misc/clipboard.c

   1 /*
   2  * 'Wine' Clipboard function handling
   3  *
   4  * Copyright 1994 Martin Ayotte
   5  *           1996 Alex Korobka
   6  *
   7  */
   8
   9 #include <stdlib.h>
  10 #include <stdio.h>
  11 #include <sys/types.h>
  12 #include <sys/stat.h>
  13 #include <fcntl.h>
  14 #include <unistd.h>
  15 #include <string.h>
  16 #include <X11/Xlib.h>
  17 #include <X11/Xatom.h>
  18 #include "windows.h"
  19 #include "win.h"
  20 #include "heap.h"
  21 #include "message.h"
  22 #include "clipboard.h"
  23 #include "xmalloc.h"
  24 #include "stddebug.h"
  25 #include "debug.h"
  26
  27 #define  CF_REGFORMATBASE       0xC000
  28
  29 typedef struct tagCLIPFORMAT {
  30     WORD        wFormatID;
  31     WORD        wRefCount;
  32     WORD        wDataPresent;
  33     LPSTR       Name;
  34     HANDLE16    hData;
  35     DWORD       BufSize;
  36     struct tagCLIPFORMAT *PrevFormat;
  37     struct tagCLIPFORMAT *NextFormat;
  38 } CLIPFORMAT, *LPCLIPFORMAT;
  39
  40 /* *************************************************************************
  41  *                      internal variables
  42  */
  43
  44 static HWND32 hWndClipOwner  = 0;   /* current clipboard owner */
  45 static HWND32 hWndClipWindow = 0;   /* window that opened clipboard */
  46 static HWND32 hWndViewer     = 0;   /* start of viewers chain */
  47
  48 static BOOL bClipChanged  = FALSE;
  49 static WORD LastRegFormat = CF_REGFORMATBASE;
  50
  51 static Bool   selectionWait = False;
  52 static Bool   selectionAcquired = False;
  53 static Window selectionWindow = None;
  54 static Window selectionPrevWindow = None;
  55
  56 static CLIPFORMAT ClipFormats[16]  = {
  57     { CF_TEXT, 1, 0, "Text", (HANDLE16)NULL, 0, NULL, &ClipFormats[1] },
  58     { CF_BITMAP, 1, 0, "Bitmap", (HANDLE16)NULL, 0, &ClipFormats[0], &ClipFormats[2] },
  59     { CF_METAFILEPICT, 1, 0, "MetaFile Picture", (HANDLE16)NULL, 0, &ClipFormats[1], &ClipFormats[3] },
  60     { CF_SYLK, 1, 0, "Sylk", (HANDLE16)NULL, 0, &ClipFormats[2], &ClipFormats[4] },
  61     { CF_DIF, 1, 0, "DIF", (HANDLE16)NULL, 0, &ClipFormats[3], &ClipFormats[5] },
  62     { CF_TIFF, 1, 0, "TIFF", (HANDLE16)NULL, 0, &ClipFormats[4], &ClipFormats[6] },
  63     { CF_OEMTEXT, 1, 0, "OEM Text", (HANDLE16)NULL, 0, &ClipFormats[5], &ClipFormats[7] },
  64     { CF_DIB, 1, 0, "DIB", (HANDLE16)NULL, 0, &ClipFormats[6], &ClipFormats[8] },
  65     { CF_PALETTE, 1, 0, "Palette", (HANDLE16)NULL, 0, &ClipFormats[7], &ClipFormats[9] },
  66     { CF_PENDATA, 1, 0, "PenData", (HANDLE16)NULL, 0, &ClipFormats[8], &ClipFormats[10] },
  67     { CF_RIFF, 1, 0, "RIFF", (HANDLE16)NULL, 0, &ClipFormats[9], &ClipFormats[11] },
  68     { CF_WAVE, 1, 0, "Wave", (HANDLE16)NULL, 0, &ClipFormats[10], &ClipFormats[12] },
  69     { CF_OWNERDISPLAY, 1, 0, "Owner Display", (HANDLE16)NULL, 0, &ClipFormats[11], &ClipFormats[13] },
  70     { CF_DSPTEXT, 1, 0, "DSPText", (HANDLE16)NULL, 0, &ClipFormats[12], &ClipFormats[14] },
  71     { CF_DSPMETAFILEPICT, 1, 0, "DSPMetaFile Picture", (HANDLE16)NULL, 0, &ClipFormats[13], &ClipFormats[15] },
  72     { CF_DSPBITMAP, 1, 0, "DSPBitmap", (HANDLE16)NULL, 0, &ClipFormats[14], NULL }
  73     };
  74
  75 /**************************************************************************
  76  *                      CLIPBOARD_CheckSelection
  77  */
  78 void CLIPBOARD_CheckSelection(WND* pWnd)
  79 {
  80   dprintf_clipboard(stddeb,"\tchecking %08x\n", (unsigned)pWnd->window);
  81
  82   if( selectionAcquired && selectionWindow != None &&
  83       pWnd->window == selectionWindow )
  84   {
  85     selectionPrevWindow = selectionWindow;
  86     selectionWindow = None;
  87
  88     if( pWnd->next )
  89          selectionWindow = pWnd->next->window;
  90     else if( pWnd->parent )
  91              if( pWnd->parent->child != pWnd )
