KeyguardViewMediator.java revision 17f509aefe98f448f8f0692321415eb0ac0abc2e
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.keyguard; 18 19import com.android.internal.policy.IKeyguardExitCallback; 20import com.android.internal.policy.IKeyguardShowCallback; 21import static android.provider.Settings.System.SCREEN_OFF_TIMEOUT; 22 23import android.app.Activity; 24import android.app.ActivityManagerNative; 25import android.app.AlarmManager; 26import android.app.PendingIntent; 27import android.app.SearchManager; 28import android.app.StatusBarManager; 29import android.content.BroadcastReceiver; 30import android.content.ContentResolver; 31import android.content.Context; 32import android.content.Intent; 33import android.content.IntentFilter; 34import android.media.AudioManager; 35import android.media.SoundPool; 36import android.os.Bundle; 37import android.os.Handler; 38import android.os.Looper; 39import android.os.Message; 40import android.os.PowerManager; 41import android.os.RemoteException; 42import android.os.SystemClock; 43import android.os.SystemProperties; 44import android.os.UserHandle; 45import android.os.UserManager; 46import android.provider.Settings; 47import android.telephony.TelephonyManager; 48import android.util.EventLog; 49import android.util.Log; 50import android.util.Slog; 51import android.view.KeyEvent; 52import android.view.WindowManager; 53import android.view.WindowManagerPolicy; 54 55import com.android.internal.telephony.IccCardConstants; 56import com.android.internal.widget.LockPatternUtils; 57 58 59/** 60 * Mediates requests related to the keyguard. This includes queries about the 61 * state of the keyguard, power management events that effect whether the keyguard 62 * should be shown or reset, callbacks to the phone window manager to notify 63 * it of when the keyguard is showing, and events from the keyguard view itself 64 * stating that the keyguard was succesfully unlocked. 65 * 66 * Note that the keyguard view is shown when the screen is off (as appropriate) 67 * so that once the screen comes on, it will be ready immediately. 68 * 69 * Example queries about the keyguard: 70 * - is {movement, key} one that should wake the keygaurd? 71 * - is the keyguard showing? 72 * - are input events restricted due to the state of the keyguard? 73 * 74 * Callbacks to the phone window manager: 75 * - the keyguard is showing 76 * 77 * Example external events that translate to keyguard view changes: 78 * - screen turned off -> reset the keyguard, and show it so it will be ready 79 * next time the screen turns on 80 * - keyboard is slid open -> if the keyguard is not secure, hide it 81 * 82 * Events from the keyguard view: 83 * - user succesfully unlocked keyguard -> hide keyguard view, and no longer 84 * restrict input events. 85 * 86 * Note: in addition to normal power managment events that effect the state of 87 * whether the keyguard should be showing, external apps and services may request 88 * that the keyguard be disabled via {@link #setKeyguardEnabled(boolean)}. When 89 * false, this will override all other conditions for turning on the keyguard. 90 * 91 * Threading and synchronization: 92 * This class is created by the initialization routine of the {@link WindowManagerPolicy}, 93 * and runs on its thread. The keyguard UI is created from that thread in the 94 * constructor of this class. The apis may be called from other threads, including the 95 * {@link com.android.server.input.InputManagerService}'s and {@link android.view.WindowManager}'s. 96 * Therefore, methods on this class are synchronized, and any action that is pointed 97 * directly to the keyguard UI is posted to a {@link Handler} to ensure it is taken on the UI 98 * thread of the keyguard. 99 */ 100public class KeyguardViewMediator { 101 private static final int KEYGUARD_DISPLAY_TIMEOUT_DELAY_DEFAULT = 30000; 102 final static boolean DEBUG = false; 103 private final static boolean DBG_WAKE = false; 104 105 private final static String TAG = "KeyguardViewMediator"; 106 107 private static final String DELAYED_KEYGUARD_ACTION = 108 "com.android.internal.policy.impl.PhoneWindowManager.DELAYED_KEYGUARD"; 109 110 // used for handler messages 111 private static final int SHOW = 2; 112 private static final int HIDE = 3; 113 private static final int RESET = 4; 114 private static final int VERIFY_UNLOCK = 5; 115 private static final int NOTIFY_SCREEN_OFF = 6; 116 private static final int NOTIFY_SCREEN_ON = 7; 117 private static final int WAKE_WHEN_READY = 8; 118 private static final int KEYGUARD_DONE = 9; 119 private static final int KEYGUARD_DONE_DRAWING = 10; 120 private static final int KEYGUARD_DONE_AUTHENTICATING = 11; 121 private static final int SET_HIDDEN = 12; 122 private static final int KEYGUARD_TIMEOUT = 13; 123 private static final int SHOW_ASSISTANT = 14; 124 125 /** 126 * The default amount of time we stay awake (used for all key input) 127 */ 128 protected static final int AWAKE_INTERVAL_DEFAULT_MS = 10000; 129 130 /** 131 * How long to wait after the screen turns off due to timeout before 132 * turning on the keyguard (i.e, the user has this much time to turn 133 * the screen back on without having to face the keyguard). 134 */ 135 private static final int KEYGUARD_LOCK_AFTER_DELAY_DEFAULT = 5000; 136 137 /** 138 * How long we'll wait for the {@link ViewMediatorCallback#keyguardDoneDrawing()} 139 * callback before unblocking a call to {@link #setKeyguardEnabled(boolean)} 140 * that is reenabling the keyguard. 141 */ 142 private static final int KEYGUARD_DONE_DRAWING_TIMEOUT_MS = 2000; 143 144 /** 145 * Allow the user to expand the status bar when the keyguard is engaged 146 * (without a pattern or password). 