LocalBluetoothProfileManager.java revision afc4ab2ffbb8327ddce9907961295a32cbf49d0f 
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 com.android.settings.R;
20
21import android.bluetooth.BluetoothA2dp;
22import android.bluetooth.BluetoothError;
23import android.bluetooth.BluetoothHeadset;
24import android.bluetooth.BluetoothClass;
25import android.content.Context;
26import android.content.SharedPreferences;
27import android.os.Handler;
28import android.text.TextUtils;
29
30import java.util.HashMap;
31import java.util.List;
32import java.util.Map;
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
65                sProfileMap.put(profile, profileManager);
66            }
67        }
68
69        return profileManager;
70    }
71
72    /**
73     * Temporary method to fill profiles based on a device's class.
74     *
75     * @param btClass The class
76     * @param profiles The list of profiles to fill
77     */
78    public static void fill(int btClass, List<Profile> profiles) {
79        profiles.clear();
80
81        if (BluetoothA2dp.doesClassMatchSink(btClass)) {
82            profiles.add(Profile.A2DP);
83        }
84
85        if (BluetoothHeadset.doesClassMatch(btClass)) {
86            profiles.add(Profile.HEADSET);
87        }
88    }
89
90    protected LocalBluetoothProfileManager(LocalBluetoothManager localManager) {
91        mLocalManager = localManager;
92    }
93
94    public abstract int connect(String address);
95
96    public abstract int disconnect(String address);
97
98    public abstract int getConnectionStatus(String address);
99
100    public abstract int getSummary(String address);
101
102    public abstract boolean isPreferred(String address);
103
104    public abstract void setPreferred(String address, boolean preferred);
105
106    public boolean isConnected(String address) {
107        return SettingsBtStatus.isConnectionStatusConnected(getConnectionStatus(address));
108    }
109
110    // TODO: int instead of enum
111    public enum Profile {
112        HEADSET(R.string.bluetooth_profile_headset),
113        A2DP(R.string.bluetooth_profile_a2dp);
114
115        public final int localizedString;
116
117        private Profile(int localizedString) {
118            this.localizedString = localizedString;
119        }
120    }
121
122    /**
123     * A2dpProfileManager is an abstraction for the {@link BluetoothA2dp} service.
124     */
125    private static class A2dpProfileManager extends LocalBluetoothProfileManager {
126        private BluetoothA2dp mService;
127
128        public A2dpProfileManager(LocalBluetoothManager localManager) {
129            super(localManager);
130            mService = new BluetoothA2dp(localManager.getContext());
131        }
132
133        @Override
134        public int connect(String address) {
135            return mService.connectSink(address);
136        }
137
138        @Override
139        public int disconnect(String address) {
140            return mService.disconnectSink(address);
141        }
142
143        @Override
144        public int getConnectionStatus(String address) {
145            return convertState(mService.getSinkState(address));
146        }
147
148        @Override
149        public int getSummary(String address) {
150            int connectionStatus = getConnectionStatus(address);
151
152            if (SettingsBtStatus.isConnectionStatusConnected(connectionStatus)) {
153                return R.string.bluetooth_a2dp_profile_summary_connected;
154            } else {
155                return SettingsBtStatus.getConnectionStatusSummary(connectionStatus);
156            }
157        }
158
159        @Override
160        public boolean isPreferred(String address) {
161            return mService.getSinkPriority(address) > BluetoothA2dp.PRIORITY_OFF;
162        }
163
164        @Override
165        public void setPreferred(String address, boolean preferred) {
166            mService.setSinkPriority(address,
167                    preferred ? BluetoothA2dp.PRIORITY_AUTO : BluetoothA2dp.PRIORITY_OFF);
168        }
169
170        private static int convertState(int a2dpState) {
171            switch (a2dpState) {
172            case BluetoothA2dp.STATE_CONNECTED:
173                return SettingsBtStatus.CONNECTION_STATUS_CONNECTED;
174            case BluetoothA2dp.STATE_CONNECTING:
175                return SettingsBtStatus.CONNECTION_STATUS_CONNECTING;
176            case BluetoothA2dp.STATE_DISCONNECTED:
177                return SettingsBtStatus.CONNECTION_STATUS_DISCONNECTED;
178            case BluetoothA2dp.STATE_DISCONNECTING:
179                return SettingsBtStatus.CONNECTION_STATUS_DISCONNECTING;
180            case BluetoothA2dp.STATE_PLAYING:
181                return SettingsBtStatus.CONNECTION_STATUS_ACTIVE;
182            default:
183                return SettingsBtStatus.CONNECTION_STATUS_UNKNOWN;
184            }
185        }
186    }
187
188    /**
189     * HeadsetProfileManager is an abstraction for the {@link BluetoothHeadset} service.
