LauncherModel.java revision a8c760d395e1d2a78522427738302fbca3a72453
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.launcher2; 18 19import java.lang.ref.WeakReference; 20import java.net.URISyntaxException; 21import java.text.Collator; 22import java.util.ArrayList; 23import java.util.Collections; 24import java.util.Comparator; 25import java.util.HashMap; 26import java.util.List; 27 28import android.appwidget.AppWidgetManager; 29import android.appwidget.AppWidgetProviderInfo; 30import android.content.BroadcastReceiver; 31import android.content.ComponentName; 32import android.content.ContentProviderClient; 33import android.content.ContentResolver; 34import android.content.ContentValues; 35import android.content.Context; 36import android.content.Intent; 37import android.content.Intent.ShortcutIconResource; 38import android.content.pm.ActivityInfo; 39import android.content.pm.PackageManager; 40import android.content.pm.ResolveInfo; 41import android.content.res.Resources; 42import android.database.Cursor; 43import android.graphics.Bitmap; 44import android.graphics.BitmapFactory; 45import android.net.Uri; 46import android.os.Environment; 47import android.os.Handler; 48import android.os.HandlerThread; 49import android.os.Parcelable; 50import android.os.Process; 51import android.os.RemoteException; 52import android.os.SystemClock; 53import android.util.Log; 54 55import com.android.launcher.R; 56import com.android.launcher2.InstallWidgetReceiver.WidgetMimeTypeHandlerData; 57 58/** 59 * Maintains in-memory state of the Launcher. It is expected that there should be only one 60 * LauncherModel object held in a static. Also provide APIs for updating the database state 61 * for the Launcher. 62 */ 63public class LauncherModel extends BroadcastReceiver { 64 static final boolean DEBUG_LOADERS = false; 65 static final String TAG = "Launcher.Model"; 66 67 private static final int ITEMS_CHUNK = 6; // batch size for the workspace icons 68 private final boolean mAppsCanBeOnExternalStorage; 69 private int mBatchSize; // 0 is all apps at once 70 private int mAllAppsLoadDelay; // milliseconds between batches 71 72 private final LauncherApplication mApp; 73 private final Object mLock = new Object(); 74 private DeferredHandler mHandler = new DeferredHandler(); 75 private LoaderTask mLoaderTask; 76 77 private static final HandlerThread sWorkerThread = new HandlerThread("launcher-loader"); 78 static { 79 sWorkerThread.start(); 80 } 81 private static final Handler sWorker = new Handler(sWorkerThread.getLooper()); 82 83 // We start off with everything not loaded. After that, we assume that 84 // our monitoring of the package manager provides all updates and we never 85 // need to do a requery. These are only ever touched from the loader thread. 86 private boolean mWorkspaceLoaded; 87 private boolean mAllAppsLoaded; 88 89 private WeakReference<Callbacks> mCallbacks; 90 91 // < only access in worker thread > 92 private AllAppsList mAllAppsList; 93 94 // sItemsIdMap maps *all* the ItemInfos (shortcuts, folders, and widgets) created by 95 // LauncherModel to their ids 96 static final HashMap<Long, ItemInfo> sItemsIdMap = new HashMap<Long, ItemInfo>(); 97 98 // sItems is passed to bindItems, which expects a list of all folders and shortcuts created by 99 // LauncherModel that are directly on the home screen (however, no widgets or shortcuts 100 // within folders). 101 static final ArrayList<ItemInfo> sItems = new ArrayList<ItemInfo>(); 102 103 // sAppWidgets is all LauncherAppWidgetInfo created by LauncherModel. Passed to bindAppWidget() 104 static final ArrayList<LauncherAppWidgetInfo> sAppWidgets = 105 new ArrayList<LauncherAppWidgetInfo>(); 106 107 // sFolders is all FolderInfos created by LauncherModel. Passed to bindFolders() 108 static final HashMap<Long, FolderInfo> sFolders = new HashMap<Long, FolderInfo>(); 109 // </ only access in worker thread > 110 111 private IconCache mIconCache; 112 private Bitmap mDefaultIcon; 113 114 private static int mCellCountX; 115 private static int mCellCountY; 116 117 public interface Callbacks { 118 public boolean setLoadOnResume(); 119 public int getCurrentWorkspaceScreen(); 120 public void startBinding(); 121 public void bindItems(ArrayList<ItemInfo> shortcuts, int start, int end); 122 public void bindFolders(HashMap<Long,FolderInfo> folders); 123 public void finishBindingItems(); 124 public void bindAppWidget(LauncherAppWidgetInfo info); 125 public void bindAllApplications(ArrayList<ApplicationInfo> apps); 126 public void bindAppsAdded(ArrayList<ApplicationInfo> apps); 127 public void bindAppsUpdated(ArrayList<ApplicationInfo> apps); 128 public void bindAppsRemoved(ArrayList<ApplicationInfo> apps, boolean permanent); 129 public void bindPackagesUpdated(); 130 public boolean isAllAppsVisible(); 131 } 132 133 LauncherModel(LauncherApplication app, IconCache iconCache) { 134 mAppsCanBeOnExternalStorage = !Environment.isExternalStorageEmulated(); 135 mApp = app; 136 mAllAppsList = new AllAppsList(iconCache); 137 mIconCache = iconCache; 138 139 mDefaultIcon = Utilities.createIconBitmap( 140 mIconCache.getFullResDefaultActivityIcon(), app); 141 142 mAllAppsLoadDelay = app.getResources().getInteger(R.integer.config_allAppsBatchLoadDelay); 143 144 mBatchSize = app.getResources().getInteger(R.integer.config_allAppsBatchSize); 145 } 146 147 public Bitmap getFallbackIcon() { 148 return Bitmap.createBitmap(mDefaultIcon); 149 } 150 151 /** 152 * Adds an item to the DB if it was not created previously, or move it to a new 153 * <container, screen, cellX, cellY> 154 */ 155 static void addOrMoveItemInDatabase(Context context, ItemInfo item, long container, 156 int screen, int cellX, int cellY) { 157 if (item.container == ItemInfo.NO_ID) { 158 // From all apps 159 addItemToDatabase(context, item, container, screen, cellX, cellY, false); 160 } else { 161 // From somewhere else 162 moveItemInDatabase(context, item, container, screen, cellX, cellY); 163 } 164 } 165 166 /** 167 * Move an item in the DB to a new <container, screen, cellX, cellY> 168 */ 169 static void moveItemInDatabase(Context context, final ItemInfo item, final long container, 170 final int screen, final int cellX, final int cellY) { 171 item.container = container; 172 item.screen = screen; 173 item.cellX = cellX; 174 item.cellY = cellY; 175 176 final Uri uri = LauncherSettings.Favorites.getContentUri(item.id, false); 177 final ContentValues values = new ContentValues(); 178 final ContentResolver cr = context.getContentResolver(); 179 180 values.put(LauncherSettings.Favorites.CONTAINER, item.container); 181 values.put(LauncherSettings.Favorites.CELLX, cellX); 182 values.put(LauncherSettings.Favorites.CELLY, cellY); 183 values.put(LauncherSettings.Favorites.SCREEN, item.screen); 184 185 sWorker.post(new Runnable() { 186 public void run() { 187 cr.update(uri, values, null, null); 188 ItemInfo modelItem = sItemsIdMap.get(item.id); 189 if (item != modelItem) { 190 // the modelItem needs to match up perfectly with item if our model is to be 191 // consistent with the database-- for now, just require modelItem == item 192 throw new RuntimeException("Error: ItemInfo passed to moveItemInDatabase " + 193 "doesn't match original"); 194 } 195 196 // Items are added/removed from the corresponding FolderInfo elsewhere, such 197 // as in Workspace.onDrop. Here, we just add/remove them from the list of items 198 // that are on the desktop, as appropriate 199 if (modelItem.container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 200 if (!sItems.contains(modelItem)) { 201 sItems.add(modelItem); 202 } 203 } else { 204 sItems.remove(modelItem); 205 } 206 } 207 }); 208 } 209 210 /** 211 * Resize an item in the DB to a new <spanX, spanY, cellX, cellY> 212 */ 213 static void resizeItemInDatabase(Context context, final ItemInfo item, final int cellX, 214 final int cellY, final int spanX, final int spanY) { 215 item.spanX = spanX; 216 item.spanY = spanY; 217 item.cellX = cellX; 218 item.cellY = cellY; 219 220 final Uri uri = LauncherSettings.Favorites.getContentUri(item.id, false); 221 final ContentValues values = new ContentValues(); 222 final ContentResolver cr = context.getContentResolver(); 223 224 values.put(LauncherSettings.Favorites.CONTAINER, item.container); 225 values.put(LauncherSettings.Favorites.SPANX, spanX); 226 values.put(LauncherSettings.Favorites.SPANY, spanY); 227 values.put(LauncherSettings.Favorites.CELLX, cellX); 228 values.put(LauncherSettings.Favorites.CELLY, cellY); 229 230 sWorker.post(new Runnable() { 231 public void run() { 232 cr.update(uri, values, null, null); 233 ItemInfo modelItem = sItemsIdMap.get(item.id); 234 if (item != modelItem) { 235 // the modelItem needs to match up perfectly with item if our model is to be 236 // consistent with the database-- for now, just require modelItem == item 237 throw new RuntimeException("Error: ItemInfo passed to moveItemInDatabase " + 238 "doesn't match original"); 239 } 240 } 241 }); 242 } 243 244 /** 245 * Returns true if the shortcuts already exists in the database. 246 * we identify a shortcut by its title and intent. 247 */ 248 static boolean shortcutExists(Context context, String title, Intent intent) { 249 final ContentResolver cr = context.getContentResolver(); 250 Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI, 251 new String[] { "title", "intent" }, "title=? and intent=?", 252 new String[] { title, intent.toUri(0) }, null); 253 boolean result = false; 254 try { 255 result = c.moveToFirst(); 256 } finally { 257 c.close(); 258 } 259 return result; 260 } 261 262 /** 263 * Returns an ItemInfo array containing all the items in the LauncherModel. 264 * The ItemInfo.id is not set through this function. 265 */ 266 static ArrayList<ItemInfo> getItemsInLocalCoordinates(Context context) { 267 ArrayList<ItemInfo> items = new ArrayList<ItemInfo>(); 268 final ContentResolver cr = context.getContentResolver(); 269 Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI, new String[] { 270 LauncherSettings.Favorites.ITEM_TYPE, LauncherSettings.Favorites.CONTAINER, 271 LauncherSettings.Favorites.SCREEN, LauncherSettings.Favorites.CELLX, LauncherSettings.Favorites.CELLY, 272 LauncherSettings.Favorites.SPANX, LauncherSettings.Favorites.SPANY }, null, null, null); 273 274 final int itemTypeIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.ITEM_TYPE); 275 final int containerIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CONTAINER); 276 final int screenIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SCREEN); 277 final int cellXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLX); 278 final int cellYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLY); 279 final int spanXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SPANX); 280 final int spanYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SPANY); 281 282 try { 283 while (c.moveToNext()) { 284 ItemInfo item = new ItemInfo(); 285 item.cellX = c.getInt(cellXIndex); 286 item.cellY = c.getInt(cellYIndex); 287 item.spanX = c.getInt(spanXIndex); 288 item.spanY = c.getInt(spanYIndex); 289 item.container = c.getInt(containerIndex); 290 item.itemType = c.getInt(itemTypeIndex); 291 item.screen = c.getInt(screenIndex); 292 293 items.add(item); 294 } 295 } catch (Exception e) { 296 items.clear(); 297 } finally { 298 c.close(); 299 } 300 301 return items; 302 } 303 304 /** 305 * Find a folder in the db, creating the FolderInfo if necessary, and adding it to folderList. 306 */ 307 FolderInfo getFolderById(Context context, HashMap<Long,FolderInfo> folderList, long id) { 308 final ContentResolver cr = context.getContentResolver(); 309 Cursor c = cr.query(LauncherSettings.Favorites.CONTENT_URI, null, 310 "_id=? and (itemType=? or itemType=?)", 311 new String[] { String.valueOf(id), 312 String.valueOf(LauncherSettings.Favorites.ITEM_TYPE_FOLDER)}, null); 313 314 try { 315 if (c.moveToFirst()) { 316 final int itemTypeIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.ITEM_TYPE); 317 final int titleIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.TITLE); 318 final int containerIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CONTAINER); 319 final int screenIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.SCREEN); 320 final int cellXIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLX); 321 final int cellYIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLY); 322 323 FolderInfo folderInfo = null; 324 switch (c.getInt(itemTypeIndex)) { 325 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 326 folderInfo = findOrMakeFolder(folderList, id); 327 break; 328 } 329 330 folderInfo.title = c.getString(titleIndex); 331 folderInfo.id = id; 332 folderInfo.container = c.getInt(containerIndex); 333 folderInfo.screen = c.getInt(screenIndex); 334 folderInfo.cellX = c.getInt(cellXIndex); 335 folderInfo.cellY = c.getInt(cellYIndex); 336 337 return folderInfo; 338 } 339 } finally { 340 c.close(); 341 } 342 343 return null; 344 } 345 346 /** 347 * Add an item to the database in a specified container. Sets the container, screen, cellX and 348 * cellY fields of the item. Also assigns an ID to the item. 349 */ 350 static void addItemToDatabase(Context context, final ItemInfo item, long container, 351 int screen, int cellX, int cellY, final boolean notify) { 352 item.container = container; 353 item.screen = screen; 354 item.cellX = cellX; 355 item.cellY = cellY; 356 357 final ContentValues values = new ContentValues(); 358 final ContentResolver cr = context.getContentResolver(); 359 item.onAddToDatabase(values); 360 361 Launcher l = (Launcher) context; 362 LauncherApplication app = (LauncherApplication) l.getApplication(); 363 item.id = app.getLauncherProvider().generateNewId(); 364 values.put(LauncherSettings.Favorites._ID, item.id); 365 item.updateValuesWithCoordinates(values, cellX, cellY); 366 367 sWorker.post(new Runnable() { 368 public void run() { 369 cr.insert(notify ? LauncherSettings.Favorites.CONTENT_URI : 370 LauncherSettings.Favorites.CONTENT_URI_NO_NOTIFICATION, values); 371 372 sItemsIdMap.put(item.id, item); 373 switch (item.itemType) { 374 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 375 sFolders.put(item.id, (FolderInfo) item); 376 if (item.container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 377 sItems.add(item); 378 } 379 break; 380 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 381 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 382 if (item.container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { 383 sItems.add(item); 384 } 385 break; 386 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 387 sAppWidgets.add((LauncherAppWidgetInfo) item); 388 break; 389 } 390 } 391 }); 392 } 393 394 /** 395 * Creates a new unique child id, for a given cell span across all layouts. 396 */ 397 static int getCellLayoutChildId( 398 int cellId, int screen, int localCellX, int localCellY, int spanX, int spanY) { 399 return ((cellId & 0xFF) << 24) 400 | (screen & 0xFF) << 16 | (localCellX & 0xFF) << 8 | (localCellY & 0xFF); 401 } 402 403 static int getCellCountX() { 404 return mCellCountX; 405 } 406 407 static int getCellCountY() { 408 return mCellCountY; 409 } 410 411 /** 412 * Updates the model orientation helper to take into account the current layout dimensions 413 * when performing local/canonical coordinate transformations. 414 */ 415 static void updateWorkspaceLayoutCells(int shortAxisCellCount, int longAxisCellCount) { 416 mCellCountX = shortAxisCellCount; 417 mCellCountY = longAxisCellCount; 418 } 419 420 /** 421 * Update an item to the database in a specified container. 