KeyguardViewMediator.java revision f6d0fc190c4b257ee4f2f1ae8a59519d3a21ce6d
1/* 2 * Copyright (C) 2007 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.internal.policy.impl.keyguard; 18 19import static android.provider.Settings.System.SCREEN_OFF_TIMEOUT; 20 21import android.app.Activity; 22import android.app.ActivityManagerNative; 23import android.app.AlarmManager; 24import android.app.PendingIntent; 25import android.app.StatusBarManager; 26import android.content.BroadcastReceiver; 27import android.content.ContentResolver; 28import android.content.Context; 29import android.content.Intent; 30import android.content.IntentFilter; 31import android.media.AudioManager; 32import android.media.SoundPool; 33import android.os.Bundle; 34import android.os.Handler; 35import android.os.Looper; 36import android.os.Message; 37import android.os.PowerManager; 38import android.os.RemoteException; 39import android.os.SystemClock; 40import android.os.SystemProperties; 41import android.os.UserHandle; 42import android.os.UserManager; 43import android.provider.Settings; 44import android.telephony.TelephonyManager; 45import android.util.EventLog; 46import android.util.Log; 47import android.view.KeyEvent; 48import android.view.WindowManager; 49import android.view.WindowManagerGlobal; 50import android.view.WindowManagerPolicy; 51 52import com.android.internal.telephony.IccCardConstants; 53import com.android.internal.widget.LockPatternUtils; 54 55 56/** 57 * Mediates requests related to the keyguard. This includes queries about the 58 * state of the keyguard, power management events that effect whether the keyguard 59 * should be shown or reset, callbacks to the phone window manager to notify 60 * it of when the keyguard is showing, and events from the keyguard view itself 61 * stating that the keyguard was succesfully unlocked. 62 * 63 * Note that the keyguard view is shown when the screen is off (as appropriate) 64 * so that once the screen comes on, it will be ready immediately. 65 * 66 * Example queries about the keyguard: 67 * - is {movement, key} one that should wake the keygaurd? 68 * - is the keyguard showing? 69 * - are input events restricted due to the state of the keyguard? 70 * 71 * Callbacks to the phone window manager: 72 * - the keyguard is showing 73 * 74 * Example external events that translate to keyguard view changes: 75 * - screen turned off -> reset the keyguard, and show it so it will be ready 76 * next time the screen turns on 77 * - keyboard is slid open -> if the keyguard is not secure, hide it 78 * 79 * Events from the keyguard view: 80 * - user succesfully unlocked keyguard -> hide keyguard view, and no longer 81 * restrict input events. 82 * 83 * Note: in addition to normal power managment events that effect the state of 84 * whether the keyguard should be showing, external apps and services may request 85 * that the keyguard be disabled via {@link #setKeyguardEnabled(boolean)}. When 86 * false, this will override all other conditions for turning on the keyguard. 87 * 88 * Threading and synchronization: 89 * This class is created by the initialization routine of the {@link WindowManagerPolicy}, 90 * and runs on its thread. The keyguard UI is created from that thread in the 91 * constructor of this class. The apis may be called from other threads, including the 92 * {@link com.android.server.input.InputManagerService}'s and {@link android.view.WindowManager}'s. 93 * Therefore, methods on this class are synchronized, and any action that is pointed 94 * directly to the keyguard UI is posted to a {@link Handler} to ensure it is taken on the UI 95 * thread of the keyguard. 96 */ 97public class KeyguardViewMediator { 98 private static final int KEYGUARD_DISPLAY_TIMEOUT_DELAY_DEFAULT = 30000; 99 private final static boolean DEBUG = false; 100 private final static boolean DBG_WAKE = false; 101 102 private final static String TAG = "KeyguardViewMediator"; 103 104 private static final String DELAYED_KEYGUARD_ACTION = 105 "com.android.internal.policy.impl.PhoneWindowManager.DELAYED_KEYGUARD"; 106 107 // used for handler messages 108 private static final int SHOW = 2; 109 private static final int HIDE = 3; 110 private static final int RESET = 4; 111 private static final int VERIFY_UNLOCK = 5; 112 private static final int NOTIFY_SCREEN_OFF = 6; 113 private static final int NOTIFY_SCREEN_ON = 7; 114 private static final int WAKE_WHEN_READY = 8; 115 private static final int KEYGUARD_DONE = 9; 116 private static final int KEYGUARD_DONE_DRAWING = 10; 117 private static final int KEYGUARD_DONE_AUTHENTICATING = 11; 118 private static final int SET_HIDDEN = 12; 119 private static final int KEYGUARD_TIMEOUT = 13; 120 121 /** 122 * The default amount of time we stay awake (used for all key input) 123 */ 124 protected static final int AWAKE_INTERVAL_DEFAULT_MS = 10000; 125 126 /** 127 * How long to wait after the screen turns off due to timeout before 128 * turning on the keyguard (i.e, the user has this much time to turn 129 * the screen back on without having to face the keyguard). 130 */ 131 private static final int KEYGUARD_LOCK_AFTER_DELAY_DEFAULT = 5000; 132 133 /** 134 * How long we'll wait for the {@link ViewMediatorCallback#keyguardDoneDrawing()} 135 * callback before unblocking a call to {@link #setKeyguardEnabled(boolean)} 136 * that is reenabling the keyguard. 137 */ 138 private static final int KEYGUARD_DONE_DRAWING_TIMEOUT_MS = 2000; 139 140 /** 141 * Allow the user to expand the status bar when the keyguard is engaged 142 * (without a pattern or password). 143 */ 144 private static final boolean ENABLE_INSECURE_STATUS_BAR_EXPAND = true; 145 146 /** The stream type that the lock sounds are tied to. */ 147 private int mMasterStreamType; 148 149 private Context mContext; 150 private AlarmManager mAlarmManager; 151 private AudioManager mAudioManager; 152 private StatusBarManager mStatusBarManager; 153 private boolean mShowLockIcon; 154 private boolean mShowingLockIcon; 155 156 private boolean mSystemReady; 157 158 // Whether the next call to playSounds() should be skipped. Defaults to 159 // true because the first lock (on boot) should be silent. 