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/npolibvlc.h"
  36
  37 #include <ctype.h>
  38
  39 /*****************************************************************************
  40  * VlcPlugin constructor and destructor
  41  *****************************************************************************/
  42 VlcPlugin::VlcPlugin( NPP instance, uint16 mode ) :
  43     i_npmode(mode),
  44     b_stream(0),
  45     b_autoplay(1),
  46     b_toolbar(0),
  47     psz_target(NULL),
  48     libvlc_instance(NULL),
  49     libvlc_log(NULL),
  50     p_scriptClass(NULL),
  51     p_browser(instance),
  52     psz_baseURL(NULL)
  53 #if XP_WIN
  54     ,pf_wndproc(NULL)
  55 #endif
  56 #if XP_UNIX
  57     ,i_width((unsigned)-1)
  58     ,i_height((unsigned)-1)
  59     ,i_tb_width(0)
  60     ,i_tb_height(0)
  61     ,i_last_position(0)
  62 #endif
  63 {
  64     memset(&npwindow, 0, sizeof(NPWindow));
  65 }
  66
  67 static bool boolValue(const char *value) {
  68     return ( !strcmp(value, "1") ||
  69              !strcasecmp(value, "true") ||
  70              !strcasecmp(value, "yes") );
  71 }
  72
  73 NPError VlcPlugin::init(int argc, char* const argn[], char* const argv[])
  74 {
  75     /* prepare VLC command line */
  76     char *ppsz_argv[32];
  77     int ppsz_argc = 0;
  78
  79     /* locate VLC module path */
  80 #ifdef XP_MACOSX
  81     ppsz_argv[ppsz_argc++] = "--plugin-path";
  82     ppsz_argv[ppsz_argc++] = "/Library/Internet Plug-Ins/VLC Plugin.plugin/"
  83                              "Contents/MacOS/modules";
  84 #elif defined(XP_WIN)
  85     HKEY h_key;
  86     DWORD i_type, i_data = MAX_PATH + 1;
  87     char p_data[MAX_PATH + 1];
  88     if( RegOpenKeyEx( HKEY_LOCAL_MACHINE, "Software\\VideoLAN\\VLC",
  89                       0, KEY_READ, &h_key ) == ERROR_SUCCESS )
  90     {
  91          if( RegQueryValueEx( h_key, "InstallDir", 0, &i_type,
  92                               (LPBYTE)p_data, &i_data ) == ERROR_SUCCESS )
  93          {
  94              if( i_type == REG_SZ )
  95              {
  96                  strcat( p_data, "\\plugins" );
  97                  ppsz_argv[ppsz_argc++] = "--plugin-path";
  98                  ppsz_argv[ppsz_argc++] = p_data;
  99              }
 100          }
 101          RegCloseKey( h_key );
 102     }
 103     ppsz_argv[ppsz_argc++] = "--no-one-instance";
 104
 105 #endif /* XP_MACOSX */
 106
 107     /* common settings */
 108     ppsz_argv[ppsz_argc++] = "-vv";
 109     ppsz_argv[ppsz_argc++] = "--no-stats";
 110     ppsz_argv[ppsz_argc++] = "--no-media-library";
 111     ppsz_argv[ppsz_argc++] = "--ignore-config";
 112     ppsz_argv[ppsz_argc++] = "--intf";
 113     ppsz_argv[ppsz_argc++] = "dummy";
 114
 115     const char *progid = NULL;
 116
 117     /* parse plugin arguments */
 118     for( int i = 0; i < argc ; i++ )
 119     {
 120         fprintf(stderr, "argn=%s, argv=%s\n", argn[i], argv[i]);
 121
 122         if( !strcmp( argn[i], "target" )
 123          || !strcmp( argn[i], "mrl")
 124          || !strcmp( argn[i], "filename")
 125          || !strcmp( argn[i], "src") )
 126         {
 127             psz_target = argv[i];
 128         }
 129         else if( !strcmp( argn[i], "autoplay")
 130               || !strcmp( argn[i], "autostart") )
 131         {
 132             b_autoplay = boolValue(argv[i]);
 133         }
 134         else if( !strcmp( argn[i], "fullscreen" ) )
 135         {
 136             if( boolValue(argv[i]) )
 137             {
 138                 ppsz_argv[ppsz_argc++] = "--fullscreen";
 139             }
 140             else
 141             {
 142                 ppsz_argv[ppsz_argc++] = "--no-fullscreen";
 143             }
 144         }
 145         else if( !strcmp( argn[i], "mute" ) )
 146         {
 147             if( boolValue(argv[i]) )
 148             {
 149                 ppsz_argv[ppsz_argc++] = "--volume";
 150                 ppsz_argv[ppsz_argc++] = "0";
 151             }
 152         }
 153         else if( !strcmp( argn[i], "loop")
 154               || !strcmp( argn[i], "autoloop") )
 155         {
 156             if( boolValue(argv[i]) )
 157             {
