LauncherModel.java revision 3dba179949b4c1ce6d91c8eb847a91d9f2c56282
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 mAppsCanBeOnExternalStorage; 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 mAppsCanBeOnExternalStorage = !Environment.isExternalStorageEmulated(); 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 // Update the model 315 sBgWorkspaceScreens.add(screenId); 316 updateWorkspaceScreenOrder(context, sBgWorkspaceScreens); 317 // Save the screen id for binding in the workspace 318 addedWorkspaceScreensFinal.add(screenId); 319 numPagesToAdd--; 320 } 321 // Find the coordinate again 322 coords = LauncherModel.findNextAvailableIconSpace(context, 323 name, launchIntent, startSearchPageIndex); 324 } 325 if (coords == null) { 326 throw new RuntimeException("Coordinates should not be null"); 327 } 328 329 ShortcutInfo shortcutInfo; 330 if (a instanceof ShortcutInfo) { 331 shortcutInfo = (ShortcutInfo) a; 332 } else if (a instanceof ApplicationInfo) { 333 shortcutInfo = ((ApplicationInfo) a).makeShortcut(); 334 } else { 335 throw new RuntimeException("Unexpected info type"); 336 } 337 // Add the shortcut to the db 338 addItemToDatabase(context, shortcutInfo, 339 LauncherSettings.Favorites.CONTAINER_DESKTOP, 340 coords.first, coords.second[0], coords.second[1], false); 341 // Save the ShortcutInfo for binding in the workspace 342 addedShortcutsFinal.add(shortcutInfo); 343 } 344 } 345 346 if (!addedShortcutsFinal.isEmpty()) { 347 runOnMainThread(new Runnable() { 348 public void run() { 349 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 350 if (callbacks == cb && cb != null) { 351 callbacks.bindAddScreens(addedWorkspaceScreensFinal); 352 353 ItemInfo info = addedShortcutsFinal.get(addedShortcutsFinal.size() - 1); 354 long lastScreenId = info.screenId; 355 final ArrayList<ItemInfo> addAnimated = new ArrayList<ItemInfo>(); 356 final ArrayList<ItemInfo> addNotAnimated = new ArrayList<ItemInfo>(); 357 for (ItemInfo i : addedShortcutsFinal) { 358 if (i.screenId == lastScreenId) { 359 addAnimated.add(i); 360 } else { 361 addNotAnimated.add(i); 362 } 363 } 364 // We add the items without animation on non-visible pages, and with 365 // animations on the new page (which we will try and snap to). 366 if (!addNotAnimated.isEmpty()) { 367 callbacks.bindItems(addNotAnimated, 0, 368 addNotAnimated.size(), false); 369 } 370 if (!addAnimated.isEmpty()) { 371 callbacks.bindItems(addAnimated, 0, 372 addAnimated.size(), true); 373 } 374 } 375 } 376 }); 377 } 378 } 379 }; 380 runOnWorkerThread(r); 381 } 382 383 public Bitmap getFallbackIcon() { 384 return Bitmap.createBitmap(mDefaultIcon); 385 } 386 387 public void unbindItemInfosAndClearQueuedBindRunnables() { 388 if (sWorkerThread.getThreadId() == Process.myTid()) { 389 throw new RuntimeException("Expected unbindLauncherItemInfos() to be called from the " + 390 "main thread"); 391 } 392 393 // Clear any deferred bind runnables 394 mDeferredBindRunnables.clear(); 395 // Remove any queued bind runnables 396 mHandler.cancelAllRunnablesOfType(MAIN_THREAD_BINDING_RUNNABLE); 397 // Unbind all the workspace items 398 unbindWorkspaceItemsOnMainThread(); 399 } 400 401 /** Unbinds all the sBgWorkspaceItems and sBgAppWidgets on the main thread */ 402 void unbindWorkspaceItemsOnMainThread() { 403 // Ensure that we don't use the same workspace items data structure on the main thread 404 // by making a copy of workspace items first. 405 final ArrayList<ItemInfo> tmpWorkspaceItems = new ArrayList<ItemInfo>(); 406 final ArrayList<ItemInfo> tmpAppWidgets = new ArrayList<ItemInfo>(); 407 synchronized (sBgLock) { 408 tmpWorkspaceItems.addAll(sBgWorkspaceItems); 409 tmpAppWidgets.addAll(sBgAppWidgets); 410 } 411 Runnable r = new Runnable() { 412 @Override 413 public void run() { 414 for (ItemInfo item : tmpWorkspaceItems) { 415 item.unbind(); 416 } 417 for (ItemInfo item : tmpAppWidgets) { 418 item.unbind(); 419 } 420 } 421 }; 422 runOnMainThread(r); 423 } 424 425 /** 426 * Adds an item to the DB if it was not created previously, or move it to a new 427 * <container, screen, cellX, cellY> 428 */ 429 static void addOrMoveItemInDatabase(Context context, ItemInfo item, long container, 430 long screenId, int cellX, int cellY) { 431 if (item.container == ItemInfo.NO_ID) { 432 // From all apps 433 addItemToDatabase(context, item, container, screenId, cellX, cellY, false); 434 } else { 435 // From somewhere else 436 moveItemInDatabase(context, item, container, screenId, cellX, cellY); 437 } 438 } 439 440 static void checkItemInfoLocked( 441 final long itemId, final ItemInfo item, StackTraceElement[] stackTrace) { 442 ItemInfo modelItem = sBgItemsIdMap.get(itemId); 443 if (modelItem != null && item != modelItem) { 444 // check all the data is consistent 445 if (modelItem instanceof ShortcutInfo && item instanceof ShortcutInfo) { 446 ShortcutInfo modelShortcut = (ShortcutInfo) modelItem; 447 ShortcutInfo shortcut = (ShortcutInfo) item; 448 if (modelShortcut.title.toString().equals(shortcut.title.toString()) && 449 modelShortcut.intent.filterEquals(shortcut.intent) && 450 modelShortcut.id == shortcut.id && 451 modelShortcut.itemType == shortcut.itemType && 452 modelShortcut.container == shortcut.container && 453 modelShortcut.screenId == shortcut.screenId && 454 modelShortcut.cellX == shortcut.cellX && 455 modelShortcut.cellY == shortcut.cellY && 456 modelShortcut.spanX == shortcut.spanX && 457 modelShortcut.spanY == shortcut.spanY && 458 ((modelShortcut.dropPos == null && shortcut.dropPos == null) || 459 (modelShortcut.dropPos != null && 460 shortcut.dropPos != null && 461 modelShortcut.dropPos[0] == shortcut.dropPos[0] && 462 modelShortcut.dropPos[1] == shortcut.dropPos[1]))) { 463 // For all intents and purposes, this is the same object 464 return; 465 } 466 } 467 468 // the modelItem needs to match up perfectly with item if our model is 469 // to be consistent with the database-- for now, just require 470 // modelItem == item or the equality check above 471 String msg = "item: " + ((item != null) ? item.toString() : "null") + 472 "modelItem: " + 473 ((modelItem != null) ? modelItem.toString() : "null") + 474 "Error: ItemInfo passed to checkItemInfo doesn't match original"; 475 RuntimeException e = new RuntimeException(msg); 476 if (stackTrace != null) { 477 e.setStackTrace(stackTrace); 478 } 479 // TODO: something breaks this in the upgrade path 480 //throw e; 481 } 482 } 483 484 static void checkItemInfo(final ItemInfo item) { 485 final StackTraceElement[] stackTrace = new Throwable().getStackTrace(); 486 final long itemId = item.id; 487 Runnable r = new Runnable() { 488 public void run() { 489 synchronized (sBgLock) { 490 checkItemInfoLocked(itemId, item, stackTrace); 491 } 492 } 493 }; 494 runOnWorkerThread(r); 495 } 496 497 static void updateItemInDatabaseHelper(Context context, final ContentValues values, 498 final ItemInfo item, final String callingFunction) { 499 final long itemId = item.id; 500 final Uri uri = LauncherSettings.Favorites.getContentUri(itemId, false); 501 final ContentResolver cr = context.getContentResolver(); 502 503 final StackTraceElement[] stackTrace = new Throwable().getStackTrace(); 504 Runnable r = new Runnable() { 505 public void run() { 506 cr.update(uri, values, null, null); 507 updateItemArrays(item, itemId, stackTrace); 508 } 509 }; 510 runOnWorkerThread(r); 511 } 512 513 static void updateItemsInDatabaseHelper(Context context, final ArrayList<ContentValues> valuesList, 514 final ArrayList<ItemInfo> items, final String callingFunction) { 515 final ContentResolver cr = context.getContentResolver(); 516 517 final StackTraceElement[] stackTrace = new Throwable().getStackTrace(); 518 Runnable r = new Runnable() { 519 public void run() { 520 ArrayList<ContentProviderOperation> ops = 521 new ArrayList<ContentProviderOperation>(); 522 int count = items.size(); 523 for (int i = 0; i < count; i++) { 524 ItemInfo item = items.get(i); 525 final long itemId = item.id; 526 final Uri uri = LauncherSettings.Favorites.getContentUri(itemId, false); 527 ContentValues values = valuesList.get(i); 528 529 ops.add(ContentProviderOperation.newUpdate(uri).withValues(values).build()); 530 updateItemArrays(item, itemId, stackTrace); 531 532 } 533 try { 534 cr.applyBatch(LauncherProvider.AUTHORITY, ops); 535 } catch (Exception e) { 536 e.printStackTrace(); 537 } 538 } 539 }; 540 runOnWorkerThread(r); 541 } 542 543 static void updateItemArrays(ItemInfo item, long itemId, StackTraceElement[] stackTrace) { 544 // Lock on mBgLock *after* the db operation 545 synchronized (sBgLock) { 546 checkItemInfoLocked(itemId, item, stackTrace); 547 548 if (item.container != LauncherSettings.Favorites.CONTAINER_DESKTOP && 549 item.container != LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 550 // Item is in a folder, make sure this folder exists 551 if (!sBgFolders.containsKey(item.container)) { 552 // An items container is being set to a that of an item which is not in 553 // the list of Folders. 554 String msg = "item: " + item + " container being set to: " + 555 item.container + ", not in the list of folders"; 556 Log.e(TAG, msg); 557 Launcher.dumpDebugLogsToConsole(); 558 } 559 } 560 561 // Items are added/removed from the corresponding FolderInfo elsewhere, such 562 // as in Workspace.onDrop. Here, we just add/remove them from the list of items 563 // that are on the desktop, as appropriate 564 ItemInfo modelItem = sBgItemsIdMap.get(itemId); 565 if (modelItem.container == LauncherSettings.Favorites.CONTAINER_DESKTOP || 566 modelItem.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 567 switch (modelItem.itemType) { 568 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 569 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 570 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 571 if (!sBgWorkspaceItems.contains(modelItem)) { 572 sBgWorkspaceItems.add(modelItem); 573 } 574 break; 575 default: 576 break; 577 } 578 } else { 579 sBgWorkspaceItems.remove(modelItem); 580 } 581 } 582 } 583 584 public void flushWorkerThread() { 585 mFlushingWorkerThread = true; 586 Runnable waiter = new Runnable() { 587 public void run() { 588 synchronized (this) { 589 notifyAll(); 590 mFlushingWorkerThread = false; 591 } 592 } 593 }; 594 595 synchronized(waiter) { 596 runOnWorkerThread(waiter); 597 if (mLoaderTask != null) { 598 synchronized(mLoaderTask) { 599 mLoaderTask.notify(); 600 } 601 } 602 boolean success = false; 603 while (!success) { 604 try { 605 waiter.wait(); 606 success = true; 607 } catch (InterruptedException e) { 608 } 609 } 610 } 611 } 612 613 /** 614 * Move an item in the DB to a new <container, screen, cellX, cellY> 615 */ 616 static void moveItemInDatabase(Context context, final ItemInfo item, final long container, 617 final long screenId, final int cellX, final int cellY) { 618 String transaction = "DbDebug Modify item (" + item.title + ") in db, id: " + item.id + 619 " (" + item.container + ", " + item.screenId + ", " + item.cellX + ", " + item.cellY + 620 ") --> " + "(" + container + ", " + screenId + ", " + cellX + ", " + cellY + ")"; 621 Launcher.sDumpLogs.add(transaction); 622 Log.d(TAG, transaction); 623 item.container = container; 624 item.cellX = cellX; 625 item.cellY = cellY; 626 627 // We store hotseat items in canonical form which is this orientation invariant position 628 // in the hotseat 629 if (context instanceof Launcher && screenId < 0 && 630 container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 631 item.screenId = ((Launcher) context).getHotseat().getOrderInHotseat(cellX, cellY); 632 } else { 633 item.screenId = screenId; 634 } 635 636 final ContentValues values = new ContentValues(); 637 values.put(LauncherSettings.Favorites.CONTAINER, item.container); 638 values.put(LauncherSettings.Favorites.CELLX, item.cellX); 639 values.put(LauncherSettings.Favorites.CELLY, item.cellY); 640 values.put(LauncherSettings.Favorites.SCREEN, item.screenId); 641 642 updateItemInDatabaseHelper(context, values, item, "moveItemInDatabase"); 643 } 644 645 /** 646 * Move items in the DB to a new <container, screen, cellX, cellY>. We assume that the 647 * cellX, cellY have already been updated on the ItemInfos. 