WallpaperManagerService.java revision 9158825f9c41869689d6b1786d7c7aa8bdd524ce
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.server.wallpaper; 18 19import static android.os.ParcelFileDescriptor.*; 20 21import android.app.ActivityManagerNative; 22import android.app.AppGlobals; 23import android.app.IUserSwitchObserver; 24import android.app.IWallpaperManager; 25import android.app.IWallpaperManagerCallback; 26import android.app.PendingIntent; 27import android.app.WallpaperInfo; 28import android.app.backup.BackupManager; 29import android.app.backup.WallpaperBackupHelper; 30import android.content.BroadcastReceiver; 31import android.content.ComponentName; 32import android.content.Context; 33import android.content.Intent; 34import android.content.IntentFilter; 35import android.content.ServiceConnection; 36import android.content.pm.IPackageManager; 37import android.content.pm.PackageManager; 38import android.content.pm.ResolveInfo; 39import android.content.pm.ServiceInfo; 40import android.content.pm.PackageManager.NameNotFoundException; 41import android.content.pm.UserInfo; 42import android.content.res.Resources; 43import android.graphics.Point; 44import android.os.Binder; 45import android.os.Bundle; 46import android.os.Environment; 47import android.os.FileUtils; 48import android.os.IBinder; 49import android.os.IRemoteCallback; 50import android.os.RemoteException; 51import android.os.FileObserver; 52import android.os.ParcelFileDescriptor; 53import android.os.RemoteCallbackList; 54import android.os.SELinux; 55import android.os.ServiceManager; 56import android.os.SystemClock; 57import android.os.UserHandle; 58import android.os.UserManager; 59import android.service.wallpaper.IWallpaperConnection; 60import android.service.wallpaper.IWallpaperEngine; 61import android.service.wallpaper.IWallpaperService; 62import android.service.wallpaper.WallpaperService; 63import android.util.Slog; 64import android.util.SparseArray; 65import android.util.Xml; 66import android.view.Display; 67import android.view.IWindowManager; 68import android.view.WindowManager; 69 70import java.io.FileDescriptor; 71import java.io.IOException; 72import java.io.InputStream; 73import java.io.File; 74import java.io.FileNotFoundException; 75import java.io.FileInputStream; 76import java.io.FileOutputStream; 77import java.io.PrintWriter; 78import java.util.List; 79 80import org.xmlpull.v1.XmlPullParser; 81import org.xmlpull.v1.XmlPullParserException; 82import org.xmlpull.v1.XmlSerializer; 83 84import com.android.internal.content.PackageMonitor; 85import com.android.internal.util.FastXmlSerializer; 86import com.android.internal.util.JournaledFile; 87 88public class WallpaperManagerService extends IWallpaperManager.Stub { 89 static final String TAG = "WallpaperManagerService"; 90 static final boolean DEBUG = false; 91 92 final Object mLock = new Object[0]; 93 94 /** 95 * Minimum time between crashes of a wallpaper service for us to consider 96 * restarting it vs. just reverting to the static wallpaper. 97 */ 98 static final long MIN_WALLPAPER_CRASH_TIME = 10000; 99 static final String WALLPAPER = "wallpaper"; 100 static final String WALLPAPER_INFO = "wallpaper_info.xml"; 101 /** 102 * Name of the component used to display bitmap wallpapers from either the gallery or 103 * built-in wallpapers. 104 */ 105 static final ComponentName IMAGE_WALLPAPER = new ComponentName("com.android.systemui", 106 "com.android.systemui.ImageWallpaper"); 107 108 /** 109 * Observes the wallpaper for changes and notifies all IWallpaperServiceCallbacks 110 * that the wallpaper has changed. The CREATE is triggered when there is no 111 * wallpaper set and is created for the first time. The CLOSE_WRITE is triggered 112 * everytime the wallpaper is changed. 113 */ 114 private class WallpaperObserver extends FileObserver { 115 116 final WallpaperData mWallpaper; 117 final File mWallpaperDir; 118 final File mWallpaperFile; 119 120 public WallpaperObserver(WallpaperData wallpaper) { 121 super(getWallpaperDir(wallpaper.userId).getAbsolutePath(), 122 CLOSE_WRITE | DELETE | DELETE_SELF); 123 mWallpaperDir = getWallpaperDir(wallpaper.userId); 124 mWallpaper = wallpaper; 125 mWallpaperFile = new File(mWallpaperDir, WALLPAPER); 126 } 127 128 @Override 129 public void onEvent(int event, String path) { 130 if (path == null) { 131 return; 132 } 133 synchronized (mLock) { 134 // changing the wallpaper means we'll need to back up the new one 135 long origId = Binder.clearCallingIdentity(); 136 BackupManager bm = new BackupManager(mContext); 137 bm.dataChanged(); 138 Binder.restoreCallingIdentity(origId); 139 140 File changedFile = new File(mWallpaperDir, path); 141 if (mWallpaperFile.equals(changedFile)) { 142 notifyCallbacksLocked(mWallpaper); 143 if (mWallpaper.wallpaperComponent == null || event != CLOSE_WRITE 144 || mWallpaper.imageWallpaperPending) { 145 if (event == CLOSE_WRITE) { 146 mWallpaper.imageWallpaperPending = false; 147 } 148 bindWallpaperComponentLocked(IMAGE_WALLPAPER, true, 149 false, mWallpaper, null); 150 saveSettingsLocked(mWallpaper); 151 } 152 } 153 } 154 } 155 } 156 157 final Context mContext; 158 final IWindowManager mIWindowManager; 159 final IPackageManager mIPackageManager; 160 final MyPackageMonitor mMonitor; 161 WallpaperData mLastWallpaper; 162 163 SparseArray<WallpaperData> mWallpaperMap = new SparseArray<WallpaperData>(); 164 165 int mCurrentUserId; 166 167 static class WallpaperData { 168 169 int userId; 170 171 File wallpaperFile; 172 173 /** 174 * Client is currently writing a new image wallpaper. 