WallpaperManagerService.java revision ebebadb56d6b3eab6e11dae9d48d639f0af4946d
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 mService = IWallpaperService.Stub.asInterface(service); 234 attachServiceLocked(this, mWallpaper); 235 // XXX should probably do saveSettingsLocked() later 236 // when we have an engine, but I'm not sure about 237 // locking there and anyway we always need to be able to 238 // recover if there is something wrong. 239 saveSettingsLocked(mWallpaper); 240 } 241 } 242 } 243 244 @Override 245 public void onServiceDisconnected(ComponentName name) { 246 synchronized (mLock) { 247 mService = null; 248 mEngine = null; 249 if (mWallpaper.connection == this) { 250 Slog.w(TAG, "Wallpaper service gone: " + mWallpaper.wallpaperComponent); 251 if (!mWallpaper.wallpaperUpdating 252 && mWallpaper.userId == mCurrentUserId) { 253 // There is a race condition which causes 254 // {@link #mWallpaper.wallpaperUpdating} to be false even if it is 255 // currently updating since the broadcast notifying us is async. 256 // This race is overcome by the general rule that we only reset the 257 // wallpaper if its service was shut down twice 258 // during {@link #MIN_WALLPAPER_CRASH_TIME} millis. 259 if (mWallpaper.lastDiedTime != 0 260 && mWallpaper.lastDiedTime + MIN_WALLPAPER_CRASH_TIME 261 > SystemClock.uptimeMillis()) { 262 Slog.w(TAG, "Reverting to built-in wallpaper!"); 263 clearWallpaperLocked(true, mWallpaper.userId, null); 264 } else { 265 mWallpaper.lastDiedTime = SystemClock.uptimeMillis(); 266 } 267 } 268 } 269 } 270 } 271 272 @Override 273 public void attachEngine(IWallpaperEngine engine) { 274 synchronized (mLock) { 275 mEngine = engine; 276 if (mDimensionsChanged) { 277 try { 278 mEngine.setDesiredSize(mWallpaper.width, mWallpaper.height); 279 } catch (RemoteException e) { 280 Slog.w(TAG, "Failed to set wallpaper dimensions", e); 281 } 282 mDimensionsChanged = false; 283 } 284 } 285 } 286 287 @Override 288 public void engineShown(IWallpaperEngine engine) { 289 synchronized (mLock) { 290 if (mReply != null) { 291 long ident = Binder.clearCallingIdentity(); 292 try { 293 mReply.sendResult(null); 294 } catch (RemoteException e) { 295 Binder.restoreCallingIdentity(ident); 296 } 297 mReply = null; 298 } 299 } 300 } 301 302 @Override 303 public ParcelFileDescriptor setWallpaper(String name) { 304 synchronized (mLock) { 305 if (mWallpaper.connection == this) { 306 return updateWallpaperBitmapLocked(name, mWallpaper); 307 } 308 return null; 309 } 310 } 311 } 312 313 class MyPackageMonitor extends PackageMonitor { 314 @Override 315 public void onPackageUpdateFinished(String packageName, int uid) { 316 synchronized (mLock) { 317 if (mCurrentUserId != getChangingUserId()) { 318 return; 319 } 320 WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); 321 if (wallpaper != null) { 322 if (wallpaper.wallpaperComponent != null 323 && wallpaper.wallpaperComponent.getPackageName().equals(packageName)) { 324 wallpaper.wallpaperUpdating = false; 325 ComponentName comp = wallpaper.wallpaperComponent; 326 clearWallpaperComponentLocked(wallpaper); 327 if (!bindWallpaperComponentLocked(comp, false, false, 328 wallpaper, null)) { 329 Slog.w(TAG, "Wallpaper no longer available; reverting to default"); 330 clearWallpaperLocked(false, wallpaper.userId, null); 331 } 332 } 333 } 334 } 335 } 336 337 @Override 338 public void onPackageModified(String packageName) { 339 synchronized (mLock) { 340 if (mCurrentUserId != getChangingUserId()) { 341 return; 342 } 343 WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); 344 if (wallpaper != null) { 345 if (wallpaper.wallpaperComponent == null 346 || !wallpaper.wallpaperComponent.getPackageName().equals(packageName)) { 347 return; 348 } 349 doPackagesChangedLocked(true, wallpaper); 350 } 351 } 352 } 353 354 @Override 355 public void onPackageUpdateStarted(String packageName, int uid) { 356 synchronized (mLock) { 357 if (mCurrentUserId != getChangingUserId()) { 358 return; 359 } 360 WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); 361 if (wallpaper != null) { 362 if (wallpaper.wallpaperComponent != null 363 && wallpaper.wallpaperComponent.getPackageName().equals(packageName)) { 364 wallpaper.wallpaperUpdating = true; 365 } 366 } 367 } 368 } 369 370 @Override 371 public boolean onHandleForceStop(Intent intent, String[] packages, int uid, boolean doit) { 372 synchronized (mLock) { 373 boolean changed = false; 374 if (mCurrentUserId != getChangingUserId()) { 375 return false; 376 } 377 WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); 378 if (wallpaper != null) { 379 boolean res = doPackagesChangedLocked(doit, wallpaper); 380 changed |= res; 381 } 382 return changed; 383 } 384 } 385 386 @Override 387 public void onSomePackagesChanged() { 388 synchronized (mLock) { 389 if (mCurrentUserId != getChangingUserId()) { 390 return; 391 } 392 WallpaperData wallpaper = mWallpaperMap.get(mCurrentUserId); 393 if (wallpaper != null) { 394 doPackagesChangedLocked(true, wallpaper); 395 } 396 } 397 } 398 399 boolean doPackagesChangedLocked(boolean doit, WallpaperData wallpaper) { 400 boolean changed = false; 401 if (wallpaper.wallpaperComponent != null) { 402 int change = isPackageDisappearing(wallpaper.wallpaperComponent 403 .getPackageName()); 404 if (change == PACKAGE_PERMANENT_CHANGE 405 || change == PACKAGE_TEMPORARY_CHANGE) { 406 changed = true; 407 if (doit) { 408 Slog.w(TAG, "Wallpaper uninstalled, removing: " 409 + wallpaper.wallpaperComponent); 410 clearWallpaperLocked(false, wallpaper.userId, null); 411 } 412 } 413 } 414 if (wallpaper.nextWallpaperComponent != null) { 415 int change = isPackageDisappearing(wallpaper.nextWallpaperComponent 416 .getPackageName()); 417 if (change == PACKAGE_PERMANENT_CHANGE 418 || change == PACKAGE_TEMPORARY_CHANGE) { 419 wallpaper.nextWallpaperComponent = null; 420 } 421 } 422 if (wallpaper.wallpaperComponent != null 423 && isPackageModified(wallpaper.wallpaperComponent.getPackageName())) { 424 try { 425 mContext.getPackageManager().getServiceInfo( 426 wallpaper.wallpaperComponent, 0); 427 } catch (NameNotFoundException e) { 428 Slog.w(TAG, "Wallpaper component gone, removing: " 429 + wallpaper.wallpaperComponent); 430 clearWallpaperLocked(false, wallpaper.userId, null); 431 } 432 } 433 if (wallpaper.nextWallpaperComponent != null 434 && isPackageModified(wallpaper.nextWallpaperComponent.getPackageName())) { 435 try { 436 mContext.getPackageManager().getServiceInfo( 437 wallpaper.nextWallpaperComponent, 0); 438 } catch (NameNotFoundException e) { 439 wallpaper.nextWallpaperComponent = null; 440 } 441 } 442 return changed; 443 } 444 } 445 446 public WallpaperManagerService(Context context) { 447 if (DEBUG) Slog.v(TAG, "WallpaperService startup"); 448 mContext = context; 449 mIWindowManager = IWindowManager.Stub.asInterface( 450 ServiceManager.getService(Context.WINDOW_SERVICE)); 451 mIPackageManager = AppGlobals.getPackageManager(); 452 mMonitor = new MyPackageMonitor(); 453 mMonitor.register(context, null, UserHandle.ALL, true); 454 getWallpaperDir(UserHandle.USER_OWNER).mkdirs(); 455 loadSettingsLocked(UserHandle.USER_OWNER); 456 } 457 458 private static File getWallpaperDir(int userId) { 459 return Environment.getUserSystemDirectory(userId); 460 } 461 462 @Override 463 protected void finalize() throws Throwable { 464 super.finalize(); 465 for (int i = 0; i < mWallpaperMap.size(); i++) { 466 WallpaperData wallpaper = mWallpaperMap.valueAt(i); 467 wallpaper.wallpaperObserver.stopWatching(); 468 } 469 } 470 471 public void systemRunning() { 472 if (DEBUG) Slog.v(TAG, "systemReady"); 473 WallpaperData wallpaper = mWallpaperMap.get(UserHandle.USER_OWNER); 474 switchWallpaper(wallpaper, null); 475 wallpaper.wallpaperObserver = new WallpaperObserver(wallpaper); 476 wallpaper.wallpaperObserver.startWatching(); 477 478 IntentFilter userFilter = new IntentFilter(); 479 userFilter.addAction(Intent.ACTION_USER_REMOVED); 480 userFilter.addAction(Intent.ACTION_USER_STOPPING); 481 mContext.registerReceiver(new BroadcastReceiver() { 482 @Override 483 public void onReceive(Context context, Intent intent) { 484 String action = intent.getAction(); 485 if (Intent.ACTION_USER_REMOVED.equals(action)) { 486 onRemoveUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 487 UserHandle.USER_NULL)); 488 } 489 // TODO: Race condition causing problems when cleaning up on stopping a user. 490 // Comment this out for now. 491 // else if (Intent.ACTION_USER_STOPPING.equals(action)) { 492 // onStoppingUser(intent.getIntExtra(Intent.EXTRA_USER_HANDLE, 493 // UserHandle.USER_NULL)); 494 // } 495 } 496 }, userFilter); 497 498 try { 499 ActivityManagerNative.getDefault().registerUserSwitchObserver( 500 new IUserSwitchObserver.Stub() { 501 @Override 502 public void onUserSwitching(int newUserId, IRemoteCallback reply) { 503 switchUser(newUserId, reply); 504 } 505 506 @Override 507 public void onUserSwitchComplete(int newUserId) throws RemoteException { 508 } 509 }); 510 } catch (RemoteException e) { 511 // TODO Auto-generated catch block 512 e.printStackTrace(); 513 } 514 } 515 516 /** Called by SystemBackupAgent */ 517 public String getName() { 518 // Verify caller is the system 519 if (Binder.getCallingUid() != android.os.Process.SYSTEM_UID) { 520 throw new RuntimeException("getName() can only be called