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1 /*
2  * Copyright (C) 2014 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 
17 package com.android.systemui.keyguard;
18 
19 import android.annotation.UserIdInt;
20 import android.app.Activity;
21 import android.app.ActivityManager;
22 import android.app.ActivityManagerNative;
23 import android.app.AlarmManager;
24 import android.app.PendingIntent;
25 import android.app.SearchManager;
26 import android.app.StatusBarManager;
27 import android.app.trust.TrustManager;
28 import android.content.BroadcastReceiver;
29 import android.content.ContentResolver;
30 import android.content.Context;
31 import android.content.Intent;
32 import android.content.IntentFilter;
33 import android.content.pm.UserInfo;
34 import android.media.AudioManager;
35 import android.media.SoundPool;
36 import android.os.Bundle;
37 import android.os.DeadObjectException;
38 import android.os.Handler;
39 import android.os.Looper;
40 import android.os.Message;
41 import android.os.PowerManager;
42 import android.os.RemoteException;
43 import android.os.SystemClock;
44 import android.os.SystemProperties;
45 import android.os.UserHandle;
46 import android.os.UserManager;
47 import android.os.storage.StorageManager;
48 import android.provider.Settings;
49 import android.telephony.SubscriptionManager;
50 import android.telephony.TelephonyManager;
51 import android.util.EventLog;
52 import android.util.Log;
53 import android.util.Slog;
54 import android.view.IWindowManager;
55 import android.view.ViewGroup;
56 import android.view.WindowManagerGlobal;
57 import android.view.WindowManagerPolicy;
58 import android.view.animation.Animation;
59 import android.view.animation.AnimationUtils;
60 
61 import com.android.internal.policy.IKeyguardDrawnCallback;
62 import com.android.internal.policy.IKeyguardExitCallback;
63 import com.android.internal.policy.IKeyguardStateCallback;
64 import com.android.internal.telephony.IccCardConstants;
65 import com.android.internal.widget.LockPatternUtils;
66 import com.android.keyguard.KeyguardConstants;
67 import com.android.keyguard.KeyguardDisplayManager;
68 import com.android.keyguard.KeyguardSecurityView;
69 import com.android.keyguard.KeyguardUpdateMonitor;
70 import com.android.keyguard.KeyguardUpdateMonitorCallback;
71 import com.android.keyguard.ViewMediatorCallback;
72 import com.android.systemui.SystemUI;
73 import com.android.systemui.SystemUIFactory;
74 import com.android.systemui.classifier.FalsingManager;
75 import com.android.systemui.statusbar.phone.FingerprintUnlockController;
76 import com.android.systemui.statusbar.phone.PhoneStatusBar;
77 import com.android.systemui.statusbar.phone.ScrimController;
78 import com.android.systemui.statusbar.phone.StatusBarKeyguardViewManager;
79 import com.android.systemui.statusbar.phone.StatusBarWindowManager;
80 
81 import java.io.FileDescriptor;
82 import java.io.PrintWriter;
83 import java.util.ArrayList;
84 import java.util.List;
85 
86 import static android.provider.Settings.System.SCREEN_OFF_TIMEOUT;
87 import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.SOME_AUTH_REQUIRED_AFTER_USER_REQUEST;
88 import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.SOME_AUTH_REQUIRED_AFTER_WRONG_CREDENTIAL;
89 import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW;
90 import static com.android.internal.widget.LockPatternUtils.StrongAuthTracker.STRONG_AUTH_REQUIRED_AFTER_LOCKOUT;
91 
92 /**
93  * Mediates requests related to the keyguard.  This includes queries about the
94  * state of the keyguard, power management events that effect whether the keyguard
95  * should be shown or reset, callbacks to the phone window manager to notify
96  * it of when the keyguard is showing, and events from the keyguard view itself
97  * stating that the keyguard was succesfully unlocked.
98  *
99  * Note that the keyguard view is shown when the screen is off (as appropriate)
100  * so that once the screen comes on, it will be ready immediately.
101  *
102  * Example queries about the keyguard:
103  * - is {movement, key} one that should wake the keygaurd?
104  * - is the keyguard showing?
105  * - are input events restricted due to the state of the keyguard?
106  *
107  * Callbacks to the phone window manager:
108  * - the keyguard is showing
109  *
110  * Example external events that translate to keyguard view changes:
111  * - screen turned off -> reset the keyguard, and show it so it will be ready
112  *   next time the screen turns on
113  * - keyboard is slid open -> if the keyguard is not secure, hide it
114  *
115  * Events from the keyguard view:
116  * - user succesfully unlocked keyguard -> hide keyguard view, and no longer
117  *   restrict input events.
118  *
119  * Note: in addition to normal power managment events that effect the state of
120  * whether the keyguard should be showing, external apps and services may request
121  * that the keyguard be disabled via {@link #setKeyguardEnabled(boolean)}.  When
122  * false, this will override all other conditions for turning on the keyguard.
123  *
124  * Threading and synchronization:
125  * This class is created by the initialization routine of the {@link android.view.WindowManagerPolicy},
126  * and runs on its thread.  The keyguard UI is created from that thread in the
127  * constructor of this class.  The apis may be called from other threads, including the
128  * {@link com.android.server.input.InputManagerService}'s and {@link android.view.WindowManager}'s.
129  * Therefore, methods on this class are synchronized, and any action that is pointed
130  * directly to the keyguard UI is posted to a {@link android.os.Handler} to ensure it is taken on the UI
131  * thread of the keyguard.
132  */
133 public class KeyguardViewMediator extends SystemUI {
134     private static final int KEYGUARD_DISPLAY_TIMEOUT_DELAY_DEFAULT = 30000;
135     private static final long KEYGUARD_DONE_PENDING_TIMEOUT_MS = 3000;
136 
137     private static final boolean DEBUG = KeyguardConstants.DEBUG;
138     private static final boolean DEBUG_SIM_STATES = KeyguardConstants.DEBUG_SIM_STATES;
139     private final static boolean DBG_WAKE = false;
140 
141     private final static String TAG = "KeyguardViewMediator";
142 
143     private static final String DELAYED_KEYGUARD_ACTION =
144         "com.android.internal.policy.impl.PhoneWindowManager.DELAYED_KEYGUARD";
145     private static final String DELAYED_LOCK_PROFILE_ACTION =
146             "com.android.internal.policy.impl.PhoneWindowManager.DELAYED_LOCK";
147 
148     // used for handler messages
149     private static final int SHOW = 2;
150     private static final int HIDE = 3;
151     private static final int RESET = 4;
152     private static final int VERIFY_UNLOCK = 5;
153     private static final int NOTIFY_FINISHED_GOING_TO_SLEEP = 6;
154     private static final int NOTIFY_SCREEN_TURNING_ON = 7;
155     private static final int KEYGUARD_DONE = 9;
156     private static final int KEYGUARD_DONE_DRAWING = 10;
157     private static final int KEYGUARD_DONE_AUTHENTICATING = 11;
158     private static final int SET_OCCLUDED = 12;
159     private static final int KEYGUARD_TIMEOUT = 13;
160     private static final int DISMISS = 17;
161     private static final int START_KEYGUARD_EXIT_ANIM = 18;
162     private static final int ON_ACTIVITY_DRAWN = 19;
163     private static final int KEYGUARD_DONE_PENDING_TIMEOUT = 20;
164     private static final int NOTIFY_STARTED_WAKING_UP = 21;
165     private static final int NOTIFY_SCREEN_TURNED_ON = 22;
166     private static final int NOTIFY_SCREEN_TURNED_OFF = 23;
167     private static final int NOTIFY_STARTED_GOING_TO_SLEEP = 24;
168 
169     /**
170      * The default amount of time we stay awake (used for all key input)
171      */
172     public static final int AWAKE_INTERVAL_DEFAULT_MS = 10000;
173 
174     /**
175      * How long to wait after the screen turns off due to timeout before
176      * turning on the keyguard (i.e, the user has this much time to turn
177      * the screen back on without having to face the keyguard).
178      */
179     private static final int KEYGUARD_LOCK_AFTER_DELAY_DEFAULT = 5000;
180 
181     /**
182      * How long we'll wait for the {@link ViewMediatorCallback#keyguardDoneDrawing()}
183      * callback before unblocking a call to {@link #setKeyguardEnabled(boolean)}
184      * that is reenabling the keyguard.
185      */
186     private static final int KEYGUARD_DONE_DRAWING_TIMEOUT_MS = 2000;
187 
188     /**
189      * Secure setting whether analytics are collected on the keyguard.
190      */
191     private static final String KEYGUARD_ANALYTICS_SETTING = "keyguard_analytics";
192 
193     /** The stream type that the lock sounds are tied to. */
194     private int mUiSoundsStreamType;
195 
196     private AlarmManager mAlarmManager;
197     private AudioManager mAudioManager;
198     private StatusBarManager mStatusBarManager;
199     private boolean mSwitchingUser;
200 
201     private boolean mSystemReady;
202     private boolean mBootCompleted;
203     private boolean mBootSendUserPresent;
204 
205     /** High level access to the power manager for WakeLocks */
206     private PowerManager mPM;
207 
208     /** High level access to the window manager for dismissing keyguard animation */
209     private IWindowManager mWM;
210 
211 
212     /** TrustManager for letting it know when we change visibility */
213     private TrustManager mTrustManager;
214 
215     /** SearchManager for determining whether or not search assistant is available */
216     private SearchManager mSearchManager;
217 
218     /**
219      * Used to keep the device awake while to ensure the keyguard finishes opening before
220      * we sleep.
221      */
222     private PowerManager.WakeLock mShowKeyguardWakeLock;
223 
224     private StatusBarKeyguardViewManager mStatusBarKeyguardViewManager;
225 
226     // these are protected by synchronized (this)
227 
228     /**
229      * External apps (like the phone app) can tell us to disable the keygaurd.
230      */
231     private boolean mExternallyEnabled = true;
232 
233     /**
234      * Remember if an external call to {@link #setKeyguardEnabled} with value
235      * false caused us to hide the keyguard, so that we need to reshow it once
236      * the keygaurd is reenabled with another call with value true.
237      */
238     private boolean mNeedToReshowWhenReenabled = false;
239 
240     // cached value of whether we are showing (need to know this to quickly
241     // answer whether the input should be restricted)
242     private boolean mShowing;
243 
244     /** Cached value of #isInputRestricted */
245     private boolean mInputRestricted;
246 
247     // true if the keyguard is hidden by another window
248     private boolean mOccluded = false;
249 
250     /**
251      * Helps remember whether the screen has turned on since the last time
252      * it turned off due to timeout. see {@link #onScreenTurnedOff(int)}
253      */
254     private int mDelayedShowingSequence;
255 
256     /**
257      * Simiar to {@link #mDelayedProfileShowingSequence}, but it is for profile case.
