am 0fe505bf: Autoinstalls loading xml

* commit '0fe505bf82a265e51c556d7204976651cde7f55c': Autoinstalls loading xml
2014-08-12 21:40:54 +00:00
parent cb7898efbb 0fe505bf82
commit 29f6caa07d
7 changed files with 654 additions and 126 deletions
@@ -22,10 +22,6 @@
    package="com.android.launcher3">
    <uses-sdk android:targetSdkVersion="19" android:minSdkVersion="16"/>

-    <permission
-        android:name="com.android.launcher3.permission.PRELOAD_WORKSPACE"
-        android:permissionGroup="android.permission-group.SYSTEM_TOOLS"
-        android:protectionLevel="signatureOrSystem" />
    <permission
        android:name="com.android.launcher.permission.INSTALL_SHORTCUT"
        android:permissionGroup="android.permission-group.SYSTEM_TOOLS"
@@ -157,15 +153,6 @@
            >
        </service>

-        <!-- Intent received used to prepopulate the default workspace. -->
-        <receiver
-            android:name="com.android.launcher3.PreloadReceiver"
-            android:permission="com.android.launcher3.permission.PRELOAD_WORKSPACE">
-            <intent-filter>
-                <action android:name="com.android.launcher3.action.PRELOAD_WORKSPACE" />
-            </intent-filter>
-        </receiver>
-
        <receiver
            android:name="com.android.launcher3.WallpaperChangedReceiver">
            <intent-filter>
@@ -16,13 +16,9 @@

 package com.android.launcher3;

-import android.content.Intent;
-import android.content.pm.ApplicationInfo;
 import android.content.pm.PackageManager;
-import android.content.pm.PackageManager.NameNotFoundException;
-import android.content.pm.ResolveInfo;
 import android.content.res.Resources;
-import android.util.Log;
+import android.util.Pair;

 import java.io.File;

