LauncherModel.java revision 8481e32e5ba318d11c31317072a8a23aacd3d0b9
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.launcher3; 18 19import android.app.SearchManager; 20import android.appwidget.AppWidgetManager; 21import android.appwidget.AppWidgetProviderInfo; 22import android.content.*; 23import android.content.Intent.ShortcutIconResource; 24import android.content.pm.ActivityInfo; 25import android.content.pm.PackageInfo; 26import android.content.pm.PackageManager; 27import android.content.pm.PackageManager.NameNotFoundException; 28import android.content.pm.ResolveInfo; 29import android.content.res.Configuration; 30import android.content.res.Resources; 31import android.database.Cursor; 32import android.graphics.Bitmap; 33import android.graphics.BitmapFactory; 34import android.net.Uri; 35import android.os.Environment; 36import android.os.Handler; 37import android.os.HandlerThread; 38import android.os.Parcelable; 39import android.os.Process; 40import android.os.RemoteException; 41import android.os.SystemClock; 42import android.util.Log; 43import android.util.Pair; 44import com.android.launcher3.InstallWidgetReceiver.WidgetMimeTypeHandlerData; 45 46import java.lang.ref.WeakReference; 47import java.net.URISyntaxException; 48import java.text.Collator; 49import java.util.ArrayList; 50import java.util.Arrays; 51import java.util.Collection; 52import java.util.Collections; 53import java.util.Comparator; 54import java.util.HashMap; 55import java.util.HashSet; 56import java.util.Iterator; 57import java.util.List; 58import java.util.Set; 59import java.util.TreeMap; 60 61/** 62 * Maintains in-memory state of the Launcher. It is expected that there should be only one 63 * LauncherModel object held in a static. Also provide APIs for updating the database state 64 * for the Launcher. 65 */ 66public class LauncherModel extends BroadcastReceiver { 67 static final boolean DEBUG_LOADERS = false; 68 static final String TAG = "Launcher.Model"; 69 70 private static final int ITEMS_CHUNK = 6; // batch size for the workspace icons 71 private final boolean mAppsCanBeOnRemoveableStorage; 72 73 private final LauncherAppState mApp; 74 private final Object mLock = new Object(); 75 private DeferredHandler mHandler = new DeferredHandler(); 76 private LoaderTask mLoaderTask; 77 private boolean mIsLoaderTaskRunning; 78 private volatile boolean mFlushingWorkerThread; 79 80 // Specific runnable types that are run on the main thread deferred handler, this allows us to 81 // clear all queued binding runnables when the Launcher activity is destroyed. 82 private static final int MAIN_THREAD_NORMAL_RUNNABLE = 0; 83 private static final int MAIN_THREAD_BINDING_RUNNABLE = 1; 84 85 86 private static final HandlerThread sWorkerThread = new HandlerThread("launcher-loader"); 87 static { 88 sWorkerThread.start(); 89 } 90 private static final Handler sWorker = new Handler(sWorkerThread.getLooper()); 91 92 // We start off with everything not loaded. After that, we assume that 93 // our monitoring of the package manager provides all updates and we never 94 // need to do a requery. These are only ever touched from the loader thread. 95 private boolean mWorkspaceLoaded; 96 private boolean mAllAppsLoaded; 97 98 // When we are loading pages synchronously, we can't just post the binding of items on the side 99 // pages as this delays the rotation process. Instead, we wait for a callback from the first 100 // draw (in Workspace) to initiate the binding of the remaining side pages. Any time we start 101 // a normal load, we also clear this set of Runnables. 102 static final ArrayList<Runnable> mDeferredBindRunnables = new ArrayList<Runnable>(); 103 104 private WeakReference<Callbacks> mCallbacks; 105 106 // < only access in worker thread > 107 private AllAppsList mBgAllAppsList; 108 109 // The lock that must be acquired before referencing any static bg data structures. Unlike 110 // other locks, this one can generally be held long-term because we never expect any of these 111 // static data structures to be referenced outside of the worker thread except on the first 112 // load after configuration change. 113 static final Object sBgLock = new Object(); 114 115 // sBgItemsIdMap maps *all* the ItemInfos (shortcuts, folders, and widgets) created by 116 // LauncherModel to their ids 117 static final HashMap<Long, ItemInfo> sBgItemsIdMap = new HashMap<Long, ItemInfo>(); 118 119 // sBgWorkspaceItems is passed to bindItems, which expects a list of all folders and shortcuts 120 // created by LauncherModel that are directly on the home screen (however, no widgets or 121 // shortcuts within folders). 122 static final ArrayList<ItemInfo> sBgWorkspaceItems = new ArrayList<ItemInfo>(); 123 124 // sBgAppWidgets is all LauncherAppWidgetInfo created by LauncherModel. Passed to bindAppWidget() 125 static final ArrayList<LauncherAppWidgetInfo> sBgAppWidgets = 126 new ArrayList<LauncherAppWidgetInfo>(); 127 128 // sBgFolders is all FolderInfos created by LauncherModel. Passed to bindFolders() 129 static final HashMap<Long, FolderInfo> sBgFolders = new HashMap<Long, FolderInfo>(); 130 131 // sBgDbIconCache is the set of ItemInfos that need to have their icons updated in the database 132 static final HashMap<Object, byte[]> sBgDbIconCache = new HashMap<Object, byte[]>(); 133 134 // sBgWorkspaceScreens is the ordered set of workspace screens. 135 static final ArrayList<Long> sBgWorkspaceScreens = new ArrayList<Long>(); 136 137 // </ only access in worker thread > 138 139 private IconCache mIconCache; 140 private Bitmap mDefaultIcon; 141 142 private static int mCellCountX; 143 private static int mCellCountY; 144 145 protected int mPreviousConfigMcc; 146 147 public interface Callbacks { 148 public boolean setLoadOnResume(); 149 public int getCurrentWorkspaceScreen(); 150 public void startBinding(); 151 public void bindItems(ArrayList<ItemInfo> shortcuts, int start, int end, 152 boolean forceAnimateIcons); 153 public void bindScreens(ArrayList<Long> orderedScreenIds); 154 public void bindAddScreens(ArrayList<Long> orderedScreenIds); 155 public void bindFolders(HashMap<Long,FolderInfo> folders); 156 public void finishBindingItems(boolean upgradePath); 157 public void bindAppWidget(LauncherAppWidgetInfo info); 158 public void bindAllApplications(ArrayList<ApplicationInfo> apps); 159 public void bindAppsUpdated(ArrayList<ApplicationInfo> apps); 160 public void bindComponentsRemoved(ArrayList<String> packageNames, 161 ArrayList<ApplicationInfo> appInfos, 162 boolean matchPackageNamesOnly); 163 public void bindPackagesUpdated(ArrayList<Object> widgetsAndShortcuts); 164 public void bindSearchablesChanged(); 165 public void onPageBoundSynchronously(int page); 166 } 167 168 public interface ItemInfoFilter { 169 public boolean filterItem(ItemInfo parent, ItemInfo info, ComponentName cn); 170 } 171 172 LauncherModel(LauncherAppState app, IconCache iconCache) { 173 final Context context = app.getContext(); 174 175 mAppsCanBeOnRemoveableStorage = Environment.isExternalStorageRemovable(); 176 mApp = app; 177 mBgAllAppsList = new AllAppsList(iconCache); 178 mIconCache = iconCache; 179 180 mDefaultIcon = Utilities.createIconBitmap( 181 mIconCache.getFullResDefaultActivityIcon(), context); 182 183 final Resources res = context.getResources(); 184 Configuration config = res.getConfiguration(); 185 mPreviousConfigMcc = config.mcc; 186 } 187 188 /** Runs the specified runnable immediately if called from the main thread, otherwise it is 189 * posted on the main thread handler. */ 190 private void runOnMainThread(Runnable r) { 191 runOnMainThread(r, 0); 192 } 193 private void runOnMainThread(Runnable r, int type) { 194 if (sWorkerThread.getThreadId() == Process.myTid()) { 195 // If we are on the worker thread, post onto the main handler 196 mHandler.post(r); 197 } else { 198 r.run(); 199 } 200 } 201 202 /** Runs the specified runnable immediately if called from the worker thread, otherwise it is 203 * posted on the worker thread handler. */ 204 private static void runOnWorkerThread(Runnable r) { 205 if (sWorkerThread.getThreadId() == Process.myTid()) { 206 r.run(); 207 } else { 208 // If we are not on the worker thread, then post to the worker handler 209 sWorker.post(r); 210 } 211 } 212 213 static boolean findNextAvailableIconSpaceInScreen(ArrayList<ItemInfo> items, int[] xy, 214 long screen) { 215 final int xCount = LauncherModel.getCellCountX(); 216 final int yCount = LauncherModel.getCellCountY(); 217 boolean[][] occupied = new boolean[xCount][yCount]; 218 219 int cellX, cellY, spanX, spanY; 220 for (int i = 0; i < items.size(); ++i) { 221 final ItemInfo item = items.get(i); 222 if (item.container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 223 if (item.screenId == screen) { 224 cellX = item.cellX; 225 cellY = item.cellY; 226 spanX = item.spanX; 227 spanY = item.spanY; 228 for (int x = cellX; 0 <= x && x < cellX + spanX && x < xCount; x++) { 229 for (int y = cellY; 0 <= y && y < cellY + spanY && y < yCount; y++) { 230 occupied[x][y] = true; 231 } 232 } 233 } 234 } 235 } 236 237 return CellLayout.findVacantCell(xy, 1, 1, xCount, yCount, occupied); 238 } 239 static Pair<Long, int[]> findNextAvailableIconSpace(Context context, String name, 240 Intent launchIntent, 241 int firstScreenIndex) { 242 // Lock on the app so that we don't try and get the items while apps are being added 243 LauncherAppState app = LauncherAppState.getInstance(); 244 LauncherModel model = app.getModel(); 245 boolean found = false; 246 synchronized (app) { 247 if (sWorkerThread.getThreadId() != Process.myTid()) { 248 // Flush the LauncherModel worker thread, so that if we just did another 249 // processInstallShortcut, we give it time for its shortcut to get added to the 250 // database (getItemsInLocalCoordinates reads the database) 251 model.flushWorkerThread(); 252 } 253 final ArrayList<ItemInfo> items = LauncherModel.getItemsInLocalCoordinates(context); 254 255 // Try adding to the workspace screens incrementally, starting at the default or center 256 // screen and alternating between +1, -1, +2, -2, etc. (using ~ ceil(i/2f)*(-1)^(i-1)) 257 firstScreenIndex = Math.min(firstScreenIndex, sBgWorkspaceScreens.size()); 258 int count = sBgWorkspaceScreens.size(); 259 for (int screen = firstScreenIndex; screen < count && !found; screen++) { 260 int[] tmpCoordinates = new int[2]; 261 if (findNextAvailableIconSpaceInScreen(items, tmpCoordinates, 262 sBgWorkspaceScreens.get(screen))) { 263 // Update the Launcher db 264 return new Pair<Long, int[]>(sBgWorkspaceScreens.get(screen), tmpCoordinates); 265 } 266 } 267 } 268 return null; 269 } 270 271 public void addAndBindAddedApps(final Context context, final ArrayList<ItemInfo> added) { 272 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 273 addAndBindAddedApps(context, added, cb); 274 } 275 public void addAndBindAddedApps(final Context context, final ArrayList<ItemInfo> added, 276 final Callbacks callbacks) { 277 if (added.isEmpty()) { 278 throw new RuntimeException("EMPTY ADDED ARRAY?"); 279 } 280 // Process the newly added applications and add them to the database first 281 Runnable r = new Runnable() { 282 public void run() { 283 final ArrayList<ItemInfo> addedShortcutsFinal = new ArrayList<ItemInfo>(); 284 final ArrayList<Long> addedWorkspaceScreensFinal = new ArrayList<Long>(); 285 286 synchronized(sBgLock) { 287 Iterator<ItemInfo> iter = added.iterator(); 288 while (iter.hasNext()) { 289 ItemInfo a = iter.next(); 290 final String name = a.title.toString(); 291 final Intent launchIntent = a.getIntent(); 292 293 // Short-circuit this logic if the icon exists somewhere on the workspace 294 if (LauncherModel.shortcutExists(context, name, launchIntent)) { 295 continue; 296 } 297 298 // Add this icon to the db, creating a new page if necessary 299 int startSearchPageIndex = 1; 300 Pair<Long, int[]> coords = LauncherModel.findNextAvailableIconSpace(context, 301 name, launchIntent, startSearchPageIndex); 302 if (coords == null) { 303 LauncherAppState appState = LauncherAppState.getInstance(); 304 LauncherProvider lp = appState.getLauncherProvider(); 305 306 // If we can't find a valid position, then just add a new screen. 307 // This takes time so we need to re-queue the add until the new 308 // page is added. Create as many screens as necessary to satisfy 309 // the startSearchPageIndex. 310 int numPagesToAdd = Math.max(1, startSearchPageIndex + 1 - 311 sBgWorkspaceScreens.size()); 312 while (numPagesToAdd > 0) { 313 long screenId = lp.generateNewScreenId(); 314 Log.d(TAG, "10249126 - addAndBindAddedApps(" + screenId + ")"); 315 // Update the model 316 sBgWorkspaceScreens.add(screenId); 317 updateWorkspaceScreenOrder(context, sBgWorkspaceScreens); 318 // Save the screen id for binding in the workspace 319 addedWorkspaceScreensFinal.add(screenId); 320 numPagesToAdd--; 321 } 322 // Find the coordinate again 323 coords = LauncherModel.findNextAvailableIconSpace(context, 324 name, launchIntent, startSearchPageIndex); 325 } 326 if (coords == null) { 327 throw new RuntimeException("Coordinates should not be null"); 328 } 329 330 ShortcutInfo shortcutInfo; 331 if (a instanceof ShortcutInfo) { 332 shortcutInfo = (ShortcutInfo) a; 333 } else if (a instanceof ApplicationInfo) { 334 shortcutInfo = ((ApplicationInfo) a).makeShortcut(); 335 } else { 336 throw new RuntimeException("Unexpected info type"); 337 } 338 // Add the shortcut to the db 339 addItemToDatabase(context, shortcutInfo, 340 LauncherSettings.Favorites.CONTAINER_DESKTOP, 341 coords.first, coords.second[0], coords.second[1], false); 342 // Save the ShortcutInfo for binding in the workspace 343 addedShortcutsFinal.add(shortcutInfo); 344 } 345 } 346 347 if (!addedShortcutsFinal.isEmpty()) { 348 runOnMainThread(new Runnable() { 349 public void run() { 350 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 351 if (callbacks == cb && cb != null) { 352 callbacks.bindAddScreens(addedWorkspaceScreensFinal); 353 354 ItemInfo info = addedShortcutsFinal.get(addedShortcutsFinal.size() - 1); 355 long lastScreenId = info.screenId; 356 final ArrayList<ItemInfo> addAnimated = new ArrayList<ItemInfo>(); 357 final ArrayList<ItemInfo> addNotAnimated = new ArrayList<ItemInfo>(); 358 for (ItemInfo i : addedShortcutsFinal) { 359 if (i.screenId == lastScreenId) { 360 addAnimated.add(i); 361 } else { 362 addNotAnimated.add(i); 363 } 364 } 365 // We add the items without animation on non-visible pages, and with 366 // animations on the new page (which we will try and snap to). 