void ColorDetector::setImage(ColorBuffer& imageBuffer)
{
m_inBuffer = imageBuffer;
if (m_inBuffer.isValid()) {
emit sourceImageChanged(m_inBuffer);
emit sourceImageChanged(m_inBuffer.toImage());
process();
}
}
bool ColorDetector::setImageFile(const QString& filePathName)
{
bool done = m_inBuffer.loadFromFile(filePathName);
if (done && m_inBuffer.isValid()) {
emit sourceImageChanged(m_inBuffer);
emit sourceImageChanged(m_inBuffer.toImage());
process();
}
return done;
}
void ImageLoader::setImageWithoutConsideringPendingLoadEvent(ImageResource* newImage)
{
ASSERT(m_failedLoadURL.isEmpty());
ImageResource* oldImage = m_image.get();
if (newImage != oldImage) {
sourceImageChanged();
m_image = newImage;
if (m_hasPendingBeforeLoadEvent) {
beforeLoadEventSender().cancelEvent(this);
m_hasPendingBeforeLoadEvent = false;
}
if (m_hasPendingLoadEvent) {
loadEventSender().cancelEvent(this);
m_hasPendingLoadEvent = false;
}
if (m_hasPendingErrorEvent) {
errorEventSender().cancelEvent(this);
m_hasPendingErrorEvent = false;
}
m_imageComplete = true;
if (newImage)
newImage->addClient(this);
if (oldImage)
oldImage->removeClient(this);
}
if (RenderImageResource* imageResource = renderImageResource())
imageResource->resetAnimation();
}
void ImageLoader::updateFromElement()
{
// Don't load images for inactive documents. 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.isActive())
return;
AtomicString attr = m_element->imageSourceURL();
if (!m_failedLoadURL.isEmpty() && attr == m_failedLoadURL)
return;
// Do not load any image if the 'src' attribute is missing or if it is
// an empty string.
ResourcePtr<ImageResource> newImage = 0;
if (!attr.isNull() && !stripLeadingAndTrailingHTMLSpaces(attr).isEmpty()) {
FetchRequest request(ResourceRequest(document.completeURL(sourceURI(attr))), element()->localName());
AtomicString crossOriginMode = m_element->fastGetAttribute(HTMLNames::crossoriginAttr);
if (!crossOriginMode.isNull())
request.setCrossOriginAccessControl(document.securityOrigin(), crossOriginMode);
if (m_loadManually) {
bool autoLoadOtherImages = document.fetcher()->autoLoadImages();
document.fetcher()->setAutoLoadImages(false);
newImage = new ImageResource(request.resourceRequest());
newImage->setLoading(true);
document.fetcher()->m_documentResources.set(newImage->url(), newImage.get());
document.fetcher()->setAutoLoadImages(autoLoadOtherImages);
} else {
newImage = document.fetcher()->fetchImage(request);
}
// If we do not have an image here, it means that a cross-site
// violation occurred, or that the image was blocked via Content
// Security Policy, or the page is being dismissed. Trigger an
// error event if the page is not being dismissed.
if (!newImage && !pageIsBeingDismissed(&document)) {
m_failedLoadURL = attr;
m_hasPendingErrorEvent = true;
errorEventSender().dispatchEventSoon(this);
} else
clearFailedLoadURL();
} else if (!attr.isNull()) {
// Fire an error event if the url is empty.
m_hasPendingErrorEvent = true;
errorEventSender().dispatchEventSoon(this);
}
ImageResource* oldImage = m_image.get();
if (newImage != oldImage) {
sourceImageChanged();
if (m_hasPendingBeforeLoadEvent) {
beforeLoadEventSender().cancelEvent(this);
m_hasPendingBeforeLoadEvent = false;
}
if (m_hasPendingLoadEvent) {
loadEventSender().cancelEvent(this);
m_hasPendingLoadEvent = false;
}
// Cancel error events that belong to the previous load, which is now cancelled by changing the src attribute.
// If newImage is null and m_hasPendingErrorEvent is true, we know the error event has been just posted by
// this load and we should not cancel the event.
