Vaadin中的ENTER快捷键和TextArea

Question

TextField f = new TextField();
Button b = new Button("Save");
b.setClickShortcut(KeyCode.ENTER); // For quick saving from text field itself

TextArea longText = new TextArea(); // "Enter" is garbled here

是否热衷于使快捷方式仅在“发件人”文本字段中起作用？

Answer 1

使用焦点和模糊侦听器删除和添加快捷键：

    f.addFocusListener(new FocusListener() {
        @Override
        public void focus(FocusEvent event) {
            b.setClickShortcut(KeyCode.ENTER);
        }
    });
    f.addBlurListener(new BlurListener() {
        @Override
        public void blur(BlurEvent event) {
            b.removeClickShortcut();
        }
    });