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wine/dlls/user32/msgbox.c
Alex Henrie 5b53c0b88b user32: Avoid double initialization. 
Signed-off-by: Alex Henrie <alexhenrie24@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
2015-11-06 21:59:08 +09:00

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/*
* Message boxes
*
* Copyright 1995 Bernd Schmidt
* Copyright 2004 Ivan Leo Puoti, Juan Lang
*
* 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 "wingdi.h"
#include "winternl.h"
#include "dlgs.h"
#include "user_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(dialog);
WINE_DECLARE_DEBUG_CHANNEL(msgbox);
#define MSGBOX_IDICON stc1
#define MSGBOX_IDTEXT 100
#define IDS_ERROR 2
struct ThreadWindows
{
UINT numHandles;
UINT numAllocs;
HWND *handles;
};
static BOOL CALLBACK MSGBOX_EnumProc(HWND hwnd, LPARAM lParam)
{
struct ThreadWindows *threadWindows = (struct ThreadWindows *)lParam;
if (!EnableWindow(hwnd, FALSE))
{
if(threadWindows->numHandles >= threadWindows->numAllocs)
{
threadWindows->handles = HeapReAlloc(GetProcessHeap(), 0, threadWindows->handles,
(threadWindows->numAllocs*2)*sizeof(HWND));
threadWindows->numAllocs *= 2;
}
threadWindows->handles[threadWindows->numHandles++]=hwnd;
}
return TRUE;
}
static void MSGBOX_OnInit(HWND hwnd, LPMSGBOXPARAMSW lpmb)
{
HFONT hPrevFont;
RECT rect;
HWND hItem;
HDC hdc;
int i, buttons;
int bspace, bw, bh, theight, tleft, wwidth, wheight, wleft, wtop, bpos;
int borheight, borwidth, iheight, ileft, iwidth, twidth, tiheight;
NONCLIENTMETRICSW nclm;
HMONITOR monitor;
MONITORINFO mon_info;
LPCWSTR lpszText;
WCHAR *buffer = NULL;
const WCHAR *ptr;
/* Index the order the buttons need to appear to an ID* constant */
static const int buttonOrder[10] = { IDYES, IDNO, IDOK, IDABORT, IDRETRY,
IDCANCEL, IDIGNORE, IDTRYAGAIN,
IDCONTINUE, IDHELP };
nclm.cbSize = sizeof(nclm);
SystemParametersInfoW (SPI_GETNONCLIENTMETRICS, 0, &nclm, 0);
if (!IS_INTRESOURCE(lpmb->lpszCaption)) {
SetWindowTextW(hwnd, lpmb->lpszCaption);
} else {
UINT len = LoadStringW( lpmb->hInstance, LOWORD(lpmb->lpszCaption), (LPWSTR)&ptr, 0 );
if (!len) len = LoadStringW( user32_module, IDS_ERROR, (LPWSTR)&ptr, 0 );
buffer = HeapAlloc( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) );
if (buffer)
{
memcpy( buffer, ptr, len * sizeof(WCHAR) );
buffer[len] = 0;
SetWindowTextW( hwnd, buffer );
HeapFree( GetProcessHeap(), 0, buffer );
buffer = NULL;
}
}
if (IS_INTRESOURCE(lpmb->lpszText)) {
UINT len = LoadStringW( lpmb->hInstance, LOWORD(lpmb->lpszText), (LPWSTR)&ptr, 0 );
lpszText = buffer = HeapAlloc( GetProcessHeap(), 0, (len + 1) * sizeof(WCHAR) );
if (buffer)
{
memcpy( buffer, ptr, len * sizeof(WCHAR) );
buffer[len] = 0;
}
} else {
lpszText = lpmb->lpszText;
}
TRACE_(msgbox)("%s\n", debugstr_w(lpszText));
SetWindowTextW(GetDlgItem(hwnd, MSGBOX_IDTEXT), lpszText);
