LauncherModel.java revision 997a92348a6d6e061737399321393449c16cd4d8
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 // If we can't find a valid position, then just add a new screen. 304 // This takes time so we need to re-queue the add until the new 305 // page is added. 306 LauncherAppState appState = LauncherAppState.getInstance(); 307 LauncherProvider lp = appState.getLauncherProvider(); 308 long screenId = lp.generateNewScreenId(); 309 // Update the model 310 sBgWorkspaceScreens.add(screenId); 311 updateWorkspaceScreenOrder(context, sBgWorkspaceScreens); 312 // Save the screen id for binding in the workspace 313 addedWorkspaceScreensFinal.add(screenId); 314 // Find the coordinate again 315 coords = LauncherModel.findNextAvailableIconSpace(context, 316 name, launchIntent, startSearchPageIndex); 317 } 318 if (coords == null) { 319 throw new RuntimeException("Coordinates should not be null"); 320 } 321 322 ShortcutInfo shortcutInfo; 323 if (a instanceof ShortcutInfo) { 324 shortcutInfo = (ShortcutInfo) a; 325 } else if (a instanceof ApplicationInfo) { 326 shortcutInfo = ((ApplicationInfo) a).makeShortcut(); 327 } else { 328 throw new RuntimeException("Unexpected info type"); 329 } 330 // Add the shortcut to the db 331 addItemToDatabase(context, shortcutInfo, 332 LauncherSettings.Favorites.CONTAINER_DESKTOP, 333 coords.first, coords.second[0], coords.second[1], false); 334 // Save the ShortcutInfo for binding in the workspace 335 addedShortcutsFinal.add(shortcutInfo); 336 } 337 } 338 339 if (!addedShortcutsFinal.isEmpty()) { 340 runOnMainThread(new Runnable() { 341 public void run() { 342 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 343 if (callbacks == cb && cb != null) { 344 callbacks.bindAddScreens(addedWorkspaceScreensFinal); 345 346 ItemInfo info = addedShortcutsFinal.get(addedShortcutsFinal.size() - 1); 347 long lastScreenId = info.screenId; 348 final ArrayList<ItemInfo> addAnimated = new ArrayList<ItemInfo>(); 349 final ArrayList<ItemInfo> addNotAnimated = new ArrayList<ItemInfo>(); 350 for (ItemInfo i : addedShortcutsFinal) { 351 if (i.screenId == lastScreenId) { 352 addAnimated.add(i); 353 } else { 354 addNotAnimated.add(i); 355 } 356 } 357 // We add the items without animation on non-visible pages, and with 358 // animations on the new page (which we will try and snap to). 359 if (!addNotAnimated.isEmpty()) { 360 callbacks.bindItems(addNotAnimated, 0, 361 addNotAnimated.size(), false); 362 } 363 if (!addAnimated.isEmpty()) { 364 callbacks.bindItems(addAnimated, 0, 365 addAnimated.size(), true); 366 } 367 } 368 } 369 }); 370 } 371 } 372 }; 373 runOnWorkerThread(r); 374 } 375 376 public Bitmap getFallbackIcon() { 377 return Bitmap.createBitmap(mDefaultIcon); 378 } 379 380 public void unbindItemInfosAndClearQueuedBindRunnables() { 381 if (sWorkerThread.getThreadId() == Process.myTid()) { 382 throw new RuntimeException("Expected unbindLauncherItemInfos() to be called from the " + 383 "main thread"); 384 } 385 386 // Clear any deferred bind runnables 387 mDeferredBindRunnables.clear(); 388 // Remove any queued bind runnables 389 mHandler.cancelAllRunnablesOfType(MAIN_THREAD_BINDING_RUNNABLE); 390 // Unbind all the workspace items 391 unbindWorkspaceItemsOnMainThread(); 392 } 393 394 /** Unbinds all the sBgWorkspaceItems and sBgAppWidgets on the main thread */ 395 void unbindWorkspaceItemsOnMainThread() { 396 // Ensure that we don't use the same workspace items data structure on the main thread 397 // by making a copy of workspace items first. 398 final ArrayList<ItemInfo> tmpWorkspaceItems = new ArrayList<ItemInfo>(); 399 final ArrayList<ItemInfo> tmpAppWidgets = new ArrayList<ItemInfo>(); 400 synchronized (sBgLock) { 401 tmpWorkspaceItems.addAll(sBgWorkspaceItems); 402 tmpAppWidgets.addAll(sBgAppWidgets); 403 } 404 Runnable r = new Runnable() { 405 @Override 406 public void run() { 407 for (ItemInfo item : tmpWorkspaceItems) { 408 item.unbind(); 409 } 410 for (ItemInfo item : tmpAppWidgets) { 411 item.unbind(); 412 } 413 } 414 }; 415 runOnMainThread(r); 416 } 417 418 /** 419 * Adds an item to the DB if it was not created previously, or move it to a new 420 * <container, screen, cellX, cellY> 421 */ 422 static void addOrMoveItemInDatabase(Context context, ItemInfo item, long container, 423 long screenId, int cellX, int cellY) { 424 if (item.container == ItemInfo.NO_ID) { 425 // From all apps 426 addItemToDatabase(context, item, container, screenId, cellX, cellY, false); 427 } else { 428 // From somewhere else 429 moveItemInDatabase(context, item, container, screenId, cellX, cellY); 430 } 431 } 432 433 static void checkItemInfoLocked( 434 final long itemId, final ItemInfo item, StackTraceElement[] stackTrace) { 435 ItemInfo modelItem = sBgItemsIdMap.get(itemId); 436 if (modelItem != null && item != modelItem) { 437 // check all the data is consistent 438 if (modelItem instanceof ShortcutInfo && item instanceof ShortcutInfo) { 439 ShortcutInfo modelShortcut = (ShortcutInfo) modelItem; 440 ShortcutInfo shortcut = (ShortcutInfo) item; 441 if (modelShortcut.title.toString().equals(shortcut.title.toString()) && 442 modelShortcut.intent.filterEquals(shortcut.intent) && 443 modelShortcut.id == shortcut.id && 444 modelShortcut.itemType == shortcut.itemType && 445 modelShortcut.container == shortcut.container && 446 modelShortcut.screenId == shortcut.screenId && 447 modelShortcut.cellX == shortcut.cellX && 448 modelShortcut.cellY == shortcut.cellY && 449 modelShortcut.spanX == shortcut.spanX && 450 modelShortcut.spanY == shortcut.spanY && 451 ((modelShortcut.dropPos == null && shortcut.dropPos == null) || 452 (modelShortcut.dropPos != null && 453 shortcut.dropPos != null && 454 modelShortcut.dropPos[0] == shortcut.dropPos[0] && 455 modelShortcut.dropPos[1] == shortcut.dropPos[1]))) { 456 // For all intents and purposes, this is the same object 457 return; 458 } 459 } 460 461 // the modelItem needs to match up perfectly with item if our model is 462 // to be consistent with the database-- for now, just require 463 // modelItem == item or the equality check above 464 String msg = "item: " + ((item != null) ? item.toString() : "null") + 465 "modelItem: " + 466 ((modelItem != null) ? modelItem.toString() : "null") + 467 "Error: ItemInfo passed to checkItemInfo doesn't match original"; 468 RuntimeException e = new RuntimeException(msg); 469 if (stackTrace != null) { 470 e.setStackTrace(stackTrace); 471 } 472 // TODO: something breaks this in the upgrade path 473 //throw e; 474 } 475 } 476 477 static void checkItemInfo(final ItemInfo item) { 478 final StackTraceElement[] stackTrace = new Throwable().getStackTrace(); 479 final long itemId = item.id; 480 Runnable r = new Runnable() { 481 public void run() { 482 synchronized (sBgLock) { 483 checkItemInfoLocked(itemId, item, stackTrace); 484 } 485 } 486 }; 487 runOnWorkerThread(r); 488 } 489 490 static void updateItemInDatabaseHelper(Context context, final ContentValues values, 491 final ItemInfo item, final String callingFunction) { 492 final long itemId = item.id; 493 final Uri uri = LauncherSettings.Favorites.getContentUri(itemId, false); 494 final ContentResolver cr = context.getContentResolver(); 495 496 final StackTraceElement[] stackTrace = new Throwable().getStackTrace(); 497 Runnable r = new Runnable() { 498 public void run() { 499 cr.update(uri, values, null, null); 500 updateItemArrays(item, itemId, stackTrace); 501 } 502 }; 503 runOnWorkerThread(r); 504 } 505 506 static void updateItemsInDatabaseHelper(Context context, final ArrayList<ContentValues> valuesList, 507 final ArrayList<ItemInfo> items, final String callingFunction) { 508 final ContentResolver cr = context.getContentResolver(); 509 510 final StackTraceElement[] stackTrace = new Throwable().getStackTrace(); 511 Runnable r = new Runnable() { 512 public void run() { 513 ArrayList<ContentProviderOperation> ops = 514 new ArrayList<ContentProviderOperation>(); 515 int count = items.size(); 516 for (int i = 0; i < count; i++) { 517 ItemInfo item = items.get(i); 518 final long itemId = item.id; 519 final Uri uri = LauncherSettings.Favorites.getContentUri(itemId, false); 520 ContentValues values = valuesList.get(i); 521 522 ops.add(ContentProviderOperation.newUpdate(uri).withValues(values).build()); 523 updateItemArrays(item, itemId, stackTrace); 524 525 } 526 try { 527 cr.applyBatch(LauncherProvider.AUTHORITY, ops); 528 } catch (Exception e) { 529 e.printStackTrace(); 530 } 531 } 532 }; 533 runOnWorkerThread(r); 534 } 535 536 static void updateItemArrays(ItemInfo item, long itemId, StackTraceElement[] stackTrace) { 537 // Lock on mBgLock *after* the db operation 538 synchronized (sBgLock) { 539 checkItemInfoLocked(itemId, item, stackTrace); 540 541 if (item.container != LauncherSettings.Favorites.CONTAINER_DESKTOP && 542 item.container != LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 543 // Item is in a folder, make sure this folder exists 544 if (!sBgFolders.containsKey(item.container)) { 545 // An items container is being set to a that of an item which is not in 546 // the list of Folders. 547 String msg = "item: " + item + " container being set to: " + 548 item.container + ", not in the list of folders"; 549 Log.e(TAG, msg); 550 Launcher.dumpDebugLogsToConsole(); 551 } 552 } 553 554 // Items are added/removed from the corresponding FolderInfo elsewhere, such 555 // as in Workspace.onDrop. Here, we just add/remove them from the list of items 556 // that are on the desktop, as appropriate 557 ItemInfo modelItem = sBgItemsIdMap.get(itemId); 558 if (modelItem.container == LauncherSettings.Favorites.CONTAINER_DESKTOP || 559 modelItem.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 560 switch (modelItem.itemType) { 561 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 562 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 563 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 564 if (!sBgWorkspaceItems.contains(modelItem)) { 565 sBgWorkspaceItems.add(modelItem); 566 } 567 break; 568 default: 569 break; 570 } 571 } else { 572 sBgWorkspaceItems.remove(modelItem); 573 } 574 } 575 } 576 577 public void flushWorkerThread() { 578 mFlushingWorkerThread = true; 579 Runnable waiter = new Runnable() { 580 public void run() { 581 synchronized (this) { 582 notifyAll(); 583 mFlushingWorkerThread = false; 584 } 585 } 586 }; 587 588 synchronized(waiter) { 589 runOnWorkerThread(waiter); 590 if (mLoaderTask != null) { 591 synchronized(mLoaderTask) { 592 mLoaderTask.notify(); 593 } 594 } 595 boolean success = false; 596 while (!success) { 597 try { 598 waiter.wait(); 599 success = true; 600 } catch (InterruptedException e) { 601 } 602 } 603 } 604 } 605 606 /** 607 * Move an item in the DB to a new <container, screen, cellX, cellY> 608 */ 609 static void moveItemInDatabase(Context context, final ItemInfo item, final long container, 610 final long screenId, final int cellX, final int cellY) { 611 String transaction = "DbDebug Modify item (" + item.title + ") in db, id: " + item.id + 612 " (" + item.container + ", " + item.screenId + ", " + item.cellX + ", " + item.cellY + 613 ") --> " + "(" + container + ", " + screenId + ", " + cellX + ", " + cellY + ")"; 614 Launcher.sDumpLogs.add(transaction); 615 Log.d(TAG, transaction); 616 item.container = container; 617 item.cellX = cellX; 618 item.cellY = cellY; 619 620 // We store hotseat items in canonical form which is this orientation invariant position 621 // in the hotseat 622 if (context instanceof Launcher && screenId < 0 && 623 container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 624 item.screenId = ((Launcher) context).getHotseat().getOrderInHotseat(cellX, cellY); 625 } else { 626 item.screenId = screenId; 627 } 628 629 final ContentValues values = new ContentValues(); 630 values.put(LauncherSettings.Favorites.CONTAINER, item.container); 631 values.put(LauncherSettings.Favorites.CELLX, item.cellX); 632 values.put(LauncherSettings.Favorites.CELLY, item.cellY); 633 values.put(LauncherSettings.Favorites.SCREEN, item.screenId); 634 635 updateItemInDatabaseHelper(context, values, item, "moveItemInDatabase"); 636 } 637 638 /** 639 * Move items in the DB to a new <container, screen, cellX, cellY>. We assume that the 640 * cellX, cellY have already been updated on the ItemInfos. 