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wine/dlls/comdlg32/finddlg.c
Nikolay Sivov 38898e939c comdlg32: Use memory allocation helpers. 
Signed-off-by: Nikolay Sivov <nsivov@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
2018-03-20 11:40:15 +01:00

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/*
* Common Dialog Boxes interface (32 bit)
* Find/Replace
*
* Copyright 1998,1999 Bertho A. Stultiens
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#include <string.h>
#include "windef.h"
#include "winbase.h"
#include "winnls.h"
#include "wingdi.h"
#include "winuser.h"
#include "commdlg.h"
#include "cderr.h"
#include "dlgs.h"
#include "wine/debug.h"
#include "wine/heap.h"
WINE_DEFAULT_DEBUG_CHANNEL(commdlg);
#include "cdlg.h"
/*-----------------------------------------------------------------------*/
static UINT FindReplaceMessage;
static UINT HelpMessage;
#define FR_MASK (FR_DOWN | FR_MATCHCASE | FR_WHOLEWORD | FR_REPLACEALL | FR_REPLACE | FR_FINDNEXT | FR_DIALOGTERM)
/* CRITICAL_SECTION COMDLG32_CritSect; */
/* Notes:
* MS uses a critical section at a few locations. However, I fail to
* see the reason for this. Their comdlg32.dll has a few race conditions
* but _not_ at those places that are protected with the mutex (there are
* globals that seem to hold info for the wndproc).
*
* FindText[AW]/ReplaceText[AW]
* The find/replace calls are passed a structure that is _not_ used
* internally. There is a local copy that holds the running info to
* be able to combine xxxA and xxxW calls. The passed pointer is
* returned upon sendmessage. Apps won't break this way when they rely
* on the original pointer. This will work as long as the sizes of
* FINDREPLACEA == FINDREPLACEW. The local copy will also prevent
* the app to see the wine-specific extra flags to distinguish between
* A/W and Find/Replace.
*/
/***********************************************************************
* COMDLG32_FR_GetFlags [internal]
* Returns the button state that needs to be reported to the caller.
* RETURNS
* Current state of check and radio buttons
*/
static DWORD COMDLG32_FR_GetFlags(HWND hDlgWnd)
{
DWORD flags = 0;
if(IsDlgButtonChecked(hDlgWnd, rad2) == BST_CHECKED)
flags |= FR_DOWN;
if(IsDlgButtonChecked(hDlgWnd, chx1) == BST_CHECKED)
flags |= FR_WHOLEWORD;
if(IsDlgButtonChecked(hDlgWnd, chx2) == BST_CHECKED)
flags |= FR_MATCHCASE;
return flags;
}
/***********************************************************************
* COMDLG32_FR_HandleWMCommand [internal]
* Handle WM_COMMAND messages...
*/
static void COMDLG32_FR_HandleWMCommand(HWND hDlgWnd, COMDLG32_FR_Data *pData, int Id, int NotifyCode)
{
DWORD flag;
pData->user_fr.fra->Flags &= ~FR_MASK; /* Clear return flags */
if(pData->fr.Flags & FR_WINE_REPLACE) /* Replace always goes down... */
pData->user_fr.fra->Flags |= FR_DOWN;
if(NotifyCode == BN_CLICKED)
{
switch(Id)
{
case IDOK: /* Find Next */