  92                  selectionWindow = pWnd->parent->child->window;
  93
  94     dprintf_clipboard(stddeb,"\tswitching selection from %08x to %08x\n",
  95                     (unsigned)selectionPrevWindow, (unsigned)selectionWindow);
  96
  97     if( selectionWindow != None )
  98     {
  99         XSetSelectionOwner(display, XA_PRIMARY, selectionWindow, CurrentTime);
 100         if( XGetSelectionOwner(display, XA_PRIMARY) != selectionWindow )
 101             selectionWindow = None;
 102     }
 103   }
 104 }
 105
 106 /**************************************************************************
 107  *                      CLIPBOARD_DisOwn
 108  *
 109  * Called from DestroyWindow().
 110  */
 111 void CLIPBOARD_DisOwn(WND* pWnd)
 112 {
 113   LPCLIPFORMAT lpFormat = ClipFormats;
 114
 115   dprintf_clipboard(stddeb,"DisOwn: clipboard owner = %04x, sw = %08x\n",
 116                                 hWndClipOwner, (unsigned)selectionWindow);
 117
 118   if( pWnd->hwndSelf == hWndClipOwner)
 119   {
 120     SendMessage16(hWndClipOwner,WM_RENDERALLFORMATS,0,0L);
 121
 122     /* check if all formats were rendered */
 123
 124     while(lpFormat)
 125     {
 126        if( lpFormat->wDataPresent && !lpFormat->hData )
 127          {
 128            dprintf_clipboard(stddeb,"\tdata missing for clipboard format %i\n", lpFormat->wFormatID);
 129            lpFormat->wDataPresent = 0;
 130          }
 131        lpFormat = lpFormat->NextFormat;
 132     }
 133     hWndClipOwner = 0;
 134   }
 135
 136   /* now try to salvage current selection from being destroyed by X */
 137
 138   CLIPBOARD_CheckSelection(pWnd);
 139 }
 140
 141 /**************************************************************************
 142  *                      CLIPBOARD_DeleteRecord
 143  */
 144 void CLIPBOARD_DeleteRecord(LPCLIPFORMAT lpFormat)
 145 {
 146   if( lpFormat->wFormatID >= CF_GDIOBJFIRST &&
 147       lpFormat->wFormatID <= CF_GDIOBJLAST )
 148       DeleteObject32(lpFormat->hData);
 149   else if( lpFormat->hData )
 150            GlobalFree16(lpFormat->hData);
 151
 152   lpFormat->wDataPresent = 0;
 153   lpFormat->hData = 0;
 154
 155   bClipChanged = TRUE;
 156 }
 157
 158 /**************************************************************************
 159  *                      CLIPBOARD_RequestXSelection
 160  */
 161 BOOL CLIPBOARD_RequestXSelection()
 162 {
 163   HWND32 hWnd = (hWndClipWindow) ? hWndClipWindow : GetActiveWindow32();
 164
 165   if( !hWnd ) return FALSE;
 166
 167   dprintf_clipboard(stddeb,"Requesting selection...\n");
 168
 169   /* request data type XA_STRING, later
 170    * CLIPBOARD_ReadSelection() will be invoked
 171    * from the SelectionNotify event handler */
 172
 173   XConvertSelection(display,XA_PRIMARY,XA_STRING,
 174                     XInternAtom(display,"PRIMARY_TEXT",False),
 175                     WIN_GetXWindow(hWnd),CurrentTime);
 176
 177   /* wait until SelectionNotify is processed */
 178
 179   selectionWait=True;
 180   while(selectionWait)
 181         EVENT_WaitXEvent( TRUE, FALSE );
 182
 183   /* we treat Unix text as CF_OEMTEXT */
 184   dprintf_clipboard(stddeb,"\tgot CF_OEMTEXT = %i\n",
 185                     ClipFormats[CF_OEMTEXT-1].wDataPresent);
 186
 187   return (BOOL)ClipFormats[CF_OEMTEXT-1].wDataPresent;
 188 }
 189
 190 /**************************************************************************
 191  *                      CLIPBOARD_IsPresent
 192  */
 193 BOOL CLIPBOARD_IsPresent(WORD wFormat)
 194 {
 195     LPCLIPFORMAT lpFormat = ClipFormats;
 196
 197     /* special case */
 198
 199     if( wFormat == CF_TEXT || wFormat == CF_OEMTEXT )
 200         return lpFormat[CF_TEXT-1].wDataPresent ||
 201                lpFormat[CF_OEMTEXT-1].wDataPresent;
 202
 203     while(TRUE) {
 204         if (lpFormat == NULL) return FALSE;
