File indexing completed on 2024-04-28 15:24:27

 /*
     Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
                   2004, 2005, 2007 Rob Buis <buis@kde.org>
                   2007 Eric Seidel <eric@webkit.org>
 
     This file is part of the KDE project
 
     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 "wtf/Platform.h"
 
 #if ENABLE(SVG)
 #include "SVGAElement.h"
 
 /*#include "Attr.h"
 #include "CSSHelper.h"*/
 #include "Document.h"
 /*#include "EventHandler.h"
 #include "EventNames.h"
 #include "Frame.h"
 #include "FrameLoader.h"
 #include "KeyboardEvent.h"
 #include "MouseEvent.h"
 #include "PlatformMouseEvent.h"*/
 #include "RenderSVGTransformableContainer.h"
 #include "RenderSVGInline.h"
 /*#include "ResourceRequest.h"
 #include "SVGSMILElement.h"*/
 #include "SVGNames.h"
 #include "XLinkNames.h"
 
 namespace WebCore
 {
 
 //using namespace EventNames;
 
 SVGAElement::SVGAElement(const QualifiedName &tagName, Document *doc)
     : SVGStyledTransformableElement(tagName, doc)
     , SVGURIReference()
     , SVGTests()
     , SVGLangSpace()
     , SVGExternalResourcesRequired()
 {
 }
 
 SVGAElement::~SVGAElement()
 {
 }
 
 String SVGAElement::title() const
 {
     return getAttribute(XLinkNames::titleAttr);
 }
 
 ANIMATED_PROPERTY_DEFINITIONS(SVGAElement, String, String, string, Target, target, SVGNames::targetAttr, m_target)
 
 void SVGAElement::parseMappedAttribute(MappedAttribute *attr)
 {
     if (attr->name() == SVGNames::targetAttr) {
         setTargetBaseValue(attr->value());
     } else {
         if (SVGURIReference::parseMappedAttribute(attr)) {
             return;
         }
         if (SVGTests::parseMappedAttribute(attr)) {
             return;
         }
         if (SVGLangSpace::parseMappedAttribute(attr)) {
             return;
         }
         if (SVGExternalResourcesRequired::parseMappedAttribute(attr)) {
             return;
         }
         SVGStyledTransformableElement::parseMappedAttribute(attr);
     }
 }
 
 void SVGAElement::svgAttributeChanged(const QualifiedName &attrName)
 {
     SVGStyledTransformableElement::svgAttributeChanged(attrName);
 
     // Unlike other SVG*Element classes, SVGAElement only listens to SVGURIReference changes
     // as none of the other properties changes the linking behaviour for our <a> element.
     if (SVGURIReference::isKnownAttribute(attrName)) {
         /*khtml FIXME bool wasLink = m_isLink;
         m_isLink = !href().isNull();
 
         if (wasLink != m_isLink)
             setChanged();*/
     }
 }
 
 RenderObject *SVGAElement::createRenderer(RenderArena *arena, RenderStyle *style)
 {
     Q_UNUSED(style);
     if (static_cast<SVGElement *>(parent())->isTextContent()) {
         return new(arena) RenderSVGInline(this);
     }
 
     return new(arena) RenderSVGTransformableContainer(this);
 }
 
 void SVGAElement::defaultEventHandler(Event *evt)
 {
     /*if (m_isLink && (evt->type() == clickEvent || (evt->type() == keydownEvent && m_focused))) {
         MouseEvent* e = 0;
         if (evt->type() == clickEvent && evt->isMouseEvent())
             e = static_cast<MouseEvent*>(evt);
 
         KeyboardEvent* k = 0;
         if (evt->type() == keydownEvent && evt->isKeyboardEvent())
             k = static_cast<KeyboardEvent*>(evt);
 
         if (e && e->button() == RightButton) {
             SVGStyledTransformableElement::defaultEventHandler(evt);
             return;
         }
 
         if (k) {
             if (k->keyIdentifier() != "Enter") {
                 SVGStyledTransformableElement::defaultEventHandler(evt);
                 return;
             }
             evt->setDefaultHandled();
             dispatchSimulatedClick(evt);
             return;
         }
 
         String target = this->target();
         if (e && e->button() == MiddleButton)
             target = "_blank";
         else if (target.isEmpty()) // if target is empty, default to "_self" or use xlink:target if set
             target = (getAttribute(XLinkNames::showAttr) == "new") ? "_blank" : "_self";
 
         if (!evt->defaultPrevented()) {
             String url = parseURL(href());
     #if ENABLE(SVG_ANIMATION)
             if (url.startsWith("#")) {
                 Element* targetElement = document()->getElementById(url.substring(1));
                 if (SVGSMILElement::isSMILElement(targetElement)) {
                     SVGSMILElement* timed = static_cast<SVGSMILElement*>(targetElement);
                     timed->beginByLinkActivation();
                     evt->setDefaultHandled();
                     SVGStyledTransformableElement::defaultEventHandler(evt);
                     return;
                 }
             }
     #endif
             if (document()->frame())
                 document()->frame()->loader()->urlSelected(document()->completeURL(url), target, evt, false, true);
         }
 
         evt->setDefaultHandled();
     }*/
 
     SVGStyledTransformableElement::defaultEventHandler(evt);
 }
 
 bool SVGAElement::supportsFocus() const
 {
     /*if (isContentEditable())
         return SVGStyledTransformableElement::supportsFocus();*/
     return isFocusable() || (document() && !document()->haveStylesheetsLoaded());
 }
 
 bool SVGAElement::isFocusableImpl(FocusType ft) const
 {
     if (ft == FT_Mouse) {
         return false;
     }
 
     if (isContentEditable()) {
         return SVGStyledTransformableElement::isFocusableImpl(ft);
     }
 
     // TODO: implement focus rules for SVG
     return false;
 }
 
 bool SVGAElement::childShouldCreateRenderer(Node *child) const
 {
     // https://www.w3.org/2003/01/REC-SVG11-20030114-errata#linking-text-environment
     // The 'a' element may contain any element that its parent may contain, except itself.
     if (child->hasTagName(SVGNames::aTag)) {
         return false;
     }
     if (parent() && parent()->isSVGElement()) {
         return static_cast<SVGElement *>(parent())->childShouldCreateRenderer(child);
     }
 
     return SVGElement::childShouldCreateRenderer(child);
 }
 
 } // namespace WebCore
 
 #endif // ENABLE(SVG)