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/*
* 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.content.pm.PackageManager;
import android.os.Bundle;
import android.os.StrictMode;
import android.util.Log;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.annotation.VisibleForTesting;
import androidx.fragment.app.FragmentActivity;
import androidx.lifecycle.ViewModel;
import androidx.lifecycle.ViewModelProvider;
import com.android.car.calendar.common.CalendarFormatter;
import com.android.car.calendar.common.Dialer;
import com.android.car.calendar.common.Navigator;
import com.google.common.collect.HashMultimap;
import com.google.common.collect.Multimap;
import java.time.Clock;
import java.util.Collection;
import java.util.Locale;
/** The main Activity for the Car Calendar App. */
public class CarCalendarActivity extends FragmentActivity {
private static final String TAG = "CarCalendarActivity";
private static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
private final Multimap<String, Runnable> mPermissionToCallbacks = HashMultimap.create();
// Allows tests to replace certain dependencies.
@VisibleForTesting Dependencies mDependencies;
@Override
protected void onCreate(@Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
maybeEnableStrictMode();
// Tests can set fake dependencies before onCreate.
if (mDependencies == null) {
mDependencies = new Dependencies(
Locale.getDefault(), Clock.systemDefaultZone(), getContentResolver());
}
CarCalendarViewModel carCalendarViewModel =
new ViewModelProvider(
this,
new CarCalendarViewModelFactory(
mDependencies.mResolver,
mDependencies.mLocale,
mDependencies.mClock))
.get(CarCalendarViewModel.class);
CarCalendarView carCalendarView =
new CarCalendarView(
this,
carCalendarViewModel,
new Navigator(this),
new Dialer(this),
new CalendarFormatter(
this.getApplicationContext(),
mDependencies.mLocale,
mDependencies.mClock));
carCalendarView.show();
}
private void maybeEnableStrictMode() {
if (DEBUG) {
Log.i(TAG, "Enabling strict mode");
StrictMode.setThreadPolicy(
new StrictMode.ThreadPolicy.Builder()
.detectAll()
.penaltyLog()
.penaltyDeath()
.build());
StrictMode.setVmPolicy(
new StrictMode.VmPolicy.Builder()
.detectAll()
.penaltyLog()
.penaltyDeath()
.build());
}
}
/**
* Calls the given runnable only if the required permission is granted.
*
* <p>If the permission is already granted then the runnable is called immediately. Otherwise
* the runnable is retained and the permission is requested. If the permission is granted the
* runnable will be called otherwise it will be discarded.
*/
void runWithPermission(String permission, Runnable runnable) {
if (checkSelfPermission(permission) == PackageManager.PERMISSION_GRANTED) {
// Run immediately if we already have permission.
if (DEBUG) Log.d(TAG, "Running with " + permission);
runnable.run();
} else {
// Keep the runnable until the permission is granted.
if (DEBUG) Log.d(TAG, "Waiting for " + permission);
mPermissionToCallbacks.put(permission, runnable);
requestPermissions(new String[] {permission}, /* requestCode= */ 0);
}
}
@Override
public void onRequestPermissionsResult(
int requestCode, String[] permissions, int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
for (int i = 0; i < permissions.length; i++) {
String permission = permissions[i];
int grantResult = grantResults[i];
Collection<Runnable> callbacks = mPermissionToCallbacks.removeAll(permission);
if (grantResult == PackageManager.PERMISSION_GRANTED) {
Log.e(TAG, "Permission " + permission + " granted");
callbacks.forEach(Runnable::run);
} else {
// TODO(jdp) Also allow a denied runnable.
Log.e(TAG, "Permission " + permission + " not granted");
}
}
}
private static class CarCalendarViewModelFactory implements ViewModelProvider.Factory {
private final ContentResolver mResolver;
private final Locale mLocale;
private final Clock mClock;
CarCalendarViewModelFactory(ContentResolver resolver, Locale locale, Clock clock) {
mResolver = resolver;
mLocale = locale;
mClock = clock;
}
@SuppressWarnings("unchecked")
@NonNull
@Override
public <T extends ViewModel> T create(@NonNull Class<T> aClass) {
return (T) new CarCalendarViewModel(mResolver, mLocale, mClock);
}
}
static class Dependencies {
private final Locale mLocale;
private final Clock mClock;
private final ContentResolver mResolver;
Dependencies(Locale locale, Clock clock, ContentResolver resolver) {
mLocale = locale;
mClock = clock;
mResolver = resolver;
}
}
}
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