175 */ 176 boolean imageWallpaperPending; 177 178 /** 179 * Resource name if using a picture from the wallpaper gallery 180 */ 181 String name = ""; 182 183 /** 184 * The component name of the currently set live wallpaper. 185 */ 186 ComponentName wallpaperComponent; 187 188 /** 189 * The component name of the wallpaper that should be set next. 190 */ 191 ComponentName nextWallpaperComponent; 192 193 WallpaperConnection connection; 194 long lastDiedTime; 195 boolean wallpaperUpdating; 196 WallpaperObserver wallpaperObserver; 197 198 /** 199 * List of callbacks registered they should each be notified when the wallpaper is changed. 200 */ 201 private RemoteCallbackList<IWallpaperManagerCallback> callbacks 202 = new RemoteCallbackList<IWallpaperManagerCallback>(); 203 204 int width = -1; 205 int height = -1; 206 207 WallpaperData(int userId) { 208 this.userId = userId; 209 wallpaperFile = new File(getWallpaperDir(userId), WALLPAPER); 210 } 211 } 212 213 class WallpaperConnection extends IWallpaperConnection.Stub 214 implements ServiceConnection { 215 final WallpaperInfo mInfo; 216 final Binder mToken = new Binder(); 217 IWallpaperService mService; 218 IWallpaperEngine mEngine; 219 WallpaperData mWallpaper; 220 IRemoteCallback mReply; 221 222 boolean mDimensionsChanged = false; 223 224 public WallpaperConnection(WallpaperInfo info, WallpaperData wallpaper) { 225 mInfo = info; 226 mWallpaper = wallpaper; 227 } 228 229 @Override 230 public void onServiceConnected(ComponentName name, IBinder service) { 231 synchronized (mLock) { 232 if (mWallpaper.connection == this) { 233 mWallpaper.lastDiedTime = SystemClock.uptimeMillis(); 234 mService = IWallpaperService.Stub.asInterface(service); 235 attachServiceLocked(this, mWallpaper); 236 // XXX should probably do saveSettingsLocked() later 237 // when we have an engine, but I'm not sure about 238 // locking there and anyway we always need to be able to 239 // recover if there is something wrong. 240 saveSettingsLocked(mWallpaper); 241 } 242 } 243 } 244 245 @Override 246 public void onServiceDisconnected(ComponentName name) { 247 synchronized (mLock) { 248 mService = null; 249 mEngine = null; 250 if (mWallpaper.connection == this) { 251 Slog.w(TAG, "Wallpaper service gone: " + mWallpaper.wallpaperComponent); 252 if (!mWallpaper.wallpaperUpdating 253 && (mWallpaper.lastDiedTime + MIN_WALLPAPER_CRASH_TIME) 254 > SystemClock.uptimeMillis() 255 && mWallpaper.userId == mCurrentUserId) { 256 Slog.w(TAG, "Reverting to built-in wallpaper!"); 257 clearWallpaperLocked(true, mWallpaper.userId, null); 258 } 259 } 260 } 261 } 262 263 @Override 264 public void attachEngine(IWallpaperEngine engine) { 265 synchronized (mLock) { 266 mEngine = engine; 267 if (mDimensionsChanged) { 268 try { 269 mEngine.setDesiredSize(mWallpaper.width, mWallpaper.height); 270 } catch (RemoteException e) { 271 Slog.w(TAG, "Failed to set wallpaper dimensions", e); 272 } 273 mDimensionsChanged = false; 274 } 275 } 276 } 277 278 @Override 279 public void engineShown(IWallpaperEngine engine) { 280 synchronized (mLock) { 281 if (mReply != null) { 282 long ident = Binder.clearCallingIdentity(); 283 try { 284 mReply.sendResult(null); 285 } catch (RemoteException e) { 286 Binder.restoreCallingIdentity(ident); 287 } 288 mReply = null; 289 } 290 } 291 } 292 293 @Override 294 public ParcelFileDescriptor setWallpaper(String name) { 295 synchronized (mLock) { 296 if (mWallpaper.connection == this) { 297 return updateWallpaperBitmapLocked(name, mWallpaper); 298 } 299 return null; 300 } 301 } 302 } 303 304 class MyPackageMonitor extends PackageMonitor { 305 @Override 306 public void onPackageUpdateFinished(String packageName, int uid) { 307 synchronized (mLock) { 308 if (mCurrentUserId != getChangingUserId()) { 309 return; 310 } 311 WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); 312 if (wallpaper != null) { 313 if (wallpaper.wallpaperComponent != null 314 && wallpaper.wallpaperComponent.getPackageName().equals(packageName)) { 315 wallpaper.wallpaperUpdating = false; 316 ComponentName comp = wallpaper.wallpaperComponent; 317 clearWallpaperComponentLocked(wallpaper); 318 if (!bindWallpaperComponentLocked(comp, false, false, 319 wallpaper, null)) { 320 Slog.w(TAG, "Wallpaper no longer available; reverting to default"); 321 clearWallpaperLocked(false, wallpaper.userId, null); 322 } 323 } 324 } 325 } 326 } 327 328 @Override 329 public void onPackageModified(String packageName) { 330 synchronized (mLock) { 331 if (mCurrentUserId != getChangingUserId()) { 332 return; 333 } 334 WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); 335 if (wallpaper != null) { 336 if (wallpaper.wallpaperComponent == null 337 || !wallpaper.wallpaperComponent.getPackageName().equals(packageName)) { 338 return; 339 } 340 doPackagesChangedLocked(true, wallpaper); 341 } 342 } 343 } 344 345 @Override 346 public void onPackageUpdateStarted(String packageName, int uid) { 347 synchronized (mLock) { 348 if (mCurrentUserId != getChangingUserId()) { 349 return; 350 } 351 WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); 352 if (wallpaper != null) { 353 if (wallpaper.wallpaperComponent != null 354 && wallpaper.wallpaperComponent.getPackageName().equals(packageName)) { 355 wallpaper.wallpaperUpdating = true; 356 } 357 } 358 } 359 } 360 361 @Override 362 public boolean onHandleForceStop(Intent intent, String[] packages, int uid, boolean doit) { 363 