| /* |
| * Copyright (C) 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.server.media; |
| |
| import android.app.ActivityManager; |
| import android.app.INotificationManager; |
| import android.app.KeyguardManager; |
| import android.app.PendingIntent; |
| import android.app.PendingIntent.CanceledException; |
| import android.content.ActivityNotFoundException; |
| import android.content.BroadcastReceiver; |
| import android.content.ComponentName; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.PackageManager; |
| import android.content.pm.UserInfo; |
| import android.database.ContentObserver; |
| import android.media.AudioManager; |
| import android.media.AudioManagerInternal; |
| import android.media.AudioSystem; |
| import android.media.IAudioService; |
| import android.media.IRemoteVolumeController; |
| import android.media.session.IActiveSessionsListener; |
| import android.media.session.ICallback; |
| import android.media.session.IOnMediaKeyListener; |
| import android.media.session.IOnVolumeKeyLongPressListener; |
| import android.media.session.ISession; |
| import android.media.session.ISessionCallback; |
| import android.media.session.ISessionManager; |
| import android.media.session.MediaSession; |
| import android.media.session.MediaSessionManager; |
| import android.net.Uri; |
| import android.os.Binder; |
| import android.os.Bundle; |
| import android.os.Handler; |
| import android.os.IBinder; |
| import android.os.Message; |
| import android.os.PowerManager; |
| import android.os.Process; |
| import android.os.RemoteException; |
| import android.os.ResultReceiver; |
| import android.os.ServiceManager; |
| import android.os.UserHandle; |
| import android.os.UserManager; |
| import android.provider.Settings; |
| import android.speech.RecognizerIntent; |
| import android.text.TextUtils; |
| import android.util.Log; |
| import android.util.Slog; |
| import android.util.SparseArray; |
| import android.util.SparseIntArray; |
| import android.view.KeyEvent; |
| import android.view.ViewConfiguration; |
| |
| import com.android.internal.util.DumpUtils; |
| import com.android.server.LocalServices; |
| import com.android.server.SystemService; |
| import com.android.server.Watchdog; |
| import com.android.server.Watchdog.Monitor; |
| |
| import java.io.FileDescriptor; |
| import java.io.PrintWriter; |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| /** |
| * System implementation of MediaSessionManager |
| */ |
| public class MediaSessionService extends SystemService implements Monitor { |
| private static final String TAG = "MediaSessionService"; |
| static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG); |
| // Leave log for key event always. |
| private static final boolean DEBUG_KEY_EVENT = true; |
| |
| private static final int WAKELOCK_TIMEOUT = 5000; |
| private static final int MEDIA_KEY_LISTENER_TIMEOUT = 1000; |
| |
| private final SessionManagerImpl mSessionManagerImpl; |
| |
| // Keeps the full user id for each user. |
| private final SparseIntArray mFullUserIds = new SparseIntArray(); |
| private final SparseArray<FullUserRecord> mUserRecords = new SparseArray<FullUserRecord>(); |
| private final ArrayList<SessionsListenerRecord> mSessionsListeners |
| = new ArrayList<SessionsListenerRecord>(); |
| private final Object mLock = new Object(); |
| private final MessageHandler mHandler = new MessageHandler(); |
| private final PowerManager.WakeLock mMediaEventWakeLock; |
| private final int mLongPressTimeout; |
| |
| private KeyguardManager mKeyguardManager; |
| private IAudioService mAudioService; |
| private AudioManagerInternal mAudioManagerInternal; |
| private ContentResolver mContentResolver; |
| private SettingsObserver mSettingsObserver; |
| private INotificationManager mNotificationManager; |
| private boolean mHasFeatureLeanback; |
| |
| // The FullUserRecord of the current users. (i.e. The foreground user that isn't a profile) |
| // It's always not null after the MediaSessionService is started. |
| private FullUserRecord mCurrentFullUserRecord; |
| private MediaSessionRecord mGlobalPrioritySession; |
| private AudioPlaybackMonitor mAudioPlaybackMonitor; |
| |
| // Used to notify system UI when remote volume was changed. TODO find a |
| // better way to handle this. |
| private IRemoteVolumeController mRvc; |
| |
| public MediaSessionService(Context context) { |
| super(context); |
| mSessionManagerImpl = new SessionManagerImpl(); |
| PowerManager pm = (PowerManager) context.getSystemService(Context.POWER_SERVICE); |
| mMediaEventWakeLock = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "handleMediaEvent"); |
| mLongPressTimeout = ViewConfiguration.getLongPressTimeout(); |
| mNotificationManager = INotificationManager.Stub.asInterface( |
| ServiceManager.getService(Context.NOTIFICATION_SERVICE)); |
| } |
| |
| @Override |
| public void onStart() { |
| publishBinderService(Context.MEDIA_SESSION_SERVICE, mSessionManagerImpl); |
| Watchdog.getInstance().addMonitor(this); |
| mKeyguardManager = |
| (KeyguardManager) getContext().getSystemService(Context.KEYGUARD_SERVICE); |
| mAudioService = getAudioService(); |
| mAudioPlaybackMonitor = AudioPlaybackMonitor.getInstance(getContext(), mAudioService); |
| mAudioPlaybackMonitor.registerOnAudioPlaybackStartedListener( |
| new AudioPlaybackMonitor.OnAudioPlaybackStartedListener() { |
| @Override |
| public void onAudioPlaybackStarted(int uid) { |
| synchronized (mLock) { |
| FullUserRecord user = |
| getFullUserRecordLocked(UserHandle.getUserId(uid)); |
| if (user != null) { |
| user.mPriorityStack.updateMediaButtonSessionIfNeeded(); |
| } |
| } |
| } |
| }); |
| mAudioManagerInternal = LocalServices.getService(AudioManagerInternal.class); |
| mContentResolver = getContext().getContentResolver(); |
| mSettingsObserver = new SettingsObserver(); |
| mSettingsObserver.observe(); |
| mHasFeatureLeanback = getContext().getPackageManager().hasSystemFeature( |
| PackageManager.FEATURE_LEANBACK); |
| |
| updateUser(); |
| } |
| |
| private IAudioService getAudioService() { |
| IBinder b = ServiceManager.getService(Context.AUDIO_SERVICE); |
| return IAudioService.Stub.asInterface(b); |
| } |
| |
| private boolean isGlobalPriorityActiveLocked() { |
| return mGlobalPrioritySession != null && mGlobalPrioritySession.isActive(); |
| } |
| |
| public void updateSession(MediaSessionRecord record) { |
| synchronized (mLock) { |
| FullUserRecord user = getFullUserRecordLocked(record.getUserId()); |
| if (user == null) { |
| Log.w(TAG, "Unknown session updated. Ignoring."); |
| return; |
| } |
| if ((record.getFlags() & MediaSession.FLAG_EXCLUSIVE_GLOBAL_PRIORITY) != 0) { |
| if (DEBUG_KEY_EVENT) { |
| Log.d(TAG, "Global priority session is updated, active=" + record.isActive()); |
| } |
| user.pushAddressedPlayerChangedLocked(); |
| } else { |
| if (!user.mPriorityStack.contains(record)) { |
| Log.w(TAG, "Unknown session updated. Ignoring."); |
| return; |
| } |
| user.mPriorityStack.onSessionStateChange(record); |
| } |
| mHandler.postSessionsChanged(record.getUserId()); |
| } |
| } |
| |
| public void setGlobalPrioritySession(MediaSessionRecord record) { |
| synchronized (mLock) { |
| FullUserRecord user = getFullUserRecordLocked(record.getUserId()); |
| if (mGlobalPrioritySession != record) { |
| Log.d(TAG, "Global priority session is changed from " + mGlobalPrioritySession |
| + " to " + record); |
| mGlobalPrioritySession = record; |
