| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/msw/ole/access.cpp |
| 3 | // Purpose: implementation of wxIAccessible and wxAccessible |
| 4 | // Author: Julian Smart |
| 5 | // Modified by: |
| 6 | // Created: 2003-02-12 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 2003 Julian Smart |
| 9 | // Licence: wxWindows licence |
| 10 | /////////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ============================================================================ |
| 13 | // declarations |
| 14 | // ============================================================================ |
| 15 | |
| 16 | // ---------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // ---------------------------------------------------------------------------- |
| 19 | |
| 20 | // For compilers that support precompilation, includes "wx.h". |
| 21 | #include "wx/wxprec.h" |
| 22 | |
| 23 | #if defined(__BORLANDC__) |
| 24 | #pragma hdrstop |
| 25 | #endif |
| 26 | |
| 27 | #if wxUSE_OLE && wxUSE_ACCESSIBILITY |
| 28 | |
| 29 | #include "wx/access.h" |
| 30 | |
| 31 | #ifndef WX_PRECOMP |
| 32 | #include "wx/msw/wrapwin.h" |
| 33 | #include "wx/window.h" |
| 34 | #include "wx/log.h" |
| 35 | #endif |
| 36 | |
| 37 | // for some compilers, the entire ole2.h must be included, not only oleauto.h |
| 38 | #if wxUSE_NORLANDER_HEADERS || defined(__WATCOMC__) |
| 39 | #include <ole2.h> |
| 40 | #endif |
| 41 | |
| 42 | #include <oleauto.h> |
| 43 | #include <oleacc.h> |
| 44 | #include <winable.h> |
| 45 | |
| 46 | #include "wx/msw/ole/oleutils.h" |
| 47 | |
| 48 | #ifndef CHILDID_SELF |
| 49 | #define CHILDID_SELF 0 |
| 50 | #endif |
| 51 | |
| 52 | #ifndef OBJID_CLIENT |
| 53 | #define OBJID_CLIENT 0xFFFFFFFC |
| 54 | #endif |
| 55 | |
| 56 | // Convert to Windows role |
| 57 | int wxConvertToWindowsRole(wxAccRole wxrole); |
| 58 | |
| 59 | // Convert to Windows state |
| 60 | long wxConvertToWindowsState(long wxstate); |
| 61 | |
| 62 | // Convert to Windows selection flag |
| 63 | int wxConvertToWindowsSelFlag(wxAccSelectionFlags sel); |
| 64 | |
| 65 | // Convert from Windows selection flag |
| 66 | wxAccSelectionFlags wxConvertFromWindowsSelFlag(int sel); |
| 67 | |
| 68 | #if wxUSE_VARIANT |
| 69 | // ---------------------------------------------------------------------------- |
| 70 | // wxIEnumVARIANT interface implementation |
| 71 | // ---------------------------------------------------------------------------- |
| 72 | |
| 73 | class wxIEnumVARIANT : public IEnumVARIANT |
| 74 | { |
| 75 | public: |
| 76 | wxIEnumVARIANT(const wxVariant& variant); |
| 77 | virtual ~wxIEnumVARIANT() { } |
| 78 | |
| 79 | DECLARE_IUNKNOWN_METHODS; |
| 80 | |
| 81 | // IEnumVARIANT |
| 82 | STDMETHODIMP Next(ULONG celt, VARIANT *rgelt, ULONG *pceltFetched); |
| 83 | STDMETHODIMP Skip(ULONG celt); |
| 84 | STDMETHODIMP Reset(); |
| 85 | STDMETHODIMP Clone(IEnumVARIANT **ppenum); |
| 86 | |
| 87 | private: |
| 88 | wxVariant m_variant; // List of further variants |
| 89 | int m_nCurrent; // Current enum position |
| 90 | |
| 91 | DECLARE_NO_COPY_CLASS(wxIEnumVARIANT) |
| 92 | }; |
| 93 | |
| 94 | // ---------------------------------------------------------------------------- |
| 95 | // wxIEnumVARIANT |
| 96 | // ---------------------------------------------------------------------------- |
| 97 | |
| 98 | BEGIN_IID_TABLE(wxIEnumVARIANT) |
| 99 | ADD_IID(Unknown) |
| 100 | ADD_IID(EnumVARIANT) |
| 101 | END_IID_TABLE; |
| 102 | |
| 103 | IMPLEMENT_IUNKNOWN_METHODS(wxIEnumVARIANT) |
| 104 | |
| 105 | // wxVariant contains a list of further variants. |
| 106 | wxIEnumVARIANT::wxIEnumVARIANT(const wxVariant& variant) |
| 107 | { |
| 108 | m_variant = variant; |
| 109 | } |
| 110 | |
| 111 | STDMETHODIMP wxIEnumVARIANT::Next(ULONG celt, |
| 112 | VARIANT *rgelt, |
| 113 | ULONG *pceltFetched) |
| 114 | { |
| 115 | wxLogTrace(wxTRACE_OleCalls, wxT("wxIEnumVARIANT::Next")); |
| 116 | |
| 117 | if ( celt > 1 ) { |
| 118 | // we only return 1 element at a time - mainly because I'm too lazy to |
| 119 | // implement something which you're never asked for anyhow |
| 120 | return S_FALSE; |
| 121 | } |
| 122 | |
| 123 | if (m_variant.GetType() != wxT("list")) |
| 124 | return S_FALSE; |
| 125 | |
| 126 | if ( m_nCurrent < (int) m_variant.GetList().GetCount() ) { |
| 127 | if (!wxConvertVariantToOle(m_variant[m_nCurrent++], rgelt[0])) |
| 128 | { |
| 129 | return S_FALSE; |
| 130 | } |
| 131 | |
| 132 | // TODO: should we AddRef if this is an object? |
| 133 | |
| 134 | * pceltFetched = 1; |
| 135 | return S_OK; |
| 136 | } |
| 137 | else { |
| 138 | // bad index |
| 139 | return S_FALSE; |
| 140 | } |
| 141 | } |
| 142 | |
| 143 | STDMETHODIMP wxIEnumVARIANT::Skip(ULONG celt) |
| 144 | { |
| 145 | wxLogTrace(wxTRACE_OleCalls, wxT("wxIEnumVARIANT::Skip")); |
| 146 | |
| 147 | if (m_variant.GetType() != wxT("list")) |
| 148 | return S_FALSE; |
| 149 | |
| 150 | m_nCurrent += celt; |
| 151 | if ( m_nCurrent < (int) m_variant.GetList().GetCount() ) |
| 152 | return S_OK; |
| 153 | |
| 154 | // no, can't skip this many elements |
| 155 | m_nCurrent -= celt; |
| 156 | |
| 157 | return S_FALSE; |
| 158 | } |
| 159 | |
| 160 | STDMETHODIMP wxIEnumVARIANT::Reset() |
| 161 | { |
| 162 | wxLogTrace(wxTRACE_OleCalls, wxT("wxIEnumVARIANT::Reset")); |
| 163 | |
| 164 | m_nCurrent = 0; |
| 165 | |
| 166 | return S_OK; |
| 167 | } |
| 168 | |
| 169 | STDMETHODIMP wxIEnumVARIANT::Clone(IEnumVARIANT **ppenum) |
| 170 | { |
| 171 | wxLogTrace(wxTRACE_OleCalls, wxT("wxIEnumVARIANT::Clone")); |
| 172 | |
| 173 | wxIEnumVARIANT *pNew = new wxIEnumVARIANT(m_variant); |
| 174 | pNew->AddRef(); |
| 175 | *ppenum = pNew; |
| 176 | |
| 177 | return S_OK; |
| 178 | } |
| 179 | |
| 180 | #endif // wxUSE_VARIANT |
| 181 | |
| 182 | // ---------------------------------------------------------------------------- |
| 183 | // wxIAccessible implementation of IAccessible interface |
| 184 | // ---------------------------------------------------------------------------- |
| 185 | |
| 186 | class wxIAccessible : public IAccessible |
| 187 | { |
| 188 | public: |
| 189 | wxIAccessible(wxAccessible *pAccessible); |
| 190 | |
| 191 | DECLARE_IUNKNOWN_METHODS; |
| 192 | |
| 193 | // IAccessible |
| 194 | |
| 195 | // Navigation and Hierarchy |
| 196 | |
| 197 | // Retrieves the child element or child object at a given point on the screen. |
| 198 | // All visual objects support this method; sound objects do not support it. |
| 199 | |
| 200 | STDMETHODIMP accHitTest(long xLeft, long yLeft, VARIANT* pVarID); |
| 201 | |
| 202 | // Retrieves the specified object's current screen location. All visual objects must |
| 203 | // support this method; sound objects do not support it. |
| 204 | |
| 205 | STDMETHODIMP accLocation ( long* pxLeft, long* pyTop, long* pcxWidth, long* pcyHeight, VARIANT varID); |
| 206 | |
| 207 | // Traverses to another user interface element within a container and retrieves the object. |
| 208 | // All visual objects must support this method. |
| 209 | |
| 210 | STDMETHODIMP accNavigate ( long navDir, VARIANT varStart, VARIANT* pVarEnd); |
| 211 | |
| 212 | // Retrieves the address of an IDispatch interface for the specified child. |
| 213 | // All objects must support this property. |
| 214 | |
| 215 | STDMETHODIMP get_accChild ( VARIANT varChildID, IDispatch** ppDispChild); |
| 216 | |
| 217 | // Retrieves the number of children that belong to this object. |
| 218 | // All objects must support this property. |
| 219 | |
| 220 | STDMETHODIMP get_accChildCount ( long* pCountChildren); |
| 221 | |
| 222 | // Retrieves the IDispatch interface of the object's parent. |
| 223 | // All objects support this property. |
| 224 | |
| 225 | STDMETHODIMP get_accParent ( IDispatch** ppDispParent); |
| 226 | |
| 227 | // Descriptive Properties and Methods |
| 228 | |
| 229 | // Performs the object's default action. Not all objects have a default |
| 230 | // action. |
| 231 | |
| 232 | STDMETHODIMP accDoDefaultAction(VARIANT varID); |
| 233 | |
| 234 | // Retrieves a string that describes the object's default action. |
| 235 | // Not all objects have a default action. |
| 236 | |
| 237 | STDMETHODIMP get_accDefaultAction ( VARIANT varID, BSTR* pszDefaultAction); |
| 238 | |
| 239 | // Retrieves a string that describes the visual appearance of the specified object. |
| 240 | // Not all objects have a description. |
| 241 | |
| 242 | STDMETHODIMP get_accDescription ( VARIANT varID, BSTR* pszDescription); |
| 243 | |
| 244 | // Retrieves an object's Help property string. |
| 245 | // Not all objects support this property. |
| 246 | |
| 247 | STDMETHODIMP get_accHelp ( VARIANT varID, BSTR* pszHelp); |
| 248 | |
