modules/gui/qt4/components/playlist/playlist_model.cpp

   1 /*****************************************************************************
   2  * playlist_model.cpp : Manage playlist model
   3  ****************************************************************************
   4  * Copyright (C) 2006-2007 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  *          Ilkka Ollakkka <ileoo (at) videolan dot org>
   9  *          Jakob Leben <jleben@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 #ifdef HAVE_CONFIG_H
  27 # include "config.h"
  28 #endif
  29
  30 #include "qt4.hpp"
  31 #include "dialogs_provider.hpp"
  32 #include "components/playlist/playlist_model.hpp"
  33 #include "dialogs/mediainfo.hpp"
  34 #include "dialogs/playlist.hpp"
  35 #include <vlc_intf_strings.h>
  36
  37 #include "pixmaps/types/type_unknown.xpm"
  38
  39 #include <assert.h>
  40 #include <QIcon>
  41 #include <QFont>
  42 #include <QMenu>
  43 #include <QApplication>
  44 #include <QSettings>
  45
  46 #include "sorting.h"
  47
  48 QIcon PLModel::icons[ITEM_TYPE_NUMBER];
  49
  50 /*************************************************************************
  51  * Playlist model implementation
  52  *************************************************************************/
  53
  54 PLModel::PLModel( playlist_t *_p_playlist,  /* THEPL */
  55                   intf_thread_t *_p_intf,   /* main Qt p_intf */
  56                   playlist_item_t * p_root,
  57                   QObject *parent )         /* Basic Qt parent */
  58                   : QAbstractItemModel( parent )
  59 {
  60     p_intf            = _p_intf;
  61     p_playlist        = _p_playlist;
  62     i_cached_id       = -1;
  63     i_cached_input_id = -1;
  64     i_popup_item      = i_popup_parent = -1;
  65
  66     rootItem          = NULL; /* PLItem rootItem, will be set in rebuild( ) */
  67
  68     /* Icons initialization */
  69 #define ADD_ICON(type, x) icons[ITEM_TYPE_##type] = QIcon( x )
  70     ADD_ICON( UNKNOWN , type_unknown_xpm );
  71     ADD_ICON( FILE, ":/type/file" );
  72     ADD_ICON( DIRECTORY, ":/type/directory" );
  73     ADD_ICON( DISC, ":/type/disc" );
  74     ADD_ICON( CDDA, ":/type/cdda" );
  75     ADD_ICON( CARD, ":/type/capture-card" );
  76     ADD_ICON( NET, ":/type/net" );
  77     ADD_ICON( PLAYLIST, ":/type/playlist" );
  78     ADD_ICON( NODE, ":/type/node" );
  79 #undef ADD_ICON
  80
  81     rebuild( p_root );
  82     CONNECT( THEMIM->getIM(), metaChanged( input_item_t *),
  83             this, processInputItemUpdate( input_item_t *) );
  84     CONNECT( THEMIM, inputChanged( input_thread_t * ),
  85             this, processInputItemUpdate( input_thread_t* ) );
  86     CONNECT( THEMIM, playlistItemAppended( int, int ),
  87              this, processItemAppend( int, int ) );
  88     CONNECT( THEMIM, playlistItemRemoved( int ),
  89              this, processItemRemoval( int ) );
  90 }
  91
  92 PLModel::~PLModel()
  93 {
  94     delete rootItem;
  95 }
  96
  97 Qt::DropActions PLModel::supportedDropActions() const
  98 {
  99     return Qt::CopyAction; /* Why not Qt::MoveAction */
 100 }
 101
 102 Qt::ItemFlags PLModel::flags( const QModelIndex &index ) const
 103 {
 104     Qt::ItemFlags flags = QAbstractItemModel::flags( index );
 105
 106     PLItem *item = index.isValid() ? getItem( index ) : rootItem;
 107
 108     if( canEdit() )
 109     {
 110         PL_LOCK;
 111         playlist_item_t *plItem =
 112             playlist_ItemGetById( p_playlist, item->i_id );
 113
 114         if ( plItem && ( plItem->i_children > -1 ) )
 115             flags |= Qt::ItemIsDropEnabled;
 116
 117         PL_UNLOCK;
 118
 119     }
 120     flags |= Qt::ItemIsDragEnabled;
 121
 122     return flags;
 123 }
 124
 125 QStringList PLModel::mimeTypes() const
 126 {
 127     QStringList types;
 128     types << "vlc/qt-playlist-item";
 129     return types;
 130 }
 131
 132 QMimeData *PLModel::mimeData( const QModelIndexList &indexes ) const
 133 {
 134     QMimeData *mimeData = new QMimeData();
 135     QByteArray encodedData;
 136     QDataStream stream( &encodedData, QIODevice::WriteOnly );
 137     QModelIndexList list;
 138
 139     foreach( const QModelIndex &index, indexes ) {
 140         if( index.isValid() && index.column() == 0 )
 141             list.append(index);
