KeyguardSimPukView.java revision 0b728244dc87b4a453f2191c2cb37a86e91aee0a 
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 */
16package com.android.internal.policy.impl.keyguard;
17
18import android.app.Activity;
19import android.app.Dialog;
20import android.app.ProgressDialog;
21import android.content.Context;
22import android.graphics.Rect;
23import android.os.RemoteException;
24import android.os.ServiceManager;
25import android.text.Editable;
26import android.text.TextWatcher;
27import android.util.AttributeSet;
28import android.view.KeyEvent;
29import android.view.MotionEvent;
30import android.view.View;
31import android.view.WindowManager;
32import android.view.inputmethod.EditorInfo;
33import android.widget.LinearLayout;
34import android.widget.TextView;
35import android.widget.TextView.OnEditorActionListener;
36
37import com.android.internal.telephony.ITelephony;
38import com.android.internal.widget.LockPatternUtils;
39import com.android.internal.widget.PasswordEntryKeyboardHelper;
40import com.android.internal.widget.PasswordEntryKeyboardView;
41import com.android.internal.R;
42
43public class KeyguardSimPukView extends LinearLayout implements View.OnClickListener,
44    KeyguardSecurityView, OnEditorActionListener, TextWatcher {
45
46    private View mDeleteButton;
47
48    private ProgressDialog mSimUnlockProgressDialog = null;
49    private KeyguardSecurityCallback mCallback;
50
51    private SecurityMessageDisplay mSecurityMessageDisplay;
52
53    private PasswordEntryKeyboardView mKeyboardView;
54
55    private PasswordEntryKeyboardHelper mKeyboardHelper;
56
57    private LockPatternUtils mLockPatternUtils;
58
59    private volatile boolean mCheckInProgress;
60
61    private TextView mSimPinEntry;
62
63    private String mPukText;
64
65    private String mPinText;
66    private StateMachine mStateMachine = new StateMachine();
67
68    private class StateMachine {
69        final int ENTER_PUK = 0;
70        final int ENTER_PIN = 1;
71        final int CONFIRM_PIN = 2;
72        final int DONE = 3;
73        private int state = ENTER_PUK;
74
75        public void next() {
76            int msg = 0;
77            if (state == ENTER_PUK) {
78                if (checkPuk()) {
79                    state = ENTER_PIN;
80                    msg = R.string.kg_puk_enter_pin_hint;
81                } else {
82                    msg = R.string.kg_invalid_sim_puk_hint;
83                }
84            } else if (state == ENTER_PIN) {
85                if (checkPin()) {
86                    state = CONFIRM_PIN;
87                    msg = R.string.kg_enter_confirm_pin_hint;
88                } else {
89                    msg = R.string.kg_invalid_sim_pin_hint;
90                }
91            } else if (state == CONFIRM_PIN) {
92                if (confirmPin()) {
93                    state = DONE;
94                    msg =
95                        com.android.internal.R.string.lockscreen_sim_unlock_progress_dialog_message;
96                    updateSim();
97                } else {
98                    msg = R.string.kg_invalid_confirm_pin_hint;
99                }
100            }
101            mSimPinEntry.setText(null);
102            if (msg != 0) {
103                mSecurityMessageDisplay.setMessage(msg, true);
104            }
105        }
106
107        void reset() {
108            mPinText="";
109            mPukText="";
110            state = ENTER_PUK;
111            mSecurityMessageDisplay.setMessage(R.string.kg_puk_enter_puk_hint, true);
112            mSimPinEntry.requestFocus();
113        }
114    }
115
116    public KeyguardSimPukView(Context context) {
117        this(context, null);
118    }
119
120    public KeyguardSimPukView(Context context, AttributeSet attrs) {
121        super(context, attrs);
122        mLockPatternUtils = new LockPatternUtils(getContext());
123    }
124
125    public void setKeyguardCallback(KeyguardSecurityCallback callback) {
126        mCallback = callback;
127        mLockPatternUtils = new LockPatternUtils(getContext());
128    }
129
130    @Override
131    protected void onFinishInflate() {
132        super.onFinishInflate();
133        mSimPinEntry = (TextView) findViewById(R.id.sim_pin_entry);
134        mSimPinEntry.setOnEditorActionListener(this);
135        mSimPinEntry.addTextChangedListener(this);
136        mDeleteButton = findViewById(R.id.delete_button);
137        mDeleteButton.setOnClickListener(this);
138        mKeyboardView = (PasswordEntryKeyboardView) findViewById(R.id.keyboard);
139        mKeyboardHelper = new PasswordEntryKeyboardHelper(mContext, mKeyboardView, this, false,
140                new int[] {
141                R.xml.kg_password_kbd_numeric,
142                com.android.internal.R.xml.password_kbd_qwerty,
143                com.android.internal.R.xml.password_kbd_qwerty_shifted,
144                com.android.internal.R.xml.password_kbd_symbols,
145                com.android.internal.R.xml.password_kbd_symbols_shift
146                });
147        mKeyboardHelper.setKeyboardMode(PasswordEntryKeyboardHelper.KEYBOARD_MODE_NUMERIC);
148        mKeyboardHelper.setEnableHaptics(mLockPatternUtils.isTactileFeedbackEnabled());
149
150        mSecurityMessageDisplay = new KeyguardMessageArea.Helper(this);
151        mSecurityMessageDisplay.setTimeout(0); // don't show ownerinfo/charging status by default
152        reset();
153    }
154
155    @Override
156    protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) {
157        return mSimPinEntry.requestFocus(direction, previouslyFocusedRect);
158    }
159
160    public boolean needsInput() {
161        return false; // This view provides its own keypad
162    }
163
164    public void onPause() {
165
166    }
167
168    public void onResume() {
169        reset();
170    }
171
172    @Override
173    public void showUsabilityHint() {
174    }
175
176    /** {@inheritDoc} */
177    public void cleanUp() {
178        // dismiss the dialog.
