Struct ImageBitmapRenderingContext

#[repr(C)]
pub(crate) struct ImageBitmapRenderingContext {
    reflector_: Reflector,
    canvas: HTMLCanvasElementOrOffscreenCanvas,
    bitmap: DomRefCell<Option<Snapshot>>,
    origin_clean: Cell<bool>,
}

https://html.spec.whatwg.org/multipage/#imagebitmaprenderingcontext

Fields

reflector_: Reflector

canvas: HTMLCanvasElementOrOffscreenCanvas

https://html.spec.whatwg.org/multipage/#dom-imagebitmaprenderingcontext-canvas

bitmap: DomRefCell<Option<Snapshot>>

Represents both the [output bitmap] and the [bitmap mode] of the context. https://html.spec.whatwg.org/multipage/#concept-imagebitmaprenderingcontext-output-bitmap https://html.spec.whatwg.org/multipage/#concept-imagebitmaprenderingcontext-bitmap-mode

origin_clean: Cell<bool>

Implementations

impl ImageBitmapRenderingContext

fn __assert_parent_type(&self)

impl ImageBitmapRenderingContext

fn new_inherited( canvas: HTMLCanvasElementOrOffscreenCanvas, ) -> ImageBitmapRenderingContext

https://html.spec.whatwg.org/multipage/#imagebitmaprenderingcontext-creation-algorithm

pub(crate) fn new( global: &GlobalScope, canvas: &HTMLCanvasElementOrOffscreenCanvas<DomTypeHolder>, can_gc: CanGc, ) -> DomRoot<ImageBitmapRenderingContext>

fn set_bitmap(&self, image_bitmap: Option<&ImageBitmap>)

https://html.spec.whatwg.org/multipage/#set-an-imagebitmaprenderingcontext's-output-bitmap

Trait Implementations

impl CanvasContext for ImageBitmapRenderingContext

fn resize(&self)

https://html.spec.whatwg.org/multipage/#the-canvas-element:concept-canvas-bitmaprenderer

type ID = ()

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

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

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 image_key(&self) -> Option<ImageKey>

The WebRender ImageKey of this CanvasContext if any.

fn mark_as_dirty(&self)

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 DomObject for ImageBitmapRenderingContext

fn reflector(&self) -> &Reflector

Returns the receiver’s reflector.

impl DomObjectWrap<DomTypeHolder> for ImageBitmapRenderingContext

const WRAP: unsafe fn(SafeJSContext, &GlobalScope, Option<HandleObject<'_>>, Box<Self>, CanGc) -> Root<Dom<Self>> = {script_bindings::codegen::GenericBindings::ImageBitmapRenderingContextBinding::Wrap::<dom::bindings::codegen::DomTypeHolder::DomTypeHolder> as for<'a, 'b> unsafe fn(script_bindings::script_runtime::JSContext, &'a dom::globalscope::GlobalScope, std::option::Option<js::rust::Handle<'b, *mut js::jsapi::JSObject>>, std::boxed::Box<dom::canvas::imagebitmaprenderingcontext::ImageBitmapRenderingContext>, script_bindings::script_runtime::CanGc) -> script_bindings::root::Root<script_bindings::root::Dom<dom::canvas::imagebitmaprenderingcontext::ImageBitmapRenderingContext>>}

Function pointer to the general wrap function type

impl HasParent for ImageBitmapRenderingContext

fn as_parent(&self) -> &Reflector

This is used in a type assertion to ensure that the source and webidls agree as to what the parent type is

type Parent = Reflector

impl IDLInterface for ImageBitmapRenderingContext

fn derives(class: &'static DOMClass) -> bool

Returns whether the given DOM class derives that interface.

impl ImageBitmapRenderingContextMethods<DomTypeHolder> for ImageBitmapRenderingContext

fn Canvas(&self) -> HTMLCanvasElementOrOffscreenCanvas<DomTypeHolder>

https://html.spec.whatwg.org/multipage/#dom-imagebitmaprenderingcontext-canvas

fn TransferFromImageBitmap( &self, image_bitmap: Option<&ImageBitmap>, ) -> Fallible<()>

https://html.spec.whatwg.org/multipage/#dom-imagebitmaprenderingcontext-transferfromimagebitmap

impl MallocSizeOf for ImageBitmapRenderingContext

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 MutDomObject for ImageBitmapRenderingContext

unsafe fn init_reflector(&self, obj: *mut JSObject)

Initializes the Reflector

impl PartialEq for ImageBitmapRenderingContext

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl ToJSValConvertible for ImageBitmapRenderingContext

unsafe fn to_jsval(&self, cx: *mut JSContext, rval: MutableHandleValue<'_>)

Convert self to a JSVal. JSAPI failure causes a panic.

impl Traceable for ImageBitmapRenderingContext

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

Trace self.

impl Eq for ImageBitmapRenderingContext