from the system process"); 521 } 522 synchronized (mLock) { 523 return mWallpaperMap.get(0).name; 524 } 525 } 526 527 void onStoppingUser(int userId) { 528 if (userId < 1) return; 529 synchronized (mLock) { 530 WallpaperData wallpaper = mWallpaperMap.get(userId); 531 if (wallpaper != null) { 532 if (wallpaper.wallpaperObserver != null) { 533 wallpaper.wallpaperObserver.stopWatching(); 534 wallpaper.wallpaperObserver = null; 535 } 536 mWallpaperMap.remove(userId); 537 } 538 } 539 } 540 541 void onRemoveUser(int userId) { 542 if (userId < 1) return; 543 synchronized (mLock) { 544 onStoppingUser(userId); 545 File wallpaperFile = new File(getWallpaperDir(userId), WALLPAPER); 546 wallpaperFile.delete(); 547 File wallpaperInfoFile = new File(getWallpaperDir(userId), WALLPAPER_INFO); 548 wallpaperInfoFile.delete(); 549 } 550 } 551 552 void switchUser(int userId, IRemoteCallback reply) { 553 synchronized (mLock) { 554 mCurrentUserId = userId; 555 WallpaperData wallpaper = mWallpaperMap.get(userId); 556 if (wallpaper == null) { 557 wallpaper = new WallpaperData(userId); 558 mWallpaperMap.put(userId, wallpaper); 559 loadSettingsLocked(userId); 560 } 561 // Not started watching yet, in case wallpaper data was loaded for other reasons. 562 if (wallpaper.wallpaperObserver == null) { 563 wallpaper.wallpaperObserver = new WallpaperObserver(wallpaper); 564 wallpaper.wallpaperObserver.startWatching(); 565 } 566 switchWallpaper(wallpaper, reply); 567 } 568 } 569 570 void switchWallpaper(WallpaperData wallpaper, IRemoteCallback reply) { 571 synchronized (mLock) { 572 RuntimeException e = null; 573 try { 574 ComponentName cname = wallpaper.wallpaperComponent != null ? 575 wallpaper.wallpaperComponent : wallpaper.nextWallpaperComponent; 576 if (bindWallpaperComponentLocked(cname, true, false, wallpaper, reply)) { 577 return; 578 } 579 } catch (RuntimeException e1) { 580 e = e1; 581 } 582 Slog.w(TAG, "Failure starting previous wallpaper", e); 583 clearWallpaperLocked(false, wallpaper.userId, reply); 584 } 585 } 586 587 public void clearWallpaper() { 588 if (DEBUG) Slog.v(TAG, "clearWallpaper"); 589 synchronized (mLock) { 590 clearWallpaperLocked(false, UserHandle.getCallingUserId(), null); 591 } 592 } 593 594 void clearWallpaperLocked(boolean defaultFailed, int userId, IRemoteCallback reply) { 595 WallpaperData wallpaper = mWallpaperMap.get(userId); 596 File f = new File(getWallpaperDir(userId), WALLPAPER); 597 if (f.exists()) { 598 f.delete(); 599 } 600 final long ident = Binder.clearCallingIdentity(); 601 RuntimeException e = null; 602 try { 603 wallpaper.imageWallpaperPending = false; 604 if (userId != mCurrentUserId) return; 605 if (bindWallpaperComponentLocked(defaultFailed 606 ? IMAGE_WALLPAPER 607 : null, true, false, wallpaper, reply)) { 608 return; 609 } 610 } catch (IllegalArgumentException e1) { 611 e = e1; 612 } finally { 613 Binder.restoreCallingIdentity(ident); 614 } 615 616 // This can happen if the default wallpaper component doesn't 617 // exist. This should be a system configuration problem, but 618 // let's not let it crash the system and just live with no 619 // wallpaper. 620 Slog.e(TAG, "Default wallpaper component not found!", e); 621 clearWallpaperComponentLocked(wallpaper); 622 if (reply != null) { 623 try { 624 reply.sendResult(null); 625 } catch (RemoteException e1) { 626 } 627 } 628 } 629 630 public boolean hasNamedWallpaper(String name) { 631 synchronized (mLock) { 632 List<UserInfo> users; 633 long ident = Binder.clearCallingIdentity(); 634 try { 635 users = ((UserManager) mContext.getSystemService(Context.USER_SERVICE)).getUsers(); 636 } finally { 637 Binder.restoreCallingIdentity(ident); 638 } 639 for (UserInfo user: users) { 640 WallpaperData wd = mWallpaperMap.get(user.id); 641 if (wd == null) { 642 // User hasn't started yet, so load her settings to peek at the wallpaper 643 loadSettingsLocked(user.id); 644 wd = mWallpaperMap.get(user.id); 645 } 646 if (wd != null && name.equals(wd.name)) { 647 return true; 648 } 649 } 650 } 651 return false; 652 } 653 654 private Point getDefaultDisplaySize() { 655 Point p = new Point(); 656 WindowManager wm = (WindowManager)mContext.getSystemService(Context.WINDOW_SERVICE); 657 Display d = wm.getDefaultDisplay(); 658 d.getRealSize(p); 659 return p; 660 } 661 662 public void setDimensionHints(int width, int height) throws RemoteException { 663 checkPermission(android.Manifest.permission.SET_WALLPAPER_HINTS); 664 synchronized (mLock) { 665 int userId = UserHandle.getCallingUserId(); 666 WallpaperData wallpaper = mWallpaperMap.get(userId); 667 if (wallpaper == null) { 668 throw new IllegalStateException("Wallpaper not yet initialized for user " + userId); 669 } 670 if (width <= 0 || height <= 0) { 671 throw new IllegalArgumentException("width and height must be > 0"); 672 } 673 // Make sure it is at least as large as the display. 