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.internal.policy.impl.keyguard; 18 19 import static android.provider.Settings.System.SCREEN_OFF_TIMEOUT; 20 21 import android.app.Activity; 22 import android.app.ActivityManagerNative; 23 import android.app.AlarmManager; 24 import android.app.PendingIntent; 25 import android.app.SearchManager; 26 import android.app.StatusBarManager; 27 import android.content.BroadcastReceiver; 28 import android.content.ContentResolver; 29 import android.content.Context; 30 import android.content.Intent; 31 import android.content.IntentFilter; 32 import android.media.AudioManager; 33 import android.media.SoundPool; 34 import android.os.Bundle; 35 import android.os.Handler; 36 import android.os.Looper; 37 import android.os.Message; 38 import android.os.PowerManager; 39 import android.os.RemoteException; 40 import android.os.SystemClock; 41 import android.os.SystemProperties; 42 import android.os.UserHandle; 43 import android.os.UserManager; 44 import android.provider.Settings; 45 import android.telephony.TelephonyManager; 46 import android.util.EventLog; 47 import android.util.Log; 48 import android.view.KeyEvent; 49 import android.view.WindowManager; 50 import android.view.WindowManagerPolicy; 51 52 import com.android.internal.telephony.IccCardConstants; 53 import com.android.internal.widget.LockPatternUtils; 54 55 56 /** 57 * Mediates requests related to the keyguard. This includes queries about the 58 * state of the keyguard, power management events that effect whether the keyguard 59 * should be shown or reset, callbacks to the phone window manager to notify 60 * it of when the keyguard is showing, and events from the keyguard view itself 61 * stating that the keyguard was succesfully unlocked. 62 * 63 * Note that the keyguard view is shown when the screen is off (as appropriate) 64 * so that once the screen comes on, it will be ready immediately. 65 * 66 * Example queries about the keyguard: 67 * - is {movement, key} one that should wake the keygaurd? 68 * - is the keyguard showing? 69 * - are input events restricted due to the state of the keyguard? 70 * 71 * Callbacks to the phone window manager: 72 * - the keyguard is showing 73 * 74 * Example external events that translate to keyguard view changes: 75 * - screen turned off -> reset the keyguard, and show it so it will be ready 76 * next time the screen turns on 77 * - keyboard is slid open -> if the keyguard is not secure, hide it 78 * 79 * Events from the keyguard view: 80 * - user succesfully unlocked keyguard -> hide keyguard view, and no longer 81 * restrict input events. 82 * 83 * Note: in addition to normal power managment events that effect the state of 84 * whether the keyguard should be showing, external apps and services may request 85 * that the keyguard be disabled via {@link #setKeyguardEnabled(boolean)}. When 86 * false, this will override all other conditions for turning on the keyguard. 87 * 88 * Threading and synchronization: 89 * This class is created by the initialization routine of the {@link WindowManagerPolicy}, 90 * and runs on its thread. The keyguard UI is created from that thread in the 91 * constructor of this class. The apis may be called from other threads, including the 92 * {@link com.android.server.input.InputManagerService}'s and {@link android.view.WindowManager}'s. 93 * Therefore, methods on this class are synchronized, and any action that is pointed 94 * directly to the keyguard UI is posted to a {@link Handler} to ensure it is taken on the UI 95 * thread of the keyguard. 96 */ 97 public class KeyguardViewMediator { 98 private static final int KEYGUARD_DISPLAY_TIMEOUT_DELAY_DEFAULT = 30000; 99 final static boolean DEBUG = false; 100 private final static boolean DBG_WAKE = false; 101 102 private final static String TAG = "KeyguardViewMediator"; 103 104 private static final String DELAYED_KEYGUARD_ACTION = 105 "com.android.internal.policy.impl.PhoneWindowManager.DELAYED_KEYGUARD"; 106 107 // used for handler messages 108 private static final int SHOW = 2; 109 private static final int HIDE = 3; 110 private static final int RESET = 4; 111 private static final int VERIFY_UNLOCK = 5; 112 private static final int NOTIFY_SCREEN_OFF = 6; 113 private static final int NOTIFY_SCREEN_ON = 7; 114 private static final int WAKE_WHEN_READY = 8; 115 private static final int KEYGUARD_DONE = 9; 116 private static final int KEYGUARD_DONE_DRAWING = 10; 117 private static final int KEYGUARD_DONE_AUTHENTICATING = 11; 118 private static final int SET_HIDDEN = 12; 119 private static final int KEYGUARD_TIMEOUT = 13; 120 private static final int SHOW_ASSISTANT = 14; 121 122 /** 123 * The default amount of time we stay awake (used for all key input) 124 */ 125 protected static final int AWAKE_INTERVAL_DEFAULT_MS = 10000; 126 127 /** 128 * How long to wait after the screen turns off due to timeout before 129 * turning on the keyguard (i.e, the user has this much time to turn 130 * the screen back on without having to face the keyguard). 131 */ 132 private static final int KEYGUARD_LOCK_AFTER_DELAY_DEFAULT = 5000; 133 134 /** 135 * How long we'll wait for the {@link ViewMediatorCallback#keyguardDoneDrawing()} 136 * callback before unblocking a call to {@link #setKeyguardEnabled(boolean)} 137 * that is reenabling the keyguard. 138 */ 139 private static final int KEYGUARD_DONE_DRAWING_TIMEOUT_MS = 2000; 140 141 /** 142 * Allow the user to expand the status bar when the keyguard is engaged 143 * (without a pattern or password). 