147 */ 148 private static final boolean ENABLE_INSECURE_STATUS_BAR_EXPAND = true; 149 150 /** The stream type that the lock sounds are tied to. */ 151 private int mMasterStreamType; 152 153 private Context mContext; 154 private AlarmManager mAlarmManager; 155 private AudioManager mAudioManager; 156 private StatusBarManager mStatusBarManager; 157 private boolean mShowLockIcon; 158 private boolean mShowingLockIcon; 159 private boolean mSwitchingUser; 160 161 private boolean mSystemReady; 162 163 // Whether the next call to playSounds() should be skipped. Defaults to 164 // true because the first lock (on boot) should be silent. 165 private boolean mSuppressNextLockSound = true; 166 167 168 /** High level access to the power manager for WakeLocks */ 169 private PowerManager mPM; 170 171 /** UserManager for querying number of users */ 172 private UserManager mUserManager; 173 174 /** SearchManager for determining whether or not search assistant is available */ 175 private SearchManager mSearchManager; 176 177 /** 178 * Used to keep the device awake while to ensure the keyguard finishes opening before 179 * we sleep. 180 */ 181 private PowerManager.WakeLock mShowKeyguardWakeLock; 182 183 /** 184 * Does not turn on screen, held while a call to {@link KeyguardViewManager#wakeWhenReadyTq(int)} 185 * is called to make sure the device doesn't sleep before it has a chance to poke 186 * the wake lock. 187 * @see #wakeWhenReady(int) 188 */ 189 private PowerManager.WakeLock mWakeAndHandOff; 190 191 private KeyguardViewManager mKeyguardViewManager; 192 193 // these are protected by synchronized (this) 194 195 /** 196 * External apps (like the phone app) can tell us to disable the keygaurd. 197 */ 198 private boolean mExternallyEnabled = true; 199 200 /** 201 * Remember if an external call to {@link #setKeyguardEnabled} with value 202 * false caused us to hide the keyguard, so that we need to reshow it once 203 * the keygaurd is reenabled with another call with value true. 204 */ 205 private boolean mNeedToReshowWhenReenabled = false; 206 207 // cached value of whether we are showing (need to know this to quickly 208 // answer whether the input should be restricted) 209 private boolean mShowing = false; 210 211 // true if the keyguard is hidden by another window 212 private boolean mHidden = false; 213 214 /** 215 * Helps remember whether the screen has turned on since the last time 216 * it turned off due to timeout. see {@link #onScreenTurnedOff(int)} 217 */ 218 private int mDelayedShowingSequence; 219 220 /** 221 * If the user has disabled the keyguard, then requests to exit, this is 222 * how we'll ultimately let them know whether it was successful. We use this 223 * var being non-null as an indicator that there is an in progress request. 224 */ 225 private IKeyguardExitCallback mExitSecureCallback; 226 227 // the properties of the keyguard 228 229 private KeyguardUpdateMonitor mUpdateMonitor; 230 231 private boolean mScreenOn; 232 233 // last known state of the cellular connection 234 private String mPhoneState = TelephonyManager.EXTRA_STATE_IDLE; 235 236 /** 237 * we send this intent when the keyguard is dismissed. 238 */ 239 private static final Intent USER_PRESENT_INTENT = new Intent(Intent.ACTION_USER_PRESENT) 240 .addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING 241 | Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 242 243 /** 244 * {@link #setKeyguardEnabled} waits on this condition when it reenables 245 * the keyguard. 246 */ 247 private boolean mWaitingUntilKeyguardVisible = false; 248 private LockPatternUtils mLockPatternUtils; 249 private boolean mKeyguardDonePending = false; 250 251 private SoundPool mLockSounds; 252 private int mLockSoundId; 253 private int mUnlockSoundId; 254 private int mLockSoundStreamId; 255 256 /** 257 * The volume applied to the lock/unlock sounds. 258 */ 259 private final float mLockSoundVolume; 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 // Disable face unlock when the user switches. 328 KeyguardUpdateMonitor.getInstance(mContext).setAlternateUnlockEnabled(false); 329 } 330 } 331 332 @Override 333 public void onUserSwitchComplete(int userId) { 334 mSwitchingUser = false; 335 } 336 337 @Override 338 public void onUserRemoved(int userId) { 339 mLockPatternUtils.removeUser(userId); 340 } 341 342 @Override 343 void onPhoneStateChanged(int phoneState) { 344 synchronized (KeyguardViewMediator.this) { 345 if (TelephonyManager.CALL_STATE_IDLE == phoneState // call ending 346 && !mScreenOn // screen off 347 && mExternallyEnabled) { // not disabled by any app 348 349 // note: this is a way to gracefully reenable the keyguard when the call 350 // ends and the screen is off without always reenabling the keyguard 351 // each time the screen turns off while in call (and having an occasional ugly 352 // flicker while turning back on the screen and disabling the keyguard again). 353 if (DEBUG) Log.d(TAG, "screen is off and call ended, let's make sure the " 354 + "keyguard is showing"); 355 doKeyguardLocked(null); 356 } 357 } 358 }; 359 360 @Override 361 public void onClockVisibilityChanged() { 362 adjustStatusBarLocked(); 363 } 364 365 @Override 366 public void onDeviceProvisioned() { 367 sendUserPresentBroadcast(); 368 } 369 370 @Override 371 public void onSimStateChanged(IccCardConstants.State simState) { 372 if (DEBUG) Log.d(TAG, "onSimStateChanged: " + simState); 373 374 switch (simState) { 375 case NOT_READY: 376 case ABSENT: 377 // only force lock screen in case of missing sim if user hasn't 378 // gone through setup wizard 379 synchronized (this) { 380 if (!mUpdateMonitor.isDeviceProvisioned()) { 381 if (!isShowing()) { 382 if (DEBUG) Log.d(TAG, "ICC_ABSENT isn't showing," 383 + " we need to show the keyguard since the " 384 + "device isn't provisioned yet."); 385 doKeyguardLocked(null); 386 } else { 387 resetStateLocked(null); 388 } 389 } 390 } 391 break; 392 case PIN_REQUIRED: 393 case PUK_REQUIRED: 394 synchronized (this) { 395 if (!isShowing()) { 396 if (DEBUG) Log.d(TAG, "INTENT_VALUE_ICC_LOCKED and keygaurd isn't " 397 + "showing; need to show keyguard