190     */
191    private static class HeadsetProfileManager extends LocalBluetoothProfileManager
192            implements BluetoothHeadset.ServiceListener {
193        private BluetoothHeadset mService;
194        private Handler mUiHandler = new Handler();
195
196        public HeadsetProfileManager(LocalBluetoothManager localManager) {
197            super(localManager);
198            mService = new BluetoothHeadset(localManager.getContext(), this);
199        }
200
201        public void onServiceConnected() {
202            // This could be called on a non-UI thread, funnel to UI thread.
203            mUiHandler.post(new Runnable() {
204                public void run() {
205                    /*
206                     * We just bound to the service, so refresh the UI of the
207                     * headset device.
208                     */
209                    String address = mService.getHeadsetAddress();
210                    if (TextUtils.isEmpty(address)) return;
211                    mLocalManager.getLocalDeviceManager().onProfileStateChanged(address);
212                }
213            });
214        }
215
216        public void onServiceDisconnected() {
217        }
218
219        @Override
220        public int connect(String address) {
221            // Since connectHeadset fails if already connected to a headset, we
222            // disconnect from any headset first
223            mService.disconnectHeadset();
224            return mService.connectHeadset(address)
225                    ? BluetoothError.SUCCESS : BluetoothError.ERROR;
226        }
227
228        @Override
229        public int disconnect(String address) {
230            if (mService.getHeadsetAddress().equals(address)) {
231                return mService.disconnectHeadset() ? BluetoothError.SUCCESS : BluetoothError.ERROR;
232            } else {
233                return BluetoothError.SUCCESS;
234            }
235        }
236
237        @Override
238        public int getConnectionStatus(String address) {
239            String headsetAddress = mService.getHeadsetAddress();
240            return headsetAddress != null && headsetAddress.equals(address)
241                    ? convertState(mService.getState())
242                    : SettingsBtStatus.CONNECTION_STATUS_DISCONNECTED;
243        }
244
245        @Override
246        public int getSummary(String address) {
247            int connectionStatus = getConnectionStatus(address);
248
249            if (SettingsBtStatus.isConnectionStatusConnected(connectionStatus)) {
250                return R.string.bluetooth_headset_profile_summary_connected;
251            } else {
252                return SettingsBtStatus.getConnectionStatusSummary(connectionStatus);
253            }
254        }
255
256        @Override
257        public boolean isPreferred(String address) {
258            return mService.getPriority(address) > BluetoothHeadset.PRIORITY_OFF;
259        }
260
261        @Override
262        public void setPreferred(String address, boolean preferred) {
263            mService.setPriority(address,
264                    preferred ? BluetoothHeadset.PRIORITY_AUTO : BluetoothHeadset.PRIORITY_OFF);
265        }
266
267        private static int convertState(int headsetState) {
268            switch (headsetState) {
269            case BluetoothHeadset.STATE_CONNECTED:
270                return SettingsBtStatus.CONNECTION_STATUS_CONNECTED;
271            case BluetoothHeadset.STATE_CONNECTING:
272                return SettingsBtStatus.CONNECTION_STATUS_CONNECTING;
273            case BluetoothHeadset.STATE_DISCONNECTED:
274                return SettingsBtStatus.CONNECTION_STATUS_DISCONNECTED;
275            default:
276                return SettingsBtStatus.CONNECTION_STATUS_UNKNOWN;
277            }
278        }
279    }
280}
281