dlls/riched20/tests/txtsrv.c

   1 /*
   2  * Unit test suite for windowless rich edit controls
   3  *
   4  * Copyright 2008 Maarten Lankhorst
   5  * Copyright 2008 Austin Lund
   6  * Copyright 2008 Dylan Smith
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 #define COBJMACROS
  24 #define CONST_VTABLE
  25
  26 #include <stdio.h>
  27 #include <stdarg.h>
  28 #include <windef.h>
  29 #include <winbase.h>
  30 #include <objbase.h>
  31 #include <richedit.h>
  32 #include <initguid.h>
  33 #include <textserv.h>
  34 #include <wine/test.h>
  35 #include <oleauto.h>
  36 #include <limits.h>
  37
  38 static HMODULE hmoduleRichEdit;
  39 static IID *pIID_ITextServices;
  40 static IID *pIID_ITextHost;
  41 static IID *pIID_ITextHost2;
  42 static PCreateTextServices pCreateTextServices;
  43
  44 static const char *debugstr_guid(REFIID riid)
  45 {
  46     static char buf[50];
  47
  48     if(!riid)
  49         return "(null)";
  50
  51     sprintf(buf, "{%08X-%04X-%04X-%02X%02X-%02X%02X%02X%02X%02X%02X}",
  52             riid->Data1, riid->Data2, riid->Data3, riid->Data4[0],
  53             riid->Data4[1], riid->Data4[2], riid->Data4[3], riid->Data4[4],
  54             riid->Data4[5], riid->Data4[6], riid->Data4[7]);
  55
  56     return buf;
  57 }
  58
  59 /* Define C Macros for ITextServices calls. */
  60
  61 /* Use a special table for x86 machines to convert the thiscall
  62  * calling convention.  This isn't needed on other platforms. */
  63 #ifdef __i386__
  64 static ITextServicesVtbl itextServicesStdcallVtbl;
  65 #define TXTSERV_VTABLE(This) (&itextServicesStdcallVtbl)
  66 #else /* __i386__ */
  67 #define TXTSERV_VTABLE(This) (This)->lpVtbl
  68 #endif /* __i386__ */
  69
  70 #define ITextServices_TxSendMessage(This,a,b,c,d) TXTSERV_VTABLE(This)->TxSendMessage(This,a,b,c,d)
  71 #define ITextServices_TxDraw(This,a,b,c,d,e,f,g,h,i,j,k,l) TXTSERV_VTABLE(This)->TxDraw(This,a,b,c,d,e,f,g,h,i,j,k,l)
  72 #define ITextServices_TxGetHScroll(This,a,b,c,d,e) TXTSERV_VTABLE(This)->TxGetHScroll(This,a,b,c,d,e)
  73 #define ITextServices_TxGetVScroll(This,a,b,c,d,e) TXTSERV_VTABLE(This)->TxGetVScroll(This,a,b,c,d,e)
  74 #define ITextServices_OnTxSetCursor(This,a,b,c,d,e,f,g,h,i) TXTSERV_VTABLE(This)->OnTxSetCursor(This,a,b,c,d,e,f,g,h,i)
  75 #define ITextServices_TxQueryHitPoint(This,a,b,c,d,e,f,g,h,i,j) TXTSERV_VTABLE(This)->TxQueryHitPoint(This,a,b,c,d,e,f,g,h,i,j)
  76 #define ITextServices_OnTxInplaceActivate(This,a) TXTSERV_VTABLE(This)->OnTxInplaceActivate(This,a)
  77 #define ITextServices_OnTxInplaceDeactivate(This) TXTSERV_VTABLE(This)->OnTxInplaceDeactivate(This)
  78 #define ITextServices_OnTxUIActivate(This) TXTSERV_VTABLE(This)->OnTxUIActivate(This)
  79 #define ITextServices_OnTxUIDeactivate(This) TXTSERV_VTABLE(This)->OnTxUIDeactivate(This)
  80 #define ITextServices_TxGetText(This,a) TXTSERV_VTABLE(This)->TxGetText(This,a)
  81 #define ITextServices_TxSetText(This,a) TXTSERV_VTABLE(This)->TxSetText(This,a)
  82 #define ITextServices_TxGetCurrentTargetX(This,a) TXTSERV_VTABLE(This)->TxGetCurrentTargetX(This,a)
  83 #define ITextServices_TxGetBaseLinePos(This,a) TXTSERV_VTABLE(This)->TxGetBaseLinePos(This,a)
  84 #define ITextServices_TxGetNaturalSize(This,a,b,c,d,e,f,g,h) TXTSERV_VTABLE(This)->TxGetNaturalSize(This,a,b,c,d,e,f,g,h)
  85 #define ITextServices_TxGetDropTarget(This,a) TXTSERV_VTABLE(This)->TxGetDropTarget(This,a)
  86 #define ITextServices_OnTxPropertyBitsChange(This,a,b) TXTSERV_VTABLE(This)->OnTxPropertyBitsChange(This,a,b)
  87 #define ITextServices_TxGetCachedSize(This,a,b) TXTSERV_VTABLE(This)->TxGetCachedSize(This,a,b)
  88
  89 /* Set the WINETEST_DEBUG environment variable to be greater than 1 for verbose
  90  * function call traces of ITextHost. */
  91 #define TRACECALL if(winetest_debug > 1) trace
  92
  93 /************************************************************************/
  94 /* ITextHost implementation for conformance testing. */
  95
  96 typedef struct ITextHostTestImpl
  97 {
  98     ITextHost ITextHost_iface;
  99     LONG refCount;
 100 } ITextHostTestImpl;
 101
 102 static inline ITextHostTestImpl *impl_from_ITextHost(ITextHost *iface)
 103 {
 104     return CONTAINING_RECORD(iface, ITextHostTestImpl, ITextHost_iface);
 105 }
 106
 107 static HRESULT WINAPI ITextHostImpl_QueryInterface(ITextHost *iface,
 108                                                    REFIID riid,
 109                                                    LPVOID *ppvObject)
 110 {
 111     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 112
 113     if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, pIID_ITextHost)) {
 114         *ppvObject = This;
 115         ITextHost_AddRef((ITextHost *)*ppvObject);
