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      1 /*
      2  * Copyright (C) 2015 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.deskclock.uidata;
     18 
     19 import android.content.SharedPreferences;
     20 
     21 import static com.android.deskclock.uidata.UiDataModel.Tab;
     22 
     23 /**
     24  * This class encapsulates the storage of tab data in {@link SharedPreferences}.
     25  */
     26 final class TabDAO {
     27 
     28     /** Key to a preference that stores the ordinal of the selected tab. */
     29     private static final String KEY_SELECTED_TAB = "selected_tab";
     30 
     31     private TabDAO() {}
     32 
     33     /**
     34      * @return an enumerated value indicating the currently selected primary tab
     35      */
     36     static Tab getSelectedTab(SharedPreferences prefs) {
     37         final int ordinal = prefs.getInt(KEY_SELECTED_TAB, Tab.CLOCKS.ordinal());
     38         return Tab.values()[ordinal];
     39     }
     40 
     41     /**
     42      * @param tab an enumerated value indicating the newly selected primary tab
     43      */
     44     static void setSelectedTab(SharedPreferences prefs, Tab tab) {
     45         prefs.edit().putInt(KEY_SELECTED_TAB, tab.ordinal()).apply();
     46     }
     47 }