Bug 696282 - Implement native toast alert support [r=mfinkle]

embedding/android/GeckoApp.java

@@ -654,6 +654,10 @@ abstract public class GeckoApp
                         return;
                     }
                 }
+            } else if (event.equals("Toast:Show")) {
+                final String msg = message.getString("message");
+                final String duration = message.getString("duration");
+                handleShowToast(msg, duration);
             } else if (event.equals("DOMContentLoaded")) {
                 final int tabId = message.getInt("tabID");
                 final String uri = message.getString("uri");
@@ -871,6 +875,19 @@ abstract public class GeckoApp
         });
     }
 
+    void handleShowToast(final String message, final String duration) {
+        mMainHandler.post(new Runnable() {
+            public void run() {
+                Toast toast;
+                if (duration.equals("long"))
+                    toast = Toast.makeText(mAppContext, message, Toast.LENGTH_LONG);
+                else
+                    toast = Toast.makeText(mAppContext, message, Toast.LENGTH_SHORT);
+                toast.show();
+            }
+        });
+    }
+
     void handleContentLoaded(final int tabId, final String uri, final String title) {
         Tab tab = Tabs.getInstance().getTab(tabId);
         if (tab == null)
@@ -1113,6 +1130,7 @@ abstract public class GeckoApp
         GeckoAppShell.registerGeckoEventListener("Menu:Remove", GeckoApp.mAppContext);
         GeckoAppShell.registerGeckoEventListener("Preferences:Data", GeckoApp.mAppContext);
         GeckoAppShell.registerGeckoEventListener("Gecko:Ready", GeckoApp.mAppContext);
+        GeckoAppShell.registerGeckoEventListener("Toast:Show", GeckoApp.mAppContext);
 
         mConnectivityFilter = new IntentFilter();
         mConnectivityFilter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);
@@ -1310,6 +1328,7 @@ abstract public class GeckoApp
         GeckoAppShell.unregisterGeckoEventListener("Menu:Remove", GeckoApp.mAppContext);
         GeckoAppShell.unregisterGeckoEventListener("Preferences:Data", GeckoApp.mAppContext);
         GeckoAppShell.unregisterGeckoEventListener("Gecko:Ready", GeckoApp.mAppContext);
+        GeckoAppShell.unregisterGeckoEventListener("Toast:Show", GeckoApp.mAppContext);
 
         super.onDestroy();
     }

mobile/chrome/content/browser.js

@@ -101,7 +101,6 @@ var BrowserApp = {
         type: "Gecko:Ready"
       }
     });
-
   },
 
   shutdown: function shutdown() {
@@ -288,7 +287,7 @@ var BrowserApp = {
       
       for each (let prefName in json) {
         let pref = {
-          name: prefName,
+          name: prefName
         };
 
         try {
@@ -340,7 +339,6 @@ var BrowserApp = {
           preferences: prefs
         }
       });
-
     } catch (e) {}
   },
 
@@ -412,11 +410,30 @@ var NativeWindow = {
     Services.obs.removeObserver(this, "Menu:Clicked");
   },
 
+  toast: {
+    show: function(aMessage, aDuration) {
+      sendMessageToJava({
+        gecko: {
+          type: "Toast:Show",
+          message: aMessage,
+          duration: aDuration
+        }
+      });
+    }
+  },
+
   menu: {
     _callbacks: [],
     _menuId: 0,
     add: function(aName, aIcon, aCallback) {
-      sendMessageToJava({ gecko: {type: "Menu:Add", name: aName, icon: aIcon, id: this._menuId }});
+      sendMessageToJava({
+        gecko: {
+          type: "Menu:Add",
+          name: aName,
+          icon: aIcon,
+          id: this._menuId
+        }
+      });
       this._callbacks[this._menuId] = aCallback;
       this._menuId++;
       return this._menuId - 1;