2 Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
3 Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
4 Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
5 Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
7 This library is free software; you can redistribute it and/or
8 modify it under the terms of the GNU Library General Public
9 License as published by the Free Software Foundation; either
10 version 2 of the License, or (at your option) any later version.
12 This library is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Library General Public License for more details.
17 You should have received a copy of the GNU Library General Public License
18 along with this library; see the file COPYING.LIB. If not, write to
19 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
20 Boston, MA 02110-1301, USA.
23 #ifndef ImageResourceClient_h
24 #define ImageResourceClient_h
26 #include "core/fetch/ResourceClient.h"
33 class ImageResourceClient : public ResourceClient {
35 virtual ~ImageResourceClient() { }
36 static ResourceClientType expectedType() { return ImageType; }
37 virtual ResourceClientType resourceClientType() const override final { return expectedType(); }
39 // Called whenever a frame of an image changes, either because we got more data from the network or
40 // because we are animating. If not null, the IntRect is the changed rect of the image.
41 virtual void imageChanged(ImageResource*, const IntRect* = 0) { }
43 // Called to find out if this client wants to actually display the image. Used to tell when we
44 // can halt animation. Content nodes that hold image refs for example would not render the image,
45 // but RenderImages would (assuming they have visibility: visible and their render tree isn't hidden
46 // e.g., in the b/f cache or in a background tab).
47 virtual bool willRenderImage(ImageResource*) { return false; }