so user can enter sim pin"); 398 doKeyguardLocked(null); 399 } else { 400 resetStateLocked(null); 401 } 402 } 403 break; 404 case PERM_DISABLED: 405 synchronized (this) { 406 if (!isShowing()) { 407 if (DEBUG) Log.d(TAG, "PERM_DISABLED and " 408 + "keygaurd isn't showing."); 409 doKeyguardLocked(null); 410 } else { 411 if (DEBUG) Log.d(TAG, "PERM_DISABLED, resetStateLocked to" 412 + "show permanently disabled message in lockscreen."); 413 resetStateLocked(null); 414 } 415 } 416 break; 417 case READY: 418 synchronized (this) { 419 if (isShowing()) { 420 resetStateLocked(null); 421 } 422 } 423 break; 424 } 425 } 426 427 }; 428 429 ViewMediatorCallback mViewMediatorCallback = new ViewMediatorCallback() { 430 public void wakeUp() { 431 KeyguardViewMediator.this.wakeUp(); 432 } 433 434 public void userActivity() { 435 KeyguardViewMediator.this.userActivity(); 436 } 437 438 public void userActivity(long holdMs) { 439 KeyguardViewMediator.this.userActivity(holdMs); 440 } 441 442 public void keyguardDone(boolean authenticated) { 443 KeyguardViewMediator.this.keyguardDone(authenticated, true); 444 } 445 446 public void keyguardDoneDrawing() { 447 mHandler.sendEmptyMessage(KEYGUARD_DONE_DRAWING); 448 } 449 450 @Override 451 public void setNeedsInput(boolean needsInput) { 452 mKeyguardViewManager.setNeedsInput(needsInput); 453 } 454 455 @Override 456 public void onUserActivityTimeoutChanged() { 457 mKeyguardViewManager.updateUserActivityTimeout(); 458 } 459 460 @Override 461 public void keyguardDonePending() { 462 mKeyguardDonePending = true; 463 } 464 }; 465 466 public void wakeUp() { 467 mPM.wakeUp(SystemClock.uptimeMillis()); 468 } 469 470 private void userActivity() { 471 userActivity(AWAKE_INTERVAL_DEFAULT_MS); 472 } 473 474 public void userActivity(long holdMs) { 475 // We ignore the hold time. Eventually we should remove it. 476 // Instead, the keyguard window has an explicit user activity timeout set on it. 477 mPM.userActivity(SystemClock.uptimeMillis(), false); 478 } 479 480 /** 481 * Construct a KeyguardViewMediator 482 * @param context 483 * @param lockPatternUtils optional mock interface for LockPatternUtils 484 */ 485 public KeyguardViewMediator(Context context, LockPatternUtils lockPatternUtils) { 486 mContext = context; 487 mPM = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 488 mUserManager = (UserManager) mContext.getSystemService(Context.USER_SERVICE); 489 mShowKeyguardWakeLock = mPM.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "show keyguard"); 490 mShowKeyguardWakeLock.setReferenceCounted(false); 491 492 mWakeAndHandOff = mPM.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "keyguardWakeAndHandOff"); 493 mWakeAndHandOff.setReferenceCounted(false); 494 495 mContext.registerReceiver(mBroadcastReceiver, new IntentFilter(DELAYED_KEYGUARD_ACTION)); 496 497 mAlarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 498 499 mUpdateMonitor = KeyguardUpdateMonitor.getInstance(context); 500 501 mLockPatternUtils = lockPatternUtils != null 502 ? lockPatternUtils : new LockPatternUtils(mContext); 503 mLockPatternUtils.setCurrentUser(UserHandle.USER_OWNER); 504 505 WindowManager wm = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE); 506 507 mKeyguardViewManager = new KeyguardViewManager(context, wm, mViewMediatorCallback, 508 mLockPatternUtils); 509 510 final ContentResolver cr = mContext.getContentResolver(); 511 mShowLockIcon = (Settings.System.getInt(cr, "show_status_bar_lock", 0) == 1); 512 513 mScreenOn = mPM.isScreenOn(); 514 515 mLockSounds = new SoundPool(1, AudioManager.STREAM_SYSTEM, 0); 516 String soundPath = Settings.Global.getString(cr, Settings.Global.LOCK_SOUND); 517 if (soundPath != null) { 518 mLockSoundId = mLockSounds.load(soundPath, 1); 519 } 520 if (soundPath == null || mLockSoundId == 0) { 521 Log.w(TAG, "failed to load lock sound from " + soundPath); 522 } 523 soundPath = Settings.Global.getString(cr, Settings.Global.UNLOCK_SOUND); 524 if (soundPath != null) { 525 mUnlockSoundId = mLockSounds.load(soundPath, 1); 526 } 527 if (soundPath == null || mUnlockSoundId == 0) { 528 Log.w(TAG, "failed to load unlock sound from " + soundPath); 529 } 530 int lockSoundDefaultAttenuation = context.getResources().getInteger( 531 com.android.internal.R.integer.config_lockSoundVolumeDb); 532 mLockSoundVolume = (float)Math.pow(10, (float)lockSoundDefaultAttenuation/20); 533 } 534 535 /** 536 * Let us know that the system is ready after startup. 537 */ 538 public void onSystemReady() { 539 mSearchManager = (SearchManager) mContext.getSystemService(Context.SEARCH_SERVICE); 540 synchronized (this) { 541 if (DEBUG) Log.d(TAG, "onSystemReady"); 542 mSystemReady = true; 543 mUpdateMonitor.registerCallback(mUpdateCallback); 544 545 // Suppress biometric unlock right after boot until things have settled if it is the 546 // selected security method, otherwise unsuppress it. It must be unsuppressed if it is 547 // not the selected security method for the following reason: if the user starts 548 // without a screen lock selected, the biometric unlock would be suppressed the first 549 // time they try to use it. 550 // 551 // Note that the biometric unlock will still not show if it is not the selected method. 552 // Calling setAlternateUnlockEnabled(true) simply says don't suppress it if it is the 553 // selected method. 554 if (mLockPatternUtils.usingBiometricWeak() 555 && mLockPatternUtils.isBiometricWeakInstalled()) { 556 if (DEBUG) Log.d(TAG, "suppressing biometric unlock during boot"); 557 mUpdateMonitor.setAlternateUnlockEnabled(false); 558 } else { 559 mUpdateMonitor.setAlternateUnlockEnabled(true); 560 } 561 562 doKeyguardLocked(null); 563 } 564 // Most services aren't available until the system reaches the ready state, so we 565 // send it here when the device first boots. 