@@ -32,8 +28,6 @@ import java.io.File;
 * the system.
 */
 public class Partner {
-    private static final String TAG = "Partner";
-
    /** Marker action used to discover partner */
    private static final String
            ACTION_PARTNER_CUSTOMIZATION = "com.android.launcher3.action.PARTNER_CUSTOMIZATION";
@@ -55,19 +49,9 @@ public class Partner {
     */
    public static synchronized Partner get(PackageManager pm) {
        if (!sSearched) {
-            final Intent intent = new Intent(ACTION_PARTNER_CUSTOMIZATION);
-            for (ResolveInfo info : pm.queryBroadcastReceivers(intent, 0)) {
-                if (info.activityInfo != null &&
-                        (info.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
-                    final String packageName = info.activityInfo.packageName;
-                    try {
-                        final Resources res = pm.getResourcesForApplication(packageName);
-                        sPartner = new Partner(packageName, res);
-                        break;
-                    } catch (NameNotFoundException e) {
-                        Log.w(TAG, "Failed to find resources for " + packageName);
-                    }
-                }
+            Pair<String, Resources> apkInfo = Utilities.findSystemApk(ACTION_PARTNER_CUSTOMIZATION, pm);
+            if (apkInfo != null) {
+                sPartner = new Partner(apkInfo.first, apkInfo.second);
            }
            sSearched = true;
        }
@@ -0,0 +1,564 @@
+/*
+ * 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.LauncherProvider.WorkspaceLoader;
+import com.android.launcher3.LauncherSettings.Favorites;
+
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.HashMap;
+
+/**
+ * This class contains contains duplication of functionality as found in
+ * LauncherProvider#DatabaseHelper. It has been isolated and differentiated in order
+ * to cleanly and separately represent AutoInstall default layout format and policy.
+ */
+public class AutoInstallsLayout implements WorkspaceLoader {
+    private static final String TAG = "AutoInstalls";
+    private static final boolean LOGD = true;
+
+    /** Marker action used to discover a package which defines launcher customization */
+    static final String ACTION_LAUNCHER_CUSTOMIZATION =
+            "com.android.launcher3.action.LAUNCHER_CUSTOMIZATION";
+
+    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, pkg, res, layoutId);
+    }
+
+    // Object Tags
+    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";
+
+    // 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";
+
+    private final Context mContext;
+    private final AppWidgetHost mAppWidgetHost;
+    private final LayoutParserCallback mCallback;
+
+    private final PackageManager mPackageManager;
+    private final ContentValues mValues;
+
+    private final Resources mRes;
+    private final int mLayoutId;
+
+    private SQLiteDatabase mDb;
+
+    public AutoInstallsLayout(Context context, AppWidgetHost appWidgetHost,
+            LayoutParserCallback callback, String packageName, Resources res, int layoutId) {
+        mContext = context;
+        mAppWidgetHost = appWidgetHost;
+        mCallback = callback;
+
+        mPackageManager = context.getPackageManager();
+        mValues = new ContentValues();
+
+        mRes = res;
+        mLayoutId = layoutId;
+    }
+
+    @Override
+    public int loadLayout(SQLiteDatabase db, ArrayList<Long> screenIds) {
+        mDb = db;
+        try {
+            return parseLayout(mRes, mLayoutId, screenIds);
+        } catch (XmlPullParserException | IOException | RuntimeException e) {
+            Log.w(TAG, "Got exception parsing layout.", e);
+            return -1;
+        }
+    }
+
+    private int parseLayout(Resources res, int layoutId, ArrayList<Long> screenIds)
+            throws XmlPullParserException, IOException {
+        final int hotseatAllAppsRank = LauncherAppState.getInstance()
+                .getDynamicGrid().getDeviceProfile().hotseatAllAppsRank;
+
+        XmlResourceParser parser = res.getXml(layoutId);
+        beginDocument(parser, TAG_WORKSPACE);
+        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;
+            }
+
+            mValues.clear();
+            final int container;
+            final long screenId;
+
+            if (HOTSEAT_CONTAINER_NAME.equals(getAttributeValue(parser, ATTR_CONTAINER))) {
+                container = Favorites.CONTAINER_HOTSEAT;
+
+                // Hack: hotseat items are stored using screen ids
+                long rank = Long.parseLong(getAttributeValue(parser, ATTR_RANK));
+                screenId = (rank < hotseatAllAppsRank) ? rank : (rank + 1);
+
+            } else {
+                container = Favorites.CONTAINER_DESKTOP;
+                screenId = Long.parseLong(getAttributeValue(parser, ATTR_SCREEN));
+
+                mValues.put(Favorites.CELLX, getAttributeValue(parser, ATTR_X));
+                mValues.put(Favorites.CELLY, getAttributeValue(parser, ATTR_Y));
+            }
+
+            mValues.put(Favorites.CONTAINER, container);
+            mValues.put(Favorites.SCREEN, screenId);
+
+            TagParser tagParser = tagParserMap.get(parser.getName());
+            if (tagParser == null) {
+                if (LOGD) Log.d(TAG, "Ignoring unknown element tag: " + parser.getName());
+                continue;
+            }
+            long newElementId = tagParser.parseAndAdd(parser, res);
+            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);
+                }
+                count++;
+            }
+        }
+        return count;
+    }
+
+    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());
+        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());
+        return parsers;
+    }
+
+    private interface TagParser {
+        /**
+         * Parses the tag and adds to the db
+         * @return the id of the row added or -1;
+         */
+        long parseAndAdd(XmlResourceParser parser, Resources res)
+                throws XmlPullParserException, IOException;
+    }
+
+    private class AppShortcutParser implements TagParser {
+
+        @Override
+        public long parseAndAdd(XmlResourceParser parser, Resources res) {
+            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) {
+                    Log.w(TAG, "Unable to add favorite: " + packageName + "/" + className, e);
+                }
+                return -1;
+            } else {
+                if (LOGD) Log.d(TAG, "Skipping invalid <favorite> with no component or uri");
+                return -1;
+            }
+        }
+    }
+
+    private class AutoInstallParser implements TagParser {
+
+        @Override
+        public long parseAndAdd(XmlResourceParser parser, Resources res) {
+            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, 1);
+            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);
+        }
+    }
+
+    private class ShortcutParser implements TagParser {
+
+        @Override
+        public long parseAndAdd(XmlResourceParser parser, Resources res) {
+            final String url = getAttributeValue(parser, ATTR_URL);
+            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;
+            }
+
+            if (TextUtils.isEmpty(url) || !Patterns.WEB_URL.matcher(url).matches()) {
+                if (LOGD) Log.d(TAG, "Ignoring shortcut, invalid url: " + url);
+                return -1;
+            }
+            Drawable icon = res.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));
+            final Intent intent = new Intent(Intent.ACTION_VIEW, null)
+                .setData(Uri.parse(url))
+                .setFlags(Intent.FLAG_ACTIVITY_NEW_TASK |
+                        Intent.FLAG_ACTIVITY_RESET_TASK_IF_NEEDED);
+            return addShortcut(res.getString(titleResId), intent, Favorites.ITEM_TYPE_SHORTCUT);
+        }
+    }
+
+    private class AppWidgetParser implements TagParser {
+
+        @Override
+        public long parseAndAdd(XmlResourceParser parser, Resources res)
+                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;
+        }
+    }
+
+    private class FolderParser implements TagParser {
+        private final HashMap<String, TagParser> mFolderElements = getFolderElementsMap();
+
+        @Override
+        public long parseAndAdd(XmlResourceParser parser, Resources res)
+                throws XmlPullParserException, IOException {
+            final String title;
+            final int titleResId = getAttributeResourceValue(parser, ATTR_TITLE, 0);
+            if (titleResId != 0) {
+                title = res.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, res);
+                    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;
+        }
+    }
+
+    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);
+        }
+    }
+
+    /**
+     * Return attribute value, attempting launcher-specific namespace first
+     * before falling back to anonymous attribute.
+     */
+    private 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.
+     */
+    private 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);
+    }
+
+    private static void copyInteger(ContentValues from, ContentValues to, String key) {
+        to.put(key, from.getAsInteger(key));
+    }
+}
@@ -1860,7 +1860,7 @@ public class LauncherModel extends BroadcastReceiver
            } else {
                // Make sure the default workspace is loaded
                Launcher.addDumpLog(TAG, "loadWorkspace: loading default favorites", false);
-                LauncherAppState.getLauncherProvider().loadDefaultFavoritesIfNecessary(0);
+                LauncherAppState.getLauncherProvider().loadDefaultFavoritesIfNecessary();
            }

