KeyguardUpdateMonitor.java revision 43a372f38ad642f86047e8112e3d43edb7300439
1/* 2 * Copyright (C) 2008 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17package com.android.keyguard; 18 19import android.app.ActivityManagerNative; 20import android.app.IUserSwitchObserver; 21import android.app.PendingIntent; 22import android.app.admin.DevicePolicyManager; 23import android.content.BroadcastReceiver; 24import android.content.Context; 25import android.content.Intent; 26import android.content.IntentFilter; 27import android.database.ContentObserver; 28import android.graphics.Bitmap; 29 30import static android.os.BatteryManager.BATTERY_STATUS_FULL; 31import static android.os.BatteryManager.BATTERY_STATUS_UNKNOWN; 32import static android.os.BatteryManager.BATTERY_HEALTH_UNKNOWN; 33import static android.os.BatteryManager.EXTRA_STATUS; 34import static android.os.BatteryManager.EXTRA_PLUGGED; 35import static android.os.BatteryManager.EXTRA_LEVEL; 36import static android.os.BatteryManager.EXTRA_HEALTH; 37import android.media.AudioManager; 38import android.media.IRemoteControlDisplay; 39import android.os.BatteryManager; 40import android.os.Bundle; 41import android.os.Handler; 42import android.os.IRemoteCallback; 43import android.os.Message; 44import android.os.RemoteException; 45import android.os.UserHandle; 46import android.provider.Settings; 47 48import com.android.internal.telephony.IccCardConstants; 49import com.android.internal.telephony.TelephonyIntents; 50 51import android.telephony.TelephonyManager; 52import android.util.Log; 53import com.google.android.collect.Lists; 54 55import java.lang.ref.WeakReference; 56import java.util.ArrayList; 57 58/** 59 * Watches for updates that may be interesting to the keyguard, and provides 60 * the up to date information as well as a registration for callbacks that care 61 * to be updated. 62 * 63 * Note: under time crunch, this has been extended to include some stuff that 64 * doesn't really belong here. see {@link #handleBatteryUpdate} where it shutdowns 65 * the device, and {@link #getFailedUnlockAttempts()}, {@link #reportFailedAttempt()} 66 * and {@link #clearFailedUnlockAttempts()}. Maybe we should rename this 'KeyguardContext'... 67 */ 68public class KeyguardUpdateMonitor { 69 70 private static final String TAG = "KeyguardUpdateMonitor"; 71 private static final boolean DEBUG = false; 72 private static final boolean DEBUG_SIM_STATES = DEBUG || false; 73 private static final int FAILED_BIOMETRIC_UNLOCK_ATTEMPTS_BEFORE_BACKUP = 3; 74 private static final int LOW_BATTERY_THRESHOLD = 20; 75 76 // Callback messages 77 private static final int MSG_TIME_UPDATE = 301; 78 private static final int MSG_BATTERY_UPDATE = 302; 79 private static final int MSG_CARRIER_INFO_UPDATE = 303; 80 private static final int MSG_SIM_STATE_CHANGE = 304; 81 private static final int MSG_RINGER_MODE_CHANGED = 305; 82 private static final int MSG_PHONE_STATE_CHANGED = 306; 83 private static final int MSG_CLOCK_VISIBILITY_CHANGED = 307; 84 private static final int MSG_DEVICE_PROVISIONED = 308; 85 private static final int MSG_DPM_STATE_CHANGED = 309; 86 private static final int MSG_USER_SWITCHING = 310; 87 private static final int MSG_USER_REMOVED = 311; 88 private static final int MSG_KEYGUARD_VISIBILITY_CHANGED = 312; 89 protected static final int MSG_BOOT_COMPLETED = 313; 90 private static final int MSG_USER_SWITCH_COMPLETE = 314; 91 private static final int MSG_SET_CURRENT_CLIENT_ID = 315; 92 protected static final int MSG_SET_PLAYBACK_STATE = 316; 93 protected static final int MSG_USER_INFO_CHANGED = 317; 94 protected static final int MSG_REPORT_EMERGENCY_CALL_ACTION = 318; 95 96 97 private static KeyguardUpdateMonitor sInstance; 98 99 private final Context mContext; 100 101 // Telephony state 102 private IccCardConstants.State mSimState = IccCardConstants.State.READY; 103 private CharSequence mTelephonyPlmn; 104 private CharSequence mTelephonySpn; 105 private int mRingMode; 106 private int mPhoneState; 107 private boolean mKeyguardIsVisible; 108 private boolean mBootCompleted; 109 110 // Device provisioning state 111 private boolean mDeviceProvisioned; 112 113 // Battery status 114 private BatteryStatus mBatteryStatus; 115 116 // Password attempts 117 private int mFailedAttempts = 0; 118 private int mFailedBiometricUnlockAttempts = 0; 119 120 private boolean mAlternateUnlockEnabled; 121 122 private boolean