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diff --git a/dom/svg/DOMSVGPoint.h b/dom/svg/DOMSVGPoint.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 MOZILLA_DOMSVGPOINT_H__
+#define MOZILLA_DOMSVGPOINT_H__
+
+#include "DOMSVGPointList.h"
+#include "mozilla/gfx/2D.h"
+#include "nsDebug.h"
+#include "nsISVGPoint.h"
+#include "SVGPoint.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/FloatingPoint.h"
+
+class nsSVGElement;
+
+namespace mozilla {
+
+namespace dom {
+class SVGMatrix;
+} // namespace dom
+
+/**
+ * Class DOMSVGPoint
+ *
+ * This class creates the DOM objects that wrap internal SVGPoint objects that
+ * are in an SVGPointList. It is also used to create the objects returned by
+ * SVGSVGElement.createSVGPoint() and other functions that return DOM SVGPoint
+ * objects.
+ *
+ * See the architecture comment in DOMSVGPointList.h for an overview of the
+ * important points regarding these DOM wrapper structures.
+ *
+ * See the architecture comment in DOMSVGLength.h (yes, LENGTH) for an overview
+ * of the important points regarding how this specific class works.
+ */
+class DOMSVGPoint final : public nsISVGPoint
+{
+ friend class AutoChangePointNotifier;
+
+ typedef mozilla::gfx::Point Point;
+
+public:
+ /**
+ * Generic ctor for DOMSVGPoint objects that are created for an attribute.
+ */
+ DOMSVGPoint(DOMSVGPointList *aList,
+ uint32_t aListIndex,
+ bool aIsAnimValItem)
+ : nsISVGPoint()
+ {
+ mList = aList;
+ mListIndex = aListIndex;
+ mIsAnimValItem = aIsAnimValItem;
+
+ // These shifts are in sync with the members.
+ MOZ_ASSERT(aList && aListIndex <= MaxListIndex(), "bad arg");
+
+ MOZ_ASSERT(IndexIsValid(), "Bad index for DOMSVGPoint!");
+ }
+
+ explicit DOMSVGPoint(const DOMSVGPoint *aPt = nullptr)
+ : nsISVGPoint()
+ {
+ if (aPt) {
+ mPt = aPt->ToSVGPoint();
+ }
+ }
+
+ DOMSVGPoint(float aX, float aY)
+ : nsISVGPoint()
+ {
+ mPt.mX = aX;
+ mPt.mY = aY;
+ }
+
+ explicit DOMSVGPoint(const Point& aPt)
+ : nsISVGPoint()
+ {
+ mPt.mX = aPt.x;
+ mPt.mY = aPt.y;
+ NS_ASSERTION(IsFinite(mPt.mX) && IsFinite(mPt.mX),
+ "DOMSVGPoint coords are not finite");
+ }
+
+
+ // WebIDL
+ virtual float X() override;
+ virtual void SetX(float aX, ErrorResult& rv) override;
+ virtual float Y() override;
+ virtual void SetY(float aY, ErrorResult& rv) override;
+ virtual already_AddRefed<nsISVGPoint> MatrixTransform(dom::SVGMatrix& matrix) override;
+ nsISupports* GetParentObject() override {
+ return mList;
+ }
+
+ virtual DOMSVGPoint* Copy() override {
+ return new DOMSVGPoint(this);
+ }
+
+protected:
+
+ nsSVGElement* Element() {
+ return mList->Element();
+ }
+};
+
+} // namespace mozilla
+
+#endif // MOZILLA_DOMSVGPOINT_H__