 116         return S_OK;
 117     }
 118
 119     return E_NOINTERFACE;
 120 }
 121
 122 static ULONG WINAPI ITextHostImpl_AddRef(ITextHost *iface)
 123 {
 124     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 125     ULONG refCount = InterlockedIncrement(&This->refCount);
 126     return refCount;
 127 }
 128
 129 static ULONG WINAPI ITextHostImpl_Release(ITextHost *iface)
 130 {
 131     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 132     ULONG refCount = InterlockedDecrement(&This->refCount);
 133
 134     if (!refCount)
 135     {
 136         CoTaskMemFree(This);
 137         return 0;
 138     } else {
 139         return refCount;
 140     }
 141 }
 142
 143 static HDC WINAPI ITextHostImpl_TxGetDC(ITextHost *iface)
 144 {
 145     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 146     TRACECALL("Call to TxGetDC(%p)\n", This);
 147     return NULL;
 148 }
 149
 150 static INT WINAPI ITextHostImpl_TxReleaseDC(ITextHost *iface,
 151                                             HDC hdc)
 152 {
 153     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 154     TRACECALL("Call to TxReleaseDC(%p)\n", This);
 155     return 0;
 156 }
 157
 158 static BOOL WINAPI ITextHostImpl_TxShowScrollBar(ITextHost *iface,
 159                                                  INT fnBar,
 160                                                  BOOL fShow)
 161 {
 162     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 163     TRACECALL("Call to TxShowScrollBar(%p, fnBar=%d, fShow=%d)\n",
 164                 This, fnBar, fShow);
 165     return FALSE;
 166 }
 167
 168 static BOOL WINAPI ITextHostImpl_TxEnableScrollBar(ITextHost *iface,
 169                                                    INT fuSBFlags,
 170                                                    INT fuArrowflags)
 171 {
 172     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 173     TRACECALL("Call to TxEnableScrollBar(%p, fuSBFlags=%d, fuArrowflags=%d)\n",
 174                This, fuSBFlags, fuArrowflags);
 175     return FALSE;
 176 }
 177
 178 static BOOL WINAPI ITextHostImpl_TxSetScrollRange(ITextHost *iface,
 179                                                   INT fnBar,
 180                                                   LONG nMinPos,
 181                                                   INT nMaxPos,
 182                                                   BOOL fRedraw)
 183 {
 184     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 185     TRACECALL("Call to TxSetScrollRange(%p, fnBar=%d, nMinPos=%d, nMaxPos=%d, fRedraw=%d)\n",
 186                This, fnBar, nMinPos, nMaxPos, fRedraw);
 187     return FALSE;
 188 }
 189
 190 static BOOL WINAPI ITextHostImpl_TxSetScrollPos(ITextHost *iface,
 191                                                 INT fnBar,
 192                                                 INT nPos,
 193                                                 BOOL fRedraw)
 194 {
 195     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 196     TRACECALL("Call to TxSetScrollPos(%p, fnBar=%d, nPos=%d, fRedraw=%d)\n",
 197                This, fnBar, nPos, fRedraw);
 198     return FALSE;
 199 }
 200
 201 static void WINAPI ITextHostImpl_TxInvalidateRect(ITextHost *iface,
 202                                                   LPCRECT prc,
 203                                                   BOOL fMode)
 204 {
 205     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 206     TRACECALL("Call to TxInvalidateRect(%p, prc=%p, fMode=%d)\n",
 207                This, prc, fMode);
 208 }
 209
 210 static void WINAPI ITextHostImpl_TxViewChange(ITextHost *iface, BOOL fUpdate)
 211 {
 212     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 213     TRACECALL("Call to TxViewChange(%p, fUpdate=%d)\n",
 214                This, fUpdate);
 215 }
 216
 217 static BOOL WINAPI ITextHostImpl_TxCreateCaret(ITextHost *iface,
 218                                                HBITMAP hbmp,
 219                                                INT xWidth, INT yHeight)
 220 {
 221     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 222     TRACECALL("Call to TxCreateCaret(%p, nbmp=%p, xWidth=%d, yHeight=%d)\n",
 223                This, hbmp, xWidth, yHeight);
 224     return FALSE;
 225 }
 226
 227 static BOOL WINAPI ITextHostImpl_TxShowCaret(ITextHost *iface, BOOL fShow)
 228 {
 229     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 230     TRACECALL("Call to TxShowCaret(%p, fShow=%d)\n",
 231                This, fShow);
 232     return FALSE;
 233 }
 234
 235 static BOOL WINAPI ITextHostImpl_TxSetCaretPos(ITextHost *iface,
 236                                                INT x, INT y)
 237 {
