1 /*
2  * Copyright (C) 2024 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 package com.android.settings.accessibility;
17 
18 import android.content.ContentResolver;
19 import android.content.Context;
20 import android.provider.Settings;
21 
22 import androidx.preference.PreferenceScreen;
23 
24 import com.android.server.accessibility.Flags;
25 import com.android.settings.core.SliderPreferenceController;
26 import com.android.settings.widget.SeekBarPreference;
27 
28 /**
29  * The controller of the seekbar preference for the saturation level of color correction.
30  */
31 public class DaltonizerSaturationSeekbarPreferenceController extends SliderPreferenceController {
32 
33     private static final int DEFAULT_SATURATION_LEVEL = 7;
34     private static final int SATURATION_MAX = 10;
35     private static final int SATURATION_MIN = 0;
36 
37     private int mSliderPosition;
38     private final ContentResolver mContentResolver;
39 
DaltonizerSaturationSeekbarPreferenceController(Context context, String preferenceKey)40     public DaltonizerSaturationSeekbarPreferenceController(Context context,
41             String preferenceKey) {
42         super(context, preferenceKey);
43         mContentResolver = context.getContentResolver();
44         mSliderPosition = Settings.Secure.getInt(
45                 mContentResolver,
46                 Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_SATURATION_LEVEL,
47                 DEFAULT_SATURATION_LEVEL);
48         setSliderPosition(mSliderPosition);
49         // TODO: Observer color correction on/off and enable/disable based on secure settings.
50     }
51 
52     @Override
displayPreference(PreferenceScreen screen)53     public void displayPreference(PreferenceScreen screen) {
54         super.displayPreference(screen);
55         SeekBarPreference preference = screen.findPreference(getPreferenceKey());
56         preference.setMax(getMax());
57         preference.setMin(getMin());
58         preference.setProgress(mSliderPosition);
59         preference.setContinuousUpdates(true);
60     }
61 
62     @Override
getAvailabilityStatus()63     public int getAvailabilityStatus() {
64         if (Flags.enableColorCorrectionSaturation()) {
65             return AVAILABLE;
66         }
67         return CONDITIONALLY_UNAVAILABLE;
68     }
69 
70     @Override
getSliderPosition()71     public int getSliderPosition() {
72         return mSliderPosition;
73     }
74 
75     @Override
setSliderPosition(int position)76     public boolean setSliderPosition(int position) {
77         if (position < getMin() || position > getMax()) {
78             return false;
79         }
80         mSliderPosition = position;
81         Settings.Secure.putInt(
82                 mContentResolver,
83                 Settings.Secure.ACCESSIBILITY_DISPLAY_DALTONIZER_SATURATION_LEVEL,
84                 mSliderPosition);
85         return true;
86     }
87 
88     @Override
getMax()89     public int getMax() {
90         return SATURATION_MAX;
91     }
92 
93     @Override
getMin()94     public int getMin() {
95         return SATURATION_MIN;
96     }
97 }
98