dlls/uxtheme/system.c

   1 /*
   2  * Win32 5.1 Theme system
   3  *
   4  * Copyright (C) 2003 Kevin Koltzau
   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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22
  23 #include <stdarg.h>
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "winuser.h"
  28 #include "wingdi.h"
  29 #include "winreg.h"
  30 #include "shlwapi.h"
  31 #include "uxtheme.h"
  32 #include "tmschema.h"
  33
  34 #include "uxthemedll.h"
  35 #include "msstyles.h"
  36
  37 #include "wine/debug.h"
  38
  39 WINE_DEFAULT_DEBUG_CHANNEL(uxtheme);
  40
  41 /***********************************************************************
  42  * Defines and global variables
  43  */
  44
  45 static const WCHAR szThemeManager[] = {
  46     'S','o','f','t','w','a','r','e','\\',
  47     'M','i','c','r','o','s','o','f','t','\\',
  48     'W','i','n','d','o','w','s','\\',
  49     'C','u','r','r','e','n','t','V','e','r','s','i','o','n','\\',
  50     'T','h','e','m','e','M','a','n','a','g','e','r','\0'
  51 };
  52 static const WCHAR szThemeActive[] = {'T','h','e','m','e','A','c','t','i','v','e','\0'};
  53 static const WCHAR szSizeName[] = {'S','i','z','e','N','a','m','e','\0'};
  54 static const WCHAR szColorName[] = {'C','o','l','o','r','N','a','m','e','\0'};
  55 static const WCHAR szDllName[] = {'D','l','l','N','a','m','e','\0'};
  56
  57 static const WCHAR szIniDocumentation[] = {'d','o','c','u','m','e','n','t','a','t','i','o','n','\0'};
  58
  59 HINSTANCE hDllInst;
  60
  61 DWORD dwThemeAppProperties = STAP_ALLOW_NONCLIENT | STAP_ALLOW_CONTROLS;
  62 ATOM atWindowTheme;
  63 ATOM atSubAppName;
  64 ATOM atSubIdList;
  65
  66 BOOL bThemeActive = FALSE;
  67 WCHAR szCurrentTheme[MAX_PATH];
  68 WCHAR szCurrentColor[64];
  69 WCHAR szCurrentSize[64];
  70
  71 /***********************************************************************/
  72
  73 /***********************************************************************
  74  *      UXTHEME_LoadTheme
  75  *
  76  * Set the current active theme from the registry
  77  */
  78 void UXTHEME_LoadTheme()
  79 {
  80     HKEY hKey;
  81     LONG buffsize;
  82     HRESULT hr;
  83     WCHAR tmp[10];
  84     PTHEME_FILE pt;
  85
  86     /* Get current theme configuration */
  87     if(!RegOpenKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
  88         TRACE("Loading theme config\n");
  89         buffsize = sizeof(tmp)/sizeof(tmp[0]);
  90         if(!RegQueryValueExW(hKey, szThemeActive, NULL, NULL, (LPBYTE)tmp, &buffsize)) {
  91             bThemeActive = (tmp[0] != '0');
  92         }
  93         else {
  94             bThemeActive = FALSE;
  95             TRACE("Failed to get ThemeActive: %ld\n", GetLastError());
  96         }
  97         buffsize = sizeof(szCurrentColor)/sizeof(szCurrentColor[0]);
  98         if(RegQueryValueExW(hKey, szColorName, NULL, NULL, (LPBYTE)szCurrentColor, &buffsize))
  99             szCurrentColor[0] = '\0';
 100         buffsize = sizeof(szCurrentSize)/sizeof(szCurrentSize[0]);
 101         if(RegQueryValueExW(hKey, szSizeName, NULL, NULL, (LPBYTE)szCurrentSize, &buffsize))
 102             szCurrentSize[0] = '\0';
 103         if(SHRegGetPathW(hKey, NULL, szDllName, szCurrentTheme, 0))
 104             szCurrentTheme[0] = '\0';
 105         RegCloseKey(hKey);
 106     }
 107     else
 108         TRACE("Failed to open theme registry key\n");
 109
 110     if(bThemeActive) {
 111         /* Make sure the theme requested is actually valid */
 112         hr = MSSTYLES_OpenThemeFile(szCurrentTheme,
 113                                     szCurrentColor[0]?szCurrentColor:NULL,
 114                                     szCurrentSize[0]?szCurrentSize:NULL,
 115                                     &pt);
 116         if(FAILED(hr)) {
