1 files changed, 52 insertions, 0 deletions
diff --git a/layout/svg/SVGViewportFrame.h b/layout/svg/SVGViewportFrame.h
new file mode 100644
index 0000000000..9c6b23289f
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+++ b/layout/svg/SVGViewportFrame.h
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+/* -*- 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 LAYOUT_SVG_SVGVIEWPORTFRAME_H_
+#define LAYOUT_SVG_SVGVIEWPORTFRAME_H_
+
+#include "mozilla/Attributes.h"
+#include "mozilla/ISVGSVGFrame.h"
+#include "mozilla/SVGContainerFrame.h"
+
+class gfxContext;
+
+namespace mozilla {
+
+/**
+ * Superclass for inner SVG frames and symbol frames.
+ */
+class SVGViewportFrame : public SVGDisplayContainerFrame, public ISVGSVGFrame {
+ protected:
+  SVGViewportFrame(ComputedStyle* aStyle, nsPresContext* aPresContext,
+                   nsIFrame::ClassID aID)
+      : SVGDisplayContainerFrame(aStyle, aPresContext, aID) {}
+
+ public:
+  NS_DECL_ABSTRACT_FRAME(SVGViewportFrame)
+
+  nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
+                            int32_t aModType) override;
+
+  // ISVGDisplayableFrame interface:
+  void PaintSVG(gfxContext& aContext, const gfxMatrix& aTransform,
+                imgDrawingParams& aImgParams,
+                const nsIntRect* aDirtyRect = nullptr) override;
+  void ReflowSVG() override;
+  void NotifySVGChanged(uint32_t aFlags) override;
+  SVGBBox GetBBoxContribution(const Matrix& aToBBoxUserspace,
+                              uint32_t aFlags) override;
+  nsIFrame* GetFrameForPoint(const gfxPoint& aPoint) override;
+
+  // SVGContainerFrame methods:
+  bool HasChildrenOnlyTransform(Matrix* aTransform) const override;
+
+  // ISVGSVGFrame interface:
+  void NotifyViewportOrTransformChanged(uint32_t aFlags) override;
+};
+
+}  // namespace mozilla
+
+#endif  // LAYOUT_SVG_SVGVIEWPORTFRAME_H_