dlls/winex11.drv/ime.c

   1 /*
   2  * The IME for interfacing with XIM
   3  *
   4  * Copyright 2008 CodeWeavers, Aric Stewart
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 /*
  22  * Notes:
  23  *  The normal flow for IMM/IME Processing is as follows.
  24  * 1) The Keyboard Driver generates key messages which are first passed to
  25  *    the IMM and then to IME via ImeProcessKey. If the IME returns 0  then
  26  *    it does not want the key and the keyboard driver then generates the
  27  *    WM_KEYUP/WM_KEYDOWN messages.  However if the IME is going to process the
  28  *    key it returns non-zero.
  29  * 2) If the IME is going to process the key then the IMM calls ImeToAsciiEx to
  30  *    process the key.  the IME modifies the HIMC structure to reflect the
  31  *    current state and generates any messages it needs the IMM to process.
  32  * 3) IMM checks the messages and send them to the application in question. From
  33  *    here the IMM level deals with if the application is IME aware or not.
  34  *
  35  *  This flow does not work well for the X11 driver and XIM.
  36  *   (It works fine for Mac)
  37  *  As such we will have to reroute step 1.  Instead the x11drv driver will
  38  *  generate an XIM events and call directly into this IME implimenetaion.
  39  *  As such we will have to use the alternative ImmGenerateMessage path to be
  40  *  generate the messages that we want the IMM layer to send to the application.
  41  */
  42
  43 #include "config.h"
  44
  45 #include <stdarg.h>
  46 #include "windef.h"
  47 #include "winbase.h"
  48 #include "wingdi.h"
  49 #include "winuser.h"
  50 #include "winerror.h"
  51 #include "wine/debug.h"
  52 #include "imm.h"
  53 #include "ddk/imm.h"
  54 #include "winnls.h"
  55 #include "x11drv.h"
  56
  57 WINE_DEFAULT_DEBUG_CHANNEL(imm);
  58
  59 #define FROM_X11 ((HIMC)0xcafe1337)
  60
  61 typedef struct _IMEPRIVATE {
  62     BOOL bInComposition;
  63     BOOL bInternalState;
  64     HFONT textfont;
  65     HWND hwndDefault;
  66 } IMEPRIVATE, *LPIMEPRIVATE;
  67
  68 typedef struct _tagTRANSMSG {
  69     UINT message;
  70     WPARAM wParam;
  71     LPARAM lParam;
  72 } TRANSMSG, *LPTRANSMSG;
  73
  74 static const WCHAR UI_CLASS_NAME[] = {'W','i','n','e','X','1','1','I','M','E',0};
  75
  76 static HIMC *hSelectedFrom = NULL;
  77 static INT  hSelectedCount = 0;
  78 static BOOL hXIMPresent = FALSE;
  79
  80 /* MSIME messages */
  81 static UINT WM_MSIME_SERVICE;
  82 static UINT WM_MSIME_RECONVERTOPTIONS;
  83 static UINT WM_MSIME_MOUSE;
  84 static UINT WM_MSIME_RECONVERTREQUEST;
  85 static UINT WM_MSIME_RECONVERT;
  86 static UINT WM_MSIME_QUERYPOSITION;
  87 static UINT WM_MSIME_DOCUMENTFEED;
  88
  89 static LRESULT WINAPI IME_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam,
  90                                           LPARAM lParam);
  91 static void UpdateDataInDefaultIMEWindow(HIMC hHIMC, HWND hwnd, BOOL showable);
  92
  93 static HIMC RealIMC(HIMC hIMC)
  94 {
  95     if (hIMC == FROM_X11)
  96     {
  97         INT i;
  98         HWND wnd = GetFocus();
  99         HIMC winHimc = ImmGetContext(wnd);
 100         for (i = 0; i < hSelectedCount; i++)
 101             if (winHimc == hSelectedFrom[i])
 102                 return winHimc;
 103         return NULL;
 104     }
 105     else
 106         return hIMC;
 107 }
 108
 109 static LPINPUTCONTEXT LockRealIMC(HIMC hIMC)
 110 {
 111     HIMC real_imc = RealIMC(hIMC);
 112     if (real_imc)
 113         return (LPINPUTCONTEXT)ImmLockIMC(real_imc);
 114     else
 115         return NULL;
 116 }
 117
 118 static BOOL UnlockRealIMC(HIMC hIMC)
 119 {
 120     HIMC real_imc = RealIMC(hIMC);
 121     if (real_imc)
 122         return ImmUnlockIMC(real_imc);
 123     else
 124         return FALSE;
 125 }
 126
 127 static HIMCC ImeCreateBlankCompStr(void)
 128 {
 129     HIMCC rc;
 130     LPCOMPOSITIONSTRING ptr;
 131     rc = ImmCreateIMCC(sizeof(COMPOSITIONSTRING));
 132     ptr = (LPCOMPOSITIONSTRING)ImmLockIMCC(rc);
 133     memset(ptr,0,sizeof(COMPOSITIONSTRING));
 134     ptr->dwSize = sizeof(COMPOSITIONSTRING);
 135     ImmUnlockIMCC(rc);
 136     return rc;
 137 }
 138
 139 static int updateField(DWORD origLen, DWORD origOffset, DWORD currentOffset,
 140                        LPBYTE target, LPBYTE source, DWORD* lenParam,
 141                        DWORD* offsetParam, BOOL wchars )
 142 {
 143      if (origLen > 0 && origOffset > 0)
 144      {
 145         int truelen = origLen;
 146         if (wchars)
 147             truelen *= sizeof(WCHAR);
 148
 149         memcpy(&target[currentOffset], &source[origOffset], truelen);
 150
 151         *lenParam = origLen;
 152         *offsetParam = currentOffset;
 153         currentOffset += truelen;
 154      }
 155      return currentOffset;
 156 }
 157
 158 static HIMCC updateCompStr(HIMCC old, LPWSTR compstr, DWORD len)
 159 {
 160     /* we need to make sure the CompStr, CompClaus and CompAttr fields are all
 161      * set and correct */
 162     int needed_size;
 163     HIMCC   rc;
 164     LPBYTE newdata = NULL;
 165     LPBYTE olddata = NULL;
 166     LPCOMPOSITIONSTRING new_one;
 167     LPCOMPOSITIONSTRING lpcs = NULL;
 168     INT current_offset = 0;
 169
 170     TRACE("%s, %i\n",debugstr_wn(compstr,len),len);
 171
 172     if (old == NULL && compstr == NULL && len == 0)
 173         return NULL;
 174
 175     if (old != NULL)
 176     {
 177         olddata = ImmLockIMCC(old);
 178         lpcs = (LPCOMPOSITIONSTRING)olddata;
 179     }
 180
 181     needed_size = sizeof(COMPOSITIONSTRING) + len * sizeof(WCHAR) +
 182                   len + sizeof(DWORD) * 2;
 183
 184     if (lpcs != NULL)
 185     {
 186         needed_size += lpcs->dwCompReadAttrLen;
 187         needed_size += lpcs->dwCompReadClauseLen;
 188         needed_size += lpcs->dwCompReadStrLen * sizeof(DWORD);
 189         needed_size += lpcs->dwResultReadClauseLen;
 190         needed_size += lpcs->dwResultReadStrLen * sizeof(DWORD);
 191         needed_size += lpcs->dwResultClauseLen;
 192         needed_size += lpcs->dwResultStrLen * sizeof(DWORD);
 193         needed_size += lpcs->dwPrivateSize;
 194     }
 195     rc = ImmCreateIMCC(needed_size);
 196     newdata = ImmLockIMCC(rc);
 197     new_one = (LPCOMPOSITIONSTRING)newdata;
 198
 199     new_one->dwSize = needed_size;
 200     current_offset = sizeof(COMPOSITIONSTRING);
 201     if (lpcs != NULL)
 202     {
 203         current_offset = updateField(lpcs->dwCompReadAttrLen,
 204                                      lpcs->dwCompReadAttrOffset,
 205                                      current_offset, newdata, olddata,
 206                                      &new_one->dwCompReadAttrLen,
