modules/gui/qt/input_manager.cpp

   1 /*****************************************************************************
   2  * input_manager.cpp : Manage an input and interact with its GUI elements
   3  ****************************************************************************
   4  * Copyright (C) 2006-2008 the VideoLAN team
   5  *
   6  * Authors: Clément Stenac <zorglub@videolan.org>
   7  *          Ilkka Ollakka  <ileoo@videolan.org>
   8  *          Jean-Baptiste <jb@videolan.org>
   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 #ifdef HAVE_CONFIG_H
  26 # include "config.h"
  27 #endif
  28
  29 #include "input_manager.hpp"
  30 #include "recents.hpp"
  31
  32 #include <vlc_actions.h>           /* ACTION_ID */
  33 #include <vlc_url.h>            /* vlc_uri_decode */
  34 #include <vlc_strings.h>        /* vlc_strfinput */
  35 #include <vlc_aout.h>           /* audio_output_t */
  36
  37 #include <QApplication>
  38 #include <QFile>
  39 #include <QDir>
  40 #include <QSignalMapper>
  41 #include <QMessageBox>
  42
  43 #include <assert.h>
  44
  45 static int InputEvent( vlc_object_t *, const char *,
  46                        vlc_value_t, vlc_value_t, void * );
  47 static int VbiEvent( vlc_object_t *, const char *,
  48                      vlc_value_t, vlc_value_t, void * );
  49
  50 /* Ensure arbitratry (not dynamically allocated) event IDs are not in use */
  51 static inline void registerAndCheckEventIds( int start, int end )
  52 {
  53     for ( int i=start ; i<=end ; i++ )
  54         Q_ASSERT( QEvent::registerEventType( i ) == i ); /* event ID collision ! */
  55 }
  56
  57 /**********************************************************************
  58  * InputManager implementation
  59  **********************************************************************
  60  * The Input Manager can be the main one around the playlist
  61  * But can also be used for VLM dialog or similar
  62  **********************************************************************/
  63
  64 InputManager::InputManager( MainInputManager *mim, intf_thread_t *_p_intf) :
  65                            QObject( mim ), p_intf( _p_intf )
  66 {
  67     p_mim        = mim;
  68     i_old_playing_status = END_S;
  69     oldName      = "";
  70     artUrl       = "";
  71     p_input      = NULL;
  72     p_input_vbi  = NULL;
  73     f_rate       = 0.;
  74     p_item       = NULL;
  75     b_video      = false;
  76     timeA        = VLC_TICK_INVALID;
  77     timeB        = VLC_TICK_INVALID;
  78     f_cache      = -1.; /* impossible initial value, different from all */
  79     registerAndCheckEventIds( IMEvent::PositionUpdate, IMEvent::FullscreenControlPlanHide );
  80     registerAndCheckEventIds( PLEvent::PLItemAppended, PLEvent::PLEmpty );
  81 }
  82
  83 InputManager::~InputManager()
  84 {
  85     delInput();
  86 }
  87
  88 void InputManager::inputChangedHandler()
  89 {
  90     setInput( p_mim->getInput() );
  91 }
  92
  93 /* Define the Input used.
  94    Add the callbacks on input
  95    p_input is held once here */
  96 void InputManager::setInput( input_thread_t *_p_input )
  97 {
  98     delInput();
  99     p_input = _p_input;
 100     if( p_input != NULL )
 101     {
 102         msg_Dbg( p_intf, "IM: Setting an input" );
 103         vlc_object_hold( p_input );
 104         addCallbacks();
 105
 106         UpdateStatus();
 107         UpdateName();
 108         UpdateArt();
 109         UpdateTeletext();
 110         UpdateNavigation();
 111         UpdateVout();
 112
 113         p_item = input_GetItem( p_input );
 114         emit rateChanged( var_GetFloat( p_input, "rate" ) );
 115
 116         /* Get Saved Time */
 117         if( p_item->i_type == ITEM_TYPE_FILE )
 118         {
 119             char *uri = input_item_GetURI( p_item );
 120
 121             vlc_tick_t i_time = RecentsMRL::getInstance( p_intf )->time( qfu(uri) );
 122             if( i_time > 0 && qfu( uri ) != lastURI &&
 123                     !var_GetFloat( p_input, "run-time" ) &&
 124                     !var_GetFloat( p_input, "start-time" ) &&
 125                     !var_GetFloat( p_input, "stop-time" ) )
 126             {
 127                 emit resumePlayback( i_time );
 128             }
 129             playlist_Lock( THEPL );
 130             // Add root items only
 131             playlist_item_t* p_node = playlist_CurrentPlayingItem( THEPL );
 132             if ( p_node != NULL && p_node->p_parent != NULL && p_node->p_parent->i_id == THEPL->p_playing->i_id )
 133             {
 134                 // Save the latest URI to avoid asking to restore the
 135                 // position on the same input file.
 136                 lastURI = qfu( uri );
 137                 RecentsMRL::getInstance( p_intf )->addRecent( lastURI );
 138             }
 139             playlist_Unlock( THEPL );
 140             free( uri );
 141         }
 142     }
 143     else
 144     {
 145         p_item = NULL;
 146         lastURI.clear();
 147         assert( !p_input_vbi );
 148         emit rateChanged( var_InheritFloat( p_intf, "rate" ) );
 149     }
 150 }
 151
 152 /* delete Input if it ever existed.
