git.oblomov.eu Git - wine/blob - dlls/shell32/shell.c

   1 /*
   2  *                              Shell Library Functions
   3  *
   4  * Copyright 1998 Marcus Meissner
   5  * Copyright 2002 Eric Pouech
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #ifdef HAVE_UNISTD_H
  28 # include <unistd.h>
  29 #endif
  30 #include <ctype.h>
  31
  32 #include "windef.h"
  33 #include "winerror.h"
  34 #include "winreg.h"
  35 #include "dlgs.h"
  36 #include "shellapi.h"
  37 #include "shlobj.h"
  38 #include "shlwapi.h"
  39 #include "ddeml.h"
  40
  41 #include "wine/winbase16.h"
  42 #include "wine/winuser16.h"
  43 #include "shell32_main.h"
  44
  45 #include "wine/debug.h"
  46
  47 WINE_DEFAULT_DEBUG_CHANNEL(shell);
  48 WINE_DECLARE_DEBUG_CHANNEL(exec);
  49
  50
  51 typedef struct {     /* structure for dropped files */
  52  WORD     wSize;
  53  POINT16  ptMousePos;
  54  BOOL16   fInNonClientArea;
  55  /* memory block with filenames follows */
  56 } DROPFILESTRUCT16, *LPDROPFILESTRUCT16;
  57
  58 static const char*      lpstrMsgWndCreated = "OTHERWINDOWCREATED";
  59 static const char*      lpstrMsgWndDestroyed = "OTHERWINDOWDESTROYED";
  60 static const char*      lpstrMsgShellActivate = "ACTIVATESHELLWINDOW";
  61
  62 static HWND16   SHELL_hWnd = 0;
  63 static HHOOK    SHELL_hHook = 0;
  64 static UINT16   uMsgWndCreated = 0;
  65 static UINT16   uMsgWndDestroyed = 0;
  66 static UINT16   uMsgShellActivate = 0;
  67 HINSTANCE16     SHELL_hInstance = 0;
  68 HINSTANCE SHELL_hInstance32;
  69 static int SHELL_Attach = 0;
  70
  71 /***********************************************************************
  72  * DllEntryPoint [SHELL.101]
  73  *
  74  * Initialization code for shell.dll. Automatically loads the
  75  * 32-bit shell32.dll to allow thunking up to 32-bit code.
  76  *
  77  * RETURNS:
  78  */
  79 BOOL WINAPI SHELL_DllEntryPoint(DWORD Reason, HINSTANCE16 hInst,
  80                                 WORD ds, WORD HeapSize, DWORD res1, WORD res2)
  81 {
  82     TRACE("(%08lx, %04x, %04x, %04x, %08lx, %04x)\n",
  83           Reason, hInst, ds, HeapSize, res1, res2);
  84
  85     switch(Reason)
  86     {
  87     case DLL_PROCESS_ATTACH:
  88         if (SHELL_Attach++) break;
  89         SHELL_hInstance = hInst;
  90         if(!SHELL_hInstance32)
  91         {
  92             if(!(SHELL_hInstance32 = LoadLibraryA("shell32.dll")))
  93             {
  94                 ERR("Could not load sibling shell32.dll\n");
  95                 return FALSE;
  96             }
  97         }
  98         break;
  99
 100     case DLL_PROCESS_DETACH:
 101         if(!--SHELL_Attach)
 102         {
 103             SHELL_hInstance = 0;
 104             if(SHELL_hInstance32)
 105                 FreeLibrary(SHELL_hInstance32);
 106         }
 107         break;
 108     }
 109     return TRUE;
 110 }
 111
 112 /*************************************************************************
 113  *                              DragAcceptFiles         [SHELL.9]
 114  */
 115 void WINAPI DragAcceptFiles16(HWND16 hWnd, BOOL16 b)
 116 {
 117   DragAcceptFiles(HWND_32(hWnd), b);
 118 }
 119
 120 /*************************************************************************
 121  *                              DragQueryFile           [SHELL.11]
 122  */
 123 UINT16 WINAPI DragQueryFile16(
 124         HDROP16 hDrop,
 125         WORD wFile,
 126         LPSTR lpszFile,
 127         WORD wLength)
 128 {
 129         LPSTR lpDrop;
 130         UINT i = 0;
 131         LPDROPFILESTRUCT16 lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
 132
