/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
// https://html.spec.whatwg.org/multipage/#the-offscreencanvas-interface
typedef (OffscreenCanvasRenderingContext2D
or ImageBitmapRenderingContext
or WebGLRenderingContext
or WebGL2RenderingContext) OffscreenRenderingContext;
dictionary ImageEncodeOptions {
DOMString type = "image/png";
unrestricted double quality;
};
enum OffscreenRenderingContextId { "2d", "bitmaprenderer", "webgl", "webgl2", "experimental-webgl", "experimental-webgl2" };
[Exposed=(Window,Worker), Transferable, Pref="dom_offscreen_canvas_enabled"]
interface OffscreenCanvas : EventTarget {
[Throws] constructor([EnforceRange] unsigned long long width, [EnforceRange] unsigned long long height);
attribute [EnforceRange] unsigned long long width;
attribute [EnforceRange] unsigned long long height;
[Throws] OffscreenRenderingContext? getContext(OffscreenRenderingContextId contextId, optional any options = null);
[Throws] ImageBitmap transferToImageBitmap();
Promise<Blob> convertToBlob(optional ImageEncodeOptions options = {});
};