/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.android.settings.connecteddevice;
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import android.content.Context;
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import android.content.pm.PackageManager;
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import androidx.annotation.VisibleForTesting;
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import androidx.preference.Preference;
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import androidx.preference.PreferenceGroup;
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import androidx.preference.PreferenceScreen;
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import com.android.settings.bluetooth.BluetoothDeviceUpdater;
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import com.android.settings.bluetooth.SavedBluetoothDeviceUpdater;
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import com.android.settings.connecteddevice.dock.DockUpdater;
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import com.android.settings.core.BasePreferenceController;
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import com.android.settings.core.PreferenceControllerMixin;
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import com.android.settings.dashboard.DashboardFragment;
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import com.android.settings.overlay.DockUpdaterFeatureProvider;
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import com.android.settings.overlay.FeatureFactory;
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import com.android.settingslib.core.lifecycle.LifecycleObserver;
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import com.android.settingslib.core.lifecycle.events.OnStart;
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import com.android.settingslib.core.lifecycle.events.OnStop;
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/**
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* Controller to maintain the {@link PreferenceGroup} for all
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* saved devices. It uses {@link DevicePreferenceCallback} to add/remove {@link Preference}
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*/
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public class SavedDeviceGroupController extends BasePreferenceController
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implements PreferenceControllerMixin, LifecycleObserver, OnStart, OnStop,
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DevicePreferenceCallback {
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private static final String KEY = "saved_device_list";
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@VisibleForTesting
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PreferenceGroup mPreferenceGroup;
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private BluetoothDeviceUpdater mBluetoothDeviceUpdater;
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private DockUpdater mSavedDockUpdater;
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public SavedDeviceGroupController(Context context) {
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super(context, KEY);
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DockUpdaterFeatureProvider dockUpdaterFeatureProvider =
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FeatureFactory.getFactory(context).getDockUpdaterFeatureProvider();
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mSavedDockUpdater =
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dockUpdaterFeatureProvider.getSavedDockUpdater(context, this);
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}
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@Override
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public void onStart() {
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mBluetoothDeviceUpdater.registerCallback();
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mSavedDockUpdater.registerCallback();
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}
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@Override
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public void onStop() {
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mBluetoothDeviceUpdater.unregisterCallback();
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mSavedDockUpdater.unregisterCallback();
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}
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@Override
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public void displayPreference(PreferenceScreen screen) {
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mPreferenceGroup = screen.findPreference(KEY);
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mPreferenceGroup.setVisible(false);
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if (isAvailable()) {
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final Context context = screen.getContext();
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mBluetoothDeviceUpdater.setPrefContext(context);
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mBluetoothDeviceUpdater.forceUpdate();
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mSavedDockUpdater.setPreferenceContext(context);
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mSavedDockUpdater.forceUpdate();
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}
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}
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@Override
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public int getAvailabilityStatus() {
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return (mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH)
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|| mSavedDockUpdater != null)
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? AVAILABLE
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: UNSUPPORTED_ON_DEVICE;
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}
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@Override
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public String getPreferenceKey() {
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return KEY;
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}
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@Override
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public void onDeviceAdded(Preference preference) {
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if (mPreferenceGroup.getPreferenceCount() == 0) {
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mPreferenceGroup.setVisible(true);
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}
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mPreferenceGroup.addPreference(preference);
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}
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@Override
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public void onDeviceRemoved(Preference preference) {
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mPreferenceGroup.removePreference(preference);
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if (mPreferenceGroup.getPreferenceCount() == 0) {
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mPreferenceGroup.setVisible(false);
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}
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}
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public void init(DashboardFragment fragment) {
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mBluetoothDeviceUpdater = new SavedBluetoothDeviceUpdater(fragment.getContext(),
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fragment, SavedDeviceGroupController.this);
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}
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@VisibleForTesting
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public void setBluetoothDeviceUpdater(BluetoothDeviceUpdater bluetoothDeviceUpdater) {
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mBluetoothDeviceUpdater = bluetoothDeviceUpdater;
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}
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@VisibleForTesting
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public void setSavedDockUpdater(DockUpdater savedDockUpdater) {
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mSavedDockUpdater = savedDockUpdater;
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}
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}
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