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// DDShellExt.cpp : Implementation of CDDShellExt
#include "tchar.h"
#include "DDShellExt.h"
#include "ClientCatchcopy.h"
#include <Shlwapi.h>
extern HINSTANCE g_hInst;
extern long g_cDllRef;
CDDShellExt::CDDShellExt(): m_cRef(1)
{
InterlockedIncrement(&g_cDllRef);
}
CDDShellExt::~CDDShellExt()
{
InterlockedDecrement(&g_cDllRef);
}
// Query to the interface the component supported.
IFACEMETHODIMP CDDShellExt::QueryInterface(REFIID riid, void **ppv)
{
if(riid == IID_IUnknown || riid == IID_IContextMenu)
{
*ppv = static_cast<IContextMenu*>(this);
}
else if (riid == IID_IShellExtInit)
{
*ppv = static_cast<IShellExtInit*>(this);
}
else
{
*ppv = NULL;
return E_NOINTERFACE;
}
reinterpret_cast<IUnknown*>(*ppv)->AddRef();
return S_OK;
}
// Increase the reference count for an interface on an object.
IFACEMETHODIMP_(ULONG) CDDShellExt::AddRef()
{
return InterlockedIncrement(&m_cRef);
}
// Decrease the reference count for an interface on an object.
IFACEMETHODIMP_(ULONG) CDDShellExt::Release()
{
ULONG cRef = InterlockedDecrement(&m_cRef);
if (0 == cRef)
delete this;
return cRef;
}
STDMETHODIMP CDDShellExt::Initialize(LPCITEMIDLIST pidlFolder,LPDATAOBJECT pDO,HKEY hProgID)
{
(void)hProgID;
if(!connected)
{
bool b = m_ac.connectToServer();
if (b==true)
{
connected=true;
}
else
return E_FAIL;
}
FORMATETC fmt={CF_HDROP,NULL,DVASPECT_CONTENT,-1,TYMED_HGLOBAL};
STGMEDIUM stg={TYMED_HGLOBAL};
HDROP hDrop;
fDestDir[0]=0;
if (!SHGetPathFromIDList(pidlFolder,fDestDir))
{
#ifdef CATCHCOPY_EXPLORER_PLUGIN_DEBUG
MessageBox(NULL,L"Initialize",L"E_FAIL 1",MB_OK);
#endif // CATCHCOPY_EXPLORER_PLUGIN_DEBUG
return E_FAIL;
}
// Detect if it's explorer that started the operation by enumerating available
// clipboard formats and searching for one that only explorer uses
IEnumFORMATETC *en;
FORMATETC fmt2;
WCHAR fmtName[65535]=L"\0";
fFromExplorer=false;
pDO->EnumFormatEtc(DATADIR_GET,&en);
while(en->Next(1,&fmt2,NULL)==S_OK){
GetClipboardFormatName(fmt2.cfFormat,fmtName,sizeof(fmtName));
if (!wcscmp(fmtName,CFSTR_SHELLIDLIST)) fFromExplorer=true;
}
en->Release();
// Look for CF_HDROP data in the data object. If there
// is no such data, return an error back to Explorer.
if (FAILED(pDO->GetData(&fmt,&stg)))
{
#ifdef CATCHCOPY_EXPLORER_PLUGIN_DEBUG
MessageBox(NULL,L"Initialize",L"E_INVALIDARG 2",MB_OK);
#endif // CATCHCOPY_EXPLORER_PLUGIN_DEBUG
return E_INVALIDARG;
}
// Get a pointer to the actual data.
hDrop=(HDROP)GlobalLock(stg.hGlobal);
// Make sure it worked.
if (hDrop==NULL)
{
#ifdef CATCHCOPY_EXPLORER_PLUGIN_DEBUG
MessageBox(NULL,L"Initialize",L"E_INVALIDARG 1",MB_OK);
#endif // CATCHCOPY_EXPLORER_PLUGIN_DEBUG
return E_INVALIDARG;
}
UINT numFiles,i;
WCHAR fn[MAX_PATH]=L"";
numFiles=DragQueryFile(hDrop,0xFFFFFFFF,NULL,0);
if (numFiles)
{
for(i=0;i<numFiles;++i)
{
if(DragQueryFile(hDrop,i,fn,MAX_PATH))
sources.push_back(fn);
}
}
GlobalUnlock(stg.hGlobal);
ReleaseStgMedium(&stg);
return S_OK;
}
STDMETHODIMP CDDShellExt::QueryContextMenu(HMENU hmenu,UINT uMenuIndex,UINT uidFirstCmd,UINT uidLastCmd,UINT uFlags)
{
(void)uidLastCmd;
if(!m_ac.isConnected())
{
if(!m_ac.connectToServer())
return E_FAIL;
}
if (uFlags&CMF_DEFAULTONLY)
return MAKE_HRESULT(SEVERITY_SUCCESS,FACILITY_NULL,0);
int x=uidFirstCmd;
InsertMenu(hmenu,uMenuIndex++,MF_STRING|MF_BYPOSITION,x++,L"Copy with advanced software");
InsertMenu(hmenu,uMenuIndex++,MF_STRING|MF_BYPOSITION,x++,L"Move with advanced software");
int defItem=GetMenuDefaultItem(hmenu,false,0);
if (defItem==1) // 1: Copy
{
if (fFromExplorer)
SetMenuDefaultItem(hmenu,uidFirstCmd,false);
}
else if (defItem==2) //2: Move
{
SetMenuDefaultItem(hmenu,uidFirstCmd+1,false);
}
return MAKE_HRESULT(SEVERITY_SUCCESS,FACILITY_NULL,2);
}
STDMETHODIMP CDDShellExt::InvokeCommand ( LPCMINVOKECOMMANDINFO pInfo )
{
if(HIWORD(pInfo->lpVerb))
return E_INVALIDARG;
switch(LOWORD(pInfo->lpVerb))
{
case 0:// copy
if(!m_ac.addCopyWithDestination(sources,fDestDir))
return E_FAIL;
break;
case 1:// move
if(!m_ac.addMoveWithDestination(sources,fDestDir))
return E_FAIL;
break;
default :
return S_OK;
}
return S_OK;
}
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