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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* Copyright (C) 2003, 2004, 2005, 2006, 2007, 2011, 2012 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 "HTMLNameCollection.h"
#include "Element.h"
#include "HTMLDocument.h"
#include "HTMLNames.h"
#include "HTMLObjectElement.h"
namespace WebCore {
using namespace HTMLNames;
HTMLNameCollection::HTMLNameCollection(Document* document, CollectionType type, const AtomicString& name)
: HTMLCollection(document, type)
, m_name(name)
{
}
Element* HTMLNameCollection::itemAfter(Element* previous) const
{
ASSERT(previous != base());
Node* current;
if (!previous)
current = base()->firstChild();
else
current = previous->traverseNextNode(base());
for (; current; current = current->traverseNextNode(base())) {
if (!current->isElementNode())
continue;
Element* e = static_cast<Element*>(current);
switch (type()) {
case WindowNamedItems:
// find only images, forms, applets, embeds and objects by name,
// but anything by id
if (e->hasTagName(imgTag) ||
e->hasTagName(formTag) ||
e->hasTagName(appletTag) ||
e->hasTagName(embedTag) ||
e->hasTagName(objectTag))
if (e->getNameAttribute() == m_name)
return e;
if (e->getIdAttribute() == m_name)
return e;
break;
case DocumentNamedItems:
// find images, forms, applets, embeds, objects and iframes by name,
// applets and object by id, and images by id but only if they have
// a name attribute (this very strange rule matches IE)
if (e->hasTagName(formTag) || e->hasTagName(embedTag) || e->hasTagName(iframeTag)) {
if (e->getNameAttribute() == m_name)
return e;
} else if (e->hasTagName(appletTag)) {
if (e->getNameAttribute() == m_name || e->getIdAttribute() == m_name)
return e;
} else if (e->hasTagName(objectTag)) {
if ((e->getNameAttribute() == m_name || e->getIdAttribute() == m_name)
&& static_cast<HTMLObjectElement*>(e)->isDocNamedItem())
return e;
} else if (e->hasTagName(imgTag)) {
if (e->getNameAttribute() == m_name || (e->getIdAttribute() == m_name && e->hasName()))
return e;
}
break;
default:
ASSERT_NOT_REACHED();
}
}
return 0;
}
}
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