| /* |
| * 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.settings.bluetooth; |
| |
| 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.settingslib.bluetooth.CachedBluetoothDevice; |
| import com.android.settings.bluetooth.BluetoothDeviceUpdater; |
| import com.android.settings.bluetooth.SavedBluetoothDeviceUpdater; |
| import com.android.settings.connecteddevice.dock.DockUpdater; |
| import com.android.settings.connecteddevice.DevicePreferenceCallback; |
| import com.android.settings.core.BasePreferenceController; |
| import com.android.settings.dashboard.DashboardFragment; |
| import com.android.settings.overlay.FeatureFactory; |
| import com.android.settingslib.core.lifecycle.LifecycleObserver; |
| import com.android.settingslib.core.lifecycle.Lifecycle; |
| import com.android.settingslib.core.lifecycle.events.OnStart; |
| import com.android.settingslib.core.lifecycle.events.OnStop; |
| import android.util.Log; |
| import androidx.annotation.Keep; |
| |
| @Keep |
| public class BADevicePreferenceController extends BasePreferenceController |
| implements LifecycleObserver, OnStart, OnStop, BleBroadcastSourceInfoPreferenceCallback { |
| |
| private static final String TAG = "BADevicePreferenceController"; |
| //Up to 3 Elements can be viewed here |
| private static final int MAX_DEVICE_NUM = 3; |
| |
| private PreferenceGroup mPreferenceGroup; |
| private BluetoothBroadcastSourceInfoEntries mBleSourceInfoUpdater; |
| private int mPreferenceSize; |
| private CachedBluetoothDevice mCachedDevice; |
| |
| public BADevicePreferenceController(Context context, Lifecycle lifecycle, String preferenceKey) { |
| super(context, preferenceKey); |
| |
| lifecycle.addObserver(this); |
| BroadcastScanAssistanceUtils.debug(TAG, "constructor: KEY" + preferenceKey); |
| } |
| |
| @Override |
| public int getAvailabilityStatus() { |
| return (mContext.getPackageManager().hasSystemFeature(PackageManager.FEATURE_BLUETOOTH) |
| ) |
| ? AVAILABLE |
| : CONDITIONALLY_UNAVAILABLE; |
| } |
| |
| @Override |
| public String getPreferenceKey() { |
| return new String("added_sources"); |
| } |
| |
| @Override |
| public void displayPreference(PreferenceScreen screen) { |
| BroadcastScanAssistanceUtils.debug(TAG, "displayPreference"); |
| super.displayPreference(screen); |
| mPreferenceGroup = screen.findPreference(getPreferenceKey()); |
| mPreferenceGroup.setVisible(false); |
| |
| if (isAvailable()) { |
| BroadcastScanAssistanceUtils.debug(TAG, "registering wth BleSrcInfo updaters"); |
| final Context context = screen.getContext(); |
| if (mBleSourceInfoUpdater != null) { |
| mBleSourceInfoUpdater.setPrefContext(context); |
| } |
| } |
| } |
| |
| @Override |
| public void onStart() { |
| if (mBleSourceInfoUpdater != null) { |
| mBleSourceInfoUpdater.registerCallback(); |
| } |
| } |
| |
| @Override |
| public void onStop() { |
| if (mBleSourceInfoUpdater != null) { |
| mBleSourceInfoUpdater.unregisterCallback(); |
| } |
| } |
| |
| public void init(DashboardFragment fragment, CachedBluetoothDevice device) { |
| BroadcastScanAssistanceUtils.debug(TAG, "Init"); |
| mCachedDevice = device; |
| mBleSourceInfoUpdater = new BluetoothBroadcastSourceInfoEntries(fragment.getContext(), |
| fragment, BADevicePreferenceController.this, |
| device); |
| mPreferenceSize = 0; |
| } |
| |
| @Override |
| public void onBroadcastSourceInfoAdded(Preference preference) { |
| BroadcastScanAssistanceUtils.debug(TAG, "onBroadcastSourceInfoAdded"); |
| |
| if (mPreferenceSize < MAX_DEVICE_NUM) { |
| boolean ret = mPreferenceGroup.addPreference(preference); |
| BroadcastScanAssistanceUtils.debug(TAG, "addPreference returns" + ret); |
| mPreferenceSize++; |
| } |
| updatePreferenceVisiblity(); |
| } |
| |
| @Override |
| public void onBroadcastSourceInfoRemoved(Preference preference) { |
| BroadcastScanAssistanceUtils.debug(TAG, "onBroadcastSourceInfoRemoved"); |
| mPreferenceSize--; |
| boolean ret = mPreferenceGroup.removePreference(preference); |
| BroadcastScanAssistanceUtils.debug(TAG, "removePreference returns " + ret); |
| updatePreferenceVisiblity(); |
| } |
| |
| @VisibleForTesting |
| void setPreferenceGroup(PreferenceGroup preferenceGroup) { |
| mPreferenceGroup = preferenceGroup; |
| } |
| |
| @VisibleForTesting |
| void updatePreferenceVisiblity() { |
| BroadcastScanAssistanceUtils.debug(TAG, "updatePreferenceVisiblity:" + mPreferenceSize); |
| mPreferenceGroup.setVisible(mPreferenceSize > 0); |
| } |
| } |