synchronized (mLock) { 364 boolean changed = false; 365 if (mCurrentUserId != getChangingUserId()) { 366 return false; 367 } 368 WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); 369 if (wallpaper != null) { 370 boolean res = doPackagesChangedLocked(doit, wallpaper); 371 changed |= res; 372 } 373 return changed; 374 } 375 } 376 377 @Override 378 public void onSomePackagesChanged() { 379 synchronized (mLock) { 380 if (mCurrentUserId != getChangingUserId()) { 381 return; 382 } 383 WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); 384 if (wallpaper != null) { 385 doPackagesChangedLocked(true, wallpaper); 386 } 387 } 388 } 389 390 boolean doPackagesChangedLocked(boolean doit, WallpaperData wallpaper) { 391 boolean changed = false; 392 if (wallpaper.wallpaperComponent != null) { 393 int change = isPackageDisappearing(wallpaper.wallpaperComponent 394 .getPackageName()); 395 if (change == PACKAGE_PERMANENT_CHANGE 396 || change == PACKAGE_TEMPORARY_CHANGE) { 397 changed = true; 398 if (doit) { 399 Slog.w(TAG, "Wallpaper uninstalled, removing: " 400 + wallpaper.wallpaperComponent); 401 clearWallpaperLocked(false, wallpaper.userId, null); 402 } 403 } 404 } 405 if (wallpaper.nextWallpaperComponent != null) { 406 int change = isPackageDisappearing(wallpaper.nextWallpaperComponent 407 .getPackageName()); 408 if (change == PACKAGE_PERMANENT_CHANGE 409 || change == PACKAGE_TEMPORARY_CHANGE) { 410 wallpaper.nextWallpaperComponent = null; 411 } 412 } 413 if (wallpaper.wallpaperComponent != null 414 && isPackageModified(wallpaper.wallpaperComponent.getPackageName())) { 415 try { 416 mContext.getPackageManager().getServiceInfo( 417 wallpaper.wallpaperComponent, 0); 418 } catch (NameNotFoundException e) { 419 Slog.w(TAG, "Wallpaper component gone, removing: " 420 + wallpaper.wallpaperComponent); 421 clearWallpaperLocked(false, wallpaper.userId, null); 422 } 423 } 424 if (wallpaper.nextWallpaperComponent != null 425 && isPackageModified(wallpaper.nextWallpaperComponent.getPackageName())) { 426 try { 427 mContext.getPackageManager().getServiceInfo( 428 wallpaper.nextWallpaperComponent, 0); 429 } catch (NameNotFoundException e) { 430 wallpaper.nextWallpaperComponent = null; 431 } 432 } 433 return changed; 434 } 435 } 436 437 public WallpaperManagerService(Context context) { 438 if (DEBUG) Slog.v(TAG, "WallpaperService startup"); 439 mContext = context; 440 mIWindowManager = IWindowManager.Stub.asInterface( 441 ServiceManager.getService(Context.WINDOW_SERVICE)); 442 mIPackageManager = AppGlobals.getPackageManager(); 443 mMonitor = new MyPackageMonitor(); 444 mMonitor.register(context, null, UserHandle.ALL, true); 445 getWallpaperDir(UserHandle.USER_OWNER).mkdirs(); 446 loadSettingsLocked(UserHandle.USER_OWNER); 447 } 448 449 private static File getWallpaperDir(int userId) { 450 return Environment.getUserSystemDirectory(userId); 451 } 452 453 @Override 454 protected void finalize() throws Throwable { 455 super.finalize(); 456 for (int i = 0; i < mWallpaperMap.size(); i++) { 457 WallpaperData wallpaper = mWallpaperMap.valueAt(i); 458 wallpaper.wallpaperObserver.stopWatching(); 459 } 460 } 461 462 public void systemRunning() { 463 if (DEBUG) Slog.v(TAG, "systemReady"); 464 WallpaperData wallpaper = mWallpaperMap.get(UserHandle.USER_OWNER); 465 switchWallpaper(wallpaper, null); 466 wallpaper.wallpaperObserver = new WallpaperObserver(wallpaper); 467 wallpaper.wallpaperObserver.startWatching(); 468 469 IntentFilter userFilter = new IntentFilter(); 470 userFilter.addAction(Intent.ACTION_USER_REMOVED); 471 userFilter.addAction(Intent.ACTION_USER_STOPPING); 472 mContext.registerReceiver(new BroadcastReceiver() { 473 @Override 474 public void onReceive(Context context, Intent intent) { 475 String action = intent.getAction(); 476 if (Intent.ACTION_USER_REMOVED.equals(action)) { 477 onRemoveUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 478 UserHandle.USER_NULL)); 479 } 480 // TODO: Race condition causing problems when cleaning up on stopping a user. 481 // Comment this out for now. 482 // else if (Intent.ACTION_USER_STOPPING.equals(action)) { 483 // onStoppingUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 484 // UserHandle.USER_NULL)); 485 // } 486 } 487 }, userFilter); 488 489 try { 490 ActivityManagerNative.getDefault().registerUserSwitchObserver( 491 new IUserSwitchObserver.Stub() { 492 @Override 493 public void onUserSwitching(int newUserId, IRemoteCallback reply) { 494 switchUser(newUserId, reply); 495 } 496 497 @Override 498 public void onUserSwitchComplete(int newUserId) throws RemoteException { 499 } 500 }); 501 } catch (RemoteException e) { 502 // TODO Auto-generated catch block 503 e.printStackTrace(); 504 } 505 } 506 507 /** Called by SystemBackupAgent */ 508 public String getName() { 509 // Verify caller is the system 510 if (Binder.getCallingUid() != android.os.Process.SYSTEM_UID) { 511 throw new RuntimeException("getName() can only be called from the system process"); 512 } 513 synchronized (mLock) { 514 return mWallpaperMap.get(0).name; 515 } 516 } 517 518 void onStoppingUser(int userId) { 519 if (userId < 1) return; 520 synchronized (mLock) { 521 WallpaperData wallpaper = mWallpaperMap.get(userId); 522 if (wallpaper != null) { 523 if (wallpaper.wallpaperObserver != null) { 524 wallpaper.wallpaperObserver.stopWatching(); 525 wallpaper.wallpaperObserver = null; 526 } 527 mWallpaperMap.remove(userId); 528 } 529 } 530 } 531 532 void onRemoveUser(int userId) { 533 if (userId < 1) return; 534 synchronized (mLock) { 535 onStoppingUser(userId); 536 File wallpaperFile = new File(getWallpaperDir(userId), WALLPAPER); 537 wallpaperFile.delete(); 538 File wallpaperInfoFile = new File(getWallpaperDir(userId), WALLPAPER_INFO); 539 wallpaperInfoFile.delete(); 540 } 541 } 542 543 void switchUser(int userId, IRemoteCallback reply) { 544 synchronized (mLock) { 545 mCurrentUserId = userId; 546 WallpaperData wallpaper = mWallpaperMap.get(userId); 547 if (wallpaper == null) { 548 wallpaper = new WallpaperData(userId); 549 mWallpaperMap.put(userId, wallpaper); 550 loadSettingsLocked(userId); 551 } 552 // Not started watching yet, in case wallpaper data was loaded for other reasons. 