674 Point displaySize = getDefaultDisplaySize(); 675 width = Math.max(width, displaySize.x); 676 height = Math.max(height, displaySize.y); 677 678 if (width != wallpaper.width || height != wallpaper.height) { 679 wallpaper.width = width; 680 wallpaper.height = height; 681 saveSettingsLocked(wallpaper); 682 if (mCurrentUserId != userId) return; // Don't change the properties now 683 if (wallpaper.connection != null) { 684 if (wallpaper.connection.mEngine != null) { 685 try { 686 wallpaper.connection.mEngine.setDesiredSize( 687 width, height); 688 } catch (RemoteException e) { 689 } 690 notifyCallbacksLocked(wallpaper); 691 } else if (wallpaper.connection.mService != null) { 692 // We've attached to the service but the engine hasn't attached back to us 693 // yet. This means it will be created with the previous dimensions, so we 694 // need to update it to the new dimensions once it attaches. 695 wallpaper.connection.mDimensionsChanged = true; 696 } 697 } 698 } 699 } 700 } 701 702 public int getWidthHint() throws RemoteException { 703 synchronized (mLock) { 704 WallpaperData wallpaper = mWallpaperMap.get(UserHandle.getCallingUserId()); 705 return wallpaper.width; 706 } 707 } 708 709 public int getHeightHint() throws RemoteException { 710 synchronized (mLock) { 711 WallpaperData wallpaper = mWallpaperMap.get(UserHandle.getCallingUserId()); 712 return wallpaper.height; 713 } 714 } 715 716 public ParcelFileDescriptor getWallpaper(IWallpaperManagerCallback cb, 717 Bundle outParams) { 718 synchronized (mLock) { 719 // This returns the current user's wallpaper, if called by a system service. Else it 720 // returns the wallpaper for the calling user. 721 int callingUid = Binder.getCallingUid(); 722 int wallpaperUserId = 0; 723 if (callingUid == android.os.Process.SYSTEM_UID) { 724 wallpaperUserId = mCurrentUserId; 725 } else { 726 wallpaperUserId = UserHandle.getUserId(callingUid); 727 } 728 WallpaperData wallpaper = mWallpaperMap.get(wallpaperUserId); 729 try { 730 if (outParams != null) { 731 outParams.putInt("width", wallpaper.width); 732 outParams.putInt("height", wallpaper.height); 733 } 734 wallpaper.callbacks.register(cb); 735 File f = new File(getWallpaperDir(wallpaperUserId), WALLPAPER); 736 if (!f.exists()) { 737 return null; 738 } 739 return ParcelFileDescriptor.open(f, MODE_READ_ONLY); 740 } catch (FileNotFoundException e) { 741 /* Shouldn't happen as we check to see if the file exists */ 742 Slog.w(TAG, "Error getting wallpaper", e); 743 } 744 return null; 745 } 746 } 747 748 public WallpaperInfo getWallpaperInfo() { 749 int userId = UserHandle.getCallingUserId(); 750 synchronized (mLock) { 751 WallpaperData wallpaper = mWallpaperMap.get(userId); 752 if (wallpaper.connection != null) { 753 return wallpaper.connection.mInfo; 754 } 755 return null; 756 } 757 } 758 759 public ParcelFileDescriptor setWallpaper(String name) { 760 checkPermission(android.Manifest.permission.SET_WALLPAPER); 761 synchronized (mLock) { 762 if (DEBUG) Slog.v(TAG, "setWallpaper"); 763 int userId = UserHandle.getCallingUserId(); 764 WallpaperData wallpaper = mWallpaperMap.get(userId); 765 if (wallpaper == null) { 766 throw new IllegalStateException("Wallpaper not yet initialized for user " + userId); 767 } 768 final long ident = Binder.clearCallingIdentity(); 769 try { 770 ParcelFileDescriptor pfd = updateWallpaperBitmapLocked(name, wallpaper); 771 if (pfd != null) { 772 wallpaper.imageWallpaperPending = true; 773 } 774 return pfd; 775 } finally { 776 Binder.restoreCallingIdentity(ident); 777 } 778 } 779 } 780 781 ParcelFileDescriptor updateWallpaperBitmapLocked(String name, WallpaperData wallpaper) { 782 if (name == null) name = ""; 783 try { 784 File dir = getWallpaperDir(wallpaper.userId); 785 if (!dir.exists()) { 786 dir.mkdir(); 787 FileUtils.setPermissions( 788 dir.getPath(), 789 FileUtils.S_IRWXU|FileUtils.S_IRWXG|FileUtils.S_IXOTH, 790 -1, -1); 791 } 792 File file = new File(dir, WALLPAPER); 793 ParcelFileDescriptor fd = ParcelFileDescriptor.open(file, 794 MODE_CREATE|MODE_READ_WRITE); 795 if (!SELinux.restorecon(file)) { 796 return null; 797 } 798 wallpaper.name = name; 799 return fd; 800 } catch (FileNotFoundException e) { 801 Slog.w(TAG, "Error setting wallpaper", e); 802 } 803 return null; 804 } 805 806 public void setWallpaperComponent(ComponentName name) { 807 checkPermission(android.Manifest.permission.SET_WALLPAPER_COMPONENT); 808 synchronized (mLock) { 809 if (DEBUG) Slog.v(TAG, "setWallpaperComponent