Merge "Disabled task snapshot for TV" into oc-dev

am: 08b953dd2e

Change-Id: I220460741e82abbfaf3746763cbb4b09e9357965

services/core/java/com/android/server/wm/TaskSnapshotController.java

@@ -17,15 +17,13 @@
 package com.android.server.wm;
 
 import static android.app.ActivityManager.ENABLE_TASK_SNAPSHOTS;
-import static android.graphics.Bitmap.Config.ARGB_8888;
-import static android.graphics.Bitmap.Config.HARDWARE;
 
 import android.annotation.Nullable;
 import android.app.ActivityManager;
 import android.app.ActivityManager.StackId;
 import android.app.ActivityManager.TaskSnapshot;
+import android.content.pm.PackageManager;
 import android.graphics.Bitmap;
-import android.graphics.Canvas;
 import android.graphics.GraphicBuffer;
 import android.graphics.Rect;
 import android.os.Environment;
@@ -89,9 +87,16 @@ class TaskSnapshotController {
     private final ArraySet<Task> mTmpTasks = new ArraySet<>();
     private final Handler mHandler = new Handler();
 
+    /**
+     * Flag indicating whether we are running on an Android TV device.
+     */
+    private final boolean mIsRunningOnTv;
+
     TaskSnapshotController(WindowManagerService service) {
         mService = service;
         mCache = new TaskSnapshotCache(mService, mLoader);
+        mIsRunningOnTv = mService.mContext.getPackageManager().hasSystemFeature(
+                PackageManager.FEATURE_LEANBACK);
     }
 
     void systemReady() {
@@ -112,7 +117,7 @@ class TaskSnapshotController {
     }
 
     private void handleClosingApps(ArraySet<AppWindowToken> closingApps) {
-        if (!ENABLE_TASK_SNAPSHOTS || ActivityManager.isLowRamDeviceStatic()) {
+        if (shouldDisableSnapshots()) {
             return;
         }
 
@@ -188,6 +193,10 @@ class TaskSnapshotController {
                 1f /* scale */);
     }
 
+    private boolean shouldDisableSnapshots() {
+        return !ENABLE_TASK_SNAPSHOTS || ActivityManager.isLowRamDeviceStatic() || mIsRunningOnTv;
+    }
+
     private Rect minRect(Rect rect1, Rect rect2) {
         return new Rect(Math.min(rect1.left, rect2.left),
                 Math.min(rect1.top, rect2.top),
@@ -301,7 +310,7 @@ class TaskSnapshotController {
      * Called when screen is being turned off.
      */
     void screenTurningOff(ScreenOffListener listener) {
-        if (!ENABLE_TASK_SNAPSHOTS || ActivityManager.isLowRamDeviceStatic()) {
+        if (shouldDisableSnapshots()) {
             listener.onScreenOff();
             return;
         }

services/core/java/com/android/server/wm/WindowManagerService.java

@@ -601,7 +601,7 @@ public class WindowManagerService extends IWindowManager.Stub
 
     final UnknownAppVisibilityController mUnknownAppVisibilityController =
             new UnknownAppVisibilityController(this);
-    final TaskSnapshotController mTaskSnapshotController = new TaskSnapshotController(this);
+    final TaskSnapshotController mTaskSnapshotController;
 
     boolean mIsTouchDevice;
 
@@ -992,6 +992,7 @@ public class WindowManagerService extends IWindowManager.Stub
 
         mWindowPlacerLocked = new WindowSurfacePlacer(this);
         mPolicy = policy;
+        mTaskSnapshotController = new TaskSnapshotController(this);
 
         LocalServices.addService(WindowManagerPolicy.class, mPolicy);