648 */ 649 static void moveItemsInDatabase(Context context, final ArrayList<ItemInfo> items, 650 final long container, final int screen) { 651 652 ArrayList<ContentValues> contentValues = new ArrayList<ContentValues>(); 653 int count = items.size(); 654 655 for (int i = 0; i < count; i++) { 656 ItemInfo item = items.get(i); 657 String transaction = "DbDebug Modify item (" + item.title + ") in db, id: " 658 + item.id + " (" + item.container + ", " + item.screenId + ", " + item.cellX 659 + ", " + item.cellY + ") --> " + "(" + container + ", " + screen + ", " 660 + item.cellX + ", " + item.cellY + ")"; 661 Launcher.sDumpLogs.add(transaction); 662 item.container = container; 663 664 // We store hotseat items in canonical form which is this orientation invariant position 665 // in the hotseat 666 if (context instanceof Launcher && screen < 0 && 667 container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 668 item.screenId = ((Launcher) context).getHotseat().getOrderInHotseat(item.cellX, 669 item.cellY); 670 } else { 671 item.screenId = screen; 672 } 673 674 final ContentValues values = new ContentValues(); 675 values.put(LauncherSettings.Favorites.CONTAINER, item.container); 676 values.put(LauncherSettings.Favorites.CELLX, item.cellX); 677 values.put(LauncherSettings.Favorites.CELLY, item.cellY); 678 values.put(LauncherSettings.Favorites.SCREEN, item.screenId); 679 680 contentValues.add(values); 681 } 682 updateItemsInDatabaseHelper(context, contentValues, items, "moveItemInDatabase"); 683 } 684 685 /** 686 * Move and/or resize item in the DB to a new <container, screen, cellX, cellY, spanX, spanY> 687 */ 688 static void modifyItemInDatabase(Context context, final ItemInfo item, final long container, 689 final long screenId, final int cellX, final int cellY, final int spanX, final int spanY) { 690 String transaction = "DbDebug Modify item (" + item.title + ") in db, id: " + item.id + 691 " (" + item.container + ", " + item.screenId + ", " + item.cellX + ", " + item.cellY + 692 ") --> " + "(" + container + ", " + screenId + ", " + cellX + ", " + cellY + ")"; 693 Launcher.sDumpLogs.add(transaction); 694 Log.d(TAG, transaction); 695 item.cellX = cellX; 696 item.cellY = cellY; 697 item.spanX = spanX; 698 item.spanY = spanY; 699 700 // We store hotseat items in canonical form which is this orientation invariant position 701 // in the hotseat 702 if (context instanceof Launcher && screenId < 0 && 703 container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 704 item.screenId = ((Launcher) context).getHotseat().getOrderInHotseat(cellX, cellY); 705 } else { 706 item.screenId = screenId; 707 } 708 709 final ContentValues values = new ContentValues(); 710 values.put(LauncherSettings.Favorites.CONTAINER, item.container); 711 values.put(LauncherSettings.Favorites.CELLX, item.cellX); 712 values.put(LauncherSettings.Favorites.CELLY, item.cellY); 713 values.put(LauncherSettings.Favorites.SPANX, item.spanX); 714 values.put(LauncherSettings.Favorites.SPANY, item.spanY); 715 values.put(LauncherSettings.Favorites.SCREEN, item.screenId); 716 717 updateItemInDatabaseHelper(context, values, item, "modifyItemInDatabase"); 718 } 719 720 /** 721 * Update an item to the database in a specified container. 722 */ 723 static void updateItemInDatabase(Context context, final ItemInfo item) { 724 final ContentValues values = new ContentValues(); 725 item.onAddToDatabase(values); 726 item.updateValuesWithCoordinates(values, item.cellX, item.cellY); 727 updateItemInDatabaseHelper(context, values, item, "updateItemInDatabase"); 728 } 729 730 /** 731 * Returns true if the shortcuts already exists in the database. 732 * we identify a shortcut by its title and intent. 733 */ 734 static boolean shortcutExists(Context context, String title, Intent intent) { 735 final ContentResolver cr = context.getContentResolver(); 736 Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI, 737 new String[] { "title", "intent" }, "title=? and intent=?", 738 new String[] { title, intent.toUri(0) }, null); 739 boolean result = false; 740 try { 741 result = c.moveToFirst(); 742 } finally { 743 c.close(); 744 } 745 return result; 746 } 747 748 /** 749 * Returns an ItemInfo array containing all the items in the LauncherModel. 750 * The ItemInfo.id is not set through this function. 751 */ 752 static ArrayList<ItemInfo> getItemsInLocalCoordinates(Context context) { 753 ArrayList<ItemInfo> items = new ArrayList<ItemInfo>(); 754 final ContentResolver cr = context.getContentResolver(); 755 Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI, new String[] { 756 LauncherSettings.Favorites.ITEM_TYPE, LauncherSettings.Favorites.CONTAINER, 757 LauncherSettings.Favorites.SCREEN, LauncherSettings.Favorites.CELLX, LauncherSettings.Favorites.CELLY, 758 LauncherSettings.Favorites.SPANX, LauncherSettings.Favorites.SPANY }, null, null, null); 759 760 final int itemTypeIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.ITEM_TYPE); 761 final int containerIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CONTAINER); 762 final int screenIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SCREEN); 763 final int cellXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLX); 764 final int cellYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLY); 765 final int spanXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SPANX); 766 final int spanYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SPANY); 767 768 try { 769 while (c.moveToNext()) { 770 ItemInfo item = new ItemInfo(); 771 item.cellX = c.getInt(cellXIndex); 772 item.cellY = c.getInt(cellYIndex); 773 item.spanX = c.getInt(spanXIndex); 774 item.spanY = c.getInt(spanYIndex); 775 item.container = c.getInt(containerIndex); 776 item.itemType = c.getInt(itemTypeIndex); 777 item.screenId = c.getInt(screenIndex); 778 779 items.add(item); 780 } 781 } catch (Exception e) { 782 items.clear(); 783 } finally { 784 c.close(); 785 } 786 787 return items; 788 } 789 790 /** 791 * Find a folder in the db, creating the FolderInfo if necessary, and adding it to folderList. 792 */ 793 FolderInfo getFolderById(Context context, HashMap<Long,FolderInfo> folderList, long id) { 794 final ContentResolver cr = context.getContentResolver(); 795 Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI, null, 796 "_id=? and (itemType=? or itemType=?)", 797 new String[] { String.valueOf(id), 798 String.valueOf(LauncherSettings.Favorites.ITEM_TYPE_FOLDER)}, null); 799 800 try { 801 if (c.moveToFirst()) { 802 final int itemTypeIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.ITEM_TYPE); 803 final int titleIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.TITLE); 804 final int containerIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CONTAINER); 805 final int screenIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SCREEN); 806 final int cellXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLX); 807 final int cellYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLY); 808 809 FolderInfo folderInfo = null; 810 switch (c.getInt(itemTypeIndex)) { 811 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 812 folderInfo = findOrMakeFolder(folderList, id); 813 break; 814 } 815 816 folderInfo.title = c.getString(titleIndex); 817 folderInfo.id = id; 818 folderInfo.container = c.getInt(containerIndex); 819 folderInfo.screenId = c.getInt(screenIndex); 820 folderInfo.cellX = c.getInt(cellXIndex); 821 folderInfo.cellY = c.getInt(cellYIndex); 822 823 return folderInfo; 824 } 825 } finally { 826 c.close(); 827 } 828 829 return null; 830 } 831 832 /** 833 * Add an item to the database in a specified container. Sets the container, screen, cellX and 834 * cellY fields of the item. Also assigns an ID to the item. 835 */ 836 static void addItemToDatabase(Context context, final ItemInfo item, final long container, 837 final long screenId, final int cellX, final int cellY, final boolean notify) { 838 item.container = container; 839 item.cellX = cellX; 840 item.cellY = cellY; 841 // We store hotseat items in canonical form which is this orientation invariant position 842 // in the hotseat 843 if (context instanceof Launcher && screenId < 0 && 844 container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 845 item.screenId = ((Launcher) context).getHotseat().getOrderInHotseat(cellX, cellY); 846 } else { 847 item.screenId = screenId; 848 } 849 850 final ContentValues values = new ContentValues(); 851 final ContentResolver cr = context.getContentResolver(); 852 item.onAddToDatabase(values); 853 854 LauncherAppState app = LauncherAppState.getInstance(); 855 item.id = app.getLauncherProvider().generateNewItemId(); 856 values.put(LauncherSettings.Favorites._ID, item.id); 857 item.updateValuesWithCoordinates(values, item.cellX, item.cellY); 858 859 Runnable r = new Runnable() { 860 public void run() { 861 String transaction = "DbDebug Add item (" + item.title + ") to db, id: " 862 + item.id + " (" + container + ", " + screenId + ", " + cellX + ", " 863 + cellY + ")"; 864 Launcher.sDumpLogs.add(transaction); 865 Log.d(TAG, transaction); 866 867 cr.insert(notify ? LauncherSettings.Favorites.CONTENT_URI : 868 LauncherSettings.Favorites.CONTENT_URI_NO_NOTIFICATION, values); 869 870 // Lock on mBgLock *after* the db operation 871 synchronized (sBgLock) { 872 checkItemInfoLocked(item.id, item, null); 873 sBgItemsIdMap.put(item.id, item); 874 switch (item.itemType) { 875 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 876 sBgFolders.put(item.id, (FolderInfo) item); 877 // Fall through 878 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 879 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 880 if (item.container == LauncherSettings.Favorites.CONTAINER_DESKTOP || 881 item.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 882 sBgWorkspaceItems.add(item); 883 } else { 884 if (!sBgFolders.containsKey(item.container)) { 885 // Adding an item to a folder that doesn't exist. 886 String msg = "adding item: " + item + " to a folder that " + 887 " doesn't exist"; 888 Log.e(TAG, msg); 889 Launcher.dumpDebugLogsToConsole(); 890 } 891 } 892 break; 893 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 894 sBgAppWidgets.add((LauncherAppWidgetInfo) item); 895 break; 896 } 897 } 898 } 899 }; 900 runOnWorkerThread(r); 901 } 902 903 /** 904 * Creates a new unique child id, for a given cell span across all layouts. 905 */ 906 static int getCellLayoutChildId( 907 long container, long screen, int localCellX, int localCellY, int spanX, int spanY) { 908 return (((int) container & 0xFF) << 24) 909 | ((int) screen & 0xFF) << 16 | (localCellX & 0xFF) << 8 | (localCellY & 0xFF); 910 } 911 912 static int getCellCountX() { 913 return mCellCountX; 914 } 915 916 static int getCellCountY() { 917 return mCellCountY; 918 } 919 920 /** 921 * Updates the model orientation helper to take into account the current layout dimensions 922 * when performing local/canonical coordinate transformations. 923 */ 924 static void updateWorkspaceLayoutCells(int shortAxisCellCount, int longAxisCellCount) { 925 mCellCountX = shortAxisCellCount; 926 mCellCountY = longAxisCellCount; 927 } 928 929 /** 930 * Removes the specified item from the database 931 * @param context 932 * @param item 933 */ 934 static void deleteItemFromDatabase(Context context, final ItemInfo item) { 935 final ContentResolver cr = context.getContentResolver(); 936 final Uri uriToDelete = LauncherSettings.Favorites.getContentUri(item.id, false); 937 938 Runnable r = new Runnable() { 939 public void run() { 940 String transaction = "DbDebug Delete item (" + item.title + ") from db, id: " 941 + item.id + " (" + item.container + ", " + item.screenId + ", " + item.cellX + 942 ", " + item.cellY + ")"; 943 Launcher.sDumpLogs.add(transaction); 944 Log.d(TAG, transaction); 945 946 cr.delete(uriToDelete, null, null); 947 948 // Lock on mBgLock *after* the db operation 949 synchronized (sBgLock) { 950 switch (item.itemType) { 951 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 952 sBgFolders.remove(item.id); 953 for (ItemInfo info: sBgItemsIdMap.values()) { 954 if (info.container == item.id) { 955 // We are deleting a folder which still contains items that 956 // think they are contained by that folder. 957 String msg = "deleting a folder (" + item + ") which still " + 958 "contains items (" + info + ")"; 959 Log.e(TAG, msg); 960 Launcher.dumpDebugLogsToConsole(); 961 } 962 } 963 sBgWorkspaceItems.remove(item); 964 break; 965 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 966 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 967 sBgWorkspaceItems.remove(item); 968 break; 969 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 970 sBgAppWidgets.remove((LauncherAppWidgetInfo) item); 971 break; 972 } 973 sBgItemsIdMap.remove(item.id); 974 sBgDbIconCache.remove(item); 975 } 976 } 977 }; 978 runOnWorkerThread(r); 979 } 980 981 /** 982 * Update the order of the workspace screens in the database. The array list contains 983 * a list of screen ids in the order that they should appear. 