| 249 | // Retrieves the full path of the WinHelp file associated with the specified |
| 250 | // object and the identifier of the appropriate topic within that file. |
| 251 | // Not all objects support this property. |
| 252 | |
| 253 | STDMETHODIMP get_accHelpTopic ( BSTR* pszHelpFile, VARIANT varChild, long* pidTopic); |
| 254 | |
| 255 | // Retrieves the specified object's shortcut key or access key, also known as |
| 256 | // the mnemonic. All objects that have a shortcut key or access key support |
| 257 | // this property. |
| 258 | |
| 259 | STDMETHODIMP get_accKeyboardShortcut ( VARIANT varID, BSTR* pszKeyboardShortcut); |
| 260 | |
| 261 | // Retrieves the name of the specified object. |
| 262 | // All objects support this property. |
| 263 | |
| 264 | STDMETHODIMP get_accName ( VARIANT varID, BSTR* pszName); |
| 265 | |
| 266 | // Retrieves information that describes the role of the specified object. |
| 267 | // All objects support this property. |
| 268 | |
| 269 | STDMETHODIMP get_accRole ( VARIANT varID, VARIANT* pVarRole); |
| 270 | |
| 271 | // Retrieves the current state of the specified object. |
| 272 | // All objects support this property. |
| 273 | |
| 274 | STDMETHODIMP get_accState ( VARIANT varID, VARIANT* pVarState); |
| 275 | |
| 276 | // Retrieves the value of the specified object. |
| 277 | // Not all objects have a value. |
| 278 | |
| 279 | STDMETHODIMP get_accValue ( VARIANT varID, BSTR* pszValue); |
| 280 | |
| 281 | // Selection and Focus |
| 282 | |
| 283 | // Modifies the selection or moves the keyboard focus of the |
| 284 | // specified object. All objects that select or receive the |
| 285 | // keyboard focus must support this method. |
| 286 | |
| 287 | STDMETHODIMP accSelect ( long flagsSelect, VARIANT varID ); |
| 288 | |
| 289 | // Retrieves the object that has the keyboard focus. All objects |
| 290 | // that receive the keyboard focus must support this property. |
| 291 | |
| 292 | STDMETHODIMP get_accFocus ( VARIANT* pVarID); |
| 293 | |
| 294 | // Retrieves the selected children of this object. All objects |
| 295 | // selected must support this property. |
| 296 | |
| 297 | STDMETHODIMP get_accSelection ( VARIANT * pVarChildren); |
| 298 | |
| 299 | // Obsolete |
| 300 | |
| 301 | STDMETHODIMP put_accName(VARIANT WXUNUSED(varChild), BSTR WXUNUSED(szName)) { return E_FAIL; } |
| 302 | STDMETHODIMP put_accValue(VARIANT WXUNUSED(varChild), BSTR WXUNUSED(szName)) { return E_FAIL; } |
| 303 | |
| 304 | // IDispatch |
| 305 | |
| 306 | // Get type info |
| 307 | |
| 308 | STDMETHODIMP GetTypeInfo(unsigned int typeInfo, LCID lcid, ITypeInfo** ppTypeInfo); |
| 309 | |
| 310 | // Get type info count |
| 311 | |
| 312 | STDMETHODIMP GetTypeInfoCount(unsigned int* typeInfoCount); |
| 313 | |
| 314 | // Get ids of names |
| 315 | |
| 316 | STDMETHODIMP GetIDsOfNames(REFIID riid, OLECHAR** names, unsigned int cNames, |
| 317 | LCID lcid, DISPID* dispId); |
| 318 | |
| 319 | // Invoke |
| 320 | |
| 321 | STDMETHODIMP Invoke(DISPID dispIdMember, REFIID riid, LCID lcid, |
| 322 | WORD wFlags, DISPPARAMS *pDispParams, |
| 323 | VARIANT *pVarResult, EXCEPINFO *pExcepInfo, |
| 324 | unsigned int *puArgErr ); |
| 325 | |
| 326 | // Helpers |
| 327 | |
| 328 | // Gets the standard IAccessible interface for the given child or object. |
| 329 | // Call Release if this is non-NULL. |
| 330 | IAccessible* GetChildStdAccessible(int id); |
| 331 | |
| 332 | // Gets the IAccessible interface for the given child or object. |
| 333 | // Call Release if this is non-NULL. |
| 334 | IAccessible* GetChildAccessible(int id); |
| 335 | |
| 336 | private: |
| 337 | wxAccessible *m_pAccessible; // pointer to C++ class we belong to |
| 338 | |
| 339 | DECLARE_NO_COPY_CLASS(wxIAccessible) |
| 340 | }; |
| 341 | |
| 342 | // ============================================================================ |
| 343 | // Implementation |
| 344 | // ============================================================================ |
| 345 | |
| 346 | // ---------------------------------------------------------------------------- |
| 347 | // wxIAccessible implementation |
| 348 | // ---------------------------------------------------------------------------- |
| 349 | BEGIN_IID_TABLE(wxIAccessible) |
| 350 | ADD_IID(Unknown) |
| 351 | ADD_IID(Accessible) |
| 352 | ADD_IID(Dispatch) |
| 353 | END_IID_TABLE; |
| 354 | |
| 355 | IMPLEMENT_IUNKNOWN_METHODS(wxIAccessible) |
| 356 | |
| 357 | wxIAccessible::wxIAccessible(wxAccessible *pAccessible) |
| 358 | { |
| 359 | wxASSERT( pAccessible != NULL ); |
| 360 | |
| 361 | m_pAccessible = pAccessible; |
| 362 | } |
| 363 | |
| 364 | // Retrieves the child element or child object at a given point on the screen. |
| 365 | // All visual objects support this method; sound objects do not support it. |
| 366 | |
| 367 | STDMETHODIMP wxIAccessible::accHitTest(long xLeft, long yLeft, VARIANT* pVarID) |
| 368 | { |
| 369 | wxLogTrace(wxT("access"), wxT("accHitTest")); |
| 370 | wxASSERT (m_pAccessible != NULL); |
| 371 | if (!m_pAccessible) |
| 372 | return E_FAIL; |
| 373 | |
| 374 | wxAccessible* childObject = NULL; |
| 375 | int childId = 0; |
| 376 | VariantInit(pVarID); |
| 377 | |
| 378 | wxAccStatus status = m_pAccessible->HitTest(wxPoint(xLeft, yLeft), & childId, & childObject); |
| 379 | |
| 380 | if (status == wxACC_FAIL) |
| 381 | return E_FAIL; |
| 382 | |
| 383 | if (status == wxACC_NOT_IMPLEMENTED) |
| 384 | { |
| 385 | // Use standard interface instead. |
| 386 | IAccessible* stdInterface = (IAccessible*)m_pAccessible->GetIAccessibleStd(); |
| 387 | if (!stdInterface) |
| 388 | return E_NOTIMPL; |
| 389 | else |
| 390 | return stdInterface->accHitTest(xLeft, yLeft, pVarID); |
| 391 | } |
| 392 | |
| 393 | if (childObject) |
| 394 | { |
| 395 | if (childObject == m_pAccessible) |
| 396 | { |
| 397 | pVarID->vt = VT_I4; |
| 398 | pVarID->lVal = CHILDID_SELF; |
| 399 | return S_OK; |
| 400 | } |
| 401 | else |
| 402 | { |
| 403 | wxIAccessible* childIA = childObject->GetIAccessible(); |
| 404 | if (!childIA) |
| 405 | return E_NOTIMPL; |
| 406 | |
| 407 | if (childIA->QueryInterface(IID_IDispatch, (LPVOID*) & pVarID->pdispVal) != S_OK) |
| 408 | return E_FAIL; |
| 409 | |
| 410 | pVarID->vt = VT_DISPATCH; |
| 411 | return S_OK; |
| 412 | } |
| 413 | } |
| 414 | else if (childId > 0) |
| 415 | { |
| 416 | pVarID->vt = VT_I4; |
| 417 | pVarID->lVal = childId; |
| 418 | return S_OK; |
| 419 | } |
| 420 | else |
| 421 | { |
| 422 | pVarID->vt = VT_EMPTY; |
| 423 | return S_FALSE; |
| 424 | } |
| 425 | |
| 426 | #if 0 |
| 427 | // all cases above already cause some return action so below line |
| 428 | // is unreachable and cause unnecessary warning |
| 429 | return E_NOTIMPL; |
| 430 | #endif |
| 431 | } |
| 432 | |
| 433 | // Retrieves the specified object's current screen location. All visual objects must |
| 434 | // support this method; sound objects do not support it. |
| 435 | |
| 436 | STDMETHODIMP wxIAccessible::accLocation ( long* pxLeft, long* pyTop, long* pcxWidth, long* pcyHeight, VARIANT varID) |
| 437 | { |
| 438 | wxLogTrace(wxT("access"), wxT("accLocation")); |
| 439 | wxASSERT (m_pAccessible != NULL); |
| 440 | if (!m_pAccessible) |
| 441 | return E_FAIL; |
| 442 | |
| 443 | wxRect rect; |
| 444 | |
| 445 | wxAccStatus status = m_pAccessible->GetLocation(rect, varID.lVal); |
| 446 | if (status == wxACC_FAIL) |
| 447 | return E_FAIL; |
| 448 | |
| 449 | if (status == wxACC_NOT_IMPLEMENTED) |
| 450 | { |
| 451 | // Try to use child object directly. |
| 452 | if (varID.lVal > 0) |
| 453 | { |
| 454 | IAccessible* childAccessible = GetChildAccessible(varID.lVal); |
| 455 | if (childAccessible) |
| 456 | { |
| 457 | varID.lVal = 0; |
| 458 | HRESULT hResult = childAccessible->accLocation(pxLeft, pyTop, pcxWidth, pcyHeight, varID); |
| 459 | childAccessible->Release(); |
| 460 | return hResult; |
| 461 | } |
| 462 | else if (m_pAccessible->GetIAccessibleStd()) |
| 463 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->accLocation(pxLeft, pyTop, pcxWidth, pcyHeight, varID); |
| 464 | } |
| 465 | else if (m_pAccessible->GetIAccessibleStd()) |
| 466 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->accLocation(pxLeft, pyTop, pcxWidth, pcyHeight, varID); |
| 467 | } |
| 468 | else |
| 469 | { |
| 470 | *pxLeft = rect.x; |
| 471 | *pyTop = rect.y; |
| 472 | *pcxWidth = rect.width; |
| 473 | *pcyHeight = rect.height; |
| 474 | return S_OK; |
| 475 | } |
| 476 | |
| 477 | return E_NOTIMPL; |
| 478 | } |
| 479 | |
| 480 | // Traverses to another user interface element within a container and retrieves the object. |
| 481 | // All visual objects must support this method. |
| 482 | |
| 483 | STDMETHODIMP wxIAccessible::accNavigate ( long navDir, VARIANT varStart, VARIANT* pVarEnd) |
