Robert Carr | 8a2f913 | 2019-11-11 15:03:15 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2019 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 | |
| 17 | package com.android.server.wm; |
| 18 | |
| 19 | import static android.app.WindowConfiguration.WINDOWING_MODE_PINNED; |
Robert Carr | 00c0dbe | 2020-01-24 15:30:24 -0800 | [diff] [blame^] | 20 | import static android.app.WindowConfiguration.WINDOWING_MODE_MULTI_WINDOW; |
Robert Carr | 8a2f913 | 2019-11-11 15:03:15 -0800 | [diff] [blame] | 21 | |
| 22 | import android.os.IBinder; |
| 23 | import android.os.RemoteException; |
| 24 | import android.util.Slog; |
| 25 | import android.view.ITaskOrganizer; |
| 26 | import android.view.SurfaceControl; |
| 27 | |
| 28 | import java.util.ArrayList; |
| 29 | import java.util.HashMap; |
| 30 | |
| 31 | /** |
| 32 | * Stores the TaskOrganizers associated with a given windowing mode and |
| 33 | * their associated state. |
| 34 | */ |
| 35 | class TaskOrganizerController { |
| 36 | private static final String TAG = "TaskOrganizerController"; |
| 37 | |
| 38 | private WindowManagerGlobalLock mGlobalLock; |
| 39 | |
| 40 | private class DeathRecipient implements IBinder.DeathRecipient { |
| 41 | int mWindowingMode; |
| 42 | ITaskOrganizer mTaskOrganizer; |
| 43 | |
| 44 | DeathRecipient(ITaskOrganizer organizer, int windowingMode) { |
| 45 | mTaskOrganizer = organizer; |
| 46 | mWindowingMode = windowingMode; |
| 47 | } |
| 48 | |
| 49 | @Override |
| 50 | public void binderDied() { |
| 51 | synchronized (mGlobalLock) { |
| 52 | final TaskOrganizerState state = mTaskOrganizerStates.get(mTaskOrganizer); |
| 53 | for (int i = 0; i < state.mOrganizedTasks.size(); i++) { |
| 54 | state.mOrganizedTasks.get(i).taskOrganizerDied(); |
| 55 | } |
| 56 | mTaskOrganizerStates.remove(mTaskOrganizer); |
| 57 | if (mTaskOrganizersForWindowingMode.get(mWindowingMode) == mTaskOrganizer) { |
| 58 | mTaskOrganizersForWindowingMode.remove(mWindowingMode); |
| 59 | } |
| 60 | } |
| 61 | } |
| 62 | }; |
| 63 | |
| 64 | class TaskOrganizerState { |
| 65 | ITaskOrganizer mOrganizer; |
| 66 | DeathRecipient mDeathRecipient; |
| 67 | |
| 68 | ArrayList<Task> mOrganizedTasks = new ArrayList<>(); |
| 69 | |
| 70 | void addTask(Task t) { |
| 71 | mOrganizedTasks.add(t); |
| 72 | } |
| 73 | |
| 74 | void removeTask(Task t) { |
| 75 | mOrganizedTasks.remove(t); |
| 76 | } |
| 77 | |
| 78 | TaskOrganizerState(ITaskOrganizer organizer, DeathRecipient deathRecipient) { |
| 79 | mOrganizer = organizer; |
| 80 | mDeathRecipient = deathRecipient; |
| 81 | } |
| 82 | }; |
| 83 | |
| 84 | |
| 85 | final HashMap<Integer, TaskOrganizerState> mTaskOrganizersForWindowingMode = new HashMap(); |
| 86 | final HashMap<ITaskOrganizer, TaskOrganizerState> mTaskOrganizerStates = new HashMap(); |
| 87 | |
| 88 | final HashMap<Integer, ITaskOrganizer> mTaskOrganizersByPendingSyncId = new HashMap(); |
| 89 | |
| 90 | final ActivityTaskManagerService mService; |
| 91 | |
| 92 | TaskOrganizerController(ActivityTaskManagerService atm, WindowManagerGlobalLock lock) { |
| 93 | mService = atm; |
| 94 | mGlobalLock = lock; |
| 95 | } |
| 96 | |
| 97 | private void clearIfNeeded(int windowingMode) { |
