/*
* 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.launcher2;
import android.app.SearchManager;
import android.appwidget.AppWidgetHost;
import android.appwidget.AppWidgetManager;
import android.appwidget.AppWidgetProviderInfo;
import android.content.ComponentName;
import android.content.ContentProvider;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.ContentValues;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.pm.ActivityInfo;
import android.content.pm.PackageManager;
import android.content.res.Resources;
import android.content.res.TypedArray;
import android.content.res.XmlResourceParser;
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.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.net.Uri;
import android.os.Bundle;
import android.provider.Settings;
import android.text.TextUtils;
import android.util.AttributeSet;
import android.util.Log;
import android.util.Xml;
import com.android.launcher.R;
import com.android.launcher2.LauncherSettings.Favorites;
import org.xmlpull.v1.XmlPullParser;
import org.xmlpull.v1.XmlPullParserException;
import java.io.IOException;
import java.net.URISyntaxException;
import java.util.ArrayList;
import java.util.List;
public class LauncherProvider extends ContentProvider {
private static final String TAG = "Launcher.LauncherProvider";
private static final boolean LOGD = false;
private static final String DATABASE_NAME = "launcher.db";
private static final int DATABASE_VERSION = 12;
static final String AUTHORITY = "com.android.launcher2.settings";
static final String TABLE_FAVORITES = "favorites";
static final String PARAMETER_NOTIFY = "notify";
static final String DB_CREATED_BUT_DEFAULT_WORKSPACE_NOT_LOADED =
"DB_CREATED_BUT_DEFAULT_WORKSPACE_NOT_LOADED";
static final String DEFAULT_WORKSPACE_RESOURCE_ID =
"DEFAULT_WORKSPACE_RESOURCE_ID";
private static final String ACTION_APPWIDGET_DEFAULT_WORKSPACE_CONFIGURE =
"com.android.launcher.action.APPWIDGET_DEFAULT_WORKSPACE_CONFIGURE";
/**
* {@link Uri} triggered at any registered {@link android.database.ContentObserver} when
* {@link AppWidgetHost#deleteHost()} is called during database creation.
* Use this to recall {@link AppWidgetHost#startListening()} if needed.
*/
static final Uri CONTENT_APPWIDGET_RESET_URI =
Uri.parse("content://" + AUTHORITY + "/appWidgetReset");
private DatabaseHelper mOpenHelper;
@Override
public boolean onCreate() {
mOpenHelper = new DatabaseHelper(getContext());
((LauncherApplication) getContext()).setLauncherProvider(this);
return true;
}
@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;
}
private static long dbInsertAndCheck(DatabaseHelper helper,
SQLiteDatabase db, String table, String nullColumnHack, ContentValues values) {
if (!values.containsKey(LauncherSettings.Favorites._ID)) {
throw new RuntimeException("Error: attempting to add item without specifying an id");
}
return db.insert(table, nullColumnHack, values);
}
private static void deleteId(SQLiteDatabase db, long id) {
Uri uri = LauncherSettings.Favorites.getContentUri(id, false);
SqlArguments args = new SqlArguments(uri, null, null);
db.delete(args.table, args.where, args.args);
}
@Override
public Uri insert(Uri uri, ContentValues initialValues) {
SqlArguments args = new SqlArguments(uri);
SQLiteDatabase db = mOpenHelper.getWritableDatabase();
final long rowId = dbInsertAndCheck(mOpenHelper, db, args.table, null, initialValues);
if (rowId <= 0) return null;
uri = ContentUris.withAppendedId(uri, rowId);
sendNotify(uri);
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++) {
if (dbInsertAndCheck(mOpenHelper, db, args.table, null, values[i]) < 0) {
return 0;
}
}
db.setTransactionSuccessful();
} finally {
db.endTransaction();
}
sendNotify(uri);
return values.length;
}
@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) sendNotify(uri);
