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
  40 #include "utils.h"
  41
  42 #include <string.h>
  43 #include <winreg.h>
  44 #include <winuser.h>
  45 #include <servprov.h>
  46 #include <shlwapi.h>
  47 #include <wininet.h>
  48
  49 using namespace std;
  50
  51 ////////////////////////////////////////////////////////////////////////
  52 //class factory
  53
  54 static LRESULT CALLBACK VLCInPlaceClassWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
  55     switch( uMsg )
  56     {
  57         case WM_ERASEBKGND:
  58             return 1L;
  59
  60         case WM_PAINT:
  61             PAINTSTRUCT ps;
  62             if( GetUpdateRect(hWnd, NULL, FALSE) )
  63             {
  64                 BeginPaint(hWnd, &ps);
  65                 EndPaint(hWnd, &ps);
  66             }
  67             return 0L;
  68
  69         default:
  70             return DefWindowProc(hWnd, uMsg, wParam, lParam);
  71     }
  72 };
  73
  74 static LRESULT CALLBACK VLCVideoClassWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
  75     VLCPlugin *p_instance = reinterpret_cast<VLCPlugin *>(GetWindowLongPtr(hWnd, GWLP_USERDATA));
  76
  77     switch( uMsg )
  78     {
  79         case WM_ERASEBKGND:
  80             return 1L;
  81
  82         case WM_PAINT:
  83             PAINTSTRUCT ps;
  84             RECT pr;
  85             if( GetUpdateRect(hWnd, &pr, FALSE) )
  86             {
  87                 RECT bounds;
  88                 GetClientRect(hWnd, &bounds);
  89                 BeginPaint(hWnd, &ps);
  90                 p_instance->onPaint(ps.hdc, bounds, pr);
  91                 EndPaint(hWnd, &ps);
  92             }
  93             return 0L;
  94
  95         default:
  96             return DefWindowProc(hWnd, uMsg, wParam, lParam);
  97     }
  98 };
  99
 100 VLCPluginClass::VLCPluginClass(LONG *p_class_ref, HINSTANCE hInstance, REFCLSID rclsid) :
 101     _p_class_ref(p_class_ref),
 102     _hinstance(hInstance),
 103     _classid(rclsid),
 104     _inplace_picture(NULL)
 105 {
 106     WNDCLASS wClass;
 107
 108     if( ! GetClassInfo(hInstance, getInPlaceWndClassName(), &wClass) )
 109     {
 110         wClass.style          = CS_NOCLOSE|CS_DBLCLKS;
 111         wClass.lpfnWndProc    = VLCInPlaceClassWndProc;
 112         wClass.cbClsExtra     = 0;
 113         wClass.cbWndExtra     = 0;
 114         wClass.hInstance      = hInstance;
 115         wClass.hIcon          = NULL;
 116         wClass.hCursor        = LoadCursor(NULL, IDC_ARROW);
 117         wClass.hbrBackground  = NULL;
 118         wClass.lpszMenuName   = NULL;
 119         wClass.lpszClassName  = getInPlaceWndClassName();
 120
 121         _inplace_wndclass_atom = RegisterClass(&wClass);
 122     }
 123     else
 124     {
 125         _inplace_wndclass_atom = 0;
 126     }
 127
 128     if( ! GetClassInfo(hInstance, getVideoWndClassName(), &wClass) )
 129     {
 130         wClass.style          = CS_NOCLOSE;
 131         wClass.lpfnWndProc    = VLCVideoClassWndProc;
 132         wClass.cbClsExtra     = 0;
 133         wClass.cbWndExtra     = 0;
 134         wClass.hInstance      = hInstance;
 135         wClass.hIcon          = NULL;
 136         wClass.hCursor        = LoadCursor(NULL, IDC_ARROW);
 137         wClass.hbrBackground  = NULL;
 138         wClass.lpszMenuName   = NULL;
 139         wClass.lpszClassName  = getVideoWndClassName();
 140
 141         _video_wndclass_atom = RegisterClass(&wClass);
 142     }
 143     else
 144     {
 145         _video_wndclass_atom = 0;
 146     }
 147
 148     HBITMAP hbitmap = (HBITMAP)LoadImage(getHInstance(), TEXT("INPLACE-PICT"), IMAGE_BITMAP, 0, 0, LR_DEFAULTCOLOR);
 149     if( NULL != hbitmap )
 150     {
 151         PICTDESC pictDesc;
 152
 153         pictDesc.cbSizeofstruct = sizeof(PICTDESC);
 154         pictDesc.picType        = PICTYPE_BITMAP;
 155         pictDesc.bmp.hbitmap    = hbitmap;
 156         pictDesc.bmp.hpal       = NULL;
 157
 158         if( FAILED(OleCreatePictureIndirect(&pictDesc, IID_IPicture, TRUE, reinterpret_cast<LPVOID*>(&_inplace_picture))) )
 159             _inplace_picture = NULL;
 160     }
 161     AddRef();
 162 };
 163
 164 VLCPluginClass::~VLCPluginClass()
 165 {
 166     if( 0 != _inplace_wndclass_atom )
 167         UnregisterClass(MAKEINTATOM(_inplace_wndclass_atom), _hinstance);
 168
 169     if( 0 != _video_wndclass_atom )
 170         UnregisterClass(MAKEINTATOM(_video_wndclass_atom), _hinstance);
 171
 172     if( NULL != _inplace_picture )
 173         _inplace_picture->Release();
 174 };
 175
 176 STDMETHODIMP VLCPluginClass::QueryInterface(REFIID riid, void **ppv)
 177 {
 178     if( NULL == ppv )
 179         return E_INVALIDARG;
 180
 181     if( (IID_IUnknown == riid)
 182      || (IID_IClassFactory == riid) )
 183     {
 184         AddRef();
 185         *ppv = reinterpret_cast<LPVOID>(this);
