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

   1 /*****************************************************************************
   2  * plugin.cpp: ActiveX control for VLC
   3  *****************************************************************************
   4  * Copyright (C) 2006 the VideoLAN team
   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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  21  *****************************************************************************/
  22
  23 #include "plugin.h"
  24
  25 #include "oleobject.h"
  26 #include "olecontrol.h"
  27 #include "oleinplaceobject.h"
  28 #include "oleinplaceactiveobject.h"
  29 #include "persistpropbag.h"
  30 #include "persiststreaminit.h"
  31 #include "persiststorage.h"
  32 #include "provideclassinfo.h"
  33 #include "connectioncontainer.h"
  34 #include "objectsafety.h"
  35 #include "vlccontrol.h"
  36 #include "vlccontrol2.h"
  37 #include "viewobject.h"
  38 #include "dataobject.h"
  39 #include "supporterrorinfo.h"
  40
  41 #include "utils.h"
  42
  43 #include <string.h>
  44 #include <winreg.h>
  45 #include <winuser.h>
  46 #include <servprov.h>
  47 #include <shlwapi.h>
  48 #include <wininet.h>
  49
  50 using namespace std;
  51
  52 ////////////////////////////////////////////////////////////////////////
  53 //class factory
  54
  55 static LRESULT CALLBACK VLCInPlaceClassWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
  56     VLCPlugin *p_instance = reinterpret_cast<VLCPlugin *>(GetWindowLongPtr(hWnd, GWLP_USERDATA));
  57
  58     switch( uMsg )
  59     {
  60         case WM_ERASEBKGND:
  61             return 1L;
  62
  63         case WM_PAINT:
  64             PAINTSTRUCT ps;
  65             RECT pr;
  66             if( GetUpdateRect(hWnd, &pr, FALSE) )
  67             {
  68                 RECT bounds;
  69                 GetClientRect(hWnd, &bounds);
  70                 BeginPaint(hWnd, &ps);
  71                 p_instance->onPaint(ps.hdc, bounds, pr);
  72                 EndPaint(hWnd, &ps);
  73             }
  74             return 0L;
  75
  76         default:
  77             return DefWindowProc(hWnd, uMsg, wParam, lParam);
  78     }
  79 };
  80
  81 VLCPluginClass::VLCPluginClass(LONG *p_class_ref, HINSTANCE hInstance, REFCLSID rclsid) :
  82     _p_class_ref(p_class_ref),
  83     _hinstance(hInstance),
  84     _classid(rclsid),
  85     _inplace_picture(NULL)
  86 {
  87     WNDCLASS wClass;
  88
  89     if( ! GetClassInfo(hInstance, getInPlaceWndClassName(), &wClass) )
  90     {
  91         wClass.style          = CS_NOCLOSE|CS_DBLCLKS;
  92         wClass.lpfnWndProc    = VLCInPlaceClassWndProc;
  93         wClass.cbClsExtra     = 0;
  94         wClass.cbWndExtra     = 0;
  95         wClass.hInstance      = hInstance;
  96         wClass.hIcon          = NULL;
  97         wClass.hCursor        = LoadCursor(NULL, IDC_ARROW);
  98         wClass.hbrBackground  = NULL;
  99         wClass.lpszMenuName   = NULL;
 100         wClass.lpszClassName  = getInPlaceWndClassName();
 101
 102         _inplace_wndclass_atom = RegisterClass(&wClass);
 103     }
 104     else
 105     {
 106         _inplace_wndclass_atom = 0;
 107     }
 108
 109     HBITMAP hbitmap = (HBITMAP)LoadImage(getHInstance(), TEXT("INPLACE-PICT"), IMAGE_BITMAP, 0, 0, LR_DEFAULTCOLOR);
 110     if( NULL != hbitmap )
 111     {
 112         PICTDESC pictDesc;
 113
 114         pictDesc.cbSizeofstruct = sizeof(PICTDESC);
 115         pictDesc.picType        = PICTYPE_BITMAP;
 116         pictDesc.bmp.hbitmap    = hbitmap;
 117         pictDesc.bmp.hpal       = NULL;
 118
 119         if( FAILED(OleCreatePictureIndirect(&pictDesc, IID_IPicture, TRUE, reinterpret_cast<LPVOID*>(&_inplace_picture))) )
 120             _inplace_picture = NULL;
 121     }
 122     AddRef();
 123 };
 124
 125 VLCPluginClass::~VLCPluginClass()
 126 {
 127     if( 0 != _inplace_wndclass_atom )
 128         UnregisterClass(MAKEINTATOM(_inplace_wndclass_atom), _hinstance);
 129
 130     if( NULL != _inplace_picture )
 131         _inplace_picture->Release();