 133         TRACE("(%04x, %x, %p, %u)\n", hDrop,wFile,lpszFile,wLength);
 134
 135         if(!lpDropFileStruct) goto end;
 136
 137         lpDrop = (LPSTR) lpDropFileStruct + lpDropFileStruct->wSize;
 138         wFile = (wFile==0xffff) ? 0xffffffff : wFile;
 139
 140         while (i++ < wFile)
 141         {
 142           while (*lpDrop++); /* skip filename */
 143           if (!*lpDrop)
 144           {
 145             i = (wFile == 0xFFFFFFFF) ? i : 0;
 146             goto end;
 147           }
 148         }
 149
 150         i = strlen(lpDrop);
 151         i++;
 152         if (!lpszFile ) goto end;   /* needed buffer size */
 153         i = (wLength > i) ? i : wLength;
 154         lstrcpynA (lpszFile,  lpDrop,  i);
 155 end:
 156         GlobalUnlock16(hDrop);
 157         return i;
 158 }
 159
 160 /*************************************************************************
 161  *                              DragFinish              [SHELL.12]
 162  */
 163 void WINAPI DragFinish16(HDROP16 h)
 164 {
 165     TRACE("\n");
 166     GlobalFree16((HGLOBAL16)h);
 167 }
 168
 169
 170 /*************************************************************************
 171  *                              DragQueryPoint          [SHELL.13]
 172  */
 173 BOOL16 WINAPI DragQueryPoint16(HDROP16 hDrop, POINT16 *p)
 174 {
 175   LPDROPFILESTRUCT16 lpDropFileStruct;
 176   BOOL16           bRet;
 177   TRACE("\n");
 178   lpDropFileStruct = (LPDROPFILESTRUCT16) GlobalLock16(hDrop);
 179
 180   memcpy(p,&lpDropFileStruct->ptMousePos,sizeof(POINT16));
 181   bRet = lpDropFileStruct->fInNonClientArea;
 182
 183   GlobalUnlock16(hDrop);
 184   return bRet;
 185 }
 186
 187 /*************************************************************************
 188  *             FindExecutable   (SHELL.21)
 189  */
 190 HINSTANCE16 WINAPI FindExecutable16( LPCSTR lpFile, LPCSTR lpDirectory,
 191                                      LPSTR lpResult )
 192 { return (HINSTANCE16)FindExecutableA( lpFile, lpDirectory, lpResult );
 193 }
 194
 195
 196 /*************************************************************************
 197  *             AboutDlgProc   (SHELL.33)
 198  */
 199 BOOL16 WINAPI AboutDlgProc16( HWND16 hWnd, UINT16 msg, WPARAM16 wParam,
 200                                LPARAM lParam )
 201 { return AboutDlgProc( HWND_32(hWnd), msg, wParam, lParam );
 202 }
 203
 204
 205 /*************************************************************************
 206  *             ShellAbout   (SHELL.22)
 207  */
 208 BOOL16 WINAPI ShellAbout16( HWND16 hWnd, LPCSTR szApp, LPCSTR szOtherStuff,
 209                             HICON16 hIcon )
 210 { return ShellAboutA( HWND_32(hWnd), szApp, szOtherStuff, hIcon );
 211 }
 212
 213 /*************************************************************************
 214  *                      InternalExtractIcon             [SHELL.39]
 215  *
 216  * This abortion is called directly by Progman
 217  */
 218 HGLOBAL16 WINAPI InternalExtractIcon16(HINSTANCE16 hInstance,
 219                                      LPCSTR lpszExeFileName, UINT16 nIconIndex, WORD n )
 220 {
 221     HGLOBAL16 hRet = 0;
 222     HICON16 *RetPtr = NULL;
 223     OFSTRUCT ofs;
 224     HFILE hFile;
 225
 226         TRACE("(%04x,file %s,start %d,extract %d\n",
 227                        hInstance, lpszExeFileName, nIconIndex, n);
 228
 229         if( !n )
 230           return 0;
 231
 232         hFile = OpenFile( lpszExeFileName, &ofs, OF_READ|OF_EXIST );
 233
 234         hRet = GlobalAlloc16( GMEM_FIXED | GMEM_ZEROINIT, sizeof(HICON16)*n);
