зеркало из https://github.com/mozilla/gecko-dev.git
456 строки
20 KiB
C++
456 строки
20 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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#ifndef HTMLEditRules_h
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#define HTMLEditRules_h
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#include "TypeInState.h"
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#include "mozilla/SelectionState.h"
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#include "mozilla/TextEditRules.h"
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#include "nsCOMPtr.h"
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#include "nsIEditActionListener.h"
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#include "nsIEditor.h"
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#include "nsIHTMLEditor.h"
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#include "nsISupportsImpl.h"
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#include "nsTArray.h"
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#include "nscore.h"
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class nsIAtom;
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class nsIDOMCharacterData;
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class nsIDOMDocument;
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class nsIDOMElement;
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class nsIDOMNode;
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class nsIEditor;
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class nsINode;
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class nsRange;
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namespace mozilla {
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class EditActionResult;
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class HTMLEditor;
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class RulesInfo;
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class TextEditor;
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struct EditorDOMPoint;
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namespace dom {
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class Element;
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class Selection;
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} // namespace dom
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struct StyleCache final : public PropItem
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{
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bool mPresent;
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StyleCache()
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: PropItem()
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, mPresent(false)
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{
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MOZ_COUNT_CTOR(StyleCache);
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}
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StyleCache(nsIAtom* aTag,
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const nsAString& aAttr,
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const nsAString& aValue)
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: PropItem(aTag, aAttr, aValue)
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, mPresent(false)
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{
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MOZ_COUNT_CTOR(StyleCache);
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}
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StyleCache(nsIAtom* aTag,
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const nsAString& aAttr)
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: PropItem(aTag, aAttr, EmptyString())
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, mPresent(false)
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{
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MOZ_COUNT_CTOR(StyleCache);
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}
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~StyleCache()
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{
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MOZ_COUNT_DTOR(StyleCache);
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}
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};
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#define SIZE_STYLE_TABLE 19
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class HTMLEditRules : public TextEditRules
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, public nsIEditActionListener
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{
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public:
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NS_DECL_ISUPPORTS_INHERITED
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NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(HTMLEditRules, TextEditRules)
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HTMLEditRules();
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// nsIEditRules methods
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NS_IMETHOD Init(TextEditor* aTextEditor) override;
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NS_IMETHOD DetachEditor() override;
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NS_IMETHOD BeforeEdit(EditAction action,
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nsIEditor::EDirection aDirection) override;
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NS_IMETHOD AfterEdit(EditAction action,
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nsIEditor::EDirection aDirection) override;
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NS_IMETHOD WillDoAction(Selection* aSelection, RulesInfo* aInfo,
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bool* aCancel, bool* aHandled) override;
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NS_IMETHOD DidDoAction(Selection* aSelection, RulesInfo* aInfo,
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nsresult aResult) override;
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NS_IMETHOD DocumentModified() override;
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nsresult GetListState(bool* aMixed, bool* aOL, bool* aUL, bool* aDL);
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nsresult GetListItemState(bool* aMixed, bool* aLI, bool* aDT, bool* aDD);
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nsresult GetIndentState(bool* aCanIndent, bool* aCanOutdent);
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nsresult GetAlignment(bool* aMixed, nsIHTMLEditor::EAlignment* aAlign);
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nsresult GetParagraphState(bool* aMixed, nsAString& outFormat);
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nsresult MakeSureElemStartsOrEndsOnCR(nsINode& aNode);
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// nsIEditActionListener methods
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NS_IMETHOD WillCreateNode(const nsAString& aTag, nsIDOMNode* aParent,
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int32_t aPosition) override;
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NS_IMETHOD DidCreateNode(const nsAString& aTag, nsIDOMNode* aNode,
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nsIDOMNode* aParent, int32_t aPosition,
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nsresult aResult) override;
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NS_IMETHOD WillInsertNode(nsIDOMNode* aNode, nsIDOMNode* aParent,
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int32_t aPosition) override;
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NS_IMETHOD DidInsertNode(nsIDOMNode* aNode, nsIDOMNode* aParent,
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int32_t aPosition, nsresult aResult) override;
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NS_IMETHOD WillDeleteNode(nsIDOMNode* aChild) override;
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NS_IMETHOD DidDeleteNode(nsIDOMNode* aChild, nsresult aResult) override;
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NS_IMETHOD WillSplitNode(nsIDOMNode* aExistingRightNode,
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int32_t aOffset) override;
