void RootFrameViewport::setScrollOffset(const ScrollOffset& offset,
ScrollType scrollType,
ScrollBehavior scrollBehavior) {
updateScrollAnimator();
if (scrollBehavior == ScrollBehaviorAuto)
scrollBehavior = scrollBehaviorStyle();
if (scrollType == ProgrammaticScroll &&
!layoutViewport().isProgrammaticallyScrollable())
return;
if (scrollType == AnchoringScroll) {
distributeScrollBetweenViewports(offset, scrollType, scrollBehavior,
LayoutViewport);
return;
}
if (scrollBehavior == ScrollBehaviorSmooth) {
distributeScrollBetweenViewports(offset, scrollType, scrollBehavior,
VisualViewport);
return;
}
ScrollOffset clampedOffset = clampScrollOffset(offset);
ScrollableArea::setScrollOffset(clampedOffset, scrollType, scrollBehavior);
}
void RootFrameViewport::setScrollPosition(const DoublePoint& position, ScrollType scrollType, ScrollBehavior scrollBehavior)
{
updateScrollAnimator();
if (scrollBehavior == ScrollBehaviorAuto)
scrollBehavior = scrollBehaviorStyle();
if (scrollType == ProgrammaticScroll && !layoutViewport().isProgrammaticallyScrollable())
return;
if (scrollBehavior == ScrollBehaviorSmooth) {
distributeScrollBetweenViewports(position, scrollType, scrollBehavior);
return;
}
DoublePoint clampedPosition = clampScrollPosition(position);
ScrollableArea::setScrollPosition(clampedPosition, scrollType, scrollBehavior);
}
void RootFrameViewport::updateScrollOffset(const ScrollOffset& offset,
ScrollType scrollType) {
distributeScrollBetweenViewports(offset, scrollType, ScrollBehaviorInstant,
VisualViewport);
}
void RootFrameViewport::setScrollOffset(const DoublePoint& offset, ScrollType scrollType)
{
distributeScrollBetweenViewports(DoublePoint(offset), scrollType, ScrollBehaviorInstant);
}