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0c32905ccc
wine/dlls/shell32/shell.c
Alexandre Julliard 0c32905ccc Install the shell hook as a 32-bit hook.
2002-10-25 19:26:46 +00:00

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/*
* Shell Library Functions
*
* Copyright 1998 Marcus Meissner
* Copyright 2002 Eric Pouech
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "config.h"
#include "wine/port.h"
#include <stdlib.h>
#include <string.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#include <ctype.h>
#include "windef.h"
#include "winerror.h"
#include "winreg.h"
#include "wownt32.h"
#include "dlgs.h"
#include "shellapi.h"
#include "shlobj.h"
#include "shlwapi.h"
#include "ddeml.h"
#include "wine/winbase16.h"
#include "wine/winuser16.h"
#include "shell32_main.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(shell);
WINE_DECLARE_DEBUG_CHANNEL(exec);
typedef struct { /* structure for dropped files */
WORD wSize;
POINT16 ptMousePos;
BOOL16 fInNonClientArea;
/* memory block with filenames follows */
} DROPFILESTRUCT16, *LPDROPFILESTRUCT16;
static const char* lpstrMsgWndCreated = "OTHERWINDOWCREATED";
static const char* lpstrMsgWndDestroyed = "OTHERWINDOWDESTROYED";
static const char* lpstrMsgShellActivate = "ACTIVATESHELLWINDOW";
static HWND SHELL_hWnd = 0;
static HHOOK SHELL_hHook = 0;
static UINT uMsgWndCreated = 0;
static UINT uMsgWndDestroyed = 0;
static UINT uMsgShellActivate = 0;
HINSTANCE16 SHELL_hInstance = 0;
HINSTANCE SHELL_hInstance32;
static int SHELL_Attach = 0;
/***********************************************************************
* DllEntryPoint [SHELL.101]
*
* Initialization code for shell.dll. Automatically loads the
* 32-bit shell32.dll to allow thunking up to 32-bit code.
*
* RETURNS:
*/
BOOL WINAPI SHELL_DllEntryPoint(DWORD Reason, HINSTANCE16 hInst,
WORD ds, WORD HeapSize, DWORD res1, WORD res2)
{
TRACE("(%08lx, %04x, %04x, %04x, %08lx, %04x)\n",
Reason, hInst, ds, HeapSize, res1, res2);
switch(Reason)
{
case DLL_PROCESS_ATTACH:
if (SHELL_Attach++) break;
SHELL_hInstance = hInst;
if(!SHELL_hInstance32)
{
if(!(SHELL_hInstance32 = LoadLibraryA("shell32.dll")))
{
ERR("Could not load sibling shell32.dll\n");
return FALSE;
}
}
break;
case DLL_PROCESS_DETACH:
if(!--SHELL_Attach)
{
SHELL_hInstance = 0;
if(SHELL_hInstance32)
FreeLibrary(SHELL_hInstance32);
}
break;
}
return TRUE;
}
/*************************************************************************
* DragAcceptFiles [SHELL.9]
*/
void WINAPI DragAcceptFiles16(HWND16 hWnd, BOOL16 b)
{
DragAcceptFiles(HWND_32(hWnd), b);
}
/*************************************************************************
* DragQueryFile [SHELL.11]
*/
UINT16 WINAPI DragQueryFile16(
HDROP16 hDrop,
WORD wFile,
LPSTR lpszFile,
WORD wLength)
{
LPSTR lpDrop;
UINT i = 0;
LPDROPFILESTRUCT16 lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
TRACE("(%04x, %x, %p, %u)\n", hDrop,wFile,lpszFile,wLength);
if(!lpDropFileStruct) goto end;
lpDrop = (LPSTR) lpDropFileStruct + lpDropFileStruct->wSize;