144 */ 145 private static final boolean ENABLE_INSECURE_STATUS_BAR_EXPAND = true; 146 147 /** The stream type that the lock sounds are tied to. */ 148 private int mMasterStreamType; 149 150 private Context mContext; 151 private AlarmManager mAlarmManager; 152 private AudioManager mAudioManager; 153 private StatusBarManager mStatusBarManager; 154 private boolean mShowLockIcon; 155 private boolean mShowingLockIcon; 156 private boolean mSwitchingUser; 157 158 private boolean mSystemReady; 159 160 // Whether the next call to playSounds() should be skipped. Defaults to 161 // true because the first lock (on boot) should be silent. 162 private boolean mSuppressNextLockSound = true; 163 164 165 /** High level access to the power manager for WakeLocks */ 166 private PowerManager mPM; 167 168 /** UserManager for querying number of users */ 169 private UserManager mUserManager; 170 171 /** SearchManager for determining whether or not search assistant is available */ 172 private SearchManager mSearchManager; 173 174 /** 175 * Used to keep the device awake while to ensure the keyguard finishes opening before 176 * we sleep. 177 */ 178 private PowerManager.WakeLock mShowKeyguardWakeLock; 179 180 /** 181 * Does not turn on screen, held while a call to {@link KeyguardViewManager#wakeWhenReadyTq(int)} 182 * is called to make sure the device doesn't sleep before it has a chance to poke 183 * the wake lock. 184 * @see #wakeWhenReady(int) 185 */ 186 private PowerManager.WakeLock mWakeAndHandOff; 187 188 private KeyguardViewManager mKeyguardViewManager; 189 190 // these are protected by synchronized (this) 191 192 /** 193 * External apps (like the phone app) can tell us to disable the keygaurd. 194 */ 195 private boolean mExternallyEnabled = true; 196 197 /** 198 * Remember if an external call to {@link #setKeyguardEnabled} with value 199 * false caused us to hide the keyguard, so that we need to reshow it once 200 * the keygaurd is reenabled with another call with value true. 201 */ 202 private boolean mNeedToReshowWhenReenabled = false; 203 204 // cached value of whether we are showing (need to know this to quickly 205 // answer whether the input should be restricted) 206 private boolean mShowing = false; 207 208 // true if the keyguard is hidden by another window 209 private boolean mHidden = false; 210 211 /** 212 * Helps remember whether the screen has turned on since the last time 213 * it turned off due to timeout. see {@link #onScreenTurnedOff(int)} 214 */ 215 private int mDelayedShowingSequence; 216 217 /** 218 * If the user has disabled the keyguard, then requests to exit, this is 219 * how we'll ultimately let them know whether it was successful. We use this 220 * var being non-null as an indicator that there is an in progress request. 221 */ 222 private WindowManagerPolicy.OnKeyguardExitResult mExitSecureCallback; 223 224 // the properties of the keyguard 225 226 private KeyguardUpdateMonitor mUpdateMonitor; 227 228 private boolean mScreenOn; 229 230 // last known state of the cellular connection 231 private String mPhoneState = TelephonyManager.EXTRA_STATE_IDLE; 232 233 /** 234 * we send this intent when the keyguard is dismissed. 235 */ 236 private Intent mUserPresentIntent; 237 238 /** 239 * {@link #setKeyguardEnabled} waits on this condition when it reenables 240 * the keyguard. 241 */ 242 private boolean mWaitingUntilKeyguardVisible = false; 243 private LockPatternUtils mLockPatternUtils; 244 private boolean mKeyguardDonePending = false; 245 246 private SoundPool mLockSounds; 247 private int mLockSoundId; 248 private int mUnlockSoundId; 249 private int mLockSoundStreamId; 250 251 /** 252 * The volume applied to the lock/unlock sounds. 253 */ 254 private final float mLockSoundVolume; 255 256 /** 257 * Cache of avatar drawables, for use by KeyguardMultiUserAvatar. 258 */ 259 private static MultiUserAvatarCache sMultiUserAvatarCache = new MultiUserAvatarCache(); 260 261 /** 262 * The callback used by the keyguard view to tell the {@link KeyguardViewMediator} 263 * various things. 264 */ 265 public interface ViewMediatorCallback { 266 267 /** 268 * Wake the device immediately. 269 */ 270 void wakeUp(); 271 272 /** 273 * Reports user activity and requests that the screen stay on. 274 */ 275 void userActivity(); 276 277 /** 278 * Reports user activity and requests that the screen stay on for at least 279 * the specified amount of time. 280 * @param millis The amount of time in millis. This value is currently ignored. 281 */ 282 void userActivity(long millis); 283 284 /** 285 * Report that the keyguard is done. 286 * @param authenticated Whether the user securely got past the keyguard. 287 * the only reason for this to be false is if the keyguard was instructed 288 * to appear temporarily to verify the user is supposed to get past the 289 * keyguard, and the user fails to do so. 290 */ 291 void keyguardDone(boolean authenticated); 292 293 /** 294 * Report that the keyguard is done drawing. 295 */ 296 void keyguardDoneDrawing(); 297 298 /** 299 * Tell ViewMediator that the current view needs IME input 300 * @param needsInput 301 */ 302 void setNeedsInput(boolean needsInput); 303 304 /** 305 * Tell view mediator that the keyguard view's desired user activity timeout 306 * has changed and needs to be reapplied to the window. 307 */ 308 void onUserActivityTimeoutChanged(); 309 310 /** 311 * Report that the keyguard is dismissable, pending the next keyguardDone call. 312 */ 313 void keyguardDonePending(); 314 } 315 316 KeyguardUpdateMonitorCallback mUpdateCallback = new KeyguardUpdateMonitorCallback() { 317 318 @Override 319 public void onUserSwitching(int userId) { 320 // Note that the mLockPatternUtils user has already been updated from setCurrentUser. 321 // We need to force a reset of the views, since lockNow (called by 322 // ActivityManagerService) will not reconstruct the keyguard if it is already showing. 