Adding click event handler

[cogitaria-admin]

The show method has a click parameter that accepts a dictionary with some style information:

show(click = {'size': 1.25, 'stroke-width': 3}, ...

This is useful but it's missing the opportunity for interaction. Adding a callback could be used to take some custom action (in addition to styling the node) such as populating a separate HTML element with node details based on the node ID.

[erdogant]

Interesting suggestion. What would be an appropriate manner for interaction and callback?