 207                                      &new_one->dwCompReadAttrOffset, FALSE);
 208
 209         current_offset = updateField(lpcs->dwCompReadClauseLen,
 210                                      lpcs->dwCompReadClauseOffset,
 211                                      current_offset, newdata, olddata,
 212                                      &new_one->dwCompReadClauseLen,
 213                                      &new_one->dwCompReadClauseOffset, FALSE);
 214
 215         current_offset = updateField(lpcs->dwCompReadStrLen,
 216                                      lpcs->dwCompReadStrOffset,
 217                                      current_offset, newdata, olddata,
 218                                      &new_one->dwCompReadStrLen,
 219                                      &new_one->dwCompReadStrOffset, TRUE);
 220
 221         /* new CompAttr, CompClause, CompStr, dwCursorPos */
 222         new_one->dwDeltaStart = 0;
 223
 224         current_offset = updateField(lpcs->dwResultReadClauseLen,
 225                                      lpcs->dwResultReadClauseOffset,
 226                                      current_offset, newdata, olddata,
 227                                      &new_one->dwResultReadClauseLen,
 228                                      &new_one->dwResultReadClauseOffset, FALSE);
 229
 230         current_offset = updateField(lpcs->dwResultReadStrLen,
 231                                      lpcs->dwResultReadStrOffset,
 232                                      current_offset, newdata, olddata,
 233                                      &new_one->dwResultReadStrLen,
 234                                      &new_one->dwResultReadStrOffset, TRUE);
 235
 236         current_offset = updateField(lpcs->dwResultClauseLen,
 237                                      lpcs->dwResultClauseOffset,
 238                                      current_offset, newdata, olddata,
 239                                      &new_one->dwResultClauseLen,
 240                                      &new_one->dwResultClauseOffset, FALSE);
 241
 242         current_offset = updateField(lpcs->dwResultStrLen,
 243                                      lpcs->dwResultStrOffset,
 244                                      current_offset, newdata, olddata,
 245                                      &new_one->dwResultStrLen,
 246                                      &new_one->dwResultStrOffset, TRUE);
 247
 248         current_offset = updateField(lpcs->dwPrivateSize,
 249                                      lpcs->dwPrivateOffset,
 250                                      current_offset, newdata, olddata,
 251                                      &new_one->dwPrivateSize,
 252                                      &new_one->dwPrivateOffset, FALSE);
 253     }
 254
 255     /* set new data */
 256     /* CompAttr */
 257     new_one->dwCompAttrLen = len;
 258     if (len > 0)
 259     {
 260         new_one->dwCompAttrOffset = current_offset;
 261         memset(&newdata[current_offset],ATTR_INPUT,len);
 262         current_offset += len;
 263     }
 264
 265     /* CompClause */
 266     if (len > 0)
 267     {
 268         new_one->dwCompClauseLen = sizeof(DWORD) * 2;
 269         new_one->dwCompClauseOffset = current_offset;
 270         *(DWORD*)(&newdata[current_offset]) = 0;
 271         current_offset += sizeof(DWORD);
 272         *(DWORD*)(&newdata[current_offset]) = len;
 273         current_offset += sizeof(DWORD);
 274     }
 275
 276     /* CompStr */
 277     new_one->dwCompStrLen = len;
 278     if (len > 0)
 279     {
 280         new_one->dwCompStrOffset = current_offset;
 281         memcpy(&newdata[current_offset],compstr,len*sizeof(WCHAR));
 282     }
 283
 284     /* CursorPos */
 285     new_one->dwCursorPos = len;
 286
 287     ImmUnlockIMCC(rc);
 288     if (lpcs)
 289         ImmUnlockIMCC(old);
 290
 291     return rc;
 292 }
 293
 294 static HIMCC updateResultStr(HIMCC old, LPWSTR resultstr, DWORD len)
 295 {
 296     /* we need to make sure the ResultStr and ResultClause fields are all
 297      * set and correct */
 298     int needed_size;
 299     HIMCC   rc;
 300     LPBYTE newdata = NULL;
 301     LPBYTE olddata = NULL;
 302     LPCOMPOSITIONSTRING new_one;
 303     LPCOMPOSITIONSTRING lpcs = NULL;
 304     INT current_offset = 0;
 305
 306     TRACE("%s, %i\n",debugstr_wn(resultstr,len),len);
 307
 308     if (old == NULL && resultstr == NULL && len == 0)
 309         return NULL;
 310
 311     if (old != NULL)
 312     {
 313         olddata = ImmLockIMCC(old);
 314         lpcs = (LPCOMPOSITIONSTRING)olddata;
 315     }
 316
 317     needed_size = sizeof(COMPOSITIONSTRING) + len * sizeof(WCHAR) +
 318                   sizeof(DWORD) * 2;
 319
 320     if (lpcs != NULL)
 321     {
 322         needed_size += lpcs->dwCompReadAttrLen;
 323         needed_size += lpcs->dwCompReadClauseLen;
 324         needed_size += lpcs->dwCompReadStrLen * sizeof(DWORD);
 325         needed_size += lpcs->dwCompAttrLen;
 326         needed_size += lpcs->dwCompClauseLen;
 327         needed_size += lpcs->dwCompStrLen * sizeof(DWORD);
 328         needed_size += lpcs->dwResultReadClauseLen;
 329         needed_size += lpcs->dwResultReadStrLen * sizeof(DWORD);
 330         needed_size += lpcs->dwPrivateSize;
 331     }
 332     rc = ImmCreateIMCC(needed_size);
 333     newdata = ImmLockIMCC(rc);
 334     new_one = (LPCOMPOSITIONSTRING)newdata;
 335
 336     new_one->dwSize = needed_size;
 337     current_offset = sizeof(COMPOSITIONSTRING);
 338     if (lpcs != NULL)
 339     {
 340         current_offset = updateField(lpcs->dwCompReadAttrLen,
 341                                      lpcs->dwCompReadAttrOffset,
 342                                      current_offset, newdata, olddata,
 343                                      &new_one->dwCompReadAttrLen,
 344                                      &new_one->dwCompReadAttrOffset, FALSE);
 345
 346         current_offset = updateField(lpcs->dwCompReadClauseLen,
 347                                      lpcs->dwCompReadClauseOffset,
 348                                      current_offset, newdata, olddata,
 349                                      &new_one->dwCompReadClauseLen,
 350                                      &new_one->dwCompReadClauseOffset, FALSE);
 351
 352         current_offset = updateField(lpcs->dwCompReadStrLen,
 353                                      lpcs->dwCompReadStrOffset,
 354                                      current_offset, newdata, olddata,
 355                                      &new_one->dwCompReadStrLen,
 356                                      &new_one->dwCompReadStrOffset, TRUE);
 357
 358         current_offset = updateField(lpcs->dwCompAttrLen,
