void PaintPropertyTreeBuilder::walk(LayoutObject& object, const PaintPropertyTreeBuilderContext& context)
{
PaintPropertyTreeBuilderContext localContext(context);
deriveBorderBoxFromContainerContext(object, localContext);
RefPtr<TransformPaintPropertyNode> newTransformNodeForPaintOffsetTranslation = createPaintOffsetTranslationIfNeeded(object, localContext);
RefPtr<TransformPaintPropertyNode> newTransformNodeForTransform = createTransformIfNeeded(object, localContext);
RefPtr<EffectPaintPropertyNode> newEffectNode = createEffectIfNeeded(object, localContext);
RefPtr<ClipPaintPropertyNode> newClipNodeForOverflowClip = createOverflowClipIfNeeded(object, localContext);
// TODO(trchen): Insert flattening transform here, as specified by
// http://www.w3.org/TR/css3-transforms/#transform-style-property
RefPtr<TransformPaintPropertyNode> newTransformNodeForPerspective = createPerspectiveIfNeeded(object, localContext);
RefPtr<TransformPaintPropertyNode> newTransformNodeForScrollTranslation = createScrollTranslationIfNeeded(object, localContext);
updateOutOfFlowContext(object, newTransformNodeForTransform, localContext);
if (newTransformNodeForPaintOffsetTranslation || newTransformNodeForTransform || newEffectNode || newClipNodeForOverflowClip || newTransformNodeForPerspective || newTransformNodeForScrollTranslation) {
OwnPtr<ObjectPaintProperties> updatedPaintProperties = ObjectPaintProperties::create(
newTransformNodeForPaintOffsetTranslation.release(),
newTransformNodeForTransform.release(),
newEffectNode.release(),
newClipNodeForOverflowClip.release(),
newTransformNodeForPerspective.release(),
newTransformNodeForScrollTranslation.release());
object.setObjectPaintProperties(updatedPaintProperties.release());
} else {
object.clearObjectPaintProperties();
}
for (LayoutObject* child = object.slowFirstChild(); child; child = child->nextSibling()) {
if (child->isBoxModelObject() || child->isSVG())
walk(*child, localContext);
}
}
void PaintPropertyTreeBuilder::walk(LayoutBoxModelObject& object, const PaintPropertyTreeBuilderContext& context)
{
ASSERT(object.isBox() != object.isLayoutInline()); // Either or.
PaintPropertyTreeBuilderContext localContext(context);
deriveBorderBoxFromContainerContext(object, localContext);
RefPtr<TransformPaintPropertyNode> newTransformNodeForPaintOffsetTranslation = createPaintOffsetTranslationIfNeeded(object, localContext);
RefPtr<TransformPaintPropertyNode> newTransformNodeForTransform = createTransformIfNeeded(object, localContext);
RefPtr<EffectPaintPropertyNode> newEffectNode = createEffectIfNeeded(object, localContext);
RefPtr<TransformPaintPropertyNode> newTransformNodeForPerspective = createPerspectiveIfNeeded(object, localContext);
RefPtr<TransformPaintPropertyNode> newTransformNodeForScrollTranslation = createScrollTranslationIfNeeded(object, localContext);
updateOutOfFlowContext(object, localContext);
if (newTransformNodeForPaintOffsetTranslation || newTransformNodeForTransform || newEffectNode || newTransformNodeForPerspective || newTransformNodeForScrollTranslation) {
OwnPtr<ObjectPaintProperties> updatedPaintProperties = ObjectPaintProperties::create(
newTransformNodeForPaintOffsetTranslation.release(),
newTransformNodeForTransform.release(),
newEffectNode.release(),
newTransformNodeForPerspective.release(),
newTransformNodeForScrollTranslation.release());
object.setObjectPaintProperties(updatedPaintProperties.release());
} else {
object.clearObjectPaintProperties();
}
// TODO(trchen): Walk subframes for LayoutFrame.
// TODO(trchen): Implement SVG walk.
if (object.isSVGRoot()) {
return;
}
for (LayoutObject* child = object.slowFirstChild(); child; child = child->nextSibling()) {
if (child->isText())
continue;
walk(toLayoutBoxModelObject(*child), localContext);
}
}