| /* |
| * Copyright (C) 2019 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 com.android.server.wm; |
| |
| import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY; |
| import static android.view.WindowManager.LayoutParams.TYPE_DOCK_DIVIDER; |
| import static android.view.WindowManager.SHELL_ROOT_LAYER_DIVIDER; |
| import static android.view.WindowManager.SHELL_ROOT_LAYER_PIP; |
| |
| import static com.android.server.wm.SurfaceAnimator.ANIMATION_TYPE_WINDOW_ANIMATION; |
| import static com.android.server.wm.WindowManagerService.MAX_ANIMATION_DURATION; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.graphics.Point; |
| import android.os.IBinder; |
| import android.os.RemoteException; |
| import android.util.Slog; |
| import android.view.DisplayInfo; |
| import android.view.IWindow; |
| import android.view.SurfaceControl; |
| import android.view.WindowManager; |
| import android.view.animation.Animation; |
| |
| /** |
| * Represents a piece of the hierarchy under which a client Shell can manage sub-windows. |
| */ |
| public class ShellRoot { |
| private static final String TAG = "ShellRoot"; |
| private final DisplayContent mDisplayContent; |
| private final int mShellRootLayer; |
| private IWindow mClient; |
| private WindowToken mToken; |
| private final IBinder.DeathRecipient mDeathRecipient; |
| private SurfaceControl mSurfaceControl = null; |
| private IWindow mAccessibilityWindow; |
| private IBinder.DeathRecipient mAccessibilityWindowDeath; |
| private int mWindowType; |
| |
| ShellRoot(@NonNull IWindow client, @NonNull DisplayContent dc, |
| @WindowManager.ShellRootLayer final int shellRootLayer) { |
| mDisplayContent = dc; |
| mShellRootLayer = shellRootLayer; |
| mDeathRecipient = () -> mDisplayContent.removeShellRoot(shellRootLayer); |
| try { |
| client.asBinder().linkToDeath(mDeathRecipient, 0); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Unable to add shell root layer " + shellRootLayer + " on display " |
| + dc.getDisplayId(), e); |
| return; |
| } |
| mClient = client; |
| switch (shellRootLayer) { |
| case SHELL_ROOT_LAYER_DIVIDER: |
| mWindowType = TYPE_DOCK_DIVIDER; |
| break; |
| case SHELL_ROOT_LAYER_PIP: |
| mWindowType = TYPE_APPLICATION_OVERLAY; |
| break; |
| default: |
| throw new IllegalArgumentException(shellRootLayer |
| + " is not an acceptable shell root layer."); |
| } |
| mToken = new WindowToken.Builder(dc.mWmService, client.asBinder(), mWindowType) |
| .setDisplayContent(dc) |
| .setPersistOnEmpty(true) |
| .setOwnerCanManageAppTokens(true) |
| .build(); |
| mSurfaceControl = mToken.makeChildSurface(null) |
| .setContainerLayer() |
| .setName("Shell Root Leash " + dc.getDisplayId()) |
| .setCallsite("ShellRoot") |
| .build(); |
| mToken.getPendingTransaction().show(mSurfaceControl); |
| } |
| |
| int getWindowType() { |
| return mWindowType; |
| } |
| |
| void clear() { |
| if (mClient != null) { |
| mClient.asBinder().unlinkToDeath(mDeathRecipient, 0); |
| mClient = null; |
| } |
| if (mToken != null) { |
| mToken.removeImmediately(); |
| mToken = null; |
| } |
| } |
| |
| SurfaceControl getSurfaceControl() { |
| return mSurfaceControl; |
| } |
| |
| IWindow getClient() { |
| return mClient; |
| } |
| |
| void startAnimation(Animation anim) { |
| // Only do this for the divider |
| if (mToken.windowType != TYPE_DOCK_DIVIDER) { |
| return; |
| } |
| |
| DisplayInfo displayInfo = mToken.getFixedRotationTransformDisplayInfo(); |
| if (displayInfo == null) { |
| displayInfo = mDisplayContent.getDisplayInfo(); |
| } |
| |
| // Mostly copied from WindowState to enable keyguard transition animation |
| anim.initialize(displayInfo.logicalWidth, displayInfo.logicalHeight, |
| displayInfo.appWidth, displayInfo.appHeight); |
| anim.restrictDuration(MAX_ANIMATION_DURATION); |
| anim.scaleCurrentDuration(mDisplayContent.mWmService.getWindowAnimationScaleLocked()); |
| final AnimationAdapter adapter = new LocalAnimationAdapter( |
| new WindowAnimationSpec(anim, new Point(0, 0), false /* canSkipFirstFrame */, |
| 0 /* windowCornerRadius */), |
| mDisplayContent.mWmService.mSurfaceAnimationRunner); |
| mToken.startAnimation(mToken.getPendingTransaction(), adapter, false /* hidden */, |
| ANIMATION_TYPE_WINDOW_ANIMATION); |
| } |
| |
| @Nullable |
| IBinder getAccessibilityWindowToken() { |
| if (mAccessibilityWindow != null) { |
| return mAccessibilityWindow.asBinder(); |
| } |
| return null; |
| } |
| |
| void setAccessibilityWindow(IWindow window) { |
| if (mAccessibilityWindow != null) { |
| mAccessibilityWindow.asBinder().unlinkToDeath(mAccessibilityWindowDeath, 0); |
| } |
| mAccessibilityWindow = window; |
| if (mAccessibilityWindow != null) { |
| try { |
| mAccessibilityWindowDeath = () -> { |
| synchronized (mDisplayContent.mWmService.mGlobalLock) { |
| mAccessibilityWindow = null; |
| setAccessibilityWindow(null); |
| } |
| }; |
| mAccessibilityWindow.asBinder().linkToDeath(mAccessibilityWindowDeath, 0); |
| } catch (RemoteException e) { |
| mAccessibilityWindow = null; |
| } |
| } |
| } |
| } |