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

   1 /*****************************************************************************
   2  * plugin.cpp: ActiveX control for VLC
   3  *****************************************************************************
   4  * Copyright (C) 2005 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 "viewobject.h"
  37 #include "dataobject.h"
  38
  39 #include "utils.h"
  40
  41 #include <string.h>
  42 #include <winreg.h>
  43 #include <winuser.h>
  44 #include <servprov.h>
  45 #include <shlwapi.h>
  46 #include <wininet.h>
  47
  48 using namespace std;
  49
  50 ////////////////////////////////////////////////////////////////////////
  51 //class factory
  52
  53 // {E23FE9C6-778E-49d4-B537-38FCDE4887D8}
  54 //const GUID CLSID_VLCPlugin =
  55 //    { 0xe23fe9c6, 0x778e, 0x49d4, { 0xb5, 0x37, 0x38, 0xfc, 0xde, 0x48, 0x87, 0xd8 } };
  56
  57 static LRESULT CALLBACK VLCInPlaceClassWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
  58     switch( uMsg )
  59     {
  60         case WM_ERASEBKGND:
  61             return 1L;
  62
  63         case WM_PAINT:
  64             PAINTSTRUCT ps;
  65             if( GetUpdateRect(hWnd, NULL, FALSE) )
  66             {
  67                 BeginPaint(hWnd, &ps);
  68                 EndPaint(hWnd, &ps);
  69             }
  70             return 0L;
  71
  72         default:
  73             return DefWindowProc(hWnd, uMsg, wParam, lParam);
  74     }
  75 };
  76
  77 static LRESULT CALLBACK VLCVideoClassWndProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
  78     VLCPlugin *p_instance = reinterpret_cast<VLCPlugin *>(GetWindowLongPtr(hWnd, GWLP_USERDATA));
  79
  80     switch( uMsg )
  81     {
  82         case WM_ERASEBKGND:
  83             return 1L;
  84
  85         case WM_PAINT:
  86             PAINTSTRUCT ps;
  87             RECT pr;
  88             if( GetUpdateRect(hWnd, &pr, FALSE) )
  89             {
  90                 RECT bounds;
  91                 GetClientRect(hWnd, &bounds);
  92                 BeginPaint(hWnd, &ps);
  93                 p_instance->onPaint(ps.hdc, bounds, pr);
  94                 EndPaint(hWnd, &ps);
  95             }
  96             return 0L;
  97
  98         default:
  99             return DefWindowProc(hWnd, uMsg, wParam, lParam);
 100     }
 101 };
 102
 103 VLCPluginClass::VLCPluginClass(LONG *p_class_ref, HINSTANCE hInstance) :
 104     _p_class_ref(p_class_ref),
 105     _hinstance(hInstance),
 106     _inplace_picture(NULL)
 107 {
 108     WNDCLASS wClass;
 109
 110     if( ! GetClassInfo(hInstance, getInPlaceWndClassName(), &wClass) )
 111     {
 112         wClass.style          = CS_NOCLOSE|CS_DBLCLKS;
 113         wClass.lpfnWndProc    = VLCInPlaceClassWndProc;
 114         wClass.cbClsExtra     = 0;
 115         wClass.cbWndExtra     = 0;
 116         wClass.hInstance      = hInstance;
 117         wClass.hIcon          = NULL;
 118         wClass.hCursor        = LoadCursor(NULL, IDC_ARROW);
 119         wClass.hbrBackground  = NULL;
 120         wClass.lpszMenuName   = NULL;
 121         wClass.lpszClassName  = getInPlaceWndClassName();
 122
 123         _inplace_wndclass_atom = RegisterClass(&wClass);
 124     }
 125     else
 126     {
 127         _inplace_wndclass_atom = 0;
 128     }
 129
 130     if( ! GetClassInfo(hInstance, getVideoWndClassName(), &wClass) )
 131     {
 132         wClass.style          = CS_NOCLOSE;
 133         wClass.lpfnWndProc    = VLCVideoClassWndProc;
 134         wClass.cbClsExtra     = 0;
 135         wClass.cbWndExtra     = 0;
 136         wClass.hInstance      = hInstance;
 137         wClass.hIcon          = NULL;
 138         wClass.hCursor        = LoadCursor(NULL, IDC_ARROW);
 139         wClass.hbrBackground  = NULL;
 140         wClass.lpszMenuName   = NULL;
 141         wClass.lpszClassName  = getVideoWndClassName();
 142
 143         _video_wndclass_atom = RegisterClass(&wClass);
 144     }
 145     else
 146     {
 147         _video_wndclass_atom = 0;
