1 /** 2 * Copyright (C) 2015 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 package com.android.server.vr; 17 18 import static android.view.Display.INVALID_DISPLAY; 19 20 import android.Manifest; 21 import android.app.ActivityManagerInternal; 22 import android.app.ActivityManagerInternal.ScreenObserver; 23 import android.app.ActivityManager; 24 import android.app.AppOpsManager; 25 import android.app.INotificationManager; 26 import android.app.Vr2dDisplayProperties; 27 import android.app.NotificationManager; 28 import android.annotation.NonNull; 29 import android.content.BroadcastReceiver; 30 import android.content.ComponentName; 31 import android.content.ContentResolver; 32 import android.content.Context; 33 import android.content.Intent; 34 import android.content.IntentFilter; 35 import android.content.pm.ApplicationInfo; 36 import android.content.pm.PackageManager; 37 import android.content.pm.PackageManager.NameNotFoundException; 38 import android.hardware.display.DisplayManager; 39 import android.os.Binder; 40 import android.os.Handler; 41 import android.os.IBinder; 42 import android.os.IInterface; 43 import android.os.Looper; 44 import android.os.Message; 45 import android.os.RemoteCallbackList; 46 import android.os.RemoteException; 47 import android.os.ServiceManager; 48 import android.os.SystemProperties; 49 import android.os.UserHandle; 50 import android.provider.Settings; 51 import android.service.notification.NotificationListenerService; 52 import android.service.vr.IPersistentVrStateCallbacks; 53 import android.service.vr.IVrListener; 54 import android.service.vr.IVrManager; 55 import android.service.vr.IVrStateCallbacks; 56 import android.service.vr.VrListenerService; 57 import android.text.TextUtils; 58 import android.util.ArrayMap; 59 import android.util.ArraySet; 60 import android.util.Slog; 61 import android.util.SparseArray; 62 63 import com.android.server.FgThread; 64 import com.android.server.wm.WindowManagerInternal; 65 import android.view.inputmethod.InputMethodManagerInternal; 66 67 import com.android.internal.R; 68 import com.android.internal.util.DumpUtils; 69 import com.android.server.LocalServices; 70 import com.android.server.SystemConfig; 71 import com.android.server.SystemService; 72 import com.android.server.utils.ManagedApplicationService.PendingEvent; 73 import com.android.server.utils.ManagedApplicationService.LogEvent; 74 import com.android.server.utils.ManagedApplicationService.LogFormattable; 75 import com.android.server.vr.EnabledComponentsObserver.EnabledComponentChangeListener; 76 import com.android.server.utils.ManagedApplicationService; 77 import com.android.server.utils.ManagedApplicationService.BinderChecker; 78 79 import java.io.FileDescriptor; 80 import java.io.PrintWriter; 81 import java.lang.StringBuilder; 82 import java.text.SimpleDateFormat; 83 import java.util.Arrays; 84 import java.util.ArrayDeque; 85 import java.util.ArrayList; 86 import java.util.Collection; 87 import java.util.Date; 88 import java.util.List; 89 import java.util.Objects; 90 91 /** 92 * Service tracking whether VR mode is active, and notifying listening services of state changes. 93 * <p/> 94 * Services running in system server may modify the state of VrManagerService via the interface in 95 * VrManagerInternal, and may register to receive callbacks when the system VR mode changes via the 96 * interface given in VrStateListener. 97 * <p/> 98 * Device vendors may choose to receive VR state changes by implementing the VR mode HAL, e.g.: 99 * hardware/libhardware/modules/vr 100 * <p/> 101 * In general applications may enable or disable VR mode by calling 102 * {@link android.app.Activity#setVrModeEnabled)}. An application may also implement a service to 103 * be run while in VR mode by implementing {@link android.service.vr.VrListenerService}. 104 * 105 * @see android.service.vr.VrListenerService 106 * @see com.android.server.vr.VrManagerInternal 107 * @see com.android.server.vr.VrStateListener 108 * 109 * @hide 110 */ 111 public class VrManagerService extends SystemService 112 implements EnabledComponentChangeListener, ScreenObserver { 113 114 public static final String TAG = "VrManagerService"; 115 static final boolean DBG = false; 116 117 private static final int PENDING_STATE_DELAY_MS = 300; 118 private static final int EVENT_LOG_SIZE = 64; 119 private static final int INVALID_APPOPS_MODE = -1; 120 /** Null set of sleep sleep flags. */ 121 private static final int FLAG_NONE = 0; 122 /** Flag set when the device is not sleeping. */ 123 private static final int FLAG_AWAKE = 1 << 0; 124 /** Flag set when the screen has been turned on. */ 125 private static final int FLAG_SCREEN_ON = 1 << 1; 126 /** Flag set when the keyguard is not active. */ 127 private static final int FLAG_KEYGUARD_UNLOCKED = 1 << 2; 128 /** Flag indicating that all system sleep flags have been set.*/ 129 private static final int FLAG_ALL = FLAG_AWAKE | FLAG_SCREEN_ON | FLAG_KEYGUARD_UNLOCKED; 130 initializeNative()131 private static native void initializeNative(); setVrModeNative(boolean enabled)132 private static native void setVrModeNative(boolean enabled); 133 134 private final Object mLock = new Object(); 135 136 private final IBinder mOverlayToken = new Binder(); 137 138 // State protected by mLock 139 private boolean mVrModeAllowed; 140 private boolean mVrModeEnabled; 141 private boolean mPersistentVrModeEnabled; 142 private boolean mRunning2dInVr; 143 private int mVrAppProcessId; 144 private EnabledComponentsObserver mComponentObserver; 145 private ManagedApplicationService mCurrentVrService; 146 private ManagedApplicationService mCurrentVrCompositorService; 147 private ComponentName mDefaultVrService; 148 private Context mContext; 149 private ComponentName mCurrentVrModeComponent; 150 private int mCurrentVrModeUser; 151 private boolean mWasDefaultGranted; 152 private boolean mGuard; 153 private final RemoteCallbackList<IVrStateCallbacks> mVrStateRemoteCallbacks = 154 new RemoteCallbackList<>(); 155 private final RemoteCallbackList<IPersistentVrStateCallbacks> 156 mPersistentVrStateRemoteCallbacks = new RemoteCallbackList<>(); 157 private int mPreviousCoarseLocationMode = INVALID_APPOPS_MODE; 158 private int mPreviousManageOverlayMode = INVALID_APPOPS_MODE; 159 private VrState mPendingState; 160 private boolean mLogLimitHit; 161 private final ArrayDeque<LogFormattable> mLoggingDeque = new ArrayDeque<>(EVENT_LOG_SIZE); 162 private final NotificationAccessManager mNotifAccessManager = new NotificationAccessManager(); 163 private INotificationManager mNotificationManager; 164 /** Tracks the state of the screen and keyguard UI.*/ 165 private int mSystemSleepFlags = FLAG_AWAKE | FLAG_KEYGUARD_UNLOCKED; 166 /** 167 * Set when ACTION_USER_UNLOCKED is fired. We shouldn't try to bind to the 168 * vr service before then. This gets set only once the first time the user unlocks the device 169 * and stays true thereafter. 