203 lines
6.5 KiB
C++
203 lines
6.5 KiB
C++
/*
|
|
* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
|
|
* (C) 1999 Antti Koivisto (koivisto@kde.org)
|
|
* (C) 2001 Dirk Mueller (mueller@kde.org)
|
|
* Copyright (C) 2003, 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 "HTMLMetaElement.h"
|
|
|
|
#include "Attribute.h"
|
|
#include "Color.h"
|
|
#include "Document.h"
|
|
#include "Frame.h"
|
|
#include "FrameView.h"
|
|
#include "HTMLHeadElement.h"
|
|
#include "HTMLNames.h"
|
|
#include "HTMLParserIdioms.h"
|
|
#include "MediaList.h"
|
|
#include "MediaQueryEvaluator.h"
|
|
#include "MediaQueryParser.h"
|
|
#include "RenderStyle.h"
|
|
#include "Settings.h"
|
|
#include "StyleResolveForDocument.h"
|
|
#include <wtf/IsoMallocInlines.h>
|
|
|
|
namespace WebCore {
|
|
|
|
WTF_MAKE_ISO_ALLOCATED_IMPL(HTMLMetaElement);
|
|
|
|
using namespace HTMLNames;
|
|
|
|
inline HTMLMetaElement::HTMLMetaElement(const QualifiedName& tagName, Document& document)
|
|
: HTMLElement(tagName, document)
|
|
{
|
|
ASSERT(hasTagName(metaTag));
|
|
}
|
|
|
|
Ref<HTMLMetaElement> HTMLMetaElement::create(Document& document)
|
|
{
|
|
return adoptRef(*new HTMLMetaElement(metaTag, document));
|
|
}
|
|
|
|
Ref<HTMLMetaElement> HTMLMetaElement::create(const QualifiedName& tagName, Document& document)
|
|
{
|
|
return adoptRef(*new HTMLMetaElement(tagName, document));
|
|
}
|
|
|
|
bool HTMLMetaElement::mediaAttributeMatches()
|
|
{
|
|
auto& document = this->document();
|
|
|
|
if (!m_media)
|
|
m_media = MediaQuerySet::create(attributeWithoutSynchronization(mediaAttr).convertToASCIILowercase(), MediaQueryParserContext(document));
|
|
|
|
std::optional<RenderStyle> documentStyle;
|
|
if (document.hasLivingRenderTree())
|
|
documentStyle = Style::resolveForDocument(document);
|
|
|
|
String mediaType;
|
|
if (auto* frame = document.frame()) {
|
|
if (auto* frameView = frame->view())
|
|
mediaType = frameView->mediaType();
|
|
}
|
|
|
|
return MediaQueryEvaluator(mediaType, document, documentStyle ? &*documentStyle : nullptr).evaluate(*m_media);
|
|
}
|
|
|
|
const Color& HTMLMetaElement::contentColor()
|
|
{
|
|
if (!m_contentColor)
|
|
m_contentColor = CSSParser::parseColor(content());
|
|
return *m_contentColor;
|
|
}
|
|
|
|
void HTMLMetaElement::attributeChanged(const QualifiedName& name, const AtomString& oldValue, const AtomString& newValue, AttributeModificationReason reason)
|
|
{
|
|
HTMLElement::attributeChanged(name, oldValue, newValue, reason);
|
|
|
|
if (!isInDocumentTree())
|
|
return;
|
|
|
|
if (name == nameAttr) {
|
|
if (equalLettersIgnoringASCIICase(oldValue, "theme-color") && !equalLettersIgnoringASCIICase(newValue, "theme-color"))
|
|
document().metaElementThemeColorChanged(*this);
|
|
return;
|
|
}
|
|
}
|
|
|
|
void HTMLMetaElement::parseAttribute(const QualifiedName& name, const AtomString& value)
|
|
{
|
|
if (name == nameAttr) {
|
|
process();
|
|
return;
|
|
}
|
|
|
|
if (name == contentAttr) {
|
|
m_contentColor = std::nullopt;
|
|
process();
|
|
return;
|
|
}
|
|
|
|
if (name == http_equivAttr) {
|
|
process();
