Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package com.android.car; |
| 17 | |
Sudheer Shanka | a4f49aa | 2016-11-10 16:39:13 -0800 | [diff] [blame] | 18 | import android.app.ActivityManager; |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 19 | import android.app.ActivityManager.StackInfo; |
Yao, Yuxing | cfcc59f | 2019-03-05 16:35:47 -0800 | [diff] [blame] | 20 | import android.app.ActivityOptions; |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 21 | import android.app.IActivityManager; |
| 22 | import android.app.IProcessObserver; |
Yorke Lee | c1265de | 2016-10-27 11:25:25 -0700 | [diff] [blame] | 23 | import android.app.TaskStackListener; |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 24 | import android.content.ComponentName; |
| 25 | import android.content.Context; |
| 26 | import android.content.Intent; |
| 27 | import android.os.Handler; |
| 28 | import android.os.HandlerThread; |
| 29 | import android.os.Looper; |
| 30 | import android.os.Message; |
| 31 | import android.os.RemoteException; |
| 32 | import android.os.UserHandle; |
Yao Chen | ed8609e | 2016-10-07 09:49:13 -0700 | [diff] [blame] | 33 | import android.util.ArrayMap; |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 34 | import android.util.ArraySet; |
| 35 | import android.util.Log; |
| 36 | import android.util.Pair; |
| 37 | import android.util.SparseArray; |
Yao, Yuxing | cfcc59f | 2019-03-05 16:35:47 -0800 | [diff] [blame] | 38 | import android.view.Display; |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 39 | |
| 40 | import java.io.PrintWriter; |
| 41 | import java.util.Arrays; |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 42 | import java.util.LinkedList; |
| 43 | import java.util.List; |
| 44 | import java.util.Map; |
Yao Chen | ed8609e | 2016-10-07 09:49:13 -0700 | [diff] [blame] | 45 | import java.util.Objects; |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 46 | import java.util.Set; |
| 47 | |
| 48 | /** |
| 49 | * Service to monitor AMS for new Activity or Service launching. |
| 50 | */ |
| 51 | public class SystemActivityMonitoringService implements CarServiceBase { |
| 52 | |
| 53 | /** |
| 54 | * Container to hold info on top task in an Activity stack |
| 55 | */ |
| 56 | public static class TopTaskInfoContainer { |
| 57 | public final ComponentName topActivity; |
| 58 | public final int taskId; |
Yao, Yuxing | cfcc59f | 2019-03-05 16:35:47 -0800 | [diff] [blame] | 59 | public final int displayId; |
Yao, Yuxing | 4ddb2c6 | 2019-02-04 11:26:46 -0800 | [diff] [blame^] | 60 | public final int position; |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 61 | public final StackInfo stackInfo; |
| 62 | |
Yao, Yuxing | 4ddb2c6 | 2019-02-04 11:26:46 -0800 | [diff] [blame^] | 63 | private TopTaskInfoContainer(ComponentName topActivity, int taskId, |
| 64 | int displayId, int position, StackInfo stackInfo) { |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 65 | this.topActivity = topActivity; |
| 66 | this.taskId = taskId; |
Yao, Yuxing | cfcc59f | 2019-03-05 16:35:47 -0800 | [diff] [blame] | 67 | this.displayId = displayId; |
Yao, Yuxing | 4ddb2c6 | 2019-02-04 11:26:46 -0800 | [diff] [blame^] | 68 | this.position = position; |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 69 | this.stackInfo = stackInfo; |
| 70 | } |
| 71 | |
