gecko-dev/xpcom/ds/nsPersistentProperties.h

119 строки
3.8 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
*
* 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 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 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 NPL, 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 NPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsPersistentProperties_h___
#define nsPersistentProperties_h___
#include "nsIPersistentProperties2.h"
#include "pldhash.h"
#include "plarena.h"
class nsIUnicharInputStream;
class nsPersistentProperties : public nsIPersistentProperties
{
public:
nsPersistentProperties();
virtual ~nsPersistentProperties();
NS_DECL_ISUPPORTS
NS_DECL_NSIPROPERTIES
// nsIPersistentProperties methods:
NS_IMETHOD Load(nsIInputStream* aIn);
NS_IMETHOD Save(nsIOutputStream* aOut, const nsString& aHeader);
NS_IMETHOD Subclass(nsIPersistentProperties* aSubclass);
NS_IMETHOD EnumerateProperties(nsIBidirectionalEnumerator* *aResult);
NS_IMETHOD SimpleEnumerateProperties(nsISimpleEnumerator** aResult);
// XXX these 2 methods will be subsumed by the ones from
// nsIProperties once we figure this all out
NS_IMETHOD GetStringProperty(const nsAString& aKey, nsAString& aValue);
NS_IMETHOD SetStringProperty(const nsAString& aKey, nsAString& aNewValue,
nsAString& aOldValue);
// nsPersistentProperties methods:
PRInt32 Read();
PRInt32 SkipLine(PRInt32 c);
PRInt32 SkipWhiteSpace(PRInt32 c);
static NS_METHOD
Create(nsISupports *aOuter, REFNSIID aIID, void **aResult);
protected:
nsIUnicharInputStream* mIn;
PRUint32 mBufferPos;
PRUint32 mBufferLength;
nsIPersistentProperties* mSubclass;
struct PLDHashTable mTable;
PLArenaPool mArena;
};
class nsPropertyElement : public nsIPropertyElement
{
public:
nsPropertyElement()
{
NS_INIT_ISUPPORTS();
}
nsPropertyElement(const PRUnichar *aKey, const PRUnichar *aValue)
: mKey(aKey), mValue(aValue)
{
NS_INIT_ISUPPORTS();
}
virtual ~nsPropertyElement() {}
NS_DECL_ISUPPORTS
static NS_METHOD
Create(nsISupports *aOuter, REFNSIID aIID, void **aResult);
// nsIPropertyElement methods:
NS_IMETHOD GetKey(PRUnichar **aReturnKey);
NS_IMETHOD GetValue(PRUnichar **aReturnValue);
NS_IMETHOD SetKey(const PRUnichar* aKey);
NS_IMETHOD SetValue(const PRUnichar* aValue);
protected:
nsString mKey;
nsString mValue;
};
#endif /* nsPersistentProperties_h___ */