| /* |
| * Copyright (C) 2018 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 com.android.server.wm.AnimationAdapterProto.REMOTE; |
| import static com.android.server.wm.RemoteAnimationAdapterWrapperProto.TARGET; |
| import static com.android.server.wm.WindowManagerDebugConfig.DEBUG_APP_TRANSITIONS; |
| import static com.android.server.wm.WindowManagerDebugConfig.TAG_WITH_CLASS_NAME; |
| import static com.android.server.wm.WindowManagerDebugConfig.TAG_WM; |
| |
| import android.graphics.Point; |
| import android.graphics.Rect; |
| import android.os.Binder; |
| import android.os.Handler; |
| import android.os.RemoteException; |
| import android.os.SystemClock; |
| import android.util.Slog; |
| import android.util.proto.ProtoOutputStream; |
| import android.view.IRemoteAnimationFinishedCallback; |
| import android.view.RemoteAnimationAdapter; |
| import android.view.RemoteAnimationTarget; |
| import android.view.SurfaceControl; |
| import android.view.SurfaceControl.Transaction; |
| |
| import com.android.internal.util.FastPrintWriter; |
| import com.android.server.wm.SurfaceAnimator.OnAnimationFinishedCallback; |
| import com.android.server.wm.utils.InsetUtils; |
| |
| import java.io.PrintWriter; |
| import java.io.StringWriter; |
| import java.util.ArrayList; |
| |
| /** |
| * Helper class to run app animations in a remote process. |
| */ |
| class RemoteAnimationController { |
| private static final String TAG = TAG_WITH_CLASS_NAME ? "RemoteAnimationController" : TAG_WM; |
| private static final long TIMEOUT_MS = 2000; |
| |
| private final WindowManagerService mService; |
| private final RemoteAnimationAdapter mRemoteAnimationAdapter; |
| private final ArrayList<RemoteAnimationAdapterWrapper> mPendingAnimations = new ArrayList<>(); |
| private final Rect mTmpRect = new Rect(); |
| private final Handler mHandler; |
| private FinishedCallback mFinishedCallback; |
| |
| private final Runnable mTimeoutRunnable = () -> { |
| onAnimationFinished(); |
| invokeAnimationCancelled(); |
| }; |
| |
| RemoteAnimationController(WindowManagerService service, |
| RemoteAnimationAdapter remoteAnimationAdapter, Handler handler) { |
| mService = service; |
| mRemoteAnimationAdapter = remoteAnimationAdapter; |
| mHandler = handler; |
| } |
| |
| /** |
| * Creates an animation for each individual {@link AppWindowToken}. |
| * |
| * @param appWindowToken The app to animate. |
| * @param position The position app bounds, in screen coordinates. |
| * @param stackBounds The stack bounds of the app. |
| * @return The adapter to be run on the app. |
| */ |
| AnimationAdapter createAnimationAdapter(AppWindowToken appWindowToken, Point position, |
| Rect stackBounds) { |
| final RemoteAnimationAdapterWrapper adapter = new RemoteAnimationAdapterWrapper( |
| appWindowToken, position, stackBounds); |
| mPendingAnimations.add(adapter); |
| return adapter; |
| } |
| |
| /** |
| * Called when the transition is ready to be started, and all leashes have been set up. |
| */ |
| void goodToGo() { |
| if (mPendingAnimations.isEmpty()) { |
| onAnimationFinished(); |
| return; |
| } |
| |
| // Scale the timeout with the animator scale the controlling app is using. |
| mHandler.postDelayed(mTimeoutRunnable, |
| (long) (TIMEOUT_MS * mService.getCurrentAnimatorScale())); |
| mFinishedCallback = new FinishedCallback(this); |
| |
| final RemoteAnimationTarget[] animations = createAnimations(); |
| if (animations.length == 0) { |
| onAnimationFinished(); |
| return; |
| } |