name=" + name); 810 int userId = UserHandle.getCallingUserId(); 811 WallpaperData wallpaper = mWallpaperMap.get(userId); 812 if (wallpaper == null) { 813 throw new IllegalStateException("Wallpaper not yet initialized for user " + userId); 814 } 815 final long ident = Binder.clearCallingIdentity(); 816 try { 817 wallpaper.imageWallpaperPending = false; 818 bindWallpaperComponentLocked(name, false, true, wallpaper, null); 819 } finally { 820 Binder.restoreCallingIdentity(ident); 821 } 822 } 823 } 824 825 boolean bindWallpaperComponentLocked(ComponentName componentName, boolean force, 826 boolean fromUser, WallpaperData wallpaper, IRemoteCallback reply) { 827 if (DEBUG) Slog.v(TAG, "bindWallpaperComponentLocked: componentName=" + componentName); 828 // Has the component changed? 829 if (!force) { 830 if (wallpaper.connection != null) { 831 if (wallpaper.wallpaperComponent == null) { 832 if (componentName == null) { 833 if (DEBUG) Slog.v(TAG, "bindWallpaperComponentLocked: still using default"); 834 // Still using default wallpaper. 835 return true; 836 } 837 } else if (wallpaper.wallpaperComponent.equals(componentName)) { 838 // Changing to same wallpaper. 839 if (DEBUG) Slog.v(TAG, "same wallpaper"); 840 return true; 841 } 842 } 843 } 844 845 try { 846 if (componentName == null) { 847 String defaultComponent = 848 mContext.getString(com.android.internal.R.string.default_wallpaper_component); 849 if (defaultComponent != null) { 850 // See if there is a default wallpaper component specified 851 componentName = ComponentName.unflattenFromString(defaultComponent); 852 if (DEBUG) Slog.v(TAG, "Use default component wallpaper:" + componentName); 853 } 854 if (componentName == null) { 855 // Fall back to static image wallpaper 856 componentName = IMAGE_WALLPAPER; 857 //clearWallpaperComponentLocked(); 858 //return; 859 if (DEBUG) Slog.v(TAG, "Using image wallpaper"); 860 } 861 } 862 int serviceUserId = wallpaper.userId; 863 ServiceInfo si = mIPackageManager.getServiceInfo(componentName, 864 PackageManager.GET_META_DATA | PackageManager.GET_PERMISSIONS, serviceUserId); 865 if (si == null) { 866 // The wallpaper component we're trying to use doesn't exist 867 Slog.w(TAG, "Attempted wallpaper " + componentName + " is unavailable"); 868 return false; 869 } 870 if (!android.Manifest.permission.BIND_WALLPAPER.equals(si.permission)) { 871 String msg = "Selected service does not require " 872 + android.Manifest.permission.BIND_WALLPAPER 873 + ": " + componentName; 874 if (fromUser) { 875 throw new SecurityException(msg); 876 } 877 Slog.w(TAG, msg); 878 return false; 879 } 880 881 WallpaperInfo wi = null; 882 883 Intent intent = new Intent(WallpaperService.SERVICE_INTERFACE); 884 if (componentName != null && !componentName.equals(IMAGE_WALLPAPER)) { 885 // Make sure the selected service is actually a wallpaper service. 886 List<ResolveInfo> ris = 887 mIPackageManager.queryIntentServices(intent, 888 intent.resolveTypeIfNeeded(mContext.getContentResolver()), 889 PackageManager.GET_META_DATA, serviceUserId); 890 for (int i=0; i<ris.size(); i++) { 891 ServiceInfo rsi = ris.get(i).serviceInfo; 892 if (rsi.name.equals(si.name) && 893 rsi.packageName.equals(si.packageName)) { 894 try { 895 wi = new WallpaperInfo(mContext, ris.get(i)); 896 } catch (XmlPullParserException e) { 897 if (fromUser) { 898 throw new IllegalArgumentException(e); 899 } 900 Slog.w(TAG, e); 901 return false; 902 } catch (IOException e) { 903 if (fromUser) { 904 throw new IllegalArgumentException(e); 905 } 906 Slog.w(TAG, e); 907 return false; 908 } 909 break; 910 } 911 } 912 if (wi == null) { 913 String msg = "Selected service is not a wallpaper: " 914 + componentName; 915 if (fromUser) { 916 throw new SecurityException(msg); 917 } 918 Slog.w(TAG, msg); 919 return false; 920 } 921 } 922 923 // Bind the service! 924 if (DEBUG) Slog.v(TAG, "Binding to:" + componentName); 925 WallpaperConnection newConn = new WallpaperConnection(wi, wallpaper); 926 intent.setComponent(componentName); 927 intent.putExtra(Intent.EXTRA_CLIENT_LABEL, 928 com.android.internal.R.string.wallpaper_binding_label); 929 intent.putExtra(Intent.EXTRA_CLIENT_INTENT, PendingIntent.getActivityAsUser( 930 mContext, 0, 931 Intent.createChooser(new Intent(Intent.ACTION_SET_WALLPAPER), 932 mContext.getText(com.android.internal.R.string.chooser_wallpaper)), 933 0, null, new UserHandle(serviceUserId))); 934 if (!mContext.bindServiceAsUser(intent, newConn, 935 Context.BIND_AUTO_CREATE | Context.BIND_SHOWING_UI, 936 new UserHandle(serviceUserId))) { 937 String msg = "Unable to bind service: " 938 + componentName; 939 if (fromUser) { 940 throw new