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/*
* Copyright (C) 2016 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.display;
import android.content.Context;
import android.hardware.display.ColorDisplayManager;
import android.hardware.display.NightDisplayListener;
import androidx.preference.Preference;
import androidx.preference.PreferenceScreen;
import com.android.settings.R;
import com.android.settings.core.TogglePreferenceController;
import com.android.settingslib.PrimarySwitchPreference;
import com.android.settingslib.core.lifecycle.LifecycleObserver;
import com.android.settingslib.core.lifecycle.events.OnStart;
import com.android.settingslib.core.lifecycle.events.OnStop;
/** A controller can control the behavior of night display setting. */
public class NightDisplayPreferenceController extends TogglePreferenceController
implements NightDisplayListener.Callback, LifecycleObserver, OnStart, OnStop {
private final ColorDisplayManager mColorDisplayManager;
private final NightDisplayListener mNightDisplayListener;
private final NightDisplayTimeFormatter mTimeFormatter;
private PrimarySwitchPreference mPreference;
public NightDisplayPreferenceController(Context context, String key) {
super(context, key);
mColorDisplayManager = context.getSystemService(ColorDisplayManager.class);
mNightDisplayListener = new NightDisplayListener(context);
mTimeFormatter = new NightDisplayTimeFormatter(context);
}
public static boolean isSuggestionComplete(Context context) {
final boolean isEnabled = context.getResources().getBoolean(
R.bool.config_night_light_suggestion_enabled);
// The suggestion is always complete if not enabled.
if (!isEnabled) {
return true;
}
final ColorDisplayManager manager = context.getSystemService(ColorDisplayManager.class);
return manager.getNightDisplayAutoMode() != ColorDisplayManager.AUTO_MODE_DISABLED;
}
@Override
public void onStart() {
// Listen for changes only while attached.
mNightDisplayListener.setCallback(this);
}
@Override
public void onStop() {
// Stop listening for state changes.
mNightDisplayListener.setCallback(null);
}
@Override
public void displayPreference(PreferenceScreen screen) {
super.displayPreference(screen);
mPreference = screen.findPreference(getPreferenceKey());
}
@Override
public int getAvailabilityStatus() {
return ColorDisplayManager.isNightDisplayAvailable(mContext)
? AVAILABLE : UNSUPPORTED_ON_DEVICE;
}
@Override
public boolean isChecked() {
return mColorDisplayManager.isNightDisplayActivated();
}
@Override
public boolean setChecked(boolean isChecked) {
return mColorDisplayManager.setNightDisplayActivated(isChecked);
}
@Override
public void updateState(Preference preference) {
super.updateState(preference);
preference.setSummary(mTimeFormatter.getAutoModeSummary(mContext, mColorDisplayManager));
}
@Override
public int getSliceHighlightMenuRes() {
return R.string.menu_key_display;
}
@Override
public void onActivated(boolean activated) {
updateState(mPreference);
}
}