DirectoryChooserUI.java 文件源码

/******** implementation of focus listener, for slow click rename cancelling ******/ 

        @Override
        public void focusGained(FocusEvent e) {
            // don't allow to invoke click to rename immediatelly after focus gain
            // what may happen is that tree gains focus by mouse
            // click on selected item - on some platforms selected item
            // is not visible without focus and click to rename will
            // be unwanted and surprising for users

            // see run method
            SwingUtilities.invokeLater(this);
        }