|
|
return;
|
|
}
|
|
|
|
if (name == mediaAttr) {
|
|
m_media = nullptr;
|
|
process();
|
|
return;
|
|
}
|
|
|
|
HTMLElement::parseAttribute(name, value);
|
|
}
|
|
|
|
Node::InsertedIntoAncestorResult HTMLMetaElement::insertedIntoAncestor(InsertionType insertionType, ContainerNode& parentOfInsertedTree)
|
|
{
|
|
HTMLElement::insertedIntoAncestor(insertionType, parentOfInsertedTree);
|
|
if (insertionType.connectedToDocument)
|
|
return InsertedIntoAncestorResult::NeedsPostInsertionCallback;
|
|
return InsertedIntoAncestorResult::Done;
|
|
}
|
|
|
|
void HTMLMetaElement::didFinishInsertingNode()
|
|
{
|
|
process();
|
|
}
|
|
|
|
void HTMLMetaElement::removedFromAncestor(RemovalType removalType, ContainerNode& oldParentOfRemovedTree)
|
|
{
|
|
HTMLElement::removedFromAncestor(removalType, oldParentOfRemovedTree);
|
|
|
|
if (removalType.disconnectedFromDocument && equalLettersIgnoringASCIICase(name(), "theme-color"))
|
|
oldParentOfRemovedTree.document().metaElementThemeColorChanged(*this);
|
|
}
|
|
|
|
void HTMLMetaElement::process()
|
|
{
|
|
// Changing a meta tag while it's not in the document tree shouldn't have any effect on the document.
|
|
if (!isInDocumentTree())
|
|
return;
|
|
|
|
const AtomString& contentValue = attributeWithoutSynchronization(contentAttr);
|
|
if (contentValue.isNull())
|
|
return;
|
|
|
|
if (equalLettersIgnoringASCIICase(name(), "viewport"))
|
|
document().processViewport(contentValue, ViewportArguments::ViewportMeta);
|
|
else if (document().settings().disabledAdaptationsMetaTagEnabled() && equalLettersIgnoringASCIICase(name(), "disabled-adaptations"))
|
|
document().processDisabledAdaptations(contentValue);
|
|
#if ENABLE(DARK_MODE_CSS)
|
|
else if (equalLettersIgnoringASCIICase(name(), "color-scheme") || equalLettersIgnoringASCIICase(name(), "supported-color-schemes"))
|
|
document().processColorScheme(contentValue);
|
|
#endif
|
|
else if (equalLettersIgnoringASCIICase(name(), "theme-color"))
|
|
document().metaElementThemeColorChanged(*this);
|
|
#if PLATFORM(IOS_FAMILY)
|
|
else if (equalLettersIgnoringASCIICase(name(), "format-detection"))
|
|
document().processFormatDetection(contentValue);
|
|
else if (equalLettersIgnoringASCIICase(name(), "apple-mobile-web-app-orientations"))
|
|
document().processWebAppOrientations();
|
|
#endif
|
|
else if (equalLettersIgnoringASCIICase(name(), "referrer"))
|
|
document().processReferrerPolicy(contentValue, ReferrerPolicySource::MetaTag);
|
|
|
|
const AtomString& httpEquivValue = attributeWithoutSynchronization(http_equivAttr);
|
|
if (!httpEquivValue.isNull())
|
|
document().processMetaHttpEquiv(httpEquivValue, contentValue, isDescendantOf(document().head()));
|
|
}
|
|
|
|
const AtomString& HTMLMetaElement::content() const
|
|
{
|
|
return attributeWithoutSynchronization(contentAttr);
|
|
}
|
|
|
|
const AtomString& HTMLMetaElement::httpEquiv() const
|
|
{
|
|
return attributeWithoutSynchronization(http_equivAttr);
|
|
}
|
|
|
|
const AtomString& HTMLMetaElement::name() const
|
|
{
|
|
return getNameAttribute();
|
|
}
|
|
|
|
}
|