PaintInvalidationState::PaintInvalidationState(PaintInvalidationState& next, LayoutBoxModelObject& layoutObject, const LayoutBoxModelObject& paintInvalidationContainer)
: m_clipped(false)
, m_cachedOffsetsEnabled(true)
, m_forcedSubtreeInvalidationWithinContainer(next.m_forcedSubtreeInvalidationWithinContainer)
, m_forcedSubtreeInvalidationRectUpdateWithinContainer(next.m_forcedSubtreeInvalidationRectUpdateWithinContainer)
, m_viewClippingAndScrollOffsetDisabled(false)
, m_paintInvalidationContainer(paintInvalidationContainer)
, m_pendingDelayedPaintInvalidations(next.pendingDelayedPaintInvalidationTargets())
, m_enclosingSelfPaintingLayer(next.enclosingSelfPaintingLayer(layoutObject))
{
// FIXME: SVG could probably benefit from a stack-based optimization like html does. crbug.com/391054
bool establishesPaintInvalidationContainer = layoutObject == m_paintInvalidationContainer;
bool fixed = layoutObject.style()->position() == FixedPosition;
if (!layoutObject.supportsPaintInvalidationStateCachedOffsets() || !next.m_cachedOffsetsEnabled)
m_cachedOffsetsEnabled = false;
if (establishesPaintInvalidationContainer) {
// When we hit a new paint invalidation container, we don't need to
// continue forcing a check for paint invalidation, since we're
// descending into a different invalidation container. (For instance if
// our parents were moved, the entire container will just move.)
m_forcedSubtreeInvalidationWithinContainer = false;
} else {
if (m_cachedOffsetsEnabled) {
if (fixed) {
FloatPoint fixedOffset = layoutObject.localToAncestorPoint(FloatPoint(), &m_paintInvalidationContainer, TraverseDocumentBoundaries);
m_paintOffset = LayoutSize(fixedOffset.x(), fixedOffset.y());
} else {
LayoutSize offset = layoutObject.isBox() && !layoutObject.isTableRow() ? toLayoutBox(layoutObject).locationOffset() : LayoutSize();
m_paintOffset = next.m_paintOffset + offset;
}
if (layoutObject.isOutOfFlowPositioned() && !fixed) {
if (LayoutObject* container = layoutObject.container()) {
if (container->style()->hasInFlowPosition() && container->isLayoutInline())
m_paintOffset += toLayoutInline(container)->offsetForInFlowPositionedInline(toLayoutBox(layoutObject));
}
}
if (layoutObject.style()->hasInFlowPosition() && layoutObject.hasLayer())
m_paintOffset += layoutObject.layer()->offsetForInFlowPosition();
}
m_clipped = !fixed && next.m_clipped;
if (m_clipped)
m_clipRect = next.m_clipRect;
}
if (m_cachedOffsetsEnabled && layoutObject.isSVGRoot()) {
const LayoutSVGRoot& svgRoot = toLayoutSVGRoot(layoutObject);
m_svgTransform = AffineTransform(svgRoot.localToBorderBoxTransform());
if (svgRoot.shouldApplyViewportClip())
addClipRectRelativeToPaintOffset(LayoutSize(svgRoot.pixelSnappedSize()));
}
applyClipIfNeeded(layoutObject);
// FIXME: <http://bugs.webkit.org/show_bug.cgi?id=13443> Apply control clip if present.
}
AXObject* AXObjectCacheImpl::createFromRenderer(LayoutObject* layoutObject)
{
// FIXME: How could layoutObject->node() ever not be an Element?
Node* node = layoutObject->node();
// If the node is aria role="list" or the aria role is empty and its a
// ul/ol/dl type (it shouldn't be a list if aria says otherwise).
if (nodeHasRole(node, "list") || nodeHasRole(node, "directory")
|| (nodeHasRole(node, nullAtom) && (isHTMLUListElement(node) || isHTMLOListElement(node) || isHTMLDListElement(node))))
return AXList::create(layoutObject, *this);
// aria tables
if (nodeHasRole(node, "grid") || nodeHasRole(node, "treegrid"))
return AXARIAGrid::create(layoutObject, *this);
if (nodeHasRole(node, "row"))
return AXARIAGridRow::create(layoutObject, *this);
if (nodeHasRole(node, "gridcell") || nodeHasRole(node, "columnheader") || nodeHasRole(node, "rowheader"))
return AXARIAGridCell::create(layoutObject, *this);
// media controls
if (node && node->isMediaControlElement())
return AccessibilityMediaControl::create(layoutObject, *this);
if (isHTMLOptionElement(node))
return AXListBoxOption::create(layoutObject, *this);
if (layoutObject->isSVGRoot())
return AXSVGRoot::create(layoutObject, *this);
if (layoutObject->isBoxModelObject()) {
LayoutBoxModelObject* cssBox = toLayoutBoxModelObject(layoutObject);
if (cssBox->isListBox())
return AXListBox::create(toLayoutListBox(cssBox), *this);
if (cssBox->isMenuList())
return AXMenuList::create(toLayoutMenuList(cssBox), *this);
// standard tables
if (cssBox->isTable())
return AXTable::create(toLayoutTable(cssBox), *this);
if (cssBox->isTableRow())
return AXTableRow::create(toLayoutTableRow(cssBox), *this);
if (cssBox->isTableCell())
return AXTableCell::create(toLayoutTableCell(cssBox), *this);
// progress bar
if (cssBox->isProgress())
return AXProgressIndicator::create(toLayoutProgress(cssBox), *this);
// input type=range
if (cssBox->isSlider())
return AXSlider::create(toLayoutSlider(cssBox), *this);
}
return AXLayoutObject::create(layoutObject, *this);
}
