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常用函数

自用函数 For wenku8++

当前为 2022-08-20 提交的版本，查看 最新版本。

此脚本不应直接安装。它是供其他脚本使用的外部库，要使用该库请加入元指令 // @require https://update.cn-greasyfork.org/scripts/449412/1083543/Basic%20Functions.js 

  1. /* eslint-disable no-multi-spaces */
  2.  
  3. // ==UserScript==
  4. // @name               Basic Functions
  5. // @name:zh-CN         常用函数
  6. // @name:en            Basic Functions
  7. // @namespace          Wenku8++
  8. // @version            0.2
  9. // @description        自用函数 For wenku8++
  10. // @description:zh-CN  自用函数 For wenku8++
  11. // @description:en     Useful functions for myself
  12. // @author             PY-DNG
  13. // @license            GPL-license
  14. // @grant              GM_info
  15. // @grant              GM_addStyle
  16. // @grant              GM_addElement
  17. // @grant              GM_deleteValue
  18. // @grant              GM_listValues
  19. // @grant              GM_addValueChangeListener
  20. // @grant              GM_removeValueChangeListener
  21. // @grant              GM_setValue
  22. // @grant              GM_getValue
  23. // @grant              GM_log
  24. // @grant              GM_getResourceText
  25. // @grant              GM_getResourceURL
  26. // @grant              GM_registerMenuCommand
  27. // @grant              GM_unregisterMenuCommand
  28. // @grant              GM_openInTab
  29. // @grant              GM_xmlhttpRequest
  30. // @grant              GM_download
  31. // @grant              GM_getTab
  32. // @grant              GM_saveTab
  33. // @grant              GM_getTabs
  34. // @grant              GM_notification
  35. // @grant              GM_setClipboard
  36. // @grant              GM_info
  37. // @grant              unsafeWindow
  38. // ==/UserScript==
  39.  
  40. const LogLevel = {
  41. 	None: 0,
  42. 	Error: 1,
  43. 	Success: 2,
  44. 	Warning: 3,
  45. 	Info: 4,
  46. }
  47.  
  48. // Arguments: level=LogLevel.Info, logContent, asObject=false
  49. // Needs one call "DoLog();" to get it initialized before using it!
  50. function DoLog() {
  51. 	// Get window
  52. 	const win = (typeof(unsafeWindow) === 'object' && unsafeWindow !== null) ? unsafeWindow : window;
  53.  
  54. 	// Global log levels set
  55. 	LogLevel = {
  56. 		None: 0,
  57. 		Error: 1,
  58. 		Success: 2,
  59. 		Warning: 3,
  60. 		Info: 4,
  61. 	}
  62. 	const LogLevelMap = {};
  63. 	LogLevelMap[LogLevel.None] = {
  64. 		prefix: '',
  65. 		color: 'color:#ffffff'
  66. 	}
  67. 	LogLevelMap[LogLevel.Error] = {
  68. 		prefix: '[Error]',
  69. 		color: 'color:#ff0000'
  70. 	}
  71. 	LogLevelMap[LogLevel.Success] = {
  72. 		prefix: '[Success]',
  73. 		color: 'color:#00aa00'
  74. 	}
  75. 	LogLevelMap[LogLevel.Warning] = {
  76. 		prefix: '[Warning]',
  77. 		color: 'color:#ffa500'
  78. 	}
  79. 	LogLevelMap[LogLevel.Info] = {
  80. 		prefix: '[Info]',
  81. 		color: 'color:#888888'
  82. 	}
  83. 	LogLevelMap[LogLevel.Elements] = {
  84. 		prefix: '[Elements]',
  85. 		color: 'color:#000000'
  86. 	}
  87.  
  88. 	// Current log level
  89. 	DoLog.logLevel = win.isPY_DNG ? LogLevel.Info : LogLevel.Warning; // Info Warning Success Error
  90.  
  91. 	// Log counter
  92. 	DoLog.logCount === undefined && (DoLog.logCount = 0);
  93.  
  94. 	// Get args
  95. 	let level, logContent, asObject;
  96. 	switch (arguments.length) {
  97. 		case 1:
  98. 			level = LogLevel.Info;
  99. 			logContent = arguments[0];
  100. 			asObject = false;
  101. 			break;
  102. 		case 2:
  103. 			level = arguments[0];
  104. 			logContent = arguments[1];
  105. 			asObject = false;
  106. 			break;
  107. 		case 3:
  108. 			level = arguments[0];
  109. 			logContent = arguments[1];
  110. 			asObject = arguments[2];
  111. 			break;
  112. 		default:
  113. 			level = LogLevel.Info;
  114. 			logContent = 'DoLog initialized.';
  115. 			asObject = false;
  116. 			break;
  117. 	}
  118.  
