Trigger a snapshot via keyboard?

[cpsievert]

There may be some scenarios where you'd want to snapshot behavior while a certain DOM element is being hovered upon, so in that case, it'd be awesome to triggered a snapshot via the keyboard.

For example, I can't really test a hovered value with plotly via a screenshot:

[bersbersbers]

@cpsievert is there any public tutorial that you were using for the GIF above? For me, the shinytest recorder is not reacting to hover events over a plotly plot at all. I have come across the hover argument of shiny::plotOutput, but ploty::plotlyOutput does not seem to have that.

I also tried some Shiny.onInputChange('hover_data', ...) in the JavaScript code of my hover tooltip, without success. (Although I am aware that I'd probably need something else for shiny to react to shinytest setting hover_data when the recorded test is played out.)

Edit: I think I should add that from your low-res GIF, I am not sure the shinytest recorder behavior is triggered by the hover itself (which is what I would need) or by the hover changing the state of the Shiny app (which I don't do - at least not visibly). So maybe what I want (snapshot the hover itself) is not possible?

Edit2: With the help of textOutput("myplot_text") and output$myplot_text <- renderText(paste(plotly::event_data("plotly_hover"))), I have been able to get output events in the shinytest recorder at least, so I see the recorder behave in a way compatible with your GIF. But these output events don't translate into the generated script. So I think my question is, can I generate shiny input events from a plotly plot?