StyleFetchedImageSet* CSSImageSetValue::cachedImageSet(ResourceFetcher* loader, float deviceScaleFactor, const ResourceLoaderOptions& options)
{
ASSERT(loader);
m_scaleFactor = deviceScaleFactor;
if (!m_imagesInSet.size())
fillImageSet();
if (!m_accessedBestFitImage) {
// FIXME: In the future, we want to take much more than deviceScaleFactor into acount here.
// All forms of scale should be included: Page::pageScaleFactor(), LocalFrame::pageZoomFactor(),
// and any CSS transforms. https://bugs.webkit.org/show_bug.cgi?id=81698
ImageWithScale image = bestImageForScaleFactor();
if (Document* document = loader->document()) {
FetchRequest request(ResourceRequest(document->completeURL(image.imageURL)), FetchInitiatorTypeNames::css, options);
if (options.corsEnabled == IsCORSEnabled)
request.setCrossOriginAccessControl(loader->document()->securityOrigin(), options.allowCredentials);
if (ResourcePtr<ImageResource> cachedImage = loader->fetchImage(request)) {
m_imageSet = StyleFetchedImageSet::create(cachedImage.get(), image.scaleFactor, this);
m_accessedBestFitImage = true;
}
}
}
return (m_imageSet && m_imageSet->isImageResourceSet()) ? toStyleFetchedImageSet(m_imageSet) : 0;
}
StyleCachedImageSet* CSSImageSetValue::cachedImageSet(CachedResourceLoader* loader)
{
ASSERT(loader);
Document* document = loader->document();
if (Page* page = document->page())
m_scaleFactor = page->deviceScaleFactor();
else
m_scaleFactor = 1;
if (!m_imagesInSet.size())
fillImageSet();
if (!m_accessedBestFitImage) {
// FIXME: In the future, we want to take much more than deviceScaleFactor into acount here.
// All forms of scale should be included: Page::pageScaleFactor(), Frame::pageZoomFactor(),
// and any CSS transforms. https://bugs.webkit.org/show_bug.cgi?id=81698
ImageWithScale image = bestImageForScaleFactor();
ResourceRequest request(loader->document()->completeURL(image.imageURL));
if (CachedResourceHandle<CachedImage> cachedImage = loader->requestImage(request)) {
m_imageSet = StyleCachedImageSet::create(cachedImage.get(), image.scaleFactor, this);
m_accessedBestFitImage = true;
}
}
return (m_imageSet && m_imageSet->isCachedImageSet()) ? static_cast<StyleCachedImageSet*>(m_imageSet.get()) : 0;
}
StyleCachedImageSet* CSSImageSetValue::cachedImageSet(CachedResourceLoader* loader, const ResourceLoaderOptions& options)
{
ASSERT(loader);
Document* document = loader->document();
if (Page* page = document->page())
m_scaleFactor = page->deviceScaleFactor();
else
m_scaleFactor = 1;
if (!m_imagesInSet.size())
fillImageSet();
if (!m_accessedBestFitImage) {
// FIXME: In the future, we want to take much more than deviceScaleFactor into acount here.
// All forms of scale should be included: Page::pageScaleFactor(), Frame::pageZoomFactor(),
// and any CSS transforms. https://bugs.webkit.org/show_bug.cgi?id=81698
ImageWithScale image = bestImageForScaleFactor();
CachedResourceRequest request(ResourceRequest(document->completeURL(image.imageURL)), options);
request.setInitiator(cachedResourceRequestInitiators().css);
if (options.requestOriginPolicy() == PotentiallyCrossOriginEnabled)
updateRequestForAccessControl(request.mutableResourceRequest(), document->securityOrigin(), options.allowCredentials());
if (CachedResourceHandle<CachedImage> cachedImage = loader->requestImage(request)) {
detachPendingImage();
m_imageSet = StyleCachedImageSet::create(cachedImage.get(), image.scaleFactor, this);
m_accessedBestFitImage = true;
}
}
return (m_imageSet && m_imageSet->isCachedImageSet()) ? toStyleCachedImageSet(m_imageSet.get()) : nullptr;
}
StyleCachedImage* CSSImageSetValue::bestFitImage(CachedResourceLoader& loader, const ResourceLoaderOptions& options)
{
Document* document = loader.document();
if (Page* page = document->page())
m_scaleFactor = page->deviceScaleFactor();
else
m_scaleFactor = 1;
if (!m_imagesInSet.size())
fillImageSet();
if (!m_accessedBestFitImage) {
// FIXME: In the future, we want to take much more than deviceScaleFactor into acount here.
// All forms of scale should be included: Page::pageScaleFactor(), Frame::pageZoomFactor(),
// and any CSS transforms. https://bugs.webkit.org/show_bug.cgi?id=81698
ImageWithScale image = bestImageForScaleFactor();
CachedResourceRequest request(ResourceRequest(document->completeURL(image.imageURL)), options);
request.setInitiator(cachedResourceRequestInitiators().css);
if (options.mode == FetchOptions::Mode::Cors) {
ASSERT(document->securityOrigin());
updateRequestForAccessControl(request.mutableResourceRequest(), *document->securityOrigin(), options.allowCredentials);
}
if (CachedResourceHandle<CachedImage> cachedImage = loader.requestImage(request)) {
detachPendingImage();
m_image = StyleCachedImage::createForImageSet(cachedImage.get(), image.scaleFactor, *this);
m_accessedBestFitImage = true;
}
}
return is<StyleCachedImage>(m_image.get()) ? downcast<StyleCachedImage>(m_image.get()) : nullptr;
}
CSSImageSetValue::ImageWithScale CSSImageSetValue::bestImageForScaleFactor()
{
if (!m_imagesInSet.size())
fillImageSet();
ImageWithScale image;
size_t numberOfImages = m_imagesInSet.size();
for (size_t i = 0; i < numberOfImages; ++i) {
image = m_imagesInSet.at(i);
if (image.scaleFactor >= m_deviceScaleFactor)
return image;
}
return image;
}