 117             bThemeActive = FALSE;
 118             szCurrentTheme[0] = '\0';
 119             szCurrentColor[0] = '\0';
 120             szCurrentSize[0] = '\0';
 121         }
 122         else {
 123             /* Make sure the global color & size match the theme */
 124             lstrcpynW(szCurrentColor, pt->pszSelectedColor, sizeof(szCurrentColor)/sizeof(szCurrentColor[0]));
 125             lstrcpynW(szCurrentSize, pt->pszSelectedSize, sizeof(szCurrentSize)/sizeof(szCurrentSize[0]));
 126
 127             MSSTYLES_SetActiveTheme(pt);
 128             TRACE("Theme active: %s %s %s\n", debugstr_w(szCurrentTheme),
 129                 debugstr_w(szCurrentColor), debugstr_w(szCurrentSize));
 130             MSSTYLES_CloseThemeFile(pt);
 131         }
 132     }
 133     if(!bThemeActive) {
 134         MSSTYLES_SetActiveTheme(NULL);
 135         TRACE("Themeing not active\n");
 136     }
 137 }
 138
 139 /***********************************************************************
 140  *      UXTHEME_SetActiveTheme
 141  *
 142  * Change the current active theme
 143  */
 144 HRESULT UXTHEME_SetActiveTheme(PTHEME_FILE tf)
 145 {
 146     HKEY hKey;
 147     WCHAR tmp[2];
 148     HRESULT hr;
 149
 150     hr = MSSTYLES_SetActiveTheme(tf);
 151     if(FAILED(hr))
 152         return hr;
 153     if(tf) {
 154         bThemeActive = TRUE;
 155         lstrcpynW(szCurrentTheme, tf->szThemeFile, sizeof(szCurrentTheme)/sizeof(szCurrentTheme[0]));
 156         lstrcpynW(szCurrentColor, tf->pszSelectedColor, sizeof(szCurrentColor)/sizeof(szCurrentColor[0]));
 157         lstrcpynW(szCurrentSize, tf->pszSelectedSize, sizeof(szCurrentSize)/sizeof(szCurrentSize[0]));
 158     }
 159     else {
 160         bThemeActive = FALSE;
 161         szCurrentTheme[0] = '\0';
 162         szCurrentColor[0] = '\0';
 163         szCurrentSize[0] = '\0';
 164     }
 165
 166     TRACE("Writing theme config to registry\n");
 167     if(!RegCreateKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
 168         tmp[0] = bThemeActive?'1':'0';
 169         tmp[1] = '\0';
 170         RegSetValueExW(hKey, szThemeActive, 0, REG_SZ, (const BYTE*)tmp, sizeof(WCHAR)*2);
 171         if(bThemeActive) {
 172             RegSetValueExW(hKey, szColorName, 0, REG_SZ, (const BYTE*)szCurrentColor, lstrlenW(szCurrentColor)+1);
 173             RegSetValueExW(hKey, szSizeName, 0, REG_SZ, (const BYTE*)szCurrentSize, lstrlenW(szCurrentSize)+1);
 174             RegSetValueExW(hKey, szDllName, 0, REG_SZ, (const BYTE*)szCurrentTheme, lstrlenW(szCurrentTheme)+1);
 175         }
 176         else {
 177             RegDeleteValueW(hKey, szColorName);
 178             RegDeleteValueW(hKey, szSizeName);
 179             RegDeleteValueW(hKey, szDllName);
 180
 181         }
 182         RegCloseKey(hKey);
 183     }
 184     else
 185         TRACE("Failed to open theme registry key\n");
 186     return hr;
 187 }
 188
 189 /***********************************************************************
 190  *      UXTHEME_InitSystem
 191  */
 192 void UXTHEME_InitSystem(HINSTANCE hInst)
 193 {
 194     static const WCHAR szWindowTheme[] = {
 195         'u','x','_','t','h','e','m','e','\0'
 196     };
 197     static const WCHAR szSubAppName[] = {
 198         'u','x','_','s','u','b','a','p','p','\0'
 199     };
 200     static const WCHAR szSubIdList[] = {
 201         'u','x','_','s','u','b','i','d','l','s','t','\0'
 202     };
 203
 204     hDllInst = hInst;
 205
 206     atWindowTheme = GlobalAddAtomW(szWindowTheme);
 207     atSubAppName  = GlobalAddAtomW(szSubAppName);
 208     atSubIdList   = GlobalAddAtomW(szSubIdList);
 209
 210     UXTHEME_LoadTheme();
 211 }
 212
 213 /***********************************************************************
 214  *      IsAppThemed                                         (UXTHEME.@)
