IntRect RenderScrollbar::buttonRect(ScrollbarPart partType)
{
RenderScrollbarPart* partRenderer = m_parts.get(partType);
if (!partRenderer)
return IntRect();
partRenderer->layout();
bool isHorizontal = orientation() == HorizontalScrollbar;
IntSize pixelSnappedIntSize = snappedIntRect(partRenderer->frameRect()).size();
if (partType == BackButtonStartPart)
return IntRect(location(), IntSize(isHorizontal ? pixelSnappedIntSize.width() : width(), isHorizontal ? height() : pixelSnappedIntSize.height()));
if (partType == ForwardButtonEndPart)
return IntRect(isHorizontal ? x() + width() - pixelSnappedIntSize.width() : x(), isHorizontal ? y() : y() + height() - pixelSnappedIntSize.height(),
isHorizontal ? pixelSnappedIntSize.width() : width(),
isHorizontal ? height() : pixelSnappedIntSize.height());
if (partType == ForwardButtonStartPart) {
IntRect previousButton = buttonRect(BackButtonStartPart);
return IntRect(isHorizontal ? x() + previousButton.width() : x(),
isHorizontal ? y() : y() + previousButton.height(),
isHorizontal ? pixelSnappedIntSize.width() : width(),
isHorizontal ? height() : pixelSnappedIntSize.height());
}
IntRect followingButton = buttonRect(ForwardButtonEndPart);
return IntRect(isHorizontal ? x() + width() - followingButton.width() - pixelSnappedIntSize.width() : x(),
isHorizontal ? y() : y() + height() - followingButton.height() - pixelSnappedIntSize.height(),
isHorizontal ? pixelSnappedIntSize.width() : width(),
isHorizontal ? height() : pixelSnappedIntSize.height());
}
