class LienzoPanelMediators {

    @PreDestroy
    public void destroy() {
        if (null != focusHandler) {
            focusHandler.clear();
            focusHandler = null;
        }
    }

    @Inject public  LienzoPanelMediators(final LienzoCanvasMediators mediators,
                                final ZoomLevelSelectorPresenter selector);

}