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/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.launcher3;
import android.annotation.TargetApi;
import android.appwidget.AppWidgetHost;
import android.appwidget.AppWidgetManager;
import android.content.ComponentName;
import android.content.ContentProvider;
import android.content.ContentProviderOperation;
import android.content.ContentProviderResult;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.content.OperationApplicationException;
import android.content.SharedPreferences;
import android.content.pm.PackageManager.NameNotFoundException;
import android.content.res.Resources;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.database.sqlite.SQLiteQueryBuilder;
import android.database.sqlite.SQLiteStatement;
import android.net.Uri;
import android.os.Binder;
import android.os.Build;
import android.os.Bundle;
import android.os.Process;
import android.os.StrictMode;
import android.os.UserManager;
import android.text.TextUtils;
import android.util.Log;
import android.util.SparseArray;
import com.android.launcher3.AutoInstallsLayout.LayoutParserCallback;
import com.android.launcher3.LauncherSettings.Favorites;
import com.android.launcher3.compat.UserHandleCompat;
import com.android.launcher3.compat.UserManagerCompat;
import com.android.launcher3.config.ProviderConfig;
import com.android.launcher3.util.ManagedProfileHeuristic;
import com.android.launcher3.util.Thunk;
import java.io.File;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;
public class LauncherProvider extends ContentProvider {
private static final String TAG = "LauncherProvider";
private static final boolean LOGD = false;
private static final int DATABASE_VERSION = 26;
public static final String AUTHORITY = ProviderConfig.AUTHORITY;
static final String TABLE_FAVORITES = LauncherSettings.Favorites.TABLE_NAME;
static final String TABLE_WORKSPACE_SCREENS = LauncherSettings.WorkspaceScreens.TABLE_NAME;
static final String EMPTY_DATABASE_CREATED = "EMPTY_DATABASE_CREATED";
private static final String RESTRICTION_PACKAGE_NAME = "workspace.configuration.package.name";
@Thunk LauncherProviderChangeListener mListener;
@Thunk DatabaseHelper mOpenHelper;
@Override
public boolean onCreate() {
final Context context = getContext();
StrictMode.ThreadPolicy oldPolicy = StrictMode.allowThreadDiskWrites();
mOpenHelper = new DatabaseHelper(context);
StrictMode.setThreadPolicy(oldPolicy);
LauncherAppState.setLauncherProvider(this);
return true;
}
public boolean wasNewDbCreated() {
return mOpenHelper.wasNewDbCreated();
}
public void setLauncherProviderChangeListener(LauncherProviderChangeListener listener) {
mListener = listener;
mOpenHelper.mListener = mListener;
}
@Override
public String getType(Uri uri) {
SqlArguments args = new SqlArguments(uri, null, null);
if (TextUtils.isEmpty(args.where)) {
return "vnd.android.cursor.dir/" + args.table;
} else {
return "vnd.android.cursor.item/" + args.table;
}
}
@Override
public Cursor query(Uri uri, String[] projection, String selection,
String[] selectionArgs, String sortOrder) {
SqlArguments args = new SqlArguments(uri, selection, selectionArgs);
SQLiteQueryBuilder qb = new SQLiteQueryBuilder();
qb.setTables(args.table);
SQLiteDatabase db = mOpenHelper.getWritableDatabase();
Cursor result = qb.query(db, projection, args.where, args.args, null, null, sortOrder);
result.setNotificationUri(getContext().getContentResolver(), uri);
return result;
}
@Thunk static long dbInsertAndCheck(DatabaseHelper helper,
SQLiteDatabase db, String table, String nullColumnHack, ContentValues values) {
if (values == null) {
throw new RuntimeException("Error: attempting to insert null values");
}
if (!values.containsKey(LauncherSettings.ChangeLogColumns._ID)) {
throw new RuntimeException("Error: attempting to add item without specifying an id");
}
helper.checkId(table, values);
return db.insert(table, nullColumnHack, values);
}
private void reloadLauncherIfExternal() {
if (Utilities.ATLEAST_MARSHMALLOW && Binder.getCallingPid() != Process.myPid()) {
LauncherAppState app = LauncherAppState.getInstanceNoCreate();
if (app != null) {
app.reloadWorkspace();
}
}
}
@Override
public Uri insert(Uri uri, ContentValues initialValues) {
SqlArguments args = new SqlArguments(uri);
// In very limited cases, we support system|signature permission apps to modify the db.
if (Binder.getCallingPid() != Process.myPid()) {
if (!mOpenHelper.initializeExternalAdd(initialValues)) {
return null;
}
}
SQLiteDatabase db = mOpenHelper.getWritableDatabase();
addModifiedTime(initialValues);
final long rowId = dbInsertAndCheck(mOpenHelper, db, args.table, null, initialValues);
if (rowId < 0) return null;
uri = ContentUris.withAppendedId(uri, rowId);
notifyListeners();
if (Utilities.ATLEAST_MARSHMALLOW) {
reloadLauncherIfExternal();
} else {
// Deprecated behavior to support legacy devices which rely on provider callbacks.
