tutorial in editor (mechanics only)

[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 7ebecc8..fa6d27b 100644 (file)
--- a/src/editor/modules/documentCanvas/canvas/canvas.js
+++ b/src/editor/modules/documentCanvas/canvas/canvas.js
@@ -86,7 +86,7 @@ var Canvas = function(wlxmlDocument, elements, metadata, sandbox) {
     
 
     this.gutter = gutter.create();
-    this.gutterView = new gutter.GutterView(this.gutter);
+    this.gutterView = new gutter.GutterView(this.gutter, sandbox.getTutorialItem('comment'));
     this.dom.find('.view-row').append(this.gutterView.dom);
     
     this.wlxmlListener = wlxmlListener.create(this);
@@ -274,7 +274,10 @@ $.extend(Canvas.prototype, Backbone.Events, {
                     if(mutation.target.data === '') {
                         mutation.target.data = utils.unicode.ZWS;
                     }
-                    else if(mutation.oldValue === utils.unicode.ZWS) {
+                    if(mutation.target.data === mutation.oldValue) {
+                        return; // shouldn't happen, but better be safe
+                    }
+                    if(mutation.oldValue === utils.unicode.ZWS) {
                         mutation.target.data = mutation.target.data.replace(utils.unicode.ZWS, '');
                         canvas._moveCaretToTextElement(canvas.getDocumentElement(mutation.target), 'end');
                     }