/**
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@name Edo.core.Module
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@class
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@typeName module
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@description 模块加载器.能加载指定路径的文件,如user.xml, user.html, user.jsp等.
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@extend Edo.core.UIComponent
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@example
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*/
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Edo.core.Module = function(){
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/**
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@name Edo.core.Module#load
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@event
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@description
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*/
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/**
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@name Edo.core.Module#unload
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@event
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@description
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*/
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/**
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@name Edo.core.Module#beforeunload
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@event
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@description
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*/
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Edo.core.Module.superclass.constructor.call(this);
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};
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Edo.core.Module.extend(Edo.core.UIComponent,{
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elCls: 'e-module e-div',
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/**
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@name Edo.core.Module#autoMask
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@property
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@default true
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@description 自动遮罩
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*/
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autoMask: true,
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/**
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@name Edo.core.Module#src
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@property
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@default ''
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@description 模块链接的页面地址
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*/
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src: '',
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_setSrc: function(value){
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if(this.src != value){
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this.src = value;
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this.load(value);
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this.changeProperty('src', value);
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}
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},
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_setHtml: function(){},
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createChildren: function(){
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Edo.core.Module.superclass.createChildren.apply(this, arguments);
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if(this.src){
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this.load(this.src);
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}
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},
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syncSize: function(){
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Edo.core.Module.superclass.syncSize.call(this);
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if(this.iframe){
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var size = Edo.util.Dom.getSize(this.el, true);
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this.iframe.style.width = size.width+'px';
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this.iframe.style.height = size.height+'px';
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}
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},
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// doCreateChildWindow: function(){
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// var cEdo = this.childWindow.Edo;
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// if(cEdo){
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// cEdo.create({
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// type: 'button',
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// redner: '#body'
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// });
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// this.configGet = null;
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//
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// this.fireEvent('load',{
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// type: 'load',
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// source: sf
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// });
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// }else{
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// this.doCreateChildWindow.defer(100, this);
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// }
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// },
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doLoad: function (){
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if(this.configGet === false) {
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doLoad.defer(50, this);
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return;
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}
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this.childWindow = this.iframe.contentWindow;
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// if(this.isConfig){ //暂时不支持此功能:以后应该是edo字符串库,直接操作滴
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// //引用js和css资源,并...从ajax得到配置xml或json
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// var html = '<html><body><style type="text/css">html,body{width:100%;height:100%;overflow:hidden;}</style></body></html>'+Edo_core_Module_res+'<script type="text/javascript"></script>';
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// var doc = this.childWindow.document;
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// doc.open();
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// doc.write(html);
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// doc.close();
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//
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// this.doCreateChildWindow.defer(100, this);
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// return;
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// }
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if(this.autoMask !== false) this.unmask();
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this.fireEvent('load',{
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type: 'load',
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source: this,
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src: this.src,
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window: this.childWindow
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});
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},
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/**
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@name Edo.core.Module#load
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@function
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@description 加载一个指定url的文件
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@param {String} src 可以是edo的xml定义文件,也可以是任何一个静态或动态的网页
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@param {Boolean} isConfig 说明src引用的是否是配置(xml,json)
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*/
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load: function(src, isConfig){
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this.src = src;
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if(!this.el) return false;
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if(this.unload() === false) return;
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if(this.autoMask !== false) this.mask();
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this.src = src;
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this.isConfig = isConfig;
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//
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//debugger
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var im = this.iframe = document.createElement('iframe');
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im.frameBorder = 0;
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//im.scrolling = 'no';
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im.style.width = (this.realWidth||0)+'px';
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im.style.height = (this.realHeight||0)+'px';
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this.el.appendChild(im);
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if(isConfig){
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this.configGet = false;
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var sf = this;
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Edo.util.Ajax.request({
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url: src,
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type: 'get',
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onSuccess: function(text){
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sf.configGet = text;
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},
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onFail: function(){
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throw new Error("没有获得module的配置对象资源");
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}
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});
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//1)ajax src
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//2)iframe创建
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//两者都是异步的,所以,需要一个同步
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}else{
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im.src = src;
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}
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function checkIFrame(){
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var win = this.iframe.contentWindow;
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try{
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if(win && win.document && win.document.readyState=="complete"){
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this.doLoad();
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}else{
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checkIFrame.defer(20, this);
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}
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}catch(e){
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this.doLoad(false);
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}
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}
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if(isGecko && !isChrome){
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var sf = this;
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im.onload = this.doLoad.bind(this);
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}else{
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checkIFrame.defer(20, this);
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}
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//优化
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//1)xml的获取由module进行
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//2)同时生成iframe,不需要等iframe加载完毕才进行xml的获取
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},
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/**
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@name Edo.core.Module#unload
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@function
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@description 卸载一个当前加载的页面
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*/
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unload: function(){
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if(this.src && this.iframe){
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//卸载不通过,则不进行更换src操作
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if(this.fireEvent('beforeunload', {type:'beforeunload',source: this}) === false) return false;
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this.iframe.src = 'javascript:false;';//'abort:blank';//
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Edo.util.Dom.remove(this.iframe);
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this.childWindow = this.src = this.iframe = this.isConfig = null;
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this.fireEvent('unload', {
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type: 'unload',
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source: this
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});
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}
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}
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});
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Edo.core.Module.regType('module');
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