1 /* 2 * Copyright (C) 2016 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 5 * except in compliance with the License. You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software distributed under the 10 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 11 * KIND, either express or implied. See the License for the specific language governing 12 * permissions and limitations under the License. 13 */ 14 package com.android.settings.display; 15 16 import android.content.Context; 17 import android.os.SystemProperties; 18 import android.provider.Settings; 19 import android.support.v14.preference.SwitchPreference; 20 import android.support.v7.preference.Preference; 21 22 import com.android.settings.core.PreferenceControllerMixin; 23 import com.android.settingslib.core.AbstractPreferenceController; 24 25 import static android.provider.Settings.Secure.CAMERA_GESTURE_DISABLED; 26 27 public class CameraGesturePreferenceController extends AbstractPreferenceController implements 28 PreferenceControllerMixin, Preference.OnPreferenceChangeListener { 29 30 private static final String KEY_CAMERA_GESTURE = "camera_gesture"; 31 CameraGesturePreferenceController(Context context)32 public CameraGesturePreferenceController(Context context) { 33 super(context); 34 } 35 36 @Override getPreferenceKey()37 public String getPreferenceKey() { 38 return KEY_CAMERA_GESTURE; 39 } 40 41 @Override updateState(Preference preference)42 public void updateState(Preference preference) { 43 int value = Settings.Secure.getInt(mContext.getContentResolver(), 44 CAMERA_GESTURE_DISABLED, 0); 45 ((SwitchPreference) preference).setChecked(value == 0); 46 } 47 48 @Override isAvailable()49 public boolean isAvailable() { 50 boolean configSet = mContext.getResources().getInteger( 51 com.android.internal.R.integer.config_cameraLaunchGestureSensorType) != -1; 52 return configSet 53 && !SystemProperties.getBoolean("gesture.disable_camera_launch", false); 54 } 55 56 @Override onPreferenceChange(Preference preference, Object newValue)57 public boolean onPreferenceChange(Preference preference, Object newValue) { 58 boolean value = (Boolean) newValue; 59 Settings.Secure.putInt(mContext.getContentResolver(), CAMERA_GESTURE_DISABLED, 60 value ? 0 : 1 /* Backwards because setting is for disabling */); 61 return true; 62 } 63 } 64