LauncherAppState app = LauncherAppState.getInstanceNoCreate();
if (app != null && "true".equals(uri.getQueryParameter("isExternalAdd"))) {
app.reloadWorkspace();
}
String notify = uri.getQueryParameter("notify");
if (notify == null || "true".equals(notify)) {
getContext().getContentResolver().notifyChange(uri, null);
}
}
return uri;
}
@Override
public int bulkInsert(Uri uri, ContentValues[] values) {
SqlArguments args = new SqlArguments(uri);
SQLiteDatabase db = mOpenHelper.getWritableDatabase();
db.beginTransaction();
try {
int numValues = values.length;
for (int i = 0; i < numValues; i++) {
addModifiedTime(values[i]);
if (dbInsertAndCheck(mOpenHelper, db, args.table, null, values[i]) < 0) {
return 0;
}
}
db.setTransactionSuccessful();
} finally {
db.endTransaction();
}
notifyListeners();
reloadLauncherIfExternal();
return values.length;
}
@Override
public ContentProviderResult[] applyBatch(ArrayList<ContentProviderOperation> operations)
throws OperationApplicationException {
SQLiteDatabase db = mOpenHelper.getWritableDatabase();
db.beginTransaction();
try {
ContentProviderResult[] result = super.applyBatch(operations);
db.setTransactionSuccessful();
reloadLauncherIfExternal();
return result;
} finally {
db.endTransaction();
}
}
@Override
public int delete(Uri uri, String selection, String[] selectionArgs) {
SqlArguments args = new SqlArguments(uri, selection, selectionArgs);
SQLiteDatabase db = mOpenHelper.getWritableDatabase();
int count = db.delete(args.table, args.where, args.args);
if (count > 0) notifyListeners();
reloadLauncherIfExternal();
return count;
}
@Override
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
SqlArguments args = new SqlArguments(uri, selection, selectionArgs);
addModifiedTime(values);
SQLiteDatabase db = mOpenHelper.getWritableDatabase();
int count = db.update(args.table, values, args.where, args.args);
if (count > 0) notifyListeners();
reloadLauncherIfExternal();
return count;
}
@Override
public Bundle call(String method, String arg, Bundle extras) {
if (Binder.getCallingUid() != Process.myUid()) {
return null;
}
switch (method) {
case LauncherSettings.Settings.METHOD_GET_BOOLEAN: {
Bundle result = new Bundle();
result.putBoolean(LauncherSettings.Settings.EXTRA_VALUE,
getContext().getSharedPreferences(
LauncherAppState.getSharedPreferencesKey(), Context.MODE_PRIVATE)
.getBoolean(arg, extras.getBoolean(
LauncherSettings.Settings.EXTRA_DEFAULT_VALUE)));
return result;
}
case LauncherSettings.Settings.METHOD_SET_BOOLEAN: {
boolean value = extras.getBoolean(LauncherSettings.Settings.EXTRA_VALUE);
getContext().getSharedPreferences(
LauncherAppState.getSharedPreferencesKey(), Context.MODE_PRIVATE)
.edit().putBoolean(arg, value).apply();
if (mListener != null) {
mListener.onSettingsChanged(arg, value);
}
Bundle result = new Bundle();
result.putBoolean(LauncherSettings.Settings.EXTRA_VALUE, value);
return result;
}
}
return null;
}
/**
* Deletes any empty folder from the DB.
* @return Ids of deleted folders.
*/
public List<Long> deleteEmptyFolders() {
ArrayList<Long> folderIds = new ArrayList<Long>();
SQLiteDatabase db = mOpenHelper.getWritableDatabase();
db.beginTransaction();
try {
// Select folders whose id do not match any container value.
String selection = LauncherSettings.Favorites.ITEM_TYPE + " = "
+ LauncherSettings.Favorites.ITEM_TYPE_FOLDER + " AND "
+ LauncherSettings.Favorites._ID + " NOT IN (SELECT " +
LauncherSettings.Favorites.CONTAINER + " FROM "
+ TABLE_FAVORITES + ")";
Cursor c = db.query(TABLE_FAVORITES,
new String[] {LauncherSettings.Favorites._ID},
selection, null, null, null, null);
while (c.moveToNext()) {
folderIds.add(c.getLong(0));
}
c.close();
if (folderIds.size() > 0) {
db.delete(TABLE_FAVORITES, Utilities.createDbSelectionQuery(
LauncherSettings.Favorites._ID, folderIds), null);
}
db.setTransactionSuccessful();
} catch (SQLException ex) {
Log.e(TAG, ex.getMessage(), ex);
folderIds.clear();
} finally {
db.endTransaction();
}
return folderIds;
}
private void notifyListeners() {
// always notify the backup agent
LauncherBackupAgentHelper.dataChanged(getContext());
if (mListener != null) {
mListener.onLauncherProviderChange();
}
}
@Thunk static void addModifiedTime(ContentValues values) {
values.put(LauncherSettings.ChangeLogColumns.MODIFIED, System.currentTimeMillis());
}
public long generateNewItemId() {
return mOpenHelper.generateNewItemId();
}
public void updateMaxItemId(long id) {
mOpenHelper.updateMaxItemId(id);
}
public long generateNewScreenId() {
return mOpenHelper.generateNewScreenId();
}
/**
* Clears all the data for a fresh start.
*/
synchronized public void createEmptyDB() {
mOpenHelper.createEmptyDB(mOpenHelper.getWritableDatabase());
}
public void clearFlagEmptyDbCreated() {
String spKey = LauncherAppState.getSharedPreferencesKey();
getContext().getSharedPreferences(spKey, Context.MODE_PRIVATE)
.edit()
.remove(EMPTY_DATABASE_CREATED)
.commit();
}
/**
* Loads the default workspace based on the following priority scheme:
* 1) From the app restrictions
* 2) From a package provided by play store
* 3) From a partner configuration APK, already in the system image
* 4) The default configuration for the particular device
*/
synchronized public void loadDefaultFavoritesIfNecessary() {
String spKey = LauncherAppState.getSharedPreferencesKey();
SharedPreferences sp = getContext().getSharedPreferences(spKey, Context.MODE_PRIVATE);
if (sp.getBoolean(EMPTY_DATABASE_CREATED, false)) {
Log.d(TAG, "loading default workspace");
AutoInstallsLayout loader = createWorkspaceLoaderFromAppRestriction();
if (loader == null) {
loader = AutoInstallsLayout.get(getContext(),
mOpenHelper.mAppWidgetHost, mOpenHelper);
}
if (loader == null) {
final Partner partner = Partner.get(getContext().getPackageManager());
if (partner != null && partner.hasDefaultLayout()) {
final Resources partnerRes = partner.getResources();
int workspaceResId = partnerRes.getIdentifier(Partner.RES_DEFAULT_LAYOUT,
"xml", partner.getPackageName());
if (workspaceResId != 0) {
loader = new DefaultLayoutParser(getContext(), mOpenHelper.mAppWidgetHost,
mOpenHelper, partnerRes, workspaceResId);
}
}
}
final boolean usingExternallyProvidedLayout = loader != null;
if (loader == null) {
loader = getDefaultLayoutParser();
}
// There might be some partially restored DB items, due to buggy restore logic in
// previous versions of launcher.
