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
 176     libvlc_exception_t ex;
 177     libvlc_exception_init(&ex);
 178
 179     libvlc_instance = libvlc_new(ppsz_argc, ppsz_argv, &ex);
 180     if( libvlc_exception_raised(&ex) )
 181     {
 182         libvlc_exception_clear(&ex);
 183         return NPERR_GENERIC_ERROR;
 184     }
 185
 186     /*
 187     ** fetch plugin base URL, which is the URL of the page containing the plugin
 188     ** this URL is used for making absolute URL from relative URL that may be
 189     ** passed as an MRL argument
 190     */
 191     NPObject *plugin;
 192
 193     if( NPERR_NO_ERROR == NPN_GetValue(p_browser, NPNVWindowNPObject, &plugin) )
 194     {
 195         /*
 196         ** is there a better way to get that info ?
 197         */
 198         static const char docLocHref[] = "document.location.href";
 199         NPString script;
 200         NPVariant result;
 201
 202         script.utf8characters = docLocHref;
 203         script.utf8length = sizeof(docLocHref)-1;
 204
 205         if( NPN_Evaluate(p_browser, plugin, &script, &result) )
 206         {
 207             if( NPVARIANT_IS_STRING(result) )
 208             {
 209                 NPString &location = NPVARIANT_TO_STRING(result);
 210
 211                 psz_baseURL = new char[location.utf8length+1];
 212                 if( psz_baseURL )
 213                 {
 214                     strncpy(psz_baseURL, location.utf8characters, location.utf8length);
 215                     psz_baseURL[location.utf8length] = '\0';
 216                 }
 217             }
 218             NPN_ReleaseVariantValue(&result);
 219         }
 220         NPN_ReleaseObject(plugin);
 221     }
 222
 223     if( psz_target )
 224     {
 225         // get absolute URL from src
 226         char *psz_absurl = getAbsoluteURL(psz_target);
 227         psz_target = psz_absurl ? psz_absurl : strdup(psz_target);
 228     }
 229
 230     /* assign plugin script root class */
 231     /* new APIs */
 232     p_scriptClass = RuntimeNPClass<LibvlcRootNPObject>::getClass();
 233
 234     return NPERR_NO_ERROR;
 235 }
 236
 237 VlcPlugin::~VlcPlugin()
 238 {
 239     delete psz_baseURL;
 240     delete psz_target;
 241     if( libvlc_log )
 242         libvlc_log_close(libvlc_log, NULL);
 243     if( libvlc_instance )
 244         libvlc_release(libvlc_instance);
 245 }
 246
 247 /*****************************************************************************
 248  * VlcPlugin methods
 249  *****************************************************************************/
 250
 251 char *VlcPlugin::getAbsoluteURL(const char *url)
 252 {
 253     if( NULL != url )
 254     {
 255         // check whether URL is already absolute
 256         const char *end=strchr(url, ':');
 257         if( (NULL != end) && (end != url) )
 258         {
 259             // validate protocol header
 260             const char *start = url;
 261             char c = *start;
 262             if( isalpha(c) )
 263             {
 264                 ++start;
 265                 while( start != end )
 266                 {
 267                     c  = *start;
 268                     if( ! (isalnum(c)
 269                        || ('-' == c)
 270                        || ('+' == c)
 271                        || ('.' == c)
 272                        || ('/' == c)) ) /* VLC uses / to allow user to specify a demuxer */
 273                         // not valid protocol header, assume relative URL
 274                         goto relativeurl;
 275                     ++start;
 276                 }
 277                 /* we have a protocol header, therefore URL is absolute */
 278                 return strdup(url);
 279             }
 280             // not a valid protocol header, assume relative URL
 281         }
 282
 283 relativeurl:
 284
 285         if( psz_baseURL )
 286         {
 287             size_t baseLen = strlen(psz_baseURL);
 288             char *href = new char[baseLen+strlen(url)+1];
 289             if( href )
 290             {
 291                 /* prepend base URL */
