Merge pull request #287 from clavelm/issue286

RootPresenter.RootView : add and use the protected method getAppRootPane...

Author: christiangoudreau

gwtp-core/gwtp-mvp-client/src/main/java/com/gwtplatform/mvp/client/RootPresenter.java

@@ -82,24 +82,35 @@ public void setInSlot(Object slot, IsWidget content) {
             if (usingRootLayoutPanel) {
                 // TODO Next 3 lines are a dirty workaround for
                 // http://code.google.com/p/google-web-toolkit/issues/detail?id=4737
-                RootPanel.get().clear();
+                getAppRootPanel().clear();
                 RootLayoutPanel.get().clear();
-                RootPanel.get().add(RootLayoutPanel.get());
+                getAppRootPanel().add(RootLayoutPanel.get());
                 if (content != null) {
                     RootLayoutPanel.get().add(content);
                 }
             } else {
                 // TODO Next 2 lines are a dirty workaround for
                 // http://code.google.com/p/google-web-toolkit/issues/detail?id=4737
                 RootLayoutPanel.get().clear();
-                RootPanel.get().clear();
+                getAppRootPanel().clear();
                 if (content != null) {
-                    RootPanel.get().add(content);
+                    getAppRootPanel().add(content);
                 }
             }
         }
 
-        private void setUsingRootLayoutPanel(boolean usingRootLayoutPanel) {
+        /**
+         * Return the RootPanel on which to add the content.
+         * <p />
+         * It returns the default RootPanel.
+         * It can be overriden to return another RootPanel to allow embeding the application.
+         * @return the RootPanel on which to add the content
+         */
+        protected RootPanel getAppRootPanel() {
+            return RootPanel.get();
+        }
+
+        private void setUsingRootLayoutPanel(final boolean usingRootLayoutPanel) {
             this.usingRootLayoutPanel = usingRootLayoutPanel;
         }
 
@@ -175,6 +186,7 @@ public void onRevealRootContent(
         setInSlot(rootSlot, revealContentEvent.getContent());
     }
 
+    @Override
     public void onRevealRootLayoutContent(
             final RevealRootLayoutContentEvent revealContentEvent) {
         getView().setUsingRootLayoutPanel(true);