IllegalArgumentException(msg); 941 } 942 Slog.w(TAG, msg); 943 return false; 944 } 945 if (wallpaper.userId == mCurrentUserId && mLastWallpaper != null) { 946 detachWallpaperLocked(mLastWallpaper); 947 } 948 wallpaper.wallpaperComponent = componentName; 949 wallpaper.connection = newConn; 950 newConn.mReply = reply; 951 try { 952 if (wallpaper.userId == mCurrentUserId) { 953 if (DEBUG) 954 Slog.v(TAG, "Adding window token: " + newConn.mToken); 955 mIWindowManager.addWindowToken(newConn.mToken, 956 WindowManager.LayoutParams.TYPE_WALLPAPER); 957 mLastWallpaper = wallpaper; 958 } 959 } catch (RemoteException e) { 960 } 961 } catch (RemoteException e) { 962 String msg = "Remote exception for " + componentName + "\n" + e; 963 if (fromUser) { 964 throw new IllegalArgumentException(msg); 965 } 966 Slog.w(TAG, msg); 967 return false; 968 } 969 return true; 970 } 971 972 void detachWallpaperLocked(WallpaperData wallpaper) { 973 if (wallpaper.connection != null) { 974 if (wallpaper.connection.mReply != null) { 975 try { 976 wallpaper.connection.mReply.sendResult(null); 977 } catch (RemoteException e) { 978 } 979 wallpaper.connection.mReply = null; 980 } 981 if (wallpaper.connection.mEngine != null) { 982 try { 983 wallpaper.connection.mEngine.destroy(); 984 } catch (RemoteException e) { 985 } 986 } 987 mContext.unbindService(wallpaper.connection); 988 try { 989 if (DEBUG) 990 Slog.v(TAG, "Removing window token: " + wallpaper.connection.mToken); 991 mIWindowManager.removeWindowToken(wallpaper.connection.mToken); 992 } catch (RemoteException e) { 993 } 994 wallpaper.connection.mService = null; 995 wallpaper.connection.mEngine = null; 996 wallpaper.connection = null; 997 } 998 } 999 1000 void clearWallpaperComponentLocked(WallpaperData wallpaper) { 1001 wallpaper.wallpaperComponent = null; 1002 detachWallpaperLocked(wallpaper); 1003 } 1004 1005 void attachServiceLocked(WallpaperConnection conn, WallpaperData wallpaper) { 1006 try { 1007 conn.mService.attach(conn, conn.mToken, 1008 WindowManager.LayoutParams.TYPE_WALLPAPER, false, 1009 wallpaper.width, wallpaper.height); 1010 } catch (RemoteException e) { 1011 Slog.w(TAG, "Failed attaching wallpaper; clearing", e); 1012 if (!wallpaper.wallpaperUpdating) { 1013 bindWallpaperComponentLocked(null, false, false, wallpaper, null); 1014 } 1015 } 1016 } 1017 1018 private void notifyCallbacksLocked(WallpaperData wallpaper) { 1019 final int n = wallpaper.callbacks.beginBroadcast(); 1020 for (int i = 0; i < n; i++) { 1021 try { 1022 wallpaper.callbacks.getBroadcastItem(i).onWallpaperChanged(); 1023 } catch (RemoteException e) { 1024 1025 // The RemoteCallbackList will take care of removing 1026 // the dead object for us. 1027 } 1028 } 1029 wallpaper.callbacks.finishBroadcast(); 1030 final Intent intent = new Intent(Intent.ACTION_WALLPAPER_CHANGED); 1031 mContext.sendBroadcastAsUser(intent, new UserHandle(mCurrentUserId)); 1032 } 1033 1034 private void checkPermission(String permission) { 1035 if (PackageManager.PERMISSION_GRANTED!= mContext.checkCallingOrSelfPermission(permission)) { 1036 throw new SecurityException("Access denied to process: " + Binder.getCallingPid() 1037 + ", must have permission " + permission); 1038 } 1039 } 1040 1041 private static JournaledFile makeJournaledFile(int userId) { 1042 final String base = new File(getWallpaperDir(userId), WALLPAPER_INFO).getAbsolutePath(); 1043 return new JournaledFile(new File(base), new File(base + ".tmp")); 1044 } 1045 1046 private void saveSettingsLocked(WallpaperData wallpaper) { 1047 JournaledFile journal = makeJournaledFile(wallpaper.userId); 1048 FileOutputStream stream = null; 1049 try { 1050 stream = new FileOutputStream(journal.chooseForWrite(), false); 1051 XmlSerializer out = new FastXmlSerializer(); 1052 out.setOutput(stream, "utf-8"); 1053 out.startDocument(null, true); 1054 1055 out.startTag(null, "wp"); 1056 out.attribute(null, "width", Integer.toString(wallpaper.width)); 1057 out.attribute(null, "height", Integer.toString(wallpaper.height)); 1058 out.attribute(null, "name", wallpaper.name); 1059 if (wallpaper.wallpaperComponent != null 1060 && !wallpaper.wallpaperComponent.equals(IMAGE_WALLPAPER)) { 1061 out.attribute(null, "component", 1062 wallpaper.wallpaperComponent.flattenToShortString()); 1063 } 1064 out.endTag(null, "wp"); 1065 1066 out.endDocument(); 1067 stream.close(); 1068 journal.commit(); 1069 } catch (IOException e) { 1070 try { 1071 if (stream != null) { 1072 stream.close(); 1073 } 1074 } catch (IOException ex) { 1075 // Ignore 1076 } 1077 journal.rollback(); 1078 } 1079 } 1080 1081 private void migrateFromOld() { 1082 File oldWallpaper = new File(WallpaperBackupHelper.WALLPAPER_IMAGE_KEY); 