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/*
* Copyright (C) 2013 The CyanogenMod 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.cyanogenmod.settings.device;
import android.content.Context;
import android.content.SharedPreferences;
import android.preference.CheckBoxPreference;
import android.preference.Preference;
import android.preference.Preference.OnPreferenceChangeListener;
import android.preference.PreferenceManager;
import android.util.AttributeSet;
public class CABC extends CheckBoxPreference implements OnPreferenceChangeListener {
public CABC(Context context, AttributeSet attrs) {
super(context, attrs);
this.setOnPreferenceChangeListener(this);
}
private static final String FILE = "/sys/class/lcd/panel/power_reduce";
public static boolean isSupported() {
return Utils.fileExists(FILE);
}
/**
* Restore cabc setting from SharedPreferences. (Write to kernel.)
* @param context The context to read the SharedPreferences from
*/
public static void restore(Context context) {
if (!isSupported()) {
return;
}
SharedPreferences sharedPrefs = PreferenceManager.getDefaultSharedPreferences(context);
Utils.writeValue(FILE, sharedPrefs.getBoolean(DeviceSettings.KEY_CABC, true) ? "1" : "0");
}
public boolean onPreferenceChange(Preference preference, Object newValue) {
Utils.writeValue(FILE, (Boolean)newValue ? "1" : "0");
return true;
}
}
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