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7fdb378650
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
56 lines
2.0 KiB
C++
56 lines
2.0 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_SVGAnimateMotionElement_h
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#define mozilla_dom_SVGAnimateMotionElement_h
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#include "mozilla/Attributes.h"
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#include "mozilla/dom/SVGAnimationElement.h"
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#include "SVGMotionSMILAnimationFunction.h"
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nsresult NS_NewSVGAnimateMotionElement(nsIContent **aResult,
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already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
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namespace mozilla {
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namespace dom {
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class SVGAnimateMotionElement final : public SVGAnimationElement
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{
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protected:
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explicit SVGAnimateMotionElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo);
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SVGMotionSMILAnimationFunction mAnimationFunction;
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friend nsresult
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(::NS_NewSVGAnimateMotionElement(nsIContent **aResult,
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already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo));
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virtual JSObject* WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto) override;
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public:
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// nsIDOMNode specializations
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virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult,
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bool aPreallocateChildren) const override;
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// SVGAnimationElement
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virtual nsSMILAnimationFunction& AnimationFunction() override;
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virtual bool GetTargetAttributeName(int32_t *aNamespaceID,
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nsIAtom **aLocalName) const override;
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// nsSVGElement
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virtual nsIAtom* GetPathDataAttrName() const override {
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return nsGkAtoms::path;
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}
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// Utility method to let our <mpath> children tell us when they've changed,
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// so we can make sure our mAnimationFunction is marked as having changed.
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void MpathChanged() { mAnimationFunction.MpathChanged(); }
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_SVGAnimateMotionElement_h
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