 153    Delete the callbacls on input
 154    p_input is released once here */
 155 void InputManager::delInput()
 156 {
 157     if( !p_input ) return;
 158     msg_Dbg( p_intf, "IM: Deleting the input" );
 159
 160     /* Save time / position */
 161     char *uri = input_item_GetURI( p_item );
 162     if( uri != NULL ) {
 163         float f_pos = var_GetFloat( p_input , "position" );
 164         vlc_tick_t i_time = -1;
 165
 166         if( f_pos >= 0.05f && f_pos <= 0.95f
 167          && var_GetInteger( p_input, "length" ) >= VLC_TICK_FROM_SEC(60))
 168             i_time = var_GetInteger( p_input, "time");
 169
 170         RecentsMRL::getInstance( p_intf )->setTime( qfu(uri), i_time );
 171         free(uri);
 172     }
 173
 174     delCallbacks();
 175     i_old_playing_status = END_S;
 176     p_item               = NULL;
 177     oldName              = "";
 178     artUrl               = "";
 179     b_video              = false;
 180     timeA                = VLC_TICK_INVALID;
 181     timeB                = VLC_TICK_INVALID;
 182     f_rate               = 0. ;
 183
 184     if( p_input_vbi )
 185     {
 186         vlc_object_release( p_input_vbi );
 187         p_input_vbi = NULL;
 188     }
 189
 190     vlc_object_release( p_input );
 191     p_input = NULL;
 192
 193     emit positionUpdated( -1.0, 0 ,0 );
 194     emit rateChanged( var_InheritFloat( p_intf, "rate" ) );
 195     emit nameChanged( "" );
 196     emit chapterChanged( 0 );
 197     emit titleChanged( 0 );
 198     emit playingStatusChanged( END_S );
 199
 200     emit teletextPossible( false );
 201     emit AtoBchanged( false, false );
 202     emit voutChanged( false );
 203     emit voutListChanged( NULL, 0 );
 204
 205     /* Reset all InfoPanels but stats */
 206     emit artChanged( NULL );
 207     emit artChanged( "" );
 208     emit infoChanged( NULL );
 209     emit currentMetaChanged( (input_item_t *)NULL );
 210
 211     emit encryptionChanged( false );
 212     emit recordingStateChanged( false );
 213
 214     emit cachingChanged( 0.0 );
 215 }
 216
 217 /* Convert the event from the callbacks in actions */
 218 void InputManager::customEvent( QEvent *event )
 219 {
 220     int i_type = event->type();
 221     IMEvent *ple = static_cast<IMEvent *>(event);
 222
 223     if( i_type == IMEvent::ItemChanged )
 224         UpdateMeta( ple->item() );
 225
 226     if( !hasInput() )
 227         return;
 228
 229     /* Actions */
 230     switch( i_type )
 231     {
 232     case IMEvent::CapabilitiesChanged:
 233         UpdateCapabilities();
 234         break;
 235     case IMEvent::PositionUpdate:
 236         UpdatePosition();
 237         break;
 238     case IMEvent::StatisticsUpdate:
 239         UpdateStats();
 240         break;
 241     case IMEvent::ItemChanged:
 242         /* Ignore ItemChanged_Type event that does not apply to our input */
 243         if( p_item == ple->item() )
 244         {
 245             UpdateStatus();
 246             UpdateName();
 247             UpdateArt();
 248             UpdateMeta();
 249             /* Update duration of file */
 250         }
 251         break;
 252     case IMEvent::ItemStateChanged:
 253         UpdateStatus();
 254         break;
 255     case IMEvent::MetaChanged:
 256         UpdateMeta();
 257         UpdateName(); /* Needed for NowPlaying */
 258         UpdateArt(); /* Art is part of meta in the core */
 259         break;
 260     case IMEvent::InfoChanged:
 261         UpdateInfo();
 262         break;
 263     case IMEvent::ItemTitleChanged:
 264         UpdateNavigation();
 265         UpdateName(); /* Display the name of the Chapter, if exists */
 266         break;
 267     case IMEvent::ItemRateChanged:
 268         UpdateRate();
 269         break;
 270     case IMEvent::ItemEsChanged:
 271         UpdateTeletext();
 272         break;
 273     case IMEvent::InterfaceVoutUpdate:
 274         UpdateVout();
 275         break;
 276     case IMEvent::SynchroChanged:
 277         emit synchroChanged();
 278         break;
 279     case IMEvent::CachingEvent:
 280         UpdateCaching();
 281         break;
 282     case IMEvent::BookmarksChanged:
 283         emit bookmarksChanged();
 284         break;
 285     case IMEvent::RecordingEvent:
 286         UpdateRecord();
 287         break;
 288     case IMEvent::ProgramChanged:
 289         UpdateProgramEvent();
 290         break;
 291     case IMEvent::EPGEvent:
 292         UpdateEPG();
 293         break;
 294     default:
 295         msg_Warn( p_intf, "This shouldn't happen: %i", i_type );
 296         vlc_assert_unreachable();
 297     }
 298 }
 299
 300 /* Add the callbacks on Input. Self explanatory */
 301 inline void InputManager::addCallbacks()
 302 {
 303     var_AddCallback( p_input, "intf-event", InputEvent, this );
 304 }
 305
 306 /* Delete the callbacks on Input. Self explanatory */
 307 inline void InputManager::delCallbacks()
 308 {
 309     var_DelCallback( p_input, "intf-event", InputEvent, this );
