LocalBluetoothProfileManager.java revision 16cc86315d7a8e1f6a0f3083d0a810a7cb097832 
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.BluetoothHeadset;
23import android.os.Handler;
24import android.text.TextUtils;
25
26import com.android.settings.R;
27
28import java.util.HashMap;
29import java.util.List;
30import java.util.Map;
31import java.util.Set;
32
33/**
34 * LocalBluetoothProfileManager is an abstract class defining the basic
35 * functionality related to a profile.
36 */
37public abstract class LocalBluetoothProfileManager {
38
39    // TODO: close profiles when we're shutting down
40    private static Map<Profile, LocalBluetoothProfileManager> sProfileMap =
41            new HashMap<Profile, LocalBluetoothProfileManager>();
42
43    protected LocalBluetoothManager mLocalManager;
44
45    public static LocalBluetoothProfileManager getProfileManager(LocalBluetoothManager localManager,
46            Profile profile) {
47
48        LocalBluetoothProfileManager profileManager;
49
50        synchronized (sProfileMap) {
51            profileManager = sProfileMap.get(profile);
52
53            if (profileManager == null) {
54                switch (profile) {
55                case A2DP:
56                    profileManager = new A2dpProfileManager(localManager);
57                    break;
58
59                case HEADSET:
60                    profileManager = new HeadsetProfileManager(localManager);
61                    break;
62
63                case OPP:
64                    profileManager = new OppProfileManager(localManager);
65                    break;
66                }
67
68                sProfileMap.put(profile, profileManager);
69            }
70        }
71
72        return profileManager;
73    }
74
75    /**
76     * Temporary method to fill profiles based on a device's class.
77     *
78     * NOTE: This list happens to define the connection order. We should put this logic in a more
79     * well known place when this method is no longer temporary.
80     *
81     * @param btClass The class
82     * @param profiles The list of profiles to fill
83     */
84    public static void fill(BluetoothClass btClass, List<Profile> profiles) {
85        profiles.clear();
86
87        if (btClass.doesClassMatch(BluetoothClass.PROFILE_HEADSET)) {
88            profiles.add(Profile.HEADSET);
89        }
90
91        if (btClass.doesClassMatch(BluetoothClass.PROFILE_A2DP)) {
92            profiles.add(Profile.A2DP);
93        }
94
95        if (btClass.doesClassMatch(BluetoothClass.PROFILE_OPP)) {
96            profiles.add(Profile.OPP);
97        }
98    }
99
100    protected LocalBluetoothProfileManager(LocalBluetoothManager localManager) {
101        mLocalManager = localManager;
102    }
103
104    public abstract boolean connect(BluetoothDevice device);
105
106    public abstract boolean disconnect(BluetoothDevice device);
107
108    public abstract int getConnectionStatus(BluetoothDevice device);
109
110    public abstract int getSummary(BluetoothDevice device);
111
112    public abstract int convertState(int a2dpState);
113
114    public abstract boolean isPreferred(BluetoothDevice device);
115
116    public abstract void setPreferred(BluetoothDevice device, boolean preferred);
117
118    public boolean isConnected(BluetoothDevice device) {
119        return SettingsBtStatus.isConnectionStatusConnected(getConnectionStatus(device));
120    }
121
122    // TODO: int instead of enum
123    public enum Profile {
124        HEADSET(R.string.bluetooth_profile_headset),
125        A2DP(R.string.bluetooth_profile_a2dp),
126        OPP(R.string.bluetooth_profile_opp);
127
128        public final int localizedString;
129
130        private Profile(int localizedString) {
131            this.localizedString = localizedString;
132        }
133    }
134
135    /**
136     * A2dpProfileManager is an abstraction for the {@link BluetoothA2dp} service.