 205         if (lpFormat->wFormatID == wFormat) break;
 206         lpFormat = lpFormat->NextFormat;
 207         }
 208
 209     return (lpFormat->wDataPresent);
 210 }
 211
 212 /**************************************************************************
 213  *            OpenClipboard16   (USER.137)
 214  */
 215 BOOL16 OpenClipboard16( HWND16 hWnd )
 216 {
 217     return OpenClipboard32( hWnd );
 218 }
 219
 220
 221 /**************************************************************************
 222  *            OpenClipboard32   (USER32.406)
 223  */
 224 BOOL32 OpenClipboard32( HWND32 hWnd )
 225 {
 226     BOOL32 bRet = FALSE;
 227     dprintf_clipboard(stddeb,"OpenClipboard(%04x) = ", hWnd);
 228
 229     if (!hWndClipWindow)
 230        {
 231          hWndClipWindow = hWnd;
 232          bRet = TRUE;
 233        }
 234     bClipChanged = FALSE;
 235
 236     dprintf_clipboard(stddeb,"%i\n", bRet);
 237     return bRet;
 238 }
 239
 240
 241 /**************************************************************************
 242  *            CloseClipboard16   (USER.138)
 243  */
 244 BOOL16 CloseClipboard16(void)
 245 {
 246     return CloseClipboard32();
 247 }
 248
 249
 250 /**************************************************************************
 251  *            CloseClipboard32   (USER32.53)
 252  */
 253 BOOL32 CloseClipboard32(void)
 254 {
 255     dprintf_clipboard(stddeb,"CloseClipboard(); !\n");
 256
 257     if (hWndClipWindow == 0) return FALSE;
 258     hWndClipWindow = 0;
 259
 260     if (bClipChanged && hWndViewer) SendMessage16(hWndViewer,WM_DRAWCLIPBOARD,0,0L);
 261
 262     return TRUE;
 263 }
 264
 265
 266 /**************************************************************************
 267  *            EmptyClipboard16   (USER.139)
 268  */
 269 BOOL16 EmptyClipboard16(void)
 270 {
 271     return EmptyClipboard32();
 272 }
 273
 274
 275 /**************************************************************************
 276  *            EmptyClipboard32   (USER32.168)
 277  */
 278 BOOL32 EmptyClipboard32(void)
 279 {
 280     LPCLIPFORMAT lpFormat = ClipFormats;
 281
 282     dprintf_clipboard(stddeb,"EmptyClipboard()\n");
 283
 284     if (hWndClipWindow == 0) return FALSE;
 285
 286     /* destroy private objects */
 287
 288     if (hWndClipOwner)
 289         SendMessage16(hWndClipOwner,WM_DESTROYCLIPBOARD,0,0L);
 290
 291     while(lpFormat)
 292       {
 293         if ( lpFormat->wDataPresent || lpFormat->hData )
 294              CLIPBOARD_DeleteRecord( lpFormat );
 295
 296         lpFormat = lpFormat->NextFormat;
 297       }
 298
 299     hWndClipOwner = hWndClipWindow;
 300
 301     if(selectionAcquired)
 302     {
 303         selectionAcquired       = False;
 304         selectionPrevWindow     = selectionWindow;
 305         selectionWindow         = None;
 306
 307         dprintf_clipboard(stddeb, "\tgiving up selection (spw = %08x)\n",
 308                                         (unsigned)selectionPrevWindow);
 309
 310         XSetSelectionOwner(display,XA_PRIMARY,None,CurrentTime);
 311     }
 312     return TRUE;
 313 }
 314
 315
 316 /**************************************************************************
 317  *            GetClipboardOwner16   (USER.140)
 318  */
 319 HWND16 GetClipboardOwner16(void)
 320 {
 321     return hWndClipOwner;
 322 }
 323
 324
 325 /**************************************************************************
 326  *            GetClipboardOwner32   (USER32.224)
 327  */
 328 HWND32 GetClipboardOwner32(void)
 329 {
 330     return hWndClipOwner;
 331 }
 332
 333
 334 /**************************************************************************
 335  *                      SetClipboardData        [USER.141]
 336  */
 337 HANDLE16 SetClipboardData(WORD wFormat, HANDLE16 hData)
 338 {
 339     LPCLIPFORMAT lpFormat = ClipFormats;
 340     Window       owner;
