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/*
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
* (C) 1999 Antti Koivisto (koivisto@kde.org)
* Copyright (C) 2004, 2005, 2006, 2007, 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.
*/
#include "config.h"
#include "HTMLMapElement.h"
#include "Attribute.h"
#include "Document.h"
#include "ElementInlines.h"
#include "GenericCachedHTMLCollection.h"
#include "HTMLAreaElement.h"
#include "HTMLImageElement.h"
#include "HitTestResult.h"
#include "IntSize.h"
#include "NodeRareData.h"
#include "TypedElementDescendantIteratorInlines.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(HTMLMapElement);
using namespace HTMLNames;
HTMLMapElement::HTMLMapElement(const QualifiedName& tagName, Document& document)
: HTMLElement(tagName, document)
{
ASSERT(hasTagName(mapTag));
}
Ref<HTMLMapElement> HTMLMapElement::create(Document& document)
{
return adoptRef(*new HTMLMapElement(mapTag, document));
}
Ref<HTMLMapElement> HTMLMapElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new HTMLMapElement(tagName, document));
}
HTMLMapElement::~HTMLMapElement() = default;
bool HTMLMapElement::mapMouseEvent(LayoutPoint location, const LayoutSize& size, HitTestResult& result)
{
RefPtr<HTMLAreaElement> defaultArea;
for (auto& area : descendantsOfType<HTMLAreaElement>(*this)) {
if (area.isDefault()) {
if (!defaultArea)
defaultArea = &area;
} else if (area.mapMouseEvent(location, size, result))
return true;
}
if (defaultArea) {
result.setInnerNode(defaultArea.get());
result.setURLElement(defaultArea.get());
}
return defaultArea;
}
HTMLImageElement* HTMLMapElement::imageElement()
{
if (m_name.isEmpty())
return nullptr;
return treeScope().imageElementByUsemap(*m_name.impl());
}
void HTMLMapElement::attributeChanged(const QualifiedName& name, const AtomString& oldValue, const AtomString& newValue, AttributeModificationReason attributeModificationReason)
{
HTMLElement::attributeChanged(name, oldValue, newValue, attributeModificationReason);
// FIXME: This logic seems wrong for XML documents.
// Either the id or name will be used depending on the order the attributes are parsed.
if (name == HTMLNames::idAttr || name == HTMLNames::nameAttr) {
if (name == HTMLNames::idAttr) {
// Call base class so that hasID bit gets set.
HTMLElement::attributeChanged(name, oldValue, newValue, attributeModificationReason);
if (document().isHTMLDocument())
return;
}
if (isInTreeScope())
treeScope().removeImageMap(*this);
AtomString mapName = newValue;
if (mapName[0] == '#')
mapName = StringView(mapName).substring(1).toAtomString();
m_name = WTFMove(mapName);
if (isInTreeScope())
treeScope().addImageMap(*this);
}
}
Ref<HTMLCollection> HTMLMapElement::areas()
{
return ensureRareData().ensureNodeLists().addCachedCollection<GenericCachedHTMLCollection<CollectionTypeTraits<CollectionType::MapAreas>::traversalType>>(*this, CollectionType::MapAreas);
}
Node::InsertedIntoAncestorResult HTMLMapElement::insertedIntoAncestor(InsertionType insertionType, ContainerNode& parentOfInsertedTree)
{
Node::InsertedIntoAncestorResult request = HTMLElement::insertedIntoAncestor(insertionType, parentOfInsertedTree);
if (insertionType.treeScopeChanged)
treeScope().addImageMap(*this);
return request;
}
void HTMLMapElement::removedFromAncestor(RemovalType removalType, ContainerNode& oldParentOfRemovedTree)
{
if (removalType.treeScopeChanged)
oldParentOfRemovedTree.treeScope().removeImageMap(*this);
HTMLElement::removedFromAncestor(removalType, oldParentOfRemovedTree);
}
}
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