1/*
2 * Copyright (C) 2010 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
6 * are met:
7 * 1.  Redistributions of source code must retain the above copyright
8 *     notice, this list of conditions and the following disclaimer.
9 * 2.  Redistributions in binary form must reproduce the above copyright
10 *     notice, this list of conditions and the following disclaimer in the
11 *     documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
15 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
16 * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
17 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
18 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
19 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
20 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
22 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23 */
24
25#ifndef ClassList_h
26#define ClassList_h
27
28#include "core/HTMLNames.h"
29#include "core/dom/DOMTokenList.h"
30#include "core/dom/Element.h"
31#include "core/dom/SpaceSplitString.h"
32#include "wtf/OwnPtr.h"
33#include "wtf/PassOwnPtr.h"
34
35namespace blink {
36
37class Element;
38
39typedef int ExceptionCode;
40
41class ClassList FINAL : public DOMTokenList {
42public:
43    static PassOwnPtrWillBeRawPtr<ClassList> create(Element* element)
44    {
45        return adoptPtrWillBeNoop(new ClassList(element));
46    }
47
48#if !ENABLE(OILPAN)
49    virtual void ref() OVERRIDE;
50    virtual void deref() OVERRIDE;
51#endif
52
53    virtual unsigned length() const OVERRIDE;
54    virtual const AtomicString item(unsigned index) const OVERRIDE;
55
56    virtual Element* element() OVERRIDE { return m_element; }
57
58    void clearValueForQuirksMode() { m_classNamesForQuirksMode = nullptr; }
59
60    virtual void trace(Visitor*) OVERRIDE;
61
62private:
63    explicit ClassList(Element*);
64
65    virtual bool containsInternal(const AtomicString&) const OVERRIDE;
66
67    const SpaceSplitString& classNames() const;
68
69    virtual const AtomicString& value() const OVERRIDE { return m_element->getAttribute(HTMLNames::classAttr); }
70    virtual void setValue(const AtomicString& value) OVERRIDE { m_element->setAttribute(HTMLNames::classAttr, value); }
71
72    RawPtrWillBeMember<Element> m_element;
73    mutable OwnPtr<SpaceSplitString> m_classNamesForQuirksMode;
74};
75
76} // namespace blink
77
78#endif // ClassList_h
79