1083 File oldInfo = new File(WallpaperBackupHelper.WALLPAPER_INFO_KEY); 1084 if (oldWallpaper.exists()) { 1085 File newWallpaper = new File(getWallpaperDir(0), WALLPAPER); 1086 oldWallpaper.renameTo(newWallpaper); 1087 } 1088 if (oldInfo.exists()) { 1089 File newInfo = new File(getWallpaperDir(0), WALLPAPER_INFO); 1090 oldInfo.renameTo(newInfo); 1091 } 1092 } 1093 1094 private void loadSettingsLocked(int userId) { 1095 if (DEBUG) Slog.v(TAG, "loadSettingsLocked"); 1096 1097 JournaledFile journal = makeJournaledFile(userId); 1098 FileInputStream stream = null; 1099 File file = journal.chooseForRead(); 1100 if (!file.exists()) { 1101 // This should only happen one time, when upgrading from a legacy system 1102 migrateFromOld(); 1103 } 1104 WallpaperData wallpaper = mWallpaperMap.get(userId); 1105 if (wallpaper == null) { 1106 wallpaper = new WallpaperData(userId); 1107 mWallpaperMap.put(userId, wallpaper); 1108 } 1109 boolean success = false; 1110 try { 1111 stream = new FileInputStream(file); 1112 XmlPullParser parser = Xml.newPullParser(); 1113 parser.setInput(stream, null); 1114 1115 int type; 1116 do { 1117 type = parser.next(); 1118 if (type == XmlPullParser.START_TAG) { 1119 String tag = parser.getName(); 1120 if ("wp".equals(tag)) { 1121 wallpaper.width = Integer.parseInt(parser.getAttributeValue(null, "width")); 1122 wallpaper.height = Integer.parseInt(parser 1123 .getAttributeValue(null, "height")); 1124 wallpaper.name = parser.getAttributeValue(null, "name"); 1125 String comp = parser.getAttributeValue(null, "component"); 1126 wallpaper.nextWallpaperComponent = comp != null 1127 ? ComponentName.unflattenFromString(comp) 1128 : null; 1129 if (wallpaper.nextWallpaperComponent == null 1130 || "android".equals(wallpaper.nextWallpaperComponent 1131 .getPackageName())) { 1132 wallpaper.nextWallpaperComponent = IMAGE_WALLPAPER; 1133 } 1134 1135 if (DEBUG) { 1136 Slog.v(TAG, "mWidth:" + wallpaper.width); 1137 Slog.v(TAG, "mHeight:" + wallpaper.height); 1138 Slog.v(TAG, "mName:" + wallpaper.name); 1139 Slog.v(TAG, "mNextWallpaperComponent:" 1140 + wallpaper.nextWallpaperComponent); 1141 } 1142 } 1143 } 1144 } while (type != XmlPullParser.END_DOCUMENT); 1145 success = true; 1146 } catch (FileNotFoundException e) { 1147 Slog.w(TAG, "no current wallpaper -- first boot?"); 1148 } catch (NullPointerException e) { 1149 Slog.w(TAG, "failed parsing " + file + " " + e); 1150 } catch (NumberFormatException e) { 1151 Slog.w(TAG, "failed parsing " + file + " " + e); 1152 } catch (XmlPullParserException e) { 1153 Slog.w(TAG, "failed parsing " + file + " " + e); 1154 } catch (IOException e) { 1155 Slog.w(TAG, "failed parsing " + file + " " + e); 1156 } catch (IndexOutOfBoundsException e) { 1157 Slog.w(TAG, "failed parsing " + file + " " + e); 1158 } 1159 try { 1160 if (stream != null) { 1161 stream.close(); 1162 } 1163 } catch (IOException e) { 1164 // Ignore 1165 } 1166 1167 if (!success) { 1168 wallpaper.width = -1; 1169 wallpaper.height = -1; 1170 wallpaper.name = ""; 1171 } 1172 1173 // We always want to have some reasonable width hint. 1174 int baseSize = getMaximumSizeDimension(); 1175 if (wallpaper.width < baseSize) { 1176 wallpaper.width = baseSize; 1177 } 1178 if (wallpaper.height < baseSize) { 1179 wallpaper.height = baseSize; 1180 } 1181 } 1182 1183 private int getMaximumSizeDimension() { 1184 WindowManager wm = (WindowManager)mContext.getSystemService(Context.WINDOW_SERVICE); 1185 Display d = wm.getDefaultDisplay(); 1186 return d.getMaximumSizeDimension(); 1187 } 1188 1189 // Called by SystemBackupAgent after files are restored to disk. 1190 public void settingsRestored() { 1191 // Verify caller is the system 1192 if (Binder.getCallingUid() != android.os.Process.SYSTEM_UID) { 1193 throw new RuntimeException("settingsRestored() can only be called from the system process"); 1194 } 1195 // TODO: If necessary, make it work for secondary users as well. This currently assumes 1196 // restores only to the primary user 1197 if (DEBUG) Slog.v(TAG, "settingsRestored"); 1198 WallpaperData wallpaper = null; 1199 boolean success = false; 1200 synchronized (mLock) { 1201 loadSettingsLocked(0); 1202 wallpaper = mWallpaperMap.get(0); 1203 if (wallpaper.nextWallpaperComponent != null 1204 && !wallpaper.nextWallpaperComponent.equals(IMAGE_WALLPAPER)) { 1205 if (!bindWallpaperComponentLocked(wallpaper.nextWallpaperComponent, false, false, 1206 wallpaper, null)) { 1207 // No such live wallpaper or other failure; fall back to the default 1208 // live wallpaper (since the profile being restored indicated that the 1209 // user had selected a live rather than static one). 