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 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());
}
void RenderReplaced::layout()
{
StackStats::LayoutCheckPoint layoutCheckPoint;
ASSERT(needsLayout());
LayoutRepainter repainter(*this, checkForRepaintDuringLayout());
setHeight(minimumReplacedHeight());
updateLogicalWidth();
updateLogicalHeight();
// Now that we've calculated our preferred layout, we check to see
// if we should further constrain sizing to the intrinsic aspect ratio.
if (style().aspectRatioType() == AspectRatioFromIntrinsic && !m_intrinsicSize.isEmpty()) {
float aspectRatio = m_intrinsicSize.aspectRatio();
LayoutSize frameSize = size();
float frameAspectRatio = frameSize.aspectRatio();
if (frameAspectRatio < aspectRatio)
setHeight(computeReplacedLogicalHeightRespectingMinMaxHeight(frameSize.height() * frameAspectRatio / aspectRatio));
else if (frameAspectRatio > aspectRatio)
setWidth(computeReplacedLogicalWidthRespectingMinMaxWidth(frameSize.width() * aspectRatio / frameAspectRatio, ComputePreferred));
}
clearOverflow();
addVisualEffectOverflow();
updateLayerTransform();
invalidateBackgroundObscurationStatus();
repainter.repaintAfterLayout();
clearNeedsLayout();
}
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()));
}