984 */ 985 void updateWorkspaceScreenOrder(Context context, final ArrayList<Long> screens) { 986 final ArrayList<Long> screensCopy = new ArrayList<Long>(screens); 987 final ContentResolver cr = context.getContentResolver(); 988 final Uri uri = LauncherSettings.WorkspaceScreens.CONTENT_URI; 989 990 // Remove any negative screen ids -- these aren't persisted 991 Iterator<Long> iter = screensCopy.iterator(); 992 while (iter.hasNext()) { 993 long id = iter.next(); 994 if (id < 0) { 995 iter.remove(); 996 } 997 } 998 999 Runnable r = new Runnable() { 1000 @Override 1001 public void run() { 1002 // Clear the table 1003 cr.delete(uri, null, null); 1004 int count = screens.size(); 1005 ContentValues[] values = new ContentValues[count]; 1006 for (int i = 0; i < count; i++) { 1007 ContentValues v = new ContentValues(); 1008 long screenId = screens.get(i); 1009 v.put(LauncherSettings.WorkspaceScreens._ID, screenId); 1010 v.put(LauncherSettings.WorkspaceScreens.SCREEN_RANK, i); 1011 values[i] = v; 1012 } 1013 cr.bulkInsert(uri, values); 1014 sBgWorkspaceScreens.clear(); 1015 sBgWorkspaceScreens.addAll(screensCopy); 1016 } 1017 }; 1018 runOnWorkerThread(r); 1019 } 1020 1021 /** 1022 * Remove the contents of the specified folder from the database 1023 */ 1024 static void deleteFolderContentsFromDatabase(Context context, final FolderInfo info) { 1025 final ContentResolver cr = context.getContentResolver(); 1026 1027 Runnable r = new Runnable() { 1028 public void run() { 1029 cr.delete(LauncherSettings.Favorites.getContentUri(info.id, false), null, null); 1030 // Lock on mBgLock *after* the db operation 1031 synchronized (sBgLock) { 1032 sBgItemsIdMap.remove(info.id); 1033 sBgFolders.remove(info.id); 1034 sBgDbIconCache.remove(info); 1035 sBgWorkspaceItems.remove(info); 1036 } 1037 1038 cr.delete(LauncherSettings.Favorites.CONTENT_URI_NO_NOTIFICATION, 1039 LauncherSettings.Favorites.CONTAINER + "=" + info.id, null); 1040 // Lock on mBgLock *after* the db operation 1041 synchronized (sBgLock) { 1042 for (ItemInfo childInfo : info.contents) { 1043 sBgItemsIdMap.remove(childInfo.id); 1044 sBgDbIconCache.remove(childInfo); 1045 } 1046 } 1047 } 1048 }; 1049 runOnWorkerThread(r); 1050 } 1051 1052 /** 1053 * Set this as the current Launcher activity object for the loader. 1054 */ 1055 public void initialize(Callbacks callbacks) { 1056 synchronized (mLock) { 1057 mCallbacks = new WeakReference<Callbacks>(callbacks); 1058 } 1059 } 1060 1061 /** 1062 * Call from the handler for ACTION_PACKAGE_ADDED, ACTION_PACKAGE_REMOVED and 1063 * ACTION_PACKAGE_CHANGED. 1064 */ 1065 @Override 1066 public void onReceive(Context context, Intent intent) { 1067 if (DEBUG_LOADERS) Log.d(TAG, "onReceive intent=" + intent); 1068 1069 final String action = intent.getAction(); 1070 1071 if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 1072 || Intent.ACTION_PACKAGE_REMOVED.equals(action) 1073 || Intent.ACTION_PACKAGE_ADDED.equals(action)) { 1074 final String packageName = intent.getData().getSchemeSpecificPart(); 1075 final boolean replacing = intent.getBooleanExtra(Intent.EXTRA_REPLACING, false); 1076 1077 int op = PackageUpdatedTask.OP_NONE; 1078 1079 if (packageName == null || packageName.length() == 0) { 1080 // they sent us a bad intent 1081 return; 1082 } 1083 1084 if (Intent.ACTION_PACKAGE_CHANGED.equals(action)) { 1085 op = PackageUpdatedTask.OP_UPDATE; 1086 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action)) { 1087 if (!replacing) { 1088 op = PackageUpdatedTask.OP_REMOVE; 1089 } 1090 // else, we are replacing the package, so a PACKAGE_ADDED will be sent 1091 // later, we will update the package at this time 1092 } else if (Intent.ACTION_PACKAGE_ADDED.equals(action)) { 1093 if (!replacing) { 1094 op = PackageUpdatedTask.OP_ADD; 1095 } else { 1096 op = PackageUpdatedTask.OP_UPDATE; 1097 } 1098 } 1099 1100 if (op != PackageUpdatedTask.OP_NONE) { 1101 enqueuePackageUpdated(new PackageUpdatedTask(op, new String[] { packageName })); 1102 } 1103 1104 } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE.equals(action)) { 1105 // First, schedule to add these apps back in. 1106 String[] packages = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST); 1107 enqueuePackageUpdated(new PackageUpdatedTask(PackageUpdatedTask.OP_ADD, packages)); 1108 // Then, rebind everything. 1109 startLoaderFromBackground(); 1110 } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 1111 String[] packages = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST); 1112 enqueuePackageUpdated(new PackageUpdatedTask( 1113 PackageUpdatedTask.OP_UNAVAILABLE, packages)); 1114 } else if (Intent.ACTION_LOCALE_CHANGED.equals(action)) { 1115 // If we have changed locale we need to clear out the labels in all apps/workspace. 1116 forceReload(); 1117 } else if (Intent.ACTION_CONFIGURATION_CHANGED.equals(action)) { 1118 // Check if configuration change was an mcc/mnc change which would affect app resources 1119 // and we would need to clear out the labels in all apps/workspace. Same handling as 1120 // above for ACTION_LOCALE_CHANGED 1121 Configuration currentConfig = context.getResources().getConfiguration(); 1122 if (mPreviousConfigMcc != currentConfig.mcc) { 1123 Log.d(TAG, "Reload apps on config change. curr_mcc:" 1124 + currentConfig.mcc + " prevmcc:" + mPreviousConfigMcc); 1125 forceReload(); 1126 } 1127 // Update previousConfig 1128 mPreviousConfigMcc = currentConfig.mcc; 1129 } else if (SearchManager.INTENT_GLOBAL_SEARCH_ACTIVITY_CHANGED.equals(action) || 1130 SearchManager.INTENT_ACTION_SEARCHABLES_CHANGED.equals(action)) { 1131 if (mCallbacks != null) { 1132 Callbacks callbacks = mCallbacks.get(); 1133 if (callbacks != null) { 1134 callbacks.bindSearchablesChanged(); 1135 } 1136 } 1137 } 1138 } 1139 1140 private void forceReload() { 1141 resetLoadedState(true, true); 1142 1143 // Do this here because if the launcher activity is running it will be restarted. 1144 // If it's not running startLoaderFromBackground will merely tell it that it needs 1145 // to reload. 1146 startLoaderFromBackground(); 1147 } 1148 1149 public void resetLoadedState(boolean resetAllAppsLoaded, boolean resetWorkspaceLoaded) { 1150 synchronized (mLock) { 1151 // Stop any existing loaders first, so they don't set mAllAppsLoaded or 1152 // mWorkspaceLoaded to true later 1153 stopLoaderLocked(); 1154 if (resetAllAppsLoaded) mAllAppsLoaded = false; 1155 if (resetWorkspaceLoaded) mWorkspaceLoaded = false; 1156 } 1157 } 1158 1159 /** 1160 * When the launcher is in the background, it's possible for it to miss paired 1161 * configuration changes. So whenever we trigger the loader from the background 1162 * tell the launcher that it needs to re-run the loader when it comes back instead 1163 * of doing it now. 1164 */ 1165 public void startLoaderFromBackground() { 1166 boolean runLoader = false; 1167 if (mCallbacks != null) { 1168 Callbacks callbacks = mCallbacks.get(); 1169 if (callbacks != null) { 1170 // Only actually run the loader if they're not paused. 1171 if (!callbacks.setLoadOnResume()) { 1172 runLoader = true; 1173 } 1174 } 1175 } 1176 if (runLoader) { 1177 startLoader(false, -1); 1178 } 1179 } 1180 1181 // If there is already a loader task running, tell it to stop. 1182 // returns true if isLaunching() was true on the old task 1183 private boolean stopLoaderLocked() { 1184 boolean isLaunching = false; 1185 LoaderTask oldTask = mLoaderTask; 1186 if (oldTask != null) { 1187 if (oldTask.isLaunching()) { 1188 isLaunching = true; 1189 } 1190 oldTask.stopLocked(); 1191 } 1192 return isLaunching; 1193 } 1194 1195 public void startLoader(boolean isLaunching, int synchronousBindPage) { 1196 synchronized (mLock) { 1197 if (DEBUG_LOADERS) { 1198 Log.d(TAG, "startLoader isLaunching=" + isLaunching); 1199 } 1200 1201 // Clear any deferred bind-runnables from the synchronized load process 1202 // We must do this before any loading/binding is scheduled below. 1203 mDeferredBindRunnables.clear(); 1204 1205 // Don't bother to start the thread if we know it's not going to do anything 1206 if (mCallbacks != null && mCallbacks.get() != null) { 1207 // If there is already one running, tell it to stop. 1208 // also, don't downgrade isLaunching if we're already running 1209 isLaunching = isLaunching || stopLoaderLocked(); 1210 mLoaderTask = new LoaderTask(mApp.getContext(), isLaunching); 1211 if (synchronousBindPage > -1 && mAllAppsLoaded && mWorkspaceLoaded) { 1212 mLoaderTask.runBindSynchronousPage(synchronousBindPage); 1213 } else { 1214 sWorkerThread.setPriority(Thread.NORM_PRIORITY); 1215 sWorker.post(mLoaderTask); 1216 } 1217 } 1218 } 1219 } 1220 1221 void bindRemainingSynchronousPages() { 1222 // Post the remaining side pages to be loaded 1223 if (!mDeferredBindRunnables.isEmpty()) { 1224 for (final Runnable r : mDeferredBindRunnables) { 1225 mHandler.post(r, MAIN_THREAD_BINDING_RUNNABLE); 1226 } 1227 mDeferredBindRunnables.clear(); 1228 } 1229 } 1230 1231 public void stopLoader() { 1232 synchronized (mLock) { 1233 if (mLoaderTask != null) { 1234 mLoaderTask.stopLocked(); 1235 } 1236 } 1237 } 1238 1239 public boolean isAllAppsLoaded() { 1240 return mAllAppsLoaded; 1241 } 1242 1243 boolean isLoadingWorkspace() { 1244 synchronized (mLock) { 1245 if (mLoaderTask != null) { 1246 return mLoaderTask.isLoadingWorkspace(); 1247 } 1248 } 1249 return false; 1250 } 1251 1252 /** 1253 * Runnable for the thread that loads the contents of the launcher: 1254 * - workspace icons 1255 * - widgets 1256 * - all apps icons 1257 */ 1258 private class LoaderTask implements Runnable { 1259 private Context mContext; 1260 private boolean mIsLaunching; 1261 private boolean mIsLoadingAndBindingWorkspace; 1262 private boolean mStopped; 1263 private boolean mLoadAndBindStepFinished; 1264 1265 private HashMap<Object, CharSequence> mLabelCache; 1266 1267 LoaderTask(Context context, boolean isLaunching) { 1268 mContext = context; 1269 mIsLaunching = isLaunching; 1270 mLabelCache = new HashMap<Object, CharSequence>(); 1271 } 1272 1273 boolean isLaunching() { 1274 return mIsLaunching; 1275 } 1276 1277 boolean isLoadingWorkspace() { 1278 return mIsLoadingAndBindingWorkspace; 1279 } 1280 1281 /** Returns whether this is an upgrade path */ 1282 private boolean loadAndBindWorkspace() { 1283 mIsLoadingAndBindingWorkspace = true; 1284 1285 // Load the workspace 1286 if (DEBUG_LOADERS) { 1287 Log.d(TAG, "loadAndBindWorkspace mWorkspaceLoaded=" + mWorkspaceLoaded); 1288 } 1289 1290 boolean isUpgradePath = false; 1291 if (!mWorkspaceLoaded) { 1292 isUpgradePath = loadWorkspace(); 1293 synchronized (LoaderTask.this) { 1294 if (mStopped) { 1295 return isUpgradePath; 1296 } 1297 mWorkspaceLoaded = true; 1298 } 1299 } 1300 1301 // Bind the workspace 1302 bindWorkspace(-1, isUpgradePath); 1303 return isUpgradePath; 1304 } 1305 1306 private void waitForIdle() { 1307 // Wait until the either we're stopped or the other threads are done. 1308 // This way we don't start loading all apps until the workspace has settled 1309 // down. 1310 synchronized (LoaderTask.this) { 1311 final long workspaceWaitTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 1312 1313 mHandler.postIdle(new Runnable() { 1314 public void run() { 1315 synchronized (LoaderTask.this) { 1316 mLoadAndBindStepFinished = true; 1317 if (DEBUG_LOADERS) { 1318 Log.d(TAG, "done with previous binding step"); 1319 } 1320 LoaderTask.this.notify(); 1321 } 1322 } 1323 }); 1324 1325 while (!mStopped && !mLoadAndBindStepFinished && !mFlushingWorkerThread) { 1326 try { 1327 // Just in case mFlushingWorkerThread changes but we aren't woken up, 1328 // wait no longer than 1sec at a time 1329 this.wait(1000); 1330 } catch (InterruptedException ex) { 1331 // Ignore 1332 } 1333 } 1334 if (DEBUG_LOADERS) { 1335 Log.d(TAG, "waited " 1336 + (SystemClock.uptimeMillis()-workspaceWaitTime) 1337 + "ms for previous step to finish binding"); 1338 } 1339 } 1340 } 1341 1342 void runBindSynchronousPage(int synchronousBindPage) { 1343 if (synchronousBindPage < 0) { 1344 // Ensure that we have a valid page index to load synchronously 1345 throw new RuntimeException("Should not call runBindSynchronousPage() without " + 1346 "valid page index"); 1347 } 1348 if (!mAllAppsLoaded || !mWorkspaceLoaded) { 1349 // Ensure that we don't try and bind a specified page when the pages have not been 1350 // loaded already (we should load everything asynchronously in that case) 1351 throw new RuntimeException("Expecting AllApps and Workspace to be loaded"); 1352 } 1353 synchronized (mLock) { 1354 if (mIsLoaderTaskRunning) { 1355 // Ensure that we are never running the background loading at this point since 1356 // we also touch the background collections 1357 throw new RuntimeException("Error! Background loading is already running"); 1358 } 1359 } 1360 1361 // XXX: Throw an exception if we are already loading (since we touch the worker thread 1362 // data structures, we can't allow any other thread to touch that data, but because 1363 // this call is synchronous, we can get away with not locking). 