KeyguardViewMediator.java revision 1254f2f42f7173ef51d0034975ab5cb7d44f8209
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.WindowManagerPolicy; 50 51import com.android.internal.telephony.IccCardConstants; 52import com.android.internal.widget.LockPatternUtils; 53 54 55/** 56 * Mediates requests related to the keyguard. This includes queries about the 57 * state of the keyguard, power management events that effect whether the keyguard 58 * should be shown or reset, callbacks to the phone window manager to notify 59 * it of when the keyguard is showing, and events from the keyguard view itself 60 * stating that the keyguard was succesfully unlocked. 61 * 62 * Note that the keyguard view is shown when the screen is off (as appropriate) 63 * so that once the screen comes on, it will be ready immediately. 64 * 65 * Example queries about the keyguard: 66 * - is {movement, key} one that should wake the keygaurd? 67 * - is the keyguard showing? 68 * - are input events restricted due to the state of the keyguard? 69 * 70 * Callbacks to the phone window manager: 71 * - the keyguard is showing 72 * 73 * Example external events that translate to keyguard view changes: 74 * - screen turned off -> reset the keyguard, and show it so it will be ready 75 * next time the screen turns on 76 * - keyboard is slid open -> if the keyguard is not secure, hide it 77 * 78 * Events from the keyguard view: 79 * - user succesfully unlocked keyguard -> hide keyguard view, and no longer 80 * restrict input events. 81 * 82 * Note: in addition to normal power managment events that effect the state of 83 * whether the keyguard should be showing, external apps and services may request 84 * that the keyguard be disabled via {@link #setKeyguardEnabled(boolean)}. When 85 * false, this will override all other conditions for turning on the keyguard. 86 * 87 * Threading and synchronization: 88 * This class is created by the initialization routine of the {@link WindowManagerPolicy}, 89 * and runs on its thread. The keyguard UI is created from that thread in the 90 * constructor of this class. The apis may be called from other threads, including the 91 * {@link com.android.server.input.InputManagerService}'s and {@link android.view.WindowManager}'s. 92 * Therefore, methods on this class are synchronized, and any action that is pointed 93 * directly to the keyguard UI is posted to a {@link Handler} to ensure it is taken on the UI 94 * thread of the keyguard. 95 */ 96public class KeyguardViewMediator { 97 private static final int KEYGUARD_DISPLAY_TIMEOUT_DELAY_DEFAULT = 30000; 98 private final static boolean DEBUG = false; 99 private final static boolean DBG_WAKE = false; 100 101 private final static String TAG = "KeyguardViewMediator"; 102 103 private static final String DELAYED_KEYGUARD_ACTION = 104 "com.android.internal.policy.impl.PhoneWindowManager.DELAYED_KEYGUARD"; 105 106 // used for handler messages 107 private static final int SHOW = 2; 108 private static final int HIDE = 3; 109 private static final int RESET = 4; 110 private static final int VERIFY_UNLOCK = 5; 111 private static final int NOTIFY_SCREEN_OFF = 6; 112 private static final int NOTIFY_SCREEN_ON = 7; 113 private static final int WAKE_WHEN_READY = 8; 114 private static final int KEYGUARD_DONE = 9; 115 private static final int KEYGUARD_DONE_DRAWING = 10; 116 private static final int KEYGUARD_DONE_AUTHENTICATING = 11; 117 private static final int SET_HIDDEN = 12; 118 private static final int KEYGUARD_TIMEOUT = 13; 119 120 /** 121 * The default amount of time we stay awake (used for all key input) 122 */ 123 protected static final int AWAKE_INTERVAL_DEFAULT_MS = 10000; 124 125 /** 126 * How long to wait after the screen turns off due to timeout before 127 * turning on the keyguard (i.e, the user has this much time to turn 128 * the screen back on without having to face the keyguard). 129 */ 130 private static final int KEYGUARD_LOCK_AFTER_DELAY_DEFAULT = 5000; 131 132 /** 133 * How long we'll wait for the {@link ViewMediatorCallback#keyguardDoneDrawing()} 134 * callback before unblocking a call to {@link #setKeyguardEnabled(boolean)} 135 * that is reenabling the keyguard. 136 */ 137 private static final int KEYGUARD_DONE_DRAWING_TIMEOUT_MS = 2000; 138 139 /** 140 * Allow the user to expand the status bar when the keyguard is engaged 141 * (without a pattern or password). 142 */ 143 private static final boolean ENABLE_INSECURE_STATUS_BAR_EXPAND = true; 144 145 /** The stream type that the lock sounds are tied to. */ 146 private int mMasterStreamType; 147 148 private Context mContext; 149 private AlarmManager mAlarmManager; 150 private AudioManager mAudioManager; 151 private StatusBarManager mStatusBarManager; 152 private boolean mShowLockIcon; 153 private boolean mShowingLockIcon; 154 155 private boolean mSystemReady; 156 157 // Whether the next call to playSounds() should be skipped. Defaults to 158 // true because the first lock (on boot) should be silent. 159 private boolean mSuppressNextLockSound = true; 160 161 162 /** High level access to the power manager for WakeLocks */ 163 private PowerManager mPM; 164 165 /** UserManager for querying number of users */ 166 private UserManager mUserManager; 167 168 /** 169 * Used to keep the device awake while to ensure the keyguard finishes opening before 170 * we sleep. 171 */ 172 private PowerManager.WakeLock mShowKeyguardWakeLock; 173 174 /** 175 * Does not turn on screen, held while a call to {@link KeyguardViewManager#wakeWhenReadyTq(int)} 176 * is called to make sure the device doesn't sleep before it has a chance to poke 177 * the wake lock. 178 * @see #wakeWhenReadyLocked(int) 179 */ 180 private PowerManager.WakeLock mWakeAndHandOff; 181 182 private KeyguardViewManager mKeyguardViewManager; 183 184 // these are protected by synchronized (this) 185 186 /** 187 * External apps (like the phone app) can tell us to disable the keygaurd. 