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 #include <QUrl>
  46 #include <QFileInfo>
  47 #include <QDesktopServices>
  48 #include <QInputDialog>
  49
  50 #include "sorting.h"
  51
  52 #define I_NEW_DIR \
  53     I_DIR_OR_FOLDER( N_("Create Directory"), N_( "Create Folder" ) )
  54 #define I_NEW_DIR_NAME \
  55     I_DIR_OR_FOLDER( N_( "Enter name for new directory:" ), \
  56                      N_( "Enter name for new folder:" ) )
  57
  58 QIcon PLModel::icons[ITEM_TYPE_NUMBER];
  59
  60 /*************************************************************************
  61  * Playlist model implementation
  62  *************************************************************************/
  63
  64 PLModel::PLModel( playlist_t *_p_playlist,  /* THEPL */
  65                   intf_thread_t *_p_intf,   /* main Qt p_intf */
  66                   playlist_item_t * p_root,
  67                   QObject *parent )         /* Basic Qt parent */
  68                   : QAbstractItemModel( parent )
  69 {
  70     p_intf            = _p_intf;
  71     p_playlist        = _p_playlist;
  72     i_cached_id       = -1;
  73     i_cached_input_id = -1;
  74     i_popup_item      = i_popup_parent = -1;
  75     sortingMenu       = NULL;
  76
  77     rootItem          = NULL; /* PLItem rootItem, will be set in rebuild( ) */
  78
  79     /* Icons initialization */
  80 #define ADD_ICON(type, x) icons[ITEM_TYPE_##type] = QIcon( x )
  81     ADD_ICON( UNKNOWN , type_unknown_xpm );
  82     ADD_ICON( FILE, ":/type/file" );
  83     ADD_ICON( DIRECTORY, ":/type/directory" );
  84     ADD_ICON( DISC, ":/type/disc" );
  85     ADD_ICON( CDDA, ":/type/cdda" );
  86     ADD_ICON( CARD, ":/type/capture-card" );
  87     ADD_ICON( NET, ":/type/net" );
  88     ADD_ICON( PLAYLIST, ":/type/playlist" );
  89     ADD_ICON( NODE, ":/type/node" );
  90 #undef ADD_ICON
  91
  92     rebuild( p_root );
  93     DCONNECT( THEMIM->getIM(), metaChanged( input_item_t *),
  94              this, processInputItemUpdate( input_item_t *) );
  95     DCONNECT( THEMIM, inputChanged( input_thread_t * ),
  96              this, processInputItemUpdate( input_thread_t* ) );
  97     CONNECT( THEMIM, playlistItemAppended( int, int ),
  98              this, processItemAppend( int, int ) );
  99     CONNECT( THEMIM, playlistItemRemoved( int ),
 100              this, processItemRemoval( int ) );
 101 }
 102
 103 PLModel::~PLModel()
 104 {
 105     delete rootItem;
 106     delete sortingMenu;
 107 }
 108
 109 Qt::DropActions PLModel::supportedDropActions() const
 110 {
 111     return Qt::CopyAction | Qt::MoveAction;
 112 }
 113
 114 Qt::ItemFlags PLModel::flags( const QModelIndex &index ) const
 115 {
 116     Qt::ItemFlags flags = QAbstractItemModel::flags( index );
 117
 118     PLItem *item = index.isValid() ? getItem( index ) : rootItem;
 119
 120     if( canEdit() )
 121     {
 122         PL_LOCK;
 123         playlist_item_t *plItem =
 124             playlist_ItemGetById( p_playlist, item->i_id );
 125
 126         if ( plItem && ( plItem->i_children > -1 ) )
 127             flags |= Qt::ItemIsDropEnabled;
 128
 129         PL_UNLOCK;
 130
 131     }
 132     flags |= Qt::ItemIsDragEnabled;
 133
 134     return flags;
 135 }
 136
 137 QStringList PLModel::mimeTypes() const
 138 {
 139     QStringList types;
 140     types << "vlc/qt-input-items";
 141     return types;
 142 }
 143
 144 bool modelIndexLessThen( const QModelIndex &i1, const QModelIndex &i2 )
 145 {
 146     if( !i1.isValid() || !i2.isValid() ) return false;
 147     PLItem *item1 = static_cast<PLItem*>( i1.internalPointer() );
 148     PLItem *item2 = static_cast<PLItem*>( i2.internalPointer() );
 149     if( item1->parent() == item2->parent() ) return i1.row() < i2.row();
 150     else return *item1 < *item2;
 151 }
 152
 153 QMimeData *PLModel::mimeData( const QModelIndexList &indexes ) const
 154 {
 155     PlMimeData *plMimeData = new PlMimeData();
 156     QModelIndexList list;
 157
 158     foreach( const QModelIndex &index, indexes ) {
 159         if( index.isValid() && index.column() == 0 )
 160             list.append(index);
 161     }
 162
 163     qSort(list.begin(), list.end(), modelIndexLessThen);
 164
 165     PLItem *item = NULL;
 166     foreach( const QModelIndex &index, list ) {
 167         if( item )
 168         {
 169             PLItem *testee = getItem( index );
 170             while( testee->parent() )
 171             {
 172                 if( testee->parent() == item ||
 173                     testee->parent() == item->parent() ) break;
 174                 testee = testee->parent();
 175             }
