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自用函数
此脚本不应直接安装，它是一个供其他脚本使用的外部库。如果您需要使用该库，请在脚本元属性加入：// @require https://update.greasyfork.org/scripts/449412/1122880/Basic%20Functions.js
/* eslint-disable no-multi-spaces */
// ==UserScript==
// @name Basic Functions
// @name:zh-CN 常用函数
// @name:en Basic Functions
// @namespace Wenku8++
// @version 0.8
// @description 自用函数 For wenku8++
// @description:zh-CN 自用函数 For wenku8++
// @description:en Useful functions for myself
// @author PY-DNG
// @license GPL-license
// @grant GM_info
// @grant GM_addStyle
// @grant GM_addElement
// @grant GM_deleteValue
// @grant GM_listValues
// @grant GM_addValueChangeListener
// @grant GM_removeValueChangeListener
// @grant GM_setValue
// @grant GM_getValue
// @grant GM_log
// @grant GM_getResourceText
// @grant GM_getResourceURL
// @grant GM_registerMenuCommand
// @grant GM_unregisterMenuCommand
// @grant GM_openInTab
// @grant GM_xmlhttpRequest
// @grant GM_download
// @grant GM_getTab
// @grant GM_saveTab
// @grant GM_getTabs
// @grant GM_notification
// @grant GM_setClipboard
// @grant GM_info
// @grant unsafeWindow
// ==/UserScript==
const LogLevel = {
None: 0,
Error: 1,
Success: 2,
Warning: 3,
Info: 4,
}
// Arguments: level=LogLevel.Info, logContent, trace=false
// Needs one call "DoLog();" to get it initialized before using it!
function DoLog() {
// Get window
const win = (typeof(unsafeWindow) === 'object' && unsafeWindow !== null) ? unsafeWindow : window;
const LogLevelMap = {};
LogLevelMap[LogLevel.None] = {
prefix: '',
color: 'color:#ffffff'
}
LogLevelMap[LogLevel.Error] = {
prefix: '[Error]',
color: 'color:#ff0000'
}
LogLevelMap[LogLevel.Success] = {
prefix: '[Success]',
color: 'color:#00aa00'
}
LogLevelMap[LogLevel.Warning] = {
prefix: '[Warning]',
color: 'color:#ffa500'
}
LogLevelMap[LogLevel.Info] = {
prefix: '[Info]',
color: 'color:#888888'
}
LogLevelMap[LogLevel.Elements] = {
prefix: '[Elements]',
color: 'color:#000000'
}
// Current log level
DoLog.logLevel = (win.isPY_DNG && win.userscriptDebugging) ? LogLevel.Info : LogLevel.Warning; // Info Warning Success Error
// Log counter
DoLog.logCount === undefined && (DoLog.logCount = 0);
// Get args
let [level, logContent, trace] = parseArgs([...arguments], [
[2],
[1,2],
[1,2,3]
], [LogLevel.Info, 'DoLog initialized.', false]);
// Log when log level permits
if (level <= DoLog.logLevel) {
let msg = '%c' + LogLevelMap[level].prefix + (typeof MODULE_DATA === 'object' ? '[' + MODULE_DATA.name + ']' : '') + (LogLevelMap[level].prefix ? ' ' : '');
let subst = LogLevelMap[level].color;
switch (typeof(logContent)) {
case 'string':
msg += '%s';
break;
case 'number':
msg += '%d';
break;
case 'object':
msg += '%o';
break;
}
if (++DoLog.logCount > 512) {
console.clear();
DoLog.logCount = 0;
}
console[trace ? 'trace' : 'log'](msg, subst, logContent);
}
}
DoLog();
// Basic functions
// querySelector
function $() {
switch (arguments.length) {
case 2:
return arguments[0].querySelector(arguments[1]);
break;
default:
return document.querySelector(arguments[0]);
}
}
// querySelectorAll
function $All() {
switch (arguments.length) {
case 2:
return arguments[0].querySelectorAll(arguments[1]);
break;
default:
return document.querySelectorAll(arguments[0]);
}
}
// createElement
function $CrE() {
switch (arguments.length) {
case 2:
return arguments[0].createElement(arguments[1]);
break;
default:
return document.createElement(arguments[0]);
}
}
// addEventListener
function $AEL(...args) {
const target = args.shift();
return target.addEventListener.apply(target, args);
