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
17package com.android.settingslib.bluetooth;
18
19import android.bluetooth.BluetoothA2dpSink;
20import android.bluetooth.BluetoothAdapter;
21import android.bluetooth.BluetoothClass;
22import android.bluetooth.BluetoothDevice;
23import android.bluetooth.BluetoothProfile;
24import android.bluetooth.BluetoothUuid;
25import android.content.Context;
26import android.os.ParcelUuid;
27import android.util.Log;
28
29import com.android.settingslib.R;
30
31import java.util.ArrayList;
32import java.util.List;
33
34final 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