return count;
}
@Override
public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs) {
SqlArguments args = new SqlArguments(uri, selection, selectionArgs);
SQLiteDatabase db = mOpenHelper.getWritableDatabase();
int count = db.update(args.table, values, args.where, args.args);
if (count > 0) sendNotify(uri);
return count;
}
private void sendNotify(Uri uri) {
String notify = uri.getQueryParameter(PARAMETER_NOTIFY);
if (notify == null || "true".equals(notify)) {
getContext().getContentResolver().notifyChange(uri, null);
}
}
public long generateNewId() {
return mOpenHelper.generateNewId();
}
/**
* @param workspaceResId that can be 0 to use default or non-zero for specific resource
*/
synchronized public void loadDefaultFavoritesIfNecessary(int origWorkspaceResId) {
String spKey = LauncherApplication.getSharedPreferencesKey();
SharedPreferences sp = getContext().getSharedPreferences(spKey, Context.MODE_PRIVATE);
if (sp.getBoolean(DB_CREATED_BUT_DEFAULT_WORKSPACE_NOT_LOADED, false)) {
int workspaceResId = origWorkspaceResId;
// Use default workspace resource if none provided
if (workspaceResId == 0) {
workspaceResId = sp.getInt(DEFAULT_WORKSPACE_RESOURCE_ID, R.xml.default_workspace);
}
// Populate favorites table with initial favorites
SharedPreferences.Editor editor = sp.edit();
editor.remove(DB_CREATED_BUT_DEFAULT_WORKSPACE_NOT_LOADED);
if (origWorkspaceResId != 0) {
editor.putInt(DEFAULT_WORKSPACE_RESOURCE_ID, origWorkspaceResId);
}
mOpenHelper.loadFavorites(mOpenHelper.getWritableDatabase(), workspaceResId);
editor.commit();
}
}
private static class DatabaseHelper extends SQLiteOpenHelper {
private static final String TAG_FAVORITES = "favorites";
private static final String TAG_FAVORITE = "favorite";
private static final String TAG_CLOCK = "clock";
private static final String TAG_SEARCH = "search";
private static final String TAG_APPWIDGET = "appwidget";
private static final String TAG_SHORTCUT = "shortcut";
private static final String TAG_FOLDER = "folder";
private static final String TAG_EXTRA = "extra";
private final Context mContext;
private final AppWidgetHost mAppWidgetHost;
private long mMaxId = -1;
DatabaseHelper(Context context) {
super(context, DATABASE_NAME, 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 (mMaxId == -1) {
mMaxId = initializeMaxId(getWritableDatabase());
}
}
/**
* 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.
*/
private void sendAppWidgetResetNotify() {
final ContentResolver resolver = mContext.getContentResolver();
resolver.notifyChange(CONTENT_APPWIDGET_RESET_URI, null);
}
@Override
public void onCreate(SQLiteDatabase db) {
if (LOGD) Log.d(TAG, "creating new launcher database");
mMaxId = 1;
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" +
");");
// Database was just created, so wipe any previous widgets
if (mAppWidgetHost != null) {
mAppWidgetHost.deleteHost();
sendAppWidgetResetNotify();
}
if (!convertDatabase(db)) {
// Set a shared pref so that we know we need to load the default workspace later
setFlagToLoadDefaultWorkspaceLater();
}
}
private void setFlagToLoadDefaultWorkspaceLater() {
String spKey = LauncherApplication.getSharedPreferencesKey();
SharedPreferences sp = mContext.getSharedPreferences(spKey, Context.MODE_PRIVATE);
SharedPreferences.Editor editor = sp.edit();
editor.putBoolean(DB_CREATED_BUT_DEFAULT_WORKSPACE_NOT_LOADED, true);
editor.commit();
}
private boolean convertDatabase(SQLiteDatabase db) {
if (LOGD) Log.d(TAG, "converting database from an older format, but not onUpgrade");
boolean converted = false;
final Uri uri = Uri.parse("content://" + Settings.AUTHORITY +
"/old_favorites?notify=true");
final ContentResolver resolver = mContext.getContentResolver();
Cursor cursor = null;
try {
cursor = resolver.query(uri, null, null, null, null);
} catch (Exception e) {