| if (user != null && user.mPriorityStack.contains(record)) { |
| // Handle the global priority session separately. |
| // Otherwise, it can be the media button session regardless of the active state |
| // because it or other system components might have been the lastly played media |
| // app. |
| user.mPriorityStack.removeSession(record); |
| } |
| } |
| } |
| } |
| |
| private List<MediaSessionRecord> getActiveSessionsLocked(int userId) { |
| List<MediaSessionRecord> records = new ArrayList<>(); |
| if (userId == UserHandle.USER_ALL) { |
| int size = mUserRecords.size(); |
| for (int i = 0; i < size; i++) { |
| records.addAll(mUserRecords.valueAt(i).mPriorityStack.getActiveSessions(userId)); |
| } |
| } else { |
| FullUserRecord user = getFullUserRecordLocked(userId); |
| if (user == null) { |
| Log.w(TAG, "getSessions failed. Unknown user " + userId); |
| return records; |
| } |
| records.addAll(user.mPriorityStack.getActiveSessions(userId)); |
| } |
| |
| // Return global priority session at the first whenever it's asked. |
| if (isGlobalPriorityActiveLocked() |
| && (userId == UserHandle.USER_ALL |
| || userId == mGlobalPrioritySession.getUserId())) { |
| records.add(0, mGlobalPrioritySession); |
| } |
| return records; |
| } |
| |
| /** |
| * Tells the system UI that volume has changed on an active remote session. |
| */ |
| public void notifyRemoteVolumeChanged(int flags, MediaSessionRecord session) { |
| if (mRvc == null || !session.isActive()) { |
| return; |
| } |
| try { |
| mRvc.remoteVolumeChanged(session.getControllerBinder(), flags); |
| } catch (Exception e) { |
| Log.wtf(TAG, "Error sending volume change to system UI.", e); |
| } |
| } |
| |
| public void onSessionPlaystateChanged(MediaSessionRecord record, int oldState, int newState) { |
| synchronized (mLock) { |
| FullUserRecord user = getFullUserRecordLocked(record.getUserId()); |
| if (user == null || !user.mPriorityStack.contains(record)) { |
| Log.d(TAG, "Unknown session changed playback state. Ignoring."); |
| return; |
| } |
| user.mPriorityStack.onPlaystateChanged(record, oldState, newState); |
| } |
| } |
| |
| public void onSessionPlaybackTypeChanged(MediaSessionRecord record) { |
| synchronized (mLock) { |
| FullUserRecord user = getFullUserRecordLocked(record.getUserId()); |
| if (user == null || !user.mPriorityStack.contains(record)) { |
| Log.d(TAG, "Unknown session changed playback type. Ignoring."); |
| return; |
| } |
| pushRemoteVolumeUpdateLocked(record.getUserId()); |
| } |
| } |
| |
| @Override |
| public void onStartUser(int userId) { |
| if (DEBUG) Log.d(TAG, "onStartUser: " + userId); |
| updateUser(); |
| } |
| |
| @Override |
| public void onSwitchUser(int userId) { |
| if (DEBUG) Log.d(TAG, "onSwitchUser: " + userId); |
| updateUser(); |
| } |
| |
| @Override |
| public void onStopUser(int userId) { |
| if (DEBUG) Log.d(TAG, "onStopUser: " + userId); |
| synchronized (mLock) { |
| FullUserRecord user = getFullUserRecordLocked(userId); |
| if (user != null) { |
| if (user.mFullUserId == userId) { |
| user.destroySessionsForUserLocked(UserHandle.USER_ALL); |
| mUserRecords.remove(userId); |
| } else { |
| user.destroySessionsForUserLocked(userId); |
| } |
| } |
| updateUser(); |
| } |
| } |
| |
| @Override |
| public void monitor() { |
| synchronized (mLock) { |
| // Check for deadlock |
| } |
| } |
| |
| protected void enforcePhoneStatePermission(int pid, int uid) { |
| if (getContext().checkPermission(android.Manifest.permission.MODIFY_PHONE_STATE, pid, uid) |
| != PackageManager.PERMISSION_GRANTED) { |
| throw new SecurityException("Must hold the MODIFY_PHONE_STATE permission."); |
| } |
| } |
| |
| void sessionDied(MediaSessionRecord session) { |
| synchronized (mLock) { |
| destroySessionLocked(session); |
| } |
| } |
| |
| void destroySession(MediaSessionRecord session) { |
| synchronized (mLock) { |
| destroySessionLocked(session); |
| } |
| } |
| |
| private void updateUser() { |
| synchronized (mLock) { |
| UserManager manager = (UserManager) getContext().getSystemService(Context.USER_SERVICE); |
| mFullUserIds.clear(); |
| List<UserInfo> allUsers = manager.getUsers(); |
| if (allUsers != null) { |
| for (UserInfo userInfo : allUsers) { |
| if (userInfo.isManagedProfile()) { |
| mFullUserIds.put(userInfo.id, userInfo.profileGroupId); |
| } else { |
| mFullUserIds.put(userInfo.id, userInfo.id); |
| if (mUserRecords.get(userInfo.id) == null) { |
| mUserRecords.put(userInfo.id, new FullUserRecord(userInfo.id)); |
| } |
| } |
| } |
| } |
| // Ensure that the current full user exists. |
| int currentFullUserId = ActivityManager.getCurrentUser(); |
| mCurrentFullUserRecord = mUserRecords.get(currentFullUserId); |
| if (mCurrentFullUserRecord == null) { |
| Log.w(TAG, "Cannot find FullUserInfo for the current user " + currentFullUserId); |
| mCurrentFullUserRecord = new FullUserRecord(currentFullUserId); |
| mUserRecords.put(currentFullUserId, mCurrentFullUserRecord); |
| } |
| mFullUserIds.put(currentFullUserId, currentFullUserId); |
| } |
| } |
| |
| private void updateActiveSessionListeners() { |
| synchronized (mLock) { |
| for (int i = mSessionsListeners.size() - 1; i >= 0; i--) { |
| SessionsListenerRecord listener = mSessionsListeners.get(i); |
| try { |
| enforceMediaPermissions(listener.mComponentName, listener.mPid, listener.mUid, |
| listener.mUserId); |
| } catch (SecurityException e) { |
| Log.i(TAG, "ActiveSessionsListener " + listener.mComponentName |
| + " is no longer authorized. Disconnecting."); |
| mSessionsListeners.remove(i); |
| try { |
| listener.mListener |
| .onActiveSessionsChanged(new ArrayList<MediaSession.Token>()); |
| } catch (Exception e1) { |
| // ignore |
| } |
| } |
| } |
| } |
| } |
| |
| /* |
| * When a session is removed several things need to happen. |
| * 1. We need to remove it from the relevant user. |
| * 2. We need to remove it from the priority stack. |
| * 3. We need to remove it from all sessions. |
| * 4. If this is the system priority session we need to clear it. |
| * 5. We need to unlink to death from the cb binder |
| * 6. We need to tell the session to do any final cleanup (onDestroy) |
| */ |
| private void destroySessionLocked(MediaSessionRecord session) { |
| if (DEBUG) { |
| Log.d(TAG, "Destroying " + session); |
| } |
| FullUserRecord user = getFullUserRecordLocked(session.getUserId()); |
| if (mGlobalPrioritySession == session) { |
| mGlobalPrioritySession = null; |
| if (session.isActive() && user != null) { |
| user.pushAddressedPlayerChangedLocked(); |
| } |
| } else { |
| if (user != null) { |
| user.mPriorityStack.removeSession(session); |
| } |
| } |
| |
| try { |
| session.getCallback().asBinder().unlinkToDeath(session, 0); |
| } catch (Exception e) { |
| // ignore exceptions while destroying a session. |
| } |
| session.onDestroy(); |
| mHandler.postSessionsChanged(session.getUserId()); |
| } |
| |
| private void enforcePackageName(String packageName, int uid) { |
| if (TextUtils.isEmpty(packageName)) { |
| throw new IllegalArgumentException("packageName may not be empty"); |
| } |
| String[] packages = getContext().getPackageManager().getPackagesForUid(uid); |
| final int packageCount = packages.length; |
| for (int i = 0; i < packageCount; i++) { |
| if (packageName.equals(packages[i])) { |
| return; |
| } |
| } |
| throw new IllegalArgumentException("packageName is not owned by the calling process"); |
| } |
| |
| /** |
