зеркало из https://github.com/mozilla/gecko-dev.git
148 строки
4.2 KiB
C++
148 строки
4.2 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_DocumentFragment_h__
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#define mozilla_dom_DocumentFragment_h__
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#include "mozilla/Attributes.h"
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#include "mozilla/dom/BorrowedAttrInfo.h"
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#include "mozilla/dom/FragmentOrElement.h"
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#include "nsIDOMDocumentFragment.h"
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#include "nsStringFwd.h"
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class nsAtom;
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class nsIDocument;
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class nsIContent;
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namespace mozilla {
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namespace dom {
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class Element;
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class DocumentFragment : public FragmentOrElement,
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public nsIDOMDocumentFragment
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{
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private:
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void Init()
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{
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MOZ_ASSERT(mNodeInfo->NodeType() == nsIDOMNode::DOCUMENT_FRAGMENT_NODE &&
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mNodeInfo->Equals(nsGkAtoms::documentFragmentNodeName,
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kNameSpaceID_None),
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"Bad NodeType in aNodeInfo");
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}
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public:
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using FragmentOrElement::GetFirstChild;
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using nsINode::QuerySelector;
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using nsINode::QuerySelectorAll;
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// Make sure bindings can see our superclass' protected GetElementById method.
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using nsINode::GetElementById;
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// nsISupports
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(DocumentFragment, FragmentOrElement)
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// interface nsIDOMNode
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NS_FORWARD_NSIDOMNODE_TO_NSINODE
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// interface nsIDOMDocumentFragment
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NS_DECL_NSIDOMDOCUMENTFRAGMENT
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explicit DocumentFragment(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo)
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: FragmentOrElement(aNodeInfo), mHost(nullptr)
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{
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Init();
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}
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explicit DocumentFragment(nsNodeInfoManager* aNodeInfoManager)
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: FragmentOrElement(aNodeInfoManager->GetNodeInfo(
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nsGkAtoms::documentFragmentNodeName,
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nullptr, kNameSpaceID_None,
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nsIDOMNode::DOCUMENT_FRAGMENT_NODE)),
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mHost(nullptr)
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{
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Init();
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}
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virtual JSObject* WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto) override;
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// nsIContent
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using nsIContent::SetAttr;
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virtual nsresult SetAttr(int32_t aNameSpaceID, nsAtom* aName,
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nsAtom* aPrefix, const nsAString& aValue,
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nsIPrincipal* aSubjectPrincipal,
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bool aNotify) override
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{
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return NS_OK;
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}
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virtual nsresult UnsetAttr(int32_t aNameSpaceID, nsAtom* aAttribute,
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bool aNotify) override
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{
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return NS_OK;
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}
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virtual const nsAttrName* GetAttrNameAt(uint32_t aIndex) const override
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{
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return nullptr;
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}
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virtual BorrowedAttrInfo GetAttrInfoAt(uint32_t aIndex) const override
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{
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return BorrowedAttrInfo(nullptr, nullptr);
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}
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virtual uint32_t GetAttrCount() const override
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{
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return 0;
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}
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virtual bool IsNodeOfType(uint32_t aFlags) const override;
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virtual nsIDOMNode* AsDOMNode() override { return this; }
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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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NS_ASSERTION(false, "Trying to bind a fragment to a tree");
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return NS_ERROR_NOT_IMPLEMENTED;
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}
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virtual void UnbindFromTree(bool aDeep, bool aNullParent) override
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{
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NS_ASSERTION(false, "Trying to unbind a fragment from a tree");
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}
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virtual Element* GetNameSpaceElement() override
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{
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return nullptr;
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}
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Element* GetHost() const { return mHost; }
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void SetHost(Element* aHost) { mHost = aHost; }
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static already_AddRefed<DocumentFragment>
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Constructor(const GlobalObject& aGlobal, ErrorResult& aRv);
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#ifdef DEBUG
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virtual void List(FILE* out, int32_t aIndent) const override;
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virtual void DumpContent(FILE* out, int32_t aIndent, bool aDumpAll) const override;
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#endif
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protected:
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virtual ~DocumentFragment()
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{
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}
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nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult,
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bool aPreallocateChildren) const override;
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nsCOMPtr<Element> mHost;
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};
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} // namespace dom
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} // namespace mozilla
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#endif // mozilla_dom_DocumentFragment_h__
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