137     */
138    private static class A2dpProfileManager extends LocalBluetoothProfileManager {
139        private BluetoothA2dp mService;
140
141        public A2dpProfileManager(LocalBluetoothManager localManager) {
142            super(localManager);
143            mService = new BluetoothA2dp(localManager.getContext());
144        }
145
146        @Override
147        public boolean connect(BluetoothDevice device) {
148            Set<BluetoothDevice> sinks = mService.getConnectedSinks();
149            if (sinks != null) {
150                for (BluetoothDevice sink : sinks) {
151                    mService.disconnectSink(sink);
152                }
153            }
154            return mService.connectSink(device);
155        }
156
157        @Override
158        public boolean disconnect(BluetoothDevice device) {
159            return mService.disconnectSink(device);
160        }
161
162        @Override
163        public int getConnectionStatus(BluetoothDevice device) {
164            return convertState(mService.getSinkState(device));
165        }
166
167        @Override
168        public int getSummary(BluetoothDevice device) {
169            int connectionStatus = getConnectionStatus(device);
170
171            if (SettingsBtStatus.isConnectionStatusConnected(connectionStatus)) {
172                return R.string.bluetooth_a2dp_profile_summary_connected;
173            } else {
174                return SettingsBtStatus.getConnectionStatusSummary(connectionStatus);
175            }
176        }
177
178        @Override
179        public boolean isPreferred(BluetoothDevice device) {
180            return mService.getSinkPriority(device) > BluetoothA2dp.PRIORITY_OFF;
181        }
182
183        @Override
184        public void setPreferred(BluetoothDevice device, boolean preferred) {
185            mService.setSinkPriority(device,
186                    preferred ? BluetoothA2dp.PRIORITY_AUTO : BluetoothA2dp.PRIORITY_OFF);
187        }
188
189        @Override
190        public int convertState(int a2dpState) {
191            switch (a2dpState) {
192            case BluetoothA2dp.STATE_CONNECTED:
193                return SettingsBtStatus.CONNECTION_STATUS_CONNECTED;
194            case BluetoothA2dp.STATE_CONNECTING:
195                return SettingsBtStatus.CONNECTION_STATUS_CONNECTING;
196            case BluetoothA2dp.STATE_DISCONNECTED:
197                return SettingsBtStatus.CONNECTION_STATUS_DISCONNECTED;
198            case BluetoothA2dp.STATE_DISCONNECTING:
199                return SettingsBtStatus.CONNECTION_STATUS_DISCONNECTING;
200            case BluetoothA2dp.STATE_PLAYING:
201                return SettingsBtStatus.CONNECTION_STATUS_ACTIVE;
202            default:
203                return SettingsBtStatus.CONNECTION_STATUS_UNKNOWN;
204            }
205        }
206    }
207
208    /**
209     * HeadsetProfileManager is an abstraction for the {@link BluetoothHeadset} service.
210     */
211    private static class HeadsetProfileManager extends LocalBluetoothProfileManager
212            implements BluetoothHeadset.ServiceListener {
213        private BluetoothHeadset mService;
214        private Handler mUiHandler = new Handler();
215
216        public HeadsetProfileManager(LocalBluetoothManager localManager) {
217            super(localManager);
218            mService = new BluetoothHeadset(localManager.getContext(), this);
219        }
220
221        public void onServiceConnected() {
222            // This could be called on a non-UI thread, funnel to UI thread.
223            mUiHandler.post(new Runnable() {
224                public void run() {
225                    /*
226                     * We just bound to the service, so refresh the UI of the
227                     * headset device.
