зеркало из https://github.com/mozilla/pjs.git
223 строки
10 KiB
C++
223 строки
10 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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*/
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#ifndef nsHTMLEditRules_h__
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#define nsHTMLEditRules_h__
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#include "nsTextEditRules.h"
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#include "nsIEditActionListener.h"
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#include "nsISupportsArray.h"
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#include "nsCOMPtr.h"
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#include "nsString.h"
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class nsISupportsArray;
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class nsVoidArray;
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class nsIDOMElement;
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class nsHTMLEditRules : public nsTextEditRules
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{
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public:
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nsHTMLEditRules();
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virtual ~nsHTMLEditRules();
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// nsEditRules methods
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NS_IMETHOD BeforeEdit(PRInt32 action, nsIEditor::EDirection aDirection);
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NS_IMETHOD AfterEdit(PRInt32 action, nsIEditor::EDirection aDirection);
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NS_IMETHOD Init(nsHTMLEditor *aEditor, PRUint32 aFlags);
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NS_IMETHOD WillDoAction(nsIDOMSelection *aSelection, nsRulesInfo *aInfo, PRBool *aCancel, PRBool *aHandled);
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NS_IMETHOD DidDoAction(nsIDOMSelection *aSelection, nsRulesInfo *aInfo, nsresult aResult);
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protected:
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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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// nsHTMLEditRules implementation methods
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nsresult WillInsertText( PRInt32 aAction,
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nsIDOMSelection *aSelection,
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PRBool *aCancel,
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PRBool *aHandled,
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const nsString *inString,
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nsString *outString,
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TypeInState typeInState,
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PRInt32 aMaxLength);
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nsresult WillInsertBreak(nsIDOMSelection *aSelection, PRBool *aCancel, PRBool *aHandled);
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nsresult WillDeleteSelection(nsIDOMSelection *aSelection, nsIEditor::EDirection aAction,
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PRBool *aCancel, PRBool *aHandled);
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nsresult WillMakeList(nsIDOMSelection *aSelection, PRBool aOrderd, PRBool *aCancel, PRBool *aHandled);
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nsresult WillRemoveList(nsIDOMSelection *aSelection, PRBool aOrderd, PRBool *aCancel, PRBool *aHandled);
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nsresult WillIndent(nsIDOMSelection *aSelection, PRBool *aCancel, PRBool *aHandled);
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nsresult WillOutdent(nsIDOMSelection *aSelection, PRBool *aCancel, PRBool *aHandled);
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nsresult WillAlign(nsIDOMSelection *aSelection, const nsString *alignType, PRBool *aCancel, PRBool *aHandled);
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nsresult WillMakeBasicBlock(nsIDOMSelection *aSelection, const nsString *aBlockType, PRBool *aCancel, PRBool *aHandled);
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nsresult InsertTab(nsIDOMSelection *aSelection, nsString *outString);
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nsresult InsertSpace(nsIDOMSelection *aSelection, nsString *outString);
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nsresult ReturnInHeader(nsIDOMSelection *aSelection, nsIDOMNode *aHeader, nsIDOMNode *aTextNode, PRInt32 aOffset);
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nsresult ReturnInParagraph(nsIDOMSelection *aSelection, nsIDOMNode *aHeader, nsIDOMNode *aTextNode, PRInt32 aOffset, PRBool *aCancel, PRBool *aHandled);
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nsresult ReturnInListItem(nsIDOMSelection *aSelection, nsIDOMNode *aHeader, nsIDOMNode *aTextNode, PRInt32 aOffset);
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// helper methods
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static nsresult GetTabAsNBSPs(nsString *outString);
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static nsresult GetTabAsNBSPsAndSpace(nsString *outString);
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static PRBool IsHeader(nsIDOMNode *aNode);
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static PRBool IsParagraph(nsIDOMNode *aNode);
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static PRBool IsListItem(nsIDOMNode *aNode);
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static PRBool IsTableCell(nsIDOMNode *aNode);
