KeyguardViewMediator.java revision 25190577cc69eaa5930c6fbdc2fcca03afc84982
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 Intent mUserPresentIntent; 240 241 /** 242 * {@link #setKeyguardEnabled} waits on this condition when it reenables 243 * the keyguard. 244 */ 245 private boolean mWaitingUntilKeyguardVisible = false; 246 private LockPatternUtils mLockPatternUtils; 247 private boolean mKeyguardDonePending = false; 248 249 private SoundPool mLockSounds; 250 private int mLockSoundId; 251 private int mUnlockSoundId; 252 private int mLockSoundStreamId; 253 254 /** 255 * The volume applied to the lock/unlock sounds. 256 */ 257 private final float mLockSoundVolume; 258 259 /** 260 * The callback used by the keyguard view to tell the {@link KeyguardViewMediator} 261 * various things. 262 */ 263 public interface ViewMediatorCallback { 264 265 /** 266 * Wake the device immediately. 267 */ 268 void wakeUp(); 269 270 /** 271 * Reports user activity and requests that the screen stay on. 272 */ 273 void userActivity(); 274 275 /** 276 * Reports user activity and requests that the screen stay on for at least 277 * the specified amount of time. 278 * @param millis The amount of time in millis. This value is currently ignored. 279 */ 280 void userActivity(long millis); 281 282 /** 283 * Report that the keyguard is done. 284 * @param authenticated Whether the user securely got past the keyguard. 285 * the only reason for this to be false is if the keyguard was instructed 286 * to appear temporarily to verify the user is supposed to get past the 287 * keyguard, and the user fails to do so. 288 */ 289 void keyguardDone(boolean authenticated); 290 291 /** 292 * Report that the keyguard is done drawing. 293 */ 294 void keyguardDoneDrawing(); 295 296 /** 297 * Tell ViewMediator that the current view needs IME input 298 * @param needsInput 299 */ 300 void setNeedsInput(boolean needsInput); 301 302 /** 303 * Tell view mediator that the keyguard view's desired user activity timeout 304 * has changed and needs to be reapplied to the window. 305 */ 306 void onUserActivityTimeoutChanged(); 307 308 /** 309 * Report that the keyguard is dismissable, pending the next keyguardDone call. 310 */ 311 void keyguardDonePending(); 312 } 313 314 KeyguardUpdateMonitorCallback mUpdateCallback = new KeyguardUpdateMonitorCallback() { 315 316 @Override 317 public void onUserSwitching(int userId) { 318 // Note that the mLockPatternUtils user has already been updated from setCurrentUser. 319 // We need to force a reset of the views, since lockNow (called by 320 // ActivityManagerService) will not reconstruct the keyguard if it is already showing. 321 synchronized (KeyguardViewMediator.this) { 322 mSwitchingUser = true; 323 resetStateLocked(null); 324 adjustStatusBarLocked(); 325 // Disable face unlock when the user switches. 326 KeyguardUpdateMonitor.getInstance(mContext).setAlternateUnlockEnabled(false); 327 } 328 } 329 330 @Override 331 public void onUserSwitchComplete(int userId) { 332 mSwitchingUser = false; 333 } 334 335 @Override 336 public void onUserRemoved(int userId) { 337 mLockPatternUtils.removeUser(userId); 338 } 339 340 @Override 341 void onPhoneStateChanged(int phoneState) { 342 synchronized (KeyguardViewMediator.this) { 343 if (TelephonyManager.CALL_STATE_IDLE == phoneState // call ending 344 && !mScreenOn // screen off 345 && mExternallyEnabled) { // not disabled by any app 346 347 // note: this is a way to gracefully reenable the keyguard when the call 348 // ends and the screen is off without always reenabling the keyguard 349 // each time the screen turns off while in call (and having an occasional ugly 350 // flicker while turning back on the screen and disabling the keyguard again). 351 if (DEBUG) Log.d(TAG, "screen is off and call ended, let's make sure the " 352 + "keyguard is showing"); 353 doKeyguardLocked(null); 354 } 355 } 356 }; 357 358 @Override 359 public void onClockVisibilityChanged() { 360 adjustStatusBarLocked(); 361 } 362 363 @Override 364 public void onDeviceProvisioned() { 365 sendUserPresentBroadcast(); 366 } 367 368 @Override 369 public void onSimStateChanged(IccCardConstants.State simState) { 370 if (DEBUG) Log.d(TAG, "onSimStateChanged: " + simState); 371 372 switch (simState) { 373 case NOT_READY: 374 case ABSENT: 375 // only force lock screen in case of missing sim if user hasn't 376 // gone through setup wizard 377 synchronized (this) { 378 if (!mUpdateMonitor.isDeviceProvisioned()) { 379 if (!isShowing()) { 380 if (DEBUG) Log.d(TAG, "ICC_ABSENT isn't showing," 381 + " we need to show the keyguard since the " 382 + "device isn't provisioned yet."); 383 doKeyguardLocked(null); 384 } else { 385 resetStateLocked(null); 386 } 387 } 388 } 389 break; 390 case PIN_REQUIRED: 391 case PUK_REQUIRED: 392 synchronized (this) { 393 if (!isShowing()) { 394 if (DEBUG) Log.d(TAG, "INTENT_VALUE_ICC_LOCKED and keygaurd isn't " 395 + "showing; need to show keyguard so user can enter sim pin"); 396 doKeyguardLocked(null); 397 } else { 398 resetStateLocked(null); 399 } 400 } 401 break; 402 case