1 /* 2 * Copyright (C) 2012 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.android.systemui.media; 18 19 import android.content.Context; 20 import android.content.pm.PackageManager.NameNotFoundException; 21 import android.media.IAudioService; 22 import android.media.IRingtonePlayer; 23 import android.media.Ringtone; 24 import android.net.Uri; 25 import android.os.Binder; 26 import android.os.IBinder; 27 import android.os.Process; 28 import android.os.RemoteException; 29 import android.os.ServiceManager; 30 import android.os.UserHandle; 31 import android.util.Log; 32 33 import com.android.systemui.SystemUI; 34 35 import java.io.FileDescriptor; 36 import java.io.PrintWriter; 37 import java.util.HashMap; 38 39 /** 40 * Service that offers to play ringtones by {@link Uri}, since our process has 41 * {@link android.Manifest.permission#READ_EXTERNAL_STORAGE}. 42 */ 43 public class RingtonePlayer extends SystemUI { 44 private static final String TAG = "RingtonePlayer"; 45 private static final boolean LOGD = false; 46 47 // TODO: support Uri switching under same IBinder 48 49 private IAudioService mAudioService; 50 51 private final NotificationPlayer mAsyncPlayer = new NotificationPlayer(TAG); 52 private final HashMap<IBinder, Client> mClients = new HashMap<IBinder, Client>(); 53 54 @Override 55 public void start() { 56 mAsyncPlayer.setUsesWakeLock(mContext); 57 58 mAudioService = IAudioService.Stub.asInterface( 59 ServiceManager.getService(Context.AUDIO_SERVICE)); 60 try { 61 mAudioService.setRingtonePlayer(mCallback); 62 } catch (RemoteException e) { 63 Log.e(TAG, "Problem registering RingtonePlayer: " + e); 64 } 65 } 66 67 /** 68 * Represents an active remote {@link Ringtone} client. 69 */ 70 private class Client implements IBinder.DeathRecipient { 71 private final IBinder mToken; 72 private final Ringtone mRingtone; 73 74 public Client(IBinder token, Uri uri, UserHandle user, int streamType) { 75 mToken = token; 76 77 mRingtone = new Ringtone(getContextForUser(user), false); 78 mRingtone.setStreamType(streamType); 79 mRingtone.setUri(uri); 80 } 81 82 @Override 83 public void binderDied() { 84 if (LOGD) Log.d(TAG, "binderDied() token=" + mToken); 85 synchronized (mClients) { 86 mClients.remove(mToken); 87 } 88 mRingtone.stop(); 89 } 90 } 91 92 private IRingtonePlayer mCallback = new IRingtonePlayer.Stub() { 93 @Override 94 public void play(IBinder token, Uri uri, int streamType) throws RemoteException { 95 if (LOGD) { 96 Log.d(TAG, "play(token=" + token + ", uri=" + uri + ", uid=" 97 + Binder.getCallingUid() + ")"); 98 } 99 Client client; 100 synchronized (mClients) { 101 client = mClients.get(token); 102 if (client == null) { 103 final UserHandle user = Binder.getCallingUserHandle(); 104 client = new Client(token, uri, user, streamType); 105 token.linkToDeath(client, 0); 106 mClients.put(token, client); 107 } 108 } 109 client.mRingtone.play(); 110 } 111 112 @Override 113 public void stop(IBinder token) { 114 if (LOGD) Log.d(TAG, "stop(token=" + token + ")"); 115 Client client; 116 synchronized (mClients) { 117 client = mClients.remove(token); 118 } 119 if (client != null) { 120 client.mToken.unlinkToDeath(client, 0); 121 client.mRingtone.stop(); 122 } 123 } 124 125 @Override 126 public boolean isPlaying(IBinder token) { 127 if (LOGD) Log.d(TAG, "isPlaying(token=" + token + ")"); 128 Client client; 129 synchronized (mClients) { 130 client = mClients.get(token); 131 } 132 if (client != null) { 133 return client.mRingtone.isPlaying(); 134 } else { 135 return false; 136 } 137 } 138 139 @Override 140 public void playAsync(Uri uri, UserHandle user, boolean looping, int streamType) { 141 if (LOGD) Log.d(TAG, "playAsync(uri=" + uri + ", user=" + user + ")"); 142 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 143 throw new SecurityException("Async playback only available from system UID."); 144 } 145 146 mAsyncPlayer.play(getContextForUser(user), uri, looping, streamType); 147 } 148 149 @Override 150 public void stopAsync() { 151 if (LOGD) Log.d(TAG, "stopAsync()"); 152 if (Binder.getCallingUid() != Process.SYSTEM_UID) { 153 throw new SecurityException("Async playback only available from system UID."); 154 } 155 mAsyncPlayer.stop(); 156 } 157 }; 158 159 private Context getContextForUser(UserHandle user) { 160 try { 161 return mContext.createPackageContextAsUser(mContext.getPackageName(), 0, user); 162 } catch (NameNotFoundException e) { 163 throw new RuntimeException(e); 164 } 165 } 166 167 @Override 168 public void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 169 pw.println("Clients:"); 170 synchronized (mClients) { 171 for (Client client : mClients.values()) { 172 pw.print(" mToken="); 173 pw.print(client.mToken); 174 pw.print(" mUri="); 175 pw.println(client.mRingtone.getUri()); 176 } 177 } 178 } 179 } 180