// Ignore
}
// We already have a favorites database in the old provider
if (cursor != null && cursor.getCount() > 0) {
try {
converted = copyFromCursor(db, cursor) > 0;
} finally {
cursor.close();
}
if (converted) {
resolver.delete(uri, null, null);
}
}
if (converted) {
// Convert widgets from this import into widgets
if (LOGD) Log.d(TAG, "converted and now triggering widget upgrade");
convertWidgets(db);
}
return converted;
}
private int copyFromCursor(SQLiteDatabase db, Cursor c) {
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 uriIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.URI);
final int displayModeIndex = c.getColumnIndexOrThrow(LauncherSettings.Favorites.DISPLAY_MODE);
ContentValues[] rows = new ContentValues[c.getCount()];
int i = 0;
while (c.moveToNext()) {
ContentValues values = new ContentValues(c.getColumnCount());
values.put(LauncherSettings.Favorites._ID, c.getLong(idIndex));
values.put(LauncherSettings.Favorites.INTENT, c.getString(intentIndex));
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.CONTAINER, c.getInt(containerIndex));
values.put(LauncherSettings.Favorites.ITEM_TYPE, c.getInt(itemTypeIndex));
values.put(LauncherSettings.Favorites.APPWIDGET_ID, -1);
values.put(LauncherSettings.Favorites.SCREEN, c.getInt(screenIndex));
values.put(LauncherSettings.Favorites.CELLX, c.getInt(cellXIndex));
values.put(LauncherSettings.Favorites.CELLY, c.getInt(cellYIndex));
values.put(LauncherSettings.Favorites.URI, c.getString(uriIndex));
values.put(LauncherSettings.Favorites.DISPLAY_MODE, c.getInt(displayModeIndex));
rows[i++] = values;
}
db.beginTransaction();
int total = 0;
try {
int numValues = rows.length;
for (i = 0; i < numValues; i++) {
if (dbInsertAndCheck(this, db, TABLE_FAVORITES, null, rows[i]) < 0) {
return 0;
} else {
total++;
}
}
db.setTransactionSuccessful();
} finally {
db.endTransaction();
}
return total;
}
@Override
public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
if (LOGD) Log.d(TAG, "onUpgrade triggered");
int version = oldVersion;
if (version < 3) {
// upgrade 1,2 -> 3 added appWidgetId column
db.beginTransaction();
try {
// Insert new column for holding appWidgetIds
db.execSQL("ALTER TABLE favorites " +
"ADD COLUMN appWidgetId INTEGER NOT NULL DEFAULT -1;");
db.setTransactionSuccessful();
version = 3;
} catch (SQLException ex) {
// Old version remains, which means we wipe old data
Log.e(TAG, ex.getMessage(), ex);
} finally {
db.endTransaction();
}
// Convert existing widgets only if table upgrade was successful
if (version == 3) {
convertWidgets(db);
}
}
if (version < 4) {
version = 4;
}
// Where's version 5?
// - Donut and sholes on 2.0 shipped with version 4 of launcher1.
// - Passion shipped on 2.1 with version 6 of launcher2
// - Sholes shipped on 2.1r1 (aka Mr. 3) with version 5 of launcher 1
// but version 5 on there was the updateContactsShortcuts change
// which was version 6 in launcher 2 (first shipped on passion 2.1r1).
// The updateContactsShortcuts change is idempotent, so running it twice
// is okay so we'll do that when upgrading the devices that shipped with it.
if (version < 6) {
// We went from 3 to 5 screens. Move everything 1 to the right
db.beginTransaction();
try {
db.execSQL("UPDATE favorites SET screen=(screen + 1);");
db.setTransactionSuccessful();
} catch (SQLException ex) {
// Old version remains, which means we wipe old data
Log.e(TAG, ex.getMessage(), ex);
} finally {
db.endTransaction();
}
// We added the fast track.
if (updateContactsShortcuts(db)) {
version = 6;
}
}
if (version < 7) {
// Version 7 gets rid of the special search widget.
convertWidgets(db);
version = 7;
}
if (version < 8) {
// Version 8 (froyo) has the icons all normalized. This should
// already be the case in practice, but we now rely on it and don't
// resample the images each time.