258      */
259     private int mDelayedProfileShowingSequence;
260 
261     /**
262      * If the user has disabled the keyguard, then requests to exit, this is
263      * how we'll ultimately let them know whether it was successful.  We use this
264      * var being non-null as an indicator that there is an in progress request.
265      */
266     private IKeyguardExitCallback mExitSecureCallback;
267 
268     // the properties of the keyguard
269 
270     private KeyguardUpdateMonitor mUpdateMonitor;
271 
272     private boolean mDeviceInteractive;
273     private boolean mGoingToSleep;
274 
275     // last known state of the cellular connection
276     private String mPhoneState = TelephonyManager.EXTRA_STATE_IDLE;
277 
278     /**
279      * Whether a hide is pending an we are just waiting for #startKeyguardExitAnimation to be
280      * called.
281      * */
282     private boolean mHiding;
283 
284     /**
285      * we send this intent when the keyguard is dismissed.
286      */
287     private static final Intent USER_PRESENT_INTENT = new Intent(Intent.ACTION_USER_PRESENT)
288             .addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING
289                     | Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);
290 
291     /**
292      * {@link #setKeyguardEnabled} waits on this condition when it reenables
293      * the keyguard.
294      */
295     private boolean mWaitingUntilKeyguardVisible = false;
296     private LockPatternUtils mLockPatternUtils;
297     private boolean mKeyguardDonePending = false;
298     private boolean mHideAnimationRun = false;
299 
300     private SoundPool mLockSounds;
301     private int mLockSoundId;
302     private int mUnlockSoundId;
303     private int mTrustedSoundId;
304     private int mLockSoundStreamId;
305 
306     /**
307      * The animation used for hiding keyguard. This is used to fetch the animation timings if
308      * WindowManager is not providing us with them.
309      */
310     private Animation mHideAnimation;
311 
312     /**
313      * The volume applied to the lock/unlock sounds.
314      */
315     private float mLockSoundVolume;
316 
317     /**
318      * For managing external displays
319      */
320     private KeyguardDisplayManager mKeyguardDisplayManager;
321 
322     private final ArrayList<IKeyguardStateCallback> mKeyguardStateCallbacks = new ArrayList<>();
323 
324     /**
325      * When starting going to sleep, we figured out that we need to reset Keyguard state and this
326      * should be committed when finished going to sleep.
327      */
328     private boolean mPendingReset;
329 
330     /**
331      * When starting going to sleep, we figured out that we need to lock Keyguard and this should be
332      * committed when finished going to sleep.
333      */
334     private boolean mPendingLock;
335 
336     private boolean mLockLater;
337 
338     private boolean mWakeAndUnlocking;
339     private IKeyguardDrawnCallback mDrawnCallback;
340 
341     private boolean mIsPerUserLock;
342 
343     KeyguardUpdateMonitorCallback mUpdateCallback = new KeyguardUpdateMonitorCallback() {
344 
345         @Override
346         public void onUserSwitching(int userId) {
347             // Note that the mLockPatternUtils user has already been updated from setCurrentUser.
348             // We need to force a reset of the views, since lockNow (called by
349             // ActivityManagerService) will not reconstruct the keyguard if it is already showing.
350             synchronized (KeyguardViewMediator.this) {
351                 mSwitchingUser = true;
352                 resetKeyguardDonePendingLocked();
353                 resetStateLocked();
354                 adjustStatusBarLocked();
355             }
356         }
357 
358         @Override
359         public void onUserSwitchComplete(int userId) {
360             mSwitchingUser = false;
361             if (userId != UserHandle.USER_SYSTEM) {
362                 UserInfo info = UserManager.get(mContext).getUserInfo(userId);
363                 if (info != null && info.isGuest()) {
364                     // If we just switched to a guest, try to dismiss keyguard.
365                     dismiss();
366                 }
367             }
368         }
369 
370         @Override
371         public void onUserInfoChanged(int userId) {
372         }
373 
374         @Override
375         public void onPhoneStateChanged(int phoneState) {
376             synchronized (KeyguardViewMediator.this) {
377                 if (TelephonyManager.CALL_STATE_IDLE == phoneState  // call ending
378                         && !mDeviceInteractive                           // screen off
379                         && mExternallyEnabled) {                // not disabled by any app
380 
381                     // note: this is a way to gracefully reenable the keyguard when the call
382                     // ends and the screen is off without always reenabling the keyguard
383                     // each time the screen turns off while in call (and having an occasional ugly
384                     // flicker while turning back on the screen and disabling the keyguard again).
385                     if (DEBUG) Log.d(TAG, "screen is off and call ended, let's make sure the "
386                             + "keyguard is showing");
387                     doKeyguardLocked(null);
388                 }
389             }
390         }
391 
392         @Override
393         public void onClockVisibilityChanged() {
394             adjustStatusBarLocked();
395         }
396 
397         @Override
398         public void onDeviceProvisioned() {
399             sendUserPresentBroadcast();
400             synchronized (KeyguardViewMediator.this) {
401                 // If system user is provisioned, we might want to lock now to avoid showing launcher
402                 if (UserManager.isSplitSystemUser()
403                         && KeyguardUpdateMonitor.getCurrentUser() == UserHandle.USER_SYSTEM) {
404                     doKeyguardLocked(null);
405                 }
406             }
407         }
408 
409         @Override
410         public void onSimStateChanged(int subId, int slotId, IccCardConstants.State simState) {
411 
412             if (DEBUG_SIM_STATES) {
413                 Log.d(TAG, "onSimStateChanged(subId=" + subId + ", slotId=" + slotId
414                         + ",state=" + simState + ")");
415             }
416 
417             int size = mKeyguardStateCallbacks.size();
418             boolean simPinSecure = mUpdateMonitor.isSimPinSecure();
419             for (int i = size - 1; i >= 0; i--) {
420                 try {
421                     mKeyguardStateCallbacks.get(i).onSimSecureStateChanged(simPinSecure);
422                 } catch (RemoteException e) {
423                     Slog.w(TAG, "Failed to call onSimSecureStateChanged", e);
424                     if (e instanceof DeadObjectException) {
425                         mKeyguardStateCallbacks.remove(i);
426                     }
427                 }
428             }
429 
430             switch (simState) {
431                 case NOT_READY:
432                 case ABSENT:
433                     // only force lock screen in case of missing sim if user hasn't
434                     // gone through setup wizard
435                     synchronized (this) {
436                         if (shouldWaitForProvisioning()) {
437                             if (!mShowing) {
438                                 if (DEBUG_SIM_STATES) Log.d(TAG, "ICC_ABSENT isn't showing,"
439                                         + " we need to show the keyguard since the "
440                                         + "device isn't provisioned yet.");
441                                 doKeyguardLocked(null);
442                             } else {
443                                 resetStateLocked();
444                             }
445                         }
446                     }
447                     break;
448                 case PIN_REQUIRED:
449                 case PUK_REQUIRED:
450                     synchronized (this) {
451                         if (!mShowing) {
452                             if (DEBUG_SIM_STATES) Log.d(TAG,
453                                     "INTENT_VALUE_ICC_LOCKED and keygaurd isn't "
454                                     + "showing; need to show keyguard so user can enter sim pin");
455                             doKeyguardLocked(null);
456                         } else {
457                             resetStateLocked();
458                         }
459                     }
460                     break;
461                 case PERM_DISABLED:
462                     synchronized (this) {
463                         if (!mShowing) {
464                             if (DEBUG_SIM_STATES) Log.d(TAG, "PERM_DISABLED and "
465                                   + "keygaurd isn't showing.");
466                             doKeyguardLocked(null);
467                         } else {
468                             if (DEBUG_SIM_STATES) Log.d(TAG, "PERM_DISABLED, resetStateLocked to"
469                                   + "show permanently disabled message in lockscreen.");
470                             resetStateLocked();
471                         }
472                     }
473                     break;
474                 case READY:
475                     synchronized (this) {
476                         if (mShowing) {
477                             resetStateLocked();
478                         }
479                     }
480                     break;
481                 default:
482                     if (DEBUG_SIM_STATES) Log.v(TAG, "Ignoring state: " + simState);
483                     break;
484             }
485         }
486 
487         @Override
488         public void onFingerprintAuthFailed() {
489             final int currentUser = KeyguardUpdateMonitor.getCurrentUser();
490             if (mLockPatternUtils.isSecure(currentUser)) {
491                 mLockPatternUtils.getDevicePolicyManager().reportFailedFingerprintAttempt(
492                         currentUser);
493             }
494         }
495 
496         @Override
497         public void onFingerprintAuthenticated(int userId) {
498             if (mLockPatternUtils.isSecure(userId)) {
499                 mLockPatternUtils.getDevicePolicyManager().reportSuccessfulFingerprintAttempt(
500                         userId);
501             }
502         }
503     };
504 
505     ViewMediatorCallback mViewMediatorCallback = new ViewMediatorCallback() {
506 
507         @Override
508         public void userActivity() {
509             KeyguardViewMediator.this.userActivity();
510         }
511 
512         @Override
513         public void keyguardDone(boolean strongAuth) {
514             if (!mKeyguardDonePending) {
515                 KeyguardViewMediator.this.keyguardDone(true /* authenticated */);
516             }
517             if (strongAuth) {
518                 mUpdateMonitor.reportSuccessfulStrongAuthUnlockAttempt();
519             }
520         }
521 
522         @Override
523         public void keyguardDoneDrawing() {
