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     b_show_toolbar(1),
  48 #if XP_UNIX
  49     i_control_height(45),
  50 #endif
  51     psz_target(NULL),
  52     libvlc_instance(NULL),
  53     libvlc_log(NULL),
  54     p_scriptClass(NULL),
  55     p_browser(instance),
  56     psz_baseURL(NULL)
  57 #if XP_WIN
  58     ,pf_wndproc(NULL)
  59 #endif
  60 #if XP_UNIX
  61     ,i_width((unsigned)-1)
  62     ,i_height((unsigned)-1)
  63     ,i_last_position(0)
  64 #endif
  65 {
  66     memset(&npwindow, 0, sizeof(NPWindow));
  67 }
  68
  69 static bool boolValue(const char *value) {
  70     return ( !strcmp(value, "1") ||
  71              !strcasecmp(value, "true") ||
  72              !strcasecmp(value, "yes") );
  73 }
  74
  75 NPError VlcPlugin::init(int argc, char* const argn[], char* const argv[])
  76 {
  77     /* prepare VLC command line */
  78     char *ppsz_argv[32];
  79     int ppsz_argc = 0;
  80
  81     /* locate VLC module path */
  82 #ifdef XP_MACOSX
  83     ppsz_argv[ppsz_argc++] = "--plugin-path";
  84     ppsz_argv[ppsz_argc++] = "/Library/Internet Plug-Ins/VLC Plugin.plugin/"
  85                              "Contents/MacOS/modules";
  86 #elif defined(XP_WIN)
  87     HKEY h_key;
  88     DWORD i_type, i_data = MAX_PATH + 1;
  89     char p_data[MAX_PATH + 1];
  90     if( RegOpenKeyEx( HKEY_LOCAL_MACHINE, "Software\\VideoLAN\\VLC",
  91                       0, KEY_READ, &h_key ) == ERROR_SUCCESS )
  92     {
  93          if( RegQueryValueEx( h_key, "InstallDir", 0, &i_type,
  94                               (LPBYTE)p_data, &i_data ) == ERROR_SUCCESS )
  95          {
  96              if( i_type == REG_SZ )
  97              {
  98                  strcat( p_data, "\\plugins" );
  99                  ppsz_argv[ppsz_argc++] = "--plugin-path";
 100                  ppsz_argv[ppsz_argc++] = p_data;
 101              }
 102          }
 103          RegCloseKey( h_key );
 104     }
 105     ppsz_argv[ppsz_argc++] = "--no-one-instance";
 106
 107 #endif /* XP_MACOSX */
 108
 109     /* common settings */
 110     ppsz_argv[ppsz_argc++] = "-vv";
 111     ppsz_argv[ppsz_argc++] = "--no-stats";
 112     ppsz_argv[ppsz_argc++] = "--no-media-library";
 113     ppsz_argv[ppsz_argc++] = "--intf";
 114     ppsz_argv[ppsz_argc++] = "dummy";
 115
 116     const char *progid = NULL;
 117
 118     /* parse plugin arguments */
 119     for( int i = 0; i < argc ; i++ )
 120     {
 121         fprintf(stderr, "argn=%s, argv=%s\n", argn[i], argv[i]);
 122
 123         if( !strcmp( argn[i], "target" )
 124          || !strcmp( argn[i], "mrl")
 125          || !strcmp( argn[i], "filename")
 126          || !strcmp( argn[i], "src") )
 127         {
 128             psz_target = argv[i];
 129         }
 130         else if( !strcmp( argn[i], "autoplay")
 131               || !strcmp( argn[i], "autostart") )
 132         {
 133             b_autoplay = boolValue(argv[i]);
 134         }
 135         else if( !strcmp( argn[i], "fullscreen" ) )
 136         {
 137             if( boolValue(argv[i]) )
 138             {
 139                 ppsz_argv[ppsz_argc++] = "--fullscreen";
 140             }
 141             else
 142             {
 143                 ppsz_argv[ppsz_argc++] = "--no-fullscreen";
 144             }
 145         }
 146         else if( !strcmp( argn[i], "mute" ) )
 147         {
 148             if( boolValue(argv[i]) )
 149             {
 150                 ppsz_argv[ppsz_argc++] = "--volume";
 151                 ppsz_argv[ppsz_argc++] = "0";
 152             }
 153         }
 154         else if( !strcmp( argn[i], "loop")
 155               || !strcmp( argn[i], "autoloop") )
 156         {
 157             if( boolValue(argv[i]) )
 158             {
 159                 ppsz_argv[ppsz_argc++] = "--loop";
 160             }
 161             else {
 162                 ppsz_argv[ppsz_argc++] = "--no-loop";
 163             }
 164         }
 165         else if( !strcmp( argn[i], "version")
 166               || !strcmp( argn[i], "progid") )
 167         {
 168             progid = argv[i];
 169         }