170 */ 171 private boolean mUserUnlocked; 172 private Vr2dDisplay mVr2dDisplay; 173 private boolean mBootsToVr; 174 private boolean mStandby; 175 private boolean mUseStandbyToExitVrMode; 176 177 // Handles events from the managed services (e.g. VrListenerService and any bound VR compositor 178 // service). 179 private final ManagedApplicationService.EventCallback mEventCallback 180 = new ManagedApplicationService.EventCallback() { 181 @Override 182 public void onServiceEvent(LogEvent event) { 183 logEvent(event); 184 185 ComponentName component = null; 186 synchronized (mLock) { 187 component = ((mCurrentVrService == null) ? null : mCurrentVrService.getComponent()); 188 189 // If the VrCore main service was disconnected or the binding died we'll rebind 190 // automatically. Call focusedActivityChanged() once we rebind. 191 if (component != null && component.equals(event.component) && 192 (event.event == LogEvent.EVENT_DISCONNECTED || 193 event.event == LogEvent.EVENT_BINDING_DIED)) { 194 callFocusedActivityChangedLocked(); 195 } 196 } 197 198 // If not on an AIO device and we permanently stopped trying to connect to the 199 // VrListenerService (or don't have one bound), leave persistent VR mode and VR mode. 200 if (!mBootsToVr && event.event == LogEvent.EVENT_STOPPED_PERMANENTLY && 201 (component == null || component.equals(event.component))) { 202 Slog.e(TAG, "VrListenerSevice has died permanently, leaving system VR mode."); 203 // We're not a native VR device. Leave VR + persistent mode. 204 setPersistentVrModeEnabled(false); 205 } 206 } 207 }; 208 209 private static final int MSG_VR_STATE_CHANGE = 0; 210 private static final int MSG_PENDING_VR_STATE_CHANGE = 1; 211 private static final int MSG_PERSISTENT_VR_MODE_STATE_CHANGE = 2; 212 213 /** 214 * Set whether VR mode may be enabled. 215 * <p/> 216 * If VR mode is not allowed to be enabled, calls to set VR mode will be cached. When VR mode 217 * is again allowed to be enabled, the most recent cached state will be applied. 218 * 219 */ updateVrModeAllowedLocked()220 private void updateVrModeAllowedLocked() { 221 boolean ignoreSleepFlags = mBootsToVr && mUseStandbyToExitVrMode; 222 boolean disallowedByStandby = mStandby && mUseStandbyToExitVrMode; 223 boolean allowed = (mSystemSleepFlags == FLAG_ALL || ignoreSleepFlags) && mUserUnlocked 224 && !disallowedByStandby; 225 if (mVrModeAllowed != allowed) { 226 mVrModeAllowed = allowed; 227 if (DBG) Slog.d(TAG, "VR mode is " + ((allowed) ? "allowed" : "disallowed")); 228 if (mVrModeAllowed) { 229 if (mBootsToVr) { 230 setPersistentVrModeEnabled(true); 231 } 232 if (mBootsToVr && !mVrModeEnabled) { 233 setVrMode(true, mDefaultVrService, 0, -1, null); 234 } 235 } else { 236 // Disable persistent mode when VR mode isn't allowed, allows an escape hatch to 237 // exit persistent VR mode when screen is turned off. 238 setPersistentModeAndNotifyListenersLocked(false); 239 240 // Set pending state to current state. 241 mPendingState = (mVrModeEnabled && mCurrentVrService != null) 242 ? new VrState(mVrModeEnabled, mRunning2dInVr, mCurrentVrService.getComponent(), 243 mCurrentVrService.getUserId(), mVrAppProcessId, mCurrentVrModeComponent) 244 : null; 245 246 // Unbind current VR service and do necessary callbacks. 247 updateCurrentVrServiceLocked(false, false, null, 0, -1, null); 248 } 249 } 250 } 251 setScreenOn(boolean isScreenOn)252 private void setScreenOn(boolean isScreenOn) { 253 setSystemState(FLAG_SCREEN_ON, isScreenOn); 254 } 255 256 @Override onAwakeStateChanged(boolean isAwake)257 public void onAwakeStateChanged(boolean isAwake) { 258 setSystemState(FLAG_AWAKE, isAwake); 259 } 260 261 @Override onKeyguardStateChanged(boolean isShowing)262 public void onKeyguardStateChanged(boolean isShowing) { 263 setSystemState(FLAG_KEYGUARD_UNLOCKED, !isShowing); 264 } 265 setSystemState(int flags, boolean isOn)266 private void setSystemState(int flags, boolean isOn) { 267 synchronized(mLock) { 268 int oldState = mSystemSleepFlags; 269 if (isOn) { 270 mSystemSleepFlags |= flags; 271 } else { 272 mSystemSleepFlags &= ~flags; 273 } 274 if (oldState != mSystemSleepFlags) { 275 if (DBG) Slog.d(TAG, "System state: " + getStateAsString()); 276 updateVrModeAllowedLocked(); 277 } 278 } 279 } 280 getStateAsString()281 private String getStateAsString() { 282 return new StringBuilder() 283 .append((mSystemSleepFlags & FLAG_AWAKE) != 0 ? "awake, " : "") 284 .append((mSystemSleepFlags & FLAG_SCREEN_ON) != 0 ? "screen_on, " : "") 285 .append((mSystemSleepFlags & FLAG_KEYGUARD_UNLOCKED) != 0 ? "keyguard_off" : "") 286 .toString(); 287 } 288 setUserUnlocked()289 private void setUserUnlocked() { 290 synchronized(mLock) { 291 mUserUnlocked = true; 292 updateVrModeAllowedLocked(); 293 } 294 } 295 setStandbyEnabled(boolean standby)296 private void setStandbyEnabled(boolean standby) { 297 synchronized(mLock) { 298 if (!mBootsToVr) { 299 Slog.e(TAG, "Attempting to set standby mode on a non-standalone device"); 300 return; 301 } 302 mStandby = standby; 303 updateVrModeAllowedLocked(); 304 } 305 } 306 307 private final Handler mHandler = new Handler() { 308 @Override 309 public void handleMessage(Message msg) { 310 switch(msg.what) { 311 case MSG_VR_STATE_CHANGE : { 312 boolean state = (msg.arg1 == 1); 313 int i = mVrStateRemoteCallbacks.beginBroadcast(); 314 while (i > 0) { 315 i--; 316 try { 317 mVrStateRemoteCallbacks.getBroadcastItem(i).onVrStateChanged(state); 318 } catch (RemoteException e) { 319 // Noop 320 } 321 } 322 mVrStateRemoteCallbacks.finishBroadcast(); 323 } break; 324 case MSG_PENDING_VR_STATE_CHANGE : { 325 synchronized(mLock) { 326 if (mVrModeAllowed) { 327 VrManagerService.this.consumeAndApplyPendingStateLocked(); 328 } 329 } 330 } break; 331 case MSG_PERSISTENT_VR_MODE_STATE_CHANGE : { 332 boolean state = (msg.arg1 == 1); 333 int i = mPersistentVrStateRemoteCallbacks.beginBroadcast(); 334 while (i > 0) { 335 i--; 336 try { 337 mPersistentVrStateRemoteCallbacks.getBroadcastItem(i) 338 .onPersistentVrStateChanged(state); 339 } catch (RemoteException e) { 340 // Noop 341 } 342 } 343 mPersistentVrStateRemoteCallbacks.finishBroadcast(); 344 } break; 345 default : 346 throw new IllegalStateException("Unknown message type: " + msg.what); 347 } 348 } 349 }; 350 351 // Event used to log when settings are changed for dumpsys logs. 352 private static class SettingEvent implements LogFormattable { 353 public final long timestamp; 354 public final String what; 355 SettingEvent(String what)356 SettingEvent(String what) { 357 this.timestamp = System.currentTimeMillis(); 358 this.what = what; 359 } 360 361 @Override toLogString(SimpleDateFormat dateFormat)362 public String toLogString(SimpleDateFormat dateFormat) { 363 return dateFormat.format(new Date(timestamp)) + " " + what; 364 } 365 } 366 367 // Event used to track changes of the primary on-screen VR activity. 