isf.cpp

很好用的ftp源码

/*****************************************************************************\
    FILE:   isf.cpp

    DESCRIPTION:
        This is a base class that implements the default behavior of IShellFolder.
\*****************************************************************************/

#include "priv.h"
#include "isf.h"
#include <shlobj.h>



/*****************************************************************************\
    FUNCTION: IShellFolder::ParseDisplayName

    DESCRIPTION:
\*****************************************************************************/
HRESULT CBaseFolder::ParseDisplayName(HWND hwnd, LPBC pbcReserved, LPOLESTR pwszDisplayName,
                        ULONG * pchEaten, LPITEMIDLIST * ppidl, ULONG *pdwAttributes)
{
    if (pdwAttributes)
        *pdwAttributes = 0;

    if (ppidl)
        *ppidl = NULL;

    return E_NOTIMPL;
}

/*****************************************************************************\
    FUNCTION: IShellFolder::EnumObjects

    DESCRIPTION:
\*****************************************************************************/
HRESULT CBaseFolder::EnumObjects(HWND hwndOwner, DWORD grfFlags, IEnumIDList ** ppenumIDList)
{
    if (ppenumIDList)
        *ppenumIDList = NULL;

    return E_NOTIMPL;
}


/*****************************************************************************\
    FUNCTION: IShellFolder::BindToObject

    DESCRIPTION:
\*****************************************************************************/
HRESULT CBaseFolder::BindToObject(LPCITEMIDLIST pidl, LPBC pbc, REFIID riid, LPVOID * ppvObj)
{
    if (ppvObj)
        *ppvObj = NULL;

    return E_NOTIMPL;
}


/*****************************************************************************\
     FUNCTION: IShellFolder::BindToStorage
 
    DESCRIPTION:
         This should be implemented so people can use the File.Open and File.SaveAs
    dialogs with this ShellFolder.
\*****************************************************************************/
HRESULT CBaseFolder::BindToStorage(LPCITEMIDLIST pidl, LPBC pbc, REFIID riid, LPVOID * ppvObj)
{
    if (ppvObj)
        *ppvObj = NULL;

    return E_NOTIMPL;
}


/*****************************************************************************\
     FUNCTION: IShellFolder::CompareIDs
 
    DESCRIPTION:
         This should be implemented so people can use the File.Open and File.SaveAs
    dialogs with this ShellFolder.
\*****************************************************************************/
HRESULT CBaseFolder::CompareIDs(LPARAM ici, LPCITEMIDLIST pidl1, LPCITEMIDLIST pidl2)
{
    return E_NOTIMPL;
}


/*****************************************************************************\
     FUNCTION: IShellFolder::CreateViewObject
 
    DESCRIPTION:
         This should be implemented so people can use the File.Open and File.SaveAs
    dialogs with this ShellFolder.
\*****************************************************************************/
HRESULT CBaseFolder::CreateViewObject(HWND hwndOwner, REFIID riid, LPVOID * ppvObj)
{
    HRESULT hr = E_NOINTERFACE;

    *ppvObj = NULL;
    if (IsEqualIID(riid, IID_IShellView))
        hr = _CreateShellView(hwndOwner, ppvObj);
    else if (IsEqualIID(riid, IID_IContextMenu))
        hr = _GetUIObjectOf(hwndOwner, 0, NULL, riid, 0, ppvObj, TRUE);
    else
        hr = E_NOINTERFACE;

    return hr;
}


BOOL IsShellIntegration(void)
{
    BOOL fResult = FALSE;
    HINSTANCE hInst = LoadLibrary(TEXT("shell32.dll"));

    if (EVAL(hInst))
    {
        LPVOID pv = GetProcAddress(hInst, "DllGetVersion");
        if (pv)
            fResult = TRUE;
        FreeLibrary(hInst);
    }
    
    return fResult;
}

HRESULT CBaseFolder::_CreateShellView(HWND hwndOwner, void ** ppvObj, LONG lEvents, FOLDERVIEWMODE fvm, 
                                       IShellFolderViewCB * psfvCallBack, LPCITEMIDLIST pidl, LPFNVIEWCALLBACK pfnCallback)
{
    HRESULT hr;
    IShellFolder * psf;

    hr = this->QueryInterface(IID_IShellFolder, (LPVOID *) &psf);
    if (EVAL(SUCCEEDED(hr)))
    {
        SFV_CREATE sfvCreate =      // SHCreateShellFolderView struct
        {
                sizeof(SFV_CREATE),
                psf,            // psf
                NULL,           // psvOuter
                psfvCallBack    // psfvcb - (IShellFolderViewCB *)
        };

