gecko-dev/editor/base/nsEditorUtils.cpp

58 строки
1.7 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 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#include "nsEditorUtils.h"
#include "nsIDOMDocument.h"
/******************************************************************************
* nsAutoSelectionReset
*****************************************************************************/
nsAutoSelectionReset::nsAutoSelectionReset(nsIDOMSelection *aSel, nsEditor *aEd) :
mSel(nsnull)
,mEd(nsnull)
{
if (!aSel || !aEd) return; // not much we can do, bail.
if (aEd->mSavedSel) return; // we already have initted mSavedSel, so this must be nested call.
mSel = do_QueryInterface(aSel);
mEd = aEd;
if (mSel)
{
mEd->mSavedSel = new nsSelectionState();
mEd->mSavedSel->SaveSelection(mSel);
}
}
nsAutoSelectionReset::~nsAutoSelectionReset()
{
if (mSel && mEd->mSavedSel) // mSel will be null if this was nested call
{
mEd->mSavedSel->RestoreSelection(mSel);
delete mEd->mSavedSel;
mEd->mSavedSel = nsnull;
}
}