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

   1 /*****************************************************************************
   2  * playlist_model.cpp : Manage playlist model
   3  ****************************************************************************
   4  * Copyright (C) 2006-2011 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 "components/playlist/playlist_model.hpp"
  32 #include "dialogs_provider.hpp"                         /* THEDP */
  33 #include "input_manager.hpp"                            /* THEMIM */
  34 #include "dialogs/mediainfo.hpp"                        /* MediaInfo Dialog */
  35 #include "dialogs/playlist.hpp"                         /* Playlist Dialog */
  36
  37 #include <vlc_intf_strings.h>                           /* I_DIR */
  38
  39 #include "pixmaps/types/type_unknown.xpm"
  40 #include "sorting.h"
  41
  42 #include <assert.h>
  43 #include <QIcon>
  44 #include <QFont>
  45 #include <QMenu>
  46 #include <QUrl>
  47 #include <QFileInfo>
  48 #include <QDesktopServices>
  49 #include <QInputDialog>
  50 #include <QSignalMapper>
  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                   : VLCModel( _p_intf, parent )
  69 {
  70     p_playlist        = _p_playlist;
  71     i_cached_id       = -1;
  72     i_cached_input_id = -1;
  73     i_popup_item      = i_popup_parent = -1;
  74     sortingMenu       = NULL;
  75
  76     rootItem          = NULL; /* PLItem rootItem, will be set in rebuild( ) */
  77
  78     /* Icons initialization */
  79 #define ADD_ICON(type, x) icons[ITEM_TYPE_##type] = QIcon( x )
  80     ADD_ICON( UNKNOWN , type_unknown_xpm );
  81     ADD_ICON( FILE, ":/type/file" );
  82     ADD_ICON( DIRECTORY, ":/type/directory" );
  83     ADD_ICON( DISC, ":/type/disc" );
  84     ADD_ICON( CDDA, ":/type/cdda" );
  85     ADD_ICON( CARD, ":/type/capture-card" );
  86     ADD_ICON( NET, ":/type/net" );
  87     ADD_ICON( PLAYLIST, ":/type/playlist" );
  88     ADD_ICON( NODE, ":/type/node" );
  89 #undef ADD_ICON
  90
  91     rebuild( p_root );
  92     DCONNECT( THEMIM->getIM(), metaChanged( input_item_t *),
  93               this, processInputItemUpdate( input_item_t *) );
  94     DCONNECT( THEMIM, inputChanged( input_thread_t * ),
  95               this, processInputItemUpdate( input_thread_t* ) );
  96     CONNECT( THEMIM, playlistItemAppended( int, int ),
  97              this, processItemAppend( int, int ) );
  98     CONNECT( THEMIM, playlistItemRemoved( int ),
  99              this, processItemRemoval( int ) );
 100 }
 101
 102 PLModel::~PLModel()
 103 {
 104     delete rootItem;
 105     delete sortingMenu;
 106 }
 107
 108 Qt::DropActions PLModel::supportedDropActions() const
 109 {
 110     return Qt::CopyAction | Qt::MoveAction;
 111 }
 112
 113 Qt::ItemFlags PLModel::flags( const QModelIndex &index ) const
 114 {
 115     Qt::ItemFlags flags = QAbstractItemModel::flags( index );
 116
 117     const PLItem *item = index.isValid() ? getItem( index ) : rootItem;
 118
 119     if( canEdit() )
 120     {
 121         PL_LOCK;
 122         playlist_item_t *plItem =
 123             playlist_ItemGetById( p_playlist, item->i_id );
 124
 125         if ( plItem && ( plItem->i_children > -1 ) )
 126             flags |= Qt::ItemIsDropEnabled;
 127
 128         PL_UNLOCK;
 129
 130     }
 131     flags |= Qt::ItemIsDragEnabled;
 132
 133     return flags;
 134 }
 135
 136 QStringList PLModel::mimeTypes() const
 137 {
 138     QStringList types;
 139     types << "vlc/qt-input-items";
 140     return types;
 141 }
 142
 143 bool modelIndexLessThen( const QModelIndex &i1, const QModelIndex &i2 )
 144 {
 145     if( !i1.isValid() || !i2.isValid() ) return false;