 341
 342     dprintf_clipboard(stddeb,
 343                 "SetClipboardData(%04X, %04x) !\n", wFormat, hData);
 344
 345     while(TRUE)
 346       {
 347         if (lpFormat == NULL) return 0;
 348         if (lpFormat->wFormatID == wFormat) break;
 349         lpFormat = lpFormat->NextFormat;
 350       }
 351
 352     /* Acquire X selection if text format */
 353
 354     if( !selectionAcquired &&
 355         (wFormat == CF_TEXT || wFormat == CF_OEMTEXT) )
 356     {
 357       owner = WIN_GetXWindow(hWndClipWindow);
 358       XSetSelectionOwner(display,XA_PRIMARY,owner,CurrentTime);
 359       if( XGetSelectionOwner(display,XA_PRIMARY) == owner )
 360       {
 361         selectionAcquired = True;
 362         selectionWindow = owner;
 363
 364         dprintf_clipboard(stddeb,"Grabbed X selection, owner=(%08x)\n",
 365                                                 (unsigned) owner);
 366       }
 367     }
 368
 369     if ( lpFormat->wDataPresent || lpFormat->hData )
 370     {
 371         CLIPBOARD_DeleteRecord(lpFormat);
 372
 373         /* delete existing CF_TEXT/CF_OEMTEXT aliases */
 374
 375         if( wFormat == CF_TEXT && ClipFormats[CF_OEMTEXT-1].hData
 376             && !ClipFormats[CF_OEMTEXT-1].wDataPresent )
 377             CLIPBOARD_DeleteRecord(&ClipFormats[CF_OEMTEXT-1]);
 378         if( wFormat == CF_OEMTEXT && ClipFormats[CF_TEXT-1].hData
 379             && !ClipFormats[CF_TEXT-1].wDataPresent )
 380             CLIPBOARD_DeleteRecord(&ClipFormats[CF_TEXT-1]);
 381     }
 382
 383     bClipChanged = TRUE;
 384     lpFormat->wDataPresent = 1;
 385     lpFormat->hData = hData;          /* 0 is legal, see WM_RENDERFORMAT */
 386
 387     return lpFormat->hData;
 388 }
 389
 390 /**************************************************************************
 391  *                      CLIPBOARD_RenderFormat
 392  */
 393 BOOL32 CLIPBOARD_RenderFormat(LPCLIPFORMAT lpFormat)
 394 {
 395  if( lpFormat->wDataPresent && !lpFormat->hData )
 396    if( IsWindow(hWndClipOwner) )
 397        SendMessage16(hWndClipOwner,WM_RENDERFORMAT,
 398                      (WPARAM16)lpFormat->wFormatID,0L);
 399    else
 400    {
 401        dprintf_clipboard(stddeb,"\thWndClipOwner (%04x) is lost!\n",
 402                                       hWndClipOwner);
 403        hWndClipOwner = 0; lpFormat->wDataPresent = 0;
 404        return FALSE;
 405    }
 406  return (lpFormat->hData) ? TRUE : FALSE;
 407 }
 408
 409 /**************************************************************************
 410  *                      CLIPBOARD_RenderText
 411  */
 412 BOOL32 CLIPBOARD_RenderText(LPCLIPFORMAT lpTarget, LPCLIPFORMAT lpSource)
 413 {
 414   UINT          size = GlobalSize16( lpSource->hData );
 415   LPCSTR        lpstrS = (LPSTR)GlobalLock16(lpSource->hData);
 416   LPSTR         lpstrT;
 417
 418   if( !lpstrS ) return FALSE;
 419   dprintf_clipboard(stddeb,"\tconverting from '%s' to '%s', %i chars\n",
 420                                       lpSource->Name, lpTarget->Name, size);
 421
 422   lpTarget->hData = GlobalAlloc16(GMEM_ZEROINIT, size);
 423   lpstrT = (LPSTR)GlobalLock16(lpTarget->hData);
 424
 425   if( lpstrT )
 426   {
 427     if( lpSource->wFormatID == CF_TEXT )
 428         CharToOemBuff32A(lpstrS, lpstrT, size);
 429     else
 430         OemToCharBuff32A(lpstrS, lpstrT, size);
 431     dprintf_clipboard(stddeb,"\tgot %s\n", lpstrT);
 432     return TRUE;
 433   }
 434
 435   lpTarget->hData = 0;
 436   return FALSE;
 437 }
 438
 439 /**************************************************************************
 440  *                      GetClipboardData        [USER.142]
 441  */
 442 HANDLE16 GetClipboardData(WORD wFormat)
 443 {
 444     LPCLIPFORMAT lpRender = ClipFormats;
 445     LPCLIPFORMAT lpUpdate = NULL;
 446
 447     if (!hWndClipWindow) return 0;
