NS_INTERFACE_MAP_END
NS_IMETHODIMP
ImageLoader::Notify(imgIRequest *aRequest, int32_t aType, const nsIntRect* aData)
{
if (aType == imgINotificationObserver::SIZE_AVAILABLE) {
nsCOMPtr<imgIContainer> image;
aRequest->GetImage(getter_AddRefs(image));
return OnStartContainer(aRequest, image);
}
if (aType == imgINotificationObserver::IS_ANIMATED) {
return OnImageIsAnimated(aRequest);
}
if (aType == imgINotificationObserver::LOAD_COMPLETE) {
return OnStopFrame(aRequest);
}
if (aType == imgINotificationObserver::FRAME_UPDATE) {
return FrameChanged(aRequest);
}
return NS_OK;
}
/* static */ void
ProgressTracker::SyncNotifyInternal(ProxyArray& aProxies,
bool aHasImage,
Progress aProgress,
const nsIntRect& aDirtyRect)
{
MOZ_ASSERT(NS_IsMainThread());
// OnStartRequest
if (aProgress & FLAG_REQUEST_STARTED)
NOTIFY_IMAGE_OBSERVERS(aProxies, OnStartRequest());
// OnStartContainer
if (aProgress & FLAG_HAS_SIZE)
NOTIFY_IMAGE_OBSERVERS(aProxies, OnStartContainer());
// OnStartDecode
if (aProgress & FLAG_DECODE_STARTED)
NOTIFY_IMAGE_OBSERVERS(aProxies, OnStartDecode());
// BlockOnload
if (aProgress & FLAG_ONLOAD_BLOCKED)
NOTIFY_IMAGE_OBSERVERS(aProxies, BlockOnload());
if (aHasImage) {
// OnFrameUpdate
// If there's any content in this frame at all (always true for
// vector images, true for raster images that have decoded at
// least one frame) then send OnFrameUpdate.
if (!aDirtyRect.IsEmpty())
NOTIFY_IMAGE_OBSERVERS(aProxies, OnFrameUpdate(&aDirtyRect));
if (aProgress & FLAG_FRAME_STOPPED)
NOTIFY_IMAGE_OBSERVERS(aProxies, OnStopFrame());
// OnImageIsAnimated
if (aProgress & FLAG_IS_ANIMATED)
NOTIFY_IMAGE_OBSERVERS(aProxies, OnImageIsAnimated());
}
// Send UnblockOnload before OnStopDecode and OnStopRequest. This allows
// observers that can fire events when they receive those notifications to do
// so then, instead of being forced to wait for UnblockOnload.
if (aProgress & FLAG_ONLOAD_UNBLOCKED) {
NOTIFY_IMAGE_OBSERVERS(aProxies, UnblockOnload());
}
if (aProgress & FLAG_DECODE_STOPPED) {
MOZ_ASSERT(aHasImage, "Stopped decoding without ever having an image?");
NOTIFY_IMAGE_OBSERVERS(aProxies, OnStopDecode());
}
if (aProgress & FLAG_REQUEST_STOPPED) {
NOTIFY_IMAGE_OBSERVERS(aProxies,
OnStopRequest(aProgress & FLAG_MULTIPART_STOPPED));
}
}
NS_IMETHODIMP
nsImageLoadingContent::OnStartContainer(imgIRequest* aRequest,
imgIContainer* aContainer)
{
NS_ENSURE_TRUE(nsContentUtils::IsCallerChrome(), NS_ERROR_NOT_AVAILABLE);
LOOP_OVER_OBSERVERS(OnStartContainer(aRequest, aContainer));
// Have to check for state changes here, since we might have been in
// the LOADING state before.
UpdateImageState(PR_TRUE);
return NS_OK;
}
NS_IMETHODIMP
ImageDocument::Notify(imgIRequest* aRequest, int32_t aType, const nsIntRect* aData)
{
if (aType == imgINotificationObserver::SIZE_AVAILABLE) {
nsCOMPtr<imgIContainer> image;
aRequest->GetImage(getter_AddRefs(image));
return OnStartContainer(aRequest, image);
}
nsDOMTokenList* classList = mImageContent->AsElement()->ClassList();
mozilla::ErrorResult rv;
if (aType == imgINotificationObserver::DECODE_COMPLETE) {
if (mImageContent && !nsContentUtils::IsChildOfSameType(this)) {
// Update the background-color of the image only after the
// image has been decoded to prevent flashes of just the
// background-color.
classList->Add(NS_LITERAL_STRING("decoded"), rv);
NS_ENSURE_SUCCESS(rv.ErrorCode(), rv.ErrorCode());
}
}
if (aType == imgINotificationObserver::DISCARD) {
// mImageContent can be null if the document is already destroyed
if (mImageContent && !nsContentUtils::IsChildOfSameType(this)) {
// Remove any decoded-related styling when the image is unloaded.
classList->Remove(NS_LITERAL_STRING("decoded"), rv);
NS_ENSURE_SUCCESS(rv.ErrorCode(), rv.ErrorCode());
}
}
if (aType == imgINotificationObserver::LOAD_COMPLETE) {
uint32_t reqStatus;
aRequest->GetImageStatus(&reqStatus);
nsresult status =
reqStatus & imgIRequest::STATUS_ERROR ? NS_ERROR_FAILURE : NS_OK;
return OnStopRequest(aRequest, status);
}
return NS_OK;
}