Fixing widget id restore broadcast.

Ignoring thw broadcast if its not for the main widget host, or if
the Launcher DB is already in use. Launcher already handles missing
widget-Id map broadcast, by binding a new widgetId at runtime.

Bug: 63389280
Change-Id: Iaa9774d6d7adde3711cba9615328020e2b2e66aa

src/com/android/launcher3/AppWidgetsRestoredReceiver.java

@@ -9,10 +9,12 @@ import android.content.Context;
 import android.content.Intent;
 import android.database.Cursor;
 import android.os.Handler;
+import android.support.annotation.WorkerThread;
 import android.util.Log;
 
 import com.android.launcher3.LauncherSettings.Favorites;
 import com.android.launcher3.model.LoaderTask;
+import com.android.launcher3.provider.RestoreDbTask;
 import com.android.launcher3.util.ContentWriter;
 
 public class AppWidgetsRestoredReceiver extends BroadcastReceiver {
@@ -22,6 +24,12 @@ public class AppWidgetsRestoredReceiver extends BroadcastReceiver {
     @Override
     public void onReceive(final Context context, Intent intent) {
         if (AppWidgetManager.ACTION_APPWIDGET_HOST_RESTORED.equals(intent.getAction())) {
+            int hostId = intent.getIntExtra(AppWidgetManager.EXTRA_HOST_ID, 0);
+            Log.d(TAG, "Widget ID map received for host:" + hostId);
+            if (hostId != Launcher.APPWIDGET_HOST_ID) {
+                return;
+            }
+
             final int[] oldIds = intent.getIntArrayExtra(AppWidgetManager.EXTRA_APPWIDGET_OLD_IDS);
             final int[] newIds = intent.getIntArrayExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS);
             if (oldIds.length == newIds.length) {
@@ -42,11 +50,23 @@ public class AppWidgetsRestoredReceiver extends BroadcastReceiver {
     /**
      * Updates the app widgets whose id has changed during the restore process.
      */
+    @WorkerThread
     static void restoreAppWidgetIds(Context context, PendingResult asyncResult,
             int[] oldWidgetIds, int[] newWidgetIds) {
+        AppWidgetHost appWidgetHost = new AppWidgetHost(context, Launcher.APPWIDGET_HOST_ID);
+        if (!RestoreDbTask.isPending(context)) {
+            // Someone has already gone through our DB once, probably LoaderTask. Skip any further
+            // modifications of the DB.
+            Log.e(TAG, "Skipping widget ID remap as DB already in use");
+            for (int widgetId : newWidgetIds) {
+                Log.d(TAG, "Deleting widgetId: " + widgetId);
+                appWidgetHost.deleteAppWidgetId(widgetId);
+            }
+            asyncResult.finish();
+            return;
+        }
         final ContentResolver cr = context.getContentResolver();
         final AppWidgetManager widgets = AppWidgetManager.getInstance(context);
-        AppWidgetHost appWidgetHost = new AppWidgetHost(context, Launcher.APPWIDGET_HOST_ID);
 
         for (int i = 0; i < oldWidgetIds.length; i++) {
             Log.i(TAG, "Widget state restore id " + oldWidgetIds[i] + " => " + newWidgetIds[i]);

src/com/android/launcher3/provider/RestoreDbTask.java

@@ -134,7 +134,7 @@ public class RestoreDbTask {
     }
 
     public static void setPending(Context context, boolean isPending) {
-        FileLog.d(TAG, "Restore data received through full backup");
+        FileLog.d(TAG, "Restore data received through full backup " + isPending);
         Utilities.getPrefs(context).edit().putBoolean(RESTORE_TASK_PENDING, isPending).commit();
     }
 }