normalizeIcons(db);
version = 8;
}
if (version < 9) {
// The max id is not yet set at this point (onUpgrade is triggered in the ctor
// before it gets a change to get set, so we need to read it here when we use it)
if (mMaxId == -1) {
mMaxId = initializeMaxId(db);
}
// Add default hotseat icons
loadFavorites(db, R.xml.update_workspace);
version = 9;
}
// We bumped the version three time during JB, once to update the launch flags, once to
// update the override for the default launch animation and once to set the mimetype
// to improve startup performance
if (version < 12) {
// Contact shortcuts need a different set of flags to be launched now
// The updateContactsShortcuts change is idempotent, so we can keep using it like
// back in the Donut days
updateContactsShortcuts(db);
version = 12;
}
if (version != DATABASE_VERSION) {
Log.w(TAG, "Destroying all old data.");
db.execSQL("DROP TABLE IF EXISTS " + TABLE_FAVORITES);
onCreate(db);
}
}
private boolean updateContactsShortcuts(SQLiteDatabase db) {
final String selectWhere = buildOrWhereString(Favorites.ITEM_TYPE,
new int[] { Favorites.ITEM_TYPE_SHORTCUT });
Cursor c = null;
final String actionQuickContact = "com.android.contacts.action.QUICK_CONTACT";
db.beginTransaction();
try {
// Select and iterate through each matching widget
c = db.query(TABLE_FAVORITES,
new String[] { Favorites._ID, Favorites.INTENT },
selectWhere, null, null, null, null);
if (c == null) return false;
if (LOGD) Log.d(TAG, "found upgrade cursor count=" + c.getCount());
final int idIndex = c.getColumnIndex(Favorites._ID);
final int intentIndex = c.getColumnIndex(Favorites.INTENT);
while (c.moveToNext()) {
long favoriteId = c.getLong(idIndex);
final String intentUri = c.getString(intentIndex);
if (intentUri != null) {
try {
final Intent intent = Intent.parseUri(intentUri, 0);
android.util.Log.d("Home", intent.toString());
final Uri uri = intent.getData();
if (uri != null) {
final String data = uri.toString();
if ((Intent.ACTION_VIEW.equals(intent.getAction()) ||
actionQuickContact.equals(intent.getAction())) &&
(data.startsWith("content://contacts/people/") ||
data.startsWith("content://com.android.contacts/" +
"contacts/lookup/"))) {
final Intent newIntent = new Intent(actionQuickContact);
// When starting from the launcher, start in a new, cleared task
// CLEAR_WHEN_TASK_RESET cannot reset the root of a task, so we
// clear the whole thing preemptively here since
// QuickContactActivity will finish itself when launching other
// detail activities.
newIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
Intent.FLAG_ACTIVITY_CLEAR_TASK);
newIntent.putExtra(
Launcher.INTENT_EXTRA_IGNORE_LAUNCH_ANIMATION, true);
newIntent.setData(uri);
// Determine the type and also put that in the shortcut
// (that can speed up launch a bit)
newIntent.setDataAndType(uri, newIntent.resolveType(mContext));
final ContentValues values = new ContentValues();
values.put(LauncherSettings.Favorites.INTENT,
newIntent.toUri(0));
String updateWhere = Favorites._ID + "=" + favoriteId;
db.update(TABLE_FAVORITES, values, updateWhere, null);
}
}
} catch (RuntimeException ex) {
Log.e(TAG, "Problem upgrading shortcut", ex);
} catch (URISyntaxException e) {
Log.e(TAG, "Problem upgrading shortcut", e);
}
}
}
db.setTransactionSuccessful();
} catch (SQLException ex) {
Log.w(TAG, "Problem while upgrading contacts", ex);
return false;
} finally {
db.endTransaction();
if (c != null) {
c.close();
}
}
return true;
}
private void normalizeIcons(SQLiteDatabase db) {
Log.d(TAG, "normalizing icons");
db.beginTransaction();
Cursor c = null;
SQLiteStatement update = null;
try {
boolean logged = false;
update = db.compileStatement("UPDATE favorites "
+ "SET icon=? WHERE _id=?");
c = db.rawQuery("SELECT _id, icon FROM favorites WHERE iconType=" +
Favorites.ICON_TYPE_BITMAP, null);
final int idIndex = c.getColumnIndexOrThrow(Favorites._ID);
final int iconIndex = c.getColumnIndexOrThrow(Favorites.ICON);
while (c.moveToNext()) {
long id = c.getLong(idIndex);
byte[] data = c.getBlob(iconIndex);
try {
Bitmap bitmap = Utilities.resampleIconBitmap(
BitmapFactory.decodeByteArray(data, 0, data.length),
mContext);
if (bitmap != null) {
update.bindLong(1, id);
data = ItemInfo.flattenBitmap(bitmap);
if (data != null) {
update.bindBlob(2, data);
update.execute();
}
bitmap.recycle();
}
} catch (Exception e) {
if (!logged) {
Log.e(TAG, "Failed normalizing icon " + id, e);
} else {
Log.e(TAG, "Also failed normalizing icon " + id);
}
logged = true;
}
}
db.setTransactionSuccessful();
} catch (SQLException ex) {
Log.w(TAG, "Problem while allocating appWidgetIds for existing widgets", ex);
} finally {
db.endTransaction();
if (update != null) {
update.close();
}
if (c != null) {
c.close();
}
}
}
// 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
public long generateNewId() {
if (mMaxId < 0) {
throw new RuntimeException("Error: max id was not initialized");
}
mMaxId += 1;
return mMaxId;
}
private long initializeMaxId(SQLiteDatabase db) {
Cursor c = db.rawQuery("SELECT MAX(_id) FROM favorites", null);
// get the result
final int maxIdIndex = 0;
long id = -1;
if (c != null && c.moveToNext()) {
id = c.getLong(maxIdIndex);
}
if (c != null) {
c.close();
}
if (id == -1) {
throw new RuntimeException("Error: could not query max id");
}
return id;
}
/**
* Upgrade existing clock and photo frame widgets into their new widget
* equivalents.
