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;
}
NS_IMETHODIMP
nsVideoFrame::BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsRect& aDirtyRect,
const nsDisplayListSet& aLists)
{
if (!IsVisibleForPainting(aBuilder))
return NS_OK;
DO_GLOBAL_REFLOW_COUNT_DSP("nsVideoFrame");
nsresult rv = DisplayBorderBackgroundOutline(aBuilder, aLists);
NS_ENSURE_SUCCESS(rv, rv);
if (!ShouldDisplayPoster() && HasVideoData()) {
rv = aLists.Content()->AppendNewToTop(
new (aBuilder) nsDisplayGeneric(this, ::PaintVideo, "Video"));
NS_ENSURE_SUCCESS(rv, rv);
}
// Add child frames to display list. We expect up to two children, an image
// frame for the poster, and the box frame for the video controls.
for (nsIFrame *child = mFrames.FirstChild();
child;
child = child->GetNextSibling()) {
if (child->GetType() == nsGkAtoms::imageFrame && ShouldDisplayPoster()) {
rv = child->BuildDisplayListForStackingContext(aBuilder,
aDirtyRect - child->GetOffsetTo(this),
aLists.Content());
NS_ENSURE_SUCCESS(rv,rv);
} else if (child->GetType() == nsGkAtoms::boxFrame) {
rv = child->BuildDisplayListForStackingContext(aBuilder,
aDirtyRect - child->GetOffsetTo(this),
aLists.Content());
NS_ENSURE_SUCCESS(rv,rv);
}
}
return NS_OK;
}
nsSize
nsVideoFrame::GetVideoIntrinsicSize(nsIRenderingContext *aRenderingContext)
{
// Defaulting size to 300x150 if no size given.
nsIntSize size(300,150);
if (ShouldDisplayPoster()) {
// Use the poster image frame's size.
nsIFrame *child = mFrames.FirstChild();
if (child && child->GetType() == nsGkAtoms::imageFrame) {
nsImageFrame* imageFrame = static_cast<nsImageFrame*>(child);
nsSize imgsize;
imageFrame->GetIntrinsicImageSize(imgsize);
return imgsize;
}
}
if (!HasVideoData()) {
if (!aRenderingContext || !mFrames.FirstChild()) {
// We just want our intrinsic ratio, but audio elements need no
// intrinsic ratio, so just return "no ratio". Also, if there's
// no controls frame, we prefer to be zero-sized.
return nsSize(0, 0);
}
// Ask the controls frame what its preferred height is
nsBoxLayoutState boxState(PresContext(), aRenderingContext, 0);
nscoord prefHeight = mFrames.LastChild()->GetPrefSize(boxState).height;
return nsSize(nsPresContext::CSSPixelsToAppUnits(size.width), prefHeight);
}
nsHTMLVideoElement* element = static_cast<nsHTMLVideoElement*>(GetContent());
size = element->GetVideoSize(size);
return nsSize(nsPresContext::CSSPixelsToAppUnits(size.width),
nsPresContext::CSSPixelsToAppUnits(size.height));
}