524             mHandler.sendEmptyMessage(KEYGUARD_DONE_DRAWING);
525         }
526 
527         @Override
528         public void setNeedsInput(boolean needsInput) {
529             mStatusBarKeyguardViewManager.setNeedsInput(needsInput);
530         }
531 
532         @Override
533         public void keyguardDonePending(boolean strongAuth) {
534             mKeyguardDonePending = true;
535             mHideAnimationRun = true;
536             mStatusBarKeyguardViewManager.startPreHideAnimation(null /* finishRunnable */);
537             mHandler.sendEmptyMessageDelayed(KEYGUARD_DONE_PENDING_TIMEOUT,
538                     KEYGUARD_DONE_PENDING_TIMEOUT_MS);
539             if (strongAuth) {
540                 mUpdateMonitor.reportSuccessfulStrongAuthUnlockAttempt();
541             }
542         }
543 
544         @Override
545         public void keyguardGone() {
546             mKeyguardDisplayManager.hide();
547         }
548 
549         @Override
550         public void readyForKeyguardDone() {
551             if (mKeyguardDonePending) {
552                 // Somebody has called keyguardDonePending before, which means that we are
553                 // authenticated
554                 KeyguardViewMediator.this.keyguardDone(true /* authenticated */);
555             }
556         }
557 
558         @Override
559         public void resetKeyguard() {
560             resetStateLocked();
561         }
562 
563         @Override
564         public void playTrustedSound() {
565             KeyguardViewMediator.this.playTrustedSound();
566         }
567 
568         @Override
569         public boolean isInputRestricted() {
570             return KeyguardViewMediator.this.isInputRestricted();
571         }
572 
573         @Override
574         public boolean isScreenOn() {
575             return mDeviceInteractive;
576         }
577 
578         @Override
579         public int getBouncerPromptReason() {
580             int currentUser = ActivityManager.getCurrentUser();
581             boolean trust = mTrustManager.isTrustUsuallyManaged(currentUser);
582             boolean fingerprint = mUpdateMonitor.isUnlockWithFingerprintPossible(currentUser);
583             boolean any = trust || fingerprint;
584             KeyguardUpdateMonitor.StrongAuthTracker strongAuthTracker =
585                     mUpdateMonitor.getStrongAuthTracker();
586             int strongAuth = strongAuthTracker.getStrongAuthForUser(currentUser);
587 
588             if (any && !strongAuthTracker.hasUserAuthenticatedSinceBoot()) {
589                 return KeyguardSecurityView.PROMPT_REASON_RESTART;
590             } else if (fingerprint && mUpdateMonitor.hasFingerprintUnlockTimedOut(currentUser)) {
591                 return KeyguardSecurityView.PROMPT_REASON_TIMEOUT;
592             } else if (any && (strongAuth & STRONG_AUTH_REQUIRED_AFTER_DPM_LOCK_NOW) != 0) {
593                 return KeyguardSecurityView.PROMPT_REASON_DEVICE_ADMIN;
594             } else if (trust && (strongAuth & SOME_AUTH_REQUIRED_AFTER_USER_REQUEST) != 0) {
595                 return KeyguardSecurityView.PROMPT_REASON_USER_REQUEST;
596             } else if (any && (strongAuth & STRONG_AUTH_REQUIRED_AFTER_LOCKOUT) != 0) {
597                 return KeyguardSecurityView.PROMPT_REASON_AFTER_LOCKOUT;
598             } else if (trust && (strongAuth & SOME_AUTH_REQUIRED_AFTER_WRONG_CREDENTIAL) != 0) {
599                 return KeyguardSecurityView.PROMPT_REASON_WRONG_CREDENTIAL;
600             }
601 
602 
603             return KeyguardSecurityView.PROMPT_REASON_NONE;
604         }
605     };
606 
userActivity()607     public void userActivity() {
608         mPM.userActivity(SystemClock.uptimeMillis(), false);
609     }
610 
setupLocked()611     private void setupLocked() {
612         mPM = (PowerManager) mContext.getSystemService(Context.POWER_SERVICE);
613         mWM = WindowManagerGlobal.getWindowManagerService();
614         mTrustManager = (TrustManager) mContext.getSystemService(Context.TRUST_SERVICE);
615 
616         mShowKeyguardWakeLock = mPM.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "show keyguard");
617         mShowKeyguardWakeLock.setReferenceCounted(false);
618 
619         mContext.registerReceiver(mBroadcastReceiver, new IntentFilter(DELAYED_KEYGUARD_ACTION));
620         mContext.registerReceiver(
621                 mBroadcastReceiver, new IntentFilter(DELAYED_LOCK_PROFILE_ACTION));
622 
623         mKeyguardDisplayManager = new KeyguardDisplayManager(mContext);
624 
625         mAlarmManager = (AlarmManager) mContext.getSystemService(Context.ALARM_SERVICE);
626 
627         mUpdateMonitor = KeyguardUpdateMonitor.getInstance(mContext);
628 
629         mLockPatternUtils = new LockPatternUtils(mContext);
630         KeyguardUpdateMonitor.setCurrentUser(ActivityManager.getCurrentUser());
631 
632         // Assume keyguard is showing (unless it's disabled) until we know for sure...
633         setShowingLocked(!shouldWaitForProvisioning() && !mLockPatternUtils.isLockScreenDisabled(
634                 KeyguardUpdateMonitor.getCurrentUser()));
635         updateInputRestrictedLocked();
636         mTrustManager.reportKeyguardShowingChanged();
637 
638         mStatusBarKeyguardViewManager =
639                 SystemUIFactory.getInstance().createStatusBarKeyguardViewManager(mContext,
640                         mViewMediatorCallback, mLockPatternUtils);
641         final ContentResolver cr = mContext.getContentResolver();
642 
643         mDeviceInteractive = mPM.isInteractive();
644 
645         mLockSounds = new SoundPool(1, AudioManager.STREAM_SYSTEM, 0);
646         String soundPath = Settings.Global.getString(cr, Settings.Global.LOCK_SOUND);
647         if (soundPath != null) {
648             mLockSoundId = mLockSounds.load(soundPath, 1);
649         }
650         if (soundPath == null || mLockSoundId == 0) {
651             Log.w(TAG, "failed to load lock sound from " + soundPath);
652         }
653         soundPath = Settings.Global.getString(cr, Settings.Global.UNLOCK_SOUND);
654         if (soundPath != null) {
655             mUnlockSoundId = mLockSounds.load(soundPath, 1);
656         }
657         if (soundPath == null || mUnlockSoundId == 0) {
658             Log.w(TAG, "failed to load unlock sound from " + soundPath);
659         }
660         soundPath = Settings.Global.getString(cr, Settings.Global.TRUSTED_SOUND);
661         if (soundPath != null) {
662             mTrustedSoundId = mLockSounds.load(soundPath, 1);
663         }
664         if (soundPath == null || mTrustedSoundId == 0) {
665             Log.w(TAG, "failed to load trusted sound from " + soundPath);
666         }
667 
668         int lockSoundDefaultAttenuation = mContext.getResources().getInteger(
669                 com.android.internal.R.integer.config_lockSoundVolumeDb);
670         mLockSoundVolume = (float)Math.pow(10, (float)lockSoundDefaultAttenuation/20);
671 
672         mHideAnimation = AnimationUtils.loadAnimation(mContext,
673                 com.android.internal.R.anim.lock_screen_behind_enter);
674     }
675 
676     @Override
start()677     public void start() {
678         synchronized (this) {
679             setupLocked();
680         }
681         putComponent(KeyguardViewMediator.class, this);
682     }
683 
684     /**
685      * Let us know that the system is ready after startup.
686      */
onSystemReady()687     public void onSystemReady() {
688         mSearchManager = (SearchManager) mContext.getSystemService(Context.SEARCH_SERVICE);
689         synchronized (this) {
690             if (DEBUG) Log.d(TAG, "onSystemReady");
691             mSystemReady = true;
692             doKeyguardLocked(null);
693             mUpdateMonitor.registerCallback(mUpdateCallback);
694         }
695         mIsPerUserLock = StorageManager.isFileEncryptedNativeOrEmulated();
696         // Most services aren't available until the system reaches the ready state, so we
697         // send it here when the device first boots.
698         maybeSendUserPresentBroadcast();
699     }
700 
701     /**
702      * Called to let us know the screen was turned off.
703      * @param why either {@link android.view.WindowManagerPolicy#OFF_BECAUSE_OF_USER} or
704      *   {@link android.view.WindowManagerPolicy#OFF_BECAUSE_OF_TIMEOUT}.
705      */
onStartedGoingToSleep(int why)706     public void onStartedGoingToSleep(int why) {
707         if (DEBUG) Log.d(TAG, "onStartedGoingToSleep(" + why + ")");
708         synchronized (this) {
709             mDeviceInteractive = false;
710             mGoingToSleep = true;
711 
712             // Lock immediately based on setting if secure (user has a pin/pattern/password).
713             // This also "locks" the device when not secure to provide easy access to the
714             // camera while preventing unwanted input.
715             int currentUser = KeyguardUpdateMonitor.getCurrentUser();
716             final boolean lockImmediately =
717                     mLockPatternUtils.getPowerButtonInstantlyLocks(currentUser)
718                             || !mLockPatternUtils.isSecure(currentUser);
719             long timeout = getLockTimeout(KeyguardUpdateMonitor.getCurrentUser());
720             mLockLater = false;
721             if (mExitSecureCallback != null) {
722                 if (DEBUG) Log.d(TAG, "pending exit secure callback cancelled");
723                 try {
724                     mExitSecureCallback.onKeyguardExitResult(false);
725                 } catch (RemoteException e) {
726                     Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e);
727                 }
728                 mExitSecureCallback = null;
729                 if (!mExternallyEnabled) {
730                     hideLocked();
731                 }
732             } else if (mShowing) {
733                 mPendingReset = true;
734             } else if ((why == WindowManagerPolicy.OFF_BECAUSE_OF_TIMEOUT && timeout > 0)
735                     || (why == WindowManagerPolicy.OFF_BECAUSE_OF_USER && !lockImmediately)) {
736                 doKeyguardLaterLocked(timeout);
737                 mLockLater = true;
738             } else if (!mLockPatternUtils.isLockScreenDisabled(currentUser)) {
739                 mPendingLock = true;
740             }
741 
742             if (mPendingLock) {
743                 playSounds(true);
744             }
745         }
746         KeyguardUpdateMonitor.getInstance(mContext).dispatchStartedGoingToSleep(why);
747         notifyStartedGoingToSleep();
748     }
749 
onFinishedGoingToSleep(int why, boolean cameraGestureTriggered)750     public void onFinishedGoingToSleep(int why, boolean cameraGestureTriggered) {
751         if (DEBUG) Log.d(TAG, "onFinishedGoingToSleep(" + why + ")");
752         synchronized (this) {
753             mDeviceInteractive = false;
754             mGoingToSleep = false;
755 
756             resetKeyguardDonePendingLocked();
757             mHideAnimationRun = false;
758 
759             notifyFinishedGoingToSleep();
760 
761             if (cameraGestureTriggered) {
762                 Log.i(TAG, "Camera gesture was triggered, preventing Keyguard locking.");
763 
764                 // Just to make sure, make sure the device is awake.