 148     }
 149
 150     HBITMAP hbitmap = (HBITMAP)LoadImage(getHInstance(), TEXT("INPLACE-PICT"), IMAGE_BITMAP, 0, 0, LR_DEFAULTCOLOR);
 151     if( NULL != hbitmap )
 152     {
 153         PICTDESC pictDesc;
 154
 155         pictDesc.cbSizeofstruct = sizeof(PICTDESC);
 156         pictDesc.picType        = PICTYPE_BITMAP;
 157         pictDesc.bmp.hbitmap    = hbitmap;
 158         pictDesc.bmp.hpal       = NULL;
 159
 160         if( FAILED(OleCreatePictureIndirect(&pictDesc, IID_IPicture, TRUE, reinterpret_cast<LPVOID*>(&_inplace_picture))) )
 161             _inplace_picture = NULL;
 162     }
 163     AddRef();
 164 };
 165
 166 VLCPluginClass::~VLCPluginClass()
 167 {
 168     if( 0 != _inplace_wndclass_atom )
 169         UnregisterClass(MAKEINTATOM(_inplace_wndclass_atom), _hinstance);
 170
 171     if( 0 != _video_wndclass_atom )
 172         UnregisterClass(MAKEINTATOM(_video_wndclass_atom), _hinstance);
 173
 174     if( NULL != _inplace_picture )
 175         _inplace_picture->Release();
 176 };
 177
 178 STDMETHODIMP VLCPluginClass::QueryInterface(REFIID riid, void **ppv)
 179 {
 180     if( NULL == ppv )
 181         return E_INVALIDARG;
 182
 183     if( (IID_IUnknown == riid) || (IID_IClassFactory == riid) )
 184     {
 185         AddRef();
 186         *ppv = reinterpret_cast<LPVOID>(this);
 187
 188         return NOERROR;
 189     }
 190
 191     *ppv = NULL;
 192
 193     return E_NOINTERFACE;
 194 };
 195
 196 STDMETHODIMP_(ULONG) VLCPluginClass::AddRef(void)
 197 {
 198     return InterlockedIncrement(_p_class_ref);
 199 };
 200
 201 STDMETHODIMP_(ULONG) VLCPluginClass::Release(void)
 202 {
 203     ULONG refcount = InterlockedDecrement(_p_class_ref);
 204     if( 0 == refcount )
 205     {
 206         delete this;
 207         return 0;
 208     }
 209     return refcount;
 210 };
 211
 212 STDMETHODIMP VLCPluginClass::CreateInstance(LPUNKNOWN pUnkOuter, REFIID riid, void **ppv)
 213 {
 214     if( NULL == ppv )
 215         return E_POINTER;
 216
 217     *ppv = NULL;
 218
 219     if( (NULL != pUnkOuter) && (IID_IUnknown != riid) ) {
 220         return CLASS_E_NOAGGREGATION;
 221     }
 222
 223     VLCPlugin *plugin = new VLCPlugin(this, pUnkOuter);
 224     if( NULL != plugin )
 225     {
 226         HRESULT hr = plugin->QueryInterface(riid, ppv);
 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     _p_class(p_class),
 248     _i_ref(1UL),
 249     _i_codepage(CP_ACP),
 250     _b_usermode(TRUE),
 251     _bstr_mrl(NULL),
 252     _b_autoplay(TRUE),
 253     _b_autoloop(FALSE),
 254     _b_visible(TRUE),
 255     _b_mute(FALSE),
 256     _i_vlc(0)
 257 {
 258     p_class->AddRef();
 259
 260     vlcOleControl = new VLCOleControl(this);
 261     vlcOleInPlaceObject = new VLCOleInPlaceObject(this);
 262     vlcOleInPlaceActiveObject = new VLCOleInPlaceActiveObject(this);
 263     vlcPersistStorage = new VLCPersistStorage(this);
 264     vlcPersistStreamInit = new VLCPersistStreamInit(this);
 265     vlcPersistPropertyBag = new VLCPersistPropertyBag(this);
 266     vlcProvideClassInfo = new VLCProvideClassInfo(this);
 267     vlcConnectionPointContainer = new VLCConnectionPointContainer(this);
 268     vlcObjectSafety = new VLCObjectSafety(this);
 269     vlcControl = new VLCControl(this);
 270     vlcViewObject = new VLCViewObject(this);
 271     vlcDataObject = new VLCDataObject(this);
 272     vlcOleObject = new VLCOleObject(this);
 273
 274     // configure controlling IUnknown interface for implemented interfaces
 275     this->pUnkOuter = (NULL != pUnkOuter) ? pUnkOuter : dynamic_cast<LPUNKNOWN>(this);
 276
 277     // default picure
 278     _p_pict = p_class->getInPlacePict();
 279
 280     // set default/preferred size (320x240) pixels in HIMETRIC
 281     HDC hDC = CreateDevDC(NULL);
 282     _extent.cx = 320;
 283     _extent.cy = 240;
 284     HimetricFromDP(hDC, (LPPOINT)&_extent, 1);
 285     DeleteDC(hDC);
 286 };
 287
 288 VLCPlugin::~VLCPlugin()
 289 {
 290     delete vlcOleObject;