/* Remove not selected buttons and assign the WS_GROUP style to the first button */
hItem = 0;
switch(lpmb->dwStyle & MB_TYPEMASK) {
case MB_OK:
DestroyWindow(GetDlgItem(hwnd, IDCANCEL));
/* fall through */
case MB_OKCANCEL:
hItem = GetDlgItem(hwnd, IDOK);
DestroyWindow(GetDlgItem(hwnd, IDABORT));
DestroyWindow(GetDlgItem(hwnd, IDRETRY));
DestroyWindow(GetDlgItem(hwnd, IDIGNORE));
DestroyWindow(GetDlgItem(hwnd, IDYES));
DestroyWindow(GetDlgItem(hwnd, IDNO));
DestroyWindow(GetDlgItem(hwnd, IDTRYAGAIN));
DestroyWindow(GetDlgItem(hwnd, IDCONTINUE));
break;
case MB_ABORTRETRYIGNORE:
hItem = GetDlgItem(hwnd, IDABORT);
DestroyWindow(GetDlgItem(hwnd, IDOK));
DestroyWindow(GetDlgItem(hwnd, IDCANCEL));
DestroyWindow(GetDlgItem(hwnd, IDYES));
DestroyWindow(GetDlgItem(hwnd, IDNO));
DestroyWindow(GetDlgItem(hwnd, IDCONTINUE));
DestroyWindow(GetDlgItem(hwnd, IDTRYAGAIN));
break;
case MB_YESNO:
DestroyWindow(GetDlgItem(hwnd, IDCANCEL));
/* fall through */
case MB_YESNOCANCEL:
hItem = GetDlgItem(hwnd, IDYES);
DestroyWindow(GetDlgItem(hwnd, IDOK));
DestroyWindow(GetDlgItem(hwnd, IDABORT));
DestroyWindow(GetDlgItem(hwnd, IDRETRY));
DestroyWindow(GetDlgItem(hwnd, IDIGNORE));
DestroyWindow(GetDlgItem(hwnd, IDCONTINUE));
DestroyWindow(GetDlgItem(hwnd, IDTRYAGAIN));
break;
case MB_RETRYCANCEL:
hItem = GetDlgItem(hwnd, IDRETRY);
DestroyWindow(GetDlgItem(hwnd, IDOK));
DestroyWindow(GetDlgItem(hwnd, IDABORT));
DestroyWindow(GetDlgItem(hwnd, IDIGNORE));
DestroyWindow(GetDlgItem(hwnd, IDYES));
DestroyWindow(GetDlgItem(hwnd, IDNO));
DestroyWindow(GetDlgItem(hwnd, IDCONTINUE));
DestroyWindow(GetDlgItem(hwnd, IDTRYAGAIN));
break;
case MB_CANCELTRYCONTINUE:
hItem = GetDlgItem(hwnd, IDCANCEL);
DestroyWindow(GetDlgItem(hwnd, IDOK));
DestroyWindow(GetDlgItem(hwnd, IDABORT));
DestroyWindow(GetDlgItem(hwnd, IDIGNORE));
DestroyWindow(GetDlgItem(hwnd, IDYES));
DestroyWindow(GetDlgItem(hwnd, IDNO));
DestroyWindow(GetDlgItem(hwnd, IDRETRY));
}
if (hItem) SetWindowLongW(hItem, GWL_STYLE, GetWindowLongW(hItem, GWL_STYLE) | WS_GROUP);
/* Set the icon */
switch(lpmb->dwStyle & MB_ICONMASK) {
case MB_ICONEXCLAMATION:
SendDlgItemMessageW(hwnd, MSGBOX_IDICON, STM_SETICON,
(WPARAM)LoadIconW(0, (LPWSTR)IDI_EXCLAMATION), 0);
break;
case MB_ICONQUESTION:
SendDlgItemMessageW(hwnd, MSGBOX_IDICON, STM_SETICON,
(WPARAM)LoadIconW(0, (LPWSTR)IDI_QUESTION), 0);
break;
case MB_ICONASTERISK:
SendDlgItemMessageW(hwnd, MSGBOX_IDICON, STM_SETICON,
(WPARAM)LoadIconW(0, (LPWSTR)IDI_ASTERISK), 0);
break;
case MB_ICONHAND:
SendDlgItemMessageW(hwnd, MSGBOX_IDICON, STM_SETICON,
(WPARAM)LoadIconW(0, (LPWSTR)IDI_HAND), 0);
break;
case MB_USERICON:
SendDlgItemMessageW(hwnd, MSGBOX_IDICON, STM_SETICON,
(WPARAM)LoadIconW(lpmb->hInstance, lpmb->lpszIcon), 0);
break;
default:
/* By default, Windows 95/98/NT do not associate an icon to message boxes.
* So wine should do the same.
