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alexandre_ |
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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 div = document.createElement("div");
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div.style.backgroundImage = "url(\"" + this.imgPath + "/tab_close.gif\")";
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dojo.body().appendChild(div);
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var bkImg = null;
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if (window.getComputedStyle) {
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var cStyle = getComputedStyle(div, "");
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bkImg = cStyle.getPropertyValue("background-image");
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} else {
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bkImg = div.currentStyle.backgroundImage;
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}
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var bUseImgElem = false;
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if (bkImg != null && (bkImg == "none" || bkImg == "url(invalid-url:)")) {
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this.accessible = true;
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}
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dojo.body().removeChild(div);
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}
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return this.accessible;
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}, setCheckAccessible:function (bTest) {
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this.doAccessibleCheck = bTest;
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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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