ActionButton {shiny.fluent}R Documentation

Button

Description

Buttons give people a way to trigger an action. They’re typically found in forms, dialog panels, and dialogs. Some buttons are specialized for particular tasks, such as navigation, repeated actions, or presenting menus.

For more details and examples visit the official docs. The R package cannot handle each and every case, so for advanced use cases you need to work using the original docs to achieve the desired result.

Usage

ActionButton(...)

CommandBarButton(...)

CommandButton(...)

CompoundButton(...)

DefaultButton(...)

IconButton(...)

PrimaryButton(...)

ActionButton.shinyInput(inputId, ...)

updateActionButton.shinyInput(
  session = shiny::getDefaultReactiveDomain(),
  inputId,
  ...
)

CommandBarButton.shinyInput(inputId, ...)

updateCommandBarButton.shinyInput(
  session = shiny::getDefaultReactiveDomain(),
  inputId,
  ...
)

CommandButton.shinyInput(inputId, ...)

updateCommandButton.shinyInput(
  session = shiny::getDefaultReactiveDomain(),
  inputId,
  ...
)

CompoundButton.shinyInput(inputId, ...)

updateCompoundButton.shinyInput(
  session = shiny::getDefaultReactiveDomain(),
  inputId,
  ...
)

DefaultButton.shinyInput(inputId, ...)

updateDefaultButton.shinyInput(
  session = shiny::getDefaultReactiveDomain(),
  inputId,
  ...
)

IconButton.shinyInput(inputId, ...)

updateIconButton.shinyInput(
  session = shiny::getDefaultReactiveDomain(),
  inputId,
  ...
)

PrimaryButton.shinyInput(inputId, ...)

updatePrimaryButton.shinyInput(
  session = shiny::getDefaultReactiveDomain(),
  inputId,
  ...
)

Arguments

...

Props to pass to the component. The allowed props are listed below in the Details section.

inputId

ID of the component.

session

Object passed as the session argument to Shiny server.

Details

Besides the compound button, other button types will need more information provided to screen reader.

Note: This increases the time the button will take to mount, but can improve perceived menu open perf. when the user opens the menu.

Value

Object with shiny.tag class suitable for use in the UI of a Shiny app. The update functions return nothing (called for side effects).

Best practices

Layout

Content

Examples

# Example 1
library(shiny)
library(shiny.fluent)

tokens <- list(childrenGap = 20)

ui <- function(id) {
  ns <- NS(id)
  tags$div(
    Stack(
      DefaultButton.shinyInput(
        ns("button1"),
        text = "Default Button",
        styles = list("background: green")
      ),
      PrimaryButton.shinyInput(
        ns("button2"),
        text = "Primary Button"
      ),
      CompoundButton.shinyInput(
        ns("button3"),
        secondaryText = "Compound Button has additional text",
        text = "Compound Button"
      ),
      ActionButton.shinyInput(
        ns("button4"),
        iconProps = list("iconName" = "AddFriend"),
        text = "Action Button"
      ),
      horizontal = TRUE,
      tokens = tokens
    ),
    textOutput(ns("text"))
  )
}

server <- function(id) {
  moduleServer(id, function(input, output, session) {
    clicks <- reactiveVal(0)
    addClick <- function() { clicks(isolate(clicks() + 1)) }
    observeEvent(input$button0, addClick())
    observeEvent(input$button1, addClick())
    observeEvent(input$button2, addClick())
    observeEvent(input$button3, addClick())
    observeEvent(input$button4, addClick())
    output$text <- renderText({
      paste0("Clicks:", clicks())
    })
  })
}

if (interactive()) {
  shinyApp(ui("app"), function(input, output) server("app"))
}