553 if (wallpaper.wallpaperObserver == null) { 554 wallpaper.wallpaperObserver = new WallpaperObserver(wallpaper); 555 wallpaper.wallpaperObserver.startWatching(); 556 } 557 switchWallpaper(wallpaper, reply); 558 } 559 } 560 561 void switchWallpaper(WallpaperData wallpaper, IRemoteCallback reply) { 562 synchronized (mLock) { 563 RuntimeException e = null; 564 try { 565 ComponentName cname = wallpaper.wallpaperComponent != null ? 566 wallpaper.wallpaperComponent : wallpaper.nextWallpaperComponent; 567 if (bindWallpaperComponentLocked(cname, true, false, wallpaper, reply)) { 568 return; 569 } 570 } catch (RuntimeException e1) { 571 e = e1; 572 } 573 Slog.w(TAG, "Failure starting previous wallpaper", e); 574 clearWallpaperLocked(false, wallpaper.userId, reply); 575 } 576 } 577 578 public void clearWallpaper() { 579 if (DEBUG) Slog.v(TAG, "clearWallpaper"); 580 synchronized (mLock) { 581 clearWallpaperLocked(false, UserHandle.getCallingUserId(), null); 582 } 583 } 584 585 void clearWallpaperLocked(boolean defaultFailed, int userId, IRemoteCallback reply) { 586 WallpaperData wallpaper = mWallpaperMap.get(userId); 587 File f = new File(getWallpaperDir(userId), WALLPAPER); 588 if (f.exists()) { 589 f.delete(); 590 } 591 final long ident = Binder.clearCallingIdentity(); 592 RuntimeException e = null; 593 try { 594 wallpaper.imageWallpaperPending = false; 595 if (userId != mCurrentUserId) return; 596 if (bindWallpaperComponentLocked(defaultFailed 597 ? IMAGE_WALLPAPER 598 : null, true, false, wallpaper, reply)) { 599 return; 600 } 601 } catch (IllegalArgumentException e1) { 602 e = e1; 603 } finally { 604 Binder.restoreCallingIdentity(ident); 605 } 606 607 // This can happen if the default wallpaper component doesn't 608 // exist. This should be a system configuration problem, but 609 // let's not let it crash the system and just live with no 610 // wallpaper. 611 Slog.e(TAG, "Default wallpaper component not found!", e); 612 clearWallpaperComponentLocked(wallpaper); 613 if (reply != null) { 614 try { 615 reply.sendResult(null); 616 } catch (RemoteException e1) { 617 } 618 } 619 } 620 621 public boolean hasNamedWallpaper(String name) { 622 synchronized (mLock) { 623 List<UserInfo> users; 624 long ident = Binder.clearCallingIdentity(); 625 try { 626 users = ((UserManager) mContext.getSystemService(Context.USER_SERVICE)).getUsers(); 627 } finally { 628 Binder.restoreCallingIdentity(ident); 629 } 630 for (UserInfo user: users) { 631 WallpaperData wd = mWallpaperMap.get(user.id); 632 if (wd == null) { 633 // User hasn't started yet, so load her settings to peek at the wallpaper 634 loadSettingsLocked(user.id); 635 wd = mWallpaperMap.get(user.id); 636 } 637 if (wd != null && name.equals(wd.name)) { 638 return true; 639 } 640 } 641 } 642 return false; 643 } 644 645 private Point getDefaultDisplaySize() { 646 Point p = new Point(); 647 WindowManager wm = (WindowManager)mContext.getSystemService(Context.WINDOW_SERVICE); 648 Display d = wm.getDefaultDisplay(); 649 d.getRealSize(p); 650 return p; 651 } 652 653 public void setDimensionHints(int width, int height) throws RemoteException { 654 checkPermission(android.Manifest.permission.SET_WALLPAPER_HINTS); 655 synchronized (mLock) { 656 int userId = UserHandle.getCallingUserId(); 657 WallpaperData wallpaper = mWallpaperMap.get(userId); 658 if (wallpaper == null) { 659 throw new IllegalStateException("Wallpaper not yet initialized for user " + userId); 660 } 661 if (width <= 0 || height <= 0) { 662 throw new IllegalArgumentException("width and height must be > 0"); 663 } 664 // Make sure it is at least as large as the display. 665 Point displaySize = getDefaultDisplaySize(); 666 width = Math.max(width, displaySize.x); 667 height = Math.max(height, displaySize.y); 668 669 if (width != wallpaper.width || height != wallpaper.height) { 670 wallpaper.width = width; 671 wallpaper.height = height; 672 saveSettingsLocked(wallpaper); 673 if (mCurrentUserId != userId) return; // Don't change the properties now 674 if (wallpaper.connection != null) { 675 if (wallpaper.connection.mEngine != null) { 676 try { 677 wallpaper.connection.mEngine.setDesiredSize( 678 width, height); 679 } catch (RemoteException e) { 680 } 681 notifyCallbacksLocked(wallpaper); 682 } else if (wallpaper.connection.mService != null) { 683 // We've attached to the service but the engine hasn't attached back to us 684 // yet. This means it will be created with the previous dimensions, so we 685 // need to update it to the new dimensions once it attaches. 