this;
- },
- /**
- * Hide the viewer (only available in modal mode)
- * @param {boolean} [immediate=false] - Indicates if hide the viewer immediately or not.
- * @returns {Viewer} this
- */
- hide: function hide() {
- var _this = this;
- var immediate = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
- var element = this.element,
- options = this.options;
- if (options.inline || this.hiding || !(this.isShown || this.showing)) {
- return this;
- }
- if (isFunction(options.hide)) {
- addListener(element, EVENT_HIDE, options.hide, {
- once: true
- });
- }
- if (dispatchEvent(element, EVENT_HIDE) === false) {
- return this;
- }
- if (this.showing) {
- this.transitioning.abort();
- }
- this.hiding = true;
- if (this.played) {
- this.stop();
- } else if (this.viewing) {
- this.viewing.abort();
- }
- var viewer = this.viewer,
- image = this.image;
- var hideImmediately = function hideImmediately() {
- removeClass(viewer, CLASS_IN);
- _this.hidden();
- };
- if (options.transition && !immediate) {
- var onViewerTransitionEnd = function onViewerTransitionEnd(event) {
- // Ignore all propagating `transitionend` events (#275).
- if (event && event.target === viewer) {
- removeListener(viewer, EVENT_TRANSITION_END, onViewerTransitionEnd);
- _this.hidden();
- }
- };
- var onImageTransitionEnd = function onImageTransitionEnd() {
- // In case of show the viewer by `viewer.show(true)` previously (#407).
- if (hasClass(viewer, CLASS_TRANSITION)) {
- addListener(viewer, EVENT_TRANSITION_END, onViewerTransitionEnd);
- removeClass(viewer, CLASS_IN);
- } else {
- hideImmediately();
- }
- };
- this.transitioning = {
- abort: function abort() {
- if (_this.viewed && hasClass(image, CLASS_TRANSITION)) {
- removeListener(image, EVENT_TRANSITION_END, onImageTransitionEnd);
- } else if (hasClass(viewer, CLASS_TRANSITION)) {
- removeListener(viewer, EVENT_TRANSITION_END, onViewerTransitionEnd);
- }
- }
- };
-
- // In case of hiding the viewer when holding on the image (#255),
- // note that the `CLASS_TRANSITION` class will be removed on pointer down.
- if (this.viewed && hasClass(image, CLASS_TRANSITION)) {
- addListener(image, EVENT_TRANSITION_END, onImageTransitionEnd, {
- once: true
- });
- this.zoomTo(0, false, null, null, true);
- } else {
- onImageTransitionEnd();
- }
- } else {
- hideImmediately();
- }
- return this;
- },
- /**
- * View one of the images with image's index
- * @param {number} index - The index of the image to view.
- * @returns {Viewer} this
- */
- view: function view() {
- var _this2 = this;
- var index = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : this.options.initialViewIndex;
- index = Number(index) || 0;
- if (this.hiding || this.played || index < 0 || index >= this.length || this.viewed && index === this.index) {
- return this;
- }
- if (!this.isShown) {
- this.index = index;
- return this.show();
- }
- if (this.viewing) {
- this.viewing.abort();
- }
- var element = this.element,
- options = this.options,
- title = this.title,
- canvas = this.canvas;
- var item = this.items[index];
- var img = item.querySelector('img');
- var url = getData(img, 'originalUrl');
- var alt = img.getAttribute('alt');
- var image = document.createElement('img');
- forEach(options.inheritedAttributes, function (name) {
- var value = img.getAttribute(name);
- if (value !== null) {
- image.setAttribute(name, value);
- }
- });
- image.src = url;
- image.alt = alt;
- if (isFunction(options.view)) {
- addListener(element, EVENT_VIEW, options.view, {
- once: true
- });
- }
- if (dispatchEvent(element, EVENT_VIEW, {
- originalImage: this.images[index],
- index: index,
- image: image
- }) === false || !this.isShown || this.hiding || this.played) {
- return this;
- }
- var activeItem = this.items[this.index];
- if (activeItem) {
- removeClass(activeItem, CLASS_ACTIVE);
- activeItem.removeAttribute('aria-selected');
- }
- addClass(item, CLASS_ACTIVE);
- item.setAttribute('aria-selected', true);
- if (options.focus) {
- item.focus();
- }
- this.image = image;
- this.viewed = false;
- this.index = index;
- this.imageData = {};
- addClass(image, CLASS_INVISIBLE);
- if (options.loading) {
- addClass(canvas, CLASS_LOADING);
- }
- canvas.innerHTML = '';
- canvas.appendChild(image);
-
- // Center current item
- this.renderList();
-
- // Clear title
- title.innerHTML = '';
-
- // Generate title after viewed
- var onViewed = function onViewed() {
- var imageData = _this2.imageData;
- var render = Array.isArray(options.title) ? options.title[1] : options.title;
- title.innerHTML = escapeHTMLEntities(isFunction(render) ? render.call(_this2, image, imageData) : "".concat(alt, " (").concat(imageData.naturalWidth, " \xD7 ").concat(imageData.naturalHeight, ")"));
- };
- var onLoad;
- var onError;
- addListener(element, EVENT_VIEWED, onViewed, {
- once: true
- });
- this.viewing = {
- abort: function abort() {
- removeListener(element, EVENT_VIEWED, onViewed);
- if (image.complete) {
- if (_this2.imageRendering) {
- _this2.imageRendering.abort();
- } else if (_this2.imageInitializing) {
- _this2.imageInitializing.abort();
- }
- } else {
- // Cancel download to save bandwidth.