| * Checks a caller's authorization to register an IRemoteControlDisplay. |
| * Authorization is granted if one of the following is true: |
| * <ul> |
| * <li>the caller has android.Manifest.permission.MEDIA_CONTENT_CONTROL |
| * permission</li> |
| * <li>the caller's listener is one of the enabled notification listeners |
| * for the caller's user</li> |
| * </ul> |
| */ |
| private void enforceMediaPermissions(ComponentName compName, int pid, int uid, |
| int resolvedUserId) { |
| if (isCurrentVolumeController(uid, pid)) return; |
| if (getContext() |
| .checkPermission(android.Manifest.permission.MEDIA_CONTENT_CONTROL, pid, uid) |
| != PackageManager.PERMISSION_GRANTED |
| && !isEnabledNotificationListener(compName, UserHandle.getUserId(uid), |
| resolvedUserId)) { |
| throw new SecurityException("Missing permission to control media."); |
| } |
| } |
| |
| private boolean isCurrentVolumeController(int uid, int pid) { |
| return getContext().checkPermission(android.Manifest.permission.STATUS_BAR_SERVICE, |
| pid, uid) == PackageManager.PERMISSION_GRANTED; |
| } |
| |
| private void enforceSystemUiPermission(String action, int pid, int uid) { |
| if (!isCurrentVolumeController(uid, pid)) { |
| throw new SecurityException("Only system ui may " + action); |
| } |
| } |
| |
| /** |
| * This checks if the component is an enabled notification listener for the |
| * specified user. Enabled components may only operate on behalf of the user |
| * they're running as. |
| * |
| * @param compName The component that is enabled. |
| * @param userId The user id of the caller. |
| * @param forUserId The user id they're making the request on behalf of. |
| * @return True if the component is enabled, false otherwise |
| */ |
| private boolean isEnabledNotificationListener(ComponentName compName, int userId, |
| int forUserId) { |
| if (userId != forUserId) { |
| // You may not access another user's content as an enabled listener. |
| return false; |
| } |
| if (DEBUG) { |
| Log.d(TAG, "Checking if enabled notification listener " + compName); |
| } |
| if (compName != null) { |
| try { |
| return mNotificationManager.isNotificationListenerAccessGrantedForUser( |
| compName, userId); |
| } catch(RemoteException e) { |
| Log.w(TAG, "Dead NotificationManager in isEnabledNotificationListener", e); |
| } |
| } |
| return false; |
| } |
| |
| private MediaSessionRecord createSessionInternal(int callerPid, int callerUid, int userId, |
| String callerPackageName, ISessionCallback cb, String tag) throws RemoteException { |
| synchronized (mLock) { |
| return createSessionLocked(callerPid, callerUid, userId, callerPackageName, cb, tag); |
| } |
| } |
| |
| /* |
| * When a session is created the following things need to happen. |
| * 1. Its callback binder needs a link to death |
| * 2. It needs to be added to all sessions. |
| * 3. It needs to be added to the priority stack. |
| * 4. It needs to be added to the relevant user record. |
| */ |
| private MediaSessionRecord createSessionLocked(int callerPid, int callerUid, int userId, |
| String callerPackageName, ISessionCallback cb, String tag) { |
| FullUserRecord user = getFullUserRecordLocked(userId); |
| if (user == null) { |
| Log.wtf(TAG, "Request from invalid user: " + userId); |
| throw new RuntimeException("Session request from invalid user."); |
| } |
| |
| final MediaSessionRecord session = new MediaSessionRecord(callerPid, callerUid, userId, |
| callerPackageName, cb, tag, this, mHandler.getLooper()); |
| try { |
| cb.asBinder().linkToDeath(session, 0); |
| } catch (RemoteException e) { |
| throw new RuntimeException("Media Session owner died prematurely.", e); |
| } |
| |
| user.mPriorityStack.addSession(session); |
| mHandler.postSessionsChanged(userId); |
| |
| if (DEBUG) { |
| Log.d(TAG, "Created session for " + callerPackageName + " with tag " + tag); |
| } |
| return session; |
| } |
| |
| private int findIndexOfSessionsListenerLocked(IActiveSessionsListener listener) { |
| for (int i = mSessionsListeners.size() - 1; i >= 0; i--) { |
| if (mSessionsListeners.get(i).mListener.asBinder() == listener.asBinder()) { |
| return i; |
| } |
| } |
| return -1; |
| } |
| |
| private void pushSessionsChanged(int userId) { |
| synchronized (mLock) { |
| FullUserRecord user = getFullUserRecordLocked(userId); |
| if (user == null) { |
| Log.w(TAG, "pushSessionsChanged failed. No user with id=" + userId); |
| return; |
| } |
| List<MediaSessionRecord> records = getActiveSessionsLocked(userId); |
| int size = records.size(); |
| ArrayList<MediaSession.Token> tokens = new ArrayList<MediaSession.Token>(); |
| for (int i = 0; i < size; i++) { |
| tokens.add(new MediaSession.Token(records.get(i).getControllerBinder())); |
| } |
| pushRemoteVolumeUpdateLocked(userId); |
| for (int i = mSessionsListeners.size() - 1; i >= 0; i--) { |
| SessionsListenerRecord record = mSessionsListeners.get(i); |
| if (record.mUserId == UserHandle.USER_ALL || record.mUserId == userId) { |
| try { |
| record.mListener.onActiveSessionsChanged(tokens); |
| } catch (RemoteException e) { |
| Log.w(TAG, "Dead ActiveSessionsListener in pushSessionsChanged, removing", |
| e); |
| mSessionsListeners.remove(i); |
| } |
| } |
| } |
| } |
| } |
| |
| private void pushRemoteVolumeUpdateLocked(int userId) { |
| if (mRvc != null) { |
| try { |
| FullUserRecord user = getFullUserRecordLocked(userId); |
| if (user == null) { |
| Log.w(TAG, "pushRemoteVolumeUpdateLocked failed. No user with id=" + userId); |
| return; |
| } |
| MediaSessionRecord record = user.mPriorityStack.getDefaultRemoteSession(userId); |
| mRvc.updateRemoteController(record == null ? null : record.getControllerBinder()); |
| } catch (RemoteException e) { |
| Log.wtf(TAG, "Error sending default remote volume to sys ui.", e); |
| } |
| } |
| } |
| |
| /** |
| * Called when the media button receiver for the {@param record} is changed. |
| * |
| * @param record the media session whose media button receiver is updated. |
| */ |
| public void onMediaButtonReceiverChanged(MediaSessionRecord record) { |
| synchronized (mLock) { |
| FullUserRecord user = getFullUserRecordLocked(record.getUserId()); |
| MediaSessionRecord mediaButtonSession = |
| user.mPriorityStack.getMediaButtonSession(); |
| if (record == mediaButtonSession) { |
| user.rememberMediaButtonReceiverLocked(mediaButtonSession); |
| } |
| } |
| } |
| |
| private String getCallingPackageName(int uid) { |
| String[] packages = getContext().getPackageManager().getPackagesForUid(uid); |
| if (packages != null && packages.length > 0) { |
| return packages[0]; |
| } |
| return ""; |
| } |
| |
| private void dispatchVolumeKeyLongPressLocked(KeyEvent keyEvent) { |
| try { |
| mCurrentFullUserRecord.mOnVolumeKeyLongPressListener.onVolumeKeyLongPress(keyEvent); |
| } catch (RemoteException e) { |
| Log.w(TAG, "Failed to send " + keyEvent + " to volume key long-press listener"); |
| } |
| } |
| |
| private FullUserRecord getFullUserRecordLocked(int userId) { |
| int fullUserId = mFullUserIds.get(userId, -1); |
| if (fullUserId < 0) { |
| return null; |
| } |
| return mUserRecords.get(fullUserId); |
| } |
| |
| /** |
| * Information about a full user and its corresponding managed profiles. |
| * |
| * <p>Since the full user runs together with its managed profiles, a user wouldn't differentiate |
| * them when he/she presses a media/volume button. So keeping media sessions for them in one |
| * place makes more sense and increases the readability.</p> |