*/
private void convertWidgets(SQLiteDatabase db) {
final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(mContext);
final int[] bindSources = new int[] {
Favorites.ITEM_TYPE_WIDGET_CLOCK,
Favorites.ITEM_TYPE_WIDGET_PHOTO_FRAME,
Favorites.ITEM_TYPE_WIDGET_SEARCH,
};
final String selectWhere = buildOrWhereString(Favorites.ITEM_TYPE, bindSources);
Cursor c = null;
db.beginTransaction();
try {
// Select and iterate through each matching widget
c = db.query(TABLE_FAVORITES, new String[] { Favorites._ID, Favorites.ITEM_TYPE },
selectWhere, null, null, null, null);
if (LOGD) Log.d(TAG, "found upgrade cursor count=" + c.getCount());
final ContentValues values = new ContentValues();
while (c != null && c.moveToNext()) {
long favoriteId = c.getLong(0);
int favoriteType = c.getInt(1);
// Allocate and update database with new appWidgetId
try {
int appWidgetId = mAppWidgetHost.allocateAppWidgetId();
if (LOGD) {
Log.d(TAG, "allocated appWidgetId=" + appWidgetId
+ " for favoriteId=" + favoriteId);
}
values.clear();
values.put(Favorites.ITEM_TYPE, Favorites.ITEM_TYPE_APPWIDGET);
values.put(Favorites.APPWIDGET_ID, appWidgetId);
// Original widgets might not have valid spans when upgrading
if (favoriteType == Favorites.ITEM_TYPE_WIDGET_SEARCH) {
values.put(LauncherSettings.Favorites.SPANX, 4);
values.put(LauncherSettings.Favorites.SPANY, 1);
} else {
values.put(LauncherSettings.Favorites.SPANX, 2);
values.put(LauncherSettings.Favorites.SPANY, 2);
}
String updateWhere = Favorites._ID + "=" + favoriteId;
db.update(TABLE_FAVORITES, values, updateWhere, null);
if (favoriteType == Favorites.ITEM_TYPE_WIDGET_CLOCK) {
// TODO: check return value
appWidgetManager.bindAppWidgetIdIfAllowed(appWidgetId,
new ComponentName("com.android.alarmclock",
"com.android.alarmclock.AnalogAppWidgetProvider"));
} else if (favoriteType == Favorites.ITEM_TYPE_WIDGET_PHOTO_FRAME) {
// TODO: check return value
appWidgetManager.bindAppWidgetIdIfAllowed(appWidgetId,
new ComponentName("com.android.camera",
"com.android.camera.PhotoAppWidgetProvider"));
} else if (favoriteType == Favorites.ITEM_TYPE_WIDGET_SEARCH) {
// TODO: check return value
appWidgetManager.bindAppWidgetIdIfAllowed(appWidgetId,
getSearchWidgetProvider());
}
} catch (RuntimeException ex) {
Log.e(TAG, "Problem allocating appWidgetId", ex);
}
}
db.setTransactionSuccessful();
} catch (SQLException ex) {
Log.w(TAG, "Problem while allocating appWidgetIds for existing widgets", ex);
} finally {
db.endTransaction();
if (c != null) {
c.close();
}
}
}
private static final void beginDocument(XmlPullParser parser, String firstElementName)
throws XmlPullParserException, IOException {
int type;
while ((type = parser.next()) != XmlPullParser.START_TAG
&& type != XmlPullParser.END_DOCUMENT) {
;
}
if (type != XmlPullParser.START_TAG) {
throw new XmlPullParserException("No start tag found");
}
if (!parser.getName().equals(firstElementName)) {
throw new XmlPullParserException("Unexpected start tag: found " + parser.getName() +
", expected " + firstElementName);
}
}
/**
* Loads the default set of favorite packages from an xml file.
