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      1 /*
      2  * Copyright (C) 2016 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.BluetoothPbapClient;
     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.Collection;
     33 import java.util.List;
     34 
     35 final class PbapClientProfile implements LocalBluetoothProfile {
     36     private static final String TAG = "PbapClientProfile";
     37     private static boolean V = false;
     38 
     39     private BluetoothPbapClient mService;
     40     private boolean mIsProfileReady;
     41 
     42     private final LocalBluetoothAdapter mLocalAdapter;
     43     private final CachedBluetoothDeviceManager mDeviceManager;
     44 
     45     static final ParcelUuid[] SRC_UUIDS = {
     46         BluetoothUuid.PBAP_PSE,
     47     };
     48 
     49     static final String NAME = "PbapClient";
     50     private final LocalBluetoothProfileManager mProfileManager;
     51 
     52     // Order of this profile in device profiles list
     53     private static final int ORDINAL = 6;
     54 
     55     // These callbacks run on the main thread.
     56     private final class PbapClientServiceListener
     57             implements BluetoothProfile.ServiceListener {
     58 
     59         public void onServiceConnected(int profile, BluetoothProfile proxy) {
     60             if (V) {
     61                 Log.d(TAG,"Bluetooth service connected");
     62             }
     63             mService = (BluetoothPbapClient) proxy;
     64             // We just bound to the service, so refresh the UI for any connected PBAP devices.
     65             List<BluetoothDevice> deviceList = mService.getConnectedDevices();
     66             while (!deviceList.isEmpty()) {
     67                 BluetoothDevice nextDevice = deviceList.remove(0);
     68                 CachedBluetoothDevice device = mDeviceManager.findDevice(nextDevice);
     69                 // we may add a new device here, but generally this should not happen
     70                 if (device == null) {
     71                     Log.w(TAG, "PbapClientProfile found new device: " + nextDevice);
     72                     device = mDeviceManager.addDevice(mLocalAdapter, mProfileManager, nextDevice);
     73                 }
     74                 device.onProfileStateChanged(PbapClientProfile.this, BluetoothProfile.STATE_CONNECTED);
     75                 device.refresh();
     76             }
     77             mIsProfileReady = true;
     78         }
     79 
     80         public void onServiceDisconnected(int profile) {
     81             if (V) {
     82                 Log.d(TAG,"Bluetooth service disconnected");
     83             }
     84             mIsProfileReady = false;
     85         }
     86     }
     87 
     88     private void refreshProfiles() {
     89         Collection<CachedBluetoothDevice> cachedDevices = mDeviceManager.getCachedDevicesCopy();
     90         for (CachedBluetoothDevice device : cachedDevices) {
     91             device.onUuidChanged();
     92         }
     93     }
     94 
     95     public boolean pbapClientExists() {
     96         return (mService != null);
     97     }
     98 
     99     public boolean isProfileReady() {
    100         return mIsProfileReady;
    101     }
    102 
    103     PbapClientProfile(Context context, LocalBluetoothAdapter adapter,
    104             CachedBluetoothDeviceManager deviceManager,
    105             LocalBluetoothProfileManager profileManager) {
    106         mLocalAdapter = adapter;
    107         mDeviceManager = deviceManager;
    108         mProfileManager = profileManager;
    109         mLocalAdapter.getProfileProxy(context, new PbapClientServiceListener(),
    110                 BluetoothProfile.PBAP_CLIENT);
    111     }
    112 
    113     public boolean isConnectable() {
    114         return true;
    115     }
    116 
    117     public boolean isAutoConnectable() {
    118         return true;
    119     }
    120 
    121     public List<BluetoothDevice> getConnectedDevices() {
    122         if (mService == null) {
    123             return new ArrayList<BluetoothDevice>(0);
    124         }
    125         return mService.getDevicesMatchingConnectionStates(
    126               new int[] {BluetoothProfile.STATE_CONNECTED,
    127                          BluetoothProfile.STATE_CONNECTING,
    128                          BluetoothProfile.STATE_DISCONNECTING});
    129     }
    130 
    131     public boolean connect(BluetoothDevice device) {
    132         if (V) {
    133             Log.d(TAG,"PBAPClientProfile got connect request");
    134         }
    135         if (mService == null) {
    136             return false;
    137         }
    138         List<BluetoothDevice> srcs = getConnectedDevices();
    139         if (srcs != null) {
    140             for (BluetoothDevice src : srcs) {
    141                 if (src.equals(device)) {
    142                     // Connect to same device, Ignore it
    143                     Log.d(TAG,"Ignoring Connect");
    144                     return true;
    145                 }
    146             }
    147             for (BluetoothDevice src : srcs) {
    148                 mService.disconnect(device);
    149             }
    150         }
    151         Log.d(TAG,"PBAPClientProfile attempting to connect to " + device.getAddress());
    152 
    153         return mService.connect(device);
    154     }
    155 
    156     public boolean disconnect(BluetoothDevice device) {
    157         if (V) {
    158             Log.d(TAG,"PBAPClientProfile got disconnect request");
    159         }
    160         if (mService == null) {
    161             return false;
    162         }
    163         return mService.disconnect(device);
    164     }
    165 
    166     public int getConnectionStatus(BluetoothDevice device) {
    167         if (mService == null) {
    168             return BluetoothProfile.STATE_DISCONNECTED;
    169         }
    170         return mService.getConnectionState(device);
    171     }
    172 
    173     public boolean isPreferred(BluetoothDevice device) {
    174         if (mService == null) {
    175             return false;
    176         }
    177         return mService.getPriority(device) > BluetoothProfile.PRIORITY_OFF;
    178     }
    179 
    180     public int getPreferred(BluetoothDevice device) {
    181         if (mService == null) {
    182             return BluetoothProfile.PRIORITY_OFF;
    183         }
    184         return mService.getPriority(device);
    185     }
    186 
    187     public void setPreferred(BluetoothDevice device, boolean preferred) {
    188         if (mService == null) {
    189             return;
    190         }
    191         if (preferred) {
    192             if (mService.getPriority(device) < BluetoothProfile.PRIORITY_ON) {
    193                 mService.setPriority(device, BluetoothProfile.PRIORITY_ON);
    194             }
    195         } else {
    196             mService.setPriority(device, BluetoothProfile.PRIORITY_OFF);
    197         }
    198     }
    199 
    200     public String toString() {
    201         return NAME;
    202     }
    203 
    204     public int getOrdinal() {
    205         return ORDINAL;
    206     }
    207 
    208     public int getNameResource(BluetoothDevice device) {
    209         // we need to have same string in UI as the server side.
    210         return R.string.bluetooth_profile_pbap;
    211     }
    212 
    213     public int getSummaryResourceForDevice(BluetoothDevice device) {
    214         return R.string.bluetooth_profile_pbap_summary;
    215     }
    216 
    217     public int getDrawableResource(BluetoothClass btClass) {
    218         return R.drawable.ic_bt_cellphone;
    219     }
    220 
    221     protected void finalize() {
    222         if (V) {
    223             Log.d(TAG, "finalize()");
    224         }
    225         if (mService != null) {
    226             try {
    227                 BluetoothAdapter.getDefaultAdapter().closeProfileProxy(
    228                     BluetoothProfile.PBAP_CLIENT,mService);
    229                 mService = null;
    230             } catch (Throwable t) {
    231                 Log.w(TAG, "Error cleaning up PBAP Client proxy", t);
    232             }
    233         }
    234     }
    235 }
    236