notiflix-confirm: Confirm dialog with notiflix.js
In dreamRs/shinypop: Collection of Notifications for 'Shiny' Applications

Description Usage Arguments Note Examples

Initialize with use_notiflix_confirm in UI before using nx_confirm server-side. Retrieve value server-side with input$<inputId>.

nx_confirm(
  inputId,
  title,
  message = NULL,
  button_ok = "Ok",
  button_cancel = "Cancel",
  session = shiny::getDefaultReactiveDomain()
)

use_notiflix_confirm(
  backgroundColor = "#f8f8f8",
  borderRadius = "25px",
  backOverlay = TRUE,
  backOverlayColor = "rgba(0,0,0,0.5)",
  titleFontSize = "16px",
  titleColor = "#00b462",
  titleMaxLength = 34,
  messageFontSize = "13px",
  messageMaxLength = 400,
  buttonsFontSize = "14px",
  buttonsMaxLength = 34,
  okButtonColor = "#f8f8f8",
  okButtonBackground = "#00b462",
  cancelButtonColor = "#f8f8f8",
  cancelButtonBackground = "#a9a9a9",
  cssAnimation = TRUE,
  cssAnimationDuration = 360,
  cssAnimationStyle = c("fade", "zoom"),
  plainText = FALSE,
  width = "280px"
)

`inputId`	The `input` slot that will be used to access the value.
`title`	Title of the dialog.
`message`	Message of the dialog.
`button_ok`	Label for OK button.
`button_cancel`	Label for cancel button.
`session`	Shiny session.
`backgroundColor`	Changes the background color.
`borderRadius`	Changes the radius of the corners.
`backOverlay`	If you don't want to use a colored overlay you can change this option to `FALSE`.
`backOverlayColor`	Changes the color of the overlay. You can use HEX, RGB or RGBA.
`titleFontSize`	Changes the font-size of the title text.
`titleColor`	Changes the color of the title text.
`titleMaxLength`	Ignores characters of title text after the specified number.
`messageFontSize`	Changes the font-size of the message text.
`messageMaxLength`	Ignores characters of message text after the specified number.
`buttonsFontSize`	Changes the font-size of the button text.
`buttonsMaxLength`	Ignores characters of button text after the specified number.
`okButtonColor`	Changes the color of the OK button text.
`okButtonBackground`	Changes the background color of the OK button.
`cancelButtonColor`	Changes the color of the CANCEL button text.
`cancelButtonBackground`	Changes the background color of the CANCEL button.
`cssAnimation`	Notiflix uses CSS animations to show/hide the Reports. If you don't want to use CSS animations you can set this option to `FALSE`.
`cssAnimationDuration`	Changes the CSS animations duration as milliseconds. Tip: 360 ms = 0.36 second.
`cssAnimationStyle`	2 types of styles you can use: `"fade"` and `"zoom"`.
`plainText`	Use only plain text (no HTML tags). Default to `FALSE`.
`width`	Changes the width. You can use "px" or "%". Default to `"280px"`.

Configuration is done with use_notiflix_report in UI per application.

if (interactive()) {
  library(shiny)
  
  ui <- fluidPage(
    use_notiflix_confirm(),
    tags$h2("notiflix confirmation pop-up"),
    actionButton("show", "Ask for confirmation"),
    verbatimTextOutput("result")
  )
  
  server <- function(input, output, session) {
    
    observeEvent(input$show, {
      nx_confirm(
        inputId = "confirm",
        title = "Do you want to confirm?",
        message = tags$div(
          tags$b("This is very important !"),
          "You must click one button below !"
        ),
        button_ok = "Sure!",
        button_cancel = "Nope!"
      )
    })
    
    output$result <- renderPrint({
      input$confirm
    })
  }
  
  shinyApp(ui, server)
}