 235         RetPtr = (HICON16*)GlobalLock16(hRet);
 236
 237         if (hFile == HFILE_ERROR)
 238         { /* not found - load from builtin module if available */
 239           HINSTANCE hInst = (HINSTANCE)LoadLibrary16(lpszExeFileName);
 240
 241           if (hInst < 32) /* hmm, no Win16 module - try Win32 :-) */
 242             hInst = LoadLibraryA(lpszExeFileName);
 243           if (hInst)
 244           {
 245             int i;
 246             for (i=nIconIndex; i < nIconIndex + n; i++)
 247               RetPtr[i-nIconIndex] =
 248                       (HICON16)LoadIconA(hInst, (LPCSTR)(DWORD)i);
 249             FreeLibrary(hInst);
 250             return hRet;
 251           }
 252           GlobalFree16( hRet );
 253           return 0;
 254         }
 255
 256         if (nIconIndex == (UINT16)-1)  /* get number of icons */
 257         {
 258             RetPtr[0] = PrivateExtractIconsA( ofs.szPathName, -1, 0, 0, NULL, 0, 0, 0 );
 259         }
 260         else
 261         {
 262             HRESULT res;
 263             HICON *icons;
 264             icons = HeapAlloc( GetProcessHeap(), 0, n * sizeof(*icons) );
 265             res = PrivateExtractIconsA( ofs.szPathName, nIconIndex,
 266                                         GetSystemMetrics(SM_CXICON),
 267                                         GetSystemMetrics(SM_CYICON),
 268                                         icons, 0, n, 0 );
 269             if (!res)
 270             {
 271                 int i;
 272                 for (i = 0; i < n; i++) RetPtr[i] = (HICON16)icons[i];
 273             }
 274             else
 275             {
 276                 GlobalFree16( hRet );
 277                 hRet = 0;
 278             }
 279             HeapFree( GetProcessHeap(), 0, icons );
 280         }
 281         return hRet;
 282 }
 283
 284 /*************************************************************************
 285  *             ExtractIcon   (SHELL.34)
 286  */
 287 HICON16 WINAPI ExtractIcon16( HINSTANCE16 hInstance, LPCSTR lpszExeFileName,
 288         UINT16 nIconIndex )
 289 {   TRACE("\n");
 290     return ExtractIconA( hInstance, lpszExeFileName, nIconIndex );
 291 }
 292
 293 /*************************************************************************
 294  *             ExtractIconEx   (SHELL.40)
 295  */
 296 HICON16 WINAPI ExtractIconEx16(
 297         LPCSTR lpszFile, INT16 nIconIndex, HICON16 *phiconLarge,
 298         HICON16 *phiconSmall, UINT16 nIcons
 299 ) {
 300     HICON       *ilarge,*ismall;
 301     UINT16      ret;
 302     int         i;
 303
 304     if (phiconLarge)
 305         ilarge = (HICON*)HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
 306     else
 307         ilarge = NULL;
 308     if (phiconSmall)
 309         ismall = (HICON*)HeapAlloc(GetProcessHeap(),0,nIcons*sizeof(HICON));
 310     else
 311         ismall = NULL;
 312     ret = ExtractIconExA(lpszFile,nIconIndex,ilarge,ismall,nIcons);
 313     if (ilarge) {
 314         for (i=0;i<nIcons;i++)
 315             phiconLarge[i]=ilarge[i];
 316         HeapFree(GetProcessHeap(),0,ilarge);
 317     }
 318     if (ismall) {
 319         for (i=0;i<nIcons;i++)
 320             phiconSmall[i]=ismall[i];
 321         HeapFree(GetProcessHeap(),0,ismall);
 322     }
 323     return ret;
 324 }
 325
 326 /*************************************************************************
 327  *                              ExtractAssociatedIcon   [SHELL.36]
 328  *
 329  * Return icon for given file (either from file itself or from associated
 330  * executable) and patch parameters if needed.