 238     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 239     TRACECALL("Call to TxSetCaretPos(%p, x=%d, y=%d)\n", This, x, y);
 240     return FALSE;
 241 }
 242
 243 static BOOL WINAPI ITextHostImpl_TxSetTimer(ITextHost *iface,
 244                                             UINT idTimer, UINT uTimeout)
 245 {
 246     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 247     TRACECALL("Call to TxSetTimer(%p, idTimer=%u, uTimeout=%u)\n",
 248               This, idTimer, uTimeout);
 249     return FALSE;
 250 }
 251
 252 static void WINAPI ITextHostImpl_TxKillTimer(ITextHost *iface, UINT idTimer)
 253 {
 254     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 255     TRACECALL("Call to TxKillTimer(%p, idTimer=%u)\n", This, idTimer);
 256 }
 257
 258 static void WINAPI ITextHostImpl_TxScrollWindowEx(ITextHost *iface,
 259                                                   INT dx, INT dy,
 260                                                   LPCRECT lprcScroll,
 261                                                   LPCRECT lprcClip,
 262                                                   HRGN hRgnUpdate,
 263                                                   LPRECT lprcUpdate,
 264                                                   UINT fuScroll)
 265 {
 266     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 267     TRACECALL("Call to TxScrollWindowEx(%p, %d, %d, %p, %p, %p, %p, %d)\n",
 268               This, dx, dy, lprcScroll, lprcClip, hRgnUpdate, lprcUpdate, fuScroll);
 269 }
 270
 271 static void WINAPI ITextHostImpl_TxSetCapture(ITextHost *iface, BOOL fCapture)
 272 {
 273     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 274     TRACECALL("Call to TxSetCapture(%p, fCapture=%d)\n", This, fCapture);
 275 }
 276
 277 static void WINAPI ITextHostImpl_TxSetFocus(ITextHost *iface)
 278 {
 279     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 280     TRACECALL("Call to TxSetFocus(%p)\n", This);
 281 }
 282
 283 static void WINAPI ITextHostImpl_TxSetCursor(ITextHost *iface,
 284                                              HCURSOR hcur,
 285                                              BOOL fText)
 286 {
 287     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 288     TRACECALL("Call to TxSetCursor(%p, hcur=%p, fText=%d)\n",
 289               This, hcur, fText);
 290 }
 291
 292 static BOOL WINAPI ITextHostImpl_TxScreenToClient(ITextHost *iface,
 293                                                   LPPOINT lppt)
 294 {
 295     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 296     TRACECALL("Call to TxScreenToClient(%p, lppt=%p)\n", This, lppt);
 297     return FALSE;
 298 }
 299
 300 static BOOL WINAPI ITextHostImpl_TxClientToScreen(ITextHost *iface,
 301                                                   LPPOINT lppt)
 302 {
 303     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 304     TRACECALL("Call to TxClientToScreen(%p, lppt=%p)\n", This, lppt);
 305     return FALSE;
 306 }
 307
 308 static HRESULT WINAPI ITextHostImpl_TxActivate(ITextHost *iface,
 309                                                LONG *plOldState)
 310 {
 311     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 312     TRACECALL("Call to TxActivate(%p, plOldState=%p)\n", This, plOldState);
 313     return E_NOTIMPL;
 314 }
 315
 316 static HRESULT WINAPI ITextHostImpl_TxDeactivate(ITextHost *iface,
 317                                                  LONG lNewState)
 318 {
 319     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 320     TRACECALL("Call to TxDeactivate(%p, lNewState=%d)\n", This, lNewState);
 321     return E_NOTIMPL;
 322 }
 323
 324 static HRESULT WINAPI ITextHostImpl_TxGetClientRect(ITextHost *iface,
 325                                                     LPRECT prc)
 326 {
 327     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 328     TRACECALL("Call to TxGetClientRect(%p, prc=%p)\n", This, prc);
 329     return E_NOTIMPL;
 330 }
 331
 332 static HRESULT WINAPI ITextHostImpl_TxGetViewInset(ITextHost *iface,
 333                                                    LPRECT prc)
 334 {
 335     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 336     TRACECALL("Call to TxGetViewInset(%p, prc=%p)\n", This, prc);
 337     return E_NOTIMPL;
 338 }
 339
 340 static HRESULT WINAPI ITextHostImpl_TxGetCharFormat(ITextHost *iface,
 341                                                     const CHARFORMATW **ppCF)
 342 {
 343     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 344     TRACECALL("Call to TxGetCharFormat(%p, ppCF=%p)\n", This, ppCF);
 345     return E_NOTIMPL;
 346 }
 347
 348 static HRESULT WINAPI ITextHostImpl_TxGetParaFormat(ITextHost *iface,