566 maybeSendUserPresentBroadcast(); 567 } 568 569 /** 570 * Called to let us know the screen was turned off. 571 * @param why either {@link WindowManagerPolicy#OFF_BECAUSE_OF_USER}, 572 * {@link WindowManagerPolicy#OFF_BECAUSE_OF_TIMEOUT} or 573 * {@link WindowManagerPolicy#OFF_BECAUSE_OF_PROX_SENSOR}. 574 */ 575 public void onScreenTurnedOff(int why) { 576 synchronized (this) { 577 mScreenOn = false; 578 if (DEBUG) Log.d(TAG, "onScreenTurnedOff(" + why + ")"); 579 580 mKeyguardDonePending = false; 581 582 // Lock immediately based on setting if secure (user has a pin/pattern/password). 583 // This also "locks" the device when not secure to provide easy access to the 584 // camera while preventing unwanted input. 585 final boolean lockImmediately = 586 mLockPatternUtils.getPowerButtonInstantlyLocks() || !mLockPatternUtils.isSecure(); 587 588 if (mExitSecureCallback != null) { 589 if (DEBUG) Log.d(TAG, "pending exit secure callback cancelled"); 590 try { 591 mExitSecureCallback.onKeyguardExitResult(false); 592 } catch (RemoteException e) { 593 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 594 } 595 mExitSecureCallback = null; 596 if (!mExternallyEnabled) { 597 hideLocked(); 598 } 599 } else if (mShowing) { 600 notifyScreenOffLocked(); 601 resetStateLocked(null); 602 } else if (why == WindowManagerPolicy.OFF_BECAUSE_OF_TIMEOUT 603 || (why == WindowManagerPolicy.OFF_BECAUSE_OF_USER && !lockImmediately)) { 604 doKeyguardLaterLocked(); 605 } else if (why == WindowManagerPolicy.OFF_BECAUSE_OF_PROX_SENSOR) { 606 // Do not enable the keyguard if the prox sensor forced the screen off. 607 } else { 608 doKeyguardLocked(null); 609 } 610 } 611 } 612 613 private void doKeyguardLaterLocked() { 614 // if the screen turned off because of timeout or the user hit the power button 615 // and we don't need to lock immediately, set an alarm 616 // to enable it a little bit later (i.e, give the user a chance 617 // to turn the screen back on within a certain window without 618 // having to unlock the screen) 619 final ContentResolver cr = mContext.getContentResolver(); 620 621 // From DisplaySettings 622 long displayTimeout = Settings.System.getInt(cr, SCREEN_OFF_TIMEOUT, 623 KEYGUARD_DISPLAY_TIMEOUT_DELAY_DEFAULT); 624 625 // From SecuritySettings 626 final long lockAfterTimeout = Settings.Secure.getInt(cr, 627 Settings.Secure.LOCK_SCREEN_LOCK_AFTER_TIMEOUT, 628 KEYGUARD_LOCK_AFTER_DELAY_DEFAULT); 629 630 // From DevicePolicyAdmin 631 final long policyTimeout = mLockPatternUtils.getDevicePolicyManager() 632 .getMaximumTimeToLock(null, mLockPatternUtils.getCurrentUser()); 633 634 long timeout; 635 if (policyTimeout > 0) { 636 // policy in effect. Make sure we don't go beyond policy limit. 637 displayTimeout = Math.max(displayTimeout, 0); // ignore negative values 638 timeout = Math.min(policyTimeout - displayTimeout, lockAfterTimeout); 639 } else { 640 timeout = lockAfterTimeout; 641 } 642 643 if (timeout <= 0) { 644 // Lock now 645 mSuppressNextLockSound = true; 646 doKeyguardLocked(null); 647 } else { 648 // Lock in the future 649 long when = SystemClock.elapsedRealtime() + timeout; 650 Intent intent = new Intent(DELAYED_KEYGUARD_ACTION); 651 intent.putExtra("seq", mDelayedShowingSequence); 652 PendingIntent sender = PendingIntent.getBroadcast(mContext, 653 0, intent, PendingIntent.FLAG_CANCEL_CURRENT); 654 mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, when, sender); 655 if (DEBUG) Log.d(TAG, "setting alarm to turn off keyguard, seq = " 656 + mDelayedShowingSequence); 657 } 658 } 659 660 private void cancelDoKeyguardLaterLocked() { 661 mDelayedShowingSequence++; 662 } 663 664 /** 665 * Let's us know the screen was turned on. 666 */ 667 public void onScreenTurnedOn(IKeyguardShowCallback callback) { 668 synchronized (this) { 669 mScreenOn = true; 670 cancelDoKeyguardLaterLocked(); 671 if (DEBUG) Log.d(TAG, "onScreenTurnedOn, seq = " + mDelayedShowingSequence); 672 if (callback != null) { 673 notifyScreenOnLocked(callback); 674 } 675 } 676 maybeSendUserPresentBroadcast(); 677 } 678 679 private void maybeSendUserPresentBroadcast() { 680 if (mSystemReady && mLockPatternUtils.isLockScreenDisabled() 681 && mUserManager.getUsers(true).size() == 1) { 682 // Lock screen is disabled because the user has set the preference to "None". 683 // In this case, send out ACTION_USER_PRESENT here instead of in 684 // handleKeyguardDone() 685 sendUserPresentBroadcast(); 686 } 687 } 688 689 /** 690 * A dream started. We should lock after the usual screen-off lock timeout but only 691 * if there is a secure lock pattern. 692 */ 693 public void onDreamingStarted() { 694 synchronized (this) { 695 if (mScreenOn && mLockPatternUtils.isSecure()) { 696 doKeyguardLaterLocked(); 697 } 698 } 699 } 700 701 /** 702 * A dream stopped. 703 */ 704 public void onDreamingStopped() { 705 synchronized (this) { 706 if (mScreenOn) { 707 cancelDoKeyguardLaterLocked(); 708 } 709 } 710 } 711 712 /** 713 * Same semantics as {@link WindowManagerPolicy#enableKeyguard}; provide 714 * a way for external stuff to override normal keyguard behavior. For instance 715 * the phone app disables the keyguard when it receives incoming calls. 716 */ 717 public void setKeyguardEnabled(boolean enabled) { 718 synchronized (this) { 719 if (DEBUG) Log.d(TAG, "setKeyguardEnabled(" + enabled + ")"); 720 721 mExternallyEnabled = enabled; 722 723 if (!enabled && mShowing) { 724 if (mExitSecureCallback != null) { 725 if (DEBUG) Log.d(TAG, "in process of verifyUnlock request, ignoring"); 726 // we're in the process of handling a request to verify the user 727 // can get past the keyguard. ignore extraneous requests to disable / reenable 728 return; 729 } 730 731 // hiding keyguard that is showing, remember to reshow later 732 if (DEBUG) Log.d(TAG, "remembering to reshow, hiding keyguard, " 733 + "disabling status bar expansion"); 734 mNeedToReshowWhenReenabled = true; 735 hideLocked(); 736 } else if (enabled && mNeedToReshowWhenReenabled) { 737 // reenabled after previously hidden, reshow 738 if (DEBUG) Log.d(TAG, "previously hidden, reshowing, reenabling " 739 + "status bar expansion"); 740 mNeedToReshowWhenReenabled = false; 741 742 if (mExitSecureCallback != null) { 743 if (DEBUG) Log.d(TAG, "onKeyguardExitResult(false), resetting"); 744 try { 745 mExitSecureCallback.onKeyguardExitResult(false); 746 } catch (RemoteException e) { 747 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 748 } 749 mExitSecureCallback = null; 750 resetStateLocked(null); 751 } else { 752 showLocked(null); 753 754 // block until we know the keygaurd is done drawing (and post a message 755 // to unblock us after a timeout so we don't risk blocking too long 756 // and causing an ANR). 