ReactOS Development > Doxygen

00001 /*
00002  * RichEdit - functions and interfaces around CreateTextServices
00003  *
00004  * Copyright 2005, 2006, Maarten Lankhorst
00005  *
00006  * This library is free software; you can redistribute it and/or
00007  * modify it under the terms of the GNU Lesser General Public
00008  * License as published by the Free Software Foundation; either
00009  * version 2.1 of the License, or (at your option) any later version.
00010  *
00011  * This library is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014  * Lesser General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU Lesser General Public
00017  * License along with this library; if not, write to the Free Software
00018  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
00019  */
00020 
00021 #include "config.h"
00022 #include "wine/port.h"
00023 
00024 #define NONAMELESSSTRUCT
00025 #define NONAMELESSUNION
00026 #define COBJMACROS
00027 
00028 #include "editor.h"
00029 #include "ole2.h"
00030 #include "oleauto.h"
00031 #include "richole.h"
00032 #include "imm.h"
00033 #include "textserv.h"
00034 #include "wine/debug.h"
00035 #include "editstr.h"
00036 
00037 #ifdef __i386__  /* thiscall functions are i386-specific */
00038 
00039 #define THISCALL(func) __thiscall_ ## func
00040 #define DEFINE_THISCALL_WRAPPER(func,args) \
00041    extern typeof(func) THISCALL(func); \
00042    __ASM_STDCALL_FUNC(__thiscall_ ## func, args, \
00043                    "popl %eax\n\t" \
00044                    "pushl %ecx\n\t" \
00045                    "pushl %eax\n\t" \
00046                    "jmp " __ASM_NAME(#func) __ASM_STDCALL(args) )
00047 #else /* __i386__ */
00048 
00049 #define THISCALL(func) func
00050 #define DEFINE_THISCALL_WRAPPER(func,args) /* nothing */
00051 
00052 #endif /* __i386__ */
00053 
00054 WINE_DEFAULT_DEBUG_CHANNEL(richedit);
00055 
00056 typedef struct ITextServicesImpl {
00057    IUnknown IUnknown_inner;
00058    ITextServices ITextServices_iface;
00059    IUnknown *outer_unk;
00060    LONG ref;
00061    ITextHost *pMyHost;
00062    CRITICAL_SECTION csTxtSrv;
00063    ME_TextEditor *editor;
00064    char spare[256];
00065 } ITextServicesImpl;
00066 
00067 static inline ITextServicesImpl *impl_from_IUnknown(IUnknown *iface)
00068 {
00069    return CONTAINING_RECORD(iface, ITextServicesImpl, IUnknown_inner);
00070 }
00071 
00072 static HRESULT WINAPI ITextServicesImpl_QueryInterface(IUnknown *iface, REFIID riid, void **ppv)
00073 {
00074    ITextServicesImpl *This = impl_from_IUnknown(iface);
00075 
00076    TRACE("(%p)->(%s, %p)\n", iface, debugstr_guid(riid), ppv);
00077 
00078    if (IsEqualIID(riid, &IID_IUnknown))
00079       *ppv = &This->IUnknown_inner;
00080    else if IsEqualIID(riid, &IID_ITextServices)
00081       *ppv = &This->ITextServices_iface;
00082    else {
00083       *ppv = NULL;
00084       FIXME("Unknown interface: %s\n", debugstr_guid(riid));
00085       return E_NOINTERFACE;
00086    }
00087 
00088    IUnknown_AddRef((IUnknown*)*ppv);
00089    return S_OK;
00090 }
00091 
00092 static ULONG WINAPI ITextServicesImpl_AddRef(IUnknown *iface)
00093 {
00094    ITextServicesImpl *This = impl_from_IUnknown(iface);
00095    LONG ref = InterlockedIncrement(&This->ref);
00096 
00097    TRACE("(%p) ref=%d\n", This, ref);
