RetroZilla/embedding/lite/nsEmbedGlobalHistory.h

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/* -*- 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):
* Conrad Carlen <ccarlen@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 ***** */
#ifndef __nsEmbedGlobalHistory_h__
#define __nsEmbedGlobalHistory_h__
#include "nsIGlobalHistory.h"
#include "nsIObserver.h"
#include "nsWeakReference.h"
#include "nsILocalFile.h"
#include "nsString.h"
class nsHashtable;
class nsHashKey;
class nsCStringKey;
class HistoryEntry;
//*****************************************************************************
// nsEmbedGlobalHistory
//*****************************************************************************
// {2f977d51-5485-11d4-87e2-0010a4e75ef2}
#define NS_EMBEDGLOBALHISTORY_CID \
{ 0x2f977d51, 0x5485, 0x11d4, \
{ 0x87, 0xe2, 0x00, 0x10, 0xa4, 0xe7, 0x5e, 0xf2 } }
class nsEmbedGlobalHistory: public nsIGlobalHistory,
public nsIObserver,
public nsSupportsWeakReference
{
public:
nsEmbedGlobalHistory();
virtual ~nsEmbedGlobalHistory();
NS_IMETHOD Init();
NS_DECL_ISUPPORTS
NS_DECL_NSIGLOBALHISTORY
NS_DECL_NSIOBSERVER
protected:
enum { kFlushModeAppend, kFlushModeFullWrite };
nsresult LoadData();
nsresult FlushData(PRIntn mode = kFlushModeFullWrite);
nsresult ResetData();
nsresult GetHistoryFile();
PRBool EntryHasExpired(HistoryEntry *entry);
static PRIntn PR_CALLBACK enumRemoveEntryIfExpired(nsHashKey *aKey, void *aData, void* closure);
protected:
PRBool mDataIsLoaded;
PRInt32 mEntriesAddedSinceFlush;
nsCOMPtr<nsILocalFile> mHistoryFile;
nsHashtable *mURLTable;
PRInt64 mExpirationInterval;
};
#endif