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vanilla-lib

Vanilla JS library

当前为 2018-07-16 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.gf.qytechs.cn/scripts/369430/613140/vanilla-lib.js 

  1. function VanillaLib( ) {
  2. 	'use strict';
  3. 	let  self = { version:'1.2.180702.0744' },
  4. 	     undefined;  // ensure an 'undefined' reference
  5.  
  6. 	// Logging related
  7. 	self.logging  = true;
  8. 	self.logGroup = function( ) { return ! self.logging ? false : console.groupCollapsed.apply(console, arguments); };
  9. 	self.logEnd   = function( ) { return ! self.logging ? false : console.groupEnd.apply(console, arguments); };
  10. 	self.time     = function( ) { return ! self.logging ? false : console.time.apply(console, arguments); };
  11. 	self.timeEnd  = function( ) { return ! self.logging ? false : console.timeEnd.apply(console, arguments); };
  12. 	self.warn     = function( ) { return ! self.logging ? false : console.warn.apply(console, arguments); };
  13. 	self.log      = function( ) { return ! self.logging ? false : console.debug.apply(console, arguments); };
  14. 	// Core functionality
  15. 	self.ownsIt = ( obj,prop ) => ( !! prop && self.isobj(obj, true) && obj.hasOwnProperty(prop) );
  16. 	self.hasval = expr => ( null !== expr && ! self.ndef(expr) );
  17. 	self.isbool = expr => ( 'boolean' === typeof expr );
  18. 	self.ifndef = ( expr,value ) => ( self.ndef(expr) ? value : expr );
  19. 	self.ifnan  = ( expr,value ) => ( isNaN(expr) ? value : expr );
  20. 	self.isarr  = expr => self.isobj(expr, Array);
  21. 	self.isnum  = expr => ( 'number' === typeof expr );
  22. 	self.isstr  = expr => ( 'string' === typeof expr );
  23. 	self.isfn   = expr => ( 'function' === typeof expr );
  24. 	self.ndef   = expr => ( 'undefined' === typeof expr );
  25. 	// Miscelaneous
  26. 	self.mapFlat = ( array,func ) => array.map( x => func(x) ).reduce( (a,b) => a.concat(b) );
  27. 	self.ispojo  = expr => self.isobj(expr, Object);
  28. 	self.test    = ( expr,func,other ) => ( !! expr ? func(expr) : self.isfn(other) ? other(expr) : other );
  29. 	// DOM related
  30. 	self.parenth = ( elem,nth ) => self.traverse(elem, self.ifndef(nth, 1), 0);
  31. 	self.html    = ( elem,val ) => self.test(elem, el => self.ndef(val) ? el.innerHTML : (el.innerHTML = val) );
  32. 	self.text    = ( elem,val ) => self.test(elem, el => self.ndef(val) ? el.innerText : (el.innerText = val) );
  33. 	self.$$      = ( sel,elem ) => Array.slice((elem || document).querySelectorAll(sel));
  34. 	self.$       = ( sel,elem ) => (elem || document).querySelector(sel);
  35. 	// Number related
  36. 	self.aggRate = ( amnt,rate,times ) => ( times < 1 ? amnt : self.aggRate(amnt * rate, rate, times - 1) );
  37. 	self.toDec   = expr => ( Math.round(parseFloat((expr +'').replace(/\$|,/g, '')) * 100) / 100 );
  38. 	// Time related
  39. 	self.secondsIn    = ( from,to,other ) => self.ifnan((to - from) /     1000, self.ifndef(other, NaN));
  40. 	self.minutesIn    = ( from,to,other ) => self.ifnan((to - from) /    60000, self.ifndef(other, NaN));
  41. 	self.hoursIn      = ( from,to,other ) => self.ifnan((to - from) /  3600000, self.ifndef(other, NaN));
  42. 	self.daysIn       = ( from,to,other ) => self.ifnan((to - from) / 86400000, self.ifndef(other, NaN));
  43. 	self.secondsSince = ( from,other ) => self.secondsIn(from, Date.now(), other);
  44. 	self.minutesSince = ( from,other ) => self.minutesIn(from, Date.now(), other);
  45. 	self.hoursSince   = ( from,other ) => self.hoursIn(from,   Date.now(), other);
  46. 	self.daysSince    = ( from,other ) => self.daysIn(from,    Date.now(), other);
  47.  
  48.  