641 */ 642 static void moveItemsInDatabase(Context context, final ArrayList<ItemInfo> items, 643 final long container, final int screen) { 644 645 ArrayList<ContentValues> contentValues = new ArrayList<ContentValues>(); 646 int count = items.size(); 647 648 for (int i = 0; i < count; i++) { 649 ItemInfo item = items.get(i); 650 String transaction = "DbDebug Modify item (" + item.title + ") in db, id: " 651 + item.id + " (" + item.container + ", " + item.screenId + ", " + item.cellX 652 + ", " + item.cellY + ") --> " + "(" + container + ", " + screen + ", " 653 + item.cellX + ", " + item.cellY + ")"; 654 Launcher.sDumpLogs.add(transaction); 655 item.container = container; 656 657 // We store hotseat items in canonical form which is this orientation invariant position 658 // in the hotseat 659 if (context instanceof Launcher && screen < 0 && 660 container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 661 item.screenId = ((Launcher) context).getHotseat().getOrderInHotseat(item.cellX, 662 item.cellY); 663 } else { 664 item.screenId = screen; 665 } 666 667 final ContentValues values = new ContentValues(); 668 values.put(LauncherSettings.Favorites.CONTAINER, item.container); 669 values.put(LauncherSettings.Favorites.CELLX, item.cellX); 670 values.put(LauncherSettings.Favorites.CELLY, item.cellY); 671 values.put(LauncherSettings.Favorites.SCREEN, item.screenId); 672 673 contentValues.add(values); 674 } 675 updateItemsInDatabaseHelper(context, contentValues, items, "moveItemInDatabase"); 676 } 677 678 /** 679 * Move and/or resize item in the DB to a new <container, screen, cellX, cellY, spanX, spanY> 680 */ 681 static void modifyItemInDatabase(Context context, final ItemInfo item, final long container, 682 final long screenId, final int cellX, final int cellY, final int spanX, final int spanY) { 683 String transaction = "DbDebug Modify item (" + item.title + ") in db, id: " + item.id + 684 " (" + item.container + ", " + item.screenId + ", " + item.cellX + ", " + item.cellY + 685 ") --> " + "(" + container + ", " + screenId + ", " + cellX + ", " + cellY + ")"; 686 Launcher.sDumpLogs.add(transaction); 687 Log.d(TAG, transaction); 688 item.cellX = cellX; 689 item.cellY = cellY; 690 item.spanX = spanX; 691 item.spanY = spanY; 692 693 // We store hotseat items in canonical form which is this orientation invariant position 694 // in the hotseat 695 if (context instanceof Launcher && screenId < 0 && 696 container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 697 item.screenId = ((Launcher) context).getHotseat().getOrderInHotseat(cellX, cellY); 698 } else { 699 item.screenId = screenId; 700 } 701 702 final ContentValues values = new ContentValues(); 703 values.put(LauncherSettings.Favorites.CONTAINER, item.container); 704 values.put(LauncherSettings.Favorites.CELLX, item.cellX); 705 values.put(LauncherSettings.Favorites.CELLY, item.cellY); 706 values.put(LauncherSettings.Favorites.SPANX, item.spanX); 707 values.put(LauncherSettings.Favorites.SPANY, item.spanY); 708 values.put(LauncherSettings.Favorites.SCREEN, item.screenId); 709 710 updateItemInDatabaseHelper(context, values, item, "modifyItemInDatabase"); 711 } 712 713 /** 714 * Update an item to the database in a specified container. 715 */ 716 static void updateItemInDatabase(Context context, final ItemInfo item) { 717 final ContentValues values = new ContentValues(); 718 item.onAddToDatabase(values); 719 item.updateValuesWithCoordinates(values, item.cellX, item.cellY); 720 updateItemInDatabaseHelper(context, values, item, "updateItemInDatabase"); 721 } 722 723 /** 724 * Returns true if the shortcuts already exists in the database. 725 * we identify a shortcut by its title and intent. 726 */ 727 static boolean shortcutExists(Context context, String title, Intent intent) { 728 final ContentResolver cr = context.getContentResolver(); 729 Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI, 730 new String[] { "title", "intent" }, "title=? and intent=?", 731 new String[] { title, intent.toUri(0) }, null); 732 boolean result = false; 733 try { 734 result = c.moveToFirst(); 735 } finally { 736 c.close(); 737 } 738 return result; 739 } 740 741 /** 742 * Returns an ItemInfo array containing all the items in the LauncherModel. 743 * The ItemInfo.id is not set through this function. 744 */ 745 static ArrayList<ItemInfo> getItemsInLocalCoordinates(Context context) { 746 ArrayList<ItemInfo> items = new ArrayList<ItemInfo>(); 747 final ContentResolver cr = context.getContentResolver(); 748 Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI, new String[] { 749 LauncherSettings.Favorites.ITEM_TYPE, LauncherSettings.Favorites.CONTAINER, 750 LauncherSettings.Favorites.SCREEN, LauncherSettings.Favorites.CELLX, LauncherSettings.Favorites.CELLY, 751 LauncherSettings.Favorites.SPANX, LauncherSettings.Favorites.SPANY }, null, null, null); 752 753 final int itemTypeIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.ITEM_TYPE); 754 final int containerIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CONTAINER); 755 final int screenIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SCREEN); 756 final int cellXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLX); 757 final int cellYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLY); 758 final int spanXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SPANX); 759 final int spanYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SPANY); 760 761 try { 762 while (c.moveToNext()) { 763 ItemInfo item = new ItemInfo(); 764 item.cellX = c.getInt(cellXIndex); 765 item.cellY = c.getInt(cellYIndex); 766 item.spanX = c.getInt(spanXIndex); 767 item.spanY = c.getInt(spanYIndex); 768 item.container = c.getInt(containerIndex); 769 item.itemType = c.getInt(itemTypeIndex); 770 item.screenId = c.getInt(screenIndex); 771 772 items.add(item); 773 } 774 } catch (Exception e) { 775 items.clear(); 776 } finally { 777 c.close(); 778 } 779 780 return items; 781 } 782 783 /** 784 * Find a folder in the db, creating the FolderInfo if necessary, and adding it to folderList. 785 */ 786 FolderInfo getFolderById(Context context, HashMap<Long,FolderInfo> folderList, long id) { 787 final ContentResolver cr = context.getContentResolver(); 788 Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI, null, 789 "_id=? and (itemType=? or itemType=?)", 790 new String[] { String.valueOf(id), 791 String.valueOf(LauncherSettings.Favorites.ITEM_TYPE_FOLDER)}, null); 792 793 try { 794 if (c.moveToFirst()) { 795 final int itemTypeIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.ITEM_TYPE); 796 final int titleIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.TITLE); 797 final int containerIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CONTAINER); 798 final int screenIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SCREEN); 799 final int cellXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLX); 800 final int cellYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLY); 801 802 FolderInfo folderInfo = null; 803 switch (c.getInt(itemTypeIndex)) { 804 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 805 folderInfo = findOrMakeFolder(folderList, id); 806 break; 807 } 808 809 folderInfo.title = c.getString(titleIndex); 810 folderInfo.id = id; 811 folderInfo.container = c.getInt(containerIndex); 812 folderInfo.screenId = c.getInt(screenIndex); 813 folderInfo.cellX = c.getInt(cellXIndex); 814 folderInfo.cellY = c.getInt(cellYIndex); 815 816 return folderInfo; 817 } 818 } finally { 819 c.close(); 820 } 821 822 return null; 823 } 824 825 /** 826 * Add an item to the database in a specified container. Sets the container, screen, cellX and 827 * cellY fields of the item. Also assigns an ID to the item. 828 */ 829 static void addItemToDatabase(Context context, final ItemInfo item, final long container, 830 final long screenId, final int cellX, final int cellY, final boolean notify) { 831 item.container = container; 832 item.cellX = cellX; 833 item.cellY = cellY; 834 // We store hotseat items in canonical form which is this orientation invariant position 835 // in the hotseat 836 if (context instanceof Launcher && screenId < 0 && 837 container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 838 item.screenId = ((Launcher) context).getHotseat().getOrderInHotseat(cellX, cellY); 839 } else { 840 item.screenId = screenId; 841 } 842 843 final ContentValues values = new ContentValues(); 844 final ContentResolver cr = context.getContentResolver(); 845 item.onAddToDatabase(values); 846 847 LauncherAppState app = LauncherAppState.getInstance(); 848 item.id = app.getLauncherProvider().generateNewItemId(); 849 values.put(LauncherSettings.Favorites._ID, item.id); 850 item.updateValuesWithCoordinates(values, item.cellX, item.cellY); 851 852 Runnable r = new Runnable() { 853 public void run() { 854 String transaction = "DbDebug Add item (" + item.title + ") to db, id: " 855 + item.id + " (" + container + ", " + screenId + ", " + cellX + ", " 856 + cellY + ")"; 857 Launcher.sDumpLogs.add(transaction); 858 Log.d(TAG, transaction); 859 860 cr.insert(notify ? LauncherSettings.Favorites.CONTENT_URI : 861 LauncherSettings.Favorites.CONTENT_URI_NO_NOTIFICATION, values); 862 863 // Lock on mBgLock *after* the db operation 864 synchronized (sBgLock) { 865 checkItemInfoLocked(item.id, item, null); 866 sBgItemsIdMap.put(item.id, item); 867 switch (item.itemType) { 868 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 869 sBgFolders.put(item.id, (FolderInfo) item); 870 // Fall through 871 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 872 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 873 if (item.container == LauncherSettings.Favorites.CONTAINER_DESKTOP || 874 item.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 875 sBgWorkspaceItems.add(item); 876 } else { 877 if (!sBgFolders.containsKey(item.container)) { 878 // Adding an item to a folder that doesn't exist. 879 String msg = "adding item: " + item + " to a folder that " + 880 " doesn't exist"; 881 Log.e(TAG, msg); 882 Launcher.dumpDebugLogsToConsole(); 883 } 884 } 885 break; 886 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 887 sBgAppWidgets.add((LauncherAppWidgetInfo) item); 888 break; 889 } 890 } 891 } 892 }; 893 runOnWorkerThread(r); 894 } 895 896 /** 897 * Creates a new unique child id, for a given cell span across all layouts. 898 */ 899 static int getCellLayoutChildId( 900 long container, long screen, int localCellX, int localCellY, int spanX, int spanY) { 901 return (((int) container & 0xFF) << 24) 902 | ((int) screen & 0xFF) << 16 | (localCellX & 0xFF) << 8 | (localCellY & 0xFF); 903 } 904 905 static int getCellCountX() { 906 return mCellCountX; 907 } 908 909 static int getCellCountY() { 910 return mCellCountY; 911 } 912 913 /** 914 * Updates the model orientation helper to take into account the current layout dimensions 915 * when performing local/canonical coordinate transformations. 916 */ 917 static void updateWorkspaceLayoutCells(int shortAxisCellCount, int longAxisCellCount) { 918 mCellCountX = shortAxisCellCount; 919 mCellCountY = longAxisCellCount; 920 } 921 922 /** 923 * Removes the specified item from the database 924 * @param context 925 * @param item 926 */ 927 static void deleteItemFromDatabase(Context context, final ItemInfo item) { 928 final ContentResolver cr = context.getContentResolver(); 929 final Uri uriToDelete = LauncherSettings.Favorites.getContentUri(item.id, false); 930 931 Runnable r = new Runnable() { 932 public void run() { 933 String transaction = "DbDebug Delete item (" + item.title + ") from db, id: " 934 + item.id + " (" + item.container + ", " + item.screenId + ", " + item.cellX + 935 ", " + item.cellY + ")"; 936 Launcher.sDumpLogs.add(transaction); 937 Log.d(TAG, transaction); 938 939 cr.delete(uriToDelete, null, null); 940 941 // Lock on mBgLock *after* the db operation 942 synchronized (sBgLock) { 943 switch (item.itemType) { 944 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 945 sBgFolders.remove(item.id); 946 for (ItemInfo info: sBgItemsIdMap.values()) { 947 if (info.container == item.id) { 948 // We are deleting a folder which still contains items that 949 // think they are contained by that folder. 