188 */ 189 private boolean mExternallyEnabled = true; 190 191 /** 192 * Remember if an external call to {@link #setKeyguardEnabled} with value 193 * false caused us to hide the keyguard, so that we need to reshow it once 194 * the keygaurd is reenabled with another call with value true. 195 */ 196 private boolean mNeedToReshowWhenReenabled = false; 197 198 // cached value of whether we are showing (need to know this to quickly 199 // answer whether the input should be restricted) 200 private boolean mShowing = false; 201 202 // true if the keyguard is hidden by another window 203 private boolean mHidden = false; 204 205 /** 206 * Helps remember whether the screen has turned on since the last time 207 * it turned off due to timeout. see {@link #onScreenTurnedOff(int)} 208 */ 209 private int mDelayedShowingSequence; 210 211 /** 212 * If the user has disabled the keyguard, then requests to exit, this is 213 * how we'll ultimately let them know whether it was successful. We use this 214 * var being non-null as an indicator that there is an in progress request. 215 */ 216 private WindowManagerPolicy.OnKeyguardExitResult mExitSecureCallback; 217 218 // the properties of the keyguard 219 220 private KeyguardUpdateMonitor mUpdateMonitor; 221 222 private boolean mScreenOn; 223 224 // last known state of the cellular connection 225 private String mPhoneState = TelephonyManager.EXTRA_STATE_IDLE; 226 227 /** 228 * we send this intent when the keyguard is dismissed. 229 */ 230 private Intent mUserPresentIntent; 231 232 /** 233 * {@link #setKeyguardEnabled} waits on this condition when it reenables 234 * the keyguard. 235 */ 236 private boolean mWaitingUntilKeyguardVisible = false; 237 private LockPatternUtils mLockPatternUtils; 238 239 private SoundPool mLockSounds; 240 private int mLockSoundId; 241 private int mUnlockSoundId; 242 private int mLockSoundStreamId; 243 244 /** 245 * The volume applied to the lock/unlock sounds. 246 */ 247 private final float mLockSoundVolume; 248 249 /** 250 * The callback used by the keyguard view to tell the {@link KeyguardViewMediator} 251 * various things. 252 */ 253 public interface ViewMediatorCallback { 254 255 /** 256 * Wake the device immediately. 257 */ 258 void wakeUp(); 259 260 /** 261 * Reports user activity and requests that the screen stay on. 262 */ 263 void userActivity(); 264 265 /** 266 * Reports user activity and requests that the screen stay on for at least 267 * the specified amount of time. 268 * @param millis The amount of time in millis. This value is currently ignored. 269 */ 270 void userActivity(long millis); 271 272 /** 273 * Report that the keyguard is done. 274 * @param authenticated Whether the user securely got past the keyguard. 275 * the only reason for this to be false is if the keyguard was instructed 276 * to appear temporarily to verify the user is supposed to get past the 277 * keyguard, and the user fails to do so. 278 */ 279 void keyguardDone(boolean authenticated); 280 281 /** 282 * Report that the keyguard is done drawing. 283 */ 284 void keyguardDoneDrawing(); 285 286 /** 287 * Tell ViewMediator that the current view needs IME input 288 * @param needsInput 289 */ 290 void setNeedsInput(boolean needsInput); 291 292 /** 293 * Tell view mediator that the keyguard view's desired user activity timeout 294 * has changed and needs to be reapplied to the window. 295 */ 296 void onUserActivityTimeoutChanged(); 297 } 298 299 KeyguardUpdateMonitorCallback mUpdateCallback = new KeyguardUpdateMonitorCallback() { 300 301 @Override 302 public void onUserSwitched(int userId) { 303 // Note that the mLockPatternUtils user has already been updated from setCurrentUser. 304 // We need to force a reset of the views, since lockNow (called by 305 // ActivityManagerService) will not reconstruct the keyguard if it is already showing. 306 synchronized (KeyguardViewMediator.this) { 307 Bundle options = new Bundle(); 308 options.putBoolean(LockPatternUtils.KEYGUARD_SHOW_USER_SWITCHER, true); 309 options.putBoolean(LockPatternUtils.KEYGUARD_SHOW_SECURITY_CHALLENGE, true); 310 resetStateLocked(options); 311 adjustStatusBarLocked(); 312 // Disable face unlock when the user switches. 313 KeyguardUpdateMonitor.getInstance(mContext).setAlternateUnlockEnabled(false); 314 } 315 } 316 317 @Override 318 public void onUserRemoved(int userId) { 319 mLockPatternUtils.removeUser(userId); 320 } 321 322 @Override 323 void onPhoneStateChanged(int phoneState) { 324 synchronized (KeyguardViewMediator.this) { 325 if (TelephonyManager.CALL_STATE_IDLE == phoneState // call ending 326 && !mScreenOn // screen off 327 && mExternallyEnabled) { // not disabled by any app 328 329 // note: this is a way to gracefully reenable the keyguard when the call 330 // ends and the screen is off without always reenabling the keyguard 331 // each time the screen turns off while in call (and having an occasional ugly 332 // flicker while turning back on the screen and disabling the keyguard again). 