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/*
* Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
* Copyright (C) 2004, 2005, 2006, 2007, 2008 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.
*
*/
#include "config.h"
#include "ContentData.h"
#include "CounterContent.h"
#include "StyleImage.h"
#include <wtf/text/StringImpl.h>
namespace WebCore {
void ContentData::clear()
{
deleteContent();
ContentData* n = m_next;
m_next = 0;
// Reverse the list so we can delete without recursing.
ContentData* last = 0;
ContentData* c;
while ((c = n)) {
n = c->m_next;
c->m_next = last;
last = c;
}
for (c = last; c; c = n) {
n = c->m_next;
c->m_next = 0;
delete c;
}
}
bool ContentData::dataEquivalent(const ContentData& other) const
{
if (type() != other.type())
return false;
switch (type()) {
case CONTENT_NONE:
return true;
break;
case CONTENT_TEXT:
return equal(text(), other.text());
break;
case CONTENT_OBJECT:
return StyleImage::imagesEquivalent(image(), other.image());
break;
case CONTENT_COUNTER:
return *counter() == *other.counter();
break;
}
ASSERT_NOT_REACHED();
return false;
}
void ContentData::deleteContent()
{
switch (m_type) {
case CONTENT_NONE:
break;
case CONTENT_OBJECT:
m_content.m_image->deref();
break;
case CONTENT_TEXT:
m_content.m_text->deref();
break;
case CONTENT_COUNTER:
delete m_content.m_counter;
break;
}
m_type = CONTENT_NONE;
}
} // namespace WebCore
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