 142     }
 143
 144     qSort(list);
 145
 146     foreach( const QModelIndex &index, list ) {
 147         PLItem *item = getItem( index );
 148         stream.writeRawData( (char*) &item, sizeof( PLItem* ) );
 149     }
 150     mimeData->setData( "vlc/qt-playlist-item", encodedData );
 151     return mimeData;
 152 }
 153
 154 /* Drop operation */
 155 bool PLModel::dropMimeData( const QMimeData *data, Qt::DropAction action,
 156                            int row, int column, const QModelIndex &parent )
 157 {
 158     if( data->hasFormat( "vlc/qt-playlist-item" ) )
 159     {
 160         if( action == Qt::IgnoreAction )
 161             return true;
 162
 163         PLItem *parentItem = parent.isValid() ? getItem( parent ) : rootItem;
 164
 165         PL_LOCK;
 166         playlist_item_t *p_parent =
 167             playlist_ItemGetById( p_playlist, parentItem->i_id );
 168         if( !p_parent || p_parent->i_children == -1 )
 169         {
 170             PL_UNLOCK;
 171             return false;
 172         }
 173
 174         bool copy = false;
 175         playlist_item_t *p_pl = p_playlist->p_playing;
 176         playlist_item_t *p_ml = p_playlist->p_media_library;
 177         if
 178         (
 179             row == -1 && (
 180             ( p_pl && p_parent == p_pl ) ||
 181             ( p_ml && p_parent == p_ml ) )
 182         )
 183             copy = true;
 184         PL_UNLOCK;
 185
 186         QByteArray encodedData = data->data( "vlc/qt-playlist-item" );
 187         if( copy )
 188             dropAppendCopy( encodedData, parentItem );
 189         else
 190             dropMove( encodedData, parentItem, row );
 191     }
 192     return true;
 193 }
 194
 195 void PLModel::dropAppendCopy( QByteArray& data, PLItem *target )
 196 {
 197     QDataStream stream( &data, QIODevice::ReadOnly );
 198
 199     PL_LOCK;
 200     playlist_item_t *p_parent =
 201             playlist_ItemGetById( p_playlist, target->i_id );
 202     while( !stream.atEnd() )
 203     {
 204         PLItem *item;
 205         stream.readRawData( (char*)&item, sizeof(PLItem*) );
 206         playlist_item_t *p_item = playlist_ItemGetById( p_playlist, item->i_id );
 207         if( !p_item ) continue;
 208         input_item_t *p_input = p_item->p_input;
 209         playlist_AddExt ( p_playlist,
 210             p_input->psz_uri, p_input->psz_name,
 211             PLAYLIST_APPEND | PLAYLIST_SPREPARSE, PLAYLIST_END,
 212             p_input->i_duration,
 213             p_input->i_options, p_input->ppsz_options, p_input->optflagc,
 214             p_parent == p_playlist->p_playing,
 215             true );
 216     }
 217     PL_UNLOCK;
 218 }
 219
 220 void PLModel::dropMove( QByteArray& data, PLItem *target, int row )
 221 {
 222     QDataStream stream( &data, QIODevice::ReadOnly );
 223     QList<PLItem*> model_items;
 224     QList<int> ids;
 225     int new_pos = row == -1 ? target->children.size() : row;
 226     int model_pos = new_pos;
 227     while( !stream.atEnd() )
 228     {
 229         PLItem *item;
 230         stream.readRawData( (char*)&item, sizeof(PLItem*) );
 231
 232         /* better not try to move a node into itself: */
 233         PLItem *climber = target;
 234         while( climber )
 235         {
 236             if( climber == item ) break;
 237             climber = climber->parentItem;
 238         }
 239         if( climber ) continue;
 240
 241         if( item->parentItem == target &&
 242             target->children.indexOf( item ) < model_pos )
 243                 model_pos--;
 244
 245         ids.append( item->i_id );
 246         model_items.append( item );
 247
 248         takeItem( item );
 249     }
 250     int count = ids.size();
 251     if( count )
 252     {
 253         playlist_item_t *pp_items[count];
 254
 255         PL_LOCK;
 256         for( int i = 0; i < count; i++ )
 257         {
 258             playlist_item_t *p_item = playlist_ItemGetById( p_playlist, ids[i] );
 259             if( !p_item )
 260             {
 261                 PL_UNLOCK;
 262                 return;
 263             }
 264             pp_items[i] = p_item;
 265         }
 266         playlist_item_t *p_parent =
 267             playlist_ItemGetById( p_playlist, target->i_id );
 268         playlist_TreeMoveMany( p_playlist, count, pp_items, p_parent,
