C++ (Cpp) FrameView::finishCurrentScrollAnimations Beispiele

Beispiel #1

void Page::setShouldSuppressScrollbarAnimations(bool suppressAnimations)
{
    if (suppressAnimations == m_suppressScrollbarAnimations)
        return;

    if (!suppressAnimations) {
        // If animations are not going to be suppressed anymore, then there is nothing to do here but
        // change the cached value.
        m_suppressScrollbarAnimations = suppressAnimations;
        return;
    }

    // On the other hand, if we are going to start suppressing animations, then we need to make sure we
    // finish any current scroll animations first.
    FrameView* view = mainFrame()->view();
    if (!view)
        return;

    view->finishCurrentScrollAnimations();
    
    for (Frame* frame = mainFrame(); frame; frame = frame->tree()->traverseNext()) {
        FrameView* frameView = frame->view();
        if (!frameView)
            continue;

        const HashSet<ScrollableArea*>* scrollableAreas = frameView->scrollableAreas();
        if (!scrollableAreas)
            continue;

        for (HashSet<ScrollableArea*>::const_iterator it = scrollableAreas->begin(), end = scrollableAreas->end(); it != end; ++it) {
            ScrollableArea* scrollableArea = *it;
            ASSERT(scrollableArea->scrollbarsCanBeActive());

            scrollableArea->finishCurrentScrollAnimations();
        }
    }

    m_suppressScrollbarAnimations = suppressAnimations;
}