333 if (DEBUG) Log.d(TAG, "screen is off and call ended, let's make sure the " 334 + "keyguard is showing"); 335 doKeyguardLocked(); 336 } 337 } 338 }; 339 340 @Override 341 public void onClockVisibilityChanged() { 342 adjustStatusBarLocked(); 343 } 344 345 @Override 346 public void onDeviceProvisioned() { 347 sendUserPresentBroadcast(); 348 } 349 350 @Override 351 public void onSimStateChanged(IccCardConstants.State simState) { 352 if (DEBUG) Log.d(TAG, "onSimStateChanged: " + simState); 353 354 switch (simState) { 355 case NOT_READY: 356 case ABSENT: 357 // only force lock screen in case of missing sim if user hasn't 358 // gone through setup wizard 359 synchronized (this) { 360 if (!mUpdateMonitor.isDeviceProvisioned()) { 361 if (!isShowing()) { 362 if (DEBUG) Log.d(TAG, "ICC_ABSENT isn't showing," 363 + " we need to show the keyguard since the " 364 + "device isn't provisioned yet."); 365 doKeyguardLocked(); 366 } else { 367 resetStateLocked(null); 368 } 369 } 370 } 371 break; 372 case PIN_REQUIRED: 373 case PUK_REQUIRED: 374 synchronized (this) { 375 if (!isShowing()) { 376 if (DEBUG) Log.d(TAG, "INTENT_VALUE_ICC_LOCKED and keygaurd isn't " 377 + "showing; need to show keyguard so user can enter sim pin"); 378 doKeyguardLocked(); 379 } else { 380 resetStateLocked(null); 381 } 382 } 383 break; 384 case PERM_DISABLED: 385 synchronized (this) { 386 if (!isShowing()) { 387 if (DEBUG) Log.d(TAG, "PERM_DISABLED and " 388 + "keygaurd isn't showing."); 389 doKeyguardLocked(); 390 } else { 391 if (DEBUG) Log.d(TAG, "PERM_DISABLED, resetStateLocked to" 392 + "show permanently disabled message in lockscreen."); 393 resetStateLocked(null); 394 } 395 } 396 break; 397 case READY: 398 synchronized (this) { 399 if (isShowing()) { 400 resetStateLocked(null); 401 } 402 } 403 break; 404 } 405 } 406 407 }; 408 409 ViewMediatorCallback mViewMediatorCallback = new ViewMediatorCallback() { 410 public void wakeUp() { 411 KeyguardViewMediator.this.wakeUp(); 412 } 413 414 public void userActivity() { 415 KeyguardViewMediator.this.userActivity(); 416 } 417 418 public void userActivity(long holdMs) { 419 KeyguardViewMediator.this.userActivity(holdMs); 420 } 421 422 public void keyguardDone(boolean authenticated) { 423 KeyguardViewMediator.this.keyguardDone(authenticated, true); 424 } 425 426 public void keyguardDoneDrawing() { 427 mHandler.sendEmptyMessage(KEYGUARD_DONE_DRAWING); 428 } 429 430 @Override 431 public void setNeedsInput(boolean needsInput) { 432 mKeyguardViewManager.setNeedsInput(needsInput); 433 } 434 435 @Override 436 public void onUserActivityTimeoutChanged() { 437 mKeyguardViewManager.updateUserActivityTimeout(); 438 } 439 }; 440 441 public void wakeUp() { 442 mPM.wakeUp(SystemClock.uptimeMillis()); 443 } 444 445 public void userActivity() { 446 userActivity(AWAKE_INTERVAL_DEFAULT_MS); 447 } 448 449 public void userActivity(long holdMs) { 450 // We ignore the hold time. Eventually we should remove it. 451 // Instead, the keyguard window has an explicit user activity timeout set on it. 452 mPM.userActivity(SystemClock.uptimeMillis(), false); 453 } 454 455 /** 456 * Construct a KeyguardViewMediator 457 * @param context 458 * @param lockPatternUtils optional mock interface for LockPatternUtils 459 */ 460 public KeyguardViewMediator(Context context, LockPatternUtils lockPatternUtils) { 461 mContext = context; 462 mPM = (PowerManager) context.getSystemService(Context.POWER_SERVICE); 463 mUserManager = (UserManager) mContext.getSystemService(Context.USER_SERVICE); 464 mShowKeyguardWakeLock = mPM.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "show keyguard"); 465 mShowKeyguardWakeLock.setReferenceCounted(false); 466 467 mWakeAndHandOff = mPM.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "keyguardWakeAndHandOff"); 468 mWakeAndHandOff.setReferenceCounted(false); 469 470 mContext.registerReceiver(mBroadcastReceiver, new IntentFilter(DELAYED_KEYGUARD_ACTION)); 471 472 mAlarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE); 473 474 mUpdateMonitor = KeyguardUpdateMonitor.getInstance(context); 475 476 mLockPatternUtils = lockPatternUtils != null 477 ? lockPatternUtils : new LockPatternUtils(mContext); 478 mLockPatternUtils.setCurrentUser(UserHandle.USER_OWNER); 479 480 WindowManager wm = (WindowManager)context.getSystemService(Context.WINDOW_SERVICE); 481 482 mKeyguardViewManager = new KeyguardViewManager(context, wm, mViewMediatorCallback, 483 mLockPatternUtils); 484 485 mUserPresentIntent = new Intent(Intent.ACTION_USER_PRESENT); 486 mUserPresentIntent.addFlags(Intent.FLAG_RECEIVER_REPLACE_PENDING 487 | Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT); 488 489 final ContentResolver cr = mContext.getContentResolver(); 490 mShowLockIcon = (Settings.System.getInt(cr, "show_status_bar_lock", 0) == 1); 491 492 mScreenOn = mPM.isScreenOn(); 493 494 mLockSounds = new SoundPool(1, AudioManager.STREAM_SYSTEM, 0); 495 String soundPath = Settings.Global.getString(cr, Settings.Global.LOCK_SOUND); 496 if (soundPath != null) { 497 mLockSoundId = mLockSounds.load(soundPath, 1); 498 } 499 if (soundPath == null || mLockSoundId == 0) { 500 Log.w(TAG, "failed to load lock sound from " + soundPath); 501 } 502 soundPath = Settings.Global.getString(cr, Settings.Global.UNLOCK_SOUND); 503 if (soundPath != null) { 504 mUnlockSoundId = mLockSounds.load(soundPath, 1); 505 } 506 if (soundPath == null || mUnlockSoundId == 0) { 507 Log.w(TAG, "failed to load unlock sound from " + soundPath); 508 } 509 int lockSoundDefaultAttenuation = context.getResources().getInteger( 510 com.android.internal.R.integer.config_lockSoundVolumeDb); 511 mLockSoundVolume = (float)Math.pow(10, (float)lockSoundDefaultAttenuation/20); 512 } 513 514 /** 515 * Let us know that the system is ready after startup. 516 */ 517 public void onSystemReady() { 518 synchronized (this) { 519 if (DEBUG) Log.d(TAG, "onSystemReady"); 520 mSystemReady = true; 521 mUpdateMonitor.registerCallback(mUpdateCallback); 522 523 // Disable alternate unlock right after boot until things have settled. 524 mUpdateMonitor.setAlternateUnlockEnabled(false); 525 mUpdateMonitor.setIsFirstBoot(true); 526 527 doKeyguardLocked(); 528 } 529 // Most services aren't available until the system reaches the ready state, so we 530 // send it here when the device first boots. 531 maybeSendUserPresentBroadcast(); 532 } 533 534 /** 535 * Called to let us know the screen was turned off. 536 * @param why either {@link WindowManagerPolicy#OFF_BECAUSE_OF_USER}, 537 * {@link WindowManagerPolicy#OFF_BECAUSE_OF_TIMEOUT} or 538 * {@link WindowManagerPolicy#OFF_BECAUSE_OF_PROX_SENSOR}. 