367 if (!addNotAnimated.isEmpty()) { 368 callbacks.bindItems(addNotAnimated, 0, 369 addNotAnimated.size(), false); 370 } 371 if (!addAnimated.isEmpty()) { 372 callbacks.bindItems(addAnimated, 0, 373 addAnimated.size(), true); 374 } 375 } 376 } 377 }); 378 } 379 } 380 }; 381 runOnWorkerThread(r); 382 } 383 384 public Bitmap getFallbackIcon() { 385 return Bitmap.createBitmap(mDefaultIcon); 386 } 387 388 public void unbindItemInfosAndClearQueuedBindRunnables() { 389 if (sWorkerThread.getThreadId() == Process.myTid()) { 390 throw new RuntimeException("Expected unbindLauncherItemInfos() to be called from the " + 391 "main thread"); 392 } 393 394 // Clear any deferred bind runnables 395 mDeferredBindRunnables.clear(); 396 // Remove any queued bind runnables 397 mHandler.cancelAllRunnablesOfType(MAIN_THREAD_BINDING_RUNNABLE); 398 // Unbind all the workspace items 399 unbindWorkspaceItemsOnMainThread(); 400 } 401 402 /** Unbinds all the sBgWorkspaceItems and sBgAppWidgets on the main thread */ 403 void unbindWorkspaceItemsOnMainThread() { 404 // Ensure that we don't use the same workspace items data structure on the main thread 405 // by making a copy of workspace items first. 406 final ArrayList<ItemInfo> tmpWorkspaceItems = new ArrayList<ItemInfo>(); 407 final ArrayList<ItemInfo> tmpAppWidgets = new ArrayList<ItemInfo>(); 408 synchronized (sBgLock) { 409 tmpWorkspaceItems.addAll(sBgWorkspaceItems); 410 tmpAppWidgets.addAll(sBgAppWidgets); 411 } 412 Runnable r = new Runnable() { 413 @Override 414 public void run() { 415 for (ItemInfo item : tmpWorkspaceItems) { 416 item.unbind(); 417 } 418 for (ItemInfo item : tmpAppWidgets) { 419 item.unbind(); 420 } 421 } 422 }; 423 runOnMainThread(r); 424 } 425 426 /** 427 * Adds an item to the DB if it was not created previously, or move it to a new 428 * <container, screen, cellX, cellY> 429 */ 430 static void addOrMoveItemInDatabase(Context context, ItemInfo item, long container, 431 long screenId, int cellX, int cellY) { 432 if (item.container == ItemInfo.NO_ID) { 433 // From all apps 434 addItemToDatabase(context, item, container, screenId, cellX, cellY, false); 435 } else { 436 // From somewhere else 437 moveItemInDatabase(context, item, container, screenId, cellX, cellY); 438 } 439 } 440 441 static void checkItemInfoLocked( 442 final long itemId, final ItemInfo item, StackTraceElement[] stackTrace) { 443 ItemInfo modelItem = sBgItemsIdMap.get(itemId); 444 if (modelItem != null && item != modelItem) { 445 // check all the data is consistent 446 if (modelItem instanceof ShortcutInfo && item instanceof ShortcutInfo) { 447 ShortcutInfo modelShortcut = (ShortcutInfo) modelItem; 448 ShortcutInfo shortcut = (ShortcutInfo) item; 449 if (modelShortcut.title.toString().equals(shortcut.title.toString()) && 450 modelShortcut.intent.filterEquals(shortcut.intent) && 451 modelShortcut.id == shortcut.id && 452 modelShortcut.itemType == shortcut.itemType && 453 modelShortcut.container == shortcut.container && 454 modelShortcut.screenId == shortcut.screenId && 455 modelShortcut.cellX == shortcut.cellX && 456 modelShortcut.cellY == shortcut.cellY && 457 modelShortcut.spanX == shortcut.spanX && 458 modelShortcut.spanY == shortcut.spanY && 459 ((modelShortcut.dropPos == null && shortcut.dropPos == null) || 460 (modelShortcut.dropPos != null && 461 shortcut.dropPos != null && 462 modelShortcut.dropPos[0] == shortcut.dropPos[0] && 463 modelShortcut.dropPos[1] == shortcut.dropPos[1]))) { 464 // For all intents and purposes, this is the same object 465 return; 466 } 467 } 468 469 // the modelItem needs to match up perfectly with item if our model is 470 // to be consistent with the database-- for now, just require 471 // modelItem == item or the equality check above 472 String msg = "item: " + ((item != null) ? item.toString() : "null") + 473 "modelItem: " + 474 ((modelItem != null) ? modelItem.toString() : "null") + 475 "Error: ItemInfo passed to checkItemInfo doesn't match original"; 476 RuntimeException e = new RuntimeException(msg); 477 if (stackTrace != null) { 478 e.setStackTrace(stackTrace); 479 } 480 // TODO: something breaks this in the upgrade path 481 //throw e; 482 } 483 } 484 485 static void checkItemInfo(final ItemInfo item) { 486 final StackTraceElement[] stackTrace = new Throwable().getStackTrace(); 487 final long itemId = item.id; 488 Runnable r = new Runnable() { 489 public void run() { 490 synchronized (sBgLock) { 491 checkItemInfoLocked(itemId, item, stackTrace); 492 } 493 } 494 }; 495 runOnWorkerThread(r); 496 } 497 498 static void updateItemInDatabaseHelper(Context context, final ContentValues values, 499 final ItemInfo item, final String callingFunction) { 500 final long itemId = item.id; 501 final Uri uri = LauncherSettings.Favorites.getContentUri(itemId, false); 502 final ContentResolver cr = context.getContentResolver(); 503 504 final StackTraceElement[] stackTrace = new Throwable().getStackTrace(); 505 Runnable r = new Runnable() { 506 public void run() { 507 cr.update(uri, values, null, null); 508 updateItemArrays(item, itemId, stackTrace); 509 } 510 }; 511 runOnWorkerThread(r); 512 } 513 514 static void updateItemsInDatabaseHelper(Context context, final ArrayList<ContentValues> valuesList, 515 final ArrayList<ItemInfo> items, final String callingFunction) { 516 final ContentResolver cr = context.getContentResolver(); 517 518 final StackTraceElement[] stackTrace = new Throwable().getStackTrace(); 519 Runnable r = new Runnable() { 520 public void run() { 521 ArrayList<ContentProviderOperation> ops = 522 new ArrayList<ContentProviderOperation>(); 523 int count = items.size(); 524 for (int i = 0; i < count; i++) { 525 ItemInfo item = items.get(i); 526 final long itemId = item.id; 527 final Uri uri = LauncherSettings.Favorites.getContentUri(itemId, false); 528 ContentValues values = valuesList.get(i); 529 530 ops.add(ContentProviderOperation.newUpdate(uri).withValues(values).build()); 531 updateItemArrays(item, itemId, stackTrace); 532 533 } 534 try { 535 cr.applyBatch(LauncherProvider.AUTHORITY, ops); 536 } catch (Exception e) { 537 e.printStackTrace(); 538 } 539 } 540 }; 541 runOnWorkerThread(r); 542 } 543 544 static void updateItemArrays(ItemInfo item, long itemId, StackTraceElement[] stackTrace) { 545 // Lock on mBgLock *after* the db operation 546 synchronized (sBgLock) { 547 checkItemInfoLocked(itemId, item, stackTrace); 548 549 if (item.container != LauncherSettings.Favorites.CONTAINER_DESKTOP && 550 item.container != LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 551 // Item is in a folder, make sure this folder exists 552 if (!sBgFolders.containsKey(item.container)) { 553 // An items container is being set to a that of an item which is not in 554 // the list of Folders. 555 String msg = "item: " + item + " container being set to: " + 556 item.container + ", not in the list of folders"; 557 Log.e(TAG, msg); 558 Launcher.dumpDebugLogsToConsole(); 559 } 560 } 561 562 // Items are added/removed from the corresponding FolderInfo elsewhere, such 563 // as in Workspace.onDrop. Here, we just add/remove them from the list of items 564 // that are on the desktop, as appropriate 565 ItemInfo modelItem = sBgItemsIdMap.get(itemId); 566 if (modelItem.container == LauncherSettings.Favorites.CONTAINER_DESKTOP || 567 modelItem.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 568 switch (modelItem.itemType) { 569 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 570 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 571 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 572 if (!sBgWorkspaceItems.contains(modelItem)) { 573 sBgWorkspaceItems.add(modelItem); 574 } 575 break; 576 default: 577 break; 578 } 579 } else { 580 sBgWorkspaceItems.remove(modelItem); 581 } 582 } 583 } 584 585 public void flushWorkerThread() { 586 mFlushingWorkerThread = true; 587 Runnable waiter = new Runnable() { 588 public void run() { 589 synchronized (this) { 590 notifyAll(); 591 mFlushingWorkerThread = false; 592 } 593 } 594 }; 595 596 synchronized(waiter) { 597 runOnWorkerThread(waiter); 598 if (mLoaderTask != null) { 599 synchronized(mLoaderTask) { 600 mLoaderTask.notify(); 601 } 602 } 603 boolean success = false; 604 while (!success) { 605 try { 606 waiter.wait(); 607 success = true; 608 } catch (InterruptedException e) { 609 } 610 } 611 } 612 } 613 614 /** 615 * Move an item in the DB to a new <container, screen, cellX, cellY> 616 */ 617 static void moveItemInDatabase(Context context, final ItemInfo item, final long container, 618 final long screenId, final int cellX, final int cellY) { 619 String transaction = "DbDebug Modify item (" + item.title + ") in db, id: " + item.id + 620 " (" + item.container + ", " + item.screenId + ", " + item.cellX + ", " + item.cellY + 621 ") --> " + "(" + container + ", " + screenId + ", " + cellX + ", " + cellY + ")"; 622 Launcher.sDumpLogs.add(transaction); 623 Log.d(TAG, transaction); 624 item.container = container; 625 item.cellX = cellX; 626 item.cellY = cellY; 627 628 // We store hotseat items in canonical form which is this orientation invariant position 629 // in the hotseat 630 if (context instanceof Launcher && screenId < 0 && 631 container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 632 item.screenId = ((Launcher) context).getHotseat().getOrderInHotseat(cellX, cellY); 633 } else { 634 item.screenId = screenId; 635 } 636 637 final ContentValues values = new ContentValues(); 638 values.put(LauncherSettings.Favorites.CONTAINER, item.container); 639 values.put(LauncherSettings.Favorites.CELLX, item.cellX); 640 values.put(LauncherSettings.Favorites.CELLY, item.cellY); 641 values.put(LauncherSettings.Favorites.SCREEN, item.screenId); 642 643 updateItemInDatabaseHelper(context, values, item, "moveItemInDatabase"); 644 } 645 646 /** 647 * Move items in the DB to a new <container, screen, cellX, cellY>. We assume that the 648 * cellX, cellY have already been updated on the ItemInfos. 649 */ 650 static void moveItemsInDatabase(Context context, final ArrayList<ItemInfo> items, 651 final long container, final int screen) { 652 653 ArrayList<ContentValues> contentValues = new ArrayList<ContentValues>(); 654 int count = items.size(); 655 656 for (int i = 0; i < count; i++) { 657 ItemInfo item = items.get(i); 658 String transaction = "DbDebug Modify item (" + item.title + ") in db, id: " 659 + item.id + " (" + item.container + ", " + item.screenId + ", " + item.cellX 660 + ", " + item.cellY + ") --> " + "(" + container + ", " + screen + ", " 661 + item.cellX + ", " + item.cellY + ")"; 662 Launcher.sDumpLogs.add(transaction); 663 item.container = container; 664 665 // We store hotseat items in canonical form which is this orientation invariant position 666 // in the hotseat 667 if (context instanceof Launcher && screen < 0 && 668 container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 669 item.screenId = ((Launcher) context).getHotseat().getOrderInHotseat(item.cellX, 670 item.cellY); 671 } else { 672 item.screenId = screen; 673 } 674 675 final ContentValues values = new ContentValues(); 676 values.put(LauncherSettings.Favorites.CONTAINER, item.container); 677 values.put(LauncherSettings.Favorites.CELLX, item.cellX); 678 values.put(LauncherSettings.Favorites.CELLY, item.cellY); 679 values.put(LauncherSettings.Favorites.SCREEN, item.screenId); 680 681 contentValues.add(values); 682 } 683 updateItemsInDatabaseHelper(context, contentValues, items, "moveItemInDatabase"); 684 } 685 686 /** 687 * Move and/or resize item in the DB to a new <container, screen, cellX, cellY, spanX, spanY> 688 */ 689 static void modifyItemInDatabase(Context context, final ItemInfo item, final long container, 690 final long screenId, final int cellX, final int cellY, final int spanX, final int spanY) { 691 String transaction = "DbDebug Modify item (" + item.title + ") in db, id: " + item.id + 692 " (" + item.container + ", " + item.screenId + ", " + item.cellX + ", " + item.cellY + 693 ") --> " + "(" + container + ", " + screenId + ", " + cellX + ", " + cellY + ")"; 694 Launcher.sDumpLogs.add(transaction); 695 Log.d(TAG, transaction); 696 item.cellX = cellX; 697 item.cellY = cellY; 698 item.spanX = spanX; 699 item.spanY = spanY; 700 701 // We store hotseat items in canonical form which is this orientation invariant position 702 // in the hotseat 703 if (context instanceof Launcher && screenId < 0 && 704 container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 705 item.screenId = ((Launcher) context).getHotseat().getOrderInHotseat(cellX, cellY); 706 } else { 707 item.screenId = screenId; 708 } 709 710 final ContentValues values = new ContentValues(); 711 values.put(LauncherSettings.Favorites.CONTAINER, item.container); 712 values.put(LauncherSettings.Favorites.CELLX, item.cellX); 713 values.put(LauncherSettings.Favorites.CELLY, item.cellY); 714 values.put(LauncherSettings.Favorites.SPANX, item.spanX); 715 values.put(LauncherSettings.Favorites.SPANY, item.spanY); 716 values.put(LauncherSettings.Favorites.SCREEN, item.screenId); 717 718 updateItemInDatabaseHelper(context, values, item, "modifyItemInDatabase"); 719 } 720 721 /** 722 * Update an item to the database in a specified container. 723 */ 724 static void updateItemInDatabase(Context context, final ItemInfo item) { 725 final ContentValues values = new ContentValues(); 726 item.onAddToDatabase(values); 727 item.updateValuesWithCoordinates(values, item.cellX, item.cellY); 728 updateItemInDatabaseHelper(context, values, item, "updateItemInDatabase"); 729 } 730 731 /** 732 * Returns true if the shortcuts already exists in the database. 