323 synchronized (KeyguardViewMediator.this) { 324 mSwitchingUser = true; 325 resetStateLocked(null); 326 adjustStatusBarLocked(); 327 // When we switch users we want to bring the new user to the biometric unlock even 328 // if the current user has gone to the backup. 329 KeyguardUpdateMonitor.getInstance(mContext).setAlternateUnlockEnabled(true); 330 } 331 } 332 333 @Override 334 public void onUserSwitchComplete(int userId) { 335 mSwitchingUser = false; 336 } 337 338 @Override 339 public void onUserRemoved(int userId) { 340 mLockPatternUtils.removeUser(userId); 341 sMultiUserAvatarCache.clear(userId); 342 } 343 344 @Override 345 public void onUserInfoChanged(int userId) { 346 sMultiUserAvatarCache.clear(userId); 347 } 348 349 @Override 350 void onPhoneStateChanged(int phoneState) { 351 synchronized (KeyguardViewMediator.this) { 352 if (TelephonyManager.CALL_STATE_IDLE == phoneState // call ending 353 && !mScreenOn // screen off 354 && mExternallyEnabled) { // not disabled by any app 355 356 // note: this is a way to gracefully reenable the keyguard when the call 357 // ends and the screen is off without always reenabling the keyguard 358 // each time the screen turns off while in call (and having an occasional ugly 359 // flicker while turning back on the screen and disabling the keyguard again). 360 if (DEBUG) Log.d(TAG, "screen is off and call ended, let's make sure the " 361 + "keyguard is showing"); 362 doKeyguardLocked(); 363 } 364 } 365 }; 366 367 @Override 368 public void onClockVisibilityChanged() { 369 adjustStatusBarLocked(); 370 } 371 372 @Override 373 public void onDeviceProvisioned() { 374 sendUserPresentBroadcast(); 375 } 376 377 @Override 378 public void onSimStateChanged(IccCardConstants.State simState) { 379 if (DEBUG) Log.d(TAG, "onSimStateChanged: " + simState); 380 381 switch (simState) { 382 case NOT_READY: 383 case ABSENT: 384 // only force lock screen in case of missing sim if user hasn't 385 // gone through setup wizard 386 synchronized (this) { 387 if (!mUpdateMonitor.isDeviceProvisioned()) { 388 if (!isShowing()) { 389 if (DEBUG) Log.d(TAG, "ICC_ABSENT isn't showing," 390 + " we need to show the keyguard since the " 391 + "device isn't provisioned yet."); 392 doKeyguardLocked(); 393 } else { 394 resetStateLocked(null); 395 } 396 } 397 } 398 break; 399 case PIN_REQUIRED: 400 case PUK_REQUIRED: 401 synchronized (this) { 402 if (!isShowing()) { 403 if (DEBUG) Log.d(TAG, "INTENT_VALUE_ICC_LOCKED and keygaurd isn't " 404 + "showing; need to show keyguard so user can enter sim pin"); 405 doKeyguardLocked(); 406 } else { 407 resetStateLocked(null); 408 } 409 } 410 break; 411 case PERM_DISABLED: 412 synchronized (this) { 413 if (!isShowing()) { 414 if (DEBUG) Log.d(TAG, "PERM_DISABLED and " 415 + "keygaurd isn't showing."); 416 doKeyguardLocked(); 417 } else { 418 if (DEBUG) Log.d(TAG, "PERM_DISABLED, resetStateLocked to" 419 + "show permanently disabled message in lockscreen."); 420 resetStateLocked(null); 421 } 422 } 423 break; 424 case READY: 425 synchronized (this) { 426 if (isShowing()) { 427 resetStateLocked(null); 428 } 429 } 430 break; 431 } 432 } 433 434 }; 435 436 ViewMediatorCallback mViewMediatorCallback = new ViewMediatorCallback() { 437 public void wakeUp() { 438 KeyguardViewMediator.this.wakeUp(); 439 } 440 441 public void userActivity() { 442 KeyguardViewMediator.this.userActivity(); 443 } 444 445 public void userActivity(long holdMs) { 446 KeyguardViewMediator.this.userActivity(holdMs); 447 } 448 449 public void keyguardDone(boolean authenticated) { 450 KeyguardViewMediator.this.keyguardDone(authenticated, true); 451 } 452 453 public void keyguardDoneDrawing() { 454 mHandler.sendEmptyMessage(KEYGUARD_DONE_DRAWING); 455 } 456 457 @Override 458 public void setNeedsInput(boolean needsInput) { 459 mKeyguardViewManager.setNeedsInput(needsInput); 460 } 461 462 @Override 463 public void onUserActivityTimeoutChanged() { 464 mKeyguardViewManager.updateUserActivityTimeout(); 465 } 466 467 @Override 468 public void keyguardDonePending() { 469 mKeyguardDonePending = true; 470 } 471 }; 472 473 public void wakeUp() { 474 mPM.wakeUp(SystemClock.uptimeMillis()); 475 } 476 477 public void userActivity() { 478 userActivity(AWAKE_INTERVAL_DEFAULT_MS); 479 } 480 481 public void userActivity(long holdMs) { 482 // We ignore the hold time. Eventually we should remove it. 483 // Instead, the keyguard window has an explicit user activity timeout set on it. 484 mPM.userActivity(SystemClock.uptimeMillis(), false); 485 } 486 487 /** 488 * Construct a KeyguardViewMediator 489 * @param context 490 * @param lockPatternUtils optional mock interface for LockPatternUtils 491 */ 492 public KeyguardViewMediator(Context context, LockPatternUtils lockPatternUtils) { 493 mContext = context; 494 mPM = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 495 mUserManager = (UserManager) mContext.getSystemService(Context.USER_SERVICE); 496 mShowKeyguardWakeLock = mPM.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "show keyguard"); 497 mShowKeyguardWakeLock.setReferenceCounted(false); 498 499 mWakeAndHandOff = mPM.