WidgetPreviewLoader.java revision 3f471440a8b6b71d4c15501a96befd3b715c9e8f
1325dc23624160689e59fbac708cf6f222b20d025Daniel Sandlerpackage com.android.launcher3; 205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.content.ComponentName; 405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.content.ContentValues; 505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.content.Context; 65b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyalimport android.content.pm.PackageInfo; 75b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyalimport android.content.pm.PackageManager.NameNotFoundException; 805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.content.pm.ResolveInfo; 905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.content.res.Resources; 1005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.database.Cursor; 115b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyalimport android.database.SQLException; 1205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.database.sqlite.SQLiteDatabase; 1305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.database.sqlite.SQLiteOpenHelper; 1405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.Bitmap; 1505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.Bitmap.Config; 1605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.BitmapFactory; 1705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.Canvas; 1805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.ColorMatrix; 1905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.ColorMatrixColorFilter; 2005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.Paint; 2105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.PorterDuff; 2205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.Rect; 234cad7538c9615303d291f5b52e960aaf0985828fSunny Goyalimport android.graphics.RectF; 2405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.drawable.BitmapDrawable; 2505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.graphics.drawable.Drawable; 2605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.os.AsyncTask; 2705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport android.util.Log; 285b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyalimport android.util.LongSparseArray; 294cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal 30ffe83f13319cdb833a25596d47cf1af098cc4c60Sunny Goyalimport com.android.launcher3.compat.AppWidgetManagerCompat; 315b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyalimport com.android.launcher3.compat.UserHandleCompat; 325b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyalimport com.android.launcher3.compat.UserManagerCompat; 335b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyalimport com.android.launcher3.util.ComponentKey; 34091440a9cb9d4f42406631004aa484cbb79214caAdam Cohenimport com.android.launcher3.util.Thunk; 353f471440a8b6b71d4c15501a96befd3b715c9e8fHyunyoung Songimport com.android.launcher3.widget.WidgetCell; 36ffe83f13319cdb833a25596d47cf1af098cc4c60Sunny Goyal 3705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport java.lang.ref.WeakReference; 385b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyalimport java.util.Collections; 3905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport java.util.HashMap; 4005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurkaimport java.util.HashSet; 415b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyalimport java.util.Set; 425b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyalimport java.util.WeakHashMap; 4365d60e21ec22e3bf03ba39f7a0be24df2cc914a2Adrian Roosimport java.util.concurrent.Callable; 4465d60e21ec22e3bf03ba39f7a0be24df2cc914a2Adrian Roosimport java.util.concurrent.ExecutionException; 4505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 46ffe83f13319cdb833a25596d47cf1af098cc4c60Sunny Goyalpublic class WidgetPreviewLoader { 4705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 48ffe83f13319cdb833a25596d47cf1af098cc4c60Sunny Goyal private static final String TAG = "WidgetPreviewLoader"; 493f471440a8b6b71d4c15501a96befd3b715c9e8fHyunyoung Song private static final boolean DEBUG = false; 50ffe83f13319cdb833a25596d47cf1af098cc4c60Sunny Goyal 51ffe83f13319cdb833a25596d47cf1af098cc4c60Sunny Goyal private static final float WIDGET_PREVIEW_ICON_PADDING_PERCENTAGE = 0.25f; 52ffe83f13319cdb833a25596d47cf1af098cc4c60Sunny Goyal 535b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private final HashMap<String, long[]> mPackageVersions = new HashMap<>(); 545b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private final HashMap<WidgetCacheKey, WeakReference<Bitmap>> mLoadedPreviews = new HashMap<>(); 555b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private Set<Bitmap> mUnusedBitmaps = Collections.newSetFromMap(new WeakHashMap<Bitmap, Boolean>()); 564cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal 574cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal private final Context mContext; 58ffe83f13319cdb833a25596d47cf1af098cc4c60Sunny Goyal private final IconCache mIconCache; 595b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private final UserManagerCompat mUserManager; 60ffe83f13319cdb833a25596d47cf1af098cc4c60Sunny Goyal private final AppWidgetManagerCompat mManager; 615b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private final CacheDb mDb; 6205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 6365d60e21ec22e3bf03ba39f7a0be24df2cc914a2Adrian Roos private final MainThreadExecutor mMainThreadExecutor = new MainThreadExecutor(); 6465d60e21ec22e3bf03ba39f7a0be24df2cc914a2Adrian Roos 655b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal public WidgetPreviewLoader(Context context, IconCache iconCache) { 66fd13c714f412dfa8130fa7a664cb1692a565c539Chris Wren mContext = context; 675b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal mIconCache = iconCache; 68ffe83f13319cdb833a25596d47cf1af098cc4c60Sunny Goyal mManager = AppWidgetManagerCompat.getInstance(context); 695b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal mUserManager = UserManagerCompat.getInstance(context); 705b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal mDb = new CacheDb(context); 713f4e070aa58d51dd136885b4d3e2e6c5d9f93ea0Michael Jurka } 72ffe83f13319cdb833a25596d47cf1af098cc4c60Sunny Goyal 735b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal /** 745b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal * Generates the widget preview on {@link AsyncTask#THREAD_POOL_EXECUTOR}. Must be 755b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal * called on UI thread 765b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal * 775b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal * @param o either {@link LauncherAppWidgetProviderInfo} or {@link ResolveInfo} 785b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal * @param immediateResult A bitmap array of size 1. If the result is already cached, it is 795b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal * set to the final result. 805b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal * @return a request id which can be used to cancel the request. 