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446 lines
12 KiB
446 lines
12 KiB
//+-------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1993.
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//
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// File: share.cxx
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//
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// Contents: Shell extension handler for sharing
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//
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// Classes: CShare
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//
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// History: 4-Apr-95 BruceFo Created
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//
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//--------------------------------------------------------------------------
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#include "headers.hxx"
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#pragma hdrstop
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#include "shrpage.hxx"
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#include "shrpage2.hxx"
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#include "share.hxx"
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#include "acl.hxx"
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#include "util.hxx"
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#include "resource.h"
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//--------------------------------------------------------------------------
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//+-------------------------------------------------------------------------
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//
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// Member: CShare::CShare
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//
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// Synopsis: Constructor
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//
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// History: 4-Apr-95 BruceFo Created
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//
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//--------------------------------------------------------------------------
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CShare::CShare(VOID) :
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_uRefs(0),
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_fPathChecked(FALSE),
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_fMultipleSharesSelected (FALSE)
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{
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INIT_SIG(CShare);
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AddRef(); // give it the correct initial reference count. add to the DLL reference count
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_szPath[0] = 0;
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}
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//+-------------------------------------------------------------------------
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//
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// Member: CShare::~CShare
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//
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// Synopsis: Destructor
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//
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// History: 4-Apr-95 BruceFo Created
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//
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//--------------------------------------------------------------------------
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CShare::~CShare()
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{
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CHECK_SIG(CShare);
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}
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//
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// Retrieve a PIDL from the HIDA.
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//
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STDAPI_(LPITEMIDLIST)
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IDA_FullIDList(
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CIDA * pidaIn
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, UINT idxIn
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)
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{
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LPITEMIDLIST pidl = NULL;
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LPCITEMIDLIST pidlParent = IDA_GetIDListPtr( pidaIn, (UINT) -1 );
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if ( NULL != pidlParent )
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{
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LPCITEMIDLIST pidlRel = IDA_GetIDListPtr( pidaIn, idxIn );
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if ( NULL != pidlRel )
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{
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pidl = ILCombine( pidlParent, pidlRel );
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}
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}
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return pidl;
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}
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//+-------------------------------------------------------------------------
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//
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// Member: CShare::Initialize
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//
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// Derivation: IShellExtInit
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//
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// Synopsis: Initialize the shell extension. Stashes away the argument data.
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//
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// History: 4-Apr-95 BruceFo Created
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//
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// Notes: This method can be called more than once.
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//
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//--------------------------------------------------------------------------
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STDMETHODIMP
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CShare::Initialize(
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LPCITEMIDLIST /*pidlFolder*/,
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LPDATAOBJECT pDataObject,
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HKEY /*hkeyProgID*/
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)
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{
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CHECK_SIG(CShare);
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HRESULT hr = E_FAIL;
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if (pDataObject && _szPath[0] == 0)
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{
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STGMEDIUM medium;
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FORMATETC fmte = {CF_HDROP, NULL, DVASPECT_CONTENT, -1, TYMED_HGLOBAL};
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hr = pDataObject->GetData(&fmte, &medium);
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if (SUCCEEDED(hr))
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{
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// Get the count of shares that have been selected. Display the page only
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// if 1 share is selected but not for multiple shares.
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UINT nCntFiles = ::DragQueryFile((HDROP) medium.hGlobal, (UINT)-1, _szPath, ARRAYLEN (_szPath));
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if ( nCntFiles > 1 )
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{
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_fMultipleSharesSelected = TRUE;
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}
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DragQueryFile((HDROP)medium.hGlobal, 0, _szPath, ARRAYLEN(_szPath));
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ReleaseStgMedium(&medium);
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hr = S_OK;
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}
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}
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if (FAILED(hr) && _szPath[0] == 0 )
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{
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STGMEDIUM med;
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LPIDA pida = DataObj_GetHIDA(pDataObject, &med);
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if (pida)
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{
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if (pida->cidl > 1)
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{
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_fMultipleSharesSelected = TRUE;
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}
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// Only grab the first guy.
