You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
53 lines
1.4 KiB
53 lines
1.4 KiB
2 years ago
|
/*
|
||
|
|
Copyright (c) 2004-2006, The Dojo Foundation
|
||
|
|
All Rights Reserved.
|
||
|
|
|
||
|
|
Licensed under the Academic Free License version 2.1 or above OR the
|
||
|
|
modified BSD license. For more information on Dojo licensing, see:
|
||
|
|
|
||
|
|
http://dojotoolkit.org/community/licensing.shtml
|
||
|
|
*/
|
||
|
|
|
||
|
|
|
||
|
|
dojo.provide("dojo.a11y");
|
||
|
|
dojo.require("dojo.uri.*");
|
||
|
|
dojo.require("dojo.html.common");
|
||
|
|
dojo.a11y={imgPath:dojo.uri.moduleUri("dojo.widget","templates/images"),doAccessibleCheck:true,accessible:null,checkAccessible:function(){
|
||
|
|
if(this.accessible===null){
|
||
|
|
this.accessible=false;
|
||
|
|
if(this.doAccessibleCheck==true){
|
||
|
|
this.accessible=this.testAccessible();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return this.accessible;
|
||
|
|
},testAccessible:function(){
|
||
|
|
this.accessible=false;
|
||
|
|
if(dojo.render.html.ie||dojo.render.html.mozilla){
|
||
|
|
var _1=document.createElement("div");
|
||
|
|
_1.style.backgroundImage="url(\""+this.imgPath+"/tab_close.gif\")";
|
||
|
|
dojo.body().appendChild(_1);
|
||
|
|
var _2=null;
|
||
|
|
if(window.getComputedStyle){
|
||
|
|
var _3=getComputedStyle(_1,"");
|
||
|
|
_2=_3.getPropertyValue("background-image");
|
||
|
|
}else{
|
||
|
|
_2=_1.currentStyle.backgroundImage;
|
||
|
|
}
|
||
|
|
var _4=false;
|
||
|
|
if(_2!=null&&(_2=="none"||_2=="url(invalid-url:)")){
|
||
|
|
this.accessible=true;
|
||
|
|
}
|
||
|
|
dojo.body().removeChild(_1);
|
||
|
|
}
|
||
|
|
return this.accessible;
|
||
|
|
},setCheckAccessible:function(_5){
|
||
|
|
this.doAccessibleCheck=_5;
|
||
|
|
},setAccessibleMode:function(){
|
||
|
|
if(this.accessible===null){
|
||
|
|
if(this.checkAccessible()){
|
||
|
|
dojo.render.html.prefixes.unshift("a11y");
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return this.accessible;
|
||
|
|
}};
|