| 484 | { |
| 485 | wxASSERT (m_pAccessible != NULL); |
| 486 | if (!m_pAccessible) |
| 487 | return E_FAIL; |
| 488 | wxLogTrace(wxT("access"), wxString(wxT("accNavigate for ")) + m_pAccessible->GetWindow()->GetClassInfo()->GetClassName()); |
| 489 | |
| 490 | if ((varStart.vt != VT_I4 && varStart.vt != VT_EMPTY) |
| 491 | #if 0 |
| 492 | // according to MSDN and sources varStart.vt is unsigned |
| 493 | // so below line cause warning "Condition is always false" |
| 494 | || varStart.vt < 0 |
| 495 | #endif |
| 496 | ) |
| 497 | { |
| 498 | wxLogTrace(wxT("access"), wxT("Invalid arg for accNavigate")); |
| 499 | return E_INVALIDARG; |
| 500 | } |
| 501 | |
| 502 | wxAccessible* elementObject = NULL; |
| 503 | int elementId = 0; |
| 504 | VariantInit(pVarEnd); |
| 505 | wxNavDir navDirWX = wxNAVDIR_FIRSTCHILD; |
| 506 | |
| 507 | wxString navStr; |
| 508 | |
| 509 | switch (navDir) |
| 510 | { |
| 511 | case NAVDIR_DOWN: |
| 512 | navDirWX = wxNAVDIR_DOWN; |
| 513 | navStr = wxT("wxNAVDIR_DOWN"); |
| 514 | break; |
| 515 | |
| 516 | case NAVDIR_FIRSTCHILD: |
| 517 | navDirWX = wxNAVDIR_FIRSTCHILD; |
| 518 | navStr = wxT("wxNAVDIR_FIRSTCHILD"); |
| 519 | break; |
| 520 | |
| 521 | case NAVDIR_LASTCHILD: |
| 522 | navDirWX = wxNAVDIR_LASTCHILD; |
| 523 | navStr = wxT("wxNAVDIR_LASTCHILD"); |
| 524 | break; |
| 525 | |
| 526 | case NAVDIR_LEFT: |
| 527 | navDirWX = wxNAVDIR_LEFT; |
| 528 | navStr = wxT("wxNAVDIR_LEFT"); |
| 529 | break; |
| 530 | |
| 531 | case NAVDIR_NEXT: |
| 532 | navDirWX = wxNAVDIR_NEXT; |
| 533 | navStr = wxT("wxNAVDIR_NEXT"); |
| 534 | break; |
| 535 | |
| 536 | case NAVDIR_PREVIOUS: |
| 537 | navDirWX = wxNAVDIR_PREVIOUS; |
| 538 | navStr = wxT("wxNAVDIR_PREVIOUS"); |
| 539 | break; |
| 540 | |
| 541 | case NAVDIR_RIGHT: |
| 542 | navDirWX = wxNAVDIR_RIGHT; |
| 543 | navStr = wxT("wxNAVDIR_RIGHT"); |
| 544 | break; |
| 545 | |
| 546 | case NAVDIR_UP: |
| 547 | navDirWX = wxNAVDIR_UP; |
| 548 | navStr = wxT("wxNAVDIR_UP"); |
| 549 | break; |
| 550 | default: |
| 551 | { |
| 552 | wxLogTrace(wxT("access"), wxT("Unknown NAVDIR symbol")); |
| 553 | break; |
| 554 | } |
| 555 | } |
| 556 | wxLogTrace(wxT("access"), navStr); |
| 557 | |
| 558 | wxAccStatus status = m_pAccessible->Navigate(navDirWX, varStart.lVal, & elementId, |
| 559 | & elementObject); |
| 560 | |
| 561 | if (status == wxACC_FAIL) |
| 562 | { |
| 563 | wxLogTrace(wxT("access"), wxT("wxAccessible::Navigate failed")); |
| 564 | return E_FAIL; |
| 565 | } |
| 566 | |
| 567 | if (status == wxACC_FALSE) |
| 568 | { |
| 569 | wxLogTrace(wxT("access"), wxT("wxAccessible::Navigate found no object in this direction")); |
| 570 | return S_FALSE; |
| 571 | } |
| 572 | |
| 573 | if (status == wxACC_NOT_IMPLEMENTED) |
| 574 | { |
| 575 | wxLogTrace(wxT("access"), wxT("Navigate not implemented")); |
| 576 | |
| 577 | // Try to use child object directly. |
| 578 | if (varStart.vt == VT_I4 && varStart.lVal > 0) |
| 579 | { |
| 580 | IAccessible* childAccessible = GetChildAccessible(varStart.lVal); |
| 581 | if (childAccessible) |
| 582 | { |
| 583 | varStart.lVal = 0; |
| 584 | HRESULT hResult = childAccessible->accNavigate(navDir, varStart, pVarEnd); |
| 585 | childAccessible->Release(); |
| 586 | return hResult; |
| 587 | } |
| 588 | else if (m_pAccessible->GetIAccessibleStd()) |
| 589 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->accNavigate(navDir, varStart, pVarEnd); |
| 590 | } |
| 591 | else if (m_pAccessible->GetIAccessibleStd()) |
| 592 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->accNavigate(navDir, varStart, pVarEnd); |
| 593 | } |
| 594 | else |
| 595 | { |
| 596 | if (elementObject) |
| 597 | { |
| 598 | wxLogTrace(wxT("access"), wxT("Getting wxIAccessible and calling QueryInterface for Navigate")); |
| 599 | wxIAccessible* objectIA = elementObject->GetIAccessible(); |
| 600 | if (!objectIA) |
| 601 | { |
| 602 | wxLogTrace(wxT("access"), wxT("No wxIAccessible")); |
| 603 | return E_FAIL; |
| 604 | } |
| 605 | |
| 606 | HRESULT hResult = objectIA->QueryInterface(IID_IDispatch, (LPVOID*) & pVarEnd->pdispVal); |
| 607 | if (hResult != S_OK) |
| 608 | { |
| 609 | wxLogTrace(wxT("access"), wxT("QueryInterface failed")); |
| 610 | return E_FAIL; |
| 611 | } |
| 612 | |
| 613 | wxLogTrace(wxT("access"), wxT("Called QueryInterface for Navigate")); |
| 614 | pVarEnd->vt = VT_DISPATCH; |
| 615 | return S_OK; |
| 616 | } |
| 617 | else if (elementId > 0) |
| 618 | { |
| 619 | wxLogTrace(wxT("access"), wxT("Returning element id from Navigate")); |
| 620 | pVarEnd->vt = VT_I4; |
| 621 | pVarEnd->lVal = elementId; |
| 622 | return S_OK; |
| 623 | } |
| 624 | else |
| 625 | { |
| 626 | wxLogTrace(wxT("access"), wxT("No object in accNavigate")); |
| 627 | pVarEnd->vt = VT_EMPTY; |
| 628 | return S_FALSE; |
| 629 | } |
| 630 | } |
| 631 | |
| 632 | wxLogTrace(wxT("access"), wxT("Failing Navigate")); |
| 633 | return E_NOTIMPL; |
| 634 | } |
| 635 | |
| 636 | // Retrieves the address of an IDispatch interface for the specified child. |
| 637 | // All objects must support this property. |
| 638 | |
| 639 | STDMETHODIMP wxIAccessible::get_accChild ( VARIANT varChildID, IDispatch** ppDispChild) |
| 640 | { |
| 641 | wxLogTrace(wxT("access"), wxT("get_accChild")); |
| 642 | wxASSERT (m_pAccessible != NULL); |
| 643 | if (!m_pAccessible) |
| 644 | return E_FAIL; |
| 645 | |
| 646 | if (varChildID.vt != VT_I4) |
| 647 | { |
| 648 | wxLogTrace(wxT("access"), wxT("Invalid arg for get_accChild")); |
| 649 | return E_INVALIDARG; |
| 650 | } |
| 651 | |
| 652 | if (varChildID.lVal == CHILDID_SELF) |
| 653 | { |
| 654 | *ppDispChild = this; |
| 655 | AddRef(); |
| 656 | return S_OK; |
| 657 | } |
| 658 | |
| 659 | wxAccessible* child = NULL; |
| 660 | |
| 661 | wxAccStatus status = m_pAccessible->GetChild(varChildID.lVal, & child); |
| 662 | if (status == wxACC_FAIL) |
| 663 | { |
| 664 | wxLogTrace(wxT("access"), wxT("GetChild failed")); |
| 665 | return E_FAIL; |
| 666 | } |
| 667 | |
| 668 | if (status == wxACC_NOT_IMPLEMENTED) |
| 669 | { |
| 670 | // Use standard interface instead. |
| 671 | IAccessible* stdInterface = (IAccessible*)m_pAccessible->GetIAccessibleStd(); |
| 672 | if (!stdInterface) |
| 673 | return E_NOTIMPL; |
| 674 | else |
| 675 | { |
| 676 | wxLogTrace(wxT("access"), wxT("Using standard interface for get_accChild")); |
| 677 | return stdInterface->get_accChild (varChildID, ppDispChild); |
| 678 | } |
| 679 | } |
| 680 | else |
| 681 | { |
| 682 | if (child) |
| 683 | { |
| 684 | wxIAccessible* objectIA = child->GetIAccessible(); |
| 685 | if (!objectIA) |
| 686 | return E_NOTIMPL; |
| 687 | |
| 688 | if (objectIA->QueryInterface(IID_IDispatch, (LPVOID*) ppDispChild) != S_OK) |
| 689 | { |
| 690 | wxLogTrace(wxT("access"), wxT("QueryInterface failed in get_accChild")); |
| 691 | return E_FAIL; |
| 692 | } |
| 693 | |
| 694 | return S_OK; |
| 695 | } |
| 696 | else |
| 697 | { |
| 698 | wxLogTrace(wxT("access"), wxT("Not an accessible object")); |
| 699 | return S_FALSE; // Indicates it's not an accessible object |
| 700 | } |
| 701 | } |
| 702 | |
| 703 | #if 0 |
| 704 | // all cases above already cause some return action so below line |
| 705 | // is unreachable and cause unnecessary warning |
| 706 | return E_NOTIMPL; |
| 707 | #endif |
| 708 | } |
| 709 | |
| 710 | // Retrieves the number of children that belong to this object. |
| 711 | // All objects must support this property. |
| 712 | |
| 713 | STDMETHODIMP wxIAccessible::get_accChildCount ( long* pCountChildren) |
| 714 | { |
| 715 | wxLogTrace(wxT("access"), wxT("get_accChildCount")); |
| 716 | wxASSERT (m_pAccessible != NULL); |
| 717 | if (!m_pAccessible) |
| 718 | return E_FAIL; |
| 719 | |
| 720 | int childCount = 0; |
| 721 | wxAccStatus status = m_pAccessible->GetChildCount(& childCount); |
| 722 | if (status == wxACC_FAIL) |
| 723 | return E_FAIL; |
| 724 | |
| 725 | if (status == wxACC_NOT_IMPLEMENTED) |
| 726 | { |
| 727 | // Use standard interface instead. |
| 728 | IAccessible* stdInterface = (IAccessible*)m_pAccessible->GetIAccessibleStd(); |
| 729 | if (!stdInterface) |
| 730 | return E_NOTIMPL; |
| 731 | else |
| 732 | { |
| 733 | wxLogTrace(wxT("access"), wxT("Using standard interface for get_accChildCount")); |
| 734 | HRESULT res = stdInterface->get_accChildCount (pCountChildren); |
| 735 | wxString str; |
| 736 | str.Printf(wxT("Number of children was %d"), (int) (*pCountChildren)); |
| 737 | wxLogTrace(wxT("access"), str); |
| 738 | return res; |
| 739 | } |
| 740 | } |
| 741 | else |
| 742 | { |
| 743 | * pCountChildren = (long) childCount; |
| 744 | return S_OK; |
| 745 | } |
| 746 | |
| 747 | #if 0 |
| 748 | // all cases above already cause some return action so below line |
