KeyguardViewMediator.java revision 6001379bff6ed80341a7e23480b6e3addb96395e
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 android.graphics.Bitmap; 20import com.android.internal.policy.IKeyguardExitCallback; 21import com.android.internal.policy.IKeyguardShowCallback; 22import static android.provider.Settings.System.SCREEN_OFF_TIMEOUT; 23 24import android.app.Activity; 25import android.app.ActivityManagerNative; 26import android.app.AlarmManager; 27import android.app.PendingIntent; 28import android.app.SearchManager; 29import android.app.StatusBarManager; 30import android.content.BroadcastReceiver; 31import android.content.ContentResolver; 32import android.content.Context; 33import android.content.Intent; 34import android.content.IntentFilter; 35import android.media.AudioManager; 36import android.media.SoundPool; 37import android.os.Bundle; 38import android.os.Handler; 39import android.os.Looper; 40import android.os.Message; 41import android.os.PowerManager; 42import android.os.RemoteException; 43import android.os.SystemClock; 44import android.os.SystemProperties; 45import android.os.UserHandle; 46import android.os.UserManager; 47import android.provider.Settings; 48import android.telephony.TelephonyManager; 49import android.util.EventLog; 50import android.util.Log; 51import android.util.Slog; 52import android.view.KeyEvent; 53import android.view.MotionEvent; 54import android.view.WindowManager; 55import android.view.WindowManagerPolicy; 56 57import com.android.internal.telephony.IccCardConstants; 58import com.android.internal.widget.LockPatternUtils; 59 60 61/** 62 * Mediates requests related to the keyguard. This includes queries about the 63 * state of the keyguard, power management events that effect whether the keyguard 64 * should be shown or reset, callbacks to the phone window manager to notify 65 * it of when the keyguard is showing, and events from the keyguard view itself 66 * stating that the keyguard was succesfully unlocked. 67 * 68 * Note that the keyguard view is shown when the screen is off (as appropriate) 69 * so that once the screen comes on, it will be ready immediately. 70 * 71 * Example queries about the keyguard: 72 * - is {movement, key} one that should wake the keygaurd? 73 * - is the keyguard showing? 74 * - are input events restricted due to the state of the keyguard? 75 * 76 * Callbacks to the phone window manager: 77 * - the keyguard is showing 78 * 79 * Example external events that translate to keyguard view changes: 80 * - screen turned off -> reset the keyguard, and show it so it will be ready 81 * next time the screen turns on 82 * - keyboard is slid open -> if the keyguard is not secure, hide it 83 * 84 * Events from the keyguard view: 85 * - user succesfully unlocked keyguard -> hide keyguard view, and no longer 86 * restrict input events. 87 * 88 * Note: in addition to normal power managment events that effect the state of 89 * whether the keyguard should be showing, external apps and services may request 90 * that the keyguard be disabled via {@link #setKeyguardEnabled(boolean)}. When 91 * false, this will override all other conditions for turning on the keyguard. 92 * 93 * Threading and synchronization: 94 * This class is created by the initialization routine of the {@link WindowManagerPolicy}, 95 * and runs on its thread. The keyguard UI is created from that thread in the 96 * constructor of this class. The apis may be called from other threads, including the 97 * {@link com.android.server.input.InputManagerService}'s and {@link android.view.WindowManager}'s. 98 * Therefore, methods on this class are synchronized, and any action that is pointed 99 * directly to the keyguard UI is posted to a {@link Handler} to ensure it is taken on the UI 100 * thread of the keyguard. 101 */ 102public class KeyguardViewMediator { 103 private static final int KEYGUARD_DISPLAY_TIMEOUT_DELAY_DEFAULT = 30000; 104 final static boolean DEBUG = false; 105 private final static boolean DBG_WAKE = false; 106 107 private final static String TAG = "KeyguardViewMediator"; 108 109 private static final String DELAYED_KEYGUARD_ACTION = 110 "com.android.internal.policy.impl.PhoneWindowManager.DELAYED_KEYGUARD"; 111 112 // used for handler messages 113 private static final int SHOW = 2; 114 private static final int HIDE = 3; 115 private static final int RESET = 4; 116 private static final int VERIFY_UNLOCK = 5; 117 private static final int NOTIFY_SCREEN_OFF = 6; 118 private static final int NOTIFY_SCREEN_ON = 7; 119 private static final int KEYGUARD_DONE = 9; 120 private static final int KEYGUARD_DONE_DRAWING = 10; 121 private static final int KEYGUARD_DONE_AUTHENTICATING = 11; 122 private static final int SET_HIDDEN = 12; 123 private static final int KEYGUARD_TIMEOUT = 13; 124 private static final int SHOW_ASSISTANT = 14; 125 private static final int DISPATCH_EVENT = 15; 126 private static final int LAUNCH_CAMERA = 16; 127 private static final int DISMISS = 17; 128 129 /** 130 * The default amount of time we stay awake (used for all key input) 131 */ 132 protected static final int AWAKE_INTERVAL_DEFAULT_MS = 10000; 133 134 /** 135 * How long to wait after the screen turns off due to timeout before 136 * turning on the keyguard (i.e, the user has this much time to turn 137 * the screen back on without having to face the keyguard). 138 */ 139 private static final int KEYGUARD_LOCK_AFTER_DELAY_DEFAULT = 5000; 140 141 /** 142 * How long we'll wait for the {@link ViewMediatorCallback#keyguardDoneDrawing()} 143 * callback before unblocking a call to {@link #setKeyguardEnabled(boolean)} 144 * that is reenabling the keyguard. 