 215  */
 216 BOOL WINAPI IsAppThemed(void)
 217 {
 218     return IsThemeActive();
 219 }
 220
 221 /***********************************************************************
 222  *      IsThemeActive                                       (UXTHEME.@)
 223  */
 224 BOOL WINAPI IsThemeActive(void)
 225 {
 226     TRACE("\n");
 227     return bThemeActive;
 228 }
 229
 230 /***********************************************************************
 231  *      EnableTheming                                       (UXTHEME.@)
 232  *
 233  * NOTES
 234  * This is a global and persistent change
 235  */
 236 HRESULT WINAPI EnableTheming(BOOL fEnable)
 237 {
 238     HKEY hKey;
 239     WCHAR szEnabled[] = {'0','\0'};
 240
 241     TRACE("(%d)\n", fEnable);
 242
 243     if(fEnable != bThemeActive) {
 244         bThemeActive = fEnable;
 245         if(bThemeActive) szEnabled[0] = '1';
 246         if(!RegOpenKeyW(HKEY_CURRENT_USER, szThemeManager, &hKey)) {
 247             RegSetValueExW(hKey, szThemeActive, 0, REG_SZ, (LPBYTE)szEnabled, sizeof(WCHAR));
 248             RegCloseKey(hKey);
 249         }
 250         PostMessageW(HWND_BROADCAST, WM_THEMECHANGED, 0, 0);
 251     }
 252     return S_OK;
 253 }
 254
 255 /***********************************************************************
 256  *      UXTHEME_SetWindowProperty
 257  *
 258  * I'm using atoms as there may be large numbers of duplicated strings
 259  * and they do the work of keeping memory down as a cause of that quite nicely
 260  */
 261 HRESULT UXTHEME_SetWindowProperty(HWND hwnd, ATOM aProp, LPCWSTR pszValue)
 262 {
 263     ATOM oldValue = (ATOM)(size_t)RemovePropW(hwnd, MAKEINTATOMW(aProp));
 264     if(oldValue)
 265         DeleteAtom(oldValue);
 266     if(pszValue) {
 267         ATOM atValue = AddAtomW(pszValue);
 268         if(!atValue
 269            || !SetPropW(hwnd, MAKEINTATOMW(aProp), (LPWSTR)MAKEINTATOMW(atValue))) {
 270             HRESULT hr = HRESULT_FROM_WIN32(GetLastError());
 271             if(atValue) DeleteAtom(atValue);
 272             return hr;
 273         }
 274     }
 275     return S_OK;
 276 }
 277
 278 LPWSTR UXTHEME_GetWindowProperty(HWND hwnd, ATOM aProp, LPWSTR pszBuffer, int dwLen)
 279 {
 280     ATOM atValue = (ATOM)(size_t)GetPropW(hwnd, MAKEINTATOMW(aProp));
 281     if(atValue) {
 282         if(GetAtomNameW(atValue, pszBuffer, dwLen))
 283             return pszBuffer;
 284         TRACE("property defined, but unable to get value\n");
 285     }
 286     return NULL;
 287 }
 288
 289 /***********************************************************************
 290  *      OpenThemeData                                       (UXTHEME.@)
 291  */
 292 HTHEME WINAPI OpenThemeData(HWND hwnd, LPCWSTR pszClassList)
 293 {
 294     WCHAR szAppBuff[256];
 295     WCHAR szClassBuff[256];
 296     LPCWSTR pszAppName;
 297     LPCWSTR pszUseClassList;
 298     HTHEME hTheme;
 299     TRACE("(%p,%s)\n", hwnd, debugstr_w(pszClassList));
 300     if(!bThemeActive)
 301         return NULL;
 302
 303     pszAppName = UXTHEME_GetWindowProperty(hwnd, atSubAppName, szAppBuff, sizeof(szAppBuff)/sizeof(szAppBuff[0]));
 304     /* If SetWindowTheme was used on the window, that overrides the class list passed to this function */
 305     pszUseClassList = UXTHEME_GetWindowProperty(hwnd, atSubIdList, szClassBuff, sizeof(szClassBuff)/sizeof(szClassBuff[0]));
 306     if(!pszUseClassList)
 307         pszUseClassList = pszClassList;
 308
 309     hTheme = MSSTYLES_OpenThemeClass(pszAppName, pszUseClassList);
 310     if(IsWindow(hwnd))
 311         SetPropW(hwnd, MAKEINTATOMW(atWindowTheme), hTheme);
 312     return hTheme;
 313 }
 314
 315 /***********************************************************************