1364 1365 // The LauncherModel is static in the LauncherAppState and mHandler may have queued 1366 // operations from the previous activity. We need to ensure that all queued operations 1367 // are executed before any synchronous binding work is done. 1368 mHandler.flush(); 1369 1370 // Divide the set of loaded items into those that we are binding synchronously, and 1371 // everything else that is to be bound normally (asynchronously). 1372 bindWorkspace(synchronousBindPage, false); 1373 // XXX: For now, continue posting the binding of AllApps as there are other issues that 1374 // arise from that. 1375 onlyBindAllApps(); 1376 } 1377 1378 public void run() { 1379 boolean isUpgrade = false; 1380 1381 synchronized (mLock) { 1382 mIsLoaderTaskRunning = true; 1383 } 1384 // Optimize for end-user experience: if the Launcher is up and // running with the 1385 // All Apps interface in the foreground, load All Apps first. Otherwise, load the 1386 // workspace first (default). 1387 final Callbacks cbk = mCallbacks.get(); 1388 keep_running: { 1389 // Elevate priority when Home launches for the first time to avoid 1390 // starving at boot time. Staring at a blank home is not cool. 1391 synchronized (mLock) { 1392 if (DEBUG_LOADERS) Log.d(TAG, "Setting thread priority to " + 1393 (mIsLaunching ? "DEFAULT" : "BACKGROUND")); 1394 android.os.Process.setThreadPriority(mIsLaunching 1395 ? Process.THREAD_PRIORITY_DEFAULT : Process.THREAD_PRIORITY_BACKGROUND); 1396 } 1397 if (DEBUG_LOADERS) Log.d(TAG, "step 1: loading workspace"); 1398 isUpgrade = loadAndBindWorkspace(); 1399 1400 if (mStopped) { 1401 break keep_running; 1402 } 1403 1404 // Whew! Hard work done. Slow us down, and wait until the UI thread has 1405 // settled down. 1406 synchronized (mLock) { 1407 if (mIsLaunching) { 1408 if (DEBUG_LOADERS) Log.d(TAG, "Setting thread priority to BACKGROUND"); 1409 android.os.Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 1410 } 1411 } 1412 waitForIdle(); 1413 1414 // second step 1415 if (DEBUG_LOADERS) Log.d(TAG, "step 2: loading all apps"); 1416 loadAndBindAllApps(); 1417 1418 // Restore the default thread priority after we are done loading items 1419 synchronized (mLock) { 1420 android.os.Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT); 1421 } 1422 } 1423 1424 // Update the saved icons if necessary 1425 if (DEBUG_LOADERS) Log.d(TAG, "Comparing loaded icons to database icons"); 1426 synchronized (sBgLock) { 1427 for (Object key : sBgDbIconCache.keySet()) { 1428 updateSavedIcon(mContext, (ShortcutInfo) key, sBgDbIconCache.get(key)); 1429 } 1430 sBgDbIconCache.clear(); 1431 } 1432 1433 // Ensure that all the applications that are in the system are represented on the home 1434 // screen. 1435 if (!isUpgrade) { 1436 verifyApplications(); 1437 } 1438 1439 // Clear out this reference, otherwise we end up holding it until all of the 1440 // callback runnables are done. 1441 mContext = null; 1442 1443 synchronized (mLock) { 1444 // If we are still the last one to be scheduled, remove ourselves. 1445 if (mLoaderTask == this) { 1446 mLoaderTask = null; 1447 } 1448 mIsLoaderTaskRunning = false; 1449 } 1450 } 1451 1452 public void stopLocked() { 1453 synchronized (LoaderTask.this) { 1454 mStopped = true; 1455 this.notify(); 1456 } 1457 } 1458 1459 /** 1460 * Gets the callbacks object. If we've been stopped, or if the launcher object 1461 * has somehow been garbage collected, return null instead. Pass in the Callbacks 1462 * object that was around when the deferred message was scheduled, and if there's 1463 * a new Callbacks object around then also return null. This will save us from 1464 * calling onto it with data that will be ignored. 1465 */ 1466 Callbacks tryGetCallbacks(Callbacks oldCallbacks) { 1467 synchronized (mLock) { 1468 if (mStopped) { 1469 return null; 1470 } 1471 1472 if (mCallbacks == null) { 1473 return null; 1474 } 1475 1476 final Callbacks callbacks = mCallbacks.get(); 1477 if (callbacks != oldCallbacks) { 1478 return null; 1479 } 1480 if (callbacks == null) { 1481 Log.w(TAG, "no mCallbacks"); 1482 return null; 1483 } 1484 1485 return callbacks; 1486 } 1487 } 1488 1489 private void verifyApplications() { 1490 final Context context = mApp.getContext(); 1491 1492 // Cross reference all the applications in our apps list with items in the workspace 1493 ArrayList<ItemInfo> tmpInfos; 1494 ArrayList<ApplicationInfo> added = new ArrayList<ApplicationInfo>(); 1495 synchronized (sBgLock) { 1496 for (ApplicationInfo app : mBgAllAppsList.data) { 1497 tmpInfos = getItemInfoForComponentName(app.componentName); 1498 if (tmpInfos.isEmpty()) { 1499 // We are missing an application icon, so add this to the workspace 1500 added.add(app); 1501 // This is a rare event, so lets log it 1502 Log.e(TAG, "Missing Application on load: " + app); 1503 } 1504 } 1505 } 1506 if (!added.isEmpty()) { 1507 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 1508 addAndBindAddedApps(context, added, cb); 1509 } 1510 } 1511 1512 // check & update map of what's occupied; used to discard overlapping/invalid items 1513 private boolean checkItemPlacement(HashMap<Long, ItemInfo[][]> occupied, ItemInfo item) { 1514 long containerIndex = item.screenId; 1515 if (item.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 1516 if (occupied.containsKey(LauncherSettings.Favorites.CONTAINER_HOTSEAT)) { 1517 if (occupied.get(LauncherSettings.Favorites.CONTAINER_HOTSEAT) 1518 [(int) item.screenId][0] != null) { 1519 Log.e(TAG, "Error loading shortcut into hotseat " + item 1520 + " into position (" + item.screenId + ":" + item.cellX + "," 1521 + item.cellY + ") occupied by " 1522 + occupied.get(LauncherSettings.Favorites.CONTAINER_HOTSEAT) 1523 [(int) item.screenId][0]); 1524 return false; 1525 } 1526 } else { 1527 ItemInfo[][] items = new ItemInfo[mCellCountX + 1][mCellCountY + 1]; 1528 items[(int) item.screenId][0] = item; 1529 occupied.put((long) LauncherSettings.Favorites.CONTAINER_HOTSEAT, items); 1530 return true; 1531 } 1532 } else if (item.container != LauncherSettings.Favorites.CONTAINER_DESKTOP) { 1533 // Skip further checking if it is not the hotseat or workspace container 1534 return true; 1535 } 1536 1537 if (!occupied.containsKey(item.screenId)) { 1538 ItemInfo[][] items = new ItemInfo[mCellCountX + 1][mCellCountY + 1]; 1539 occupied.put(item.screenId, items); 1540 } 1541 1542 ItemInfo[][] screens = occupied.get(item.screenId); 1543 // Check if any workspace icons overlap with each other 1544 for (int x = item.cellX; x < (item.cellX+item.spanX); x++) { 1545 for (int y = item.cellY; y < (item.cellY+item.spanY); y++) { 1546 if (screens[x][y] != null) { 1547 Log.e(TAG, "Error loading shortcut " + item 1548 + " into cell (" + containerIndex + "-" + item.screenId + ":" 1549 + x + "," + y 1550 + ") occupied by " 1551 + screens[x][y]); 1552 return false; 1553 } 1554 } 1555 } 1556 for (int x = item.cellX; x < (item.cellX+item.spanX); x++) { 1557 for (int y = item.cellY; y < (item.cellY+item.spanY); y++) { 1558 screens[x][y] = item; 1559 } 1560 } 1561 1562 return true; 1563 } 1564 1565 /** Returns whether this is an upgradge path */ 1566 private boolean loadWorkspace() { 1567 final long t = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 1568 1569 final Context context = mContext; 1570 final ContentResolver contentResolver = context.getContentResolver(); 1571 final PackageManager manager = context.getPackageManager(); 1572 final AppWidgetManager widgets = AppWidgetManager.getInstance(context); 1573 final boolean isSafeMode = manager.isSafeMode(); 1574 1575 // Make sure the default workspace is loaded, if needed 1576 mApp.getLauncherProvider().loadDefaultFavoritesIfNecessary(0); 1577 1578 // Check if we need to do any upgrade-path logic 1579 boolean loadedOldDb = mApp.getLauncherProvider().justLoadedOldDb(); 1580 1581 synchronized (sBgLock) { 1582 sBgWorkspaceItems.clear(); 1583 sBgAppWidgets.clear(); 1584 sBgFolders.clear(); 1585 sBgItemsIdMap.clear(); 1586 sBgDbIconCache.clear(); 1587 sBgWorkspaceScreens.clear(); 1588 1589 final ArrayList<Long> itemsToRemove = new ArrayList<Long>(); 1590 final Uri contentUri = LauncherSettings.Favorites.CONTENT_URI; 1591 final Cursor c = contentResolver.query(contentUri, null, null, null, null); 1592 1593 // +1 for the hotseat (it can be larger than the workspace) 1594 // Load workspace in reverse order to ensure that latest items are loaded first (and 1595 // before any earlier duplicates) 1596 final HashMap<Long, ItemInfo[][]> occupied = new HashMap<Long, ItemInfo[][]>(); 1597 1598 try { 1599 final int idIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites._ID); 1600 final int intentIndex = c.getColumnIndexOrThrow 1601 (LauncherSettings.Favorites.INTENT); 1602 final int titleIndex = c.getColumnIndexOrThrow 1603 (LauncherSettings.Favorites.TITLE); 1604 final int iconTypeIndex = c.getColumnIndexOrThrow( 1605 LauncherSettings.Favorites.ICON_TYPE); 1606 final int iconIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.ICON); 1607 final int iconPackageIndex = c.getColumnIndexOrThrow( 1608 LauncherSettings.Favorites.ICON_PACKAGE); 1609 final int iconResourceIndex = c.getColumnIndexOrThrow( 1610 LauncherSettings.Favorites.ICON_RESOURCE); 1611 final int containerIndex = c.getColumnIndexOrThrow( 1612 LauncherSettings.Favorites.CONTAINER); 1613 final int itemTypeIndex = c.getColumnIndexOrThrow( 1614 LauncherSettings.Favorites.ITEM_TYPE); 1615 final int appWidgetIdIndex = c.getColumnIndexOrThrow( 1616 LauncherSettings.Favorites.APPWIDGET_ID); 1617 final int screenIndex = c.getColumnIndexOrThrow( 1618 LauncherSettings.Favorites.SCREEN); 1619 final int cellXIndex = c.getColumnIndexOrThrow 1620 (LauncherSettings.Favorites.CELLX); 1621 final int cellYIndex = c.getColumnIndexOrThrow 1622 (LauncherSettings.Favorites.CELLY); 1623 final int spanXIndex = c.getColumnIndexOrThrow 1624 (LauncherSettings.Favorites.SPANX); 1625 final int spanYIndex = c.getColumnIndexOrThrow( 1626 LauncherSettings.Favorites.SPANY); 1627 //final int uriIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.URI); 1628 //final int displayModeIndex = c.getColumnIndexOrThrow( 1629 // LauncherSettings.Favorites.DISPLAY_MODE); 1630 1631 ShortcutInfo info; 1632 String intentDescription; 1633 LauncherAppWidgetInfo appWidgetInfo; 1634 int container; 1635 long id; 1636 Intent intent; 1637 1638 while (!mStopped && c.moveToNext()) { 1639 try { 1640 int itemType = c.getInt(itemTypeIndex); 1641 1642 switch (itemType) { 1643 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 1644 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 1645 intentDescription = c.getString(intentIndex); 1646 try { 1647 intent = Intent.parseUri(intentDescription, 0); 1648 } catch (URISyntaxException e) { 1649 continue; 1650 } 1651 1652 if (itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION) { 1653 info = getShortcutInfo(manager, intent, context, c, iconIndex, 1654 titleIndex, mLabelCache); 1655 } else { 1656 info = getShortcutInfo(c, context, iconTypeIndex, 1657 iconPackageIndex, iconResourceIndex, iconIndex, 1658 titleIndex); 1659 1660 // App shortcuts that used to be automatically added to Launcher 1661 // didn't always have the correct intent flags set, so do that 1662 // here 1663 if (intent.getAction() != null && 1664 intent.getCategories() != null && 1665 intent.getAction().equals(Intent.ACTION_MAIN) && 1666 intent.getCategories().contains(Intent.CATEGORY_LAUNCHER)) { 1667 intent.addFlags( 1668 Intent.FLAG_ACTIVITY_NEW_TASK | 1669 Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED); 1670 } 1671 } 1672 1673 if (info != null) { 1674 info.intent = intent; 1675 info.id = c.getLong(idIndex); 1676 container = c.getInt(containerIndex); 1677 info.container = container; 1678 info.screenId = c.getInt(screenIndex); 1679 info.cellX = c.getInt(cellXIndex); 1680 info.cellY = c.getInt(cellYIndex); 1681 // check & update map of what's occupied 1682 if (!checkItemPlacement(occupied, info)) { 1683 break; 1684 } 1685 1686 switch (container) { 1687 case LauncherSettings.Favorites.CONTAINER_DESKTOP: 1688 case LauncherSettings.Favorites.CONTAINER_HOTSEAT: 1689 sBgWorkspaceItems.add(info); 1690 break; 1691 default: 1692 // Item is in a user folder 1693 FolderInfo folderInfo = 1694 findOrMakeFolder(sBgFolders, container); 1695 folderInfo.add(info); 1696 break; 1697 } 1698 sBgItemsIdMap.put(info.id, info); 1699 1700 // now that we've loaded everthing re-save it with the 1701 // icon in case it disappears somehow. 