Node* nodeFromPoint(Document* document, int x, int y, LayoutPoint* localPoint)
{
Frame* frame = document->frame();
if (!frame)
return nullptr;
FrameView* frameView = frame->view();
if (!frameView)
return nullptr;
float scaleFactor = frame->pageZoomFactor() * frame->frameScaleFactor();
#if !PLATFORM(IOS)
IntPoint point = roundedIntPoint(FloatPoint(x * scaleFactor + frameView->scrollX(), y * scaleFactor + frameView->scrollY()));
if (!frameView->visibleContentRect().contains(point))
return nullptr;
#else
IntPoint point = roundedIntPoint(FloatPoint(x * scaleFactor + frameView->actualScrollX(), y * scaleFactor + frameView->actualScrollY()));
if (!frameView->actualVisibleContentRect().contains(point))
return nullptr;
#endif
HitTestRequest request(HitTestRequest::ReadOnly | HitTestRequest::Active | HitTestRequest::DisallowShadowContent);
HitTestResult result(point);
document->renderView()->hitTest(request, result);
if (localPoint)
*localPoint = result.localPoint();
return result.innerNode();
}
int HTMLBodyElement::scrollTop() const
{
// Update the document's layout.
Document* document = this->document();
document->updateLayoutIgnorePendingStylesheets();
FrameView* view = document->view();
return view ? adjustForZoom(view->actualVisibleContentRect().y(), document) : 0;
}
bool ImageDocument::imageFitsInWindow() const
{
if (!m_imageElement)
return true;
FrameView* view = frame()->view();
if (!view)
return true;
IntSize imageSize = m_imageElement->cachedImage()->imageSize(pageZoomFactor(this));
IntRect windowRect = view->contentsToScreen(view->actualVisibleContentRect());
return imageSize.width() <= windowRect.width() && imageSize.height() <= windowRect.height();
}