 132 };
 133
 134 STDMETHODIMP VLCPluginClass::QueryInterface(REFIID riid, void **ppv)
 135 {
 136     if( NULL == ppv )
 137         return E_INVALIDARG;
 138
 139     if( (IID_IUnknown == riid)
 140      || (IID_IClassFactory == riid) )
 141     {
 142         AddRef();
 143         *ppv = reinterpret_cast<LPVOID>(this);
 144
 145         return NOERROR;
 146     }
 147
 148     *ppv = NULL;
 149
 150     return E_NOINTERFACE;
 151 };
 152
 153 STDMETHODIMP_(ULONG) VLCPluginClass::AddRef(void)
 154 {
 155     return InterlockedIncrement(_p_class_ref);
 156 };
 157
 158 STDMETHODIMP_(ULONG) VLCPluginClass::Release(void)
 159 {
 160     ULONG refcount = InterlockedDecrement(_p_class_ref);
 161     if( 0 == refcount )
 162     {
 163         delete this;
 164         return 0;
 165     }
 166     return refcount;
 167 };
 168
 169 STDMETHODIMP VLCPluginClass::CreateInstance(LPUNKNOWN pUnkOuter, REFIID riid, void **ppv)
 170 {
 171     if( NULL == ppv )
 172         return E_POINTER;
 173
 174     *ppv = NULL;
 175
 176     if( (NULL != pUnkOuter) && (IID_IUnknown != riid) ) {
 177         return CLASS_E_NOAGGREGATION;
 178     }
 179
 180     VLCPlugin *plugin = new VLCPlugin(this, pUnkOuter);
 181     if( NULL != plugin )
 182     {
 183         HRESULT hr = plugin->QueryInterface(riid, ppv);
 184         // the following will destroy the object if QueryInterface() failed
 185         plugin->Release();
 186         return hr;
 187     }
 188     return E_OUTOFMEMORY;
 189 };
 190
 191 STDMETHODIMP VLCPluginClass::LockServer(BOOL fLock)
 192 {
 193     if( fLock )
 194         AddRef();
 195     else
 196         Release();
 197
 198     return S_OK;
 199 };
 200
 201 ////////////////////////////////////////////////////////////////////////
 202
 203 VLCPlugin::VLCPlugin(VLCPluginClass *p_class, LPUNKNOWN pUnkOuter) :
 204     _inplacewnd(NULL),
 205     _p_class(p_class),
 206     _i_ref(1UL),
 207     _p_libvlc(NULL),
 208     _i_codepage(CP_ACP),
 209     _b_usermode(TRUE)
 210 {
 211     p_class->AddRef();
 212
 213     vlcOleControl = new VLCOleControl(this);
 214     vlcOleInPlaceObject = new VLCOleInPlaceObject(this);
 215     vlcOleInPlaceActiveObject = new VLCOleInPlaceActiveObject(this);
 216     vlcPersistStorage = new VLCPersistStorage(this);
 217     vlcPersistStreamInit = new VLCPersistStreamInit(this);
 218     vlcPersistPropertyBag = new VLCPersistPropertyBag(this);
 219     vlcProvideClassInfo = new VLCProvideClassInfo(this);
 220     vlcConnectionPointContainer = new VLCConnectionPointContainer(this);
 221     vlcObjectSafety = new VLCObjectSafety(this);
 222     vlcControl = new VLCControl(this);
 223     vlcControl2 = new VLCControl2(this);
 224     vlcViewObject = new VLCViewObject(this);
 225     vlcDataObject = new VLCDataObject(this);
 226     vlcOleObject = new VLCOleObject(this);
 227     vlcSupportErrorInfo = new VLCSupportErrorInfo(this);
 228
 229     // configure controlling IUnknown interface for implemented interfaces
 230     this->pUnkOuter = (NULL != pUnkOuter) ? pUnkOuter : dynamic_cast<LPUNKNOWN>(this);
 231
 232     // default picure
 233     _p_pict = p_class->getInPlacePict();
 234
 235     // make sure that persistable properties are initialized
 236     onInit();
 237 };
 238
 239 VLCPlugin::~VLCPlugin()
 240 {
 241     delete vlcSupportErrorInfo;
 242     delete vlcOleObject;
 243     delete vlcDataObject;
 244     delete vlcViewObject;
 245     delete vlcControl2;
 246     delete vlcControl;
 247     delete vlcConnectionPointContainer;
 248     delete vlcProvideClassInfo;
 249     delete vlcPersistPropertyBag;
 250     delete vlcPersistStreamInit;
 251     delete vlcPersistStorage;
 252     delete vlcOleInPlaceActiveObject;
 253     delete vlcOleInPlaceObject;
 254     delete vlcObjectSafety;
 255
 256     delete vlcOleControl;
 257     if( _p_pict )
 258         _p_pict->Release();
 259
 260     SysFreeString(_bstr_mrl);
 261     SysFreeString(_bstr_baseurl);
 262
 263     _p_class->Release();
 264 };
 265
 266 STDMETHODIMP VLCPlugin::QueryInterface(REFIID riid, void **ppv)
 267 {
