1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.internal.policy.impl.keyguard; 18 19import static android.provider.Settings.System.SCREEN_OFF_TIMEOUT; 20 21import android.app.Activity; 22import android.app.ActivityManagerNative; 23import android.app.AlarmManager; 24import android.app.PendingIntent; 25import android.app.SearchManager; 26import android.app.StatusBarManager; 27import android.content.BroadcastReceiver; 28import android.content.ContentResolver; 29import android.content.Context; 30import android.content.Intent; 31import android.content.IntentFilter; 32import android.media.AudioManager; 33import android.media.SoundPool; 34import android.os.Bundle; 35import android.os.Handler; 36import android.os.Looper; 37import android.os.Message; 38import android.os.PowerManager; 39import android.os.RemoteException; 40import android.os.SystemClock; 41import android.os.SystemProperties; 42import android.os.UserHandle; 43import android.os.UserManager; 44import android.provider.Settings; 45import android.telephony.TelephonyManager; 46import android.util.EventLog; 47import android.util.Log; 48import android.view.KeyEvent; 49import android.view.WindowManager; 50import android.view.WindowManagerPolicy; 51 52import com.android.internal.telephony.IccCardConstants; 53import 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 */ 97public 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; 156 157 private boolean mSystemReady; 158 159 // Whether the next call to playSounds() should be skipped. Defaults to 160 // true because the first lock (on boot) should be silent. 161 private boolean mSuppressNextLockSound = true; 162 163 164 /** High level access to the power manager for WakeLocks */ 165 private PowerManager mPM; 166 167 /** UserManager for querying number of users */ 168 private UserManager mUserManager; 169 170 /** SearchManager for determining whether or not search assistant is available */ 171 private SearchManager mSearchManager; 172 173 /** 174 * Used to keep the device awake while to ensure the keyguard finishes opening before 175 * we sleep. 176 */ 177 private PowerManager.WakeLock mShowKeyguardWakeLock; 178 179 /** 180 * Does not turn on screen, held while a call to {@link KeyguardViewManager#wakeWhenReadyTq(int)} 181 * is called to make sure the device doesn't sleep before it has a chance to poke 182 * the wake lock. 183 * @see #wakeWhenReady(int) 184 */ 185 private PowerManager.WakeLock mWakeAndHandOff; 186 187 private KeyguardViewManager mKeyguardViewManager; 188 189 // these are protected by synchronized (this) 190 191 /** 192 * External apps (like the phone app) can tell us to disable the keygaurd. 193 */ 194 private boolean mExternallyEnabled = true; 195 196 /** 197 * Remember if an external call to {@link #setKeyguardEnabled} with value 198 * false caused us to hide the keyguard, so that we need to reshow it once 199 * the keygaurd is reenabled with another call with value true. 200 */ 201 private boolean mNeedToReshowWhenReenabled = false; 202 203 // cached value of whether we are showing (need to know this to quickly 204 // answer whether the input should be restricted) 205 private boolean mShowing = false; 206 207 // true if the keyguard is hidden by another window 208 private boolean mHidden = false; 209 210 /** 211 * Helps remember whether the screen has turned on since the last time 212 * it turned off due to timeout. see {@link #onScreenTurnedOff(int)} 213 */ 214 private int mDelayedShowingSequence; 215 216 /** 217 * If the user has disabled the keyguard, then requests to exit, this is 218 * how we'll ultimately let them know whether it was successful. We use this 219 * var being non-null as an indicator that there is an in progress request. 220 */ 221 private WindowManagerPolicy.OnKeyguardExitResult mExitSecureCallback; 222 223 // the properties of the keyguard 224 225 private KeyguardUpdateMonitor mUpdateMonitor; 226 227 private boolean mScreenOn; 228 229 // last known state of the cellular connection 230 private String mPhoneState = TelephonyManager.EXTRA_STATE_IDLE; 231 232 /** 233 * we send this intent when the keyguard is dismissed. 234 */ 235 private Intent mUserPresentIntent; 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 * The callback used by the keyguard view to tell the {@link KeyguardViewMediator} 257 * various things. 258 */ 259 public interface ViewMediatorCallback { 260 261 /** 262 * Wake the device immediately. 263 */ 264 void wakeUp(); 265 266 /** 267 * Reports user activity and requests that the screen stay on. 268 */ 269 void userActivity(); 270 271 /** 272 * Reports user activity and requests that the screen stay on for at least 273 * the specified amount of time. 274 * @param millis The amount of time in millis. This value is currently ignored. 275 */ 276 void userActivity(long millis); 277 278 /** 279 * Report that the keyguard is done. 280 * @param authenticated Whether the user securely got past the keyguard. 281 * the only reason for this to be false is if the keyguard was instructed 282 * to appear temporarily to verify the user is supposed to get past the 283 * keyguard, and the user fails to do so. 284 */ 285 void keyguardDone(boolean authenticated); 286 287 /** 288 * Report that the keyguard is done drawing. 