Yao Chen | ed8609e | 2016-10-07 09:49:13 -0700 | [diff] [blame] | 72 | public boolean isMatching(TopTaskInfoContainer taskInfo) { |
| 73 | return taskInfo != null |
| 74 | && Objects.equals(this.topActivity, taskInfo.topActivity) |
| 75 | && this.taskId == taskInfo.taskId |
Yao, Yuxing | cfcc59f | 2019-03-05 16:35:47 -0800 | [diff] [blame] | 76 | && this.displayId == taskInfo.displayId |
Yao, Yuxing | 4ddb2c6 | 2019-02-04 11:26:46 -0800 | [diff] [blame^] | 77 | && this.position == taskInfo.position |
Yao Chen | ed8609e | 2016-10-07 09:49:13 -0700 | [diff] [blame] | 78 | && this.stackInfo.userId == taskInfo.stackInfo.userId; |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 79 | } |
| 80 | |
| 81 | @Override |
| 82 | public String toString() { |
| 83 | return String.format( |
Yao, Yuxing | 4ddb2c6 | 2019-02-04 11:26:46 -0800 | [diff] [blame^] | 84 | "TaskInfoContainer [topActivity=%s, taskId=%d, stackId=%d, userId=%d, " |
| 85 | + "displayId=%d, position=%d", |
| 86 | topActivity, taskId, stackInfo.stackId, stackInfo.userId, displayId, position); |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 87 | } |
| 88 | } |
| 89 | |
| 90 | public interface ActivityLaunchListener { |
| 91 | /** |
| 92 | * Notify launch of activity. |
| 93 | * @param topTask Task information for what is currently launched. |
| 94 | */ |
| 95 | void onActivityLaunch(TopTaskInfoContainer topTask); |
| 96 | } |
| 97 | |
Michal Palczewski | 7684dbb | 2018-11-13 18:36:06 -0800 | [diff] [blame] | 98 | private static final int INVALID_STACK_ID = -1; |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 99 | private final Context mContext; |
| 100 | private final IActivityManager mAm; |
| 101 | private final ProcessObserver mProcessObserver; |
| 102 | private final TaskListener mTaskListener; |
| 103 | |
| 104 | private final HandlerThread mMonitorHandlerThread; |
| 105 | private final ActivityMonitorHandler mHandler; |
| 106 | |
| 107 | /** K: stack id, V: top task */ |
| 108 | private final SparseArray<TopTaskInfoContainer> mTopTasks = new SparseArray<>(); |
| 109 | /** K: uid, V : list of pid */ |
Yao Chen | ed8609e | 2016-10-07 09:49:13 -0700 | [diff] [blame] | 110 | private final Map<Integer, Set<Integer>> mForegroundUidPids = new ArrayMap<>(); |
Michal Palczewski | 7684dbb | 2018-11-13 18:36:06 -0800 | [diff] [blame] | 111 | private int mFocusedStackId = INVALID_STACK_ID; |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 112 | |
| 113 | /** |
| 114 | * Temporary container to dispatch tasks for onActivityLaunch. Only used in handler thread. |
| 115 | * can be accessed without lock. */ |
| 116 | private final List<TopTaskInfoContainer> mTasksToDispatch = new LinkedList<>(); |
| 117 | private ActivityLaunchListener mActivityLaunchListener; |
| 118 | |
| 119 | public SystemActivityMonitoringService(Context context) { |
| 120 | mContext = context; |
| 121 | mMonitorHandlerThread = new HandlerThread(CarLog.TAG_AM); |
| 122 | mMonitorHandlerThread.start(); |
| 123 | mHandler = new ActivityMonitorHandler(mMonitorHandlerThread.getLooper()); |
| 124 | mProcessObserver = new ProcessObserver(); |
| 125 | mTaskListener = new TaskListener(); |
Sudheer Shanka | a4f49aa | 2016-11-10 16:39:13 -0800 | [diff] [blame] | 126 | mAm = ActivityManager.getService(); |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 127 | // Monitoring both listeners are necessary as there are cases where one listener cannot |
