KeyguardViewMediator.java revision e51cf7aeb6157017801a802b4c1d74cbf51b7a01
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.keyguard; 18 19import com.android.internal.policy.IKeyguardExitCallback; 20import com.android.internal.policy.IKeyguardShowCallback; 21import static android.provider.Settings.System.SCREEN_OFF_TIMEOUT; 22 23import android.app.Activity; 24import android.app.ActivityManagerNative; 25import android.app.AlarmManager; 26import android.app.PendingIntent; 27import android.app.SearchManager; 28import android.app.StatusBarManager; 29import android.content.BroadcastReceiver; 30import android.content.ContentResolver; 31import android.content.Context; 32import android.content.Intent; 33import android.content.IntentFilter; 34import android.media.AudioManager; 35import android.media.SoundPool; 36import android.os.Bundle; 37import android.os.Handler; 38import android.os.Looper; 39import android.os.Message; 40import android.os.PowerManager; 41import android.os.RemoteException; 42import android.os.SystemClock; 43import android.os.SystemProperties; 44import android.os.UserHandle; 45import android.os.UserManager; 46import android.provider.Settings; 47import android.telephony.TelephonyManager; 48import android.util.EventLog; 49import android.util.Log; 50import android.util.Slog; 51import android.view.KeyEvent; 52import android.view.WindowManager; 53import android.view.WindowManagerPolicy; 54 55import com.android.internal.telephony.IccCardConstants; 56import com.android.internal.widget.LockPatternUtils; 57 58 59/** 60 * Mediates requests related to the keyguard. This includes queries about the 61 * state of the keyguard, power management events that effect whether the keyguard 62 * should be shown or reset, callbacks to the phone window manager to notify 63 * it of when the keyguard is showing, and events from the keyguard view itself 64 * stating that the keyguard was succesfully unlocked. 65 * 66 * Note that the keyguard view is shown when the screen is off (as appropriate) 67 * so that once the screen comes on, it will be ready immediately. 68 * 69 * Example queries about the keyguard: 70 * - is {movement, key} one that should wake the keygaurd? 71 * - is the keyguard showing? 72 * - are input events restricted due to the state of the keyguard? 73 * 74 * Callbacks to the phone window manager: 75 * - the keyguard is showing 76 * 77 * Example external events that translate to keyguard view changes: 78 * - screen turned off -> reset the keyguard, and show it so it will be ready 79 * next time the screen turns on 80 * - keyboard is slid open -> if the keyguard is not secure, hide it 81 * 82 * Events from the keyguard view: 83 * - user succesfully unlocked keyguard -> hide keyguard view, and no longer 84 * restrict input events. 85 * 86 * Note: in addition to normal power managment events that effect the state of 87 * whether the keyguard should be showing, external apps and services may request 88 * that the keyguard be disabled via {@link #setKeyguardEnabled(boolean)}. When 89 * false, this will override all other conditions for turning on the keyguard. 90 * 91 * Threading and synchronization: 92 * This class is created by the initialization routine of the {@link WindowManagerPolicy}, 93 * and runs on its thread. The keyguard UI is created from that thread in the 94 * constructor of this class. The apis may be called from other threads, including the 95 * {@link com.android.server.input.InputManagerService}'s and {@link android.view.WindowManager}'s. 96 * Therefore, methods on this class are synchronized, and any action that is pointed 97 * directly to the keyguard UI is posted to a {@link Handler} to ensure it is taken on the UI 98 * thread of the keyguard. 99 */ 100public class KeyguardViewMediator { 101 private static final int KEYGUARD_DISPLAY_TIMEOUT_DELAY_DEFAULT = 30000; 102 final static boolean DEBUG = false; 103 private final static boolean DBG_WAKE = false; 104 105 private final static String TAG = "KeyguardViewMediator"; 106 107 private static final String DELAYED_KEYGUARD_ACTION = 108 "com.android.internal.policy.impl.PhoneWindowManager.DELAYED_KEYGUARD"; 109 110 // used for handler messages 111 private static final int SHOW = 2; 112 private static final int HIDE = 3; 113 private static final int RESET = 4; 114 private static final int VERIFY_UNLOCK = 5; 115 private static final int NOTIFY_SCREEN_OFF = 6; 116 private static final int NOTIFY_SCREEN_ON = 7; 117 private static final int KEYGUARD_DONE = 9; 118 private static final int KEYGUARD_DONE_DRAWING = 10; 119 private static final int KEYGUARD_DONE_AUTHENTICATING = 11; 120 private static final int SET_HIDDEN = 12; 121 private static final int KEYGUARD_TIMEOUT = 13; 122 private static final int SHOW_ASSISTANT = 14; 123 124 /** 125 * The default amount of time we stay awake (used for all key input) 126 */ 127 protected static final int AWAKE_INTERVAL_DEFAULT_MS = 10000; 128 129 /** 130 * How long to wait after the screen turns off due to timeout before 131 * turning on the keyguard (i.e, the user has this much time to turn 132 * the screen back on without having to face the keyguard). 133 */ 134 private static final int KEYGUARD_LOCK_AFTER_DELAY_DEFAULT = 5000; 135 136 /** 137 * How long we'll wait for the {@link ViewMediatorCallback#keyguardDoneDrawing()} 138 * callback before unblocking a call to {@link #setKeyguardEnabled(boolean)} 139 * that is reenabling the keyguard. 140 */ 141 private static final int KEYGUARD_DONE_DRAWING_TIMEOUT_MS = 2000; 142 143 /** 144 * Allow the user to expand the status bar when the keyguard is engaged 145 * (without a pattern or password). 