 170         else if( !strcmp( argn[i], "show_toolbar" ) )
 171         {
 172             b_show_toolbar = boolValue(argv[i]);
 173         }
 174     }
 175
 176
 177
 178     libvlc_instance = libvlc_new(ppsz_argc, ppsz_argv, NULL);
 179     if( ! libvlc_instance )
 180     {
 181         return NPERR_GENERIC_ERROR;
 182     }
 183
 184     /*
 185     ** fetch plugin base URL, which is the URL of the page containing the plugin
 186     ** this URL is used for making absolute URL from relative URL that may be
 187     ** passed as an MRL argument
 188     */
 189     NPObject *plugin;
 190
 191     if( NPERR_NO_ERROR == NPN_GetValue(p_browser, NPNVWindowNPObject, &plugin) )
 192     {
 193         /*
 194         ** is there a better way to get that info ?
 195         */
 196         static const char docLocHref[] = "document.location.href";
 197         NPString script;
 198         NPVariant result;
 199
 200         script.utf8characters = docLocHref;
 201         script.utf8length = sizeof(docLocHref)-1;
 202
 203         if( NPN_Evaluate(p_browser, plugin, &script, &result) )
 204         {
 205             if( NPVARIANT_IS_STRING(result) )
 206             {
 207                 NPString &location = NPVARIANT_TO_STRING(result);
 208
 209                 psz_baseURL = new char[location.utf8length+1];
 210                 if( psz_baseURL )
 211                 {
 212                     strncpy(psz_baseURL, location.utf8characters, location.utf8length);
 213                     psz_baseURL[location.utf8length] = '\0';
 214                 }
 215             }
 216             NPN_ReleaseVariantValue(&result);
 217         }
 218         NPN_ReleaseObject(plugin);
 219     }
 220
 221     if( psz_target )
 222     {
 223         // get absolute URL from src
 224         char *psz_absurl = getAbsoluteURL(psz_target);
 225         psz_target = psz_absurl ? psz_absurl : strdup(psz_target);
 226     }
 227
 228     /* assign plugin script root class */
 229     if( (NULL != progid) && (!strcmp(progid, "VideoLAN.VLCPlugin.2")) )
 230     {
 231         /* new APIs */
 232         p_scriptClass = RuntimeNPClass<LibvlcRootNPObject>::getClass();
 233     }
 234     else
 235     {
 236         /* legacy APIs */
 237         p_scriptClass = RuntimeNPClass<VlcNPObject>::getClass();
 238     }
 239
 240     return NPERR_NO_ERROR;
 241 }
 242
 243 #if 0
 244 #ifdef XP_WIN
 245 /* This is really ugly but there is a deadlock when stopping a stream
 246  * (in VLC_CleanUp()) because the video output is a child of the drawable but
 247  * is in a different thread. */
 248 static void HackStopVout( VlcPlugin* p_plugin )
 249 {
 250     MSG msg;
 251     HWND hwnd;
 252     vlc_value_t value;
 253
 254     int i_vlc = libvlc_get_vlc_id(p_plugin->libvlc_instance);
 255     VLC_VariableGet( i_vlc, "drawable", &value );
 256
 257     hwnd = FindWindowEx( (HWND)value.i_int, 0, 0, 0 );
 258     if( !hwnd ) return;
 259
 260     PostMessage( hwnd, WM_CLOSE, 0, 0 );
 261
 262     do
 263     {
 264         while( PeekMessage( &msg, (HWND)value.i_int, 0, 0, PM_REMOVE ) )
 265         {
 266             TranslateMessage(&msg);
 267             DispatchMessage(&msg);
 268         }
 269         if( FindWindowEx( (HWND)value.i_int, 0, 0, 0 ) ) Sleep( 10 );
 270     }
 271     while( (hwnd = FindWindowEx( (HWND)value.i_int, 0, 0, 0 )) );
 272 }
 273 #endif /* XP_WIN */
 274 #endif
 275
 276 VlcPlugin::~VlcPlugin()
 277 {
 278     delete psz_baseURL;
 279     delete psz_target;
 280     if( libvlc_log )
 281         libvlc_log_close(libvlc_log, NULL);
 282     if( libvlc_instance )
 283         libvlc_release(libvlc_instance);
 284 }
 285
 286 /*****************************************************************************
 287  * VlcPlugin methods
 288  *****************************************************************************/
 289
 290 char *VlcPlugin::getAbsoluteURL(const char *url)
 291 {
 292     if( NULL != url )
 293     {
 294         // check whether URL is already absolute
 295         const char *end=strchr(url, ':');
 296         if( (NULL != end) && (end != url) )
