Time selection control javascript API

[nikolausWest]

The Rerun web-viewer can be embedded into other web applications that may also be showing data. For instance, Rerun's 2D plotting functionality isn't yet very mature and many teams combine Rerun with more specialized 2D plotting tools like vega-lite or D3.js. This experience would be significantly better if it was possible to sync the Rerun viewer with the surrounding javascript environment. A great first step would be the ability to sync the time cursor position and current timeline between Rerun and javascript.

What?

• Expose a javascript API for setting the current timeline, current timepoint, and playmode from javascript
• Expose js callbacks for getting updates on when those change in Rerun

Future extensions

• We could also expose on-click callbacks to allow people to build simpler data annotation tools around the Rerun embedded web-viewer
• This can be seen as a precursor to New API to request userspace-callbacks from interaction events in visualizer #2691, which in addition requires proper two-way communication with the SDK which is a much bigger story.

[Wumpf]

Closely related to

• Direct frame / sequence jump URL parameters (and CLA parameters) #8318

[ryh-zz]

@Wumpf Are javascript apis in the future?