 146     PLItem *item1 = static_cast<PLItem*>( i1.internalPointer() );
 147     PLItem *item2 = static_cast<PLItem*>( i2.internalPointer() );
 148     if( item1->parent() == item2->parent() ) return i1.row() < i2.row();
 149     else return *item1 < *item2;
 150 }
 151
 152 QMimeData *PLModel::mimeData( const QModelIndexList &indexes ) const
 153 {
 154     PlMimeData *plMimeData = new PlMimeData();
 155     QModelIndexList list;
 156
 157     foreach( const QModelIndex &index, indexes ) {
 158         if( index.isValid() && index.column() == 0 )
 159             list.append(index);
 160     }
 161
 162     qSort(list.begin(), list.end(), modelIndexLessThen);
 163
 164     PLItem *item = NULL;
 165     foreach( const QModelIndex &index, list ) {
 166         if( item )
 167         {
 168             PLItem *testee = getItem( index );
 169             while( testee->parent() )
 170             {
 171                 if( testee->parent() == item ||
 172                     testee->parent() == item->parent() ) break;
 173                 testee = testee->parent();
 174             }
 175             if( testee->parent() == item ) continue;
 176             item = getItem( index );
 177         }
 178         else
 179             item = getItem( index );
 180
 181         plMimeData->appendItem( item->inputItem() );
 182     }
 183
 184     return plMimeData;
 185 }
 186
 187 /* Drop operation */
 188 bool PLModel::dropMimeData( const QMimeData *data, Qt::DropAction action,
 189         int row, int, const QModelIndex &parent )
 190 {
 191     bool copy = action == Qt::CopyAction;
 192     if( !copy && action != Qt::MoveAction )
 193         return true;
 194
 195     const PlMimeData *plMimeData = qobject_cast<const PlMimeData*>( data );
 196     if( plMimeData )
 197     {
 198         if( copy )
 199             dropAppendCopy( plMimeData, getItem( parent ), row );
 200         else
 201             dropMove( plMimeData, getItem( parent ), row );
 202     }
 203     return true;
 204 }
 205
 206 void PLModel::dropAppendCopy( const PlMimeData *plMimeData, PLItem *target, int pos )
 207 {
 208     PL_LOCK;
 209
 210     playlist_item_t *p_parent =
 211         playlist_ItemGetByInput( p_playlist, target->inputItem() );
 212     if( !p_parent ) return;
 213
 214     if( pos == -1 ) pos = PLAYLIST_END;
 215
 216     QList<input_item_t*> inputItems = plMimeData->inputItems();
 217
 218     foreach( input_item_t* p_input, inputItems )
 219     {
 220         playlist_item_t *p_item = playlist_ItemGetByInput( p_playlist, p_input );
 221         if( !p_item ) continue;
 222         pos = playlist_NodeAddCopy( p_playlist, p_item, p_parent, pos );
 223     }
 224
 225     PL_UNLOCK;
 226 }
 227
 228 void PLModel::dropMove( const PlMimeData * plMimeData, PLItem *target, int row )
 229 {
 230     QList<input_item_t*> inputItems = plMimeData->inputItems();
 231     QList<PLItem*> model_items;
 232     playlist_item_t *pp_items[inputItems.size()];
 233
 234     PL_LOCK;
 235
 236     playlist_item_t *p_parent =
 237         playlist_ItemGetByInput( p_playlist, target->inputItem() );
 238
 239     if( !p_parent || row > p_parent->i_children )
 240     {
 241         PL_UNLOCK; return;
 242     }
 243
 244     int new_pos = row == -1 ? p_parent->i_children : row;
 245     int model_pos = new_pos;
 246     int i = 0;
 247
 248     foreach( input_item_t *p_input, inputItems )
 249     {
 250         playlist_item_t *p_item = playlist_ItemGetByInput( p_playlist, p_input );
 251         if( !p_item ) continue;
 252
 253         PLItem *item = findByInput( rootItem, p_input->i_id );
 254         if( !item ) continue;
 255
 256         /* Better not try to move a node into itself.
