pub trait OffscreenCanvasMethods<D>where
D: DomTypes,{
// Required methods
fn Width(&self) -> u64;
fn SetWidth(&self, value: u64, _can_gc: CanGc);
fn Height(&self) -> u64;
fn SetHeight(&self, value: u64, _can_gc: CanGc);
fn GetContext(
&self,
cx: JSContext,
contextId: DOMString,
options: Handle<'_, Value>,
_can_gc: CanGc,
) -> Result<Option<OffscreenCanvasRenderingContext2DOrImageBitmapRenderingContextOrWebGLRenderingContextOrWebGL2RenderingContext<D>>, Error>;
fn TransferToImageBitmap(
&self,
_can_gc: CanGc,
) -> Result<Root<Dom<<D as DomTypes>::ImageBitmap>>, Error>;
fn ConvertToBlob(
&self,
options: &ImageEncodeOptions,
_can_gc: CanGc,
) -> Rc<<D as DomTypes>::Promise>;
fn Constructor(
global: &<D as DomTypes>::GlobalScope,
proto: Option<Handle<'_, *mut JSObject>>,
can_gc: CanGc,
width: u64,
height: u64,
) -> Result<Root<Dom<<D as DomTypes>::OffscreenCanvas>>, Error>;
}Required Methods§
fn Width(&self) -> u64
fn SetWidth(&self, value: u64, _can_gc: CanGc)
fn Height(&self) -> u64
fn SetHeight(&self, value: u64, _can_gc: CanGc)
fn GetContext( &self, cx: JSContext, contextId: DOMString, options: Handle<'_, Value>, _can_gc: CanGc, ) -> Result<Option<OffscreenCanvasRenderingContext2DOrImageBitmapRenderingContextOrWebGLRenderingContextOrWebGL2RenderingContext<D>>, Error>
fn TransferToImageBitmap( &self, _can_gc: CanGc, ) -> Result<Root<Dom<<D as DomTypes>::ImageBitmap>>, Error>
fn ConvertToBlob( &self, options: &ImageEncodeOptions, _can_gc: CanGc, ) -> Rc<<D as DomTypes>::Promise>
fn Constructor( global: &<D as DomTypes>::GlobalScope, proto: Option<Handle<'_, *mut JSObject>>, can_gc: CanGc, width: u64, height: u64, ) -> Result<Root<Dom<<D as DomTypes>::OffscreenCanvas>>, Error>
Dyn Compatibility§
This trait is not dyn compatible.
In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.