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 17 package com.android.keyguard; 18 19 import android.graphics.Bitmap; 20 import com.android.internal.policy.IKeyguardExitCallback; 21 import com.android.internal.policy.IKeyguardShowCallback; 22 import static android.provider.Settings.System.SCREEN_OFF_TIMEOUT; 23 24 import android.app.Activity; 25 import android.app.ActivityManagerNative; 26 import android.app.AlarmManager; 27 import android.app.PendingIntent; 28 import android.app.SearchManager; 29 import android.app.StatusBarManager; 30 import android.content.BroadcastReceiver; 31 import android.content.ContentResolver; 32 import android.content.Context; 33 import android.content.Intent; 34 import android.content.IntentFilter; 35 import android.media.AudioManager; 36 import android.media.SoundPool; 37 import android.os.Bundle; 38 import android.os.Handler; 39 import android.os.Looper; 40 import android.os.Message; 41 import android.os.PowerManager; 42 import android.os.RemoteException; 43 import android.os.SystemClock; 44 import android.os.SystemProperties; 45 import android.os.UserHandle; 46 import android.os.UserManager; 47 import android.provider.Settings; 48 import android.telephony.TelephonyManager; 49 import android.util.EventLog; 50 import android.util.Log; 51 import android.util.Slog; 52 import android.view.KeyEvent; 53 import android.view.MotionEvent; 54 import android.view.WindowManager; 55 import android.view.WindowManagerPolicy; 56 57 import com.android.internal.telephony.IccCardConstants; 58 import 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 */ 102 public 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 // Suppress biometric unlock right after boot until things have settled if it is the 534 // selected security method, otherwise unsuppress it. It must be unsuppressed if it is 535 // not the selected security method for the following reason: if the user starts 536 // without a screen lock selected, the biometric unlock would be suppressed the first 537 // time they try to use it. 538 // 539 // Note that the biometric unlock will still not show if it is not the selected method. 540 // Calling setAlternateUnlockEnabled(true) simply says don't suppress it if it is the 541 // selected method. 542 if (mLockPatternUtils.usingBiometricWeak() 543 && mLockPatternUtils.isBiometricWeakInstalled()) { 544 if (DEBUG) Log.d(TAG, "suppressing biometric unlock during boot"); 545 mUpdateMonitor.setAlternateUnlockEnabled(false); 546 } else { 547 mUpdateMonitor.setAlternateUnlockEnabled(true); 548 } 549 550 doKeyguardLocked(null); 551 } 552 // Most services aren't available until the system reaches the ready state, so we 553 // send it here when the device first boots. 554 maybeSendUserPresentBroadcast(); 555 } 556 557 /** 558 * Called to let us know the screen was turned off. 559 * @param why either {@link WindowManagerPolicy#OFF_BECAUSE_OF_USER}, 560 * {@link WindowManagerPolicy#OFF_BECAUSE_OF_TIMEOUT} or 561 * {@link WindowManagerPolicy#OFF_BECAUSE_OF_PROX_SENSOR}. 562 */ 563 public void onScreenTurnedOff(int why) { 564 synchronized (this) { 565 mScreenOn = false; 566 if (DEBUG) Log.d(TAG, "onScreenTurnedOff(" + why + ")"); 567 568 mKeyguardDonePending = false; 569 570 // Lock immediately based on setting if secure (user has a pin/pattern/password). 571 // This also "locks" the device when not secure to provide easy access to the 572 // camera while preventing unwanted input. 