dlls/shell32/shell.c

   1 /*
   2  *                              Shell Library Functions
   3  *
   4  * Copyright 1998 Marcus Meissner
   5  * Copyright 2000 Juergen Schmied
   6  * Copyright 2002 Eric Pouech
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #include "config.h"
  24 #include "wine/port.h"
  25
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #ifdef HAVE_UNISTD_H
  29 # include <unistd.h>
  30 #endif
  31 #include <ctype.h>
  32
  33 #include "windef.h"
  34 #include "winerror.h"
  35 #include "winreg.h"
  36 #include "wownt32.h"
  37 #include "dlgs.h"
  38 #include "shellapi.h"
  39 #include "shlobj.h"
  40 #include "shlwapi.h"
  41 #include "ddeml.h"
  42
  43 #include "wine/winbase16.h"
  44 #include "wine/winuser16.h"
  45 #include "shell32_main.h"
  46
  47 #include "wine/debug.h"
  48
  49 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  50 WINE_DECLARE_DEBUG_CHANNEL(exec);
  51
  52
  53 typedef struct {     /* structure for dropped files */
  54  WORD     wSize;
  55  POINT16  ptMousePos;
  56  BOOL16   fInNonClientArea;
  57  /* memory block with filenames follows */
  58 } DROPFILESTRUCT16, *LPDROPFILESTRUCT16;
  59
  60 static const char*      lpstrMsgWndCreated = "OTHERWINDOWCREATED";
  61 static const char*      lpstrMsgWndDestroyed = "OTHERWINDOWDESTROYED";
  62 static const char*      lpstrMsgShellActivate = "ACTIVATESHELLWINDOW";
  63
  64 static HWND     SHELL_hWnd = 0;
  65 static HHOOK    SHELL_hHook = 0;
  66 static UINT     uMsgWndCreated = 0;
  67 static UINT     uMsgWndDestroyed = 0;
  68 static UINT     uMsgShellActivate = 0;
  69 HINSTANCE16     SHELL_hInstance = 0;
  70 HINSTANCE SHELL_hInstance32;
  71 static int SHELL_Attach = 0;
  72
  73 /***********************************************************************
  74  * DllEntryPoint [SHELL.101]
  75  *
  76  * Initialization code for shell.dll. Automatically loads the
  77  * 32-bit shell32.dll to allow thunking up to 32-bit code.
  78  *
  79  * RETURNS
  80  *  Success: TRUE. Initialization completed successfully.
  81  *  Failure: FALSE.
  82  */
  83 BOOL WINAPI SHELL_DllEntryPoint(DWORD Reason, HINSTANCE16 hInst,
  84                                 WORD ds, WORD HeapSize, DWORD res1, WORD res2)
  85 {
  86     TRACE("(%08lx, %04x, %04x, %04x, %08lx, %04x)\n",
  87           Reason, hInst, ds, HeapSize, res1, res2);
  88
  89     switch(Reason)
  90     {
  91     case DLL_PROCESS_ATTACH:
  92         if (SHELL_Attach++) break;
  93         SHELL_hInstance = hInst;
  94         if(!SHELL_hInstance32)
  95         {
  96             if(!(SHELL_hInstance32 = LoadLibraryA("shell32.dll")))
  97             {
  98                 ERR("Could not load sibling shell32.dll\n");
  99                 return FALSE;
 100             }
 101         }
 102         break;
 103
 104     case DLL_PROCESS_DETACH:
 105         if(!--SHELL_Attach)
 106         {
 107             SHELL_hInstance = 0;
 108             if(SHELL_hInstance32)
 109                 FreeLibrary(SHELL_hInstance32);
 110         }
 111         break;
 112     }
 113     return TRUE;
 114 }
 115
 116 /*************************************************************************
 117  *                              DragAcceptFiles         [SHELL.9]
 118  */
 119 void WINAPI DragAcceptFiles16(HWND16 hWnd, BOOL16 b)
 120 {
 121   DragAcceptFiles(HWND_32(hWnd), b);
 122 }
 123
 124 /*************************************************************************
 125  *                              DragQueryFile           [SHELL.11]
 126  */
