Struct MediaList 

pub struct MediaList {
    pub media_queries: Vec<MediaQuery>,
}

A type that encapsulates a media query list.

Fields

media_queries: Vec<MediaQuery>

The list of media queries.

Implementations

impl MediaList

pub fn parse(context: &ParserContext<'_>, input: &mut Parser<'_, '_>) -> Self

Parse a media query list from CSS.

Always returns a media query list. If any invalid media query is found, the media query list is only filled with the equivalent of “not all”, see:

https://drafts.csswg.org/mediaqueries/#error-handling

pub fn empty() -> Self

Create an empty MediaList.

pub fn evaluate( &self, device: &Device, quirks_mode: QuirksMode, custom: &mut CustomMediaEvaluator<'_>, ) -> bool

Evaluate a whole MediaList against Device.

pub fn matches( &self, context: &Context<'_>, custom: &mut CustomMediaEvaluator<'_>, ) -> KleeneValue

Evaluate the current MediaList with a pre-existing context and custom-media evaluator.

pub fn is_empty(&self) -> bool

Whether this MediaList contains no media queries.

pub fn is_viewport_dependent(&self) -> bool

Whether this MediaList depends on the viewport size.

pub fn append_medium( &mut self, context: &ParserContext<'_>, new_medium: &str, ) -> bool

Append a new media query item to the media list. https://drafts.csswg.org/cssom/#dom-medialist-appendmedium

Returns true if added, false if fail to parse the medium string.

pub fn delete_medium( &mut self, context: &ParserContext<'_>, old_medium: &str, ) -> bool

Delete a media query from the media list. https://drafts.csswg.org/cssom/#dom-medialist-deletemedium

Returns true if found and deleted, false otherwise.

Trait Implementations

impl Clone for MediaList

fn clone(&self) -> MediaList

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for MediaList

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

Formats the value using the given formatter.

impl MallocSizeOf for MediaList

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 ToCss for MediaList

fn to_css<W>(&self, dest: &mut CssWriter<'_, W>) -> Result

where W: Write,

Serialize self in CSS syntax, writing to dest.

fn to_css_string(&self) -> String

Serialize self in CSS syntax and return a string.

fn to_css_cssstring(&self) -> String

Serialize self in CSS syntax and return a CssString.

impl ToShmem for MediaList

fn to_shmem(&self, builder: &mut SharedMemoryBuilder) -> Result<Self>

Clones this value into a form suitable for writing into a SharedMemoryBuilder.