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NS_IMETHOD DidSplitNode(nsIDOMNode* aExistingRightNode, int32_t aOffset,
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nsIDOMNode* aNewLeftNode, nsresult aResult) override;
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NS_IMETHOD WillJoinNodes(nsIDOMNode* aLeftNode, nsIDOMNode* aRightNode,
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nsIDOMNode* aParent) override;
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NS_IMETHOD DidJoinNodes(nsIDOMNode* aLeftNode, nsIDOMNode* aRightNode,
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nsIDOMNode* aParent, nsresult aResult) override;
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NS_IMETHOD WillInsertText(nsIDOMCharacterData* aTextNode, int32_t aOffset,
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const nsAString &aString) override;
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NS_IMETHOD DidInsertText(nsIDOMCharacterData* aTextNode, int32_t aOffset,
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const nsAString &aString, nsresult aResult) override;
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NS_IMETHOD WillDeleteText(nsIDOMCharacterData* aTextNode, int32_t aOffset,
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int32_t aLength) override;
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NS_IMETHOD DidDeleteText(nsIDOMCharacterData* aTextNode, int32_t aOffset,
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int32_t aLength, nsresult aResult) override;
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NS_IMETHOD WillDeleteSelection(nsISelection* aSelection) override;
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NS_IMETHOD DidDeleteSelection(nsISelection* aSelection) override;
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void DeleteNodeIfCollapsedText(nsINode& aNode);
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protected:
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virtual ~HTMLEditRules();
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enum RulesEndpoint
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{
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kStart,
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kEnd
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};
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void InitFields();
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void WillInsert(Selection& aSelection, bool* aCancel);
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nsresult WillInsertText(EditAction aAction,
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Selection* aSelection,
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bool* aCancel,
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bool* aHandled,
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const nsAString* inString,
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nsAString* outString,
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int32_t aMaxLength);
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nsresult WillLoadHTML(Selection* aSelection, bool* aCancel);
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nsresult WillInsertBreak(Selection& aSelection, bool* aCancel,
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bool* aHandled);
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nsresult StandardBreakImpl(nsINode& aNode, int32_t aOffset,
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Selection& aSelection);
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nsresult DidInsertBreak(Selection* aSelection, nsresult aResult);
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nsresult SplitMailCites(Selection* aSelection, bool* aHandled);
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nsresult WillDeleteSelection(Selection* aSelection,
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nsIEditor::EDirection aAction,
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nsIEditor::EStripWrappers aStripWrappers,
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bool* aCancel, bool* aHandled);
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nsresult DidDeleteSelection(Selection* aSelection,
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nsIEditor::EDirection aDir,
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nsresult aResult);
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nsresult InsertBRIfNeeded(Selection* aSelection);
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mozilla::EditorDOMPoint GetGoodSelPointForNode(nsINode& aNode,
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nsIEditor::EDirection aAction);
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/**
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* TryToJoinBlocks() tries to join two block elements. The right element is
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* always joined to the left element. If the elements are the same type and
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* not nested within each other, JoinNodesSmart() is called (example, joining
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* two list items together into one). If the elements are not the same type,
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* or one is a descendant of the other, we instead destroy the right block
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* placing its children into leftblock. DTD containment rules are followed
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* throughout.
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*
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* @return Sets canceled to true if the operation should do
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* nothing anymore even if this doesn't join the blocks.
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* Sets handled to true if this actually handles the
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* request. Note that this may set it to true even if this
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* does not join the block. E.g., if the blocks shouldn't
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* be joined or it's impossible to join them but it's not
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* unexpected case, this returns true with this.
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*/
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EditActionResult TryToJoinBlocks(nsIContent& aLeftNode,
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nsIContent& aRightNode);
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/**
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* MoveBlock() moves the content from aRightBlock starting from aRightOffset
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* into aLeftBlock at aLeftOffset. Note that the "block" can be inline nodes
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* between <br>s, or between blocks, etc. DTD containment rules are followed
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* throughout.
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*
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* @return Sets handled to true if this actually joins the nodes.
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* canceled is always false.
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*/
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EditActionResult MoveBlock(Element& aLeftBlock, Element& aRightBlock,
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int32_t aLeftOffset, int32_t aRightOffset);
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/**
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* MoveNodeSmart() moves aNode to (aDestElement, aInOutDestOffset).
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* DTD containment rules are followed throughout.
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*
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* @param aOffset returns the point after inserted content.
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* @return Sets true to handled if this actually moves
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* the nodes.
