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/*
* Copyright (C) 2010 Google Inc. All rights reserved.
* Copyright (C) 2015, 2016 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef DOMTokenList_h
#define DOMTokenList_h
#include <wtf/Optional.h>
#include <wtf/Vector.h>
#include <wtf/text/AtomicString.h>
namespace WebCore {
class Element;
typedef int ExceptionCode;
class DOMTokenList {
WTF_MAKE_NONCOPYABLE(DOMTokenList); WTF_MAKE_FAST_ALLOCATED;
public:
virtual ~DOMTokenList() { }
virtual void ref() = 0;
virtual void deref() = 0;
unsigned length() const;
const AtomicString& item(unsigned index) const;
bool contains(const AtomicString&, ExceptionCode&) const;
void add(const Vector<String>&, ExceptionCode&);
void add(const AtomicString&, ExceptionCode&);
void remove(const Vector<String>&, ExceptionCode&);
void remove(const AtomicString&, ExceptionCode&);
bool toggle(const AtomicString&, Optional<bool> force, ExceptionCode&);
const AtomicString& toString() const { return value(); }
virtual Element* element() const { return nullptr; }
void setValue(const String&);
const AtomicString& value() const;
protected:
DOMTokenList() = default;
void setValueInternal(const String&);
virtual void updateAfterTokenChange() { m_cachedValue = nullAtom; }
private:
static bool validateToken(const String&, ExceptionCode&);
static bool validateTokens(const String* tokens, size_t length, ExceptionCode&);
void addInternal(const String* tokens, size_t length, ExceptionCode&);
void removeInternal(const String* tokens, size_t length, ExceptionCode&);
Vector<AtomicString> m_tokens;
mutable AtomicString m_cachedValue;
};
inline unsigned DOMTokenList::length() const
{
return m_tokens.size();
}
inline const AtomicString& DOMTokenList::item(unsigned index) const
{
return index < m_tokens.size() ? m_tokens[index] : nullAtom;
}
} // namespace WebCore
#endif // DOMTokenList_h
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