765                 mContext.getSystemService(PowerManager.class).wakeUp(SystemClock.uptimeMillis(),
766                         "com.android.systemui:CAMERA_GESTURE_PREVENT_LOCK");
767                 mPendingLock = false;
768                 mPendingReset = false;
769             }
770 
771             if (mPendingReset) {
772                 resetStateLocked();
773                 mPendingReset = false;
774             }
775 
776             if (mPendingLock) {
777                 doKeyguardLocked(null);
778                 mPendingLock = false;
779             }
780 
781             // We do not have timeout and power button instant lock setting for profile lock.
782             // So we use the personal setting if there is any. But if there is no device
783             // we need to make sure we lock it immediately when the screen is off.
784             if (!mLockLater && !cameraGestureTriggered) {
785                 doKeyguardForChildProfilesLocked();
786             }
787 
788         }
789         KeyguardUpdateMonitor.getInstance(mContext).dispatchFinishedGoingToSleep(why);
790     }
791 
getLockTimeout(int userId)792     private long getLockTimeout(int userId) {
793         // if the screen turned off because of timeout or the user hit the power button
794         // and we don't need to lock immediately, set an alarm
795         // to enable it a little bit later (i.e, give the user a chance
796         // to turn the screen back on within a certain window without
797         // having to unlock the screen)
798         final ContentResolver cr = mContext.getContentResolver();
799 
800         // From SecuritySettings
801         final long lockAfterTimeout = Settings.Secure.getInt(cr,
802                 Settings.Secure.LOCK_SCREEN_LOCK_AFTER_TIMEOUT,
803                 KEYGUARD_LOCK_AFTER_DELAY_DEFAULT);
804 
805         // From DevicePolicyAdmin
806         final long policyTimeout = mLockPatternUtils.getDevicePolicyManager()
807                 .getMaximumTimeToLockForUserAndProfiles(userId);
808 
809         long timeout;
810 
811         if (policyTimeout <= 0) {
812             timeout = lockAfterTimeout;
813         } else {
814             // From DisplaySettings
815             long displayTimeout = Settings.System.getInt(cr, SCREEN_OFF_TIMEOUT,
816                     KEYGUARD_DISPLAY_TIMEOUT_DELAY_DEFAULT);
817 
818             // policy in effect. Make sure we don't go beyond policy limit.
819             displayTimeout = Math.max(displayTimeout, 0); // ignore negative values
820             timeout = Math.min(policyTimeout - displayTimeout, lockAfterTimeout);
821             timeout = Math.max(timeout, 0);
822         }
823         return timeout;
824     }
825 
doKeyguardLaterLocked()826     private void doKeyguardLaterLocked() {
827         long timeout = getLockTimeout(KeyguardUpdateMonitor.getCurrentUser());
828         if (timeout == 0) {
829             doKeyguardLocked(null);
830         } else {
831             doKeyguardLaterLocked(timeout);
832         }
833     }
834 
doKeyguardLaterLocked(long timeout)835     private void doKeyguardLaterLocked(long timeout) {
836         // Lock in the future
837         long when = SystemClock.elapsedRealtime() + timeout;
838         Intent intent = new Intent(DELAYED_KEYGUARD_ACTION);
839         intent.putExtra("seq", mDelayedShowingSequence);
840         intent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
841         PendingIntent sender = PendingIntent.getBroadcast(mContext,
842                 0, intent, PendingIntent.FLAG_CANCEL_CURRENT);
843         mAlarmManager.setExactAndAllowWhileIdle(AlarmManager.ELAPSED_REALTIME_WAKEUP, when, sender);
844         if (DEBUG) Log.d(TAG, "setting alarm to turn off keyguard, seq = "
845                          + mDelayedShowingSequence);
846         doKeyguardLaterForChildProfilesLocked();
847     }
848 
doKeyguardLaterForChildProfilesLocked()849     private void doKeyguardLaterForChildProfilesLocked() {
850         UserManager um = UserManager.get(mContext);
851         for (int profileId : um.getEnabledProfileIds(UserHandle.myUserId())) {
852             if (mLockPatternUtils.isSeparateProfileChallengeEnabled(profileId)) {
853                 long userTimeout = getLockTimeout(profileId);
854                 if (userTimeout == 0) {
855                     doKeyguardForChildProfilesLocked();
856                 } else {
857                     long userWhen = SystemClock.elapsedRealtime() + userTimeout;
858                     Intent lockIntent = new Intent(DELAYED_LOCK_PROFILE_ACTION);
859                     lockIntent.putExtra("seq", mDelayedProfileShowingSequence);
860                     lockIntent.putExtra(Intent.EXTRA_USER_ID, profileId);
861                     lockIntent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND);
862                     PendingIntent lockSender = PendingIntent.getBroadcast(
863                             mContext, 0, lockIntent, PendingIntent.FLAG_CANCEL_CURRENT);
864                     mAlarmManager.setExactAndAllowWhileIdle(AlarmManager.ELAPSED_REALTIME_WAKEUP,
865                             userWhen, lockSender);
866                 }
867             }
868         }
869     }
870 
doKeyguardForChildProfilesLocked()871     private void doKeyguardForChildProfilesLocked() {
872         UserManager um = UserManager.get(mContext);
873         for (int profileId : um.getEnabledProfileIds(UserHandle.myUserId())) {
874             if (mLockPatternUtils.isSeparateProfileChallengeEnabled(profileId)) {
875                 lockProfile(profileId);
876             }
877         }
878     }
879 
cancelDoKeyguardLaterLocked()880     private void cancelDoKeyguardLaterLocked() {
881         mDelayedShowingSequence++;
882     }
883 
cancelDoKeyguardForChildProfilesLocked()884     private void cancelDoKeyguardForChildProfilesLocked() {
885         mDelayedProfileShowingSequence++;
886     }
887 
888     /**
889      * Let's us know when the device is waking up.
890      */
onStartedWakingUp()891     public void onStartedWakingUp() {
892 
893         // TODO: Rename all screen off/on references to interactive/sleeping
894         synchronized (this) {
895             mDeviceInteractive = true;
896             cancelDoKeyguardLaterLocked();
897             cancelDoKeyguardForChildProfilesLocked();
898             if (DEBUG) Log.d(TAG, "onStartedWakingUp, seq = " + mDelayedShowingSequence);
899             notifyStartedWakingUp();
900         }
901         KeyguardUpdateMonitor.getInstance(mContext).dispatchStartedWakingUp();
902         maybeSendUserPresentBroadcast();
903     }
904 
onScreenTurningOn(IKeyguardDrawnCallback callback)905     public void onScreenTurningOn(IKeyguardDrawnCallback callback) {
906         notifyScreenOn(callback);
907     }
908 
onScreenTurnedOn()909     public void onScreenTurnedOn() {
910         notifyScreenTurnedOn();
911         mUpdateMonitor.dispatchScreenTurnedOn();
912     }
913 
onScreenTurnedOff()914     public void onScreenTurnedOff() {
915         notifyScreenTurnedOff();
916         mUpdateMonitor.dispatchScreenTurnedOff();
917     }
918 
maybeSendUserPresentBroadcast()919     private void maybeSendUserPresentBroadcast() {
920         if (mSystemReady && mLockPatternUtils.isLockScreenDisabled(
921                 KeyguardUpdateMonitor.getCurrentUser())) {
922             // Lock screen is disabled because the user has set the preference to "None".
923             // In this case, send out ACTION_USER_PRESENT here instead of in
924             // handleKeyguardDone()
925             sendUserPresentBroadcast();
926         } else if (mSystemReady && shouldWaitForProvisioning()) {
927             // Skipping the lockscreen because we're not yet provisioned, but we still need to
928             // notify the StrongAuthTracker that it's now safe to run trust agents, in case the
929             // user sets a credential later.
930             getLockPatternUtils().userPresent(KeyguardUpdateMonitor.getCurrentUser());
931         }
932     }
933 
934     /**
935      * A dream started.  We should lock after the usual screen-off lock timeout but only
936      * if there is a secure lock pattern.
937      */
onDreamingStarted()938     public void onDreamingStarted() {
939         synchronized (this) {
940             if (mDeviceInteractive
941                     && mLockPatternUtils.isSecure(KeyguardUpdateMonitor.getCurrentUser())) {
942                 doKeyguardLaterLocked();
943             }
944         }
945     }
946 
947     /**
948      * A dream stopped.
949      */
onDreamingStopped()950     public void onDreamingStopped() {
951         synchronized (this) {
952             if (mDeviceInteractive) {
953                 cancelDoKeyguardLaterLocked();
954             }
955         }
956     }
957 
958     /**
959      * Same semantics as {@link android.view.WindowManagerPolicy#enableKeyguard}; provide
960      * a way for external stuff to override normal keyguard behavior.  For instance
961      * the phone app disables the keyguard when it receives incoming calls.
962      */
setKeyguardEnabled(boolean enabled)963     public void setKeyguardEnabled(boolean enabled) {
964         synchronized (this) {
965             if (DEBUG) Log.d(TAG, "setKeyguardEnabled(" + enabled + ")");
966 
967             mExternallyEnabled = enabled;
968 
969             if (!enabled && mShowing) {
970                 if (mExitSecureCallback != null) {
971                     if (DEBUG) Log.d(TAG, "in process of verifyUnlock request, ignoring");
972                     // we're in the process of handling a request to verify the user
973                     // can get past the keyguard. ignore extraneous requests to disable / reenable
974                     return;
975                 }
976 
977                 // hiding keyguard that is showing, remember to reshow later
978                 if (DEBUG) Log.d(TAG, "remembering to reshow, hiding keyguard, "
979                         + "disabling status bar expansion");
980                 mNeedToReshowWhenReenabled = true;
981                 updateInputRestrictedLocked();
982                 hideLocked();
983             } else if (enabled && mNeedToReshowWhenReenabled) {
984                 // reenabled after previously hidden, reshow
985                 if (DEBUG) Log.d(TAG, "previously hidden, reshowing, reenabling "
986                         + "status bar expansion");
987                 mNeedToReshowWhenReenabled = false;
988                 updateInputRestrictedLocked();
989 
990                 if (mExitSecureCallback != null) {
991                     if (DEBUG) Log.d(TAG, "onKeyguardExitResult(false), resetting");
992                     try {
993                         mExitSecureCallback.onKeyguardExitResult(false);
994                     } catch (RemoteException e) {
995                         Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e);
996                     }
997                     mExitSecureCallback = null;
998                     resetStateLocked();
999                 } else {
1000                     showLocked(null);
1001 
1002                     // block until we know the keygaurd is done drawing (and post a message
1003                     // to unblock us after a timeout so we don't risk blocking too long
1004                     // and causing an ANR).