 297         {
 298             // validate protocol header
 299             const char *start = url;
 300             char c = *start;
 301             if( isalpha(c) )
 302             {
 303                 ++start;
 304                 while( start != end )
 305                 {
 306                     c  = *start;
 307                     if( ! (isalnum(c)
 308                        || ('-' == c)
 309                        || ('+' == c)
 310                        || ('.' == c)
 311                        || ('/' == c)) ) /* VLC uses / to allow user to specify a demuxer */
 312                         // not valid protocol header, assume relative URL
 313                         goto relativeurl;
 314                     ++start;
 315                 }
 316                 /* we have a protocol header, therefore URL is absolute */
 317                 return strdup(url);
 318             }
 319             // not a valid protocol header, assume relative URL
 320         }
 321
 322 relativeurl:
 323
 324         if( psz_baseURL )
 325         {
 326             size_t baseLen = strlen(psz_baseURL);
 327             char *href = new char[baseLen+strlen(url)+1];
 328             if( href )
 329             {
 330                 /* prepend base URL */
 331                 strcpy(href, psz_baseURL);
 332
 333                 /*
 334                 ** relative url could be empty,
 335                 ** in which case return base URL
 336                 */
 337                 if( '\0' == *url )
 338                     return href;
 339
 340                 /*
 341                 ** locate pathname part of base URL
 342                 */
 343
 344                 /* skip over protocol part  */
 345                 char *pathstart = strchr(href, ':');
 346                 char *pathend;
 347                 if( pathstart )
 348                 {
 349                     if( '/' == *(++pathstart) )
 350                     {
 351                         if( '/' == *(++pathstart) )
 352                         {
 353                             ++pathstart;
 354                         }
 355                     }
 356                     /* skip over host part */
 357                     pathstart = strchr(pathstart, '/');
 358                     pathend = href+baseLen;
 359                     if( ! pathstart )
 360                     {
 361                         // no path, add a / past end of url (over '\0')
 362                         pathstart = pathend;
 363                         *pathstart = '/';
 364                     }
 365                 }
 366                 else
 367                 {
 368                     /* baseURL is just a UNIX path */
 369                     if( '/' != *href )
 370                     {
 371                         /* baseURL is not an absolute path */
 372                         return NULL;
 373                     }
 374                     pathstart = href;
 375                     pathend = href+baseLen;
 376                 }
 377
 378                 /* relative URL made of an absolute path ? */
 379                 if( '/' == *url )
 380                 {
 381                     /* replace path completely */
 382                     strcpy(pathstart, url);
 383                     return href;
 384                 }
 385
 386                 /* find last path component and replace it */
 387                 while( '/' != *pathend)
 388                     --pathend;
 389
 390                 /*
 391                 ** if relative url path starts with one or more '../',
 392                 ** factor them out of href so that we return a
 393                 ** normalized URL
 394                 */
 395                 while( pathend != pathstart )
 396                 {
 397                     const char *p = url;
 398                     if( '.' != *p )
 399                         break;
 400                     ++p;
 401                     if( '\0' == *p  )
 402                     {
 403                         /* relative url is just '.' */
 404                         url = p;