  49. 	self.addClass = function( element, name ) {
  50. 		if ( !! element && !! name ) {
  51. 			if ( self.isarr(element) ) {
  52. 				return  element.map( elem => self.addClass(elem, name) );
  53. 			}
  54.  
  55. 			name = ( self.isarr(name) ? name : name.split(',') );
  56. 			name = name.map( nm => nm.trim() )
  57. 			       	.filter( nm => ! element.classList.contains(nm) );
  58. 			element.className = (element.className +' '+ name.join(' ')).trim();
  59. 			return  true;
  60. 		}
  61. 		return  false;
  62. 	};
  63.  
  64. 	self.appendTo = function( element, parent, reference ) {
  65. 		if ( !! reference ) {
  66. 			parent    = reference.parentNode;
  67. 			reference = reference.nextSibling;
  68. 		}
  69.  
  70. 		if ( !! reference ) {
  71. 			return  self.prependTo(element, parent, reference);
  72. 		} else  if ( !! parent ) {
  73. 			parent.append(element);
  74. 		} else {
  75. 			self.warn('*** appendTo() could not add element: No parent or reference element provided');
  76. 		}
  77.  
  78. 		return  element;
  79. 	};
  80.  
  81. 	self.attr = function( element, name, value ) {
  82. 		if ( !! element ) {
  83. 			if ( self.isarr(element) ) {
  84. 				return  element.map( elem => self.attr(elem, name, value) );
  85. 			}
  86.  
  87. 			return  self.keysAndValues(name, value, ( n,v ) => {
  88. 				return  ( self.hasval(v) ? element.setAttribute(n, v)
  89. 				          : null === v ? element.removeAttribute(n) : element.getAttribute(n) );
  90. 			} );
  91. 		}
  92. 		return  element;
  93. 	};
  94.  
  95. 	self.choose = function( index, values ) {
  96. 		return  Array.slice(arguments)[ index ];
  97. 	}
  98.  
  99. 	self.create = function( html, containerType ) {
  100. 		let  container = null,
  101. 		     result    = null,
  102. 		     attrs, style;
  103.  
  104. 		if ( self.isobj(containerType) ) {
  105. 			attrs         = containerType.attrs;
  106. 			style         = containerType.style;
  107. 			containerType = containerType.container;
  108. 		}
  109.  
  110. 		containerType = containerType || 'div';
  111. 		create[ containerType ] =
  112. 		container               = self.create[ containerType ] || document.createElement(containerType);
  113. 		container.innerHTML = html;
  114. 		result = Array.slice(container.childNodes)
  115. 		         	.map( elem => (elem.remove(), elem) );
  116.  
  117. 		if ( !! attrs ) {
  118. 			self.attr(result, attrs);
  119. 		}
  120. 		if ( !! style ) {
  121. 			self.css(result, style);
  122. 		}
  123.  
  124. 		if ( 1 == result.length ) {
  125. 			result = result[ 0 ];
  126. 		}
  127. 		return  result;
  128. 	};
  129.  
  130. 	self.createXHR = function( ) {
  131. 		let  xhr = new XMLHttpRequest( );
  132. 		xhr.onabort = function( ev, xhr ) { self.log('XHR Abort:', ev, xhr, this); };
  133. 		xhr.onerror = function( ev, xhr ) { self.log('XHR Error:', ev, xhr, this); };
  134. 		xhr.onload  = function( ev, xhr ) { self.log('XHR Load:',  ev, xhr, this); };
  135. 		self.on(xhr, {
  136. 			'abort': function( ev ) { self.isfn(this.onabort) && this.onabort(ev, this); },
  137. 			'error': function( ev ) { self.isfn(this.onerror) && this.onerror(ev, this); },
  138. 			'load':  function( ev ) { self.isfn(this.onload)  && this.onload(ev, this); },
  139. 		});
  140. 		return  xhr;
  141. 	};
  142.  
  143. 	self.css = function( element, key, value ) {
  144. 		if ( isarr(element) ) {
  145. 			return  element.map( el => css(el, key, value) );
  146. 		}
  147.  
  148. 		keysAndValues(key, value, ( k,v ) => element.style[ k ] = v );
  149. 		return  element;
  150. 	};
  151.  