 268     if( NULL == ppv )
 269         return E_INVALIDARG;
 270
 271     if( IID_IUnknown == riid )
 272         *ppv = reinterpret_cast<LPVOID>(this);
 273     else if( IID_IOleObject == riid )
 274         *ppv = reinterpret_cast<LPVOID>(vlcOleObject);
 275     else if( IID_IOleControl == riid )
 276         *ppv = reinterpret_cast<LPVOID>(vlcOleControl);
 277     else if( IID_IOleWindow == riid )
 278         *ppv = reinterpret_cast<LPVOID>(vlcOleInPlaceObject);
 279     else if( IID_IOleInPlaceObject == riid )
 280         *ppv = reinterpret_cast<LPVOID>(vlcOleInPlaceObject);
 281     else if( IID_IOleInPlaceActiveObject == riid )
 282         *ppv = reinterpret_cast<LPVOID>(vlcOleInPlaceActiveObject);
 283     else if( IID_IPersist == riid )
 284         *ppv = reinterpret_cast<LPVOID>(vlcPersistStreamInit);
 285     else if( IID_IPersistStreamInit == riid )
 286         *ppv = reinterpret_cast<LPVOID>(vlcPersistStreamInit);
 287     else if( IID_IPersistStorage == riid )
 288         *ppv = reinterpret_cast<LPVOID>(vlcPersistStorage);
 289     else if( IID_IPersistPropertyBag == riid )
 290         *ppv = reinterpret_cast<LPVOID>(vlcPersistPropertyBag);
 291     else if( IID_IProvideClassInfo == riid )
 292         *ppv = reinterpret_cast<LPVOID>(vlcProvideClassInfo);
 293     else if( IID_IProvideClassInfo2 == riid )
 294         *ppv = reinterpret_cast<LPVOID>(vlcProvideClassInfo);
 295     else if( IID_IConnectionPointContainer == riid )
 296         *ppv = reinterpret_cast<LPVOID>(vlcConnectionPointContainer);
 297     else if( IID_IObjectSafety == riid )
 298         *ppv = reinterpret_cast<LPVOID>(vlcObjectSafety);
 299     else if( IID_IDispatch == riid )
 300         *ppv = (CLSID_VLCPlugin2 == getClassID()) ?
 301                 reinterpret_cast<LPVOID>(vlcControl2) :
 302                 reinterpret_cast<LPVOID>(vlcControl);
 303     else if( IID_IVLCControl == riid )
 304         *ppv = reinterpret_cast<LPVOID>(vlcControl);
 305     else if( IID_IVLCControl2 == riid )
 306         *ppv = reinterpret_cast<LPVOID>(vlcControl2);
 307     else if( IID_IViewObject == riid )
 308         *ppv = reinterpret_cast<LPVOID>(vlcViewObject);
 309     else if( IID_IViewObject2 == riid )
 310         *ppv = reinterpret_cast<LPVOID>(vlcViewObject);
 311     else if( IID_IDataObject == riid )
 312         *ppv = reinterpret_cast<LPVOID>(vlcDataObject);
 313     else if( IID_ISupportErrorInfo == riid )
 314         *ppv = reinterpret_cast<LPVOID>(vlcSupportErrorInfo);
 315     else
 316     {
 317         *ppv = NULL;
 318         return E_NOINTERFACE;
 319     }
 320     ((LPUNKNOWN)*ppv)->AddRef();
 321     return NOERROR;
 322 };
 323
 324 STDMETHODIMP_(ULONG) VLCPlugin::AddRef(void)
 325 {
 326     return InterlockedIncrement((LONG *)&_i_ref);
 327 };
 328
 329 STDMETHODIMP_(ULONG) VLCPlugin::Release(void)
 330 {
 331     if( ! InterlockedDecrement((LONG *)&_i_ref) )
 332     {
 333         delete this;
 334         return 0;
 335     }
 336     return _i_ref;
 337 };
 338
 339 //////////////////////////////////////
 340
 341 HRESULT VLCPlugin::onInit(void)
 342 {
 343     if( NULL == _p_libvlc )
 344     {
 345         // initialize persistable properties
 346         _b_autoplay = TRUE;
 347         _b_autoloop = FALSE;
 348         _bstr_baseurl = NULL;
 349         _bstr_mrl = NULL;
 350         _b_visible = TRUE;
 351         _b_mute = FALSE;
 352         _i_volume = 50;
 353         _i_time   = 0;
 354         // set default/preferred size (320x240) pixels in HIMETRIC
 355         HDC hDC = CreateDevDC(NULL);
 356         _extent.cx = 320;
 357         _extent.cy = 240;
 358         HimetricFromDP(hDC, (LPPOINT)&_extent, 1);
 359         DeleteDC(hDC);
 360
 361         return S_OK;
 362     }
 363     return CO_E_ALREADYINITIALIZED;
 364 };
 365
 366 HRESULT VLCPlugin::onLoad(void)
 367 {
 368     if( SysStringLen(_bstr_baseurl) == 0 )
 369     {
 370         /*
 371         ** try to retreive the base URL using the client site moniker, which for Internet Explorer
 372         ** is the URL of the page the plugin is embedded into.
