433 lines
15 KiB
C++
433 lines
15 KiB
C++
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/*
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* CHNGSRC.CPP
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*
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* Implements the OleUIChangeSource function which invokes the complete
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* Change Source dialog.
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*
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* Copyright (c)1992 Microsoft Corporation, All Right Reserved
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*/
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#include "precomp.h"
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#include "common.h"
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#include "utility.h"
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OLEDBGDATA
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// Internally used structure
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typedef struct tagCHANGESOURCE
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{
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// Keep this item first as the Standard* functions depend on it here.
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LPOLEUICHANGESOURCE lpOCS; //Original structure passed.
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UINT nIDD; // IDD of dialog (used for help info)
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/*
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* What we store extra in this structure besides the original caller's
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* pointer are those fields that we need to modify during the life of
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* the dialog but that we don't want to change in the original structure
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* until the user presses OK.
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*/
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} CHANGESOURCE, *PCHANGESOURCE, FAR* LPCHANGESOURCE;
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// Internal function prototypes
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// CHNGSRC.CPP
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UINT_PTR CALLBACK ChangeSourceHookProc(HWND, UINT, WPARAM, LPARAM);
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BOOL FChangeSourceInit(HWND hDlg, WPARAM, LPARAM);
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STDAPI_(BOOL) IsValidInterface(void FAR* ppv);
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/*
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* OleUIChangeSource
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*
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* Purpose:
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* Invokes the standard OLE Change Source dialog box allowing the user
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* to change the source of a link. The link source is not actually
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* changed by this dialog. It is up to the caller to actually change
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* the link source itself.
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*
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* Parameters:
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* lpCS LPOLEUIChangeSource pointing to the in-out structure
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* for this dialog.
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*
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* Return Value:
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* UINT One of the following codes, indicating success or error:
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* OLEUI_SUCCESS Success
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* OLEUI_ERR_STRUCTSIZE The dwStructSize value is wrong
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*/
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STDAPI_(UINT) OleUIChangeSource(LPOLEUICHANGESOURCE lpCS)
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{
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HGLOBAL hMemDlg = NULL;
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UINT uRet = UStandardValidation((LPOLEUISTANDARD)lpCS,
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sizeof(OLEUICHANGESOURCE), &hMemDlg);
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if (OLEUI_SUCCESS != uRet)
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return uRet;
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HCURSOR hCurSave = NULL;
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// validate contents of lpCS
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if (lpCS->lpOleUILinkContainer == NULL)
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{
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uRet = OLEUI_CSERR_LINKCNTRNULL;
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goto Error;
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}
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if (!IsValidInterface(lpCS->lpOleUILinkContainer))
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{
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uRet = OLEUI_CSERR_LINKCNTRINVALID;
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goto Error;
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}
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// lpszFrom and lpszTo must be NULL (they are out only)
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if (lpCS->lpszFrom != NULL)
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{
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uRet = OLEUI_CSERR_FROMNOTNULL;
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goto Error;
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}
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if (lpCS->lpszTo != NULL)
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{
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uRet = OLEUI_CSERR_TONOTNULL;
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goto Error;
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}
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// lpszDisplayName must be valid or NULL
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if (lpCS->lpszDisplayName != NULL &&
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IsBadStringPtr(lpCS->lpszDisplayName, (UINT)-1))
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{
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uRet = OLEUI_CSERR_SOURCEINVALID;
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goto Error;
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}
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hCurSave = HourGlassOn();
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// attempt to retrieve link source if not provided
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if (lpCS->lpszDisplayName == NULL)
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{
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if (NOERROR != lpCS->lpOleUILinkContainer->GetLinkSource(
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lpCS->dwLink, &lpCS->lpszDisplayName, &lpCS->nFileLength,
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NULL, NULL, NULL, NULL))
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{
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uRet = OLEUI_CSERR_SOURCEINVALID;
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goto Error;
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}
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}
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// verify that nFileLength is valid
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if ((UINT)lstrlen(lpCS->lpszDisplayName) < lpCS->nFileLength)
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{
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uRet = OLEUI_CSERR_SOURCEINVALID;
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goto Error;
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}
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// allocate file buffer and split directory and file name
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UINT nFileLength; nFileLength = lpCS->nFileLength;
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UINT nFileBuf; nFileBuf = max(nFileLength+1, MAX_PATH);