// FIXME: If both previous load and this one got blocked with an error, we can receive one error event instead of two.
if (m_hasPendingErrorEvent && newImage) {
errorEventSender().cancelEvent(this);
m_hasPendingErrorEvent = false;
}
m_image = newImage;
m_hasPendingBeforeLoadEvent = !m_element->document().isImageDocument() && newImage;
m_hasPendingLoadEvent = newImage;
m_imageComplete = !newImage;
if (newImage) {
if (!m_element->document().isImageDocument()) {
if (!m_element->document().hasListenerType(Document::BEFORELOAD_LISTENER))
dispatchPendingBeforeLoadEvent();
else
beforeLoadEventSender().dispatchEventSoon(this);
} else
updateRenderer();
// If newImage is cached, addClient() will result in the load event
// being queued to fire. Ensure this happens after beforeload is
// dispatched.
newImage->addClient(this);
} else {
updateRenderer();
}
if (oldImage)
oldImage->removeClient(this);
}
if (RenderImageResource* imageResource = renderImageResource())
imageResource->resetAnimation();
// Only consider updating the protection ref-count of the Element immediately before returning
// from this function as doing so might result in the destruction of this ImageLoader.
updatedHasPendingEvent();
}
void ImageLoader::doUpdateFromElement(BypassMainWorldBehavior bypassBehavior, UpdateFromElementBehavior updateBehavior)
{
// FIXME: According to
// http://www.whatwg.org/specs/web-apps/current-work/multipage/embedded-content.html#the-img-element:the-img-element-55
// When "update image" is called due to environment changes and the load fails, onerror should not be called.
// That is currently not the case.
//
// We don't need to call clearLoader here: Either we were called from the
// task, or our caller updateFromElement cleared the task's loader (and set
// m_pendingTask to null).
m_pendingTask.clear();
// Make sure to only decrement the count when we exit this function
OwnPtr<IncrementLoadEventDelayCount> loadDelayCounter;
loadDelayCounter.swap(m_loadDelayCounter);
Document& document = m_element->document();
if (!document.isActive())
return;
AtomicString imageSourceURL = m_element->imageSourceURL();
KURL url = imageSourceToKURL(imageSourceURL);
ResourcePtr<ImageResource> newImage = 0;
RefPtrWillBeRawPtr<Element> protectElement(m_element.get());
if (!url.isNull()) {
// Unlike raw <img>, we block mixed content inside of <picture> or <img srcset>.
ResourceLoaderOptions resourceLoaderOptions = ResourceFetcher::defaultResourceOptions();
ResourceRequest resourceRequest(url);
resourceRequest.setFetchCredentialsMode(WebURLRequest::FetchCredentialsModeSameOrigin);
if (updateBehavior == UpdateForcedReload) {
resourceRequest.setCachePolicy(ResourceRequestCachePolicy::ReloadBypassingCache);
// ImageLoader defers the load of images when in an ImageDocument. Don't defer this load on a forced reload.
m_loadingImageDocument = false;
}
if (isHTMLPictureElement(element()->parentNode()) || !element()->fastGetAttribute(HTMLNames::srcsetAttr).isNull())
resourceRequest.setRequestContext(WebURLRequest::RequestContextImageSet);
FetchRequest request(resourceRequest, element()->localName(), resourceLoaderOptions);
configureRequest(request, bypassBehavior, *m_element, document.clientHintsPreferences());
// Prevent the immediate creation of a ResourceLoader (and therefore a network
// request) for ImageDocument loads. In this case, the image contents have already
// been requested as a main resource and ImageDocumentParser will take care of
// funneling the main resource bytes into the ImageResource.
if (m_loadingImageDocument) {
request.setDefer(FetchRequest::DeferredByClient);
request.setContentSecurityCheck(DoNotCheckContentSecurityPolicy);
}
newImage = ImageResource::fetch(request, document.fetcher());
if (m_loadingImageDocument && newImage)
newImage->setLoading(true);
if (!newImage && !pageIsBeingDismissed(&document)) {
crossSiteOrCSPViolationOccurred(imageSourceURL);
dispatchErrorEvent();
} else {
clearFailedLoadURL();
}
} else {
if (!imageSourceURL.isNull()) {
// Fire an error event if the url string is not empty, but the KURL is.
dispatchErrorEvent();
}
noImageResourceToLoad();
}
ImageResource* oldImage = m_image.get();
if (updateBehavior == UpdateSizeChanged && m_element->layoutObject() && m_element->layoutObject()->isImage() && newImage == oldImage) {
toLayoutImage(m_element->layoutObject())->intrinsicSizeChanged();
} else {
if (newImage != oldImage)
sourceImageChanged();
if (m_hasPendingLoadEvent) {
loadEventSender().cancelEvent(this);
m_hasPendingLoadEvent = false;
}
// Cancel error events that belong to the previous load, which is now cancelled by changing the src attribute.