            // This code path is for our old migration code and should no longer be exercised
@@ -33,11 +33,9 @@ import android.content.OperationApplicationException;
 import android.content.SharedPreferences;
 import android.content.pm.ActivityInfo;
 import android.content.pm.ApplicationInfo;
-import android.content.pm.PackageInfo;
 import android.content.pm.PackageManager;
 import android.content.pm.ResolveInfo;
 import android.content.res.Resources;
-import android.content.res.TypedArray;
 import android.content.res.XmlResourceParser;
 import android.database.Cursor;
 import android.database.SQLException;
@@ -51,15 +49,14 @@ 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.SparseArray;
-import android.util.Xml;

+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.LauncherSettings.Favorites;

 import org.xmlpull.v1.XmlPullParser;
 import org.xmlpull.v1.XmlPullParserException;
@@ -93,8 +90,6 @@ public class LauncherProvider extends ContentProvider {
            "UPGRADED_FROM_OLD_DATABASE";
    static final String EMPTY_DATABASE_CREATED =
            "EMPTY_DATABASE_CREATED";
-    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";
@@ -313,41 +308,41 @@ public class LauncherProvider extends ContentProvider {
    }

    /**
-     * @param workspaceResId that can be 0 to use default or non-zero for specific resource
+     * Loads the default workspace based on the following priority scheme:
+     *   1) From a package provided by play store
+     *   2) From a partner configuration APK, already in the system image
+     *   3) The default configuration for the particular device
     */
-    synchronized public void loadDefaultFavoritesIfNecessary(int origWorkspaceResId) {
+    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");
-            // By default we use our resources
-            Resources res = getContext().getResources();
-            int workspaceResId = origWorkspaceResId;

-            // Use default workspace resource if none provided
-            if (workspaceResId == 0) {
+            WorkspaceLoader 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();
-                    workspaceResId = partnerRes.getIdentifier(Partner.RESOURCE_DEFAULT_LAYOUT,
+                    int workspaceResId = partnerRes.getIdentifier(Partner.RESOURCE_DEFAULT_LAYOUT,
                            "xml", partner.getPackageName());
-                    res = partnerRes;
+                    if (workspaceResId != 0) {
+                        loader = new SimpleWorkspaceLoader(mOpenHelper, partnerRes, workspaceResId);
+                    }
                }
            }
-            if (workspaceResId == 0) {
-                workspaceResId =
-                        sp.getInt(DEFAULT_WORKSPACE_RESOURCE_ID, getDefaultWorkspaceResourceId());
+
+            if (loader == null) {
+                loader = new SimpleWorkspaceLoader(mOpenHelper, getContext().getResources(),
+                        getDefaultWorkspaceResourceId());
            }