| * <p>The contents of this object is guarded by {@link #mLock}. |
| */ |
| final class FullUserRecord implements MediaSessionStack.OnMediaButtonSessionChangedListener { |
| private static final String COMPONENT_NAME_USER_ID_DELIM = ","; |
| private final int mFullUserId; |
| private final MediaSessionStack mPriorityStack; |
| private PendingIntent mLastMediaButtonReceiver; |
| private ComponentName mRestoredMediaButtonReceiver; |
| private int mRestoredMediaButtonReceiverUserId; |
| |
| private IOnVolumeKeyLongPressListener mOnVolumeKeyLongPressListener; |
| private int mOnVolumeKeyLongPressListenerUid; |
| private KeyEvent mInitialDownVolumeKeyEvent; |
| private int mInitialDownVolumeStream; |
| private boolean mInitialDownMusicOnly; |
| |
| private IOnMediaKeyListener mOnMediaKeyListener; |
| private int mOnMediaKeyListenerUid; |
| private ICallback mCallback; |
| |
| public FullUserRecord(int fullUserId) { |
| mFullUserId = fullUserId; |
| mPriorityStack = new MediaSessionStack(mAudioPlaybackMonitor, this); |
| // Restore the remembered media button receiver before the boot. |
| String mediaButtonReceiver = Settings.Secure.getStringForUser(mContentResolver, |
| Settings.System.MEDIA_BUTTON_RECEIVER, mFullUserId); |
| if (mediaButtonReceiver == null) { |
| return; |
| } |
| String[] tokens = mediaButtonReceiver.split(COMPONENT_NAME_USER_ID_DELIM); |
| if (tokens == null || tokens.length != 2) { |
| return; |
| } |
| mRestoredMediaButtonReceiver = ComponentName.unflattenFromString(tokens[0]); |
| mRestoredMediaButtonReceiverUserId = Integer.parseInt(tokens[1]); |
| } |
| |
| public void destroySessionsForUserLocked(int userId) { |
| List<MediaSessionRecord> sessions = mPriorityStack.getPriorityList(false, userId); |
| for (MediaSessionRecord session : sessions) { |
| MediaSessionService.this.destroySessionLocked(session); |
| } |
| } |
| |
| public void dumpLocked(PrintWriter pw, String prefix) { |
| pw.print(prefix + "Record for full_user=" + mFullUserId); |
| // Dump managed profile user ids associated with this user. |
| int size = mFullUserIds.size(); |
| for (int i = 0; i < size; i++) { |
| if (mFullUserIds.keyAt(i) != mFullUserIds.valueAt(i) |
| && mFullUserIds.valueAt(i) == mFullUserId) { |
| pw.print(", profile_user=" + mFullUserIds.keyAt(i)); |
| } |
| } |
| pw.println(); |
| String indent = prefix + " "; |
| pw.println(indent + "Volume key long-press listener: " + mOnVolumeKeyLongPressListener); |
| pw.println(indent + "Volume key long-press listener package: " + |
| getCallingPackageName(mOnVolumeKeyLongPressListenerUid)); |
| pw.println(indent + "Media key listener: " + mOnMediaKeyListener); |
| pw.println(indent + "Media key listener package: " + |
| getCallingPackageName(mOnMediaKeyListenerUid)); |
| pw.println(indent + "Callback: " + mCallback); |
| pw.println(indent + "Last MediaButtonReceiver: " + mLastMediaButtonReceiver); |
| pw.println(indent + "Restored MediaButtonReceiver: " + mRestoredMediaButtonReceiver); |
| mPriorityStack.dump(pw, indent); |
| } |
| |
| @Override |
| public void onMediaButtonSessionChanged(MediaSessionRecord oldMediaButtonSession, |
| MediaSessionRecord newMediaButtonSession) { |
| if (DEBUG_KEY_EVENT) { |
| Log.d(TAG, "Media button session is changed to " + newMediaButtonSession); |
| } |
| synchronized (mLock) { |
| if (oldMediaButtonSession != null) { |
| mHandler.postSessionsChanged(oldMediaButtonSession.getUserId()); |
| } |
| if (newMediaButtonSession != null) { |
| rememberMediaButtonReceiverLocked(newMediaButtonSession); |
| mHandler.postSessionsChanged(newMediaButtonSession.getUserId()); |
| } |
| pushAddressedPlayerChangedLocked(); |
| } |
| } |
| |
| // Remember media button receiver and keep it in the persistent storage. |
| public void rememberMediaButtonReceiverLocked(MediaSessionRecord record) { |
| PendingIntent receiver = record.getMediaButtonReceiver(); |
| mLastMediaButtonReceiver = receiver; |
| mRestoredMediaButtonReceiver = null; |
| String componentName = ""; |
| if (receiver != null) { |
| ComponentName component = receiver.getIntent().getComponent(); |
| if (component != null |
| && record.getPackageName().equals(component.getPackageName())) { |
| componentName = component.flattenToString(); |
| } |
| } |
| Settings.Secure.putStringForUser(mContentResolver, |
| Settings.System.MEDIA_BUTTON_RECEIVER, |
| componentName + COMPONENT_NAME_USER_ID_DELIM + record.getUserId(), |
| mFullUserId); |
| } |
| |
| private void pushAddressedPlayerChangedLocked() { |
| if (mCallback == null) { |
| return; |
| } |
| try { |
| MediaSessionRecord mediaButtonSession = getMediaButtonSessionLocked(); |
| if (mediaButtonSession != null) { |
| mCallback.onAddressedPlayerChangedToMediaSession( |
| new MediaSession.Token(mediaButtonSession.getControllerBinder())); |
| } else if (mCurrentFullUserRecord.mLastMediaButtonReceiver != null) { |
| mCallback.onAddressedPlayerChangedToMediaButtonReceiver( |
| mCurrentFullUserRecord.mLastMediaButtonReceiver |
| .getIntent().getComponent()); |
| } else if (mCurrentFullUserRecord.mRestoredMediaButtonReceiver != null) { |
| mCallback.onAddressedPlayerChangedToMediaButtonReceiver( |
| mCurrentFullUserRecord.mRestoredMediaButtonReceiver); |
| } |
| } catch (RemoteException e) { |
| Log.w(TAG, "Failed to pushAddressedPlayerChangedLocked", e); |
| } |
| } |
| |
| private MediaSessionRecord getMediaButtonSessionLocked() { |
| return isGlobalPriorityActiveLocked() |
| ? mGlobalPrioritySession : mPriorityStack.getMediaButtonSession(); |
| } |
| } |
| |
| final class SessionsListenerRecord implements IBinder.DeathRecipient { |
| private final IActiveSessionsListener mListener; |
| private final ComponentName mComponentName; |
| private final int mUserId; |
| private final int mPid; |
| private final int mUid; |
| |
| public SessionsListenerRecord(IActiveSessionsListener listener, |
| ComponentName componentName, |
| int userId, int pid, int uid) { |
| mListener = listener; |
| mComponentName = componentName; |
| mUserId = userId; |
| mPid = pid; |
| mUid = uid; |
| } |
| |
| @Override |
| public void binderDied() { |
| synchronized (mLock) { |
| mSessionsListeners.remove(this); |
| } |
| } |
| } |
| |
| final class SettingsObserver extends ContentObserver { |
| private final Uri mSecureSettingsUri = Settings.Secure.getUriFor( |
| Settings.Secure.ENABLED_NOTIFICATION_LISTENERS); |
| |
| private SettingsObserver() { |
| super(null); |
| } |
| |
| private void observe() { |
| mContentResolver.registerContentObserver(mSecureSettingsUri, |
| false, this, UserHandle.USER_ALL); |
| } |
| |
| @Override |
| public void onChange(boolean selfChange, Uri uri) { |
| updateActiveSessionListeners(); |
| } |
| } |
| |
| class SessionManagerImpl extends ISessionManager.Stub { |
| private static final String EXTRA_WAKELOCK_ACQUIRED = |
| "android.media.AudioService.WAKELOCK_ACQUIRED"; |
| private static final int WAKELOCK_RELEASE_ON_FINISHED = 1980; // magic number |
| |
| private boolean mVoiceButtonDown = false; |
| private boolean mVoiceButtonHandled = false; |
| |
| @Override |
| public ISession createSession(String packageName, ISessionCallback cb, String tag, |
| int userId) throws RemoteException { |
| final int pid = Binder.getCallingPid(); |
| final int uid = Binder.getCallingUid(); |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| enforcePackageName(packageName, uid); |
| int resolvedUserId = ActivityManager.handleIncomingUser(pid, uid, userId, |
