LocalBluetoothProfileManager.java revision a41e2f94b792e44872be87f40fce182e6b39f4ba 
1/*
2 * Copyright (C) 2008 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.settings.bluetooth;
18
19import android.bluetooth.BluetoothA2dp;
20import android.bluetooth.BluetoothDevice;
21import android.bluetooth.BluetoothClass;
22import android.bluetooth.BluetoothError;
23import android.bluetooth.BluetoothHeadset;
24import android.os.Handler;
25import android.text.TextUtils;
26
27import com.android.settings.R;
28
29import java.util.HashMap;
30import java.util.List;
31import java.util.Map;
32import java.util.Set;
33
34/**
35 * LocalBluetoothProfileManager is an abstract class defining the basic
36 * functionality related to a profile.
37 */
38public abstract class LocalBluetoothProfileManager {
39
40    // TODO: close profiles when we're shutting down
41    private static Map<Profile, LocalBluetoothProfileManager> sProfileMap =
42            new HashMap<Profile, LocalBluetoothProfileManager>();
43
44    protected LocalBluetoothManager mLocalManager;
45
46    public static LocalBluetoothProfileManager getProfileManager(LocalBluetoothManager localManager,
47            Profile profile) {
48
49        LocalBluetoothProfileManager profileManager;
50
51        synchronized (sProfileMap) {
52            profileManager = sProfileMap.get(profile);
53
54            if (profileManager == null) {
55                switch (profile) {
56                case A2DP:
57                    profileManager = new A2dpProfileManager(localManager);
58                    break;
59
60                case HEADSET:
61                    profileManager = new HeadsetProfileManager(localManager);
62                    break;
63
64                case OPP:
65                    profileManager = new OppProfileManager(localManager);
66                    break;
67                }
68
69                sProfileMap.put(profile, profileManager);
70            }
71        }
72
73        return profileManager;
74    }
75
76    /**
77     * Temporary method to fill profiles based on a device's class.
78     *
79     * NOTE: This list happens to define the connection order. We should put this logic in a more
80     * well known place when this method is no longer temporary.
81     *
82     * @param btClass The class
83     * @param profiles The list of profiles to fill
84     */
85    public static void fill(int btClass, List<Profile> profiles) {
86        profiles.clear();
87
88        if (BluetoothClass.doesClassMatch(btClass, BluetoothClass.PROFILE_HEADSET)) {
89            profiles.add(Profile.HEADSET);
90        }
91
92        if (BluetoothClass.doesClassMatch(btClass, BluetoothClass.PROFILE_A2DP)) {
93            profiles.add(Profile.A2DP);
94        }
95
96        if (BluetoothClass.doesClassMatch(btClass, BluetoothClass.PROFILE_OPP)) {
97            profiles.add(Profile.OPP);
98        }
99    }
100
101    protected LocalBluetoothProfileManager(LocalBluetoothManager localManager) {
102        mLocalManager = localManager;
103    }
104
105    public abstract int connect(BluetoothDevice device);
106
107    public abstract int disconnect(BluetoothDevice device);
108
109    public abstract int getConnectionStatus(BluetoothDevice device);
110
111    public abstract int getSummary(BluetoothDevice device);
112
113    public abstract int convertState(int a2dpState);
114
115    public abstract boolean isPreferred(BluetoothDevice device);
116
117    public abstract void setPreferred(BluetoothDevice device, boolean preferred);
118
119    public boolean isConnected(BluetoothDevice device) {
120        return SettingsBtStatus.isConnectionStatusConnected(getConnectionStatus(device));
121    }
122
123    // TODO: int instead of enum
124    public enum Profile {
125        HEADSET(R.string.bluetooth_profile_headset),
126        A2DP(R.string.bluetooth_profile_a2dp),
127        OPP(R.string.bluetooth_profile_opp);
128
129        public final int localizedString;
130
131        private Profile(int localizedString) {
132            this.localizedString = localizedString;
133        }
134    }
135
136    /**
137     * A2dpProfileManager is an abstraction for the {@link BluetoothA2dp} service.