 127 UINT16 WINAPI DragQueryFile16(
 128         HDROP16 hDrop,
 129         WORD wFile,
 130         LPSTR lpszFile,
 131         WORD wLength)
 132 {
 133         LPSTR lpDrop;
 134         UINT i = 0;
 135         LPDROPFILESTRUCT16 lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
 136
 137         TRACE("(%04x, %x, %p, %u)\n", hDrop,wFile,lpszFile,wLength);
 138
 139         if(!lpDropFileStruct) goto end;
 140
 141         lpDrop = (LPSTR) lpDropFileStruct + lpDropFileStruct->wSize;
 142
 143         while (i++ < wFile)
 144         {
 145           while (*lpDrop++); /* skip filename */
 146           if (!*lpDrop)
 147           {
 148             i = (wFile == 0xFFFF) ? i : 0;
 149             goto end;
 150           }
 151         }
 152
 153         i = strlen(lpDrop);
 154         i++;
 155         if (!lpszFile ) goto end;   /* needed buffer size */
 156         i = (wLength > i) ? i : wLength;
 157         lstrcpynA (lpszFile,  lpDrop,  i);
 158 end:
 159         GlobalUnlock16(hDrop);
 160         return i;
 161 }
 162
 163 /*************************************************************************
 164  *                              DragFinish              [SHELL.12]
 165  */
 166 void WINAPI DragFinish16(HDROP16 h)
 167 {
 168     TRACE("\n");
 169     GlobalFree16((HGLOBAL16)h);
 170 }
 171
 172
 173 /*************************************************************************
 174  *                              DragQueryPoint          [SHELL.13]
 175  */
 176 BOOL16 WINAPI DragQueryPoint16(HDROP16 hDrop, POINT16 *p)
 177 {
 178   LPDROPFILESTRUCT16 lpDropFileStruct;
 179   BOOL16           bRet;
 180   TRACE("\n");
 181   lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
 182
 183   memcpy(p,&lpDropFileStruct->ptMousePos,sizeof(POINT16));
 184   bRet = lpDropFileStruct->fInNonClientArea;
 185
 186   GlobalUnlock16(hDrop);
 187   return bRet;
 188 }
 189
 190 /*************************************************************************
 191  *             FindExecutable   (SHELL.21)
 192  */
 193 HINSTANCE16 WINAPI FindExecutable16( LPCSTR lpFile, LPCSTR lpDirectory,
 194                                      LPSTR lpResult )
 195 { return HINSTANCE_16(FindExecutableA( lpFile, lpDirectory, lpResult ));
 196 }
 197
 198 /*************************************************************************
 199  *             AboutDlgProc   (SHELL.33)
 200  */
 201 BOOL16 WINAPI AboutDlgProc16( HWND16 hWnd, UINT16 msg, WPARAM16 wParam,
 202                                LPARAM lParam )
 203 { return (BOOL16)AboutDlgProc( HWND_32(hWnd), msg, wParam, lParam );
 204 }
 205
 206
 207 /*************************************************************************
 208  *             ShellAbout   (SHELL.22)
 209  */
 210 BOOL16 WINAPI ShellAbout16( HWND16 hWnd, LPCSTR szApp, LPCSTR szOtherStuff,
 211                             HICON16 hIcon )
 212 { return ShellAboutA( HWND_32(hWnd), szApp, szOtherStuff, HICON_32(hIcon) );
 213 }
 214
 215 /*************************************************************************
 216  *                      InternalExtractIcon             [SHELL.39]
 217  *
 218  * This abortion is called directly by Progman
 219  */
 220 HGLOBAL16 WINAPI InternalExtractIcon16(HINSTANCE16 hInstance,
 221                                      LPCSTR lpszExeFileName, UINT16 nIconIndex, WORD n )
 222 {
 223     HGLOBAL16 hRet = 0;
 224     HICON16 *RetPtr = NULL;
 225     OFSTRUCT ofs;
 226
 227         TRACE("(%04x,file %s,start %d,extract %d\n",
 228                        hInstance, lpszExeFileName, nIconIndex, n);
