Struct IFrameCollection 

pub(crate) struct IFrameCollection {
    iframes: DomRefCell<Vec<IFrame>>,
    iframes_in_insertion_order: DomRefCell<Vec<Dom<HTMLIFrameElement>>>,
}

Fields

iframes: DomRefCell<Vec<IFrame>>

The <iframe>s in the collection. These are kept in DOM tree order to ensure that requestAnimationFrame callbacks respect that order.

iframes_in_insertion_order: DomRefCell<Vec<Dom<HTMLIFrameElement>>>

The same <iframe>s in Self::iframes, but stored in insertion order for use in the WindowProxy subframe getter.

Implementations

impl IFrameCollection

pub(crate) fn new() -> Self

pub(crate) fn add(&self, no_gc: &NoGC, iframe_element: &HTMLIFrameElement)

pub(crate) fn remove( &self, no_gc: &NoGC, iframe_element: &HTMLIFrameElement, ) -> Option<ViewportDetails>

pub(crate) fn at_insertion_index( &self, index: usize, ) -> Option<BrowsingContextId>

Get the BrowsingContextId of the <iframe> element at the given position in insertion order, filtering out <iframe>s that do not have a browsing context.

pub(crate) fn active_iframe_count(&self) -> usize

Get a count of the iframes in this [IframeCollection] that have active browsing contexts.

pub(crate) fn element( &self, browsing_context_id: BrowsingContextId, ) -> Option<DomRoot<HTMLIFrameElement>>

Get an iframe elment matching the provided browsing context id, if it exists.

pub(crate) fn viewport_details( &self, browsing_context_id: BrowsingContextId, ) -> Option<ViewportDetails>

Get the viewport details for the iframe matching the provided browsing context id, if it exists.

fn set_viewport_details( &self, no_gc: &NoGC, browsing_context_id: BrowsingContextId, new_size: ViewportDetails, ) -> Option<ViewportDetails>

Set the size of an <iframe> in the collection given its BrowsingContextId and the new size. Returns the old size.

pub(crate) fn handle_new_iframe_sizes_after_layout( &self, cx: &mut JSContext, window: &Window, new_iframe_sizes: IFrameSizes, )

Update the recorded iframe sizes of the contents of layout. Return a Vec<IFrameSizeMsg> containing the messages to send to the Constellation. A message is only sent when the size actually changes.

pub(crate) fn iter( &self, ) -> impl Iterator<Item = DomRoot<HTMLIFrameElement>> + use<'_>

Trait Implementations

impl Default for IFrameCollection

fn default() -> IFrameCollection

Returns the “default value” for a type.

impl MallocSizeOf for IFrameCollection

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 IFrameCollection

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

Trace self.