class LienzoMediatorsControl extends AbstractCanvasControl<C> implements MediatorsControl<C> {

    void onCanvasLostFocusEvent(final @Observes CanvasLostFocusEvent lostFocusEvent) {
        if (null != canvas && canvas.equals(lostFocusEvent.getCanvas())) {
            mediators.disable();
        }
    }

    @Inject public  LienzoMediatorsControl(final LienzoPanelMediators mediators);

}