| 128 | // monitor activity change. |
| 129 | try { |
| 130 | mAm.registerProcessObserver(mProcessObserver); |
| 131 | mAm.registerTaskStackListener(mTaskListener); |
| 132 | } catch (RemoteException e) { |
| 133 | Log.e(CarLog.TAG_AM, "cannot register activity monitoring", e); |
| 134 | throw new RuntimeException(e); |
| 135 | } |
| 136 | updateTasks(); |
| 137 | } |
| 138 | |
| 139 | @Override |
| 140 | public void init() { |
| 141 | } |
| 142 | |
| 143 | @Override |
| 144 | public void release() { |
| 145 | } |
| 146 | |
| 147 | @Override |
| 148 | public void dump(PrintWriter writer) { |
| 149 | writer.println("*SystemActivityMonitoringService*"); |
Yao, Yuxing | 4ddb2c6 | 2019-02-04 11:26:46 -0800 | [diff] [blame^] | 150 | writer.println(" Top Tasks per display:"); |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 151 | synchronized (this) { |
| 152 | for (int i = 0; i < mTopTasks.size(); i++) { |
Yao, Yuxing | 4ddb2c6 | 2019-02-04 11:26:46 -0800 | [diff] [blame^] | 153 | int displayId = mTopTasks.keyAt(i); |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 154 | TopTaskInfoContainer info = mTopTasks.valueAt(i); |
| 155 | if (info != null) { |
Yao, Yuxing | 4ddb2c6 | 2019-02-04 11:26:46 -0800 | [diff] [blame^] | 156 | writer.println("display id " + displayId + ": " + info); |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 157 | } |
| 158 | } |
Yao, Yuxing | 4ddb2c6 | 2019-02-04 11:26:46 -0800 | [diff] [blame^] | 159 | writer.println(" Foreground uid-pids:"); |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 160 | for (Integer key : mForegroundUidPids.keySet()) { |
| 161 | Set<Integer> pids = mForegroundUidPids.get(key); |
| 162 | if (pids == null) { |
| 163 | continue; |
| 164 | } |
| 165 | writer.println("uid:" + key + ", pids:" + Arrays.toString(pids.toArray())); |
| 166 | } |
| 167 | writer.println(" focused stack:" + mFocusedStackId); |
| 168 | } |
| 169 | } |
| 170 | |
| 171 | /** |
| 172 | * Block the current task: Launch new activity with given Intent and finish the current task. |
| 173 | * @param currentTask task to finish |
| 174 | * @param newActivityIntent Intent for new Activity |
| 175 | */ |
| 176 | public void blockActivity(TopTaskInfoContainer currentTask, Intent newActivityIntent) { |
| 177 | mHandler.requestBlockActivity(currentTask, newActivityIntent); |
| 178 | } |
| 179 | |
| 180 | public List<TopTaskInfoContainer> getTopTasks() { |
| 181 | LinkedList<TopTaskInfoContainer> tasks = new LinkedList<>(); |
| 182 | synchronized (this) { |
| 183 | for (int i = 0; i < mTopTasks.size(); i++) { |
| 184 | tasks.add(mTopTasks.valueAt(i)); |
| 185 | } |
| 186 | } |
| 187 | return tasks; |
| 188 | } |
| 189 | |
| 190 | public boolean isInForeground(int pid, int uid) { |
| 191 | synchronized (this) { |
| 192 | Set<Integer> pids = mForegroundUidPids.get(uid); |
| 193 | if (pids == null) { |
| 194 | return false; |
| 195 | } |
| 196 | if (pids.contains(pid)) { |
| 197 | return true; |
| 198 | } |
| 199 | } |
| 200 | return false; |
| 201 | } |
| 202 | |
Yao, Yuxing | d1d6a37 | 2018-05-08 10:37:43 -0700 | [diff] [blame] | 203 | /** |
| 204 | * Attempts to restart a task. |
| 205 | * |
| 206 | * <p>Restarts a task by sending an empty intent with flag |
| 207 | * {@link Intent#FLAG_ACTIVITY_CLEAR_TASK} to its root activity. If the task does not exist, |