 359                                      lpcs->dwCompAttrOffset,
 360                                      current_offset, newdata, olddata,
 361                                      &new_one->dwCompAttrLen,
 362                                      &new_one->dwCompAttrOffset, FALSE);
 363
 364         current_offset = updateField(lpcs->dwCompClauseLen,
 365                                      lpcs->dwCompClauseOffset,
 366                                      current_offset, newdata, olddata,
 367                                      &new_one->dwCompClauseLen,
 368                                      &new_one->dwCompClauseOffset, FALSE);
 369
 370         current_offset = updateField(lpcs->dwCompStrLen,
 371                                      lpcs->dwCompStrOffset,
 372                                      current_offset, newdata, olddata,
 373                                      &new_one->dwCompStrLen,
 374                                      &new_one->dwCompStrOffset, TRUE);
 375
 376         new_one->dwCursorPos = lpcs->dwCursorPos;
 377         new_one->dwDeltaStart = 0;
 378
 379         current_offset = updateField(lpcs->dwResultReadClauseLen,
 380                                      lpcs->dwResultReadClauseOffset,
 381                                      current_offset, newdata, olddata,
 382                                      &new_one->dwResultReadClauseLen,
 383                                      &new_one->dwResultReadClauseOffset, FALSE);
 384
 385         current_offset = updateField(lpcs->dwResultReadStrLen,
 386                                      lpcs->dwResultReadStrOffset,
 387                                      current_offset, newdata, olddata,
 388                                      &new_one->dwResultReadStrLen,
 389                                      &new_one->dwResultReadStrOffset, TRUE);
 390
 391         /* new ResultClause , ResultStr */
 392
 393         current_offset = updateField(lpcs->dwPrivateSize,
 394                                      lpcs->dwPrivateOffset,
 395                                      current_offset, newdata, olddata,
 396                                      &new_one->dwPrivateSize,
 397                                      &new_one->dwPrivateOffset, FALSE);
 398     }
 399
 400     /* set new data */
 401     /* ResultClause */
 402     if (len > 0)
 403     {
 404         new_one->dwResultClauseLen = sizeof(DWORD) * 2;
 405         new_one->dwResultClauseOffset = current_offset;
 406         *(DWORD*)(&newdata[current_offset]) = 0;
 407         current_offset += sizeof(DWORD);
 408         *(DWORD*)(&newdata[current_offset]) = len;
 409         current_offset += sizeof(DWORD);
 410     }
 411
 412     /* ResultStr */
 413     new_one->dwResultStrLen = len;
 414     if (len > 0)
 415     {
 416         new_one->dwResultStrOffset = current_offset;
 417         memcpy(&newdata[current_offset],resultstr,len*sizeof(WCHAR));
 418     }
 419     ImmUnlockIMCC(rc);
 420     if (lpcs)
 421         ImmUnlockIMCC(old);
 422
 423     return rc;
 424 }
 425
 426 static void GenerateIMEMessage(HIMC hIMC, UINT msg, WPARAM wParam,
 427                                LPARAM lParam)
 428 {
 429     LPINPUTCONTEXT lpIMC;
 430     LPTRANSMSG lpTransMsg;
 431
 432     lpIMC = LockRealIMC(hIMC);
 433     if (lpIMC == NULL)
 434         return;
 435
 436     lpIMC->hMsgBuf = ImmReSizeIMCC(lpIMC->hMsgBuf, (lpIMC->dwNumMsgBuf + 1) *
 437                                     sizeof(TRANSMSG));
 438     if (!lpIMC->hMsgBuf)
 439         return;
 440
 441     lpTransMsg = (LPTRANSMSG)ImmLockIMCC(lpIMC->hMsgBuf);
 442     if (!lpTransMsg)
 443         return;
 444
 445     lpTransMsg += lpIMC->dwNumMsgBuf;
 446     lpTransMsg->message = msg;
 447     lpTransMsg->wParam = wParam;
 448     lpTransMsg->lParam = lParam;
 449
 450     ImmUnlockIMCC(lpIMC->hMsgBuf);
 451     lpIMC->dwNumMsgBuf++;
 452
 453     ImmGenerateMessage(RealIMC(hIMC));
 454     UnlockRealIMC(hIMC);
 455 }
 456
 457 static void GenerateIMECHARMessages(HIMC hIMC, LPWSTR String, DWORD length)
 458 {
 459     LPINPUTCONTEXT lpIMC;
 460     LPTRANSMSG lpTransMsg;
 461     INT i;
 462
 463     if (length <= 0)
 464         return;
 465
 466     lpIMC = LockRealIMC(hIMC);
 467     if (lpIMC == NULL)
 468         return;
 469
 470     lpIMC->hMsgBuf = ImmReSizeIMCC(lpIMC->hMsgBuf,
 471                                   (lpIMC->dwNumMsgBuf + length) *
 472                                     sizeof(TRANSMSG));
 473     if (!lpIMC->hMsgBuf)
 474         return;
 475
 476     lpTransMsg = (LPTRANSMSG)ImmLockIMCC(lpIMC->hMsgBuf);
 477     if (!lpTransMsg)
 478         return;
 479
 480     lpTransMsg += lpIMC->dwNumMsgBuf;
 481     for (i = 0; i < length; i++)
 482     {
 483         lpTransMsg->message = WM_IME_CHAR;
 484         lpTransMsg->wParam = String[i];
 485         lpTransMsg->lParam = 1;
 486         lpTransMsg ++;
 487     }
 488
 489     ImmUnlockIMCC(lpIMC->hMsgBuf);
 490     lpIMC->dwNumMsgBuf+=length;
 491
 492     ImmGenerateMessage(RealIMC(hIMC));
 493     UnlockRealIMC(hIMC);
 494 }
 495
 496 static BOOL IME_RemoveFromSelected(HIMC hIMC)
 497 {
 498     int i;
 499     for (i = 0; i < hSelectedCount; i++)
 500         if (hSelectedFrom[i] == hIMC)
 501         {
 502             if (i < hSelectedCount - 1)
 503                 memcpy(&hSelectedFrom[i], &hSelectedFrom[i+1], (hSelectedCount - i - 1)*sizeof(HIMC));
 504             hSelectedCount --;
 505             return TRUE;
 506         }
 507     return FALSE;
 508 }
 509
 510 static void IME_AddToSelected(HIMC hIMC)
 511 {
 512     hSelectedCount++;
 513     if (hSelectedFrom)
 514         hSelectedFrom = HeapReAlloc(GetProcessHeap(), 0, hSelectedFrom, hSelectedCount*sizeof(HIMC));
 515     else
 516         hSelectedFrom = HeapAlloc(GetProcessHeap(), 0, sizeof(HIMC));
 517     hSelectedFrom[hSelectedCount-1] = hIMC;
 518 }
 519
 520 BOOL WINAPI ImeInquire(LPIMEINFO lpIMEInfo, LPWSTR lpszUIClass,
 521                        LPCWSTR lpszOption)
 522 {
 523     TRACE("\n");
 524     if (!hXIMPresent)
 525     {
 526         ERR("No XIM in the back end\n");
 527         return FALSE;
 528     }
 529     lpIMEInfo->dwPrivateDataSize = sizeof (IMEPRIVATE);
 530     lpIMEInfo->fdwProperty = IME_PROP_UNICODE | IME_PROP_AT_CARET;
 531     lpIMEInfo->fdwConversionCaps = IME_CMODE_NATIVE;
 532     lpIMEInfo->fdwSentenceCaps = IME_SMODE_AUTOMATIC;
 533     lpIMEInfo->fdwUICaps = UI_CAP_2700;
 534     /* Tell App we cannot accept ImeSetCompositionString calls */
 535     lpIMEInfo->fdwSCSCaps = 0;
 536     lpIMEInfo->fdwSelectCaps = SELECT_CAP_CONVERSION;
 537
 538     lstrcpyW(lpszUIClass,UI_CLASS_NAME);
 539
 540     return TRUE;
 541 }
 542
 543 BOOL WINAPI ImeConfigure(HKL hKL,HWND hWnd, DWORD dwMode, LPVOID lpData)