686 wallpaper.connection.mDimensionsChanged = true; 687 } 688 } 689 } 690 } 691 } 692 693 public int getWidthHint() throws RemoteException { 694 synchronized (mLock) { 695 WallpaperData wallpaper = mWallpaperMap.get(UserHandle.getCallingUserId()); 696 return wallpaper.width; 697 } 698 } 699 700 public int getHeightHint() throws RemoteException { 701 synchronized (mLock) { 702 WallpaperData wallpaper = mWallpaperMap.get(UserHandle.getCallingUserId()); 703 return wallpaper.height; 704 } 705 } 706 707 public ParcelFileDescriptor getWallpaper(IWallpaperManagerCallback cb, 708 Bundle outParams) { 709 synchronized (mLock) { 710 // This returns the current user's wallpaper, if called by a system service. Else it 711 // returns the wallpaper for the calling user. 712 int callingUid = Binder.getCallingUid(); 713 int wallpaperUserId = 0; 714 if (callingUid == android.os.Process.SYSTEM_UID) { 715 wallpaperUserId = mCurrentUserId; 716 } else { 717 wallpaperUserId = UserHandle.getUserId(callingUid); 718 } 719 WallpaperData wallpaper = mWallpaperMap.get(wallpaperUserId); 720 try { 721 if (outParams != null) { 722 outParams.putInt("width", wallpaper.width); 723 outParams.putInt("height", wallpaper.height); 724 } 725 wallpaper.callbacks.register(cb); 726 File f = new File(getWallpaperDir(wallpaperUserId), WALLPAPER); 727 if (!f.exists()) { 728 return null; 729 } 730 return ParcelFileDescriptor.open(f, MODE_READ_ONLY); 731 } catch (FileNotFoundException e) { 732 /* Shouldn't happen as we check to see if the file exists */ 733 Slog.w(TAG, "Error getting wallpaper", e); 734 } 735 return null; 736 } 737 } 738 739 public WallpaperInfo getWallpaperInfo() { 740 int userId = UserHandle.getCallingUserId(); 741 synchronized (mLock) { 742 WallpaperData wallpaper = mWallpaperMap.get(userId); 743 if (wallpaper.connection != null) { 744 return wallpaper.connection.mInfo; 745 } 746 return null; 747 } 748 } 749 750 public ParcelFileDescriptor setWallpaper(String name) { 751 checkPermission(android.Manifest.permission.SET_WALLPAPER); 752 synchronized (mLock) { 753 if (DEBUG) Slog.v(TAG, "setWallpaper"); 754 int userId = UserHandle.getCallingUserId(); 755 WallpaperData wallpaper = mWallpaperMap.get(userId); 756 if (wallpaper == null) { 757 throw new IllegalStateException("Wallpaper not yet initialized for user " + userId); 758 } 759 final long ident = Binder.clearCallingIdentity(); 760 try { 761 ParcelFileDescriptor pfd = updateWallpaperBitmapLocked(name, wallpaper); 762 if (pfd != null) { 763 wallpaper.imageWallpaperPending = true; 764 } 765 return pfd; 766 } finally { 767 Binder.restoreCallingIdentity(ident); 768 } 769 } 770 } 771 772 ParcelFileDescriptor updateWallpaperBitmapLocked(String name, WallpaperData wallpaper) { 773 if (name == null) name = ""; 774 try { 775 File dir = getWallpaperDir(wallpaper.userId); 776 if (!dir.exists()) { 777 dir.mkdir(); 778 FileUtils.setPermissions( 779 dir.getPath(), 780 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 781 -1, -1); 782 } 783 File file = new File(dir, WALLPAPER); 784 ParcelFileDescriptor fd = ParcelFileDescriptor.open(file, 785 MODE_CREATE|MODE_READ_WRITE); 786 if (!SELinux.restorecon(file)) { 787 return null; 788 } 789 wallpaper.name = name; 790 return fd; 791 } catch (FileNotFoundException e) { 792 Slog.w(TAG, "Error setting wallpaper", e); 793 } 794 return null; 795 } 796 797 public void setWallpaperComponent(ComponentName name) { 798 checkPermission(android.Manifest.permission.SET_WALLPAPER_COMPONENT); 799 synchronized (mLock) { 800 if (DEBUG) Slog.v(TAG, "setWallpaperComponent name=" + name); 801 int userId = UserHandle.getCallingUserId(); 802 WallpaperData wallpaper = mWallpaperMap.get(userId); 803 if (wallpaper == null) { 804 throw new IllegalStateException("Wallpaper not yet initialized for user " + userId); 805 } 806 final long ident = Binder.clearCallingIdentity(); 807 try { 808 wallpaper.imageWallpaperPending = false; 809 bindWallpaperComponentLocked(name, false, true, wallpaper, null); 810 } finally { 811 Binder.restoreCallingIdentity(ident); 812 } 813 } 814 } 815 816 boolean bindWallpaperComponentLocked(ComponentName componentName, boolean force, 817 boolean fromUser, WallpaperData wallpaper, IRemoteCallback reply) { 818 if (DEBUG) Slog.v(TAG, "bindWallpaperComponentLocked: componentName=" + componentName); 819 // Has the component changed? 820 if (!force) { 821 if (wallpaper.connection != null) { 822 if (wallpaper.wallpaperComponent == null) { 823 if (componentName == null) { 824 if (DEBUG) Slog.v(TAG, "bindWallpaperComponentLocked: still using default"); 825 // Still using default wallpaper. 826 return true; 827 } 828 } else if (wallpaper.wallpaperComponent.equals(componentName)) { 829 // Changing to same wallpaper. 830 if (DEBUG) Slog.v(TAG, "same wallpaper"); 831 return true; 832 } 833 } 834 } 835 836 try { 837 if (componentName == null) { 838 String defaultComponent = 839 mContext.getString(com.android.internal.R.string.default_wallpaper_component); 840 if (defaultComponent != null) { 841 // See if there is a default wallpaper component specified 842 componentName = ComponentName.unflattenFromString(defaultComponent); 843 if (DEBUG) Slog.v(TAG, "Use default component wallpaper:" + componentName); 844 } 845 if (componentName == null) { 846 // Fall back to static image wallpaper 847 componentName = IMAGE_WALLPAPER; 848 //clearWallpaperComponentLocked(); 849 //return; 850 if (DEBUG) Slog.v(TAG, "Using image wallpaper"); 851 } 852 } 853 int serviceUserId = wallpaper.userId; 854 ServiceInfo si = mIPackageManager.getServiceInfo(componentName, 855 PackageManager.GET_META_DATA | PackageManager.GET_PERMISSIONS, serviceUserId); 856 if (si == null) { 857 // The wallpaper component we're trying to use doesn't exist 858 Slog.w(TAG, "Attempted wallpaper " + componentName + " is unavailable"); 859 return false; 860 } 861 if (!android.Manifest.permission.BIND_WALLPAPER.equals(si.permission)) { 862 String msg = "Selected service does not require " 863 + android.Manifest.permission.BIND_WALLPAPER 864 + ": " + componentName; 865 if (fromUser) { 866 throw new SecurityException(msg); 867 } 868 Slog.w(TAG, msg); 869 return false; 870 } 871 872 WallpaperInfo wi = null; 873 874 Intent intent = new Intent(WallpaperService.SERVICE_INTERFACE); 875 if (componentName != null && !componentName.equals(IMAGE_WALLPAPER)) { 876 // Make sure the selected service is actually a wallpaper service. 