editor: ui for createing enumerated lists

[fnpeditor.git] / src / smartxml / smartxml.js

diff --git a/src/smartxml/smartxml.js b/src/smartxml/smartxml.js
index 31faef0..c23e06d 100644 (file)
--- a/src/smartxml/smartxml.js
+++ b/src/smartxml/smartxml.js
@@ -583,11 +583,23 @@ $.extend(Document.prototype, Backbone.Events, {
         this._currentTransaction = null;
     },
 
-    transaction: function(callback, context, metadata) {
+    transaction: function(callback, params) {
         var toret;
-        this.startTransaction(metadata);
-        toret = callback.call(context);
+        params = params || {};
+        this.startTransaction(params.metadata);
+        try {
+            toret = callback.call(params.context || this);
+        } catch(e) {
+            if(params.error) {
+                params.error(e);
+            }
+            this.rollbackTransaction();
+            return;
+        }
         this.endTransaction();
+        if(params.success) {
+            params.success(toret);
+        }
         return toret;
     },