160 private boolean mSuppressNextLockSound = true; 161 162 163 /** High level access to the power manager for WakeLocks */ 164 private PowerManager mPM; 165 166 /** UserManager for querying number of users */ 167 private UserManager mUserManager; 168 169 /** 170 * Used to keep the device awake while to ensure the keyguard finishes opening before 171 * we sleep. 172 */ 173 private PowerManager.WakeLock mShowKeyguardWakeLock; 174 175 /** 176 * Does not turn on screen, held while a call to {@link KeyguardViewManager#wakeWhenReadyTq(int)} 177 * is called to make sure the device doesn't sleep before it has a chance to poke 178 * the wake lock. 179 * @see #wakeWhenReadyLocked(int) 180 */ 181 private PowerManager.WakeLock mWakeAndHandOff; 182 183 private KeyguardViewManager mKeyguardViewManager; 184 185 // these are protected by synchronized (this) 186 187 /** 188 * External apps (like the phone app) can tell us to disable the keygaurd. 189 */ 190 private boolean mExternallyEnabled = true; 191 192 /** 193 * Remember if an external call to {@link #setKeyguardEnabled} with value 194 * false caused us to hide the keyguard, so that we need to reshow it once 195 * the keygaurd is reenabled with another call with value true. 196 */ 197 private boolean mNeedToReshowWhenReenabled = false; 198 199 // cached value of whether we are showing (need to know this to quickly 200 // answer whether the input should be restricted) 201 private boolean mShowing = false; 202 203 // true if the keyguard is hidden by another window 204 private boolean mHidden = false; 205 206 /** 207 * Helps remember whether the screen has turned on since the last time 208 * it turned off due to timeout. see {@link #onScreenTurnedOff(int)} 209 */ 210 private int mDelayedShowingSequence; 211 212 /** 213 * If the user has disabled the keyguard, then requests to exit, this is 214 * how we'll ultimately let them know whether it was successful. We use this 215 * var being non-null as an indicator that there is an in progress request. 216 */ 217 private WindowManagerPolicy.OnKeyguardExitResult mExitSecureCallback; 218 219 // the properties of the keyguard 220 221 private KeyguardUpdateMonitor mUpdateMonitor; 222 223 private boolean mScreenOn; 224 225 // last known state of the cellular connection 226 private String mPhoneState = TelephonyManager.EXTRA_STATE_IDLE; 227 228 /** 229 * we send this intent when the keyguard is dismissed. 230 */ 231 private Intent mUserPresentIntent; 232 233 /** 234 * {@link #setKeyguardEnabled} waits on this condition when it reenables 235 * the keyguard. 236 */ 237 private boolean mWaitingUntilKeyguardVisible = false; 238 private LockPatternUtils mLockPatternUtils; 239 240 private SoundPool mLockSounds; 241 private int mLockSoundId; 242 private int mUnlockSoundId; 243 private int mLockSoundStreamId; 244 245 /** 246 * The volume applied to the lock/unlock sounds. 247 */ 248 private final float mLockSoundVolume; 249 250 /** 251 * The callback used by the keyguard view to tell the {@link KeyguardViewMediator} 252 * various things. 253 */ 254 public interface ViewMediatorCallback { 255 256 /** 257 * Wake the device immediately. 258 */ 259 void wakeUp(); 260 261 /** 262 * Reports user activity and requests that the screen stay on. 263 */ 264 void userActivity(); 265 266 /** 267 * Reports user activity and requests that the screen stay on for at least 268 * the specified amount of time. 269 * @param millis The amount of time in millis. This value is currently ignored. 270 */ 271 void userActivity(long millis); 272 273 /** 274 * Report that the keyguard is done. 275 * @param authenticated Whether the user securely got past the keyguard. 276 * the only reason for this to be false is if the keyguard was instructed 277 * to appear temporarily to verify the user is supposed to get past the 278 * keyguard, and the user fails to do so. 279 */ 280 void keyguardDone(boolean authenticated); 281 282 /** 283 * Report that the keyguard is done drawing. 284 */ 285 void keyguardDoneDrawing(); 286 287 /** 288 * Tell ViewMediator that the current view needs IME input 289 * @param needsInput 290 */ 291 void setNeedsInput(boolean needsInput); 292 293 /** 294 * Tell view mediator that the keyguard view's desired user activity timeout 295 * has changed and needs to be reapplied to the window. 296 */ 297 void onUserActivityTimeoutChanged(); 298 } 299 300 KeyguardUpdateMonitorCallback mUpdateCallback = new KeyguardUpdateMonitorCallback() { 301 302 @Override 303 public void onUserSwitched(int userId) { 304 // Note that the mLockPatternUtils user has already been updated from setCurrentUser. 305 // We need to force a reset of the views, since lockNow (called by 306 // ActivityManagerService) will not reconstruct the keyguard if it is already showing. 307 synchronized (KeyguardViewMediator.this) { 308 Bundle options = new Bundle(); 309 options.putBoolean(LockPatternUtils.KEYGUARD_SHOW_USER_SWITCHER, true); 310 options.putBoolean(LockPatternUtils.KEYGUARD_SHOW_SECURITY_CHALLENGE, true); 311 resetStateLocked(options); 312 adjustStatusBarLocked(); 313 // Disable face unlock when the user switches. 314 KeyguardUpdateMonitor.getInstance(mContext).setAlternateUnlockEnabled(false); 315 } 316 } 317 318 @Override 319 public void onUserRemoved(int userId) { 320 mLockPatternUtils.removeUser(userId); 321 } 322 323 @Override 324 void onPhoneStateChanged(int phoneState) { 325 synchronized (KeyguardViewMediator.this) { 326 if (TelephonyManager.CALL_STATE_IDLE == phoneState // call ending 327 && !mScreenOn // screen off 328 && mExternallyEnabled) { // not disabled by any app 329 330 // note: this is a way to gracefully reenable the keyguard when the call 331 // ends and the screen is off without always reenabling the keyguard 332 // each time the screen turns off while in call (and having an occasional ugly 333 // flicker while turning back on the screen and disabling the keyguard again). 