 291     delete vlcDataObject;
 292     delete vlcViewObject;
 293     delete vlcControl;
 294     delete vlcConnectionPointContainer;
 295     delete vlcProvideClassInfo;
 296     delete vlcPersistPropertyBag;
 297     delete vlcPersistStreamInit;
 298     delete vlcPersistStorage;
 299     delete vlcOleInPlaceActiveObject;
 300     delete vlcOleInPlaceObject;
 301     delete vlcObjectSafety;
 302
 303     delete vlcOleControl;
 304     if( _p_pict )
 305         _p_pict->Release();
 306
 307     SysFreeString(_bstr_mrl);
 308
 309     _p_class->Release();
 310 };
 311
 312 STDMETHODIMP VLCPlugin::QueryInterface(REFIID riid, void **ppv)
 313 {
 314     if( NULL == ppv )
 315         return E_INVALIDARG;
 316
 317     if( IID_IUnknown == riid )
 318         *ppv = reinterpret_cast<LPVOID>(this);
 319     else if( IID_IOleObject == riid )
 320         *ppv = reinterpret_cast<LPVOID>(vlcOleObject);
 321     else if( IID_IOleControl == riid )
 322         *ppv = reinterpret_cast<LPVOID>(vlcOleControl);
 323     else if( IID_IOleWindow == riid )
 324         *ppv = reinterpret_cast<LPVOID>(vlcOleInPlaceObject);
 325     else if( IID_IOleInPlaceObject == riid )
 326         *ppv = reinterpret_cast<LPVOID>(vlcOleInPlaceObject);
 327     else if( IID_IOleInPlaceActiveObject == riid )
 328         *ppv = reinterpret_cast<LPVOID>(vlcOleInPlaceActiveObject);
 329     else if( IID_IPersist == riid )
 330         *ppv = reinterpret_cast<LPVOID>(vlcPersistStreamInit);
 331     else if( IID_IPersistStreamInit == riid )
 332         *ppv = reinterpret_cast<LPVOID>(vlcPersistStreamInit);
 333     else if( IID_IPersistStorage == riid )
 334         *ppv = reinterpret_cast<LPVOID>(vlcPersistStorage);
 335     else if( IID_IPersistPropertyBag == riid )
 336         *ppv = reinterpret_cast<LPVOID>(vlcPersistPropertyBag);
 337     else if( IID_IProvideClassInfo == riid )
 338         *ppv = reinterpret_cast<LPVOID>(vlcProvideClassInfo);
 339     else if( IID_IProvideClassInfo2 == riid )
 340         *ppv = reinterpret_cast<LPVOID>(vlcProvideClassInfo);
 341     else if( IID_IConnectionPointContainer == riid )
 342         *ppv = reinterpret_cast<LPVOID>(vlcConnectionPointContainer);
 343     else if( IID_IObjectSafety == riid )
 344         *ppv = reinterpret_cast<LPVOID>(vlcObjectSafety);
 345     else if( IID_IDispatch == riid )
 346         *ppv = reinterpret_cast<LPVOID>(vlcControl);
 347     else if( IID_IVLCControl == riid )
 348         *ppv = reinterpret_cast<LPVOID>(vlcControl);
 349     else if( IID_IViewObject == riid )
 350         *ppv = reinterpret_cast<LPVOID>(vlcViewObject);
 351     else if( IID_IViewObject2 == riid )
 352         *ppv = reinterpret_cast<LPVOID>(vlcViewObject);
 353     else if( IID_IDataObject == riid )
 354         *ppv = reinterpret_cast<LPVOID>(vlcDataObject);
 355     else
 356     {
 357         *ppv = NULL;
 358         return E_NOINTERFACE;
 359     }
 360     ((LPUNKNOWN)*ppv)->AddRef();
 361     return NOERROR;
 362 };
 363
 364 STDMETHODIMP_(ULONG) VLCPlugin::AddRef(void)
 365 {
 366     return InterlockedIncrement((LONG *)&_i_ref);
 367 };
 368
 369 STDMETHODIMP_(ULONG) VLCPlugin::Release(void)
 370 {
 371     if( ! InterlockedDecrement((LONG *)&_i_ref) )
 372     {
 373         delete this;
 374         return 0;
 375     }
 376     return _i_ref;
 377 };
 378
 379 //////////////////////////////////////
 380
 381 /*
 382 ** we use a window to represent plugin viewport,
 383 ** whose geometry is limited by the clipping rectangle
 384 ** all drawing within this window must follow must
 385 ** follow coordinates system described in lprPosRect
 386 */
 387
 388 static void getViewportCoords(LPRECT lprPosRect, LPRECT lprClipRect)
 389 {
 390     RECT bounds;
 391     bounds.right  = lprPosRect->right-lprPosRect->left;
 392
 393     if( lprClipRect->left <= lprPosRect->left )
 394     {
 395         // left side is not clipped out
 396         bounds.left = 0;
 397
 398         if( lprClipRect->right >= lprPosRect->right )
 399         {