 186
 187         return NOERROR;
 188     }
 189
 190     *ppv = NULL;
 191
 192     return E_NOINTERFACE;
 193 };
 194
 195 STDMETHODIMP_(ULONG) VLCPluginClass::AddRef(void)
 196 {
 197     return InterlockedIncrement(_p_class_ref);
 198 };
 199
 200 STDMETHODIMP_(ULONG) VLCPluginClass::Release(void)
 201 {
 202     ULONG refcount = InterlockedDecrement(_p_class_ref);
 203     if( 0 == refcount )
 204     {
 205         delete this;
 206         return 0;
 207     }
 208     return refcount;
 209 };
 210
 211 STDMETHODIMP VLCPluginClass::CreateInstance(LPUNKNOWN pUnkOuter, REFIID riid, void **ppv)
 212 {
 213     if( NULL == ppv )
 214         return E_POINTER;
 215
 216     *ppv = NULL;
 217
 218     if( (NULL != pUnkOuter) && (IID_IUnknown != riid) ) {
 219         return CLASS_E_NOAGGREGATION;
 220     }
 221
 222     VLCPlugin *plugin = new VLCPlugin(this, pUnkOuter);
 223     if( NULL != plugin )
 224     {
 225         HRESULT hr = plugin->QueryInterface(riid, ppv);
 226         // the following will destroy the object if QueryInterface() failed
 227         plugin->Release();
 228         return hr;
 229     }
 230     return E_OUTOFMEMORY;
 231 };
 232
 233 STDMETHODIMP VLCPluginClass::LockServer(BOOL fLock)
 234 {
 235     if( fLock )
 236         AddRef();
 237     else
 238         Release();
 239
 240     return S_OK;
 241 };
 242
 243 ////////////////////////////////////////////////////////////////////////
 244
 245 VLCPlugin::VLCPlugin(VLCPluginClass *p_class, LPUNKNOWN pUnkOuter) :
 246     _inplacewnd(NULL),
 247     _videownd(NULL),
 248     _p_class(p_class),
 249     _i_ref(1UL),
 250     _p_libvlc(NULL),
 251     _i_codepage(CP_ACP),
 252     _b_usermode(TRUE)
 253 {
 254     p_class->AddRef();
 255
 256     vlcOleControl = new VLCOleControl(this);
 257     vlcOleInPlaceObject = new VLCOleInPlaceObject(this);
 258     vlcOleInPlaceActiveObject = new VLCOleInPlaceActiveObject(this);
 259     vlcPersistStorage = new VLCPersistStorage(this);
 260     vlcPersistStreamInit = new VLCPersistStreamInit(this);
 261     vlcPersistPropertyBag = new VLCPersistPropertyBag(this);
 262     vlcProvideClassInfo = new VLCProvideClassInfo(this);
 263     vlcConnectionPointContainer = new VLCConnectionPointContainer(this);
 264     vlcObjectSafety = new VLCObjectSafety(this);
 265     vlcControl = new VLCControl(this);
 266     vlcControl2 = new VLCControl2(this);
 267     vlcViewObject = new VLCViewObject(this);
 268     vlcDataObject = new VLCDataObject(this);
 269     vlcOleObject = new VLCOleObject(this);
 270
 271     // configure controlling IUnknown interface for implemented interfaces
 272     this->pUnkOuter = (NULL != pUnkOuter) ? pUnkOuter : dynamic_cast<LPUNKNOWN>(this);
 273
 274     // default picure
 275     _p_pict = p_class->getInPlacePict();
 276
 277     // make sure that persistable properties are initialized
 278     onInit();
 279 };
 280
 281 VLCPlugin::~VLCPlugin()
 282 {
 283     delete vlcOleObject;
 284     delete vlcDataObject;
 285     delete vlcViewObject;
 286     delete vlcControl2;
 287     delete vlcControl;
 288     delete vlcConnectionPointContainer;
 289     delete vlcProvideClassInfo;
 290     delete vlcPersistPropertyBag;
 291     delete vlcPersistStreamInit;
 292     delete vlcPersistStorage;
 293     delete vlcOleInPlaceActiveObject;
 294     delete vlcOleInPlaceObject;
 295     delete vlcObjectSafety;
 296
 297     delete vlcOleControl;
 298     if( _p_pict )
 299         _p_pict->Release();
 300
 301     SysFreeString(_bstr_mrl);
 302
 303     _p_class->Release();
 304 };
 305
 306 STDMETHODIMP VLCPlugin::QueryInterface(REFIID riid, void **ppv)
 307 {
 308     if( NULL == ppv )
 309         return E_INVALIDARG;
 310
 311     if( IID_IUnknown == riid )
 312         *ppv = reinterpret_cast<LPVOID>(this);
 313     else if( IID_IOleObject == riid )
 314         *ppv = reinterpret_cast<LPVOID>(vlcOleObject);
 315     else if( IID_IOleControl == riid )
 316         *ppv = reinterpret_cast<LPVOID>(vlcOleControl);
 317     else if( IID_IOleWindow == riid )
 318         *ppv = reinterpret_cast<LPVOID>(vlcOleInPlaceObject);
 319     else if( IID_IOleInPlaceObject == riid )
 320         *ppv = reinterpret_cast<LPVOID>(vlcOleInPlaceObject);
 321     else if( IID_IOleInPlaceActiveObject == riid )
 322         *ppv = reinterpret_cast<LPVOID>(vlcOleInPlaceActiveObject);
 323     else if( IID_IPersist == riid )
 324         *ppv = reinterpret_cast<LPVOID>(vlcPersistStreamInit);
 325     else if( IID_IPersistStreamInit == riid )
 326         *ppv = reinterpret_cast<LPVOID>(vlcPersistStreamInit);
 327     else if( IID_IPersistStorage == riid )
 328         *ppv = reinterpret_cast<LPVOID>(vlcPersistStorage);
 329     else if( IID_IPersistPropertyBag == riid )
 330         *ppv = reinterpret_cast<LPVOID>(vlcPersistPropertyBag);
