git.sesse.net Git - vlc/blob - projects/mozilla/vlcplugin.cpp

   1 /*****************************************************************************
   2  * vlcplugin.cpp: a VLC plugin for Mozilla
   3  *****************************************************************************
   4  * Copyright (C) 2002-2005 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Samuel Hocevar <sam@zoy.org>
   8  *          Damien Fouilleul <damienf.fouilleul@laposte.net>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28 #include "config.h"
  29
  30 #ifdef HAVE_MOZILLA_CONFIG_H
  31 #   include <mozilla-config.h>
  32 #endif
  33
  34 #include "vlcplugin.h"
  35 #include "control/npovlc.h"
  36 #include "control/npolibvlc.h"
  37
  38 #include <ctype.h>
  39
  40 /*****************************************************************************
  41  * VlcPlugin constructor and destructor
  42  *****************************************************************************/
  43 VlcPlugin::VlcPlugin( NPP instance, uint16 mode ) :
  44     i_npmode(mode),
  45     b_stream(0),
  46     b_autoplay(1),
  47     i_control_height(45),
  48     psz_target(NULL),
  49     libvlc_instance(NULL),
  50     libvlc_log(NULL),
  51     p_scriptClass(NULL),
  52     p_browser(instance),
  53     psz_baseURL(NULL)
  54 #if XP_WIN
  55     ,pf_wndproc(NULL)
  56 #endif
  57 #if XP_UNIX
  58     ,i_width((unsigned)-1)
  59     ,i_height((unsigned)-1)
  60     ,i_last_position(0)
  61 #endif
  62 {
  63     memset(&npwindow, 0, sizeof(NPWindow));
  64 }
  65
  66 static bool boolValue(const char *value) {
  67     return ( !strcmp(value, "1") ||
  68              !strcasecmp(value, "true") ||
  69              !strcasecmp(value, "yes") );
  70 }
  71
  72 NPError VlcPlugin::init(int argc, char* const argn[], char* const argv[])
  73 {
  74     /* prepare VLC command line */
  75     char *ppsz_argv[32];
  76     int ppsz_argc = 0;
  77
  78     /* locate VLC module path */
  79 #ifdef XP_MACOSX
  80     ppsz_argv[ppsz_argc++] = "--plugin-path";
  81     ppsz_argv[ppsz_argc++] = "/Library/Internet Plug-Ins/VLC Plugin.plugin/"
  82                              "Contents/MacOS/modules";
  83 #elif defined(XP_WIN)
  84     HKEY h_key;
  85     DWORD i_type, i_data = MAX_PATH + 1;
  86     char p_data[MAX_PATH + 1];
  87     if( RegOpenKeyEx( HKEY_LOCAL_MACHINE, "Software\\VideoLAN\\VLC",
  88                       0, KEY_READ, &h_key ) == ERROR_SUCCESS )
  89     {
  90          if( RegQueryValueEx( h_key, "InstallDir", 0, &i_type,
  91                               (LPBYTE)p_data, &i_data ) == ERROR_SUCCESS )
  92          {
  93              if( i_type == REG_SZ )
  94              {
  95                  strcat( p_data, "\\plugins" );
  96                  ppsz_argv[ppsz_argc++] = "--plugin-path";
  97                  ppsz_argv[ppsz_argc++] = p_data;
  98              }
  99          }
 100          RegCloseKey( h_key );
 101     }
 102     ppsz_argv[ppsz_argc++] = "--no-one-instance";
 103
 104 #endif /* XP_MACOSX */
 105
 106     /* common settings */
 107     ppsz_argv[ppsz_argc++] = "-vv";
 108     ppsz_argv[ppsz_argc++] = "--no-stats";
 109     ppsz_argv[ppsz_argc++] = "--no-media-library";
 110     ppsz_argv[ppsz_argc++] = "--intf";
 111     ppsz_argv[ppsz_argc++] = "dummy";
 112
 113     const char *progid = NULL;
 114
 115     /* parse plugin arguments */
 116     for( int i = 0; i < argc ; i++ )
 117     {
 118         fprintf(stderr, "argn=%s, argv=%s\n", argn[i], argv[i]);
 119
 120         if( !strcmp( argn[i], "target" )
 121          || !strcmp( argn[i], "mrl")
 122          || !strcmp( argn[i], "filename")
 123          || !strcmp( argn[i], "src") )
 124         {
 125             psz_target = argv[i];
 126         }
 127         else if( !strcmp( argn[i], "autoplay")
 128               || !strcmp( argn[i], "autostart") )
 129         {
 130             b_autoplay = boolValue(argv[i]);
 131         }
 132         else if( !strcmp( argn[i], "fullscreen" ) )
 133         {
 134             if( boolValue(argv[i]) )
 135             {
 136                 ppsz_argv[ppsz_argc++] = "--fullscreen";
 137             }
 138             else
 139             {
 140                 ppsz_argv[ppsz_argc++] = "--no-fullscreen";
 141             }