815b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal */ 825b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal public PreviewLoadRequest getPreview(final Object o, int previewWidth, int previewHeight, 833f471440a8b6b71d4c15501a96befd3b715c9e8fHyunyoung Song WidgetCell caller, Bitmap[] immediateResult) { 845b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal String size = previewWidth + "x" + previewHeight; 855b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal WidgetCacheKey key = getObjectKey(o, size); 8605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 875b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal // Check if we have the preview loaded or not. 885140cfaf471ed21c1cdcf0edcb53ae89b87c6848Michael Jurka synchronized (mLoadedPreviews) { 895b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal WeakReference<Bitmap> ref = mLoadedPreviews.get(key); 905b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (ref != null && ref.get() != null) { 915b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal immediateResult[0] = ref.get(); 925b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal return new PreviewLoadRequest(null, key); 9305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 9405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 955b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 965b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal PreviewLoadTask task = new PreviewLoadTask(key, o, previewWidth, previewHeight, caller); 975b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal task.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR); 985b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal return new PreviewLoadRequest(task, key); 9905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 10005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 1015b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal /** 1025b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal * The DB holds the generated previews for various components. Previews can also have different 1035b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal * sizes (landscape vs portrait). 1045b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal */ 1055b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private static class CacheDb extends SQLiteOpenHelper { 1065b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private static final int DB_VERSION = 3; 1075b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 1085b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private static final String TABLE_NAME = "shortcut_and_widget_previews"; 1095b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private static final String COLUMN_COMPONENT = "componentName"; 1105b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private static final String COLUMN_USER = "profileId"; 1115b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private static final String COLUMN_SIZE = "size"; 1125b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private static final String COLUMN_PACKAGE = "packageName"; 1135b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private static final String COLUMN_LAST_UPDATED = "lastUpdated"; 1145b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private static final String COLUMN_VERSION = "version"; 1155b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private static final String COLUMN_PREVIEW_BITMAP = "preview_bitmap"; 11605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 117d9cb4a124ac5c83080ace5ac92980df9c6f49e8eMichael Jurka public CacheDb(Context context) { 1185b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal super(context, LauncherFiles.WIDGET_PREVIEWS_DB, null, DB_VERSION); 11905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 12005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 12105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka @Override 12205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public void onCreate(SQLiteDatabase database) { 12332b7a097338b77d8999c706c42f19e8ba060ba62Michael Jurka database.execSQL("CREATE TABLE IF NOT EXISTS " + TABLE_NAME + " (" + 1245b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal COLUMN_COMPONENT + " TEXT NOT NULL, " + 1255b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal COLUMN_USER + " INTEGER NOT NULL, " + 12605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka COLUMN_SIZE + " TEXT NOT NULL, " + 1275b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal COLUMN_PACKAGE + " TEXT NOT NULL, " + 1285b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal COLUMN_LAST_UPDATED + " INTEGER NOT NULL DEFAULT 0, " + 1295b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal COLUMN_VERSION + " INTEGER NOT NULL DEFAULT 0, " + 1305b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal COLUMN_PREVIEW_BITMAP + " BLOB, " + 1315b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal "PRIMARY KEY (" + COLUMN_COMPONENT + ", " + COLUMN_USER + ", " + COLUMN_SIZE + ") " + 13232b7a097338b77d8999c706c42f19e8ba060ba62Michael Jurka ");"); 13305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 13405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 13505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka @Override 13605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) { 137e5919c5574ff09b88173b44558c6d325841511d6Michael Jurka if (oldVersion != newVersion) { 1385b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal clearDB(db); 139e5919c5574ff09b88173b44558c6d325841511d6Michael Jurka } 14005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 14105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 1425b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal @Override 1435b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal public void onDowngrade(SQLiteDatabase db, int oldVersion, int newVersion) { 1445b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (oldVersion != newVersion) { 1455b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal clearDB(db); 1465b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 1475b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 14805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 1495b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private void clearDB(SQLiteDatabase db) { 1505b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal db.execSQL("DROP TABLE IF EXISTS " + TABLE_NAME); 1515b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal onCreate(db); 15205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 15305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 15405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 1555b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private WidgetCacheKey getObjectKey(Object o, String size) { 1565b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal // should cache the string builder 1575b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (o instanceof LauncherAppWidgetProviderInfo) { 1585b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal LauncherAppWidgetProviderInfo info = (LauncherAppWidgetProviderInfo) o; 1595b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal return new WidgetCacheKey(info.provider, mManager.getUser(info), size); 16005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 16105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka ResolveInfo info = (ResolveInfo) o; 1625b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal return new WidgetCacheKey( 1635b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal new ComponentName(info.activityInfo.packageName, info.activityInfo.name), 1645b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal UserHandleCompat.myUserHandle(), size); 