- image.src = '';
- removeListener(image, EVENT_LOAD, onLoad);
- if (_this2.timeout) {
- clearTimeout(_this2.timeout);
- }
- }
- }
- };
- if (image.complete) {
- this.load();
- } else {
- addListener(image, EVENT_LOAD, onLoad = function onLoad() {
- removeListener(image, EVENT_ERROR, onError);
- _this2.load();
- }, {
- once: true
- });
- addListener(image, EVENT_ERROR, onError = function onError() {
- removeListener(image, EVENT_LOAD, onLoad);
- if (_this2.timeout) {
- clearTimeout(_this2.timeout);
- _this2.timeout = false;
- }
- removeClass(image, CLASS_INVISIBLE);
- if (options.loading) {
- removeClass(_this2.canvas, CLASS_LOADING);
- }
- }, {
- once: true
- });
- if (this.timeout) {
- clearTimeout(this.timeout);
- }
-
- // Make the image visible if it fails to load within 1s
- this.timeout = setTimeout(function () {
- removeClass(image, CLASS_INVISIBLE);
- _this2.timeout = false;
- }, 1000);
- }
- return this;
- },
- /**
- * View the previous image
- * @param {boolean} [loop=false] - Indicate if view the last one
- * when it is the first one at present.
- * @returns {Viewer} this
- */
- prev: function prev() {
- var loop = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
- var index = this.index - 1;
- if (index < 0) {
- index = loop ? this.length - 1 : 0;
- }
- this.view(index);
- return this;
- },
- /**
- * View the next image
- * @param {boolean} [loop=false] - Indicate if view the first one
- * when it is the last one at present.
- * @returns {Viewer} this
- */
- next: function next() {
- var loop = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
- var maxIndex = this.length - 1;
- var index = this.index + 1;
- if (index > maxIndex) {
- index = loop ? 0 : maxIndex;
- }
- this.view(index);
- return this;
- },
- /**
- * Move the image with relative offsets.
- * @param {number} x - The moving distance in the horizontal direction.
- * @param {number} [y=x] The moving distance in the vertical direction.
- * @returns {Viewer} this
- */
- move: function move(x) {
- var y = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : x;
- var imageData = this.imageData;
- this.moveTo(isUndefined(x) ? x : imageData.x + Number(x), isUndefined(y) ? y : imageData.y + Number(y));
- return this;
- },
- /**
- * Move the image to an absolute point.
- * @param {number} x - The new position in the horizontal direction.
- * @param {number} [y=x] - The new position in the vertical direction.
- * @param {Event} [_originalEvent=null] - The original event if any.
- * @returns {Viewer} this
- */
- moveTo: function moveTo(x) {
- var _this3 = this;
- var y = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : x;
- var _originalEvent = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
- var element = this.element,
- options = this.options,
- imageData = this.imageData;
- x = Number(x);
- y = Number(y);
- if (this.viewed && !this.played && options.movable) {
- var oldX = imageData.x;
- var oldY = imageData.y;
- var changed = false;
- if (isNumber(x)) {
- changed = true;
- } else {
- x = oldX;
- }
- if (isNumber(y)) {
- changed = true;
- } else {
- y = oldY;
- }
- if (changed) {
- if (isFunction(options.move)) {
- addListener(element, EVENT_MOVE, options.move, {
- once: true
- });
- }
- if (dispatchEvent(element, EVENT_MOVE, {
- x: x,
- y: y,
- oldX: oldX,
- oldY: oldY,
- originalEvent: _originalEvent
- }) === false) {
- return this;
- }
- imageData.x = x;
- imageData.y = y;
- imageData.left = x;
- imageData.top = y;
- this.moving = true;
- this.renderImage(function () {
- _this3.moving = false;
- if (isFunction(options.moved)) {
- addListener(element, EVENT_MOVED, options.moved, {
- once: true
- });
- }
- dispatchEvent(element, EVENT_MOVED, {
- x: x,
- y: y,
- oldX: oldX,
- oldY: oldY,
- originalEvent: _originalEvent
- }, {
- cancelable: false
- });
- });
- }
- }
- return this;
- },
- /**
- * Rotate the image with a relative degree.
- * @param {number} degree - The rotate degree.
- * @returns {Viewer} this
- */
- rotate: function rotate(degree) {
- this.rotateTo((this.imageData.rotate || 0) + Number(degree));
- return this;
- },
- /**
- * Rotate the image to an absolute degree.
- * @param {number} degree - The rotate degree.
- * @returns {Viewer} this
- */
- rotateTo: function rotateTo(degree) {
- var _this4 = this;
- var element = this.element,
- options = this.options,
- imageData = this.imageData;
- degree = Number(degree);
- if (isNumber(degree) && this.viewed && !this.played && options.rotatable) {
- var oldDegree = imageData.rotate;
- if (isFunction(options.rotate)) {
- addListener(element, EVENT_ROTATE, options.rotate, {
- once: true
- });
- }
- if (dispatchEvent(element, EVENT_ROTATE, {
- degree: degree,
- oldDegree: oldDegree
- }) === false) {
- return this;
- }
- imageData.rotate = degree;
- this.rotating = true;
- this.renderImage(function () {
- _this4.rotating = false;
- if (isFunction(options.rotated)) {
- addListener(element, EVENT_ROTATED, options.rotated, {
- once: true
- });
- }
- dispatchEvent(element, EVENT_ROTATED, {
- degree: degree,
- oldDegree: oldDegree
- }, {
- cancelable: false
- });
- });
- }
- return this;
- },
- /**
- * Scale the image on the x-axis.
- * @param {number} scaleX - The scale ratio on the x-axis.
- * @returns {Viewer} this
- */
- scaleX: function scaleX(_scaleX) {
- this.scale(_scaleX, this.imageData.scaleY);
- return this;
- },
- /**
- * Scale the image on the y-axis.
- * @param {number} scaleY - The scale ratio on the y-axis.