}
// Object1[prop] ==> Object2[prop]
function copyProp(obj1, obj2, prop) {
obj1.hasOwnProperty(prop) && (obj2[prop] = obj1[prop]);
}
function copyProps(obj1, obj2, props) {
(props || Object.keys(obj1)).forEach((prop) => (copyProp(obj1, obj2, prop)));
}
function clearChildNodes(elm) {
for (const el of elm.childNodes) {
elm.removeChild(el);
}
}
// Just stopPropagation and preventDefault
function destroyEvent(e) {
if (!e) {
return false;
};
if (!e instanceof Event) {
return false;
};
e.stopPropagation();
e.preventDefault();
}
// GM_XHR HOOK: The number of running GM_XHRs in a time must under maxXHR
// Returns the abort function to stop the request anyway(no matter it's still waiting, or requesting)
// (If the request is invalid, such as url === '', will return false and will NOT make this request)
// If the abort function called on a request that is not running(still waiting or finished), there will be NO onabort event
// Requires: function delItem(){...} & function uniqueIDMaker(){...}
function GMXHRHook(maxXHR = 5) {
const GM_XHR = GM_xmlhttpRequest;
const getID = uniqueIDMaker();
let todoList = [],
ongoingList = [];
GM_xmlhttpRequest = safeGMxhr;
function safeGMxhr() {
// Get an id for this request, arrange a request object for it.
const id = getID();
const request = {
id: id,
args: arguments,
aborter: null
};
// Deal onload function first
dealEndingEvents(request);
/* DO NOT DO THIS! KEEP ITS ORIGINAL PROPERTIES!
// Stop invalid requests
if (!validCheck(request)) {
return false;
}
*/
// Judge if we could start the request now or later?
todoList.push(request);
checkXHR();
return makeAbortFunc(id);
// Decrease activeXHRCount while GM_XHR onload;
function dealEndingEvents(request) {
const e = request.args[0];
// onload event
const oriOnload = e.onload;
e.onload = function() {
reqFinish(request.id);
checkXHR();
oriOnload ? oriOnload.apply(null, arguments) : function() {};
}
// onerror event
const oriOnerror = e.onerror;
e.onerror = function() {
reqFinish(request.id);
checkXHR();
oriOnerror ? oriOnerror.apply(null, arguments) : function() {};
}
// ontimeout event
const oriOntimeout = e.ontimeout;
e.ontimeout = function() {
reqFinish(request.id);
checkXHR();
oriOntimeout ? oriOntimeout.apply(null, arguments) : function() {};
}
// onabort event
const oriOnabort = e.onabort;
e.onabort = function() {
reqFinish(request.id);
checkXHR();
oriOnabort ? oriOnabort.apply(null, arguments) : function() {};
}
}
// Check if the request is invalid
function validCheck(request) {
const e = request.args[0];
if (!e.url) {
return false;
}
return true;
}
// Call a XHR from todoList and push the request object to ongoingList if called
function checkXHR() {
if (ongoingList.length >= maxXHR) {
return false;
};
if (todoList.length === 0) {
return false;
};
const req = todoList.shift();
const reqArgs = req.args;
const aborter = GM_XHR.apply(null, reqArgs);
req.aborter = aborter;
ongoingList.push(req);
return req;
}
// Make a function that aborts a certain request
function makeAbortFunc(id) {
return function() {
let i;
// Check if the request haven't been called
for (i = 0; i < todoList.length; i++) {
const req = todoList[i];
if (req.id === id) {
// found this request: haven't been called
delItem(todoList, i);
return true;
}
}
// Check if the request is running now
for (i = 0; i < ongoingList.length; i++) {
const req = todoList[i];
if (req.id === id) {
// found this request: running now
req.aborter();
reqFinish(id);
checkXHR();
}
}
// Oh no, this request is already finished...
