mirror of
https://github.com/darlinghq/darling-WebCore.git
synced 2024-11-23 20:39:40 +00:00
107 lines
3.7 KiB
C++
107 lines
3.7 KiB
C++
/*
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* Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
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* Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "config.h"
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#include "SVGURIReference.h"
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#include "Document.h"
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#include "Element.h"
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#include "URL.h"
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#include "XLinkNames.h"
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namespace WebCore {
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void SVGURIReference::parseAttribute(const QualifiedName& name, const AtomicString& value)
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{
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if (name.matches(XLinkNames::hrefAttr))
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setHrefBaseValue(value);
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}
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bool SVGURIReference::isKnownAttribute(const QualifiedName& attrName)
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{
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return attrName.matches(XLinkNames::hrefAttr);
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}
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String SVGURIReference::fragmentIdentifierFromIRIString(const String& url, const Document& document)
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{
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size_t start = url.find('#');
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if (start == notFound)
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return emptyString();
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URL base = start ? URL(document.baseURL(), url.substring(0, start)) : document.baseURL();
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String fragmentIdentifier = url.substring(start);
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URL kurl(base, fragmentIdentifier);
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if (equalIgnoringFragmentIdentifier(kurl, document.url()))
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return fragmentIdentifier.substring(1);
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// The url doesn't have any fragment identifier.
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return emptyString();
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}
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static inline URL urlFromIRIStringWithFragmentIdentifier(const String& url, const Document& document, String& fragmentIdentifier)
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{
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size_t startOfFragmentIdentifier = url.find('#');
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if (startOfFragmentIdentifier == notFound)
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return URL();
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// Exclude the '#' character when determining the fragmentIdentifier.
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fragmentIdentifier = url.substring(startOfFragmentIdentifier + 1);
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if (startOfFragmentIdentifier) {
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URL base(document.baseURL(), url.substring(0, startOfFragmentIdentifier));
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return URL(base, url.substring(startOfFragmentIdentifier));
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}
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return URL(document.baseURL(), url.substring(startOfFragmentIdentifier));
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}
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Element* SVGURIReference::targetElementFromIRIString(const String& iri, const Document& document, String* fragmentIdentifier, const Document* externalDocument)
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{
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// If there's no fragment identifier contained within the IRI string, we can't lookup an element.
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String id;
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URL url = urlFromIRIStringWithFragmentIdentifier(iri, document, id);
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if (url == URL())
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return 0;
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if (fragmentIdentifier)
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*fragmentIdentifier = id;
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if (id.isEmpty())
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return 0;
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if (externalDocument) {
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// Enforce that the referenced url matches the url of the document that we've loaded for it!
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ASSERT(equalIgnoringFragmentIdentifier(url, externalDocument->url()));
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return externalDocument->getElementById(id);
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}
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// Exit early if the referenced url is external, and we have no externalDocument given.
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if (isExternalURIReference(iri, document))
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return 0;
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return document.getElementById(id);
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}
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void SVGURIReference::addSupportedAttributes(HashSet<QualifiedName>& supportedAttributes)
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{
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supportedAttributes.add(XLinkNames::hrefAttr);
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}
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}
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