| false /* allowAll */, true /* requireFull */, "createSession", packageName); |
| if (cb == null) { |
| throw new IllegalArgumentException("Controller callback cannot be null"); |
| } |
| return createSessionInternal(pid, uid, resolvedUserId, packageName, cb, tag) |
| .getSessionBinder(); |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| @Override |
| public List<IBinder> getSessions(ComponentName componentName, int userId) { |
| final int pid = Binder.getCallingPid(); |
| final int uid = Binder.getCallingUid(); |
| final long token = Binder.clearCallingIdentity(); |
| |
| try { |
| int resolvedUserId = verifySessionsRequest(componentName, userId, pid, uid); |
| ArrayList<IBinder> binders = new ArrayList<IBinder>(); |
| synchronized (mLock) { |
| List<MediaSessionRecord> records = getActiveSessionsLocked(resolvedUserId); |
| for (MediaSessionRecord record : records) { |
| binders.add(record.getControllerBinder().asBinder()); |
| } |
| } |
| return binders; |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| @Override |
| public void addSessionsListener(IActiveSessionsListener listener, |
| ComponentName componentName, int userId) throws RemoteException { |
| final int pid = Binder.getCallingPid(); |
| final int uid = Binder.getCallingUid(); |
| final long token = Binder.clearCallingIdentity(); |
| |
| try { |
| int resolvedUserId = verifySessionsRequest(componentName, userId, pid, uid); |
| synchronized (mLock) { |
| int index = findIndexOfSessionsListenerLocked(listener); |
| if (index != -1) { |
| Log.w(TAG, "ActiveSessionsListener is already added, ignoring"); |
| return; |
| } |
| SessionsListenerRecord record = new SessionsListenerRecord(listener, |
| componentName, resolvedUserId, pid, uid); |
| try { |
| listener.asBinder().linkToDeath(record, 0); |
| } catch (RemoteException e) { |
| Log.e(TAG, "ActiveSessionsListener is dead, ignoring it", e); |
| return; |
| } |
| mSessionsListeners.add(record); |
| } |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| @Override |
| public void removeSessionsListener(IActiveSessionsListener listener) |
| throws RemoteException { |
| synchronized (mLock) { |
| int index = findIndexOfSessionsListenerLocked(listener); |
| if (index != -1) { |
| SessionsListenerRecord record = mSessionsListeners.remove(index); |
| try { |
| record.mListener.asBinder().unlinkToDeath(record, 0); |
| } catch (Exception e) { |
| // ignore exceptions, the record is being removed |
| } |
| } |
| } |
| } |
| |
| /** |
| * Handles the dispatching of the media button events to one of the |
| * registered listeners, or if there was none, broadcast an |
| * ACTION_MEDIA_BUTTON intent to the rest of the system. |
| * |
| * @param keyEvent a non-null KeyEvent whose key code is one of the |
| * supported media buttons |
| * @param needWakeLock true if a PARTIAL_WAKE_LOCK needs to be held |
| * while this key event is dispatched. |
| */ |
| @Override |
| public void dispatchMediaKeyEvent(KeyEvent keyEvent, boolean needWakeLock) { |
| if (keyEvent == null || !KeyEvent.isMediaKey(keyEvent.getKeyCode())) { |
| Log.w(TAG, "Attempted to dispatch null or non-media key event."); |
| return; |
| } |
| |
| final int pid = Binder.getCallingPid(); |
| final int uid = Binder.getCallingUid(); |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| if (DEBUG) { |
| Log.d(TAG, "dispatchMediaKeyEvent, pid=" + pid + ", uid=" + uid + ", event=" |
| + keyEvent); |
| } |
| if (!isUserSetupComplete()) { |
| // Global media key handling can have the side-effect of starting new |
| // activities which is undesirable while setup is in progress. |
| Slog.i(TAG, "Not dispatching media key event because user " |
| + "setup is in progress."); |
| return; |
| } |
| |
| synchronized (mLock) { |
| boolean isGlobalPriorityActive = isGlobalPriorityActiveLocked(); |
| if (isGlobalPriorityActive && uid != Process.SYSTEM_UID) { |
| // Prevent dispatching key event through reflection while the global |
| // priority session is active. |
| Slog.i(TAG, "Only the system can dispatch media key event " |
| + "to the global priority session."); |
| return; |
| } |
| if (!isGlobalPriorityActive) { |
| if (mCurrentFullUserRecord.mOnMediaKeyListener != null) { |
| if (DEBUG_KEY_EVENT) { |
| Log.d(TAG, "Send " + keyEvent + " to the media key listener"); |
| } |
| try { |
| mCurrentFullUserRecord.mOnMediaKeyListener.onMediaKey(keyEvent, |
| new MediaKeyListenerResultReceiver(keyEvent, needWakeLock)); |
| return; |
| } catch (RemoteException e) { |
| Log.w(TAG, "Failed to send " + keyEvent |
| + " to the media key listener"); |
| } |
| } |
| } |
| if (!isGlobalPriorityActive && isVoiceKey(keyEvent.getKeyCode())) { |
| handleVoiceKeyEventLocked(keyEvent, needWakeLock); |
| } else { |
| dispatchMediaKeyEventLocked(keyEvent, needWakeLock); |
| } |
| } |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| @Override |
| public void setCallback(ICallback callback) { |
| final int pid = Binder.getCallingPid(); |
| final int uid = Binder.getCallingUid(); |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| if (!UserHandle.isSameApp(uid, Process.BLUETOOTH_UID)) { |
| throw new SecurityException("Only Bluetooth service processes can set" |
| + " Callback"); |
| } |
| synchronized (mLock) { |
| int userId = UserHandle.getUserId(uid); |
| FullUserRecord user = getFullUserRecordLocked(userId); |
| if (user == null || user.mFullUserId != userId) { |
| Log.w(TAG, "Only the full user can set the callback" |
| + ", userId=" + userId); |
| return; |
| } |
| user.mCallback = callback; |
| Log.d(TAG, "The callback " + user.mCallback |
| + " is set by " + getCallingPackageName(uid)); |
| if (user.mCallback == null) { |
| return; |
| } |
| try { |
| user.mCallback.asBinder().linkToDeath( |
| new IBinder.DeathRecipient() { |
| @Override |
| public void binderDied() { |
| synchronized (mLock) { |
| user.mCallback = null; |
| } |
| } |
| }, 0); |
| user.pushAddressedPlayerChangedLocked(); |
| } catch (RemoteException e) { |
| Log.w(TAG, "Failed to set callback", e); |
| user.mCallback = null; |
| } |
| } |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| @Override |
| public void setOnVolumeKeyLongPressListener(IOnVolumeKeyLongPressListener listener) { |
| final int pid = Binder.getCallingPid(); |
| final int uid = Binder.getCallingUid(); |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| // Enforce SET_VOLUME_KEY_LONG_PRESS_LISTENER permission. |
| if (getContext().checkPermission( |
| android.Manifest.permission.SET_VOLUME_KEY_LONG_PRESS_LISTENER, pid, uid) |
| != PackageManager.PERMISSION_GRANTED) { |
| throw new SecurityException("Must hold the SET_VOLUME_KEY_LONG_PRESS_LISTENER" + |
| " permission."); |
| } |
| |
| synchronized (mLock) { |
| int userId = UserHandle.getUserId(uid); |
| FullUserRecord user = getFullUserRecordLocked(userId); |
| if (user == null || user.mFullUserId != userId) { |
| Log.w(TAG, "Only the full user can set the volume key long-press listener" |
| + ", userId=" + userId); |
| return; |
| } |
| if (user.mOnVolumeKeyLongPressListener != null && |
| user.mOnVolumeKeyLongPressListenerUid != uid) { |
| Log.w(TAG, "The volume key long-press listener cannot be reset" |
| + " by another app , mOnVolumeKeyLongPressListener=" |
| + user.mOnVolumeKeyLongPressListenerUid |
| + ", uid=" + uid); |
| return; |
| } |
| |
| user.mOnVolumeKeyLongPressListener = listener; |
| user.mOnVolumeKeyLongPressListenerUid = uid; |