createEmptyDB();
// Populate favorites table with initial favorites
if ((mOpenHelper.loadFavorites(mOpenHelper.getWritableDatabase(), loader) <= 0)
&& usingExternallyProvidedLayout) {
// Unable to load external layout. Cleanup and load the internal layout.
createEmptyDB();
mOpenHelper.loadFavorites(mOpenHelper.getWritableDatabase(),
getDefaultLayoutParser());
}
clearFlagEmptyDbCreated();
}
}
/**
* Creates workspace loader from an XML resource listed in the app restrictions.
*
* @return the loader if the restrictions are set and the resource exists; null otherwise.
*/
@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR2)
private AutoInstallsLayout createWorkspaceLoaderFromAppRestriction() {
// UserManager.getApplicationRestrictions() requires minSdkVersion >= 18
if (!Utilities.ATLEAST_JB_MR2) {
return null;
}
Context ctx = getContext();
UserManager um = (UserManager) ctx.getSystemService(Context.USER_SERVICE);
Bundle bundle = um.getApplicationRestrictions(ctx.getPackageName());
if (bundle == null) {
return null;
}
String packageName = bundle.getString(RESTRICTION_PACKAGE_NAME);
if (packageName != null) {
try {
Resources targetResources = ctx.getPackageManager()
.getResourcesForApplication(packageName);
return AutoInstallsLayout.get(ctx, packageName, targetResources,
mOpenHelper.mAppWidgetHost, mOpenHelper);
} catch (NameNotFoundException e) {
Log.e(TAG, "Target package for restricted profile not found", e);
return null;
}
}
return null;
}
private DefaultLayoutParser getDefaultLayoutParser() {
int defaultLayout = LauncherAppState.getInstance()
.getInvariantDeviceProfile().defaultLayoutId;
return new DefaultLayoutParser(getContext(), mOpenHelper.mAppWidgetHost,
mOpenHelper, getContext().getResources(), defaultLayout);
}
public void migrateLauncher2Shortcuts() {
mOpenHelper.migrateLauncher2Shortcuts(mOpenHelper.getWritableDatabase(),
Uri.parse(getContext().getString(R.string.old_launcher_provider_uri)));
}
public void updateFolderItemsRank() {
mOpenHelper.updateFolderItemsRank(mOpenHelper.getWritableDatabase(), false);
}
public void convertShortcutsToLauncherActivities() {
mOpenHelper.convertShortcutsToLauncherActivities(mOpenHelper.getWritableDatabase());
}
public void deleteDatabase() {
// Are you sure? (y/n)
final SQLiteDatabase db = mOpenHelper.getWritableDatabase();
final File dbFile = new File(db.getPath());
mOpenHelper.close();
if (dbFile.exists()) {
SQLiteDatabase.deleteDatabase(dbFile);
}
mOpenHelper = new DatabaseHelper(getContext());
mOpenHelper.mListener = mListener;
}
private static class DatabaseHelper extends SQLiteOpenHelper implements LayoutParserCallback {
private final Context mContext;
@Thunk final AppWidgetHost mAppWidgetHost;
private long mMaxItemId = -1;
private long mMaxScreenId = -1;
private boolean mNewDbCreated = false;
@Thunk LauncherProviderChangeListener mListener;
DatabaseHelper(Context context) {
super(context, LauncherFiles.LAUNCHER_DB, null, DATABASE_VERSION);
mContext = context;
mAppWidgetHost = new AppWidgetHost(context, Launcher.APPWIDGET_HOST_ID);
// In the case where neither onCreate nor onUpgrade gets called, we read the maxId from
// the DB here
if (mMaxItemId == -1) {
mMaxItemId = initializeMaxItemId(getWritableDatabase());
}
if (mMaxScreenId == -1) {
mMaxScreenId = initializeMaxScreenId(getWritableDatabase());
}
}
public boolean wasNewDbCreated() {
return mNewDbCreated;
}
@Override
public void onCreate(SQLiteDatabase db) {
if (LOGD) Log.d(TAG, "creating new launcher database");
mMaxItemId = 1;
mMaxScreenId = 0;
mNewDbCreated = true;
UserManagerCompat userManager = UserManagerCompat.getInstance(mContext);
long userSerialNumber = userManager.getSerialNumberForUser(
UserHandleCompat.myUserHandle());
db.execSQL("CREATE TABLE favorites (" +
"_id INTEGER PRIMARY KEY," +
"title TEXT," +
"intent TEXT," +
"container INTEGER," +
"screen INTEGER," +
"cellX INTEGER," +
"cellY INTEGER," +
"spanX INTEGER," +
"spanY INTEGER," +
"itemType INTEGER," +
"appWidgetId INTEGER NOT NULL DEFAULT -1," +
"isShortcut INTEGER," +
"iconType INTEGER," +
"iconPackage TEXT," +
"iconResource TEXT," +
"icon BLOB," +
"uri TEXT," +
"displayMode INTEGER," +
"appWidgetProvider TEXT," +
"modified INTEGER NOT NULL DEFAULT 0," +
"restored INTEGER NOT NULL DEFAULT 0," +
"profileId INTEGER DEFAULT " + userSerialNumber + "," +
"rank INTEGER NOT NULL DEFAULT 0," +
"options INTEGER NOT NULL DEFAULT 0" +
");");
addWorkspacesTable(db);
// Database was just created, so wipe any previous widgets
if (mAppWidgetHost != null) {
mAppWidgetHost.deleteHost();
/**
* Send notification that we've deleted the {@link AppWidgetHost},
* probably as part of the initial database creation. The receiver may
* want to re-call {@link AppWidgetHost#startListening()} to ensure
* callbacks are correctly set.
