1 /*
2  * Copyright (C) 2017 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 
17 package com.android.settings.development;
18 
19 import android.content.Context;
20 import android.os.SystemProperties;
21 import android.text.TextUtils;
22 import android.view.ThreadedRenderer;
23 
24 import androidx.preference.ListPreference;
25 import androidx.preference.Preference;
26 
27 import com.android.settings.core.PreferenceControllerMixin;
28 import com.android.settingslib.development.DeveloperOptionsPreferenceController;
29 import com.android.settingslib.development.SystemPropPoker;
30 
31 public class DebugGpuOverdrawPreferenceController extends
32         DeveloperOptionsPreferenceController implements Preference.OnPreferenceChangeListener,
33         PreferenceControllerMixin {
34 
35     private static final String DEBUG_HW_OVERDRAW_KEY = "debug_hw_overdraw";
36 
37     private final String[] mListValues;
38     private final String[] mListSummaries;
39 
DebugGpuOverdrawPreferenceController(Context context)40     public DebugGpuOverdrawPreferenceController(Context context) {
41         super(context);
42 
43         mListValues = context.getResources().getStringArray(
44                 com.android.settingslib.R.array.debug_hw_overdraw_values);
45         mListSummaries = context.getResources().getStringArray(
46                 com.android.settingslib.R.array.debug_hw_overdraw_entries);
47     }
48 
49     @Override
getPreferenceKey()50     public String getPreferenceKey() {
51         return DEBUG_HW_OVERDRAW_KEY;
52     }
53 
54     @Override
onPreferenceChange(Preference preference, Object newValue)55     public boolean onPreferenceChange(Preference preference, Object newValue) {
56         writeDebugHwOverdrawOptions(newValue);
57         updateDebugHwOverdrawOptions();
58         return true;
59     }
60 
61     @Override
updateState(Preference preference)62     public void updateState(Preference preference) {
63         updateDebugHwOverdrawOptions();
64     }
65 
writeDebugHwOverdrawOptions(Object newValue)66     private void writeDebugHwOverdrawOptions(Object newValue) {
67         SystemProperties.set(ThreadedRenderer.DEBUG_OVERDRAW_PROPERTY,
68                 newValue == null ? "" : newValue.toString());
69         SystemPropPoker.getInstance().poke();
70     }
71 
updateDebugHwOverdrawOptions()72     private void updateDebugHwOverdrawOptions() {
73         final String value = SystemProperties.get(
74                 ThreadedRenderer.DEBUG_OVERDRAW_PROPERTY, "" /* default */);
75 
76         int index = 0; // default
77         for (int i = 0; i < mListValues.length; i++) {
78             if (TextUtils.equals(value, mListValues[i])) {
79                 index = i;
80                 break;
81             }
82         }
83         final ListPreference listPreference = (ListPreference) mPreference;
84         listPreference.setValue(mListValues[index]);
85         listPreference.setSummary(mListSummaries[index]);
86     }
87 }
88