 229
 230         if (!n)
 231           return 0;
 232
 233         hRet = GlobalAlloc16(GMEM_FIXED | GMEM_ZEROINIT, sizeof(*RetPtr) * n);
 234         RetPtr = (HICON16*)GlobalLock16(hRet);
 235
 236         if (nIconIndex == (UINT16)-1)  /* get number of icons */
 237         {
 238           RetPtr[0] = PrivateExtractIconsA(ofs.szPathName, 0, 0, 0, NULL, NULL, 0, LR_DEFAULTCOLOR);
 239         }
 240         else
 241         {
 242           UINT ret;
 243           HICON *icons;
 244
 245           icons = HeapAlloc(GetProcessHeap(), 0, n * sizeof(*icons));
 246           ret = PrivateExtractIconsA(ofs.szPathName, nIconIndex,
 247                                      GetSystemMetrics(SM_CXICON),
 248                                      GetSystemMetrics(SM_CYICON),
 249                                      icons, NULL, n, LR_DEFAULTCOLOR);
 250           if ((ret != 0xffffffff) && ret)
 251           {
 252             int i;
 253             for (i = 0; i < n; i++) RetPtr[i] = HICON_16(icons[i]);
 254           }
 255           else
 256           {
 257             GlobalFree16(hRet);
 258             hRet = 0;
 259           }
 260           HeapFree(GetProcessHeap(), 0, icons);
 261         }
 262         return hRet;
 263 }
 264
 265 /*************************************************************************
 266  *             ExtractIcon   (SHELL.34)
 267  */
 268 HICON16 WINAPI ExtractIcon16( HINSTANCE16 hInstance, LPCSTR lpszExeFileName,
 269         UINT16 nIconIndex )
 270 {   TRACE("\n");
 271     return HICON_16(ExtractIconA(HINSTANCE_32(hInstance), lpszExeFileName, nIconIndex));
 272 }
 273
 274 /*************************************************************************
 275  *             ExtractIconEx   (SHELL.40)
 276  */
 277 HICON16 WINAPI ExtractIconEx16(
 278         LPCSTR lpszFile, INT16 nIconIndex, HICON16 *phiconLarge,
 279         HICON16 *phiconSmall, UINT16 nIcons
 280 ) {
 281     HICON       *ilarge,*ismall;
 282     UINT16      ret;
 283     int         i;
 284
 285     if (phiconLarge)
 286         ilarge = (HICON*)HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
 287     else
 288         ilarge = NULL;
 289     if (phiconSmall)
 290         ismall = (HICON*)HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
 291     else
 292         ismall = NULL;
 293     ret = HICON_16(ExtractIconExA(lpszFile,nIconIndex,ilarge,ismall,nIcons));
 294     if (ilarge) {
 295         for (i=0;i<nIcons;i++)
 296             phiconLarge[i]=HICON_16(ilarge[i]);
 297         HeapFree(GetProcessHeap(),0,ilarge);
 298     }
 299     if (ismall) {
 300         for (i=0;i<nIcons;i++)
 301             phiconSmall[i]=HICON_16(ismall[i]);
 302         HeapFree(GetProcessHeap(),0,ismall);
 303     }
 304     return ret;
 305 }
 306
 307 /*************************************************************************
 308  *                              ExtractAssociatedIcon   [SHELL.36]
 309  *
 310  * Return icon for given file (either from file itself or from associated
 311  * executable) and patch parameters if needed.
 312  */
 313 HICON16 WINAPI ExtractAssociatedIcon16(HINSTANCE16 hInst, LPSTR lpIconPath, LPWORD lpiIcon)
 314 {
 315     return HICON_16(ExtractAssociatedIconA(HINSTANCE_32(hInst), lpIconPath,
 316                     lpiIcon));
 317 }
 318
 319 /*************************************************************************
 320  *                              FindEnvironmentString   [SHELL.38]
 321  *
 322  * Returns a pointer into the DOS environment... Ugh.
