| /* |
| * Copyright (C) 2020 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.car.navigationbar; |
| |
| import android.app.ActivityTaskManager; |
| import android.util.Log; |
| |
| import com.android.systemui.shared.system.TaskStackChangeListener; |
| |
| import javax.inject.Inject; |
| import javax.inject.Singleton; |
| |
| /** |
| * An implementation of TaskStackChangeListener, that listens for changes in the system |
| * task stack and notifies the navigation bar. |
| */ |
| @Singleton |
| class ButtonSelectionStateListener extends TaskStackChangeListener { |
| private static final String TAG = ButtonSelectionStateListener.class.getSimpleName(); |
| |
| private final ButtonSelectionStateController mButtonSelectionStateController; |
| |
| @Inject |
| ButtonSelectionStateListener(ButtonSelectionStateController carNavigationButtonController) { |
| mButtonSelectionStateController = carNavigationButtonController; |
| } |
| |
| @Override |
| public void onTaskStackChanged() { |
| try { |
| mButtonSelectionStateController.taskChanged( |
| ActivityTaskManager.getService().getAllStackInfos()); |
| } catch (Exception e) { |
| Log.e(TAG, "Getting StackInfo from activity manager failed", e); |
| } |
| } |
| |
| @Override |
| public void onTaskDisplayChanged(int taskId, int newDisplayId) { |
| try { |
| mButtonSelectionStateController.taskChanged( |
| ActivityTaskManager.getService().getAllStackInfos()); |
| } catch (Exception e) { |
| Log.e(TAG, "Getting StackInfo from activity manager failed", e); |
| } |
| |
| } |
| } |