1 files changed, 54 insertions, 17 deletions
diff --git a/layout/forms/nsFieldSetFrame.cpp b/layout/forms/nsFieldSetFrame.cpp
index befd41ee2..fc9f0571b 100644
--- a/layout/forms/nsFieldSetFrame.cpp
+++ b/layout/forms/nsFieldSetFrame.cpp
@@ -5,26 +5,22 @@
 
 #include "nsFieldSetFrame.h"
 
+#include <algorithm>
 #include "mozilla/gfx/2D.h"
+#include "mozilla/Likely.h"
+#include "mozilla/Maybe.h"
 #include "nsCSSAnonBoxes.h"
-#include "nsLayoutUtils.h"
-#include "nsLegendFrame.h"
 #include "nsCSSRendering.h"
-#include <algorithm>
-#include "nsIFrame.h"
-#include "nsPresContext.h"
-#include "mozilla/RestyleManager.h"
-#include "nsGkAtoms.h"
-#include "nsStyleConsts.h"
 #include "nsDisplayList.h"
+#include "nsGkAtoms.h"
+#include "nsIFrameInlines.h"
+#include "nsLayoutUtils.h"
+#include "nsLegendFrame.h"
 #include "nsRenderingContext.h"
-#include "nsIScrollableFrame.h"
-#include "mozilla/Likely.h"
-#include "mozilla/Maybe.h"
+#include "nsStyleConsts.h"
 
 using namespace mozilla;
 using namespace mozilla::gfx;
-using namespace mozilla::image;
 using namespace mozilla::layout;
 
 nsContainerFrame*
@@ -126,7 +122,7 @@ void
 nsDisplayFieldSetBorderBackground::Paint(nsDisplayListBuilder* aBuilder,
                                          nsRenderingContext* aCtx)
 {
-  DrawResult result = static_cast<nsFieldSetFrame*>(mFrame)->
+  image::DrawResult result = static_cast<nsFieldSetFrame*>(mFrame)->
     PaintBorder(aBuilder, *aCtx, ToReferenceFrame(), mVisibleRect);
 
   nsDisplayItemGenericImageGeometry::UpdateDrawResult(this, result);
@@ -210,7 +206,7 @@ nsFieldSetFrame::BuildDisplayList(nsDisplayListBuilder*   aBuilder,
   contentDisplayItems.MoveTo(aLists);
 }
 
-DrawResult
+image::DrawResult
 nsFieldSetFrame::PaintBorder(
   nsDisplayListBuilder* aBuilder,
   nsRenderingContext& aRenderingContext,
@@ -695,9 +691,50 @@ nsFieldSetFrame::AccessibleType()
 #endif
 
 nscoord
-nsFieldSetFrame::GetLogicalBaseline(WritingMode aWritingMode) const
+nsFieldSetFrame::GetLogicalBaseline(WritingMode aWM) const
+{
+  switch (StyleDisplay()->mDisplay) {
+    case mozilla::StyleDisplay::Grid:
+    case mozilla::StyleDisplay::InlineGrid:
+    case mozilla::StyleDisplay::Flex:
+    case mozilla::StyleDisplay::InlineFlex:
+      return BaselineBOffset(aWM, BaselineSharingGroup::eFirst,
+                             AlignmentContext::eInline);
+    default:
+      return BSize(aWM) - BaselineBOffset(aWM, BaselineSharingGroup::eLast,
+                                          AlignmentContext::eInline);
+  }
+}
+
+bool
+nsFieldSetFrame::GetVerticalAlignBaseline(WritingMode aWM,
+                                          nscoord* aBaseline) const
 {
   nsIFrame* inner = GetInner();
-  return inner->BStart(aWritingMode, GetParent()->GetSize()) +
-    inner->GetLogicalBaseline(aWritingMode);
+  MOZ_ASSERT(!inner->GetWritingMode().IsOrthogonalTo(aWM));
+  if (!inner->GetVerticalAlignBaseline(aWM, aBaseline)) {
+    return false;
+  }
+  nscoord innerBStart = inner->BStart(aWM, GetSize());
+  *aBaseline += innerBStart;
+  return true;
+}
+
+bool
+nsFieldSetFrame::GetNaturalBaselineBOffset(WritingMode          aWM,
+                                           BaselineSharingGroup aBaselineGroup,
+                                           nscoord*             aBaseline) const
+{
+  nsIFrame* inner = GetInner();
+  MOZ_ASSERT(!inner->GetWritingMode().IsOrthogonalTo(aWM));
+  if (!inner->GetNaturalBaselineBOffset(aWM, aBaselineGroup, aBaseline)) {
+    return false;
+  }
+  nscoord innerBStart = inner->BStart(aWM, GetSize());
+  if (aBaselineGroup == BaselineSharingGroup::eFirst) {
+    *aBaseline += innerBStart;
+  } else {
+    *aBaseline += BSize(aWM) - (innerBStart + inner->BSize(aWM));
+  }
+  return true;
 }