| /* |
| * Copyright (C) 2014 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.appwidget.AppWidgetHost; |
| import android.appwidget.AppWidgetManager; |
| import android.content.ComponentName; |
| import android.content.ContentValues; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.pm.ActivityInfo; |
| import android.content.pm.PackageManager; |
| import android.content.res.Resources; |
| import android.content.res.XmlResourceParser; |
| import android.database.sqlite.SQLiteDatabase; |
| import android.graphics.drawable.Drawable; |
| import android.net.Uri; |
| import android.os.Bundle; |
| import android.text.TextUtils; |
| import android.util.Log; |
| import android.util.Pair; |
| import android.util.Patterns; |
| |
| import com.android.launcher3.LauncherProvider.SqlArguments; |
| import com.android.launcher3.LauncherSettings.Favorites; |
| import com.android.launcher3.util.Thunk; |
| |
| import org.xmlpull.v1.XmlPullParser; |
| import org.xmlpull.v1.XmlPullParserException; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.HashMap; |
| |
| /** |
| * Layout parsing code for auto installs layout |
| */ |
| public class AutoInstallsLayout { |
| private static final String TAG = "AutoInstalls"; |
| private static final boolean LOGD = false; |
| |
| /** Marker action used to discover a package which defines launcher customization */ |
| static final String ACTION_LAUNCHER_CUSTOMIZATION = |
| "android.autoinstalls.config.action.PLAY_AUTO_INSTALL"; |
| |
| private static final String LAYOUT_RES = "default_layout"; |
| |
| static AutoInstallsLayout get(Context context, AppWidgetHost appWidgetHost, |
| LayoutParserCallback callback) { |
| Pair<String, Resources> customizationApkInfo = Utilities.findSystemApk( |
| ACTION_LAUNCHER_CUSTOMIZATION, context.getPackageManager()); |
| if (customizationApkInfo == null) { |
| return null; |
| } |
| |
| String pkg = customizationApkInfo.first; |
| Resources res = customizationApkInfo.second; |
| int layoutId = res.getIdentifier(LAYOUT_RES, "xml", pkg); |
| if (layoutId == 0) { |
| Log.e(TAG, "Layout definition not found in package: " + pkg); |
| return null; |
| } |
| return new AutoInstallsLayout(context, appWidgetHost, callback, res, layoutId, |
| TAG_WORKSPACE); |
| } |
| |
| // Object Tags |
| private static final String TAG_INCLUDE = "include"; |
| private static final String TAG_WORKSPACE = "workspace"; |
| private static final String TAG_APP_ICON = "appicon"; |
| private static final String TAG_AUTO_INSTALL = "autoinstall"; |
| private static final String TAG_FOLDER = "folder"; |
| private static final String TAG_APPWIDGET = "appwidget"; |
| private static final String TAG_SHORTCUT = "shortcut"; |
| private static final String TAG_EXTRA = "extra"; |
| |
| private static final String ATTR_CONTAINER = "container"; |
| private static final String ATTR_RANK = "rank"; |
| |
| private static final String ATTR_PACKAGE_NAME = "packageName"; |
| private static final String ATTR_CLASS_NAME = "className"; |
| private static final String ATTR_TITLE = "title"; |
| private static final String ATTR_SCREEN = "screen"; |
| private static final String ATTR_X = "x"; |
| private static final String ATTR_Y = "y"; |
| private static final String ATTR_SPAN_X = "spanX"; |
| private static final String ATTR_SPAN_Y = "spanY"; |
| private static final String ATTR_ICON = "icon"; |
| private static final String ATTR_URL = "url"; |
| |
| // Attrs for "Include" |
| private static final String ATTR_WORKSPACE = "workspace"; |
| |
| // Style attrs -- "Extra" |
| private static final String ATTR_KEY = "key"; |