 316  *      GetWindowTheme                                      (UXTHEME.@)
 317  *
 318  * Retrieve the last theme opened for a window
 319  */
 320 HTHEME WINAPI GetWindowTheme(HWND hwnd)
 321 {
 322     TRACE("(%p)\n", hwnd);
 323     return GetPropW(hwnd, MAKEINTATOMW(atWindowTheme));
 324 }
 325
 326 /***********************************************************************
 327  *      SetWindowTheme                                      (UXTHEME.@)
 328  *
 329  * Persistent through the life of the window, even after themes change
 330  */
 331 HRESULT WINAPI SetWindowTheme(HWND hwnd, LPCWSTR pszSubAppName,
 332                               LPCWSTR pszSubIdList)
 333 {
 334     HRESULT hr;
 335     TRACE("(%p,%s,%s)\n", hwnd, debugstr_w(pszSubAppName),
 336           debugstr_w(pszSubIdList));
 337     hr = UXTHEME_SetWindowProperty(hwnd, atSubAppName, pszSubAppName);
 338     if(SUCCEEDED(hr))
 339         hr = UXTHEME_SetWindowProperty(hwnd, atSubIdList, pszSubIdList);
 340     if(SUCCEEDED(hr))
 341         PostMessageW(hwnd, WM_THEMECHANGED, 0, 0);
 342     return hr;
 343 }
 344
 345 /***********************************************************************
 346  *      GetCurrentThemeName                                 (UXTHEME.@)
 347  */
 348 HRESULT WINAPI GetCurrentThemeName(LPWSTR pszThemeFileName, int dwMaxNameChars,
 349                                    LPWSTR pszColorBuff, int cchMaxColorChars,
 350                                    LPWSTR pszSizeBuff, int cchMaxSizeChars)
 351 {
 352     if(!bThemeActive)
 353         return E_PROP_ID_UNSUPPORTED;
 354     if(pszThemeFileName) lstrcpynW(pszThemeFileName, szCurrentTheme, dwMaxNameChars);
 355     if(pszColorBuff) lstrcpynW(pszColorBuff, szCurrentColor, cchMaxColorChars);
 356     if(pszSizeBuff) lstrcpynW(pszSizeBuff, szCurrentSize, cchMaxSizeChars);
 357     return S_OK;
 358 }
 359
 360 /***********************************************************************
 361  *      GetThemeAppProperties                               (UXTHEME.@)
 362  */
 363 DWORD WINAPI GetThemeAppProperties(void)
 364 {
 365     return dwThemeAppProperties;
 366 }
 367
 368 /***********************************************************************
 369  *      SetThemeAppProperties                               (UXTHEME.@)
 370  */
 371 void WINAPI SetThemeAppProperties(DWORD dwFlags)
 372 {
 373     TRACE("(0x%08lx)\n", dwFlags);
 374     dwThemeAppProperties = dwFlags;
 375 }
 376
 377 /***********************************************************************
 378  *      CloseThemeData                                      (UXTHEME.@)
 379  */
 380 HRESULT WINAPI CloseThemeData(HTHEME hTheme)
 381 {
 382     TRACE("(%p)\n", hTheme);
 383     if(!hTheme)
 384         return E_HANDLE;
 385     return MSSTYLES_CloseThemeClass(hTheme);
 386 }
 387
 388 /***********************************************************************
 389  *      HitTestThemeBackground                              (UXTHEME.@)
 390  */
 391 HRESULT WINAPI HitTestThemeBackground(HTHEME hTheme, HDC hdc, int iPartId,
 392                                      int iStateId, DWORD dwOptions,
 393                                      const RECT *pRect, HRGN hrgn,
 394                                      POINT ptTest, WORD *pwHitTestCode)
 395 {
 396     FIXME("%d %d 0x%08lx: stub\n", iPartId, iStateId, dwOptions);
 397     if(!hTheme)
 398         return E_HANDLE;
 399     return ERROR_CALL_NOT_IMPLEMENTED;
 400 }
 401
 402 /***********************************************************************
 403  *      IsThemePartDefined                                  (UXTHEME.@)
 404  */
 405 BOOL WINAPI IsThemePartDefined(HTHEME hTheme, int iPartId, int iStateId)
 406 {
 407     TRACE("(%p,%d,%d)\n", hTheme, iPartId, iStateId);
 408     if(!hTheme) {
