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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_SVGANIMATIONELEMENT_H_
#define DOM_SVG_SVGANIMATIONELEMENT_H_
#include "mozilla/Attributes.h"
#include "mozilla/SMILTimedElement.h"
#include "mozilla/dom/IDTracker.h"
#include "mozilla/dom/SVGElement.h"
#include "mozilla/dom/SVGTests.h"
namespace mozilla::dom {
using SVGAnimationElementBase = SVGElement;
class SVGAnimationElement : public SVGAnimationElementBase, public SVGTests {
protected:
explicit SVGAnimationElement(
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
nsresult Init();
virtual ~SVGAnimationElement() = default;
public:
// interfaces:
NS_DECL_ISUPPORTS_INHERITED
NS_IMPL_FROMNODE_HELPER(SVGAnimationElement, IsSVGAnimationElement())
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(SVGAnimationElement,
SVGAnimationElementBase)
bool IsSVGAnimationElement() const final { return true; }
nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override = 0;
// nsIContent specializations
nsresult BindToTree(BindContext&, nsINode& aParent) override;
void UnbindFromTree(bool aNullParent) override;
// Element specializations
bool ParseAttribute(int32_t aNamespaceID, nsAtom* aAttribute,
const nsAString& aValue,
nsIPrincipal* aMaybeScriptedPrincipal,
nsAttrValue& aResult) override;
void AfterSetAttr(int32_t aNamespaceID, nsAtom* aName,
const nsAttrValue* aValue, const nsAttrValue* aOldValue,
nsIPrincipal* aSubjectPrincipal, bool aNotify) override;
Element* GetTargetElementContent();
virtual bool GetTargetAttributeName(int32_t* aNamespaceID,
nsAtom** aLocalName) const;
mozilla::SMILTimedElement& TimedElement();
mozilla::SMILTimeContainer* GetTimeContainer();
virtual SMILAnimationFunction& AnimationFunction() = 0;
bool IsEventAttributeNameInternal(nsAtom* aName) override;
// Utility methods for within SVG
void ActivateByHyperlink();
// WebIDL
SVGElement* GetTargetElement();
float GetStartTime(ErrorResult& rv);
float GetCurrentTimeAsFloat();
float GetSimpleDuration(ErrorResult& rv);
void BeginElement(ErrorResult& rv) { BeginElementAt(0.f, rv); }
void BeginElementAt(float offset, ErrorResult& rv);
void EndElement(ErrorResult& rv) { EndElementAt(0.f, rv); }
void EndElementAt(float offset, ErrorResult& rv);
// SVGTests
SVGElement* AsSVGElement() final { return this; }
protected:
// SVGElement overrides
void UpdateHrefTarget(const nsAString& aHrefStr);
void AnimationTargetChanged();
/**
* Helper that provides a reference to the element with the ID that is
* referenced by the animation element's 'href' attribute, if any, and that
* will notify the animation element if the element that that ID identifies
* changes to a different element (or none). (If the 'href' attribute is not
* specified, then the animation target is the parent element and this helper
* is not used.)
*/
class HrefTargetTracker final : public IDTracker {
public:
explicit HrefTargetTracker(SVGAnimationElement* aAnimationElement)
: mAnimationElement(aAnimationElement) {}
protected:
// We need to be notified when target changes, in order to request a
// sample (which will clear animation effects from old target and apply
// them to the new target) and update any event registrations.
void ElementChanged(Element* aFrom, Element* aTo) override {
IDTracker::ElementChanged(aFrom, aTo);
mAnimationElement->AnimationTargetChanged();
}
// We need to override IsPersistent to get persistent tracking (beyond the
// first time the target changes)
bool IsPersistent() override { return true; }
private:
SVGAnimationElement* const mAnimationElement;
};
HrefTargetTracker mHrefTarget;
mozilla::SMILTimedElement mTimedElement;
};
} // namespace mozilla::dom
#endif // DOM_SVG_SVGANIMATIONELEMENT_H_
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