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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
138 lines
4.4 KiB
C++
138 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 HTMLBodyElement_h___
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#define HTMLBodyElement_h___
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#include "mozilla/Attributes.h"
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#include "nsGenericHTMLElement.h"
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#include "nsIDOMHTMLBodyElement.h"
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#include "nsIStyleRule.h"
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namespace mozilla {
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namespace dom {
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class OnBeforeUnloadEventHandlerNonNull;
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class HTMLBodyElement final : public nsGenericHTMLElement,
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public nsIDOMHTMLBodyElement
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{
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public:
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using Element::GetText;
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using Element::SetText;
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explicit HTMLBodyElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
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: nsGenericHTMLElement(aNodeInfo)
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{
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}
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// nsISupports
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NS_DECL_ISUPPORTS_INHERITED
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// nsIDOMHTMLBodyElement
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NS_DECL_NSIDOMHTMLBODYELEMENT
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// Event listener stuff; we need to declare only the ones we need to
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// forward to window that don't come from nsIDOMHTMLBodyElement.
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#define EVENT(name_, id_, type_, struct_) /* nothing; handled by the shim */
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#define WINDOW_EVENT_HELPER(name_, type_) \
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type_* GetOn##name_(); \
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void SetOn##name_(type_* handler);
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#define WINDOW_EVENT(name_, id_, type_, struct_) \
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WINDOW_EVENT_HELPER(name_, EventHandlerNonNull)
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#define BEFOREUNLOAD_EVENT(name_, id_, type_, struct_) \
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WINDOW_EVENT_HELPER(name_, OnBeforeUnloadEventHandlerNonNull)
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#include "mozilla/EventNameList.h" // IWYU pragma: keep
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#undef BEFOREUNLOAD_EVENT
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#undef WINDOW_EVENT
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#undef WINDOW_EVENT_HELPER
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#undef EVENT
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void GetText(DOMString& aText)
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{
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GetHTMLAttr(nsGkAtoms::text, aText);
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}
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void SetText(const nsAString& aText, ErrorResult& aError)
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{
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SetHTMLAttr(nsGkAtoms::text, aText, aError);
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}
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void GetLink(DOMString& aLink)
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{
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GetHTMLAttr(nsGkAtoms::link, aLink);
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}
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void SetLink(const nsAString& aLink, ErrorResult& aError)
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{
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SetHTMLAttr(nsGkAtoms::link, aLink, aError);
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}
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void GetVLink(DOMString& aVLink)
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{
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GetHTMLAttr(nsGkAtoms::vlink, aVLink);
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}
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void SetVLink(const nsAString& aVLink, ErrorResult& aError)
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{
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SetHTMLAttr(nsGkAtoms::vlink, aVLink, aError);
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}
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void GetALink(DOMString& aALink)
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{
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GetHTMLAttr(nsGkAtoms::alink, aALink);
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}
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void SetALink(const nsAString& aALink, ErrorResult& aError)
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{
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SetHTMLAttr(nsGkAtoms::alink, aALink, aError);
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}
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void GetBgColor(DOMString& aBgColor)
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{
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GetHTMLAttr(nsGkAtoms::bgcolor, aBgColor);
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}
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void SetBgColor(const nsAString& aBgColor, ErrorResult& aError)
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{
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SetHTMLAttr(nsGkAtoms::bgcolor, aBgColor, aError);
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}
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void GetBackground(DOMString& aBackground)
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{
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GetHTMLAttr(nsGkAtoms::background, aBackground);
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}
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void SetBackground(const nsAString& aBackground, ErrorResult& aError)
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{
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SetHTMLAttr(nsGkAtoms::background, aBackground, aError);
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}
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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 nsMapRuleToAttributesFunc GetAttributeMappingFunction() const override;
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NS_IMETHOD_(bool) IsAttributeMapped(const nsIAtom* aAttribute) const override;
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virtual already_AddRefed<nsIEditor> GetAssociatedEditor() 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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virtual bool IsEventAttributeName(nsIAtom* aName) override;
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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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/**
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* Called when an attribute has just been changed
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*/
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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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protected:
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virtual ~HTMLBodyElement();
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virtual JSObject* WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto) override;
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private:
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static void MapAttributesIntoRule(const nsMappedAttributes* aAttributes,
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GenericSpecifiedValues* aGenericData);
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};
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} // namespace dom
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} // namespace mozilla
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#endif /* HTMLBodyElement_h___ */
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