 349                                                     const PARAFORMAT **ppPF)
 350 {
 351     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 352     TRACECALL("Call to TxGetParaFormat(%p, ppPF=%p)\n", This, ppPF);
 353     return E_NOTIMPL;
 354 }
 355
 356 static COLORREF WINAPI ITextHostImpl_TxGetSysColor(ITextHost *iface,
 357                                                    int nIndex)
 358 {
 359     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 360     TRACECALL("Call to TxGetSysColor(%p, nIndex=%d)\n", This, nIndex);
 361     return E_NOTIMPL;
 362 }
 363
 364 static HRESULT WINAPI ITextHostImpl_TxGetBackStyle(ITextHost *iface,
 365                                                    TXTBACKSTYLE *pStyle)
 366 {
 367     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 368     TRACECALL("Call to TxGetBackStyle(%p, pStyle=%p)\n", This, pStyle);
 369     return E_NOTIMPL;
 370 }
 371
 372 static HRESULT WINAPI ITextHostImpl_TxGetMaxLength(ITextHost *iface,
 373                                                    DWORD *pLength)
 374 {
 375     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 376     TRACECALL("Call to TxGetMaxLength(%p, pLength=%p)\n", This, pLength);
 377     return E_NOTIMPL;
 378 }
 379
 380 static HRESULT WINAPI ITextHostImpl_TxGetScrollBars(ITextHost *iface,
 381                                                     DWORD *pdwScrollBar)
 382 {
 383     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 384     TRACECALL("Call to TxGetScrollBars(%p, pdwScrollBar=%p)\n",
 385                This, pdwScrollBar);
 386     return E_NOTIMPL;
 387 }
 388
 389 static HRESULT WINAPI ITextHostImpl_TxGetPasswordChar(ITextHost *iface,
 390                                                       WCHAR *pch)
 391 {
 392     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 393     TRACECALL("Call to TxGetPasswordChar(%p, pch=%p)\n", This, pch);
 394     return E_NOTIMPL;
 395 }
 396
 397 static HRESULT WINAPI ITextHostImpl_TxGetAcceleratorPos(ITextHost *iface,
 398                                                         LONG *pch)
 399 {
 400     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 401     TRACECALL("Call to TxGetAcceleratorPos(%p, pch=%p)\n", This, pch);
 402     return E_NOTIMPL;
 403 }
 404
 405 static HRESULT WINAPI ITextHostImpl_TxGetExtent(ITextHost *iface,
 406                                                 LPSIZEL lpExtent)
 407 {
 408     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 409     TRACECALL("Call to TxGetExtent(%p, lpExtent=%p)\n", This, lpExtent);
 410     return E_NOTIMPL;
 411 }
 412
 413 static HRESULT WINAPI ITextHostImpl_OnTxCharFormatChange(ITextHost *iface,
 414                                                          const CHARFORMATW *pcf)
 415 {
 416     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 417     TRACECALL("Call to OnTxCharFormatChange(%p, pcf=%p)\n", This, pcf);
 418     return E_NOTIMPL;
 419 }
 420
 421 static HRESULT WINAPI ITextHostImpl_OnTxParaFormatChange(ITextHost *iface,
 422                                                          const PARAFORMAT *ppf)
 423 {
 424     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 425     TRACECALL("Call to OnTxParaFormatChange(%p, ppf=%p)\n", This, ppf);
 426     return E_NOTIMPL;
 427 }
 428
 429 /* This must return S_OK for the native ITextServices object to
 430    initialize. */
 431 static HRESULT WINAPI ITextHostImpl_TxGetPropertyBits(ITextHost *iface,
 432                                                       DWORD dwMask,
 433                                                       DWORD *pdwBits)
 434 {
 435     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 436     TRACECALL("Call to TxGetPropertyBits(%p, dwMask=0x%08x, pdwBits=%p)\n",
 437               This, dwMask, pdwBits);
 438     *pdwBits = 0;
 439     return S_OK;
 440 }
 441
 442 static HRESULT WINAPI ITextHostImpl_TxNotify(ITextHost *iface, DWORD iNotify,
 443                                              void *pv)
 444 {
 445     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 446     TRACECALL("Call to TxNotify(%p, iNotify=%d, pv=%p)\n", This, iNotify, pv);
 447     return E_NOTIMPL;
 448 }
 449
 450 static HIMC WINAPI ITextHostImpl_TxImmGetContext(ITextHost *iface)
 451 {
 452     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 453     TRACECALL("Call to TxImmGetContext(%p)\n", This);
 454     return 0;
 455 }
 456
 457 static void WINAPI ITextHostImpl_TxImmReleaseContext(ITextHost *iface, HIMC himc)
 458 {
 459     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 460     TRACECALL("Call to TxImmReleaseContext(%p, himc=%p)\n", This, himc);
 461 }
 462
 463 /* This function must set the variable pointed to by *lSelBarWidth.