 257            Abort the whole operation in that case,
 258            because it is ambiguous. */
 259         PLItem *climber = target;
 260         while( climber )
 261         {
 262             if( climber == item )
 263             {
 264                 PL_UNLOCK; return;
 265             }
 266             climber = climber->parent();
 267         }
 268
 269         if( item->parent() == target &&
 270             target->children.indexOf( item ) < new_pos )
 271             model_pos--;
 272
 273         model_items.append( item );
 274         pp_items[i] = p_item;
 275         i++;
 276     }
 277
 278     if( model_items.isEmpty() )
 279     {
 280         PL_UNLOCK; return;
 281     }
 282
 283     playlist_TreeMoveMany( p_playlist, i, pp_items, p_parent, new_pos );
 284
 285     PL_UNLOCK;
 286
 287     foreach( PLItem *item, model_items )
 288         takeItem( item );
 289
 290     insertChildren( target, model_items, model_pos );
 291 }
 292
 293 /* remove item with its id */
 294 void PLModel::removeItem( int i_id )
 295 {
 296     PLItem *item = findById( rootItem, i_id );
 297     removeItem( item );
 298 }
 299
 300 void PLModel::activateItem( const QModelIndex &index )
 301 {
 302     assert( index.isValid() );
 303     const PLItem *item = getItem( index );
 304     assert( item );
 305     PL_LOCK;
 306     playlist_item_t *p_item = playlist_ItemGetById( p_playlist, item->i_id );
 307     activateItem( p_item );
 308     PL_UNLOCK;
 309 }
 310
 311 /* Must be entered with lock */
 312 void PLModel::activateItem( playlist_item_t *p_item )
 313 {
 314     if( !p_item ) return;
 315     playlist_item_t *p_parent = p_item;
 316     while( p_parent )
 317     {
 318         if( p_parent->i_id == rootItem->id() ) break;
 319         p_parent = p_parent->p_parent;
 320     }
 321     if( p_parent )
 322         playlist_Control( p_playlist, PLAYLIST_VIEWPLAY, pl_Locked,
 323                 p_parent, p_item );
 324 }
 325
 326 /****************** Base model mandatory implementations *****************/
 327 QVariant PLModel::data( const QModelIndex &index, const int role ) const
 328 {
 329     if( !index.isValid() ) return QVariant();
 330     const PLItem *item = getItem( index );
 331     if( role == Qt::DisplayRole )
 332     {
 333         int metadata = columnToMeta( index.column() );
 334         if( metadata == COLUMN_END ) return QVariant();
 335
 336         QString returninfo;
 337         if( metadata == COLUMN_NUMBER )
 338             returninfo = QString::number( index.row() + 1 );
 339         else if( metadata == COLUMN_COVER )
 340         {
 341             QString artUrl;
 342             artUrl = InputManager::decodeArtURL( item->inputItem() );
 343             if( artUrl.isEmpty() )
 344             {
 345                 for( int i = 0; i < item->childCount(); i++ )
 346                 {
 347                     artUrl = InputManager::decodeArtURL( item->child( i )->inputItem() );
 348                     if( !artUrl.isEmpty() )
 349                         break;
 350                 }
 351             }
 352             return QVariant( artUrl );
 353         }
 354         else
 355         {
 356             char *psz = psz_column_meta( item->inputItem(), metadata );
 357             returninfo = qfu( psz );
 358             free( psz );
 359         }
 360         return QVariant( returninfo );
 361     }
 362     else if( role == Qt::DecorationRole && index.column() == 0  )
 363     {
 364         /* Used to segfault here because i_type wasn't always initialized */
 365         return QVariant( PLModel::icons[item->inputItem()->i_type] );
 366     }
 367     else if( role == Qt::FontRole )
 368     {
 369         QFont f;
 370         f.setPointSize( f.pointSize() - 1 );
 371         if( isCurrent( index ) )
 372             f.setBold( true );
 373         return QVariant( f );
 374     }
 375     else if( role == Qt::BackgroundRole && isCurrent( index ) )
 376     {
 377         return QVariant( QBrush( Qt::gray ) );
 378     }
 379     else if( role == IsCurrentRole ) return QVariant( isCurrent( index ) );
 380     else if( role == IsLeafNodeRole )
 381     {
 382         QVariant isLeaf;
 383         PL_LOCK;