 176             if( testee->parent() == item ) continue;
 177             item = getItem( index );
 178         }
 179         else
 180             item = getItem( index );
 181
 182         plMimeData->appendItem( item->p_input );
 183     }
 184
 185     return plMimeData;
 186 }
 187
 188 /* Drop operation */
 189 bool PLModel::dropMimeData( const QMimeData *data, Qt::DropAction action,
 190                            int row, int column, const QModelIndex &parent )
 191 {
 192     bool copy = action == Qt::CopyAction;
 193     if( !copy && action != Qt::MoveAction )
 194         return true;
 195
 196     const PlMimeData *plMimeData = qobject_cast<const PlMimeData*>( data );
 197     if( plMimeData )
 198     {
 199         if( copy )
 200             dropAppendCopy( plMimeData, getItem( parent ), row );
 201         else
 202             dropMove( plMimeData, getItem( parent ), row );
 203     }
 204     return true;
 205 }
 206
 207 void PLModel::dropAppendCopy( const PlMimeData *plMimeData, PLItem *target, int pos )
 208 {
 209     PL_LOCK;
 210
 211     playlist_item_t *p_parent =
 212             playlist_ItemGetByInput( p_playlist, target->p_input );
 213     if( !p_parent ) return;
 214
 215     if( pos == -1 ) pos = PLAYLIST_END;
 216
 217     QList<input_item_t*> inputItems = plMimeData->inputItems();
 218
 219     foreach( input_item_t* p_input, inputItems )
 220     {
 221         playlist_item_t *p_item = playlist_ItemGetByInput( p_playlist, p_input );
 222         if( !p_item ) continue;
 223         pos = playlist_NodeAddCopy( p_playlist, p_item, p_parent, pos );
 224     }
 225
 226     PL_UNLOCK;
 227 }
 228
 229 void PLModel::dropMove( const PlMimeData * plMimeData, PLItem *target, int row )
 230 {
 231     QList<input_item_t*> inputItems = plMimeData->inputItems();
 232     QList<PLItem*> model_items;
 233     playlist_item_t *pp_items[inputItems.size()];
 234
 235     PL_LOCK;
 236
 237     playlist_item_t *p_parent =
 238         playlist_ItemGetByInput( p_playlist, target->p_input );
 239
 240     if( !p_parent || row > p_parent->i_children )
 241     {
 242         PL_UNLOCK; return;
 243     }
 244
 245     int new_pos = row == -1 ? p_parent->i_children : row;
 246     int model_pos = new_pos;
 247     int i = 0;
 248
 249     foreach( input_item_t *p_input, inputItems )
 250     {
 251         playlist_item_t *p_item = playlist_ItemGetByInput( p_playlist, p_input );
 252         if( !p_item ) continue;
 253
 254         PLItem *item = findByInput( rootItem, p_input->i_id );
 255         if( !item ) continue;
 256
 257         /* Better not try to move a node into itself.
 258            Abort the whole operation in that case,
 259            because it is ambiguous. */
 260         PLItem *climber = target;
 261         while( climber )
 262         {
 263             if( climber == item )
 264             {
 265                 PL_UNLOCK; return;
 266             }
 267             climber = climber->parentItem;
 268         }
 269
 270         if( item->parentItem == target &&
 271             target->children.indexOf( item ) < new_pos )
 272                 model_pos--;
 273
 274         model_items.append( item );
 275         pp_items[i] = p_item;
 276         i++;
 277     }
 278
 279     if( model_items.isEmpty() )
 280     {
 281         PL_UNLOCK; return;
 282     }
 283
 284     playlist_TreeMoveMany( p_playlist, i, pp_items, p_parent, new_pos );
 285
 286     PL_UNLOCK;
 287
 288     foreach( PLItem *item, model_items )
 289         takeItem( item );
 290
 291     insertChildren( target, model_items, model_pos );
 292 }
 293
 294 /* remove item with its id */
 295 void PLModel::removeItem( int i_id )
 296 {
 297     PLItem *item = findById( rootItem, i_id );
 298     removeItem( item );
 299 }
 300
 301 void PLModel::activateItem( const QModelIndex &index )
 302 {
 303     assert( index.isValid() );
 304     PLItem *item = getItem( index );
 305     assert( item );
 306     PL_LOCK;
 307     playlist_item_t *p_item = playlist_ItemGetById( p_playlist, item->i_id );
 308     activateItem( p_item );
 309     PL_UNLOCK;
 310 }
 311
 312 /* Must be entered with lock */
 313 void PLModel::activateItem( playlist_item_t *p_item )
 314 {
 315     if( !p_item ) return;
 316     playlist_item_t *p_parent = p_item;
 317     while( p_parent )
 318     {
 319         if( p_parent->i_id == rootItem->i_id ) break;
 320         p_parent = p_parent->p_parent;
 321     }
 322     if( p_parent )
 323         playlist_Control( p_playlist, PLAYLIST_VIEWPLAY, pl_Locked,
 324                           p_parent, p_item );
 325 }
 326
 327 /****************** Base model mandatory implementations *****************/