 142         }
 143         else if( !strcmp( argn[i], "mute" ) )
 144         {
 145             if( boolValue(argv[i]) )
 146             {
 147                 ppsz_argv[ppsz_argc++] = "--volume";
 148                 ppsz_argv[ppsz_argc++] = "0";
 149             }
 150         }
 151         else if( !strcmp( argn[i], "loop")
 152               || !strcmp( argn[i], "autoloop") )
 153         {
 154             if( boolValue(argv[i]) )
 155             {
 156                 ppsz_argv[ppsz_argc++] = "--loop";
 157             }
 158             else {
 159                 ppsz_argv[ppsz_argc++] = "--no-loop";
 160             }
 161         }
 162         else if( !strcmp( argn[i], "version")
 163               || !strcmp( argn[i], "progid") )
 164         {
 165             progid = argv[i];
 166         }
 167     }
 168
 169     libvlc_instance = libvlc_new(ppsz_argc, ppsz_argv, NULL);
 170     if( ! libvlc_instance )
 171     {
 172         return NPERR_GENERIC_ERROR;
 173     }
 174
 175     /*
 176     ** fetch plugin base URL, which is the URL of the page containing the plugin
 177     ** this URL is used for making absolute URL from relative URL that may be
 178     ** passed as an MRL argument
 179     */
 180     NPObject *plugin;
 181
 182     if( NPERR_NO_ERROR == NPN_GetValue(p_browser, NPNVWindowNPObject, &plugin) )
 183     {
 184         /*
 185         ** is there a better way to get that info ?
 186         */
 187         static const char docLocHref[] = "document.location.href";
 188         NPString script;
 189         NPVariant result;
 190
 191         script.utf8characters = docLocHref;
 192         script.utf8length = sizeof(docLocHref)-1;
 193
 194         if( NPN_Evaluate(p_browser, plugin, &script, &result) )
 195         {
 196             if( NPVARIANT_IS_STRING(result) )
 197             {
 198                 NPString &location = NPVARIANT_TO_STRING(result);
 199
 200                 psz_baseURL = new char[location.utf8length+1];
 201                 if( psz_baseURL )
 202                 {
 203                     strncpy(psz_baseURL, location.utf8characters, location.utf8length);
 204                     psz_baseURL[location.utf8length] = '\0';
 205                 }
 206             }
 207             NPN_ReleaseVariantValue(&result);
 208         }
 209         NPN_ReleaseObject(plugin);
 210     }
 211
 212     if( psz_target )
 213     {
 214         // get absolute URL from src
 215         char *psz_absurl = getAbsoluteURL(psz_target);
 216         psz_target = psz_absurl ? psz_absurl : strdup(psz_target);
 217     }
 218
 219     /* assign plugin script root class */
 220     if( (NULL != progid) && (!strcmp(progid, "VideoLAN.VLCPlugin.2")) )
 221     {
 222         /* new APIs */
 223         p_scriptClass = RuntimeNPClass<LibvlcRootNPObject>::getClass();
 224     }
 225     else
 226     {
 227         /* legacy APIs */
 228         p_scriptClass = RuntimeNPClass<VlcNPObject>::getClass();
 229     }
 230
 231     return NPERR_NO_ERROR;
 232 }
 233
 234 #if 0
 235 #ifdef XP_WIN
 236 /* This is really ugly but there is a deadlock when stopping a stream
 237  * (in VLC_CleanUp()) because the video output is a child of the drawable but
 238  * is in a different thread. */
 239 static void HackStopVout( VlcPlugin* p_plugin )
 240 {
 241     MSG msg;
 242     HWND hwnd;
 243     vlc_value_t value;
 244
 245     int i_vlc = libvlc_get_vlc_id(p_plugin->libvlc_instance);
 246     VLC_VariableGet( i_vlc, "drawable", &value );
 247
 248     hwnd = FindWindowEx( (HWND)value.i_int, 0, 0, 0 );
 249     if( !hwnd ) return;
 250
 251     PostMessage( hwnd, WM_CLOSE, 0, 0 );
 252
 253     do
 254     {
 255         while( PeekMessage( &msg, (HWND)value.i_int, 0, 0, PM_REMOVE ) )
 256         {
 257             TranslateMessage(&msg);
 258             DispatchMessage(&msg);
 259         }
 260         if( FindWindowEx( (HWND)value.i_int, 0, 0, 0 ) ) Sleep( 10 );
 261     }
 262     while( (hwnd = FindWindowEx( (HWND)value.i_int, 0, 0, 0 )) );
 263 }
 264 #endif /* XP_WIN */
 265 #endif
 266
 267 VlcPlugin::~VlcPlugin()
 268 {
 269     delete psz_baseURL;
 270     delete psz_target;
 271     if( libvlc_log )
 272         libvlc_log_close(libvlc_log, NULL);
 273     if( libvlc_instance )