573 final boolean lockImmediately = 574 mLockPatternUtils.getPowerButtonInstantlyLocks() || !mLockPatternUtils.isSecure(); 575 576 if (mExitSecureCallback != null) { 577 if (DEBUG) Log.d(TAG, "pending exit secure callback cancelled"); 578 try { 579 mExitSecureCallback.onKeyguardExitResult(false); 580 } catch (RemoteException e) { 581 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 582 } 583 mExitSecureCallback = null; 584 if (!mExternallyEnabled) { 585 hideLocked(); 586 } 587 } else if (mShowing) { 588 notifyScreenOffLocked(); 589 resetStateLocked(null); 590 } else if (why == WindowManagerPolicy.OFF_BECAUSE_OF_TIMEOUT 591 || (why == WindowManagerPolicy.OFF_BECAUSE_OF_USER && !lockImmediately)) { 592 doKeyguardLaterLocked(); 593 } else if (why == WindowManagerPolicy.OFF_BECAUSE_OF_PROX_SENSOR) { 594 // Do not enable the keyguard if the prox sensor forced the screen off. 595 } else { 596 doKeyguardLocked(null); 597 } 598 } 599 KeyguardUpdateMonitor.getInstance(mContext).dispatchScreenTurndOff(why); 600 } 601 602 private void doKeyguardLaterLocked() { 603 // if the screen turned off because of timeout or the user hit the power button 604 // and we don't need to lock immediately, set an alarm 605 // to enable it a little bit later (i.e, give the user a chance 606 // to turn the screen back on within a certain window without 607 // having to unlock the screen) 608 final ContentResolver cr = mContext.getContentResolver(); 609 610 // From DisplaySettings 611 long displayTimeout = Settings.System.getInt(cr, SCREEN_OFF_TIMEOUT, 612 KEYGUARD_DISPLAY_TIMEOUT_DELAY_DEFAULT); 613 614 // From SecuritySettings 615 final long lockAfterTimeout = Settings.Secure.getInt(cr, 616 Settings.Secure.LOCK_SCREEN_LOCK_AFTER_TIMEOUT, 617 KEYGUARD_LOCK_AFTER_DELAY_DEFAULT); 618 619 // From DevicePolicyAdmin 620 final long policyTimeout = mLockPatternUtils.getDevicePolicyManager() 621 .getMaximumTimeToLock(null, mLockPatternUtils.getCurrentUser()); 622 623 long timeout; 624 if (policyTimeout > 0) { 625 // policy in effect. Make sure we don't go beyond policy limit. 626 displayTimeout = Math.max(displayTimeout, 0); // ignore negative values 627 timeout = Math.min(policyTimeout - displayTimeout, lockAfterTimeout); 628 } else { 629 timeout = lockAfterTimeout; 630 } 631 632 if (timeout <= 0) { 633 // Lock now 634 mSuppressNextLockSound = true; 635 doKeyguardLocked(null); 636 } else { 637 // Lock in the future 638 long when = SystemClock.elapsedRealtime() + timeout; 639 Intent intent = new Intent(DELAYED_KEYGUARD_ACTION); 640 intent.putExtra("seq", mDelayedShowingSequence); 641 PendingIntent sender = PendingIntent.getBroadcast(mContext, 642 0, intent, PendingIntent.FLAG_CANCEL_CURRENT); 643 mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, when, sender); 644 if (DEBUG) Log.d(TAG, "setting alarm to turn off keyguard, seq = " 645 + mDelayedShowingSequence); 646 } 647 } 648 649 private void cancelDoKeyguardLaterLocked() { 650 mDelayedShowingSequence++; 651 } 652 653 /** 654 * Let's us know the screen was turned on. 655 */ 656 public void onScreenTurnedOn(IKeyguardShowCallback callback) { 657 synchronized (this) { 658 mScreenOn = true; 659 cancelDoKeyguardLaterLocked(); 660 if (DEBUG) Log.d(TAG, "onScreenTurnedOn, seq = " + mDelayedShowingSequence); 661 if (callback != null) { 662 notifyScreenOnLocked(callback); 663 } 664 } 665 KeyguardUpdateMonitor.getInstance(mContext).dispatchScreenTurnedOn(); 666 maybeSendUserPresentBroadcast(); 667 } 668 669 private void maybeSendUserPresentBroadcast() { 670 if (mSystemReady && mLockPatternUtils.isLockScreenDisabled() 671 && mUserManager.getUsers(true).size() == 1) { 672 // Lock screen is disabled because the user has set the preference to "None". 