 158                 ppsz_argv[ppsz_argc++] = "--loop";
 159             }
 160             else {
 161                 ppsz_argv[ppsz_argc++] = "--no-loop";
 162             }
 163         }
 164         else if( !strcmp( argn[i], "version")
 165               || !strcmp( argn[i], "progid") )
 166         {
 167             progid = argv[i];
 168         }
 169         else if( !strcmp( argn[i], "toolbar" ) )
 170         {
 171             b_toolbar = boolValue(argv[i]);
 172         }
 173     }
 174
 175     libvlc_exception_t ex;
 176     libvlc_exception_init(&ex);
 177
 178     libvlc_instance = libvlc_new(ppsz_argc, ppsz_argv, &ex);
 179     if( libvlc_exception_raised(&ex) )
 180     {
 181         libvlc_exception_clear(&ex);
 182         return NPERR_GENERIC_ERROR;
 183     }
 184
 185     /*
 186     ** fetch plugin base URL, which is the URL of the page containing the plugin
 187     ** this URL is used for making absolute URL from relative URL that may be
 188     ** passed as an MRL argument
 189     */
 190     NPObject *plugin;
 191
 192     if( NPERR_NO_ERROR == NPN_GetValue(p_browser, NPNVWindowNPObject, &plugin) )
 193     {
 194         /*
 195         ** is there a better way to get that info ?
 196         */
 197         static const char docLocHref[] = "document.location.href";
 198         NPString script;
 199         NPVariant result;
 200
 201         script.utf8characters = docLocHref;
 202         script.utf8length = sizeof(docLocHref)-1;
 203
 204         if( NPN_Evaluate(p_browser, plugin, &script, &result) )
 205         {
 206             if( NPVARIANT_IS_STRING(result) )
 207             {
 208                 NPString &location = NPVARIANT_TO_STRING(result);
 209
 210                 psz_baseURL = new char[location.utf8length+1];
 211                 if( psz_baseURL )
 212                 {
 213                     strncpy(psz_baseURL, location.utf8characters, location.utf8length);
 214                     psz_baseURL[location.utf8length] = '\0';
 215                 }
 216             }
 217             NPN_ReleaseVariantValue(&result);
 218         }
 219         NPN_ReleaseObject(plugin);
 220     }
 221
 222     if( psz_target )
 223     {
 224         // get absolute URL from src
 225         char *psz_absurl = getAbsoluteURL(psz_target);
 226         psz_target = psz_absurl ? psz_absurl : strdup(psz_target);
 227     }
 228
 229     /* assign plugin script root class */
 230     /* new APIs */
 231     p_scriptClass = RuntimeNPClass<LibvlcRootNPObject>::getClass();
 232
 233     return NPERR_NO_ERROR;
 234 }
 235
 236 VlcPlugin::~VlcPlugin()
 237 {
 238     delete psz_baseURL;
 239     delete psz_target;
 240     if( libvlc_log )
 241         libvlc_log_close(libvlc_log, NULL);
 242     if( libvlc_instance )
 243         libvlc_release(libvlc_instance);
 244 }
 245
 246 /*****************************************************************************
 247  * VlcPlugin methods
 248  *****************************************************************************/
 249
 250 char *VlcPlugin::getAbsoluteURL(const char *url)
 251 {
 252     if( NULL != url )
 253     {
 254         // check whether URL is already absolute
 255         const char *end=strchr(url, ':');
 256         if( (NULL != end) && (end != url) )
 257         {
 258             // validate protocol header
 259             const char *start = url;
 260             char c = *start;
 261             if( isalpha(c) )
 262             {
 263                 ++start;
 264                 while( start != end )
 265                 {
 266                     c  = *start;
 267                     if( ! (isalnum(c)
 268                        || ('-' == c)
 269                        || ('+' == c)
 270                        || ('.' == c)
 271                        || ('/' == c)) ) /* VLC uses / to allow user to specify a demuxer */
 272                         // not valid protocol header, assume relative URL
 273                         goto relativeurl;
 274                     ++start;
 275                 }
 276                 /* we have a protocol header, therefore URL is absolute */
 277                 return strdup(url);
 278             }
