gecko-dev/editor/libeditor/txtsvc/nsTextServicesDocument.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 nsTextServicesDocument_h__
#define nsTextServicesDocument_h__
#include "nsCOMPtr.h"
#include "nsIPresShell.h"
#include "nsIDOMDocument.h"
#include "nsIDOMRange.h"
#include "nsIContent.h"
#include "nsIContentIterator.h"
#include "nsIEditor.h"
#include "nsIEditActionListener.h"
#include "nsITextServicesDocument.h"
#include "nsVoidArray.h"
#include "nsTSDNotifier.h"
/** implementation of a text services object.
*
*/
class nsTextServicesDocument : public nsITextServicesDocument
{
private:
static nsIAtom *sAAtom;
static nsIAtom *sAddressAtom;
static nsIAtom *sBigAtom;
static nsIAtom *sBlinkAtom;
static nsIAtom *sBAtom;
static nsIAtom *sCiteAtom;
static nsIAtom *sCodeAtom;
static nsIAtom *sDfnAtom;
static nsIAtom *sEmAtom;
static nsIAtom *sFontAtom;
static nsIAtom *sIAtom;
static nsIAtom *sKbdAtom;
static nsIAtom *sKeygenAtom;
static nsIAtom *sNobrAtom;
static nsIAtom *sSAtom;
static nsIAtom *sSampAtom;
static nsIAtom *sSmallAtom;
static nsIAtom *sSpacerAtom;
static nsIAtom *sSpanAtom;
static nsIAtom *sStrikeAtom;
static nsIAtom *sStrongAtom;
static nsIAtom *sSubAtom;
static nsIAtom *sSupAtom;
static nsIAtom *sTtAtom;
static nsIAtom *sUAtom;
static nsIAtom *sVarAtom;
static nsIAtom *sWbrAtom;
static PRInt32 sInstanceCount;
typedef enum { eIsDone=0, // No iterator (I), or itertor doesn't point to anything valid.
eValid, // I points to first text node (TN) in current block (CB).
ePrev, // No TN in CB, I points to first TN in prev block.
eNext // No TN in CB, I points to first TN in next block.
} TSDIteratorStatus;
nsCOMPtr<nsIDOMDocument> mDOMDocument;
nsCOMPtr<nsISelectionController>mSelCon;
nsCOMPtr<nsIEditor> mEditor;
nsCOMPtr<nsIContentIterator> mIterator;
TSDIteratorStatus mIteratorStatus;
nsCOMPtr<nsIContent> mPrevTextBlock;
nsCOMPtr<nsIContent> mNextTextBlock;
nsCOMPtr<nsIEditActionListener> mNotifier;
nsVoidArray mOffsetTable;
PRInt32 mSelStartIndex;
PRInt32 mSelStartOffset;
PRInt32 mSelEndIndex;
PRInt32 mSelEndOffset;
public:
/** The default constructor.
*/
nsTextServicesDocument();
/** The default destructor.