- * @returns {Viewer} this
- */
- scaleY: function scaleY(_scaleY) {
- this.scale(this.imageData.scaleX, _scaleY);
- return this;
- },
- /**
- * Scale the image.
- * @param {number} scaleX - The scale ratio on the x-axis.
- * @param {number} [scaleY=scaleX] - The scale ratio on the y-axis.
- * @returns {Viewer} this
- */
- scale: function scale(scaleX) {
- var _this5 = this;
- var scaleY = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : scaleX;
- var element = this.element,
- options = this.options,
- imageData = this.imageData;
- scaleX = Number(scaleX);
- scaleY = Number(scaleY);
- if (this.viewed && !this.played && options.scalable) {
- var oldScaleX = imageData.scaleX;
- var oldScaleY = imageData.scaleY;
- var changed = false;
- if (isNumber(scaleX)) {
- changed = true;
- } else {
- scaleX = oldScaleX;
- }
- if (isNumber(scaleY)) {
- changed = true;
- } else {
- scaleY = oldScaleY;
- }
- if (changed) {
- if (isFunction(options.scale)) {
- addListener(element, EVENT_SCALE, options.scale, {
- once: true
- });
- }
- if (dispatchEvent(element, EVENT_SCALE, {
- scaleX: scaleX,
- scaleY: scaleY,
- oldScaleX: oldScaleX,
- oldScaleY: oldScaleY
- }) === false) {
- return this;
- }
- imageData.scaleX = scaleX;
- imageData.scaleY = scaleY;
- this.scaling = true;
- this.renderImage(function () {
- _this5.scaling = false;
- if (isFunction(options.scaled)) {
- addListener(element, EVENT_SCALED, options.scaled, {
- once: true
- });
- }
- dispatchEvent(element, EVENT_SCALED, {
- scaleX: scaleX,
- scaleY: scaleY,
- oldScaleX: oldScaleX,
- oldScaleY: oldScaleY
- }, {
- cancelable: false
- });
- });
- }
- }
- return this;
- },
- /**
- * Zoom the image with a relative ratio.
- * @param {number} ratio - The target ratio.
- * @param {boolean} [showTooltip=false] - Indicates whether to show the tooltip.
- * @param {Object} [pivot] - The pivot point coordinate for zooming.
- * @param {Event} [_originalEvent=null] - The original event if any.
- * @returns {Viewer} this
- */
- zoom: function zoom(ratio) {
- var showTooltip = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
- var pivot = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
- var _originalEvent = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
- var imageData = this.imageData;
- ratio = Number(ratio);
- if (ratio < 0) {
- ratio = 1 / (1 - ratio);
- } else {
- ratio = 1 + ratio;
- }
- this.zoomTo(imageData.width * ratio / imageData.naturalWidth, showTooltip, pivot, _originalEvent);
- return this;
- },
- /**
- * Zoom the image to an absolute ratio.
- * @param {number} ratio - The target ratio.
- * @param {boolean} [showTooltip] - Indicates whether to show the tooltip.
- * @param {Object} [pivot] - The pivot point coordinate for zooming.
- * @param {Event} [_originalEvent=null] - The original event if any.
- * @param {Event} [_zoomable=false] - Indicates if the current zoom is available or not.
- * @returns {Viewer} this
- */
- zoomTo: function zoomTo(ratio) {
- var _this6 = this;
- var showTooltip = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;
- var pivot = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : null;
- var _originalEvent = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : null;
- var _zoomable = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : false;
- var element = this.element,
- options = this.options,
- pointers = this.pointers,
- imageData = this.imageData;
- var x = imageData.x,
- y = imageData.y,
- width = imageData.width,
- height = imageData.height,
- naturalWidth = imageData.naturalWidth,
- naturalHeight = imageData.naturalHeight;
- ratio = Math.max(0, ratio);
- if (isNumber(ratio) && this.viewed && !this.played && (_zoomable || options.zoomable)) {
- if (!_zoomable) {
- var minZoomRatio = Math.max(0.01, options.minZoomRatio);
- var maxZoomRatio = Math.min(100, options.maxZoomRatio);
- ratio = Math.min(Math.max(ratio, minZoomRatio), maxZoomRatio);
- }
- if (_originalEvent) {
- switch (_originalEvent.type) {
- case 'wheel':
- if (options.zoomRatio >= 0.055 && ratio > 0.95 && ratio < 1.05) {
- ratio = 1;
- }
- break;
- case 'pointermove':
- case 'touchmove':
- case 'mousemove':
- if (ratio > 0.99 && ratio < 1.01) {
- ratio = 1;
- }
- break;
- }
- }
- var newWidth = naturalWidth * ratio;
- var newHeight = naturalHeight * ratio;
- var offsetWidth = newWidth - width;
- var offsetHeight = newHeight - height;
- var oldRatio = imageData.ratio;
- if (isFunction(options.zoom)) {
- addListener(element, EVENT_ZOOM, options.zoom, {
- once: true
- });
- }
- if (dispatchEvent(element, EVENT_ZOOM, {
- ratio: ratio,
- oldRatio: oldRatio,
- originalEvent: _originalEvent
- }) === false) {
- return this;
- }
- this.zooming = true;
- if (_originalEvent) {
- var offset = getOffset(this.viewer);
- var center = pointers && Object.keys(pointers).length > 0 ? getPointersCenter(pointers) : {
- pageX: _originalEvent.pageX,
- pageY: _originalEvent.pageY
- };
-
- // Zoom from the triggering point of the event
- imageData.x -= offsetWidth * ((center.pageX - offset.left - x) / width);
- imageData.y -= offsetHeight * ((center.pageY - offset.top - y) / height);
- } else if (isPlainObject(pivot) && isNumber(pivot.x) && isNumber(pivot.y)) {
- imageData.x -= offsetWidth * ((pivot.x - x) / width);
- imageData.y -= offsetHeight * ((pivot.y - y) / height);
- } else {
- // Zoom from the center of the image
- imageData.x -= offsetWidth / 2;
- imageData.y -= offsetHeight / 2;
- }
- imageData.left = imageData.x;
- imageData.top = imageData.y;
- imageData.width = newWidth;
- imageData.height = newHeight;
- imageData.oldRatio = oldRatio;
- imageData.ratio = ratio;
- this.renderImage(function () {
- _this6.zooming = false;
- if (isFunction(options.zoomed)) {
- addListener(element, EVENT_ZOOMED, options.zoomed, {
- once: true
- });
- }
- dispatchEvent(element, EVENT_ZOOMED, {
- ratio: ratio,
- oldRatio: oldRatio,
- originalEvent: _originalEvent
- }, {
- cancelable: false
- });
- });
- if (showTooltip) {
- this.tooltip();
- }
- }
- return this;
- },
- /**
- * Play the images
- * @param {boolean|FullscreenOptions} [fullscreen=false] - Indicate if request fullscreen or not.
