bool RenderWidget::nodeAtPoint(const HitTestRequest& request, HitTestResult& result, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction action)
{
if (request.allowsChildFrameContent() && widget() && widget()->isFrameView() && toFrameView(widget())->renderView()) {
FrameView* childFrameView = toFrameView(widget());
RenderView* childRoot = childFrameView->renderView();
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;
}
bool hadResult = result.innerNode();
bool inside = RenderReplaced::nodeAtPoint(request, result, locationInContainer, accumulatedOffset, action);
// Check to see if we are really over the widget itself (and not just in the border/padding area).
if ((inside || result.isRectBasedTest()) && !hadResult && result.innerNode() == &frameOwnerElement())
result.setIsOverWidget(contentBoxRect().contains(result.localPoint()));
return inside;
}
bool RenderWidget::requiresAcceleratedCompositing() const
{
// If this is a renderer with a contentDocument and that document needs a layer, then we need a layer.
if (Document* contentDocument = frameOwnerElement().contentDocument()) {
if (RenderView* view = contentDocument->renderView())
return view->usesCompositing();
}
return false;
}
void RenderFrameBase::peformLayoutWithFlattening(bool hasFixedWidth, bool hasFixedHeight)
{
if (!childRenderView())
return;
if (!shouldExpandFrame(width(), height(), hasFixedWidth, hasFixedHeight)) {
if (updateWidgetPosition() == ChildWidgetState::Destroyed)
return;
childView()->layout();
return;
}
// need to update to calculate min/max correctly
if (updateWidgetPosition() == ChildWidgetState::Destroyed)
return;
// if scrollbars are off, and the width or height are fixed
// we obey them and do not expand. With frame flattening
// no subframe much ever become scrollable.
bool isScrollable = frameOwnerElement().scrollingMode() != ScrollbarAlwaysOff;
// consider iframe inset border
int hBorder = borderLeft() + borderRight();
int vBorder = borderTop() + borderBottom();
// make sure minimum preferred width is enforced
if (isScrollable || !hasFixedWidth) {
ASSERT(childRenderView());
setWidth(std::max(width(), childRenderView()->minPreferredLogicalWidth() + hBorder));
// update again to pass the new width to the child frame
if (updateWidgetPosition() == ChildWidgetState::Destroyed)
return;
childView()->layout();
}
ASSERT(childView());
// expand the frame by setting frame height = content height
if (isScrollable || !hasFixedHeight || childRenderView()->isFrameSet())
setHeight(std::max<LayoutUnit>(height(), childView()->contentsHeight() + vBorder));
if (isScrollable || !hasFixedWidth || childRenderView()->isFrameSet())
setWidth(std::max<LayoutUnit>(width(), childView()->contentsWidth() + hBorder));
if (updateWidgetPosition() == ChildWidgetState::Destroyed)
return;
ASSERT(!childView()->layoutPending());
ASSERT(!childRenderView()->needsLayout());
ASSERT(!childRenderView()->firstChild() || !childRenderView()->firstChild()->firstChildSlow() || !childRenderView()->firstChild()->firstChildSlow()->needsLayout());
}