Struct layout_2013::context::LayoutContext

pub struct LayoutContext<'a> {
    pub id: PipelineId,
    pub origin: ImmutableOrigin,
    pub style_context: SharedStyleContext<'a>,
    pub image_cache: Arc<dyn ImageCache>,
    pub font_context: Arc<FontContext>,
    pub webrender_image_cache: Arc<RwLock<HashMap<(ServoUrl, UsePlaceholder), WebRenderImageInfo, BuildHasherDefault<FnvHasher>>>>,
    pub registered_painters: &'a dyn RegisteredPainters,
    pub pending_images: Mutex<Vec<PendingImage>>,
}

Layout information shared among all workers. This must be thread-safe.

Fields

id: PipelineId

The pipeline id of this LayoutContext.

origin: ImmutableOrigin

The origin of this layout context.

style_context: SharedStyleContext<'a>

Bits shared by the layout and style system.

image_cache: Arc<dyn ImageCache>

Reference to the script thread image cache.

font_context: Arc<FontContext>

A FontContext to be used during layout.

webrender_image_cache: Arc<RwLock<HashMap<(ServoUrl, UsePlaceholder), WebRenderImageInfo, BuildHasherDefault<FnvHasher>>>>

A cache of WebRender image info.

registered_painters: &'a dyn RegisteredPainters

Paint worklets

pending_images: Mutex<Vec<PendingImage>>

A list of in-progress image loads to be shared with the script thread.

Implementations

impl<'a> LayoutContext<'a>

pub fn shared_context(&self) -> &SharedStyleContext<'_>

pub fn get_or_request_image_or_meta( &self, node: OpaqueNode, url: ServoUrl, use_placeholder: UsePlaceholder, ) -> Option<ImageOrMetadataAvailable>

pub fn get_webrender_image_for_url( &self, node: OpaqueNode, url: ServoUrl, use_placeholder: UsePlaceholder, ) -> Option<WebRenderImageInfo>

Trait Implementations

impl<'a> Drop for LayoutContext<'a>

fn drop(&mut self)

Executes the destructor for this type.