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;
}
