HTMLMarqueeElement.cpp [plain text]
#include "config.h"
#include "HTMLMarqueeElement.h"
#include "Attribute.h"
#include "CSSPropertyNames.h"
#include "CSSValueKeywords.h"
#include "HTMLNames.h"
#include "HTMLParserIdioms.h"
#include "RenderLayer.h"
#include "RenderMarquee.h"
#include <wtf/IsoMallocInlines.h>
namespace WebCore {
WTF_MAKE_ISO_ALLOCATED_IMPL(HTMLMarqueeElement);
using namespace HTMLNames;
inline HTMLMarqueeElement::HTMLMarqueeElement(const QualifiedName& tagName, Document& document)
: HTMLElement(tagName, document)
, ActiveDOMObject(document)
{
ASSERT(hasTagName(marqueeTag));
}
Ref<HTMLMarqueeElement> HTMLMarqueeElement::create(const QualifiedName& tagName, Document& document)
{
auto marqueeElement = adoptRef(*new HTMLMarqueeElement(tagName, document));
marqueeElement->suspendIfNeeded();
return marqueeElement;
}
int HTMLMarqueeElement::minimumDelay() const
{
if (!hasAttributeWithoutSynchronization(truespeedAttr)) {
return 60;
}
return 16; }
bool HTMLMarqueeElement::isPresentationAttribute(const QualifiedName& name) const
{
if (name == widthAttr || name == heightAttr || name == bgcolorAttr || name == vspaceAttr || name == hspaceAttr || name == scrollamountAttr || name == scrolldelayAttr || name == loopAttr || name == behaviorAttr || name == directionAttr)
return true;
return HTMLElement::isPresentationAttribute(name);
}
void HTMLMarqueeElement::collectStyleForPresentationAttribute(const QualifiedName& name, const AtomString& value, MutableStyleProperties& style)
{
if (name == widthAttr) {
if (!value.isEmpty())
addHTMLLengthToStyle(style, CSSPropertyWidth, value);
} else if (name == heightAttr) {
if (!value.isEmpty())
addHTMLLengthToStyle(style, CSSPropertyHeight, value);
} else if (name == bgcolorAttr) {
if (!value.isEmpty())
addHTMLColorToStyle(style, CSSPropertyBackgroundColor, value);
} else if (name == vspaceAttr) {
if (!value.isEmpty()) {
addHTMLLengthToStyle(style, CSSPropertyMarginTop, value);
addHTMLLengthToStyle(style, CSSPropertyMarginBottom, value);
}
} else if (name == hspaceAttr) {
if (!value.isEmpty()) {
addHTMLLengthToStyle(style, CSSPropertyMarginLeft, value);
addHTMLLengthToStyle(style, CSSPropertyMarginRight, value);
}
} else if (name == scrollamountAttr) {
if (!value.isEmpty())
addHTMLLengthToStyle(style, CSSPropertyWebkitMarqueeIncrement, value);
} else if (name == scrolldelayAttr) {
if (!value.isEmpty())
addHTMLLengthToStyle(style, CSSPropertyWebkitMarqueeSpeed, value);
} else if (name == loopAttr) {
if (!value.isEmpty()) {
if (value == "-1" || equalLettersIgnoringASCIICase(value, "infinite"))
addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitMarqueeRepetition, CSSValueInfinite);
else
addHTMLLengthToStyle(style, CSSPropertyWebkitMarqueeRepetition, value);
}
} else if (name == behaviorAttr) {
if (!value.isEmpty())
addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitMarqueeStyle, value);
} else if (name == directionAttr) {
if (!value.isEmpty())
addPropertyToPresentationAttributeStyle(style, CSSPropertyWebkitMarqueeDirection, value);
} else
HTMLElement::collectStyleForPresentationAttribute(name, value, style);
}
void HTMLMarqueeElement::start()
{
if (auto* renderer = renderMarquee())
renderer->start();
}
void HTMLMarqueeElement::stop()
{
if (auto* renderer = renderMarquee())
renderer->stop();
}
unsigned HTMLMarqueeElement::scrollAmount() const
{
return limitToOnlyHTMLNonNegative(attributeWithoutSynchronization(scrollamountAttr), RenderStyle::initialMarqueeIncrement().intValue());
}
void HTMLMarqueeElement::setScrollAmount(unsigned scrollAmount)
{
setUnsignedIntegralAttribute(scrollamountAttr, limitToOnlyHTMLNonNegative(scrollAmount, RenderStyle::initialMarqueeIncrement().intValue()));
}
unsigned HTMLMarqueeElement::scrollDelay() const
{
return limitToOnlyHTMLNonNegative(attributeWithoutSynchronization(scrolldelayAttr), RenderStyle::initialMarqueeSpeed());
}
void HTMLMarqueeElement::setScrollDelay(unsigned scrollDelay)
{
setUnsignedIntegralAttribute(scrolldelayAttr, limitToOnlyHTMLNonNegative(scrollDelay, RenderStyle::initialMarqueeSpeed()));
}
int HTMLMarqueeElement::loop() const
{
bool ok;
int loopValue = attributeWithoutSynchronization(loopAttr).toInt(&ok);
return ok && loopValue > 0 ? loopValue : -1;
}
ExceptionOr<void> HTMLMarqueeElement::setLoop(int loop)
{
if (loop <= 0 && loop != -1)
return Exception { IndexSizeError };
setIntegralAttribute(loopAttr, loop);
return { };
}
void HTMLMarqueeElement::suspend(ReasonForSuspension)
{
if (RenderMarquee* marqueeRenderer = renderMarquee())
marqueeRenderer->suspend();
}
void HTMLMarqueeElement::resume()
{
if (RenderMarquee* marqueeRenderer = renderMarquee())
marqueeRenderer->updateMarqueePosition();
}
RenderMarquee* HTMLMarqueeElement::renderMarquee() const
{
if (!renderer() || !renderer()->hasLayer())
return nullptr;
return renderBoxModelObject()->layer()->marquee();
}
}