- * @returns {Viewer} this
- */
- play: function play() {
- var _this7 = this;
- var fullscreen = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : false;
- if (!this.isShown || this.played) {
- return this;
- }
- var element = this.element,
- options = this.options;
- if (isFunction(options.play)) {
- addListener(element, EVENT_PLAY, options.play, {
- once: true
- });
- }
- if (dispatchEvent(element, EVENT_PLAY) === false) {
- return this;
- }
- var player = this.player;
- var onLoad = this.loadImage.bind(this);
- var list = [];
- var total = 0;
- var index = 0;
- this.played = true;
- this.onLoadWhenPlay = onLoad;
- if (fullscreen) {
- this.requestFullscreen(fullscreen);
- }
- addClass(player, CLASS_SHOW);
- forEach(this.items, function (item, i) {
- var img = item.querySelector('img');
- var image = document.createElement('img');
- image.src = getData(img, 'originalUrl');
- image.alt = img.getAttribute('alt');
- image.referrerPolicy = img.referrerPolicy;
- total += 1;
- addClass(image, CLASS_FADE);
- toggleClass(image, CLASS_TRANSITION, options.transition);
- if (hasClass(item, CLASS_ACTIVE)) {
- addClass(image, CLASS_IN);
- index = i;
- }
- list.push(image);
- addListener(image, EVENT_LOAD, onLoad, {
- once: true
- });
- player.appendChild(image);
- });
- if (isNumber(options.interval) && options.interval > 0) {
- var prev = function prev() {
- clearTimeout(_this7.playing.timeout);
- removeClass(list[index], CLASS_IN);
- index -= 1;
- index = index >= 0 ? index : total - 1;
- addClass(list[index], CLASS_IN);
- _this7.playing.timeout = setTimeout(prev, options.interval);
- };
- var next = function next() {
- clearTimeout(_this7.playing.timeout);
- removeClass(list[index], CLASS_IN);
- index += 1;
- index = index < total ? index : 0;
- addClass(list[index], CLASS_IN);
- _this7.playing.timeout = setTimeout(next, options.interval);
- };
- if (total > 1) {
- this.playing = {
- prev: prev,
- next: next,
- timeout: setTimeout(next, options.interval)
- };
- }
- }
- return this;
- },
- // Stop play
- stop: function stop() {
- var _this8 = this;
- if (!this.played) {
- return this;
- }
- var element = this.element,
- options = this.options;
- if (isFunction(options.stop)) {
- addListener(element, EVENT_STOP, options.stop, {
- once: true
- });
- }
- if (dispatchEvent(element, EVENT_STOP) === false) {
- return this;
- }
- var player = this.player;
- clearTimeout(this.playing.timeout);
- this.playing = false;
- this.played = false;
- forEach(player.getElementsByTagName('img'), function (image) {
- removeListener(image, EVENT_LOAD, _this8.onLoadWhenPlay);
- });
- removeClass(player, CLASS_SHOW);
- player.innerHTML = '';
- this.exitFullscreen();
- return this;
- },
- // Enter modal mode (only available in inline mode)
- full: function full() {
- var _this9 = this;
- var options = this.options,
- viewer = this.viewer,
- image = this.image,
- list = this.list;
- if (!this.isShown || this.played || this.fulled || !options.inline) {
- return this;
- }
- this.fulled = true;
- this.open();
- addClass(this.button, CLASS_FULLSCREEN_EXIT);
- if (options.transition) {
- removeClass(list, CLASS_TRANSITION);
- if (this.viewed) {
- removeClass(image, CLASS_TRANSITION);
- }
- }
- addClass(viewer, CLASS_FIXED);
- viewer.setAttribute('role', 'dialog');
- viewer.setAttribute('aria-labelledby', this.title.id);
- viewer.setAttribute('aria-modal', true);
- viewer.removeAttribute('style');
- setStyle(viewer, {
- zIndex: options.zIndex
- });
- if (options.focus) {
- this.enforceFocus();
- }
- this.initContainer();
- this.viewerData = assign({}, this.containerData);
- this.renderList();
- if (this.viewed) {
- this.initImage(function () {
- _this9.renderImage(function () {
- if (options.transition) {
- setTimeout(function () {
- addClass(image, CLASS_TRANSITION);
- addClass(list, CLASS_TRANSITION);
- }, 0);
- }
- });
- });
- }
- return this;
- },
- // Exit modal mode (only available in inline mode)
- exit: function exit() {
- var _this10 = this;
- var options = this.options,
- viewer = this.viewer,
- image = this.image,
- list = this.list;
- if (!this.isShown || this.played || !this.fulled || !options.inline) {
- return this;
- }
- this.fulled = false;
- this.close();
- removeClass(this.button, CLASS_FULLSCREEN_EXIT);
- if (options.transition) {
- removeClass(list, CLASS_TRANSITION);
