gecko/dom/interfaces/html/nsIDOMHTMLCanvasElement.idl

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/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is
* Vladimir Vukicevic <vladimir@pobox.com>
* Portions created by the Initial Developer are Copyright (C) 2005
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsIDOMHTMLElement.idl"
/**
* The nsIDOMHTMLCanvasElement interface is the interface to a HTML
* <canvas> element.
*
* For more information on this interface, please see
* http://www.whatwg.org/specs/web-apps/current-work/#graphics
*
* @status UNDER_DEVELOPMENT
*/
[scriptable, uuid(d87394af-d31a-484e-8b7c-75381045384d)]
interface nsIDOMHTMLCanvasElement : nsIDOMHTMLElement
{
attribute long width;
attribute long height;
attribute boolean mozOpaque;
nsISupports getContext(in DOMString contextId);
// This version will query the JS context for its arguments; C++
// callers should use toDataURLAs.
//
// Valid calls are:
// toDataURL(); -- defaults to image/png
// toDataURL(type); -- uses given type
// toDataURL(type, params); -- only available to trusted callers
DOMString toDataURL();
// This version lets you specify different image types and pass parameters
// to the encoder. For example toDataURLAs("image/png", "transparency=none")
// gives you a PNG with the alpha channel discarded. See the encoder for
// the options string that it supports. Separate multiple options with
// semicolons.
[noscript] DOMString toDataURLAs(in DOMString mimeType, in DOMString encoderOptions);
};