733 * we identify a shortcut by its title and intent. 734 */ 735 static boolean shortcutExists(Context context, String title, Intent intent) { 736 final ContentResolver cr = context.getContentResolver(); 737 Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI, 738 new String[] { "title", "intent" }, "title=? and intent=?", 739 new String[] { title, intent.toUri(0) }, null); 740 boolean result = false; 741 try { 742 result = c.moveToFirst(); 743 } finally { 744 c.close(); 745 } 746 return result; 747 } 748 749 /** 750 * Returns an ItemInfo array containing all the items in the LauncherModel. 751 * The ItemInfo.id is not set through this function. 752 */ 753 static ArrayList<ItemInfo> getItemsInLocalCoordinates(Context context) { 754 ArrayList<ItemInfo> items = new ArrayList<ItemInfo>(); 755 final ContentResolver cr = context.getContentResolver(); 756 Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI, new String[] { 757 LauncherSettings.Favorites.ITEM_TYPE, LauncherSettings.Favorites.CONTAINER, 758 LauncherSettings.Favorites.SCREEN, LauncherSettings.Favorites.CELLX, LauncherSettings.Favorites.CELLY, 759 LauncherSettings.Favorites.SPANX, LauncherSettings.Favorites.SPANY }, null, null, null); 760 761 final int itemTypeIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.ITEM_TYPE); 762 final int containerIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CONTAINER); 763 final int screenIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SCREEN); 764 final int cellXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLX); 765 final int cellYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLY); 766 final int spanXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SPANX); 767 final int spanYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SPANY); 768 769 try { 770 while (c.moveToNext()) { 771 ItemInfo item = new ItemInfo(); 772 item.cellX = c.getInt(cellXIndex); 773 item.cellY = c.getInt(cellYIndex); 774 item.spanX = c.getInt(spanXIndex); 775 item.spanY = c.getInt(spanYIndex); 776 item.container = c.getInt(containerIndex); 777 item.itemType = c.getInt(itemTypeIndex); 778 item.screenId = c.getInt(screenIndex); 779 780 items.add(item); 781 } 782 } catch (Exception e) { 783 items.clear(); 784 } finally { 785 c.close(); 786 } 787 788 return items; 789 } 790 791 /** 792 * Find a folder in the db, creating the FolderInfo if necessary, and adding it to folderList. 793 */ 794 FolderInfo getFolderById(Context context, HashMap<Long,FolderInfo> folderList, long id) { 795 final ContentResolver cr = context.getContentResolver(); 796 Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI, null, 797 "_id=? and (itemType=? or itemType=?)", 798 new String[] { String.valueOf(id), 799 String.valueOf(LauncherSettings.Favorites.ITEM_TYPE_FOLDER)}, null); 800 801 try { 802 if (c.moveToFirst()) { 803 final int itemTypeIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.ITEM_TYPE); 804 final int titleIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.TITLE); 805 final int containerIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CONTAINER); 806 final int screenIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SCREEN); 807 final int cellXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLX); 808 final int cellYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLY); 809 810 FolderInfo folderInfo = null; 811 switch (c.getInt(itemTypeIndex)) { 812 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 813 folderInfo = findOrMakeFolder(folderList, id); 814 break; 815 } 816 817 folderInfo.title = c.getString(titleIndex); 818 folderInfo.id = id; 819 folderInfo.container = c.getInt(containerIndex); 820 folderInfo.screenId = c.getInt(screenIndex); 821 folderInfo.cellX = c.getInt(cellXIndex); 822 folderInfo.cellY = c.getInt(cellYIndex); 823 824 return folderInfo; 825 } 826 } finally { 827 c.close(); 828 } 829 830 return null; 831 } 832 833 /** 834 * Add an item to the database in a specified container. Sets the container, screen, cellX and 835 * cellY fields of the item. Also assigns an ID to the item. 836 */ 837 static void addItemToDatabase(Context context, final ItemInfo item, final long container, 838 final long screenId, final int cellX, final int cellY, final boolean notify) { 839 item.container = container; 840 item.cellX = cellX; 841 item.cellY = cellY; 842 // We store hotseat items in canonical form which is this orientation invariant position 843 // in the hotseat 844 if (context instanceof Launcher && screenId < 0 && 845 container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 846 item.screenId = ((Launcher) context).getHotseat().getOrderInHotseat(cellX, cellY); 847 } else { 848 item.screenId = screenId; 849 } 850 851 final ContentValues values = new ContentValues(); 852 final ContentResolver cr = context.getContentResolver(); 853 item.onAddToDatabase(values); 854 855 LauncherAppState app = LauncherAppState.getInstance(); 856 item.id = app.getLauncherProvider().generateNewItemId(); 857 values.put(LauncherSettings.Favorites._ID, item.id); 858 item.updateValuesWithCoordinates(values, item.cellX, item.cellY); 859 860 Runnable r = new Runnable() { 861 public void run() { 862 String transaction = "DbDebug Add item (" + item.title + ") to db, id: " 863 + item.id + " (" + container + ", " + screenId + ", " + cellX + ", " 864 + cellY + ")"; 865 Launcher.sDumpLogs.add(transaction); 866 Log.d(TAG, transaction); 867 868 cr.insert(notify ? LauncherSettings.Favorites.CONTENT_URI : 869 LauncherSettings.Favorites.CONTENT_URI_NO_NOTIFICATION, values); 870 871 // Lock on mBgLock *after* the db operation 872 synchronized (sBgLock) { 873 checkItemInfoLocked(item.id, item, null); 874 sBgItemsIdMap.put(item.id, item); 875 switch (item.itemType) { 876 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 877 sBgFolders.put(item.id, (FolderInfo) item); 878 // Fall through 879 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 880 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 881 if (item.container == LauncherSettings.Favorites.CONTAINER_DESKTOP || 882 item.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 883 sBgWorkspaceItems.add(item); 884 } else { 885 if (!sBgFolders.containsKey(item.container)) { 886 // Adding an item to a folder that doesn't exist. 887 String msg = "adding item: " + item + " to a folder that " + 888 " doesn't exist"; 889 Log.e(TAG, msg); 890 Launcher.dumpDebugLogsToConsole(); 891 } 892 } 893 break; 894 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 895 sBgAppWidgets.add((LauncherAppWidgetInfo) item); 896 break; 897 } 898 } 899 } 900 }; 901 runOnWorkerThread(r); 902 } 903 904 /** 905 * Creates a new unique child id, for a given cell span across all layouts. 906 */ 907 static int getCellLayoutChildId( 908 long container, long screen, int localCellX, int localCellY, int spanX, int spanY) { 909 return (((int) container & 0xFF) << 24) 910 | ((int) screen & 0xFF) << 16 | (localCellX & 0xFF) << 8 | (localCellY & 0xFF); 911 } 912 913 static int getCellCountX() { 914 return mCellCountX; 915 } 916 917 static int getCellCountY() { 918 return mCellCountY; 919 } 920 921 /** 922 * Updates the model orientation helper to take into account the current layout dimensions 923 * when performing local/canonical coordinate transformations. 924 */ 925 static void updateWorkspaceLayoutCells(int shortAxisCellCount, int longAxisCellCount) { 926 mCellCountX = shortAxisCellCount; 927 mCellCountY = longAxisCellCount; 928 } 929 930 /** 931 * Removes the specified item from the database 932 * @param context 933 * @param item 934 */ 935 static void deleteItemFromDatabase(Context context, final ItemInfo item) { 936 final ContentResolver cr = context.getContentResolver(); 937 final Uri uriToDelete = LauncherSettings.Favorites.getContentUri(item.id, false); 938 939 Runnable r = new Runnable() { 940 public void run() { 941 String transaction = "DbDebug Delete item (" + item.title + ") from db, id: " 942 + item.id + " (" + item.container + ", " + item.screenId + ", " + item.cellX + 943 ", " + item.cellY + ")"; 944 Launcher.sDumpLogs.add(transaction); 945 Log.d(TAG, transaction); 946 947 cr.delete(uriToDelete, null, null); 948 949 // Lock on mBgLock *after* the db operation 950 synchronized (sBgLock) { 951 switch (item.itemType) { 952 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 953 sBgFolders.remove(item.id); 954 for (ItemInfo info: sBgItemsIdMap.values()) { 955 if (info.container == item.id) { 956 // We are deleting a folder which still contains items that 957 // think they are contained by that folder. 958 String msg = "deleting a folder (" + item + ") which still " + 959 "contains items (" + info + ")"; 960 Log.e(TAG, msg); 961 Launcher.dumpDebugLogsToConsole(); 962 } 963 } 964 sBgWorkspaceItems.remove(item); 965 break; 966 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 967 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 968 sBgWorkspaceItems.remove(item); 969 break; 970 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 971 sBgAppWidgets.remove((LauncherAppWidgetInfo) item); 972 break; 973 } 974 sBgItemsIdMap.remove(item.id); 975 sBgDbIconCache.remove(item); 976 } 977 } 978 }; 979 runOnWorkerThread(r); 980 } 981 982 /** 983 * Update the order of the workspace screens in the database. The array list contains 984 * a list of screen ids in the order that they should appear. 985 */ 986 void updateWorkspaceScreenOrder(Context context, final ArrayList<Long> screens) { 987 final ArrayList<Long> screensCopy = new ArrayList<Long>(screens); 988 final ContentResolver cr = context.getContentResolver(); 989 final Uri uri = LauncherSettings.WorkspaceScreens.CONTENT_URI; 990 991 // Remove any negative screen ids -- these aren't persisted 992 Iterator<Long> iter = screensCopy.iterator(); 993 while (iter.hasNext()) { 994 long id = iter.next(); 995 if (id < 0) { 996 iter.remove(); 997 } 998 } 999 1000 Runnable r = new Runnable() { 1001 @Override 1002 public void run() { 1003 // Clear the table 1004 cr.delete(uri, null, null); 1005 int count = screens.size(); 1006 ContentValues[] values = new ContentValues[count]; 1007 for (int i = 0; i < count; i++) { 1008 ContentValues v = new ContentValues(); 1009 long screenId = screens.get(i); 1010 v.put(LauncherSettings.WorkspaceScreens._ID, screenId); 1011 v.put(LauncherSettings.WorkspaceScreens.SCREEN_RANK, i); 1012 Log.d(TAG, "10249126 - updateWorkspaceScreenOrder(" + screenId + ", " + i + ")"); 1013 values[i] = v; 1014 } 1015 cr.bulkInsert(uri, values); 1016 sBgWorkspaceScreens.clear(); 1017 sBgWorkspaceScreens.addAll(screensCopy); 1018 } 1019 }; 1020 runOnWorkerThread(r); 1021 } 1022 1023 /** 1024 * Remove the contents of the specified folder from the database 1025 */ 1026 static void deleteFolderContentsFromDatabase(Context context, final FolderInfo info) { 1027 final ContentResolver cr = context.getContentResolver(); 1028 1029 Runnable r = new Runnable() { 1030 public void run() { 1031 cr.delete(LauncherSettings.Favorites.getContentUri(info.id, false), null, null); 1032 // Lock on mBgLock *after* the db operation 1033 synchronized (sBgLock) { 1034 sBgItemsIdMap.remove(info.id); 1035 sBgFolders.remove(info.id); 1036 sBgDbIconCache.remove(info); 1037 sBgWorkspaceItems.remove(info); 1038 } 1039 1040 cr.delete(LauncherSettings.Favorites.CONTENT_URI_NO_NOTIFICATION, 1041 LauncherSettings.Favorites.CONTAINER + "=" + info.id, null); 1042 // Lock on mBgLock *after* the db operation 1043 synchronized (sBgLock) { 1044 for (ItemInfo childInfo : info.contents) { 1045 sBgItemsIdMap.remove(childInfo.id); 1046 sBgDbIconCache.remove(childInfo); 1047 } 1048 } 1049 } 1050 }; 1051 runOnWorkerThread(r); 1052 } 1053 1054 /** 1055 * Set this as the current Launcher activity object for the loader. 1056 */ 1057 public void initialize(Callbacks callbacks) { 1058 synchronized (mLock) { 1059 mCallbacks = new WeakReference<Callbacks>(callbacks); 1060 } 1061 } 1062 1063 /** 1064 * Call from the handler for ACTION_PACKAGE_ADDED, ACTION_PACKAGE_REMOVED and 1065 * ACTION_PACKAGE_CHANGED. 1066 */ 1067 @Override 1068 public void onReceive(Context context, Intent intent) { 1069 if (DEBUG_LOADERS) Log.d(TAG, "onReceive intent=" + intent); 1070 1071 final String action = intent.getAction(); 1072 1073 if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 1074 || Intent.ACTION_PACKAGE_REMOVED.equals(action) 1075 || Intent.ACTION_PACKAGE_ADDED.equals(action)) { 1076 final String packageName = intent.getData().getSchemeSpecificPart(); 1077 final boolean replacing = intent.getBooleanExtra(Intent.EXTRA_REPLACING, false); 1078 1079 int op = PackageUpdatedTask.OP_NONE; 1080 1081 if (packageName == null || packageName.length() == 0) { 1082 // they sent us a bad intent 1083 return; 1084 } 1085 1086 if (Intent.ACTION_PACKAGE_CHANGED.equals(action)) { 1087 op = PackageUpdatedTask.OP_UPDATE; 1088 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action)) { 1089 if (!replacing) { 1090 op = PackageUpdatedTask.OP_REMOVE; 1091 } 1092 // else, we are replacing the package, so a PACKAGE_ADDED will be sent 1093 // later, we will update the package at this time 1094 } else if (Intent.ACTION_PACKAGE_ADDED.equals(action)) { 1095 if (!replacing) { 1096 op = PackageUpdatedTask.OP_ADD; 1097 } else { 1098 op = PackageUpdatedTask.OP_UPDATE; 1099 } 1100 } 1101 1102 if (op != PackageUpdatedTask.OP_NONE) { 1103 enqueuePackageUpdated(new PackageUpdatedTask(op, new String[] { packageName })); 1104 } 1105 1106 } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE.equals(action)) { 1107 // First, schedule to add these apps back in. 1108 String[] packages = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST); 1109 enqueuePackageUpdated(new PackageUpdatedTask(PackageUpdatedTask.OP_ADD, packages)); 1110 // Then, rebind everything. 1111 startLoaderFromBackground(); 1112 } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 1113 String[] packages = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST); 1114 enqueuePackageUpdated(new PackageUpdatedTask( 1115 PackageUpdatedTask.OP_UNAVAILABLE, packages)); 1116 } else if (Intent.ACTION_LOCALE_CHANGED.equals(action)) { 1117 // If we have changed locale we need to clear out the labels in all apps/workspace. 