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "keyguardWakeAndHandOff"); 500 mWakeAndHandOff.setReferenceCounted(false); 501 502 mContext.registerReceiver(mBroadcastReceiver, new IntentFilter(DELAYED_KEYGUARD_ACTION)); 503 504 mAlarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 505 506 mUpdateMonitor = KeyguardUpdateMonitor.getInstance(context); 507 508 mLockPatternUtils = lockPatternUtils != null 509 ? lockPatternUtils : new LockPatternUtils(mContext); 510 mLockPatternUtils.setCurrentUser(UserHandle.USER_OWNER); 511 512 WindowManager wm = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE); 513 514 mKeyguardViewManager = new KeyguardViewManager(context, wm, mViewMediatorCallback, 515 mLockPatternUtils); 516 517 mUserPresentIntent = new Intent(Intent.ACTION_USER_PRESENT); 518 mUserPresentIntent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING 519 | Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 520 521 final ContentResolver cr = mContext.getContentResolver(); 522 mShowLockIcon = (Settings.System.getInt(cr, "show_status_bar_lock", 0) == 1); 523 524 mScreenOn = mPM.isScreenOn(); 525 526 mLockSounds = new SoundPool(1, AudioManager.STREAM_SYSTEM, 0); 527 String soundPath = Settings.Global.getString(cr, Settings.Global.LOCK_SOUND); 528 if (soundPath != null) { 529 mLockSoundId = mLockSounds.load(soundPath, 1); 530 } 531 if (soundPath == null || mLockSoundId == 0) { 532 Log.w(TAG, "failed to load lock sound from " + soundPath); 533 } 534 soundPath = Settings.Global.getString(cr, Settings.Global.UNLOCK_SOUND); 535 if (soundPath != null) { 536 mUnlockSoundId = mLockSounds.load(soundPath, 1); 537 } 538 if (soundPath == null || mUnlockSoundId == 0) { 539 Log.w(TAG, "failed to load unlock sound from " + soundPath); 540 } 541 int lockSoundDefaultAttenuation = context.getResources().getInteger( 542 com.android.internal.R.integer.config_lockSoundVolumeDb); 543 mLockSoundVolume = (float)Math.pow(10, (float)lockSoundDefaultAttenuation/20); 544 } 545 546 /** 547 * Let us know that the system is ready after startup. 548 */ 549 public void onSystemReady() { 550 mSearchManager = (SearchManager) mContext.getSystemService(Context.SEARCH_SERVICE); 551 synchronized (this) { 552 if (DEBUG) Log.d(TAG, "onSystemReady"); 553 mSystemReady = true; 554 mUpdateMonitor.registerCallback(mUpdateCallback); 555 556 // Suppress biometric unlock right after boot until things have settled if it is the 557 // selected security method, otherwise unsuppress it. It must be unsuppressed if it is 558 // not the selected security method for the following reason: if the user starts 559 // without a screen lock selected, the biometric unlock would be suppressed the first 560 // time they try to use it. 561 // 562 // Note that the biometric unlock will still not show if it is not the selected method. 563 // Calling setAlternateUnlockEnabled(true) simply says don't suppress it if it is the 564 // selected method. 565 if (mLockPatternUtils.usingBiometricWeak() 566 && mLockPatternUtils.isBiometricWeakInstalled()) { 567 if (DEBUG) Log.d(TAG, "suppressing biometric unlock during boot"); 568 mUpdateMonitor.setAlternateUnlockEnabled(false); 569 } else { 570 mUpdateMonitor.setAlternateUnlockEnabled(true); 571 } 572 573 doKeyguardLocked(); 574 } 575 // Most services aren't available until the system reaches the ready state, so we 576 // send it here when the device first boots. 577 maybeSendUserPresentBroadcast(); 578 } 579 580 /** 581 * Called to let us know the screen was turned off. 582 * @param why either {@link WindowManagerPolicy#OFF_BECAUSE_OF_USER}, 583 * {@link WindowManagerPolicy#OFF_BECAUSE_OF_TIMEOUT} or 584 * {@link WindowManagerPolicy#OFF_BECAUSE_OF_PROX_SENSOR}. 585 */ 586 public void onScreenTurnedOff(int why) { 587 synchronized (this) { 588 mScreenOn = false; 589 if (DEBUG) Log.d(TAG, "onScreenTurnedOff(" + why + ")"); 590 591 mKeyguardDonePending = false; 592 593 // Lock immediately based on setting if secure (user has a pin/pattern/password). 594 // This also "locks" the device when not secure to provide easy access to the 595 // camera while preventing unwanted input. 596 final boolean lockImmediately = 597 mLockPatternUtils.getPowerButtonInstantlyLocks() || !mLockPatternUtils.isSecure(); 598 599 if (mExitSecureCallback != null) { 600 if (DEBUG) Log.d(TAG, "pending exit secure callback cancelled"); 601 mExitSecureCallback.onKeyguardExitResult(false); 602 mExitSecureCallback = null; 603 if (!mExternallyEnabled) { 604 hideLocked(); 605 } 606 } else if (mShowing) { 607 notifyScreenOffLocked(); 608 resetStateLocked(null); 609 } else if (why == WindowManagerPolicy.OFF_BECAUSE_OF_TIMEOUT 610 || (why == WindowManagerPolicy.OFF_BECAUSE_OF_USER && !lockImmediately)) { 611 doKeyguardLaterLocked(); 612 } else if (why == WindowManagerPolicy.OFF_BECAUSE_OF_PROX_SENSOR) { 613 // Do not enable the keyguard if the prox sensor forced the screen off. 614 } else { 615 doKeyguardLocked(); 616 } 617 } 618 } 619 620 private void doKeyguardLaterLocked() { 621 // if the screen turned off because of timeout or the user hit the power button 622 // and we don't need to lock immediately, set an alarm 623 // to enable it a little bit later (i.e, give the user a chance 624 // to turn the screen back on within a certain window without 625 // having to unlock the screen) 626 final ContentResolver cr = mContext.getContentResolver(); 627 628 // From DisplaySettings 629 long displayTimeout = Settings.System.getInt(cr, SCREEN_OFF_TIMEOUT, 630 KEYGUARD_DISPLAY_TIMEOUT_DELAY_DEFAULT); 631 632 // From SecuritySettings 633 final long lockAfterTimeout = Settings.Secure.getInt(cr, 634 Settings.Secure.LOCK_SCREEN_LOCK_AFTER_TIMEOUT, 635 KEYGUARD_LOCK_AFTER_DELAY_DEFAULT); 636 637 // From DevicePolicyAdmin 638 final long policyTimeout = mLockPatternUtils.getDevicePolicyManager() 639 .getMaximumTimeToLock(null, mLockPatternUtils.getCurrentUser()); 640 641 long timeout; 642 if (policyTimeout > 0) { 643 // policy in effect. Make sure we don't go beyond policy limit. 