windows/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 "ts_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 "debug.h"
  25
  26 #define  CF_REGFORMATBASE       0xC000
  27
  28 typedef struct tagCLIPFORMAT {
  29     WORD        wFormatID;
  30     WORD        wRefCount;
  31     WORD        wDataPresent;
  32     LPSTR       Name;
  33     HANDLE16    hData;
  34     DWORD       BufSize;
  35     struct tagCLIPFORMAT *PrevFormat;
  36     struct tagCLIPFORMAT *NextFormat;
  37 } CLIPFORMAT, *LPCLIPFORMAT;
  38
  39 /* *************************************************************************
  40  *                      internal variables
  41  */
  42
  43 static HQUEUE16 hqClipLock   = 0;
  44 static BOOL32 bCBHasChanged  = FALSE;
  45
  46 static HWND32 hWndClipOwner  = 0;   /* current clipboard owner */
  47 static HWND32 hWndClipWindow = 0;   /* window that opened clipboard */
  48 static HWND32 hWndViewer     = 0;   /* start of viewers chain */
  49
  50 static WORD LastRegFormat = CF_REGFORMATBASE;
  51
  52 static Bool   selectionWait = False;
  53 static Bool   selectionAcquired = False;
  54 static Window selectionWindow = None;
  55 static Window selectionPrevWindow = None;
  56
  57 static CLIPFORMAT ClipFormats[16]  = {
  58     { CF_TEXT, 1, 0, "Text", (HANDLE16)NULL, 0, NULL, &ClipFormats[1] },
  59     { CF_BITMAP, 1, 0, "Bitmap", (HANDLE16)NULL, 0, &ClipFormats[0], &ClipFormats[2] },
  60     { CF_METAFILEPICT, 1, 0, "MetaFile Picture", (HANDLE16)NULL, 0, &ClipFormats[1], &ClipFormats[3] },
  61     { CF_SYLK, 1, 0, "Sylk", (HANDLE16)NULL, 0, &ClipFormats[2], &ClipFormats[4] },
  62     { CF_DIF, 1, 0, "DIF", (HANDLE16)NULL, 0, &ClipFormats[3], &ClipFormats[5] },
  63     { CF_TIFF, 1, 0, "TIFF", (HANDLE16)NULL, 0, &ClipFormats[4], &ClipFormats[6] },
  64     { CF_OEMTEXT, 1, 0, "OEM Text", (HANDLE16)NULL, 0, &ClipFormats[5], &ClipFormats[7] },
  65     { CF_DIB, 1, 0, "DIB", (HANDLE16)NULL, 0, &ClipFormats[6], &ClipFormats[8] },
  66     { CF_PALETTE, 1, 0, "Palette", (HANDLE16)NULL, 0, &ClipFormats[7], &ClipFormats[9] },
  67     { CF_PENDATA, 1, 0, "PenData", (HANDLE16)NULL, 0, &ClipFormats[8], &ClipFormats[10] },
  68     { CF_RIFF, 1, 0, "RIFF", (HANDLE16)NULL, 0, &ClipFormats[9], &ClipFormats[11] },
  69     { CF_WAVE, 1, 0, "Wave", (HANDLE16)NULL, 0, &ClipFormats[10], &ClipFormats[12] },
  70     { CF_OWNERDISPLAY, 1, 0, "Owner Display", (HANDLE16)NULL, 0, &ClipFormats[11], &ClipFormats[13] },
  71     { CF_DSPTEXT, 1, 0, "DSPText", (HANDLE16)NULL, 0, &ClipFormats[12], &ClipFormats[14] },
  72     { CF_DSPMETAFILEPICT, 1, 0, "DSPMetaFile Picture", (HANDLE16)NULL, 0, &ClipFormats[13], &ClipFormats[15] },
  73     { CF_DSPBITMAP, 1, 0, "DSPBitmap", (HANDLE16)NULL, 0, &ClipFormats[14], NULL }
  74     };
  75
  76 static LPCLIPFORMAT __lookup_format( LPCLIPFORMAT lpFormat, WORD wID )
  77 {
  78     while(TRUE)
  79     {
  80         if (lpFormat == NULL ||
  81             lpFormat->wFormatID == wID) break;
  82         lpFormat = lpFormat->NextFormat;
  83     }
  84     return lpFormat;
  85 }
  86
  87 /**************************************************************************
  88  *                      CLIPBOARD_CheckSelection
  89  *
  90  * Prevent X selection from being lost when a top level window is
  91  * destroyed.