146 */ 147 private static final boolean ENABLE_INSECURE_STATUS_BAR_EXPAND = true; 148 149 /** The stream type that the lock sounds are tied to. */ 150 private int mMasterStreamType; 151 152 private Context mContext; 153 private AlarmManager mAlarmManager; 154 private AudioManager mAudioManager; 155 private StatusBarManager mStatusBarManager; 156 private boolean mShowLockIcon; 157 private boolean mShowingLockIcon; 158 private boolean mSwitchingUser; 159 160 private boolean mSystemReady; 161 162 // Whether the next call to playSounds() should be skipped. Defaults to 163 // true because the first lock (on boot) should be silent. 164 private boolean mSuppressNextLockSound = true; 165 166 167 /** High level access to the power manager for WakeLocks */ 168 private PowerManager mPM; 169 170 /** UserManager for querying number of users */ 171 private UserManager mUserManager; 172 173 /** SearchManager for determining whether or not search assistant is available */ 174 private SearchManager mSearchManager; 175 176 /** 177 * Used to keep the device awake while to ensure the keyguard finishes opening before 178 * we sleep. 179 */ 180 private PowerManager.WakeLock mShowKeyguardWakeLock; 181 182 private KeyguardViewManager mKeyguardViewManager; 183 184 // these are protected by synchronized (this) 185 186 /** 187 * External apps (like the phone app) can tell us to disable the keygaurd. 188 */ 189 private boolean mExternallyEnabled = true; 190 191 /** 192 * Remember if an external call to {@link #setKeyguardEnabled} with value 193 * false caused us to hide the keyguard, so that we need to reshow it once 194 * the keygaurd is reenabled with another call with value true. 195 */ 196 private boolean mNeedToReshowWhenReenabled = false; 197 198 // cached value of whether we are showing (need to know this to quickly 199 // answer whether the input should be restricted) 200 private boolean mShowing = false; 201 202 // true if the keyguard is hidden by another window 203 private boolean mHidden = false; 204 205 /** 206 * Helps remember whether the screen has turned on since the last time 207 * it turned off due to timeout. see {@link #onScreenTurnedOff(int)} 208 */ 209 private int mDelayedShowingSequence; 210 211 /** 212 * If the user has disabled the keyguard, then requests to exit, this is 213 * how we'll ultimately let them know whether it was successful. We use this 214 * var being non-null as an indicator that there is an in progress request. 215 */ 216 private IKeyguardExitCallback mExitSecureCallback; 217 218 // the properties of the keyguard 219 220 private KeyguardUpdateMonitor mUpdateMonitor; 221 222 private boolean mScreenOn; 223 224 // last known state of the cellular connection 225 private String mPhoneState = TelephonyManager.EXTRA_STATE_IDLE; 226 227 /** 228 * we send this intent when the keyguard is dismissed. 229 */ 230 private static final Intent USER_PRESENT_INTENT = new Intent(Intent.ACTION_USER_PRESENT) 231 .addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING 232 | Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 233 234 /** 235 * {@link #setKeyguardEnabled} waits on this condition when it reenables 236 * the keyguard. 237 */ 238 private boolean mWaitingUntilKeyguardVisible = false; 239 private LockPatternUtils mLockPatternUtils; 240 private boolean mKeyguardDonePending = false; 241 242 private SoundPool mLockSounds; 243 private int mLockSoundId; 244 private int mUnlockSoundId; 245 private int mLockSoundStreamId; 246 247 /** 248 * The volume applied to the lock/unlock sounds. 249 */ 250 private final float mLockSoundVolume; 251 252 /** 253 * Cache of avatar drawables, for use by KeyguardMultiUserAvatar. 254 */ 255 private static MultiUserAvatarCache sMultiUserAvatarCache = new MultiUserAvatarCache(); 256 257 /** 258 * The callback used by the keyguard view to tell the {@link KeyguardViewMediator} 259 * various things. 260 */ 261 public interface ViewMediatorCallback { 262 /** 263 * Reports user activity and requests that the screen stay on. 264 */ 265 void userActivity(); 266 267 /** 268 * Reports user activity and requests that the screen stay on for at least 269 * the specified amount of time. 270 * @param millis The amount of time in millis. This value is currently ignored. 271 */ 272 void userActivity(long millis); 273 274 /** 275 * Report that the keyguard is done. 276 * @param authenticated Whether the user securely got past the keyguard. 277 * the only reason for this to be false is if the keyguard was instructed 278 * to appear temporarily to verify the user is supposed to get past the 279 * keyguard, and the user fails to do so. 280 */ 281 void keyguardDone(boolean authenticated); 282 283 /** 284 * Report that the keyguard is done drawing. 285 */ 286 void keyguardDoneDrawing(); 287 288 /** 289 * Tell ViewMediator that the current view needs IME input 290 * @param needsInput 291 */ 292 void setNeedsInput(boolean needsInput); 293 294 /** 295 * Tell view mediator that the keyguard view's desired user activity timeout 296 * has changed and needs to be reapplied to the window. 297 */ 298 void onUserActivityTimeoutChanged(); 299 300 /** 301 * Report that the keyguard is dismissable, pending the next keyguardDone call. 302 */ 303 void keyguardDonePending(); 304 } 305 306 KeyguardUpdateMonitorCallback mUpdateCallback = new KeyguardUpdateMonitorCallback() { 307 308 @Override 309 public void onUserSwitching(int userId) { 310 // Note that the mLockPatternUtils user has already been updated from setCurrentUser. 311 // We need to force a reset of the views, since lockNow (called by 312 // ActivityManagerService) will not reconstruct the keyguard if it is already showing. 