void RenderFrameBase::layoutWithFlattening(bool hasFixedWidth, bool hasFixedHeight)
{
FrameView* childFrameView = static_cast<FrameView*>(widget());
RenderView* childRoot = childFrameView ? static_cast<RenderView*>(childFrameView->frame()->contentRenderer()) : 0;
if (!childRoot || !shouldExpandFrame(width(), height(), hasFixedWidth, hasFixedHeight)) {
updateWidgetPosition();
if (childFrameView)
childFrameView->layout();
setNeedsLayout(false);
return;
}
// need to update to calculate min/max correctly
updateWidgetPosition();
if (childRoot->preferredLogicalWidthsDirty())
childRoot->computePreferredLogicalWidths();
// 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.
HTMLFrameElementBase* element = static_cast<HTMLFrameElementBase*>(node());
bool isScrollable = element->scrollingMode() != ScrollbarAlwaysOff;
// consider iframe inset border
int hBorder = borderLeft() + borderRight();
int vBorder = borderTop() + borderBottom();
// make sure minimum preferred width is enforced
if (isScrollable || !hasFixedWidth) {
setWidth(max(width(), childRoot->minPreferredLogicalWidth() + hBorder));
// update again to pass the new width to the child frame
updateWidgetPosition();
childFrameView->layout();
}
// expand the frame by setting frame height = content height
if (isScrollable || !hasFixedHeight || childRoot->isFrameSet())
setHeight(max<LayoutUnit>(height(), childFrameView->contentsHeight() + vBorder));
if (isScrollable || !hasFixedWidth || childRoot->isFrameSet())
setWidth(max<LayoutUnit>(width(), childFrameView->contentsWidth() + hBorder));
updateWidgetPosition();
ASSERT(!childFrameView->layoutPending());
ASSERT(!childRoot->needsLayout());
ASSERT(!childRoot->firstChild() || !childRoot->firstChild()->firstChild() || !childRoot->firstChild()->firstChild()->needsLayout());
setNeedsLayout(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());
}