ImageInputType.cpp [plain text]
#include "config.h"
#include "ImageInputType.h"
#include "CachedImage.h"
#include "FormDataList.h"
#include "HTMLFormElement.h"
#include "HTMLImageLoader.h"
#include "HTMLInputElement.h"
#include "HTMLNames.h"
#include "HTMLParserIdioms.h"
#include "InputTypeNames.h"
#include "MouseEvent.h"
#include "RenderImage.h"
#include <wtf/NeverDestroyed.h>
namespace WebCore {
using namespace HTMLNames;
ImageInputType::ImageInputType(HTMLInputElement& element)
: BaseButtonInputType(element)
{
}
const AtomicString& ImageInputType::formControlType() const
{
return InputTypeNames::image();
}
bool ImageInputType::isFormDataAppendable() const
{
return true;
}
bool ImageInputType::appendFormData(FormDataList& encoding, bool) const
{
if (!element().isActivatedSubmit())
return false;
const AtomicString& name = element().name();
if (name.isEmpty()) {
encoding.appendData("x", m_clickLocation.x());
encoding.appendData("y", m_clickLocation.y());
return true;
}
static NeverDestroyed<String> dotXString(MAKE_STATIC_STRING_IMPL(".x"));
static NeverDestroyed<String> dotYString(MAKE_STATIC_STRING_IMPL(".y"));
encoding.appendData(name + dotXString.get(), m_clickLocation.x());
encoding.appendData(name + dotYString.get(), m_clickLocation.y());
if (!element().value().isEmpty())
encoding.appendData(name, element().value());
return true;
}
bool ImageInputType::supportsValidation() const
{
return false;
}
void ImageInputType::handleDOMActivateEvent(Event& event)
{
Ref<HTMLInputElement> element(this->element());
if (element->isDisabledFormControl() || !element->form())
return;
element->setActivatedSubmit(true);
m_clickLocation = IntPoint();
if (event.underlyingEvent()) {
Event& underlyingEvent = *event.underlyingEvent();
if (is<MouseEvent>(underlyingEvent)) {
MouseEvent& mouseEvent = downcast<MouseEvent>(underlyingEvent);
if (!mouseEvent.isSimulated())
m_clickLocation = IntPoint(mouseEvent.offsetX(), mouseEvent.offsetY());
}
}
element->form()->prepareForSubmission(event); element->setActivatedSubmit(false);
event.setDefaultHandled();
}
RenderPtr<RenderElement> ImageInputType::createInputRenderer(RenderStyle&& style)
{
return createRenderer<RenderImage>(element(), WTFMove(style));
}
void ImageInputType::altAttributeChanged()
{
if (!is<RenderImage>(element().renderer()))
return;
auto* renderer = downcast<RenderImage>(element().renderer());
if (!renderer)
return;
renderer->updateAltText();
}
void ImageInputType::srcAttributeChanged()
{
if (!element().renderer())
return;
element().ensureImageLoader().updateFromElementIgnoringPreviousError();
}
void ImageInputType::attach()
{
BaseButtonInputType::attach();
HTMLImageLoader& imageLoader = element().ensureImageLoader();
imageLoader.updateFromElement();
auto* renderer = downcast<RenderImage>(element().renderer());
if (!renderer)
return;
if (imageLoader.hasPendingBeforeLoadEvent())
return;
auto& imageResource = renderer->imageResource();
imageResource.setCachedImage(imageLoader.image());
if (!imageLoader.image() && !imageResource.cachedImage())
renderer->setImageSizeForAltText();
}
bool ImageInputType::shouldRespectAlignAttribute()
{
return true;
}
bool ImageInputType::canBeSuccessfulSubmitButton()
{
return true;
}
bool ImageInputType::isImageButton() const
{
return true;
}
bool ImageInputType::isEnumeratable()
{
return false;
}
bool ImageInputType::shouldRespectHeightAndWidthAttributes()
{
return true;
}
unsigned ImageInputType::height() const
{
Ref<HTMLInputElement> element(this->element());
element->document().updateLayout();
if (auto* renderer = element->renderer())
return adjustForAbsoluteZoom(downcast<RenderBox>(*renderer).contentHeight(), *renderer);
if (auto optionalHeight = parseHTMLNonNegativeInteger(element->attributeWithoutSynchronization(heightAttr)))
return optionalHeight.value();
auto* imageLoader = element->imageLoader();
if (imageLoader && imageLoader->image())
return imageLoader->image()->imageSizeForRenderer(element->renderer(), 1).height().toUnsigned();
return 0;
}
unsigned ImageInputType::width() const
{
Ref<HTMLInputElement> element(this->element());
element->document().updateLayout();
if (auto* renderer = element->renderer())
return adjustForAbsoluteZoom(downcast<RenderBox>(*renderer).contentWidth(), *renderer);
if (auto optionalWidth = parseHTMLNonNegativeInteger(element->attributeWithoutSynchronization(widthAttr)))
return optionalWidth.value();
auto* imageLoader = element->imageLoader();
if (imageLoader && imageLoader->image())
return imageLoader->image()->imageSizeForRenderer(element->renderer(), 1).width().toUnsigned();
return 0;
}
}