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 static android.bluetooth.BluetoothProfile.CONNECTION_POLICY_ALLOWED;
20 import static android.bluetooth.BluetoothProfile.CONNECTION_POLICY_FORBIDDEN;
21 
22 import android.bluetooth.BluetoothAdapter;
23 import android.bluetooth.BluetoothClass;
24 import android.bluetooth.BluetoothDevice;
25 import android.bluetooth.BluetoothProfile;
26 import android.bluetooth.BluetoothSap;
27 import android.bluetooth.BluetoothUuid;
28 import android.content.Context;
29 import android.os.ParcelUuid;
30 import android.util.Log;
31 
32 import com.android.settingslib.R;
33 
34 import java.util.ArrayList;
35 import java.util.List;
36 
37 /**
38  * SapProfile handles Bluetooth SAP profile.
39  */
40 final class SapProfile implements LocalBluetoothProfile {
41     private static final String TAG = "SapProfile";
42 
43     private BluetoothSap mService;
44     private boolean mIsProfileReady;
45 
46     private final CachedBluetoothDeviceManager mDeviceManager;
47     private final LocalBluetoothProfileManager mProfileManager;
48 
49     static final ParcelUuid[] UUIDS = {
50         BluetoothUuid.SAP,
51     };
52 
53     static final String NAME = "SAP";
54 
55     // Order of this profile in device profiles list
56     private static final int ORDINAL = 10;
57 
58     // These callbacks run on the main thread.
59     private final class SapServiceListener
60             implements BluetoothProfile.ServiceListener {
61 
onServiceConnected(int profile, BluetoothProfile proxy)62         public void onServiceConnected(int profile, BluetoothProfile proxy) {
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(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             mProfileManager.callServiceDisconnectedListeners();
85             mIsProfileReady=false;
86         }
87     }
88 
isProfileReady()89     public boolean isProfileReady() {
90         return mIsProfileReady;
91     }
92 
93     @Override
getProfileId()94     public int getProfileId() {
95         return BluetoothProfile.SAP;
96     }
97 
SapProfile(Context context, CachedBluetoothDeviceManager deviceManager, LocalBluetoothProfileManager profileManager)98     SapProfile(Context context, CachedBluetoothDeviceManager deviceManager,
99             LocalBluetoothProfileManager profileManager) {
100         mDeviceManager = deviceManager;
101         mProfileManager = profileManager;
102         BluetoothAdapter.getDefaultAdapter().getProfileProxy(context, new SapServiceListener(),
103                 BluetoothProfile.SAP);
104     }
105 
accessProfileEnabled()106     public boolean accessProfileEnabled() {
107         return true;
108     }
109 
isAutoConnectable()110     public boolean isAutoConnectable() {
111         return true;
112     }
113 
getConnectionStatus(BluetoothDevice device)114     public int getConnectionStatus(BluetoothDevice device) {
115         if (mService == null) {
116             return BluetoothProfile.STATE_DISCONNECTED;
117         }
118         return mService.getConnectionState(device);
119     }
120 
121     @Override
isEnabled(BluetoothDevice device)122     public boolean isEnabled(BluetoothDevice device) {
123         if (mService == null) {
124             return false;
125         }
126         return mService.getConnectionPolicy(device) > CONNECTION_POLICY_FORBIDDEN;
127     }
128 
129     @Override
getConnectionPolicy(BluetoothDevice device)130     public int getConnectionPolicy(BluetoothDevice device) {
131         if (mService == null) {
132             return CONNECTION_POLICY_FORBIDDEN;
133         }
134         return mService.getConnectionPolicy(device);
135     }
136 
137     @Override
setEnabled(BluetoothDevice device, boolean enabled)138     public boolean setEnabled(BluetoothDevice device, boolean enabled) {
139         boolean isSuccessful = false;
140         if (mService == null) {
141             return false;
142         }
143         if (enabled) {
144             if (mService.getConnectionPolicy(device) < CONNECTION_POLICY_ALLOWED) {
145                 isSuccessful = mService.setConnectionPolicy(device, CONNECTION_POLICY_ALLOWED);
146             }
147         } else {
148             isSuccessful = mService.setConnectionPolicy(device, CONNECTION_POLICY_FORBIDDEN);
149         }
150 
151         return isSuccessful;
152     }
153 
getConnectedDevices()154     public List<BluetoothDevice> getConnectedDevices() {
155         if (mService == null) {
156             return new ArrayList<BluetoothDevice>(0);
157         }
158         return mService.getDevicesMatchingConnectionStates(
159               new int[] {BluetoothProfile.STATE_CONNECTED,
160                          BluetoothProfile.STATE_CONNECTING,
161                          BluetoothProfile.STATE_DISCONNECTING});
162     }
163 
toString()164     public String toString() {
165         return NAME;
166     }
167 
getOrdinal()168     public int getOrdinal() {
169         return ORDINAL;
170     }
171 
getNameResource(BluetoothDevice device)172     public int getNameResource(BluetoothDevice device) {
173         return R.string.bluetooth_profile_sap;
174     }
175 
getSummaryResourceForDevice(BluetoothDevice device)176     public int getSummaryResourceForDevice(BluetoothDevice device) {
177         int state = getConnectionStatus(device);
178         switch (state) {
179             case BluetoothProfile.STATE_DISCONNECTED:
180                 return R.string.bluetooth_sap_profile_summary_use_for;
181 
182             case BluetoothProfile.STATE_CONNECTED:
183                 return R.string.bluetooth_sap_profile_summary_connected;
184 
185             default:
186                 return BluetoothUtils.getConnectionStateSummary(state);
187         }
188     }
189 
getDrawableResource(BluetoothClass btClass)190     public int getDrawableResource(BluetoothClass btClass) {
191         return com.android.internal.R.drawable.ic_phone;
192     }
193 
finalize()194     protected void finalize() {
195         Log.d(TAG, "finalize()");
196         if (mService != null) {
197             try {
198                 BluetoothAdapter.getDefaultAdapter().closeProfileProxy(BluetoothProfile.SAP,
199                         mService);
200                 mService = null;
201             }catch (Throwable t) {
202                 Log.w(TAG, "Error cleaning up SAP proxy", t);
203             }
204         }
205     }
206 }
207