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.settings;
18 
19 import android.app.Dialog;
20 import android.content.Context;
21 import android.preference.EditTextPreference;
22 import android.text.InputType;
23 import android.util.AttributeSet;
24 import android.view.View;
25 import android.widget.EditText;
26 
27 /**
28  * TODO: Add a soft dialpad for PIN entry.
29  */
30 class EditPinPreference extends EditTextPreference {
31 
32     interface OnPinEnteredListener {
onPinEntered(EditPinPreference preference, boolean positiveResult)33         void onPinEntered(EditPinPreference preference, boolean positiveResult);
34     }
35 
36     private OnPinEnteredListener mPinListener;
37 
EditPinPreference(Context context, AttributeSet attrs)38     public EditPinPreference(Context context, AttributeSet attrs) {
39         super(context, attrs);
40     }
41 
EditPinPreference(Context context, AttributeSet attrs, int defStyle)42     public EditPinPreference(Context context, AttributeSet attrs, int defStyle) {
43         super(context, attrs, defStyle);
44     }
45 
setOnPinEnteredListener(OnPinEnteredListener listener)46     public void setOnPinEnteredListener(OnPinEnteredListener listener) {
47         mPinListener = listener;
48     }
49 
50     @Override
onBindDialogView(View view)51     protected void onBindDialogView(View view) {
52         super.onBindDialogView(view);
53 
54         final EditText editText = getEditText();
55 
56         if (editText != null) {
57             editText.setInputType(InputType.TYPE_CLASS_NUMBER |
58                 InputType.TYPE_NUMBER_VARIATION_PASSWORD);
59         }
60     }
61 
isDialogOpen()62     public boolean isDialogOpen() {
63         Dialog dialog = getDialog();
64         return dialog != null && dialog.isShowing();
65     }
66 
67     @Override
onDialogClosed(boolean positiveResult)68     protected void onDialogClosed(boolean positiveResult) {
69         super.onDialogClosed(positiveResult);
70         if (mPinListener != null) {
71             mPinListener.onPinEntered(this, positiveResult);
72         }
73     }
74 
showPinDialog()75     public void showPinDialog() {
76         Dialog dialog = getDialog();
77         if (dialog == null || !dialog.isShowing()) {
78             showDialog(null);
79         }
80     }
81 }
82