PERM_DISABLED: 403 synchronized (this) { 404 if (!isShowing()) { 405 if (DEBUG) Log.d(TAG, "PERM_DISABLED and " 406 + "keygaurd isn't showing."); 407 doKeyguardLocked(null); 408 } else { 409 if (DEBUG) Log.d(TAG, "PERM_DISABLED, resetStateLocked to" 410 + "show permanently disabled message in lockscreen."); 411 resetStateLocked(null); 412 } 413 } 414 break; 415 case READY: 416 synchronized (this) { 417 if (isShowing()) { 418 resetStateLocked(null); 419 } 420 } 421 break; 422 } 423 } 424 425 }; 426 427 ViewMediatorCallback mViewMediatorCallback = new ViewMediatorCallback() { 428 public void wakeUp() { 429 KeyguardViewMediator.this.wakeUp(); 430 } 431 432 public void userActivity() { 433 KeyguardViewMediator.this.userActivity(); 434 } 435 436 public void userActivity(long holdMs) { 437 KeyguardViewMediator.this.userActivity(holdMs); 438 } 439 440 public void keyguardDone(boolean authenticated) { 441 KeyguardViewMediator.this.keyguardDone(authenticated, true); 442 } 443 444 public void keyguardDoneDrawing() { 445 mHandler.sendEmptyMessage(KEYGUARD_DONE_DRAWING); 446 } 447 448 @Override 449 public void setNeedsInput(boolean needsInput) { 450 mKeyguardViewManager.setNeedsInput(needsInput); 451 } 452 453 @Override 454 public void onUserActivityTimeoutChanged() { 455 mKeyguardViewManager.updateUserActivityTimeout(); 456 } 457 458 @Override 459 public void keyguardDonePending() { 460 mKeyguardDonePending = true; 461 } 462 }; 463 464 public void wakeUp() { 465 mPM.wakeUp(SystemClock.uptimeMillis()); 466 } 467 468 private void userActivity() { 469 userActivity(AWAKE_INTERVAL_DEFAULT_MS); 470 } 471 472 public void userActivity(long holdMs) { 473 // We ignore the hold time. Eventually we should remove it. 474 // Instead, the keyguard window has an explicit user activity timeout set on it. 475 mPM.userActivity(SystemClock.uptimeMillis(), false); 476 } 477 478 /** 479 * Construct a KeyguardViewMediator 480 * @param context 481 * @param lockPatternUtils optional mock interface for LockPatternUtils 482 */ 483 public KeyguardViewMediator(Context context, LockPatternUtils lockPatternUtils) { 484 mContext = context; 485 mPM = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 486 mUserManager = (UserManager) mContext.getSystemService(Context.USER_SERVICE); 487 mShowKeyguardWakeLock = mPM.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "show keyguard"); 488 mShowKeyguardWakeLock.setReferenceCounted(false); 489 490 mWakeAndHandOff = mPM.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "keyguardWakeAndHandOff"); 491 mWakeAndHandOff.setReferenceCounted(false); 492 493 mContext.registerReceiver(mBroadcastReceiver, new IntentFilter(DELAYED_KEYGUARD_ACTION)); 494 495 mAlarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 496 497 mUpdateMonitor = KeyguardUpdateMonitor.getInstance(context); 498 499 mLockPatternUtils = lockPatternUtils != null 500 ? lockPatternUtils : new LockPatternUtils(mContext); 501 mLockPatternUtils.setCurrentUser(UserHandle.USER_OWNER); 502 503 WindowManager wm = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE); 504 505 mKeyguardViewManager = new KeyguardViewManager(context, wm, mViewMediatorCallback, 506 mLockPatternUtils); 507 508 mUserPresentIntent = new Intent(Intent.ACTION_USER_PRESENT); 509 mUserPresentIntent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING 510 | Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 511 512 final ContentResolver cr = mContext.getContentResolver(); 513 mShowLockIcon = (Settings.System.getInt(cr, "show_status_bar_lock", 0) == 1); 514 515 mScreenOn = mPM.isScreenOn(); 516 517 mLockSounds = new SoundPool(1, AudioManager.STREAM_SYSTEM, 0); 518 String soundPath = Settings.Global.getString(cr, Settings.Global.LOCK_SOUND); 519 if (soundPath != null) { 520 mLockSoundId = mLockSounds.load(soundPath, 1); 521 } 522 if (soundPath == null || mLockSoundId == 0) { 523 Log.w(TAG, "failed to load lock sound from " + soundPath); 524 } 525 soundPath = Settings.Global.getString(cr, Settings.Global.UNLOCK_SOUND); 526 if (soundPath != null) { 527 mUnlockSoundId = mLockSounds.load(soundPath, 1); 528 } 529 if (soundPath == null || mUnlockSoundId == 0) { 530 Log.w(TAG, "failed to load unlock sound from " + soundPath); 531 } 532 int lockSoundDefaultAttenuation = context.getResources().getInteger( 533 com.android.internal.R.integer.config_lockSoundVolumeDb); 534 mLockSoundVolume = (float)Math.pow(10, (float)lockSoundDefaultAttenuation/20); 535 } 536 537 /** 538 * Let us know that the system is ready after startup. 539 */ 540 public void onSystemReady() { 541 mSearchManager = (SearchManager) mContext.getSystemService(Context.SEARCH_SERVICE); 542 synchronized (this) { 543 if (DEBUG) Log.d(TAG, "onSystemReady"); 544 mSystemReady = true; 545 mUpdateMonitor.registerCallback(mUpdateCallback); 546 547 // Suppress biometric unlock right after boot until things have settled if it is the 548 // selected security method, otherwise unsuppress it. It must be unsuppressed if it is 549 // not the selected security method for the following reason: if the user starts 550 // without a screen lock selected, the biometric unlock would be suppressed the first 551 // time they try to use it. 552 // 553 // Note that the biometric unlock will still not show if it is not the selected method. 