void LayoutScrollbar::setPressedPart(ScrollbarPart part) {
ScrollbarPart oldPart = m_pressedPart;
Scrollbar::setPressedPart(part);
updateScrollbarPart(oldPart);
updateScrollbarPart(part);
updateScrollbarPart(ScrollbarBGPart);
updateScrollbarPart(TrackBGPart);
}
void RenderScrollbar::updateScrollbarParts(bool destroy)
{
updateScrollbarPart(ScrollbarBGPart, destroy);
updateScrollbarPart(BackButtonStartPart, destroy);
updateScrollbarPart(ForwardButtonStartPart, destroy);
updateScrollbarPart(BackTrackPart, destroy);
updateScrollbarPart(ThumbPart, destroy);
updateScrollbarPart(ForwardTrackPart, destroy);
updateScrollbarPart(BackButtonEndPart, destroy);
updateScrollbarPart(ForwardButtonEndPart, destroy);
updateScrollbarPart(TrackBGPart, destroy);
if (destroy)
return;
// See if the scrollbar's thickness changed. If so, we need to mark our owning object as needing a layout.
bool isHorizontal = orientation() == HorizontalScrollbar;
int oldThickness = isHorizontal ? height() : width();
int newThickness = 0;
RenderScrollbarPart* part = m_parts.get(ScrollbarBGPart);
if (part) {
part->layout();
newThickness = isHorizontal ? part->height() : part->width();
}
if (newThickness != oldThickness) {
setFrameRect(IntRect(x(), y(), isHorizontal ? width() : newThickness, isHorizontal ? newThickness : height()));
owningRenderer()->setChildNeedsLayout(true);
}
}
void LayoutScrollbar::setHoveredPart(ScrollbarPart part) {
if (part == m_hoveredPart)
return;
ScrollbarPart oldPart = m_hoveredPart;
m_hoveredPart = part;
updateScrollbarPart(oldPart);
updateScrollbarPart(m_hoveredPart);
updateScrollbarPart(ScrollbarBGPart);
updateScrollbarPart(TrackBGPart);
}
RenderScrollbar::RenderScrollbar(ScrollableArea* scrollableArea, ScrollbarOrientation orientation, Node* ownerNode, LocalFrame* owningFrame)
: Scrollbar(scrollableArea, orientation, RegularScrollbar, RenderScrollbarTheme::renderScrollbarTheme())
, m_owner(ownerNode)
, m_owningFrame(owningFrame)
{
ASSERT(ownerNode || owningFrame);
// FIXME: We need to do this because RenderScrollbar::styleChanged is called as soon as the scrollbar is created.
// Update the scrollbar size.
int width = 0;
int height = 0;
updateScrollbarPart(ScrollbarBGPart);
if (RenderScrollbarPart* part = m_parts.get(ScrollbarBGPart)) {
part->layout();
width = part->width();
height = part->height();
} else if (this->orientation() == HorizontalScrollbar)
width = this->width();
else
height = this->height();
setFrameRect(IntRect(0, 0, width, height));
#if ENABLE(OILPAN)
ThreadState::current()->registerPreFinalizer(*this);
#endif
}
LayoutScrollbar::LayoutScrollbar(ScrollableArea* scrollableArea,
ScrollbarOrientation orientation,
Node* ownerNode,
LocalFrame* owningFrame)
: Scrollbar(scrollableArea,
orientation,
RegularScrollbar,
nullptr,
LayoutScrollbarTheme::layoutScrollbarTheme()),
m_owner(ownerNode),
m_owningFrame(owningFrame) {
ASSERT(ownerNode || owningFrame);
// FIXME: We need to do this because LayoutScrollbar::styleChanged is called
// as soon as the scrollbar is created.
// Update the scrollbar size.
IntRect rect(0, 0, 0, 0);
updateScrollbarPart(ScrollbarBGPart);
if (LayoutScrollbarPart* part = m_parts.get(ScrollbarBGPart)) {
part->layout();
rect.setSize(flooredIntSize(part->size()));
} else if (this->orientation() == HorizontalScrollbar) {
rect.setWidth(this->width());
} else {
rect.setHeight(this->height());
}
setFrameRect(rect);
}
RenderScrollbar::RenderScrollbar(ScrollbarClient* client, ScrollbarOrientation orientation, RenderBox* renderer, Frame* owningFrame)
: Scrollbar(client, orientation, RegularScrollbar, RenderScrollbarTheme::renderScrollbarTheme())
, m_owner(renderer)
, m_owningFrame(owningFrame)
{
// FIXME: We need to do this because RenderScrollbar::styleChanged is called as soon as the scrollbar is created.
// Update the scrollbar size.
updateScrollbarPart(ScrollbarBGPart);
RenderScrollbarPart* part = m_parts.get(ScrollbarBGPart);
if (!part)
return;
part->layout();
setFrameRect(IntRect(0, 0, part->width(), part->height()));
}
void LayoutScrollbar::updateScrollbarParts(bool destroy) {
updateScrollbarPart(ScrollbarBGPart, destroy);
updateScrollbarPart(BackButtonStartPart, destroy);
updateScrollbarPart(ForwardButtonStartPart, destroy);
updateScrollbarPart(BackTrackPart, destroy);
updateScrollbarPart(ThumbPart, destroy);
updateScrollbarPart(ForwardTrackPart, destroy);
updateScrollbarPart(BackButtonEndPart, destroy);
updateScrollbarPart(ForwardButtonEndPart, destroy);
updateScrollbarPart(TrackBGPart, destroy);
if (destroy)
return;
// See if the scrollbar's thickness changed. If so, we need to mark our
// owning object as needing a layout.
bool isHorizontal = orientation() == HorizontalScrollbar;
int oldThickness = isHorizontal ? height() : width();
int newThickness = 0;
LayoutScrollbarPart* part = m_parts.get(ScrollbarBGPart);
if (part) {
part->layout();
newThickness =
(isHorizontal ? part->size().height() : part->size().width()).toInt();
}
if (newThickness != oldThickness) {
setFrameRect(
IntRect(location(), IntSize(isHorizontal ? width() : newThickness,
isHorizontal ? newThickness : height())));
if (LayoutBox* box = owningLayoutObjectWithinFrame()) {
if (box->isLayoutBlock())
toLayoutBlock(box)->notifyScrollbarThicknessChanged();
box->setChildNeedsLayout();
if (m_scrollableArea)
m_scrollableArea->setScrollCornerNeedsPaintInvalidation();
}
}
}
RenderScrollbar::RenderScrollbar(ScrollableArea* scrollableArea, ScrollbarOrientation orientation, RenderBox* renderer, Frame* owningFrame)
: Scrollbar(scrollableArea, orientation, RegularScrollbar, RenderScrollbarTheme::renderScrollbarTheme())
, m_owner(renderer)
, m_owningFrame(owningFrame)
{
// FIXME: We need to do this because RenderScrollbar::styleChanged is called as soon as the scrollbar is created.
// Update the scrollbar size.
int width = 0;
int height = 0;
updateScrollbarPart(ScrollbarBGPart);
if (RenderScrollbarPart* part = m_parts.get(ScrollbarBGPart)) {
part->layout();
width = part->width();
height = part->height();
} else if (this->orientation() == HorizontalScrollbar)
width = this->width();
else
height = this->height();
setFrameRect(IntRect(0, 0, width, height));
}