if(GetDlgItemTextA(hDlgWnd, edt1, pData->fr.lpstrFindWhat, pData->fr.wFindWhatLen) > 0)
{
pData->user_fr.fra->Flags |= COMDLG32_FR_GetFlags(hDlgWnd) | FR_FINDNEXT;
if(pData->fr.Flags & FR_WINE_UNICODE)
{
MultiByteToWideChar( CP_ACP, 0, pData->fr.lpstrFindWhat, -1,
pData->user_fr.frw->lpstrFindWhat,
0x7fffffff );
}
else
{
strcpy(pData->user_fr.fra->lpstrFindWhat, pData->fr.lpstrFindWhat);
}
SendMessageA(pData->fr.hwndOwner, FindReplaceMessage, 0, (LPARAM)pData->user_fr.fra);
}
break;
case IDCANCEL:
pData->user_fr.fra->Flags |= COMDLG32_FR_GetFlags(hDlgWnd) | FR_DIALOGTERM;
SendMessageA(pData->fr.hwndOwner, FindReplaceMessage, 0, (LPARAM)pData->user_fr.fra);
DestroyWindow(hDlgWnd);
break;
case psh2: /* Replace All */
flag = FR_REPLACEALL;
goto Replace;
case psh1: /* Replace */
flag = FR_REPLACE;
Replace:
if((pData->fr.Flags & FR_WINE_REPLACE)
&& GetDlgItemTextA(hDlgWnd, edt1, pData->fr.lpstrFindWhat, pData->fr.wFindWhatLen) > 0)
{
pData->fr.lpstrReplaceWith[0] = 0; /* In case the next GetDlgItemText Fails */
GetDlgItemTextA(hDlgWnd, edt2, pData->fr.lpstrReplaceWith, pData->fr.wReplaceWithLen);
pData->user_fr.fra->Flags |= COMDLG32_FR_GetFlags(hDlgWnd) | flag;
if(pData->fr.Flags & FR_WINE_UNICODE)
{
MultiByteToWideChar( CP_ACP, 0, pData->fr.lpstrFindWhat, -1,
pData->user_fr.frw->lpstrFindWhat,
0x7fffffff );
MultiByteToWideChar( CP_ACP, 0, pData->fr.lpstrReplaceWith, -1,
pData->user_fr.frw->lpstrReplaceWith,
0x7fffffff );
}
else
{
strcpy(pData->user_fr.fra->lpstrFindWhat, pData->fr.lpstrFindWhat);
strcpy(pData->user_fr.fra->lpstrReplaceWith, pData->fr.lpstrReplaceWith);
}
SendMessageA(pData->fr.hwndOwner, FindReplaceMessage, 0, (LPARAM)pData->user_fr.fra);
}
break;
case pshHelp:
pData->user_fr.fra->Flags |= COMDLG32_FR_GetFlags(hDlgWnd);
SendMessageA(pData->fr.hwndOwner, HelpMessage, (WPARAM)hDlgWnd, (LPARAM)pData->user_fr.fra);
break;
}
}
else if(NotifyCode == EN_CHANGE && Id == edt1)
{
BOOL enable = SendDlgItemMessageA(hDlgWnd, edt1, WM_GETTEXTLENGTH, 0, 0) > 0;
EnableWindow(GetDlgItem(hDlgWnd, IDOK), enable);
if(pData->fr.Flags & FR_WINE_REPLACE)
{
EnableWindow(GetDlgItem(hDlgWnd, psh1), enable);
EnableWindow(GetDlgItem(hDlgWnd, psh2), enable);
}
}
}
/***********************************************************************
* COMDLG32_FindReplaceDlgProc [internal]
* [Find/Replace]Text32[A/W] window procedure.
*/
static INT_PTR CALLBACK COMDLG32_FindReplaceDlgProc(HWND hDlgWnd, UINT iMsg, WPARAM wParam, LPARAM lParam)
{
COMDLG32_FR_Data *pdata = GetPropA(hDlgWnd, (LPSTR)COMDLG32_Atom);
INT_PTR retval = TRUE;
if(iMsg == WM_INITDIALOG)
{
pdata = (COMDLG32_FR_Data *)lParam;
if(!SetPropA(hDlgWnd, (LPSTR)COMDLG32_Atom, (HANDLE)pdata))
{
ERR("Could not Set prop; invent a graceful exit?...\n");
DestroyWindow(hDlgWnd);
return FALSE;
}
SendDlgItemMessageA(hDlgWnd, edt1, EM_SETLIMITTEXT, pdata->fr.wFindWhatLen, 0);
SendDlgItemMessageA(hDlgWnd, edt1, WM_SETTEXT, 0, (LPARAM)pdata->fr.lpstrFindWhat);