554 // Calling setAlternateUnlockEnabled(true) simply says don't suppress it if it is the 555 // selected method. 556 if (mLockPatternUtils.usingBiometricWeak() 557 && mLockPatternUtils.isBiometricWeakInstalled()) { 558 if (DEBUG) Log.d(TAG, "suppressing biometric unlock during boot"); 559 mUpdateMonitor.setAlternateUnlockEnabled(false); 560 } else { 561 mUpdateMonitor.setAlternateUnlockEnabled(true); 562 } 563 564 doKeyguardLocked(null); 565 } 566 // Most services aren't available until the system reaches the ready state, so we 567 // send it here when the device first boots. 568 maybeSendUserPresentBroadcast(); 569 } 570 571 /** 572 * Called to let us know the screen was turned off. 573 * @param why either {@link WindowManagerPolicy#OFF_BECAUSE_OF_USER}, 574 * {@link WindowManagerPolicy#OFF_BECAUSE_OF_TIMEOUT} or 575 * {@link WindowManagerPolicy#OFF_BECAUSE_OF_PROX_SENSOR}. 576 */ 577 public void onScreenTurnedOff(int why) { 578 synchronized (this) { 579 mScreenOn = false; 580 if (DEBUG) Log.d(TAG, "onScreenTurnedOff(" + why + ")"); 581 582 mKeyguardDonePending = false; 583 584 // Lock immediately based on setting if secure (user has a pin/pattern/password). 585 // This also "locks" the device when not secure to provide easy access to the 586 // camera while preventing unwanted input. 587 final boolean lockImmediately = 588 mLockPatternUtils.getPowerButtonInstantlyLocks() || !mLockPatternUtils.isSecure(); 589 590 if (mExitSecureCallback != null) { 591 if (DEBUG) Log.d(TAG, "pending exit secure callback cancelled"); 592 try { 593 mExitSecureCallback.onKeyguardExitResult(false); 594 } catch (RemoteException e) { 595 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 596 } 597 mExitSecureCallback = null; 598 if (!mExternallyEnabled) { 599 hideLocked(); 600 } 601 } else if (mShowing) { 602 notifyScreenOffLocked(); 603 resetStateLocked(null); 604 } else if (why == WindowManagerPolicy.OFF_BECAUSE_OF_TIMEOUT 605 || (why == WindowManagerPolicy.OFF_BECAUSE_OF_USER && !lockImmediately)) { 606 doKeyguardLaterLocked(); 607 } else if (why == WindowManagerPolicy.OFF_BECAUSE_OF_PROX_SENSOR) { 608 // Do not enable the keyguard if the prox sensor forced the screen off. 609 } else { 610 doKeyguardLocked(null); 611 } 612 } 613 } 614 615 private void doKeyguardLaterLocked() { 616 // if the screen turned off because of timeout or the user hit the power button 617 // and we don't need to lock immediately, set an alarm 618 // to enable it a little bit later (i.e, give the user a chance 619 // to turn the screen back on within a certain window without 620 // having to unlock the screen) 621 final ContentResolver cr = mContext.getContentResolver(); 622 623 // From DisplaySettings 624 long displayTimeout = Settings.System.getInt(cr, SCREEN_OFF_TIMEOUT, 625 KEYGUARD_DISPLAY_TIMEOUT_DELAY_DEFAULT); 626 627 // From SecuritySettings 628 final long lockAfterTimeout = Settings.Secure.getInt(cr, 629 Settings.Secure.LOCK_SCREEN_LOCK_AFTER_TIMEOUT, 630 KEYGUARD_LOCK_AFTER_DELAY_DEFAULT); 631 632 // From DevicePolicyAdmin 633 final long policyTimeout = mLockPatternUtils.getDevicePolicyManager() 634 .getMaximumTimeToLock(null, mLockPatternUtils.getCurrentUser()); 635 636 long timeout; 637 if (policyTimeout > 0) { 638 // policy in effect. Make sure we don't go beyond policy limit. 639 displayTimeout = Math.max(displayTimeout, 0); // ignore negative values 640 timeout = Math.min(policyTimeout - displayTimeout, lockAfterTimeout); 641 } else { 642 timeout = lockAfterTimeout; 643 } 644 645 if (timeout <= 0) { 646 // Lock now 647 mSuppressNextLockSound = true; 648 doKeyguardLocked(null); 649 } else { 650 // Lock in the future 651 long when = SystemClock.elapsedRealtime() + timeout; 652 Intent intent = new Intent(DELAYED_KEYGUARD_ACTION); 653 intent.putExtra("seq", mDelayedShowingSequence); 654 PendingIntent sender = PendingIntent.getBroadcast(mContext, 655 0, intent, PendingIntent.FLAG_CANCEL_CURRENT); 656 mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, when, sender); 657 if (DEBUG) Log.d(TAG, "setting alarm to turn off keyguard, seq = " 658 + mDelayedShowingSequence); 659 } 660 } 661 662 private void cancelDoKeyguardLaterLocked() { 663 mDelayedShowingSequence++; 664 } 665 666 /** 667 * Let's us know the screen was turned on. 668 */ 669 public void onScreenTurnedOn(IKeyguardShowCallback callback) { 670 synchronized (this) { 671 mScreenOn = true; 672 cancelDoKeyguardLaterLocked(); 673 if (DEBUG) Log.d(TAG, "onScreenTurnedOn, seq = " + mDelayedShowingSequence); 674 if (callback != null) { 675 notifyScreenOnLocked(callback); 676 } 677 } 678 maybeSendUserPresentBroadcast(); 679 } 680 681 private void maybeSendUserPresentBroadcast() { 682 if (mSystemReady && mLockPatternUtils.isLockScreenDisabled() 683 && mUserManager.getUsers(true).size() == 1) { 684 // Lock screen is disabled because the user has set the preference to "None". 