1 files changed, 56 insertions, 0 deletions
diff --git a/layout/mathml/nsMathMLSelectedFrame.h b/layout/mathml/nsMathMLSelectedFrame.h
new file mode 100644
index 0000000000..34e1b288d3
--- /dev/null
+++ b/layout/mathml/nsMathMLSelectedFrame.h
@@ -0,0 +1,56 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef nsMathMLSelectedFrame_h___
+#define nsMathMLSelectedFrame_h___
+
+#include "nsMathMLContainerFrame.h"
+
+class nsMathMLSelectedFrame : public nsMathMLContainerFrame {
+ public:
+  NS_DECL_ABSTRACT_FRAME(nsMathMLSelectedFrame)
+
+  NS_IMETHOD
+  TransmitAutomaticData() override;
+
+  virtual void SetInitialChildList(ChildListID aListID,
+                                   nsFrameList& aChildList) override;
+
+  virtual nsresult ChildListChanged(int32_t aModType) override;
+
+  virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
+                                const nsDisplayListSet& aLists) override;
+
+  virtual nsresult Place(DrawTarget* aDrawTarget, bool aPlaceOrigin,
+                         ReflowOutput& aDesiredSize) override;
+
+  SizeComputationResult ComputeSize(gfxContext* aRenderingContext,
+                                    mozilla::WritingMode aWM,
+                                    const mozilla::LogicalSize& aCBSize,
+                                    nscoord aAvailableISize,
+                                    const mozilla::LogicalSize& aMargin,
+                                    const mozilla::LogicalSize& aBorderPadding,
+                                    mozilla::ComputeSizeFlags aFlags) override;
+
+  virtual void Reflow(nsPresContext* aPresContext, ReflowOutput& aDesiredSize,
+                      const ReflowInput& aReflowInput,
+                      nsReflowStatus& aStatus) override;
+
+ protected:
+  nsMathMLSelectedFrame(ComputedStyle* aStyle, nsPresContext* aPresContext,
+                        ClassID aID)
+      : nsMathMLContainerFrame(aStyle, aPresContext, aID),
+        mSelectedFrame(nullptr),
+        mInvalidMarkup(false) {}
+  virtual ~nsMathMLSelectedFrame();
+
+  virtual nsIFrame* GetSelectedFrame() = 0;
+  nsIFrame* mSelectedFrame;
+
+  bool mInvalidMarkup;
+};
+
+#endif /* nsMathMLSelectedFrame_h___ */