950 String msg = "deleting a folder (" + item + ") which still " + 951 "contains items (" + info + ")"; 952 Log.e(TAG, msg); 953 Launcher.dumpDebugLogsToConsole(); 954 } 955 } 956 sBgWorkspaceItems.remove(item); 957 break; 958 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 959 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 960 sBgWorkspaceItems.remove(item); 961 break; 962 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 963 sBgAppWidgets.remove((LauncherAppWidgetInfo) item); 964 break; 965 } 966 sBgItemsIdMap.remove(item.id); 967 sBgDbIconCache.remove(item); 968 } 969 } 970 }; 971 runOnWorkerThread(r); 972 } 973 974 /** 975 * Update the order of the workspace screens in the database. The array list contains 976 * a list of screen ids in the order that they should appear. 977 */ 978 void updateWorkspaceScreenOrder(Context context, final ArrayList<Long> screens) { 979 final ArrayList<Long> screensCopy = new ArrayList<Long>(screens); 980 final ContentResolver cr = context.getContentResolver(); 981 final Uri uri = LauncherSettings.WorkspaceScreens.CONTENT_URI; 982 983 // Remove any negative screen ids -- these aren't persisted 984 Iterator<Long> iter = screensCopy.iterator(); 985 while (iter.hasNext()) { 986 long id = iter.next(); 987 if (id < 0) { 988 iter.remove(); 989 } 990 } 991 992 Runnable r = new Runnable() { 993 @Override 994 public void run() { 995 // Clear the table 996 cr.delete(uri, null, null); 997 int count = screens.size(); 998 ContentValues[] values = new ContentValues[count]; 999 for (int i = 0; i < count; i++) { 1000 ContentValues v = new ContentValues(); 1001 long screenId = screens.get(i); 1002 v.put(LauncherSettings.WorkspaceScreens._ID, screenId); 1003 v.put(LauncherSettings.WorkspaceScreens.SCREEN_RANK, i); 1004 values[i] = v; 1005 } 1006 cr.bulkInsert(uri, values); 1007 sBgWorkspaceScreens.clear(); 1008 sBgWorkspaceScreens.addAll(screensCopy); 1009 } 1010 }; 1011 runOnWorkerThread(r); 1012 } 1013 1014 /** 1015 * Remove the contents of the specified folder from the database 1016 */ 1017 static void deleteFolderContentsFromDatabase(Context context, final FolderInfo info) { 1018 final ContentResolver cr = context.getContentResolver(); 1019 1020 Runnable r = new Runnable() { 1021 public void run() { 1022 cr.delete(LauncherSettings.Favorites.getContentUri(info.id, false), null, null); 1023 // Lock on mBgLock *after* the db operation 1024 synchronized (sBgLock) { 1025 sBgItemsIdMap.remove(info.id); 1026 sBgFolders.remove(info.id); 1027 sBgDbIconCache.remove(info); 1028 sBgWorkspaceItems.remove(info); 1029 } 1030 1031 cr.delete(LauncherSettings.Favorites.CONTENT_URI_NO_NOTIFICATION, 1032 LauncherSettings.Favorites.CONTAINER + "=" + info.id, null); 1033 // Lock on mBgLock *after* the db operation 1034 synchronized (sBgLock) { 1035 for (ItemInfo childInfo : info.contents) { 1036 sBgItemsIdMap.remove(childInfo.id); 1037 sBgDbIconCache.remove(childInfo); 1038 } 1039 } 1040 } 1041 }; 1042 runOnWorkerThread(r); 1043 } 1044 1045 /** 1046 * Set this as the current Launcher activity object for the loader. 1047 */ 1048 public void initialize(Callbacks callbacks) { 1049 synchronized (mLock) { 1050 mCallbacks = new WeakReference<Callbacks>(callbacks); 1051 } 1052 } 1053 1054 /** 1055 * Call from the handler for ACTION_PACKAGE_ADDED, ACTION_PACKAGE_REMOVED and 1056 * ACTION_PACKAGE_CHANGED. 1057 */ 1058 @Override 1059 public void onReceive(Context context, Intent intent) { 1060 if (DEBUG_LOADERS) Log.d(TAG, "onReceive intent=" + intent); 1061 1062 final String action = intent.getAction(); 1063 1064 if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 1065 || Intent.ACTION_PACKAGE_REMOVED.equals(action) 1066 || Intent.ACTION_PACKAGE_ADDED.equals(action)) { 1067 final String packageName = intent.getData().getSchemeSpecificPart(); 1068 final boolean replacing = intent.getBooleanExtra(Intent.EXTRA_REPLACING, false); 1069 1070 int op = PackageUpdatedTask.OP_NONE; 1071 1072 if (packageName == null || packageName.length() == 0) { 1073 // they sent us a bad intent 1074 return; 1075 } 1076 1077 if (Intent.ACTION_PACKAGE_CHANGED.equals(action)) { 1078 op = PackageUpdatedTask.OP_UPDATE; 1079 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action)) { 1080 if (!replacing) { 1081 op = PackageUpdatedTask.OP_REMOVE; 1082 } 1083 // else, we are replacing the package, so a PACKAGE_ADDED will be sent 1084 // later, we will update the package at this time 1085 } else if (Intent.ACTION_PACKAGE_ADDED.equals(action)) { 1086 if (!replacing) { 1087 op = PackageUpdatedTask.OP_ADD; 1088 } else { 1089 op = PackageUpdatedTask.OP_UPDATE; 1090 } 1091 } 1092 1093 if (op != PackageUpdatedTask.OP_NONE) { 1094 enqueuePackageUpdated(new PackageUpdatedTask(op, new String[] { packageName })); 1095 } 1096 1097 } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE.equals(action)) { 1098 // First, schedule to add these apps back in. 1099 String[] packages = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST); 1100 enqueuePackageUpdated(new PackageUpdatedTask(PackageUpdatedTask.OP_ADD, packages)); 1101 // Then, rebind everything. 1102 startLoaderFromBackground(); 1103 } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 1104 String[] packages = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST); 1105 enqueuePackageUpdated(new PackageUpdatedTask( 1106 PackageUpdatedTask.OP_UNAVAILABLE, packages)); 1107 } else if (Intent.ACTION_LOCALE_CHANGED.equals(action)) { 1108 // If we have changed locale we need to clear out the labels in all apps/workspace. 1109 forceReload(); 1110 } else if (Intent.ACTION_CONFIGURATION_CHANGED.equals(action)) { 1111 // Check if configuration change was an mcc/mnc change which would affect app resources 1112 // and we would need to clear out the labels in all apps/workspace. Same handling as 1113 // above for ACTION_LOCALE_CHANGED 1114 Configuration currentConfig = context.getResources().getConfiguration(); 1115 if (mPreviousConfigMcc != currentConfig.mcc) { 1116 Log.d(TAG, "Reload apps on config change. curr_mcc:" 1117 + currentConfig.mcc + " prevmcc:" + mPreviousConfigMcc); 1118 forceReload(); 1119 } 1120 // Update previousConfig 1121 mPreviousConfigMcc = currentConfig.mcc; 1122 } else if (SearchManager.INTENT_GLOBAL_SEARCH_ACTIVITY_CHANGED.equals(action) || 1123 SearchManager.INTENT_ACTION_SEARCHABLES_CHANGED.equals(action)) { 1124 if (mCallbacks != null) { 1125 Callbacks callbacks = mCallbacks.get(); 1126 if (callbacks != null) { 1127 callbacks.bindSearchablesChanged(); 1128 } 1129 } 1130 } 1131 } 1132 1133 private void forceReload() { 1134 resetLoadedState(true, true); 1135 1136 // Do this here because if the launcher activity is running it will be restarted. 1137 // If it's not running startLoaderFromBackground will merely tell it that it needs 1138 // to reload. 1139 startLoaderFromBackground(); 1140 } 1141 1142 public void resetLoadedState(boolean resetAllAppsLoaded, boolean resetWorkspaceLoaded) { 1143 synchronized (mLock) { 1144 // Stop any existing loaders first, so they don't set mAllAppsLoaded or 1145 // mWorkspaceLoaded to true later 1146 stopLoaderLocked(); 1147 if (resetAllAppsLoaded) mAllAppsLoaded = false; 1148 if (resetWorkspaceLoaded) mWorkspaceLoaded = false; 1149 } 1150 } 1151 1152 /** 1153 * When the launcher is in the background, it's possible for it to miss paired 1154 * configuration changes. So whenever we trigger the loader from the background 1155 * tell the launcher that it needs to re-run the loader when it comes back instead 1156 * of doing it now. 1157 */ 1158 public void startLoaderFromBackground() { 1159 boolean runLoader = false; 1160 if (mCallbacks != null) { 1161 Callbacks callbacks = mCallbacks.get(); 1162 if (callbacks != null) { 1163 // Only actually run the loader if they're not paused. 1164 if (!callbacks.setLoadOnResume()) { 1165 runLoader = true; 1166 } 1167 } 1168 } 1169 if (runLoader) { 1170 startLoader(false, -1); 1171 } 1172 } 1173 1174 // If there is already a loader task running, tell it to stop. 1175 // returns true if isLaunching() was true on the old task 1176 private boolean stopLoaderLocked() { 1177 boolean isLaunching = false; 1178 LoaderTask oldTask = mLoaderTask; 1179 if (oldTask != null) { 1180 if (oldTask.isLaunching()) { 1181 isLaunching = true; 1182 } 1183 oldTask.stopLocked(); 1184 } 1185 return isLaunching; 1186 } 1187 1188 public void startLoader(boolean isLaunching, int synchronousBindPage) { 1189 synchronized (mLock) { 1190 if (DEBUG_LOADERS) { 1191 Log.d(TAG, "startLoader isLaunching=" + isLaunching); 1192 } 1193 1194 // Clear any deferred bind-runnables from the synchronized load process 1195 // We must do this before any loading/binding is scheduled below. 1196 mDeferredBindRunnables.clear(); 1197 1198 // Don't bother to start the thread if we know it's not going to do anything 1199 if (mCallbacks != null && mCallbacks.get() != null) { 1200 // If there is already one running, tell it to stop. 1201 // also, don't downgrade isLaunching if we're already running 1202 isLaunching = isLaunching || stopLoaderLocked(); 1203 mLoaderTask = new LoaderTask(mApp.getContext(), isLaunching); 1204 if (synchronousBindPage > -1 && mAllAppsLoaded && mWorkspaceLoaded) { 1205 mLoaderTask.runBindSynchronousPage(synchronousBindPage); 1206 } else { 1207 sWorkerThread.setPriority(Thread.NORM_PRIORITY); 1208 sWorker.post(mLoaderTask); 1209 } 1210 } 1211 } 1212 } 1213 1214 void bindRemainingSynchronousPages() { 1215 // Post the remaining side pages to be loaded 1216 if (!mDeferredBindRunnables.isEmpty()) { 1217 for (final Runnable r : mDeferredBindRunnables) { 1218 mHandler.post(r, MAIN_THREAD_BINDING_RUNNABLE); 1219 } 1220 mDeferredBindRunnables.clear(); 1221 } 1222 } 1223 1224 public void stopLoader() { 1225 synchronized (mLock) { 1226 if (mLoaderTask != null) { 1227 mLoaderTask.stopLocked(); 1228 } 1229 } 1230 } 1231 1232 public boolean isAllAppsLoaded() { 1233 return mAllAppsLoaded; 1234 } 1235 1236 boolean isLoadingWorkspace() { 1237 synchronized (mLock) { 1238 if (mLoaderTask != null) { 1239 return mLoaderTask.isLoadingWorkspace(); 1240 } 1241 } 1242 return false; 1243 } 1244 1245 /** 1246 * Runnable for the thread that loads the contents of the launcher: 1247 * - workspace icons 1248 * - widgets 1249 * - all apps icons 1250 */ 1251 private class LoaderTask implements Runnable { 1252 private Context mContext; 1253 private boolean mIsLaunching; 1254 private boolean mIsLoadingAndBindingWorkspace; 1255 private boolean mStopped; 1256 private boolean mLoadAndBindStepFinished; 1257 private boolean mIsUpgradePath; 1258 1259 private HashMap<Object, CharSequence> mLabelCache; 1260 1261 LoaderTask(Context context, boolean isLaunching) { 1262 mContext = context; 1263 mIsLaunching = isLaunching; 1264 mLabelCache = new HashMap<Object, CharSequence>(); 1265 } 1266 1267 boolean isLaunching() { 1268 return mIsLaunching; 1269 } 1270 1271 boolean isLoadingWorkspace() { 1272 return mIsLoadingAndBindingWorkspace; 1273 } 1274 1275 private void loadAndBindWorkspace() { 1276 mIsLoadingAndBindingWorkspace = true; 1277 1278 // Load the workspace 1279 if (DEBUG_LOADERS) { 1280 Log.d(TAG, "loadAndBindWorkspace mWorkspaceLoaded=" + mWorkspaceLoaded); 1281 } 1282 1283 if (!mWorkspaceLoaded) { 1284 loadWorkspace(); 1285 synchronized (LoaderTask.this) { 1286 if (mStopped) { 1287 return; 1288 } 1289 mWorkspaceLoaded = true; 1290 } 1291 } 1292 1293 // Bind the workspace 1294 bindWorkspace(-1); 1295 } 1296 1297 private void waitForIdle() { 1298 // Wait until the either we're stopped or the other threads are done. 1299 // This way we don't start loading all apps until the workspace has settled 1300 // down. 1301 synchronized (LoaderTask.this) { 1302 final long workspaceWaitTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 1303 1304 mHandler.postIdle(new Runnable() { 1305 public void run() { 1306 synchronized (LoaderTask.this) { 1307 mLoadAndBindStepFinished = true; 1308 if (DEBUG_LOADERS) { 1309 Log.d(TAG, "done with previous binding step"); 1310 } 1311 LoaderTask.this.notify(); 1312 } 1313 } 1314 }); 1315 1316 while (!mStopped && !mLoadAndBindStepFinished && !mFlushingWorkerThread) { 1317 try { 1318 // Just in case mFlushingWorkerThread changes but we aren't woken up, 1319 // wait no longer than 1sec at a time 1320 this.wait(1000); 1321 } catch (InterruptedException ex) { 1322 // Ignore 1323 } 1324 } 1325 if (DEBUG_LOADERS) { 1326 Log.d(TAG, "waited " 1327 + (SystemClock.uptimeMillis()-workspaceWaitTime) 1328 + "ms for previous step to finish binding"); 1329 } 1330 } 1331 } 1332 1333 void runBindSynchronousPage(int synchronousBindPage) { 1334 if (synchronousBindPage < 0) { 1335 // Ensure that we have a valid page index to load synchronously 1336 throw new RuntimeException("Should not call runBindSynchronousPage() without " + 1337 "valid page index"); 1338 } 1339 if (!mAllAppsLoaded || !mWorkspaceLoaded) { 1340 // Ensure that we don't try and bind a specified page when the pages have not been 1341 // loaded already (we should load everything asynchronously in that case) 1342 throw new RuntimeException("Expecting AllApps and Workspace to be loaded"); 1343 } 1344 synchronized (mLock) { 1345 if (mIsLoaderTaskRunning) { 1346 // Ensure that we are never running the background loading at this point since 1347 // we also touch the background collections 1348 throw new RuntimeException("Error! Background loading is already running"); 1349 } 1350 } 1351 1352 // XXX: Throw an exception if we are already loading (since we touch the worker thread 1353 // data structures, we can't allow any other thread to touch that data, but because 1354 // this call is synchronous, we can get away with not locking). 