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* canceled is always false.
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*/
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EditActionResult MoveNodeSmart(nsIContent& aNode, Element& aDestElement,
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int32_t* aInOutDestOffset);
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/**
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* MoveContents() moves the contents of aElement to (aDestElement,
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* aInOutDestOffset). DTD containment rules are followed throughout.
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*
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* @param aInOutDestOffset updated to point after inserted content.
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* @return Sets true to handled if this actually moves
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* the nodes.
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* canceled is always false.
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*/
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EditActionResult MoveContents(Element& aElement, Element& aDestElement,
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int32_t* aInOutDestOffset);
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nsresult DeleteNonTableElements(nsINode* aNode);
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nsresult WillMakeList(Selection* aSelection,
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const nsAString* aListType,
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bool aEntireList,
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const nsAString* aBulletType,
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bool* aCancel, bool* aHandled,
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const nsAString* aItemType = nullptr);
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nsresult WillRemoveList(Selection* aSelection, bool aOrdered, bool* aCancel,
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bool* aHandled);
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nsresult WillIndent(Selection* aSelection, bool* aCancel, bool* aHandled);
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nsresult WillCSSIndent(Selection* aSelection, bool* aCancel, bool* aHandled);
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nsresult WillHTMLIndent(Selection* aSelection, bool* aCancel,
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bool* aHandled);
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nsresult WillOutdent(Selection& aSelection, bool* aCancel, bool* aHandled);
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nsresult WillAlign(Selection& aSelection, const nsAString& aAlignType,
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bool* aCancel, bool* aHandled);
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nsresult WillAbsolutePosition(Selection& aSelection, bool* aCancel,
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bool* aHandled);
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nsresult WillRemoveAbsolutePosition(Selection* aSelection, bool* aCancel,
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bool* aHandled);
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nsresult WillRelativeChangeZIndex(Selection* aSelection, int32_t aChange,
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bool* aCancel, bool* aHandled);
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nsresult WillMakeDefListItem(Selection* aSelection,
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const nsAString* aBlockType, bool aEntireList,
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bool* aCancel, bool* aHandled);
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nsresult WillMakeBasicBlock(Selection& aSelection,
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const nsAString& aBlockType,
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bool* aCancel, bool* aHandled);
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nsresult MakeBasicBlock(Selection& aSelection, nsIAtom& aBlockType);
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nsresult DidMakeBasicBlock(Selection* aSelection, RulesInfo* aInfo,
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nsresult aResult);
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nsresult DidAbsolutePosition();
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nsresult AlignInnerBlocks(nsINode& aNode, const nsAString* alignType);
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nsresult AlignBlockContents(nsIDOMNode* aNode, const nsAString* alignType);
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nsresult AppendInnerFormatNodes(nsTArray<OwningNonNull<nsINode>>& aArray,
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nsINode* aNode);
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nsresult GetFormatString(nsIDOMNode* aNode, nsAString &outFormat);
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enum class Lists { no, yes };
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enum class Tables { no, yes };
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void GetInnerContent(nsINode& aNode,
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nsTArray<OwningNonNull<nsINode>>& aOutArrayOfNodes,
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int32_t* aIndex, Lists aLists = Lists::yes,
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Tables aTables = Tables::yes);
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Element* IsInListItem(nsINode* aNode);
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nsIAtom& DefaultParagraphSeparator();
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nsresult ReturnInHeader(Selection& aSelection, Element& aHeader,
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nsINode& aNode, int32_t aOffset);
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nsresult ReturnInParagraph(Selection* aSelection, nsIDOMNode* aHeader,
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nsIDOMNode* aTextNode, int32_t aOffset,
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bool* aCancel, bool* aHandled);
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nsresult SplitParagraph(nsIDOMNode* aPara,
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nsIContent* aBRNode,
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Selection* aSelection,
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nsCOMPtr<nsIDOMNode>* aSelNode,
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int32_t* aOffset);
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nsresult ReturnInListItem(Selection& aSelection, Element& aHeader,
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nsINode& aNode, int32_t aOffset);
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nsresult AfterEditInner(EditAction action,
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nsIEditor::EDirection aDirection);
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nsresult RemovePartOfBlock(Element& aBlock, nsIContent& aStartChild,
