pub trait OffscreenCanvasMethods<D>where
D: DomTypes,{
// Required methods
fn Width(&self) -> u64;
fn SetWidth(&self, cx: &mut JSContext, value: u64);
fn Height(&self) -> u64;
fn SetHeight(&self, cx: &mut JSContext, value: u64);
fn GetContext(
&self,
cx: &mut JSContext,
contextId: OffscreenRenderingContextId,
options: Handle<'_, Value>,
) -> Result<Option<OffscreenCanvasRenderingContext2DOrImageBitmapRenderingContextOrWebGLRenderingContextOrWebGL2RenderingContext<D>>, Error>;
fn TransferToImageBitmap(
&self,
cx: &mut JSContext,
) -> Result<Root<Dom<<D as DomTypes>::ImageBitmap>>, Error>;
fn ConvertToBlob(
&self,
cx: &mut JSContext,
options: &ImageEncodeOptions,
) -> Rc<<D as DomTypes>::Promise>;
fn Constructor(
cx: &mut JSContext,
global: &<D as DomTypes>::GlobalScope,
proto: Option<Handle<'_, *mut JSObject>>,
width: u64,
height: u64,
) -> Result<Root<Dom<<D as DomTypes>::OffscreenCanvas>>, Error>;
}Required Methods§
fn Width(&self) -> u64
fn SetWidth(&self, cx: &mut JSContext, value: u64)
fn Height(&self) -> u64
fn SetHeight(&self, cx: &mut JSContext, value: u64)
fn GetContext( &self, cx: &mut JSContext, contextId: OffscreenRenderingContextId, options: Handle<'_, Value>, ) -> Result<Option<OffscreenCanvasRenderingContext2DOrImageBitmapRenderingContextOrWebGLRenderingContextOrWebGL2RenderingContext<D>>, Error>
fn TransferToImageBitmap( &self, cx: &mut JSContext, ) -> Result<Root<Dom<<D as DomTypes>::ImageBitmap>>, Error>
fn ConvertToBlob( &self, cx: &mut JSContext, options: &ImageEncodeOptions, ) -> Rc<<D as DomTypes>::Promise>
fn Constructor( cx: &mut JSContext, global: &<D as DomTypes>::GlobalScope, proto: Option<Handle<'_, *mut JSObject>>, 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.