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 
17 package com.android.settingslib.bluetooth;
18 
19 import android.bluetooth.BluetoothAdapter;
20 import android.bluetooth.BluetoothClass;
21 import android.bluetooth.BluetoothDevice;
22 import android.bluetooth.BluetoothSap;
23 import android.bluetooth.BluetoothProfile;
24 import android.bluetooth.BluetoothUuid;
25 import android.content.Context;
26 import android.os.ParcelUuid;
27 import android.util.Log;
28 
29 import com.android.settingslib.R;
30 
31 import java.util.ArrayList;
32 import java.util.List;
33 
34 /**
35  * SapProfile handles Bluetooth SAP profile.
36  */
37 final class SapProfile implements LocalBluetoothProfile {
38     private static final String TAG = "SapProfile";
39     private static boolean V = true;
40 
41     private BluetoothSap mService;
42     private boolean mIsProfileReady;
43 
44     private final LocalBluetoothAdapter mLocalAdapter;
45     private final CachedBluetoothDeviceManager mDeviceManager;
46     private final LocalBluetoothProfileManager mProfileManager;
47 
48     static final ParcelUuid[] UUIDS = {
49         BluetoothUuid.SAP,
50     };
51 
52     static final String NAME = "SAP";
53 
54     // Order of this profile in device profiles list
55     private static final int ORDINAL = 10;
56 
57     // These callbacks run on the main thread.
58     private final class SapServiceListener
59             implements BluetoothProfile.ServiceListener {
60 
onServiceConnected(int profile, BluetoothProfile proxy)61         public void onServiceConnected(int profile, BluetoothProfile proxy) {
62             if (V) Log.d(TAG,"Bluetooth service connected");
63             mService = (BluetoothSap) proxy;
64             // We just bound to the service, so refresh the UI for any connected SAP devices.
65             List<BluetoothDevice> deviceList = mService.getConnectedDevices();
66             while (!deviceList.isEmpty()) {
67                 BluetoothDevice nextDevice = deviceList.remove(0);
68                 CachedBluetoothDevice device = mDeviceManager.findDevice(nextDevice);
69                 // we may add a new device here, but generally this should not happen
70                 if (device == null) {
71                     Log.w(TAG, "SapProfile found new device: " + nextDevice);
72                     device = mDeviceManager.addDevice(mLocalAdapter, mProfileManager, nextDevice);
73                 }
74                 device.onProfileStateChanged(SapProfile.this,
75                         BluetoothProfile.STATE_CONNECTED);
76                 device.refresh();
77             }
78 
79             mProfileManager.callServiceConnectedListeners();
80             mIsProfileReady=true;
81         }
82 
onServiceDisconnected(int profile)83         public void onServiceDisconnected(int profile) {
84             if (V) Log.d(TAG,"Bluetooth service disconnected");
85             mProfileManager.callServiceDisconnectedListeners();
86             mIsProfileReady=false;
87         }
88     }
89 
isProfileReady()90     public boolean isProfileReady() {
91         return mIsProfileReady;
92     }
93 
SapProfile(Context context, LocalBluetoothAdapter adapter, CachedBluetoothDeviceManager deviceManager, LocalBluetoothProfileManager profileManager)94     SapProfile(Context context, LocalBluetoothAdapter adapter,
95             CachedBluetoothDeviceManager deviceManager,
96             LocalBluetoothProfileManager profileManager) {
97         mLocalAdapter = adapter;
98         mDeviceManager = deviceManager;
99         mProfileManager = profileManager;
100         mLocalAdapter.getProfileProxy(context, new SapServiceListener(),
101                 BluetoothProfile.SAP);
102     }
103 
isConnectable()104     public boolean isConnectable() {
105         return true;
106     }
107 
isAutoConnectable()108     public boolean isAutoConnectable() {
109         return true;
110     }
111 
connect(BluetoothDevice device)112     public boolean connect(BluetoothDevice device) {
113         if (mService == null) return false;