145 */ 146 private static final int KEYGUARD_DONE_DRAWING_TIMEOUT_MS = 2000; 147 148 /** 149 * Allow the user to expand the status bar when the keyguard is engaged 150 * (without a pattern or password). 151 */ 152 private static final boolean ENABLE_INSECURE_STATUS_BAR_EXPAND = true; 153 154 /** The stream type that the lock sounds are tied to. */ 155 private int mMasterStreamType; 156 157 private Context mContext; 158 private AlarmManager mAlarmManager; 159 private AudioManager mAudioManager; 160 private StatusBarManager mStatusBarManager; 161 private boolean mSwitchingUser; 162 163 private boolean mSystemReady; 164 165 // Whether the next call to playSounds() should be skipped. Defaults to 166 // true because the first lock (on boot) should be silent. 167 private boolean mSuppressNextLockSound = true; 168 169 170 /** High level access to the power manager for WakeLocks */ 171 private PowerManager mPM; 172 173 /** UserManager for querying number of users */ 174 private UserManager mUserManager; 175 176 /** SearchManager for determining whether or not search assistant is available */ 177 private SearchManager mSearchManager; 178 179 /** 180 * Used to keep the device awake while to ensure the keyguard finishes opening before 181 * we sleep. 182 */ 183 private PowerManager.WakeLock mShowKeyguardWakeLock; 184 185 private KeyguardViewManager mKeyguardViewManager; 186 187 // these are protected by synchronized (this) 188 189 /** 190 * External apps (like the phone app) can tell us to disable the keygaurd. 191 */ 192 private boolean mExternallyEnabled = true; 193 194 /** 195 * Remember if an external call to {@link #setKeyguardEnabled} with value 196 * false caused us to hide the keyguard, so that we need to reshow it once 197 * the keygaurd is reenabled with another call with value true. 198 */ 199 private boolean mNeedToReshowWhenReenabled = false; 200 201 // cached value of whether we are showing (need to know this to quickly 202 // answer whether the input should be restricted) 203 private boolean mShowing = false; 204 205 // true if the keyguard is hidden by another window 206 private boolean mHidden = false; 207 208 /** 209 * Helps remember whether the screen has turned on since the last time 210 * it turned off due to timeout. see {@link #onScreenTurnedOff(int)} 211 */ 212 private int mDelayedShowingSequence; 213 214 /** 215 * If the user has disabled the keyguard, then requests to exit, this is 216 * how we'll ultimately let them know whether it was successful. We use this 217 * var being non-null as an indicator that there is an in progress request. 218 */ 219 private IKeyguardExitCallback mExitSecureCallback; 220 221 // the properties of the keyguard 222 223 private KeyguardUpdateMonitor mUpdateMonitor; 224 225 private boolean mScreenOn; 226 227 // last known state of the cellular connection 228 private String mPhoneState = TelephonyManager.EXTRA_STATE_IDLE; 229 230 /** 231 * we send this intent when the keyguard is dismissed. 232 */ 233 private static final Intent USER_PRESENT_INTENT = new Intent(Intent.ACTION_USER_PRESENT) 234 .addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING 235 | Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 236 237 /** 238 * {@link #setKeyguardEnabled} waits on this condition when it reenables 239 * the keyguard. 240 */ 241 private boolean mWaitingUntilKeyguardVisible = false; 242 private LockPatternUtils mLockPatternUtils; 243 private boolean mKeyguardDonePending = false; 244 245 private SoundPool mLockSounds; 246 private int mLockSoundId; 247 private int mUnlockSoundId; 248 private int mLockSoundStreamId; 249 250 /** 251 * The volume applied to the lock/unlock sounds. 252 */ 253 private final float mLockSoundVolume; 254 255 /** 256 * Cache of avatar drawables, for use by KeyguardMultiUserAvatar. 257 */ 258 private static MultiUserAvatarCache sMultiUserAvatarCache = new MultiUserAvatarCache(); 259 260 /** 261 * The callback used by the keyguard view to tell the {@link KeyguardViewMediator} 262 * various things. 263 */ 264 public interface ViewMediatorCallback { 265 /** 266 * Reports user activity and requests that the screen stay on. 267 */ 268 void userActivity(); 269 270 /** 271 * Reports user activity and requests that the screen stay on for at least 272 * the specified amount of time. 273 * @param millis The amount of time in millis. This value is currently ignored. 274 */ 275 void userActivity(long millis); 276 277 /** 278 * Report that the keyguard is done. 279 * @param authenticated Whether the user securely got past the keyguard. 280 * the only reason for this to be false is if the keyguard was instructed 281 * to appear temporarily to verify the user is supposed to get past the 282 * keyguard, and the user fails to do so. 283 */ 284 void keyguardDone(boolean authenticated); 285 286 /** 287 * Report that the keyguard is done drawing. 288 */ 289 void keyguardDoneDrawing(); 290 291 /** 292 * Tell ViewMediator that the current view needs IME input 293 * @param needsInput 294 */ 295 void setNeedsInput(boolean needsInput); 296 297 /** 298 * Tell view mediator that the keyguard view's desired user activity timeout 299 * has changed and needs to be reapplied to the window. 300 */ 301 void onUserActivityTimeoutChanged(); 302 303 /** 304 * Report that the keyguard is dismissable, pending the next keyguardDone call. 305 */ 306 void keyguardDonePending(); 307 } 308 309 KeyguardUpdateMonitorCallback mUpdateCallback = new KeyguardUpdateMonitorCallback() { 310 311 @Override 312 public void onUserSwitching(int userId) { 313 // Note that the mLockPatternUtils user has already been updated from setCurrentUser. 314 // We need to force a reset of the views, since lockNow (called by 315 // ActivityManagerService) will not reconstruct the keyguard if it is already showing. 