wFile = (wFile==0xffff) ? 0xffffffff : wFile;
while (i++ < wFile)
{
while (*lpDrop++); /* skip filename */
if (!*lpDrop)
{
i = (wFile == 0xFFFFFFFF) ? i : 0;
goto end;
}
}
i = strlen(lpDrop);
i++;
if (!lpszFile ) goto end; /* needed buffer size */
i = (wLength > i) ? i : wLength;
lstrcpynA (lpszFile, lpDrop, i);
end:
GlobalUnlock16(hDrop);
return i;
}
/*************************************************************************
* DragFinish [SHELL.12]
*/
void WINAPI DragFinish16(HDROP16 h)
{
TRACE("\n");
GlobalFree16((HGLOBAL16)h);
}
/*************************************************************************
* DragQueryPoint [SHELL.13]
*/
BOOL16 WINAPI DragQueryPoint16(HDROP16 hDrop, POINT16 *p)
{
LPDROPFILESTRUCT16 lpDropFileStruct;
BOOL16 bRet;
TRACE("\n");
lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
memcpy(p,&lpDropFileStruct->ptMousePos,sizeof(POINT16));
bRet = lpDropFileStruct->fInNonClientArea;
GlobalUnlock16(hDrop);
return bRet;
}
/*************************************************************************
* FindExecutable (SHELL.21)
*/
HINSTANCE16 WINAPI FindExecutable16( LPCSTR lpFile, LPCSTR lpDirectory,
LPSTR lpResult )
{ return (HINSTANCE16)FindExecutableA( lpFile, lpDirectory, lpResult );
}
/*************************************************************************
* AboutDlgProc (SHELL.33)
*/
BOOL16 WINAPI AboutDlgProc16( HWND16 hWnd, UINT16 msg, WPARAM16 wParam,
LPARAM lParam )
{ return AboutDlgProc( HWND_32(hWnd), msg, wParam, lParam );
}
/*************************************************************************
* ShellAbout (SHELL.22)
*/
BOOL16 WINAPI ShellAbout16( HWND16 hWnd, LPCSTR szApp, LPCSTR szOtherStuff,
HICON16 hIcon )
{ return ShellAboutA( HWND_32(hWnd), szApp, szOtherStuff, HICON_32(hIcon) );
}
/*************************************************************************
* InternalExtractIcon [SHELL.39]
*
* This abortion is called directly by Progman
*/
HGLOBAL16 WINAPI InternalExtractIcon16(HINSTANCE16 hInstance,
LPCSTR lpszExeFileName, UINT16 nIconIndex, WORD n )
{
HGLOBAL16 hRet = 0;
HICON16 *RetPtr = NULL;
OFSTRUCT ofs;
HFILE hFile;
TRACE("(%04x,file %s,start %d,extract %d\n",
hInstance, lpszExeFileName, nIconIndex, n);
if( !n )
return 0;
hFile = OpenFile( lpszExeFileName, &ofs, OF_READ|OF_EXIST );
hRet = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, sizeof(HICON16)*n);
RetPtr = (HICON16*)GlobalLock16(hRet);
if (hFile == HFILE_ERROR)
{ /* not found - load from builtin module if available */
HINSTANCE hInst = (HINSTANCE)LoadLibrary16(lpszExeFileName);
if (hInst < 32) /* hmm, no Win16 module - try Win32 :-) */
hInst = LoadLibraryA(lpszExeFileName);
if (hInst)
{
int i;
for (i=nIconIndex; i < nIconIndex + n; i++)
RetPtr[i-nIconIndex] =
HICON_16(LoadIconA(hInst, (LPCSTR)(DWORD)i));
FreeLibrary(hInst);
return hRet;
}
GlobalFree16( hRet );
return 0;
}
if (nIconIndex == (UINT16)-1) /* get number of icons */
{
RetPtr[0] = PrivateExtractIconsA( ofs.szPathName, -1, 0, 0, NULL, 0, 0, 0 );
}