422 */ 423 static void updateItemInDatabase(Context context, final ItemInfo item) { 424 final ContentValues values = new ContentValues(); 425 final ContentResolver cr = context.getContentResolver(); 426 427 item.onAddToDatabase(values); 428 item.updateValuesWithCoordinates(values, item.cellX, item.cellY); 429 430 sWorker.post(new Runnable() { 431 public void run() { 432 cr.update(LauncherSettings.Favorites.getContentUri(item.id, false), 433 values, null, null); 434 final ItemInfo modelItem = sItemsIdMap.get(item.id); 435 if (item != modelItem) { 436 // the modelItem needs to match up perfectly with item if our model is to be 437 // consistent with the database-- for now, just require modelItem == item 438 throw new RuntimeException("Error: ItemInfo passed to moveItemInDatabase " + 439 "doesn't match original"); 440 } 441 } 442 }); 443 } 444 445 /** 446 * Removes the specified item from the database 447 * @param context 448 * @param item 449 */ 450 static void deleteItemFromDatabase(Context context, final ItemInfo item) { 451 final ContentResolver cr = context.getContentResolver(); 452 final Uri uriToDelete = LauncherSettings.Favorites.getContentUri(item.id, false); 453 sWorker.post(new Runnable() { 454 public void run() { 455 cr.delete(uriToDelete, null, null); 456 switch (item.itemType) { 457 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 458 sFolders.remove(item.id); 459 sItems.remove(item); 460 break; 461 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 462 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 463 sItems.remove(item); 464 break; 465 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 466 sAppWidgets.remove((LauncherAppWidgetInfo) item); 467 break; 468 } 469 sItemsIdMap.remove(item.id); 470 } 471 }); 472 } 473 474 /** 475 * Remove the contents of the specified folder from the database 476 */ 477 static void deleteFolderContentsFromDatabase(Context context, final FolderInfo info) { 478 final ContentResolver cr = context.getContentResolver(); 479 480 sWorker.post(new Runnable() { 481 public void run() { 482 cr.delete(LauncherSettings.Favorites.getContentUri(info.id, false), null, null); 483 sItemsIdMap.remove(info.id); 484 sFolders.remove(info.id); 485 sItems.remove(info); 486 487 cr.delete(LauncherSettings.Favorites.CONTENT_URI, 488 LauncherSettings.Favorites.CONTAINER + "=" + info.id, null); 489 for (ItemInfo childInfo : info.contents) { 490 sItemsIdMap.remove(childInfo.id); 491 } 492 } 493 }); 494 } 495 496 /** 497 * Set this as the current Launcher activity object for the loader. 498 */ 499 public void initialize(Callbacks callbacks) { 500 synchronized (mLock) { 501 mCallbacks = new WeakReference<Callbacks>(callbacks); 502 } 503 } 504 505 /** 506 * Call from the handler for ACTION_PACKAGE_ADDED, ACTION_PACKAGE_REMOVED and 507 * ACTION_PACKAGE_CHANGED. 508 */ 509 public void onReceive(Context context, Intent intent) { 510 if (DEBUG_LOADERS) Log.d(TAG, "onReceive intent=" + intent); 511 512 final String action = intent.getAction(); 513 514 if (Intent.ACTION_PACKAGE_CHANGED.equals(action) 515 || Intent.ACTION_PACKAGE_REMOVED.equals(action) 516 || Intent.ACTION_PACKAGE_ADDED.equals(action)) { 517 final String packageName = intent.getData().getSchemeSpecificPart(); 518 final boolean replacing = intent.getBooleanExtra(Intent.EXTRA_REPLACING, false); 519 520 int op = PackageUpdatedTask.OP_NONE; 521 522 if (packageName == null || packageName.length() == 0) { 523 // they sent us a bad intent 524 return; 525 } 526 527 if (Intent.ACTION_PACKAGE_CHANGED.equals(action)) { 528 op = PackageUpdatedTask.OP_UPDATE; 529 } else if (Intent.ACTION_PACKAGE_REMOVED.equals(action)) { 530 if (!replacing) { 531 op = PackageUpdatedTask.OP_REMOVE; 532 } 533 // else, we are replacing the package, so a PACKAGE_ADDED will be sent 534 // later, we will update the package at this time 535 } else if (Intent.ACTION_PACKAGE_ADDED.equals(action)) { 536 if (!replacing) { 537 op = PackageUpdatedTask.OP_ADD; 538 } else { 539 op = PackageUpdatedTask.OP_UPDATE; 540 } 541 } 542 543 if (op != PackageUpdatedTask.OP_NONE) { 544 enqueuePackageUpdated(new PackageUpdatedTask(op, new String[] { packageName })); 545 } 546 547 } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_AVAILABLE.equals(action)) { 548 // First, schedule to add these apps back in. 549 String[] packages = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST); 550 enqueuePackageUpdated(new PackageUpdatedTask(PackageUpdatedTask.OP_ADD, packages)); 551 // Then, rebind everything. 552 startLoaderFromBackground(); 553 } else if (Intent.ACTION_EXTERNAL_APPLICATIONS_UNAVAILABLE.equals(action)) { 554 String[] packages = intent.getStringArrayExtra(Intent.EXTRA_CHANGED_PACKAGE_LIST); 555 enqueuePackageUpdated(new PackageUpdatedTask( 556 PackageUpdatedTask.OP_UNAVAILABLE, packages)); 557 } else if (Intent.ACTION_LOCALE_CHANGED.equals(action)) { 558 // If we have changed locale we need to clear out the labels in all apps. 559 // Do this here because if the launcher activity is running it will be restarted. 560 // If it's not running startLoaderFromBackground will merely tell it that it needs 561 // to reload. Either way, mAllAppsLoaded will be cleared so it re-reads everything 562 // next time. 563 mAllAppsLoaded = false; 564 startLoaderFromBackground(); 565 } 566 } 567 568 /** 569 * When the launcher is in the background, it's possible for it to miss paired 570 * configuration changes. So whenever we trigger the loader from the background 571 * tell the launcher that it needs to re-run the loader when it comes back instead 572 * of doing it now. 573 */ 574 public void startLoaderFromBackground() { 575 boolean runLoader = false; 576 if (mCallbacks != null) { 577 Callbacks callbacks = mCallbacks.get(); 578 if (callbacks != null) { 579 // Only actually run the loader if they're not paused. 580 if (!callbacks.setLoadOnResume()) { 581 runLoader = true; 582 } 583 } 584 } 585 if (runLoader) { 586 startLoader(mApp, false); 587 } 588 } 589 590 public void startLoader(Context context, boolean isLaunching) { 591 synchronized (mLock) { 592 if (DEBUG_LOADERS) { 593 Log.d(TAG, "startLoader isLaunching=" + isLaunching); 594 } 595 596 // Don't bother to start the thread if we know it's not going to do anything 597 if (mCallbacks != null && mCallbacks.get() != null) { 598 // If there is already one running, tell it to stop. 599 LoaderTask oldTask = mLoaderTask; 600 if (oldTask != null) { 601 if (oldTask.isLaunching()) { 602 // don't downgrade isLaunching if we're already running 603 isLaunching = true; 604 } 605 oldTask.stopLocked(); 606 } 607 mLoaderTask = new LoaderTask(context, isLaunching); 608 sWorker.post(mLoaderTask); 609 } 610 } 611 } 612 613 public void stopLoader() { 614 synchronized (mLock) { 615 if (mLoaderTask != null) { 616 mLoaderTask.stopLocked(); 617 } 618 } 619 } 620 621 /** 622 * Runnable for the thread that loads the contents of the launcher: 623 * - workspace icons 624 * - widgets 625 * - all apps icons 626 */ 627 private class LoaderTask implements Runnable { 628 private Context mContext; 629 private Thread mWaitThread; 630 private boolean mIsLaunching; 631 private boolean mStopped; 632 private boolean mLoadAndBindStepFinished; 633 634 LoaderTask(Context context, boolean isLaunching) { 635 mContext = context; 636 mIsLaunching = isLaunching; 637 } 638 639 boolean isLaunching() { 640 return mIsLaunching; 641 } 642 643 private void loadAndBindWorkspace() { 644 // Load the workspace 645 if (DEBUG_LOADERS) { 646 Log.d(TAG, "loadAndBindWorkspace mWorkspaceLoaded=" + mWorkspaceLoaded); 647 } 648 if (!mWorkspaceLoaded) { 649 loadWorkspace(); 650 if (mStopped) { 651 return; 652 } 653 mWorkspaceLoaded = true; 654 } 655 656 // Bind the workspace 657 bindWorkspace(); 658 } 659 660 private void waitForIdle() { 661 // Wait until the either we're stopped or the other threads are done. 662 // This way we don't start loading all apps until the workspace has settled 663 // down. 664 synchronized (LoaderTask.this) { 665 final long workspaceWaitTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 666 667 mHandler.postIdle(new Runnable() { 668 public void run() { 669 synchronized (LoaderTask.this) { 670 mLoadAndBindStepFinished = true; 671 if (DEBUG_LOADERS) { 672 Log.d(TAG, "done with previous binding step"); 673 } 674 LoaderTask.this.notify(); 675 } 676 } 677 }); 678 679 while (!mStopped && !mLoadAndBindStepFinished) { 680 try { 681 this.wait(); 682 } catch (InterruptedException ex) { 683 // Ignore 684 } 685 } 686 if (DEBUG_LOADERS) { 687 Log.d(TAG, "waited " 688 + (SystemClock.uptimeMillis()-workspaceWaitTime) 689 + "ms for previous step to finish binding"); 690 } 691 } 692 } 693 694 public void run() { 695 // Optimize for end-user experience: if the Launcher is up and // running with the 696 // All Apps interface in the foreground, load All Apps first. Otherwise, load the 697 // workspace first (default). 698 final Callbacks cbk = mCallbacks.get(); 699 final boolean loadWorkspaceFirst = cbk != null ? (!cbk.isAllAppsVisible()) : true; 700 701 keep_running: { 702 // Elevate priority when Home launches for the first time to avoid 703 // starving at boot time. Staring at a blank home is not cool. 704 synchronized (mLock) { 705 android.os.Process.setThreadPriority(mIsLaunching 706 ? Process.THREAD_PRIORITY_DEFAULT : Process.THREAD_PRIORITY_BACKGROUND); 707 } 708 if (loadWorkspaceFirst) { 709 if (DEBUG_LOADERS) Log.d(TAG, "step 1: loading workspace"); 710 loadAndBindWorkspace(); 711 } else { 712 if (DEBUG_LOADERS) Log.d(TAG, "step 1: special: loading all apps"); 713 loadAndBindAllApps(); 714 } 715 716 if (mStopped) { 717 break keep_running; 718 } 719 720 // Whew! Hard work done. Slow us down, and wait until the UI thread has 721 // settled down. 722 synchronized (mLock) { 723 if (mIsLaunching) { 724 android.os.Process.setThreadPriority(Process.THREAD_PRIORITY_BACKGROUND); 725 } 726 } 727 waitForIdle(); 728 729 // second step 730 if (loadWorkspaceFirst) { 731 if (DEBUG_LOADERS) Log.d(TAG, "step 2: loading all apps"); 732 loadAndBindAllApps(); 733 } else { 734 if (DEBUG_LOADERS) Log.d(TAG, "step 2: special: loading workspace"); 735 loadAndBindWorkspace(); 736 } 737 } 738 739 // Clear out this reference, otherwise we end up holding it until all of the 740 // callback runnables are done. 741 mContext = null; 742 743 synchronized (mLock) { 744 // If we are still the last one to be scheduled, remove ourselves. 745 if (mLoaderTask == this) { 746 mLoaderTask = null; 747 } 748 } 749 } 750 751 public void stopLocked() { 752 synchronized (LoaderTask.this) { 753 mStopped = true; 754 this.notify(); 755 } 756 } 757 758 /** 759 * Gets the callbacks object. If we've been stopped, or if the launcher object 760 * has somehow been garbage collected, return null instead. Pass in the Callbacks 761 * object that was around when the deferred message was scheduled, and if there's 762 * a new Callbacks object around then also return null. This will save us from 763 * calling onto it with data that will be ignored. 764 */ 765 Callbacks tryGetCallbacks(Callbacks oldCallbacks) { 766 synchronized (mLock) { 767 if (mStopped) { 768 return null; 769 } 770 771 if (mCallbacks == null) { 772 return null; 773 } 774 775 final Callbacks callbacks = mCallbacks.get(); 776 if (callbacks != oldCallbacks) { 777 return null; 778 } 779 if (callbacks == null) { 780 Log.w(TAG, "no mCallbacks"); 781 return null; 782 } 783 784 return callbacks; 785 } 786 } 787 788 // check & update map of what's occupied; used to discard overlapping/invalid items 789 private boolean checkItemPlacement(ItemInfo occupied[][][], ItemInfo item) { 790 if (item.container != LauncherSettings.Favorites.CONTAINER_DESKTOP) { 791 return true; 792 } 793 for (int x = item.cellX; x < (item.cellX+item.spanX); x++) { 794 for (int y = item.cellY; y < (item.cellY+item.spanY); y++) { 795 if (occupied[item.screen][x][y] != null) { 796 Log.e(TAG, "Error loading shortcut " + item 797 + " into cell (" + item.screen + ":" 798 + x + "," + y 799 + ") occupied by " 800 + occupied[item.screen][x][y]); 801 return false; 802 } 803 } 804 } 805 for (int x = item.cellX; x < (item.cellX+item.spanX); x++) { 806 for (int y = item.cellY; y < (item.cellY+item.spanY); y++) { 807 occupied[item.screen][x][y] = item; 808 } 809 } 810 return true; 811 } 812 813 private void loadWorkspace() { 814 final long t = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 815 816 final Context context = mContext; 817 final ContentResolver contentResolver = context.getContentResolver(); 818 final PackageManager manager = context.getPackageManager(); 819 final AppWidgetManager widgets = AppWidgetManager.getInstance(context); 820 final boolean isSafeMode = manager.isSafeMode(); 821 822 sItems.clear(); 823 sAppWidgets.clear(); 824 sFolders.clear(); 825 sItemsIdMap.clear(); 826 827 final ArrayList<Long> itemsToRemove = new ArrayList<Long>(); 828 829 final Cursor c = contentResolver.query( 830 LauncherSettings.Favorites.CONTENT_URI, null, null, null, null); 831 832 final ItemInfo occupied[][][] = 833 new ItemInfo[Launcher.SCREEN_COUNT][mCellCountX][mCellCountY]; 834 835 try { 836 final int idIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites._ID); 837 final int intentIndex = c.getColumnIndexOrThrow 838 (LauncherSettings.Favorites.INTENT); 839 final int titleIndex = c.getColumnIndexOrThrow 840 (LauncherSettings.Favorites.TITLE); 841 final int iconTypeIndex = c.getColumnIndexOrThrow( 842 LauncherSettings.Favorites.ICON_TYPE); 843 final int iconIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.ICON); 844 final int iconPackageIndex = c.getColumnIndexOrThrow( 845 LauncherSettings.Favorites.ICON_PACKAGE); 846 final int iconResourceIndex = c.getColumnIndexOrThrow( 847 LauncherSettings.Favorites.ICON_RESOURCE); 848 final int containerIndex = c.getColumnIndexOrThrow( 849 LauncherSettings.Favorites.CONTAINER); 850 final int itemTypeIndex = c.getColumnIndexOrThrow( 851 LauncherSettings.Favorites.ITEM_TYPE); 852 final int appWidgetIdIndex = c.getColumnIndexOrThrow( 853 LauncherSettings.Favorites.APPWIDGET_ID); 854 final int screenIndex = c.getColumnIndexOrThrow( 855 LauncherSettings.Favorites.SCREEN); 856 final int cellXIndex = c.getColumnIndexOrThrow 857 (LauncherSettings.Favorites.CELLX); 858 final int cellYIndex = c.getColumnIndexOrThrow 859 (LauncherSettings.Favorites.CELLY); 860 final int spanXIndex = c.getColumnIndexOrThrow 861 (LauncherSettings.Favorites.SPANX); 862 final int spanYIndex = c.getColumnIndexOrThrow( 863 LauncherSettings.Favorites.SPANY); 864 final int uriIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.URI); 865 final int displayModeIndex = c.getColumnIndexOrThrow( 866 LauncherSettings.Favorites.DISPLAY_MODE); 867 868 ShortcutInfo info; 869 String intentDescription; 870 LauncherAppWidgetInfo appWidgetInfo; 871 int container; 872 long id; 873 Intent intent; 874 875 while (!mStopped && c.moveToNext()) { 876 try { 877 int itemType = c.getInt(itemTypeIndex); 878 879 switch (itemType) { 880 case LauncherSettings.Favorites.ITEM_TYPE_APPLICATION: 881 case LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT: 882 intentDescription = c.getString(intentIndex); 883 try { 884 intent = Intent.parseUri(intentDescription, 0); 885 } catch (URISyntaxException e) { 886 continue; 887 } 888 889 if (itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION) { 890 info = getShortcutInfo(manager, intent, context, c, iconIndex, 891 titleIndex); 892 } else { 893 info = getShortcutInfo(c, context, iconTypeIndex, 894 iconPackageIndex, iconResourceIndex, iconIndex, 895 titleIndex); 896 } 897 898 if (info != null) { 899 info.intent = intent; 900 info.id = c.getLong(idIndex); 901 container = c.getInt(containerIndex); 902 info.container = container; 903 info.screen = c.getInt(screenIndex); 904 info.cellX = c.getInt(cellXIndex); 905 info.cellY = c.getInt(cellYIndex); 906 907 // check & update map of what's occupied 908 if (!checkItemPlacement(occupied, info)) { 909 break; 910 } 911 912 switch (container) { 913 case LauncherSettings.Favorites.CONTAINER_DESKTOP: 914 sItems.add(info); 915 break; 916 default: 917 // Item is in a user folder 918 FolderInfo folderInfo = 919 findOrMakeFolder(sFolders, container); 920 folderInfo.add(info); 921 break; 922 } 923 sItemsIdMap.put(info.id, info); 924 925 // now that we've loaded everthing re-save it with the 926 // icon in case it disappears somehow. 