334 if (DEBUG) Log.d(TAG, "screen is off and call ended, let's make sure the " 335 + "keyguard is showing"); 336 doKeyguardLocked(); 337 } 338 } 339 }; 340 341 @Override 342 public void onClockVisibilityChanged() { 343 adjustStatusBarLocked(); 344 } 345 346 @Override 347 public void onDeviceProvisioned() { 348 sendUserPresentBroadcast(); 349 } 350 351 @Override 352 public void onSimStateChanged(IccCardConstants.State simState) { 353 if (DEBUG) Log.d(TAG, "onSimStateChanged: " + simState); 354 355 switch (simState) { 356 case NOT_READY: 357 case ABSENT: 358 // only force lock screen in case of missing sim if user hasn't 359 // gone through setup wizard 360 synchronized (this) { 361 if (!mUpdateMonitor.isDeviceProvisioned()) { 362 if (!isShowing()) { 363 if (DEBUG) Log.d(TAG, "ICC_ABSENT isn't showing," 364 + " we need to show the keyguard since the " 365 + "device isn't provisioned yet."); 366 doKeyguardLocked(); 367 } else { 368 resetStateLocked(null); 369 } 370 } 371 } 372 break; 373 case PIN_REQUIRED: 374 case PUK_REQUIRED: 375 synchronized (this) { 376 if (!isShowing()) { 377 if (DEBUG) Log.d(TAG, "INTENT_VALUE_ICC_LOCKED and keygaurd isn't " 378 + "showing; need to show keyguard so user can enter sim pin"); 379 doKeyguardLocked(); 380 } else { 381 resetStateLocked(null); 382 } 383 } 384 break; 385 case PERM_DISABLED: 386 synchronized (this) { 387 if (!isShowing()) { 388 if (DEBUG) Log.d(TAG, "PERM_DISABLED and " 389 + "keygaurd isn't showing."); 390 doKeyguardLocked(); 391 } else { 392 if (DEBUG) Log.d(TAG, "PERM_DISABLED, resetStateLocked to" 393 + "show permanently disabled message in lockscreen."); 394 resetStateLocked(null); 395 } 396 } 397 break; 398 case READY: 399 synchronized (this) { 400 if (isShowing()) { 401 resetStateLocked(null); 402 } 403 } 404 break; 405 } 406 } 407 408 }; 409 410 ViewMediatorCallback mViewMediatorCallback = new ViewMediatorCallback() { 411 public void wakeUp() { 412 KeyguardViewMediator.this.wakeUp(); 413 } 414 415 public void userActivity() { 416 KeyguardViewMediator.this.userActivity(); 417 } 418 419 public void userActivity(long holdMs) { 420 KeyguardViewMediator.this.userActivity(holdMs); 421 } 422 423 public void keyguardDone(boolean authenticated) { 424 KeyguardViewMediator.this.keyguardDone(authenticated, true); 425 } 426 427 public void keyguardDoneDrawing() { 428 mHandler.sendEmptyMessage(KEYGUARD_DONE_DRAWING); 429 } 430 431 @Override 432 public void setNeedsInput(boolean needsInput) { 433 mKeyguardViewManager.setNeedsInput(needsInput); 434 } 435 436 @Override 437 public void onUserActivityTimeoutChanged() { 438 mKeyguardViewManager.updateUserActivityTimeout(); 439 } 440 }; 441 442 public void wakeUp() { 443 mPM.wakeUp(SystemClock.uptimeMillis()); 444 } 445 446 public void userActivity() { 447 userActivity(AWAKE_INTERVAL_DEFAULT_MS); 448 } 449 450 public void userActivity(long holdMs) { 451 // We ignore the hold time. Eventually we should remove it. 452 // Instead, the keyguard window has an explicit user activity timeout set on it. 453 mPM.userActivity(SystemClock.uptimeMillis(), false); 454 } 455 456 /** 457 * Construct a KeyguardViewMediator 458 * @param context 459 * @param lockPatternUtils optional mock interface for LockPatternUtils 460 */ 461 public KeyguardViewMediator(Context context, LockPatternUtils lockPatternUtils) { 462 mContext = context; 463 mPM = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 464 mUserManager = (UserManager) mContext.getSystemService(Context.USER_SERVICE); 465 mShowKeyguardWakeLock = mPM.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "show keyguard"); 466 mShowKeyguardWakeLock.setReferenceCounted(false); 467 468 mWakeAndHandOff = mPM.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "keyguardWakeAndHandOff"); 469 mWakeAndHandOff.setReferenceCounted(false); 470 471 mContext.registerReceiver(mBroadcastReceiver, new IntentFilter(DELAYED_KEYGUARD_ACTION)); 472 473 mAlarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 474 475 mUpdateMonitor = KeyguardUpdateMonitor.getInstance(context); 476 477 mLockPatternUtils = lockPatternUtils != null 478 ? lockPatternUtils : new LockPatternUtils(mContext); 479 mLockPatternUtils.setCurrentUser(UserHandle.USER_OWNER); 480 481 WindowManager wm = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE); 482 483 mKeyguardViewManager = new KeyguardViewManager(context, wm, mViewMediatorCallback, 484 mLockPatternUtils); 485 486 mUserPresentIntent = new Intent(Intent.ACTION_USER_PRESENT); 487 mUserPresentIntent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING 488 | Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 489 490 final ContentResolver cr = mContext.getContentResolver(); 491 mShowLockIcon = (Settings.System.getInt(cr, "show_status_bar_lock", 0) == 1); 492 493 mScreenOn = mPM.isScreenOn(); 494 495 mLockSounds = new SoundPool(1, AudioManager.STREAM_SYSTEM, 0); 496 String soundPath = Settings.Global.getString(cr, Settings.Global.LOCK_SOUND); 497 if (soundPath != null) { 498 mLockSoundId = mLockSounds.load(soundPath, 1); 499 } 500 if (soundPath == null || mLockSoundId == 0) { 501 Log.w(TAG, "failed to load lock sound from " + soundPath); 502 } 503 soundPath = Settings.Global.getString(cr, Settings.Global.UNLOCK_SOUND); 504 if (soundPath != null) { 505 mUnlockSoundId = mLockSounds.load(soundPath, 1); 506 } 507 if (soundPath == null || mUnlockSoundId == 0) { 508 Log.w(TAG, "failed to load unlock sound from " + soundPath); 509 } 510 int lockSoundDefaultAttenuation = context.getResources().getInteger( 511 com.android.internal.R.integer.config_lockSoundVolumeDb); 512 mLockSoundVolume = (float)Math.pow(10, (float)lockSoundDefaultAttenuation/20); 513 } 514 515 /** 516 * Let us know that the system is ready after startup. 517 */ 518 public void onSystemReady() { 519 synchronized (this) { 520 if (DEBUG) Log.d(TAG, "onSystemReady"); 521 mSystemReady = true; 522 mUpdateMonitor.registerCallback(mUpdateCallback); 523 524 // Disable alternate unlock right after boot until things have settled. 