WordCloudApp.java 文件源码

private TextArea createTextArea()
{
    TextArea textArea = TextArea.wrap(Document.get().getElementById("input_text"));
    textArea.addKeyDownHandler(new KeyDownHandler()
    {
        public void onKeyDown(KeyDownEvent event)
        {
            event.preventDefault();
            if (event.getNativeKeyCode() == KeyCodes.KEY_ENTER)
            {
                createWordCloud();
            }
        }
    });

    return textArea;
}