git.sesse.net Git - vlc/blob - activex/main.cpp

   1 /*****************************************************************************
   2  * main.cpp: ActiveX control for VLC
   3  *****************************************************************************
   4  * Copyright (C) 2005 VideoLAN
   5  *
   6  * Authors: Damien Fouilleul <Damien.Fouilleul@laposte.net>
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 2 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
  21  *****************************************************************************/
  22
  23 #include "plugin.h"
  24
  25 #include <comcat.h>
  26 #include <windows.h>
  27 #include <shlwapi.h>
  28
  29 using namespace std;
  30
  31 #define COMPANY_STR "VideoLAN"
  32 #define PROGRAM_STR "VLCPlugin"
  33 #define VERSION_MAJOR_STR "1"
  34 #define VERSION_MINOR_STR "0"
  35 #define DESCRIPTION "VideoLAN VLC ActiveX Plugin"
  36
  37 #define THREADING_MODEL "Apartment"
  38 #define MISC_STATUS     "131473"
  39
  40 #define PROGID_STR COMPANY_STR"."PROGRAM_STR
  41 #define VERS_PROGID_STR COMPANY_STR"."PROGRAM_STR"."VERSION_MAJOR_STR
  42 #define VERSION_STR VERSION_MAJOR_STR"."VERSION_MINOR_STR
  43
  44 #define GUID_STRLEN 39
  45
  46 /*
  47 ** MingW headers do not declare those
  48 */
  49 extern const CATID CATID_SafeForInitializing;
  50 extern const CATID CATID_SafeForScripting;
  51
  52 static LONG i_class_ref= 0;
  53 static HINSTANCE h_instance= 0;
  54
  55 STDAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
  56 {
  57     HRESULT hr = CLASS_E_CLASSNOTAVAILABLE;
  58
  59     *ppv = NULL;
  60
  61     if( CLSID_VLCPlugin == rclsid )
  62     {
  63         VLCPluginClass *plugin = new VLCPluginClass(&i_class_ref, h_instance);
  64         hr = plugin->QueryInterface(riid, ppv);
  65         plugin->Release();
  66     }
  67     return hr;
  68 };
  69
  70 STDAPI DllCanUnloadNow(VOID)
  71 {
  72     return (0 == i_class_ref) ? S_OK: S_FALSE;
  73 };
  74
  75 static LPCTSTR TStrFromGUID(REFGUID clsid)
  76 {
  77     LPOLESTR oleStr;
  78
  79     if( FAILED(StringFromIID(clsid, &oleStr)) )
  80         return NULL;
  81
  82     //check whether TCHAR and OLECHAR are both either ANSI or UNICODE
  83     if( sizeof(TCHAR) == sizeof(OLECHAR) )
  84         return (LPCTSTR)oleStr;
  85
  86     LPTSTR pct_CLSID = NULL;
  87 #ifndef OLE2ANSI
  88     size_t len = WideCharToMultiByte(CP_ACP, 0, oleStr, -1, NULL, 0, NULL, NULL);
  89     if( len > 0 )
  90     {
  91         pct_CLSID = (char *)CoTaskMemAlloc(len);
  92         WideCharToMultiByte(CP_ACP, 0, oleStr, -1, pct_CLSID, len, NULL, NULL);
  93     }
  94 #else
  95     size_t len = MutiByteToWideChar(CP_ACP, 0, oleStr, -1, NULL, 0);
  96     if( len > 0 )
  97     {
  98         clsidStr = (wchar_t *)CoTaskMemAlloc(len*sizeof(wchar_t));
  99         WideCharToMultiByte(CP_ACP, 0, oleStr, -1, pct_CLSID, len);
 100     }
 101 #endif
 102     CoTaskMemFree(oleStr);
 103     return pct_CLSID;
 104 };
 105
 106 static HKEY keyCreate(HKEY parentKey, LPCTSTR keyName)
 107 {
 108     HKEY childKey;
 109     if( ERROR_SUCCESS == RegCreateKeyEx(parentKey, keyName, 0, NULL,
 110                 REG_OPTION_NON_VOLATILE, KEY_ALL_ACCESS, NULL, &childKey, NULL) )
 111     {
 112         return childKey;
 113     }
 114     return NULL;
 115 };
 116
 117 STDAPI DllUnregisterServer(VOID)
 118 {
 119     // unregister type lib from the registry
 120     UnRegisterTypeLib(LIBID_AXVLC, 1, 0, LOCALE_NEUTRAL, SYS_WIN32);