| 749 | // is unreachable and cause unnecessary warning |
| 750 | return E_NOTIMPL; |
| 751 | #endif |
| 752 | } |
| 753 | |
| 754 | // Retrieves the IDispatch interface of the object's parent. |
| 755 | // All objects support this property. |
| 756 | |
| 757 | STDMETHODIMP wxIAccessible::get_accParent ( IDispatch** ppDispParent) |
| 758 | { |
| 759 | wxLogTrace(wxT("access"), wxT("get_accParent")); |
| 760 | wxASSERT (m_pAccessible != NULL); |
| 761 | if (!m_pAccessible) |
| 762 | return E_FAIL; |
| 763 | |
| 764 | wxAccessible* parent = NULL; |
| 765 | wxAccStatus status = m_pAccessible->GetParent(& parent); |
| 766 | |
| 767 | if (status == wxACC_FAIL) |
| 768 | return E_FAIL; |
| 769 | |
| 770 | // It doesn't seem acceptable to return S_FALSE with a NULL |
| 771 | // ppDispParent, so if we have no wxWidgets parent, we leave |
| 772 | // it to the standard interface. |
| 773 | if (status == wxACC_NOT_IMPLEMENTED || !parent) |
| 774 | { |
| 775 | wxLogTrace(wxT("access"), wxT("Using standard interface to get the parent.")); |
| 776 | // Use standard interface instead. |
| 777 | IAccessible* stdInterface = (IAccessible*)m_pAccessible->GetIAccessibleStd(); |
| 778 | if (!stdInterface) |
| 779 | return E_NOTIMPL; |
| 780 | else |
| 781 | return stdInterface->get_accParent (ppDispParent); |
| 782 | } |
| 783 | else |
| 784 | { |
| 785 | if (parent) |
| 786 | { |
| 787 | wxIAccessible* objectIA = parent->GetIAccessible(); |
| 788 | if (!objectIA) |
| 789 | return E_FAIL; |
| 790 | |
| 791 | wxLogTrace(wxT("access"), wxT("About to call QueryInterface")); |
| 792 | if (objectIA->QueryInterface(IID_IDispatch, (LPVOID*) ppDispParent) != S_OK) |
| 793 | { |
| 794 | wxLogTrace(wxT("access"), wxT("Failed QueryInterface")); |
| 795 | return E_FAIL; |
| 796 | } |
| 797 | |
| 798 | wxLogTrace(wxT("access"), wxT("Returning S_OK for get_accParent")); |
| 799 | return S_OK; |
| 800 | } |
| 801 | else |
| 802 | { |
| 803 | // This doesn't seem to be allowed, despite the documentation, |
| 804 | // so we handle it higher up by using the standard interface. |
| 805 | wxLogTrace(wxT("access"), wxT("Returning NULL parent because there was none")); |
| 806 | *ppDispParent = NULL; |
| 807 | return S_FALSE; |
| 808 | } |
| 809 | } |
| 810 | |
| 811 | #if 0 |
| 812 | // all cases above already cause some return action so below line |
| 813 | // is unreachable and cause unnecessary warning |
| 814 | return E_NOTIMPL; |
| 815 | #endif |
| 816 | } |
| 817 | |
| 818 | // Performs the object's default action. Not all objects have a default |
| 819 | // action. |
| 820 | |
| 821 | STDMETHODIMP wxIAccessible::accDoDefaultAction(VARIANT varID) |
| 822 | { |
| 823 | wxLogTrace(wxT("access"), wxT("accDoDefaultAction")); |
| 824 | wxASSERT (m_pAccessible != NULL); |
| 825 | if (!m_pAccessible) |
| 826 | return E_FAIL; |
| 827 | |
| 828 | if (varID.vt != VT_I4) |
| 829 | { |
| 830 | wxLogTrace(wxT("access"), wxT("Invalid arg for accDoDefaultAction")); |
| 831 | return E_INVALIDARG; |
| 832 | } |
| 833 | |
| 834 | wxAccStatus status = m_pAccessible->DoDefaultAction(varID.lVal); |
| 835 | if (status == wxACC_FAIL) |
| 836 | return E_FAIL; |
| 837 | |
| 838 | if (status == wxACC_NOT_SUPPORTED) |
| 839 | return DISP_E_MEMBERNOTFOUND; |
| 840 | |
| 841 | if (status == wxACC_NOT_IMPLEMENTED) |
| 842 | { |
| 843 | // Try to use child object directly. |
| 844 | if (varID.lVal > 0) |
| 845 | { |
| 846 | IAccessible* childAccessible = GetChildAccessible(varID.lVal); |
| 847 | if (childAccessible) |
| 848 | { |
| 849 | varID.lVal = 0; |
| 850 | HRESULT hResult = childAccessible->accDoDefaultAction(varID); |
| 851 | childAccessible->Release(); |
| 852 | return hResult; |
| 853 | } |
| 854 | else if (m_pAccessible->GetIAccessibleStd()) |
| 855 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->accDoDefaultAction(varID); |
| 856 | } |
| 857 | else if (m_pAccessible->GetIAccessibleStd()) |
| 858 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->accDoDefaultAction(varID); |
| 859 | } |
| 860 | return E_FAIL; |
| 861 | } |
| 862 | |
| 863 | // Retrieves a string that describes the object's default action. |
| 864 | // Not all objects have a default action. |
| 865 | |
| 866 | STDMETHODIMP wxIAccessible::get_accDefaultAction ( VARIANT varID, BSTR* pszDefaultAction) |
| 867 | { |
| 868 | wxLogTrace(wxT("access"), wxT("get_accDefaultAction")); |
| 869 | wxASSERT (m_pAccessible != NULL); |
| 870 | if (!m_pAccessible) |
| 871 | return E_FAIL; |
| 872 | |
| 873 | if (varID.vt != VT_I4) |
| 874 | { |
| 875 | wxLogTrace(wxT("access"), wxT("Invalid arg for get_accDefaultAction")); |
| 876 | return E_INVALIDARG; |
| 877 | } |
| 878 | |
| 879 | wxString defaultAction; |
| 880 | wxAccStatus status = m_pAccessible->GetDefaultAction(varID.lVal, & defaultAction); |
| 881 | if (status == wxACC_FAIL) |
| 882 | return E_FAIL; |
| 883 | |
| 884 | if (status == wxACC_NOT_SUPPORTED) |
| 885 | return DISP_E_MEMBERNOTFOUND; |
| 886 | |
| 887 | if (status == wxACC_NOT_IMPLEMENTED) |
| 888 | { |
| 889 | // Try to use child object directly. |
| 890 | if (varID.lVal > 0) |
| 891 | { |
| 892 | IAccessible* childAccessible = GetChildAccessible(varID.lVal); |
| 893 | if (childAccessible) |
| 894 | { |
| 895 | varID.lVal = 0; |
| 896 | HRESULT hResult = childAccessible->get_accDefaultAction(varID, pszDefaultAction); |
| 897 | childAccessible->Release(); |
| 898 | return hResult; |
| 899 | } |
| 900 | else if (m_pAccessible->GetIAccessibleStd()) |
| 901 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->get_accDefaultAction(varID, pszDefaultAction); |
| 902 | } |
| 903 | else if (m_pAccessible->GetIAccessibleStd()) |
| 904 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->get_accDefaultAction(varID, pszDefaultAction); |
| 905 | } |
| 906 | else |
| 907 | { |
| 908 | if (defaultAction.IsEmpty()) |
| 909 | { |
| 910 | * pszDefaultAction = NULL; |
| 911 | return S_FALSE; |
| 912 | } |
| 913 | else |
| 914 | { |
| 915 | wxBasicString basicString(defaultAction); |
| 916 | * pszDefaultAction = basicString.Get(); |
| 917 | return S_OK; |
| 918 | } |
| 919 | } |
| 920 | return E_FAIL; |
| 921 | } |
| 922 | |
| 923 | // Retrieves a string that describes the visual appearance of the specified object. |
| 924 | // Not all objects have a description. |
| 925 | |
| 926 | STDMETHODIMP wxIAccessible::get_accDescription ( VARIANT varID, BSTR* pszDescription) |
| 927 | { |
| 928 | wxLogTrace(wxT("access"), wxT("get_accDescription")); |
| 929 | wxASSERT (m_pAccessible != NULL); |
| 930 | if (!m_pAccessible) |
| 931 | return E_FAIL; |
| 932 | |
| 933 | if (varID.vt != VT_I4) |
| 934 | { |
| 935 | wxLogTrace(wxT("access"), wxT("Invalid arg for get_accDescription")); |
| 936 | return E_INVALIDARG; |
| 937 | } |
| 938 | |
| 939 | wxString description; |
| 940 | wxAccStatus status = m_pAccessible->GetDescription(varID.lVal, & description); |
| 941 | if (status == wxACC_FAIL) |
| 942 | return E_FAIL; |
| 943 | |
| 944 | if (status == wxACC_NOT_IMPLEMENTED) |
| 945 | { |
| 946 | // Try to use child object directly. |
| 947 | if (varID.lVal > 0) |
| 948 | { |
| 949 | IAccessible* childAccessible = GetChildAccessible(varID.lVal); |
| 950 | if (childAccessible) |
| 951 | { |
| 952 | varID.lVal = 0; |
| 953 | HRESULT hResult = childAccessible->get_accDescription(varID, pszDescription); |
| 954 | childAccessible->Release(); |
| 955 | return hResult; |
| 956 | } |
| 957 | else if (m_pAccessible->GetIAccessibleStd()) |
| 958 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->get_accDescription(varID, pszDescription); |
| 959 | } |
| 960 | else if (m_pAccessible->GetIAccessibleStd()) |
| 961 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->get_accDescription(varID, pszDescription); |
| 962 | } |
| 963 | else |
| 964 | { |
| 965 | if (description.empty()) |
| 966 | { |
| 967 | * pszDescription = NULL; |
| 968 | return S_FALSE; |
| 969 | } |
| 970 | else |
| 971 | { |
| 972 | wxBasicString basicString(description); |
| 973 | * pszDescription = basicString.Get(); |
| 974 | return S_OK; |
| 975 | } |
| 976 | } |
| 977 | return E_NOTIMPL; |
| 978 | } |
| 979 | |
| 980 | // Retrieves an object's Help property string. |
| 981 | // Not all objects support this property. |
| 982 | |
| 983 | STDMETHODIMP wxIAccessible::get_accHelp ( VARIANT varID, BSTR* pszHelp) |
| 984 | { |
| 985 | wxLogTrace(wxT("access"), wxT("get_accHelp")); |
| 986 | wxASSERT (m_pAccessible != NULL); |
| 987 | if (!m_pAccessible) |
| 988 | return E_FAIL; |
| 989 | |
| 990 | if (varID.vt != VT_I4) |
| 991 | { |
| 992 | wxLogTrace(wxT("access"), wxT("Invalid arg for get_accHelp")); |
| 993 | return E_INVALIDARG; |
| 994 | } |
| 995 | |
| 996 | wxString helpString; |