        // SHCreateShellFolderView isn't in the original shell.  We can't rely on the 
        // the Delayload code because it's exported by ordinal and the original
        // shell had a different exports by the same number.
        if (IsShellIntegration())
            hr = _SHCreateShellFolderView(&sfvCreate, (LPSHELLVIEW FAR*)ppvObj);
        else
            hr = E_FAIL;  // Force us to go into the next try.

        // If we aren't running on a machine with Shell Integration, SHCreateShellFolderView will fail.
        if (FAILED(hr))
        {
            CSFV csfv;

            csfv.cbSize = sizeof(csfv);
            csfv.pshf = psf;
            csfv.psvOuter = (IShellView *) psfvCallBack;      // Hack but it works...
            csfv.pidl = pidl;           // This is feed to SFVM_GETNOTIFY so it needs to be a pidlTarget.
            csfv.lEvents = lEvents;
            csfv.pfnCallback = pfnCallback;
            csfv.fvm = fvm;         // vs. FVM_ICON, ...

            hr = SHCreateShellFolderViewEx(&csfv, (LPSHELLVIEW FAR*)ppvObj);
            if (SUCCEEDED(hr))
                psfvCallBack->AddRef();     // We gave them a ref.
        }

        psf->Release();
    }

    return hr;
}


/*****************************************************************************\
     FUNCTION: IShellFolder::GetAttributesOf
 
    DESCRIPTION:
\*****************************************************************************/
HRESULT CBaseFolder::GetAttributesOf(UINT cpidl, LPCITEMIDLIST *apidl, ULONG *rgfInOut)
{
    return E_NOTIMPL;
}


/*****************************************************************************\
     FUNCTION: IShellFolder::GetUIObjectOf
 
    DESCRIPTION:
\*****************************************************************************/
HRESULT CBaseFolder::GetUIObjectOf(HWND hwndOwner, UINT cidl, LPCITEMIDLIST rgpidl[],
                                REFIID riid, UINT * prgfInOut, LPVOID * ppvObj)
{
    return E_NOTIMPL;
}


/*****************************************************************************\
    DESCRIPTION:
\*****************************************************************************/
HRESULT CBaseFolder::_GetUIObjectOf(HWND hwndOwner, UINT cidl, LPCITEMIDLIST rgpidl[],
                                REFIID riid, UINT * prgfInOut, LPVOID * ppvOut, BOOL fFromCreateViewObject)
{
    return GetUIObjectOf(hwndOwner, cidl, rgpidl, riid, prgfInOut, ppvOut);
}


/*****************************************************************************\
     FUNCTION: IShellFolder::GetDisplayNameOf
 
    DESCRIPTION:
\*****************************************************************************/
HRESULT CBaseFolder::GetDisplayNameOf(LPCITEMIDLIST pidl, DWORD shgno, LPSTRRET pStrRet)
{
    return E_NOTIMPL;
}


/*****************************************************************************\
     FUNCTION: IShellFolder::SetNameOf
 
    DESCRIPTION:
\*****************************************************************************/
HRESULT CBaseFolder::SetNameOf(HWND hwndOwner, LPCITEMIDLIST pidl, LPCOLESTR pwszName,
                                DWORD dwReserved, LPITEMIDLIST *ppidlOut)
{
    return E_NOTIMPL;
}


//===========================
// *** IShellFolder2 Interface ***
//===========================

//===========================
// *** IPersist Interface ***
//===========================

/*****************************************************************************\
     FUNCTION: IPersist::GetClassID
 
    DESCRIPTION:
\*****************************************************************************/
HRESULT CBaseFolder::GetClassID(LPCLSID pClassID)
{
    HRESULT hr = E_INVALIDARG;

    if (EVAL(pClassID))
    {
        if (EVAL(m_pClassID))
        {
            *pClassID = *m_pClassID;
            hr = S_OK;
        }
        else
            hr = E_FAIL;
    }

    return hr;
}

//===========================
// *** IPersistFolder Interface ***
//===========================