368 private static class VrState implements LogFormattable { 369 final boolean enabled; 370 final boolean running2dInVr; 371 final int userId; 372 final int processId; 373 final ComponentName targetPackageName; 374 final ComponentName callingPackage; 375 final long timestamp; 376 final boolean defaultPermissionsGranted; 377 VrState(boolean enabled, boolean running2dInVr, ComponentName targetPackageName, int userId, int processId, ComponentName callingPackage)378 VrState(boolean enabled, boolean running2dInVr, ComponentName targetPackageName, int userId, 379 int processId, ComponentName callingPackage) { 380 this.enabled = enabled; 381 this.running2dInVr = running2dInVr; 382 this.userId = userId; 383 this.processId = processId; 384 this.targetPackageName = targetPackageName; 385 this.callingPackage = callingPackage; 386 this.defaultPermissionsGranted = false; 387 this.timestamp = System.currentTimeMillis(); 388 } 389 VrState(boolean enabled, boolean running2dInVr, ComponentName targetPackageName, int userId, int processId, ComponentName callingPackage, boolean defaultPermissionsGranted)390 VrState(boolean enabled, boolean running2dInVr, ComponentName targetPackageName, int userId, 391 int processId, ComponentName callingPackage, boolean defaultPermissionsGranted) { 392 this.enabled = enabled; 393 this.running2dInVr = running2dInVr; 394 this.userId = userId; 395 this.processId = processId; 396 this.targetPackageName = targetPackageName; 397 this.callingPackage = callingPackage; 398 this.defaultPermissionsGranted = defaultPermissionsGranted; 399 this.timestamp = System.currentTimeMillis(); 400 } 401 402 @Override toLogString(SimpleDateFormat dateFormat)403 public String toLogString(SimpleDateFormat dateFormat) { 404 String tab = " "; 405 String newLine = "\n"; 406 StringBuilder sb = new StringBuilder(dateFormat.format(new Date(timestamp))); 407 sb.append(tab); 408 sb.append("State changed to:"); 409 sb.append(tab); 410 sb.append((enabled) ? "ENABLED" : "DISABLED"); 411 sb.append(newLine); 412 if (enabled) { 413 sb.append(tab); 414 sb.append("User="); 415 sb.append(userId); 416 sb.append(newLine); 417 sb.append(tab); 418 sb.append("Current VR Activity="); 419 sb.append((callingPackage == null) ? "None" : callingPackage.flattenToString()); 420 sb.append(newLine); 421 sb.append(tab); 422 sb.append("Bound VrListenerService="); 423 sb.append((targetPackageName == null) ? "None" 424 : targetPackageName.flattenToString()); 425 sb.append(newLine); 426 if (defaultPermissionsGranted) { 427 sb.append(tab); 428 sb.append("Default permissions granted to the bound VrListenerService."); 429 sb.append(newLine); 430 } 431 } 432 return sb.toString(); 433 } 434 } 435 436 private static final BinderChecker sBinderChecker = new BinderChecker() { 437 @Override 438 public IInterface asInterface(IBinder binder) { 439 return IVrListener.Stub.asInterface(binder); 440 } 441 442 @Override 443 public boolean checkType(IInterface service) { 444 return service instanceof IVrListener; 445 } 446 }; 447 448 private final class NotificationAccessManager { 449 private final SparseArray<ArraySet<String>> mAllowedPackages = new SparseArray<>(); 450 private final ArrayMap<String, Integer> mNotificationAccessPackageToUserId = 451 new ArrayMap<>(); 452 update(Collection<String> packageNames)453 public void update(Collection<String> packageNames) { 454 int currentUserId = ActivityManager.getCurrentUser(); 455 456 ArraySet<String> allowed = mAllowedPackages.get(currentUserId); 457 if (allowed == null) { 458 allowed = new ArraySet<>(); 459 } 460 461 // Make sure we revoke notification access for listeners in other users 462 final int listenerCount = mNotificationAccessPackageToUserId.size(); 463 for (int i = listenerCount - 1; i >= 0; i--) { 464 final int grantUserId = mNotificationAccessPackageToUserId.valueAt(i); 465 if (grantUserId != currentUserId) { 466 String packageName = mNotificationAccessPackageToUserId.keyAt(i); 467 revokeNotificationListenerAccess(packageName, grantUserId); 468 revokeNotificationPolicyAccess(packageName); 469 revokeCoarseLocationPermissionIfNeeded(packageName, grantUserId); 470 mNotificationAccessPackageToUserId.removeAt(i); 471 } 472 } 473 474 for (String pkg : allowed) { 475 if (!packageNames.contains(pkg)) { 476 revokeNotificationListenerAccess(pkg, currentUserId); 477 revokeNotificationPolicyAccess(pkg); 478 revokeCoarseLocationPermissionIfNeeded(pkg, currentUserId); 479 mNotificationAccessPackageToUserId.remove(pkg); 480 } 481 } 482 for (String pkg : packageNames) { 483 if (!allowed.contains(pkg)) { 484 grantNotificationPolicyAccess(pkg); 485 grantNotificationListenerAccess(pkg, currentUserId); 486 grantCoarseLocationPermissionIfNeeded(pkg, currentUserId); 487 mNotificationAccessPackageToUserId.put(pkg, currentUserId); 488 } 489 } 490 491 allowed.clear(); 492 allowed.addAll(packageNames); 493 mAllowedPackages.put(currentUserId, allowed); 494 } 495 } 496 497 /** 498 * Called when a user, package, or setting changes that could affect whether or not the 499 * currently bound VrListenerService is changed. 500 */ 501 @Override onEnabledComponentChanged()502 public void onEnabledComponentChanged() { 503 synchronized (mLock) { 504 int currentUser = ActivityManager.getCurrentUser(); 505 // Update listeners 506 ArraySet<ComponentName> enabledListeners = mComponentObserver.getEnabled(currentUser); 507 508 ArraySet<String> enabledPackages = new ArraySet<>(); 509 for (ComponentName n : enabledListeners) { 510 String pkg = n.getPackageName(); 511 if (isDefaultAllowed(pkg)) { 512 enabledPackages.add(n.getPackageName()); 513 } 514 } 515 mNotifAccessManager.update(enabledPackages); 516 517 if (!mVrModeAllowed) { 518 return; // Don't do anything, we shouldn't be in VR mode. 519 } 520 521 // If there is a pending state change, we'd better deal with that first 522 consumeAndApplyPendingStateLocked(false); 523 524 if (mCurrentVrService == null) { 525 return; // No active services 526 } 527 528 // There is an active service, update it if needed 529 updateCurrentVrServiceLocked(mVrModeEnabled, mRunning2dInVr, 530 mCurrentVrService.getComponent(), mCurrentVrService.getUserId(), 531 mVrAppProcessId, mCurrentVrModeComponent); 532 } 533 } 534 535 private final IVrManager mVrManager = new IVrManager.Stub() { 536 537 @Override 538 public void registerListener(IVrStateCallbacks cb) { 539 enforceCallerPermissionAnyOf(Manifest.permission.ACCESS_VR_MANAGER, 540 Manifest.permission.ACCESS_VR_STATE); 541 if (cb == null) { 542 throw new IllegalArgumentException("Callback binder object is null."); 543 } 544 545 VrManagerService.this.addStateCallback(cb); 546 } 547 548 @Override 549 public void unregisterListener(IVrStateCallbacks cb) { 550 enforceCallerPermissionAnyOf(Manifest.permission.ACCESS_VR_MANAGER, 551 Manifest.permission.ACCESS_VR_STATE); 