1 /*
2     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
3     Copyright (C) 2001 Dirk Mueller <mueller@kde.org>
4     Copyright (C) 2004, 2005, 2006, 2007 Apple Inc. All rights reserved.
5 
6     This library is free software; you can redistribute it and/or
7     modify it under the terms of the GNU Library General Public
8     License as published by the Free Software Foundation; either
9     version 2 of the License, or (at your option) any later version.
10 
11     This library is distributed in the hope that it will be useful,
12     but WITHOUT ANY WARRANTY; without even the implied warranty of
13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14     Library General Public License for more details.
15 
16     You should have received a copy of the GNU Library General Public License
17     along with this library; see the file COPYING.LIB.  If not, write to
18     the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
19     Boston, MA 02110-1301, USA.
20 
21     This class provides all functionality needed for loading images, style sheets and html
22     pages from the web. It has a memory cache for these objects.
23 */
24 
25 #ifndef CachedResourceClientWalker_h
26 #define CachedResourceClientWalker_h
27 
28 #include <wtf/HashCountedSet.h>
29 #include <wtf/Vector.h>
30 
31 namespace WebCore {
32 
33     class CachedResourceClient;
34 
35     // Call this "walker" instead of iterator so people won't expect Qt or STL-style iterator interface.
36     // Just keep calling next() on this. It's safe from deletions of items.
37     class CachedResourceClientWalker {
38     public:
39         CachedResourceClientWalker(const HashCountedSet<CachedResourceClient*>&);
40         CachedResourceClient* next();
41     private:
42         const HashCountedSet<CachedResourceClient*>& m_clientSet;
43         Vector<CachedResourceClient*> m_clientVector;
44         size_t m_index;
45     };
46 
47 }
48 
49 #endif
50