Hide toolbar of rendered text cells.

IPython/html/static/notebook/js/celltoolbar.js

@@ -276,11 +276,11 @@ var IPython = (function (IPython) {
             this.inner_element.append(local_div);
         }
 
-        // If there are no controls hide the toolbar.
-        if (this.ui_controls_list.length) {
-            this.show();
-        } else {
+        // If there are no controls or the cell is a rendered TextCell hide the toolbar.
+        if (!this.ui_controls_list.length || (this.cell instanceof IPython.TextCell && this.cell.rendered)) {
             this.hide();
+        } else {
+            this.show();
         }
     };
 

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

@@ -138,6 +138,9 @@ var IPython = (function (IPython) {
             }
             this.refresh();
         }
+        if (this.celltoolbar.ui_controls_list.length) {
+            this.celltoolbar.show();
+        }
         return cont;
     };
 
@@ -178,6 +181,7 @@ var IPython = (function (IPython) {
      */
     TextCell.prototype.set_rendered = function(text) {
         this.element.find('div.text_cell_render').html(text);
+        this.celltoolbar.hide();
     };