  92  */
  93 static void CLIPBOARD_CheckSelection(WND* pWnd)
  94 {
  95     TRACE(clipboard,"\tchecking %08x\n", (unsigned)pWnd->window);
  96
  97     if( selectionAcquired && selectionWindow != None &&
  98         pWnd->window == selectionWindow )
  99     {
 100         selectionPrevWindow = selectionWindow;
 101         selectionWindow = None;
 102
 103         if( pWnd->next )
 104             selectionWindow = pWnd->next->window;
 105         else if( pWnd->parent )
 106              if( pWnd->parent->child != pWnd )
 107                  selectionWindow = pWnd->parent->child->window;
 108
 109         TRACE(clipboard,"\tswitching selection from %08x to %08x\n",
 110                     (unsigned)selectionPrevWindow, (unsigned)selectionWindow);
 111
 112         if( selectionWindow != None )
 113         {
 114             TSXSetSelectionOwner(display, XA_PRIMARY, selectionWindow, CurrentTime);
 115             if( TSXGetSelectionOwner(display, XA_PRIMARY) != selectionWindow )
 116                 selectionWindow = None;
 117         }
 118     }
 119 }
 120
 121 /**************************************************************************
 122  *                      CLIPBOARD_ResetLock
 123  */
 124 void CLIPBOARD_ResetLock( HQUEUE16 hqCurrent, HQUEUE16 hqNew )
 125 {
 126     if( hqClipLock == hqCurrent )
 127     {
 128         if( hqNew )
 129             hqClipLock = hqNew;
 130         else
 131         {
 132             hWndClipOwner = 0;
 133             hWndClipWindow = 0;
 134             EmptyClipboard32();
 135             hqClipLock = 0;
 136         }
 137     }
 138 }
 139
 140 /**************************************************************************
 141  *                      CLIPBOARD_ResetOwner
 142  *
 143  * Called from DestroyWindow().
 144  */
 145 void CLIPBOARD_ResetOwner(WND* pWnd)
 146 {
 147     LPCLIPFORMAT lpFormat = ClipFormats;
 148
 149     TRACE(clipboard,"clipboard owner = %04x, selection = %08x\n",
 150                                 hWndClipOwner, (unsigned)selectionWindow);
 151
 152     if( pWnd->hwndSelf == hWndClipOwner)
 153     {
 154         SendMessage16(hWndClipOwner,WM_RENDERALLFORMATS,0,0L);
 155
 156         /* check if all formats were rendered */
 157
 158         while(lpFormat)
 159         {
 160             if( lpFormat->wDataPresent && !lpFormat->hData )
 161             {
 162                 TRACE(clipboard,"\tdata missing for clipboard format %i\n",
 163                                    lpFormat->wFormatID);
 164                 lpFormat->wDataPresent = 0;
 165             }
 166             lpFormat = lpFormat->NextFormat;
 167         }
 168         hWndClipOwner = 0;
 169     }
 170
 171     /* now try to salvage current selection from being destroyed by X */
 172
 173     if( pWnd->window ) CLIPBOARD_CheckSelection(pWnd);
 174 }
 175
 176 /**************************************************************************
 177  *                      CLIPBOARD_DeleteRecord
 178  */
 179 static void CLIPBOARD_DeleteRecord(LPCLIPFORMAT lpFormat, BOOL32 bChange)
 180 {
 181     if( (lpFormat->wFormatID >= CF_GDIOBJFIRST &&
 182          lpFormat->wFormatID <= CF_GDIOBJLAST) || lpFormat->wFormatID == CF_BITMAP )
 183         DeleteObject32(lpFormat->hData);
 184     else if( lpFormat->wFormatID == CF_METAFILEPICT && lpFormat->hData )
 185     {
 186         DeleteMetaFile16( ((METAFILEPICT16 *)GlobalLock16( lpFormat->hData ))->hMF );
 187         GlobalFree16(lpFormat->hData);
 188     }
 189     else if( lpFormat->hData )
 190         GlobalFree16(lpFormat->hData);
 191
 192     lpFormat->wDataPresent = 0;
 193     lpFormat->hData = 0;
 194
 195     if( bChange ) bCBHasChanged = TRUE;
 196 }
 197
 198 /**************************************************************************
 199  *                      CLIPBOARD_RequestXSelection
 200  */
 201 static BOOL32 CLIPBOARD_RequestXSelection()
 202 {
 203     HWND32 hWnd = (hWndClipWindow) ? hWndClipWindow : GetActiveWindow32();
 204
 205     if( !hWnd ) return FALSE;
 206
 207     TRACE(clipboard,"Requesting selection...\n");
 208
 209   /* request data type XA_STRING, later
 210    * CLIPBOARD_ReadSelection() will be invoked
 211    * from the SelectionNotify event handler */
 212
 213     TSXConvertSelection(display,XA_PRIMARY,XA_STRING,
 214                       TSXInternAtom(display,"PRIMARY_TEXT",False),
 215                       WIN_GetXWindow(hWnd),CurrentTime);
 216
 217   /* wait until SelectionNotify is processed
 218    *
 219    * FIXME: Use TSXCheckTypedWindowEvent() instead ( same in the
 220    *        CLIPBOARD_CheckSelection() ).
