1 files changed, 71 insertions, 0 deletions
diff --git a/dom/svg/SVGAnimatedClass.h b/dom/svg/SVGAnimatedClass.h
new file mode 100644
index 0000000000..bc510b1d4d
--- /dev/null
+++ b/dom/svg/SVGAnimatedClass.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 DOM_SVG_SVGANIMATEDCLASS_H_
+#define DOM_SVG_SVGANIMATEDCLASS_H_
+
+#include "nsCycleCollectionParticipant.h"
+#include "mozilla/SVGAnimatedClassOrString.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/SMILAttr.h"
+#include "mozilla/UniquePtr.h"
+
+namespace mozilla {
+
+class SMILValue;
+
+namespace dom {
+class DOMSVGAnimatedString;
+class SVGElement;
+}  // namespace dom
+
+class SVGAnimatedClass final : public SVGAnimatedClassOrString {
+ public:
+  using SVGElement = dom::SVGElement;
+
+  void Init() { mAnimVal = nullptr; }
+
+  void SetBaseValue(const nsAString& aValue, SVGElement* aSVGElement,
+                    bool aDoSetAttr) override;
+  void GetBaseValue(nsAString& aValue,
+                    const SVGElement* aSVGElement) const override;
+
+  void SetAnimValue(const nsAString& aValue, SVGElement* aSVGElement);
+  void GetAnimValue(nsAString& aResult,
+                    const SVGElement* aSVGElement) const override;
+  bool IsAnimated() const { return !!mAnimVal; }
+
+  UniquePtr<SMILAttr> ToSMILAttr(SVGElement* aSVGElement);
+
+ private:
+  UniquePtr<nsString> mAnimVal;
+
+ public:
+  struct SMILString : public SMILAttr {
+   public:
+    SMILString(SVGAnimatedClass* aVal, SVGElement* aSVGElement)
+        : mVal(aVal), mSVGElement(aSVGElement) {}
+
+    // These will stay alive because a SMILAttr only lives as long
+    // as the Compositing step, and DOM elements don't get a chance to
+    // die during that.
+    SVGAnimatedClass* mVal;
+    SVGElement* mSVGElement;
+
+    // SMILAttr methods
+    nsresult ValueFromString(const nsAString& aStr,
+                             const dom::SVGAnimationElement* aSrcElement,
+                             SMILValue& aValue,
+                             bool& aPreventCachingOfSandwich) const override;
+    SMILValue GetBaseValue() const override;
+    void ClearAnimValue() override;
+    nsresult SetAnimValue(const SMILValue& aValue) override;
+  };
+};
+
+}  // namespace mozilla
+
+#endif  // DOM_SVG_SVGANIMATEDCLASS_H_