*
* @param db The database to write the values into
* @param filterContainerId The specific container id of items to load
*/
private int loadFavorites(SQLiteDatabase db, int workspaceResourceId) {
Intent intent = new Intent(Intent.ACTION_MAIN, null);
intent.addCategory(Intent.CATEGORY_LAUNCHER);
ContentValues values = new ContentValues();
PackageManager packageManager = mContext.getPackageManager();
int allAppsButtonRank =
mContext.getResources().getInteger(R.integer.hotseat_all_apps_index);
int i = 0;
try {
XmlResourceParser parser = mContext.getResources().getXml(workspaceResourceId);
AttributeSet attrs = Xml.asAttributeSet(parser);
beginDocument(parser, TAG_FAVORITES);
final int depth = parser.getDepth();
int type;
while (((type = parser.next()) != XmlPullParser.END_TAG ||
parser.getDepth() > depth) && type != XmlPullParser.END_DOCUMENT) {
if (type != XmlPullParser.START_TAG) {
continue;
}
boolean added = false;
final String name = parser.getName();
TypedArray a = mContext.obtainStyledAttributes(attrs, R.styleable.Favorite);
long container = LauncherSettings.Favorites.CONTAINER_DESKTOP;
if (a.hasValue(R.styleable.Favorite_container)) {
container = Long.valueOf(a.getString(R.styleable.Favorite_container));
}
String screen = a.getString(R.styleable.Favorite_screen);
String x = a.getString(R.styleable.Favorite_x);
String y = a.getString(R.styleable.Favorite_y);
// If we are adding to the hotseat, the screen is used as the position in the
// hotseat. This screen can't be at position 0 because AllApps is in the
// zeroth position.
if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT
&& Integer.valueOf(screen) == allAppsButtonRank) {
throw new RuntimeException("Invalid screen position for hotseat item");
}
values.clear();
values.put(LauncherSettings.Favorites.CONTAINER, container);
values.put(LauncherSettings.Favorites.SCREEN, screen);
values.put(LauncherSettings.Favorites.CELLX, x);
values.put(LauncherSettings.Favorites.CELLY, y);
if (TAG_FAVORITE.equals(name)) {
long id = addAppShortcut(db, values, a, packageManager, intent);
added = id >= 0;
} else if (TAG_SEARCH.equals(name)) {
added = addSearchWidget(db, values);
} else if (TAG_CLOCK.equals(name)) {
added = addClockWidget(db, values);
} else if (TAG_APPWIDGET.equals(name)) {
added = addAppWidget(parser, attrs, type, db, values, a, packageManager);
} else if (TAG_SHORTCUT.equals(name)) {
long id = addUriShortcut(db, values, a);
added = id >= 0;
} else if (TAG_FOLDER.equals(name)) {
String title;
int titleResId = a.getResourceId(R.styleable.Favorite_title, -1);
if (titleResId != -1) {
title = mContext.getResources().getString(titleResId);
} else {
title = mContext.getResources().getString(R.string.folder_name);
}
values.put(LauncherSettings.Favorites.TITLE, title);
long folderId = addFolder(db, values);
added = folderId >= 0;
ArrayList<Long> folderItems = new ArrayList<Long>();
int folderDepth = parser.getDepth();
while ((type = parser.next()) != XmlPullParser.END_TAG ||
parser.getDepth() > folderDepth) {
if (type != XmlPullParser.START_TAG) {
continue;
}
final String folder_item_name = parser.getName();
TypedArray ar = mContext.obtainStyledAttributes(attrs,
R.styleable.Favorite);
values.clear();
values.put(LauncherSettings.Favorites.CONTAINER, folderId);
if (TAG_FAVORITE.equals(folder_item_name) && folderId >= 0) {
long id =
addAppShortcut(db, values, ar, packageManager, intent);
if (id >= 0) {
folderItems.add(id);
}
} else if (TAG_SHORTCUT.equals(folder_item_name) && folderId >= 0) {
long id = addUriShortcut(db, values, ar);
if (id >= 0) {
folderItems.add(id);
}
} else {
throw new RuntimeException("Folders can " +
"contain only shortcuts");
}
ar.recycle();
}
// We can only have folders with >= 2 items, so we need to remove the
// folder and clean up if less than 2 items were included, or some
// failed to add, and less than 2 were actually added
if (folderItems.size() < 2 && folderId >= 0) {
// We just delete the folder and any items that made it