 464    Otherwise an uninitialized value will be used to calculate
 465    positions and sizes even if E_NOTIMPL is returned. */
 466 static HRESULT WINAPI ITextHostImpl_TxGetSelectionBarWidth(ITextHost *iface,
 467                                                            LONG *lSelBarWidth)
 468 {
 469     ITextHostTestImpl *This = impl_from_ITextHost(iface);
 470     TRACECALL("Call to TxGetSelectionBarWidth(%p, lSelBarWidth=%p)\n",
 471                 This, lSelBarWidth);
 472     *lSelBarWidth = 0;
 473     return E_NOTIMPL;
 474 }
 475
 476 static ITextHostVtbl itextHostVtbl = {
 477     ITextHostImpl_QueryInterface,
 478     ITextHostImpl_AddRef,
 479     ITextHostImpl_Release,
 480     ITextHostImpl_TxGetDC,
 481     ITextHostImpl_TxReleaseDC,
 482     ITextHostImpl_TxShowScrollBar,
 483     ITextHostImpl_TxEnableScrollBar,
 484     ITextHostImpl_TxSetScrollRange,
 485     ITextHostImpl_TxSetScrollPos,
 486     ITextHostImpl_TxInvalidateRect,
 487     ITextHostImpl_TxViewChange,
 488     ITextHostImpl_TxCreateCaret,
 489     ITextHostImpl_TxShowCaret,
 490     ITextHostImpl_TxSetCaretPos,
 491     ITextHostImpl_TxSetTimer,
 492     ITextHostImpl_TxKillTimer,
 493     ITextHostImpl_TxScrollWindowEx,
 494     ITextHostImpl_TxSetCapture,
 495     ITextHostImpl_TxSetFocus,
 496     ITextHostImpl_TxSetCursor,
 497     ITextHostImpl_TxScreenToClient,
 498     ITextHostImpl_TxClientToScreen,
 499     ITextHostImpl_TxActivate,
 500     ITextHostImpl_TxDeactivate,
 501     ITextHostImpl_TxGetClientRect,
 502     ITextHostImpl_TxGetViewInset,
 503     ITextHostImpl_TxGetCharFormat,
 504     ITextHostImpl_TxGetParaFormat,
 505     ITextHostImpl_TxGetSysColor,
 506     ITextHostImpl_TxGetBackStyle,
 507     ITextHostImpl_TxGetMaxLength,
 508     ITextHostImpl_TxGetScrollBars,
 509     ITextHostImpl_TxGetPasswordChar,
 510     ITextHostImpl_TxGetAcceleratorPos,
 511     ITextHostImpl_TxGetExtent,
 512     ITextHostImpl_OnTxCharFormatChange,
 513     ITextHostImpl_OnTxParaFormatChange,
 514     ITextHostImpl_TxGetPropertyBits,
 515     ITextHostImpl_TxNotify,
 516     ITextHostImpl_TxImmGetContext,
 517     ITextHostImpl_TxImmReleaseContext,
 518     ITextHostImpl_TxGetSelectionBarWidth
 519 };
 520
 521 static ITextServices *txtserv = NULL;
 522 static ITextHostTestImpl *dummyTextHost;
 523 static void *wrapperCodeMem = NULL;
 524
 525 #include "pshpack1.h"
 526
 527 /* Code structure for x86 byte code */
 528 typedef struct
 529 {
 530     BYTE pop_eax;  /* popl  %eax  */
 531     BYTE push_ecx; /* pushl %ecx  */
 532     BYTE push_eax; /* pushl %eax  */
 533     BYTE jmp_func; /* jmp   $func */
 534     DWORD func;
 535 } THISCALL_TO_STDCALL_THUNK;
 536
 537 typedef struct
 538 {
 539     BYTE pop_eax;               /* popl  %eax */
 540     BYTE pop_ecx;               /* popl  %ecx */
 541     BYTE push_eax;              /* pushl %eax */
 542     BYTE mov_vtable_eax[2];     /* movl (%ecx), %eax */
 543     BYTE jmp_eax[2];            /* jmp *$vtablefunc_offset(%eax) */
 544     int  vtablefunc_offset;
 545 } STDCALL_TO_THISCALL_THUNK;
 546
 547 #include "poppack.h"
 548
 549 static void setup_thiscall_wrappers(void)
 550 {
 551 #ifdef __i386__
 552     void** pVtable;
 553     void** pVtableEnd;
 554     THISCALL_TO_STDCALL_THUNK *thunk;
 555     STDCALL_TO_THISCALL_THUNK *thunk2;
 556
 557     wrapperCodeMem = VirtualAlloc(NULL,
 558                                   (sizeof(ITextHostVtbl)/sizeof(void*) - 3)
 559                                     * sizeof(THISCALL_TO_STDCALL_THUNK)
 560                                   +(sizeof(ITextServicesVtbl)/sizeof(void*) - 3)
 561                                     * sizeof(STDCALL_TO_THISCALL_THUNK),
 562                                   MEM_COMMIT, PAGE_EXECUTE_READWRITE);
 563     thunk = wrapperCodeMem;
 564
 565     /* Wrap all ITextHostImpl methods with code to perform a thiscall to
 566      * stdcall conversion. The thiscall calling convention places the This
 567      * pointer in ecx on the x86 platform, and the stdcall calling convention
 568      * pushes the This pointer on the stack as the first argument.
 569      *
 570      * The byte code does the conversion then jumps to the real function.
