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 package com.android.settings.connecteddevice; 17 18 import android.content.Context; 19 import android.content.pm.PackageManager; 20 import android.hardware.input.InputManager; 21 import android.util.FeatureFlagUtils; 22 import android.view.InputDevice; 23 24 import androidx.annotation.VisibleForTesting; 25 import androidx.preference.Preference; 26 import androidx.preference.PreferenceGroup; 27 import androidx.preference.PreferenceScreen; 28 29 import com.android.settings.bluetooth.BluetoothDeviceUpdater; 30 import com.android.settings.bluetooth.ConnectedBluetoothDeviceUpdater; 31 import com.android.settings.connecteddevice.dock.DockUpdater; 32 import com.android.settings.connecteddevice.stylus.StylusDeviceUpdater; 33 import com.android.settings.connecteddevice.usb.ConnectedUsbDeviceUpdater; 34 import com.android.settings.core.BasePreferenceController; 35 import com.android.settings.core.PreferenceControllerMixin; 36 import com.android.settings.dashboard.DashboardFragment; 37 import com.android.settings.overlay.DockUpdaterFeatureProvider; 38 import com.android.settings.overlay.FeatureFactory; 39 import com.android.settingslib.core.lifecycle.LifecycleObserver; 40 import com.android.settingslib.core.lifecycle.events.OnStart; 41 import com.android.settingslib.core.lifecycle.events.OnStop; 42 43 /** 44 * Controller to maintain the {@link androidx.preference.PreferenceGroup} for all 45 * connected devices. It uses {@link DevicePreferenceCallback} to add/remove {@link Preference} 46 */ 47 public class ConnectedDeviceGroupController extends BasePreferenceController 48 implements PreferenceControllerMixin, LifecycleObserver, OnStart, OnStop, 49 DevicePreferenceCallback { 50 51 private static final String KEY = "connected_device_list"; 52 53 @VisibleForTesting 54 PreferenceGroup mPreferenceGroup; 55 private BluetoothDeviceUpdater mBluetoothDeviceUpdater; 56 private ConnectedUsbDeviceUpdater mConnectedUsbDeviceUpdater; 57 private DockUpdater mConnectedDockUpdater; 58 private StylusDeviceUpdater mStylusDeviceUpdater; 59 private final PackageManager mPackageManager; 60 private final InputManager mInputManager; 61 ConnectedDeviceGroupController(Context context)62 public ConnectedDeviceGroupController(Context context) { 63 super(context, KEY); 64 mPackageManager = context.getPackageManager(); 65 mInputManager = context.getSystemService(InputManager.class); 66 } 67 68 @Override onStart()69 public void onStart() { 70 if (mBluetoothDeviceUpdater != null) { 71 mBluetoothDeviceUpdater.registerCallback(); 72 mBluetoothDeviceUpdater.refreshPreference(); 73 } 74 75 if (mConnectedUsbDeviceUpdater != null) { 76 mConnectedUsbDeviceUpdater.registerCallback(); 77 } 78 79 if (mConnectedDockUpdater != null) { 80 mConnectedDockUpdater.registerCallback(); 81 } 82 83 if (mStylusDeviceUpdater != null) { 84 mStylusDeviceUpdater.registerCallback(); 85 } 86 } 87 88 @Override onStop()89 public void onStop() { 90 if (mBluetoothDeviceUpdater != null) { 91 mBluetoothDeviceUpdater.unregisterCallback(); 92 } 93 94 if (mConnectedUsbDeviceUpdater != null) { 95 mConnectedUsbDeviceUpdater.unregisterCallback(); 96 } 97 98 if (mConnectedDockUpdater != null) { 99 mConnectedDockUpdater.unregisterCallback(); 100 } 101 102 if (mStylusDeviceUpdater != null) { 103 mStylusDeviceUpdater.unregisterCallback(); 104 } 105 } 106 107 @Override displayPreference(PreferenceScreen screen)108 public void displayPreference(PreferenceScreen screen) { 109 super.displayPreference(screen); 110 111 mPreferenceGroup = screen.findPreference(KEY); 112 mPreferenceGroup.setVisible(false); 113 114 if (isAvailable()) { 115 final Context context = screen.getContext(); 116 if (mBluetoothDeviceUpdater != null) { 117 mBluetoothDeviceUpdater.setPrefContext(context); 118 mBluetoothDeviceUpdater.forceUpdate(); 119 } 120 121 if (mConnectedUsbDeviceUpdater != null) { 122 mConnectedUsbDeviceUpdater.initUsbPreference(context); 123 } 124 125 if (mConnectedDockUpdater != null) { 126 mConnectedDockUpdater.setPreferenceContext(context); 127 mConnectedDockUpdater.forceUpdate(); 128 } 129 130 if (mStylusDeviceUpdater != null) { 131 mStylusDeviceUpdater.setPreferenceContext(context); 132 mStylusDeviceUpdater.forceUpdate(); 133 } 134 } 135 } 136 137 @Override getAvailabilityStatus()138 public int getAvailabilityStatus() { 139 return (hasBluetoothFeature() 140 || hasUsbFeature() 141 || hasUsiStylusFeature() 142 || mConnectedDockUpdater != null) 143 ? AVAILABLE_UNSEARCHABLE 144 : UNSUPPORTED_ON_DEVICE; 145 } 146 147 @Override getPreferenceKey()148 public String getPreferenceKey() { 149 return KEY; 150 } 151 152 @Override onDeviceAdded(Preference preference)153 public void onDeviceAdded(Preference preference) { 154 if (mPreferenceGroup.getPreferenceCount() == 0) { 155 mPreferenceGroup.setVisible(true); 156 } 157 mPreferenceGroup.addPreference(preference); 158 } 159 160 @Override onDeviceRemoved(Preference preference)161 public void onDeviceRemoved(Preference preference) { 162 mPreferenceGroup.removePreference(preference); 163 if (mPreferenceGroup.getPreferenceCount() == 0) { 164 mPreferenceGroup.setVisible(false); 165 } 166 } 167 168 @VisibleForTesting init(BluetoothDeviceUpdater bluetoothDeviceUpdater, ConnectedUsbDeviceUpdater connectedUsbDeviceUpdater, DockUpdater connectedDockUpdater, StylusDeviceUpdater connectedStylusDeviceUpdater)169 void init(BluetoothDeviceUpdater bluetoothDeviceUpdater, 170 ConnectedUsbDeviceUpdater connectedUsbDeviceUpdater, 171 DockUpdater connectedDockUpdater, 172 StylusDeviceUpdater connectedStylusDeviceUpdater) { 173 174 mBluetoothDeviceUpdater = bluetoothDeviceUpdater; 175 mConnectedUsbDeviceUpdater = connectedUsbDeviceUpdater; 176 mConnectedDockUpdater = connectedDockUpdater; 177 mStylusDeviceUpdater = connectedStylusDeviceUpdater; 178 } 179 init(DashboardFragment fragment)180 public void init(DashboardFragment fragment) { 181 final Context context = fragment.getContext(); 182 DockUpdaterFeatureProvider dockUpdaterFeatureProvider = 183 FeatureFactory.getFactory(context).getDockUpdaterFeatureProvider(); 184 final DockUpdater connectedDockUpdater = 185 dockUpdaterFeatureProvider.getConnectedDockUpdater(context, this); 186 init(hasBluetoothFeature() 187 ? new ConnectedBluetoothDeviceUpdater(context, this, 188 fragment.getMetricsCategory()) 189 : null, 190 hasUsbFeature() 191 ? new ConnectedUsbDeviceUpdater(context, fragment, this) 192 : null, 193 connectedDockUpdater, 194 hasUsiStylusFeature() 195 ? new StylusDeviceUpdater(context, fragment, this) 196 : null); 197 } 198 hasBluetoothFeature()199 private boolean hasBluetoothFeature() { 200 return mPackageManager.hasSystemFeature(PackageManager.FEATURE_BLUETOOTH); 201 } 202 hasUsbFeature()203 private boolean hasUsbFeature() { 204 return mPackageManager.hasSystemFeature(PackageManager.FEATURE_USB_ACCESSORY) 205 || mPackageManager.hasSystemFeature(PackageManager.FEATURE_USB_HOST); 206 } 207 hasUsiStylusFeature()208 private boolean hasUsiStylusFeature() { 209 if (!FeatureFlagUtils.isEnabled(mContext, 210 FeatureFlagUtils.SETTINGS_SHOW_STYLUS_PREFERENCES)) { 211 return false; 212 } 213 214 for (int deviceId : mInputManager.getInputDeviceIds()) { 215 InputDevice device = mInputManager.getInputDevice(deviceId); 216 if (device != null 217 && device.supportsSource(InputDevice.SOURCE_STYLUS) 218 && !device.isExternal()) { 219 return true; 220 } 221 } 222 return false; 223 } 224 } 225