| 208 | * do nothing. |
| 209 | * |
| 210 | * @param taskId id of task to be restarted. |
| 211 | */ |
| 212 | public void restartTask(int taskId) { |
| 213 | String rootActivityName = null; |
| 214 | int userId = 0; |
| 215 | try { |
| 216 | findRootActivityName: |
| 217 | for (StackInfo info : mAm.getAllStackInfos()) { |
| 218 | for (int i = 0; i < info.taskIds.length; i++) { |
| 219 | if (info.taskIds[i] == taskId) { |
| 220 | rootActivityName = info.taskNames[i]; |
| 221 | userId = info.userId; |
| 222 | if (Log.isLoggable(CarLog.TAG_AM, Log.DEBUG)) { |
| 223 | Log.d(CarLog.TAG_AM, "Root activity is " + rootActivityName); |
| 224 | Log.d(CarLog.TAG_AM, "User id is " + userId); |
| 225 | } |
| 226 | // Break out of nested loop. |
| 227 | break findRootActivityName; |
| 228 | } |
| 229 | } |
| 230 | } |
| 231 | } catch (RemoteException e) { |
| 232 | Log.e(CarLog.TAG_AM, "Could not get stack info", e); |
| 233 | return; |
| 234 | } |
| 235 | |
| 236 | if (rootActivityName == null) { |
| 237 | Log.e(CarLog.TAG_AM, "Could not find root activity with task id " + taskId); |
| 238 | return; |
| 239 | } |
| 240 | |
| 241 | Intent rootActivityIntent = new Intent(); |
| 242 | rootActivityIntent.setComponent(ComponentName.unflattenFromString(rootActivityName)); |
| 243 | // Clear the task the root activity is running in and start it in a new task. |
| 244 | // Effectively restart root activity. |
| 245 | rootActivityIntent.addFlags( |
| 246 | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK); |
| 247 | |
| 248 | if (Log.isLoggable(CarLog.TAG_AM, Log.INFO)) { |
| 249 | Log.i(CarLog.TAG_AM, "restarting root activity with user id " + userId); |
| 250 | } |
| 251 | mContext.startActivityAsUser(rootActivityIntent, new UserHandle(userId)); |
| 252 | } |
| 253 | |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 254 | public void registerActivityLaunchListener(ActivityLaunchListener listener) { |
| 255 | synchronized (this) { |
| 256 | mActivityLaunchListener = listener; |
| 257 | } |
| 258 | } |
| 259 | |
| 260 | private void updateTasks() { |
| 261 | List<StackInfo> infos; |
| 262 | try { |
| 263 | infos = mAm.getAllStackInfos(); |
| 264 | } catch (RemoteException e) { |
| 265 | Log.e(CarLog.TAG_AM, "cannot getTasks", e); |
| 266 | return; |
| 267 | } |
Michal Palczewski | 7684dbb | 2018-11-13 18:36:06 -0800 | [diff] [blame] | 268 | int focusedStackId = INVALID_STACK_ID; |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 269 | try { |
Wale Ogunwale | 9a000b9 | 2017-09-26 11:05:02 -0700 | [diff] [blame] | 270 | // TODO(b/66955160): Someone on the Auto-team should probably re-work the code in the |
| 271 | // synchronized block below based on this new API. |
| 272 | final StackInfo focusedStackInfo = mAm.getFocusedStackInfo(); |
| 273 | if (focusedStackInfo != null) { |
| 274 | focusedStackId = focusedStackInfo.stackId; |
| 275 | } |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 276 | } catch (RemoteException e) { |
| 277 | Log.e(CarLog.TAG_AM, "cannot getFocusedStackId", e); |
| 278 | return; |
| 279 | } |
| 280 | mTasksToDispatch.clear(); |
Yao, Yuxing | 4ddb2c6 | 2019-02-04 11:26:46 -0800 | [diff] [blame^] | 281 | |
| 282 | SparseArray<TopTaskInfoContainer> topTasks = new SparseArray<>(); |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 283 | ActivityLaunchListener listener; |
