1/*
2 * Copyright (C) 2013 Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 *     * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 *     * Neither the name of Google Inc. nor the names of its
11 * contributors may be used to endorse or promote products derived from
12 * this software without specific prior written permission.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
15 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
16 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
17 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
18 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
19 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
20 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#ifndef StyleSheetCandidate_h
28#define StyleSheetCandidate_h
29
30#include "platform/heap/Handle.h"
31#include "wtf/text/AtomicString.h"
32#include "wtf/text/WTFString.h"
33
34namespace blink {
35
36class Document;
37class Node;
38class StyleSheet;
39
40class StyleSheetCandidate {
41    STACK_ALLOCATED();
42public:
43    enum Type {
44        HTMLLink,
45        HTMLStyle,
46        SVGStyle,
47        Pi
48    };
49
50    StyleSheetCandidate(Node& node)
51        : m_node(node)
52        , m_type(typeOf(node))
53    { }
54
55    bool isXSL() const;
56    bool isImport() const;
57    bool isAlternate() const;
58    bool isEnabledViaScript() const;
59    bool isEnabledAndLoading() const;
60    bool hasPreferrableName(const String& currentPreferrableName) const;
61    bool canBeActivated(const String& currentPreferrableName) const;
62
63    StyleSheet* sheet() const;
64    AtomicString title() const;
65    Document* importedDocument() const;
66
67private:
68    bool isElement() const { return m_type != Pi; }
69    bool isHTMLLink() const { return m_type == HTMLLink; }
70    Node& node() const { return *m_node; }
71
72    static Type typeOf(Node&);
73
74    RawPtrWillBeMember<Node> m_node;
75    Type m_type;
76};
77
78}
79
80#endif
81
82