| /* |
| * Copyright 2014, 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.telecomm; |
| |
| import android.content.BroadcastReceiver; |
| import android.content.ComponentName; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.media.AudioManager; |
| import android.media.session.MediaSession; |
| import android.media.session.MediaSessionManager; |
| import android.view.KeyEvent; |
| |
| /** |
| * Static class to handle listening to the headset media buttons. |
| */ |
| final class HeadsetMediaButton { |
| |
| /** |
| * Broadcast receiver for the ACTION_MEDIA_BUTTON broadcast intent. |
| * |
| * This functionality isn't lumped in with the other intents in TelecommBroadcastReceiver |
| * because we instantiate this as a totally separate BroadcastReceiver instance, since we need |
| * to manually adjust its IntentFilter's priority (to make sure we get these intents *before* |
| * the media player.) |
| */ |
| private final class MediaButtonBroadcastReceiver extends BroadcastReceiver { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| KeyEvent event = (KeyEvent) intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT); |
| Log.v(this, "MediaButtonBroadcastReceiver.onReceive()... event = %s.", event); |
| if ((event != null) && (event.getKeyCode() == KeyEvent.KEYCODE_HEADSETHOOK)) { |
| boolean consumed = handleHeadsetHook(event); |
| Log.v(this, "==> handleHeadsetHook(): consumed = %b.", consumed); |
| if (consumed) { |
| abortBroadcast(); |
| } |
| } else { |
| if (CallsManager.getInstance().hasAnyCalls()) { |
| // If the phone is anything other than completely idle, then we consume and |
| // ignore any media key events, otherwise it is too easy to accidentally start |
| // playing music while a phone call is in progress. |
| Log.v(this, "MediaButtonBroadcastReceiver: consumed"); |
| abortBroadcast(); |
| } |
| } |
| } |
| } |
| |
| // Types of media button presses |
| static final int SHORT_PRESS = 1; |
| static final int LONG_PRESS = 2; |
| |
| private final MediaSession.Callback mSessionCallback = new MediaSession.Callback() { |
| @Override |
| public void onMediaButtonEvent(Intent intent) { |
| KeyEvent event = (KeyEvent) intent.getParcelableExtra(Intent.EXTRA_KEY_EVENT); |
| Log.v(this, "SessionCallback.onMediaButton()... event = %s.", event); |
| if ((event != null) && (event.getKeyCode() == KeyEvent.KEYCODE_HEADSETHOOK)) { |
| Log.v(this, "SessionCallback: HEADSETHOOK"); |
| boolean consumed = handleHeadsetHook(event); |
| Log.v(this, "==> handleHeadsetHook(): consumed = %b.", consumed); |
| } |
| } |
| }; |
| |
| private final MediaButtonBroadcastReceiver mMediaButtonReceiver = |
| new MediaButtonBroadcastReceiver(); |
| |
| private final CallsManager mCallsManager; |
| |
| private final MediaSession mSession; |
| |
| HeadsetMediaButton(Context context, CallsManager callsManager) { |
| mCallsManager = callsManager; |
| |
| // Use a separate receiver (from TelecommBroadcastReceiver) for ACTION_MEDIA_BUTTON |
| // broadcasts, since we need to manually adjust its priority (to make sure we get these |
| // intents *before* the media player.) |
| IntentFilter mediaButtonIntentFilter = |
| new IntentFilter(Intent.ACTION_MEDIA_BUTTON); |
| |
| // Make sure we're higher priority than the media player's MediaButtonIntentReceiver (which |
| // currently has the default priority of zero; see apps/Music/AndroidManifest.xml.) |
| mediaButtonIntentFilter.setPriority(1); |
| |
| context.registerReceiver(mMediaButtonReceiver, mediaButtonIntentFilter); |
| |
| // register the component so it gets priority for calls |
| AudioManager am = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); |
| am.registerMediaButtonEventReceiverForCalls(new ComponentName(context.getPackageName(), |
| MediaButtonBroadcastReceiver.class.getName())); |
| |
| // Register a MediaSession but don't enable it yet. This is a |
| // replacement for MediaButtonReceiver |
| MediaSessionManager msm = |
| (MediaSessionManager) context.getSystemService(Context.MEDIA_SESSION_SERVICE); |
| mSession = msm.createSession(HeadsetMediaButton.class.getSimpleName()); |
| mSession.addCallback(mSessionCallback); |
| mSession.setFlags(MediaSession.FLAG_EXCLUSIVE_GLOBAL_PRIORITY |
| | MediaSession.FLAG_HANDLES_MEDIA_BUTTONS); |
| mSession.setPlaybackToLocal(AudioManager.STREAM_VOICE_CALL); |
| } |
| |
| /** |
| * Handles the wired headset button while in-call. |
| * |
| * @return true if we consumed the event. |
| */ |
| private boolean handleHeadsetHook(KeyEvent event) { |
| Log.d(this, "handleHeadsetHook()...%s %s", event.getAction(), event.getRepeatCount()); |
| |
| if (event.isLongPress()) { |
| return mCallsManager.onMediaButton(LONG_PRESS); |
| } else if (event.getAction() == KeyEvent.ACTION_UP && event.getRepeatCount() == 0) { |
| return mCallsManager.onMediaButton(SHORT_PRESS); |
| } |
| |
| return true; |
| } |
| } |