else
{
HRESULT res;
HICON *icons;
icons = HeapAlloc( GetProcessHeap(), 0, n * sizeof(*icons) );
res = PrivateExtractIconsA( ofs.szPathName, nIconIndex,
GetSystemMetrics(SM_CXICON),
GetSystemMetrics(SM_CYICON),
icons, 0, n, 0 );
if (!res)
{
int i;
for (i = 0; i < n; i++) RetPtr[i] = HICON_16(icons[i]);
}
else
{
GlobalFree16( hRet );
hRet = 0;
}
HeapFree( GetProcessHeap(), 0, icons );
}
return hRet;
}
/*************************************************************************
* ExtractIcon (SHELL.34)
*/
HICON16 WINAPI ExtractIcon16( HINSTANCE16 hInstance, LPCSTR lpszExeFileName,
UINT16 nIconIndex )
{ TRACE("\n");
return HICON_16(ExtractIconA(HINSTANCE_32(hInstance), lpszExeFileName, nIconIndex));
}
/*************************************************************************
* ExtractIconEx (SHELL.40)
*/
HICON16 WINAPI ExtractIconEx16(
LPCSTR lpszFile, INT16 nIconIndex, HICON16 *phiconLarge,
HICON16 *phiconSmall, UINT16 nIcons
) {
HICON *ilarge,*ismall;
UINT16 ret;
int i;
if (phiconLarge)
ilarge = (HICON*)HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
else
ilarge = NULL;
if (phiconSmall)
ismall = (HICON*)HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
else
ismall = NULL;
ret = HICON_16(ExtractIconExA(lpszFile,nIconIndex,ilarge,ismall,nIcons));
if (ilarge) {
for (i=0;i<nIcons;i++)
phiconLarge[i]=HICON_16(ilarge[i]);
HeapFree(GetProcessHeap(),0,ilarge);
}
if (ismall) {
for (i=0;i<nIcons;i++)
phiconSmall[i]=HICON_16(ismall[i]);
HeapFree(GetProcessHeap(),0,ismall);
}
return ret;
}
/*************************************************************************
* ExtractAssociatedIcon [SHELL.36]
*
* Return icon for given file (either from file itself or from associated
* executable) and patch parameters if needed.
*/
HICON16 WINAPI ExtractAssociatedIcon16(HINSTANCE16 hInst, LPSTR lpIconPath, LPWORD lpiIcon)
{
return HICON_16(ExtractAssociatedIconA(HINSTANCE_32(hInst), lpIconPath,
lpiIcon));
}
/*************************************************************************
* FindEnvironmentString [SHELL.38]
*
* Returns a pointer into the DOS environment... Ugh.
*/
LPSTR SHELL_FindString(LPSTR lpEnv, LPCSTR entry)
{ UINT16 l;
TRACE("\n");
l = strlen(entry);
for( ; *lpEnv ; lpEnv+=strlen(lpEnv)+1 )
{ if( strncasecmp(lpEnv, entry, l) )
continue;
if( !*(lpEnv+l) )
return (lpEnv + l); /* empty entry */
else if ( *(lpEnv+l)== '=' )
return (lpEnv + l + 1);
}
return NULL;
}
/**********************************************************************/
SEGPTR WINAPI FindEnvironmentString16(LPSTR str)
{ SEGPTR spEnv;
LPSTR lpEnv,lpString;
TRACE("\n");
spEnv = GetDOSEnvironment16();
lpEnv = MapSL(spEnv);
lpString = (spEnv)?SHELL_FindString(lpEnv, str):NULL;
if( lpString ) /* offset should be small enough */
return spEnv + (lpString - lpEnv);
return (SEGPTR)NULL;
}
/*************************************************************************
* DoEnvironmentSubst [SHELL.37]
*
* Replace %KEYWORD% in the str with the value of variable KEYWORD
* from "DOS" environment.
