KeyguardSimPukView.java revision 87d57952af662a94637c1519b2189e22456af2db 
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 = R.string.lockscreen_sim_unlock_progress_dialog_message;
95                    updateSim();
96                } else {
97                    msg = R.string.kg_invalid_confirm_pin_hint;
98                }
99            }
100            mSimPinEntry.setText(null);
101            if (msg != 0) {
102                mSecurityMessageDisplay.setMessage(msg, true);
103            }
104        }
105
106        void reset() {
107            mPinText="";
108            mPukText="";
109            state = ENTER_PUK;
110            mSecurityMessageDisplay.setMessage(R.string.kg_puk_enter_puk_hint, true);
111            mSimPinEntry.requestFocus();
112        }
113    }
114
115    public KeyguardSimPukView(Context context) {
116        this(context, null);
117    }
118
119    public KeyguardSimPukView(Context context, AttributeSet attrs) {
120        super(context, attrs);
121        mLockPatternUtils = new LockPatternUtils(getContext());
122    }
123
124    public void setKeyguardCallback(KeyguardSecurityCallback callback) {
125        mCallback = callback;
126        mLockPatternUtils = new LockPatternUtils(getContext());
127    }
128
129    @Override
130    protected void onFinishInflate() {
131        super.onFinishInflate();
132
133        // We always set a dummy NavigationManager to avoid null checks
134        mSecurityMessageDisplay = new KeyguardNavigationManager(null);
135
136        mSimPinEntry = (TextView) findViewById(R.id.sim_pin_entry);
137        mSimPinEntry.setOnEditorActionListener(this);
138        mSimPinEntry.addTextChangedListener(this);
139        mDeleteButton = findViewById(R.id.delete_button);
140        mDeleteButton.setOnClickListener(this);
141        mKeyboardView = (PasswordEntryKeyboardView) findViewById(R.id.keyboard);
142        mKeyboardHelper = new PasswordEntryKeyboardHelper(mContext, mKeyboardView, this, false,
143                new int[] {
144                R.xml.kg_password_kbd_numeric,
145                com.android.internal.R.xml.password_kbd_qwerty,
146                com.android.internal.R.xml.password_kbd_qwerty_shifted,
147                com.android.internal.R.xml.password_kbd_symbols,
148                com.android.internal.R.xml.password_kbd_symbols_shift
149                });
150        mKeyboardHelper.setKeyboardMode(PasswordEntryKeyboardHelper.KEYBOARD_MODE_NUMERIC);
151        mKeyboardHelper.setEnableHaptics(mLockPatternUtils.isTactileFeedbackEnabled());
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    /** {@inheritDoc} */
173    public void cleanUp() {
174        // dismiss the dialog.
175        if (mSimUnlockProgressDialog != null) {
176            mSimUnlockProgressDialog.dismiss();
177            mSimUnlockProgressDialog = null;
178        }
179    }
180
181    /**
182     * Since the IPC can block, we want to run the request in a separate thread
183     * with a callback.
