1/*
2 * (C) 1999-2003 Lars Knoll (knoll@kde.org)
3 * (C) 2002-2003 Dirk Mueller (mueller@kde.org)
4 * Copyright (C) 2002, 2006, 2008 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
22#ifndef CSSImportRule_h
23#define CSSImportRule_h
24
25#include "CSSRule.h"
26#include "CachedResourceClient.h"
27#include "CachedResourceHandle.h"
28#include "MediaList.h"
29#include "PlatformString.h"
30
31namespace WebCore {
32
33class CachedCSSStyleSheet;
34class MediaList;
35
36class CSSImportRule : public CSSRule, private CachedResourceClient {
37    WTF_MAKE_FAST_ALLOCATED;
38public:
39    static PassRefPtr<CSSImportRule> create(CSSStyleSheet* parent, const String& href, PassRefPtr<MediaList> media)
40    {
41        return adoptRef(new CSSImportRule(parent, href, media));
42    }
43
44    virtual ~CSSImportRule();
45
46    String href() const { return m_strHref; }
47    MediaList* media() const { return m_lstMedia.get(); }
48    CSSStyleSheet* styleSheet() const { return m_styleSheet.get(); }
49
50    virtual String cssText() const;
51
52    // Not part of the CSSOM
53    bool isLoading() const;
54
55    virtual void addSubresourceStyleURLs(ListHashSet<KURL>& urls);
56
57private:
58    CSSImportRule(CSSStyleSheet* parent, const String& href, PassRefPtr<MediaList>);
59
60    virtual bool isImportRule() { return true; }
61    virtual void insertedIntoParent();
62
63    // from CSSRule
64    virtual unsigned short type() const { return IMPORT_RULE; }
65
66    // from CachedResourceClient
67    virtual void setCSSStyleSheet(const String& href, const KURL& baseURL, const String& charset, const CachedCSSStyleSheet*);
68
69    String m_strHref;
70    RefPtr<MediaList> m_lstMedia;
71    RefPtr<CSSStyleSheet> m_styleSheet;
72    CachedResourceHandle<CachedCSSStyleSheet> m_cachedSheet;
73    bool m_loading;
74};
75
76} // namespace WebCore
77
78#endif // CSSImportRule_h
79