gecko-dev/layout/base/nsPresState.cpp

80 lines
2.5 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla 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/MPL/
*
* 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 the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
* a piece of state that is stored in session history when the document
* is not
*/
#include "nsCOMPtr.h"
#include "nsXPCOM.h"
#include "nsISupportsPrimitives.h"
#include "nsLayoutErrors.h"
#include "nsPresState.h"
// Implementation /////////////////////////////////////////////////////////////////
nsresult
nsPresState::SetScrollState(const nsRect& aRect)
{
if (!mScrollState) {
mScrollState = new nsRect();
if (!mScrollState)
return NS_ERROR_OUT_OF_MEMORY;
}
*mScrollState = aRect;
return NS_OK;
}
nsRect
nsPresState::GetScrollState()
{
if (!mScrollState) {
nsRect empty(0,0,0,0);
return empty;
}
return *mScrollState;
}
void
nsPresState::ClearNonScrollState()
{
mContentData = nsnull;
mDisabledSet = PR_FALSE;
}