552 if (cb == null) { 553 throw new IllegalArgumentException("Callback binder object is null."); 554 } 555 556 VrManagerService.this.removeStateCallback(cb); 557 } 558 559 @Override 560 public void registerPersistentVrStateListener(IPersistentVrStateCallbacks cb) { 561 enforceCallerPermissionAnyOf(Manifest.permission.ACCESS_VR_MANAGER, 562 Manifest.permission.ACCESS_VR_STATE); 563 if (cb == null) { 564 throw new IllegalArgumentException("Callback binder object is null."); 565 } 566 567 VrManagerService.this.addPersistentStateCallback(cb); 568 } 569 570 @Override 571 public void unregisterPersistentVrStateListener(IPersistentVrStateCallbacks cb) { 572 enforceCallerPermissionAnyOf(Manifest.permission.ACCESS_VR_MANAGER, 573 Manifest.permission.ACCESS_VR_STATE); 574 if (cb == null) { 575 throw new IllegalArgumentException("Callback binder object is null."); 576 } 577 578 VrManagerService.this.removePersistentStateCallback(cb); 579 } 580 581 @Override 582 public boolean getVrModeState() { 583 enforceCallerPermissionAnyOf(Manifest.permission.ACCESS_VR_MANAGER, 584 Manifest.permission.ACCESS_VR_STATE); 585 return VrManagerService.this.getVrMode(); 586 } 587 588 @Override 589 public boolean getPersistentVrModeEnabled() { 590 enforceCallerPermissionAnyOf(Manifest.permission.ACCESS_VR_MANAGER, 591 Manifest.permission.ACCESS_VR_STATE); 592 return VrManagerService.this.getPersistentVrMode(); 593 } 594 595 @Override 596 public void setPersistentVrModeEnabled(boolean enabled) { 597 enforceCallerPermissionAnyOf(Manifest.permission.RESTRICTED_VR_ACCESS); 598 VrManagerService.this.setPersistentVrModeEnabled(enabled); 599 } 600 601 @Override 602 public void setVr2dDisplayProperties( 603 Vr2dDisplayProperties vr2dDisplayProp) { 604 enforceCallerPermissionAnyOf(Manifest.permission.RESTRICTED_VR_ACCESS); 605 VrManagerService.this.setVr2dDisplayProperties(vr2dDisplayProp); 606 } 607 608 @Override 609 public int getVr2dDisplayId() { 610 return VrManagerService.this.getVr2dDisplayId(); 611 } 612 613 @Override 614 public void setAndBindCompositor(String componentName) { 615 enforceCallerPermissionAnyOf(Manifest.permission.RESTRICTED_VR_ACCESS); 616 VrManagerService.this.setAndBindCompositor( 617 (componentName == null) ? null : ComponentName.unflattenFromString(componentName)); 618 } 619 620 @Override 621 public void setStandbyEnabled(boolean standby) { 622 enforceCallerPermissionAnyOf(Manifest.permission.ACCESS_VR_MANAGER); 623 VrManagerService.this.setStandbyEnabled(standby); 624 } 625 626 @Override 627 public void setVrInputMethod(ComponentName componentName) { 628 enforceCallerPermissionAnyOf(Manifest.permission.RESTRICTED_VR_ACCESS); 629 InputMethodManagerInternal imm = 630 LocalServices.getService(InputMethodManagerInternal.class); 631 imm.startVrInputMethodNoCheck(componentName); 632 } 633 634 @Override 635 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 636 if (!DumpUtils.checkDumpPermission(mContext, TAG, pw)) return; 637 638 pw.println("********* Dump of VrManagerService *********"); 639 pw.println("VR mode is currently: " + ((mVrModeAllowed) ? "allowed" : "disallowed")); 640 pw.println("Persistent VR mode is currently: " + 641 ((mPersistentVrModeEnabled) ? "enabled" : "disabled")); 642 pw.println("Currently bound VR listener service: " 643 + ((mCurrentVrService == null) 644 ? "None" : mCurrentVrService.getComponent().flattenToString())); 645 pw.println("Currently bound VR compositor service: " 646 + ((mCurrentVrCompositorService == null) 647 ? "None" : mCurrentVrCompositorService.getComponent().flattenToString())); 648 pw.println("Previous state transitions:\n"); 649 String tab = " "; 650 dumpStateTransitions(pw); 651 pw.println("\n\nRemote Callbacks:"); 652 int i=mVrStateRemoteCallbacks.beginBroadcast(); // create the broadcast item array 653 while(i-->0) { 654 pw.print(tab); 655 pw.print(mVrStateRemoteCallbacks.getBroadcastItem(i)); 656 if (i>0) pw.println(","); 657 } 658 mVrStateRemoteCallbacks.finishBroadcast(); 659 pw.println("\n\nPersistent Vr State Remote Callbacks:"); 660 i=mPersistentVrStateRemoteCallbacks.beginBroadcast(); 661 while(i-->0) { 662 pw.print(tab); 663 pw.print(mPersistentVrStateRemoteCallbacks.getBroadcastItem(i)); 664 if (i>0) pw.println(","); 665 } 666 mPersistentVrStateRemoteCallbacks.finishBroadcast(); 667 pw.println("\n"); 668 pw.println("Installed VrListenerService components:"); 669 int userId = mCurrentVrModeUser; 670 ArraySet<ComponentName> installed = mComponentObserver.getInstalled(userId); 671 if (installed == null || installed.size() == 0) { 672 pw.println("None"); 673 } else { 674 for (ComponentName n : installed) { 675 pw.print(tab); 676 pw.println(n.flattenToString()); 677 } 678 } 679 pw.println("Enabled VrListenerService components:"); 680 ArraySet<ComponentName> enabled = mComponentObserver.getEnabled(userId); 681 if (enabled == null || enabled.size() == 0) { 682 pw.println("None"); 683 } else { 684 for (ComponentName n : enabled) { 685 pw.print(tab); 686 pw.println(n.flattenToString()); 687 } 688 } 689 pw.println("\n"); 690 pw.println("********* End of VrManagerService Dump *********"); 691 } 692 693 }; 694 695 /** 696 * Enforces that at lease one of the specified permissions is held by the caller. 697 * Throws SecurityException if none of the specified permissions are held. 698 * 699 * @param permissions One or more permissions to check against. 700 */ enforceCallerPermissionAnyOf(String... permissions)701 private void enforceCallerPermissionAnyOf(String... permissions) { 702 for (String permission : permissions) { 703 if (mContext.checkCallingOrSelfPermission(permission) 704 == PackageManager.PERMISSION_GRANTED) { 705 return; 706 } 707 } 708 throw new SecurityException("Caller does not hold at least one of the permissions: " 709 + Arrays.toString(permissions)); 710 } 711 712 /** 713 * Implementation of VrManagerInternal. Callable only from system services. 