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