  152. 	self.extend = function( target, sources ) {
  153. 		for ( let  i = 1, n = arguments.length;  i < n;  i ++ ) {
  154. 			self.isobj(arguments[ i ], true) && self.copyMembers(arguments[ i ], target);
  155. 		}
  156. 		return  target;
  157. 	};
  158.  
  159. 	self.fire = function( elem, event, args ) {
  160. 		if ( self.isstr(event) ) {
  161. 			args  = self.ifndef(args, { 'bubbles':true, 'cancelable':true });
  162. 			event = new Event( event, args );
  163. 		}
  164. 		return  elem.dispatchEvent(event);
  165. 	};
  166.  
  167. 	self.isobj = function( expr, type ) {
  168. 		if ( 'object' !== typeof expr ) {
  169. 			return  false;
  170. 		} else if ( true === type ) {
  171. 			return  ( null !== expr );
  172. 		} else if ( self.isfn(type) ) {
  173. 			return  ( type === expr.constructor );
  174. 		} else if ( self.isstr(type) ) {
  175. 			return  ( !! expr.constructor && type === expr.constructor.name );
  176. 		}
  177. 		return  true;
  178. 	}
  179.  
  180. 	self.keysAndValues = function( key, value, action ) {
  181. 		if ( self.ndef(action) && self.isfn(value) ) {
  182. 			action = value;
  183. 			value  = undefined;
  184. 		}
  185.  
  186. 		// Case 1: key is an object (and there is no value)
  187. 		if ( self.isobj(key) && ! value ) {
  188. 			return  Object.keys(key)
  189. 			        	.map( k => action(k, key[ k ]) );
  190. 		// Case 2: key is an array
  191. 		} else if ( self.isarr(key) ) {
  192. 			// Case 1.a: value is an array of the same length
  193. 			if ( self.isarr(value) && key.length === value.length ) {
  194. 				return  key.map( ( k,i ) => action(k, value[ i ]) );
  195. 			// Case 1.b: value is considered a simple, plain value
  196. 			} else {
  197. 				return  key.map( k => action(k, value) );
  198. 			}
  199. 		// Default Case: key and value considered as simple, plain values
  200. 		} else {
  201. 			return  action(key, value);
  202. 		}
  203. 	};
  204.  
  205. 	self.localJson = function( key, value ) {
  206. 		if ( !! key && self.isstr(key) ) {
  207. 			try {
  208. 				if ( self.ndef(value) ) {
  209. 					return  JSON.parse(localStorage.getItem(key));
  210. 				} else if ( null === value ) {
  211. 					return  localStorage.removeItem(key);
  212. 				} else {
  213. 					return  localStorage.setItem(key, JSON.stringify(value));
  214. 				}
  215. 			} catch ( error ) {
  216. 				self.warn('* localJson() error:', error, '\n\tfor:', key, value);
  217. 			}
  218. 		}
  219. 		return  null;
  220. 	};
  221.  
  222. 	self.off = function( element, event, callback ) {
  223. 		if ( self.ndef(callback) && self.isobj(event) ) {
  224. 			return  self.keysAndValues(event, ( k,v ) => self.off(element, k, v) );
  225. 		} else if ( self.isarr(element) ) {
  226. 			return  element.map( elem => self.off(elem, event, callback) );
  227. 		}
  228. 		return  element.removeEventListener(event, callback);
  229. 	};
  230.  
  231. 	self.on = function( element, event, callback ) {
  232. 		if ( self.ndef(callback) && self.isobj(event) ) {
  233. 			return  self.keysAndValues(event, ( k,v ) => self.on(element, k, v) );
  234. 		} else if ( self.isarr(element) ) {
  235. 			return  element.map( elem => self.on(elem, event, callback) );
  236. 		}
  237. 		return  element.addEventListener(event, callback);
  238. 	};
  239.  
  240. 	self.onmutate = function( element, callback, config ) {
  241. 		if ( !! element && self.isfn(callback) ) {
  242. 			config = config || { 'attributes':false, 'childList':true, 'subtree':false };
  243.  
  244. 			if ( self.isarr(element) ) {
  245. 				return  element.map( elem => self.onmutate(elem, callback, config) );
  246. 			}
  247.  
  248. 			let  observer = new MutationObserver( callback );
  249. 			observer.initialConfig = ( ) => config;
  250. 			observer.reconnect = function( newConfig ) {
  251. 				this.observe(element, newConfig || this.initialConfig());
  252. 				return  this;
  253. 			};
  254. 			return  observer.reconnect();
  255. 		}
  256. 		return  null;
  257. 	};
  258.  
