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);
// 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;
}
static NS_IMETHODIMP
CreateHTMLImgElement(nsISupports* aOuter, REFNSIID aIID, void** aResult)
{
*aResult = nsnull;
if (aOuter)
return NS_ERROR_NO_AGGREGATION;
// Note! NS_NewHTMLImageElement is special cased to handle a null nodeinfo
nsIContent* inst = NS_NewHTMLImageElement(nsnull);
nsresult rv = NS_ERROR_OUT_OF_MEMORY;
if (inst) {
NS_ADDREF(inst);
rv = inst->QueryInterface(aIID, aResult);
NS_RELEASE(inst);
}
return rv;
}
nsresult
ImageDocument::CreateSyntheticDocument()
{
// Synthesize an html document that refers to the image
nsresult rv = MediaDocument::CreateSyntheticDocument();
NS_ENSURE_SUCCESS(rv, rv);
// Add the image element
Element* body = GetBodyElement();
if (!body) {
NS_WARNING("no body on image document!");
return NS_ERROR_FAILURE;
}
nsCOMPtr<nsINodeInfo> nodeInfo;
nodeInfo = mNodeInfoManager->GetNodeInfo(nsGkAtoms::img, nullptr,
kNameSpaceID_XHTML,
nsIDOMNode::ELEMENT_NODE);
mImageContent = NS_NewHTMLImageElement(nodeInfo.forget());
if (!mImageContent) {
return NS_ERROR_OUT_OF_MEMORY;
}
nsCOMPtr<nsIImageLoadingContent> imageLoader = do_QueryInterface(mImageContent);
NS_ENSURE_TRUE(imageLoader, NS_ERROR_UNEXPECTED);
nsAutoCString src;
mDocumentURI->GetSpec(src);
// 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();
NS_ConvertUTF8toUTF16 srcString(src);
// Make sure not to start the image load from here...
imageLoader->SetLoadingEnabled(false);
mImageContent->SetAttr(kNameSpaceID_None, nsGkAtoms::src, srcString, false);
mImageContent->SetAttr(kNameSpaceID_None, nsGkAtoms::alt, srcString, false);
body->AppendChildTo(mImageContent, false);
imageLoader->SetLoadingEnabled(true);
return NS_OK;
}
