| /* |
| * Copyright (C) 2022 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.app; |
| |
| import static android.view.Display.INVALID_DISPLAY; |
| |
| import android.annotation.NonNull; |
| import android.annotation.Nullable; |
| import android.app.ActivityManager.RunningTaskInfo; |
| import android.app.IActivityTaskManager; |
| import android.content.ComponentName; |
| import android.os.RemoteException; |
| import android.os.UserHandle; |
| import android.util.LruCache; |
| import android.util.Slog; |
| |
| import com.android.internal.annotations.GuardedBy; |
| |
| import java.util.List; |
| |
| final class GameTaskInfoProvider { |
| private static final String TAG = "GameTaskInfoProvider"; |
| private static final int TASK_INFO_CACHE_MAX_SIZE = 50; |
| |
| private final Object mLock = new Object(); |
| |
| @GuardedBy("mLock") |
| private final LruCache<Integer, GameTaskInfo> mGameTaskInfoCache = new LruCache<>( |
| TASK_INFO_CACHE_MAX_SIZE); |
| |
| private final UserHandle mUserHandle; |
| private final IActivityTaskManager mActivityTaskManager; |
| private final GameClassifier mGameClassifier; |
| |
| GameTaskInfoProvider(@NonNull UserHandle userHandle, |
| @NonNull IActivityTaskManager activityTaskManager, |
| @NonNull GameClassifier gameClassifier) { |
| mUserHandle = userHandle; |
| mActivityTaskManager = activityTaskManager; |
| mGameClassifier = gameClassifier; |
| } |
| |
| @Nullable |
| GameTaskInfo get(int taskId) { |
| synchronized (mLock) { |
| final GameTaskInfo cachedTaskInfo = mGameTaskInfoCache.get(taskId); |
| if (cachedTaskInfo != null) { |
| return cachedTaskInfo; |
| } |
| } |
| |
| final RunningTaskInfo runningTaskInfo = getRunningTaskInfo(taskId); |
| if (runningTaskInfo == null || runningTaskInfo.baseActivity == null) { |
| return null; |
| } |
| |
| return generateGameInfo(taskId, runningTaskInfo.baseActivity); |
| } |
| |
| GameTaskInfo get(int taskId, @NonNull ComponentName componentName) { |
| synchronized (mLock) { |
| final GameTaskInfo cachedTaskInfo = mGameTaskInfoCache.get(taskId); |
| if (cachedTaskInfo != null) { |
| if (cachedTaskInfo.mComponentName.equals(componentName)) { |
| Slog.w(TAG, "Found cached task info for taskId " + taskId |
| + " but cached component name " + cachedTaskInfo.mComponentName |
| + " does not match " + componentName); |
| } else { |
| return cachedTaskInfo; |
| } |
| } |
| } |
| |
| return generateGameInfo(taskId, componentName); |
| } |
| |
| @Nullable |
| RunningTaskInfo getRunningTaskInfo(int taskId) { |
| List<RunningTaskInfo> runningTaskInfos; |
| try { |
| runningTaskInfos = mActivityTaskManager.getTasks( |
| /* maxNum= */ Integer.MAX_VALUE, |
| /* filterOnlyVisibleRecents= */ false, |
| /* keepIntentExtra= */ false, |
| INVALID_DISPLAY); |
| } catch (RemoteException ex) { |
| Slog.w(TAG, "Failed to fetch running tasks"); |
| return null; |
| } |
| |
| for (RunningTaskInfo taskInfo : runningTaskInfos) { |
| if (taskInfo.taskId == taskId) { |
| return taskInfo; |
| } |
| } |
| |
| return null; |
| } |
| |
| private GameTaskInfo generateGameInfo(int taskId, @NonNull ComponentName componentName) { |
| final GameTaskInfo gameTaskInfo = new GameTaskInfo(taskId, |
| mGameClassifier.isGame(componentName.getPackageName(), mUserHandle), componentName); |
| |
| synchronized (mLock) { |
| mGameTaskInfoCache.put(taskId, gameTaskInfo); |
| } |
| |
| return gameTaskInfo; |
| } |
| } |