316 synchronized (KeyguardViewMediator.this) { 317 mSwitchingUser = true; 318 resetStateLocked(null); 319 adjustStatusBarLocked(); 320 // When we switch users we want to bring the new user to the biometric unlock even 321 // if the current user has gone to the backup. 322 KeyguardUpdateMonitor.getInstance(mContext).setAlternateUnlockEnabled(true); 323 } 324 } 325 326 @Override 327 public void onUserSwitchComplete(int userId) { 328 mSwitchingUser = false; 329 } 330 331 @Override 332 public void onUserRemoved(int userId) { 333 mLockPatternUtils.removeUser(userId); 334 sMultiUserAvatarCache.clear(userId); 335 } 336 337 @Override 338 public void onUserInfoChanged(int userId) { 339 sMultiUserAvatarCache.clear(userId); 340 } 341 342 @Override 343 void onPhoneStateChanged(int phoneState) { 344 synchronized (KeyguardViewMediator.this) { 345 if (TelephonyManager.CALL_STATE_IDLE == phoneState // call ending 346 && !mScreenOn // screen off 347 && mExternallyEnabled) { // not disabled by any app 348 349 // note: this is a way to gracefully reenable the keyguard when the call 350 // ends and the screen is off without always reenabling the keyguard 351 // each time the screen turns off while in call (and having an occasional ugly 352 // flicker while turning back on the screen and disabling the keyguard again). 353 if (DEBUG) Log.d(TAG, "screen is off and call ended, let's make sure the " 354 + "keyguard is showing"); 355 doKeyguardLocked(null); 356 } 357 } 358 }; 359 360 @Override 361 public void onClockVisibilityChanged() { 362 adjustStatusBarLocked(); 363 } 364 365 @Override 366 public void onDeviceProvisioned() { 367 sendUserPresentBroadcast(); 368 } 369 370 @Override 371 public void onSimStateChanged(IccCardConstants.State simState) { 372 if (DEBUG) Log.d(TAG, "onSimStateChanged: " + simState); 373 374 switch (simState) { 375 case NOT_READY: 376 case ABSENT: 377 // only force lock screen in case of missing sim if user hasn't 378 // gone through setup wizard 379 synchronized (this) { 380 if (!mUpdateMonitor.isDeviceProvisioned()) { 381 if (!isShowing()) { 382 if (DEBUG) Log.d(TAG, "ICC_ABSENT isn't showing," 383 + " we need to show the keyguard since the " 384 + "device isn't provisioned yet."); 385 doKeyguardLocked(null); 386 } else { 387 resetStateLocked(null); 388 } 389 } 390 } 391 break; 392 case PIN_REQUIRED: 393 case PUK_REQUIRED: 394 synchronized (this) { 395 if (!isShowing()) { 396 if (DEBUG) Log.d(TAG, "INTENT_VALUE_ICC_LOCKED and keygaurd isn't " 397 + "showing; need to show keyguard so user can enter sim pin"); 398 doKeyguardLocked(null); 399 } else { 400 resetStateLocked(null); 401 } 402 } 403 break; 404 case PERM_DISABLED: 405 synchronized (this) { 406 if (!isShowing()) { 407 if (DEBUG) Log.d(TAG, "PERM_DISABLED and " 408 + "keygaurd isn't showing."); 409 doKeyguardLocked(null); 410 } else { 411 if (DEBUG) Log.d(TAG, "PERM_DISABLED, resetStateLocked to" 412 + "show permanently disabled message in lockscreen."); 413 resetStateLocked(null); 414 } 415 } 416 break; 417 case READY: 418 synchronized (this) { 419 if (isShowing()) { 420 resetStateLocked(null); 421 } 422 } 423 break; 424 } 425 } 426 427 }; 428 429 ViewMediatorCallback mViewMediatorCallback = new ViewMediatorCallback() { 430 public void userActivity() { 431 KeyguardViewMediator.this.userActivity(); 432 } 433 434 public void userActivity(long holdMs) { 435 KeyguardViewMediator.this.userActivity(holdMs); 436 } 437 438 public void keyguardDone(boolean authenticated) { 439 KeyguardViewMediator.this.keyguardDone(authenticated, true); 440 } 441 442 public void keyguardDoneDrawing() { 443 mHandler.sendEmptyMessage(KEYGUARD_DONE_DRAWING); 444 } 445 446 @Override 447 public void setNeedsInput(boolean needsInput) { 448 mKeyguardViewManager.setNeedsInput(needsInput); 449 } 450 451 @Override 452 public void onUserActivityTimeoutChanged() { 453 mKeyguardViewManager.updateUserActivityTimeout(); 454 } 455 456 @Override 457 public void keyguardDonePending() { 458 mKeyguardDonePending = true; 459 } 460 }; 461 462 private void userActivity() { 463 userActivity(AWAKE_INTERVAL_DEFAULT_MS); 464 } 465 466 public void userActivity(long holdMs) { 467 // We ignore the hold time. Eventually we should remove it. 468 // Instead, the keyguard window has an explicit user activity timeout set on it. 469 mPM.userActivity(SystemClock.uptimeMillis(), false); 470 } 471 472 /** 473 * Construct a KeyguardViewMediator 474 * @param context 475 * @param lockPatternUtils optional mock interface for LockPatternUtils 476 */ 477 public KeyguardViewMediator(Context context, LockPatternUtils lockPatternUtils) { 478 mContext = context; 479 mPM = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 480 mUserManager = (UserManager) mContext.getSystemService(Context.USER_SERVICE); 481 mShowKeyguardWakeLock = mPM.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "show keyguard"); 482 mShowKeyguardWakeLock.setReferenceCounted(false); 483 484 mContext.registerReceiver(mBroadcastReceiver, new IntentFilter(DELAYED_KEYGUARD_ACTION)); 485 486 mAlarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 487 488 mUpdateMonitor = KeyguardUpdateMonitor.getInstance(context); 489 490 mLockPatternUtils = lockPatternUtils != null 491 ? lockPatternUtils : new LockPatternUtils(mContext); 492 mLockPatternUtils.setCurrentUser(UserHandle.USER_OWNER); 493 494 WindowManager wm = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE); 495 496 mKeyguardViewManager = new KeyguardViewManager(context, wm, mViewMediatorCallback, 497 mLockPatternUtils); 498 499 final ContentResolver cr = mContext.getContentResolver(); 500 501 mScreenOn = mPM.isScreenOn(); 502 503 mLockSounds = new SoundPool(1, AudioManager.STREAM_SYSTEM, 0); 504 String soundPath = Settings.Global.getString(cr, Settings.Global.LOCK_SOUND); 505 if (soundPath != null) { 506 mLockSoundId = mLockSounds.load(soundPath, 1); 507 } 508 if (soundPath == null || mLockSoundId == 0) { 509 Log.w(TAG, "failed to load lock sound from " + soundPath); 510 } 511 soundPath = Settings.Global.getString(cr, Settings.Global.UNLOCK_SOUND); 512 if (soundPath != null) { 513 mUnlockSoundId = mLockSounds.load(soundPath, 1); 514 } 515 if (soundPath == null || mUnlockSoundId == 0) { 516 Log.w(TAG, "failed to load unlock sound from " + soundPath); 517 } 518 int lockSoundDefaultAttenuation = context.getResources().getInteger( 519 com.android.internal.R.integer.config_lockSoundVolumeDb); 520 mLockSoundVolume = (float)Math.pow(10, (float)lockSoundDefaultAttenuation/20); 521 } 522 523 /** 524 * Let us know that the system is ready after startup. 