| |
| Log.d(TAG, "The volume key long-press listener " |
| + listener + " is set by " + getCallingPackageName(uid)); |
| |
| if (user.mOnVolumeKeyLongPressListener != null) { |
| try { |
| user.mOnVolumeKeyLongPressListener.asBinder().linkToDeath( |
| new IBinder.DeathRecipient() { |
| @Override |
| public void binderDied() { |
| synchronized (mLock) { |
| user.mOnVolumeKeyLongPressListener = null; |
| } |
| } |
| }, 0); |
| } catch (RemoteException e) { |
| Log.w(TAG, "Failed to set death recipient " |
| + user.mOnVolumeKeyLongPressListener); |
| user.mOnVolumeKeyLongPressListener = null; |
| } |
| } |
| } |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| @Override |
| public void setOnMediaKeyListener(IOnMediaKeyListener listener) { |
| final int pid = Binder.getCallingPid(); |
| final int uid = Binder.getCallingUid(); |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| // Enforce SET_MEDIA_KEY_LISTENER permission. |
| if (getContext().checkPermission( |
| android.Manifest.permission.SET_MEDIA_KEY_LISTENER, pid, uid) |
| != PackageManager.PERMISSION_GRANTED) { |
| throw new SecurityException("Must hold the SET_MEDIA_KEY_LISTENER" + |
| " permission."); |
| } |
| |
| synchronized (mLock) { |
| int userId = UserHandle.getUserId(uid); |
| FullUserRecord user = getFullUserRecordLocked(userId); |
| if (user == null || user.mFullUserId != userId) { |
| Log.w(TAG, "Only the full user can set the media key listener" |
| + ", userId=" + userId); |
| return; |
| } |
| if (user.mOnMediaKeyListener != null && user.mOnMediaKeyListenerUid != uid) { |
| Log.w(TAG, "The media key listener cannot be reset by another app. " |
| + ", mOnMediaKeyListenerUid=" + user.mOnMediaKeyListenerUid |
| + ", uid=" + uid); |
| return; |
| } |
| |
| user.mOnMediaKeyListener = listener; |
| user.mOnMediaKeyListenerUid = uid; |
| |
| Log.d(TAG, "The media key listener " + user.mOnMediaKeyListener |
| + " is set by " + getCallingPackageName(uid)); |
| |
| if (user.mOnMediaKeyListener != null) { |
| try { |
| user.mOnMediaKeyListener.asBinder().linkToDeath( |
| new IBinder.DeathRecipient() { |
| @Override |
| public void binderDied() { |
| synchronized (mLock) { |
| user.mOnMediaKeyListener = null; |
| } |
| } |
| }, 0); |
| } catch (RemoteException e) { |
| Log.w(TAG, "Failed to set death recipient " + user.mOnMediaKeyListener); |
| user.mOnMediaKeyListener = null; |
| } |
| } |
| } |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| /** |
| * Handles the dispatching of the volume button events to one of the |
| * registered listeners. If there's a volume key long-press listener and |
| * there's no active global priority session, long-pressess will be sent to the |
| * long-press listener instead of adjusting volume. |
| * |
| * @param keyEvent a non-null KeyEvent whose key code is one of the |
| * {@link KeyEvent#KEYCODE_VOLUME_UP}, |
| * {@link KeyEvent#KEYCODE_VOLUME_DOWN}, |
| * or {@link KeyEvent#KEYCODE_VOLUME_MUTE}. |
| * @param stream stream type to adjust volume. |
| * @param musicOnly true if both UI nor haptic feedback aren't needed when adjust volume. |
| */ |
| @Override |
| public void dispatchVolumeKeyEvent(KeyEvent keyEvent, int stream, boolean musicOnly) { |
| if (keyEvent == null || |
| (keyEvent.getKeyCode() != KeyEvent.KEYCODE_VOLUME_UP |
| && keyEvent.getKeyCode() != KeyEvent.KEYCODE_VOLUME_DOWN |
| && keyEvent.getKeyCode() != KeyEvent.KEYCODE_VOLUME_MUTE)) { |
| Log.w(TAG, "Attempted to dispatch null or non-volume key event."); |
| return; |
| } |
| |
| final int pid = Binder.getCallingPid(); |
| final int uid = Binder.getCallingUid(); |
| final long token = Binder.clearCallingIdentity(); |
| |
| if (DEBUG_KEY_EVENT) { |
| Log.d(TAG, "dispatchVolumeKeyEvent, pid=" + pid + ", uid=" + uid + ", event=" |
| + keyEvent); |
| } |
| |
| try { |
| synchronized (mLock) { |
| if (isGlobalPriorityActiveLocked() |
| || mCurrentFullUserRecord.mOnVolumeKeyLongPressListener == null) { |
| dispatchVolumeKeyEventLocked(keyEvent, stream, musicOnly); |
| } else { |
| // TODO: Consider the case when both volume up and down keys are pressed |
| // at the same time. |
| if (keyEvent.getAction() == KeyEvent.ACTION_DOWN) { |
| if (keyEvent.getRepeatCount() == 0) { |
| // Keeps the copy of the KeyEvent because it can be reused. |
| mCurrentFullUserRecord.mInitialDownVolumeKeyEvent = |
| KeyEvent.obtain(keyEvent); |
| mCurrentFullUserRecord.mInitialDownVolumeStream = stream; |
| mCurrentFullUserRecord.mInitialDownMusicOnly = musicOnly; |
| mHandler.sendMessageDelayed( |
| mHandler.obtainMessage( |
| MessageHandler.MSG_VOLUME_INITIAL_DOWN, |
| mCurrentFullUserRecord.mFullUserId, 0), |
| mLongPressTimeout); |
| } |
| if (keyEvent.getRepeatCount() > 0 || keyEvent.isLongPress()) { |
| mHandler.removeMessages(MessageHandler.MSG_VOLUME_INITIAL_DOWN); |
| if (mCurrentFullUserRecord.mInitialDownVolumeKeyEvent != null) { |
| dispatchVolumeKeyLongPressLocked( |
| mCurrentFullUserRecord.mInitialDownVolumeKeyEvent); |
| // Mark that the key is already handled. |
| mCurrentFullUserRecord.mInitialDownVolumeKeyEvent = null; |
| } |
| dispatchVolumeKeyLongPressLocked(keyEvent); |
| } |
| } else { // if up |
| mHandler.removeMessages(MessageHandler.MSG_VOLUME_INITIAL_DOWN); |
| if (mCurrentFullUserRecord.mInitialDownVolumeKeyEvent != null |
| && mCurrentFullUserRecord.mInitialDownVolumeKeyEvent |
| .getDownTime() == keyEvent.getDownTime()) { |
| // Short-press. Should change volume. |
| dispatchVolumeKeyEventLocked( |
| mCurrentFullUserRecord.mInitialDownVolumeKeyEvent, |
| mCurrentFullUserRecord.mInitialDownVolumeStream, |
| mCurrentFullUserRecord.mInitialDownMusicOnly); |
| dispatchVolumeKeyEventLocked(keyEvent, stream, musicOnly); |
| } else { |
| dispatchVolumeKeyLongPressLocked(keyEvent); |
| } |
| } |
| } |
| } |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| private void dispatchVolumeKeyEventLocked( |
| KeyEvent keyEvent, int stream, boolean musicOnly) { |
| boolean down = keyEvent.getAction() == KeyEvent.ACTION_DOWN; |
| boolean up = keyEvent.getAction() == KeyEvent.ACTION_UP; |
| int direction = 0; |
| boolean isMute = false; |
| switch (keyEvent.getKeyCode()) { |
| case KeyEvent.KEYCODE_VOLUME_UP: |
| direction = AudioManager.ADJUST_RAISE; |
| break; |
| case KeyEvent.KEYCODE_VOLUME_DOWN: |
| direction = AudioManager.ADJUST_LOWER; |
| break; |
| case KeyEvent.KEYCODE_VOLUME_MUTE: |
| isMute = true; |
| break; |
| } |
| if (down || up) { |
| int flags = AudioManager.FLAG_FROM_KEY; |
| if (musicOnly) { |
| // This flag is used when the screen is off to only affect active media. |
| flags |= AudioManager.FLAG_ACTIVE_MEDIA_ONLY; |
| } else { |
| // These flags are consistent with the home screen |
| if (up) { |
| flags |= AudioManager.FLAG_PLAY_SOUND | AudioManager.FLAG_VIBRATE; |
| } else { |
| flags |= AudioManager.FLAG_SHOW_UI | AudioManager.FLAG_VIBRATE; |
| } |
| } |
| if (direction != 0) { |
| // If this is action up we want to send a beep for non-music events |
| if (up) { |
| direction = 0; |
| } |
| dispatchAdjustVolumeLocked(stream, direction, flags); |
| } else if (isMute) { |
| if (down && keyEvent.getRepeatCount() == 0) { |
| dispatchAdjustVolumeLocked(stream, AudioManager.ADJUST_TOGGLE_MUTE, flags); |
| } |
| } |
| } |
| } |
| |
| @Override |
| public void dispatchAdjustVolume(int suggestedStream, int delta, int flags) { |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| synchronized (mLock) { |