  119. 	// Log when log level permits
  120. 	if (level <= DoLog.logLevel) {
  121. 		let msg = '%c' + LogLevelMap[level].prefix + (typeof MODULE_DATA === 'object' ? '[' + MODULE_DATA.name + ']' : '');
  122. 		let subst = LogLevelMap[level].color;
  123.  
  124. 		if (asObject) {
  125. 			msg += ' %o';
  126. 		} else {
  127. 			switch (typeof(logContent)) {
  128. 				case 'string':
  129. 					msg += ' %s';
  130. 					break;
  131. 				case 'number':
  132. 					msg += ' %d';
  133. 					break;
  134. 				case 'object':
  135. 					msg += ' %o';
  136. 					break;
  137. 			}
  138. 		}
  139.  
  140. 		if (++DoLog.logCount > 512) {
  141. 			console.clear();
  142. 			DoLog.logCount = 0;
  143. 		}
  144. 		console.log(msg, subst, logContent);
  145. 	}
  146. }
  147. DoLog();
  148.  
  149. // Basic functions
  150. // querySelector
  151. function $() {
  152. 	switch (arguments.length) {
  153. 		case 2:
  154. 			return arguments[0].querySelector(arguments[1]);
  155. 			break;
  156. 		default:
  157. 			return document.querySelector(arguments[0]);
  158. 	}
  159. }
  160. // querySelectorAll
  161. function $All() {
  162. 	switch (arguments.length) {
  163. 		case 2:
  164. 			return arguments[0].querySelectorAll(arguments[1]);
  165. 			break;
  166. 		default:
  167. 			return document.querySelectorAll(arguments[0]);
  168. 	}
  169. }
  170. // createElement
  171. function $CrE() {
  172. 	switch (arguments.length) {
  173. 		case 2:
  174. 			return arguments[0].createElement(arguments[1]);
  175. 			break;
  176. 		default:
  177. 			return document.createElement(arguments[0]);
  178. 	}
  179. }
  180. // Object1[prop] ==> Object2[prop]
  181. function copyProp(obj1, obj2, prop) {
  182. 	obj1.hasOwnProperty(prop) && (obj2[prop] = obj1[prop]);
  183. }
  184. function copyProps(obj1, obj2, props) {
  185. 	props.forEach((prop) => (copyProp(obj1, obj2, prop)));
  186. }
  187.  
  188. // Just stopPropagation and preventDefault
  189. function destroyEvent(e) {
  190. 	if (!e) {
  191. 		return false;
  192. 	};
  193. 	if (!e instanceof Event) {
  194. 		return false;
  195. 	};
  196. 	e.stopPropagation();
  197. 	e.preventDefault();
  198. }
  199.  
  200. // GM_XHR HOOK: The number of running GM_XHRs in a time must under maxXHR
  201. // Returns the abort function to stop the request anyway(no matter it's still waiting, or requesting)
  202. // (If the request is invalid, such as url === '', will return false and will NOT make this request)
  203. // If the abort function called on a request that is not running(still waiting or finished), there will be NO onabort event
  204. // Requires: function delItem(){...} & function uniqueIDMaker(){...}
  205. function GMXHRHook(maxXHR = 5) {
  206. 	const GM_XHR = GM_xmlhttpRequest;
  207. 	const getID = uniqueIDMaker();
  208. 	let todoList = [],
  209. 		ongoingList = [];
  210. 	GM_xmlhttpRequest = safeGMxhr;
  211.  
  212. 	function safeGMxhr() {
  213. 		// Get an id for this request, arrange a request object for it.
  214. 		const id = getID();
  215. 		const request = {
  216. 			id: id,
  217. 			args: arguments,
  218. 			aborter: null
  219. 		};
  220.  
  221. 		// Deal onload function first
  222. 		dealEndingEvents(request);
  223.  
  224. 		/* DO NOT DO THIS! KEEP ITS ORIGINAL PROPERTIES!
  225. 		// Stop invalid requests
  226. 		if (!validCheck(request)) {
  227. 			return false;
  228. 		}
  229. 		*/
  230.  
  231. 		// Judge if we could start the request now or later?
  232. 		todoList.push(request);
  233. 		checkXHR();
  234. 		return makeAbortFunc(id);
  235.  
  236. 		// Decrease activeXHRCount while GM_XHR onload;
  237. 		function dealEndingEvents(request) {
  238. 			const e = request.args[0];
  239.  
  240. 			// onload event
  241. 			const oriOnload = e.onload;
  242. 			e.onload = function() {
  243. 				reqFinish(request.id);
  244. 				checkXHR();
  245. 				oriOnload ? oriOnload.apply(null, arguments) : function() {};
  246. 			}
  247.  
