Ejemplos de ScrollView::convertToContainingView en C++ (Cpp)

Ejemplo n.º 1

static void accumulateRendererTouchEventTargetRects(Vector<IntRect>& rects, const RenderObject* renderer, const IntRect& parentRect = IntRect())
{
    IntRect adjustedParentRect = parentRect;
    if (parentRect.isEmpty() || renderer->isFloating() || renderer->isPositioned() || renderer->hasTransform()) {
        // FIXME: This method is O(N^2) as it walks the tree to the root for every renderer. RenderGeometryMap would fix this.
        IntRect r = enclosingIntRect(renderer->clippedOverflowRectForRepaint(0));
        if (!r.isEmpty()) {
            // Convert to the top-level view's coordinates.
            ASSERT(renderer->document()->view());
            for (ScrollView* view = renderer->document()->view(); view && view->parent(); view = view->parent())
                r = view->convertToContainingView(r);

            if (!parentRect.contains(r)) {
                rects.append(r);
                adjustedParentRect = r;
            }
        }
    }

    for (RenderObject* child = renderer->firstChild(); child; child = child->nextSibling())
        accumulateRendererTouchEventTargetRects(rects, child, adjustedParentRect);
}