757 mWaitingUntilKeyguardVisible = true; 758 mHandler.sendEmptyMessageDelayed(KEYGUARD_DONE_DRAWING, KEYGUARD_DONE_DRAWING_TIMEOUT_MS); 759 if (DEBUG) Log.d(TAG, "waiting until mWaitingUntilKeyguardVisible is false"); 760 while (mWaitingUntilKeyguardVisible) { 761 try { 762 wait(); 763 } catch (InterruptedException e) { 764 Thread.currentThread().interrupt(); 765 } 766 } 767 if (DEBUG) Log.d(TAG, "done waiting for mWaitingUntilKeyguardVisible"); 768 } 769 } 770 } 771 } 772 773 /** 774 * @see android.app.KeyguardManager#exitKeyguardSecurely 775 */ 776 public void verifyUnlock(IKeyguardExitCallback callback) { 777 synchronized (this) { 778 if (DEBUG) Log.d(TAG, "verifyUnlock"); 779 if (!mUpdateMonitor.isDeviceProvisioned()) { 780 // don't allow this api when the device isn't provisioned 781 if (DEBUG) Log.d(TAG, "ignoring because device isn't provisioned"); 782 try { 783 callback.onKeyguardExitResult(false); 784 } catch (RemoteException e) { 785 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 786 } 787 } else if (mExternallyEnabled) { 788 // this only applies when the user has externally disabled the 789 // keyguard. this is unexpected and means the user is not 790 // using the api properly. 791 Log.w(TAG, "verifyUnlock called when not externally disabled"); 792 try { 793 callback.onKeyguardExitResult(false); 794 } catch (RemoteException e) { 795 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 796 } 797 } else if (mExitSecureCallback != null) { 798 // already in progress with someone else 799 try { 800 callback.onKeyguardExitResult(false); 801 } catch (RemoteException e) { 802 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 803 } 804 } else { 805 mExitSecureCallback = callback; 806 verifyUnlockLocked(); 807 } 808 } 809 } 810 811 /** 812 * Is the keyguard currently showing? 813 */ 814 public boolean isShowing() { 815 return mShowing; 816 } 817 818 /** 819 * Is the keyguard currently showing and not being force hidden? 820 */ 821 public boolean isShowingAndNotHidden() { 822 return mShowing && !mHidden; 823 } 824 825 /** 826 * Notify us when the keyguard is hidden by another window 827 */ 828 public void setHidden(boolean isHidden) { 829 if (DEBUG) Log.d(TAG, "setHidden " + isHidden); 830 mUpdateMonitor.sendKeyguardVisibilityChanged(!isHidden); 831 mHandler.removeMessages(SET_HIDDEN); 832 Message msg = mHandler.obtainMessage(SET_HIDDEN, (isHidden ? 1 : 0), 0); 833 mHandler.sendMessage(msg); 834 } 835 836 /** 837 * Handles SET_HIDDEN message sent by setHidden() 838 */ 839 private void handleSetHidden(boolean isHidden) { 840 synchronized (KeyguardViewMediator.this) { 841 if (mHidden != isHidden) { 842 mHidden = isHidden; 843 updateActivityLockScreenState(); 844 adjustStatusBarLocked(); 845 } 846 } 847 } 848 849 /** 850 * Used by PhoneWindowManager to enable the keyguard due to a user activity timeout. 851 * This must be safe to call from any thread and with any window manager locks held. 852 */ 853 public void doKeyguardTimeout(Bundle options) { 854 mHandler.removeMessages(KEYGUARD_TIMEOUT); 855 Message msg = mHandler.obtainMessage(KEYGUARD_TIMEOUT, options); 856 mHandler.sendMessage(msg); 857 } 858 859 /** 860 * Given the state of the keyguard, is the input restricted? 861 * Input is restricted when the keyguard is showing, or when the keyguard 862 * was suppressed by an app that disabled the keyguard or we haven't been provisioned yet. 863 */ 864 public boolean isInputRestricted() { 865 return mShowing || mNeedToReshowWhenReenabled || !mUpdateMonitor.isDeviceProvisioned(); 866 } 867 868 /** 869 * Enable the keyguard if the settings are appropriate. 870 */ 871 private void doKeyguardLocked(Bundle options) { 872 // if another app is disabling us, don't show 873 if (!mExternallyEnabled) { 874 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because externally disabled"); 875 876 // note: we *should* set mNeedToReshowWhenReenabled=true here, but that makes 877 // for an occasional ugly flicker in this situation: 878 // 1) receive a call with the screen on (no keyguard) or make a call 879 // 2) screen times out 880 // 3) user hits key to turn screen back on 881 // instead, we reenable the keyguard when we know the screen is off and the call 882 // ends (see the broadcast receiver below) 883 // TODO: clean this up when we have better support at the window manager level 884 // for apps that wish to be on top of the keyguard 885 return; 886 } 887 888 // if the keyguard is already showing, don't bother 889 if (mKeyguardViewManager.isShowing()) { 890 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because it is already showing"); 891 return; 892 } 893 894 // if the setup wizard hasn't run yet, don't show 895 final boolean requireSim = !SystemProperties.getBoolean("keyguard.no_require_sim", 896 false); 897 final boolean provisioned = mUpdateMonitor.isDeviceProvisioned(); 898 final IccCardConstants.State state = mUpdateMonitor.getSimState(); 899 final boolean lockedOrMissing = state.isPinLocked() 900 || ((state == IccCardConstants.State.ABSENT 901 || state == IccCardConstants.State.PERM_DISABLED) 902 && requireSim); 903 904 if (!lockedOrMissing && !provisioned) { 905 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because device isn't provisioned" 906 + " and the sim is not locked or missing"); 907 return; 908 } 909 910 if (mUserManager.getUsers(true).size() < 2 911 && mLockPatternUtils.isLockScreenDisabled() && !lockedOrMissing) { 912 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because lockscreen is off"); 913 return; 914 } 915 916 if (DEBUG) Log.d(TAG, "doKeyguard: showing the lock screen"); 917 showLocked(options); 918 } 919 920 /** 921 * Dismiss the keyguard through the security layers. 