16505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 16605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 16705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 1685b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal @Thunk void writeToDb(WidgetCacheKey key, long[] versions, Bitmap preview) { 16905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka ContentValues values = new ContentValues(); 1705b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal values.put(CacheDb.COLUMN_COMPONENT, key.componentName.flattenToShortString()); 1715b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal values.put(CacheDb.COLUMN_USER, mUserManager.getSerialNumberForUser(key.user)); 1725b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal values.put(CacheDb.COLUMN_SIZE, key.size); 1735b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal values.put(CacheDb.COLUMN_PACKAGE, key.componentName.getPackageName()); 1745b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal values.put(CacheDb.COLUMN_VERSION, versions[0]); 1755b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal values.put(CacheDb.COLUMN_LAST_UPDATED, versions[1]); 1765b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal values.put(CacheDb.COLUMN_PREVIEW_BITMAP, Utilities.flattenBitmap(preview)); 17705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 1786e27f642ae66dd1920b25b527fced7268943d11aMichael Jurka try { 1795b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal mDb.getWritableDatabase().insertWithOnConflict(CacheDb.TABLE_NAME, null, values, 1805b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal SQLiteDatabase.CONFLICT_REPLACE); 1815b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } catch (SQLException e) { 1825b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal Log.e(TAG, "Error saving image to DB", e); 1836e27f642ae66dd1920b25b527fced7268943d11aMichael Jurka } 18405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 18505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 1865b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal public void removePackage(String packageName, UserHandleCompat user) { 1875b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal removePackage(packageName, user, mUserManager.getSerialNumberForUser(user)); 1885b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 1895b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 1905b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private void removePackage(String packageName, UserHandleCompat user, long userSerial) { 1915b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal synchronized(mPackageVersions) { 1925b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal mPackageVersions.remove(packageName); 1935b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 1945b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 1955b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal synchronized (mLoadedPreviews) { 1965b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal Set<WidgetCacheKey> keysToRemove = new HashSet<>(); 1975b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal for (WidgetCacheKey key : mLoadedPreviews.keySet()) { 1985b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (key.componentName.getPackageName().equals(packageName) && key.user.equals(user)) { 1995b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal keysToRemove.add(key); 2005b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 2015b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 2025b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 2035b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal for (WidgetCacheKey key : keysToRemove) { 2045b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal WeakReference<Bitmap> req = mLoadedPreviews.remove(key); 2055b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (req != null && req.get() != null) { 2065b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal mUnusedBitmaps.add(req.get()); 2075b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 2085b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 2095b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 2105b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 2116e27f642ae66dd1920b25b527fced7268943d11aMichael Jurka try { 2125b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal mDb.getWritableDatabase().delete(CacheDb.TABLE_NAME, 2135b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal CacheDb.COLUMN_PACKAGE + " = ? AND " + CacheDb.COLUMN_USER + " = ?", 2145b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal new String[] {packageName, Long.toString(userSerial)}); 2155b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } catch (SQLException e) { 2165b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal Log.e(TAG, "Unable to delete items from DB", e); 2176e27f642ae66dd1920b25b527fced7268943d11aMichael Jurka } 2188ff02cac07a9c7fb0f321e93d67ad75cc588fbaeMichael Jurka } 2198ff02cac07a9c7fb0f321e93d67ad75cc588fbaeMichael Jurka 2205b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal /** 2215b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal * Updates the persistent DB: 2225b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal * 1. Any preview generated for an old package version is removed 2235b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal * 2. Any preview for an absent package is removed 2245b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal * This ensures that we remove entries for packages which changed while the launcher was dead. 2255b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal */ 2265b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal public void removeObsoletePreviews() { 2275b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal LongSparseArray<UserHandleCompat> userIdCache = new LongSparseArray<>(); 2285b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal LongSparseArray<HashSet<String>> validPackages = new LongSparseArray<>(); 2295b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 2305b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal for (Object obj : LauncherModel.getSortedWidgetsAndShortcuts(mContext, false)) { 2315b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal final UserHandleCompat user; 2325b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal final String pkg; 2335b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (obj instanceof ResolveInfo) { 2345b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal user = UserHandleCompat.myUserHandle(); 2355b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal pkg = ((ResolveInfo) obj).activityInfo.packageName; 2365b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } else { 2375b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal LauncherAppWidgetProviderInfo info = (LauncherAppWidgetProviderInfo) obj; 2385b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal user = mManager.getUser(info); 2395b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal pkg = info.provider.getPackageName(); 2405b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 2415b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 2425b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal int userIdIndex = userIdCache.indexOfValue(user); 2435b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal final long userId; 2445b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (userIdIndex < 0) { 2455b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal userId = mUserManager.getSerialNumberForUser(user); 2465b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal userIdCache.put(userId, user); 2475b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } else { 2485b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal userId = userIdCache.keyAt(userIdIndex); 2495b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 2505b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 2515b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal HashSet<String> packages = validPackages.get(userId); 2525b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (packages == null) { 2535b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal packages = new HashSet<>(); 2545b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal validPackages.put(userId, packages); 2555b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 2565b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal packages.add(pkg); 25705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 2585b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 2595b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal LongSparseArray<HashSet<String>> packagesToDelete = new LongSparseArray<>(); 2605b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal Cursor c = null; 2615b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal try { 2625b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal c = mDb.getReadableDatabase().query(CacheDb.TABLE_NAME, 2635b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal new String[] {CacheDb.COLUMN_USER, CacheDb.COLUMN_PACKAGE, 2645b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal CacheDb.COLUMN_LAST_UPDATED, CacheDb.COLUMN_VERSION}, 2655b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal null, null, null, null, null); 2665b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal while (c.moveToNext()) { 2675b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal long userId = c.getLong(0); 2685b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal String pkg = c.getString(1); 2695b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal long lastUpdated = c.getLong(2); 2705b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal long version = c.getLong(3); 2715b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 2725b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal HashSet<String> packages = validPackages.get(userId); 2735b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (packages != null && packages.contains(pkg)) { 2745b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal long[] versions = getPackageVersion(pkg); 2755b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (versions[0] == version && versions[1] == lastUpdated) { 2765b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal // Every thing checks out 2775b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal continue; 2785b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 2796e27f642ae66dd1920b25b527fced7268943d11aMichael Jurka } 2805b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 2815b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal // We need to delete this package. 2825b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal packages = packagesToDelete.get(userId); 2835b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (packages == null) { 2845b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal packages = new HashSet<>(); 2855b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal packagesToDelete.put(userId, packages); 28605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 2875b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal packages.add(pkg); 28805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 28905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 2905b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal for (int i = 0; i < packagesToDelete.size(); i++) { 2915b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal long userId = packagesToDelete.keyAt(i); 2925b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal UserHandleCompat user = mUserManager.getUserForSerialNumber(userId); 2935b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal for (String pkg : packagesToDelete.valueAt(i)) { 2945b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal removePackage(pkg, user, userId); 2956e27f642ae66dd1920b25b527fced7268943d11aMichael Jurka } 296eb1bb920507fe7f27b2ecece5b67749dac7850f3Michael Jurka } 2975b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } catch (SQLException e) { 2985b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal Log.e(TAG, "Error updatating widget previews", e); 2995b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } finally { 3005b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (c != null) { 3015b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal c.close(); 3025b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 3035b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 304eb1bb920507fe7f27b2ecece5b67749dac7850f3Michael Jurka } 305eb1bb920507fe7f27b2ecece5b67749dac7850f3Michael Jurka 3065b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private Bitmap readFromDb(WidgetCacheKey key, Bitmap recycle) { 3075b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal Cursor cursor = null; 3086e27f642ae66dd1920b25b527fced7268943d11aMichael Jurka try { 3095b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal cursor = mDb.getReadableDatabase().query( 3105b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal CacheDb.TABLE_NAME, 3115b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal new String[] { CacheDb.COLUMN_PREVIEW_BITMAP }, 3125b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal CacheDb.COLUMN_COMPONENT + " = ? AND " + CacheDb.COLUMN_USER + " = ? AND " + CacheDb.COLUMN_SIZE + " = ?", 3135b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal new String[] { 3145b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal key.componentName.flattenToString(), 3155b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal Long.toString(mUserManager.getSerialNumberForUser(key.user)), 3165b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal key.size 3175b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal }, 3185b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal null, null, null); 3195b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (cursor.moveToNext()) { 3205b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal byte[] blob = cursor.getBlob(0); 3215b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal BitmapFactory.Options opts = new BitmapFactory.Options(); 3225b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal opts.inBitmap = recycle; 3235b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal try { 3245b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal return BitmapFactory.decodeByteArray(blob, 0, blob.length, opts); 3255b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } catch (Exception e) { 3265b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal return null; 3275b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 3285b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 3295b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } catch (SQLException e) { 3305b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal Log.w(TAG, "Error