 323  */
 324 static LPSTR SHELL_FindString(LPSTR lpEnv, LPCSTR entry)
 325 { UINT16 l;
 326
 327   TRACE("\n");
 328
 329   l = strlen(entry);
 330   for( ; *lpEnv ; lpEnv+=strlen(lpEnv)+1 )
 331   { if( strncasecmp(lpEnv, entry, l) )
 332       continue;
 333         if( !*(lpEnv+l) )
 334             return (lpEnv + l);                 /* empty entry */
 335         else if ( *(lpEnv+l)== '=' )
 336             return (lpEnv + l + 1);
 337     }
 338     return NULL;
 339 }
 340
 341 /**********************************************************************/
 342
 343 SEGPTR WINAPI FindEnvironmentString16(LPSTR str)
 344 { SEGPTR  spEnv;
 345   LPSTR lpEnv,lpString;
 346   TRACE("\n");
 347
 348   spEnv = GetDOSEnvironment16();
 349
 350   lpEnv = MapSL(spEnv);
 351   lpString = (spEnv)?SHELL_FindString(lpEnv, str):NULL;
 352
 353     if( lpString )              /*  offset should be small enough */
 354         return spEnv + (lpString - lpEnv);
 355     return (SEGPTR)NULL;
 356 }
 357
 358 /*************************************************************************
 359  *                              DoEnvironmentSubst      [SHELL.37]
 360  *
 361  * Replace %KEYWORD% in the str with the value of variable KEYWORD
 362  * from "DOS" environment.
 363  */
 364 DWORD WINAPI DoEnvironmentSubst16(LPSTR str,WORD length)
 365 {
 366   LPSTR   lpEnv = MapSL(GetDOSEnvironment16());
 367   LPSTR   lpBuffer = (LPSTR)HeapAlloc( GetProcessHeap(), 0, length);
 368   LPSTR   lpstr = str;
 369   LPSTR   lpbstr = lpBuffer;
 370
 371   CharToOemA(str,str);
 372
 373   TRACE("accept %s\n", str);
 374
 375   while( *lpstr && lpbstr - lpBuffer < length )
 376    {
 377      LPSTR lpend = lpstr;
 378
 379      if( *lpstr == '%' )
 380        {
 381           do { lpend++; } while( *lpend && *lpend != '%' );
 382           if( *lpend == '%' && lpend - lpstr > 1 )      /* found key */
 383             {
 384                LPSTR lpKey;
 385               *lpend = '\0';
 386                lpKey = SHELL_FindString(lpEnv, lpstr+1);
 387                if( lpKey )                              /* found key value */
 388                  {
 389                    int l = strlen(lpKey);
 390
 391                    if( l > length - (lpbstr - lpBuffer) - 1 )
 392                      {
 393            WARN("-- Env subst aborted - string too short\n");
 394                       *lpend = '%';
 395                        break;
 396                      }
 397                    strcpy(lpbstr, lpKey);
 398                    lpbstr += l;
 399                  }
 400                else break;
 401               *lpend = '%';
 402                lpstr = lpend + 1;
 403             }
 404           else break;                                   /* back off and whine */
 405
 406           continue;
 407        }
 408
 409      *lpbstr++ = *lpstr++;
 410    }
 411
 412  *lpbstr = '\0';
 413   if( lpstr - str == strlen(str) )
 414     {
 415       strncpy(str, lpBuffer, length);
 416       length = 1;
 417     }
 418   else
 419       length = 0;
 420
 421   TRACE("-- return %s\n", str);
 422
 423   OemToCharA(str,str);
 424   HeapFree( GetProcessHeap(), 0, lpBuffer);
 425
 426   /*  Return str length in the LOWORD
 427    *  and 1 in HIWORD if subst was successful.
 428    */
 429  return (DWORD)MAKELONG(strlen(str), length);
 430 }
 431
 432 /*************************************************************************
 433  *                              SHELL_HookProc
 434  *
 435  * 32-bit version of the system-wide WH_SHELL hook.
