tabsetPanel() doesn't work with list of panels

[hadley]

It would be nice if tabsetPanel() could work more easily with a list of panels, so you can program with it without needing to know do.call():

panels <- list(
  tabPanel("Plot", "plot"),
  tabPanel("Summary", "summary"),
  tabPanel("Table", "table")
)

ui <- fluidPage(
  tabsetPanel(panels)
)
shinyApp(ui, function(...) {})

ui <- fluidPage(
  do.call(tabsetPanel, panels)
)
shinyApp(ui, function(...) {})

This is somewhat related to #1928 (in the sense that if you fix issue you should also fix this one)

I think you have two main options to fix:

• Automatically splice list inputs (like htmltools)
• Use list2() instead of list to get explicit !!! splicing

[cpsievert]

Seems like the first option would be tricky to get right, especially for nested list situations, so I'd be in favor of option 2 (especially given that tabsetPanel() might be superseded within the next year or so)