 373         */
 374         LPOLECLIENTSITE pClientSite;
 375         if( SUCCEEDED(vlcOleObject->GetClientSite(&pClientSite)) && (NULL != pClientSite) )
 376         {
 377             IBindCtx *pBC = 0;
 378             if( SUCCEEDED(CreateBindCtx(0, &pBC)) )
 379             {
 380                 LPMONIKER pContMoniker = NULL;
 381                 if( SUCCEEDED(pClientSite->GetMoniker(OLEGETMONIKER_ONLYIFTHERE,
 382                                 OLEWHICHMK_CONTAINER, &pContMoniker)) )
 383                 {
 384                     LPOLESTR base_url;
 385                     if( SUCCEEDED(pContMoniker->GetDisplayName(pBC, NULL, &base_url)) )
 386                     {
 387                         /*
 388                         ** check that the moniker name is a URL
 389                         */
 390                         if( UrlIsW(base_url, URLIS_URL) )
 391                         {
 392                             /* copy base URL */
 393                             _bstr_baseurl = SysAllocString(base_url);
 394                         }
 395                         CoTaskMemFree(base_url);
 396                     }
 397                 }
 398             }
 399         }
 400     }
 401     setDirty(FALSE);
 402     return S_OK;
 403 };
 404
 405 HRESULT VLCPlugin::getVLCObject(int* i_vlc)
 406 {
 407     libvlc_instance_t *p_libvlc;
 408     HRESULT result = getVLC(&p_libvlc);
 409     if( SUCCEEDED(result) )
 410     {
 411         *i_vlc = libvlc_get_vlc_id(p_libvlc);
 412     }
 413     else
 414     {
 415         *i_vlc = 0;
 416     }
 417     return result;
 418 }
 419
 420 HRESULT VLCPlugin::getVLC(libvlc_instance_t** pp_libvlc)
 421 {
 422     extern HMODULE DllGetModule();
 423
 424     if( ! isRunning() )
 425     {
 426         /*
 427         ** default initialization options
 428         */
 429         char *ppsz_argv[32] = { "vlc" };
 430         int   ppsz_argc = 1;
 431
 432         char p_progpath[MAX_PATH];
 433         {
 434             TCHAR w_progpath[MAX_PATH];
 435             DWORD len = GetModuleFileName(DllGetModule(), w_progpath, MAX_PATH);
 436             if( len > 0 )
 437             {
 438                 len = WideCharToMultiByte(CP_UTF8, 0, w_progpath, len, p_progpath,
 439                            sizeof(p_progpath)-1, NULL, NULL);
 440                 if( len > 0 )
 441                 {
 442                     p_progpath[len] = '\0';
 443                     ppsz_argv[0] = p_progpath;
 444                 }
 445             }
 446         }
 447
 448         ppsz_argv[ppsz_argc++] = "-vv";
 449
 450         HKEY h_key;
 451         char p_pluginpath[MAX_PATH];
 452         if( RegOpenKeyEx( HKEY_LOCAL_MACHINE, TEXT("Software\\VideoLAN\\VLC"),
 453                           0, KEY_READ, &h_key ) == ERROR_SUCCESS )
 454         {
 455             DWORD i_type, i_data = MAX_PATH;
 456             TCHAR w_pluginpath[MAX_PATH];
 457             if( RegQueryValueEx( h_key, TEXT("InstallDir"), 0, &i_type,
 458                                  (LPBYTE)w_pluginpath, &i_data ) == ERROR_SUCCESS )
 459             {
 460                 if( i_type == REG_SZ )
 461                 {
 462                     if( WideCharToMultiByte(CP_UTF8, 0, w_pluginpath, -1, p_pluginpath,
 463                              sizeof(p_pluginpath)-sizeof("\\plugins")+1, NULL, NULL) )
 464                     {
 465                         strcat( p_pluginpath, "\\plugins" );
 466                         ppsz_argv[ppsz_argc++] = "--plugin-path";
 467                         ppsz_argv[ppsz_argc++] = p_pluginpath;
 468                     }
 469                 }
 470             }
 471             RegCloseKey( h_key );
 472         }
 473
 474         // make sure plugin isn't affected with VLC single instance mode
 475         ppsz_argv[ppsz_argc++] = "--no-one-instance";
 476
 477         /* common settings */
 478         ppsz_argv[ppsz_argc++] = "--no-stats";
 479         ppsz_argv[ppsz_argc++] = "--no-media-library";
 480         ppsz_argv[ppsz_argc++] = "--intf=dummy";
 481
 482         // loop mode is a configuration option only
 483         if( _b_autoloop )
 484             ppsz_argv[ppsz_argc++] = "--loop";
 485
 486         _p_libvlc = libvlc_new(ppsz_argc, ppsz_argv, NULL);