877 List<ResolveInfo> ris = 878 mIPackageManager.queryIntentServices(intent, 879 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 880 PackageManager.GET_META_DATA, serviceUserId); 881 for (int i=0; i<ris.size(); i++) { 882 ServiceInfo rsi = ris.get(i).serviceInfo; 883 if (rsi.name.equals(si.name) && 884 rsi.packageName.equals(si.packageName)) { 885 try { 886 wi = new WallpaperInfo(mContext, ris.get(i)); 887 } catch (XmlPullParserException e) { 888 if (fromUser) { 889 throw new IllegalArgumentException(e); 890 } 891 Slog.w(TAG, e); 892 return false; 893 } catch (IOException e) { 894 if (fromUser) { 895 throw new IllegalArgumentException(e); 896 } 897 Slog.w(TAG, e); 898 return false; 899 } 900 break; 901 } 902 } 903 if (wi == null) { 904 String msg = "Selected service is not a wallpaper: " 905 + componentName; 906 if (fromUser) { 907 throw new SecurityException(msg); 908 } 909 Slog.w(TAG, msg); 910 return false; 911 } 912 } 913 914 // Bind the service! 915 if (DEBUG) Slog.v(TAG, "Binding to:" + componentName); 916 WallpaperConnection newConn = new WallpaperConnection(wi, wallpaper); 917 intent.setComponent(componentName); 918 intent.putExtra(Intent.EXTRA_CLIENT_LABEL, 919 com.android.internal.R.string.wallpaper_binding_label); 920 intent.putExtra(Intent.EXTRA_CLIENT_INTENT, PendingIntent.getActivityAsUser( 921 mContext, 0, 922 Intent.createChooser(new Intent(Intent.ACTION_SET_WALLPAPER), 923 mContext.getText(com.android.internal.R.string.chooser_wallpaper)), 924 0, null, new UserHandle(serviceUserId))); 925 if (!mContext.bindServiceAsUser(intent, newConn, 926 Context.BIND_AUTO_CREATE | Context.BIND_SHOWING_UI, 927 new UserHandle(serviceUserId))) { 928 String msg = "Unable to bind service: " 929 + componentName; 930 if (fromUser) { 931 throw new IllegalArgumentException(msg); 932 } 933 Slog.w(TAG, msg); 934 return false; 935 } 936 if (wallpaper.userId == mCurrentUserId && mLastWallpaper != null) { 937 detachWallpaperLocked(mLastWallpaper); 938 } 939 wallpaper.wallpaperComponent = componentName; 940 wallpaper.connection = newConn; 941 wallpaper.lastDiedTime = SystemClock.uptimeMillis(); 942 newConn.mReply = reply; 943 try { 944 if (wallpaper.userId == mCurrentUserId) { 945 if (DEBUG) 946 Slog.v(TAG, "Adding window token: " + newConn.mToken); 947 mIWindowManager.addWindowToken(newConn.mToken, 948 WindowManager.LayoutParams.TYPE_WALLPAPER); 949 mLastWallpaper = wallpaper; 950 } 951 } catch (RemoteException e) { 952 } 953 } catch (RemoteException e) { 954 String msg = "Remote exception for " + componentName + "\n" + e; 955 if (fromUser) { 956 throw new IllegalArgumentException(msg); 957 } 958 Slog.w(TAG, msg); 959 return false; 960 } 961 return true; 962 } 963 964 void detachWallpaperLocked(WallpaperData wallpaper) { 965 if (wallpaper.connection != null) { 966 if (wallpaper.connection.mReply != null) { 967 try { 968 wallpaper.connection.mReply.sendResult(null); 969 } catch (RemoteException e) { 970 } 971 wallpaper.connection.mReply = null; 972 } 973 if (wallpaper.connection.mEngine != null) { 974 try { 975 wallpaper.connection.mEngine.destroy(); 976 } catch (RemoteException e) { 977 } 978 } 979 mContext.unbindService(wallpaper.connection); 980 try { 981 if (DEBUG) 982 Slog.v(TAG, "Removing window token: " + wallpaper.connection.mToken); 983 mIWindowManager.removeWindowToken(wallpaper.connection.mToken); 984 } catch (RemoteException e) { 985 } 986 wallpaper.connection.mService = null; 987 wallpaper.connection.mEngine = null; 988 wallpaper.connection = null; 989 } 990 } 991 992 void clearWallpaperComponentLocked(WallpaperData wallpaper) { 993 wallpaper.wallpaperComponent = null; 994 detachWallpaperLocked(wallpaper); 995 } 996 997 void attachServiceLocked(WallpaperConnection conn, WallpaperData wallpaper) { 998 try { 999 conn.mService.attach(conn, conn.mToken, 1000 WindowManager.LayoutParams.TYPE_WALLPAPER, false, 1001 wallpaper.width, wallpaper.height); 1002 } catch (RemoteException e) { 1003 Slog.w(TAG, "Failed attaching wallpaper; clearing", e); 1004 if (!wallpaper.wallpaperUpdating) { 1005 bindWallpaperComponentLocked(null, false, false, wallpaper, null); 1006 } 1007 } 1008 } 1009 1010 private void notifyCallbacksLocked(WallpaperData wallpaper) { 1011 final int n = wallpaper.callbacks.beginBroadcast(); 1012 for (int i = 0; i < n; i++) { 1013 try { 1014 wallpaper.callbacks.getBroadcastItem(i).onWallpaperChanged(); 1015 } catch (RemoteException e) { 1016 1017 // The RemoteCallbackList will take care of removing 1018 // the dead object for us. 1019 } 1020 } 1021 wallpaper.callbacks.finishBroadcast(); 1022 final Intent intent = new Intent(Intent.ACTION_WALLPAPER_CHANGED); 1023 mContext.sendBroadcastAsUser(intent, new UserHandle(mCurrentUserId)); 1024 } 1025 1026 private void checkPermission(String permission) { 1027 if (PackageManager.PERMISSION_GRANTED!