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pjs/editor/base/nsHTMLEditRules.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#ifndef nsHTMLEditRules_h__
#define nsHTMLEditRules_h__
#include "nsTextEditRules.h"
#include "nsIHTMLEditRules.h"
#include "nsIEditActionListener.h"
#include "nsISupportsArray.h"
#include "nsCOMPtr.h"
#include "nsString.h"
class nsISupportsArray;
class nsVoidArray;
class nsIDOMElement;
class nsIEditor;
class nsHTMLEditor;
class nsHTMLEditRules : public nsIHTMLEditRules, public nsTextEditRules, public nsIEditActionListener
{
public:
NS_DECL_ISUPPORTS_INHERITED
nsHTMLEditRules();
virtual ~nsHTMLEditRules();
// nsIEditRules methods
NS_IMETHOD Init(nsPlaintextEditor *aEditor, PRUint32 aFlags);
NS_IMETHOD BeforeEdit(PRInt32 action, nsIEditor::EDirection aDirection);
NS_IMETHOD AfterEdit(PRInt32 action, nsIEditor::EDirection aDirection);
NS_IMETHOD WillDoAction(nsISelection *aSelection, nsRulesInfo *aInfo, PRBool *aCancel, PRBool *aHandled);
NS_IMETHOD DidDoAction(nsISelection *aSelection, nsRulesInfo *aInfo, nsresult aResult);
// nsIHTMLEditRules methods
NS_IMETHOD GetListState(PRBool &aMixed, PRBool &aOL, PRBool &aUL, PRBool &aDL);
NS_IMETHOD GetListItemState(PRBool &aMixed, PRBool &aLI, PRBool &aDT, PRBool &aDD);
NS_IMETHOD GetIndentState(PRBool &aCanIndent, PRBool &aCanOutdent);
NS_IMETHOD GetAlignment(PRBool &aMixed, nsIHTMLEditor::EAlignment &aAlign);
NS_IMETHOD GetParagraphState(PRBool &aMixed, nsString &outFormat);
// nsIEditActionListener methods
NS_IMETHOD WillCreateNode(const nsString& aTag, nsIDOMNode *aParent, PRInt32 aPosition);
NS_IMETHOD DidCreateNode(const nsString& aTag, nsIDOMNode *aNode, nsIDOMNode *aParent, PRInt32 aPosition, nsresult aResult);
NS_IMETHOD WillInsertNode(nsIDOMNode *aNode, nsIDOMNode *aParent, PRInt32 aPosition);
NS_IMETHOD DidInsertNode(nsIDOMNode *aNode, nsIDOMNode *aParent, PRInt32 aPosition, nsresult aResult);
NS_IMETHOD WillDeleteNode(nsIDOMNode *aChild);
NS_IMETHOD DidDeleteNode(nsIDOMNode *aChild, nsresult aResult);
NS_IMETHOD WillSplitNode(nsIDOMNode *aExistingRightNode, PRInt32 aOffset);
NS_IMETHOD DidSplitNode(nsIDOMNode *aExistingRightNode, PRInt32 aOffset, nsIDOMNode *aNewLeftNode, nsresult aResult);
NS_IMETHOD WillJoinNodes(nsIDOMNode *aLeftNode, nsIDOMNode *aRightNode, nsIDOMNode *aParent);
NS_IMETHOD DidJoinNodes(nsIDOMNode *aLeftNode, nsIDOMNode *aRightNode, nsIDOMNode *aParent, nsresult aResult);
NS_IMETHOD WillInsertText(nsIDOMCharacterData *aTextNode, PRInt32 aOffset, const nsString &aString);
NS_IMETHOD DidInsertText(nsIDOMCharacterData *aTextNode, PRInt32 aOffset, const nsString &aString, nsresult aResult);
NS_IMETHOD WillDeleteText(nsIDOMCharacterData *aTextNode, PRInt32 aOffset, PRInt32 aLength);
NS_IMETHOD DidDeleteText(nsIDOMCharacterData *aTextNode, PRInt32 aOffset, PRInt32 aLength, nsresult aResult);
NS_IMETHOD WillDeleteSelection(nsISelection *aSelection);
NS_IMETHOD DidDeleteSelection(nsISelection *aSelection);
protected:
enum RulesEndpoint
{
kStart,
kEnd
};
