本文整理汇总了C++中HTMLVideoElement::height方法的典型用法代码示例。如果您正苦于以下问题：C++ HTMLVideoElement::height方法的具体用法？C++ HTMLVideoElement::height怎么用？C++ HTMLVideoElement::height使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类HTMLVideoElement的用法示例。
在下文中一共展示了HTMLVideoElement::height方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: calculateIntrinsicSize
IntSize 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)
return player->naturalSize();
if (video->shouldDisplayPosterImage() && !m_cachedImageSize.isEmpty() && !imageResource()->errorOccurred())
return m_cachedImageSize;
// 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 (video->hasAttribute(widthAttr) && video->hasAttribute(heightAttr))
return IntSize(video->width(), video->height());
// <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 IntSize(defaultSize().width(), 1);
return defaultSize();
}