PRBool nsVideoFrame::ShouldDisplayPoster()
{
if (!HasVideoElement())
return PR_FALSE;
nsHTMLVideoElement* element = static_cast<nsHTMLVideoElement*>(GetContent());
if (element->GetPlayedOrSeeked() && HasVideoData())
return PR_FALSE;
nsCOMPtr<nsIImageLoadingContent> imgContent = do_QueryInterface(mPosterImage);
NS_ENSURE_TRUE(imgContent, PR_FALSE);
nsCOMPtr<imgIRequest> request;
nsresult res = imgContent->GetRequest(nsIImageLoadingContent::CURRENT_REQUEST,
getter_AddRefs(request));
if (NS_FAILED(res) || !request) {
return PR_FALSE;
}
PRUint32 status = 0;
res = request->GetImageStatus(&status);
if (NS_FAILED(res) || (status & imgIRequest::STATUS_ERROR))
return PR_FALSE;
return PR_TRUE;
}
PRBool nsVideoFrame::HasVideoData()
{
if (!HasVideoElement())
return PR_FALSE;
nsHTMLVideoElement* element = static_cast<nsHTMLVideoElement*>(GetContent());
nsIntSize size = element->GetVideoSize(nsIntSize(0,0));
return size != nsIntSize(0,0);
}
nsresult
nsVideoFrame::CreateAnonymousContent(nsTArray<nsIContent*>& aElements)
{
nsNodeInfoManager *nodeInfoManager = GetContent()->GetCurrentDoc()->NodeInfoManager();
nsCOMPtr<nsINodeInfo> nodeInfo;
if (HasVideoElement()) {
// Create an anonymous image element as a child to hold the poster
// image. We may not have a poster image now, but one could be added
// before we load, or on a subsequent load.
nodeInfo = nodeInfoManager->GetNodeInfo(nsGkAtoms::img,
nsnull,
kNameSpaceID_XHTML);
NS_ENSURE_TRUE(nodeInfo, NS_ERROR_OUT_OF_MEMORY);
mPosterImage = NS_NewHTMLImageElement(nodeInfo);
NS_ENSURE_TRUE(mPosterImage, NS_ERROR_OUT_OF_MEMORY);
// Push a null JSContext on the stack so that code that runs
// within the below code doesn't think it's being called by
// JS. See bug 604262.
nsCxPusher pusher;
pusher.PushNull();
// Set the nsImageLoadingContent::ImageState() to 0. This means that the
// image will always report its state as 0, so it will never be reframed
// to show frames for loading or the broken image icon. This is important,
// as the image is native anonymous, and so can't be reframed (currently).
nsCOMPtr<nsIImageLoadingContent> imgContent = do_QueryInterface(mPosterImage);
NS_ENSURE_TRUE(imgContent, NS_ERROR_FAILURE);
imgContent->ForceImageState(PR_TRUE, 0);
nsresult res = UpdatePosterSource(PR_FALSE);
NS_ENSURE_SUCCESS(res,res);
if (!aElements.AppendElement(mPosterImage))
return NS_ERROR_OUT_OF_MEMORY;
}
// Set up "videocontrols" XUL element which will be XBL-bound to the
// actual controls.
nodeInfo = nodeInfoManager->GetNodeInfo(nsGkAtoms::videocontrols,
nsnull,
kNameSpaceID_XUL);
NS_ENSURE_TRUE(nodeInfo, NS_ERROR_OUT_OF_MEMORY);
nsresult rv = NS_NewElement(getter_AddRefs(mVideoControls),
kNameSpaceID_XUL,
nodeInfo,
PR_FALSE);
NS_ENSURE_SUCCESS(rv, rv);
if (!aElements.AppendElement(mVideoControls))
return NS_ERROR_OUT_OF_MEMORY;
return NS_OK;
}
NS_IMETHODIMP
nsVideoFrame::AttributeChanged(PRInt32 aNameSpaceID,
nsIAtom* aAttribute,
PRInt32 aModType)
{
if (aAttribute == nsGkAtoms::poster && HasVideoElement()) {
nsresult res = UpdatePosterSource(PR_TRUE);
NS_ENSURE_SUCCESS(res,res);
}
return nsContainerFrame::AttributeChanged(aNameSpaceID,
aAttribute,
aModType);
}
nsresult
nsVideoFrame::UpdatePosterSource(PRBool aNotify)
{
NS_ASSERTION(HasVideoElement(), "Only call this on <video> elements.");
nsHTMLVideoElement* element = static_cast<nsHTMLVideoElement*>(GetContent());
nsAutoString posterStr;
element->GetPoster(posterStr);
nsresult res = mPosterImage->SetAttr(kNameSpaceID_None,
nsGkAtoms::src,
posterStr,
aNotify);
NS_ENSURE_SUCCESS(res,res);
return NS_OK;
}