 328 QVariant PLModel::data( const QModelIndex &index, int role ) const
 329 {
 330     if( !index.isValid() ) return QVariant();
 331     PLItem *item = getItem( index );
 332     if( role == Qt::DisplayRole )
 333     {
 334         int metadata = columnToMeta( index.column() );
 335         if( metadata == COLUMN_END ) return QVariant();
 336
 337         QString returninfo;
 338         if( metadata == COLUMN_NUMBER )
 339             returninfo = QString::number( index.row() + 1 );
 340         else
 341         {
 342             char *psz = psz_column_meta( item->p_input, metadata );
 343             returninfo = qfu( psz );
 344             free( psz );
 345         }
 346         return QVariant( returninfo );
 347     }
 348     else if( role == Qt::DecorationRole && index.column() == 0  )
 349     {
 350         /* Used to segfault here because i_type wasn't always initialized */
 351         return QVariant( PLModel::icons[item->p_input->i_type] );
 352     }
 353     else if( role == Qt::FontRole )
 354     {
 355         if( isCurrent( index ) )
 356         {
 357             QFont f; f.setBold( true ); return QVariant( f );
 358         }
 359     }
 360     else if( role == Qt::BackgroundRole && isCurrent( index ) )
 361     {
 362         return QVariant( QBrush( Qt::gray ) );
 363     }
 364     else if( role == IsCurrentRole ) return QVariant( isCurrent( index ) );
 365     else if( role == IsLeafNodeRole )
 366     {
 367         QVariant isLeaf;
 368         PL_LOCK;
 369         playlist_item_t *plItem =
 370             playlist_ItemGetById( p_playlist, item->i_id );
 371
 372         if( plItem )
 373             isLeaf = plItem->i_children == -1;
 374
 375         PL_UNLOCK;
 376         return isLeaf;
 377     }
 378     return QVariant();
 379 }
 380
 381 bool PLModel::isCurrent( const QModelIndex &index ) const
 382 {
 383     return getItem( index )->p_input == THEMIM->currentInputItem();
 384 }
 385
 386 int PLModel::itemId( const QModelIndex &index ) const
 387 {
 388     return getItem( index )->i_id;
 389 }
 390
 391 QVariant PLModel::headerData( int section, Qt::Orientation orientation,
 392                               int role ) const
 393 {
 394     if (orientation != Qt::Horizontal || role != Qt::DisplayRole)
 395         return QVariant();
 396
 397     int meta_col = columnToMeta( section );
 398
 399     if( meta_col == COLUMN_END ) return QVariant();
 400
 401     return QVariant( qfu( psz_column_title( meta_col ) ) );
 402 }
 403
 404 QModelIndex PLModel::index( int row, int column, const QModelIndex &parent )
 405                   const
 406 {
 407     PLItem *parentItem = parent.isValid() ? getItem( parent ) : rootItem;
 408
 409     PLItem *childItem = parentItem->child( row );
 410     if( childItem )
 411         return createIndex( row, column, childItem );
 412     else
 413         return QModelIndex();
 414 }
 415
 416 QModelIndex PLModel::index( int i_id, int c )
 417 {
 418   return index( findById( rootItem, i_id ), c );
 419 }
 420
 421 /* Return the index of a given item */
 422 QModelIndex PLModel::index( PLItem *item, int column ) const
 423 {
 424     if( !item ) return QModelIndex();
 425     const PLItem *parent = item->parent();
 426     if( parent )
 427         return createIndex( parent->children.lastIndexOf( item ),
 428                             column, item );
 429     return QModelIndex();
 430 }
 431
 432 QModelIndex PLModel::currentIndex()
 433 {
 434     input_thread_t *p_input_thread = THEMIM->getInput();
 435     if( !p_input_thread ) return QModelIndex();
 436     PLItem *item = findByInput( rootItem, input_GetItem( p_input_thread )->i_id );
 437     return index( item, 0 );
 438 }
 439
 440 QModelIndex PLModel::parent( const QModelIndex &index ) const
 441 {
 442     if( !index.isValid() ) return QModelIndex();
 443
 444     PLItem *childItem = getItem( index );
 445     if( !childItem )
 446     {
 447         msg_Err( p_playlist, "NULL CHILD" );
 448         return QModelIndex();
 449     }
 450
 451     PLItem *parentItem = childItem->parent();
 452     if( !parentItem || parentItem == rootItem ) return QModelIndex();
 453     if( !parentItem->parentItem )
 454     {
 455         msg_Err( p_playlist, "No parent parent, trying row 0 " );
 456         msg_Err( p_playlist, "----- PLEASE REPORT THIS ------" );
 457         return createIndex( 0, 0, parentItem );
 458     }
 459     QModelIndex ind = createIndex(parentItem->row(), 0, parentItem);
 460     return ind;
 461 }
 462
 463 int PLModel::columnCount( const QModelIndex &i) const
 464 {
 465     return columnFromMeta( COLUMN_END );
