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/*
* Copyright (C) 2017 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.settings.connecteddevice;
import android.content.Context;
import android.content.pm.PackageManager;
import androidx.annotation.VisibleForTesting;
import androidx.preference.Preference;
import androidx.preference.PreferenceGroup;
import androidx.preference.PreferenceScreen;
import com.android.settings.bluetooth.BluetoothDeviceUpdater;
import com.android.settings.bluetooth.SavedBluetoothDeviceUpdater;
import com.android.settings.connecteddevice.dock.DockUpdater;
import com.android.settings.core.BasePreferenceController;
import com.android.settings.core.PreferenceControllerMixin;
import com.android.settings.dashboard.DashboardFragment;
import com.android.settings.overlay.DockUpdaterFeatureProvider;
import com.android.settings.overlay.FeatureFactory;
import com.android.settingslib.core.lifecycle.LifecycleObserver;
import com.android.settingslib.core.lifecycle.events.OnStart;
import com.android.settingslib.core.lifecycle.events.OnStop;
/**
* Controller to maintain the {@link PreferenceGroup} for all
* saved devices. It uses {@link DevicePreferenceCallback} to add/remove {@link Preference}
*/
public class SavedDeviceGroupController extends BasePreferenceController
implements PreferenceControllerMixin, LifecycleObserver, OnStart, OnStop,
DevicePreferenceCallback {
private static final String KEY = "saved_device_list";
@VisibleForTesting
PreferenceGroup mPreferenceGroup;
private BluetoothDeviceUpdater mBluetoothDeviceUpdater;
private DockUpdater mSavedDockUpdater;
public SavedDeviceGroupController(Context context) {
super(context, KEY);
DockUpdaterFeatureProvider dockUpdaterFeatureProvider =
FeatureFactory.getFactory(context).getDockUpdaterFeatureProvider();
mSavedDockUpdater =
dockUpdaterFeatureProvider.getSavedDockUpdater(context, this);
}
@Override
public void onStart() {
mBluetoothDeviceUpdater.registerCallback();
mSavedDockUpdater.registerCallback();
mBluetoothDeviceUpdater.refreshPreference();
}
@Override
public void onStop() {
mBluetoothDeviceUpdater.unregisterCallback();
mSavedDockUpdater.unregisterCallback();
}
@Override
public void displayPreference(PreferenceScreen screen) {
mPreferenceGroup = screen.findPreference(KEY);
mPreferenceGroup.setVisible(false);
if (isAvailable()) {
final Context context = screen.getContext();
mBluetoothDeviceUpdater.setPrefContext(context);
mBluetoothDeviceUpdater.forceUpdate();
mSavedDockUpdater.setPreferenceContext(context);
mSavedDockUpdater.forceUpdate();
}
}
@Override
public int getAvailabilityStatus() {
return (mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH)
|| mSavedDockUpdater != null)
? AVAILABLE
: UNSUPPORTED_ON_DEVICE;
}
@Override
public String getPreferenceKey() {
return KEY;
}
@Override
public void onDeviceAdded(Preference preference) {
if (mPreferenceGroup.getPreferenceCount() == 0) {
mPreferenceGroup.setVisible(true);
}
mPreferenceGroup.addPreference(preference);
}
@Override
public void onDeviceRemoved(Preference preference) {
mPreferenceGroup.removePreference(preference);
if (mPreferenceGroup.getPreferenceCount() == 0) {
mPreferenceGroup.setVisible(false);
}
}
public void init(DashboardFragment fragment) {
mBluetoothDeviceUpdater = new SavedBluetoothDeviceUpdater(fragment.getContext(),
fragment, SavedDeviceGroupController.this);
}
@VisibleForTesting
public void setBluetoothDeviceUpdater(BluetoothDeviceUpdater bluetoothDeviceUpdater) {
mBluetoothDeviceUpdater = bluetoothDeviceUpdater;
}
@VisibleForTesting
public void setSavedDockUpdater(DockUpdater savedDockUpdater) {
mSavedDockUpdater = savedDockUpdater;
}
}
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