Enum FocusableArea 

pub(crate) enum FocusableArea {
    Node {
        node: DomRoot<Node>,
        kind: FocusableAreaKind,
    },
    IFrameViewport {
        iframe_element: DomRoot<HTMLIFrameElement>,
        kind: FocusableAreaKind,
    },
    Viewport,
}

https://html.spec.whatwg.org/multipage/#focusable-area

Variants

Node

Fields

node: DomRoot<Node>

kind: FocusableAreaKind

IFrameViewport

The viewport of an <iframe> element in its containing Document. <iframe>s are focusable areas, but have special behavior when focusing.

Fields

iframe_element: DomRoot<HTMLIFrameElement>

kind: FocusableAreaKind

Viewport

Implementations

impl FocusableArea

pub(crate) fn kind(&self) -> FocusableAreaKind

pub(crate) fn element(&self) -> Option<&Element>

If this focusable area is a node, return it as an Element if it is possible, otherwise return None. This is the Element to use for applying :focus state and for firing blur and focus events if any.

Note: This is currently in a transitional state while the code moves more toward the specification.

pub(crate) fn dom_anchor(&self, document: &Document) -> DomRoot<Node>

https://html.spec.whatwg.org/multipage/#dom-anchor

pub(crate) fn focus_chain(&self) -> Vec<FocusableArea>

Trait Implementations

impl Clone for FocusableArea

fn clone(&self) -> FocusableArea

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for FocusableArea

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for FocusableArea

fn default() -> FocusableArea

Returns the “default value” for a type.

impl MallocSizeOf for FocusableArea

fn size_of(&self, ops: &mut MallocSizeOfOps) -> usize

Measure the heap usage of all descendant heap-allocated structures, but not the space taken up by the value itself.

impl PartialEq for FocusableArea

fn eq(&self, other: &FocusableArea) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Traceable for FocusableArea

unsafe fn trace(&self, tracer: *mut JSTracer)

Trace self.

impl StructuralPartialEq for FocusableArea