| dispatchAdjustVolumeLocked(suggestedStream, delta, flags); |
| } |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| @Override |
| public void setRemoteVolumeController(IRemoteVolumeController rvc) { |
| final int pid = Binder.getCallingPid(); |
| final int uid = Binder.getCallingUid(); |
| final long token = Binder.clearCallingIdentity(); |
| try { |
| enforceSystemUiPermission("listen for volume changes", pid, uid); |
| mRvc = rvc; |
| } finally { |
| Binder.restoreCallingIdentity(token); |
| } |
| } |
| |
| @Override |
| public boolean isGlobalPriorityActive() { |
| synchronized (mLock) { |
| return isGlobalPriorityActiveLocked(); |
| } |
| } |
| |
| @Override |
| public void dump(FileDescriptor fd, final PrintWriter pw, String[] args) { |
| if (!DumpUtils.checkDumpPermission(getContext(), TAG, pw)) return; |
| |
| pw.println("MEDIA SESSION SERVICE (dumpsys media_session)"); |
| pw.println(); |
| |
| synchronized (mLock) { |
| pw.println(mSessionsListeners.size() + " sessions listeners."); |
| pw.println("Global priority session is " + mGlobalPrioritySession); |
| if (mGlobalPrioritySession != null) { |
| mGlobalPrioritySession.dump(pw, " "); |
| } |
| pw.println("User Records:"); |
| int count = mUserRecords.size(); |
| for (int i = 0; i < count; i++) { |
| mUserRecords.valueAt(i).dumpLocked(pw, ""); |
| } |
| mAudioPlaybackMonitor.dump(pw, ""); |
| } |
| } |
| |
| private int verifySessionsRequest(ComponentName componentName, int userId, final int pid, |
| final int uid) { |
| String packageName = null; |
| if (componentName != null) { |
| // If they gave us a component name verify they own the |
| // package |
| packageName = componentName.getPackageName(); |
| enforcePackageName(packageName, uid); |
| } |
| // Check that they can make calls on behalf of the user and |
| // get the final user id |
| int resolvedUserId = ActivityManager.handleIncomingUser(pid, uid, userId, |
| true /* allowAll */, true /* requireFull */, "getSessions", packageName); |
| // Check if they have the permissions or their component is |
| // enabled for the user they're calling from. |
| enforceMediaPermissions(componentName, pid, uid, resolvedUserId); |
| return resolvedUserId; |
| } |
| |
| private void dispatchAdjustVolumeLocked(int suggestedStream, int direction, int flags) { |
| MediaSessionRecord session = isGlobalPriorityActiveLocked() ? mGlobalPrioritySession |
| : mCurrentFullUserRecord.mPriorityStack.getDefaultVolumeSession(); |
| |
| boolean preferSuggestedStream = false; |
| if (isValidLocalStreamType(suggestedStream) |
| && AudioSystem.isStreamActive(suggestedStream, 0)) { |
| preferSuggestedStream = true; |
| } |
| if (DEBUG_KEY_EVENT) { |
| Log.d(TAG, "Adjusting " + session + " by " + direction + ". flags=" |
| + flags + ", suggestedStream=" + suggestedStream |
| + ", preferSuggestedStream=" + preferSuggestedStream); |
| } |
| if (session == null || preferSuggestedStream) { |
| if ((flags & AudioManager.FLAG_ACTIVE_MEDIA_ONLY) != 0 |
| && !AudioSystem.isStreamActive(AudioManager.STREAM_MUSIC, 0)) { |
| if (DEBUG) { |
| Log.d(TAG, "No active session to adjust, skipping media only volume event"); |
| } |
| return; |
| } |
| |
| // Execute mAudioService.adjustSuggestedStreamVolume() on |
| // handler thread of MediaSessionService. |
| // This will release the MediaSessionService.mLock sooner and avoid |
| // a potential deadlock between MediaSessionService.mLock and |
| // ActivityManagerService lock. |
| mHandler.post(new Runnable() { |
| @Override |
| public void run() { |
| try { |
| String packageName = getContext().getOpPackageName(); |
| mAudioService.adjustSuggestedStreamVolume(direction, suggestedStream, |
| flags, packageName, TAG); |
| } catch (RemoteException e) { |
| Log.e(TAG, "Error adjusting default volume.", e); |
| } catch (IllegalArgumentException e) { |
| Log.e(TAG, "Cannot adjust volume: direction=" + direction |
| + ", suggestedStream=" + suggestedStream + ", flags=" + flags, |
| e); |
| } |
| } |
| }); |
| } else { |
| session.adjustVolume(direction, flags, getContext().getPackageName(), |
| Process.SYSTEM_UID, true); |
| } |
| } |
| |
| private void handleVoiceKeyEventLocked(KeyEvent keyEvent, boolean needWakeLock) { |
| int action = keyEvent.getAction(); |
| boolean isLongPress = (keyEvent.getFlags() & KeyEvent.FLAG_LONG_PRESS) != 0; |
| if (action == KeyEvent.ACTION_DOWN) { |
| if (keyEvent.getRepeatCount() == 0) { |
| mVoiceButtonDown = true; |
| mVoiceButtonHandled = false; |
| } else if (mVoiceButtonDown && !mVoiceButtonHandled && isLongPress) { |
| mVoiceButtonHandled = true; |
| startVoiceInput(needWakeLock); |
| } |
| } else if (action == KeyEvent.ACTION_UP) { |
| if (mVoiceButtonDown) { |
| mVoiceButtonDown = false; |
| if (!mVoiceButtonHandled && !keyEvent.isCanceled()) { |
| // Resend the down then send this event through |
| KeyEvent downEvent = KeyEvent.changeAction(keyEvent, KeyEvent.ACTION_DOWN); |
| dispatchMediaKeyEventLocked(downEvent, needWakeLock); |
| dispatchMediaKeyEventLocked(keyEvent, needWakeLock); |
| } |
| } |
| } |
| } |
| |
| private void dispatchMediaKeyEventLocked(KeyEvent keyEvent, boolean needWakeLock) { |
| MediaSessionRecord session = mCurrentFullUserRecord.getMediaButtonSessionLocked(); |
| if (session != null) { |
| if (DEBUG_KEY_EVENT) { |
| Log.d(TAG, "Sending " + keyEvent + " to " + session); |
| } |
| if (needWakeLock) { |
| mKeyEventReceiver.aquireWakeLockLocked(); |
| } |
| // If we don't need a wakelock use -1 as the id so we won't release it later. |
| session.sendMediaButton(keyEvent, |
| needWakeLock ? mKeyEventReceiver.mLastTimeoutId : -1, |
| mKeyEventReceiver, Process.SYSTEM_UID, |
| getContext().getPackageName()); |
| if (mCurrentFullUserRecord.mCallback != null) { |
| try { |
| mCurrentFullUserRecord.mCallback.onMediaKeyEventDispatchedToMediaSession( |
| keyEvent, |
| new MediaSession.Token(session.getControllerBinder())); |
| } catch (RemoteException e) { |
| Log.w(TAG, "Failed to send callback", e); |
| } |
| } |
| } else if (mCurrentFullUserRecord.mLastMediaButtonReceiver != null |
| || mCurrentFullUserRecord.mRestoredMediaButtonReceiver != null) { |
| if (needWakeLock) { |
| mKeyEventReceiver.aquireWakeLockLocked(); |
| } |
| Intent mediaButtonIntent = new Intent(Intent.ACTION_MEDIA_BUTTON); |
| mediaButtonIntent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND); |
| mediaButtonIntent.putExtra(Intent.EXTRA_KEY_EVENT, keyEvent); |
| try { |
| if (mCurrentFullUserRecord.mLastMediaButtonReceiver != null) { |
| PendingIntent receiver = mCurrentFullUserRecord.mLastMediaButtonReceiver; |
| if (DEBUG_KEY_EVENT) { |
| Log.d(TAG, "Sending " + keyEvent |
| + " to the last known PendingIntent " + receiver); |
| } |
| receiver.send(getContext(), |
| needWakeLock ? mKeyEventReceiver.mLastTimeoutId : -1, |
| mediaButtonIntent, mKeyEventReceiver, mHandler); |
| if (mCurrentFullUserRecord.mCallback != null) { |
| ComponentName componentName = mCurrentFullUserRecord |
| .mLastMediaButtonReceiver.getIntent().getComponent(); |
| if (componentName != null) { |
| mCurrentFullUserRecord.mCallback |
| .onMediaKeyEventDispatchedToMediaButtonReceiver( |
| keyEvent, componentName); |
| } |
| } |
| } else { |
| ComponentName receiver = |
| mCurrentFullUserRecord.mRestoredMediaButtonReceiver; |
| if (DEBUG_KEY_EVENT) { |
| Log.d(TAG, "Sending " + keyEvent + " to the restored intent " |
| + receiver); |
| } |
| mediaButtonIntent.setComponent(receiver); |
