Subversion Repositories Applications.papyrus

/*
        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 div = document.createElement("div");
                div.style.backgroundImage = "url(\"" + this.imgPath + "/tab_close.gif\")";
                dojo.body().appendChild(div);
                var bkImg = null;
                if (window.getComputedStyle) {
                        var cStyle = getComputedStyle(div, "");
                        bkImg = cStyle.getPropertyValue("background-image");
                } else {
                        bkImg = div.currentStyle.backgroundImage;
                }
                var bUseImgElem = false;
                if (bkImg != null && (bkImg == "none" || bkImg == "url(invalid-url:)")) {
                        this.accessible = true;
                }
                dojo.body().removeChild(div);
        }
        return this.accessible;
}, setCheckAccessible:function (bTest) {
        this.doAccessibleCheck = bTest;
}, setAccessibleMode:function () {
        if (this.accessible === null) {
                if (this.checkAccessible()) {
                        dojo.render.html.prefixes.unshift("a11y");
                }
        }
        return this.accessible;
}};