modules/gui/qt4/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  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  *          Ilkka Ollakka  <ileoo@videolan.org>
   9  *          Jean-Baptiste <jb@videolan.org>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24  *****************************************************************************/
  25
  26 #define __STDC_FORMAT_MACROS 1
  27 #define __STDC_CONSTANT_MACROS 1
  28
  29 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32
  33 #include "input_manager.hpp"
  34 #include <vlc_keys.h>
  35 #include <vlc_url.h>
  36 #include <vlc_strings.h>
  37 #include <vlc_aout.h>
  38 #include <vlc_aout_intf.h>
  39
  40 #include <QApplication>
  41
  42 #include <assert.h>
  43
  44 static int ItemChanged( vlc_object_t *, const char *,
  45                         vlc_value_t, vlc_value_t, void * );
  46 static int LeafToParent( vlc_object_t *, const char *,
  47                         vlc_value_t, vlc_value_t, void * );
  48 static int PLItemChanged( vlc_object_t *, const char *,
  49                         vlc_value_t, vlc_value_t, void * );
  50 static int PLItemAppended( vlc_object_t *, const char *,
  51                         vlc_value_t, vlc_value_t, void * );
  52 static int PLItemRemoved( vlc_object_t *, const char *,
  53                         vlc_value_t, vlc_value_t, void * );
  54 static int VolumeChanged( vlc_object_t *, const char *,
  55                         vlc_value_t, vlc_value_t, void * );
  56 static int SoundMuteChanged( vlc_object_t *, const char *,
  57                         vlc_value_t, vlc_value_t, void * );
  58
  59 static int RandomChanged( vlc_object_t *, const char *,
  60                         vlc_value_t, vlc_value_t, void * );
  61 static int LoopOrRepeatChanged( vlc_object_t *, const char *,
  62                         vlc_value_t, vlc_value_t, void * );
  63
  64 static int InputEvent( vlc_object_t *, const char *,
  65                        vlc_value_t, vlc_value_t, void * );
  66 static int VbiEvent( vlc_object_t *, const char *,
  67                      vlc_value_t, vlc_value_t, void * );
  68
  69
  70 /**********************************************************************
  71  * InputManager implementation
  72  **********************************************************************
  73  * The Input Manager can be the main one around the playlist
  74  * But can also be used for VLM dialog or similar
  75  **********************************************************************/
  76
  77 InputManager::InputManager( QObject *parent, intf_thread_t *_p_intf) :
  78                            QObject( parent ), p_intf( _p_intf )
  79 {
  80     i_old_playing_status = END_S;
  81     oldName      = "";
  82     artUrl       = "";
  83     p_input      = NULL;
  84     p_input_vbi  = NULL;
  85     f_rate       = 0.;
  86     p_item       = NULL;
  87     b_video      = false;
  88     timeA        = 0;
  89     timeB        = 0;
  90     f_cache      = -1.; /* impossible initial value, different from all */
  91 }
  92
  93 InputManager::~InputManager()
  94 {
  95     delInput();
  96 }
  97
  98 /* Define the Input used.
  99    Add the callbacks on input
 100    p_input is held once here */
 101 void InputManager::setInput( input_thread_t *_p_input )
 102 {
 103     delInput();
 104     p_input = _p_input;
 105     if( p_input && !( p_input->b_dead || !vlc_object_alive (p_input) ) )
 106     {
 107         msg_Dbg( p_intf, "IM: Setting an input" );
 108         vlc_object_hold( p_input );
 109         addCallbacks();
 110         UpdateStatus();
 111         UpdateName();
 112         UpdateArt();
 113         UpdateTeletext();
 114         UpdateNavigation();
 115         UpdateVout();
 116
 117         p_item = input_GetItem( p_input );
 118         emit rateChanged( var_GetFloat( p_input, "rate" ) );
 119     }
 120     else
 121     {
 122         p_input = NULL;
 123         p_item = NULL;
 124         assert( !p_input_vbi );
 125         emit rateChanged( var_InheritFloat( p_intf, "rate" ) );
 126     }
 127 }
 128
 129 /* delete Input if it ever existed.
