1 files changed, 91 insertions, 0 deletions
diff --git a/dom/svg/SVGGeometryProperty.cpp b/dom/svg/SVGGeometryProperty.cpp
new file mode 100644
index 0000000000..7b58221b8d
--- /dev/null
+++ b/dom/svg/SVGGeometryProperty.cpp
@@ -0,0 +1,91 @@
+/* -*- 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/. */
+
+#include "SVGGeometryProperty.h"
+#include "SVGCircleElement.h"
+#include "SVGEllipseElement.h"
+#include "SVGForeignObjectElement.h"
+#include "SVGImageElement.h"
+#include "SVGRectElement.h"
+#include "SVGUseElement.h"
+#include "nsCSSValue.h"
+
+namespace mozilla::dom::SVGGeometryProperty {
+
+nsCSSUnit SpecifiedUnitTypeToCSSUnit(uint8_t aSpecifiedUnit) {
+  switch (aSpecifiedUnit) {
+    case SVGLength_Binding::SVG_LENGTHTYPE_NUMBER:
+    case SVGLength_Binding::SVG_LENGTHTYPE_PX:
+      return nsCSSUnit::eCSSUnit_Pixel;
+
+    case SVGLength_Binding::SVG_LENGTHTYPE_MM:
+      return nsCSSUnit::eCSSUnit_Millimeter;
+
+    case SVGLength_Binding::SVG_LENGTHTYPE_CM:
+      return nsCSSUnit::eCSSUnit_Centimeter;
+
+    case SVGLength_Binding::SVG_LENGTHTYPE_IN:
+      return nsCSSUnit::eCSSUnit_Inch;
+
+    case SVGLength_Binding::SVG_LENGTHTYPE_PT:
+      return nsCSSUnit::eCSSUnit_Point;
+
+    case SVGLength_Binding::SVG_LENGTHTYPE_PC:
+      return nsCSSUnit::eCSSUnit_Pica;
+
+    case SVGLength_Binding::SVG_LENGTHTYPE_PERCENTAGE:
+      return nsCSSUnit::eCSSUnit_Percent;
+
+    case SVGLength_Binding::SVG_LENGTHTYPE_EMS:
+      return nsCSSUnit::eCSSUnit_EM;
+
+    case SVGLength_Binding::SVG_LENGTHTYPE_EXS:
+      return nsCSSUnit::eCSSUnit_XHeight;
+
+    default:
+      MOZ_ASSERT_UNREACHABLE("Unknown unit type");
+      return nsCSSUnit::eCSSUnit_Pixel;
+  }
+}
+
+nsCSSPropertyID AttrEnumToCSSPropId(const SVGElement* aElement,
+                                    uint8_t aAttrEnum) {
+  // This is a very trivial function only applied to a few elements,
+  // so we want to avoid making it virtual.
+  if (aElement->IsSVGElement(nsGkAtoms::rect)) {
+    return SVGRectElement::GetCSSPropertyIdForAttrEnum(aAttrEnum);
+  }
+  if (aElement->IsSVGElement(nsGkAtoms::circle)) {
+    return SVGCircleElement::GetCSSPropertyIdForAttrEnum(aAttrEnum);
+  }
+  if (aElement->IsSVGElement(nsGkAtoms::ellipse)) {
+    return SVGEllipseElement::GetCSSPropertyIdForAttrEnum(aAttrEnum);
+  }
+  if (aElement->IsSVGElement(nsGkAtoms::image)) {
+    return SVGImageElement::GetCSSPropertyIdForAttrEnum(aAttrEnum);
+  }
+  if (aElement->IsSVGElement(nsGkAtoms::foreignObject)) {
+    return SVGForeignObjectElement::GetCSSPropertyIdForAttrEnum(aAttrEnum);
+  }
+  if (aElement->IsSVGElement(nsGkAtoms::use)) {
+    return SVGUseElement::GetCSSPropertyIdForAttrEnum(aAttrEnum);
+  }
+  return eCSSProperty_UNKNOWN;
+}
+
+bool IsNonNegativeGeometryProperty(nsCSSPropertyID aProp) {
+  return aProp == eCSSProperty_r || aProp == eCSSProperty_rx ||
+         aProp == eCSSProperty_ry || aProp == eCSSProperty_width ||
+         aProp == eCSSProperty_height;
+}
+
+bool ElementMapsLengthsToStyle(SVGElement const* aElement) {
+  return aElement->IsAnyOfSVGElements(nsGkAtoms::rect, nsGkAtoms::circle,
+                                      nsGkAtoms::ellipse, nsGkAtoms::image,
+                                      nsGkAtoms::foreignObject, nsGkAtoms::use);
+}
+
+}  // namespace mozilla::dom::SVGGeometryProperty