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LPITEMIDLIST pidl = IDA_FullIDList( pida, 0 );
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if ( NULL != pidl )
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{
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LPCITEMIDLIST pidlParent = IDA_GetIDListPtr( pida, (UINT) -1 );
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if (NULL != pidlParent)
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{
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IShellFolder * psf;
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LPCITEMIDLIST pidlLast;
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hr = SHBindToParent(pidl, IID_IShellFolder, (void**)&psf, &pidlLast);
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if (SUCCEEDED(hr))
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{
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hr = DisplayNameOf(psf, pidlLast, SHGDN_NORMAL | SHGDN_FORPARSING, _szPath, ARRAYLEN(_szPath));
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psf->Release();
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}
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}
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ILFree(pidl);
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}
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HIDA_ReleaseStgMedium(pida, &med);
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}
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}
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return hr;
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}
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//+-------------------------------------------------------------------------
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//
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// Member: CShare::AddPages
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//
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// Derivation: IShellPropSheetExt
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//
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// Synopsis: (from shlobj.h)
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// "The explorer calls this member function when it finds a
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// registered property sheet extension for a particular type
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// of object. For each additional page, the extension creates
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// a page object by calling CreatePropertySheetPage API and
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// calls lpfnAddPage.
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//
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// Arguments: lpfnAddPage -- Specifies the callback function.
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// lParam -- Specifies the opaque handle to be passed to the
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// callback function.
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//
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// History: 4-Apr-95 BruceFo Created
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//
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//--------------------------------------------------------------------------
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STDMETHODIMP
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CShare::AddPages(
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LPFNADDPROPSHEETPAGE lpfnAddPage,
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LPARAM lParam
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)
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{
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CHECK_SIG(CShare);
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if (!_fMultipleSharesSelected && _OKToShare())
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{
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//
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// Create a property sheet page object from a dialog box.
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//
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BOOL bSimpleUI = IsSimpleUI();
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CShareBase* pPage = NULL;
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if (bSimpleUI)
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{
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pPage = new CSimpleSharingPage();
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}
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else
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{
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pPage = new CSharingPropertyPage(FALSE);
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}
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if (NULL != pPage)
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{
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appAssert(_szPath[0]);
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HRESULT hr = pPage->InitInstance(_szPath);
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if (SUCCEEDED(hr))
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{
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PROPSHEETPAGE psp;
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psp.dwSize = sizeof(psp); // no extra data.
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psp.dwFlags = PSP_USEREFPARENT | PSP_USECALLBACK;
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psp.hInstance = g_hInstance;
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psp.pszTemplate = bSimpleUI ? MAKEINTRESOURCE(IDD_SIMPLE_SHARE_PROPERTIES) : MAKEINTRESOURCE(IDD_SHARE_PROPERTIES);
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psp.hIcon = NULL;
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psp.pszTitle = NULL;
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psp.pfnDlgProc = CShareBase::DlgProcPage;
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psp.lParam = (LPARAM)pPage; // transfer ownership
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psp.pfnCallback = CShareBase::PageCallback;
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psp.pcRefParent = &g_NonOLEDLLRefs;
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// This AddRef's pPage. See CShareBase::PageCallback.
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HPROPSHEETPAGE hpage = CreatePropertySheetPage(&psp);
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if (NULL != hpage)
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{
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BOOL fAdded = (*lpfnAddPage)(hpage, lParam);
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if (!fAdded)
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{
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// This Release's pPage.
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DestroyPropertySheetPage(hpage);
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}
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// else the property sheet has a reference to pPage.
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}
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}
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// Release initial ref. This frees pPage is anything failed above.
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pPage->Release();
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}
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}
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return S_OK;
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}
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//+-------------------------------------------------------------------------
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//
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// Member: CShare::ReplacePages
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//
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// Derivation: IShellPropSheetExt
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//
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// Synopsis: (From shlobj.h)
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// "The explorer never calls this member of property sheet
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// extensions. The explorer calls this member of control panel
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// extensions, so that they can replace some of default control
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// panel pages (such as a page of mouse control panel)."
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//
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// Arguments: uPageID -- Specifies the page to be replaced.
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// lpfnReplace -- Specifies the callback function.
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// lParam -- Specifies the opaque handle to be passed to the
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// callback function.