 292                 strcpy(href, psz_baseURL);
 293
 294                 /*
 295                 ** relative url could be empty,
 296                 ** in which case return base URL
 297                 */
 298                 if( '\0' == *url )
 299                     return href;
 300
 301                 /*
 302                 ** locate pathname part of base URL
 303                 */
 304
 305                 /* skip over protocol part  */
 306                 char *pathstart = strchr(href, ':');
 307                 char *pathend;
 308                 if( pathstart )
 309                 {
 310                     if( '/' == *(++pathstart) )
 311                     {
 312                         if( '/' == *(++pathstart) )
 313                         {
 314                             ++pathstart;
 315                         }
 316                     }
 317                     /* skip over host part */
 318                     pathstart = strchr(pathstart, '/');
 319                     pathend = href+baseLen;
 320                     if( ! pathstart )
 321                     {
 322                         // no path, add a / past end of url (over '\0')
 323                         pathstart = pathend;
 324                         *pathstart = '/';
 325                     }
 326                 }
 327                 else
 328                 {
 329                     /* baseURL is just a UNIX path */
 330                     if( '/' != *href )
 331                     {
 332                         /* baseURL is not an absolute path */
 333                         return NULL;
 334                     }
 335                     pathstart = href;
 336                     pathend = href+baseLen;
 337                 }
 338
 339                 /* relative URL made of an absolute path ? */
 340                 if( '/' == *url )
 341                 {
 342                     /* replace path completely */
 343                     strcpy(pathstart, url);
 344                     return href;
 345                 }
 346
 347                 /* find last path component and replace it */
 348                 while( '/' != *pathend)
 349                     --pathend;
 350
 351                 /*
 352                 ** if relative url path starts with one or more '../',
 353                 ** factor them out of href so that we return a
 354                 ** normalized URL
 355                 */
 356                 while( pathend != pathstart )
 357                 {
 358                     const char *p = url;
 359                     if( '.' != *p )
 360                         break;
 361                     ++p;
 362                     if( '\0' == *p  )
 363                     {
 364                         /* relative url is just '.' */
 365                         url = p;
 366                         break;
 367                     }
 368                     if( '/' == *p  )
 369                     {
 370                         /* relative url starts with './' */
 371                         url = ++p;
 372                         continue;
 373                     }
 374                     if( '.' != *p )
 375                         break;
 376                     ++p;
 377                     if( '\0' == *p )
 378                     {
 379                         /* relative url is '..' */
 380                     }
 381                     else
 382                     {
 383                         if( '/' != *p )
 384                             break;
 385                         /* relative url starts with '../' */
 386                         ++p;
 387                     }
 388                     url = p;
 389                     do
 390                     {
 391                         --pathend;
 392                     }
 393                     while( '/' != *pathend );
 394                 }
 395                 /* skip over '/' separator */
 396                 ++pathend;
 397                 /* concatenate remaining base URL and relative URL */
 398                 strcpy(pathend, url);
 399             }