| 284 | synchronized (this) { |
| 285 | listener = mActivityLaunchListener; |
| 286 | for (StackInfo info : infos) { |
Yao, Yuxing | 4ddb2c6 | 2019-02-04 11:26:46 -0800 | [diff] [blame^] | 287 | int displayId = info.displayId; |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 288 | if (info.taskNames.length == 0 || !info.visible) { // empty stack or not shown |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 289 | continue; |
| 290 | } |
Yao Chen | ed8609e | 2016-10-07 09:49:13 -0700 | [diff] [blame] | 291 | TopTaskInfoContainer newTopTaskInfo = new TopTaskInfoContainer( |
Yao, Yuxing | 4ddb2c6 | 2019-02-04 11:26:46 -0800 | [diff] [blame^] | 292 | info.topActivity, info.taskIds[info.taskIds.length - 1], |
| 293 | info.displayId, info.position, info); |
| 294 | TopTaskInfoContainer currentTopTaskInfo = topTasks.get(displayId); |
Yao Chen | ed8609e | 2016-10-07 09:49:13 -0700 | [diff] [blame] | 295 | |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 296 | if (currentTopTaskInfo == null || |
Yao, Yuxing | 4ddb2c6 | 2019-02-04 11:26:46 -0800 | [diff] [blame^] | 297 | newTopTaskInfo.position > currentTopTaskInfo.position) { |
| 298 | topTasks.put(displayId, newTopTaskInfo); |
Yao, Yuxing | d1d6a37 | 2018-05-08 10:37:43 -0700 | [diff] [blame] | 299 | if (Log.isLoggable(CarLog.TAG_AM, Log.INFO)) { |
Yao, Yuxing | 4ddb2c6 | 2019-02-04 11:26:46 -0800 | [diff] [blame^] | 300 | Log.i(CarLog.TAG_AM, "Current top task " + newTopTaskInfo); |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 301 | } |
| 302 | } |
| 303 | } |
Yao, Yuxing | 4ddb2c6 | 2019-02-04 11:26:46 -0800 | [diff] [blame^] | 304 | // Assuming displays remains the same. |
| 305 | for (int i = 0; i < topTasks.size(); i++) { |
| 306 | int displayId = topTasks.keyAt(i); |
| 307 | TopTaskInfoContainer current = topTasks.get(displayId); |
| 308 | TopTaskInfoContainer previous = mTopTasks.get(displayId); |
| 309 | if (!current.isMatching(previous)) { |
| 310 | mTasksToDispatch.add(current); |
| 311 | mTopTasks.put(displayId, current); |
Michal Palczewski | 7684dbb | 2018-11-13 18:36:06 -0800 | [diff] [blame] | 312 | } |
| 313 | } |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 314 | } |
| 315 | if (listener != null) { |
| 316 | for (TopTaskInfoContainer topTask : mTasksToDispatch) { |
Yao, Yuxing | d1d6a37 | 2018-05-08 10:37:43 -0700 | [diff] [blame] | 317 | if (Log.isLoggable(CarLog.TAG_AM, Log.INFO)) { |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 318 | Log.i(CarLog.TAG_AM, "activity launched:" + topTask.toString()); |
| 319 | } |
| 320 | listener.onActivityLaunch(topTask); |
| 321 | } |
| 322 | } |
| 323 | } |
| 324 | |
| 325 | public StackInfo getFocusedStackForTopActivity(ComponentName activity) { |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 326 | StackInfo focusedStack; |
| 327 | try { |
Wale Ogunwale | 9a000b9 | 2017-09-26 11:05:02 -0700 | [diff] [blame] | 328 | focusedStack = mAm.getFocusedStackInfo(); |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 329 | } catch (RemoteException e) { |
| 330 | Log.e(CarLog.TAG_AM, "cannot getFocusedStackId", e); |
| 331 | return null; |
| 332 | } |
| 333 | if (focusedStack.taskNames.length == 0) { // nothing in focused stack |
| 334 | return null; |
| 335 | } |
| 336 | ComponentName topActivity = ComponentName.unflattenFromString( |