            // Populate favorites table with initial favorites
-            SharedPreferences.Editor editor = sp.edit();
-            editor.remove(EMPTY_DATABASE_CREATED);
-            if (origWorkspaceResId != 0) {
-                editor.putInt(DEFAULT_WORKSPACE_RESOURCE_ID, origWorkspaceResId);
-            }
-
-            mOpenHelper.loadFavorites(mOpenHelper.getWritableDatabase(), res, workspaceResId);
+            SharedPreferences.Editor editor = sp.edit().remove(EMPTY_DATABASE_CREATED);
+            mOpenHelper.loadFavorites(mOpenHelper.getWritableDatabase(), loader);
            editor.commit();
        }
    }
@@ -389,12 +384,10 @@ public class LauncherProvider extends ContentProvider {
        mOpenHelper = new DatabaseHelper(getContext());
    }

-    private static class DatabaseHelper extends SQLiteOpenHelper {
+    private static class DatabaseHelper extends SQLiteOpenHelper implements LayoutParserCallback {
        private static final String TAG_RESOLVE = "resolve";
        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";
@@ -789,7 +782,8 @@ public class LauncherProvider extends ContentProvider {
                }

                // Add default hotseat icons
-                loadFavorites(db, mContext.getResources(), R.xml.update_workspace);
+                loadFavorites(db, new SimpleWorkspaceLoader(this, mContext.getResources(),
+                        R.xml.update_workspace));
                version = 9;
            }

@@ -1084,6 +1078,7 @@ public class LauncherProvider extends ContentProvider {
        // 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");
@@ -1092,6 +1087,11 @@ public class LauncherProvider extends ContentProvider {
            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;
        }
@@ -1365,9 +1365,10 @@ public class LauncherProvider extends ContentProvider {
            return intent;
        }

-        private int loadFavorites(SQLiteDatabase db, Resources res, int workspaceResourceId) {
+        private int loadFavorites(SQLiteDatabase db, WorkspaceLoader loader) {
            ArrayList<Long> screenIds = new ArrayList<Long>();
-            int count = loadFavoritesRecursive(db, res, workspaceResourceId, screenIds);
+            // 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);
@@ -1922,7 +1923,7 @@ public class LauncherProvider extends ContentProvider {
            return id;
        }

-        public void migrateLauncher2Shortcuts(SQLiteDatabase db, Uri uri) {
+        private void migrateLauncher2Shortcuts(SQLiteDatabase db, Uri uri) {
            final ContentResolver resolver = mContext.getContentResolver();
            Cursor c = null;
            int count = 0;
@@ -1977,7 +1978,6 @@ public class LauncherProvider extends ContentProvider {
                        final int width = (int) grid.numColumns;
                        final int height = (int) grid.numRows;
                        final int hotseatWidth = (int) grid.numHotseatIcons;
-                        PackageManager pm = mContext.getPackageManager();

                        final HashSet<String> seenIntents = new HashSet<String>(c.getCount());

