--- /dev/null
+if(!dojo._hasResource["dijit._base.wai"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dijit._base.wai"] = true;
+dojo.provide("dijit._base.wai");
+
+dijit.wai = {
+ onload: function(){
+ // summary:
+ // Detects if we are in high-contrast mode or not
+
+ // This must be a named function and not an anonymous
+ // function, so that the widget parsing code can make sure it
+ // registers its onload function after this function.
+ // DO NOT USE "this" within this function.
+
+ // create div for testing if high contrast mode is on or images are turned off
+ var div = dojo.doc.createElement("div");
+ div.id = "a11yTestNode";
+ div.style.cssText = 'border: 1px solid;'
+ + 'border-color:red green;'
+ + 'position: absolute;'
+ + 'height: 5px;'
+ + 'top: -999px;'
+ + 'background-image: url("' + dojo.moduleUrl("dojo", "resources/blank.gif") + '");';
+ dojo.body().appendChild(div);
+
+ // test it
+ var cs = dojo.getComputedStyle(div);
+ if(cs){
+ var bkImg = cs.backgroundImage;
+ var needsA11y = (cs.borderTopColor==cs.borderRightColor) || (bkImg != null && (bkImg == "none" || bkImg == "url(invalid-url:)" ));
+ dojo[needsA11y ? "addClass" : "removeClass"](dojo.body(), "dijit_a11y");
+ dojo.body().removeChild(div);
+ }
+ }
+};
+
+// Test if computer is in high contrast mode.
+// Make sure the a11y test runs first, before widgets are instantiated.
+if(dojo.isIE || dojo.isMoz){ // NOTE: checking in Safari messes things up
+ dojo._loaders.unshift(dijit.wai.onload);
+}
+
+dojo.mixin(dijit,
+{
+ hasWaiRole: function(/*Element*/ elem){
+ // summary: Determines if an element has a role.
+ // returns: true if elem has a role attribute and false if not.
+ return elem.hasAttribute ? elem.hasAttribute("role") : !!elem.getAttribute("role");
+ },
+
+ getWaiRole: function(/*Element*/ elem){
+ // summary: Gets the role for an element.
+ // returns:
+ // The role of elem or an empty string if elem
+ // does not have a role.
+ var value = elem.getAttribute("role");
+ if(value){
+ var prefixEnd = value.indexOf(":");
+ return prefixEnd == -1 ? value : value.substring(prefixEnd+1);
+ }else{
+ return "";
+ }
+ },
+
+ setWaiRole: function(/*Element*/ elem, /*String*/ role){
+ // summary: Sets the role on an element.
+ // description:
+ // On Firefox 2 and below, "wairole:" is
+ // prepended to the provided role value.
+ elem.setAttribute("role", (dojo.isFF && dojo.isFF < 3) ? "wairole:" + role : role);
+ },
+
+ removeWaiRole: function(/*Element*/ elem){
+ // summary: Removes the role from an element.
+ elem.removeAttribute("role");
+ },
+
+ hasWaiState: function(/*Element*/ elem, /*String*/ state){
+ // summary: Determines if an element has a given state.
+ // description:
+ // On Firefox 2 and below, we check for an attribute in namespace
+ // "http://www.w3.org/2005/07/aaa" with a name of the given state.
+ // On all other browsers, we check for an attribute
+ // called "aria-"+state.
+ // returns:
+ // true if elem has a value for the given state and
+ // false if it does not.
+ if(dojo.isFF && dojo.isFF < 3){
+ return elem.hasAttributeNS("http://www.w3.org/2005/07/aaa", state);
+ }else{
+ return elem.hasAttribute ? elem.hasAttribute("aria-"+state) : !!elem.getAttribute("aria-"+state);
+ }
+ },
+
+ getWaiState: function(/*Element*/ elem, /*String*/ state){
+ // summary: Gets the value of a state on an element.
+ // description:
+ // On Firefox 2 and below, we check for an attribute in namespace
+ // "http://www.w3.org/2005/07/aaa" with a name of the given state.
+ // On all other browsers, we check for an attribute called
+ // "aria-"+state.
+ // returns:
+ // The value of the requested state on elem
+ // or an empty string if elem has no value for state.
+ if(dojo.isFF && dojo.isFF < 3){
+ return elem.getAttributeNS("http://www.w3.org/2005/07/aaa", state);
+ }else{
+ var value = elem.getAttribute("aria-"+state);
+ return value ? value : "";
+ }
+ },
+
+ setWaiState: function(/*Element*/ elem, /*String*/ state, /*String*/ value){
+ // summary: Sets a state on an element.
+ // description:
+ // On Firefox 2 and below, we set an attribute in namespace
+ // "http://www.w3.org/2005/07/aaa" with a name of the given state.
+ // On all other browsers, we set an attribute called
+ // "aria-"+state.
+ if(dojo.isFF && dojo.isFF < 3){
+ elem.setAttributeNS("http://www.w3.org/2005/07/aaa",
+ "aaa:"+state, value);
+ }else{
+ elem.setAttribute("aria-"+state, value);
+ }
+ },
+
+ removeWaiState: function(/*Element*/ elem, /*String*/ state){
+ // summary: Removes a state from an element.
+ // description:
+ // On Firefox 2 and below, we remove the attribute in namespace
+ // "http://www.w3.org/2005/07/aaa" with a name of the given state.
+ // On all other browsers, we remove the attribute called
+ // "aria-"+state.
+ if(dojo.isFF && dojo.isFF < 3){
+ elem.removeAttributeNS("http://www.w3.org/2005/07/aaa", state);
+ }else{
+ elem.removeAttribute("aria-"+state);
+ }
+ }
+});
+
+}
projects / eow / blobdiff