00098 
00099    return ref;
00100 }
00101 
00102 static ULONG WINAPI ITextServicesImpl_Release(IUnknown *iface)
00103 {
00104    ITextServicesImpl *This = impl_from_IUnknown(iface);
00105    LONG ref = InterlockedDecrement(&This->ref);
00106 
00107    TRACE("(%p) ref=%d\n", This, ref);
00108 
00109    if (!ref)
00110    {
00111       ITextHost_Release(This->pMyHost);
00112       This->csTxtSrv.DebugInfo->Spare[0] = 0;
00113       DeleteCriticalSection(&This->csTxtSrv);
00114       CoTaskMemFree(This);
00115    }
00116    return ref;
00117 }
00118 
00119 static const IUnknownVtbl textservices_inner_vtbl =
00120 {
00121    ITextServicesImpl_QueryInterface,
00122    ITextServicesImpl_AddRef,
00123    ITextServicesImpl_Release
00124 };
00125 
00126 static inline ITextServicesImpl *impl_from_ITextServices(ITextServices *iface)
00127 {
00128    return CONTAINING_RECORD(iface, ITextServicesImpl, ITextServices_iface);
00129 }
00130 
00131 static HRESULT WINAPI fnTextSrv_QueryInterface(ITextServices *iface, REFIID riid, void **ppv)
00132 {
00133    ITextServicesImpl *This = impl_from_ITextServices(iface);
00134    return IUnknown_QueryInterface(This->outer_unk, riid, ppv);
00135 }
00136 
00137 static ULONG WINAPI fnTextSrv_AddRef(ITextServices *iface)
00138 {
00139    ITextServicesImpl *This = impl_from_ITextServices(iface);
00140    return IUnknown_AddRef(This->outer_unk);
00141 }
00142 
00143 static ULONG WINAPI fnTextSrv_Release(ITextServices *iface)
00144 {
00145    ITextServicesImpl *This = impl_from_ITextServices(iface);
00146    return IUnknown_Release(This->outer_unk);
00147 }
00148 
00149 DECLSPEC_HIDDEN HRESULT WINAPI fnTextSrv_TxSendMessage(ITextServices *iface, UINT msg, WPARAM wparam,
00150                                        LPARAM lparam, LRESULT *plresult)
00151 {
00152    ITextServicesImpl *This = impl_from_ITextServices(iface);
00153    HRESULT hresult;
00154    LRESULT lresult;
00155 
00156    lresult = ME_HandleMessage(This->editor, msg, wparam, lparam, TRUE, &hresult);
00157    if (plresult) *plresult = lresult;
00158    return hresult;
00159 }
00160 
00161 DECLSPEC_HIDDEN HRESULT WINAPI fnTextSrv_TxDraw(ITextServices *iface, DWORD dwDrawAspect, LONG lindex,
00162                                 void *pvAspect, DVTARGETDEVICE *ptd, HDC hdcDraw, HDC hdcTargetDev,
00163                                 LPCRECTL lprcBounds, LPCRECTL lprcWBounds, LPRECT lprcUpdate,
00164                                 BOOL (CALLBACK * pfnContinue)(DWORD), DWORD dwContinue,
00165                                 LONG lViewId)
00166 {
00167    ITextServicesImpl *This = impl_from_ITextServices(iface);
00168 
00169    FIXME("%p: STUB\n", This);
00170    return E_NOTIMPL;
00171 }
00172 
00173 DECLSPEC_HIDDEN HRESULT WINAPI fnTextSrv_TxGetHScroll(ITextServices *iface, LONG *plMin, LONG *plMax, LONG *plPos,
00174                                       LONG *plPage, BOOL *pfEnabled)
00175 {
00176    ITextServicesImpl *This = impl_from_ITextServices(iface);
00177 
00178    *plMin = This->editor->horz_si.nMin;
00179    *plMax = This->editor->horz_si.nMax;
00180    *plPos = This->editor->horz_si.nPos;
00181    *plPage = This->editor->horz_si.nPage;
00182    *pfEnabled = (This->editor->styleFlags & WS_HSCROLL) != 0;
00183    return S_OK;