289 */ 290 void keyguardDoneDrawing(); 291 292 /** 293 * Tell ViewMediator that the current view needs IME input 294 * @param needsInput 295 */ 296 void setNeedsInput(boolean needsInput); 297 298 /** 299 * Tell view mediator that the keyguard view's desired user activity timeout 300 * has changed and needs to be reapplied to the window. 301 */ 302 void onUserActivityTimeoutChanged(); 303 304 /** 305 * Report that the keyguard is dismissable, pending the next keyguardDone call. 306 */ 307 void keyguardDonePending(); 308 } 309 310 KeyguardUpdateMonitorCallback mUpdateCallback = new KeyguardUpdateMonitorCallback() { 311 312 @Override 313 public void onUserSwitched(int userId) { 314 // Note that the mLockPatternUtils user has already been updated from setCurrentUser. 315 // We need to force a reset of the views, since lockNow (called by 316 // ActivityManagerService) will not reconstruct the keyguard if it is already showing. 317 synchronized (KeyguardViewMediator.this) { 318 resetStateLocked(null); 319 adjustStatusBarLocked(); 320 // Disable face unlock when the user switches. 321 KeyguardUpdateMonitor.getInstance(mContext).setAlternateUnlockEnabled(false); 322 } 323 } 324 325 @Override 326 public void onUserRemoved(int userId) { 327 mLockPatternUtils.removeUser(userId); 328 } 329 330 @Override 331 void onPhoneStateChanged(int phoneState) { 332 synchronized (KeyguardViewMediator.this) { 333 if (TelephonyManager.CALL_STATE_IDLE == phoneState // call ending 334 && !mScreenOn // screen off 335 && mExternallyEnabled) { // not disabled by any app 336 337 // note: this is a way to gracefully reenable the keyguard when the call 338 // ends and the screen is off without always reenabling the keyguard 339 // each time the screen turns off while in call (and having an occasional ugly 340 // flicker while turning back on the screen and disabling the keyguard again). 341 if (DEBUG) Log.d(TAG, "screen is off and call ended, let's make sure the " 342 + "keyguard is showing"); 343 doKeyguardLocked(); 344 } 345 } 346 }; 347 348 @Override 349 public void onClockVisibilityChanged() { 350 adjustStatusBarLocked(); 351 } 352 353 @Override 354 public void onDeviceProvisioned() { 355 sendUserPresentBroadcast(); 356 } 357 358 @Override 359 public void onSimStateChanged(IccCardConstants.State simState) { 360 if (DEBUG) Log.d(TAG, "onSimStateChanged: " + simState); 361 362 switch (simState) { 363 case NOT_READY: 364 case ABSENT: 365 // only force lock screen in case of missing sim if user hasn't 366 // gone through setup wizard 367 synchronized (this) { 368 if (!mUpdateMonitor.isDeviceProvisioned()) { 369 if (!isShowing()) { 370 if (DEBUG) Log.d(TAG, "ICC_ABSENT isn't showing," 371 + " we need to show the keyguard since the " 372 + "device isn't provisioned yet."); 373 doKeyguardLocked(); 374 } else { 375 resetStateLocked(null); 376 } 377 } 378 } 379 break; 380 case PIN_REQUIRED: 381 case PUK_REQUIRED: 382 synchronized (this) { 383 if (!isShowing()) { 384 if (DEBUG) Log.d(TAG, "INTENT_VALUE_ICC_LOCKED and keygaurd isn't " 385 + "showing; need to show keyguard so user can enter sim pin"); 386 doKeyguardLocked(); 387 } else { 388 resetStateLocked(null); 389 } 390 } 391 break; 392 case PERM_DISABLED: 393 synchronized (this) { 394 if (!isShowing()) { 395 if (DEBUG) Log.d(TAG, "PERM_DISABLED and " 396 + "keygaurd isn't showing."); 397 doKeyguardLocked(); 398 } else { 399 if (DEBUG) Log.d(TAG, "PERM_DISABLED, resetStateLocked to" 400 + "show permanently disabled message in lockscreen."); 401 resetStateLocked(null); 402 } 403 } 404 break; 405 case READY: 406 synchronized (this) { 407 if (isShowing()) { 408 resetStateLocked(null); 409 } 410 } 411 break; 412 } 413 } 414 415 }; 416 417 ViewMediatorCallback mViewMediatorCallback = new ViewMediatorCallback() { 418 public void wakeUp() { 419 KeyguardViewMediator.this.wakeUp(); 420 } 421 422 public void userActivity() { 423 KeyguardViewMediator.this.userActivity(); 424 } 425 426 public void userActivity(long holdMs) { 427 KeyguardViewMediator.this.userActivity(holdMs); 428 } 429 430 public void keyguardDone(boolean authenticated) { 431 KeyguardViewMediator.this.keyguardDone(authenticated, true); 432 } 433 434 public void keyguardDoneDrawing() { 435 mHandler.sendEmptyMessage(KEYGUARD_DONE_DRAWING); 436 } 437 438 @Override 439 public void setNeedsInput(boolean needsInput) { 440 mKeyguardViewManager.setNeedsInput(needsInput); 441 } 442 443 @Override 444 public void onUserActivityTimeoutChanged() { 445 mKeyguardViewManager.updateUserActivityTimeout(); 446 } 447 448 @Override 449 public void keyguardDonePending() { 450 mKeyguardDonePending = true; 451 } 452 }; 453 454 public void wakeUp() { 455 mPM.wakeUp(SystemClock.uptimeMillis()); 456 } 457 458 public void userActivity() { 459 userActivity(AWAKE_INTERVAL_DEFAULT_MS); 460 } 461 462 public void userActivity(long holdMs) { 463 // We ignore the hold time. Eventually we should remove it. 464 // Instead, the keyguard window has an explicit user activity timeout set on it. 465 mPM.userActivity(SystemClock.uptimeMillis(), false); 466 } 467 468 /** 469 * Construct a KeyguardViewMediator 470 * @param context 471 * @param lockPatternUtils optional mock interface for LockPatternUtils 472 */ 473 public KeyguardViewMediator(Context context, LockPatternUtils lockPatternUtils) { 474 mContext = context; 475 mPM = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 476 mUserManager = (UserManager) mContext.getSystemService(Context.USER_SERVICE); 477 mShowKeyguardWakeLock = mPM.