313 synchronized (KeyguardViewMediator.this) { 314 mSwitchingUser = true; 315 resetStateLocked(null); 316 adjustStatusBarLocked(); 317 // When we switch users we want to bring the new user to the biometric unlock even 318 // if the current user has gone to the backup. 319 KeyguardUpdateMonitor.getInstance(mContext).setAlternateUnlockEnabled(true); 320 } 321 } 322 323 @Override 324 public void onUserSwitchComplete(int userId) { 325 mSwitchingUser = false; 326 } 327 328 @Override 329 public void onUserRemoved(int userId) { 330 mLockPatternUtils.removeUser(userId); 331 sMultiUserAvatarCache.clear(userId); 332 } 333 334 @Override 335 public void onUserInfoChanged(int userId) { 336 sMultiUserAvatarCache.clear(userId); 337 } 338 339 @Override 340 void onPhoneStateChanged(int phoneState) { 341 synchronized (KeyguardViewMediator.this) { 342 if (TelephonyManager.CALL_STATE_IDLE == phoneState // call ending 343 && !mScreenOn // screen off 344 && mExternallyEnabled) { // not disabled by any app 345 346 // note: this is a way to gracefully reenable the keyguard when the call 347 // ends and the screen is off without always reenabling the keyguard 348 // each time the screen turns off while in call (and having an occasional ugly 349 // flicker while turning back on the screen and disabling the keyguard again). 350 if (DEBUG) Log.d(TAG, "screen is off and call ended, let's make sure the " 351 + "keyguard is showing"); 352 doKeyguardLocked(null); 353 } 354 } 355 }; 356 357 @Override 358 public void onClockVisibilityChanged() { 359 adjustStatusBarLocked(); 360 } 361 362 @Override 363 public void onDeviceProvisioned() { 364 sendUserPresentBroadcast(); 365 } 366 367 @Override 368 public void onSimStateChanged(IccCardConstants.State simState) { 369 if (DEBUG) Log.d(TAG, "onSimStateChanged: " + simState); 370 371 switch (simState) { 372 case NOT_READY: 373 case ABSENT: 374 // only force lock screen in case of missing sim if user hasn't 375 // gone through setup wizard 376 synchronized (this) { 377 if (!mUpdateMonitor.isDeviceProvisioned()) { 378 if (!isShowing()) { 379 if (DEBUG) Log.d(TAG, "ICC_ABSENT isn't showing," 380 + " we need to show the keyguard since the " 381 + "device isn't provisioned yet."); 382 doKeyguardLocked(null); 383 } else { 384 resetStateLocked(null); 385 } 386 } 387 } 388 break; 389 case PIN_REQUIRED: 390 case PUK_REQUIRED: 391 synchronized (this) { 392 if (!isShowing()) { 393 if (DEBUG) Log.d(TAG, "INTENT_VALUE_ICC_LOCKED and keygaurd isn't " 394 + "showing; need to show keyguard so user can enter sim pin"); 395 doKeyguardLocked(null); 396 } else { 397 resetStateLocked(null); 398 } 399 } 400 break; 401 case PERM_DISABLED: 402 synchronized (this) { 403 if (!isShowing()) { 404 if (DEBUG) Log.d(TAG, "PERM_DISABLED and " 405 + "keygaurd isn't showing."); 406 doKeyguardLocked(null); 407 } else { 408 if (DEBUG) Log.d(TAG, "PERM_DISABLED, resetStateLocked to" 409 + "show permanently disabled message in lockscreen."); 410 resetStateLocked(null); 411 } 412 } 413 break; 414 case READY: 415 synchronized (this) { 416 if (isShowing()) { 417 resetStateLocked(null); 418 } 419 } 420 break; 421 } 422 } 423 424 }; 425 426 ViewMediatorCallback mViewMediatorCallback = new ViewMediatorCallback() { 427 public void userActivity() { 428 KeyguardViewMediator.this.userActivity(); 429 } 430 431 public void userActivity(long holdMs) { 432 KeyguardViewMediator.this.userActivity(holdMs); 433 } 434 435 public void keyguardDone(boolean authenticated) { 436 KeyguardViewMediator.this.keyguardDone(authenticated, true); 437 } 438 439 public void keyguardDoneDrawing() { 440 mHandler.sendEmptyMessage(KEYGUARD_DONE_DRAWING); 441 } 442 443 @Override 444 public void setNeedsInput(boolean needsInput) { 445 mKeyguardViewManager.setNeedsInput(needsInput); 446 } 447 448 @Override 449 public void onUserActivityTimeoutChanged() { 450 mKeyguardViewManager.updateUserActivityTimeout(); 451 } 452 453 @Override 454 public void keyguardDonePending() { 455 mKeyguardDonePending = true; 456 } 457 }; 458 459 private void userActivity() { 460 userActivity(AWAKE_INTERVAL_DEFAULT_MS); 461 } 462 463 public void userActivity(long holdMs) { 464 // We ignore the hold time. Eventually we should remove it. 465 // Instead, the keyguard window has an explicit user activity timeout set on it. 466 mPM.userActivity(SystemClock.uptimeMillis(), false); 467 } 468 469 /** 470 * Construct a KeyguardViewMediator 471 * @param context 472 * @param lockPatternUtils optional mock interface for LockPatternUtils 473 */ 474 public KeyguardViewMediator(Context context, LockPatternUtils lockPatternUtils) { 475 mContext = context; 476 mPM = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 477 mUserManager = (UserManager) mContext.getSystemService(Context.USER_SERVICE); 478 mShowKeyguardWakeLock = mPM.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "show keyguard"); 479 mShowKeyguardWakeLock.setReferenceCounted(false); 480 481 mContext.registerReceiver(mBroadcastReceiver, new IntentFilter(DELAYED_KEYGUARD_ACTION)); 482 483 mAlarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 484 485 mUpdateMonitor = KeyguardUpdateMonitor.getInstance(context); 486 487 mLockPatternUtils = lockPatternUtils != null 488 ? lockPatternUtils : new LockPatternUtils(mContext); 489 mLockPatternUtils.setCurrentUser(UserHandle.USER_OWNER); 490 491 WindowManager wm = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE); 492 493 mKeyguardViewManager = new KeyguardViewManager(context, wm, mViewMediatorCallback, 494 mLockPatternUtils); 495 496 final ContentResolver cr = mContext.getContentResolver(); 497 mShowLockIcon = (Settings.System.getInt(cr, "show_status_bar_lock", 0) == 1); 498 499 mScreenOn = mPM.isScreenOn(); 500 501 mLockSounds = new SoundPool(1, AudioManager.STREAM_SYSTEM, 0); 502 String soundPath = Settings.Global.getString(cr, Settings.Global.LOCK_SOUND); 503 if (soundPath != null) { 504 mLockSoundId = mLockSounds.load(soundPath, 1); 505 } 506 if (soundPath == null || mLockSoundId == 0) { 507 Log.w(TAG, "failed to load lock sound from " + soundPath); 508 } 509 soundPath = Settings.Global.getString(cr, Settings.Global.UNLOCK_SOUND); 510 if (soundPath != null) { 511 mUnlockSoundId = mLockSounds.load(soundPath, 1); 512 } 513 if (soundPath == null || mUnlockSoundId == 0) { 514 Log.w(TAG, "failed to load unlock sound from " + soundPath); 515 } 516 int lockSoundDefaultAttenuation = context.getResources().getInteger( 517 com.android.internal.R.integer.config_lockSoundVolumeDb); 518 mLockSoundVolume = (float)Math.pow(10, (float)lockSoundDefaultAttenuation/20); 519 } 520 521 /** 522 * Let us know that the system is ready after startup. 523 */ 524 public void onSystemReady() { 525 mSearchManager = (SearchManager) mContext.getSystemService(Context.SEARCH_SERVICE); 526 synchronized (this) { 527 if (DEBUG) Log.d(TAG, "onSystemReady"); 528 mSystemReady = true; 529 mUpdateMonitor.registerCallback(mUpdateCallback); 530 531 // Suppress biometric unlock right after boot until things have settled if it is the 532 // selected security method, otherwise unsuppress it. It must be unsuppressed if it is 533 // not the selected security method for the following reason: if the user starts 534 // without a screen lock selected, the biometric unlock would be suppressed the first 535 // time they try to use it. 536 // 537 // Note that the biometric unlock will still not show if it is not the selected method. 538 // Calling setAlternateUnlockEnabled(true) simply says don't suppress it if it is the 539 // selected method. 540 if (mLockPatternUtils.usingBiometricWeak() 541 && mLockPatternUtils.isBiometricWeakInstalled()) { 542 if (DEBUG) Log.d(TAG, "suppressing biometric unlock during boot"); 543 mUpdateMonitor.setAlternateUnlockEnabled(false); 544 } else { 545 mUpdateMonitor.setAlternateUnlockEnabled(true); 546 } 547 548 doKeyguardLocked(null); 549 } 550 // Most services aren't available until the system reaches the ready state, so we 551 // send it here when the device first boots. 552 maybeSendUserPresentBroadcast(); 553 } 554 555 /** 556 * Called to let us know the screen was turned off. 557 * @param why either {@link WindowManagerPolicy#OFF_BECAUSE_OF_USER}, 558 * {@link WindowManagerPolicy#OFF_BECAUSE_OF_TIMEOUT} or 559 * {@link WindowManagerPolicy#OFF_BECAUSE_OF_PROX_SENSOR}. 560 */ 561 public void onScreenTurnedOff(int why) { 562 synchronized (this) { 563 mScreenOn = false; 564 if (DEBUG) Log.d(TAG, "onScreenTurnedOff(" + why + ")"); 565 566 mKeyguardDonePending = false; 567 568 // Lock immediately based on setting if secure (user has a pin/pattern/password). 569 // This also "locks" the device when not secure to provide easy access to the 570 // camera while preventing unwanted input. 571 final boolean lockImmediately = 572 mLockPatternUtils.getPowerButtonInstantlyLocks() || !mLockPatternUtils.isSecure(); 573 574 if (mExitSecureCallback != null) { 575 if (DEBUG) Log.d(TAG, "pending exit secure callback cancelled"); 576 try { 577 mExitSecureCallback.onKeyguardExitResult(false); 578 } catch (RemoteException e) { 579 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 580 } 581 mExitSecureCallback = null; 582 if (!mExternallyEnabled) { 583 hideLocked(); 584 } 585 } else if (mShowing) { 586 notifyScreenOffLocked(); 587 resetStateLocked(null); 588 } else if (why == WindowManagerPolicy.OFF_BECAUSE_OF_TIMEOUT 589 || (why == WindowManagerPolicy.OFF_BECAUSE_OF_USER && !lockImmediately)) { 590 doKeyguardLaterLocked(); 591 } else if (why == WindowManagerPolicy.OFF_BECAUSE_OF_PROX_SENSOR) { 592 // Do not enable the keyguard if the prox sensor forced the screen off. 593 } else { 594 doKeyguardLocked(null); 595 } 596 } 597 } 598 599 private void doKeyguardLaterLocked() { 600 // if the screen turned off because of timeout or the user hit the power button 601 // and we don't need to lock immediately, set an alarm 602 // to enable it a little bit later (i.e, give the user a chance 603 // to turn the screen back on within a certain window without 604 // having to unlock the screen) 605 final ContentResolver cr = mContext.getContentResolver(); 606 607 // From DisplaySettings 608 long displayTimeout = Settings.System.getInt(cr, SCREEN_OFF_TIMEOUT, 609 KEYGUARD_DISPLAY_TIMEOUT_DELAY_DEFAULT); 610 611 // From SecuritySettings 612 final long lockAfterTimeout = Settings.Secure.getInt(cr, 613 Settings.Secure.LOCK_SCREEN_LOCK_AFTER_TIMEOUT, 614 KEYGUARD_LOCK_AFTER_DELAY_DEFAULT); 615 616 // From DevicePolicyAdmin 617 final long policyTimeout = mLockPatternUtils.getDevicePolicyManager() 618 .getMaximumTimeToLock(null, mLockPatternUtils.getCurrentUser()); 619 620 long timeout; 621 if (policyTimeout > 0) { 622 // policy in effect. Make sure we don't go beyond policy limit. 