539 */ 540 public void onScreenTurnedOff(int why) { 541 synchronized (this) { 542 mScreenOn = false; 543 if (DEBUG) Log.d(TAG, "onScreenTurnedOff(" + why + ")"); 544 545 // Lock immediately based on setting if secure (user has a pin/pattern/password). 546 // This also "locks" the device when not secure to provide easy access to the 547 // camera while preventing unwanted input. 548 final boolean lockImmediately = 549 mLockPatternUtils.getPowerButtonInstantlyLocks() || !mLockPatternUtils.isSecure(); 550 551 if (mExitSecureCallback != null) { 552 if (DEBUG) Log.d(TAG, "pending exit secure callback cancelled"); 553 mExitSecureCallback.onKeyguardExitResult(false); 554 mExitSecureCallback = null; 555 if (!mExternallyEnabled) { 556 hideLocked(); 557 } 558 } else if (mShowing) { 559 notifyScreenOffLocked(); 560 resetStateLocked(null); 561 } else if (why == WindowManagerPolicy.OFF_BECAUSE_OF_TIMEOUT 562 || (why == WindowManagerPolicy.OFF_BECAUSE_OF_USER && !lockImmediately)) { 563 doKeyguardLaterLocked(); 564 } else if (why == WindowManagerPolicy.OFF_BECAUSE_OF_PROX_SENSOR) { 565 // Do not enable the keyguard if the prox sensor forced the screen off. 566 } else { 567 doKeyguardLocked(); 568 } 569 } 570 } 571 572 private void doKeyguardLaterLocked() { 573 // if the screen turned off because of timeout or the user hit the power button 574 // and we don't need to lock immediately, set an alarm 575 // to enable it a little bit later (i.e, give the user a chance 576 // to turn the screen back on within a certain window without 577 // having to unlock the screen) 578 final ContentResolver cr = mContext.getContentResolver(); 579 580 // From DisplaySettings 581 long displayTimeout = Settings.System.getInt(cr, SCREEN_OFF_TIMEOUT, 582 KEYGUARD_DISPLAY_TIMEOUT_DELAY_DEFAULT); 583 584 // From SecuritySettings 585 final long lockAfterTimeout = Settings.Secure.getInt(cr, 586 Settings.Secure.LOCK_SCREEN_LOCK_AFTER_TIMEOUT, 587 KEYGUARD_LOCK_AFTER_DELAY_DEFAULT); 588 589 // From DevicePolicyAdmin 590 final long policyTimeout = mLockPatternUtils.getDevicePolicyManager() 591 .getMaximumTimeToLock(null, mLockPatternUtils.getCurrentUser()); 592 593 long timeout; 594 if (policyTimeout > 0) { 595 // policy in effect. Make sure we don't go beyond policy limit. 596 displayTimeout = Math.max(displayTimeout, 0); // ignore negative values 597 timeout = Math.min(policyTimeout - displayTimeout, lockAfterTimeout); 598 } else { 599 timeout = lockAfterTimeout; 600 } 601 602 if (timeout <= 0) { 603 // Lock now 604 mSuppressNextLockSound = true; 605 doKeyguardLocked(); 606 } else { 607 // Lock in the future 608 long when = SystemClock.elapsedRealtime() + timeout; 609 Intent intent = new Intent(DELAYED_KEYGUARD_ACTION); 610 intent.putExtra("seq", mDelayedShowingSequence); 611 PendingIntent sender = PendingIntent.getBroadcast(mContext, 612 0, intent, PendingIntent.FLAG_CANCEL_CURRENT); 613 mAlarmManager.set(AlarmManager.ELAPSED_REALTIME_WAKEUP, when, sender); 614 if (DEBUG) Log.d(TAG, "setting alarm to turn off keyguard, seq = " 615 + mDelayedShowingSequence); 616 } 617 } 618 619 private void cancelDoKeyguardLaterLocked() { 620 mDelayedShowingSequence++; 621 } 622 623 /** 624 * Let's us know the screen was turned on. 625 */ 626 public void onScreenTurnedOn(KeyguardViewManager.ShowListener showListener) { 627 synchronized (this) { 628 mScreenOn = true; 629 cancelDoKeyguardLaterLocked(); 630 if (DEBUG) Log.d(TAG, "onScreenTurnedOn, seq = " + mDelayedShowingSequence); 631 if (showListener != null) { 632 notifyScreenOnLocked(showListener); 633 } 634 } 635 maybeSendUserPresentBroadcast(); 636 } 637 638 private void maybeSendUserPresentBroadcast() { 639 if (mSystemReady && mLockPatternUtils.isLockScreenDisabled() 640 && mUserManager.getUsers(true).size() == 1) { 641 // Lock screen is disabled because the user has set the preference to "None". 642 // In this case, send out ACTION_USER_PRESENT here instead of in 643 // handleKeyguardDone() 644 sendUserPresentBroadcast(); 645 } 646 } 647 648 /** 649 * A dream started. We should lock after the usual screen-off lock timeout but only 650 * if there is a secure lock pattern. 651 */ 652 public void onDreamingStarted() { 653 synchronized (this) { 654 if (mScreenOn && mLockPatternUtils.isSecure()) { 655 doKeyguardLaterLocked(); 656 } 657 } 658 } 659 660 /** 661 * A dream stopped. 662 */ 663 public void onDreamingStopped() { 664 synchronized (this) { 665 if (mScreenOn) { 666 cancelDoKeyguardLaterLocked(); 667 } 668 } 669 } 670 671 /** 672 * Same semantics as {@link WindowManagerPolicy#enableKeyguard}; provide 673 * a way for external stuff to override normal keyguard behavior. For instance 674 * the phone app disables the keyguard when it receives incoming calls. 675 */ 676 public void setKeyguardEnabled(boolean enabled) { 677 synchronized (this) { 678 if (DEBUG) Log.d(TAG, "setKeyguardEnabled(" + enabled + ")"); 679 680 mExternallyEnabled = enabled; 681 682 if (!enabled && mShowing) { 683 if (mExitSecureCallback != null) { 684 if (DEBUG) Log.d(TAG, "in process of verifyUnlock request, ignoring"); 685 // we're in the process of handling a request to verify the user 686 // can get past the keyguard. ignore extraneous requests to disable / reenable 687 return; 688 } 689 690 // hiding keyguard that is showing, remember to reshow later 691 if (DEBUG) Log.d(TAG, "remembering to reshow, hiding keyguard, " 692 + "disabling status bar expansion"); 693 mNeedToReshowWhenReenabled = true; 694 hideLocked(); 695 } else if (enabled && mNeedToReshowWhenReenabled) { 696 // reenabled after previously hidden, reshow 697 if (DEBUG) Log.d(TAG, "previously hidden, reshowing, reenabling " 698 + "status bar expansion"); 699 mNeedToReshowWhenReenabled = false; 700 701 if (mExitSecureCallback != null) { 702 if (DEBUG) Log.d(TAG, "onKeyguardExitResult(false), resetting"); 703 mExitSecureCallback.onKeyguardExitResult(false); 704 mExitSecureCallback = null; 705 resetStateLocked(null); 706 } else { 707 showLocked(null); 708 709 // block until we know the keygaurd is done drawing (and post a message 710 // to unblock us after a timeout so we don't risk blocking too long 711 // and causing an ANR). 