*/
new MainThreadExecutor().execute(new Runnable() {
@Override
public void run() {
if (mListener != null) {
mListener.onAppWidgetHostReset();
}
}
});
}
// Fresh and clean launcher DB.
mMaxItemId = initializeMaxItemId(db);
setFlagEmptyDbCreated();
// When a new DB is created, remove all previously stored managed profile information.
ManagedProfileHeuristic.processAllUsers(Collections.<UserHandleCompat>emptyList(), mContext);
}
private void addWorkspacesTable(SQLiteDatabase db) {
db.execSQL("CREATE TABLE " + TABLE_WORKSPACE_SCREENS + " (" +
LauncherSettings.WorkspaceScreens._ID + " INTEGER PRIMARY KEY," +
LauncherSettings.WorkspaceScreens.SCREEN_RANK + " INTEGER," +
LauncherSettings.ChangeLogColumns.MODIFIED + " INTEGER NOT NULL DEFAULT 0" +
");");
}
private void removeOrphanedItems(SQLiteDatabase db) {
// Delete items directly on the workspace who's screen id doesn't exist
// "DELETE FROM favorites WHERE screen NOT IN (SELECT _id FROM workspaceScreens)
// AND container = -100"
String removeOrphanedDesktopItems = "DELETE FROM " + TABLE_FAVORITES +
" WHERE " +
LauncherSettings.Favorites.SCREEN + " NOT IN (SELECT " +
LauncherSettings.WorkspaceScreens._ID + " FROM " + TABLE_WORKSPACE_SCREENS + ")" +
" AND " +
LauncherSettings.Favorites.CONTAINER + " = " +
LauncherSettings.Favorites.CONTAINER_DESKTOP;
db.execSQL(removeOrphanedDesktopItems);
// Delete items contained in folders which no longer exist (after above statement)
// "DELETE FROM favorites WHERE container <> -100 AND container <> -101 AND container
// NOT IN (SELECT _id FROM favorites WHERE itemType = 2)"
String removeOrphanedFolderItems = "DELETE FROM " + TABLE_FAVORITES +
" WHERE " +
LauncherSettings.Favorites.CONTAINER + " <> " +
LauncherSettings.Favorites.CONTAINER_DESKTOP +
" AND "
+ LauncherSettings.Favorites.CONTAINER + " <> " +
LauncherSettings.Favorites.CONTAINER_HOTSEAT +
" AND "
+ LauncherSettings.Favorites.CONTAINER + " NOT IN (SELECT " +
LauncherSettings.Favorites._ID + " FROM " + TABLE_FAVORITES +
" WHERE " + LauncherSettings.Favorites.ITEM_TYPE + " = " +
LauncherSettings.Favorites.ITEM_TYPE_FOLDER + ")";
db.execSQL(removeOrphanedFolderItems);
}
private void setFlagJustLoadedOldDb() {
String spKey = LauncherAppState.getSharedPreferencesKey();
SharedPreferences sp = mContext.getSharedPreferences(spKey, Context.MODE_PRIVATE);
sp.edit().putBoolean(EMPTY_DATABASE_CREATED, false).commit();
}
private void setFlagEmptyDbCreated() {
String spKey = LauncherAppState.getSharedPreferencesKey();
SharedPreferences sp = mContext.getSharedPreferences(spKey, Context.MODE_PRIVATE);
sp.edit().putBoolean(EMPTY_DATABASE_CREATED, true).commit();
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
if (LOGD) Log.d(TAG, "onUpgrade triggered: " + oldVersion);
switch (oldVersion) {
// The version cannot be lower that 12, as Launcher3 never supported a lower
// version of the DB.
case 12: {
// With the new shrink-wrapped and re-orderable workspaces, it makes sense
// to persist workspace screens and their relative order.
mMaxScreenId = 0;
addWorkspacesTable(db);
}
case 13: {
db.beginTransaction();
try {
// Insert new column for holding widget provider name
db.execSQL("ALTER TABLE favorites " +
"ADD COLUMN appWidgetProvider TEXT;");
db.setTransactionSuccessful();
} catch (SQLException ex) {
Log.e(TAG, ex.getMessage(), ex);
// Old version remains, which means we wipe old data
break;
} finally {
db.endTransaction();
}
}
case 14: {
db.beginTransaction();
try {
// Insert new column for holding update timestamp
db.execSQL("ALTER TABLE favorites " +
"ADD COLUMN modified INTEGER NOT NULL DEFAULT 0;");
db.execSQL("ALTER TABLE workspaceScreens " +
"ADD COLUMN modified INTEGER NOT NULL DEFAULT 0;");
db.setTransactionSuccessful();
} catch (SQLException ex) {
Log.e(TAG, ex.getMessage(), ex);
// Old version remains, which means we wipe old data
break;
} finally {
db.endTransaction();
}
}
case 15: {
if (!addIntegerColumn(db, Favorites.RESTORED, 0)) {
// Old version remains, which means we wipe old data
break;
}
}
case 16: {
// We use the db version upgrade here to identify users who may not have seen
// clings yet (because they weren't available), but for whom the clings are now
// available (tablet users). Because one of the possible cling flows (migration)
// is very destructive (wipes out workspaces), we want to prevent this from showing
// until clear data. We do so by marking that the clings have been shown.