 571      *
 572      * Each wrapper needs to be modified so that the function to jump to is
 573      * modified in the byte code. */
 574
 575     /* Skip QueryInterface, AddRef, and Release native actually
 576      * defined them with the stdcall calling convention. */
 577     pVtable = (void**)&itextHostVtbl + 3;
 578     pVtableEnd = (void**)(&itextHostVtbl + 1);
 579     while (pVtable != pVtableEnd) {
 580         /* write byte code to executable memory */
 581         thunk->pop_eax = 0x58;  /* popl  %eax  */
 582         thunk->push_ecx = 0x51; /* pushl %ecx  */
 583         thunk->push_eax = 0x50; /* pushl %eax  */
 584         thunk->jmp_func = 0xe9; /* jmp   $func */
 585         /* The address needs to be relative to the end of the jump instructions. */
 586         thunk->func = (char*)*pVtable - (char*)(&thunk->func + 1);
 587         *pVtable = thunk;
 588         pVtable++;
 589         thunk++;
 590     }
 591
 592     /* Setup an ITextServices standard call vtable that will call the
 593      * native thiscall vtable when the methods are called. */
 594
 595     /* QueryInterface, AddRef, and Release should be called directly on the
 596      * real vtable since they use the stdcall calling convention. */
 597     thunk2 = (STDCALL_TO_THISCALL_THUNK *)thunk;
 598     pVtable = (void**)&itextServicesStdcallVtbl + 3;
 599     pVtableEnd = (void**)(&itextServicesStdcallVtbl + 1);
 600     while (pVtable != pVtableEnd) {
 601         /* write byte code to executable memory */
 602         thunk2->pop_eax = 0x58;               /* popl  %eax */
 603         thunk2->pop_ecx = 0x59;               /* popl  %ecx */
 604         thunk2->push_eax = 0x50;              /* pushl %eax */
 605         thunk2->mov_vtable_eax[0] = 0x8b;     /* movl (%ecx), %eax */
 606         thunk2->mov_vtable_eax[1] = 0x01;
 607         thunk2->jmp_eax[0] = 0xff;            /* jmp *$vtablefunc_offset(%eax) */
 608         thunk2->jmp_eax[1] = 0xa0;
 609         thunk2->vtablefunc_offset = (char*)pVtable - (char*)&itextServicesStdcallVtbl;
 610         *pVtable = thunk2;
 611         pVtable++;
 612         thunk2++;
 613     }
 614 #endif /* __i386__ */
 615 }
 616
 617 /*************************************************************************/
 618 /* Conformance test functions. */
 619
 620 /* Initialize the test texthost structure */
 621 static BOOL init_texthost(void)
 622 {
 623     IUnknown *init;
 624     HRESULT result;
 625
 626     dummyTextHost = CoTaskMemAlloc(sizeof(*dummyTextHost));
 627     if (dummyTextHost == NULL) {
 628         skip("Insufficient memory to create ITextHost interface\n");
 629         return FALSE;
 630     }
 631     dummyTextHost->ITextHost_iface.lpVtbl = &itextHostVtbl;
 632     dummyTextHost->refCount = 1;
 633
 634     /* MSDN states that an IUnknown object is returned by
 635        CreateTextServices which is then queried to obtain a
 636        ITextServices object. */
 637     result = (*pCreateTextServices)(NULL, &dummyTextHost->ITextHost_iface, &init);
 638     ok(result == S_OK, "Did not return S_OK when created (result =  %x)\n", result);
 639     if (result != S_OK) {
 640         CoTaskMemFree(dummyTextHost);
 641         skip("CreateTextServices failed.\n");
 642         return FALSE;
 643     }
 644
 645     result = IUnknown_QueryInterface(init, pIID_ITextServices,
 646                                      (void **)&txtserv);
 647     ok((result == S_OK) && (txtserv != NULL), "Querying interface failed (result = %x, txtserv = %p)\n", result, txtserv);
 648     IUnknown_Release(init);
 649     if (!((result == S_OK) && (txtserv != NULL))) {
 650         CoTaskMemFree(dummyTextHost);
 651         skip("Could not retrieve ITextServices interface\n");
 652         return FALSE;
 653     }
 654
 655     return TRUE;
 656 }
 657
 658 static void free_texthost(void)
 659 {
 660     IUnknown_Release(txtserv);
 661     CoTaskMemFree(dummyTextHost);
 662 }
 663
 664 static void test_TxGetText(void)
 665 {
 666     HRESULT hres;
 667     BSTR rettext;
 668
 669     if (!init_texthost())
 670         return;
 671
 672     hres = ITextServices_TxGetText(txtserv, &rettext);
 673     ok(hres == S_OK, "ITextServices_TxGetText failed (result = %x)\n", hres);
 674
 675     free_texthost();
 676 }
 677
 678 static void test_TxSetText(void)
 679 {
 680     HRESULT hres;
 681     BSTR rettext;