927 updateSavedIcon(context, info, c, iconIndex); 928 } else { 929 // Failed to load the shortcut, probably because the 930 // activity manager couldn't resolve it (maybe the app 931 // was uninstalled), or the db row was somehow screwed up. 932 // Delete it. 933 id = c.getLong(idIndex); 934 Log.e(TAG, "Error loading shortcut " + id + ", removing it"); 935 contentResolver.delete(LauncherSettings.Favorites.getContentUri( 936 id, false), null, null); 937 } 938 break; 939 940 case LauncherSettings.Favorites.ITEM_TYPE_FOLDER: 941 id = c.getLong(idIndex); 942 FolderInfo folderInfo = findOrMakeFolder(sFolders, id); 943 944 folderInfo.title = c.getString(titleIndex); 945 folderInfo.id = id; 946 container = c.getInt(containerIndex); 947 folderInfo.container = container; 948 folderInfo.screen = c.getInt(screenIndex); 949 folderInfo.cellX = c.getInt(cellXIndex); 950 folderInfo.cellY = c.getInt(cellYIndex); 951 952 // check & update map of what's occupied 953 if (!checkItemPlacement(occupied, folderInfo)) { 954 break; 955 } 956 switch (container) { 957 case LauncherSettings.Favorites.CONTAINER_DESKTOP: 958 sItems.add(folderInfo); 959 break; 960 } 961 962 sItemsIdMap.put(folderInfo.id, folderInfo); 963 sFolders.put(folderInfo.id, folderInfo); 964 break; 965 966 case LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET: 967 // Read all Launcher-specific widget details 968 int appWidgetId = c.getInt(appWidgetIdIndex); 969 id = c.getLong(idIndex); 970 971 final AppWidgetProviderInfo provider = 972 widgets.getAppWidgetInfo(appWidgetId); 973 974 if (!isSafeMode && (provider == null || provider.provider == null || 975 provider.provider.getPackageName() == null)) { 976 Log.e(TAG, "Deleting widget that isn't installed anymore: id=" 977 + id + " appWidgetId=" + appWidgetId); 978 itemsToRemove.add(id); 979 } else { 980 appWidgetInfo = new LauncherAppWidgetInfo(appWidgetId); 981 appWidgetInfo.id = id; 982 appWidgetInfo.screen = c.getInt(screenIndex); 983 appWidgetInfo.cellX = c.getInt(cellXIndex); 984 appWidgetInfo.cellY = c.getInt(cellYIndex); 985 appWidgetInfo.spanX = c.getInt(spanXIndex); 986 appWidgetInfo.spanY = c.getInt(spanYIndex); 987 988 container = c.getInt(containerIndex); 989 if (container != LauncherSettings.Favorites.CONTAINER_DESKTOP) { 990 Log.e(TAG, "Widget found where container " 991 + "!= CONTAINER_DESKTOP -- ignoring!"); 992 continue; 993 } 994 appWidgetInfo.container = c.getInt(containerIndex); 995 996 // check & update map of what's occupied 997 if (!checkItemPlacement(occupied, appWidgetInfo)) { 998 break; 999 } 1000 sItemsIdMap.put(appWidgetInfo.id, appWidgetInfo); 1001 sAppWidgets.add(appWidgetInfo); 1002 } 1003 break; 1004 } 1005 } catch (Exception e) { 1006 Log.w(TAG, "Desktop items loading interrupted:", e); 1007 } 1008 } 1009 } finally { 1010 c.close(); 1011 } 1012 1013 if (itemsToRemove.size() > 0) { 1014 ContentProviderClient client = contentResolver.acquireContentProviderClient( 1015 LauncherSettings.Favorites.CONTENT_URI); 1016 // Remove dead items 1017 for (long id : itemsToRemove) { 1018 if (DEBUG_LOADERS) { 1019 Log.d(TAG, "Removed id = " + id); 1020 } 1021 // Don't notify content observers 1022 try { 1023 client.delete(LauncherSettings.Favorites.getContentUri(id, false), 1024 null, null); 1025 } catch (RemoteException e) { 1026 Log.w(TAG, "Could not remove id = " + id); 1027 } 1028 } 1029 } 1030 1031 if (DEBUG_LOADERS) { 1032 Log.d(TAG, "loaded workspace in " + (SystemClock.uptimeMillis()-t) + "ms"); 1033 Log.d(TAG, "workspace layout: "); 1034 for (int y = 0; y < mCellCountY; y++) { 1035 String line = ""; 1036 for (int s = 0; s < Launcher.SCREEN_COUNT; s++) { 1037 if (s > 0) { 1038 line += " | "; 1039 } 1040 for (int x = 0; x < mCellCountX; x++) { 1041 line += ((occupied[s][x][y] != null) ? "#" : "."); 1042 } 1043 } 1044 Log.d(TAG, "[ " + line + " ]"); 1045 } 1046 } 1047 } 1048 1049 /** 1050 * Read everything out of our database. 1051 */ 1052 private void bindWorkspace() { 1053 final long t = SystemClock.uptimeMillis(); 1054 1055 // Don't use these two variables in any of the callback runnables. 1056 // Otherwise we hold a reference to them. 1057 final Callbacks oldCallbacks = mCallbacks.get(); 1058 if (oldCallbacks == null) { 1059 // This launcher has exited and nobody bothered to tell us. Just bail. 1060 Log.w(TAG, "LoaderTask running with no launcher"); 1061 return; 1062 } 1063 1064 int N; 1065 // Tell the workspace that we're about to start firing items at it 1066 mHandler.post(new Runnable() { 1067 public void run() { 1068 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 1069 if (callbacks != null) { 1070 callbacks.startBinding(); 1071 } 1072 } 1073 }); 1074 // Add the items to the workspace. 1075 N = sItems.size(); 1076 for (int i=0; i<N; i+=ITEMS_CHUNK) { 1077 final int start = i; 1078 final int chunkSize = (i+ITEMS_CHUNK <= N) ? ITEMS_CHUNK : (N-i); 1079 mHandler.post(new Runnable() { 1080 public void run() { 1081 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 1082 if (callbacks != null) { 1083 callbacks.bindItems(sItems, start, start+chunkSize); 1084 } 1085 } 1086 }); 1087 } 1088 mHandler.post(new Runnable() { 1089 public void run() { 1090 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 1091 if (callbacks != null) { 1092 callbacks.bindFolders(sFolders); 1093 } 1094 } 1095 }); 1096 // Wait until the queue goes empty. 1097 mHandler.post(new Runnable() { 1098 public void run() { 1099 if (DEBUG_LOADERS) { 1100 Log.d(TAG, "Going to start binding widgets soon."); 1101 } 1102 } 1103 }); 1104 // Bind the widgets, one at a time. 1105 // WARNING: this is calling into the workspace from the background thread, 1106 // but since getCurrentScreen() just returns the int, we should be okay. This 1107 // is just a hint for the order, and if it's wrong, we'll be okay. 1108 // TODO: instead, we should have that push the current screen into here. 1109 final int currentScreen = oldCallbacks.getCurrentWorkspaceScreen(); 1110 N = sAppWidgets.size(); 1111 // once for the current screen 1112 for (int i=0; i<N; i++) { 1113 final LauncherAppWidgetInfo widget = sAppWidgets.get(i); 1114 if (widget.screen == currentScreen) { 1115 mHandler.post(new Runnable() { 1116 public void run() { 1117 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 1118 if (callbacks != null) { 1119 callbacks.bindAppWidget(widget); 1120 } 1121 } 1122 }); 1123 } 1124 } 1125 // once for the other screens 1126 for (int i=0; i<N; i++) { 1127 final LauncherAppWidgetInfo widget = sAppWidgets.get(i); 1128 if (widget.screen != currentScreen) { 1129 mHandler.post(new Runnable() { 1130 public void run() { 1131 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 1132 if (callbacks != null) { 1133 callbacks.bindAppWidget(widget); 1134 } 1135 } 1136 }); 1137 } 1138 } 1139 // Tell the workspace that we're done. 1140 mHandler.post(new Runnable() { 1141 public void run() { 1142 Callbacks callbacks = tryGetCallbacks(oldCallbacks); 1143 if (callbacks != null) { 1144 callbacks.finishBindingItems(); 1145 } 1146 } 1147 }); 1148 // If we're profiling, this is the last thing in the queue. 