 400             // right side is not clipped out, no change
 401         }
 402         else if( lprClipRect->right >= lprPosRect->left )
 403         {
 404             // right side is clipped out
 405             lprPosRect->right = lprClipRect->right;
 406         }
 407         else
 408         {
 409             // outside of clipping rectange, not visible
 410             lprPosRect->right = lprPosRect->left;
 411         }
 412     }
 413     else
 414     {
 415         // left side is clipped out
 416         bounds.left = lprPosRect->left-lprClipRect->left;
 417         bounds.right += bounds.left;
 418
 419         lprPosRect->left = lprClipRect->left;
 420         if( lprClipRect->right >= lprPosRect->right )
 421         {
 422             // right side is not clipped out
 423         }
 424         else
 425         {
 426             // right side is clipped out
 427             lprPosRect->right = lprClipRect->right;
 428         }
 429     }
 430
 431     bounds.bottom = lprPosRect->bottom-lprPosRect->top;
 432
 433     if( lprClipRect->top <= lprPosRect->top )
 434     {
 435         // top side is not clipped out
 436         bounds.top = 0;
 437
 438         if( lprClipRect->bottom >= lprPosRect->bottom )
 439         {
 440             // bottom side is not clipped out, no change
 441         }
 442         else if( lprClipRect->bottom >= lprPosRect->top )
 443         {
 444             // bottom side is clipped out
 445             lprPosRect->bottom = lprClipRect->bottom;
 446         }
 447         else
 448         {
 449             // outside of clipping rectange, not visible
 450             lprPosRect->right = lprPosRect->left;
 451         }
 452     }
 453     else
 454     {
 455         bounds.top = lprPosRect->top-lprClipRect->top;
 456         bounds.bottom += bounds.top;
 457
 458         lprPosRect->top = lprClipRect->top;
 459         if( lprClipRect->bottom >= lprPosRect->bottom )
 460         {
 461             // bottom side is not clipped out
 462         }
 463         else
 464         {
 465             // bottom side is clipped out
 466             lprPosRect->bottom = lprClipRect->bottom;
 467         }
 468     }
 469     *lprClipRect = *lprPosRect;
 470     *lprPosRect  = bounds;
 471 };
 472
 473 HRESULT VLCPlugin::onInit(void)
 474 {
 475     if( 0 == _i_vlc )
 476     {
 477         _i_vlc = VLC_Create();
 478         if( _i_vlc < 0 )
 479         {
 480             _i_vlc = 0;
 481             return E_FAIL;
 482         }
 483
 484         /*
 485         ** default initialization options
 486         */
 487         char *ppsz_argv[10] = { "vlc", "-vv" };
 488         int   ppsz_argc = 2;
 489
 490         HKEY h_key;
 491         DWORD i_type, i_data = MAX_PATH + 1;
 492         char p_data[MAX_PATH + 1];
 493         if( RegOpenKeyEx( HKEY_LOCAL_MACHINE, "Software\\VideoLAN\\VLC",
 494                           0, KEY_READ, &h_key ) == ERROR_SUCCESS )
 495         {
 496              if( RegQueryValueEx( h_key, "InstallDir", 0, &i_type,
 497                                   (LPBYTE)p_data, &i_data ) == ERROR_SUCCESS )
 498              {
 499                  if( i_type == REG_SZ )
 500                  {
 501                      strcat( p_data, "\\vlc" );
 502                      ppsz_argv[0] = p_data;
 503                  }
 504              }
 505              RegCloseKey( h_key );
 506         }
 507
 508 #if 0
 509         ppsz_argv[0] = "C:\\cygwin\\home\\Damien_Fouilleul\\dev\\videolan\\vlc-trunk\\vlc";
 510 #endif
 511
 512         if( IsDebuggerPresent() )
 513         {
 514             /*
 515             ** VLC default threading mechanism is designed to be as compatible
 516             ** with POSIX as possible, however when debugged on win32, threads
 517             ** lose signals and eventually VLC get stuck during initialization.
 518             ** threading support can be configured to be more debugging friendly
 519             ** but it will be less compatible with POSIX.