922 */ 923 public void dismiss() { 924 if (mShowing && !mHidden) { 925 mKeyguardViewManager.dismiss(); 926 } 927 } 928 929 /** 930 * Send message to keyguard telling it to reset its state. 931 * @param options options about how to show the keyguard 932 * @see #handleReset() 933 */ 934 private void resetStateLocked(Bundle options) { 935 if (DEBUG) Log.d(TAG, "resetStateLocked"); 936 Message msg = mHandler.obtainMessage(RESET, options); 937 mHandler.sendMessage(msg); 938 } 939 940 /** 941 * Send message to keyguard telling it to verify unlock 942 * @see #handleVerifyUnlock() 943 */ 944 private void verifyUnlockLocked() { 945 if (DEBUG) Log.d(TAG, "verifyUnlockLocked"); 946 mHandler.sendEmptyMessage(VERIFY_UNLOCK); 947 } 948 949 950 /** 951 * Send a message to keyguard telling it the screen just turned on. 952 * @see #onScreenTurnedOff(int) 953 * @see #handleNotifyScreenOff 954 */ 955 private void notifyScreenOffLocked() { 956 if (DEBUG) Log.d(TAG, "notifyScreenOffLocked"); 957 mHandler.sendEmptyMessage(NOTIFY_SCREEN_OFF); 958 } 959 960 /** 961 * Send a message to keyguard telling it the screen just turned on. 962 * @see #onScreenTurnedOn() 963 * @see #handleNotifyScreenOn 964 */ 965 private void notifyScreenOnLocked(IKeyguardShowCallback result) { 966 if (DEBUG) Log.d(TAG, "notifyScreenOnLocked"); 967 Message msg = mHandler.obtainMessage(NOTIFY_SCREEN_ON, result); 968 mHandler.sendMessage(msg); 969 } 970 971 /** 972 * Send message to keyguard telling it about a wake key so it can adjust 973 * its state accordingly and then poke the wake lock when it is ready. 974 * @param keyCode The wake key. 975 * @see #handleWakeWhenReady 976 * @see #onWakeKeyWhenKeyguardShowing(int) 977 */ 978 private void wakeWhenReady(int keyCode) { 979 if (DBG_WAKE) Log.d(TAG, "wakeWhenReady(" + keyCode + ")"); 980 981 /** 982 * acquire the handoff lock that will keep the cpu running. this will 983 * be released once the keyguard has set itself up and poked the other wakelock 984 * in {@link #handleWakeWhenReady(int)} 985 */ 986 mWakeAndHandOff.acquire(); 987 988 Message msg = mHandler.obtainMessage(WAKE_WHEN_READY, keyCode, 0); 989 mHandler.sendMessage(msg); 990 } 991 992 /** 993 * Send message to keyguard telling it to show itself 994 * @see #handleShow() 995 */ 996 private void showLocked(Bundle options) { 997 if (DEBUG) Log.d(TAG, "showLocked"); 998 // ensure we stay awake until we are finished displaying the keyguard 999 mShowKeyguardWakeLock.acquire(); 1000 Message msg = mHandler.obtainMessage(SHOW, options); 1001 mHandler.sendMessage(msg); 1002 } 1003 1004 /** 1005 * Send message to keyguard telling it to hide itself 1006 * @see #handleHide() 1007 */ 1008 private void hideLocked() { 1009 if (DEBUG) Log.d(TAG, "hideLocked"); 1010 Message msg = mHandler.obtainMessage(HIDE); 1011 mHandler.sendMessage(msg); 1012 } 1013 1014 public boolean isSecure() { 1015 return mLockPatternUtils.isSecure() 1016 || KeyguardUpdateMonitor.getInstance(mContext).isSimPinSecure(); 1017 } 1018 1019 /** 1020 * Update the newUserId. Call while holding WindowManagerService lock. 1021 * NOTE: Should only be called by KeyguardViewMediator in response to the user id changing. 1022 * 1023 * @param newUserId The id of the incoming user. 1024 */ 1025 public void setCurrentUser(int newUserId) { 1026 mLockPatternUtils.setCurrentUser(newUserId); 1027 } 1028 1029 private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { 1030 @Override 1031 public void onReceive(Context context, Intent intent) { 1032 if (DELAYED_KEYGUARD_ACTION.equals(intent.getAction())) { 1033 final int sequence = intent.getIntExtra("seq", 0); 1034 if (DEBUG) Log.d(TAG, "received DELAYED_KEYGUARD_ACTION with seq = " 1035 + sequence + ", mDelayedShowingSequence = " + mDelayedShowingSequence); 1036 synchronized (KeyguardViewMediator.this) { 1037 if (mDelayedShowingSequence == sequence) { 1038 // Don't play lockscreen SFX if the screen went off due to timeout. 1039 mSuppressNextLockSound = true; 1040 doKeyguardLocked(null); 1041 } 1042 } 1043 } 1044 } 1045 }; 1046 1047 /** 1048 * When a key is received when the screen is off and the keyguard is showing, 1049 * we need to decide whether to actually turn on the screen, and if so, tell 1050 * the keyguard to prepare itself and poke the wake lock when it is ready. 1051 * 1052 * The 'Tq' suffix is per the documentation in {@link WindowManagerPolicy}. 1053 * Be sure not to take any action that takes a long time; any significant 1054 * action should be posted to a handler. 1055 * 1056 * @param keyCode The keycode of the key that woke the device 1057 */ 1058 public void onWakeKeyWhenKeyguardShowing(int keyCode) { 1059 if (DEBUG) Log.d(TAG, "onWakeKeyWhenKeyguardShowing(" + keyCode + ")"); 1060 1061 // give the keyguard view manager a chance to adjust the state of the 1062 // keyguard based on the key that woke the device before poking 1063 // the wake lock 1064 wakeWhenReady(keyCode); 1065 } 1066 1067 /** 1068 * When a wake motion such as an external mouse movement is received when the screen 1069 * is off and the keyguard is showing, we need to decide whether to actually turn 1070 * on the screen, and if so, tell the keyguard to prepare itself and poke the wake 1071 * lock when it is ready. 1072 * 1073 * The 'Tq' suffix is per the documentation in {@link WindowManagerPolicy}. 