 310 }
 311
 312 /* Static callbacks for IM */
 313 int MainInputManager::ItemChanged( vlc_object_t *, const char *,
 314                                    vlc_value_t, vlc_value_t val, void *param )
 315 {
 316     InputManager *im = (InputManager*)param;
 317     input_item_t *p_item = static_cast<input_item_t *>(val.p_address);
 318
 319     IMEvent *event = new IMEvent( IMEvent::ItemChanged, p_item );
 320     QApplication::postEvent( im, event );
 321     return VLC_SUCCESS;
 322 }
 323
 324 static int InputEvent( vlc_object_t *, const char *,
 325                        vlc_value_t, vlc_value_t newval, void *param )
 326 {
 327     InputManager *im = (InputManager*)param;
 328     IMEvent *event;
 329
 330     switch( newval.i_int )
 331     {
 332     case INPUT_EVENT_STATE:
 333         event = new IMEvent( IMEvent::ItemStateChanged );
 334         break;
 335     case INPUT_EVENT_RATE:
 336         event = new IMEvent( IMEvent::ItemRateChanged );
 337         break;
 338     case INPUT_EVENT_CAPABILITIES:
 339         event = new IMEvent( IMEvent::CapabilitiesChanged );
 340         break;
 341     case INPUT_EVENT_POSITION:
 342     //case INPUT_EVENT_LENGTH:
 343         event = new IMEvent( IMEvent::PositionUpdate );
 344         break;
 345
 346     case INPUT_EVENT_TITLE:
 347     case INPUT_EVENT_CHAPTER:
 348         event = new IMEvent( IMEvent::ItemTitleChanged );
 349         break;
 350
 351     case INPUT_EVENT_ES:
 352         event = new IMEvent( IMEvent::ItemEsChanged );
 353         break;
 354
 355     case INPUT_EVENT_STATISTICS:
 356         event = new IMEvent( IMEvent::StatisticsUpdate );
 357         break;
 358
 359     case INPUT_EVENT_VOUT:
 360         event = new IMEvent( IMEvent::InterfaceVoutUpdate );
 361         break;
 362
 363     case INPUT_EVENT_ITEM_META: /* Codec MetaData + Art */
 364         event = new IMEvent( IMEvent::MetaChanged );
 365         break;
 366     case INPUT_EVENT_ITEM_INFO: /* Codec Info */
 367         event = new IMEvent( IMEvent::InfoChanged );
 368         break;
 369
 370     case INPUT_EVENT_AUDIO_DELAY:
 371     case INPUT_EVENT_SUBTITLE_DELAY:
 372         event = new IMEvent( IMEvent::SynchroChanged );
 373         break;
 374
 375     case INPUT_EVENT_CACHE:
 376         event = new IMEvent( IMEvent::CachingEvent );
 377         break;
 378
 379     case INPUT_EVENT_BOOKMARK:
 380         event = new IMEvent( IMEvent::BookmarksChanged );
 381         break;
 382
 383     case INPUT_EVENT_RECORD:
 384         event = new IMEvent( IMEvent::RecordingEvent );
 385         break;
 386
 387     case INPUT_EVENT_PROGRAM:
 388         /* This is for PID changes */
 389         event = new IMEvent( IMEvent::ProgramChanged );
 390         break;
 391
 392     case INPUT_EVENT_ITEM_EPG:
 393         /* EPG data changed */
 394         event = new IMEvent( IMEvent::EPGEvent );
 395         break;
 396
 397     case INPUT_EVENT_SIGNAL:
 398         /* This is for capture-card signals */
 399         /* event = new IMEvent( SignalChanged_Type );
 400         break; */
 401     default:
 402         event = NULL;
 403         break;
 404     }
 405
 406     if( event )
 407         QApplication::postEvent( im, event );
 408     return VLC_SUCCESS;
 409 }
 410
 411 static int VbiEvent( vlc_object_t *, const char *,
 412                      vlc_value_t, vlc_value_t, void *param )
 413 {
 414     InputManager *im = (InputManager*)param;
 415     IMEvent *event = new IMEvent( IMEvent::ItemEsChanged );
 416
 417     QApplication::postEvent( im, event );
 418     return VLC_SUCCESS;
 419 }
 420
 421 void InputManager::UpdatePosition()
 422 {
 423     /* Update position */
 424     vlc_tick_t i_length = var_GetInteger(  p_input , "length" );
 425     vlc_tick_t i_time = var_GetInteger(  p_input , "time");
 426     float f_pos = var_GetFloat(  p_input , "position" );
 427     emit positionUpdated( f_pos, i_time, SEC_FROM_VLC_TICK(i_length) );
 428 }
 429
 430 void InputManager::UpdateNavigation()
 431 {
 432     /* Update navigation status */
 433     size_t ntitles, nchapters;
 434
 435     var_Change( p_input, "title", VLC_VAR_CHOICESCOUNT, &ntitles );
 436
 437     if( ntitles > 0 )
 438     {
 439         bool b_menu = false;
 440         if( ntitles > 1 )
 441         {
 442             input_title_t **pp_title = NULL;
 443             int i_title = 0;
 444             if( input_Control( p_input, INPUT_GET_FULL_TITLE_INFO, &pp_title, &i_title ) == VLC_SUCCESS )
 445             {
 446                 for( int i = 0; i < i_title; i++ )
 447                 {
 448                     if( pp_title[i]->i_flags & INPUT_TITLE_MENU )
 449                         b_menu = true;
 450                     vlc_input_title_Delete(pp_title[i]);
 451                 }
 452                 free( pp_title );
 453             }
 454         }
 455
 456         /* p_input != NULL since val.i_int != 0 */
 457         var_Change( p_input, "chapter", VLC_VAR_CHOICESCOUNT, &nchapters );