1005                     mWaitingUntilKeyguardVisible = true;
1006                     mHandler.sendEmptyMessageDelayed(KEYGUARD_DONE_DRAWING, KEYGUARD_DONE_DRAWING_TIMEOUT_MS);
1007                     if (DEBUG) Log.d(TAG, "waiting until mWaitingUntilKeyguardVisible is false");
1008                     while (mWaitingUntilKeyguardVisible) {
1009                         try {
1010                             wait();
1011                         } catch (InterruptedException e) {
1012                             Thread.currentThread().interrupt();
1013                         }
1014                     }
1015                     if (DEBUG) Log.d(TAG, "done waiting for mWaitingUntilKeyguardVisible");
1016                 }
1017             }
1018         }
1019     }
1020 
1021     /**
1022      * @see android.app.KeyguardManager#exitKeyguardSecurely
1023      */
verifyUnlock(IKeyguardExitCallback callback)1024     public void verifyUnlock(IKeyguardExitCallback callback) {
1025         synchronized (this) {
1026             if (DEBUG) Log.d(TAG, "verifyUnlock");
1027             if (shouldWaitForProvisioning()) {
1028                 // don't allow this api when the device isn't provisioned
1029                 if (DEBUG) Log.d(TAG, "ignoring because device isn't provisioned");
1030                 try {
1031                     callback.onKeyguardExitResult(false);
1032                 } catch (RemoteException e) {
1033                     Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e);
1034                 }
1035             } else if (mExternallyEnabled) {
1036                 // this only applies when the user has externally disabled the
1037                 // keyguard.  this is unexpected and means the user is not
1038                 // using the api properly.
1039                 Log.w(TAG, "verifyUnlock called when not externally disabled");
1040                 try {
1041                     callback.onKeyguardExitResult(false);
1042                 } catch (RemoteException e) {
1043                     Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e);
1044                 }
1045             } else if (mExitSecureCallback != null) {
1046                 // already in progress with someone else
1047                 try {
1048                     callback.onKeyguardExitResult(false);
1049                 } catch (RemoteException e) {
1050                     Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e);
1051                 }
1052             } else if (!isSecure()) {
1053 
1054                 // Keyguard is not secure, no need to do anything, and we don't need to reshow
1055                 // the Keyguard after the client releases the Keyguard lock.
1056                 mExternallyEnabled = true;
1057                 mNeedToReshowWhenReenabled = false;
1058                 updateInputRestricted();
1059                 try {
1060                     callback.onKeyguardExitResult(true);
1061                 } catch (RemoteException e) {
1062                     Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e);
1063                 }
1064             } else {
1065 
1066                 // Since we prevent apps from hiding the Keyguard if we are secure, this should be
1067                 // a no-op as well.
1068                 try {
1069                     callback.onKeyguardExitResult(false);
1070                 } catch (RemoteException e) {
1071                     Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e);
1072                 }
1073             }
1074         }
1075     }
1076 
1077     /**
1078      * Is the keyguard currently showing and not being force hidden?
1079      */
isShowingAndNotOccluded()1080     public boolean isShowingAndNotOccluded() {
1081         return mShowing && !mOccluded;
1082     }
1083 
1084     /**
1085      * Notify us when the keyguard is occluded by another window
1086      */
setOccluded(boolean isOccluded)1087     public void setOccluded(boolean isOccluded) {
1088         if (DEBUG) Log.d(TAG, "setOccluded " + isOccluded);
1089         mHandler.removeMessages(SET_OCCLUDED);
1090         Message msg = mHandler.obtainMessage(SET_OCCLUDED, (isOccluded ? 1 : 0), 0);
1091         mHandler.sendMessage(msg);
1092     }
1093 
1094     /**
1095      * Handles SET_OCCLUDED message sent by setOccluded()
1096      */
handleSetOccluded(boolean isOccluded)1097     private void handleSetOccluded(boolean isOccluded) {
1098         synchronized (KeyguardViewMediator.this) {
1099             if (mHiding && isOccluded) {
1100                 // We're in the process of going away but WindowManager wants to show a
1101                 // SHOW_WHEN_LOCKED activity instead.
1102                 startKeyguardExitAnimation(0, 0);
1103             }
1104 
1105             if (mOccluded != isOccluded) {
1106                 mOccluded = isOccluded;
1107                 mStatusBarKeyguardViewManager.setOccluded(isOccluded);
1108                 updateActivityLockScreenState();
1109                 adjustStatusBarLocked();
1110             }
1111         }
1112     }
1113 
1114     /**
1115      * Used by PhoneWindowManager to enable the keyguard due to a user activity timeout.
1116      * This must be safe to call from any thread and with any window manager locks held.
1117      */
doKeyguardTimeout(Bundle options)1118     public void doKeyguardTimeout(Bundle options) {
1119         mHandler.removeMessages(KEYGUARD_TIMEOUT);
1120         Message msg = mHandler.obtainMessage(KEYGUARD_TIMEOUT, options);
1121         mHandler.sendMessage(msg);
1122     }
1123 
1124     /**
1125      * Given the state of the keyguard, is the input restricted?
1126      * Input is restricted when the keyguard is showing, or when the keyguard
1127      * was suppressed by an app that disabled the keyguard or we haven't been provisioned yet.
1128      */
isInputRestricted()1129     public boolean isInputRestricted() {
1130         return mShowing || mNeedToReshowWhenReenabled;
1131     }
1132 
updateInputRestricted()1133     private void updateInputRestricted() {
1134         synchronized (this) {
1135             updateInputRestrictedLocked();
1136         }
1137     }
updateInputRestrictedLocked()1138     private void updateInputRestrictedLocked() {
1139         boolean inputRestricted = isInputRestricted();
1140         if (mInputRestricted != inputRestricted) {
1141             mInputRestricted = inputRestricted;
1142             int size = mKeyguardStateCallbacks.size();
1143             for (int i = size - 1; i >= 0; i--) {
1144                 try {
1145                     mKeyguardStateCallbacks.get(i).onInputRestrictedStateChanged(inputRestricted);
1146                 } catch (RemoteException e) {
1147                     Slog.w(TAG, "Failed to call onDeviceProvisioned", e);
1148                     if (e instanceof DeadObjectException) {
1149                         mKeyguardStateCallbacks.remove(i);
1150                     }
1151                 }
1152             }
1153         }
1154     }
1155 
1156     /**
1157      * Enable the keyguard if the settings are appropriate.
1158      */
doKeyguardLocked(Bundle options)1159     private void doKeyguardLocked(Bundle options) {
1160         // if another app is disabling us, don't show
1161         if (!mExternallyEnabled) {
1162             if (DEBUG) Log.d(TAG, "doKeyguard: not showing because externally disabled");
1163 
1164             // note: we *should* set mNeedToReshowWhenReenabled=true here, but that makes
1165             // for an occasional ugly flicker in this situation:
1166             // 1) receive a call with the screen on (no keyguard) or make a call
1167             // 2) screen times out
1168             // 3) user hits key to turn screen back on
1169             // instead, we reenable the keyguard when we know the screen is off and the call
1170             // ends (see the broadcast receiver below)
1171             // TODO: clean this up when we have better support at the window manager level
1172             // for apps that wish to be on top of the keyguard
1173             return;
1174         }
1175 
1176         // if the keyguard is already showing, don't bother
1177         if (mStatusBarKeyguardViewManager.isShowing()) {
1178             if (DEBUG) Log.d(TAG, "doKeyguard: not showing because it is already showing");
1179             resetStateLocked();
1180             return;
1181         }
1182 
1183         // In split system user mode, we never unlock system user.
1184         if (!UserManager.isSplitSystemUser()
1185                 || KeyguardUpdateMonitor.getCurrentUser() != UserHandle.USER_SYSTEM
1186                 || !mUpdateMonitor.isDeviceProvisioned()) {
1187 
1188             // if the setup wizard hasn't run yet, don't show
1189             final boolean requireSim = !SystemProperties.getBoolean("keyguard.no_require_sim", false);
1190             final boolean absent = SubscriptionManager.isValidSubscriptionId(
1191                     mUpdateMonitor.getNextSubIdForState(IccCardConstants.State.ABSENT));
1192             final boolean disabled = SubscriptionManager.isValidSubscriptionId(
1193                     mUpdateMonitor.getNextSubIdForState(IccCardConstants.State.PERM_DISABLED));
1194             final boolean lockedOrMissing = mUpdateMonitor.isSimPinSecure()
1195                     || ((absent || disabled) && requireSim);
1196 
1197             if (!lockedOrMissing && shouldWaitForProvisioning()) {
1198                 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because device isn't provisioned"
1199                         + " and the sim is not locked or missing");
1200                 return;
1201             }
1202 
1203             if (mLockPatternUtils.isLockScreenDisabled(KeyguardUpdateMonitor.getCurrentUser())
1204                     && !lockedOrMissing) {
1205                 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because lockscreen is off");
1206                 return;
1207             }
1208 
1209             if (mLockPatternUtils.checkVoldPassword(KeyguardUpdateMonitor.getCurrentUser())) {
1210                 if (DEBUG) Log.d(TAG, "Not showing lock screen since just decrypted");
1211                 // Without this, settings is not enabled until the lock screen first appears
1212                 setShowingLocked(false);
1213                 hideLocked();
1214                 mUpdateMonitor.reportSuccessfulStrongAuthUnlockAttempt();
1215                 return;
1216             }
1217         }
1218 
1219         if (DEBUG) Log.d(TAG, "doKeyguard: showing the lock screen");
1220         showLocked(options);
1221     }
1222 
lockProfile(int userId)1223     private void lockProfile(int userId) {
1224         mTrustManager.setDeviceLockedForUser(userId, true);
1225     }
1226 
shouldWaitForProvisioning()1227     private boolean shouldWaitForProvisioning() {
1228         return !mUpdateMonitor.isDeviceProvisioned() && !isSecure();
1229     }
1230 
1231     /**
1232      * Dismiss the keyguard through the security layers.
1233      */
handleDismiss()1234     public void handleDismiss() {
1235         if (mShowing && !mOccluded) {
1236             mStatusBarKeyguardViewManager.dismiss();
1237         }
1238     }
1239 
dismiss()1240     public void dismiss() {
1241         mHandler.sendEmptyMessage(DISMISS);
1242     }
1243 
1244     /**
1245      * Send message to keyguard telling it to reset its state.