  259. 	self.pojo2query = function( pojo ) {
  260. 		if ( self.isobj(pojo) && !! pojo ) {
  261. 			let  query = Object.keys(pojo)
  262. 			             	.map( key => escape(key) +'='+ escape(pojo[ key ]) )
  263. 			             	.join('&');
  264. 			return  '?'+ query;
  265. 		}
  266. 		return  null;
  267. 	};
  268.  
  269. 	self.prependTo = function( element, parent, reference ) {
  270. 		if ( ! reference && !! parent ) {
  271. 			reference = parent.childNodes[ 0 ];
  272. 		}
  273.  
  274. 		if ( !! reference ) {
  275. 			reference.parentNode.insertBefore(element, reference);
  276. 		} else if ( !! parent ) {
  277. 			parent.append(element);
  278. 		} else {
  279. 			self.warn('*** prependTo() could not add element: No parent or reference element provided');
  280. 		}
  281.  
  282. 		return  element;
  283. 	};
  284.  
  285. 	self.query2pojo = function( query ) {
  286. 		query = (self.ifndef(query, location.search) +'')
  287. 		        	.replace(/^[?&]+|$&+/g, '');
  288. 		if ( !! query ) {
  289. 			let  segs, key, val, pojo = { };
  290. 			query.split('&')
  291. 				.forEach( item => {
  292. 					[ key, val ] =
  293. 					segs         = item.split('=');
  294. 					val = ( self.ndef(val) ? null : segs.slice(1).join('=') );
  295. 					pojo[ unescape(key) ] = val;
  296. 				} );
  297. 			return  pojo;
  298. 		}
  299. 		return  null;
  300. 	};
  301.  
  302. 	self.request = function( url, verb, data, callback ) {
  303. 		self.log('* request of:', verb, url, data, callback);
  304.  
  305. 		// "Validate" HTTP Verb, to an extent
  306. 		verb = (verb || 'GET').toUpperCase();
  307. 		switch ( verb ) {
  308. 			case  'P':  verb = 'POST';  break;
  309. 			case  'G':  verb = 'GET';   break;
  310. 			case  'H':  verb = 'HEAD';  break;
  311. 		}
  312.  
  313. 		// Switch callback and data when ther is no data
  314. 		if ( self.ndef(callback) && self.isfn(data) ) {
  315. 			callback = data;
  316. 			data     = null;
  317. 		}
  318.  
  319. 		// Set the data to a string or null
  320. 		data = self.ifndef(data, null);
  321. 		data = ( !! data && self.isobj(data) ? self.pojo2query(data).replace('?', '') : data.toString() );
  322. 		self.log('- request data:', data);
  323.  
  324. 		// Add data to the URL for GET requests
  325. 		if ( 'GET' === verb && !! data ) {
  326. 			url += ( url.includes('?') ? '&' : '?' ) + data;
  327. 			data = null;
  328. 		}
  329.  
  330. 		// Create & open XHR object...
  331. 		let  xhr = self.createXHR();
  332. 		self.log('-> opening request:', verb, url);
  333. 		xhr.open(verb, url);
  334. 		xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
  335.  
  336. 		// Set the internal event handler, which removes itself on execution
  337. 		xhr.onabort =
  338. 		xhr.onerror =
  339. 		xhr.onload  = callback;
  340.  
  341. 		// Send the actual request
  342. 		self.log('-> sending request:', data, xhr.readyState, xhr);
  343. 		return  xhr.send(data);
  344. 	};
  345.  
  346. 	self.table2json = function( table, headers, filter ) {
  347. 		if ( !! table && !! table.rows ) {
  348. 			let  obj = { head:[ ], data:[ ] };
  349.  
  350. 			obj.head = ( self.isfn(headers) ? headers(table) : table.rows[ 0 ] );
  351. 			if ( self.isobj(obj.head) && !! obj.head.cells ) {
  352. 				obj.head = Array.map(obj.head.cells, th => th.innerText.trim() );
  353. 			}
  354.  
  355. 			if ( obj.head.length ) {
  356. 				filter = filter || (( row,i ) => ( i && 'TBODY' === row.parentNode.nodeName ));
  357.  
  358. 				for ( let  r = 0, nr = table.rows.length;  r < nr;  r ++ ) {
  359. 					let  row = table.rows[ r ];
  360.  