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nsIContent& aEndChild);
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void SplitBlock(Element& aBlock,
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nsIContent& aStartChild,
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nsIContent& aEndChild,
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nsIContent** aOutLeftNode = nullptr,
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nsIContent** aOutRightNode = nullptr,
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nsIContent** aOutMiddleNode = nullptr);
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nsresult OutdentPartOfBlock(Element& aBlock,
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nsIContent& aStartChild,
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nsIContent& aEndChild,
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bool aIsBlockIndentedWithCSS,
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nsIContent** aOutLeftNode,
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nsIContent** aOutRightNode);
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nsresult ConvertListType(Element* aList, Element** aOutList,
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nsIAtom* aListType, nsIAtom* aItemType);
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nsresult CreateStyleForInsertText(Selection& aSelection, nsIDocument& aDoc);
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enum class MozBRCounts { yes, no };
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nsresult IsEmptyBlock(Element& aNode, bool* aOutIsEmptyBlock,
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MozBRCounts aMozBRCounts = MozBRCounts::yes);
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nsresult CheckForEmptyBlock(nsINode* aStartNode, Element* aBodyNode,
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Selection* aSelection,
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nsIEditor::EDirection aAction, bool* aHandled);
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enum class BRLocation { beforeBlock, blockEnd };
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Element* CheckForInvisibleBR(Element& aBlock, BRLocation aWhere,
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int32_t aOffset = 0);
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nsresult ExpandSelectionForDeletion(Selection& aSelection);
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bool IsFirstNode(nsIDOMNode* aNode);
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bool IsLastNode(nsIDOMNode* aNode);
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nsresult NormalizeSelection(Selection* aSelection);
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void GetPromotedPoint(RulesEndpoint aWhere, nsIDOMNode* aNode,
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int32_t aOffset, EditAction actionID,
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nsCOMPtr<nsIDOMNode>* outNode, int32_t* outOffset);
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void GetPromotedRanges(Selection& aSelection,
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nsTArray<RefPtr<nsRange>>& outArrayOfRanges,
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EditAction inOperationType);
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void PromoteRange(nsRange& aRange, EditAction inOperationType);
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enum class TouchContent { no, yes };
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nsresult GetNodesForOperation(
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nsTArray<RefPtr<nsRange>>& aArrayOfRanges,
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nsTArray<OwningNonNull<nsINode>>& aOutArrayOfNodes,
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EditAction aOperationType,
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TouchContent aTouchContent = TouchContent::yes);
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void GetChildNodesForOperation(
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nsINode& aNode,
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nsTArray<OwningNonNull<nsINode>>& outArrayOfNodes);
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nsresult GetNodesFromPoint(EditorDOMPoint aPoint,
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EditAction aOperation,
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nsTArray<OwningNonNull<nsINode>>& outArrayOfNodes,
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TouchContent aTouchContent);
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nsresult GetNodesFromSelection(
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Selection& aSelection,
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EditAction aOperation,
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nsTArray<OwningNonNull<nsINode>>& outArrayOfNodes,
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TouchContent aTouchContent = TouchContent::yes);
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enum class EntireList { no, yes };
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nsresult GetListActionNodes(
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nsTArray<OwningNonNull<nsINode>>& aOutArrayOfNodes,
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EntireList aEntireList,
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TouchContent aTouchContent = TouchContent::yes);
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void GetDefinitionListItemTypes(Element* aElement, bool* aDT, bool* aDD);
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nsresult GetParagraphFormatNodes(
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nsTArray<OwningNonNull<nsINode>>& outArrayOfNodes,
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TouchContent aTouchContent = TouchContent::yes);
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void LookInsideDivBQandList(nsTArray<OwningNonNull<nsINode>>& aNodeArray);
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nsresult BustUpInlinesAtRangeEndpoints(RangeItem& inRange);
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nsresult BustUpInlinesAtBRs(
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nsIContent& aNode,
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nsTArray<OwningNonNull<nsINode>>& aOutArrayOfNodes);
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nsIContent* GetHighestInlineParent(nsINode& aNode);
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void MakeTransitionList(nsTArray<OwningNonNull<nsINode>>& aNodeArray,
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nsTArray<bool>& aTransitionArray);
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nsresult RemoveBlockStyle(nsTArray<OwningNonNull<nsINode>>& aNodeArray);
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nsresult ApplyBlockStyle(nsTArray<OwningNonNull<nsINode>>& aNodeArray,
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nsIAtom& aBlockTag);
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nsresult MakeBlockquote(nsTArray<OwningNonNull<nsINode>>& aNodeArray);
