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      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.settings;
     18 
     19 import com.android.internal.widget.LockPatternUtils;
     20 import com.android.internal.widget.PasswordEntryKeyboardHelper;
     21 import com.android.internal.widget.PasswordEntryKeyboardView;
     22 import com.android.settings.ChooseLockGeneric.ChooseLockGenericFragment;
     23 
     24 import android.app.Activity;
     25 import android.app.Fragment;
     26 import android.app.admin.DevicePolicyManager;
     27 import android.content.Intent;
     28 import android.os.Bundle;
     29 import android.os.Handler;
     30 import android.preference.PreferenceActivity;
     31 import android.text.Editable;
     32 import android.text.InputType;
     33 import android.text.TextWatcher;
     34 import android.view.KeyEvent;
     35 import android.view.LayoutInflater;
     36 import android.view.View;
     37 import android.view.View.OnClickListener;
     38 import android.view.ViewGroup;
     39 import android.view.accessibility.AccessibilityEvent;
     40 import android.view.inputmethod.EditorInfo;
     41 import android.widget.Button;
     42 import android.widget.TextView;
     43 import android.widget.TextView.OnEditorActionListener;
     44 
     45 public class ConfirmLockPassword extends PreferenceActivity {
     46 
     47     @Override
     48     public Intent getIntent() {
     49         Intent modIntent = new Intent(super.getIntent());
     50         modIntent.putExtra(EXTRA_SHOW_FRAGMENT, ConfirmLockPasswordFragment.class.getName());
     51         modIntent.putExtra(EXTRA_NO_HEADERS, true);
     52         return modIntent;
     53     }
     54 
     55     @Override
     56     protected boolean isValidFragment(String fragmentName) {
     57         if (ConfirmLockPasswordFragment.class.getName().equals(fragmentName)) return true;
     58         return false;
     59     }
     60 
     61     @Override
     62     public void onCreate(Bundle savedInstanceState) {
     63         // Disable IME on our window since we provide our own keyboard
     64         //getWindow().setFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM,
     65                 //WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
     66         super.onCreate(savedInstanceState);
     67         CharSequence msg = getText(R.string.lockpassword_confirm_your_password_header);
     68         showBreadCrumbs(msg, msg);
     69     }
     70 
     71     public static class ConfirmLockPasswordFragment extends Fragment implements OnClickListener,
     72             OnEditorActionListener, TextWatcher {
     73         private static final long ERROR_MESSAGE_TIMEOUT = 3000;
     74         private TextView mPasswordEntry;
     75         private LockPatternUtils mLockPatternUtils;
     76         private TextView mHeaderText;
     77         private Handler mHandler = new Handler();
     78         private PasswordEntryKeyboardHelper mKeyboardHelper;
     79         private PasswordEntryKeyboardView mKeyboardView;
     80         private Button mContinueButton;
     81 
     82 
     83         // required constructor for fragments
     84         public ConfirmLockPasswordFragment() {
     85 
     86         }
     87 
     88         @Override
     89         public void onCreate(Bundle savedInstanceState) {
     90             super.onCreate(savedInstanceState);
     91             mLockPatternUtils = new LockPatternUtils(getActivity());
     92         }
     93 
     94         @Override
     95         public View onCreateView(LayoutInflater inflater, ViewGroup container,
     96                 Bundle savedInstanceState) {
     97             final int storedQuality = mLockPatternUtils.getKeyguardStoredPasswordQuality();
     98             View view = inflater.inflate(R.layout.confirm_lock_password, null);
     99             // Disable IME on our window since we provide our own keyboard
    100 
    101             view.findViewById(R.id.cancel_button).setOnClickListener(this);
    102             mContinueButton = (Button) view.findViewById(R.id.next_button);
    103             mContinueButton.setOnClickListener(this);
    104             mContinueButton.setEnabled(false); // disable until the user enters at least one char
    105 
    106             mPasswordEntry = (TextView) view.findViewById(R.id.password_entry);
    107             mPasswordEntry.setOnEditorActionListener(this);
    108             mPasswordEntry.addTextChangedListener(this);
    109 
    110             mKeyboardView = (PasswordEntryKeyboardView) view.findViewById(R.id.keyboard);
    111             mHeaderText = (TextView) view.findViewById(R.id.headerText);
    112             final boolean isAlpha = DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC == storedQuality
    113                     || DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC == storedQuality
    114                     || DevicePolicyManager.PASSWORD_QUALITY_COMPLEX == storedQuality;
    115             mHeaderText.setText(isAlpha ? R.string.lockpassword_confirm_your_password_header
    116                     : R.string.lockpassword_confirm_your_pin_header);
    117 
    118             final Activity activity = getActivity();
    119             mKeyboardHelper = new PasswordEntryKeyboardHelper(activity,
    120                     mKeyboardView, mPasswordEntry);
    121             mKeyboardHelper.setKeyboardMode(isAlpha ?