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "show keyguard"); 478 mShowKeyguardWakeLock.setReferenceCounted(false); 479 480 mWakeAndHandOff = mPM.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "keyguardWakeAndHandOff"); 481 mWakeAndHandOff.setReferenceCounted(false); 482 483 mContext.registerReceiver(mBroadcastReceiver, new IntentFilter(DELAYED_KEYGUARD_ACTION)); 484 485 mAlarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 486 487 mUpdateMonitor = KeyguardUpdateMonitor.getInstance(context); 488 489 mLockPatternUtils = lockPatternUtils != null 490 ? lockPatternUtils : new LockPatternUtils(mContext); 491 mLockPatternUtils.setCurrentUser(UserHandle.USER_OWNER); 492 493 WindowManager wm = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE); 494 495 mKeyguardViewManager = new KeyguardViewManager(context, wm, mViewMediatorCallback, 496 mLockPatternUtils); 497 498 mUserPresentIntent = new Intent(Intent.ACTION_USER_PRESENT); 499 mUserPresentIntent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING 500 | Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 501 502 final ContentResolver cr = mContext.getContentResolver(); 503 mShowLockIcon = (Settings.System.getInt(cr, "show_status_bar_lock", 0) == 1); 504 505 mScreenOn = mPM.isScreenOn(); 506 507 mLockSounds = new SoundPool(1, AudioManager.STREAM_SYSTEM, 0); 508 String soundPath = Settings.Global.getString(cr, Settings.Global.LOCK_SOUND); 509 if (soundPath != null) { 510 mLockSoundId = mLockSounds.load(soundPath, 1); 511 } 512 if (soundPath == null || mLockSoundId == 0) { 513 Log.w(TAG, "failed to load lock sound from " + soundPath); 514 } 515 soundPath = Settings.Global.getString(cr, Settings.Global.UNLOCK_SOUND); 516 if (soundPath != null) { 517 mUnlockSoundId = mLockSounds.load(soundPath, 1); 518 } 519 if (soundPath == null || mUnlockSoundId == 0) { 520 Log.w(TAG, "failed to load unlock sound from " + soundPath); 521 } 522 int lockSoundDefaultAttenuation = context.getResources().getInteger( 523 com.android.internal.R.integer.config_lockSoundVolumeDb); 524 mLockSoundVolume = (float)Math.pow(10, (float)lockSoundDefaultAttenuation/20); 525 } 526 527 /** 528 * Let us know that the system is ready after startup. 529 */ 530 public void onSystemReady() { 531 mSearchManager = (SearchManager) mContext.getSystemService(Context.SEARCH_SERVICE); 532 synchronized (this) { 533 if (DEBUG) Log.d(TAG, "onSystemReady"); 534 mSystemReady = true; 535 mUpdateMonitor.registerCallback(mUpdateCallback); 536 537 // Suppress biometric unlock right after boot until things have settled if it is the 538 // selected security method, otherwise unsuppress it. It must be unsuppressed if it is 539 // not the selected security method for the following reason: if the user starts 540 // without a screen lock selected, the biometric unlock would be suppressed the first 541 // time they try to use it. 542 // 543 // Note that the biometric unlock will still not show if it is not the selected method. 544 // Calling setAlternateUnlockEnabled(true) simply says don't suppress it if it is the 545 // selected method. 546 if (mLockPatternUtils.usingBiometricWeak() 547 && mLockPatternUtils.isBiometricWeakInstalled()) { 548 if (DEBUG) Log.d(TAG, "suppressing biometric unlock during boot"); 549 mUpdateMonitor.setAlternateUnlockEnabled(false); 550 } else { 551 mUpdateMonitor.setAlternateUnlockEnabled(true); 552 } 553 554 doKeyguardLocked(); 555 } 556 // Most services aren't available until the system reaches the ready state, so we 557 // send it here when the device first boots. 558 maybeSendUserPresentBroadcast(); 559 } 560 561 /** 562 * Called to let us know the screen was turned off. 563 * @param why either {@link WindowManagerPolicy#OFF_BECAUSE_OF_USER}, 564 * {@link WindowManagerPolicy#OFF_BECAUSE_OF_TIMEOUT} or 565 * {@link WindowManagerPolicy#OFF_BECAUSE_OF_PROX_SENSOR}. 566 */ 567 public void onScreenTurnedOff(int why) { 568 synchronized (this) { 569 mScreenOn = false; 570 if (DEBUG) Log.d(TAG, "onScreenTurnedOff(" + why + ")"); 571 572 mKeyguardDonePending = false; 573 574 // Lock immediately based on setting if secure (user has a pin/pattern/password). 575 // This also "locks" the device when not secure to provide easy access to the 576 // camera while preventing unwanted input. 577 final boolean lockImmediately = 578 mLockPatternUtils.getPowerButtonInstantlyLocks() || !mLockPatternUtils.isSecure(); 579 580 if (mExitSecureCallback != null) { 581 if (DEBUG) Log.d(TAG, "pending exit secure callback cancelled"); 582 mExitSecureCallback.onKeyguardExitResult(false); 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(); 597 } 598 } 599 } 600 601 private void doKeyguardLaterLocked() { 602 // if the screen turned off because of timeout or the user hit the power button 603 // and we don't need to lock immediately, set an alarm 604 // to enable it a little bit later (i.e, give the user a chance 605 // to turn the screen back on within a certain window without 606 // having to unlock the screen) 607 final ContentResolver cr = mContext.getContentResolver(); 608 609 // From DisplaySettings 610 long displayTimeout = Settings.System.getInt(cr, SCREEN_OFF_TIMEOUT, 611 KEYGUARD_DISPLAY_TIMEOUT_DELAY_DEFAULT); 612 613 // From SecuritySettings 614 final long lockAfterTimeout = Settings.Secure.getInt(cr, 615 Settings.Secure.LOCK_SCREEN_LOCK_AFTER_TIMEOUT, 616 KEYGUARD_LOCK_AFTER_DELAY_DEFAULT); 617 618 // From DevicePolicyAdmin 619 final long policyTimeout = mLockPatternUtils.getDevicePolicyManager() 620 .getMaximumTimeToLock(null, mLockPatternUtils.getCurrentUser()); 621 622 long timeout; 623 if (policyTimeout > 0) { 624 // policy in effect. Make sure we don't go beyond policy limit. 