1 /*
2  * Copyright (C) 2010 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.contacts.preference;
18 
19 import android.app.AlertDialog.Builder;
20 import android.content.Context;
21 import android.preference.ListPreference;
22 import android.util.AttributeSet;
23 
24 import com.android.contacts.R;
25 
26 /**
27  * Custom preference: view-name-as (first name first or last name first).
28  */
29 public final class DisplayOrderPreference extends ListPreference {
30 
31     private ContactsPreferences mPreferences;
32     private Context mContext;
33 
DisplayOrderPreference(Context context)34     public DisplayOrderPreference(Context context) {
35         super(context);
36         prepare();
37     }
38 
DisplayOrderPreference(Context context, AttributeSet attrs)39     public DisplayOrderPreference(Context context, AttributeSet attrs) {
40         super(context, attrs);
41         prepare();
42     }
43 
prepare()44     private void prepare() {
45         mContext = getContext();
46         mPreferences = new ContactsPreferences(mContext);
47         setEntries(new String[]{
48                 mContext.getString(R.string.display_options_view_given_name_first),
49                 mContext.getString(R.string.display_options_view_family_name_first),
50         });
51         setEntryValues(new String[]{
52                 String.valueOf(ContactsPreferences.DISPLAY_ORDER_PRIMARY),
53                 String.valueOf(ContactsPreferences.DISPLAY_ORDER_ALTERNATIVE),
54         });
55         setValue(String.valueOf(mPreferences.getDisplayOrder()));
56     }
57 
58     @Override
shouldPersist()59     protected boolean shouldPersist() {
60         return false;   // This preference takes care of its own storage
61     }
62 
63     @Override
getSummary()64     public CharSequence getSummary() {
65         switch (mPreferences.getDisplayOrder()) {
66             case ContactsPreferences.DISPLAY_ORDER_PRIMARY:
67                 return mContext.getString(R.string.display_options_view_given_name_first);
68             case ContactsPreferences.DISPLAY_ORDER_ALTERNATIVE:
69                 return mContext.getString(R.string.display_options_view_family_name_first);
70         }
71         return null;
72     }
73 
74     @Override
persistString(String value)75     protected boolean persistString(String value) {
76         int newValue = Integer.parseInt(value);
77         if (newValue != mPreferences.getDisplayOrder()) {
78             mPreferences.setDisplayOrder(newValue);
79             notifyChanged();
80         }
81         return true;
82     }
83 
84     @Override
85     // UX recommendation is not to show cancel button on such lists.
onPrepareDialogBuilder(Builder builder)86     protected void onPrepareDialogBuilder(Builder builder) {
87         super.onPrepareDialogBuilder(builder);
88         builder.setNegativeButton(null, null);
89     }
90 }
91