 466 }
 467
 468 int PLModel::rowCount( const QModelIndex &parent ) const
 469 {
 470     PLItem *parentItem = parent.isValid() ? getItem( parent ) : rootItem;
 471     return parentItem->childCount();
 472 }
 473
 474 QStringList PLModel::selectedURIs()
 475 {
 476     QStringList lst;
 477     for( int i = 0; i < current_selection.size(); i++ )
 478     {
 479         PLItem *item = getItem( current_selection[i] );
 480         if( item )
 481         {
 482             PL_LOCK;
 483             playlist_item_t *p_item = playlist_ItemGetById( p_playlist, item->i_id );
 484             if( p_item )
 485             {
 486                 char *psz = input_item_GetURI( p_item->p_input );
 487                 if( psz )
 488                 {
 489                     lst.append( qfu(psz) );
 490                     free( psz );
 491                 }
 492             }
 493             PL_UNLOCK;
 494         }
 495     }
 496     return lst;
 497 }
 498
 499
 500 /************************* Lookups *****************************/
 501
 502 PLItem *PLModel::findById( PLItem *root, int i_id )
 503 {
 504     return findInner( root, i_id, false );
 505 }
 506
 507 PLItem *PLModel::findByInput( PLItem *root, int i_id )
 508 {
 509     PLItem *result = findInner( root, i_id, true );
 510     return result;
 511 }
 512
 513 #define CACHE( i, p ) { i_cached_id = i; p_cached_item = p; }
 514 #define ICACHE( i, p ) { i_cached_input_id = i; p_cached_item_bi = p; }
 515
 516 PLItem * PLModel::findInner( PLItem *root, int i_id, bool b_input )
 517 {
 518     if( !root ) return NULL;
 519     if( ( !b_input && i_cached_id == i_id) ||
 520         ( b_input && i_cached_input_id ==i_id ) )
 521     {
 522         return b_input ? p_cached_item_bi : p_cached_item;
 523     }
 524
 525     if( !b_input && root->i_id == i_id )
 526     {
 527         CACHE( i_id, root );
 528         return root;
 529     }
 530     else if( b_input && root->p_input->i_id == i_id )
 531     {
 532         ICACHE( i_id, root );
 533         return root;
 534     }
 535
 536     QList<PLItem *>::iterator it = root->children.begin();
 537     while ( it != root->children.end() )
 538     {
 539         if( !b_input && (*it)->i_id == i_id )
 540         {
 541             CACHE( i_id, (*it) );
 542             return p_cached_item;
 543         }
 544         else if( b_input && (*it)->p_input->i_id == i_id )
 545         {
 546             ICACHE( i_id, (*it) );
 547             return p_cached_item_bi;
 548         }
 549         if( (*it)->children.size() )
 550         {
 551             PLItem *childFound = findInner( (*it), i_id, b_input );
 552             if( childFound )
 553             {
 554                 if( b_input )
 555                     ICACHE( i_id, childFound )
 556                 else
 557                     CACHE( i_id, childFound )
 558                 return childFound;
 559             }
 560         }
 561         it++;
 562     }
 563     return NULL;
 564 }
 565 #undef CACHE
 566 #undef ICACHE
 567
 568 int PLModel::columnToMeta( int _column )
 569 {
 570     int meta = 1;
 571     int column = 0;
 572
 573     while( column != _column && meta != COLUMN_END )
 574     {
 575         meta <<= 1;
 576         column++;
 577     }
 578
 579     return meta;
 580 }
 581
 582 int PLModel::columnFromMeta( int meta_col )
 583 {
 584     int meta = 1;
 585     int column = 0;
 586
 587     while( meta != meta_col && meta != COLUMN_END )
 588     {
 589         meta <<= 1;
 590         column++;
 591     }
 592
 593     return column;
 594 }
 595
 596 bool PLModel::canEdit() const
 597 {
 598   return (
 599     rootItem != NULL &&
 600     (
 601       rootItem->p_input == p_playlist->p_playing->p_input ||
 602       (
 603         p_playlist->p_media_library &&
 604         rootItem->p_input == p_playlist->p_media_library->p_input
 605       )
 606     )
 607   );
 608 }
 609 /************************* Updates handling *****************************/
 610
 611 /**** Events processing ****/
 612 void PLModel::processInputItemUpdate( input_thread_t *p_input )
 613 {
 614     if( !p_input ) return;
 615     if( p_input && !( p_input->b_dead || !vlc_object_alive( p_input ) ) )
 616     {
 617         PLItem *item = findByInput( rootItem, input_GetItem( p_input )->i_id );
 618         if( item ) emit currentChanged( index( item, 0 ) );
 619     }
 620     processInputItemUpdate( input_GetItem( p_input ) );
 621 }
 622
 623 void PLModel::processInputItemUpdate( input_item_t *p_item )
 624 {
 625     if( !p_item ||  p_item->i_id <= 0 ) return;
 626     PLItem *item = findByInput( rootItem, p_item->i_id );