673 // In this case, send out ACTION_USER_PRESENT here instead of in 674 // handleKeyguardDone() 675 sendUserPresentBroadcast(); 676 } 677 } 678 679 /** 680 * A dream started. We should lock after the usual screen-off lock timeout but only 681 * if there is a secure lock pattern. 682 */ 683 public void onDreamingStarted() { 684 synchronized (this) { 685 if (mScreenOn && mLockPatternUtils.isSecure()) { 686 doKeyguardLaterLocked(); 687 } 688 } 689 } 690 691 /** 692 * A dream stopped. 693 */ 694 public void onDreamingStopped() { 695 synchronized (this) { 696 if (mScreenOn) { 697 cancelDoKeyguardLaterLocked(); 698 } 699 } 700 } 701 702 /** 703 * Same semantics as {@link WindowManagerPolicy#enableKeyguard}; provide 704 * a way for external stuff to override normal keyguard behavior. For instance 705 * the phone app disables the keyguard when it receives incoming calls. 706 */ 707 public void setKeyguardEnabled(boolean enabled) { 708 synchronized (this) { 709 if (DEBUG) Log.d(TAG, "setKeyguardEnabled(" + enabled + ")"); 710 711 mExternallyEnabled = enabled; 712 713 if (!enabled && mShowing) { 714 if (mExitSecureCallback != null) { 715 if (DEBUG) Log.d(TAG, "in process of verifyUnlock request, ignoring"); 716 // we're in the process of handling a request to verify the user 717 // can get past the keyguard. ignore extraneous requests to disable / reenable 718 return; 719 } 720 721 // hiding keyguard that is showing, remember to reshow later 722 if (DEBUG) Log.d(TAG, "remembering to reshow, hiding keyguard, " 723 + "disabling status bar expansion"); 724 mNeedToReshowWhenReenabled = true; 725 hideLocked(); 726 } else if (enabled && mNeedToReshowWhenReenabled) { 727 // reenabled after previously hidden, reshow 728 if (DEBUG) Log.d(TAG, "previously hidden, reshowing, reenabling " 729 + "status bar expansion"); 730 mNeedToReshowWhenReenabled = false; 731 732 if (mExitSecureCallback != null) { 733 if (DEBUG) Log.d(TAG, "onKeyguardExitResult(false), resetting"); 734 try { 735 mExitSecureCallback.onKeyguardExitResult(false); 736 } catch (RemoteException e) { 737 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 738 } 739 mExitSecureCallback = null; 740 resetStateLocked(null); 741 } else { 742 showLocked(null); 743 744 // block until we know the keygaurd is done drawing (and post a message 745 // to unblock us after a timeout so we don't risk blocking too long 746 // and causing an ANR). 747 mWaitingUntilKeyguardVisible = true; 748 mHandler.sendEmptyMessageDelayed(KEYGUARD_DONE_DRAWING, KEYGUARD_DONE_DRAWING_TIMEOUT_MS); 749 if (DEBUG) Log.d(TAG, "waiting until mWaitingUntilKeyguardVisible is false"); 750 while (mWaitingUntilKeyguardVisible) { 751 try { 752 wait(); 753 } catch (InterruptedException e) { 754 Thread.currentThread().interrupt(); 755 } 756 } 757 if (DEBUG) Log.d(TAG, "done waiting for mWaitingUntilKeyguardVisible"); 758 } 759 } 760 } 761 } 762 763 /** 764 * @see android.app.KeyguardManager#exitKeyguardSecurely 765 */ 766 public void verifyUnlock(IKeyguardExitCallback callback) { 767 synchronized (this) { 768 if (DEBUG) Log.d(TAG, "verifyUnlock"); 769 if (!mUpdateMonitor.isDeviceProvisioned()) { 770 // don't allow this api when the device isn't provisioned 771 if (DEBUG) Log.d(TAG, "ignoring because device isn't provisioned"); 772 try { 773 callback.onKeyguardExitResult(false); 774 } catch (RemoteException e) { 775 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 776 } 777 } else if (mExternallyEnabled) { 778 // this only applies when the user has externally disabled the 779 // keyguard. this is unexpected and means the user is not 780 // using the api properly. 