 458
 459         emit titleChanged( b_menu );
 460         emit chapterChanged( nchapters > 1 );
 461     }
 462     else
 463         emit chapterChanged( false );
 464
 465     if( hasInput() )
 466         emit inputCanSeek( var_GetBool( p_input, "can-seek" ) );
 467     else
 468         emit inputCanSeek( false );
 469 }
 470
 471 void InputManager::UpdateCapabilities()
 472 {
 473     emit inputCanSeek( var_GetBool( p_input, "can-seek" ) );
 474 }
 475
 476 void InputManager::UpdateStatus()
 477 {
 478     /* Update playing status */
 479     int state = var_GetInteger( p_input, "state" );
 480     if( i_old_playing_status != state )
 481     {
 482         i_old_playing_status = state;
 483         emit playingStatusChanged( state );
 484     }
 485 }
 486
 487 void InputManager::UpdateRate()
 488 {
 489     /* Update Rate */
 490     float f_new_rate = var_GetFloat( p_input, "rate" );
 491     if( f_new_rate != f_rate )
 492     {
 493         f_rate = f_new_rate;
 494         /* Update rate */
 495         emit rateChanged( f_rate );
 496     }
 497 }
 498
 499 void InputManager::UpdateName()
 500 {
 501     /* Update text, name and nowplaying */
 502     QString name;
 503
 504     /* Try to get the nowplaying */
 505     char *format = var_InheritString( p_intf, "input-title-format" );
 506     char *formatted = NULL;
 507     if (format != NULL)
 508     {
 509         formatted = vlc_strfinput( p_input, NULL, format );
 510         free( format );
 511         if( formatted != NULL )
 512         {
 513             name = qfu(formatted);
 514             free( formatted );
 515         }
 516     }
 517
 518     /* If we have Nothing */
 519     if( name.simplified().isEmpty() )
 520     {
 521         char *uri = input_item_GetURI( input_GetItem( p_input ) );
 522         char *file = uri ? strrchr( uri, '/' ) : NULL;
 523         if( file != NULL )
 524         {
 525             vlc_uri_decode( ++file );
 526             name = qfu(file);
 527         }
 528         else
 529             name = qfu(uri);
 530         free( uri );
 531     }
 532
 533     name = name.trimmed();
 534
 535     if( oldName != name )
 536     {
 537         emit nameChanged( name );
 538         oldName = name;
 539     }
 540 }
 541
 542 int InputManager::playingStatus() const
 543 {
 544     return i_old_playing_status;
 545 }
 546
 547 bool InputManager::hasAudio()
 548 {
 549     if( hasInput() )
 550     {
 551         size_t val;
 552         var_Change( p_input, "audio-es", VLC_VAR_CHOICESCOUNT, &val );
 553         return val > 0;
 554     }
 555     return false;
 556 }
 557
 558 bool InputManager::hasVisualisation()
 559 {
 560     if( !p_input )
 561         return false;
 562
 563     audio_output_t *aout = input_GetAout( p_input );
 564     if( !aout )
 565         return false;
 566
 567     char *visual = var_InheritString( aout, "visual" );
 568     vlc_object_release( aout );
 569
 570     if( !visual )
 571         return false;
 572
 573     free( visual );
 574     return true;
 575 }
 576
 577 void InputManager::UpdateTeletext()
 578 {
 579     const bool b_enabled = var_CountChoices( p_input, "teletext-es" ) > 0;
 580     const int i_teletext_es = var_GetInteger( p_input, "teletext-es" );
 581
 582     /* Teletext is possible. Show the buttons */
 583     emit teletextPossible( b_enabled );
 584
 585     /* If Teletext is selected */
 586     if( b_enabled && i_teletext_es >= 0 )
 587     {
 588         /* Then, find the current page */
 589         int i_page = 100;
 590         bool b_transparent = false;
 591
 592         if( p_input_vbi )
 593         {
 594             var_DelCallback( p_input_vbi, "vbi-page", VbiEvent, this );
 595             vlc_object_release( p_input_vbi );
 596         }
 597
 598         if( input_GetEsObjects( p_input, i_teletext_es, &p_input_vbi, NULL, NULL ) )
 599             p_input_vbi = NULL;
 600
 601         if( p_input_vbi )
 602         {
 603             /* This callback is not remove explicitly, but interfaces
 604              * are guaranted to outlive input */
 605             var_AddCallback( p_input_vbi, "vbi-page", VbiEvent, this );
 606
 607             i_page = var_GetInteger( p_input_vbi, "vbi-page" );
 608             b_transparent = !var_GetBool( p_input_vbi, "vbi-opaque" );
 609         }
 610         emit newTelexPageSet( i_page );
 611         emit teletextTransparencyActivated( b_transparent );
 612
 613     }
 614     emit teletextActivated( b_enabled && i_teletext_es >= 0 );
 615 }
 616
 617 void InputManager::UpdateEPG()
 618 {
 619     emit epgChanged();
 620 }
 621
 622 void InputManager::UpdateVout()
 623 {
 624     size_t i_vout;
 625     vout_thread_t **pp_vout;
 626
 627     if( !p_input )
 628         return;
 629
 630     /* Get current vout lists from input */
 631     if( input_Control( p_input, INPUT_GET_VOUTS, &pp_vout, &i_vout ) )
 632     {
 633         i_vout = 0;
 634         pp_vout = NULL;
 635     }
 636
 637     /* */