loading preview from DB", e); 3315b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } finally { 3325b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (cursor != null) { 3335b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal cursor.close(); 334eb1bb920507fe7f27b2ecece5b67749dac7850f3Michael Jurka } 33505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 3365b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal return null; 33705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 33805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 3395b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private Bitmap generatePreview(Object info, Bitmap recycle, int previewWidth, int previewHeight) { 3405940042d39b576553c2499bcf3d0641281e6ad52Adam Cohen if (info instanceof LauncherAppWidgetProviderInfo) { 3415b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal return generateWidgetPreview((LauncherAppWidgetProviderInfo) info, previewWidth, recycle); 34205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 34305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return generateShortcutPreview( 3445b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal (ResolveInfo) info, previewWidth, previewHeight, recycle); 34505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 34605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 34705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 3485b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal public Bitmap generateWidgetPreview(LauncherAppWidgetProviderInfo info, 3495b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal int previewWidth, Bitmap preview) { 3505b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal int maxWidth = Math.min(previewWidth, info.spanX 3515b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal * LauncherAppState.getInstance().getDynamicGrid().getDeviceProfile().cellWidthPx); 3524cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal return generateWidgetPreview(info, maxWidth, preview, null); 35305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 35405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 3554cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal public Bitmap generateWidgetPreview(LauncherAppWidgetProviderInfo info, 3564cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal int maxPreviewWidth, Bitmap preview, int[] preScaledWidthOut) { 35705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Load the preview image if possible 35805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (maxPreviewWidth < 0) maxPreviewWidth = Integer.MAX_VALUE; 35905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 36005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Drawable drawable = null; 361ffe83f13319cdb833a25596d47cf1af098cc4c60Sunny Goyal if (info.previewImage != 0) { 362ffe83f13319cdb833a25596d47cf1af098cc4c60Sunny Goyal drawable = mManager.loadPreview(info); 363fa9ffc28fd4d230cf38b55840238f5595716abc8Adrian Roos if (drawable != null) { 364fa9ffc28fd4d230cf38b55840238f5595716abc8Adrian Roos drawable = mutateOnMainThread(drawable); 365fa9ffc28fd4d230cf38b55840238f5595716abc8Adrian Roos } else { 36605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka Log.w(TAG, "Can't load widget preview drawable 0x" + 367ffe83f13319cdb833a25596d47cf1af098cc4c60Sunny Goyal Integer.toHexString(info.previewImage) + " for provider: " + info.provider); 36805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 36905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 37005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 3714cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal final boolean widgetPreviewExists = (drawable != null); 3724cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal final int spanX = info.spanX < 1 ? 1 : info.spanX; 3734cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal final int spanY = info.spanY < 1 ? 1 : info.spanY; 3744cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal 37505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int previewWidth; 37605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int previewHeight; 3774cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal Bitmap tileBitmap = null; 3784cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal 37905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (widgetPreviewExists) { 38005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewWidth = drawable.getIntrinsicWidth(); 38105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewHeight = drawable.getIntrinsicHeight(); 38205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 38305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Generate a preview image if we couldn't load one 3844cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal tileBitmap = ((BitmapDrawable) mContext.getResources().getDrawable( 3854cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal R.drawable.widget_tile)).getBitmap(); 3864cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal previewWidth = tileBitmap.getWidth() * spanX; 3874cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal previewHeight = tileBitmap.getHeight() * spanY; 38805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 38905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 39005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Scale to fit width only - let the widget preview be clipped in the 39105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // vertical dimension 39205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka float scale = 1f; 39305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (preScaledWidthOut != null) { 39405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka preScaledWidthOut[0] = previewWidth; 39505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 39605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (previewWidth > maxPreviewWidth) { 39705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka scale = maxPreviewWidth / (float) previewWidth; 39805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 39905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (scale != 1f) { 40005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewWidth = (int) (scale * previewWidth); 40105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka previewHeight = (int) (scale * previewHeight); 40205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 40305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 40405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // If a bitmap is passed in, we use it; otherwise, we create a bitmap of the right size 4054cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal final Canvas c = new Canvas(); 40605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (preview == null) { 40705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka preview = Bitmap.createBitmap(previewWidth, previewHeight, Config.ARGB_8888); 4084cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal c.setBitmap(preview); 4094cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal } else { 4104cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal // Reusing bitmap. Clear it. 4114cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal c.setBitmap(preview); 4124cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal c.drawColor(0, PorterDuff.Mode.CLEAR); 41305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 