712 mWaitingUntilKeyguardVisible = true; 713 mHandler.sendEmptyMessageDelayed(KEYGUARD_DONE_DRAWING, KEYGUARD_DONE_DRAWING_TIMEOUT_MS); 714 if (DEBUG) Log.d(TAG, "waiting until mWaitingUntilKeyguardVisible is false"); 715 while (mWaitingUntilKeyguardVisible) { 716 try { 717 wait(); 718 } catch (InterruptedException e) { 719 Thread.currentThread().interrupt(); 720 } 721 } 722 if (DEBUG) Log.d(TAG, "done waiting for mWaitingUntilKeyguardVisible"); 723 } 724 } 725 } 726 } 727 728 /** 729 * @see android.app.KeyguardManager#exitKeyguardSecurely 730 */ 731 public void verifyUnlock(WindowManagerPolicy.OnKeyguardExitResult callback) { 732 synchronized (this) { 733 if (DEBUG) Log.d(TAG, "verifyUnlock"); 734 if (!mUpdateMonitor.isDeviceProvisioned()) { 735 // don't allow this api when the device isn't provisioned 736 if (DEBUG) Log.d(TAG, "ignoring because device isn't provisioned"); 737 callback.onKeyguardExitResult(false); 738 } else if (mExternallyEnabled) { 739 // this only applies when the user has externally disabled the 740 // keyguard. this is unexpected and means the user is not 741 // using the api properly. 742 Log.w(TAG, "verifyUnlock called when not externally disabled"); 743 callback.onKeyguardExitResult(false); 744 } else if (mExitSecureCallback != null) { 745 // already in progress with someone else 746 callback.onKeyguardExitResult(false); 747 } else { 748 mExitSecureCallback = callback; 749 verifyUnlockLocked(); 750 } 751 } 752 } 753 754 /** 755 * Is the keyguard currently showing? 756 */ 757 public boolean isShowing() { 758 return mShowing; 759 } 760 761 /** 762 * Is the keyguard currently showing and not being force hidden? 763 */ 764 public boolean isShowingAndNotHidden() { 765 return mShowing && !mHidden; 766 } 767 768 /** 769 * Notify us when the keyguard is hidden by another window 770 */ 771 public void setHidden(boolean isHidden) { 772 if (DEBUG) Log.d(TAG, "setHidden " + isHidden); 773 mUpdateMonitor.sendKeyguardVisibilityChanged(!isHidden); 774 mHandler.removeMessages(SET_HIDDEN); 775 Message msg = mHandler.obtainMessage(SET_HIDDEN, (isHidden ? 1 : 0), 0); 776 mHandler.sendMessage(msg); 777 } 778 779 /** 780 * Handles SET_HIDDEN message sent by setHidden() 781 */ 782 private void handleSetHidden(boolean isHidden) { 783 synchronized (KeyguardViewMediator.this) { 784 if (mHidden != isHidden) { 785 mHidden = isHidden; 786 updateActivityLockScreenState(); 787 adjustStatusBarLocked(); 788 } 789 } 790 } 791 792 /** 793 * Used by PhoneWindowManager to enable the keyguard due to a user activity timeout. 794 * This must be safe to call from any thread and with any window manager locks held. 795 */ 796 public void doKeyguardTimeout(Bundle options) { 797 mHandler.removeMessages(KEYGUARD_TIMEOUT); 798 Message msg = mHandler.obtainMessage(KEYGUARD_TIMEOUT, options); 799 mHandler.sendMessage(msg); 800 } 801 802 /** 803 * Given the state of the keyguard, is the input restricted? 804 * Input is restricted when the keyguard is showing, or when the keyguard 805 * was suppressed by an app that disabled the keyguard or we haven't been provisioned yet. 806 */ 807 public boolean isInputRestricted() { 808 return mShowing || mNeedToReshowWhenReenabled || !mUpdateMonitor.isDeviceProvisioned(); 809 } 810 811 private void doKeyguardLocked() { 812 doKeyguardLocked(null); 813 } 814 815 /** 816 * Enable the keyguard if the settings are appropriate. Return true if all 817 * work that will happen is done; returns false if the caller can wait for 818 * the keyguard to be shown. 819 */ 820 private void doKeyguardLocked(Bundle options) { 821 // if another app is disabling us, don't show 822 if (!mExternallyEnabled) { 823 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because externally disabled"); 824 825 // note: we *should* set mNeedToReshowWhenReenabled=true here, but that makes 826 // for an occasional ugly flicker in this situation: 827 // 1) receive a call with the screen on (no keyguard) or make a call 828 // 2) screen times out 829 // 3) user hits key to turn screen back on 830 // instead, we reenable the keyguard when we know the screen is off and the call 831 // ends (see the broadcast receiver below) 832 // TODO: clean this up when we have better support at the window manager level 833 // for apps that wish to be on top of the keyguard 834 return; 835 } 836 837 // if the keyguard is already showing, don't bother 838 if (mKeyguardViewManager.isShowing()) { 839 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because it is already showing"); 840 return; 841 } 842 843 // if the setup wizard hasn't run yet, don't show 844 final boolean requireSim = !SystemProperties.getBoolean("keyguard.no_require_sim", 845 false); 846 final boolean provisioned = mUpdateMonitor.isDeviceProvisioned(); 847 final IccCardConstants.State state = mUpdateMonitor.getSimState(); 848 final boolean lockedOrMissing = state.isPinLocked() 849 || ((state == IccCardConstants.State.ABSENT 850 || state == IccCardConstants.State.PERM_DISABLED) 851 && requireSim); 852 853 if (!lockedOrMissing && !provisioned) { 854 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because device isn't provisioned" 855 + " and the sim is not locked or missing"); 856 return; 857 } 858 859 if (mUserManager.getUsers(true).size() < 2 860 && mLockPatternUtils.isLockScreenDisabled() && !lockedOrMissing) { 861 if (DEBUG) Log.d(TAG, "doKeyguard: not showing because lockscreen is off"); 862 return; 863 } 864 865 if (DEBUG) Log.d(TAG, "doKeyguard: showing the lock screen"); 866 showLocked(options); 867 } 868 869 /** 870 * Send message to keyguard telling it to reset its state. 