| /* |
| * 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 "core/html/HTMLMapElement.h" |
| |
| #include "core/HTMLNames.h" |
| #include "core/dom/Document.h" |
| #include "core/dom/ElementTraversal.h" |
| #include "core/dom/NodeListsNodeData.h" |
| #include "core/frame/UseCounter.h" |
| #include "core/html/HTMLAreaElement.h" |
| #include "core/html/HTMLCollection.h" |
| #include "core/html/HTMLImageElement.h" |
| #include "core/layout/HitTestResult.h" |
| |
| namespace blink { |
| |
| using namespace HTMLNames; |
| |
| inline HTMLMapElement::HTMLMapElement(Document& document) |
| : HTMLElement(mapTag, document) |
| { |
| UseCounter::count(document, UseCounter::MapElement); |
| } |
| |
| DEFINE_NODE_FACTORY(HTMLMapElement) |
| |
| HTMLMapElement::~HTMLMapElement() |
| { |
| } |
| |
| HTMLAreaElement* HTMLMapElement::areaForPoint(LayoutPoint location, const LayoutSize& containerSize) |
| { |
| HTMLAreaElement* defaultArea = nullptr; |
| for (HTMLAreaElement& area : Traversal<HTMLAreaElement>::descendantsOf(*this)) { |
| if (area.isDefault() && !defaultArea) |
| defaultArea = &area; |
| else if (area.pointInArea(location, containerSize)) |
| return &area; |
| } |
| |
| return defaultArea; |
| } |
| |
| HTMLImageElement* HTMLMapElement::imageElement() |
| { |
| RefPtrWillBeRawPtr<HTMLCollection> images = document().images(); |
| for (unsigned i = 0; Element* curr = images->item(i); ++i) { |
| ASSERT(isHTMLImageElement(curr)); |
| |
| // The HTMLImageElement's useMap() value includes the '#' symbol at the beginning, |
| // which has to be stripped off. |
| HTMLImageElement& imageElement = toHTMLImageElement(*curr); |
| String useMapName = imageElement.getAttribute(usemapAttr).string().substring(1); |
| if (equalIgnoringCase(useMapName, m_name)) |
| return &imageElement; |
| } |
| |
| return nullptr; |
| } |
| |
| void HTMLMapElement::parseAttribute(const QualifiedName& name, const AtomicString& value) |
| { |
| // 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 == idAttr || name == nameAttr) { |
| if (name == idAttr) { |
| // Call base class so that hasID bit gets set. |
| HTMLElement::parseAttribute(name, value); |
| if (document().isHTMLDocument()) |
| return; |
| } |
| if (inDocument()) |
| treeScope().removeImageMap(this); |
| String mapName = value; |
| if (mapName[0] == '#') |
| mapName = mapName.substring(1); |
| m_name = AtomicString(document().isHTMLDocument() ? mapName.lower() : mapName); |
| if (inDocument()) |
| treeScope().addImageMap(this); |
| |
| return; |
| } |
| |
| HTMLElement::parseAttribute(name, value); |
| } |
| |
| PassRefPtrWillBeRawPtr<HTMLCollection> HTMLMapElement::areas() |
| { |
| return ensureCachedCollection<HTMLCollection>(MapAreas); |
| } |
| |
| Node::InsertionNotificationRequest HTMLMapElement::insertedInto(ContainerNode* insertionPoint) |
| { |
| if (insertionPoint->inDocument()) |
| treeScope().addImageMap(this); |
| return HTMLElement::insertedInto(insertionPoint); |
| } |
| |
| void HTMLMapElement::removedFrom(ContainerNode* insertionPoint) |
| { |
| if (insertionPoint->inDocument()) |
| treeScope().removeImageMap(this); |
| HTMLElement::removedFrom(insertionPoint); |
| } |
| |
| } |