KeyguardSimPinView.java revision 0a4f900463024908220d0c9bf4b291a6e1284846 
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.app.Activity;
20import android.app.Dialog;
21import android.app.ProgressDialog;
22import android.content.Context;
23import android.graphics.Rect;
24import android.os.RemoteException;
25import android.os.ServiceManager;
26
27import com.android.internal.telephony.ITelephony;
28import com.android.internal.widget.LockPatternUtils;
29import com.android.internal.widget.PasswordEntryKeyboardHelper;
30import com.android.internal.widget.PasswordEntryKeyboardView;
31import com.android.internal.R;
32
33import android.text.Editable;
34import android.text.TextWatcher;
35import android.util.AttributeSet;
36import android.view.KeyEvent;
37import android.view.MotionEvent;
38import android.view.View;
39import android.view.WindowManager;
40import android.view.inputmethod.EditorInfo;
41import android.widget.EditText;
42import android.widget.LinearLayout;
43import android.widget.TextView;
44import android.widget.TextView.OnEditorActionListener;
45
46/**
47 * Displays a dialer like interface to unlock the SIM PIN.
48 */
49public class KeyguardSimPinView extends LinearLayout
50        implements KeyguardSecurityView, OnEditorActionListener, TextWatcher {
51
52    private EditText mPinEntry;
53    private ProgressDialog mSimUnlockProgressDialog = null;
54    private KeyguardSecurityCallback mCallback;
55    private PasswordEntryKeyboardView mKeyboardView;
56    private PasswordEntryKeyboardHelper mKeyboardHelper;
57    private LockPatternUtils mLockPatternUtils;
58    private SecurityMessageDisplay mSecurityMessageDisplay;
59
60    private volatile boolean mSimCheckInProgress;
61
62    public KeyguardSimPinView(Context context) {
63        this(context, null);
64    }
65
66    public KeyguardSimPinView(Context context, AttributeSet attrs) {
67        super(context, attrs);
68        mLockPatternUtils = new LockPatternUtils(getContext());
69    }
70
71    public void setKeyguardCallback(KeyguardSecurityCallback callback) {
72        mCallback = callback;
73    }
74
75    @Override
76    protected void onFinishInflate() {
77        super.onFinishInflate();
78
79        mPinEntry = (EditText) findViewById(R.id.sim_pin_entry);
80        mPinEntry.setOnEditorActionListener(this);
81        mPinEntry.addTextChangedListener(this);
82
83        mKeyboardView = (PasswordEntryKeyboardView) findViewById(R.id.keyboard);
84        mKeyboardHelper = new PasswordEntryKeyboardHelper(mContext, mKeyboardView, this, false,
85                new int[] {
86                R.xml.kg_password_kbd_numeric,
87                com.android.internal.R.xml.password_kbd_qwerty,
88                com.android.internal.R.xml.password_kbd_qwerty_shifted,
89                com.android.internal.R.xml.password_kbd_symbols,
90                com.android.internal.R.xml.password_kbd_symbols_shift
91                });
92        mKeyboardHelper.setKeyboardMode(PasswordEntryKeyboardHelper.KEYBOARD_MODE_NUMERIC);
93        mKeyboardHelper.setEnableHaptics(mLockPatternUtils.isTactileFeedbackEnabled());
94
95        final View deleteButton = findViewById(R.id.delete_button);
96        if (deleteButton != null) {
97            deleteButton.setOnClickListener(new OnClickListener() {
98                public void onClick(View v) {
99                    mKeyboardHelper.handleBackspace();
100                }
101            });
102        }
103        reset();
104    }
105
106    @Override
107    protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) {
108        return mPinEntry.requestFocus(direction, previouslyFocusedRect);
109    }
110
111    public void reset() {
112        // start fresh
113        if (mSecurityMessageDisplay != null) {
114            mSecurityMessageDisplay.setMessage(R.string.kg_sim_pin_instructions, true);
115        }
116
117        // make sure that the number of entered digits is consistent when we
118        // erase the SIM unlock code, including orientation changes.
119        mPinEntry.setText("");
120        mPinEntry.requestFocus();
121    }
122
123    /** {@inheritDoc} */
124    public void cleanUp() {
125        // dismiss the dialog.
126        if (mSimUnlockProgressDialog != null) {
127            mSimUnlockProgressDialog.dismiss();
128            mSimUnlockProgressDialog = null;
129        }
130    }
131
132    /**
133     * Since the IPC can block, we want to run the request in a separate thread
134     * with a callback.