= mContext.checkCallingOrSelfPermission(permission)) { 1028 throw new SecurityException("Access denied to process: " + Binder.getCallingPid() 1029 + ", must have permission " + permission); 1030 } 1031 } 1032 1033 private static JournaledFile makeJournaledFile(int userId) { 1034 final String base = new File(getWallpaperDir(userId), WALLPAPER_INFO).getAbsolutePath(); 1035 return new JournaledFile(new File(base), new File(base + ".tmp")); 1036 } 1037 1038 private void saveSettingsLocked(WallpaperData wallpaper) { 1039 JournaledFile journal = makeJournaledFile(wallpaper.userId); 1040 FileOutputStream stream = null; 1041 try { 1042 stream = new FileOutputStream(journal.chooseForWrite(), false); 1043 XmlSerializer out = new FastXmlSerializer(); 1044 out.setOutput(stream, "utf-8"); 1045 out.startDocument(null, true); 1046 1047 out.startTag(null, "wp"); 1048 out.attribute(null, "width", Integer.toString(wallpaper.width)); 1049 out.attribute(null, "height", Integer.toString(wallpaper.height)); 1050 out.attribute(null, "name", wallpaper.name); 1051 if (wallpaper.wallpaperComponent != null 1052 && !wallpaper.wallpaperComponent.equals(IMAGE_WALLPAPER)) { 1053 out.attribute(null, "component", 1054 wallpaper.wallpaperComponent.flattenToShortString()); 1055 } 1056 out.endTag(null, "wp"); 1057 1058 out.endDocument(); 1059 stream.close(); 1060 journal.commit(); 1061 } catch (IOException e) { 1062 try { 1063 if (stream != null) { 1064 stream.close(); 1065 } 1066 } catch (IOException ex) { 1067 // Ignore 1068 } 1069 journal.rollback(); 1070 } 1071 } 1072 1073 private void migrateFromOld() { 1074 File oldWallpaper = new File(WallpaperBackupHelper.WALLPAPER_IMAGE_KEY); 1075 File oldInfo = new File(WallpaperBackupHelper.WALLPAPER_INFO_KEY); 1076 if (oldWallpaper.exists()) { 1077 File newWallpaper = new File(getWallpaperDir(0), WALLPAPER); 1078 oldWallpaper.renameTo(newWallpaper); 1079 } 1080 if (oldInfo.exists()) { 1081 File newInfo = new File(getWallpaperDir(0), WALLPAPER_INFO); 1082 oldInfo.renameTo(newInfo); 1083 } 1084 } 1085 1086 private void loadSettingsLocked(int userId) { 1087 if (DEBUG) Slog.v(TAG, "loadSettingsLocked"); 1088 1089 JournaledFile journal = makeJournaledFile(userId); 1090 FileInputStream stream = null; 1091 File file = journal.chooseForRead(); 1092 if (!file.exists()) { 1093 // This should only happen one time, when upgrading from a legacy system 1094 migrateFromOld(); 1095 } 1096 WallpaperData wallpaper = mWallpaperMap.get(userId); 1097 if (wallpaper == null) { 1098 wallpaper = new WallpaperData(userId); 1099 mWallpaperMap.put(userId, wallpaper); 1100 } 1101 boolean success = false; 1102 try { 1103 stream = new FileInputStream(file); 1104 XmlPullParser parser = Xml.newPullParser(); 1105 parser.setInput(stream, null); 1106 1107 int type; 1108 do { 1109 type = parser.next(); 1110 if (type == XmlPullParser.START_TAG) { 1111 String tag = parser.getName(); 1112 if ("wp".equals(tag)) { 1113 wallpaper.width = Integer.parseInt(parser.getAttributeValue(null, "width")); 1114 wallpaper.height = Integer.parseInt(parser 1115 .getAttributeValue(null, "height")); 1116 wallpaper.name = parser.getAttributeValue(null, "name"); 1117 String comp = parser.getAttributeValue(null, "component"); 1118 wallpaper.nextWallpaperComponent = comp != null 1119 ? ComponentName.unflattenFromString(comp) 1120 : null; 1121 if (wallpaper.nextWallpaperComponent == null 1122 || "android".equals(wallpaper.nextWallpaperComponent 1123 .getPackageName())) { 1124 wallpaper.nextWallpaperComponent = IMAGE_WALLPAPER; 1125 } 1126 1127 if (DEBUG) { 1128 Slog.v(TAG, "mWidth:" + wallpaper.width); 1129 Slog.v(TAG, "mHeight:" + wallpaper.height); 1130 Slog.v(TAG, "mName:" + wallpaper.name); 1131 Slog.v(TAG, "mNextWallpaperComponent:" 1132 + wallpaper.nextWallpaperComponent); 1133 } 1134 } 1135 } 1136 } while (type != XmlPullParser.END_DOCUMENT); 1137 success = true; 1138 } catch (FileNotFoundException e) { 1139 Slog.w(TAG, "no current wallpaper -- first boot?"); 1140 } catch (NullPointerException e) { 1141 Slog.w(TAG, "failed parsing " + file + " " + e); 1142 } catch (NumberFormatException e) { 1143 Slog.w(TAG, "failed parsing " + file + " " + e); 1144 } catch (XmlPullParserException e) { 1145 Slog.w(TAG, "failed parsing " + file + " " + e); 1146 } catch (IOException e) { 1147 Slog.w(TAG, "failed parsing " + file + " " + e); 1148 } catch (IndexOutOfBoundsException e) { 1149 Slog.w(TAG, "failed parsing " + file + " " + e); 1150 } 1151 try { 1152 if (stream != null) { 1153 stream.close(); 1154 } 1155 } catch (IOException e) { 1156 // Ignore 1157 } 1158 1159 if (!success) { 1160 wallpaper.width = -1; 1161 wallpaper.height = -1; 1162 wallpaper.name = ""; 1163 } 1164 1165 // We always want to have some reasonable width hint. 1166 int baseSize = getMaximumSizeDimension(); 1167 if (wallpaper.width < baseSize) { 1168 wallpaper.width = baseSize; 1169 } 1170 if (wallpaper.height < baseSize) { 1171 wallpaper.height = baseSize; 1172 } 1173 } 1174 1175 private int getMaximumSizeDimension() { 1176 WindowManager wm = (WindowManager)mContext.getSystemService(Context.WINDOW_SERVICE); 1177 Display d = wm.getDefaultDisplay(); 1178 return d.getMaximumSizeDimension(); 1179 } 1180 1181 // Called by SystemBackupAgent after files are restored to disk. 1182 public void settingsRestored() { 1183 // Verify caller is the system 1184 if (Binder.getCallingUid() != android.os.Process.SYSTEM_UID) { 1185 throw new