 638     emit voutListChanged( pp_vout, i_vout );
 639
 640     /* */
 641     bool b_old_video = b_video;
 642     b_video = i_vout > 0;
 643     if( !!b_old_video != !!b_video )
 644         emit voutChanged( b_video );
 645
 646     /* Release the vout list */
 647     for( size_t i = 0; i < i_vout; i++ )
 648         vlc_object_release( (vlc_object_t*)pp_vout[i] );
 649     free( pp_vout );
 650 }
 651
 652 void InputManager::UpdateCaching()
 653 {
 654     float f_newCache = var_GetFloat ( p_input, "cache" );
 655     if( f_newCache != f_cache )
 656     {
 657         f_cache = f_newCache;
 658         /* Update cache */
 659         emit cachingChanged( f_cache );
 660     }
 661 }
 662
 663 void InputManager::requestArtUpdate( input_item_t *p_item, bool b_forced )
 664 {
 665     bool b_current_item = false;
 666     if ( !p_item && hasInput() )
 667     {   /* default to current item */
 668         p_item = input_GetItem( p_input );
 669         b_current_item = true;
 670     }
 671
 672     if ( p_item )
 673     {
 674         /* check if it has already been enqueued */
 675         if ( p_item->p_meta && !b_forced )
 676         {
 677             int status = vlc_meta_GetStatus( p_item->p_meta );
 678             if ( status & ( ITEM_ART_NOTFOUND|ITEM_ART_FETCHED ) )
 679                 return;
 680         }
 681         libvlc_ArtRequest( p_intf->obj.libvlc, p_item,
 682                            (b_forced) ? META_REQUEST_OPTION_SCOPE_ANY
 683                                       : META_REQUEST_OPTION_NONE,
 684                            NULL, NULL );
 685         /* No input will signal the cover art to update,
 686              * let's do it ourself */
 687         if ( b_current_item )
 688             UpdateArt();
 689         else
 690             emit artChanged( p_item );
 691     }
 692 }
 693
 694 const QString InputManager::decodeArtURL( input_item_t *p_item )
 695 {
 696     assert( p_item );
 697
 698     char *psz_art = input_item_GetArtURL( p_item );
 699     if( psz_art )
 700     {
 701         char *psz = vlc_uri2path( psz_art );
 702         free( psz_art );
 703         psz_art = psz;
 704     }
 705
 706 #if 0
 707     /* Taglib seems to define a attachment://, It won't work yet */
 708     url = url.replace( "attachment://", "" );
 709 #endif
 710
 711     QString path = qfu( psz_art ? psz_art : "" );
 712     free( psz_art );
 713     return path;
 714 }
 715
 716 void InputManager::UpdateArt()
 717 {
 718     QString url = decodeArtURL( input_GetItem( p_input ) );
 719
 720     /* the art hasn't changed, no need to update */
 721     if(artUrl == url)
 722         return;
 723
 724     /* Update Art meta */
 725     artUrl = url;
 726     emit artChanged( artUrl );
 727 }
 728
 729 void InputManager::setArt( input_item_t *p_item, QString fileUrl )
 730 {
 731     if( hasInput() )
 732     {
 733         char *psz_cachedir = config_GetUserDir( VLC_CACHE_DIR );
 734         QString old_url = p_mim->getIM()->decodeArtURL( p_item );
 735         old_url = QDir( old_url ).canonicalPath();
 736
 737         if( old_url.startsWith( QString::fromUtf8( psz_cachedir ) ) )
 738             QFile( old_url ).remove(); /* Purge cached artwork */
 739
 740         free( psz_cachedir );
 741
 742         input_item_SetArtURL( p_item , fileUrl.toUtf8().constData() );
 743         UpdateArt();
 744     }
 745 }
 746
 747 inline void InputManager::UpdateStats()
 748 {
 749     emit statisticsUpdated( input_GetItem( p_input ) );
 750 }
 751
 752 inline void InputManager::UpdateMeta( input_item_t *p_item_ )
 753 {
 754     emit metaChanged( p_item_ );
 755     emit artChanged( p_item_ );
 756 }
 757
 758 inline void InputManager::UpdateMeta()
 759 {
 760     emit currentMetaChanged( input_GetItem( p_input ) );
 761 }
 762
 763 inline void InputManager::UpdateInfo()
 764 {
 765     assert( p_input );
 766     emit infoChanged( input_GetItem( p_input ) );
 767 }
 768
 769 void InputManager::UpdateRecord()
 770 {
 771     emit recordingStateChanged( var_GetBool( p_input, "record" ) );
 772 }
 773
 774 void InputManager::UpdateProgramEvent()
 775 {
 776     bool b_scrambled = var_GetBool( p_input, "program-scrambled" );
 777     emit encryptionChanged( b_scrambled );
 778 }
 779
 780 /* User update of the slider */
 781 void InputManager::sliderUpdate( float new_pos )
 782 {
 783     if( hasInput() )
 784         var_SetFloat( p_input, "position", new_pos );
 785     emit seekRequested( new_pos );
 786 }
 787
 788 void InputManager::sectionPrev()
 789 {
 790     if( hasInput() )
 791     {
 792         int i_type = var_Type( p_input, "next-chapter" );
 793         var_TriggerCallback( p_input, (i_type & VLC_VAR_TYPE) != 0 ?
 794                              "prev-chapter":"prev-title" );
 795     }
 796 }
 797
 798 void InputManager::sectionNext()
 799 {
 800     if( hasInput() )
 801     {
 802         int i_type = var_Type( p_input, "next-chapter" );
 803         var_TriggerCallback( p_input, (i_type & VLC_VAR_TYPE) != 0 ?
