Shimmer

Shimmer is a temporary animation placeholder for when a service call takes time to return data and we don't want to block rendering the rest of the UI.

If a smooth transition from Shimmer to content is desired, wrap the content node with a Shimmer element and use the isDataLoaded prop to trigger the transition. In cases where the content node is not wrapped in a Shimmer, use the shimmerElements or customElementsGroup props, and once data arrives, manually replace the Shimmer UI with the intended content. See the examples below for reference.

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

Shimmer(...)

ShimmerElementsGroup(...)

ShimmeredDetailsList(...)

Arguments

...

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

Value

Object with shiny.tag class suitable for use in the UI of a Shiny app.

Details

• borderStyle IRawStyle
  Use to set custom styling of the shimmerCircle borders.

• componentRef IRefObject<IShimmerCircle>
  Optional callback to access the IShimmerCircle interface. Use this instead of ref for accessing the public methods and properties of the component.

• height number
  Sets the height of the circle.

• styles IStyleFunctionOrObject<IShimmerCircleStyleProps, IShimmerCircleStyles>
  Call to provide customized styling that will layer on top of the variant rules.

• theme ITheme
  Theme provided by High-Order Component.

• backgroundColor string
  Defines the background color of the space in between and around shimmer elements.

• componentRef IRefObject<IShimmerElementsGroup>
  Optional callback to access the IShimmerElementsGroup interface. Use this instead of ref for accessing the public methods and properties of the component.

• flexWrap boolean
  Optional boolean for enabling flexWrap of the container containing the shimmerElements.

• rowHeight number
  Optional maximum row height of the shimmerElements container.

• shimmerElements IShimmerElement[]
  Elements to render in one group of the Shimmer.

• styles IStyleFunctionOrObject<IShimmerElementsGroupStyleProps, IShimmerElementsGroupStyles>
  Call to provide customized styling that will layer on top of the variant rules.

• theme ITheme
  Theme provided by High-Order Component.

• width string
  Optional width for ShimmerElements container.

• borderStyle IRawStyle
  Use to set custom styling of the shimmerGap borders.

• componentRef IRefObject<IShimmerGap>
  Optional callback to access the IShimmerGap interface. Use this instead of ref for accessing the public methods and properties of the component.

• height number
  Sets the height of the gap.

• styles IStyleFunctionOrObject<IShimmerGapStyleProps, IShimmerGapStyles>
  Call to provide customized styling that will layer on top of the variant rules.

• theme ITheme
  Theme provided by High-Order Component.

• width number | string
  Sets width value of the gap.

• borderStyle IRawStyle
  Use to set custom styling of the shimmerLine borders.

• componentRef IRefObject<IShimmerLine>
  Optional callback to access the IShimmerLine interface. Use this instead of ref for accessing the public methods and properties of the component.

• height number
  Sets the height of the rectangle.

• styles IStyleFunctionOrObject<IShimmerLineStyleProps, IShimmerLineStyles>
  Call to provide customized styling that will layer on top of the variant rules.

• theme ITheme
  Theme provided by High-Order Component.

• width number | string
  Sets width value of the line.

• ariaLabel string
  Localized string of the status label for screen reader

• className string
  Additional CSS class(es) to apply to the Shimmer container.

• componentRef IRefObject<IShimmer>
  Optional callback to access the IShimmer interface. Use this instead of ref for accessing the public methods and properties of the component.

• customElementsGroup React.ReactNode
  Custom elements when necessary to build complex placeholder skeletons.

• isDataLoaded boolean
  Controls when the shimmer is swapped with actual data through an animated transition.

• shimmerColors IShimmerColors
  Defines an object with possible colors to pass for Shimmer customization used on different backgrounds.

• shimmerElements IShimmerElement[]
  Elements to render in one line of the Shimmer.

• styles IStyleFunctionOrObject<IShimmerStyleProps, IShimmerStyles>
  Call to provide customized styling that will layer on top of the variant rules.

• theme ITheme
  Theme provided by High-Order Component.

• width number | string
  Sets the width value of the shimmer wave wrapper.

Examples

library(shiny)
library(shiny.fluent)

ui <- function(id) {
  ns <- NS(id)
  tagList(
    div(
      p("Basic Shimmer with no elements provided. It defaults to a line of 16px height."),
      Shimmer(),
      Shimmer(width = "75%"),
      Shimmer(width = "50%")
    ),
    tags$head(tags$style(
      ".ms-Shimmer-container { margin: 10px 0 }"
    ))
  )
}

server <- function(id) {
  moduleServer(id, function(input, output, session) {})
}

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