625 displayTimeout = Math.max(displayTimeout, 0); // ignore negative values 626 timeout = Math.min(policyTimeout - displayTimeout, lockAfterTimeout); 627 } else { 628 timeout = lockAfterTimeout; 629 } 630 631 if (timeout <= 0) { 632 // Lock now 633 mSuppressNextLockSound = true; 634 doKeyguardLocked(); 635 } else { 636 // Lock in the future 637 long when = SystemClock.elapsedRealtime() + timeout; 638 Intent intent = new Intent(DELAYED_KEYGUARD_ACTION); 639 intent.putExtra("seq", mDelayedShowingSequence); 640 PendingIntent sender = PendingIntent.getBroadcast(mContext, 641 0, intent, PendingIntent.FLAG_CANCEL_CURRENT); 642 mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, when, sender); 643 if (DEBUG) Log.d(TAG, "setting alarm to turn off keyguard, seq = " 644 + mDelayedShowingSequence); 645 } 646 } 647 648 private void cancelDoKeyguardLaterLocked() { 649 mDelayedShowingSequence++; 650 } 651 652 /** 653 * Let's us know the screen was turned on. 654 */ 655 public void onScreenTurnedOn(KeyguardViewManager.ShowListener showListener) { 656 synchronized (this) { 657 mScreenOn = true; 658 cancelDoKeyguardLaterLocked(); 659 if (DEBUG) Log.d(TAG, "onScreenTurnedOn, seq = " + mDelayedShowingSequence); 660 if (showListener != null) { 661 notifyScreenOnLocked(showListener); 662 } 663 } 664 maybeSendUserPresentBroadcast(); 665 } 666 667 private void maybeSendUserPresentBroadcast() { 668 if (mSystemReady && mLockPatternUtils.isLockScreenDisabled() 669 && mUserManager.getUsers(true).size() == 1) { 670 // Lock screen is disabled because the user has set the preference to "None". 671 // In this case, send out ACTION_USER_PRESENT here instead of in 672 // handleKeyguardDone() 673 sendUserPresentBroadcast(); 674 } 675 } 676 677 /** 678 * A dream started. We should lock after the usual screen-off lock timeout but only 679 * if there is a secure lock pattern. 680 */ 681 public void onDreamingStarted() { 682 synchronized (this) { 683 if (mScreenOn && mLockPatternUtils.isSecure()) { 684 doKeyguardLaterLocked(); 685 } 686 } 687 } 688 689 /** 690 * A dream stopped. 691 */ 692 public void onDreamingStopped() { 693 synchronized (this) { 694 if (mScreenOn) { 695 cancelDoKeyguardLaterLocked(); 696 } 697 } 698 } 699 700 /** 701 * Same semantics as {@link WindowManagerPolicy#enableKeyguard}; provide 702 * a way for external stuff to override normal keyguard behavior. For instance 703 * the phone app disables the keyguard when it receives incoming calls. 704 */ 705 public void setKeyguardEnabled(boolean enabled) { 706 synchronized (this) { 707 if (DEBUG) Log.d(TAG, "setKeyguardEnabled(" + enabled + ")"); 708 709 mExternallyEnabled = enabled; 710 711 if (!enabled && mShowing) { 712 if (mExitSecureCallback != null) { 713 if (DEBUG) Log.d(TAG, "in process of verifyUnlock request, ignoring"); 714 // we're in the process of handling a request to verify the user 715 // can get past the keyguard. ignore extraneous requests to disable / reenable 716 return; 717 } 718 719 // hiding keyguard that is showing, remember to reshow later 720 if (DEBUG) Log.d(TAG, "remembering to reshow, hiding keyguard, " 721 + "disabling status bar expansion"); 722 mNeedToReshowWhenReenabled = true; 723 hideLocked(); 724 } else if (enabled && mNeedToReshowWhenReenabled) { 725 // reenabled after previously hidden, reshow 726 if (DEBUG) Log.d(TAG, "previously hidden, reshowing, reenabling " 727 + "status bar expansion"); 728 mNeedToReshowWhenReenabled = false; 729 730 if (mExitSecureCallback != null) { 731 if (DEBUG) Log.d(TAG, "onKeyguardExitResult(false), resetting"); 732 mExitSecureCallback.onKeyguardExitResult(false); 733 mExitSecureCallback = null; 734 resetStateLocked(null); 735 } else { 736 showLocked(null); 737 738 // block until we know the keygaurd is done drawing (and post a message 739 // to unblock us after a timeout so we don't risk blocking too long 740 // and causing an ANR). 741 mWaitingUntilKeyguardVisible = true; 742 mHandler.sendEmptyMessageDelayed(KEYGUARD_DONE_DRAWING, KEYGUARD_DONE_DRAWING_TIMEOUT_MS); 743 if (DEBUG) Log.d(TAG, "waiting until mWaitingUntilKeyguardVisible is false"); 744 while (mWaitingUntilKeyguardVisible) { 745 try { 746 wait(); 747 } catch (InterruptedException e) { 748 Thread.currentThread().interrupt(); 749 } 750 } 751 if (DEBUG) Log.d(TAG, "done waiting for mWaitingUntilKeyguardVisible"); 752 } 753 } 754 } 755 } 756 757 /** 758 * @see android.app.KeyguardManager#exitKeyguardSecurely 759 */ 760 public void verifyUnlock(WindowManagerPolicy.OnKeyguardExitResult callback) { 761 synchronized (this) { 762 if (DEBUG) Log.d(TAG, "verifyUnlock"); 763 if (!mUpdateMonitor.isDeviceProvisioned()) { 764 // don't allow this api when the device isn't provisioned 765 if (DEBUG) Log.d(TAG, "ignoring because device isn't provisioned"); 766 callback.onKeyguardExitResult(false); 767 } else if (mExternallyEnabled) { 768 // this only applies when the user has externally disabled the 769 // keyguard. this is unexpected and means the user is not 770 // using the api properly. 