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      1 /*
      2  * Copyright (C) 2015 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.settingslib.bluetooth;
     18 
     19 import android.bluetooth.BluetoothA2dpSink;
     20 import android.bluetooth.BluetoothAdapter;
     21 import android.bluetooth.BluetoothClass;
     22 import android.bluetooth.BluetoothDevice;
     23 import android.bluetooth.BluetoothProfile;
     24 import android.bluetooth.BluetoothUuid;
     25 import android.content.Context;
     26 import android.os.ParcelUuid;
     27 import android.util.Log;
     28 
     29 import com.android.settingslib.R;
     30 
     31 import java.util.ArrayList;
     32 import java.util.List;
     33 
     34 final class A2dpSinkProfile implements LocalBluetoothProfile {
     35     private static final String TAG = "A2dpSinkProfile";
     36     private static boolean V = true;
     37 
     38     private BluetoothA2dpSink mService;
     39     private boolean mIsProfileReady;
     40 
     41     private final LocalBluetoothAdapter mLocalAdapter;
     42     private final CachedBluetoothDeviceManager mDeviceManager;
     43 
     44     static final ParcelUuid[] SRC_UUIDS = {
     45         BluetoothUuid.AudioSource,
     46         BluetoothUuid.AdvAudioDist,
     47     };
     48 
     49     static final String NAME = "A2DPSink";
     50     private final LocalBluetoothProfileManager mProfileManager;
     51 
     52     // Order of this profile in device profiles list
     53     private static final int ORDINAL = 5;
     54 
     55     // These callbacks run on the main thread.
     56     private final class A2dpSinkServiceListener
     57             implements BluetoothProfile.ServiceListener {
     58 
     59         public void onServiceConnected(int profile, BluetoothProfile proxy) {
     60             if (V) Log.d(TAG,"Bluetooth service connected");
     61             mService = (BluetoothA2dpSink) proxy;
     62             // We just bound to the service, so refresh the UI for any connected A2DP devices.
     63             List<BluetoothDevice> deviceList = mService.getConnectedDevices();
     64             while (!deviceList.isEmpty()) {
     65                 BluetoothDevice nextDevice = deviceList.remove(0);
     66                 CachedBluetoothDevice device = mDeviceManager.findDevice(nextDevice);
     67                 // we may add a new device here, but generally this should not happen
     68                 if (device == null) {
     69                     Log.w(TAG, "A2dpSinkProfile found new device: " + nextDevice);
     70                     device = mDeviceManager.addDevice(mLocalAdapter, mProfileManager, nextDevice);
     71                 }
     72                 device.onProfileStateChanged(A2dpSinkProfile.this, BluetoothProfile.STATE_CONNECTED);
     73                 device.refresh();
     74             }
     75             mIsProfileReady=true;
     76         }
     77 
     78         public void onServiceDisconnected(int profile) {
     79             if (V) Log.d(TAG,"Bluetooth service disconnected");
     80             mIsProfileReady=false;
     81         }
     82     }
     83 
     84     public boolean isProfileReady() {
     85         return mIsProfileReady;
     86     }
     87 
     88     A2dpSinkProfile(Context context, LocalBluetoothAdapter adapter,
     89             CachedBluetoothDeviceManager deviceManager,
     90             LocalBluetoothProfileManager profileManager) {
     91         mLocalAdapter = adapter;
     92         mDeviceManager = deviceManager;
     93         mProfileManager = profileManager;
     94         mLocalAdapter.getProfileProxy(context, new A2dpSinkServiceListener(),
     95                 BluetoothProfile.A2DP_SINK);
     96     }
     97 
     98     public boolean isConnectable() {
     99         return true;
    100     }
    101 
    102     public boolean isAutoConnectable() {
    103         return true;
    104     }
    105 
    106     public List<BluetoothDevice> getConnectedDevices() {
    107         if (mService == null) return new ArrayList<BluetoothDevice>(0);
    108         return mService.getDevicesMatchingConnectionStates(
    109               new int[] {BluetoothProfile.STATE_CONNECTED,
    110                          BluetoothProfile.STATE_CONNECTING,
    111                          BluetoothProfile.STATE_DISCONNECTING});
    112     }
    113 
    114     public boolean connect(BluetoothDevice device) {
    115         if (mService == null) return false;
    116         List<BluetoothDevice> srcs = getConnectedDevices();
    117         if (srcs != null) {
    118             for (BluetoothDevice src : srcs) {
    119                 if (src.equals(device)) {
    120                     // Connect to same device, Ignore it
    121                     Log.d(TAG,"Ignoring Connect");
    122                     return true;
    123                 }
    124             }
    125         }
    126         return mService.connect(device);
    127     }
    128 
    129     public boolean disconnect(BluetoothDevice device) {
    130         if (mService == null) return false;
    131         // Downgrade priority as user is disconnecting the headset.