mClockVisible; 123 124 private final ArrayList<WeakReference<KeyguardUpdateMonitorCallback>> 125 mCallbacks = Lists.newArrayList(); 126 private ContentObserver mDeviceProvisionedObserver; 127 128 private boolean mSwitchingUser; 129 130 private final Handler mHandler = new Handler() { 131 @Override 132 public void handleMessage(Message msg) { 133 switch (msg.what) { 134 case MSG_TIME_UPDATE: 135 handleTimeUpdate(); 136 break; 137 case MSG_BATTERY_UPDATE: 138 handleBatteryUpdate((BatteryStatus) msg.obj); 139 break; 140 case MSG_CARRIER_INFO_UPDATE: 141 handleCarrierInfoUpdate(); 142 break; 143 case MSG_SIM_STATE_CHANGE: 144 handleSimStateChange((SimArgs) msg.obj); 145 break; 146 case MSG_RINGER_MODE_CHANGED: 147 handleRingerModeChange(msg.arg1); 148 break; 149 case MSG_PHONE_STATE_CHANGED: 150 handlePhoneStateChanged((String)msg.obj); 151 break; 152 case MSG_CLOCK_VISIBILITY_CHANGED: 153 handleClockVisibilityChanged(); 154 break; 155 case MSG_DEVICE_PROVISIONED: 156 handleDeviceProvisioned(); 157 break; 158 case MSG_DPM_STATE_CHANGED: 159 handleDevicePolicyManagerStateChanged(); 160 break; 161 case MSG_USER_SWITCHING: 162 handleUserSwitching(msg.arg1, (IRemoteCallback)msg.obj); 163 break; 164 case MSG_USER_SWITCH_COMPLETE: 165 handleUserSwitchComplete(msg.arg1); 166 break; 167 case MSG_USER_REMOVED: 168 handleUserRemoved(msg.arg1); 169 break; 170 case MSG_KEYGUARD_VISIBILITY_CHANGED: 171 handleKeyguardVisibilityChanged(msg.arg1); 172 break; 173 case MSG_BOOT_COMPLETED: 174 handleBootCompleted(); 175 break; 176 case MSG_SET_CURRENT_CLIENT_ID: 177 handleSetGenerationId(msg.arg1, msg.arg2 != 0, (PendingIntent) msg.obj); 178 break; 179 case MSG_SET_PLAYBACK_STATE: 180 handleSetPlaybackState(msg.arg1, msg.arg2, (Long) msg.obj); 181 break; 182 case MSG_USER_INFO_CHANGED: 183 handleUserInfoChanged(msg.arg1); 184 break; 185 case MSG_REPORT_EMERGENCY_CALL_ACTION: 186 handleReportEmergencyCallAction(); 187 break; 188 } 189 } 190 }; 191 192 private AudioManager mAudioManager; 193 194 static class DisplayClientState { 195 public int clientGeneration; 196 public boolean clearing; 197 public PendingIntent intent; 198 public int playbackState; 199 public long playbackEventTime; 200 } 201 202 private DisplayClientState mDisplayClientState = new DisplayClientState(); 203 204 /** 205 * This currently implements the bare minimum required to enable showing and hiding 206 * KeyguardTransportControl. There's a lot of client state to maintain which is why 207 * KeyguardTransportControl maintains an independent connection while it's showing. 208 */ 209 private final IRemoteControlDisplay.Stub mRemoteControlDisplay = 210 new IRemoteControlDisplay.Stub() { 211 212 public void setPlaybackState(int generationId, int state, long stateChangeTimeMs, 213 long currentPosMs, float speed) { 214 Message msg = mHandler.obtainMessage(MSG_SET_PLAYBACK_STATE, 215 generationId, state, stateChangeTimeMs); 216 mHandler.sendMessage(msg); 217 } 218 219 public void setMetadata(int generationId, Bundle metadata) { 220 221 } 222 223 public void setTransportControlInfo(int generationId, int flags, int posCapabilities) { 224 225 } 226 227 public void setArtwork(int generationId, Bitmap bitmap) { 228 229 } 230 231 public void setAllMetadata(int generationId, Bundle metadata, Bitmap bitmap) { 232 233 } 234 235 public void setCurrentClientId(int clientGeneration, PendingIntent mediaIntent, 236 boolean clearing) throws RemoteException { 237 Message msg = mHandler.obtainMessage(MSG_SET_CURRENT_CLIENT_ID, 238 clientGeneration, (clearing ? 1 : 0), mediaIntent); 239 mHandler.sendMessage(msg); 240 } 241 }; 242 243 private final BroadcastReceiver mBroadcastReceiver = new BroadcastReceiver() { 244 245 public void onReceive(Context context, Intent intent) { 246 final String action = intent.getAction(); 247 if (DEBUG) Log.d(TAG, "received broadcast " + action); 248 249 if (Intent.ACTION_TIME_TICK.equals(action) 250 || Intent.ACTION_TIME_CHANGED.equals(action) 251 || Intent.ACTION_TIMEZONE_CHANGED.equals(action)) { 252 mHandler.sendEmptyMessage(MSG_TIME_UPDATE); 253 } else if (TelephonyIntents.SPN_STRINGS_UPDATED_ACTION.equals(action)) { 254 mTelephonyPlmn = getTelephonyPlmnFrom(intent); 255 mTelephonySpn = getTelephonySpnFrom(intent); 256 mHandler.sendEmptyMessage(MSG_CARRIER_INFO_UPDATE); 257 } else if (Intent.ACTION_BATTERY_CHANGED.equals(action)) { 258 final int status = intent.getIntExtra(EXTRA_STATUS, BATTERY_STATUS_UNKNOWN); 259 final int plugged = intent.getIntExtra(EXTRA_PLUGGED, 0); 260 final int level = intent.getIntExtra(EXTRA_LEVEL, 0); 261 final int health = intent.getIntExtra(EXTRA_HEALTH, BATTERY_HEALTH_UNKNOWN); 262 final Message msg = mHandler.obtainMessage( 263 MSG_BATTERY_UPDATE, new BatteryStatus(status, level, plugged, health)); 264 mHandler.sendMessage(msg); 265 } else if (TelephonyIntents.ACTION_SIM_STATE_CHANGED.equals(action)) { 266 if (DEBUG_SIM_STATES) { 267 Log.v(TAG, "action " + action + " state" + 268 intent.getStringExtra(IccCardConstants.INTENT_KEY_ICC_STATE)); 269 } 270 mHandler.sendMessage(mHandler.obtainMessage( 271 MSG_SIM_STATE_CHANGE, SimArgs.fromIntent(intent))); 272 } else if (AudioManager.RINGER_MODE_CHANGED_ACTION.equals(action)) { 273 mHandler.sendMessage(mHandler.obtainMessage(MSG_RINGER_MODE_CHANGED, 274 intent.getIntExtra(AudioManager.EXTRA_RINGER_MODE, -1), 0)); 275 } else if (TelephonyManager.ACTION_PHONE_STATE_CHANGED.equals(action)) { 276 String state = intent.getStringExtra(TelephonyManager.EXTRA_STATE); 277 mHandler.sendMessage(mHandler.obtainMessage(MSG_PHONE_STATE_CHANGED, state)); 278 } else if (DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED 279 .equals(action)) { 280 mHandler.sendEmptyMessage(MSG_DPM_STATE_CHANGED); 281 } else if (Intent.ACTION_USER_REMOVED.equals(action)) { 282 mHandler.sendMessage(mHandler.obtainMessage(MSG_USER_REMOVED, 283 intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 0), 0)); 284 } else if (Intent.ACTION_BOOT_COMPLETED.equals(action)) { 285 dispatchBootCompleted(); 286 } 287 } 288 }; 289 290 private final BroadcastReceiver mBroadcastAllReceiver = new BroadcastReceiver() { 291 292 public void onReceive(Context context, Intent intent) { 293 final String action = intent.getAction(); 294 if (Intent.ACTION_USER_INFO_CHANGED.equals(action)) { 295 mHandler.sendMessage(mHandler.obtainMessage(MSG_USER_INFO_CHANGED, 296 intent.getIntExtra(Intent.EXTRA_USER_HANDLE, getSendingUserId()), 0)); 297 } 298 } 299 }; 300 301 /** 302 * When we receive a 303 * {@link com.android.internal.telephony.TelephonyIntents#ACTION_SIM_STATE_CHANGED} broadcast, 304 * and then pass a result via our handler to {@link KeyguardUpdateMonitor#handleSimStateChange}, 305 * we need a single object to pass to the handler. This class helps decode 306 * the intent and provide a {@link SimCard.State} result. 307 */ 308 private static class SimArgs { 309 public final IccCardConstants.State simState; 310 311 SimArgs(IccCardConstants.State state) { 312 simState = state; 313 } 314 315 static SimArgs fromIntent(Intent intent) { 316 IccCardConstants.State state; 317 if (!TelephonyIntents.ACTION_SIM_STATE_CHANGED.equals(intent.getAction())) { 318 throw new IllegalArgumentException("only handles intent ACTION_SIM_STATE_CHANGED"); 319 } 320 String stateExtra = intent.getStringExtra(IccCardConstants.INTENT_KEY_ICC_STATE); 321 if (IccCardConstants.INTENT_VALUE_ICC_ABSENT.equals(stateExtra)) { 322 final String absentReason = intent 323 .getStringExtra(IccCardConstants.INTENT_KEY_LOCKED_REASON); 324 325 if (IccCardConstants.INTENT_VALUE_ABSENT_ON_PERM_DISABLED.equals( 326 absentReason)) { 327 state = IccCardConstants.State.PERM_DISABLED; 328 } else { 329 state = IccCardConstants.State.ABSENT; 330 } 331 } else if (IccCardConstants.INTENT_VALUE_ICC_READY.equals(stateExtra)) { 332 state = IccCardConstants.State.READY; 333 } else if (IccCardConstants.INTENT_VALUE_ICC_LOCKED.equals(stateExtra)) { 334 final String lockedReason = intent 335 .getStringExtra(IccCardConstants.INTENT_KEY_LOCKED_REASON); 336 if (IccCardConstants.INTENT_VALUE_LOCKED_ON_PIN.equals(lockedReason)) { 337 state = IccCardConstants.State.PIN_REQUIRED; 338 } else if (IccCardConstants.INTENT_VALUE_LOCKED_ON_PUK.equals(lockedReason)) { 339 state = IccCardConstants.State.PUK_REQUIRED; 340 } else { 341 state = IccCardConstants.State.UNKNOWN; 342 } 343 } else if (IccCardConstants.INTENT_VALUE_LOCKED_NETWORK.equals(stateExtra)) { 344 state = IccCardConstants.State.NETWORK_LOCKED; 345 } else if (IccCardConstants.INTENT_VALUE_ICC_LOADED.equals(stateExtra) 346 || IccCardConstants.INTENT_VALUE_ICC_IMSI.equals(stateExtra)) { 347 // This is required because telephony doesn't return to "READY" after 348 // these state transitions. See bug 7197471. 