  248. 			// onerror event
  249. 			const oriOnerror = e.onerror;
  250. 			e.onerror = function() {
  251. 				reqFinish(request.id);
  252. 				checkXHR();
  253. 				oriOnerror ? oriOnerror.apply(null, arguments) : function() {};
  254. 			}
  255.  
  256. 			// ontimeout event
  257. 			const oriOntimeout = e.ontimeout;
  258. 			e.ontimeout = function() {
  259. 				reqFinish(request.id);
  260. 				checkXHR();
  261. 				oriOntimeout ? oriOntimeout.apply(null, arguments) : function() {};
  262. 			}
  263.  
  264. 			// onabort event
  265. 			const oriOnabort = e.onabort;
  266. 			e.onabort = function() {
  267. 				reqFinish(request.id);
  268. 				checkXHR();
  269. 				oriOnabort ? oriOnabort.apply(null, arguments) : function() {};
  270. 			}
  271. 		}
  272.  
  273. 		// Check if the request is invalid
  274. 		function validCheck(request) {
  275. 			const e = request.args[0];
  276.  
  277. 			if (!e.url) {
  278. 				return false;
  279. 			}
  280.  
  281. 			return true;
  282. 		}
  283.  
  284. 		// Call a XHR from todoList and push the request object to ongoingList if called
  285. 		function checkXHR() {
  286. 			if (ongoingList.length >= maxXHR) {
  287. 				return false;
  288. 			};
  289. 			if (todoList.length === 0) {
  290. 				return false;
  291. 			};
  292. 			const req = todoList.shift();
  293. 			const reqArgs = req.args;
  294. 			const aborter = GM_XHR.apply(null, reqArgs);
  295. 			req.aborter = aborter;
  296. 			ongoingList.push(req);
  297. 			return req;
  298. 		}
  299.  
  300. 		// Make a function that aborts a certain request
  301. 		function makeAbortFunc(id) {
  302. 			return function() {
  303. 				let i;
  304.  
  305. 				// Check if the request haven't been called
  306. 				for (i = 0; i < todoList.length; i++) {
  307. 					const req = todoList[i];
  308. 					if (req.id === id) {
  309. 						// found this request: haven't been called
  310. 						delItem(todoList, i);
  311. 						return true;
  312. 					}
  313. 				}
  314.  
  315. 				// Check if the request is running now
  316. 				for (i = 0; i < ongoingList.length; i++) {
  317. 					const req = todoList[i];
  318. 					if (req.id === id) {
  319. 						// found this request: running now
  320. 						req.aborter();
  321. 						reqFinish(id);
  322. 						checkXHR();
  323. 					}
  324. 				}
  325.  
  326. 				// Oh no, this request is already finished...
  327. 				return false;
  328. 			}
  329. 		}
  330.  
  331. 		// Remove a certain request from ongoingList
  332. 		function reqFinish(id) {
  333. 			let i;
  334. 			for (i = 0; i < ongoingList.length; i++) {
  335. 				const req = ongoingList[i];
  336. 				if (req.id === id) {
  337. 					ongoingList = delItem(ongoingList, i);
  338. 					return true;
  339. 				}
  340. 			}
  341. 			return false;
  342. 		}
  343. 	}
  344. }
  345.  
  346. // Get a url argument from lacation.href
  347. // also recieve a function to deal the matched string
  348. // returns defaultValue if name not found
  349. // Args: {url=location.href, name, dealFunc=((a)=>{return a;}), defaultValue=null} or 'name'
  350. function getUrlArgv(details) {
  351. 	typeof(details) === 'string' && (details = {
  352. 		name: details
  353. 	});
  354. 	typeof(details) === 'undefined' && (details = {});
  355. 	if (!details.name) {
  356. 		return null;
  357. 	};
  358.  
  359. 	const url = details.url ? details.url : location.href;
  360. 	const name = details.name ? details.name : '';
  361. 	const dealFunc = details.dealFunc ? details.dealFunc : ((a) => {
  362. 		return a;
  363. 	});
  364. 	const defaultValue = details.defaultValue ? details.defaultValue : null;
  365. 	const matcher = new RegExp('[\\?&]' + name + '=([^&#]+)');
  366. 	const result = url.match(matcher);
  367. 	const argv = result ? dealFunc(result[1]) : defaultValue;
  368.  
  369. 	return argv;
  370. }
  371.  
  372. // Append a style text to document(<head>) with a <style> element
  373. function addStyle(css, id) {
  374. 	const style = document.createElement("style");
  375. 	id && (style.id = id);
  376. 	style.textContent = css;
  377. 	for (const elm of document.querySelectorAll('#' + id)) {
  378. 		elm.parentElement && elm.parentElement.removeChild(elm);
  379. 	}
  380. 	document.head.appendChild(style);
  381. }
  382.  