 804                              "next-chapter":"next-title" );
 805     }
 806 }
 807
 808 void InputManager::sectionMenu()
 809 {
 810     if( hasInput() )
 811     {
 812         var_TriggerCallback( p_input, "menu-title" );
 813     }
 814 }
 815
 816 /*
 817  *  Teletext Functions
 818  */
 819
 820 void InputManager::changeProgram( int program )
 821 {
 822     if( hasInput() )
 823     {
 824         var_SetInteger( p_input, "program", program );
 825     }
 826 }
 827
 828 /* Set a new Teletext Page */
 829 void InputManager::telexSetPage( int page )
 830 {
 831     if( hasInput() && p_input_vbi )
 832     {
 833         const int i_teletext_es = var_GetInteger( p_input, "teletext-es" );
 834
 835         if( i_teletext_es >= 0 )
 836         {
 837             var_SetInteger( p_input_vbi, "vbi-page", page );
 838             emit newTelexPageSet( page );
 839         }
 840     }
 841 }
 842
 843 /* Set the transparency on teletext */
 844 void InputManager::telexSetTransparency( bool b_transparentTelextext )
 845 {
 846     if( hasInput() && p_input_vbi )
 847     {
 848         var_SetBool( p_input_vbi, "vbi-opaque", !b_transparentTelextext );
 849         emit teletextTransparencyActivated( b_transparentTelextext );
 850     }
 851 }
 852
 853 void InputManager::activateTeletext( bool b_enable )
 854 {
 855     vlc_value_t *list;
 856     char **text;
 857     size_t count;
 858
 859     if( hasInput() && !var_Change( p_input, "teletext-es", VLC_VAR_GETCHOICES,
 860                                    &count, &list, &text ) )
 861     {
 862         if( count > 0 )
 863         {   /* Prefer the page 100 if it is present */
 864             int id = list[0].i_int;
 865             for( size_t i = 0; i < count; i++ )
 866             {   /* The description is the page number as a string */
 867                 if( text[i] != NULL && !strcmp( text[i], "100" ) )
 868                     id = list[i].i_int;
 869                 free(text[i]);
 870             }
 871             var_SetInteger( p_input, "spu-es", b_enable ? id : -1 );
 872         }
 873         free(text);
 874         free(list);
 875     }
 876 }
 877
 878 void InputManager::reverse()
 879 {
 880     if( hasInput() )
 881     {
 882         float f_rate_ = var_GetFloat( p_input, "rate" );
 883         var_SetFloat( p_input, "rate", -f_rate_ );
 884     }
 885 }
 886
 887 void InputManager::slower()
 888 {
 889     var_TriggerCallback( THEPL, "rate-slower" );
 890 }
 891
 892 void InputManager::faster()
 893 {
 894     var_TriggerCallback( THEPL, "rate-faster" );
 895 }
 896
 897 void InputManager::littlefaster()
 898 {
 899     var_SetInteger( p_intf->obj.libvlc, "key-action", ACTIONID_RATE_FASTER_FINE );
 900 }
 901
 902 void InputManager::littleslower()
 903 {
 904     var_SetInteger( p_intf->obj.libvlc, "key-action", ACTIONID_RATE_SLOWER_FINE );
 905 }
 906
 907 void InputManager::normalRate()
 908 {
 909     var_SetFloat( THEPL, "rate", 1. );
 910 }
 911
 912 void InputManager::setRate( float new_rate )
 913 {
 914     var_SetFloat( THEPL, "rate", new_rate );
 915 }
 916
 917 void InputManager::jumpFwd()
 918 {
 919     int i_interval = var_InheritInteger( p_input, "short-jump-size" );
 920     if( i_interval > 0 && hasInput() )
 921     {
 922         vlc_tick_t val = vlc_tick_from_sec( i_interval );
 923         var_SetInteger( p_input, "time-offset", val );
 924     }
 925 }
 926
 927 void InputManager::jumpBwd()
 928 {
 929     int i_interval = var_InheritInteger( p_input, "short-jump-size" );
 930     if( i_interval > 0 && hasInput() )
 931     {
 932         vlc_tick_t val = vlc_tick_from_sec( -i_interval );
 933         var_SetInteger( p_input, "time-offset", val );
 934     }
 935 }
 936
 937 void InputManager::setAtoB()
 938 {
 939     if( timeA != VLC_TICK_INVALID )
 940     {
 941         timeA = var_GetInteger( p_mim->getInput(), "time"  );
 942     }
 943     else if( timeB != VLC_TICK_INVALID )
 944     {
 945         timeB = var_GetInteger( p_mim->getInput(), "time"  );
 946         var_SetInteger( p_mim->getInput(), "time" , timeA );
 947         CONNECT( this, positionUpdated( float, vlc_tick_t, int ),
 948                  this, AtoBLoop( float, vlc_tick_t, int ) );
 949     }
 950     else
 951     {
 952         timeA = VLC_TICK_INVALID;
 953         timeB = VLC_TICK_INVALID;
 954         disconnect( this, SIGNAL( positionUpdated( float, vlc_tick_t, int ) ),
 955                     this, SLOT( AtoBLoop( float, vlc_tick_t, int ) ) );
 956     }
 957     emit AtoBchanged( (timeA != VLC_TICK_INVALID ), (timeB != VLC_TICK_INVALID ) );
 958 }
 959
 960 /* Function called regularly when in an AtoB loop */
 961 void InputManager::AtoBLoop( float, vlc_tick_t i_time, int )
 962 {
 963     if( timeB != VLC_TICK_INVALID && i_time >= timeB )
 964         var_SetInteger( p_mim->getInput(), "time" , timeA );
 965 }
 966
 967 /**********************************************************************
 968  * MainInputManager implementation. Wrap an input manager and
 969  * take care of updating the main playlist input.