 331  */
 332 HICON16 WINAPI ExtractAssociatedIcon16(HINSTANCE16 hInst, LPSTR lpIconPath, LPWORD lpiIcon)
 333 {       HICON16 hIcon;
 334         WORD wDummyIcon = 0;
 335
 336         TRACE("\n");
 337
 338         if(lpiIcon == NULL)
 339             lpiIcon = &wDummyIcon;
 340
 341         hIcon = ExtractIcon16(hInst, lpIconPath, *lpiIcon);
 342
 343         if( hIcon < 2 )
 344         { if( hIcon == 1 ) /* no icons found in given file */
 345           { char  tempPath[0x80];
 346             UINT16  uRet = FindExecutable16(lpIconPath,NULL,tempPath);
 347
 348             if( uRet > 32 && tempPath[0] )
 349             { strcpy(lpIconPath,tempPath);
 350               hIcon = ExtractIcon16(hInst, lpIconPath, *lpiIcon);
 351               if( hIcon > 2 )
 352                 return hIcon;
 353             }
 354             else hIcon = 0;
 355           }
 356
 357           if( hIcon == 1 )
 358             *lpiIcon = 2;   /* MSDOS icon - we found .exe but no icons in it */
 359           else
 360             *lpiIcon = 6;   /* generic icon - found nothing */
 361
 362           GetModuleFileName16(hInst, lpIconPath, 0x80);
 363           hIcon = LoadIconA( hInst, MAKEINTRESOURCEA(*lpiIcon));
 364         }
 365         return hIcon;
 366 }
 367
 368 /*************************************************************************
 369  *                              FindEnvironmentString   [SHELL.38]
 370  *
 371  * Returns a pointer into the DOS environment... Ugh.
 372  */
 373 LPSTR SHELL_FindString(LPSTR lpEnv, LPCSTR entry)
 374 { UINT16 l;
 375
 376   TRACE("\n");
 377
 378   l = strlen(entry);
 379   for( ; *lpEnv ; lpEnv+=strlen(lpEnv)+1 )
 380   { if( strncasecmp(lpEnv, entry, l) )
 381       continue;
 382         if( !*(lpEnv+l) )
 383             return (lpEnv + l);                 /* empty entry */
 384         else if ( *(lpEnv+l)== '=' )
 385             return (lpEnv + l + 1);
 386     }
 387     return NULL;
 388 }
 389
 390 /**********************************************************************/
 391
 392 SEGPTR WINAPI FindEnvironmentString16(LPSTR str)
 393 { SEGPTR  spEnv;
 394   LPSTR lpEnv,lpString;
 395   TRACE("\n");
 396
 397   spEnv = GetDOSEnvironment16();
 398
 399   lpEnv = MapSL(spEnv);
 400   lpString = (spEnv)?SHELL_FindString(lpEnv, str):NULL;
 401
 402     if( lpString )              /*  offset should be small enough */
 403         return spEnv + (lpString - lpEnv);
 404     return (SEGPTR)NULL;
 405 }
 406
 407 /*************************************************************************
 408  *                              DoEnvironmentSubst      [SHELL.37]
 409  *
 410  * Replace %KEYWORD% in the str with the value of variable KEYWORD
 411  * from "DOS" environment.
 412  */
 413 DWORD WINAPI DoEnvironmentSubst16(LPSTR str,WORD length)
 414 {
 415   LPSTR   lpEnv = MapSL(GetDOSEnvironment16());
 416   LPSTR   lpBuffer = (LPSTR)HeapAlloc( GetProcessHeap(), 0, length);
 417   LPSTR   lpstr = str;
 418   LPSTR   lpbstr = lpBuffer;
 419
 420   CharToOemA(str,str);
 421
 422   TRACE("accept %s\n", str);
 423
 424   while( *lpstr && lpbstr - lpBuffer < length )
 425    {
 426      LPSTR lpend = lpstr;
 427
 428      if( *lpstr == '%' )
 429        {
 430           do { lpend++; } while( *lpend && *lpend != '%' );
 431           if( *lpend == '%' && lpend - lpstr > 1 )      /* found key */
 432             {
 433                LPSTR lpKey;
 434               *lpend = '\0';
 435                lpKey = SHELL_FindString(lpEnv, lpstr+1);
 436                if( lpKey )                              /* found key value */
 437                  {
 438                    int l = strlen(lpKey);
 439
 440                    if( l > length - (lpbstr - lpBuffer) - 1 )
 441                      {
 442            WARN("-- Env subst aborted - string too short\n");
 443                       *lpend = '%';
 444                        break;
 445                      }
 446                    strcpy(lpbstr, lpKey);
 447                    lpbstr += l;
 448                  }
 449                else break;
 450               *lpend = '%';
 451                lpstr = lpend + 1;
 452             }
 453           else break;                                   /* back off and whine */
 454
 455           continue;
 456        }
 457
 458      *lpbstr++ = *lpstr++;
 459    }
 460
 461  *lpbstr = '\0';
 462   if( lpstr - str == strlen(str) )
 463     {
 464       strncpy(str, lpBuffer, length);
 465       length = 1;
 466     }
 467   else
 468       length = 0;
 469
 470   TRACE("-- return %s\n", str);
 471
 472   OemToCharA(str,str);
 473   HeapFree( GetProcessHeap(), 0, lpBuffer);
 474
 475   /*  Return str length in the LOWORD
 476    *  and 1 in HIWORD if subst was successful.