623 displayTimeout = Math.max(displayTimeout, 0); // ignore negative values 624 timeout = Math.min(policyTimeout - displayTimeout, lockAfterTimeout); 625 } else { 626 timeout = lockAfterTimeout; 627 } 628 629 if (timeout <= 0) { 630 // Lock now 631 mSuppressNextLockSound = true; 632 doKeyguardLocked(null); 633 } else { 634 // Lock in the future 635 long when = SystemClock.elapsedRealtime() + timeout; 636 Intent intent = new Intent(DELAYED_KEYGUARD_ACTION); 637 intent.putExtra("seq", mDelayedShowingSequence); 638 PendingIntent sender = PendingIntent.getBroadcast(mContext, 639 0, intent, PendingIntent.FLAG_CANCEL_CURRENT); 640 mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, when, sender); 641 if (DEBUG) Log.d(TAG, "setting alarm to turn off keyguard, seq = " 642 + mDelayedShowingSequence); 643 } 644 } 645 646 private void cancelDoKeyguardLaterLocked() { 647 mDelayedShowingSequence++; 648 } 649 650 /** 651 * Let's us know the screen was turned on. 652 */ 653 public void onScreenTurnedOn(IKeyguardShowCallback callback) { 654 synchronized (this) { 655 mScreenOn = true; 656 cancelDoKeyguardLaterLocked(); 657 if (DEBUG) Log.d(TAG, "onScreenTurnedOn, seq = " + mDelayedShowingSequence); 658 if (callback != null) { 659 notifyScreenOnLocked(callback); 660 } 661 } 662 maybeSendUserPresentBroadcast(); 663 } 664 665 private void maybeSendUserPresentBroadcast() { 666 if (mSystemReady && mLockPatternUtils.isLockScreenDisabled() 667 && mUserManager.getUsers(true).size() == 1) { 668 // Lock screen is disabled because the user has set the preference to "None". 669 // In this case, send out ACTION_USER_PRESENT here instead of in 670 // handleKeyguardDone() 671 sendUserPresentBroadcast(); 672 } 673 } 674 675 /** 676 * A dream started. We should lock after the usual screen-off lock timeout but only 677 * if there is a secure lock pattern. 678 */ 679 public void onDreamingStarted() { 680 synchronized (this) { 681 if (mScreenOn && mLockPatternUtils.isSecure()) { 682 doKeyguardLaterLocked(); 683 } 684 } 685 } 686 687 /** 688 * A dream stopped. 689 */ 690 public void onDreamingStopped() { 691 synchronized (this) { 692 if (mScreenOn) { 693 cancelDoKeyguardLaterLocked(); 694 } 695 } 696 } 697 698 /** 699 * Same semantics as {@link WindowManagerPolicy#enableKeyguard}; provide 700 * a way for external stuff to override normal keyguard behavior. For instance 701 * the phone app disables the keyguard when it receives incoming calls. 702 */ 703 public void setKeyguardEnabled(boolean enabled) { 704 synchronized (this) { 705 if (DEBUG) Log.d(TAG, "setKeyguardEnabled(" + enabled + ")"); 706 707 mExternallyEnabled = enabled; 708 709 if (!enabled && mShowing) { 710 if (mExitSecureCallback != null) { 711 if (DEBUG) Log.d(TAG, "in process of verifyUnlock request, ignoring"); 712 // we're in the process of handling a request to verify the user 713 // can get past the keyguard. ignore extraneous requests to disable / reenable 714 return; 715 } 716 717 // hiding keyguard that is showing, remember to reshow later 718 if (DEBUG) Log.d(TAG, "remembering to reshow, hiding keyguard, " 719 + "disabling status bar expansion"); 720 mNeedToReshowWhenReenabled = true; 721 hideLocked(); 722 } else if (enabled && mNeedToReshowWhenReenabled) { 723 // reenabled after previously hidden, reshow 724 if (DEBUG) Log.d(TAG, "previously hidden, reshowing, reenabling " 725 + "status bar expansion"); 726 mNeedToReshowWhenReenabled = false; 727 728 if (mExitSecureCallback != null) { 729 if (DEBUG) Log.d(TAG, "onKeyguardExitResult(false), resetting"); 730 try { 731 mExitSecureCallback.onKeyguardExitResult(false); 732 } catch (RemoteException e) { 733 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 734 } 735 mExitSecureCallback = null; 736 resetStateLocked(null); 737 } else { 738 showLocked(null); 739 740 // block until we know the keygaurd is done drawing (and post a message 741 // to unblock us after a timeout so we don't risk blocking too long 742 // and causing an ANR). 743 mWaitingUntilKeyguardVisible = true; 744 mHandler.sendEmptyMessageDelayed(KEYGUARD_DONE_DRAWING, KEYGUARD_DONE_DRAWING_TIMEOUT_MS); 745 if (DEBUG) Log.d(TAG, "waiting until mWaitingUntilKeyguardVisible is false"); 746 while (mWaitingUntilKeyguardVisible) { 747 try { 748 wait(); 749 } catch (InterruptedException e) { 750 Thread.currentThread().interrupt(); 751 } 752 } 753 if (DEBUG) Log.d(TAG, "done waiting for mWaitingUntilKeyguardVisible"); 754 } 755 } 756 } 757 } 758 759 /** 760 * @see android.app.KeyguardManager#exitKeyguardSecurely 761 */ 762 public void verifyUnlock(IKeyguardExitCallback callback) { 763 synchronized (this) { 764 if (DEBUG) Log.d(TAG, "verifyUnlock"); 765 if (!mUpdateMonitor.isDeviceProvisioned()) { 766 // don't allow this api when the device isn't provisioned 767 if (DEBUG) Log.d(TAG, "ignoring because device isn't provisioned"); 768 try { 769 callback.onKeyguardExitResult(false); 770 } catch (RemoteException e) { 771 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 772 } 773 } else if (mExternallyEnabled) { 774 // this only applies when the user has externally disabled the 775 // keyguard. this is unexpected and means the user is not 776 // using the api properly. 777 Log.w(TAG, "verifyUnlock called when not externally disabled"); 778 try { 779 callback.onKeyguardExitResult(false); 780 } catch (RemoteException e) { 781 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 782 } 783 } else if (mExitSecureCallback != null) { 784 // already in progress with someone else 785 try { 786 callback.onKeyguardExitResult(false); 787 } catch (RemoteException e) { 788 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 789 } 790 } else { 791 mExitSecureCallback = callback; 792 verifyUnlockLocked(); 793 } 794 } 795 } 796 797 /** 798 * Is the keyguard currently showing? 799 */ 800 public boolean isShowing() { 801 return mShowing; 802 } 803 804 /** 805 * Is the keyguard currently showing and not being force hidden? 806 */ 807 public boolean isShowingAndNotHidden() { 808 return mShowing && !mHidden; 809 } 810 811 /** 812 * Notify us when the keyguard is hidden by another window 813 */ 814 public void setHidden(boolean isHidden) { 815 if (DEBUG) Log.d(TAG, "setHidden " + isHidden); 816 mUpdateMonitor.sendKeyguardVisibilityChanged(!isHidden); 817 mHandler.removeMessages(SET_HIDDEN); 818 Message msg = mHandler.obtainMessage(SET_HIDDEN, (isHidden ? 