mirror of
https://github.com/mozilla/gecko-dev.git
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138 lines
2.9 KiB
C++
138 lines
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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/*
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The default implementation for nsIString.
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*/
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#include "nsIString.h"
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#include "nsStr.h"
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////////////////////////////////////////////////////////////////////////
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static NS_DEFINE_IID(kIStringIID, NS_ISTRING_IID);
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////////////////////////////////////////////////////////////////////////
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class nsStringImpl : public nsIString
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{
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protected:
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nsStr mStr;
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public:
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nsStringImpl();
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virtual ~nsStringImpl();
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// nsISupports interface
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NS_DECL_ISUPPORTS
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// nsIString interface
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NS_IMETHOD Init(eCharSize aCharSize);
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NS_IMETHOD SetStr(nsStr* aStr);
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NS_IMETHOD GetStr(nsStr* aStr);
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NS_IMETHOD GetImmutableStr(const nsStr** aStr);
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};
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////////////////////////////////////////////////////////////////////////
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nsStringImpl::nsStringImpl()
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{
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NS_INIT_REFCNT();
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nsStr::Initialize(mStr, kDefaultCharSize);
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}
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nsStringImpl::~nsStringImpl()
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{
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nsStr::Destroy(mStr);
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}
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PR_IMPLEMENT(nsresult)
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NS_NewString(nsIString** aString)
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{
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NS_PRECONDITION(aString != nsnull, "null ptr");
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if (! aString)
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return NS_ERROR_NULL_POINTER;
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nsStringImpl* s = new nsStringImpl();
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if (! s)
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return NS_ERROR_OUT_OF_MEMORY;
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NS_ADDREF(s);
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*aString = s;
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return NS_OK;
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}
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////////////////////////////////////////////////////////////////////////
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// nsISupports interface
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NS_IMPL_ADDREF(nsStringImpl);
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NS_IMPL_RELEASE(nsStringImpl);
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NS_IMPL_QUERY_INTERFACE(nsStringImpl, kIStringIID);
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////////////////////////////////////////////////////////////////////////
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NS_IMETHODIMP
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nsStringImpl::Init(eCharSize aCharSize)
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{
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nsStr::Initialize(mStr, aCharSize);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsStringImpl::SetStr(nsStr* aStr)
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{
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NS_PRECONDITION(aStr != nsnull, "null ptr");
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if (! aStr)
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return NS_ERROR_NULL_POINTER;
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nsStr::Assign(mStr, *aStr, 0, aStr->mLength);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsStringImpl::GetStr(nsStr* aStr)
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{
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NS_PRECONDITION(aStr != nsnull, "null ptr");
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if (! aStr)
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return NS_ERROR_NULL_POINTER;
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nsStr::Assign(*aStr, mStr, 0, mStr.mLength);
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return NS_OK;
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}
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NS_IMETHODIMP
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nsStringImpl::GetImmutableStr(const nsStr** aImmutableStr)
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{
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NS_PRECONDITION(aImmutableStr != nsnull, "null ptr");
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if (! aImmutableStr)
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return NS_ERROR_NULL_POINTER;
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*aImmutableStr = &mStr;
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return NS_OK;
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}
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