644 displayTimeout = Math.max(displayTimeout, 0); // ignore negative values 645 timeout = Math.min(policyTimeout - displayTimeout, lockAfterTimeout); 646 } else { 647 timeout = lockAfterTimeout; 648 } 649 650 if (timeout <= 0) { 651 // Lock now 652 mSuppressNextLockSound = true; 653 doKeyguardLocked(); 654 } else { 655 // Lock in the future 656 long when = SystemClock.elapsedRealtime() + timeout; 657 Intent intent = new Intent(DELAYED_KEYGUARD_ACTION); 658 intent.putExtra("seq", mDelayedShowingSequence); 659 PendingIntent sender = PendingIntent.getBroadcast(mContext, 660 0, intent, PendingIntent.FLAG_CANCEL_CURRENT); 661 mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, when, sender); 662 if (DEBUG) Log.d(TAG, "setting alarm to turn off keyguard, seq = " 663 + mDelayedShowingSequence); 664 } 665 } 666 667 private void cancelDoKeyguardLaterLocked() { 668 mDelayedShowingSequence++; 669 } 670 671 /** 672 * Let's us know the screen was turned on. 673 */ 674 public void onScreenTurnedOn(KeyguardViewManager.ShowListener showListener) { 675 synchronized (this) { 676 mScreenOn = true; 677 cancelDoKeyguardLaterLocked(); 678 if (DEBUG) Log.d(TAG, "onScreenTurnedOn, seq = " + mDelayedShowingSequence); 679 if (showListener != null) { 680 notifyScreenOnLocked(showListener); 681 } 682 } 683 maybeSendUserPresentBroadcast(); 684 } 685 686 private void maybeSendUserPresentBroadcast() { 687 if (mSystemReady && mLockPatternUtils.isLockScreenDisabled() 688 && mUserManager.getUsers(true).size() == 1) { 689 // Lock screen is disabled because the user has set the preference to "None". 690 // In this case, send out ACTION_USER_PRESENT here instead of in 691 // handleKeyguardDone() 692 sendUserPresentBroadcast(); 693 } 694 } 695 696 /** 697 * A dream started. We should lock after the usual screen-off lock timeout but only 698 * if there is a secure lock pattern. 699 */ 700 public void onDreamingStarted() { 701 synchronized (this) { 702 if (mScreenOn && mLockPatternUtils.isSecure()) { 703 doKeyguardLaterLocked(); 704 } 705 } 706 } 707 708 /** 709 * A dream stopped. 710 */ 711 public void onDreamingStopped() { 712 synchronized (this) { 713 if (mScreenOn) { 714 cancelDoKeyguardLaterLocked(); 715 } 716 } 717 } 718 719 /** 720 * Same semantics as {@link WindowManagerPolicy#enableKeyguard}; provide 721 * a way for external stuff to override normal keyguard behavior. For instance 722 * the phone app disables the keyguard when it receives incoming calls. 723 */ 724 public void setKeyguardEnabled(boolean enabled) { 725 synchronized (this) { 726 if (DEBUG) Log.d(TAG, "setKeyguardEnabled(" + enabled + ")"); 727 728 mExternallyEnabled = enabled; 729 730 if (!enabled && mShowing) { 731 if (mExitSecureCallback != null) { 732 if (DEBUG) Log.d(TAG, "in process of verifyUnlock request, ignoring"); 733 // we're in the process of handling a request to verify the user 734 // can get past the keyguard. ignore extraneous requests to disable / reenable 735 return; 736 } 737 738 // hiding keyguard that is showing, remember to reshow later 739 if (DEBUG) Log.d(TAG, "remembering to reshow, hiding keyguard, " 740 + "disabling status bar expansion"); 741 mNeedToReshowWhenReenabled = true; 742 hideLocked(); 743 } else if (enabled && mNeedToReshowWhenReenabled) { 744 // reenabled after previously hidden, reshow 745 if (DEBUG) Log.d(TAG, "previously hidden, reshowing, reenabling " 746 + "status bar expansion"); 747 mNeedToReshowWhenReenabled = false; 748 749 if (mExitSecureCallback != null) { 750 if (DEBUG) Log.d(TAG, "onKeyguardExitResult(false), resetting"); 751 mExitSecureCallback.onKeyguardExitResult(false); 752 mExitSecureCallback = null; 753 resetStateLocked(null); 754 } else { 755 showLocked(null); 756 757 // block until we know the keygaurd is done drawing (and post a message 758 // to unblock us after a timeout so we don't risk blocking too long 759 // and causing an ANR). 760 mWaitingUntilKeyguardVisible = true; 761 mHandler.sendEmptyMessageDelayed(KEYGUARD_DONE_DRAWING, KEYGUARD_DONE_DRAWING_TIMEOUT_MS); 762 if (DEBUG) Log.d(TAG, "waiting until mWaitingUntilKeyguardVisible is false"); 763 while (mWaitingUntilKeyguardVisible) { 764 try { 765 wait(); 766 } catch (InterruptedException e) { 767 Thread.currentThread().interrupt(); 768 } 769 } 770 if (DEBUG) Log.d(TAG, "done waiting for mWaitingUntilKeyguardVisible"); 771 } 772 } 773 } 774 } 775 776 /** 777 * @see android.app.KeyguardManager#exitKeyguardSecurely 778 */ 779 public void verifyUnlock(WindowManagerPolicy.OnKeyguardExitResult callback) { 780 synchronized (this) { 781 if (DEBUG) Log.d(TAG, "verifyUnlock"); 782 if (!mUpdateMonitor.isDeviceProvisioned()) { 783 // don't allow this api when the device isn't provisioned 784 if (DEBUG) Log.d(TAG, "ignoring because device isn't provisioned"); 785 callback.onKeyguardExitResult(false); 786 } else if (mExternallyEnabled) { 787 // this only applies when the user has externally disabled the 788 // keyguard. this is unexpected and means the user is not 789 // using the api properly. 790 Log.w(TAG, "verifyUnlock called when not externally disabled"); 791 callback.onKeyguardExitResult(false); 792 } else if (mExitSecureCallback != null) { 793 // already in progress with someone else 794 callback.onKeyguardExitResult(false); 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 private void doKeyguardLocked() { 860 doKeyguardLocked(null); 861 } 862 863 /** 864 * Enable the keyguard if the settings are appropriate. 