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#' An example `teal` module
#'
#' `r lifecycle::badge("experimental")`
#'
#' @inheritParams teal_modules
#' @return A `teal` module which can be included in the `modules` argument to [init()].
#' @examples
#' app <- init(
#' data = teal_data(IRIS = iris, MTCARS = mtcars),
#' modules = example_module()
#' )
#' if (interactive()) {
#' shinyApp(app$ui, app$server)
#' }
#' @export
example_module <- function(label = "example teal module", datanames = "all") {
checkmate::assert_string(label)
module(
label,
server = function(id, data) {
checkmate::assert_class(data(), "teal_data")
moduleServer(id, function(input, output, session) {
updateSelectInput(session, "dataname", choices = isolate(teal.data::datanames(data())))
output$text <- renderPrint({
req(input$dataname)
data()[[input$dataname]]
})
teal.widgets::verbatim_popup_srv(
id = "rcode",
verbatim_content = reactive(teal.code::get_code(data())),
title = "Example Code"
)
})
},
ui = function(id) {
ns <- NS(id)
teal.widgets::standard_layout(
output = verbatimTextOutput(ns("text")),
encoding = div(
selectInput(ns("dataname"), "Choose a dataset", choices = NULL),
teal.widgets::verbatim_popup_ui(ns("rcode"), "Show R code")
)
)
},
datanames = datanames
)
}
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