1 : 0), 0); 819 mHandler.sendMessage(msg); 820 } 821 822 /** 823 * Handles SET_HIDDEN message sent by setHidden() 824 */ 825 private void handleSetHidden(boolean isHidden) { 826 synchronized (KeyguardViewMediator.this) { 827 if (mHidden != isHidden) { 828 mHidden = isHidden; 829 updateActivityLockScreenState(); 830 adjustStatusBarLocked(); 831 } 832 } 833 } 834 835 /** 836 * Used by PhoneWindowManager to enable the keyguard due to a user activity timeout. 837 * This must be safe to call from any thread and with any window manager locks held. 838 */ 839 public void doKeyguardTimeout(Bundle options) { 840 mHandler.removeMessages(KEYGUARD_TIMEOUT); 841 Message msg = mHandler.obtainMessage(KEYGUARD_TIMEOUT, options); 842 mHandler.sendMessage(msg); 843 } 844 845 /** 846 * Given the state of the keyguard, is the input restricted? 847 * Input is restricted when the keyguard is showing, or when the keyguard 848 * was suppressed by an app that disabled the keyguard or we haven't been provisioned yet. 849 */ 850 public boolean isInputRestricted() { 851 return mShowing || mNeedToReshowWhenReenabled || !mUpdateMonitor.isDeviceProvisioned(); 852 } 853 854 /** 855 * Enable the keyguard if the settings are appropriate. 856 */ 857 private void doKeyguardLocked(Bundle options) { 858 // if another app is disabling us, don't show 859 if (!mExternallyEnabled) { 860 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because externally disabled"); 861 862 // note: we *should* set mNeedToReshowWhenReenabled=true here, but that makes 863 // for an occasional ugly flicker in this situation: 864 // 1) receive a call with the screen on (no keyguard) or make a call 865 // 2) screen times out 866 // 3) user hits key to turn screen back on 867 // instead, we reenable the keyguard when we know the screen is off and the call 868 // ends (see the broadcast receiver below) 869 // TODO: clean this up when we have better support at the window manager level 870 // for apps that wish to be on top of the keyguard 871 return; 872 } 873 874 // if the keyguard is already showing, don't bother 875 if (mKeyguardViewManager.isShowing()) { 876 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because it is already showing"); 877 return; 878 } 879 880 // if the setup wizard hasn't run yet, don't show 881 final boolean requireSim = !SystemProperties.getBoolean("keyguard.no_require_sim", 882 false); 883 final boolean provisioned = mUpdateMonitor.isDeviceProvisioned(); 884 final IccCardConstants.State state = mUpdateMonitor.getSimState(); 885 final boolean lockedOrMissing = state.isPinLocked() 886 || ((state == IccCardConstants.State.ABSENT 887 || state == IccCardConstants.State.PERM_DISABLED) 888 && requireSim); 889 890 if (!lockedOrMissing && !provisioned) { 891 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because device isn't provisioned" 892 + " and the sim is not locked or missing"); 893 return; 894 } 895 896 if (mUserManager.getUsers(true).size() < 2 897 && mLockPatternUtils.isLockScreenDisabled() && !lockedOrMissing) { 898 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because lockscreen is off"); 899 return; 900 } 901 902 if (DEBUG) Log.d(TAG, "doKeyguard: showing the lock screen"); 903 showLocked(options); 904 } 905 906 /** 907 * Dismiss the keyguard through the security layers. 908 */ 909 public void dismiss() { 910 if (mShowing && !mHidden) { 911 mKeyguardViewManager.dismiss(); 912 } 913 } 914 915 /** 916 * Send message to keyguard telling it to reset its state. 917 * @param options options about how to show the keyguard 918 * @see #handleReset() 919 */ 920 private void resetStateLocked(Bundle options) { 921 if (DEBUG) Log.e(TAG, "resetStateLocked"); 922 Message msg = mHandler.obtainMessage(RESET, options); 923 mHandler.sendMessage(msg); 924 } 925 926 /** 927 * Send message to keyguard telling it to verify unlock 928 * @see #handleVerifyUnlock() 929 */ 930 private void verifyUnlockLocked() { 931 if (DEBUG) Log.d(TAG, "verifyUnlockLocked"); 932 mHandler.sendEmptyMessage(VERIFY_UNLOCK); 933 } 934 935 936 /** 937 * Send a message to keyguard telling it the screen just turned on. 938 * @see #onScreenTurnedOff(int) 939 * @see #handleNotifyScreenOff 940 */ 941 private void notifyScreenOffLocked() { 942 if (DEBUG) Log.d(TAG, "notifyScreenOffLocked"); 943 mHandler.sendEmptyMessage(NOTIFY_SCREEN_OFF); 944 } 945 946 /** 947 * Send a message to keyguard telling it the screen just turned on. 948 * @see #onScreenTurnedOn() 949 * @see #handleNotifyScreenOn 950 */ 951 private void notifyScreenOnLocked(IKeyguardShowCallback result) { 952 if (DEBUG) Log.d(TAG, "notifyScreenOnLocked"); 953 Message msg = mHandler.obtainMessage(NOTIFY_SCREEN_ON, result); 954 mHandler.sendMessage(msg); 955 } 956 957 /** 958 * Send message to keyguard telling it to show itself 959 * @see #handleShow() 960 */ 961 private void showLocked(Bundle options) { 962 if (DEBUG) Log.d(TAG, "showLocked"); 963 // ensure we stay awake until we are finished displaying the keyguard 964 mShowKeyguardWakeLock.acquire(); 965 Message msg = mHandler.obtainMessage(SHOW, options); 966 mHandler.sendMessage(msg); 967 } 968 969 /** 970 * Send message to keyguard telling it to hide itself 971 * @see #handleHide() 972 */ 973 private void hideLocked() { 974 if (DEBUG) Log.d(TAG, "hideLocked"); 975 Message msg = mHandler.obtainMessage(HIDE); 976 mHandler.sendMessage(msg); 977 } 978 979 public boolean isSecure() { 980 return mLockPatternUtils.isSecure() 981 || KeyguardUpdateMonitor.getInstance(mContext).isSimPinSecure(); 982 } 983 984 /** 985 * Update the newUserId. Call while holding WindowManagerService lock. 986 * NOTE: Should only be called by KeyguardViewMediator in response to the user id changing. 