Struct MediaSource 

pub struct MediaSource {
    pub media: String,
    pub srcset: String,
    pub mime: String,
}

One <source> under a <picture>, <video>, or <audio>: a candidate URL plus whichever of the two things HTML lets a <source> be chosen by — a media query (<picture>) or a MIME type (<video>/<audio>). Verbatim from the AST: core carries the alternatives and resolves none of them, having neither a theme nor a codec list to judge them by.

The two spellings are normalised onto one field. <picture> writes srcset, <video>/<audio> write src; both land in srcset, since a frontend wants the URL either way and only <picture> ever uses the descriptor syntax.

Fields

media: String

The <source media="…"> query, verbatim ("(prefers-color-scheme: dark)"), or empty for a <source> with no media (an unconditional override, and the norm for <video>/<audio>, which pick by codec rather than theme).

srcset: String

The candidate URL(s): a <picture>’s srcset verbatim — one URL, or a comma-separated candidate list with 1x/2x/width descriptors — or a <video>/<audio> <source>’s plain src. A frontend takes the first URL token; the theme and codec cases both only ever need that.

mime: String

The <source type="…"> MIME type ("video/webm"), verbatim, or empty when the <source> declares none. How a <video>/<audio> frontend picks a candidate it can actually decode; a <picture>’s sources normally leave it empty and are chosen by media.

Trait Implementations

impl Clone for MediaSource

fn clone(&self) -> MediaSource

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MediaSource

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

Formats the value using the given formatter.

impl Eq for MediaSource

impl PartialEq for MediaSource

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for MediaSource