*/
break;
}
/* Remove Help button unless MB_HELP supplied */
if (!(lpmb->dwStyle & MB_HELP)) {
DestroyWindow(GetDlgItem(hwnd, IDHELP));
}
/* Position everything */
GetWindowRect(hwnd, &rect);
borheight = rect.bottom - rect.top;
borwidth = rect.right - rect.left;
GetClientRect(hwnd, &rect);
borheight -= rect.bottom - rect.top;
borwidth -= rect.right - rect.left;
/* Get the icon height */
GetWindowRect(GetDlgItem(hwnd, MSGBOX_IDICON), &rect);
MapWindowPoints(0, hwnd, (LPPOINT)&rect, 2);
if (!(lpmb->dwStyle & MB_ICONMASK))
{
rect.bottom = rect.top;
rect.right = rect.left;
}
iheight = rect.bottom - rect.top;
ileft = rect.left;
iwidth = rect.right - ileft;
hdc = GetDC(hwnd);
hPrevFont = SelectObject( hdc, (HFONT)SendMessageW( hwnd, WM_GETFONT, 0, 0 ));
/* Get the number of visible buttons and their size */
bh = bw = 1; /* Minimum button sizes */
for (buttons = 0, i = IDOK; i <= IDCONTINUE; i++)
{
if (i == IDCLOSE) continue; /* No CLOSE button */
hItem = GetDlgItem(hwnd, i);
if (GetWindowLongW(hItem, GWL_STYLE) & WS_VISIBLE)
{
WCHAR buttonText[1024];
int w, h;
buttons++;
if (GetWindowTextW(hItem, buttonText, 1024))
{
DrawTextW( hdc, buttonText, -1, &rect, DT_LEFT | DT_EXPANDTABS | DT_CALCRECT);
h = rect.bottom - rect.top;
w = rect.right - rect.left;
if (h > bh) bh = h;
if (w > bw) bw = w ;
}
}
}
bw = max(bw, bh * 2);
/* Button white space */
bh = bh * 2;
bw = bw * 2;
bspace = bw/3; /* Space between buttons */
/* Get the text size */
GetClientRect(GetDlgItem(hwnd, MSGBOX_IDTEXT), &rect);
rect.top = rect.left = rect.bottom = 0;
DrawTextW( hdc, lpszText, -1, &rect,
DT_LEFT | DT_EXPANDTABS | DT_WORDBREAK | DT_CALCRECT);
/* Min text width corresponds to space for the buttons */
tleft = ileft;
if (iwidth) tleft += ileft + iwidth;
twidth = max((bw + bspace) * buttons + bspace - tleft, rect.right);
theight = rect.bottom;
SelectObject(hdc, hPrevFont);
ReleaseDC(hwnd, hdc);
tiheight = 16 + max(iheight, theight);
wwidth = tleft + twidth + ileft + borwidth;
wheight = 8 + tiheight + bh + borheight;
/* Message boxes are always desktop centered, so query desktop size and center window */
monitor = MonitorFromWindow(lpmb->hwndOwner ? lpmb->hwndOwner : GetActiveWindow(), MONITOR_DEFAULTTOPRIMARY);
mon_info.cbSize = sizeof(mon_info);
GetMonitorInfoW(monitor, &mon_info);
wleft = (mon_info.rcWork.left + mon_info.rcWork.right - wwidth) / 2;
wtop = (mon_info.rcWork.top + mon_info.rcWork.bottom - wheight) / 2;
/* Resize and center the window */
SetWindowPos(hwnd, 0, wleft, wtop, wwidth, wheight,
SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREDRAW);
/* Position the icon */
SetWindowPos(GetDlgItem(hwnd, MSGBOX_IDICON), 0, ileft, (tiheight - iheight) / 2, 0, 0,
SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREDRAW);
/* Position the text */
SetWindowPos(GetDlgItem(hwnd, MSGBOX_IDTEXT), 0, tleft, (tiheight - theight) / 2, twidth, theight,
SWP_NOZORDER | SWP_NOACTIVATE | SWP_NOREDRAW);
/* Position the buttons */
bpos = (wwidth - (bw + bspace) * buttons + bspace) / 2;
for (buttons = i = 0; i < (sizeof(buttonOrder) / sizeof(buttonOrder[0])); i++) {
/* Convert the button order to ID* value to order for the buttons */
hItem = GetDlgItem(hwnd, buttonOrder[i]);
if (GetWindowLongW(hItem, GWL_STYLE) & WS_VISIBLE) {
if (buttons++ == ((lpmb->dwStyle & MB_DEFMASK) >> 8)) {
SetFocus(hItem);
SendMessageW( hItem, BM_SETSTYLE, BS_DEFPUSHBUTTON, TRUE );
}
SetWindowPos(hItem, 0, bpos, tiheight, bw, bh,
SWP_NOZORDER|SWP_NOACTIVATE|SWP_NOREDRAW);
bpos += bw + bspace;
}
}
/*handle modal message boxes*/
if (((lpmb->dwStyle & MB_TASKMODAL) && (lpmb->hwndOwner==NULL)) || (lpmb->dwStyle & MB_SYSTEMMODAL))
SetWindowPos(hwnd, HWND_TOP, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE);
HeapFree( GetProcessHeap(), 0, buffer );
}
/**************************************************************************
* MSGBOX_DlgProc
*
* Dialog procedure for message boxes.