1118 forceReload(); 1119 } else if (Intent.ACTION_CONFIGURATION_CHANGED.equals(action)) { 1120 // Check if configuration change was an mcc/mnc change which would affect app resources 1121 // and we would need to clear out the labels in all apps/workspace. Same handling as 1122 // above for ACTION_LOCALE_CHANGED 1123 Configuration currentConfig = context.getResources().getConfiguration(); 1124 if (mPreviousConfigMcc != currentConfig.mcc) { 1125 Log.d(TAG, "Reload apps on config change. curr_mcc:" 1126 + currentConfig.mcc + " prevmcc:" + mPreviousConfigMcc); 1127 forceReload(); 1128 } 1129 // Update previousConfig 1130 mPreviousConfigMcc = currentConfig.mcc; 1131 } else if (SearchManager.INTENT_GLOBAL_SEARCH_ACTIVITY_CHANGED.equals(action) || 1132 SearchManager.INTENT_ACTION_SEARCHABLES_CHANGED.equals(action)) { 1133 if (mCallbacks != null) { 1134 Callbacks callbacks = mCallbacks.get(); 1135 if (callbacks != null) { 1136 callbacks.bindSearchablesChanged(); 1137 } 1138 } 1139 } 1140 } 1141 1142 private void forceReload() { 1143 resetLoadedState(true, true); 1144 1145 // Do this here because if the launcher activity is running it will be restarted. 1146 // If it's not running startLoaderFromBackground will merely tell it that it needs 1147 // to reload. 1148 startLoaderFromBackground(); 1149 } 1150 1151 public void resetLoadedState(boolean resetAllAppsLoaded, boolean resetWorkspaceLoaded) { 1152 synchronized (mLock) { 1153 // Stop any existing loaders first, so they don't set mAllAppsLoaded or 1154 // mWorkspaceLoaded to true later 1155 stopLoaderLocked(); 1156 if (resetAllAppsLoaded) mAllAppsLoaded = false; 1157 if (resetWorkspaceLoaded) mWorkspaceLoaded = false; 1158 } 1159 } 1160 1161 /** 1162 * When the launcher is in the background, it's possible for it to miss paired 1163 * configuration changes. So whenever we trigger the loader from the background 1164 * tell the launcher that it needs to re-run the loader when it comes back instead 1165 * of doing it now. 1166 */ 1167 public void startLoaderFromBackground() { 1168 boolean runLoader = false; 1169 if (mCallbacks != null) { 1170 Callbacks callbacks = mCallbacks.get(); 1171 if (callbacks != null) { 1172 // Only actually run the loader if they're not paused. 1173 if (!callbacks.setLoadOnResume()) { 1174 runLoader = true; 1175 } 1176 } 1177 } 1178 if (runLoader) { 1179 startLoader(false, -1); 1180 } 1181 } 1182 1183 // If there is already a loader task running, tell it to stop. 1184 // returns true if isLaunching() was true on the old task 1185 private boolean stopLoaderLocked() { 1186 boolean isLaunching = false; 1187 LoaderTask oldTask = mLoaderTask; 1188 if (oldTask != null) { 1189 if (oldTask.isLaunching()) { 1190 isLaunching = true; 1191 } 1192 oldTask.stopLocked(); 1193 } 1194 return isLaunching; 1195 } 1196 1197 public void startLoader(boolean isLaunching, int synchronousBindPage) { 1198 synchronized (mLock) { 1199 if (DEBUG_LOADERS) { 1200 Log.d(TAG, "startLoader isLaunching=" + isLaunching); 1201 } 1202 1203 // Clear any deferred bind-runnables from the synchronized load process 1204 // We must do this before any loading/binding is scheduled below. 1205 mDeferredBindRunnables.clear(); 1206 1207 // Don't bother to start the thread if we know it's not going to do anything 1208 if (mCallbacks != null && mCallbacks.get() != null) { 1209 // If there is already one running, tell it to stop. 1210 // also, don't downgrade isLaunching if we're already running 1211 isLaunching = isLaunching || stopLoaderLocked(); 1212 mLoaderTask = new LoaderTask(mApp.getContext(), isLaunching); 1213 if (synchronousBindPage > -1 && mAllAppsLoaded && mWorkspaceLoaded) { 1214 mLoaderTask.runBindSynchronousPage(synchronousBindPage); 1215 } else { 1216 sWorkerThread.setPriority(Thread.NORM_PRIORITY); 1217 sWorker.post(mLoaderTask); 1218 } 1219 } 1220 } 1221 } 1222 1223 void bindRemainingSynchronousPages() { 1224 // Post the remaining side pages to be loaded 1225 if (!mDeferredBindRunnables.isEmpty()) { 1226 for (final Runnable r : mDeferredBindRunnables) { 1227 mHandler.post(r, MAIN_THREAD_BINDING_RUNNABLE); 1228 } 1229 mDeferredBindRunnables.clear(); 1230 } 1231 } 1232 1233 public void stopLoader() { 1234 synchronized (mLock) { 1235 if (mLoaderTask != null) { 1236 mLoaderTask.stopLocked(); 1237 } 1238 } 1239 } 1240 1241 public boolean isAllAppsLoaded() { 1242 return mAllAppsLoaded; 1243 } 1244 1245 boolean isLoadingWorkspace() { 1246 synchronized (mLock) { 1247 if (mLoaderTask != null) { 1248 return mLoaderTask.isLoadingWorkspace(); 1249 } 1250 } 1251 return false; 1252 } 1253 1254 /** 1255 * Runnable for the thread that loads the contents of the launcher: 1256 * - workspace icons 1257 * - widgets 1258 * - all apps icons 1259 */ 1260 private class LoaderTask implements Runnable { 1261 private Context mContext; 1262 private boolean mIsLaunching; 1263 private boolean mIsLoadingAndBindingWorkspace; 1264 private boolean mStopped; 1265 private boolean mLoadAndBindStepFinished; 1266 1267 private HashMap<Object, CharSequence> mLabelCache; 1268 1269 LoaderTask(Context context, boolean isLaunching) { 1270 mContext = context; 1271 mIsLaunching = isLaunching; 1272 mLabelCache = new HashMap<Object, CharSequence>(); 1273 } 1274 1275 boolean isLaunching() { 1276 return mIsLaunching; 1277 } 1278 1279 boolean isLoadingWorkspace() { 1280 return mIsLoadingAndBindingWorkspace; 1281 } 1282 1283 /** Returns whether this is an upgrade path */ 1284 private boolean loadAndBindWorkspace() { 1285 mIsLoadingAndBindingWorkspace = true; 1286 1287 // Load the workspace 1288 if (DEBUG_LOADERS) { 1289 Log.d(TAG, "loadAndBindWorkspace mWorkspaceLoaded=" + mWorkspaceLoaded); 1290 } 1291 1292 boolean isUpgradePath = false; 1293 if (!mWorkspaceLoaded) { 1294 isUpgradePath = loadWorkspace(); 1295 synchronized (LoaderTask.this) { 1296 if (mStopped) { 1297 return isUpgradePath; 1298 } 1299 mWorkspaceLoaded = true; 1300 } 1301 } 1302 1303 // Bind the workspace 1304 bindWorkspace(-1, isUpgradePath); 1305 return isUpgradePath; 1306 } 1307 1308 private void waitForIdle() { 1309 // Wait until the either we're stopped or the other threads are done. 1310 // This way we don't start loading all apps until the workspace has settled 1311 // down. 1312 synchronized (LoaderTask.this) { 1313 final long workspaceWaitTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 1314 1315 mHandler.postIdle(new Runnable() { 1316 public void run() { 1317 synchronized (LoaderTask.this) { 1318 mLoadAndBindStepFinished = true; 1319 if (DEBUG_LOADERS) { 1320 Log.d(TAG, "done with previous binding step"); 1321 } 1322 LoaderTask.this.notify(); 1323 } 1324 } 1325 }); 1326 1327 while (!mStopped && !mLoadAndBindStepFinished && !mFlushingWorkerThread) { 1328 try { 1329 // Just in case mFlushingWorkerThread changes but we aren't woken up, 1330 // wait no longer than 1sec at a time 1331 this.wait(1000); 1332 } catch (InterruptedException ex) { 1333 // Ignore 1334 } 1335 } 1336 if (DEBUG_LOADERS) { 1337 Log.d(TAG, "waited " 1338 + (SystemClock.uptimeMillis()-workspaceWaitTime) 1339 + "ms for previous step to finish binding"); 1340 } 1341 } 1342 } 1343 1344 void runBindSynchronousPage(int synchronousBindPage) { 1345 if (synchronousBindPage < 0) { 1346 // Ensure that we have a valid page index to load synchronously 1347 throw new RuntimeException("Should not call runBindSynchronousPage() without " + 1348 "valid page index"); 1349 } 1350 if (!mAllAppsLoaded || !mWorkspaceLoaded) { 1351 // Ensure that we don't try and bind a specified page when the pages have not been 1352 // loaded already (we should load everything asynchronously in that case) 1353 throw new RuntimeException("Expecting AllApps and Workspace to be loaded"); 1354 } 1355 synchronized (mLock) { 1356 if (mIsLoaderTaskRunning) { 1357 // Ensure that we are never running the background loading at this point since 1358 // we also touch the background collections 1359 throw new RuntimeException("Error! Background loading is already running"); 1360 } 1361 } 1362 1363 // XXX: Throw an exception if we are already loading (since we touch the worker thread 1364 // data structures, we can't allow any other thread to touch that data, but because 1365 // this call is synchronous, we can get away with not locking). 1366 1367 // The LauncherModel is static in the LauncherAppState and mHandler may have queued 1368 // operations from the previous activity. We need to ensure that all queued operations 1369 // are executed before any synchronous binding work is done. 1370 mHandler.flush(); 1371 1372 // Divide the set of loaded items into those that we are binding synchronously, and 1373 // everything else that is to be bound normally (asynchronously). 1374 bindWorkspace(synchronousBindPage, false); 1375 // XXX: For now, continue posting the binding of AllApps as there are other issues that 1376 // arise from that. 1377 onlyBindAllApps(); 1378 } 1379 1380 public void run() { 1381 boolean isUpgrade = false; 1382 1383 synchronized (mLock) { 1384 mIsLoaderTaskRunning = true; 1385 } 1386 // Optimize for end-user experience: if the Launcher is up and // running with the 1387 // All Apps interface in the foreground, load All Apps first. Otherwise, load the 1388 // workspace first (default). 1389 final Callbacks cbk = mCallbacks.get(); 1390 keep_running: { 1391 // Elevate priority when Home launches for the first time to avoid 1392 // starving at boot time. Staring at a blank home is not cool. 1393 synchronized (mLock) { 1394 if (DEBUG_LOADERS) Log.d(TAG, "Setting thread priority to " + 1395 (mIsLaunching ? "DEFAULT" : "BACKGROUND")); 1396 android.os.Process.setThreadPriority(mIsLaunching 1397 ? Process.THREAD_PRIORITY_DEFAULT : Process.THREAD_PRIORITY_BACKGROUND); 1398 } 1399 if (DEBUG_LOADERS) Log.d(TAG, "step 1: loading workspace"); 1400 isUpgrade = loadAndBindWorkspace(); 1401 1402 if (mStopped) { 1403 break keep_running; 1404 } 1405 1406 // Whew! Hard work done. Slow us down, and wait until the UI thread has 1407 // settled down. 1408 synchronized (mLock) { 1409 if (mIsLaunching) { 1410 if (DEBUG_LOADERS) Log.d(TAG, "Setting thread priority to BACKGROUND"); 1411 android.os.Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 1412 } 1413 } 1414 waitForIdle(); 1415 1416 // second step 1417 if (DEBUG_LOADERS) Log.d(TAG, "step 2: loading all apps"); 1418 loadAndBindAllApps(); 1419 1420 // Restore the default thread priority after we are done loading items 1421 synchronized (mLock) { 1422 android.os.Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT); 1423 } 1424 } 1425 1426 // Update the saved icons if necessary 1427 if (DEBUG_LOADERS) Log.d(TAG, "Comparing loaded icons to database icons"); 1428 synchronized (sBgLock) { 1429 for (Object key : sBgDbIconCache.keySet()) { 1430 updateSavedIcon(mContext, (ShortcutInfo) key, sBgDbIconCache.get(key)); 1431 } 1432 sBgDbIconCache.clear(); 1433 } 1434 1435 // Ensure that all the applications that are in the system are represented on the home 1436 // screen. 1437 if (!isUpgrade) { 1438 verifyApplications(); 1439 } 1440 1441 // Clear out this reference, otherwise we end up holding it until all of the 1442 // callback runnables are done. 1443 mContext = null; 1444 1445 synchronized (mLock) { 1446 // If we are still the last one to be scheduled, remove ourselves. 1447 if (mLoaderTask == this) { 1448 mLoaderTask = null; 1449 } 1450 mIsLoaderTaskRunning = false; 1451 } 1452 } 1453 1454 public void stopLocked() { 1455 synchronized (LoaderTask.this) { 1456 mStopped = true; 1457 this.notify(); 1458 } 1459 } 1460 1461 /** 1462 * Gets the callbacks object. If we've been stopped, or if the launcher object 1463 * has somehow been garbage collected, return null instead. Pass in the Callbacks 1464 * object that was around when the deferred message was scheduled, and if there's 1465 * a new Callbacks object around then also return null. This will save us from 1466 * calling onto it with data that will be ignored. 1467 */ 1468 Callbacks tryGetCallbacks(Callbacks oldCallbacks) { 1469 synchronized (mLock) { 1470 if (mStopped) { 1471 return null; 1472 } 1473 1474 if (mCallbacks == null) { 1475 return null; 1476 } 1477 1478 final Callbacks callbacks = mCallbacks.get(); 1479 if (callbacks != oldCallbacks) { 1480 return null; 1481 } 1482 if (callbacks == null) { 1483 Log.w(TAG, "no mCallbacks"); 1484 return null; 1485 } 1486 1487 return callbacks; 1488 } 1489 } 1490 1491 private void verifyApplications() { 1492 final Context context = mApp.getContext(); 1493 1494 // Cross reference all the applications in our apps list with items in the workspace 1495 ArrayList<ItemInfo> tmpInfos; 1496 ArrayList<ItemInfo> added = new ArrayList<ItemInfo>(); 1497 synchronized (sBgLock) { 1498 for (ApplicationInfo app : mBgAllAppsList.data) { 1499 tmpInfos = getItemInfoForComponentName(app.componentName); 1500 if (tmpInfos.isEmpty()) { 1501 // We are missing an application icon, so add this to the workspace 1502 added.add(app); 1503 // This is a rare event, so lets log it 1504 Log.e(TAG, "Missing Application on load: " + app); 1505 } 1506 } 1507 } 1508 if (!added.isEmpty()) { 1509 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 1510 addAndBindAddedApps(context, added, cb); 1511 } 1512 } 1513 1514 // check & update map of what's occupied; used to discard overlapping/invalid items 1515 private boolean checkItemPlacement(HashMap<Long, ItemInfo[][]> occupied, ItemInfo item) { 1516 long containerIndex = item.screenId; 1517 if (item.