| /* |
| * Copyright (C) 2020 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package android.window; |
| |
| import android.annotation.NonNull; |
| import android.annotation.RequiresPermission; |
| import android.annotation.TestApi; |
| import android.os.RemoteException; |
| import android.util.Singleton; |
| |
| /** |
| * Interface for WindowManager to delegate control of display areas. |
| * @hide |
| */ |
| @TestApi |
| public class DisplayAreaOrganizer extends WindowOrganizer { |
| |
| public static final int FEATURE_UNDEFINED = -1; |
| public static final int FEATURE_SYSTEM_FIRST = 0; |
| // The Root display area on a display |
| public static final int FEATURE_ROOT = FEATURE_SYSTEM_FIRST; |
| // Display area hosting the default task container. |
| public static final int FEATURE_DEFAULT_TASK_CONTAINER = FEATURE_SYSTEM_FIRST + 1; |
| // Display area hosting non-activity window tokens. |
| public static final int FEATURE_WINDOW_TOKENS = FEATURE_SYSTEM_FIRST + 2; |
| |
| public static final int FEATURE_SYSTEM_LAST = 10_000; |
| |
| // Vendor specific display area definition can start with this value. |
| public static final int FEATURE_VENDOR_FIRST = FEATURE_SYSTEM_LAST + 1; |
| |
| @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) |
| public void registerOrganizer(int displayAreaFeature) { |
| try { |
| getController().registerOrganizer(mInterface, displayAreaFeature); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| public void onDisplayAreaAppeared(@NonNull WindowContainerToken displayArea) {} |
| |
| public void onDisplayAreaVanished(@NonNull WindowContainerToken displayArea) {} |
| |
| |
| private final IDisplayAreaOrganizer mInterface = new IDisplayAreaOrganizer.Stub() { |
| |
| @Override |
| public void onDisplayAreaAppeared(@NonNull WindowContainerToken displayArea) { |
| DisplayAreaOrganizer.this.onDisplayAreaAppeared(displayArea); |
| } |
| |
| @Override |
| public void onDisplayAreaVanished(@NonNull WindowContainerToken displayArea) { |
| DisplayAreaOrganizer.this.onDisplayAreaVanished(displayArea); |
| } |
| }; |
| |
| private static IDisplayAreaOrganizerController getController() { |
| return IDisplayAreaOrganizerControllerSingleton.get(); |
| } |
| |
| private static final Singleton<IDisplayAreaOrganizerController> |
| IDisplayAreaOrganizerControllerSingleton = |
| new Singleton<IDisplayAreaOrganizerController>() { |
| @Override |
| protected IDisplayAreaOrganizerController create() { |
| try { |
| return getWindowOrganizerController() |
| .getDisplayAreaOrganizerController(); |
| } catch (RemoteException e) { |
| return null; |
| } |
| } |
| }; |
| |
| } |