1355 1356 // The LauncherModel is static in the LauncherAppState and mHandler may have queued 1357 // operations from the previous activity. We need to ensure that all queued operations 1358 // are executed before any synchronous binding work is done. 1359 mHandler.flush(); 1360 1361 // Divide the set of loaded items into those that we are binding synchronously, and 1362 // everything else that is to be bound normally (asynchronously). 1363 bindWorkspace(synchronousBindPage); 1364 // XXX: For now, continue posting the binding of AllApps as there are other issues that 1365 // arise from that. 1366 onlyBindAllApps(); 1367 } 1368 1369 public void run() { 1370 synchronized (mLock) { 1371 mIsLoaderTaskRunning = true; 1372 } 1373 // Optimize for end-user experience: if the Launcher is up and // running with the 1374 // All Apps interface in the foreground, load All Apps first. Otherwise, load the 1375 // workspace first (default). 1376 final Callbacks cbk = mCallbacks.get(); 1377 keep_running: { 1378 // Elevate priority when Home launches for the first time to avoid 1379 // starving at boot time. Staring at a blank home is not cool. 1380 synchronized (mLock) { 1381 if (DEBUG_LOADERS) Log.d(TAG, "Setting thread priority to " + 1382 (mIsLaunching ? "DEFAULT" : "BACKGROUND")); 1383 android.os.Process.setThreadPriority(mIsLaunching 1384 ? Process.THREAD_PRIORITY_DEFAULT : Process.THREAD_PRIORITY_BACKGROUND); 1385 } 1386 if (DEBUG_LOADERS) Log.d(TAG, "step 1: loading workspace"); 1387 loadAndBindWorkspace(); 1388 1389 if (mStopped) { 1390 break keep_running; 1391 } 1392 1393 // Whew! Hard work done. Slow us down, and wait until the UI thread has 1394 // settled down. 1395 synchronized (mLock) { 1396 if (mIsLaunching) { 1397 if (DEBUG_LOADERS) Log.d(TAG, "Setting thread priority to BACKGROUND"); 1398 android.os.Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 1399 } 1400 } 1401 waitForIdle(); 1402 1403 // second step 1404 if (DEBUG_LOADERS) Log.d(TAG, "step 2: loading all apps"); 1405 loadAndBindAllApps(); 1406 1407 // Restore the default thread priority after we are done loading items 1408 synchronized (mLock) { 1409 android.os.Process.setThreadPriority(Process.THREAD_PRIORITY_DEFAULT); 1410 } 1411 } 1412 1413 // Update the saved icons if necessary 1414 if (DEBUG_LOADERS) Log.d(TAG, "Comparing loaded icons to database icons"); 1415 synchronized (sBgLock) { 1416 for (Object key : sBgDbIconCache.keySet()) { 1417 updateSavedIcon(mContext, (ShortcutInfo) key, sBgDbIconCache.get(key)); 1418 } 1419 sBgDbIconCache.clear(); 1420 } 1421 1422 // Clear out this reference, otherwise we end up holding it until all of the 1423 // callback runnables are done. 1424 mContext = null; 1425 1426 synchronized (mLock) { 1427 // If we are still the last one to be scheduled, remove ourselves. 1428 if (mLoaderTask == this) { 1429 mLoaderTask = null; 1430 } 1431 mIsLoaderTaskRunning = false; 1432 } 1433 } 1434 1435 public void stopLocked() { 1436 synchronized (LoaderTask.this) { 1437 mStopped = true; 1438 this.notify(); 1439 } 1440 } 1441 1442 /** 1443 * Gets the callbacks object. If we've been stopped, or if the launcher object 1444 * has somehow been garbage collected, return null instead. Pass in the Callbacks 1445 * object that was around when the deferred message was scheduled, and if there's 1446 * a new Callbacks object around then also return null. This will save us from 1447 * calling onto it with data that will be ignored. 1448 */ 1449 Callbacks tryGetCallbacks(Callbacks oldCallbacks) { 1450 synchronized (mLock) { 1451 if (mStopped) { 1452 return null; 1453 } 1454 1455 if (mCallbacks == null) { 1456 return null; 1457 } 1458 1459 final Callbacks callbacks = mCallbacks.get(); 1460 if (callbacks != oldCallbacks) { 1461 return null; 1462 } 1463 if (callbacks == null) { 1464 Log.w(TAG, "no mCallbacks"); 1465 return null; 1466 } 1467 1468 return callbacks; 1469 } 1470 } 1471 1472 // check & update map of what's occupied; used to discard overlapping/invalid items 1473 private boolean checkItemPlacement(HashMap<Long, ItemInfo[][]> occupied, ItemInfo item) { 1474 long containerIndex = item.screenId; 1475 if (item.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 1476 if (occupied.containsKey(LauncherSettings.Favorites.CONTAINER_HOTSEAT)) { 1477 if (occupied.get(LauncherSettings.Favorites.CONTAINER_HOTSEAT) 1478 [(int) item.screenId][0] != null) { 1479 Log.e(TAG, "Error loading shortcut into hotseat " + item 1480 + " into position (" + item.screenId + ":" + item.cellX + "," 1481 + item.cellY + ") occupied by " 1482 + occupied.get(LauncherSettings.Favorites.CONTAINER_HOTSEAT) 1483 [(int) item.screenId][0]); 1484 return false; 1485 } 1486 } else { 1487 ItemInfo[][] items = new ItemInfo[mCellCountX + 1][mCellCountY + 1]; 1488 items[(int) item.screenId][0] = item; 1489 occupied.put((long) LauncherSettings.Favorites.CONTAINER_HOTSEAT, items); 1490 return true; 1491 } 1492 } else if (item.container != LauncherSettings.Favorites.CONTAINER_DESKTOP) { 1493 // Skip further checking if it is not the hotseat or workspace container 1494 return true; 1495 } 1496 1497 if (!occupied.containsKey(item.screenId)) { 1498 ItemInfo[][] items = new ItemInfo[mCellCountX + 1][mCellCountY + 1]; 1499 occupied.put(item.screenId, items); 1500 } 1501 1502 ItemInfo[][] screens = occupied.get(item.screenId); 1503 // Check if any workspace icons overlap with each other 1504 for (int x = item.cellX; x < (item.cellX+item.spanX); x++) { 1505 for (int y = item.cellY; y < (item.cellY+item.spanY); y++) { 1506 if (screens[x][y] != null) { 1507 Log.e(TAG, "Error loading shortcut " + item 1508 + " into cell (" + containerIndex + "-" + item.screenId + ":" 1509 + x + "," + y 1510 + ") occupied by " 1511 + screens[x][y]); 1512 return false; 1513 } 1514 } 1515 } 1516 for (int x = item.cellX; x < (item.cellX+item.spanX); x++) { 1517 for (int y = item.cellY; y < (item.cellY+item.spanY); y++) { 1518 screens[x][y] = item; 1519 } 1520 } 1521 1522 return true; 1523 } 1524 1525 private void loadWorkspace() { 1526 final long t = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 1527 1528 final Context context = mContext; 1529 final ContentResolver contentResolver = context.getContentResolver(); 1530 final PackageManager manager = context.getPackageManager(); 1531 final AppWidgetManager widgets = AppWidgetManager.getInstance(context); 1532 final boolean isSafeMode = manager.isSafeMode(); 1533 1534 // Make sure the default workspace is loaded, if needed 1535 boolean loadOldDb = mApp.getLauncherProvider().shouldLoadOldDb(); 1536 Uri contentUri = loadOldDb ? LauncherSettings.Favorites.OLD_CONTENT_URI : 1537 LauncherSettings.Favorites.CONTENT_URI; 1538 1539 mIsUpgradePath = loadOldDb; 1540 1541 synchronized (sBgLock) { 1542 sBgWorkspaceItems.clear(); 1543 sBgAppWidgets.clear(); 1544 sBgFolders.clear(); 1545 sBgItemsIdMap.clear(); 1546 sBgDbIconCache.clear(); 1547 sBgWorkspaceScreens.clear(); 1548 1549 final ArrayList<Long> itemsToRemove = new ArrayList<Long>(); 1550 1551 final Cursor c = contentResolver.query(contentUri, null, null, null, null); 1552 1553 // +1 for the hotseat (it can be larger than the workspace) 1554 // Load workspace in reverse order to ensure that latest items are loaded first (and 1555 // before any earlier duplicates) 1556 final HashMap<Long, ItemInfo[][]> occupied = new HashMap<Long, ItemInfo[][]>(); 1557 1558 try { 1559 final int idIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites._ID); 1560 final int intentIndex = c.getColumnIndexOrThrow 1561 (LauncherSettings.Favorites.INTENT); 1562 final int titleIndex = c.getColumnIndexOrThrow 1563 (LauncherSettings.Favorites.TITLE); 1564 final int iconTypeIndex = c.getColumnIndexOrThrow( 1565 LauncherSettings.Favorites.ICON_TYPE); 1566 final int iconIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.ICON); 1567 final int iconPackageIndex = c.getColumnIndexOrThrow( 1568 LauncherSettings.Favorites.ICON_PACKAGE); 1569 final int iconResourceIndex = c.getColumnIndexOrThrow( 1570 LauncherSettings.Favorites.ICON_RESOURCE); 1571 final int containerIndex = c.getColumnIndexOrThrow( 1572 LauncherSettings.Favorites.CONTAINER); 1573 final int itemTypeIndex = c.getColumnIndexOrThrow( 1574 LauncherSettings.Favorites.ITEM_TYPE); 1575 final int appWidgetIdIndex = c.getColumnIndexOrThrow( 1576 LauncherSettings.Favorites.APPWIDGET_ID); 1577 final int screenIndex = c.getColumnIndexOrThrow( 1578 LauncherSettings.Favorites.SCREEN); 1579 final int cellXIndex = c.getColumnIndexOrThrow 1580 (LauncherSettings.Favorites.CELLX); 1581 final int cellYIndex = c.getColumnIndexOrThrow 1582 (LauncherSettings.Favorites.CELLY); 1583 final int spanXIndex = c.getColumnIndexOrThrow 1584 (LauncherSettings.Favorites.SPANX); 1585 final int spanYIndex = c.getColumnIndexOrThrow( 1586 LauncherSettings.Favorites.SPANY); 1587 //final int uriIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.URI); 1588 //final int displayModeIndex = c.getColumnIndexOrThrow( 1589 // LauncherSettings.Favorites.DISPLAY_MODE); 1590 1591 ShortcutInfo info; 1592 String intentDescription; 1593 LauncherAppWidgetInfo appWidgetInfo; 1594 int container; 1595 long id; 1596 Intent intent; 1597 1598 while (!mStopped && c.moveToNext()) { 1599 try { 1600 int itemType = c.getInt(itemTypeIndex); 1601 1602 switch (itemType) { 1603 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 1604 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 1605 intentDescription = c.getString(intentIndex); 1606 try { 1607 intent = Intent.parseUri(intentDescription, 0); 1608 } catch (URISyntaxException e) { 1609 continue; 1610 } 1611 1612 if (itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION) { 1613 info = getShortcutInfo(manager, intent, context, c, iconIndex, 1614 titleIndex, mLabelCache); 1615 } else { 1616 info = getShortcutInfo(c, context, iconTypeIndex, 1617 iconPackageIndex, iconResourceIndex, iconIndex, 1618 titleIndex); 1619 1620 // App shortcuts that used to be automatically added to Launcher 1621 // didn't always have the correct intent flags set, so do that 1622 // here 1623 if (intent.getAction() != null && 1624 intent.getCategories() != null && 1625 intent.getAction().equals(Intent.ACTION_MAIN) && 1626 intent.getCategories().contains(Intent.CATEGORY_LAUNCHER)) { 1627 intent.addFlags( 1628 Intent.FLAG_ACTIVITY_NEW_TASK | 1629 Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED); 1630 } 1631 } 1632 1633 if (info != null) { 1634 info.intent = intent; 1635 info.id = c.getLong(idIndex); 1636 container = c.getInt(containerIndex); 1637 info.container = container; 1638 info.screenId = c.getInt(screenIndex); 1639 info.cellX = c.getInt(cellXIndex); 1640 info.cellY = c.getInt(cellYIndex); 1641 // check & update map of what's occupied 1642 if (!checkItemPlacement(occupied, info)) { 1643 break; 1644 } 1645 1646 switch (container) { 1647 case LauncherSettings.Favorites.CONTAINER_DESKTOP: 1648 case LauncherSettings.Favorites.CONTAINER_HOTSEAT: 1649 sBgWorkspaceItems.add(info); 1650 break; 1651 default: 1652 // Item is in a user folder 1653 FolderInfo folderInfo = 1654 findOrMakeFolder(sBgFolders, container); 1655 folderInfo.add(info); 1656 break; 1657 } 1658 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 1659 loadOldDb) { 1660 info.screenId = permuteScreens(info.screenId); 1661 } 1662 sBgItemsIdMap.put(info.id, info); 1663 1664 // now that we've loaded everthing re-save it with the 1665 // icon in case it disappears somehow. 