1149 mHandler.post(new Runnable() { 1150 public void run() { 1151 if (DEBUG_LOADERS) { 1152 Log.d(TAG, "bound workspace in " 1153 + (SystemClock.uptimeMillis()-t) + "ms"); 1154 } 1155 } 1156 }); 1157 } 1158 1159 private void loadAndBindAllApps() { 1160 if (DEBUG_LOADERS) { 1161 Log.d(TAG, "loadAndBindAllApps mAllAppsLoaded=" + mAllAppsLoaded); 1162 } 1163 if (!mAllAppsLoaded) { 1164 loadAllAppsByBatch(); 1165 if (mStopped) { 1166 return; 1167 } 1168 mAllAppsLoaded = true; 1169 } else { 1170 onlyBindAllApps(); 1171 } 1172 } 1173 1174 private void onlyBindAllApps() { 1175 final Callbacks oldCallbacks = mCallbacks.get(); 1176 if (oldCallbacks == null) { 1177 // This launcher has exited and nobody bothered to tell us. Just bail. 1178 Log.w(TAG, "LoaderTask running with no launcher (onlyBindAllApps)"); 1179 return; 1180 } 1181 1182 // shallow copy 1183 final ArrayList<ApplicationInfo> list 1184 = (ArrayList<ApplicationInfo>)mAllAppsList.data.clone(); 1185 mHandler.post(new Runnable() { 1186 public void run() { 1187 final long t = SystemClock.uptimeMillis(); 1188 final Callbacks callbacks = tryGetCallbacks(oldCallbacks); 1189 if (callbacks != null) { 1190 callbacks.bindAllApplications(list); 1191 } 1192 if (DEBUG_LOADERS) { 1193 Log.d(TAG, "bound all " + list.size() + " apps from cache in " 1194 + (SystemClock.uptimeMillis()-t) + "ms"); 1195 } 1196 } 1197 }); 1198 1199 } 1200 1201 private void loadAllAppsByBatch() { 1202 final long t = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 1203 1204 // Don't use these two variables in any of the callback runnables. 1205 // Otherwise we hold a reference to them. 1206 final Callbacks oldCallbacks = mCallbacks.get(); 1207 if (oldCallbacks == null) { 1208 // This launcher has exited and nobody bothered to tell us. Just bail. 1209 Log.w(TAG, "LoaderTask running with no launcher (loadAllAppsByBatch)"); 1210 return; 1211 } 1212 1213 final Intent mainIntent = new Intent(Intent.ACTION_MAIN, null); 1214 mainIntent.addCategory(Intent.CATEGORY_LAUNCHER); 1215 1216 final PackageManager packageManager = mContext.getPackageManager(); 1217 List<ResolveInfo> apps = null; 1218 1219 int N = Integer.MAX_VALUE; 1220 1221 int startIndex; 1222 int i=0; 1223 int batchSize = -1; 1224 while (i < N && !mStopped) { 1225 if (i == 0) { 1226 mAllAppsList.clear(); 1227 final long qiaTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 1228 apps = packageManager.queryIntentActivities(mainIntent, 0); 1229 if (DEBUG_LOADERS) { 1230 Log.d(TAG, "queryIntentActivities took " 1231 + (SystemClock.uptimeMillis()-qiaTime) + "ms"); 1232 } 1233 if (apps == null) { 1234 return; 1235 } 1236 N = apps.size(); 1237 if (DEBUG_LOADERS) { 1238 Log.d(TAG, "queryIntentActivities got " + N + " apps"); 1239 } 1240 if (N == 0) { 1241 // There are no apps?!? 1242 return; 1243 } 1244 if (mBatchSize == 0) { 1245 batchSize = N; 1246 } else { 1247 batchSize = mBatchSize; 1248 } 1249 1250 final long sortTime = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 1251 Collections.sort(apps, 1252 new ResolveInfo.DisplayNameComparator(packageManager)); 1253 if (DEBUG_LOADERS) { 1254 Log.d(TAG, "sort took " 1255 + (SystemClock.uptimeMillis()-sortTime) + "ms"); 1256 } 1257 } 1258 1259 final long t2 = DEBUG_LOADERS ? SystemClock.uptimeMillis() : 0; 1260 1261 startIndex = i; 1262 for (int j=0; i<N && j<batchSize; j++) { 1263 // This builds the icon bitmaps. 1264 mAllAppsList.add(new ApplicationInfo(packageManager, apps.get(i), mIconCache)); 1265 i++; 1266 } 1267 1268 final boolean first = i <= batchSize; 1269 final Callbacks callbacks = tryGetCallbacks(oldCallbacks); 1270 final ArrayList<ApplicationInfo> added = mAllAppsList.added; 1271 mAllAppsList.added = new ArrayList<ApplicationInfo>(); 1272 1273 mHandler.post(new Runnable() { 1274 public void run() { 1275 final long t = SystemClock.uptimeMillis(); 1276 if (callbacks != null) { 1277 if (first) { 1278 callbacks.bindAllApplications(added); 1279 } else { 1280 callbacks.bindAppsAdded(added); 1281 } 1282 if (DEBUG_LOADERS) { 1283 Log.d(TAG, "bound " + added.size() + " apps in " 1284 + (SystemClock.uptimeMillis() - t) + "ms"); 1285 } 1286 } else { 1287 Log.i(TAG, "not binding apps: no Launcher activity"); 1288 } 1289 } 1290 }); 1291 1292 if (DEBUG_LOADERS) { 1293 Log.d(TAG, "batch of " + (i-startIndex) + " icons processed in " 1294 + (SystemClock.uptimeMillis()-t2) + "ms"); 1295 } 1296 1297 if (mAllAppsLoadDelay > 0 && i < N) { 1298 try { 1299 if (DEBUG_LOADERS) { 1300 Log.d(TAG, "sleeping for " + mAllAppsLoadDelay + "ms"); 1301 } 1302 Thread.sleep(mAllAppsLoadDelay); 1303 } catch (InterruptedException exc) { } 1304 } 1305 } 1306 1307 if (DEBUG_LOADERS) { 1308 Log.d(TAG, "cached all " + N + " apps in " 1309 + (SystemClock.uptimeMillis()-t) + "ms" 1310 + (mAllAppsLoadDelay > 0 ? " (including delay)" : "")); 1311 } 1312 } 1313 1314 public void dumpState() { 1315 Log.d(TAG, "mLoaderTask.mContext=" + mContext); 1316 Log.d(TAG, "mLoaderTask.mWaitThread=" + mWaitThread); 1317 Log.d(TAG, "mLoaderTask.mIsLaunching=" + mIsLaunching); 1318 Log.d(TAG, "mLoaderTask.mStopped=" + mStopped); 1319 Log.d(TAG, "mLoaderTask.mLoadAndBindStepFinished=" + mLoadAndBindStepFinished); 1320 Log.d(TAG, "mItems size=" + sItems.size()); 1321 } 1322 } 1323 1324 void enqueuePackageUpdated(PackageUpdatedTask task) { 1325 sWorker.post(task); 1326 } 1327 1328 private class PackageUpdatedTask implements Runnable { 1329 int mOp; 1330 String[] mPackages; 1331 1332 public static final int OP_NONE = 0; 1333 public static final int OP_ADD = 1; 1334 public static final int OP_UPDATE = 2; 1335 public static final int OP_REMOVE = 3; // uninstlled 1336 public static final int OP_UNAVAILABLE = 4; // external media unmounted 1337 1338 1339 public PackageUpdatedTask(int op, String[] packages) { 1340 mOp = op; 1341 mPackages = packages; 1342 } 1343 1344 public void run() { 1345 final Context context = mApp; 1346 1347 final String[] packages = mPackages; 1348 final int N = packages.length; 1349 switch (mOp) { 1350 case OP_ADD: 1351 for (int i=0; i<N; i++) { 1352 if (DEBUG_LOADERS) Log.d(TAG, "mAllAppsList.addPackage " + packages[i]); 1353 mAllAppsList.addPackage(context, packages[i]); 1354 } 1355 break; 1356 case OP_UPDATE: 1357 for (int i=0; i<N; i++) { 1358 if (DEBUG_LOADERS) Log.d(TAG, "mAllAppsList.updatePackage " + packages[i]); 1359 mAllAppsList.updatePackage(context, packages[i]); 1360 } 1361 break; 1362 case OP_REMOVE: 1363 case OP_UNAVAILABLE: 1364 for (int i=0; i<N; i++) { 1365 if (DEBUG_LOADERS) Log.d(TAG, "mAllAppsList.removePackage " + packages[i]); 1366 mAllAppsList.removePackage(packages[i]); 1367 } 1368 break; 1369 } 1370 1371 ArrayList<ApplicationInfo> added = null; 1372 ArrayList<ApplicationInfo> removed = null; 1373 ArrayList<ApplicationInfo> modified = null; 1374 1375 if (mAllAppsList.added.size() > 0) { 1376 added = mAllAppsList.added; 1377 mAllAppsList.added = new ArrayList<ApplicationInfo>(); 1378 } 1379 if (mAllAppsList.removed.size() > 0) { 1380 removed = mAllAppsList.removed; 1381 mAllAppsList.removed = new ArrayList<ApplicationInfo>(); 1382 for (ApplicationInfo info: removed) { 1383 mIconCache.remove(info.intent.getComponent()); 1384 } 1385 } 1386 if (mAllAppsList.modified.size() > 0) { 1387 modified = mAllAppsList.modified; 1388 mAllAppsList.modified = new ArrayList<ApplicationInfo>(); 1389 } 1390 1391 final Callbacks callbacks = mCallbacks != null ? mCallbacks.get() : null; 1392 if (callbacks == null) { 1393 Log.w(TAG, "Nobody to tell about the new app. Launcher is probably loading."); 1394 return; 1395 } 1396 1397 if (added != null) { 1398 final ArrayList<ApplicationInfo> addedFinal = added; 1399 mHandler.post(new Runnable() { 1400 public void run() { 1401 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 1402 if (callbacks == cb && cb != null) { 1403 callbacks.bindAppsAdded(addedFinal); 1404 } 1405 } 1406 }); 1407 } 1408 if (modified != null) { 1409 final ArrayList<ApplicationInfo> modifiedFinal = modified; 1410 mHandler.post(new Runnable() { 1411 public void run() { 1412 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 1413 if (callbacks == cb && cb != null) { 1414 callbacks.bindAppsUpdated(modifiedFinal); 1415 } 1416 } 1417 }); 1418 } 1419 if (removed != null) { 1420 final boolean permanent = mOp != OP_UNAVAILABLE; 1421 final ArrayList<ApplicationInfo> removedFinal = removed; 1422 mHandler.post(new Runnable() { 1423 public void run() { 1424 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 1425 if (callbacks == cb && cb != null) { 1426 callbacks.bindAppsRemoved(removedFinal, permanent); 1427 } 1428 } 1429 }); 1430 } 1431 1432 mHandler.post(new Runnable() { 1433 @Override 1434 public void run() { 1435 Callbacks cb = mCallbacks != null ? mCallbacks.get() : null; 1436 if (callbacks == cb && cb != null) { 1437 callbacks.bindPackagesUpdated(); 1438 } 1439 } 1440 }); 1441 } 1442 } 1443 1444 /** 1445 * This is called from the code that adds shortcuts from the intent receiver. This 1446 * doesn't have a Cursor, but 1447 */ 1448 public ShortcutInfo getShortcutInfo(PackageManager manager, Intent intent, Context context) { 1449 return getShortcutInfo(manager, intent, context, null, -1, -1); 1450 } 1451 1452 /** 1453 * Make an ShortcutInfo object for a shortcut that is an application. 1454 * 1455 * If c is not null, then it will be used to fill in missing data like the title and icon. 1456 */ 1457 public ShortcutInfo getShortcutInfo(PackageManager manager, Intent intent, Context context, 1458 Cursor c, int iconIndex, int titleIndex) { 1459 Bitmap icon = null; 1460 final ShortcutInfo info = new ShortcutInfo(); 1461 1462 ComponentName componentName = intent.getComponent(); 1463 if (componentName == null) { 1464 return null; 1465 } 1466 1467 // TODO: See if the PackageManager knows about this case. If it doesn't 1468 // then return null & delete this. 1469 1470 // the resource -- This may implicitly give us back the fallback icon, 1471 // but don't worry about that. All we're doing with usingFallbackIcon is 1472 // to avoid saving lots of copies of that in the database, and most apps 1473 // have icons anyway. 1474 final ResolveInfo resolveInfo = manager.resolveActivity(intent, 0); 1475 if (resolveInfo != null) { 1476 icon = mIconCache.getIcon(componentName, resolveInfo); 1477 } 1478 // the db 1479 if (icon == null) { 1480 if (c != null) { 1481 icon = getIconFromCursor(c, iconIndex); 1482 } 1483 } 1484 // the fallback icon 1485 if (icon == null) { 1486 icon = getFallbackIcon(); 1487 info.usingFallbackIcon = true; 1488 } 1489 info.setIcon(icon); 1490 1491 // from the resource 1492 if (resolveInfo != null) { 1493 info.title = resolveInfo.activityInfo.loadLabel(manager); 1494 } 1495 // from the db 1496 if (info.title == null) { 1497 if (c != null) { 1498 info.title = c.getString(titleIndex); 1499 } 1500 } 1501 // fall back to the class name of the activity 1502 if (info.title == null) { 1503 info.title = componentName.getClassName(); 1504 } 1505 info.itemType = LauncherSettings.Favorites.ITEM_TYPE_APPLICATION; 1506 return info; 1507 } 1508 1509 /** 1510 * Make an ShortcutInfo object for a shortcut that isn't an application. 1511 */ 1512 private ShortcutInfo getShortcutInfo(Cursor c, Context context, 1513 int iconTypeIndex, int iconPackageIndex, int iconResourceIndex, int iconIndex, 1514 int titleIndex) { 1515 1516 Bitmap icon = null; 1517 final ShortcutInfo info = new ShortcutInfo(); 1518 info.itemType = LauncherSettings.Favorites.ITEM_TYPE_SHORTCUT; 1519 1520 // TODO: If there's an explicit component and we can't install that, delete it. 1521 1522 info.title = c.getString(titleIndex); 1523 1524 int iconType = c.getInt(iconTypeIndex); 1525 switch (iconType) { 1526 case LauncherSettings.Favorites.ICON_TYPE_RESOURCE: 1527 String packageName = c.getString(iconPackageIndex); 1528 String resourceName = c.getString(iconResourceIndex); 1529 PackageManager packageManager = context.getPackageManager(); 1530 info.customIcon = false; 1531 // the resource 1532 try { 1533 Resources resources = packageManager.getResourcesForApplication(packageName); 1534 if (resources != null) { 1535 final int id = resources.getIdentifier(resourceName, null, null); 1536 icon = Utilities.createIconBitmap( 1537 mIconCache.getFullResIcon(resources, id), context); 1538 } 1539 } catch (Exception e) { 1540 // drop this. we have other places to look for icons 1541 } 1542 // the db 1543 if (icon == null) { 1544 icon = getIconFromCursor(c, iconIndex); 1545 } 1546 // the fallback icon 1547 if (icon == null) { 1548 icon = getFallbackIcon(); 1549 info.usingFallbackIcon = true; 1550 } 1551 break; 1552 case LauncherSettings.Favorites.ICON_TYPE_BITMAP: 1553 icon = getIconFromCursor(c, iconIndex); 1554 if (icon == null) { 1555 icon = getFallbackIcon(); 1556 info.customIcon = false; 1557 info.usingFallbackIcon = true; 1558 } else { 1559 info.customIcon = true; 1560 } 1561 break; 1562 default: 1563 icon = getFallbackIcon(); 1564 info.usingFallbackIcon = true; 1565 info.customIcon = false; 1566 break; 1567 } 1568 info.setIcon(icon); 1569 return info; 1570 } 1571 1572 Bitmap getIconFromCursor(Cursor c, int iconIndex) { 1573 if (false) { 1574 Log.d(TAG, "getIconFromCursor app=" 1575 + c.getString(c.getColumnIndexOrThrow(LauncherSettings.Favorites.TITLE))); 1576 } 1577 byte[] data = c.getBlob(iconIndex); 1578 try { 1579 return BitmapFactory.decodeByteArray(data, 0, data.length); 1580 } catch (Exception e) { 1581 return null; 1582 } 1583 } 1584 1585 ShortcutInfo addShortcut(Context context, Intent data, 1586 int screen, int cellX, int cellY, boolean notify) { 1587 1588 final ShortcutInfo info = infoFromShortcutIntent(context, data, null); 1589 addItemToDatabase(context, info, LauncherSettings.Favorites.CONTAINER_DESKTOP, 1590 screen, cellX, cellY, notify); 1591 1592 return info; 1593 } 1594 1595 /** 1596 * Attempts to find an AppWidgetProviderInfo that matches the given component. 1597 */ 1598 AppWidgetProviderInfo findAppWidgetProviderInfoWithComponent(Context context, 1599 ComponentName component) { 1600 List<AppWidgetProviderInfo> widgets = 1601 AppWidgetManager.getInstance(context).getInstalledProviders(); 1602 for (AppWidgetProviderInfo info : widgets) { 1603 if (info.provider.equals(component)) { 1604 return info; 1605 } 1606 } 1607 return null; 1608 } 1609 1610 /** 1611 * Returns a list of all the widgets that can handle configuration with a particular mimeType. 