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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
71 lines
2.3 KiB
C++
71 lines
2.3 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_SVGMaskElement_h
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#define mozilla_dom_SVGMaskElement_h
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#include "nsSVGEnum.h"
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#include "nsSVGLength2.h"
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#include "nsSVGElement.h"
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class nsSVGMaskFrame;
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nsresult NS_NewSVGMaskElement(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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//--------------------- Masks ------------------------
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typedef nsSVGElement SVGMaskElementBase;
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class SVGMaskElement final : public SVGMaskElementBase
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{
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friend class ::nsSVGMaskFrame;
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protected:
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friend nsresult (::NS_NewSVGMaskElement(nsIContent **aResult,
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already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo));
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explicit SVGMaskElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo);
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virtual JSObject* WrapNode(JSContext *cx, JS::Handle<JSObject*> aGivenProto) override;
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public:
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// nsIContent interface
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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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NS_IMETHOD_(bool) IsAttributeMapped(const nsIAtom* aAttribute) const override;
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// nsSVGSVGElement methods:
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virtual bool HasValidDimensions() const override;
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// WebIDL
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already_AddRefed<SVGAnimatedEnumeration> MaskUnits();
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already_AddRefed<SVGAnimatedEnumeration> MaskContentUnits();
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already_AddRefed<SVGAnimatedLength> X();
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already_AddRefed<SVGAnimatedLength> Y();
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already_AddRefed<SVGAnimatedLength> Width();
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already_AddRefed<SVGAnimatedLength> Height();
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protected:
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virtual LengthAttributesInfo GetLengthInfo() override;
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virtual EnumAttributesInfo GetEnumInfo() override;
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enum { ATTR_X, ATTR_Y, ATTR_WIDTH, ATTR_HEIGHT };
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nsSVGLength2 mLengthAttributes[4];
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static LengthInfo sLengthInfo[4];
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enum { MASKUNITS, MASKCONTENTUNITS };
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nsSVGEnum mEnumAttributes[2];
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static EnumInfo sEnumInfo[2];
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_SVGMaskElement_h
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