valueButton: Take value from selected UI element

In shinyGizmo: Custom Components for Shiny Applications

Take value from selected UI element

Description

The components creates button or link that allows to take any value (or attribute) sourced from DOM element existing in Shiny application and pass it to application server.

Usage

valueButton(
  inputId,
  label,
  selector,
  attribute = "value",
  icon = NULL,
  width = NULL,
  try_binding = TRUE,
  ...
)

valueLink(
  inputId,
  label,
  selector,
  attribute = "value",
  icon = NULL,
  try_binding = TRUE,
  ...
)

Arguments

inputId	Id of the button. The value can be accessed in server with 'input[[inputId]]'.
label	Button label.
selector	CSS selector of element the attribute should be taken from. Set '"window"' or '"document"' to access application 'window' or 'document' object.
attribute	Name of the attribute that should be taken from desired element. For nested properties use '.', e.g. 'style.width' or 'navigator.appName'.
icon	Icon included in button.
width	Width of the button.
try_binding	When 'TRUE' and 'selector' points to Shiny Binding and 'attribute == "value"' it tries to convert sourced input value using registered 'inputHandler'.
...	Extra attributes passed to 'button' or 'a' tag.

Value

A 'shiny.tag' class object defining html structure of the button.

Examples

if (interactive()) {
  library(shiny)
  shinyApp(
    ui = fluidPage(
      tags$textarea(id = "txt"),
      valueButton("val", "Take textarea value", "#txt", attribute = "value")
    ),
    server = function(input, output, session) {
      observeEvent(input$val, print(input$val))
    }
  )
}

shinyGizmo documentation built on March 7, 2023, 7:31 p.m.