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846d8789ee
Various places in dom/ use the pattern: already_AddRefed<NodeInfo> ni = ...; which is supposed to be disallowed by our static analysis code, but isn't, for whatever reason. To fix our static analysis code, we need to eliminate instances of the above pattern. Unfortunately, eliminating this pattern requires restructuring how Nodes are created. Most Node subclasses take `already_AddRefed<NodeInfo>&` in their constructors, and a few accept `already_AddRefed<NodeInfo>&&`. We need to enforce the latter pattern consistently, which requires changing dozens of source files.
131 lines
4.6 KiB
C++
131 lines
4.6 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_SVGAnimationElement_h
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#define mozilla_dom_SVGAnimationElement_h
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#include "mozilla/Attributes.h"
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#include "mozilla/dom/IDTracker.h"
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#include "mozilla/dom/SVGTests.h"
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#include "nsSMILTimedElement.h"
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#include "nsSVGElement.h"
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typedef nsSVGElement SVGAnimationElementBase;
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namespace mozilla {
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namespace dom {
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enum nsSMILTargetAttrType {
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eSMILTargetAttrType_auto,
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eSMILTargetAttrType_CSS,
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eSMILTargetAttrType_XML
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};
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class SVGAnimationElement : public SVGAnimationElementBase,
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public SVGTests
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{
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protected:
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explicit SVGAnimationElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
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nsresult Init();
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virtual ~SVGAnimationElement();
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public:
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// interfaces:
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(SVGAnimationElement,
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SVGAnimationElementBase)
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virtual nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override = 0;
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// nsIContent specializations
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virtual nsresult BindToTree(nsIDocument* aDocument, nsIContent* aParent,
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nsIContent* aBindingParent) override;
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virtual void UnbindFromTree(bool aDeep, bool aNullParent) override;
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virtual bool IsNodeOfType(uint32_t aFlags) const override;
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// Element specializations
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virtual bool ParseAttribute(int32_t aNamespaceID,
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nsAtom* aAttribute,
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const nsAString& aValue,
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nsIPrincipal* aMaybeScriptedPrincipal,
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nsAttrValue& aResult) override;
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virtual nsresult AfterSetAttr(int32_t aNamespaceID, nsAtom* aName,
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const nsAttrValue* aValue,
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const nsAttrValue* aOldValue,
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nsIPrincipal* aSubjectPrincipal,
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bool aNotify) override;
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Element* GetTargetElementContent();
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virtual bool GetTargetAttributeName(int32_t* aNamespaceID,
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nsAtom** aLocalName) const;
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nsSMILTimedElement& TimedElement();
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nsSMILTimeContainer* GetTimeContainer();
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virtual nsSMILAnimationFunction& AnimationFunction() = 0;
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virtual bool IsEventAttributeNameInternal(nsAtom* aName) override;
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// Utility methods for within SVG
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void ActivateByHyperlink();
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// WebIDL
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nsSVGElement* GetTargetElement();
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float GetStartTime(ErrorResult& rv);
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float GetCurrentTime();
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float GetSimpleDuration(ErrorResult& rv);
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void BeginElement(ErrorResult& rv) { BeginElementAt(0.f, rv); }
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void BeginElementAt(float offset, ErrorResult& rv);
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void EndElement(ErrorResult& rv) { EndElementAt(0.f, rv); }
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void EndElementAt(float offset, ErrorResult& rv);
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// SVGTests
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nsSVGElement* AsSVGElement() final { return this; }
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protected:
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// nsSVGElement overrides
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void UpdateHrefTarget(const nsAString& aHrefStr);
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void AnimationTargetChanged();
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/**
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* Helper that provides a reference to the element with the ID that is
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* referenced by the animation element's 'href' attribute, if any, and that
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* will notify the animation element if the element that that ID identifies
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* changes to a different element (or none). (If the 'href' attribute is not
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* specified, then the animation target is the parent element and this helper
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* is not used.)
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*/
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class HrefTargetTracker final : public IDTracker {
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public:
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explicit HrefTargetTracker(SVGAnimationElement* aAnimationElement)
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: mAnimationElement(aAnimationElement)
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{}
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protected:
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// We need to be notified when target changes, in order to request a
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// sample (which will clear animation effects from old target and apply
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// them to the new target) and update any event registrations.
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virtual void ElementChanged(Element* aFrom, Element* aTo) override {
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IDTracker::ElementChanged(aFrom, aTo);
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mAnimationElement->AnimationTargetChanged();
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}
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// We need to override IsPersistent to get persistent tracking (beyond the
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// first time the target changes)
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virtual bool IsPersistent() override { return true; }
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private:
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SVGAnimationElement* const mAnimationElement;
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};
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HrefTargetTracker mHrefTarget;
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nsSMILTimedElement mTimedElement;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_SVGAnimationElement_h
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