Callback functions for track movement and chr switch

[kevinyao93]

I've been trying to read through the code and I've been trying to find how to implement callback functions in pileup when I switch the chromosome or drag the track - is this something that's implemented? I haven't been able to find any update or info on this.

[akmorrow13]

Hi @kevinyao93 !

All the code for handling the range change happens here. You can thus track the state of the range in Root.js to detect when the range changes.