Exemplo n.º 1
0
void LayoutScrollbar::setParent(Widget* parent) {
  Scrollbar::setParent(parent);
  if (!parent) {
    // Destroy all of the scrollbar's LayoutBoxes.
    updateScrollbarParts(true);
  }
}
void RenderScrollbar::setEnabled(bool e)
{
    bool wasEnabled = enabled();
    Scrollbar::setEnabled(e);
    if (wasEnabled != e)
        updateScrollbarParts();
}
void RenderScrollbar::setParent(ScrollView* parent)
{
    Scrollbar::setParent(parent);
    if (!parent) {
        // Destroy all of the scrollbar's RenderBoxes.
        updateScrollbarParts(true);
    }
}
void RenderScrollbar::paint(GraphicsContext* context, const IntRect& damageRect)
{
    if (context->updatingControlTints()) {
        updateScrollbarParts();
        return;
    }
    Scrollbar::paint(context, damageRect);
}
RenderScrollbar::~RenderScrollbar()
{
    if (!m_parts.isEmpty()) {
        // When a scrollbar is detached from its parent (causing all parts removal) and 
        // ready to be destroyed, its destruction can be delayed because of RefPtr
        // maintained in other classes such as EventHandler (m_lastScrollbarUnderMouse).
        // Meanwhile, we can have a call to updateScrollbarPart which recreates the 
        // scrollbar part. So, we need to destroy these parts since we don't want them
        // to call on a destroyed scrollbar. See webkit bug 68009.
        updateScrollbarParts(true);
    }
}
void RenderScrollbar::styleChanged()
{
    updateScrollbarParts();
}
Exemplo n.º 7
0
void LayoutScrollbar::styleChanged() {
  updateScrollbarParts();
}