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iuap-design

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if (!String.prototype.trim) { String.prototype.trim = function () { return this.replace(/^\s*(\b.*\b|)\s*$/, "$1"); }; } if (!Array.prototype.indexOf) { Array.prototype.indexOf = function (obj) { for (var i = 0; i < this.length; i++) { if (this[i] == obj) return i; } return -1; }; } if (!Array.prototype.remove) { Array.prototype.remove = function(index) { if (index < 0 || index > this.length) { alert("index out of bound"); return; } this.splice(index, 1); }; } // 遍历数组,执行函数 if (!Array.prototype.forEach) { Array.prototype.forEach = function (fn) { for (var i = 0, len = this.length; i < len; i++) { fn(this[i], i, this); } }; } if(!NodeList.prototype.forEach) NodeList.prototype.forEach = Array.prototype.forEach; function isDomElement(obj) { if (window['HTMLElement']) { return obj instanceof HTMLElement; } else { return obj && obj.tagName && obj.nodeType === 1; } } /*IE8的querySelectorAll返回的对象不是Array也不是NodeList,不能调用forEach,因此重写此方法*/ /* 此处没有IE8标识,因此使用HTMLElement来进行判断*/ if(!window['HTMLElement']){ var _querySelectorAll = Element.prototype.querySelectorAll; Element.prototype.querySelectorAll = function(selector) { var result = _querySelectorAll.call(this,selector); if(!isDomElement(this)){ return result; } var resArr = []; for(var i = 0;i < result.length;i++){ resArr.push(result[i]); } return resArr; } var _docquerySelectorAll = document.querySelectorAll; document.querySelectorAll = function(selector) { try{ var result = _docquerySelectorAll.call(this,selector); var resArr = []; if(result.length > 0){ for(var i = 0;i < result.length;i++){ resArr.push(result[i]); } return resArr; }else{ return result; } }catch(e){ } } } if(!Element.prototype.addEventListener){ Element.prototype.addEventListener = function(event,fun){ var tag = this; this.attachEvent("on"+event,function(){ fun.apply(tag,arguments);//这里是关键 }); } } // 绑定环境 if(typeof Function.prototype.bind !== 'function'){ Function.prototype.bind = function(context){ var fn = this; var args = []; for(var i = 1, len = arguments.length; i < len; i ++){ args.push(arguments[i]); } return function(){ // for(var j = 1, len = arguments.length; j < len; j ++){ // args.push(arguments[j]); // } return fn.apply(context, args.concat(Array.prototype.slice.call(arguments))); }; }; } // 获取当前js文件的路径 window.getCurrentJsPath = function() { var doc = document, a = {}, expose = +new Date(), rExtractUri = /((?:http|https|file):\/\/.*?\/[^:]+)(?::\d+)?:\d+/, isLtIE8 = ('' + doc.querySelector).indexOf('[native code]') === -1; // FF,Chrome if (doc.currentScript){ return doc.currentScript.src; } var stack; try{ a.b(); } catch(e){ stack = e.fileName || e.sourceURL || e.stack || e.stacktrace; } // IE10 if (stack){ var absPath = rExtractUri.exec(stack)[1]; if (absPath){ return absPath; } } // IE5-9 for(var scripts = doc.scripts, i = scripts.length - 1, script; script = scripts[i--];){ if (script.className !== expose && script.readyState === 'interactive'){ script.className = expose; // if less than ie 8, must get abs path by getAttribute(src, 4) return isLtIE8 ? script.getAttribute('src', 4) : script.src; } } }; window.encodeBase64 = function(str){ var c1, c2, c3; var base64EncodeChars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/"; var i = 0, len= str.length, string = ''; while (i < len){ c1 = str[i++] & 0xff; if (i == len){ string += base64EncodeChars.charAt(c1 >> 2); string += base64EncodeChars.charAt((c1 & 0x3) << 4); string += "=="; break; } c2 = str[i++]; if (i == len){ string += base64EncodeChars.charAt(c1 >> 2); string += base64EncodeChars.charAt(((c1 & 0x3) << 4) | ((c2 & 0xF0) >> 4)); string += base64EncodeChars.charAt((c2 & 0xF) << 2); string += "="; break; } c3 = str[i++]; string += base64EncodeChars.charAt(c1 >> 2); string += base64EncodeChars.charAt(((c1 & 0x3) << 4) | ((c2 & 0xF0) >> 4)); string += base64EncodeChars.charAt(((c2 & 0xF) << 2) | ((c3 & 0xC0) >> 6)); string += base64EncodeChars.charAt(c3 & 0x3F) } return string }; /** * Created by dingrf on 2015-11-18. */ window.u = window.u || {}; var u = window.u; u.polyfill = true; u._addClass = function(element,value){ var classes, cur, clazz, i, finalValue,rclass = /[\t\r\n\f]/g, proceed = typeof value === "string" && value,rnotwhite = (/\S+/g); if ( proceed ) { // The disjunction here is for better compressibility (see removeClass) classes = ( value || "" ).match( rnotwhite ) || []; cur = element.nodeType === 1 && ( element.className ? ( " " + element.className + " " ).replace( rclass, " " ) : " "); if ( cur ) { i = 0; while ( (clazz = classes[i++]) ) { if ( cur.indexOf( " " + clazz + " " ) < 0 ) {cur += clazz + " ";} } // only assign if different to avoid unneeded rendering. finalValue = (cur + "").trim(); if ( element.className !== finalValue ) { element.className = finalValue; } } } return this; }; u._removeClass = function(element, value) { var classes, cur, clazz, j, finalValue,rnotwhite = (/\S+/g),rclass = /[\t\r\n\f]/g, proceed = arguments.length === 0 || typeof value === "string" && value; if ( proceed ) { classes = ( value || "" ).match( rnotwhite ) || []; // This expression is here for better compressibility (see addClass) cur = element.nodeType === 1 && ( element.className ? ( " " + element.className + " " ).replace( rclass, " " ) :""); if ( cur ) { j = 0; while ( (clazz = classes[j++]) ) { // Remove *all* instances while ( cur.indexOf( " " + clazz + " " ) >= 0 ) { cur = cur.replace( " " + clazz + " ", " " ); } } // only assign if different to avoid unneeded rendering. finalValue = value ? (cur + "").trim() : ""; if ( element.className !== finalValue ) { element.className = finalValue; } } } return this; }; u._hasClass = function(element,value){ var rclass = /[\t\r\n\f]/g; if ( element.nodeType === 1 && (" " + element.className + " ").replace(rclass, " ").indexOf( value ) >= 0 ) { return true; } return false; }; u._toggleClass = function(element, value){ if ( u._hasClass(element, value) ) { u._removeClass(element, value); } else { u._addClass(element, value); } } /* Respond.js: min/max-width media query polyfill. (c) Scott Jehl. MIT Lic. j.mp/respondjs */ (function( w ){ "use strict"; //exposed namespace var respond = {}; w.respond = respond; //define update even in native-mq-supporting browsers, to avoid errors respond.update = function(){}; //define ajax obj var requestQueue = [], xmlHttp = (function() { var xmlhttpmethod = false; try { xmlhttpmethod = new w.XMLHttpRequest(); } catch( e ){ xmlhttpmethod = new w.ActiveXObject( "Microsoft.XMLHTTP" ); } return function(){ return xmlhttpmethod; }; })(), //tweaked Ajax functions from Quirksmode ajax = function( url, callback ) { var req = xmlHttp(); if (!req){ return; } req.open( "GET", url, true ); req.onreadystatechange = function () { if ( req.readyState !== 4 || req.status !== 200 && req.status !== 304 ){ return; } callback( req.responseText ); }; if ( req.readyState === 4 ){ return; } req.send( null ); }, isUnsupportedMediaQuery = function( query ) { return query.replace( respond.regex.minmaxwh, '' ).match( respond.regex.other ); }; //expose for testing respond.ajax = ajax; respond.queue = requestQueue; respond.unsupportedmq = isUnsupportedMediaQuery; respond.regex = { media: /@media[^\{]+\{([^\{\}]*\{[^\}\{]*\})+/gi, keyframes: /@(?:\-(?:o|moz|webkit)\-)?keyframes[^\{]+\{(?:[^\{\}]*\{[^\}\{]*\})+[^\}]*\}/gi, comments: /\/\*[^*]*\*+([^/][^*]*\*+)*\//gi, urls: /(url\()['"]?([^\/\)'"][^:\)'"]+)['"]?(\))/g, findStyles: /@media *([^\{]+)\{([\S\s]+?)$/, only: /(only\s+)?([a-zA-Z]+)\s?