 487         if( NULL == _p_libvlc )
 488         {
 489             *pp_libvlc = NULL;
 490             return E_FAIL;
 491         }
 492
 493         // initial volume setting
 494         libvlc_audio_set_volume(_p_libvlc, _i_volume, NULL);
 495         if( _b_mute )
 496         {
 497             libvlc_audio_set_mute(_p_libvlc, TRUE, NULL);
 498         }
 499
 500         // initial playlist item
 501         if( SysStringLen(_bstr_mrl) > 0 )
 502         {
 503             char *psz_mrl = NULL;
 504
 505             if( SysStringLen(_bstr_baseurl) > 0 )
 506             {
 507                 /*
 508                 ** if the MRL a relative URL, we should end up with an absolute URL
 509                 */
 510                 LPWSTR abs_url = CombineURL(_bstr_baseurl, _bstr_mrl);
 511                 if( NULL != abs_url )
 512                 {
 513                     psz_mrl = CStrFromWSTR(CP_UTF8, abs_url, wcslen(abs_url));
 514                     CoTaskMemFree(abs_url);
 515                 }
 516                 else
 517                 {
 518                     psz_mrl = CStrFromBSTR(CP_UTF8, _bstr_mrl);
 519                 }
 520             }
 521             else
 522             {
 523                 /*
 524                 ** baseURL is empty, assume MRL is absolute
 525                 */
 526                 psz_mrl = CStrFromBSTR(CP_UTF8, _bstr_mrl);
 527             }
 528             if( NULL != psz_mrl )
 529             {
 530                 const char *options[1];
 531                 int i_options = 0;
 532
 533                 char timeBuffer[32];
 534                 if( _i_time )
 535                 {
 536                     snprintf(timeBuffer, sizeof(timeBuffer), ":start-time=%d", _i_time);
 537                     options[i_options++] = timeBuffer;
 538                 }
 539                 // add default target to playlist
 540                 libvlc_playlist_add_extended(_p_libvlc, psz_mrl, NULL, i_options, options, NULL);
 541                 CoTaskMemFree(psz_mrl);
 542             }
 543         }
 544     }
 545     *pp_libvlc = _p_libvlc;
 546     return S_OK;
 547 };
 548
 549 void VLCPlugin::setErrorInfo(REFIID riid, const char *description)
 550 {
 551     vlcSupportErrorInfo->setErrorInfo( getClassID() == CLSID_VLCPlugin2 ?
 552         OLESTR("VideoLAN.VLCPlugin.2") : OLESTR("VideoLAN.VLCPlugin.1"),
 553         riid, description );
 554 };
 555
 556 HRESULT VLCPlugin::onAmbientChanged(LPUNKNOWN pContainer, DISPID dispID)
 557 {
 558     VARIANT v;
 559     switch( dispID )
 560     {
 561         case DISPID_AMBIENT_BACKCOLOR:
 562             break;
 563         case DISPID_AMBIENT_DISPLAYNAME:
 564             break;
 565         case DISPID_AMBIENT_FONT:
 566             break;
 567         case DISPID_AMBIENT_FORECOLOR:
 568             break;
 569         case DISPID_AMBIENT_LOCALEID:
 570             break;
 571         case DISPID_AMBIENT_MESSAGEREFLECT:
 572             break;
 573         case DISPID_AMBIENT_SCALEUNITS:
 574             break;
 575         case DISPID_AMBIENT_TEXTALIGN:
 576             break;
 577         case DISPID_AMBIENT_USERMODE:
 578             VariantInit(&v);
 579             V_VT(&v) = VT_BOOL;
 580             if( SUCCEEDED(GetObjectProperty(pContainer, dispID, v)) )
 581             {
 582                 setUserMode(V_BOOL(&v) != VARIANT_FALSE);
 583             }
 584             break;
 585         case DISPID_AMBIENT_UIDEAD:
 586             break;
 587         case DISPID_AMBIENT_SHOWGRABHANDLES:
 588             break;
 589         case DISPID_AMBIENT_SHOWHATCHING:
 590             break;
 591         case DISPID_AMBIENT_DISPLAYASDEFAULT:
 592             break;
 593         case DISPID_AMBIENT_SUPPORTSMNEMONICS:
 594             break;
 595         case DISPID_AMBIENT_AUTOCLIP:
 596             break;
 597         case DISPID_AMBIENT_APPEARANCE:
 598             break;
 599         case DISPID_AMBIENT_CODEPAGE:
 600             VariantInit(&v);
 601             V_VT(&v) = VT_I4;
 602             if( SUCCEEDED(GetObjectProperty(pContainer, dispID, v)) )
 603             {
 604                 setCodePage(V_I4(&v));
 605             }
 606             break;
 607         case DISPID_AMBIENT_PALETTE:
 608             break;
 609         case DISPID_AMBIENT_CHARSET:
 610             break;
 611         case DISPID_AMBIENT_RIGHTTOLEFT:
 612             break;
 613         case DISPID_AMBIENT_TOPTOBOTTOM:
 614             break;
 615         case DISPID_UNKNOWN:
 616             /*
 617             ** multiple property change, look up the ones we are interested in
 618             */
 619             VariantInit(&v);
 620             V_VT(&v) = VT_BOOL;
 621             if( SUCCEEDED(GetObjectProperty(pContainer, DISPID_AMBIENT_USERMODE, v)) )
 622             {
 623                 setUserMode(V_BOOL(&v) != VARIANT_FALSE);
 624             }
 625             VariantInit(&v);
 626             V_VT(&v) = VT_I4;
 627             if( SUCCEEDED(GetObjectProperty(pContainer, DISPID_AMBIENT_CODEPAGE, v)) )
 628             {
 629                 setCodePage(V_I4(&v));
 630             }
 631             break;
 632     }
 633     return S_OK;
 634 };
 635
 636 HRESULT VLCPlugin::onClose(DWORD dwSaveOption)
 637 {
 638     if( isInPlaceActive() )
 639     {
 640         onInPlaceDeactivate();
 641     }
 642     if( isRunning() )
 643     {
 644         libvlc_instance_t* p_libvlc = _p_libvlc;
 645
 646         IVLCLog *p_log;
 647         if( SUCCEEDED(vlcControl2->get_log(&p_log)) )
 648         {
 649             // make sure the log is disabled
 650             p_log->put_verbosity(-1);
 651             p_log->Release();
 652         }
 653
 654         _p_libvlc = NULL;
 655         vlcDataObject->onClose();
 656
 657         libvlc_destroy(p_libvlc, NULL );
 658     }
 659     return S_OK;
 660 };
 661
 662 BOOL VLCPlugin::isInPlaceActive(void)
 663 {
 664     return (NULL != _inplacewnd);
 665 };
 666
 667 HRESULT VLCPlugin::onActivateInPlace(LPMSG lpMesg, HWND hwndParent, LPCRECT lprcPosRect, LPCRECT lprcClipRect)
 668 {
 669     RECT clipRect = *lprcClipRect;
 670
 671     /*
 672     ** record keeping of control geometry within container
 673     */
 674     _posRect = *lprcPosRect;
 675
 676     /*
 677     ** Create a window for in place activated control.
 678     ** the window geometry matches the control viewport
 679     ** within container so that embedded video is always
 680     ** properly displayed.
 681     */
 682     _inplacewnd = CreateWindow(_p_class->getInPlaceWndClassName(),
 683             TEXT("VLC Plugin In-Place Window"),
 684             WS_CHILD|WS_CLIPCHILDREN|WS_CLIPSIBLINGS,
 685             lprcPosRect->left,
 686             lprcPosRect->top,
 687             lprcPosRect->right-lprcPosRect->left,
 688             lprcPosRect->bottom-lprcPosRect->top,
 689             hwndParent,
 690             0,
 691             _p_class->getHInstance(),
 692             NULL
 693            );
 694
 695     if( NULL == _inplacewnd )
 696         return E_FAIL;
 697
 698     SetWindowLongPtr(_inplacewnd, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(this));
 699
 700     /* change cliprect coordinates system relative to window bounding rect */
 701     OffsetRect(&clipRect, -lprcPosRect->left, -lprcPosRect->top);
 702
 703     HRGN clipRgn = CreateRectRgnIndirect(&clipRect);
 704     SetWindowRgn(_inplacewnd, clipRgn, TRUE);
 705
 706     if( _b_usermode )
 707     {
 708         /* will run vlc if not done already */
 709         libvlc_instance_t* p_libvlc;
 710         HRESULT result = getVLC(&p_libvlc);
 711         if( FAILED(result) )
 712             return result;
 713
 714         /* set internal video width and height */
 715         libvlc_video_set_size(p_libvlc,
 716             lprcPosRect->right-lprcPosRect->left,
 717             lprcPosRect->bottom-lprcPosRect->top,
 718             NULL );
 719
 720         /* set internal video parent window */
 721         libvlc_video_set_parent(p_libvlc,
 722             reinterpret_cast<libvlc_drawable_t>(_inplacewnd), NULL);
 723
 724         if( _b_autoplay & (libvlc_playlist_items_count(p_libvlc, NULL) > 0) )
 725         {
 726             libvlc_playlist_play(p_libvlc, 0, 0, NULL, NULL);
 727             fireOnPlayEvent();
 728         }
 729     }
 730
 731     if( isVisible() )
 732         ShowWindow(_inplacewnd, SW_SHOW);
 733
 734     return S_OK;
 735 };
 736
 737 HRESULT VLCPlugin::onInPlaceDeactivate(void)
 738 {