 221    */
 222
 223     selectionWait=True;
 224     while(selectionWait) EVENT_WaitNetEvent( TRUE, FALSE );
 225
 226   /* we treat Unix text as CF_OEMTEXT */
 227     TRACE(clipboard,"\tgot CF_OEMTEXT = %i\n",
 228                       ClipFormats[CF_OEMTEXT-1].wDataPresent);
 229
 230     return (BOOL32)ClipFormats[CF_OEMTEXT-1].wDataPresent;
 231 }
 232
 233 /**************************************************************************
 234  *                      CLIPBOARD_IsPresent
 235  */
 236 BOOL32 CLIPBOARD_IsPresent(WORD wFormat)
 237 {
 238     /* special case */
 239
 240     if( wFormat == CF_TEXT || wFormat == CF_OEMTEXT )
 241         return ClipFormats[CF_TEXT-1].wDataPresent ||
 242                ClipFormats[CF_OEMTEXT-1].wDataPresent;
 243     else
 244     {
 245         LPCLIPFORMAT lpFormat = __lookup_format( ClipFormats, wFormat );
 246         if( lpFormat ) return (lpFormat->wDataPresent);
 247     }
 248     return FALSE;
 249 }
 250
 251 /**************************************************************************
 252  *            OpenClipboard16   (USER.137)
 253  */
 254 BOOL16 WINAPI OpenClipboard16( HWND16 hWnd )
 255 {
 256     return OpenClipboard32( hWnd );
 257 }
 258
 259
 260 /**************************************************************************
 261  *            OpenClipboard32   (USER32.407)
 262  *
 263  * Note: Netscape uses NULL hWnd to open the clipboard.
 264  */
 265 BOOL32 WINAPI OpenClipboard32( HWND32 hWnd )
 266 {
 267     BOOL32 bRet;
 268
 269     TRACE(clipboard,"(%04x)...\n", hWnd);
 270
 271     if (!hqClipLock)
 272     {
 273          hqClipLock = GetTaskQueue(0);
 274          hWndClipWindow = hWnd;
 275          bCBHasChanged = FALSE;
 276          bRet = TRUE;
 277     }
 278     else bRet = FALSE;
 279
 280     TRACE(clipboard,"   returning %i\n", bRet);
 281     return bRet;
 282 }
 283
 284
 285 /**************************************************************************
 286  *            CloseClipboard16   (USER.138)
 287  */
 288 BOOL16 WINAPI CloseClipboard16(void)
 289 {
 290     return CloseClipboard32();
 291 }
 292
 293
 294 /**************************************************************************
 295  *            CloseClipboard32   (USER32.54)
 296  */
 297 BOOL32 WINAPI CloseClipboard32(void)
 298 {
 299     TRACE(clipboard,"!\n");
 300
 301     if (hqClipLock == GetTaskQueue(0))
 302     {
 303         hWndClipWindow = 0;
 304
 305         if (bCBHasChanged && hWndViewer)
 306             SendMessage16(hWndViewer, WM_DRAWCLIPBOARD, 0, 0L);
 307         hqClipLock = 0;
 308     }
 309     return TRUE;
 310 }
 311
 312
 313 /**************************************************************************
 314  *            EmptyClipboard16   (USER.139)
 315  */
 316 BOOL16 WINAPI EmptyClipboard16(void)
 317 {
 318     return EmptyClipboard32();
 319 }
 320
 321
 322 /**************************************************************************
 323  *            EmptyClipboard32   (USER32.169)
 324  */
 325 BOOL32 WINAPI EmptyClipboard32(void)
 326 {
 327     LPCLIPFORMAT lpFormat = ClipFormats;
 328
 329     TRACE(clipboard,"(void)\n");
 330
 331     if (hqClipLock != GetTaskQueue(0)) return FALSE;
 332
 333     /* destroy private objects */
 334
 335     if (hWndClipOwner)
 336         SendMessage16(hWndClipOwner, WM_DESTROYCLIPBOARD, 0, 0L);
 337
 338     while(lpFormat)
 339     {
 340         if ( lpFormat->wDataPresent || lpFormat->hData )
 341              CLIPBOARD_DeleteRecord( lpFormat, TRUE );
 342
 343         lpFormat = lpFormat->NextFormat;
 344     }
 345
 346     hWndClipOwner = hWndClipWindow;
 347
 348     if(selectionAcquired)
 349     {
 350         selectionAcquired       = False;
 351         selectionPrevWindow     = selectionWindow;
 352         selectionWindow         = None;
 353
 354         TRACE(clipboard, "\tgiving up selection (spw = %08x)\n",
 355                                         (unsigned)selectionPrevWindow);
 356
 357         TSXSetSelectionOwner(display, XA_PRIMARY, None, CurrentTime);
 358     }
 359     return TRUE;
 360 }
 361
 362
 363 /**************************************************************************
 364  *            GetClipboardOwner16   (USER.140)
 365  */
 366 HWND16 WINAPI GetClipboardOwner16(void)
 367 {
 368     return hWndClipOwner;
 369 }
 370
 371
 372 /**************************************************************************
 373  *            GetClipboardOwner32   (USER32.225)
 374  */
 375 HWND32 WINAPI GetClipboardOwner32(void)
 376 {
 377     return hWndClipOwner;
 378 }
 379
 380
 381 /**************************************************************************
 382  *            SetClipboardData16   (USER.141)
 383  */
 384 HANDLE16 WINAPI SetClipboardData16( UINT16 wFormat, HANDLE16 hData )
 385 {
 386     LPCLIPFORMAT lpFormat = __lookup_format( ClipFormats, wFormat );
 387     Window       owner;
 388
 389     TRACE(clipboard, "(%04X, %04x) !\n", wFormat, hData);
 390
 391     /* NOTE: If the hData is zero and current owner doesn't match
 392      * the window that opened the clipboard then this application
 393      * is screwed because WM_RENDERFORMAT will go to the owner
 394      * (to become the owner it must call EmptyClipboard() before
 395      *  adding new data).
