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