987 * 988 * @param newUserId The id of the incoming user. 989 */ 990 public void setCurrentUser(int newUserId) { 991 mLockPatternUtils.setCurrentUser(newUserId); 992 } 993 994 private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { 995 @Override 996 public void onReceive(Context context, Intent intent) { 997 if (DELAYED_KEYGUARD_ACTION.equals(intent.getAction())) { 998 final int sequence = intent.getIntExtra("seq", 0); 999 if (DEBUG) Log.d(TAG, "received DELAYED_KEYGUARD_ACTION with seq = " 1000 + sequence + ", mDelayedShowingSequence = " + mDelayedShowingSequence); 1001 synchronized (KeyguardViewMediator.this) { 1002 if (mDelayedShowingSequence == sequence) { 1003 // Don't play lockscreen SFX if the screen went off due to timeout. 1004 mSuppressNextLockSound = true; 1005 doKeyguardLocked(null); 1006 } 1007 } 1008 } 1009 } 1010 }; 1011 1012 public void keyguardDone(boolean authenticated, boolean wakeup) { 1013 mKeyguardDonePending = false; 1014 synchronized (this) { 1015 EventLog.writeEvent(70000, 2); 1016 if (DEBUG) Log.d(TAG, "keyguardDone(" + authenticated + ")"); 1017 Message msg = mHandler.obtainMessage(KEYGUARD_DONE, authenticated ? 1 : 0, 1018 wakeup ? 1 : 0); 1019 mHandler.sendMessage(msg); 1020 } 1021 } 1022 1023 /** 1024 * This handler will be associated with the policy thread, which will also 1025 * be the UI thread of the keyguard. Since the apis of the policy, and therefore 1026 * this class, can be called by other threads, any action that directly 1027 * interacts with the keyguard ui should be posted to this handler, rather 1028 * than called directly. 1029 */ 1030 private Handler mHandler = new Handler(Looper.myLooper(), null, true /*async*/) { 1031 @Override 1032 public void handleMessage(Message msg) { 1033 switch (msg.what) { 1034 case SHOW: 1035 handleShow((Bundle) msg.obj); 1036 return ; 1037 case HIDE: 1038 handleHide(); 1039 return ; 1040 case RESET: 1041 handleReset((Bundle) msg.obj); 1042 return ; 1043 case VERIFY_UNLOCK: 1044 handleVerifyUnlock(); 1045 return; 1046 case NOTIFY_SCREEN_OFF: 1047 handleNotifyScreenOff(); 1048 return; 1049 case NOTIFY_SCREEN_ON: 1050 handleNotifyScreenOn((IKeyguardShowCallback) msg.obj); 1051 return; 1052 case KEYGUARD_DONE: 1053 handleKeyguardDone(msg.arg1 != 0, msg.arg2 != 0); 1054 return; 1055 case KEYGUARD_DONE_DRAWING: 1056 handleKeyguardDoneDrawing(); 1057 return; 1058 case KEYGUARD_DONE_AUTHENTICATING: 1059 keyguardDone(true, true); 1060 return; 1061 case SET_HIDDEN: 1062 handleSetHidden(msg.arg1 != 0); 1063 break; 1064 case KEYGUARD_TIMEOUT: 1065 synchronized (KeyguardViewMediator.this) { 1066 doKeyguardLocked((Bundle) msg.obj); 1067 } 1068 break; 1069 case SHOW_ASSISTANT: 1070 handleShowAssistant(); 1071 break; 1072 } 1073 } 1074 }; 1075 1076 /** 1077 * @see #keyguardDone 1078 * @see #KEYGUARD_DONE 1079 */ 1080 private void handleKeyguardDone(boolean authenticated, boolean wakeup) { 1081 if (DEBUG) Log.d(TAG, "handleKeyguardDone"); 1082 1083 if (authenticated) { 1084 mUpdateMonitor.clearFailedUnlockAttempts(); 1085 } 1086 1087 if (mExitSecureCallback != null) { 1088 try { 1089 mExitSecureCallback.onKeyguardExitResult(authenticated); 1090 } catch (RemoteException e) { 1091 Slog.w(TAG, "Failed to call onKeyguardExitResult(" + authenticated + ")", e); 1092 } 1093 1094 mExitSecureCallback = null; 1095 1096 if (authenticated) { 1097 // after succesfully exiting securely, no need to reshow 1098 // the keyguard when they've released the lock 1099 mExternallyEnabled = true; 1100 mNeedToReshowWhenReenabled = false; 1101 } 1102 } 1103 1104 handleHide(); 1105 sendUserPresentBroadcast(); 1106 } 1107 1108 private void sendUserPresentBroadcast() { 1109 final UserHandle currentUser = new UserHandle(mLockPatternUtils.getCurrentUser()); 1110 mContext.sendBroadcastAsUser(USER_PRESENT_INTENT, currentUser); 1111 } 1112 1113 /** 1114 * @see #keyguardDoneDrawing 1115 * @see #KEYGUARD_DONE_DRAWING 1116 */ 1117 private void handleKeyguardDoneDrawing() { 1118 synchronized(this) { 1119 if (DEBUG) Log.d(TAG, "handleKeyguardDoneDrawing"); 1120 if (mWaitingUntilKeyguardVisible) { 1121 if (DEBUG) Log.d(TAG, "handleKeyguardDoneDrawing: notifying mWaitingUntilKeyguardVisible"); 1122 mWaitingUntilKeyguardVisible = false; 1123 notifyAll(); 1124 1125 // there will usually be two of these sent, one as a timeout, and one 1126 // as a result of the callback, so remove any remaining messages from 1127 // the queue 1128 mHandler.removeMessages(KEYGUARD_DONE_DRAWING); 1129 } 1130 } 1131 } 1132 1133 private void playSounds(boolean locked) { 1134 // User feedback for keyguard. 1135 1136 if (mSuppressNextLockSound) { 1137 mSuppressNextLockSound = false; 1138 return; 1139 } 1140 1141 final ContentResolver cr = mContext.getContentResolver(); 1142 if (Settings.System.getInt(cr, Settings.System.LOCKSCREEN_SOUNDS_ENABLED, 1) == 1) { 1143 final int whichSound = locked 1144 ? mLockSoundId 1145 : mUnlockSoundId; 1146 mLockSounds.stop(mLockSoundStreamId); 1147 // Init mAudioManager 1148 if (mAudioManager == null) { 1149 mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 1150 if (mAudioManager == null) return; 1151 mMasterStreamType = mAudioManager.getMasterStreamType(); 1152 } 1153 // If the stream is muted, don't play the sound 1154 if (mAudioManager.isStreamMute(mMasterStreamType)) return; 1155 1156 mLockSoundStreamId = mLockSounds.play(whichSound, 1157 mLockSoundVolume, mLockSoundVolume, 1/*priortiy*/, 0/*loop*/, 1.0f/*rate*/); 1158 } 1159 } 1160 1161 private void updateActivityLockScreenState() { 1162 try { 1163 ActivityManagerNative.getDefault().setLockScreenShown( 1164 mShowing && !mHidden); 1165 } catch (RemoteException e) { 1166 } 1167 } 1168 1169 /** 1170 * Handle message sent by {@link #showLocked}. 