525 mUpdateMonitor.setAlternateUnlockEnabled(false); 526 mUpdateMonitor.setIsFirstBoot(true); 527 528 doKeyguardLocked(); 529 } 530 // Most services aren't available until the system reaches the ready state, so we 531 // send it here when the device first boots. 532 maybeSendUserPresentBroadcast(); 533 } 534 535 /** 536 * Called to let us know the screen was turned off. 537 * @param why either {@link WindowManagerPolicy#OFF_BECAUSE_OF_USER}, 538 * {@link WindowManagerPolicy#OFF_BECAUSE_OF_TIMEOUT} or 539 * {@link WindowManagerPolicy#OFF_BECAUSE_OF_PROX_SENSOR}. 540 */ 541 public void onScreenTurnedOff(int why) { 542 synchronized (this) { 543 mScreenOn = false; 544 if (DEBUG) Log.d(TAG, "onScreenTurnedOff(" + why + ")"); 545 546 // Lock immediately based on setting if secure (user has a pin/pattern/password). 547 // This also "locks" the device when not secure to provide easy access to the 548 // camera while preventing unwanted input. 549 final boolean lockImmediately = 550 mLockPatternUtils.getPowerButtonInstantlyLocks() || !mLockPatternUtils.isSecure(); 551 552 if (mExitSecureCallback != null) { 553 if (DEBUG) Log.d(TAG, "pending exit secure callback cancelled"); 554 mExitSecureCallback.onKeyguardExitResult(false); 555 mExitSecureCallback = null; 556 if (!mExternallyEnabled) { 557 hideLocked(); 558 } 559 } else if (mShowing) { 560 notifyScreenOffLocked(); 561 resetStateLocked(null); 562 } else if (why == WindowManagerPolicy.OFF_BECAUSE_OF_TIMEOUT 563 || (why == WindowManagerPolicy.OFF_BECAUSE_OF_USER && !lockImmediately)) { 564 doKeyguardLaterLocked(); 565 } else if (why == WindowManagerPolicy.OFF_BECAUSE_OF_PROX_SENSOR) { 566 // Do not enable the keyguard if the prox sensor forced the screen off. 567 } else { 568 doKeyguardLocked(); 569 } 570 } 571 } 572 573 private void doKeyguardLaterLocked() { 574 // if the screen turned off because of timeout or the user hit the power button 575 // and we don't need to lock immediately, set an alarm 576 // to enable it a little bit later (i.e, give the user a chance 577 // to turn the screen back on within a certain window without 578 // having to unlock the screen) 579 final ContentResolver cr = mContext.getContentResolver(); 580 581 // From DisplaySettings 582 long displayTimeout = Settings.System.getInt(cr, SCREEN_OFF_TIMEOUT, 583 KEYGUARD_DISPLAY_TIMEOUT_DELAY_DEFAULT); 584 585 // From SecuritySettings 586 final long lockAfterTimeout = Settings.Secure.getInt(cr, 587 Settings.Secure.LOCK_SCREEN_LOCK_AFTER_TIMEOUT, 588 KEYGUARD_LOCK_AFTER_DELAY_DEFAULT); 589 590 // From DevicePolicyAdmin 591 final long policyTimeout = mLockPatternUtils.getDevicePolicyManager() 592 .getMaximumTimeToLock(null, mLockPatternUtils.getCurrentUser()); 593 594 long timeout; 595 if (policyTimeout > 0) { 596 // policy in effect. Make sure we don't go beyond policy limit. 597 displayTimeout = Math.max(displayTimeout, 0); // ignore negative values 598 timeout = Math.min(policyTimeout - displayTimeout, lockAfterTimeout); 599 } else { 600 timeout = lockAfterTimeout; 601 } 602 603 if (timeout <= 0) { 604 // Lock now 605 mSuppressNextLockSound = true; 606 doKeyguardLocked(); 607 } else { 608 // Lock in the future 609 long when = SystemClock.elapsedRealtime() + timeout; 610 Intent intent = new Intent(DELAYED_KEYGUARD_ACTION); 611 intent.putExtra("seq", mDelayedShowingSequence); 612 PendingIntent sender = PendingIntent.getBroadcast(mContext, 613 0, intent, PendingIntent.FLAG_CANCEL_CURRENT); 614 mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, when, sender); 615 if (DEBUG) Log.d(TAG, "setting alarm to turn off keyguard, seq = " 616 + mDelayedShowingSequence); 617 } 618 } 619 620 private void cancelDoKeyguardLaterLocked() { 621 mDelayedShowingSequence++; 622 } 623 624 /** 625 * Let's us know the screen was turned on. 626 */ 627 public void onScreenTurnedOn(KeyguardViewManager.ShowListener showListener) { 628 synchronized (this) { 629 mScreenOn = true; 630 cancelDoKeyguardLaterLocked(); 631 if (DEBUG) Log.d(TAG, "onScreenTurnedOn, seq = " + mDelayedShowingSequence); 632 if (showListener != null) { 633 notifyScreenOnLocked(showListener); 634 } 635 } 636 maybeSendUserPresentBroadcast(); 637 } 638 639 private void maybeSendUserPresentBroadcast() { 640 if (mSystemReady && mLockPatternUtils.isLockScreenDisabled() 641 && mUserManager.getUsers(true).size() == 1) { 642 // Lock screen is disabled because the user has set the preference to "None". 643 // In this case, send out ACTION_USER_PRESENT here instead of in 644 // handleKeyguardDone() 645 sendUserPresentBroadcast(); 646 } 647 } 648 649 /** 650 * A dream started. We should lock after the usual screen-off lock timeout but only 651 * if there is a secure lock pattern. 652 */ 653 public void onDreamingStarted() { 654 synchronized (this) { 655 if (mScreenOn && mLockPatternUtils.isSecure()) { 656 doKeyguardLaterLocked(); 657 } 658 } 659 } 660 661 /** 662 * A dream stopped. 663 */ 664 public void onDreamingStopped() { 665 synchronized (this) { 666 if (mScreenOn) { 667 cancelDoKeyguardLaterLocked(); 668 } 669 } 670 } 671 672 /** 673 * Same semantics as {@link WindowManagerPolicy#enableKeyguard}; provide 674 * a way for external stuff to override normal keyguard behavior. For instance 675 * the phone app disables the keyguard when it receives incoming calls. 