1/*
2 * Copyright (C) 2011 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.BluetoothAdapter;
20import android.bluetooth.BluetoothClass;
21import android.bluetooth.BluetoothDevice;
22import android.bluetooth.BluetoothPan;
23import android.bluetooth.BluetoothProfile;
24import android.content.Context;
25import android.util.Log;
26
27import com.android.settings.R;
28
29import java.util.HashMap;
30import java.util.List;
31
32/**
33 * PanProfile handles Bluetooth PAN profile (NAP and PANU).
34 */
35final class PanProfile implements LocalBluetoothProfile {
36    private static final String TAG = "PanProfile";
37    private static boolean V = true;
38
39    private BluetoothPan mService;
40    private boolean mIsProfileReady;
41
42    // Tethering direction for each device
43    private final HashMap<BluetoothDevice, Integer> mDeviceRoleMap =
44            new HashMap<BluetoothDevice, Integer>();
45
46    static final String NAME = "PAN";
47
48    // Order of this profile in device profiles list
49    private static final int ORDINAL = 4;
50
51    // These callbacks run on the main thread.
52    private final class PanServiceListener
53            implements BluetoothProfile.ServiceListener {
54
55        public void onServiceConnected(int profile, BluetoothProfile proxy) {
56            if (V) Log.d(TAG,"Bluetooth service connected");
57            mService = (BluetoothPan) proxy;
58            mIsProfileReady=true;
59        }
60
61        public void onServiceDisconnected(int profile) {
62            if (V) Log.d(TAG,"Bluetooth service disconnected");
63            mIsProfileReady=false;
64        }
65    }
66
67    public boolean isProfileReady() {
68        return mIsProfileReady;
69    }
70
71    PanProfile(Context context) {
72        BluetoothAdapter adapter = BluetoothAdapter.getDefaultAdapter();
73        adapter.getProfileProxy(context, new PanServiceListener(),
74                BluetoothProfile.PAN);
75    }
76
77    public boolean isConnectable() {
78        return true;
79    }
80
81    public boolean isAutoConnectable() {
82        return false;
83    }
84
85    public boolean connect(BluetoothDevice device) {
86        if (mService == null) return false;
87        List<BluetoothDevice> sinks = mService.getConnectedDevices();
88        if (sinks != null) {
89            for (BluetoothDevice sink : sinks) {
90                mService.disconnect(sink);
91            }
92        }
93        return mService.connect(device);
94    }
95
96    public boolean disconnect(BluetoothDevice device) {
97        if (mService == null) return false;
98        return mService.disconnect(device);
99    }
100
101    public int getConnectionStatus(BluetoothDevice device) {
102        if (mService == null) {
103            return BluetoothProfile.STATE_DISCONNECTED;
104        }
105        return mService.getConnectionState(device);
106    }
107
108    public boolean isPreferred(BluetoothDevice device) {
109        // return current connection status so profile checkbox is set correctly
110        return getConnectionStatus(device) == BluetoothProfile.STATE_CONNECTED;
111    }
112
113    public int getPreferred(BluetoothDevice device) {
114        return -1;
115    }
116
117    public void setPreferred(BluetoothDevice device, boolean preferred) {
118        // ignore: isPreferred is always true for PAN
119    }
120
121    public String toString() {
122        return NAME;
123    }
124
125    public int getOrdinal() {
126        return ORDINAL;
127    }
128
129    public int getNameResource(BluetoothDevice device) {
130        if (isLocalRoleNap(device)) {
131            return R.string.bluetooth_profile_pan_nap;
132        } else {
133            return R.string.bluetooth_profile_pan;
134        }
135    }
136
137    public int getSummaryResourceForDevice(BluetoothDevice device) {
138        int state = getConnectionStatus(device);
139        switch (state) {
140            case BluetoothProfile.STATE_DISCONNECTED:
141                return R.string.bluetooth_pan_profile_summary_use_for;
142
143            case BluetoothProfile.STATE_CONNECTED:
144                if (isLocalRoleNap(device)) {
145                    return R.string.bluetooth_pan_nap_profile_summary_connected;
146                } else {
147                    return R.string.bluetooth_pan_user_profile_summary_connected;
148                }
149
150            default:
151                return Utils.getConnectionStateSummary(state);
152        }
153    }
154
155    public int getDrawableResource(BluetoothClass btClass) {
156        return R.drawable.ic_bt_network_pan;
157    }
158
159    // Tethering direction determines UI strings.
160    void setLocalRole(BluetoothDevice device, int role) {
161        mDeviceRoleMap.put(device, role);
162    }
163
164    boolean isLocalRoleNap(BluetoothDevice device) {
165        if (mDeviceRoleMap.containsKey(device)) {
166            return mDeviceRoleMap.get(device) == BluetoothPan.LOCAL_NAP_ROLE;
167        } else {
168            return false;
169        }
170    }
171
172    protected void finalize() {
173        if (V) Log.d(TAG, "finalize()");
174        if (mService != null) {
175            try {
176                BluetoothAdapter.getDefaultAdapter().closeProfileProxy(BluetoothProfile.PAN, mService);
177                mService = null;
178            }catch (Throwable t) {
179                Log.w(TAG, "Error cleaning up PAN proxy", t);
180            }
181        }
182    }
183}
184