771 Log.w(TAG, "verifyUnlock called when not externally disabled"); 772 callback.onKeyguardExitResult(false); 773 } else if (mExitSecureCallback != null) { 774 // already in progress with someone else 775 callback.onKeyguardExitResult(false); 776 } else { 777 mExitSecureCallback = callback; 778 verifyUnlockLocked(); 779 } 780 } 781 } 782 783 /** 784 * Is the keyguard currently showing? 785 */ 786 public boolean isShowing() { 787 return mShowing; 788 } 789 790 /** 791 * Is the keyguard currently showing and not being force hidden? 792 */ 793 public boolean isShowingAndNotHidden() { 794 return mShowing && !mHidden; 795 } 796 797 /** 798 * Notify us when the keyguard is hidden by another window 799 */ 800 public void setHidden(boolean isHidden) { 801 if (DEBUG) Log.d(TAG, "setHidden " + isHidden); 802 mUpdateMonitor.sendKeyguardVisibilityChanged(!isHidden); 803 mHandler.removeMessages(SET_HIDDEN); 804 Message msg = mHandler.obtainMessage(SET_HIDDEN, (isHidden ? 1 : 0), 0); 805 mHandler.sendMessage(msg); 806 } 807 808 /** 809 * Handles SET_HIDDEN message sent by setHidden() 810 */ 811 private void handleSetHidden(boolean isHidden) { 812 synchronized (KeyguardViewMediator.this) { 813 if (mHidden != isHidden) { 814 mHidden = isHidden; 815 updateActivityLockScreenState(); 816 adjustStatusBarLocked(); 817 } 818 } 819 } 820 821 /** 822 * Used by PhoneWindowManager to enable the keyguard due to a user activity timeout. 823 * This must be safe to call from any thread and with any window manager locks held. 824 */ 825 public void doKeyguardTimeout(Bundle options) { 826 mHandler.removeMessages(KEYGUARD_TIMEOUT); 827 Message msg = mHandler.obtainMessage(KEYGUARD_TIMEOUT, options); 828 mHandler.sendMessage(msg); 829 } 830 831 /** 832 * Given the state of the keyguard, is the input restricted? 833 * Input is restricted when the keyguard is showing, or when the keyguard 834 * was suppressed by an app that disabled the keyguard or we haven't been provisioned yet. 835 */ 836 public boolean isInputRestricted() { 837 return mShowing || mNeedToReshowWhenReenabled || !mUpdateMonitor.isDeviceProvisioned(); 838 } 839 840 private void doKeyguardLocked() { 841 doKeyguardLocked(null); 842 } 843 844 /** 845 * Enable the keyguard if the settings are appropriate. 846 */ 847 private void doKeyguardLocked(Bundle options) { 848 // if another app is disabling us, don't show 849 if (!mExternallyEnabled) { 850 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because externally disabled"); 851 852 // note: we *should* set mNeedToReshowWhenReenabled=true here, but that makes 853 // for an occasional ugly flicker in this situation: 854 // 1) receive a call with the screen on (no keyguard) or make a call 855 // 2) screen times out 856 // 3) user hits key to turn screen back on 857 // instead, we reenable the keyguard when we know the screen is off and the call 858 // ends (see the broadcast receiver below) 859 // TODO: clean this up when we have better support at the window manager level 860 // for apps that wish to be on top of the keyguard 861 return; 862 } 863 864 // if the keyguard is already showing, don't bother 865 if (mKeyguardViewManager.isShowing()) { 866 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because it is already showing"); 867 return; 868 } 869 870 // if the setup wizard hasn't run yet, don't show 871 final boolean requireSim = !SystemProperties.getBoolean("keyguard.no_require_sim", 872 false); 873 final boolean provisioned = mUpdateMonitor.isDeviceProvisioned(); 874 final IccCardConstants.State state = mUpdateMonitor.getSimState(); 875 final boolean lockedOrMissing = state.isPinLocked() 876 || ((state == IccCardConstants.State.ABSENT 877 || state == IccCardConstants.State.PERM_DISABLED) 878 && requireSim); 879 880 if (!lockedOrMissing && !provisioned) { 881 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because device isn't provisioned" 882 + " and the sim is not locked or missing"); 883 return; 884 } 885 886 if (mUserManager.getUsers(true).size() < 2 887 && mLockPatternUtils.isLockScreenDisabled() && !lockedOrMissing) { 888 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because lockscreen is off"); 889 return; 890 } 891 892 if (DEBUG) Log.d(TAG, "doKeyguard: showing the lock screen"); 893 showLocked(options); 894 } 895 896 /** 897 * Dismiss the keyguard through the security layers. 898 */ 899 public void dismiss() { 900 if (mShowing && !mHidden) { 901 mKeyguardViewManager.dismiss(); 902 } 903 } 904 905 /** 906 * Send message to keyguard telling it to reset its state. 