LauncherClings.synchonouslyMarkFirstRunClingDismissed(mContext);
}
case 17: {
// No-op
}
case 18: {
// Due to a data loss bug, some users may have items associated with screen ids
// which no longer exist. Since this can cause other problems, and since the user
// will never see these items anyway, we use database upgrade as an opportunity to
// clean things up.
removeOrphanedItems(db);
}
case 19: {
// Add userId column
if (!addProfileColumn(db)) {
// Old version remains, which means we wipe old data
break;
}
}
case 20:
if (!updateFolderItemsRank(db, true)) {
break;
}
case 21:
// Recreate workspace table with screen id a primary key
if (!recreateWorkspaceTable(db)) {
break;
}
case 22: {
if (!addIntegerColumn(db, Favorites.OPTIONS, 0)) {
// Old version remains, which means we wipe old data
break;
}
}
case 23:
// No-op
case 24:
ManagedProfileHeuristic.markExistingUsersForNoFolderCreation(mContext);
case 25:
convertShortcutsToLauncherActivities(db);
case 26: {
// DB Upgraded successfully
return;
}
}
// DB was not upgraded
Log.w(TAG, "Destroying all old data.");
createEmptyDB(db);
}
@Override
public void onDowngrade(SQLiteDatabase db, int oldVersion, int newVersion) {
// This shouldn't happen -- throw our hands up in the air and start over.
Log.w(TAG, "Database version downgrade from: " + oldVersion + " to " + newVersion +
". Wiping databse.");
createEmptyDB(db);
}
/**
* Clears all the data for a fresh start.
*/
public void createEmptyDB(SQLiteDatabase db) {
db.execSQL("DROP TABLE IF EXISTS " + TABLE_FAVORITES);
db.execSQL("DROP TABLE IF EXISTS " + TABLE_WORKSPACE_SCREENS);
onCreate(db);
}
/**
* Replaces all shortcuts of type {@link Favorites#ITEM_TYPE_SHORTCUT} which have a valid
* launcher activity target with {@link Favorites#ITEM_TYPE_APPLICATION}.
*/
@Thunk void convertShortcutsToLauncherActivities(SQLiteDatabase db) {
db.beginTransaction();
Cursor c = null;
SQLiteStatement updateStmt = null;
try {
// Only consider the primary user as other users can't have a shortcut.
long userSerial = UserManagerCompat.getInstance(mContext)
.getSerialNumberForUser(UserHandleCompat.myUserHandle());
c = db.query(TABLE_FAVORITES, new String[] {
Favorites._ID,
Favorites.INTENT,
}, "itemType=" + Favorites.ITEM_TYPE_SHORTCUT + " AND profileId=" + userSerial,
null, null, null, null);
updateStmt = db.compileStatement("UPDATE favorites SET itemType="
+ Favorites.ITEM_TYPE_APPLICATION + " WHERE _id=?");
final int idIndex = c.getColumnIndexOrThrow(Favorites._ID);
final int intentIndex = c.getColumnIndexOrThrow(Favorites.INTENT);
while (c.moveToNext()) {
String intentDescription = c.getString(intentIndex);
Intent intent;
try {
intent = Intent.parseUri(intentDescription, 0);
} catch (URISyntaxException e) {
Log.e(TAG, "Unable to parse intent", e);
continue;
}
if (!Utilities.isLauncherAppTarget(intent)) {
continue;
}
long id = c.getLong(idIndex);
updateStmt.bindLong(1, id);
updateStmt.executeUpdateDelete();
}
db.setTransactionSuccessful();
} catch (SQLException ex) {
Log.w(TAG, "Error deduping shortcuts", ex);
} finally {
db.endTransaction();
if (c != null) {
c.close();
}
if (updateStmt != null) {
updateStmt.close();
}
}
}
/**
* Recreates workspace table and migrates data to the new table.
*/
public boolean recreateWorkspaceTable(SQLiteDatabase db) {
db.beginTransaction();
try {
Cursor c = db.query(TABLE_WORKSPACE_SCREENS,
new String[] {LauncherSettings.WorkspaceScreens._ID},
null, null, null, null,
LauncherSettings.WorkspaceScreens.SCREEN_RANK);
ArrayList<Long> sortedIDs = new ArrayList<Long>();
long maxId = 0;
try {
while (c.moveToNext()) {
Long id = c.getLong(0);
if (!sortedIDs.contains(id)) {
sortedIDs.add(id);
maxId = Math.max(maxId, id);
}
}
} finally {
c.close();
}
db.execSQL("DROP TABLE IF EXISTS " + TABLE_WORKSPACE_SCREENS);
addWorkspacesTable(db);
// Add all screen ids back
int total = sortedIDs.size();
for (int i = 0; i < total; i++) {
ContentValues values = new ContentValues();
values.put(LauncherSettings.WorkspaceScreens._ID, sortedIDs.get(i));
values.put(LauncherSettings.WorkspaceScreens.SCREEN_RANK, i);
addModifiedTime(values);
db.insertOrThrow(TABLE_WORKSPACE_SCREENS, null, values);
}
db.setTransactionSuccessful();
mMaxScreenId = maxId;
} catch (SQLException ex) {
// Old version remains, which means we wipe old data
Log.e(TAG, ex.getMessage(), ex);
return false;
} finally {
db.endTransaction();
}
return true;
}
@Thunk boolean updateFolderItemsRank(SQLiteDatabase db, boolean addRankColumn) {
db.beginTransaction();
try {
if (addRankColumn) {
// Insert new column for holding rank
db.execSQL("ALTER TABLE favorites ADD COLUMN rank INTEGER NOT NULL DEFAULT 0;");
}
// Get a map for folder ID to folder width
Cursor c = db.rawQuery("SELECT container, MAX(cellX) FROM favorites"
+ " WHERE container IN (SELECT _id FROM favorites WHERE itemType = ?)"
