Fixing preloading recents for all devices

- Fixed for tablets and phones with hard nav buttons

Change-Id: I1dc2249376b3f376c283598f5cef6e326b191ace

Author: mikejurka

packages/SystemUI/src/com/android/systemui/recent/RecentTasksLoader.java

@@ -254,10 +254,9 @@ public void run() {
     public boolean onTouch(View v, MotionEvent ev) {
         int action = ev.getAction() & MotionEvent.ACTION_MASK;
         if (action == MotionEvent.ACTION_DOWN) {
-            mHandler.post(mPreloadTasksRunnable);
+            preloadRecentTasksList();
         } else if (action == MotionEvent.ACTION_CANCEL) {
-            cancelLoadingThumbnailsAndIcons();
-            mHandler.removeCallbacks(mPreloadTasksRunnable);
+            cancelPreloadingRecentTasksList();
         } else if (action == MotionEvent.ACTION_UP) {
             // Remove the preloader if we haven't called it yet
             mHandler.removeCallbacks(mPreloadTasksRunnable);
@@ -269,6 +268,15 @@ public boolean onTouch(View v, MotionEvent ev) {
         return false;
     }
 
+    public void preloadRecentTasksList() {
+        mHandler.post(mPreloadTasksRunnable);
+    }
+
+    public void cancelPreloadingRecentTasksList() {
+        cancelLoadingThumbnailsAndIcons();
+        mHandler.removeCallbacks(mPreloadTasksRunnable);
+    }
+
     public void cancelLoadingThumbnailsAndIcons(RecentsPanelView caller) {
         // Only oblige this request if it comes from the current RecentsPanel
         // (eg when you rotate, the old RecentsPanel request should be ignored)

packages/SystemUI/src/com/android/systemui/statusbar/BaseStatusBar.java

@@ -594,25 +594,11 @@ public void handleMessage(Message m) {
                  break;
              case MSG_PRELOAD_RECENT_APPS:
                   if (DEBUG) Slog.d(TAG, "preloading recents");
-                  {
-                      // TODO:
-                      // need to implement this
-                      //final RecentsPanelView recentsPanel = getRecentsPanel();
-                      //if (recentsPanel != null) {
-                      //recentsPanel.preloadRecentTasksList();
-                      //}
-                  }
+                  getRecentTasksLoader().preloadRecentTasksList();
                   break;
              case MSG_CANCEL_PRELOAD_RECENT_APPS:
                   if (DEBUG) Slog.d(TAG, "cancel preloading recents");
-                  {
-                      // TODO:
-                      // need to implement this
-                      //final RecentsPanelView recentsPanel = getRecentsPanel();
-                      //if (recentsPanel != null) {
-                      //recentsPanel.clearRecentTasksList();
-                      //}
-                  }
+                  getRecentTasksLoader().cancelPreloadingRecentTasksList();
                   break;
              case MSG_OPEN_SEARCH_PANEL:
                  if (DEBUG) Slog.d(TAG, "opening search panel");

packages/SystemUI/src/com/android/systemui/statusbar/tablet/TabletStatusBar.java

@@ -355,7 +355,7 @@ protected void addPanelWindows() {
 
         mWindowManager.addView(mCompatModePanel, lp);
 
-        //mRecentButton.setOnTouchListener(mRecentsPanel); //TODO: plumb this
+        mRecentButton.setOnTouchListener(getRecentTasksLoader());
 
         mPile = (NotificationRowLayout)mNotificationPanel.findViewById(R.id.content);
         mPile.removeAllViews();