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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 "HTMLAreaElement.h"
#include "HTMLCollection.h"
#include "HTMLImageElement.h"
#include "HTMLNames.h"
#include "HitTestResult.h"
#include "IntSize.h"
#include "RenderObject.h"
using namespace std;
namespace WebCore {
using namespace HTMLNames;
HTMLMapElement::HTMLMapElement(const QualifiedName& tagName, Document* document)
: HTMLElement(tagName, document)
{
ASSERT(hasTagName(mapTag));
}
PassRefPtr<HTMLMapElement> HTMLMapElement::create(Document* document)
{
return adoptRef(new HTMLMapElement(mapTag, document));
}
PassRefPtr<HTMLMapElement> HTMLMapElement::create(const QualifiedName& tagName, Document* document)
{
return adoptRef(new HTMLMapElement(tagName, document));
}
HTMLMapElement::~HTMLMapElement()
{
}
bool HTMLMapElement::mapMouseEvent(int x, int y, const IntSize& size, HitTestResult& result)
{
HTMLAreaElement* defaultArea = 0;
Node *node = this;
while ((node = node->traverseNextNode(this))) {
if (node->hasTagName(areaTag)) {
HTMLAreaElement* areaElt = static_cast<HTMLAreaElement*>(node);
if (areaElt->isDefault()) {
if (!defaultArea)
defaultArea = areaElt;
} else if (areaElt->mapMouseEvent(x, y, size, result))
return true;
}
}
if (defaultArea) {
result.setInnerNode(defaultArea);
result.setURLElement(defaultArea);
}
return defaultArea;
}
HTMLImageElement* HTMLMapElement::imageElement() const
{
RefPtr<HTMLCollection> coll = document()->images();
for (Node* curr = coll->firstItem(); curr; curr = coll->nextItem()) {
if (!curr->hasTagName(imgTag))
continue;
// The HTMLImageElement's useMap() value includes the '#' symbol at the beginning,
// which has to be stripped off.
HTMLImageElement* imageElement = static_cast<HTMLImageElement*>(curr);
String useMapName = imageElement->getAttribute(usemapAttr).string().substring(1);
if (equalIgnoringCase(useMapName, m_name))
return imageElement;
}
return 0;
}
void HTMLMapElement::parseMappedAttribute(Attribute* attribute)
{
// FIXME: This logic seems wrong for XML documents.
// Either the id or name will be used depending on the order the attributes are parsed.
const QualifiedName& attrName = attribute->name();
if (isIdAttributeName(attrName) || attrName == nameAttr) {
Document* document = this->document();
if (isIdAttributeName(attrName)) {
// Call base class so that hasID bit gets set.
HTMLElement::parseMappedAttribute(attribute);
if (document->isHTMLDocument())
return;
}
if (inDocument())
document->removeImageMap(this);
String mapName = attribute->value();
if (mapName[0] == '#')
mapName = mapName.substring(1);
m_name = document->isHTMLDocument() ? mapName.lower() : mapName;
if (inDocument())
document->addImageMap(this);
return;
}
HTMLElement::parseMappedAttribute(attribute);
}
PassRefPtr<HTMLCollection> HTMLMapElement::areas()
{
return HTMLCollection::create(this, MapAreas);
}
void HTMLMapElement::insertedIntoDocument()
{
document()->addImageMap(this);
HTMLElement::insertedIntoDocument();
}
void HTMLMapElement::removedFromDocument()
{
document()->removeImageMap(this);
HTMLElement::removedFromDocument();
}
}
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