KeyguardSimPukView.java revision 6fb841fa219eaae3e87f2fdc05e105d7a1813c42 
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
134        // We always set a dummy NavigationManager to avoid null checks
135        mSecurityMessageDisplay = new KeyguardNavigationManager(null);
136
137        mSimPinEntry = (TextView) findViewById(R.id.sim_pin_entry);
138        mSimPinEntry.setOnEditorActionListener(this);
139        mSimPinEntry.addTextChangedListener(this);
140        mDeleteButton = findViewById(R.id.delete_button);
141        mDeleteButton.setOnClickListener(this);
142        mKeyboardView = (PasswordEntryKeyboardView) findViewById(R.id.keyboard);
143        mKeyboardHelper = new PasswordEntryKeyboardHelper(mContext, mKeyboardView, this, false,
144                new int[] {
145                R.xml.kg_password_kbd_numeric,
146                com.android.internal.R.xml.password_kbd_qwerty,
147                com.android.internal.R.xml.password_kbd_qwerty_shifted,
148                com.android.internal.R.xml.password_kbd_symbols,
149                com.android.internal.R.xml.password_kbd_symbols_shift
150                });
151        mKeyboardHelper.setKeyboardMode(PasswordEntryKeyboardHelper.KEYBOARD_MODE_NUMERIC);
152        mKeyboardHelper.setEnableHaptics(mLockPatternUtils.isTactileFeedbackEnabled());
153        reset();
154    }
155
156    @Override
157    protected boolean onRequestFocusInDescendants(int direction, Rect previouslyFocusedRect) {
158        return mSimPinEntry.requestFocus(direction, previouslyFocusedRect);
159    }
160
161    public boolean needsInput() {
162        return false; // This view provides its own keypad
163    }
164
165    public void onPause() {
166
167    }
168
169    public void onResume() {
170        reset();
171    }
172
173    @Override
174    public void showUsabilityHint() {
175    }
176
177    /** {@inheritDoc} */
178    public void cleanUp() {
179        // dismiss the dialog.
180        if (mSimUnlockProgressDialog != null) {
181            mSimUnlockProgressDialog.dismiss();
182            mSimUnlockProgressDialog = null;
183        }
184    }
185
186    /**
187     * Since the IPC can block, we want to run the request in a separate thread
188     * with a callback.
189     */
190    private abstract class CheckSimPuk extends Thread {
191
192        private final String mPin, mPuk;
193
194        protected CheckSimPuk(String puk, String pin) {
195            mPuk = puk;
196            mPin = pin;
197        }
198
199        abstract void onSimLockChangedResponse(boolean success);
200
201        @Override
202        public void run() {
203            try {
204                final boolean result = ITelephony.Stub.asInterface(ServiceManager
205                        .checkService("phone")).supplyPuk(mPuk, mPin);
206
207                post(new Runnable() {
208                    public void run() {
209                        onSimLockChangedResponse(result);
210                    }
211                });
212            } catch (RemoteException e) {
213                post(new Runnable() {
214                    public void run() {
215                        onSimLockChangedResponse(false);
216                    }
217                });
218            }
219        }
220    }
221
222    public void onClick(View v) {
223        if (v == mDeleteButton) {
224            mSimPinEntry.requestFocus();
225            final Editable digits = mSimPinEntry.getEditableText();
226            final int len = digits.length();
227            if (len > 0) {
228                digits.delete(len-1, len);
229            }
230        }
231        mCallback.userActivity(KeyguardViewManager.DIGIT_PRESS_WAKE_MILLIS);
232    }
233
234    private Dialog getSimUnlockProgressDialog() {
235        if (mSimUnlockProgressDialog == null) {
236            mSimUnlockProgressDialog = new ProgressDialog(mContext);
237            mSimUnlockProgressDialog.setMessage(mContext.getString(
238                    R.string.kg_sim_unlock_progress_dialog_message));
239            mSimUnlockProgressDialog.setIndeterminate(true);
240            mSimUnlockProgressDialog.setCancelable(false);
241            if (!(mContext instanceof Activity)) {
242                mSimUnlockProgressDialog.getWindow().setType(
243                        WindowManager.LayoutParams.TYPE_KEYGUARD_DIALOG);
244            }
245        }
246        return mSimUnlockProgressDialog;
247    }
248
249    private boolean checkPuk() {
250        // make sure the puk is at least 8 digits long.
251        if (mSimPinEntry.getText().length() >= 8) {
252            mPukText = mSimPinEntry.getText().toString();
253            return true;
254        }
255        return false;
256    }
257
258    private boolean checkPin() {
259        // make sure the PIN is between 4 and 8 digits
260        int length = mSimPinEntry.getText().length();
261        if (length >= 4 && length <= 8) {
262            mPinText = mSimPinEntry.getText().toString();
263            return true;
264        }
265        return false;
266    }
267
268    public boolean confirmPin() {
269        return mPinText.equals(mSimPinEntry.getText().toString());
270    }
271
272    private void updateSim() {
273        getSimUnlockProgressDialog().show();
274
275        if (!mCheckInProgress) {
276            mCheckInProgress = true;
277            new CheckSimPuk(mPukText, mPinText) {
278                void onSimLockChangedResponse(final boolean success) {
279                    post(new Runnable() {
280                        public void run() {
281                            if (mSimUnlockProgressDialog != null) {
282                                mSimUnlockProgressDialog.hide();
283                            }
284                            if (success) {
285                                mCallback.dismiss(true);
286                            } else {
287                                mStateMachine.reset();
288                                mSecurityMessageDisplay.setMessage(R.string.kg_invalid_puk, true);
289                            }
290                            mCheckInProgress = false;
291                        }
292                    });
293                }
294            }.start();
295        }
296    }
297
298    @Override
299    public boolean onEditorAction(TextView view, int actionId, KeyEvent event) {
300        // Check if this was the result of hitting the enter key
301        mCallback.userActivity(KeyguardViewManager.DIGIT_PRESS_WAKE_MILLIS);
302        if (event.getAction() == MotionEvent.ACTION_DOWN) {
303            if (actionId == EditorInfo.IME_NULL || actionId == EditorInfo.IME_ACTION_DONE
304                || actionId == EditorInfo.IME_ACTION_NEXT) {
305                mStateMachine.next();
306                return true;
307            }
308        }
309        return false;
310    }
311
312    @Override
313    public void setLockPatternUtils(LockPatternUtils utils) {
314        mLockPatternUtils = utils;
315    }
316
317    @Override
318    public void reset() {
319        mStateMachine.reset();
320    }
321
322    @Override
323    public KeyguardSecurityCallback getCallback() {
324        return mCallback;
325    }
326
327    @Override
328    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
329        if (mCallback != null) {
330            mCallback.userActivity(KeyguardViewManager.DIGIT_PRESS_WAKE_MILLIS);
331        }
332    }
333
334    @Override
335    public void onTextChanged(CharSequence s, int start, int before, int count) {
336    }
337
338    @Override
339    public void afterTextChanged(Editable s) {
340    }
341
342    @Override
343    public void setSecurityMessageDisplay(SecurityMessageDisplay display) {
344        mSecurityMessageDisplay = display;
345        reset();
346    }
347}
348