Boolean if the transition should occur immediately once the component
mounts if the TransitionOptions.transitionIn is true
defaultvalue
false
Optional aria-activedescendant
aria-activedescendant?:string
Identifies the currently active element when DOM focus is on a composite widget, textbox, group, or application.
Optional aria-atomic
aria-atomic?:Booleanish
Indicates whether assistive technologies will present all, or only parts of, the changed region based on the change notifications defined by the aria-relevant attribute.
Indicates whether inputting text could trigger display of one or more predictions of the user's intended value for an input and specifies how predictions would be
presented if they are made.
Optional aria-busy
aria-busy?:Booleanish
Indicates an element is being modified and that assistive technologies MAY want to wait until the modifications are complete before exposing them to the user.
Indicates what functions can be performed when a dragged object is released on the drop target.
deprecated
in ARIA 1.1
Optional aria-errormessage
aria-errormessage?:string
Identifies the element that provides an error message for the object.
see
aria-invalid @see aria-describedby.
Optional aria-expanded
aria-expanded?:Booleanish
Indicates whether the element, or another grouping element it controls, is currently expanded or collapsed.
Optional aria-flowto
aria-flowto?:string
Identifies the next element (or elements) in an alternate reading order of content which, at the user's discretion,
allows assistive technology to override the general default of reading in document source order.
Optional aria-grabbed
aria-grabbed?:Booleanish
Indicates an element's "grabbed" state in a drag-and-drop operation.
Indicates the entered value does not conform to the format expected by the application.
see
aria-errormessage.
Optional aria-keyshortcuts
aria-keyshortcuts?:string
Indicates keyboard shortcuts that an author has implemented to activate or give focus to an element.
Optional aria-label
aria-label?:string
Defines a string value that labels the current element.
see
aria-labelledby.
Optional aria-labelledby
aria-labelledby?:string
Identifies the element (or elements) that labels the current element.
see
aria-describedby.
Optional aria-level
aria-level?:number
Defines the hierarchical level of an element within a structure.
Optional aria-live
aria-live?:"off" | "assertive" | "polite"
Indicates that an element will be updated, and describes the types of updates the user agents, assistive technologies, and user can expect from the live region.
Optional aria-modal
aria-modal?:Booleanish
Indicates whether an element is modal when displayed.
Optional aria-multiline
aria-multiline?:Booleanish
Indicates whether a text box accepts multiple lines of input or only a single line.
Optional aria-multiselectable
aria-multiselectable?:Booleanish
Indicates that the user may select more than one item from the current selectable descendants.
Optional aria-orientation
aria-orientation?:"horizontal" | "vertical"
Indicates whether the element's orientation is horizontal, vertical, or unknown/ambiguous.
Optional aria-owns
aria-owns?:string
Identifies an element (or elements) in order to define a visual, functional, or contextual parent/child relationship
between DOM elements where the DOM hierarchy cannot be used to represent the relationship.
see
aria-controls.
Optional aria-placeholder
aria-placeholder?:string
Defines a short hint (a word or short phrase) intended to aid the user with data entry when the control has no value.
A hint could be a sample value or a brief description of the expected format.
Optional aria-posinset
aria-posinset?:number
Defines an element's number or position in the current set of listitems or treeitems. Not required if all elements in the set are present in the DOM.
Boolean if the menu should not gain the elevation styles and should only be
set to true when rendering within a Sheet.
defaultvalue
false
Optional draggable
draggable?:Booleanish
Optional enter
enter?:boolean
Boolean if the transition should occur whenever the
TransitionOptions.transitionIn is switch to true after the
component has been rendered in the DOM.
defaultvalue
true
Optional exit
exit?:boolean
Boolean if the transition should occur whenever the
TransitionOptions.transitionIn is switch to false after the
component has been rendered in the DOM.
defaultvalue
true
Optional hidden
hidden?:boolean
Optional horizontal
horizontal?:boolean
Boolean if the menu should be rendered horizontally instead of vertically.
This will also update the aria-orientation.
getDefaultFocusIndex(elements: readonly HTMLElement[], container: HTMLDivElement): number
A function that can be used to get the default focus index when the
container element first gains focus. If this returns -1, no child element
will be focused and the container will maintain focus instead.
Parameters
elements: readonly HTMLElement[]
The current list of elements that can be focused within
the container element
@since 5.0.0