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/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 http://mozilla.org/MPL/2.0/.
*
* The origin of this IDL file is
* http://www.whatwg.org/specs/web-apps/current-work/#the-canvas-element
* © Copyright 2004-2011 Apple Computer, Inc., Mozilla Foundation, and
* Opera Software ASA. You are granted a license to use, reproduce
* and create derivative works of this document.
*/
/* TODO
interface nsISupports;
interface Variant;
*/
[HTMLConstructor]
interface HTMLCanvasElement : HTMLElement {
[CEReactions, Pure, SetterThrows]
attribute unsigned long width;
[CEReactions, Pure, SetterThrows]
attribute unsigned long height;
[Throws]
nsISupports? getContext(DOMString contextId, optional any contextOptions = null);
[Throws, NeedsSubjectPrincipal]
DOMString toDataURL(optional DOMString type = "",
optional any encoderOptions);
[Throws, NeedsSubjectPrincipal]
undefined toBlob(BlobCallback _callback,
optional DOMString type = "",
optional any encoderOptions);
};
// For OffscreenCanvas
// Reference: https://wiki.whatwg.org/wiki/OffscreenCanvas
partial interface HTMLCanvasElement {
[Throws]
OffscreenCanvas transferControlToOffscreen();
};
// For MediaStream
// Reference: https://w3c.github.io/mediacapture-main/getusermedia.html#idl-def-mediastream
partial interface HTMLCanvasElement {
[Throws]
MediaStream captureStream (optional double frameRequestRate);
};
callback BlobCallback = undefined(Blob? blob);
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