// nsHTMLEditRules implementation methods
nsresult WillInsert(nsISelection *aSelection, PRBool *aCancel);
nsresult DidInsert(nsISelection *aSelection, nsresult aResult);
nsresult WillInsertText( PRInt32 aAction,
nsISelection *aSelection,
PRBool *aCancel,
PRBool *aHandled,
const nsString *inString,
nsString *outString,
PRInt32 aMaxLength);
nsresult WillInsertBreak(nsISelection *aSelection, PRBool *aCancel, PRBool *aHandled);
nsresult DidInsertBreak(nsISelection *aSelection, nsresult aResult);
nsresult WillDeleteSelection(nsISelection *aSelection, nsIEditor::EDirection aAction,
PRBool *aCancel, PRBool *aHandled);
nsresult DeleteNonTableElements(nsIDOMNode *aNode);
nsresult WillMakeList(nsISelection *aSelection, const nsString *aListType, PRBool aEntireList, PRBool *aCancel, PRBool *aHandled, const nsString *aItemType=nsnull);
nsresult WillRemoveList(nsISelection *aSelection, PRBool aOrderd, PRBool *aCancel, PRBool *aHandled);
nsresult WillIndent(nsISelection *aSelection, PRBool *aCancel, PRBool *aHandled);
nsresult WillOutdent(nsISelection *aSelection, PRBool *aCancel, PRBool *aHandled);
nsresult WillAlign(nsISelection *aSelection, const nsString *alignType, PRBool *aCancel, PRBool *aHandled);
nsresult WillMakeDefListItem(nsISelection *aSelection, const nsString *aBlockType, PRBool aEntireList, PRBool *aCancel, PRBool *aHandled);
nsresult WillMakeBasicBlock(nsISelection *aSelection, const nsString *aBlockType, PRBool *aCancel, PRBool *aHandled);
nsresult DidMakeBasicBlock(nsISelection *aSelection, nsRulesInfo *aInfo, nsresult aResult);
nsresult AlignInnerBlocks(nsIDOMNode *aNode, const nsString *alignType);
nsresult AlignBlockContents(nsIDOMNode *aNode, const nsString *alignType);
nsresult GetInnerContent(nsIDOMNode *aNode, nsISupportsArray *outArrayOfNodes, PRBool aList = PR_TRUE, PRBool aTble = PR_TRUE);
nsresult InsertTab(nsISelection *aSelection, nsString *outString);
nsresult ReturnInHeader(nsISelection *aSelection, nsIDOMNode *aHeader, nsIDOMNode *aTextNode, PRInt32 aOffset);
nsresult ReturnInParagraph(nsISelection *aSelection, nsIDOMNode *aHeader, nsIDOMNode *aTextNode, PRInt32 aOffset, PRBool *aCancel, PRBool *aHandled);
nsresult ReturnInListItem(nsISelection *aSelection, nsIDOMNode *aHeader, nsIDOMNode *aTextNode, PRInt32 aOffset);
nsresult AfterEditInner(PRInt32 action, nsIEditor::EDirection aDirection);
nsresult ConvertListType(nsIDOMNode *aList, nsCOMPtr<nsIDOMNode> *outList, const nsString& aListType, const nsString& aItemType);
nsresult CreateStyleForInsertText(nsISelection *aSelection, nsIDOMDocument *aDoc);
nsresult IsEmptyBlock(nsIDOMNode *aNode,
PRBool *outIsEmptyBlock,
PRBool aMozBRDoesntCount = PR_FALSE,
PRBool aListItemsNotEmpty = PR_FALSE);
PRBool IsFirstNode(nsIDOMNode *aNode);
PRBool IsLastNode(nsIDOMNode *aNode);
PRBool AtStartOfBlock(nsIDOMNode *aNode, PRInt32 aOffset, nsIDOMNode *aBlock);
PRBool AtEndOfBlock(nsIDOMNode *aNode, PRInt32 aOffset, nsIDOMNode *aBlock);
nsresult GetPromotedPoint(RulesEndpoint aWhere, nsIDOMNode *aNode, PRInt32 aOffset,