 269             new_pos );
 270         PL_UNLOCK;
 271
 272         insertChildren( target, model_items, model_pos );
 273     }
 274 }
 275
 276 /* remove item with its id */
 277 void PLModel::removeItem( int i_id )
 278 {
 279     PLItem *item = findById( rootItem, i_id );
 280     removeItem( item );
 281 }
 282
 283 void PLModel::activateItem( const QModelIndex &index )
 284 {
 285     assert( index.isValid() );
 286     PLItem *item = getItem( index );
 287     assert( item );
 288     PL_LOCK;
 289     playlist_item_t *p_item = playlist_ItemGetById( p_playlist, item->i_id );
 290     activateItem( p_item );
 291     PL_UNLOCK;
 292 }
 293
 294 /* Must be entered with lock */
 295 void PLModel::activateItem( playlist_item_t *p_item )
 296 {
 297     if( !p_item ) return;
 298     playlist_item_t *p_parent = p_item;
 299     while( p_parent )
 300     {
 301         if( p_parent->i_id == rootItem->i_id ) break;
 302         p_parent = p_parent->p_parent;
 303     }
 304     if( p_parent )
 305         playlist_Control( p_playlist, PLAYLIST_VIEWPLAY, pl_Locked,
 306                           p_parent, p_item );
 307 }
 308
 309 /****************** Base model mandatory implementations *****************/
 310 QVariant PLModel::data( const QModelIndex &index, int role ) const
 311 {
 312     if( !index.isValid() ) return QVariant();
 313     PLItem *item = getItem( index );
 314     if( role == Qt::DisplayRole )
 315     {
 316         int metadata = columnToMeta( index.column() );
 317         if( metadata == COLUMN_END ) return QVariant();
 318
 319         QString returninfo;
 320         if( metadata == COLUMN_NUMBER )
 321             returninfo = QString::number( index.row() + 1 );
 322         else
 323         {
 324             char *psz = psz_column_meta( item->p_input, metadata );
 325             returninfo = qfu( psz );
 326             free( psz );
 327         }
 328         return QVariant( returninfo );
 329     }
 330     else if( role == Qt::DecorationRole && index.column() == 0  )
 331     {
 332         /* Used to segfault here because i_type wasn't always initialized */
 333         return QVariant( PLModel::icons[item->p_input->i_type] );
 334     }
 335     else if( role == Qt::FontRole )
 336     {
 337         if( isCurrent( index ) )
 338         {
 339             QFont f; f.setBold( true ); return QVariant( f );
 340         }
 341     }
 342     else if( role == Qt::BackgroundRole && isCurrent( index ) )
 343     {
 344         return QVariant( QBrush( Qt::gray ) );
 345     }
 346     else if( role == IsCurrentRole ) return QVariant( isCurrent( index ) );
 347
 348     return QVariant();
 349 }
 350
 351 bool PLModel::isCurrent( const QModelIndex &index ) const
 352 {
 353     input_thread_t *p_input_thread = THEMIM->getInput();
 354     if( !p_input_thread ) return false;
 355     return getItem( index )->p_input == input_GetItem( p_input_thread );
 356 }
 357
 358 int PLModel::itemId( const QModelIndex &index ) const
 359 {
 360     return getItem( index )->i_id;
 361 }
 362
 363 QVariant PLModel::headerData( int section, Qt::Orientation orientation,
 364                               int role ) const
 365 {
 366     if (orientation != Qt::Horizontal || role != Qt::DisplayRole)
 367         return QVariant();
 368
 369     int meta_col = columnToMeta( section );
 370
 371     if( meta_col == COLUMN_END ) return QVariant();
 372
 373     return QVariant( qfu( psz_column_title( meta_col ) ) );
 374 }
 375
 376 QModelIndex PLModel::index( int row, int column, const QModelIndex &parent )
 377                   const
 378 {
 379     PLItem *parentItem = parent.isValid() ? getItem( parent ) : rootItem;
 380
 381     PLItem *childItem = parentItem->child( row );
 382     if( childItem )
 383         return createIndex( row, column, childItem );
 384     else
 385         return QModelIndex();
 386 }
 387
 388 QModelIndex PLModel::index( int i_id, int c )
 389 {
 390   return index( findById( rootItem, i_id ), c );
 391 }
 392
 393 /* Return the index of a given item */
 394 QModelIndex PLModel::index( PLItem *item, int column ) const
 395 {
 396     if( !item ) return QModelIndex();
 397     const PLItem *parent = item->parent();
 398     if( parent )
 399         return createIndex( parent->children.lastIndexOf( item ),
