dev/test_dev/test_confirm_modal.R

In samWieczorek/Prostar2: PKG_TITLE

modal_confirm <- modalDialog(
  "Are you sure you want to continue?",
  title = "Deleting files",
  footer = tagList(
    actionButton("cancel", "Cancel"),
    actionButton("ok", "Delete", class = "btn btn-danger")
  )
)

ui <- fluidPage(
  actionButton("delete", "Delete all files?")
)


server <- function(input, output, session) {
  observeEvent(input$delete, {
    showModal(modal_confirm)
  })
  
  observeEvent(input$ok, {
    showNotification("Files deleted")
    removeModal()
  })
  observeEvent(input$cancel, 
               removeModal()
  )
}

shinyApp(ui, server)