return false;
}
}
// Remove a certain request from ongoingList
function reqFinish(id) {
let i;
for (i = 0; i < ongoingList.length; i++) {
const req = ongoingList[i];
if (req.id === id) {
ongoingList = delItem(ongoingList, i);
return true;
}
}
return false;
}
}
}
// Get a url argument from lacation.href
// also recieve a function to deal the matched string
// returns defaultValue if name not found
// Args: {url=location.href, name, dealFunc=((a)=>{return a;}), defaultValue=null} or 'name'
function getUrlArgv(details) {
typeof(details) === 'string' && (details = {
name: details
});
typeof(details) === 'undefined' && (details = {});
if (!details.name) {
return null;
};
const url = details.url ? details.url : location.href;
const name = details.name ? details.name : '';
const dealFunc = details.dealFunc ? details.dealFunc : ((a) => {
return a;
});
const defaultValue = details.defaultValue ? details.defaultValue : null;
const matcher = new RegExp('[\\?&]' + name + '=([^&#]+)');
const result = url.match(matcher);
const argv = result ? dealFunc(result[1]) : defaultValue;
return argv;
}
// Append a style text to document(<head>) with a <style> element
function addStyle(css, id) {
const style = document.createElement("style");
id && (style.id = id);
style.textContent = css;
for (const elm of $All(document, '#' + id)) {
elm.parentElement && elm.parentElement.removeChild(elm);
}
document.head.appendChild(style);
}
// Save dataURL to file
function saveFile(dataURL, filename) {
const a = document.createElement('a');
a.href = dataURL;
a.download = filename;
a.click();
}
// File download function
// details looks like the detail of GM_xmlhttpRequest
// onload function will be called after file saved to disk
function downloadFile(details) {
if (!details.url || !details.name) {
return false;
};
// Configure request object
const requestObj = {
url: details.url,
responseType: 'blob',
onload: function(e) {
// Save file
saveFile(URL.createObjectURL(e.response), details.name);
// onload callback
details.onload ? details.onload(e) : function() {};
}
}
if (details.onloadstart) {
requestObj.onloadstart = details.onloadstart;
};
if (details.onprogress) {
requestObj.onprogress = details.onprogress;
};
if (details.onerror) {
requestObj.onerror = details.onerror;
};
if (details.onabort) {
requestObj.onabort = details.onabort;
};
if (details.onreadystatechange) {
requestObj.onreadystatechange = details.onreadystatechange;
};
if (details.ontimeout) {
requestObj.ontimeout = details.ontimeout;
};
// Send request
GM_xmlhttpRequest(requestObj);
}
// get '/' splited API array from a url
function getAPI(url = location.href) {
return url.replace(/https?:\/\/(.*?\.){1,2}.*?\//, '').replace(/\?.*/, '').match(/[^\/]+?(?=(\/|$))/g);
}
// get host part from a url(includes '^https://', '/$')
function getHost(url = location.href) {
const match = location.href.match(/https?:\/\/[^\/]+\//);
return match ? match[0] : match;
}
function AsyncManager() {
const AM = this;
// Ongoing xhr count
this.taskCount = 0;
// Whether generate finish events
let finishEvent = false;
Object.defineProperty(this, 'finishEvent', {
configurable: true,
enumerable: true,
get: () => (finishEvent),
set: (b) => {
finishEvent = b;
b && AM.taskCount === 0 && AM.onfinish && AM.onfinish();
}
});
// Add one task
this.add = () => (++AM.taskCount);
// Finish one task
this.finish = () => ((--AM.taskCount === 0 && AM.finishEvent && AM.onfinish && AM.onfinish(), AM.taskCount));
}
// Polyfill String.prototype.replaceAll
// replaceValue does NOT support regexp match groups($1, $2, etc.)