 384         playlist_item_t *plItem =
 385             playlist_ItemGetById( p_playlist, item->i_id );
 386
 387         if( plItem )
 388             isLeaf = plItem->i_children == -1;
 389
 390         PL_UNLOCK;
 391         return isLeaf;
 392     }
 393     else if( role == IsCurrentsParentNodeRole )
 394     {
 395         return QVariant( isParent( index, currentIndex() ) );
 396     }
 397     return QVariant();
 398 }
 399
 400 /* Seek from current index toward the top and see if index is one of parent nodes */
 401 bool PLModel::isParent( const QModelIndex &index, const QModelIndex &current ) const
 402 {
 403     if( !index.isValid() )
 404         return false;
 405
 406     if( index == current )
 407         return true;
 408
 409     if( !current.isValid() || !current.parent().isValid() )
 410         return false;
 411
 412     return isParent( index, current.parent() );
 413 }
 414
 415 bool PLModel::isCurrent( const QModelIndex &index ) const
 416 {
 417     return getItem( index )->inputItem() == THEMIM->currentInputItem();
 418 }
 419
 420 int PLModel::itemId( const QModelIndex &index ) const
 421 {
 422     return getItem( index )->id();
 423 }
 424
 425 QVariant PLModel::headerData( int section, Qt::Orientation orientation,
 426                               int role ) const
 427 {
 428     if (orientation != Qt::Horizontal || role != Qt::DisplayRole)
 429         return QVariant();
 430
 431     int meta_col = columnToMeta( section );
 432
 433     if( meta_col == COLUMN_END ) return QVariant();
 434
 435     return QVariant( qfu( psz_column_title( meta_col ) ) );
 436 }
 437
 438 QModelIndex PLModel::index( const int row, const int column, const QModelIndex &parent )
 439                   const
 440 {
 441     PLItem *parentItem = parent.isValid() ? getItem( parent ) : rootItem;
 442
 443     PLItem *childItem = parentItem->child( row );
 444     if( childItem )
 445         return createIndex( row, column, childItem );
 446     else
 447         return QModelIndex();
 448 }
 449
 450 QModelIndex PLModel::index( const int i_id, const int c )
 451 {
 452     return index( findById( rootItem, i_id ), c );
 453 }
 454
 455 /* Return the index of a given item */
 456 QModelIndex PLModel::index( PLItem *item, int column ) const
 457 {
 458     if( !item ) return QModelIndex();
 459     const PLItem *parent = item->parent();
 460     if( parent )
 461         return createIndex( parent->children.lastIndexOf( item ),
 462                             column, item );
 463     return QModelIndex();
 464 }
 465
 466 QModelIndex PLModel::currentIndex() const
 467 {
 468     input_thread_t *p_input_thread = THEMIM->getInput();
 469     if( !p_input_thread ) return QModelIndex();
 470     PLItem *item = findByInput( rootItem, input_GetItem( p_input_thread )->i_id );
 471     return index( item, 0 );
 472 }
 473
 474 QModelIndex PLModel::parent( const QModelIndex &index ) const
 475 {
 476     if( !index.isValid() ) return QModelIndex();
 477
 478     PLItem *childItem = getItem( index );
 479     if( !childItem )
 480     {
 481         msg_Err( p_playlist, "NULL CHILD" );
 482         return QModelIndex();
 483     }
 484
 485     PLItem *parentItem = childItem->parent();
 486     if( !parentItem || parentItem == rootItem ) return QModelIndex();
 487     if( !parentItem->parent() )
 488     {
 489         msg_Err( p_playlist, "No parent parent, trying row 0 " );
 490         msg_Err( p_playlist, "----- PLEASE REPORT THIS ------" );
 491         return createIndex( 0, 0, parentItem );
 492     }
 493     return createIndex(parentItem->row(), 0, parentItem);
 494 }
 495
 496 int PLModel::columnCount( const QModelIndex &) const
 497 {
 498     return columnFromMeta( COLUMN_END );
 499 }
 500
 501 int PLModel::rowCount( const QModelIndex &parent ) const
 502 {
 503     const PLItem *parentItem = parent.isValid() ? getItem( parent ) : rootItem;
 504     return parentItem->childCount();
 505 }
 506
 507 QStringList PLModel::selectedURIs()
 508 {
 509     QStringList lst;
 510     for( int i = 0; i < current_selection.size(); i++ )
 511     {
 512         const PLItem *item = getItem( current_selection[i] );
 513         if( item )
 514         {
 515             PL_LOCK;