 121
 122     // remove component categories we supports
 123     ICatRegister *pcr;
 124     if( SUCCEEDED(CoCreateInstance(CLSID_StdComponentCategoriesMgr,
 125             NULL, CLSCTX_INPROC_SERVER, IID_ICatRegister, (void**)&pcr)) ) {
 126         CATID implCategories[] = {
 127             CATID_Control,
 128             CATID_PersistsToPropertyBag,
 129             CATID_SafeForInitializing,
 130             CATID_SafeForScripting,
 131         };
 132
 133         pcr->UnRegisterClassImplCategories(CLSID_VLCPlugin,
 134                 sizeof(implCategories)/sizeof(CATID), implCategories);
 135         pcr->Release();
 136     }
 137
 138     SHDeleteKey(HKEY_CLASSES_ROOT, TEXT(VERS_PROGID_STR));
 139     SHDeleteKey(HKEY_CLASSES_ROOT, TEXT(PROGID_STR));
 140
 141     LPCTSTR psz_CLSID = TStrFromGUID(CLSID_VLCPlugin);
 142
 143     if( NULL == psz_CLSID )
 144         return E_OUTOFMEMORY;
 145
 146     HKEY hClsIDKey;
 147     if( ERROR_SUCCESS == RegOpenKeyEx(HKEY_CLASSES_ROOT, TEXT("CLSID"), 0, KEY_WRITE, &hClsIDKey) )
 148     {
 149         SHDeleteKey(hClsIDKey, psz_CLSID);
 150         RegCloseKey(hClsIDKey);
 151     }
 152     CoTaskMemFree((void *)psz_CLSID);
 153
 154     return S_OK;
 155 };
 156
 157 STDAPI DllRegisterServer(VOID)
 158 {
 159     DllUnregisterServer();
 160
 161     char DllPath[MAX_PATH];
 162     DWORD DllPathLen= GetModuleFileName(h_instance, DllPath, sizeof(DllPath)) ;
 163         if( 0 == DllPathLen )
 164         return E_UNEXPECTED;
 165
 166     LPCTSTR psz_CLSID = TStrFromGUID(CLSID_VLCPlugin);
 167
 168     if( NULL == psz_CLSID )
 169         return E_OUTOFMEMORY;
 170
 171     HKEY hBaseKey;
 172
 173     if( ERROR_SUCCESS != RegOpenKeyEx(HKEY_CLASSES_ROOT, TEXT("CLSID"), 0, KEY_CREATE_SUB_KEY, &hBaseKey) )
 174         return SELFREG_E_CLASS;
 175
 176     HKEY hClassKey = keyCreate(hBaseKey, psz_CLSID);
 177     if( NULL != hClassKey )
 178     {
 179         HKEY hSubKey;
 180
 181         // default key value
 182         RegSetValueEx(hClassKey, NULL, 0, REG_SZ,
 183                 (const BYTE*)DESCRIPTION, sizeof(DESCRIPTION));
 184
 185         // Control key value
 186         hSubKey = keyCreate(hClassKey, TEXT("Control"));
 187         RegCloseKey(hSubKey);
 188
 189 #ifdef BUILD_LOCALSERVER
 190         // LocalServer32 key value
 191         hSubKey = keyCreate(hClassKey, TEXT("LocalServer32"));
 192         RegSetValueEx(hSubKey, NULL, 0, REG_SZ,
 193                 (const BYTE*)DllPath, DllPathLen);
 194         RegCloseKey(hSubKey);
 195 #else
 196         // InprocServer32 key value
 197         hSubKey = keyCreate(hClassKey, TEXT("InprocServer32"));
 198         RegSetValueEx(hSubKey, NULL, 0, REG_SZ,
 199                 (const BYTE*)DllPath, DllPathLen);
 200         RegSetValueEx(hSubKey, TEXT("ThreadingModel"), 0, REG_SZ,
 201                 (const BYTE*)THREADING_MODEL, sizeof(THREADING_MODEL));
 202         RegCloseKey(hSubKey);
 203 #endif
 204
 205         // MiscStatus key value
 206         hSubKey = keyCreate(hClassKey, TEXT("MiscStatus\\1"));
 207         RegSetValueEx(hSubKey, NULL, 0, REG_SZ, (const BYTE*)MISC_STATUS, sizeof(MISC_STATUS));
 208         RegCloseKey(hSubKey);
 209
 210         // Programmable key value
 211         hSubKey = keyCreate(hClassKey, TEXT("Programmable"));
 212         RegCloseKey(hSubKey);
 213
 214         // ProgID key value
 215         hSubKey = keyCreate(hClassKey, TEXT("ProgID"));