# Example 2
library(shiny)
library(shiny.fluent)

# Split button with menu
menuProps <- list(
  items = list(
    list(
      key = "emailMessage",
      text = "Email message",
      onClick = JS("() => alert('Email message clicked')"),
      iconProps = list(
        iconName = "Mail"
      )
    ),
    list(
      key = "calendarEvent",
      text = "Calendar event",
      onClick = JS("() => alert('Calendar event clicked')"),
      iconProps = list(
        iconName = "Calendar"
      )
    )
  )
)

ui <- function(id) {
  ns <- NS(id)
  fluentPage(
    Stack(
      horizontal = TRUE,
      wrap = TRUE,
      tokens = list(
        childrenGap = 40
      ),
      DefaultButton.shinyInput(
        inputId = ns("button_1"),
        text = "Standard",
        primary = FALSE,
        split = TRUE,
        splitButtonAriaLabel = "See 2 options",
        `aria-roledescription` = "split button",
        menuProps = menuProps,
        disabled = FALSE,
        checked = FALSE
      ),
      DefaultButton.shinyInput(
        inputId = ns("button_2"),
        text = "Primary",
        primary = TRUE,
        split = TRUE,
        splitButtonAriaLabel = "See 2 options",
        `aria-roledescription` = "split button",
        menuProps = menuProps,
        disabled = FALSE,
        checked = FALSE
      ),
      DefaultButton.shinyInput(
        inputId = ns("button_3"),
        text = "Main action disabled",
        primaryDisabled = NA,
        split = TRUE,
        splitButtonAriaLabel = "See 2 options",
        `aria-roledescription` = "split button",
        menuProps = menuProps,
        checked = FALSE
      ),
      DefaultButton.shinyInput(
        inputId = ns("button_4"),
        text = "Disabled",
        disabled = TRUE,
        split = TRUE,
        splitButtonAriaLabel = "See 2 options",
        `aria-roledescription` = "split button",
        menuProps = menuProps,
        checked = FALSE
      )
    ),
    uiOutput(ns("text"))
  )
}

server <- function(id) {
  moduleServer(id, function(input, output, session) {
    output$text <- renderUI({
      lapply(seq_len(4), function(i) {
        paste0("button_", i, ": ", input[[paste0("button_", i)]])
      })
    })
  })
}

if (interactive()) {
  shinyApp(ui("app"), function(input, output) server("app"))
}

# Example 3
library(shiny)
library(shiny.fluent)
library(shinyjs)

# This example app shows how to use a Fluent UI Button to trigger a file upload.
# File upload is not natively supported by shiny.fluent so shinyjs is used
# to trigger the file upload input.
ui <- function(id) {
  ns <- NS(id)
  fluentPage(
    useShinyjs(),
    Stack(
      tokens = list(
        childrenGap = 10L
      ),
      horizontal = TRUE,
      DefaultButton.shinyInput(
        inputId = ns("uploadFileButton"),
        text = "Upload File",
        iconProps = list(iconName = "Upload")
      ),
      div(
        style = "
          visibility: hidden;
          height: 0;
          width: 0;
        ",
        fileInput(
          inputId = ns("uploadFile"),
          label = NULL
        )
      )
    ),
    textOutput(ns("file_path"))
  )
}

server <- function(id) {
  moduleServer(id, function(input, output, session) {
    observeEvent(input$uploadFileButton, {
      click("uploadFile")
    })

    output$file_path <- renderText({
      input$uploadFile$name
    })
  })
}

if (interactive()) {
  shinyApp(ui("app"), function(input, output) server("app"))
}

# Example 4
library(shiny)
library(shiny.fluent)
library(shinyjs)

# This example app shows how to use a Fluent UI Button to trigger a file download.
# File download is not natively supported by shiny.fluent so shinyjs is used
# to trigger the file download.
ui <- function(id) {
  ns <- NS(id)
  fluentPage(
    useShinyjs(),
    DefaultButton.shinyInput(
      inputId = ns("downloadButton"),
      text = "Download",
      iconProps = list(iconName = "Download")
    ),
    div(
      style = "visibility: hidden;",
      downloadButton(ns("download"), label = "")
    )
  )
}

server <- function(id) {
  moduleServer(id, function(input, output, session) {
    observeEvent(input$downloadButton, {
      click("download")
    })

    output$download <- downloadHandler(
      filename = function() {
        paste("data-", Sys.Date(), ".csv", sep="")
      },
      content = function(file) {
        write.csv(iris, file)
      }
    )
  })
}

if (interactive()) {
  shinyApp(ui("app"), function(input, output) server("app"))
}
[Package shiny.fluent version 0.4.0 Index]