 544 {
 545     FIXME("(%p, %p, %d, %p): stub\n", hKL, hWnd, dwMode, lpData);
 546     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 547     return FALSE;
 548 }
 549
 550 DWORD WINAPI ImeConversionList(HIMC hIMC, LPCWSTR lpSource,
 551                 LPCANDIDATELIST lpCandList, DWORD dwBufLen, UINT uFlag)
 552
 553 {
 554     FIXME("(%p, %s, %p, %d, %d): stub\n", hIMC, debugstr_w(lpSource),
 555                                           lpCandList, dwBufLen, uFlag);
 556     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 557     return 0;
 558 }
 559
 560 BOOL WINAPI ImeDestroy(UINT uForce)
 561 {
 562     TRACE("\n");
 563     HeapFree(GetProcessHeap(),0,hSelectedFrom);
 564     hSelectedFrom = NULL;
 565     hSelectedCount = 0;
 566     return TRUE;
 567 }
 568
 569 LRESULT WINAPI ImeEscape(HIMC hIMC, UINT uSubFunc, LPVOID lpData)
 570 {
 571     FIXME("(%p, %d, %p): stub\n", hIMC, uSubFunc, lpData);
 572     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 573     return 0;
 574 }
 575
 576 BOOL WINAPI ImeProcessKey(HIMC hIMC, UINT vKey, LPARAM lKeyData,
 577                              CONST LPBYTE lpbKeyState)
 578 {
 579     /* See the comment at the head of this file */
 580     TRACE("We do no processing via this route\n");
 581     return FALSE;
 582 }
 583
 584 BOOL WINAPI ImeSelect(HIMC hIMC, BOOL fSelect)
 585 {
 586     LPINPUTCONTEXT lpIMC;
 587     TRACE("%p %s\n",hIMC,(fSelect)?"TRUE":"FALSE");
 588
 589     if (hIMC == FROM_X11)
 590     {
 591         ERR("ImeSelect should never be called from X11\n");
 592         return FALSE;
 593     }
 594
 595     if (!hXIMPresent)
 596     {
 597         ERR("No XIM in the back end\n");
 598         return FALSE;
 599     }
 600
 601     if (!hIMC)
 602         return TRUE;
 603
 604     /* not selected */
 605     if (!fSelect)
 606         return IME_RemoveFromSelected(hIMC);
 607
 608     IME_AddToSelected(hIMC);
 609
 610     /* Initialize our structures */
 611     lpIMC = LockRealIMC(hIMC);
 612     if (lpIMC != NULL)
 613     {
 614         LPIMEPRIVATE myPrivate;
 615         myPrivate = (LPIMEPRIVATE)ImmLockIMCC(lpIMC->hPrivate);
 616         myPrivate->bInComposition = FALSE;
 617         myPrivate->bInternalState = FALSE;
 618         myPrivate->textfont = NULL;
 619         myPrivate->hwndDefault = NULL;
 620         ImmUnlockIMCC(lpIMC->hPrivate);
 621         UnlockRealIMC(hIMC);
 622     }
 623
 624     return TRUE;
 625 }
 626
 627 BOOL WINAPI ImeSetActiveContext(HIMC hIMC,BOOL fFlag)
 628 {
 629     FIXME("Stub");
 630     return TRUE;
 631 }
 632
 633 UINT WINAPI ImeToAsciiEx (UINT uVKey, UINT uScanCode,
 634                           CONST LPBYTE lpbKeyState, LPDWORD lpdwTransKey,
 635                           UINT fuState, HIMC hIMC)
 636 {
 637     /* See the comment at the head of this file */
 638     TRACE("We do no processing via this route\n");
 639     return 0;
 640 }
 641
 642 BOOL WINAPI NotifyIME(HIMC hIMC, DWORD dwAction, DWORD dwIndex, DWORD dwValue)
 643 {
 644     BOOL bRet = FALSE;
 645     LPINPUTCONTEXT lpIMC;
 646
 647     TRACE("%p %i %i %i\n",hIMC,dwAction,dwIndex,dwValue);
 648
 649     lpIMC = LockRealIMC(hIMC);
 650     if (lpIMC == NULL)
 651         return FALSE;
 652
 653     switch (dwAction)
 654     {
 655         case NI_OPENCANDIDATE: FIXME("NI_OPENCANDIDATE\n"); break;
 656         case NI_CLOSECANDIDATE: FIXME("NI_CLOSECANDIDATE\n"); break;
 657         case NI_SELECTCANDIDATESTR: FIXME("NI_SELECTCANDIDATESTR\n"); break;
 658         case NI_CHANGECANDIDATELIST: FIXME("NI_CHANGECANDIDATELIST\n"); break;
 659         case NI_SETCANDIDATE_PAGESTART: FIXME("NI_SETCANDIDATE_PAGESTART\n"); break;
 660         case NI_SETCANDIDATE_PAGESIZE: FIXME("NI_SETCANDIDATE_PAGESIZE\n"); break;
 661         case NI_CONTEXTUPDATED:
 662             FIXME("NI_CONTEXTUPDATED:");
 663             switch (dwValue)
 664             {
 665                 case IMC_SETCOMPOSITIONWINDOW: FIXME("IMC_SETCOMPOSITIONWINDOW\n"); break;
 666                 case IMC_SETCONVERSIONMODE: FIXME("IMC_SETCONVERSIONMODE\n"); break;
 667                 case IMC_SETSENTENCEMODE: FIXME("IMC_SETSENTENCEMODE\n"); break;
 668                 case IMC_SETCANDIDATEPOS: FIXME("IMC_SETCANDIDATEPOS\n"); break;
 669                 case IMC_SETCOMPOSITIONFONT:
 670                     {
 671                         LPIMEPRIVATE myPrivate;
 672                         TRACE("IMC_SETCOMPOSITIONFONT\n");
 673
 674                         myPrivate = (LPIMEPRIVATE)ImmLockIMCC(lpIMC->hPrivate);
 675                         if (myPrivate->textfont)
 676                         {
 677                             DeleteObject(myPrivate->textfont);
 678                             myPrivate->textfont = NULL;
 679                         }
 680                         myPrivate->textfont = CreateFontIndirectW(&lpIMC->lfFont.W);
 681                         ImmUnlockIMCC(lpIMC->hPrivate);
 682                     }
 683                     break;
 684                 case IMC_SETOPENSTATUS:
 685                 {
 686                     LPIMEPRIVATE myPrivate;
 687                     TRACE("IMC_SETOPENSTATUS\n");
 688
 689                     myPrivate = (LPIMEPRIVATE)ImmLockIMCC(lpIMC->hPrivate);
 690                     if (lpIMC->fOpen != myPrivate->bInternalState)
 691                     {
 692                         if(lpIMC->fOpen == FALSE)
 693                         {
 694                             X11DRV_ForceXIMReset(lpIMC->hWnd);
 695                             GenerateIMEMessage(hIMC,WM_IME_ENDCOMPOSITION,0,0);
 696                         }
 697                         else
 698                             GenerateIMEMessage(hIMC,WM_IME_STARTCOMPOSITION,0,0);
 699                     }
 700                     bRet = TRUE;
 701                 }
 702                 break;
 703                 default: FIXME("Unknown\n"); break;
 704             }
 705             break;
 706         case NI_COMPOSITIONSTR:
 707             TRACE("NI_COMPOSITIONSTR:");
 708             switch (dwIndex)
 709             {
 710                 case CPS_COMPLETE:
 711                 {
 712                     HIMCC newCompStr;
 713                     DWORD cplen = 0;
 714                     LPWSTR cpstr;
 715                     LPCOMPOSITIONSTRING cs = NULL;
 716                     LPBYTE cdata = NULL;
 717                     LPIMEPRIVATE myPrivate;
 718
 719                     TRACE("CPS_COMPLETE\n");
 720
 721                     /* clear existing result */
 722                     newCompStr = updateResultStr(lpIMC->hCompStr, NULL, 0);
 723
 724                     ImmDestroyIMCC(lpIMC->hCompStr);
 725                     lpIMC->hCompStr = newCompStr;
