| /* |
| * 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.Nullable; |
| import android.annotation.RequiresPermission; |
| import android.annotation.TestApi; |
| import android.app.ActivityTaskManager; |
| import android.os.RemoteException; |
| import android.util.Singleton; |
| import android.view.SurfaceControl; |
| |
| /** |
| * Base class for organizing specific types of windows like Tasks and DisplayAreas |
| * |
| * @hide |
| */ |
| @TestApi |
| public class WindowOrganizer { |
| |
| /** |
| * Apply multiple WindowContainer operations at once. |
| * @param t The transaction to apply. |
| */ |
| @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) |
| public static void applyTransaction(@NonNull WindowContainerTransaction t) { |
| try { |
| getWindowOrganizerController().applyTransaction(t); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Apply multiple WindowContainer operations at once. |
| * @param t The transaction to apply. |
| * @param callback This transaction will use the synchronization scheme described in |
| * BLASTSyncEngine.java. The SurfaceControl transaction containing the effects of this |
| * WindowContainer transaction will be passed to this callback when ready. |
| * @return An ID for the sync operation which will later be passed to transactionReady callback. |
| * This lets the caller differentiate overlapping sync operations. |
| */ |
| @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) |
| public int applySyncTransaction(@NonNull WindowContainerTransaction t, |
| @NonNull WindowContainerTransactionCallback callback) { |
| try { |
| return getWindowOrganizerController().applySyncTransaction(t, callback.mInterface); |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| /** |
| * Take a screenshot for a specified Window |
| * @param token The token for the WindowContainer that should get a screenshot taken. |
| * @return A SurfaceControl where the screenshot will be attached, or null if failed. |
| * |
| * @hide |
| */ |
| @Nullable |
| @RequiresPermission(android.Manifest.permission.READ_FRAME_BUFFER) |
| public static SurfaceControl takeScreenshot(@NonNull WindowContainerToken token) { |
| try { |
| SurfaceControl surfaceControl = new SurfaceControl(); |
| if (getWindowOrganizerController().takeScreenshot(token, surfaceControl)) { |
| return surfaceControl; |
| } else { |
| return null; |
| } |
| } catch (RemoteException e) { |
| throw e.rethrowFromSystemServer(); |
| } |
| } |
| |
| @RequiresPermission(android.Manifest.permission.MANAGE_ACTIVITY_STACKS) |
| static IWindowOrganizerController getWindowOrganizerController() { |
| return IWindowOrganizerControllerSingleton.get(); |
| } |
| |
| private static final Singleton<IWindowOrganizerController> IWindowOrganizerControllerSingleton = |
| new Singleton<IWindowOrganizerController>() { |
| @Override |
| protected IWindowOrganizerController create() { |
| try { |
| return ActivityTaskManager.getService().getWindowOrganizerController(); |
| } catch (RemoteException e) { |
| return null; |
| } |
| } |
| }; |
| } |