- if (this.viewed) {
- removeClass(image, CLASS_TRANSITION);
- }
- }
- if (options.focus) {
- this.clearEnforceFocus();
- }
- viewer.removeAttribute('role');
- viewer.removeAttribute('aria-labelledby');
- viewer.removeAttribute('aria-modal');
- removeClass(viewer, CLASS_FIXED);
- setStyle(viewer, {
- zIndex: options.zIndexInline
- });
- this.viewerData = assign({}, this.parentData);
- this.renderViewer();
- this.renderList();
- if (this.viewed) {
- this.initImage(function () {
- _this10.renderImage(function () {
- if (options.transition) {
- setTimeout(function () {
- addClass(image, CLASS_TRANSITION);
- addClass(list, CLASS_TRANSITION);
- }, 0);
- }
- });
- });
- }
- return this;
- },
- // Show the current ratio of the image with percentage
- tooltip: function tooltip() {
- var _this11 = this;
- var options = this.options,
- tooltipBox = this.tooltipBox,
- imageData = this.imageData;
- if (!this.viewed || this.played || !options.tooltip) {
- return this;
- }
- tooltipBox.textContent = "".concat(Math.round(imageData.ratio * 100), "%");
- if (!this.tooltipping) {
- if (options.transition) {
- if (this.fading) {
- dispatchEvent(tooltipBox, EVENT_TRANSITION_END);
- }
- addClass(tooltipBox, CLASS_SHOW);
- addClass(tooltipBox, CLASS_FADE);
- addClass(tooltipBox, CLASS_TRANSITION);
- tooltipBox.removeAttribute('aria-hidden');
-
- // Force reflow to enable CSS3 transition
- tooltipBox.initialOffsetWidth = tooltipBox.offsetWidth;
- addClass(tooltipBox, CLASS_IN);
- } else {
- addClass(tooltipBox, CLASS_SHOW);
- tooltipBox.removeAttribute('aria-hidden');
- }
- } else {
- clearTimeout(this.tooltipping);
- }
- this.tooltipping = setTimeout(function () {
- if (options.transition) {
- addListener(tooltipBox, EVENT_TRANSITION_END, function () {
- removeClass(tooltipBox, CLASS_SHOW);
- removeClass(tooltipBox, CLASS_FADE);
- removeClass(tooltipBox, CLASS_TRANSITION);
- tooltipBox.setAttribute('aria-hidden', true);
- _this11.fading = false;
- }, {
- once: true
- });
- removeClass(tooltipBox, CLASS_IN);
- _this11.fading = true;
- } else {
- removeClass(tooltipBox, CLASS_SHOW);
- tooltipBox.setAttribute('aria-hidden', true);
- }
- _this11.tooltipping = false;
- }, 1000);
- return this;
- },
- /**
- * Toggle the image size between its current size and natural size
- * @param {Event} [_originalEvent=null] - The original event if any.
- * @returns {Viewer} this
- */
- toggle: function toggle() {
- var _originalEvent = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : null;
- if (this.imageData.ratio === 1) {
- this.zoomTo(this.imageData.oldRatio, true, null, _originalEvent);
- } else {
- this.zoomTo(1, true, null, _originalEvent);
- }
- return this;
- },
- // Reset the image to its initial state
- reset: function reset() {
- if (this.viewed && !this.played) {
- this.imageData = assign({}, this.initialImageData);
- this.renderImage();
- }
- return this;
- },
- // Update viewer when images changed
- update: function update() {
- var _this12 = this;
- var element = this.element,
- options = this.options,
- isImg = this.isImg;
-
- // Destroy viewer if the target image was deleted
- if (isImg && !element.parentNode) {
- return this.destroy();
- }
- var images = [];
- forEach(isImg ? [element] : element.querySelectorAll('img'), function (image) {
- if (isFunction(options.filter)) {
- if (options.filter.call(_this12, image)) {
- images.push(image);
- }
- } else if (_this12.getImageURL(image)) {
- images.push(image);
- }
- });
- if (!images.length) {
- return this;
- }
- this.images = images;
- this.length = images.length;
- if (this.ready) {
- var changedIndexes = [];
- forEach(this.items, function (item, i) {
- var img = item.querySelector('img');
- var image = images[i];
- if (image && img) {
- if (image.src !== img.src
-
- // Title changed (#408)
- || image.alt !== img.alt) {
- changedIndexes.push(i);
- }
- } else {
- changedIndexes.push(i);
- }
- });
- setStyle(this.list, {
- width: 'auto'
- });
- this.initList();
- if (this.isShown) {
- if (this.length) {
- if (this.viewed) {
- var changedIndex = changedIndexes.indexOf(this.index);
- if (changedIndex >= 0) {
- this.viewed = false;
- this.view(Math.max(Math.min(this.index - changedIndex, this.length - 1), 0));
- } else {
- var activeItem = this.items[this.index];
-
- // Reactivate the current viewing item after reset the list.