+ " GROUP BY container;",
new String[] {Integer.toString(LauncherSettings.Favorites.ITEM_TYPE_FOLDER)});
while (c.moveToNext()) {
db.execSQL("UPDATE favorites SET rank=cellX+(cellY*?) WHERE "
+ "container=? AND cellX IS NOT NULL AND cellY IS NOT NULL;",
new Object[] {c.getLong(1) + 1, c.getLong(0)});
}
c.close();
db.setTransactionSuccessful();
} catch (SQLException ex) {
// Old version remains, which means we wipe old data
Log.e(TAG, ex.getMessage(), ex);
return false;
} finally {
db.endTransaction();
}
return true;
}
private boolean addProfileColumn(SQLiteDatabase db) {
UserManagerCompat userManager = UserManagerCompat.getInstance(mContext);
// Default to the serial number of this user, for older
// shortcuts.
long userSerialNumber = userManager.getSerialNumberForUser(
UserHandleCompat.myUserHandle());
return addIntegerColumn(db, Favorites.PROFILE_ID, userSerialNumber);
}
private boolean addIntegerColumn(SQLiteDatabase db, String columnName, long defaultValue) {
db.beginTransaction();
try {
db.execSQL("ALTER TABLE favorites ADD COLUMN "
+ columnName + " INTEGER NOT NULL DEFAULT " + defaultValue + ";");
db.setTransactionSuccessful();
} catch (SQLException ex) {
Log.e(TAG, ex.getMessage(), ex);
return false;
} finally {
db.endTransaction();
}
return true;
}
// Generates a new ID to use for an object in your database. This method should be only
// called from the main UI thread. As an exception, we do call it when we call the
// constructor from the worker thread; however, this doesn't extend until after the
// constructor is called, and we only pass a reference to LauncherProvider to LauncherApp
// after that point
@Override
public long generateNewItemId() {
if (mMaxItemId < 0) {
throw new RuntimeException("Error: max item id was not initialized");
}
mMaxItemId += 1;
return mMaxItemId;
}
@Override
public long insertAndCheck(SQLiteDatabase db, ContentValues values) {
return dbInsertAndCheck(this, db, TABLE_FAVORITES, null, values);
}
public void updateMaxItemId(long id) {
mMaxItemId = id + 1;
}
public void checkId(String table, ContentValues values) {
long id = values.getAsLong(LauncherSettings.BaseLauncherColumns._ID);
if (table == LauncherProvider.TABLE_WORKSPACE_SCREENS) {
mMaxScreenId = Math.max(id, mMaxScreenId);
} else {
mMaxItemId = Math.max(id, mMaxItemId);
}
}
private long initializeMaxItemId(SQLiteDatabase db) {
return getMaxId(db, TABLE_FAVORITES);
}
// Generates a new ID to use for an workspace screen in your database. This method
// should be only called from the main UI thread. As an exception, we do call it when we
// call the constructor from the worker thread; however, this doesn't extend until after the
// constructor is called, and we only pass a reference to LauncherProvider to LauncherApp
// after that point
public long generateNewScreenId() {
if (mMaxScreenId < 0) {
throw new RuntimeException("Error: max screen id was not initialized");
}
mMaxScreenId += 1;
return mMaxScreenId;
}
private long initializeMaxScreenId(SQLiteDatabase db) {
return getMaxId(db, TABLE_WORKSPACE_SCREENS);
}
@Thunk boolean initializeExternalAdd(ContentValues values) {
// 1. Ensure that externally added items have a valid item id
long id = generateNewItemId();
values.put(LauncherSettings.Favorites._ID, id);
// 2. In the case of an app widget, and if no app widget id is specified, we
// attempt allocate and bind the widget.
Integer itemType = values.getAsInteger(LauncherSettings.Favorites.ITEM_TYPE);
if (itemType != null &&
itemType.intValue() == LauncherSettings.Favorites.ITEM_TYPE_APPWIDGET &&
!values.containsKey(LauncherSettings.Favorites.APPWIDGET_ID)) {
final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(mContext);
ComponentName cn = ComponentName.unflattenFromString(
values.getAsString(Favorites.APPWIDGET_PROVIDER));
if (cn != null) {
try {
int appWidgetId = mAppWidgetHost.allocateAppWidgetId();
values.put(LauncherSettings.Favorites.APPWIDGET_ID, appWidgetId);
if (!appWidgetManager.bindAppWidgetIdIfAllowed(appWidgetId,cn)) {
return false;
}
} catch (RuntimeException e) {
Log.e(TAG, "Failed to initialize external widget", e);
return false;
}
} else {
return false;
}
}
// Add screen id if not present
long screenId = values.getAsLong(LauncherSettings.Favorites.SCREEN);
if (!addScreenIdIfNecessary(screenId)) {
return false;
}
return true;
}
// Returns true of screen id exists, or if successfully added
private boolean addScreenIdIfNecessary(long screenId) {
if (!hasScreenId(screenId)) {
int rank = getMaxScreenRank() + 1;
ContentValues v = new ContentValues();
v.put(LauncherSettings.WorkspaceScreens._ID, screenId);
v.put(LauncherSettings.WorkspaceScreens.SCREEN_RANK, rank);
if (dbInsertAndCheck(this, getWritableDatabase(),
TABLE_WORKSPACE_SCREENS, null, v) < 0) {
return false;
}
}
return true;
}
private boolean hasScreenId(long screenId) {
SQLiteDatabase db = getWritableDatabase();
Cursor c = db.rawQuery("SELECT * FROM " + TABLE_WORKSPACE_SCREENS + " WHERE "
+ LauncherSettings.WorkspaceScreens._ID + " = " + screenId, null);
if (c != null) {
int count = c.getCount();
c.close();
return count > 0;
} else {
return false;
}
}
private int getMaxScreenRank() {
SQLiteDatabase db = getWritableDatabase();
Cursor c = db.rawQuery("SELECT MAX(" + LauncherSettings.WorkspaceScreens.SCREEN_RANK
+ ") FROM " + TABLE_WORKSPACE_SCREENS, null);
// get the result
final int maxRankIndex = 0;
int rank = -1;
if (c != null && c.moveToNext()) {
rank = c.getInt(maxRankIndex);
}
if (c != null) {
c.close();
}
return rank;
}
@Thunk int loadFavorites(SQLiteDatabase db, AutoInstallsLayout loader) {
ArrayList<Long> screenIds = new ArrayList<Long>();
// TODO: Use multiple loaders with fall-back and transaction.