1666 queueIconToBeChecked(sBgDbIconCache, info, c, iconIndex); 1667 } else { 1668 // Failed to load the shortcut, probably because the 1669 // activity manager couldn't resolve it (maybe the app 1670 // was uninstalled), or the db row was somehow screwed up. 1671 // Delete it. 1672 id = c.getLong(idIndex); 1673 Log.e(TAG, "Error loading shortcut " + id + ", removing it"); 1674 contentResolver.delete(LauncherSettings.Favorites.getContentUri( 1675 id, false), null, null); 1676 } 1677 break; 1678 1679 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 1680 id = c.getLong(idIndex); 1681 FolderInfo folderInfo = findOrMakeFolder(sBgFolders, id); 1682 1683 folderInfo.title = c.getString(titleIndex); 1684 folderInfo.id = id; 1685 container = c.getInt(containerIndex); 1686 folderInfo.container = container; 1687 folderInfo.screenId = c.getInt(screenIndex); 1688 folderInfo.cellX = c.getInt(cellXIndex); 1689 folderInfo.cellY = c.getInt(cellYIndex); 1690 1691 // check & update map of what's occupied 1692 if (!checkItemPlacement(occupied, folderInfo)) { 1693 break; 1694 } 1695 switch (container) { 1696 case LauncherSettings.Favorites.CONTAINER_DESKTOP: 1697 case LauncherSettings.Favorites.CONTAINER_HOTSEAT: 1698 sBgWorkspaceItems.add(folderInfo); 1699 break; 1700 } 1701 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 1702 loadOldDb) { 1703 folderInfo.screenId = permuteScreens(folderInfo.screenId); 1704 } 1705 1706 sBgItemsIdMap.put(folderInfo.id, folderInfo); 1707 sBgFolders.put(folderInfo.id, folderInfo); 1708 break; 1709 1710 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 1711 // Read all Launcher-specific widget details 1712 int appWidgetId = c.getInt(appWidgetIdIndex); 1713 id = c.getLong(idIndex); 1714 1715 final AppWidgetProviderInfo provider = 1716 widgets.getAppWidgetInfo(appWidgetId); 1717 1718 if (!isSafeMode && (provider == null || provider.provider == null || 1719 provider.provider.getPackageName() == null)) { 1720 String log = "Deleting widget that isn't installed anymore: id=" 1721 + id + " appWidgetId=" + appWidgetId; 1722 Log.e(TAG, log); 1723 Launcher.sDumpLogs.add(log); 1724 itemsToRemove.add(id); 1725 } else { 1726 appWidgetInfo = new LauncherAppWidgetInfo(appWidgetId, 1727 provider.provider); 1728 appWidgetInfo.id = id; 1729 appWidgetInfo.screenId = c.getInt(screenIndex); 1730 appWidgetInfo.cellX = c.getInt(cellXIndex); 1731 appWidgetInfo.cellY = c.getInt(cellYIndex); 1732 appWidgetInfo.spanX = c.getInt(spanXIndex); 1733 appWidgetInfo.spanY = c.getInt(spanYIndex); 1734 int[] minSpan = Launcher.getMinSpanForWidget(context, provider); 1735 appWidgetInfo.minSpanX = minSpan[0]; 1736 appWidgetInfo.minSpanY = minSpan[1]; 1737 1738 container = c.getInt(containerIndex); 1739 if (container != LauncherSettings.Favorites.CONTAINER_DESKTOP && 1740 container != LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 1741 Log.e(TAG, "Widget found where container != " + 1742 "CONTAINER_DESKTOP nor CONTAINER_HOTSEAT - ignoring!"); 1743 continue; 1744 } 1745 if (container != LauncherSettings.Favorites.CONTAINER_HOTSEAT && 1746 loadOldDb) { 1747 appWidgetInfo.screenId = 1748 permuteScreens(appWidgetInfo.screenId); 1749 } 1750 1751 appWidgetInfo.container = c.getInt(containerIndex); 1752 // check & update map of what's occupied 1753 if (!checkItemPlacement(occupied, appWidgetInfo)) { 1754 break; 1755 } 1756 sBgItemsIdMap.put(appWidgetInfo.id, appWidgetInfo); 1757 sBgAppWidgets.add(appWidgetInfo); 1758 } 1759 break; 1760 } 1761 } catch (Exception e) { 1762 Log.w(TAG, "Desktop items loading interrupted:", e); 1763 } 1764 } 1765 } finally { 1766 c.close(); 1767 } 1768 1769 if (itemsToRemove.size() > 0) { 1770 ContentProviderClient client = contentResolver.acquireContentProviderClient( 1771 LauncherSettings.Favorites.CONTENT_URI); 1772 // Remove dead items 1773 for (long id : itemsToRemove) { 1774 if (DEBUG_LOADERS) { 1775 Log.d(TAG, "Removed id = " + id); 1776 } 1777 // Don't notify content observers 1778 try { 1779 client.delete(LauncherSettings.Favorites.getContentUri(id, false), 1780 null, null); 1781 } catch (RemoteException e) { 1782 Log.w(TAG, "Could not remove id = " + id); 1783 } 1784 } 1785 } 1786 1787 if (loadOldDb) { 1788 long maxScreenId = 0; 1789 // If we're importing we use the old screen order. 1790 for (ItemInfo item: sBgItemsIdMap.values()) { 1791 long screenId = item.screenId; 1792 if (item.container == LauncherSettings.Favorites.CONTAINER_DESKTOP && 1793 !sBgWorkspaceScreens.contains(screenId)) { 1794 sBgWorkspaceScreens.add(screenId); 1795 if (screenId > maxScreenId) { 1796 maxScreenId = screenId; 1797 } 1798 } 1799 } 1800 Collections.sort(sBgWorkspaceScreens); 1801 mApp.getLauncherProvider().updateMaxScreenId(maxScreenId); 1802 updateWorkspaceScreenOrder(context, sBgWorkspaceScreens); 1803 } else { 1804 Uri screensUri = LauncherSettings.WorkspaceScreens.CONTENT_URI; 1805 final Cursor sc = contentResolver.query(screensUri, null, null, null, null); 1806 TreeMap<Integer, Long> orderedScreens = new TreeMap<Integer, Long>(); 1807 1808 try { 1809 final int idIndex = sc.getColumnIndexOrThrow( 1810 LauncherSettings.WorkspaceScreens._ID); 1811 final int rankIndex = sc.getColumnIndexOrThrow( 1812 LauncherSettings.WorkspaceScreens.SCREEN_RANK); 1813 while (sc.moveToNext()) { 1814 try { 1815 long screenId = sc.getLong(idIndex); 1816 int rank = sc.getInt(rankIndex); 1817 1818 orderedScreens.put(rank, screenId); 1819 } catch (Exception e) { 1820 Log.w(TAG, "Desktop items loading interrupted:", e); 1821 } 1822 } 1823 } finally { 1824 sc.close(); 1825 } 1826 1827 Iterator<Integer> iter = orderedScreens.keySet().iterator(); 1828 while (iter.hasNext()) { 1829 sBgWorkspaceScreens.add(orderedScreens.get(iter.next())); 1830 } 1831 1832 // Remove any empty screens 1833 ArrayList<Long> unusedScreens = new ArrayList<Long>(); 1834 unusedScreens.addAll(sBgWorkspaceScreens); 1835 1836 for (ItemInfo item: sBgItemsIdMap.values()) { 1837 long screenId = item.screenId; 1838 1839 if (item.container == LauncherSettings.Favorites.CONTAINER_DESKTOP && 1840 unusedScreens.contains(screenId)) { 1841 unusedScreens.remove(screenId); 1842 } 1843 } 1844 1845 // If there are any empty screens remove them, and update. 1846 if (unusedScreens.size() != 0) { 1847 sBgWorkspaceScreens.removeAll(unusedScreens); 1848 updateWorkspaceScreenOrder(context, sBgWorkspaceScreens); 1849 } 1850 } 1851 1852 if (DEBUG_LOADERS) { 1853 Log.d(TAG, "loaded workspace in " + (SystemClock.uptimeMillis()-t) + "ms"); 1854 Log.d(TAG, "workspace layout: "); 1855 int nScreens = occupied.size(); 1856 for (int y = 0; y < mCellCountY; y++) { 1857 String line = ""; 1858 1859 Iterator<Long> iter = occupied.keySet().iterator(); 1860 while (iter.hasNext()) { 1861 long screenId = iter.next(); 1862 if (screenId > 0) { 1863 line += " | "; 1864 } 1865 for (int x = 0; x < mCellCountX; x++) { 1866 line += ((occupied.get(screenId)[x][y] != null) ? "#" : "."); 1867 } 1868 } 1869 Log.d(TAG, "[ " + line + " ]"); 1870 } 1871 } 1872 } 1873 } 1874 1875 // We rearrange the screens from the old launcher 1876 // 12345 -> 34512 1877 private long permuteScreens(long screen) { 1878 if (screen >= 2) { 1879 return screen - 2; 1880 } else { 1881 return screen + 3; 1882 } 1883 } 1884 1885 /** Filters the set of items who are directly or indirectly (via another container) on the 1886 * specified screen. */ 1887 private void filterCurrentWorkspaceItems(int currentScreen, 1888 ArrayList<ItemInfo> allWorkspaceItems, 1889 ArrayList<ItemInfo> currentScreenItems, 1890 ArrayList<ItemInfo> otherScreenItems) { 1891 // Purge any null ItemInfos 1892 Iterator<ItemInfo> iter = allWorkspaceItems.iterator(); 1893 while (iter.hasNext()) { 1894 ItemInfo i = iter.next(); 1895 if (i == null) { 1896 iter.remove(); 1897 } 1898 } 1899 1900 // If we aren't filtering on a screen, then the set of items to load is the full set of 1901 // items given. 1902 if (currentScreen < 0) { 1903 currentScreenItems.addAll(allWorkspaceItems); 1904 } 1905 1906 // Order the set of items by their containers first, this allows use to walk through the 1907 // list sequentially, build up a list of containers that are in the specified screen, 1908 // as well as all items in those containers. 1909 Set<Long> itemsOnScreen = new HashSet<Long>(); 1910 Collections.sort(allWorkspaceItems, new Comparator<ItemInfo>() { 1911 @Override 1912 public int compare(ItemInfo lhs, ItemInfo rhs) { 1913 return (int) (lhs.container - rhs.container); 1914 } 1915 }); 1916 for (ItemInfo info : allWorkspaceItems) { 1917 if (info.container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 1918 if (info.screenId == currentScreen) { 1919 currentScreenItems.add(info); 1920 itemsOnScreen.add(info.id); 1921 } else { 1922 otherScreenItems.add(info); 1923 } 1924 } else if (info.container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { 1925 currentScreenItems.add(info); 1926 itemsOnScreen.add(info.id); 1927 } else { 1928 if (itemsOnScreen.contains(info.container)) { 1929 currentScreenItems.add(info); 1930 itemsOnScreen.add(info.id); 1931 } else { 1932 otherScreenItems.add(info); 1933 } 1934 } 1935 } 1936 } 1937 1938 /** Filters the set of widgets which are on the specified screen. */ 1939 private void filterCurrentAppWidgets(int currentScreen, 1940 ArrayList<LauncherAppWidgetInfo> appWidgets, 1941 ArrayList<LauncherAppWidgetInfo> currentScreenWidgets, 1942 ArrayList<LauncherAppWidgetInfo> otherScreenWidgets) { 1943 // If we aren't filtering on a screen, then the set of items to load is the full set of 1944 // widgets given. 1945 if (currentScreen < 0) { 1946 currentScreenWidgets.addAll(appWidgets); 1947 } 1948 1949 for (LauncherAppWidgetInfo widget : appWidgets) { 1950 if (widget == null) continue; 1951 if (widget.container == LauncherSettings.Favorites.CONTAINER_DESKTOP && 1952 widget.screenId == currentScreen) { 1953 currentScreenWidgets.add(widget); 1954 } else { 1955 otherScreenWidgets.add(widget); 1956 } 1957 } 1958 } 1959 1960 /** Filters the set of folders which are on the specified screen. */ 1961 private void filterCurrentFolders(int currentScreen, 1962 HashMap<Long, ItemInfo> itemsIdMap, 1963 HashMap<Long, FolderInfo> folders, 1964 HashMap<Long, FolderInfo> currentScreenFolders, 1965 HashMap<Long, FolderInfo> otherScreenFolders) { 1966 // If we aren't filtering on a screen, then the set of items to load is the full set of 1967 // widgets given. 