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/. */ 5 6#include "nsISupports.idl" 7 8/** 9 * This interface remains only for the constants, for a context, use the 10 * WebIDL/Paris bindings instead (CanvasRenderingContext2D.webidl). 11 * The constants are used by CanvasRenderingContext2D::DrawWindow and are 12 * used in WindowsPreviewPerTab.jsm and some extensions. The constants can 13 * be referenced directly via a canvas context 2d rather than this interface, 14 * and that should be preferred in new code. 15 */ 16[uuid(4417cab7-c7eb-4e0c-b00a-c43842f0cba8)] 17interface nsIDOMCanvasRenderingContext2D : nsISupports 18{ 19 // Show the caret if appropriate when drawing 20 const unsigned long DRAWWINDOW_DRAW_CARET = 0x01; 21 // Don't flush pending layout notifications that could otherwise 22 // be batched up 23 const unsigned long DRAWWINDOW_DO_NOT_FLUSH = 0x02; 24 // Draw scrollbars and scroll the viewport if they are present 25 const unsigned long DRAWWINDOW_DRAW_VIEW = 0x04; 26 // Use the widget layer manager if available. This means hardware 27 // acceleration may be used, but it might actually be slower or 28 // lower quality than normal. It will however more accurately reflect 29 // the pixels rendered to the screen. 30 const unsigned long DRAWWINDOW_USE_WIDGET_LAYERS = 0x08; 31 // Don't synchronously decode images - draw what we have 32 const unsigned long DRAWWINDOW_ASYNC_DECODE_IMAGES = 0x10; 33}; 34