865 */ 866 private void doKeyguardLocked(Bundle options) { 867 // if another app is disabling us, don't show 868 if (!mExternallyEnabled) { 869 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because externally disabled"); 870 871 // note: we *should* set mNeedToReshowWhenReenabled=true here, but that makes 872 // for an occasional ugly flicker in this situation: 873 // 1) receive a call with the screen on (no keyguard) or make a call 874 // 2) screen times out 875 // 3) user hits key to turn screen back on 876 // instead, we reenable the keyguard when we know the screen is off and the call 877 // ends (see the broadcast receiver below) 878 // TODO: clean this up when we have better support at the window manager level 879 // for apps that wish to be on top of the keyguard 880 return; 881 } 882 883 // if the keyguard is already showing, don't bother 884 if (mKeyguardViewManager.isShowing()) { 885 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because it is already showing"); 886 return; 887 } 888 889 // if the setup wizard hasn't run yet, don't show 890 final boolean requireSim = !SystemProperties.getBoolean("keyguard.no_require_sim", 891 false); 892 final boolean provisioned = mUpdateMonitor.isDeviceProvisioned(); 893 final IccCardConstants.State state = mUpdateMonitor.getSimState(); 894 final boolean lockedOrMissing = state.isPinLocked() 895 || ((state == IccCardConstants.State.ABSENT 896 || state == IccCardConstants.State.PERM_DISABLED) 897 && requireSim); 898 899 if (!lockedOrMissing && !provisioned) { 900 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because device isn't provisioned" 901 + " and the sim is not locked or missing"); 902 return; 903 } 904 905 if (mUserManager.getUsers(true).size() < 2 906 && mLockPatternUtils.isLockScreenDisabled() && !lockedOrMissing) { 907 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because lockscreen is off"); 908 return; 909 } 910 911 if (DEBUG) Log.d(TAG, "doKeyguard: showing the lock screen"); 912 showLocked(options); 913 } 914 915 /** 916 * Dismiss the keyguard through the security layers. 917 */ 918 public void dismiss() { 919 if (mShowing && !mHidden) { 920 mKeyguardViewManager.dismiss(); 921 } 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(KeyguardViewManager.ShowListener showListener) { 961 if (DEBUG) Log.d(TAG, "notifyScreenOnLocked"); 962 Message msg = mHandler.obtainMessage(NOTIFY_SCREEN_ON, showListener); 963 mHandler.sendMessage(msg); 964 } 965 966 /** 967 * Send message to keyguard telling it about a wake key so it can adjust 968 * its state accordingly and then poke the wake lock when it is ready. 969 * @param keyCode The wake key. 970 * @see #handleWakeWhenReady 971 * @see #onWakeKeyWhenKeyguardShowingTq(int) 972 */ 973 private void wakeWhenReady(int keyCode) { 974 if (DBG_WAKE) Log.d(TAG, "wakeWhenReady(" + keyCode + ")"); 975 976 /** 977 * acquire the handoff lock that will keep the cpu running. this will 978 * be released once the keyguard has set itself up and poked the other wakelock 979 * in {@link #handleWakeWhenReady(int)} 980 */ 981 mWakeAndHandOff.acquire(); 982 983 Message msg = mHandler.obtainMessage(WAKE_WHEN_READY, keyCode, 0); 984 mHandler.sendMessage(msg); 985 } 986 987 /** 988 * Send message to keyguard telling it to show itself 989 * @see #handleShow() 990 */ 991 private void showLocked(Bundle options) { 992 if (DEBUG) Log.d(TAG, "showLocked"); 993 // ensure we stay awake until we are finished displaying the keyguard 994 mShowKeyguardWakeLock.acquire(); 995 Message msg = mHandler.obtainMessage(SHOW, options); 996 mHandler.sendMessage(msg); 997 } 998 999 /** 1000 * Send message to keyguard telling it to hide itself 1001 * @see #handleHide() 1002 */ 1003 private void hideLocked() { 1004 if (DEBUG) Log.d(TAG, "hideLocked"); 1005 Message msg = mHandler.obtainMessage(HIDE); 1006 mHandler.sendMessage(msg); 1007 } 1008 1009 public boolean isSecure() { 1010 return mLockPatternUtils.isSecure() 1011 || KeyguardUpdateMonitor.getInstance(mContext).isSimPinSecure(); 1012 } 1013 1014 /** 1015 * Update the newUserId. Call while holding WindowManagerService lock. 1016 * NOTE: Should only be called by KeyguardViewMediator in response to the user id changing. 1017 * 1018 * @param newUserId The id of the incoming user. 1019 */ 1020 public void setCurrentUser(int newUserId) { 1021 mLockPatternUtils.setCurrentUser(newUserId); 1022 } 1023 1024 private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { 1025 @Override 1026 public void onReceive(Context context, Intent intent) { 1027 if (DELAYED_KEYGUARD_ACTION.equals(intent.getAction())) { 1028 final int sequence = intent.getIntExtra("seq", 0); 1029 if (DEBUG) Log.d(TAG, "received DELAYED_KEYGUARD_ACTION with seq = " 1030 + sequence + ", mDelayedShowingSequence = " + mDelayedShowingSequence); 1031 synchronized (KeyguardViewMediator.this) { 1032 if (mDelayedShowingSequence == sequence) { 1033 // Don't play lockscreen SFX if the screen went off due to timeout. 1034 mSuppressNextLockSound = true; 1035 doKeyguardLocked(); 1036 } 1037 } 1038 } 1039 } 1040 }; 1041 1042 /** 1043 * When a key is received when the screen is off and the keyguard is showing, 1044 * we need to decide whether to actually turn on the screen, and if so, tell 1045 * the keyguard to prepare itself and poke the wake lock when it is ready. 1046 * 1047 * The 'Tq' suffix is per the documentation in {@link WindowManagerPolicy}. 1048 * Be sure not to take any action that takes a long time; any significant 1049 * action should be posted to a handler. 1050 * 1051 * @param keyCode The keycode of the key that woke the device 1052 */ 1053 public void onWakeKeyWhenKeyguardShowingTq(int keyCode) { 1054 if (DEBUG) Log.d(TAG, "onWakeKeyWhenKeyguardShowing(" + keyCode + ")"); 1055 1056 // give the keyguard view manager a chance to adjust the state of the 1057 // keyguard based on the key that woke the device before poking 1058 // the wake lock 1059 wakeWhenReady(keyCode); 1060 } 1061 1062 /** 1063 * When a wake motion such as an external mouse movement is received when the screen 1064 * is off and the keyguard is showing, we need to decide whether to actually turn 1065 * on the screen, and if so, tell the keyguard to prepare itself and poke the wake 1066 * lock when it is ready. 1067 * 1068 * The 'Tq' suffix is per the documentation in {@link WindowManagerPolicy}. 1069 * Be sure not to take any action that takes a long time; any significant 1070 * action should be posted to a handler. 