 409         SetLastError(E_HANDLE);
 410         return FALSE;
 411     }
 412     if(MSSTYLES_FindPartState(hTheme, iPartId, iStateId, NULL))
 413         return TRUE;
 414     return FALSE;
 415 }
 416
 417 /***********************************************************************
 418  *      GetThemeDocumentationProperty                       (UXTHEME.@)
 419  *
 420  * Try and retrieve the documentation property from string resources
 421  * if that fails, get it from the [documentation] section of themes.ini
 422  */
 423 HRESULT WINAPI GetThemeDocumentationProperty(LPCWSTR pszThemeName,
 424                                              LPCWSTR pszPropertyName,
 425                                              LPWSTR pszValueBuff,
 426                                              int cchMaxValChars)
 427 {
 428     const WORD wDocToRes[] = {
 429         TMT_DISPLAYNAME,5000,
 430         TMT_TOOLTIP,5001,
 431         TMT_COMPANY,5002,
 432         TMT_AUTHOR,5003,
 433         TMT_COPYRIGHT,5004,
 434         TMT_URL,5005,
 435         TMT_VERSION,5006,
 436         TMT_DESCRIPTION,5007
 437     };
 438
 439     PTHEME_FILE pt;
 440     HRESULT hr;
 441     unsigned int i;
 442     int iDocId;
 443     TRACE("(%s,%s,%p,%d)\n", debugstr_w(pszThemeName), debugstr_w(pszPropertyName),
 444           pszValueBuff, cchMaxValChars);
 445
 446     hr = MSSTYLES_OpenThemeFile(pszThemeName, NULL, NULL, &pt);
 447     if(FAILED(hr)) return hr;
 448
 449     /* Try to load from string resources */
 450     hr = E_PROP_ID_UNSUPPORTED;
 451     if(MSSTYLES_LookupProperty(pszPropertyName, NULL, &iDocId)) {
 452         for(i=0; i<sizeof(wDocToRes)/sizeof(wDocToRes[0]); i+=2) {
 453             if(wDocToRes[i] == iDocId) {
 454                 if(LoadStringW(pt->hTheme, wDocToRes[i+1], pszValueBuff, cchMaxValChars)) {
 455                     hr = S_OK;
 456                     break;
 457                 }
 458             }
 459         }
 460     }
 461     /* If loading from string resource failed, try getting it from the theme.ini */
 462     if(FAILED(hr)) {
 463         PUXINI_FILE uf = MSSTYLES_GetThemeIni(pt);
 464         if(UXINI_FindSection(uf, szIniDocumentation)) {
 465             LPCWSTR lpValue;
 466             DWORD dwLen;
 467             if(UXINI_FindValue(uf, pszPropertyName, &lpValue, &dwLen)) {
 468                 lstrcpynW(pszValueBuff, lpValue, min(dwLen+1,cchMaxValChars));
 469                 hr = S_OK;
 470             }
 471         }
 472         UXINI_CloseINI(uf);
 473     }
 474
 475     MSSTYLES_CloseThemeFile(pt);
 476     return hr;
 477 }
 478
 479 /**********************************************************************
 480  *      Undocumented functions
 481  */
 482
 483 /**********************************************************************
 484  *      QueryThemeServices                                 (UXTHEME.1)
 485  *
 486  * RETURNS
 487  *     some kind of status flag
 488  */
 489 DWORD WINAPI QueryThemeServices()
 490 {
 491     FIXME("stub\n");
 492     return 3; /* This is what is returned under XP in most cases */
 493 }
 494
 495
 496 /**********************************************************************
 497  *      OpenThemeFile                                      (UXTHEME.2)
 498  *
 499  * Opens a theme file, which can be used to change the current theme, etc
 500  *
 501  * PARAMS
 502  *     pszThemeFileName    Path to a msstyles theme file
 503  *     pszColorName        Color defined in the theme, eg. NormalColor
 504  *     pszSizeName         Size defined in the theme, eg. NormalSize
 505  *     hThemeFile          Handle to theme file
 506  */
 507 HRESULT WINAPI OpenThemeFile(LPCWSTR pszThemeFileName, LPCWSTR pszColorName,
 508                              LPCWSTR pszSizeName, HTHEMEFILE *hThemeFile,