41405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 41505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka // Draw the scaled preview into the final bitmap 41605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int x = (preview.getWidth() - previewWidth) / 2; 41705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka if (widgetPreviewExists) { 4184cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal drawable.setBounds(x, 0, x + previewWidth, previewHeight); 4194cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal drawable.draw(c); 42005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 4214cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal final Paint p = new Paint(); 4224cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal p.setFilterBitmap(true); 4235b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal int appIconSize = LauncherAppState.getInstance().getDynamicGrid() 4245b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal .getDeviceProfile().iconSizePx; 4254cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal 4264cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal // draw the spanX x spanY tiles 4274cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal final Rect src = new Rect(0, 0, tileBitmap.getWidth(), tileBitmap.getHeight()); 4284cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal 4294cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal float tileW = scale * tileBitmap.getWidth(); 4304cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal float tileH = scale * tileBitmap.getHeight(); 4314cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal final RectF dst = new RectF(0, 0, tileW, tileH); 4324cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal 4334cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal float tx = x; 4344cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal for (int i = 0; i < spanX; i++, tx += tileW) { 4354cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal float ty = 0; 4364cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal for (int j = 0; j < spanY; j++, ty += tileH) { 4374cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal dst.offsetTo(tx, ty); 4384cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal c.drawBitmap(tileBitmap, src, dst, p); 4394cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal } 44005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 4414cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal 4424cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal // Draw the icon in the top left corner 4434cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal // TODO: use top right for RTL 4445b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal int minOffset = (int) (appIconSize * WIDGET_PREVIEW_ICON_PADDING_PERCENTAGE); 4454cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal int smallestSide = Math.min(previewWidth, previewHeight); 4465b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal float iconScale = Math.min((float) smallestSide / (appIconSize + 2 * minOffset), scale); 4474cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal 4484cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal try { 4494cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal Drawable icon = mutateOnMainThread(mManager.loadIcon(info, mIconCache)); 4504cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal if (icon != null) { 4515b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal int hoffset = (int) ((tileW - appIconSize * iconScale) / 2) + x; 4525b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal int yoffset = (int) ((tileH - appIconSize * iconScale) / 2); 4534cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal icon.setBounds(hoffset, yoffset, 4545b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal hoffset + (int) (appIconSize * iconScale), 4555b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal yoffset + (int) (appIconSize * iconScale)); 4564cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal icon.draw(c); 4574cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal } 4584cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal } catch (Resources.NotFoundException e) { } 45905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(null); 46005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 461ffe83f13319cdb833a25596d47cf1af098cc4c60Sunny Goyal return mManager.getBadgeBitmap(info, preview); 46205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 46305713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 46405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka private Bitmap generateShortcutPreview( 46505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka ResolveInfo info, int maxWidth, int maxHeight, Bitmap preview) { 4664cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal final Canvas c = new Canvas(); 4674cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal if (preview == null) { 4684cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal preview = Bitmap.createBitmap(maxWidth, maxHeight, Config.ARGB_8888); 4694cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal c.setBitmap(preview); 4704cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal } else if (preview.getWidth() != maxWidth || preview.getHeight() != maxHeight) { 4714cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal throw new RuntimeException("Improperly sized bitmap passed as argument"); 47205713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } else { 4734cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal // Reusing bitmap. Clear it. 4744cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal c.setBitmap(preview); 47505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.drawColor(0, PorterDuff.Mode.CLEAR); 47605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 47705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 4784cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal Drawable icon = mutateOnMainThread(mIconCache.getFullResIcon(info.activityInfo)); 4794cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal icon.setFilterBitmap(true); 48005713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 4814cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal // Draw a desaturated/scaled version of the icon in the background as a watermark 4824cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal ColorMatrix colorMatrix = new ColorMatrix(); 4834cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal colorMatrix.setSaturation(0); 4844cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal icon.setColorFilter(new ColorMatrixColorFilter(colorMatrix)); 4854cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal icon.setAlpha((int) (255 * 0.06f)); 4864cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal 4874cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal Resources res = mContext.getResources(); 4884cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal int paddingTop = res.getDimensionPixelOffset(R.dimen.shortcut_preview_padding_top); 4894cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal int paddingLeft = res.getDimensionPixelOffset(R.dimen.shortcut_preview_padding_left); 4904cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal int paddingRight = res.getDimensionPixelOffset(R.dimen.shortcut_preview_padding_right); 49105713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka int scaledIconWidth = (maxWidth - paddingLeft - paddingRight); 4924cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal icon.setBounds(paddingLeft, paddingTop, 4934cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal paddingLeft + scaledIconWidth, paddingTop + scaledIconWidth); 4944cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal icon.draw(c); 49505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 4964cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal // Draw the final icon at top left corner. 