 400                             column, item );
 401     return QModelIndex();
 402 }
 403
 404 QModelIndex PLModel::currentIndex()
 405 {
 406     input_thread_t *p_input_thread = THEMIM->getInput();
 407     if( !p_input_thread ) return QModelIndex();
 408     PLItem *item = findByInput( rootItem, input_GetItem( p_input_thread )->i_id );
 409     return index( item, 0 );
 410 }
 411
 412 QModelIndex PLModel::parent( const QModelIndex &index ) const
 413 {
 414     if( !index.isValid() ) return QModelIndex();
 415
 416     PLItem *childItem = getItem( index );
 417     if( !childItem )
 418     {
 419         msg_Err( p_playlist, "NULL CHILD" );
 420         return QModelIndex();
 421     }
 422
 423     PLItem *parentItem = childItem->parent();
 424     if( !parentItem || parentItem == rootItem ) return QModelIndex();
 425     if( !parentItem->parentItem )
 426     {
 427         msg_Err( p_playlist, "No parent parent, trying row 0 " );
 428         msg_Err( p_playlist, "----- PLEASE REPORT THIS ------" );
 429         return createIndex( 0, 0, parentItem );
 430     }
 431     QModelIndex ind = createIndex(parentItem->row(), 0, parentItem);
 432     return ind;
 433 }
 434
 435 int PLModel::columnCount( const QModelIndex &i) const
 436 {
 437     return columnFromMeta( COLUMN_END );
 438 }
 439
 440 int PLModel::rowCount( const QModelIndex &parent ) const
 441 {
 442     PLItem *parentItem = parent.isValid() ? getItem( parent ) : rootItem;
 443     return parentItem->childCount();
 444 }
 445
 446 QStringList PLModel::selectedURIs()
 447 {
 448     QStringList lst;
 449     for( int i = 0; i < current_selection.size(); i++ )
 450     {
 451         PLItem *item = getItem( current_selection[i] );
 452         if( item )
 453         {
 454             PL_LOCK;
 455             playlist_item_t *p_item = playlist_ItemGetById( p_playlist, item->i_id );
 456             if( p_item )
 457             {
 458                 char *psz = input_item_GetURI( p_item->p_input );
 459                 if( psz )
 460                 {
 461                     lst.append( qfu(psz) );
 462                     free( psz );
 463                 }
 464             }
 465             PL_UNLOCK;
 466         }
 467     }
 468     return lst;
 469 }
 470
 471
 472 /************************* Lookups *****************************/
 473
 474 PLItem *PLModel::findById( PLItem *root, int i_id )
 475 {
 476     return findInner( root, i_id, false );
 477 }
 478
 479 PLItem *PLModel::findByInput( PLItem *root, int i_id )
 480 {
 481     PLItem *result = findInner( root, i_id, true );
 482     return result;
 483 }
 484
 485 #define CACHE( i, p ) { i_cached_id = i; p_cached_item = p; }
 486 #define ICACHE( i, p ) { i_cached_input_id = i; p_cached_item_bi = p; }
 487
 488 PLItem * PLModel::findInner( PLItem *root, int i_id, bool b_input )
 489 {
 490     if( !root ) return NULL;
 491     if( ( !b_input && i_cached_id == i_id) ||
 492         ( b_input && i_cached_input_id ==i_id ) )
 493     {
 494         return b_input ? p_cached_item_bi : p_cached_item;
 495     }
 496
 497     if( !b_input && root->i_id == i_id )
 498     {
 499         CACHE( i_id, root );
 500         return root;
 501     }
 502     else if( b_input && root->p_input->i_id == i_id )
 503     {
 504         ICACHE( i_id, root );
 505         return root;
 506     }
 507
 508     QList<PLItem *>::iterator it = root->children.begin();
 509     while ( it != root->children.end() )
 510     {
 511         if( !b_input && (*it)->i_id == i_id )
 512         {
 513             CACHE( i_id, (*it) );
 514             return p_cached_item;
 515         }
 516         else if( b_input && (*it)->p_input->i_id == i_id )
 517         {
 518             ICACHE( i_id, (*it) );
 519             return p_cached_item_bi;
 520         }
 521         if( (*it)->children.size() )
 522         {
 523             PLItem *childFound = findInner( (*it), i_id, b_input );
 524             if( childFound )
 525             {
 526                 if( b_input )
 527                     ICACHE( i_id, childFound )
 528                 else
 529                     CACHE( i_id, childFound )
 530                 return childFound;
 531             }
 532         }
 533         it++;
 534     }
 535     return NULL;
 536 }
 537 #undef CACHE
 538 #undef ICACHE