RuntimeException("settingsRestored() can only be called from the system process"); 1186 } 1187 // TODO: If necessary, make it work for secondary users as well. This currently assumes 1188 // restores only to the primary user 1189 if (DEBUG) Slog.v(TAG, "settingsRestored"); 1190 WallpaperData wallpaper = null; 1191 boolean success = false; 1192 synchronized (mLock) { 1193 loadSettingsLocked(0); 1194 wallpaper = mWallpaperMap.get(0); 1195 if (wallpaper.nextWallpaperComponent != null 1196 && !wallpaper.nextWallpaperComponent.equals(IMAGE_WALLPAPER)) { 1197 if (!bindWallpaperComponentLocked(wallpaper.nextWallpaperComponent, false, false, 1198 wallpaper, null)) { 1199 // No such live wallpaper or other failure; fall back to the default 1200 // live wallpaper (since the profile being restored indicated that the 1201 // user had selected a live rather than static one). 1202 bindWallpaperComponentLocked(null, false, false, wallpaper, null); 1203 } 1204 success = true; 1205 } else { 1206 // If there's a wallpaper name, we use that. If that can't be loaded, then we 1207 // use the default. 1208 if ("".equals(wallpaper.name)) { 1209 if (DEBUG) Slog.v(TAG, "settingsRestored: name is empty"); 1210 success = true; 1211 } else { 1212 if (DEBUG) Slog.v(TAG, "settingsRestored: attempting to restore named resource"); 1213 success = restoreNamedResourceLocked(wallpaper); 1214 } 1215 if (DEBUG) Slog.v(TAG, "settingsRestored: success=" + success); 1216 if (success) { 1217 bindWallpaperComponentLocked(wallpaper.nextWallpaperComponent, false, false, 1218 wallpaper, null); 1219 } 1220 } 1221 } 1222 1223 if (!success) { 1224 Slog.e(TAG, "Failed to restore wallpaper: '" + wallpaper.name + "'"); 1225 wallpaper.name = ""; 1226 getWallpaperDir(0).delete(); 1227 } 1228 1229 synchronized (mLock) { 1230 saveSettingsLocked(wallpaper); 1231 } 1232 } 1233 1234 boolean restoreNamedResourceLocked(WallpaperData wallpaper) { 1235 if (wallpaper.name.length() > 4 && "res:".equals(wallpaper.name.substring(0, 4))) { 1236 String resName = wallpaper.name.substring(4); 1237 1238 String pkg = null; 1239 int colon = resName.indexOf(':'); 1240 if (colon > 0) { 1241 pkg = resName.substring(0, colon); 1242 } 1243 1244 String ident = null; 1245 int slash = resName.lastIndexOf('/'); 1246 if (slash > 0) { 1247 ident = resName.substring(slash+1); 1248 } 1249 1250 String type = null; 1251 if (colon > 0 && slash > 0 && (slash-colon) > 1) { 1252 type = resName.substring(colon+1, slash); 1253 } 1254 1255 if (pkg != null && ident != null && type != null) { 1256 int resId = -1; 1257 InputStream res = null; 1258 FileOutputStream fos = null; 1259 try { 1260 Context c = mContext.createPackageContext(pkg, Context.CONTEXT_RESTRICTED); 1261 Resources r = c.getResources(); 1262 resId = r.getIdentifier(resName, null, null); 1263 if (resId == 0) { 1264 Slog.e(TAG, "couldn't resolve identifier pkg=" + pkg + " type=" + type 1265 + " ident=" + ident); 1266 return false; 1267 } 1268 1269 res = r.openRawResource(resId); 1270 if (wallpaper.wallpaperFile.exists()) { 1271 wallpaper.wallpaperFile.delete(); 1272 } 1273 fos = new FileOutputStream(wallpaper.wallpaperFile); 1274 1275 byte[] buffer = new byte[32768]; 1276 int amt; 1277 while ((amt=res.read(buffer)) > 0) { 1278 fos.write(buffer, 0, amt); 1279 } 1280 // mWallpaperObserver will notice the close and send the change broadcast 1281 1282 Slog.v(TAG, "Restored wallpaper: " + resName); 1283 return true; 1284 } catch (NameNotFoundException e) { 1285 Slog.e(TAG, "Package name " + pkg + " not found"); 1286 } catch (Resources.NotFoundException e) { 1287 Slog.e(TAG, "Resource not found: " + resId); 1288 } catch (IOException e) { 1289 Slog.e(TAG, "IOException while restoring wallpaper ", e); 1290 } finally { 1291 if (res != null) { 1292 try { 1293 res.close(); 1294 } catch (IOException ex) {} 1295 } 1296 if (fos != null) { 1297 FileUtils.sync(fos); 1298 try { 1299 fos.close(); 1300 } catch (IOException ex) {} 1301 } 1302 } 1303 } 1304 } 1305 return false; 1306 } 1307 1308 @Override 1309 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 1310 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 1311 != PackageManager.PERMISSION_GRANTED) { 1312 1313 pw.println("Permission Denial: can't dump wallpaper service from from pid=" 1314 + Binder.getCallingPid() 1315 + ", uid=" + Binder.getCallingUid()); 1316 return; 1317 } 1318 1319 synchronized (mLock) { 1320 pw.println("Current Wallpaper Service state:"); 1321 for (int i = 0; i < mWallpaperMap.size(); i++) { 1322 WallpaperData wallpaper = mWallpaperMap.valueAt(i); 1323 pw.println(" User " + wallpaper.userId + ":"); 1324 pw.print(" mWidth="); 1325 pw.print(wallpaper.width); 1326 pw.print(" mHeight="); 1327 pw.println(wallpaper.height); 1328 pw.print(" mName="); 1329 pw.println(wallpaper.name); 1330 pw.print(" mWallpaperComponent="); 1331 pw.println(wallpaper.wallpaperComponent); 1332 if (wallpaper.connection != null) { 1333 WallpaperConnection conn = wallpaper.connection; 1334 pw.print(" Wallpaper connection "); 1335 pw.print(conn); 1336 pw.println(":"); 1337 if (conn.mInfo != null) { 1338 pw.print(" mInfo.component="); 1339 pw.println(conn.mInfo.getComponent()); 1340 } 1341 pw.print(" mToken="); 1342 pw.println(conn.mToken); 1343 pw.print(" mService="); 1344 pw.println(conn.mService); 1345 pw.print(" mEngine="); 1346 pw.println(conn.mEngine); 1347 pw.print(" mLastDiedTime="); 1348 pw.println(wallpaper.lastDiedTime - SystemClock.uptimeMillis()); 1349 } 1350 } 1351 } 1352 } 1353} 1354