Add history on focus loss feature for SearchTextField

A new checkbox is added to allow users to choose whether to add history on focus loss in the SearchTextField application. The respective fields are bound to the selected property of this new checkbox.

gemsfx-demo/src/main/java/com/dlsc/gemsfx/demo/SearchTextFieldApp.java

@@ -49,6 +49,11 @@ public void start(Stage primaryStage) throws Exception {
         field1.addingItemToHistoryOnEnterProperty().bind(addHistoryOnActionBox.selectedProperty());
         field2.addingItemToHistoryOnEnterProperty().bind(addHistoryOnActionBox.selectedProperty());
 
+        CheckBox addHistoryOnFocusLossBox = new CheckBox("Add History on Focus Loss");
+        addHistoryOnFocusLossBox.setSelected(true);
+        field1.addingItemToHistoryOnFocusLostProperty().bind(addHistoryOnFocusLossBox.selectedProperty());
+        field2.addingItemToHistoryOnFocusLostProperty().bind(addHistoryOnFocusLossBox.selectedProperty());
+
         Button setHistoryButton = new Button("Set History");
         setHistoryButton.setMaxWidth(Double.MAX_VALUE);
         setHistoryButton.setOnAction(e -> {
@@ -75,7 +80,7 @@ public void start(Stage primaryStage) throws Exception {
         });
 
         VBox vbox = new VBox(20, new Label("Standard"), field1, new Label("Round"), field2,
-                new Separator(), maxHistorySizeBox, enableHistoryPopupBox, addHistoryOnActionBox,
+                new Separator(), maxHistorySizeBox, enableHistoryPopupBox, addHistoryOnActionBox, addHistoryOnFocusLossBox,
                 setHistoryButton, addHistoryButton, removeStandardHistoryButton, removeRoundHistoryButton, clearButton);
         vbox.setPadding(new Insets(20));