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lightning-sunbird  0.9+nobinonly
nsDataFlavor.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
00004  *
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
00007  * the License. You may obtain a copy of the License at
00008  * http://www.mozilla.org/MPL/
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  *   Dan Rosen <dr@netscape.com>
00024  *
00025  * Alternatively, the contents of this file may be used under the terms of
00026  * either the GNU General Public License Version 2 or later (the "GPL"), or
00027  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
00028  * in which case the provisions of the GPL or the LGPL are applicable instead
00029  * of those above. If you wish to allow use of your version of this file only
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00037  * ***** END LICENSE BLOCK ***** */
00038 
00039 #include "nsDataFlavor.h"
00040 #include "nsReadableUtils.h"
00041 
00042 static NS_DEFINE_IID(kIDataFlavor, NS_IDATAFLAVOR_IID);
00043 
00044 NS_IMPL_ADDREF(nsDataFlavor)
00045 NS_IMPL_RELEASE(nsDataFlavor)
00046 
00047 //-------------------------------------------------------------------------
00048 //
00049 // DataFlavor constructor
00050 //
00051 //-------------------------------------------------------------------------
00052 nsDataFlavor::nsDataFlavor()
00053 {
00054 }
00055 
00056 //-------------------------------------------------------------------------
00057 //
00058 // DataFlavor destructor
00059 //
00060 //-------------------------------------------------------------------------
00061 nsDataFlavor::~nsDataFlavor()
00062 {
00063 }
00064 
00071 nsresult nsDataFlavor::QueryInterface(const nsIID& aIID, void** aInstancePtr)
00072 {
00073 
00074   if (NULL == aInstancePtr) {
00075     return NS_ERROR_NULL_POINTER;
00076   }
00077 
00078   nsresult rv = NS_NOINTERFACE;
00079 
00080   if (aIID.Equals(kIDataFlavor)) {
00081     *aInstancePtr = (void*) ((nsIDataFlavor*)this);
00082     NS_ADDREF_THIS();
00083     return NS_OK;
00084   }
00085 
00086   return rv;
00087 }
00088 
00093 NS_METHOD nsDataFlavor::Init(const nsString & aMimeType, const nsString & aHumanPresentableName)
00094 {
00095   mMimeType = aMimeType;
00096   mHumanPresentableName = aHumanPresentableName;
00097 
00098   char * str = ToNewCString(mMimeType);
00099 
00100   delete[] str;
00101 
00102   return NS_OK;
00103 }
00104 
00109 NS_METHOD nsDataFlavor::GetMimeType(nsString & aMimeStr) const
00110 {
00111   aMimeStr = mMimeType;
00112   return NS_OK;
00113 }
00114 
00119 NS_METHOD nsDataFlavor::GetHumanPresentableName(nsString & aHumanPresentableName) const
00120 {
00121   aHumanPresentableName = mHumanPresentableName;
00122   return NS_OK;
00123 }
00124 
00129 NS_METHOD nsDataFlavor::Equals(const nsIDataFlavor * aDataFlavor)
00130 {
00131   nsString mimeInQues;
00132   aDataFlavor->GetMimeType(mimeInQues);
00133 
00134   return (mMimeType.Equals(mimeInQues)?NS_OK:NS_ERROR_FAILURE);
00135 }
00136 
00137 
00144 NS_METHOD nsDataFlavor::GetPredefinedDataFlavor(nsString & aStr, 
00145                                                 nsIDataFlavor ** aDataFlavor)
00146 {
00147   return NS_OK;
00148 }