871 * @param options options about how to show the keyguard 872 * @see #handleReset() 873 */ 874 private void resetStateLocked(Bundle options) { 875 if (DEBUG) Log.d(TAG, "resetStateLocked"); 876 Message msg = mHandler.obtainMessage(RESET, options); 877 mHandler.sendMessage(msg); 878 } 879 880 /** 881 * Send message to keyguard telling it to verify unlock 882 * @see #handleVerifyUnlock() 883 */ 884 private void verifyUnlockLocked() { 885 if (DEBUG) Log.d(TAG, "verifyUnlockLocked"); 886 mHandler.sendEmptyMessage(VERIFY_UNLOCK); 887 } 888 889 890 /** 891 * Send a message to keyguard telling it the screen just turned on. 892 * @see #onScreenTurnedOff(int) 893 * @see #handleNotifyScreenOff 894 */ 895 private void notifyScreenOffLocked() { 896 if (DEBUG) Log.d(TAG, "notifyScreenOffLocked"); 897 mHandler.sendEmptyMessage(NOTIFY_SCREEN_OFF); 898 } 899 900 /** 901 * Send a message to keyguard telling it the screen just turned on. 902 * @see #onScreenTurnedOn() 903 * @see #handleNotifyScreenOn 904 */ 905 private void notifyScreenOnLocked(KeyguardViewManager.ShowListener showListener) { 906 if (DEBUG) Log.d(TAG, "notifyScreenOnLocked"); 907 Message msg = mHandler.obtainMessage(NOTIFY_SCREEN_ON, showListener); 908 mHandler.sendMessage(msg); 909 } 910 911 /** 912 * Send message to keyguard telling it about a wake key so it can adjust 913 * its state accordingly and then poke the wake lock when it is ready. 914 * @param keyCode The wake key. 915 * @see #handleWakeWhenReady 916 * @see #onWakeKeyWhenKeyguardShowingTq(int) 917 */ 918 private void wakeWhenReadyLocked(int keyCode) { 919 if (DBG_WAKE) Log.d(TAG, "wakeWhenReadyLocked(" + keyCode + ")"); 920 921 /** 922 * acquire the handoff lock that will keep the cpu running. this will 923 * be released once the keyguard has set itself up and poked the other wakelock 924 * in {@link #handleWakeWhenReady(int)} 925 */ 926 mWakeAndHandOff.acquire(); 927 928 Message msg = mHandler.obtainMessage(WAKE_WHEN_READY, keyCode, 0); 929 mHandler.sendMessage(msg); 930 } 931 932 /** 933 * Send message to keyguard telling it to show itself 934 * @see #handleShow() 935 */ 936 private void showLocked(Bundle options) { 937 if (DEBUG) Log.d(TAG, "showLocked"); 938 // ensure we stay awake until we are finished displaying the keyguard 939 mShowKeyguardWakeLock.acquire(); 940 Message msg = mHandler.obtainMessage(SHOW, options); 941 mHandler.sendMessage(msg); 942 } 943 944 /** 945 * Send message to keyguard telling it to hide itself 946 * @see #handleHide() 947 */ 948 private void hideLocked() { 949 if (DEBUG) Log.d(TAG, "hideLocked"); 950 Message msg = mHandler.obtainMessage(HIDE); 951 mHandler.sendMessage(msg); 952 } 953 954 public boolean isSecure() { 955 return mLockPatternUtils.isSecure() 956 || KeyguardUpdateMonitor.getInstance(mContext).isSimPinSecure(); 957 } 958 959 /** 960 * Update the newUserId. Call while holding WindowManagerService lock. 961 * NOTE: Should only be called by KeyguardViewMediator in response to the user id changing. 962 * 963 * @param newUserId The id of the incoming user. 964 */ 965 public void setCurrentUser(int newUserId) { 966 mLockPatternUtils.setCurrentUser(newUserId); 967 } 968 969 private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { 970 @Override 971 public void onReceive(Context context, Intent intent) { 972 if (DELAYED_KEYGUARD_ACTION.equals(intent.getAction())) { 973 final int sequence = intent.getIntExtra("seq", 0); 974 if (DEBUG) Log.d(TAG, "received DELAYED_KEYGUARD_ACTION with seq = " 975 + sequence + ", mDelayedShowingSequence = " + mDelayedShowingSequence); 976 synchronized (KeyguardViewMediator.this) { 977 if (mDelayedShowingSequence == sequence) { 978 // Don't play lockscreen SFX if the screen went off due to timeout. 979 mSuppressNextLockSound = true; 980 doKeyguardLocked(); 981 } 982 } 983 } 984 } 985 }; 986 987 /** 988 * When a key is received when the screen is off and the keyguard is showing, 989 * we need to decide whether to actually turn on the screen, and if so, tell 990 * the keyguard to prepare itself and poke the wake lock when it is ready. 991 * 992 * The 'Tq' suffix is per the documentation in {@link WindowManagerPolicy}. 993 * Be sure not to take any action that takes a long time; any significant 994 * action should be posted to a handler. 995 * 996 * @param keyCode The keycode of the key that woke the device 997 * @param isDocked True if the device is in the dock 998 * @return Whether we poked the wake lock (and turned the screen on) 999 */ 1000 public boolean onWakeKeyWhenKeyguardShowingTq(int keyCode, boolean isDocked) { 1001 if (DEBUG) Log.d(TAG, "onWakeKeyWhenKeyguardShowing(" + keyCode + ")"); 1002 1003 if (isWakeKeyWhenKeyguardShowing(keyCode, isDocked)) { 1004 // give the keyguard view manager a chance to adjust the state of the 1005 // keyguard based on the key that woke the device before poking 1006 // the wake lock 1007 wakeWhenReadyLocked(keyCode); 1008 return true; 1009 } else { 1010 return false; 1011 } 1012 } 1013 1014 /** 1015 * When the keyguard is showing we ignore some keys that might otherwise typically 1016 * be considered wake keys. We filter them out here. 1017 * 1018 * {@link KeyEvent#KEYCODE_POWER} is notably absent from this list because it 1019 * is always considered a wake key. 1020 */ 1021 private boolean isWakeKeyWhenKeyguardShowing(int keyCode, boolean isDocked) { 1022 switch (keyCode) { 1023 // ignore volume keys unless docked 1024 case KeyEvent.KEYCODE_VOLUME_UP: 1025 case KeyEvent.KEYCODE_VOLUME_DOWN: 1026 case KeyEvent.KEYCODE_VOLUME_MUTE: 1027 return isDocked; 1028 1029 // ignore media and camera keys 1030 case KeyEvent.KEYCODE_MUTE: 1031 case KeyEvent.KEYCODE_HEADSETHOOK: 1032 case KeyEvent.KEYCODE_MEDIA_PLAY: 1033 case KeyEvent.KEYCODE_MEDIA_PAUSE: 1034 case KeyEvent.KEYCODE_MEDIA_PLAY_PAUSE: 1035 case KeyEvent.KEYCODE_MEDIA_STOP: 1036 case KeyEvent.KEYCODE_MEDIA_NEXT: 1037 case KeyEvent.KEYCODE_MEDIA_PREVIOUS: 1038 case KeyEvent.KEYCODE_MEDIA_REWIND: 1039 case KeyEvent.KEYCODE_MEDIA_RECORD: 1040 case KeyEvent.KEYCODE_MEDIA_FAST_FORWARD: 1041 case KeyEvent.KEYCODE_CAMERA: 1042 return false; 1043 } 1044 return true; 1045 } 1046 1047 /** 1048 * When a wake motion such as an external mouse movement is received when the screen 1049 * is off and the keyguard is showing, we need to decide whether to actually turn 1050 * on the screen, and if so, tell the keyguard to prepare itself and poke the wake 1051 * lock when it is ready. 