dlls/riched20/txtsrv.c

   1 /*
   2  * RichEdit - functions and interfaces around CreateTextServices
   3  *
   4  * Copyright 2005, 2006, Maarten Lankhorst
   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 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #define NONAMELESSSTRUCT
  25 #define NONAMELESSUNION
  26 #define COBJMACROS
  27
  28 #include "editor.h"
  29 #include "ole2.h"
  30 #include "oleauto.h"
  31 #include "richole.h"
  32 #include "imm.h"
  33 #include "textserv.h"
  34 #include "wine/debug.h"
  35 #include "editstr.h"
  36
  37 #ifdef __i386__  /* thiscall functions are i386-specific */
  38
  39 #define THISCALL(func) __thiscall_ ## func
  40 #define DEFINE_THISCALL_WRAPPER(func,args) \
  41    extern typeof(func) THISCALL(func); \
  42    __ASM_STDCALL_FUNC(__thiscall_ ## func, args, \
  43                    "popl %eax\n\t" \
  44                    "pushl %ecx\n\t" \
  45                    "pushl %eax\n\t" \
  46                    "jmp " __ASM_NAME(#func) __ASM_STDCALL(args) )
  47 #else /* __i386__ */
  48
  49 #define THISCALL(func) func
  50 #define DEFINE_THISCALL_WRAPPER(func,args) /* nothing */
  51
  52 #endif /* __i386__ */
  53
  54 WINE_DEFAULT_DEBUG_CHANNEL(richedit);
  55
  56 typedef struct ITextServicesImpl {
  57    const ITextServicesVtbl *lpVtbl;
  58    ITextHost *pMyHost;
  59    LONG ref;
  60    CRITICAL_SECTION csTxtSrv;
  61    ME_TextEditor *editor;
  62    char spare[256];
  63 } ITextServicesImpl;
  64
  65 static const ITextServicesVtbl textservices_Vtbl;
  66
  67 /******************************************************************
  68  *        CreateTextServices (RICHED20.4)
  69  */
  70 HRESULT WINAPI CreateTextServices(IUnknown  * pUnkOuter,
  71                                   ITextHost * pITextHost,
  72                                   IUnknown  **ppUnk)
  73 {
  74    ITextServicesImpl *ITextImpl;
  75    HRESULT hres;
  76    TRACE("%p %p --> %p\n", pUnkOuter, pITextHost, ppUnk);
  77    if (pITextHost == NULL)
  78       return E_POINTER;
  79
  80    ITextImpl = CoTaskMemAlloc(sizeof(*ITextImpl));
  81    if (ITextImpl == NULL)
  82       return E_OUTOFMEMORY;
  83    InitializeCriticalSection(&ITextImpl->csTxtSrv);
  84    ITextImpl->csTxtSrv.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": ITextServicesImpl.csTxtSrv");
  85    ITextImpl->ref = 1;
  86    ITextHost_AddRef(pITextHost);
  87    ITextImpl->pMyHost = pITextHost;
  88    ITextImpl->lpVtbl = &textservices_Vtbl;
  89    ITextImpl->editor = ME_MakeEditor(pITextHost, FALSE);
  90    ITextImpl->editor->exStyleFlags = 0;
  91    ITextImpl->editor->rcFormat = (RECT){0,0,0,0};
  92    ME_HandleMessage(ITextImpl->editor, WM_CREATE, 0, 0, TRUE, &hres);
  93
  94    if (pUnkOuter)
  95    {
  96       FIXME("Support aggregation\n");
  97       return CLASS_E_NOAGGREGATION;
  98    }
  99
 100    *ppUnk = (IUnknown *)ITextImpl;
 101    return S_OK;
 102 }
 103
 104 #define ICOM_THIS_MULTI(impl,field,iface) \
 105                     impl* const This=(impl*)((char*)(iface) - offsetof(impl,field))
 106
 107 static HRESULT WINAPI fnTextSrv_QueryInterface(ITextServices * iface,
 108                                                REFIID riid,
 109                                                LPVOID * ppv)
 110 {
 111    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 112    TRACE("(%p/%p)->(%s, %p)\n", This, iface, debugstr_guid(riid), ppv);
 113    *ppv = NULL;
 114    if (IsEqualIID(riid, &IID_IUnknown) || IsEqualIID(riid, &IID_ITextServices))
 115       *ppv = This;
 116
 117    if (*ppv)
 118    {
 119       IUnknown_AddRef((IUnknown *)(*ppv));
 120       TRACE ("-- Interface = %p\n", *ppv);
 121       return S_OK;
 122    }
 123    FIXME("Unknown interface: %s\n", debugstr_guid(riid));
 124    return E_NOINTERFACE;
 125 }
 126
 127 static ULONG WINAPI fnTextSrv_AddRef(ITextServices *iface)
 128 {
 129    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 130    DWORD ref = InterlockedIncrement(&This->ref);
