Fixing bugs in CodeMirror refreshing.

IPython/frontend/html/notebook/static/js/fulleditwidget.js

@@ -82,14 +82,19 b' var IPython = (function (IPython) {'
         if (this.opened) {
             $('#fulledit_widget').hide();
             $('#main_app').show();
+            //  We may need to add a refresh to all CM based cells after
+            // showing them.
             $('#menubar').show();
             $('body').css({overflow : 'hidden'});
             var code = this.ace_editor.getSession().getValue();
             var cell = IPython.notebook.get_selected_cell();
             if (cell instanceof IPython.CodeCell) {
+                cell.code_mirror.refresh();
                 cell.set_text(code);                
             } else if (cell instanceof IPython.MarkdownCell || cell instanceof IPython.HTMLCell) {
                 cell.edit();
+                // If the cell was already in edit mode, we need to refresh/focus.
+                cell.code_mirror.refresh();
                 cell.code_mirror.focus();
                 cell.set_text(code);
             };

IPython/frontend/html/notebook/static/js/notebook.js

@@ -550,7 +550,6 b' var IPython = (function (IPython) {'
                     text = '';
                 };
                 if (target_cell !== null) {
-                    //if (text === "") {text = target_cell.placeholder;};
                     // The edit must come before the set_text.
                     target_cell.edit();
                     target_cell.set_text(text);
@@ -575,7 +574,6 b' var IPython = (function (IPython) {'
                     text = '';
                 };
                 if (target_cell !== null) {
-                    if (text === "") {text = target_cell.placeholder;};
                     // The edit must come before the set_text.
                     target_cell.edit();
                     target_cell.set_text(text);
@@ -1167,7 +1165,7 b' var IPython = (function (IPython) {'
             this.start_kernel();
         }
         this.select(0);
-        this.notebook.scroll_to_top();
+        this.scroll_to_top();
         IPython.save_widget.update_url();
         IPython.layout_manager.do_resize();
     };

IPython/frontend/html/notebook/static/js/textcell.js

@@ -100,7 +100,8 b' var IPython = (function (IPython) {'
             // refresh/focus/refresh, the to_markdown method won't work.
             this.code_mirror.refresh();
             this.code_mirror.focus();
-            this.code_mirror.refresh();
+            // In some wierd cases we seem to need this extra refresh.
+            //this.code_mirror.refresh();
             this.rendered = false;
             if (this.get_text() === this.placeholder) {
                 this.set_text('');