135     */
136    private abstract class CheckSimPin extends Thread {
137        private final String mPin;
138
139        protected CheckSimPin(String pin) {
140            mPin = pin;
141        }
142
143        abstract void onSimCheckResponse(boolean success);
144
145        @Override
146        public void run() {
147            try {
148                final boolean result = ITelephony.Stub.asInterface(ServiceManager
149                        .checkService("phone")).supplyPin(mPin);
150                post(new Runnable() {
151                    public void run() {
152                        onSimCheckResponse(result);
153                    }
154                });
155            } catch (RemoteException e) {
156                post(new Runnable() {
157                    public void run() {
158                        onSimCheckResponse(false);
159                    }
160                });
161            }
162        }
163    }
164
165    public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
166        // Check if this was the result of hitting the enter key
167        mCallback.userActivity(KeyguardViewManager.DIGIT_PRESS_WAKE_MILLIS);
168        if (event.getAction() == MotionEvent.ACTION_DOWN && (
169                actionId == EditorInfo.IME_NULL
170                || actionId == EditorInfo.IME_ACTION_DONE
171                || actionId == EditorInfo.IME_ACTION_NEXT)) {
172            checkPin();
173            return true;
174        }
175        return false;
176    }
177
178    private Dialog getSimUnlockProgressDialog() {
179        if (mSimUnlockProgressDialog == null) {
180            mSimUnlockProgressDialog = new ProgressDialog(mContext);
181            mSimUnlockProgressDialog.setMessage(
182                    mContext.getString(R.string.kg_sim_unlock_progress_dialog_message));
183            mSimUnlockProgressDialog.setIndeterminate(true);
184            mSimUnlockProgressDialog.setCancelable(false);
185            if (!(mContext instanceof Activity)) {
186                mSimUnlockProgressDialog.getWindow().setType(
187                        WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
188            }
189        }
190        return mSimUnlockProgressDialog;
191    }
192
193    private void checkPin() {
194        if (mPinEntry.getText().length() < 4) {
195            // otherwise, display a message to the user, and don't submit.
196            mSecurityMessageDisplay.setMessage(R.string.kg_invalid_sim_pin_hint, true);
197            mPinEntry.setText("");
198            mCallback.userActivity(0);
199            return;
200        }
201
202        getSimUnlockProgressDialog().show();
203
204        if (!mSimCheckInProgress) {
205            mSimCheckInProgress = true; // there should be only one
206            new CheckSimPin(mPinEntry.getText().toString()) {
207                void onSimCheckResponse(final boolean success) {
208                    post(new Runnable() {
209                        public void run() {
210                            if (mSimUnlockProgressDialog != null) {
211                                mSimUnlockProgressDialog.hide();
212                            }
213                            if (success) {
214                                // before closing the keyguard, report back that the sim is unlocked
215                                // so it knows right away.
216                                KeyguardUpdateMonitor.getInstance(getContext()).reportSimUnlocked();
217                                mCallback.dismiss(true);
218                            } else {
219                                mSecurityMessageDisplay.setMessage
220                                    (R.string.kg_password_wrong_pin_code, true);
221                                mPinEntry.setText("");
222                            }
223                            mCallback.userActivity(0);
224                            mSimCheckInProgress = false;
225                        }
226                    });
227                }
228            }.start();
229        }
230    }
231
232    public void setLockPatternUtils(LockPatternUtils utils) {
233        mLockPatternUtils = utils;
234    }
235
236    public boolean needsInput() {
237        return false; // This view provides its own keypad
238    }
239
240    public void onPause() {
241
242    }
243
244    public void onResume() {
245        reset();
246    }
247
248    public KeyguardSecurityCallback getCallback() {
249        return mCallback;
250    }
251
252    @Override
253    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
254        if (mCallback != null) {
255            mCallback.userActivity(KeyguardViewManager.DIGIT_PRESS_WAKE_MILLIS);
256        }
257    }
258
259    @Override
260    public void onTextChanged(CharSequence s, int start, int before, int count) {
261    }
262
263    @Override
264    public void afterTextChanged(Editable s) {
265    }
266
267    @Override
268    public void setSecurityMessageDisplay(SecurityMessageDisplay display) {
269        mSecurityMessageDisplay = display;
270        reset();
271    }
272}
273