| 997 | wxAccStatus status = m_pAccessible->GetHelpText(varID.lVal, & helpString); |
| 998 | if (status == wxACC_FAIL) |
| 999 | return E_FAIL; |
| 1000 | |
| 1001 | if (status == wxACC_NOT_IMPLEMENTED) |
| 1002 | { |
| 1003 | // Try to use child object directly. |
| 1004 | if (varID.lVal > 0) |
| 1005 | { |
| 1006 | IAccessible* childAccessible = GetChildAccessible(varID.lVal); |
| 1007 | if (childAccessible) |
| 1008 | { |
| 1009 | varID.lVal = 0; |
| 1010 | HRESULT hResult = childAccessible->get_accHelp(varID, pszHelp); |
| 1011 | childAccessible->Release(); |
| 1012 | return hResult; |
| 1013 | } |
| 1014 | else if (m_pAccessible->GetIAccessibleStd()) |
| 1015 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->get_accHelp(varID, pszHelp); |
| 1016 | } |
| 1017 | else if (m_pAccessible->GetIAccessibleStd()) |
| 1018 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->get_accHelp (varID, pszHelp); |
| 1019 | } |
| 1020 | else |
| 1021 | { |
| 1022 | if (helpString.empty()) |
| 1023 | { |
| 1024 | * pszHelp = NULL; |
| 1025 | return S_FALSE; |
| 1026 | } |
| 1027 | else |
| 1028 | { |
| 1029 | wxBasicString basicString(helpString); |
| 1030 | * pszHelp = basicString.Get(); |
| 1031 | return S_OK; |
| 1032 | } |
| 1033 | } |
| 1034 | return E_NOTIMPL; |
| 1035 | } |
| 1036 | |
| 1037 | // Retrieves the full path of the WinHelp file associated with the specified |
| 1038 | // object and the identifier of the appropriate topic within that file. |
| 1039 | // Not all objects support this property. |
| 1040 | // NOTE: not supported by wxWidgets at this time. Use |
| 1041 | // GetHelpText instead. |
| 1042 | |
| 1043 | STDMETHODIMP wxIAccessible::get_accHelpTopic ( BSTR* pszHelpFile, VARIANT varChild, long* pidTopic) |
| 1044 | { |
| 1045 | wxLogTrace(wxT("access"), wxT("get_accHelpTopic")); |
| 1046 | wxASSERT (m_pAccessible != NULL); |
| 1047 | if (!m_pAccessible) |
| 1048 | return E_FAIL; |
| 1049 | |
| 1050 | if (varChild.vt != VT_I4) |
| 1051 | { |
| 1052 | wxLogTrace(wxT("access"), wxT("Invalid arg for get_accHelpTopic")); |
| 1053 | return E_INVALIDARG; |
| 1054 | } |
| 1055 | |
| 1056 | wxAccStatus status = wxACC_NOT_IMPLEMENTED; |
| 1057 | if (status == wxACC_FAIL) |
| 1058 | return E_FAIL; |
| 1059 | |
| 1060 | if (status == wxACC_NOT_IMPLEMENTED) |
| 1061 | { |
| 1062 | // Try to use child object directly. |
| 1063 | if (varChild.lVal > 0) |
| 1064 | { |
| 1065 | IAccessible* childAccessible = GetChildAccessible(varChild.lVal); |
| 1066 | if (childAccessible) |
| 1067 | { |
| 1068 | varChild.lVal = 0; |
| 1069 | HRESULT hResult = childAccessible->get_accHelpTopic(pszHelpFile, varChild, pidTopic); |
| 1070 | childAccessible->Release(); |
| 1071 | return hResult; |
| 1072 | } |
| 1073 | else if (m_pAccessible->GetIAccessibleStd()) |
| 1074 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->get_accHelpTopic(pszHelpFile, varChild, pidTopic); |
| 1075 | } |
| 1076 | else if (m_pAccessible->GetIAccessibleStd()) |
| 1077 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->get_accHelpTopic (pszHelpFile, varChild, pidTopic); |
| 1078 | } |
| 1079 | return E_NOTIMPL; |
| 1080 | } |
| 1081 | |
| 1082 | // Retrieves the specified object's shortcut key or access key, also known as |
| 1083 | // the mnemonic. All objects that have a shortcut key or access key support |
| 1084 | // this property. |
| 1085 | |
| 1086 | STDMETHODIMP wxIAccessible::get_accKeyboardShortcut ( VARIANT varID, BSTR* pszKeyboardShortcut) |
| 1087 | { |
| 1088 | wxLogTrace(wxT("access"), wxT("get_accKeyboardShortcut")); |
| 1089 | *pszKeyboardShortcut = NULL; |
| 1090 | |
| 1091 | wxASSERT (m_pAccessible != NULL); |
| 1092 | if (!m_pAccessible) |
| 1093 | return E_FAIL; |
| 1094 | |
| 1095 | if (varID.vt != VT_I4) |
| 1096 | { |
| 1097 | wxLogTrace(wxT("access"), wxT("Invalid arg for get_accKeyboardShortcut")); |
| 1098 | return E_INVALIDARG; |
| 1099 | } |
| 1100 | |
| 1101 | wxString keyboardShortcut; |
| 1102 | wxAccStatus status = m_pAccessible->GetKeyboardShortcut(varID.lVal, & keyboardShortcut); |
| 1103 | if (status == wxACC_FAIL) |
| 1104 | return E_FAIL; |
| 1105 | |
| 1106 | if (status == wxACC_NOT_IMPLEMENTED) |
| 1107 | { |
| 1108 | // Try to use child object directly. |
| 1109 | if (varID.lVal > 0) |
| 1110 | { |
| 1111 | IAccessible* childAccessible = GetChildAccessible(varID.lVal); |
| 1112 | if (childAccessible) |
| 1113 | { |
| 1114 | varID.lVal = 0; |
| 1115 | HRESULT hResult = childAccessible->get_accKeyboardShortcut(varID, pszKeyboardShortcut); |
| 1116 | childAccessible->Release(); |
| 1117 | return hResult; |
| 1118 | } |
| 1119 | else if (m_pAccessible->GetIAccessibleStd()) |
| 1120 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->get_accKeyboardShortcut(varID, pszKeyboardShortcut); |
| 1121 | } |
| 1122 | else if (m_pAccessible->GetIAccessibleStd()) |
| 1123 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->get_accKeyboardShortcut (varID, pszKeyboardShortcut); |
| 1124 | } |
| 1125 | else |
| 1126 | { |
| 1127 | if (keyboardShortcut.empty()) |
| 1128 | { |
| 1129 | * pszKeyboardShortcut = NULL; |
| 1130 | return S_FALSE; |
| 1131 | } |
| 1132 | else |
| 1133 | { |
| 1134 | wxBasicString basicString(keyboardShortcut); |
| 1135 | * pszKeyboardShortcut = basicString.Get(); |
| 1136 | return S_OK; |
| 1137 | } |
| 1138 | } |
| 1139 | return E_NOTIMPL; |
| 1140 | } |
| 1141 | |
| 1142 | // Retrieves the name of the specified object. |
| 1143 | // All objects support this property. |
| 1144 | |
| 1145 | STDMETHODIMP wxIAccessible::get_accName ( VARIANT varID, BSTR* pszName) |
| 1146 | { |
| 1147 | wxLogTrace(wxT("access"), wxT("get_accName")); |
| 1148 | *pszName = NULL; |
| 1149 | |
| 1150 | wxASSERT (m_pAccessible != NULL); |
| 1151 | if (!m_pAccessible) |
| 1152 | return E_FAIL; |
| 1153 | |
| 1154 | if (varID.vt != VT_I4) |
| 1155 | { |
| 1156 | wxLogTrace(wxT("access"), wxT("Invalid arg for get_accName")); |
| 1157 | return E_INVALIDARG; |
| 1158 | } |
| 1159 | |
| 1160 | wxString name; |
| 1161 | |
| 1162 | wxAccStatus status = m_pAccessible->GetName(varID.lVal, & name); |
| 1163 | |
| 1164 | if (status == wxACC_FAIL) |
| 1165 | return E_FAIL; |
| 1166 | |
| 1167 | if (status == wxACC_NOT_IMPLEMENTED) |
| 1168 | { |
| 1169 | // Try to use child object directly. |
| 1170 | if (varID.lVal > 0) |
| 1171 | { |
| 1172 | IAccessible* childAccessible = GetChildAccessible(varID.lVal); |
| 1173 | if (childAccessible) |
| 1174 | { |
| 1175 | varID.lVal = 0; |
| 1176 | HRESULT hResult = childAccessible->get_accName(varID, pszName); |
| 1177 | childAccessible->Release(); |
| 1178 | return hResult; |
| 1179 | } |
| 1180 | else if (m_pAccessible->GetIAccessibleStd()) |
| 1181 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->get_accName(varID, pszName); |
| 1182 | } |
| 1183 | else if (m_pAccessible->GetIAccessibleStd()) |
| 1184 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->get_accName (varID, pszName); |
| 1185 | } |
| 1186 | else |
| 1187 | { |
| 1188 | wxBasicString basicString(name); |
| 1189 | *pszName = basicString.Get(); |
| 1190 | return S_OK; |
| 1191 | } |
| 1192 | return E_NOTIMPL; |
| 1193 | } |
| 1194 | |
| 1195 | // Retrieves information that describes the role of the specified object. |
| 1196 | // All objects support this property. |
| 1197 | |
| 1198 | STDMETHODIMP wxIAccessible::get_accRole ( VARIANT varID, VARIANT* pVarRole) |
| 1199 | { |
| 1200 | wxLogTrace(wxT("access"), wxT("get_accRole")); |
| 1201 | wxASSERT (m_pAccessible != NULL); |
| 1202 | if (!m_pAccessible) |
| 1203 | return E_FAIL; |
| 1204 | |
| 1205 | if (varID.vt != VT_I4) |
| 1206 | { |
| 1207 | wxLogTrace(wxT("access"), wxT("Invalid arg for get_accRole")); |
| 1208 | return E_INVALIDARG; |
| 1209 | } |
| 1210 | |
| 1211 | VariantInit(pVarRole); |
| 1212 | |
| 1213 | wxAccRole role = wxROLE_NONE; |
| 1214 | |
| 1215 | wxAccStatus status = m_pAccessible->GetRole(varID.lVal, & role); |
| 1216 | |
| 1217 | if (status == wxACC_FAIL) |
| 1218 | return E_FAIL; |
| 1219 | |
| 1220 | if (status == wxACC_NOT_IMPLEMENTED) |
| 1221 | { |
| 1222 | // Try to use child object directly. |
| 1223 | if (varID.lVal > 0) |
| 1224 | { |
| 1225 | IAccessible* childAccessible = GetChildAccessible(varID.lVal); |
| 1226 | if (childAccessible) |
| 1227 | { |
| 1228 | varID.lVal = 0; |
| 1229 | HRESULT hResult = childAccessible->get_accRole(varID, pVarRole); |
| 1230 | childAccessible->Release(); |
| 1231 | return hResult; |
| 1232 | } |
| 1233 | else if (m_pAccessible->GetIAccessibleStd()) |
| 1234 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->get_accRole(varID, pVarRole); |
| 1235 | } |
| 1236 | else if (m_pAccessible->GetIAccessibleStd()) |
| 1237 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->get_accRole (varID, pVarRole); |