 520             ** This is done by initializing with the following options
 521             */
 522             ppsz_argv[ppsz_argc++] = "--fast-mutex";
 523             ppsz_argv[ppsz_argc++] = "--win9x-cv-method=1";
 524         }
 525
 526         if( VLC_Init(_i_vlc, ppsz_argc, ppsz_argv) )
 527         {
 528             VLC_Destroy(_i_vlc);
 529             _i_vlc = 0;
 530             return E_FAIL;
 531         }
 532         return S_OK;
 533     }
 534     return CO_E_ALREADYINITIALIZED;
 535 };
 536
 537 HRESULT VLCPlugin::onLoad(void)
 538 {
 539     if( _b_mute )
 540         VLC_VolumeMute(_i_vlc);
 541
 542     if( SysStringLen(_bstr_mrl) > 0 )
 543     {
 544         /*
 545         ** try to combine MRL with client site moniker, which for Internet Explorer
 546         ** is the URL of the page the plugin is embedded into. Hence, if the MRL
 547         ** is a relative URL, we should end up with an absolute URL
 548         */
 549         IOleClientSite *pClientSite;
 550         if( SUCCEEDED(vlcOleObject->GetClientSite(&pClientSite)) && (NULL != pClientSite) )
 551         {
 552             IBindCtx *pBC = 0;
 553             if( SUCCEEDED(CreateBindCtx(0, &pBC)) )
 554             {
 555                 LPMONIKER pContMoniker = NULL;
 556                 if( SUCCEEDED(pClientSite->GetMoniker(OLEGETMONIKER_ONLYIFTHERE,
 557                                 OLEWHICHMK_CONTAINER, &pContMoniker)) )
 558                 {
 559                     LPOLESTR base_url;
 560                     if( SUCCEEDED(pContMoniker->GetDisplayName(pBC, NULL, &base_url)) )
 561                     {
 562                         /*
 563                         ** check that the moniker name is a URL
 564                         */
 565                         if( UrlIsW(base_url, URLIS_URL) )
 566                         {
 567                             DWORD len = INTERNET_MAX_URL_LENGTH;
 568                             LPOLESTR abs_url = (LPOLESTR)CoTaskMemAlloc(sizeof(OLECHAR)*len);
 569                             if( NULL != abs_url )
 570                             {
 571                                 if( SUCCEEDED(UrlCombineW(base_url, _bstr_mrl, abs_url, &len,
 572                                                 URL_ESCAPE_UNSAFE|URL_PLUGGABLE_PROTOCOL)) )
 573                                 {
 574                                     SysFreeString(_bstr_mrl);
 575                                     _bstr_mrl = SysAllocStringLen(abs_url, len);
 576                                 }
 577                                 CoTaskMemFree(abs_url);
 578                             }
 579                         }
 580                         CoTaskMemFree(base_url);
 581                     }
 582                     pContMoniker->Release();
 583                 }
 584                 pBC->Release();
 585             }
 586             pClientSite->Release();
 587         }
 588
 589         char *psz_mrl = CStrFromBSTR(CP_UTF8, _bstr_mrl);
 590         if( NULL != psz_mrl )
 591         {
 592             // add default target to playlist
 593             char *cOptions[1];
 594             int  cOptionsCount = 0;
 595
 596             if( _b_autoloop )
 597             {
 598                 cOptions[cOptionsCount++] = "loop";
 599             }
 600             VLC_AddTarget(_i_vlc, psz_mrl, (const char **)&cOptions, cOptionsCount, PLAYLIST_APPEND, PLAYLIST_END);
 601             CoTaskMemFree(psz_mrl);
 602         }
 603     }
 604     setDirty(FALSE);
 605     return S_OK;
 606 };
 607
 608 HRESULT VLCPlugin::onAmbientChanged(LPUNKNOWN pContainer, DISPID dispID)
 609 {
 610     VARIANT v;
 611     switch( dispID )
 612     {
 613         case DISPID_AMBIENT_BACKCOLOR:
 614             break;
 615         case DISPID_AMBIENT_DISPLAYNAME:
 616             break;
 617         case DISPID_AMBIENT_FONT:
 618             break;
 619         case DISPID_AMBIENT_FORECOLOR:
 620             break;
 621         case DISPID_AMBIENT_LOCALEID:
 622             break;
 623         case DISPID_AMBIENT_MESSAGEREFLECT:
 624             break;
 625         case DISPID_AMBIENT_SCALEUNITS:
 626             break;
