Bug 1138939 - Notify when WebIDE has finished initializing so that Valence can register runtime scanners. r=ochameau

browser/devtools/framework/gDevTools.jsm

@@ -778,6 +778,11 @@ let gDevToolsBrowser = {
     return !!(widgetWrapper && widgetWrapper.provider == CustomizableUI.PROVIDER_API);
   },
 
+  /**
+   * The deferred promise will be resolved by WebIDE's UI.init()
+   */
+  isWebIDEInitialized: promise.defer(),
+
   /**
    * Uninstall WebIDE widget
    */

browser/devtools/webide/content/webide.js

@@ -107,6 +107,8 @@ let UI = {
                                .QueryInterface(Ci.nsIDocShell)
                                .contentViewer;
     this.contentViewer.fullZoom = Services.prefs.getCharPref("devtools.webide.zoom");
+
+    gDevToolsBrowser.isWebIDEInitialized.resolve();
   },
 
   uninit: function() {

browser/devtools/webide/test/test_basic.html

@@ -21,6 +21,10 @@
         Task.spawn(function* () {
             let win = yield openWebIDE();
 
+            const {gDevToolsBrowser} = Cu.import("resource:///modules/devtools/gDevTools.jsm");
+            yield gDevToolsBrowser.isWebIDEInitialized.promise;
+            ok(true, "WebIDE was initialized");
+
             ok(win, "Found a window");
             ok(win.AppManager, "App Manager accessible");
             let appmgr = win.AppManager;