00184 }
00185 
00186 DECLSPEC_HIDDEN HRESULT WINAPI fnTextSrv_TxGetVScroll(ITextServices *iface, LONG *plMin, LONG *plMax, LONG *plPos,
00187                                       LONG *plPage, BOOL *pfEnabled)
00188 {
00189    ITextServicesImpl *This = impl_from_ITextServices(iface);
00190 
00191    *plMin = This->editor->vert_si.nMin;
00192    *plMax = This->editor->vert_si.nMax;
00193    *plPos = This->editor->vert_si.nPos;
00194    *plPage = This->editor->vert_si.nPage;
00195    *pfEnabled = (This->editor->styleFlags & WS_VSCROLL) != 0;
00196    return S_OK;
00197 }
00198 
00199 DECLSPEC_HIDDEN HRESULT WINAPI fnTextSrv_OnTxSetCursor(ITextServices *iface, DWORD dwDrawAspect, LONG lindex,
00200                                        void *pvAspect, DVTARGETDEVICE *ptd, HDC hdcDraw,
00201                                        HDC hicTargetDev, LPCRECT lprcClient, INT x, INT y)
00202 {
00203    ITextServicesImpl *This = impl_from_ITextServices(iface);
00204 
00205    FIXME("%p: STUB\n", This);
00206    return E_NOTIMPL;
00207 }
00208 
00209 DECLSPEC_HIDDEN HRESULT WINAPI fnTextSrv_TxQueryHitPoint(ITextServices *iface, DWORD dwDrawAspect, LONG lindex,
00210                                          void *pvAspect, DVTARGETDEVICE *ptd, HDC hdcDraw,
00211                                          HDC hicTargetDev, LPCRECT lprcClient, INT x, INT y,
00212                                          DWORD *pHitResult)
00213 {
00214    ITextServicesImpl *This = impl_from_ITextServices(iface);
00215 
00216    FIXME("%p: STUB\n", This);
00217    return E_NOTIMPL;
00218 }
00219 
00220 DECLSPEC_HIDDEN HRESULT WINAPI fnTextSrv_OnTxInplaceActivate(ITextServices *iface, LPCRECT prcClient)
00221 {
00222    ITextServicesImpl *This = impl_from_ITextServices(iface);
00223 
00224    FIXME("%p: STUB\n", This);
00225    return E_NOTIMPL;
00226 }
00227 
00228 DECLSPEC_HIDDEN HRESULT WINAPI fnTextSrv_OnTxInplaceDeactivate(ITextServices *iface)
00229 {
00230    ITextServicesImpl *This = impl_from_ITextServices(iface);
00231 
00232    FIXME("%p: STUB\n", This);
00233    return E_NOTIMPL;
00234 }
00235 
00236 DECLSPEC_HIDDEN HRESULT WINAPI fnTextSrv_OnTxUIActivate(ITextServices *iface)
00237 {
00238    ITextServicesImpl *This = impl_from_ITextServices(iface);
00239 
00240    FIXME("%p: STUB\n", This);
00241    return E_NOTIMPL;
00242 }
00243 
00244 DECLSPEC_HIDDEN HRESULT WINAPI fnTextSrv_OnTxUIDeactivate(ITextServices *iface)
00245 {
00246    ITextServicesImpl *This = impl_from_ITextServices(iface);
00247 
00248    FIXME("%p: STUB\n", This);
00249    return E_NOTIMPL;
00250 }
00251 
00252 DECLSPEC_HIDDEN HRESULT WINAPI fnTextSrv_TxGetText(ITextServices *iface, BSTR *pbstrText)
00253 {
00254    ITextServicesImpl *This = impl_from_ITextServices(iface);
00255    int length;
00256 
00257    length = ME_GetTextLength(This->editor);
00258    if (length)
00259    {
00260       ME_Cursor start;
00261       BSTR bstr;
00262       bstr = SysAllocStringByteLen(NULL, length * sizeof(WCHAR));
00263       if (bstr == NULL)
00264          return E_OUTOFMEMORY;
00265 
00266       ME_CursorFromCharOfs(This->editor, 0, &start);
00267       ME_GetTextW(This->editor, bstr, length, &start, INT_MAX, FALSE);
00268       *pbstrText = bstr;
00269    } else {
00270       *pbstrText = NULL;