 539
 540 int PLModel::columnToMeta( int _column )
 541 {
 542     int meta = 1;
 543     int column = 0;
 544
 545     while( column != _column && meta != COLUMN_END )
 546     {
 547         meta <<= 1;
 548         column++;
 549     }
 550
 551     return meta;
 552 }
 553
 554 int PLModel::columnFromMeta( int meta_col )
 555 {
 556     int meta = 1;
 557     int column = 0;
 558
 559     while( meta != meta_col && meta != COLUMN_END )
 560     {
 561         meta <<= 1;
 562         column++;
 563     }
 564
 565     return column;
 566 }
 567
 568 bool PLModel::canEdit() const
 569 {
 570   return (
 571     rootItem != NULL &&
 572     (
 573       rootItem->p_input == p_playlist->p_playing->p_input ||
 574       (
 575         p_playlist->p_media_library &&
 576         rootItem->p_input == p_playlist->p_media_library->p_input
 577       )
 578     )
 579   );
 580 }
 581 /************************* Updates handling *****************************/
 582
 583 /**** Events processing ****/
 584 void PLModel::processInputItemUpdate( input_thread_t *p_input )
 585 {
 586     if( !p_input ) return;
 587     if( p_input && !( p_input->b_dead || !vlc_object_alive( p_input ) ) )
 588     {
 589         PLItem *item = findByInput( rootItem, input_GetItem( p_input )->i_id );
 590         if( item ) emit currentChanged( index( item, 0 ) );
 591     }
 592     processInputItemUpdate( input_GetItem( p_input ) );
 593 }
 594
 595 void PLModel::processInputItemUpdate( input_item_t *p_item )
 596 {
 597     if( !p_item ||  p_item->i_id <= 0 ) return;
 598     PLItem *item = findByInput( rootItem, p_item->i_id );
 599     if( item )
 600         updateTreeItem( item );
 601 }
 602
 603 void PLModel::processItemRemoval( int i_id )
 604 {
 605     if( i_id <= 0 ) return;
 606     removeItem( i_id );
 607 }
 608
 609 void PLModel::processItemAppend( int i_item, int i_parent )
 610 {
 611     playlist_item_t *p_item = NULL;
 612     PLItem *newItem = NULL;
 613     input_thread_t *currentInputThread;
 614     int pos;
 615
 616     PLItem *nodeItem = findById( rootItem, i_parent );
 617     if( !nodeItem ) return;
 618
 619     foreach( PLItem *existing, nodeItem->children )
 620       if( existing->i_id == i_item ) return;
 621
 622     PL_LOCK;
 623     p_item = playlist_ItemGetById( p_playlist, i_item );
 624     if( !p_item || p_item->i_flags & PLAYLIST_DBL_FLAG ) goto end;
 625
 626     for( pos = 0; pos < p_item->p_parent->i_children; pos++ )
 627         if( p_item->p_parent->pp_children[pos] == p_item ) break;
 628
 629     newItem = new PLItem( p_item, nodeItem );
 630     PL_UNLOCK;
 631
 632     beginInsertRows( index( nodeItem, 0 ), pos, pos );
 633     nodeItem->insertChild( newItem, pos );
 634     endInsertRows();
 635
 636     return;
 637 end:
 638     PL_UNLOCK;
 639     return;
 640 }
 641
 642
 643 void PLModel::rebuild()
 644 {
 645     rebuild( NULL );
 646 }
 647
 648 void PLModel::rebuild( playlist_item_t *p_root )
 649 {
 650     playlist_item_t* p_item;
 651
 652     /* Invalidate cache */
 653     i_cached_id = i_cached_input_id = -1;
 654
 655     if( rootItem ) rootItem->removeChildren();
 656
 657     PL_LOCK;
 658     if( p_root )
 659     {
 660         delete rootItem;
 661         rootItem = new PLItem( p_root );
 662     }
 663     assert( rootItem );
 664     /* Recreate from root */
 665     updateChildren( rootItem );
 666     PL_UNLOCK;
 667
 668     /* And signal the view */
 669     reset();
 670
 671     if( p_root ) emit rootChanged();
 672 }
 673
 674 void PLModel::takeItem( PLItem *item )
 675 {
 676     assert( item );
 677     PLItem *parent = item->parentItem;
 678     assert( parent );
 679     int i_index = parent->children.indexOf( item );
 680
 681     beginRemoveRows( index( parent, 0 ), i_index, i_index );
 682     parent->takeChildAt( i_index );
 683     endRemoveRows();
 684 }
 685
 686 void PLModel::insertChildren( PLItem *node, QList<PLItem*>& items, int i_pos )
 687 {
 688     assert( node );
 689     int count = items.size();
 690     if( !count ) return;
 691     beginInsertRows( index( node, 0 ), i_pos, i_pos + count - 1 );
 692     for( int i = 0; i < count; i++ )
 693     {
 694         node->children.insert( i_pos + i, items[i] );
 695         items[i]->parentItem = node;
 696     }
 697     endInsertRows();
 698 }
 699