@@ -2211,7 +2211,7 @@ public class LauncherProvider extends ContentProvider {
     * 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) {
+    private 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]);
@@ -2226,7 +2226,7 @@ public class LauncherProvider extends ContentProvider {
     * Return attribute value, attempting launcher-specific namespace first
     * before falling back to anonymous attribute.
     */
-    static String getAttributeValue(XmlResourceParser parser, String attribute) {
+    private 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) {
@@ -2239,7 +2239,7 @@ public class LauncherProvider extends ContentProvider {
     * Return attribute resource value, attempting launcher-specific namespace
     * first before falling back to anonymous attribute.
     */
-    static int getAttributeResourceValue(XmlResourceParser parser, String attribute,
+    private static int getAttributeResourceValue(XmlResourceParser parser, String attribute,
            int defaultValue) {
        int value = parser.getAttributeResourceValue(
                "http://schemas.android.com/apk/res-auto/com.android.launcher3", attribute,
@@ -2285,4 +2285,29 @@ public class LauncherProvider extends ContentProvider {
            }
        }
    }
+
+    static interface WorkspaceLoader {
+        /**
+         * @param screenIds A mutable list of screen its
+         * @return the number of workspace items added.
+         */
+        int loadLayout(SQLiteDatabase db, ArrayList<Long> screenIds);
+    }
+
+    private static class SimpleWorkspaceLoader implements WorkspaceLoader {
+        private final Resources mRes;
+        private final int mWorkspaceId;
+        private final DatabaseHelper mHelper;
+
+        SimpleWorkspaceLoader(DatabaseHelper helper, Resources res, int workspaceId) {
+            mHelper = helper;
+            mRes = res;
+            mWorkspaceId = workspaceId;
+        }
+
+        @Override
+        public int loadLayout(SQLiteDatabase db, ArrayList<Long> screenIds) {
+            return mHelper.loadFavoritesRecursive(db, mRes, mWorkspaceId, screenIds);
+        }
+    }
 }
@@ -1,51 +0,0 @@
-/*
- * Copyright (C) 2012 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.content.BroadcastReceiver;
-import android.content.Context;
-import android.content.Intent;
-import android.os.AsyncTask;
-import android.text.TextUtils;
-import android.util.Log;
-
-public class PreloadReceiver extends BroadcastReceiver {
-    private static final String TAG = "Launcher.PreloadReceiver";
-    private static final boolean LOGD = false;
-
-    public static final String EXTRA_WORKSPACE_NAME =
-            "com.android.launcher3.action.EXTRA_WORKSPACE_NAME";
-
-    @Override
-    public void onReceive(Context context, Intent intent) {
-        final LauncherProvider provider = LauncherAppState.getLauncherProvider();
-        if (provider != null) {
-            String name = intent.getStringExtra(EXTRA_WORKSPACE_NAME);
-            final int workspaceResId = !TextUtils.isEmpty(name)
-                    ? context.getResources().getIdentifier(name, "xml", "com.android.launcher3") : 0;
-            if (LOGD) {
-                Log.d(TAG, "workspace name: " + name + " id: " + workspaceResId);
-            }
-            new AsyncTask<Void, Void, Void>() {
-                public Void doInBackground(Void ... args) {
-                    provider.loadDefaultFavoritesIfNecessary(workspaceResId);
-                    return null;
-                }
-            }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, (Void) null);
-        }
-    }
-}
@@ -38,8 +38,8 @@ import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
 import android.graphics.drawable.PaintDrawable;
 import android.os.Build;
-import android.util.DisplayMetrics;
 import android.util.Log;
+import android.util.Pair;
 import android.util.SparseArray;
 import android.view.View;
 import android.widget.Toast;
@@ -328,9 +328,6 @@ public final class Utilities {

    private static void initStatics(Context context) {
        final Resources resources = context.getResources();
-        final DisplayMetrics metrics = resources.getDisplayMetrics();
-        final float density = metrics.density;
-
        sIconWidth = sIconHeight = (int) resources.getDimension(R.dimen.app_icon_size);
        sIconTextureWidth = sIconTextureHeight = sIconWidth;
    }
@@ -474,4 +471,26 @@ public final class Utilities {
        }
        return bestColor;
    }
+
+    /*
+     * Finds a system apk which had a broadcast receiver listening to a particular action.
+     * @param action intent action used to find the apk
+     * @return a pair of apk package name and the resources.
+     */
+    static Pair<String, Resources> findSystemApk(String action, PackageManager pm) {
+        final Intent intent = new Intent(action);
+        for (ResolveInfo info : pm.queryBroadcastReceivers(intent, 0)) {
+            if (info.activityInfo != null &&
+                    (info.activityInfo.applicationInfo.flags & ApplicationInfo.FLAG_SYSTEM) != 0) {
+                final String packageName = info.activityInfo.packageName;
+                try {
+                    final Resources res = pm.getResourcesForApplication(packageName);
+                    return Pair.create(packageName, res);
+                } catch (NameNotFoundException e) {
+                    Log.w(TAG, "Failed to find resources for " + packageName);
+                }
+            }
+        }
+        return null;
+    }
 }