676 */ 677 public void setKeyguardEnabled(boolean enabled) { 678 synchronized (this) { 679 if (DEBUG) Log.d(TAG, "setKeyguardEnabled(" + enabled + ")"); 680 681 mExternallyEnabled = enabled; 682 683 if (!enabled && mShowing) { 684 if (mExitSecureCallback != null) { 685 if (DEBUG) Log.d(TAG, "in process of verifyUnlock request, ignoring"); 686 // we're in the process of handling a request to verify the user 687 // can get past the keyguard. ignore extraneous requests to disable / reenable 688 return; 689 } 690 691 // hiding keyguard that is showing, remember to reshow later 692 if (DEBUG) Log.d(TAG, "remembering to reshow, hiding keyguard, " 693 + "disabling status bar expansion"); 694 mNeedToReshowWhenReenabled = true; 695 hideLocked(); 696 } else if (enabled && mNeedToReshowWhenReenabled) { 697 // reenabled after previously hidden, reshow 698 if (DEBUG) Log.d(TAG, "previously hidden, reshowing, reenabling " 699 + "status bar expansion"); 700 mNeedToReshowWhenReenabled = false; 701 702 if (mExitSecureCallback != null) { 703 if (DEBUG) Log.d(TAG, "onKeyguardExitResult(false), resetting"); 704 mExitSecureCallback.onKeyguardExitResult(false); 705 mExitSecureCallback = null; 706 resetStateLocked(null); 707 } else { 708 showLocked(null); 709 710 // block until we know the keygaurd is done drawing (and post a message 711 // to unblock us after a timeout so we don't risk blocking too long 712 // and causing an ANR). 713 mWaitingUntilKeyguardVisible = true; 714 mHandler.sendEmptyMessageDelayed(KEYGUARD_DONE_DRAWING, KEYGUARD_DONE_DRAWING_TIMEOUT_MS); 715 if (DEBUG) Log.d(TAG, "waiting until mWaitingUntilKeyguardVisible is false"); 716 while (mWaitingUntilKeyguardVisible) { 717 try { 718 wait(); 719 } catch (InterruptedException e) { 720 Thread.currentThread().interrupt(); 721 } 722 } 723 if (DEBUG) Log.d(TAG, "done waiting for mWaitingUntilKeyguardVisible"); 724 } 725 } 726 } 727 } 728 729 /** 730 * @see android.app.KeyguardManager#exitKeyguardSecurely 731 */ 732 public void verifyUnlock(WindowManagerPolicy.OnKeyguardExitResult callback) { 733 synchronized (this) { 734 if (DEBUG) Log.d(TAG, "verifyUnlock"); 735 if (!mUpdateMonitor.isDeviceProvisioned()) { 736 // don't allow this api when the device isn't provisioned 737 if (DEBUG) Log.d(TAG, "ignoring because device isn't provisioned"); 738 callback.onKeyguardExitResult(false); 739 } else if (mExternallyEnabled) { 740 // this only applies when the user has externally disabled the 741 // keyguard. this is unexpected and means the user is not 742 // using the api properly. 743 Log.w(TAG, "verifyUnlock called when not externally disabled"); 744 callback.onKeyguardExitResult(false); 745 } else if (mExitSecureCallback != null) { 746 // already in progress with someone else 747 callback.onKeyguardExitResult(false); 748 } else { 749 mExitSecureCallback = callback; 750 verifyUnlockLocked(); 751 } 752 } 753 } 754 755 /** 756 * Is the keyguard currently showing? 757 */ 758 public boolean isShowing() { 759 return mShowing; 760 } 761 762 /** 763 * Is the keyguard currently showing and not being force hidden? 764 */ 765 public boolean isShowingAndNotHidden() { 766 return mShowing && !mHidden; 767 } 768 769 /** 770 * Notify us when the keyguard is hidden by another window 771 */ 772 public void setHidden(boolean isHidden) { 773 if (DEBUG) Log.d(TAG, "setHidden " + isHidden); 774 mUpdateMonitor.sendKeyguardVisibilityChanged(!isHidden); 775 mHandler.removeMessages(SET_HIDDEN); 776 Message msg = mHandler.obtainMessage(SET_HIDDEN, (isHidden ? 1 : 0), 0); 777 mHandler.sendMessage(msg); 778 } 779 780 /** 781 * Handles SET_HIDDEN message sent by setHidden() 782 */ 783 private void handleSetHidden(boolean isHidden) { 784 synchronized (KeyguardViewMediator.this) { 785 if (mHidden != isHidden) { 786 mHidden = isHidden; 787 updateActivityLockScreenState(); 788 adjustStatusBarLocked(); 789 } 790 } 791 } 792 793 /** 794 * Used by PhoneWindowManager to enable the keyguard due to a user activity timeout. 795 * This must be safe to call from any thread and with any window manager locks held. 796 */ 797 public void doKeyguardTimeout(Bundle options) { 798 mHandler.removeMessages(KEYGUARD_TIMEOUT); 799 Message msg = mHandler.obtainMessage(KEYGUARD_TIMEOUT, options); 800 mHandler.sendMessage(msg); 801 } 802 803 /** 804 * Given the state of the keyguard, is the input restricted? 805 * Input is restricted when the keyguard is showing, or when the keyguard 806 * was suppressed by an app that disabled the keyguard or we haven't been provisioned yet. 807 */ 808 public boolean isInputRestricted() { 809 return mShowing || mNeedToReshowWhenReenabled || !mUpdateMonitor.isDeviceProvisioned(); 810 } 811 812 private void doKeyguardLocked() { 813 doKeyguardLocked(null); 814 } 815 816 /** 817 * Enable the keyguard if the settings are appropriate. Return true if all 818 * work that will happen is done; returns false if the caller can wait for 819 * the keyguard to be shown. 820 */ 821 private void doKeyguardLocked(Bundle options) { 822 // if another app is disabling us, don't show 823 if (!mExternallyEnabled) { 824 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because externally disabled"); 825 826 // note: we *should* set mNeedToReshowWhenReenabled=true here, but that makes 827 // for an occasional ugly flicker in this situation: 828 // 1) receive a call with the screen on (no keyguard) or make a call 829 // 2) screen times out 830 // 3) user hits key to turn screen back on 831 // instead, we reenable the keyguard when we know the screen is off and the call 832 // ends (see the broadcast receiver below) 833 // TODO: clean this up when we have better support at the window manager level 834 // for apps that wish to be on top of the keyguard 835 return; 836 } 837 838 // if the keyguard is already showing, don't bother 839 if (mKeyguardViewManager.isShowing()) { 840 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because it is already showing"); 841 return; 842 } 843 844 // if the setup wizard hasn't run yet, don't show 845 final boolean requireSim = !SystemProperties.getBoolean("keyguard.no_require_sim", 846 false); 847 final boolean provisioned = mUpdateMonitor.isDeviceProvisioned(); 848 final IccCardConstants.State state = mUpdateMonitor.getSimState(); 849 final boolean lockedOrMissing = state.isPinLocked() 850 || ((state == IccCardConstants.State.ABSENT 851 || state == IccCardConstants.State.PERM_DISABLED) 852 && requireSim); 853 854 if (!lockedOrMissing && !provisioned) { 855 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because device isn't provisioned" 856 + " and the sim is not locked or missing"); 857 return; 858 } 859 860 if (mUserManager.getUsers(true).size() < 2 861 && mLockPatternUtils.isLockScreenDisabled() && !lockedOrMissing) { 862 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because lockscreen is off"); 863 return; 864 } 865 866 if (DEBUG) Log.d(TAG, "doKeyguard: showing the lock screen"); 867 showLocked(options); 868 } 869 870 /** 871 * Send message to keyguard telling it to reset its state. 