781 Log.w(TAG, "verifyUnlock called when not externally disabled"); 782 try { 783 callback.onKeyguardExitResult(false); 784 } catch (RemoteException e) { 785 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 786 } 787 } else if (mExitSecureCallback != null) { 788 // already in progress with someone else 789 try { 790 callback.onKeyguardExitResult(false); 791 } catch (RemoteException e) { 792 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 793 } 794 } else { 795 mExitSecureCallback = callback; 796 verifyUnlockLocked(); 797 } 798 } 799 } 800 801 /** 802 * Is the keyguard currently showing? 803 */ 804 public boolean isShowing() { 805 return mShowing; 806 } 807 808 /** 809 * Is the keyguard currently showing and not being force hidden? 810 */ 811 public boolean isShowingAndNotHidden() { 812 return mShowing && !mHidden; 813 } 814 815 /** 816 * Notify us when the keyguard is hidden by another window 817 */ 818 public void setHidden(boolean isHidden) { 819 if (DEBUG) Log.d(TAG, "setHidden " + isHidden); 820 mUpdateMonitor.sendKeyguardVisibilityChanged(!isHidden); 821 mHandler.removeMessages(SET_HIDDEN); 822 Message msg = mHandler.obtainMessage(SET_HIDDEN, (isHidden ? 1 : 0), 0); 823 mHandler.sendMessage(msg); 824 } 825 826 /** 827 * Handles SET_HIDDEN message sent by setHidden() 828 */ 829 private void handleSetHidden(boolean isHidden) { 830 synchronized (KeyguardViewMediator.this) { 831 if (mHidden != isHidden) { 832 mHidden = isHidden; 833 updateActivityLockScreenState(); 834 adjustStatusBarLocked(); 835 } 836 } 837 } 838 839 /** 840 * Used by PhoneWindowManager to enable the keyguard due to a user activity timeout. 841 * This must be safe to call from any thread and with any window manager locks held. 842 */ 843 public void doKeyguardTimeout(Bundle options) { 844 mHandler.removeMessages(KEYGUARD_TIMEOUT); 845 Message msg = mHandler.obtainMessage(KEYGUARD_TIMEOUT, options); 846 mHandler.sendMessage(msg); 847 } 848 849 /** 850 * Given the state of the keyguard, is the input restricted? 851 * Input is restricted when the keyguard is showing, or when the keyguard 852 * was suppressed by an app that disabled the keyguard or we haven't been provisioned yet. 853 */ 854 public boolean isInputRestricted() { 855 return mShowing || mNeedToReshowWhenReenabled || !mUpdateMonitor.isDeviceProvisioned(); 856 } 857 858 /** 859 * Enable the keyguard if the settings are appropriate. 860 */ 861 private void doKeyguardLocked(Bundle options) { 862 // if another app is disabling us, don't show 863 if (!mExternallyEnabled) { 864 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because externally disabled"); 865 866 // note: we *should* set mNeedToReshowWhenReenabled=true here, but that makes 867 // for an occasional ugly flicker in this situation: 868 // 1) receive a call with the screen on (no keyguard) or make a call 869 // 2) screen times out 870 // 3) user hits key to turn screen back on 871 // instead, we reenable the keyguard when we know the screen is off and the call 872 // ends (see the broadcast receiver below) 873 // TODO: clean this up when we have better support at the window manager level 874 // for apps that wish to be on top of the keyguard 875 return; 876 } 877 878 // if the keyguard is already showing, don't bother 879 if (mKeyguardViewManager.isShowing()) { 880 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because it is already showing"); 881 return; 882 } 883 884 // if the setup wizard hasn't run yet, don't show 885 final boolean requireSim = !SystemProperties.getBoolean("keyguard.no_require_sim", 886 false); 887 final boolean provisioned = mUpdateMonitor.isDeviceProvisioned(); 888 final IccCardConstants.State state = mUpdateMonitor.getSimState(); 889 final boolean lockedOrMissing = state.isPinLocked() 890 || ((state == IccCardConstants.State.ABSENT 