1052 * 1053 * The 'Tq' suffix is per the documentation in {@link WindowManagerPolicy}. 1054 * Be sure not to take any action that takes a long time; any significant 1055 * action should be posted to a handler. 1056 * 1057 * @return Whether we poked the wake lock (and turned the screen on) 1058 */ 1059 public boolean onWakeMotionWhenKeyguardShowingTq() { 1060 if (DEBUG) Log.d(TAG, "onWakeMotionWhenKeyguardShowing()"); 1061 1062 // give the keyguard view manager a chance to adjust the state of the 1063 // keyguard based on the key that woke the device before poking 1064 // the wake lock 1065 wakeWhenReadyLocked(KeyEvent.KEYCODE_UNKNOWN); 1066 return true; 1067 } 1068 1069 public void keyguardDone(boolean authenticated, boolean wakeup) { 1070 synchronized (this) { 1071 EventLog.writeEvent(70000, 2); 1072 if (DEBUG) Log.d(TAG, "keyguardDone(" + authenticated + ")"); 1073 Message msg = mHandler.obtainMessage(KEYGUARD_DONE); 1074 msg.arg1 = wakeup ? 1 : 0; 1075 mHandler.sendMessage(msg); 1076 1077 if (authenticated) { 1078 mUpdateMonitor.clearFailedUnlockAttempts(); 1079 } 1080 1081 if (mExitSecureCallback != null) { 1082 mExitSecureCallback.onKeyguardExitResult(authenticated); 1083 mExitSecureCallback = null; 1084 1085 if (authenticated) { 1086 // after succesfully exiting securely, no need to reshow 1087 // the keyguard when they've released the lock 1088 mExternallyEnabled = true; 1089 mNeedToReshowWhenReenabled = false; 1090 } 1091 } 1092 } 1093 } 1094 1095 /** 1096 * This handler will be associated with the policy thread, which will also 1097 * be the UI thread of the keyguard. Since the apis of the policy, and therefore 1098 * this class, can be called by other threads, any action that directly 1099 * interacts with the keyguard ui should be posted to this handler, rather 1100 * than called directly. 1101 */ 1102 private Handler mHandler = new Handler(Looper.myLooper(), null, true /*async*/) { 1103 @Override 1104 public void handleMessage(Message msg) { 1105 switch (msg.what) { 1106 case SHOW: 1107 handleShow((Bundle) msg.obj); 1108 return ; 1109 case HIDE: 1110 handleHide(); 1111 return ; 1112 case RESET: 1113 handleReset((Bundle) msg.obj); 1114 return ; 1115 case VERIFY_UNLOCK: 1116 handleVerifyUnlock(); 1117 return; 1118 case NOTIFY_SCREEN_OFF: 1119 handleNotifyScreenOff(); 1120 return; 1121 case NOTIFY_SCREEN_ON: 1122 handleNotifyScreenOn((KeyguardViewManager.ShowListener)msg.obj); 1123 return; 1124 case WAKE_WHEN_READY: 1125 handleWakeWhenReady(msg.arg1); 1126 return; 1127 case KEYGUARD_DONE: 1128 handleKeyguardDone(msg.arg1 != 0); 1129 return; 1130 case KEYGUARD_DONE_DRAWING: 1131 handleKeyguardDoneDrawing(); 1132 return; 1133 case KEYGUARD_DONE_AUTHENTICATING: 1134 keyguardDone(true, true); 1135 return; 1136 case SET_HIDDEN: 1137 handleSetHidden(msg.arg1 != 0); 1138 break; 1139 case KEYGUARD_TIMEOUT: 1140 synchronized (KeyguardViewMediator.this) { 1141 doKeyguardLocked((Bundle) msg.obj); 1142 } 1143 break; 1144 } 1145 } 1146 }; 1147 1148 /** 1149 * @see #keyguardDone 1150 * @see #KEYGUARD_DONE 1151 */ 1152 private void handleKeyguardDone(boolean wakeup) { 1153 if (DEBUG) Log.d(TAG, "handleKeyguardDone"); 1154 handleHide(); 1155 if (wakeup) { 1156 wakeUp(); 1157 } 1158 1159 sendUserPresentBroadcast(); 1160 } 1161 1162 private void sendUserPresentBroadcast() { 1163 if (!(mContext instanceof Activity)) { 1164 final UserHandle currentUser = new UserHandle(mLockPatternUtils.getCurrentUser()); 1165 mContext.sendBroadcastAsUser(mUserPresentIntent, currentUser); 1166 } 1167 } 1168 1169 /** 1170 * @see #keyguardDoneDrawing 1171 * @see #KEYGUARD_DONE_DRAWING 1172 */ 1173 private void handleKeyguardDoneDrawing() { 1174 synchronized(this) { 1175 if (false) Log.d(TAG, "handleKeyguardDoneDrawing"); 1176 if (mWaitingUntilKeyguardVisible) { 1177 if (DEBUG) Log.d(TAG, "handleKeyguardDoneDrawing: notifying mWaitingUntilKeyguardVisible"); 1178 mWaitingUntilKeyguardVisible = false; 1179 notifyAll(); 1180 1181 // there will usually be two of these sent, one as a timeout, and one 1182 // as a result of the callback, so remove any remaining messages from 1183 // the queue 1184 mHandler.removeMessages(KEYGUARD_DONE_DRAWING); 1185 } 1186 } 1187 } 1188 1189 private void playSounds(boolean locked) { 1190 // User feedback for keyguard. 1191 1192 if (mSuppressNextLockSound) { 1193 mSuppressNextLockSound = false; 1194 return; 1195 } 1196 1197 final ContentResolver cr = mContext.getContentResolver(); 1198 if (Settings.System.getInt(cr, Settings.System.LOCKSCREEN_SOUNDS_ENABLED, 1) == 1) { 1199 final int whichSound = locked 1200 ? mLockSoundId 1201 : mUnlockSoundId; 1202 mLockSounds.stop(mLockSoundStreamId); 1203 // Init mAudioManager 1204 if (mAudioManager == null) { 1205 mAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE); 1206 if (mAudioManager == null) return; 1207 mMasterStreamType = mAudioManager.getMasterStreamType(); 1208 } 1209 // If the stream is muted, don't play the sound 1210 if (mAudioManager.isStreamMute(mMasterStreamType)) return; 1211 1212 mLockSoundStreamId = mLockSounds.play(whichSound, 1213 mLockSoundVolume, mLockSoundVolume, 1/*priortiy*/, 0/*loop*/, 1.0f/*rate*/); 1214 } 1215 } 1216 1217 private void updateActivityLockScreenState() { 1218 try { 1219 ActivityManagerNative.getDefault().setLockScreenShown( 1220 mShowing && !mHidden); 1221 } catch (RemoteException e) { 1222 } 1223 } 1224 1225 /** 1226 * Handle message sent by {@link #showLocked}. 