1/*
2 * Copyright (C) 2012 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.internal.policy.impl.keyguard;
18
19import android.content.Context;
20import android.text.Editable;
21import android.text.InputType;
22import android.text.TextWatcher;
23import android.text.method.DigitsKeyListener;
24import android.util.AttributeSet;
25import android.view.View;
26import android.widget.TextView.OnEditorActionListener;
27
28import com.android.internal.R;
29
30/**
31 * Displays a PIN pad for unlocking.
32 */
33public class KeyguardPINView extends KeyguardAbsKeyInputView
34        implements KeyguardSecurityView, OnEditorActionListener, TextWatcher {
35
36    public KeyguardPINView(Context context) {
37        this(context, null);
38    }
39
40    public KeyguardPINView(Context context, AttributeSet attrs) {
41        super(context, attrs);
42    }
43
44    protected void resetState() {
45        if (KeyguardUpdateMonitor.getInstance(mContext).getMaxBiometricUnlockAttemptsReached()) {
46            mSecurityMessageDisplay.setMessage(R.string.faceunlock_multiple_failures, true);
47        } else {
48            mSecurityMessageDisplay.setMessage(R.string.kg_pin_instructions, false);
49        }
50        mPasswordEntry.setEnabled(true);
51    }
52
53    @Override
54    protected int getPasswordTextViewId() {
55        return R.id.pinEntry;
56    }
57
58    @Override
59    protected void onFinishInflate() {
60        super.onFinishInflate();
61
62        final View ok = findViewById(R.id.key_enter);
63        if (ok != null) {
64            ok.setOnClickListener(new View.OnClickListener() {
65                @Override
66                public void onClick(View v) {
67                    doHapticKeyClick();
68                    if (mPasswordEntry.isEnabled()) {
69                        verifyPasswordAndUnlock();
70                    }
71                }
72            });
73            ok.setOnHoverListener(new LiftToActivateListener(getContext()));
74        }
75
76        // The delete button is of the PIN keyboard itself in some (e.g. tablet) layouts,
77        // not a separate view
78        View pinDelete = findViewById(R.id.delete_button);
79        if (pinDelete != null) {
80            pinDelete.setVisibility(View.VISIBLE);
81            pinDelete.setOnClickListener(new OnClickListener() {
82                public void onClick(View v) {
83                    // check for time-based lockouts
84                    if (mPasswordEntry.isEnabled()) {
85                        CharSequence str = mPasswordEntry.getText();
86                        if (str.length() > 0) {
87                            mPasswordEntry.setText(str.subSequence(0, str.length()-1));
88                        }
89                    }
90                    doHapticKeyClick();
91                }
92            });
93            pinDelete.setOnLongClickListener(new View.OnLongClickListener() {
94                public boolean onLongClick(View v) {
95                    // check for time-based lockouts
96                    if (mPasswordEntry.isEnabled()) {
97                        mPasswordEntry.setText("");
98                    }
99                    doHapticKeyClick();
100                    return true;
101                }
102            });
103        }
104
105        mPasswordEntry.setKeyListener(DigitsKeyListener.getInstance());
106        mPasswordEntry.setInputType(InputType.TYPE_CLASS_NUMBER
107                | InputType.TYPE_NUMBER_VARIATION_PASSWORD);
108
109        mPasswordEntry.requestFocus();
110    }
111
112    @Override
113    public void showUsabilityHint() {
114    }
115
116    @Override
117    public int getWrongPasswordStringId() {
118        return R.string.kg_wrong_pin;
119    }
120}
121