 131
 132    TRACE("(%p/%p)->() AddRef from %d\n", This, iface, ref - 1);
 133    return ref;
 134 }
 135
 136 static ULONG WINAPI fnTextSrv_Release(ITextServices *iface)
 137 {
 138    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 139    DWORD ref = InterlockedDecrement(&This->ref);
 140
 141    TRACE("(%p/%p)->() Release from %d\n", This, iface, ref + 1);
 142
 143    if (!ref)
 144    {
 145       ITextHost_Release(This->pMyHost);
 146       This->csTxtSrv.DebugInfo->Spare[0] = 0;
 147       DeleteCriticalSection(&This->csTxtSrv);
 148       CoTaskMemFree(This);
 149    }
 150    return ref;
 151 }
 152
 153 HRESULT WINAPI fnTextSrv_TxSendMessage(ITextServices *iface,
 154                                        UINT msg,
 155                                        WPARAM wparam,
 156                                        LPARAM lparam,
 157                                        LRESULT* plresult)
 158 {
 159    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 160    HRESULT hresult;
 161    LRESULT lresult;
 162
 163    lresult = ME_HandleMessage(This->editor, msg, wparam, lparam, TRUE, &hresult);
 164    if (plresult) *plresult = lresult;
 165    return hresult;
 166 }
 167
 168 HRESULT WINAPI fnTextSrv_TxDraw(ITextServices *iface,
 169                                 DWORD dwDrawAspect,
 170                                 LONG lindex,
 171                                 void* pvAspect,
 172                                 DVTARGETDEVICE* ptd,
 173                                 HDC hdcDraw,
 174                                 HDC hdcTargetDev,
 175                                 LPCRECTL lprcBounds,
 176                                 LPCRECTL lprcWBounds,
 177                                 LPRECT lprcUpdate,
 178                                 BOOL (CALLBACK * pfnContinue)(DWORD),
 179                                 DWORD dwContinue,
 180                                 LONG lViewId)
 181 {
 182    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 183
 184    FIXME("%p: STUB\n", This);
 185    return E_NOTIMPL;
 186 }
 187
 188 HRESULT WINAPI fnTextSrv_TxGetHScroll(ITextServices *iface,
 189                                       LONG* plMin,
 190                                       LONG* plMax,
 191                                       LONG* plPos,
 192                                       LONG* plPage,
 193                                       BOOL* pfEnabled)
 194 {
 195    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 196
 197    *plMin = This->editor->horz_si.nMin;
 198    *plMax = This->editor->horz_si.nMax;
 199    *plPos = This->editor->horz_si.nPos;
 200    *plPage = This->editor->horz_si.nPage;
 201    *pfEnabled = (This->editor->styleFlags & WS_HSCROLL) != 0;
 202    return S_OK;
 203 }
 204
 205 HRESULT WINAPI fnTextSrv_TxGetVScroll(ITextServices *iface,
 206                                       LONG* plMin,
 207                                       LONG* plMax,
 208                                       LONG* plPos,
 209                                       LONG* plPage,
 210                                       BOOL* pfEnabled)
 211 {
 212    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 213
 214    *plMin = This->editor->vert_si.nMin;
 215    *plMax = This->editor->vert_si.nMax;
 216    *plPos = This->editor->vert_si.nPos;
 217    *plPage = This->editor->vert_si.nPage;
 218    *pfEnabled = (This->editor->styleFlags & WS_VSCROLL) != 0;
 219    return S_OK;
 220 }
 221
 222 HRESULT WINAPI fnTextSrv_OnTxSetCursor(ITextServices *iface,
 223                                        DWORD dwDrawAspect,
 224                                        LONG lindex,
 225                                        void* pvAspect,
 226                                        DVTARGETDEVICE* ptd,
 227                                        HDC hdcDraw,
 228                                        HDC hicTargetDev,