 130    Delete the callbacls on input
 131    p_input is released once here */
 132 void InputManager::delInput()
 133 {
 134     if( !p_input ) return;
 135     msg_Dbg( p_intf, "IM: Deleting the input" );
 136
 137     delCallbacks();
 138     i_old_playing_status = END_S;
 139     p_item               = NULL;
 140     oldName              = "";
 141     artUrl               = "";
 142     b_video              = false;
 143     timeA                = 0;
 144     timeB                = 0;
 145     f_rate               = 0. ;
 146
 147     if( p_input_vbi )
 148     {
 149         vlc_object_release( p_input_vbi );
 150         p_input_vbi = NULL;
 151     }
 152
 153     vlc_object_release( p_input );
 154     p_input = NULL;
 155
 156     emit positionUpdated( -1.0, 0 ,0 );
 157     emit rateChanged( var_InheritFloat( p_intf, "rate" ) );
 158     emit nameChanged( "" );
 159     emit chapterChanged( 0 );
 160     emit titleChanged( 0 );
 161     emit playingStatusChanged( END_S );
 162
 163     emit teletextPossible( false );
 164     emit AtoBchanged( false, false );
 165     emit voutChanged( false );
 166     emit voutListChanged( NULL, 0 );
 167
 168     /* Reset all InfoPanels but stats */
 169     emit artChanged( NULL );
 170     emit infoChanged( NULL );
 171     emit currentMetaChanged( (input_item_t *)NULL );
 172
 173     emit encryptionChanged( false );
 174     emit recordingStateChanged( false );
 175
 176     emit cachingChanged( 1 );
 177 }
 178
 179 /* Convert the event from the callbacks in actions */
 180 void InputManager::customEvent( QEvent *event )
 181 {
 182     int i_type = event->type();
 183     IMEvent *ple = static_cast<IMEvent *>(event);
 184
 185     if( i_type == ItemChanged_Type )
 186         UpdateMeta( ple->p_item );
 187
 188     if( !hasInput() )
 189         return;
 190
 191     /* Actions */
 192     switch( i_type )
 193     {
 194     case PositionUpdate_Type:
 195         UpdatePosition();
 196         break;
 197     case StatisticsUpdate_Type:
 198         UpdateStats();
 199         break;
 200     case ItemChanged_Type:
 201         /* Ignore ItemChanged_Type event that does not apply to our input */
 202         if( p_item == ple->p_item )
 203         {
 204             UpdateStatus();
 205             // UpdateName();
 206             UpdateArt();
 207             /* Update duration of file */
 208         }
 209         break;
 210     case ItemStateChanged_Type:
 211         // TODO: Fusion with above state
 212         UpdateStatus();
 213         // UpdateName();
 214         // UpdateNavigation(); This shouldn't be useful now
 215         // UpdateTeletext(); Same
 216         break;
 217     case NameChanged_Type:
 218         UpdateName();
 219         break;
 220     case MetaChanged_Type:
 221         UpdateMeta();
 222         UpdateName(); /* Needed for NowPlaying */
 223         UpdateArt(); /* Art is part of meta in the core */
 224         break;
 225     case InfoChanged_Type:
 226         UpdateInfo();
 227         break;
 228     case ItemTitleChanged_Type:
 229         UpdateNavigation();
 230         UpdateName(); /* Display the name of the Chapter, if exists */
 231         break;
 232     case ItemRateChanged_Type:
 233         UpdateRate();
 234         break;
 235     case ItemEsChanged_Type:
 236         UpdateTeletext();
 237         // We don't do anything ES related. Why ?
 238         break;
 239     case ItemTeletextChanged_Type:
 240         UpdateTeletext();
 241         break;
 242     case InterfaceVoutUpdate_Type:
 243         UpdateVout();
 244         break;
 245     case SynchroChanged_Type:
 246         emit synchroChanged();
 247         break;
 248     case CachingEvent_Type:
 249         UpdateCaching();
 250         break;
 251     case BookmarksChanged_Type:
 252         emit bookmarksChanged();
 253         break;
 254     case InterfaceAoutUpdate_Type:
 255         UpdateAout();
 256         break;
 257     case RecordingEvent_Type:
 258         UpdateRecord();
 259         break;
 260     case ProgramChanged_Type:
 261         UpdateProgramEvent();
 262         break;
 263     case EPGEvent_Type:
 264         UpdateEPG();
 265         break;
 266     default:
 267         msg_Warn( p_intf, "This shouldn't happen: %i", i_type );
 268         assert(0);
 269     }
 270 }
 271
 272 /* Add the callbacks on Input. Self explanatory */
 273 inline void InputManager::addCallbacks()
 274 {
 275     var_AddCallback( p_input, "intf-event", InputEvent, this );
 276 }
 277
 278 /* Delete the callbacks on Input. Self explanatory */
 279 inline void InputManager::delCallbacks()
 280 {
 281     var_DelCallback( p_input, "intf-event", InputEvent, this );
 282 }
 283
 284 /* Static callbacks for IM */
 285 static int ItemChanged( vlc_object_t *p_this, const char *psz_var,
 286                         vlc_value_t oldval, vlc_value_t newval, void *param )
 287 {
 288     VLC_UNUSED( p_this ); VLC_UNUSED( psz_var ); VLC_UNUSED( oldval );
 289
 290     InputManager *im = (InputManager*)param;
 291     input_item_t *p_item = static_cast<input_item_t *>(newval.p_address);
 292
 293     IMEvent *event = new IMEvent( ItemChanged_Type, p_item );
 294     QApplication::postEvent( im, event );
 295     return VLC_SUCCESS;
 296 }
 297
 298 static int InputEvent( vlc_object_t *p_this, const char *,
 299                        vlc_value_t, vlc_value_t newval, void *param )
 300 {
 301     VLC_UNUSED( p_this );
 302
 303     InputManager *im = (InputManager*)param;
 304     IMEvent *event;
 305
 306     switch( newval.i_int )
 307     {
 308     case INPUT_EVENT_STATE:
 309         event = new IMEvent( ItemStateChanged_Type );
 310         break;
 311     case INPUT_EVENT_RATE:
 312         event = new IMEvent( ItemRateChanged_Type );
 313         break;
 314     case INPUT_EVENT_POSITION:
 315     //case INPUT_EVENT_LENGTH:
 316         event = new IMEvent( PositionUpdate_Type );
 317         break;
 318
 319     case INPUT_EVENT_TITLE:
 320     case INPUT_EVENT_CHAPTER:
 321         event = new IMEvent( ItemTitleChanged_Type );
 322         break;
 323
 324     case INPUT_EVENT_ES:
 325         event = new IMEvent( ItemEsChanged_Type );
 326         break;
 327     case INPUT_EVENT_TELETEXT:
 328         event = new IMEvent( ItemTeletextChanged_Type );
 329         break;
 330
 331     case INPUT_EVENT_STATISTICS:
 332         event = new IMEvent( StatisticsUpdate_Type );
 333         break;
 334
 335     case INPUT_EVENT_VOUT:
 336         event = new IMEvent( InterfaceVoutUpdate_Type );
 337         break;
 338     case INPUT_EVENT_AOUT:
 339         event = new IMEvent( InterfaceAoutUpdate_Type );
 340         break;
 341
 342     case INPUT_EVENT_ITEM_META: /* Codec MetaData + Art */
 343         event = new IMEvent( MetaChanged_Type );
 344         break;
 345     case INPUT_EVENT_ITEM_INFO: /* Codec Info */
 346         event = new IMEvent( InfoChanged_Type );
 347         break;
 348     case INPUT_EVENT_ITEM_NAME:
 349         event = new IMEvent( NameChanged_Type );
 350         break;
 351
 352     case INPUT_EVENT_AUDIO_DELAY:
 353     case INPUT_EVENT_SUBTITLE_DELAY:
 354         event = new IMEvent( SynchroChanged_Type );
 355         break;
 356
 357     case INPUT_EVENT_CACHE:
 358         event = new IMEvent( CachingEvent_Type );
 359         break;
 360
 361     case INPUT_EVENT_BOOKMARK:
 362         event = new IMEvent( BookmarksChanged_Type );
 363         break;
 364
 365     case INPUT_EVENT_RECORD:
 366         event = new IMEvent( RecordingEvent_Type );
 367         break;
 368
 369     case INPUT_EVENT_PROGRAM:
 370         /* This is for PID changes */
 371         event = new IMEvent( ProgramChanged_Type );
 372         break;
 373
 374     case INPUT_EVENT_ITEM_EPG:
 375         /* EPG data changed */
 376         event = new IMEvent( EPGEvent_Type );
 377         break;
 378
 379     case INPUT_EVENT_SIGNAL:
 380         /* This is for capture-card signals */
 381         /* event = new IMEvent( SignalChanged_Type );
 382         break; */
 383     default:
 384         event = NULL;
 385         break;
 386     }
 387
 388     if( event )
 389         QApplication::postEvent( im, event );
 390     return VLC_SUCCESS;
 391 }
 392
 393 static int VbiEvent( vlc_object_t *, const char *,
 394                      vlc_value_t, vlc_value_t, void *param )
 395 {
 396     InputManager *im = (InputManager*)param;
 397     IMEvent *event = new IMEvent( ItemTeletextChanged_Type );
 398
 399     QApplication::postEvent( im, event );
 400     return VLC_SUCCESS;
 401 }
 402
 403 void InputManager::UpdatePosition()
 404 {
 405     /* Update position */
 406     int i_length;
 407     int64_t i_time;
 408     float f_pos;
 409     i_length = var_GetTime(  p_input , "length" ) / CLOCK_FREQ;
 410     i_time = var_GetTime(  p_input , "time");
 411     f_pos = var_GetFloat(  p_input , "position" );
 412     emit positionUpdated( f_pos, i_time, i_length );
 413 }
 414
 415 void InputManager::UpdateNavigation()
 416 {
 417     /* Update navigation status */
 418     vlc_value_t val; val.i_int = 0;
 419     vlc_value_t val2; val2.i_int = 0;
 420
 421     if( hasInput() )
 422         var_Change( p_input, "title", VLC_VAR_CHOICESCOUNT, &val, NULL );
 423
 424     if( val.i_int > 0 )
 425     {
 426         emit titleChanged( true );
 427         /* p_input != NULL since val.i_int != 0 */
 428         var_Change( p_input, "chapter", VLC_VAR_CHOICESCOUNT, &val2, NULL );
 429         emit chapterChanged( (val2.i_int > 1) || ( val2.i_int > 0 && val.i_int > 1 ) );
 430     }
 431     else
 432         emit titleChanged( false );
 433 }
 434
 435 void InputManager::UpdateStatus()
 436 {
 437     /* Update playing status */
 438     int state = var_GetInteger( p_input, "state" );
 439     if( i_old_playing_status != state )
 440     {
 441         i_old_playing_status = state;
 442         emit playingStatusChanged( state );
 443     }
 444 }
 445
 446 void InputManager::UpdateRate()
 447 {
 448     /* Update Rate */
 449     float f_new_rate = var_GetFloat( p_input, "rate" );
 450     if( f_new_rate != f_rate )
 451     {
 452         f_rate = f_new_rate;
 453         /* Update rate */
 454         emit rateChanged( f_rate );
 455     }
 456 }
 457
 458 void InputManager::UpdateName()
 459 {
 460     assert( p_input );
 461
 462     /* Update text, name and nowplaying */
 463     QString name;
 464
 465     /* Try to get the nowplaying */
 466     char *format = var_InheritString( p_intf, "input-title-format" );
 467     char *formated = str_format_meta( p_input, format );
 468     free( format );
 469     name = qfu(formated);
 470     free( formated );
 471
 472     /* If we have Nothing */
 473     if( name.isEmpty() )
 474     {
 475         char *uri = input_item_GetURI( input_GetItem( p_input ) );
 476         char *file = uri ? strrchr( uri, '/' ) : NULL;
 477         if( file != NULL )
 478         {
 479             decode_URI( ++file );
 480             name = qfu(file);
 481         }
 482         else
 483             name = qfu(uri);
 484         free( uri );
 485     }
 486
 487     name = name.trimmed();
 488
 489     if( oldName != name )
 490     {
 491         emit nameChanged( name );
 492         oldName = name;
 493     }
 494 }
 495
 496 int InputManager::playingStatus()
 497 {
 498     return i_old_playing_status;
 499 }
 500
 501 bool InputManager::hasAudio()
 502 {
 503     if( hasInput() )
 504     {
 505         vlc_value_t val;
 506         var_Change( p_input, "audio-es", VLC_VAR_CHOICESCOUNT, &val, NULL );
 507         return val.i_int > 0;
 508     }
 509     return false;
 510 }
 511
 512 bool InputManager::hasVisualisation()
 513 {
 514     if( !p_input )
 515         return false;
 516
 517     audio_output_t *aout = input_GetAout( p_input );
 518     if( !aout )
 519         return false;
 520
 521     char *visual = var_InheritString( aout, "visual" );
 522     vlc_object_release( aout );
 523
 524     if( !visual )
 525         return false;
 526
