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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
100 lines
2.7 KiB
C++
100 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_HTMLMenuElement_h
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#define mozilla_dom_HTMLMenuElement_h
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#include "mozilla/Attributes.h"
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#include "nsIDOMHTMLMenuElement.h"
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#include "nsGenericHTMLElement.h"
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class nsIMenuBuilder;
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namespace mozilla {
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namespace dom {
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class HTMLMenuElement final : public nsGenericHTMLElement,
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public nsIDOMHTMLMenuElement
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{
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public:
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explicit HTMLMenuElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo);
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NS_IMPL_FROMCONTENT_HTML_WITH_TAG(HTMLMenuElement, menu)
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// nsISupports
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NS_DECL_ISUPPORTS_INHERITED
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// nsIDOMHTMLMenuElement
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NS_DECL_NSIDOMHTMLMENUELEMENT
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nsresult AfterSetAttr(int32_t aNamespaceID, nsIAtom* aName,
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const nsAttrValue* aValue, bool aNotify) override;
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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 Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult,
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bool aPreallocateChildren) const override;
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uint8_t GetType() const { return mType; }
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// WebIDL
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// The XPCOM GetType is OK for us
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void SetType(const nsAString& aType, ErrorResult& aError)
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{
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SetHTMLAttr(nsGkAtoms::type, aType, aError);
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}
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// The XPCOM GetLabel is OK for us
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void SetLabel(const nsAString& aLabel, ErrorResult& aError)
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{
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SetHTMLAttr(nsGkAtoms::label, aLabel, aError);
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}
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bool Compact() const
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{
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return GetBoolAttr(nsGkAtoms::compact);
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}
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void SetCompact(bool aCompact, ErrorResult& aError)
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{
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SetHTMLBoolAttr(nsGkAtoms::compact, aCompact, aError);
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}
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void SendShowEvent();
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already_AddRefed<nsIMenuBuilder> CreateBuilder();
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void Build(nsIMenuBuilder* aBuilder);
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protected:
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virtual ~HTMLMenuElement();
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virtual JSObject* WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto) override;
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protected:
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static bool CanLoadIcon(nsIContent* aContent, const nsAString& aIcon);
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void BuildSubmenu(const nsAString& aLabel,
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nsIContent* aContent,
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nsIMenuBuilder* aBuilder);
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void TraverseContent(nsIContent* aContent,
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nsIMenuBuilder* aBuilder,
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int8_t& aSeparator);
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void AddSeparator(nsIMenuBuilder* aBuilder, int8_t& aSeparator);
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uint8_t mType;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_HTMLMenuElement_h
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