1/*
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.
6
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.
11
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.
16
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.
21*/
22
23#ifndef CachedImageClient_h
24#define CachedImageClient_h
25
26#include "CachedResourceClient.h"
27
28namespace WebCore {
29
30class CachedImage;
31class IntRect;
32
33class CachedImageClient : public CachedResourceClient {
34public:
35    virtual ~CachedImageClient() { }
36    static CachedResourceClientType expectedType() { return ImageType; }
37    virtual CachedResourceClientType resourceClientType() const override { return expectedType(); }
38
39    // Called whenever a frame of an image changes because we got more data from the network.
40    // If not null, the IntRect is the changed rect of the image.
41    virtual void imageChanged(CachedImage*, const IntRect* = 0) { }
42
43    // Called when GIF animation progresses.
44    virtual void newImageAnimationFrameAvailable(CachedImage& image) { imageChanged(&image); }
45};
46
47}
48
49#endif
50