    122                     PasswordEntryKeyboardHelper.KEYBOARD_MODE_ALPHA
    123                     : PasswordEntryKeyboardHelper.KEYBOARD_MODE_NUMERIC);
    124             mKeyboardView.requestFocus();
    125 
    126             int currentType = mPasswordEntry.getInputType();
    127             mPasswordEntry.setInputType(isAlpha ? currentType
    128                     : (InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_VARIATION_PASSWORD));
    129 
    130             // Update the breadcrumb (title) if this is embedded in a PreferenceActivity
    131             if (activity instanceof PreferenceActivity) {
    132                 final PreferenceActivity preferenceActivity = (PreferenceActivity) activity;
    133                 int id = isAlpha ? R.string.lockpassword_confirm_your_password_header
    134                         : R.string.lockpassword_confirm_your_pin_header;
    135                 CharSequence title = getText(id);
    136                 preferenceActivity.showBreadCrumbs(title, title);
    137             }
    138 
    139             return view;
    140         }
    141 
    142         @Override
    143         public void onPause() {
    144             super.onPause();
    145             mKeyboardView.requestFocus();
    146         }
    147 
    148         @Override
    149         public void onResume() {
    150             // TODO Auto-generated method stub
    151             super.onResume();
    152             mKeyboardView.requestFocus();
    153         }
    154 
    155         private void handleNext() {
    156             final String pin = mPasswordEntry.getText().toString();
    157             if (mLockPatternUtils.checkPassword(pin)) {
    158 
    159                 Intent intent = new Intent();
    160                 intent.putExtra(ChooseLockSettingsHelper.EXTRA_KEY_PASSWORD, pin);
    161 
    162                 getActivity().setResult(RESULT_OK, intent);
    163                 getActivity().finish();
    164             } else {
    165                 showError(R.string.lockpattern_need_to_unlock_wrong);
    166             }
    167         }
    168 
    169         public void onClick(View v) {
    170             switch (v.getId()) {
    171                 case R.id.next_button:
    172                     handleNext();
    173                     break;
    174 
    175                 case R.id.cancel_button:
    176                     getActivity().setResult(RESULT_CANCELED);
    177                     getActivity().finish();
    178                     break;
    179             }
    180         }
    181 
    182         private void showError(int msg) {
    183             mHeaderText.setText(msg);
    184             mHeaderText.announceForAccessibility(mHeaderText.getText());
    185             mPasswordEntry.setText(null);
    186             mHandler.postDelayed(new Runnable() {
    187                 public void run() {
    188                     mHeaderText.setText(R.string.lockpassword_confirm_your_password_header);
    189                 }
    190             }, ERROR_MESSAGE_TIMEOUT);
    191         }
    192 
    193         // {@link OnEditorActionListener} methods.
    194         public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
    195             // Check if this was the result of hitting the enter or "done" key
    196             if (actionId == EditorInfo.IME_NULL
    197                     || actionId == EditorInfo.IME_ACTION_DONE
    198                     || actionId == EditorInfo.IME_ACTION_NEXT) {
    199                 handleNext();
    200                 return true;
    201             }
    202             return false;
    203         }
    204 
    205         // {@link TextWatcher} methods.
    206         public void beforeTextChanged(CharSequence s, int start, int count, int after) {
    207         }
    208 
    209         public void onTextChanged(CharSequence s, int start, int before, int count) {
    210         }
    211 
    212         public void afterTextChanged(Editable s) {
    213             mContinueButton.setEnabled(mPasswordEntry.getText().length() > 0);
    214         }
    215     }
    216 }
    217