Bug 963779 - use handleEvent for Australis command handler, r=mconley

browser/components/customizableui/content/panelUI.js

@@ -165,6 +165,9 @@ const PanelUI = {
 
   handleEvent: function(aEvent) {
     switch (aEvent.type) {
+      case "command":
+        this.onCommandHandler(aEvent);
+        break;
       case "popupshowing":
         // Fall through
       case "popupshown":
@@ -408,11 +411,11 @@ const PanelUI = {
     }
     items.appendChild(fragment);
 
-    this.addEventListener("command", PanelUI.onCommandHandler);
+    this.addEventListener("command", PanelUI);
   },
 
   _onHelpViewHide: function(aEvent) {
-    this.removeEventListener("command", PanelUI.onCommandHandler);
+    this.removeEventListener("command", PanelUI);
   }
 };
 

browser/components/customizableui/src/CustomizableWidgets.jsm

@@ -268,7 +268,7 @@ const CustomizableWidgets = [{
       }
       items.appendChild(fragment);
 
-      aEvent.target.addEventListener("command", win.PanelUI.onCommandHandler);
+      aEvent.target.addEventListener("command", win.PanelUI);
     },
     onViewHiding: function(aEvent) {
       let doc = aEvent.target.ownerDocument;
@@ -284,8 +284,7 @@ const CustomizableWidgets = [{
       }
 
       parent.appendChild(items);
-      aEvent.target.removeEventListener("command",
-                                        win.PanelUI.onCommandHandler);
+      aEvent.target.removeEventListener("command", win.PanelUI);
     }
   }, {
     id: "add-ons-button",