1227 * @see #SHOW 1228 */ 1229 private void handleShow(Bundle options) { 1230 synchronized (KeyguardViewMediator.this) { 1231 if (DEBUG) Log.d(TAG, "handleShow"); 1232 if (!mSystemReady) return; 1233 1234 mKeyguardViewManager.show(options); 1235 mShowing = true; 1236 updateActivityLockScreenState(); 1237 adjustStatusBarLocked(); 1238 userActivity(); 1239 try { 1240 ActivityManagerNative.getDefault().closeSystemDialogs("lock"); 1241 } catch (RemoteException e) { 1242 } 1243 1244 // Do this at the end to not slow down display of the keyguard. 1245 playSounds(true); 1246 1247 mShowKeyguardWakeLock.release(); 1248 } 1249 } 1250 1251 /** 1252 * Handle message sent by {@link #hideLocked()} 1253 * @see #HIDE 1254 */ 1255 private void handleHide() { 1256 synchronized (KeyguardViewMediator.this) { 1257 if (DEBUG) Log.d(TAG, "handleHide"); 1258 if (mWakeAndHandOff.isHeld()) { 1259 Log.w(TAG, "attempt to hide the keyguard while waking, ignored"); 1260 return; 1261 } 1262 1263 // only play "unlock" noises if not on a call (since the incall UI 1264 // disables the keyguard) 1265 if (TelephonyManager.EXTRA_STATE_IDLE.equals(mPhoneState)) { 1266 playSounds(false); 1267 } 1268 1269 mKeyguardViewManager.hide(); 1270 mShowing = false; 1271 updateActivityLockScreenState(); 1272 adjustStatusBarLocked(); 1273 } 1274 } 1275 1276 private void adjustStatusBarLocked() { 1277 if (mStatusBarManager == null) { 1278 mStatusBarManager = (StatusBarManager) 1279 mContext.getSystemService(Context.STATUS_BAR_SERVICE); 1280 } 1281 if (mStatusBarManager == null) { 1282 Log.w(TAG, "Could not get status bar manager"); 1283 } else { 1284 if (mShowLockIcon) { 1285 // Give feedback to user when secure keyguard is active and engaged 1286 if (mShowing && isSecure()) { 1287 if (!mShowingLockIcon) { 1288 String contentDescription = mContext.getString( 1289 com.android.internal.R.string.status_bar_device_locked); 1290 mStatusBarManager.setIcon("secure", 1291 com.android.internal.R.drawable.stat_sys_secure, 0, 1292 contentDescription); 1293 mShowingLockIcon = true; 1294 } 1295 } else { 1296 if (mShowingLockIcon) { 1297 mStatusBarManager.removeIcon("secure"); 1298 mShowingLockIcon = false; 1299 } 1300 } 1301 } 1302 1303 // Disable aspects of the system/status/navigation bars that must not be re-enabled by 1304 // windows that appear on top, ever 1305 int flags = StatusBarManager.DISABLE_NONE; 1306 if (mShowing) { 1307 // Permanently disable components not available when keyguard is enabled 1308 // (like recents). Temporary enable/disable (e.g. the "back" button) are 1309 // done in KeyguardHostView. 1310 flags |= StatusBarManager.DISABLE_RECENT; 1311 if (isSecure() || !ENABLE_INSECURE_STATUS_BAR_EXPAND) { 1312 // showing secure lockscreen; disable expanding. 1313 flags |= StatusBarManager.DISABLE_EXPAND; 1314 } 1315 if (isSecure()) { 1316 // showing secure lockscreen; disable ticker. 1317 flags |= StatusBarManager.DISABLE_NOTIFICATION_TICKER; 1318 } 1319 } 1320 1321 if (DEBUG) { 1322 Log.d(TAG, "adjustStatusBarLocked: mShowing=" + mShowing + " mHidden=" + mHidden 1323 + " isSecure=" + isSecure() + " --> flags=0x" + Integer.toHexString(flags)); 1324 } 1325 1326 if (!(mContext instanceof Activity)) { 1327 mStatusBarManager.disable(flags); 1328 } 1329 } 1330 } 1331 1332 /** 1333 * Handle message sent by {@link #wakeWhenReadyLocked(int)} 1334 * @param keyCode The key that woke the device. 1335 * @see #WAKE_WHEN_READY 1336 */ 1337 private void handleWakeWhenReady(int keyCode) { 1338 synchronized (KeyguardViewMediator.this) { 1339 if (DBG_WAKE) Log.d(TAG, "handleWakeWhenReady(" + keyCode + ")"); 1340 1341 // this should result in a call to 'poke wakelock' which will set a timeout 1342 // on releasing the wakelock 1343 if (!mKeyguardViewManager.wakeWhenReadyTq(keyCode)) { 1344 // poke wakelock ourselves if keyguard is no longer active 1345 Log.w(TAG, "mKeyguardViewManager.wakeWhenReadyTq did not poke wake lock, so poke it ourselves"); 1346 userActivity(); 1347 } 1348 1349 /** 1350 * Now that the keyguard is ready and has poked the wake lock, we can 1351 * release the handoff wakelock 1352 */ 1353 mWakeAndHandOff.release(); 1354 } 1355 } 1356 1357 /** 1358 * Handle message sent by {@link #resetStateLocked(Bundle)} 1359 * @see #RESET 1360 */ 1361 private void handleReset(Bundle options) { 1362 synchronized (KeyguardViewMediator.this) { 1363 if (DEBUG) Log.d(TAG, "handleReset"); 1364 mKeyguardViewManager.reset(options); 1365 } 1366 } 1367 1368 /** 1369 * Handle message sent by {@link #verifyUnlock} 1370 * @see #VERIFY_UNLOCK 1371 */ 1372 private void handleVerifyUnlock() { 1373 synchronized (KeyguardViewMediator.this) { 1374 if (DEBUG) Log.d(TAG, "handleVerifyUnlock"); 1375 mKeyguardViewManager.verifyUnlock(); 1376 mShowing = true; 1377 updateActivityLockScreenState(); 1378 } 1379 } 1380 1381 /** 1382 * Handle message sent by {@link #notifyScreenOffLocked()} 1383 * @see #NOTIFY_SCREEN_OFF 1384 */ 1385 private void handleNotifyScreenOff() { 1386 synchronized (KeyguardViewMediator.this) { 1387 if (DEBUG) Log.d(TAG, "handleNotifyScreenOff"); 1388 mKeyguardViewManager.onScreenTurnedOff(); 1389 } 1390 } 1391 1392 /** 1393 * Handle message sent by {@link #notifyScreenOnLocked()} 1394 * @see #NOTIFY_SCREEN_ON 1395 */ 1396 private void handleNotifyScreenOn(KeyguardViewManager.ShowListener showListener) { 1397 synchronized (KeyguardViewMediator.this) { 1398 if (DEBUG) Log.d(TAG, "handleNotifyScreenOn"); 1399 mKeyguardViewManager.onScreenTurnedOn(showListener); 1400 } 1401 } 1402 1403} 1404