1246      * @see #handleReset
1247      */
resetStateLocked()1248     private void resetStateLocked() {
1249         if (DEBUG) Log.e(TAG, "resetStateLocked");
1250         Message msg = mHandler.obtainMessage(RESET);
1251         mHandler.sendMessage(msg);
1252     }
1253 
1254     /**
1255      * Send message to keyguard telling it to verify unlock
1256      * @see #handleVerifyUnlock()
1257      */
verifyUnlockLocked()1258     private void verifyUnlockLocked() {
1259         if (DEBUG) Log.d(TAG, "verifyUnlockLocked");
1260         mHandler.sendEmptyMessage(VERIFY_UNLOCK);
1261     }
1262 
notifyStartedGoingToSleep()1263     private void notifyStartedGoingToSleep() {
1264         if (DEBUG) Log.d(TAG, "notifyStartedGoingToSleep");
1265         mHandler.sendEmptyMessage(NOTIFY_STARTED_GOING_TO_SLEEP);
1266     }
1267 
notifyFinishedGoingToSleep()1268     private void notifyFinishedGoingToSleep() {
1269         if (DEBUG) Log.d(TAG, "notifyFinishedGoingToSleep");
1270         mHandler.sendEmptyMessage(NOTIFY_FINISHED_GOING_TO_SLEEP);
1271     }
1272 
notifyStartedWakingUp()1273     private void notifyStartedWakingUp() {
1274         if (DEBUG) Log.d(TAG, "notifyStartedWakingUp");
1275         mHandler.sendEmptyMessage(NOTIFY_STARTED_WAKING_UP);
1276     }
1277 
notifyScreenOn(IKeyguardDrawnCallback callback)1278     private void notifyScreenOn(IKeyguardDrawnCallback callback) {
1279         if (DEBUG) Log.d(TAG, "notifyScreenOn");
1280         Message msg = mHandler.obtainMessage(NOTIFY_SCREEN_TURNING_ON, callback);
1281         mHandler.sendMessage(msg);
1282     }
1283 
notifyScreenTurnedOn()1284     private void notifyScreenTurnedOn() {
1285         if (DEBUG) Log.d(TAG, "notifyScreenTurnedOn");
1286         Message msg = mHandler.obtainMessage(NOTIFY_SCREEN_TURNED_ON);
1287         mHandler.sendMessage(msg);
1288     }
1289 
notifyScreenTurnedOff()1290     private void notifyScreenTurnedOff() {
1291         if (DEBUG) Log.d(TAG, "notifyScreenTurnedOff");
1292         Message msg = mHandler.obtainMessage(NOTIFY_SCREEN_TURNED_OFF);
1293         mHandler.sendMessage(msg);
1294     }
1295 
1296     /**
1297      * Send message to keyguard telling it to show itself
1298      * @see #handleShow
1299      */
showLocked(Bundle options)1300     private void showLocked(Bundle options) {
1301         if (DEBUG) Log.d(TAG, "showLocked");
1302         // ensure we stay awake until we are finished displaying the keyguard
1303         mShowKeyguardWakeLock.acquire();
1304         Message msg = mHandler.obtainMessage(SHOW, options);
1305         mHandler.sendMessage(msg);
1306     }
1307 
1308     /**
1309      * Send message to keyguard telling it to hide itself
1310      * @see #handleHide()
1311      */
hideLocked()1312     private void hideLocked() {
1313         if (DEBUG) Log.d(TAG, "hideLocked");
1314         Message msg = mHandler.obtainMessage(HIDE);
1315         mHandler.sendMessage(msg);
1316     }
1317 
isSecure()1318     public boolean isSecure() {
1319         return mLockPatternUtils.isSecure(KeyguardUpdateMonitor.getCurrentUser())
1320             || KeyguardUpdateMonitor.getInstance(mContext).isSimPinSecure();
1321     }
1322 
1323     /**
1324      * Update the newUserId. Call while holding WindowManagerService lock.
1325      * NOTE: Should only be called by KeyguardViewMediator in response to the user id changing.
1326      *
1327      * @param newUserId The id of the incoming user.
1328      */
setCurrentUser(int newUserId)1329     public void setCurrentUser(int newUserId) {
1330         KeyguardUpdateMonitor.setCurrentUser(newUserId);
1331     }
1332 
1333     private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() {
1334         @Override
1335         public void onReceive(Context context, Intent intent) {
1336             if (DELAYED_KEYGUARD_ACTION.equals(intent.getAction())) {
1337                 final int sequence = intent.getIntExtra("seq", 0);
1338                 if (DEBUG) Log.d(TAG, "received DELAYED_KEYGUARD_ACTION with seq = "
1339                         + sequence + ", mDelayedShowingSequence = " + mDelayedShowingSequence);
1340                 synchronized (KeyguardViewMediator.this) {
1341                     if (mDelayedShowingSequence == sequence) {
1342                         doKeyguardLocked(null);
1343                     }
1344                 }
1345             } else if (DELAYED_LOCK_PROFILE_ACTION.equals(intent.getAction())) {
1346                 final int sequence = intent.getIntExtra("seq", 0);
1347                 int userId = intent.getIntExtra(Intent.EXTRA_USER_ID, 0);
1348                 if (userId != 0) {
1349                     synchronized (KeyguardViewMediator.this) {
1350                         if (mDelayedProfileShowingSequence == sequence) {
1351                             lockProfile(userId);
1352                         }
1353                     }
1354                 }
1355             }
1356         }
1357     };
1358 
keyguardDone(boolean authenticated)1359     public void keyguardDone(boolean authenticated) {
1360         if (DEBUG) Log.d(TAG, "keyguardDone(" + authenticated +")");
1361         EventLog.writeEvent(70000, 2);
1362         Message msg = mHandler.obtainMessage(KEYGUARD_DONE, authenticated ? 1 : 0);
1363         mHandler.sendMessage(msg);
1364     }
1365 
1366     /**
1367      * This handler will be associated with the policy thread, which will also
1368      * be the UI thread of the keyguard.  Since the apis of the policy, and therefore
1369      * this class, can be called by other threads, any action that directly
1370      * interacts with the keyguard ui should be posted to this handler, rather
1371      * than called directly.
1372      */
1373     private Handler mHandler = new Handler(Looper.myLooper(), null, true /*async*/) {
1374         @Override
1375         public void handleMessage(Message msg) {
1376             switch (msg.what) {
1377                 case SHOW:
1378                     handleShow((Bundle) msg.obj);
1379                     break;
1380                 case HIDE:
1381                     handleHide();
1382                     break;
1383                 case RESET:
1384                     handleReset();
1385                     break;
1386                 case VERIFY_UNLOCK:
1387                     handleVerifyUnlock();
1388                     break;
1389                 case NOTIFY_STARTED_GOING_TO_SLEEP:
1390                     handleNotifyStartedGoingToSleep();
1391                     break;
1392                 case NOTIFY_FINISHED_GOING_TO_SLEEP:
1393                     handleNotifyFinishedGoingToSleep();
1394                     break;
1395                 case NOTIFY_SCREEN_TURNING_ON:
1396                     handleNotifyScreenTurningOn((IKeyguardDrawnCallback) msg.obj);
1397                     break;
1398                 case NOTIFY_SCREEN_TURNED_ON:
1399                     handleNotifyScreenTurnedOn();
1400                     break;
1401                 case NOTIFY_SCREEN_TURNED_OFF:
1402                     handleNotifyScreenTurnedOff();
1403                     break;
1404                 case NOTIFY_STARTED_WAKING_UP:
1405                     handleNotifyStartedWakingUp();
1406                     break;
1407                 case KEYGUARD_DONE:
1408                     handleKeyguardDone(msg.arg1 != 0);
1409                     break;
1410                 case KEYGUARD_DONE_DRAWING:
1411                     handleKeyguardDoneDrawing();
1412                     break;
1413                 case SET_OCCLUDED:
1414                     handleSetOccluded(msg.arg1 != 0);
1415                     break;
1416                 case KEYGUARD_TIMEOUT:
1417                     synchronized (KeyguardViewMediator.this) {
1418                         doKeyguardLocked((Bundle) msg.obj);
1419                     }
1420                     break;
1421                 case DISMISS:
1422                     handleDismiss();
1423                     break;
1424                 case START_KEYGUARD_EXIT_ANIM:
1425                     StartKeyguardExitAnimParams params = (StartKeyguardExitAnimParams) msg.obj;
1426                     handleStartKeyguardExitAnimation(params.startTime, params.fadeoutDuration);
1427                     FalsingManager.getInstance(mContext).onSucccessfulUnlock();
1428                     break;
1429                 case KEYGUARD_DONE_PENDING_TIMEOUT:
1430                     Log.w(TAG, "Timeout while waiting for activity drawn!");
1431                     // Fall through.