1968 if (currentScreen < 0) { 1969 currentScreenFolders.putAll(folders); 1970 } 1971 1972 for (long id : folders.keySet()) { 1973 ItemInfo info = itemsIdMap.get(id); 1974 FolderInfo folder = folders.get(id); 1975 if (info == null || folder == null) continue; 1976 if (info.container == LauncherSettings.Favorites.CONTAINER_DESKTOP && 1977 info.screenId == currentScreen) { 1978 currentScreenFolders.put(id, folder); 1979 } else { 1980 otherScreenFolders.put(id, folder); 1981 } 1982 } 1983 } 1984 1985 /** Sorts the set of items by hotseat, workspace (spatially from top to bottom, left to 1986 * right) */ 1987 private void sortWorkspaceItemsSpatially(ArrayList<ItemInfo> workspaceItems) { 1988 // XXX: review this 1989 Collections.sort(workspaceItems, new Comparator<ItemInfo>() { 1990 @Override 1991 public int compare(ItemInfo lhs, ItemInfo rhs) { 1992 int cellCountX = LauncherModel.getCellCountX(); 1993 int cellCountY = LauncherModel.getCellCountY(); 1994 int screenOffset = cellCountX * cellCountY; 1995 int containerOffset = screenOffset * (Launcher.SCREEN_COUNT + 1); // +1 hotseat 1996 long lr = (lhs.container * containerOffset + lhs.screenId * screenOffset + 1997 lhs.cellY * cellCountX + lhs.cellX); 1998 long rr = (rhs.container * containerOffset + rhs.screenId * screenOffset + 1999 rhs.cellY * cellCountX + rhs.cellX); 2000 return (int) (lr - rr); 2001 } 2002 }); 2003 } 2004 2005 private void bindWorkspaceScreens(final Callbacks oldCallbacks, 2006 final ArrayList<Long> orderedScreens) { 2007 2008 final Runnable r = new Runnable() { 2009 @Override 2010 public void run() { 2011 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2012 if (callbacks != null) { 2013 callbacks.bindScreens(orderedScreens); 2014 } 2015 } 2016 }; 2017 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2018 } 2019 2020 private void bindWorkspaceItems(final Callbacks oldCallbacks, 2021 final ArrayList<ItemInfo> workspaceItems, 2022 final ArrayList<LauncherAppWidgetInfo> appWidgets, 2023 final HashMap<Long, FolderInfo> folders, 2024 ArrayList<Runnable> deferredBindRunnables) { 2025 2026 final boolean postOnMainThread = (deferredBindRunnables != null); 2027 2028 // Bind the workspace items 2029 int N = workspaceItems.size(); 2030 for (int i = 0; i < N; i += ITEMS_CHUNK) { 2031 final int start = i; 2032 final int chunkSize = (i+ITEMS_CHUNK <= N) ? ITEMS_CHUNK : (N-i); 2033 final Runnable r = new Runnable() { 2034 @Override 2035 public void run() { 2036 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2037 if (callbacks != null) { 2038 callbacks.bindItems(workspaceItems, start, start+chunkSize, 2039 false); 2040 } 2041 } 2042 }; 2043 if (postOnMainThread) { 2044 deferredBindRunnables.add(r); 2045 } else { 2046 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2047 } 2048 } 2049 2050 // Bind the folders 2051 if (!folders.isEmpty()) { 2052 final Runnable r = new Runnable() { 2053 public void run() { 2054 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2055 if (callbacks != null) { 2056 callbacks.bindFolders(folders); 2057 } 2058 } 2059 }; 2060 if (postOnMainThread) { 2061 deferredBindRunnables.add(r); 2062 } else { 2063 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2064 } 2065 } 2066 2067 // Bind the widgets, one at a time 2068 N = appWidgets.size(); 2069 for (int i = 0; i < N; i++) { 2070 final LauncherAppWidgetInfo widget = appWidgets.get(i); 2071 final Runnable r = new Runnable() { 2072 public void run() { 2073 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2074 if (callbacks != null) { 2075 callbacks.bindAppWidget(widget); 2076 } 2077 } 2078 }; 2079 if (postOnMainThread) { 2080 deferredBindRunnables.add(r); 2081 } else { 2082 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2083 } 2084 } 2085 } 2086 2087 /** 2088 * Binds all loaded data to actual views on the main thread. 2089 */ 2090 private void bindWorkspace(int synchronizeBindPage) { 2091 final long t = SystemClock.uptimeMillis(); 2092 Runnable r; 2093 2094 // Don't use these two variables in any of the callback runnables. 2095 // Otherwise we hold a reference to them. 2096 final Callbacks oldCallbacks = mCallbacks.get(); 2097 if (oldCallbacks == null) { 2098 // This launcher has exited and nobody bothered to tell us. Just bail. 2099 Log.w(TAG, "LoaderTask running with no launcher"); 2100 return; 2101 } 2102 2103 final boolean isLoadingSynchronously = (synchronizeBindPage > -1); 2104 final int currentScreen = isLoadingSynchronously ? synchronizeBindPage : 2105 oldCallbacks.getCurrentWorkspaceScreen(); 2106 2107 // Load all the items that are on the current page first (and in the process, unbind 2108 // all the existing workspace items before we call startBinding() below. 2109 unbindWorkspaceItemsOnMainThread(); 2110 ArrayList<ItemInfo> workspaceItems = new ArrayList<ItemInfo>(); 2111 ArrayList<LauncherAppWidgetInfo> appWidgets = 2112 new ArrayList<LauncherAppWidgetInfo>(); 2113 HashMap<Long, FolderInfo> folders = new HashMap<Long, FolderInfo>(); 2114 HashMap<Long, ItemInfo> itemsIdMap = new HashMap<Long, ItemInfo>(); 2115 ArrayList<Long> orderedScreenIds = new ArrayList<Long>(); 2116 synchronized (sBgLock) { 2117 workspaceItems.addAll(sBgWorkspaceItems); 2118 appWidgets.addAll(sBgAppWidgets); 2119 folders.putAll(sBgFolders); 2120 itemsIdMap.putAll(sBgItemsIdMap); 2121 orderedScreenIds.addAll(sBgWorkspaceScreens); 2122 } 2123 2124 ArrayList<ItemInfo> currentWorkspaceItems = new ArrayList<ItemInfo>(); 2125 ArrayList<ItemInfo> otherWorkspaceItems = new ArrayList<ItemInfo>(); 2126 ArrayList<LauncherAppWidgetInfo> currentAppWidgets = 2127 new ArrayList<LauncherAppWidgetInfo>(); 2128 ArrayList<LauncherAppWidgetInfo> otherAppWidgets = 2129 new ArrayList<LauncherAppWidgetInfo>(); 2130 HashMap<Long, FolderInfo> currentFolders = new HashMap<Long, FolderInfo>(); 2131 HashMap<Long, FolderInfo> otherFolders = new HashMap<Long, FolderInfo>(); 2132 2133 // Separate the items that are on the current screen, and all the other remaining items 2134 filterCurrentWorkspaceItems(currentScreen, workspaceItems, currentWorkspaceItems, 2135 otherWorkspaceItems); 2136 filterCurrentAppWidgets(currentScreen, appWidgets, currentAppWidgets, 2137 otherAppWidgets); 2138 filterCurrentFolders(currentScreen, itemsIdMap, folders, currentFolders, 2139 otherFolders); 2140 sortWorkspaceItemsSpatially(currentWorkspaceItems); 2141 sortWorkspaceItemsSpatially(otherWorkspaceItems); 2142 2143 // Tell the workspace that we're about to start binding items 2144 r = new Runnable() { 2145 public void run() { 2146 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2147 if (callbacks != null) { 2148 callbacks.startBinding(); 2149 } 2150 } 2151 }; 2152 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2153 2154 bindWorkspaceScreens(oldCallbacks, orderedScreenIds); 2155 2156 // Load items on the current page 2157 bindWorkspaceItems(oldCallbacks, currentWorkspaceItems, currentAppWidgets, 2158 currentFolders, null); 2159 if (isLoadingSynchronously) { 2160 r = new Runnable() { 2161 public void run() { 2162 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2163 if (callbacks != null) { 2164 callbacks.onPageBoundSynchronously(currentScreen); 2165 } 2166 } 2167 }; 2168 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2169 } 2170 2171 // Load all the remaining pages (if we are loading synchronously, we want to defer this 2172 // work until after the first render) 2173 mDeferredBindRunnables.clear(); 2174 bindWorkspaceItems(oldCallbacks, otherWorkspaceItems, otherAppWidgets, otherFolders, 2175 (isLoadingSynchronously ? mDeferredBindRunnables : null)); 2176 2177 // Tell the workspace that we're done binding items 2178 r = new Runnable() { 2179 public void run() { 2180 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2181 if (callbacks != null) { 2182 callbacks.finishBindingItems(mIsUpgradePath); 2183 } 2184 2185 // If we're profiling, ensure this is the last thing in the queue. 2186 if (DEBUG_LOADERS) { 2187 Log.d(TAG, "bound workspace in " 2188 + (SystemClock.uptimeMillis()-t) + "ms"); 2189 } 2190 2191 mIsLoadingAndBindingWorkspace = false; 2192 } 2193 }; 2194 if (isLoadingSynchronously) { 2195 mDeferredBindRunnables.add(r); 2196 } else { 2197 runOnMainThread(r, MAIN_THREAD_BINDING_RUNNABLE); 2198 } 2199 } 2200 2201 private void loadAndBindAllApps() { 2202 if (DEBUG_LOADERS) { 2203 Log.d(TAG, "loadAndBindAllApps mAllAppsLoaded=" + mAllAppsLoaded); 2204 } 2205 if (!mAllAppsLoaded) { 2206 loadAllApps(); 2207 synchronized (LoaderTask.this) { 2208 if (mStopped) { 2209 return; 2210 } 2211 mAllAppsLoaded = true; 2212 } 2213 } else { 2214 onlyBindAllApps(); 2215 } 2216 } 2217 2218 private void onlyBindAllApps() { 2219 final Callbacks oldCallbacks = mCallbacks.get(); 2220 if (oldCallbacks == null) { 2221 // This launcher has exited and nobody bothered to tell us. Just bail. 2222 Log.w(TAG, "LoaderTask running with no launcher (onlyBindAllApps)"); 2223 return; 2224 } 2225 2226 // shallow copy 2227 @SuppressWarnings("unchecked") 2228 final ArrayList<ApplicationInfo> list 2229 = (ArrayList<ApplicationInfo>) mBgAllAppsList.data.clone(); 2230 Runnable r = new Runnable() { 2231 public void run() { 2232 final long t = SystemClock.uptimeMillis(); 2233 final Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2234 if (callbacks != null) { 2235 callbacks.bindAllApplications(list); 2236 } 2237 if (DEBUG_LOADERS) { 2238 Log.d(TAG, "bound all " + list.size() + " apps from cache in " 2239 + (SystemClock.uptimeMillis()-t) + "ms"); 2240 } 2241 } 2242 }; 2243 boolean isRunningOnMainThread = !(sWorkerThread.getThreadId() == Process.myTid()); 2244 if (isRunningOnMainThread) { 2245 r.run(); 2246 } else { 2247 mHandler.post(r); 2248 } 2249 } 2250 2251 private void loadAllApps() { 2252 final long loadTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 2253 2254 // Don't use these two variables in any of the callback runnables. 2255 // Otherwise we hold a reference to them. 2256 final Callbacks oldCallbacks = mCallbacks.get(); 2257 if (oldCallbacks == null) { 2258 // This launcher has exited and nobody bothered to tell us. Just bail. 2259 Log.w(TAG, "LoaderTask running with no launcher (loadAllApps)"); 2260 return; 2261 } 2262 2263 final PackageManager packageManager = mContext.getPackageManager(); 2264 final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null); 2265 mainIntent.addCategory(Intent.CATEGORY_LAUNCHER); 2266 2267 // Clear the list of apps 2268 mBgAllAppsList.clear(); 2269 2270 // Query for the set of apps 2271 final long qiaTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 2272 List<ResolveInfo> apps = packageManager.queryIntentActivities(mainIntent, 0); 2273 if (DEBUG_LOADERS) { 2274 Log.d(TAG, "queryIntentActivities took " 2275 + (SystemClock.uptimeMillis()-qiaTime) + "ms"); 2276 Log.d(TAG, "queryIntentActivities got " + apps.size() + " apps"); 2277 } 2278 // Fail if we don't have any apps 2279 if (apps == null || apps.isEmpty()) { 2280 return; 2281 } 2282 // Sort the applications by name 2283 final long sortTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 2284 Collections.sort(apps, 2285 new LauncherModel.ShortcutNameComparator(packageManager, mLabelCache)); 2286 if (DEBUG_LOADERS) { 2287 Log.d(TAG, "sort took " 2288 + (SystemClock.uptimeMillis()-sortTime) + "ms"); 2289 } 2290 2291 // Create the ApplicationInfos 2292 final long addTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 2293 for (int i = 0; i < apps.size(); i++) { 2294 // This builds the icon bitmaps. 2295 mBgAllAppsList.add(new ApplicationInfo(packageManager, apps.get(i), 2296 mIconCache, mLabelCache)); 2297 } 2298 2299 final Callbacks callbacks = tryGetCallbacks(oldCallbacks); 2300 final ArrayList<ApplicationInfo> added = mBgAllAppsList.added; 2301 mBgAllAppsList.added = new ArrayList<ApplicationInfo>(); 2302 2303 // Post callback on main thread 2304 mHandler.post(new Runnable() { 2305 public void run() { 2306 final long bindTime = SystemClock.uptimeMillis(); 2307 if (callbacks != null) { 2308 callbacks.bindAllApplications(added); 2309 if (DEBUG_LOADERS) { 2310 Log.d(TAG, "bound " + added.size() + " apps in " 2311 + (SystemClock.uptimeMillis() - bindTime) + "ms"); 2312 } 2313 } else { 2314 Log.i(TAG, "not binding apps: no Launcher activity"); 2315 } 2316 } 2317 }); 2318 2319 if (DEBUG_LOADERS) { 2320 Log.d(TAG, "Icons processed in " 2321 + (SystemClock.uptimeMillis() - loadTime) + "ms"); 2322 } 2323 } 2324 2325 public void dumpState() { 2326 synchronized (sBgLock) { 2327 Log.d(TAG, "mLoaderTask.mContext=" + mContext); 2328 Log.d(TAG, "mLoaderTask.mIsLaunching=" + mIsLaunching); 2329 Log.d(TAG, "mLoaderTask.mStopped=" + mStopped); 2330 Log.d(TAG, "mLoaderTask.mLoadAndBindStepFinished=" + mLoadAndBindStepFinished); 2331 Log.d(TAG, "mItems size=" + sBgWorkspaceItems.size()); 2332 } 2333 } 2334 } 2335 2336 void enqueuePackageUpdated(PackageUpdatedTask task) { 2337 sWorker.post(task); 2338 } 2339 2340 private class PackageUpdatedTask implements Runnable { 2341 int mOp; 2342 String[] mPackages; 2343 2344 public static final int OP_NONE = 0; 2345 public static final int OP_ADD = 1; 2346 public static final int OP_UPDATE = 2; 2347 public static final int OP_REMOVE = 3; // uninstlled 2348 public static final int OP_UNAVAILABLE = 4; // external media unmounted 2349 2350 2351 public PackageUpdatedTask(int op, String[] packages) { 2352 mOp = op; 2353 mPackages = packages; 2354 } 2355 2356 public void run() { 2357 final Context context = mApp.getContext(); 2358 2359 final String[] packages = mPackages; 2360 final int N = packages.length; 2361 switch (mOp) { 2362 case OP_ADD: 2363 for (int i=0; i<N; i++) { 2364 if (DEBUG_LOADERS) Log.d(TAG, "mAllAppsList.addPackage " + packages[i]); 2365 mBgAllAppsList.addPackage(context, packages[i]); 2366 } 2367 break; 2368 case OP_UPDATE: 2369 for (int i=0; i<N; i++) { 2370 