525 */ 526 public void onSystemReady() { 527 mSearchManager = (SearchManager) mContext.getSystemService(Context.SEARCH_SERVICE); 528 synchronized (this) { 529 if (DEBUG) Log.d(TAG, "onSystemReady"); 530 mSystemReady = true; 531 mUpdateMonitor.registerCallback(mUpdateCallback); 532 533 // Send boot completed message if it hasn't already been sent. 534 mUpdateMonitor.dispatchBootCompleted(); 535 536 // Suppress biometric unlock right after boot until things have settled if it is the 537 // selected security method, otherwise unsuppress it. It must be unsuppressed if it is 538 // not the selected security method for the following reason: if the user starts 539 // without a screen lock selected, the biometric unlock would be suppressed the first 540 // time they try to use it. 541 // 542 // Note that the biometric unlock will still not show if it is not the selected method. 543 // Calling setAlternateUnlockEnabled(true) simply says don't suppress it if it is the 544 // selected method. 545 if (mLockPatternUtils.usingBiometricWeak() 546 && mLockPatternUtils.isBiometricWeakInstalled()) { 547 if (DEBUG) Log.d(TAG, "suppressing biometric unlock during boot"); 548 mUpdateMonitor.setAlternateUnlockEnabled(false); 549 } else { 550 mUpdateMonitor.setAlternateUnlockEnabled(true); 551 } 552 553 doKeyguardLocked(null); 554 } 555 // Most services aren't available until the system reaches the ready state, so we 556 // send it here when the device first boots. 557 maybeSendUserPresentBroadcast(); 558 } 559 560 /** 561 * Called to let us know the screen was turned off. 562 * @param why either {@link WindowManagerPolicy#OFF_BECAUSE_OF_USER}, 563 * {@link WindowManagerPolicy#OFF_BECAUSE_OF_TIMEOUT} or 564 * {@link WindowManagerPolicy#OFF_BECAUSE_OF_PROX_SENSOR}. 565 */ 566 public void onScreenTurnedOff(int why) { 567 synchronized (this) { 568 mScreenOn = false; 569 if (DEBUG) Log.d(TAG, "onScreenTurnedOff(" + why + ")"); 570 571 mKeyguardDonePending = false; 572 573 // Lock immediately based on setting if secure (user has a pin/pattern/password). 574 // This also "locks" the device when not secure to provide easy access to the 575 // camera while preventing unwanted input. 576 final boolean lockImmediately = 577 mLockPatternUtils.getPowerButtonInstantlyLocks() || !mLockPatternUtils.isSecure(); 578 579 if (mExitSecureCallback != null) { 580 if (DEBUG) Log.d(TAG, "pending exit secure callback cancelled"); 581 try { 582 mExitSecureCallback.onKeyguardExitResult(false); 583 } catch (RemoteException e) { 584 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 585 } 586 mExitSecureCallback = null; 587 if (!mExternallyEnabled) { 588 hideLocked(); 589 } 590 } else if (mShowing) { 591 notifyScreenOffLocked(); 592 resetStateLocked(null); 593 } else if (why == WindowManagerPolicy.OFF_BECAUSE_OF_TIMEOUT 594 || (why == WindowManagerPolicy.OFF_BECAUSE_OF_USER && !lockImmediately)) { 595 doKeyguardLaterLocked(); 596 } else if (why == WindowManagerPolicy.OFF_BECAUSE_OF_PROX_SENSOR) { 597 // Do not enable the keyguard if the prox sensor forced the screen off. 598 } else { 599 doKeyguardLocked(null); 600 } 601 } 602 } 603 604 private void doKeyguardLaterLocked() { 605 // if the screen turned off because of timeout or the user hit the power button 606 // and we don't need to lock immediately, set an alarm 607 // to enable it a little bit later (i.e, give the user a chance 608 // to turn the screen back on within a certain window without 609 // having to unlock the screen) 610 final ContentResolver cr = mContext.getContentResolver(); 611 612 // From DisplaySettings 613 long displayTimeout = Settings.System.getInt(cr, SCREEN_OFF_TIMEOUT, 614 KEYGUARD_DISPLAY_TIMEOUT_DELAY_DEFAULT); 615 616 // From SecuritySettings 617 final long lockAfterTimeout = Settings.Secure.getInt(cr, 618 Settings.Secure.LOCK_SCREEN_LOCK_AFTER_TIMEOUT, 619 KEYGUARD_LOCK_AFTER_DELAY_DEFAULT); 620 621 // From DevicePolicyAdmin 622 final long policyTimeout = mLockPatternUtils.getDevicePolicyManager() 623 .getMaximumTimeToLock(null, mLockPatternUtils.getCurrentUser()); 624 625 long timeout; 626 if (policyTimeout > 0) { 627 // policy in effect. Make sure we don't go beyond policy limit. 