 527     free( visual );
 528     return true;
 529 }
 530
 531 void InputManager::UpdateTeletext()
 532 {
 533     if( hasInput() )
 534     {
 535         const bool b_enabled = var_CountChoices( p_input, "teletext-es" ) > 0;
 536         const int i_teletext_es = var_GetInteger( p_input, "teletext-es" );
 537
 538         /* Teletext is possible. Show the buttons */
 539         emit teletextPossible( b_enabled );
 540
 541         /* If Teletext is selected */
 542         if( b_enabled && i_teletext_es >= 0 )
 543         {
 544             /* Then, find the current page */
 545             int i_page = 100;
 546             bool b_transparent = false;
 547
 548             if( p_input_vbi )
 549             {
 550                 var_DelCallback( p_input_vbi, "vbi-page", VbiEvent, this );
 551                 vlc_object_release( p_input_vbi );
 552             }
 553
 554             if( input_GetEsObjects( p_input, i_teletext_es, &p_input_vbi, NULL, NULL ) )
 555                 p_input_vbi = NULL;
 556
 557             if( p_input_vbi )
 558             {
 559                 /* This callback is not remove explicitly, but interfaces
 560                  * are guaranted to outlive input */
 561                 var_AddCallback( p_input_vbi, "vbi-page", VbiEvent, this );
 562
 563                 i_page = var_GetInteger( p_input_vbi, "vbi-page" );
 564                 b_transparent = !var_GetBool( p_input_vbi, "vbi-opaque" );
 565             }
 566             emit newTelexPageSet( i_page );
 567             emit teletextTransparencyActivated( b_transparent );
 568
 569         }
 570         emit teletextActivated( b_enabled && i_teletext_es >= 0 );
 571     }
 572     else
 573     {
 574         emit teletextActivated( false );
 575         emit teletextPossible( false );
 576     }
 577 }
 578
 579 void InputManager::UpdateEPG()
 580 {
 581     if( hasInput() )
 582     {
 583        emit epgChanged();
 584     }
 585 }
 586
 587 void InputManager::UpdateVout()
 588 {
 589     if( hasInput() )
 590     {
 591         /* Get current vout lists from input */
 592         size_t i_vout;
 593         vout_thread_t **pp_vout;
 594         if( input_Control( p_input, INPUT_GET_VOUTS, &pp_vout, &i_vout ) )
 595         {
 596             i_vout = 0;
 597             pp_vout = NULL;
 598         }
 599
 600         /* */
 601         emit voutListChanged( pp_vout, i_vout );
 602
 603         /* */
 604         bool b_old_video = b_video;
 605         b_video = i_vout > 0;
 606         if( !!b_old_video != !!b_video )
 607             emit voutChanged( b_video );
 608
 609         /* Release the vout list */
 610         for( size_t i = 0; i < i_vout; i++ )
 611             vlc_object_release( (vlc_object_t*)pp_vout[i] );
 612         free( pp_vout );
 613     }
 614 }
 615 void InputManager::UpdateAout()
 616 {
 617     if( hasInput() )
 618     {
 619         /* TODO */
 620     }
 621 }
 622 void InputManager::UpdateCaching()
 623 {
 624     if(!hasInput()) return;
 625
 626     float f_newCache = var_GetFloat ( p_input, "cache" );
 627     if( f_newCache != f_cache )
 628     {
 629         f_cache = f_newCache;
 630         /* Update cache */
 631         emit cachingChanged( f_cache );
 632     }
 633 }
 634
 635 void InputManager::requestArtUpdate()
 636 {
 637     if( hasInput() )
 638     {
 639         playlist_AskForArtEnqueue( pl_Get(p_intf), input_GetItem( p_input ) );
 640     }
 641     else
 642     {
 643         /* No input will signal the cover art to update,
 644          * let's do it ourself */
 645         UpdateArt();
 646     }
 647 }
 648
 649 const QString InputManager::decodeArtURL( input_item_t *p_item )
 650 {
 651     assert( p_item );
 652
 653     char *psz_art = input_item_GetArtURL( p_item );
 654     if( psz_art )
 655     {
 656         char *psz = make_path( psz_art );
 657         free( psz_art );
 658         psz_art = psz;
 659     }
 660
 661 #if 0
 662     /* Taglib seems to define a attachment://, It won't work yet */
 663     url = url.replace( "attachment://", "" );
 664 #endif
 665
 666     QString path = qfu( psz_art ? psz_art : "" );
 667     free( psz_art );
 668     return path;
 669 }
 670
 671 void InputManager::UpdateArt()
 672 {
 673     QString url;
 674
 675     if( hasInput() )
 676         url = decodeArtURL( input_GetItem( p_input ) );
 677
 678     /* the art hasn't changed, no need to update */
 679     if(artUrl == url)
 680         return;
 681
 682     /* Update Art meta */
 683     artUrl = url;
 684     emit artChanged( artUrl );
 685 }
 686
 687 inline void InputManager::UpdateStats()
 688 {
 689     assert( p_input );
 690     emit statisticsUpdated( input_GetItem( p_input ) );
 691 }
 692
 693 inline void InputManager::UpdateMeta( input_item_t *p_item )
 694 {
 695     emit metaChanged( p_item );
 696 }
 697
 698 inline void InputManager::UpdateMeta()
 699 {
 700     assert( p_input );
 701     emit currentMetaChanged( input_GetItem( p_input ) );
 702 }
 703
 704 inline void InputManager::UpdateInfo()
 705 {
 706     assert( p_input );
 707     emit infoChanged( input_GetItem( p_input ) );
 708 }
 709
 710 void InputManager::UpdateRecord()
 711 {
 712     if( hasInput() )
 713     {
 714         emit recordingStateChanged( var_GetBool( p_input, "record" ) );
 715     }
 716 }
 717
 718 void InputManager::UpdateProgramEvent()
 719 {
 720     if( hasInput() )
 721     {
 722         bool b_scrambled = var_GetBool( p_input, "program-scrambled" );
 723         emit encryptionChanged( b_scrambled );
 724     }
 725 }
 726
 727 /* User update of the slider */
 728 void InputManager::sliderUpdate( float new_pos )
 729 {
 730     if( hasInput() )
 731         var_SetFloat( p_input, "position", new_pos );
 732     emit seekRequested( new_pos );
 733 }
 734
 735 void InputManager::sectionPrev()
 736 {
 737     if( hasInput() )
 738     {
 739         int i_type = var_Type( p_input, "next-chapter" );
 740         var_TriggerCallback( p_input, (i_type & VLC_VAR_TYPE) != 0 ?