 448
 449     dprintf_clipboard(stddeb,"GetClipboardData(%04X)\n", wFormat);
 450
 451     if( wFormat == CF_TEXT && !lpRender[CF_TEXT-1].wDataPresent
 452                            &&  lpRender[CF_OEMTEXT-1].wDataPresent )
 453     {
 454         lpRender = &ClipFormats[CF_OEMTEXT-1];
 455         lpUpdate = &ClipFormats[CF_TEXT-1];
 456
 457         dprintf_clipboard(stddeb,"\tOEMTEXT -> TEXT\n");
 458     }
 459     else if( wFormat == CF_OEMTEXT && !lpRender[CF_OEMTEXT-1].wDataPresent
 460                                    &&  lpRender[CF_TEXT-1].wDataPresent )
 461     {
 462         lpRender = &ClipFormats[CF_TEXT-1];
 463         lpUpdate = &ClipFormats[CF_OEMTEXT-1];
 464
 465         dprintf_clipboard(stddeb,"\tTEXT -> OEMTEXT\n");
 466     }
 467     else
 468     {
 469       while(TRUE)
 470       {
 471         if (lpRender == NULL) return 0;
 472         if (lpRender->wFormatID == wFormat) break;
 473         lpRender = lpRender->NextFormat;
 474       }
 475       lpUpdate = lpRender;
 476     }
 477
 478     if( !CLIPBOARD_RenderFormat(lpRender) ) return 0;
 479     if( lpUpdate != lpRender &&
 480         !lpUpdate->hData ) CLIPBOARD_RenderText(lpUpdate, lpRender);
 481
 482     dprintf_clipboard(stddeb,"\treturning %04x (type %i)\n",
 483                               lpUpdate->hData, lpUpdate->wFormatID);
 484     return lpUpdate->hData;
 485 }
 486
 487
 488 /**************************************************************************
 489  *           CountClipboardFormats16   (USER.143)
 490  */
 491 INT16 CountClipboardFormats16(void)
 492 {
 493     return CountClipboardFormats32();
 494 }
 495
 496
 497 /**************************************************************************
 498  *           CountClipboardFormats32   (USER32.62)
 499  */
 500 INT32 CountClipboardFormats32(void)
 501 {
 502     INT32 FormatCount = 0;
 503     LPCLIPFORMAT lpFormat = ClipFormats;
 504
 505     dprintf_clipboard(stddeb,"CountClipboardFormats()\n");
 506
 507     if( !selectionAcquired ) CLIPBOARD_RequestXSelection();
 508
 509     FormatCount += abs(lpFormat[CF_TEXT-1].wDataPresent -
 510                        lpFormat[CF_OEMTEXT-1].wDataPresent);
 511
 512     while(TRUE) {
 513         if (lpFormat == NULL) break;
 514         if (lpFormat->wDataPresent)
 515             {
 516                dprintf_clipboard(stddeb, "\tdata found for format %i\n", lpFormat->wFormatID);
 517
 518                FormatCount++;
 519             }
 520         lpFormat = lpFormat->NextFormat;
 521         }
 522
 523     dprintf_clipboard(stddeb,"\ttotal %d\n", FormatCount);
 524     return FormatCount;
 525 }
 526
 527
 528 /**************************************************************************
 529  *            EnumClipboardFormats16   (USER.144)
 530  */
 531 UINT16 EnumClipboardFormats16( UINT16 wFormat )
 532 {
 533     return EnumClipboardFormats32( wFormat );
 534 }
 535
 536
 537 /**************************************************************************
 538  *            EnumClipboardFormats32   (USER32.178)
 539  */
 540 UINT32 EnumClipboardFormats32( UINT32 wFormat )
 541 {
 542     LPCLIPFORMAT lpFormat = ClipFormats;
 543
 544     dprintf_clipboard(stddeb,"EnumClipboardFormats(%04X)\n", wFormat);
 545
 546     if( !hWndClipWindow ) return 0;
 547
 548     if( (!wFormat || wFormat == CF_TEXT || wFormat == CF_OEMTEXT)
 549          && !selectionAcquired) CLIPBOARD_RequestXSelection();
 550
 551     if (wFormat == 0)
 552         if (lpFormat->wDataPresent || ClipFormats[CF_OEMTEXT-1].wDataPresent)
 553             return lpFormat->wFormatID;
 554         else
 555             wFormat = lpFormat->wFormatID; /* and CF_TEXT is not available */
 556
 557     /* walk up to the specified format record */
 558
 559     while(TRUE) {
 560         if (lpFormat == NULL) return 0;
