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33bb32f549
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find . \
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-type f \
\( -iname "*.cpp" \
-o -iname "*.h" \
-o -iname "*.c" \
-o -iname "*.cc" \
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}
convert MOZ_OVERRIDE override
convert MOZ_FINAL final
338 lines
12 KiB
C++
338 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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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/*
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* Base class for DOM Core's nsIDOMComment, nsIDOMDocumentType, nsIDOMText,
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* nsIDOMCDATASection, and nsIDOMProcessingInstruction nodes.
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*/
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#ifndef nsGenericDOMDataNode_h___
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#define nsGenericDOMDataNode_h___
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#include "mozilla/Attributes.h"
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#include "nsIContent.h"
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#include "nsTextFragment.h"
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#include "nsError.h"
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#include "mozilla/dom/Element.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsISMILAttr.h"
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#include "mozilla/dom/ShadowRoot.h"
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class nsIDocument;
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class nsIDOMAttr;
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class nsIDOMEventListener;
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class nsIDOMNodeList;
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class nsIFrame;
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class nsIDOMText;
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class nsURI;
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#define DATA_NODE_FLAG_BIT(n_) NODE_FLAG_BIT(NODE_TYPE_SPECIFIC_BITS_OFFSET + (n_))
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// Data node specific flags
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enum {
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// This bit is set to indicate that if the text node changes to
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// non-whitespace, we may need to create a frame for it. This bit must
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// not be set on nodes that already have a frame.
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NS_CREATE_FRAME_IF_NON_WHITESPACE = DATA_NODE_FLAG_BIT(0),
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// This bit is set to indicate that if the text node changes to
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// whitespace, we may need to reframe it (or its ancestors).
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NS_REFRAME_IF_WHITESPACE = DATA_NODE_FLAG_BIT(1),
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// This bit is set to indicate that we have a cached
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// TextIsOnlyWhitespace value
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NS_CACHED_TEXT_IS_ONLY_WHITESPACE = DATA_NODE_FLAG_BIT(2),
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// This bit is only meaningful if the NS_CACHED_TEXT_IS_ONLY_WHITESPACE
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// bit is set, and if so it indicates whether we're only whitespace or
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// not.
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NS_TEXT_IS_ONLY_WHITESPACE = DATA_NODE_FLAG_BIT(3),
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};
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// Make sure we have enough space for those bits
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ASSERT_NODE_FLAGS_SPACE(NODE_TYPE_SPECIFIC_BITS_OFFSET + 4);
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#undef DATA_NODE_FLAG_BIT
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class nsGenericDOMDataNode : public nsIContent
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{
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public:
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_SIZEOF_EXCLUDING_THIS
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explicit nsGenericDOMDataNode(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo);
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explicit nsGenericDOMDataNode(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
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virtual void GetNodeValueInternal(nsAString& aNodeValue) override;
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virtual void SetNodeValueInternal(const nsAString& aNodeValue,
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mozilla::ErrorResult& aError) override;
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// Implementation for nsIDOMCharacterData
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nsresult GetData(nsAString& aData) const;
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nsresult SetData(const nsAString& aData);
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nsresult GetLength(uint32_t* aLength);
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nsresult SubstringData(uint32_t aOffset, uint32_t aCount,
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nsAString& aReturn);
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nsresult AppendData(const nsAString& aArg);
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nsresult InsertData(uint32_t aOffset, const nsAString& aArg);
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nsresult DeleteData(uint32_t aOffset, uint32_t aCount);
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nsresult ReplaceData(uint32_t aOffset, uint32_t aCount,
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const nsAString& aArg);
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NS_IMETHOD MozRemove();
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// nsINode methods
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virtual uint32_t GetChildCount() const override;
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virtual nsIContent *GetChildAt(uint32_t aIndex) const override;
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virtual nsIContent * const * GetChildArray(uint32_t* aChildCount) const override;
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virtual int32_t IndexOf(const nsINode* aPossibleChild) const override;
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virtual nsresult InsertChildAt(nsIContent* aKid, uint32_t aIndex,
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bool aNotify) override;
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virtual void RemoveChildAt(uint32_t aIndex, bool aNotify) override;
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virtual void GetTextContentInternal(nsAString& aTextContent,
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mozilla::ErrorResult& aError) override
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{
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GetNodeValue(aTextContent);
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}
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virtual void SetTextContentInternal(const nsAString& aTextContent,
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mozilla::ErrorResult& aError) override
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{
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// Batch possible DOMSubtreeModified events.