 229                                        LPCRECT lprcClient,
 230                                        INT x, INT y)
 231 {
 232    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 233
 234    FIXME("%p: STUB\n", This);
 235    return E_NOTIMPL;
 236 }
 237
 238 HRESULT WINAPI fnTextSrv_TxQueryHitPoint(ITextServices *iface,
 239                                          DWORD dwDrawAspect,
 240                                          LONG lindex,
 241                                          void* pvAspect,
 242                                          DVTARGETDEVICE* ptd,
 243                                          HDC hdcDraw,
 244                                          HDC hicTargetDev,
 245                                          LPCRECT lprcClient,
 246                                          INT x, INT y,
 247                                          DWORD* pHitResult)
 248 {
 249    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 250
 251    FIXME("%p: STUB\n", This);
 252    return E_NOTIMPL;
 253 }
 254
 255 HRESULT WINAPI fnTextSrv_OnTxInplaceActivate(ITextServices *iface,
 256                                              LPCRECT prcClient)
 257 {
 258    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 259
 260    FIXME("%p: STUB\n", This);
 261    return E_NOTIMPL;
 262 }
 263
 264 HRESULT WINAPI fnTextSrv_OnTxInplaceDeactivate(ITextServices *iface)
 265 {
 266    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 267
 268    FIXME("%p: STUB\n", This);
 269    return E_NOTIMPL;
 270 }
 271
 272 HRESULT WINAPI fnTextSrv_OnTxUIActivate(ITextServices *iface)
 273 {
 274    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 275
 276    FIXME("%p: STUB\n", This);
 277    return E_NOTIMPL;
 278 }
 279
 280 HRESULT WINAPI fnTextSrv_OnTxUIDeactivate(ITextServices *iface)
 281 {
 282    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 283
 284    FIXME("%p: STUB\n", This);
 285    return E_NOTIMPL;
 286 }
 287
 288 HRESULT WINAPI fnTextSrv_TxGetText(ITextServices *iface,
 289                                    BSTR* pbstrText)
 290 {
 291    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 292    int length;
 293
 294    length = ME_GetTextLength(This->editor);
 295    if (length)
 296    {
 297       ME_Cursor start;
 298       BSTR bstr;
 299       bstr = SysAllocStringByteLen(NULL, length * sizeof(WCHAR));
 300       if (bstr == NULL)
 301          return E_OUTOFMEMORY;
 302
 303       ME_CursorFromCharOfs(This->editor, 0, &start);
 304       ME_GetTextW(This->editor, bstr, length, &start, INT_MAX, FALSE);
 305       *pbstrText = bstr;
 306    } else {
 307       *pbstrText = NULL;
 308    }
 309
 310    return S_OK;
 311 }
 312
 313 HRESULT WINAPI fnTextSrv_TxSetText(ITextServices *iface,
 314                                    LPCWSTR pszText)
 315 {
 316    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 317    ME_Cursor cursor;
 318
 319    ME_SetCursorToStart(This->editor, &cursor);
 320    ME_InternalDeleteText(This->editor, &cursor,
 321                          ME_GetTextLength(This->editor), FALSE);
 322    ME_InsertTextFromCursor(This->editor, 0, pszText, -1,
 323                            This->editor->pBuffer->pDefaultStyle);
 324    ME_SetSelection(This->editor, 0, 0);
 325    This->editor->nModifyStep = 0;
 326    OleFlushClipboard();
 327    ME_EmptyUndoStack(This->editor);
 328    ME_UpdateRepaint(This->editor, FALSE);
 329
 330    return S_OK;
 331 }
 332
 333 HRESULT WINAPI fnTextSrv_TxGetCurrentTargetX(ITextServices *iface,
 334                                              LONG* x)
 335 {
 336    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 337
 338    FIXME("%p: STUB\n", This);
 339    return E_NOTIMPL;
 340 }
 341
 342 HRESULT WINAPI fnTextSrv_TxGetBaseLinePos(ITextServices *iface,
 343                                           LONG* x)
 344 {
 345    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 346
 347    FIXME("%p: STUB\n", This);
