| /* |
| * Copyright (C) 2017 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.systemui.recents.misc; |
| |
| import android.app.ActivityManager.TaskSnapshot; |
| import android.content.Context; |
| import android.os.UserHandle; |
| import android.util.Log; |
| |
| /** |
| * An abstract class to track task stack changes. |
| * Classes should implement this instead of {@link android.app.ITaskStackListener} |
| * to reduce IPC calls from system services. These callbacks will be called on the main thread. |
| */ |
| public abstract class TaskStackChangeListener { |
| |
| /** |
| * NOTE: This call is made of the thread that the binder call comes in on. |
| */ |
| public void onTaskStackChangedBackground() { } |
| public void onTaskStackChanged() { } |
| public void onTaskSnapshotChanged(int taskId, TaskSnapshot snapshot) { } |
| public void onActivityPinned(String packageName, int userId, int taskId, int stackId) { } |
| public void onActivityUnpinned() { } |
| public void onPinnedActivityRestartAttempt(boolean clearedTask) { } |
| public void onPinnedStackAnimationStarted() { } |
| public void onPinnedStackAnimationEnded() { } |
| public void onActivityForcedResizable(String packageName, int taskId, int reason) { } |
| public void onActivityDismissingDockedStack() { } |
| public void onActivityLaunchOnSecondaryDisplayFailed() { } |
| public void onTaskProfileLocked(int taskId, int userId) { } |
| |
| /** |
| * Checks that the current user matches the user's SystemUI process. Since |
| * {@link android.app.ITaskStackListener} is not multi-user aware, handlers of |
| * TaskStackChangeListener should make this call to verify that we don't act on events from other |
| * user's processes. |
| */ |
| protected final boolean checkCurrentUserId(Context context, boolean debug) { |
| int processUserId = UserHandle.myUserId(); |
| int currentUserId = SystemServicesProxy.getInstance(context).getCurrentUser(); |
| if (processUserId != currentUserId) { |
| if (debug) { |
| Log.d(SystemServicesProxy.TAG, "UID mismatch. SystemUI is running uid=" + processUserId |
| + " and the current user is uid=" + currentUserId); |
| } |
| return false; |
| } |
| return true; |
| } |
| } |