685 // In this case, send out ACTION_USER_PRESENT here instead of in 686 // handleKeyguardDone() 687 sendUserPresentBroadcast(); 688 } 689 } 690 691 /** 692 * A dream started. We should lock after the usual screen-off lock timeout but only 693 * if there is a secure lock pattern. 694 */ 695 public void onDreamingStarted() { 696 synchronized (this) { 697 if (mScreenOn && mLockPatternUtils.isSecure()) { 698 doKeyguardLaterLocked(); 699 } 700 } 701 } 702 703 /** 704 * A dream stopped. 705 */ 706 public void onDreamingStopped() { 707 synchronized (this) { 708 if (mScreenOn) { 709 cancelDoKeyguardLaterLocked(); 710 } 711 } 712 } 713 714 /** 715 * Same semantics as {@link WindowManagerPolicy#enableKeyguard}; provide 716 * a way for external stuff to override normal keyguard behavior. For instance 717 * the phone app disables the keyguard when it receives incoming calls. 718 */ 719 public void setKeyguardEnabled(boolean enabled) { 720 synchronized (this) { 721 if (DEBUG) Log.d(TAG, "setKeyguardEnabled(" + enabled + ")"); 722 723 mExternallyEnabled = enabled; 724 725 if (!enabled && mShowing) { 726 if (mExitSecureCallback != null) { 727 if (DEBUG) Log.d(TAG, "in process of verifyUnlock request, ignoring"); 728 // we're in the process of handling a request to verify the user 729 // can get past the keyguard. ignore extraneous requests to disable / reenable 730 return; 731 } 732 733 // hiding keyguard that is showing, remember to reshow later 734 if (DEBUG) Log.d(TAG, "remembering to reshow, hiding keyguard, " 735 + "disabling status bar expansion"); 736 mNeedToReshowWhenReenabled = true; 737 hideLocked(); 738 } else if (enabled && mNeedToReshowWhenReenabled) { 739 // reenabled after previously hidden, reshow 740 if (DEBUG) Log.d(TAG, "previously hidden, reshowing, reenabling " 741 + "status bar expansion"); 742 mNeedToReshowWhenReenabled = false; 743 744 if (mExitSecureCallback != null) { 745 if (DEBUG) Log.d(TAG, "onKeyguardExitResult(false), resetting"); 746 try { 747 mExitSecureCallback.onKeyguardExitResult(false); 748 } catch (RemoteException e) { 749 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 750 } 751 mExitSecureCallback = null; 752 resetStateLocked(null); 753 } else { 754 showLocked(null); 755 756 // block until we know the keygaurd is done drawing (and post a message 757 // to unblock us after a timeout so we don't risk blocking too long 758 // and causing an ANR). 759 mWaitingUntilKeyguardVisible = true; 760 mHandler.sendEmptyMessageDelayed(KEYGUARD_DONE_DRAWING, KEYGUARD_DONE_DRAWING_TIMEOUT_MS); 761 if (DEBUG) Log.d(TAG, "waiting until mWaitingUntilKeyguardVisible is false"); 762 while (mWaitingUntilKeyguardVisible) { 763 try { 764 wait(); 765 } catch (InterruptedException e) { 766 Thread.currentThread().interrupt(); 767 } 768 } 769 if (DEBUG) Log.d(TAG, "done waiting for mWaitingUntilKeyguardVisible"); 770 } 771 } 772 } 773 } 774 775 /** 776 * @see android.app.KeyguardManager#exitKeyguardSecurely 777 */ 778 public void verifyUnlock(IKeyguardExitCallback callback) { 779 synchronized (this) { 780 if (DEBUG) Log.d(TAG, "verifyUnlock"); 781 if (!mUpdateMonitor.isDeviceProvisioned()) { 782 // don't allow this api when the device isn't provisioned 783 if (DEBUG) Log.d(TAG, "ignoring because device isn't provisioned"); 784 try { 785 callback.onKeyguardExitResult(false); 786 } catch (RemoteException e) { 787 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 788 } 789 } else if (mExternallyEnabled) { 790 // this only applies when the user has externally disabled the 791 // keyguard. this is unexpected and means the user is not 792 // using the api properly. 793 Log.w(TAG, "verifyUnlock called when not externally disabled"); 794 try { 795 callback.onKeyguardExitResult(false); 796 } catch (RemoteException e) { 797 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 798 } 799 } else if (mExitSecureCallback != null) { 800 // already in progress with someone else 801 try { 802 callback.onKeyguardExitResult(false); 803 } catch (RemoteException e) { 804 Slog.w(TAG, "Failed to call onKeyguardExitResult(false)", e); 805 } 806 } else { 807 mExitSecureCallback = callback; 808 verifyUnlockLocked(); 809 } 810 } 811 } 812 813 /** 814 * Is the keyguard currently showing? 815 */ 816 public boolean isShowing() { 817 return mShowing; 818 } 819 820 /** 821 * Is the keyguard currently showing and not being force hidden? 822 */ 823 public boolean isShowingAndNotHidden() { 824 return mShowing && !mHidden; 825 } 826 827 /** 828 * Notify us when the keyguard is hidden by another window 829 */ 830 public void setHidden(boolean isHidden) { 831 if (DEBUG) Log.d(TAG, "setHidden " + isHidden); 832 mUpdateMonitor.sendKeyguardVisibilityChanged(!isHidden); 833 mHandler.removeMessages(SET_HIDDEN); 834 Message msg = mHandler.obtainMessage(SET_HIDDEN, (isHidden ? 1 : 0), 0); 835 mHandler.sendMessage(msg); 836 } 837 838 /** 839 * Handles SET_HIDDEN message sent by setHidden() 840 */ 841 private void handleSetHidden(boolean isHidden) { 842 synchronized (KeyguardViewMediator.this) { 843 if (mHidden != isHidden) { 844 mHidden = isHidden; 845 updateActivityLockScreenState(); 846 adjustStatusBarLocked(); 847 } 848 } 849 } 850 851 /** 852 * Used by PhoneWindowManager to enable the keyguard due to a user activity timeout. 