void RenderNamedFlowFragment::updateLogicalHeight()
{
RenderRegion::updateLogicalHeight();
if (!hasAutoLogicalHeight())
return;
// We want to update the logical height based on the computed auto-height
// only after the measure cotnent layout phase when all the
// auto logical height regions have a computed auto-height.
if (m_flowThread->inMeasureContentLayoutPhase())
return;
// There may be regions with auto logical height that during the prerequisite layout phase
// did not have the chance to layout flow thread content. Because of that, these regions do not
// have a computedAutoHeight and they will not be able to fragment any flow
// thread content.
if (!hasComputedAutoHeight())
return;
LayoutUnit newLogicalHeight = computedAutoHeight() + borderAndPaddingLogicalHeight();
ASSERT(newLogicalHeight < RenderFlowThread::maxLogicalHeight());
if (newLogicalHeight > logicalHeight()) {
setLogicalHeight(newLogicalHeight);
// Recalculate position of the render block after new logical height is set.
// (needed in absolute positioning case with bottom alignment for example)
RenderRegion::updateLogicalHeight();
}
}
void RenderRegion::updateLogicalHeight()
{
RenderBlock::updateLogicalHeight();
if (!hasAutoLogicalHeight())
return;
// We want to update the logical height based on the computed auto-height
// only if the view is in the layout phase in which all the
// auto logical height regions have a computed auto-height.
if (!m_flowThread->inConstrainedLayoutPhase())
return;
// There may be regions with auto logical height that during the prerequisite layout phase
// did not have the chance to layout flow thread content. Because of that, these regions do not
// have a computedAutoHeight and they will not be able to fragment any flow
// thread content.
if (!hasComputedAutoHeight())
return;
LayoutUnit autoHeight = hasOverrideHeight() ? overrideLogicalContentHeight() : computedAutoHeight();
LayoutUnit newLogicalHeight = autoHeight + borderAndPaddingLogicalHeight();
ASSERT(newLogicalHeight < LayoutUnit::max() / 2);
if (newLogicalHeight > logicalHeight())
setLogicalHeight(newLogicalHeight);
}
LayoutUnit RenderNamedFlowFragment::pageLogicalHeight() const
{
ASSERT(isValid());
if (hasComputedAutoHeight() && m_flowThread->inMeasureContentLayoutPhase()) {
ASSERT(hasAutoLogicalHeight());
return computedAutoHeight();
}
return m_flowThread->isHorizontalWritingMode() ? contentHeight() : contentWidth();
}
LayoutUnit RenderRegion::logicalHeightOfAllFlowThreadContent() const
{
ASSERT(m_flowThread);
if (hasComputedAutoHeight() && !m_flowThread->inConstrainedLayoutPhase()) {
ASSERT(hasAutoLogicalHeight());
return computedAutoHeight();
}
return m_flowThread->isHorizontalWritingMode() ? contentHeight() : contentWidth();
}