 509                              DWORD unknown)
 510 {
 511     TRACE("(%s,%s,%s,%p,%ld)\n", debugstr_w(pszThemeFileName),
 512           debugstr_w(pszColorName), debugstr_w(pszSizeName),
 513           hThemeFile, unknown);
 514     return MSSTYLES_OpenThemeFile(pszThemeFileName, pszColorName, pszSizeName, (PTHEME_FILE*)hThemeFile);
 515 }
 516
 517 /**********************************************************************
 518  *      CloseThemeFile                                     (UXTHEME.3)
 519  *
 520  * Releases theme file handle returned by OpenThemeFile
 521  *
 522  * PARAMS
 523  *     hThemeFile           Handle to theme file
 524  */
 525 HRESULT WINAPI CloseThemeFile(HTHEMEFILE hThemeFile)
 526 {
 527     TRACE("(%p)\n", hThemeFile);
 528     MSSTYLES_CloseThemeFile(hThemeFile);
 529     return S_OK;
 530 }
 531
 532 /**********************************************************************
 533  *      ApplyTheme                                         (UXTHEME.4)
 534  *
 535  * Set a theme file to be the currently active theme
 536  *
 537  * PARAMS
 538  *     hThemeFile           Handle to theme file
 539  *     unknown              See notes
 540  *     hWnd                 Window requesting the theme change
 541  *
 542  * NOTES
 543  * I'm not sure what the second parameter is (the datatype is likely wrong), other then this:
 544  * Under XP if I pass
 545  * char b[] = "";
 546  *   the theme is applied with the screen redrawing really badly (flickers)
 547  * char b[] = "\0"; where \0 can be one or more of any character, makes no difference
 548  *   the theme is applied smoothly (screen does not flicker)
 549  * char *b = "\0" or NULL; where \0 can be zero or more of any character, makes no difference
 550  *   the function fails returning invalid parameter...very strange
 551  */
 552 HRESULT WINAPI ApplyTheme(HTHEMEFILE hThemeFile, char *unknown, HWND hWnd)
 553 {
 554     HRESULT hr;
 555     TRACE("(%p,%s,%p)\n", hThemeFile, unknown, hWnd);
 556     hr = UXTHEME_SetActiveTheme(hThemeFile);
 557     PostMessageW(HWND_BROADCAST, WM_THEMECHANGED, 0, 0);
 558     return hr;
 559 }
 560
 561 /**********************************************************************
 562  *      GetThemeDefaults                                   (UXTHEME.7)
 563  *
 564  * Get the default color & size for a theme
 565  *
 566  * PARAMS
 567  *     pszThemeFileName    Path to a msstyles theme file
 568  *     pszColorName        Buffer to receive the default color name
 569  *     dwColorNameLen      Length, in characters, of color name buffer
 570  *     pszSizeName         Buffer to receive the default size name
 571  *     dwSizeNameLen       Length, in characters, of size name buffer
 572  */
 573 HRESULT WINAPI GetThemeDefaults(LPCWSTR pszThemeFileName, LPWSTR pszColorName,
 574                                 DWORD dwColorNameLen, LPWSTR pszSizeName,
 575                                 DWORD dwSizeNameLen)
 576 {
 577     PTHEME_FILE pt;
 578     HRESULT hr;
 579     TRACE("(%s,%p,%ld,%p,%ld)\n", debugstr_w(pszThemeFileName),
 580           pszColorName, dwColorNameLen,
 581           pszSizeName, dwSizeNameLen);
 582
 583     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, NULL, &pt);
 584     if(FAILED(hr)) return hr;
 585
 586     lstrcpynW(pszColorName, pt->pszSelectedColor, dwColorNameLen);
 587     lstrcpynW(pszSizeName, pt->pszSelectedSize, dwSizeNameLen);
 588
 589     MSSTYLES_CloseThemeFile(pt);
 590     return S_OK;
 591 }
 592
 593 /**********************************************************************
 594  *      EnumThemes                                         (UXTHEME.8)
 595  *
 596  * Enumerate available themes, calls specified EnumThemeProc for each
 597  * theme found. Passes lpData through to callback function.