891 || state == IccCardConstants.State.PERM_DISABLED) 892 && requireSim); 893 894 if (!lockedOrMissing && !provisioned) { 895 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because device isn't provisioned" 896 + " and the sim is not locked or missing"); 897 return; 898 } 899 900 if (mUserManager.getUsers(true).size() < 2 901 && mLockPatternUtils.isLockScreenDisabled() && !lockedOrMissing) { 902 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because lockscreen is off"); 903 return; 904 } 905 906 if (DEBUG) Log.d(TAG, "doKeyguard: showing the lock screen"); 907 showLocked(options); 908 } 909 910 /** 911 * Dismiss the keyguard through the security layers. 912 */ 913 public void handleDismiss() { 914 if (mShowing && !mHidden) { 915 mKeyguardViewManager.dismiss(); 916 } 917 } 918 919 public void dismiss() { 920 mHandler.sendEmptyMessage(DISMISS); 921 } 922 923 /** 924 * Send message to keyguard telling it to reset its state. 925 * @param options options about how to show the keyguard 926 * @see #handleReset() 927 */ 928 private void resetStateLocked(Bundle options) { 929 if (DEBUG) Log.e(TAG, "resetStateLocked"); 930 Message msg = mHandler.obtainMessage(RESET, options); 931 mHandler.sendMessage(msg); 932 } 933 934 /** 935 * Send message to keyguard telling it to verify unlock 936 * @see #handleVerifyUnlock() 937 */ 938 private void verifyUnlockLocked() { 939 if (DEBUG) Log.d(TAG, "verifyUnlockLocked"); 940 mHandler.sendEmptyMessage(VERIFY_UNLOCK); 941 } 942 943 944 /** 945 * Send a message to keyguard telling it the screen just turned on. 946 * @see #onScreenTurnedOff(int) 947 * @see #handleNotifyScreenOff 948 */ 949 private void notifyScreenOffLocked() { 950 if (DEBUG) Log.d(TAG, "notifyScreenOffLocked"); 951 mHandler.sendEmptyMessage(NOTIFY_SCREEN_OFF); 952 } 953 954 /** 955 * Send a message to keyguard telling it the screen just turned on. 956 * @see #onScreenTurnedOn() 957 * @see #handleNotifyScreenOn 958 */ 959 private void notifyScreenOnLocked(IKeyguardShowCallback result) { 960 if (DEBUG) Log.d(TAG, "notifyScreenOnLocked"); 961 Message msg = mHandler.obtainMessage(NOTIFY_SCREEN_ON, result); 962 mHandler.sendMessage(msg); 963 } 964 965 /** 966 * Send message to keyguard telling it to show itself 967 * @see #handleShow() 968 */ 969 private void showLocked(Bundle options) { 970 if (DEBUG) Log.d(TAG, "showLocked"); 971 // ensure we stay awake until we are finished displaying the keyguard 972 mShowKeyguardWakeLock.acquire(); 973 Message msg = mHandler.obtainMessage(SHOW, options); 974 mHandler.sendMessage(msg); 975 } 976 977 /** 978 * Send message to keyguard telling it to hide itself 979 * @see #handleHide() 980 */ 981 private void hideLocked() { 982 if (DEBUG) Log.d(TAG, "hideLocked"); 983 Message msg = mHandler.obtainMessage(HIDE); 984 mHandler.sendMessage(msg); 985 } 986 987 public boolean isSecure() { 988 return mLockPatternUtils.isSecure() 989 || KeyguardUpdateMonitor.getInstance(mContext).isSimPinSecure(); 990 } 991 992 /** 993 * Update the newUserId. Call while holding WindowManagerService lock. 994 * NOTE: Should only be called by KeyguardViewMediator in response to the user id changing. 995 * 996 * @param newUserId The id of the incoming user. 997 */ 998 public void setCurrentUser(int newUserId) { 999 mLockPatternUtils.setCurrentUser(newUserId); 1000 } 1001 1002 private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { 1003 @Override 1004 public void onReceive(Context context, Intent intent) { 1005 if (DELAYED_KEYGUARD_ACTION.equals(intent.getAction())) { 1006 final int sequence = intent.getIntExtra("seq", 0); 1007 if (DEBUG) Log.d(TAG, "received DELAYED_KEYGUARD_ACTION with seq = " 1008 + sequence + ", mDelayedShowingSequence = " + mDelayedShowingSequence); 1009 synchronized (KeyguardViewMediator.this) { 1010 if (mDelayedShowingSequence == sequence) { 1011 // Don't play lockscreen SFX if the screen went off due to timeout. 