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      1 /*
      2  * Copyright (C) 2018 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.provider.Settings;
     21 import android.support.v14.preference.SwitchPreference;
     22 import android.support.v7.preference.Preference;
     23 
     24 import com.android.settings.core.PreferenceControllerMixin;
     25 import com.android.settingslib.development.DeveloperOptionsPreferenceController;
     26 
     27 /**
     28  * Base controller for Switch preference that maps to a specific value in Settings.Global.
     29  */
     30 public abstract class GlobalSettingSwitchPreferenceController extends
     31         DeveloperOptionsPreferenceController implements Preference.OnPreferenceChangeListener,
     32         PreferenceControllerMixin {
     33 
     34     private static final int SETTING_VALUE_OFF = 0;
     35     private static final int SETTING_VALUE_ON = 1;
     36 
     37     private final String mSettingsKey;
     38     private final int mOn;
     39     private final int mOff;
     40     private final int mDefault;
     41 
     42     public GlobalSettingSwitchPreferenceController(Context context, String globalSettingsKey) {
     43         this(context, globalSettingsKey, SETTING_VALUE_ON, SETTING_VALUE_OFF, SETTING_VALUE_OFF);
     44     }
     45 
     46     /**
     47      * Use different on/off/default vaules other than the standard 1/0/0.
     48      */
     49     public GlobalSettingSwitchPreferenceController(Context context, String globalSettingsKey,
     50             int valueOn, int valueOff, int valueDefault) {
     51         super(context);
     52         mSettingsKey = globalSettingsKey;
     53         mOn = valueOn;
     54         mOff = valueOff;
     55         mDefault = valueDefault;
     56     }
     57 
     58     @Override
     59     public boolean onPreferenceChange(Preference preference, Object newValue) {
     60         final boolean isEnabled = (Boolean) newValue;
     61         Settings.Global.putInt(mContext.getContentResolver(), mSettingsKey, isEnabled ? mOn : mOff);
     62         return true;
     63     }
     64 
     65     @Override
     66     public void updateState(Preference preference) {
     67         final int mode =
     68             Settings.Global.getInt(mContext.getContentResolver(), mSettingsKey, mDefault);
     69         ((SwitchPreference) mPreference).setChecked(mode != mOff);
     70     }
     71 
     72     @Override
     73     protected void onDeveloperOptionsSwitchDisabled() {
     74         super.onDeveloperOptionsSwitchDisabled();
     75         Settings.Global.putInt(mContext.getContentResolver(), mSettingsKey, mOff);
     76         ((SwitchPreference) mPreference).setChecked(false);
     77     }
     78 }
     79