 274         libvlc_release(libvlc_instance);
 275 }
 276
 277 /*****************************************************************************
 278  * VlcPlugin methods
 279  *****************************************************************************/
 280
 281 char *VlcPlugin::getAbsoluteURL(const char *url)
 282 {
 283     if( NULL != url )
 284     {
 285         // check whether URL is already absolute
 286         const char *end=strchr(url, ':');
 287         if( (NULL != end) && (end != url) )
 288         {
 289             // validate protocol header
 290             const char *start = url;
 291             char c = *start;
 292             if( isalpha(c) )
 293             {
 294                 ++start;
 295                 while( start != end )
 296                 {
 297                     c  = *start;
 298                     if( ! (isalnum(c)
 299                        || ('-' == c)
 300                        || ('+' == c)
 301                        || ('.' == c)
 302                        || ('/' == c)) ) /* VLC uses / to allow user to specify a demuxer */
 303                         // not valid protocol header, assume relative URL
 304                         goto relativeurl;
 305                     ++start;
 306                 }
 307                 /* we have a protocol header, therefore URL is absolute */
 308                 return strdup(url);
 309             }
 310             // not a valid protocol header, assume relative URL
 311         }
 312
 313 relativeurl:
 314
 315         if( psz_baseURL )
 316         {
 317             size_t baseLen = strlen(psz_baseURL);
 318             char *href = new char[baseLen+strlen(url)+1];
 319             if( href )
 320             {
 321                 /* prepend base URL */
 322                 strcpy(href, psz_baseURL);
 323
 324                 /*
 325                 ** relative url could be empty,
 326                 ** in which case return base URL
 327                 */
 328                 if( '\0' == *url )
 329                     return href;
 330
 331                 /*
 332                 ** locate pathname part of base URL
 333                 */
 334
 335                 /* skip over protocol part  */
 336                 char *pathstart = strchr(href, ':');
 337                 char *pathend;
 338                 if( pathstart )
 339                 {
 340                     if( '/' == *(++pathstart) )
 341                     {
 342                         if( '/' == *(++pathstart) )
 343                         {
 344                             ++pathstart;
 345                         }
 346                     }
 347                     /* skip over host part */
 348                     pathstart = strchr(pathstart, '/');
 349                     pathend = href+baseLen;
 350                     if( ! pathstart )
 351                     {
 352                         // no path, add a / past end of url (over '\0')
 353                         pathstart = pathend;
 354                         *pathstart = '/';
 355                     }
 356                 }
 357                 else
 358                 {
 359                     /* baseURL is just a UNIX path */
 360                     if( '/' != *href )
 361                     {
 362                         /* baseURL is not an absolute path */
 363                         return NULL;
 364                     }
 365                     pathstart = href;
 366                     pathend = href+baseLen;
 367                 }
 368
 369                 /* relative URL made of an absolute path ? */
 370                 if( '/' == *url )
 371                 {
 372                     /* replace path completely */
 373                     strcpy(pathstart, url);
 374                     return href;
 375                 }
 376
 377                 /* find last path component and replace it */
 378                 while( '/' != *pathend)
 379                     --pathend;
 380
 381                 /*
 382                 ** if relative url path starts with one or more '../',
 383                 ** factor them out of href so that we return a
 384                 ** normalized URL
 385                 */
 386                 while( pathend != pathstart )