 477    */
 478  return (DWORD)MAKELONG(strlen(str), length);
 479 }
 480
 481 /*************************************************************************
 482  *                              ShellHookProc           [SHELL.103]
 483  * System-wide WH_SHELL hook.
 484  */
 485 LRESULT WINAPI ShellHookProc16(INT16 code, WPARAM16 wParam, LPARAM lParam)
 486 {
 487     TRACE("%i, %04x, %08x\n", code, wParam,
 488                                                       (unsigned)lParam );
 489     if( SHELL_hHook && SHELL_hWnd )
 490     {
 491         UINT16  uMsg = 0;
 492         switch( code )
 493         {
 494             case HSHELL_WINDOWCREATED:          uMsg = uMsgWndCreated;   break;
 495             case HSHELL_WINDOWDESTROYED:        uMsg = uMsgWndDestroyed; break;
 496             case HSHELL_ACTIVATESHELLWINDOW:    uMsg = uMsgShellActivate;
 497         }
 498         PostMessageA( HWND_32(SHELL_hWnd), uMsg, wParam, 0 );
 499     }
 500     return CallNextHookEx16( SHELL_hHook, code, wParam, lParam );
 501 }
 502
 503 /*************************************************************************
 504  *                              RegisterShellHook       [SHELL.102]
 505  */
 506 BOOL WINAPI RegisterShellHook16(HWND16 hWnd, UINT16 uAction)
 507 {
 508     TRACE("%04x [%u]\n", hWnd, uAction );
 509
 510     switch( uAction )
 511     {
 512     case 2:  /* register hWnd as a shell window */
 513         if( !SHELL_hHook )
 514         {
 515             HMODULE16 hShell = GetModuleHandle16( "SHELL" );
 516             HOOKPROC16 hookProc = (HOOKPROC16)GetProcAddress16( hShell, (LPCSTR)103 );
 517             SHELL_hHook = SetWindowsHookEx16( WH_SHELL, hookProc, hShell, 0 );
 518             if ( SHELL_hHook )
 519             {
 520                 uMsgWndCreated = RegisterWindowMessageA( lpstrMsgWndCreated );
 521                 uMsgWndDestroyed = RegisterWindowMessageA( lpstrMsgWndDestroyed );
 522                 uMsgShellActivate = RegisterWindowMessageA( lpstrMsgShellActivate );
 523             }
 524             else
 525                 WARN("-- unable to install ShellHookProc()!\n");
 526         }
 527
 528         if ( SHELL_hHook )
 529             return ((SHELL_hWnd = hWnd) != 0);
 530         break;
 531
 532     default:
 533         WARN("-- unknown code %i\n", uAction );
 534         SHELL_hWnd = 0; /* just in case */
 535     }
 536     return FALSE;
 537 }
 538
 539
 540 /***********************************************************************
 541  *           DriveType   (SHELL.262)
 542  */
 543 UINT16 WINAPI DriveType16( UINT16 drive )
 544 {
 545     UINT ret;
 546     char path[] = "A:\\";
 547     path[0] += drive;
 548     ret = GetDriveTypeA(path);
 549     switch(ret)  /* some values are not supported in Win16 */
 550     {
 551     case DRIVE_CDROM:
 552         ret = DRIVE_REMOTE;
 553         break;
 554     case DRIVE_NO_ROOT_DIR:
 555         ret = DRIVE_UNKNOWN;
 556         break;
 557     }
 558     return ret;
 559 }