/, minw: /\(\s*min\-width\s*:\s*(\s*[0-9\.]+)(px|em)\s*\)/, maxw: /\(\s*max\-width\s*:\s*(\s*[0-9\.]+)(px|em)\s*\)/, minmaxwh: /\(\s*m(in|ax)\-(height|width)\s*:\s*(\s*[0-9\.]+)(px|em)\s*\)/gi, other: /\([^\)]*\)/g }; //expose media query support flag for external use respond.mediaQueriesSupported = w.matchMedia && w.matchMedia( "only all" ) !== null && w.matchMedia( "only all" ).matches; //if media queries are supported, exit here if( respond.mediaQueriesSupported ){ return; } //define vars var doc = w.document, docElem = doc.documentElement, mediastyles = [], rules = [], appendedEls = [], parsedSheets = {}, resizeThrottle = 30, head = doc.getElementsByTagName( "head" )[0] || docElem, base = doc.getElementsByTagName( "base" )[0], links = head.getElementsByTagName( "link" ), lastCall, resizeDefer, //cached container for 1em value, populated the first time it's needed eminpx, // returns the value of 1em in pixels getEmValue = function() { var ret, div = doc.createElement('div'), body = doc.body, originalHTMLFontSize = docElem.style.fontSize, originalBodyFontSize = body && body.style.fontSize, fakeUsed = false; div.style.cssText = "position:absolute;font-size:1em;width:1em"; if( !body ){ body = fakeUsed = doc.createElement( "body" ); body.style.background = "none"; } // 1em in a media query is the value of the default font size of the browser // reset docElem and body to ensure the correct value is returned docElem.style.fontSize = "100%"; body.style.fontSize = "100%"; body.appendChild( div ); if( fakeUsed ){ docElem.insertBefore( body, docElem.firstChild ); } ret = div.offsetWidth; if( fakeUsed ){ docElem.removeChild( body ); } else { body.removeChild( div ); } // restore the original values docElem.style.fontSize = originalHTMLFontSize; if( originalBodyFontSize ) { body.style.fontSize = originalBodyFontSize; } //also update eminpx before returning ret = eminpx = parseFloat(ret); return ret; }, //enable/disable styles applyMedia = function( fromResize ){ var name = "clientWidth", docElemProp = docElem[ name ], currWidth = doc.compatMode === "CSS1Compat" && docElemProp || doc.body[ name ] || docElemProp, styleBlocks = {}, lastLink = links[ links.length-1 ], now = (new Date()).getTime(); //throttle resize calls if( fromResize && lastCall && now - lastCall < resizeThrottle ){ w.clearTimeout( resizeDefer ); resizeDefer = w.setTimeout( applyMedia, resizeThrottle ); return; } else { lastCall = now; } for( var i in mediastyles ){ if( mediastyles.hasOwnProperty( i ) ){ var thisstyle = mediastyles[ i ], min = thisstyle.minw, max = thisstyle.maxw, minnull = min === null, maxnull = max === null, em = "em"; if( !!min ){ min = parseFloat( min ) * ( min.indexOf( em ) > -1 ? ( eminpx || getEmValue() ) : 1 ); } if( !!max ){ max = parseFloat( max ) * ( max.indexOf( em ) > -1 ? ( eminpx || getEmValue() ) : 1 ); } // if there's no media query at all (the () part), or min or max is not null, and if either is present, they're true if( !thisstyle.hasquery || ( !minnull || !maxnull ) && ( minnull || currWidth >= min ) && ( maxnull || currWidth <= max ) ){ if( !styleBlocks[ thisstyle.media ] ){ styleBlocks[ thisstyle.media ] = []; } styleBlocks[ thisstyle.media ].push( rules[ thisstyle.rules ] ); } } } //remove any existing respond style element(s) for( var j in appendedEls ){ if( appendedEls.hasOwnProperty( j ) ){ if( appendedEls[ j ] && appendedEls[ j ].parentNode === head ){ head.removeChild( appendedEls[ j ] ); } } } appendedEls.length = 0; //inject active styles, grouped by media type for( var k in styleBlocks ){ if( styleBlocks.hasOwnProperty( k ) ){ var ss = doc.createElement( "style" ), css = styleBlocks[ k ].join( "\n" ); ss.type = "text/css"; ss.media = k; //originally, ss was appended to a documentFragment and sheets were appended in