#include "config.h"
#include "RenderPart.h"
#include "Frame.h"
#include "FrameView.h"
#include "HTMLFrameElementBase.h"
#include "HitTestResult.h"
#include "PluginViewBase.h"
#include "RenderLayer.h"
#include "RenderSVGRoot.h"
#include "RenderView.h"
using namespace std;
namespace WebCore {
RenderPart::RenderPart(Element* node)
: RenderWidget(node)
{
setInline(false);
}
RenderPart::~RenderPart()
{
clearWidget();
}
void RenderPart::setWidget(PassRefPtr<Widget> widget)
{
if (widget == this->widget())
return;
RenderWidget::setWidget(widget);
viewCleared();
}
void RenderPart::viewCleared()
{
}
#if USE(ACCELERATED_COMPOSITING)
bool RenderPart::requiresLayer() const
{
if (RenderWidget::requiresLayer())
return true;
return requiresAcceleratedCompositing();
}
bool RenderPart::requiresAcceleratedCompositing() const
{
if (widget() && widget()->isPluginViewBase() && toPluginViewBase(widget())->platformLayer())
return true;
if (!node() || !node()->isFrameOwnerElement())
return false;
HTMLFrameOwnerElement* element = toFrameOwnerElement(node());
if (Document* contentDocument = element->contentDocument()) {
if (RenderView* view = contentDocument->renderView())
return view->usesCompositing();
}
return false;
}
#endif
bool RenderPart::needsPreferredWidthsRecalculation() const
{
if (RenderWidget::needsPreferredWidthsRecalculation())
return true;
return embeddedContentBox();
}
RenderBox* RenderPart::embeddedContentBox() const
{
if (!node() || !widget() || !widget()->isFrameView())
return 0;
return toFrameView(widget())->embeddedContentBox();
}
bool RenderPart::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction action)
{
if (!widget() || !widget()->isFrameView() || !request.allowsChildFrameContent())
return RenderWidget::nodeAtPoint(request, result, locationInContainer, accumulatedOffset, action);
FrameView* childFrameView = toFrameView(widget());
RenderView* childRoot = childFrameView->renderView();
if (childRoot) {
LayoutPoint adjustedLocation = accumulatedOffset + location();
LayoutPoint contentOffset = LayoutPoint(borderLeft() + paddingLeft(), borderTop() + paddingTop()) - childFrameView->scrollOffset();
HitTestLocation newHitTestLocation(locationInContainer, -adjustedLocation - contentOffset);
HitTestRequest newHitTestRequest(request.type() | HitTestRequest::ChildFrameHitTest);
HitTestResult childFrameResult(newHitTestLocation);
bool isInsideChildFrame = childRoot->hitTest(newHitTestRequest, newHitTestLocation, childFrameResult);
if (newHitTestLocation.isRectBasedTest())
result.append(childFrameResult);
else if (isInsideChildFrame)
result = childFrameResult;
if (isInsideChildFrame)
return true;
}
return RenderWidget::nodeAtPoint(request, result, locationInContainer, accumulatedOffset, action);
}
}