| private static final String ATTR_VALUE = "value"; |
| |
| private static final String HOTSEAT_CONTAINER_NAME = |
| Favorites.containerToString(Favorites.CONTAINER_HOTSEAT); |
| |
| private static final String ACTION_APPWIDGET_DEFAULT_WORKSPACE_CONFIGURE = |
| "com.android.launcher.action.APPWIDGET_DEFAULT_WORKSPACE_CONFIGURE"; |
| |
| @Thunk final Context mContext; |
| @Thunk final AppWidgetHost mAppWidgetHost; |
| protected final LayoutParserCallback mCallback; |
| |
| protected final PackageManager mPackageManager; |
| protected final Resources mSourceRes; |
| protected final int mLayoutId; |
| |
| private final int mHotseatAllAppsRank; |
| |
| private final long[] mTemp = new long[2]; |
| @Thunk final ContentValues mValues; |
| protected final String mRootTag; |
| |
| protected SQLiteDatabase mDb; |
| |
| public AutoInstallsLayout(Context context, AppWidgetHost appWidgetHost, |
| LayoutParserCallback callback, Resources res, |
| int layoutId, String rootTag) { |
| this(context, appWidgetHost, callback, res, layoutId, rootTag, |
| LauncherAppState.getInstance().getDynamicGrid().getDeviceProfile().hotseatAllAppsRank); |
| } |
| |
| public AutoInstallsLayout(Context context, AppWidgetHost appWidgetHost, |
| LayoutParserCallback callback, Resources res, |
| int layoutId, String rootTag, int hotseatAllAppsRank) { |
| mContext = context; |
| mAppWidgetHost = appWidgetHost; |
| mCallback = callback; |
| |
| mPackageManager = context.getPackageManager(); |
| mValues = new ContentValues(); |
| mRootTag = rootTag; |
| |
| mSourceRes = res; |
| mLayoutId = layoutId; |
| mHotseatAllAppsRank = hotseatAllAppsRank; |
| } |
| |
| /** |
| * Loads the layout in the db and returns the number of entries added on the desktop. |
| */ |
| public int loadLayout(SQLiteDatabase db, ArrayList<Long> screenIds) { |
| mDb = db; |
| try { |
| return parseLayout(mLayoutId, screenIds); |
| } catch (Exception e) { |
| Log.w(TAG, "Got exception parsing layout.", e); |
| return -1; |
| } |
| } |
| |
| /** |
| * Parses the layout and returns the number of elements added on the homescreen. |
| */ |
| protected int parseLayout(int layoutId, ArrayList<Long> screenIds) |
| throws XmlPullParserException, IOException { |
| XmlResourceParser parser = mSourceRes.getXml(layoutId); |
| beginDocument(parser, mRootTag); |
| final int depth = parser.getDepth(); |
| int type; |
| HashMap<String, TagParser> tagParserMap = getLayoutElementsMap(); |
| int count = 0; |
| |
| while (((type = parser.next()) != XmlPullParser.END_TAG || |
| parser.getDepth() > depth) && type != XmlPullParser.END_DOCUMENT) { |
| if (type != XmlPullParser.START_TAG) { |
| continue; |
| } |
| count += parseAndAddNode(parser, tagParserMap, screenIds); |
| } |
| return count; |
| } |
| |
| /** |
| * Parses container and screenId attribute from the current tag, and puts it in the out. |
| * @param out array of size 2. |
| */ |
| protected void parseContainerAndScreen(XmlResourceParser parser, long[] out) { |
| if (HOTSEAT_CONTAINER_NAME.equals(getAttributeValue(parser, ATTR_CONTAINER))) { |
| out[0] = Favorites.CONTAINER_HOTSEAT; |
| // Hack: hotseat items are stored using screen ids |
| long rank = Long.parseLong(getAttributeValue(parser, ATTR_RANK)); |
| out[1] = (rank < mHotseatAllAppsRank) ? rank : (rank + 1); |
| } else { |
| out[0] = Favorites.CONTAINER_DESKTOP; |
| out[1] = Long.parseLong(getAttributeValue(parser, ATTR_SCREEN)); |
| } |
| } |
| |
| /** |
| * Parses the current node and returns the number of elements added. |
| */ |
| protected int parseAndAddNode( |
