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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.ConnectedBluetoothDeviceUpdater;
import com.android.settings.connecteddevice.dock.DockUpdater;
import com.android.settings.connecteddevice.usb.ConnectedUsbDeviceUpdater;
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 androidx.preference.PreferenceGroup} for all
* connected devices. It uses {@link DevicePreferenceCallback} to add/remove {@link Preference}
*/
public class ConnectedDeviceGroupController extends BasePreferenceController
implements PreferenceControllerMixin, LifecycleObserver, OnStart, OnStop,
DevicePreferenceCallback {
private static final String KEY = "connected_device_list";
@VisibleForTesting
PreferenceGroup mPreferenceGroup;
private BluetoothDeviceUpdater mBluetoothDeviceUpdater;
private ConnectedUsbDeviceUpdater mConnectedUsbDeviceUpdater;
private DockUpdater mConnectedDockUpdater;
public ConnectedDeviceGroupController(Context context) {
super(context, KEY);
}
@Override
public void onStart() {
mBluetoothDeviceUpdater.registerCallback();
mConnectedUsbDeviceUpdater.registerCallback();
mConnectedDockUpdater.registerCallback();
mBluetoothDeviceUpdater.refreshPreference();
}
@Override
public void onStop() {
mConnectedUsbDeviceUpdater.unregisterCallback();
mBluetoothDeviceUpdater.unregisterCallback();
mConnectedDockUpdater.unregisterCallback();
}
@Override
public void displayPreference(PreferenceScreen screen) {
super.displayPreference(screen);
mPreferenceGroup = screen.findPreference(KEY);
mPreferenceGroup.setVisible(false);
if (isAvailable()) {
final Context context = screen.getContext();
mBluetoothDeviceUpdater.setPrefContext(context);
mBluetoothDeviceUpdater.forceUpdate();
mConnectedUsbDeviceUpdater.initUsbPreference(context);
mConnectedDockUpdater.setPreferenceContext(context);
mConnectedDockUpdater.forceUpdate();
}
}
@Override
public int getAvailabilityStatus() {
final PackageManager packageManager = mContext.getPackageManager();
return (packageManager.hasSystemFeature(PackageManager.FEATURE_BLUETOOTH)
|| packageManager.hasSystemFeature(PackageManager.FEATURE_USB_ACCESSORY)
|| packageManager.hasSystemFeature(PackageManager.FEATURE_USB_HOST)
|| mConnectedDockUpdater != null)
? AVAILABLE_UNSEARCHABLE
: 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);
}
}
@VisibleForTesting
public void init(BluetoothDeviceUpdater bluetoothDeviceUpdater,
ConnectedUsbDeviceUpdater connectedUsbDeviceUpdater,
DockUpdater connectedDockUpdater) {
mBluetoothDeviceUpdater = bluetoothDeviceUpdater;
mConnectedUsbDeviceUpdater = connectedUsbDeviceUpdater;
mConnectedDockUpdater = connectedDockUpdater;
}
public void init(DashboardFragment fragment) {
final Context context = fragment.getContext();
DockUpdaterFeatureProvider dockUpdaterFeatureProvider =
FeatureFactory.getFactory(context).getDockUpdaterFeatureProvider();
final DockUpdater connectedDockUpdater =
dockUpdaterFeatureProvider.getConnectedDockUpdater(context, this);
init(new ConnectedBluetoothDeviceUpdater(context, fragment, this),
new ConnectedUsbDeviceUpdater(context, fragment, this),
connectedDockUpdater);
}
}
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