| 337 | focusedStack.taskNames[focusedStack.taskNames.length - 1]); |
| 338 | if (topActivity.equals(activity)) { |
| 339 | return focusedStack; |
| 340 | } else { |
| 341 | return null; |
| 342 | } |
| 343 | } |
| 344 | |
| 345 | private void handleForegroundActivitiesChanged(int pid, int uid, boolean foregroundActivities) { |
| 346 | synchronized (this) { |
| 347 | if (foregroundActivities) { |
| 348 | Set<Integer> pids = mForegroundUidPids.get(uid); |
| 349 | if (pids == null) { |
| 350 | pids = new ArraySet<Integer>(); |
| 351 | mForegroundUidPids.put(uid, pids); |
| 352 | } |
| 353 | pids.add(pid); |
| 354 | } else { |
| 355 | doHandlePidGoneLocked(pid, uid); |
| 356 | } |
| 357 | } |
| 358 | } |
| 359 | |
| 360 | private void handleProcessDied(int pid, int uid) { |
| 361 | synchronized (this) { |
| 362 | doHandlePidGoneLocked(pid, uid); |
| 363 | } |
| 364 | } |
| 365 | |
| 366 | private void doHandlePidGoneLocked(int pid, int uid) { |
| 367 | Set<Integer> pids = mForegroundUidPids.get(uid); |
| 368 | if (pids != null) { |
| 369 | pids.remove(pid); |
| 370 | if (pids.isEmpty()) { |
| 371 | mForegroundUidPids.remove(uid); |
| 372 | } |
| 373 | } |
| 374 | } |
| 375 | |
Ram Periathiruvadi | ffcdb84 | 2018-04-16 17:17:39 -0700 | [diff] [blame] | 376 | /** |
| 377 | * block the current task with the provided new activity. |
| 378 | */ |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 379 | private void handleBlockActivity(TopTaskInfoContainer currentTask, Intent newActivityIntent) { |
Yao, Yuxing | cfcc59f | 2019-03-05 16:35:47 -0800 | [diff] [blame] | 380 | // Only block default display. |
| 381 | ActivityOptions options = ActivityOptions.makeBasic(); |
| 382 | options.setLaunchDisplayId(Display.DEFAULT_DISPLAY); |
| 383 | |
| 384 | mContext.startActivityAsUser(newActivityIntent, options.toBundle(), |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 385 | new UserHandle(currentTask.stackInfo.userId)); |
Yao, Yuxing | d1d6a37 | 2018-05-08 10:37:43 -0700 | [diff] [blame] | 386 | // Now make stack with new activity focused. |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 387 | findTaskAndGrantFocus(newActivityIntent.getComponent()); |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 388 | } |
| 389 | |
| 390 | private void findTaskAndGrantFocus(ComponentName activity) { |
| 391 | List<StackInfo> infos; |
| 392 | try { |
| 393 | infos = mAm.getAllStackInfos(); |
| 394 | } catch (RemoteException e) { |
| 395 | Log.e(CarLog.TAG_AM, "cannot getTasks", e); |
| 396 | return; |
| 397 | } |
| 398 | for (StackInfo info : infos) { |
| 399 | if (info.taskNames.length == 0) { |
| 400 | continue; |
| 401 | } |
| 402 | ComponentName topActivity = ComponentName.unflattenFromString( |
| 403 | info.taskNames[info.taskNames.length - 1]); |
| 404 | if (activity.equals(topActivity)) { |
| 405 | try { |
| 406 | mAm.setFocusedStack(info.stackId); |
| 407 | } catch (RemoteException e) { |
| 408 | Log.e(CarLog.TAG_AM, "cannot setFocusedStack to stack:" + info.stackId, e); |
| 409 | } |
| 410 | return; |
| 411 | } |
| 412 | } |
| 413 | Log.i(CarLog.TAG_AM, "cannot give focus, cannot find Activity:" + activity); |
| 414 | } |
| 415 | |
| 416 | private class ProcessObserver extends IProcessObserver.Stub { |
| 417 | @Override |
| 418 | public void onForegroundActivitiesChanged(int pid, int uid, boolean foregroundActivities) { |
