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/*
* 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;
}
}
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