1432                 case ON_ACTIVITY_DRAWN:
1433                     handleOnActivityDrawn();
1434                     break;
1435             }
1436         }
1437     };
1438 
1439     /**
1440      * @see #keyguardDone
1441      * @see #KEYGUARD_DONE
1442      */
handleKeyguardDone(boolean authenticated)1443     private void handleKeyguardDone(boolean authenticated) {
1444         final int currentUser = KeyguardUpdateMonitor.getCurrentUser();
1445         if (mLockPatternUtils.isSecure(currentUser)) {
1446             mLockPatternUtils.getDevicePolicyManager().reportKeyguardDismissed(currentUser);
1447         }
1448         if (DEBUG) Log.d(TAG, "handleKeyguardDone");
1449         synchronized (this) {
1450             resetKeyguardDonePendingLocked();
1451         }
1452 
1453         if (authenticated) {
1454             mUpdateMonitor.clearFailedUnlockAttempts();
1455         }
1456         mUpdateMonitor.clearFingerprintRecognized();
1457 
1458         if (mGoingToSleep) {
1459             Log.i(TAG, "Device is going to sleep, aborting keyguardDone");
1460             return;
1461         }
1462         if (mExitSecureCallback != null) {
1463             try {
1464                 mExitSecureCallback.onKeyguardExitResult(authenticated);
1465             } catch (RemoteException e) {
1466                 Slog.w(TAG, "Failed to call onKeyguardExitResult(" + authenticated + ")", e);
1467             }
1468 
1469             mExitSecureCallback = null;
1470 
1471             if (authenticated) {
1472                 // after succesfully exiting securely, no need to reshow
1473                 // the keyguard when they've released the lock
1474                 mExternallyEnabled = true;
1475                 mNeedToReshowWhenReenabled = false;
1476                 updateInputRestricted();
1477             }
1478         }
1479 
1480         handleHide();
1481     }
1482 
sendUserPresentBroadcast()1483     private void sendUserPresentBroadcast() {
1484         synchronized (this) {
1485             if (mBootCompleted) {
1486                 int currentUserId = KeyguardUpdateMonitor.getCurrentUser();
1487                 final UserHandle currentUser = new UserHandle(currentUserId);
1488                 final UserManager um = (UserManager) mContext.getSystemService(
1489                         Context.USER_SERVICE);
1490                 for (int profileId : um.getProfileIdsWithDisabled(currentUser.getIdentifier())) {
1491                     mContext.sendBroadcastAsUser(USER_PRESENT_INTENT, UserHandle.of(profileId));
1492                 }
1493                 getLockPatternUtils().userPresent(currentUserId);
1494             } else {
1495                 mBootSendUserPresent = true;
1496             }
1497         }
1498     }
1499 
1500     /**
1501      * @see #keyguardDone
1502      * @see #KEYGUARD_DONE_DRAWING
1503      */
handleKeyguardDoneDrawing()1504     private void handleKeyguardDoneDrawing() {
1505         synchronized(this) {
1506             if (DEBUG) Log.d(TAG, "handleKeyguardDoneDrawing");
1507             if (mWaitingUntilKeyguardVisible) {
1508                 if (DEBUG) Log.d(TAG, "handleKeyguardDoneDrawing: notifying mWaitingUntilKeyguardVisible");
1509                 mWaitingUntilKeyguardVisible = false;
1510                 notifyAll();
1511 
1512                 // there will usually be two of these sent, one as a timeout, and one
1513                 // as a result of the callback, so remove any remaining messages from
1514                 // the queue
1515                 mHandler.removeMessages(KEYGUARD_DONE_DRAWING);
1516             }
1517         }
1518     }
1519 
playSounds(boolean locked)1520     private void playSounds(boolean locked) {
1521         playSound(locked ? mLockSoundId : mUnlockSoundId);
1522     }
1523 
playSound(int soundId)1524     private void playSound(int soundId) {
1525         if (soundId == 0) return;
1526         final ContentResolver cr = mContext.getContentResolver();
1527         if (Settings.System.getInt(cr, Settings.System.LOCKSCREEN_SOUNDS_ENABLED, 1) == 1) {
1528 
1529             mLockSounds.stop(mLockSoundStreamId);
1530             // Init mAudioManager
1531             if (mAudioManager == null) {
1532                 mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
1533                 if (mAudioManager == null) return;
1534                 mUiSoundsStreamType = mAudioManager.getUiSoundsStreamType();
1535             }
1536             // If the stream is muted, don't play the sound
1537             if (mAudioManager.isStreamMute(mUiSoundsStreamType)) return;
1538 
1539             mLockSoundStreamId = mLockSounds.play(soundId,
1540                     mLockSoundVolume, mLockSoundVolume, 1/*priortiy*/, 0/*loop*/, 1.0f/*rate*/);
1541         }
1542     }
1543 
playTrustedSound()1544     private void playTrustedSound() {
1545         playSound(mTrustedSoundId);
1546     }
1547 
updateActivityLockScreenState()1548     private void updateActivityLockScreenState() {
1549         try {
1550             ActivityManagerNative.getDefault().setLockScreenShown(mShowing, mOccluded);
1551         } catch (RemoteException e) {
1552         }
1553     }
1554 
1555     /**
1556      * Handle message sent by {@link #showLocked}.
1557      * @see #SHOW
1558      */
handleShow(Bundle options)1559     private void handleShow(Bundle options) {
1560         final int currentUser = KeyguardUpdateMonitor.getCurrentUser();
1561         if (mLockPatternUtils.isSecure(currentUser)) {
1562             mLockPatternUtils.getDevicePolicyManager().reportKeyguardSecured(currentUser);
1563         }
1564         synchronized (KeyguardViewMediator.this) {
1565             if (!mSystemReady) {
1566                 if (DEBUG) Log.d(TAG, "ignoring handleShow because system is not ready.");
1567                 return;
1568             } else {
1569                 if (DEBUG) Log.d(TAG, "handleShow");
1570             }
1571 
1572             setShowingLocked(true);
1573             mStatusBarKeyguardViewManager.show(options);
1574             mHiding = false;
1575             mWakeAndUnlocking = false;
1576             resetKeyguardDonePendingLocked();
1577             mHideAnimationRun = false;
1578             updateActivityLockScreenState();
1579             adjustStatusBarLocked();
1580             userActivity();
1581 
1582             mShowKeyguardWakeLock.release();
1583         }
1584         mKeyguardDisplayManager.show();
1585     }
1586 
1587     private final Runnable mKeyguardGoingAwayRunnable = new Runnable() {
1588         @Override
1589         public void run() {
1590             try {
1591                 mStatusBarKeyguardViewManager.keyguardGoingAway();
1592 
1593                 int flags = 0;
1594                 if (mStatusBarKeyguardViewManager.shouldDisableWindowAnimationsForUnlock()
1595                         || mWakeAndUnlocking) {
1596                     flags |= WindowManagerPolicy.KEYGUARD_GOING_AWAY_FLAG_NO_WINDOW_ANIMATIONS;
1597                 }
1598                 if (mStatusBarKeyguardViewManager.isGoingToNotificationShade()) {
1599                     flags |= WindowManagerPolicy.KEYGUARD_GOING_AWAY_FLAG_TO_SHADE;
1600                 }
1601                 if (mStatusBarKeyguardViewManager.isUnlockWithWallpaper()) {
1602                     flags |= WindowManagerPolicy.KEYGUARD_GOING_AWAY_FLAG_WITH_WALLPAPER;
1603                 }
1604 
1605                 // Don't actually hide the Keyguard at the moment, wait for window
1606                 // manager until it tells us it's safe to do so with
1607                 // startKeyguardExitAnimation.
1608                 ActivityManagerNative.getDefault().keyguardGoingAway(flags);
1609             } catch (RemoteException e) {
1610                 Log.e(TAG, "Error while calling WindowManager", e);
1611             }
1612         }
1613     };
1614 
1615     /**
1616      * Handle message sent by {@link #hideLocked()}
1617      * @see #HIDE
1618      */
handleHide()1619     private void handleHide() {
1620         synchronized (KeyguardViewMediator.this) {
1621             if (DEBUG) Log.d(TAG, "handleHide");
1622 
1623             if (UserManager.isSplitSystemUser()
1624                     && KeyguardUpdateMonitor.getCurrentUser() == UserHandle.USER_SYSTEM) {
1625                 // In split system user mode, we never unlock system user. The end user has to
1626                 // switch to another user.
1627                 // TODO: We should stop it early by disabling the swipe up flow. Right now swipe up
1628                 // still completes and makes the screen blank.
1629                 if (DEBUG) Log.d(TAG, "Split system user, quit unlocking.");
1630                 return;
1631             }
1632             mHiding = true;
1633             if (mShowing && !mOccluded) {
1634                 if (!mHideAnimationRun) {
1635                     mStatusBarKeyguardViewManager.startPreHideAnimation(mKeyguardGoingAwayRunnable);
1636                 } else {
1637                     mKeyguardGoingAwayRunnable.run();
1638                 }
1639             } else {
1640 
1641                 // Don't try to rely on WindowManager - if Keyguard wasn't showing, window
1642                 // manager won't start the exit animation.
1643                 handleStartKeyguardExitAnimation(
1644                         SystemClock.uptimeMillis() + mHideAnimation.getStartOffset(),
1645                         mHideAnimation.getDuration());
1646             }
1647         }
1648     }
1649 
handleOnActivityDrawn()1650     private void handleOnActivityDrawn() {
1651         if (DEBUG) Log.d(TAG, "handleOnActivityDrawn: mKeyguardDonePending=" + mKeyguardDonePending);
1652         if (mKeyguardDonePending) {
1653             mStatusBarKeyguardViewManager.onActivityDrawn();
1654         }
1655     }
1656 
handleStartKeyguardExitAnimation(long startTime, long fadeoutDuration)1657     private void handleStartKeyguardExitAnimation(long startTime, long fadeoutDuration) {
1658         synchronized (KeyguardViewMediator.this) {
1659 
1660             if (!mHiding) {
1661                 return;
1662             }
1663             mHiding = false;
1664 
1665             if (mWakeAndUnlocking && mDrawnCallback != null) {
1666 
1667                 // Hack level over 9000: To speed up wake-and-unlock sequence, force it to report
1668                 // the next draw from here so we don't have to wait for window manager to signal
1669                 // this to our ViewRootImpl.
1670                 mStatusBarKeyguardViewManager.getViewRootImpl().setReportNextDraw();
1671                 notifyDrawn(mDrawnCallback);
1672             }
1673 
1674             // only play "unlock" noises if not on a call (since the incall UI
1675             // disables the keyguard)
1676             if (TelephonyManager.EXTRA_STATE_IDLE.equals(mPhoneState)) {
1677                 playSounds(false);
1678             }
1679 
1680             setShowingLocked(false);
1681             mStatusBarKeyguardViewManager.hide(startTime, fadeoutDuration);
1682             resetKeyguardDonePendingLocked();
1683             mHideAnimationRun = false;
1684             updateActivityLockScreenState();
1685             adjustStatusBarLocked();
1686             sendUserPresentBroadcast();
1687         }
1688     }
1689 
adjustStatusBarLocked()1690     private void adjustStatusBarLocked() {
1691         if (mStatusBarManager == null) {
1692             mStatusBarManager = (StatusBarManager)
1693                     mContext.getSystemService(Context.STATUS_BAR_SERVICE);
1694         }
1695         if (mStatusBarManager == null) {
1696             Log.w(TAG, "Could not get status bar manager");
1697         } else {
1698             // Disable aspects of the system/status/navigation bars that must not be re-enabled by
1699             // windows that appear on top, ever
1700             int flags = StatusBarManager.DISABLE_NONE;
1701             if (mShowing) {
1702                 // Permanently disable components not available when keyguard is enabled
1703                 // (like recents). Temporary enable/disable (e.g. the "back" button) are
1704                 // done in KeyguardHostView.