| XmlResourceParser parser, |
| HashMap<String, TagParser> tagParserMap, |
| ArrayList<Long> screenIds) |
| throws XmlPullParserException, IOException { |
| |
| if (TAG_INCLUDE.equals(parser.getName())) { |
| final int resId = getAttributeResourceValue(parser, ATTR_WORKSPACE, 0); |
| if (resId != 0) { |
| // recursively load some more favorites, why not? |
| return parseLayout(resId, screenIds); |
| } else { |
| return 0; |
| } |
| } |
| |
| mValues.clear(); |
| parseContainerAndScreen(parser, mTemp); |
| final long container = mTemp[0]; |
| final long screenId = mTemp[1]; |
| |
| mValues.put(Favorites.CONTAINER, container); |
| mValues.put(Favorites.SCREEN, screenId); |
| mValues.put(Favorites.CELLX, getAttributeValue(parser, ATTR_X)); |
| mValues.put(Favorites.CELLY, getAttributeValue(parser, ATTR_Y)); |
| |
| TagParser tagParser = tagParserMap.get(parser.getName()); |
| if (tagParser == null) { |
| if (LOGD) Log.d(TAG, "Ignoring unknown element tag: " + parser.getName()); |
| return 0; |
| } |
| long newElementId = tagParser.parseAndAdd(parser); |
| if (newElementId >= 0) { |
| // Keep track of the set of screens which need to be added to the db. |
| if (!screenIds.contains(screenId) && |
| container == Favorites.CONTAINER_DESKTOP) { |
| screenIds.add(screenId); |
| } |
| return 1; |
| } |
| return 0; |
| } |
| |
| protected long addShortcut(String title, Intent intent, int type) { |
| long id = mCallback.generateNewItemId(); |
| mValues.put(Favorites.INTENT, intent.toUri(0)); |
| mValues.put(Favorites.TITLE, title); |
| mValues.put(Favorites.ITEM_TYPE, type); |
| mValues.put(Favorites.SPANX, 1); |
| mValues.put(Favorites.SPANY, 1); |
| mValues.put(Favorites._ID, id); |
| if (mCallback.insertAndCheck(mDb, mValues) < 0) { |
| return -1; |
| } else { |
| return id; |
| } |
| } |
| |
| protected HashMap<String, TagParser> getFolderElementsMap() { |
| HashMap<String, TagParser> parsers = new HashMap<String, TagParser>(); |
| parsers.put(TAG_APP_ICON, new AppShortcutParser()); |
| parsers.put(TAG_AUTO_INSTALL, new AutoInstallParser()); |
| parsers.put(TAG_SHORTCUT, new ShortcutParser(mSourceRes)); |
| return parsers; |
| } |
| |
| protected HashMap<String, TagParser> getLayoutElementsMap() { |
| HashMap<String, TagParser> parsers = new HashMap<String, TagParser>(); |
| parsers.put(TAG_APP_ICON, new AppShortcutParser()); |
| parsers.put(TAG_AUTO_INSTALL, new AutoInstallParser()); |
| parsers.put(TAG_FOLDER, new FolderParser()); |
| parsers.put(TAG_APPWIDGET, new AppWidgetParser()); |
| parsers.put(TAG_SHORTCUT, new ShortcutParser(mSourceRes)); |
| return parsers; |
| } |
| |
| protected interface TagParser { |
| /** |
| * Parses the tag and adds to the db |
| * @return the id of the row added or -1; |
| */ |
| long parseAndAdd(XmlResourceParser parser) |
| throws XmlPullParserException, IOException; |
| } |
| |
| /** |
| * App shortcuts: required attributes packageName and className |
| */ |
| protected class AppShortcutParser implements TagParser { |
| |
| @Override |
| public long parseAndAdd(XmlResourceParser parser) { |
| final String packageName = getAttributeValue(parser, ATTR_PACKAGE_NAME); |
| final String className = getAttributeValue(parser, ATTR_CLASS_NAME); |
| |
| if (!TextUtils.isEmpty(packageName) && !TextUtils.isEmpty(className)) { |
| ActivityInfo info; |
| try { |
| ComponentName cn; |
| try { |
| cn = new ComponentName(packageName, className); |
| info = mPackageManager.getActivityInfo(cn, 0); |
| } catch (PackageManager.NameNotFoundException nnfe) { |
| String[] packages = mPackageManager.currentToCanonicalPackageNames( |