 396      */
 397
 398     if( (hqClipLock != GetTaskQueue(0)) || !lpFormat ||
 399         (!hData && (!hWndClipOwner || (hWndClipOwner != hWndClipWindow))) ) return 0;
 400
 401     /* Acquire X selection if text format */
 402
 403     if( !selectionAcquired &&
 404         (wFormat == CF_TEXT || wFormat == CF_OEMTEXT) )
 405     {
 406         owner = WIN_GetXWindow( hWndClipWindow ? hWndClipWindow : AnyPopup32() );
 407         TSXSetSelectionOwner(display,XA_PRIMARY,owner,CurrentTime);
 408         if( TSXGetSelectionOwner(display,XA_PRIMARY) == owner )
 409         {
 410             selectionAcquired = True;
 411             selectionWindow = owner;
 412
 413             TRACE(clipboard,"Grabbed X selection, owner=(%08x)\n",
 414                                                 (unsigned) owner);
 415         }
 416     }
 417
 418     if ( lpFormat->wDataPresent || lpFormat->hData )
 419     {
 420         CLIPBOARD_DeleteRecord(lpFormat, TRUE);
 421
 422         /* delete existing CF_TEXT/CF_OEMTEXT aliases */
 423
 424         if( wFormat == CF_TEXT && ClipFormats[CF_OEMTEXT-1].hData
 425             && !ClipFormats[CF_OEMTEXT-1].wDataPresent )
 426             CLIPBOARD_DeleteRecord(&ClipFormats[CF_OEMTEXT-1], TRUE);
 427         if( wFormat == CF_OEMTEXT && ClipFormats[CF_TEXT-1].hData
 428             && !ClipFormats[CF_TEXT-1].wDataPresent )
 429             CLIPBOARD_DeleteRecord(&ClipFormats[CF_TEXT-1], TRUE);
 430     }
 431
 432     bCBHasChanged = TRUE;
 433     lpFormat->wDataPresent = 1;
 434     lpFormat->hData = hData;          /* 0 is legal, see WM_RENDERFORMAT */
 435
 436     return lpFormat->hData;
 437 }
 438
 439
 440 /**************************************************************************
 441  *            SetClipboardData32   (USER32.470)
 442  */
 443 HANDLE32 WINAPI SetClipboardData32( UINT32 wFormat, HANDLE32 hData )
 444 {
 445     fprintf( stderr, "SetClipboardData: empty stub\n" );
 446     return 0;
 447 }
 448
 449
 450 /**************************************************************************
 451  *                      CLIPBOARD_RenderFormat
 452  */
 453 static BOOL32 CLIPBOARD_RenderFormat(LPCLIPFORMAT lpFormat)
 454 {
 455    if( lpFormat->wDataPresent && !lpFormat->hData )
 456    if( IsWindow32(hWndClipOwner) )
 457        SendMessage16(hWndClipOwner,WM_RENDERFORMAT,
 458                      (WPARAM16)lpFormat->wFormatID,0L);
 459    else
 460    {
 461        WARN(clipboard, "\thWndClipOwner (%04x) is lost!\n",
 462                                       hWndClipOwner);
 463        hWndClipOwner = 0; lpFormat->wDataPresent = 0;
 464        return FALSE;
 465    }
 466    return (lpFormat->hData) ? TRUE : FALSE;
 467 }
 468
 469 /**************************************************************************
 470  *                      CLIPBOARD_RenderText
 471  *
 472  * Convert text between UNIX and DOS formats.