 970  * Used in the main playlist Dialog
 971  **********************************************************************/
 972
 973 MainInputManager::MainInputManager( intf_thread_t *_p_intf )
 974     : QObject(NULL), p_input( NULL), p_intf( _p_intf ),
 975       random( VLC_OBJECT(THEPL), "random" ),
 976       repeat( VLC_OBJECT(THEPL), "repeat" ), loop( VLC_OBJECT(THEPL), "loop" ),
 977       volume( VLC_OBJECT(THEPL), "volume" ), mute( VLC_OBJECT(THEPL), "mute" )
 978 {
 979     im = new InputManager( this, p_intf );
 980
 981     /* Audio Menu */
 982     menusAudioMapper = new QSignalMapper();
 983     CONNECT( menusAudioMapper, mapped(QString), this, menusUpdateAudio( QString ) );
 984
 985     /* Core Callbacks */
 986     var_AddCallback( THEPL, "item-change", MainInputManager::ItemChanged, im );
 987     var_AddCallback( THEPL, "input-current", MainInputManager::PLItemChanged, this );
 988     var_AddCallback( THEPL, "leaf-to-parent", MainInputManager::LeafToParent, this );
 989     var_AddCallback( THEPL, "playlist-item-append", MainInputManager::PLItemAppended, this );
 990     var_AddCallback( THEPL, "playlist-item-deleted", MainInputManager::PLItemRemoved, this );
 991
 992     /* Core Callbacks to widget */
 993     random.addCallback( this, SLOT(notifyRandom(bool)) );
 994     repeat.addCallback( this, SLOT(notifyRepeatLoop(bool)) );
 995     loop.addCallback(   this, SLOT(notifyRepeatLoop(bool)) );
 996     volume.addCallback( this, SLOT(notifyVolume(float)) );
 997     mute.addCallback(   this, SLOT(notifyMute(bool)) );
 998
 999     /* Warn our embedded IM about input changes */
1000     DCONNECT( this, inputChanged( bool ),
1001               im, inputChangedHandler() );
1002 }
1003
1004 MainInputManager::~MainInputManager()
1005 {
1006     if( p_input )
1007     {
1008        vlc_object_release( p_input );
1009        p_input = NULL;
1010        emit inputChanged( false );
1011     }
1012
1013     var_DelCallback( THEPL, "input-current", MainInputManager::PLItemChanged, this );
1014     var_DelCallback( THEPL, "item-change", MainInputManager::ItemChanged, im );
1015     var_DelCallback( THEPL, "leaf-to-parent", MainInputManager::LeafToParent, this );
1016
1017     var_DelCallback( THEPL, "playlist-item-append", MainInputManager::PLItemAppended, this );
1018     var_DelCallback( THEPL, "playlist-item-deleted", MainInputManager::PLItemRemoved, this );
1019
1020     delete menusAudioMapper;
1021 }
1022
1023 vout_thread_t* MainInputManager::getVout()
1024 {
1025     return p_input ? input_GetVout( p_input ) : NULL;
1026 }
1027
1028 QVector<vout_thread_t*> MainInputManager::getVouts() const
1029 {
1030     vout_thread_t **pp_vout;
1031     size_t i_vout;
1032
1033     if( p_input == NULL
1034      || input_Control( p_input, INPUT_GET_VOUTS, &pp_vout, &i_vout ) != VLC_SUCCESS
1035      || i_vout == 0 )
1036         return QVector<vout_thread_t*>();
1037
1038     QVector<vout_thread_t*> vector = QVector<vout_thread_t*>();
1039     vector.reserve( i_vout );
1040     for( size_t i = 0; i < i_vout; i++ )
1041     {
1042         assert( pp_vout[i] );
1043         vector.append( pp_vout[i] );
1044     }
1045     free( pp_vout );
1046
1047     return vector;
1048 }
1049
1050 audio_output_t * MainInputManager::getAout()
1051 {
1052     return playlist_GetAout( THEPL );
1053 }
1054
1055 void MainInputManager::customEvent( QEvent *event )
1056 {
1057     int type = event->type();
1058
1059     PLEvent *plEv;
1060
1061     // msg_Dbg( p_intf, "New MainIM Event of type: %i", type );
1062     switch( type )
1063     {
1064     case PLEvent::PLItemAppended:
1065         plEv = static_cast<PLEvent*>( event );
1066         emit playlistItemAppended( plEv->getItemId(), plEv->getParentId() );
1067         return;
1068     case PLEvent::PLItemRemoved:
1069         plEv = static_cast<PLEvent*>( event );
1070         emit playlistItemRemoved( plEv->getItemId() );
1071         return;
1072     case PLEvent::PLEmpty:
1073         plEv = static_cast<PLEvent*>( event );
1074         emit playlistNotEmpty( plEv->getItemId() >= 0 );
1075         return;
1076     case PLEvent::LeafToParent:
1077         plEv = static_cast<PLEvent*>( event );
1078         emit leafBecameParent( plEv->getItemId() );
1079         return;
1080     default:
1081         if( type != IMEvent::ItemChanged ) return;
1082     }
1083     probeCurrentInput();
1084 }
1085
1086 void MainInputManager::probeCurrentInput()
1087 {
1088     if( p_input != NULL )
1089         vlc_object_release( p_input );
1090     p_input = playlist_CurrentInput( THEPL );
1091     emit inputChanged( p_input != NULL );
1092 }
1093
1094 /* Playlist Control functions */
1095 void MainInputManager::stop()
1096 {
1097    playlist_Stop( THEPL );
1098 }
1099
1100 void MainInputManager::next()
1101 {
1102    playlist_Next( THEPL );
1103 }
1104
1105 void MainInputManager::prev()
1106 {
1107    playlist_Prev( THEPL );
1108 }
1109
1110 void MainInputManager::prevOrReset()
1111 {
1112     if( !p_input || var_GetInteger( p_input, "time") < VLC_TICK_FROM_MS(10) )
1113         playlist_Prev( THEPL );
1114     else
1115         getIM()->sliderUpdate( 0.0 );