PRInt32 actionID, nsCOMPtr<nsIDOMNode> *outNode, PRInt32 *outOffset);
nsresult GetPromotedRanges(nsISelection *inSelection,
nsCOMPtr<nsISupportsArray> *outArrayOfRanges,
PRInt32 inOperationType);
nsresult PromoteRange(nsIDOMRange *inRange, PRInt32 inOperationType);
nsresult GetNodesForOperation(nsISupportsArray *inArrayOfRanges,
nsCOMPtr<nsISupportsArray> *outArrayOfNodes,
PRInt32 inOperationType,
PRBool aDontTouchContent=PR_FALSE);
nsresult GetChildNodesForOperation(nsIDOMNode *inNode,
nsCOMPtr<nsISupportsArray> *outArrayOfNodes);
nsresult GetListActionNodes(nsCOMPtr<nsISupportsArray> *outArrayOfNodes, PRBool aEntireList, PRBool aDontTouchContent=PR_FALSE);
nsresult GetDefinitionListItemTypes(nsIDOMNode *aNode, PRBool &aDT, PRBool &aDD);
nsresult GetParagraphFormatNodes(nsCOMPtr<nsISupportsArray> *outArrayOfNodes, PRBool aDontTouchContent=PR_FALSE);
nsresult BustUpInlinesAtRangeEndpoints(nsRangeStore &inRange);
nsresult BustUpInlinesAtBRs(nsIDOMNode *inNode,
nsCOMPtr<nsISupportsArray> *outArrayOfNodes);
nsCOMPtr<nsIDOMNode> GetHighestInlineParent(nsIDOMNode* aNode);
nsresult MakeTransitionList(nsISupportsArray *inArrayOfNodes,
nsVoidArray *inTransitionArray);
nsresult ApplyBlockStyle(nsISupportsArray *arrayOfNodes, const nsString *aBlockTag);
nsresult MakeBlockquote(nsISupportsArray *arrayOfNodes);
nsresult SplitAsNeeded(const nsString *aTag, nsCOMPtr<nsIDOMNode> *inOutParent, PRInt32 *inOutOffset);
nsresult AddTerminatingBR(nsIDOMNode *aBlock);
nsresult JoinNodesSmart( nsIDOMNode *aNodeLeft,
nsIDOMNode *aNodeRight,
nsCOMPtr<nsIDOMNode> *aOutMergeParent,
PRInt32 *aOutMergeOffset);
nsresult GetTopEnclosingMailCite(nsIDOMNode *aNode, nsCOMPtr<nsIDOMNode> *aOutCiteNode, PRBool aPlaintext);
nsresult PopListItem(nsIDOMNode *aListItem, PRBool *aOutOfList);
nsresult AdjustSpecialBreaks(PRBool aSafeToAskFrames = PR_FALSE);
nsresult AdjustWhitespace(nsISelection *aSelection);
nsresult AdjustSelection(nsISelection *aSelection, nsIEditor::EDirection aAction);
nsresult FindNearSelectableNode(nsIDOMNode *aSelNode,
PRInt32 aSelOffset,
nsIEditor::EDirection aDirection,
nsCOMPtr<nsIDOMNode> *outSelectableNode);
nsresult InDifferentTableElements(nsIDOMNode *aNode1, nsIDOMNode *aNode2, PRBool *aResult);
nsresult RemoveEmptyNodes();
nsresult SelectionEndpointInNode(nsIDOMNode *aNode, PRBool *aResult);
nsresult DoTextNodeWhitespace(nsIDOMCharacterData *aTextNode, PRInt32 aStart, PRInt32 aEnd);
nsresult UpdateDocChangeRange(nsIDOMRange *aRange);
nsresult ConvertWhitespace(const nsString & inString, nsString & outString);
nsresult ConfirmSelectionInBody();
nsresult InsertMozBRIfNeeded(nsIDOMNode *aNode);
// data members
protected:
nsHTMLEditor *mHTMLEditor;
nsCOMPtr<nsIDOMRange> mDocChangeRange;
PRBool mListenerEnabled;
PRBool mReturnInEmptyLIKillsList;
nsCOMPtr<nsIDOMRange> mUtilRange;
PRUint32 mJoinOffset; // need to remember an int across willJoin/didJoin...
};
nsresult NS_NewHTMLEditRules(nsIEditRules** aInstancePtrResult);
#endif //nsHTMLEditRules_h__
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