mirror of
https://github.com/LawnchairLauncher/lawnchair.git
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248 lines
9.9 KiB
Java
248 lines
9.9 KiB
Java
/*
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* Copyright (C) 2020 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.wm.shell.startingsurface;
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import static android.app.WindowConfiguration.WINDOWING_MODE_PINNED;
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import static android.graphics.Color.WHITE;
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import static android.os.Trace.TRACE_TAG_WINDOW_MANAGER;
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import static android.view.WindowManager.LayoutParams.TYPE_APPLICATION_STARTING;
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import static com.android.window.flags.Flags.windowSessionRelayoutInfo;
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import android.annotation.BinderThread;
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import android.annotation.NonNull;
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import android.annotation.Nullable;
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import android.app.ActivityManager;
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import android.app.ActivityManager.TaskDescription;
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import android.graphics.Paint;
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import android.graphics.Rect;
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import android.os.Bundle;
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import android.os.IBinder;
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import android.os.RemoteException;
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import android.os.Trace;
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import android.util.MergedConfiguration;
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import android.util.Slog;
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import android.view.IWindowSession;
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import android.view.InputChannel;
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import android.view.InsetsSourceControl;
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import android.view.InsetsState;
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import android.view.SurfaceControl;
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import android.view.View;
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import android.view.WindowManager;
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import android.view.WindowManagerGlobal;
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import android.view.WindowRelayoutResult;
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import android.window.ActivityWindowInfo;
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import android.window.ClientWindowFrames;
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import android.window.SnapshotDrawerUtils;
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import android.window.StartingWindowInfo;
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import android.window.TaskSnapshot;
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import com.android.internal.protolog.common.ProtoLog;
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import com.android.internal.view.BaseIWindow;
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import com.android.wm.shell.common.ShellExecutor;
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import com.android.wm.shell.protolog.ShellProtoLogGroup;
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import java.lang.ref.WeakReference;
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/**
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* This class represents a starting window that shows a snapshot.
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*
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* @hide
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*/
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public class TaskSnapshotWindow {
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private static final String TAG = StartingWindowController.TAG;
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private static final String TITLE_FORMAT = "SnapshotStartingWindow for taskId=";
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private final Window mWindow;
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private final Runnable mClearWindowHandler;
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private final ShellExecutor mSplashScreenExecutor;
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private final IWindowSession mSession;
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private boolean mHasDrawn;
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private final Paint mBackgroundPaint = new Paint();
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private final int mOrientationOnCreation;
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private final boolean mHasImeSurface;
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static TaskSnapshotWindow create(StartingWindowInfo info, IBinder appToken,
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TaskSnapshot snapshot, ShellExecutor splashScreenExecutor,
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@NonNull Runnable clearWindowHandler) {
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final ActivityManager.RunningTaskInfo runningTaskInfo = info.taskInfo;
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final int taskId = runningTaskInfo.taskId;
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// if we're in PIP we don't want to create the snapshot
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if (runningTaskInfo.getWindowingMode() == WINDOWING_MODE_PINNED) {
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ProtoLog.v(ShellProtoLogGroup.WM_SHELL_STARTING_WINDOW,
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"did not create taskSnapshot due to being in PIP");
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return null;
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}
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ProtoLog.v(ShellProtoLogGroup.WM_SHELL_STARTING_WINDOW,
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"create taskSnapshot surface for task: %d", taskId);
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final InsetsState topWindowInsetsState = info.topOpaqueWindowInsetsState;
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final WindowManager.LayoutParams layoutParams = SnapshotDrawerUtils.createLayoutParameters(
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info, TITLE_FORMAT + taskId, TYPE_APPLICATION_STARTING,
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snapshot.getHardwareBuffer().getFormat(), appToken);
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if (layoutParams == null) {
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Slog.e(TAG, "TaskSnapshotWindow no layoutParams");
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return null;
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}
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final int orientation = snapshot.getOrientation();
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final int displayId = runningTaskInfo.displayId;
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final IWindowSession session = WindowManagerGlobal.getWindowSession();
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final SurfaceControl surfaceControl = new SurfaceControl();
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final ClientWindowFrames tmpFrames = new ClientWindowFrames();
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final InsetsSourceControl.Array tmpControls = new InsetsSourceControl.Array();
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final MergedConfiguration tmpMergedConfiguration = new MergedConfiguration();
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final TaskDescription taskDescription =
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SnapshotDrawerUtils.getOrCreateTaskDescription(runningTaskInfo);
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final TaskSnapshotWindow snapshotSurface = new TaskSnapshotWindow(
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snapshot, taskDescription, orientation,
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clearWindowHandler, splashScreenExecutor);
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final Window window = snapshotSurface.mWindow;
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final InsetsState tmpInsetsState = new InsetsState();
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final InputChannel tmpInputChannel = new InputChannel();
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final float[] sizeCompatScale = { 1f };
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try {
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Trace.traceBegin(TRACE_TAG_WINDOW_MANAGER, "TaskSnapshot#addToDisplay");
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final int res = session.addToDisplay(window, layoutParams, View.GONE, displayId,