- addClass(activeItem, CLASS_ACTIVE);
- activeItem.setAttribute('aria-selected', true);
- }
- }
- } else {
- this.image = null;
- this.viewed = false;
- this.index = 0;
- this.imageData = {};
- this.canvas.innerHTML = '';
- this.title.innerHTML = '';
- }
- }
- } else {
- this.build();
- }
- return this;
- },
- // Destroy the viewer
- destroy: function destroy() {
- var element = this.element,
- options = this.options;
- if (!element[NAMESPACE]) {
- return this;
- }
- this.destroyed = true;
- if (this.ready) {
- if (this.played) {
- this.stop();
- }
- if (options.inline) {
- if (this.fulled) {
- this.exit();
- }
- this.unbind();
- } else if (this.isShown) {
- if (this.viewing) {
- if (this.imageRendering) {
- this.imageRendering.abort();
- } else if (this.imageInitializing) {
- this.imageInitializing.abort();
- }
- }
- if (this.hiding) {
- this.transitioning.abort();
- }
- this.hidden();
- } else if (this.showing) {
- this.transitioning.abort();
- this.hidden();
- }
- this.ready = false;
- this.viewer.parentNode.removeChild(this.viewer);
- } else if (options.inline) {
- if (this.delaying) {
- this.delaying.abort();
- } else if (this.initializing) {
- this.initializing.abort();
- }
- }
- if (!options.inline) {
- removeListener(element, EVENT_CLICK, this.onStart);
- }
- element[NAMESPACE] = undefined;
- return this;
- }
- };
-
- var others = {
- getImageURL: function getImageURL(image) {
- var url = this.options.url;
- if (isString(url)) {
- url = image.getAttribute(url);
- } else if (isFunction(url)) {
- url = url.call(this, image);
- } else {
- url = '';
- }
- return url;
- },
- enforceFocus: function enforceFocus() {
- var _this = this;
- this.clearEnforceFocus();
- addListener(document, EVENT_FOCUSIN, this.onFocusin = function (event) {
- var viewer = _this.viewer;
- var target = event.target;
- if (target === document || target === viewer || viewer.contains(target)) {
- return;
- }
- while (target) {
- // Avoid conflicts with other modals (#474, #540)
- if (target.getAttribute('tabindex') !== null || target.getAttribute('aria-modal') === 'true') {
- return;
- }
- target = target.parentElement;
- }
- viewer.focus();
- });
- },
- clearEnforceFocus: function clearEnforceFocus() {
- if (this.onFocusin) {
- removeListener(document, EVENT_FOCUSIN, this.onFocusin);
- this.onFocusin = null;
- }
- },
- open: function open() {
- var body = this.body;
- addClass(body, CLASS_OPEN);
- if (this.scrollbarWidth > 0) {
- body.style.paddingRight = "".concat(this.scrollbarWidth + (parseFloat(this.initialBodyComputedPaddingRight) || 0), "px");
- }
- },
- close: function close() {
- var body = this.body;
- removeClass(body, CLASS_OPEN);
- if (this.scrollbarWidth > 0) {
- body.style.paddingRight = this.initialBodyPaddingRight;
- }
- },
- shown: function shown() {
- var element = this.element,
- options = this.options,
- viewer = this.viewer;
- this.fulled = true;
- this.isShown = true;
- this.render();
- this.bind();
- this.showing = false;
- if (options.focus) {
- viewer.focus();
- this.enforceFocus();
- }
- if (isFunction(options.shown)) {
- addListener(element, EVENT_SHOWN, options.shown, {
- once: true
- });
- }
- if (dispatchEvent(element, EVENT_SHOWN) === false) {
- return;
- }
- if (this.ready && this.isShown && !this.hiding) {
- this.view(this.index);
- }
- },
- hidden: function hidden() {
- var element = this.element,
- options = this.options,
- viewer = this.viewer;
- if (options.fucus) {
- this.clearEnforceFocus();
- }
- this.close();
- this.unbind();
- addClass(viewer, CLASS_HIDE);
- viewer.removeAttribute('role');
- viewer.removeAttribute('aria-labelledby');
- viewer.removeAttribute('aria-modal');
- viewer.setAttribute('aria-hidden', true);
- this.resetList();
- this.resetImage();
- this.fulled = false;
- this.viewed = false;
- this.isShown = false;
- this.hiding = false;
- if (!this.destroyed) {
- if (isFunction(options.hidden)) {
- addListener(element, EVENT_HIDDEN, options.hidden, {
- once: true
- });
- }
- dispatchEvent(element, EVENT_HIDDEN, null, {
- cancelable: false
- });
- }
- },
- requestFullscreen: function requestFullscreen(options) {
- var document = this.element.ownerDocument;
- if (this.fulled && !(document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement)) {
- var documentElement = document.documentElement;
-
- // Element.requestFullscreen()
- if (documentElement.requestFullscreen) {
- // Avoid TypeError when convert `options` to dictionary
- if (isPlainObject(options)) {
- documentElement.requestFullscreen(options);
- } else {
- documentElement.requestFullscreen();
- }
- } else if (documentElement.webkitRequestFullscreen) {
- documentElement.webkitRequestFullscreen(Element.ALLOW_KEYBOARD_INPUT);
- } else if (documentElement.mozRequestFullScreen) {
- documentElement.mozRequestFullScreen();
- } else if (documentElement.msRequestFullscreen) {
- documentElement.msRequestFullscreen();
- }
- }
- },
- exitFullscreen: function exitFullscreen() {
- var document = this.element.ownerDocument;
- if (this.fulled && (document.fullscreenElement || document.webkitFullscreenElement || document.mozFullScreenElement || document.msFullscreenElement)) {
- // Document.exitFullscreen()
- if (document.exitFullscreen) {
- document.exitFullscreen();
- } else if (document.webkitExitFullscreen) {
- document.webkitExitFullscreen();
- } else if (document.mozCancelFullScreen) {
- document.mozCancelFullScreen();
- } else if (document.msExitFullscreen) {
- document.msExitFullscreen();
- }
- }
- },
- change: function change(event) {
- var options = this.options,
- pointers = this.pointers;
- var pointer = pointers[Object.keys(pointers)[0]];
-
- // In the case of the `pointers` object is empty (#421)
- if (!pointer) {
- return;
- }
- var offsetX = pointer.endX - pointer.startX;
- var offsetY = pointer.endY - pointer.startY;
- switch (this.action) {
- // Move the current image
- case ACTION_MOVE:
- if (offsetX !== 0 || offsetY !== 0) {
- this.pointerMoved = true;
- this.move(offsetX, offsetY, event);
- }
- break;
-
- // Zoom the current image
- case ACTION_ZOOM:
- this.zoom(getMaxZoomRatio(pointers), false, null, event);
- break;
- case ACTION_SWITCH:
- {
- this.action = 'switched';
- var absoluteOffsetX = Math.abs(offsetX);
- if (absoluteOffsetX > 1 && absoluteOffsetX > Math.abs(offsetY)) {
- // Empty `pointers` as `touchend` event will not be fired after swiped in iOS browsers.