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static PRBool IsList(nsIDOMNode *aNode);
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static PRBool IsUnorderedList(nsIDOMNode *aNode);
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static PRBool IsOrderedList(nsIDOMNode *aNode);
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static PRBool IsBlockquote(nsIDOMNode *aNode);
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static PRBool IsAnchor(nsIDOMNode *aNode);
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static PRBool IsDiv(nsIDOMNode *aNode);
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static PRBool IsNormalDiv(nsIDOMNode *aNode);
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static PRBool IsMozDiv(nsIDOMNode *aNode);
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static PRBool IsMailCite(nsIDOMNode *aNode);
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nsresult IsEmptyBlock(nsIDOMNode *aNode,
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PRBool *outIsEmptyBlock,
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PRBool aMozBRDoesntCount = PR_FALSE,
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PRBool aListItemsNotEmpty = PR_FALSE);
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nsresult IsEmptyNode(nsIDOMNode *aNode,
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PRBool *outIsEmptyBlock,
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PRBool aMozBRDoesntCount = PR_FALSE,
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PRBool aListItemsNotEmpty = PR_FALSE);
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PRBool IsDescendantOf(nsIDOMNode *aNode, nsIDOMNode *aParent);
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PRBool IsFirstNode(nsIDOMNode *aNode);
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PRBool IsLastNode(nsIDOMNode *aNode);
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PRBool AtStartOfBlock(nsIDOMNode *aNode, PRInt32 aOffset, nsIDOMNode *aBlock);
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PRBool AtEndOfBlock(nsIDOMNode *aNode, PRInt32 aOffset, nsIDOMNode *aBlock);
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nsresult GetPromotedPoint(RulesEndpoint aWhere, nsIDOMNode *aNode, PRInt32 aOffset,
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PRInt32 actionID, nsCOMPtr<nsIDOMNode> *outNode, PRInt32 *outOffset);
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nsresult GetPromotedRanges(nsIDOMSelection *inSelection,
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nsCOMPtr<nsISupportsArray> *outArrayOfRanges,
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PRInt32 inOperationType);
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nsresult PromoteRange(nsIDOMRange *inRange, PRInt32 inOperationType);
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nsresult GetNodesForOperation(nsISupportsArray *inArrayOfRanges,
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nsCOMPtr<nsISupportsArray> *outArrayOfNodes,
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PRInt32 inOperationType);
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nsresult GetChildNodesForOperation(nsIDOMNode *inNode,
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nsCOMPtr<nsISupportsArray> *outArrayOfNodes);
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nsresult MakeTransitionList(nsISupportsArray *inArrayOfNodes,
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nsVoidArray *inTransitionArray);
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nsresult ShouldMakeEmptyBlock(nsIDOMSelection *aSelection, const nsString *blockTag, PRBool *outMakeEmpty);
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nsresult ApplyBlockStyle(nsISupportsArray *arrayOfNodes, const nsString *aBlockTag);
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nsresult ReplaceContainer(nsIDOMNode *inNode, nsCOMPtr<nsIDOMNode> *outNode, const nsString &aNodeType);
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nsresult RemoveContainer(nsIDOMNode *inNode, PRBool aAddBRIfNeeded=PR_FALSE);
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nsresult InsertContainerAbove(nsIDOMNode *inNode, nsCOMPtr<nsIDOMNode> *outNode, const nsString &aNodeType);
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nsresult JoinNodesSmart( nsIDOMNode *aNodeLeft,
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nsIDOMNode *aNodeRight,
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nsCOMPtr<nsIDOMNode> *aOutMergeParent,
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PRInt32 *aOutMergeOffset);
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nsresult GetTopEnclosingMailCite(nsIDOMNode *aNode, nsCOMPtr<nsIDOMNode> *aOutCiteNode);
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nsresult PopListItem(nsIDOMNode *aListItem, PRBool *aOutOfList);
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nsresult AdjustSpecialBreaks();
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nsresult AdjustWhitespace(nsIDOMSelection *aSelection);
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nsresult AdjustSelection(nsIDOMSelection *aSelection, nsIEditor::EDirection aAction);
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nsresult FindNearTextNode(nsIDOMNode *aSelNode,
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PRInt32 aSelOffset,
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nsIEditor::EDirection aDirection,
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nsCOMPtr<nsIDOMNode> *outTextNode);
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nsresult RemoveEmptyNodes();
