1 /*
2  * Copyright (C) 2008 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.phone.settings.fdn;
18 
19 import android.app.AlertDialog;
20 import android.content.Context;
21 import android.preference.EditTextPreference;
22 import android.text.InputType;
23 import android.text.method.DigitsKeyListener;
24 import android.text.method.PasswordTransformationMethod;
25 import android.util.AttributeSet;
26 import android.view.View;
27 import android.widget.EditText;
28 
29 import com.android.phone.R;
30 
31 import java.util.Map;
32 
33 /**
34  * Class similar to the com.android.settings.EditPinPreference
35  * class, with a couple of modifications, including a different layout
36  * for the dialog.
37  */
38 public class EditPinPreference extends EditTextPreference {
39 
40     private boolean shouldHideButtons;
41 
42     interface OnPinEnteredListener {
onPinEntered(EditPinPreference preference, boolean positiveResult)43         void onPinEntered(EditPinPreference preference, boolean positiveResult);
44     }
45 
46     private OnPinEnteredListener mPinListener;
47 
setOnPinEnteredListener(OnPinEnteredListener listener)48     public void setOnPinEnteredListener(OnPinEnteredListener listener) {
49         mPinListener = listener;
50     }
51 
EditPinPreference(Context context, AttributeSet attrs)52     public EditPinPreference(Context context, AttributeSet attrs) {
53         super(context, attrs);
54     }
55 
EditPinPreference(Context context, AttributeSet attrs, int defStyle)56     public EditPinPreference(Context context, AttributeSet attrs, int defStyle) {
57         super(context, attrs, defStyle);
58     }
59 
60     /**
61      * Overridden to setup the correct dialog layout, as well as setting up
62      * other properties for the pin / puk entry field.
63      */
64     @Override
onCreateDialogView()65     protected View onCreateDialogView() {
66         // set the dialog layout
67         setDialogLayoutResource(R.layout.pref_dialog_editpin);
68 
69         View dialog = super.onCreateDialogView();
70 
71         getEditText().setInputType(InputType.TYPE_CLASS_NUMBER |
72             InputType.TYPE_NUMBER_VARIATION_PASSWORD);
73 
74         return dialog;
75     }
76 
77     @Override
onBindDialogView(View view)78     protected void onBindDialogView(View view) {
79         super.onBindDialogView(view);
80 
81         // If the layout does not contain an edittext, hide the buttons.
82         shouldHideButtons = (view.findViewById(android.R.id.edit) == null);
83     }
84 
85     @Override
onPrepareDialogBuilder(AlertDialog.Builder builder)86     protected void onPrepareDialogBuilder(AlertDialog.Builder builder) {
87         super.onPrepareDialogBuilder(builder);
88 
89         // hide the buttons if we need to.
90         if (shouldHideButtons) {
91             builder.setPositiveButton(null, this);
92             builder.setNegativeButton(null, this);
93         }
94     }
95 
96     @Override
onDialogClosed(boolean positiveResult)97     protected void onDialogClosed(boolean positiveResult) {
98         super.onDialogClosed(positiveResult);
99         if (mPinListener != null) {
100             mPinListener.onPinEntered(this, positiveResult);
101         }
102     }
103 
104     /**
105      * Externally visible method to bring up the dialog to
106      * for multi-step / multi-dialog requests (like changing
107      * the SIM pin).
108      */
showPinDialog()109     public void showPinDialog() {
110         showDialog(null);
111     }
112 }
113