1012 mSuppressNextLockSound = true; 1013 doKeyguardLocked(null); 1014 } 1015 } 1016 } 1017 } 1018 }; 1019 1020 public void keyguardDone(boolean authenticated, boolean wakeup) { 1021 if (DEBUG) Log.d(TAG, "keyguardDone(" + authenticated + ")"); 1022 EventLog.writeEvent(70000, 2); 1023 synchronized (this) { 1024 mKeyguardDonePending = false; 1025 } 1026 Message msg = mHandler.obtainMessage(KEYGUARD_DONE, authenticated ? 1 : 0, wakeup ? 1 : 0); 1027 mHandler.sendMessage(msg); 1028 } 1029 1030 /** 1031 * This handler will be associated with the policy thread, which will also 1032 * be the UI thread of the keyguard. Since the apis of the policy, and therefore 1033 * this class, can be called by other threads, any action that directly 1034 * interacts with the keyguard ui should be posted to this handler, rather 1035 * than called directly. 1036 */ 1037 private Handler mHandler = new Handler(Looper.myLooper(), null, true /*async*/) { 1038 @Override 1039 public void handleMessage(Message msg) { 1040 switch (msg.what) { 1041 case SHOW: 1042 handleShow((Bundle) msg.obj); 1043 break; 1044 case HIDE: 1045 handleHide(); 1046 break; 1047 case RESET: 1048 handleReset((Bundle) msg.obj); 1049 break; 1050 case VERIFY_UNLOCK: 1051 handleVerifyUnlock(); 1052 break; 1053 case NOTIFY_SCREEN_OFF: 1054 handleNotifyScreenOff(); 1055 break; 1056 case NOTIFY_SCREEN_ON: 1057 handleNotifyScreenOn((IKeyguardShowCallback) msg.obj); 1058 break; 1059 case KEYGUARD_DONE: 1060 handleKeyguardDone(msg.arg1 != 0, msg.arg2 != 0); 1061 break; 1062 case KEYGUARD_DONE_DRAWING: 1063 handleKeyguardDoneDrawing(); 1064 break; 1065 case KEYGUARD_DONE_AUTHENTICATING: 1066 keyguardDone(true, true); 1067 break; 1068 case SET_HIDDEN: 1069 handleSetHidden(msg.arg1 != 0); 1070 break; 1071 case KEYGUARD_TIMEOUT: 1072 synchronized (KeyguardViewMediator.this) { 1073 doKeyguardLocked((Bundle) msg.obj); 1074 } 1075 break; 1076 case SHOW_ASSISTANT: 1077 handleShowAssistant(); 1078 break; 1079 case DISPATCH_EVENT: 1080 handleDispatchEvent((MotionEvent) msg.obj); 1081 break; 1082 case LAUNCH_CAMERA: 1083 handleLaunchCamera(); 1084 break; 1085 case DISMISS: 1086 handleDismiss(); 1087 break; 1088 } 1089 } 1090 }; 1091 1092 /** 1093 * @see #keyguardDone 1094 * @see #KEYGUARD_DONE 1095 */ 1096 private void handleKeyguardDone(boolean authenticated, boolean wakeup) { 1097 if (DEBUG) Log.d(TAG, "handleKeyguardDone"); 1098 1099 if (authenticated) { 1100 mUpdateMonitor.clearFailedUnlockAttempts(); 1101 } 1102 1103 if (mExitSecureCallback != null) { 1104 try { 1105 mExitSecureCallback.onKeyguardExitResult(authenticated); 1106 } catch (RemoteException e) { 1107 Slog.w(TAG, "Failed to call onKeyguardExitResult(" + authenticated + ")", e); 1108 } 1109 1110 mExitSecureCallback = null; 1111 1112 if (authenticated) { 1113 // after succesfully exiting securely, no need to reshow 1114 // the keyguard when they've released the lock 1115 mExternallyEnabled = true; 1116 mNeedToReshowWhenReenabled = false; 1117 } 1118 } 1119 1120 handleHide(); 1121 sendUserPresentBroadcast(); 1122 } 1123 1124 protected void handleLaunchCamera() { 1125 mKeyguardViewManager.launchCamera(); 1126 } 1127 1128 protected void handleDispatchEvent(MotionEvent event) { 1129 mKeyguardViewManager.dispatch(event); 1130 } 1131 1132 private void sendUserPresentBroadcast() { 1133 final UserHandle currentUser = new UserHandle(mLockPatternUtils.getCurrentUser()); 