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LPTSTR lpszFileBuf;
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LPTSTR lpszDirBuf; lpszDirBuf = (LPTSTR)OleStdMalloc(nFileBuf * sizeof(TCHAR));
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if (lpszDirBuf == NULL)
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{
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uRet = OLEUI_ERR_OLEMEMALLOC;
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goto Error;
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}
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lstrcpyn(lpszDirBuf, lpCS->lpszDisplayName, nFileLength+1);
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UINT nFileLen; nFileLen = GetFileName(lpszDirBuf, NULL, 0);
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lpszFileBuf = (LPTSTR)OleStdMalloc(nFileBuf * sizeof(TCHAR));
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if (lpszFileBuf == NULL)
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{
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uRet = OLEUI_ERR_OLEMEMALLOC;
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goto ErrorFreeDirBuf;
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}
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memmove(lpszFileBuf, lpszDirBuf+nFileLength-nFileLen+1,
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(nFileLen+1)*sizeof(TCHAR));
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lpszDirBuf[nFileLength-(nFileLen - 1)] = 0;
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// start filling the OPENFILENAME struct
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OPENFILENAME ofn; memset(&ofn, 0, sizeof(ofn));
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ofn.lpstrFile = lpszFileBuf;
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ofn.nMaxFile = nFileBuf;
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ofn.lpstrInitialDir = lpszDirBuf;
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// load filter strings
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TCHAR szFilters[MAX_PATH];
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if (!LoadString(_g_hOleStdResInst, IDS_FILTERS, szFilters, MAX_PATH))
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szFilters[0] = 0;
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else
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ReplaceCharWithNull(szFilters, szFilters[lstrlen(szFilters)-1]);
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ofn.lpstrFilter = szFilters;
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ofn.nFilterIndex = 1;
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TCHAR szTitle[MAX_PATH];
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// set the caption
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if (NULL!=lpCS->lpszCaption)
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ofn.lpstrTitle = lpCS->lpszCaption;
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else
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{
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LoadString(_g_hOleStdResInst, IDS_CHANGESOURCE, szTitle, MAX_PATH);
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ofn.lpstrTitle = szTitle;
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}
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// fill in rest of OPENFILENAME struct
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ofn.hwndOwner = lpCS->hWndOwner;
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ofn.lStructSize = sizeof(ofn);
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ofn.Flags = OFN_HIDEREADONLY | OFN_ENABLEHOOK;
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if (bWin4 && ((NULL == lpCS->hInstance && NULL == lpCS->hResource)
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|| 0 != (lpCS->dwFlags & CSF_EXPLORER)))
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ofn.Flags |= OFN_EXPLORER;
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if (lpCS->dwFlags & CSF_SHOWHELP)
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ofn.Flags |= OFN_SHOWHELP;
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ofn.lCustData = (LPARAM)lpCS;
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ofn.lpfnHook = ChangeSourceHookProc;
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ofn.lCustData = (LPARAM)lpCS;
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lpCS->lpOFN = &ofn; // needed sometimes in hook proc
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// allow hooking of the dialog resource
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if (lpCS->hResource != NULL)
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{
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ofn.hInstance = (HINSTANCE)lpCS->hResource;
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ofn.lpTemplateName = (LPCTSTR)lpCS->hResource;
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ofn.Flags |= OFN_ENABLETEMPLATEHANDLE;
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}
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else
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{
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if (lpCS->hInstance == NULL)
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{
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ofn.hInstance = _g_hOleStdResInst;
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ofn.lpTemplateName = bWin4 ?
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MAKEINTRESOURCE(IDD_CHANGESOURCE4) : MAKEINTRESOURCE(IDD_CHANGESOURCE);
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ofn.Flags |= OFN_ENABLETEMPLATE;
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}
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else
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{
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ofn.hInstance = lpCS->hInstance;
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ofn.lpTemplateName = lpCS->lpszTemplate;
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ofn.Flags |= OFN_ENABLETEMPLATE;
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}
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}
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if (lpCS->hWndOwner != NULL)
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{
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// allow hooking of the OFN struct
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SendMessage(lpCS->hWndOwner, uMsgBrowseOFN, ID_BROWSE_CHANGESOURCE, (LPARAM)&ofn);
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}
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// call up the dialog
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BOOL bResult;
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bResult = StandardGetOpenFileName(&ofn);
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// cleanup
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OleStdFree(lpszDirBuf);
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OleStdFree(lpszFileBuf);
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HourGlassOff(hCurSave);
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// map return value to OLEUI_ standard returns
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return bResult ? OLEUI_OK : OLEUI_CANCEL;
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// handle most error returns here
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ErrorFreeDirBuf:
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OleStdFree(lpszDirBuf);
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Error:
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if (hCurSave != NULL)
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HourGlassOff(hCurSave);
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return uRet;
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}
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/*
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* ChangeSourceHookProc
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*
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* Purpose:
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* Implements the OLE Change Source dialog as invoked through the
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* OleUIChangeSource function. This is a standard COMMDLG hook function
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* as opposed to a dialog proc.