*/
DWORD WINAPI DoEnvironmentSubst16(LPSTR str,WORD length)
{
LPSTR lpEnv = MapSL(GetDOSEnvironment16());
LPSTR lpBuffer = (LPSTR)HeapAlloc( GetProcessHeap(), 0, length);
LPSTR lpstr = str;
LPSTR lpbstr = lpBuffer;
CharToOemA(str,str);
TRACE("accept %s\n", str);
while( *lpstr && lpbstr - lpBuffer < length )
{
LPSTR lpend = lpstr;
if( *lpstr == '%' )
{
do { lpend++; } while( *lpend && *lpend != '%' );
if( *lpend == '%' && lpend - lpstr > 1 ) /* found key */
{
LPSTR lpKey;
*lpend = '\0';
lpKey = SHELL_FindString(lpEnv, lpstr+1);
if( lpKey ) /* found key value */
{
int l = strlen(lpKey);
if( l > length - (lpbstr - lpBuffer) - 1 )
{
WARN("-- Env subst aborted - string too short\n");
*lpend = '%';
break;
}
strcpy(lpbstr, lpKey);
lpbstr += l;
}
else break;
*lpend = '%';
lpstr = lpend + 1;
}
else break; /* back off and whine */
continue;
}
*lpbstr++ = *lpstr++;
}
*lpbstr = '\0';
if( lpstr - str == strlen(str) )
{
strncpy(str, lpBuffer, length);
length = 1;
}
else
length = 0;
TRACE("-- return %s\n", str);
OemToCharA(str,str);
HeapFree( GetProcessHeap(), 0, lpBuffer);
/* Return str length in the LOWORD
* and 1 in HIWORD if subst was successful.
*/
return (DWORD)MAKELONG(strlen(str), length);
}
/*************************************************************************
* SHELL_HookProc
*
* 32-bit version of the system-wide WH_SHELL hook.
*/
static LRESULT WINAPI SHELL_HookProc(INT code, WPARAM wParam, LPARAM lParam)
{
TRACE("%i, %x, %08lx\n", code, wParam, lParam );
if (SHELL_hWnd)
{
switch( code )
{
case HSHELL_WINDOWCREATED:
PostMessageA( SHELL_hWnd, uMsgWndCreated, wParam, 0 );
break;
case HSHELL_WINDOWDESTROYED:
PostMessageA( SHELL_hWnd, uMsgWndDestroyed, wParam, 0 );
break;
case HSHELL_ACTIVATESHELLWINDOW:
PostMessageA( SHELL_hWnd, uMsgShellActivate, wParam, 0 );
break;
}
}
return CallNextHookEx( SHELL_hHook, code, wParam, lParam );
}
/*************************************************************************
* ShellHookProc [SHELL.103]
* System-wide WH_SHELL hook.
*/
LRESULT WINAPI ShellHookProc16(INT16 code, WPARAM16 wParam, LPARAM lParam)
{
return SHELL_HookProc( code, wParam, lParam );
}
/*************************************************************************
* RegisterShellHook [SHELL.102]
*/
BOOL WINAPI RegisterShellHook16(HWND16 hWnd, UINT16 uAction)
{
TRACE("%04x [%u]\n", hWnd, uAction );
switch( uAction )
{
case 2: /* register hWnd as a shell window */
if( !SHELL_hHook )
{
SHELL_hHook = SetWindowsHookExA( WH_SHELL, SHELL_HookProc,
GetModuleHandleA("shell32.dll"), 0 );
if ( SHELL_hHook )
{
uMsgWndCreated = RegisterWindowMessageA( lpstrMsgWndCreated );
uMsgWndDestroyed = RegisterWindowMessageA( lpstrMsgWndDestroyed );
uMsgShellActivate = RegisterWindowMessageA( lpstrMsgShellActivate );
}
else
WARN("-- unable to install ShellHookProc()!\n");
}
if ( SHELL_hHook )
return ((SHELL_hWnd = HWND_32(hWnd)) != 0);
break;
default:
WARN("-- unknown code %i\n", uAction );
SHELL_hWnd = 0; /* just in case */
}
return FALSE;
}
/***********************************************************************
* DriveType (SHELL.262)
*/
UINT16 WINAPI DriveType16( UINT16 drive )
{
UINT ret;
char path[] = "A:\\";
path[0] += drive;
ret = GetDriveTypeA(path);
switch(ret) /* some values are not supported in Win16 */
{
case DRIVE_CDROM:
ret = DRIVE_REMOTE;
break;
case DRIVE_NO_ROOT_DIR:
ret = DRIVE_UNKNOWN;
break;
}
return ret;
}
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