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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
83 lines
2.7 KiB
C++
83 lines
2.7 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_SVGViewElement_h
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#define mozilla_dom_SVGViewElement_h
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#include "nsSVGElement.h"
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#include "nsSVGEnum.h"
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#include "nsSVGViewBox.h"
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#include "SVGAnimatedPreserveAspectRatio.h"
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#include "SVGStringList.h"
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static const unsigned short SVG_ZOOMANDPAN_UNKNOWN = 0;
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static const unsigned short SVG_ZOOMANDPAN_DISABLE = 1;
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static const unsigned short SVG_ZOOMANDPAN_MAGNIFY = 2;
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typedef nsSVGElement SVGViewElementBase;
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class nsSVGOuterSVGFrame;
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nsresult NS_NewSVGViewElement(nsIContent **aResult,
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already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
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namespace mozilla {
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class SVGFragmentIdentifier;
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namespace dom {
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class SVGSVGElement;
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class SVGViewElement : public SVGViewElementBase
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{
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protected:
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friend class mozilla::SVGFragmentIdentifier;
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friend class SVGSVGElement;
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friend class ::nsSVGOuterSVGFrame;
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explicit SVGViewElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo);
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friend nsresult (::NS_NewSVGViewElement(nsIContent **aResult,
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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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virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult,
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bool aPreallocateChildren) const override;
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// WebIDL
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uint16_t ZoomAndPan() { return mEnumAttributes[ZOOMANDPAN].GetAnimValue(); }
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void SetZoomAndPan(uint16_t aZoomAndPan, ErrorResult& rv);
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already_AddRefed<SVGAnimatedRect> ViewBox();
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already_AddRefed<DOMSVGAnimatedPreserveAspectRatio> PreserveAspectRatio();
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already_AddRefed<DOMSVGStringList> ViewTarget();
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private:
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// nsSVGElement overrides
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virtual EnumAttributesInfo GetEnumInfo() override;
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enum { ZOOMANDPAN };
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nsSVGEnum mEnumAttributes[1];
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static nsSVGEnumMapping sZoomAndPanMap[];
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static EnumInfo sEnumInfo[1];
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virtual nsSVGViewBox *GetViewBox() override;
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virtual SVGAnimatedPreserveAspectRatio *GetPreserveAspectRatio() override;
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nsSVGViewBox mViewBox;
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SVGAnimatedPreserveAspectRatio mPreserveAspectRatio;
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virtual StringListAttributesInfo GetStringListInfo() override;
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enum { VIEW_TARGET };
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SVGStringList mStringListAttributes[1];
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static StringListInfo sStringListInfo[1];
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_SVGViewElement_h
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