 682     WCHAR settext[] = {'T','e','s','t',0};
 683
 684     if (!init_texthost())
 685         return;
 686
 687     hres = ITextServices_TxSetText(txtserv, settext);
 688     ok(hres == S_OK, "ITextServices_TxSetText failed (result = %x)\n", hres);
 689
 690     hres = ITextServices_TxGetText(txtserv, &rettext);
 691     ok(hres == S_OK, "ITextServices_TxGetText failed (result = %x)\n", hres);
 692
 693     ok(SysStringLen(rettext) == 4,
 694                  "String returned of wrong length (expected 4, got %d)\n", SysStringLen(rettext));
 695     ok(memcmp(rettext,settext,SysStringByteLen(rettext)) == 0,
 696                  "String returned differs\n");
 697
 698     SysFreeString(rettext);
 699     free_texthost();
 700 }
 701
 702 static void test_TxGetNaturalSize(void) {
 703     HRESULT result;
 704     BOOL ret;
 705
 706     /* This value is used when calling TxGetNaturalSize.  MSDN says
 707        that this is not supported however a null pointer cannot be
 708        used as it will cause a segmentation violation.  The values in
 709        the structure being pointed to are required to be INT_MAX
 710        otherwise calculations can give wrong values. */
 711     const SIZEL psizelExtent = {INT_MAX,INT_MAX};
 712
 713     static const WCHAR oneA[] = {'A',0};
 714
 715     /* Results of measurements */
 716     LONG xdim, ydim;
 717
 718     /* The device context to do the tests in */
 719     HDC hdcDraw;
 720
 721     /* Variables with the text metric information */
 722     INT charwidth_caps_text[26];
 723     TEXTMETRIC tmInfo_text;
 724
 725     if (!init_texthost())
 726         return;
 727
 728     hdcDraw = GetDC(NULL);
 729     SaveDC(hdcDraw);
 730
 731     /* Populate the metric strucs */
 732     SetMapMode(hdcDraw,MM_TEXT);
 733     GetTextMetrics(hdcDraw, &tmInfo_text);
 734     SetLastError(0xdeadbeef);
 735     ret = GetCharWidth32(hdcDraw,'A','Z',charwidth_caps_text);
 736     if (!ret && GetLastError() == ERROR_CALL_NOT_IMPLEMENTED) {
 737         win_skip("GetCharWidth32 is not available\n");
 738         goto cleanup;
 739     }
 740
 741     /* Make measurements in MM_TEXT */
 742     SetMapMode(hdcDraw,MM_TEXT);
 743     xdim = 0; ydim = 0;
 744
 745     result = ITextServices_TxSetText(txtserv, oneA);
 746     ok(result == S_OK, "ITextServices_TxSetText failed (result = %x)\n", result);
 747     if (result != S_OK) {
 748         skip("Could not set text\n");
 749         goto cleanup;
 750     }
 751
 752     SetLastError(0xdeadbeef);
 753     result = ITextServices_TxGetNaturalSize(txtserv, DVASPECT_CONTENT,
 754                                             hdcDraw, NULL, NULL,
 755                                             TXTNS_FITTOCONTENT, &psizelExtent,
 756                                             &xdim, &ydim);
 757     todo_wine ok(result == S_OK || broken(result == E_FAIL), /* WINXP Arabic Language */
 758         "TxGetNaturalSize gave unexpected return value (result = %x)\n", result);
 759     if (result == S_OK) {
 760     todo_wine ok(ydim == tmInfo_text.tmHeight,
 761                  "Height calculated incorrectly (expected %d, got %d)\n",
 762                  tmInfo_text.tmHeight, ydim);
 763     /* The native DLL adds one pixel extra when calculating widths. */
 764     todo_wine ok(xdim >= charwidth_caps_text[0] && xdim <= charwidth_caps_text[0] + 1,
 765                  "Width calculated incorrectly (expected %d {+1}, got %d)\n",
 766                  charwidth_caps_text[0], xdim);
 767     } else
 768         skip("TxGetNaturalSize measurements not performed (xdim = %d, ydim = %d, result = %x, error = %x)\n",
 769              xdim, ydim, result, GetLastError());
 770
 771 cleanup:
 772     RestoreDC(hdcDraw,1);
 773     ReleaseDC(NULL,hdcDraw);
 774     free_texthost();
 775 }
 776
 777 static void test_TxDraw(void)
 778 {
 779     HDC tmphdc = GetDC(NULL);
 780     DWORD dwAspect = DVASPECT_CONTENT;
 781     HDC hicTargetDev = NULL; /* Means "default" device */
 782     DVTARGETDEVICE *ptd = NULL;
 783     void *pvAspect = NULL;
 784     HRESULT result;
 785     RECTL client = {0,0,100,100};
 786
 787     if (!init_texthost())
 788         return;
 789
 790     todo_wine {
 791         result = ITextServices_TxDraw(txtserv, dwAspect, 0, pvAspect, ptd,
 792                                       tmphdc, hicTargetDev, &client, NULL,