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*
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* Parameters:
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* Standard
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*
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* Return Value:
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* Standard
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*/
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UINT_PTR CALLBACK ChangeSourceHookProc(HWND hDlg, UINT iMsg, WPARAM wParam, LPARAM lParam)
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{
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// Declare Win16/Win32 compatible WM_COMMAND parameters.
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COMMANDPARAMS(wID, wCode, hWndMsg);
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// This will fail under WM_INITDIALOG, where we allocate it.
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UINT uHook = 0;
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LPCHANGESOURCE lpCS = (LPCHANGESOURCE)LpvStandardEntry(hDlg, iMsg, wParam, lParam, &uHook);
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LPOLEUICHANGESOURCE lpOCS = NULL;
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if (lpCS != NULL)
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lpOCS = lpCS->lpOCS;
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// If the hook processed the message, we're done.
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if (0 != uHook)
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return uHook;
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// Process help message
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if ((iMsg == uMsgHelp) && NULL != lpOCS)
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{
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PostMessage(lpOCS->hWndOwner, uMsgHelp,
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(WPARAM)hDlg, MAKELPARAM(IDD_CHANGESOURCE, 0));
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}
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// Process the temination message
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if (iMsg == uMsgEndDialog)
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{
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// Free any specific allocations before calling StandardCleanup
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StandardCleanup((PVOID)lpCS, hDlg);
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EndDialog(hDlg, wParam);
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return TRUE;
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}
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// handle validation of the file name (when user hits OK)
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if ((iMsg == uMsgFileOKString) && (lpOCS != NULL))
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{
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// always use fully qualified name
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LPOPENFILENAME lpOFN = lpOCS->lpOFN;
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LPCTSTR lpsz = lpOFN->lpstrFile;
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LPTSTR lpszFile;
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TCHAR szPath[MAX_PATH];
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if (!GetFullPathName(lpsz, MAX_PATH, szPath, &lpszFile))
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lstrcpyn(szPath, lpsz, MAX_PATH);
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UINT nLenFile = lstrlen(szPath);
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TCHAR szItemName[MAX_PATH];
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GetDlgItemText(hDlg, edt2, szItemName, MAX_PATH);
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// combine them into szDisplayName (which is now large enough)
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TCHAR szDisplayName[MAX_PATH+MAX_PATH];
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lstrcpy(szDisplayName, szPath);
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if (szItemName[0] != '\0')
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{
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lstrcat(szDisplayName, TEXT("\\"));
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lstrcat(szDisplayName, szItemName);
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}
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if (!(lpOCS->dwFlags & CSF_ONLYGETSOURCE))
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{
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// verify the source by calling into the link container
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LPOLEUILINKCONTAINER lpOleUILinkCntr = lpOCS->lpOleUILinkContainer;
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ULONG chEaten;
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if (lpOleUILinkCntr->SetLinkSource(lpOCS->dwLink, szDisplayName, nLenFile,
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&chEaten, TRUE) != NOERROR)
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{
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// link not verified ok
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lpOCS->dwFlags &= ~CSF_VALIDSOURCE;
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UINT uRet = PopupMessage(hDlg, IDS_CHANGESOURCE, IDS_INVALIDSOURCE,
