| /* |
| * Copyright (C) 2018 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.power; |
| |
| import static android.content.Context.VIBRATOR_SERVICE; |
| |
| import static com.android.internal.util.function.pooled.PooledLambda.obtainMessage; |
| |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.media.AudioAttributes; |
| import android.net.Uri; |
| import android.os.Handler; |
| import android.os.VibrationEffect; |
| import android.os.Vibrator; |
| |
| import com.android.internal.annotations.VisibleForTesting; |
| import com.android.systemui.R; |
| import com.android.systemui.media.NotificationPlayer; |
| |
| /** |
| * A Controller handle beep sound, vibration and TTS depend on state of OverheatAlarmDialog. |
| */ |
| public class OverheatAlarmController { |
| private static final String TAG = OverheatAlarmController.class.getSimpleName(); |
| |
| private static final int VIBRATION_INTERVAL = 2000; |
| private static final long[] VIBRATION_PATTERN = new long[]{0, 400, 200, 400, 200, 400, 200}; |
| |
| private static OverheatAlarmController sInstance; |
| |
| private final Vibrator mVibrator; |
| |
| private NotificationPlayer mPlayer; |
| private VibrationEffect mVibrationEffect; |
| |
| private boolean mShouldVibrate; |
| |
| /** |
| * The constructor only used to create singleton sInstance. |
| */ |
| private OverheatAlarmController(Context context) { |
| mVibrator = (Vibrator) context.getSystemService(VIBRATOR_SERVICE); |
| } |
| |
| /** |
| * Get singleton OverheatAlarmController instance. |
| */ |
| public static OverheatAlarmController getInstance(Context context) { |
| if (context == null) { |
| throw new IllegalArgumentException(); |
| } |
| if (sInstance == null) { |
| sInstance = new OverheatAlarmController(context); |
| } |
| return sInstance; |
| } |
| |
| /** |
| * Starting alarm beep sound and vibration. |
| */ |
| @VisibleForTesting |
| public void startAlarm(Context context) { |
| if (mPlayer != null) { |
| return; |
| } |
| playSound(context); |
| startVibrate(); |
| } |
| |
| /** |
| * Stop alarming beep sound, vibrating, and TTS if initialized. |
| */ |
| @VisibleForTesting |
| public void stopAlarm() { |
| stopPlayer(); |
| stopVibrate(); |
| } |
| |
| @VisibleForTesting |
| protected void playSound(Context context) { |
| Uri uri = new Uri.Builder() |
| .scheme(ContentResolver.SCHEME_ANDROID_RESOURCE) |
| .authority(context.getBasePackageName()) |
| .appendPath(Integer.toString(R.raw.overheat_alarm)).build(); |
| |
| if (mPlayer == null) { |
| mPlayer = new NotificationPlayer(TAG); |
| } |
| mPlayer.setUsesWakeLock(context); |
| mPlayer.play(context, uri, true /* looping */, getAlertAudioAttributes()); |
| } |
| |
| @VisibleForTesting |
| protected void stopPlayer() { |
| if (mPlayer != null) { |
| mPlayer.stop(); |
| mPlayer = null; |
| } |
| } |
| |
| @VisibleForTesting |
| protected void startVibrate() { |
| mShouldVibrate = true; |
| if (mVibrationEffect == null) { |
| mVibrationEffect = VibrationEffect.createWaveform(VIBRATION_PATTERN, -1); |
| } |
| performVibrate(); |
| } |
| |
| @VisibleForTesting |
| protected void performVibrate() { |
| if (mShouldVibrate && mVibrator != null) { |
| mVibrator.vibrate(mVibrationEffect, getAlertAudioAttributes()); |
| Handler.getMain().sendMessageDelayed( |
| obtainMessage(OverheatAlarmController::performVibrate, this), |
| VIBRATION_INTERVAL); |
| } |
| } |
| |
| @VisibleForTesting |
| protected void stopVibrate() { |
| if (mVibrator != null) { |
| mVibrator.cancel(); |
| } |
| mShouldVibrate = false; |
| } |
| |
| /** |
| * Build AudioAttributes for mPlayer(NotificationPlayer) and vibrator |
| * Use the alarm channel so it can vibrate in DnD mode, unless alarms are |
| * specifically disabled in DnD. |
| */ |
| private static AudioAttributes getAlertAudioAttributes() { |
| AudioAttributes.Builder builder = new AudioAttributes.Builder(); |
| builder.setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION); |
| builder.setUsage(AudioAttributes.USAGE_ALARM); |
| // Set FLAG_BYPASS_INTERRUPTION_POLICY and FLAG_BYPASS_MUTE so that it enables |
| // audio in any DnD mode, even in total silence DnD mode (requires MODIFY_PHONE_STATE). |
| builder.setFlags( |
| AudioAttributes.FLAG_BYPASS_INTERRUPTION_POLICY | AudioAttributes.FLAG_BYPASS_MUTE); |
| return builder.build(); |
| } |
| } |