1071 */ 1072 public void onWakeMotionWhenKeyguardShowingTq() { 1073 if (DEBUG) Log.d(TAG, "onWakeMotionWhenKeyguardShowing()"); 1074 1075 // give the keyguard view manager a chance to adjust the state of the 1076 // keyguard based on the key that woke the device before poking 1077 // the wake lock 1078 wakeWhenReady(KeyEvent.KEYCODE_UNKNOWN); 1079 } 1080 1081 public void keyguardDone(boolean authenticated, boolean wakeup) { 1082 mKeyguardDonePending = false; 1083 synchronized (this) { 1084 EventLog.writeEvent(70000, 2); 1085 if (DEBUG) Log.d(TAG, "keyguardDone(" + authenticated + ")"); 1086 Message msg = mHandler.obtainMessage(KEYGUARD_DONE); 1087 msg.arg1 = wakeup ? 1 : 0; 1088 mHandler.sendMessage(msg); 1089 1090 if (authenticated) { 1091 mUpdateMonitor.clearFailedUnlockAttempts(); 1092 } 1093 1094 if (mExitSecureCallback != null) { 1095 mExitSecureCallback.onKeyguardExitResult(authenticated); 1096 mExitSecureCallback = null; 1097 1098 if (authenticated) { 1099 // after succesfully exiting securely, no need to reshow 1100 // the keyguard when they've released the lock 1101 mExternallyEnabled = true; 1102 mNeedToReshowWhenReenabled = false; 1103 } 1104 } 1105 } 1106 } 1107 1108 /** 1109 * This handler will be associated with the policy thread, which will also 1110 * be the UI thread of the keyguard. Since the apis of the policy, and therefore 1111 * this class, can be called by other threads, any action that directly 1112 * interacts with the keyguard ui should be posted to this handler, rather 1113 * than called directly. 1114 */ 1115 private Handler mHandler = new Handler(Looper.myLooper(), null, true /*async*/) { 1116 @Override 1117 public void handleMessage(Message msg) { 1118 switch (msg.what) { 1119 case SHOW: 1120 handleShow((Bundle) msg.obj); 1121 return ; 1122 case HIDE: 1123 handleHide(); 1124 return ; 1125 case RESET: 1126 handleReset((Bundle) msg.obj); 1127 return ; 1128 case VERIFY_UNLOCK: 1129 handleVerifyUnlock(); 1130 return; 1131 case NOTIFY_SCREEN_OFF: 1132 handleNotifyScreenOff(); 1133 return; 1134 case NOTIFY_SCREEN_ON: 1135 handleNotifyScreenOn((KeyguardViewManager.ShowListener)msg.obj); 1136 return; 1137 case WAKE_WHEN_READY: 1138 handleWakeWhenReady(msg.arg1); 1139 return; 1140 case KEYGUARD_DONE: 1141 handleKeyguardDone(msg.arg1 != 0); 1142 return; 1143 case KEYGUARD_DONE_DRAWING: 1144 handleKeyguardDoneDrawing(); 1145 return; 1146 case KEYGUARD_DONE_AUTHENTICATING: 1147 keyguardDone(true, true); 1148 return; 1149 case SET_HIDDEN: 1150 handleSetHidden(msg.arg1 != 0); 1151 break; 1152 case KEYGUARD_TIMEOUT: 1153 synchronized (KeyguardViewMediator.this) { 1154 doKeyguardLocked((Bundle) msg.obj); 1155 } 1156 break; 1157 case SHOW_ASSISTANT: 1158 handleShowAssistant(); 1159 break; 1160 } 1161 } 1162 }; 1163 1164 /** 1165 * @see #keyguardDone 1166 * @see #KEYGUARD_DONE 1167 */ 1168 private void handleKeyguardDone(boolean wakeup) { 1169 if (DEBUG) Log.d(TAG, "handleKeyguardDone"); 1170 handleHide(); 1171 if (wakeup) { 1172 wakeUp(); 1173 } 1174 1175 sendUserPresentBroadcast(); 1176 } 1177 1178 private void sendUserPresentBroadcast() { 1179 if (!(mContext instanceof Activity)) { 1180 final UserHandle currentUser = new UserHandle(mLockPatternUtils.getCurrentUser()); 1181 mContext.sendBroadcastAsUser(mUserPresentIntent, currentUser); 1182 } 1183 } 1184 1185 /** 1186 * @see #keyguardDoneDrawing 1187 * @see #KEYGUARD_DONE_DRAWING 1188 */ 1189 private void handleKeyguardDoneDrawing() { 1190 synchronized(this) { 1191 if (false) Log.d(TAG, "handleKeyguardDoneDrawing"); 1192 if (mWaitingUntilKeyguardVisible) { 1193 if (DEBUG) Log.d(TAG, "handleKeyguardDoneDrawing: notifying mWaitingUntilKeyguardVisible"); 1194 mWaitingUntilKeyguardVisible = false; 1195 notifyAll(); 1196 1197 // there will usually be two of these sent, one as a timeout, and one 1198 // as a result of the callback, so remove any remaining messages from 1199 // the queue 1200 mHandler.removeMessages(KEYGUARD_DONE_DRAWING); 1201 } 1202 } 1203 } 1204 1205 private void playSounds(boolean locked) { 1206 // User feedback for keyguard. 1207 1208 if (mSuppressNextLockSound) { 1209 mSuppressNextLockSound = false; 1210 return; 1211 } 1212 1213 final ContentResolver cr = mContext.getContentResolver(); 1214 if (Settings.System.getInt(cr, Settings.System.LOCKSCREEN_SOUNDS_ENABLED, 1) == 1) { 1215 final int whichSound = locked 1216 ? mLockSoundId 1217 : mUnlockSoundId; 1218 mLockSounds.stop(mLockSoundStreamId); 1219 // Init mAudioManager 1220 if (mAudioManager == null) { 1221 mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 1222 if (mAudioManager == null) return; 1223 mMasterStreamType = mAudioManager.getMasterStreamType(); 1224 } 1225 // If the stream is muted, don't play the sound 1226 if (mAudioManager.isStreamMute(mMasterStreamType)) return; 1227 1228 mLockSoundStreamId = mLockSounds.play(whichSound, 1229 mLockSoundVolume, mLockSoundVolume, 1/*priortiy*/, 0/*loop*/, 1.0f/*rate*/); 1230 } 1231 } 1232 1233 private void updateActivityLockScreenState() { 1234 try { 1235 ActivityManagerNative.getDefault().setLockScreenShown( 1236 mShowing && !mHidden); 1237 } catch (RemoteException e) { 1238 } 1239 } 1240 1241 /** 1242 * Handle message sent by {@link #showLocked}. 1243 * @see #SHOW 1244 */ 1245 private void handleShow(Bundle options) { 1246 synchronized (KeyguardViewMediator.this) { 1247 if (DEBUG) Log.d(TAG, "handleShow"); 1248 if (!mSystemReady) return; 1249 1250 mKeyguardViewManager.show(options); 1251 mShowing = true; 1252 mKeyguardDonePending = false; 1253 updateActivityLockScreenState(); 1254 adjustStatusBarLocked(); 1255 userActivity(); 1256 try { 1257 ActivityManagerNative.getDefault().closeSystemDialogs("lock"); 1258 } catch (RemoteException e) { 1259 } 1260 1261 // Do this at the end to not slow down display of the keyguard. 