 216         RegSetValueEx(hSubKey, NULL, 0, REG_SZ,
 217                 (const BYTE*)VERS_PROGID_STR, sizeof(VERS_PROGID_STR));
 218         RegCloseKey(hSubKey);
 219
 220         // VersionIndependentProgID key value
 221         hSubKey = keyCreate(hClassKey, TEXT("VersionIndependentProgID"));
 222         RegSetValueEx(hSubKey, NULL, 0, REG_SZ,
 223                 (const BYTE*)PROGID_STR, sizeof(PROGID_STR));
 224         RegCloseKey(hSubKey);
 225
 226         // Version key value
 227         hSubKey = keyCreate(hClassKey, TEXT("Version"));
 228         RegSetValueEx(hSubKey, NULL, 0, REG_SZ,
 229                 (const BYTE*)VERSION_STR, sizeof(VERSION_STR));
 230         RegCloseKey(hSubKey);
 231
 232         // TypeLib key value
 233         LPCTSTR psz_LIBID = TStrFromGUID(LIBID_AXVLC);
 234         if( NULL != psz_LIBID )
 235         {
 236             hSubKey = keyCreate(hClassKey, TEXT("TypeLib"));
 237             RegSetValueEx(hSubKey, NULL, 0, REG_SZ,
 238                     (const BYTE*)psz_LIBID, sizeof(TCHAR)*GUID_STRLEN);
 239             RegCloseKey(hSubKey);
 240         }
 241         RegCloseKey(hClassKey);
 242     }
 243     RegCloseKey(hBaseKey);
 244
 245     hBaseKey = keyCreate(HKEY_CLASSES_ROOT, TEXT(PROGID_STR));
 246     if( NULL != hBaseKey )
 247     {
 248         // default key value
 249         RegSetValueEx(hBaseKey, NULL, 0, REG_SZ,
 250                 (const BYTE*)DESCRIPTION, sizeof(DESCRIPTION));
 251
 252         HKEY hSubKey = keyCreate(hBaseKey, TEXT("CLSID"));
 253         if( NULL != hSubKey )
 254         {
 255             // default key value
 256             RegSetValueEx(hSubKey, NULL, 0, REG_SZ,
 257                     (const BYTE*)psz_CLSID, sizeof(TCHAR)*GUID_STRLEN);
 258
 259             RegCloseKey(hSubKey);
 260         }
 261         hSubKey = keyCreate(hBaseKey, TEXT("CurVer"));
 262         if( NULL != hSubKey )
 263         {
 264             // default key value
 265             RegSetValueEx(hSubKey, NULL, 0, REG_SZ,
 266                     (const BYTE*)VERS_PROGID_STR, sizeof(VERS_PROGID_STR));
 267
 268             RegCloseKey(hSubKey);
 269         }
 270         RegCloseKey(hBaseKey);
 271     }
 272
 273     hBaseKey = keyCreate(HKEY_CLASSES_ROOT, TEXT(VERS_PROGID_STR));
 274     if( NULL != hBaseKey )
 275     {
 276         // default key value
 277         RegSetValueEx(hBaseKey, NULL, 0, REG_SZ,
 278                 (const BYTE*)DESCRIPTION, sizeof(DESCRIPTION));
 279
 280         HKEY hSubKey = keyCreate(hBaseKey, TEXT("CLSID"));
 281         if( NULL != hSubKey )
 282         {
 283             // default key value
 284             RegSetValueEx(hSubKey, NULL, 0, REG_SZ,
 285                     (const BYTE*)psz_CLSID, sizeof(TCHAR)*GUID_STRLEN);
 286
 287             RegCloseKey(hSubKey);
 288         }
 289         RegCloseKey(hBaseKey);
 290     }
 291
 292     // indicate which component categories we support
 293     ICatRegister *pcr;
 294     if( SUCCEEDED(CoCreateInstance(CLSID_StdComponentCategoriesMgr,
 295             NULL, CLSCTX_INPROC_SERVER, IID_ICatRegister, (void**)&pcr)) ) {
 296         CATID implCategories[] = {
 297             CATID_Control,
 298             CATID_PersistsToPropertyBag,
 299             CATID_SafeForInitializing,
 300             CATID_SafeForScripting,
 301         };
 302
 303         pcr->RegisterClassImplCategories(CLSID_VLCPlugin,
 304                 sizeof(implCategories)/sizeof(CATID), implCategories);
