Merge pull request #4929 from ellisonbg/modal-fixes

Fixing various modal/focus related bugs

closes  #4809
closes  #4951

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

@@ -288,8 +288,16 b' var IPython = (function (IPython) {'
      * @method focus_editor
      */
     Cell.prototype.focus_editor = function () {
+        var that = this;
         this.refresh();
-        this.code_mirror.focus();
+        // Only focus the CM editor if it is not focused already. This prevents jumps
+        // related to the previous prompt position.
+        setTimeout(function () {
+            var isf = IPython.utils.is_focused;
+            if (!isf(that.element.find('div.CodeMirror'))) {
+                that.code_mirror.focus();
+            }
+        }, 1);
     }
 
     /**

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

@@ -740,18 +740,15 b' var IPython = (function (IPython) {'
     KeyboardManager.prototype.register_events = function (e) {
         var that = this;
         e.on('focusin', function () {
-            that.command_mode();
             that.disable();
         });
         e.on('focusout', function () {
-            that.command_mode();
             that.enable();
         });
         // There are times (raw_input) where we remove the element from the DOM before
         // focusout is called. In this case we bind to the remove event of jQueryUI,
         // which gets triggered upon removal.
         e.on('remove', function () {
-            that.command_mode();
             that.enable();
         });
     }

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

@@ -83,13 +83,20 b''
                     console.error("View creation failed", model);
                 }
                 if (cell.widget_subarea) {
-                    
                     cell.widget_area.show();
+                    this._handle_display_view(view);
                     cell.widget_subarea.append(view.$el);
                 }
             }
         };
 
+        WidgetManager.prototype._handle_display_view = function (view) {
+            // Have the IPython keyboard manager disable its event
+            // handling so the widget can capture keyboard input.
+            // Note, this is only done on the outer most widget.
+            IPython.keyboard_manager.register_events(view.$el);
+        };
+
         WidgetManager.prototype.create_view = function(model, options, view) {
             // Creates a view for a particular model.
             var view_name = model.get('_view_name');
@@ -109,24 +116,11 b''
                 view.render();
                 model.views.push(view);
                 model.on('destroy', view.remove, view);
-
-                this._handle_new_view(view);
                 return view;
             }
             return null;
         };
 
-        WidgetManager.prototype._handle_new_view = function (view) {
-            // Called when a view has been created and rendered.
-
-            // If the view has a well defined element, inform the keyboard
-            // manager about the view's element, so as the element can
-            // escape the dreaded command mode.
-            if (view.$el) {
-                IPython.keyboard_manager.register_events(view.$el);
-            }
-        };
-
         WidgetManager.prototype.get_msg_cell = function (msg_id) {
             var cell = null;
             // First, check to see if the msg was triggered by cell execution.