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 1518 if (occupied.containsKey(LauncherSettings.Favorites.CONTAINER_HOTSEAT)) { 1519 if (occupied.get(LauncherSettings.Favorites.CONTAINER_HOTSEAT) 1520 [(int) item.screenId][0] != null) { 1521 Log.e(TAG, "Error loading shortcut into hotseat " + item 1522 + " into position (" + item.screenId + ":" + item.cellX + "," 1523 + item.cellY + ") occupied by " 1524 + occupied.get(LauncherSettings.Favorites.CONTAINER_HOTSEAT) 1525 [(int) item.screenId][0]); 1526 return false; 1527 } 1528 } else { 1529 ItemInfo[][] items = new ItemInfo[mCellCountX + 1][mCellCountY + 1]; 1530 items[(int) item.screenId][0] = item; 1531 occupied.put((long) LauncherSettings.Favorites.CONTAINER_HOTSEAT, items); 1532 return true; 1533 } 1534 } else if (item.container != LauncherSettings.Favorites.CONTAINER_DESKTOP) { 1535 // Skip further checking if it is not the hotseat or workspace container 1536 return true; 1537 } 1538 1539 if (!occupied.containsKey(item.screenId)) { 1540 ItemInfo[][] items = new ItemInfo[mCellCountX + 1][mCellCountY + 1]; 1541 occupied.put(item.screenId, items); 1542 } 1543 1544 ItemInfo[][] screens = occupied.get(item.screenId); 1545 // Check if any workspace icons overlap with each other 1546 for (int x = item.cellX; x < (item.cellX+item.spanX); x++) { 1547 for (int y = item.cellY; y < (item.cellY+item.spanY); y++) { 1548 if (screens[x][y] != null) { 1549 Log.e(TAG, "Error loading shortcut " + item 1550 + " into cell (" + containerIndex + "-" + item.screenId + ":" 1551 + x + "," + y 1552 + ") occupied by " 1553 + screens[x][y]); 1554 return false; 1555 } 1556 } 1557 } 1558 for (int x = item.cellX; x < (item.cellX+item.spanX); x++) { 1559 for (int y = item.cellY; y < (item.cellY+item.spanY); y++) { 1560 screens[x][y] = item; 1561 } 1562 } 1563 1564 return true; 1565 } 1566 1567 /** Returns whether this is an upgradge path */ 1568 private boolean loadWorkspace() { 1569 final long t = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 1570 1571 final Context context = mContext; 1572 final ContentResolver contentResolver = context.getContentResolver(); 1573 final PackageManager manager = context.getPackageManager(); 1574 final AppWidgetManager widgets = AppWidgetManager.getInstance(context); 1575 final boolean isSafeMode = manager.isSafeMode(); 1576 1577 // Make sure the default workspace is loaded, if needed 1578 mApp.getLauncherProvider().loadDefaultFavoritesIfNecessary(0); 1579 1580 // Check if we need to do any upgrade-path logic 1581 boolean loadedOldDb = mApp.getLauncherProvider().justLoadedOldDb(); 1582 1583 synchronized (sBgLock) { 1584 sBgWorkspaceItems.clear(); 1585 sBgAppWidgets.clear(); 1586 sBgFolders.clear(); 1587 sBgItemsIdMap.clear(); 1588 sBgDbIconCache.clear(); 1589 sBgWorkspaceScreens.clear(); 1590 Log.d(TAG, "10249126 - loadWorkspace()"); 1591 1592 final ArrayList<Long> itemsToRemove = new ArrayList<Long>(); 1593 final Uri contentUri = LauncherSettings.Favorites.CONTENT_URI; 1594 final Cursor c = contentResolver.query(contentUri, null, null, null, null); 1595 1596 // +1 for the hotseat (it can be larger than the workspace) 1597 // Load workspace in reverse order to ensure that latest items are loaded first (and 1598 // before any earlier duplicates) 1599 final HashMap<Long, ItemInfo[][]> occupied = new HashMap<Long, ItemInfo[][]>(); 1600 1601 try { 1602 final int idIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites._ID); 1603 final int intentIndex = c.getColumnIndexOrThrow 1604 (LauncherSettings.Favorites.INTENT); 1605 final int titleIndex = c.getColumnIndexOrThrow 1606 (LauncherSettings.Favorites.TITLE); 1607 final int iconTypeIndex = c.getColumnIndexOrThrow( 1608 LauncherSettings.Favorites.ICON_TYPE); 1609 final int iconIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.ICON); 1610 final int iconPackageIndex = c.getColumnIndexOrThrow( 1611 LauncherSettings.Favorites.ICON_PACKAGE); 1612 final int iconResourceIndex = c.getColumnIndexOrThrow( 1613 LauncherSettings.Favorites.ICON_RESOURCE); 1614 final int containerIndex = c.getColumnIndexOrThrow( 1615 LauncherSettings.Favorites.CONTAINER); 1616 final int itemTypeIndex = c.getColumnIndexOrThrow( 1617 LauncherSettings.Favorites.ITEM_TYPE); 1618 final int appWidgetIdIndex = c.getColumnIndexOrThrow( 1619 LauncherSettings.Favorites.APPWIDGET_ID); 1620 final int screenIndex = c.getColumnIndexOrThrow( 1621 LauncherSettings.Favorites.SCREEN); 1622 final int cellXIndex = c.getColumnIndexOrThrow 1623 (LauncherSettings.Favorites.CELLX); 1624 final int cellYIndex = c.getColumnIndexOrThrow 1625 (LauncherSettings.Favorites.CELLY); 1626 final int spanXIndex = c.getColumnIndexOrThrow 1627 (LauncherSettings.Favorites.SPANX); 1628 final int spanYIndex = c.getColumnIndexOrThrow( 1629 LauncherSettings.Favorites.SPANY); 1630 //final int uriIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.URI); 1631 //final int displayModeIndex = c.getColumnIndexOrThrow( 1632 // LauncherSettings.Favorites.DISPLAY_MODE); 1633 1634 ShortcutInfo info; 1635 String intentDescription; 1636 LauncherAppWidgetInfo appWidgetInfo; 1637 int container; 1638 long id; 1639 Intent intent; 1640 1641 while (!mStopped && c.moveToNext()) { 1642 try { 1643 int itemType = c.getInt(itemTypeIndex); 1644 1645 switch (itemType) { 1646 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 1647 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 1648 id = c.getLong(idIndex); 1649 intentDescription = c.getString(intentIndex); 1650 try { 1651 intent = Intent.parseUri(intentDescription, 0); 1652 ComponentName cn = intent.getComponent(); 1653 if (!isValidPackageComponent(manager, cn)) { 1654 if (!mAppsCanBeOnRemoveableStorage) { 1655 // Log the invalid package, and remove it from the db 1656 Uri uri = LauncherSettings.Favorites.getContentUri(id, 1657 false); 1658 contentResolver.delete(uri, null, null); 1659 Log.e(TAG, "Invalid package removed: " + cn); 1660 } else { 1661 // If apps can be on external storage, then we just 1662 // leave them for the user to remove (maybe add 1663 // visual treatment to it) 1664 Log.e(TAG, "Invalid package found: " + cn); 1665 } 1666 continue; 1667 } 1668 } catch (URISyntaxException e) { 1669 continue; 1670 } 1671 1672 if (itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION) { 1673 info = getShortcutInfo(manager, intent, context, c, iconIndex, 1674 titleIndex, mLabelCache); 1675 } else { 1676 info = getShortcutInfo(c, context, iconTypeIndex, 1677 iconPackageIndex, iconResourceIndex, iconIndex, 1678 titleIndex); 1679 1680 // App shortcuts that used to be automatically added to Launcher 1681 // didn't always have the correct intent flags set, so do that 1682 // here 1683 if (intent.getAction() != null && 1684 intent.getCategories() != null && 1685 intent.getAction().equals(Intent.ACTION_MAIN) && 1686 intent.getCategories().contains(Intent.CATEGORY_LAUNCHER)) { 1687 intent.addFlags( 1688 Intent.FLAG_ACTIVITY_NEW_TASK | 1689 Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED); 1690 } 1691 } 1692 1693 if (info != null) { 1694 info.id = id; 1695 info.intent = intent; 1696 container = c.getInt(containerIndex); 1697 info.container = container; 1698 info.screenId = c.getInt(screenIndex); 1699 info.cellX = c.getInt(cellXIndex); 1700 info.cellY = c.getInt(cellYIndex); 1701 // check & update map of what's occupied 1702 if (!checkItemPlacement(occupied, info)) { 1703 break; 1704 } 1705 1706 switch (container) { 1707 case LauncherSettings.Favorites.CONTAINER_DESKTOP: 1708 case LauncherSettings.Favorites.CONTAINER_HOTSEAT: 1709 sBgWorkspaceItems.add(info); 1710 break; 1711 default: 1712 // Item is in a user folder 1713 FolderInfo folderInfo = 1714 findOrMakeFolder(sBgFolders, container); 1715 folderInfo.add(info); 1716 break; 1717 } 1718 sBgItemsIdMap.put(info.id, info); 1719 1720 // now that we've loaded everthing re-save it with the 1721 // icon in case it disappears somehow. 1722 queueIconToBeChecked(sBgDbIconCache, info, c, iconIndex); 1723 } else { 1724 throw new RuntimeException("Unexpected null ShortcutInfo"); 1725 } 1726 break; 1727 1728 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 1729 id = c.getLong(idIndex); 1730 FolderInfo folderInfo = findOrMakeFolder(sBgFolders, id); 1731 1732 folderInfo.title = c.getString(titleIndex); 1733 folderInfo.id = id; 1734 container = c.getInt(containerIndex); 1735 folderInfo.container = container; 1736 folderInfo.screenId = c.getInt(screenIndex); 1737 folderInfo.cellX = c.getInt(cellXIndex); 1738 folderInfo.cellY = c.getInt(cellYIndex); 1739 1740 // check & update map of what's occupied 1741 if (!checkItemPlacement(occupied, folderInfo)) { 1742 break; 1743 } 1744 switch (container) { 1745 case LauncherSettings.Favorites.CONTAINER_DESKTOP: 1746 case LauncherSettings.Favorites.CONTAINER_HOTSEAT: 1747 sBgWorkspaceItems.add(folderInfo); 1748 break; 1749 } 1750 1751 sBgItemsIdMap.put(folderInfo.id, folderInfo); 1752 sBgFolders.put(folderInfo.id, folderInfo); 1753 break; 1754 1755 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 1756 // Read all Launcher-specific widget details 1757 int appWidgetId = c.getInt(appWidgetIdIndex); 1758 id = c.getLong(idIndex); 1759 1760 final AppWidgetProviderInfo provider = 1761 widgets.getAppWidgetInfo(appWidgetId); 1762 1763 if (!isSafeMode && (provider == null || provider.provider == null || 1764 provider.provider.getPackageName() == null)) { 1765 String log = "Deleting widget that isn't installed anymore: id=" 1766 + id + " appWidgetId=" + appWidgetId; 1767 Log.e(TAG, log); 1768 Launcher.sDumpLogs.add(log); 1769 itemsToRemove.add(id); 1770 } else { 1771 appWidgetInfo = new LauncherAppWidgetInfo(appWidgetId, 1772 provider.provider); 1773 appWidgetInfo.id = id; 1774 appWidgetInfo.screenId = c.getInt(screenIndex); 1775 appWidgetInfo.cellX = c.getInt(cellXIndex); 1776 appWidgetInfo.cellY = c.getInt(cellYIndex); 1777 appWidgetInfo.spanX = c.getInt(spanXIndex); 1778 appWidgetInfo.spanY = c.getInt(spanYIndex); 1779 int[] minSpan = Launcher.getMinSpanForWidget(context, provider); 1780 appWidgetInfo.minSpanX = minSpan[0]; 1781 appWidgetInfo.minSpanY = minSpan[1]; 1782 1783 container = c.getInt(containerIndex); 1784 if (container != LauncherSettings.Favorites.CONTAINER_DESKTOP && 1785 container != LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 1786 Log.e(TAG, "Widget found where container != " + 1787 "CONTAINER_DESKTOP nor CONTAINER_HOTSEAT - ignoring!"); 1788 continue; 1789 } 1790 1791 appWidgetInfo.container = c.getInt(containerIndex); 1792 // check & update map of what's occupied 1793 if (!checkItemPlacement(occupied, appWidgetInfo)) { 1794 break; 1795 } 1796 sBgItemsIdMap.put(appWidgetInfo.id, appWidgetInfo); 1797 sBgAppWidgets.add(appWidgetInfo); 1798 } 1799 break; 1800 } 1801 } catch (Exception e) { 1802 Log.w(TAG, "Desktop items loading interrupted:", e); 1803 } 1804 } 1805 } finally { 1806 if (c != null) { 1807 c.close(); 1808 } 1809 } 1810 1811 if (itemsToRemove.size() > 0) { 1812 ContentProviderClient client = contentResolver.acquireContentProviderClient( 1813 LauncherSettings.Favorites.CONTENT_URI); 1814 // Remove dead items 1815 for (long id : itemsToRemove) { 1816 if (DEBUG_LOADERS) { 1817 Log.d(TAG, "Removed id = " + id); 1818 } 1819 // Don't notify content observers 1820 try { 1821 client.delete(LauncherSettings.Favorites.getContentUri(id, false), 1822 null, null); 1823 } catch (RemoteException e) { 1824 Log.w(TAG, "Could not remove id = " + id); 1825 } 1826 } 1827 } 1828 1829 if (loadedOldDb) { 1830 long maxScreenId = 0; 1831 // If we're importing we use the old screen order. 1832 for (ItemInfo item: sBgItemsIdMap.values()) { 1833 long screenId = item.screenId; 1834 if (item.container == LauncherSettings.Favorites.CONTAINER_DESKTOP && 1835 !sBgWorkspaceScreens.contains(screenId)) { 1836 Log.d(TAG, "10249126 - loadWorkspace-loadedOldDb(" + screenId + ")"); 1837 sBgWorkspaceScreens.add(screenId); 1838 if (screenId > maxScreenId) { 1839 maxScreenId = screenId; 1840 } 1841 } 1842 } 1843 Collections.sort(sBgWorkspaceScreens); 1844 mApp.getLauncherProvider().updateMaxScreenId(maxScreenId); 1845 updateWorkspaceScreenOrder(context, sBgWorkspaceScreens); 1846 1847 // Update the max item id after we load an old db 1848 long maxItemId = 0; 1849 // If we're importing we use the old screen order. 1850 for (ItemInfo item: sBgItemsIdMap.values()) { 1851 maxItemId = Math.max(maxItemId, item.id); 1852 } 1853 LauncherAppState app = LauncherAppState.getInstance(); 1854 app.getLauncherProvider().updateMaxItemId(maxItemId); 1855 } else { 1856 Uri screensUri = LauncherSettings.WorkspaceScreens.CONTENT_URI; 1857 final Cursor sc = contentResolver.query(screensUri, null, null, null, null); 1858 TreeMap<Integer, Long> orderedScreens = new TreeMap<Integer, Long>(); 1859 1860 try { 1861 final int idIndex = sc.getColumnIndexOrThrow( 1862 LauncherSettings.WorkspaceScreens._ID); 1863 final int rankIndex = sc.getColumnIndexOrThrow( 1864 LauncherSettings.WorkspaceScreens.SCREEN_RANK); 1865 while (sc.moveToNext()) { 1866 try { 1867 long screenId = sc.getLong(idIndex); 1868 int rank = sc.getInt(rankIndex); 1869 1870 orderedScreens.put(rank, screenId); 1871 } catch (Exception e) { 1872 Log.w(TAG, "Desktop items loading interrupted:", e); 1873 } 1874 } 1875 } finally { 1876 sc.close(); 1877 } 1878 1879 Iterator<Integer> iter = orderedScreens.keySet().iterator(); 1880 while (iter.hasNext()) { 1881 sBgWorkspaceScreens.add(orderedScreens.get(iter.next())); 1882 } 1883 1884 // Remove any empty screens 1885 Log.d(TAG, "10249126 - loadWorkspace-!loadedOldDb()"); 1886 ArrayList<Long> unusedScreens = new ArrayList<Long>(); 1887 unusedScreens.addAll(sBgWorkspaceScreens); 1888 1889 for (ItemInfo item: sBgItemsIdMap.values()) { 1890 long screenId = item.screenId; 1891 1892 if (item.container == LauncherSettings.Favorites.CONTAINER_DESKTOP && 1893 unusedScreens.contains(screenId)) { 1894 unusedScreens.remove(screenId); 1895 } 1896 } 1897 1898 // If there are any empty screens remove them, and update. 