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//
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// History: 4-Apr-95 BruceFo Created
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//
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//--------------------------------------------------------------------------
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STDMETHODIMP
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CShare::ReplacePage(
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UINT /*uPageID*/,
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LPFNADDPROPSHEETPAGE /*lpfnReplaceWith*/,
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LPARAM /*lParam*/
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)
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{
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CHECK_SIG(CShare);
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appAssert(!"CShare::ReplacePage called, not implemented");
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return E_NOTIMPL;
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}
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//+-------------------------------------------------------------------------
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//
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// Member: CShare::QueryContextMenu
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//
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// Derivation: IContextMenu
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//
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// Synopsis: Called when shell wants to add context menu items.
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//
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// History: 4-Apr-95 BruceFo Created
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//
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//--------------------------------------------------------------------------
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STDMETHODIMP
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CShare::QueryContextMenu(
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HMENU hmenu,
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UINT indexMenu,
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UINT idCmdFirst,
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UINT /*idCmdLast*/,
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UINT uFlags
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)
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{
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CHECK_SIG(CShare);
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if ((hmenu == NULL) || (uFlags & (CMF_DEFAULTONLY | CMF_VERBSONLY)))
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{
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return S_OK;
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}
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int cNumberAdded = 0;
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UINT idCmd = idCmdFirst;
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// 159891 remove context menu if multiple shares selected
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if (!_fMultipleSharesSelected && _OKToShare())
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{
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appAssert(_szPath[0]);
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WCHAR szShareMenuItem[50];
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LoadString(g_hInstance, IDS_SHARING, szShareMenuItem, ARRAYLEN(szShareMenuItem));
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if (InsertMenu(hmenu, indexMenu, MF_STRING | MF_BYPOSITION, idCmd++, szShareMenuItem))
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{
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cNumberAdded++;
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InsertMenu(hmenu, indexMenu, MF_SEPARATOR | MF_BYPOSITION, 0, NULL);
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}
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}
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return ResultFromScode(MAKE_SCODE(SEVERITY_SUCCESS, FACILITY_NULL, (USHORT)cNumberAdded));
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}
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//+-------------------------------------------------------------------------
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//
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// Member: CShare::InvokeCommand
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//
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// Derivation: IContextMenu
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//
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// Synopsis: Called when the shell wants to invoke a context menu item.
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//
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// History: 4-Apr-95 BruceFo Created
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//
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//--------------------------------------------------------------------------
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STDMETHODIMP
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CShare::InvokeCommand(
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LPCMINVOKECOMMANDINFO pici
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)
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{
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CHECK_SIG(CShare);
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HRESULT hr = E_INVALIDARG; // assume error.
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if (0 == HIWORD(pici->lpVerb))
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{
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appAssert(_szPath[0]);
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hr = ShowShareFolderUIW(pici->hwnd, _szPath);
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}
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else
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{
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// FEATURE: compare the strings if not a MAKEINTRESOURCE?
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}
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return hr;
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}
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//+-------------------------------------------------------------------------
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//
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// Member: CShare::GetCommandString
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//
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// Derivation: IContextMenu
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//
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// Synopsis: Called when the shell wants to get a help string or the
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// menu string.
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//
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// History: 4-Apr-95 BruceFo Created
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//
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//--------------------------------------------------------------------------
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STDMETHODIMP
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CShare::GetCommandString(
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UINT_PTR /*idCmd*/,
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UINT uType,
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UINT* /*pwReserved*/,
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LPSTR pszName,
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UINT cchMax
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)
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{
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CHECK_SIG(CShare);
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if (uType == GCS_HELPTEXT)
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{
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LoadStringW(g_hInstance, IDS_MENUHELP, (LPWSTR)pszName, cchMax);
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return NOERROR;
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}
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else
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{
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LoadStringW(g_hInstance, IDS_SHARING, (LPWSTR)pszName, cchMax);
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return NOERROR;
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}
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}
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//+-------------------------------------------------------------------------
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//
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// Member: CShare::_OKToShare
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//
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// Synopsis: Determine if it is ok to share the current object. It stashes
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// away the current path by querying the cached IDataObject.
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//
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// History: 4-Apr-95 BruceFo Created
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//
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//--------------------------------------------------------------------------
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BOOL
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CShare::_OKToShare(VOID)
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{
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CHECK_SIG(CShare);
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if (!_fPathChecked)
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{
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_fPathChecked = TRUE;
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_fOkToSharePath = (S_OK == CanShareFolderW(_szPath));
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}
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return _fOkToSharePath;
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}
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