 331     else if( IID_IProvideClassInfo == riid )
 332         *ppv = reinterpret_cast<LPVOID>(vlcProvideClassInfo);
 333     else if( IID_IProvideClassInfo2 == riid )
 334         *ppv = reinterpret_cast<LPVOID>(vlcProvideClassInfo);
 335     else if( IID_IConnectionPointContainer == riid )
 336         *ppv = reinterpret_cast<LPVOID>(vlcConnectionPointContainer);
 337     else if( IID_IObjectSafety == riid )
 338         *ppv = reinterpret_cast<LPVOID>(vlcObjectSafety);
 339     else if( IID_IDispatch == riid )
 340         *ppv = (CLSID_VLCPlugin2 == getClassID()) ?
 341                 reinterpret_cast<LPVOID>(vlcControl2) :
 342                 reinterpret_cast<LPVOID>(vlcControl);
 343     else if( IID_IVLCControl == riid )
 344         *ppv = reinterpret_cast<LPVOID>(vlcControl);
 345     else if( IID_IVLCControl2 == riid )
 346         *ppv = reinterpret_cast<LPVOID>(vlcControl2);
 347     else if( IID_IViewObject == riid )
 348         *ppv = reinterpret_cast<LPVOID>(vlcViewObject);
 349     else if( IID_IViewObject2 == riid )
 350         *ppv = reinterpret_cast<LPVOID>(vlcViewObject);
 351     else if( IID_IDataObject == riid )
 352         *ppv = reinterpret_cast<LPVOID>(vlcDataObject);
 353     else
 354     {
 355         *ppv = NULL;
 356         return E_NOINTERFACE;
 357     }
 358     ((LPUNKNOWN)*ppv)->AddRef();
 359     return NOERROR;
 360 };
 361
 362 STDMETHODIMP_(ULONG) VLCPlugin::AddRef(void)
 363 {
 364     return InterlockedIncrement((LONG *)&_i_ref);
 365 };
 366
 367 STDMETHODIMP_(ULONG) VLCPlugin::Release(void)
 368 {
 369     if( ! InterlockedDecrement((LONG *)&_i_ref) )
 370     {
 371         delete this;
 372         return 0;
 373     }
 374     return _i_ref;
 375 };
 376
 377 //////////////////////////////////////
 378
 379 /*
 380 ** we use a window to represent plugin viewport,
 381 ** whose geometry is limited by the clipping rectangle
 382 ** all drawing within this window must follow must
 383 ** follow coordinates system described in lprPosRect
 384 */
 385
 386 static void getViewportCoords(LPRECT lprPosRect, LPRECT lprClipRect)
 387 {
 388     RECT bounds;
 389     bounds.right  = lprPosRect->right-lprPosRect->left;
 390
 391     if( lprClipRect->left <= lprPosRect->left )
 392     {
 393         // left side is not clipped out
 394         bounds.left = 0;
 395
 396         if( lprClipRect->right >= lprPosRect->right )
 397         {
 398             // right side is not clipped out, no change
 399         }
 400         else if( lprClipRect->right >= lprPosRect->left )
 401         {
 402             // right side is clipped out
 403             lprPosRect->right = lprClipRect->right;
 404         }
 405         else
 406         {
 407             // outside of clipping rectange, not visible
 408             lprPosRect->right = lprPosRect->left;
 409         }
 410     }
 411     else
 412     {
 413         // left side is clipped out
 414         bounds.left = lprPosRect->left-lprClipRect->left;
 415         bounds.right += bounds.left;
 416
 417         lprPosRect->left = lprClipRect->left;
 418         if( lprClipRect->right >= lprPosRect->right )
 419         {
 420             // right side is not clipped out
 421         }
 422         else
 423         {
 424             // right side is clipped out
 425             lprPosRect->right = lprClipRect->right;
 426         }
 427     }
 428
 429     bounds.bottom = lprPosRect->bottom-lprPosRect->top;
 430
 431     if( lprClipRect->top <= lprPosRect->top )
 432     {
 433         // top side is not clipped out
 434         bounds.top = 0;
 435
 436         if( lprClipRect->bottom >= lprPosRect->bottom )
 437         {
 438             // bottom side is not clipped out, no change
 439         }
 440         else if( lprClipRect->bottom >= lprPosRect->top )
 441         {
 442             // bottom side is clipped out
 443             lprPosRect->bottom = lprClipRect->bottom;
 444         }
 445         else
 446         {
 447             // outside of clipping rectange, not visible
 448             lprPosRect->right = lprPosRect->left;
 449         }
 450     }
 451     else
 452     {
 453         bounds.top = lprPosRect->top-lprClipRect->top;
 454         bounds.bottom += bounds.top;
 455
 456         lprPosRect->top = lprClipRect->top;
 457         if( lprClipRect->bottom >= lprPosRect->bottom )
 458         {
 459             // bottom side is not clipped out
 460         }
 461         else
 462         {
 463             // bottom side is clipped out
 464             lprPosRect->bottom = lprClipRect->bottom;
 465         }
 466     }
 467     *lprClipRect = *lprPosRect;
 468     *lprPosRect  = bounds;
 469 };
 470
 471 HRESULT VLCPlugin::onInit(void)
 472 {
 473     if( NULL == _p_libvlc )
 474     {
 475         // initialize persistable properties
 476         _b_autoplay = TRUE;
 477         _b_autoloop = FALSE;