 627         case DISPID_AMBIENT_TEXTALIGN:
 628             break;
 629         case DISPID_AMBIENT_USERMODE:
 630             VariantInit(&v);
 631             V_VT(&v) = VT_BOOL;
 632             if( SUCCEEDED(GetObjectProperty(pContainer, dispID, v)) )
 633             {
 634                 setUserMode(V_BOOL(&v) != VARIANT_FALSE);
 635             }
 636             break;
 637         case DISPID_AMBIENT_UIDEAD:
 638             break;
 639         case DISPID_AMBIENT_SHOWGRABHANDLES:
 640             break;
 641         case DISPID_AMBIENT_SHOWHATCHING:
 642             break;
 643         case DISPID_AMBIENT_DISPLAYASDEFAULT:
 644             break;
 645         case DISPID_AMBIENT_SUPPORTSMNEMONICS:
 646             break;
 647         case DISPID_AMBIENT_AUTOCLIP:
 648             break;
 649         case DISPID_AMBIENT_APPEARANCE:
 650             break;
 651         case DISPID_AMBIENT_CODEPAGE:
 652             VariantInit(&v);
 653             V_VT(&v) = VT_I4;
 654             if( SUCCEEDED(GetObjectProperty(pContainer, dispID, v)) )
 655             {
 656                 setCodePage(V_I4(&v));
 657             }
 658             break;
 659         case DISPID_AMBIENT_PALETTE:
 660             break;
 661         case DISPID_AMBIENT_CHARSET:
 662             break;
 663         case DISPID_AMBIENT_RIGHTTOLEFT:
 664             break;
 665         case DISPID_AMBIENT_TOPTOBOTTOM:
 666             break;
 667         case DISPID_UNKNOWN:
 668         /*
 669         ** multiple property change, look up the ones we are interested in
 670         */
 671             VariantInit(&v);
 672             V_VT(&v) = VT_BOOL;
 673             if( SUCCEEDED(GetObjectProperty(pContainer, DISPID_AMBIENT_USERMODE, v)) )
 674             {
 675                 setUserMode(V_BOOL(&v) != VARIANT_FALSE);
 676             }
 677             VariantInit(&v);
 678             V_VT(&v) = VT_I4;
 679             if( SUCCEEDED(GetObjectProperty(pContainer, DISPID_AMBIENT_CODEPAGE, v)) )
 680             {
 681                 setCodePage(V_I4(&v));
 682             }
 683             break;
 684     }
 685     return S_OK;
 686 };
 687
 688 HRESULT VLCPlugin::onClose(DWORD dwSaveOption)
 689 {
 690     if( _i_vlc )
 691     {
 692         int i_vlc = _i_vlc;
 693
 694         _i_vlc = 0;
 695         if( isInPlaceActive() )
 696         {
 697             onInPlaceDeactivate();
 698         }
 699         vlcDataObject->onClose();
 700
 701         VLC_CleanUp(i_vlc);
 702         VLC_Destroy(i_vlc);
 703     }
 704     return S_OK;
 705 };
 706
 707 BOOL VLCPlugin::isInPlaceActive(void)
 708 {
 709     return (NULL != _inplacewnd);
 710 };
 711
 712 HRESULT VLCPlugin::onActivateInPlace(LPMSG lpMesg, HWND hwndParent, LPCRECT lprcPosRect, LPCRECT lprcClipRect)
 713 {
 714     RECT posRect = *lprcPosRect;
 715     RECT clipRect = *lprcClipRect;
 716
 717     /*
 718     ** record keeping of control geometry within container
 719     */
 720     _posRect = posRect;
 721
 722     /*
 723     ** convert posRect & clipRect to match control viewport coordinates
 724     */
 725     getViewportCoords(&posRect, &clipRect);
 726
 727     /*
 728     ** Create a window for in place activated control.
 729     ** the window geometry matches the control viewport
 730     ** within container so that embedded video is always
 731     ** properly clipped.
 732     */
 733     _inplacewnd = CreateWindow(_p_class->getInPlaceWndClassName(),
 734             "VLC Plugin In-Place Window",
 735             WS_CHILD|WS_CLIPCHILDREN|WS_CLIPSIBLINGS,
 736             clipRect.left,
 737             clipRect.top,
 738             clipRect.right-clipRect.left,
 739             clipRect.bottom-clipRect.top,
 740             hwndParent,
 741             0,
 742             _p_class->getHInstance(),
 743             NULL
 744            );
 745
 746     if( NULL == _inplacewnd )
 747         return E_FAIL;
 748
 749     SetWindowLongPtr(_inplacewnd, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(this));
 750
 751     /*
 752     ** VLC embedded video automatically grows to cover client
 753     ** area of parent window.