 627     if( item )
 628         updateTreeItem( item );
 629 }
 630
 631 void PLModel::processItemRemoval( int i_id )
 632 {
 633     if( i_id <= 0 ) return;
 634     removeItem( i_id );
 635 }
 636
 637 void PLModel::processItemAppend( int i_item, int i_parent )
 638 {
 639     playlist_item_t *p_item = NULL;
 640     PLItem *newItem = NULL;
 641     input_thread_t *currentInputThread;
 642     int pos;
 643
 644     PLItem *nodeItem = findById( rootItem, i_parent );
 645     if( !nodeItem ) return;
 646
 647     foreach( PLItem *existing, nodeItem->children )
 648       if( existing->i_id == i_item ) return;
 649
 650     PL_LOCK;
 651     p_item = playlist_ItemGetById( p_playlist, i_item );
 652     if( !p_item || p_item->i_flags & PLAYLIST_DBL_FLAG )
 653     {
 654         PL_UNLOCK; return;
 655     }
 656
 657     for( pos = 0; pos < p_item->p_parent->i_children; pos++ )
 658         if( p_item->p_parent->pp_children[pos] == p_item ) break;
 659
 660     newItem = new PLItem( p_item, nodeItem );
 661     PL_UNLOCK;
 662
 663     beginInsertRows( index( nodeItem, 0 ), pos, pos );
 664     nodeItem->insertChild( newItem, pos );
 665     endInsertRows();
 666
 667     if( newItem->p_input == THEMIM->currentInputItem() )
 668         emit currentChanged( index( newItem, 0 ) );
 669 }
 670
 671
 672 void PLModel::rebuild()
 673 {
 674     rebuild( NULL );
 675 }
 676
 677 void PLModel::rebuild( playlist_item_t *p_root )
 678 {
 679     playlist_item_t* p_item;
 680
 681     /* Invalidate cache */
 682     i_cached_id = i_cached_input_id = -1;
 683
 684     if( rootItem ) rootItem->removeChildren();
 685
 686     PL_LOCK;
 687     if( p_root )
 688     {
 689         delete rootItem;
 690         rootItem = new PLItem( p_root );
 691     }
 692     assert( rootItem );
 693     /* Recreate from root */
 694     updateChildren( rootItem );
 695     PL_UNLOCK;
 696
 697     /* And signal the view */
 698     reset();
 699
 700     if( p_root ) emit rootChanged();
 701 }
 702
 703 void PLModel::takeItem( PLItem *item )
 704 {
 705     assert( item );
 706     PLItem *parent = item->parentItem;
 707     assert( parent );
 708     int i_index = parent->children.indexOf( item );
 709
 710     beginRemoveRows( index( parent, 0 ), i_index, i_index );
 711     parent->takeChildAt( i_index );
 712     endRemoveRows();
 713 }
 714
 715 void PLModel::insertChildren( PLItem *node, QList<PLItem*>& items, int i_pos )
 716 {
 717     assert( node );
 718     int count = items.size();
 719     if( !count ) return;
 720     beginInsertRows( index( node, 0 ), i_pos, i_pos + count - 1 );
 721     for( int i = 0; i < count; i++ )
 722     {
 723         node->children.insert( i_pos + i, items[i] );
 724         items[i]->parentItem = node;
 725     }
 726     endInsertRows();
 727 }
 728
 729 void PLModel::removeItem( PLItem *item )
 730 {
 731     if( !item ) return;
 732
 733     i_cached_id = -1;
 734     i_cached_input_id = -1;
 735
 736     if( item->parentItem ) {
 737         int i = item->parentItem->children.indexOf( item );
 738         beginRemoveRows( index( item->parentItem, 0), i, i );
 739         item->parentItem->children.removeAt(i);
 740         delete item;
 741         endRemoveRows();
 742     }
 743     else delete item;
 744
 745     if(item == rootItem)
 746     {
 747         rootItem = NULL;
 748         rebuild( p_playlist->p_playing );
 749     }
 750 }
 751
 752 /* This function must be entered WITH the playlist lock */
 753 void PLModel::updateChildren( PLItem *root )
 754 {
 755     playlist_item_t *p_node = playlist_ItemGetById( p_playlist, root->i_id );
 756     updateChildren( p_node, root );
 757 }
 758
 759 /* This function must be entered WITH the playlist lock */
 760 void PLModel::updateChildren( playlist_item_t *p_node, PLItem *root )
 761 {
 762     for( int i = 0; i < p_node->i_children ; i++ )
 763     {
 764         if( p_node->pp_children[i]->i_flags & PLAYLIST_DBL_FLAG ) continue;
 765         PLItem *newItem =  new PLItem( p_node->pp_children[i], root );
 766         root->appendChild( newItem );
 767         if( p_node->pp_children[i]->i_children != -1 )
 768             updateChildren( p_node->pp_children[i], newItem );
 769     }
 770 }
 771
 772 /* Function doesn't need playlist-lock, as we don't touch playlist_item_t stuff here*/
 773 void PLModel::updateTreeItem( PLItem *item )
 774 {
 775     if( !item ) return;
 776     emit dataChanged( index( item, 0 ) , index( item, columnCount( QModelIndex() ) ) );
 777 }
 778
 779 /************************* Actions ******************************/
 780
 781 /**
 782  * Lets not worry about nodes children, we do refersh anyway when