1171 * @see #SHOW 1172 */ 1173 private void handleShow(Bundle options) { 1174 synchronized (KeyguardViewMediator.this) { 1175 if (!mSystemReady) { 1176 if (DEBUG) Log.d(TAG, "ignoring handleShow because system is not ready."); 1177 return; 1178 } else { 1179 if (DEBUG) Log.d(TAG, "handleShow"); 1180 } 1181 1182 mKeyguardViewManager.show(options); 1183 mShowing = true; 1184 mKeyguardDonePending = false; 1185 updateActivityLockScreenState(); 1186 adjustStatusBarLocked(); 1187 userActivity(); 1188 try { 1189 ActivityManagerNative.getDefault().closeSystemDialogs("lock"); 1190 } catch (RemoteException e) { 1191 } 1192 1193 // Do this at the end to not slow down display of the keyguard. 1194 playSounds(true); 1195 1196 mShowKeyguardWakeLock.release(); 1197 } 1198 } 1199 1200 /** 1201 * Handle message sent by {@link #hideLocked()} 1202 * @see #HIDE 1203 */ 1204 private void handleHide() { 1205 synchronized (KeyguardViewMediator.this) { 1206 if (DEBUG) Log.d(TAG, "handleHide"); 1207 1208 // only play "unlock" noises if not on a call (since the incall UI 1209 // disables the keyguard) 1210 if (TelephonyManager.EXTRA_STATE_IDLE.equals(mPhoneState)) { 1211 playSounds(false); 1212 } 1213 1214 mKeyguardViewManager.hide(); 1215 mShowing = false; 1216 mKeyguardDonePending = false; 1217 updateActivityLockScreenState(); 1218 adjustStatusBarLocked(); 1219 } 1220 } 1221 1222 private void adjustStatusBarLocked() { 1223 if (mStatusBarManager == null) { 1224 mStatusBarManager = (StatusBarManager) 1225 mContext.getSystemService(Context.STATUS_BAR_SERVICE); 1226 } 1227 if (mStatusBarManager == null) { 1228 Log.w(TAG, "Could not get status bar manager"); 1229 } else { 1230 if (mShowLockIcon) { 1231 // Give feedback to user when secure keyguard is active and engaged 1232 if (mShowing && isSecure()) { 1233 if (!mShowingLockIcon) { 1234 String contentDescription = mContext.getString( 1235 com.android.internal.R.string.status_bar_device_locked); 1236 mStatusBarManager.setIcon("secure", 1237 com.android.internal.R.drawable.stat_sys_secure, 0, 1238 contentDescription); 1239 mShowingLockIcon = true; 1240 } 1241 } else { 1242 if (mShowingLockIcon) { 1243 mStatusBarManager.removeIcon("secure"); 1244 mShowingLockIcon = false; 1245 } 1246 } 1247 } 1248 1249 // Disable aspects of the system/status/navigation bars that must not be re-enabled by 1250 // windows that appear on top, ever 1251 int flags = StatusBarManager.DISABLE_NONE; 1252 if (mShowing) { 1253 // Permanently disable components not available when keyguard is enabled 1254 // (like recents). Temporary enable/disable (e.g. the "back" button) are 1255 // done in KeyguardHostView. 1256 flags |= StatusBarManager.DISABLE_RECENT; 1257 if (isSecure() || !ENABLE_INSECURE_STATUS_BAR_EXPAND) { 1258 // showing secure lockscreen; disable expanding. 1259 flags |= StatusBarManager.DISABLE_EXPAND; 1260 } 1261 if (isSecure()) { 1262 // showing secure lockscreen; disable ticker. 1263 flags |= StatusBarManager.DISABLE_NOTIFICATION_TICKER; 1264 } 1265 if (!isAssistantAvailable()) { 1266 flags |= StatusBarManager.DISABLE_SEARCH; 1267 } 1268 } 1269 1270 if (DEBUG) { 1271 Log.d(TAG, "adjustStatusBarLocked: mShowing=" + mShowing + " mHidden=" + mHidden 1272 + " isSecure=" + isSecure() + " --> flags=0x" + Integer.toHexString(flags)); 1273 } 1274 1275 if (!(mContext instanceof Activity)) { 1276 mStatusBarManager.disable(flags); 1277 } 1278 } 1279 } 1280 1281 /** 1282 * Handle message sent by {@link #resetStateLocked(Bundle)} 1283 * @see #RESET 1284 */ 1285 private void handleReset(Bundle options) { 1286 if (options == null) { 1287 options = new Bundle(); 1288 } 1289 options.putBoolean(KeyguardViewManager.IS_SWITCHING_USER, mSwitchingUser); 1290 synchronized (KeyguardViewMediator.this) { 1291 if (DEBUG) Log.d(TAG, "handleReset"); 1292 mKeyguardViewManager.reset(options); 1293 } 1294 } 1295 1296 /** 1297 * Handle message sent by {@link #verifyUnlock} 1298 * @see #VERIFY_UNLOCK 1299 */ 1300 private void handleVerifyUnlock() { 1301 synchronized (KeyguardViewMediator.this) { 1302 if (DEBUG) Log.d(TAG, "handleVerifyUnlock"); 1303 mKeyguardViewManager.verifyUnlock(); 1304 mShowing = true; 1305 updateActivityLockScreenState(); 1306 } 1307 } 1308 1309 /** 1310 * Handle message sent by {@link #notifyScreenOffLocked()} 1311 * @see #NOTIFY_SCREEN_OFF 1312 */ 1313 private void handleNotifyScreenOff() { 1314 synchronized (KeyguardViewMediator.this) { 1315 if (DEBUG) Log.d(TAG, "handleNotifyScreenOff"); 1316 mKeyguardViewManager.onScreenTurnedOff(); 1317 } 1318 } 1319 1320 /** 1321 * Handle message sent by {@link #notifyScreenOnLocked()} 1322 * @see #NOTIFY_SCREEN_ON 1323 */ 1324 private void handleNotifyScreenOn(IKeyguardShowCallback callback) { 1325 synchronized (KeyguardViewMediator.this) { 1326 if (DEBUG) Log.d(TAG, "handleNotifyScreenOn"); 1327 mKeyguardViewManager.onScreenTurnedOn(callback); 1328 } 1329 } 1330 1331 public boolean isDismissable() { 1332 return mKeyguardDonePending || !isSecure(); 1333 } 1334 1335 public void showAssistant() { 1336 Message msg = mHandler.obtainMessage(SHOW_ASSISTANT); 1337 mHandler.sendMessage(msg); 1338 } 1339 1340 public void handleShowAssistant() { 1341 mKeyguardViewManager.showAssistant(); 1342 } 1343 1344 private boolean isAssistantAvailable() { 1345 return mSearchManager != null 1346 && mSearchManager.getAssistIntent(mContext, false, UserHandle.USER_CURRENT) != null; 1347 } 1348 1349 public static MultiUserAvatarCache getAvatarCache() { 1350 return sMultiUserAvatarCache; 1351 } 1352} 1353