  361. 					if ( filter(row, r) ) {
  362. 						let   item = { };
  363. 						obj.head.forEach( ( col,i ) => {
  364. 							col[ 0 ] && (item[ col ] = row.cells[ i ].innerText.trim());
  365. 						} );
  366. 						obj.data.push(item);
  367. 					}
  368. 				}
  369. 			}
  370. 			return  obj.data;
  371. 		}
  372. 		return  null;
  373. 	};
  374.  
  375. 	self.toArray = function( expr ) {
  376. 		if ( self.hasval(expr) && ! self.isarr(expr) ) {
  377. 			return  ( self.ndef(expr.length) ? [ expr ] : Array.slice(expr) );
  378. 		}
  379. 		return  expr || [ ];
  380. 	};
  381.  
  382. 	self.toDec2 = function( amount ) {
  383. 		amount = self.toDec(amount);
  384. 		if ( isNaN(amount) ) {
  385. 			return  null;
  386. 		}
  387. 		let  segs = (amount +'').split('.');
  388. 		return  segs[ 0 ] +'.'+ ((segs[ 1 ] || 0) +'0').slice(0, 2);
  389. 	};
  390.  
  391. 	self.toMoney = function( amount ) {
  392. 		let  dec2 = self.toDec2(amount);
  393. 		return  ( isNaN(dec2) ? null : dec2 < 0 ? '-$ '+ (-dec2) : '$ '+ dec2 );
  394. 	};
  395.  
  396. 	self.traverse = function( elem, up, sideways, elementsOnly, lastIfNull ) {
  397. 		let  last = elem;
  398. 		while ( !! elem && up -- > 0 )  elem = (last = elem, elem.parentNode);
  399.  
  400. 		let  prop = ( elementsOnly ? 'Element' : '' ) +'Sibling';
  401. 		if ( sideways < 0 ) {
  402. 			while ( !! elem && sideways ++ < 0 )  elem = (last = elem, elem[ 'previous'+ prop ]);
  403. 		} else if ( sideways > 0 ) {
  404. 			while ( !! elem && sideways -- > 0 )  elem = (last = elem, elem[ 'next'+ prop ]);
  405. 		}
  406.  
  407. 		return  ( ! lastIfNull ? elem : elem || last );
  408. 	};
  409.  
  410. 	// ----------------------------------------------------
  411. 	// Intended for Internal Use
  412.  
  413. 	self.copyMembers = function( source, target, members, preserve ) {
  414. 		//self.log('* Copying from', source, '\n\tto', target, '\n\t'+ members, preserve);
  415. 		if ( ! self.isobj(source) || ! self.isobj(target) ) {
  416. 			self.warn('=> Cannot copy from/to non-objects');
  417. 			return  false;
  418. 		}
  419.  
  420. 		let  names = Object.keys(source);
  421. 		preserve = ( self.isobj(preserve) ? preserve : false );
  422. 		//self.log('- Full list of members:', names, '\n\t', source);
  423.  
  424. 		if ( self.isstr(members) ) {
  425. 			members = members.split(',').map( nm => nm.trim() );
  426. 		}
  427. 		if ( self.isarr(members) ) {
  428. 			//self.log('* Member filter:', members);
  429. 			names = names.filter( nm => members.includes(nm) );
  430. 		} else if ( self.isfn(members) ) {
  431. 			names = names.filter(members);
  432. 		}
  433. 		//self.log('- Filtered list of members:', names);
  434.  
  435. 		names.forEach( nm => {
  436. 			if ( !! target[ nm ] && !! preserve ) {
  437. 				preserve[ nm ] = target[ nm ];
  438. 			}
  439. 			target[ nm ] = source[ nm ];
  440. 			//self.log('- Target members', nm, target[ nm ]);
  441. 		} );
  442. 		//self.log('=>', target);
  443. 		return  (preserve || target);
  444. 	};
  445.  
  446. 	self.export = function( scope, members, overwriten ) {
  447. 		if ( ! scope ) {
  448. 			return  false;
  449. 		}
  450. 		if ( '*' === (members +'').trim() ) {
  451. 			members = null;
  452. 		}
  453. 		return  self.copyMembers(self, scope, members, overwriten);
  454. 	};
  455.  
  456. 	// Avoid needing a 'new' operator; this is just a wrapper
  457. 	return  self;
  458. }

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