184     */
185    private abstract class CheckSimPuk extends Thread {
186
187        private final String mPin, mPuk;
188
189        protected CheckSimPuk(String puk, String pin) {
190            mPuk = puk;
191            mPin = pin;
192        }
193
194        abstract void onSimLockChangedResponse(boolean success);
195
196        @Override
197        public void run() {
198            try {
199                final boolean result = ITelephony.Stub.asInterface(ServiceManager
200                        .checkService("phone")).supplyPuk(mPuk, mPin);
201
202                post(new Runnable() {
203                    public void run() {
204                        onSimLockChangedResponse(result);
205                    }
206                });
207            } catch (RemoteException e) {
208                post(new Runnable() {
209                    public void run() {
210                        onSimLockChangedResponse(false);
211                    }
212                });
213            }
214        }
215    }
216
217    public void onClick(View v) {
218        if (v == mDeleteButton) {
219            mSimPinEntry.requestFocus();
220            final Editable digits = mSimPinEntry.getEditableText();
221            final int len = digits.length();
222            if (len > 0) {
223                digits.delete(len-1, len);
224            }
225        }
226        mCallback.userActivity(KeyguardViewManager.DIGIT_PRESS_WAKE_MILLIS);
227    }
228
229    private Dialog getSimUnlockProgressDialog() {
230        if (mSimUnlockProgressDialog == null) {
231            mSimUnlockProgressDialog = new ProgressDialog(mContext);
232            mSimUnlockProgressDialog.setMessage(mContext.getString(
233                    R.string.kg_sim_unlock_progress_dialog_message));
234            mSimUnlockProgressDialog.setIndeterminate(true);
235            mSimUnlockProgressDialog.setCancelable(false);
236            if (!(mContext instanceof Activity)) {
237                mSimUnlockProgressDialog.getWindow().setType(
238                        WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
239            }
240        }
241        return mSimUnlockProgressDialog;
242    }
243
244    private boolean checkPuk() {
245        // make sure the puk is at least 8 digits long.
246        if (mSimPinEntry.getText().length() >= 8) {
247            mPukText = mSimPinEntry.getText().toString();
248            return true;
249        }
250        return false;
251    }
252
253    private boolean checkPin() {
254        // make sure the PIN is between 4 and 8 digits
255        int length = mSimPinEntry.getText().length();
256        if (length >= 4 && length <= 8) {
257            mPinText = mSimPinEntry.getText().toString();
258            return true;
259        }
260        return false;
261    }
262
263    public boolean confirmPin() {
264        return mPinText.equals(mSimPinEntry.getText().toString());
265    }
266
267    private void updateSim() {
268        getSimUnlockProgressDialog().show();
269
270        if (!mCheckInProgress) {
271            mCheckInProgress = true;
272            new CheckSimPuk(mPukText, mPinText) {
273                void onSimLockChangedResponse(final boolean success) {
274                    post(new Runnable() {
275                        public void run() {
276                            if (mSimUnlockProgressDialog != null) {
277                                mSimUnlockProgressDialog.hide();
278                            }
279                            if (success) {
280                                mCallback.dismiss(true);
281                            } else {
282                                mStateMachine.reset();
283                                mSecurityMessageDisplay.setMessage(R.string.kg_invalid_puk, true);
284                            }
285                            mCheckInProgress = false;
286                        }
287                    });
288                }
289            }.start();
290        }
291    }
292
293    @Override
294    public boolean onEditorAction(TextView view, int actionId, KeyEvent event) {
295        // Check if this was the result of hitting the enter key
296        mCallback.userActivity(KeyguardViewManager.DIGIT_PRESS_WAKE_MILLIS);
297        if (event.getAction() == MotionEvent.ACTION_DOWN) {
298            if (actionId == EditorInfo.IME_NULL || actionId == EditorInfo.IME_ACTION_DONE
299                || actionId == EditorInfo.IME_ACTION_NEXT) {
300                mStateMachine.next();
301                return true;
302            }
303        }
304        return false;
305    }
306
307    @Override
308    public void setLockPatternUtils(LockPatternUtils utils) {
309        mLockPatternUtils = utils;
310    }
311
312    @Override
313    public void reset() {
314        mStateMachine.reset();
315    }
316
317    @Override
318    public KeyguardSecurityCallback getCallback() {
319        return mCallback;
320    }
321
322    @Override
323    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
324        if (mCallback != null) {
325            mCallback.userActivity(KeyguardViewManager.DIGIT_PRESS_WAKE_MILLIS);
326        }
327    }
328
329    @Override
330    public void onTextChanged(CharSequence s, int start, int before, int count) {
331    }
332
333    @Override
334    public void afterTextChanged(Editable s) {
335    }
336
337    @Override
338    public void setSecurityMessageDisplay(SecurityMessageDisplay display) {
339        mSecurityMessageDisplay = display;
340        reset();
341    }
342}
343