ConfirmLockPassword.java revision 74b1e0a7330af195621ad0965748bee66c46f4b6 
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
17package com.android.settings;
18
19import com.android.internal.widget.LockPatternUtils;
20import com.android.internal.widget.PasswordEntryKeyboardHelper;
21import com.android.internal.widget.PasswordEntryKeyboardView;
22
23import android.app.Activity;
24import android.app.Fragment;
25import android.app.admin.DevicePolicyManager;
26import android.content.Intent;
27import android.os.Bundle;
28import android.os.Handler;
29import android.preference.PreferenceActivity;
30import android.text.InputType;
31import android.view.KeyEvent;
32import android.view.LayoutInflater;
33import android.view.View;
34import android.view.View.OnClickListener;
35import android.view.ViewGroup;
36import android.view.inputmethod.EditorInfo;
37import android.widget.TextView;
38import android.widget.TextView.OnEditorActionListener;
39
40public class ConfirmLockPassword extends PreferenceActivity {
41
42    @Override
43    public Intent getIntent() {
44        Intent modIntent = new Intent(super.getIntent());
45        modIntent.putExtra(EXTRA_SHOW_FRAGMENT, ConfirmLockPasswordFragment.class.getName());
46        modIntent.putExtra(EXTRA_NO_HEADERS, true);
47        return modIntent;
48    }
49
50    @Override
51    public void onCreate(Bundle savedInstanceState) {
52        // Disable IME on our window since we provide our own keyboard
53        //getWindow().setFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM,
54                //WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM);
55        super.onCreate(savedInstanceState);
56        CharSequence msg = getText(R.string.lockpassword_confirm_your_password_header);
57        showBreadCrumbs(msg, msg);
58    }
59
60    public static class ConfirmLockPasswordFragment extends Fragment implements OnClickListener,
61            OnEditorActionListener {
62        private static final long ERROR_MESSAGE_TIMEOUT = 3000;
63        private TextView mPasswordEntry;
64        private LockPatternUtils mLockPatternUtils;
65        private TextView mHeaderText;
66        private Handler mHandler = new Handler();
67        private PasswordEntryKeyboardHelper mKeyboardHelper;
68        private PasswordEntryKeyboardView mKeyboardView;
69
70
71        // required constructor for fragments
72        public ConfirmLockPasswordFragment() {
73
74        }
75
76        @Override
77        public void onCreate(Bundle savedInstanceState) {
78            super.onCreate(savedInstanceState);
79            mLockPatternUtils = new LockPatternUtils(getActivity());
80        }
81
82        @Override
83        public View onCreateView(LayoutInflater inflater, ViewGroup container,
84                Bundle savedInstanceState) {
85            final int storedQuality = mLockPatternUtils.getKeyguardStoredPasswordQuality();
86            View view = inflater.inflate(R.layout.confirm_lock_password, null);
87            // Disable IME on our window since we provide our own keyboard
88
89            view.findViewById(R.id.cancel_button).setOnClickListener(this);
90            view.findViewById(R.id.next_button).setOnClickListener(this);
91            mPasswordEntry = (TextView) view.findViewById(R.id.password_entry);
92            mPasswordEntry.setOnEditorActionListener(this);
93            mKeyboardView = (PasswordEntryKeyboardView) view.findViewById(R.id.keyboard);
94            mHeaderText = (TextView) view.findViewById(R.id.headerText);
95            final boolean isAlpha = DevicePolicyManager.PASSWORD_QUALITY_ALPHABETIC == storedQuality
96                    || DevicePolicyManager.PASSWORD_QUALITY_ALPHANUMERIC == storedQuality
97                    || DevicePolicyManager.PASSWORD_QUALITY_COMPLEX == storedQuality;
98            mHeaderText.setText(isAlpha ? R.string.lockpassword_confirm_your_password_header
99                    : R.string.lockpassword_confirm_your_pin_header);
100
101            final Activity activity = getActivity();
102            mKeyboardHelper = new PasswordEntryKeyboardHelper(activity,
103                    mKeyboardView, mPasswordEntry);
104            mKeyboardHelper.setKeyboardMode(isAlpha ?
105                    PasswordEntryKeyboardHelper.KEYBOARD_MODE_ALPHA
106                    : PasswordEntryKeyboardHelper.KEYBOARD_MODE_NUMERIC);
107            mKeyboardView.requestFocus();
108
109            int currentType = mPasswordEntry.getInputType();
110            mPasswordEntry.setInputType(isAlpha ? currentType
111                    : (InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_VARIATION_PASSWORD));
112
113            // Update the breadcrumb (title) if this is embedded in a PreferenceActivity
114            if (activity instanceof PreferenceActivity) {
115                final PreferenceActivity preferenceActivity = (PreferenceActivity) activity;
116                int id = isAlpha ? R.string.lockpassword_confirm_your_password_header
117                        : R.string.lockpassword_confirm_your_pin_header;
118                CharSequence title = getText(id);
119                preferenceActivity.showBreadCrumbs(title, title);
120            }
121
122            return view;
123        }
124
125        @Override
126        public void onPause() {
127            super.onPause();
128            mKeyboardView.requestFocus();
129        }
130
131        @Override
132        public void onResume() {
133            // TODO Auto-generated method stub
134            super.onResume();
135            mKeyboardView.requestFocus();
136        }
137
138        private void handleNext() {
139            final String pin = mPasswordEntry.getText().toString();
140            if (mLockPatternUtils.checkPassword(pin)) {
141
142                Intent intent = new Intent();
143                intent.putExtra("password", pin);
144
145                getActivity().setResult(RESULT_OK, intent);
146                getActivity().finish();
147            } else {
148                showError(R.string.lockpattern_need_to_unlock_wrong);
149            }
150        }
151
152        public void onClick(View v) {
153            switch (v.getId()) {
154                case R.id.next_button:
155                    handleNext();
156                    break;
157
158                case R.id.cancel_button:
159                    getActivity().setResult(RESULT_CANCELED);
160                    getActivity().finish();
161                    break;
162            }
163        }
164
165        private void showError(int msg) {
166            mHeaderText.setText(msg);
167            mPasswordEntry.setText(null);
168            mHandler.postDelayed(new Runnable() {
169                public void run() {
170                    mHeaderText.setText(R.string.lockpassword_confirm_your_password_header);
171                }
172            }, ERROR_MESSAGE_TIMEOUT);
173        }
174
175        public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
176            // Check if this was the result of hitting the enter or "done" key
177            if (actionId == EditorInfo.IME_NULL
178                    || actionId == EditorInfo.IME_ACTION_DONE
179                    || actionId == EditorInfo.IME_ACTION_NEXT) {
180                handleNext();
181                return true;
182            }
183            return false;
184        }
185    }
186}
187