138     */
139    private static class A2dpProfileManager extends LocalBluetoothProfileManager {
140        private BluetoothA2dp mService;
141
142        public A2dpProfileManager(LocalBluetoothManager localManager) {
143            super(localManager);
144            mService = new BluetoothA2dp(localManager.getContext());
145        }
146
147        @Override
148        public int connect(BluetoothDevice device) {
149            Set<BluetoothDevice> sinks = mService.getConnectedSinks();
150            if (sinks != null) {
151                for (BluetoothDevice sink : sinks) {
152                    mService.disconnectSink(sink);
153                }
154            }
155            return mService.connectSink(device);
156        }
157
158        @Override
159        public int disconnect(BluetoothDevice device) {
160            return mService.disconnectSink(device);
161        }
162
163        @Override
164        public int getConnectionStatus(BluetoothDevice device) {
165            return convertState(mService.getSinkState(device));
166        }
167
168        @Override
169        public int getSummary(BluetoothDevice device) {
170            int connectionStatus = getConnectionStatus(device);
171
172            if (SettingsBtStatus.isConnectionStatusConnected(connectionStatus)) {
173                return R.string.bluetooth_a2dp_profile_summary_connected;
174            } else {
175                return SettingsBtStatus.getConnectionStatusSummary(connectionStatus);
176            }
177        }
178
179        @Override
180        public boolean isPreferred(BluetoothDevice device) {
181            return mService.getSinkPriority(device) > BluetoothA2dp.PRIORITY_OFF;
182        }
183
184        @Override
185        public void setPreferred(BluetoothDevice device, boolean preferred) {
186            mService.setSinkPriority(device,
187                    preferred ? BluetoothA2dp.PRIORITY_AUTO : BluetoothA2dp.PRIORITY_OFF);
188        }
189
190        @Override
191        public int convertState(int a2dpState) {
192            switch (a2dpState) {
193            case BluetoothA2dp.STATE_CONNECTED:
194                return SettingsBtStatus.CONNECTION_STATUS_CONNECTED;
195            case BluetoothA2dp.STATE_CONNECTING:
196                return SettingsBtStatus.CONNECTION_STATUS_CONNECTING;
197            case BluetoothA2dp.STATE_DISCONNECTED:
198                return SettingsBtStatus.CONNECTION_STATUS_DISCONNECTED;
199            case BluetoothA2dp.STATE_DISCONNECTING:
200                return SettingsBtStatus.CONNECTION_STATUS_DISCONNECTING;
201            case BluetoothA2dp.STATE_PLAYING:
202                return SettingsBtStatus.CONNECTION_STATUS_ACTIVE;
203            default:
204                return SettingsBtStatus.CONNECTION_STATUS_UNKNOWN;
205            }
206        }
207    }
208
209    /**
210     * HeadsetProfileManager is an abstraction for the {@link BluetoothHeadset} service.
211     */
212    private static class HeadsetProfileManager extends LocalBluetoothProfileManager
213            implements BluetoothHeadset.ServiceListener {
214        private BluetoothHeadset mService;
215        private Handler mUiHandler = new Handler();
216
217        public HeadsetProfileManager(LocalBluetoothManager localManager) {
218            super(localManager);
219            mService = new BluetoothHeadset(localManager.getContext(), this);
220        }
221
222        public void onServiceConnected() {
223            // This could be called on a non-UI thread, funnel to UI thread.
224            mUiHandler.post(new Runnable() {
225                public void run() {
226                    /*
227                     * We just bound to the service, so refresh the UI of the
228                     * headset device.