 436  */
 437 static LRESULT WINAPI SHELL_HookProc(INT code, WPARAM wParam, LPARAM lParam)
 438 {
 439     TRACE("%i, %x, %08lx\n", code, wParam, lParam );
 440
 441     if (SHELL_hWnd)
 442     {
 443         switch( code )
 444         {
 445         case HSHELL_WINDOWCREATED:
 446             PostMessageA( SHELL_hWnd, uMsgWndCreated, wParam, 0 );
 447             break;
 448         case HSHELL_WINDOWDESTROYED:
 449             PostMessageA( SHELL_hWnd, uMsgWndDestroyed, wParam, 0 );
 450             break;
 451         case HSHELL_ACTIVATESHELLWINDOW:
 452             PostMessageA( SHELL_hWnd, uMsgShellActivate, wParam, 0 );
 453             break;
 454         }
 455     }
 456     return CallNextHookEx( SHELL_hHook, code, wParam, lParam );
 457 }
 458
 459 /*************************************************************************
 460  *                              ShellHookProc           [SHELL.103]
 461  * System-wide WH_SHELL hook.
 462  */
 463 LRESULT WINAPI ShellHookProc16(INT16 code, WPARAM16 wParam, LPARAM lParam)
 464 {
 465     return SHELL_HookProc( code, wParam, lParam );
 466 }
 467
 468 /*************************************************************************
 469  *                              RegisterShellHook       [SHELL.102]
 470  */
 471 BOOL WINAPI RegisterShellHook16(HWND16 hWnd, UINT16 uAction)
 472 {
 473     TRACE("%04x [%u]\n", hWnd, uAction );
 474
 475     switch( uAction )
 476     {
 477     case 2:  /* register hWnd as a shell window */
 478         if( !SHELL_hHook )
 479         {
 480             SHELL_hHook = SetWindowsHookExA( WH_SHELL, SHELL_HookProc,
 481                                              GetModuleHandleA("shell32.dll"), 0 );
 482             if ( SHELL_hHook )
 483             {
 484                 uMsgWndCreated = RegisterWindowMessageA( lpstrMsgWndCreated );
 485                 uMsgWndDestroyed = RegisterWindowMessageA( lpstrMsgWndDestroyed );
 486                 uMsgShellActivate = RegisterWindowMessageA( lpstrMsgShellActivate );
 487             }
 488             else
 489                 WARN("-- unable to install ShellHookProc()!\n");
 490         }
 491
 492         if ( SHELL_hHook )
 493             return ((SHELL_hWnd = HWND_32(hWnd)) != 0);
 494         break;
 495
 496     default:
 497         WARN("-- unknown code %i\n", uAction );
 498         SHELL_hWnd = 0; /* just in case */
 499     }
 500     return FALSE;
 501 }
 502
 503
 504 /***********************************************************************
 505  *           DriveType   (SHELL.262)
 506  */
 507 UINT16 WINAPI DriveType16( UINT16 drive )
 508 {
 509     UINT ret;
 510     char path[] = "A:\\";
 511     path[0] += drive;
 512     ret = GetDriveTypeA(path);
 513     switch(ret)  /* some values are not supported in Win16 */
 514     {
 515     case DRIVE_CDROM:
 516         ret = DRIVE_REMOTE;
 517         break;
 518     case DRIVE_NO_ROOT_DIR:
 519         ret = DRIVE_UNKNOWN;
 520         break;
 521     }
 522     return ret;
 523 }
 524
 525
 526 /* 0 and 1 are valid rootkeys in win16 shell.dll and are used by
 527  * some programs. Do not remove those cases. -MM
 528  */
 529 static inline void fix_win16_hkey( HKEY *hkey )
 530 {
 531     if (*hkey == 0 || *hkey == (HKEY)1) *hkey = HKEY_CLASSES_ROOT;
 532 }
 533
 534 /******************************************************************************
 535  *           RegOpenKey   [SHELL.1]
 536  */
 537 DWORD WINAPI RegOpenKey16( HKEY hkey, LPCSTR name, PHKEY retkey )
 538 {
 539     fix_win16_hkey( &hkey );
 540     return RegOpenKeyA( hkey, name, retkey );