628 displayTimeout = Math.max(displayTimeout, 0); // ignore negative values 629 timeout = Math.min(policyTimeout - displayTimeout, lockAfterTimeout); 630 } else { 631 timeout = lockAfterTimeout; 632 } 633 634 if (timeout <= 0) { 635 // Lock now 636 mSuppressNextLockSound = true; 637 doKeyguardLocked(null); 638 } else { 639 // Lock in the future 640 long when = SystemClock.elapsedRealtime() + timeout; 641 Intent intent = new Intent(DELAYED_KEYGUARD_ACTION); 642 intent.putExtra("seq", mDelayedShowingSequence); 643 PendingIntent sender = PendingIntent.getBroadcast(mContext, 644 0, intent, PendingIntent.FLAG_CANCEL_CURRENT); 645 mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, when, sender); 646 if (DEBUG) Log.d(TAG, "setting alarm to turn off keyguard, seq = " 647 + mDelayedShowingSequence); 648 } 649 } 650 651 private void cancelDoKeyguardLaterLocked() { 652 mDelayedShowingSequence++; 653 } 654 655 /** 656 * Let's us know the screen was turned on. 657 */ 658 public void onScreenTurnedOn(IKeyguardShowCallback callback) { 659 synchronized (this) { 660 mScreenOn = true; 661 cancelDoKeyguardLaterLocked(); 662 if (DEBUG) Log.d(TAG, "onScreenTurnedOn, seq = " + mDelayedShowingSequence); 663 if (callback != null) { 664 notifyScreenOnLocked(callback); 665 } 666 } 667 maybeSendUserPresentBroadcast(); 668 } 669 670 private void maybeSendUserPresentBroadcast() { 671 if (mSystemReady && mLockPatternUtils.isLockScreenDisabled() 672 && mUserManager.getUsers(true).size() == 1) { 673 // Lock screen is disabled because the user has set the preference to "None". 674 // In this case, send out ACTION_USER_PRESENT here instead of in 675 // handleKeyguardDone() 676 sendUserPresentBroadcast(); 677 } 678 } 679 680 /** 681 * A dream started. We should lock after the usual screen-off lock timeout but only 682 * if there is a secure lock pattern. 683 */ 684 public void onDreamingStarted() { 685 synchronized (this) { 686 if (mScreenOn && mLockPatternUtils.isSecure()) { 687 doKeyguardLaterLocked(); 688 } 689 } 690 } 691 692 /** 693 * A dream stopped. 694 */ 695 public void onDreamingStopped() { 696 synchronized (this) { 697 if (mScreenOn) { 698 cancelDoKeyguardLaterLocked(); 699 } 700 } 701 } 702 703 /** 704 * Same semantics as {@link WindowManagerPolicy#enableKeyguard}; provide 705 * a way for external stuff to override normal keyguard behavior. For instance 706 * the phone app disables the keyguard when it receives incoming calls. 707 */ 708 public void setKeyguardEnabled(boolean enabled) { 709 synchronized (this) { 710 if (DEBUG) Log.d(TAG, "setKeyguardEnabled(" + enabled + ")"); 711 712 mExternallyEnabled = enabled; 713 714 if (!enabled && mShowing) { 715 if (mExitSecureCallback != null) { 716 if (DEBUG) Log.d(TAG, "in process of verifyUnlock request, ignoring"); 717 // we're in the process of handling a request to verify the user 718 // can get past the keyguard. ignore extraneous requests to disable / reenable 719 return; 720 } 721 722 // hiding keyguard that is showing, remember to reshow later 723 if (DEBUG) Log.d(TAG, "remembering to reshow, hiding keyguard, " 724 + "disabling status bar expansion"); 725 mNeedToReshowWhenReenabled = true; 726 hideLocked(); 727 } else if (enabled && mNeedToReshowWhenReenabled) { 728 // reenabled after previously hidden, reshow 729 if (DEBUG) Log.d(TAG, "previously hidden, reshowing, reenabling " 730 + "status bar expansion"); 731 mNeedToReshowWhenReenabled = false; 732 733 if (mExitSecureCallback != null) { 734 if (DEBUG) Log.d(TAG, "onKeyguardExitResult(false), resetting"); 735 try { 736 mExitSecureCallback.onKeyguardExitResult(false); 737 } catch (RemoteException e) { 738 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 739 } 740 mExitSecureCallback = null; 741 resetStateLocked(null); 742 } else { 743 showLocked(null); 744 745 // block until we know the keygaurd is done drawing (and post a message 746 // to unblock us after a timeout so we don't risk blocking too long 747 // and causing an ANR). 748 mWaitingUntilKeyguardVisible = true; 749 mHandler.sendEmptyMessageDelayed(KEYGUARD_DONE_DRAWING, KEYGUARD_DONE_DRAWING_TIMEOUT_MS); 750 if (DEBUG) Log.d(TAG, "waiting until mWaitingUntilKeyguardVisible is false"); 751 while (mWaitingUntilKeyguardVisible) { 752 try { 753 wait(); 754 } catch (InterruptedException e) { 755 Thread.currentThread().interrupt(); 756 } 757 } 758 if (DEBUG) Log.d(TAG, "done waiting for mWaitingUntilKeyguardVisible"); 759 } 760 } 761 } 762 } 763 764 /** 765 * @see android.app.KeyguardManager#exitKeyguardSecurely 766 */ 767 public void verifyUnlock(IKeyguardExitCallback callback) { 768 synchronized (this) { 769 if (DEBUG) Log.d(TAG, "verifyUnlock"); 770 if (!mUpdateMonitor.isDeviceProvisioned()) { 771 // don't allow this api when the device isn't provisioned 772 if (DEBUG) Log.d(TAG, "ignoring because device isn't provisioned"); 773 try { 774 callback.onKeyguardExitResult(false); 775 } catch (RemoteException e) { 776 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 777 } 778 } else if (mExternallyEnabled) { 779 // this only applies when the user has externally disabled the 780 // keyguard. this is unexpected and means the user is not 781 // using the api properly. 782 Log.w(TAG, "verifyUnlock called when not externally disabled"); 783 try { 784 callback.onKeyguardExitResult(false); 785 } catch (RemoteException e) { 786 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 787 } 788 } else if (mExitSecureCallback != null) { 789 // already in progress with someone else 790 try { 791 callback.onKeyguardExitResult(false); 792 } catch (RemoteException e) { 793 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 794 } 795 } else { 796 mExitSecureCallback = callback; 797 verifyUnlockLocked(); 798 } 799 } 800 } 801 802 /** 803 * Is the keyguard currently showing? 804 */ 805 public boolean isShowing() { 806 return mShowing; 807 } 808 809 /** 810 * Is the keyguard currently showing and not being force hidden? 811 */ 812 public boolean isShowingAndNotHidden() { 813 return mShowing && !mHidden; 814 } 815 816 /** 817 * Notify us when the keyguard is hidden by another window 818 */ 819 public void setHidden(boolean isHidden) { 820 if (DEBUG) Log.d(TAG, "setHidden " + isHidden); 821 mUpdateMonitor.sendKeyguardVisibilityChanged(!isHidden); 822 mHandler.removeMessages(SET_HIDDEN); 823 Message msg = mHandler.obtainMessage(SET_HIDDEN, (isHidden ? 