wip: experiments with Canvas support for exercise.assign

[fnpeditor.git] / src / editor / modules / documentCanvas / canvas / canvas.js

diff --git a/src/editor/modules/documentCanvas/canvas/canvas.js b/src/editor/modules/documentCanvas/canvas/canvas.js
index 3dac88f..5d432ea 100644 (file)
--- a/src/editor/modules/documentCanvas/canvas/canvas.js
+++ b/src/editor/modules/documentCanvas/canvas/canvas.js
@@ -97,6 +97,15 @@ var Canvas = function(wlxmlDocument, elements, metadata, sandbox) {
 
 $.extend(Canvas.prototype, Backbone.Events, {
 
+    createElementType: function(elementPrototype) {
+        /* TODO: reconcile this with ElementsRegister behavior */
+        var Constructor = function() {
+            documentElement.DocumentNodeElement.apply(this, Array.prototype.slice.call(arguments, 0));
+        };
+        Constructor.prototype = elementPrototype;
+        return Constructor;
+    },
+
     getElementOffset: function(element) {
         return element.dom.offset().top - this.dom.offset().top;
     },
@@ -111,8 +120,11 @@ $.extend(Canvas.prototype, Backbone.Events, {
         this.reloadRoot();
     },
 
-    createElement: function(wlxmlNode, register, useRoot) {
+    createElement: function(wlxmlNode, register, useRoot, params) {
         var Factory;
+        params = params || {
+            mirror: false
+        };
         register = register || this.elementsRegister;
         if(wlxmlNode.nodeType === Node.TEXT_NODE) {
             Factory = documentElement.DocumentTextElement;
@@ -127,7 +139,7 @@ $.extend(Canvas.prototype, Backbone.Events, {
         }
 
         if(Factory) {
-            return new Factory(wlxmlNode, this);
+            return new Factory(wlxmlNode, this, params);
         }
     },