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Currently, attribute and child arrays (implemented in dom/base/nsAttrAndChildArray.h) start out empty. When cloning, the array ends up being resized multiple times in order to add the attributes and children that are being cloned from the original node. This would be quicker if the array was initialized to the correct size in the first place so that resizes are not necessary. However, preallocating space for children is only necessary when performing a deep clone. Therefore, an additional parameter is being added to the Clone, CopyInnerTo, and CloneDocHelper methods to indicate whether preallocation of children should happen. Attributes are copied either way, so that part of the array is preallocated in both cases. MozReview-Commit-ID: 3iVezeAKXnI --HG-- extra : rebase_source : 9c3deec6d7aafd6411044d623d4863637b45fd58
128 lines
4.4 KiB
C++
128 lines
4.4 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/SVGTests.h"
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#include "nsReferencedElement.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(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult,
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bool aPreallocateChildren) 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,
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bool aCompileEventHandlers) override;
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virtual void UnbindFromTree(bool aDeep, bool aNullParent) override;
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virtual nsresult UnsetAttr(int32_t aNamespaceID, nsIAtom* aAttribute,
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bool aNotify) 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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nsIAtom* aAttribute,
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const nsAString& aValue,
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nsAttrValue& aResult) override;
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virtual nsresult AfterSetAttr(int32_t aNamespaceID, nsIAtom* aName,
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const nsAttrValue* aValue, bool aNotify) override;
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const nsAttrValue* GetAnimAttr(nsIAtom* aName) const;
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bool GetAnimAttr(nsIAtom* aAttName, nsAString& aResult) const;
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bool HasAnimAttr(nsIAtom* aAttName) const;
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Element* GetTargetElementContent();
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virtual bool GetTargetAttributeName(int32_t* aNamespaceID,
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nsIAtom** 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 IsEventAttributeName(nsIAtom* 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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virtual bool IsInChromeDoc() const override;
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protected:
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// nsSVGElement overrides
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void UpdateHrefTarget(nsIContent* aNodeForContext,
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const nsAString& aHrefStr);
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void AnimationTargetChanged();
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class TargetReference : public nsReferencedElement {
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public:
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explicit TargetReference(SVGAnimationElement* aAnimationElement) :
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mAnimationElement(aAnimationElement) {}
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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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nsReferencedElement::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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TargetReference 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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