bulk. //this caused crashes in IE in a number of circumstances, such as when the HTML element had a bg image set, so appending beforehand seems best. Thanks to @dvelyk for the initial research on this one! head.insertBefore( ss, lastLink.nextSibling ); if ( ss.styleSheet ){ ss.styleSheet.cssText = css; } else { ss.appendChild( doc.createTextNode( css ) ); } //push to appendedEls to track for later removal appendedEls.push( ss ); } } }, //find media blocks in css text, convert to style blocks translate = function( styles, href, media ){ var qs = styles.replace( respond.regex.comments, '' ) .replace( respond.regex.keyframes, '' ) .match( respond.regex.media ), ql = qs && qs.length || 0; //try to get CSS path href = href.substring( 0, href.lastIndexOf( "/" ) ); var repUrls = function( css ){ return css.replace( respond.regex.urls, "$1" + href + "$2$3" ); }, useMedia = !ql && media; //if path exists, tack on trailing slash if( href.length ){ href += "/"; } //if no internal queries exist, but media attr does, use that //note: this currently lacks support for situations where a media attr is specified on a link AND //its associated stylesheet has internal CSS media queries. //In those cases, the media attribute will currently be ignored. if( useMedia ){ ql = 1; } for( var i = 0; i < ql; i++ ){ var fullq, thisq, eachq, eql; //media attr if( useMedia ){ fullq = media; rules.push( repUrls( styles ) ); } //parse for styles else{ fullq = qs[ i ].match( respond.regex.findStyles ) && RegExp.$1; rules.push( RegExp.$2 && repUrls( RegExp.$2 ) ); } eachq = fullq.split( "," ); eql = eachq.length; for( var j = 0; j < eql; j++ ){ thisq = eachq[ j ]; if( isUnsupportedMediaQuery( thisq ) ) { continue; } mediastyles.push( { media : thisq.split( "(" )[ 0 ].match( respond.regex.only ) && RegExp.$2 || "all", rules : rules.length - 1, hasquery : thisq.indexOf("(") > -1, minw : thisq.match( respond.regex.minw ) && parseFloat( RegExp.$1 ) + ( RegExp.$2 || "" ), maxw : thisq.match( respond.regex.maxw ) && parseFloat( RegExp.$1 ) + ( RegExp.$2 || "" ) } ); } } applyMedia(); }, //recurse through request queue, get css text makeRequests = function(){ if( requestQueue.length ){ var thisRequest = requestQueue.shift(); ajax( thisRequest.href, function( styles ){ translate( styles, thisRequest.href, thisRequest.media ); parsedSheets[ thisRequest.href ] = true; // by wrapping recursive function call in setTimeout // we prevent "Stack overflow" error in IE7 w.setTimeout(function(){ makeRequests(); },0); } ); } }, //loop stylesheets, send text content to translate ripCSS = function(){ for( var i = 0; i < links.length; i++ ){ var sheet = links[ i ], href = sheet.href, media = sheet.media, isCSS = sheet.rel && sheet.rel.toLowerCase() === "stylesheet"; //only links plz and prevent re-parsing if( !!href && isCSS && !parsedSheets[ href ] ){ // selectivizr exposes css through the rawCssText expando if (sheet.styleSheet && sheet.styleSheet.rawCssText) { translate( sheet.styleSheet.rawCssText, href, media ); parsedSheets[ href ] = true; } else { if( (!/^([a-zA-Z:]*\/\/)/.test( href ) && !base) || href.replace( RegExp.$1, "" ).split( "/" )[0] === w.location.host ){ // IE7 doesn't handle urls that start with '//' for ajax request // manually add in the protocol if ( href.substring(0,2) === "//" ) { href = w.location.protocol + href; } requestQueue.push( { href: href, media: media } ); } } } } makeRequests(); }; //translate CSS ripCSS(); //expose update for re-running respond later on respond.update = ripCSS; //expose getEmValue respond.getEmValue = getEmValue; //adjust on resize function callMedia(){ applyMedia( true ); } if( w.addEventListener ){ w.addEventListener( "resize", callMedia, false ); } else if( w.attachEvent ){ w.attachEvent( "onresize", callMedia ); } })(this);