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info.requestedVisibleTypes, tmpInputChannel, tmpInsetsState, tmpControls,
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new Rect(), sizeCompatScale);
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Trace.traceEnd(TRACE_TAG_WINDOW_MANAGER);
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if (res < 0) {
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Slog.w(TAG, "Failed to add snapshot starting window res=" + res);
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return null;
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}
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} catch (RemoteException e) {
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snapshotSurface.clearWindowSynced();
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}
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try {
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Trace.traceBegin(TRACE_TAG_WINDOW_MANAGER, "TaskSnapshot#relayout");
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if (windowSessionRelayoutInfo()) {
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final WindowRelayoutResult outRelayoutResult = new WindowRelayoutResult(tmpFrames,
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tmpMergedConfiguration, surfaceControl, tmpInsetsState, tmpControls);
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session.relayout(window, layoutParams, -1, -1, View.VISIBLE, 0, 0, 0,
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outRelayoutResult);
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} else {
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session.relayoutLegacy(window, layoutParams, -1, -1, View.VISIBLE, 0, 0, 0,
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tmpFrames, tmpMergedConfiguration, surfaceControl, tmpInsetsState,
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tmpControls, new Bundle());
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}
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Trace.traceEnd(TRACE_TAG_WINDOW_MANAGER);
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} catch (RemoteException e) {
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snapshotSurface.clearWindowSynced();
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Slog.w(TAG, "Failed to relayout snapshot starting window");
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return null;
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}
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SnapshotDrawerUtils.drawSnapshotOnSurface(info, layoutParams, surfaceControl, snapshot,
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info.taskBounds, topWindowInsetsState, true /* releaseAfterDraw */);
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snapshotSurface.mHasDrawn = true;
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snapshotSurface.reportDrawn();
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return snapshotSurface;
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}
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public TaskSnapshotWindow(TaskSnapshot snapshot, TaskDescription taskDescription,
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int currentOrientation, Runnable clearWindowHandler,
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ShellExecutor splashScreenExecutor) {
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mSplashScreenExecutor = splashScreenExecutor;
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mSession = WindowManagerGlobal.getWindowSession();
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mWindow = new Window(this);
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mWindow.setSession(mSession);
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int backgroundColor = taskDescription.getBackgroundColor();
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mBackgroundPaint.setColor(backgroundColor != 0 ? backgroundColor : WHITE);
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mOrientationOnCreation = currentOrientation;
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mClearWindowHandler = clearWindowHandler;
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mHasImeSurface = snapshot.hasImeSurface();
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}
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int getBackgroundColor() {
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return mBackgroundPaint.getColor();
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}
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boolean hasImeSurface() {
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return mHasImeSurface;
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}
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void removeImmediately() {
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try {
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ProtoLog.v(ShellProtoLogGroup.WM_SHELL_STARTING_WINDOW,
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"Removing taskSnapshot surface, mHasDrawn=%b", mHasDrawn);
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mSession.remove(mWindow.asBinder());
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} catch (RemoteException e) {
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// nothing
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}
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}
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/**
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* Clear window from drawer, must be post on main executor.
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*/
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private void clearWindowSynced() {
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mSplashScreenExecutor.executeDelayed(mClearWindowHandler, 0);
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}
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private void reportDrawn() {
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try {
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mSession.finishDrawing(mWindow, null /* postDrawTransaction */, Integer.MAX_VALUE);
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} catch (RemoteException e) {
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clearWindowSynced();
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}
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}
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static class Window extends BaseIWindow {
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private final WeakReference<TaskSnapshotWindow> mOuter;
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Window(TaskSnapshotWindow outer) {
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mOuter = new WeakReference<>(outer);
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}
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@BinderThread
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@Override
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public void resized(ClientWindowFrames frames, boolean reportDraw,
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MergedConfiguration mergedConfiguration, InsetsState insetsState,
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boolean forceLayout, boolean alwaysConsumeSystemBars, int displayId, int seqId,
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boolean dragResizing, @Nullable ActivityWindowInfo activityWindowInfo) {
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final TaskSnapshotWindow snapshot = mOuter.get();
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if (snapshot == null) {
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return;
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}
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snapshot.mSplashScreenExecutor.execute(() -> {
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if (mergedConfiguration != null
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&& snapshot.mOrientationOnCreation
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!= mergedConfiguration.getMergedConfiguration().orientation) {
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// The orientation of the screen is changing. We better remove the snapshot
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// ASAP as we are going to wait on the new window in any case to unfreeze
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// the screen, and the starting window is not needed anymore.
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snapshot.clearWindowSynced();
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} else if (reportDraw) {
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if (snapshot.mHasDrawn) {
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snapshot.reportDrawn();
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}
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}
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});
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}
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}
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}
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