 598  *
 599  * PARAMS
 600  *     pszThemePath        Path containing themes
 601  *     callback            Called for each theme found in path
 602  *     lpData              Passed through to callback
 603  */
 604 HRESULT WINAPI EnumThemes(LPCWSTR pszThemePath, EnumThemeProc callback,
 605                           LPVOID lpData)
 606 {
 607     WCHAR szDir[MAX_PATH];
 608     WCHAR szPath[MAX_PATH];
 609     static const WCHAR szStar[] = {'*','.','*','\0'};
 610     static const WCHAR szFormat[] = {'%','s','%','s','\\','%','s','.','m','s','s','t','y','l','e','s','\0'};
 611     static const WCHAR szDisplayName[] = {'d','i','s','p','l','a','y','n','a','m','e','\0'};
 612     static const WCHAR szTooltip[] = {'t','o','o','l','t','i','p','\0'};
 613     WCHAR szName[60];
 614     WCHAR szTip[60];
 615     HANDLE hFind;
 616     WIN32_FIND_DATAW wfd;
 617     HRESULT hr;
 618
 619     TRACE("(%s,%p,%p)\n", debugstr_w(pszThemePath), callback, lpData);
 620
 621     if(!pszThemePath || !callback)
 622         return E_POINTER;
 623
 624     lstrcpyW(szDir, pszThemePath);
 625     PathAddBackslashW(szDir);
 626
 627     lstrcpyW(szPath, szDir);
 628     lstrcatW(szPath, szStar);
 629     TRACE("searching %s\n", debugstr_w(szPath));
 630
 631     hFind = FindFirstFileW(szPath, &wfd);
 632     if(hFind != INVALID_HANDLE_VALUE) {
 633         do {
 634             if(wfd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY
 635                && !(wfd.cFileName[0] == '.' && ((wfd.cFileName[1] == '.' && wfd.cFileName[2] == 0) || wfd.cFileName[1] == 0))) {
 636                 wsprintfW(szPath, szFormat, szDir, wfd.cFileName, wfd.cFileName);
 637
 638                 hr = GetThemeDocumentationProperty(szPath, szDisplayName, szName, sizeof(szName)/sizeof(szName[0]));
 639                 if(SUCCEEDED(hr))
 640                     hr = GetThemeDocumentationProperty(szPath, szTooltip, szTip, sizeof(szTip)/sizeof(szTip[0]));
 641                 if(SUCCEEDED(hr)) {
 642                     TRACE("callback(%s,%s,%s,%p)\n", debugstr_w(szPath), debugstr_w(szName), debugstr_w(szTip), lpData);
 643                     if(!callback(NULL, szPath, szName, szTip, NULL, lpData)) {
 644                         TRACE("callback ended enum\n");
 645                         break;
 646                     }
 647                 }
 648             }
 649         } while(FindNextFileW(hFind, &wfd));
 650         FindClose(hFind);
 651     }
 652     return S_OK;
 653 }
 654
 655
 656 /**********************************************************************
 657  *      EnumThemeColors                                    (UXTHEME.9)
 658  *
 659  * Enumerate theme colors available with a particular size
 660  *
 661  * PARAMS
 662  *     pszThemeFileName    Path to a msstyles theme file
 663  *     pszSizeName         Theme size to enumerate available colors
 664  *                         If NULL the default theme size is used
 665  *     dwColorNum          Color index to retrieve, increment from 0
 666  *     pszColorName        Output color name
 667  *
 668  * RETURNS
 669  *     S_OK on success
 670  *     E_PROP_ID_UNSUPPORTED when dwColorName does not refer to a color
 671  *          or when pszSizeName does not refer to a valid size
 672  *
 673  * NOTES
 674  * XP fails with E_POINTER when pszColorName points to a buffer smaller then 605
 675  * characters
 676  *
 677  * Not very efficient that I'm opening & validating the theme every call, but
 678  * this is undocumented and almost never called..
