Enum OffscreenRenderingContext

pub(crate) enum OffscreenRenderingContext {
    Context2d(Dom<OffscreenCanvasRenderingContext2D>),
    BitmapRenderer(Dom<ImageBitmapRenderingContext>),
    Detached,
}

Non rooted variant of crate::dom::bindings::codegen::Bindings::OffscreenCanvasBinding::OffscreenRenderingContext

Variants

Context2d(Dom<OffscreenCanvasRenderingContext2D>)

BitmapRenderer(Dom<ImageBitmapRenderingContext>)

Detached

Trait Implementations

impl CanvasContext for OffscreenRenderingContext

type ID = ()

fn context_id(&self) -> Self::ID

fn canvas(&self) -> Option<HTMLCanvasElementOrOffscreenCanvas<DomTypeHolder>>

fn resize(&self)

fn reset_bitmap(&self)

fn get_image_data(&self) -> Option<Snapshot>

Returns none if area of canvas is zero.

fn origin_is_clean(&self) -> bool

fn size(&self) -> Size2D<u32>

fn mark_as_dirty(&self)

fn image_key(&self) -> Option<ImageKey>

The WebRender ImageKey of this CanvasContext if any.

fn update_rendering(&self, canvas_epoch: Epoch) -> bool

Request that the CanvasContext update the rendering of its contents, returning true if new image was produced.

fn onscreen(&self) -> bool

impl Clone for OffscreenRenderingContext

fn clone(&self) -> OffscreenRenderingContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl MallocSizeOf for OffscreenRenderingContext

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 OffscreenRenderingContext

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

Trace self.