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lightning-sunbird  0.9+nobinonly
DropTarget.h
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00001 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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  *   Adam Lock <adamlock@eircom.net>
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
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00034  * the provisions above, a recipient may use your version of this file under
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00036  *
00037  * ***** END LICENSE BLOCK ***** */
00038 #ifndef DROPTARGET_H
00039 #define DROPTARGET_H
00040 
00041 #include "MozillaBrowser.h"
00042 
00043 // Simple drop target implementation
00044 
00045 class CDropTarget : public CComObjectRootEx<CComSingleThreadModel>,
00046                     public IDropTarget
00047 {
00048 public:
00049     CDropTarget();
00050     virtual ~CDropTarget();
00051 
00052 BEGIN_COM_MAP(CDropTarget)
00053     COM_INTERFACE_ENTRY(IDropTarget)
00054 END_COM_MAP()
00055 
00056     // Data object currently being dragged
00057     CIPtr(IDataObject) m_spDataObject;
00058 
00059     // Owner of this object
00060     CMozillaBrowser *m_pOwner;
00061 
00062     // Sets the owner of this object
00063     void SetOwner(CMozillaBrowser *pOwner);
00064     // Helper method to extract a URL from an internet shortcut file
00065     HRESULT CDropTarget::GetURLFromFile(const TCHAR *pszFile, tstring &szURL);
00066 
00067 // IDropTarget
00068     virtual HRESULT STDMETHODCALLTYPE DragEnter(/* [unique][in] */ IDataObject __RPC_FAR *pDataObj, /* [in] */ DWORD grfKeyState, /* [in] */ POINTL pt, /* [out][in] */ DWORD __RPC_FAR *pdwEffect);
00069     virtual HRESULT STDMETHODCALLTYPE DragOver(/* [in] */ DWORD grfKeyState, /* [in] */ POINTL pt, /* [out][in] */ DWORD __RPC_FAR *pdwEffect);
00070     virtual HRESULT STDMETHODCALLTYPE DragLeave(void);
00071     virtual HRESULT STDMETHODCALLTYPE Drop(/* [unique][in] */ IDataObject __RPC_FAR *pDataObj, /* [in] */ DWORD grfKeyState, /* [in] */ POINTL pt, /* [out][in] */ DWORD __RPC_FAR *pdwEffect);
00072 };
00073 
00074 typedef CComObject<CDropTarget> CDropTargetInstance;
00075 
00076 #endif