// If newImage is null and m_hasPendingErrorEvent is true, we know the error event has been just posted by
// this load and we should not cancel the event.
// FIXME: If both previous load and this one got blocked with an error, we can receive one error event instead of two.
if (m_hasPendingErrorEvent && newImage) {
errorEventSender().cancelEvent(this);
m_hasPendingErrorEvent = false;
}
m_image = newImage;
m_hasPendingLoadEvent = newImage;
m_imageComplete = !newImage;
updateLayoutObject();
// If newImage exists and is cached, addClient() will result in the load event
// being queued to fire. Ensure this happens after beforeload is dispatched.
if (newImage)
newImage->addClient(this);
if (oldImage)
oldImage->removeClient(this);
}
if (LayoutImageResource* imageResource = layoutImageResource())
imageResource->resetAnimation();
// Only consider updating the protection ref-count of the Element immediately before returning
// from this function as doing so might result in the destruction of this ImageLoader.
updatedHasPendingEvent();
}
void ImageLoader::doUpdateFromElement(UpdateFromElementBehavior updateBehavior)
{
// FIXME: According to
// http://www.whatwg.org/specs/web-apps/current-work/multipage/embedded-content.html#the-img-element:the-img-element-55
// When "update image" is called due to environment changes and the load fails, onerror should not be called.
// That is currently not the case.
//
// We don't need to call clearLoader here: Either we were called from the
// task, or our caller updateFromElement cleared the task's loader (and set
// m_pendingTask to null).
m_pendingTask.clear();
// Make sure to only decrement the count when we exit this function
OwnPtr<IncrementLoadEventDelayCount> loadDelayCounter;
loadDelayCounter.swap(m_loadDelayCounter);
Document& document = m_element->document();
if (!document.isActive())
return;
AtomicString imageSourceURL = m_element->imageSourceURL();
KURL url = imageSourceToKURL(imageSourceURL);
ResourcePtr<ImageResource> newImage = 0;
if (!url.isNull()) {
// Unlike raw <img>, we block mixed content inside of <picture> or <img srcset>.
ResourceLoaderOptions resourceLoaderOptions = ResourceFetcher::defaultResourceOptions();
ResourceRequest resourceRequest(url);
FetchRequest request(ResourceRequest(url), element()->localName(), resourceLoaderOptions);
newImage = document.fetcher()->fetchImage(request);
if (!newImage && !pageIsBeingDismissed(&document))
crossSiteOrCSPViolationOccured(imageSourceURL);
else
clearFailedLoadURL();
} else if (!imageSourceURL.isNull()) {
// Fire an error event if the url string is not empty, but the KURL is.
m_hasPendingErrorEvent = true;
errorEventSender().dispatchEventSoon(this);
}
ImageResource* oldImage = m_image.get();
if (newImage != oldImage) {
sourceImageChanged();
if (m_hasPendingLoadEvent) {
loadEventSender().cancelEvent(this);
m_hasPendingLoadEvent = false;
}
// Cancel error events that belong to the previous load, which is now cancelled by changing the src attribute.
// If newImage is null and m_hasPendingErrorEvent is true, we know the error event has been just posted by
// this load and we should not cancel the event.
// FIXME: If both previous load and this one got blocked with an error, we can receive one error event instead of two.
if (m_hasPendingErrorEvent && newImage) {
errorEventSender().cancelEvent(this);
m_hasPendingErrorEvent = false;
}
m_image = newImage;
m_hasPendingLoadEvent = newImage;
m_imageComplete = !newImage;
updateRenderer();
// If newImage exists and is cached, addClient() will result in the load event
// being queued to fire. Ensure this happens after beforeload is dispatched.
if (newImage)
newImage->addClient(this);
if (oldImage)
oldImage->removeClient(this);
} else if (updateBehavior == UpdateSizeChanged && m_element->renderer() && m_element->renderer()->isImage()) {
toRenderImage(m_element->renderer())->intrinsicSizeChanged();
}
if (RenderImageResource* imageResource = renderImageResource())
imageResource->resetAnimation();
// Only consider updating the protection ref-count of the Element immediately before returning
// from this function as doing so might result in the destruction of this ImageLoader.
updatedHasPendingEvent();
}
