1 files changed, 129 insertions, 0 deletions
diff --git a/dom/svg/nsSVGAngle.h b/dom/svg/nsSVGAngle.h
new file mode 100644
index 0000000000..29b7d066a9
--- /dev/null
+++ b/dom/svg/nsSVGAngle.h
@@ -0,0 +1,129 @@
+/* -*- 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 __NS_SVGANGLE_H__
+#define __NS_SVGANGLE_H__
+
+#include "nsCOMPtr.h"
+#include "nsError.h"
+#include "nsISMILAttr.h"
+#include "mozilla/Attributes.h"
+
+class nsISupports;
+class nsSMILValue;
+class nsSVGElement;
+
+namespace mozilla {
+
+// Angle Unit Types
+static const unsigned short SVG_ANGLETYPE_UNKNOWN     = 0;
+static const unsigned short SVG_ANGLETYPE_UNSPECIFIED = 1;
+static const unsigned short SVG_ANGLETYPE_DEG         = 2;
+static const unsigned short SVG_ANGLETYPE_RAD         = 3;
+static const unsigned short SVG_ANGLETYPE_GRAD        = 4;
+
+namespace dom {
+class nsSVGOrientType;
+class SVGAngle;
+class SVGAnimatedAngle;
+class SVGAnimationElement;
+} // namespace dom
+} // namespace mozilla
+
+class nsSVGAngle
+{
+  friend class mozilla::dom::SVGAngle;
+  friend class mozilla::dom::SVGAnimatedAngle;
+
+public:
+  void Init(uint8_t aAttrEnum = 0xff,
+            float aValue = 0,
+            uint8_t aUnitType = mozilla::SVG_ANGLETYPE_UNSPECIFIED) {
+    mAnimVal = mBaseVal = aValue;
+    mAnimValUnit = mBaseValUnit = aUnitType;
+    mAttrEnum = aAttrEnum;
+    mIsAnimated = false;
+  }
+
+  nsresult SetBaseValueString(const nsAString& aValue,
+                              nsSVGElement *aSVGElement,
+                              bool aDoSetAttr);
+  void GetBaseValueString(nsAString& aValue) const;
+  void GetAnimValueString(nsAString& aValue) const;
+
+  float GetBaseValue() const
+    { return mBaseVal * GetDegreesPerUnit(mBaseValUnit); }
+  float GetAnimValue() const
+    { return mAnimVal * GetDegreesPerUnit(mAnimValUnit); }
+
+  void SetBaseValue(float aValue, nsSVGElement *aSVGElement, bool aDoSetAttr);
+  void SetAnimValue(float aValue, uint8_t aUnit, nsSVGElement *aSVGElement);
+
+  uint8_t GetBaseValueUnit() const { return mBaseValUnit; }
+  uint8_t GetAnimValueUnit() const { return mAnimValUnit; }
+  float GetBaseValInSpecifiedUnits() const { return mBaseVal; }
+  float GetAnimValInSpecifiedUnits() const { return mAnimVal; }
+
+  static nsresult ToDOMSVGAngle(nsISupports **aResult);
+  already_AddRefed<mozilla::dom::SVGAnimatedAngle>
+    ToDOMAnimatedAngle(nsSVGElement* aSVGElement);
+  // Returns a new nsISMILAttr object that the caller must delete
+  nsISMILAttr* ToSMILAttr(nsSVGElement* aSVGElement);
+
+  static float GetDegreesPerUnit(uint8_t aUnit);
+
+private:
+
+  float mAnimVal;
+  float mBaseVal;
+  uint8_t mAnimValUnit;
+  uint8_t mBaseValUnit;
+  uint8_t mAttrEnum; // element specified tracking for attribute
+  bool mIsAnimated;
+
+  void SetBaseValueInSpecifiedUnits(float aValue, nsSVGElement *aSVGElement);
+  nsresult NewValueSpecifiedUnits(uint16_t aUnitType, float aValue,
+                                  nsSVGElement *aSVGElement);
+  nsresult ConvertToSpecifiedUnits(uint16_t aUnitType, nsSVGElement *aSVGElement);
+  already_AddRefed<mozilla::dom::SVGAngle> ToDOMBaseVal(nsSVGElement* aSVGElement);
+  already_AddRefed<mozilla::dom::SVGAngle> ToDOMAnimVal(nsSVGElement* aSVGElement);
+
+public:
+  // We do not currently implemente a SMILAngle struct because in SVG 1.1 the
+  // only *animatable* attribute that takes an <angle> is 'orient', on the
+  // 'marker' element, and 'orient' must be special cased since it can also
+  // take the value 'auto', making it a more complex type.
+
+  struct SMILOrient final : public nsISMILAttr
+  {
+  public:
+    SMILOrient(mozilla::dom::nsSVGOrientType* aOrientType,
+               nsSVGAngle* aAngle,
+               nsSVGElement* aSVGElement)
+      : mOrientType(aOrientType)
+      , mAngle(aAngle)
+      , mSVGElement(aSVGElement)
+    {}
+
+    // These will stay alive because a nsISMILAttr only lives as long
+    // as the Compositing step, and DOM elements don't get a chance to
+    // die during that.
+    mozilla::dom::nsSVGOrientType* mOrientType;
+    nsSVGAngle* mAngle;
+    nsSVGElement* mSVGElement;
+
+    // nsISMILAttr methods
+    virtual nsresult ValueFromString(const nsAString& aStr,
+                                     const mozilla::dom::SVGAnimationElement* aSrcElement,
+                                     nsSMILValue& aValue,
+                                     bool& aPreventCachingOfSandwich) const override;
+    virtual nsSMILValue GetBaseValue() const override;
+    virtual void ClearAnimValue() override;
+    virtual nsresult SetAnimValue(const nsSMILValue& aValue) override;
+  };
+};
+
+#endif //__NS_SVGANGLE_H__