updateShinyTreeMenu: Update the ShinyTreeMenu
In emillykkejensen/ShinyTreeMenu: A clean HTML tree menu with lazy loading

Description Usage Arguments Value See Also Examples

updateShinyTreeMenu() updates the tree menu, when a new level is selected

1	updateShinyTreeMenu(treedata, treemenu_open, level_icons)

`treedata`	data.table; treedata - see details for more
`treemenu_open`	reactive expression; Id belonging to the branch you want to open.
`level_icons`	character; Names of fa-icons to use for the tree - see [ShinyTreeMenuHTML()] for more details.

A HTML class character containing the tree menu

ShinyTreeMenuOutput, renderShinyTreeMenu and ShinyTreeMenuHTML

if (interactive()) {

  shinyApp(

    ui = fluidPage(

      # ShinyTreeMenu uses shinyjs - so remember to include shinyjs in your UI
      shinyjs::useShinyjs(),

      ShinyTreeMenuOutput("treemenu")
    ),

    server = function(input, output, session) {

      # Treedata has to be in the form of a reactive expression
      treedata <- reactive({
        ShinyTreeMenu::treetestdata
      })

      # Use the shiny callModule to render the ShinyTreeMenu
      # Note that you should not include () when adding your reactive treedata
      shiny::callModule(ShinyTreeMenu::renderShinyTreeMenu,
                        id = "treemenu",
                        treedata = treedata,
                        level_icons = "tree")

      # Here you will update the ShinyTreeMenu
      # As with the render function, you should not include () when adding your reactive treedata
      ShinyTreeMenu::updateShinyTreeMenu(
        treedata = treedata,
        treemenu_open = reactive({input$treemenu_open}),
        level_icons = "tree")


      # For the purpose of displaying the selection functionality
      observeEvent(input$treemenu, {
        showModal(
          modalDialog(
            paste("Selected id:", input$treemenu$val,
                  "| Selected level:", input$treemenu$level,
                  "| Selected row:", input$treemenu$row)
          )
        )
      })


    }

  )

}