 754     ** hence create a such a 'parent' window whose geometry
 755     ** is always correct relative to the viewport bounds
 756     */
 757     _videownd = CreateWindow(_p_class->getVideoWndClassName(),
 758             "VLC Plugin Video Window",
 759             WS_CHILD|WS_CLIPCHILDREN|WS_VISIBLE,
 760             posRect.left,
 761             posRect.top,
 762             posRect.right-posRect.left,
 763             posRect.bottom-posRect.top,
 764             _inplacewnd,
 765             0,
 766             _p_class->getHInstance(),
 767             NULL
 768            );
 769
 770     if( NULL == _videownd )
 771     {
 772         DestroyWindow(_inplacewnd);
 773         return E_FAIL;
 774     }
 775
 776     SetWindowLongPtr(_videownd, GWLP_USERDATA, reinterpret_cast<LONG_PTR>(this));
 777
 778     if( getVisible() )
 779         ShowWindow(_inplacewnd, SW_SHOWNORMAL);
 780
 781     /* set internal video width and height */
 782     vlc_value_t val;
 783     val.i_int = posRect.right-posRect.left;
 784     VLC_VariableSet(_i_vlc, "conf::width", val);
 785     val.i_int = posRect.bottom-posRect.top;
 786     VLC_VariableSet(_i_vlc, "conf::height", val);
 787
 788     /* set internal video parent window */
 789     /* horrible cast there */
 790     val.i_int = reinterpret_cast<int>(_videownd);
 791     VLC_VariableSet(_i_vlc, "drawable", val);
 792
 793     if( _b_usermode && _b_autoplay & (VLC_PlaylistNumberOfItems(_i_vlc) > 0) )
 794     {
 795         VLC_Play(_i_vlc);
 796         fireOnPlayEvent();
 797     }
 798     return S_OK;
 799 };
 800
 801 HRESULT VLCPlugin::onInPlaceDeactivate(void)
 802 {
 803     VLC_Stop(_i_vlc);
 804     fireOnStopEvent();
 805
 806     DestroyWindow(_videownd);
 807     _videownd = NULL;
 808     DestroyWindow(_inplacewnd);
 809     _inplacewnd = NULL;
 810
 811     return S_OK;
 812 };
 813
 814 void VLCPlugin::setVisible(BOOL fVisible)
 815 {
 816     _b_visible = fVisible;
 817     if( isInPlaceActive() )
 818         ShowWindow(_inplacewnd, fVisible ? SW_SHOWNORMAL : SW_HIDE);
 819     firePropChangedEvent(DISPID_Visible);
 820 };
 821
 822 void VLCPlugin::setFocus(BOOL fFocus)
 823 {
 824     if( fFocus )
 825         SetActiveWindow(_inplacewnd);
 826 };
 827
 828 BOOL VLCPlugin::hasFocus(void)
 829 {
 830     return GetActiveWindow() == _inplacewnd;
 831 };
 832
 833 void VLCPlugin::onDraw(DVTARGETDEVICE * ptd, HDC hicTargetDev,
 834         HDC hdcDraw, LPCRECTL lprcBounds, LPCRECTL lprcWBounds)
 835 {
 836     if( getVisible() )
 837     {
 838         long width = lprcBounds->right-lprcBounds->left;
 839         long height = lprcBounds->bottom-lprcBounds->top;
 840
 841         RECT bounds = { lprcBounds->left, lprcBounds->top, lprcBounds->right, lprcBounds->bottom };
 842         FillRect(hdcDraw, &bounds, (HBRUSH)GetStockObject(WHITE_BRUSH));
 843
 844         LPPICTURE pict = getPicture();
 845         if( NULL != pict )
 846         {
 847             OLE_XSIZE_HIMETRIC picWidth;
 848             OLE_YSIZE_HIMETRIC picHeight;
 849
 850             pict->get_Width(&picWidth);
 851             pict->get_Height(&picHeight);
 852
 853             SIZEL picSize = { picWidth, picHeight };
 854
 855             if( NULL != hicTargetDev )
 856             {
 857                 DPFromHimetric(hicTargetDev, (LPPOINT)&picSize, 1);
 858             }
 859             else if( NULL != (hicTargetDev = CreateDevDC(ptd)) )
 860             {
 861                 DPFromHimetric(hicTargetDev, (LPPOINT)&picSize, 1);
 862                 DeleteDC(hicTargetDev);
 863             }
 864
 865             if( picSize.cx > width-4 )
 866                 picSize.cx = width-4;
 867             if( picSize.cy > height-4 )
 868                 picSize.cy = height-4;
 869
 870             LONG dstX = lprcBounds->left+(width-picSize.cx)/2;
 871             LONG dstY = lprcBounds->top+(height-picSize.cy)/2;
 872
 873             if( NULL != lprcWBounds )
 874             {
 875                 RECT wBounds = { lprcWBounds->left, lprcWBounds->top, lprcWBounds->right, lprcWBounds->bottom };
 876                 pict->Render(hdcDraw, dstX, dstY, picSize.cx, picSize.cy,
 877                         0L, picHeight, picWidth, -picHeight, &wBounds);
 878             }
 879             else
 880                 pict->Render(hdcDraw, dstX, dstY, picSize.cx, picSize.cy,
 881                         0L, picHeight, picWidth, -picHeight, NULL);
 882
 883             pict->Release();
 884         }
 885
 886         SelectObject(hdcDraw, GetStockObject(BLACK_BRUSH));
 887
 888         MoveToEx(hdcDraw, bounds.left, bounds.top, NULL);