if(pdata->fr.Flags & FR_WINE_REPLACE)
{
SendDlgItemMessageA(hDlgWnd, edt2, EM_SETLIMITTEXT, pdata->fr.wReplaceWithLen, 0);
SendDlgItemMessageA(hDlgWnd, edt2, WM_SETTEXT, 0, (LPARAM)pdata->fr.lpstrReplaceWith);
}
if(!(pdata->fr.Flags & FR_SHOWHELP))
ShowWindow(GetDlgItem(hDlgWnd, pshHelp), SW_HIDE);
if(pdata->fr.Flags & FR_HIDEUPDOWN)
{
ShowWindow(GetDlgItem(hDlgWnd, rad1), SW_HIDE);
ShowWindow(GetDlgItem(hDlgWnd, rad2), SW_HIDE);
ShowWindow(GetDlgItem(hDlgWnd, grp1), SW_HIDE);
}
else if(pdata->fr.Flags & FR_NOUPDOWN)
{
EnableWindow(GetDlgItem(hDlgWnd, rad1), FALSE);
EnableWindow(GetDlgItem(hDlgWnd, rad2), FALSE);
EnableWindow(GetDlgItem(hDlgWnd, grp1), FALSE);
}
else
{
SendDlgItemMessageA(hDlgWnd, rad1, BM_SETCHECK, pdata->fr.Flags & FR_DOWN ? 0 : BST_CHECKED, 0);
SendDlgItemMessageA(hDlgWnd, rad2, BM_SETCHECK, pdata->fr.Flags & FR_DOWN ? BST_CHECKED : 0, 0);
}
if(pdata->fr.Flags & FR_HIDEMATCHCASE)
ShowWindow(GetDlgItem(hDlgWnd, chx2), SW_HIDE);
else if(pdata->fr.Flags & FR_NOMATCHCASE)
EnableWindow(GetDlgItem(hDlgWnd, chx2), FALSE);
else
SendDlgItemMessageA(hDlgWnd, chx2, BM_SETCHECK, pdata->fr.Flags & FR_MATCHCASE ? BST_CHECKED : 0, 0);
if(pdata->fr.Flags & FR_HIDEWHOLEWORD)
ShowWindow(GetDlgItem(hDlgWnd, chx1), SW_HIDE);
else if(pdata->fr.Flags & FR_NOWHOLEWORD)
EnableWindow(GetDlgItem(hDlgWnd, chx1), FALSE);
else
SendDlgItemMessageA(hDlgWnd, chx1, BM_SETCHECK, pdata->fr.Flags & FR_WHOLEWORD ? BST_CHECKED : 0, 0);
/* We did the init here, now call the hook if requested */
/* We do not do ShowWindow if hook exists and is FALSE */
/* per MSDN Article Q96135 */
if((pdata->fr.Flags & FR_ENABLEHOOK)
&& ! pdata->fr.lpfnHook(hDlgWnd, iMsg, wParam, (LPARAM) &pdata->fr))
return TRUE;
ShowWindow(hDlgWnd, SW_SHOWNORMAL);
UpdateWindow(hDlgWnd);
return TRUE;
}
if(pdata && (pdata->fr.Flags & FR_ENABLEHOOK))
{
retval = pdata->fr.lpfnHook(hDlgWnd, iMsg, wParam, lParam);
}
else
retval = FALSE;
if(pdata && !retval)
{
retval = TRUE;
switch(iMsg)
{
case WM_COMMAND:
COMDLG32_FR_HandleWMCommand(hDlgWnd, pdata, LOWORD(wParam), HIWORD(wParam));
break;
case WM_CLOSE:
COMDLG32_FR_HandleWMCommand(hDlgWnd, pdata, IDCANCEL, BN_CLICKED);
break;
case WM_HELP:
/* Heeeeelp! */
FIXME("Got WM_HELP. Who is gonna supply it?\n");
break;
case WM_CONTEXTMENU:
/* Heeeeelp! */
FIXME("Got WM_CONTEXTMENU. Who is gonna supply it?\n");
break;
/* FIXME: Handle F1 help */
default:
retval = FALSE; /* We did not handle the message */
}
}
/* WM_DESTROY is a special case.
* We need to ensure that the allocated memory is freed just before
* the dialog is killed. We also need to remove the added prop.
*/
if(iMsg == WM_DESTROY)
{
RemovePropA(hDlgWnd, (LPSTR)COMDLG32_Atom);
heap_free(pdata);
}
return retval;
}
/***********************************************************************
* COMDLG32_FR_CheckPartial [internal]
* Check various fault conditions in the supplied parameters that
* cause an extended error to be reported.