| mService.mAnimator.addAfterPrepareSurfacesRunnable(() -> { |
| try { |
| mRemoteAnimationAdapter.getRunner().onAnimationStart(animations, |
| mFinishedCallback); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Failed to start remote animation", e); |
| onAnimationFinished(); |
| } |
| }); |
| sendRunningRemoteAnimation(true); |
| if (DEBUG_APP_TRANSITIONS) { |
| writeStartDebugStatement(); |
| } |
| } |
| |
| private void writeStartDebugStatement() { |
| Slog.i(TAG, "Starting remote animation"); |
| final StringWriter sw = new StringWriter(); |
| final FastPrintWriter pw = new FastPrintWriter(sw); |
| for (int i = mPendingAnimations.size() - 1; i >= 0; i--) { |
| mPendingAnimations.get(i).dump(pw, ""); |
| } |
| pw.close(); |
| Slog.i(TAG, sw.toString()); |
| } |
| |
| private RemoteAnimationTarget[] createAnimations() { |
| final ArrayList<RemoteAnimationTarget> targets = new ArrayList<>(); |
| for (int i = mPendingAnimations.size() - 1; i >= 0; i--) { |
| final RemoteAnimationTarget target = |
| mPendingAnimations.get(i).createRemoteAppAnimation(); |
| if (target != null) { |
| targets.add(target); |
| } else { |
| mPendingAnimations.remove(i); |
| } |
| } |
| return targets.toArray(new RemoteAnimationTarget[targets.size()]); |
| } |
| |
| private void onAnimationFinished() { |
| mHandler.removeCallbacks(mTimeoutRunnable); |
| synchronized (mService.mWindowMap) { |
| releaseFinishedCallback(); |
| mService.openSurfaceTransaction(); |
| try { |
| for (int i = mPendingAnimations.size() - 1; i >= 0; i--) { |
| final RemoteAnimationAdapterWrapper adapter = mPendingAnimations.get(i); |
| adapter.mCapturedFinishCallback.onAnimationFinished(adapter); |
| } |
| } finally { |
| mService.closeSurfaceTransaction("RemoteAnimationController#finished"); |
| } |
| } |
| sendRunningRemoteAnimation(false); |
| if (DEBUG_APP_TRANSITIONS) Slog.i(TAG, "Finishing remote animation"); |
| } |
| |
| private void invokeAnimationCancelled() { |
| try { |
| mRemoteAnimationAdapter.getRunner().onAnimationCancelled(); |
| } catch (RemoteException e) { |
| Slog.e(TAG, "Failed to notify cancel", e); |
| } |
| } |
| |
| private void releaseFinishedCallback() { |
| if (mFinishedCallback != null) { |
| mFinishedCallback.release(); |
| mFinishedCallback = null; |
| } |
| } |
| |
| private void sendRunningRemoteAnimation(boolean running) { |
| final int pid = mRemoteAnimationAdapter.getCallingPid(); |
| if (pid == 0) { |
| throw new RuntimeException("Calling pid of remote animation was null"); |
| } |
| mService.sendSetRunningRemoteAnimation(pid, running); |
| } |
| |
| private static final class FinishedCallback extends IRemoteAnimationFinishedCallback.Stub { |
| |
| RemoteAnimationController mOuter; |
| |
| FinishedCallback(RemoteAnimationController outer) { |
| mOuter = outer; |
| } |
| |
| @Override |
| public void onAnimationFinished() throws RemoteException { |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| if (mOuter != null) { |
| mOuter.onAnimationFinished(); |
| |
| // In case the client holds on to the finish callback, make sure we don't leak |
| // RemoteAnimationController which in turn would leak the runner on the client. |
| mOuter = null; |
| } |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| /** |
| * Marks this callback as not be used anymore by releasing the reference to the outer class |
| * to prevent memory leak. |
| */ |
| void release() { |
| mOuter = null; |
| } |
| }; |
| |
| private class RemoteAnimationAdapterWrapper implements AnimationAdapter { |
