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 
TabDAO()31     private TabDAO() {}
32 
33     /**
34      * @return an enumerated value indicating the currently selected primary tab
35      */
getSelectedTab(SharedPreferences prefs)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      */
setSelectedTab(SharedPreferences prefs, Tab tab)44     static void setSelectedTab(SharedPreferences prefs, Tab tab) {
45         prefs.edit().putInt(KEY_SELECTED_TAB, tab.ordinal()).apply();
46     }
47 }