1702 queueIconToBeChecked(sBgDbIconCache, info, c, iconIndex); 1703 } else { 1704 // Failed to load the shortcut, probably because the 1705 // activity manager couldn't resolve it (maybe the app 1706 // was uninstalled), or the db row was somehow screwed up. 1707 // Delete it. 1708 id = c.getLong(idIndex); 1709 Log.e(TAG, "Error loading shortcut " + id + ", removing it"); 1710 contentResolver.delete(LauncherSettings.Favorites.getContentUri( 1711 id, false), null, null); 1712 } 1713 break; 1714 1715 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 1716 id = c.getLong(idIndex); 1717 FolderInfo folderInfo = findOrMakeFolder(sBgFolders, id); 1718 1719 folderInfo.title = c.getString(titleIndex); 1720 folderInfo.id = id; 1721 container = c.getInt(containerIndex); 1722 folderInfo.container = container; 1723 folderInfo.screenId = c.getInt(screenIndex); 1724 folderInfo.cellX = c.getInt(cellXIndex); 1725 folderInfo.cellY = c.getInt(cellYIndex); 1726 1727 // check & update map of what's occupied 1728 if (!checkItemPlacement(occupied, folderInfo)) { 1729 break; 1730 } 1731 switch (container) { 1732 case LauncherSettings.Favorites.CONTAINER_DESKTOP: 1733 case LauncherSettings.Favorites.CONTAINER_HOTSEAT: 1734 sBgWorkspaceItems.add(folderInfo); 1735 break; 1736 } 1737 1738 sBgItemsIdMap.put(folderInfo.id, folderInfo); 1739 sBgFolders.put(folderInfo.id, folderInfo); 1740 break; 1741 1742 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 1743 // Read all Launcher-specific widget details 1744 int appWidgetId = c.getInt(appWidgetIdIndex); 1745 id = c.getLong(idIndex); 1746 1747 final AppWidgetProviderInfo provider = 1748 widgets.getAppWidgetInfo(appWidgetId); 1749 1750 if (!isSafeMode && (provider == null || provider.provider == null || 1751 provider.provider.getPackageName() == null)) { 1752 String log = "Deleting widget that isn't installed anymore: id=" 1753 + id + " appWidgetId=" + appWidgetId; 1754 Log.e(TAG, log); 1755 Launcher.sDumpLogs.add(log); 1756 itemsToRemove.add(id); 1757 } else { 1758 appWidgetInfo = new LauncherAppWidgetInfo(appWidgetId, 1759 provider.provider); 1760 appWidgetInfo.id = id; 1761 appWidgetInfo.screenId = c.getInt(screenIndex); 1762 appWidgetInfo.cellX = c.getInt(cellXIndex); 1763 appWidgetInfo.cellY = c.getInt(cellYIndex); 1764 appWidgetInfo.spanX = c.getInt(spanXIndex); 1765 appWidgetInfo.spanY = c.getInt(spanYIndex); 1766 int[] minSpan = Launcher.getMinSpanForWidget(context, provider); 1767 appWidgetInfo.minSpanX = minSpan[0]; 1768 appWidgetInfo.minSpanY = minSpan[1]; 1769 1770 container = c.getInt(containerIndex); 1771 if (container != LauncherSettings.Favorites.CONTAINER_DESKTOP && 1772 container != LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 1773 Log.e(TAG, "Widget found where container != " + 1774 "CONTAINER_DESKTOP nor CONTAINER_HOTSEAT - ignoring!"); 1775 continue; 1776 } 1777 1778 appWidgetInfo.container = c.getInt(containerIndex); 1779 // check & update map of what's occupied 1780 if (!checkItemPlacement(occupied, appWidgetInfo)) { 1781 break; 1782 } 1783 sBgItemsIdMap.put(appWidgetInfo.id, appWidgetInfo); 1784 sBgAppWidgets.add(appWidgetInfo); 1785 } 1786 break; 1787 } 1788 } catch (Exception e) { 1789 Log.w(TAG, "Desktop items loading interrupted:", e); 1790 } 1791 } 1792 } finally { 1793 if (c != null) { 1794 c.close(); 1795 } 1796 } 1797 1798 if (itemsToRemove.size() > 0) { 1799 ContentProviderClient client = contentResolver.acquireContentProviderClient( 1800 LauncherSettings.Favorites.CONTENT_URI); 1801 // Remove dead items 1802 for (long id : itemsToRemove) { 1803 if (DEBUG_LOADERS) { 1804 Log.d(TAG, "Removed id = " + id); 1805 } 1806 // Don't notify content observers 1807 try { 1808 client.delete(LauncherSettings.Favorites.getContentUri(id, false), 1809 null, null); 1810 } catch (RemoteException e) { 1811 Log.w(TAG, "Could not remove id = " + id); 1812 } 1813 } 1814 } 1815 1816 if (loadedOldDb) { 1817 long maxScreenId = 0; 1818 // If we're importing we use the old screen order. 1819 for (ItemInfo item: sBgItemsIdMap.values()) { 1820 long screenId = item.screenId; 1821 if (item.container == LauncherSettings.Favorites.CONTAINER_DESKTOP && 1822 !sBgWorkspaceScreens.contains(screenId)) { 1823 sBgWorkspaceScreens.add(screenId); 1824 if (screenId > maxScreenId) { 1825 maxScreenId = screenId; 1826 } 1827 } 1828 } 1829 Collections.sort(sBgWorkspaceScreens); 1830 mApp.getLauncherProvider().updateMaxScreenId(maxScreenId); 1831 updateWorkspaceScreenOrder(context, sBgWorkspaceScreens); 1832 1833 // Update the max item id after we load an old db 1834 long maxItemId = 0; 1835 // If we're importing we use the old screen order. 1836 for (ItemInfo item: sBgItemsIdMap.values()) { 1837 maxItemId = Math.max(maxItemId, item.id); 1838 } 1839 LauncherAppState app = LauncherAppState.getInstance(); 1840 app.getLauncherProvider().updateMaxItemId(maxItemId); 1841 } else { 1842 Uri screensUri = LauncherSettings.WorkspaceScreens.CONTENT_URI; 1843 final Cursor sc = contentResolver.query(screensUri, null, null, null, null); 1844 TreeMap<Integer, Long> orderedScreens = new TreeMap<Integer, Long>(); 1845 1846 try { 1847 final int idIndex = sc.getColumnIndexOrThrow( 1848 LauncherSettings.WorkspaceScreens._ID); 1849 final int rankIndex = sc.getColumnIndexOrThrow( 1850 LauncherSettings.WorkspaceScreens.SCREEN_RANK); 1851 while (sc.moveToNext()) { 1852 try { 1853 long screenId = sc.getLong(idIndex); 1854 int rank = sc.getInt(rankIndex); 1855 1856 orderedScreens.put(rank, screenId); 1857 } catch (Exception e) { 1858 Log.w(TAG, "Desktop items loading interrupted:", e); 1859 } 1860 } 1861 } finally { 1862 sc.close(); 1863 } 1864 1865 Iterator<Integer> iter = orderedScreens.keySet().iterator(); 1866 while (iter.hasNext()) { 1867 sBgWorkspaceScreens.add(orderedScreens.get(iter.next())); 1868 } 1869 1870 // Remove any empty screens 1871 ArrayList<Long> unusedScreens = new ArrayList<Long>(); 1872 unusedScreens.addAll(sBgWorkspaceScreens); 1873 1874 for (ItemInfo item: sBgItemsIdMap.values()) { 1875 long screenId = item.screenId; 1876 1877 if (item.container == LauncherSettings.Favorites.CONTAINER_DESKTOP && 1878 unusedScreens.contains(screenId)) { 1879 unusedScreens.remove(screenId); 1880 } 1881 } 1882 1883 // If there are any empty screens remove them, and update. 1884 if (unusedScreens.size() != 0) { 1885 sBgWorkspaceScreens.removeAll(unusedScreens); 1886 updateWorkspaceScreenOrder(context, sBgWorkspaceScreens); 1887 } 1888 } 1889 1890 if (DEBUG_LOADERS) { 1891 Log.d(TAG, "loaded workspace in " + (SystemClock.uptimeMillis()-t) + "ms"); 1892 Log.d(TAG, "workspace layout: "); 1893 int nScreens = occupied.size(); 1894 for (int y = 0; y < mCellCountY; y++) { 1895 String line = ""; 1896 1897 Iterator<Long> iter = occupied.keySet().iterator(); 1898 while (iter.hasNext()) { 1899 long screenId = iter.next(); 1900 if (screenId > 0) { 1901 line += " | "; 1902 } 1903 for (int x = 0; x < mCellCountX; x++) { 1904 line += ((occupied.get(screenId)[x][y] != null) ? "#" : "."); 1905 } 1906 } 1907 Log.d(TAG, "[ " + line + " ]"); 1908 } 1909 } 1910 } 1911 return loadedOldDb; 1912 } 1913 1914 /** Filters the set of items who are directly or indirectly (via another container) on the 1915 * specified screen. */ 1916 private void filterCurrentWorkspaceItems(int currentScreen, 1917 ArrayList<ItemInfo> allWorkspaceItems, 1918 ArrayList<ItemInfo> currentScreenItems, 1919 ArrayList<ItemInfo> otherScreenItems) { 1920 // Purge any null ItemInfos 1921 Iterator<ItemInfo> iter = allWorkspaceItems.iterator(); 1922 while (iter.hasNext()) { 1923 ItemInfo i = iter.next(); 1924 if (i == null) { 1925 iter.remove(); 1926 } 1927 } 1928 1929 // If we aren't filtering on a screen, then the set of items to load is the full set of 1930 // items given. 1931 if (currentScreen < 0) { 1932 currentScreenItems.addAll(allWorkspaceItems); 1933 } 1934 1935 // Order the set of items by their containers first, this allows use to walk through the 1936 // list sequentially, build up a list of containers that are in the specified screen, 1937 // as well as all items in those containers. 1938 Set<Long> itemsOnScreen = new HashSet<Long>(); 1939 Collections.sort(allWorkspaceItems, new Comparator<ItemInfo>() { 1940 @Override 1941 public int compare(ItemInfo lhs, ItemInfo rhs) { 1942 return (int) (lhs.container - rhs.container); 1943 } 1944 }); 1945 for (ItemInfo info : allWorkspaceItems) { 1946 if (info.container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 1947 if (info.screenId == currentScreen) { 1948 currentScreenItems.add(info); 1949 itemsOnScreen.add(info.id); 1950 } else { 1951 otherScreenItems.add(info); 1952 } 1953 } else if (info.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 1954 currentScreenItems.add(info); 1955 itemsOnScreen.add(info.id); 1956 } else { 1957 if (itemsOnScreen.contains(info.container)) { 1958 currentScreenItems.add(info); 1959 itemsOnScreen.add(info.id); 1960 } else { 1961 otherScreenItems.add(info); 1962 } 1963 } 1964 } 1965 } 1966 1967 /** Filters the set of widgets which are on the specified screen. */ 1968 private void filterCurrentAppWidgets(int currentScreen, 1969 ArrayList<LauncherAppWidgetInfo> appWidgets, 1970 ArrayList<LauncherAppWidgetInfo> currentScreenWidgets, 1971 ArrayList<LauncherAppWidgetInfo> otherScreenWidgets) { 1972 // If we aren't filtering on a screen, then the set of items to load is the full set of 1973 // widgets given. 1974 if (currentScreen < 0) { 1975 currentScreenWidgets.addAll(appWidgets); 1976 } 1977 1978 for (LauncherAppWidgetInfo widget : appWidgets) { 1979 if (widget == null) continue; 1980 if (widget.container == LauncherSettings.Favorites.CONTAINER_DESKTOP && 1981 widget.screenId == currentScreen) { 1982 currentScreenWidgets.add(widget); 1983 } else { 1984 otherScreenWidgets.add(widget); 1985 } 1986 } 1987 } 1988 1989 /** Filters the set of folders which are on the specified screen. */ 1990 private void filterCurrentFolders(int currentScreen, 1991 HashMap<Long, ItemInfo> itemsIdMap, 1992 HashMap<Long, FolderInfo> folders, 1993 HashMap<Long, FolderInfo> currentScreenFolders, 1994 HashMap<Long, FolderInfo> otherScreenFolders) { 1995 // If we aren't filtering on a screen, then the set of items to load is the full set of 1996 // widgets given. 