*/
static INT_PTR CALLBACK MSGBOX_DlgProc( HWND hwnd, UINT message,
WPARAM wParam, LPARAM lParam )
{
switch(message) {
case WM_INITDIALOG:
{
LPMSGBOXPARAMSW mbp = (LPMSGBOXPARAMSW)lParam;
SetWindowContextHelpId(hwnd, mbp->dwContextHelpId);
MSGBOX_OnInit(hwnd, mbp);
SetPropA(hwnd, "WINE_MSGBOX_HELPCALLBACK", mbp->lpfnMsgBoxCallback);
break;
}
case WM_COMMAND:
switch (LOWORD(wParam))
{
case IDOK:
case IDCANCEL:
case IDABORT:
case IDRETRY:
case IDIGNORE:
case IDYES:
case IDNO:
case IDTRYAGAIN:
case IDCONTINUE:
EndDialog(hwnd, wParam);
break;
case IDHELP:
FIXME("Help button not supported yet\n");
break;
}
break;
case WM_HELP:
{
MSGBOXCALLBACK callback = (MSGBOXCALLBACK)GetPropA(hwnd, "WINE_MSGBOX_HELPCALLBACK");
HELPINFO hi;
memcpy(&hi, (void *)lParam, sizeof(hi));
hi.dwContextId = GetWindowContextHelpId(hwnd);
if (callback)
callback(&hi);
else
SendMessageW(GetWindow(hwnd, GW_OWNER), WM_HELP, 0, (LPARAM)&hi);
break;
}
default:
/* Ok. Ignore all the other messages */
TRACE("Message number 0x%04x is being ignored.\n", message);
break;
}
return 0;
}
/**************************************************************************
* MessageBoxA (USER32.@)
*/
INT WINAPI MessageBoxA(HWND hWnd, LPCSTR text, LPCSTR title, UINT type)
{
return MessageBoxExA(hWnd, text, title, type, LANG_NEUTRAL);
}
/**************************************************************************
* MessageBoxW (USER32.@)
*/
INT WINAPI MessageBoxW( HWND hwnd, LPCWSTR text, LPCWSTR title, UINT type )
{
return MessageBoxExW(hwnd, text, title, type, LANG_NEUTRAL);
}
/**************************************************************************
* MessageBoxExA (USER32.@)
*/
INT WINAPI MessageBoxExA( HWND hWnd, LPCSTR text, LPCSTR title,
UINT type, WORD langid )
{
MSGBOXPARAMSA msgbox;
msgbox.cbSize = sizeof(msgbox);
msgbox.hwndOwner = hWnd;
msgbox.hInstance = 0;
msgbox.lpszText = text;
msgbox.lpszCaption = title;
msgbox.dwStyle = type;
msgbox.lpszIcon = NULL;
msgbox.dwContextHelpId = 0;
msgbox.lpfnMsgBoxCallback = NULL;
msgbox.dwLanguageId = langid;
return MessageBoxIndirectA(&msgbox);
}
/**************************************************************************
* MessageBoxExW (USER32.@)
*/
INT WINAPI MessageBoxExW( HWND hWnd, LPCWSTR text, LPCWSTR title,
UINT type, WORD langid )
{
MSGBOXPARAMSW msgbox;
msgbox.cbSize = sizeof(msgbox);
msgbox.hwndOwner = hWnd;
msgbox.hInstance = 0;
msgbox.lpszText = text;
msgbox.lpszCaption = title;
msgbox.dwStyle = type;
msgbox.lpszIcon = NULL;
msgbox.dwContextHelpId = 0;
msgbox.lpfnMsgBoxCallback = NULL;
msgbox.dwLanguageId = langid;
return MessageBoxIndirectW(&msgbox);
}
/**************************************************************************
* MessageBoxTimeoutA (USER32.@)
*/
INT WINAPI MessageBoxTimeoutA( HWND hWnd, LPCSTR text, LPCSTR title,
UINT type, WORD langid, DWORD timeout )
{
FIXME("timeout not supported (%u)\n", timeout);
return MessageBoxExA( hWnd, text, title, type, langid );
}
/**************************************************************************
