1 /* 2 * Copyright (C) 2017 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.BluetoothHidDevice; 23 import android.bluetooth.BluetoothProfile; 24 import android.content.Context; 25 import android.util.Log; 26 27 import com.android.settingslib.R; 28 29 import java.util.Collection; 30 import java.util.List; 31 32 /** 33 * HidProfile handles Bluetooth HID profile. 34 */ 35 public class HidDeviceProfile implements LocalBluetoothProfile { 36 private static final String TAG = "HidDeviceProfile"; 37 // Order of this profile in device profiles list 38 private static final int ORDINAL = 18; 39 // HID Device Profile is always preferred. 40 private static final int PREFERRED_VALUE = -1; 41 private static final boolean DEBUG = true; 42 43 private final LocalBluetoothAdapter mLocalAdapter; 44 private final CachedBluetoothDeviceManager mDeviceManager; 45 private final LocalBluetoothProfileManager mProfileManager; 46 static final String NAME = "HID DEVICE"; 47 48 private BluetoothHidDevice mService; 49 private boolean mIsProfileReady; 50 51 HidDeviceProfile(Context context, LocalBluetoothAdapter adapter, 52 CachedBluetoothDeviceManager deviceManager, 53 LocalBluetoothProfileManager profileManager) { 54 mLocalAdapter = adapter; 55 mDeviceManager = deviceManager; 56 mProfileManager = profileManager; 57 adapter.getProfileProxy(context, new HidDeviceServiceListener(), 58 BluetoothProfile.HID_DEVICE); 59 } 60 61 // These callbacks run on the main thread. 62 private final class HidDeviceServiceListener 63 implements BluetoothProfile.ServiceListener { 64 65 public void onServiceConnected(int profile, BluetoothProfile proxy) { 66 if (DEBUG) { 67 Log.d(TAG,"Bluetooth service connected :-)"); 68 } 69 mService = (BluetoothHidDevice) proxy; 70 // We just bound to the service, so refresh the UI for any connected HID devices. 71 List<BluetoothDevice> deviceList = mService.getConnectedDevices(); 72 for (BluetoothDevice nextDevice : deviceList) { 73 CachedBluetoothDevice device = mDeviceManager.findDevice(nextDevice); 74 // we may add a new device here, but generally this should not happen 75 if (device == null) { 76 Log.w(TAG, "HidProfile found new device: " + nextDevice); 77 device = mDeviceManager.addDevice(mLocalAdapter, mProfileManager, nextDevice); 78 } 79 Log.d(TAG, "Connection status changed: " + device); 80 device.onProfileStateChanged(HidDeviceProfile.this, 81 BluetoothProfile.STATE_CONNECTED); 82 device.refresh(); 83 } 84 mIsProfileReady = true; 85 } 86 87 public void onServiceDisconnected(int profile) { 88 if (DEBUG) { 89 Log.d(TAG, "Bluetooth service disconnected"); 90 } 91 mIsProfileReady = false; 92 } 93 } 94 95 @Override 96 public boolean isProfileReady() { 97 return mIsProfileReady; 98 } 99 100 @Override 101 public int getProfileId() { 102 return BluetoothProfile.HID_DEVICE; 103 } 104 105 @Override 106 public boolean isConnectable() { 107 return true; 108 } 109 110 @Override 111 public boolean isAutoConnectable() { 112 return false; 113 } 114 115 @Override 116 public boolean connect(BluetoothDevice device) { 117 return false; 118 } 119 120 @Override 121 public boolean disconnect(BluetoothDevice device) { 122 if (mService == null) { 123 return false; 124 } 125 return mService.disconnect(device); 126 } 127 128 @Override 129 public int getConnectionStatus(BluetoothDevice device) { 130 if (mService == null) { 131 return BluetoothProfile.STATE_DISCONNECTED; 132 } 133 List<BluetoothDevice> deviceList = mService.getConnectedDevices(); 134 135 return !deviceList.isEmpty() && deviceList.contains(device) 136 ? mService.getConnectionState(device) 137 : BluetoothProfile.STATE_DISCONNECTED; 138 } 139 140 @Override 141 public boolean isPreferred(BluetoothDevice device) { 142 return getConnectionStatus(device) != BluetoothProfile.STATE_DISCONNECTED; 143 } 144 145 @Override 146 public int getPreferred(BluetoothDevice device) { 147 return PREFERRED_VALUE; 148 } 149 150 @Override 151 public void setPreferred(BluetoothDevice device, boolean preferred) { 152 // if set preferred to false, then disconnect to the current device 153 if (!preferred) { 154 mService.disconnect(device); 155 } 156 } 157 158 @Override 159 public String toString() { 160 return NAME; 161 } 162 163 @Override 164 public int getOrdinal() { 165 return ORDINAL; 166 } 167 168 @Override 169 public int getNameResource(BluetoothDevice device) { 170 return R.string.bluetooth_profile_hid; 171 } 172 173 @Override 174 public int getSummaryResourceForDevice(BluetoothDevice device) { 175 final int state = getConnectionStatus(device); 176 switch (state) { 177 case BluetoothProfile.STATE_DISCONNECTED: 178 return R.string.bluetooth_hid_profile_summary_use_for; 179 case BluetoothProfile.STATE_CONNECTED: 180 return R.string.bluetooth_hid_profile_summary_connected; 181 default: 182 return Utils.getConnectionStateSummary(state); 183 } 184 } 185 186 @Override 187 public int getDrawableResource(BluetoothClass btClass) { 188 return R.drawable.ic_bt_misc_hid; 189 } 190 191 protected void finalize() { 192 if (DEBUG) { 193 Log.d(TAG, "finalize()"); 194 } 195 if (mService != null) { 196 try { 197 BluetoothAdapter.getDefaultAdapter().closeProfileProxy(BluetoothProfile.HID_DEVICE, 198 mService); 199 mService = null; 200 } catch (Throwable t) { 201 Log.w(TAG, "Error cleaning up HID proxy", t); 202 } 203 } 204 } 205 } 206