*/
virtual ~nsTextServicesDocument();
/* Macro for AddRef(), Release(), and QueryInterface() */
NS_DECL_ISUPPORTS
/* nsITextServicesDocument method implementations. */
NS_IMETHOD InitWithDocument(nsIDOMDocument *aDOMDocument, nsIPresShell *aPresShell);
NS_IMETHOD InitWithEditor(nsIEditor *aEditor);
NS_IMETHOD CanEdit(PRBool *aCanEdit);
NS_IMETHOD GetCurrentTextBlock(nsString *aStr);
NS_IMETHOD FirstBlock();
NS_IMETHOD LastBlock();
NS_IMETHOD FirstSelectedBlock(TSDBlockSelectionStatus *aSelStatus, PRInt32 *aSelOffset, PRInt32 *aSelLength);
NS_IMETHOD LastSelectedBlock(TSDBlockSelectionStatus *aSelStatus, PRInt32 *aSelOffset, PRInt32 *aSelLength);
NS_IMETHOD PrevBlock();
NS_IMETHOD NextBlock();
NS_IMETHOD IsDone(PRBool *aIsDone);
NS_IMETHOD SetSelection(PRInt32 aOffset, PRInt32 aLength);
NS_IMETHOD ScrollSelectionIntoView();
NS_IMETHOD DeleteSelection();
NS_IMETHOD InsertText(const nsString *aText);
NS_IMETHOD SetDisplayStyle(TSDDisplayStyle aStyle);
/* nsIEditActionListener method implementations. */
nsresult InsertNode(nsIDOMNode * aNode,
nsIDOMNode * aParent,
PRInt32 aPosition);
nsresult DeleteNode(nsIDOMNode * aChild);
nsresult SplitNode(nsIDOMNode * aExistingRightNode,
PRInt32 aOffset,
nsIDOMNode * aNewLeftNode);
nsresult JoinNodes(nsIDOMNode *aLeftNode,
nsIDOMNode *aRightNode,
nsIDOMNode *aParent);
private:
/* nsTextServicesDocument private methods. */
nsresult CreateContentIterator(nsIDOMRange *aRange, nsIContentIterator **aIterator);
nsresult GetDocumentContentRootNode(nsIDOMNode **aNode);
nsresult CreateDocumentContentRange(nsIDOMRange **aRange);
nsresult CreateDocumentContentRootToNodeOffsetRange(nsIDOMNode *aParent, PRInt32 aOffset, PRBool aToStart, nsIDOMRange **aRange);
nsresult CreateDocumentContentIterator(nsIContentIterator **aIterator);
nsresult AdjustContentIterator();
nsresult FirstTextNodeInCurrentBlock(nsIContentIterator *aIterator);
nsresult FirstTextNodeInPrevBlock(nsIContentIterator *aIterator);
nsresult FirstTextNodeInNextBlock(nsIContentIterator *aIterator);
nsresult GetFirstTextNodeInPrevBlock(nsIContent **aContent);
nsresult GetFirstTextNodeInNextBlock(nsIContent **aContent);
PRBool IsBlockNode(nsIContent *aContent);
PRBool IsTextNode(nsIContent *aContent);
PRBool IsTextNode(nsIDOMNode *aNode);
PRBool HasSameBlockNodeParent(nsIContent *aContent1, nsIContent *aContent2);
nsresult SetSelectionInternal(PRInt32 aOffset, PRInt32 aLength, PRBool aDoUpdate);
nsresult GetSelection(TSDBlockSelectionStatus *aSelStatus, PRInt32 *aSelOffset, PRInt32 *aSelLength);
nsresult GetCollapsedSelection(TSDBlockSelectionStatus *aSelStatus, PRInt32 *aSelOffset, PRInt32 *aSelLength);
nsresult GetUncollapsedSelection(TSDBlockSelectionStatus *aSelStatus, PRInt32 *aSelOffset, PRInt32 *aSelLength);
PRBool SelectionIsCollapsed();
PRBool SelectionIsValid();
nsresult ComparePoints(nsIDOMNode *aParent1, PRInt32 aOffset1, nsIDOMNode *aParent2, PRInt32 aOffset2, PRInt32 *aResult);
nsresult GetRangeEndPoints(nsIDOMRange *aRange, nsIDOMNode **aParent1, PRInt32 *aOffset1, nsIDOMNode **aParent2, PRInt32 *aOffset2);
nsresult CreateRange(nsIDOMNode *aStartParent, PRInt32 aStartOffset, nsIDOMNode *aEndParent, PRInt32 aEndOffset, nsIDOMRange **aRange);
nsresult RemoveInvalidOffsetEntries();
nsresult CreateOffsetTable(nsString *aStr=0);
nsresult ClearOffsetTable();
nsresult SplitOffsetEntry(PRInt32 aTableIndex, PRInt32 aOffsetIntoEntry);
nsresult NodeHasOffsetEntry(nsIDOMNode *aNode, PRBool *aHasEntry, PRInt32 *aEntryIndex);
/* DEBUG */
void PrintOffsetTable();
void PrintContentNode(nsIContent *aContent);
};
#endif // nsTextServicesDocument_h__