 741                              "prev-chapter":"prev-title" );
 742     }
 743 }
 744
 745 void InputManager::sectionNext()
 746 {
 747     if( hasInput() )
 748     {
 749         int i_type = var_Type( p_input, "next-chapter" );
 750         var_TriggerCallback( p_input, (i_type & VLC_VAR_TYPE) != 0 ?
 751                              "next-chapter":"next-title" );
 752     }
 753 }
 754
 755 void InputManager::sectionMenu()
 756 {
 757     if( hasInput() )
 758     {
 759         vlc_value_t val, text;
 760
 761         if( var_Change( p_input, "title  0", VLC_VAR_GETLIST, &val, &text ) < 0 )
 762             return;
 763
 764         /* XXX is it "Root" or "Title" we want here ?" (set 0 by default) */
 765         int root = 0;
 766         for( int i = 0; i < val.p_list->i_count; i++ )
 767         {
 768             if( !strcmp( text.p_list->p_values[i].psz_string, "Title" ) )
 769                 root = i;
 770         }
 771         var_FreeList( &val, &text );
 772
 773         var_SetInteger( p_input, "title  0", root );
 774     }
 775 }
 776
 777 /*
 778  *  Teletext Functions
 779  */
 780
 781 /* Set a new Teletext Page */
 782 void InputManager::telexSetPage( int page )
 783 {
 784     if( hasInput() && p_input_vbi )
 785     {
 786         const int i_teletext_es = var_GetInteger( p_input, "teletext-es" );
 787
 788         if( i_teletext_es >= 0 )
 789         {
 790             var_SetInteger( p_input_vbi, "vbi-page", page );
 791             emit newTelexPageSet( page );
 792         }
 793     }
 794 }
 795
 796 /* Set the transparency on teletext */
 797 void InputManager::telexSetTransparency( bool b_transparentTelextext )
 798 {
 799     if( hasInput() && p_input_vbi )
 800     {
 801         var_SetBool( p_input_vbi, "vbi-opaque", !b_transparentTelextext );
 802         emit teletextTransparencyActivated( b_transparentTelextext );
 803     }
 804 }
 805
 806 void InputManager::activateTeletext( bool b_enable )
 807 {
 808     vlc_value_t list;
 809     vlc_value_t text;
 810     if( hasInput() && !var_Change( p_input, "teletext-es", VLC_VAR_GETLIST, &list, &text ) )
 811     {
 812         if( list.p_list->i_count > 0 )
 813         {
 814             /* Prefer the page 100 if it is present */
 815             int i;
 816             for( i = 0; i < text.p_list->i_count; i++ )
 817             {
 818                 /* The description is the page number as a string */
 819                 const char *psz_page = text.p_list->p_values[i].psz_string;
 820                 if( psz_page && !strcmp( psz_page, "100" ) )
 821                     break;
 822             }
 823             if( i >= list.p_list->i_count )
 824                 i = 0;
 825             var_SetInteger( p_input, "spu-es", b_enable ? list.p_list->p_values[i].i_int : -1 );
 826         }
 827         var_FreeList( &list, &text );
 828     }
 829 }
 830
 831 void InputManager::reverse()
 832 {
 833     if( hasInput() )
 834     {
 835         float f_rate = var_GetFloat( p_input, "rate" );
 836         var_SetFloat( p_input, "rate", -f_rate );
 837     }
 838 }
 839
 840 void InputManager::slower()
 841 {
 842     var_TriggerCallback( THEPL, "rate-slower" );
 843 }
 844
 845 void InputManager::faster()
 846 {
 847     var_TriggerCallback( THEPL, "rate-faster" );
 848 }
 849
 850 void InputManager::littlefaster()
 851 {
 852     var_SetInteger( p_intf->p_libvlc, "key-action", ACTIONID_RATE_FASTER_FINE );
 853 }
 854
 855 void InputManager::littleslower()
 856 {
 857     var_SetInteger( p_intf->p_libvlc, "key-action", ACTIONID_RATE_SLOWER_FINE );
 858 }
 859
 860 void InputManager::normalRate()
 861 {
 862     var_SetFloat( THEPL, "rate", 1. );
 863 }
 864
 865 void InputManager::setRate( int new_rate )
 866 {
 867     var_SetFloat( THEPL, "rate",
 868                  (float)INPUT_RATE_DEFAULT / (float)new_rate );
 869 }
 870
 871 void InputManager::jumpFwd()
 872 {
 873     int i_interval = var_InheritInteger( p_input, "short-jump-size" );
 874     if( i_interval > 0 && hasInput() )
 875     {
 876         mtime_t val = CLOCK_FREQ * i_interval;
 877         var_SetTime( p_input, "time-offset", val );
 878     }
 879 }
 880
 881 void InputManager::jumpBwd()
 882 {
 883     int i_interval = var_InheritInteger( p_input, "short-jump-size" );
 884     if( i_interval > 0 && hasInput() )
 885     {
 886         mtime_t val = -CLOCK_FREQ * i_interval;
 887         var_SetTime( p_input, "time-offset", val );
 888     }
 889 }
 890
 891 void InputManager::setAtoB()
 892 {
 893     if( !timeA )