872 * @param options options about how to show the keyguard 873 * @see #handleReset() 874 */ 875 private void resetStateLocked(Bundle options) { 876 if (DEBUG) Log.d(TAG, "resetStateLocked"); 877 Message msg = mHandler.obtainMessage(RESET, options); 878 mHandler.sendMessage(msg); 879 } 880 881 /** 882 * Send message to keyguard telling it to verify unlock 883 * @see #handleVerifyUnlock() 884 */ 885 private void verifyUnlockLocked() { 886 if (DEBUG) Log.d(TAG, "verifyUnlockLocked"); 887 mHandler.sendEmptyMessage(VERIFY_UNLOCK); 888 } 889 890 891 /** 892 * Send a message to keyguard telling it the screen just turned on. 893 * @see #onScreenTurnedOff(int) 894 * @see #handleNotifyScreenOff 895 */ 896 private void notifyScreenOffLocked() { 897 if (DEBUG) Log.d(TAG, "notifyScreenOffLocked"); 898 mHandler.sendEmptyMessage(NOTIFY_SCREEN_OFF); 899 } 900 901 /** 902 * Send a message to keyguard telling it the screen just turned on. 903 * @see #onScreenTurnedOn() 904 * @see #handleNotifyScreenOn 905 */ 906 private void notifyScreenOnLocked(KeyguardViewManager.ShowListener showListener) { 907 if (DEBUG) Log.d(TAG, "notifyScreenOnLocked"); 908 Message msg = mHandler.obtainMessage(NOTIFY_SCREEN_ON, showListener); 909 mHandler.sendMessage(msg); 910 } 911 912 /** 913 * Send message to keyguard telling it about a wake key so it can adjust 914 * its state accordingly and then poke the wake lock when it is ready. 915 * @param keyCode The wake key. 916 * @see #handleWakeWhenReady 917 * @see #onWakeKeyWhenKeyguardShowingTq(int) 918 */ 919 private void wakeWhenReadyLocked(int keyCode) { 920 if (DBG_WAKE) Log.d(TAG, "wakeWhenReadyLocked(" + keyCode + ")"); 921 922 /** 923 * acquire the handoff lock that will keep the cpu running. this will 924 * be released once the keyguard has set itself up and poked the other wakelock 925 * in {@link #handleWakeWhenReady(int)} 926 */ 927 mWakeAndHandOff.acquire(); 928 929 Message msg = mHandler.obtainMessage(WAKE_WHEN_READY, keyCode, 0); 930 mHandler.sendMessage(msg); 931 } 932 933 /** 934 * Send message to keyguard telling it to show itself 935 * @see #handleShow() 936 */ 937 private void showLocked(Bundle options) { 938 if (DEBUG) Log.d(TAG, "showLocked"); 939 // ensure we stay awake until we are finished displaying the keyguard 940 mShowKeyguardWakeLock.acquire(); 941 Message msg = mHandler.obtainMessage(SHOW, options); 942 mHandler.sendMessage(msg); 943 } 944 945 /** 946 * Send message to keyguard telling it to hide itself 947 * @see #handleHide() 948 */ 949 private void hideLocked() { 950 if (DEBUG) Log.d(TAG, "hideLocked"); 951 Message msg = mHandler.obtainMessage(HIDE); 952 mHandler.sendMessage(msg); 953 } 954 955 public boolean isSecure() { 956 return mLockPatternUtils.isSecure() 957 || KeyguardUpdateMonitor.getInstance(mContext).isSimPinSecure(); 958 } 959 960 /** 961 * Update the newUserId. Call while holding WindowManagerService lock. 962 * NOTE: Should only be called by KeyguardViewMediator in response to the user id changing. 963 * 964 * @param newUserId The id of the incoming user. 965 */ 966 public void setCurrentUser(int newUserId) { 967 mLockPatternUtils.setCurrentUser(newUserId); 968 } 969 970 private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { 971 @Override 972 public void onReceive(Context context, Intent intent) { 973 if (DELAYED_KEYGUARD_ACTION.equals(intent.getAction())) { 974 final int sequence = intent.getIntExtra("seq", 0); 975 if (DEBUG) Log.d(TAG, "received DELAYED_KEYGUARD_ACTION with seq = " 976 + sequence + ", mDelayedShowingSequence = " + mDelayedShowingSequence); 977 synchronized (KeyguardViewMediator.this) { 978 if (mDelayedShowingSequence == sequence) { 979 // Don't play lockscreen SFX if the screen went off due to timeout. 980 mSuppressNextLockSound = true; 981 doKeyguardLocked(); 982 } 983 } 984 } 985 } 986 }; 987 988 /** 989 * When a key is received when the screen is off and the keyguard is showing, 990 * we need to decide whether to actually turn on the screen, and if so, tell 991 * the keyguard to prepare itself and poke the wake lock when it is ready. 992 * 993 * The 'Tq' suffix is per the documentation in {@link WindowManagerPolicy}. 994 * Be sure not to take any action that takes a long time; any significant 995 * action should be posted to a handler. 996 * 997 * @param keyCode The keycode of the key that woke the device 998 * @param isDocked True if the device is in the dock 999 * @return Whether we poked the wake lock (and turned the screen on) 1000 */ 1001 public boolean onWakeKeyWhenKeyguardShowingTq(int keyCode, boolean isDocked) { 1002 if (DEBUG) Log.d(TAG, "onWakeKeyWhenKeyguardShowing(" + keyCode + ")"); 1003 1004 if (isWakeKeyWhenKeyguardShowing(keyCode, isDocked)) { 1005 // give the keyguard view manager a chance to adjust the state of the 1006 // keyguard based on the key that woke the device before poking 1007 // the wake lock 1008 wakeWhenReadyLocked(keyCode); 1009 return true; 1010 } else { 1011 return false; 1012 } 1013 } 1014 1015 /** 1016 * When the keyguard is showing we ignore some keys that might otherwise typically 1017 * be considered wake keys. We filter them out here. 1018 * 1019 * {@link KeyEvent#KEYCODE_POWER} is notably absent from this list because it 1020 * is always considered a wake key. 1021 */ 1022 private boolean isWakeKeyWhenKeyguardShowing(int keyCode, boolean isDocked) { 1023 switch (keyCode) { 1024 // ignore volume keys unless docked 1025 case KeyEvent.KEYCODE_VOLUME_UP: 1026 