Bug 975239 - (Part 2) Request a home banner message when the HomePager loads. r=bnicholson

mobile/android/base/home/HomeBanner.java

@@ -98,7 +98,6 @@ public class HomeBanner extends LinearLayout
         });
 
         GeckoAppShell.getEventDispatcher().registerEventListener("HomeBanner:Data", this);
-        GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("HomeBanner:Get", null));
     }
 
     @Override
@@ -123,6 +122,13 @@ public class HomeBanner extends LinearLayout
         mScrollingPages = scrollingPages;
     }
 
+    /**
+     * Sends a message to gecko to request a new banner message. UI is updated in handleMessage.
+     */
+    public void update() {
+        GeckoAppShell.sendEventToGecko(GeckoEvent.createBroadcastEvent("HomeBanner:Get", null));
+    }
+
     @Override
     public void handleMessage(String event, JSONObject message) {
         try {

mobile/android/base/home/HomePager.java

@@ -155,6 +155,11 @@ public class HomePager extends ViewPager {
         mLoaded = true;
         mInitialPanelId = panelId;
 
+        // Update the home banner message each time the HomePager is loaded.
+        if (mHomeBanner != null) {
+            mHomeBanner.update();
+        }
+
         // Only animate on post-HC devices, when a non-null animator is given
         final boolean shouldAnimate = (animator != null && Build.VERSION.SDK_INT >= 11);