- this.pointers = {};
- if (offsetX > 1) {
- this.prev(options.loop);
- } else if (offsetX < -1) {
- this.next(options.loop);
- }
- }
- break;
- }
- }
-
- // Override
- forEach(pointers, function (p) {
- p.startX = p.endX;
- p.startY = p.endY;
- });
- },
- isSwitchable: function isSwitchable() {
- var imageData = this.imageData,
- viewerData = this.viewerData;
- return this.length > 1 && imageData.x >= 0 && imageData.y >= 0 && imageData.width <= viewerData.width && imageData.height <= viewerData.height;
- }
- };
-
- var AnotherViewer = WINDOW.Viewer;
- var getUniqueID = function (id) {
- return function () {
- id += 1;
- return id;
- };
- }(-1);
- var Viewer = /*#__PURE__*/function () {
- /**
- * Create a new Viewer.
- * @param {Element} element - The target element for viewing.
- * @param {Object} [options={}] - The configuration options.
- */
- function Viewer(element) {
- var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
- _classCallCheck(this, Viewer);
- if (!element || element.nodeType !== 1) {
- throw new Error('The first argument is required and must be an element.');
- }
- this.element = element;
- this.options = assign({}, DEFAULTS, isPlainObject(options) && options);
- this.action = false;
- this.fading = false;
- this.fulled = false;
- this.hiding = false;
- this.imageClicked = false;
- this.imageData = {};
- this.index = this.options.initialViewIndex;
- this.isImg = false;
- this.isShown = false;
- this.length = 0;
- this.moving = false;
- this.played = false;
- this.playing = false;
- this.pointers = {};
- this.ready = false;
- this.rotating = false;
- this.scaling = false;
- this.showing = false;
- this.timeout = false;
- this.tooltipping = false;
- this.viewed = false;
- this.viewing = false;
- this.wheeling = false;
- this.zooming = false;
- this.pointerMoved = false;
- this.id = getUniqueID();
- this.init();
- }
- _createClass(Viewer, [{
- key: "init",
- value: function init() {
- var _this = this;
- var element = this.element,
- options = this.options;
- if (element[NAMESPACE]) {
- return;
- }
- element[NAMESPACE] = this;
-
- // The `focus` option requires the `keyboard` option set to `true`.
- if (options.focus && !options.keyboard) {
- options.focus = false;
- }
- var isImg = element.localName === 'img';
- var images = [];
- forEach(isImg ? [element] : element.querySelectorAll('img'), function (image) {
- if (isFunction(options.filter)) {
- if (options.filter.call(_this, image)) {
- images.push(image);
- }
- } else if (_this.getImageURL(image)) {
- images.push(image);
- }
- });
- this.isImg = isImg;
- this.length = images.length;
- this.images = images;
- this.initBody();
-
- // Override `transition` option if it is not supported
- if (isUndefined(document.createElement(NAMESPACE).style.transition)) {
- options.transition = false;
- }
- if (options.inline) {
- var count = 0;
- var progress = function progress() {
- count += 1;
- if (count === _this.length) {
- var timeout;
- _this.initializing = false;
- _this.delaying = {
- abort: function abort() {
- clearTimeout(timeout);
- }
- };
-
- // build asynchronously to keep `this.viewer` is accessible in `ready` event handler.
