NIFI-346:

- Fixing issue when attempting to close dialogs via Esc keystroke. Was exiting method early with dialogs open to prevent other shortcuts.

nifi/nifi-nar-bundles/nifi-framework-bundle/nifi-framework/nifi-web/nifi-web-ui/src/main/webapp/js/nf/canvas/nf-canvas.js

@@ -510,12 +510,24 @@ nf.Canvas = (function () {
         $(window).on('resize', function () {
             updateGraphSize();
         }).on('keydown', function (evt) {
+            var isCtrl = evt.ctrlKey || evt.metaKey;
+            
+            // consider escape, before checking dialogs
+            if (!isCtrl && evt.keyCode === 27) {
+                // esc
+                nf.Actions.hideDialogs();
+
+                evt.preventDefault();
+                return;
+            }
+            
             // if a dialog is open, disable canvas shortcuts
             if ($('.dialog').is(':visible')) {
                 return;
             }
 
-            if (evt.ctrlKey || evt.metaKey) {
+            // handle shortcuts
+            if (isCtrl) {
                 if (evt.keyCode === 82) {
                     // ctrl-r
                     nf.Actions.reloadStatus();
@@ -543,11 +555,6 @@ nf.Canvas = (function () {
                     // delete
                     nf.Actions['delete'](nf.CanvasUtils.getSelection());
 
-                    evt.preventDefault();
-                } else if (evt.keyCode === 27) {
-                    // esc
-                    nf.Actions.hideDialogs();
-
                     evt.preventDefault();
                 }
             }