349 state = IccCardConstants.State.READY; 350 } else { 351 state = IccCardConstants.State.UNKNOWN; 352 } 353 return new SimArgs(state); 354 } 355 356 public String toString() { 357 return simState.toString(); 358 } 359 } 360 361 /* package */ static class BatteryStatus { 362 public final int status; 363 public final int level; 364 public final int plugged; 365 public final int health; 366 public BatteryStatus(int status, int level, int plugged, int health) { 367 this.status = status; 368 this.level = level; 369 this.plugged = plugged; 370 this.health = health; 371 } 372 373 /** 374 * Determine whether the device is plugged in (USB, power, or wireless). 375 * @return true if the device is plugged in. 376 */ 377 boolean isPluggedIn() { 378 return plugged == BatteryManager.BATTERY_PLUGGED_AC 379 || plugged == BatteryManager.BATTERY_PLUGGED_USB 380 || plugged == BatteryManager.BATTERY_PLUGGED_WIRELESS; 381 } 382 383 /** 384 * Whether or not the device is charged. Note that some devices never return 100% for 385 * battery level, so this allows either battery level or status to determine if the 386 * battery is charged. 387 * @return true if the device is charged 388 */ 389 public boolean isCharged() { 390 return status == BATTERY_STATUS_FULL || level >= 100; 391 } 392 393 /** 394 * Whether battery is low and needs to be charged. 395 * @return true if battery is low 396 */ 397 public boolean isBatteryLow() { 398 return level < LOW_BATTERY_THRESHOLD; 399 } 400 401 } 402 403 public static KeyguardUpdateMonitor getInstance(Context context) { 404 if (sInstance == null) { 405 sInstance = new KeyguardUpdateMonitor(context); 406 } 407 return sInstance; 408 } 409 410 /** 411 * IMPORTANT: Must be called from UI thread. 412 */ 413 public void dispatchSetBackground(Bitmap bmp) { 414 if (DEBUG) Log.d(TAG, "dispatchSetBackground"); 415 final int count = mCallbacks.size(); 416 for (int i = 0; i < count; i++) { 417 KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get(); 418 if (cb != null) { 419 cb.onSetBackground(bmp); 420 } 421 } 422 } 423 424 protected void handleSetGenerationId(int clientGeneration, boolean clearing, PendingIntent p) { 425 mDisplayClientState.clientGeneration = clientGeneration; 426 mDisplayClientState.clearing = clearing; 427 mDisplayClientState.intent = p; 428 if (DEBUG) 429 Log.v(TAG, "handleSetGenerationId(g=" + clientGeneration + ", clear=" + clearing + ")"); 430 for (int i = 0; i < mCallbacks.size(); i++) { 431 KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get(); 432 if (cb != null) { 433 cb.onMusicClientIdChanged(clientGeneration, clearing, p); 434 } 435 } 436 } 437 438 protected void handleSetPlaybackState(int generationId, int playbackState, long eventTime) { 439 if (DEBUG) 440 Log.v(TAG, "handleSetPlaybackState(gen=" + generationId 441 + ", state=" + playbackState + ", t=" + eventTime + ")"); 442 mDisplayClientState.playbackState = playbackState; 443 mDisplayClientState.playbackEventTime = eventTime; 444 if (generationId == mDisplayClientState.clientGeneration) { 445 for (int i = 0; i < mCallbacks.size(); i++) { 446 KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get(); 447 if (cb != null) { 448 cb.onMusicPlaybackStateChanged(playbackState, eventTime); 449 } 450 } 451 } else { 452 Log.w(TAG, "Ignoring generation id " + generationId + " because it's not current"); 453 } 454 } 455 456 private void handleUserInfoChanged(int userId) { 457 for (int i = 0; i < mCallbacks.size(); i++) { 458 KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get(); 459 if (cb != null) { 460 cb.onUserInfoChanged(userId); 461 } 462 } 463 } 464 465 private KeyguardUpdateMonitor(Context context) { 466 mContext = context; 467 468 mDeviceProvisioned = isDeviceProvisionedInSettingsDb(); 469 // Since device can't be un-provisioned, we only need to register a content observer 470 // to update mDeviceProvisioned when we are... 471 if (!mDeviceProvisioned) { 472 watchForDeviceProvisioning(); 473 } 474 475 // Take a guess at initial SIM state, battery status and PLMN until we get an update 476 mSimState = IccCardConstants.State.NOT_READY; 477 mBatteryStatus = new BatteryStatus(BATTERY_STATUS_UNKNOWN, 100, 0, 0); 478 mTelephonyPlmn = getDefaultPlmn(); 479 480 // Watch for interesting updates 481 final IntentFilter filter = new IntentFilter(); 482 filter.addAction(Intent.ACTION_TIME_TICK); 483 filter.addAction(Intent.ACTION_TIME_CHANGED); 484 filter.addAction(Intent.ACTION_BATTERY_CHANGED); 485 