1899 if (unusedScreens.size() != 0) { 1900 sBgWorkspaceScreens.removeAll(unusedScreens); 1901 updateWorkspaceScreenOrder(context, sBgWorkspaceScreens); 1902 } 1903 } 1904 1905 if (DEBUG_LOADERS) { 1906 Log.d(TAG, "loaded workspace in " + (SystemClock.uptimeMillis()-t) + "ms"); 1907 Log.d(TAG, "workspace layout: "); 1908 int nScreens = occupied.size(); 1909 for (int y = 0; y < mCellCountY; y++) { 1910 String line = ""; 1911 1912 Iterator<Long> iter = occupied.keySet().iterator(); 1913 while (iter.hasNext()) { 1914 long screenId = iter.next(); 1915 if (screenId > 0) { 1916 line += " | "; 1917 } 1918 for (int x = 0; x < mCellCountX; x++) { 1919 line += ((occupied.get(screenId)[x][y] != null) ? "#" : "."); 1920 } 1921 } 1922 Log.d(TAG, "[ " + line + " ]"); 1923 } 1924 } 1925 } 1926 return loadedOldDb; 1927 } 1928 1929 /** Filters the set of items who are directly or indirectly (via another container) on the 1930 * specified screen. */ 1931 private void filterCurrentWorkspaceItems(int currentScreen, 1932 ArrayList<ItemInfo> allWorkspaceItems, 1933 ArrayList<ItemInfo> currentScreenItems, 1934 ArrayList<ItemInfo> otherScreenItems) { 1935 // Purge any null ItemInfos 1936 Iterator<ItemInfo> iter = allWorkspaceItems.iterator(); 1937 while (iter.hasNext()) { 1938 ItemInfo i = iter.next(); 1939 if (i == null) { 1940 iter.remove(); 1941 } 1942 } 1943 1944 // If we aren't filtering on a screen, then the set of items to load is the full set of 1945 // items given. 1946 if (currentScreen < 0) { 1947 currentScreenItems.addAll(allWorkspaceItems); 1948 } 1949 1950 // Order the set of items by their containers first, this allows use to walk through the 1951 // list sequentially, build up a list of containers that are in the specified screen, 1952 // as well as all items in those containers. 1953 Set<Long> itemsOnScreen = new HashSet<Long>(); 1954 Collections.sort(allWorkspaceItems, new Comparator<ItemInfo>() { 1955 @Override 1956 public int compare(ItemInfo lhs, ItemInfo rhs) { 1957 return (int) (lhs.container - rhs.container); 1958 } 1959 }); 1960 for (ItemInfo info : allWorkspaceItems) { 1961 if (info.container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 1962 if (info.screenId == currentScreen) { 1963 currentScreenItems.add(info); 1964 itemsOnScreen.add(info.id); 1965 } else { 1966 otherScreenItems.add(info); 1967 } 1968 } else if (info.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 1969 currentScreenItems.add(info); 1970 itemsOnScreen.add(info.id); 1971 } else { 1972 if (itemsOnScreen.contains(info.container)) { 1973 currentScreenItems.add(info); 1974 itemsOnScreen.add(info.id); 1975 } else { 1976 otherScreenItems.add(info); 1977 } 1978 } 1979 } 1980 } 1981 1982 /** Filters the set of widgets which are on the specified screen. */ 1983 private void filterCurrentAppWidgets(int currentScreen, 1984 ArrayList<LauncherAppWidgetInfo> appWidgets, 1985 ArrayList<LauncherAppWidgetInfo> currentScreenWidgets, 1986 ArrayList<LauncherAppWidgetInfo> otherScreenWidgets) { 1987 // If we aren't filtering on a screen, then the set of items to load is the full set of 1988 // widgets given. 1989 if (currentScreen < 0) { 1990 currentScreenWidgets.addAll(appWidgets); 1991 } 1992 1993 for (LauncherAppWidgetInfo widget : appWidgets) { 1994 if (widget == null) continue; 1995 if (widget.container == LauncherSettings.Favorites.CONTAINER_DESKTOP && 1996 widget.screenId == currentScreen) { 1997 currentScreenWidgets.add(widget); 1998 } else { 1999 otherScreenWidgets.add(widget); 2000 } 2001 } 2002 } 2003 2004 /** Filters the set of folders which are on the specified screen. */ 2005 private void filterCurrentFolders(int currentScreen, 2006 HashMap<Long, ItemInfo> itemsIdMap, 2007 HashMap<Long, FolderInfo> folders, 2008 HashMap<Long, FolderInfo> currentScreenFolders, 2009 HashMap<Long, FolderInfo> otherScreenFolders) { 2010 // If we aren't filtering on a screen, then the set of items to load is the full set of 2011 // widgets given. 2012 if (currentScreen < 0) { 2013 currentScreenFolders.putAll(folders); 2014 } 2015 2016 for (long id : folders.keySet()) { 2017 ItemInfo info = itemsIdMap.get(id); 2018 FolderInfo folder = folders.get(id); 2019 if (info == null || folder == null) continue; 2020 if (info.container == LauncherSettings.Favorites.CONTAINER_DESKTOP && 2021 info.screenId == currentScreen) { 2022 currentScreenFolders.put(id, folder); 2023 } else { 2024 otherScreenFolders.put(id, folder); 2025 } 2026 } 2027 } 2028 2029 /** Sorts the set of items by hotseat, workspace (spatially from top to bottom, left to 2030 * right) */ 2031 private void sortWorkspaceItemsSpatially(ArrayList<ItemInfo> workspaceItems) { 2032 // XXX: review this 2033 Collections.sort(workspaceItems, new Comparator<ItemInfo>() { 2034 @Override 2035 public int compare(ItemInfo lhs, ItemInfo rhs) { 2036 int cellCountX = LauncherModel.getCellCountX(); 2037 int cellCountY = LauncherModel.getCellCountY(); 2038 int screenOffset = cellCountX * cellCountY; 2039 int containerOffset = screenOffset * (Launcher.SCREEN_COUNT + 1); // +1 hotseat 2040 long lr = (lhs.container * containerOffset + lhs.screenId * screenOffset + 2041 lhs.cellY * cellCountX + lhs.cellX); 2042 long rr = (rhs.container * containerOffset + rhs.screenId * screenOffset + 2043 rhs.cellY * cellCountX + rhs.cellX); 2044 return (int) (lr - rr); 2045 } 2046 }); 2047 } 2048 2049 private void bindWorkspaceScreens(final Callbacks oldCallbacks, 2050 final ArrayList<Long> orderedScreens) { 2051 Log.d(TAG, "10249126 - bindWorkspaceScreens()"); 2052 final Runnable r = new Runnable() { 2053 @Override 2054 public void run() { 2055 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2056 if (callbacks != null) { 2057 callbacks.bindScreens(orderedScreens); 2058 } 2059 } 2060 }; 2061 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2062 } 2063 2064 private void bindWorkspaceItems(final Callbacks oldCallbacks, 2065 final ArrayList<ItemInfo> workspaceItems, 2066 final ArrayList<LauncherAppWidgetInfo> appWidgets, 2067 final HashMap<Long, FolderInfo> folders, 2068 ArrayList<Runnable> deferredBindRunnables) { 2069 2070 final boolean postOnMainThread = (deferredBindRunnables != null); 2071 2072 // Bind the workspace items 2073 int N = workspaceItems.size(); 2074 for (int i = 0; i < N; i += ITEMS_CHUNK) { 2075 final int start = i; 2076 final int chunkSize = (i+ITEMS_CHUNK <= N) ? ITEMS_CHUNK : (N-i); 2077 final Runnable r = new Runnable() { 2078 @Override 2079 public void run() { 2080 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2081 if (callbacks != null) { 2082 callbacks.bindItems(workspaceItems, start, start+chunkSize, 2083 false); 2084 } 2085 } 2086 }; 2087 if (postOnMainThread) { 2088 deferredBindRunnables.add(r); 2089 } else { 2090 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2091 } 2092 } 2093 2094 // Bind the folders 2095 if (!folders.isEmpty()) { 2096 final Runnable r = new Runnable() { 2097 public void run() { 2098 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2099 if (callbacks != null) { 2100 callbacks.bindFolders(folders); 2101 } 2102 } 2103 }; 2104 if (postOnMainThread) { 2105 deferredBindRunnables.add(r); 2106 } else { 2107 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2108 } 2109 } 2110 2111 // Bind the widgets, one at a time 2112 N = appWidgets.size(); 2113 for (int i = 0; i < N; i++) { 2114 final LauncherAppWidgetInfo widget = appWidgets.get(i); 2115 final Runnable r = new Runnable() { 2116 public void run() { 2117 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2118 if (callbacks != null) { 2119 callbacks.bindAppWidget(widget); 2120 } 2121 } 2122 }; 2123 if (postOnMainThread) { 2124 deferredBindRunnables.add(r); 2125 } else { 2126 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2127 } 2128 } 2129 } 2130 2131 /** 2132 * Binds all loaded data to actual views on the main thread. 2133 */ 2134 private void bindWorkspace(int synchronizeBindPage, final boolean isUpgradePath) { 2135 final long t = SystemClock.uptimeMillis(); 2136 Runnable r; 2137 2138 // Don't use these two variables in any of the callback runnables. 2139 // Otherwise we hold a reference to them. 2140 final Callbacks oldCallbacks = mCallbacks.get(); 2141 if (oldCallbacks == null) { 2142 // This launcher has exited and nobody bothered to tell us. Just bail. 2143 Log.w(TAG, "LoaderTask running with no launcher"); 2144 return; 2145 } 2146 2147 final boolean isLoadingSynchronously = (synchronizeBindPage > -1); 2148 final int currentScreen = isLoadingSynchronously ? synchronizeBindPage : 2149 oldCallbacks.getCurrentWorkspaceScreen(); 2150 2151 // Load all the items that are on the current page first (and in the process, unbind 2152 // all the existing workspace items before we call startBinding() below. 2153 unbindWorkspaceItemsOnMainThread(); 2154 ArrayList<ItemInfo> workspaceItems = new ArrayList<ItemInfo>(); 2155 ArrayList<LauncherAppWidgetInfo> appWidgets = 2156 new ArrayList<LauncherAppWidgetInfo>(); 2157 HashMap<Long, FolderInfo> folders = new HashMap<Long, FolderInfo>(); 2158 HashMap<Long, ItemInfo> itemsIdMap = new HashMap<Long, ItemInfo>(); 2159 ArrayList<Long> orderedScreenIds = new ArrayList<Long>(); 2160 synchronized (sBgLock) { 2161 workspaceItems.addAll(sBgWorkspaceItems); 2162 appWidgets.addAll(sBgAppWidgets); 2163 folders.putAll(sBgFolders); 2164 itemsIdMap.putAll(sBgItemsIdMap); 2165 orderedScreenIds.addAll(sBgWorkspaceScreens); 2166 } 2167 2168 ArrayList<ItemInfo> currentWorkspaceItems = new ArrayList<ItemInfo>(); 2169 ArrayList<ItemInfo> otherWorkspaceItems = new ArrayList<ItemInfo>(); 2170 ArrayList<LauncherAppWidgetInfo> currentAppWidgets = 2171 new ArrayList<LauncherAppWidgetInfo>(); 2172 ArrayList<LauncherAppWidgetInfo> otherAppWidgets = 2173 new ArrayList<LauncherAppWidgetInfo>(); 2174 HashMap<Long, FolderInfo> currentFolders = new HashMap<Long, FolderInfo>(); 2175 HashMap<Long, FolderInfo> otherFolders = new HashMap<Long, FolderInfo>(); 2176 2177 // Separate the items that are on the current screen, and all the other remaining items 2178 filterCurrentWorkspaceItems(currentScreen, workspaceItems, currentWorkspaceItems, 2179 otherWorkspaceItems); 2180 filterCurrentAppWidgets(currentScreen, appWidgets, currentAppWidgets, 2181 otherAppWidgets); 2182 filterCurrentFolders(currentScreen, itemsIdMap, folders, currentFolders, 2183 otherFolders); 2184 sortWorkspaceItemsSpatially(currentWorkspaceItems); 2185 sortWorkspaceItemsSpatially(otherWorkspaceItems); 2186 2187 // Tell the workspace that we're about to start binding items 2188 r = new Runnable() { 2189 public void run() { 2190 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2191 if (callbacks != null) { 2192 callbacks.startBinding(); 2193 } 2194 } 2195 }; 2196 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2197 2198 bindWorkspaceScreens(oldCallbacks, orderedScreenIds); 2199 2200 // Load items on the current page 2201 bindWorkspaceItems(oldCallbacks, currentWorkspaceItems, currentAppWidgets, 2202 currentFolders, null); 2203 if (isLoadingSynchronously) { 2204 r = new Runnable() { 2205 public void run() { 2206 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2207 if (callbacks != null) { 2208 callbacks.onPageBoundSynchronously(currentScreen); 2209 } 2210 } 2211 }; 2212 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2213 } 2214 2215 // Load all the remaining pages (if we are loading synchronously, we want to defer this 2216 // work until after the first render) 2217 mDeferredBindRunnables.clear(); 2218 bindWorkspaceItems(oldCallbacks, otherWorkspaceItems, otherAppWidgets, otherFolders, 2219 (isLoadingSynchronously ? mDeferredBindRunnables : null)); 2220 2221 // Tell the workspace that we're done binding items 2222 r = new Runnable() { 2223 public void run() { 2224 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2225 if (callbacks != null) { 2226 callbacks.finishBindingItems(isUpgradePath); 2227 } 2228 2229 // If we're profiling, ensure this is the last thing in the queue. 2230 if (DEBUG_LOADERS) { 2231 Log.d(TAG, "bound workspace in " 2232 + (SystemClock.uptimeMillis()-t) + "ms"); 2233 } 2234 2235 mIsLoadingAndBindingWorkspace = false; 2236 } 2237 }; 2238 if (isLoadingSynchronously) { 2239 mDeferredBindRunnables.add(r); 2240 } else { 2241 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2242 } 2243 } 2244 2245 private void loadAndBindAllApps() { 2246 if (DEBUG_LOADERS) { 2247 Log.d(TAG, "loadAndBindAllApps mAllAppsLoaded=" + mAllAppsLoaded); 2248 } 2249 if (!mAllAppsLoaded) { 2250 loadAllApps(); 2251 synchronized (LoaderTask.this) { 2252 if (mStopped) { 2253 return; 2254 } 2255 mAllAppsLoaded = true; 2256 } 2257 } else { 2258 onlyBindAllApps(); 2259 } 2260 } 2261 2262 private void onlyBindAllApps() { 2263 final Callbacks oldCallbacks = mCallbacks.get(); 2264 if (oldCallbacks == null) { 2265 // This launcher has exited and nobody bothered to tell us. Just bail. 2266 Log.w(TAG, "LoaderTask running with no launcher (onlyBindAllApps)"); 2267 return; 2268 } 2269 2270 // shallow copy 2271 @SuppressWarnings("unchecked") 2272 final ArrayList<ApplicationInfo> list 2273 = (ArrayList<ApplicationInfo>) mBgAllAppsList.data.clone(); 2274 Runnable r = new Runnable() { 2275 public void run() { 2276 final long t = SystemClock.uptimeMillis(); 2277 final Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2278 if (callbacks != null) { 2279 callbacks.bindAllApplications(list); 2280 } 2281 if (DEBUG_LOADERS) { 2282 Log.d(TAG, "bound all " + list.size() + " apps from cache in " 2283 + (SystemClock.uptimeMillis()-t) + "ms"); 2284 } 2285 } 2286 }; 2287 boolean isRunningOnMainThread = !(sWorkerThread.getThreadId() == Process.myTid()); 2288 if (isRunningOnMainThread) { 2289 r.run(); 2290 } else { 2291 mHandler.post(r); 2292 } 2293 } 2294 2295 private void loadAllApps() { 2296 final long loadTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 2297 2298 // Don't use these two variables in any of the callback runnables. 