 700 void PLModel::removeItem( PLItem *item )
 701 {
 702     if( !item ) return;
 703
 704     if( item->i_id == i_cached_id ) i_cached_id = -1;
 705     i_cached_input_id = -1;
 706
 707     if( item->parentItem ) {
 708         int i = item->parentItem->children.indexOf( item );
 709         beginRemoveRows( index( item->parentItem, 0), i, i );
 710         item->parentItem->children.removeAt(i);
 711         delete item;
 712         endRemoveRows();
 713     }
 714     else delete item;
 715
 716     if(item == rootItem)
 717     {
 718         rootItem = NULL;
 719         rebuild( p_playlist->p_playing );
 720     }
 721 }
 722
 723 /* This function must be entered WITH the playlist lock */
 724 void PLModel::updateChildren( PLItem *root )
 725 {
 726     playlist_item_t *p_node = playlist_ItemGetById( p_playlist, root->i_id );
 727     updateChildren( p_node, root );
 728 }
 729
 730 /* This function must be entered WITH the playlist lock */
 731 void PLModel::updateChildren( playlist_item_t *p_node, PLItem *root )
 732 {
 733     for( int i = 0; i < p_node->i_children ; i++ )
 734     {
 735         if( p_node->pp_children[i]->i_flags & PLAYLIST_DBL_FLAG ) continue;
 736         PLItem *newItem =  new PLItem( p_node->pp_children[i], root );
 737         root->appendChild( newItem );
 738         if( p_node->pp_children[i]->i_children != -1 )
 739             updateChildren( p_node->pp_children[i], newItem );
 740     }
 741 }
 742
 743 /* Function doesn't need playlist-lock, as we don't touch playlist_item_t stuff here*/
 744 void PLModel::updateTreeItem( PLItem *item )
 745 {
 746     if( !item ) return;
 747     emit dataChanged( index( item, 0 ) , index( item, columnCount( QModelIndex() ) ) );
 748 }
 749
 750 /************************* Actions ******************************/
 751
 752 /**
 753  * Deletion, here we have to do a ugly slow hack as we retrieve the full
 754  * list of indexes to delete at once: when we delete a node and all of
 755  * its children, we need to update the list.
 756  * Todo: investigate whethere we can use ranges to be sure to delete all items?
 757  */
 758 void PLModel::doDelete( QModelIndexList selected )
 759 {
 760     if( !canEdit() ) return;
 761
 762     while( !selected.isEmpty() )
 763     {
 764         QModelIndex index = selected[0];
 765         selected.removeAt( 0 );
 766
 767         if( index.column() != 0 ) continue;
 768
 769         PLItem *item = getItem( index );
 770         if( item->children.size() )
 771             recurseDelete( item->children, &selected );
 772
 773         PL_LOCK;
 774         playlist_DeleteFromInput( p_playlist, item->p_input, pl_Locked );
 775         PL_UNLOCK;
 776
 777         removeItem( item );
 778     }
 779 }
 780
 781 void PLModel::recurseDelete( QList<PLItem*> children, QModelIndexList *fullList )
 782 {
 783     for( int i = children.size() - 1; i >= 0 ; i-- )
 784     {
 785         PLItem *item = children[i];
 786         if( item->children.size() )
 787             recurseDelete( item->children, fullList );
 788         fullList->removeAll( index( item, 0 ) );
 789     }
 790 }
 791
 792 /******* Volume III: Sorting and searching ********/
 793 void PLModel::sort( int column, Qt::SortOrder order )
 794 {
 795     sort( rootItem->i_id, column, order );
 796 }
 797
 798 void PLModel::sort( int i_root_id, int column, Qt::SortOrder order )
 799 {
 800     msg_Dbg( p_intf, "Sorting by column %i, order %i", column, order );
 801
 802     int meta = columnToMeta( column );
 803     if( meta == COLUMN_END ) return;
 804
 805     PLItem *item = findById( rootItem, i_root_id );
 806     if( !item ) return;
 807     QModelIndex qIndex = index( item, 0 );
 808     int count = item->children.size();
 809     if( count )
 810     {
 811         beginRemoveRows( qIndex, 0, count - 1 );
 812         item->removeChildren();
 813         endRemoveRows( );
 814     }
 815
 816     PL_LOCK;
 817     {
 818         playlist_item_t *p_root = playlist_ItemGetById( p_playlist,
 819                                                         i_root_id );
 820         if( p_root )
 821         {
 822             playlist_RecursiveNodeSort( p_playlist, p_root,
 823                                         i_column_sorting( meta ),
 824                                         order == Qt::AscendingOrder ?