| new String[] { packageName }); |
| cn = new ComponentName(packages[0], className); |
| info = mPackageManager.getActivityInfo(cn, 0); |
| } |
| final Intent intent = new Intent(Intent.ACTION_MAIN, null) |
| .addCategory(Intent.CATEGORY_LAUNCHER) |
| .setComponent(cn) |
| .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | |
| Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED); |
| |
| return addShortcut(info.loadLabel(mPackageManager).toString(), |
| intent, Favorites.ITEM_TYPE_APPLICATION); |
| } catch (PackageManager.NameNotFoundException e) { |
| if (LOGD) Log.w(TAG, "Unable to add favorite: " + packageName + "/" + className, e); |
| } |
| return -1; |
| } else { |
| return invalidPackageOrClass(parser); |
| } |
| } |
| |
| /** |
| * Helper method to allow extending the parser capabilities |
| */ |
| protected long invalidPackageOrClass(XmlResourceParser parser) { |
| if (LOGD) Log.d(TAG, "Skipping invalid <favorite> with no component"); |
| return -1; |
| } |
| } |
| |
| /** |
| * AutoInstall: required attributes packageName and className |
| */ |
| protected class AutoInstallParser implements TagParser { |
| |
| @Override |
| public long parseAndAdd(XmlResourceParser parser) { |
| final String packageName = getAttributeValue(parser, ATTR_PACKAGE_NAME); |
| final String className = getAttributeValue(parser, ATTR_CLASS_NAME); |
| if (TextUtils.isEmpty(packageName) || TextUtils.isEmpty(className)) { |
| if (LOGD) Log.d(TAG, "Skipping invalid <favorite> with no component"); |
| return -1; |
| } |
| |
| mValues.put(Favorites.RESTORED, ShortcutInfo.FLAG_AUTOINTALL_ICON); |
| final Intent intent = new Intent(Intent.ACTION_MAIN, null) |
| .addCategory(Intent.CATEGORY_LAUNCHER) |
| .setComponent(new ComponentName(packageName, className)) |
| .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | |
| Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED); |
| return addShortcut(mContext.getString(R.string.package_state_unknown), intent, |
| Favorites.ITEM_TYPE_APPLICATION); |
| } |
| } |
| |
| /** |
| * Parses a web shortcut. Required attributes url, icon, title |
| */ |
| protected class ShortcutParser implements TagParser { |
| |
| private final Resources mIconRes; |
| |
| public ShortcutParser(Resources iconRes) { |
| mIconRes = iconRes; |
| } |
| |
| @Override |
| public long parseAndAdd(XmlResourceParser parser) { |
| final int titleResId = getAttributeResourceValue(parser, ATTR_TITLE, 0); |
| final int iconId = getAttributeResourceValue(parser, ATTR_ICON, 0); |
| |
| if (titleResId == 0 || iconId == 0) { |
| if (LOGD) Log.d(TAG, "Ignoring shortcut"); |
| return -1; |
| } |
| |
| final Intent intent = parseIntent(parser); |
| if (intent == null) { |
| return -1; |
| } |
| |
| Drawable icon = mIconRes.getDrawable(iconId); |
| if (icon == null) { |
| if (LOGD) Log.d(TAG, "Ignoring shortcut, can't load icon"); |
| return -1; |
| } |
| |
| ItemInfo.writeBitmap(mValues, Utilities.createIconBitmap(icon, mContext)); |
| mValues.put(Favorites.ICON_TYPE, Favorites.ICON_TYPE_RESOURCE); |
| mValues.put(Favorites.ICON_PACKAGE, mIconRes.getResourcePackageName(iconId)); |
| mValues.put(Favorites.ICON_RESOURCE, mIconRes.getResourceName(iconId)); |
| |
| intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | |
| Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED); |
| return addShortcut(mSourceRes.getString(titleResId), |
| intent, Favorites.ITEM_TYPE_SHORTCUT); |
| } |
| |
| protected Intent parseIntent(XmlResourceParser parser) { |
| final String url = getAttributeValue(parser, ATTR_URL); |