 726
 727                     if (lpIMC->hCompStr)
 728                     {
 729                         cdata = ImmLockIMCC(lpIMC->hCompStr);
 730                         cs = (LPCOMPOSITIONSTRING)cdata;
 731                         cplen = cs->dwCompStrLen;
 732                         cpstr = (LPWSTR)&(cdata[cs->dwCompStrOffset]);
 733                         ImmUnlockIMCC(lpIMC->hCompStr);
 734                     }
 735                     if (cplen > 0)
 736                     {
 737                         WCHAR param = cpstr[0];
 738
 739                         newCompStr = updateResultStr(lpIMC->hCompStr, cpstr, cplen);
 740                         ImmDestroyIMCC(lpIMC->hCompStr);
 741                         lpIMC->hCompStr = newCompStr;
 742                         newCompStr = updateCompStr(lpIMC->hCompStr, NULL, 0);
 743                         ImmDestroyIMCC(lpIMC->hCompStr);
 744                         lpIMC->hCompStr = newCompStr;
 745
 746                         GenerateIMEMessage(hIMC, WM_IME_COMPOSITION, 0,
 747                                                   GCS_COMPSTR);
 748
 749                         GenerateIMEMessage(hIMC, WM_IME_COMPOSITION, param,
 750                                             GCS_RESULTSTR|GCS_RESULTCLAUSE);
 751                     }
 752
 753                     GenerateIMEMessage(hIMC,WM_IME_ENDCOMPOSITION, 0, 0);
 754
 755                     myPrivate = (LPIMEPRIVATE)ImmLockIMCC(lpIMC->hPrivate);
 756                     myPrivate->bInComposition = FALSE;
 757                     ImmUnlockIMCC(lpIMC->hPrivate);
 758
 759                     bRet = TRUE;
 760                 }
 761                 break;
 762                 case CPS_CONVERT: FIXME("CPS_CONVERT\n"); break;
 763                 case CPS_REVERT: FIXME("CPS_REVERT\n"); break;
 764                 case CPS_CANCEL:
 765                 {
 766                     BOOL send;
 767                     LPCOMPOSITIONSTRING lpCompStr;
 768
 769                     TRACE("CPS_CANCEL\n");
 770
 771                     X11DRV_ForceXIMReset(lpIMC->hWnd);
 772
 773                     lpCompStr = ImmLockIMCC(lpIMC->hCompStr);
 774                     send = (lpCompStr->dwCompStrLen != 0);
 775                     ImmUnlockIMCC(lpIMC->hCompStr);
 776
 777                     if (send)
 778                     {
 779                         HIMCC newCompStr;
 780                         newCompStr = updateCompStr(lpIMC->hCompStr, NULL, 0);
 781                         ImmDestroyIMCC(lpIMC->hCompStr);
 782                         lpIMC->hCompStr = newCompStr;
 783                         GenerateIMEMessage(hIMC, WM_IME_COMPOSITION, 0, GCS_COMPSTR);
 784                     }
 785                     bRet = TRUE;
 786                 }
 787                 break;
 788                 default: FIXME("Unknown\n"); break;
 789             }
 790             break;
 791         default: FIXME("Unknown Message\n"); break;
 792     }
 793
 794     UnlockRealIMC(hIMC);
 795     return bRet;
 796 }
 797
 798 BOOL WINAPI ImeRegisterWord(LPCWSTR lpszReading, DWORD dwStyle,
 799                             LPCWSTR lpszRegister)
 800 {
 801     FIXME("(%s, %d, %s): stub\n", debugstr_w(lpszReading), dwStyle,
 802                                   debugstr_w(lpszRegister));
 803     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 804     return FALSE;
 805 }
 806
 807 BOOL WINAPI ImeUnregisterWord(LPCWSTR lpszReading, DWORD dwStyle,
 808                               LPCWSTR lpszUnregister)
 809 {
 810     FIXME("(%s, %d, %s): stub\n", debugstr_w(lpszReading), dwStyle,
 811                                   debugstr_w(lpszUnregister));
 812     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 813     return FALSE;
 814 }
 815
 816 UINT WINAPI ImeGetRegisterWordStyle(UINT nItem, LPSTYLEBUFW lpStyleBuf)
 817 {
 818     FIXME("(%d, %p): stub\n", nItem, lpStyleBuf);
 819     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 820     return 0;
 821 }
 822
 823 UINT WINAPI ImeEnumRegisterWord(REGISTERWORDENUMPROCW lpfnEnumProc,
 824                                 LPCWSTR lpszReading, DWORD dwStyle,
 825                                 LPCWSTR lpszRegister, LPVOID lpData)
 826 {
 827     FIXME("(%p, %s, %d, %s, %p): stub\n", lpfnEnumProc,
 828             debugstr_w(lpszReading), dwStyle, debugstr_w(lpszRegister),
 829             lpData);
 830     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 831     return 0;
 832 }
 833
 834 BOOL WINAPI ImeSetCompositionString(HIMC hIMC, DWORD dwIndex, LPCVOID lpComp,
 835                                     DWORD dwCompLen, LPCVOID lpRead,
 836                                     DWORD dwReadLen)
 837 {
 838     LPINPUTCONTEXT lpIMC;
 839     DWORD flags = 0;
 840     WCHAR wParam  = 0;
 841     LPIMEPRIVATE myPrivate;
 842
 843     TRACE("(%p, %d, %p, %d, %p, %d):\n",
 844          hIMC, dwIndex, lpComp, dwCompLen, lpRead, dwReadLen);
 845
 846
 847     if (hIMC != FROM_X11)
 848         FIXME("PROBLEM: This only sets the wine level string\n");
 849
 850     /*
 851     * Explanation:
 852     *  this sets the composition string in the imm32.dll level
 853     *  of the composition buffer. we cannot manipulate the xim level
 854     *  buffer, which means that once the xim level buffer changes again
 855     *  any call to this function from the application will be lost
 856     */
 857
 858     if (lpRead && dwReadLen)
 859         FIXME("Reading string unimplemented\n");
 860
 861     lpIMC = LockRealIMC(hIMC);
 862
 863     if (lpIMC == NULL)
 864         return FALSE;
 865
 866     myPrivate = (LPIMEPRIVATE)ImmLockIMCC(lpIMC->hPrivate);
 867
 868     if (dwIndex == SCS_SETSTR)
 869     {
 870         HIMCC newCompStr;
 871
 872         if (!myPrivate->bInComposition)
 873         {
 874             GenerateIMEMessage(hIMC, WM_IME_STARTCOMPOSITION, 0, 0);
 875             myPrivate->bInComposition = TRUE;
 876         }
 877
 878         flags = GCS_COMPSTR;
 879
 880         if (dwCompLen && lpComp)
 881         {
 882             newCompStr = updateCompStr(lpIMC->hCompStr, (LPWSTR)lpComp, dwCompLen / sizeof(WCHAR));
 883             ImmDestroyIMCC(lpIMC->hCompStr);
 884             lpIMC->hCompStr = newCompStr;
 885
 886              wParam = ((const WCHAR*)lpComp)[0];
 887              flags |= GCS_COMPCLAUSE | GCS_COMPATTR | GCS_DELTASTART;
 888         }
 889         else
 890         {
 891             newCompStr = updateCompStr(lpIMC->hCompStr, NULL, 0);
 892             ImmDestroyIMCC(lpIMC->hCompStr);
 893             lpIMC->hCompStr = newCompStr;
 894         }
 895     }
 896
 897     UpdateDataInDefaultIMEWindow(hIMC, myPrivate->hwndDefault,FALSE);
 898
