LayoutUnit RenderReplaced::computeReplacedLogicalHeight() const
{
// 10.5 Content height: the 'height' property: http://www.w3.org/TR/CSS21/visudet.html#propdef-height
if (hasReplacedLogicalHeight())
return computeReplacedLogicalHeightRespectingMinMaxHeight(computeReplacedLogicalHeightUsing(style()->logicalHeight()));
RenderBox* contentRenderer = embeddedContentBox();
// 10.6.2 Inline, replaced elements: http://www.w3.org/TR/CSS21/visudet.html#inline-replaced-height
bool isPercentageIntrinsicSize = false;
double intrinsicRatio = 0;
FloatSize intrinsicSize;
if (contentRenderer)
contentRenderer->computeIntrinsicRatioInformation(intrinsicSize, intrinsicRatio, isPercentageIntrinsicSize);
else
computeIntrinsicRatioInformation(intrinsicSize, intrinsicRatio, isPercentageIntrinsicSize);
if (intrinsicRatio && !isHorizontalWritingMode())
intrinsicRatio = 1 / intrinsicRatio;
bool widthIsAuto = style()->logicalWidth().isAuto();
bool hasIntrinsicHeight = m_hasIntrinsicSize || (!isPercentageIntrinsicSize && intrinsicSize.height() > 0);
// If 'height' and 'width' both have computed values of 'auto' and the element also has an intrinsic height, then that intrinsic height is the used value of 'height'.
if (widthIsAuto && hasIntrinsicHeight) {
if (m_hasIntrinsicSize)
return computeReplacedLogicalHeightRespectingMinMaxHeight(calcAspectRatioLogicalHeight());
return static_cast<LayoutUnit>(intrinsicSize.height() * style()->effectiveZoom());
}
// Otherwise, if 'height' has a computed value of 'auto', and the element has an intrinsic ratio then the used value of 'height' is:
// (used width) / (intrinsic ratio)
if (intrinsicRatio && !isPercentageIntrinsicSize) {
// FIXME: Remove unnecessary rounding when layout is off ints: webkit.org/b/63656
return computeReplacedLogicalHeightRespectingMinMaxHeight(round(availableLogicalWidth() / intrinsicRatio));
}
// Otherwise, if 'height' has a computed value of 'auto', and the element has an intrinsic height, then that intrinsic height is the used value of 'height'.
if (hasIntrinsicHeight) {
if (m_hasIntrinsicSize)
return computeReplacedLogicalHeightRespectingMinMaxHeight(calcAspectRatioLogicalHeight());
return static_cast<LayoutUnit>(intrinsicSize.height() * style()->effectiveZoom());
}
// Otherwise, if 'height' has a computed value of 'auto', but none of the conditions above are met, then the used value of 'height' must be set to the height
// of the largest rectangle that has a 2:1 ratio, has a height not greater than 150px, and has a width not greater than the device width.
return computeReplacedLogicalHeightRespectingMinMaxHeight(cDefaultHeight);
}
int RenderReplaced::computeIntrinsicLogicalHeight(RenderBox* contentRenderer) const
{
if (m_hasIntrinsicSize)
return computeReplacedLogicalHeightRespectingMinMaxHeight(calcAspectRatioLogicalHeight());
ASSERT(contentRenderer);
ASSERT(contentRenderer->style());
return contentRenderer->computeReplacedLogicalHeightRespectingMinMaxHeight(contentRenderer->computeReplacedLogicalHeightUsing(contentRenderer->style()->logicalHeight()));
}
int RenderReplaced::computeReplacedLogicalHeight() const
{
int logicalHeight;
if (lengthIsSpecified(style()->logicalHeight()))
logicalHeight = computeReplacedLogicalHeightUsing(style()->logicalHeight());
else if (m_hasIntrinsicSize)
logicalHeight = calcAspectRatioLogicalHeight();
else
logicalHeight = intrinsicLogicalHeight();
int minLogicalHeight = computeReplacedLogicalHeightUsing(style()->logicalMinHeight());
int maxLogicalHeight = style()->logicalMaxHeight().isUndefined() ? logicalHeight : computeReplacedLogicalHeightUsing(style()->logicalMaxHeight());
return max(minLogicalHeight, min(logicalHeight, maxLogicalHeight));
}