179        if (mSimUnlockProgressDialog != null) {
180            mSimUnlockProgressDialog.dismiss();
181            mSimUnlockProgressDialog = null;
182        }
183    }
184
185    /**
186     * Since the IPC can block, we want to run the request in a separate thread
187     * with a callback.
188     */
189    private abstract class CheckSimPuk extends Thread {
190
191        private final String mPin, mPuk;
192
193        protected CheckSimPuk(String puk, String pin) {
194            mPuk = puk;
195            mPin = pin;
196        }
197
198        abstract void onSimLockChangedResponse(boolean success);
199
200        @Override
201        public void run() {
202            try {
203                final boolean result = ITelephony.Stub.asInterface(ServiceManager
204                        .checkService("phone")).supplyPuk(mPuk, mPin);
205
206                post(new Runnable() {
207                    public void run() {
208                        onSimLockChangedResponse(result);
209                    }
210                });
211            } catch (RemoteException e) {
212                post(new Runnable() {
213                    public void run() {
214                        onSimLockChangedResponse(false);
215                    }
216                });
217            }
218        }
219    }
220
221    public void onClick(View v) {
222        if (v == mDeleteButton) {
223            mSimPinEntry.requestFocus();
224            final Editable digits = mSimPinEntry.getEditableText();
225            final int len = digits.length();
226            if (len > 0) {
227                digits.delete(len-1, len);
228            }
229        }
230        mCallback.userActivity(KeyguardViewManager.DIGIT_PRESS_WAKE_MILLIS);
231    }
232
233    private Dialog getSimUnlockProgressDialog() {
234        if (mSimUnlockProgressDialog == null) {
235            mSimUnlockProgressDialog = new ProgressDialog(mContext);
236            mSimUnlockProgressDialog.setMessage(mContext.getString(
237                    R.string.kg_sim_unlock_progress_dialog_message));
238            mSimUnlockProgressDialog.setIndeterminate(true);
239            mSimUnlockProgressDialog.setCancelable(false);
240            if (!(mContext instanceof Activity)) {
241                mSimUnlockProgressDialog.getWindow().setType(
242                        WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
243            }
244        }
245        return mSimUnlockProgressDialog;
246    }
247
248    private boolean checkPuk() {
249        // make sure the puk is at least 8 digits long.
250        if (mSimPinEntry.getText().length() >= 8) {
251            mPukText = mSimPinEntry.getText().toString();
252            return true;
253        }
254        return false;
255    }
256
257    private boolean checkPin() {
258        // make sure the PIN is between 4 and 8 digits
259        int length = mSimPinEntry.getText().length();
260        if (length >= 4 && length <= 8) {
261            mPinText = mSimPinEntry.getText().toString();
262            return true;
263        }
264        return false;
265    }
266
267    public boolean confirmPin() {
268        return mPinText.equals(mSimPinEntry.getText().toString());
269    }
270
271    private void updateSim() {
272        getSimUnlockProgressDialog().show();
273
274        if (!mCheckInProgress) {
275            mCheckInProgress = true;
276            new CheckSimPuk(mPukText, mPinText) {
277                void onSimLockChangedResponse(final boolean success) {
278                    post(new Runnable() {
279                        public void run() {
280                            if (mSimUnlockProgressDialog != null) {
281                                mSimUnlockProgressDialog.hide();
282                            }
283                            if (success) {
284                                mCallback.dismiss(true);
285                            } else {
286                                mStateMachine.reset();
287                                mSecurityMessageDisplay.setMessage(R.string.kg_invalid_puk, true);
288                            }
289                            mCheckInProgress = false;
290                        }
291                    });
292                }
293            }.start();
294        }
295    }
296
297    @Override
298    public boolean onEditorAction(TextView view, int actionId, KeyEvent event) {
299        // Check if this was the result of hitting the enter key
300        mCallback.userActivity(KeyguardViewManager.DIGIT_PRESS_WAKE_MILLIS);
301        if (event.getAction() == MotionEvent.ACTION_DOWN) {
302            if (actionId == EditorInfo.IME_NULL || actionId == EditorInfo.IME_ACTION_DONE
303                || actionId == EditorInfo.IME_ACTION_NEXT) {
304                mStateMachine.next();
305                return true;
306            }
307        }
308        return false;
309    }
310
311    @Override
312    public void setLockPatternUtils(LockPatternUtils utils) {
313        mLockPatternUtils = utils;
314    }
315
316    @Override
317    public void reset() {
318        mStateMachine.reset();
319    }
320
321    @Override
322    public KeyguardSecurityCallback getCallback() {
323        return mCallback;
324    }
325
326    @Override
327    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
328        if (mCallback != null) {
329            mCallback.userActivity(KeyguardViewManager.DIGIT_PRESS_WAKE_MILLIS);
330        }
331    }
332
333    @Override
334    public void onTextChanged(CharSequence s, int start, int before, int count) {
335    }
336
337    @Override
338    public void afterTextChanged(Editable s) {
339    }
340}
341