* RETURNS
* TRUE: Success
* FALSE: Failure
*/
static BOOL COMDLG32_FR_CheckPartial(
const FINDREPLACEA *pfr, /* [in] Find structure */
BOOL Replace /* [in] True if called as replace */
) {
if(!pfr)
{
COMDLG32_SetCommDlgExtendedError(CDERR_INITIALIZATION);
return FALSE;
}
if(pfr->lStructSize != sizeof(FINDREPLACEA))
{
COMDLG32_SetCommDlgExtendedError(CDERR_STRUCTSIZE);
return FALSE;
}
if(!IsWindow(pfr->hwndOwner))
{
COMDLG32_SetCommDlgExtendedError(CDERR_DIALOGFAILURE);
return FALSE;
}
if((pfr->wFindWhatLen < 1 || !pfr->lpstrFindWhat)
||(Replace && !pfr->lpstrReplaceWith))
{
COMDLG32_SetCommDlgExtendedError(FRERR_BUFFERLENGTHZERO);
return FALSE;
}
if((FindReplaceMessage = RegisterWindowMessageA(FINDMSGSTRINGA)) == 0)
{
COMDLG32_SetCommDlgExtendedError(CDERR_REGISTERMSGFAIL);
return FALSE;
}
if((HelpMessage = RegisterWindowMessageA(HELPMSGSTRINGA)) == 0)
{
COMDLG32_SetCommDlgExtendedError(CDERR_REGISTERMSGFAIL);
return FALSE;
}
if((pfr->Flags & FR_ENABLEHOOK) && !pfr->lpfnHook)
{
COMDLG32_SetCommDlgExtendedError(CDERR_NOHOOK);
return FALSE;
}
if((pfr->Flags & FR_ENABLETEMPLATEHANDLE) && !pfr->hInstance)
{
COMDLG32_SetCommDlgExtendedError(CDERR_NOHINSTANCE);
return FALSE;
}
return TRUE;
}
/***********************************************************************
* COMDLG32_FR_DoFindReplace [internal]
* Actual load and creation of the Find/Replace dialog.
* RETURNS
* Window handle to created dialog:Success
* NULL:Failure
*/
static HWND COMDLG32_FR_DoFindReplace(
COMDLG32_FR_Data *pdata /* [in] Internal data structure */
) {
HWND hdlgwnd = 0;
HGLOBAL loadrc;
DWORD error;
LPDLGTEMPLATEW rcs;
TRACE("hInst=%p, Flags=%08x\n", pdata->fr.hInstance, pdata->fr.Flags);
if(!(pdata->fr.Flags & FR_ENABLETEMPLATEHANDLE))
{
HMODULE hmod = COMDLG32_hInstance;
HRSRC htemplate;
if(pdata->fr.Flags & FR_ENABLETEMPLATE)
{
hmod = pdata->fr.hInstance;
if(pdata->fr.Flags & FR_WINE_UNICODE)
{
htemplate = FindResourceW(hmod, (LPCWSTR)pdata->fr.lpTemplateName, (LPWSTR)RT_DIALOG);
}
else
{
htemplate = FindResourceA(hmod, pdata->fr.lpTemplateName, (LPCSTR)RT_DIALOG);
}
}
else
{
int rcid = pdata->fr.Flags & FR_WINE_REPLACE ? REPLACEDLGORD
: FINDDLGORD;
htemplate = FindResourceA(hmod, MAKEINTRESOURCEA(rcid), (LPCSTR)RT_DIALOG);
}
if(!htemplate)
{
error = CDERR_FINDRESFAILURE;
goto cleanup;
}
loadrc = LoadResource(hmod, htemplate);
}
else
{
loadrc = pdata->fr.hInstance;
}
if(!loadrc)
{
error = CDERR_LOADRESFAILURE;
goto cleanup;
}
if((rcs = LockResource(loadrc)) == NULL)
{
error = CDERR_LOCKRESFAILURE;
goto cleanup;
}
hdlgwnd = CreateDialogIndirectParamA(COMDLG32_hInstance,
rcs,
pdata->fr.hwndOwner,
COMDLG32_FindReplaceDlgProc,
(LPARAM)pdata);
if(!hdlgwnd)
{
error = CDERR_DIALOGFAILURE;
cleanup:
COMDLG32_SetCommDlgExtendedError(error);
heap_free(pdata);
}
return hdlgwnd;
}
/***********************************************************************
* FindTextA [COMDLG32.@]
*
* See FindTextW.
*/
HWND WINAPI FindTextA(
LPFINDREPLACEA pfr /* [in] Find/replace structure*/
) {
COMDLG32_FR_Data *pdata;
TRACE("LPFINDREPLACE=%p\n", pfr);
if(!COMDLG32_FR_CheckPartial(pfr, FALSE))
return 0;
if((pdata = COMDLG32_AllocMem(sizeof(COMDLG32_FR_Data))) == NULL)
return 0; /* Error has been set */
pdata->user_fr.fra = pfr;
pdata->fr = *pfr;
return COMDLG32_FR_DoFindReplace(pdata);
}
/***********************************************************************
* ReplaceTextA [COMDLG32.@]
*
* See ReplaceTextW.