 478         _bstr_baseurl = NULL;
 479         _bstr_mrl = NULL;
 480         _b_visible = TRUE;
 481         _b_mute = FALSE;
 482         _i_volume = 50;
 483         _i_time   = 0;
 484         // set default/preferred size (320x240) pixels in HIMETRIC
 485         HDC hDC = CreateDevDC(NULL);
 486         _extent.cx = 320;
 487         _extent.cy = 240;
 488         HimetricFromDP(hDC, (LPPOINT)&_extent, 1);
 489         DeleteDC(hDC);
 490
 491         return S_OK;
 492     }
 493     return CO_E_ALREADYINITIALIZED;
 494 };
 495
 496 HRESULT VLCPlugin::onLoad(void)
 497 {
 498     if( SysStringLen(_bstr_baseurl) == 0 )
 499     {
 500         /*
 501         ** try to retreive the base URL using the client site moniker, which for Internet Explorer
 502         ** is the URL of the page the plugin is embedded into.
 503         */
 504         LPOLECLIENTSITE pClientSite;
 505         if( SUCCEEDED(vlcOleObject->GetClientSite(&pClientSite)) && (NULL != pClientSite) )
 506         {
 507             IBindCtx *pBC = 0;
 508             if( SUCCEEDED(CreateBindCtx(0, &pBC)) )
 509             {
 510                 LPMONIKER pContMoniker = NULL;
 511                 if( SUCCEEDED(pClientSite->GetMoniker(OLEGETMONIKER_ONLYIFTHERE,
 512                                 OLEWHICHMK_CONTAINER, &pContMoniker)) )
 513                 {
 514                     LPOLESTR base_url;
 515                     if( SUCCEEDED(pContMoniker->GetDisplayName(pBC, NULL, &base_url)) )
 516                     {
 517                         /*
 518                         ** check that the moniker name is a URL
 519                         */
 520                         if( UrlIsW(base_url, URLIS_URL) )
 521                         {
 522                             /* copy base URL */
 523                             _bstr_baseurl = SysAllocString(base_url);
 524                         }
 525                         CoTaskMemFree(base_url);
 526                     }
 527                 }
 528             }
 529         }
 530     }
 531     setDirty(FALSE);
 532     return S_OK;
 533 };
 534
 535 HRESULT VLCPlugin::getVLCObject(int* i_vlc)
 536 {
 537     libvlc_instance_t *p_libvlc;
 538     HRESULT result = getVLC(&p_libvlc);
 539     if( SUCCEEDED(result) )
 540     {
 541         *i_vlc = libvlc_get_vlc_id(p_libvlc);
 542     }
 543     else
 544     {
 545         *i_vlc = 0;
 546     }
 547     return result;
 548 }
 549
 550 HRESULT VLCPlugin::getVLC(libvlc_instance_t** pp_libvlc)
 551 {
 552     if( ! isRunning() )
 553     {
 554         /*
 555         ** default initialization options
 556         */
 557         char *ppsz_argv[32] = { "vlc" };
 558         int   ppsz_argc = 1;
 559
 560         HKEY h_key;
 561         DWORD i_type, i_data = MAX_PATH + 1;
 562         char p_data[MAX_PATH + 1];
 563         if( RegOpenKeyEx( HKEY_LOCAL_MACHINE, "Software\\VideoLAN\\VLC",
 564                           0, KEY_READ, &h_key ) == ERROR_SUCCESS )
 565         {
 566              if( RegQueryValueEx( h_key, "InstallDir", 0, &i_type,
 567                                   (LPBYTE)p_data, &i_data ) == ERROR_SUCCESS )
 568              {
 569                  if( i_type == REG_SZ )
 570                  {
 571                      strcat( p_data, "\\vlc" );
 572                      ppsz_argv[0] = p_data;
 573                  }
 574              }
 575              RegCloseKey( h_key );
 576         }
 577
 578 #if 0
 579         ppsz_argv[0] = "C:\\cygwin\\home\\damienf\\vlc-trunk\\vlc";
 580 #endif
 581
 582         // make sure plugin isn't affected with VLC single instance mode
 583         ppsz_argv[ppsz_argc++] = "--no-one-instance";
 584
 585         /* common settings */
 586         ppsz_argv[ppsz_argc++] = "-vv";
 587         ppsz_argv[ppsz_argc++] = "--no-stats";
 588         ppsz_argv[ppsz_argc++] = "--no-media-library";
 589         ppsz_argv[ppsz_argc++] = "--intf";
 590         ppsz_argv[ppsz_argc++] = "dummy";
 591
 592         // loop mode is a configuration option only
 593         if( _b_autoloop )
 594             ppsz_argv[ppsz_argc++] = "--loop";
 595
 596         // initial volume setting
 597         char volBuffer[16];
 598         ppsz_argv[ppsz_argc++] = "--volume";
 599         if( _b_mute )
 600         {
 601            ppsz_argv[ppsz_argc++] = "0";
 602         }
 603         else
 604         {
 605             snprintf(volBuffer, sizeof(volBuffer), "%d", _i_volume);
 606             ppsz_argv[ppsz_argc++] = volBuffer;
 607         }
 608
 609         if( IsDebuggerPresent() )
 610         {
 611             /*
 612             ** VLC default threading mechanism is designed to be as compatible
 613             ** with POSIX as possible. However when debugged on win32, threads
 614             ** lose signals and eventually VLC get stuck during initialization.