 561         if (lpFormat->wFormatID == wFormat) break;
 562         lpFormat = lpFormat->NextFormat;
 563         }
 564
 565     /* find next format with available data */
 566
 567     lpFormat = lpFormat->NextFormat;
 568     while(TRUE) {
 569         if (lpFormat == NULL) return 0;
 570         if (lpFormat->wDataPresent ||
 571                (lpFormat->wFormatID == CF_OEMTEXT &&
 572                 ClipFormats[CF_TEXT-1].wDataPresent)) break;
 573         lpFormat = lpFormat->NextFormat;
 574         }
 575
 576     return lpFormat->wFormatID;
 577 }
 578
 579
 580 /**************************************************************************
 581  *            RegisterClipboardFormat16  (USER.145)
 582  */
 583 UINT16 RegisterClipboardFormat16( LPCSTR FormatName )
 584 {
 585     LPCLIPFORMAT lpNewFormat;
 586     LPCLIPFORMAT lpFormat = ClipFormats;
 587
 588     if (FormatName == NULL) return 0;
 589
 590     dprintf_clipboard(stddeb,"RegisterClipboardFormat('%s') !\n", FormatName);
 591
 592     /* walk format chain to see if it's already registered */
 593
 594     while(TRUE) {
 595         if ( !strcmp(lpFormat->Name,FormatName) )
 596            {
 597              lpFormat->wRefCount++;
 598              return lpFormat->wFormatID;
 599            }
 600
 601         if ( lpFormat->NextFormat == NULL ) break;
 602
 603         lpFormat = lpFormat->NextFormat;
 604         }
 605
 606     /* allocate storage for new format entry */
 607
 608     lpNewFormat = (LPCLIPFORMAT)xmalloc(sizeof(CLIPFORMAT));
 609     lpFormat->NextFormat = lpNewFormat;
 610     lpNewFormat->wFormatID = LastRegFormat;
 611     lpNewFormat->wRefCount = 1;
 612
 613     lpNewFormat->Name = (LPSTR)xmalloc(strlen(FormatName) + 1);
 614     strcpy(lpNewFormat->Name, FormatName);
 615
 616     lpNewFormat->wDataPresent = 0;
 617     lpNewFormat->hData = 0;
 618     lpNewFormat->BufSize = 0;
 619     lpNewFormat->PrevFormat = lpFormat;
 620     lpNewFormat->NextFormat = NULL;
 621
 622     return LastRegFormat++;
 623 }
 624
 625
 626 /**************************************************************************
 627  *            RegisterClipboardFormat32A   (USER32.430)
 628  */
 629 UINT32 RegisterClipboardFormat32A( LPCSTR formatName )
 630 {
 631     return RegisterClipboardFormat16( formatName );
 632 }
 633
 634
 635 /**************************************************************************
 636  *            RegisterClipboardFormat32W   (USER32.431)
 637  */
 638 UINT32 RegisterClipboardFormat32W( LPCWSTR formatName )
 639 {
 640     LPSTR aFormat = HEAP_strdupWtoA( GetProcessHeap(), 0, formatName );
 641     UINT32 ret = RegisterClipboardFormat32A( aFormat );
 642     HeapFree( GetProcessHeap(), 0, aFormat );
 643     return ret;
 644 }
 645
 646 /**************************************************************************
 647  *                      GetClipboardFormatName  [USER.146]
 648  */
 649 int GetClipboardFormatName(WORD wFormat, LPSTR retStr, short maxlen)
 650 {
 651     LPCLIPFORMAT lpFormat = ClipFormats;
 652
 653     dprintf_clipboard(stddeb,
 654         "GetClipboardFormat(%04X, %p, %d) !\n", wFormat, retStr, maxlen);
 655
 656     while(TRUE) {
 657         if (lpFormat == NULL) return 0;
 658         if (lpFormat->wFormatID == wFormat) break;
 659         lpFormat = lpFormat->NextFormat;
 660         }
 661
 662     if (lpFormat->Name == NULL ||
 663         lpFormat->wFormatID < CF_REGFORMATBASE) return 0;
 664
 665     dprintf_clipboard(stddeb,
 666                 "GetClipboardFormat // Name='%s' !\n", lpFormat->Name);
 667
 668     strncpy(retStr, lpFormat->Name, maxlen - 1);
 669     retStr[maxlen] = 0;
 670
 671     return strlen(retStr);
 672 }
 673
 674
 675 /**************************************************************************
 676  *            SetClipboardViewer16   (USER.147)
 677  */