| 98 | final TaskOrganizerState oldState = mTaskOrganizersForWindowingMode.get(windowingMode); |
| 99 | if (oldState != null) { |
| 100 | oldState.mOrganizer.asBinder().unlinkToDeath(oldState.mDeathRecipient, 0); |
| 101 | } |
| 102 | } |
| 103 | |
| 104 | /** |
| 105 | * Register a TaskOrganizer to manage tasks as they enter the given windowing mode. |
| 106 | * If there was already a TaskOrganizer for this windowing mode it will be evicted |
| 107 | * and receive taskVanished callbacks in the process. |
| 108 | */ |
| 109 | void registerTaskOrganizer(ITaskOrganizer organizer, int windowingMode) { |
Robert Carr | 00c0dbe | 2020-01-24 15:30:24 -0800 | [diff] [blame^] | 110 | if (windowingMode != WINDOWING_MODE_PINNED && |
| 111 | windowingMode != WINDOWING_MODE_MULTI_WINDOW) { |
Robert Carr | 8a2f913 | 2019-11-11 15:03:15 -0800 | [diff] [blame] | 112 | throw new UnsupportedOperationException( |
Robert Carr | 00c0dbe | 2020-01-24 15:30:24 -0800 | [diff] [blame^] | 113 | "As of now only Pinned and Multiwindow windowing modes are" |
| 114 | + " supported for registerTaskOrganizer"); |
Robert Carr | 8a2f913 | 2019-11-11 15:03:15 -0800 | [diff] [blame] | 115 | |
| 116 | } |
| 117 | clearIfNeeded(windowingMode); |
| 118 | DeathRecipient dr = new DeathRecipient(organizer, windowingMode); |
| 119 | try { |
| 120 | organizer.asBinder().linkToDeath(dr, 0); |
| 121 | } catch (RemoteException e) { |
| 122 | Slog.e(TAG, "TaskOrganizer failed to register death recipient"); |
| 123 | } |
| 124 | |
| 125 | final TaskOrganizerState state = new TaskOrganizerState(organizer, dr); |
| 126 | mTaskOrganizersForWindowingMode.put(windowingMode, state); |
| 127 | |
| 128 | mTaskOrganizerStates.put(organizer, state); |
| 129 | } |
| 130 | |
| 131 | ITaskOrganizer getTaskOrganizer(int windowingMode) { |
| 132 | final TaskOrganizerState state = mTaskOrganizersForWindowingMode.get(windowingMode); |
| 133 | if (state == null) { |
| 134 | return null; |
| 135 | } |
| 136 | return state.mOrganizer; |
| 137 | } |
| 138 | |
| 139 | private void sendTaskAppeared(ITaskOrganizer organizer, Task task) { |
| 140 | try { |
| 141 | organizer.taskAppeared(task.getRemoteToken(), task.getTaskInfo()); |
| 142 | } catch (Exception e) { |
| 143 | Slog.e(TAG, "Exception sending taskAppeared callback" + e); |
| 144 | } |
| 145 | } |
| 146 | |
| 147 | private void sendTaskVanished(ITaskOrganizer organizer, Task task) { |
| 148 | try { |
| 149 | organizer.taskVanished(task.getRemoteToken()); |
| 150 | } catch (Exception e) { |
| 151 | Slog.e(TAG, "Exception sending taskVanished callback" + e); |
| 152 | } |
| 153 | } |
| 154 | |
| 155 | void onTaskAppeared(ITaskOrganizer organizer, Task task) { |
| 156 | TaskOrganizerState state = mTaskOrganizerStates.get(organizer); |
| 157 | |
| 158 | state.addTask(task); |
| 159 | sendTaskAppeared(organizer, task); |
| 160 | } |
| 161 | |
| 162 | void onTaskVanished(ITaskOrganizer organizer, Task task) { |
| 163 | final TaskOrganizerState state = mTaskOrganizerStates.get(organizer); |
| 164 | sendTaskVanished(organizer, task); |
| 165 | |
| 166 | // This could trigger TaskAppeared for other tasks in the same stack so make sure |
| 167 | // we do this AFTER sending taskVanished. |
| 168 | state.removeTask(task); |
| 169 | } |
| 170 | } |