| 1238 | } |
| 1239 | else |
| 1240 | { |
| 1241 | if (role == wxROLE_NONE) |
| 1242 | { |
| 1243 | pVarRole->vt = VT_EMPTY; |
| 1244 | return S_OK; |
| 1245 | } |
| 1246 | |
| 1247 | pVarRole->lVal = wxConvertToWindowsRole(role); |
| 1248 | pVarRole->vt = VT_I4; |
| 1249 | |
| 1250 | return S_OK; |
| 1251 | } |
| 1252 | return E_NOTIMPL; |
| 1253 | } |
| 1254 | |
| 1255 | // Retrieves the current state of the specified object. |
| 1256 | // All objects support this property. |
| 1257 | |
| 1258 | STDMETHODIMP wxIAccessible::get_accState ( VARIANT varID, VARIANT* pVarState) |
| 1259 | { |
| 1260 | wxLogTrace(wxT("access"), wxT("get_accState")); |
| 1261 | wxASSERT (m_pAccessible != NULL); |
| 1262 | if (!m_pAccessible) |
| 1263 | return E_FAIL; |
| 1264 | |
| 1265 | if (varID.vt != VT_I4 && varID.vt != VT_EMPTY) |
| 1266 | { |
| 1267 | wxLogTrace(wxT("access"), wxT("Invalid arg for get_accState")); |
| 1268 | return E_INVALIDARG; |
| 1269 | } |
| 1270 | |
| 1271 | long wxstate = 0; |
| 1272 | |
| 1273 | wxAccStatus status = m_pAccessible->GetState(varID.lVal, & wxstate); |
| 1274 | if (status == wxACC_FAIL) |
| 1275 | return E_FAIL; |
| 1276 | |
| 1277 | if (status == wxACC_NOT_IMPLEMENTED) |
| 1278 | { |
| 1279 | // Try to use child object directly. |
| 1280 | if (varID.lVal > 0) |
| 1281 | { |
| 1282 | IAccessible* childAccessible = GetChildAccessible(varID.lVal); |
| 1283 | if (childAccessible) |
| 1284 | { |
| 1285 | varID.lVal = 0; |
| 1286 | HRESULT hResult = childAccessible->get_accState(varID, pVarState); |
| 1287 | childAccessible->Release(); |
| 1288 | return hResult; |
| 1289 | } |
| 1290 | else if (m_pAccessible->GetIAccessibleStd()) |
| 1291 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->get_accState(varID, pVarState); |
| 1292 | } |
| 1293 | else if (m_pAccessible->GetIAccessibleStd()) |
| 1294 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->get_accState (varID, pVarState); |
| 1295 | } |
| 1296 | else |
| 1297 | { |
| 1298 | long state = wxConvertToWindowsState(wxstate); |
| 1299 | pVarState->lVal = state; |
| 1300 | pVarState->vt = VT_I4; |
| 1301 | return S_OK; |
| 1302 | } |
| 1303 | return E_NOTIMPL; |
| 1304 | } |
| 1305 | |
| 1306 | // Retrieves the value of the specified object. |
| 1307 | // Not all objects have a value. |
| 1308 | |
| 1309 | STDMETHODIMP wxIAccessible::get_accValue ( VARIANT varID, BSTR* pszValue) |
| 1310 | { |
| 1311 | wxLogTrace(wxT("access"), wxT("get_accValue")); |
| 1312 | wxASSERT (m_pAccessible != NULL); |
| 1313 | if (!m_pAccessible) |
| 1314 | return E_FAIL; |
| 1315 | |
| 1316 | if (varID.vt != VT_I4) |
| 1317 | { |
| 1318 | wxLogTrace(wxT("access"), wxT("Invalid arg for get_accValue")); |
| 1319 | return E_INVALIDARG; |
| 1320 | } |
| 1321 | |
| 1322 | wxString strValue; |
| 1323 | |
| 1324 | wxAccStatus status = m_pAccessible->GetValue(varID.lVal, & strValue); |
| 1325 | |
| 1326 | if (status == wxACC_FAIL) |
| 1327 | return E_FAIL; |
| 1328 | |
| 1329 | if (status == wxACC_NOT_IMPLEMENTED) |
| 1330 | { |
| 1331 | // Try to use child object directly. |
| 1332 | if (varID.lVal > 0) |
| 1333 | { |
| 1334 | IAccessible* childAccessible = GetChildAccessible(varID.lVal); |
| 1335 | if (childAccessible) |
| 1336 | { |
| 1337 | varID.lVal = 0; |
| 1338 | HRESULT hResult = childAccessible->get_accValue(varID, pszValue); |
| 1339 | childAccessible->Release(); |
| 1340 | return hResult; |
| 1341 | } |
| 1342 | else if (m_pAccessible->GetIAccessibleStd()) |
| 1343 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->get_accValue(varID, pszValue); |
| 1344 | } |
| 1345 | else if (m_pAccessible->GetIAccessibleStd()) |
| 1346 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->get_accValue (varID, pszValue); |
| 1347 | } |
| 1348 | else |
| 1349 | { |
| 1350 | wxBasicString basicString(strValue); |
| 1351 | * pszValue = basicString.Get(); |
| 1352 | return S_OK; |
| 1353 | } |
| 1354 | return E_NOTIMPL; |
| 1355 | } |
| 1356 | |
| 1357 | // Modifies the selection or moves the keyboard focus of the |
| 1358 | // specified object. All objects that select or receive the |
| 1359 | // keyboard focus must support this method. |
| 1360 | |
| 1361 | STDMETHODIMP wxIAccessible::accSelect ( long flagsSelect, VARIANT varID ) |
| 1362 | { |
| 1363 | wxLogTrace(wxT("access"), wxT("get_accSelect")); |
| 1364 | wxASSERT (m_pAccessible != NULL); |
| 1365 | if (!m_pAccessible) |
| 1366 | return E_FAIL; |
| 1367 | |
| 1368 | if (varID.vt != VT_I4 && varID.vt != VT_EMPTY) |
| 1369 | { |
| 1370 | wxLogTrace(wxT("access"), wxT("Invalid arg for accSelect")); |
| 1371 | return E_INVALIDARG; |
| 1372 | } |
| 1373 | |
| 1374 | wxAccSelectionFlags wxsel = wxConvertFromWindowsSelFlag(flagsSelect); |
| 1375 | |
| 1376 | wxAccStatus status = m_pAccessible->Select(varID.lVal, wxsel); |
| 1377 | if (status == wxACC_FAIL) |
| 1378 | return E_FAIL; |
| 1379 | |
| 1380 | if (status == wxACC_NOT_IMPLEMENTED) |
| 1381 | { |
| 1382 | // Try to use child object directly. |
| 1383 | if (varID.lVal > 0 && varID.lVal > 0) |
| 1384 | { |
| 1385 | IAccessible* childAccessible = GetChildAccessible(varID.lVal); |
| 1386 | if (childAccessible) |
| 1387 | { |
| 1388 | varID.lVal = 0; |
| 1389 | HRESULT hResult = childAccessible->accSelect(flagsSelect, varID); |
| 1390 | childAccessible->Release(); |
| 1391 | return hResult; |
| 1392 | } |
| 1393 | else if (m_pAccessible->GetIAccessibleStd()) |
| 1394 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->accSelect(flagsSelect, varID); |
| 1395 | } |
| 1396 | else if (m_pAccessible->GetIAccessibleStd()) |
| 1397 | return ((IAccessible*) m_pAccessible->GetIAccessibleStd())->accSelect(flagsSelect, varID); |
| 1398 | } |
| 1399 | else |
| 1400 | return S_OK; |
| 1401 | |
| 1402 | return E_NOTIMPL; |
| 1403 | } |
| 1404 | |
| 1405 | // Retrieves the object that has the keyboard focus. All objects |
| 1406 | // that receive the keyboard focus must support this property. |
| 1407 | |
| 1408 | STDMETHODIMP wxIAccessible::get_accFocus ( VARIANT* pVarID) |
| 1409 | { |
| 1410 | wxLogTrace(wxT("access"), wxT("get_accFocus")); |
| 1411 | wxASSERT (m_pAccessible != NULL); |
| 1412 | if (!m_pAccessible) |
| 1413 | return E_FAIL; |
| 1414 | |
| 1415 | wxAccessible* childObject = NULL; |
| 1416 | int childId = 0; |
| 1417 | VariantInit(pVarID); |
| 1418 | |
| 1419 | wxAccStatus status = m_pAccessible->GetFocus(& childId, & childObject); |
| 1420 | if (status == wxACC_FAIL) |
| 1421 | return E_FAIL; |
| 1422 | |
| 1423 | if (status == wxACC_NOT_IMPLEMENTED) |
| 1424 | { |
| 1425 | // Use standard interface instead. |
| 1426 | IAccessible* stdInterface = (IAccessible*)m_pAccessible->GetIAccessibleStd(); |
| 1427 | if (!stdInterface) |
| 1428 | return E_NOTIMPL; |
| 1429 | else |
| 1430 | return stdInterface->get_accFocus (pVarID); |
| 1431 | } |
| 1432 | if (childObject) |
| 1433 | { |
| 1434 | if (childObject == m_pAccessible) |
| 1435 | { |
| 1436 | pVarID->vt = VT_I4; |
| 1437 | pVarID->lVal = CHILDID_SELF; |
| 1438 | return S_OK; } |
| 1439 | else |
| 1440 | { |
| 1441 | wxIAccessible* childIA = childObject->GetIAccessible(); |
| 1442 | if (!childIA) |
| 1443 | return E_NOTIMPL; |
| 1444 | |
| 1445 | if (childIA->QueryInterface(IID_IDispatch, (LPVOID*) & pVarID->pdispVal) != S_OK) |
| 1446 | return E_FAIL; |
| 1447 | |
| 1448 | pVarID->vt = VT_DISPATCH; |
| 1449 | return S_OK; |
| 1450 | } |
| 1451 | } |
| 1452 | else if (childId > 0) |
| 1453 | { |
| 1454 | pVarID->vt = VT_I4; |
| 1455 | pVarID->lVal = childId; |
| 1456 | return S_OK; |
| 1457 | } |
| 1458 | else |
| 1459 | { |
| 1460 | pVarID->vt = VT_EMPTY; |
| 1461 | return S_FALSE; |
| 1462 | } |
| 1463 | |
| 1464 | #if 0 |
| 1465 | // all cases above already cause some return action so below line |
| 1466 | // is unreachable and cause unnecessary warning |
| 1467 | return E_NOTIMPL; |
| 1468 | #endif |
| 1469 | } |
| 1470 | |
| 1471 | // Retrieves the selected children of this object. All objects |
| 1472 | // selected must support this property. |
| 1473 | |
| 1474 | STDMETHODIMP wxIAccessible::get_accSelection ( VARIANT * pVarChildren) |
| 1475 | { |
| 1476 | #if wxUSE_VARIANT |
| 1477 | wxLogTrace(wxT("access"), wxT("get_accSelection")); |
| 1478 | wxASSERT (m_pAccessible != NULL); |
| 1479 | if (!m_pAccessible) |
| 1480 | return E_FAIL; |
| 1481 | |
| 1482 | VariantInit(pVarChildren); |
| 1483 | |
| 1484 | wxVariant selections; |
| 1485 | wxAccStatus status = m_pAccessible->GetSelections(& selections); |
| 1486 | if (status == wxACC_FAIL) |
| 1487 | return E_FAIL; |
| 1488 | |
| 1489 | if (status == wxACC_NOT_IMPLEMENTED) |
| 1490 | { |
| 1491 | // Use standard interface instead. |
| 1492 | IAccessible* stdInterface = (IAccessible*)m_pAccessible->GetIAccessibleStd(); |
