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319 lines
6.8 KiB
319 lines
6.8 KiB
/*++
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Copyright (c) 1994-1998 Microsoft Corporation
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Module Name :
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dirbrows.cpp
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Abstract:
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Directory Browser Dialog. Allow browsing for directories only.
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optionally allows UNC conversions for remote paths.
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Author:
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Ronald Meijer (ronaldm)
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Project:
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Internet Services Manager
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Revision History:
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--*/
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//
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// Include Files
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//
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#include "stdafx.h"
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#include "common.h"
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#include "dirbrows.h"
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#include <dlgs.h>
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#ifdef _DEBUG
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#undef THIS_FILE
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static char BASED_CODE THIS_FILE[] = __FILE__;
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#endif
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extern HINSTANCE hDLLInstance;
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static
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int
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BrowseCallbackProc(
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IN HWND hwnd,
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IN UINT uMsg,
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IN LPARAM lParam,
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IN LPARAM lpData
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)
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/*++
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Routine Description:
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Callback function for the folder browser
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Arguments:
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hwnd : Handle to the browse dialog box. The callback function can
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send the following messages to this window:
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BFFM_ENABLEOK Enables the OK button if the wParam parameter
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is nonzero or disables it if wParam is zero.
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BFFM_SETSELECTION Selects the specified folder. The lParam
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parameter is the PIDL of the folder to select
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if wParam is FALSE, or it is the path of the
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folder otherwise.
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BFFM_SETSTATUSTEXT Sets the status text to the null-terminated
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string specified by the lParam parameter.
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uMsg : Value identifying the event. This parameter can be one of the
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following values:
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0 Initialize dir path. lParam is the path.
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BFFM_INITIALIZED The browse dialog box has finished
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initializing. lpData is NULL.
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BFFM_SELCHANGED The selection has changed. lpData
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is a pointer to the item identifier list for
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the newly selected folder.
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lParam : Message-specific value. For more information, see the
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description of uMsg.
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lpData : Application-defined value that was specified in the lParam
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member of the BROWSEINFO structure.
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Return Value:
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0
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--*/
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{
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lpData;
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static LPCTSTR lpstrDir = NULL;
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switch(uMsg)
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{
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case 0:
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lpstrDir = (LPCTSTR)lParam;
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break;
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case BFFM_INITIALIZED:
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//
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// Dialog initialized -- select desired folder
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//
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if (lpstrDir != NULL)
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{
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::SendMessage(hwnd, BFFM_SETSELECTION, TRUE, (LPARAM)lpstrDir);
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}
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break;
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}
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return 0;
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}
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CDirBrowseDlg::CDirBrowseDlg(
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IN CWnd * pParent OPTIONAL,
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IN LPCTSTR lpszInitialDir OPTIONAL
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)
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/*++
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Routine Description:
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Constructor for directory browser dialog
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Arguments:
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CWnd * pParent : Parent window or NULL
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LPCTSTR lpszInitialDir : Initial directory, or NULL for current directory
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Return Value:
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N/A
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--*/
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: m_strInitialDir(lpszInitialDir)
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{
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VERIFY(m_bstrTitle.LoadString(hDLLInstance, IDS_BROWSE_DIRECTORY));
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m_bi.pidlRoot = NULL;
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m_bi.hwndOwner = pParent ? pParent->m_hWnd : NULL;
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m_bi.pszDisplayName = m_szBuffer;
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m_bi.lpszTitle = m_bstrTitle;
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m_bi.ulFlags = BIF_RETURNFSANCESTORS | BIF_RETURNONLYFSDIRS,
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m_bi.lpfn = BrowseCallbackProc;
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m_bi.lParam = 0;
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//
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// Let the callback function know the default dir is
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//
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lpszInitialDir = !m_strInitialDir.IsEmpty()
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? (LPCTSTR)m_strInitialDir : NULL;
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BrowseCallbackProc(m_bi.hwndOwner, 0, (LPARAM)lpszInitialDir, NULL);
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}
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CDirBrowseDlg::~CDirBrowseDlg()
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/*++
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Routine Description:
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Destructor for directory browser dialog
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Arguments:
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N/A
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Return Value:
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N/A
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--*/
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{
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if (m_bi.pidlRoot != NULL)
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{
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LPITEMIDLIST pidl = (LPITEMIDLIST)m_bi.pidlRoot;
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//
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// Free using shell allocator
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//
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LPMALLOC pMalloc;
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if (::SHGetMalloc(&pMalloc) == NOERROR)
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{
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pMalloc->Free(pidl);
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pMalloc->Release();
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}
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}
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}
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/* virtual */
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int
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CDirBrowseDlg::DoModal()
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/*++
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Routine Description:
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Display the browser dialog, and fill in the selected directory path.
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Arguments:
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None
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Return Value:
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IDOK if the OK button was pressed, IDCANCEL otherwise.
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--*/
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{
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BOOL fSelectionMade = FALSE;
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//
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// Get the Shell's default allocator
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//
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LPMALLOC pMalloc;
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if (::SHGetMalloc(&pMalloc) == NOERROR)
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{
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LPITEMIDLIST pidl;
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if ((pidl = ::SHBrowseForFolder(&m_bi)) != NULL)
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{
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if (::SHGetPathFromIDList(pidl, m_szBuffer))
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{
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fSelectionMade = TRUE;
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}
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else
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{
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//
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// OK Pressed, but no path found
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//
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::AfxMessageBox(IDS_BAD_BROWSE);
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}
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//
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// Free the PIDL allocated by SHBrowseForFolder.
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//
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pMalloc->Free(pidl);
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}
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//
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// Release the shell's allocator.
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//
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pMalloc->Release();
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}
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return fSelectionMade ? IDOK : IDCANCEL;
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}
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LPCTSTR
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CDirBrowseDlg::GetFullPath(
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OUT CString & strName,
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IN BOOL fConvertToUNC
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) const
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/*++
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Routine Description:
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Get the full path selected. Optionally allow a remote path to be
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converted to a UNC path.
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Arguments:
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CString & strName : String in which to return the directory path
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BOOL fConvertToUNC : If TRUE, then if the drive selected is a network
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drive, convert the path to a UNC path.
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Return Value:
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A pointer to the directory path string or NULL in case of error.
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Notes:
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This function should be called only after the dialog has been dismissed.
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--*/
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{
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LPCTSTR lp = NULL;
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try
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{
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strName = m_szBuffer;
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lp = strName;
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if (fConvertToUNC && lp != NULL)
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{
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//
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// If it's network drive, convert it to a UNC path
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//
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CString strDrive, strUNC;
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if (IsNetworkPath(strName, &strDrive, &strUNC))
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{
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strUNC += (lp + 2);
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strName = strUNC;
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}
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lp = strName;
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}
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}
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catch(CMemoryException * e)
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{
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TRACEEOLID("!!!exception getting path");
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strName.Empty();
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e->ReportError();
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e->Delete();
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}
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return lp;
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}
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