907 * @param options options about how to show the keyguard 908 * @see #handleReset() 909 */ 910 private void resetStateLocked(Bundle options) { 911 if (DEBUG) Log.d(TAG, "resetStateLocked"); 912 Message msg = mHandler.obtainMessage(RESET, options); 913 mHandler.sendMessage(msg); 914 } 915 916 /** 917 * Send message to keyguard telling it to verify unlock 918 * @see #handleVerifyUnlock() 919 */ 920 private void verifyUnlockLocked() { 921 if (DEBUG) Log.d(TAG, "verifyUnlockLocked"); 922 mHandler.sendEmptyMessage(VERIFY_UNLOCK); 923 } 924 925 926 /** 927 * Send a message to keyguard telling it the screen just turned on. 928 * @see #onScreenTurnedOff(int) 929 * @see #handleNotifyScreenOff 930 */ 931 private void notifyScreenOffLocked() { 932 if (DEBUG) Log.d(TAG, "notifyScreenOffLocked"); 933 mHandler.sendEmptyMessage(NOTIFY_SCREEN_OFF); 934 } 935 936 /** 937 * Send a message to keyguard telling it the screen just turned on. 938 * @see #onScreenTurnedOn() 939 * @see #handleNotifyScreenOn 940 */ 941 private void notifyScreenOnLocked(KeyguardViewManager.ShowListener showListener) { 942 if (DEBUG) Log.d(TAG, "notifyScreenOnLocked"); 943 Message msg = mHandler.obtainMessage(NOTIFY_SCREEN_ON, showListener); 944 mHandler.sendMessage(msg); 945 } 946 947 /** 948 * Send message to keyguard telling it about a wake key so it can adjust 949 * its state accordingly and then poke the wake lock when it is ready. 950 * @param keyCode The wake key. 951 * @see #handleWakeWhenReady 952 * @see #onWakeKeyWhenKeyguardShowingTq(int) 953 */ 954 private void wakeWhenReady(int keyCode) { 955 if (DBG_WAKE) Log.d(TAG, "wakeWhenReady(" + keyCode + ")"); 956 957 /** 958 * acquire the handoff lock that will keep the cpu running. this will 959 * be released once the keyguard has set itself up and poked the other wakelock 960 * in {@link #handleWakeWhenReady(int)} 961 */ 962 mWakeAndHandOff.acquire(); 963 964 Message msg = mHandler.obtainMessage(WAKE_WHEN_READY, keyCode, 0); 965 mHandler.sendMessage(msg); 966 } 967 968 /** 969 * Send message to keyguard telling it to show itself 970 * @see #handleShow() 971 */ 972 private void showLocked(Bundle options) { 973 if (DEBUG) Log.d(TAG, "showLocked"); 974 // ensure we stay awake until we are finished displaying the keyguard 975 mShowKeyguardWakeLock.acquire(); 976 Message msg = mHandler.obtainMessage(SHOW, options); 977 mHandler.sendMessage(msg); 978 } 979 980 /** 981 * Send message to keyguard telling it to hide itself 982 * @see #handleHide() 983 */ 984 private void hideLocked() { 985 if (DEBUG) Log.d(TAG, "hideLocked"); 986 Message msg = mHandler.obtainMessage(HIDE); 987 mHandler.sendMessage(msg); 988 } 989 990 public boolean isSecure() { 991 return mLockPatternUtils.isSecure() 992 || KeyguardUpdateMonitor.getInstance(mContext).isSimPinSecure(); 993 } 994 995 /** 996 * Update the newUserId. Call while holding WindowManagerService lock. 997 * NOTE: Should only be called by KeyguardViewMediator in response to the user id changing. 998 * 999 * @param newUserId The id of the incoming user. 1000 */ 1001 public void setCurrentUser(int newUserId) { 1002 mLockPatternUtils.setCurrentUser(newUserId); 1003 } 1004 1005 private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { 1006 @Override 1007 public void onReceive(Context context, Intent intent) { 1008 if (DELAYED_KEYGUARD_ACTION.equals(intent.getAction())) { 1009 final int sequence = intent.getIntExtra("seq", 0); 1010 if (DEBUG) Log.d(TAG, "received DELAYED_KEYGUARD_ACTION with seq = " 1011 + sequence + ", mDelayedShowingSequence = " + mDelayedShowingSequence); 1012 synchronized (KeyguardViewMediator.this) { 1013 if (mDelayedShowingSequence == sequence) { 1014 // Don't play lockscreen SFX if the screen went off due to timeout. 1015 mSuppressNextLockSound = true; 1016 doKeyguardLocked(); 1017 } 1018 } 1019 } 1020 } 1021 }; 1022 1023 /** 1024 * When a key is received when the screen is off and the keyguard is showing, 1025 * we need to decide whether to actually turn on the screen, and if so, tell 1026 * the keyguard to prepare itself and poke the wake lock when it is ready. 1027 * 1028 * The 'Tq' suffix is per the documentation in {@link WindowManagerPolicy}. 1029 * Be sure not to take any action that takes a long time; any significant 1030 * action should be posted to a handler. 1031 * 1032 * @param keyCode The keycode of the key that woke the device 1033 */ 1034 public void onWakeKeyWhenKeyguardShowingTq(int keyCode) { 1035 if (DEBUG) Log.d(TAG, "onWakeKeyWhenKeyguardShowing(" + keyCode + ")"); 1036 1037 // give the keyguard view manager a chance to adjust the state of the 1038 // keyguard based on the key that woke the device before poking 1039 // the wake lock 1040 wakeWhenReady(keyCode); 1041 } 1042 1043 /** 1044 * When a wake motion such as an external mouse movement is received when the screen 1045 * is off and the keyguard is showing, we need to decide whether to actually turn 1046 * on the screen, and if so, tell the keyguard to prepare itself and poke the wake 1047 * lock when it is ready. 1048 * 1049 * The 'Tq' suffix is per the documentation in {@link WindowManagerPolicy}. 1050 * Be sure not to take any action that takes a long time; any significant 1051 * action should be posted to a handler. 1052 */ 1053 public void onWakeMotionWhenKeyguardShowingTq() { 1054 if (DEBUG) Log.d(TAG, "onWakeMotionWhenKeyguardShowing()"); 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(KeyEvent.KEYCODE_UNKNOWN); 1060 } 1061 1062 public void keyguardDone(boolean authenticated, boolean wakeup) { 1063 mKeyguardDonePending = false; 1064 synchronized (this) { 1065 EventLog.writeEvent(70000, 2); 1066 if (DEBUG) Log.d(TAG, "keyguardDone(" + authenticated + ")"); 1067 Message msg = mHandler.obtainMessage(KEYGUARD_DONE); 1068 msg.arg1 = wakeup ? 