1 : 0), 0); 824 mHandler.sendMessage(msg); 825 } 826 827 /** 828 * Handles SET_HIDDEN message sent by setHidden() 829 */ 830 private void handleSetHidden(boolean isHidden) { 831 synchronized (KeyguardViewMediator.this) { 832 if (mHidden != isHidden) { 833 mHidden = isHidden; 834 updateActivityLockScreenState(); 835 adjustStatusBarLocked(); 836 } 837 } 838 } 839 840 /** 841 * Used by PhoneWindowManager to enable the keyguard due to a user activity timeout. 842 * This must be safe to call from any thread and with any window manager locks held. 843 */ 844 public void doKeyguardTimeout(Bundle options) { 845 mHandler.removeMessages(KEYGUARD_TIMEOUT); 846 Message msg = mHandler.obtainMessage(KEYGUARD_TIMEOUT, options); 847 mHandler.sendMessage(msg); 848 } 849 850 /** 851 * Given the state of the keyguard, is the input restricted? 852 * Input is restricted when the keyguard is showing, or when the keyguard 853 * was suppressed by an app that disabled the keyguard or we haven't been provisioned yet. 854 */ 855 public boolean isInputRestricted() { 856 return mShowing || mNeedToReshowWhenReenabled || !mUpdateMonitor.isDeviceProvisioned(); 857 } 858 859 /** 860 * Enable the keyguard if the settings are appropriate. 861 */ 862 private void doKeyguardLocked(Bundle options) { 863 // if another app is disabling us, don't show 864 if (!mExternallyEnabled) { 865 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because externally disabled"); 866 867 // note: we *should* set mNeedToReshowWhenReenabled=true here, but that makes 868 // for an occasional ugly flicker in this situation: 869 // 1) receive a call with the screen on (no keyguard) or make a call 870 // 2) screen times out 871 // 3) user hits key to turn screen back on 872 // instead, we reenable the keyguard when we know the screen is off and the call 873 // ends (see the broadcast receiver below) 874 // TODO: clean this up when we have better support at the window manager level 875 // for apps that wish to be on top of the keyguard 876 return; 877 } 878 879 // if the keyguard is already showing, don't bother 880 if (mKeyguardViewManager.isShowing()) { 881 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because it is already showing"); 882 return; 883 } 884 885 // if the setup wizard hasn't run yet, don't show 886 final boolean requireSim = !SystemProperties.getBoolean("keyguard.no_require_sim", 887 false); 888 final boolean provisioned = mUpdateMonitor.isDeviceProvisioned(); 889 final IccCardConstants.State state = mUpdateMonitor.getSimState(); 890 final boolean lockedOrMissing = state.isPinLocked() 891 || ((state == IccCardConstants.State.ABSENT 892 || state == IccCardConstants.State.PERM_DISABLED) 893 && requireSim); 894 895 if (!lockedOrMissing && !provisioned) { 896 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because device isn't provisioned" 897 + " and the sim is not locked or missing"); 898 return; 899 } 900 901 if (mUserManager.getUsers(true).size() < 2 902 && mLockPatternUtils.isLockScreenDisabled() && !lockedOrMissing) { 903 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because lockscreen is off"); 904 return; 905 } 906 907 if (DEBUG) Log.d(TAG, "doKeyguard: showing the lock screen"); 908 showLocked(options); 909 } 910 911 /** 912 * Dismiss the keyguard through the security layers. 913 */ 914 public void handleDismiss() { 915 if (mShowing && !mHidden) { 916 mKeyguardViewManager.dismiss(); 917 } 918 } 919 920 public void dismiss() { 921 mHandler.sendEmptyMessage(DISMISS); 922 } 923 924 /** 925 * Send message to keyguard telling it to reset its state. 926 * @param options options about how to show the keyguard 927 * @see #handleReset() 928 */ 929 private void resetStateLocked(Bundle options) { 930 if (DEBUG) Log.e(TAG, "resetStateLocked"); 931 Message msg = mHandler.obtainMessage(RESET, options); 932 mHandler.sendMessage(msg); 933 } 934 935 /** 936 * Send message to keyguard telling it to verify unlock 937 * @see #handleVerifyUnlock() 938 */ 939 private void verifyUnlockLocked() { 940 if (DEBUG) Log.d(TAG, "verifyUnlockLocked"); 941 mHandler.sendEmptyMessage(VERIFY_UNLOCK); 942 } 943 944 945 /** 946 * Send a message to keyguard telling it the screen just turned on. 947 * @see #onScreenTurnedOff(int) 948 * @see #handleNotifyScreenOff 949 */ 950 private void notifyScreenOffLocked() { 951 if (DEBUG) Log.d(TAG, "notifyScreenOffLocked"); 952 mHandler.sendEmptyMessage(NOTIFY_SCREEN_OFF); 953 } 954 955 /** 956 * Send a message to keyguard telling it the screen just turned on. 957 * @see #onScreenTurnedOn() 958 * @see #handleNotifyScreenOn 959 */ 960 private void notifyScreenOnLocked(IKeyguardShowCallback result) { 961 if (DEBUG) Log.d(TAG, "notifyScreenOnLocked"); 962 Message msg = mHandler.obtainMessage(NOTIFY_SCREEN_ON, result); 963 mHandler.sendMessage(msg); 964 } 965 966 /** 967 * Send message to keyguard telling it to show itself 968 * @see #handleShow() 969 */ 970 private void showLocked(Bundle options) { 971 if (DEBUG) Log.d(TAG, "showLocked"); 972 // ensure we stay awake until we are finished displaying the keyguard 973 mShowKeyguardWakeLock.acquire(); 974 Message msg = mHandler.obtainMessage(SHOW, options); 975 mHandler.sendMessage(msg); 976 } 977 978 /** 979 * Send message to keyguard telling it to hide itself 980 * @see #handleHide() 981 */ 982 private void hideLocked() { 983 if (DEBUG) Log.d(TAG, "hideLocked"); 984 Message msg = mHandler.obtainMessage(HIDE); 985 mHandler.sendMessage(msg); 986 } 987 988 public boolean isSecure() { 989 return mLockPatternUtils.isSecure() 990 || KeyguardUpdateMonitor.getInstance(mContext).isSimPinSecure(); 991 } 992 993 /** 994 * Update the newUserId. Call while holding WindowManagerService lock. 995 * NOTE: Should only be called by KeyguardViewMediator in response to the user id changing. 