1 files changed, 61 insertions, 0 deletions
diff --git a/dom/svg/SVGLineElement.h b/dom/svg/SVGLineElement.h
new file mode 100644
index 0000000000..38b6810fc2
--- /dev/null
+++ b/dom/svg/SVGLineElement.h
@@ -0,0 +1,61 @@
+/* -*- 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 DOM_SVG_SVGLINEELEMENT_H_
+#define DOM_SVG_SVGLINEELEMENT_H_
+
+#include "SVGAnimatedLength.h"
+#include "SVGGeometryElement.h"
+
+nsresult NS_NewSVGLineElement(
+    nsIContent** aResult, already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
+
+namespace mozilla::dom {
+
+using SVGLineElementBase = SVGGeometryElement;
+
+class SVGLineElement final : public SVGLineElementBase {
+ protected:
+  explicit SVGLineElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
+  JSObject* WrapNode(JSContext* cx, JS::Handle<JSObject*> aGivenProto) override;
+  friend nsresult(::NS_NewSVGLineElement(
+      nsIContent** aResult,
+      already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo));
+  // If the input line has length zero and linecaps aren't butt, adjust |aX2| by
+  // a tiny amount to a barely-nonzero-length line that all of our draw targets
+  // will render
+  void MaybeAdjustForZeroLength(float aX1, float aY1, float& aX2, float aY2);
+
+ public:
+  // SVGGeometryElement methods:
+  bool IsMarkable() override { return true; }
+  void GetMarkPoints(nsTArray<SVGMark>* aMarks) override;
+  void GetAsSimplePath(SimplePath* aSimplePath) override;
+  already_AddRefed<Path> BuildPath(PathBuilder* aBuilder) override;
+  bool GetGeometryBounds(
+      Rect* aBounds, const StrokeOptions& aStrokeOptions,
+      const Matrix& aToBoundsSpace,
+      const Matrix* aToNonScalingStrokeSpace = nullptr) override;
+
+  nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;
+
+  // WebIDL
+  already_AddRefed<DOMSVGAnimatedLength> X1();
+  already_AddRefed<DOMSVGAnimatedLength> Y1();
+  already_AddRefed<DOMSVGAnimatedLength> X2();
+  already_AddRefed<DOMSVGAnimatedLength> Y2();
+
+ protected:
+  LengthAttributesInfo GetLengthInfo() override;
+
+  enum { ATTR_X1, ATTR_Y1, ATTR_X2, ATTR_Y2 };
+  SVGAnimatedLength mLengthAttributes[4];
+  static LengthInfo sLengthInfo[4];
+};
+
+}  // namespace mozilla::dom
+
+#endif  // DOM_SVG_SVGLINEELEMENT_H_