HTMLTitleElement.cpp [plain text]
#include "config.h"
#include "HTMLTitleElement.h"
#include "Document.h"
#include "HTMLNames.h"
#include "NodeRenderStyle.h"
#include "RenderElement.h"
#include "RenderStyle.h"
#include "StyleInheritedData.h"
#include "StyleResolver.h"
#include "Text.h"
#include "TextNodeTraversal.h"
#include <wtf/Ref.h>
#include <wtf/text/StringBuilder.h>
namespace WebCore {
using namespace HTMLNames;
inline HTMLTitleElement::HTMLTitleElement(const QualifiedName& tagName, Document& document)
: HTMLElement(tagName, document)
{
ASSERT(hasTagName(titleTag));
}
Ref<HTMLTitleElement> HTMLTitleElement::create(const QualifiedName& tagName, Document& document)
{
return adoptRef(*new HTMLTitleElement(tagName, document));
}
Node::InsertionNotificationRequest HTMLTitleElement::insertedInto(ContainerNode& insertionPoint)
{
HTMLElement::insertedInto(insertionPoint);
if (inDocument() && !isInShadowTree())
document().titleElementAdded(*this);
return InsertionDone;
}
void HTMLTitleElement::removedFrom(ContainerNode& insertionPoint)
{
HTMLElement::removedFrom(insertionPoint);
if (insertionPoint.inDocument() && !insertionPoint.isInShadowTree())
document().titleElementRemoved(*this);
}
void HTMLTitleElement::childrenChanged(const ChildChange& change)
{
HTMLElement::childrenChanged(change);
m_title = computedTextWithDirection();
document().titleElementTextChanged(*this);
}
String HTMLTitleElement::text() const
{
StringBuilder result;
for (Text* text = TextNodeTraversal::firstChild(*this); text; text = TextNodeTraversal::nextSibling(*text))
result.append(text->data());
return result.toString();
}
StringWithDirection HTMLTitleElement::computedTextWithDirection()
{
TextDirection direction = LTR;
if (auto* computedStyle = this->computedStyle())
direction = computedStyle->direction();
else {
auto style = styleResolver().styleForElement(*this, parentElement() ? parentElement()->renderStyle() : nullptr).renderStyle;
direction = style->direction();
}
return StringWithDirection(text(), direction);
}
void HTMLTitleElement::setText(const String& value)
{
setTextContent(value);
}
}