1 : 0; 1069 mHandler.sendMessage(msg); 1070 1071 if (authenticated) { 1072 mUpdateMonitor.clearFailedUnlockAttempts(); 1073 } 1074 1075 if (mExitSecureCallback != null) { 1076 mExitSecureCallback.onKeyguardExitResult(authenticated); 1077 mExitSecureCallback = null; 1078 1079 if (authenticated) { 1080 // after succesfully exiting securely, no need to reshow 1081 // the keyguard when they've released the lock 1082 mExternallyEnabled = true; 1083 mNeedToReshowWhenReenabled = false; 1084 } 1085 } 1086 } 1087 } 1088 1089 /** 1090 * This handler will be associated with the policy thread, which will also 1091 * be the UI thread of the keyguard. Since the apis of the policy, and therefore 1092 * this class, can be called by other threads, any action that directly 1093 * interacts with the keyguard ui should be posted to this handler, rather 1094 * than called directly. 1095 */ 1096 private Handler mHandler = new Handler(Looper.myLooper(), null, true /*async*/) { 1097 @Override 1098 public void handleMessage(Message msg) { 1099 switch (msg.what) { 1100 case SHOW: 1101 handleShow((Bundle) msg.obj); 1102 return ; 1103 case HIDE: 1104 handleHide(); 1105 return ; 1106 case RESET: 1107 handleReset((Bundle) msg.obj); 1108 return ; 1109 case VERIFY_UNLOCK: 1110 handleVerifyUnlock(); 1111 return; 1112 case NOTIFY_SCREEN_OFF: 1113 handleNotifyScreenOff(); 1114 return; 1115 case NOTIFY_SCREEN_ON: 1116 handleNotifyScreenOn((KeyguardViewManager.ShowListener)msg.obj); 1117 return; 1118 case WAKE_WHEN_READY: 1119 handleWakeWhenReady(msg.arg1); 1120 return; 1121 case KEYGUARD_DONE: 1122 handleKeyguardDone(msg.arg1 != 0); 1123 return; 1124 case KEYGUARD_DONE_DRAWING: 1125 handleKeyguardDoneDrawing(); 1126 return; 1127 case KEYGUARD_DONE_AUTHENTICATING: 1128 keyguardDone(true, true); 1129 return; 1130 case SET_HIDDEN: 1131 handleSetHidden(msg.arg1 != 0); 1132 break; 1133 case KEYGUARD_TIMEOUT: 1134 synchronized (KeyguardViewMediator.this) { 1135 doKeyguardLocked((Bundle) msg.obj); 1136 } 1137 break; 1138 case SHOW_ASSISTANT: 1139 handleShowAssistant(); 1140 break; 1141 } 1142 } 1143 }; 1144 1145 /** 1146 * @see #keyguardDone 1147 * @see #KEYGUARD_DONE 1148 */ 1149 private void handleKeyguardDone(boolean wakeup) { 1150 if (DEBUG) Log.d(TAG, "handleKeyguardDone"); 1151 handleHide(); 1152 if (wakeup) { 1153 wakeUp(); 1154 } 1155 1156 sendUserPresentBroadcast(); 1157 } 1158 1159 private void sendUserPresentBroadcast() { 1160 if (!(mContext instanceof Activity)) { 1161 final UserHandle currentUser = new UserHandle(mLockPatternUtils.getCurrentUser()); 1162 mContext.sendBroadcastAsUser(mUserPresentIntent, currentUser); 1163 } 1164 } 1165 1166 /** 1167 * @see #keyguardDoneDrawing 1168 * @see #KEYGUARD_DONE_DRAWING 1169 */ 1170 private void handleKeyguardDoneDrawing() { 1171 synchronized(this) { 1172 if (false) Log.d(TAG, "handleKeyguardDoneDrawing"); 1173 if (mWaitingUntilKeyguardVisible) { 1174 if (DEBUG) Log.d(TAG, "handleKeyguardDoneDrawing: notifying mWaitingUntilKeyguardVisible"); 1175 mWaitingUntilKeyguardVisible = false; 1176 notifyAll(); 1177 1178 // there will usually be two of these sent, one as a timeout, and one 1179 // as a result of the callback, so remove any remaining messages from 1180 // the queue 1181 mHandler.removeMessages(KEYGUARD_DONE_DRAWING); 1182 } 1183 } 1184 } 1185 1186 private void playSounds(boolean locked) { 1187 // User feedback for keyguard. 1188 1189 if (mSuppressNextLockSound) { 1190 mSuppressNextLockSound = false; 1191 return; 1192 } 1193 1194 final ContentResolver cr = mContext.getContentResolver(); 1195 if (Settings.System.getInt(cr, Settings.System.LOCKSCREEN_SOUNDS_ENABLED, 1) == 1) { 1196 final int whichSound = locked 1197 ? mLockSoundId 1198 : mUnlockSoundId; 1199 mLockSounds.stop(mLockSoundStreamId); 1200 // Init mAudioManager 1201 if (mAudioManager == null) { 1202 mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 1203 if (mAudioManager == null) return; 1204 mMasterStreamType = mAudioManager.getMasterStreamType(); 1205 } 1206 // If the stream is muted, don't play the sound 1207 if (mAudioManager.isStreamMute(mMasterStreamType)) return; 1208 1209 mLockSoundStreamId = mLockSounds.play(whichSound, 1210 mLockSoundVolume, mLockSoundVolume, 1/*priortiy*/, 0/*loop*/, 1.0f/*rate*/); 1211 } 1212 } 1213 1214 private void updateActivityLockScreenState() { 1215 try { 1216 ActivityManagerNative.getDefault().setLockScreenShown( 1217 mShowing && !mHidden); 1218 } catch (RemoteException e) { 1219 } 1220 } 1221 1222 /** 1223 * Handle message sent by {@link #showLocked}. 1224 * @see #SHOW 1225 */ 1226 private void handleShow(Bundle options) { 1227 synchronized (KeyguardViewMediator.this) { 1228 if (DEBUG) Log.d(TAG, "handleShow"); 1229 if (!mSystemReady) return; 1230 1231 mKeyguardViewManager.show(options); 1232 mShowing = true; 1233 mKeyguardDonePending = false; 1234 updateActivityLockScreenState(); 1235 adjustStatusBarLocked(); 1236 userActivity(); 1237 try { 1238 ActivityManagerNative.getDefault().closeSystemDialogs("lock"); 1239 } catch (RemoteException e) { 1240 } 1241 1242 // Do this at the end to not slow down display of the keyguard. 