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: #include "nsISupports.idl"
michael@0: 
michael@0: /**
michael@0:  * This interface remains only for the constants, for a context, use the
michael@0:  * WebIDL/Paris bindings instead (CanvasRenderingContext2D.webidl).
michael@0:  * The constants are used by CanvasRenderingContext2D::DrawWindow and are
michael@0:  * used in WindowsPreviewPerTab.jsm and some extensions. The constants can
michael@0:  * be referenced directly via a canvas context 2d rather than this interface,
michael@0:  * and that should be preferred in new code. 
michael@0:  */
michael@0: [scriptable, uuid(4417cab7-c7eb-4e0c-b00a-c43842f0cba8)]
michael@0: interface nsIDOMCanvasRenderingContext2D : nsISupports
michael@0: {
michael@0:   // Show the caret if appropriate when drawing
michael@0:   const unsigned long DRAWWINDOW_DRAW_CARET   = 0x01;
michael@0:   // Don't flush pending layout notifications that could otherwise
michael@0:   // be batched up
michael@0:   const unsigned long DRAWWINDOW_DO_NOT_FLUSH = 0x02;
michael@0:   // Draw scrollbars and scroll the viewport if they are present
michael@0:   const unsigned long DRAWWINDOW_DRAW_VIEW    = 0x04;
michael@0:   // Use the widget layer manager if available. This means hardware
michael@0:   // acceleration may be used, but it might actually be slower or
michael@0:   // lower quality than normal. It will however more accurately reflect
michael@0:   // the pixels rendered to the screen.
michael@0:   const unsigned long DRAWWINDOW_USE_WIDGET_LAYERS = 0x08;
michael@0:   // Don't synchronously decode images - draw what we have
michael@0:   const unsigned long DRAWWINDOW_ASYNC_DECODE_IMAGES = 0x10;
michael@0: };