CSSStyleSheet.h revision cad810f21b803229eb11403f9209855525a25d57 
1/*
2 * (C) 1999-2003 Lars Knoll (knoll@kde.org)
3 * Copyright (C) 2004, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13 * Library General Public License for more details.
14 *
15 * You should have received a copy of the GNU Library General Public License
16 * along with this library; see the file COPYING.LIB.  If not, write to
17 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
18 * Boston, MA 02110-1301, USA.
19 */
20
21#ifndef CSSStyleSheet_h
22#define CSSStyleSheet_h
23
24#include "CSSRuleList.h"
25#include "StyleSheet.h"
26
27namespace WebCore {
28
29struct CSSNamespace;
30class CSSParser;
31class CSSRule;
32class CachedResourceLoader;
33class Document;
34
35typedef int ExceptionCode;
36
37class CSSStyleSheet : public StyleSheet {
38public:
39    static PassRefPtr<CSSStyleSheet> create()
40    {
41        return adoptRef(new CSSStyleSheet(static_cast<CSSStyleSheet*>(0), String(), KURL(), String()));
42    }
43    static PassRefPtr<CSSStyleSheet> create(Node* ownerNode)
44    {
45        return adoptRef(new CSSStyleSheet(ownerNode, String(), KURL(), String()));
46    }
47    static PassRefPtr<CSSStyleSheet> create(Node* ownerNode, const String& originalURL, const KURL& finalURL)
48    {
49        return adoptRef(new CSSStyleSheet(ownerNode, originalURL, finalURL, String()));
50    }
51    static PassRefPtr<CSSStyleSheet> create(Node* ownerNode, const String& originalURL, const KURL& finalURL, const String& charset)
52    {
53        return adoptRef(new CSSStyleSheet(ownerNode, originalURL, finalURL, charset));
54    }
55    static PassRefPtr<CSSStyleSheet> create(CSSRule* ownerRule, const String& originalURL, const KURL& finalURL, const String& charset)
56    {
57        return adoptRef(new CSSStyleSheet(ownerRule, originalURL, finalURL, charset));
58    }
59    static PassRefPtr<CSSStyleSheet> createInline(Node* ownerNode, const KURL& finalURL)
60    {
61        return adoptRef(new CSSStyleSheet(ownerNode, finalURL.string(), finalURL, String()));
62    }
63
64    virtual ~CSSStyleSheet();
65
66    CSSRule* ownerRule() const;
67    PassRefPtr<CSSRuleList> cssRules(bool omitCharsetRules = false);
68    unsigned insertRule(const String& rule, unsigned index, ExceptionCode&);
69    void deleteRule(unsigned index, ExceptionCode&);
70
71    // IE Extensions
72    PassRefPtr<CSSRuleList> rules() { return cssRules(true); }
73    int addRule(const String& selector, const String& style, int index, ExceptionCode&);
74    int addRule(const String& selector, const String& style, ExceptionCode&);
75    void removeRule(unsigned index, ExceptionCode& ec) { deleteRule(index, ec); }
76
77    void addNamespace(CSSParser*, const AtomicString& prefix, const AtomicString& uri);
78    const AtomicString& determineNamespace(const AtomicString& prefix);
79
80    virtual void styleSheetChanged();
81
82    virtual bool parseString(const String&, bool strict = true);
83
84    bool parseStringAtLine(const String&, bool strict, int startLineNumber);
85
86    virtual bool isLoading();
87
88    virtual void checkLoaded();
89
90    Document* document() { return m_document; }
91
92    const String& charset() const { return m_charset; }
93
94    bool loadCompleted() const { return m_loadCompleted; }
95
96    virtual KURL completeURL(const String& url) const;
97    virtual void addSubresourceStyleURLs(ListHashSet<KURL>&);
98
99    void setStrictParsing(bool b) { m_strictParsing = b; }
100    bool useStrictParsing() const { return m_strictParsing; }
101
102    void setIsUserStyleSheet(bool b) { m_isUserStyleSheet = b; }
103    bool isUserStyleSheet() const { return m_isUserStyleSheet; }
104    void setHasSyntacticallyValidCSSHeader(bool b) { m_hasSyntacticallyValidCSSHeader = b; }
105    bool hasSyntacticallyValidCSSHeader() const { return m_hasSyntacticallyValidCSSHeader; }
106
107private:
108    CSSStyleSheet(Node* ownerNode, const String& originalURL, const KURL& finalURL, const String& charset);
109    CSSStyleSheet(CSSStyleSheet* parentSheet, const String& originalURL, const KURL& finalURL, const String& charset);
110    CSSStyleSheet(CSSRule* ownerRule, const String& originalURL, const KURL& finalURL, const String& charset);
111
112    virtual bool isCSSStyleSheet() const { return true; }
113    virtual String type() const { return "text/css"; }
114
115    Document* m_document;
116    OwnPtr<CSSNamespace> m_namespaces;
117    String m_charset;
118    bool m_loadCompleted : 1;
119    bool m_strictParsing : 1;
120    bool m_isUserStyleSheet : 1;
121    bool m_hasSyntacticallyValidCSSHeader : 1;
122};
123
124} // namespace
125
126#endif
127