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nsresult SplitAsNeeded(nsIAtom& aTag, OwningNonNull<nsINode>& inOutParent,
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int32_t& inOutOffset);
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nsresult SplitAsNeeded(nsIAtom& aTag, nsCOMPtr<nsINode>& inOutParent,
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int32_t& inOutOffset);
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nsresult AddTerminatingBR(nsIDOMNode *aBlock);
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EditorDOMPoint JoinNodesSmart(nsIContent& aNodeLeft,
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nsIContent& aNodeRight);
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Element* GetTopEnclosingMailCite(nsINode& aNode);
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nsresult PopListItem(nsIContent& aListItem, bool* aOutOfList = nullptr);
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nsresult RemoveListStructure(Element& aList);
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nsresult CacheInlineStyles(nsIDOMNode* aNode);
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nsresult ReapplyCachedStyles();
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void ClearCachedStyles();
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void AdjustSpecialBreaks();
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nsresult AdjustWhitespace(Selection* aSelection);
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nsresult PinSelectionToNewBlock(Selection* aSelection);
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void CheckInterlinePosition(Selection& aSelection);
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nsresult AdjustSelection(Selection* aSelection,
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nsIEditor::EDirection aAction);
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nsresult FindNearSelectableNode(nsIDOMNode* aSelNode,
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int32_t aSelOffset,
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nsIEditor::EDirection& aDirection,
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nsCOMPtr<nsIDOMNode>* outSelectableNode);
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/**
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* Returns true if aNode1 or aNode2 or both is the descendant of some type of
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* table element, but their nearest table element ancestors differ. "Table
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* element" here includes not just <table> but also <td>, <tbody>, <tr>, etc.
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* The nodes count as being their own descendants for this purpose, so a
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* table element is its own nearest table element ancestor.
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*/
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bool InDifferentTableElements(nsIDOMNode* aNode1, nsIDOMNode* aNode2);
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bool InDifferentTableElements(nsINode* aNode1, nsINode* aNode2);
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nsresult RemoveEmptyNodes();
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nsresult SelectionEndpointInNode(nsINode* aNode, bool* aResult);
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nsresult UpdateDocChangeRange(nsRange* aRange);
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nsresult ConfirmSelectionInBody();
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nsresult InsertMozBRIfNeeded(nsINode& aNode);
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bool IsEmptyInline(nsINode& aNode);
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bool ListIsEmptyLine(nsTArray<OwningNonNull<nsINode>>& arrayOfNodes);
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nsresult RemoveAlignment(nsINode& aNode, const nsAString& aAlignType,
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bool aChildrenOnly);
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nsresult MakeSureElemStartsOrEndsOnCR(nsINode& aNode, bool aStarts);
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enum class ContentsOnly { no, yes };
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nsresult AlignBlock(Element& aElement,
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const nsAString& aAlignType, ContentsOnly aContentsOnly);
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enum class Change { minus, plus };
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nsresult ChangeIndentation(Element& aElement, Change aChange);
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void DocumentModifiedWorker();
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/**
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* InitStyleCacheArray() initializes aStyleCache for usable with
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* GetInlineStyles().
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*/
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void InitStyleCacheArray(StyleCache aStyleCache[SIZE_STYLE_TABLE]);
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/**
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* GetInlineStyles() retrieves the style of aNode and modifies each item of
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* aStyleCache.
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*/
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nsresult GetInlineStyles(nsIDOMNode* aNode,
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StyleCache aStyleCache[SIZE_STYLE_TABLE]);
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protected:
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HTMLEditor* mHTMLEditor;
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RefPtr<nsRange> mDocChangeRange;
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bool mListenerEnabled;
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bool mReturnInEmptyLIKillsList;
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bool mDidDeleteSelection;
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bool mDidRangedDelete;
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bool mRestoreContentEditableCount;
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RefPtr<nsRange> mUtilRange;
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// Need to remember an int across willJoin/didJoin...
|
|
uint32_t mJoinOffset;
|
|
nsCOMPtr<Element> mNewBlock;
|
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RefPtr<RangeItem> mRangeItem;
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// XXX In strict speaking, mCachedStyles isn't enough to cache inline styles
|
|
// because inline style can be specified with "style" attribute and/or
|
|
// CSS in <style> elements or CSS files. So, we need to look for better
|
|
// implementation about this.
|
|
StyleCache mCachedStyles[SIZE_STYLE_TABLE];
|
|
};
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} // namespace mozilla
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#endif // #ifndef HTMLEditRules_h
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