Combining plotly plots by subplot doesn't seem to be compatible with event_data() source

[niekverw]

I would like to be able to use event_data() in plots that are combined and be able to process clicks on a sub plot. As I understand, combining plotly plots is solely possible with subplot. However, it seems that the source command isn't supported by subplot, which is needed to direct event_data().

source: a character string of length 1. Match the value of this string with the source argument in event_data() to retrieve the event data corresponding to a specific plot (shiny apps can have multiple plots).

e.g. this doesn't work

subplot(ggplotly(p1, source="source_rp"), p2 , nrows = 2, margin = 0.09, heights = c(0.8, 0.2))

this also doesn't work

subplot(p1, p2 , nrows = 2, margin = 0.09, heights = c(0.8, 0.2), source="source_rp")

Is there a way around this? or is this not yet implemented?

the error that I am getting is: Warning: Can only have one: source

[cpsievert]

One way to do this would be to set the source ID to the same plot object going into subplot(), like this:

s <- subplot(
  ggplotly(qplot(1:10), source="myID"), 
  ggplotly(qplot(1:10), source="myID"), 
  plot_ly(x = 1:10, y = 1:10, source = "myID")
)

You can check it did the right thing like this

s$x$source
#> [1] "myID"

Is that's too much of a hassle you could also set the source ID after-the-fact:

s$x$source <- "otherID"

[cpsievert]

Also, Warning: Can only have one: source is a warning, not an error