Vaadin中的ENTER快捷键和TextArea [英] Both ENTER shortcut and TextArea in Vaadin

问题描述

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

是否要使快捷方式仅在发件人"文本字段中起作用?

Hot to make the shortcut to work only in the from text field?

推荐答案

使用焦点和模糊侦听器删除并添加快捷键:

Use focus and blur listeners to remove and add the shortcut key:

    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();
        }
    });

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