Starting work on select/focus logic.

IPython/html/static/notebook/js/cell.js

@@ -39,6 +39,7 var IPython = (function (IPython) {
         this.placeholder = options.placeholder || '';
         this.read_only = options.cm_config.readOnly;
         this.selected = false;
+        this.focused = false;
         this.metadata = {};
         // load this from metadata later ?
         this.user_highlight = 'auto';
@@ -136,7 +137,7 var IPython = (function (IPython) {
     };
 
     /**
-     * should be triggerd when cell is selected
+     * handle cell level logic when a cell is selected
      * @method select
      */
     Cell.prototype.select = function () {
@@ -144,9 +145,8 var IPython = (function (IPython) {
         this.selected = true;
     };
 
-
     /**
-     * should be triggerd when cell is unselected
+     * handle cell level logic when a cell is unselected
      * @method unselect
      */
     Cell.prototype.unselect = function () {
@@ -155,6 +155,24 var IPython = (function (IPython) {
     };
 
     /**
+     * handle cell level logic when a cell is focused
+     * @method focus
+     */
+    Cell.prototype.focus = function () {
+        this.element.addClass('focused');
+        this.focused = true;
+    };
+
+    /**
+     * handle cell level logic when a cell is unfocused
+     * @method unfocus
+     */
+    Cell.prototype.unfocus = function () {
+        this.element.removeClass('focused');
+        this.focused = false;
+    };
+
+    /**
      * should be overritten by subclass
      * @method get_text
      */

IPython/html/static/notebook/js/codecell.js

@@ -306,13 +306,18 var IPython = (function (IPython) {
     CodeCell.prototype.select = function () {
         IPython.Cell.prototype.select.apply(this);
         this.code_mirror.refresh();
-        this.code_mirror.focus();
         this.auto_highlight();
-        // We used to need an additional refresh() after the focus, but
-        // it appears that this has been fixed in CM. This bug would show
-        // up on FF when a newly loaded markdown cell was edited.
     };
 
+    CodeCell.prototype.focus = function () {
+        IPython.Cell.prototype.focus.apply(this);
+        this.code_mirror.focus();
+    };
+
+    CodeCell.prototype.unfocus = function () {
+        IPython.Cell.prototype.focus.apply(this);
+        this.code_mirror.blur();
+    };
 
     CodeCell.prototype.select_all = function () {
         var start = {line: 0, ch: 0};