Modals are temporary pop-ups that take focus from the page or app and require people to interact with them. Unlike a dialog box (Dialog), a modal should be used for hosting lengthy content, such as privacy statements or license agreements, or for asking people to perform complex or multiple actions, such as changing settings.

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

Modal(...)

## Arguments

allowTouchBodyScroll

boolean
Allow body scroll on content and overlay on touch devices. Changing after mounting has no effect.

className

string
Optional class name to be added to the root class

componentRef

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

containerClassName

string
Optional override for container class

dragOptions

IDragOptions
The options to make the modal draggable

enableAriaHiddenSiblings

boolean
Puts aria-hidden=true on all non-ancestors of the current modal, for screen readers. This is an experimental feature that will be graduated to default behavior after testing. This flag will be removed with the next major release.

isBlocking

boolean
Whether the dialog can be light dismissed by clicking outside the dialog (on the overlay).

isDarkOverlay

boolean
Whether the overlay is dark themed.

isModeless

boolean
Whether the dialog should be modeless (e.g. not dismiss when focusing/clicking outside of the dialog). if true: isBlocking is ignored, there will be no overlay (isDarkOverlay is ignored), isClickableOutsideFocusTrap is true, and forceFocusInsideTrap is false

isOpen

boolean
Whether the dialog is displayed.

layerProps

ILayerProps
Defines an optional set of props to be passed through to Layer

onDismiss

(ev?: React.MouseEvent<HTMLButtonElement>) => any
A callback function for when the Modal is dismissed light dismiss, before the animation completes.

onDismissed

() => any
A callback function which is called after the Modal is dismissed and the animation is complete.

onLayerDidMount

() => void
A callback function for when the Modal content is mounted on the overlay layer

overlay

IOverlayProps
Defines an optional set of props to be passed through to Overlay

scrollableContentClassName

string
Optional override for scrollable content class

styles

IStyleFunctionOrObject<IModalStyleProps, IModalStyles>
Call to provide customized styling that will layer on top of the variant rules.

subtitleAriaId

string
ARIA id for the subtitle of the Modal, if any

theme

ITheme
Theme provided by High-Order Component.

titleAriaId

string
ARIA id for the title of the Modal, if any

topOffsetFixed

boolean
Whether the modal should have top offset fixed once opened and expand from the bottom only when the content changes dynamically.

## Best practices

### Layout

• Use a variable width with a minimum width of 288 pixels.

• Use a variable height with a minimum height of 172 pixels.

• Center vertically and horizontally in the available space.

• Always have at least one focusable element inside a modal.

• Blocking modals (Modeless Modal) should be used very sparingly, only when it's critical for people to make a choice or provide information before they can proceed.

• Provide a clear way for people to dismiss the control, such as a Close button, which should always go in the upper right corner.

### Content

• Use sentence-style capitalization—only capitalize the first word. For more info, see Capitalization in the Microsoft Writing Style Guide.

## Examples

if (interactive()) {

ui = tagList(
reactOutput("modal"),
PrimaryButton.shinyInput("showModal", text = "Show modal"),
),
server = function(input, output) {
modalVisible <- reactiveVal(FALSE)
observeEvent(input$showModal, modalVisible(TRUE)) observeEvent(input$hideModal, modalVisible(FALSE))
output\$modal <- renderReact({
Modal(isOpen = modalVisible(),
Stack(tokens = list(padding = "15px", childrenGap = "10px"),
div(style = list(display = "flex"),
Text("Title", variant = "large"),
div(style = list(flexGrow = 1)),
IconButton.shinyInput("hideModal", iconProps = list(iconName = "Cancel")),
),
div(
p("A paragraph of text."),
p("Another paragraph.")
)
)
)
})
}
)
}