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 */
14package com.android.settings.display;
15
16import android.content.Context;
17import android.os.SystemProperties;
18import android.provider.Settings;
19import android.support.v14.preference.SwitchPreference;
20import android.support.v7.preference.Preference;
21
22import com.android.settings.core.PreferenceControllerMixin;
23import com.android.settingslib.core.AbstractPreferenceController;
24
25import static android.provider.Settings.Secure.CAMERA_GESTURE_DISABLED;
26
27public class CameraGesturePreferenceController extends AbstractPreferenceController implements
28        PreferenceControllerMixin, Preference.OnPreferenceChangeListener {
29
30    private static final String KEY_CAMERA_GESTURE = "camera_gesture";
31
32    public CameraGesturePreferenceController(Context context) {
33        super(context);
34    }
35
36    @Override
37    public String getPreferenceKey() {
38        return KEY_CAMERA_GESTURE;
39    }
40
41    @Override
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
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
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