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MB_ICONQUESTION | MB_YESNO);
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if (uRet == IDYES)
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{
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SetWindowLong(hDlg, DWLP_MSGRESULT, 1);
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return 1; // do not close dialog
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}
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// user doesn't care if the link is valid or not
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lpOleUILinkCntr->SetLinkSource(lpOCS->dwLink, szDisplayName, nLenFile,
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&chEaten, FALSE);
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}
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else
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{
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// link was verified ok
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lpOCS->dwFlags |= CSF_VALIDSOURCE;
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}
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}
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// calculate lpszFrom and lpszTo for batch changes to links
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DiffPrefix(lpOCS->lpszDisplayName, szDisplayName, &lpOCS->lpszFrom, &lpOCS->lpszTo);
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// only keep them if the file name portion is the only part that changed
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if (lstrcmpi(lpOCS->lpszTo, lpOCS->lpszFrom) == 0 ||
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(UINT)lstrlen(lpOCS->lpszFrom) > lpOCS->nFileLength)
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{
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OleStdFree(lpOCS->lpszFrom);
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lpOCS->lpszFrom = NULL;
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OleStdFree(lpOCS->lpszTo);
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lpOCS->lpszTo = NULL;
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}
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// store new source in lpOCS->lpszDisplayName
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OleStdFree(lpOCS->lpszDisplayName);
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lpOCS->lpszDisplayName = OleStdCopyString(szDisplayName);
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lpOCS->nFileLength = nLenFile;
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return 0;
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}
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switch (iMsg)
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{
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case WM_NOTIFY:
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if (((NMHDR*)lParam)->code == CDN_HELP)
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{
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goto POSTHELP;
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}
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break;
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||
|
|
case WM_COMMAND:
|
||
|
|
if (wID == pshHelp)
|
||
|
|
{
|
||
|
|
POSTHELP:
|
||
|
|
PostMessage(lpCS->lpOCS->hWndOwner, uMsgHelp,
|
||
|
|
(WPARAM)hDlg, MAKELPARAM(IDD_CHANGESOURCE, 0));
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case WM_INITDIALOG:
|
||
|
|
return FChangeSourceInit(hDlg, wParam, lParam);
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* FChangeSourceInit
|
||
|
|
*
|
||
|
|
* Purpose:
|
||
|
|
* WM_INITIDIALOG handler for the Change Source dialog box.
|
||
|
|
*
|
||
|
|
* Parameters:
|
||
|
|
* hDlg HWND of the dialog
|
||
|
|
* wParam WPARAM of the message
|
||
|
|
* lParam LPARAM of the message
|
||
|
|
*
|
||
|
|
* Return Value:
|
||
|
|
* BOOL Value to return for WM_INITDIALOG.
|
||
|
|
*/
|
||
|
|
BOOL FChangeSourceInit(HWND hDlg, WPARAM wParam, LPARAM lParam)
|
||
|
|
{
|
||
|
|
// Copy the structure at lParam into our instance memory.
|
||
|
|
LPCHANGESOURCE lpCS = (LPCHANGESOURCE)LpvStandardInit(hDlg, sizeof(CHANGESOURCE), NULL);
|
||
|
|
|
||
|
|
// PvStandardInit send a termination to us already.
|
||
|
|
if (NULL == lpCS)
|
||
|
|
return FALSE;
|
||
|
|
|
||
|
|
LPOLEUICHANGESOURCE lpOCS=
|
||
|
|
(LPOLEUICHANGESOURCE)((LPOPENFILENAME)lParam)->lCustData;
|
||
|
|
lpCS->lpOCS = lpOCS;
|
||
|
|
lpCS->nIDD = IDD_CHANGESOURCE;
|
||
|
|
|
||
|
|
// Setup Item text box with item part of lpszDisplayName
|
||
|
|
LPTSTR lpszItemName = lpOCS->lpszDisplayName + lpOCS->nFileLength;
|
||
|
|
if (*lpszItemName != '\0')
|
||
|
|
SetDlgItemText(hDlg, edt2, lpszItemName+1);
|
||
|
|
SendDlgItemMessage(hDlg, edt2, EM_LIMITTEXT, MAX_PATH, 0L);
|
||
|
|
|
||
|
|
// Change the caption
|
||
|
|
if (NULL!=lpOCS->lpszCaption)
|
||
|
|
SetWindowText(hDlg, lpOCS->lpszCaption);
|
||
|
|
|
||
|
|
// Call the hook with lCustData in lParam
|
||
|
|
UStandardHook((PVOID)lpCS, hDlg, WM_INITDIALOG, wParam, lpOCS->lCustData);
|
||
|
|
#ifdef CHICO
|
||
|
|
TCHAR szTemp[MAX_PATH];
|
||
|
|
LoadString(_g_hOleStdResInst, IDS_CHNGSRCOKBUTTON , szTemp, MAX_PATH);
|
||
|
|
CommDlg_OpenSave_SetControlText(GetParent(hDlg), IDOK, szTemp);
|
||
|
|
#endif
|
||
|
|
return TRUE;
|
||
|
|
}
|
||
|
|
|
||
|
|
/////////////////////////////////////////////////////////////////////////////
|