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lightning-sunbird  0.9+nobinonly
PropertyBag.cpp
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
00003  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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00005  * The contents of this file are subject to the Mozilla Public License Version
00006  * 1.1 (the "License"); you may not use this file except in compliance with
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00009  *
00010  * Software distributed under the License is distributed on an "AS IS" basis,
00011  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
00012  * for the specific language governing rights and limitations under the
00013  * License.
00014  *
00015  * The Original Code is mozilla.org code.
00016  *
00017  * The Initial Developer of the Original Code is
00018  * Netscape Communications Corporation.
00019  * Portions created by the Initial Developer are Copyright (C) 1998
00020  * the Initial Developer. All Rights Reserved.
00021  *
00022  * Contributor(s):
00023  *
00024  * Alternatively, the contents of this file may be used under the terms of
00025  * either the GNU General Public License Version 2 or later (the "GPL"), or
00026  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00027  * in which case the provisions of the GPL or the LGPL are applicable instead
00028  * of those above. If you wish to allow use of your version of this file only
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00036  * ***** END LICENSE BLOCK ***** */
00037 
00038 #include "StdAfx.h"
00039 
00040 #include "PropertyBag.h"
00041 
00042 
00043 CPropertyBag::CPropertyBag()
00044 {
00045 }
00046 
00047 
00048 CPropertyBag::~CPropertyBag()
00049 {
00050 }
00051 
00052 
00054 // IPropertyBag implementation
00055 
00056 HRESULT STDMETHODCALLTYPE CPropertyBag::Read(/* [in] */ LPCOLESTR pszPropName, /* [out][in] */ VARIANT __RPC_FAR *pVar, /* [in] */ IErrorLog __RPC_FAR *pErrorLog)
00057 {
00058     if (pszPropName == NULL)
00059     {
00060         return E_INVALIDARG;
00061     }
00062     if (pVar == NULL)
00063     {
00064         return E_INVALIDARG;
00065     }
00066 
00067     VARTYPE vt = pVar->vt;
00068     VariantInit(pVar);
00069 
00070     for (unsigned long i = 0; i < m_PropertyList.GetSize(); i++)
00071     {
00072         if (wcsicmp(m_PropertyList.GetNameOf(i), pszPropName) == 0)
00073         {
00074             const VARIANT *pvSrc = m_PropertyList.GetValueOf(i);
00075             if (!pvSrc)
00076             {
00077                 return E_FAIL;
00078             }
00079             CComVariant vNew;
00080             HRESULT hr = (vt == VT_EMPTY) ?
00081                 vNew.Copy(pvSrc) : vNew.ChangeType(vt, pvSrc);
00082             if (FAILED(hr))
00083             {
00084                 return E_FAIL;
00085             }
00086             // Copy the new value
00087             vNew.Detach(pVar);
00088             return S_OK;
00089         }
00090     }
00091 
00092     // Property does not exist in the bag
00093     return E_FAIL;
00094 }
00095 
00096 
00097 HRESULT STDMETHODCALLTYPE CPropertyBag::Write(/* [in] */ LPCOLESTR pszPropName, /* [in] */ VARIANT __RPC_FAR *pVar)
00098 {
00099     if (pszPropName == NULL)
00100     {
00101         return E_INVALIDARG;
00102     }
00103     if (pVar == NULL)
00104     {
00105         return E_INVALIDARG;
00106     }
00107 
00108     CComBSTR bstrName(pszPropName);
00109     m_PropertyList.AddOrReplaceNamedProperty(bstrName, *pVar);
00110 
00111     return S_OK;
00112 }
00113