714 */ 715 private final class LocalService extends VrManagerInternal { 716 @Override setVrMode(boolean enabled, ComponentName packageName, int userId, int processId, ComponentName callingPackage)717 public void setVrMode(boolean enabled, ComponentName packageName, int userId, int processId, 718 ComponentName callingPackage) { 719 VrManagerService.this.setVrMode(enabled, packageName, userId, processId, callingPackage); 720 } 721 722 @Override onScreenStateChanged(boolean isScreenOn)723 public void onScreenStateChanged(boolean isScreenOn) { 724 VrManagerService.this.setScreenOn(isScreenOn); 725 } 726 727 @Override isCurrentVrListener(String packageName, int userId)728 public boolean isCurrentVrListener(String packageName, int userId) { 729 return VrManagerService.this.isCurrentVrListener(packageName, userId); 730 } 731 732 @Override hasVrPackage(ComponentName packageName, int userId)733 public int hasVrPackage(ComponentName packageName, int userId) { 734 return VrManagerService.this.hasVrPackage(packageName, userId); 735 } 736 737 @Override setPersistentVrModeEnabled(boolean enabled)738 public void setPersistentVrModeEnabled(boolean enabled) { 739 VrManagerService.this.setPersistentVrModeEnabled(enabled); 740 } 741 742 @Override setVr2dDisplayProperties( Vr2dDisplayProperties compatDisplayProp)743 public void setVr2dDisplayProperties( 744 Vr2dDisplayProperties compatDisplayProp) { 745 VrManagerService.this.setVr2dDisplayProperties(compatDisplayProp); 746 } 747 748 @Override getVr2dDisplayId()749 public int getVr2dDisplayId() { 750 return VrManagerService.this.getVr2dDisplayId(); 751 } 752 753 @Override addPersistentVrModeStateListener(IPersistentVrStateCallbacks listener)754 public void addPersistentVrModeStateListener(IPersistentVrStateCallbacks listener) { 755 VrManagerService.this.addPersistentStateCallback(listener); 756 } 757 } 758 VrManagerService(Context context)759 public VrManagerService(Context context) { 760 super(context); 761 } 762 763 @Override onStart()764 public void onStart() { 765 synchronized(mLock) { 766 initializeNative(); 767 mContext = getContext(); 768 } 769 770 mBootsToVr = SystemProperties.getBoolean("ro.boot.vr", false); 771 mUseStandbyToExitVrMode = mBootsToVr 772 && SystemProperties.getBoolean("persist.vr.use_standby_to_exit_vr_mode", true); 773 publishLocalService(VrManagerInternal.class, new LocalService()); 774 publishBinderService(Context.VR_SERVICE, mVrManager.asBinder()); 775 } 776 777 @Override onBootPhase(int phase)778 public void onBootPhase(int phase) { 779 if (phase == SystemService.PHASE_SYSTEM_SERVICES_READY) { 780 LocalServices.getService(ActivityManagerInternal.class) 781 .registerScreenObserver(this); 782 783 mNotificationManager = INotificationManager.Stub.asInterface( 784 ServiceManager.getService(Context.NOTIFICATION_SERVICE)); 785 synchronized (mLock) { 786 Looper looper = Looper.getMainLooper(); 787 Handler handler = new Handler(looper); 788 ArrayList<EnabledComponentChangeListener> listeners = new ArrayList<>(); 789 listeners.add(this); 790 mComponentObserver = EnabledComponentsObserver.build(mContext, handler, 791 Settings.Secure.ENABLED_VR_LISTENERS, looper, 792 android.Manifest.permission.BIND_VR_LISTENER_SERVICE, 793 VrListenerService.SERVICE_INTERFACE, mLock, listeners); 794 795 mComponentObserver.rebuildAll(); 796 } 797 798 //TODO: something more robust than picking the first one 799 ArraySet<ComponentName> defaultVrComponents = 800 SystemConfig.getInstance().getDefaultVrComponents(); 801 if (defaultVrComponents.size() > 0) { 802 mDefaultVrService = defaultVrComponents.valueAt(0); 803 } else { 804 Slog.i(TAG, "No default vr listener service found."); 805 } 806 807 DisplayManager dm = 808 (DisplayManager) getContext().getSystemService(Context.DISPLAY_SERVICE); 809 mVr2dDisplay = new Vr2dDisplay( 810 dm, 811 LocalServices.getService(ActivityManagerInternal.class), 812 LocalServices.getService(WindowManagerInternal.class), 813 mVrManager); 814 mVr2dDisplay.init(getContext(), mBootsToVr); 815 816 IntentFilter intentFilter = new IntentFilter(); 817 intentFilter.addAction(Intent.ACTION_USER_UNLOCKED); 818 getContext().registerReceiver(new BroadcastReceiver() { 819 @Override 820 public void onReceive(Context context, Intent intent) { 821 if (Intent.ACTION_USER_UNLOCKED.equals(intent.getAction())) { 822 VrManagerService.this.setUserUnlocked(); 823 } 824 } 825 }, intentFilter); 826 } 827 } 828 829 @Override onStartUser(int userHandle)830 public void onStartUser(int userHandle) { 831 synchronized (mLock) { 832 mComponentObserver.onUsersChanged(); 833 } 834 } 835 836 @Override onSwitchUser(int userHandle)837 public void onSwitchUser(int userHandle) { 838 FgThread.getHandler().post(() -> { 839 synchronized (mLock) { 840 mComponentObserver.onUsersChanged(); 841 } 842 }); 843 844 } 845 846 @Override onStopUser(int userHandle)847 public void onStopUser(int userHandle) { 848 synchronized (mLock) { 849 mComponentObserver.onUsersChanged(); 850 } 851 852 } 853 854 @Override onCleanupUser(int userHandle)855 public void onCleanupUser(int userHandle) { 856 synchronized (mLock) { 857 mComponentObserver.onUsersChanged(); 858 } 859 } 860 updateOverlayStateLocked(String exemptedPackage, int newUserId, int oldUserId)861 private void updateOverlayStateLocked(String exemptedPackage, int newUserId, int oldUserId) { 862 AppOpsManager appOpsManager = getContext().getSystemService(AppOpsManager.class); 863 864 // If user changed drop restrictions for the old user. 865 if (oldUserId != newUserId) { 866 appOpsManager.setUserRestrictionForUser(AppOpsManager.OP_SYSTEM_ALERT_WINDOW, 867 false, mOverlayToken, null, oldUserId); 868 } 869 870 // Apply the restrictions for the current user based on vr state 871 String[] exemptions = (exemptedPackage == null) ? new String[0] : 872 new String[] { exemptedPackage }; 873 874 appOpsManager.setUserRestrictionForUser(AppOpsManager.OP_SYSTEM_ALERT_WINDOW, 875 mVrModeEnabled, mOverlayToken, exemptions, newUserId); 876 } 877 updateDependentAppOpsLocked(String newVrServicePackage, int newUserId, String oldVrServicePackage, int oldUserId)878 private void updateDependentAppOpsLocked(String newVrServicePackage, int newUserId, 879 String oldVrServicePackage, int oldUserId) { 880 // If VR state changed and we also have a VR service change. 881 if (Objects.equals(newVrServicePackage, oldVrServicePackage)) { 882 return; 883 } 884 final long identity = Binder.clearCallingIdentity(); 885 try { 886 // Set overlay exception state based on VR enabled and current service 887 updateOverlayStateLocked(newVrServicePackage, newUserId, oldUserId); 888 } finally { 889 Binder.restoreCallingIdentity(identity); 890 } 891 } 892 893 /** 894 * Send VR mode changes (if the mode state has changed), and update the bound/unbound state of 895 * the currently selected VR listener service. If the component selected for the VR listener 896 * service has changed, unbind the previous listener and bind the new listener (if enabled). 897 * <p/> 898 * Note: Must be called while holding {@code mLock}. 899 * 900 * @param enabled new state for VR mode. 901 * @param running2dInVr true if we have a top-level 2D intent. 902 * @param component new component to be bound as a VR listener. 903 * @param userId user owning the component to be bound. 904 * @param processId the process hosting the activity specified by calling. 905 * @param calling the component currently using VR mode or a 2D intent. 906 * 907 * @return {@code true} if the component/user combination specified is valid. 