107 lines
2.4 KiB
Plaintext
107 lines
2.4 KiB
Plaintext
/**
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* 动态加载文件到doc中，并依据obj来设置属性，加载成功后执行回调函数fn
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* @name loadFile
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* @example
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* //指定加载到当前document中一个script文件，加载成功后执行function
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* utils.loadFile( document, {
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* src:"test.js",
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* tag:"script",
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* type:"text/javascript",
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* defer:"defer"
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* }, function () {
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* console.log('加载成功！')
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* });
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*/
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var loadFile = function() {
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var tmpList = [];
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function getItem(doc, obj) {
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try {
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for (var i = 0, ci; ci = tmpList[i++];) {
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if (ci.doc === doc && ci.url == (obj.src || obj.href)) {
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return ci;
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}
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}
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} catch (e) {
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return null;
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}
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}
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return function (doc, obj, fn) {
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var item = getItem(doc, obj);
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if (item) {
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if (item.ready) {
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fn && fn();
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} else {
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item.funs.push(fn)
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}
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return;
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}
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tmpList.push({
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doc:doc,
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url:obj.src || obj.href,
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funs:[fn]
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});
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if (!doc.body) {
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var html = [];
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for (var p in obj) {
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if (p == 'tag')continue;
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html.push(p + '="' + obj[p] + '"')
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}
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doc.write('<' + obj.tag + ' ' + html.join(' ') + ' ></' + obj.tag + '>');
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return;
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}
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if (obj.id && doc.getElementById(obj.id)) {
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return;
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}
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var element = doc.createElement(obj.tag);
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delete obj.tag;
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for (var p in obj) {
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element.setAttribute(p, obj[p]);
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}
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element.onload = element.onreadystatechange = function () {
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if (!this.readyState || /loaded|complete/.test(this.readyState)) {
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item = getItem(doc, obj);
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if (item.funs.length > 0) {
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item.ready = 1;
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for (var fi; fi = item.funs.pop();) {
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fi();
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}
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}
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element.onload = element.onreadystatechange = null;
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}
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};
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element.onerror = function () {
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throw Error('The load ' + (obj.href || obj.src) + ' fails,check the url settings of file ueditor.config.js ')
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};
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doc.getElementsByTagName("head")[0].appendChild(element);
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};
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}();
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var loadMultiFile = function(fileArray, callback) {
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if(Object.prototype.toString.call(fileArray) === '[object Array]') {
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var iLen = fileArray.length;
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if(!iLen) {
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return;
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}
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var iCount = 0;
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for(var i = 0; i < fileArray.length; i++) {
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loadFile(document, fileArray[i], function() {
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iCount ++;
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if(iLen == iCount) {
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try{
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callback && callback();
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} catch(e){}
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}
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});
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}
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} else if(Object.prototype.toString.call(fileArray) === '[object Object]'){
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loadFile(document, fileArray, function() {
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try{
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callback && callback();
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} catch(e){}
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});
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}
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}; |