 405                         break;
 406                     }
 407                     if( '/' == *p  )
 408                     {
 409                         /* relative url starts with './' */
 410                         url = ++p;
 411                         continue;
 412                     }
 413                     if( '.' != *p )
 414                         break;
 415                     ++p;
 416                     if( '\0' == *p )
 417                     {
 418                         /* relative url is '..' */
 419                     }
 420                     else
 421                     {
 422                         if( '/' != *p )
 423                             break;
 424                         /* relative url starts with '../' */
 425                         ++p;
 426                     }
 427                     url = p;
 428                     do
 429                     {
 430                         --pathend;
 431                     }
 432                     while( '/' != *pathend );
 433                 }
 434                 /* skip over '/' separator */
 435                 ++pathend;
 436                 /* concatenate remaining base URL and relative URL */
 437                 strcpy(pathend, url);
 438             }
 439             return href;
 440         }
 441     }
 442     return NULL;
 443 }
 444
 445 #if XP_UNIX
 446 int  VlcPlugin::setSize(unsigned width, unsigned height)
 447 {
 448     int diff = (width != i_width) || (height != i_height);
 449
 450     i_width = width;
 451     i_height = height;
 452
 453     /* return size */
 454     return diff;
 455 }
 456
 457 void VlcPlugin::showToolbar()
 458 {
 459     const NPWindow& window = getWindow();
 460     Window control = getControlWindow();
 461     Display *p_display = ((NPSetWindowCallbackStruct *)window.ws_info)->display;
 462
 463     /* load icons */
 464     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/play.xpm",
 465                         &p_btnPlay, NULL, NULL);
 466     if( p_btnPlay )
 467         i_control_height = __MAX( i_control_height, p_btnPlay->height );
 468
 469     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/pause.xpm",
 470                         &p_btnPause, NULL, NULL);
 471     if( p_btnPause )
 472         i_control_height = __MAX( i_control_height, p_btnPause->height );
 473
 474     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/stop.xpm",
 475                         &p_btnStop, NULL, NULL );
 476     if( p_btnStop )
 477         i_control_height = __MAX( i_control_height, p_btnStop->height );
 478
 479     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/time_line.xpm",
 480                         &p_timeline, NULL, NULL);
 481     if( p_timeline )
 482         i_control_height = __MAX( i_control_height, p_timeline->height );
 483
 484     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/time_icon.xpm",
 485                         &p_btnTime, NULL, NULL);
 486     if( p_btnTime )
 487         i_control_height = __MAX( i_control_height, p_btnTime->height );
 488
 489     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/fullscreen.xpm",
 490                         &p_btnFullscreen, NULL, NULL);
 491     if( p_btnFullscreen )
 492         i_control_height = __MAX( i_control_height, p_btnFullscreen->height);
 493
 494     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/volume_max.xpm",
 495                         &p_btnMute, NULL, NULL);
 496     if( p_btnMute )
 497         i_control_height = __MAX( i_control_height, p_btnMute->height);
 498
 499     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/volume_mute.xpm",
 500                         &p_btnUnmute, NULL, NULL);
 501     if( p_btnUnmute )
 502         i_control_height = __MAX( i_control_height, p_btnUnmute->height);
 503
 504     if( !p_btnPlay || !p_btnPause || !p_btnStop || !p_timeline ||
 505         !p_btnTime || !p_btnFullscreen || !p_btnMute || !p_btnUnmute )
 506         fprintf(stderr, "Error: some button images not found in %s\n", DATA_PATH );
 507 }
 508
 509 void VlcPlugin::hideToolbar()