1134 mContext.sendBroadcastAsUser(USER_PRESENT_INTENT, currentUser); 1135 } 1136 1137 /** 1138 * @see #keyguardDoneDrawing 1139 * @see #KEYGUARD_DONE_DRAWING 1140 */ 1141 private void handleKeyguardDoneDrawing() { 1142 synchronized(this) { 1143 if (DEBUG) Log.d(TAG, "handleKeyguardDoneDrawing"); 1144 if (mWaitingUntilKeyguardVisible) { 1145 if (DEBUG) Log.d(TAG, "handleKeyguardDoneDrawing: notifying mWaitingUntilKeyguardVisible"); 1146 mWaitingUntilKeyguardVisible = false; 1147 notifyAll(); 1148 1149 // there will usually be two of these sent, one as a timeout, and one 1150 // as a result of the callback, so remove any remaining messages from 1151 // the queue 1152 mHandler.removeMessages(KEYGUARD_DONE_DRAWING); 1153 } 1154 } 1155 } 1156 1157 private void playSounds(boolean locked) { 1158 // User feedback for keyguard. 1159 1160 if (mSuppressNextLockSound) { 1161 mSuppressNextLockSound = false; 1162 return; 1163 } 1164 1165 final ContentResolver cr = mContext.getContentResolver(); 1166 if (Settings.System.getInt(cr, Settings.System.LOCKSCREEN_SOUNDS_ENABLED, 1) == 1) { 1167 final int whichSound = locked 1168 ? mLockSoundId 1169 : mUnlockSoundId; 1170 mLockSounds.stop(mLockSoundStreamId); 1171 // Init mAudioManager 1172 if (mAudioManager == null) { 1173 mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 1174 if (mAudioManager == null) return; 1175 mMasterStreamType = mAudioManager.getMasterStreamType(); 1176 } 1177 // If the stream is muted, don't play the sound 1178 if (mAudioManager.isStreamMute(mMasterStreamType)) return; 1179 1180 mLockSoundStreamId = mLockSounds.play(whichSound, 1181 mLockSoundVolume, mLockSoundVolume, 1/*priortiy*/, 0/*loop*/, 1.0f/*rate*/); 1182 } 1183 } 1184 1185 private void updateActivityLockScreenState() { 1186 try { 1187 ActivityManagerNative.getDefault().setLockScreenShown(mShowing && !mHidden); 1188 } catch (RemoteException e) { 1189 } 1190 } 1191 1192 /** 1193 * Handle message sent by {@link #showLocked}. 1194 * @see #SHOW 1195 */ 1196 private void handleShow(Bundle options) { 1197 synchronized (KeyguardViewMediator.this) { 1198 if (!mSystemReady) { 1199 if (DEBUG) Log.d(TAG, "ignoring handleShow because system is not ready."); 1200 return; 1201 } else { 1202 if (DEBUG) Log.d(TAG, "handleShow"); 1203 } 1204 1205 mKeyguardViewManager.show(options); 1206 mShowing = true; 1207 mKeyguardDonePending = false; 1208 updateActivityLockScreenState(); 1209 adjustStatusBarLocked(); 1210 userActivity(); 1211 try { 1212 ActivityManagerNative.getDefault().closeSystemDialogs("lock"); 1213 } catch (RemoteException e) { 1214 } 1215 1216 // Do this at the end to not slow down display of the keyguard. 1217 playSounds(true); 1218 1219 mShowKeyguardWakeLock.release(); 1220 } 1221 } 1222 1223 /** 1224 * Handle message sent by {@link #hideLocked()} 1225 * @see #HIDE 1226 */ 1227 private void handleHide() { 1228 synchronized (KeyguardViewMediator.this) { 1229 if (DEBUG) Log.d(TAG, "handleHide"); 1230 1231 // only play "unlock" noises if not on a call (since the incall UI 1232 // disables the keyguard) 1233 if (TelephonyManager.EXTRA_STATE_IDLE.equals(mPhoneState)) { 1234 playSounds(false); 1235 } 1236 1237 mKeyguardViewManager.hide(); 1238 mShowing = false; 1239 mKeyguardDonePending = false; 1240 updateActivityLockScreenState(); 1241 adjustStatusBarLocked(); 1242 } 1243 } 1244 1245 private void adjustStatusBarLocked() { 1246 if (mStatusBarManager == null) { 1247 mStatusBarManager = (StatusBarManager) 1248 mContext.getSystemService(Context.STATUS_BAR_SERVICE); 1249 } 1250 if (mStatusBarManager == null) { 1251 Log.w(TAG, "Could not get status bar manager"); 1252 } else { 1253 // Disable aspects of the system/status/navigation bars that must not be re-enabled by 1254 // windows that appear on top, ever 1255 int flags = StatusBarManager.DISABLE_NONE; 1256 if (mShowing) { 1257 // Permanently disable components not available when keyguard is enabled 1258 // (like recents). Temporary enable/disable (e.g. the "back" button) are 1259 // done in KeyguardHostView. 