New functionality addon

Hello Johannes,

My colleague Toplica and me are working on your ChronoGrapher Vaadin add-on. It is a great component, excellent work. 

We managed to implement server call on event name click and to add theme switching example in the demo. We keep originally behavior of the component and add optional parameter in ChronoGrapher constructor which can enable our feature. In simple demo is example of using this feature. All what you need to do is to initialize component with new ChronoGrapher(true) and to set callback handler which implements EventCliskHandler interface. For now we pass event id and title. It should be enough information but we can easily extend this.

It would be great if you could evaluate our implementation and possibly add it to your original add-on. If you have any question, please be free to contact us.

Best regards
Ivan