| 1493 | if (!stdInterface) |
| 1494 | return E_NOTIMPL; |
| 1495 | else |
| 1496 | return stdInterface->get_accSelection (pVarChildren); |
| 1497 | } |
| 1498 | else |
| 1499 | { |
| 1500 | if (selections.GetType() == wxT("long")) |
| 1501 | { |
| 1502 | pVarChildren->vt = VT_I4; |
| 1503 | pVarChildren->lVal = selections.GetLong(); |
| 1504 | |
| 1505 | return S_OK; |
| 1506 | } |
| 1507 | else if (selections.GetType() == wxT("void*")) |
| 1508 | { |
| 1509 | wxAccessible* childObject = (wxAccessible*) selections.GetVoidPtr(); |
| 1510 | wxIAccessible* childIA = childObject->GetIAccessible(); |
| 1511 | if (!childIA) |
| 1512 | return E_NOTIMPL; |
| 1513 | |
| 1514 | if (childIA->QueryInterface(IID_IDispatch, (LPVOID*) & pVarChildren->pdispVal) != S_OK) |
| 1515 | return E_FAIL; |
| 1516 | |
| 1517 | pVarChildren->vt = VT_DISPATCH; |
| 1518 | |
| 1519 | return S_OK; |
| 1520 | } |
| 1521 | else if (selections.GetType() == wxT("list")) |
| 1522 | { |
| 1523 | // TODO: should we AddRef for every "void*" member?? |
| 1524 | |
| 1525 | wxIEnumVARIANT* enumVariant = new wxIEnumVARIANT(selections); |
| 1526 | enumVariant->AddRef(); |
| 1527 | |
| 1528 | pVarChildren->vt = VT_UNKNOWN; |
| 1529 | pVarChildren->punkVal = enumVariant; |
| 1530 | |
| 1531 | return S_OK; |
| 1532 | } |
| 1533 | } |
| 1534 | #else |
| 1535 | wxUnusedVar(pVarChildren); |
| 1536 | #endif // wxUSE_VARIANT |
| 1537 | |
| 1538 | return E_NOTIMPL; |
| 1539 | } |
| 1540 | |
| 1541 | // Get type info |
| 1542 | |
| 1543 | STDMETHODIMP wxIAccessible::GetTypeInfo(unsigned int WXUNUSED(typeInfo), LCID WXUNUSED(lcid), ITypeInfo** ppTypeInfo) |
| 1544 | { |
| 1545 | *ppTypeInfo = NULL; |
| 1546 | return E_NOTIMPL; |
| 1547 | } |
| 1548 | |
| 1549 | // Get type info count |
| 1550 | |
| 1551 | STDMETHODIMP wxIAccessible::GetTypeInfoCount(unsigned int* typeInfoCount) |
| 1552 | { |
| 1553 | *typeInfoCount = 0; |
| 1554 | return E_NOTIMPL; |
| 1555 | } |
| 1556 | |
| 1557 | // Get ids of names |
| 1558 | |
| 1559 | STDMETHODIMP wxIAccessible::GetIDsOfNames(REFIID WXUNUSED(riid), OLECHAR** WXUNUSED(names), unsigned int WXUNUSED(cNames), |
| 1560 | LCID WXUNUSED(lcid), DISPID* WXUNUSED(dispId)) |
| 1561 | { |
| 1562 | return E_NOTIMPL; |
| 1563 | } |
| 1564 | |
| 1565 | // Invoke |
| 1566 | |
| 1567 | STDMETHODIMP wxIAccessible::Invoke(DISPID WXUNUSED(dispIdMember), REFIID WXUNUSED(riid), LCID WXUNUSED(lcid), |
| 1568 | WORD WXUNUSED(wFlags), DISPPARAMS *WXUNUSED(pDispParams), |
| 1569 | VARIANT *WXUNUSED(pVarResult), EXCEPINFO *WXUNUSED(pExcepInfo), |
| 1570 | unsigned int *WXUNUSED(puArgErr) ) |
| 1571 | { |
| 1572 | return E_NOTIMPL; |
| 1573 | } |
| 1574 | |
| 1575 | // Gets the standard IAccessible interface for the given child or object. |
| 1576 | // Call Release if this is non-NULL. |
| 1577 | IAccessible* wxIAccessible::GetChildStdAccessible(int id) |
| 1578 | { |
| 1579 | if (id == 0) |
| 1580 | { |
| 1581 | IAccessible* obj = (IAccessible*)m_pAccessible->GetIAccessibleStd(); |
| 1582 | |
| 1583 | obj->AddRef(); |
| 1584 | return obj; |
| 1585 | } |
| 1586 | else |
| 1587 | { |
| 1588 | VARIANT var; |
| 1589 | VariantInit(& var); |
| 1590 | var.vt = VT_I4; |
| 1591 | var.lVal = id; |
| 1592 | IDispatch* pDispatch = NULL; |
| 1593 | if (S_OK == get_accChild ( var, & pDispatch)) |
| 1594 | { |
| 1595 | IAccessible* childAccessible = NULL; |
| 1596 | if (pDispatch->QueryInterface(IID_IAccessible, (LPVOID*) & childAccessible) == S_OK) |
| 1597 | { |
| 1598 | pDispatch->Release(); |
| 1599 | wxIAccessible* c = (wxIAccessible*) childAccessible; |
| 1600 | IAccessible* stdChildAccessible = (IAccessible*) c->m_pAccessible->GetIAccessibleStd(); |
| 1601 | stdChildAccessible->AddRef(); |
| 1602 | childAccessible->Release(); |
| 1603 | return stdChildAccessible; |
| 1604 | } |
| 1605 | else |
| 1606 | { |
| 1607 | pDispatch->Release(); |
| 1608 | } |
| 1609 | } |
| 1610 | } |
| 1611 | |
| 1612 | #if 0 |
| 1613 | { |
| 1614 | // Loop until we find the right id |
| 1615 | long nChildren = 0; |
| 1616 | this->get_accChildCount(& nChildren); |
| 1617 | |
| 1618 | int i; |
| 1619 | for (i = 0; i < nChildren; i++) |
| 1620 | { |
| 1621 | long obtained = 0; |
| 1622 | VARIANT var; |
| 1623 | VariantInit(& var); |
| 1624 | var.vt = VT_I4; |
| 1625 | if (S_OK == AccessibleChildren(this, i, 1, & var, &obtained)) |
| 1626 | { |
| 1627 | if (var.lVal == id) |
| 1628 | { |
| 1629 | VariantInit(& var); |
| 1630 | var.vt = VT_DISPATCH; |
| 1631 | if (S_OK == AccessibleChildren(this, i, 1, & var, &obtained)) |
| 1632 | { |
| 1633 | IAccessible* childAccessible = NULL; |
| 1634 | if (var.pdispVal->QueryInterface(IID_IAccessible, (LPVOID*) & childAccessible) == S_OK) |
| 1635 | { |
| 1636 | var.pdispVal->Release(); |
| 1637 | return childAccessible; |
| 1638 | } |
| 1639 | else |
| 1640 | { |
| 1641 | var.pdispVal->Release(); |
| 1642 | } |
| 1643 | } |
| 1644 | } |
| 1645 | break; |
| 1646 | } |
| 1647 | } |
| 1648 | } |
| 1649 | #endif |
| 1650 | return NULL; |
| 1651 | } |
| 1652 | |
| 1653 | // Gets the IAccessible interface for the given child or object. |
| 1654 | // Call Release if this is non-NULL. |
| 1655 | IAccessible* wxIAccessible::GetChildAccessible(int id) |
| 1656 | { |
| 1657 | if (id == 0) |
| 1658 | { |
| 1659 | IAccessible* obj = this; |
| 1660 | |
| 1661 | obj->AddRef(); |
| 1662 | return obj; |
| 1663 | } |
| 1664 | else |
| 1665 | { |
| 1666 | VARIANT var; |
| 1667 | VariantInit(& var); |
| 1668 | var.vt = VT_I4; |
| 1669 | var.lVal = id; |
| 1670 | IDispatch* pDispatch = NULL; |
| 1671 | if (S_OK == get_accChild ( var, & pDispatch)) |
| 1672 | { |
| 1673 | IAccessible* childAccessible = NULL; |
| 1674 | if (pDispatch->QueryInterface(IID_IAccessible, (LPVOID*) & childAccessible) == S_OK) |
| 1675 | { |
| 1676 | pDispatch->Release(); |
| 1677 | return childAccessible; |
| 1678 | } |
| 1679 | else |
| 1680 | { |
| 1681 | pDispatch->Release(); |
| 1682 | } |
| 1683 | } |
| 1684 | } |
| 1685 | return NULL; |
| 1686 | } |
| 1687 | |
| 1688 | // ---------------------------------------------------------------------------- |
| 1689 | // wxAccessible implementation |
| 1690 | // ---------------------------------------------------------------------------- |
| 1691 | |
| 1692 | // ctors |
| 1693 | |
| 1694 | // common part of all ctors |
| 1695 | void wxAccessible::Init() |
| 1696 | { |
| 1697 | m_pIAccessibleStd = NULL; |
| 1698 | m_pIAccessible = new wxIAccessible(this); |
| 1699 | m_pIAccessible->AddRef(); |
| 1700 | } |
| 1701 | |
| 1702 | wxAccessible::wxAccessible(wxWindow* win) |
| 1703 | : wxAccessibleBase(win) |
| 1704 | { |
| 1705 | Init(); |
| 1706 | } |
| 1707 | |
| 1708 | wxAccessible::~wxAccessible() |
| 1709 | { |
| 1710 | m_pIAccessible->Release(); |
| 1711 | if (m_pIAccessibleStd) |
| 1712 | ((IAccessible*)m_pIAccessibleStd)->Release(); |
| 1713 | } |
| 1714 | |
| 1715 | // Gets or creates a standard interface for this object. |
| 1716 | void* wxAccessible::GetIAccessibleStd() |
| 1717 | { |
| 1718 | if (m_pIAccessibleStd) |
| 1719 | return m_pIAccessibleStd; |
| 1720 | |
| 1721 | if (GetWindow()) |
| 1722 | { |
| 1723 | HRESULT retCode = ::CreateStdAccessibleObject((HWND) GetWindow()->GetHWND(), |
| 1724 | OBJID_CLIENT, IID_IAccessible, (void**) & m_pIAccessibleStd); |
| 1725 | if (retCode == S_OK) |
| 1726 | return m_pIAccessibleStd; |
| 1727 | else |
| 1728 | { |
| 1729 | m_pIAccessibleStd = NULL; |
| 1730 | return NULL; |
| 1731 | } |
| 1732 | } |
| 1733 | return NULL; |
| 1734 | } |
| 1735 | |
| 1736 | // Sends an event when something changes in an accessible object. |
| 1737 | void wxAccessible::NotifyEvent(int eventType, wxWindow* window, wxAccObject objectType, |
| 1738 | int objectId) |
| 1739 | { |
| 1740 | ::NotifyWinEvent((DWORD) eventType, (HWND) window->GetHWND(), |
| 1741 | (LONG) objectType, (LONG) objectId); |
| 1742 | } |
| 1743 | |
| 1744 | // Utilities |
| 1745 | |
| 1746 | // Convert to Windows role |
| 1747 | int wxConvertToWindowsRole(wxAccRole wxrole) |
| 1748 | { |
| 1749 | switch (wxrole) |
| 1750 | { |
| 1751 | case wxROLE_NONE: |
| 1752 | return 0; |
| 1753 | case wxROLE_SYSTEM_ALERT: |
| 1754 | return ROLE_SYSTEM_ALERT; |
| 1755 | case wxROLE_SYSTEM_ANIMATION: |
| 1756 | return ROLE_SYSTEM_ANIMATION; |
| 1757 | case wxROLE_SYSTEM_APPLICATION: |
| 1758 | return ROLE_SYSTEM_APPLICATION; |
| 1759 | case wxROLE_SYSTEM_BORDER: |
| 1760 | return ROLE_SYSTEM_BORDER; |
| 1761 | case wxROLE_SYSTEM_BUTTONDROPDOWN: |
| 1762 | return ROLE_SYSTEM_BUTTONDROPDOWN; |
| 1763 | case wxROLE_SYSTEM_BUTTONDROPDOWNGRID: |
| 1764 | return ROLE_SYSTEM_BUTTONDROPDOWNGRID; |
| 1765 | case wxROLE_SYSTEM_BUTTONMENU: |
| 1766 | return ROLE_SYSTEM_BUTTONMENU; |
| 1767 | case wxROLE_SYSTEM_CARET: |