1074 * Be sure not to take any action that takes a long time; any significant 1075 * action should be posted to a handler. 1076 */ 1077 public void onWakeMotionWhenKeyguardShowing() { 1078 if (DEBUG) Log.d(TAG, "onWakeMotionWhenKeyguardShowing()"); 1079 1080 // give the keyguard view manager a chance to adjust the state of the 1081 // keyguard based on the key that woke the device before poking 1082 // the wake lock 1083 wakeWhenReady(KeyEvent.KEYCODE_UNKNOWN); 1084 } 1085 1086 public void keyguardDone(boolean authenticated, boolean wakeup) { 1087 mKeyguardDonePending = false; 1088 synchronized (this) { 1089 EventLog.writeEvent(70000, 2); 1090 if (DEBUG) Log.d(TAG, "keyguardDone(" + authenticated + ")"); 1091 Message msg = mHandler.obtainMessage(KEYGUARD_DONE); 1092 msg.arg1 = wakeup ? 1 : 0; 1093 mHandler.sendMessage(msg); 1094 1095 if (authenticated) { 1096 mUpdateMonitor.clearFailedUnlockAttempts(); 1097 } 1098 1099 if (mExitSecureCallback != null) { 1100 try { 1101 mExitSecureCallback.onKeyguardExitResult(authenticated); 1102 } catch (RemoteException e) { 1103 Slog.w(TAG, "Failed to call onKeyguardExitResult(" + authenticated + ")", e); 1104 } 1105 1106 mExitSecureCallback = null; 1107 1108 if (authenticated) { 1109 // after succesfully exiting securely, no need to reshow 1110 // the keyguard when they've released the lock 1111 mExternallyEnabled = true; 1112 mNeedToReshowWhenReenabled = false; 1113 } 1114 } 1115 } 1116 } 1117 1118 /** 1119 * This handler will be associated with the policy thread, which will also 1120 * be the UI thread of the keyguard. Since the apis of the policy, and therefore 1121 * this class, can be called by other threads, any action that directly 1122 * interacts with the keyguard ui should be posted to this handler, rather 1123 * than called directly. 1124 */ 1125 private Handler mHandler = new Handler(Looper.myLooper(), null, true /*async*/) { 1126 @Override 1127 public void handleMessage(Message msg) { 1128 switch (msg.what) { 1129 case SHOW: 1130 handleShow((Bundle) msg.obj); 1131 return ; 1132 case HIDE: 1133 handleHide(); 1134 return ; 1135 case RESET: 1136 handleReset((Bundle) msg.obj); 1137 return ; 1138 case VERIFY_UNLOCK: 1139 handleVerifyUnlock(); 1140 return; 1141 case NOTIFY_SCREEN_OFF: 1142 handleNotifyScreenOff(); 1143 return; 1144 case NOTIFY_SCREEN_ON: 1145 handleNotifyScreenOn((IKeyguardShowCallback) msg.obj); 1146 return; 1147 case WAKE_WHEN_READY: 1148 handleWakeWhenReady(msg.arg1); 1149 return; 1150 case KEYGUARD_DONE: 1151 handleKeyguardDone(msg.arg1 != 0); 1152 return; 1153 case KEYGUARD_DONE_DRAWING: 1154 handleKeyguardDoneDrawing(); 1155 return; 1156 case KEYGUARD_DONE_AUTHENTICATING: 1157 keyguardDone(true, true); 1158 return; 1159 case SET_HIDDEN: 1160 handleSetHidden(msg.arg1 != 0); 1161 break; 1162 case KEYGUARD_TIMEOUT: 1163 synchronized (KeyguardViewMediator.this) { 1164 doKeyguardLocked((Bundle) msg.obj); 1165 } 1166 break; 1167 case SHOW_ASSISTANT: 1168 handleShowAssistant(); 1169 break; 1170 } 1171 } 1172 }; 1173 1174 /** 1175 * @see #keyguardDone 1176 * @see #KEYGUARD_DONE 1177 */ 1178 private void handleKeyguardDone(boolean wakeup) { 1179 if (DEBUG) Log.d(TAG, "handleKeyguardDone"); 1180 handleHide(); 1181 if (wakeup) { 1182 wakeUp(); 1183 } 1184 1185 sendUserPresentBroadcast(); 1186 } 1187 1188 private void sendUserPresentBroadcast() { 1189 final UserHandle currentUser = new UserHandle(mLockPatternUtils.getCurrentUser()); 1190 mContext.sendBroadcastAsUser(USER_PRESENT_INTENT, currentUser); 1191 } 1192 1193 /** 1194 * @see #keyguardDoneDrawing 1195 * @see #KEYGUARD_DONE_DRAWING 1196 */ 1197 private void handleKeyguardDoneDrawing() { 1198 synchronized(this) { 1199 if (DEBUG) Log.d(TAG, "handleKeyguardDoneDrawing"); 1200 if (mWaitingUntilKeyguardVisible) { 1201 if (DEBUG) Log.d(TAG, "handleKeyguardDoneDrawing: notifying mWaitingUntilKeyguardVisible"); 1202 mWaitingUntilKeyguardVisible = false; 1203 notifyAll(); 1204 1205 // there will usually be two of these sent, one as a timeout, and one 1206 // as a result of the callback, so remove any remaining messages from 1207 // the queue 1208 mHandler.removeMessages(KEYGUARD_DONE_DRAWING); 1209 } 1210 } 1211 } 1212 1213 private void playSounds(boolean locked) { 1214 // User feedback for keyguard. 1215 1216 if (mSuppressNextLockSound) { 1217 mSuppressNextLockSound = false; 1218 return; 1219 } 1220 1221 final ContentResolver cr = mContext.getContentResolver(); 1222 if (Settings.System.getInt(cr, Settings.System.LOCKSCREEN_SOUNDS_ENABLED, 1) == 1) { 1223 final int whichSound = locked 1224 ? mLockSoundId 1225 : mUnlockSoundId; 1226 mLockSounds.stop(mLockSoundStreamId); 1227 // Init mAudioManager 1228 if (mAudioManager == null) { 1229 mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 1230 if (mAudioManager == null) return; 1231 mMasterStreamType = mAudioManager.getMasterStreamType(); 1232 } 1233 // If the stream is muted, don't play the sound 1234 if (mAudioManager.isStreamMute(mMasterStreamType)) return; 1235 1236 mLockSoundStreamId = mLockSounds.play(whichSound, 1237 mLockSoundVolume, mLockSoundVolume, 1/*priortiy*/, 0/*loop*/, 1.0f/*rate*/); 1238 } 1239 } 1240 1241 private void updateActivityLockScreenState() { 1242 try { 1243 ActivityManagerNative.getDefault().setLockScreenShown( 1244 mShowing && !mHidden); 1245 } catch (RemoteException e) { 1246 } 1247 } 1248 1249 /** 1250 * Handle message sent by {@link #showLocked}. 1251 * @see #SHOW 1252 */ 1253 private void handleShow(Bundle options) { 1254 synchronized (KeyguardViewMediator.this) { 1255 if (!mSystemReady) { 1256 if (DEBUG) Log.d(TAG, "ignoring handleShow because system is not ready."); 1257 return; 1258 } else { 1259 if (DEBUG) Log.d(TAG, "handleShow"); 1260 } 1261 1262 mKeyguardViewManager.show(options); 1263 mShowing = true; 1264 mKeyguardDonePending = false; 1265 updateActivityLockScreenState(); 1266 adjustStatusBarLocked(); 1267 userActivity(); 1268 try { 1269 ActivityManagerNative.getDefault().closeSystemDialogs("lock"); 1270 } catch (RemoteException e) { 1271 } 1272 1273 // Do this at the end to not slow down display of the keyguard. 