if (DEBUG_LOADERS) Log.d(TAG, "mAllAppsList.updatePackage " + packages[i]); 2371 mBgAllAppsList.updatePackage(context, packages[i]); 2372 WidgetPreviewLoader.removeFromDb( 2373 mApp.getWidgetPreviewCacheDb(), packages[i]); 2374 } 2375 break; 2376 case OP_REMOVE: 2377 case OP_UNAVAILABLE: 2378 for (int i=0; i<N; i++) { 2379 if (DEBUG_LOADERS) Log.d(TAG, "mAllAppsList.removePackage " + packages[i]); 2380 mBgAllAppsList.removePackage(packages[i]); 2381 WidgetPreviewLoader.removeFromDb( 2382 mApp.getWidgetPreviewCacheDb(), packages[i]); 2383 } 2384 break; 2385 } 2386 2387 ArrayList<ApplicationInfo> added = null; 2388 ArrayList<ApplicationInfo> modified = null; 2389 final ArrayList<ApplicationInfo> removedApps = new ArrayList<ApplicationInfo>(); 2390 2391 if (mBgAllAppsList.added.size() > 0) { 2392 added = new ArrayList<ApplicationInfo>(mBgAllAppsList.added); 2393 mBgAllAppsList.added.clear(); 2394 } 2395 if (mBgAllAppsList.modified.size() > 0) { 2396 modified = new ArrayList<ApplicationInfo>(mBgAllAppsList.modified); 2397 mBgAllAppsList.modified.clear(); 2398 } 2399 if (mBgAllAppsList.removed.size() > 0) { 2400 removedApps.addAll(mBgAllAppsList.removed); 2401 mBgAllAppsList.removed.clear(); 2402 } 2403 2404 final Callbacks callbacks = mCallbacks != null ? mCallbacks.get() : null; 2405 if (callbacks == null) { 2406 Log.w(TAG, "Nobody to tell about the new app. Launcher is probably loading."); 2407 return; 2408 } 2409 2410 if (added != null) { 2411 // Ensure that we add all the workspace applications to the db 2412 final ArrayList<ItemInfo> addedInfos = new ArrayList<ItemInfo>(added); 2413 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 2414 addAndBindAddedApps(context, addedInfos, cb); 2415 } 2416 if (modified != null) { 2417 final ArrayList<ApplicationInfo> modifiedFinal = modified; 2418 2419 // Update the launcher db to reflect the changes 2420 for (ApplicationInfo a : modifiedFinal) { 2421 ArrayList<ItemInfo> infos = 2422 getItemInfoForComponentName(a.componentName); 2423 for (ItemInfo i : infos) { 2424 if (isShortcutInfoUpdateable(i)) { 2425 ShortcutInfo info = (ShortcutInfo) i; 2426 info.title = a.title.toString(); 2427 updateItemInDatabase(context, info); 2428 } 2429 } 2430 } 2431 2432 mHandler.post(new Runnable() { 2433 public void run() { 2434 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 2435 if (callbacks == cb && cb != null) { 2436 callbacks.bindAppsUpdated(modifiedFinal); 2437 } 2438 } 2439 }); 2440 } 2441 // If a package has been removed, or an app has been removed as a result of 2442 // an update (for example), make the removed callback. 2443 if (mOp == OP_REMOVE || !removedApps.isEmpty()) { 2444 final boolean packageRemoved = (mOp == OP_REMOVE); 2445 final ArrayList<String> removedPackageNames = 2446 new ArrayList<String>(Arrays.asList(packages)); 2447 2448 // Update the launcher db to reflect the removal of apps 2449 if (packageRemoved) { 2450 for (String pn : removedPackageNames) { 2451 ArrayList<ItemInfo> infos = getItemInfoForPackageName(pn); 2452 for (ItemInfo i : infos) { 2453 deleteItemFromDatabase(context, i); 2454 } 2455 } 2456 } else { 2457 for (ApplicationInfo a : removedApps) { 2458 ArrayList<ItemInfo> infos = 2459 getItemInfoForComponentName(a.componentName); 2460 for (ItemInfo i : infos) { 2461 deleteItemFromDatabase(context, i); 2462 } 2463 } 2464 } 2465 2466 mHandler.post(new Runnable() { 2467 public void run() { 2468 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 2469 if (callbacks == cb && cb != null) { 2470 callbacks.bindComponentsRemoved(removedPackageNames, 2471 removedApps, packageRemoved); 2472 } 2473 } 2474 }); 2475 } 2476 2477 final ArrayList<Object> widgetsAndShortcuts = 2478 getSortedWidgetsAndShortcuts(context); 2479 mHandler.post(new Runnable() { 2480 @Override 2481 public void run() { 2482 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 2483 if (callbacks == cb && cb != null) { 2484 callbacks.bindPackagesUpdated(widgetsAndShortcuts); 2485 } 2486 } 2487 }); 2488 } 2489 } 2490 2491 // Returns a list of ResolveInfos/AppWindowInfos in sorted order 2492 public static ArrayList<Object> getSortedWidgetsAndShortcuts(Context context) { 2493 PackageManager packageManager = context.getPackageManager(); 2494 final ArrayList<Object> widgetsAndShortcuts = new ArrayList<Object>(); 2495 widgetsAndShortcuts.addAll(AppWidgetManager.getInstance(context).getInstalledProviders()); 2496 Intent shortcutsIntent = new Intent(Intent.ACTION_CREATE_SHORTCUT); 2497 widgetsAndShortcuts.addAll(packageManager.queryIntentActivities(shortcutsIntent, 0)); 2498 Collections.sort(widgetsAndShortcuts, 2499 new LauncherModel.WidgetAndShortcutNameComparator(packageManager)); 2500 return widgetsAndShortcuts; 2501 } 2502 2503 /** 2504 * This is called from the code that adds shortcuts from the intent receiver. This 2505 * doesn't have a Cursor, but 2506 */ 2507 public ShortcutInfo getShortcutInfo(PackageManager manager, Intent intent, Context context) { 2508 return getShortcutInfo(manager, intent, context, null, -1, -1, null); 2509 } 2510 2511 /** 2512 * Make an ShortcutInfo object for a shortcut that is an application. 2513 * 2514 * If c is not null, then it will be used to fill in missing data like the title and icon. 2515 */ 2516 public ShortcutInfo getShortcutInfo(PackageManager manager, Intent intent, Context context, 2517 Cursor c, int iconIndex, int titleIndex, HashMap<Object, CharSequence> labelCache) { 2518 Bitmap icon = null; 2519 final ShortcutInfo info = new ShortcutInfo(); 2520 2521 ComponentName componentName = intent.getComponent(); 2522 if (componentName == null) { 2523 return null; 2524 } 2525 2526 try { 2527 PackageInfo pi = manager.getPackageInfo(componentName.getPackageName(), 0); 2528 if (!pi.applicationInfo.enabled) { 2529 // If we return null here, the corresponding item will be removed from the launcher 2530 // db and will not appear in the workspace. 2531 return null; 2532 } 2533 info.initFlagsAndFirstInstallTime(pi); 2534 } catch (NameNotFoundException e) { 2535 Log.d(TAG, "getPackInfo failed for package " + componentName.getPackageName()); 2536 } 2537 2538 // TODO: See if the PackageManager knows about this case. If it doesn't 2539 // then return null & delete this. 2540 2541 // the resource -- This may implicitly give us back the fallback icon, 2542 // but don't worry about that. All we're doing with usingFallbackIcon is 2543 // to avoid saving lots of copies of that in the database, and most apps 2544 // have icons anyway. 2545 2546 // Attempt to use queryIntentActivities to get the ResolveInfo (with IntentFilter info) and 2547 // if that fails, or is ambiguious, fallback to the standard way of getting the resolve info 2548 // via resolveActivity(). 2549 ResolveInfo resolveInfo = null; 2550 ComponentName oldComponent = intent.getComponent(); 2551 Intent newIntent = new Intent(intent.getAction(), null); 2552 newIntent.addCategory(Intent.CATEGORY_LAUNCHER); 2553 newIntent.setPackage(oldComponent.getPackageName()); 2554 List<ResolveInfo> infos = manager.queryIntentActivities(newIntent, 0); 2555 for (ResolveInfo i : infos) { 2556 ComponentName cn = new ComponentName(i.activityInfo.packageName, 2557 i.activityInfo.name); 2558 if (cn.equals(oldComponent)) { 2559 resolveInfo = i; 2560 } 2561 } 2562 if (resolveInfo == null) { 2563 resolveInfo = manager.resolveActivity(intent, 0); 2564 } 2565 if (resolveInfo != null) { 2566 icon = mIconCache.getIcon(componentName, resolveInfo, labelCache); 2567 } 2568 // the db 2569 if (icon == null) { 2570 if (c != null) { 2571 icon = getIconFromCursor(c, iconIndex, context); 2572 } 2573 } 2574 // the fallback icon 2575 if (icon == null) { 2576 icon = getFallbackIcon(); 2577 info.usingFallbackIcon = true; 2578 } 2579 info.setIcon(icon); 2580 2581 // from the resource 2582 if (resolveInfo != null) { 2583 ComponentName key = LauncherModel.getComponentNameFromResolveInfo(resolveInfo); 2584 if (labelCache != null && labelCache.containsKey(key)) { 2585 info.title = labelCache.get(key); 2586 } else { 2587 info.title = resolveInfo.activityInfo.loadLabel(manager); 2588 if (labelCache != null) { 2589 labelCache.put(key, info.title); 2590 } 2591 } 2592 } 2593 // from the db 2594 if (info.title == null) { 2595 if (c != null) { 2596 info.title = c.getString(titleIndex); 2597 } 2598 } 2599 // fall back to the class name of the activity 2600 if (info.title == null) { 2601 info.title = componentName.getClassName(); 2602 } 2603 info.itemType = LauncherSettings.Favorites.ITEM_TYPE_APPLICATION; 2604 return info; 2605 } 2606 2607 static ArrayList<ItemInfo> filterItemInfos(Collection<ItemInfo> infos, 2608 ItemInfoFilter f) { 2609 HashSet<ItemInfo> filtered = new HashSet<ItemInfo>(); 2610 for (ItemInfo i : infos) { 2611 if (i instanceof ShortcutInfo) { 2612 ShortcutInfo info = (ShortcutInfo) i; 2613 ComponentName cn = info.intent.getComponent(); 2614 if (cn != null && f.filterItem(null, info, cn)) { 2615 filtered.add(info); 2616 } 2617 } else if (i instanceof FolderInfo) { 2618 FolderInfo info = (FolderInfo) i; 2619 for (ShortcutInfo s : info.contents) { 2620 ComponentName cn = s.intent.getComponent(); 2621 if (cn != null && f.filterItem(info, s, cn)) { 2622 filtered.add(s); 2623 } 2624 } 2625 } else if (i instanceof LauncherAppWidgetInfo) { 2626 LauncherAppWidgetInfo info = (LauncherAppWidgetInfo) i; 2627 ComponentName cn = info.providerName; 2628 if (cn != null && f.filterItem(null, info, cn)) { 2629 filtered.add(info); 2630 } 2631 } 2632 } 2633 return new ArrayList<ItemInfo>(filtered); 2634 } 2635 2636 private ArrayList<ItemInfo> getItemInfoForPackageName(final String pn) { 2637 HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 2638 ItemInfoFilter filter = new ItemInfoFilter() { 2639 @Override 2640 public boolean filterItem(ItemInfo parent, ItemInfo info, ComponentName cn) { 2641 return cn.getPackageName().equals(pn); 2642 } 2643 }; 2644 return filterItemInfos(sBgItemsIdMap.values(), filter); 2645 } 2646 2647 private ArrayList<ItemInfo> getItemInfoForComponentName(final ComponentName cname) { 2648 HashSet<ItemInfo> infos = new HashSet<ItemInfo>(); 2649 ItemInfoFilter filter = new ItemInfoFilter() { 2650 @Override 2651 public boolean filterItem(ItemInfo parent, ItemInfo info, ComponentName cn) { 2652 return cn.equals(cname); 2653 } 2654 }; 2655 return filterItemInfos(sBgItemsIdMap.values(), filter); 2656 } 2657 2658 public static boolean isShortcutInfoUpdateable(ItemInfo i) { 2659 if (i instanceof ShortcutInfo) { 2660 ShortcutInfo info = (ShortcutInfo) i; 2661 // We need to check for ACTION_MAIN otherwise getComponent() might 2662 // return null for some shortcuts (for instance, for shortcuts to 2663 // web pages.) 2664 Intent intent = info.intent; 2665 ComponentName name = intent.getComponent(); 2666 if (info.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION && 2667 Intent.ACTION_MAIN.equals(intent.getAction()) && name != null) { 2668 return true; 2669 } 2670 } 2671 return false; 2672 } 2673 2674 /** 2675 * Make an ShortcutInfo object for a shortcut that isn't an application. 2676 */ 2677 private ShortcutInfo getShortcutInfo(Cursor c, Context context, 2678 int iconTypeIndex, int iconPackageIndex, int iconResourceIndex, int iconIndex, 2679 int titleIndex) { 2680 2681 Bitmap icon = null; 2682 final ShortcutInfo info = new ShortcutInfo(); 2683 info.