void ImageLoader::updateFromElement()
{
// If we're not making renderers for the page, then don't load images. We don't want to slow
// down the raw HTML parsing case by loading images we don't intend to display.
Document* document = m_element->document();
if (!document->renderer())
return;
AtomicString attr = m_element->getAttribute(m_element->imageSourceAttributeName());
if (attr == m_failedLoadURL)
return;
// Do not load any image if the 'src' attribute is missing or if it is
// an empty string referring to a local file. The latter condition is
// a quirk that preserves old behavior that Dashboard widgets
// need (<rdar://problem/5994621>).
CachedImage* newImage = 0;
if (!(attr.isNull() || (attr.isEmpty() && document->baseURI().isLocalFile()))) {
if (m_loadManually) {
document->docLoader()->setAutoLoadImages(false);
newImage = new CachedImage(sourceURI(attr));
newImage->setLoading(true);
newImage->setDocLoader(document->docLoader());
document->docLoader()->m_documentResources.set(newImage->url(), newImage);
} else
newImage = document->docLoader()->requestImage(sourceURI(attr));
// If we do not have an image here, it means that a cross-site
// violation occurred.
m_failedLoadURL = !newImage ? attr : AtomicString();
}
CachedImage* oldImage = m_image.get();
if (newImage != oldImage) {
setLoadingImage(newImage);
if (newImage) {
newImage->addClient(this);
if (!m_element->document()->hasListenerType(Document::BEFORELOAD_LISTENER))
dispatchPendingBeforeLoadEvent();
else
beforeLoadEventSender().dispatchEventSoon(this);
}
if (oldImage)
oldImage->removeClient(this);
}
if (RenderObject* renderer = m_element->renderer()) {
if (!renderer->isImage())
return;
toRenderImage(renderer)->resetAnimation();
}
}
void ImageLoader::setImage(CachedImage* newImage)
{
ASSERT(m_failedLoadURL.isEmpty());
CachedImage* oldImage = m_image.get();
if (newImage != oldImage) {
setLoadingImage(newImage);
m_firedLoad = true;
m_imageComplete = true;
if (newImage)
newImage->addClient(this);
if (oldImage)
oldImage->removeClient(this);
}
if (RenderObject* renderer = element()->renderer()) {
if (!renderer->isImage())
return;
static_cast<RenderImage*>(renderer)->resetAnimation();
}
}
