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/*
* Copyright (C) 2021 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.customization.model.mode;
import static android.Manifest.permission.MODIFY_DAY_NIGHT_MODE;
import static android.content.pm.PackageManager.PERMISSION_GRANTED;
import static android.os.PowerManager.ACTION_POWER_SAVE_MODE_CHANGED;
import android.app.UiModeManager;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Handler;
import android.os.Looper;
import android.os.PowerManager;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.widget.Switch;
import android.widget.Toast;
import androidx.annotation.MainThread;
import androidx.core.content.ContextCompat;
import androidx.lifecycle.Lifecycle;
import androidx.lifecycle.LifecycleObserver;
import androidx.lifecycle.OnLifecycleEvent;
import com.android.customization.module.logging.ThemesUserEventLogger;
import com.android.customization.picker.mode.DarkModeSectionView;
import com.android.themepicker.R;
import com.android.wallpaper.model.CustomizationSectionController;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
/** Section for dark theme toggle that controls if this section will be shown visually. */
public class DarkModeSectionController implements
CustomizationSectionController<DarkModeSectionView>, LifecycleObserver {
private static final ExecutorService sExecutorService = Executors.newSingleThreadExecutor();
private final Lifecycle mLifecycle;
private final PowerManager mPowerManager;
private final BatterySaverStateReceiver mBatterySaverStateReceiver =
new BatterySaverStateReceiver();
private Context mContext;
private DarkModeSectionView mDarkModeSectionView;
private final DarkModeSnapshotRestorer mSnapshotRestorer;
private final ThemesUserEventLogger mThemesUserEventLogger;
public DarkModeSectionController(
Context context,
Lifecycle lifecycle,
DarkModeSnapshotRestorer snapshotRestorer,
ThemesUserEventLogger themesUserEventLogger) {
mContext = context;
mLifecycle = lifecycle;
mPowerManager = context.getSystemService(PowerManager.class);
mLifecycle.addObserver(this);
mSnapshotRestorer = snapshotRestorer;
mThemesUserEventLogger = themesUserEventLogger;
}
@OnLifecycleEvent(Lifecycle.Event.ON_START)
@MainThread
public void onStart() {
sExecutorService.submit(() -> {
if (mContext != null && mLifecycle.getCurrentState().isAtLeast(
Lifecycle.State.STARTED)) {
mContext.registerReceiver(mBatterySaverStateReceiver,
new IntentFilter(ACTION_POWER_SAVE_MODE_CHANGED));
}
});
}
@OnLifecycleEvent(Lifecycle.Event.ON_STOP)
@MainThread
public void onStop() {
sExecutorService.submit(() -> {
if (mContext != null && mBatterySaverStateReceiver != null) {
mContext.unregisterReceiver(mBatterySaverStateReceiver);
}
});
}
@Override
public void release() {
mLifecycle.removeObserver(this);
mContext = null;
}
@Override
public boolean isAvailable(Context context) {
if (context == null) {
return false;
}
return ContextCompat.checkSelfPermission(context, MODIFY_DAY_NIGHT_MODE)
== PERMISSION_GRANTED;
}
@Override
public DarkModeSectionView createView(Context context) {
mDarkModeSectionView = (DarkModeSectionView) LayoutInflater.from(
context).inflate(R.layout.dark_mode_section_view, /* root= */ null);
mDarkModeSectionView.setViewListener(this::onViewActivated);
PowerManager pm = context.getSystemService(PowerManager.class);
mDarkModeSectionView.setEnabled(!pm.isPowerSaveMode());
return mDarkModeSectionView;
}
private void onViewActivated(Context context, boolean viewActivated) {
if (context == null) {
return;
}
Switch switchView = mDarkModeSectionView.findViewById(R.id.dark_mode_toggle);
if (!switchView.isEnabled()) {
Toast disableToast = Toast.makeText(mContext,
mContext.getString(R.string.mode_disabled_msg), Toast.LENGTH_SHORT);
disableToast.show();
return;
}
UiModeManager uiModeManager = context.getSystemService(UiModeManager.class);
int shortDelay = context.getResources().getInteger(android.R.integer.config_shortAnimTime);
new Handler(Looper.getMainLooper()).postDelayed(
() -> {
mDarkModeSectionView.announceForAccessibility(
context.getString(R.string.mode_changed));
uiModeManager.setNightModeActivated(viewActivated);
mThemesUserEventLogger.logDarkThemeApplied(viewActivated);
mSnapshotRestorer.store(viewActivated);
},
/* delayMillis= */ shortDelay);
}
private class BatterySaverStateReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
if (TextUtils.equals(intent.getAction(), ACTION_POWER_SAVE_MODE_CHANGED)
&& mDarkModeSectionView != null) {
mDarkModeSectionView.setEnabled(!mPowerManager.isPowerSaveMode());
}
}
}
}
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