add context support

[hhhonzik]

I am using react-gemini-scrollbar library in my project and i find it very helpful.

But today I was adding react-scroll library which needs a containerId - which can be obtained with scrollbar.getViewElement().

I added context support to the component, so now you can get the instance like this:

class Button extends React.Component {
  static contextTypes = {
    geminiScrollbar: React.PropTypes.object
  };

  onClick() {
    console.log(this.context.geminiScrollbar.get().getViewElement);
  }

I also refactored the component as Class while doing that.

[JakubKontra]

+1

[milan182]

+1

This will really helpful - We need to add our own scroll event listener on the scrollbar.getViewElement() to implement a infinite scroll feature.

[neolectron]

up ? :)