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/*
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Copyright (c) 2004-2006, The Dojo Foundation
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All Rights Reserved.
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Licensed under the Academic Free License version 2.1 or above OR the
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modified BSD license. For more information on Dojo licensing, see:
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http://dojotoolkit.org/community/licensing.shtml
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*/
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dojo.provide("dojo.a11y");
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dojo.require("dojo.uri.*");
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dojo.require("dojo.html.common");
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dojo.a11y={imgPath:dojo.uri.moduleUri("dojo.widget","templates/images"),doAccessibleCheck:true,accessible:null,checkAccessible:function(){
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if(this.accessible===null){
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this.accessible=false;
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if(this.doAccessibleCheck==true){
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this.accessible=this.testAccessible();
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}
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}
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return this.accessible;
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},testAccessible:function(){
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this.accessible=false;
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if(dojo.render.html.ie||dojo.render.html.mozilla){
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var _1=document.createElement("div");
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_1.style.backgroundImage="url(\""+this.imgPath+"/tab_close.gif\")";
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dojo.body().appendChild(_1);
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var _2=null;
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if(window.getComputedStyle){
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var _3=getComputedStyle(_1,"");
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_2=_3.getPropertyValue("background-image");
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}else{
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_2=_1.currentStyle.backgroundImage;
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}
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var _4=false;
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if(_2!=null&&(_2=="none"||_2=="url(invalid-url:)")){
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this.accessible=true;
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}
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dojo.body().removeChild(_1);
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}
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return this.accessible;
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},setCheckAccessible:function(_5){
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this.doAccessibleCheck=_5;
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},setAccessibleMode:function(){
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if(this.accessible===null){
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if(this.checkAccessible()){
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dojo.render.html.prefixes.unshift("a11y");
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}
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}
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return this.accessible;
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}};
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