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mozAutoSubtreeModified subtree(OwnerDoc(), nullptr);
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return SetNodeValue(aTextContent, aError);
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}
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// Implementation for nsIContent
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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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virtual void UnbindFromTree(bool aDeep = true,
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bool aNullParent = true) override;
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virtual already_AddRefed<nsINodeList> GetChildren(uint32_t aFilter) override;
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nsresult SetAttr(int32_t aNameSpaceID, nsIAtom* aName,
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const nsAString& aValue, bool aNotify)
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{
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return SetAttr(aNameSpaceID, aName, nullptr, aValue, aNotify);
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}
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virtual nsresult SetAttr(int32_t aNameSpaceID, nsIAtom* aAttribute,
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nsIAtom* aPrefix, const nsAString& aValue,
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bool aNotify) override;
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virtual nsresult UnsetAttr(int32_t aNameSpaceID, nsIAtom* aAttribute,
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bool aNotify) override;
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virtual const nsAttrName* GetAttrNameAt(uint32_t aIndex) const override;
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virtual uint32_t GetAttrCount() const override;
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virtual const nsTextFragment *GetText() override;
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virtual uint32_t TextLength() const override;
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virtual nsresult SetText(const char16_t* aBuffer, uint32_t aLength,
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bool aNotify) override;
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// Need to implement this here too to avoid hiding.
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nsresult SetText(const nsAString& aStr, bool aNotify)
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{
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return SetText(aStr.BeginReading(), aStr.Length(), aNotify);
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}
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virtual nsresult AppendText(const char16_t* aBuffer, uint32_t aLength,
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bool aNotify) override;
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virtual bool TextIsOnlyWhitespace() override;
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virtual bool HasTextForTranslation() override;
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virtual void AppendTextTo(nsAString& aResult) override;
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virtual bool AppendTextTo(nsAString& aResult,
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const mozilla::fallible_t&) override NS_WARN_UNUSED_RESULT;
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virtual void DestroyContent() override;
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virtual void SaveSubtreeState() override;
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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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virtual nsIContent *GetBindingParent() const override;
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virtual nsXBLBinding *GetXBLBinding() const override;
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virtual void SetXBLBinding(nsXBLBinding* aBinding,
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nsBindingManager* aOldBindingManager = nullptr) override;
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virtual mozilla::dom::ShadowRoot *GetContainingShadow() const override;
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virtual mozilla::dom::ShadowRoot *GetShadowRoot() const override;
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virtual nsTArray<nsIContent*> &DestInsertionPoints() override;
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virtual nsTArray<nsIContent*> *GetExistingDestInsertionPoints() const override;
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virtual void SetShadowRoot(mozilla::dom::ShadowRoot* aShadowRoot) override;
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virtual nsIContent *GetXBLInsertionParent() const override;
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virtual void SetXBLInsertionParent(nsIContent* aContent) override;
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virtual bool IsNodeOfType(uint32_t aFlags) const override;
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virtual bool IsLink(nsIURI** aURI) const override;
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virtual mozilla::dom::CustomElementData* GetCustomElementData() const override;
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virtual void SetCustomElementData(mozilla::dom::CustomElementData* aData) override;
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NS_IMETHOD WalkContentStyleRules(nsRuleWalker* aRuleWalker) override;
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NS_IMETHOD_(bool) IsAttributeMapped(const nsIAtom* aAttribute) const;
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virtual nsChangeHint GetAttributeChangeHint(const nsIAtom* aAttribute,
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int32_t aModType) const;
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virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, nsINode **aResult) const override
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{
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*aResult = CloneDataNode(aNodeInfo, true);
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if (!*aResult) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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NS_ADDREF(*aResult);
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return NS_OK;
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}
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nsresult SplitData(uint32_t aOffset, nsIContent** aReturn,
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bool aCloneAfterOriginal = true);
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// WebIDL API
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// Our XPCOM GetData is just fine for WebIDL
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virtual void SetData(const nsAString& aData, mozilla::ErrorResult& rv)
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{
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rv = SetData(aData);
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}
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// nsINode::Length() returns the right thing for our length attribute
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void SubstringData(uint32_t aStart, uint32_t aCount, nsAString& aReturn,
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mozilla::ErrorResult& rv);
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void AppendData(const nsAString& aData, mozilla::ErrorResult& rv)
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{
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rv = AppendData(aData);
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}
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void InsertData(uint32_t aOffset, const nsAString& aData,
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mozilla::ErrorResult& rv)
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{
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rv = InsertData(aOffset, aData);
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}
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void DeleteData(uint32_t aOffset, uint32_t aCount, mozilla::ErrorResult& rv)