| 1768 | return ROLE_SYSTEM_CARET; |
| 1769 | case wxROLE_SYSTEM_CELL: |
| 1770 | return ROLE_SYSTEM_CELL; |
| 1771 | case wxROLE_SYSTEM_CHARACTER: |
| 1772 | return ROLE_SYSTEM_CHARACTER; |
| 1773 | case wxROLE_SYSTEM_CHART: |
| 1774 | return ROLE_SYSTEM_CHART; |
| 1775 | case wxROLE_SYSTEM_CHECKBUTTON: |
| 1776 | return ROLE_SYSTEM_CHECKBUTTON; |
| 1777 | case wxROLE_SYSTEM_CLIENT: |
| 1778 | return ROLE_SYSTEM_CLIENT; |
| 1779 | case wxROLE_SYSTEM_CLOCK: |
| 1780 | return ROLE_SYSTEM_CLOCK; |
| 1781 | case wxROLE_SYSTEM_COLUMN: |
| 1782 | return ROLE_SYSTEM_COLUMN; |
| 1783 | case wxROLE_SYSTEM_COLUMNHEADER: |
| 1784 | return ROLE_SYSTEM_COLUMNHEADER; |
| 1785 | case wxROLE_SYSTEM_COMBOBOX: |
| 1786 | return ROLE_SYSTEM_COMBOBOX; |
| 1787 | case wxROLE_SYSTEM_CURSOR: |
| 1788 | return ROLE_SYSTEM_CURSOR; |
| 1789 | case wxROLE_SYSTEM_DIAGRAM: |
| 1790 | return ROLE_SYSTEM_DIAGRAM; |
| 1791 | case wxROLE_SYSTEM_DIAL: |
| 1792 | return ROLE_SYSTEM_DIAL; |
| 1793 | case wxROLE_SYSTEM_DIALOG: |
| 1794 | return ROLE_SYSTEM_DIALOG; |
| 1795 | case wxROLE_SYSTEM_DOCUMENT: |
| 1796 | return ROLE_SYSTEM_DOCUMENT; |
| 1797 | case wxROLE_SYSTEM_DROPLIST: |
| 1798 | return ROLE_SYSTEM_DROPLIST; |
| 1799 | case wxROLE_SYSTEM_EQUATION: |
| 1800 | return ROLE_SYSTEM_EQUATION; |
| 1801 | case wxROLE_SYSTEM_GRAPHIC: |
| 1802 | return ROLE_SYSTEM_GRAPHIC; |
| 1803 | case wxROLE_SYSTEM_GRIP: |
| 1804 | return ROLE_SYSTEM_GRIP; |
| 1805 | case wxROLE_SYSTEM_GROUPING: |
| 1806 | return ROLE_SYSTEM_GROUPING; |
| 1807 | case wxROLE_SYSTEM_HELPBALLOON: |
| 1808 | return ROLE_SYSTEM_HELPBALLOON; |
| 1809 | case wxROLE_SYSTEM_HOTKEYFIELD: |
| 1810 | return ROLE_SYSTEM_HOTKEYFIELD; |
| 1811 | case wxROLE_SYSTEM_INDICATOR: |
| 1812 | return ROLE_SYSTEM_INDICATOR; |
| 1813 | case wxROLE_SYSTEM_LINK: |
| 1814 | return ROLE_SYSTEM_LINK; |
| 1815 | case wxROLE_SYSTEM_LIST: |
| 1816 | return ROLE_SYSTEM_LIST; |
| 1817 | case wxROLE_SYSTEM_LISTITEM: |
| 1818 | return ROLE_SYSTEM_LISTITEM; |
| 1819 | case wxROLE_SYSTEM_MENUBAR: |
| 1820 | return ROLE_SYSTEM_MENUBAR; |
| 1821 | case wxROLE_SYSTEM_MENUITEM: |
| 1822 | return ROLE_SYSTEM_MENUITEM; |
| 1823 | case wxROLE_SYSTEM_MENUPOPUP: |
| 1824 | return ROLE_SYSTEM_MENUPOPUP; |
| 1825 | case wxROLE_SYSTEM_OUTLINE: |
| 1826 | return ROLE_SYSTEM_OUTLINE; |
| 1827 | case wxROLE_SYSTEM_OUTLINEITEM: |
| 1828 | return ROLE_SYSTEM_OUTLINEITEM; |
| 1829 | case wxROLE_SYSTEM_PAGETAB: |
| 1830 | return ROLE_SYSTEM_PAGETAB; |
| 1831 | case wxROLE_SYSTEM_PAGETABLIST: |
| 1832 | return ROLE_SYSTEM_PAGETABLIST; |
| 1833 | case wxROLE_SYSTEM_PANE: |
| 1834 | return ROLE_SYSTEM_PANE; |
| 1835 | case wxROLE_SYSTEM_PROGRESSBAR: |
| 1836 | return ROLE_SYSTEM_PROGRESSBAR; |
| 1837 | case wxROLE_SYSTEM_PROPERTYPAGE: |
| 1838 | return ROLE_SYSTEM_PROPERTYPAGE; |
| 1839 | case wxROLE_SYSTEM_PUSHBUTTON: |
| 1840 | return ROLE_SYSTEM_PUSHBUTTON; |
| 1841 | case wxROLE_SYSTEM_RADIOBUTTON: |
| 1842 | return ROLE_SYSTEM_RADIOBUTTON; |
| 1843 | case wxROLE_SYSTEM_ROW: |
| 1844 | return ROLE_SYSTEM_ROW; |
| 1845 | case wxROLE_SYSTEM_ROWHEADER: |
| 1846 | return ROLE_SYSTEM_ROWHEADER; |
| 1847 | case wxROLE_SYSTEM_SCROLLBAR: |
| 1848 | return ROLE_SYSTEM_SCROLLBAR; |
| 1849 | case wxROLE_SYSTEM_SEPARATOR: |
| 1850 | return ROLE_SYSTEM_SEPARATOR; |
| 1851 | case wxROLE_SYSTEM_SLIDER: |
| 1852 | return ROLE_SYSTEM_SLIDER; |
| 1853 | case wxROLE_SYSTEM_SOUND: |
| 1854 | return ROLE_SYSTEM_SOUND; |
| 1855 | case wxROLE_SYSTEM_SPINBUTTON: |
| 1856 | return ROLE_SYSTEM_SPINBUTTON; |
| 1857 | case wxROLE_SYSTEM_STATICTEXT: |
| 1858 | return ROLE_SYSTEM_STATICTEXT; |
| 1859 | case wxROLE_SYSTEM_STATUSBAR: |
| 1860 | return ROLE_SYSTEM_STATUSBAR; |
| 1861 | case wxROLE_SYSTEM_TABLE: |
| 1862 | return ROLE_SYSTEM_TABLE; |
| 1863 | case wxROLE_SYSTEM_TEXT: |
| 1864 | return ROLE_SYSTEM_TEXT; |
| 1865 | case wxROLE_SYSTEM_TITLEBAR: |
| 1866 | return ROLE_SYSTEM_TITLEBAR; |
| 1867 | case wxROLE_SYSTEM_TOOLBAR: |
| 1868 | return ROLE_SYSTEM_TOOLBAR; |
| 1869 | case wxROLE_SYSTEM_TOOLTIP: |
| 1870 | return ROLE_SYSTEM_TOOLTIP; |
| 1871 | case wxROLE_SYSTEM_WHITESPACE: |
| 1872 | return ROLE_SYSTEM_WHITESPACE; |
| 1873 | case wxROLE_SYSTEM_WINDOW: |
| 1874 | return ROLE_SYSTEM_WINDOW; |
| 1875 | } |
| 1876 | return 0; |
| 1877 | } |
| 1878 | |
| 1879 | // Convert to Windows state |
| 1880 | long wxConvertToWindowsState(long wxstate) |
| 1881 | { |
| 1882 | long state = 0; |
| 1883 | if (wxstate & wxACC_STATE_SYSTEM_ALERT_HIGH) |
| 1884 | state |= STATE_SYSTEM_ALERT_HIGH; |
| 1885 | |
| 1886 | if (wxstate & wxACC_STATE_SYSTEM_ALERT_MEDIUM) |
| 1887 | state |= STATE_SYSTEM_ALERT_MEDIUM; |
| 1888 | |
| 1889 | if (wxstate & wxACC_STATE_SYSTEM_ALERT_LOW) |
| 1890 | state |= STATE_SYSTEM_ALERT_LOW; |
| 1891 | |
| 1892 | if (wxstate & wxACC_STATE_SYSTEM_ANIMATED) |
| 1893 | state |= STATE_SYSTEM_ANIMATED; |
| 1894 | |
| 1895 | if (wxstate & wxACC_STATE_SYSTEM_BUSY) |
| 1896 | state |= STATE_SYSTEM_BUSY; |
| 1897 | |
| 1898 | if (wxstate & wxACC_STATE_SYSTEM_CHECKED) |
| 1899 | state |= STATE_SYSTEM_CHECKED; |
| 1900 | |
| 1901 | if (wxstate & wxACC_STATE_SYSTEM_COLLAPSED) |
| 1902 | state |= STATE_SYSTEM_COLLAPSED; |
| 1903 | |
| 1904 | if (wxstate & wxACC_STATE_SYSTEM_DEFAULT) |
| 1905 | state |= STATE_SYSTEM_DEFAULT; |
| 1906 | |
| 1907 | if (wxstate & wxACC_STATE_SYSTEM_EXPANDED) |
| 1908 | state |= STATE_SYSTEM_EXPANDED; |
| 1909 | |
| 1910 | if (wxstate & wxACC_STATE_SYSTEM_EXTSELECTABLE) |
| 1911 | state |= STATE_SYSTEM_EXTSELECTABLE; |
| 1912 | |
| 1913 | if (wxstate & wxACC_STATE_SYSTEM_FLOATING) |
| 1914 | state |= STATE_SYSTEM_FLOATING; |
| 1915 | |
| 1916 | if (wxstate & wxACC_STATE_SYSTEM_FOCUSABLE) |
| 1917 | state |= STATE_SYSTEM_FOCUSABLE; |
| 1918 | |
| 1919 | if (wxstate & wxACC_STATE_SYSTEM_FOCUSED) |
| 1920 | state |= STATE_SYSTEM_FOCUSED; |
| 1921 | |
| 1922 | if (wxstate & wxACC_STATE_SYSTEM_HOTTRACKED) |
| 1923 | state |= STATE_SYSTEM_HOTTRACKED; |
| 1924 | |
| 1925 | if (wxstate & wxACC_STATE_SYSTEM_INVISIBLE) |
| 1926 | state |= STATE_SYSTEM_INVISIBLE; |
| 1927 | |
| 1928 | if (wxstate & wxACC_STATE_SYSTEM_INVISIBLE) |
| 1929 | state |= STATE_SYSTEM_INVISIBLE; |
| 1930 | |
| 1931 | if (wxstate & wxACC_STATE_SYSTEM_MIXED) |
| 1932 | state |= STATE_SYSTEM_MIXED; |
| 1933 | |
| 1934 | if (wxstate & wxACC_STATE_SYSTEM_MULTISELECTABLE) |
| 1935 | state |= STATE_SYSTEM_MULTISELECTABLE; |
| 1936 | |
| 1937 | if (wxstate & wxACC_STATE_SYSTEM_OFFSCREEN) |
| 1938 | state |= STATE_SYSTEM_OFFSCREEN; |
| 1939 | |
| 1940 | if (wxstate & wxACC_STATE_SYSTEM_PRESSED) |
| 1941 | state |= STATE_SYSTEM_PRESSED; |
| 1942 | |
| 1943 | // if (wxstate & wxACC_STATE_SYSTEM_PROTECTED) |
| 1944 | // state |= STATE_SYSTEM_PROTECTED; |
| 1945 | |
| 1946 | if (wxstate & wxACC_STATE_SYSTEM_READONLY) |
| 1947 | state |= STATE_SYSTEM_READONLY; |
| 1948 | |
| 1949 | if (wxstate & wxACC_STATE_SYSTEM_SELECTABLE) |
| 1950 | state |= STATE_SYSTEM_SELECTABLE; |
| 1951 | |
| 1952 | if (wxstate & wxACC_STATE_SYSTEM_SELECTED) |
| 1953 | state |= STATE_SYSTEM_SELECTED; |
| 1954 | |
| 1955 | if (wxstate & wxACC_STATE_SYSTEM_SELFVOICING) |
| 1956 | state |= STATE_SYSTEM_SELFVOICING; |
| 1957 | |
| 1958 | if (wxstate & wxACC_STATE_SYSTEM_UNAVAILABLE) |
| 1959 | state |= STATE_SYSTEM_UNAVAILABLE; |
| 1960 | |
| 1961 | return state; |
| 1962 | } |
| 1963 | |
| 1964 | // Convert to Windows selection flag |
| 1965 | int wxConvertToWindowsSelFlag(wxAccSelectionFlags wxsel) |
| 1966 | { |
| 1967 | int sel = 0; |
| 1968 | |
| 1969 | if (wxsel & wxACC_SEL_TAKEFOCUS) |
| 1970 | sel |= SELFLAG_TAKEFOCUS; |
| 1971 | if (wxsel & wxACC_SEL_TAKESELECTION) |
| 1972 | sel |= SELFLAG_TAKESELECTION; |
| 1973 | if (wxsel & wxACC_SEL_EXTENDSELECTION) |
| 1974 | sel |= SELFLAG_EXTENDSELECTION; |
| 1975 | if (wxsel & wxACC_SEL_ADDSELECTION) |
| 1976 | sel |= SELFLAG_ADDSELECTION; |
| 1977 | if (wxsel & wxACC_SEL_REMOVESELECTION) |
| 1978 | sel |= SELFLAG_REMOVESELECTION; |
| 1979 | return sel; |
| 1980 | } |
| 1981 | |
| 1982 | // Convert from Windows selection flag |
| 1983 | wxAccSelectionFlags wxConvertFromWindowsSelFlag(int sel) |
| 1984 | { |
| 1985 | int wxsel = 0; |
| 1986 | |
| 1987 | if (sel & SELFLAG_TAKEFOCUS) |
| 1988 | wxsel |= wxACC_SEL_TAKEFOCUS; |
| 1989 | if (sel & SELFLAG_TAKESELECTION) |
| 1990 | wxsel |= wxACC_SEL_TAKESELECTION; |
| 1991 | if (sel & SELFLAG_EXTENDSELECTION) |
| 1992 | wxsel |= wxACC_SEL_EXTENDSELECTION; |
| 1993 | if (sel & SELFLAG_ADDSELECTION) |
| 1994 | wxsel |= wxACC_SEL_ADDSELECTION; |
| 1995 | if (sel & SELFLAG_REMOVESELECTION) |
| 1996 | wxsel |= wxACC_SEL_REMOVESELECTION; |
| 1997 | return (wxAccSelectionFlags) wxsel; |
| 1998 | } |
| 1999 | |
| 2000 | |
| 2001 | #endif // wxUSE_OLE && wxUSE_ACCESSIBILITY |