*/
HWND WINAPI ReplaceTextA(
LPFINDREPLACEA pfr /* [in] Find/replace structure*/
) {
COMDLG32_FR_Data *pdata;
TRACE("LPFINDREPLACE=%p\n", pfr);
if(!COMDLG32_FR_CheckPartial(pfr, TRUE))
return 0;
if((pdata = COMDLG32_AllocMem(sizeof(COMDLG32_FR_Data))) == NULL)
return 0; /* Error has been set */
pdata->user_fr.fra = pfr;
pdata->fr = *pfr;
pdata->fr.Flags |= FR_WINE_REPLACE;
return COMDLG32_FR_DoFindReplace(pdata);
}
/***********************************************************************
* FindTextW [COMDLG32.@]
*
* Create a modeless find-text dialog box.
*
* RETURNS
* Window handle to created dialog: Success
* NULL: Failure
*/
HWND WINAPI FindTextW(
LPFINDREPLACEW pfr /* [in] Find/replace structure*/
) {
COMDLG32_FR_Data *pdata;
DWORD len;
TRACE("LPFINDREPLACE=%p\n", pfr);
if(!COMDLG32_FR_CheckPartial((LPFINDREPLACEA)pfr, FALSE))
return 0;
len = WideCharToMultiByte( CP_ACP, 0, pfr->lpstrFindWhat, pfr->wFindWhatLen,
NULL, 0, NULL, NULL );
if((pdata = COMDLG32_AllocMem(sizeof(COMDLG32_FR_Data) + len)) == NULL)
return 0; /* Error has been set */
pdata->user_fr.frw = pfr;
pdata->fr = *(LPFINDREPLACEA)pfr; /* FINDREPLACEx have same size */
pdata->fr.Flags |= FR_WINE_UNICODE;
pdata->fr.lpstrFindWhat = (LPSTR)(pdata + 1); /* Set string pointer */
WideCharToMultiByte( CP_ACP, 0, pfr->lpstrFindWhat, pfr->wFindWhatLen,
pdata->fr.lpstrFindWhat, len, NULL, NULL );
return COMDLG32_FR_DoFindReplace(pdata);
}
/***********************************************************************
* ReplaceTextW [COMDLG32.@]
*
* Create a modeless replace-text dialog box.
*
* RETURNS
* Window handle to created dialog: Success
* NULL: Failure
*/
HWND WINAPI ReplaceTextW(
LPFINDREPLACEW pfr /* [in] Find/replace structure*/
) {
COMDLG32_FR_Data *pdata;
DWORD len1, len2;
TRACE("LPFINDREPLACE=%p\n", pfr);
if(!COMDLG32_FR_CheckPartial((LPFINDREPLACEA)pfr, TRUE))
return 0;
len1 = WideCharToMultiByte( CP_ACP, 0, pfr->lpstrFindWhat, pfr->wFindWhatLen,
NULL, 0, NULL, NULL );
len2 = WideCharToMultiByte( CP_ACP, 0, pfr->lpstrReplaceWith, pfr->wReplaceWithLen,
NULL, 0, NULL, NULL );
if((pdata = COMDLG32_AllocMem(sizeof(COMDLG32_FR_Data) + len1 + len2)) == NULL)
return 0; /* Error has been set */
pdata->user_fr.frw = pfr;
pdata->fr = *(LPFINDREPLACEA)pfr; /* FINDREPLACEx have same size */
pdata->fr.Flags |= FR_WINE_REPLACE | FR_WINE_UNICODE;
pdata->fr.lpstrFindWhat = (LPSTR)(pdata + 1); /* Set string pointer */
pdata->fr.lpstrReplaceWith = pdata->fr.lpstrFindWhat + len1;
WideCharToMultiByte( CP_ACP, 0, pfr->lpstrFindWhat, pfr->wFindWhatLen,
pdata->fr.lpstrFindWhat, len1, NULL, NULL );
WideCharToMultiByte( CP_ACP, 0, pfr->lpstrReplaceWith, pfr->wReplaceWithLen,
pdata->fr.lpstrReplaceWith, len2, NULL, NULL );
return COMDLG32_FR_DoFindReplace(pdata);
}
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