 279             // not a valid protocol header, assume relative URL
 280         }
 281
 282 relativeurl:
 283
 284         if( psz_baseURL )
 285         {
 286             size_t baseLen = strlen(psz_baseURL);
 287             char *href = new char[baseLen+strlen(url)+1];
 288             if( href )
 289             {
 290                 /* prepend base URL */
 291                 strcpy(href, psz_baseURL);
 292
 293                 /*
 294                 ** relative url could be empty,
 295                 ** in which case return base URL
 296                 */
 297                 if( '\0' == *url )
 298                     return href;
 299
 300                 /*
 301                 ** locate pathname part of base URL
 302                 */
 303
 304                 /* skip over protocol part  */
 305                 char *pathstart = strchr(href, ':');
 306                 char *pathend;
 307                 if( pathstart )
 308                 {
 309                     if( '/' == *(++pathstart) )
 310                     {
 311                         if( '/' == *(++pathstart) )
 312                         {
 313                             ++pathstart;
 314                         }
 315                     }
 316                     /* skip over host part */
 317                     pathstart = strchr(pathstart, '/');
 318                     pathend = href+baseLen;
 319                     if( ! pathstart )
 320                     {
 321                         // no path, add a / past end of url (over '\0')
 322                         pathstart = pathend;
 323                         *pathstart = '/';
 324                     }
 325                 }
 326                 else
 327                 {
 328                     /* baseURL is just a UNIX path */
 329                     if( '/' != *href )
 330                     {
 331                         /* baseURL is not an absolute path */
 332                         return NULL;
 333                     }
 334                     pathstart = href;
 335                     pathend = href+baseLen;
 336                 }
 337
 338                 /* relative URL made of an absolute path ? */
 339                 if( '/' == *url )
 340                 {
 341                     /* replace path completely */
 342                     strcpy(pathstart, url);
 343                     return href;
 344                 }
 345
 346                 /* find last path component and replace it */
 347                 while( '/' != *pathend)
 348                     --pathend;
 349
 350                 /*
 351                 ** if relative url path starts with one or more '../',
 352                 ** factor them out of href so that we return a
 353                 ** normalized URL
 354                 */
 355                 while( pathend != pathstart )
 356                 {
 357                     const char *p = url;
 358                     if( '.' != *p )
 359                         break;
 360                     ++p;
 361                     if( '\0' == *p  )
 362                     {
 363                         /* relative url is just '.' */
 364                         url = p;
 365                         break;
 366                     }
 367                     if( '/' == *p  )
 368                     {
 369                         /* relative url starts with './' */
 370                         url = ++p;
 371                         continue;
 372                     }
 373                     if( '.' != *p )
 374                         break;
 375                     ++p;
 376                     if( '\0' == *p )
 377                     {
 378                         /* relative url is '..' */
 379                     }
 380                     else
 381                     {
 382                         if( '/' != *p )
 383                             break;
 384                         /* relative url starts with '../' */
 385                         ++p;
 386                     }
 387                     url = p;
 388                     do
 389                     {
 390                         --pathend;
 391                     }
