Enum MediaElementWeakRef 

pub(crate) enum MediaElementWeakRef {
    Audio(WeakRef<HTMLAudioElement>),
    Video(WeakRef<HTMLVideoElement>),
}

A weak reference to an HTMLMediaElement, remembering the concrete type of the referenced element.

A WeakRef<HTMLMediaElement> would only remember the parent type, which is not the type an audio or video element is allocated as.

Variants

Audio(WeakRef<HTMLAudioElement>)

Video(WeakRef<HTMLVideoElement>)

Implementations

impl MediaElementWeakRef

pub(crate) fn new(element: &HTMLMediaElement) -> Self

Create a weak reference to the given media element.

pub(crate) fn root(&self) -> Option<DomRoot<HTMLMediaElement>>

Root the referenced element, if it has not been collected yet.

Trait Implementations

impl MallocSizeOf for MediaElementWeakRef

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 Traceable for MediaElementWeakRef

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

Trace self.