 678 HWND16 SetClipboardViewer16( HWND16 hWnd )
 679 {
 680     return SetClipboardViewer32( hWnd );
 681 }
 682
 683
 684 /**************************************************************************
 685  *            SetClipboardViewer32   (USER32.470)
 686  */
 687 HWND32 SetClipboardViewer32( HWND32 hWnd )
 688 {
 689     HWND32 hwndPrev = hWndViewer;
 690
 691     dprintf_clipboard(stddeb,"SetClipboardViewer(%04x)\n", hWnd);
 692
 693     hWndViewer = hWnd;
 694     return hwndPrev;
 695 }
 696
 697
 698 /**************************************************************************
 699  *           GetClipboardViewer16   (USER.148)
 700  */
 701 HWND16 GetClipboardViewer16(void)
 702 {
 703     return hWndViewer;
 704 }
 705
 706
 707 /**************************************************************************
 708  *           GetClipboardViewer32   (USER32.225)
 709  */
 710 HWND32 GetClipboardViewer32(void)
 711 {
 712     return hWndViewer;
 713 }
 714
 715
 716 /**************************************************************************
 717  *                      ChangeClipboardChain    [USER.149]
 718  */
 719 BOOL16 ChangeClipboardChain16(HWND16 hWnd, HWND16 hWndNext)
 720 {
 721     return ChangeClipboardChain32(hWnd,hWndNext);
 722 }
 723
 724 /**************************************************************************
 725  *                      ChangeClipboardChain    [USER32.21]
 726  */
 727 BOOL32 ChangeClipboardChain32(HWND32 hWnd, HWND32 hWndNext)
 728 {
 729     BOOL32 bRet = 0;
 730
 731     dprintf_clipboard(stdnimp, "ChangeClipboardChain(%04x, %04x)\n", hWnd, hWndNext);
 732
 733     if( hWndViewer )
 734       bRet = !SendMessage16( hWndViewer, WM_CHANGECBCHAIN,
 735                              (WPARAM16)hWnd, (LPARAM)hWndNext);
 736     else
 737       dprintf_clipboard(stddeb,"ChangeClipboardChain: hWndViewer is lost\n");
 738
 739     if( hWnd == hWndViewer ) hWndViewer = hWndNext;
 740
 741     return bRet;
 742 }
 743
 744
 745
 746 /**************************************************************************
 747  *           IsClipboardFormatAvailable16   (USER.193)
 748  */
 749 BOOL16 IsClipboardFormatAvailable16( UINT16 wFormat )
 750 {
 751     return IsClipboardFormatAvailable32( wFormat );
 752 }
 753
 754
 755 /**************************************************************************
 756  *           IsClipboardFormatAvailable32   (USER32.339)
 757  */
 758 BOOL32 IsClipboardFormatAvailable32( UINT32 wFormat )
 759 {
 760     dprintf_clipboard(stddeb,"IsClipboardFormatAvailable(%04X) !\n", wFormat);
 761
 762     if( (wFormat == CF_TEXT || wFormat == CF_OEMTEXT) &&
 763         !selectionAcquired ) CLIPBOARD_RequestXSelection();
 764
 765     return CLIPBOARD_IsPresent(wFormat);
 766 }
 767
 768
 769 /**************************************************************************
 770  *             GetOpenClipboardWindow16   (USER.248)
 771  */
 772 HWND16 GetOpenClipboardWindow16(void)
 773 {
 774     return hWndClipWindow;
 775 }
 776
 777
 778 /**************************************************************************
 779  *             GetOpenClipboardWindow32   (USER32.276)
 780  */
 781 HWND32 GetOpenClipboardWindow32(void)
 782 {
 783     return hWndClipWindow;
 784 }
 785
 786
 787 /**************************************************************************
 788  *                      GetPriorityClipboardFormat      [USER.402]
 789  */
 790 int GetPriorityClipboardFormat(WORD *lpPriorityList, short nCount)
 791 {
 792     dprintf_clipboard(stdnimp,
 793         "GetPriorityClipboardFormat(%p, %d) !\n", lpPriorityList, nCount);
 794
 795     return 0;
 796 }
 797
 798
 799 /**************************************************************************
 800  *                      CLIPBOARD_ReadSelection
 801  *
 802  * Called from the SelectionNotify event handler.