filter.addAction(Intent.ACTION_TIMEZONE_CHANGED); 486 filter.addAction(TelephonyIntents.ACTION_SIM_STATE_CHANGED); 487 filter.addAction(TelephonyManager.ACTION_PHONE_STATE_CHANGED); 488 filter.addAction(TelephonyIntents.SPN_STRINGS_UPDATED_ACTION); 489 filter.addAction(AudioManager.RINGER_MODE_CHANGED_ACTION); 490 filter.addAction(DevicePolicyManager.ACTION_DEVICE_POLICY_MANAGER_STATE_CHANGED); 491 filter.addAction(Intent.ACTION_USER_REMOVED); 492 context.registerReceiver(mBroadcastReceiver, filter); 493 494 final IntentFilter bootCompleteFilter = new IntentFilter(); 495 bootCompleteFilter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY); 496 bootCompleteFilter.addAction(Intent.ACTION_BOOT_COMPLETED); 497 context.registerReceiver(mBroadcastReceiver, bootCompleteFilter); 498 499 final IntentFilter userInfoFilter = new IntentFilter(Intent.ACTION_USER_INFO_CHANGED); 500 context.registerReceiverAsUser(mBroadcastAllReceiver, UserHandle.ALL, userInfoFilter, 501 null, null); 502 503 try { 504 ActivityManagerNative.getDefault().registerUserSwitchObserver( 505 new IUserSwitchObserver.Stub() { 506 @Override 507 public void onUserSwitching(int newUserId, IRemoteCallback reply) { 508 mHandler.sendMessage(mHandler.obtainMessage(MSG_USER_SWITCHING, 509 newUserId, 0, reply)); 510 mSwitchingUser = true; 511 } 512 @Override 513 public void onUserSwitchComplete(int newUserId) throws RemoteException { 514 mHandler.sendMessage(mHandler.obtainMessage(MSG_USER_SWITCH_COMPLETE, 515 newUserId)); 516 mSwitchingUser = false; 517 } 518 }); 519 } catch (RemoteException e) { 520 // TODO Auto-generated catch block 521 e.printStackTrace(); 522 } 523 } 524 525 private boolean isDeviceProvisionedInSettingsDb() { 526 return Settings.Global.getInt(mContext.getContentResolver(), 527 Settings.Global.DEVICE_PROVISIONED, 0) != 0; 528 } 529 530 private void watchForDeviceProvisioning() { 531 mDeviceProvisionedObserver = new ContentObserver(mHandler) { 532 @Override 533 public void onChange(boolean selfChange) { 534 super.onChange(selfChange); 535 mDeviceProvisioned = isDeviceProvisionedInSettingsDb(); 536 if (mDeviceProvisioned) { 537 mHandler.sendEmptyMessage(MSG_DEVICE_PROVISIONED); 538 } 539 if (DEBUG) Log.d(TAG, "DEVICE_PROVISIONED state = " + mDeviceProvisioned); 540 } 541 }; 542 543 mContext.getContentResolver().registerContentObserver( 544 Settings.Global.getUriFor(Settings.Global.DEVICE_PROVISIONED), 545 false, mDeviceProvisionedObserver); 546 547 // prevent a race condition between where we check the flag and where we register the 548 // observer by grabbing the value once again... 549 boolean provisioned = isDeviceProvisionedInSettingsDb(); 550 if (provisioned != mDeviceProvisioned) { 551 mDeviceProvisioned = provisioned; 552 if (mDeviceProvisioned) { 553 mHandler.sendEmptyMessage(MSG_DEVICE_PROVISIONED); 554 } 555 } 556 } 557 558 /** 559 * Handle {@link #MSG_DPM_STATE_CHANGED} 560 */ 561 protected void handleDevicePolicyManagerStateChanged() { 562 for (int i = mCallbacks.size() - 1; i >= 0; i--) { 563 KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get(); 564 if (cb != null) { 565 cb.onDevicePolicyManagerStateChanged(); 566 } 567 } 568 } 569 570 /** 571 * Handle {@link #MSG_USER_SWITCHING} 572 */ 573 protected void handleUserSwitching(int userId, IRemoteCallback reply) { 574 for (int i = 0; i < mCallbacks.size(); i++) { 575 KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get(); 576 if (cb != null) { 577 cb.onUserSwitching(userId); 578 } 579 } 580 try { 581 reply.sendResult(null); 582 } catch (RemoteException e) { 583 } 584 } 585 586 /** 587 * Handle {@link #MSG_USER_SWITCH_COMPLETE} 588 */ 589 protected void handleUserSwitchComplete(int userId) { 590 for (int i = 0; i < mCallbacks.size(); i++) { 591 KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get(); 592 if (cb != null) { 593 cb.onUserSwitchComplete(userId); 594 } 595 } 596 } 597 598 /** 599 * This is exposed since {@link Intent#ACTION_BOOT_COMPLETED} is not sticky. If 600 * keyguard crashes sometime after boot, then it will never receive this 601 * broadcast and hence not handle the event. This method is ultimately called by 602 * PhoneWindowManager in this case. 603 */ 604 protected void dispatchBootCompleted() { 605 if (!mBootCompleted) { 606 mHandler.sendEmptyMessage(MSG_BOOT_COMPLETED); 607 } 608 } 609 610 /** 611 * Handle {@link #MSG_BOOT_COMPLETED} 612 */ 613 protected void handleBootCompleted() { 614 mBootCompleted = true; 615 mAudioManager = new AudioManager(mContext); 616 mAudioManager.registerRemoteControlDisplay(mRemoteControlDisplay); 617 for (int i = 0; i < mCallbacks.size(); i++) { 618 KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get(); 619 if (cb != null) { 620 cb.onBootCompleted(); 621 } 622 } 623 } 624 625 /** 626 * We need to store this state in the KeyguardUpdateMonitor since this class will not be 627 * destroyed. 