228                     */
229                    BluetoothDevice device = mService.getCurrentHeadset();
230                    if (device == null) return;
231                    mLocalManager.getCachedDeviceManager()
232                            .onProfileStateChanged(device, Profile.HEADSET,
233                                                   BluetoothHeadset.STATE_CONNECTED);
234                }
235            });
236        }
237
238        public void onServiceDisconnected() {
239        }
240
241        @Override
242        public boolean connect(BluetoothDevice device) {
243            // Since connectHeadset fails if already connected to a headset, we
244            // disconnect from any headset first
245            mService.disconnectHeadset();
246            return mService.connectHeadset(device);
247        }
248
249        @Override
250        public boolean disconnect(BluetoothDevice device) {
251            if (mService.getCurrentHeadset().equals(device)) {
252                return mService.disconnectHeadset();
253            } else {
254                return false;
255            }
256        }
257
258        @Override
259        public int getConnectionStatus(BluetoothDevice device) {
260            BluetoothDevice currentDevice = mService.getCurrentHeadset();
261            return currentDevice != null && currentDevice.equals(device)
262                    ? convertState(mService.getState())
263                    : SettingsBtStatus.CONNECTION_STATUS_DISCONNECTED;
264        }
265
266        @Override
267        public int getSummary(BluetoothDevice device) {
268            int connectionStatus = getConnectionStatus(device);
269
270            if (SettingsBtStatus.isConnectionStatusConnected(connectionStatus)) {
271                return R.string.bluetooth_headset_profile_summary_connected;
272            } else {
273                return SettingsBtStatus.getConnectionStatusSummary(connectionStatus);
274            }
275        }
276
277        @Override
278        public boolean isPreferred(BluetoothDevice device) {
279            return mService.getPriority(device) > BluetoothHeadset.PRIORITY_OFF;
280        }
281
282        @Override
283        public void setPreferred(BluetoothDevice device, boolean preferred) {
284            mService.setPriority(device,
285                    preferred ? BluetoothHeadset.PRIORITY_AUTO : BluetoothHeadset.PRIORITY_OFF);
286        }
287
288        @Override
289        public int convertState(int headsetState) {
290            switch (headsetState) {
291            case BluetoothHeadset.STATE_CONNECTED:
292                return SettingsBtStatus.CONNECTION_STATUS_CONNECTED;
293            case BluetoothHeadset.STATE_CONNECTING:
294                return SettingsBtStatus.CONNECTION_STATUS_CONNECTING;
295            case BluetoothHeadset.STATE_DISCONNECTED:
296                return SettingsBtStatus.CONNECTION_STATUS_DISCONNECTED;
297            default:
298                return SettingsBtStatus.CONNECTION_STATUS_UNKNOWN;
299            }
300        }
301    }
302
303    /**
304     * OppProfileManager
305     */
306    private static class OppProfileManager extends LocalBluetoothProfileManager {
307
308        public OppProfileManager(LocalBluetoothManager localManager) {
309            super(localManager);
310        }
311
312        @Override
313        public boolean connect(BluetoothDevice device) {
314            return false;
315        }
316
317        @Override
318        public boolean disconnect(BluetoothDevice device) {
319            return false;
320        }
321
322        @Override
323        public int getConnectionStatus(BluetoothDevice device) {
324            return -1;
325        }
326
327        @Override
328        public int getSummary(BluetoothDevice device) {
329            int connectionStatus = getConnectionStatus(device);
330
331            if (SettingsBtStatus.isConnectionStatusConnected(connectionStatus)) {
332                return R.string.bluetooth_opp_profile_summary_connected;
333            } else {
334                return R.string.bluetooth_opp_profile_summary_not_connected;
335            }
336        }
337
338        @Override
339        public boolean isPreferred(BluetoothDevice device) {
340            return false;
341        }
342
343        @Override
344        public void setPreferred(BluetoothDevice device, boolean preferred) {
345        }
346
347        @Override
348        public int convertState(int oppState) {
349            switch (oppState) {
350            case 0:
351                return SettingsBtStatus.CONNECTION_STATUS_CONNECTED;
352            case 1:
353                return SettingsBtStatus.CONNECTION_STATUS_CONNECTING;
354            case 2:
355                return SettingsBtStatus.CONNECTION_STATUS_DISCONNECTED;
356            default:
357                return SettingsBtStatus.CONNECTION_STATUS_UNKNOWN;
358            }
359        }
360    }
361}
362