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