apps/toys/Hello/src/main/java/hello/HelloButton.java

rev 9240 : 8076423: JEP 253: Prepare JavaFX UI Controls & CSS APIs for Modularization

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2010, 2014, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2010, 2015, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this

@@ -28,11 +28,11 @@
 
 import javafx.application.Application;
 import javafx.scene.Group;
 import javafx.scene.Scene;
 import javafx.scene.control.Button;
-import javafx.scene.input.KeyEvent;
+
 import javafx.stage.Stage;
 
 public class HelloButton extends Application {
     /**
      * @param args the command line arguments

@@ -49,25 +49,72 @@
         button1.setLayoutX(25);
         button1.setLayoutY(40);
 
         button1.setOnAction(e -> System.out.println("Event: " + e));
 
-        button1.addEventHandler(KeyEvent.KEY_RELEASED, e -> System.out.println("Event: " + e));
+//        // add new mappings
+//        // The J key should fire the button
+//        button1.getInputMap().getMappings().add(new KeyMapping(J, e -> button1.fire()));
+//
+//        // The SPACE key should no longer fire the button (and instead just print text to console)
+//        button1.getInputMap().getMappings().add(new KeyMapping(SPACE, e -> {
+//            System.out.println("This should replace the default action event!");
+//        }));
+//
+//        // The degenerate case where we accept all input - a null KeyCombination matches anything
+//        // and results in firing the button
+//        button1.getInputMap().getMappings().add(new KeyMapping(new KeyBinding(KEY_PRESSED), e -> {
+//            System.out.println("catch-all mapping caught event: " + e);
+//            button1.fire();
+//        }));
+//
+//
+//        // test one: lookup the J mapping and disable it
+//        button1.getInputMap().lookupMapping(new KeyBinding(J)).ifPresent(mapping -> {
+//            System.out.println("disabling J key mapping");
+//            mapping.setDisabled(true);
+//        });
+//
+//        // test two: the degenerate case - we need to iterate through the mappings
+//        // to find the null keyCombination, so that we may install an interceptor
+//        // to block the tab key. This means all keys except tab will work.
+////        button1.getInputMap().lookupMapping(new KeyBinding(KEY_TYPED)).ifPresent(mapping -> {
+////            System.out.println("adding interceptor for Tab key mapping");
+////            mapping.getInterceptors().add(event -> {
+////                if (! (event instanceof KeyEvent)) return true;
+////                return KeyCode.TAB != ((KeyEvent)event).getCode();
+////            });
+////        });
+////        button1.getInputMap().getInterceptors().add(event -> {
+////            if (! (event instanceof KeyEvent)) return true;
+////            return KeyCode.X != ((KeyEvent)event).getCode();
+////        });
+//
+//        button1.getInputMap().getInterceptors().add(new KeyMappingInterceptor(new KeyBinding(SPACE)));
+//
+//        // test three: remove a mapping
+//        button1.getInputMap().lookupMapping(new KeyBinding(J)).ifPresent(mapping -> {
+//            System.out.println("removing J key mapping");
+//            button1.getInputMap().getMappings().remove(mapping);
+//        });
+//
+//        scene.getRoot().addEventHandler(KeyEvent.ANY, e -> System.out.println("e = " + e));
+
 
         ((Group)scene.getRoot()).getChildren().add(button1);
 
         Button button2 = new Button();
         button2.setText("Click Me Too");
         button2.setLayoutX(25);
         button2.layoutYProperty().bind(button1.heightProperty().add(button1.layoutYProperty()));
         ((Group)scene.getRoot()).getChildren().add(button2);
-
-        Button button3 = new Button();
-        button3.setText("Click Me Three");
-        button3.setLayoutX(25);
-        button3.layoutYProperty().bind(button2.heightProperty().add(button2.layoutYProperty()));
-        ((Group)scene.getRoot()).getChildren().add(button3);
+//
+//        Button button3 = new Button();
+//        button3.setText("Click Me Three");
+//        button3.setLayoutX(25);
+//        button3.layoutYProperty().bind(button2.heightProperty().add(button2.layoutYProperty()));
+//        ((Group)scene.getRoot()).getChildren().add(button3);
 
         stage.setScene(scene);
         stage.show();
     }
 }