 899     GenerateIMEMessage(hIMC, WM_IME_COMPOSITION, wParam, flags);
 900     ImmUnlockIMCC(lpIMC->hPrivate);
 901     UnlockRealIMC(hIMC);
 902
 903     return TRUE;
 904 }
 905
 906 DWORD WINAPI ImeGetImeMenuItems(HIMC hIMC,  DWORD dwFlags,  DWORD dwType,
 907             LPIMEMENUITEMINFOW lpImeParentMenu, LPIMEMENUITEMINFOW lpImeMenu,
 908             DWORD dwSize)
 909 {
 910     FIXME("(%p, %x %x %p %p %x): stub\n", hIMC, dwFlags, dwType,
 911                                 lpImeParentMenu, lpImeMenu, dwSize);
 912     SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
 913     return 0;
 914 }
 915
 916 /* Interfaces to XIM and other parts of winex11drv */
 917
 918 void IME_RegisterClasses(HINSTANCE hImeInst)
 919 {
 920     WNDCLASSW wndClass;
 921     ZeroMemory(&wndClass, sizeof(WNDCLASSW));
 922     wndClass.style = CS_GLOBALCLASS | CS_IME | CS_HREDRAW | CS_VREDRAW;
 923     wndClass.lpfnWndProc = (WNDPROC) IME_WindowProc;
 924     wndClass.cbClsExtra = 0;
 925     wndClass.cbWndExtra = 2 * sizeof(LONG);
 926     wndClass.hInstance = hImeInst;
 927     wndClass.hCursor = LoadCursorW(NULL, (LPWSTR)IDC_ARROW);
 928     wndClass.hIcon = LoadIconW(NULL, (LPWSTR)IDI_APPLICATION);
 929     wndClass.hbrBackground = (HBRUSH)(COLOR_WINDOW +1);
 930     wndClass.lpszMenuName   = 0;
 931     wndClass.lpszClassName = UI_CLASS_NAME;
 932
 933     RegisterClassW(&wndClass);
 934
 935     WM_MSIME_SERVICE = RegisterWindowMessageA("MSIMEService");
 936     WM_MSIME_RECONVERTOPTIONS = RegisterWindowMessageA("MSIMEReconvertOptions");
 937     WM_MSIME_MOUSE = RegisterWindowMessageA("MSIMEMouseOperation");
 938     WM_MSIME_RECONVERTREQUEST = RegisterWindowMessageA("MSIMEReconvertRequest");
 939     WM_MSIME_RECONVERT = RegisterWindowMessageA("MSIMEReconvert");
 940     WM_MSIME_QUERYPOSITION = RegisterWindowMessageA("MSIMEQueryPosition");
 941     WM_MSIME_DOCUMENTFEED = RegisterWindowMessageA("MSIMEDocumentFeed");
 942 }
 943
 944 void IME_UnregisterClasses(HINSTANCE hImeInst)
 945 {
 946     UnregisterClassW(UI_CLASS_NAME, hImeInst);
 947 }
 948
 949 void IME_SetOpenStatus(BOOL fOpen)
 950 {
 951     LPINPUTCONTEXT lpIMC;
 952     LPIMEPRIVATE myPrivate;
 953
 954     lpIMC = LockRealIMC(FROM_X11);
 955     if (lpIMC == NULL)
 956         return;
 957
 958     myPrivate = (LPIMEPRIVATE)ImmLockIMCC(lpIMC->hPrivate);
 959
 960     if (myPrivate->bInternalState && fOpen == FALSE)
 961     {
 962         ShowWindow(myPrivate->hwndDefault, SW_HIDE);
 963         ImmDestroyIMCC(lpIMC->hCompStr);
 964         lpIMC->hCompStr = ImeCreateBlankCompStr();
 965     }
 966     myPrivate->bInternalState = fOpen;
 967
 968     ImmUnlockIMCC(lpIMC->hPrivate);
 969     UnlockRealIMC(FROM_X11);
 970
 971     ImmSetOpenStatus(RealIMC(FROM_X11), fOpen);
 972 }
 973
 974 void IME_XIMPresent(BOOL present)
 975 {
 976     hXIMPresent  = present;
 977 }
 978
 979 LRESULT IME_SendMessageToSelectedHWND(UINT msg, WPARAM wParam, LPARAM lParam)
 980 {
 981     LPINPUTCONTEXT lpIMC;
 982     LRESULT rc = 0;
 983
 984     if (!hSelectedFrom)
 985         return rc;
 986
 987     lpIMC = LockRealIMC(FROM_X11);
 988     if (lpIMC)
 989         rc = SendMessageW(lpIMC->hWnd,msg,wParam,lParam);
 990
 991     UnlockRealIMC(FROM_X11);
 992     return rc;
 993 }
 994
 995 INT IME_GetCursorPos()
 996 {
 997     LPINPUTCONTEXT lpIMC;
 998     INT rc = 0;
 999     LPCOMPOSITIONSTRING compstr;
1000
1001     if (!hSelectedFrom)
1002         return rc;
1003
1004     lpIMC = LockRealIMC(FROM_X11);
1005     if (lpIMC)
1006     {
1007         compstr = (LPCOMPOSITIONSTRING)ImmLockIMCC(lpIMC->hCompStr);
1008         rc = compstr->dwCursorPos;
1009         ImmUnlockIMCC(lpIMC->hCompStr);
1010     }
1011     UnlockRealIMC(FROM_X11);
1012     return rc;
1013 }
1014
1015 void IME_SetCursorPos(DWORD pos)
1016 {
1017     LPINPUTCONTEXT lpIMC;
1018     LPCOMPOSITIONSTRING compstr;
1019
1020     if (!hSelectedFrom)
1021         return;
1022
1023     lpIMC = LockRealIMC(FROM_X11);
1024     if (!lpIMC)
1025         return;
1026
1027     compstr = (LPCOMPOSITIONSTRING)ImmLockIMCC(lpIMC->hCompStr);
1028     if (!compstr)
1029     {
1030         UnlockRealIMC(FROM_X11);
1031         return;
1032     }
1033
1034     compstr->dwCursorPos = pos;
1035     ImmUnlockIMCC(lpIMC->hCompStr);
1036     UnlockRealIMC(FROM_X11);
1037     GenerateIMEMessage(FROM_X11, WM_IME_COMPOSITION, pos, GCS_CURSORPOS);
1038     return;
1039 }
1040
1041 void IME_UpdateAssociation(HWND focus)
1042 {
1043     ImmGetContext(focus);
1044
1045     if (!focus || !hSelectedFrom)
1046         return;
1047
1048     ImmAssociateContext(focus,RealIMC(FROM_X11));
1049 }
1050
1051
1052 BOOL IME_SetCompositionString(DWORD dwIndex, LPCVOID lpComp, DWORD dwCompLen,
1053                               LPCVOID lpRead, DWORD dwReadLen)
1054 {
1055     return ImeSetCompositionString(FROM_X11, dwIndex, lpComp, dwCompLen,
1056                                     lpRead, dwReadLen);
1057 }
1058
1059 BOOL IME_NotifyIME(DWORD dwAction, DWORD dwIndex, DWORD dwValue)
1060 {
1061     return NotifyIME(FROM_X11, dwAction, dwIndex, dwValue);
1062 }
1063
1064 /*****
1065  * Internal functions to help with IME window management
1066  */
1067 static void PaintDefaultIMEWnd(HIMC hIMC, HWND hwnd)
1068 {
1069     PAINTSTRUCT ps;
1070     RECT rect;
1071     HDC hdc;
1072     LPCOMPOSITIONSTRING compstr;
1073     LPBYTE compdata = NULL;
1074     HMONITOR monitor;
1075     MONITORINFO mon_info;
1076     INT offX=0, offY=0;
1077     LPINPUTCONTEXT lpIMC;
1078
1079     lpIMC = LockRealIMC(hIMC);
1080     if (lpIMC == NULL)
1081         return;
1082
1083     hdc = BeginPaint(hwnd,&ps);
1084
1085     GetClientRect(hwnd,&rect);
1086     FillRect(hdc, &rect, (HBRUSH)(COLOR_WINDOW + 1));
1087
1088     compdata = ImmLockIMCC(lpIMC->hCompStr);
1089     compstr = (LPCOMPOSITIONSTRING)compdata;
1090
1091     if (compstr->dwCompStrLen && compstr->dwCompStrOffset)
1092     {
1093         SIZE size;
1094         POINT pt;
1095         HFONT oldfont = NULL;
1096         LPWSTR CompString;
1097         LPIMEPRIVATE myPrivate;
1098
1099         CompString = (LPWSTR)(compdata + compstr->dwCompStrOffset);
1100         myPrivate = (LPIMEPRIVATE)ImmLockIMCC(lpIMC->hPrivate);
1101
1102         if (myPrivate->textfont)
1103             oldfont = SelectObject(hdc,myPrivate->textfont);
1104
1105         ImmUnlockIMCC(lpIMC->hPrivate);
1106
1107         GetTextExtentPoint32W(hdc, CompString, compstr->dwCompStrLen, &size);
1108         pt.x = size.cx;
1109         pt.y = size.cy;
1110         LPtoDP(hdc,&pt,1);
1111
1112         /*
1113          * How this works based on tests on windows:
1114          * CFS_POINT: then we start our window at the point and grow it as large
1115          *    as it needs to be for the string.