 473  */
 474 static BOOL32 CLIPBOARD_RenderText(LPCLIPFORMAT lpTarget, LPCLIPFORMAT lpSource)
 475 {
 476     UINT16 size = GlobalSize16( lpSource->hData );
 477     LPCSTR lpstrS = (LPSTR)GlobalLock16(lpSource->hData);
 478     LPSTR  lpstrT;
 479
 480     if( !lpstrS ) return FALSE;
 481     TRACE(clipboard,"\tconverting from '%s' to '%s', %i chars\n",
 482                                       lpSource->Name, lpTarget->Name, size);
 483
 484     lpTarget->hData = GlobalAlloc16(GMEM_ZEROINIT, size);
 485     lpstrT = (LPSTR)GlobalLock16(lpTarget->hData);
 486
 487     if( lpstrT )
 488     {
 489         if( lpSource->wFormatID == CF_TEXT )
 490             CharToOemBuff32A(lpstrS, lpstrT, size);
 491         else
 492             OemToCharBuff32A(lpstrS, lpstrT, size);
 493         TRACE(clipboard,"\tgot %s\n", lpstrT);
 494         return TRUE;
 495     }
 496
 497     lpTarget->hData = 0;
 498     return FALSE;
 499 }
 500
 501 /**************************************************************************
 502  *             GetClipboardData16   (USER.142)
 503  */
 504 HANDLE16 WINAPI GetClipboardData16( UINT16 wFormat )
 505 {
 506     LPCLIPFORMAT lpRender = ClipFormats;
 507     LPCLIPFORMAT lpUpdate = NULL;
 508
 509     if (hqClipLock != GetTaskQueue(0)) return 0;
 510
 511     TRACE(clipboard,"(%04X)\n", wFormat);
 512
 513     if( wFormat == CF_TEXT && !lpRender[CF_TEXT-1].wDataPresent
 514                            &&  lpRender[CF_OEMTEXT-1].wDataPresent )
 515     {
 516         lpRender = &ClipFormats[CF_OEMTEXT-1];
 517         lpUpdate = &ClipFormats[CF_TEXT-1];
 518
 519         TRACE(clipboard,"\tOEMTEXT -> TEXT\n");
 520     }
 521     else if( wFormat == CF_OEMTEXT && !lpRender[CF_OEMTEXT-1].wDataPresent
 522                                    &&  lpRender[CF_TEXT-1].wDataPresent )
 523     {
 524         lpRender = &ClipFormats[CF_TEXT-1];
 525         lpUpdate = &ClipFormats[CF_OEMTEXT-1];
 526
 527         TRACE(clipboard,"\tTEXT -> OEMTEXT\n");
 528     }
 529     else
 530     {
 531         lpRender = __lookup_format( ClipFormats, wFormat );
 532         lpUpdate = lpRender;
 533     }
 534
 535     if( !lpRender || !CLIPBOARD_RenderFormat(lpRender) ) return 0;
 536     if( lpUpdate != lpRender && !lpUpdate->hData )
 537         CLIPBOARD_RenderText(lpUpdate, lpRender);
 538
 539     TRACE(clipboard,"\treturning %04x (type %i)\n",
 540                               lpUpdate->hData, lpUpdate->wFormatID);
 541     return lpUpdate->hData;
 542 }
 543
 544
 545 /**************************************************************************
 546  *             GetClipboardData32   (USER32.222)
 547  */
 548 HANDLE32 WINAPI GetClipboardData32( UINT32 wFormat )
 549 {
 550     fprintf( stderr, "GetClipboardData32: empty stub\n" );
 551     return 0;
 552 }
 553
 554 /**************************************************************************
 555  *           CountClipboardFormats16   (USER.143)
 556  */
 557 INT16 WINAPI CountClipboardFormats16(void)
 558 {
 559     return CountClipboardFormats32();
 560 }
 561
 562
 563 /**************************************************************************
 564  *           CountClipboardFormats32   (USER32.63)
 565  */
 566 INT32 WINAPI CountClipboardFormats32(void)
 567 {
 568     INT32 FormatCount = 0;
 569     LPCLIPFORMAT lpFormat = ClipFormats;
 570
 571     TRACE(clipboard,"(void)\n");
 572
 573     if( !selectionAcquired ) CLIPBOARD_RequestXSelection();
 574
 575     FormatCount += abs(lpFormat[CF_TEXT-1].wDataPresent -
 576                        lpFormat[CF_OEMTEXT-1].wDataPresent);
 577
 578     while(TRUE)
 579     {
 580         if (lpFormat == NULL) break;
 581         if (lpFormat->wDataPresent)
 582         {
 583             TRACE(clipboard, "\tdata found for format %i\n", lpFormat->wFormatID);
 584             FormatCount++;
 585         }
 586         lpFormat = lpFormat->NextFormat;
 587     }
 588
 589     TRACE(clipboard,"\ttotal %d\n", FormatCount);
 590     return FormatCount;
 591 }
 592
 593
 594 /**************************************************************************
 595  *            EnumClipboardFormats16   (USER.144)
 596  */
 597 UINT16 WINAPI EnumClipboardFormats16( UINT16 wFormat )
 598 {
 599     return EnumClipboardFormats32( wFormat );
 600 }
 601
 602
 603 /**************************************************************************
 604  *            EnumClipboardFormats32   (USER32.179)
 605  */
 606 UINT32 WINAPI EnumClipboardFormats32( UINT32 wFormat )
 607 {
 608     LPCLIPFORMAT lpFormat = ClipFormats;
 609
 610     TRACE(clipboard,"(%04X)\n", wFormat);
 611
 612     if( hqClipLock != GetTaskQueue(0) ) return 0;
 613