 825                                             ORDER_NORMAL : ORDER_REVERSE );
 826         }
 827     }
 828
 829     i_cached_id = i_cached_input_id = -1;
 830
 831     if( count )
 832     {
 833         beginInsertRows( qIndex, 0, count - 1 );
 834         updateChildren( item );
 835         endInsertRows( );
 836     }
 837     PL_UNLOCK;
 838 }
 839
 840 void PLModel::search( const QString& search_text, const QModelIndex & idx, bool b_recursive )
 841 {
 842     /** \todo Fire the search with a small delay ? */
 843     PL_LOCK;
 844     {
 845         playlist_item_t *p_root = playlist_ItemGetById( p_playlist,
 846                                                         itemId( idx ) );
 847         assert( p_root );
 848         const char *psz_name = search_text.toUtf8().data();
 849         playlist_LiveSearchUpdate( p_playlist , p_root, psz_name, b_recursive );
 850
 851         if( idx.isValid() )
 852         {
 853             PLItem *searchRoot = getItem( idx );
 854
 855             beginRemoveRows( idx, 0, searchRoot->children.size() - 1 );
 856             searchRoot->removeChildren();
 857             endRemoveRows( );
 858
 859             beginInsertRows( idx, 0, searchRoot->children.size() - 1 );
 860             updateChildren( searchRoot );
 861             endInsertRows();
 862
 863             PL_UNLOCK;
 864             return;
 865         }
 866     }
 867     PL_UNLOCK;
 868     rebuild();
 869 }
 870
 871 /*********** Popup *********/
 872 bool PLModel::popup( const QModelIndex & index, const QPoint &point, const QModelIndexList &list )
 873 {
 874     int i_id = index.isValid() ? itemId( index ) : rootItem->i_id;
 875
 876     PL_LOCK;
 877     playlist_item_t *p_item = playlist_ItemGetById( p_playlist, i_id );
 878     if( !p_item )
 879     {
 880         PL_UNLOCK;
 881         return false;
 882     }
 883
 884     i_popup_item = index.isValid() ? p_item->i_id : -1;
 885     i_popup_parent = index.isValid() ?
 886         ( p_item->p_parent ? p_item->p_parent->i_id : -1 ) :
 887         ( rootItem->i_id );
 888     i_popup_column = index.column();
 889
 890     bool tree = var_InheritBool( p_intf, "playlist-tree" );
 891
 892     PL_UNLOCK;
 893
 894     current_selection = list;
 895
 896     QMenu menu;
 897     if( i_popup_item > -1 )
 898     {
 899         menu.addAction( QIcon( ":/menu/play" ), qtr(I_POP_PLAY), this, SLOT( popupPlay() ) );
 900         menu.addAction( QIcon( ":/buttons/playlist/playlist_remove" ),
 901                         qtr(I_POP_DEL), this, SLOT( popupDel() ) );
 902         menu.addSeparator();
 903         menu.addAction( QIcon( ":/menu/stream" ),
 904                         qtr(I_POP_STREAM), this, SLOT( popupStream() ) );
 905         menu.addAction( qtr(I_POP_SAVE), this, SLOT( popupSave() ) );
 906         menu.addSeparator();
 907         menu.addAction( QIcon( ":/menu/info" ), qtr(I_POP_INFO), this, SLOT( popupInfo() ) );
 908         menu.addAction( QIcon( ":/type/folder-grey" ),
 909                         qtr( I_POP_EXPLORE ), this, SLOT( popupExplore() ) );
 910     }
 911     if( canEdit() )
 912     {
 913         QIcon addIcon( ":/buttons/playlist/playlist_add" );
 914         menu.addSeparator();
 915         if( tree ) menu.addAction( addIcon, qtr(I_POP_NEWFOLDER), this, SLOT( popupAddNode() ) );
 916         if( rootItem->i_id == THEPL->p_playing->i_id )
 917         {
 918             menu.addAction( addIcon, qtr(I_PL_ADDF), THEDP, SLOT( simplePLAppendDialog()) );
 919             menu.addAction( addIcon, qtr(I_PL_ADDDIR), THEDP, SLOT( PLAppendDir()) );
 920             menu.addAction( addIcon, qtr(I_OP_ADVOP), THEDP, SLOT( PLAppendDialog()) );
 921         }
 922         else if( THEPL->p_media_library &&
 923                     rootItem->i_id == THEPL->p_media_library->i_id )
 924         {
 925             menu.addAction( addIcon, qtr(I_PL_ADDF), THEDP, SLOT( simpleMLAppendDialog()) );
 926             menu.addAction( addIcon, qtr(I_PL_ADDDIR), THEDP, SLOT( MLAppendDir() ) );
 927             menu.addAction( addIcon, qtr(I_OP_ADVOP), THEDP, SLOT( MLAppendDialog() ) );
