Bug 149858 [XBLFC] Active Accessibility: support XBL-based HTML radio

r=aaronl, sr=jst
Add nsIAccessibleProvider in radio.xml, create accessible object for XBL radio button

accessible/public/nsIAccessibilityService.idl

@@ -50,6 +50,7 @@ interface nsIAccessibilityService : nsISupports
   nsIAccessible createHTMLNativeWindowAccessible(in nsIDOMNode aDOMNode, in nsIWeakReference aShell, in PRInt32 aHWnd);
   nsIAccessible createHTMLPluginAccessible(in nsIDOMNode aDOMNode, in nsIWeakReference aShell);
   nsIAccessible createHTMLRadioButtonAccessible(in nsISupports aFrame);
+  nsIAccessible createHTMLRadioButtonAccessibleXBL(in nsIDOMNode aNode);
   nsIAccessible createHTMLSelectOptionAccessible(in nsIDOMNode aNode, in nsIAccessible aAccParent, in nsISupports aPresShell);
   nsIAccessible createHTMLTableAccessible(in nsISupports aFrame);
   nsIAccessible createHTMLTableCellAccessible(in nsISupports aFrame);

accessible/src/base/nsAccessibilityService.cpp

@@ -605,6 +605,25 @@ nsAccessibilityService::CreateHTMLRadioButtonAccessible(nsISupports *aFrame, nsI
   return NS_OK;
 }
 
+NS_IMETHODIMP
+nsAccessibilityService::CreateHTMLRadioButtonAccessibleXBL(nsIDOMNode *aNode, nsIAccessible **_retval)
+{
+#ifdef MOZ_XUL
+  nsCOMPtr<nsIWeakReference> weakShell;
+  GetShellFromNode(aNode, getter_AddRefs(weakShell));
+
+  // reusing the HTML accessible widget and enhancing for XUL
+  *_retval = new nsHTMLRadioButtonAccessible(aNode, weakShell);
+  if (! *_retval) 
+    return NS_ERROR_OUT_OF_MEMORY;
+
+  NS_ADDREF(*_retval);
+#else
+  *_retval = nsnull;
+#endif // MOZ_XUL
+  return NS_OK;
+}
+
 NS_IMETHODIMP 
 nsAccessibilityService::CreateHTMLSelectOptionAccessible(nsIDOMNode* aDOMNode, nsIAccessible *aAccParent, nsISupports* aPresContext, nsIAccessible **_retval)
 {

layout/forms/resources/content/radio.xml

@@ -46,6 +46,18 @@
         <xul:image class="input-radio-check"/>
       </xul:hbox>
     </content>
+    <implementation implements="nsIAccessibleProvider">
+      <property name="accessible">
+        <getter>
+          <![CDATA[
+            netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");  // Temporary, until bug 104907 is fixed
+            var accService = Components.classes["@mozilla.org/accessibilityService;1"].getService(Components.interfaces.nsIAccessibilityService);
+            return accService.createHTMLRadioButtonAccessibleXBL(this);
+          ]]>
+        </getter>
+      </property>
+
+    </implementation>
   </binding>
 
 </bindings>

layout/html/forms/resources/content/radio.xml

@@ -46,6 +46,18 @@
         <xul:image class="input-radio-check"/>
       </xul:hbox>
     </content>
+    <implementation implements="nsIAccessibleProvider">
+      <property name="accessible">
+        <getter>
+          <![CDATA[
+            netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");  // Temporary, until bug 104907 is fixed
+            var accService = Components.classes["@mozilla.org/accessibilityService;1"].getService(Components.interfaces.nsIAccessibilityService);
+            return accService.createHTMLRadioButtonAccessibleXBL(this);
+          ]]>
+        </getter>
+      </property>
+
+    </implementation>
   </binding>
 
 </bindings>