 614     if( (!wFormat || wFormat == CF_TEXT || wFormat == CF_OEMTEXT)
 615          && !selectionAcquired) CLIPBOARD_RequestXSelection();
 616
 617     if (wFormat == 0)
 618         if (lpFormat->wDataPresent || ClipFormats[CF_OEMTEXT-1].wDataPresent)
 619             return lpFormat->wFormatID;
 620         else
 621             wFormat = lpFormat->wFormatID; /* and CF_TEXT is not available */
 622
 623     /* walk up to the specified format record */
 624
 625     if( !(lpFormat = __lookup_format( lpFormat, wFormat )) ) return 0;
 626
 627     /* find next format with available data */
 628
 629     lpFormat = lpFormat->NextFormat;
 630     while(TRUE)
 631     {
 632         if (lpFormat == NULL) return 0;
 633         if (lpFormat->wDataPresent || (lpFormat->wFormatID == CF_OEMTEXT &&
 634                                        ClipFormats[CF_TEXT-1].wDataPresent))
 635             break;
 636         lpFormat = lpFormat->NextFormat;
 637     }
 638
 639     return lpFormat->wFormatID;
 640 }
 641
 642
 643 /**************************************************************************
 644  *            RegisterClipboardFormat16  (USER.145)
 645  */
 646 UINT16 WINAPI RegisterClipboardFormat16( LPCSTR FormatName )
 647 {
 648     LPCLIPFORMAT lpNewFormat;
 649     LPCLIPFORMAT lpFormat = ClipFormats;
 650
 651     if (FormatName == NULL) return 0;
 652
 653     TRACE(clipboard,"('%s') !\n", FormatName);
 654
 655     /* walk format chain to see if it's already registered */
 656
 657     while(TRUE)
 658     {
 659         if ( !strcmp(lpFormat->Name,FormatName) )
 660         {
 661              lpFormat->wRefCount++;
 662              return lpFormat->wFormatID;
 663         }
 664
 665         if ( lpFormat->NextFormat == NULL ) break;
 666
 667         lpFormat = lpFormat->NextFormat;
 668     }
 669
 670     /* allocate storage for new format entry */
 671
 672     lpNewFormat = (LPCLIPFORMAT)xmalloc(sizeof(CLIPFORMAT));
 673     lpFormat->NextFormat = lpNewFormat;
 674     lpNewFormat->wFormatID = LastRegFormat;
 675     lpNewFormat->wRefCount = 1;
 676
 677     lpNewFormat->Name = (LPSTR)xmalloc(strlen(FormatName) + 1);
 678     strcpy(lpNewFormat->Name, FormatName);
 679
 680     lpNewFormat->wDataPresent = 0;
 681     lpNewFormat->hData = 0;
 682     lpNewFormat->BufSize = 0;
 683     lpNewFormat->PrevFormat = lpFormat;
 684     lpNewFormat->NextFormat = NULL;
 685
 686     return LastRegFormat++;
 687 }
 688
 689
 690 /**************************************************************************
 691  *            RegisterClipboardFormat32A   (USER32.431)
 692  */
 693 UINT32 WINAPI RegisterClipboardFormat32A( LPCSTR formatName )
 694 {
 695     return RegisterClipboardFormat16( formatName );
 696 }
 697
 698
 699 /**************************************************************************
 700  *            RegisterClipboardFormat32W   (USER32.432)
 701  */
 702 UINT32 WINAPI RegisterClipboardFormat32W( LPCWSTR formatName )
 703 {
 704     LPSTR aFormat = HEAP_strdupWtoA( GetProcessHeap(), 0, formatName );
 705     UINT32 ret = RegisterClipboardFormat32A( aFormat );
 706     HeapFree( GetProcessHeap(), 0, aFormat );
 707     return ret;
 708 }
 709
 710 /**************************************************************************
 711  *            GetClipboardFormatName16   (USER.146)
 712  */
 713 INT16 WINAPI GetClipboardFormatName16( UINT16 wFormat, LPSTR retStr, INT16 maxlen )
 714 {
 715     return GetClipboardFormatName32A( wFormat, retStr, maxlen );
 716 }
 717
 718
 719 /**************************************************************************
 720  *            GetClipboardFormatName32A   (USER32.223)
 721  */
 722 INT32 WINAPI GetClipboardFormatName32A( UINT32 wFormat, LPSTR retStr, INT32 maxlen )
 723 {
 724     LPCLIPFORMAT lpFormat = __lookup_format( ClipFormats, wFormat );
 725
 726     TRACE(clipboard, "(%04X, %p, %d) !\n", wFormat, retStr, maxlen);
 727
 728     if (lpFormat == NULL || lpFormat->Name == NULL ||
 729         lpFormat->wFormatID < CF_REGFORMATBASE) return 0;
 730
 731     TRACE(clipboard, "Name='%s' !\n", lpFormat->Name);
 732
 733     lstrcpyn32A( retStr, lpFormat->Name, maxlen );
 734     return strlen(retStr);
 735 }
 736
 737
 738 /**************************************************************************
 739  *            GetClipboardFormatName32W   (USER32.224)
 740  */
 741 INT32 WINAPI GetClipboardFormatName32W( UINT32 wFormat, LPWSTR retStr, INT32 maxlen )
 742 {
 743     LPSTR p = HEAP_xalloc( GetProcessHeap(), 0, maxlen );
 744     INT32 ret = GetClipboardFormatName32A( wFormat, p, maxlen );
 745     lstrcpynAtoW( retStr, p, maxlen );
 746     HeapFree( GetProcessHeap(), 0, p );