 894     {
 895         timeA = var_GetTime( THEMIM->getInput(), "time"  );
 896     }
 897     else if( !timeB )
 898     {
 899         timeB = var_GetTime( THEMIM->getInput(), "time"  );
 900         var_SetTime( THEMIM->getInput(), "time" , timeA );
 901         CONNECT( this, positionUpdated( float, int64_t, int ),
 902                  this, AtoBLoop( float, int64_t, int ) );
 903     }
 904     else
 905     {
 906         timeA = 0;
 907         timeB = 0;
 908         disconnect( this, SIGNAL( positionUpdated( float, int64_t, int ) ),
 909                     this, SLOT( AtoBLoop( float, int64_t, int ) ) );
 910     }
 911     emit AtoBchanged( (timeA != 0 ), (timeB != 0 ) );
 912 }
 913
 914 /* Function called regularly when in an AtoB loop */
 915 void InputManager::AtoBLoop( float, int64_t i_time, int )
 916 {
 917     if( timeB )
 918     {
 919         if( i_time >= timeB || i_time < timeA )
 920             var_SetTime( THEMIM->getInput(), "time" , timeA );
 921     }
 922 }
 923
 924 /**********************************************************************
 925  * MainInputManager implementation. Wrap an input manager and
 926  * take care of updating the main playlist input.
 927  * Used in the main playlist Dialog
 928  **********************************************************************/
 929
 930 MainInputManager::MainInputManager( intf_thread_t *_p_intf )
 931                  : QObject(NULL), p_intf( _p_intf )
 932 {
 933     p_input = NULL;
 934     im = new InputManager( this, p_intf );
 935
 936     var_AddCallback( THEPL, "item-change", ItemChanged, im );
 937     var_AddCallback( THEPL, "item-current", PLItemChanged, this );
 938     var_AddCallback( THEPL, "activity", PLItemChanged, this );
 939     var_AddCallback( THEPL, "leaf-to-parent", LeafToParent, this );
 940     var_AddCallback( THEPL, "playlist-item-append", PLItemAppended, this );
 941     var_AddCallback( THEPL, "playlist-item-deleted", PLItemRemoved, this );
 942     var_AddCallback( THEPL, "random", RandomChanged, this );
 943     var_AddCallback( THEPL, "repeat", LoopOrRepeatChanged, this );
 944     var_AddCallback( THEPL, "loop", LoopOrRepeatChanged, this );
 945
 946     var_AddCallback( THEPL, "volume", VolumeChanged, this );
 947     var_AddCallback( THEPL, "mute", SoundMuteChanged, this );
 948
 949     /* Warn our embedded IM about input changes */
 950     DCONNECT( this, inputChanged( input_thread_t * ),
 951               im, setInput( input_thread_t * ) );
 952
 953 }
 954
 955 MainInputManager::~MainInputManager()
 956 {
 957     if( p_input )
 958     {
 959        emit inputChanged( NULL );
 960        var_DelCallback( p_input, "state", PLItemChanged, this );
 961        vlc_object_release( p_input );
 962     }
 963
 964     var_DelCallback( THEPL, "volume", VolumeChanged, this );
 965     var_DelCallback( THEPL, "mute", SoundMuteChanged, this );
 966
 967     var_DelCallback( THEPL, "activity", PLItemChanged, this );
 968     var_DelCallback( THEPL, "item-change", ItemChanged, im );
 969     var_DelCallback( THEPL, "leaf-to-parent", LeafToParent, this );
 970
 971     var_DelCallback( THEPL, "item-current", PLItemChanged, this );
 972     var_DelCallback( THEPL, "playlist-item-append", PLItemAppended, this );
 973     var_DelCallback( THEPL, "playlist-item-deleted", PLItemRemoved, this );
 974     var_DelCallback( THEPL, "random", RandomChanged, this );
 975     var_DelCallback( THEPL, "repeat", LoopOrRepeatChanged, this );
 976     var_DelCallback( THEPL, "loop", LoopOrRepeatChanged, this );
 977
 978     /* Save some interface state in configuration, at module quit */
 979     config_PutInt( p_intf, "random", var_GetBool( THEPL, "random" ) );
 980     config_PutInt( p_intf, "loop", var_GetBool( THEPL, "loop" ) );
 981     config_PutInt( p_intf, "repeat", var_GetBool( THEPL, "repeat" ) );
 982
 983     if( var_InheritBool( p_intf, "qt-autosave-volume" ) )
 984         config_PutInt( p_intf, "volume", aout_VolumeGet( THEPL ) );
 985 }
 986
 987 vout_thread_t* MainInputManager::getVout()
 988 {
 989     return p_input ? input_GetVout( p_input ) : NULL;
 990 }
 991
 992 audio_output_t * MainInputManager::getAout()
 993 {
 994     return p_input ? input_GetAout( p_input ) : NULL;
 995 }
 996
 997 void MainInputManager::customEvent( QEvent *event )
 998 {
 999     int type = event->type();
1000
1001     PLEvent *plEv;
1002
1003     // msg_Dbg( p_intf, "New MainIM Event of type: %i", type );
1004     switch( type )
1005     {
1006     case VolumeChanged_Type:
1007         emit volumeChanged();
1008         return;
1009     case SoundMuteChanged_Type:
1010         emit soundMuteChanged();
1011         return;
1012     case PLItemAppended_Type:
1013         plEv = static_cast<PLEvent*>( event );
1014         emit playlistItemAppended( plEv->i_item, plEv->i_parent );
1015         return;
1016     case PLItemRemoved_Type:
1017         plEv = static_cast<PLEvent*>( event );
1018         emit playlistItemRemoved( plEv->i_item );
1019         return;
1020     case PLEmpty_Type:
1021         plEv = static_cast<PLEvent*>( event );
1022         emit playlistNotEmpty( plEv->i_item >= 0 );
1023         return;
1024     case RandomChanged_Type:
1025         emit randomChanged( var_GetBool( THEPL, "random" ) );
1026         return;
1027     case LoopOrRepeatChanged_Type:
1028         notifyRepeatLoop();
1029         return;
1030     case LeafToParent_Type:
1031         plEv = static_cast<PLEvent*>( event );
1032         emit leafBecameParent( plEv->i_item );
1033         return;
1034     default:
1035         if( type != ItemChanged_Type ) return;
1036     }
1037
1038     /* Should be PLItemChanged Event */
1039     if( !p_intf->p_sys->b_isDialogProvider )
1040     {
1041         if( p_input && ( p_input->b_dead || !vlc_object_alive (p_input) ) )
1042         {
1043             emit inputChanged( p_input );
1044             var_DelCallback( p_input, "state", PLItemChanged, this );
1045             vlc_object_release( p_input );
1046             p_input = NULL;
1047             return;
1048         }
1049
1050         if( !p_input )
1051         {
1052             p_input = playlist_CurrentInput(THEPL);
1053             if( p_input )
1054             {
1055                 var_AddCallback( p_input, "state", PLItemChanged, this );
1056                 emit inputChanged( p_input );
1057             }
1058         }
1059     }
1060     else
1061     {
1062         /* remove previous stored p_input */
1063         if( p_input )
1064         {
1065             vlc_object_release( p_input );
1066             p_input = NULL;
1067         }
1068         /* we are working as a dialogs provider */
1069         p_input = playlist_CurrentInput( pl_Get(p_intf) );
1070         if( p_input )
1071         {
1072             emit inputChanged( p_input );
1073         }
1074     }
1075 }
1076
1077 /* Playlist Control functions */
1078 void MainInputManager::stop()
1079 {
1080    playlist_Stop( THEPL );
1081 }
1082
1083 void MainInputManager::next()
1084 {
1085    playlist_Next( THEPL );
1086 }
1087
1088 void MainInputManager::prev()
1089 {
1090    playlist_Prev( THEPL );
1091 }
1092
1093 void MainInputManager::prevOrReset()
1094 {
1095     if( !p_input || var_GetTime(  p_input , "time") < 10000 )
1096         playlist_Prev( THEPL );
1097     else
1098         getIM()->sliderUpdate( 0.0 );
1099 }
1100
1101 void MainInputManager::togglePlayPause()
1102 {
1103     /* No input, play */
1104     if( !p_input )
1105         playlist_Play( THEPL );
1106     else
1107         playlist_Pause( THEPL );
1108 }
1109
1110 void MainInputManager::play()
1111 {
1112     /* No input, play */
1113     if( !p_input )
1114         playlist_Play( THEPL );
1115     else
1116     {
1117         if( PLAYING_S != var_GetInteger( p_input, "state" ) )
1118         {
1119             playlist_Pause( THEPL );
1120         }
1121     }
1122 }
1123
1124 void MainInputManager::pause()
1125 {
1126     if(p_input && PLAYING_S == var_GetInteger( p_input, "state" ) )
1127     {
1128         playlist_Pause( THEPL );
1129     }
1130 }
1131
1132 void MainInputManager::toggleRandom()
1133 {
1134     var_ToggleBool( THEPL, "random" );
1135 }
1136
1137 void MainInputManager::notifyRepeatLoop()
1138 {
1139     int i_value = var_GetBool( THEPL, "loop" ) * REPEAT_ALL
1140               + var_GetBool( THEPL, "repeat" ) * REPEAT_ONE;
1141
1142     emit repeatLoopChanged( i_value );
1143 }
1144
1145 void MainInputManager::loopRepeatLoopStatus()
1146 {
1147     /* Toggle Normal -> Loop -> Repeat -> Normal ... */
1148     if( var_GetBool( THEPL, "repeat" ) )
1149         var_SetBool( THEPL, "repeat", false );
1150     else if( var_GetBool( THEPL, "loop" ) )
1151     {
1152         var_SetBool( THEPL, "loop", false );
1153         var_SetBool( THEPL, "repeat", true );
1154     }
1155     else
1156         var_SetBool( THEPL, "loop", true );
1157 }
1158
1159 void MainInputManager::activatePlayQuit( bool b_exit )
1160 {
1161     var_SetBool( THEPL, "play-and-exit", b_exit );
1162 }
1163