 400             return href;
 401         }
 402     }
 403     return NULL;
 404 }
 405
 406 #if XP_UNIX
 407 int  VlcPlugin::setSize(unsigned width, unsigned height)
 408 {
 409     int diff = (width != i_width) || (height != i_height);
 410
 411     i_width = width;
 412     i_height = height;
 413
 414     /* return size */
 415     return diff;
 416 }
 417
 418 void VlcPlugin::showToolbar()
 419 {
 420     const NPWindow& window = getWindow();
 421     Window control = getControlWindow();
 422     Display *p_display = ((NPSetWindowCallbackStruct *)window.ws_info)->display;
 423     unsigned int i_height = 0, i_width = 0;
 424
 425     /* load icons */
 426     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/play.xpm",
 427                         &p_btnPlay, NULL, NULL);
 428     if( p_btnPlay )
 429     {
 430         i_height = __MAX( i_height, p_btnPlay->height );
 431         i_width  = __MAX( i_width,  p_btnPlay->width );
 432     }
 433     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/pause.xpm",
 434                         &p_btnPause, NULL, NULL);
 435     if( p_btnPause )
 436     {
 437         i_height = __MAX( i_height, p_btnPause->height );
 438         i_width  = __MAX( i_width,  p_btnPause->width );
 439     }
 440     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/stop.xpm",
 441                         &p_btnStop, NULL, NULL );
 442     if( p_btnStop )
 443     {
 444         i_height = __MAX( i_height, p_btnStop->height );
 445         i_width  = __MAX( i_width,  p_btnStop->width );
 446     }
 447     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/time_line.xpm",
 448                         &p_timeline, NULL, NULL);
 449     if( p_timeline )
 450     {
 451         i_height = __MAX( i_height, p_timeline->height );
 452         i_width  = __MAX( i_width,  p_timeline->width );
 453     }
 454     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/time_icon.xpm",
 455                         &p_btnTime, NULL, NULL);
 456     if( p_btnTime )
 457     {
 458         i_height = __MAX( i_height, p_btnTime->height );
 459         i_width  = __MAX( i_width,  p_btnTime->width );
 460     }
 461     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/fullscreen.xpm",
 462                         &p_btnFullscreen, NULL, NULL);
 463     if( p_btnFullscreen )
 464     {
 465         i_height = __MAX( i_height, p_btnFullscreen->height );
 466         i_width  = __MAX( i_width,  p_btnFullscreen->width );
 467     }
 468     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/volume_max.xpm",
 469                         &p_btnMute, NULL, NULL);
 470     if( p_btnMute )
 471     {
 472         i_height = __MAX( i_height, p_btnMute->height );
 473         i_width  = __MAX( i_width,  p_btnMute->width );
 474     }
 475     XpmReadFileToImage( p_display, DATA_PATH "/mozilla/volume_mute.xpm",
 476                         &p_btnUnmute, NULL, NULL);
 477     if( p_btnUnmute )
 478     {
 479         i_height = __MAX( i_height, p_btnUnmute->height );
 480         i_width  = __MAX( i_width,  p_btnUnmute->width );
 481     }
 482     setToolbarSize( i_width, i_height );
 483
 484     if( !p_btnPlay || !p_btnPause || !p_btnStop || !p_timeline ||
 485         !p_btnTime || !p_btnFullscreen || !p_btnMute || !p_btnUnmute )
 486         fprintf(stderr, "Error: some button images not found in %s\n", DATA_PATH );
 487 }
 488
 489 void VlcPlugin::hideToolbar()
 490 {
 491     i_tb_width = i_tb_height = 0;
 492
 493     if( p_btnPlay )  XDestroyImage( p_btnPlay );
 494     if( p_btnPause ) XDestroyImage( p_btnPause );
 495     if( p_btnStop )  XDestroyImage( p_btnStop );
 496     if( p_timeline ) XDestroyImage( p_timeline );
 497     if( p_btnTime )  XDestroyImage( p_btnTime );
 498     if( p_btnFullscreen ) XDestroyImage( p_btnFullscreen );
 499     if( p_btnMute )  XDestroyImage( p_btnMute );
 500     if( p_btnUnmute ) XDestroyImage( p_btnUnmute );
 501
 502     p_btnPlay = NULL;
 503     p_btnPause = NULL;
 504     p_btnStop = NULL;
 505     p_timeline = NULL;
 506     p_btnTime = NULL;
 507     p_btnFullscreen = NULL;
 508     p_btnMute = NULL;