853 * This must be safe to call from any thread and with any window manager locks held. 854 */ 855 public void doKeyguardTimeout(Bundle options) { 856 mHandler.removeMessages(KEYGUARD_TIMEOUT); 857 Message msg = mHandler.obtainMessage(KEYGUARD_TIMEOUT, options); 858 mHandler.sendMessage(msg); 859 } 860 861 /** 862 * Given the state of the keyguard, is the input restricted? 863 * Input is restricted when the keyguard is showing, or when the keyguard 864 * was suppressed by an app that disabled the keyguard or we haven't been provisioned yet. 865 */ 866 public boolean isInputRestricted() { 867 return mShowing || mNeedToReshowWhenReenabled || !mUpdateMonitor.isDeviceProvisioned(); 868 } 869 870 /** 871 * Enable the keyguard if the settings are appropriate. 872 */ 873 private void doKeyguardLocked(Bundle options) { 874 // if another app is disabling us, don't show 875 if (!mExternallyEnabled) { 876 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because externally disabled"); 877 878 // note: we *should* set mNeedToReshowWhenReenabled=true here, but that makes 879 // for an occasional ugly flicker in this situation: 880 // 1) receive a call with the screen on (no keyguard) or make a call 881 // 2) screen times out 882 // 3) user hits key to turn screen back on 883 // instead, we reenable the keyguard when we know the screen is off and the call 884 // ends (see the broadcast receiver below) 885 // TODO: clean this up when we have better support at the window manager level 886 // for apps that wish to be on top of the keyguard 887 return; 888 } 889 890 // if the keyguard is already showing, don't bother 891 if (mKeyguardViewManager.isShowing()) { 892 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because it is already showing"); 893 return; 894 } 895 896 // if the setup wizard hasn't run yet, don't show 897 final boolean requireSim = !SystemProperties.getBoolean("keyguard.no_require_sim", 898 false); 899 final boolean provisioned = mUpdateMonitor.isDeviceProvisioned(); 900 final IccCardConstants.State state = mUpdateMonitor.getSimState(); 901 final boolean lockedOrMissing = state.isPinLocked() 902 || ((state == IccCardConstants.State.ABSENT 903 || state == IccCardConstants.State.PERM_DISABLED) 904 && requireSim); 905 906 if (!lockedOrMissing && !provisioned) { 907 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because device isn't provisioned" 908 + " and the sim is not locked or missing"); 909 return; 910 } 911 912 if (mUserManager.getUsers(true).size() < 2 913 && mLockPatternUtils.isLockScreenDisabled() && !lockedOrMissing) { 914 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because lockscreen is off"); 915 return; 916 } 917 918 if (DEBUG) Log.d(TAG, "doKeyguard: showing the lock screen"); 919 showLocked(options); 920 } 921 922 /** 923 * Dismiss the keyguard through the security layers. 924 */ 925 public void dismiss() { 926 if (mShowing && !mHidden) { 927 mKeyguardViewManager.dismiss(); 928 } 929 } 930 931 /** 932 * Send message to keyguard telling it to reset its state. 933 * @param options options about how to show the keyguard 934 * @see #handleReset() 935 */ 936 private void resetStateLocked(Bundle options) { 937 if (DEBUG) Log.d(TAG, "resetStateLocked"); 938 Message msg = mHandler.obtainMessage(RESET, options); 939 mHandler.sendMessage(msg); 940 } 941 942 /** 943 * Send message to keyguard telling it to verify unlock 944 * @see #handleVerifyUnlock() 945 */ 946 private void verifyUnlockLocked() { 947 if (DEBUG) Log.d(TAG, "verifyUnlockLocked"); 948 mHandler.sendEmptyMessage(VERIFY_UNLOCK); 949 } 950 951 952 /** 953 * Send a message to keyguard telling it the screen just turned on. 954 * @see #onScreenTurnedOff(int) 955 * @see #handleNotifyScreenOff 956 */ 957 private void notifyScreenOffLocked() { 958 if (DEBUG) Log.d(TAG, "notifyScreenOffLocked"); 959 mHandler.sendEmptyMessage(NOTIFY_SCREEN_OFF); 960 } 961 962 /** 963 * Send a message to keyguard telling it the screen just turned on. 964 * @see #onScreenTurnedOn() 965 * @see #handleNotifyScreenOn 966 */ 967 private void notifyScreenOnLocked(IKeyguardShowCallback result) { 968 if (DEBUG) Log.d(TAG, "notifyScreenOnLocked"); 969 Message msg = mHandler.obtainMessage(NOTIFY_SCREEN_ON, result); 970 mHandler.sendMessage(msg); 971 } 972 973 /** 974 * Send message to keyguard telling it about a wake key so it can adjust 975 * its state accordingly and then poke the wake lock when it is ready. 