Merge "Changing TaskStackChangeListener to an interface" into tm-dev am: 3b952a4a1c

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17724905

Change-Id: Ib72c0efba78a06c11a733bb9d1fad59ba9921843
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>

packages/SystemUI/shared/src/com/android/systemui/shared/rotation/RotationButtonController.java

@@ -568,7 +568,7 @@ public class RotationButtonController {
         }
     }
 
-    private class TaskStackListenerImpl extends TaskStackChangeListener {
+    private class TaskStackListenerImpl implements TaskStackChangeListener {
         // Invalidate any rotation suggestion on task change or activity orientation change
         // Note: all callbacks happen on main thread
 

packages/SystemUI/shared/src/com/android/systemui/shared/system/TaskStackChangeListener.java

@@ -26,30 +26,30 @@ import com.android.systemui.shared.recents.model.ThumbnailData;
  * An interface to track task stack changes. Classes should implement this instead of
  * {@link android.app.ITaskStackListener} to reduce IPC calls from system services.
  */
-public abstract class TaskStackChangeListener {
+public interface TaskStackChangeListener {
 
     // Binder thread callbacks
-    public void onTaskStackChangedBackground() { }
+    default void onTaskStackChangedBackground() { }
 
     // Main thread callbacks
-    public void onTaskStackChanged() { }
+    default void onTaskStackChanged() { }
-    public void onTaskSnapshotChanged(int taskId, ThumbnailData snapshot) { }
+    default void onTaskSnapshotChanged(int taskId, ThumbnailData snapshot) { }
-    public void onActivityPinned(String packageName, int userId, int taskId, int stackId) { }
+    default void onActivityPinned(String packageName, int userId, int taskId, int stackId) { }
-    public void onActivityUnpinned() { }
+    default void onActivityUnpinned() { }
-    public void onActivityRestartAttempt(RunningTaskInfo task, boolean homeTaskVisible,
+    default void onActivityRestartAttempt(RunningTaskInfo task, boolean homeTaskVisible,
             boolean clearedTask, boolean wasVisible) { }
-    public void onActivityForcedResizable(String packageName, int taskId, int reason) { }
+    default void onActivityForcedResizable(String packageName, int taskId, int reason) { }
-    public void onActivityDismissingDockedStack() { }
+    default void onActivityDismissingDockedStack() { }
-    public void onActivityLaunchOnSecondaryDisplayFailed() { }
+    default void onActivityLaunchOnSecondaryDisplayFailed() { }
 
-    public void onActivityLaunchOnSecondaryDisplayFailed(RunningTaskInfo taskInfo) {
+    default void onActivityLaunchOnSecondaryDisplayFailed(RunningTaskInfo taskInfo) {
         onActivityLaunchOnSecondaryDisplayFailed();
     }
 
     /**
      * @see #onActivityLaunchOnSecondaryDisplayRerouted(RunningTaskInfo taskInfo)
      */
-    public void onActivityLaunchOnSecondaryDisplayRerouted() { }
+    default void onActivityLaunchOnSecondaryDisplayRerouted() { }
 
     /**
      * Called when an activity was requested to be launched on a secondary display but was rerouted
@@ -57,16 +57,16 @@ public abstract class TaskStackChangeListener {
      *
      * @param taskInfo info about the Activity's task
      */
-    public void onActivityLaunchOnSecondaryDisplayRerouted(RunningTaskInfo taskInfo) {
+    default void onActivityLaunchOnSecondaryDisplayRerouted(RunningTaskInfo taskInfo) {
         onActivityLaunchOnSecondaryDisplayRerouted();
     }
 
-    public void onTaskProfileLocked(int taskId, int userId) { }
+    default void onTaskProfileLocked(int taskId, int userId) { }
-    public void onTaskCreated(int taskId, ComponentName componentName) { }
+    default void onTaskCreated(int taskId, ComponentName componentName) { }
-    public void onTaskRemoved(int taskId) { }
+    default void onTaskRemoved(int taskId) { }
-    public void onTaskMovedToFront(int taskId) { }
+    default void onTaskMovedToFront(int taskId) { }
 
-    public void onTaskMovedToFront(RunningTaskInfo taskInfo) {
+    default void onTaskMovedToFront(RunningTaskInfo taskInfo) {
         onTaskMovedToFront(taskInfo.taskId);
     }
 
@@ -74,13 +74,14 @@ public abstract class TaskStackChangeListener {
      * Called when a task’s description is changed due to an activity calling
      * ActivityManagerService.setTaskDescription
      *
-     * @param taskInfo info about the task which changed, with {@link TaskInfo#taskDescription}
+     * @param taskInfo info about the task which changed, with
+     * {@link RunningTaskInfo#taskDescription}
      */
-    public void onTaskDescriptionChanged(RunningTaskInfo taskInfo) { }
+    default void onTaskDescriptionChanged(RunningTaskInfo taskInfo) { }
 
-    public void onActivityRequestedOrientationChanged(int taskId, int requestedOrientation) { }
+    default void onActivityRequestedOrientationChanged(int taskId, int requestedOrientation) { }
 
-    public void onBackPressedOnTaskRoot(RunningTaskInfo taskInfo) { }
+    default void onBackPressedOnTaskRoot(RunningTaskInfo taskInfo) { }
 
     /**
      * Called when a task is reparented to a stack on a different display.
@@ -88,22 +89,22 @@ public abstract class TaskStackChangeListener {
      * @param taskId id of the task which was moved to a different display.
      * @param newDisplayId id of the new display.
      */
-    public void onTaskDisplayChanged(int taskId, int newDisplayId) { }
+    default void onTaskDisplayChanged(int taskId, int newDisplayId) { }
 
     /**
      * Called when any additions or deletions to the recent tasks list have been made.
      */
-    public void onRecentTaskListUpdated() { }
+    default void onRecentTaskListUpdated() { }
 
     /** @see ITaskStackListener#onRecentTaskListFrozenChanged(boolean) */
-    public void onRecentTaskListFrozenChanged(boolean frozen) { }
+    default void onRecentTaskListFrozenChanged(boolean frozen) { }
 
     /** @see ITaskStackListener#onActivityRotation(int)*/
-    public void onActivityRotation(int displayId) { }
+    default void onActivityRotation(int displayId) { }
 
     /**
      * Called when the lock task mode changes. See ActivityManager#LOCK_TASK_MODE_* and
      * LockTaskController.
      */
-    public void onLockTaskModeChanged(int mode) { }
+    default void onLockTaskModeChanged(int mode) { }
 }