 739     if( isRunning() )
 740     {
 741         libvlc_playlist_stop(_p_libvlc, NULL);
 742         fireOnStopEvent();
 743     }
 744
 745     DestroyWindow(_inplacewnd);
 746     _inplacewnd = NULL;
 747
 748     return S_OK;
 749 };
 750
 751 void VLCPlugin::setVisible(BOOL fVisible)
 752 {
 753     if( fVisible != _b_visible )
 754     {
 755         _b_visible = fVisible;
 756         if( isInPlaceActive() )
 757         {
 758             ShowWindow(_inplacewnd, fVisible ? SW_SHOW : SW_HIDE);
 759             if( fVisible )
 760                 InvalidateRect(_inplacewnd, NULL, TRUE);
 761         }
 762         setDirty(TRUE);
 763         firePropChangedEvent(DISPID_Visible);
 764     }
 765 };
 766
 767 void VLCPlugin::setVolume(int volume)
 768 {
 769     if( volume < 0 )
 770         volume = 0;
 771     else if( volume > 200 )
 772         volume = 200;
 773
 774     if( volume != _i_volume )
 775     {
 776         _i_volume = volume;
 777         if( isRunning() )
 778         {
 779             libvlc_audio_set_volume(_p_libvlc, _i_volume, NULL);
 780         }
 781         setDirty(TRUE);
 782     }
 783 };
 784
 785 void VLCPlugin::setTime(int seconds)
 786 {
 787     if( seconds < 0 )
 788         seconds = 0;
 789
 790     if( seconds != _i_time )
 791     {
 792         setStartTime(_i_time);
 793         if( isRunning() )
 794         {
 795             libvlc_media_instance_t *p_md = libvlc_playlist_get_media_instance(_p_libvlc, NULL);
 796             if( NULL != p_md )
 797             {
 798                 libvlc_media_instance_set_time(p_md, _i_time, NULL);
 799                 libvlc_media_instance_release(p_md);
 800             }
 801         }
 802     }
 803 };
 804
 805 void VLCPlugin::setFocus(BOOL fFocus)
 806 {
 807     if( fFocus )
 808         SetActiveWindow(_inplacewnd);
 809 };
 810
 811 BOOL VLCPlugin::hasFocus(void)
 812 {
 813     return GetActiveWindow() == _inplacewnd;
 814 };
 815
 816 void VLCPlugin::onDraw(DVTARGETDEVICE * ptd, HDC hicTargetDev,
 817         HDC hdcDraw, LPCRECTL lprcBounds, LPCRECTL lprcWBounds)
 818 {
 819     if( isVisible() )
 820     {
 821         long width = lprcBounds->right-lprcBounds->left;
 822         long height = lprcBounds->bottom-lprcBounds->top;
 823
 824         RECT bounds = { lprcBounds->left, lprcBounds->top, lprcBounds->right, lprcBounds->bottom };
 825         FillRect(hdcDraw, &bounds, (HBRUSH)GetStockObject(WHITE_BRUSH));
 826
 827         LPPICTURE pict = getPicture();
 828         if( NULL != pict )
 829         {
 830             OLE_XSIZE_HIMETRIC picWidth;
 831             OLE_YSIZE_HIMETRIC picHeight;
 832
 833             pict->get_Width(&picWidth);
 834             pict->get_Height(&picHeight);
 835
 836             SIZEL picSize = { picWidth, picHeight };
 837
 838             if( NULL != hicTargetDev )
 839             {
 840                 DPFromHimetric(hicTargetDev, (LPPOINT)&picSize, 1);
 841             }
 842             else if( NULL != (hicTargetDev = CreateDevDC(ptd)) )
 843             {
 844                 DPFromHimetric(hicTargetDev, (LPPOINT)&picSize, 1);
 845                 DeleteDC(hicTargetDev);
 846             }
 847
 848             if( picSize.cx > width-4 )
 849                 picSize.cx = width-4;
 850             if( picSize.cy > height-4 )
 851                 picSize.cy = height-4;
 852
 853             LONG dstX = lprcBounds->left+(width-picSize.cx)/2;
 854             LONG dstY = lprcBounds->top+(height-picSize.cy)/2;
 855
 856             if( NULL != lprcWBounds )
 857             {
 858                 RECT wBounds = { lprcWBounds->left, lprcWBounds->top, lprcWBounds->right, lprcWBounds->bottom };
 859                 pict->Render(hdcDraw, dstX, dstY, picSize.cx, picSize.cy,
 860                         0L, picHeight, picWidth, -picHeight, &wBounds);
 861             }
 862             else
 863                 pict->Render(hdcDraw, dstX, dstY, picSize.cx, picSize.cy,
 864                         0L, picHeight, picWidth, -picHeight, NULL);
 865
 866             pict->Release();
 867         }
 868
 869         SelectObject(hdcDraw, GetStockObject(BLACK_BRUSH));
 870
 871         MoveToEx(hdcDraw, bounds.left, bounds.top, NULL);
 872         LineTo(hdcDraw, bounds.left+width-1, bounds.top);