1116 }
1117
1118 void MainInputManager::togglePlayPause()
1119 {
1120     playlist_TogglePause( THEPL );
1121 }
1122
1123 void MainInputManager::play()
1124 {
1125     playlist_Play( THEPL );
1126 }
1127
1128 void MainInputManager::pause()
1129 {
1130     playlist_Pause( THEPL );
1131 }
1132
1133 void MainInputManager::toggleRandom()
1134 {
1135     config_PutInt( "random", var_ToggleBool( THEPL, "random" ) );
1136 }
1137
1138 void MainInputManager::notifyRandom(bool value)
1139 {
1140     emit randomChanged(value);
1141 }
1142
1143 void MainInputManager::notifyRepeatLoop(bool)
1144 {
1145     int i_state = NORMAL;
1146
1147     if( var_GetBool( THEPL, "loop" ) )   i_state = REPEAT_ALL;
1148     if( var_GetBool( THEPL, "repeat" ) ) i_state = REPEAT_ONE;
1149
1150     emit repeatLoopChanged( i_state );
1151 }
1152
1153 void MainInputManager::loopRepeatLoopStatus()
1154 {
1155     /* Toggle Normal -> Loop -> Repeat -> Normal ... */
1156     bool loop = var_GetBool( THEPL, "loop" );
1157     bool repeat = var_GetBool( THEPL, "repeat" );
1158
1159     if( repeat )
1160     {
1161         loop = false;
1162         repeat = false;
1163     }
1164     else if( loop )
1165     {
1166         loop = false;
1167         repeat = true;
1168     }
1169     else
1170     {
1171         loop = true;
1172         //repeat = false;
1173     }
1174
1175     var_SetBool( THEPL, "loop", loop );
1176     var_SetBool( THEPL, "repeat", repeat );
1177     config_PutInt( "loop", loop );
1178     config_PutInt( "repeat", repeat );
1179 }
1180
1181 void MainInputManager::activatePlayQuit( bool b_exit )
1182 {
1183     var_SetBool( THEPL, "play-and-exit", b_exit );
1184     config_PutInt( "play-and-exit", b_exit );
1185 }
1186
1187 bool MainInputManager::getPlayExitState()
1188 {
1189     return var_InheritBool( THEPL, "play-and-exit" );
1190 }
1191
1192 bool MainInputManager::hasEmptyPlaylist()
1193 {
1194     playlist_Lock( THEPL );
1195     bool b_empty = playlist_IsEmpty( THEPL );
1196     playlist_Unlock( THEPL );
1197     return b_empty;
1198 }
1199
1200 /****************************
1201  * Static callbacks for MIM *
1202  ****************************/
1203 int MainInputManager::PLItemChanged( vlc_object_t *, const char *,
1204                                      vlc_value_t, vlc_value_t, void *param )
1205 {
1206     MainInputManager *mim = (MainInputManager*)param;
1207
1208     IMEvent *event = new IMEvent( IMEvent::ItemChanged );
1209     QApplication::postEvent( mim, event );
1210     return VLC_SUCCESS;
1211 }
1212
1213 int MainInputManager::LeafToParent( vlc_object_t *, const char *,
1214                                     vlc_value_t, vlc_value_t val, void *param )
1215 {
1216     MainInputManager *mim = (MainInputManager*)param;
1217
1218     PLEvent *event = new PLEvent( PLEvent::LeafToParent, val.i_int );
1219
1220     QApplication::postEvent( mim, event );
1221     return VLC_SUCCESS;
1222 }
1223
1224 void MainInputManager::notifyVolume( float volume )
1225 {
1226     emit volumeChanged( volume );
1227 }
1228
1229 void MainInputManager::notifyMute( bool mute )
1230 {
1231     emit soundMuteChanged(mute);
1232 }
1233
1234
1235 void MainInputManager::menusUpdateAudio( const QString& data )
1236 {
1237     audio_output_t *aout = getAout();
1238     if( aout != NULL )
1239     {
1240         aout_DeviceSet( aout, qtu(data) );
1241         vlc_object_release( aout );
1242     }
1243 }
1244
1245 int MainInputManager::PLItemAppended( vlc_object_t *, const char *,
1246                                       vlc_value_t, vlc_value_t cur,
1247                                       void *data )
1248 {
1249     MainInputManager *mim = static_cast<MainInputManager*>(data);
1250     playlist_item_t *item = static_cast<playlist_item_t *>( cur.p_address );
1251
1252     PLEvent *event = new PLEvent( PLEvent::PLItemAppended, item->i_id,
1253         (item->p_parent != NULL) ? item->p_parent->i_id : -1  );
1254     QApplication::postEvent( mim, event );
1255
1256     event = new PLEvent( PLEvent::PLEmpty, item->i_id, 0  );
1257     QApplication::postEvent( mim, event );
1258     return VLC_SUCCESS;
1259 }
1260
1261 int MainInputManager::PLItemRemoved( vlc_object_t *obj, const char *,
1262                                      vlc_value_t, vlc_value_t cur, void *data )
1263 {
1264     playlist_t *pl = (playlist_t *) obj;
1265     MainInputManager *mim = static_cast<MainInputManager*>(data);
1266     playlist_item_t *item = static_cast<playlist_item_t *>( cur.p_address );
1267
1268     PLEvent *event = new PLEvent( PLEvent::PLItemRemoved, item->i_id, 0  );
1269     QApplication::postEvent( mim, event );
1270     // can't use playlist_IsEmpty(  ) as it isn't true yet
1271     if ( pl->items.i_size == 1 ) // lock is held
1272     {
1273         event = new PLEvent( PLEvent::PLEmpty, -1, 0 );
1274         QApplication::postEvent( mim, event );
1275     }
1276     return VLC_SUCCESS;
1277 }
1278
1279 void MainInputManager::changeFullscreen( bool new_val )
1280 {
1281     if ( var_GetBool( THEPL, "fullscreen" ) != new_val)
1282         var_SetBool( THEPL, "fullscreen", new_val );
1283 }