976 * @param keyCode The wake key. 977 * @see #handleWakeWhenReady 978 * @see #onWakeKeyWhenKeyguardShowing(int) 979 */ 980 private void wakeWhenReady(int keyCode) { 981 if (DBG_WAKE) Log.d(TAG, "wakeWhenReady(" + keyCode + ")"); 982 983 /** 984 * acquire the handoff lock that will keep the cpu running. this will 985 * be released once the keyguard has set itself up and poked the other wakelock 986 * in {@link #handleWakeWhenReady(int)} 987 */ 988 mWakeAndHandOff.acquire(); 989 990 Message msg = mHandler.obtainMessage(WAKE_WHEN_READY, keyCode, 0); 991 mHandler.sendMessage(msg); 992 } 993 994 /** 995 * Send message to keyguard telling it to show itself 996 * @see #handleShow() 997 */ 998 private void showLocked(Bundle options) { 999 if (DEBUG) Log.d(TAG, "showLocked"); 1000 // ensure we stay awake until we are finished displaying the keyguard 1001 mShowKeyguardWakeLock.acquire(); 1002 Message msg = mHandler.obtainMessage(SHOW, options); 1003 mHandler.sendMessage(msg); 1004 } 1005 1006 /** 1007 * Send message to keyguard telling it to hide itself 1008 * @see #handleHide() 1009 */ 1010 private void hideLocked() { 1011 if (DEBUG) Log.d(TAG, "hideLocked"); 1012 Message msg = mHandler.obtainMessage(HIDE); 1013 mHandler.sendMessage(msg); 1014 } 1015 1016 public boolean isSecure() { 1017 return mLockPatternUtils.isSecure() 1018 || KeyguardUpdateMonitor.getInstance(mContext).isSimPinSecure(); 1019 } 1020 1021 /** 1022 * Update the newUserId. Call while holding WindowManagerService lock. 1023 * NOTE: Should only be called by KeyguardViewMediator in response to the user id changing. 1024 * 1025 * @param newUserId The id of the incoming user. 1026 */ 1027 public void setCurrentUser(int newUserId) { 1028 mLockPatternUtils.setCurrentUser(newUserId); 1029 } 1030 1031 private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { 1032 @Override 1033 public void onReceive(Context context, Intent intent) { 1034 if (DELAYED_KEYGUARD_ACTION.equals(intent.getAction())) { 1035 final int sequence = intent.getIntExtra("seq", 0); 1036 if (DEBUG) Log.d(TAG, "received DELAYED_KEYGUARD_ACTION with seq = " 1037 + sequence + ", mDelayedShowingSequence = " + mDelayedShowingSequence); 1038 synchronized (KeyguardViewMediator.this) { 1039 if (mDelayedShowingSequence == sequence) { 1040 // Don't play lockscreen SFX if the screen went off due to timeout. 1041 mSuppressNextLockSound = true; 1042 doKeyguardLocked(null); 1043 } 1044 } 1045 } 1046 } 1047 }; 1048 1049 /** 1050 * When a key is received when the screen is off and the keyguard is showing, 1051 * we need to decide whether to actually turn on the screen, and if so, tell 1052 * the keyguard to prepare itself and poke the wake lock when it is ready. 1053 * 1054 * The 'Tq' suffix is per the documentation in {@link WindowManagerPolicy}. 1055 * Be sure not to take any action that takes a long time; any significant 1056 * action should be posted to a handler. 1057 * 1058 * @param keyCode The keycode of the key that woke the device 1059 */ 1060 public void onWakeKeyWhenKeyguardShowing(int keyCode) { 1061 if (DEBUG) Log.d(TAG, "onWakeKeyWhenKeyguardShowing(" + keyCode + ")"); 1062 1063 // give the keyguard view manager a chance to adjust the state of the 1064 // keyguard based on the key that woke the device before poking 1065 // the wake lock 1066 wakeWhenReady(keyCode); 1067 } 1068 1069 /** 1070 * When a wake motion such as an external mouse movement is received when the screen 1071 * is off and the keyguard is showing, we need to decide whether to actually turn 1072 * on the screen, and if so, tell the keyguard to prepare itself and poke the wake 1073 * lock when it is ready. 1074 * 1075 * The 'Tq' suffix is per the documentation in {@link WindowManagerPolicy}. 1076 * Be sure not to take any action that takes a long time; any significant 1077 * action should be posted to a handler. 1078 */ 1079 public void onWakeMotionWhenKeyguardShowing() { 1080 if (DEBUG) Log.d(TAG, "onWakeMotionWhenKeyguardShowing()"); 1081 1082 // give the keyguard view manager a chance to adjust the state of the 1083 // keyguard based on the key that woke the device before poking 1084 // the wake lock 1085 wakeWhenReady(KeyEvent.KEYCODE_UNKNOWN); 1086 } 1087 1088 public void keyguardDone(boolean authenticated, boolean wakeup) { 1089 mKeyguardDonePending = false; 1090 synchronized (this) { 1091 EventLog.writeEvent(70000, 2); 1092 if (DEBUG) Log.d(TAG, "keyguardDone(" + authenticated + ")"); 1093 Message msg = mHandler.obtainMessage(KEYGUARD_DONE); 1094 msg.arg1 = wakeup ? 1 : 0; 1095 mHandler.sendMessage(msg); 1096 1097 if (authenticated) { 1098 mUpdateMonitor.clearFailedUnlockAttempts(); 1099 } 1100 1101 if (mExitSecureCallback != null) { 1102 try { 1103 mExitSecureCallback.onKeyguardExitResult(authenticated); 1104 } catch (RemoteException e) { 1105 Slog.w(TAG, "Failed to call onKeyguardExitResult(" + authenticated + ")", e); 1106 } 1107 1108 mExitSecureCallback = null; 1109 1110 if (authenticated) { 1111 // after succesfully exiting securely, no need to reshow 1112 // the keyguard when they've released the lock 1113 mExternallyEnabled = true; 1114 mNeedToReshowWhenReenabled = false; 1115 } 1116 } 1117 } 1118 } 1119 1120 /** 1121 * This handler will be associated with the policy thread, which will also 1122 * be the UI thread of the keyguard. Since the apis of the policy, and therefore 1123 * this class, can be called by other threads, any action that directly 1124 * interacts with the keyguard ui should be posted to this handler, rather 1125 * than called directly. 