114         List<BluetoothDevice> sinks = mService.getConnectedDevices();
115         if (sinks != null) {
116             for (BluetoothDevice sink : sinks) {
117                 mService.disconnect(sink);
118             }
119         }
120         return mService.connect(device);
121     }
122 
disconnect(BluetoothDevice device)123     public boolean disconnect(BluetoothDevice device) {
124         if (mService == null) return false;
125         List<BluetoothDevice> deviceList = mService.getConnectedDevices();
126         if (!deviceList.isEmpty() && deviceList.get(0).equals(device)) {
127             if (mService.getPriority(device) > BluetoothProfile.PRIORITY_ON) {
128                 mService.setPriority(device, BluetoothProfile.PRIORITY_ON);
129             }
130             return mService.disconnect(device);
131         } else {
132             return false;
133         }
134     }
135 
getConnectionStatus(BluetoothDevice device)136     public int getConnectionStatus(BluetoothDevice device) {
137         if (mService == null) return BluetoothProfile.STATE_DISCONNECTED;
138         List<BluetoothDevice> deviceList = mService.getConnectedDevices();
139 
140         return !deviceList.isEmpty() && deviceList.get(0).equals(device)
141                 ? mService.getConnectionState(device)
142                 : BluetoothProfile.STATE_DISCONNECTED;
143     }
144 
isPreferred(BluetoothDevice device)145     public boolean isPreferred(BluetoothDevice device) {
146         if (mService == null) return false;
147         return mService.getPriority(device) > BluetoothProfile.PRIORITY_OFF;
148     }
149 
getPreferred(BluetoothDevice device)150     public int getPreferred(BluetoothDevice device) {
151         if (mService == null) return BluetoothProfile.PRIORITY_OFF;
152         return mService.getPriority(device);
153     }
154 
setPreferred(BluetoothDevice device, boolean preferred)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 
getConnectedDevices()166     public List<BluetoothDevice> getConnectedDevices() {
167         if (mService == null) return new ArrayList<BluetoothDevice>(0);
168         return mService.getDevicesMatchingConnectionStates(
169               new int[] {BluetoothProfile.STATE_CONNECTED,
170                          BluetoothProfile.STATE_CONNECTING,
171                          BluetoothProfile.STATE_DISCONNECTING});
172     }
173 
toString()174     public String toString() {
175         return NAME;
176     }
177 
getOrdinal()178     public int getOrdinal() {
179         return ORDINAL;
180     }
181 
getNameResource(BluetoothDevice device)182     public int getNameResource(BluetoothDevice device) {
183         return R.string.bluetooth_profile_sap;
184     }
185 
getSummaryResourceForDevice(BluetoothDevice device)186     public int getSummaryResourceForDevice(BluetoothDevice device) {
187         int state = getConnectionStatus(device);
188         switch (state) {
189             case BluetoothProfile.STATE_DISCONNECTED:
190                 return R.string.bluetooth_sap_profile_summary_use_for;
191 
192             case BluetoothProfile.STATE_CONNECTED:
193                 return R.string.bluetooth_sap_profile_summary_connected;
194 
195             default:
196                 return Utils.getConnectionStateSummary(state);
197         }
198     }
199 
getDrawableResource(BluetoothClass btClass)200     public int getDrawableResource(BluetoothClass btClass) {
201         return R.drawable.ic_bt_cellphone;
202     }
203 
finalize()204     protected void finalize() {
205         if (V) Log.d(TAG, "finalize()");
206         if (mService != null) {
207             try {
208                 BluetoothAdapter.getDefaultAdapter().closeProfileProxy(BluetoothProfile.SAP,
209                                                                        mService);
210                 mService = null;
211             }catch (Throwable t) {
212                 Log.w(TAG, "Error cleaning up SAP proxy", t);
213             }
214         }
215     }
216 }
217