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(MainOrPreferredSize, style().logicalHeight()));
RenderBox* contentRenderer = embeddedContentBox();
// 10.6.2 Inline, replaced elements: http://www.w3.org/TR/CSS21/visudet.html#inline-replaced-height
double intrinsicRatio = 0;
FloatSize constrainedSize;
computeAspectRatioInformationForRenderBox(contentRenderer, constrainedSize, intrinsicRatio);
bool widthIsAuto = style().logicalWidth().isAuto();
bool hasIntrinsicHeight = constrainedSize.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)
return computeReplacedLogicalHeightRespectingMinMaxHeight(constrainedSize.height());
// 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)
return computeReplacedLogicalHeightRespectingMinMaxHeight(roundToInt(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)
return computeReplacedLogicalHeightRespectingMinMaxHeight(constrainedSize.height());
// 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(intrinsicLogicalHeight());
}
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;
computeIntrinsicRatioInformationForRenderBox(contentRenderer, intrinsicSize, intrinsicRatio, isPercentageIntrinsicSize);
// FIXME: Remove unnecessary round/roundToInt calls from this method when layout is off ints: webkit.org/b/63656
bool widthIsAuto = style()->logicalWidth().isAuto();
bool hasIntrinsicHeight = !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)
return computeReplacedLogicalHeightRespectingMinMaxHeight(roundToInt(intrinsicSize.height()));
// 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)
return computeReplacedLogicalHeightRespectingMinMaxHeight(roundToInt(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)
return computeReplacedLogicalHeightRespectingMinMaxHeight(roundToInt(intrinsicSize.height()));
// 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(intrinsicLogicalHeight());
}
LayoutUnit RenderSVGRoot::computeReplacedLogicalHeight() const
{
SVGSVGElement* svg = static_cast<SVGSVGElement*>(node());
ASSERT(svg);
// When we're embedded through SVGImage (border-image/background-image/<html:img>/...) we're forced to resize to a specific size.
if (!m_containerSize.isEmpty())
return m_containerSize.height();
if (hasReplacedLogicalHeight())
return RenderReplaced::computeReplacedLogicalHeight();
if (svg->heightAttributeEstablishesViewport()) {
Length height = svg->intrinsicHeight(SVGSVGElement::IgnoreCSSProperties);
if (height.isPercent()) {
RenderBlock* cb = containingBlock();
ASSERT(cb);
while (cb->isAnonymous()) {
cb = cb->containingBlock();
cb->addPercentHeightDescendant(const_cast<RenderSVGRoot*>(this));
}
} else
RenderBlock::removePercentHeightDescendant(const_cast<RenderSVGRoot*>(this));
return resolveLengthAttributeForSVG(height, style()->effectiveZoom(), containingBlock()->availableLogicalHeight());
}
// Only SVGs embedded in <object> reach this point.
ASSERT(isEmbeddedThroughFrameContainingSVGDocument());
return document()->frame()->ownerRenderer()->availableLogicalHeight();
}
LayoutUnit LayoutReplaced::computeReplacedLogicalHeight(
LayoutUnit estimatedUsedWidth) const {
// 10.5 Content height: the 'height' property:
// http://www.w3.org/TR/CSS21/visudet.html#propdef-height
if (hasReplacedLogicalHeight())
return computeReplacedLogicalHeightRespectingMinMaxHeight(
computeReplacedLogicalHeightUsing(MainOrPreferredSize,
style()->logicalHeight()));
LayoutReplaced* contentLayoutObject = embeddedReplacedContent();
// 10.6.2 Inline, replaced elements:
// http://www.w3.org/TR/CSS21/visudet.html#inline-replaced-height
IntrinsicSizingInfo intrinsicSizingInfo;
computeIntrinsicSizingInfoForReplacedContent(contentLayoutObject,
intrinsicSizingInfo);
FloatSize constrainedSize =
constrainIntrinsicSizeToMinMax(intrinsicSizingInfo);
bool widthIsAuto = style()->logicalWidth().isAuto();
// 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 && intrinsicSizingInfo.hasHeight)
return computeReplacedLogicalHeightRespectingMinMaxHeight(
LayoutUnit(constrainedSize.height()));
// 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 (!intrinsicSizingInfo.aspectRatio.isEmpty()) {
LayoutUnit usedWidth =
estimatedUsedWidth ? estimatedUsedWidth : availableLogicalWidth();
return computeReplacedLogicalHeightRespectingMinMaxHeight(
resolveHeightForRatio(usedWidth, intrinsicSizingInfo.aspectRatio));
}
// 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 (intrinsicSizingInfo.hasHeight)
return computeReplacedLogicalHeightRespectingMinMaxHeight(
LayoutUnit(constrainedSize.height()));
// 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(
intrinsicLogicalHeight());
}