 783  * core tells that playlist has changed, should give some more speed
 784  */
 785 void PLModel::doDelete( QModelIndexList selected )
 786 {
 787     if( !canEdit() ) return;
 788
 789     while( !selected.isEmpty() )
 790     {
 791         QModelIndex index = selected[0];
 792         selected.removeAt( 0 );
 793
 794         if( index.column() != 0 ) continue;
 795
 796         PLItem *item = getItem( index );
 797
 798         PL_LOCK;
 799         playlist_DeleteFromInput( p_playlist, item->p_input, pl_Locked );
 800         PL_UNLOCK;
 801
 802         removeItem( item );
 803     }
 804 }
 805
 806 void PLModel::recurseDelete( QList<PLItem*> children, QModelIndexList *fullList )
 807 {
 808     for( int i = children.size() - 1; i >= 0 ; i-- )
 809     {
 810         PLItem *item = children[i];
 811         if( item->children.size() )
 812             recurseDelete( item->children, fullList );
 813         fullList->removeAll( index( item, 0 ) );
 814     }
 815 }
 816
 817 /******* Volume III: Sorting and searching ********/
 818 void PLModel::sort( int column, Qt::SortOrder order )
 819 {
 820     sort( rootItem->i_id, column, order );
 821 }
 822
 823 void PLModel::sort( int i_root_id, int column, Qt::SortOrder order )
 824 {
 825     msg_Dbg( p_intf, "Sorting by column %i, order %i", column, order );
 826
 827     int meta = columnToMeta( column );
 828     if( meta == COLUMN_END ) return;
 829
 830     PLItem *item = findById( rootItem, i_root_id );
 831     if( !item ) return;
 832     QModelIndex qIndex = index( item, 0 );
 833     int count = item->children.size();
 834     if( count )
 835     {
 836         beginRemoveRows( qIndex, 0, count - 1 );
 837         item->removeChildren();
 838         endRemoveRows( );
 839     }
 840
 841     PL_LOCK;
 842     {
 843         playlist_item_t *p_root = playlist_ItemGetById( p_playlist,
 844                                                         i_root_id );
 845         if( p_root )
 846         {
 847             playlist_RecursiveNodeSort( p_playlist, p_root,
 848                                         i_column_sorting( meta ),
 849                                         order == Qt::AscendingOrder ?
 850                                             ORDER_NORMAL : ORDER_REVERSE );
 851         }
 852     }
 853
 854     i_cached_id = i_cached_input_id = -1;
 855
 856     if( count )
 857     {
 858         beginInsertRows( qIndex, 0, count - 1 );
 859         updateChildren( item );
 860         endInsertRows( );
 861     }
 862     PL_UNLOCK;
 863     /* if we have popup item, try to make sure that you keep that item visible */
 864     if( i_popup_item > -1 )
 865     {
 866         PLItem *popupitem = findById( rootItem, i_popup_item );
 867         if( popupitem ) emit currentChanged( index( popupitem, 0 ) );
 868         /* reset i_popup_item as we don't show it as selected anymore anyway */
 869         i_popup_item = -1;
 870     }
 871     else if( currentIndex().isValid() ) emit currentChanged( currentIndex() );
 872 }
 873
 874 void PLModel::search( const QString& search_text, const QModelIndex & idx, bool b_recursive )
 875 {
 876     /** \todo Fire the search with a small delay ? */
 877     PL_LOCK;
 878     {
 879         playlist_item_t *p_root = playlist_ItemGetById( p_playlist,
 880                                                         itemId( idx ) );
 881         assert( p_root );
 882         const char *psz_name = qtu( search_text );
 883         playlist_LiveSearchUpdate( p_playlist , p_root, psz_name, b_recursive );
 884
 885         if( idx.isValid() )
 886         {
 887             PLItem *searchRoot = getItem( idx );
 888
 889             beginRemoveRows( idx, 0, searchRoot->children.size() - 1 );
 890             searchRoot->removeChildren();
 891             endRemoveRows( );
 892
 893             beginInsertRows( idx, 0, searchRoot->children.size() - 1 );
 894             updateChildren( searchRoot );
 895             endInsertRows();
 896
 897             PL_UNLOCK;
 898             return;
 899         }
 900     }
 901     PL_UNLOCK;
 902     rebuild();
 903 }
 904
 905 /*********** Popup *********/
 906 bool PLModel::popup( const QModelIndex & index, const QPoint &point, const QModelIndexList &list )
 907 {
 908     int i_id = index.isValid() ? itemId( index ) : rootItem->i_id;
 909
 910     PL_LOCK;
 911     playlist_item_t *p_item = playlist_ItemGetById( p_playlist, i_id );
 912     if( !p_item )
 913     {
 914         PL_UNLOCK;
 915         return false;
 916     }
 917
 918     i_popup_item = index.isValid() ? p_item->i_id : -1;
 919     i_popup_parent = index.isValid() ?