628 */ 629 public boolean hasBootCompleted() { 630 return mBootCompleted; 631 } 632 633 /** 634 * Handle {@link #MSG_USER_REMOVED} 635 */ 636 protected void handleUserRemoved(int userId) { 637 for (int i = 0; i < mCallbacks.size(); i++) { 638 KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get(); 639 if (cb != null) { 640 cb.onUserRemoved(userId); 641 } 642 } 643 } 644 645 /** 646 * Handle {@link #MSG_DEVICE_PROVISIONED} 647 */ 648 protected void handleDeviceProvisioned() { 649 for (int i = 0; i < mCallbacks.size(); i++) { 650 KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get(); 651 if (cb != null) { 652 cb.onDeviceProvisioned(); 653 } 654 } 655 if (mDeviceProvisionedObserver != null) { 656 // We don't need the observer anymore... 657 mContext.getContentResolver().unregisterContentObserver(mDeviceProvisionedObserver); 658 mDeviceProvisionedObserver = null; 659 } 660 } 661 662 /** 663 * Handle {@link #MSG_PHONE_STATE_CHANGED} 664 */ 665 protected void handlePhoneStateChanged(String newState) { 666 if (DEBUG) Log.d(TAG, "handlePhoneStateChanged(" + newState + ")"); 667 if (TelephonyManager.EXTRA_STATE_IDLE.equals(newState)) { 668 mPhoneState = TelephonyManager.CALL_STATE_IDLE; 669 } else if (TelephonyManager.EXTRA_STATE_OFFHOOK.equals(newState)) { 670 mPhoneState = TelephonyManager.CALL_STATE_OFFHOOK; 671 } else if (TelephonyManager.EXTRA_STATE_RINGING.equals(newState)) { 672 mPhoneState = TelephonyManager.CALL_STATE_RINGING; 673 } 674 for (int i = 0; i < mCallbacks.size(); i++) { 675 KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get(); 676 if (cb != null) { 677 cb.onPhoneStateChanged(mPhoneState); 678 } 679 } 680 } 681 682 /** 683 * Handle {@link #MSG_RINGER_MODE_CHANGED} 684 */ 685 protected void handleRingerModeChange(int mode) { 686 if (DEBUG) Log.d(TAG, "handleRingerModeChange(" + mode + ")"); 687 mRingMode = mode; 688 for (int i = 0; i < mCallbacks.size(); i++) { 689 KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get(); 690 if (cb != null) { 691 cb.onRingerModeChanged(mode); 692 } 693 } 694 } 695 696 /** 697 * Handle {@link #MSG_TIME_UPDATE} 698 */ 699 private void handleTimeUpdate() { 700 if (DEBUG) Log.d(TAG, "handleTimeUpdate"); 701 for (int i = 0; i < mCallbacks.size(); i++) { 702 KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get(); 703 if (cb != null) { 704 cb.onTimeChanged(); 705 } 706 } 707 } 708 709 /** 710 * Handle {@link #MSG_BATTERY_UPDATE} 711 */ 712 private void handleBatteryUpdate(BatteryStatus status) { 713 if (DEBUG) Log.d(TAG, "handleBatteryUpdate"); 714 final boolean batteryUpdateInteresting = isBatteryUpdateInteresting(mBatteryStatus, status); 715 mBatteryStatus = status; 716 if (batteryUpdateInteresting) { 717 for (int i = 0; i < mCallbacks.size(); i++) { 718 KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get(); 719 if (cb != null) { 720 cb.onRefreshBatteryInfo(status); 721 } 722 } 723 } 724 } 725 726 /** 727 * Handle {@link #MSG_CARRIER_INFO_UPDATE} 728 */ 729 private void handleCarrierInfoUpdate() { 730 if (DEBUG) Log.d(TAG, "handleCarrierInfoUpdate: plmn = " + mTelephonyPlmn 731 + ", spn = " + mTelephonySpn); 732 733 for (int i = 0; i < mCallbacks.size(); i++) { 734 KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get(); 735 if (cb != null) { 736 cb.onRefreshCarrierInfo(mTelephonyPlmn, mTelephonySpn); 737 } 738 } 739 } 740 741 /** 742 * Handle {@link #MSG_SIM_STATE_CHANGE} 743 */ 744 private void handleSimStateChange(SimArgs simArgs) { 745 final IccCardConstants.State state = simArgs.simState; 746 747 if (DEBUG) { 748 Log.d(TAG, "handleSimStateChange: intentValue = " + simArgs + " " 749 + "state resolved to " + state.toString()); 750 } 751 752 if (state != IccCardConstants.State.UNKNOWN && state != mSimState) { 753 mSimState = state; 754 for (int i = 0; i < mCallbacks.size(); i++) { 755 KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get(); 756 if (cb != null) { 757 cb.onSimStateChanged(state); 758 } 