2299 // Otherwise we hold a reference to them. 2300 final Callbacks oldCallbacks = mCallbacks.get(); 2301 if (oldCallbacks == null) { 2302 // This launcher has exited and nobody bothered to tell us. Just bail. 2303 Log.w(TAG, "LoaderTask running with no launcher (loadAllApps)"); 2304 return; 2305 } 2306 2307 final PackageManager packageManager = mContext.getPackageManager(); 2308 final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null); 2309 mainIntent.addCategory(Intent.CATEGORY_LAUNCHER); 2310 2311 // Clear the list of apps 2312 mBgAllAppsList.clear(); 2313 2314 // Query for the set of apps 2315 final long qiaTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 2316 List<ResolveInfo> apps = packageManager.queryIntentActivities(mainIntent, 0); 2317 if (DEBUG_LOADERS) { 2318 Log.d(TAG, "queryIntentActivities took " 2319 + (SystemClock.uptimeMillis()-qiaTime) + "ms"); 2320 Log.d(TAG, "queryIntentActivities got " + apps.size() + " apps"); 2321 } 2322 // Fail if we don't have any apps 2323 if (apps == null || apps.isEmpty()) { 2324 return; 2325 } 2326 // Sort the applications by name 2327 final long sortTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 2328 Collections.sort(apps, 2329 new LauncherModel.ShortcutNameComparator(packageManager, mLabelCache)); 2330 if (DEBUG_LOADERS) { 2331 Log.d(TAG, "sort took " 2332 + (SystemClock.uptimeMillis()-sortTime) + "ms"); 2333 } 2334 2335 // Create the ApplicationInfos 2336 final long addTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 2337 for (int i = 0; i < apps.size(); i++) { 2338 // This builds the icon bitmaps. 2339 mBgAllAppsList.add(new ApplicationInfo(packageManager, apps.get(i), 2340 mIconCache, mLabelCache)); 2341 } 2342 2343 final Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2344 final ArrayList<ApplicationInfo> added = mBgAllAppsList.added; 2345 mBgAllAppsList.added = new ArrayList<ApplicationInfo>(); 2346 2347 // Post callback on main thread 2348 mHandler.post(new Runnable() { 2349 public void run() { 2350 final long bindTime = SystemClock.uptimeMillis(); 2351 if (callbacks != null) { 2352 callbacks.bindAllApplications(added); 2353 if (DEBUG_LOADERS) { 2354 Log.d(TAG, "bound " + added.size() + " apps in " 2355 + (SystemClock.uptimeMillis() - bindTime) + "ms"); 2356 } 2357 } else { 2358 Log.i(TAG, "not binding apps: no Launcher activity"); 2359 } 2360 } 2361 }); 2362 2363 if (DEBUG_LOADERS) { 2364 Log.d(TAG, "Icons processed in " 2365 + (SystemClock.uptimeMillis() - loadTime) + "ms"); 2366 } 2367 } 2368 2369 public void dumpState() { 2370 synchronized (sBgLock) { 2371 Log.d(TAG, "mLoaderTask.mContext=" + mContext); 2372 Log.d(TAG, "mLoaderTask.mIsLaunching=" + mIsLaunching); 2373 Log.d(TAG, "mLoaderTask.mStopped=" + mStopped); 2374 Log.d(TAG, "mLoaderTask.mLoadAndBindStepFinished=" + mLoadAndBindStepFinished); 2375 Log.d(TAG, "mItems size=" + sBgWorkspaceItems.size()); 2376 } 2377 } 2378 } 2379 2380 void enqueuePackageUpdated(PackageUpdatedTask task) { 2381 sWorker.post(task); 2382 } 2383 2384 private class PackageUpdatedTask implements Runnable { 2385 int mOp; 2386 String[] mPackages; 2387 2388 public static final int OP_NONE = 0; 2389 public static final int OP_ADD = 1; 2390 public static final int OP_UPDATE = 2; 2391 public static final int OP_REMOVE = 3; // uninstlled 2392 public static final int OP_UNAVAILABLE = 4; // external media unmounted 2393 2394 2395 public PackageUpdatedTask(int op, String[] packages) { 2396 mOp = op; 2397 mPackages = packages; 2398 } 2399 2400 public void run() { 2401 final Context context = mApp.getContext(); 2402 2403 final String[] packages = mPackages; 2404 final int N = packages.length; 2405 switch (mOp) { 2406 case OP_ADD: 2407 for (int i=0; i<N; i++) { 2408 if (DEBUG_LOADERS) Log.d(TAG, "mAllAppsList.addPackage " + packages[i]); 2409 mBgAllAppsList.addPackage(context, packages[i]); 2410 } 2411 break; 2412 case OP_UPDATE: 2413 for (int i=0; i<N; i++) { 2414 if (DEBUG_LOADERS) Log.d(TAG, "mAllAppsList.updatePackage " + packages[i]); 2415 mBgAllAppsList.updatePackage(context, packages[i]); 2416 WidgetPreviewLoader.removeFromDb( 2417 mApp.getWidgetPreviewCacheDb(), packages[i]); 2418 } 2419 break; 2420 case OP_REMOVE: 2421 case OP_UNAVAILABLE: 2422 for (int i=0; i<N; i++) { 2423 if (DEBUG_LOADERS) Log.d(TAG, "mAllAppsList.removePackage " + packages[i]); 2424 mBgAllAppsList.removePackage(packages[i]); 2425 WidgetPreviewLoader.removeFromDb( 2426 mApp.getWidgetPreviewCacheDb(), packages[i]); 2427 } 2428 break; 2429 } 2430 2431 ArrayList<ApplicationInfo> added = null; 2432 ArrayList<ApplicationInfo> modified = null; 2433 final ArrayList<ApplicationInfo> removedApps = new ArrayList<ApplicationInfo>(); 2434 2435 if (mBgAllAppsList.added.size() > 0) { 2436 added = new ArrayList<ApplicationInfo>(mBgAllAppsList.added); 2437 mBgAllAppsList.added.clear(); 2438 } 2439 if (mBgAllAppsList.modified.size() > 0) { 2440 modified = new ArrayList<ApplicationInfo>(mBgAllAppsList.modified); 2441 mBgAllAppsList.modified.clear(); 2442 } 2443 if (mBgAllAppsList.removed.size() > 0) { 2444 removedApps.addAll(mBgAllAppsList.removed); 2445 mBgAllAppsList.removed.clear(); 2446 } 2447 2448 final Callbacks callbacks = mCallbacks != null ? mCallbacks.get() : null; 2449 if (callbacks == null) { 2450 Log.w(TAG, "Nobody to tell about the new app. Launcher is probably loading."); 2451 return; 2452 } 2453 2454 if (added != null) { 2455 // Ensure that we add all the workspace applications to the db 2456 final ArrayList<ItemInfo> addedInfos = new ArrayList<ItemInfo>(added); 2457 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 2458 addAndBindAddedApps(context, addedInfos, cb); 2459 } 2460 if (modified != null) { 2461 final ArrayList<ApplicationInfo> modifiedFinal = modified; 2462 2463 // Update the launcher db to reflect the changes 2464 for (ApplicationInfo a : modifiedFinal) { 2465 ArrayList<ItemInfo> infos = 2466 getItemInfoForComponentName(a.componentName); 2467 for (ItemInfo i : infos) { 2468 if (isShortcutInfoUpdateable(i)) { 2469 ShortcutInfo info = (ShortcutInfo) i; 2470 info.title = a.title.toString(); 2471 updateItemInDatabase(context, info); 2472 } 2473 } 2474 } 2475 2476 mHandler.post(new Runnable() { 2477 public void run() { 2478 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 2479 if (callbacks == cb && cb != null) { 2480 callbacks.bindAppsUpdated(modifiedFinal); 2481 } 2482 } 2483 }); 2484 } 2485 // If a package has been removed, or an app has been removed as a result of 2486 // an update (for example), make the removed callback. 2487 if (mOp == OP_REMOVE || !removedApps.isEmpty()) { 2488 final boolean packageRemoved = (mOp == OP_REMOVE); 2489 final ArrayList<String> removedPackageNames = 2490 new ArrayList<String>(Arrays.asList(packages)); 2491 2492 // Update the launcher db to reflect the removal of apps 2493 if (packageRemoved) { 2494 for (String pn : removedPackageNames) { 2495 ArrayList<ItemInfo> infos = getItemInfoForPackageName(pn); 2496 for (ItemInfo i : infos) { 2497 deleteItemFromDatabase(context, i); 2498 } 2499 } 2500 } else { 2501 for (ApplicationInfo a : removedApps) { 2502 ArrayList<ItemInfo> infos = 2503 getItemInfoForComponentName(a.componentName); 2504 for (ItemInfo i : infos) { 2505 deleteItemFromDatabase(context, i); 2506 } 2507 } 2508 } 2509 2510 mHandler.post(new Runnable() { 2511 public void run() { 2512 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 2513 if (callbacks == cb && cb != null) { 2514 callbacks.bindComponentsRemoved(removedPackageNames, 2515 removedApps, packageRemoved); 2516 } 2517 } 2518 }); 2519 } 2520 2521 final ArrayList<Object> widgetsAndShortcuts = 2522 getSortedWidgetsAndShortcuts(context); 2523 mHandler.post(new Runnable() { 2524 @Override 2525 public void run() { 2526 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 2527 if (callbacks == cb && cb != null) { 2528 callbacks.bindPackagesUpdated(widgetsAndShortcuts); 2529 } 2530 } 2531 }); 2532 } 2533 } 2534 2535 // Returns a list of ResolveInfos/AppWindowInfos in sorted order 2536 public static ArrayList<Object> getSortedWidgetsAndShortcuts(Context context) { 2537 PackageManager packageManager = context.getPackageManager(); 2538 final ArrayList<Object> widgetsAndShortcuts = new ArrayList<Object>(); 2539 widgetsAndShortcuts.addAll(AppWidgetManager.getInstance(context).getInstalledProviders()); 2540 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 2541 widgetsAndShortcuts.addAll(packageManager.queryIntentActivities(shortcutsIntent, 0)); 2542 Collections.sort(widgetsAndShortcuts, 2543 new LauncherModel.WidgetAndShortcutNameComparator(packageManager)); 2544 return widgetsAndShortcuts; 2545 } 2546 2547 private boolean isValidPackageComponent(PackageManager pm, ComponentName cn) { 2548 if (cn == null) { 2549 return false; 2550 } 2551 2552 try { 2553 return (pm.getActivityInfo(cn, 0) != null); 2554 } catch (NameNotFoundException e) { 2555 return false; 2556 } 2557 } 2558 2559 /** 2560 * This is called from the code that adds shortcuts from the intent receiver. This 2561 * doesn't have a Cursor, but 2562 */ 2563 public ShortcutInfo getShortcutInfo(PackageManager manager, Intent intent, Context context) { 2564 return getShortcutInfo(manager, intent, context, null, -1, -1, null); 2565 } 2566 2567 /** 2568 * Make an ShortcutInfo object for a shortcut that is an application. 2569 * 2570 * If c is not null, then it will be used to fill in missing data like the title and icon. 2571 */ 2572 public ShortcutInfo getShortcutInfo(PackageManager manager, Intent intent, Context context, 2573 Cursor c, int iconIndex, int titleIndex, HashMap<Object, CharSequence> labelCache) { 2574 ComponentName componentName = intent.getComponent(); 2575 final ShortcutInfo info = new ShortcutInfo(); 2576 if (!isValidPackageComponent(manager, componentName)) { 2577 Log.d(TAG, "Invalid package found in getShortcutInfo: " + componentName); 2578 return null; 2579 } else { 2580 try { 2581 PackageInfo pi = manager.getPackageInfo(componentName.getPackageName(), 0); 2582 info.initFlagsAndFirstInstallTime(pi); 2583 } catch (NameNotFoundException e) { 2584 Log.d(TAG, "getPackInfo failed for package " + 2585 componentName.getPackageName()); 2586 } 2587 } 2588 2589 // TODO: See if the PackageManager knows about this case. If it doesn't 2590 // then return null & delete this. 2591 2592 // the resource -- This may implicitly give us back the fallback icon, 2593 // but don't worry about that. All we're doing with usingFallbackIcon is 2594 // to avoid saving lots of copies of that in the database, and most apps 2595 // have icons anyway. 2596 2597 // Attempt to use queryIntentActivities to get the ResolveInfo (with IntentFilter info) and 2598 // if that fails, or is ambiguious, fallback to the standard way of getting the resolve info 2599 // via resolveActivity(). 2600 Bitmap icon = null; 2601 ResolveInfo resolveInfo = null; 2602 ComponentName oldComponent = intent.getComponent(); 2603 Intent newIntent = new Intent(intent.getAction(), null); 2604 newIntent.addCategory(Intent.CATEGORY_LAUNCHER); 2605 newIntent.setPackage(oldComponent.getPackageName()); 2606 List<ResolveInfo> infos = manager.queryIntentActivities(newIntent, 0); 2607 for (ResolveInfo i : infos) { 2608 ComponentName cn = new ComponentName(i.activityInfo.packageName, 2609 i.activityInfo.name); 2610 if (cn.equals(oldComponent)) { 2611 resolveInfo = i; 2612 } 2613 } 2614 if (resolveInfo == null) { 2615 resolveInfo = manager.resolveActivity(intent, 0); 2616 } 2617 if (resolveInfo != null) { 2618 icon = mIconCache.getIcon(componentName, resolveInfo, labelCache); 2619 } 2620 // the db 2621 if (icon == null) { 2622 if (c != null) { 2623 icon = getIconFromCursor(c, iconIndex, context); 2624 } 2625 } 2626 // the fallback icon 2627 if (icon == null) { 2628 icon = getFallbackIcon(); 2629 info.usingFallbackIcon = true; 2630 } 2631 info.setIcon(icon); 2632 2633 // from the resource 2634 if (resolveInfo != null) { 2635 ComponentName key = LauncherModel.getComponentNameFromResolveInfo(resolveInfo); 2636 if (labelCache != null && labelCache.containsKey(key)) { 2637 info.title = labelCache.get(key); 2638 } else { 2639 info.title = resolveInfo.activityInfo.loadLabel(manager); 2640 if (labelCache != null) { 2641 labelCache.put(key, info.title); 2642 } 2643 } 2644 } 2645 // from the db 2646 if (info.title == null) { 2647 if (c != null) { 2648 info.title = c.getString(titleIndex); 2649 } 2650 } 2651 // fall back to the class name of the activity 2652 if (info.title == null) { 2653 info.title = componentName.getClassName(); 2654 } 2655 info.itemType = LauncherSettings.Favorites.ITEM_TYPE_APPLICATION; 2656 return info; 2657 } 2658 2659 static ArrayList<ItemInfo> filterItemInfos(Collection<ItemInfo> infos, 2660 ItemInfoFilter f) { 2661 HashSet<ItemInfo> filtered = new HashSet<ItemInfo>(); 2662 for (ItemInfo i : infos) { 2663 if (i instanceof ShortcutInfo) { 2664 ShortcutInfo info = (ShortcutInfo) i; 2665 ComponentName cn = info.intent.getComponent(); 2666 if (cn != null && f.filterItem(null, info, cn)) { 2667 filtered.add(info); 2668 } 2669 } else if (i instanceof FolderInfo) { 2670 FolderInfo info = (FolderInfo) i; 2671 for (ShortcutInfo s : info.contents) { 2672 ComponentName cn = s.intent.getComponent(); 2673 if (cn != null && f.filterItem(info, s, cn)) { 2674 filtered.add(s); 2675 } 2676 } 2677 } else if (i instanceof LauncherAppWidgetInfo) { 2678 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) i; 2679 ComponentName cn = info.providerName; 2680 if (cn != null && f.filterItem(null, info, cn)) { 2681 filtered.add(info); 2682 } 2683 } 2684 } 2685 return new ArrayList<ItemInfo>(filtered); 2686 } 2687 2688 private ArrayList<ItemInfo> getItemInfoForPackageName(final String pn) { 2689 HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 2690 ItemInfoFilter filter = new ItemInfoFilter() { 2691 @Override 2692 public boolean filterItem(ItemInfo parent, ItemInfo info, ComponentName cn) { 2693 return cn.getPackageName().equals(pn); 2694 } 2695 }; 2696 return filterItemInfos(sBgItemsIdMap.values(), filter); 2697 } 2698 2699 private ArrayList<ItemInfo> getItemInfoForComponentName(final ComponentName cname) { 2700 HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 2701 ItemInfoFilter filter = new ItemInfoFilter() { 2702 @Override 2703 public boolean filterItem(ItemInfo parent, ItemInfo info, ComponentName cn) { 2704 return cn.equals(cname); 2705 } 2706 }; 2707 return filterItemInfos(sBgItemsIdMap.values(), filter); 2708 } 2709 2710 public static boolean isShortcutInfoUpdateable(ItemInfo i) { 2711 if (i instanceof ShortcutInfo) { 2712 ShortcutInfo info = (ShortcutInfo) i; 2713 // We need to check for ACTION_MAIN otherwise getComponent() might 2714 // return null for some shortcuts (for instance, for shortcuts to 2715 // web pages.) 