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nsresult DoTextNodeWhitespace(nsIDOMCharacterData *aTextNode, PRInt32 aStart, PRInt32 aEnd);
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nsresult UpdateDocChangeRange(nsIDOMRange *aRange);
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nsresult ConvertWhitespace(const nsString & inString, nsString & outString);
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nsresult ConfirmSelectionInBody();
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// removed from use:
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#if 0
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nsresult AddTrailerBR(nsIDOMNode *aNode);
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nsresult CreateMozDiv(nsIDOMNode *inParent, PRInt32 inOffset, nsCOMPtr<nsIDOMNode> *outDiv);
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#endif
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// data members
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protected:
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nsCOMPtr<nsIEditActionListener> mListener;
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nsCOMPtr<nsIDOMRange> mDocChangeRange;
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// friends
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friend class nsHTMLEditListener;
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friend nsresult NS_NewEditListener(nsIEditActionListener **aResult,
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nsHTMLEditor *htmlEditor,
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nsHTMLEditRules *htmlRules);
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};
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class nsHTMLEditListener : public nsIEditActionListener
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{
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public:
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nsHTMLEditListener(nsHTMLEditor *htmlEditor, nsHTMLEditRules *htmlRules);
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virtual ~nsHTMLEditListener();
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NS_DECL_ISUPPORTS
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// nsIEditActionListener methods
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NS_IMETHOD WillCreateNode(const nsString& aTag, nsIDOMNode *aParent, PRInt32 aPosition);
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NS_IMETHOD DidCreateNode(const nsString& aTag, nsIDOMNode *aNode, nsIDOMNode *aParent, PRInt32 aPosition, nsresult aResult);
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NS_IMETHOD WillInsertNode(nsIDOMNode *aNode, nsIDOMNode *aParent, PRInt32 aPosition);
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NS_IMETHOD DidInsertNode(nsIDOMNode *aNode, nsIDOMNode *aParent, PRInt32 aPosition, nsresult aResult);
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NS_IMETHOD WillDeleteNode(nsIDOMNode *aChild);
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NS_IMETHOD DidDeleteNode(nsIDOMNode *aChild, nsresult aResult);
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NS_IMETHOD WillSplitNode(nsIDOMNode *aExistingRightNode, PRInt32 aOffset);
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NS_IMETHOD DidSplitNode(nsIDOMNode *aExistingRightNode, PRInt32 aOffset, nsIDOMNode *aNewLeftNode, nsresult aResult);
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NS_IMETHOD WillJoinNodes(nsIDOMNode *aLeftNode, nsIDOMNode *aRightNode, nsIDOMNode *aParent);
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NS_IMETHOD DidJoinNodes(nsIDOMNode *aLeftNode, nsIDOMNode *aRightNode, nsIDOMNode *aParent, nsresult aResult);
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NS_IMETHOD WillInsertText(nsIDOMCharacterData *aTextNode, PRInt32 aOffset, const nsString &aString);
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NS_IMETHOD DidInsertText(nsIDOMCharacterData *aTextNode, PRInt32 aOffset, const nsString &aString, nsresult aResult);
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NS_IMETHOD WillDeleteText(nsIDOMCharacterData *aTextNode, PRInt32 aOffset, PRInt32 aLength);
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NS_IMETHOD DidDeleteText(nsIDOMCharacterData *aTextNode, PRInt32 aOffset, PRInt32 aLength, nsresult aResult);
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NS_IMETHOD WillDeleteSelection(nsIDOMSelection *aSelection);
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NS_IMETHOD DidDeleteSelection(nsIDOMSelection *aSelection);
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protected:
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nsresult MakeRangeFromNode(nsIDOMNode *inNode, nsCOMPtr<nsIDOMRange> *outRange);
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nsresult MakeRangeFromTextOffsets(nsIDOMCharacterData *inNode,
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PRInt32 inStart,
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PRInt32 inEnd,
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nsCOMPtr<nsIDOMRange> *outRange);
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PRBool IsDescendantOfBody(nsIDOMNode *inNode) ;
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// data members
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nsHTMLEditor *mEditor;
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nsHTMLEditRules *mRules;
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nsCOMPtr<nsIDOMNode> mBody;
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};
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#endif //nsHTMLEditRules_h__
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