1612 */ 1613 List<WidgetMimeTypeHandlerData> resolveWidgetsForMimeType(Context context, String mimeType) { 1614 final PackageManager packageManager = context.getPackageManager(); 1615 final List<WidgetMimeTypeHandlerData> supportedConfigurationActivities = 1616 new ArrayList<WidgetMimeTypeHandlerData>(); 1617 1618 final Intent supportsIntent = 1619 new Intent(InstallWidgetReceiver.ACTION_SUPPORTS_CLIPDATA_MIMETYPE); 1620 supportsIntent.setType(mimeType); 1621 1622 // Create a set of widget configuration components that we can test against 1623 final List<AppWidgetProviderInfo> widgets = 1624 AppWidgetManager.getInstance(context).getInstalledProviders(); 1625 final HashMap<ComponentName, AppWidgetProviderInfo> configurationComponentToWidget = 1626 new HashMap<ComponentName, AppWidgetProviderInfo>(); 1627 for (AppWidgetProviderInfo info : widgets) { 1628 configurationComponentToWidget.put(info.configure, info); 1629 } 1630 1631 // Run through each of the intents that can handle this type of clip data, and cross 1632 // reference them with the components that are actual configuration components 1633 final List<ResolveInfo> activities = packageManager.queryIntentActivities(supportsIntent, 1634 PackageManager.MATCH_DEFAULT_ONLY); 1635 for (ResolveInfo info : activities) { 1636 final ActivityInfo activityInfo = info.activityInfo; 1637 final ComponentName infoComponent = new ComponentName(activityInfo.packageName, 1638 activityInfo.name); 1639 if (configurationComponentToWidget.containsKey(infoComponent)) { 1640 supportedConfigurationActivities.add( 1641 new InstallWidgetReceiver.WidgetMimeTypeHandlerData(info, 1642 configurationComponentToWidget.get(infoComponent))); 1643 } 1644 } 1645 return supportedConfigurationActivities; 1646 } 1647 1648 ShortcutInfo infoFromShortcutIntent(Context context, Intent data, Bitmap fallbackIcon) { 1649 Intent intent = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_INTENT); 1650 String name = data.getStringExtra(Intent.EXTRA_SHORTCUT_NAME); 1651 Parcelable bitmap = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON); 1652 1653 Bitmap icon = null; 1654 boolean customIcon = false; 1655 ShortcutIconResource iconResource = null; 1656 1657 if (bitmap != null && bitmap instanceof Bitmap) { 1658 icon = Utilities.createIconBitmap(new FastBitmapDrawable((Bitmap)bitmap), context); 1659 customIcon = true; 1660 } else { 1661 Parcelable extra = data.getParcelableExtra(Intent.EXTRA_SHORTCUT_ICON_RESOURCE); 1662 if (extra != null && extra instanceof ShortcutIconResource) { 1663 try { 1664 iconResource = (ShortcutIconResource) extra; 1665 final PackageManager packageManager = context.getPackageManager(); 1666 Resources resources = packageManager.getResourcesForApplication( 1667 iconResource.packageName); 1668 final int id = resources.getIdentifier(iconResource.resourceName, null, null); 1669 icon = Utilities.createIconBitmap( 1670 mIconCache.getFullResIcon(resources, id), context); 1671 } catch (Exception e) { 1672 Log.w(TAG, "Could not load shortcut icon: " + extra); 1673 } 1674 } 1675 } 1676 1677 final ShortcutInfo info = new ShortcutInfo(); 1678 1679 if (icon == null) { 1680 if (fallbackIcon != null) { 1681 icon = fallbackIcon; 1682 } else { 1683 icon = getFallbackIcon(); 1684 info.usingFallbackIcon = true; 1685 } 1686 } 1687 info.setIcon(icon); 1688 1689 info.title = name; 1690 info.intent = intent; 1691 info.customIcon = customIcon; 1692 info.iconResource = iconResource; 1693 1694 return info; 1695 } 1696 1697 void updateSavedIcon(Context context, ShortcutInfo info, Cursor c, int iconIndex) { 1698 // If apps can't be on SD, don't even bother. 1699 if (!mAppsCanBeOnExternalStorage) { 1700 return; 1701 } 1702 // If this icon doesn't have a custom icon, check to see 1703 // what's stored in the DB, and if it doesn't match what 1704 // we're going to show, store what we are going to show back 1705 // into the DB. We do this so when we're loading, if the 1706 // package manager can't find an icon (for example because 1707 // the app is on SD) then we can use that instead. 1708 if (!info.customIcon && !info.usingFallbackIcon) { 1709 boolean needSave; 1710 byte[] data = c.getBlob(iconIndex); 1711 try { 1712 if (data != null) { 1713 Bitmap saved = BitmapFactory.decodeByteArray(data, 0, data.length); 1714 Bitmap loaded = info.getIcon(mIconCache); 1715 needSave = !saved.sameAs(loaded); 1716 } else { 1717 needSave = true; 1718 } 1719 } catch (Exception e) { 1720 needSave = true; 1721 } 1722 if (needSave) { 1723 Log.d(TAG, "going to save icon bitmap for info=" + info); 1724 // This is slower than is ideal, but this only happens once 1725 // or when the app is updated with a new icon. 1726 updateItemInDatabase(context, info); 1727 } 1728 } 1729 } 1730 1731 /** 1732 * Return an existing FolderInfo object if we have encountered this ID previously, 1733 * or make a new one. 1734 */ 1735 private static FolderInfo findOrMakeFolder(HashMap<Long, FolderInfo> folders, long id) { 1736 // See if a placeholder was created for us already 1737 FolderInfo folderInfo = folders.get(id); 1738 if (folderInfo == null) { 1739 // No placeholder -- create a new instance 1740 folderInfo = new FolderInfo(); 1741 folders.put(id, folderInfo); 1742 } 1743 return folderInfo; 1744 } 1745 1746 private static final Collator sCollator = Collator.getInstance(); 1747 public static final Comparator<ApplicationInfo> APP_NAME_COMPARATOR 1748 = new Comparator<ApplicationInfo>() { 1749 public final int compare(ApplicationInfo a, ApplicationInfo b) { 1750 return sCollator.compare(a.title.toString(), b.title.toString()); 1751 } 1752 }; 1753 public static final Comparator<ApplicationInfo> APP_INSTALL_TIME_COMPARATOR 1754 = new Comparator<ApplicationInfo>() { 1755 public final int compare(ApplicationInfo a, ApplicationInfo b) { 1756 if (a.firstInstallTime < b.firstInstallTime) return 1; 1757 if (a.firstInstallTime > b.firstInstallTime) return -1; 1758 return 0; 1759 } 1760 }; 1761 public static final Comparator<AppWidgetProviderInfo> WIDGET_NAME_COMPARATOR 1762 = new Comparator<AppWidgetProviderInfo>() { 1763 public final int compare(AppWidgetProviderInfo a, AppWidgetProviderInfo b) { 1764 return sCollator.compare(a.label.toString(), b.label.toString()); 1765 } 1766 }; 1767 public static class ShortcutNameComparator implements Comparator<ResolveInfo> { 1768 private PackageManager mPackageManager; 1769 private HashMap<Object, String> mLabelCache; 1770 ShortcutNameComparator(PackageManager pm) { 1771 mPackageManager = pm; 1772 mLabelCache = new HashMap<Object, String>(); 1773 } 1774 public final int compare(ResolveInfo a, ResolveInfo b) { 1775 String labelA, labelB; 1776 if (mLabelCache.containsKey(a)) labelA = mLabelCache.get(a); 1777 else labelA = a.loadLabel(mPackageManager).toString(); 1778 if (mLabelCache.containsKey(b)) labelB = mLabelCache.get(b); 1779 else labelB = b.loadLabel(mPackageManager).toString(); 1780 return sCollator.compare(labelA, labelB); 1781 } 1782 }; 1783 public static class WidgetAndShortcutNameComparator implements Comparator<Object> { 1784 private PackageManager mPackageManager; 1785 private HashMap<Object, String> mLabelCache; 1786 WidgetAndShortcutNameComparator(PackageManager pm) { 1787 mPackageManager = pm; 1788 mLabelCache = new HashMap<Object, String>(); 1789 } 1790 public final int compare(Object a, Object b) { 1791 String labelA, labelB; 1792 if (mLabelCache.containsKey(a)) labelA = mLabelCache.get(a); 1793 else labelA = (a instanceof AppWidgetProviderInfo) ? 1794 ((AppWidgetProviderInfo) a).label : 1795 ((ResolveInfo) a).loadLabel(mPackageManager).toString(); 1796 if (mLabelCache.containsKey(b)) labelB = mLabelCache.get(b); 1797 else labelB = (b instanceof AppWidgetProviderInfo) ? 1798 ((AppWidgetProviderInfo) b).label : 1799 ((ResolveInfo) b).loadLabel(mPackageManager).toString(); 1800 return sCollator.compare(labelA, labelB); 1801 } 1802 }; 1803 1804 public void dumpState() { 1805 Log.d(TAG, "mCallbacks=" + mCallbacks); 1806 ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList.data", mAllAppsList.data); 1807 ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList.added", mAllAppsList.added); 1808 ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList.removed", mAllAppsList.removed); 1809 ApplicationInfo.dumpApplicationInfoList(TAG, "mAllAppsList.modified", mAllAppsList.modified); 1810 if (mLoaderTask != null) { 1811 mLoaderTask.dumpState(); 1812 } else { 1813 Log.d(TAG, "mLoaderTask=null"); 1814 } 1815 } 1816} 1817