 387                 {
 388                     const char *p = url;
 389                     if( '.' != *p )
 390                         break;
 391                     ++p;
 392                     if( '\0' == *p  )
 393                     {
 394                         /* relative url is just '.' */
 395                         url = p;
 396                         break;
 397                     }
 398                     if( '/' == *p  )
 399                     {
 400                         /* relative url starts with './' */
 401                         url = ++p;
 402                         continue;
 403                     }
 404                     if( '.' != *p )
 405                         break;
 406                     ++p;
 407                     if( '\0' == *p )
 408                     {
 409                         /* relative url is '..' */
 410                     }
 411                     else
 412                     {
 413                         if( '/' != *p )
 414                             break;
 415                         /* relative url starts with '../' */
 416                         ++p;
 417                     }
 418                     url = p;
 419                     do
 420                     {
 421                         --pathend;
 422                     }
 423                     while( '/' != *pathend );
 424                 }
 425                 /* skip over '/' separator */
 426                 ++pathend;
 427                 /* concatenate remaining base URL and relative URL */
 428                 strcpy(pathend, url);
 429             }
 430             return href;
 431         }
 432     }
 433     return NULL;
 434 }
 435
 436 #if XP_UNIX
 437 int  VlcPlugin::setSize(unsigned width, unsigned height)
 438 {
 439     int diff = (width != i_width) || (height != i_height);
 440
 441     i_width = width;
 442     i_height = height;
 443
 444     /* return size */
 445     return diff;
 446 }
 447
 448 void VlcPlugin::showToolbar()
 449 {
 450     const NPWindow& window = getWindow();
 451     Window control = getControlWindow();
 452     Display *p_display = ((NPSetWindowCallbackStruct *)window.ws_info)->display;
 453
 454     /* load icons */
 455     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/play.xpm",
 456                         &p_btnPlay, NULL, NULL);
 457     if( p_btnPlay )
 458         i_control_height = __MAX( i_control_height, p_btnPlay->height );
 459
 460     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/pause.xpm",
 461                         &p_btnPause, NULL, NULL);
 462     if( p_btnPause )
 463         i_control_height = __MAX( i_control_height, p_btnPause->height );
 464
 465     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/stop.xpm",
 466                         &p_btnStop, NULL, NULL );
 467     if( p_btnStop )
 468         i_control_height = __MAX( i_control_height, p_btnStop->height );
 469
 470     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/time_line.xpm",
 471                         &p_timeline, NULL, NULL);
 472     if( p_timeline )
 473         i_control_height = __MAX( i_control_height, p_timeline->height );
 474
 475     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/time_icon.xpm",
 476                         &p_btnTime, NULL, NULL);
 477     if( p_btnTime )
 478         i_control_height = __MAX( i_control_height, p_btnTime->height );
 479
 480     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/fullscreen.xpm",
 481                         &p_btnFullscreen, NULL, NULL);
 482     if( p_btnFullscreen )
 483         i_control_height = __MAX( i_control_height, p_btnFullscreen->height);
 484
 485     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/volume_max.xpm",
 486                         &p_btnMute, NULL, NULL);
 487     if( p_btnMute )
 488         i_control_height = __MAX( i_control_height, p_btnMute->height);
 489
 490     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/volume_mute.xpm",
 491                         &p_btnUnmute, NULL, NULL);
 492     if( p_btnUnmute )
 493         i_control_height = __MAX( i_control_height, p_btnUnmute->height);
 494
 495     if( !p_btnPlay || !p_btnPause || !p_btnStop || !p_timeline ||
 496         !p_btnTime || !p_btnFullscreen || !p_btnMute || !p_btnUnmute )