| if (TextUtils.isEmpty(url) || !Patterns.WEB_URL.matcher(url).matches()) { |
| if (LOGD) Log.d(TAG, "Ignoring shortcut, invalid url: " + url); |
| return null; |
| } |
| return new Intent(Intent.ACTION_VIEW, null).setData(Uri.parse(url)); |
| } |
| } |
| |
| /** |
| * AppWidget parser: Required attributes packageName, className, spanX and spanY. |
| * Options child nodes: <extra key=... value=... /> |
| */ |
| protected class AppWidgetParser implements TagParser { |
| |
| @Override |
| public long parseAndAdd(XmlResourceParser parser) |
| throws XmlPullParserException, IOException { |
| final String packageName = getAttributeValue(parser, ATTR_PACKAGE_NAME); |
| final String className = getAttributeValue(parser, ATTR_CLASS_NAME); |
| if (TextUtils.isEmpty(packageName) || TextUtils.isEmpty(className)) { |
| if (LOGD) Log.d(TAG, "Skipping invalid <favorite> with no component"); |
| return -1; |
| } |
| |
| ComponentName cn = new ComponentName(packageName, className); |
| try { |
| mPackageManager.getReceiverInfo(cn, 0); |
| } catch (Exception e) { |
| String[] packages = mPackageManager.currentToCanonicalPackageNames( |
| new String[] { packageName }); |
| cn = new ComponentName(packages[0], className); |
| try { |
| mPackageManager.getReceiverInfo(cn, 0); |
| } catch (Exception e1) { |
| if (LOGD) Log.d(TAG, "Can't find widget provider: " + className); |
| return -1; |
| } |
| } |
| |
| mValues.put(Favorites.SPANX, getAttributeValue(parser, ATTR_SPAN_X)); |
| mValues.put(Favorites.SPANY, getAttributeValue(parser, ATTR_SPAN_Y)); |
| |
| // Read the extras |
| Bundle extras = new Bundle(); |
| int widgetDepth = parser.getDepth(); |
| int type; |
| while ((type = parser.next()) != XmlPullParser.END_TAG || |
| parser.getDepth() > widgetDepth) { |
| if (type != XmlPullParser.START_TAG) { |
| continue; |
| } |
| |
| if (TAG_EXTRA.equals(parser.getName())) { |
| String key = getAttributeValue(parser, ATTR_KEY); |
| String value = getAttributeValue(parser, ATTR_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"); |
| } |
| } |
| |
| final AppWidgetManager appWidgetManager = AppWidgetManager.getInstance(mContext); |
| long insertedId = -1; |
| try { |
| int appWidgetId = mAppWidgetHost.allocateAppWidgetId(); |
| |
| if (!appWidgetManager.bindAppWidgetIdIfAllowed(appWidgetId, cn)) { |
| if (LOGD) Log.e(TAG, "Unable to bind app widget id " + cn); |
| return -1; |
| } |
| |
| mValues.put(Favorites.ITEM_TYPE, Favorites.ITEM_TYPE_APPWIDGET); |
| mValues.put(Favorites.APPWIDGET_ID, appWidgetId); |
| mValues.put(Favorites.APPWIDGET_PROVIDER, cn.flattenToString()); |
| mValues.put(Favorites._ID, mCallback.generateNewItemId()); |
| insertedId = mCallback.insertAndCheck(mDb, mValues); |
| if (insertedId < 0) { |
| mAppWidgetHost.deleteAppWidgetId(appWidgetId); |
| return insertedId; |
| } |
| |
| // Send a broadcast to configure the widget |
| if (!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) { |
| if (LOGD) Log.e(TAG, "Problem allocating appWidgetId", ex); |
| } |
| return insertedId; |
| } |
| } |
| |
| protected class FolderParser implements TagParser { |
| private final HashMap<String, TagParser> mFolderElements; |
| |
| public FolderParser() { |
| this(getFolderElementsMap()); |
| } |
| |
| public FolderParser(HashMap<String, TagParser> elements) { |
| mFolderElements = elements; |
| } |
| |
| @Override |
| public long parseAndAdd(XmlResourceParser parser) |
| throws XmlPullParserException, IOException { |
| final String title; |
| final int titleResId = getAttributeResourceValue(parser, ATTR_TITLE, 0); |
| if (titleResId != 0) { |