1262 playSounds(true); 1263 1264 mShowKeyguardWakeLock.release(); 1265 } 1266 } 1267 1268 /** 1269 * Handle message sent by {@link #hideLocked()} 1270 * @see #HIDE 1271 */ 1272 private void handleHide() { 1273 synchronized (KeyguardViewMediator.this) { 1274 if (DEBUG) Log.d(TAG, "handleHide"); 1275 if (mWakeAndHandOff.isHeld()) { 1276 Log.w(TAG, "attempt to hide the keyguard while waking, ignored"); 1277 return; 1278 } 1279 1280 // only play "unlock" noises if not on a call (since the incall UI 1281 // disables the keyguard) 1282 if (TelephonyManager.EXTRA_STATE_IDLE.equals(mPhoneState)) { 1283 playSounds(false); 1284 } 1285 1286 mKeyguardViewManager.hide(); 1287 mShowing = false; 1288 mKeyguardDonePending = false; 1289 updateActivityLockScreenState(); 1290 adjustStatusBarLocked(); 1291 } 1292 } 1293 1294 private void adjustStatusBarLocked() { 1295 if (mStatusBarManager == null) { 1296 mStatusBarManager = (StatusBarManager) 1297 mContext.getSystemService(Context.STATUS_BAR_SERVICE); 1298 } 1299 if (mStatusBarManager == null) { 1300 Log.w(TAG, "Could not get status bar manager"); 1301 } else { 1302 if (mShowLockIcon) { 1303 // Give feedback to user when secure keyguard is active and engaged 1304 if (mShowing && isSecure()) { 1305 if (!mShowingLockIcon) { 1306 String contentDescription = mContext.getString( 1307 com.android.internal.R.string.status_bar_device_locked); 1308 mStatusBarManager.setIcon("secure", 1309 com.android.internal.R.drawable.stat_sys_secure, 0, 1310 contentDescription); 1311 mShowingLockIcon = true; 1312 } 1313 } else { 1314 if (mShowingLockIcon) { 1315 mStatusBarManager.removeIcon("secure"); 1316 mShowingLockIcon = false; 1317 } 1318 } 1319 } 1320 1321 // Disable aspects of the system/status/navigation bars that must not be re-enabled by 1322 // windows that appear on top, ever 1323 int flags = StatusBarManager.DISABLE_NONE; 1324 if (mShowing) { 1325 // Permanently disable components not available when keyguard is enabled 1326 // (like recents). Temporary enable/disable (e.g. the "back" button) are 1327 // done in KeyguardHostView. 1328 flags |= StatusBarManager.DISABLE_RECENT; 1329 if (isSecure() || !ENABLE_INSECURE_STATUS_BAR_EXPAND) { 1330 // showing secure lockscreen; disable expanding. 1331 flags |= StatusBarManager.DISABLE_EXPAND; 1332 } 1333 if (isSecure()) { 1334 // showing secure lockscreen; disable ticker. 1335 flags |= StatusBarManager.DISABLE_NOTIFICATION_TICKER; 1336 } 1337 if (!isAssistantAvailable()) { 1338 flags |= StatusBarManager.DISABLE_SEARCH; 1339 } 1340 } 1341 1342 if (DEBUG) { 1343 Log.d(TAG, "adjustStatusBarLocked: mShowing=" + mShowing + " mHidden=" + mHidden 1344 + " isSecure=" + isSecure() + " --> flags=0x" + Integer.toHexString(flags)); 1345 } 1346 1347 if (!(mContext instanceof Activity)) { 1348 mStatusBarManager.disable(flags); 1349 } 1350 } 1351 } 1352 1353 /** 1354 * Handle message sent by {@link #wakeWhenReady(int)} 1355 * @param keyCode The key that woke the device. 1356 * @see #WAKE_WHEN_READY 1357 */ 1358 private void handleWakeWhenReady(int keyCode) { 1359 synchronized (KeyguardViewMediator.this) { 1360 if (DBG_WAKE) Log.d(TAG, "handleWakeWhenReady(" + keyCode + ")"); 1361 1362 // this should result in a call to 'poke wakelock' which will set a timeout 1363 // on releasing the wakelock 1364 if (!mKeyguardViewManager.wakeWhenReadyTq(keyCode)) { 1365 // poke wakelock ourselves if keyguard is no longer active 1366 Log.w(TAG, "mKeyguardViewManager.wakeWhenReadyTq did not poke wake lock, so poke it ourselves"); 1367 userActivity(); 1368 } 1369 1370 /** 1371 * Now that the keyguard is ready and has poked the wake lock, we can 1372 * release the handoff wakelock 1373 */ 1374 mWakeAndHandOff.release(); 1375 } 1376 } 1377 1378 /** 1379 * Handle message sent by {@link #resetStateLocked(Bundle)} 1380 * @see #RESET 1381 */ 1382 private void handleReset(Bundle options) { 1383 if (options == null) { 1384 options = new Bundle(); 1385 } 1386 options.putBoolean(KeyguardViewManager.IS_SWITCHING_USER, mSwitchingUser); 1387 synchronized (KeyguardViewMediator.this) { 1388 if (DEBUG) Log.d(TAG, "handleReset"); 1389 mKeyguardViewManager.reset(options); 1390 } 1391 } 1392 1393 /** 1394 * Handle message sent by {@link #verifyUnlock} 1395 * @see #VERIFY_UNLOCK 1396 */ 1397 private void handleVerifyUnlock() { 1398 synchronized (KeyguardViewMediator.this) { 1399 if (DEBUG) Log.d(TAG, "handleVerifyUnlock"); 1400 mKeyguardViewManager.verifyUnlock(); 1401 mShowing = true; 1402 updateActivityLockScreenState(); 1403 } 1404 } 1405 1406 /** 1407 * Handle message sent by {@link #notifyScreenOffLocked()} 1408 * @see #NOTIFY_SCREEN_OFF 1409 */ 1410 private void handleNotifyScreenOff() { 1411 synchronized (KeyguardViewMediator.this) { 1412 if (DEBUG) Log.d(TAG, "handleNotifyScreenOff"); 1413 mKeyguardViewManager.onScreenTurnedOff(); 1414 } 1415 } 1416 1417 /** 1418 * Handle message sent by {@link #notifyScreenOnLocked()} 1419 * @see #NOTIFY_SCREEN_ON 1420 */ 1421 private void handleNotifyScreenOn(KeyguardViewManager.ShowListener showListener) { 1422 synchronized (KeyguardViewMediator.this) { 1423 if (DEBUG) Log.d(TAG, "handleNotifyScreenOn"); 1424 mKeyguardViewManager.onScreenTurnedOn(showListener); 1425 } 1426 } 1427 1428 public boolean isDismissable() { 1429 return mKeyguardDonePending || !isSecure(); 1430 } 1431 1432 public void showAssistant() { 1433 Message msg = mHandler.obtainMessage(SHOW_ASSISTANT); 1434 mHandler.sendMessage(msg); 1435 } 1436 1437 public void handleShowAssistant() { 1438 mKeyguardViewManager.showAssistant(); 1439 } 1440 1441 private boolean isAssistantAvailable() { 1442 return mSearchManager != null 1443 && mSearchManager.getAssistIntent(mContext, false, UserHandle.USER_CURRENT) != null; 1444 } 1445 1446 public static MultiUserAvatarCache getAvatarCache() { 1447 return sMultiUserAvatarCache; 1448 } 1449 } 1450