4974cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal // TODO: use top right for RTL 4985b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal int appIconSize = LauncherAppState.getInstance().getDynamicGrid() 4995b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal .getDeviceProfile().iconSizePx; 5004cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal icon.setAlpha(255); 5014cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal icon.setColorFilter(null); 5025b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal icon.setBounds(0, 0, appIconSize, appIconSize); 5034cad7538c9615303d291f5b52e960aaf0985828fSunny Goyal icon.draw(c); 50405713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 50505713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka c.setBitmap(null); 50605713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka return preview; 50705713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka } 50805713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka 50965d60e21ec22e3bf03ba39f7a0be24df2cc914a2Adrian Roos private Drawable mutateOnMainThread(final Drawable drawable) { 51065d60e21ec22e3bf03ba39f7a0be24df2cc914a2Adrian Roos try { 51165d60e21ec22e3bf03ba39f7a0be24df2cc914a2Adrian Roos return mMainThreadExecutor.submit(new Callable<Drawable>() { 51265d60e21ec22e3bf03ba39f7a0be24df2cc914a2Adrian Roos @Override 51365d60e21ec22e3bf03ba39f7a0be24df2cc914a2Adrian Roos public Drawable call() throws Exception { 51465d60e21ec22e3bf03ba39f7a0be24df2cc914a2Adrian Roos return drawable.mutate(); 51565d60e21ec22e3bf03ba39f7a0be24df2cc914a2Adrian Roos } 51665d60e21ec22e3bf03ba39f7a0be24df2cc914a2Adrian Roos }).get(); 51765d60e21ec22e3bf03ba39f7a0be24df2cc914a2Adrian Roos } catch (InterruptedException e) { 51865d60e21ec22e3bf03ba39f7a0be24df2cc914a2Adrian Roos Thread.currentThread().interrupt(); 51965d60e21ec22e3bf03ba39f7a0be24df2cc914a2Adrian Roos throw new RuntimeException(e); 52065d60e21ec22e3bf03ba39f7a0be24df2cc914a2Adrian Roos } catch (ExecutionException e) { 52165d60e21ec22e3bf03ba39f7a0be24df2cc914a2Adrian Roos throw new RuntimeException(e); 52265d60e21ec22e3bf03ba39f7a0be24df2cc914a2Adrian Roos } 52365d60e21ec22e3bf03ba39f7a0be24df2cc914a2Adrian Roos } 5241f375ab63339359e1f8cd44cede466adedcdcc62Adrian Roos 5251f375ab63339359e1f8cd44cede466adedcdcc62Adrian Roos /** 5265b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal * @return an array of containing versionCode and lastUpdatedTime for the package. 5271f375ab63339359e1f8cd44cede466adedcdcc62Adrian Roos */ 5285b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private long[] getPackageVersion(String packageName) { 5295b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal synchronized (mPackageVersions) { 5305b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal long[] versions = mPackageVersions.get(packageName); 5315b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (versions == null) { 5325b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal versions = new long[2]; 5331f375ab63339359e1f8cd44cede466adedcdcc62Adrian Roos try { 5345b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal PackageInfo info = mContext.getPackageManager().getPackageInfo(packageName, 0); 5355b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal versions[0] = info.versionCode; 5365b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal versions[1] = info.lastUpdateTime; 5375b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } catch (NameNotFoundException e) { 5385b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal Log.e(TAG, "PackageInfo not found", e); 5395b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 5405b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal mPackageVersions.put(packageName, versions); 5415b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 5425b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal return versions; 5435b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 5445b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 5455b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 5465b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal /** 5475b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal * A request Id which can be used by the client to cancel any request. 5485b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal */ 5495b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal public class PreviewLoadRequest { 5505b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 5515b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private final PreviewLoadTask mTask; 5525b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private final WidgetCacheKey mKey; 5535b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 5545b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal public PreviewLoadRequest(PreviewLoadTask task, WidgetCacheKey key) { 5555b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal mTask = task; 5565b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal mKey = key; 5575b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 5585b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 5595b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal public void cancel(boolean recycleImage) { 5605b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (mTask != null) { 5615b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal mTask.cancel(true); 5625b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 5635b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 5645b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (recycleImage) { 5655b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal synchronized(mLoadedPreviews) { 5665b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal WeakReference<Bitmap> result = mLoadedPreviews.remove(mKey); 5675b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (result != null && result.get() != null) { 5685b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal mUnusedBitmaps.add(result.get()); 5691f375ab63339359e1f8cd44cede466adedcdcc62Adrian Roos } 5705b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 5715b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 5725b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 5735b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 5745b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 5755b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal public class PreviewLoadTask extends AsyncTask<Void, Void, Bitmap> { 5765b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 5775b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private final WidgetCacheKey mKey; 5785b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private final Object mInfo; 5795b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private final int mPreviewHeight; 5805b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private final int mPreviewWidth; 5813f471440a8b6b71d4c15501a96befd3b715c9e8fHyunyoung