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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_SVGANIMATEDENUMERATION_H_
+#define DOM_SVG_SVGANIMATEDENUMERATION_H_
+
+#include "DOMSVGAnimatedEnumeration.h"
+#include "nsCycleCollectionParticipant.h"
+#include "nsError.h"
+#include "mozilla/Attributes.h"
+#include "mozilla/SMILAttr.h"
+#include "mozilla/UniquePtr.h"
+#include "mozilla/dom/SVGElement.h"
+
+class nsAtom;
+
+namespace mozilla {
+
+class SMILValue;
+
+namespace dom {
+class SVGAnimationElement;
+} // namespace dom
+
+using SVGEnumValue = uint8_t;
+
+struct SVGEnumMapping {
+ nsStaticAtom* const mKey;
+ const SVGEnumValue mVal;
+};
+
+class SVGAnimatedEnumeration {
+ public:
+ friend class AutoChangeEnumNotifier;
+ using SVGElement = dom::SVGElement;
+
+ void Init(uint8_t aAttrEnum, uint16_t aValue) {
+ mAnimVal = mBaseVal = uint8_t(aValue);
+ mAttrEnum = aAttrEnum;
+ mIsAnimated = false;
+ mIsBaseSet = false;
+ }
+
+ // Returns whether aValue corresponded to a key in our mapping (in which case
+ // we actually set the base value) or not (in which case we did not).
+ bool SetBaseValueAtom(const nsAtom* aValue, SVGElement* aSVGElement);
+ nsAtom* GetBaseValueAtom(SVGElement* aSVGElement);
+ void SetBaseValue(uint16_t aValue, SVGElement* aSVGElement, ErrorResult& aRv);
+ uint16_t GetBaseValue() const { return mBaseVal; }
+
+ void SetAnimValue(uint16_t aValue, SVGElement* aSVGElement);
+ uint16_t GetAnimValue() const { return mAnimVal; }
+ bool IsExplicitlySet() const { return mIsAnimated || mIsBaseSet; }
+
+ already_AddRefed<dom::DOMSVGAnimatedEnumeration> ToDOMAnimatedEnum(
+ SVGElement* aSVGElement);
+
+ UniquePtr<SMILAttr> ToSMILAttr(SVGElement* aSVGElement);
+
+ private:
+ SVGEnumValue mAnimVal;
+ SVGEnumValue mBaseVal;
+ uint8_t mAttrEnum; // element specified tracking for attribute
+ bool mIsAnimated;
+ bool mIsBaseSet;
+
+ const SVGEnumMapping* GetMapping(SVGElement* aSVGElement);
+
+ public:
+ // DOM wrapper class for the (DOM)SVGAnimatedEnumeration interface where the
+ // wrapped class is SVGAnimatedEnumeration.
+ struct DOMAnimatedEnum final : public dom::DOMSVGAnimatedEnumeration {
+ DOMAnimatedEnum(SVGAnimatedEnumeration* aVal, SVGElement* aSVGElement)
+ : dom::DOMSVGAnimatedEnumeration(aSVGElement), mVal(aVal) {}
+ virtual ~DOMAnimatedEnum();
+
+ SVGAnimatedEnumeration* mVal; // kept alive because it belongs to content
+
+ using dom::DOMSVGAnimatedEnumeration::SetBaseVal;
+ uint16_t BaseVal() override { return mVal->GetBaseValue(); }
+ void SetBaseVal(uint16_t aBaseVal, ErrorResult& aRv) override {
+ mVal->SetBaseValue(aBaseVal, mSVGElement, aRv);
+ }
+ uint16_t AnimVal() override {
+ // Script may have modified animation parameters or timeline -- DOM
+ // getters need to flush any resample requests to reflect these
+ // modifications.
+ mSVGElement->FlushAnimations();
+ return mVal->GetAnimValue();
+ }
+ };
+
+ struct SMILEnum : public SMILAttr {
+ public:
+ SMILEnum(SVGAnimatedEnumeration* 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.
+ SVGAnimatedEnumeration* 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_SVGANIMATEDENUMERATION_H_