case KeyEvent.KEYCODE_VOLUME_DOWN: 1027 case KeyEvent.KEYCODE_VOLUME_MUTE: 1028 return isDocked; 1029 1030 // ignore media and camera keys 1031 case KeyEvent.KEYCODE_MUTE: 1032 case KeyEvent.KEYCODE_HEADSETHOOK: 1033 case KeyEvent.KEYCODE_MEDIA_PLAY: 1034 case KeyEvent.KEYCODE_MEDIA_PAUSE: 1035 case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE: 1036 case KeyEvent.KEYCODE_MEDIA_STOP: 1037 case KeyEvent.KEYCODE_MEDIA_NEXT: 1038 case KeyEvent.KEYCODE_MEDIA_PREVIOUS: 1039 case KeyEvent.KEYCODE_MEDIA_REWIND: 1040 case KeyEvent.KEYCODE_MEDIA_RECORD: 1041 case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD: 1042 case KeyEvent.KEYCODE_CAMERA: 1043 return false; 1044 } 1045 return true; 1046 } 1047 1048 /** 1049 * When a wake motion such as an external mouse movement is received when the screen 1050 * is off and the keyguard is showing, we need to decide whether to actually turn 1051 * on the screen, and if so, tell the keyguard to prepare itself and poke the wake 1052 * 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 * @return Whether we poked the wake lock (and turned the screen on) 1059 */ 1060 public boolean onWakeMotionWhenKeyguardShowingTq() { 1061 if (DEBUG) Log.d(TAG, "onWakeMotionWhenKeyguardShowing()"); 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 wakeWhenReadyLocked(KeyEvent.KEYCODE_UNKNOWN); 1067 return true; 1068 } 1069 1070 public void keyguardDone(boolean authenticated, boolean wakeup) { 1071 synchronized (this) { 1072 EventLog.writeEvent(70000, 2); 1073 if (DEBUG) Log.d(TAG, "keyguardDone(" + authenticated + ")"); 1074 Message msg = mHandler.obtainMessage(KEYGUARD_DONE); 1075 msg.arg1 = wakeup ? 1 : 0; 1076 mHandler.sendMessage(msg); 1077 1078 if (authenticated) { 1079 mUpdateMonitor.clearFailedUnlockAttempts(); 1080 } 1081 1082 if (mExitSecureCallback != null) { 1083 mExitSecureCallback.onKeyguardExitResult(authenticated); 1084 mExitSecureCallback = null; 1085 1086 if (authenticated) { 1087 // after succesfully exiting securely, no need to reshow 1088 // the keyguard when they've released the lock 1089 mExternallyEnabled = true; 1090 mNeedToReshowWhenReenabled = false; 1091 } 1092 } 1093 } 1094 } 1095 1096 /** 1097 * This handler will be associated with the policy thread, which will also 1098 * be the UI thread of the keyguard. Since the apis of the policy, and therefore 1099 * this class, can be called by other threads, any action that directly 1100 * interacts with the keyguard ui should be posted to this handler, rather 1101 * than called directly. 1102 */ 1103 private Handler mHandler = new Handler(Looper.myLooper(), null, true /*async*/) { 1104 @Override 1105 public void handleMessage(Message msg) { 1106 switch (msg.what) { 1107 case SHOW: 1108 handleShow((Bundle) msg.obj); 1109 return ; 1110 case HIDE: 1111 handleHide(); 1112 return ; 1113 case RESET: 1114 handleReset((Bundle) msg.obj); 1115 return ; 1116 case VERIFY_UNLOCK: 1117 handleVerifyUnlock(); 1118 return; 1119 case NOTIFY_SCREEN_OFF: 1120 handleNotifyScreenOff(); 1121 return; 1122 case NOTIFY_SCREEN_ON: 1123 handleNotifyScreenOn((KeyguardViewManager.ShowListener)msg.obj); 1124 return; 1125 case WAKE_WHEN_READY: 1126 handleWakeWhenReady(msg.arg1); 1127 return; 1128 case KEYGUARD_DONE: 1129 handleKeyguardDone(msg.arg1 != 0); 1130 return; 1131 case KEYGUARD_DONE_DRAWING: 1132 handleKeyguardDoneDrawing(); 1133 return; 1134 case KEYGUARD_DONE_AUTHENTICATING: 1135 keyguardDone(true, true); 1136 return; 1137 case SET_HIDDEN: 1138 handleSetHidden(msg.arg1 != 0); 1139 break; 1140 case KEYGUARD_TIMEOUT: 1141 synchronized (KeyguardViewMediator.this) { 1142 doKeyguardLocked((Bundle) msg.obj); 1143 } 1144 break; 1145 } 1146 } 1147 }; 1148 1149 /** 1150 * @see #keyguardDone 1151 * @see #KEYGUARD_DONE 1152 */ 1153 private void handleKeyguardDone(boolean wakeup) { 1154 if (DEBUG) Log.d(TAG, "handleKeyguardDone"); 1155 handleHide(); 1156 if (wakeup) { 1157 wakeUp(); 1158 } 1159 1160 sendUserPresentBroadcast(); 1161 } 1162 1163 private void sendUserPresentBroadcast() { 1164 if (!(mContext instanceof Activity)) { 1165 final UserHandle currentUser = new UserHandle(mLockPatternUtils.getCurrentUser()); 1166 mContext.sendBroadcastAsUser(mUserPresentIntent, currentUser); 1167 } 1168 } 1169 1170 /** 1171 * @see #keyguardDoneDrawing 1172 * @see #KEYGUARD_DONE_DRAWING 1173 */ 1174 private void handleKeyguardDoneDrawing() { 1175 synchronized(this) { 1176 if (false) Log.d(TAG, "handleKeyguardDoneDrawing"); 1177 if (mWaitingUntilKeyguardVisible) { 1178 if (DEBUG) Log.d(TAG, "handleKeyguardDoneDrawing: notifying mWaitingUntilKeyguardVisible"); 1179 mWaitingUntilKeyguardVisible = false; 1180 notifyAll(); 1181 1182 // there will usually be two of these sent, one as a timeout, and one 1183 // as a result of the callback, so remove any remaining messages from 1184 // the queue 1185 mHandler.removeMessages(KEYGUARD_DONE_DRAWING); 1186 } 1187 } 1188 } 1189 1190 private void playSounds(boolean locked) { 1191 // User feedback for keyguard. 1192 1193 if (mSuppressNextLockSound) { 1194 mSuppressNextLockSound = false; 1195 return; 1196 } 1197 1198 final ContentResolver cr = mContext.getContentResolver(); 1199 if (Settings.System.getInt(cr, Settings.System.LOCKSCREEN_SOUNDS_ENABLED, 1) == 1) { 1200 final int whichSound = locked 1201 ? mLockSoundId 1202 : mUnlockSoundId; 1203 mLockSounds.stop(mLockSoundStreamId); 1204 // Init mAudioManager 1205 if (mAudioManager == null) { 1206 mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 1207 if (mAudioManager == null) return; 1208 mMasterStreamType = mAudioManager.getMasterStreamType(); 1209 } 1210 // If the stream is muted, don't play the sound 1211 if (mAudioManager.isStreamMute(mMasterStreamType)) return; 1212 1213 mLockSoundStreamId = mLockSounds.play(whichSound, 1214 mLockSoundVolume, mLockSoundVolume, 1/*priortiy*/, 0/*loop*/, 1.0f/*rate*/); 1215 } 1216 } 1217 1218 private void updateActivityLockScreenState() { 1219 try { 1220 ActivityManagerNative.getDefault().setLockScreenShown( 1221 mShowing && !mHidden); 1222 } catch (RemoteException e) { 1223 } 1224 } 1225 1226 /** 1227 * Handle message sent by {@link #showLocked}. 