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