 615             ** threading support can be configured to be more debugging friendly
 616             ** but it will be less compatible with POSIX.
 617             ** This is done by initializing with the following options:
 618             */
 619             ppsz_argv[ppsz_argc++] = "--fast-mutex";
 620             ppsz_argv[ppsz_argc++] = "--win9x-cv-method=1";
 621         }
 622
 623         _p_libvlc = libvlc_new(ppsz_argc, ppsz_argv, NULL);
 624         if( NULL == _p_libvlc )
 625         {
 626             *pp_libvlc = NULL;
 627             return E_FAIL;
 628         }
 629
 630         if( SysStringLen(_bstr_mrl) > 0 )
 631         {
 632             char *psz_mrl = NULL;
 633
 634             if( SysStringLen(_bstr_baseurl) > 0 )
 635             {
 636                 DWORD len = INTERNET_MAX_URL_LENGTH;
 637                 LPOLESTR abs_url = (LPOLESTR)CoTaskMemAlloc(sizeof(OLECHAR)*len);
 638                 if( NULL != abs_url )
 639                 {
 640                     /*
 641                     ** if the MRL a relative URL, we should end up with an absolute URL
 642                     */
 643                     if( SUCCEEDED(UrlCombineW(_bstr_baseurl, _bstr_mrl, abs_url, &len,
 644                                     URL_ESCAPE_UNSAFE|URL_PLUGGABLE_PROTOCOL)) )
 645                     {
 646                         psz_mrl = CStrFromBSTR(CP_UTF8, abs_url);
 647                     }
 648                     else
 649                     {
 650                         psz_mrl = CStrFromBSTR(CP_UTF8, _bstr_mrl);
 651                     }
 652                     CoTaskMemFree(abs_url);
 653                 }
 654             }
 655             else
 656             {
 657                 /*
 658                 ** baseURL is empty, assume MRL is absolute
 659                 */
 660                 psz_mrl = CStrFromBSTR(CP_UTF8, _bstr_mrl);
 661             }
 662             if( NULL != psz_mrl )
 663             {
 664                 const char *options[1];
 665                 int i_options = 0;
 666
 667                 char timeBuffer[32];
 668                 if( _i_time )
 669                 {
 670                     snprintf(timeBuffer, sizeof(timeBuffer), ":start-time=%d", _i_time);
 671                     options[i_options++] = timeBuffer;
 672                 }
 673                 // add default target to playlist
 674                 libvlc_playlist_add_extended(_p_libvlc, psz_mrl, NULL, i_options, options, NULL);
 675                 CoTaskMemFree(psz_mrl);
 676             }
 677         }
 678     }
 679     *pp_libvlc = _p_libvlc;
 680     return S_OK;
 681 };
 682
 683 HRESULT VLCPlugin::onAmbientChanged(LPUNKNOWN pContainer, DISPID dispID)
 684 {
 685     VARIANT v;
 686     switch( dispID )
 687     {
 688         case DISPID_AMBIENT_BACKCOLOR:
 689             break;
 690         case DISPID_AMBIENT_DISPLAYNAME:
 691             break;
 692         case DISPID_AMBIENT_FONT:
 693             break;
 694         case DISPID_AMBIENT_FORECOLOR:
 695             break;
 696         case DISPID_AMBIENT_LOCALEID:
 697             break;
 698         case DISPID_AMBIENT_MESSAGEREFLECT:
 699             break;
 700         case DISPID_AMBIENT_SCALEUNITS:
 701             break;
 702         case DISPID_AMBIENT_TEXTALIGN:
 703             break;
 704         case DISPID_AMBIENT_USERMODE:
 705             VariantInit(&v);
 706             V_VT(&v) = VT_BOOL;
 707             if( SUCCEEDED(GetObjectProperty(pContainer, dispID, v)) )
 708             {
 709                 setUserMode(V_BOOL(&v) != VARIANT_FALSE);
 710             }
 711             break;
 712         case DISPID_AMBIENT_UIDEAD:
 713             break;
 714         case DISPID_AMBIENT_SHOWGRABHANDLES:
 715             break;
 716         case DISPID_AMBIENT_SHOWHATCHING:
 717             break;
 718         case DISPID_AMBIENT_DISPLAYASDEFAULT:
 719             break;
 720         case DISPID_AMBIENT_SUPPORTSMNEMONICS:
 721             break;
 722         case DISPID_AMBIENT_AUTOCLIP:
 723             break;
 724         case DISPID_AMBIENT_APPEARANCE:
 725             break;
 726         case DISPID_AMBIENT_CODEPAGE:
 727             VariantInit(&v);
 728             V_VT(&v) = VT_I4;
 729             if( SUCCEEDED(GetObjectProperty(pContainer, dispID, v)) )
 730             {
 731                 setCodePage(V_I4(&v));
 732             }
 733             break;
 734         case DISPID_AMBIENT_PALETTE:
 735             break;
 736         case DISPID_AMBIENT_CHARSET:
 737             break;
 738         case DISPID_AMBIENT_RIGHTTOLEFT:
 739             break;
 740         case DISPID_AMBIENT_TOPTOBOTTOM:
 741             break;
 742         case DISPID_UNKNOWN:
 743             /*
 744             ** multiple property change, look up the ones we are interested in
 745             */
 746             VariantInit(&v);
 747             V_VT(&v) = VT_BOOL;
 748             if( SUCCEEDED(GetObjectProperty(pContainer, DISPID_AMBIENT_USERMODE, v)) )
 749             {
 750                 setUserMode(V_BOOL(&v) != VARIANT_FALSE);
 751             }
 752             VariantInit(&v);
 753             V_VT(&v) = VT_I4;
 754             if( SUCCEEDED(GetObjectProperty(pContainer, DISPID_AMBIENT_CODEPAGE, v)) )
 755             {
 756                 setCodePage(V_I4(&v));
 757             }
 758             break;
 759     }
 760     return S_OK;
 761 };
 762
 763 HRESULT VLCPlugin::onClose(DWORD dwSaveOption)
 764 {
 765     if( isInPlaceActive() )
 766     {
 767         onInPlaceDeactivate();
 768     }
 769     if( isRunning() )
 770     {
 771         libvlc_instance_t* p_libvlc = _p_libvlc;
 772
 773         _p_libvlc = NULL;
 774         vlcDataObject->onClose();
 775
 776         libvlc_destroy(p_libvlc, NULL );
 777     }
 778     return S_OK;
 779 };
 780
 781 BOOL VLCPlugin::isInPlaceActive(void)
 782 {
 783     return (NULL != _inplacewnd);
 784 };
 785
 786 HRESULT VLCPlugin::onActivateInPlace(LPMSG lpMesg, HWND hwndParent, LPCRECT lprcPosRect, LPCRECT lprcClipRect)
 787 {
 788     RECT posRect = *lprcPosRect;
 789     RECT clipRect = *lprcClipRect;
 790
 791     /*
 792     ** record keeping of control geometry within container
 793     */
 794     _posRect = posRect;
 795
 796     /*
 797     ** convert posRect & clipRect to match control viewport coordinates
 798     */
 799     getViewportCoords(&posRect, &clipRect);
 800
 801     /*
 802     ** Create a window for in place activated control.
 803     ** the window geometry matches the control viewport
 804     ** within container so that embedded video is always
 805     ** properly clipped.
 806     */
 807     _inplacewnd = CreateWindow(_p_class->getInPlaceWndClassName(),
 808             "VLC Plugin In-Place Window",
 809             WS_CHILD|WS_CLIPCHILDREN|WS_CLIPSIBLINGS,
 810             clipRect.left,
 811             clipRect.top,
 812             clipRect.right-clipRect.left,
 813             clipRect.bottom-clipRect.top,
 814             hwndParent,
 815             0,
 816             _p_class->getHInstance(),
 817             NULL
 818            );
 819
 820     if( NULL == _inplacewnd )
 821         return E_FAIL;
 822
 823     SetWindowLongPtr(_inplacewnd, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(this));
 824
 825     /*
 826     ** VLC embedded video automatically grows to cover client
 827     ** area of parent window.
 828     ** hence create a such a 'parent' window whose geometry
 829     ** is always correct relative to the viewport bounds
 830     */
 831     _videownd = CreateWindow(_p_class->getVideoWndClassName(),
 832             "VLC Plugin Video Window",
 833             WS_CHILD|WS_CLIPCHILDREN|WS_VISIBLE,
 834             posRect.left,
 835             posRect.top,
 836             posRect.right-posRect.left,
 837             posRect.bottom-posRect.top,
 838             _inplacewnd,
 839             0,
 840             _p_class->getHInstance(),
 841             NULL
 842            );
 843
 844     if( NULL == _videownd )
 845     {
 846         DestroyWindow(_inplacewnd);
 847         return E_FAIL;
 848     }
 849
 850     SetWindowLongPtr(_videownd, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(this));
 851
 852     if( _b_usermode )
 853     {
 854         /* will run vlc if not done already */
 855         libvlc_instance_t* p_libvlc;
 856         HRESULT result = getVLC(&p_libvlc);
 857         if( FAILED(result) )
 858             return result;
 859
 860         /* set internal video width and height */
 861         libvlc_video_set_size(p_libvlc,
 862             posRect.right-posRect.left,
 863             posRect.bottom-posRect.top,
 864             NULL );
 865
 866         /* set internal video parent window */
 867         libvlc_video_set_parent(p_libvlc,
 868             reinterpret_cast<libvlc_drawable_t>(_videownd), NULL);
 869
 870         if( _b_autoplay & (libvlc_playlist_items_count(p_libvlc, NULL) > 0) )
 871         {
 872             libvlc_playlist_play(p_libvlc, 0, 0, NULL, NULL);
 873             fireOnPlayEvent();