deleteId(db, folderId);
if (folderItems.size() > 0) {
deleteId(db, folderItems.get(0));
}
added = false;
}
}
if (added) i++;
a.recycle();
}
} catch (XmlPullParserException e) {
Log.w(TAG, "Got exception parsing favorites.", e);
} catch (IOException e) {
Log.w(TAG, "Got exception parsing favorites.", e);
} catch (RuntimeException e) {
Log.w(TAG, "Got exception parsing favorites.", e);
}
return i;
}
private long addAppShortcut(SQLiteDatabase db, ContentValues values, TypedArray a,
PackageManager packageManager, Intent intent) {
long id = -1;
ActivityInfo info;
String packageName = a.getString(R.styleable.Favorite_packageName);
String className = a.getString(R.styleable.Favorite_className);
try {
ComponentName cn;
try {
cn = new ComponentName(packageName, className);
info = packageManager.getActivityInfo(cn, 0);
} catch (PackageManager.NameNotFoundException nnfe) {
String[] packages = packageManager.currentToCanonicalPackageNames(
new String[] { packageName });
cn = new ComponentName(packages[0], className);
info = packageManager.getActivityInfo(cn, 0);
}
id = generateNewId();
intent.setComponent(cn);
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
values.put(Favorites.INTENT, intent.toUri(0));
values.put(Favorites.TITLE, info.loadLabel(packageManager).toString());
values.put(Favorites.ITEM_TYPE, Favorites.ITEM_TYPE_APPLICATION);
values.put(Favorites.SPANX, 1);
values.put(Favorites.SPANY, 1);
values.put(Favorites._ID, generateNewId());
if (dbInsertAndCheck(this, db, TABLE_FAVORITES, null, values) < 0) {
return -1;
}
} catch (PackageManager.NameNotFoundException e) {
Log.w(TAG, "Unable to add favorite: " + packageName +
"/" + className, e);
}
return id;
}
private long addFolder(SQLiteDatabase db, ContentValues values) {
values.put(Favorites.ITEM_TYPE, Favorites.ITEM_TYPE_FOLDER);
values.put(Favorites.SPANX, 1);
values.put(Favorites.SPANY, 1);
long id = generateNewId();
values.put(Favorites._ID, id);
if (dbInsertAndCheck(this, db, TABLE_FAVORITES, null, values) <= 0) {
return -1;
} else {
return id;
}
}
private ComponentName getSearchWidgetProvider() {
SearchManager searchManager =
(SearchManager) mContext.getSystemService(Context.SEARCH_SERVICE);
ComponentName searchComponent = searchManager.getGlobalSearchActivity();
if (searchComponent == null) return null;
return getProviderInPackage(searchComponent.getPackageName());
}
/**
* Gets an appwidget provider from the given package. If the package contains more than
* one appwidget provider, an arbitrary one is returned.
*/
private ComponentName getProviderInPackage(String packageName) {
AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(mContext);
List<AppWidgetProviderInfo> providers = appWidgetManager.getInstalledProviders();
if (providers == null) return null;
final int providerCount = providers.size();
for (int i = 0; i < providerCount; i++) {
ComponentName provider = providers.get(i).provider;
if (provider != null && provider.getPackageName().equals(packageName)) {
return provider;
}
}
return null;
}
private boolean addSearchWidget(SQLiteDatabase db, ContentValues values) {
ComponentName cn = getSearchWidgetProvider();
return addAppWidget(db, values, cn, 4, 1, null);
}
private boolean addClockWidget(SQLiteDatabase db, ContentValues values) {
ComponentName cn = new ComponentName("com.android.alarmclock",
"com.android.alarmclock.AnalogAppWidgetProvider");
return addAppWidget(db, values, cn, 2, 2, null);
}
private boolean addAppWidget(XmlResourceParser parser, AttributeSet attrs, int type,
SQLiteDatabase db, ContentValues values, TypedArray a,
PackageManager packageManager) throws XmlPullParserException, IOException {
String packageName = a.getString(R.styleable.Favorite_packageName);
String className = a.getString(R.styleable.Favorite_className);
if (packageName == null || className == null) {
return false;
}
boolean hasPackage = true;
ComponentName cn = new ComponentName(packageName, className);
try {
packageManager.getReceiverInfo(cn, 0);
