michael@0: /* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
michael@0:  *
michael@0:  * The origin of this IDL file is
michael@0:  * http://www.whatwg.org/specs/web-apps/current-work/#the-canvas-element
michael@0:  * © Copyright 2004-2011 Apple Computer, Inc., Mozilla Foundation, and
michael@0:  * Opera Software ASA. You are granted a license to use, reproduce
michael@0:  * and create derivative works of this document.
michael@0:  */
michael@0: 
michael@0: interface Blob;
michael@0: interface nsIInputStreamCallback;
michael@0: interface nsISupports;
michael@0: interface Variant;
michael@0: 
michael@0: interface HTMLCanvasElement : HTMLElement {
michael@0:   [Pure, SetterThrows]
michael@0:            attribute unsigned long width;
michael@0:   [Pure, SetterThrows]
michael@0:            attribute unsigned long height;
michael@0: 
michael@0:   [Throws]
michael@0:   nsISupports? getContext(DOMString contextId, optional any contextOptions = null);
michael@0: 
michael@0:   [Throws]
michael@0:   DOMString toDataURL(optional DOMString type = "",
michael@0:                       optional any encoderOptions);
michael@0:   [Throws]
michael@0:   void toBlob(FileCallback _callback,
michael@0:               optional DOMString type = "",
michael@0:               optional any encoderOptions);
michael@0: };
michael@0: 
michael@0: // Mozilla specific bits
michael@0: partial interface HTMLCanvasElement {
michael@0:   [Pure, SetterThrows]
michael@0:            attribute boolean mozOpaque;
michael@0:   [Throws]
michael@0:   File mozGetAsFile(DOMString name, optional DOMString? type = null);
michael@0:   [ChromeOnly, Throws]
michael@0:   nsISupports? MozGetIPCContext(DOMString contextId);
michael@0:   [ChromeOnly]
michael@0:   void mozFetchAsStream(nsIInputStreamCallback callback, optional DOMString? type = null);
michael@0:            attribute PrintCallback? mozPrintCallback;
michael@0: };
michael@0: 
michael@0: [ChromeOnly]
michael@0: interface MozCanvasPrintState
michael@0: {
michael@0:   // A canvas rendering context.
michael@0:   readonly attribute nsISupports context;
michael@0: 
michael@0:   // To be called when rendering to the context is done.
michael@0:   void done();
michael@0: };
michael@0: 
michael@0: callback PrintCallback = void(MozCanvasPrintState ctx);
michael@0: 
michael@0: callback FileCallback = void(Blob file);