 747     return ret;
 748 }
 749
 750
 751 /**************************************************************************
 752  *            SetClipboardViewer16   (USER.147)
 753  */
 754 HWND16 WINAPI SetClipboardViewer16( HWND16 hWnd )
 755 {
 756     return SetClipboardViewer32( hWnd );
 757 }
 758
 759
 760 /**************************************************************************
 761  *            SetClipboardViewer32   (USER32.471)
 762  */
 763 HWND32 WINAPI SetClipboardViewer32( HWND32 hWnd )
 764 {
 765     HWND32 hwndPrev = hWndViewer;
 766
 767     TRACE(clipboard,"(%04x): returning %04x\n", hWnd, hwndPrev);
 768
 769     hWndViewer = hWnd;
 770     return hwndPrev;
 771 }
 772
 773
 774 /**************************************************************************
 775  *           GetClipboardViewer16   (USER.148)
 776  */
 777 HWND16 WINAPI GetClipboardViewer16(void)
 778 {
 779     return hWndViewer;
 780 }
 781
 782
 783 /**************************************************************************
 784  *           GetClipboardViewer32   (USER32.226)
 785  */
 786 HWND32 WINAPI GetClipboardViewer32(void)
 787 {
 788     return hWndViewer;
 789 }
 790
 791
 792 /**************************************************************************
 793  *           ChangeClipboardChain16   (USER.149)
 794  */
 795 BOOL16 WINAPI ChangeClipboardChain16(HWND16 hWnd, HWND16 hWndNext)
 796 {
 797     return ChangeClipboardChain32(hWnd, hWndNext);
 798 }
 799
 800 /**************************************************************************
 801  *           ChangeClipboardChain32   (USER32.22)
 802  */
 803 BOOL32 WINAPI ChangeClipboardChain32(HWND32 hWnd, HWND32 hWndNext)
 804 {
 805     BOOL32 bRet = 0;
 806
 807     FIXME(clipboard, "(%04x, %04x) - stub?\n",
 808                       hWnd, hWndNext);
 809
 810     if( hWndViewer )
 811         bRet = !SendMessage16( hWndViewer, WM_CHANGECBCHAIN,
 812                              (WPARAM16)hWnd, (LPARAM)hWndNext);
 813     else
 814         WARN(clipboard, "hWndViewer is lost\n");
 815
 816     if( hWnd == hWndViewer ) hWndViewer = hWndNext;
 817
 818     return bRet;
 819 }
 820
 821
 822
 823 /**************************************************************************
 824  *           IsClipboardFormatAvailable16   (USER.193)
 825  */
 826 BOOL16 WINAPI IsClipboardFormatAvailable16( UINT16 wFormat )
 827 {
 828     return IsClipboardFormatAvailable32( wFormat );
 829 }
 830
 831
 832 /**************************************************************************
 833  *           IsClipboardFormatAvailable32   (USER32.340)
 834  */
 835 BOOL32 WINAPI IsClipboardFormatAvailable32( UINT32 wFormat )
 836 {
 837     TRACE(clipboard,"(%04X) !\n", wFormat);
 838
 839     if( (wFormat == CF_TEXT || wFormat == CF_OEMTEXT) &&
 840         !selectionAcquired ) CLIPBOARD_RequestXSelection();
 841
 842     return CLIPBOARD_IsPresent(wFormat);
 843 }
 844
 845
 846 /**************************************************************************
 847  *             GetOpenClipboardWindow16   (USER.248)
 848  */
 849 HWND16 WINAPI GetOpenClipboardWindow16(void)
 850 {
 851     return hWndClipWindow;
 852 }
 853
 854
 855 /**************************************************************************
 856  *             GetOpenClipboardWindow32   (USER32.277)
 857  */
 858 HWND32 WINAPI GetOpenClipboardWindow32(void)
 859 {
 860     return hWndClipWindow;
 861 }
 862
 863
 864 /**************************************************************************
 865  *             GetPriorityClipboardFormat16   (USER.402)
 866  */
 867 INT16 WINAPI GetPriorityClipboardFormat16( UINT16 *lpPriorityList, INT16 nCount)
 868 {
 869     fprintf( stderr, "GetPriorityClipboardFormat16(%p, %d): stub\n",
 870              lpPriorityList, nCount );
 871     return 0;
 872 }
 873
 874
 875 /**************************************************************************
 876  *             GetPriorityClipboardFormat32   (USER32.279)
 877  */
 878 INT32 WINAPI GetPriorityClipboardFormat32( UINT32 *lpPriorityList, INT32 nCount )
 879 {
 880     int Counter;
 881
 882     if(CountClipboardFormats32() == 0)
 883     {
 884         return 0;
 885     }
 886
 887     for(Counter = 0; Counter <= nCount; Counter++)
 888     {
 889         if(IsClipboardFormatAvailable32(*(lpPriorityList+sizeof(INT32)*Counter)))
 890             return *(lpPriorityList+sizeof(INT32)*Counter);
 891     }
 892
 893     return -1;
 894 }
 895
 896
 897 /**************************************************************************
 898  *                      CLIPBOARD_ReadSelection
 899  *
 900  * Called from the SelectionNotify event handler.