 392                     while( '/' != *pathend );
 393                 }
 394                 /* skip over '/' separator */
 395                 ++pathend;
 396                 /* concatenate remaining base URL and relative URL */
 397                 strcpy(pathend, url);
 398             }
 399             return href;
 400         }
 401     }
 402     return NULL;
 403 }
 404
 405 #if XP_UNIX
 406 int  VlcPlugin::setSize(unsigned width, unsigned height)
 407 {
 408     int diff = (width != i_width) || (height != i_height);
 409
 410     i_width = width;
 411     i_height = height;
 412
 413     /* return size */
 414     return diff;
 415 }
 416
 417 void VlcPlugin::showToolbar()
 418 {
 419     const NPWindow& window = getWindow();
 420     Window control = getControlWindow();
 421     Display *p_display = ((NPSetWindowCallbackStruct *)window.ws_info)->display;
 422     unsigned int i_height = 0, i_width = 0;
 423
 424     /* load icons */
 425     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/play.xpm",
 426                         &p_btnPlay, NULL, NULL);
 427     if( p_btnPlay )
 428     {
 429         i_height = __MAX( i_height, p_btnPlay->height );
 430         i_width += p_btnPlay->width;
 431     }
 432     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/pause.xpm",
 433                         &p_btnPause, NULL, NULL);
 434     if( p_btnPause )
 435     {
 436         i_height = __MAX( i_height, p_btnPause->height );
 437         i_width += p_btnPause->width;
 438     }
 439     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/stop.xpm",
 440                         &p_btnStop, NULL, NULL );
 441     if( p_btnStop )
 442     {
 443         i_height = __MAX( i_height, p_btnStop->height );
 444         i_width += p_btnStop->width;
 445     }
 446     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/time_line.xpm",
 447                         &p_timeline, NULL, NULL);
 448     if( p_timeline )
 449     {
 450         i_height = __MAX( i_height, p_timeline->height );
 451         i_width += p_timeline->width;
 452     }
 453     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/time_icon.xpm",
 454                         &p_btnTime, NULL, NULL);
 455     if( p_btnTime )
 456     {
 457         i_height = __MAX( i_height, p_btnTime->height );
 458         i_width += p_btnTime->width;
 459     }
 460     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/fullscreen.xpm",
 461                         &p_btnFullscreen, NULL, NULL);
 462     if( p_btnFullscreen )
 463     {
 464         i_height = __MAX( i_height, p_btnFullscreen->height );
 465         i_width += p_btnFullscreen->width;
 466     }
 467     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/volume_max.xpm",
 468                         &p_btnMute, NULL, NULL);
 469     if( p_btnMute )
 470     {
 471         i_height = __MAX( i_height, p_btnMute->height );
 472         i_width += p_btnMute->width;
 473     }
 474     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/volume_mute.xpm",
 475                         &p_btnUnmute, NULL, NULL);
 476     if( p_btnUnmute )
 477     {
 478         i_height = __MAX( i_height, p_btnUnmute->height );
 479         i_width += p_btnUnmute->width;
 480     }
 481     setToolbarSize( i_width, i_height );
 482
 483     if( !p_btnPlay || !p_btnPause || !p_btnStop || !p_timeline ||
 484         !p_btnTime || !p_btnFullscreen || !p_btnMute || !p_btnUnmute )
 485         fprintf(stderr, "Error: some button images not found in %s\n", DATA_PATH );
 486 }
 487
 488 void VlcPlugin::hideToolbar()
 489 {
 490     i_tb_width = i_tb_height = 0;
 491
 492     if( p_btnPlay )  XDestroyImage( p_btnPlay );
 493     if( p_btnPause ) XDestroyImage( p_btnPause );
 494     if( p_btnStop )  XDestroyImage( p_btnStop );
 495     if( p_timeline ) XDestroyImage( p_timeline );
 496     if( p_btnTime )  XDestroyImage( p_btnTime );
 497     if( p_btnFullscreen ) XDestroyImage( p_btnFullscreen );
 498     if( p_btnMute )  XDestroyImage( p_btnMute );
 499     if( p_btnUnmute ) XDestroyImage( p_btnUnmute );
 500
 501     p_btnPlay = NULL;
 502     p_btnPause = NULL;
 503     p_btnStop = NULL;
 504     p_timeline = NULL;