 874         }
 875     }
 876
 877     if( isVisible() )
 878         ShowWindow(_inplacewnd, SW_SHOW);
 879
 880     return S_OK;
 881 };
 882
 883 HRESULT VLCPlugin::onInPlaceDeactivate(void)
 884 {
 885     if( isRunning() )
 886     {
 887         libvlc_playlist_stop(_p_libvlc, NULL);
 888         fireOnStopEvent();
 889     }
 890
 891     DestroyWindow(_videownd);
 892     _videownd = NULL;
 893     DestroyWindow(_inplacewnd);
 894     _inplacewnd = NULL;
 895
 896     return S_OK;
 897 };
 898
 899 void VLCPlugin::setVisible(BOOL fVisible)
 900 {
 901     if( fVisible != _b_visible )
 902     {
 903         _b_visible = fVisible;
 904         if( isInPlaceActive() )
 905         {
 906             ShowWindow(_inplacewnd, fVisible ? SW_SHOW : SW_HIDE);
 907             if( fVisible )
 908                 InvalidateRect(_videownd, NULL, TRUE);
 909         }
 910         setDirty(TRUE);
 911         firePropChangedEvent(DISPID_Visible);
 912     }
 913 };
 914
 915 void VLCPlugin::setVolume(int volume)
 916 {
 917     if( volume < 0 )
 918         volume = 0;
 919     else if( volume > 200 )
 920         volume = 200;
 921
 922     if( volume != _i_volume )
 923     {
 924         _i_volume = volume;
 925         if( isRunning() )
 926         {
 927             libvlc_audio_set_volume(_p_libvlc, _i_volume, NULL);
 928         }
 929         setDirty(TRUE);
 930     }
 931 };
 932
 933 void VLCPlugin::setTime(int seconds)
 934 {
 935     if( seconds < 0 )
 936         seconds = 0;
 937
 938     if( seconds != _i_time )
 939     {
 940         setStartTime(_i_time);
 941         if( isRunning() )
 942         {
 943             libvlc_input_t *p_input = libvlc_playlist_get_input(_p_libvlc, NULL);
 944             if( NULL != p_input )
 945             {
 946                 libvlc_input_set_time(p_input, _i_time, NULL);
 947                 libvlc_input_free(p_input);
 948             }
 949         }
 950     }
 951 };
 952
 953 void VLCPlugin::setFocus(BOOL fFocus)
 954 {
 955     if( fFocus )
 956         SetActiveWindow(_inplacewnd);
 957 };
 958
 959 BOOL VLCPlugin::hasFocus(void)
 960 {
 961     return GetActiveWindow() == _inplacewnd;
 962 };
 963
 964 void VLCPlugin::onDraw(DVTARGETDEVICE * ptd, HDC hicTargetDev,
 965         HDC hdcDraw, LPCRECTL lprcBounds, LPCRECTL lprcWBounds)
 966 {
 967     if( isVisible() )
 968     {
 969         long width = lprcBounds->right-lprcBounds->left;
 970         long height = lprcBounds->bottom-lprcBounds->top;
 971
 972         RECT bounds = { lprcBounds->left, lprcBounds->top, lprcBounds->right, lprcBounds->bottom };
 973         FillRect(hdcDraw, &bounds, (HBRUSH)GetStockObject(WHITE_BRUSH));
 974
 975         LPPICTURE pict = getPicture();
 976         if( NULL != pict )
 977         {
 978             OLE_XSIZE_HIMETRIC picWidth;
 979             OLE_YSIZE_HIMETRIC picHeight;
 980
 981             pict->get_Width(&picWidth);
 982             pict->get_Height(&picHeight);
 983
 984             SIZEL picSize = { picWidth, picHeight };
 985
 986             if( NULL != hicTargetDev )
 987             {
 988                 DPFromHimetric(hicTargetDev, (LPPOINT)&picSize, 1);
 989             }
 990             else if( NULL != (hicTargetDev = CreateDevDC(ptd)) )
 991             {
 992                 DPFromHimetric(hicTargetDev, (LPPOINT)&picSize, 1);
 993                 DeleteDC(hicTargetDev);
 994             }
 995
 996             if( picSize.cx > width-4 )
 997                 picSize.cx = width-4;
 998             if( picSize.cy > height-4 )
 999                 picSize.cy = height-4;
1000
1001             LONG dstX = lprcBounds->left+(width-picSize.cx)/2;
1002             LONG dstY = lprcBounds->top+(height-picSize.cy)/2;
1003
1004             if( NULL != lprcWBounds )
1005             {
1006                 RECT wBounds = { lprcWBounds->left, lprcWBounds->top, lprcWBounds->right, lprcWBounds->bottom };
1007                 pict->Render(hdcDraw, dstX, dstY, picSize.cx, picSize.cy,
1008                         0L, picHeight, picWidth, -picHeight, &wBounds);
1009             }
1010             else
1011                 pict->Render(hdcDraw, dstX, dstY, picSize.cx, picSize.cy,
1012                         0L, picHeight, picWidth, -picHeight, NULL);
1013
1014             pict->Release();
1015         }
1016
1017         SelectObject(hdcDraw, GetStockObject(BLACK_BRUSH));
1018
1019         MoveToEx(hdcDraw, bounds.left, bounds.top, NULL);
1020         LineTo(hdcDraw, bounds.left+width-1, bounds.top);
