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/*
* (C) 1999-2003 Lars Knoll (knoll@kde.org)
* Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef CSSValueList_h
#define CSSValueList_h
#include "CSSValue.h"
#include <wtf/PassRefPtr.h>
#include <wtf/Vector.h>
namespace WebCore {
class CSSParserValueList;
class CSSValueList : public CSSValue {
public:
static PassRef<CSSValueList> createCommaSeparated()
{
return adoptRef(*new CSSValueList(CommaSeparator));
}
static PassRef<CSSValueList> createSpaceSeparated()
{
return adoptRef(*new CSSValueList(SpaceSeparator));
}
static PassRef<CSSValueList> createSlashSeparated()
{
return adoptRef(*new CSSValueList(SlashSeparator));
}
static PassRef<CSSValueList> createFromParserValueList(CSSParserValueList& list)
{
return adoptRef(*new CSSValueList(list));
}
size_t length() const { return m_values.size(); }
CSSValue* item(size_t index) { return index < m_values.size() ? &m_values[index].get() : nullptr; }
const CSSValue* item(size_t index) const { return index < m_values.size() ? &m_values[index].get() : nullptr; }
CSSValue* itemWithoutBoundsCheck(size_t index) { return &m_values[index].get(); }
const CSSValue* itemWithoutBoundsCheck(size_t index) const { ASSERT(index < m_values.size()); return &m_values[index].get(); }
void append(PassRef<CSSValue>);
void prepend(PassRef<CSSValue>);
bool removeAll(CSSValue*);
bool hasValue(CSSValue*) const;
PassRefPtr<CSSValueList> copy();
String customCSSText() const;
bool equals(const CSSValueList&) const;
bool equals(const CSSValue&) const;
void addSubresourceStyleURLs(ListHashSet<URL>&, const StyleSheetContents*) const;
bool hasFailedOrCanceledSubresources() const;
PassRefPtr<CSSValueList> cloneForCSSOM() const;
protected:
CSSValueList(ClassType, ValueListSeparator);
CSSValueList(const CSSValueList& cloneFrom);
private:
explicit CSSValueList(ValueListSeparator);
explicit CSSValueList(CSSParserValueList&);
Vector<Ref<CSSValue>, 4> m_values;
};
CSS_VALUE_TYPE_CASTS(CSSValueList, isValueList())
inline void CSSValueList::append(PassRef<CSSValue> value)
{
m_values.append(WTF::move(value));
}
inline void CSSValueList::prepend(PassRef<CSSValue> value)
{
m_values.insert(0, WTF::move(value));
}
// Objects of this class are intended to be stack-allocated and scoped to a single function.
// Please take care not to pass these around as they do hold onto a raw pointer.
class CSSValueListInspector {
public:
CSSValueListInspector(CSSValue* value) : m_list((value && value->isValueList()) ? toCSSValueList(value) : 0) { }
CSSValue* item(size_t index) const { ASSERT_WITH_SECURITY_IMPLICATION(index < length()); return m_list->itemWithoutBoundsCheck(index); }
CSSValue* first() const { return item(0); }
CSSValue* second() const { return item(1); }
size_t length() const { return m_list ? m_list->length() : 0; }
private:
CSSValueList* m_list;
};
// Wrapper that can be used to iterate over any CSSValue. Non-list values and 0 behave as zero-length lists.
// Objects of this class are intended to be stack-allocated and scoped to a single function.
// Please take care not to pass these around as they do hold onto a raw pointer.
class CSSValueListIterator {
public:
CSSValueListIterator(CSSValue* value) : m_inspector(value), m_position(0) { }
bool hasMore() const { return m_position < m_inspector.length(); }
CSSValue* value() const { return m_inspector.item(m_position); }
bool isPrimitiveValue() const { return value()->isPrimitiveValue(); }
void advance() { m_position++; ASSERT(m_position <= m_inspector.length());}
size_t index() const { return m_position; }
private:
CSSValueListInspector m_inspector;
size_t m_position;
};
} // namespace WebCore
#endif // CSSValueList_h
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