1997 if (currentScreen < 0) { 1998 currentScreenFolders.putAll(folders); 1999 } 2000 2001 for (long id : folders.keySet()) { 2002 ItemInfo info = itemsIdMap.get(id); 2003 FolderInfo folder = folders.get(id); 2004 if (info == null || folder == null) continue; 2005 if (info.container == LauncherSettings.Favorites.CONTAINER_DESKTOP && 2006 info.screenId == currentScreen) { 2007 currentScreenFolders.put(id, folder); 2008 } else { 2009 otherScreenFolders.put(id, folder); 2010 } 2011 } 2012 } 2013 2014 /** Sorts the set of items by hotseat, workspace (spatially from top to bottom, left to 2015 * right) */ 2016 private void sortWorkspaceItemsSpatially(ArrayList<ItemInfo> workspaceItems) { 2017 // XXX: review this 2018 Collections.sort(workspaceItems, new Comparator<ItemInfo>() { 2019 @Override 2020 public int compare(ItemInfo lhs, ItemInfo rhs) { 2021 int cellCountX = LauncherModel.getCellCountX(); 2022 int cellCountY = LauncherModel.getCellCountY(); 2023 int screenOffset = cellCountX * cellCountY; 2024 int containerOffset = screenOffset * (Launcher.SCREEN_COUNT + 1); // +1 hotseat 2025 long lr = (lhs.container * containerOffset + lhs.screenId * screenOffset + 2026 lhs.cellY * cellCountX + lhs.cellX); 2027 long rr = (rhs.container * containerOffset + rhs.screenId * screenOffset + 2028 rhs.cellY * cellCountX + rhs.cellX); 2029 return (int) (lr - rr); 2030 } 2031 }); 2032 } 2033 2034 private void bindWorkspaceScreens(final Callbacks oldCallbacks, 2035 final ArrayList<Long> orderedScreens) { 2036 2037 final Runnable r = new Runnable() { 2038 @Override 2039 public void run() { 2040 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2041 if (callbacks != null) { 2042 callbacks.bindScreens(orderedScreens); 2043 } 2044 } 2045 }; 2046 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2047 } 2048 2049 private void bindWorkspaceItems(final Callbacks oldCallbacks, 2050 final ArrayList<ItemInfo> workspaceItems, 2051 final ArrayList<LauncherAppWidgetInfo> appWidgets, 2052 final HashMap<Long, FolderInfo> folders, 2053 ArrayList<Runnable> deferredBindRunnables) { 2054 2055 final boolean postOnMainThread = (deferredBindRunnables != null); 2056 2057 // Bind the workspace items 2058 int N = workspaceItems.size(); 2059 for (int i = 0; i < N; i += ITEMS_CHUNK) { 2060 final int start = i; 2061 final int chunkSize = (i+ITEMS_CHUNK <= N) ? ITEMS_CHUNK : (N-i); 2062 final Runnable r = new Runnable() { 2063 @Override 2064 public void run() { 2065 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2066 if (callbacks != null) { 2067 callbacks.bindItems(workspaceItems, start, start+chunkSize, 2068 false); 2069 } 2070 } 2071 }; 2072 if (postOnMainThread) { 2073 deferredBindRunnables.add(r); 2074 } else { 2075 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2076 } 2077 } 2078 2079 // Bind the folders 2080 if (!folders.isEmpty()) { 2081 final Runnable r = new Runnable() { 2082 public void run() { 2083 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2084 if (callbacks != null) { 2085 callbacks.bindFolders(folders); 2086 } 2087 } 2088 }; 2089 if (postOnMainThread) { 2090 deferredBindRunnables.add(r); 2091 } else { 2092 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2093 } 2094 } 2095 2096 // Bind the widgets, one at a time 2097 N = appWidgets.size(); 2098 for (int i = 0; i < N; i++) { 2099 final LauncherAppWidgetInfo widget = appWidgets.get(i); 2100 final Runnable r = new Runnable() { 2101 public void run() { 2102 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2103 if (callbacks != null) { 2104 callbacks.bindAppWidget(widget); 2105 } 2106 } 2107 }; 2108 if (postOnMainThread) { 2109 deferredBindRunnables.add(r); 2110 } else { 2111 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2112 } 2113 } 2114 } 2115 2116 /** 2117 * Binds all loaded data to actual views on the main thread. 2118 */ 2119 private void bindWorkspace(int synchronizeBindPage, final boolean isUpgradePath) { 2120 final long t = SystemClock.uptimeMillis(); 2121 Runnable r; 2122 2123 // Don't use these two variables in any of the callback runnables. 2124 // Otherwise we hold a reference to them. 2125 final Callbacks oldCallbacks = mCallbacks.get(); 2126 if (oldCallbacks == null) { 2127 // This launcher has exited and nobody bothered to tell us. Just bail. 2128 Log.w(TAG, "LoaderTask running with no launcher"); 2129 return; 2130 } 2131 2132 final boolean isLoadingSynchronously = (synchronizeBindPage > -1); 2133 final int currentScreen = isLoadingSynchronously ? synchronizeBindPage : 2134 oldCallbacks.getCurrentWorkspaceScreen(); 2135 2136 // Load all the items that are on the current page first (and in the process, unbind 2137 // all the existing workspace items before we call startBinding() below. 2138 unbindWorkspaceItemsOnMainThread(); 2139 ArrayList<ItemInfo> workspaceItems = new ArrayList<ItemInfo>(); 2140 ArrayList<LauncherAppWidgetInfo> appWidgets = 2141 new ArrayList<LauncherAppWidgetInfo>(); 2142 HashMap<Long, FolderInfo> folders = new HashMap<Long, FolderInfo>(); 2143 HashMap<Long, ItemInfo> itemsIdMap = new HashMap<Long, ItemInfo>(); 2144 ArrayList<Long> orderedScreenIds = new ArrayList<Long>(); 2145 synchronized (sBgLock) { 2146 workspaceItems.addAll(sBgWorkspaceItems); 2147 appWidgets.addAll(sBgAppWidgets); 2148 folders.putAll(sBgFolders); 2149 itemsIdMap.putAll(sBgItemsIdMap); 2150 orderedScreenIds.addAll(sBgWorkspaceScreens); 2151 } 2152 2153 ArrayList<ItemInfo> currentWorkspaceItems = new ArrayList<ItemInfo>(); 2154 ArrayList<ItemInfo> otherWorkspaceItems = new ArrayList<ItemInfo>(); 2155 ArrayList<LauncherAppWidgetInfo> currentAppWidgets = 2156 new ArrayList<LauncherAppWidgetInfo>(); 2157 ArrayList<LauncherAppWidgetInfo> otherAppWidgets = 2158 new ArrayList<LauncherAppWidgetInfo>(); 2159 HashMap<Long, FolderInfo> currentFolders = new HashMap<Long, FolderInfo>(); 2160 HashMap<Long, FolderInfo> otherFolders = new HashMap<Long, FolderInfo>(); 2161 2162 // Separate the items that are on the current screen, and all the other remaining items 2163 filterCurrentWorkspaceItems(currentScreen, workspaceItems, currentWorkspaceItems, 2164 otherWorkspaceItems); 2165 filterCurrentAppWidgets(currentScreen, appWidgets, currentAppWidgets, 2166 otherAppWidgets); 2167 filterCurrentFolders(currentScreen, itemsIdMap, folders, currentFolders, 2168 otherFolders); 2169 sortWorkspaceItemsSpatially(currentWorkspaceItems); 2170 sortWorkspaceItemsSpatially(otherWorkspaceItems); 2171 2172 // Tell the workspace that we're about to start binding items 2173 r = new Runnable() { 2174 public void run() { 2175 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2176 if (callbacks != null) { 2177 callbacks.startBinding(); 2178 } 2179 } 2180 }; 2181 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2182 2183 bindWorkspaceScreens(oldCallbacks, orderedScreenIds); 2184 2185 // Load items on the current page 2186 bindWorkspaceItems(oldCallbacks, currentWorkspaceItems, currentAppWidgets, 2187 currentFolders, null); 2188 if (isLoadingSynchronously) { 2189 r = new Runnable() { 2190 public void run() { 2191 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2192 if (callbacks != null) { 2193 callbacks.onPageBoundSynchronously(currentScreen); 2194 } 2195 } 2196 }; 2197 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2198 } 2199 2200 // Load all the remaining pages (if we are loading synchronously, we want to defer this 2201 // work until after the first render) 2202 mDeferredBindRunnables.clear(); 2203 bindWorkspaceItems(oldCallbacks, otherWorkspaceItems, otherAppWidgets, otherFolders, 2204 (isLoadingSynchronously ? mDeferredBindRunnables : null)); 2205 2206 // Tell the workspace that we're done binding items 2207 r = new Runnable() { 2208 public void run() { 2209 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2210 if (callbacks != null) { 2211 callbacks.finishBindingItems(isUpgradePath); 2212 } 2213 2214 // If we're profiling, ensure this is the last thing in the queue. 2215 if (DEBUG_LOADERS) { 2216 Log.d(TAG, "bound workspace in " 2217 + (SystemClock.uptimeMillis()-t) + "ms"); 2218 } 2219 2220 mIsLoadingAndBindingWorkspace = false; 2221 } 2222 }; 2223 if (isLoadingSynchronously) { 2224 mDeferredBindRunnables.add(r); 2225 } else { 2226 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2227 } 2228 } 2229 2230 private void loadAndBindAllApps() { 2231 if (DEBUG_LOADERS) { 2232 Log.d(TAG, "loadAndBindAllApps mAllAppsLoaded=" + mAllAppsLoaded); 2233 } 2234 if (!mAllAppsLoaded) { 2235 loadAllApps(); 2236 synchronized (LoaderTask.this) { 2237 if (mStopped) { 2238 return; 2239 } 2240 mAllAppsLoaded = true; 2241 } 2242 } else { 2243 onlyBindAllApps(); 2244 } 2245 } 2246 2247 private void onlyBindAllApps() { 2248 final Callbacks oldCallbacks = mCallbacks.get(); 2249 if (oldCallbacks == null) { 2250 // This launcher has exited and nobody bothered to tell us. Just bail. 2251 Log.w(TAG, "LoaderTask running with no launcher (onlyBindAllApps)"); 2252 return; 2253 } 2254 2255 // shallow copy 2256 @SuppressWarnings("unchecked") 2257 final ArrayList<ApplicationInfo> list 2258 = (ArrayList<ApplicationInfo>) mBgAllAppsList.data.clone(); 2259 Runnable r = new Runnable() { 2260 public void run() { 2261 final long t = SystemClock.uptimeMillis(); 2262 final Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2263 if (callbacks != null) { 2264 callbacks.bindAllApplications(list); 2265 } 2266 if (DEBUG_LOADERS) { 2267 Log.d(TAG, "bound all " + list.size() + " apps from cache in " 2268 + (SystemClock.uptimeMillis()-t) + "ms"); 2269 } 2270 } 2271 }; 2272 boolean isRunningOnMainThread = !(sWorkerThread.getThreadId() == Process.myTid()); 2273 if (isRunningOnMainThread) { 2274 r.run(); 2275 } else { 2276 mHandler.post(r); 2277 } 2278 } 2279 2280 private void loadAllApps() { 2281 final long loadTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 2282 2283 // Don't use these two variables in any of the callback runnables. 2284 // Otherwise we hold a reference to them. 2285 final Callbacks oldCallbacks = mCallbacks.get(); 2286 if (oldCallbacks == null) { 2287 // This launcher has exited and nobody bothered to tell us. Just bail. 2288 Log.w(TAG, "LoaderTask running with no launcher (loadAllApps)"); 2289 return; 2290 } 2291 2292 final PackageManager packageManager = mContext.getPackageManager(); 2293 final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null); 2294 mainIntent.addCategory(Intent.CATEGORY_LAUNCHER); 2295 2296 // Clear the list of apps 2297 mBgAllAppsList.clear(); 2298 2299 // Query for the set of apps 2300 final long qiaTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 2301 List<ResolveInfo> apps = packageManager.queryIntentActivities(mainIntent, 0); 2302 if (DEBUG_LOADERS) { 2303 Log.d(TAG, "queryIntentActivities took " 2304 + (SystemClock.uptimeMillis()-qiaTime) + "ms"); 2305 Log.d(TAG, "queryIntentActivities got " + apps.size() + " apps"); 2306 } 2307 // Fail if we don't have any apps 2308 if (apps == null || apps.isEmpty()) { 2309 return; 2310 } 2311 // Sort the applications by name 2312 final long sortTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 2313 Collections.sort(apps, 2314 new LauncherModel.ShortcutNameComparator(packageManager, mLabelCache)); 2315 if (DEBUG_LOADERS) { 2316 Log.d(TAG, "sort took " 2317 + (SystemClock.uptimeMillis()-sortTime) + "ms"); 2318 } 2319 2320 // Create the ApplicationInfos 2321 final long addTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 2322 for (int i = 0; i < apps.size(); i++) { 2323 // This builds the icon bitmaps. 2324 mBgAllAppsList.add(new ApplicationInfo(packageManager, apps.get(i), 2325 mIconCache, mLabelCache)); 2326 } 2327 2328 final Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2329 final ArrayList<ApplicationInfo> added = mBgAllAppsList.added; 2330 mBgAllAppsList.added = new ArrayList<ApplicationInfo>(); 2331 2332 // Post callback on main thread 2333 mHandler.post(new Runnable() { 2334 public void run() { 2335 final long bindTime = SystemClock.uptimeMillis(); 2336 if (callbacks != null) { 2337 callbacks.bindAllApplications(added); 2338 if (DEBUG_LOADERS) { 2339 Log.d(TAG, "bound " + added.size() + " apps in " 2340 + (SystemClock.uptimeMillis() - bindTime) + "ms"); 2341 } 2342 } else { 2343 Log.i(TAG, "not binding apps: no Launcher activity"); 2344 } 2345 } 2346 }); 2347 2348 if (DEBUG_LOADERS) { 2349 Log.d(TAG, "Icons processed in " 2350 + (SystemClock.uptimeMillis() - loadTime) + "ms"); 2351 } 2352 } 2353 2354 public void dumpState() { 2355 synchronized (sBgLock) { 2356 Log.d(TAG, "mLoaderTask.mContext=" + mContext); 2357 Log.d(TAG, "mLoaderTask.mIsLaunching=" + mIsLaunching); 2358 Log.d(TAG, "mLoaderTask.mStopped=" + mStopped); 2359 Log.d(TAG, "mLoaderTask.mLoadAndBindStepFinished=" + mLoadAndBindStepFinished); 2360 Log.d(TAG, "mItems size=" + sBgWorkspaceItems.size()); 2361 } 2362 } 2363 } 2364 2365 void enqueuePackageUpdated(PackageUpdatedTask task) { 2366 sWorker.post(task); 2367 } 2368 2369 private class PackageUpdatedTask implements Runnable { 2370 int mOp; 2371 String[] mPackages; 2372 2373 public static final int OP_NONE = 0; 2374 public static final int OP_ADD = 1; 2375 public static final int OP_UPDATE = 2; 2376 public static final int OP_REMOVE = 3; // uninstlled 2377 public static final int OP_UNAVAILABLE = 4; // external media unmounted 2378 2379 2380 public PackageUpdatedTask(int op, String[] packages) { 2381 mOp = op; 2382 mPackages = packages; 2383 } 2384 2385 public void run() { 2386 final Context context = mApp.getContext(); 2387 2388 final String[] packages = mPackages; 2389 final int N = packages.length; 2390 switch (mOp) { 