PaintInvalidationState::PaintInvalidationState(const LayoutView& layoutView, Vector<LayoutObject*>& pendingDelayedPaintInvalidations, PaintInvalidationState* ownerPaintInvalidationState)
: m_clipped(false)
, m_cachedOffsetsEnabled(true)
, m_forcedSubtreeInvalidationWithinContainer(false)
, m_forcedSubtreeInvalidationRectUpdateWithinContainer(false)
, m_viewClippingAndScrollOffsetDisabled(false)
, m_paintInvalidationContainer(layoutView.containerForPaintInvalidation())
, m_pendingDelayedPaintInvalidations(pendingDelayedPaintInvalidations)
, m_enclosingSelfPaintingLayer(*layoutView.layer())
{
bool establishesPaintInvalidationContainer = layoutView == m_paintInvalidationContainer;
if (!establishesPaintInvalidationContainer) {
if ((ownerPaintInvalidationState && !ownerPaintInvalidationState->m_cachedOffsetsEnabled)
|| !layoutView.supportsPaintInvalidationStateCachedOffsets()) {
m_cachedOffsetsEnabled = false;
return;
}
if (ownerPaintInvalidationState && ownerPaintInvalidationState->m_forcedSubtreeInvalidationWithinContainer)
m_forcedSubtreeInvalidationWithinContainer = true;
FloatPoint point = layoutView.localToAncestorPoint(FloatPoint(), &m_paintInvalidationContainer, TraverseDocumentBoundaries);
m_paintOffset = LayoutSize(point.x(), point.y());
}
m_clipRect = layoutView.viewRect();
m_clipRect.move(m_paintOffset);
m_clipped = true;
}
PaintInvalidationState::PaintInvalidationState(const LayoutView& layoutView, Vector<LayoutObject*>& pendingDelayedPaintInvalidations, PaintInvalidationState* ownerPaintInvalidationState)
: m_clipped(false)
, m_cachedOffsetsEnabled(true)
, m_ancestorHadPaintInvalidationForLocationChange(false)
, m_paintInvalidationContainer(*layoutView.containerForPaintInvalidation())
, m_pendingDelayedPaintInvalidations(pendingDelayedPaintInvalidations)
{
bool establishesPaintInvalidationContainer = layoutView == m_paintInvalidationContainer;
if (!establishesPaintInvalidationContainer) {
if ((ownerPaintInvalidationState && !ownerPaintInvalidationState->m_cachedOffsetsEnabled)
|| !layoutView.supportsPaintInvalidationStateCachedOffsets()) {
m_cachedOffsetsEnabled = false;
return;
}
if (ownerPaintInvalidationState && ownerPaintInvalidationState->m_ancestorHadPaintInvalidationForLocationChange)
m_ancestorHadPaintInvalidationForLocationChange = true;
FloatPoint point = layoutView.localToContainerPoint(FloatPoint(), &m_paintInvalidationContainer, TraverseDocumentBoundaries);
m_paintOffset = LayoutSize(point.x(), point.y());
}
m_clipRect = layoutView.viewRect();
m_clipRect.move(m_paintOffset);
m_clipped = true;
}
