R/mod_Input_module.R

In rforbiodatascience22/group_18_shiny: CentralDogma

#' Input_module UI Function
#'
#' @description A shiny Module.
#'
#' @param id,input,output,session Internal parameters for {shiny}.
#'
#' @noRd
#'
#' @importFrom shiny NS tagList
mod_Input_module_ui <- function(id){
  ns <- NS(id)
  tagList(
    fluidRow(
      column(8, shiny::uiOutput(ns("DNA"))),
      column(4, shiny::numericInput(
        inputId = ns("dna_length"),
        value = 6000,
        min = 3,
        max = 100000,
        step = 3,
        label = "Random DNA length"
      ),
      shiny::actionButton(
        inputId = ns("generate_dna"),
        label = "Generate random DNA", style = "margin-top: 18px;"
      ))
    ),
    shiny::verbatimTextOutput(outputId = ns("peptide")) %>%
      shiny::tagAppendAttributes(style = "white-space: pre-wrap;")

  )
}


#' Input_module Server Functions
#'
#' @noRd
mod_Input_module_server <- function(id){
  moduleServer( id, function(input, output, session){
    ns <- session$ns
    dna <- ""
    observeEvent(input$generate_dna, {
      dna <- centralDogma::random_dna(input$dna_length)
      output$DNA <- renderUI({
        textAreaInput(
          inputId = ns("DNA"),
          label = "DNA sequence",
          placeholder = "Insert DNA sequence",
          value = dna,
          width = 600
        )
      })
    })
  return("dna")
  })
}

## To be copied in the UI
# mod_Input_module_ui("Input_module_1")

## To be copied in the server
# mod_Input_module_server("Input_module_1")