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      1 /*
      2  * Copyright (C) 2014 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.keyguard;
     18 
     19 import android.content.Context;
     20 import android.graphics.Rect;
     21 import android.util.AttributeSet;
     22 import android.view.KeyEvent;
     23 import android.view.View;
     24 
     25 /**
     26  * A Pin based Keyguard input view
     27  */
     28 public abstract class KeyguardPinBasedInputView extends KeyguardAbsKeyInputView
     29         implements View.OnKeyListener {
     30 
     31     protected PasswordTextView mPasswordEntry;
     32     private View mOkButton;
     33     private View mDeleteButton;
     34     private View mButton0;
     35     private View mButton1;
     36     private View mButton2;
     37     private View mButton3;
     38     private View mButton4;
     39     private View mButton5;
     40     private View mButton6;
     41     private View mButton7;
     42     private View mButton8;
     43     private View mButton9;
     44 
     45     public KeyguardPinBasedInputView(Context context) {
     46         this(context, null);
     47     }
     48 
     49     public KeyguardPinBasedInputView(Context context, AttributeSet attrs) {
     50         super(context, attrs);
     51     }
     52 
     53     @Override
     54     public void reset() {
     55         mPasswordEntry.requestFocus();
     56         super.reset();
     57     }
     58 
     59     @Override
     60     protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) {
     61         // send focus to the password field
     62         return mPasswordEntry.requestFocus(direction, previouslyFocusedRect);
     63     }
     64 
     65     protected void resetState() {
     66         mPasswordEntry.setEnabled(true);
     67     }
     68 
     69     @Override
     70     protected void setPasswordEntryEnabled(boolean enabled) {
     71         mPasswordEntry.setEnabled(enabled);
     72     }
     73 
     74     @Override
     75     public boolean onKeyDown(int keyCode, KeyEvent event) {
     76         if (KeyEvent.isConfirmKey(keyCode)) {
     77             performClick(mOkButton);
     78             return true;
     79         } else if (keyCode == KeyEvent.KEYCODE_DEL) {
     80             performClick(mDeleteButton);
     81             return true;
     82         }
     83         if (keyCode >= KeyEvent.KEYCODE_0 && keyCode <= KeyEvent.KEYCODE_9) {
     84             int number = keyCode - KeyEvent.KEYCODE_0 ;
     85             performNumberClick(number);
     86             return true;
     87         }
     88         return super.onKeyDown(keyCode, event);
     89     }
     90 
     91     private void performClick(View view) {
     92         view.performClick();
     93     }
     94 
     95     private void performNumberClick(int number) {
     96         switch (number) {
     97             case 0:
     98                 performClick(mButton0);
     99                 break;
    100             case 1:
    101                 performClick(mButton1);
    102                 break;
    103             case 2:
    104                 performClick(mButton2);
    105                 break;
    106             case 3:
    107                 performClick(mButton3);
    108                 break;
    109             case 4:
    110                 performClick(mButton4);
    111                 break;
    112             case 5:
    113                 performClick(mButton5);
    114                 break;
    115             case 6:
    116                 performClick(mButton6);
    117                 break;
    118             case 7:
    119                 performClick(mButton7);
    120                 break;
    121             case 8:
    122                 performClick(mButton8);
    123                 break;
    124             case 9:
    125                 performClick(mButton9);
    126                 break;
    127         }
    128     }
    129 
    130     @Override
    131     protected void resetPasswordText(boolean animate) {
    132         mPasswordEntry.reset(animate);
    133     }
    134 
    135     @Override
    136     protected String getPasswordText() {
    137         return mPasswordEntry.getText();
    138     }
    139 
    140     @Override
    141     protected void onFinishInflate() {
    142         mPasswordEntry = (PasswordTextView) findViewById(getPasswordTextViewId());
    143         mPasswordEntry.setOnKeyListener(this);
    144 
    145         // Set selected property on so the view can send accessibility events.
    146         mPasswordEntry.setSelected(true);
    147 
    148         // Poke the wakelock any time the text is selected or modified
    149         mPasswordEntry.setOnClickListener(new OnClickListener() {
    150             public void onClick(View v) {
    151                 mCallback.userActivity();
    152             }
    153         });
    154 
    155         mOkButton = findViewById(R.id.key_enter);
    156         if (mOkButton != null) {
    157             mOkButton.setOnClickListener(new View.OnClickListener() {
    158                 @Override
    159                 public void onClick(View v) {
    160                     doHapticKeyClick();
    161                     if (mPasswordEntry.isEnabled()) {
    162                         verifyPasswordAndUnlock();
    163                     }
    164                 }
    165             });
    166             mOkButton.setOnHoverListener(new LiftToActivateListener(getContext()));
    167         }
    168 
    169         mDeleteButton = findViewById(R.id.delete_button);
    170         mDeleteButton.setVisibility(View.VISIBLE);
    171         mDeleteButton.setOnClickListener(new OnClickListener() {
    172             public void onClick(View v) {
    173                 // check for time-based lockouts
    174                 if (mPasswordEntry.isEnabled()) {
    175                     mPasswordEntry.deleteLastChar();
    176                 }
    177                 doHapticKeyClick();
    178             }
    179         });
    180         mDeleteButton.setOnLongClickListener(new View.OnLongClickListener() {
    181             public boolean onLongClick(View v) {
    182                 // check for time-based lockouts
    183                 if (mPasswordEntry.isEnabled()) {
    184                     resetPasswordText(true /* animate */);
    185                 }
    186                 doHapticKeyClick();
    187                 return true;
    188             }
    189         });
    190 
    191         mButton0 = findViewById(R.id.key0);
    192         mButton1 = findViewById(R.id.key1);
    193         mButton2 = findViewById(R.id.key2);
    194         mButton3 = findViewById(R.id.key3);
    195         mButton4 = findViewById(R.id.key4);
    196         mButton5 = findViewById(R.id.key5);
    197         mButton6 = findViewById(R.id.key6);
    198         mButton7 = findViewById(R.id.key7);
    199         mButton8 = findViewById(R.id.key8);
    200         mButton9 = findViewById(R.id.key9);
    201 
    202         mPasswordEntry.requestFocus();
    203         super.onFinishInflate();
    204     }
    205 
    206     @Override
    207     public boolean onKey(View v, int keyCode, KeyEvent event) {
    208         if (event.getAction() == KeyEvent.ACTION_DOWN) {
    209             onKeyDown(keyCode, event);
    210             return true;
    211         }
    212         return false;
    213     }
    214 }
    215