996 * 997 * @param newUserId The id of the incoming user. 998 */ 999 public void setCurrentUser(int newUserId) { 1000 mLockPatternUtils.setCurrentUser(newUserId); 1001 } 1002 1003 private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { 1004 @Override 1005 public void onReceive(Context context, Intent intent) { 1006 if (DELAYED_KEYGUARD_ACTION.equals(intent.getAction())) { 1007 final int sequence = intent.getIntExtra("seq", 0); 1008 if (DEBUG) Log.d(TAG, "received DELAYED_KEYGUARD_ACTION with seq = " 1009 + sequence + ", mDelayedShowingSequence = " + mDelayedShowingSequence); 1010 synchronized (KeyguardViewMediator.this) { 1011 if (mDelayedShowingSequence == sequence) { 1012 // Don't play lockscreen SFX if the screen went off due to timeout. 1013 mSuppressNextLockSound = true; 1014 doKeyguardLocked(null); 1015 } 1016 } 1017 } 1018 } 1019 }; 1020 1021 public void keyguardDone(boolean authenticated, boolean wakeup) { 1022 if (DEBUG) Log.d(TAG, "keyguardDone(" + authenticated + ")"); 1023 EventLog.writeEvent(70000, 2); 1024 synchronized (this) { 1025 mKeyguardDonePending = false; 1026 } 1027 Message msg = mHandler.obtainMessage(KEYGUARD_DONE, authenticated ? 1 : 0, wakeup ? 1 : 0); 1028 mHandler.sendMessage(msg); 1029 } 1030 1031 /** 1032 * This handler will be associated with the policy thread, which will also 1033 * be the UI thread of the keyguard. Since the apis of the policy, and therefore 1034 * this class, can be called by other threads, any action that directly 1035 * interacts with the keyguard ui should be posted to this handler, rather 1036 * than called directly. 1037 */ 1038 private Handler mHandler = new Handler(Looper.myLooper(), null, true /*async*/) { 1039 @Override 1040 public void handleMessage(Message msg) { 1041 switch (msg.what) { 1042 case SHOW: 1043 handleShow((Bundle) msg.obj); 1044 break; 1045 case HIDE: 1046 handleHide(); 1047 break; 1048 case RESET: 1049 handleReset((Bundle) msg.obj); 1050 break; 1051 case VERIFY_UNLOCK: 1052 handleVerifyUnlock(); 1053 break; 1054 case NOTIFY_SCREEN_OFF: 1055 handleNotifyScreenOff(); 1056 break; 1057 case NOTIFY_SCREEN_ON: 1058 handleNotifyScreenOn((IKeyguardShowCallback) msg.obj); 1059 break; 1060 case KEYGUARD_DONE: 1061 handleKeyguardDone(msg.arg1 != 0, msg.arg2 != 0); 1062 break; 1063 case KEYGUARD_DONE_DRAWING: 1064 handleKeyguardDoneDrawing(); 1065 break; 1066 case KEYGUARD_DONE_AUTHENTICATING: 1067 keyguardDone(true, true); 1068 break; 1069 case SET_HIDDEN: 1070 handleSetHidden(msg.arg1 != 0); 1071 break; 1072 case KEYGUARD_TIMEOUT: 1073 synchronized (KeyguardViewMediator.this) { 1074 doKeyguardLocked((Bundle) msg.obj); 1075 } 1076 break; 1077 case SHOW_ASSISTANT: 1078 handleShowAssistant(); 1079 break; 1080 case DISPATCH_EVENT: 1081 handleDispatchEvent((MotionEvent) msg.obj); 1082 break; 1083 case LAUNCH_CAMERA: 1084 handleLaunchCamera(); 1085 break; 1086 case DISMISS: 1087 handleDismiss(); 1088 break; 1089 } 1090 } 1091 }; 1092 1093 /** 1094 * @see #keyguardDone 1095 * @see #KEYGUARD_DONE 1096 */ 1097 private void handleKeyguardDone(boolean authenticated, boolean wakeup) { 1098 if (DEBUG) Log.d(TAG, "handleKeyguardDone"); 1099 1100 if (authenticated) { 1101 mUpdateMonitor.clearFailedUnlockAttempts(); 1102 } 1103 1104 if (mExitSecureCallback != null) { 1105 try { 1106 mExitSecureCallback.onKeyguardExitResult(authenticated); 1107 } catch (RemoteException e) { 1108 Slog.w(TAG, "Failed to call onKeyguardExitResult(" + authenticated + ")", e); 1109 } 1110 1111 mExitSecureCallback = null; 1112 1113 if (authenticated) { 1114 // after succesfully exiting securely, no need to reshow 1115 // the keyguard when they've released the lock 1116 mExternallyEnabled = true; 1117 mNeedToReshowWhenReenabled = false; 1118 } 1119 } 1120 1121 handleHide(); 1122 sendUserPresentBroadcast(); 1123 } 1124 1125 protected void handleLaunchCamera() { 1126 mKeyguardViewManager.launchCamera(); 1127 } 1128 1129 protected void handleDispatchEvent(MotionEvent event) { 1130 mKeyguardViewManager.dispatch(event); 1131 } 1132 1133 private void sendUserPresentBroadcast() { 1134 final UserHandle currentUser = new UserHandle(mLockPatternUtils.getCurrentUser()); 1135 mContext.sendBroadcastAsUser(USER_PRESENT_INTENT, currentUser); 1136 } 1137 1138 /** 1139 * @see #keyguardDoneDrawing 1140 * @see #KEYGUARD_DONE_DRAWING 1141 */ 1142 private void handleKeyguardDoneDrawing() { 1143 synchronized(this) { 1144 if (DEBUG) Log.d(TAG, "handleKeyguardDoneDrawing"); 1145 if (mWaitingUntilKeyguardVisible) { 1146 if (DEBUG) Log.d(TAG, "handleKeyguardDoneDrawing: notifying mWaitingUntilKeyguardVisible"); 1147 mWaitingUntilKeyguardVisible = false; 1148 notifyAll(); 1149 1150 // there will usually be two of these sent, one as a timeout, and one 1151 // as a result of the callback, so remove any remaining messages from 1152 // the queue 1153 mHandler.removeMessages(KEYGUARD_DONE_DRAWING); 1154 } 1155 } 1156 } 1157 1158 private void playSounds(boolean locked) { 1159 // User feedback for keyguard. 1160 1161 if (mSuppressNextLockSound) { 1162 mSuppressNextLockSound = false; 1163 return; 1164 } 1165 1166 final ContentResolver cr = mContext.getContentResolver(); 1167 if (Settings.System.getInt(cr, Settings.System.LOCKSCREEN_SOUNDS_ENABLED, 1) == 1) { 1168 final int whichSound = locked 1169 ? mLockSoundId 1170 : mUnlockSoundId; 1171 mLockSounds.stop(mLockSoundStreamId); 1172 // Init mAudioManager 1173 if (mAudioManager == null) { 1174 mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 1175 if (mAudioManager == null) return; 1176 mMasterStreamType = mAudioManager.getMasterStreamType(); 1177 } 1178 // If the stream is muted, don't play the sound 1179 if (mAudioManager.isStreamMute(mMasterStreamType)) return; 1180 1181 mLockSoundStreamId = mLockSounds.play(whichSound, 1182 mLockSoundVolume, mLockSoundVolume, 1/*priortiy*/, 0/*loop*/, 1.0f/*rate*/); 1183 } 1184 } 1185 1186 private void updateActivityLockScreenState() { 1187 try { 1188 ActivityManagerNative.getDefault().setLockScreenShown(mShowing && !mHidden); 1189 } catch (RemoteException e) { 1190 } 1191 } 1192 1193 /** 1194 * Handle message sent by {@link #showLocked}. 