DEBUG

Added lots of log calls and a couple small 'fixes' (attempts)

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

@@ -147,23 +147,31 b' var IPython = (function (IPython) {'
         }
         if (this.code_mirror) {
             this.code_mirror.on('focus', function(cm, change) {
-                $([IPython.events]).trigger('edit_mode.Cell', {cell: that});
+                console.log('cell focused');
+                if (that._continue_blur) {
+                    that._continue_blur = false;
+                } else {
+                    if (that.mode === 'command') {
+                        $([IPython.events]).trigger('edit_mode.Cell', {cell: that});
+                    }
+                }
             });
         }
         if (this.code_mirror) {
             this.code_mirror.on('blur', function(cm, change) {
-                if (that.mode === 'edit') {
-                    setTimeout(function () {
+                console.log('cell blur');
+                that._continue_blur = true;
+                setTimeout($.proxy(function () {
+                    if (that._continue_blur) {
+                        console.log('cell blur> edit true> callback');
                         var isf = IPython.utils.is_focused;
-                        var trigger = true;
-                        if (isf('div#tooltip') || isf('div.completions')) {
-                            trigger = false;
-                        }
-                        if (trigger) {
-                            $([IPython.events]).trigger('command_mode.Cell', {cell: that});
+                        if (! (isf('div#tooltip') || isf('div.completions'))) {
+                            if (that.mode === 'edit') {
+                                $([IPython.events]).trigger('command_mode.Cell', {cell: that});
+                            }
                         }
-                    }, 1);
-                }
+                    }
+                }, that), 1);
             });
         }
     };

IPython/html/static/notebook/js/keyboardmanager.js

@@ -725,29 +725,35 b' var IPython = (function (IPython) {'
     };
 
     KeyboardManager.prototype.edit_mode = function () {
+        console.log('kb edit');
         this.last_mode = this.mode;
         this.mode = 'edit';
     };
 
     KeyboardManager.prototype.command_mode = function () {
+        console.log('kb command');
         this.last_mode = this.mode;
         this.mode = 'command';
     };
 
     KeyboardManager.prototype.enable = function () {
+        console.log('kb enable');
         this.enabled = true;
     };
 
     KeyboardManager.prototype.disable = function () {
+        console.log('kb disable');
         this.enabled = false;
     };
 
     KeyboardManager.prototype.register_events = function (e) {
         var that = this;
         e.on('focusin', function () {
+            console.log('kb focus in');
             that.disable();
         });
         e.on('focusout', function () {
+            console.log('kb focus out');
             that.enable();
         });
         // There are times (raw_input) where we remove the element from the DOM before
@@ -755,6 +761,7 b' var IPython = (function (IPython) {'
         // which gets triggered upon removal, iff it is focused at the time.
         e.on('remove', function () {
             if (document.activeElement === e[0]) {
+                console.log('kb remove');
                 that.enable();
             }
         });

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

@@ -116,12 +116,18 b' var IPython = (function (IPython) {'
         });
 
         $([IPython.events]).on('edit_mode.Cell', function (event, data) {
+            console.log('edit mode cell');
             var index = that.find_cell_index(data.cell);
             that.select(index);
             that.edit_mode();
         });
 
         $([IPython.events]).on('command_mode.Cell', function (event, data) {
+            console.log('command mode cell');
+            // In Firefox the focus event is called before the blur event.  In 
+            // other words, two cells elements may be focused at any given time.
+            // Here we verify that no cells are currently in edit mode before 
+            // putting the entire notebook in command mode.     
             that.command_mode();
         });
 
@@ -459,7 +465,6 b' var IPython = (function (IPython) {'
         if (this.is_valid_cell_index(index)) {
             var sindex = this.get_selected_index();
             if (sindex !== null && index !== sindex) {
-                this.command_mode();
                 this.get_cell(sindex).unselect();
             }
             var cell = this.get_cell(index);
@@ -515,6 +520,7 b' var IPython = (function (IPython) {'
     };
 
     Notebook.prototype.command_mode = function () {
+        console.log('cell.command_mode');
         if (this.mode !== 'command') {
             $([IPython.events]).trigger('command_mode.Notebook');
             var index = this.get_edit_index();
@@ -528,6 +534,7 b' var IPython = (function (IPython) {'
     };
 
     Notebook.prototype.edit_mode = function () {
+        console.log('cell.edit_mode');
         if (this.mode !== 'edit') {
             $([IPython.events]).trigger('edit_mode.Notebook');
             var cell = this.get_selected_cell();
@@ -1402,6 +1409,7 b' var IPython = (function (IPython) {'
         var cell = this.get_selected_cell();
         var cell_index = this.find_cell_index(cell);
         
+        console.log('execute cell command_mode');
         cell.execute();
         this.command_mode();
         cell.focus_cell();
@@ -1923,6 +1931,7 b' var IPython = (function (IPython) {'
      */
     Notebook.prototype.load_notebook_success = function (data, status, xhr) {
         this.fromJSON(data);
+        console.log('load notebook success');
         if (this.ncells() === 0) {
             this.insert_cell_below('code');
             this.select(0);