Yao, Yuxing | d1d6a37 | 2018-05-08 10:37:43 -0700 | [diff] [blame] | 419 | if (Log.isLoggable(CarLog.TAG_AM, Log.INFO)) { |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 420 | Log.i(CarLog.TAG_AM, |
| 421 | String.format("onForegroundActivitiesChanged uid %d pid %d fg %b", |
| 422 | uid, pid, foregroundActivities)); |
| 423 | } |
| 424 | mHandler.requestForegroundActivitiesChanged(pid, uid, foregroundActivities); |
| 425 | } |
| 426 | |
| 427 | @Override |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 428 | public void onProcessDied(int pid, int uid) { |
| 429 | mHandler.requestProcessDied(pid, uid); |
| 430 | } |
| 431 | } |
| 432 | |
Yorke Lee | c1265de | 2016-10-27 11:25:25 -0700 | [diff] [blame] | 433 | private class TaskListener extends TaskStackListener { |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 434 | @Override |
| 435 | public void onTaskStackChanged() { |
Yao, Yuxing | d1d6a37 | 2018-05-08 10:37:43 -0700 | [diff] [blame] | 436 | if (Log.isLoggable(CarLog.TAG_AM, Log.INFO)) { |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 437 | Log.i(CarLog.TAG_AM, "onTaskStackChanged"); |
| 438 | } |
| 439 | mHandler.requestUpdatingTask(); |
| 440 | } |
Keun-young Park | 4727da3 | 2016-05-31 10:00:51 -0700 | [diff] [blame] | 441 | } |
| 442 | |
| 443 | private class ActivityMonitorHandler extends Handler { |
| 444 | private static final int MSG_UPDATE_TASKS = 0; |
| 445 | private static final int MSG_FOREGROUND_ACTIVITIES_CHANGED = 1; |
| 446 | private static final int MSG_PROCESS_DIED = 2; |
| 447 | private static final int MSG_BLOCK_ACTIVITY = 3; |
| 448 | |
| 449 | private ActivityMonitorHandler(Looper looper) { |
| 450 | super(looper); |
| 451 | } |
| 452 | |
| 453 | private void requestUpdatingTask() { |
| 454 | Message msg = obtainMessage(MSG_UPDATE_TASKS); |
| 455 | sendMessage(msg); |
| 456 | } |
| 457 | |
| 458 | private void requestForegroundActivitiesChanged(int pid, int uid, |
| 459 | boolean foregroundActivities) { |
| 460 | Message msg = obtainMessage(MSG_FOREGROUND_ACTIVITIES_CHANGED, pid, uid, |
| 461 | Boolean.valueOf(foregroundActivities)); |
| 462 | sendMessage(msg); |
| 463 | } |
| 464 | |
| 465 | private void requestProcessDied(int pid, int uid) { |
| 466 | Message msg = obtainMessage(MSG_PROCESS_DIED, pid, uid); |
| 467 | sendMessage(msg); |
| 468 | } |
| 469 | |
| 470 | private void requestBlockActivity(TopTaskInfoContainer currentTask, |
| 471 | Intent newActivityIntent) { |
| 472 | Message msg = obtainMessage(MSG_BLOCK_ACTIVITY, |
| 473 | new Pair<TopTaskInfoContainer, Intent>(currentTask, newActivityIntent)); |
| 474 | sendMessage(msg); |
| 475 | } |
| 476 | |
| 477 | @Override |
| 478 | public void handleMessage(Message msg) { |
| 479 | switch (msg.what) { |
| 480 | case MSG_UPDATE_TASKS: |
| 481 | updateTasks(); |
| 482 | break; |
| 483 | case MSG_FOREGROUND_ACTIVITIES_CHANGED: |
| 484 | handleForegroundActivitiesChanged(msg.arg1, msg.arg2, (Boolean) msg.obj); |
| 485 | updateTasks(); |
| 486 | break; |
| 487 | case MSG_PROCESS_DIED: |
| 488 | handleProcessDied(msg.arg1, msg.arg2); |
| 489 | break; |
| 490 | case MSG_BLOCK_ACTIVITY: |
| 491 | Pair<TopTaskInfoContainer, Intent> pair = |
| 492 | (Pair<TopTaskInfoContainer, Intent>) msg.obj; |
| 493 | handleBlockActivity(pair.first, pair.second); |
| 494 | break; |
| 495 | } |
| 496 | } |
| 497 | } |
| 498 | } |