1164 bool MainInputManager::getPlayExitState()
1165 {
1166     return var_GetBool( THEPL, "play-and-exit" );
1167 }
1168
1169 bool MainInputManager::hasEmptyPlaylist()
1170 {
1171     playlist_Lock( THEPL );
1172     bool b_empty = playlist_IsEmpty( THEPL );
1173     playlist_Unlock( THEPL );
1174     return b_empty;
1175 }
1176
1177 /****************************
1178  * Static callbacks for MIM *
1179  ****************************/
1180 static int PLItemChanged( vlc_object_t *p_this, const char *psz_var,
1181                         vlc_value_t oldval, vlc_value_t, void *param )
1182 {
1183     VLC_UNUSED( p_this ); VLC_UNUSED( psz_var ); VLC_UNUSED( oldval );
1184
1185     MainInputManager *mim = (MainInputManager*)param;
1186
1187     IMEvent *event = new IMEvent( ItemChanged_Type );
1188     QApplication::postEvent( mim, event );
1189     return VLC_SUCCESS;
1190 }
1191
1192 static int LeafToParent( vlc_object_t *p_this, const char *psz_var,
1193                         vlc_value_t oldval, vlc_value_t newval, void *param )
1194 {
1195     VLC_UNUSED( p_this ); VLC_UNUSED( psz_var ); VLC_UNUSED( oldval );
1196     MainInputManager *mim = (MainInputManager*)param;
1197
1198     PLEvent *event = new PLEvent( LeafToParent_Type, newval.i_int );
1199
1200     QApplication::postEvent( mim, event );
1201     return VLC_SUCCESS;
1202 }
1203
1204 static int VolumeChanged( vlc_object_t *p_this, const char *psz_var,
1205                         vlc_value_t oldval, vlc_value_t newval, void *param )
1206 {
1207     VLC_UNUSED( p_this ); VLC_UNUSED( psz_var ); VLC_UNUSED( oldval ); VLC_UNUSED( newval );
1208
1209     MainInputManager *mim = (MainInputManager*)param;
1210
1211     IMEvent *event = new IMEvent( VolumeChanged_Type );
1212     QApplication::postEvent( mim, event );
1213     return VLC_SUCCESS;
1214 }
1215
1216 static int SoundMuteChanged( vlc_object_t *p_this, const char *psz_var,
1217                         vlc_value_t oldval, vlc_value_t newval, void *param )
1218 {
1219     VLC_UNUSED( p_this ); VLC_UNUSED( psz_var ); VLC_UNUSED( oldval ); VLC_UNUSED( newval );
1220
1221     MainInputManager *mim = (MainInputManager*)param;
1222
1223     IMEvent *event = new IMEvent( SoundMuteChanged_Type );
1224     QApplication::postEvent( mim, event );
1225     return VLC_SUCCESS;
1226 }
1227
1228 static int PLItemAppended
1229 ( vlc_object_t * obj, const char *var, vlc_value_t old, vlc_value_t cur, void *data )
1230 {
1231     VLC_UNUSED( obj ); VLC_UNUSED( var ); VLC_UNUSED( old );
1232     MainInputManager *mim = static_cast<MainInputManager*>(data);
1233     playlist_add_t *p_add = static_cast<playlist_add_t*>( cur.p_address );
1234
1235     PLEvent *event = new PLEvent( PLItemAppended_Type, p_add->i_item, p_add->i_node  );
1236     QApplication::postEvent( mim, event );
1237     event = new PLEvent( PLEmpty_Type, p_add->i_item, 0  );
1238     QApplication::postEvent( mim, event );
1239     return VLC_SUCCESS;
1240 }
1241 static int PLItemRemoved
1242 ( vlc_object_t * obj, const char *var, vlc_value_t old, vlc_value_t cur, void *data )
1243 {
1244     VLC_UNUSED( var ); VLC_UNUSED( old );
1245
1246     playlist_t *pl = (playlist_t *) obj;
1247     MainInputManager *mim = static_cast<MainInputManager*>(data);
1248
1249     PLEvent *event = new PLEvent( PLItemRemoved_Type, cur.i_int, 0  );
1250     QApplication::postEvent( mim, event );
1251     // can't use playlist_IsEmpty(  ) as it isn't true yet
1252     if ( pl->items.i_size == 1 ) // lock is held
1253     {
1254         event = new PLEvent( PLEmpty_Type, -1, 0 );
1255         QApplication::postEvent( mim, event );
1256     }
1257     return VLC_SUCCESS;
1258 }
1259
1260 static int RandomChanged
1261 ( vlc_object_t * obj, const char *var, vlc_value_t old, vlc_value_t cur, void *data )
1262 {
1263     VLC_UNUSED( obj ); VLC_UNUSED( var ); VLC_UNUSED( old ); VLC_UNUSED( cur );
1264
1265     MainInputManager *mim = static_cast<MainInputManager*>(data);
1266
1267     IMEvent *event = new IMEvent( RandomChanged_Type );
1268     QApplication::postEvent( mim, event );
1269     return VLC_SUCCESS;
1270 }
1271
1272 static int LoopOrRepeatChanged
1273 ( vlc_object_t * obj, const char *var, vlc_value_t old, vlc_value_t cur, void *data )
1274 {
1275     VLC_UNUSED( obj ); VLC_UNUSED( var ); VLC_UNUSED( old ); VLC_UNUSED( cur );
1276
1277     MainInputManager *mim = static_cast<MainInputManager*>(data);
1278
1279     IMEvent *event = new IMEvent( LoopOrRepeatChanged_Type );
1280     QApplication::postEvent( mim, event );
1281     return VLC_SUCCESS;
1282 }