 505     p_btnTime = NULL;
 506     p_btnFullscreen = NULL;
 507     p_btnMute = NULL;
 508     p_btnUnmute = NULL;
 509 }
 510
 511 void VlcPlugin::redrawToolbar()
 512 {
 513     libvlc_media_player_t *p_md = NULL;
 514     libvlc_exception_t ex;
 515     float f_position = 0.0;
 516     int i_playing = 0;
 517     bool b_mute = false;
 518     unsigned int dst_x, dst_y;
 519     GC gc;
 520     XGCValues gcv;
 521 #define BTN_SPACE ((unsigned int)4)
 522
 523     const NPWindow& window = getWindow();
 524     Window control = getControlWindow();
 525     Display *p_display = ((NPSetWindowCallbackStruct *)window.ws_info)->display;
 526
 527     /* get media instance */
 528     libvlc_exception_init( &ex );
 529     p_md = libvlc_playlist_get_media_player( getVLC(), &ex );
 530     libvlc_exception_clear( &ex );
 531
 532     /* get isplaying */
 533     libvlc_exception_init( &ex );
 534     i_playing = libvlc_playlist_isplaying( getVLC(), &ex );
 535     libvlc_exception_clear( &ex );
 536
 537     /* get mute info */
 538     libvlc_exception_init(&ex);
 539     b_mute = libvlc_audio_get_mute( getVLC(), &ex );
 540     libvlc_exception_clear( &ex );
 541
 542     /* get movie position in % */
 543     if( i_playing == 1 )
 544     {
 545         libvlc_exception_init( &ex );
 546         f_position = libvlc_media_player_get_position( p_md, &ex ) * 100;
 547         libvlc_exception_clear( &ex );
 548     }
 549     libvlc_media_player_release( p_md );
 550
 551     gcv.foreground = BlackPixel( p_display, 0 );
 552     gc = XCreateGC( p_display, control, GCForeground, &gcv );
 553
 554     XFillRectangle( p_display, control, gc,
 555                     0, 0, window.width, i_tb_height );
 556     gcv.foreground = WhitePixel( p_display, 0 );
 557     XChangeGC( p_display, gc, GCForeground, &gcv );
 558
 559     /* position icons */
 560     dst_x = 4; dst_y = 4;
 561
 562     fprintf( stderr, ">>>>>> is playing = %d\n", i_playing );
 563     if( p_btnPause && (i_playing == 1) )
 564     {
 565         XPutImage( p_display, control, gc, p_btnPause, 0, 0, dst_x, dst_y,
 566                    p_btnPause->width, p_btnPause->height );
 567     }
 568     else if( p_btnPlay )
 569     {
 570         XPutImage( p_display, control, gc, p_btnPlay, 0, 0, dst_x, dst_y,
 571                    p_btnPlay->width, p_btnPlay->height );
 572     }
 573
 574     dst_x += BTN_SPACE + ( p_btnPlay ? p_btnPlay->width : 0 );
 575     dst_y = 4;
 576
 577     if( p_btnStop )
 578         XPutImage( p_display, control, gc, p_btnStop, 0, 0, dst_x, dst_y,
 579                    p_btnStop->width, p_btnStop->height );
 580
 581     dst_x += BTN_SPACE + ( p_btnStop ? p_btnStop->width : 0 );
 582     dst_y = 4;
 583
 584     if( p_btnFullscreen )
 585         XPutImage( p_display, control, gc, p_btnFullscreen, 0, 0, dst_x, dst_y,
 586                    p_btnFullscreen->width, p_btnFullscreen->height );
 587
 588     dst_x += BTN_SPACE + ( p_btnFullscreen ? p_btnFullscreen->width : 0 );
 589     dst_y = 4;
 590
 591     if( p_btnUnmute && b_mute )
 592     {
 593         XPutImage( p_display, control, gc, p_btnUnmute, 0, 0, dst_x, dst_y,
 594                    p_btnUnmute->width, p_btnUnmute->height );
 595
 596         dst_x += BTN_SPACE + ( p_btnUnmute ? p_btnUnmute->width : 0 );
 597         dst_y = 4;
 598     }
 599     else if( p_btnMute )
 600     {
 601         XPutImage( p_display, control, gc, p_btnMute, 0, 0, dst_x, dst_y,
 602                    p_btnMute->width, p_btnMute->height );
 603
 604         dst_x += BTN_SPACE + ( p_btnMute ? p_btnMute->width : 0 );
 605         dst_y = 4;
 606     }
 607
 608     if( p_timeline )
 609         XPutImage( p_display, control, gc, p_timeline, 0, 0, dst_x, dst_y,
 610                    (window.width-(dst_x+BTN_SPACE)), p_timeline->height );
 611
 612     if( f_position > 0 )
 613         i_last_position = (((float)window.width-8.0)/100.0)*f_position;
 614
 615     if( p_btnTime )
 616         XPutImage( p_display, control, gc, p_btnTime,
 617                    0, 0, (dst_x+i_last_position), dst_y,
 618                    p_btnTime->width, p_btnTime->height );
 619
 620     XFreeGC( p_display, gc );
 621 }
 622 #endif