GUACAMOLE-723: Allow mouse interaction with the contents of a menu without closing the menu.

guacamole/src/main/webapp/app/navigation/directives/guacMenu.js

@@ -52,6 +52,14 @@ angular.module('navigation').directive('guacMenu', [function guacMenu() {
              */
             var element = $element[0];
 
+            /**
+             * The element containing the menu contents that display when the
+             * menu is open.
+             *
+             * @type Element
+             */
+            var contents = $element.find('.menu-contents')[0];
+
             /**
              * The main document object.
              *
@@ -85,6 +93,11 @@ angular.module('navigation').directive('guacMenu', [function guacMenu() {
                 e.stopPropagation();
             }, false);
 
+            // Prevent click within menu contents from toggling menu visibility
+            contents.addEventListener('click', function clickInsideMenuContents(e) {
+                e.stopPropagation();
+            }, false);
+
         }] // end controller
 
     };