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/*
* Copyright (C) 2013 Google, Inc. All Rights Reserved.
* Copyright (C) 2015 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. ``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
* 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 AtomicHTMLToken_h
#define AtomicHTMLToken_h
#include "HTMLToken.h"
namespace WebCore {
class AtomicHTMLToken {
public:
explicit AtomicHTMLToken(HTMLToken&);
AtomicHTMLToken(HTMLToken::Type, const AtomicString& name, Vector<Attribute>&& = Vector<Attribute>()); // Only StartTag or EndTag.
HTMLToken::Type type() const;
// StartTag, EndTag, DOCTYPE.
void setName(const AtomicString&);
const AtomicString& name() const;
// DOCTYPE.
bool forceQuirks() const;
String publicIdentifier() const;
String systemIdentifier() const;
// StartTag, EndTag.
Vector<Attribute>& attributes();
bool selfClosing() const;
const Vector<Attribute>& attributes() const;
// Characters
const UChar* characters() const;
unsigned charactersLength() const;
bool charactersIsAll8BitData() const;
// Comment
const String& comment() const;
private:
HTMLToken::Type m_type;
void initializeAttributes(const HTMLToken::AttributeList& attributes);
AtomicString m_name; // StartTag, EndTag, DOCTYPE.
String m_data; // Comment
// We don't want to copy the the characters out of the HTMLToken, so we keep a pointer to its buffer instead.
// This buffer is owned by the HTMLToken and causes a lifetime dependence between these objects.
// FIXME: Add a mechanism for "internalizing" the characters when the HTMLToken is destroyed.
const UChar* m_externalCharacters; // Character
unsigned m_externalCharactersLength; // Character
bool m_externalCharactersIsAll8BitData; // Character
std::unique_ptr<DoctypeData> m_doctypeData; // DOCTYPE.
bool m_selfClosing; // StartTag, EndTag.
Vector<Attribute> m_attributes; // StartTag, EndTag.
};
Attribute* findAttribute(Vector<Attribute>&, const QualifiedName&);
inline HTMLToken::Type AtomicHTMLToken::type() const
{
return m_type;
}
inline const AtomicString& AtomicHTMLToken::name() const
{
ASSERT(m_type == HTMLToken::StartTag || m_type == HTMLToken::EndTag || m_type == HTMLToken::DOCTYPE);
return m_name;
}
inline void AtomicHTMLToken::setName(const AtomicString& name)
{
ASSERT(m_type == HTMLToken::StartTag || m_type == HTMLToken::EndTag || m_type == HTMLToken::DOCTYPE);
m_name = name;
}
inline bool AtomicHTMLToken::selfClosing() const
{
ASSERT(m_type == HTMLToken::StartTag || m_type == HTMLToken::EndTag);
return m_selfClosing;
}
inline Vector<Attribute>& AtomicHTMLToken::attributes()
{
ASSERT(m_type == HTMLToken::StartTag || m_type == HTMLToken::EndTag);
return m_attributes;
}
inline const Vector<Attribute>& AtomicHTMLToken::attributes() const
{
ASSERT(m_type == HTMLToken::StartTag || m_type == HTMLToken::EndTag);
return m_attributes;
}
inline const UChar* AtomicHTMLToken::characters() const
{
ASSERT(m_type == HTMLToken::Character);
return m_externalCharacters;
}
inline unsigned AtomicHTMLToken::charactersLength() const
{
ASSERT(m_type == HTMLToken::Character);
return m_externalCharactersLength;
}
inline bool AtomicHTMLToken::charactersIsAll8BitData() const
{
return m_externalCharactersIsAll8BitData;
}
inline const String& AtomicHTMLToken::comment() const
{
ASSERT(m_type == HTMLToken::Comment);
return m_data;
}
inline bool AtomicHTMLToken::forceQuirks() const
{
ASSERT(m_type == HTMLToken::DOCTYPE);
return m_doctypeData->forceQuirks;
}
inline String AtomicHTMLToken::publicIdentifier() const
{
ASSERT(m_type == HTMLToken::DOCTYPE);
if (!m_doctypeData->hasPublicIdentifier)
return String();
return StringImpl::create8BitIfPossible(m_doctypeData->publicIdentifier);
}
inline String AtomicHTMLToken::systemIdentifier() const
{
if (!m_doctypeData->hasSystemIdentifier)
return String();
return StringImpl::create8BitIfPossible(m_doctypeData->systemIdentifier);
}
inline Attribute* findAttribute(Vector<Attribute>& attributes, const QualifiedName& name)
{
for (auto& attribute : attributes) {
if (attribute.name().matches(name))
return &attribute;
}
return nullptr;
}
inline void AtomicHTMLToken::initializeAttributes(const HTMLToken::AttributeList& attributes)
{
unsigned size = attributes.size();
if (!size)
return;
m_attributes.reserveInitialCapacity(size);
for (auto& attribute : attributes) {
if (attribute.name.isEmpty())
continue;
QualifiedName name(nullAtom, AtomicString(attribute.name), nullAtom);
// FIXME: This is N^2 for the number of attributes.
if (!findAttribute(m_attributes, name))
m_attributes.append(Attribute(name, AtomicString(attribute.value)));
}
}
inline AtomicHTMLToken::AtomicHTMLToken(HTMLToken& token)
: m_type(token.type())
{
switch (m_type) {
case HTMLToken::Uninitialized:
ASSERT_NOT_REACHED();
return;
case HTMLToken::DOCTYPE:
m_name = AtomicString(token.name());
m_doctypeData = token.releaseDoctypeData();
return;
case HTMLToken::EndOfFile:
return;
case HTMLToken::StartTag:
case HTMLToken::EndTag:
m_selfClosing = token.selfClosing();
m_name = AtomicString(token.name());
initializeAttributes(token.attributes());
return;
case HTMLToken::Comment:
if (token.commentIsAll8BitData())
m_data = String::make8BitFrom16BitSource(token.comment());
else
m_data = String(token.comment());
return;
case HTMLToken::Character:
m_externalCharacters = token.characters().data();
m_externalCharactersLength = token.characters().size();
m_externalCharactersIsAll8BitData = token.charactersIsAll8BitData();
return;
}
ASSERT_NOT_REACHED();
}
inline AtomicHTMLToken::AtomicHTMLToken(HTMLToken::Type type, const AtomicString& name, Vector<Attribute>&& attributes)
: m_type(type)
, m_name(name)
, m_selfClosing(false)
, m_attributes(WTFMove(attributes))
{
ASSERT(type == HTMLToken::StartTag || type == HTMLToken::EndTag);
}
}
#endif
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