 541 }
 542
 543 /******************************************************************************
 544  *           RegCreateKey   [SHELL.2]
 545  */
 546 DWORD WINAPI RegCreateKey16( HKEY hkey, LPCSTR name, PHKEY retkey )
 547 {
 548     fix_win16_hkey( &hkey );
 549     return RegCreateKeyA( hkey, name, retkey );
 550 }
 551
 552 /******************************************************************************
 553  *           RegCloseKey   [SHELL.3]
 554  */
 555 DWORD WINAPI RegCloseKey16( HKEY hkey )
 556 {
 557     fix_win16_hkey( &hkey );
 558     return RegCloseKey( hkey );
 559 }
 560
 561 /******************************************************************************
 562  *           RegDeleteKey   [SHELL.4]
 563  */
 564 DWORD WINAPI RegDeleteKey16( HKEY hkey, LPCSTR name )
 565 {
 566     fix_win16_hkey( &hkey );
 567     return RegDeleteKeyA( hkey, name );
 568 }
 569
 570 /******************************************************************************
 571  *           RegSetValue   [SHELL.5]
 572  */
 573 DWORD WINAPI RegSetValue16( HKEY hkey, LPCSTR name, DWORD type, LPCSTR data, DWORD count )
 574 {
 575     fix_win16_hkey( &hkey );
 576     return RegSetValueA( hkey, name, type, data, count );
 577 }
 578
 579 /******************************************************************************
 580  *           RegQueryValue   [SHELL.6]
 581  *
 582  * NOTES
 583  *    Is this HACK still applicable?
 584  *
 585  * HACK
 586  *    The 16bit RegQueryValue doesn't handle selectorblocks anyway, so we just
 587  *    mask out the high 16 bit.  This (not so much incidently) hopefully fixes
 588  *    Aldus FH4)
 589  */
 590 DWORD WINAPI RegQueryValue16( HKEY hkey, LPCSTR name, LPSTR data, LPDWORD count
 591 )
 592 {
 593     fix_win16_hkey( &hkey );
 594     if (count) *count &= 0xffff;
 595     return RegQueryValueA( hkey, name, data, count );
 596 }
 597
 598 /******************************************************************************
 599  *           RegEnumKey   [SHELL.7]
 600  */
 601 DWORD WINAPI RegEnumKey16( HKEY hkey, DWORD index, LPSTR name, DWORD name_len )
 602 {
 603     fix_win16_hkey( &hkey );
 604     return RegEnumKeyA( hkey, index, name, name_len );
 605 }
 606
 607 /*************************************************************************
 608  *           SHELL_Execute16 [Internal]
 609  */
 610 static UINT SHELL_Execute16(char *lpCmd, LPSHELLEXECUTEINFOA sei, BOOL shWait)
 611 {
 612     UINT ret = WinExec16(lpCmd, sei->nShow);
 613     sei->hInstApp = HINSTANCE_32(ret);
 614     return ret;
 615 }
 616
 617 /*************************************************************************
 618  *                              ShellExecute            [SHELL.20]
 619  */
 620 HINSTANCE16 WINAPI ShellExecute16( HWND16 hWnd, LPCSTR lpOperation,
 621                                    LPCSTR lpFile, LPCSTR lpParameters,
 622                                    LPCSTR lpDirectory, INT16 iShowCmd )
 623 {
 624     SHELLEXECUTEINFOA sei;
 625     HANDLE hProcess = 0;
 626
 627     sei.cbSize = sizeof(sei);
 628     sei.fMask = 0;
 629     sei.hwnd = HWND_32(hWnd);
 630     sei.lpVerb = lpOperation;
 631     sei.lpFile = lpFile;
 632     sei.lpParameters = lpParameters;
 633     sei.lpDirectory = lpDirectory;
 634     sei.nShow = iShowCmd;
 635     sei.lpIDList = 0;
 636     sei.lpClass = 0;
 637     sei.hkeyClass = 0;
 638     sei.dwHotKey = 0;
 639     sei.hProcess = hProcess;
 640
 641     ShellExecuteExA32 (&sei, SHELL_Execute16);
 642     return HINSTANCE_16(sei.hInstApp);
 643 }