The Tor Browser / file revision

 /* -*- 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/. */

 #include "nsISupports.idl"

 /**

  * This interface remains only for the constants, for a context, use the

  * WebIDL/Paris bindings instead (CanvasRenderingContext2D.webidl).

  * The constants are used by CanvasRenderingContext2D::DrawWindow and are

  * used in WindowsPreviewPerTab.jsm and some extensions. The constants can

  * be referenced directly via a canvas context 2d rather than this interface,

  * and that should be preferred in new code. 

  */

 [scriptable, uuid(4417cab7-c7eb-4e0c-b00a-c43842f0cba8)]

 interface nsIDOMCanvasRenderingContext2D : nsISupports

 {

   // Show the caret if appropriate when drawing

   const unsigned long DRAWWINDOW_DRAW_CARET   = 0x01;

   // Don't flush pending layout notifications that could otherwise

   // be batched up

   const unsigned long DRAWWINDOW_DO_NOT_FLUSH = 0x02;

   // Draw scrollbars and scroll the viewport if they are present

   const unsigned long DRAWWINDOW_DRAW_VIEW    = 0x04;

   // Use the widget layer manager if available. This means hardware

   // acceleration may be used, but it might actually be slower or

   // lower quality than normal. It will however more accurately reflect

   // the pixels rendered to the screen.

   const unsigned long DRAWWINDOW_USE_WIDGET_LAYERS = 0x08;

   // Don't synchronously decode images - draw what we have

   const unsigned long DRAWWINDOW_ASYNC_DECODE_IMAGES = 0x10;

 };