 928         }
 929     }
 930     if( i_popup_item > -1 )
 931     {
 932         menu.addSeparator();
 933         QMenu *sort_menu = menu.addMenu( qtr( "Sort by" ) + QString(" ") +
 934             qfu( psz_column_title( columnToMeta( index.column() ) ) ) );
 935         sort_menu->addAction( qtr( "Ascending" ),
 936             this, SLOT( popupSortAsc() ) );
 937         sort_menu->addAction( qtr( "Descending" ),
 938             this, SLOT( popupSortDesc() ) );
 939     }
 940     if( !menu.isEmpty() )
 941     {
 942         menu.exec( point ); return true;
 943     }
 944     else return false;
 945 }
 946
 947 void PLModel::popupDel()
 948 {
 949     doDelete( current_selection );
 950 }
 951
 952 void PLModel::popupPlay()
 953 {
 954     PL_LOCK;
 955     {
 956         playlist_item_t *p_item = playlist_ItemGetById( p_playlist,
 957                                                         i_popup_item );
 958         activateItem( p_item );
 959     }
 960     PL_UNLOCK;
 961 }
 962
 963 void PLModel::popupInfo()
 964 {
 965     PL_LOCK;
 966     playlist_item_t *p_item = playlist_ItemGetById( p_playlist,
 967                                                     i_popup_item );
 968     if( p_item )
 969     {
 970         input_item_t* p_input = p_item->p_input;
 971         vlc_gc_incref( p_input );
 972         PL_UNLOCK;
 973         MediaInfoDialog *mid = new MediaInfoDialog( p_intf, p_input );
 974         vlc_gc_decref( p_input );
 975         mid->setParent( PlaylistDialog::getInstance( p_intf ),
 976                         Qt::Dialog );
 977         mid->show();
 978     } else
 979         PL_UNLOCK;
 980 }
 981
 982 void PLModel::popupStream()
 983 {
 984     QStringList mrls = selectedURIs();
 985     if( !mrls.isEmpty() )
 986         THEDP->streamingDialog( NULL, mrls[0], false );
 987
 988 }
 989
 990 void PLModel::popupSave()
 991 {
 992     QStringList mrls = selectedURIs();
 993     if( !mrls.isEmpty() )
 994         THEDP->streamingDialog( NULL, mrls[0] );
 995 }
 996
 997 #include <QUrl>
 998 #include <QFileInfo>
 999 #include <QDesktopServices>
1000 void PLModel::popupExplore()
1001 {
1002     PL_LOCK;
1003     playlist_item_t *p_item = playlist_ItemGetById( p_playlist,
1004                                                     i_popup_item );
1005     if( p_item )
1006     {
1007        input_item_t *p_input = p_item->p_input;
1008        char *psz_meta = input_item_GetURI( p_input );
1009        PL_UNLOCK;
1010        if( psz_meta )
1011        {
1012            const char *psz_access;
1013            const char *psz_demux;
1014            char  *psz_path;
1015            input_SplitMRL( &psz_access, &psz_demux, &psz_path, psz_meta );
1016
1017            if( EMPTY_STR( psz_access ) ||
1018                !strncasecmp( psz_access, "file", 4 ) ||
1019                !strncasecmp( psz_access, "dire", 4 ) )
1020            {
1021                QFileInfo info( qfu( psz_meta ) );
1022                QDesktopServices::openUrl(
1023                                QUrl::fromLocalFile( info.absolutePath() ) );
1024            }
1025            free( psz_meta );
1026        }
1027     }
1028     else
1029         PL_UNLOCK;
1030 }
1031
1032 #include <QInputDialog>
1033 void PLModel::popupAddNode()
1034 {
1035     bool ok;
1036     QString name = QInputDialog::getText( PlaylistDialog::getInstance( p_intf ),
1037         qtr( "Create Folder" ), qtr( "Enter name for new folder:" ),
1038         QLineEdit::Normal, QString(), &ok);
1039     if( !ok || name.isEmpty() ) return;
1040     PL_LOCK;
1041     playlist_item_t *p_item = playlist_ItemGetById( p_playlist,
1042                                                     i_popup_parent );
1043     if( p_item )
1044     {
1045         playlist_NodeCreate( p_playlist, qtu( name ), p_item, 0, NULL );
1046     }
1047     PL_UNLOCK;
1048 }
1049
1050 void PLModel::popupSortAsc()
1051 {
1052     sort( i_popup_parent, i_popup_column, Qt::AscendingOrder );
1053 }
1054
1055 void PLModel::popupSortDesc()
1056 {
1057     sort( i_popup_parent, i_popup_column, Qt::DescendingOrder );
1058 }