| |
| private final AppWindowToken mAppWindowToken; |
| private SurfaceControl mCapturedLeash; |
| private OnAnimationFinishedCallback mCapturedFinishCallback; |
| private final Point mPosition = new Point(); |
| private final Rect mStackBounds = new Rect(); |
| private RemoteAnimationTarget mTarget; |
| |
| RemoteAnimationAdapterWrapper(AppWindowToken appWindowToken, Point position, |
| Rect stackBounds) { |
| mAppWindowToken = appWindowToken; |
| mPosition.set(position.x, position.y); |
| mStackBounds.set(stackBounds); |
| } |
| |
| RemoteAnimationTarget createRemoteAppAnimation() { |
| final Task task = mAppWindowToken.getTask(); |
| final WindowState mainWindow = mAppWindowToken.findMainWindow(); |
| if (task == null || mainWindow == null || mCapturedFinishCallback == null |
| || mCapturedLeash == null) { |
| return null; |
| } |
| final Rect insets = new Rect(mainWindow.mContentInsets); |
| InsetUtils.addInsets(insets, mAppWindowToken.getLetterboxInsets()); |
| mTarget = new RemoteAnimationTarget(task.mTaskId, getMode(), |
| mCapturedLeash, !mAppWindowToken.fillsParent(), |
| mainWindow.mWinAnimator.mLastClipRect, insets, |
| mAppWindowToken.getPrefixOrderIndex(), mPosition, mStackBounds, |
| task.getWindowConfiguration(), false /*isNotInRecents*/); |
| return mTarget; |
| } |
| |
| private int getMode() { |
| if (mService.mOpeningApps.contains(mAppWindowToken)) { |
| return RemoteAnimationTarget.MODE_OPENING; |
| } else { |
| return RemoteAnimationTarget.MODE_CLOSING; |
| } |
| } |
| |
| @Override |
| public boolean getDetachWallpaper() { |
| return false; |
| } |
| |
| @Override |
| public boolean getShowWallpaper() { |
| return false; |
| } |
| |
| @Override |
| public int getBackgroundColor() { |
| return 0; |
| } |
| |
| @Override |
| public void startAnimation(SurfaceControl animationLeash, Transaction t, |
| OnAnimationFinishedCallback finishCallback) { |
| |
| // Restore z-layering, position and stack crop until client has a chance to modify it. |
| t.setLayer(animationLeash, mAppWindowToken.getPrefixOrderIndex()); |
| t.setPosition(animationLeash, mPosition.x, mPosition.y); |
| mTmpRect.set(mStackBounds); |
| mTmpRect.offsetTo(0, 0); |
| t.setWindowCrop(animationLeash, mTmpRect); |
| mCapturedLeash = animationLeash; |
| mCapturedFinishCallback = finishCallback; |
| } |
| |
| @Override |
| public void onAnimationCancelled(SurfaceControl animationLeash) { |
| mPendingAnimations.remove(this); |
| if (mPendingAnimations.isEmpty()) { |
| mHandler.removeCallbacks(mTimeoutRunnable); |
| releaseFinishedCallback(); |
| invokeAnimationCancelled(); |
| sendRunningRemoteAnimation(false); |
| } |
| } |
| |
| @Override |
| public long getDurationHint() { |
| return mRemoteAnimationAdapter.getDuration(); |
| } |
| |
| @Override |
| public long getStatusBarTransitionsStartTime() { |
| return SystemClock.uptimeMillis() |
| + mRemoteAnimationAdapter.getStatusBarTransitionDelay(); |
| } |
| |
| @Override |
| public void dump(PrintWriter pw, String prefix) { |
| pw.print(prefix); pw.print("token="); pw.println(mAppWindowToken); |
| if (mTarget != null) { |
| pw.print(prefix); pw.println("Target:"); |
| mTarget.dump(pw, prefix + " "); |
| } else { |
| pw.print(prefix); pw.println("Target: null"); |
| } |
| } |
| |
| @Override |
| public void writeToProto(ProtoOutputStream proto) { |
| final long token = proto.start(REMOTE); |
| if (mTarget != null) { |
| mTarget.writeToProto(proto, TARGET); |
| } |
| proto.end(token); |
| } |
| } |
| } |