908 */ updateCurrentVrServiceLocked(boolean enabled, boolean running2dInVr, @NonNull ComponentName component, int userId, int processId, ComponentName calling)909 private boolean updateCurrentVrServiceLocked(boolean enabled, boolean running2dInVr, 910 @NonNull ComponentName component, int userId, int processId, ComponentName calling) { 911 912 boolean sendUpdatedCaller = false; 913 final long identity = Binder.clearCallingIdentity(); 914 try { 915 916 boolean validUserComponent = (mComponentObserver.isValid(component, userId) == 917 EnabledComponentsObserver.NO_ERROR); 918 boolean goingIntoVrMode = validUserComponent && enabled; 919 if (!mVrModeEnabled && !goingIntoVrMode) { 920 return validUserComponent; // Disabled -> Disabled transition does nothing. 921 } 922 923 String oldVrServicePackage = mCurrentVrService != null 924 ? mCurrentVrService.getComponent().getPackageName() : null; 925 final int oldUserId = mCurrentVrModeUser; 926 927 // Notify system services and VR HAL of mode change. 928 changeVrModeLocked(goingIntoVrMode); 929 930 boolean nothingChanged = false; 931 if (!goingIntoVrMode) { 932 // Not going into VR mode, unbind whatever is running 933 if (mCurrentVrService != null) { 934 Slog.i(TAG, "Leaving VR mode, disconnecting " 935 + mCurrentVrService.getComponent() + " for user " 936 + mCurrentVrService.getUserId()); 937 mCurrentVrService.disconnect(); 938 updateCompositorServiceLocked(UserHandle.USER_NULL, null); 939 mCurrentVrService = null; 940 } else { 941 nothingChanged = true; 942 } 943 } else { 944 // Going into VR mode 945 if (mCurrentVrService != null) { 946 // Unbind any running service that doesn't match the latest component/user 947 // selection. 948 if (mCurrentVrService.disconnectIfNotMatching(component, userId)) { 949 Slog.i(TAG, "VR mode component changed to " + component 950 + ", disconnecting " + mCurrentVrService.getComponent() 951 + " for user " + mCurrentVrService.getUserId()); 952 updateCompositorServiceLocked(UserHandle.USER_NULL, null); 953 createAndConnectService(component, userId); 954 sendUpdatedCaller = true; 955 } else { 956 nothingChanged = true; 957 } 958 // The service with the correct component/user is already bound, do nothing. 959 } else { 960 // Nothing was previously running, bind a new service for the latest 961 // component/user selection. 962 createAndConnectService(component, userId); 963 sendUpdatedCaller = true; 964 } 965 } 966 967 if ((calling != null || mPersistentVrModeEnabled) 968 && !Objects.equals(calling, mCurrentVrModeComponent) 969 || mRunning2dInVr != running2dInVr) { 970 sendUpdatedCaller = true; 971 } 972 mCurrentVrModeComponent = calling; 973 mRunning2dInVr = running2dInVr; 974 mVrAppProcessId = processId; 975 976 if (mCurrentVrModeUser != userId) { 977 mCurrentVrModeUser = userId; 978 sendUpdatedCaller = true; 979 } 980 981 String newVrServicePackage = mCurrentVrService != null 982 ? mCurrentVrService.getComponent().getPackageName() : null; 983 final int newUserId = mCurrentVrModeUser; 984 985 // Update AppOps settings that change state when entering/exiting VR mode, or changing 986 // the current VrListenerService. 987 updateDependentAppOpsLocked(newVrServicePackage, newUserId, 988 oldVrServicePackage, oldUserId); 989 990 if (mCurrentVrService != null && sendUpdatedCaller) { 991 callFocusedActivityChangedLocked(); 992 } 993 994 if (!nothingChanged) { 995 logStateLocked(); 996 } 997 998 return validUserComponent; 999 } finally { 1000 Binder.restoreCallingIdentity(identity); 1001 } 1002 } 1003 callFocusedActivityChangedLocked()1004 private void callFocusedActivityChangedLocked() { 1005 final ComponentName c = mCurrentVrModeComponent; 1006 final boolean b = mRunning2dInVr; 1007 final int pid = mVrAppProcessId; 1008 mCurrentVrService.sendEvent(new PendingEvent() { 1009 @Override 1010 public void runEvent(IInterface service) throws RemoteException { 1011 // Under specific (and unlikely) timing scenarios, when VrCore 1012 // crashes and is rebound, focusedActivityChanged() may be 1013 // called a 2nd time with the same arguments. IVrListeners 1014 // should make sure to handle that scenario gracefully. 1015 IVrListener l = (IVrListener) service; 1016 l.focusedActivityChanged(c, b, pid); 1017 } 1018 }); 1019 } 1020 isDefaultAllowed(String packageName)1021 private boolean isDefaultAllowed(String packageName) { 1022 PackageManager pm = mContext.getPackageManager(); 1023 1024 ApplicationInfo info = null; 1025 try { 1026 info = pm.getApplicationInfo(packageName, PackageManager.GET_META_DATA); 1027 } catch (NameNotFoundException e) { 1028 } 1029 1030 if (info == null || !(info.isSystemApp() || info.isUpdatedSystemApp())) { 1031 return false; 1032 } 1033 return true; 1034 } 1035 grantNotificationPolicyAccess(String pkg)1036 private void grantNotificationPolicyAccess(String pkg) { 1037 NotificationManager nm = mContext.getSystemService(NotificationManager.class); 1038 nm.setNotificationPolicyAccessGranted(pkg, true); 1039 } 1040 revokeNotificationPolicyAccess(String pkg)1041 private void revokeNotificationPolicyAccess(String pkg) { 1042 NotificationManager nm = mContext.getSystemService(NotificationManager.class); 1043 // Remove any DND zen rules possibly created by the package. 1044 nm.removeAutomaticZenRules(pkg); 1045 // Remove Notification Policy Access. 1046 nm.setNotificationPolicyAccessGranted(pkg, false); 1047 } 1048 grantNotificationListenerAccess(String pkg, int userId)1049 private void grantNotificationListenerAccess(String pkg, int userId) { 1050 NotificationManager nm = mContext.getSystemService(NotificationManager.class); 1051 PackageManager pm = mContext.getPackageManager(); 1052 ArraySet<ComponentName> possibleServices = EnabledComponentsObserver.loadComponentNames(pm, 1053 userId, NotificationListenerService.SERVICE_INTERFACE, 1054 android.Manifest.permission.BIND_NOTIFICATION_LISTENER_SERVICE); 1055 1056 for (ComponentName c : possibleServices) { 1057 if (Objects.equals(c.getPackageName(), pkg)) { 1058 nm.setNotificationListenerAccessGrantedForUser(c, userId, true); 1059 } 1060 } 1061 } 1062 revokeNotificationListenerAccess(String pkg, int userId)1063 private void revokeNotificationListenerAccess(String pkg, int userId) { 1064 NotificationManager nm = mContext.getSystemService(NotificationManager.class); 1065 List<ComponentName> current = nm.getEnabledNotificationListeners(userId); 1066 1067 for (ComponentName component : current) { 1068 if (component != null && component.getPackageName().equals(pkg)) { 1069 nm.setNotificationListenerAccessGrantedForUser(component, userId, false); 1070 } 1071 } 1072 } 1073 grantCoarseLocationPermissionIfNeeded(String pkg, int userId)1074 private void grantCoarseLocationPermissionIfNeeded(String pkg, int userId) { 1075 // Don't clobber the user if permission set in current state explicitly 1076 if (!isPermissionUserUpdated(Manifest.permission.ACCESS_COARSE_LOCATION, pkg, userId)) { 1077 try { 1078 mContext.getPackageManager().grantRuntimePermission(pkg, 1079 Manifest.permission.ACCESS_COARSE_LOCATION, new UserHandle(userId)); 1080 } catch (IllegalArgumentException e) { 1081 // Package was removed during update. 