plotly_doubleclick event for scatter3d?

[cpsievert]

Seems as though it was never implemented -- https://codepen.io/cpsievert/pen/mQqWrz

Requested as part of plotly/plotly.R#1413

[wkumler]

Any plans to implement this? I spent a little time on it this weekend but didn't make any headway.

[alexcjohnson]

@wkumler no plans, but I'd be happy to get you pointed in the right direction if you'd like to give it a shot. The single-click event for 3D is here:

plotly.js/src/plots/gl3d/scene.js

Line 452 in 12a49c0

gd.emit('plotly_click', eventData);

Unfortunately it can't use the same logic as most of the other click handlers, because it's based on stack.gl and it's just taking events from those packages. So I think the way to handle this is to stash the first click event and timestamp somewhere (on the scene object?), and when you see a new click event check if the eventData is the same and the timestamp is within gd._context.doubleClickDelay of the first click - if so, emit a plotly_doubleclick event first, followed by the plotly_click event you'd have emitted then anyway.

Same eventData isn't exactly the same criterion as used elsewhere to distinguish a doubleclick from two clicks while the mouse is moving, but it should be reasonable.

[gvwilson]

Hi - this issue has been sitting for a while, so as part of our effort to tidy up our public repositories I'm going to close it. If it's still a concern, we'd be grateful if you could open a new issue (with a short reproducible example if appropriate) so that we can add it to our stack. Cheers - @gvwilson