| title = mSourceRes.getString(titleResId); |
| } else { |
| title = mContext.getResources().getString(R.string.folder_name); |
| } |
| |
| mValues.put(Favorites.TITLE, title); |
| mValues.put(Favorites.ITEM_TYPE, Favorites.ITEM_TYPE_FOLDER); |
| mValues.put(Favorites.SPANX, 1); |
| mValues.put(Favorites.SPANY, 1); |
| mValues.put(Favorites._ID, mCallback.generateNewItemId()); |
| long folderId = mCallback.insertAndCheck(mDb, mValues); |
| if (folderId < 0) { |
| if (LOGD) Log.e(TAG, "Unable to add folder"); |
| return -1; |
| } |
| |
| final ContentValues myValues = new ContentValues(mValues); |
| ArrayList<Long> folderItems = new ArrayList<Long>(); |
| |
| int type; |
| int folderDepth = parser.getDepth(); |
| while ((type = parser.next()) != XmlPullParser.END_TAG || |
| parser.getDepth() > folderDepth) { |
| if (type != XmlPullParser.START_TAG) { |
| continue; |
| } |
| mValues.clear(); |
| mValues.put(Favorites.CONTAINER, folderId); |
| |
| TagParser tagParser = mFolderElements.get(parser.getName()); |
| if (tagParser != null) { |
| final long id = tagParser.parseAndAdd(parser); |
| if (id >= 0) { |
| folderItems.add(id); |
| } |
| } else { |
| throw new RuntimeException("Invalid folder item " + parser.getName()); |
| } |
| } |
| |
| long addedId = folderId; |
| |
| // 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) { |
| // Delete the folder |
| Uri uri = Favorites.getContentUri(folderId, false); |
| SqlArguments args = new SqlArguments(uri, null, null); |
| mDb.delete(args.table, args.where, args.args); |
| addedId = -1; |
| |
| // If we have a single item, promote it to where the folder |
| // would have been. |
| if (folderItems.size() == 1) { |
| final ContentValues childValues = new ContentValues(); |
| copyInteger(myValues, childValues, Favorites.CONTAINER); |
| copyInteger(myValues, childValues, Favorites.SCREEN); |
| copyInteger(myValues, childValues, Favorites.CELLX); |
| copyInteger(myValues, childValues, Favorites.CELLY); |
| |
| addedId = folderItems.get(0); |
| mDb.update(LauncherProvider.TABLE_FAVORITES, childValues, |
| Favorites._ID + "=" + addedId, null); |
| } |
| } |
| return addedId; |
| } |
| } |
| |
| protected 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); |
| } |
| } |
| |
| /** |
| * Return attribute value, attempting launcher-specific namespace first |
| * before falling back to anonymous attribute. |
| */ |
| protected static String getAttributeValue(XmlResourceParser parser, String attribute) { |
| String value = parser.getAttributeValue( |
| "http://schemas.android.com/apk/res-auto/com.android.launcher3", attribute); |
| if (value == null) { |
| value = parser.getAttributeValue(null, attribute); |
| } |
| return value; |
| } |
| |
| /** |
| * Return attribute resource value, attempting launcher-specific namespace |
| * first before falling back to anonymous attribute. |
| */ |
| protected static int getAttributeResourceValue(XmlResourceParser parser, String attribute, |
| int defaultValue) { |
| int value = parser.getAttributeResourceValue( |
| "http://schemas.android.com/apk/res-auto/com.android.launcher3", attribute, |
| defaultValue); |
| if (value == defaultValue) { |
| value = parser.getAttributeResourceValue(null, attribute, defaultValue); |
| } |
| return value; |
| } |
| |
| public static interface LayoutParserCallback { |
| long generateNewItemId(); |
| |
| long insertAndCheck(SQLiteDatabase db, ContentValues values); |
| } |
| |
| @Thunk static void copyInteger(ContentValues from, ContentValues to, String key) { |
| to.put(key, from.getAsInteger(key)); |
| } |
| } |