1126 */ 1127 private Handler mHandler = new Handler(Looper.myLooper(), null, true /*async*/) { 1128 @Override 1129 public void handleMessage(Message msg) { 1130 switch (msg.what) { 1131 case SHOW: 1132 handleShow((Bundle) msg.obj); 1133 return ; 1134 case HIDE: 1135 handleHide(); 1136 return ; 1137 case RESET: 1138 handleReset((Bundle) msg.obj); 1139 return ; 1140 case VERIFY_UNLOCK: 1141 handleVerifyUnlock(); 1142 return; 1143 case NOTIFY_SCREEN_OFF: 1144 handleNotifyScreenOff(); 1145 return; 1146 case NOTIFY_SCREEN_ON: 1147 handleNotifyScreenOn((IKeyguardShowCallback) msg.obj); 1148 return; 1149 case WAKE_WHEN_READY: 1150 handleWakeWhenReady(msg.arg1); 1151 return; 1152 case KEYGUARD_DONE: 1153 handleKeyguardDone(msg.arg1 != 0); 1154 return; 1155 case KEYGUARD_DONE_DRAWING: 1156 handleKeyguardDoneDrawing(); 1157 return; 1158 case KEYGUARD_DONE_AUTHENTICATING: 1159 keyguardDone(true, true); 1160 return; 1161 case SET_HIDDEN: 1162 handleSetHidden(msg.arg1 != 0); 1163 break; 1164 case KEYGUARD_TIMEOUT: 1165 synchronized (KeyguardViewMediator.this) { 1166 doKeyguardLocked((Bundle) msg.obj); 1167 } 1168 break; 1169 case SHOW_ASSISTANT: 1170 handleShowAssistant(); 1171 break; 1172 } 1173 } 1174 }; 1175 1176 /** 1177 * @see #keyguardDone 1178 * @see #KEYGUARD_DONE 1179 */ 1180 private void handleKeyguardDone(boolean wakeup) { 1181 if (DEBUG) Log.d(TAG, "handleKeyguardDone"); 1182 handleHide(); 1183 if (wakeup) { 1184 wakeUp(); 1185 } 1186 1187 sendUserPresentBroadcast(); 1188 } 1189 1190 private void sendUserPresentBroadcast() { 1191 // TODO 1192// if (!(mContext instanceof Activity)) { 1193// final UserHandle currentUser = new UserHandle(mLockPatternUtils.getCurrentUser()); 1194// mContext.sendBroadcastAsUser(mUserPresentIntent, currentUser); 1195// } 1196 } 1197 1198 /** 1199 * @see #keyguardDoneDrawing 1200 * @see #KEYGUARD_DONE_DRAWING 1201 */ 1202 private void handleKeyguardDoneDrawing() { 1203 synchronized(this) { 1204 if (DEBUG) Log.d(TAG, "handleKeyguardDoneDrawing"); 1205 if (mWaitingUntilKeyguardVisible) { 1206 if (DEBUG) Log.d(TAG, "handleKeyguardDoneDrawing: notifying mWaitingUntilKeyguardVisible"); 1207 mWaitingUntilKeyguardVisible = false; 1208 notifyAll(); 1209 1210 // there will usually be two of these sent, one as a timeout, and one 1211 // as a result of the callback, so remove any remaining messages from 1212 // the queue 1213 mHandler.removeMessages(KEYGUARD_DONE_DRAWING); 1214 } 1215 } 1216 } 1217 1218 private void playSounds(boolean locked) { 1219 // User feedback for keyguard. 1220 1221 if (mSuppressNextLockSound) { 1222 mSuppressNextLockSound = false; 1223 return; 1224 } 1225 1226 final ContentResolver cr = mContext.getContentResolver(); 1227 if (Settings.System.getInt(cr, Settings.System.LOCKSCREEN_SOUNDS_ENABLED, 1) == 1) { 1228 final int whichSound = locked 1229 ? mLockSoundId 1230 : mUnlockSoundId; 1231 mLockSounds.stop(mLockSoundStreamId); 1232 // Init mAudioManager 1233 if (mAudioManager == null) { 1234 mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 1235 if (mAudioManager == null) return; 1236 mMasterStreamType = mAudioManager.getMasterStreamType(); 1237 } 1238 // If the stream is muted, don't play the sound 1239 if (mAudioManager.isStreamMute(mMasterStreamType)) return; 1240 1241 mLockSoundStreamId = mLockSounds.play(whichSound, 1242 mLockSoundVolume, mLockSoundVolume, 1/*priortiy*/, 0/*loop*/, 1.0f/*rate*/); 1243 } 1244 } 1245 1246 private void updateActivityLockScreenState() { 1247 try { 1248 ActivityManagerNative.getDefault().setLockScreenShown( 1249 mShowing && !mHidden); 1250 } catch (RemoteException e) { 1251 } 1252 } 1253 1254 /** 1255 * Handle message sent by {@link #showLocked}. 1256 * @see #SHOW 1257 */ 1258 private void handleShow(Bundle options) { 1259 synchronized (KeyguardViewMediator.this) { 1260 if (!mSystemReady) { 1261 if (DEBUG) Log.d(TAG, "ignoring handleShow because system is not ready."); 1262 return; 1263 } else { 1264 if (DEBUG) Log.d(TAG, "handleShow"); 1265 } 1266 1267 mKeyguardViewManager.show(options); 1268 mShowing = true; 1269 mKeyguardDonePending = false; 1270 updateActivityLockScreenState(); 1271 adjustStatusBarLocked(); 1272 userActivity(); 1273 try { 1274 ActivityManagerNative.getDefault().closeSystemDialogs("lock"); 1275 } catch (RemoteException e) { 1276 } 1277 1278 // Do this at the end to not slow down display of the keyguard. 