 510 {
 511     if( p_btnPlay )  XDestroyImage( p_btnPlay );
 512     if( p_btnPause ) XDestroyImage( p_btnPause );
 513     if( p_btnStop )  XDestroyImage( p_btnStop );
 514     if( p_timeline ) XDestroyImage( p_timeline );
 515     if( p_btnTime )  XDestroyImage( p_btnTime );
 516     if( p_btnFullscreen ) XDestroyImage( p_btnFullscreen );
 517     if( p_btnMute )  XDestroyImage( p_btnMute );
 518     if( p_btnUnmute ) XDestroyImage( p_btnUnmute );
 519
 520     p_btnPlay = NULL;
 521     p_btnPause = NULL;
 522     p_btnStop = NULL;
 523     p_timeline = NULL;
 524     p_btnTime = NULL;
 525     p_btnFullscreen = NULL;
 526     p_btnMute = NULL;
 527     p_btnUnmute = NULL;
 528 }
 529
 530 void VlcPlugin::redrawToolbar()
 531 {
 532     libvlc_media_instance_t *p_md = NULL;
 533     libvlc_exception_t ex;
 534     float f_position = 0.0;
 535     int i_playing = 0;
 536     bool b_mute = false;
 537
 538     GC gc;
 539     XGCValues gcv;
 540
 541     const NPWindow& window = getWindow();
 542     Window control = getControlWindow();
 543     Display *p_display = ((NPSetWindowCallbackStruct *)window.ws_info)->display;
 544
 545     /* get media instance */
 546     libvlc_exception_init( &ex );
 547     p_md = libvlc_playlist_get_media_instance( getVLC(), &ex );
 548     libvlc_exception_clear( &ex );
 549
 550     /* get isplaying */
 551     libvlc_exception_init( &ex );
 552     i_playing = libvlc_playlist_isplaying( getVLC(), &ex );
 553     libvlc_exception_clear( &ex );
 554
 555     /* get mute info */
 556     libvlc_exception_init(&ex);
 557     b_mute = libvlc_audio_get_mute( getVLC(), &ex );
 558     libvlc_exception_clear( &ex );
 559
 560     /* get movie position in % */
 561     if( i_playing == 1 )
 562     {
 563         libvlc_exception_init( &ex );
 564         f_position = libvlc_media_instance_get_position( p_md, &ex ) * 100;
 565         libvlc_exception_clear( &ex );
 566     }
 567     libvlc_media_instance_release( p_md );
 568
 569     gcv.foreground = BlackPixel( p_display, 0 );
 570     gc = XCreateGC( p_display, control, GCForeground, &gcv );
 571
 572     XFillRectangle( p_display, control, gc,
 573                     0, 0, window.width, i_control_height );
 574     gcv.foreground = WhitePixel( p_display, 0 );
 575     XChangeGC( p_display, gc, GCForeground, &gcv );
 576
 577     /* position icons */
 578     fprintf( stderr, ">>>>>> is playing = %d\n", i_playing );
 579     if( p_btnPause && (i_playing == 1) )
 580     {
 581         XPutImage( p_display, control, gc, p_btnPause, 0, 0, 4, 14,
 582                    p_btnPause->width, p_btnPause->height );
 583     }
 584     else if( p_btnPlay )
 585     {
 586         XPutImage( p_display, control, gc, p_btnPlay, 0, 0, 4, 14,
 587                    p_btnPlay->width, p_btnPlay->height );
 588     }
 589
 590     if( p_btnStop )
 591         XPutImage( p_display, control, gc, p_btnStop, 0, 0, 39, 14,
 592                    p_btnStop->width, p_btnStop->height );
 593     if( p_btnFullscreen )
 594         XPutImage( p_display, control, gc, p_btnFullscreen, 0, 0, 67, 21,
 595                    p_btnFullscreen->width, p_btnFullscreen->height );
 596
 597     if( p_btnUnmute && b_mute )
 598     {
 599         XPutImage( p_display, control, gc, p_btnUnmute, 0, 0, 94, 30,
 600                    p_btnUnmute->width, p_btnUnmute->height );
 601     }
 602     else if( p_btnMute )
 603     {
 604         XPutImage( p_display, control, gc, p_btnMute, 0, 0, 94, 30,
 605                    p_btnMute->width, p_btnMute->height );
 606     }
 607
 608     if( p_timeline )
 609         XPutImage( p_display, control, gc, p_timeline, 0, 0, 4, 4,
 610                    (window.width-8), p_timeline->height );
 611
 612     if( f_position > 0 )
 613         i_last_position = (((float)window.width-8.0)/100.0)*f_position;
 614     if( p_btnTime )
 615         XPutImage( p_display, control, gc, p_btnTime,
 616                    0, 0, (4+i_last_position), 2,
 617                    p_btnTime->width, p_btnTime->height );
 618
 619     XFreeGC( p_display, gc );
 620 }
 621 #endif