00271    }
00272 
00273    return S_OK;
00274 }
00275 
00276 DECLSPEC_HIDDEN HRESULT WINAPI fnTextSrv_TxSetText(ITextServices *iface, LPCWSTR pszText)
00277 {
00278    ITextServicesImpl *This = impl_from_ITextServices(iface);
00279    ME_Cursor cursor;
00280 
00281    ME_SetCursorToStart(This->editor, &cursor);
00282    ME_InternalDeleteText(This->editor, &cursor,
00283                          ME_GetTextLength(This->editor), FALSE);
00284    ME_InsertTextFromCursor(This->editor, 0, pszText, -1,
00285                            This->editor->pBuffer->pDefaultStyle);
00286    ME_SetSelection(This->editor, 0, 0);
00287    This->editor->nModifyStep = 0;
00288    OleFlushClipboard();
00289    ME_EmptyUndoStack(This->editor);
00290    ME_UpdateRepaint(This->editor, FALSE);
00291 
00292    return S_OK;
00293 }
00294 
00295 DECLSPEC_HIDDEN HRESULT WINAPI fnTextSrv_TxGetCurrentTargetX(ITextServices *iface, LONG *x)
00296 {
00297    ITextServicesImpl *This = impl_from_ITextServices(iface);
00298 
00299    FIXME("%p: STUB\n", This);
00300    return E_NOTIMPL;
00301 }
00302 
00303 DECLSPEC_HIDDEN HRESULT WINAPI fnTextSrv_TxGetBaseLinePos(ITextServices *iface, LONG *x)
00304 {
00305    ITextServicesImpl *This = impl_from_ITextServices(iface);
00306 
00307    FIXME("%p: STUB\n", This);
00308    return E_NOTIMPL;
00309 }
00310 
00311 DECLSPEC_HIDDEN HRESULT WINAPI fnTextSrv_TxGetNaturalSize(ITextServices *iface, DWORD dwAspect, HDC hdcDraw,
00312                                           HDC hicTargetDev, DVTARGETDEVICE *ptd, DWORD dwMode,
00313                                           const SIZEL *psizelExtent, LONG *pwidth, LONG *pheight)
00314 {
00315    ITextServicesImpl *This = impl_from_ITextServices(iface);
00316 
00317    FIXME("%p: STUB\n", This);
00318    return E_NOTIMPL;
00319 }
00320 
00321 DECLSPEC_HIDDEN HRESULT WINAPI fnTextSrv_TxGetDropTarget(ITextServices *iface, IDropTarget **ppDropTarget)
00322 {
00323    ITextServicesImpl *This = impl_from_ITextServices(iface);
00324 
00325    FIXME("%p: STUB\n", This);
00326    return E_NOTIMPL;
00327 }
00328 
00329 DECLSPEC_HIDDEN HRESULT WINAPI fnTextSrv_OnTxPropertyBitsChange(ITextServices *iface, DWORD dwMask, DWORD dwBits)
00330 {
00331    ITextServicesImpl *This = impl_from_ITextServices(iface);
00332 
00333    FIXME("%p: STUB\n", This);
00334    return E_NOTIMPL;
00335 }
00336 
00337 DECLSPEC_HIDDEN HRESULT WINAPI fnTextSrv_TxGetCachedSize(ITextServices *iface, DWORD *pdwWidth, DWORD *pdwHeight)
00338 {
00339    ITextServicesImpl *This = impl_from_ITextServices(iface);
00340 
00341    FIXME("%p: STUB\n", This);
00342    return E_NOTIMPL;
00343 }
00344 
00345 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxSendMessage,20)
00346 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxDraw,52)
00347 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxGetHScroll,24)
00348 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxGetVScroll,24)
00349 DEFINE_THISCALL_WRAPPER(fnTextSrv_OnTxSetCursor,40)
00350 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxQueryHitPoint,44)
00351 DEFINE_THISCALL_WRAPPER(fnTextSrv_OnTxInplaceActivate,8)
00352 DEFINE_THISCALL_WRAPPER(fnTextSrv_OnTxInplaceDeactivate,4)
00353 DEFINE_THISCALL_WRAPPER(fnTextSrv_OnTxUIActivate,4)