1279 playSounds(true); 1280 1281 mShowKeyguardWakeLock.release(); 1282 } 1283 } 1284 1285 /** 1286 * Handle message sent by {@link #hideLocked()} 1287 * @see #HIDE 1288 */ 1289 private void handleHide() { 1290 synchronized (KeyguardViewMediator.this) { 1291 if (DEBUG) Log.d(TAG, "handleHide"); 1292 if (mWakeAndHandOff.isHeld()) { 1293 Log.w(TAG, "attempt to hide the keyguard while waking, ignored"); 1294 return; 1295 } 1296 1297 // only play "unlock" noises if not on a call (since the incall UI 1298 // disables the keyguard) 1299 if (TelephonyManager.EXTRA_STATE_IDLE.equals(mPhoneState)) { 1300 playSounds(false); 1301 } 1302 1303 mKeyguardViewManager.hide(); 1304 mShowing = false; 1305 mKeyguardDonePending = false; 1306 updateActivityLockScreenState(); 1307 adjustStatusBarLocked(); 1308 } 1309 } 1310 1311 private void adjustStatusBarLocked() { 1312 if (mStatusBarManager == null) { 1313 mStatusBarManager = (StatusBarManager) 1314 mContext.getSystemService(Context.STATUS_BAR_SERVICE); 1315 } 1316 if (mStatusBarManager == null) { 1317 Log.w(TAG, "Could not get status bar manager"); 1318 } else { 1319 if (mShowLockIcon) { 1320 // Give feedback to user when secure keyguard is active and engaged 1321 if (mShowing && isSecure()) { 1322 if (!mShowingLockIcon) { 1323 String contentDescription = mContext.getString( 1324 com.android.internal.R.string.status_bar_device_locked); 1325 mStatusBarManager.setIcon("secure", 1326 com.android.internal.R.drawable.stat_sys_secure, 0, 1327 contentDescription); 1328 mShowingLockIcon = true; 1329 } 1330 } else { 1331 if (mShowingLockIcon) { 1332 mStatusBarManager.removeIcon("secure"); 1333 mShowingLockIcon = false; 1334 } 1335 } 1336 } 1337 1338 // Disable aspects of the system/status/navigation bars that must not be re-enabled by 1339 // windows that appear on top, ever 1340 int flags = StatusBarManager.DISABLE_NONE; 1341 if (mShowing) { 1342 // Permanently disable components not available when keyguard is enabled 1343 // (like recents). Temporary enable/disable (e.g. the "back" button) are 1344 // done in KeyguardHostView. 1345 flags |= StatusBarManager.DISABLE_RECENT; 1346 if (isSecure() || !ENABLE_INSECURE_STATUS_BAR_EXPAND) { 1347 // showing secure lockscreen; disable expanding. 1348 flags |= StatusBarManager.DISABLE_EXPAND; 1349 } 1350 if (isSecure()) { 1351 // showing secure lockscreen; disable ticker. 1352 flags |= StatusBarManager.DISABLE_NOTIFICATION_TICKER; 1353 } 1354 if (!isAssistantAvailable()) { 1355 flags |= StatusBarManager.DISABLE_SEARCH; 1356 } 1357 } 1358 1359 if (DEBUG) { 1360 Log.d(TAG, "adjustStatusBarLocked: mShowing=" + mShowing + " mHidden=" + mHidden 1361 + " isSecure=" + isSecure() + " --> flags=0x" + Integer.toHexString(flags)); 1362 } 1363 1364 if (!(mContext instanceof Activity)) { 1365 mStatusBarManager.disable(flags); 1366 } 1367 } 1368 } 1369 1370 /** 1371 * Handle message sent by {@link #wakeWhenReady(int)} 1372 * @param keyCode The key that woke the device. 1373 * @see #WAKE_WHEN_READY 1374 */ 1375 private void handleWakeWhenReady(int keyCode) { 1376 synchronized (KeyguardViewMediator.this) { 1377 if (DBG_WAKE) Log.d(TAG, "handleWakeWhenReady(" + keyCode + ")"); 1378 1379 // this should result in a call to 'poke wakelock' which will set a timeout 1380 // on releasing the wakelock 1381 if (!mKeyguardViewManager.wakeWhenReadyTq(keyCode)) { 1382 // poke wakelock ourselves if keyguard is no longer active 1383 Log.w(TAG, "mKeyguardViewManager.wakeWhenReadyTq did not poke wake lock, so poke it ourselves"); 1384 userActivity(); 1385 } 1386 1387 /** 1388 * Now that the keyguard is ready and has poked the wake lock, we can 1389 * release the handoff wakelock 1390 */ 1391 mWakeAndHandOff.release(); 1392 } 1393 } 1394 1395 /** 1396 * Handle message sent by {@link #resetStateLocked(Bundle)} 1397 * @see #RESET 1398 */ 1399 private void handleReset(Bundle options) { 1400 if (options == null) { 1401 options = new Bundle(); 1402 } 1403 options.putBoolean(KeyguardViewManager.IS_SWITCHING_USER, mSwitchingUser); 1404 synchronized (KeyguardViewMediator.this) { 1405 if (DEBUG) Log.d(TAG, "handleReset"); 1406 mKeyguardViewManager.reset(options); 1407 } 1408 } 1409 1410 /** 1411 * Handle message sent by {@link #verifyUnlock} 1412 * @see #VERIFY_UNLOCK 1413 */ 1414 private void handleVerifyUnlock() { 1415 synchronized (KeyguardViewMediator.this) { 1416 if (DEBUG) Log.d(TAG, "handleVerifyUnlock"); 1417 mKeyguardViewManager.verifyUnlock(); 1418 mShowing = true; 1419 updateActivityLockScreenState(); 1420 } 1421 } 1422 1423 /** 1424 * Handle message sent by {@link #notifyScreenOffLocked()} 1425 * @see #NOTIFY_SCREEN_OFF 1426 */ 1427 private void handleNotifyScreenOff() { 1428 synchronized (KeyguardViewMediator.this) { 1429 if (DEBUG) Log.d(TAG, "handleNotifyScreenOff"); 1430 mKeyguardViewManager.onScreenTurnedOff(); 1431 } 1432 } 1433 1434 /** 1435 * Handle message sent by {@link #notifyScreenOnLocked()} 1436 * @see #NOTIFY_SCREEN_ON 1437 */ 1438 private void handleNotifyScreenOn(IKeyguardShowCallback callback) { 1439 synchronized (KeyguardViewMediator.this) { 1440 if (DEBUG) Log.d(TAG, "handleNotifyScreenOn"); 1441 mKeyguardViewManager.onScreenTurnedOn(callback); 1442 } 1443 } 1444 1445 public boolean isDismissable() { 1446 return mKeyguardDonePending || !isSecure(); 1447 } 1448 1449 public void showAssistant() { 1450 Message msg = mHandler.obtainMessage(SHOW_ASSISTANT); 1451 mHandler.sendMessage(msg); 1452 } 1453 1454 public void handleShowAssistant() { 1455 mKeyguardViewManager.showAssistant(); 1456 } 1457 1458 private boolean isAssistantAvailable() { 1459 return mSearchManager != null 1460 && mSearchManager.getAssistIntent(mContext, false, UserHandle.USER_CURRENT) != null; 1461 } 1462} 1463