The Tor Browser: dom/interfaces/html/nsIDOMHTMLCanvasElement.idl@b8a032363ba2

Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6

     1 /* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 #include "nsIDOMHTMLElement.idl"

     8 /**

     9  * The nsIDOMHTMLCanvasElement interface is the interface to a HTML

    10  * <canvas> element.

    11  *

    12  * For more information on this interface, please see

    13  * http://www.whatwg.org/specs/web-apps/current-work/#graphics

    14  *

    15  * @status UNDER_DEVELOPMENT

    16  */

    18 interface nsIDOMBlob;

    19 interface nsIDOMFile;

    20 interface nsIVariant;

    21 interface nsIInputStreamCallback;

    23 [scriptable, uuid(8978d1c5-2981-4678-a1c3-b0b7bae04fbc)]

    24 interface nsIDOMHTMLCanvasElement : nsISupports

    25 {

    26   attribute unsigned long width;

    27   attribute unsigned long height;

    28   attribute boolean mozOpaque;

    30   // Valid calls are:

    31   //  toDataURL();              -- defaults to image/png

    32   //  toDataURL(type);          -- uses given type

    33   //  toDataURL(type, params);  -- uses given type, and any valid parameters

    34   [implicit_jscontext]

    35   DOMString toDataURL([optional] in DOMString type,

    36                       [optional] in jsval params);

    38   // Valid calls are

    39   // mozGetAsFile(name);              -- defaults to image/png

    40   // mozGetAsFile(name, type);        -- uses given type

    41   nsIDOMFile mozGetAsFile(in DOMString name, [optional] in DOMString type);

    43   // A Mozilla-only extension to get a canvas context backed by double-buffered

    44   // shared memory. Only privileged callers can call this.

    45   nsISupports MozGetIPCContext(in DOMString contextId);

    47   // A Mozilla-only extension that returns the canvas' image data as a data

    48   // stream in the desired image format.

    49   void mozFetchAsStream(in nsIInputStreamCallback callback,

    50                                         [optional] in DOMString type);

    51 };

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