1116          * CFS_RECT:  we still use the ptCurrentPos as a starting point and our
1117          *    window is only as large as we need for the string, but we do not
1118          *    grow such that our window exceeds the given rect.  Wrapping if
1119          *    needed and possible.   If our ptCurrentPos is outside of our rect
1120          *    then no window is displayed.
1121          * CFS_FORCE_POSITION: appears to behave just like CFS_POINT
1122          *    maybe becase the default MSIME does not do any IME adjusting.
1123          */
1124         if (lpIMC->cfCompForm.dwStyle != CFS_DEFAULT)
1125         {
1126             POINT cpt = lpIMC->cfCompForm.ptCurrentPos;
1127             ClientToScreen(lpIMC->hWnd,&cpt);
1128             rect.left = cpt.x;
1129             rect.top = cpt.y;
1130             rect.right = rect.left + pt.x;
1131             rect.bottom = rect.top + pt.y;
1132             monitor = MonitorFromPoint(cpt, MONITOR_DEFAULTTOPRIMARY);
1133         }
1134         else /* CFS_DEFAULT */
1135         {
1136             /* Windows places the default IME window in the bottom left */
1137             HWND target = lpIMC->hWnd;
1138             if (!target) target = GetFocus();
1139
1140             GetWindowRect(target,&rect);
1141             rect.top = rect.bottom;
1142             rect.right = rect.left + pt.x + 20;
1143             rect.bottom = rect.top + pt.y + 20;
1144             offX=offY=10;
1145             monitor = MonitorFromWindow(target, MONITOR_DEFAULTTOPRIMARY);
1146         }
1147
1148         if (lpIMC->cfCompForm.dwStyle == CFS_RECT)
1149         {
1150             RECT client;
1151             client =lpIMC->cfCompForm.rcArea;
1152             MapWindowPoints( lpIMC->hWnd, 0, (POINT *)&client, 2 );
1153             IntersectRect(&rect,&rect,&client);
1154             /* TODO:  Wrap the input if needed */
1155         }
1156
1157         if (lpIMC->cfCompForm.dwStyle == CFS_DEFAULT)
1158         {
1159             /* make sure we are on the desktop */
1160             mon_info.cbSize = sizeof(mon_info);
1161             GetMonitorInfoW(monitor, &mon_info);
1162
1163             if (rect.bottom > mon_info.rcWork.bottom)
1164             {
1165                 int shift = rect.bottom - mon_info.rcWork.bottom;
1166                 rect.top -= shift;
1167                 rect.bottom -= shift;
1168             }
1169             if (rect.left < 0)
1170             {
1171                 rect.right -= rect.left;
1172                 rect.left = 0;
1173             }
1174             if (rect.right > mon_info.rcWork.right)
1175             {
1176                 int shift = rect.right - mon_info.rcWork.right;
1177                 rect.left -= shift;
1178                 rect.right -= shift;
1179             }
1180         }
1181
1182         SetWindowPos(hwnd, HWND_TOPMOST, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, SWP_NOACTIVATE);
1183
1184         TextOutW(hdc, offX,offY, CompString, compstr->dwCompStrLen);
1185
1186         if (oldfont)
1187             SelectObject(hdc,oldfont);
1188     }
1189
1190     ImmUnlockIMCC(lpIMC->hCompStr);
1191
1192     EndPaint(hwnd,&ps);
1193     UnlockRealIMC(hIMC);
1194 }
1195
1196 static void UpdateDataInDefaultIMEWindow(HIMC hIMC, HWND hwnd, BOOL showable)
1197 {
1198     LPCOMPOSITIONSTRING compstr;
1199     LPINPUTCONTEXT lpIMC;
1200
1201     lpIMC = LockRealIMC(hIMC);
1202     if (lpIMC == NULL)
1203         return;
1204
1205     if (lpIMC->hCompStr)
1206         compstr = ImmLockIMCC(lpIMC->hCompStr);
1207     else
1208         compstr = NULL;
1209
1210     if (compstr == NULL || compstr->dwCompStrLen == 0)
1211         ShowWindow(hwnd,SW_HIDE);
1212     else if (showable)
1213         ShowWindow(hwnd,SW_SHOWNOACTIVATE);
1214
1215     RedrawWindow(hwnd,NULL,NULL,RDW_ERASENOW|RDW_INVALIDATE);
1216
1217     if (compstr != NULL)
1218         ImmUnlockIMCC(lpIMC->hCompStr);
1219
1220     UnlockRealIMC(hIMC);
1221 }
1222
1223 static void DefaultIMEComposition(HIMC hIMC, HWND hwnd, LPARAM lParam)
1224 {
1225     TRACE("IME message WM_IME_COMPOSITION 0x%lx\n", lParam);
1226     if (lParam & GCS_RESULTSTR)
1227     {
1228         LPCOMPOSITIONSTRING compstr;
1229         LPBYTE compdata;
1230         LPWSTR ResultStr;
1231         HIMCC newCompStr;
1232         LPINPUTCONTEXT lpIMC;
1233
1234         lpIMC = LockRealIMC(hIMC);
1235         if (lpIMC == NULL)
1236             return;
1237
1238         TRACE("Posting result as IME_CHAR\n");
1239         compdata = ImmLockIMCC(lpIMC->hCompStr);
1240         compstr = (LPCOMPOSITIONSTRING)compdata;
1241         ResultStr = (LPWSTR)(compdata + compstr->dwResultStrOffset);
1242         GenerateIMECHARMessages(hIMC, ResultStr, compstr->dwResultStrLen);
1243         ImmUnlockIMCC(lpIMC->hCompStr);
1244
1245         /* clear the buffer */
1246         newCompStr = updateResultStr(lpIMC->hCompStr, NULL, 0);
1247         ImmDestroyIMCC(lpIMC->hCompStr);
1248         lpIMC->hCompStr = newCompStr;
1249         UnlockRealIMC(hIMC);
1250     }
1251     else
1252          UpdateDataInDefaultIMEWindow(hIMC,hwnd,TRUE);
1253 }
1254
1255 static void DefaultIMEStartComposition(HIMC hIMC, HWND hwnd )
1256 {
1257     LPINPUTCONTEXT lpIMC;
1258
1259     lpIMC = LockRealIMC(hIMC);
1260     if (lpIMC == NULL)
1261         return;
1262
1263     TRACE("IME message WM_IME_STARTCOMPOSITION\n");
1264     lpIMC->hWnd = GetFocus();
1265     ShowWindow(hwnd,SW_SHOWNOACTIVATE);
1266     UnlockRealIMC(hIMC);
1267 }
1268
1269 static LRESULT ImeHandleNotify(HIMC hIMC, HWND hwnd, UINT msg, WPARAM wParam,
1270                                LPARAM lParam)
1271 {
1272     switch (wParam)
1273     {
1274         case IMN_OPENSTATUSWINDOW:
1275             FIXME("WM_IME_NOTIFY:IMN_OPENSTATUSWINDOW\n");
1276             break;
1277         case IMN_CLOSESTATUSWINDOW:
1278             FIXME("WM_IME_NOTIFY:IMN_CLOSESTATUSWINDOW\n");
1279             break;
1280         case IMN_OPENCANDIDATE:
1281             FIXME("WM_IME_NOTIFY:IMN_OPENCANDIDATE\n");
1282             break;
1283         case IMN_CHANGECANDIDATE:
1284             FIXME("WM_IME_NOTIFY:IMN_CHANGECANDIDATE\n");