1082 Slog.w(TAG, "Could not grant coarse location permission, package " + pkg 1083 + " was removed."); 1084 } 1085 } 1086 } 1087 revokeCoarseLocationPermissionIfNeeded(String pkg, int userId)1088 private void revokeCoarseLocationPermissionIfNeeded(String pkg, int userId) { 1089 // Don't clobber the user if permission set in current state explicitly 1090 if (!isPermissionUserUpdated(Manifest.permission.ACCESS_COARSE_LOCATION, pkg, userId)) { 1091 try { 1092 mContext.getPackageManager().revokeRuntimePermission(pkg, 1093 Manifest.permission.ACCESS_COARSE_LOCATION, new UserHandle(userId)); 1094 } catch (IllegalArgumentException e) { 1095 // Package was removed during update. 1096 Slog.w(TAG, "Could not revoke coarse location permission, package " + pkg 1097 + " was removed."); 1098 } 1099 } 1100 } 1101 isPermissionUserUpdated(String permission, String pkg, int userId)1102 private boolean isPermissionUserUpdated(String permission, String pkg, int userId) { 1103 final int flags = mContext.getPackageManager().getPermissionFlags( 1104 permission, pkg, new UserHandle(userId)); 1105 return (flags & (PackageManager.FLAG_PERMISSION_USER_SET 1106 | PackageManager.FLAG_PERMISSION_USER_FIXED)) != 0; 1107 } 1108 getNotificationListeners(ContentResolver resolver, int userId)1109 private ArraySet<String> getNotificationListeners(ContentResolver resolver, int userId) { 1110 String flat = Settings.Secure.getStringForUser(resolver, 1111 Settings.Secure.ENABLED_NOTIFICATION_LISTENERS, userId); 1112 1113 ArraySet<String> current = new ArraySet<>(); 1114 if (flat != null) { 1115 String[] allowed = flat.split(":"); 1116 for (String s : allowed) { 1117 if (!TextUtils.isEmpty(s)) { 1118 current.add(s); 1119 } 1120 } 1121 } 1122 return current; 1123 } 1124 formatSettings(Collection<String> c)1125 private static String formatSettings(Collection<String> c) { 1126 if (c == null || c.isEmpty()) { 1127 return ""; 1128 } 1129 1130 StringBuilder b = new StringBuilder(); 1131 boolean start = true; 1132 for (String s : c) { 1133 if ("".equals(s)) { 1134 continue; 1135 } 1136 if (!start) { 1137 b.append(':'); 1138 } 1139 b.append(s); 1140 start = false; 1141 } 1142 return b.toString(); 1143 } 1144 1145 1146 createAndConnectService(@onNull ComponentName component, int userId)1147 private void createAndConnectService(@NonNull ComponentName component, int userId) { 1148 mCurrentVrService = createVrListenerService(component, userId); 1149 mCurrentVrService.connect(); 1150 Slog.i(TAG, "Connecting " + component + " for user " + userId); 1151 } 1152 1153 /** 1154 * Send VR mode change callbacks to HAL and system services if mode has actually changed. 1155 * <p/> 1156 * Note: Must be called while holding {@code mLock}. 1157 * 1158 * @param enabled new state of the VR mode. 1159 */ changeVrModeLocked(boolean enabled)1160 private void changeVrModeLocked(boolean enabled) { 1161 if (mVrModeEnabled != enabled) { 1162 mVrModeEnabled = enabled; 1163 1164 // Log mode change event. 1165 Slog.i(TAG, "VR mode " + ((mVrModeEnabled) ? "enabled" : "disabled")); 1166 setVrModeNative(mVrModeEnabled); 1167 1168 onVrModeChangedLocked(); 1169 } 1170 } 1171 1172 /** 1173 * Notify system services of VR mode change. 1174 * <p/> 1175 * Note: Must be called while holding {@code mLock}. 1176 */ onVrModeChangedLocked()1177 private void onVrModeChangedLocked() { 1178 mHandler.sendMessage(mHandler.obtainMessage(MSG_VR_STATE_CHANGE, 1179 (mVrModeEnabled) ? 1 : 0, 0)); 1180 } 1181 1182 /** 1183 * Helper function for making ManagedApplicationService for VrListenerService instances. 1184 */ createVrListenerService(@onNull ComponentName component, int userId)1185 private ManagedApplicationService createVrListenerService(@NonNull ComponentName component, 1186 int userId) { 1187 int retryType = (mBootsToVr) ? ManagedApplicationService.RETRY_FOREVER 1188 : ManagedApplicationService.RETRY_NEVER; 1189 return ManagedApplicationService.build(mContext, component, userId, 1190 R.string.vr_listener_binding_label, Settings.ACTION_VR_LISTENER_SETTINGS, 1191 sBinderChecker, /*isImportant*/true, retryType, mHandler, mEventCallback); 1192 } 1193 1194 /** 1195 * Helper function for making ManagedApplicationService for VR Compositor instances. 1196 */ createVrCompositorService(@onNull ComponentName component, int userId)1197 private ManagedApplicationService createVrCompositorService(@NonNull ComponentName component, 1198 int userId) { 1199 int retryType = (mBootsToVr) ? ManagedApplicationService.RETRY_FOREVER 1200 : ManagedApplicationService.RETRY_BEST_EFFORT; 1201 return ManagedApplicationService.build(mContext, component, userId, /*clientLabel*/0, 1202 /*settingsAction*/null, /*binderChecker*/null, /*isImportant*/true, retryType, 1203 mHandler, /*disconnectCallback*/mEventCallback); 1204 } 1205 1206 /** 1207 * Apply the pending VR state. If no state is pending, disconnect any currently bound 1208 * VR listener service. 1209 */ consumeAndApplyPendingStateLocked()1210 private void consumeAndApplyPendingStateLocked() { 1211 consumeAndApplyPendingStateLocked(true); 1212 } 1213 1214 /** 1215 * Apply the pending VR state. 1216 * 1217 * @param disconnectIfNoPendingState if {@code true}, then any currently bound VR listener 1218 * service will be disconnected if no state is pending. If this is {@code false} then the 1219 * nothing will be changed when there is no pending state. 1220 */ consumeAndApplyPendingStateLocked(boolean disconnectIfNoPendingState)1221 private void consumeAndApplyPendingStateLocked(boolean disconnectIfNoPendingState) { 1222 if (mPendingState != null) { 1223 updateCurrentVrServiceLocked(mPendingState.enabled, mPendingState.running2dInVr, 1224 mPendingState.targetPackageName, mPendingState.userId, mPendingState.processId, 1225 mPendingState.callingPackage); 1226 mPendingState = null; 1227 } else if (disconnectIfNoPendingState) { 1228 updateCurrentVrServiceLocked(false, false, null, 0, -1, null); 1229 } 1230 } 1231 logStateLocked()1232 private void logStateLocked() { 1233 ComponentName currentBoundService = (mCurrentVrService == null) ? null : 1234 mCurrentVrService.getComponent(); 1235 logEvent(new VrState(mVrModeEnabled, mRunning2dInVr, currentBoundService, 1236 mCurrentVrModeUser, mVrAppProcessId, mCurrentVrModeComponent, mWasDefaultGranted)); 1237 } 1238 logEvent(LogFormattable event)1239 private void logEvent(LogFormattable event) { 1240 synchronized (mLoggingDeque) { 1241 if (mLoggingDeque.size() == EVENT_LOG_SIZE) { 1242 mLoggingDeque.removeFirst(); 1243 mLogLimitHit = true; 1244 } 1245 mLoggingDeque.add(event); 1246 } 1247 } 1248 dumpStateTransitions(PrintWriter pw)1249 private void dumpStateTransitions(PrintWriter pw) { 1250 SimpleDateFormat d = new SimpleDateFormat("MM-dd HH:mm:ss.SSS"); 1251 synchronized (mLoggingDeque) { 1252 if (mLoggingDeque.size() == 0) { 1253 pw.print(" "); 1254 pw.println("None"); 1255 } 1256 1257 if (mLogLimitHit) { 1258 pw.println("..."); // Indicates log overflow 1259 } 1260 1261 for (LogFormattable event : mLoggingDeque) { 1262 pw.println(event.toLogString(d)); 1263 } 1264 } 1265 } 1266 1267 /* 1268 * Implementation of VrManagerInternal calls. These are callable from system services. 