Song private final WidgetCell mCaller; 5825b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 5835b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal PreviewLoadTask(WidgetCacheKey key, Object info, int previewWidth, 5843f471440a8b6b71d4c15501a96befd3b715c9e8fHyunyoung Song int previewHeight, WidgetCell caller) { 5855b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal mKey = key; 5865b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal mInfo = info; 5875b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal mPreviewHeight = previewHeight; 5885b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal mPreviewWidth = previewWidth; 5895b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal mCaller = caller; 5903f471440a8b6b71d4c15501a96befd3b715c9e8fHyunyoung Song if (DEBUG) { 5913f471440a8b6b71d4c15501a96befd3b715c9e8fHyunyoung Song Log.d(TAG, String.format("%s, %s, %d, %d", 5923f471440a8b6b71d4c15501a96befd3b715c9e8fHyunyoung Song mKey, mInfo, mPreviewHeight, mPreviewWidth)); 5933f471440a8b6b71d4c15501a96befd3b715c9e8fHyunyoung Song } 5945b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 5955b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 5965b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal @Override 5975b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal protected Bitmap doInBackground(Void... params) { 5985b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal Bitmap unusedBitmap = null; 5993f471440a8b6b71d4c15501a96befd3b715c9e8fHyunyoung Song 6003f471440a8b6b71d4c15501a96befd3b715c9e8fHyunyoung Song // TODO(hyunyoungs): Figure out why this path causes concurrency issue. 6015b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal synchronized (mUnusedBitmaps) { 6025b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal // Check if we can use a bitmap 6035b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal for (Bitmap candidate : mUnusedBitmaps) { 6045b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (candidate != null && candidate.isMutable() && 6055b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal candidate.getWidth() == mPreviewWidth && 6065b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal candidate.getHeight() == mPreviewHeight) { 6075b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal unusedBitmap = candidate; 6085b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal break; 6091f375ab63339359e1f8cd44cede466adedcdcc62Adrian Roos } 6105b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 6115b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 6125b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (unusedBitmap == null) { 6135b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal unusedBitmap = Bitmap.createBitmap(mPreviewWidth, mPreviewHeight, Config.ARGB_8888); 6145b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } else { 6155b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal mUnusedBitmaps.remove(unusedBitmap); 6165b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 6175b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 6185b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (isCancelled()) { 6195b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal return null; 6205b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 6215b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal Bitmap preview = readFromDb(mKey, unusedBitmap); 6225b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (!isCancelled() && preview == null) { 6235b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal // Fetch the version info before we generate the preview, so that, in-case the 6245b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal // app was updated while we are generating the preview, we use the old version info, 6255b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal // which would gets re-written next time. 6265b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal long[] versions = getPackageVersion(mKey.componentName.getPackageName()); 6275b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 6285b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal // it's not in the db... we need to generate it 6295b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal preview = generatePreview(mInfo, unusedBitmap, mPreviewWidth, mPreviewHeight); 6305b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 6315b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal if (!isCancelled()) { 6325b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal writeToDb(mKey, versions, preview); 6331f375ab63339359e1f8cd44cede466adedcdcc62Adrian Roos } 6341f375ab63339359e1f8cd44cede466adedcdcc62Adrian Roos } 6355b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 6365b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal return preview; 6375b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 6385b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 6395b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal @Override 6405b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal protected void onPostExecute(Bitmap result) { 6415b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal synchronized(mLoadedPreviews) { 6425b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal mLoadedPreviews.put(mKey, new WeakReference<Bitmap>(result)); 6431f375ab63339359e1f8cd44cede466adedcdcc62Adrian Roos } 6445b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 6455b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal mCaller.applyPreview(result); 6465b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 6475b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 6485b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 6495b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private static final class WidgetCacheKey extends ComponentKey { 6505b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 6515b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal // TODO: remove dependency on size 6525b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal private final String size; 6535b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 6545b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal public WidgetCacheKey(ComponentName componentName, UserHandleCompat user, String size) { 6555b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal super(componentName, user); 6565b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal this.size = size; 6575b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 6585b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 6595b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal @Override 6605b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal public int hashCode() { 6615b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal return super.hashCode() ^ size.hashCode(); 6625b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal } 6635b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal 6645b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal @Override 6655b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal public boolean equals(Object o) { 6665b0e669169ea2c951bf2f6f71faf793b24db3c23Sunny Goyal return super.equals(o) && ((WidgetCacheKey) o).size.equals(size); 6671f375ab63339359e1f8cd44cede466adedcdcc62Adrian Roos } 6681f375ab63339359e1f8cd44cede466adedcdcc62Adrian Roos } 66905713af127d765cc28a8b2fd548a90347c90d6cbMichael Jurka} 670