| /* |
| * Copyright (C) 2019 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.statusbar.policy; |
| |
| import android.hardware.SensorPrivacyManager; |
| |
| import androidx.annotation.NonNull; |
| |
| import com.android.systemui.dagger.SysUISingleton; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * Controls sensor privacy state and notification. |
| */ |
| @SysUISingleton |
| public class SensorPrivacyControllerImpl implements |
| SensorPrivacyController, |
| SensorPrivacyManager.OnAllSensorPrivacyChangedListener { |
| private SensorPrivacyManager mSensorPrivacyManager; |
| private final List<OnSensorPrivacyChangedListener> mListeners = new ArrayList<>(1); |
| private Object mLock = new Object(); |
| private boolean mSensorPrivacyEnabled; |
| |
| /** |
| * Public constructor. |
| */ |
| public SensorPrivacyControllerImpl(@NonNull SensorPrivacyManager sensorPrivacyManager) { |
| mSensorPrivacyManager = sensorPrivacyManager; |
| } |
| |
| @Override |
| public void init() { |
| mSensorPrivacyEnabled = mSensorPrivacyManager.isAllSensorPrivacyEnabled(); |
| mSensorPrivacyManager.addAllSensorPrivacyListener(this); |
| } |
| |
| /** |
| * Returns whether sensor privacy is enabled. |
| */ |
| public boolean isSensorPrivacyEnabled() { |
| synchronized (mLock) { |
| return mSensorPrivacyEnabled; |
| } |
| } |
| |
| /** |
| * Adds the provided listener for callbacks when sensor privacy state changes. |
| */ |
| public void addCallback(@NonNull OnSensorPrivacyChangedListener listener) { |
| synchronized (mLock) { |
| mListeners.add(listener); |
| notifyListenerLocked(listener); |
| } |
| } |
| |
| /** |
| * Removes the provided listener from callbacks when sensor privacy state changes. |
| */ |
| public void removeCallback(@NonNull OnSensorPrivacyChangedListener listener) { |
| synchronized (mLock) { |
| mListeners.remove(listener); |
| } |
| } |
| |
| /** |
| * Callback invoked by the SensorPrivacyService when sensor privacy state changes. |
| */ |
| public void onAllSensorPrivacyChanged(boolean enabled) { |
| synchronized (mLock) { |
| mSensorPrivacyEnabled = enabled; |
| for (OnSensorPrivacyChangedListener listener : mListeners) { |
| notifyListenerLocked(listener); |
| } |
| } |
| } |
| |
| private void notifyListenerLocked(OnSensorPrivacyChangedListener listener) { |
| listener.onSensorPrivacyChanged(mSensorPrivacyEnabled); |
| } |
| } |