| /* |
| * Copyright 2018 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.car.settings.bluetooth; |
| |
| import android.content.Context; |
| import android.graphics.drawable.Drawable; |
| import android.os.SystemProperties; |
| import android.util.Pair; |
| |
| import androidx.annotation.NonNull; |
| import androidx.preference.Preference; |
| |
| import com.android.car.apps.common.util.Themes; |
| import com.android.car.settings.R; |
| import com.android.car.settings.common.ButtonPreference; |
| import com.android.settingslib.bluetooth.CachedBluetoothDevice; |
| |
| /** |
| * Preference which represents a specific {@link CachedBluetoothDevice}. The title, icon, and |
| * summary are kept in sync with the device when the preference is shown. When the device is busy, |
| * the preference is disabled. The equality and sort order of this preference is determined by the |
| * underlying cached device {@link CachedBluetoothDevice#equals(Object)} and {@link |
| * CachedBluetoothDevice#compareTo(CachedBluetoothDevice)}. If two devices are considered equal, the |
| * default preference sort ordering is used (see {@link #compareTo(Preference)}. |
| */ |
| public class BluetoothDevicePreference extends ButtonPreference { |
| private static final String BLUETOOTH_SHOW_DEVICES_WITHOUT_NAMES_PROPERTY = |
| "persist.bluetooth.showdeviceswithoutnames"; |
| |
| private final CachedBluetoothDevice mCachedDevice; |
| private final boolean mShowDevicesWithoutNames; |
| private final CachedBluetoothDevice.Callback mDeviceCallback = this::refreshUi; |
| |
| public BluetoothDevicePreference(Context context, CachedBluetoothDevice cachedDevice) { |
| super(context); |
| mCachedDevice = cachedDevice; |
| mShowDevicesWithoutNames = SystemProperties.getBoolean( |
| BLUETOOTH_SHOW_DEVICES_WITHOUT_NAMES_PROPERTY, false); |
| // Hide action by default. |
| showAction(false); |
| } |
| |
| /** |
| * Returns the {@link CachedBluetoothDevice} represented by this preference. |
| */ |
| public CachedBluetoothDevice getCachedDevice() { |
| return mCachedDevice; |
| } |
| |
| @Override |
| public void onAttached() { |
| super.onAttached(); |
| mCachedDevice.registerCallback(mDeviceCallback); |
| refreshUi(); |
| } |
| |
| @Override |
| public void onDetached() { |
| super.onDetached(); |
| mCachedDevice.unregisterCallback(mDeviceCallback); |
| } |
| |
| private void refreshUi() { |
| setTitle(mCachedDevice.getName()); |
| setSummary(mCachedDevice.getCarConnectionSummary()); |
| |
| final Pair<Drawable, String> pair = com.android.settingslib.bluetooth.Utils |
| .getBtClassDrawableWithDescription(getContext(), mCachedDevice); |
| if (pair.first != null) { |
| setIcon(pair.first); |
| getIcon().setTintList(Themes.getAttrColorStateList(getContext(), R.attr.iconColor)); |
| } |
| |
| setEnabled(!mCachedDevice.isBusy()); |
| setVisible(mShowDevicesWithoutNames || mCachedDevice.hasHumanReadableName()); |
| |
| // Notify since the ordering may have changed. |
| notifyHierarchyChanged(); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (!(o instanceof BluetoothDevicePreference)) { |
| return false; |
| } |
| return mCachedDevice.equals(((BluetoothDevicePreference) o).mCachedDevice); |
| } |
| |
| @Override |
| public int hashCode() { |
| return mCachedDevice.hashCode(); |
| } |
| |
| @Override |
| public int compareTo(@NonNull Preference another) { |
| if (!(another instanceof BluetoothDevicePreference)) { |
| // Rely on default sort. |
| return super.compareTo(another); |
| } |
| |
| return mCachedDevice |
| .compareTo(((BluetoothDevicePreference) another).mCachedDevice); |
| } |
| } |