1285             break;
1286         case IMN_CLOSECANDIDATE:
1287             FIXME("WM_IME_NOTIFY:IMN_CLOSECANDIDATE\n");
1288             break;
1289         case IMN_SETCONVERSIONMODE:
1290             FIXME("WM_IME_NOTIFY:IMN_SETCONVERSIONMODE\n");
1291             break;
1292         case IMN_SETSENTENCEMODE:
1293             FIXME("WM_IME_NOTIFY:IMN_SETSENTENCEMODE\n");
1294             break;
1295         case IMN_SETOPENSTATUS:
1296             FIXME("WM_IME_NOTIFY:IMN_SETOPENSTATUS\n");
1297             break;
1298         case IMN_SETCANDIDATEPOS:
1299             FIXME("WM_IME_NOTIFY:IMN_SETCANDIDATEPOS\n");
1300             break;
1301         case IMN_SETCOMPOSITIONFONT:
1302             FIXME("WM_IME_NOTIFY:IMN_SETCOMPOSITIONFONT\n");
1303             break;
1304         case IMN_SETCOMPOSITIONWINDOW:
1305             FIXME("WM_IME_NOTIFY:IMN_SETCOMPOSITIONWINDOW\n");
1306             break;
1307         case IMN_GUIDELINE:
1308             FIXME("WM_IME_NOTIFY:IMN_GUIDELINE\n");
1309             break;
1310         case IMN_SETSTATUSWINDOWPOS:
1311             FIXME("WM_IME_NOTIFY:IMN_SETSTATUSWINDOWPOS\n");
1312             break;
1313         default:
1314             FIXME("WM_IME_NOTIFY:<Unknown 0x%lx>\n",wParam);
1315             break;
1316     }
1317     return 0;
1318 }
1319
1320 static LRESULT WINAPI IME_WindowProc(HWND hwnd, UINT msg, WPARAM wParam,
1321                                           LPARAM lParam)
1322 {
1323     LRESULT rc = 0;
1324     HIMC    hIMC;
1325
1326     TRACE("Incoming Message 0x%x  (0x%08lx, 0x%08lx)\n", msg, wParam, lParam);
1327
1328     /*
1329      * Each UI window contains the current Input Context.
1330      * This Input Context can be obtained by calling GetWindowLong
1331      * with IMMGWL_IMC when the UI window receives a WM_IME_xxx message.
1332      * The UI window can refer to this Input Context and handles the
1333      * messages.
1334      */
1335
1336     hIMC = (HIMC)GetWindowLongW(hwnd,IMMGWL_IMC);
1337     if (!hIMC)
1338         hIMC = RealIMC(FROM_X11);
1339
1340     /* if we have no hIMC there are many messages we cannot process */
1341     if (hIMC == NULL)
1342     {
1343         switch (msg) {
1344         case WM_IME_STARTCOMPOSITION:
1345         case WM_IME_ENDCOMPOSITION:
1346         case WM_IME_COMPOSITION:
1347         case WM_IME_NOTIFY:
1348         case WM_IME_CONTROL:
1349         case WM_IME_COMPOSITIONFULL:
1350         case WM_IME_SELECT:
1351         case WM_IME_CHAR:
1352             return 0L;
1353         default:
1354             break;
1355         }
1356     }
1357
1358     switch(msg)
1359     {
1360         case WM_CREATE:
1361         {
1362             LPIMEPRIVATE myPrivate;
1363             LPINPUTCONTEXT lpIMC;
1364
1365             SetWindowTextA(hwnd,"Wine Ime Active");
1366
1367             lpIMC = LockRealIMC(hIMC);
1368             if (lpIMC)
1369             {
1370                 myPrivate = (LPIMEPRIVATE)ImmLockIMCC(lpIMC->hPrivate);
1371                 myPrivate->hwndDefault = hwnd;
1372                 ImmUnlockIMCC(lpIMC->hPrivate);
1373             }
1374             UnlockRealIMC(hIMC);
1375
1376             return TRUE;
1377         }
1378         case WM_PAINT:
1379             PaintDefaultIMEWnd(hIMC, hwnd);
1380             return FALSE;
1381
1382         case WM_NCCREATE:
1383             return TRUE;
1384
1385         case WM_SETFOCUS:
1386             if (wParam)
1387                 SetFocus((HWND)wParam);
1388             else
1389                 FIXME("Received focus, should never have focus\n");
1390             break;
1391         case WM_IME_COMPOSITION:
1392             DefaultIMEComposition(hIMC, hwnd, lParam);
1393             break;
1394         case WM_IME_STARTCOMPOSITION:
1395             DefaultIMEStartComposition(hIMC, hwnd);
1396             break;
1397         case WM_IME_ENDCOMPOSITION:
1398             TRACE("IME message %s, 0x%lx, 0x%lx\n",
1399                     "WM_IME_ENDCOMPOSITION", wParam, lParam);
1400             ShowWindow(hwnd,SW_HIDE);
1401             break;
1402         case WM_IME_SELECT:
1403             TRACE("IME message %s, 0x%lx, 0x%lx\n","WM_IME_SELECT", wParam, lParam);
1404             break;
1405         case WM_IME_CONTROL:
1406             TRACE("IME message %s, 0x%lx, 0x%lx\n","WM_IME_CONTROL", wParam, lParam);
1407             rc = 1;
1408             break;
1409         case WM_IME_NOTIFY:
1410             rc = ImeHandleNotify(hIMC,hwnd,msg,wParam,lParam);
1411             break;
1412        default:
1413             TRACE("Non-standard message 0x%x\n",msg);
1414     }
1415     /* check the MSIME messages */
1416     if (msg == WM_MSIME_SERVICE)
1417     {
1418             TRACE("IME message %s, 0x%lx, 0x%lx\n","WM_MSIME_SERVICE", wParam, lParam);
1419             rc = FALSE;
1420     }
1421     else if (msg == WM_MSIME_RECONVERTOPTIONS)
1422     {
1423             TRACE("IME message %s, 0x%lx, 0x%lx\n","WM_MSIME_RECONVERTOPTIONS", wParam, lParam);
1424     }
1425     else if (msg == WM_MSIME_MOUSE)
1426     {
1427             TRACE("IME message %s, 0x%lx, 0x%lx\n","WM_MSIME_MOUSE", wParam, lParam);
1428     }
1429     else if (msg == WM_MSIME_RECONVERTREQUEST)
1430     {
1431             TRACE("IME message %s, 0x%lx, 0x%lx\n","WM_MSIME_RECONVERTREQUEST", wParam, lParam);
1432     }
1433     else if (msg == WM_MSIME_RECONVERT)
1434     {
1435             TRACE("IME message %s, 0x%lx, 0x%lx\n","WM_MSIME_RECONVERT", wParam, lParam);
1436     }
1437     else if (msg == WM_MSIME_QUERYPOSITION)
1438     {
1439             TRACE("IME message %s, 0x%lx, 0x%lx\n","WM_MSIME_QUERYPOSITION", wParam, lParam);
1440     }
1441     else if (msg == WM_MSIME_DOCUMENTFEED)
1442     {
1443             TRACE("IME message %s, 0x%lx, 0x%lx\n","WM_MSIME_DOCUMENTFEED", wParam, lParam);
1444     }
1445     /* DefWndProc if not an IME message */
1446     if (!rc && !((msg >= WM_IME_STARTCOMPOSITION && msg <= WM_IME_KEYLAST) ||
1447                       (msg >= WM_IME_SETCONTEXT && msg <= WM_IME_KEYUP)))
1448         rc = DefWindowProcW(hwnd,msg,wParam,lParam);
1449
1450     return rc;
1451 }