  383. // Save dataURL to file
  384. function saveFile(dataURL, filename) {
  385. 	const a = document.createElement('a');
  386. 	a.href = dataURL;
  387. 	a.download = filename;
  388. 	a.click();
  389. }
  390.  
  391. // File download function
  392. // details looks like the detail of GM_xmlhttpRequest
  393. // onload function will be called after file saved to disk
  394. function downloadFile(details) {
  395. 	if (!details.url || !details.name) {
  396. 		return false;
  397. 	};
  398.  
  399. 	// Configure request object
  400. 	const requestObj = {
  401. 		url: details.url,
  402. 		responseType: 'blob',
  403. 		onload: function(e) {
  404. 			// Save file
  405. 			saveFile(URL.createObjectURL(e.response), details.name);
  406.  
  407. 			// onload callback
  408. 			details.onload ? details.onload(e) : function() {};
  409. 		}
  410. 	}
  411. 	if (details.onloadstart) {
  412. 		requestObj.onloadstart = details.onloadstart;
  413. 	};
  414. 	if (details.onprogress) {
  415. 		requestObj.onprogress = details.onprogress;
  416. 	};
  417. 	if (details.onerror) {
  418. 		requestObj.onerror = details.onerror;
  419. 	};
  420. 	if (details.onabort) {
  421. 		requestObj.onabort = details.onabort;
  422. 	};
  423. 	if (details.onreadystatechange) {
  424. 		requestObj.onreadystatechange = details.onreadystatechange;
  425. 	};
  426. 	if (details.ontimeout) {
  427. 		requestObj.ontimeout = details.ontimeout;
  428. 	};
  429.  
  430. 	// Send request
  431. 	GM_xmlhttpRequest(requestObj);
  432. }
  433.  
  434. // get '/' splited API array from a url
  435. function getAPI(url = location.href) {
  436. 	return url.replace(/https?:\/\/(.*?\.){1,2}.*?\//, '').replace(/\?.*/, '').match(/[^\/]+?(?=(\/|$))/g);
  437. }
  438.  
  439. // get host part from a url(includes '^https://', '/$')
  440. function getHost(url = location.href) {
  441. 	const match = location.href.match(/https?:\/\/[^\/]+\//);
  442. 	return match ? match[0] : match;
  443. }
  444.  
  445. function AsyncManager() {
  446. 	const AM = this;
  447.  
  448. 	// Ongoing xhr count
  449. 	this.taskCount = 0;
  450.  
  451. 	// Whether generate finish events
  452. 	let finishEvent = false;
  453. 	Object.defineProperty(this, 'finishEvent', {
  454. 		configurable: true,
  455. 		enumerable: true,
  456. 		get: () => (finishEvent),
  457. 		set: (b) => {
  458. 			finishEvent = b;
  459. 			b && AM.taskCount === 0 && AM.onfinish && AM.onfinish();
  460. 		}
  461. 	});
  462.  
  463. 	// Add one task
  464. 	this.add = () => (++AM.taskCount);
  465.  
  466. 	// Finish one task
  467. 	this.finish = () => ((--AM.taskCount === 0 && AM.finishEvent && AM.onfinish && AM.onfinish(), AM.taskCount));
  468. }
  469.  
  470. // Polyfill String.prototype.replaceAll
  471. // replaceValue does NOT support regexp match groups($1, $2, etc.)
  472. function polyfill_replaceAll() {
  473. 	String.prototype.replaceAll = String.prototype.replaceAll ? String.prototype.replaceAll : PF_replaceAll;
  474.  
  475. 	function PF_replaceAll(searchValue, replaceValue) {
  476. 		const str = String(this);
  477.  
  478. 		if (searchValue instanceof RegExp) {
  479. 			const global = RegExp(searchValue, 'g');
  480. 			if (/\$/.test(replaceValue)) {
  481. 				console.error('Error: Polyfilled String.protopype.replaceAll does support regexp groups');
  482. 			};
  483. 			return str.replace(global, replaceValue);
  484. 		} else {
  485. 			return str.split(searchValue).join(replaceValue);
  486. 		}
  487. 	}
  488. }
  489.  
  490. function randint(min, max) {
  491. 	return Math.floor(Math.random() * (max - min + 1)) + min;
  492. }
  493.  
  494. // Del a item from an array using its index. Returns the array but can NOT modify the original array directly!!
  495. function delItem(arr, delIndex) {
  496. 	arr = arr.slice(0, delIndex).concat(arr.slice(delIndex + 1));
  497. 	return arr;
  498. }