 920         ( p_item->p_parent ? p_item->p_parent->i_id : -1 ) :
 921         ( rootItem->i_id );
 922     i_popup_column = index.column();
 923
 924     bool tree = ( rootItem && rootItem->i_id != p_playlist->p_playing->i_id ) ||
 925                 var_InheritBool( p_intf, "playlist-tree" );
 926
 927     PL_UNLOCK;
 928
 929     current_selection = list;
 930
 931     QMenu menu;
 932     if( i_popup_item > -1 )
 933     {
 934         menu.addAction( QIcon( ":/menu/play" ), qtr(I_POP_PLAY), this, SLOT( popupPlay() ) );
 935         menu.addAction( QIcon( ":/menu/stream" ),
 936                         qtr(I_POP_STREAM), this, SLOT( popupStream() ) );
 937         menu.addAction( qtr(I_POP_SAVE), this, SLOT( popupSave() ) );
 938         menu.addAction( QIcon( ":/menu/info" ), qtr(I_POP_INFO), this, SLOT( popupInfo() ) );
 939         menu.addAction( QIcon( ":/type/folder-grey" ),
 940                         qtr( I_POP_EXPLORE ), this, SLOT( popupExplore() ) );
 941         menu.addSeparator();
 942     }
 943     if( canEdit() )
 944     {
 945         QIcon addIcon( ":/buttons/playlist/playlist_add" );
 946         menu.addSeparator();
 947         if( tree ) menu.addAction( addIcon, qtr(I_POP_NEWFOLDER), this, SLOT( popupAddNode() ) );
 948         if( rootItem->i_id == THEPL->p_playing->i_id )
 949         {
 950             menu.addAction( addIcon, qtr(I_PL_ADDF), THEDP, SLOT( simplePLAppendDialog()) );
 951             menu.addAction( addIcon, qtr(I_PL_ADDDIR), THEDP, SLOT( PLAppendDir()) );
 952             menu.addAction( addIcon, qtr(I_OP_ADVOP), THEDP, SLOT( PLAppendDialog()) );
 953         }
 954         else if( THEPL->p_media_library &&
 955                     rootItem->i_id == THEPL->p_media_library->i_id )
 956         {
 957             menu.addAction( addIcon, qtr(I_PL_ADDF), THEDP, SLOT( simpleMLAppendDialog()) );
 958             menu.addAction( addIcon, qtr(I_PL_ADDDIR), THEDP, SLOT( MLAppendDir() ) );
 959             menu.addAction( addIcon, qtr(I_OP_ADVOP), THEDP, SLOT( MLAppendDialog() ) );
 960         }
 961     }
 962     if( i_popup_item > -1 )
 963     {
 964         menu.addAction( QIcon( ":/buttons/playlist/playlist_remove" ),
 965                         qtr(I_POP_DEL), this, SLOT( popupDel() ) );
 966         menu.addSeparator();
 967         if( !sortingMenu )
 968         {
 969             sortingMenu = new QMenu( qtr( "Sort by" ) );
 970             sortingMapper = new QSignalMapper( this );
 971             int i, j;
 972             for( i = 1, j = 1; i < COLUMN_END; i <<= 1, j++ )
 973             {
 974                 if( i == COLUMN_NUMBER ) continue;
 975                 QMenu *m = sortingMenu->addMenu( qfu( psz_column_title( i ) ) );
 976                 QAction *asc = m->addAction( qtr("Ascending") );
 977                 QAction *desc = m->addAction( qtr("Descending") );
 978                 sortingMapper->setMapping( asc, j );
 979                 sortingMapper->setMapping( desc, -j );
 980                 CONNECT( asc, triggered(), sortingMapper, map() );
 981                 CONNECT( desc, triggered(), sortingMapper, map() );
 982             }
 983             CONNECT( sortingMapper, mapped( int ), this, popupSort( int ) );
 984         }
 985         menu.addMenu( sortingMenu );
 986     }
 987     if( !menu.isEmpty() )
 988     {
 989         menu.exec( point ); return true;
 990     }
 991     else return false;
 992 }
 993
 994 void PLModel::popupDel()
 995 {
 996     doDelete( current_selection );
 997 }
 998
 999 void PLModel::popupPlay()
1000 {
1001     PL_LOCK;
1002     {
1003         playlist_item_t *p_item = playlist_ItemGetById( p_playlist,
1004                                                         i_popup_item );
