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    @Override
89    public int getProfileId() {
90        return BluetoothProfile.A2DP_SINK;
91    }
92
93    A2dpSinkProfile(Context context, LocalBluetoothAdapter adapter,
94            CachedBluetoothDeviceManager deviceManager,
95            LocalBluetoothProfileManager profileManager) {
96        mLocalAdapter = adapter;
97        mDeviceManager = deviceManager;
98        mProfileManager = profileManager;
99        mLocalAdapter.getProfileProxy(context, new A2dpSinkServiceListener(),
100                BluetoothProfile.A2DP_SINK);
101    }
102
103    public boolean isConnectable() {
104        return true;
105    }
106
107    public boolean isAutoConnectable() {
108        return true;
109    }
110
111    public List<BluetoothDevice> getConnectedDevices() {
112        if (mService == null) return new ArrayList<BluetoothDevice>(0);
113        return mService.getDevicesMatchingConnectionStates(
114              new int[] {BluetoothProfile.STATE_CONNECTED,
115                         BluetoothProfile.STATE_CONNECTING,
116                         BluetoothProfile.STATE_DISCONNECTING});
117    }
118
119    public boolean connect(BluetoothDevice device) {
120        if (mService == null) return false;
121        List<BluetoothDevice> srcs = getConnectedDevices();
122        if (srcs != null) {
123            for (BluetoothDevice src : srcs) {
124                if (src.equals(device)) {
125                    // Connect to same device, Ignore it
126                    Log.d(TAG,"Ignoring Connect");
127                    return true;
128                }
129            }
130        }
131        return mService.connect(device);
132    }
133
134    public boolean disconnect(BluetoothDevice device) {
135        if (mService == null) return false;
136        // Downgrade priority as user is disconnecting the headset.
137        if (mService.getPriority(device) > BluetoothProfile.PRIORITY_ON){
138            mService.setPriority(device, BluetoothProfile.PRIORITY_ON);
139        }
140        return mService.disconnect(device);
141    }
142
143    public int getConnectionStatus(BluetoothDevice device) {
144        if (mService == null) {
145            return BluetoothProfile.STATE_DISCONNECTED;
146        }
147        return mService.getConnectionState(device);
148    }
149
150    public boolean isPreferred(BluetoothDevice device) {
151        if (mService == null) return false;
152        return mService.getPriority(device) > BluetoothProfile.PRIORITY_OFF;
153    }
154
155    public int getPreferred(BluetoothDevice device) {
156        if (mService == null) return BluetoothProfile.PRIORITY_OFF;
157        return mService.getPriority(device);
158    }
159
160    public void setPreferred(BluetoothDevice device, boolean preferred) {
161        if (mService == null) return;
162        if (preferred) {
163            if (mService.getPriority(device) < BluetoothProfile.PRIORITY_ON) {
164                mService.setPriority(device, BluetoothProfile.PRIORITY_ON);
165            }
166        } else {
167            mService.setPriority(device, BluetoothProfile.PRIORITY_OFF);
168        }
169    }
170
171    boolean isA2dpPlaying() {
172        if (mService == null) return false;
173        List<BluetoothDevice> srcs = mService.getConnectedDevices();
174        if (!srcs.isEmpty()) {
175            if (mService.isA2dpPlaying(srcs.get(0))) {
176                return true;
177            }
178        }
179        return false;
180    }
181
182    public String toString() {
183        return NAME;
184    }
185
186    public int getOrdinal() {
187        return ORDINAL;
188    }
189
190    public int getNameResource(BluetoothDevice device) {
191        // we need to have same string in UI for even SINK Media Audio.
192        return R.string.bluetooth_profile_a2dp;
193    }
194
195    public int getSummaryResourceForDevice(BluetoothDevice device) {
196        int state = getConnectionStatus(device);
197        switch (state) {
198            case BluetoothProfile.STATE_DISCONNECTED:
199                return R.string.bluetooth_a2dp_profile_summary_use_for;
200
201            case BluetoothProfile.STATE_CONNECTED:
202                return R.string.bluetooth_a2dp_profile_summary_connected;
203
204            default:
205                return Utils.getConnectionStateSummary(state);
206        }
207    }
208
209    public int getDrawableResource(BluetoothClass btClass) {
210        return R.drawable.ic_bt_headphones_a2dp;
211    }
212
213    protected void finalize() {
214        if (V) Log.d(TAG, "finalize()");
215        if (mService != null) {
216            try {
217                BluetoothAdapter.getDefaultAdapter().closeProfileProxy(BluetoothProfile.A2DP_SINK,
218                                                                       mService);
219                mService = null;
220            }catch (Throwable t) {
221                Log.w(TAG, "Error cleaning up A2DP proxy", t);
222            }
223        }
224    }
225}
226