1274 playSounds(true); 1275 1276 mShowKeyguardWakeLock.release(); 1277 } 1278 } 1279 1280 /** 1281 * Handle message sent by {@link #hideLocked()} 1282 * @see #HIDE 1283 */ 1284 private void handleHide() { 1285 synchronized (KeyguardViewMediator.this) { 1286 if (DEBUG) Log.d(TAG, "handleHide"); 1287 if (mWakeAndHandOff.isHeld()) { 1288 Log.w(TAG, "attempt to hide the keyguard while waking, ignored"); 1289 return; 1290 } 1291 1292 // only play "unlock" noises if not on a call (since the incall UI 1293 // disables the keyguard) 1294 if (TelephonyManager.EXTRA_STATE_IDLE.equals(mPhoneState)) { 1295 playSounds(false); 1296 } 1297 1298 mKeyguardViewManager.hide(); 1299 mShowing = false; 1300 mKeyguardDonePending = false; 1301 updateActivityLockScreenState(); 1302 adjustStatusBarLocked(); 1303 } 1304 } 1305 1306 private void adjustStatusBarLocked() { 1307 if (mStatusBarManager == null) { 1308 mStatusBarManager = (StatusBarManager) 1309 mContext.getSystemService(Context.STATUS_BAR_SERVICE); 1310 } 1311 if (mStatusBarManager == null) { 1312 Log.w(TAG, "Could not get status bar manager"); 1313 } else { 1314 if (mShowLockIcon) { 1315 // Give feedback to user when secure keyguard is active and engaged 1316 if (mShowing && isSecure()) { 1317 if (!mShowingLockIcon) { 1318 String contentDescription = mContext.getString( 1319 com.android.internal.R.string.status_bar_device_locked); 1320 mStatusBarManager.setIcon("secure", 1321 com.android.internal.R.drawable.stat_sys_secure, 0, 1322 contentDescription); 1323 mShowingLockIcon = true; 1324 } 1325 } else { 1326 if (mShowingLockIcon) { 1327 mStatusBarManager.removeIcon("secure"); 1328 mShowingLockIcon = false; 1329 } 1330 } 1331 } 1332 1333 // Disable aspects of the system/status/navigation bars that must not be re-enabled by 1334 // windows that appear on top, ever 1335 int flags = StatusBarManager.DISABLE_NONE; 1336 if (mShowing) { 1337 // Permanently disable components not available when keyguard is enabled 1338 // (like recents). Temporary enable/disable (e.g. the "back" button) are 1339 // done in KeyguardHostView. 1340 flags |= StatusBarManager.DISABLE_RECENT; 1341 if (isSecure() || !ENABLE_INSECURE_STATUS_BAR_EXPAND) { 1342 // showing secure lockscreen; disable expanding. 1343 flags |= StatusBarManager.DISABLE_EXPAND; 1344 } 1345 if (isSecure()) { 1346 // showing secure lockscreen; disable ticker. 1347 flags |= StatusBarManager.DISABLE_NOTIFICATION_TICKER; 1348 } 1349 if (!isAssistantAvailable()) { 1350 flags |= StatusBarManager.DISABLE_SEARCH; 1351 } 1352 } 1353 1354 if (DEBUG) { 1355 Log.d(TAG, "adjustStatusBarLocked: mShowing=" + mShowing + " mHidden=" + mHidden 1356 + " isSecure=" + isSecure() + " --> flags=0x" + Integer.toHexString(flags)); 1357 } 1358 1359 if (!(mContext instanceof Activity)) { 1360 mStatusBarManager.disable(flags); 1361 } 1362 } 1363 } 1364 1365 /** 1366 * Handle message sent by {@link #wakeWhenReady(int)} 1367 * @param keyCode The key that woke the device. 1368 * @see #WAKE_WHEN_READY 1369 */ 1370 private void handleWakeWhenReady(int keyCode) { 1371 synchronized (KeyguardViewMediator.this) { 1372 if (DBG_WAKE) Log.d(TAG, "handleWakeWhenReady(" + keyCode + ")"); 1373 1374 // this should result in a call to 'poke wakelock' which will set a timeout 1375 // on releasing the wakelock 1376 if (!mKeyguardViewManager.wakeWhenReadyTq(keyCode)) { 1377 // poke wakelock ourselves if keyguard is no longer active 1378 Log.w(TAG, "mKeyguardViewManager.wakeWhenReadyTq did not poke wake lock, so poke it ourselves"); 1379 userActivity(); 1380 } 1381 1382 /** 1383 * Now that the keyguard is ready and has poked the wake lock, we can 1384 * release the handoff wakelock 1385 */ 1386 mWakeAndHandOff.release(); 1387 } 1388 } 1389 1390 /** 1391 * Handle message sent by {@link #resetStateLocked(Bundle)} 1392 * @see #RESET 1393 */ 1394 private void handleReset(Bundle options) { 1395 if (options == null) { 1396 options = new Bundle(); 1397 } 1398 options.putBoolean(KeyguardViewManager.IS_SWITCHING_USER, mSwitchingUser); 1399 synchronized (KeyguardViewMediator.this) { 1400 if (DEBUG) Log.d(TAG, "handleReset"); 1401 mKeyguardViewManager.reset(options); 1402 } 1403 } 1404 1405 /** 1406 * Handle message sent by {@link #verifyUnlock} 1407 * @see #VERIFY_UNLOCK 1408 */ 1409 private void handleVerifyUnlock() { 1410 synchronized (KeyguardViewMediator.this) { 1411 if (DEBUG) Log.d(TAG, "handleVerifyUnlock"); 1412 mKeyguardViewManager.verifyUnlock(); 1413 mShowing = true; 1414 updateActivityLockScreenState(); 1415 } 1416 } 1417 1418 /** 1419 * Handle message sent by {@link #notifyScreenOffLocked()} 1420 * @see #NOTIFY_SCREEN_OFF 1421 */ 1422 private void handleNotifyScreenOff() { 1423 synchronized (KeyguardViewMediator.this) { 1424 if (DEBUG) Log.d(TAG, "handleNotifyScreenOff"); 1425 mKeyguardViewManager.onScreenTurnedOff(); 1426 } 1427 } 1428 1429 /** 1430 * Handle message sent by {@link #notifyScreenOnLocked()} 1431 * @see #NOTIFY_SCREEN_ON 1432 */ 1433 private void handleNotifyScreenOn(IKeyguardShowCallback callback) { 1434 synchronized (KeyguardViewMediator.this) { 1435 if (DEBUG) Log.d(TAG, "handleNotifyScreenOn"); 1436 mKeyguardViewManager.onScreenTurnedOn(callback); 1437 } 1438 } 1439 1440 public boolean isDismissable() { 1441 return mKeyguardDonePending || !isSecure(); 1442 } 1443 1444 public void showAssistant() { 1445 Message msg = mHandler.obtainMessage(SHOW_ASSISTANT); 1446 mHandler.sendMessage(msg); 1447 } 1448 1449 public void handleShowAssistant() { 1450 mKeyguardViewManager.showAssistant(); 1451 } 1452 1453 private boolean isAssistantAvailable() { 1454 return mSearchManager != null 1455 && mSearchManager.getAssistIntent(mContext, false, UserHandle.USER_CURRENT) != null; 1456 } 1457} 1458