- timeout = setTimeout(function () {
- _this.delaying = false;
- _this.build();
- }, 0);
- }
- };
- this.initializing = {
- abort: function abort() {
- forEach(images, function (image) {
- if (!image.complete) {
- removeListener(image, EVENT_LOAD, progress);
- removeListener(image, EVENT_ERROR, progress);
- }
- });
- }
- };
- forEach(images, function (image) {
- if (image.complete) {
- progress();
- } else {
- var onLoad;
- var onError;
- addListener(image, EVENT_LOAD, onLoad = function onLoad() {
- removeListener(image, EVENT_ERROR, onError);
- progress();
- }, {
- once: true
- });
- addListener(image, EVENT_ERROR, onError = function onError() {
- removeListener(image, EVENT_LOAD, onLoad);
- progress();
- }, {
- once: true
- });
- }
- });
- } else {
- addListener(element, EVENT_CLICK, this.onStart = function (_ref) {
- var target = _ref.target;
- if (target.localName === 'img' && (!isFunction(options.filter) || options.filter.call(_this, target))) {
- _this.view(_this.images.indexOf(target));
- }
- });
- }
- }
- }, {
- key: "build",
- value: function build() {
- if (this.ready) {
- return;
- }
- var element = this.element,
- options = this.options;
- var parent = element.parentNode;
- var template = document.createElement('div');
- template.innerHTML = TEMPLATE;
- var viewer = template.querySelector(".".concat(NAMESPACE, "-container"));
- var title = viewer.querySelector(".".concat(NAMESPACE, "-title"));
- var toolbar = viewer.querySelector(".".concat(NAMESPACE, "-toolbar"));
- var navbar = viewer.querySelector(".".concat(NAMESPACE, "-navbar"));
- var button = viewer.querySelector(".".concat(NAMESPACE, "-button"));
- var canvas = viewer.querySelector(".".concat(NAMESPACE, "-canvas"));
- this.parent = parent;
- this.viewer = viewer;
- this.title = title;
- this.toolbar = toolbar;
- this.navbar = navbar;
- this.button = button;
- this.canvas = canvas;
- this.footer = viewer.querySelector(".".concat(NAMESPACE, "-footer"));
- this.tooltipBox = viewer.querySelector(".".concat(NAMESPACE, "-tooltip"));
- this.player = viewer.querySelector(".".concat(NAMESPACE, "-player"));
- this.list = viewer.querySelector(".".concat(NAMESPACE, "-list"));
- viewer.id = "".concat(NAMESPACE).concat(this.id);
- title.id = "".concat(NAMESPACE, "Title").concat(this.id);
- addClass(title, !options.title ? CLASS_HIDE : getResponsiveClass(Array.isArray(options.title) ? options.title[0] : options.title));
- addClass(navbar, !options.navbar ? CLASS_HIDE : getResponsiveClass(options.navbar));
- toggleClass(button, CLASS_HIDE, !options.button);
- if (options.keyboard) {
- button.setAttribute('tabindex', 0);
- }
- if (options.backdrop) {
- addClass(viewer, "".concat(NAMESPACE, "-backdrop"));
- if (!options.inline && options.backdrop !== 'static') {
- setData(canvas, DATA_ACTION, 'hide');
- }
- }
- if (isString(options.className) && options.className) {
- // In case there are multiple class names
- options.className.split(REGEXP_SPACES).forEach(function (className) {
- addClass(viewer, className);
- });
- }
- if (options.toolbar) {
- var list = document.createElement('ul');
- var custom = isPlainObject(options.toolbar);
- var zoomButtons = BUTTONS.slice(0, 3);
- var rotateButtons = BUTTONS.slice(7, 9);
- var scaleButtons = BUTTONS.slice(9);
- if (!custom) {
- addClass(toolbar, getResponsiveClass(options.toolbar));
- }
- forEach(custom ? options.toolbar : BUTTONS, function (value, index) {
- var deep = custom && isPlainObject(value);
- var name = custom ? hyphenate(index) : value;
- var show = deep && !isUndefined(value.show) ? value.show : value;
- if (!show || !options.zoomable && zoomButtons.indexOf(name) !== -1 || !options.rotatable && rotateButtons.indexOf(name) !== -1 || !options.scalable && scaleButtons.indexOf(name) !== -1) {
- return;
- }
- var size = deep && !isUndefined(value.size) ? value.size : value;
- var click = deep && !isUndefined(value.click) ? value.click : value;
- var item = document.createElement('li');
- if (options.keyboard) {
- item.setAttribute('tabindex', 0);
- }
- item.setAttribute('role', 'button');
- addClass(item, "".concat(NAMESPACE, "-").concat(name));
- if (!isFunction(click)) {
- setData(item, DATA_ACTION, name);
- }
- if (isNumber(show)) {
- addClass(item, getResponsiveClass(show));
- }
- if (['small', 'large'].indexOf(size) !== -1) {
- addClass(item, "".concat(NAMESPACE, "-").concat(size));
- } else if (name === 'play') {
- addClass(item, "".concat(NAMESPACE, "-large"));
- }
- if (isFunction(click)) {
- addListener(item, EVENT_CLICK, click);
- }
- list.appendChild(item);
- });
- toolbar.appendChild(list);
- } else {
- addClass(toolbar, CLASS_HIDE);
- }
- if (!options.rotatable) {
- var rotates = toolbar.querySelectorAll('li[class*="rotate"]');
- addClass(rotates, CLASS_INVISIBLE);
- forEach(rotates, function (rotate) {
- toolbar.appendChild(rotate);
- });
- }
- if (options.inline) {
- addClass(button, CLASS_FULLSCREEN);
- setStyle(viewer, {
- zIndex: options.zIndexInline
- });
- if (window.getComputedStyle(parent).position === 'static') {
- setStyle(parent, {
- position: 'relative'
- });
- }
- parent.insertBefore(viewer, element.nextSibling);
- } else {
- addClass(button, CLASS_CLOSE);
- addClass(viewer, CLASS_FIXED);
- addClass(viewer, CLASS_FADE);
- addClass(viewer, CLASS_HIDE);
- setStyle(viewer, {
- zIndex: options.zIndex
- });
- var container = options.container;
- if (isString(container)) {
- container = element.ownerDocument.querySelector(container);
- }
- if (!container) {
- container = this.body;
- }
- container.appendChild(viewer);
- }
- if (options.inline) {
- this.render();
- this.bind();
- this.isShown = true;
- }
- this.ready = true;
- if (isFunction(options.ready)) {
- addListener(element, EVENT_READY, options.ready, {
- once: true
- });
- }
- if (dispatchEvent(element, EVENT_READY) === false) {
- this.ready = false;
- return;
- }
- if (this.ready && options.inline) {
- this.view(this.index);
- }
- }
-
- /**
- * Get the no conflict viewer class.
- * @returns {Viewer} The viewer class.
- */
- }], [{
- key: "noConflict",
- value: function noConflict() {
- window.Viewer = AnotherViewer;
- return Viewer;
- }
-
- /**
- * Change the default options.
- * @param {Object} options - The new default options.
- */
- }, {
- key: "setDefaults",
- value: function setDefaults(options) {
- assign(DEFAULTS, isPlainObject(options) && options);
- }
- }]);
- return Viewer;
- }();
- assign(Viewer.prototype, render, events, handlers, methods, others);
-
- return Viewer;
-
- }));