1228 * @see #SHOW 1229 */ 1230 private void handleShow(Bundle options) { 1231 synchronized (KeyguardViewMediator.this) { 1232 if (DEBUG) Log.d(TAG, "handleShow"); 1233 if (!mSystemReady) return; 1234 1235 mKeyguardViewManager.show(options); 1236 mShowing = true; 1237 updateActivityLockScreenState(); 1238 adjustStatusBarLocked(); 1239 userActivity(); 1240 try { 1241 ActivityManagerNative.getDefault().closeSystemDialogs("lock"); 1242 } catch (RemoteException e) { 1243 } 1244 1245 // Do this at the end to not slow down display of the keyguard. 1246 playSounds(true); 1247 1248 mShowKeyguardWakeLock.release(); 1249 } 1250 } 1251 1252 /** 1253 * Handle message sent by {@link #hideLocked()} 1254 * @see #HIDE 1255 */ 1256 private void handleHide() { 1257 synchronized (KeyguardViewMediator.this) { 1258 if (DEBUG) Log.d(TAG, "handleHide"); 1259 if (mWakeAndHandOff.isHeld()) { 1260 Log.w(TAG, "attempt to hide the keyguard while waking, ignored"); 1261 return; 1262 } 1263 1264 // only play "unlock" noises if not on a call (since the incall UI 1265 // disables the keyguard) 1266 if (TelephonyManager.EXTRA_STATE_IDLE.equals(mPhoneState)) { 1267 playSounds(false); 1268 } 1269 1270 mKeyguardViewManager.hide(); 1271 mShowing = false; 1272 updateActivityLockScreenState(); 1273 adjustStatusBarLocked(); 1274 } 1275 } 1276 1277 private void adjustStatusBarLocked() { 1278 if (mStatusBarManager == null) { 1279 mStatusBarManager = (StatusBarManager) 1280 mContext.getSystemService(Context.STATUS_BAR_SERVICE); 1281 } 1282 if (mStatusBarManager == null) { 1283 Log.w(TAG, "Could not get status bar manager"); 1284 } else { 1285 if (mShowLockIcon) { 1286 // Give feedback to user when secure keyguard is active and engaged 1287 if (mShowing && isSecure()) { 1288 if (!mShowingLockIcon) { 1289 String contentDescription = mContext.getString( 1290 com.android.internal.R.string.status_bar_device_locked); 1291 mStatusBarManager.setIcon("secure", 1292 com.android.internal.R.drawable.stat_sys_secure, 0, 1293 contentDescription); 1294 mShowingLockIcon = true; 1295 } 1296 } else { 1297 if (mShowingLockIcon) { 1298 mStatusBarManager.removeIcon("secure"); 1299 mShowingLockIcon = false; 1300 } 1301 } 1302 } 1303 1304 // Disable aspects of the system/status/navigation bars that must not be re-enabled by 1305 // windows that appear on top, ever 1306 int flags = StatusBarManager.DISABLE_NONE; 1307 if (mShowing) { 1308 // Permanently disable components not available when keyguard is enabled 1309 // (like recents). Temporary enable/disable (e.g. the "back" button) are 1310 // done in KeyguardHostView. 1311 flags |= StatusBarManager.DISABLE_RECENT; 1312 if (!mScreenOn) { 1313 // Disable all navbar buttons on screen off. The navigation bar will hide 1314 // these immediately to avoid seeing the end of layout transition animations 1315 // if quickly turning back on. 1316 flags |= StatusBarManager.DISABLE_HOME; 1317 flags |= StatusBarManager.DISABLE_BACK; 1318 } 1319 if (isSecure() || !ENABLE_INSECURE_STATUS_BAR_EXPAND) { 1320 // showing secure lockscreen; disable expanding. 1321 flags |= StatusBarManager.DISABLE_EXPAND; 1322 } 1323 if (isSecure()) { 1324 // showing secure lockscreen; disable ticker. 1325 flags |= StatusBarManager.DISABLE_NOTIFICATION_TICKER; 1326 } 1327 } 1328 1329 if (DEBUG) { 1330 Log.d(TAG, "adjustStatusBarLocked: mShowing=" + mShowing + " mHidden=" + mHidden 1331 + " isSecure=" + isSecure() + " --> flags=0x" + Integer.toHexString(flags)); 1332 } 1333 1334 if (!(mContext instanceof Activity)) { 1335 mStatusBarManager.disable(flags); 1336 } 1337 } 1338 } 1339 1340 /** 1341 * Handle message sent by {@link #wakeWhenReadyLocked(int)} 1342 * @param keyCode The key that woke the device. 1343 * @see #WAKE_WHEN_READY 1344 */ 1345 private void handleWakeWhenReady(int keyCode) { 1346 synchronized (KeyguardViewMediator.this) { 1347 if (DBG_WAKE) Log.d(TAG, "handleWakeWhenReady(" + keyCode + ")"); 1348 1349 // this should result in a call to 'poke wakelock' which will set a timeout 1350 // on releasing the wakelock 1351 if (!mKeyguardViewManager.wakeWhenReadyTq(keyCode)) { 1352 // poke wakelock ourselves if keyguard is no longer active 1353 Log.w(TAG, "mKeyguardViewManager.wakeWhenReadyTq did not poke wake lock, so poke it ourselves"); 1354 userActivity(); 1355 } 1356 1357 /** 1358 * Now that the keyguard is ready and has poked the wake lock, we can 1359 * release the handoff wakelock 1360 */ 1361 mWakeAndHandOff.release(); 1362 } 1363 } 1364 1365 /** 1366 * Handle message sent by {@link #resetStateLocked(Bundle)} 1367 * @see #RESET 1368 */ 1369 private void handleReset(Bundle options) { 1370 synchronized (KeyguardViewMediator.this) { 1371 if (DEBUG) Log.d(TAG, "handleReset"); 1372 mKeyguardViewManager.reset(options); 1373 } 1374 } 1375 1376 /** 1377 * Handle message sent by {@link #verifyUnlock} 1378 * @see #VERIFY_UNLOCK 1379 */ 1380 private void handleVerifyUnlock() { 1381 synchronized (KeyguardViewMediator.this) { 1382 if (DEBUG) Log.d(TAG, "handleVerifyUnlock"); 1383 mKeyguardViewManager.verifyUnlock(); 1384 mShowing = true; 1385 updateActivityLockScreenState(); 1386 } 1387 } 1388 1389 /** 1390 * Handle message sent by {@link #notifyScreenOffLocked()} 1391 * @see #NOTIFY_SCREEN_OFF 1392 */ 1393 private void handleNotifyScreenOff() { 1394 synchronized (KeyguardViewMediator.this) { 1395 if (DEBUG) Log.d(TAG, "handleNotifyScreenOff"); 1396 mKeyguardViewManager.onScreenTurnedOff(); 1397 } 1398 } 1399 1400 /** 1401 * Handle message sent by {@link #notifyScreenOnLocked()} 1402 * @see #NOTIFY_SCREEN_ON 1403 */ 1404 private void handleNotifyScreenOn(KeyguardViewManager.ShowListener showListener) { 1405 synchronized (KeyguardViewMediator.this) { 1406 if (DEBUG) Log.d(TAG, "handleNotifyScreenOn"); 1407 mKeyguardViewManager.onScreenTurnedOn(showListener); 1408 } 1409 } 1410 1411} 1412