1705                 flags |= StatusBarManager.DISABLE_RECENT;
1706                 flags |= StatusBarManager.DISABLE_SEARCH;
1707             }
1708             if (isShowingAndNotOccluded()) {
1709                 flags |= StatusBarManager.DISABLE_HOME;
1710             }
1711 
1712             if (DEBUG) {
1713                 Log.d(TAG, "adjustStatusBarLocked: mShowing=" + mShowing + " mOccluded=" + mOccluded
1714                         + " isSecure=" + isSecure() + " --> flags=0x" + Integer.toHexString(flags));
1715             }
1716 
1717             if (!(mContext instanceof Activity)) {
1718                 mStatusBarManager.disable(flags);
1719             }
1720         }
1721     }
1722 
1723     /**
1724      * Handle message sent by {@link #resetStateLocked}
1725      * @see #RESET
1726      */
handleReset()1727     private void handleReset() {
1728         synchronized (KeyguardViewMediator.this) {
1729             if (DEBUG) Log.d(TAG, "handleReset");
1730             mStatusBarKeyguardViewManager.reset();
1731         }
1732     }
1733 
1734     /**
1735      * Handle message sent by {@link #verifyUnlock}
1736      * @see #VERIFY_UNLOCK
1737      */
handleVerifyUnlock()1738     private void handleVerifyUnlock() {
1739         synchronized (KeyguardViewMediator.this) {
1740             if (DEBUG) Log.d(TAG, "handleVerifyUnlock");
1741             setShowingLocked(true);
1742             mStatusBarKeyguardViewManager.verifyUnlock();
1743             updateActivityLockScreenState();
1744         }
1745     }
1746 
handleNotifyStartedGoingToSleep()1747     private void handleNotifyStartedGoingToSleep() {
1748         synchronized (KeyguardViewMediator.this) {
1749             if (DEBUG) Log.d(TAG, "handleNotifyStartedGoingToSleep");
1750             mStatusBarKeyguardViewManager.onStartedGoingToSleep();
1751         }
1752     }
1753 
1754     /**
1755      * Handle message sent by {@link #notifyFinishedGoingToSleep()}
1756      * @see #NOTIFY_FINISHED_GOING_TO_SLEEP
1757      */
handleNotifyFinishedGoingToSleep()1758     private void handleNotifyFinishedGoingToSleep() {
1759         synchronized (KeyguardViewMediator.this) {
1760             if (DEBUG) Log.d(TAG, "handleNotifyFinishedGoingToSleep");
1761             mStatusBarKeyguardViewManager.onFinishedGoingToSleep();
1762         }
1763     }
1764 
handleNotifyStartedWakingUp()1765     private void handleNotifyStartedWakingUp() {
1766         synchronized (KeyguardViewMediator.this) {
1767             if (DEBUG) Log.d(TAG, "handleNotifyWakingUp");
1768             mStatusBarKeyguardViewManager.onStartedWakingUp();
1769         }
1770     }
1771 
handleNotifyScreenTurningOn(IKeyguardDrawnCallback callback)1772     private void handleNotifyScreenTurningOn(IKeyguardDrawnCallback callback) {
1773         synchronized (KeyguardViewMediator.this) {
1774             if (DEBUG) Log.d(TAG, "handleNotifyScreenTurningOn");
1775             mStatusBarKeyguardViewManager.onScreenTurningOn();
1776             if (callback != null) {
1777                 if (mWakeAndUnlocking) {
1778                     mDrawnCallback = callback;
1779                 } else {
1780                     notifyDrawn(callback);
1781                 }
1782             }
1783         }
1784     }
1785 
handleNotifyScreenTurnedOn()1786     private void handleNotifyScreenTurnedOn() {
1787         synchronized (this) {
1788             if (DEBUG) Log.d(TAG, "handleNotifyScreenTurnedOn");
1789             mStatusBarKeyguardViewManager.onScreenTurnedOn();
1790         }
1791     }
1792 
handleNotifyScreenTurnedOff()1793     private void handleNotifyScreenTurnedOff() {
1794         synchronized (this) {
1795             if (DEBUG) Log.d(TAG, "handleNotifyScreenTurnedOff");
1796             mStatusBarKeyguardViewManager.onScreenTurnedOff();
1797             mWakeAndUnlocking = false;
1798         }
1799     }
1800 
notifyDrawn(final IKeyguardDrawnCallback callback)1801     private void notifyDrawn(final IKeyguardDrawnCallback callback) {
1802         try {
1803             callback.onDrawn();
1804         } catch (RemoteException e) {
1805             Slog.w(TAG, "Exception calling onDrawn():", e);
1806         }
1807     }
1808 
resetKeyguardDonePendingLocked()1809     private void resetKeyguardDonePendingLocked() {
1810         mKeyguardDonePending = false;
1811         mHandler.removeMessages(KEYGUARD_DONE_PENDING_TIMEOUT);
1812     }
1813 
1814     @Override
onBootCompleted()1815     public void onBootCompleted() {
1816         mUpdateMonitor.dispatchBootCompleted();
1817         synchronized (this) {
1818             mBootCompleted = true;
1819             if (mBootSendUserPresent) {
1820                 sendUserPresentBroadcast();
1821             }
1822         }
1823     }
1824 
onWakeAndUnlocking()1825     public void onWakeAndUnlocking() {
1826         mWakeAndUnlocking = true;
1827         keyguardDone(true /* authenticated */);
1828     }
1829 
registerStatusBar(PhoneStatusBar phoneStatusBar, ViewGroup container, StatusBarWindowManager statusBarWindowManager, ScrimController scrimController, FingerprintUnlockController fingerprintUnlockController)1830     public StatusBarKeyguardViewManager registerStatusBar(PhoneStatusBar phoneStatusBar,
1831             ViewGroup container, StatusBarWindowManager statusBarWindowManager,
1832             ScrimController scrimController,
1833             FingerprintUnlockController fingerprintUnlockController) {
1834         mStatusBarKeyguardViewManager.registerStatusBar(phoneStatusBar, container,
1835                 statusBarWindowManager, scrimController, fingerprintUnlockController);
1836         return mStatusBarKeyguardViewManager;
1837     }
1838 
startKeyguardExitAnimation(long startTime, long fadeoutDuration)1839     public void startKeyguardExitAnimation(long startTime, long fadeoutDuration) {
1840         Message msg = mHandler.obtainMessage(START_KEYGUARD_EXIT_ANIM,
1841                 new StartKeyguardExitAnimParams(startTime, fadeoutDuration));
1842         mHandler.sendMessage(msg);
1843     }
1844 
onActivityDrawn()1845     public void onActivityDrawn() {
1846         mHandler.sendEmptyMessage(ON_ACTIVITY_DRAWN);
1847     }
1848 
getViewMediatorCallback()1849     public ViewMediatorCallback getViewMediatorCallback() {
1850         return mViewMediatorCallback;
1851     }
1852 
getLockPatternUtils()1853     public LockPatternUtils getLockPatternUtils() {
1854         return mLockPatternUtils;
1855     }
1856 
1857     @Override
dump(FileDescriptor fd, PrintWriter pw, String[] args)1858     public void dump(FileDescriptor fd, PrintWriter pw, String[] args) {
1859         pw.print("  mSystemReady: "); pw.println(mSystemReady);
1860         pw.print("  mBootCompleted: "); pw.println(mBootCompleted);
1861         pw.print("  mBootSendUserPresent: "); pw.println(mBootSendUserPresent);
1862         pw.print("  mExternallyEnabled: "); pw.println(mExternallyEnabled);
1863         pw.print("  mNeedToReshowWhenReenabled: "); pw.println(mNeedToReshowWhenReenabled);
1864         pw.print("  mShowing: "); pw.println(mShowing);
1865         pw.print("  mInputRestricted: "); pw.println(mInputRestricted);
1866         pw.print("  mOccluded: "); pw.println(mOccluded);
1867         pw.print("  mDelayedShowingSequence: "); pw.println(mDelayedShowingSequence);
1868         pw.print("  mExitSecureCallback: "); pw.println(mExitSecureCallback);
1869         pw.print("  mDeviceInteractive: "); pw.println(mDeviceInteractive);
1870         pw.print("  mGoingToSleep: "); pw.println(mGoingToSleep);
1871         pw.print("  mHiding: "); pw.println(mHiding);
1872         pw.print("  mWaitingUntilKeyguardVisible: "); pw.println(mWaitingUntilKeyguardVisible);
1873         pw.print("  mKeyguardDonePending: "); pw.println(mKeyguardDonePending);
1874         pw.print("  mHideAnimationRun: "); pw.println(mHideAnimationRun);
1875         pw.print("  mPendingReset: "); pw.println(mPendingReset);
1876         pw.print("  mPendingLock: "); pw.println(mPendingLock);
1877         pw.print("  mWakeAndUnlocking: "); pw.println(mWakeAndUnlocking);
1878         pw.print("  mDrawnCallback: "); pw.println(mDrawnCallback);
1879     }
1880 
1881     private static class StartKeyguardExitAnimParams {
1882 
1883         long startTime;
1884         long fadeoutDuration;
1885 
StartKeyguardExitAnimParams(long startTime, long fadeoutDuration)1886         private StartKeyguardExitAnimParams(long startTime, long fadeoutDuration) {
1887             this.startTime = startTime;
1888             this.fadeoutDuration = fadeoutDuration;
1889         }
1890     }
1891 
setShowingLocked(boolean showing)1892     private void setShowingLocked(boolean showing) {
1893         if (showing != mShowing) {
1894             mShowing = showing;
1895             int size = mKeyguardStateCallbacks.size();
1896             for (int i = size - 1; i >= 0; i--) {
1897                 try {
1898                     mKeyguardStateCallbacks.get(i).onShowingStateChanged(showing);
1899                 } catch (RemoteException e) {
1900                     Slog.w(TAG, "Failed to call onShowingStateChanged", e);
1901                     if (e instanceof DeadObjectException) {
1902                         mKeyguardStateCallbacks.remove(i);
1903                     }
1904                 }
1905             }
1906             updateInputRestrictedLocked();
1907             mTrustManager.reportKeyguardShowingChanged();
1908         }
1909     }
1910 
addStateMonitorCallback(IKeyguardStateCallback callback)1911     public void addStateMonitorCallback(IKeyguardStateCallback callback) {
1912         synchronized (this) {
1913             mKeyguardStateCallbacks.add(callback);
1914             try {
1915                 callback.onSimSecureStateChanged(mUpdateMonitor.isSimPinSecure());
1916                 callback.onShowingStateChanged(mShowing);
1917                 callback.onInputRestrictedStateChanged(mInputRestricted);
1918             } catch (RemoteException e) {
1919                 Slog.w(TAG, "Failed to call onShowingStateChanged or onSimSecureStateChanged or onInputRestrictedStateChanged", e);
1920             }
1921         }
1922     }
1923 }
1924