bool CSSCursorImageValue::hasFragmentInURL() const {
if (m_imageValue->isImageValue()) {
CSSImageValue* imageValue = toCSSImageValue(m_imageValue.get());
KURL kurl(ParsedURLString, imageValue->url());
return kurl.hasFragmentIdentifier();
}
return false;
}
StyleImage* CSSCursorImageValue::cacheImage(const Document& document,
float deviceScaleFactor) {
if (m_imageValue->isImageSetValue())
return toCSSImageSetValue(*m_imageValue)
.cacheImage(document, deviceScaleFactor);
if (m_isCachePending) {
m_isCachePending = false;
// For SVG images we need to lazily substitute in the correct URL. Rather
// than attempt to change the URL of the CSSImageValue (which would then
// change behavior like cssText), we create an alternate CSSImageValue to
// use.
if (hasFragmentInURL()) {
CSSImageValue* imageValue = toCSSImageValue(m_imageValue.get());
// FIXME: This will fail if the <cursor> element is in a shadow DOM
// (http://crbug/59827)
if (SVGCursorElement* cursorElement =
resourceReferencedByCursorElement(imageValue->url(), document)) {
CSSImageValue* svgImageValue =
CSSImageValue::create(document.completeURL(
cursorElement->href()->currentValue()->value()));
svgImageValue->setReferrer(imageValue->referrer());
m_cachedImage = svgImageValue->cacheImage(document);
return m_cachedImage.get();
}
}
if (m_imageValue->isImageValue())
m_cachedImage = toCSSImageValue(*m_imageValue).cacheImage(document);
}
if (m_cachedImage && m_cachedImage->isImageResource())
return toStyleFetchedImage(m_cachedImage);
return nullptr;
}
void CSSImageSetValue::fillImageSet()
{
size_t length = this->length();
size_t i = 0;
while (i < length) {
CSSImageValue* imageValue = toCSSImageValue(item(i));
String imageURL = imageValue->url();
++i;
ASSERT_WITH_SECURITY_IMPLICATION(i < length);
CSSValue* scaleFactorValue = item(i);
float scaleFactor = toCSSPrimitiveValue(scaleFactorValue)->getFloatValue();
ImageWithScale image;
image.imageURL = imageURL;
image.referrer = imageValue->referrer();
image.scaleFactor = scaleFactor;
m_imagesInSet.append(image);
++i;
}
// Sort the images so that they are stored in order from lowest resolution to highest.
std::sort(m_imagesInSet.begin(), m_imagesInSet.end(), CSSImageSetValue::compareByScaleFactor);
}