 901  */
 902 void CLIPBOARD_ReadSelection(Window w,Atom prop)
 903 {
 904     HANDLE16     hText = 0;
 905     LPCLIPFORMAT lpFormat = ClipFormats;
 906
 907     TRACE(clipboard,"ReadSelection callback\n");
 908
 909     if(prop != None)
 910     {
 911         Atom            atype=AnyPropertyType;
 912         int             aformat;
 913         unsigned long   nitems,remain;
 914         unsigned char*  val=NULL;
 915
 916         TRACE(clipboard,"\tgot property %s\n",TSXGetAtomName(display,prop));
 917
 918         /* TODO: Properties longer than 64K */
 919
 920         if(TSXGetWindowProperty(display,w,prop,0,0x3FFF,True,XA_STRING,
 921             &atype, &aformat, &nitems, &remain, &val) != Success)
 922             WARN(clipboard, "\tcouldn't read property\n");
 923         else
 924         {
 925            TRACE(clipboard,"\tType %s,Format %d,nitems %ld,value %s\n",
 926                              TSXGetAtomName(display,atype),aformat,nitems,val);
 927
 928            if(atype == XA_STRING && aformat == 8)
 929            {
 930               int       i,inlcount = 0;
 931               char*     lpstr;
 932
 933               TRACE(clipboard,"\tselection is '%s'\n",val);
 934
 935               for(i=0; i <= nitems; i++)
 936                   if( val[i] == '\n' ) inlcount++;
 937
 938               if( nitems )
 939               {
 940                 hText=GlobalAlloc16(GMEM_MOVEABLE, nitems + inlcount + 1);
 941                 if( (lpstr = (char*)GlobalLock16(hText)) )
 942                   for(i=0,inlcount=0; i <= nitems; i++)
 943                   {
 944                      if( val[i] == '\n' ) lpstr[inlcount++]='\r';
 945                      lpstr[inlcount++]=val[i];
 946                   }
 947                 else hText = 0;
 948               }
 949            }
 950            TSXFree(val);
 951         }
 952    }
 953
 954    /* delete previous CF_TEXT and CF_OEMTEXT data */
 955
 956    if( hText )
 957    {
 958      lpFormat = &ClipFormats[CF_TEXT-1];
 959      if (lpFormat->wDataPresent || lpFormat->hData)
 960          CLIPBOARD_DeleteRecord(lpFormat, !(hWndClipWindow));
 961      lpFormat = &ClipFormats[CF_OEMTEXT-1];
 962      if (lpFormat->wDataPresent || lpFormat->hData)
 963          CLIPBOARD_DeleteRecord(lpFormat, !(hWndClipWindow));
 964
 965      lpFormat->wDataPresent = 1;
 966      lpFormat->hData = hText;
 967    }
 968
 969    selectionWait=False;
 970 }
 971
 972 /**************************************************************************
 973  *                      CLIPBOARD_ReleaseSelection
 974  *
 975  * Wine might have lost XA_PRIMARY selection because of
 976  * EmptyClipboard() or other client.
 977  */
 978 void CLIPBOARD_ReleaseSelection(Window w, HWND32 hwnd)
 979 {
 980     /* w is the window that lost selection,
 981      *
 982      * selectionPrevWindow is nonzero if CheckSelection() was called.
 983      */
 984
 985     TRACE(clipboard,"\tevent->window = %08x (sw = %08x, spw=%08x)\n",
 986           (unsigned)w, (unsigned)selectionWindow, (unsigned)selectionPrevWindow );
 987
 988     if( selectionAcquired )
 989         if( w == selectionWindow || selectionPrevWindow == None)
 990         {
 991             /* alright, we really lost it */
 992
 993             selectionAcquired = False;
 994             selectionWindow = None;
 995
 996             /* but we'll keep existing data for internal use */
 997         }
 998         else if( w == selectionPrevWindow )
 999         {
1000             w = TSXGetSelectionOwner(display, XA_PRIMARY);
1001             if( w == None )
1002                 TSXSetSelectionOwner(display, XA_PRIMARY, selectionWindow, CurrentTime);
1003         }
1004
1005     selectionPrevWindow = None;
1006 }
1007