 509     p_btnUnmute = NULL;
 510 }
 511
 512 void VlcPlugin::redrawToolbar()
 513 {
 514     libvlc_media_player_t *p_md = NULL;
 515     libvlc_exception_t ex;
 516     float f_position = 0.0;
 517     int i_playing = 0;
 518     bool b_mute = false;
 519     unsigned int dst_x, dst_y;
 520     GC gc;
 521     XGCValues gcv;
 522 #define BTN_SPACE ((unsigned int)4)
 523
 524     const NPWindow& window = getWindow();
 525     Window control = getControlWindow();
 526     Display *p_display = ((NPSetWindowCallbackStruct *)window.ws_info)->display;
 527
 528     /* get media instance */
 529     libvlc_exception_init( &ex );
 530     p_md = libvlc_playlist_get_media_player( getVLC(), &ex );
 531     libvlc_exception_clear( &ex );
 532
 533     /* get isplaying */
 534     libvlc_exception_init( &ex );
 535     i_playing = libvlc_playlist_isplaying( getVLC(), &ex );
 536     libvlc_exception_clear( &ex );
 537
 538     /* get mute info */
 539     libvlc_exception_init(&ex);
 540     b_mute = libvlc_audio_get_mute( getVLC(), &ex );
 541     libvlc_exception_clear( &ex );
 542
 543     /* get movie position in % */
 544     if( i_playing == 1 )
 545     {
 546         libvlc_exception_init( &ex );
 547         f_position = libvlc_media_player_get_position( p_md, &ex ) * 100;
 548         libvlc_exception_clear( &ex );
 549     }
 550     libvlc_media_player_release( p_md );
 551
 552     gcv.foreground = BlackPixel( p_display, 0 );
 553     gc = XCreateGC( p_display, control, GCForeground, &gcv );
 554
 555     XFillRectangle( p_display, control, gc,
 556                     0, 0, window.width, i_tb_height );
 557     gcv.foreground = WhitePixel( p_display, 0 );
 558     XChangeGC( p_display, gc, GCForeground, &gcv );
 559
 560     /* position icons */
 561     dst_x = 4; dst_y = 4;
 562
 563     fprintf( stderr, ">>>>>> is playing = %d\n", i_playing );
 564     if( p_btnPause && (i_playing == 1) )
 565     {
 566         XPutImage( p_display, control, gc, p_btnPause, 0, 0, dst_x, dst_y,
 567                    p_btnPause->width, p_btnPause->height );
 568     }
 569     else if( p_btnPlay )
 570     {
 571         XPutImage( p_display, control, gc, p_btnPlay, 0, 0, dst_x, dst_y,
 572                    p_btnPlay->width, p_btnPlay->height );
 573     }
 574
 575     dst_x += BTN_SPACE + ( p_btnPlay ? p_btnPlay->width : 0 );
 576     dst_y = 4;
 577
 578     if( p_btnStop )
 579         XPutImage( p_display, control, gc, p_btnStop, 0, 0, dst_x, dst_y,
 580                    p_btnStop->width, p_btnStop->height );
 581
 582     dst_x += BTN_SPACE + ( p_btnStop ? p_btnStop->width : 0 );
 583     dst_y = 4;
 584
 585     if( p_btnFullscreen )
 586         XPutImage( p_display, control, gc, p_btnFullscreen, 0, 0, dst_x, dst_y,
 587                    p_btnFullscreen->width, p_btnFullscreen->height );
 588
 589     dst_x += BTN_SPACE + ( p_btnFullscreen ? p_btnFullscreen->width : 0 );
 590     dst_y = 4;
 591
 592     if( p_btnUnmute && b_mute )
 593     {
 594         XPutImage( p_display, control, gc, p_btnUnmute, 0, 0, dst_x, dst_y,
 595                    p_btnUnmute->width, p_btnUnmute->height );
 596
 597         dst_x += BTN_SPACE + ( p_btnUnmute ? p_btnUnmute->width : 0 );
 598         dst_y = 4;
 599     }
 600     else if( p_btnMute )
 601     {
 602         XPutImage( p_display, control, gc, p_btnMute, 0, 0, dst_x, dst_y,
 603                    p_btnMute->width, p_btnMute->height );
 604
 605         dst_x += BTN_SPACE + ( p_btnMute ? p_btnMute->width : 0 );
 606         dst_y = 4;
 607     }
 608
 609     if( p_timeline )
 610         XPutImage( p_display, control, gc, p_timeline, 0, 0, dst_x, dst_y,
 611                    (window.width-(dst_x+BTN_SPACE)), p_timeline->height );
 612
 613     if( f_position > 0 )
 614         i_last_position = (((float)window.width-8.0)/100.0)*f_position;
 615
 616     if( p_btnTime )
 617         XPutImage( p_display, control, gc, p_btnTime,
 618                    0, 0, (dst_x+i_last_position), dst_y,
 619                    p_btnTime->width, p_btnTime->height );
 620
 621     XFreeGC( p_display, gc );
 622 }
 623 #endif