 348    return E_NOTIMPL;
 349 }
 350
 351 HRESULT WINAPI fnTextSrv_TxGetNaturalSize(ITextServices *iface,
 352                                           DWORD dwAspect,
 353                                           HDC hdcDraw,
 354                                           HDC hicTargetDev,
 355                                           DVTARGETDEVICE* ptd,
 356                                           DWORD dwMode,
 357                                           const SIZEL* psizelExtent,
 358                                           LONG* pwidth,
 359                                           LONG* pheight)
 360 {
 361    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 362
 363    FIXME("%p: STUB\n", This);
 364    return E_NOTIMPL;
 365 }
 366
 367 HRESULT WINAPI fnTextSrv_TxGetDropTarget(ITextServices *iface,
 368                                          IDropTarget** ppDropTarget)
 369 {
 370    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 371
 372    FIXME("%p: STUB\n", This);
 373    return E_NOTIMPL;
 374 }
 375
 376 HRESULT WINAPI fnTextSrv_OnTxPropertyBitsChange(ITextServices *iface,
 377                                                 DWORD dwMask,
 378                                                 DWORD dwBits)
 379 {
 380    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 381
 382    FIXME("%p: STUB\n", This);
 383    return E_NOTIMPL;
 384 }
 385
 386 HRESULT WINAPI fnTextSrv_TxGetCachedSize(ITextServices *iface,
 387                                          DWORD* pdwWidth,
 388                                          DWORD* pdwHeight)
 389 {
 390    ICOM_THIS_MULTI(ITextServicesImpl, lpVtbl, iface);
 391
 392    FIXME("%p: STUB\n", This);
 393    return E_NOTIMPL;
 394 }
 395
 396 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxSendMessage,20)
 397 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxDraw,52)
 398 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxGetHScroll,24)
 399 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxGetVScroll,24)
 400 DEFINE_THISCALL_WRAPPER(fnTextSrv_OnTxSetCursor,40)
 401 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxQueryHitPoint,44)
 402 DEFINE_THISCALL_WRAPPER(fnTextSrv_OnTxInplaceActivate,8)
 403 DEFINE_THISCALL_WRAPPER(fnTextSrv_OnTxInplaceDeactivate,4)
 404 DEFINE_THISCALL_WRAPPER(fnTextSrv_OnTxUIActivate,4)
 405 DEFINE_THISCALL_WRAPPER(fnTextSrv_OnTxUIDeactivate,4)
 406 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxGetText,8)
 407 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxSetText,8)
 408 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxGetCurrentTargetX,8)
 409 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxGetBaseLinePos,8)
 410 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxGetNaturalSize,36)
 411 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxGetDropTarget,8)
 412 DEFINE_THISCALL_WRAPPER(fnTextSrv_OnTxPropertyBitsChange,12)
 413 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxGetCachedSize,12)
 414
 415 static const ITextServicesVtbl textservices_Vtbl =
 416 {
 417    fnTextSrv_QueryInterface,
 418    fnTextSrv_AddRef,
 419    fnTextSrv_Release,
 420    THISCALL(fnTextSrv_TxSendMessage),
 421    THISCALL(fnTextSrv_TxDraw),
 422    THISCALL(fnTextSrv_TxGetHScroll),
 423    THISCALL(fnTextSrv_TxGetVScroll),
 424    THISCALL(fnTextSrv_OnTxSetCursor),
 425    THISCALL(fnTextSrv_TxQueryHitPoint),
 426    THISCALL(fnTextSrv_OnTxInplaceActivate),
 427    THISCALL(fnTextSrv_OnTxInplaceDeactivate),
 428    THISCALL(fnTextSrv_OnTxUIActivate),
 429    THISCALL(fnTextSrv_OnTxUIDeactivate),
 430    THISCALL(fnTextSrv_TxGetText),
 431    THISCALL(fnTextSrv_TxSetText),
 432    THISCALL(fnTextSrv_TxGetCurrentTargetX),
 433    THISCALL(fnTextSrv_TxGetBaseLinePos),
 434    THISCALL(fnTextSrv_TxGetNaturalSize),
 435    THISCALL(fnTextSrv_TxGetDropTarget),
 436    THISCALL(fnTextSrv_OnTxPropertyBitsChange),
 437    THISCALL(fnTextSrv_TxGetCachedSize)
 438 };