 803  */
 804 void CLIPBOARD_ReadSelection(Window w,Atom prop)
 805 {
 806     HANDLE16     hText = 0;
 807     LPCLIPFORMAT lpFormat = ClipFormats;
 808
 809     dprintf_clipboard(stddeb,"ReadSelection callback\n");
 810
 811     if(prop != None)
 812     {
 813         Atom            atype=AnyPropertyType;
 814         int             aformat;
 815         unsigned long   nitems,remain;
 816         unsigned char*  val=NULL;
 817
 818         dprintf_clipboard(stddeb,"\tgot property %s\n",XGetAtomName(display,prop));
 819
 820         /* TODO: Properties longer than 64K */
 821
 822         if(XGetWindowProperty(display,w,prop,0,0x3FFF,True,XA_STRING,
 823             &atype, &aformat, &nitems, &remain, &val) != Success)
 824             dprintf_clipboard(stddeb,"\tcouldn't read property\n");
 825         else
 826         {
 827            dprintf_clipboard(stddeb,"\tType %s,Format %d,nitems %ld,value %s\n",
 828                              XGetAtomName(display,atype),aformat,nitems,val);
 829
 830            if(atype == XA_STRING && aformat == 8)
 831            {
 832               int       i,inlcount = 0;
 833               char*     lpstr;
 834
 835               dprintf_clipboard(stddeb,"\tselection is '%s'\n",val);
 836
 837               for(i=0; i <= nitems; i++)
 838                   if( val[i] == '\n' ) inlcount++;
 839
 840               if( nitems )
 841               {
 842                 hText=GlobalAlloc16(GMEM_MOVEABLE, nitems + inlcount + 1);
 843                 if( (lpstr = (char*)GlobalLock16(hText)) )
 844                   for(i=0,inlcount=0; i <= nitems; i++)
 845                   {
 846                      if( val[i] == '\n' ) lpstr[inlcount++]='\r';
 847                      lpstr[inlcount++]=val[i];
 848                   }
 849                 else hText = 0;
 850               }
 851            }
 852            XFree(val);
 853         }
 854    }
 855
 856    /* delete previous CF_TEXT and CF_OEMTEXT data */
 857
 858    if( hText )
 859    {
 860      lpFormat = &ClipFormats[CF_TEXT-1];
 861      if (lpFormat->wDataPresent || lpFormat->hData)
 862          CLIPBOARD_DeleteRecord(lpFormat);
 863      lpFormat = &ClipFormats[CF_OEMTEXT-1];
 864      if (lpFormat->wDataPresent || lpFormat->hData)
 865          CLIPBOARD_DeleteRecord(lpFormat);
 866
 867      lpFormat->wDataPresent = 1;
 868      lpFormat->hData = hText;
 869    }
 870
 871    selectionWait=False;
 872 }
 873
 874 /**************************************************************************
 875  *                      CLIPBOARD_ReleaseSelection
 876  *
 877  * Wine might have lost XA_PRIMARY selection because of
 878  * EmptyClipboard() or other client.
 879  */
 880 void CLIPBOARD_ReleaseSelection(Window w, HWND32 hwnd)
 881 {
 882   /* w is the window that lost selection,
 883    *
 884    * selectionPrevWindow is nonzero if CheckSelection() was called.
 885    */
 886
 887   dprintf_clipboard(stddeb,"\tevent->window = %08x (sw = %08x, spw=%08x)\n",
 888           (unsigned)w, (unsigned)selectionWindow, (unsigned)selectionPrevWindow );
 889
 890   if( selectionAcquired )
 891     if( w == selectionWindow || selectionPrevWindow == None)
 892     {
 893       /* alright, we really lost it */
 894
 895       selectionAcquired = False;
 896       selectionWindow = None;
 897
 898       /* but we'll keep existing data for internal use */
 899     }
 900     else if( w == selectionPrevWindow )
 901     {
 902       w =  XGetSelectionOwner(display, XA_PRIMARY);
 903
 904       if( w == None )
 905         XSetSelectionOwner(display, XA_PRIMARY, selectionWindow, CurrentTime);
 906     }
 907
 908   selectionPrevWindow = None;
 909 }
 910