2391 case OP_ADD: 2392 for (int i=0; i<N; i++) { 2393 if (DEBUG_LOADERS) Log.d(TAG, "mAllAppsList.addPackage " + packages[i]); 2394 mBgAllAppsList.addPackage(context, packages[i]); 2395 } 2396 break; 2397 case OP_UPDATE: 2398 for (int i=0; i<N; i++) { 2399 if (DEBUG_LOADERS) Log.d(TAG, "mAllAppsList.updatePackage " + packages[i]); 2400 mBgAllAppsList.updatePackage(context, packages[i]); 2401 WidgetPreviewLoader.removeFromDb( 2402 mApp.getWidgetPreviewCacheDb(), packages[i]); 2403 } 2404 break; 2405 case OP_REMOVE: 2406 case OP_UNAVAILABLE: 2407 for (int i=0; i<N; i++) { 2408 if (DEBUG_LOADERS) Log.d(TAG, "mAllAppsList.removePackage " + packages[i]); 2409 mBgAllAppsList.removePackage(packages[i]); 2410 WidgetPreviewLoader.removeFromDb( 2411 mApp.getWidgetPreviewCacheDb(), packages[i]); 2412 } 2413 break; 2414 } 2415 2416 ArrayList<ApplicationInfo> added = null; 2417 ArrayList<ApplicationInfo> modified = null; 2418 final ArrayList<ApplicationInfo> removedApps = new ArrayList<ApplicationInfo>(); 2419 2420 if (mBgAllAppsList.added.size() > 0) { 2421 added = new ArrayList<ApplicationInfo>(mBgAllAppsList.added); 2422 mBgAllAppsList.added.clear(); 2423 } 2424 if (mBgAllAppsList.modified.size() > 0) { 2425 modified = new ArrayList<ApplicationInfo>(mBgAllAppsList.modified); 2426 mBgAllAppsList.modified.clear(); 2427 } 2428 if (mBgAllAppsList.removed.size() > 0) { 2429 removedApps.addAll(mBgAllAppsList.removed); 2430 mBgAllAppsList.removed.clear(); 2431 } 2432 2433 final Callbacks callbacks = mCallbacks != null ? mCallbacks.get() : null; 2434 if (callbacks == null) { 2435 Log.w(TAG, "Nobody to tell about the new app. Launcher is probably loading."); 2436 return; 2437 } 2438 2439 if (added != null) { 2440 // Ensure that we add all the workspace applications to the db 2441 final ArrayList<ItemInfo> addedInfos = new ArrayList<ItemInfo>(added); 2442 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 2443 addAndBindAddedApps(context, addedInfos, cb); 2444 } 2445 if (modified != null) { 2446 final ArrayList<ApplicationInfo> modifiedFinal = modified; 2447 2448 // Update the launcher db to reflect the changes 2449 for (ApplicationInfo a : modifiedFinal) { 2450 ArrayList<ItemInfo> infos = 2451 getItemInfoForComponentName(a.componentName); 2452 for (ItemInfo i : infos) { 2453 if (isShortcutInfoUpdateable(i)) { 2454 ShortcutInfo info = (ShortcutInfo) i; 2455 info.title = a.title.toString(); 2456 updateItemInDatabase(context, info); 2457 } 2458 } 2459 } 2460 2461 mHandler.post(new Runnable() { 2462 public void run() { 2463 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 2464 if (callbacks == cb && cb != null) { 2465 callbacks.bindAppsUpdated(modifiedFinal); 2466 } 2467 } 2468 }); 2469 } 2470 // If a package has been removed, or an app has been removed as a result of 2471 // an update (for example), make the removed callback. 2472 if (mOp == OP_REMOVE || !removedApps.isEmpty()) { 2473 final boolean packageRemoved = (mOp == OP_REMOVE); 2474 final ArrayList<String> removedPackageNames = 2475 new ArrayList<String>(Arrays.asList(packages)); 2476 2477 // Update the launcher db to reflect the removal of apps 2478 if (packageRemoved) { 2479 for (String pn : removedPackageNames) { 2480 ArrayList<ItemInfo> infos = getItemInfoForPackageName(pn); 2481 for (ItemInfo i : infos) { 2482 deleteItemFromDatabase(context, i); 2483 } 2484 } 2485 } else { 2486 for (ApplicationInfo a : removedApps) { 2487 ArrayList<ItemInfo> infos = 2488 getItemInfoForComponentName(a.componentName); 2489 for (ItemInfo i : infos) { 2490 deleteItemFromDatabase(context, i); 2491 } 2492 } 2493 } 2494 2495 mHandler.post(new Runnable() { 2496 public void run() { 2497 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 2498 if (callbacks == cb && cb != null) { 2499 callbacks.bindComponentsRemoved(removedPackageNames, 2500 removedApps, packageRemoved); 2501 } 2502 } 2503 }); 2504 } 2505 2506 final ArrayList<Object> widgetsAndShortcuts = 2507 getSortedWidgetsAndShortcuts(context); 2508 mHandler.post(new Runnable() { 2509 @Override 2510 public void run() { 2511 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 2512 if (callbacks == cb && cb != null) { 2513 callbacks.bindPackagesUpdated(widgetsAndShortcuts); 2514 } 2515 } 2516 }); 2517 } 2518 } 2519 2520 // Returns a list of ResolveInfos/AppWindowInfos in sorted order 2521 public static ArrayList<Object> getSortedWidgetsAndShortcuts(Context context) { 2522 PackageManager packageManager = context.getPackageManager(); 2523 final ArrayList<Object> widgetsAndShortcuts = new ArrayList<Object>(); 2524 widgetsAndShortcuts.addAll(AppWidgetManager.getInstance(context).getInstalledProviders()); 2525 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 2526 widgetsAndShortcuts.addAll(packageManager.queryIntentActivities(shortcutsIntent, 0)); 2527 Collections.sort(widgetsAndShortcuts, 2528 new LauncherModel.WidgetAndShortcutNameComparator(packageManager)); 2529 return widgetsAndShortcuts; 2530 } 2531 2532 /** 2533 * This is called from the code that adds shortcuts from the intent receiver. This 2534 * doesn't have a Cursor, but 2535 */ 2536 public ShortcutInfo getShortcutInfo(PackageManager manager, Intent intent, Context context) { 2537 return getShortcutInfo(manager, intent, context, null, -1, -1, null); 2538 } 2539 2540 /** 2541 * Make an ShortcutInfo object for a shortcut that is an application. 2542 * 2543 * If c is not null, then it will be used to fill in missing data like the title and icon. 2544 */ 2545 public ShortcutInfo getShortcutInfo(PackageManager manager, Intent intent, Context context, 2546 Cursor c, int iconIndex, int titleIndex, HashMap<Object, CharSequence> labelCache) { 2547 Bitmap icon = null; 2548 final ShortcutInfo info = new ShortcutInfo(); 2549 2550 ComponentName componentName = intent.getComponent(); 2551 if (componentName == null) { 2552 return null; 2553 } 2554 2555 try { 2556 PackageInfo pi = manager.getPackageInfo(componentName.getPackageName(), 0); 2557 if (!pi.applicationInfo.enabled) { 2558 // If we return null here, the corresponding item will be removed from the launcher 2559 // db and will not appear in the workspace. 2560 return null; 2561 } 2562 info.initFlagsAndFirstInstallTime(pi); 2563 } catch (NameNotFoundException e) { 2564 Log.d(TAG, "getPackInfo failed for package " + componentName.getPackageName()); 2565 } 2566 2567 // TODO: See if the PackageManager knows about this case. If it doesn't 2568 // then return null & delete this. 2569 2570 // the resource -- This may implicitly give us back the fallback icon, 2571 // but don't worry about that. All we're doing with usingFallbackIcon is 2572 // to avoid saving lots of copies of that in the database, and most apps 2573 // have icons anyway. 2574 2575 // Attempt to use queryIntentActivities to get the ResolveInfo (with IntentFilter info) and 2576 // if that fails, or is ambiguious, fallback to the standard way of getting the resolve info 2577 // via resolveActivity(). 2578 ResolveInfo resolveInfo = null; 2579 ComponentName oldComponent = intent.getComponent(); 2580 Intent newIntent = new Intent(intent.getAction(), null); 2581 newIntent.addCategory(Intent.CATEGORY_LAUNCHER); 2582 newIntent.setPackage(oldComponent.getPackageName()); 2583 List<ResolveInfo> infos = manager.queryIntentActivities(newIntent, 0); 2584 for (ResolveInfo i : infos) { 2585 ComponentName cn = new ComponentName(i.activityInfo.packageName, 2586 i.activityInfo.name); 2587 if (cn.equals(oldComponent)) { 2588 resolveInfo = i; 2589 } 2590 } 2591 if (resolveInfo == null) { 2592 resolveInfo = manager.resolveActivity(intent, 0); 2593 } 2594 if (resolveInfo != null) { 2595 icon = mIconCache.getIcon(componentName, resolveInfo, labelCache); 2596 } 2597 // the db 2598 if (icon == null) { 2599 if (c != null) { 2600 icon = getIconFromCursor(c, iconIndex, context); 2601 } 2602 } 2603 // the fallback icon 2604 if (icon == null) { 2605 icon = getFallbackIcon(); 2606 info.usingFallbackIcon = true; 2607 } 2608 info.setIcon(icon); 2609 2610 // from the resource 2611 if (resolveInfo != null) { 2612 ComponentName key = LauncherModel.getComponentNameFromResolveInfo(resolveInfo); 2613 if (labelCache != null && labelCache.containsKey(key)) { 2614 info.title = labelCache.get(key); 2615 } else { 2616 info.title = resolveInfo.activityInfo.loadLabel(manager); 2617 if (labelCache != null) { 2618 labelCache.put(key, info.title); 2619 } 2620 } 2621 } 2622 // from the db 2623 if (info.title == null) { 2624 if (c != null) { 2625 info.title = c.getString(titleIndex); 2626 } 2627 } 2628 // fall back to the class name of the activity 2629 if (info.title == null) { 2630 info.title = componentName.getClassName(); 2631 } 2632 info.itemType = LauncherSettings.Favorites.ITEM_TYPE_APPLICATION; 2633 return info; 2634 } 2635 2636 static ArrayList<ItemInfo> filterItemInfos(Collection<ItemInfo> infos, 2637 ItemInfoFilter f) { 2638 HashSet<ItemInfo> filtered = new HashSet<ItemInfo>(); 2639 for (ItemInfo i : infos) { 2640 if (i instanceof ShortcutInfo) { 2641 ShortcutInfo info = (ShortcutInfo) i; 2642 ComponentName cn = info.intent.getComponent(); 2643 if (cn != null && f.filterItem(null, info, cn)) { 2644 filtered.add(info); 2645 } 2646 } else if (i instanceof FolderInfo) { 2647 FolderInfo info = (FolderInfo) i; 2648 for (ShortcutInfo s : info.contents) { 2649 ComponentName cn = s.intent.getComponent(); 2650 if (cn != null && f.filterItem(info, s, cn)) { 2651 filtered.add(s); 2652 } 2653 } 2654 } else if (i instanceof LauncherAppWidgetInfo) { 2655 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) i; 2656 ComponentName cn = info.providerName; 2657 if (cn != null && f.filterItem(null, info, cn)) { 2658 filtered.add(info); 2659 } 2660 } 2661 } 2662 return new ArrayList<ItemInfo>(filtered); 2663 } 2664 2665 private ArrayList<ItemInfo> getItemInfoForPackageName(final String pn) { 2666 HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 2667 ItemInfoFilter filter = new ItemInfoFilter() { 2668 @Override 2669 public boolean filterItem(ItemInfo parent, ItemInfo info, ComponentName cn) { 2670 return cn.getPackageName().equals(pn); 2671 } 2672 }; 2673 return filterItemInfos(sBgItemsIdMap.values(), filter); 2674 } 2675 2676 private ArrayList<ItemInfo> getItemInfoForComponentName(final ComponentName cname) { 2677 HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 2678 ItemInfoFilter filter = new ItemInfoFilter() { 2679 @Override 2680 public boolean filterItem(ItemInfo parent, ItemInfo info, ComponentName cn) { 2681 return cn.equals(cname); 2682 } 2683 }; 2684 return filterItemInfos(sBgItemsIdMap.values(), filter); 2685 } 2686 2687 public static boolean isShortcutInfoUpdateable(ItemInfo i) { 2688 if (i instanceof ShortcutInfo) { 2689 ShortcutInfo info = (ShortcutInfo) i; 2690 // We need to check for ACTION_MAIN otherwise getComponent() might 2691 // return null for some shortcuts (for instance, for shortcuts to 2692 // web pages.) 2693 Intent intent = info.intent; 2694 ComponentName name = intent.getComponent(); 2695 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION && 2696 Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 2697 return true; 2698 } 2699 } 2700 return false; 2701 } 2702 2703 /** 2704 * Make an ShortcutInfo object for a shortcut that isn't an application. 2705 */ 2706 private ShortcutInfo getShortcutInfo(Cursor c, Context context, 2707 int iconTypeIndex, int iconPackageIndex, int iconResourceIndex, int iconIndex, 2708 int titleIndex) { 2709 2710 Bitmap icon = null; 2711 final ShortcutInfo info = new ShortcutInfo(); 2712 info.