} catch (Exception e) {
String[] packages = packageManager.currentToCanonicalPackageNames(
new String[] { packageName });
cn = new ComponentName(packages[0], className);
try {
packageManager.getReceiverInfo(cn, 0);
} catch (Exception e1) {
hasPackage = false;
}
}
if (hasPackage) {
int spanX = a.getInt(R.styleable.Favorite_spanX, 0);
int spanY = a.getInt(R.styleable.Favorite_spanY, 0);
// Read the extras
Bundle extras = new Bundle();
int widgetDepth = parser.getDepth();
while ((type = parser.next()) != XmlPullParser.END_TAG ||
parser.getDepth() > widgetDepth) {
if (type != XmlPullParser.START_TAG) {
continue;
}
TypedArray ar = mContext.obtainStyledAttributes(attrs, R.styleable.Extra);
if (TAG_EXTRA.equals(parser.getName())) {
String key = ar.getString(R.styleable.Extra_key);
String value = ar.getString(R.styleable.Extra_value);
if (key != null && value != null) {
extras.putString(key, value);
} else {
throw new RuntimeException("Widget extras must have a key and value");
}
} else {
throw new RuntimeException("Widgets can contain only extras");
}
ar.recycle();
}
return addAppWidget(db, values, cn, spanX, spanY, extras);
}
return false;
}
private boolean addAppWidget(SQLiteDatabase db, ContentValues values, ComponentName cn,
int spanX, int spanY, Bundle extras) {
boolean allocatedAppWidgets = false;
final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(mContext);
try {
int appWidgetId = mAppWidgetHost.allocateAppWidgetId();
values.put(Favorites.ITEM_TYPE, Favorites.ITEM_TYPE_APPWIDGET);
values.put(Favorites.SPANX, spanX);
values.put(Favorites.SPANY, spanY);
values.put(Favorites.APPWIDGET_ID, appWidgetId);
values.put(Favorites._ID, generateNewId());
dbInsertAndCheck(this, db, TABLE_FAVORITES, null, values);
allocatedAppWidgets = true;
// TODO: need to check return value
appWidgetManager.bindAppWidgetIdIfAllowed(appWidgetId, cn);
// Send a broadcast to configure the widget
if (extras != null && !extras.isEmpty()) {
Intent intent = new Intent(ACTION_APPWIDGET_DEFAULT_WORKSPACE_CONFIGURE);
intent.setComponent(cn);
intent.putExtras(extras);
intent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
mContext.sendBroadcast(intent);
}
} catch (RuntimeException ex) {
Log.e(TAG, "Problem allocating appWidgetId", ex);
}
return allocatedAppWidgets;
}
private long addUriShortcut(SQLiteDatabase db, ContentValues values,
TypedArray a) {
Resources r = mContext.getResources();
final int iconResId = a.getResourceId(R.styleable.Favorite_icon, 0);
final int titleResId = a.getResourceId(R.styleable.Favorite_title, 0);
Intent intent;
String uri = null;
try {
uri = a.getString(R.styleable.Favorite_uri);
intent = Intent.parseUri(uri, 0);
} catch (URISyntaxException e) {
Log.w(TAG, "Shortcut has malformed uri: " + uri);
return -1; // Oh well
}
if (iconResId == 0 || titleResId == 0) {
Log.w(TAG, "Shortcut is missing title or icon resource ID");
return -1;
}
long id = generateNewId();
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
values.put(Favorites.INTENT, intent.toUri(0));
values.put(Favorites.TITLE, r.getString(titleResId));
values.put(Favorites.ITEM_TYPE, Favorites.ITEM_TYPE_SHORTCUT);
values.put(Favorites.SPANX, 1);
values.put(Favorites.SPANY, 1);
values.put(Favorites.ICON_TYPE, Favorites.ICON_TYPE_RESOURCE);
values.put(Favorites.ICON_PACKAGE, mContext.getPackageName());
values.put(Favorites.ICON_RESOURCE, r.getResourceName(iconResId));
values.put(Favorites._ID, id);
if (dbInsertAndCheck(this, db, TABLE_FAVORITES, null, values) < 0) {
return -1;
}
return id;
}
}
/**
* Build a query string that will match any row where the column matches
* anything in the values list.
*/
static String buildOrWhereString(String column, int[] values) {
StringBuilder selectWhere = new StringBuilder();
for (int i = values.length - 1; i >= 0; i--) {
selectWhere.append(column).append("=").append(values[i]);
if (i > 0) {
selectWhere.append(" OR ");
}
}
return selectWhere.toString();
}
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);
}
}
}
}