1243 playSounds(true); 1244 1245 mShowKeyguardWakeLock.release(); 1246 } 1247 } 1248 1249 /** 1250 * Handle message sent by {@link #hideLocked()} 1251 * @see #HIDE 1252 */ 1253 private void handleHide() { 1254 synchronized (KeyguardViewMediator.this) { 1255 if (DEBUG) Log.d(TAG, "handleHide"); 1256 if (mWakeAndHandOff.isHeld()) { 1257 Log.w(TAG, "attempt to hide the keyguard while waking, ignored"); 1258 return; 1259 } 1260 1261 // only play "unlock" noises if not on a call (since the incall UI 1262 // disables the keyguard) 1263 if (TelephonyManager.EXTRA_STATE_IDLE.equals(mPhoneState)) { 1264 playSounds(false); 1265 } 1266 1267 mKeyguardViewManager.hide(); 1268 mShowing = false; 1269 mKeyguardDonePending = false; 1270 updateActivityLockScreenState(); 1271 adjustStatusBarLocked(); 1272 } 1273 } 1274 1275 private void adjustStatusBarLocked() { 1276 if (mStatusBarManager == null) { 1277 mStatusBarManager = (StatusBarManager) 1278 mContext.getSystemService(Context.STATUS_BAR_SERVICE); 1279 } 1280 if (mStatusBarManager == null) { 1281 Log.w(TAG, "Could not get status bar manager"); 1282 } else { 1283 if (mShowLockIcon) { 1284 // Give feedback to user when secure keyguard is active and engaged 1285 if (mShowing && isSecure()) { 1286 if (!mShowingLockIcon) { 1287 String contentDescription = mContext.getString( 1288 com.android.internal.R.string.status_bar_device_locked); 1289 mStatusBarManager.setIcon("secure", 1290 com.android.internal.R.drawable.stat_sys_secure, 0, 1291 contentDescription); 1292 mShowingLockIcon = true; 1293 } 1294 } else { 1295 if (mShowingLockIcon) { 1296 mStatusBarManager.removeIcon("secure"); 1297 mShowingLockIcon = false; 1298 } 1299 } 1300 } 1301 1302 // Disable aspects of the system/status/navigation bars that must not be re-enabled by 1303 // windows that appear on top, ever 1304 int flags = StatusBarManager.DISABLE_NONE; 1305 if (mShowing) { 1306 // Permanently disable components not available when keyguard is enabled 1307 // (like recents). Temporary enable/disable (e.g. the "back" button) are 1308 // done in KeyguardHostView. 1309 flags |= StatusBarManager.DISABLE_RECENT; 1310 if (isSecure() || !ENABLE_INSECURE_STATUS_BAR_EXPAND) { 1311 // showing secure lockscreen; disable expanding. 1312 flags |= StatusBarManager.DISABLE_EXPAND; 1313 } 1314 if (isSecure()) { 1315 // showing secure lockscreen; disable ticker. 1316 flags |= StatusBarManager.DISABLE_NOTIFICATION_TICKER; 1317 } 1318 if (!isAssistantAvailable()) { 1319 flags |= StatusBarManager.DISABLE_SEARCH; 1320 } 1321 } 1322 1323 if (DEBUG) { 1324 Log.d(TAG, "adjustStatusBarLocked: mShowing=" + mShowing + " mHidden=" + mHidden 1325 + " isSecure=" + isSecure() + " --> flags=0x" + Integer.toHexString(flags)); 1326 } 1327 1328 if (!(mContext instanceof Activity)) { 1329 mStatusBarManager.disable(flags); 1330 } 1331 } 1332 } 1333 1334 /** 1335 * Handle message sent by {@link #wakeWhenReady(int)} 1336 * @param keyCode The key that woke the device. 1337 * @see #WAKE_WHEN_READY 1338 */ 1339 private void handleWakeWhenReady(int keyCode) { 1340 synchronized (KeyguardViewMediator.this) { 1341 if (DBG_WAKE) Log.d(TAG, "handleWakeWhenReady(" + keyCode + ")"); 1342 1343 // this should result in a call to 'poke wakelock' which will set a timeout 1344 // on releasing the wakelock 1345 if (!mKeyguardViewManager.wakeWhenReadyTq(keyCode)) { 1346 // poke wakelock ourselves if keyguard is no longer active 1347 Log.w(TAG, "mKeyguardViewManager.wakeWhenReadyTq did not poke wake lock, so poke it ourselves"); 1348 userActivity(); 1349 } 1350 1351 /** 1352 * Now that the keyguard is ready and has poked the wake lock, we can 1353 * release the handoff wakelock 1354 */ 1355 mWakeAndHandOff.release(); 1356 } 1357 } 1358 1359 /** 1360 * Handle message sent by {@link #resetStateLocked(Bundle)} 1361 * @see #RESET 1362 */ 1363 private void handleReset(Bundle options) { 1364 synchronized (KeyguardViewMediator.this) { 1365 if (DEBUG) Log.d(TAG, "handleReset"); 1366 mKeyguardViewManager.reset(options); 1367 } 1368 } 1369 1370 /** 1371 * Handle message sent by {@link #verifyUnlock} 1372 * @see #VERIFY_UNLOCK 1373 */ 1374 private void handleVerifyUnlock() { 1375 synchronized (KeyguardViewMediator.this) { 1376 if (DEBUG) Log.d(TAG, "handleVerifyUnlock"); 1377 mKeyguardViewManager.verifyUnlock(); 1378 mShowing = true; 1379 updateActivityLockScreenState(); 1380 } 1381 } 1382 1383 /** 1384 * Handle message sent by {@link #notifyScreenOffLocked()} 1385 * @see #NOTIFY_SCREEN_OFF 1386 */ 1387 private void handleNotifyScreenOff() { 1388 synchronized (KeyguardViewMediator.this) { 1389 if (DEBUG) Log.d(TAG, "handleNotifyScreenOff"); 1390 mKeyguardViewManager.onScreenTurnedOff(); 1391 } 1392 } 1393 1394 /** 1395 * Handle message sent by {@link #notifyScreenOnLocked()} 1396 * @see #NOTIFY_SCREEN_ON 1397 */ 1398 private void handleNotifyScreenOn(KeyguardViewManager.ShowListener showListener) { 1399 synchronized (KeyguardViewMediator.this) { 1400 if (DEBUG) Log.d(TAG, "handleNotifyScreenOn"); 1401 mKeyguardViewManager.onScreenTurnedOn(showListener); 1402 } 1403 } 1404 1405 public boolean isDismissable() { 1406 return mKeyguardDonePending || !isSecure(); 1407 } 1408 1409 public void showAssistant() { 1410 Message msg = mHandler.obtainMessage(SHOW_ASSISTANT); 1411 mHandler.sendMessage(msg); 1412 } 1413 1414 public void handleShowAssistant() { 1415 mKeyguardViewManager.showAssistant(); 1416 } 1417 1418 private boolean isAssistantAvailable() { 1419 return mSearchManager != null 1420 && mSearchManager.getAssistIntent(mContext, UserHandle.USER_CURRENT) != null; 1421 } 1422} 1423