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      1 /*
      2  * Copyright (C) 2017 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.graphics.drawable.Drawable;
     18 import android.support.annotation.VisibleForTesting;
     19 
     20 import com.android.internal.app.NightDisplayController;
     21 import com.android.internal.logging.nano.MetricsProto;
     22 
     23 import com.android.settings.R;
     24 import com.android.settings.widget.RadioButtonPickerFragment;
     25 
     26 import java.util.Arrays;
     27 import java.util.List;
     28 
     29 @SuppressWarnings("WeakerAccess")
     30 public class ColorModePreferenceFragment extends RadioButtonPickerFragment {
     31 
     32     @VisibleForTesting
     33     static final String KEY_COLOR_MODE_NATURAL = "color_mode_natural";
     34     @VisibleForTesting
     35     static final String KEY_COLOR_MODE_BOOSTED = "color_mode_boosted";
     36     @VisibleForTesting
     37     static final String KEY_COLOR_MODE_SATURATED = "color_mode_saturated";
     38 
     39     private NightDisplayController mController;
     40 
     41     @Override
     42     public void onAttach(Context context) {
     43         super.onAttach(context);
     44         mController = new NightDisplayController(context);
     45     }
     46 
     47     @Override
     48     protected List<? extends CandidateInfo> getCandidates() {
     49         Context c = getContext();
     50         return Arrays.asList(
     51             new ColorModeCandidateInfo(c.getString(R.string.color_mode_option_natural),
     52                     KEY_COLOR_MODE_NATURAL),
     53             new ColorModeCandidateInfo(c.getString(R.string.color_mode_option_boosted),
     54                     KEY_COLOR_MODE_BOOSTED),
     55             new ColorModeCandidateInfo(c.getString(R.string.color_mode_option_saturated),
     56                     KEY_COLOR_MODE_SATURATED)
     57         );
     58     }
     59 
     60     @Override
     61     protected String getDefaultKey() {
     62         if (mController.getColorMode() == NightDisplayController.COLOR_MODE_SATURATED) {
     63             return KEY_COLOR_MODE_SATURATED;
     64         }
     65         if (mController.getColorMode() == NightDisplayController.COLOR_MODE_BOOSTED) {
     66             return KEY_COLOR_MODE_BOOSTED;
     67         }
     68         return KEY_COLOR_MODE_NATURAL;
     69     }
     70 
     71     @Override
     72     protected boolean setDefaultKey(String key) {
     73         switch (key) {
     74             case KEY_COLOR_MODE_NATURAL:
     75                 mController.setColorMode(NightDisplayController.COLOR_MODE_NATURAL);
     76                 break;
     77             case KEY_COLOR_MODE_BOOSTED:
     78                 mController.setColorMode(NightDisplayController.COLOR_MODE_BOOSTED);
     79                 break;
     80             case KEY_COLOR_MODE_SATURATED:
     81                 mController.setColorMode(NightDisplayController.COLOR_MODE_SATURATED);
     82                 break;
     83         }
     84         return true;
     85     }
     86 
     87     @Override
     88     public int getMetricsCategory() {
     89         return MetricsProto.MetricsEvent.COLOR_MODE_SETTINGS;
     90     }
     91 
     92     @VisibleForTesting
     93     static class ColorModeCandidateInfo extends CandidateInfo {
     94         private final CharSequence mLabel;
     95         private final String mKey;
     96 
     97         ColorModeCandidateInfo(CharSequence label, String key) {
     98             super(true);
     99             mLabel = label;
    100             mKey = key;
    101         }
    102 
    103         @Override
    104         public CharSequence loadLabel() {
    105             return mLabel;
    106         }
    107 
    108         @Override
    109         public Drawable loadIcon() {
    110             return null;
    111         }
    112 
    113         @Override
    114         public String getKey() {
    115             return mKey;
    116         }
    117     }
    118 
    119 }
    120