759 } 760 } 761 } 762 763 /** 764 * Handle {@link #MSG_CLOCK_VISIBILITY_CHANGED} 765 */ 766 private void handleClockVisibilityChanged() { 767 if (DEBUG) Log.d(TAG, "handleClockVisibilityChanged()"); 768 for (int i = 0; i < mCallbacks.size(); i++) { 769 KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get(); 770 if (cb != null) { 771 cb.onClockVisibilityChanged(); 772 } 773 } 774 } 775 776 /** 777 * Handle {@link #MSG_KEYGUARD_VISIBILITY_CHANGED} 778 */ 779 private void handleKeyguardVisibilityChanged(int showing) { 780 if (DEBUG) Log.d(TAG, "handleKeyguardVisibilityChanged(" + showing + ")"); 781 boolean isShowing = (showing == 1); 782 mKeyguardIsVisible = isShowing; 783 for (int i = 0; i < mCallbacks.size(); i++) { 784 KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get(); 785 if (cb != null) { 786 cb.onKeyguardVisibilityChanged(isShowing); 787 } 788 } 789 } 790 791 /** 792 * Handle {@link #MSG_REPORT_EMERGENCY_CALL_ACTION} 793 */ 794 private void handleReportEmergencyCallAction() { 795 for (int i = 0; i < mCallbacks.size(); i++) { 796 KeyguardUpdateMonitorCallback cb = mCallbacks.get(i).get(); 797 if (cb != null) { 798 cb.onEmergencyCallAction(); 799 } 800 } 801 } 802 803 public boolean isKeyguardVisible() { 804 return mKeyguardIsVisible; 805 } 806 807 public boolean isSwitchingUser() { 808 return mSwitchingUser; 809 } 810 811 private static boolean isBatteryUpdateInteresting(BatteryStatus old, BatteryStatus current) { 812 final boolean nowPluggedIn = current.isPluggedIn(); 813 final boolean wasPluggedIn = old.isPluggedIn(); 814 final boolean stateChangedWhilePluggedIn = 815 wasPluggedIn == true && nowPluggedIn == true 816 && (old.status != current.status); 817 818 // change in plug state is always interesting 819 if (wasPluggedIn != nowPluggedIn || stateChangedWhilePluggedIn) { 820 return true; 821 } 822 823 // change in battery level while plugged in 824 if (nowPluggedIn && old.level != current.level) { 825 return true; 826 } 827 828 // change where battery needs charging 829 if (!nowPluggedIn && current.isBatteryLow() && current.level != old.level) { 830 return true; 831 } 832 return false; 833 } 834 835 /** 836 * @param intent The intent with action {@link TelephonyIntents#SPN_STRINGS_UPDATED_ACTION} 837 * @return The string to use for the plmn, or null if it should not be shown. 838 */ 839 private CharSequence getTelephonyPlmnFrom(Intent intent) { 840 if (intent.getBooleanExtra(TelephonyIntents.EXTRA_SHOW_PLMN, false)) { 841 final String plmn = intent.getStringExtra(TelephonyIntents.EXTRA_PLMN); 842 return (plmn != null) ? plmn : getDefaultPlmn(); 843 } 844 return null; 845 } 846 847 /** 848 * @return The default plmn (no service) 849 */ 850 private CharSequence getDefaultPlmn() { 851 return mContext.getResources().getText(R.string.keyguard_carrier_default); 852 } 853 854 /** 855 * @param intent The intent with action {@link Telephony.Intents#SPN_STRINGS_UPDATED_ACTION} 856 * @return The string to use for the plmn, or null if it should not be shown. 857 */ 858 private CharSequence getTelephonySpnFrom(Intent intent) { 859 if (intent.getBooleanExtra(TelephonyIntents.EXTRA_SHOW_SPN, false)) { 860 final String spn = intent.getStringExtra(TelephonyIntents.EXTRA_SPN); 861 if (spn != null) { 862 return spn; 863 } 864 } 865 return null; 866 } 867 868 /** 869 * Remove the given observer's callback. 870 * 871 * @param callback The callback to remove 872 */ 873 public void removeCallback(KeyguardUpdateMonitorCallback callback) { 874 if (DEBUG) Log.v(TAG, "*** unregister callback for " + callback); 875 for (int i = mCallbacks.size() - 1; i >= 0; i--) { 876 if (mCallbacks.get(i).get() == callback) { 877 mCallbacks.remove(i); 878 } 879 } 880 } 881 882 /** 883 * Register to receive notifications about general keyguard information 884 * (see {@link InfoCallback}. 