    132         if (mService.getPriority(device) > BluetoothProfile.PRIORITY_ON){
    133             mService.setPriority(device, BluetoothProfile.PRIORITY_ON);
    134         }
    135         return mService.disconnect(device);
    136     }
    137 
    138     public int getConnectionStatus(BluetoothDevice device) {
    139         if (mService == null) {
    140             return BluetoothProfile.STATE_DISCONNECTED;
    141         }
    142         return mService.getConnectionState(device);
    143     }
    144 
    145     public boolean isPreferred(BluetoothDevice device) {
    146         if (mService == null) return false;
    147         return mService.getPriority(device) > BluetoothProfile.PRIORITY_OFF;
    148     }
    149 
    150     public int getPreferred(BluetoothDevice device) {
    151         if (mService == null) return BluetoothProfile.PRIORITY_OFF;
    152         return mService.getPriority(device);
    153     }
    154 
    155     public void setPreferred(BluetoothDevice device, boolean preferred) {
    156         if (mService == null) return;
    157         if (preferred) {
    158             if (mService.getPriority(device) < BluetoothProfile.PRIORITY_ON) {
    159                 mService.setPriority(device, BluetoothProfile.PRIORITY_ON);
    160             }
    161         } else {
    162             mService.setPriority(device, BluetoothProfile.PRIORITY_OFF);
    163         }
    164     }
    165 
    166     boolean isA2dpPlaying() {
    167         if (mService == null) return false;
    168         List<BluetoothDevice> srcs = mService.getConnectedDevices();
    169         if (!srcs.isEmpty()) {
    170             if (mService.isA2dpPlaying(srcs.get(0))) {
    171                 return true;
    172             }
    173         }
    174         return false;
    175     }
    176 
    177     public String toString() {
    178         return NAME;
    179     }
    180 
    181     public int getOrdinal() {
    182         return ORDINAL;
    183     }
    184 
    185     public int getNameResource(BluetoothDevice device) {
    186         // we need to have same string in UI for even SINK Media Audio.
    187         return R.string.bluetooth_profile_a2dp;
    188     }
    189 
    190     public int getSummaryResourceForDevice(BluetoothDevice device) {
    191         int state = getConnectionStatus(device);
    192         switch (state) {
    193             case BluetoothProfile.STATE_DISCONNECTED:
    194                 return R.string.bluetooth_a2dp_profile_summary_use_for;
    195 
    196             case BluetoothProfile.STATE_CONNECTED:
    197                 return R.string.bluetooth_a2dp_profile_summary_connected;
    198 
    199             default:
    200                 return Utils.getConnectionStateSummary(state);
    201         }
    202     }
    203 
    204     public int getDrawableResource(BluetoothClass btClass) {
    205         return R.drawable.ic_bt_headphones_a2dp;
    206     }
    207 
    208     protected void finalize() {
    209         if (V) Log.d(TAG, "finalize()");
    210         if (mService != null) {
    211             try {
    212                 BluetoothAdapter.getDefaultAdapter().closeProfileProxy(BluetoothProfile.A2DP_SINK,
    213                                                                        mService);
    214                 mService = null;
    215             }catch (Throwable t) {
    216                 Log.w(TAG, "Error cleaning up A2DP proxy", t);
    217             }
    218         }
    219     }
    220 }
    221