 305         pcr->Release();
 306     }
 307
 308     // register type lib into the registry
 309     ITypeLib *typeLib;
 310 #ifndef OLE2ANSI
 311     size_t typeLibPathLen = MultiByteToWideChar(CP_ACP, 0, DllPath, -1, NULL, 0);
 312     if( typeLibPathLen > 0 )
 313     {
 314         LPOLESTR typeLibPath = (LPOLESTR)CoTaskMemAlloc(typeLibPathLen*sizeof(wchar_t));
 315         MultiByteToWideChar(CP_ACP, 0, DllPath, DllPathLen, typeLibPath, typeLibPathLen);
 316         if( FAILED(LoadTypeLibEx(typeLibPath, REGKIND_REGISTER, &typeLib)) )
 317             return SELFREG_E_TYPELIB;
 318         typeLib->Release();
 319         CoTaskMemFree((void *)typeLibPath);
 320     }
 321 #else
 322     if( FAILED(LoadTypeLibEx((LPOLESTR)DllPath, REGKIND_REGISTER, &typeLib)) )
 323         return SELFREG_E_TYPELIB;
 324     typeLib->Release();
 325 #endif
 326
 327     CoTaskMemFree((void *)psz_CLSID);
 328
 329     return S_OK;
 330 };
 331
 332 #ifdef BUILD_LOCALSERVER
 333
 334 /*
 335 ** easier to debug an application than a DLL on cygwin GDB :)
 336 */
 337 #include <iostream>
 338
 339 STDAPI_(int) WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR szCmdLine, int sw)
 340 {
 341     MSG msg;
 342
 343     if( FAILED(OleInitialize(NULL)) )
 344     {
 345         cerr << "cannot initialize OLE" << endl;
 346         return 1;
 347     }
 348
 349     h_instance = hInst;
 350
 351     if( FAILED(DllRegisterServer()) )
 352     {
 353         cerr << "cannot register Local Server" << endl;
 354         return 1;
 355     }
 356
 357     IUnknown *classProc = NULL;
 358
 359     if( FAILED(DllGetClassObject(CLSID_VLCPlugin, IID_IUnknown, (LPVOID *)&classProc)) )
 360         return 0;
 361
 362     DWORD dwRegisterClassObject;
 363
 364     if( FAILED(CoRegisterClassObject(CLSID_VLCPlugin, classProc,
 365         CLSCTX_LOCAL_SERVER, REGCLS_MULTIPLEUSE, &dwRegisterClassObject)) )
 366         return 0;
 367
 368     DWORD dwRegisterActiveObject;
 369
 370     if( FAILED(RegisterActiveObject(classProc, CLSID_VLCPlugin,
 371                     ACTIVEOBJECT_WEAK, &dwRegisterActiveObject)) )
 372         return 0;
 373
 374     classProc->Release();
 375
 376     /*
 377     * Polling messages from event queue
 378     */
 379     while( S_FALSE == DllCanUnloadNow() )
 380     {
 381         while( PeekMessage(&msg, NULL, 0, 0, PM_REMOVE) )
 382         {
 383             if( msg.message == WM_QUIT )
 384                 break;  // Leave the PeekMessage while() loop
 385
 386             /*if(TranslateAccelerator(ghwndApp, ghAccel, &msg))
 387                 continue;*/
 388
 389             TranslateMessage(&msg);
 390             DispatchMessage(&msg);
 391         }
 392
 393         if(msg.message == WM_QUIT)
 394             break;  // Leave the for() loop
 395
 396         WaitMessage();
 397     }
 398
 399     if( SUCCEEDED(RevokeActiveObject(dwRegisterActiveObject, NULL)) )
 400         CoRevokeClassObject(dwRegisterClassObject);
 401
 402     // Reached on WM_QUIT message
 403     CoUninitialize();
 404     return ((int) msg.wParam);
 405 };
 406
 407 #else
 408
 409 STDAPI_(BOOL) DllMain(HANDLE hModule, DWORD fdwReason, LPVOID lpReserved )
 410 {
 411     switch( fdwReason )
 412     {
 413         case DLL_PROCESS_ATTACH:
 414             h_instance = (HINSTANCE)hModule;
 415             break;
 416
 417         default:
 418             break;
 419     }
 420     return TRUE;
 421 };
 422
 423 #endif
 424