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{
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rv = DeleteData(aOffset, aCount);
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}
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void ReplaceData(uint32_t aOffset, uint32_t aCount, const nsAString& aData,
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mozilla::ErrorResult& rv)
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{
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rv = ReplaceData(aOffset, aCount, aData);
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}
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//----------------------------------------
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#ifdef DEBUG
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void ToCString(nsAString& aBuf, int32_t aOffset, int32_t aLen) const;
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#endif
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NS_DECL_CYCLE_COLLECTION_SKIPPABLE_SCRIPT_HOLDER_CLASS(nsGenericDOMDataNode)
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protected:
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virtual ~nsGenericDOMDataNode();
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virtual mozilla::dom::Element* GetNameSpaceElement() override
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{
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nsINode *parent = GetParentNode();
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return parent && parent->IsElement() ? parent->AsElement() : nullptr;
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}
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/**
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* There are a set of DOM- and scripting-specific instance variables
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* that may only be instantiated when a content object is accessed
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* through the DOM. Rather than burn actual slots in the content
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* objects for each of these instance variables, we put them off
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* in a side structure that's only allocated when the content is
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* accessed through the DOM.
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*/
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class nsDataSlots : public nsINode::nsSlots
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{
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public:
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nsDataSlots();
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void Traverse(nsCycleCollectionTraversalCallback &cb);
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void Unlink();
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/**
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* The nearest enclosing content node with a binding that created us.
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* @see nsIContent::GetBindingParent
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*/
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nsIContent* mBindingParent; // [Weak]
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/**
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* @see nsIContent::GetXBLInsertionParent
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*/
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nsCOMPtr<nsIContent> mXBLInsertionParent;
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/**
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* @see nsIContent::GetContainingShadow
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*/
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nsRefPtr<mozilla::dom::ShadowRoot> mContainingShadow;
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/**
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* @see nsIContent::GetDestInsertionPoints
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*/
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nsTArray<nsIContent*> mDestInsertionPoints;
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};
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// Override from nsINode
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virtual nsINode::nsSlots* CreateSlots() override;
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nsDataSlots* DataSlots()
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{
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return static_cast<nsDataSlots*>(Slots());
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}
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nsDataSlots *GetExistingDataSlots() const
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{
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return static_cast<nsDataSlots*>(GetExistingSlots());
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}
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nsresult SplitText(uint32_t aOffset, nsIDOMText** aReturn);
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nsresult GetWholeText(nsAString& aWholeText);
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static int32_t FirstLogicallyAdjacentTextNode(nsIContent* aParent,
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int32_t aIndex);
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static int32_t LastLogicallyAdjacentTextNode(nsIContent* aParent,
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int32_t aIndex,
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uint32_t aCount);
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nsresult SetTextInternal(uint32_t aOffset, uint32_t aCount,
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const char16_t* aBuffer, uint32_t aLength,
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bool aNotify,
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CharacterDataChangeInfo::Details* aDetails = nullptr);
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/**
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* Method to clone this node. This needs to be overriden by all derived
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* classes. If aCloneText is true the text content will be cloned too.
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*
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* @param aOwnerDocument the ownerDocument of the clone
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* @param aCloneText if true the text content will be cloned too
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* @return the clone
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*/
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virtual nsGenericDOMDataNode *CloneDataNode(mozilla::dom::NodeInfo *aNodeInfo,
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bool aCloneText) const = 0;
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nsTextFragment mText;
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public:
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virtual bool OwnedOnlyByTheDOMTree() override
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{
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return GetParent() && mRefCnt.get() == 1;
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}
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virtual bool IsPurple() override
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{
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return mRefCnt.IsPurple();
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}
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virtual void RemovePurple() override
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{
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mRefCnt.RemovePurple();
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}
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private:
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already_AddRefed<nsIAtom> GetCurrentValueAtom();
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};
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#endif /* nsGenericDOMDataNode_h___ */
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