LayoutSize RenderVideo::calculateIntrinsicSize()
{
HTMLVideoElement* video = videoElement();
// Spec text from 4.8.6
//
// The intrinsic width of a video element's playback area is the intrinsic width
// of the video resource, if that is available; otherwise it is the intrinsic
// width of the poster frame, if that is available; otherwise it is 300 CSS pixels.
//
// The intrinsic height of a video element's playback area is the intrinsic height
// of the video resource, if that is available; otherwise it is the intrinsic
// height of the poster frame, if that is available; otherwise it is 150 CSS pixels.
MediaPlayer* player = mediaElement()->player();
if (player && video->readyState() >= HTMLVideoElement::HAVE_METADATA) {
LayoutSize size = player->naturalSize();
if (!size.isEmpty())
return size;
}
if (video->shouldDisplayPosterImage() && !m_cachedImageSize.isEmpty() && !imageResource()->errorOccurred())
return m_cachedImageSize;
// <video> in standalone media documents should not use the default 300x150
// size since they also have audio-only files. By setting the intrinsic
// size to 300x1 the video will resize itself in these cases, and audio will
// have the correct height (it needs to be > 0 for controls to render properly).
if (video->ownerDocument() && video->ownerDocument()->isMediaDocument())
return LayoutSize(defaultSize().width(), 1);
return defaultSize();
}
LayoutSize RenderVideo::calculateIntrinsicSize()
{
// Spec text from 4.8.6
//
// The intrinsic width of a video element's playback area is the intrinsic width
// of the video resource, if that is available; otherwise it is the intrinsic
// width of the poster frame, if that is available; otherwise it is 300 CSS pixels.
//
// The intrinsic height of a video element's playback area is the intrinsic height
// of the video resource, if that is available; otherwise it is the intrinsic
// height of the poster frame, if that is available; otherwise it is 150 CSS pixels.
MediaPlayer* player = videoElement().player();
if (player && videoElement().readyState() >= HTMLVideoElement::HAVE_METADATA) {
LayoutSize size = player->naturalSize();
if (!size.isEmpty())
return size;
}
if (videoElement().shouldDisplayPosterImage() && !m_cachedImageSize.isEmpty() && !imageResource()->errorOccurred())
return m_cachedImageSize;
#if !PLATFORM(IOS)
// When the natural size of the video is unavailable, we use the provided
// width and height attributes of the video element as the intrinsic size until
// better values become available.
if (videoElement().hasAttribute(widthAttr) && videoElement().hasAttribute(heightAttr))
return LayoutSize(videoElement().width(), videoElement().height());
#endif
// <video> in standalone media documents should not use the default 300x150
// size since they also have audio-only files. By setting the intrinsic
// size to 300x1 the video will resize itself in these cases, and audio will
// have the correct height (it needs to be > 0 for controls to render properly).
if (videoElement().document().isMediaDocument())
return LayoutSize(defaultSize().width(), 1);
return defaultSize();
}