1195 * @see #SHOW 1196 */ 1197 private void handleShow(Bundle options) { 1198 synchronized (KeyguardViewMediator.this) { 1199 if (!mSystemReady) { 1200 if (DEBUG) Log.d(TAG, "ignoring handleShow because system is not ready."); 1201 return; 1202 } else { 1203 if (DEBUG) Log.d(TAG, "handleShow"); 1204 } 1205 1206 mKeyguardViewManager.show(options); 1207 mShowing = true; 1208 mKeyguardDonePending = false; 1209 updateActivityLockScreenState(); 1210 adjustStatusBarLocked(); 1211 userActivity(); 1212 try { 1213 ActivityManagerNative.getDefault().closeSystemDialogs("lock"); 1214 } catch (RemoteException e) { 1215 } 1216 1217 // Do this at the end to not slow down display of the keyguard. 1218 playSounds(true); 1219 1220 mShowKeyguardWakeLock.release(); 1221 } 1222 } 1223 1224 /** 1225 * Handle message sent by {@link #hideLocked()} 1226 * @see #HIDE 1227 */ 1228 private void handleHide() { 1229 synchronized (KeyguardViewMediator.this) { 1230 if (DEBUG) Log.d(TAG, "handleHide"); 1231 1232 // only play "unlock" noises if not on a call (since the incall UI 1233 // disables the keyguard) 1234 if (TelephonyManager.EXTRA_STATE_IDLE.equals(mPhoneState)) { 1235 playSounds(false); 1236 } 1237 1238 mKeyguardViewManager.hide(); 1239 mShowing = false; 1240 mKeyguardDonePending = false; 1241 updateActivityLockScreenState(); 1242 adjustStatusBarLocked(); 1243 } 1244 } 1245 1246 private void adjustStatusBarLocked() { 1247 if (mStatusBarManager == null) { 1248 mStatusBarManager = (StatusBarManager) 1249 mContext.getSystemService(Context.STATUS_BAR_SERVICE); 1250 } 1251 if (mStatusBarManager == null) { 1252 Log.w(TAG, "Could not get status bar manager"); 1253 } else { 1254 // Disable aspects of the system/status/navigation bars that must not be re-enabled by 1255 // windows that appear on top, ever 1256 int flags = StatusBarManager.DISABLE_NONE; 1257 if (mShowing) { 1258 // Permanently disable components not available when keyguard is enabled 1259 // (like recents). Temporary enable/disable (e.g. the "back" button) are 1260 // done in KeyguardHostView. 1261 flags |= StatusBarManager.DISABLE_RECENT; 1262 if (isSecure() || !ENABLE_INSECURE_STATUS_BAR_EXPAND) { 1263 // showing secure lockscreen; disable expanding. 1264 flags |= StatusBarManager.DISABLE_EXPAND; 1265 } 1266 if (isSecure()) { 1267 // showing secure lockscreen; disable ticker. 1268 flags |= StatusBarManager.DISABLE_NOTIFICATION_TICKER; 1269 } 1270 if (!isAssistantAvailable()) { 1271 flags |= StatusBarManager.DISABLE_SEARCH; 1272 } 1273 } 1274 1275 if (DEBUG) { 1276 Log.d(TAG, "adjustStatusBarLocked: mShowing=" + mShowing + " mHidden=" + mHidden 1277 + " isSecure=" + isSecure() + " --> flags=0x" + Integer.toHexString(flags)); 1278 } 1279 1280 if (!(mContext instanceof Activity)) { 1281 mStatusBarManager.disable(flags); 1282 } 1283 } 1284 } 1285 1286 /** 1287 * Handle message sent by {@link #resetStateLocked(Bundle)} 1288 * @see #RESET 1289 */ 1290 private void handleReset(Bundle options) { 1291 if (options == null) { 1292 options = new Bundle(); 1293 } 1294 options.putBoolean(KeyguardViewManager.IS_SWITCHING_USER, mSwitchingUser); 1295 synchronized (KeyguardViewMediator.this) { 1296 if (DEBUG) Log.d(TAG, "handleReset"); 1297 mKeyguardViewManager.reset(options); 1298 } 1299 } 1300 1301 /** 1302 * Handle message sent by {@link #verifyUnlock} 1303 * @see #VERIFY_UNLOCK 1304 */ 1305 private void handleVerifyUnlock() { 1306 synchronized (KeyguardViewMediator.this) { 1307 if (DEBUG) Log.d(TAG, "handleVerifyUnlock"); 1308 mKeyguardViewManager.verifyUnlock(); 1309 mShowing = true; 1310 updateActivityLockScreenState(); 1311 } 1312 } 1313 1314 /** 1315 * Handle message sent by {@link #notifyScreenOffLocked()} 1316 * @see #NOTIFY_SCREEN_OFF 1317 */ 1318 private void handleNotifyScreenOff() { 1319 synchronized (KeyguardViewMediator.this) { 1320 if (DEBUG) Log.d(TAG, "handleNotifyScreenOff"); 1321 mKeyguardViewManager.onScreenTurnedOff(); 1322 } 1323 } 1324 1325 /** 1326 * Handle message sent by {@link #notifyScreenOnLocked()} 1327 * @see #NOTIFY_SCREEN_ON 1328 */ 1329 private void handleNotifyScreenOn(IKeyguardShowCallback callback) { 1330 synchronized (KeyguardViewMediator.this) { 1331 if (DEBUG) Log.d(TAG, "handleNotifyScreenOn"); 1332 mKeyguardViewManager.onScreenTurnedOn(callback); 1333 } 1334 } 1335 1336 public boolean isDismissable() { 1337 return mKeyguardDonePending || !isSecure(); 1338 } 1339 1340 public void showAssistant() { 1341 Message msg = mHandler.obtainMessage(SHOW_ASSISTANT); 1342 mHandler.sendMessage(msg); 1343 } 1344 1345 public void handleShowAssistant() { 1346 mKeyguardViewManager.showAssistant(); 1347 } 1348 1349 private boolean isAssistantAvailable() { 1350 return mSearchManager != null 1351 && mSearchManager.getAssistIntent(mContext, false, UserHandle.USER_CURRENT) != null; 1352 } 1353 1354 public static MultiUserAvatarCache getAvatarCache() { 1355 return sMultiUserAvatarCache; 1356 } 1357 1358 public void dispatch(MotionEvent event) { 1359 Message msg = mHandler.obtainMessage(DISPATCH_EVENT, event); 1360 mHandler.sendMessage(msg); 1361 } 1362 1363 public void launchCamera() { 1364 Message msg = mHandler.obtainMessage(LAUNCH_CAMERA); 1365 mHandler.sendMessage(msg); 1366 } 1367} 1368