 679  * (and this is how windows works too)
 680  */
 681 HRESULT WINAPI EnumThemeColors(LPWSTR pszThemeFileName, LPWSTR pszSizeName,
 682                                DWORD dwColorNum, LPWSTR pszColorName)
 683 {
 684     PTHEME_FILE pt;
 685     HRESULT hr;
 686     LPWSTR tmp;
 687     TRACE("(%s,%s,%ld)\n", debugstr_w(pszThemeFileName),
 688           debugstr_w(pszSizeName), dwColorNum);
 689
 690     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, pszSizeName, &pt);
 691     if(FAILED(hr)) return hr;
 692
 693     tmp = pt->pszAvailColors;
 694     while(dwColorNum && *tmp) {
 695         dwColorNum--;
 696         tmp += lstrlenW(tmp)+1;
 697     }
 698     if(!dwColorNum && *tmp) {
 699         TRACE("%s\n", debugstr_w(tmp));
 700         lstrcpyW(pszColorName, tmp);
 701     }
 702     else
 703         hr = E_PROP_ID_UNSUPPORTED;
 704
 705     MSSTYLES_CloseThemeFile(pt);
 706     return hr;
 707 }
 708
 709 /**********************************************************************
 710  *      EnumThemeSizes                                     (UXTHEME.10)
 711  *
 712  * Enumerate theme colors available with a particular size
 713  *
 714  * PARAMS
 715  *     pszThemeFileName    Path to a msstyles theme file
 716  *     pszColorName        Theme color to enumerate available sizes
 717  *                         If NULL the default theme color is used
 718  *     dwSizeNum           Size index to retrieve, increment from 0
 719  *     pszSizeName         Output size name
 720  *
 721  * RETURNS
 722  *     S_OK on success
 723  *     E_PROP_ID_UNSUPPORTED when dwSizeName does not refer to a size
 724  *          or when pszColorName does not refer to a valid color
 725  *
 726  * NOTES
 727  * XP fails with E_POINTER when pszSizeName points to a buffer smaller then 605
 728  * characters
 729  *
 730  * Not very efficient that I'm opening & validating the theme every call, but
 731  * this is undocumented and almost never called..
 732  * (and this is how windows works too)
 733  */
 734 HRESULT WINAPI EnumThemeSizes(LPWSTR pszThemeFileName, LPWSTR pszColorName,
 735                               DWORD dwSizeNum, LPWSTR pszSizeName)
 736 {
 737     PTHEME_FILE pt;
 738     HRESULT hr;
 739     LPWSTR tmp;
 740     TRACE("(%s,%s,%ld)\n", debugstr_w(pszThemeFileName),
 741           debugstr_w(pszColorName), dwSizeNum);
 742
 743     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, pszColorName, NULL, &pt);
 744     if(FAILED(hr)) return hr;
 745
 746     tmp = pt->pszAvailSizes;
 747     while(dwSizeNum && *tmp) {
 748         dwSizeNum--;
 749         tmp += lstrlenW(tmp)+1;
 750     }
 751     if(!dwSizeNum && *tmp) {
 752         TRACE("%s\n", debugstr_w(tmp));
 753         lstrcpyW(pszSizeName, tmp);
 754     }
 755     else
 756         hr = E_PROP_ID_UNSUPPORTED;
 757
 758     MSSTYLES_CloseThemeFile(pt);
 759     return hr;
 760 }
 761
 762 /**********************************************************************
 763  *      ParseThemeIniFile                                  (UXTHEME.11)
 764  *
 765  * Enumerate data in a theme INI file.
 766  *
 767  * PARAMS
 768  *     pszIniFileName      Path to a theme ini file
 769  *     pszUnknown          Cannot be NULL, L"" is valid
 770  *     callback            Called for each found entry
 771  *     lpData              Passed through to callback
 772  *
 773  * RETURNS
 774  *     S_OK on success
 775  *     0x800706488 (Unknown property) when enumeration is canceled from callback
 776  *
 777  * NOTES
 778  * When pszUnknown is NULL the callback is never called, the value does not seem to surve
 779  * any other purpose
 780  */
 781 HRESULT WINAPI ParseThemeIniFile(LPCWSTR pszIniFileName, LPWSTR pszUnknown,
 782                                  ParseThemeIniFileProc callback, LPVOID lpData)
 783 {
 784     FIXME("%s %s: stub\n", debugstr_w(pszIniFileName), debugstr_w(pszUnknown));
 785     return ERROR_CALL_NOT_IMPLEMENTED;
 786 }
 787
 788 /**********************************************************************
 789  *      CheckThemeSignature                                (UXTHEME.29)
 790  *
 791  * Validates the signature of a theme file
 792  *
 793  * PARAMS
 794  *     pszIniFileName      Path to a theme file
 795  */
 796 HRESULT WINAPI CheckThemeSignature(LPCWSTR pszThemeFileName)
 797 {
 798     PTHEME_FILE pt;
 799     HRESULT hr;
 800     TRACE("(%s)\n", debugstr_w(pszThemeFileName));
 801     hr = MSSTYLES_OpenThemeFile(pszThemeFileName, NULL, NULL, &pt);
 802     if(FAILED(hr))
 803         return hr;
 804     MSSTYLES_CloseThemeFile(pt);
 805     return S_OK;
 806 }