1021         LineTo(hdcDraw, bounds.left+width-1, bounds.top+height-1);
1022         LineTo(hdcDraw, bounds.left, bounds.top+height-1);
1023         LineTo(hdcDraw, bounds.left, bounds.top);
1024     }
1025 };
1026
1027 void VLCPlugin::onPaint(HDC hdc, const RECT &bounds, const RECT &clipRect)
1028 {
1029     if( isVisible() )
1030     {
1031         /** if VLC is playing, it may not display any VIDEO content
1032         ** hence, draw control logo*/
1033         HDC hdcDraw = CreateCompatibleDC(hdc);
1034         if( NULL != hdcDraw )
1035         {
1036             SIZEL size = getExtent();
1037             DPFromHimetric(hdc, (LPPOINT)&size, 1);
1038             RECTL posRect = { 0, 0, size.cx, size.cy };
1039
1040             int width = bounds.right-bounds.left;
1041             int height = bounds.bottom-bounds.top;
1042
1043             HBITMAP hBitmap = CreateCompatibleBitmap(hdc, width, height);
1044             if( NULL != hBitmap )
1045             {
1046                 HBITMAP oldBmp = (HBITMAP)SelectObject(hdcDraw, hBitmap);
1047
1048                 if( (size.cx != width) || (size.cy != height) )
1049                 {
1050                     // needs to scale canvas
1051                     SetMapMode(hdcDraw, MM_ANISOTROPIC);
1052                     SetWindowExtEx(hdcDraw, size.cx, size.cy, NULL);
1053                     SetViewportExtEx(hdcDraw, width, height, NULL);
1054                 }
1055
1056                 onDraw(NULL, hdc, hdcDraw, &posRect, NULL);
1057
1058                 SetMapMode(hdcDraw, MM_TEXT);
1059                 BitBlt(hdc, bounds.left, bounds.top,
1060                         width, height,
1061                         hdcDraw, 0, 0,
1062                         SRCCOPY);
1063
1064                 SelectObject(hdcDraw, oldBmp);
1065                 DeleteObject(hBitmap);
1066             }
1067             DeleteDC(hdcDraw);
1068         }
1069     }
1070 };
1071
1072 void VLCPlugin::onPositionChange(LPCRECT lprcPosRect, LPCRECT lprcClipRect)
1073 {
1074     RECT clipRect = *lprcClipRect;
1075     RECT posRect  = *lprcPosRect;
1076
1077     //RedrawWindow(GetParent(_inplacewnd), &_posRect, NULL, RDW_INVALIDATE|RDW_ERASE|RDW_ALLCHILDREN);
1078
1079     /*
1080     ** record keeping of control geometry within container
1081     */
1082     _posRect = posRect;
1083
1084     /*
1085     ** convert posRect & clipRect to match control viewport coordinates
1086     */
1087     getViewportCoords(&posRect, &clipRect);
1088
1089     /*
1090     ** change in-place window geometry to match clipping region
1091     */
1092     SetWindowPos(_inplacewnd, NULL,
1093             clipRect.left,
1094             clipRect.top,
1095             clipRect.right-clipRect.left,
1096             clipRect.bottom-clipRect.top,
1097             SWP_NOACTIVATE|
1098             SWP_NOCOPYBITS|
1099             SWP_NOZORDER|
1100             SWP_NOOWNERZORDER );
1101
1102     /*
1103     ** change video window geometry to match object bounds within clipping region
1104     */
1105     SetWindowPos(_videownd, NULL,
1106             posRect.left,
1107             posRect.top,
1108             posRect.right-posRect.left,
1109             posRect.bottom-posRect.top,
1110             SWP_NOACTIVATE|
1111             SWP_NOCOPYBITS|
1112             SWP_NOZORDER|
1113             SWP_NOOWNERZORDER );
1114
1115     //RedrawWindow(_videownd, &posRect, NULL, RDW_INVALIDATE|RDW_ERASE|RDW_ALLCHILDREN);
1116     if( isRunning() )
1117     {
1118         libvlc_video_set_size(_p_libvlc,
1119             posRect.right-posRect.left,
1120             posRect.bottom-posRect.top,
1121             NULL );
1122     }
1123 };
1124
1125 void VLCPlugin::freezeEvents(BOOL freeze)
1126 {
1127     vlcConnectionPointContainer->freezeEvents(freeze);
1128 };
1129
1130 void VLCPlugin::firePropChangedEvent(DISPID dispid)
1131 {
1132     vlcConnectionPointContainer->firePropChangedEvent(dispid);
1133 };
1134
1135 void VLCPlugin::fireOnPlayEvent(void)
1136 {
1137     DISPPARAMS dispparamsNoArgs = {NULL, NULL, 0, 0};
1138     vlcConnectionPointContainer->fireEvent(DISPID_PlayEvent, &dispparamsNoArgs);
1139 };
1140
1141 void VLCPlugin::fireOnPauseEvent(void)
1142 {
1143     DISPPARAMS dispparamsNoArgs = {NULL, NULL, 0, 0};
1144     vlcConnectionPointContainer->fireEvent(DISPID_PauseEvent, &dispparamsNoArgs);
1145 };
1146
1147 void VLCPlugin::fireOnStopEvent(void)
1148 {
1149     DISPPARAMS dispparamsNoArgs = {NULL, NULL, 0, 0};
1150     vlcConnectionPointContainer->fireEvent(DISPID_StopEvent, &dispparamsNoArgs);
1151 };
1152