 889         LineTo(hdcDraw, bounds.left+width-1, bounds.top);
 890         LineTo(hdcDraw, bounds.left+width-1, bounds.top+height-1);
 891         LineTo(hdcDraw, bounds.left, bounds.top+height-1);
 892         LineTo(hdcDraw, bounds.left, bounds.top);
 893     }
 894 };
 895
 896 void VLCPlugin::onPaint(HDC hdc, const RECT &bounds, const RECT &clipRect)
 897 {
 898     if( getVisible() )
 899     {
 900         /** if VLC is playing, it may not display any VIDEO content
 901         ** hence, draw control logo*/
 902         HDC hdcDraw = CreateCompatibleDC(hdc);
 903         if( NULL != hdcDraw )
 904         {
 905             SIZEL size = getExtent();
 906             DPFromHimetric(hdc, (LPPOINT)&size, 1);
 907             RECTL posRect = { 0, 0, size.cx, size.cy };
 908
 909             int width = bounds.right-bounds.left;
 910             int height = bounds.bottom-bounds.top;
 911
 912             HBITMAP hBitmap = CreateCompatibleBitmap(hdc, width, height);
 913             if( NULL != hBitmap )
 914             {
 915                 HBITMAP oldBmp = (HBITMAP)SelectObject(hdcDraw, hBitmap);
 916
 917                 if( (size.cx != width) || (size.cy != height) )
 918                 {
 919                     // needs to scale canvas
 920                     SetMapMode(hdcDraw, MM_ANISOTROPIC);
 921                     SetWindowExtEx(hdcDraw, size.cx, size.cy, NULL);
 922                     SetViewportExtEx(hdcDraw, width, height, NULL);
 923                 }
 924
 925                 onDraw(NULL, hdc, hdcDraw, &posRect, NULL);
 926
 927                 SetMapMode(hdcDraw, MM_TEXT);
 928                 BitBlt(hdc, bounds.left, bounds.top,
 929                         width, height,
 930                         hdcDraw, 0, 0,
 931                         SRCCOPY);
 932
 933                 SelectObject(hdcDraw, oldBmp);
 934                 DeleteObject(hBitmap);
 935             }
 936             DeleteDC(hdcDraw);
 937         }
 938     }
 939 };
 940
 941 void VLCPlugin::onPositionChange(LPCRECT lprcPosRect, LPCRECT lprcClipRect)
 942 {
 943     RECT clipRect = *lprcClipRect;
 944     RECT posRect  = *lprcPosRect;
 945
 946     //RedrawWindow(GetParent(_inplacewnd), &_posRect, NULL, RDW_INVALIDATE|RDW_ERASE|RDW_ALLCHILDREN);
 947
 948     /*
 949     ** record keeping of control geometry within container
 950     */
 951     _posRect = posRect;
 952
 953     /*
 954     ** convert posRect & clipRect to match control viewport coordinates
 955     */
 956     getViewportCoords(&posRect, &clipRect);
 957
 958     /*
 959     ** change in-place window geometry to match clipping region
 960     */
 961     SetWindowPos(_inplacewnd, NULL,
 962             clipRect.left,
 963             clipRect.top,
 964             clipRect.right-clipRect.left,
 965             clipRect.bottom-clipRect.top,
 966             SWP_NOACTIVATE|
 967             SWP_NOCOPYBITS|
 968             SWP_NOZORDER|
 969             SWP_NOOWNERZORDER );
 970
 971     /*
 972     ** change video window geometry to match object bounds within clipping region
 973     */
 974     SetWindowPos(_videownd, NULL,
 975             posRect.left,
 976             posRect.top,
 977             posRect.right-posRect.left,
 978             posRect.bottom-posRect.top,
 979             SWP_NOACTIVATE|
 980             SWP_NOCOPYBITS|
 981             SWP_NOZORDER|
 982             SWP_NOOWNERZORDER );
 983
 984     //RedrawWindow(_videownd, &posRect, NULL, RDW_INVALIDATE|RDW_ERASE|RDW_ALLCHILDREN);
 985     vlc_value_t val;
 986     val.i_int = posRect.right-posRect.left;
 987     VLC_VariableSet(_i_vlc, "conf::width", val);
 988     val.i_int = posRect.bottom-posRect.top;
 989     VLC_VariableSet(_i_vlc, "conf::height", val);
 990 };
 991
 992 void VLCPlugin::freezeEvents(BOOL freeze)
 993 {
 994     vlcConnectionPointContainer->freezeEvents(freeze);
 995 };
 996
 997 void VLCPlugin::firePropChangedEvent(DISPID dispid)
 998 {
 999     vlcConnectionPointContainer->firePropChangedEvent(dispid);
1000 };
1001
1002 void VLCPlugin::fireOnPlayEvent(void)
1003 {
1004     DISPPARAMS dispparamsNoArgs = {NULL, NULL, 0, 0};
1005     vlcConnectionPointContainer->fireEvent(DISPID_PlayEvent, &dispparamsNoArgs);
1006 };
1007
1008 void VLCPlugin::fireOnPauseEvent(void)
1009 {
1010     DISPPARAMS dispparamsNoArgs = {NULL, NULL, 0, 0};
1011     vlcConnectionPointContainer->fireEvent(DISPID_PauseEvent, &dispparamsNoArgs);
1012 };
1013
1014 void VLCPlugin::fireOnStopEvent(void)
1015 {
1016     DISPPARAMS dispparamsNoArgs = {NULL, NULL, 0, 0};
1017     vlcConnectionPointContainer->fireEvent(DISPID_StopEvent, &dispparamsNoArgs);
1018 };
1019