1210 bindWallpaperComponentLocked(null, false, false, wallpaper, null); 1211 } 1212 success = true; 1213 } else { 1214 // If there's a wallpaper name, we use that. If that can't be loaded, then we 1215 // use the default. 1216 if ("".equals(wallpaper.name)) { 1217 if (DEBUG) Slog.v(TAG, "settingsRestored: name is empty"); 1218 success = true; 1219 } else { 1220 if (DEBUG) Slog.v(TAG, "settingsRestored: attempting to restore named resource"); 1221 success = restoreNamedResourceLocked(wallpaper); 1222 } 1223 if (DEBUG) Slog.v(TAG, "settingsRestored: success=" + success); 1224 if (success) { 1225 bindWallpaperComponentLocked(wallpaper.nextWallpaperComponent, false, false, 1226 wallpaper, null); 1227 } 1228 } 1229 } 1230 1231 if (!success) { 1232 Slog.e(TAG, "Failed to restore wallpaper: '" + wallpaper.name + "'"); 1233 wallpaper.name = ""; 1234 getWallpaperDir(0).delete(); 1235 } 1236 1237 synchronized (mLock) { 1238 saveSettingsLocked(wallpaper); 1239 } 1240 } 1241 1242 boolean restoreNamedResourceLocked(WallpaperData wallpaper) { 1243 if (wallpaper.name.length() > 4 && "res:".equals(wallpaper.name.substring(0, 4))) { 1244 String resName = wallpaper.name.substring(4); 1245 1246 String pkg = null; 1247 int colon = resName.indexOf(':'); 1248 if (colon > 0) { 1249 pkg = resName.substring(0, colon); 1250 } 1251 1252 String ident = null; 1253 int slash = resName.lastIndexOf('/'); 1254 if (slash > 0) { 1255 ident = resName.substring(slash+1); 1256 } 1257 1258 String type = null; 1259 if (colon > 0 && slash > 0 && (slash-colon) > 1) { 1260 type = resName.substring(colon+1, slash); 1261 } 1262 1263 if (pkg != null && ident != null && type != null) { 1264 int resId = -1; 1265 InputStream res = null; 1266 FileOutputStream fos = null; 1267 try { 1268 Context c = mContext.createPackageContext(pkg, Context.CONTEXT_RESTRICTED); 1269 Resources r = c.getResources(); 1270 resId = r.getIdentifier(resName, null, null); 1271 if (resId == 0) { 1272 Slog.e(TAG, "couldn't resolve identifier pkg=" + pkg + " type=" + type 1273 + " ident=" + ident); 1274 return false; 1275 } 1276 1277 res = r.openRawResource(resId); 1278 if (wallpaper.wallpaperFile.exists()) { 1279 wallpaper.wallpaperFile.delete(); 1280 } 1281 fos = new FileOutputStream(wallpaper.wallpaperFile); 1282 1283 byte[] buffer = new byte[32768]; 1284 int amt; 1285 while ((amt=res.read(buffer)) > 0) { 1286 fos.write(buffer, 0, amt); 1287 } 1288 // mWallpaperObserver will notice the close and send the change broadcast 1289 1290 Slog.v(TAG, "Restored wallpaper: " + resName); 1291 return true; 1292 } catch (NameNotFoundException e) { 1293 Slog.e(TAG, "Package name " + pkg + " not found"); 1294 } catch (Resources.NotFoundException e) { 1295 Slog.e(TAG, "Resource not found: " + resId); 1296 } catch (IOException e) { 1297 Slog.e(TAG, "IOException while restoring wallpaper ", e); 1298 } finally { 1299 if (res != null) { 1300 try { 1301 res.close(); 1302 } catch (IOException ex) {} 1303 } 1304 if (fos != null) { 1305 FileUtils.sync(fos); 1306 try { 1307 fos.close(); 1308 } catch (IOException ex) {} 1309 } 1310 } 1311 } 1312 } 1313 return false; 1314 } 1315 1316 @Override 1317 protected void dump(FileDescriptor fd, PrintWriter pw, String[] args) { 1318 if (mContext.checkCallingOrSelfPermission(android.Manifest.permission.DUMP) 1319 != PackageManager.PERMISSION_GRANTED) { 1320 1321 pw.println("Permission Denial: can't dump wallpaper service from from pid=" 1322 + Binder.getCallingPid() 1323 + ", uid=" + Binder.getCallingUid()); 1324 return; 1325 } 1326 1327 synchronized (mLock) { 1328 pw.println("Current Wallpaper Service state:"); 1329 for (int i = 0; i < mWallpaperMap.size(); i++) { 1330 WallpaperData wallpaper = mWallpaperMap.valueAt(i); 1331 pw.println(" User " + wallpaper.userId + ":"); 1332 pw.print(" mWidth="); 1333 pw.print(wallpaper.width); 1334 pw.print(" mHeight="); 1335 pw.println(wallpaper.height); 1336 pw.print(" mName="); 1337 pw.println(wallpaper.name); 1338 pw.print(" mWallpaperComponent="); 1339 pw.println(wallpaper.wallpaperComponent); 1340 if (wallpaper.connection != null) { 1341 WallpaperConnection conn = wallpaper.connection; 1342 pw.print(" Wallpaper connection "); 1343 pw.print(conn); 1344 pw.println(":"); 1345 if (conn.mInfo != null) { 1346 pw.print(" mInfo.component="); 1347 pw.println(conn.mInfo.getComponent()); 1348 } 1349 pw.print(" mToken="); 1350 pw.println(conn.mToken); 1351 pw.print(" mService="); 1352 pw.println(conn.mService); 1353 pw.print(" mEngine="); 1354 pw.println(conn.mEngine); 1355 pw.print(" mLastDiedTime="); 1356 pw.println(wallpaper.lastDiedTime - SystemClock.uptimeMillis()); 1357 } 1358 } 1359 } 1360 } 1361} 1362