229                     */
230                    BluetoothDevice device = mService.getCurrentHeadset();
231                    if (device == null) return;
232                    mLocalManager.getCachedDeviceManager()
233                            .onProfileStateChanged(device, Profile.HEADSET,
234                                                   BluetoothHeadset.STATE_CONNECTED);
235                }
236            });
237        }
238
239        public void onServiceDisconnected() {
240        }
241
242        @Override
243        public int connect(BluetoothDevice device) {
244            // Since connectHeadset fails if already connected to a headset, we
245            // disconnect from any headset first
246            mService.disconnectHeadset();
247            return mService.connectHeadset(device)
248                    ? BluetoothError.SUCCESS : BluetoothError.ERROR;
249        }
250
251        @Override
252        public int disconnect(BluetoothDevice device) {
253            if (mService.getCurrentHeadset().equals(device)) {
254                return mService.disconnectHeadset() ? BluetoothError.SUCCESS : BluetoothError.ERROR;
255            } else {
256                return BluetoothError.SUCCESS;
257            }
258        }
259
260        @Override
261        public int getConnectionStatus(BluetoothDevice device) {
262            BluetoothDevice currentDevice = mService.getCurrentHeadset();
263            return currentDevice != null && currentDevice.equals(device)
264                    ? convertState(mService.getState())
265                    : SettingsBtStatus.CONNECTION_STATUS_DISCONNECTED;
266        }
267
268        @Override
269        public int getSummary(BluetoothDevice device) {
270            int connectionStatus = getConnectionStatus(device);
271
272            if (SettingsBtStatus.isConnectionStatusConnected(connectionStatus)) {
273                return R.string.bluetooth_headset_profile_summary_connected;
274            } else {
275                return SettingsBtStatus.getConnectionStatusSummary(connectionStatus);
276            }
277        }
278
279        @Override
280        public boolean isPreferred(BluetoothDevice device) {
281            return mService.getPriority(device) > BluetoothHeadset.PRIORITY_OFF;
282        }
283
284        @Override
285        public void setPreferred(BluetoothDevice device, boolean preferred) {
286            mService.setPriority(device,
287                    preferred ? BluetoothHeadset.PRIORITY_AUTO : BluetoothHeadset.PRIORITY_OFF);
288        }
289
290        @Override
291        public int convertState(int headsetState) {
292            switch (headsetState) {
293            case BluetoothHeadset.STATE_CONNECTED:
294                return SettingsBtStatus.CONNECTION_STATUS_CONNECTED;
295            case BluetoothHeadset.STATE_CONNECTING:
296                return SettingsBtStatus.CONNECTION_STATUS_CONNECTING;
297            case BluetoothHeadset.STATE_DISCONNECTED:
298                return SettingsBtStatus.CONNECTION_STATUS_DISCONNECTED;
299            default:
300                return SettingsBtStatus.CONNECTION_STATUS_UNKNOWN;
301            }
302        }
303    }
304
305    /**
306     * OppProfileManager
307     */
308    private static class OppProfileManager extends LocalBluetoothProfileManager {
309
310        public OppProfileManager(LocalBluetoothManager localManager) {
311            super(localManager);
312        }
313
314        @Override
315        public int connect(BluetoothDevice device) {
316            return -1;
317        }
318
319        @Override
320        public int disconnect(BluetoothDevice device) {
321            return -1;
322        }
323
324        @Override
325        public int getConnectionStatus(BluetoothDevice device) {
326            return -1;
327        }
328
329        @Override
330        public int getSummary(BluetoothDevice device) {
331            int connectionStatus = getConnectionStatus(device);
332
333            if (SettingsBtStatus.isConnectionStatusConnected(connectionStatus)) {
334                return R.string.bluetooth_opp_profile_summary_connected;
335            } else {
336                return R.string.bluetooth_opp_profile_summary_not_connected;
337            }
338        }
339
340        @Override
341        public boolean isPreferred(BluetoothDevice device) {
342            return false;
343        }
344
345        @Override
346        public void setPreferred(BluetoothDevice device, boolean preferred) {
347        }
348
349        @Override
350        public int convertState(int oppState) {
351            switch (oppState) {
352            case 0:
353                return SettingsBtStatus.CONNECTION_STATUS_CONNECTED;
354            case 1:
355                return SettingsBtStatus.CONNECTION_STATUS_CONNECTING;
356            case 2:
357                return SettingsBtStatus.CONNECTION_STATUS_DISCONNECTED;
358            default:
359                return SettingsBtStatus.CONNECTION_STATUS_UNKNOWN;
360            }
361        }
362    }
363}
364