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on_hover: pass MouseEvent to the user #988
Description
Currently, Plotly doesn't pass the raw MouseEvent to the user. I'd like to use clientX and clientY to determine the location of the user's cursor at the time the hover event was fired to render a custom tooltip.
would like to augment the hover event, something like on_hover: (data, event)
Activity
rreusser commentedon Sep 28, 2016
@etpinard we've been discussing object containers for data so that we can bundle more information along with event callbacks. I don't know precisely what this means for backwards compatibility (i.e. which fraction of events do this already), but perhaps this is a use-case. I think ideally all events would pass an object (or at least a variable-list length of arguments) so that items like this could at least be added without versioning fears.
etpinard commentedon Sep 28, 2016
Yeah, that would be nice.
I'll referenced #168 and #145 but this request deserves a ticker of its own. Thanks @CalvinFernandez
I would prefer that our
plotly_events pass one lone object as event data, so maybe the signature could be:Implementing for cartesian plots should be easy. Doing the same for our
gl3dplots will be a bit of a headache though.rreusser commentedon Sep 28, 2016
Does this require a major version bump?
etpinard commentedon Sep 28, 2016
Not if we link the event object to the existing
eventDataobject.etpinard commentedon Mar 14, 2017
cc @n-riesco
etpinard commentedon May 16, 2017
Done in #1505