| /* |
| * Copyright 2020 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.calendar; |
| |
| import android.content.ContentResolver; |
| import android.os.HandlerThread; |
| import android.util.Log; |
| |
| import androidx.annotation.Nullable; |
| import androidx.lifecycle.ViewModel; |
| |
| import com.android.car.calendar.common.EventDescriptions; |
| import com.android.car.calendar.common.EventLocations; |
| import com.android.car.calendar.common.EventsLiveData; |
| |
| import java.time.Clock; |
| import java.util.Locale; |
| |
| class CarCalendarViewModel extends ViewModel { |
| private static final String TAG = "CarCalendarViewModel"; |
| private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG); |
| |
| private final HandlerThread mHandlerThread = new HandlerThread("CarCalendarBackground"); |
| private final Clock mClock; |
| private final ContentResolver mResolver; |
| private final Locale mLocale; |
| |
| @Nullable private EventsLiveData mEventsLiveData; |
| |
| CarCalendarViewModel(ContentResolver resolver, Locale locale, Clock clock) { |
| if (DEBUG) Log.d(TAG, "Creating view model"); |
| mResolver = resolver; |
| mHandlerThread.start(); |
| mLocale = locale; |
| mClock = clock; |
| } |
| |
| /** Creates an {@link EventsLiveData} lazily and always returns the same instance. */ |
| EventsLiveData getEventsLiveData() { |
| if (mEventsLiveData == null) { |
| mEventsLiveData = |
| new EventsLiveData( |
| mClock, |
| mHandlerThread.getThreadHandler(), |
| mResolver, |
| new EventDescriptions(mLocale), |
| new EventLocations()); |
| } |
| return mEventsLiveData; |
| } |
| |
| @Override |
| protected void onCleared() { |
| super.onCleared(); |
| mHandlerThread.quitSafely(); |
| } |
| } |