 873         LineTo(hdcDraw, bounds.left+width-1, bounds.top+height-1);
 874         LineTo(hdcDraw, bounds.left, bounds.top+height-1);
 875         LineTo(hdcDraw, bounds.left, bounds.top);
 876     }
 877 };
 878
 879 void VLCPlugin::onPaint(HDC hdc, const RECT &bounds, const RECT &clipRect)
 880 {
 881     if( isVisible() )
 882     {
 883         /** if VLC is playing, it may not display any VIDEO content
 884         ** hence, draw control logo*/
 885         HDC hdcDraw = CreateCompatibleDC(hdc);
 886         if( NULL != hdcDraw )
 887         {
 888             SIZEL size = getExtent();
 889             DPFromHimetric(hdc, (LPPOINT)&size, 1);
 890             RECTL posRect = { 0, 0, size.cx, size.cy };
 891
 892             int width = bounds.right-bounds.left;
 893             int height = bounds.bottom-bounds.top;
 894
 895             HBITMAP hBitmap = CreateCompatibleBitmap(hdc, width, height);
 896             if( NULL != hBitmap )
 897             {
 898                 HBITMAP oldBmp = (HBITMAP)SelectObject(hdcDraw, hBitmap);
 899
 900                 if( (size.cx != width) || (size.cy != height) )
 901                 {
 902                     // needs to scale canvas
 903                     SetMapMode(hdcDraw, MM_ANISOTROPIC);
 904                     SetWindowExtEx(hdcDraw, size.cx, size.cy, NULL);
 905                     SetViewportExtEx(hdcDraw, width, height, NULL);
 906                 }
 907
 908                 onDraw(NULL, hdc, hdcDraw, &posRect, NULL);
 909
 910                 SetMapMode(hdcDraw, MM_TEXT);
 911                 BitBlt(hdc, bounds.left, bounds.top,
 912                         width, height,
 913                         hdcDraw, 0, 0,
 914                         SRCCOPY);
 915
 916                 SelectObject(hdcDraw, oldBmp);
 917                 DeleteObject(hBitmap);
 918             }
 919             DeleteDC(hdcDraw);
 920         }
 921     }
 922 };
 923
 924 void VLCPlugin::onPositionChange(LPCRECT lprcPosRect, LPCRECT lprcClipRect)
 925 {
 926     RECT clipRect = *lprcClipRect;
 927
 928     //RedrawWindow(GetParent(_inplacewnd), &_posRect, NULL, RDW_INVALIDATE|RDW_ERASE|RDW_ALLCHILDREN);
 929
 930     /*
 931     ** record keeping of control geometry within container
 932     */
 933     _posRect = *lprcPosRect;
 934
 935     /*
 936     ** change in-place window geometry to match clipping region
 937     */
 938     SetWindowPos(_inplacewnd, NULL,
 939             lprcPosRect->left,
 940             lprcPosRect->top,
 941             lprcPosRect->right-lprcPosRect->left,
 942             lprcPosRect->bottom-lprcPosRect->top,
 943             SWP_NOACTIVATE|
 944             SWP_NOCOPYBITS|
 945             SWP_NOZORDER|
 946             SWP_NOOWNERZORDER );
 947
 948     /* change cliprect coordinates system relative to window bounding rect */
 949     OffsetRect(&clipRect, -lprcPosRect->left, -lprcPosRect->top);
 950     HRGN clipRgn = CreateRectRgnIndirect(&clipRect);
 951     SetWindowRgn(_inplacewnd, clipRgn, FALSE);
 952
 953     //RedrawWindow(_videownd, &posRect, NULL, RDW_INVALIDATE|RDW_ERASE|RDW_ALLCHILDREN);
 954     if( isRunning() )
 955     {
 956         libvlc_video_set_size(_p_libvlc,
 957             lprcPosRect->right-lprcPosRect->left,
 958             lprcPosRect->bottom-lprcPosRect->top,
 959             NULL );
 960     }
 961 };
 962
 963 void VLCPlugin::freezeEvents(BOOL freeze)
 964 {
 965     vlcConnectionPointContainer->freezeEvents(freeze);
 966 };
 967
 968 void VLCPlugin::firePropChangedEvent(DISPID dispid)
 969 {
 970     vlcConnectionPointContainer->firePropChangedEvent(dispid);
 971 };
 972
 973 void VLCPlugin::fireOnPlayEvent(void)
 974 {
 975     DISPPARAMS dispparamsNoArgs = {NULL, NULL, 0, 0};
 976     vlcConnectionPointContainer->fireEvent(DISPID_PlayEvent, &dispparamsNoArgs);
 977 };
 978
 979 void VLCPlugin::fireOnPauseEvent(void)
 980 {
 981     DISPPARAMS dispparamsNoArgs = {NULL, NULL, 0, 0};
 982     vlcConnectionPointContainer->fireEvent(DISPID_PauseEvent, &dispparamsNoArgs);
 983 };
 984
 985 void VLCPlugin::fireOnStopEvent(void)
 986 {
 987     DISPPARAMS dispparamsNoArgs = {NULL, NULL, 0, 0};
 988     vlcConnectionPointContainer->fireEvent(DISPID_StopEvent, &dispparamsNoArgs);
 989 };