| /* |
| * Copyright (C) 2021 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.wm.shell.transition; |
| |
| import android.annotation.NonNull; |
| import android.os.RemoteException; |
| import android.view.IRemoteAnimationFinishedCallback; |
| import android.view.IRemoteAnimationRunner; |
| import android.view.RemoteAnimationAdapter; |
| import android.view.RemoteAnimationTarget; |
| import android.view.SurfaceControl; |
| import android.view.WindowManager; |
| import android.window.IWindowContainerTransactionCallback; |
| |
| /** |
| * Utilities and interfaces for transition-like usage on top of the legacy app-transition and |
| * synctransaction tools. |
| */ |
| public class LegacyTransitions { |
| |
| /** |
| * Interface for a "legacy" transition. Effectively wraps a sync callback + remoteAnimation |
| * into one callback. |
| */ |
| public interface ILegacyTransition { |
| /** |
| * Called when both the associated sync transaction finishes and the remote animation is |
| * ready. |
| */ |
| void onAnimationStart(int transit, RemoteAnimationTarget[] apps, |
| RemoteAnimationTarget[] wallpapers, RemoteAnimationTarget[] nonApps, |
| IRemoteAnimationFinishedCallback finishedCallback, SurfaceControl.Transaction t); |
| } |
| |
| /** |
| * Makes sure that a remote animation and corresponding sync callback are called together |
| * such that the sync callback is called first. This assumes that both the callback receiver |
| * and the remoteanimation are in the same process so that order is preserved on both ends. |
| */ |
| public static class LegacyTransition { |
| private final ILegacyTransition mLegacyTransition; |
| private int mSyncId = -1; |
| private SurfaceControl.Transaction mTransaction; |
| private int mTransit; |
| private RemoteAnimationTarget[] mApps; |
| private RemoteAnimationTarget[] mWallpapers; |
| private RemoteAnimationTarget[] mNonApps; |
| private IRemoteAnimationFinishedCallback mFinishCallback = null; |
| private boolean mCancelled = false; |
| private final SyncCallback mSyncCallback = new SyncCallback(); |
| private final RemoteAnimationAdapter mAdapter = |
| new RemoteAnimationAdapter(new RemoteAnimationWrapper(), 0, 0); |
| |
| public LegacyTransition(@WindowManager.TransitionType int type, |
| @NonNull ILegacyTransition legacyTransition) { |
| mLegacyTransition = legacyTransition; |
| mTransit = type; |
| } |
| |
| public @WindowManager.TransitionType int getType() { |
| return mTransit; |
| } |
| |
| public IWindowContainerTransactionCallback getSyncCallback() { |
| return mSyncCallback; |
| } |
| |
| public RemoteAnimationAdapter getAdapter() { |
| return mAdapter; |
| } |
| |
| private class SyncCallback extends IWindowContainerTransactionCallback.Stub { |
| @Override |
| public void onTransactionReady(int id, SurfaceControl.Transaction t) |
| throws RemoteException { |
| mSyncId = id; |
| mTransaction = t; |
| checkApply(); |
| } |
| } |
| |
| private class RemoteAnimationWrapper extends IRemoteAnimationRunner.Stub { |
| @Override |
| public void onAnimationStart(int transit, RemoteAnimationTarget[] apps, |
| RemoteAnimationTarget[] wallpapers, RemoteAnimationTarget[] nonApps, |
| IRemoteAnimationFinishedCallback finishedCallback) throws RemoteException { |
| mTransit = transit; |
| mApps = apps; |
| mWallpapers = wallpapers; |
| mNonApps = nonApps; |
| mFinishCallback = finishedCallback; |
| checkApply(); |
| } |
| |
| @Override |
| public void onAnimationCancelled() throws RemoteException { |
| mCancelled = true; |
| mApps = mWallpapers = mNonApps = null; |
| checkApply(); |
| } |
| } |
| |
| |
| private void checkApply() throws RemoteException { |
| if (mSyncId < 0 || (mFinishCallback == null && !mCancelled)) return; |
| mLegacyTransition.onAnimationStart(mTransit, mApps, mWallpapers, |
| mNonApps, mFinishCallback, mTransaction); |
| } |
| } |
| } |