1260 flags |= StatusBarManager.DISABLE_RECENT; 1261 if (isSecure() || !ENABLE_INSECURE_STATUS_BAR_EXPAND) { 1262 // showing secure lockscreen; disable expanding. 1263 flags |= StatusBarManager.DISABLE_EXPAND; 1264 } 1265 if (isSecure()) { 1266 // showing secure lockscreen; disable ticker. 1267 flags |= StatusBarManager.DISABLE_NOTIFICATION_TICKER; 1268 } 1269 if (!isAssistantAvailable()) { 1270 flags |= StatusBarManager.DISABLE_SEARCH; 1271 } 1272 } 1273 1274 if (DEBUG) { 1275 Log.d(TAG, "adjustStatusBarLocked: mShowing=" + mShowing + " mHidden=" + mHidden 1276 + " isSecure=" + isSecure() + " --> flags=0x" + Integer.toHexString(flags)); 1277 } 1278 1279 if (!(mContext instanceof Activity)) { 1280 mStatusBarManager.disable(flags); 1281 } 1282 } 1283 } 1284 1285 /** 1286 * Handle message sent by {@link #resetStateLocked(Bundle)} 1287 * @see #RESET 1288 */ 1289 private void handleReset(Bundle options) { 1290 if (options == null) { 1291 options = new Bundle(); 1292 } 1293 options.putBoolean(KeyguardViewManager.IS_SWITCHING_USER, mSwitchingUser); 1294 synchronized (KeyguardViewMediator.this) { 1295 if (DEBUG) Log.d(TAG, "handleReset"); 1296 mKeyguardViewManager.reset(options); 1297 } 1298 } 1299 1300 /** 1301 * Handle message sent by {@link #verifyUnlock} 1302 * @see #VERIFY_UNLOCK 1303 */ 1304 private void handleVerifyUnlock() { 1305 synchronized (KeyguardViewMediator.this) { 1306 if (DEBUG) Log.d(TAG, "handleVerifyUnlock"); 1307 mKeyguardViewManager.verifyUnlock(); 1308 mShowing = true; 1309 updateActivityLockScreenState(); 1310 } 1311 } 1312 1313 /** 1314 * Handle message sent by {@link #notifyScreenOffLocked()} 1315 * @see #NOTIFY_SCREEN_OFF 1316 */ 1317 private void handleNotifyScreenOff() { 1318 synchronized (KeyguardViewMediator.this) { 1319 if (DEBUG) Log.d(TAG, "handleNotifyScreenOff"); 1320 mKeyguardViewManager.onScreenTurnedOff(); 1321 } 1322 } 1323 1324 /** 1325 * Handle message sent by {@link #notifyScreenOnLocked()} 1326 * @see #NOTIFY_SCREEN_ON 1327 */ 1328 private void handleNotifyScreenOn(IKeyguardShowCallback callback) { 1329 synchronized (KeyguardViewMediator.this) { 1330 if (DEBUG) Log.d(TAG, "handleNotifyScreenOn"); 1331 mKeyguardViewManager.onScreenTurnedOn(callback); 1332 } 1333 } 1334 1335 public boolean isDismissable() { 1336 return mKeyguardDonePending || !isSecure(); 1337 } 1338 1339 public void showAssistant() { 1340 Message msg = mHandler.obtainMessage(SHOW_ASSISTANT); 1341 mHandler.sendMessage(msg); 1342 } 1343 1344 public void handleShowAssistant() { 1345 mKeyguardViewManager.showAssistant(); 1346 } 1347 1348 private boolean isAssistantAvailable() { 1349 return mSearchManager != null 1350 && mSearchManager.getAssistIntent(mContext, false, UserHandle.USER_CURRENT) != null; 1351 } 1352 1353 public static MultiUserAvatarCache getAvatarCache() { 1354 return sMultiUserAvatarCache; 1355 } 1356 1357 public void dispatch(MotionEvent event) { 1358 Message msg = mHandler.obtainMessage(DISPATCH_EVENT, event); 1359 mHandler.sendMessage(msg); 1360 } 1361 1362 public void launchCamera() { 1363 Message msg = mHandler.obtainMessage(LAUNCH_CAMERA); 1364 mHandler.sendMessage(msg); 1365 } 1366 1367 public void onBootCompleted() { 1368 mUpdateMonitor.dispatchBootCompleted(); 1369 } 1370 } 1371