 497         fprintf(stderr, "Error: some button images not found in %s\n", DATA_PATH );
 498 }
 499
 500 void VlcPlugin::hideToolbar()
 501 {
 502     if( p_btnPlay )  XDestroyImage( p_btnPlay );
 503     if( p_btnPause ) XDestroyImage( p_btnPause );
 504     if( p_btnStop )  XDestroyImage( p_btnStop );
 505     if( p_timeline ) XDestroyImage( p_timeline );
 506     if( p_btnTime )  XDestroyImage( p_btnTime );
 507     if( p_btnFullscreen ) XDestroyImage( p_btnFullscreen );
 508     if( p_btnMute )  XDestroyImage( p_btnMute );
 509     if( p_btnUnmute ) XDestroyImage( p_btnUnmute );
 510
 511     p_btnPlay = NULL;
 512     p_btnPause = NULL;
 513     p_btnStop = NULL;
 514     p_timeline = NULL;
 515     p_btnTime = NULL;
 516     p_btnFullscreen = NULL;
 517     p_btnMute = NULL;
 518     p_btnUnmute = NULL;
 519 }
 520
 521 void VlcPlugin::redrawToolbar()
 522 {
 523     libvlc_media_instance_t *p_md = NULL;
 524     libvlc_exception_t ex;
 525     float f_position = 0.0;
 526     int i_playing = 0;
 527     bool b_mute = false;
 528
 529     GC gc;
 530     XGCValues gcv;
 531
 532     const NPWindow& window = getWindow();
 533     Window control = getControlWindow();
 534     Display *p_display = ((NPSetWindowCallbackStruct *)window.ws_info)->display;
 535
 536     /* get media instance */
 537     libvlc_exception_init( &ex );
 538     p_md = libvlc_playlist_get_media_instance( getVLC(), &ex );
 539     libvlc_exception_clear( &ex );
 540
 541     /* get isplaying */
 542     libvlc_exception_init( &ex );
 543     i_playing = libvlc_playlist_isplaying( getVLC(), &ex );
 544     libvlc_exception_clear( &ex );
 545
 546     /* get mute info */
 547     libvlc_exception_init(&ex);
 548     b_mute = libvlc_audio_get_mute( getVLC(), &ex );
 549     libvlc_exception_clear( &ex );
 550
 551     /* get movie position in % */
 552     if( i_playing == 1 )
 553     {
 554         libvlc_exception_init( &ex );
 555         f_position = libvlc_media_instance_get_position( p_md, &ex ) * 100;
 556         libvlc_exception_clear( &ex );
 557     }
 558     libvlc_media_instance_release( p_md );
 559
 560     gcv.foreground = BlackPixel( p_display, 0 );
 561     gc = XCreateGC( p_display, control, GCForeground, &gcv );
 562
 563     XFillRectangle( p_display, control, gc,
 564                     0, 0, window.width, i_control_height );
 565     gcv.foreground = WhitePixel( p_display, 0 );
 566     XChangeGC( p_display, gc, GCForeground, &gcv );
 567
 568     /* position icons */
 569     fprintf( stderr, ">>>>>> is playing = %d\n", i_playing );
 570     if( p_btnPause && (i_playing == 1) )
 571     {
 572         XPutImage( p_display, control, gc, p_btnPause, 0, 0, 4, 14,
 573                    p_btnPause->width, p_btnPause->height );
 574     }
 575     else if( p_btnPlay )
 576     {
 577         XPutImage( p_display, control, gc, p_btnPlay, 0, 0, 4, 14,
 578                    p_btnPlay->width, p_btnPlay->height );
 579     }
 580
 581     if( p_btnStop )
 582         XPutImage( p_display, control, gc, p_btnStop, 0, 0, 39, 14,
 583                    p_btnStop->width, p_btnStop->height );
 584     if( p_btnFullscreen )
 585         XPutImage( p_display, control, gc, p_btnFullscreen, 0, 0, 67, 21,
 586                    p_btnFullscreen->width, p_btnFullscreen->height );
 587
 588     if( p_btnUnmute && b_mute )
 589     {
 590         XPutImage( p_display, control, gc, p_btnUnmute, 0, 0, 94, 30,
 591                    p_btnUnmute->width, p_btnUnmute->height );
 592     }
 593     else if( p_btnMute )
 594     {
 595         XPutImage( p_display, control, gc, p_btnMute, 0, 0, 94, 30,
 596                    p_btnMute->width, p_btnMute->height );
 597     }
 598
 599     if( p_timeline )
 600         XPutImage( p_display, control, gc, p_timeline, 0, 0, 4, 4,
 601                    (window.width-8), p_timeline->height );
 602
 603     if( f_position > 0 )
 604         i_last_position = (((float)window.width-8.0)/100.0)*f_position;
 605     if( p_btnTime )
 606         XPutImage( p_display, control, gc, p_btnTime,
 607                    0, 0, (4+i_last_position), 2,
 608                    p_btnTime->width, p_btnTime->height );
 609
 610     XFreeGC( p_display, gc );
 611 }
 612 #endif