android_device_samsung_msm8.../cmhw/org/lineageos/hardware/KeyDisabler.java
2019-03-19 17:28:47 +01:00

57 lines
1.6 KiB
Java

/*
* Copyright (C) 2014 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 org.lineageos.hardware;
import org.lineageos.internal.util.FileUtils;
/*
* Disable capacitive keys
*
* This is intended for use on devices in which the capacitive keys
* can be fully disabled for replacement with a soft navbar. You
* really should not be using this on a device with mechanical or
* otherwise visible-when-inactive keys
*/
public class KeyDisabler {
private static final String KEYDISABLER_PATH = "/sys/class/sec/sec_touchkey/keypad_enable";
/*
* All HAF classes should export this boolean.
* Real implementations must, of course, return true
*/
public static boolean isSupported() {
return FileUtils.isFileWritable(KEYDISABLER_PATH);
}
/*
* Are the keys currently blocked?
*/
public static boolean isActive() {
return FileUtils.readOneLine(KEYDISABLER_PATH).equals("0");
}
/*
* Disable capacitive keys
*/
public static boolean setActive(boolean state) {
return FileUtils.writeLine(KEYDISABLER_PATH, state ? "0" : "1");
}
}