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 2713 2714 // TODO: If there's an explicit component and we can't install that, delete it. 2715 2716 info.title = c.getString(titleIndex); 2717 2718 int iconType = c.getInt(iconTypeIndex); 2719 switch (iconType) { 2720 case LauncherSettings.Favorites.ICON_TYPE_RESOURCE: 2721 String packageName = c.getString(iconPackageIndex); 2722 String resourceName = c.getString(iconResourceIndex); 2723 PackageManager packageManager = context.getPackageManager(); 2724 info.customIcon = false; 2725 // the resource 2726 try { 2727 Resources resources = packageManager.getResourcesForApplication(packageName); 2728 if (resources != null) { 2729 final int id = resources.getIdentifier(resourceName, null, null); 2730 icon = Utilities.createIconBitmap( 2731 mIconCache.getFullResIcon(resources, id), context); 2732 } 2733 } catch (Exception e) { 2734 // drop this. we have other places to look for icons 2735 } 2736 // the db 2737 if (icon == null) { 2738 icon = getIconFromCursor(c, iconIndex, context); 2739 } 2740 // the fallback icon 2741 if (icon == null) { 2742 icon = getFallbackIcon(); 2743 info.usingFallbackIcon = true; 2744 } 2745 break; 2746 case LauncherSettings.Favorites.ICON_TYPE_BITMAP: 2747 icon = getIconFromCursor(c, iconIndex, context); 2748 if (icon == null) { 2749 icon = getFallbackIcon(); 2750 info.customIcon = false; 2751 info.usingFallbackIcon = true; 2752 } else { 2753 info.customIcon = true; 2754 } 2755 break; 2756 default: 2757 icon = getFallbackIcon(); 2758 info.usingFallbackIcon = true; 2759 info.customIcon = false; 2760 break; 2761 } 2762 info.setIcon(icon); 2763 return info; 2764 } 2765 2766 Bitmap getIconFromCursor(Cursor c, int iconIndex, Context context) { 2767 @SuppressWarnings("all") // suppress dead code warning 2768 final boolean debug = false; 2769 if (debug) { 2770 Log.d(TAG, "getIconFromCursor app=" 2771 + c.getString(c.getColumnIndexOrThrow(LauncherSettings.Favorites.TITLE))); 2772 } 2773 byte[] data = c.getBlob(iconIndex); 2774 try { 2775 return Utilities.createIconBitmap( 2776 BitmapFactory.decodeByteArray(data, 0, data.length), context); 2777 } catch (Exception e) { 2778 return null; 2779 } 2780 } 2781 2782 ShortcutInfo addShortcut(Context context, Intent data, long container, int screen, 2783 int cellX, int cellY, boolean notify) { 2784 final ShortcutInfo info = infoFromShortcutIntent(context, data, null); 2785 if (info == null) { 2786 return null; 2787 } 2788 addItemToDatabase(context, info, container, screen, cellX, cellY, notify); 2789 2790 return info; 2791 } 2792 2793 /** 2794 * Attempts to find an AppWidgetProviderInfo that matches the given component. 2795 */ 2796 AppWidgetProviderInfo findAppWidgetProviderInfoWithComponent(Context context, 2797 ComponentName component) { 2798 List<AppWidgetProviderInfo> widgets = 2799 AppWidgetManager.getInstance(context).getInstalledProviders(); 2800 for (AppWidgetProviderInfo info : widgets) { 2801 if (info.provider.equals(component)) { 2802 return info; 2803 } 2804 } 2805 return null; 2806 } 2807 2808 /** 2809 * Returns a list of all the widgets that can handle configuration with a particular mimeType. 2810 */ 2811 List<WidgetMimeTypeHandlerData> resolveWidgetsForMimeType(Context context, String mimeType) { 2812 final PackageManager packageManager = context.getPackageManager(); 2813 final List<WidgetMimeTypeHandlerData> supportedConfigurationActivities = 2814 new ArrayList<WidgetMimeTypeHandlerData>(); 2815 2816 final Intent supportsIntent = 2817 new Intent(InstallWidgetReceiver.ACTION_SUPPORTS_CLIPDATA_MIMETYPE); 2818 supportsIntent.setType(mimeType); 2819 2820 // Create a set of widget configuration components that we can test against 2821 final List<AppWidgetProviderInfo> widgets = 2822 AppWidgetManager.getInstance(context).getInstalledProviders(); 2823 final HashMap<ComponentName, AppWidgetProviderInfo> configurationComponentToWidget = 2824 new HashMap<ComponentName, AppWidgetProviderInfo>(); 2825 for (AppWidgetProviderInfo info : widgets) { 2826 configurationComponentToWidget.put(info.configure, info); 2827 } 2828 2829 // Run through each of the intents that can handle this type of clip data, and cross 2830 // reference them with the components that are actual configuration components 2831 final List<ResolveInfo> activities = packageManager.queryIntentActivities(supportsIntent, 2832 PackageManager.MATCH_DEFAULT_ONLY); 2833 for (ResolveInfo info : activities) { 2834 final ActivityInfo activityInfo = info.activityInfo; 2835 final ComponentName infoComponent = new ComponentName(activityInfo.packageName, 2836 activityInfo.name); 2837 if (configurationComponentToWidget.containsKey(infoComponent)) { 2838 supportedConfigurationActivities.add( 2839 new InstallWidgetReceiver.WidgetMimeTypeHandlerData(info, 2840 configurationComponentToWidget.get(infoComponent))); 2841 } 2842 } 2843 return supportedConfigurationActivities; 2844 } 2845 2846 ShortcutInfo infoFromShortcutIntent(Context context, Intent data, Bitmap fallbackIcon) { 2847 Intent intent = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_INTENT); 2848 String name = data.getStringExtra(Intent.EXTRA_SHORTCUT_NAME); 2849 Parcelable bitmap = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON); 2850 2851 if (intent == null) { 2852 // If the intent is null, we can't construct a valid ShortcutInfo, so we return null 2853 Log.e(TAG, "Can't construct ShorcutInfo with null intent"); 2854 return null; 2855 } 2856 2857 Bitmap icon = null; 2858 boolean customIcon = false; 2859 ShortcutIconResource iconResource = null; 2860 2861 if (bitmap != null && bitmap instanceof Bitmap) { 2862 icon = Utilities.createIconBitmap(new FastBitmapDrawable((Bitmap)bitmap), context); 2863 customIcon = true; 2864 } else { 2865 Parcelable extra = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE); 2866 if (extra != null && extra instanceof ShortcutIconResource) { 2867 try { 2868 iconResource = (ShortcutIconResource) extra; 2869 final PackageManager packageManager = context.getPackageManager(); 2870 Resources resources = packageManager.getResourcesForApplication( 2871 iconResource.packageName); 2872 final int id = resources.getIdentifier(iconResource.resourceName, null, null); 2873 icon = Utilities.createIconBitmap( 2874 mIconCache.getFullResIcon(resources, id), context); 2875 } catch (Exception e) { 2876 Log.w(TAG, "Could not load shortcut icon: " + extra); 2877 } 2878 } 2879 } 2880 2881 final ShortcutInfo info = new ShortcutInfo(); 2882 2883 if (icon == null) { 2884 if (fallbackIcon != null) { 2885 icon = fallbackIcon; 2886 } else { 2887 icon = getFallbackIcon(); 2888 info.usingFallbackIcon = true; 2889 } 2890 } 2891 info.setIcon(icon); 2892 2893 info.title = name; 2894 info.intent = intent; 2895 info.customIcon = customIcon; 2896 info.iconResource = iconResource; 2897 2898 return info; 2899 } 2900 2901 boolean queueIconToBeChecked(HashMap<Object, byte[]> cache, ShortcutInfo info, Cursor c, 2902 int iconIndex) { 2903 // If apps can't be on SD, don't even bother. 2904 if (!mAppsCanBeOnExternalStorage) { 2905 return false; 2906 } 2907 // If this icon doesn't have a custom icon, check to see 2908 // what's stored in the DB, and if it doesn't match what 2909 // we're going to show, store what we are going to show back 2910 // into the DB. We do this so when we're loading, if the 2911 // package manager can't find an icon (for example because 2912 // the app is on SD) then we can use that instead. 2913 if (!info.customIcon && !info.usingFallbackIcon) { 2914 cache.put(info, c.getBlob(iconIndex)); 2915 return true; 2916 } 2917 return false; 2918 } 2919 void updateSavedIcon(Context context, ShortcutInfo info, byte[] data) { 2920 boolean needSave = false; 2921 try { 2922 if (data != null) { 2923 Bitmap saved = BitmapFactory.decodeByteArray(data, 0, data.length); 2924 Bitmap loaded = info.getIcon(mIconCache); 2925 needSave = !saved.sameAs(loaded); 2926 } else { 2927 needSave = true; 2928 } 2929 } catch (Exception e) { 2930 needSave = true; 2931 } 2932 if (needSave) { 2933 Log.d(TAG, "going to save icon bitmap for info=" + info); 2934 // This is slower than is ideal, but this only happens once 2935 // or when the app is updated with a new icon. 2936 updateItemInDatabase(context, info); 2937 } 2938 } 2939 2940 /** 2941 * Return an existing FolderInfo object if we have encountered this ID previously, 2942 * or make a new one. 2943 */ 2944 private static FolderInfo findOrMakeFolder(HashMap<Long, FolderInfo> folders, long id) { 2945 // See if a placeholder was created for us already 2946 FolderInfo folderInfo = folders.get(id); 2947 if (folderInfo == null) { 2948 // No placeholder -- create a new instance 2949 folderInfo = new FolderInfo(); 2950 folders.put(id, folderInfo); 2951 } 2952 return folderInfo; 2953 } 2954 2955 public static final Comparator<ApplicationInfo> getAppNameComparator() { 2956 final Collator collator = Collator.getInstance(); 2957 return new Comparator<ApplicationInfo>() { 2958 public final int compare(ApplicationInfo a, ApplicationInfo b) { 2959 int result = collator.compare(a.title.toString(), b.title.toString()); 2960 if (result == 0) { 2961 result = a.componentName.compareTo(b.componentName); 2962 } 2963 return result; 2964 } 2965 }; 2966 } 2967 public static final Comparator<ApplicationInfo> APP_INSTALL_TIME_COMPARATOR 2968 = new Comparator<ApplicationInfo>() { 2969 public final int compare(ApplicationInfo a, ApplicationInfo b) { 2970 if (a.firstInstallTime < b.firstInstallTime) return 1; 2971 if (a.firstInstallTime > b.firstInstallTime) return -1; 2972 return 0; 2973 } 2974 }; 2975 public static final Comparator<AppWidgetProviderInfo> getWidgetNameComparator() { 2976 final Collator collator = Collator.getInstance(); 2977 return new Comparator<AppWidgetProviderInfo>() { 2978 public final int compare(AppWidgetProviderInfo a, AppWidgetProviderInfo b) { 2979 return collator.compare(a.label.toString(), b.label.toString()); 2980 } 2981 }; 2982 } 2983 static ComponentName getComponentNameFromResolveInfo(ResolveInfo info) { 2984 if (info.activityInfo != null) { 2985 return new ComponentName(info.activityInfo.packageName, info.activityInfo.name); 2986 } else { 2987 return new ComponentName(info.serviceInfo.packageName, info.serviceInfo.name); 2988 } 2989 } 2990 public static class ShortcutNameComparator implements Comparator<ResolveInfo> { 2991 private Collator mCollator; 2992 private PackageManager mPackageManager; 2993 private HashMap<Object, CharSequence> mLabelCache; 2994 ShortcutNameComparator(PackageManager pm) { 2995 mPackageManager = pm; 2996 mLabelCache = new HashMap<Object, CharSequence>(); 2997 mCollator = Collator.getInstance(); 2998 } 2999 ShortcutNameComparator(PackageManager pm, HashMap<Object, CharSequence> labelCache) { 3000 mPackageManager = pm; 3001 mLabelCache = labelCache; 3002 mCollator = Collator.getInstance(); 3003 } 3004 public final int compare(ResolveInfo a, ResolveInfo b) { 3005 CharSequence labelA, labelB; 3006 ComponentName keyA = LauncherModel.getComponentNameFromResolveInfo(a); 3007 ComponentName keyB = LauncherModel.getComponentNameFromResolveInfo(b); 3008 if (mLabelCache.containsKey(keyA)) { 3009 labelA = mLabelCache.get(keyA); 3010 } else { 3011 labelA = a.loadLabel(mPackageManager).toString(); 3012 3013 mLabelCache.put(keyA, labelA); 3014 } 3015 if (mLabelCache.containsKey(keyB)) { 3016 labelB = mLabelCache.get(keyB); 3017 } else { 3018 labelB = b.loadLabel(mPackageManager).toString(); 3019 3020 mLabelCache.put(keyB, labelB); 3021 } 3022 return mCollator.compare(labelA, labelB); 3023 } 3024 }; 3025 public static class WidgetAndShortcutNameComparator implements Comparator<Object> { 3026 private Collator mCollator; 3027 private PackageManager mPackageManager; 3028 private HashMap<Object, String> mLabelCache; 3029 WidgetAndShortcutNameComparator(PackageManager pm) { 3030 mPackageManager = pm; 3031 mLabelCache = new HashMap<Object, String>(); 3032 mCollator = Collator.getInstance(); 3033 } 3034 public final int compare(Object a, Object b) { 3035 String labelA, labelB; 3036 if (mLabelCache.containsKey(a)) { 3037 labelA = mLabelCache.get(a); 3038 } else { 3039 labelA = (a instanceof AppWidgetProviderInfo) ? 3040 ((AppWidgetProviderInfo) a).label : 3041 ((ResolveInfo) a).loadLabel(mPackageManager).toString(); 3042 mLabelCache.put(a, labelA); 3043 } 3044 if (mLabelCache.containsKey(b)) { 3045 labelB = mLabelCache.get(b); 3046 } else { 3047 labelB = (b instanceof AppWidgetProviderInfo) ? 3048 ((AppWidgetProviderInfo) b).label : 3049 ((ResolveInfo) b).loadLabel(mPackageManager).toString(); 3050 mLabelCache.put(b, labelB); 3051 } 3052 return mCollator.compare(labelA, labelB); 3053 } 3054 }; 3055 3056 public void dumpState() { 3057 Log.d(TAG, "mCallbacks=" + mCallbacks); 3058 ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList.data", mBgAllAppsList.data); 3059 ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList.added", mBgAllAppsList.added); 3060 ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList.removed", mBgAllAppsList.removed); 3061 ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList.modified", mBgAllAppsList.modified); 3062 if (mLoaderTask != null) { 3063 mLoaderTask.dumpState(); 3064 } else { 3065 Log.d(TAG, "mLoaderTask=null"); 3066 } 3067 } 3068} 3069