 516             playlist_item_t *p_item = playlist_ItemGetById( p_playlist, item->i_id );
 517             if( p_item )
 518             {
 519                 char *psz = input_item_GetURI( p_item->p_input );
 520                 if( psz )
 521                 {
 522                     lst.append( qfu(psz) );
 523                     free( psz );
 524                 }
 525             }
 526             PL_UNLOCK;
 527         }
 528     }
 529     return lst;
 530 }
 531
 532 /************************* Lookups *****************************/
 533 PLItem *PLModel::findById( PLItem *root, int i_id ) const
 534 {
 535     return findInner( root, i_id, false );
 536 }
 537
 538 PLItem *PLModel::findByInput( PLItem *root, int i_id ) const
 539 {
 540     PLItem *result = findInner( root, i_id, true );
 541     return result;
 542 }
 543
 544 PLItem * PLModel::findInner( PLItem *root, int i_id, bool b_input ) const
 545 {
 546     if( !root ) return NULL;
 547
 548     if( !b_input && root->id() == i_id )
 549         return root;
 550
 551     else if( b_input && root->inputItem()->i_id == i_id )
 552         return root;
 553
 554     QList<PLItem *>::iterator it = root->children.begin();
 555     while ( it != root->children.end() )
 556     {
 557         if( !b_input && (*it)->id() == i_id )
 558             return (*it);
 559
 560         else if( b_input && (*it)->inputItem()->i_id == i_id )
 561             return (*it);
 562
 563         if( (*it)->childCount() )
 564         {
 565             PLItem *childFound = findInner( (*it), i_id, b_input );
 566             if( childFound )
 567                 return childFound;
 568         }
 569         ++it;
 570     }
 571     return NULL;
 572 }
 573
 574 bool PLModel::canEdit() const
 575 {
 576     return (
 577             rootItem != NULL &&
 578             (
 579              rootItem->inputItem() == p_playlist->p_playing->p_input ||
 580              ( p_playlist->p_media_library &&
 581               rootItem->inputItem() == p_playlist->p_media_library->p_input )
 582             )
 583            );
 584 }
 585
 586 /************************* Updates handling *****************************/
 587
 588 /**** Events processing ****/
 589 void PLModel::processInputItemUpdate( input_thread_t *p_input )
 590 {
 591     if( !p_input ) return;
 592     if( p_input && !( p_input->b_dead || !vlc_object_alive( p_input ) ) )
 593     {
 594         PLItem *item = findByInput( rootItem, input_GetItem( p_input )->i_id );
 595         if( item ) emit currentChanged( index( item, 0 ) );
 596     }
 597     processInputItemUpdate( input_GetItem( p_input ) );
 598 }
 599
 600 void PLModel::processInputItemUpdate( input_item_t *p_item )
 601 {
 602     if( !p_item ||  p_item->i_id <= 0 ) return;
 603     PLItem *item = findByInput( rootItem, p_item->i_id );
 604     if( item )
 605         updateTreeItem( item );
 606 }
 607
 608 void PLModel::processItemRemoval( int i_id )
 609 {
 610     if( i_id <= 0 ) return;
 611     removeItem( i_id );
 612 }
 613
 614 void PLModel::processItemAppend( int i_item, int i_parent )
 615 {
 616     playlist_item_t *p_item = NULL;
 617     PLItem *newItem = NULL;
 618     int pos;
 619
 620     /* Find the Parent */
 621     PLItem *nodeParentItem = findById( rootItem, i_parent );
 622     if( !nodeParentItem ) return;
 623
 624     /* Search for an already matching children */
 625     foreach( const PLItem *existing, nodeParentItem->children )
 626         if( existing->i_id == i_item ) return;
 627
 628     /* Find the child */
 629     PL_LOCK;
 630     p_item = playlist_ItemGetById( p_playlist, i_item );
 631     if( !p_item || p_item->i_flags & PLAYLIST_DBL_FLAG )
 632     {
 633         PL_UNLOCK; return;
 634     }
 635
 636     for( pos = 0; pos < p_item->p_parent->i_children; pos++ )
 637         if( p_item->p_parent->pp_children[pos] == p_item ) break;
 638
 639     newItem = new PLItem( p_item, nodeParentItem );
 640     PL_UNLOCK;
 641
 642     /* We insert the newItem (children) inside the parent */
 643     beginInsertRows( index( nodeParentItem, 0 ), pos, pos );
 644     nodeParentItem->insertChild( newItem, pos );
 645     endInsertRows();
 646
 647     if( newItem->inputItem() == THEMIM->currentInputItem() )