885 * @param callback The callback to register 886 */ 887 public void registerCallback(KeyguardUpdateMonitorCallback callback) { 888 if (DEBUG) Log.v(TAG, "*** register callback for " + callback); 889 // Prevent adding duplicate callbacks 890 for (int i = 0; i < mCallbacks.size(); i++) { 891 if (mCallbacks.get(i).get() == callback) { 892 if (DEBUG) Log.e(TAG, "Object tried to add another callback", 893 new Exception("Called by")); 894 return; 895 } 896 } 897 mCallbacks.add(new WeakReference<KeyguardUpdateMonitorCallback>(callback)); 898 removeCallback(null); // remove unused references 899 sendUpdates(callback); 900 } 901 902 private void sendUpdates(KeyguardUpdateMonitorCallback callback) { 903 // Notify listener of the current state 904 callback.onRefreshBatteryInfo(mBatteryStatus); 905 callback.onTimeChanged(); 906 callback.onRingerModeChanged(mRingMode); 907 callback.onPhoneStateChanged(mPhoneState); 908 callback.onRefreshCarrierInfo(mTelephonyPlmn, mTelephonySpn); 909 callback.onClockVisibilityChanged(); 910 callback.onSimStateChanged(mSimState); 911 callback.onMusicClientIdChanged( 912 mDisplayClientState.clientGeneration, 913 mDisplayClientState.clearing, 914 mDisplayClientState.intent); 915 callback.onMusicPlaybackStateChanged(mDisplayClientState.playbackState, 916 mDisplayClientState.playbackEventTime); 917 } 918 919 public void sendKeyguardVisibilityChanged(boolean showing) { 920 if (DEBUG) Log.d(TAG, "sendKeyguardVisibilityChanged(" + showing + ")"); 921 Message message = mHandler.obtainMessage(MSG_KEYGUARD_VISIBILITY_CHANGED); 922 message.arg1 = showing ? 1 : 0; 923 message.sendToTarget(); 924 } 925 926 public void reportClockVisible(boolean visible) { 927 mClockVisible = visible; 928 mHandler.obtainMessage(MSG_CLOCK_VISIBILITY_CHANGED).sendToTarget(); 929 } 930 931 public IccCardConstants.State getSimState() { 932 return mSimState; 933 } 934 935 /** 936 * Report that the user successfully entered the SIM PIN or PUK/SIM PIN so we 937 * have the information earlier than waiting for the intent 938 * broadcast from the telephony code. 939 * 940 * NOTE: Because handleSimStateChange() invokes callbacks immediately without going 941 * through mHandler, this *must* be called from the UI thread. 942 */ 943 public void reportSimUnlocked() { 944 handleSimStateChange(new SimArgs(IccCardConstants.State.READY)); 945 } 946 947 /** 948 * Report that the emergency call button has been pressed and the emergency dialer is 949 * about to be displayed. 950 * 951 * @param bypassHandler runs immediately. 952 * 953 * NOTE: Must be called from UI thread if bypassHandler == true. 954 */ 955 public void reportEmergencyCallAction(boolean bypassHandler) { 956 if (!bypassHandler) { 957 mHandler.obtainMessage(MSG_REPORT_EMERGENCY_CALL_ACTION).sendToTarget(); 958 } else { 959 handleReportEmergencyCallAction(); 960 } 961 } 962 963 public CharSequence getTelephonyPlmn() { 964 return mTelephonyPlmn; 965 } 966 967 public CharSequence getTelephonySpn() { 968 return mTelephonySpn; 969 } 970 971 /** 972 * @return Whether the device is provisioned (whether they have gone through 973 * the setup wizard) 974 */ 975 public boolean isDeviceProvisioned() { 976 return mDeviceProvisioned; 977 } 978 979 public int getFailedUnlockAttempts() { 980 return mFailedAttempts; 981 } 982 983 public void clearFailedUnlockAttempts() { 984 mFailedAttempts = 0; 985 mFailedBiometricUnlockAttempts = 0; 986 } 987 988 public void reportFailedUnlockAttempt() { 989 mFailedAttempts++; 990 } 991 992 public boolean isClockVisible() { 993 return mClockVisible; 994 } 995 996 public int getPhoneState() { 997 return mPhoneState; 998 } 999 1000 public void reportFailedBiometricUnlockAttempt() { 1001 mFailedBiometricUnlockAttempts++; 1002 } 1003 1004 public boolean getMaxBiometricUnlockAttemptsReached() { 1005 return mFailedBiometricUnlockAttempts >= FAILED_BIOMETRIC_UNLOCK_ATTEMPTS_BEFORE_BACKUP; 1006 } 1007 1008 public boolean isAlternateUnlockEnabled() { 1009 return mAlternateUnlockEnabled; 1010 } 1011 1012 public void setAlternateUnlockEnabled(boolean enabled) { 1013 mAlternateUnlockEnabled = enabled; 1014 } 1015 1016 public boolean isSimLocked() { 1017 return isSimLocked(mSimState); 1018 } 1019 1020 public static boolean isSimLocked(IccCardConstants.State state) { 1021 return state == IccCardConstants.State.PIN_REQUIRED 1022 || state == IccCardConstants.State.PUK_REQUIRED 1023 || state == IccCardConstants.State.PERM_DISABLED; 1024 } 1025 1026 public boolean isSimPinSecure() { 1027 return isSimPinSecure(mSimState); 1028 } 1029 1030 public static boolean isSimPinSecure(IccCardConstants.State state) { 1031 final IccCardConstants.State simState = state; 1032 return (simState == IccCardConstants.State.PIN_REQUIRED 1033 || simState == IccCardConstants.State.PUK_REQUIRED 1034 || simState == IccCardConstants.State.PERM_DISABLED); 1035 } 1036 1037 public DisplayClientState getCachedDisplayClientState() { 1038 return mDisplayClientState; 1039 } 1040} 1041