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      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 {
     33         void onPinEntered(EditPinPreference preference, boolean positiveResult);
     34     }
     35 
     36     private OnPinEnteredListener mPinListener;
     37 
     38     public EditPinPreference(Context context, AttributeSet attrs) {
     39         super(context, attrs);
     40     }
     41 
     42     public EditPinPreference(Context context, AttributeSet attrs, int defStyle) {
     43         super(context, attrs, defStyle);
     44     }
     45 
     46     public void setOnPinEnteredListener(OnPinEnteredListener listener) {
     47         mPinListener = listener;
     48     }
     49 
     50     @Override
     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 
     62     public boolean isDialogOpen() {
     63         Dialog dialog = getDialog();
     64         return dialog != null && dialog.isShowing();
     65     }
     66 
     67     @Override
     68     protected void onDialogClosed(boolean positiveResult) {
     69         super.onDialogClosed(positiveResult);
     70         if (mPinListener != null) {
     71             mPinListener.onPinEntered(this, positiveResult);
     72         }
     73     }
     74 
     75     public void showPinDialog() {
     76         Dialog dialog = getDialog();
     77         if (dialog == null || !dialog.isShowing()) {
     78             showDialog(null);
     79         }
     80     }
     81 }
     82