* MessageBoxTimeoutW (USER32.@)
*/
INT WINAPI MessageBoxTimeoutW( HWND hWnd, LPCWSTR text, LPCWSTR title,
UINT type, WORD langid, DWORD timeout )
{
FIXME("timeout not supported (%u)\n", timeout);
return MessageBoxExW( hWnd, text, title, type, langid );
}
/**************************************************************************
* MessageBoxIndirectA (USER32.@)
*/
INT WINAPI MessageBoxIndirectA( LPMSGBOXPARAMSA msgbox )
{
MSGBOXPARAMSW msgboxW;
UNICODE_STRING textW, captionW, iconW;
int ret;
if (IS_INTRESOURCE(msgbox->lpszText))
textW.Buffer = (LPWSTR)msgbox->lpszText;
else
RtlCreateUnicodeStringFromAsciiz(&textW, msgbox->lpszText);
if (IS_INTRESOURCE(msgbox->lpszCaption))
captionW.Buffer = (LPWSTR)msgbox->lpszCaption;
else
RtlCreateUnicodeStringFromAsciiz(&captionW, msgbox->lpszCaption);
if (msgbox->dwStyle & MB_USERICON)
{
if (IS_INTRESOURCE(msgbox->lpszIcon))
iconW.Buffer = (LPWSTR)msgbox->lpszIcon;
else
RtlCreateUnicodeStringFromAsciiz(&iconW, msgbox->lpszIcon);
}
else
iconW.Buffer = NULL;
msgboxW.cbSize = sizeof(msgboxW);
msgboxW.hwndOwner = msgbox->hwndOwner;
msgboxW.hInstance = msgbox->hInstance;
msgboxW.lpszText = textW.Buffer;
msgboxW.lpszCaption = captionW.Buffer;
msgboxW.dwStyle = msgbox->dwStyle;
msgboxW.lpszIcon = iconW.Buffer;
msgboxW.dwContextHelpId = msgbox->dwContextHelpId;
msgboxW.lpfnMsgBoxCallback = msgbox->lpfnMsgBoxCallback;
msgboxW.dwLanguageId = msgbox->dwLanguageId;
ret = MessageBoxIndirectW(&msgboxW);
if (!IS_INTRESOURCE(textW.Buffer)) RtlFreeUnicodeString(&textW);
if (!IS_INTRESOURCE(captionW.Buffer)) RtlFreeUnicodeString(&captionW);
if (!IS_INTRESOURCE(iconW.Buffer)) RtlFreeUnicodeString(&iconW);
return ret;
}
/**************************************************************************
* MessageBoxIndirectW (USER32.@)
*/
INT WINAPI MessageBoxIndirectW( LPMSGBOXPARAMSW msgbox )
{
LPVOID tmplate;
HRSRC hRes;
int ret;
UINT i;
struct ThreadWindows threadWindows;
static const WCHAR msg_box_res_nameW[] = { 'M','S','G','B','O','X',0 };
if (!(hRes = FindResourceExW(user32_module, (LPWSTR)RT_DIALOG,
msg_box_res_nameW, msgbox->dwLanguageId)))
{
if (!msgbox->dwLanguageId ||
!(hRes = FindResourceExW(user32_module, (LPWSTR)RT_DIALOG, msg_box_res_nameW, LANG_NEUTRAL)))
return 0;
}
if (!(tmplate = LoadResource(user32_module, hRes)))
return 0;
if ((msgbox->dwStyle & MB_TASKMODAL) && (msgbox->hwndOwner==NULL))
{
threadWindows.numHandles = 0;
threadWindows.numAllocs = 10;
threadWindows.handles = HeapAlloc(GetProcessHeap(), 0, 10*sizeof(HWND));
EnumThreadWindows(GetCurrentThreadId(), MSGBOX_EnumProc, (LPARAM)&threadWindows);
}
ret=DialogBoxIndirectParamW(msgbox->hInstance, tmplate,
msgbox->hwndOwner, MSGBOX_DlgProc, (LPARAM)msgbox);
if ((msgbox->dwStyle & MB_TASKMODAL) && (msgbox->hwndOwner==NULL))
{
for (i = 0; i < threadWindows.numHandles; i++)
EnableWindow(threadWindows.handles[i], TRUE);
HeapFree(GetProcessHeap(), 0, threadWindows.handles);
}
return ret;
}
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