gecko-dev/editor/base/SetDocTitleTxn.h

93 lines
2.6 KiB
C++

/* -*- 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) 1998-1999 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#ifndef SetDocTitleTxn_h__
#define SetDocTitleTxn_h__
#include "EditTxn.h"
#include "nsIEditor.h"
#include "nsIHTMLEditor.h"
#include "nsITransaction.h"
#include "nsCOMPtr.h"
#define SET_DOC_TITLE_TXN_CID \
{ /*7FC508B5-ED8F-11d4-AF02-0050040AE132 */ \
0x7fc508b5, 0xed8f, 0x11d4, \
{ 0xaf, 0x2, 0x0, 0x50, 0x4, 0xa, 0xe1, 0x32 } }
/**
* A transaction that changes the document's title,
* which is a text node under the <title> tag in a page's <head> section
* provides default concrete behavior for all nsITransaction methods.
*/
class SetDocTitleTxn : public EditTxn
{
public:
static const nsIID& GetCID() { static nsIID iid = SET_DOC_TITLE_TXN_CID; return iid; }
virtual ~SetDocTitleTxn();
/** Initialize the transaction.
* @param aEditor the object providing core editing operations
* @param aValue the new value for document title
*/
NS_IMETHOD Init(nsIHTMLEditor *aEditor,
const nsAReadableString *aValue);
private:
SetDocTitleTxn();
nsresult SetDocTitle(const nsAReadableString& aTitle);
nsresult SetDomTitle(const nsAReadableString& aTitle);
public:
NS_IMETHOD DoTransaction(void);
NS_IMETHOD UndoTransaction(void);
NS_IMETHOD RedoTransaction(void);
NS_IMETHOD Merge(nsITransaction *aTransaction, PRBool *aDidMerge);
NS_IMETHOD GetIsTransient(PRBool *aIsTransient);
NS_IMETHOD GetTxnDescription(nsAWritableString& aTxnDescription);
protected:
/** the editor that created this transaction */
nsIHTMLEditor* mEditor;
/** The new title string */
nsString mValue;
/** The previous title string to use for undo */
nsString mUndoValue;
/** Set true if we dont' really change the title during Do() */
PRPackedBool mIsTransient;
friend class TransactionFactory;
};
#endif