| getContext().sendBroadcastAsUser(mediaButtonIntent, |
| UserHandle.of(mCurrentFullUserRecord |
| .mRestoredMediaButtonReceiverUserId)); |
| if (mCurrentFullUserRecord.mCallback != null) { |
| mCurrentFullUserRecord.mCallback |
| .onMediaKeyEventDispatchedToMediaButtonReceiver( |
| keyEvent, receiver); |
| } |
| } |
| } catch (CanceledException e) { |
| Log.i(TAG, "Error sending key event to media button receiver " |
| + mCurrentFullUserRecord.mLastMediaButtonReceiver, e); |
| } catch (RemoteException e) { |
| Log.w(TAG, "Failed to send callback", e); |
| } |
| } |
| } |
| |
| private void startVoiceInput(boolean needWakeLock) { |
| Intent voiceIntent = null; |
| // select which type of search to launch: |
| // - screen on and device unlocked: action is ACTION_WEB_SEARCH |
| // - device locked or screen off: action is |
| // ACTION_VOICE_SEARCH_HANDS_FREE |
| // with EXTRA_SECURE set to true if the device is securely locked |
| PowerManager pm = (PowerManager) getContext().getSystemService(Context.POWER_SERVICE); |
| boolean isLocked = mKeyguardManager != null && mKeyguardManager.isKeyguardLocked(); |
| if (!isLocked && pm.isScreenOn()) { |
| voiceIntent = new Intent(android.speech.RecognizerIntent.ACTION_WEB_SEARCH); |
| Log.i(TAG, "voice-based interactions: about to use ACTION_WEB_SEARCH"); |
| } else { |
| voiceIntent = new Intent(RecognizerIntent.ACTION_VOICE_SEARCH_HANDS_FREE); |
| voiceIntent.putExtra(RecognizerIntent.EXTRA_SECURE, |
| isLocked && mKeyguardManager.isKeyguardSecure()); |
| Log.i(TAG, "voice-based interactions: about to use ACTION_VOICE_SEARCH_HANDS_FREE"); |
| } |
| // start the search activity |
| if (needWakeLock) { |
| mMediaEventWakeLock.acquire(); |
| } |
| try { |
| if (voiceIntent != null) { |
| voiceIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
| | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); |
| if (DEBUG) Log.d(TAG, "voiceIntent: " + voiceIntent); |
| getContext().startActivityAsUser(voiceIntent, UserHandle.CURRENT); |
| } |
| } catch (ActivityNotFoundException e) { |
| Log.w(TAG, "No activity for search: " + e); |
| } finally { |
| if (needWakeLock) { |
| mMediaEventWakeLock.release(); |
| } |
| } |
| } |
| |
| private boolean isVoiceKey(int keyCode) { |
| return keyCode == KeyEvent.KEYCODE_HEADSETHOOK |
| || (!mHasFeatureLeanback && keyCode == KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE); |
| } |
| |
| private boolean isUserSetupComplete() { |
| return Settings.Secure.getIntForUser(getContext().getContentResolver(), |
| Settings.Secure.USER_SETUP_COMPLETE, 0, UserHandle.USER_CURRENT) != 0; |
| } |
| |
| // we only handle public stream types, which are 0-5 |
| private boolean isValidLocalStreamType(int streamType) { |
| return streamType >= AudioManager.STREAM_VOICE_CALL |
| && streamType <= AudioManager.STREAM_NOTIFICATION; |
| } |
| |
| private class MediaKeyListenerResultReceiver extends ResultReceiver implements Runnable { |
| private KeyEvent mKeyEvent; |
| private boolean mNeedWakeLock; |
| private boolean mHandled; |
| |
| private MediaKeyListenerResultReceiver(KeyEvent keyEvent, boolean needWakeLock) { |
| super(mHandler); |
| mHandler.postDelayed(this, MEDIA_KEY_LISTENER_TIMEOUT); |
| mKeyEvent = keyEvent; |
| mNeedWakeLock = needWakeLock; |
| } |
| |
| @Override |
| public void run() { |
| Log.d(TAG, "The media key listener is timed-out for " + mKeyEvent); |
| dispatchMediaKeyEvent(); |
| } |
| |
| @Override |
| protected void onReceiveResult(int resultCode, Bundle resultData) { |
| if (resultCode == MediaSessionManager.RESULT_MEDIA_KEY_HANDLED) { |
| mHandled = true; |
| mHandler.removeCallbacks(this); |
| return; |
| } |
| dispatchMediaKeyEvent(); |
| } |
| |
| private void dispatchMediaKeyEvent() { |
| if (mHandled) { |
| return; |
| } |
| mHandled = true; |
| mHandler.removeCallbacks(this); |
| synchronized (mLock) { |
| if (!isGlobalPriorityActiveLocked() |
| && isVoiceKey(mKeyEvent.getKeyCode())) { |
| handleVoiceKeyEventLocked(mKeyEvent, mNeedWakeLock); |
| } else { |
| dispatchMediaKeyEventLocked(mKeyEvent, mNeedWakeLock); |
| } |
| } |
| } |
| } |
| |
| private KeyEventWakeLockReceiver mKeyEventReceiver = new KeyEventWakeLockReceiver(mHandler); |
| |
| class KeyEventWakeLockReceiver extends ResultReceiver implements Runnable, |
| PendingIntent.OnFinished { |
| private final Handler mHandler; |
| private int mRefCount = 0; |
| private int mLastTimeoutId = 0; |
| |
| public KeyEventWakeLockReceiver(Handler handler) { |
| super(handler); |
| mHandler = handler; |
| } |
| |
| public void onTimeout() { |
| synchronized (mLock) { |
| if (mRefCount == 0) { |
| // We've already released it, so just return |
| return; |
| } |
| mLastTimeoutId++; |
| mRefCount = 0; |
| releaseWakeLockLocked(); |
| } |
| } |
| |
| public void aquireWakeLockLocked() { |
| if (mRefCount == 0) { |
| mMediaEventWakeLock.acquire(); |
| } |
| mRefCount++; |
| mHandler.removeCallbacks(this); |
| mHandler.postDelayed(this, WAKELOCK_TIMEOUT); |
| |
| } |
| |
| @Override |
| public void run() { |
| onTimeout(); |
| } |
| |
| @Override |
| protected void onReceiveResult(int resultCode, Bundle resultData) { |
| if (resultCode < mLastTimeoutId) { |
| // Ignore results from calls that were before the last |
| // timeout, just in case. |
| return; |
| } else { |
| synchronized (mLock) { |
| if (mRefCount > 0) { |
| mRefCount--; |
| if (mRefCount == 0) { |
| releaseWakeLockLocked(); |
| } |
| } |
| } |
| } |
| } |
| |
| private void releaseWakeLockLocked() { |
| mMediaEventWakeLock.release(); |
| mHandler.removeCallbacks(this); |
| } |
| |
| @Override |
| public void onSendFinished(PendingIntent pendingIntent, Intent intent, int resultCode, |
| String resultData, Bundle resultExtras) { |
| onReceiveResult(resultCode, null); |
| } |
| }; |
| |
| BroadcastReceiver mKeyEventDone = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| if (intent == null) { |
| return; |
| } |
| Bundle extras = intent.getExtras(); |
| if (extras == null) { |
| return; |
| } |
| synchronized (mLock) { |
| if (extras.containsKey(EXTRA_WAKELOCK_ACQUIRED) |
| && mMediaEventWakeLock.isHeld()) { |
| mMediaEventWakeLock.release(); |
| } |
| } |
| } |
| }; |
| } |
| |
| final class MessageHandler extends Handler { |
| private static final int MSG_SESSIONS_CHANGED = 1; |
| private static final int MSG_VOLUME_INITIAL_DOWN = 2; |
| private final SparseArray<Integer> mIntegerCache = new SparseArray<>(); |
| |
| @Override |
| public void handleMessage(Message msg) { |
| switch (msg.what) { |
| case MSG_SESSIONS_CHANGED: |
| pushSessionsChanged((int) msg.obj); |
| break; |
| case MSG_VOLUME_INITIAL_DOWN: |
| synchronized (mLock) { |
| FullUserRecord user = mUserRecords.get((int) msg.arg1); |
| if (user != null && user.mInitialDownVolumeKeyEvent != null) { |
| dispatchVolumeKeyLongPressLocked(user.mInitialDownVolumeKeyEvent); |
| // Mark that the key is already handled. |
| user.mInitialDownVolumeKeyEvent = null; |
| } |
| } |
| break; |
| } |
| } |
| |
| public void postSessionsChanged(int userId) { |
| // Use object instead of the arguments when posting message to remove pending requests. |
| Integer userIdInteger = mIntegerCache.get(userId); |
| if (userIdInteger == null) { |
| userIdInteger = Integer.valueOf(userId); |
| mIntegerCache.put(userId, userIdInteger); |
| } |
| removeMessages(MSG_SESSIONS_CHANGED, userIdInteger); |
| obtainMessage(MSG_SESSIONS_CHANGED, userIdInteger).sendToTarget(); |
| } |
| } |
| } |