1005         activateItem( p_item );
1006     }
1007     PL_UNLOCK;
1008 }
1009
1010 void PLModel::popupInfo()
1011 {
1012     PL_LOCK;
1013     playlist_item_t *p_item = playlist_ItemGetById( p_playlist,
1014                                                     i_popup_item );
1015     if( p_item )
1016     {
1017         input_item_t* p_input = p_item->p_input;
1018         vlc_gc_incref( p_input );
1019         PL_UNLOCK;
1020         MediaInfoDialog *mid = new MediaInfoDialog( p_intf, p_input );
1021         vlc_gc_decref( p_input );
1022         mid->setParent( PlaylistDialog::getInstance( p_intf ),
1023                         Qt::Dialog );
1024         mid->show();
1025     } else
1026         PL_UNLOCK;
1027 }
1028
1029 void PLModel::popupStream()
1030 {
1031     QStringList mrls = selectedURIs();
1032     if( !mrls.isEmpty() )
1033         THEDP->streamingDialog( NULL, mrls[0], false );
1034
1035 }
1036
1037 void PLModel::popupSave()
1038 {
1039     QStringList mrls = selectedURIs();
1040     if( !mrls.isEmpty() )
1041         THEDP->streamingDialog( NULL, mrls[0] );
1042 }
1043
1044 void PLModel::popupExplore()
1045 {
1046     PL_LOCK;
1047     playlist_item_t *p_item = playlist_ItemGetById( p_playlist,
1048                                                     i_popup_item );
1049     if( p_item )
1050     {
1051        input_item_t *p_input = p_item->p_input;
1052        char *psz_meta = input_item_GetURI( p_input );
1053        PL_UNLOCK;
1054        if( psz_meta )
1055        {
1056            const char *psz_access;
1057            const char *psz_demux;
1058            char  *psz_path;
1059            input_SplitMRL( &psz_access, &psz_demux, &psz_path, psz_meta );
1060
1061            if( !EMPTY_STR( psz_access ) && (
1062                    !strncasecmp( psz_access, "file", 4 ) ||
1063                    !strncasecmp( psz_access, "dire", 4 ) ))
1064            {
1065                QFileInfo info( qfu( decode_URI( psz_path ) ) );
1066                QDesktopServices::openUrl(
1067                                QUrl::fromLocalFile( info.absolutePath() ) );
1068            }
1069            free( psz_meta );
1070        }
1071     }
1072     else
1073         PL_UNLOCK;
1074 }
1075
1076 void PLModel::popupAddNode()
1077 {
1078     bool ok;
1079     QString name = QInputDialog::getText( PlaylistDialog::getInstance( p_intf ),
1080         qtr( I_NEW_DIR ), qtr( I_NEW_DIR_NAME ),
1081         QLineEdit::Normal, QString(), &ok);
1082     if( !ok || name.isEmpty() ) return;
1083     PL_LOCK;
1084     playlist_item_t *p_item = playlist_ItemGetById( p_playlist,
1085                                                     i_popup_parent );
1086     if( p_item )
1087     {
1088         playlist_NodeCreate( p_playlist, qtu( name ), p_item, PLAYLIST_END, 0, NULL );
1089     }
1090     PL_UNLOCK;
1091 }
1092
1093 void PLModel::popupSort( int column )
1094 {
1095     sort( i_popup_parent,
1096           column > 0 ? column - 1 : -column - 1,
1097           column > 0 ? Qt::AscendingOrder : Qt::DescendingOrder );
1098 }
1099
1100 /******************* Drag and Drop helper class ******************/
1101
1102 PlMimeData::PlMimeData( )
1103 { }
1104
1105 PlMimeData::~PlMimeData()
1106 {
1107     foreach( input_item_t *p_item, _inputItems )
1108         vlc_gc_decref( p_item );
1109 }
1110
1111 void PlMimeData::appendItem( input_item_t *p_item )
1112 {
1113     vlc_gc_incref( p_item );
1114     _inputItems.append( p_item );
1115 }
1116
1117 QList<input_item_t*> PlMimeData::inputItems() const
1118 {
1119     return _inputItems;
1120 }
1121
1122 QStringList PlMimeData::formats () const
1123 {
1124     QStringList fmts;
1125     fmts << "vlc/qt-input-items";
1126     return fmts;
1127 }