| /* -*- 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 { |
| [Pref="gfx.offscreencanvas.enabled", Throws] |
| OffscreenCanvas transferControlToOffscreen(); |
| }; |
| |
| callback BlobCallback = undefined(Blob? blob); |
