Struct MediaView 

pub struct MediaView {
    pub start_row: u32,
    pub end_row: u32,
    pub kind: MediaKind,
    pub src: String,
    pub poster: String,
    pub alt: String,
    pub sources: Vec<MediaSourceView>,
}

One block-level image, video, or audio: which rows core reserved for it and what to build there. The peer of leaf_core::MediaInfo, and the media analogue of DirectiveView — a frontend skips the rows in start_row..end_row and lays its own view over them, rather than painting the 🖼/🎬/🔊 placeholder glyphs core put there for a surface that can’t.

Fields

start_row: u32

The DocView::rows indices the placeholder occupies.

end_row: u32

kind: MediaKind

Which of the three this is — the view to build.

src: String

The URL to load, already resolved against the current appearance (see LeafDoc::set_dark_appearance). A relative path resolves against the document’s own directory, which core does not know — the host does. Empty only when a <video>/<audio> named neither a src nor a <source>, which is a broken document.

poster: String

A <video>’s poster frame URL, or empty. An image destination, so it loads exactly as an image src does — worth showing before the movie is ready, or in place of one that won’t play.

alt: String

The alt / fallback text, for the view’s accessibility label.

sources: Vec<MediaSourceView>

The <source> alternatives in document order; empty for a plain image.

Trait Implementations

impl<UT> ConvertError<UT> for MediaView

fn try_convert_unexpected_callback_error( e: UnexpectedUniFFICallbackError, ) -> Result<Self>

impl<UT> FfiConverter<UT> for MediaView

const TYPE_ID_META: MetadataBuffer

Type ID metadata, serialized into a MetadataBuffer.

type FfiType = RustBuffer

The low-level type used for passing values of this type over the FFI.

fn lower(v: Self) -> RustBuffer

Lower a rust value of the target type, into an FFI value of type Self::FfiType.

fn try_lift(buf: RustBuffer) -> Result<Self>

Lift a rust value of the target type, from an FFI value of type Self::FfiType.

fn write(obj: Self, buf: &mut Vec<u8>)

Write a rust value into a buffer, to send over the FFI in serialized form.

fn try_read(buf: &mut &[u8]) -> Result<Self>

Read a rust value from a buffer, received over the FFI in serialized form.

impl<UT> Lift<UT> for MediaView

type FfiType = <MediaView as FfiConverter<UT>>::FfiType

fn try_lift(v: Self::FfiType) -> Result<Self>

fn try_read(buf: &mut &[u8]) -> Result<Self>

fn try_lift_from_rust_buffer(v: RustBuffer) -> Result<Self, Error>

Convenience method

impl<UT> LiftRef<UT> for MediaView

type LiftType = MediaView

impl<UT> LiftReturn<UT> for MediaView

type ReturnType = <MediaView as Lift<UT>>::FfiType

FFI return type for trait interfaces

fn try_lift_successful_return(v: Self::ReturnType) -> Result<Self>

Lift a successfully returned value from a trait interface

fn lift_foreign_return( ffi_return: Self::ReturnType, call_status: RustCallStatus, ) -> Self

Lift a foreign returned value from a trait interface

fn lift_error(_buf: RustBuffer) -> Self

Lift a Rust value for a callback interface method error result

fn handle_callback_unexpected_error(e: UnexpectedUniFFICallbackError) -> Self

Lift a Rust value for an unexpected callback interface error

impl<UT> Lower<UT> for MediaView

type FfiType = <MediaView as FfiConverter<UT>>::FfiType

fn lower(obj: Self) -> Self::FfiType

fn write(obj: Self, buf: &mut Vec<u8>)

fn lower_into_rust_buffer(obj: Self) -> RustBuffer

Convenience method

impl<UT> LowerError<UT> for MediaView

fn lower_error(obj: Self) -> RustBuffer

Lower this value for scaffolding function return

impl<UT> LowerReturn<UT> for MediaView

type ReturnType = <MediaView as Lower<UT>>::FfiType

The type that should be returned by scaffolding functions for this type.

fn lower_return(v: Self) -> Result<Self::ReturnType, RustCallError>

Lower the return value from an scaffolding call

fn handle_failed_lift( error: LiftArgsError, ) -> Result<Self::ReturnType, RustCallError>

Lower the return value for failed argument lifts

impl<UT> TypeId<UT> for MediaView

const TYPE_ID_META: MetadataBuffer