 793                                       NULL, NULL, 0, 0);
 794         ok(result == S_OK, "TxDraw failed (result = %x)\n", result);
 795     }
 796
 797     free_texthost();
 798
 799 }
 800
 801 DEFINE_GUID(expected_iid_itextservices, 0x8d33f740, 0xcf58, 0x11ce, 0xa8, 0x9d, 0x00, 0xaa, 0x00, 0x6c, 0xad, 0xc5);
 802 DEFINE_GUID(expected_iid_itexthost, 0x13e670f4,0x1a5a,0x11cf,0xab,0xeb,0x00,0xaa,0x00,0xb6,0x5e,0xa1);
 803 DEFINE_GUID(expected_iid_itexthost2, 0x13e670f5,0x1a5a,0x11cf,0xab,0xeb,0x00,0xaa,0x00,0xb6,0x5e,0xa1);
 804
 805 static void test_IIDs(void)
 806 {
 807     ok(IsEqualIID(pIID_ITextServices, &expected_iid_itextservices),
 808        "unexpected value for IID_ITextServices: %s\n", debugstr_guid(pIID_ITextServices));
 809     ok(IsEqualIID(pIID_ITextHost, &expected_iid_itexthost),
 810        "unexpected value for IID_ITextHost: %s\n", debugstr_guid(pIID_ITextHost));
 811     ok(IsEqualIID(pIID_ITextHost2, &expected_iid_itexthost2),
 812        "unexpected value for IID_ITextHost2: %s\n", debugstr_guid(pIID_ITextHost2));
 813 }
 814
 815 /* Outer IUnknown for COM aggregation tests */
 816 struct unk_impl {
 817     IUnknown IUnknown_iface;
 818     LONG ref;
 819     IUnknown *inner_unk;
 820 };
 821
 822 static inline struct unk_impl *impl_from_IUnknown(IUnknown *iface)
 823 {
 824     return CONTAINING_RECORD(iface, struct unk_impl, IUnknown_iface);
 825 }
 826
 827 static HRESULT WINAPI unk_QueryInterface(IUnknown *iface, REFIID riid, void **ppv)
 828 {
 829     struct unk_impl *This = impl_from_IUnknown(iface);
 830
 831     return IUnknown_QueryInterface(This->inner_unk, riid, ppv);
 832 }
 833
 834 static ULONG WINAPI unk_AddRef(IUnknown *iface)
 835 {
 836     struct unk_impl *This = impl_from_IUnknown(iface);
 837
 838     return InterlockedIncrement(&This->ref);
 839 }
 840
 841 static ULONG WINAPI unk_Release(IUnknown *iface)
 842 {
 843     struct unk_impl *This = impl_from_IUnknown(iface);
 844
 845     return InterlockedDecrement(&This->ref);
 846 }
 847
 848 static const IUnknownVtbl unk_vtbl =
 849 {
 850     unk_QueryInterface,
 851     unk_AddRef,
 852     unk_Release
 853 };
 854
 855 static void test_COM(void)
 856 {
 857     struct unk_impl unk_obj = {{&unk_vtbl}, 19, NULL};
 858     struct ITextHostTestImpl texthost = {{&itextHostVtbl}, 1};
 859     ITextServices *textsrv;
 860     ULONG refcount;
 861     HRESULT hr;
 862
 863     /* COM aggregation */
 864     hr = pCreateTextServices(&unk_obj.IUnknown_iface, &texthost.ITextHost_iface,
 865                              &unk_obj.inner_unk);
 866     ok(hr == S_OK, "CreateTextServices failed: %08x\n", hr);
 867     hr = IUnknown_QueryInterface(unk_obj.inner_unk, pIID_ITextServices, (void**)&textsrv);
 868     ok(hr == S_OK, "QueryInterface for IID_ITextServices failed: %08x\n", hr);
 869     refcount = ITextServices_AddRef(textsrv);
 870     ok(refcount == unk_obj.ref, "CreateTextServices just pretends to support COM aggregation\n");
 871     refcount = ITextServices_Release(textsrv);
 872     ok(refcount == unk_obj.ref, "CreateTextServices just pretends to support COM aggregation\n");
 873     refcount = ITextServices_Release(textsrv);
 874     ok(refcount == 19, "Refcount should be back at 19 but is %u\n", refcount);
 875
 876     IUnknown_Release(unk_obj.inner_unk);
 877 }
 878
 879 START_TEST( txtsrv )
 880 {
 881     setup_thiscall_wrappers();
 882
 883     /* Must explicitly LoadLibrary(). The test has no references to functions in
 884      * RICHED20.DLL, so the linker doesn't actually link to it. */
 885     hmoduleRichEdit = LoadLibrary("RICHED20.DLL");
 886     ok(hmoduleRichEdit != NULL, "error: %d\n", (int) GetLastError());
 887
 888     pIID_ITextServices = (IID*)GetProcAddress(hmoduleRichEdit, "IID_ITextServices");
 889     pIID_ITextHost = (IID*)GetProcAddress(hmoduleRichEdit, "IID_ITextHost");
 890     pIID_ITextHost2 = (IID*)GetProcAddress(hmoduleRichEdit, "IID_ITextHost2");
 891     pCreateTextServices = (void*)GetProcAddress(hmoduleRichEdit, "CreateTextServices");
 892
 893     test_IIDs();
 894     test_COM();
 895
 896     if (init_texthost())
 897     {
 898         free_texthost();
 899
 900         test_TxGetText();
 901         test_TxSetText();
 902         test_TxGetNaturalSize();
 903         test_TxDraw();
 904     }
 905     if (wrapperCodeMem) VirtualFree(wrapperCodeMem, 0, MEM_RELEASE);
 906 }