int count = loader.loadLayout(db, screenIds);
// Add the screens specified by the items above
Collections.sort(screenIds);
int rank = 0;
ContentValues values = new ContentValues();
for (Long id : screenIds) {
values.clear();
values.put(LauncherSettings.WorkspaceScreens._ID, id);
values.put(LauncherSettings.WorkspaceScreens.SCREEN_RANK, rank);
if (dbInsertAndCheck(this, db, TABLE_WORKSPACE_SCREENS, null, values) < 0) {
throw new RuntimeException("Failed initialize screen table"
+ "from default layout");
}
rank++;
}
// Ensure that the max ids are initialized
mMaxItemId = initializeMaxItemId(db);
mMaxScreenId = initializeMaxScreenId(db);
return count;
}
@Thunk void migrateLauncher2Shortcuts(SQLiteDatabase db, Uri uri) {
final ContentResolver resolver = mContext.getContentResolver();
Cursor c = null;
int count = 0;
int curScreen = 0;
try {
c = resolver.query(uri, null, null, null, "title ASC");
} catch (Exception e) {
// Ignore
}
// We already have a favorites database in the old provider
if (c != null) {
try {
if (c.getCount() > 0) {
final int idIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites._ID);
final int intentIndex
= c.getColumnIndexOrThrow(LauncherSettings.Favorites.INTENT);
final int titleIndex
= c.getColumnIndexOrThrow(LauncherSettings.Favorites.TITLE);
final int iconTypeIndex
= c.getColumnIndexOrThrow(LauncherSettings.Favorites.ICON_TYPE);
final int iconIndex
= c.getColumnIndexOrThrow(LauncherSettings.Favorites.ICON);
final int iconPackageIndex
= c.getColumnIndexOrThrow(LauncherSettings.Favorites.ICON_PACKAGE);
final int iconResourceIndex
= c.getColumnIndexOrThrow(LauncherSettings.Favorites.ICON_RESOURCE);
final int containerIndex
= c.getColumnIndexOrThrow(LauncherSettings.Favorites.CONTAINER);
final int itemTypeIndex
= c.getColumnIndexOrThrow(LauncherSettings.Favorites.ITEM_TYPE);
final int screenIndex
= c.getColumnIndexOrThrow(LauncherSettings.Favorites.SCREEN);
final int cellXIndex
= c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLX);
final int cellYIndex
= c.getColumnIndexOrThrow(LauncherSettings.Favorites.CELLY);
final int profileIndex
= c.getColumnIndex(LauncherSettings.Favorites.PROFILE_ID);
int i = 0;
int curX = 0;
int curY = 0;
final LauncherAppState app = LauncherAppState.getInstance();
final InvariantDeviceProfile profile = app.getInvariantDeviceProfile();
final int width = (int) profile.numColumns;
final int height = (int) profile.numRows;
final int hotseatWidth = (int) profile.numHotseatIcons;
final HashSet<String> seenIntents = new HashSet<String>(c.getCount());
final ArrayList<ContentValues> shortcuts = new ArrayList<ContentValues>();
final ArrayList<ContentValues> folders = new ArrayList<ContentValues>();
final SparseArray<ContentValues> hotseat = new SparseArray<ContentValues>();
while (c.moveToNext()) {
final int itemType = c.getInt(itemTypeIndex);
if (itemType != Favorites.ITEM_TYPE_APPLICATION
&& itemType != Favorites.ITEM_TYPE_SHORTCUT
&& itemType != Favorites.ITEM_TYPE_FOLDER) {
continue;
}
final int cellX = c.getInt(cellXIndex);
final int cellY = c.getInt(cellYIndex);
final int screen = c.getInt(screenIndex);
int container = c.getInt(containerIndex);
final String intentStr = c.getString(intentIndex);
UserManagerCompat userManager = UserManagerCompat.getInstance(mContext);
UserHandleCompat userHandle;
final long userSerialNumber;
if (profileIndex != -1 && !c.isNull(profileIndex)) {
userSerialNumber = c.getInt(profileIndex);
userHandle = userManager.getUserForSerialNumber(userSerialNumber);
} else {
// Default to the serial number of this user, for older
// shortcuts.
userHandle = UserHandleCompat.myUserHandle();
userSerialNumber = userManager.getSerialNumberForUser(userHandle);
}
if (userHandle == null) {
Log.d(TAG, "skipping deleted user");
continue;
}
if (itemType != Favorites.ITEM_TYPE_FOLDER) {
final Intent intent;
final ComponentName cn;
try {
intent = Intent.parseUri(intentStr, 0);
} catch (URISyntaxException e) {
// bogus intent?
Log.d(TAG, "skipping invalid intent uri");
continue;
}
cn = intent.getComponent();
if (TextUtils.isEmpty(intentStr)) {
// no intent? no icon
Log.d(TAG, "skipping empty intent");
continue;
} else if (cn != null &&
!LauncherModel.isValidPackageActivity(mContext, cn,
userHandle)) {
// component no longer exists.
Log.d(TAG, "skipping item whose component no longer exists.");
continue;
} else if (container ==
LauncherSettings.Favorites.CONTAINER_DESKTOP) {
// Dedupe icons directly on the workspace
// Canonicalize
// the Play Store sets the package parameter, but Launcher
// does not, so we clear that out to keep them the same.
