blob: d886a595d9c62306771fb348078d19f96910a797 [file] [log] [blame]
/*
* 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.settings.accessibility;
import android.content.Context;
import android.database.ContentObserver;
import android.hardware.display.ColorDisplayManager;
import android.net.Uri;
import android.os.Handler;
import android.os.Looper;
import android.os.UserHandle;
import android.provider.Settings;
import android.text.TextUtils;
import androidx.preference.Preference;
import androidx.preference.PreferenceScreen;
import com.android.settings.R;
import com.android.settings.core.TogglePreferenceController;
import com.android.settings.widget.PrimarySwitchPreference;
import com.android.settingslib.core.lifecycle.LifecycleObserver;
import com.android.settingslib.core.lifecycle.events.OnStart;
import com.android.settingslib.core.lifecycle.events.OnStop;
/** PreferenceController that shows the Reduce Bright Colors summary */
public class ReduceBrightColorsPreferenceController extends TogglePreferenceController
implements LifecycleObserver, OnStart, OnStop {
private ContentObserver mSettingsContentObserver;
private PrimarySwitchPreference mPreference;
private final Context mContext;
private final ColorDisplayManager mColorDisplayManager;
public ReduceBrightColorsPreferenceController(Context context,
String preferenceKey) {
super(context, preferenceKey);
mContext = context;
mSettingsContentObserver = new ContentObserver(new Handler(Looper.getMainLooper())){
@Override
public void onChange(boolean selfChange, Uri uri) {
final String path = uri == null ? null : uri.getLastPathSegment();
if (TextUtils.equals(path, Settings.Secure.REDUCE_BRIGHT_COLORS_ACTIVATED)) {
updateState(mPreference);
}
}
};
mColorDisplayManager = mContext.getSystemService(ColorDisplayManager.class);
}
@Override
public boolean isChecked() {
return mColorDisplayManager.isReduceBrightColorsActivated();
}
@Override
public boolean setChecked(boolean isChecked) {
return mColorDisplayManager.setReduceBrightColorsActivated(isChecked);
}
@Override
public CharSequence getSummary() {
return mContext.getText(
R.string.reduce_bright_colors_preference_summary);
}
@Override
public void updateState(Preference preference) {
super.updateState(preference);
refreshSummary(preference);
}
@Override
public int getAvailabilityStatus() {
return ColorDisplayManager.isReduceBrightColorsAvailable(mContext) ? AVAILABLE
: UNSUPPORTED_ON_DEVICE;
}
@Override
public void displayPreference(PreferenceScreen screen) {
super.displayPreference(screen);
mPreference = screen.findPreference(getPreferenceKey());
}
@Override
public void onStart() {
mContext.getContentResolver().registerContentObserver(Settings.Secure.getUriFor(
Settings.Secure.REDUCE_BRIGHT_COLORS_ACTIVATED),
false, mSettingsContentObserver, UserHandle.USER_CURRENT);
}
@Override
public void onStop() {
mContext.getContentResolver().unregisterContentObserver(mSettingsContentObserver);
}
}