1/*
2 * Copyright (C) 2012 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.BluetoothInputDevice;
23import android.bluetooth.BluetoothProfile;
24import android.content.Context;
25import android.util.Log;
26
27import com.android.settings.R;
28
29import java.util.List;
30
31/**
32 * HidProfile handles Bluetooth HID profile.
33 */
34final class HidProfile implements LocalBluetoothProfile {
35    private static final String TAG = "HidProfile";
36    private static boolean V = true;
37
38    private BluetoothInputDevice mService;
39    private boolean mIsProfileReady;
40
41    static final String NAME = "HID";
42
43    // Order of this profile in device profiles list
44    private static final int ORDINAL = 3;
45
46    // These callbacks run on the main thread.
47    private final class InputDeviceServiceListener
48            implements BluetoothProfile.ServiceListener {
49
50        public void onServiceConnected(int profile, BluetoothProfile proxy) {
51            if (V) Log.d(TAG,"Bluetooth service connected");
52            mService = (BluetoothInputDevice) proxy;
53            mIsProfileReady=true;
54        }
55
56        public void onServiceDisconnected(int profile) {
57            if (V) Log.d(TAG,"Bluetooth service disconnected");
58            mIsProfileReady=false;
59        }
60    }
61
62    public boolean isProfileReady() {
63        return mIsProfileReady;
64    }
65
66    HidProfile(Context context, LocalBluetoothAdapter adapter) {
67        adapter.getProfileProxy(context, new InputDeviceServiceListener(),
68                BluetoothProfile.INPUT_DEVICE);
69    }
70
71    public boolean isConnectable() {
72        return true;
73    }
74
75    public boolean isAutoConnectable() {
76        return true;
77    }
78
79    public boolean connect(BluetoothDevice device) {
80        if (mService == null) return false;
81        return mService.connect(device);
82    }
83
84    public boolean disconnect(BluetoothDevice device) {
85        if (mService == null) return false;
86        return mService.disconnect(device);
87    }
88
89    public int getConnectionStatus(BluetoothDevice device) {
90        if (mService == null) {
91            return BluetoothProfile.STATE_DISCONNECTED;
92        }
93        List<BluetoothDevice> deviceList = mService.getConnectedDevices();
94
95        return !deviceList.isEmpty() && deviceList.get(0).equals(device)
96                ? mService.getConnectionState(device)
97                : BluetoothProfile.STATE_DISCONNECTED;
98    }
99
100    public boolean isPreferred(BluetoothDevice device) {
101        if (mService == null) return false;
102        return mService.getPriority(device) > BluetoothProfile.PRIORITY_OFF;
103    }
104
105    public int getPreferred(BluetoothDevice device) {
106        if (mService == null) return BluetoothProfile.PRIORITY_OFF;
107        return mService.getPriority(device);
108    }
109
110    public void setPreferred(BluetoothDevice device, boolean preferred) {
111        if (mService == null) return;
112        if (preferred) {
113            if (mService.getPriority(device) < BluetoothProfile.PRIORITY_ON) {
114                mService.setPriority(device, BluetoothProfile.PRIORITY_ON);
115            }
116        } else {
117            mService.setPriority(device, BluetoothProfile.PRIORITY_OFF);
118        }
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        // TODO: distinguish between keyboard and mouse?
131        return R.string.bluetooth_profile_hid;
132    }
133
134    public int getSummaryResourceForDevice(BluetoothDevice device) {
135        int state = getConnectionStatus(device);
136        switch (state) {
137            case BluetoothProfile.STATE_DISCONNECTED:
138                return R.string.bluetooth_hid_profile_summary_use_for;
139
140            case BluetoothProfile.STATE_CONNECTED:
141                return R.string.bluetooth_hid_profile_summary_connected;
142
143            default:
144                return Utils.getConnectionStateSummary(state);
145        }
146    }
147
148    public int getDrawableResource(BluetoothClass btClass) {
149        if (btClass == null) {
150            return R.drawable.ic_bt_keyboard_hid;
151        }
152        return getHidClassDrawable(btClass);
153    }
154
155    static int getHidClassDrawable(BluetoothClass btClass) {
156        switch (btClass.getDeviceClass()) {
157            case BluetoothClass.Device.PERIPHERAL_KEYBOARD:
158            case BluetoothClass.Device.PERIPHERAL_KEYBOARD_POINTING:
159                return R.drawable.ic_bt_keyboard_hid;
160            case BluetoothClass.Device.PERIPHERAL_POINTING:
161                return R.drawable.ic_bt_pointing_hid;
162            default:
163                return R.drawable.ic_bt_misc_hid;
164        }
165    }
166
167    protected void finalize() {
168        if (V) Log.d(TAG, "finalize()");
169        if (mService != null) {
170            try {
171                BluetoothAdapter.getDefaultAdapter().closeProfileProxy(BluetoothProfile.INPUT_DEVICE,
172                                                                       mService);
173                mService = null;
174            }catch (Throwable t) {
175                Log.w(TAG, "Error cleaning up HID proxy", t);
176            }
177        }
178    }
179}
180