// Also ignore intent flags for the purposes of deduping.
intent.setPackage(null);
int flags = intent.getFlags();
intent.setFlags(0);
final String key = intent.toUri(0);
intent.setFlags(flags);
if (seenIntents.contains(key)) {
Log.d(TAG, "skipping duplicate");
continue;
} else {
seenIntents.add(key);
}
}
}
ContentValues values = new ContentValues(c.getColumnCount());
values.put(LauncherSettings.Favorites._ID, c.getInt(idIndex));
values.put(LauncherSettings.Favorites.INTENT, intentStr);
values.put(LauncherSettings.Favorites.TITLE, c.getString(titleIndex));
values.put(LauncherSettings.Favorites.ICON_TYPE,
c.getInt(iconTypeIndex));
values.put(LauncherSettings.Favorites.ICON, c.getBlob(iconIndex));
values.put(LauncherSettings.Favorites.ICON_PACKAGE,
c.getString(iconPackageIndex));
values.put(LauncherSettings.Favorites.ICON_RESOURCE,
c.getString(iconResourceIndex));
values.put(LauncherSettings.Favorites.ITEM_TYPE, itemType);
values.put(LauncherSettings.Favorites.APPWIDGET_ID, -1);
values.put(LauncherSettings.Favorites.PROFILE_ID, userSerialNumber);
if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) {
hotseat.put(screen, values);
}
if (container != LauncherSettings.Favorites.CONTAINER_DESKTOP) {
// In a folder or in the hotseat, preserve position
values.put(LauncherSettings.Favorites.SCREEN, screen);
values.put(LauncherSettings.Favorites.CELLX, cellX);
values.put(LauncherSettings.Favorites.CELLY, cellY);
} else {
// For items contained directly on one of the workspace screen,
// we'll determine their location (screen, x, y) in a second pass.
}
values.put(LauncherSettings.Favorites.CONTAINER, container);
if (itemType != Favorites.ITEM_TYPE_FOLDER) {
shortcuts.add(values);
} else {
folders.add(values);
}
}
// Now that we have all the hotseat icons, let's go through them left-right
// and assign valid locations for them in the new hotseat
final int N = hotseat.size();
for (int idx=0; idx<N; idx++) {
int hotseatX = hotseat.keyAt(idx);
ContentValues values = hotseat.valueAt(idx);
if (hotseatX == profile.hotseatAllAppsRank) {
// let's drop this in the next available hole in the hotseat
while (++hotseatX < hotseatWidth) {
if (hotseat.get(hotseatX) == null) {
// found a spot! move it here
values.put(LauncherSettings.Favorites.SCREEN,
hotseatX);
break;
}
}
}
if (hotseatX >= hotseatWidth) {
// no room for you in the hotseat? it's off to the desktop with you
values.put(LauncherSettings.Favorites.CONTAINER,
Favorites.CONTAINER_DESKTOP);
}
}
final ArrayList<ContentValues> allItems = new ArrayList<ContentValues>();
// Folders first
allItems.addAll(folders);
// Then shortcuts
allItems.addAll(shortcuts);
// Layout all the folders
for (ContentValues values: allItems) {
if (values.getAsInteger(LauncherSettings.Favorites.CONTAINER) !=
LauncherSettings.Favorites.CONTAINER_DESKTOP) {
// Hotseat items and folder items have already had their
// location information set. Nothing to be done here.
continue;
}
values.put(LauncherSettings.Favorites.SCREEN, curScreen);
values.put(LauncherSettings.Favorites.CELLX, curX);
values.put(LauncherSettings.Favorites.CELLY, curY);
curX = (curX + 1) % width;
if (curX == 0) {
curY = (curY + 1);
}
// Leave the last row of icons blank on every screen
if (curY == height - 1) {
curScreen = (int) generateNewScreenId();
curY = 0;
}
}
if (allItems.size() > 0) {
db.beginTransaction();
try {
for (ContentValues row: allItems) {
if (row == null) continue;
if (dbInsertAndCheck(this, db, TABLE_FAVORITES, null, row)
< 0) {
return;
} else {
count++;
}
}
db.setTransactionSuccessful();
} finally {
db.endTransaction();
}
}
db.beginTransaction();
try {
for (i=0; i<=curScreen; i++) {
final ContentValues values = new ContentValues();
values.put(LauncherSettings.WorkspaceScreens._ID, i);
values.put(LauncherSettings.WorkspaceScreens.SCREEN_RANK, i);
if (dbInsertAndCheck(this, db, TABLE_WORKSPACE_SCREENS, null, values)
< 0) {
return;
}
}
db.setTransactionSuccessful();
} finally {
db.endTransaction();
}
updateFolderItemsRank(db, false);
}
} finally {
c.close();
}
}
Log.d(TAG, "migrated " + count + " icons from Launcher2 into "
+ (curScreen+1) + " screens");
// ensure that new screens are created to hold these icons
setFlagJustLoadedOldDb();
// Update max IDs; very important since we just grabbed IDs from another database
mMaxItemId = initializeMaxItemId(db);
mMaxScreenId = initializeMaxScreenId(db);
if (LOGD) Log.d(TAG, "mMaxItemId: " + mMaxItemId + " mMaxScreenId: " + mMaxScreenId);
}
}
/**
* @return the max _id in the provided table.
*/
@Thunk static long getMaxId(SQLiteDatabase db, String table) {
Cursor c = db.rawQuery("SELECT MAX(_id) FROM " + table, null);
// get the result
long id = -1;
if (c != null && c.moveToNext()) {
id = c.getLong(0);
}
if (c != null) {
c.close();
}
if (id == -1) {
throw new RuntimeException("Error: could not query max id in " + table);
}
return id;
}
static class SqlArguments {
public final String table;
public final String where;
public final String[] args;
SqlArguments(Uri url, String where, String[] args) {
if (url.getPathSegments().size() == 1) {
this.table = url.getPathSegments().get(0);
this.where = where;
this.args = args;
} else if (url.getPathSegments().size() != 2) {
throw new IllegalArgumentException("Invalid URI: " + url);
} else if (!TextUtils.isEmpty(where)) {
throw new UnsupportedOperationException("WHERE clause not supported: " + url);
} else {
this.table = url.getPathSegments().get(0);
this.where = "_id=" + ContentUris.parseId(url);
this.args = null;
}
}
SqlArguments(Uri url) {
if (url.getPathSegments().size() == 1) {
table = url.getPathSegments().get(0);
where = null;
args = null;
} else {
throw new IllegalArgumentException("Invalid URI: " + url);
}
}
}
}