2716 Intent intent = info.intent; 2717 ComponentName name = intent.getComponent(); 2718 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION && 2719 Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 2720 return true; 2721 } 2722 } 2723 return false; 2724 } 2725 2726 /** 2727 * Make an ShortcutInfo object for a shortcut that isn't an application. 2728 */ 2729 private ShortcutInfo getShortcutInfo(Cursor c, Context context, 2730 int iconTypeIndex, int iconPackageIndex, int iconResourceIndex, int iconIndex, 2731 int titleIndex) { 2732 2733 Bitmap icon = null; 2734 final ShortcutInfo info = new ShortcutInfo(); 2735 info.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 2736 2737 // TODO: If there's an explicit component and we can't install that, delete it. 2738 2739 info.title = c.getString(titleIndex); 2740 2741 int iconType = c.getInt(iconTypeIndex); 2742 switch (iconType) { 2743 case LauncherSettings.Favorites.ICON_TYPE_RESOURCE: 2744 String packageName = c.getString(iconPackageIndex); 2745 String resourceName = c.getString(iconResourceIndex); 2746 PackageManager packageManager = context.getPackageManager(); 2747 info.customIcon = false; 2748 // the resource 2749 try { 2750 Resources resources = packageManager.getResourcesForApplication(packageName); 2751 if (resources != null) { 2752 final int id = resources.getIdentifier(resourceName, null, null); 2753 icon = Utilities.createIconBitmap( 2754 mIconCache.getFullResIcon(resources, id), context); 2755 } 2756 } catch (Exception e) { 2757 // drop this. we have other places to look for icons 2758 } 2759 // the db 2760 if (icon == null) { 2761 icon = getIconFromCursor(c, iconIndex, context); 2762 } 2763 // the fallback icon 2764 if (icon == null) { 2765 icon = getFallbackIcon(); 2766 info.usingFallbackIcon = true; 2767 } 2768 break; 2769 case LauncherSettings.Favorites.ICON_TYPE_BITMAP: 2770 icon = getIconFromCursor(c, iconIndex, context); 2771 if (icon == null) { 2772 icon = getFallbackIcon(); 2773 info.customIcon = false; 2774 info.usingFallbackIcon = true; 2775 } else { 2776 info.customIcon = true; 2777 } 2778 break; 2779 default: 2780 icon = getFallbackIcon(); 2781 info.usingFallbackIcon = true; 2782 info.customIcon = false; 2783 break; 2784 } 2785 info.setIcon(icon); 2786 return info; 2787 } 2788 2789 Bitmap getIconFromCursor(Cursor c, int iconIndex, Context context) { 2790 @SuppressWarnings("all") // suppress dead code warning 2791 final boolean debug = false; 2792 if (debug) { 2793 Log.d(TAG, "getIconFromCursor app=" 2794 + c.getString(c.getColumnIndexOrThrow(LauncherSettings.Favorites.TITLE))); 2795 } 2796 byte[] data = c.getBlob(iconIndex); 2797 try { 2798 return Utilities.createIconBitmap( 2799 BitmapFactory.decodeByteArray(data, 0, data.length), context); 2800 } catch (Exception e) { 2801 return null; 2802 } 2803 } 2804 2805 ShortcutInfo addShortcut(Context context, Intent data, long container, int screen, 2806 int cellX, int cellY, boolean notify) { 2807 final ShortcutInfo info = infoFromShortcutIntent(context, data, null); 2808 if (info == null) { 2809 return null; 2810 } 2811 addItemToDatabase(context, info, container, screen, cellX, cellY, notify); 2812 2813 return info; 2814 } 2815 2816 /** 2817 * Attempts to find an AppWidgetProviderInfo that matches the given component. 2818 */ 2819 AppWidgetProviderInfo findAppWidgetProviderInfoWithComponent(Context context, 2820 ComponentName component) { 2821 List<AppWidgetProviderInfo> widgets = 2822 AppWidgetManager.getInstance(context).getInstalledProviders(); 2823 for (AppWidgetProviderInfo info : widgets) { 2824 if (info.provider.equals(component)) { 2825 return info; 2826 } 2827 } 2828 return null; 2829 } 2830 2831 /** 2832 * Returns a list of all the widgets that can handle configuration with a particular mimeType. 2833 */ 2834 List<WidgetMimeTypeHandlerData> resolveWidgetsForMimeType(Context context, String mimeType) { 2835 final PackageManager packageManager = context.getPackageManager(); 2836 final List<WidgetMimeTypeHandlerData> supportedConfigurationActivities = 2837 new ArrayList<WidgetMimeTypeHandlerData>(); 2838 2839 final Intent supportsIntent = 2840 new Intent(InstallWidgetReceiver.ACTION_SUPPORTS_CLIPDATA_MIMETYPE); 2841 supportsIntent.setType(mimeType); 2842 2843 // Create a set of widget configuration components that we can test against 2844 final List<AppWidgetProviderInfo> widgets = 2845 AppWidgetManager.getInstance(context).getInstalledProviders(); 2846 final HashMap<ComponentName, AppWidgetProviderInfo> configurationComponentToWidget = 2847 new HashMap<ComponentName, AppWidgetProviderInfo>(); 2848 for (AppWidgetProviderInfo info : widgets) { 2849 configurationComponentToWidget.put(info.configure, info); 2850 } 2851 2852 // Run through each of the intents that can handle this type of clip data, and cross 2853 // reference them with the components that are actual configuration components 2854 final List<ResolveInfo> activities = packageManager.queryIntentActivities(supportsIntent, 2855 PackageManager.MATCH_DEFAULT_ONLY); 2856 for (ResolveInfo info : activities) { 2857 final ActivityInfo activityInfo = info.activityInfo; 2858 final ComponentName infoComponent = new ComponentName(activityInfo.packageName, 2859 activityInfo.name); 2860 if (configurationComponentToWidget.containsKey(infoComponent)) { 2861 supportedConfigurationActivities.add( 2862 new InstallWidgetReceiver.WidgetMimeTypeHandlerData(info, 2863 configurationComponentToWidget.get(infoComponent))); 2864 } 2865 } 2866 return supportedConfigurationActivities; 2867 } 2868 2869 ShortcutInfo infoFromShortcutIntent(Context context, Intent data, Bitmap fallbackIcon) { 2870 Intent intent = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_INTENT); 2871 String name = data.getStringExtra(Intent.EXTRA_SHORTCUT_NAME); 2872 Parcelable bitmap = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON); 2873 2874 if (intent == null) { 2875 // If the intent is null, we can't construct a valid ShortcutInfo, so we return null 2876 Log.e(TAG, "Can't construct ShorcutInfo with null intent"); 2877 return null; 2878 } 2879 2880 Bitmap icon = null; 2881 boolean customIcon = false; 2882 ShortcutIconResource iconResource = null; 2883 2884 if (bitmap != null && bitmap instanceof Bitmap) { 2885 icon = Utilities.createIconBitmap(new FastBitmapDrawable((Bitmap)bitmap), context); 2886 customIcon = true; 2887 } else { 2888 Parcelable extra = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE); 2889 if (extra != null && extra instanceof ShortcutIconResource) { 2890 try { 2891 iconResource = (ShortcutIconResource) extra; 2892 final PackageManager packageManager = context.getPackageManager(); 2893 Resources resources = packageManager.getResourcesForApplication( 2894 iconResource.packageName); 2895 final int id = resources.getIdentifier(iconResource.resourceName, null, null); 2896 icon = Utilities.createIconBitmap( 2897 mIconCache.getFullResIcon(resources, id), context); 2898 } catch (Exception e) { 2899 Log.w(TAG, "Could not load shortcut icon: " + extra); 2900 } 2901 } 2902 } 2903 2904 final ShortcutInfo info = new ShortcutInfo(); 2905 2906 if (icon == null) { 2907 if (fallbackIcon != null) { 2908 icon = fallbackIcon; 2909 } else { 2910 icon = getFallbackIcon(); 2911 info.usingFallbackIcon = true; 2912 } 2913 } 2914 info.setIcon(icon); 2915 2916 info.title = name; 2917 info.intent = intent; 2918 info.customIcon = customIcon; 2919 info.iconResource = iconResource; 2920 2921 return info; 2922 } 2923 2924 boolean queueIconToBeChecked(HashMap<Object, byte[]> cache, ShortcutInfo info, Cursor c, 2925 int iconIndex) { 2926 // If apps can't be on SD, don't even bother. 2927 if (!mAppsCanBeOnRemoveableStorage) { 2928 return false; 2929 } 2930 // If this icon doesn't have a custom icon, check to see 2931 // what's stored in the DB, and if it doesn't match what 2932 // we're going to show, store what we are going to show back 2933 // into the DB. We do this so when we're loading, if the 2934 // package manager can't find an icon (for example because 2935 // the app is on SD) then we can use that instead. 2936 if (!info.customIcon && !info.usingFallbackIcon) { 2937 cache.put(info, c.getBlob(iconIndex)); 2938 return true; 2939 } 2940 return false; 2941 } 2942 void updateSavedIcon(Context context, ShortcutInfo info, byte[] data) { 2943 boolean needSave = false; 2944 try { 2945 if (data != null) { 2946 Bitmap saved = BitmapFactory.decodeByteArray(data, 0, data.length); 2947 Bitmap loaded = info.getIcon(mIconCache); 2948 needSave = !saved.sameAs(loaded); 2949 } else { 2950 needSave = true; 2951 } 2952 } catch (Exception e) { 2953 needSave = true; 2954 } 2955 if (needSave) { 2956 Log.d(TAG, "going to save icon bitmap for info=" + info); 2957 // This is slower than is ideal, but this only happens once 2958 // or when the app is updated with a new icon. 2959 updateItemInDatabase(context, info); 2960 } 2961 } 2962 2963 /** 2964 * Return an existing FolderInfo object if we have encountered this ID previously, 2965 * or make a new one. 2966 */ 2967 private static FolderInfo findOrMakeFolder(HashMap<Long, FolderInfo> folders, long id) { 2968 // See if a placeholder was created for us already 2969 FolderInfo folderInfo = folders.get(id); 2970 if (folderInfo == null) { 2971 // No placeholder -- create a new instance 2972 folderInfo = new FolderInfo(); 2973 folders.put(id, folderInfo); 2974 } 2975 return folderInfo; 2976 } 2977 2978 public static final Comparator<ApplicationInfo> getAppNameComparator() { 2979 final Collator collator = Collator.getInstance(); 2980 return new Comparator<ApplicationInfo>() { 2981 public final int compare(ApplicationInfo a, ApplicationInfo b) { 2982 int result = collator.compare(a.title.toString(), b.title.toString()); 2983 if (result == 0) { 2984 result = a.componentName.compareTo(b.componentName); 2985 } 2986 return result; 2987 } 2988 }; 2989 } 2990 public static final Comparator<ApplicationInfo> APP_INSTALL_TIME_COMPARATOR 2991 = new Comparator<ApplicationInfo>() { 2992 public final int compare(ApplicationInfo a, ApplicationInfo b) { 2993 if (a.firstInstallTime < b.firstInstallTime) return 1; 2994 if (a.firstInstallTime > b.firstInstallTime) return -1; 2995 return 0; 2996 } 2997 }; 2998 public static final Comparator<AppWidgetProviderInfo> getWidgetNameComparator() { 2999 final Collator collator = Collator.getInstance(); 3000 return new Comparator<AppWidgetProviderInfo>() { 3001 public final int compare(AppWidgetProviderInfo a, AppWidgetProviderInfo b) { 3002 return collator.compare(a.label.toString(), b.label.toString()); 3003 } 3004 }; 3005 } 3006 static ComponentName getComponentNameFromResolveInfo(ResolveInfo info) { 3007 if (info.activityInfo != null) { 3008 return new ComponentName(info.activityInfo.packageName, info.activityInfo.name); 3009 } else { 3010 return new ComponentName(info.serviceInfo.packageName, info.serviceInfo.name); 3011 } 3012 } 3013 public static class ShortcutNameComparator implements Comparator<ResolveInfo> { 3014 private Collator mCollator; 3015 private PackageManager mPackageManager; 3016 private HashMap<Object, CharSequence> mLabelCache; 3017 ShortcutNameComparator(PackageManager pm) { 3018 mPackageManager = pm; 3019 mLabelCache = new HashMap<Object, CharSequence>(); 3020 mCollator = Collator.getInstance(); 3021 } 3022 ShortcutNameComparator(PackageManager pm, HashMap<Object, CharSequence> labelCache) { 3023 mPackageManager = pm; 3024 mLabelCache = labelCache; 3025 mCollator = Collator.getInstance(); 3026 } 3027 public final int compare(ResolveInfo a, ResolveInfo b) { 3028 CharSequence labelA, labelB; 3029 ComponentName keyA = LauncherModel.getComponentNameFromResolveInfo(a); 3030 ComponentName keyB = LauncherModel.getComponentNameFromResolveInfo(b); 3031 if (mLabelCache.containsKey(keyA)) { 3032 labelA = mLabelCache.get(keyA); 3033 } else { 3034 labelA = a.loadLabel(mPackageManager).toString(); 3035 3036 mLabelCache.put(keyA, labelA); 3037 } 3038 if (mLabelCache.containsKey(keyB)) { 3039 labelB = mLabelCache.get(keyB); 3040 } else { 3041 labelB = b.loadLabel(mPackageManager).toString(); 3042 3043 mLabelCache.put(keyB, labelB); 3044 } 3045 return mCollator.compare(labelA, labelB); 3046 } 3047 }; 3048 public static class WidgetAndShortcutNameComparator implements Comparator<Object> { 3049 private Collator mCollator; 3050 private PackageManager mPackageManager; 3051 private HashMap<Object, String> mLabelCache; 3052 WidgetAndShortcutNameComparator(PackageManager pm) { 3053 mPackageManager = pm; 3054 mLabelCache = new HashMap<Object, String>(); 3055 mCollator = Collator.getInstance(); 3056 } 3057 public final int compare(Object a, Object b) { 3058 String labelA, labelB; 3059 if (mLabelCache.containsKey(a)) { 3060 labelA = mLabelCache.get(a); 3061 } else { 3062 labelA = (a instanceof AppWidgetProviderInfo) ? 3063 ((AppWidgetProviderInfo) a).label : 3064 ((ResolveInfo) a).loadLabel(mPackageManager).toString(); 3065 mLabelCache.put(a, labelA); 3066 } 3067 if (mLabelCache.containsKey(b)) { 3068 labelB = mLabelCache.get(b); 3069 } else { 3070 labelB = (b instanceof AppWidgetProviderInfo) ? 3071 ((AppWidgetProviderInfo) b).label : 3072 ((ResolveInfo) b).loadLabel(mPackageManager).toString(); 3073 mLabelCache.put(b, labelB); 3074 } 3075 return mCollator.compare(labelA, labelB); 3076 } 3077 }; 3078 3079 public void dumpState() { 3080 Log.d(TAG, "mCallbacks=" + mCallbacks); 3081 ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList.data", mBgAllAppsList.data); 3082 ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList.added", mBgAllAppsList.added); 3083 ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList.removed", mBgAllAppsList.removed); 3084 ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList.modified", mBgAllAppsList.modified); 3085 if (mLoaderTask != null) { 3086 mLoaderTask.dumpState(); 3087 } else { 3088 Log.d(TAG, "mLoaderTask=null"); 3089 } 3090 } 3091} 3092