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 2684 2685 // TODO: If there's an explicit component and we can't install that, delete it. 2686 2687 info.title = c.getString(titleIndex); 2688 2689 int iconType = c.getInt(iconTypeIndex); 2690 switch (iconType) { 2691 case LauncherSettings.Favorites.ICON_TYPE_RESOURCE: 2692 String packageName = c.getString(iconPackageIndex); 2693 String resourceName = c.getString(iconResourceIndex); 2694 PackageManager packageManager = context.getPackageManager(); 2695 info.customIcon = false; 2696 // the resource 2697 try { 2698 Resources resources = packageManager.getResourcesForApplication(packageName); 2699 if (resources != null) { 2700 final int id = resources.getIdentifier(resourceName, null, null); 2701 icon = Utilities.createIconBitmap( 2702 mIconCache.getFullResIcon(resources, id), context); 2703 } 2704 } catch (Exception e) { 2705 // drop this. we have other places to look for icons 2706 } 2707 // the db 2708 if (icon == null) { 2709 icon = getIconFromCursor(c, iconIndex, context); 2710 } 2711 // the fallback icon 2712 if (icon == null) { 2713 icon = getFallbackIcon(); 2714 info.usingFallbackIcon = true; 2715 } 2716 break; 2717 case LauncherSettings.Favorites.ICON_TYPE_BITMAP: 2718 icon = getIconFromCursor(c, iconIndex, context); 2719 if (icon == null) { 2720 icon = getFallbackIcon(); 2721 info.customIcon = false; 2722 info.usingFallbackIcon = true; 2723 } else { 2724 info.customIcon = true; 2725 } 2726 break; 2727 default: 2728 icon = getFallbackIcon(); 2729 info.usingFallbackIcon = true; 2730 info.customIcon = false; 2731 break; 2732 } 2733 info.setIcon(icon); 2734 return info; 2735 } 2736 2737 Bitmap getIconFromCursor(Cursor c, int iconIndex, Context context) { 2738 @SuppressWarnings("all") // suppress dead code warning 2739 final boolean debug = false; 2740 if (debug) { 2741 Log.d(TAG, "getIconFromCursor app=" 2742 + c.getString(c.getColumnIndexOrThrow(LauncherSettings.Favorites.TITLE))); 2743 } 2744 byte[] data = c.getBlob(iconIndex); 2745 try { 2746 return Utilities.createIconBitmap( 2747 BitmapFactory.decodeByteArray(data, 0, data.length), context); 2748 } catch (Exception e) { 2749 return null; 2750 } 2751 } 2752 2753 ShortcutInfo addShortcut(Context context, Intent data, long container, int screen, 2754 int cellX, int cellY, boolean notify) { 2755 final ShortcutInfo info = infoFromShortcutIntent(context, data, null); 2756 if (info == null) { 2757 return null; 2758 } 2759 addItemToDatabase(context, info, container, screen, cellX, cellY, notify); 2760 2761 return info; 2762 } 2763 2764 /** 2765 * Attempts to find an AppWidgetProviderInfo that matches the given component. 2766 */ 2767 AppWidgetProviderInfo findAppWidgetProviderInfoWithComponent(Context context, 2768 ComponentName component) { 2769 List<AppWidgetProviderInfo> widgets = 2770 AppWidgetManager.getInstance(context).getInstalledProviders(); 2771 for (AppWidgetProviderInfo info : widgets) { 2772 if (info.provider.equals(component)) { 2773 return info; 2774 } 2775 } 2776 return null; 2777 } 2778 2779 /** 2780 * Returns a list of all the widgets that can handle configuration with a particular mimeType. 2781 */ 2782 List<WidgetMimeTypeHandlerData> resolveWidgetsForMimeType(Context context, String mimeType) { 2783 final PackageManager packageManager = context.getPackageManager(); 2784 final List<WidgetMimeTypeHandlerData> supportedConfigurationActivities = 2785 new ArrayList<WidgetMimeTypeHandlerData>(); 2786 2787 final Intent supportsIntent = 2788 new Intent(InstallWidgetReceiver.ACTION_SUPPORTS_CLIPDATA_MIMETYPE); 2789 supportsIntent.setType(mimeType); 2790 2791 // Create a set of widget configuration components that we can test against 2792 final List<AppWidgetProviderInfo> widgets = 2793 AppWidgetManager.getInstance(context).getInstalledProviders(); 2794 final HashMap<ComponentName, AppWidgetProviderInfo> configurationComponentToWidget = 2795 new HashMap<ComponentName, AppWidgetProviderInfo>(); 2796 for (AppWidgetProviderInfo info : widgets) { 2797 configurationComponentToWidget.put(info.configure, info); 2798 } 2799 2800 // Run through each of the intents that can handle this type of clip data, and cross 2801 // reference them with the components that are actual configuration components 2802 final List<ResolveInfo> activities = packageManager.queryIntentActivities(supportsIntent, 2803 PackageManager.MATCH_DEFAULT_ONLY); 2804 for (ResolveInfo info : activities) { 2805 final ActivityInfo activityInfo = info.activityInfo; 2806 final ComponentName infoComponent = new ComponentName(activityInfo.packageName, 2807 activityInfo.name); 2808 if (configurationComponentToWidget.containsKey(infoComponent)) { 2809 supportedConfigurationActivities.add( 2810 new InstallWidgetReceiver.WidgetMimeTypeHandlerData(info, 2811 configurationComponentToWidget.get(infoComponent))); 2812 } 2813 } 2814 return supportedConfigurationActivities; 2815 } 2816 2817 ShortcutInfo infoFromShortcutIntent(Context context, Intent data, Bitmap fallbackIcon) { 2818 Intent intent = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_INTENT); 2819 String name = data.getStringExtra(Intent.EXTRA_SHORTCUT_NAME); 2820 Parcelable bitmap = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON); 2821 2822 if (intent == null) { 2823 // If the intent is null, we can't construct a valid ShortcutInfo, so we return null 2824 Log.e(TAG, "Can't construct ShorcutInfo with null intent"); 2825 return null; 2826 } 2827 2828 Bitmap icon = null; 2829 boolean customIcon = false; 2830 ShortcutIconResource iconResource = null; 2831 2832 if (bitmap != null && bitmap instanceof Bitmap) { 2833 icon = Utilities.createIconBitmap(new FastBitmapDrawable((Bitmap)bitmap), context); 2834 customIcon = true; 2835 } else { 2836 Parcelable extra = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE); 2837 if (extra != null && extra instanceof ShortcutIconResource) { 2838 try { 2839 iconResource = (ShortcutIconResource) extra; 2840 final PackageManager packageManager = context.getPackageManager(); 2841 Resources resources = packageManager.getResourcesForApplication( 2842 iconResource.packageName); 2843 final int id = resources.getIdentifier(iconResource.resourceName, null, null); 2844 icon = Utilities.createIconBitmap( 2845 mIconCache.getFullResIcon(resources, id), context); 2846 } catch (Exception e) { 2847 Log.w(TAG, "Could not load shortcut icon: " + extra); 2848 } 2849 } 2850 } 2851 2852 final ShortcutInfo info = new ShortcutInfo(); 2853 2854 if (icon == null) { 2855 if (fallbackIcon != null) { 2856 icon = fallbackIcon; 2857 } else { 2858 icon = getFallbackIcon(); 2859 info.usingFallbackIcon = true; 2860 } 2861 } 2862 info.setIcon(icon); 2863 2864 info.title = name; 2865 info.intent = intent; 2866 info.customIcon = customIcon; 2867 info.iconResource = iconResource; 2868 2869 return info; 2870 } 2871 2872 boolean queueIconToBeChecked(HashMap<Object, byte[]> cache, ShortcutInfo info, Cursor c, 2873 int iconIndex) { 2874 // If apps can't be on SD, don't even bother. 2875 if (!mAppsCanBeOnExternalStorage) { 2876 return false; 2877 } 2878 // If this icon doesn't have a custom icon, check to see 2879 // what's stored in the DB, and if it doesn't match what 2880 // we're going to show, store what we are going to show back 2881 // into the DB. We do this so when we're loading, if the 2882 // package manager can't find an icon (for example because 2883 // the app is on SD) then we can use that instead. 2884 if (!info.customIcon && !info.usingFallbackIcon) { 2885 cache.put(info, c.getBlob(iconIndex)); 2886 return true; 2887 } 2888 return false; 2889 } 2890 void updateSavedIcon(Context context, ShortcutInfo info, byte[] data) { 2891 boolean needSave = false; 2892 try { 2893 if (data != null) { 2894 Bitmap saved = BitmapFactory.decodeByteArray(data, 0, data.length); 2895 Bitmap loaded = info.getIcon(mIconCache); 2896 needSave = !saved.sameAs(loaded); 2897 } else { 2898 needSave = true; 2899 } 2900 } catch (Exception e) { 2901 needSave = true; 2902 } 2903 if (needSave) { 2904 Log.d(TAG, "going to save icon bitmap for info=" + info); 2905 // This is slower than is ideal, but this only happens once 2906 // or when the app is updated with a new icon. 2907 updateItemInDatabase(context, info); 2908 } 2909 } 2910 2911 /** 2912 * Return an existing FolderInfo object if we have encountered this ID previously, 2913 * or make a new one. 2914 */ 2915 private static FolderInfo findOrMakeFolder(HashMap<Long, FolderInfo> folders, long id) { 2916 // See if a placeholder was created for us already 2917 FolderInfo folderInfo = folders.get(id); 2918 if (folderInfo == null) { 2919 // No placeholder -- create a new instance 2920 folderInfo = new FolderInfo(); 2921 folders.put(id, folderInfo); 2922 } 2923 return folderInfo; 2924 } 2925 2926 public static final Comparator<ApplicationInfo> getAppNameComparator() { 2927 final Collator collator = Collator.getInstance(); 2928 return new Comparator<ApplicationInfo>() { 2929 public final int compare(ApplicationInfo a, ApplicationInfo b) { 2930 int result = collator.compare(a.title.toString(), b.title.toString()); 2931 if (result == 0) { 2932 result = a.componentName.compareTo(b.componentName); 2933 } 2934 return result; 2935 } 2936 }; 2937 } 2938 public static final Comparator<ApplicationInfo> APP_INSTALL_TIME_COMPARATOR 2939 = new Comparator<ApplicationInfo>() { 2940 public final int compare(ApplicationInfo a, ApplicationInfo b) { 2941 if (a.firstInstallTime < b.firstInstallTime) return 1; 2942 if (a.firstInstallTime > b.firstInstallTime) return -1; 2943 return 0; 2944 } 2945 }; 2946 public static final Comparator<AppWidgetProviderInfo> getWidgetNameComparator() { 2947 final Collator collator = Collator.getInstance(); 2948 return new Comparator<AppWidgetProviderInfo>() { 2949 public final int compare(AppWidgetProviderInfo a, AppWidgetProviderInfo b) { 2950 return collator.compare(a.label.toString(), b.label.toString()); 2951 } 2952 }; 2953 } 2954 static ComponentName getComponentNameFromResolveInfo(ResolveInfo info) { 2955 if (info.activityInfo != null) { 2956 return new ComponentName(info.activityInfo.packageName, info.activityInfo.name); 2957 } else { 2958 return new ComponentName(info.serviceInfo.packageName, info.serviceInfo.name); 2959 } 2960 } 2961 public static class ShortcutNameComparator implements Comparator<ResolveInfo> { 2962 private Collator mCollator; 2963 private PackageManager mPackageManager; 2964 private HashMap<Object, CharSequence> mLabelCache; 2965 ShortcutNameComparator(PackageManager pm) { 2966 mPackageManager = pm; 2967 mLabelCache = new HashMap<Object, CharSequence>(); 2968 mCollator = Collator.getInstance(); 2969 } 2970 ShortcutNameComparator(PackageManager pm, HashMap<Object, CharSequence> labelCache) { 2971 mPackageManager = pm; 2972 mLabelCache = labelCache; 2973 mCollator = Collator.getInstance(); 2974 } 2975 public final int compare(ResolveInfo a, ResolveInfo b) { 2976 CharSequence labelA, labelB; 2977 ComponentName keyA = LauncherModel.getComponentNameFromResolveInfo(a); 2978 ComponentName keyB = LauncherModel.getComponentNameFromResolveInfo(b); 2979 if (mLabelCache.containsKey(keyA)) { 2980 labelA = mLabelCache.get(keyA); 2981 } else { 2982 labelA = a.loadLabel(mPackageManager).toString(); 2983 2984 mLabelCache.put(keyA, labelA); 2985 } 2986 if (mLabelCache.containsKey(keyB)) { 2987 labelB = mLabelCache.get(keyB); 2988 } else { 2989 labelB = b.loadLabel(mPackageManager).toString(); 2990 2991 mLabelCache.put(keyB, labelB); 2992 } 2993 return mCollator.compare(labelA, labelB); 2994 } 2995 }; 2996 public static class WidgetAndShortcutNameComparator implements Comparator<Object> { 2997 private Collator mCollator; 2998 private PackageManager mPackageManager; 2999 private HashMap<Object, String> mLabelCache; 3000 WidgetAndShortcutNameComparator(PackageManager pm) { 3001 mPackageManager = pm; 3002 mLabelCache = new HashMap<Object, String>(); 3003 mCollator = Collator.getInstance(); 3004 } 3005 public final int compare(Object a, Object b) { 3006 String labelA, labelB; 3007 if (mLabelCache.containsKey(a)) { 3008 labelA = mLabelCache.get(a); 3009 } else { 3010 labelA = (a instanceof AppWidgetProviderInfo) ? 3011 ((AppWidgetProviderInfo) a).label : 3012 ((ResolveInfo) a).loadLabel(mPackageManager).toString(); 3013 mLabelCache.put(a, labelA); 3014 } 3015 if (mLabelCache.containsKey(b)) { 3016 labelB = mLabelCache.get(b); 3017 } else { 3018 labelB = (b instanceof AppWidgetProviderInfo) ? 3019 ((AppWidgetProviderInfo) b).label : 3020 ((ResolveInfo) b).loadLabel(mPackageManager).toString(); 3021 mLabelCache.put(b, labelB); 3022 } 3023 return mCollator.compare(labelA, labelB); 3024 } 3025 }; 3026 3027 public void dumpState() { 3028 Log.d(TAG, "mCallbacks=" + mCallbacks); 3029 ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList.data", mBgAllAppsList.data); 3030 ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList.added", mBgAllAppsList.added); 3031 ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList.removed", mBgAllAppsList.removed); 3032 ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList.modified", mBgAllAppsList.modified); 3033 if (mLoaderTask != null) { 3034 mLoaderTask.dumpState(); 3035 } else { 3036 Log.d(TAG, "mLoaderTask=null"); 3037 } 3038 } 3039} 3040