function polyfill_replaceAll() {
String.prototype.replaceAll = String.prototype.replaceAll ? String.prototype.replaceAll : PF_replaceAll;
function PF_replaceAll(searchValue, replaceValue) {
const str = String(this);
if (searchValue instanceof RegExp) {
const global = RegExp(searchValue, 'g');
if (/\$/.test(replaceValue)) {
console.error('Error: Polyfilled String.protopype.replaceAll does support regexp groups');
};
return str.replace(global, replaceValue);
} else {
return str.split(searchValue).join(replaceValue);
}
}
}
function randint(min, max) {
return Math.floor(Math.random() * (max - min + 1)) + min;
}
// Replace model text with no mismatching of replacing replaced text
// e.g. replaceText('aaaabbbbccccdddd', {'a': 'b', 'b': 'c', 'c': 'd', 'd': 'e'}) === 'bbbbccccddddeeee'
// replaceText('abcdAABBAA', {'BB': 'AA', 'AAAAAA': 'This is a trap!'}) === 'abcdAAAAAA'
// replaceText('abcd{AAAA}BB}', {'{AAAA}': '{BB', '{BBBB}': 'This is a trap!'}) === 'abcd{BBBB}'
// replaceText('abcd', {}) === 'abcd'
/* Note:
replaceText will replace in sort of replacer's iterating sort
e.g. currently replaceText('abcdAABBAA', {'BBAA': 'TEXT', 'AABB': 'TEXT'}) === 'abcdAATEXT'
but remember: (As MDN Web Doc said,) Although the keys of an ordinary Object are ordered now, this was
not always the case, and the order is complex. As a result, it's best not to rely on property order.
So, don't expect replaceText will treat replacer key-values in any specific sort. Use replaceText to
replace irrelevance replacer keys only.
*/
function replaceText(text, replacer) {
if (Object.entries(replacer).length === 0) {return text;}
const [models, targets] = Object.entries(replacer);
const len = models.length;
let text_arr = [{text: text, replacable: true}];
for (const [model, target] of Object.entries(replacer)) {
text_arr = replace(text_arr, model, target);
}
return text_arr.map((text_obj) => (text_obj.text)).join('');
function replace(text_arr, model, target) {
const result_arr = [];
for (const text_obj of text_arr) {
if (text_obj.replacable) {
const splited = text_obj.text.split(model);
for (const part of splited) {
result_arr.push({text: part, replacable: true});
result_arr.push({text: target, replacable: false});
}
result_arr.pop();
} else {
result_arr.push(text_obj);
}
}
return result_arr;
}
}
// escape str into javascript written format
function escJsStr(str, quote='"') {
str = str.replaceAll('\\', '\\\\').replaceAll(quote, '\\' + quote);
quote === '`' && (str = str.replaceAll(/(\$\{[^\}]*\})/g, '\\$1'));
return quote + str + quote;
}
function parseArgs(args, rules, defaultValues=[]) {
// args and rules should be array, but not just iterable (string is also iterable)
if (!Array.isArray(args) || !Array.isArray(rules)) {
throw new TypeError('parseArgs: args and rules should be array')
}
// fill rules[0]
(!Array.isArray(rules[0]) || rules[0].length === 1) && rules.splice(0, 0, []);
// max arguments length
const count = rules.length - 1;
// args.length must <= count
if (args.length > count) {
throw new TypeError(`parseArgs: args has more elements(${args.length}) longer than ruless'(${count})`);
}
// rules[i].length should be === i if rules[i] is an array, otherwise it should be a function
for (let i = 1; i <= count; i++) {
const rule = rules[i];
if (Array.isArray(rule)) {
if (rule.length !== i) {
throw new TypeError(`parseArgs: rules[${i}](${rule}) should have ${i} numbers, but given ${rules[i].length}`);
}
if (!rule.every((num) => (typeof num === 'number' && num <= count))) {
throw new TypeError(`parseArgs: rules[${i}](${rule}) should contain numbers smaller than count(${count}) only`);
}
} else if (typeof rule !== 'function') {
throw new TypeError(`parseArgs: rules[${i}](${rule}) should be an array or a function.`)
}
}
// Parse
const rule = rules[args.length];
let parsed;
if (Array.isArray(rule)) {
parsed = [...defaultValues];
for (let i = 0; i < rule.length; i++) {
parsed[rule[i]-1] = args[i];
}
} else {
parsed = rule(args, defaultValues);
}
return parsed;
}
// Del a item from an array using its index. Returns the array but can NOT modify the original array directly!!
function delItem(arr, delIndex) {
arr = arr.slice(0, delIndex).concat(arr.slice(delIndex + 1));
return arr;
}
// type: [Error, TypeError]
function Err(msg, type=0) {
throw new [Error, TypeError][type]((typeof MODULE_DATA === 'object' ? '[' + MODULE_DATA.name + ']' : '') + msg);
}