1269 */ setVrMode(boolean enabled, @NonNull ComponentName targetPackageName, int userId, int processId, @NonNull ComponentName callingPackage)1270 private void setVrMode(boolean enabled, @NonNull ComponentName targetPackageName, 1271 int userId, int processId, @NonNull ComponentName callingPackage) { 1272 1273 synchronized (mLock) { 1274 VrState pending; 1275 ComponentName targetListener; 1276 1277 // If the device is in persistent VR mode, then calls to disable VR mode are ignored, 1278 // and the system default VR listener is used. 1279 boolean targetEnabledState = enabled || mPersistentVrModeEnabled; 1280 boolean running2dInVr = !enabled && mPersistentVrModeEnabled; 1281 if (running2dInVr) { 1282 targetListener = mDefaultVrService; 1283 } else { 1284 targetListener = targetPackageName; 1285 } 1286 1287 pending = new VrState(targetEnabledState, running2dInVr, targetListener, 1288 userId, processId, callingPackage); 1289 1290 if (!mVrModeAllowed) { 1291 // We're not allowed to be in VR mode. Make this state pending. This will be 1292 // applied the next time we are allowed to enter VR mode unless it is superseded by 1293 // another call. 1294 mPendingState = pending; 1295 return; 1296 } 1297 1298 if (!targetEnabledState && mCurrentVrService != null) { 1299 // If we're transitioning out of VR mode, delay briefly to avoid expensive HAL calls 1300 // and service bind/unbind in case we are immediately switching to another VR app. 1301 if (mPendingState == null) { 1302 mHandler.sendEmptyMessageDelayed(MSG_PENDING_VR_STATE_CHANGE, 1303 PENDING_STATE_DELAY_MS); 1304 } 1305 1306 mPendingState = pending; 1307 return; 1308 } else { 1309 mHandler.removeMessages(MSG_PENDING_VR_STATE_CHANGE); 1310 mPendingState = null; 1311 } 1312 1313 updateCurrentVrServiceLocked(targetEnabledState, running2dInVr, targetListener, 1314 userId, processId, callingPackage); 1315 } 1316 } 1317 setPersistentVrModeEnabled(boolean enabled)1318 private void setPersistentVrModeEnabled(boolean enabled) { 1319 synchronized(mLock) { 1320 setPersistentModeAndNotifyListenersLocked(enabled); 1321 // Disabling persistent mode should disable the overall vr mode. 1322 if (!enabled) { 1323 setVrMode(false, null, 0, -1, null); 1324 } 1325 } 1326 } 1327 setVr2dDisplayProperties( Vr2dDisplayProperties compatDisplayProp)1328 public void setVr2dDisplayProperties( 1329 Vr2dDisplayProperties compatDisplayProp) { 1330 final long token = Binder.clearCallingIdentity(); 1331 try { 1332 if (mVr2dDisplay != null) { 1333 mVr2dDisplay.setVirtualDisplayProperties(compatDisplayProp); 1334 return; 1335 } 1336 } finally { 1337 Binder.restoreCallingIdentity(token); 1338 } 1339 Slog.w(TAG, "Vr2dDisplay is null!"); 1340 } 1341 getVr2dDisplayId()1342 private int getVr2dDisplayId() { 1343 if (mVr2dDisplay != null) { 1344 return mVr2dDisplay.getVirtualDisplayId(); 1345 } 1346 Slog.w(TAG, "Vr2dDisplay is null!"); 1347 return INVALID_DISPLAY; 1348 } 1349 setAndBindCompositor(ComponentName componentName)1350 private void setAndBindCompositor(ComponentName componentName) { 1351 final int userId = UserHandle.getCallingUserId(); 1352 final long token = Binder.clearCallingIdentity(); 1353 try { 1354 synchronized (mLock) { 1355 updateCompositorServiceLocked(userId, componentName); 1356 } 1357 } finally { 1358 Binder.restoreCallingIdentity(token); 1359 } 1360 } 1361 updateCompositorServiceLocked(int userId, ComponentName componentName)1362 private void updateCompositorServiceLocked(int userId, ComponentName componentName) { 1363 if (mCurrentVrCompositorService != null 1364 && mCurrentVrCompositorService.disconnectIfNotMatching(componentName, userId)) { 1365 Slog.i(TAG, "Disconnecting compositor service: " 1366 + mCurrentVrCompositorService.getComponent()); 1367 // Check if existing service matches the requested one, if not (or if the requested 1368 // component is null) disconnect it. 1369 mCurrentVrCompositorService = null; 1370 } 1371 1372 if (componentName != null && mCurrentVrCompositorService == null) { 1373 // We don't have an existing service matching the requested component, so attempt to 1374 // connect one. 1375 Slog.i(TAG, "Connecting compositor service: " + componentName); 1376 mCurrentVrCompositorService = createVrCompositorService(componentName, userId); 1377 mCurrentVrCompositorService.connect(); 1378 } 1379 } 1380 setPersistentModeAndNotifyListenersLocked(boolean enabled)1381 private void setPersistentModeAndNotifyListenersLocked(boolean enabled) { 1382 if (mPersistentVrModeEnabled == enabled) { 1383 return; 1384 } 1385 String eventName = "Persistent VR mode " + ((enabled) ? "enabled" : "disabled"); 1386 Slog.i(TAG, eventName); 1387 logEvent(new SettingEvent(eventName)); 1388 mPersistentVrModeEnabled = enabled; 1389 1390 mHandler.sendMessage(mHandler.obtainMessage(MSG_PERSISTENT_VR_MODE_STATE_CHANGE, 1391 (mPersistentVrModeEnabled) ? 1 : 0, 0)); 1392 } 1393 hasVrPackage(@onNull ComponentName targetPackageName, int userId)1394 private int hasVrPackage(@NonNull ComponentName targetPackageName, int userId) { 1395 synchronized (mLock) { 1396 return mComponentObserver.isValid(targetPackageName, userId); 1397 } 1398 } 1399 isCurrentVrListener(String packageName, int userId)1400 private boolean isCurrentVrListener(String packageName, int userId) { 1401 synchronized (mLock) { 1402 if (mCurrentVrService == null) { 1403 return false; 1404 } 1405 return mCurrentVrService.getComponent().getPackageName().equals(packageName) && 1406 userId == mCurrentVrService.getUserId(); 1407 } 1408 } 1409 1410 /* 1411 * Implementation of IVrManager calls. 1412 */ 1413 addStateCallback(IVrStateCallbacks cb)1414 private void addStateCallback(IVrStateCallbacks cb) { 1415 mVrStateRemoteCallbacks.register(cb); 1416 } 1417 removeStateCallback(IVrStateCallbacks cb)1418 private void removeStateCallback(IVrStateCallbacks cb) { 1419 mVrStateRemoteCallbacks.unregister(cb); 1420 } 1421 addPersistentStateCallback(IPersistentVrStateCallbacks cb)1422 private void addPersistentStateCallback(IPersistentVrStateCallbacks cb) { 1423 mPersistentVrStateRemoteCallbacks.register(cb); 1424 } 1425 removePersistentStateCallback(IPersistentVrStateCallbacks cb)1426 private void removePersistentStateCallback(IPersistentVrStateCallbacks cb) { 1427 mPersistentVrStateRemoteCallbacks.unregister(cb); 1428 } 1429 getVrMode()1430 private boolean getVrMode() { 1431 synchronized (mLock) { 1432 return mVrModeEnabled; 1433 } 1434 } 1435 getPersistentVrMode()1436 private boolean getPersistentVrMode() { 1437 synchronized (mLock) { 1438 return mPersistentVrModeEnabled; 1439 } 1440 } 1441 } 1442