00354 DEFINE_THISCALL_WRAPPER(fnTextSrv_OnTxUIDeactivate,4)
00355 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxGetText,8)
00356 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxSetText,8)
00357 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxGetCurrentTargetX,8)
00358 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxGetBaseLinePos,8)
00359 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxGetNaturalSize,36)
00360 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxGetDropTarget,8)
00361 DEFINE_THISCALL_WRAPPER(fnTextSrv_OnTxPropertyBitsChange,12)
00362 DEFINE_THISCALL_WRAPPER(fnTextSrv_TxGetCachedSize,12)
00363 
00364 static const ITextServicesVtbl textservices_vtbl =
00365 {
00366    fnTextSrv_QueryInterface,
00367    fnTextSrv_AddRef,
00368    fnTextSrv_Release,
00369    THISCALL(fnTextSrv_TxSendMessage),
00370    THISCALL(fnTextSrv_TxDraw),
00371    THISCALL(fnTextSrv_TxGetHScroll),
00372    THISCALL(fnTextSrv_TxGetVScroll),
00373    THISCALL(fnTextSrv_OnTxSetCursor),
00374    THISCALL(fnTextSrv_TxQueryHitPoint),
00375    THISCALL(fnTextSrv_OnTxInplaceActivate),
00376    THISCALL(fnTextSrv_OnTxInplaceDeactivate),
00377    THISCALL(fnTextSrv_OnTxUIActivate),
00378    THISCALL(fnTextSrv_OnTxUIDeactivate),
00379    THISCALL(fnTextSrv_TxGetText),
00380    THISCALL(fnTextSrv_TxSetText),
00381    THISCALL(fnTextSrv_TxGetCurrentTargetX),
00382    THISCALL(fnTextSrv_TxGetBaseLinePos),
00383    THISCALL(fnTextSrv_TxGetNaturalSize),
00384    THISCALL(fnTextSrv_TxGetDropTarget),
00385    THISCALL(fnTextSrv_OnTxPropertyBitsChange),
00386    THISCALL(fnTextSrv_TxGetCachedSize)
00387 };
00388 
00389 /******************************************************************
00390  *        CreateTextServices (RICHED20.4)
00391  */
00392 HRESULT WINAPI CreateTextServices(IUnknown  *pUnkOuter, ITextHost *pITextHost, IUnknown  **ppUnk)
00393 {
00394    ITextServicesImpl *ITextImpl;
00395    HRESULT hres;
00396    TRACE("%p %p --> %p\n", pUnkOuter, pITextHost, ppUnk);
00397    if (pITextHost == NULL)
00398       return E_POINTER;
00399 
00400    ITextImpl = CoTaskMemAlloc(sizeof(*ITextImpl));
00401    if (ITextImpl == NULL)
00402       return E_OUTOFMEMORY;
00403    InitializeCriticalSection(&ITextImpl->csTxtSrv);
00404    ITextImpl->csTxtSrv.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": ITextServicesImpl.csTxtSrv");
00405    ITextImpl->ref = 1;
00406    ITextHost_AddRef(pITextHost);
00407    ITextImpl->pMyHost = pITextHost;
00408    ITextImpl->IUnknown_inner.lpVtbl = &textservices_inner_vtbl;
00409    ITextImpl->ITextServices_iface.lpVtbl = &textservices_vtbl;
00410    ITextImpl->editor = ME_MakeEditor(pITextHost, FALSE);
00411    ITextImpl->editor->exStyleFlags = 0;
00412    ITextImpl->editor->rcFormat.left = 0;
00413    ITextImpl->editor->rcFormat.top = 0;
00414    ITextImpl->editor->rcFormat.right = 0;
00415    ITextImpl->editor->rcFormat.bottom = 0;
00416 
00417    ME_HandleMessage(ITextImpl->editor, WM_CREATE, 0, 0, TRUE, &hres);
00418 
00419    if (pUnkOuter)
00420       ITextImpl->outer_unk = pUnkOuter;
00421    else
00422       ITextImpl->outer_unk = &ITextImpl->IUnknown_inner;
00423 
00424    *ppUnk = &ITextImpl->IUnknown_inner;
00425    return S_OK;
00426 }
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