 648         emit currentChanged( index( newItem, 0 ) );
 649 }
 650
 651 void PLModel::rebuild( playlist_item_t *p_root )
 652 {
 653     /* Invalidate cache */
 654     i_cached_id = i_cached_input_id = -1;
 655
 656     if( rootItem ) rootItem->removeChildren();
 657
 658     PL_LOCK;
 659     if( p_root ) // Can be NULL
 660     {
 661         delete rootItem;
 662         rootItem = new PLItem( p_root );
 663     }
 664     assert( rootItem );
 665     /* Recreate from root */
 666     updateChildren( rootItem );
 667     PL_UNLOCK;
 668
 669     /* And signal the view */
 670     reset();
 671
 672     if( p_root ) emit rootChanged();
 673 }
 674
 675 void PLModel::takeItem( PLItem *item )
 676 {
 677     assert( item );
 678     PLItem *parent = item->parent();
 679     assert( parent );
 680     int i_index = parent->children.indexOf( item );
 681
 682     beginRemoveRows( index( parent, 0 ), i_index, i_index );
 683     parent->takeChildAt( i_index );
 684     endRemoveRows();
 685 }
 686
 687 void PLModel::insertChildren( PLItem *node, QList<PLItem*>& items, int i_pos )
 688 {
 689     assert( node );
 690     int count = items.size();
 691     if( !count ) return;
 692     printf( "Here I am\n");
 693     beginInsertRows( index( node, 0 ), i_pos, i_pos + count - 1 );
 694     for( int i = 0; i < count; i++ )
 695     {
 696         node->children.insert( i_pos + i, items[i] );
 697         items[i]->parentItem = node;
 698     }
 699     endInsertRows();
 700 }
 701
 702 void PLModel::removeItem( PLItem *item )
 703 {
 704     if( !item ) return;
 705
 706     i_cached_id = -1;
 707     i_cached_input_id = -1;
 708
 709     if( item->parent() ) {
 710         int i = item->parent()->children.indexOf( item );
 711         beginRemoveRows( index( item->parent(), 0), i, i );
 712         item->parent()->children.removeAt(i);
 713         delete item;
 714         endRemoveRows();
 715     }
 716     else delete item;
 717
 718     if(item == rootItem)
 719     {
 720         rootItem = NULL;
 721         rebuild( p_playlist->p_playing );
 722     }
 723 }
 724
 725 /* This function must be entered WITH the playlist lock */
 726 void PLModel::updateChildren( PLItem *root )
 727 {
 728     playlist_item_t *p_node = playlist_ItemGetById( p_playlist, root->id() );
 729     updateChildren( p_node, root );
 730 }
 731
 732 /* This function must be entered WITH the playlist lock */
 733 void PLModel::updateChildren( playlist_item_t *p_node, PLItem *root )
 734 {
 735     for( int i = 0; i < p_node->i_children ; i++ )
 736     {
 737         if( p_node->pp_children[i]->i_flags & PLAYLIST_DBL_FLAG ) continue;
 738         PLItem *newItem =  new PLItem( p_node->pp_children[i], root );
 739         root->appendChild( newItem );
 740         if( p_node->pp_children[i]->i_children != -1 )
 741             updateChildren( p_node->pp_children[i], newItem );
 742     }
 743 }
 744
 745 /* Function doesn't need playlist-lock, as we don't touch playlist_item_t stuff here*/
 746 void PLModel::updateTreeItem( PLItem *item )
 747 {
 748     if( !item ) return;
 749     emit dataChanged( index( item, 0 ) , index( item, columnCount( QModelIndex() ) ) );
 750 }
 751
 752 /************************* Actions ******************************/
 753
 754 /**
 755  * Deletion, don't delete items childrens if item is going to be
 756  * delete allready, so we remove childrens from selection-list.
 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->childCount() )
 771             recurseDelete( item->children, &selected );
 772
 773         PL_LOCK;
 774         playlist_DeleteFromInput( p_playlist, item->inputItem(), 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->childCount() )
 787             recurseDelete( item->children, fullList );
 788         fullList->removeAll( index( item, 0 ) );
 789     }
 790 }
 791
 792 /******* Volume III: Sorting and searching ********/
 793 void PLModel::sort( const int column, Qt::SortOrder order )
 794 {
 795     sort( rootItem->id(), column, order );
 796 }
 797
 798 void PLModel::sort( const int i_root_id, const 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->childCount();
 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     /* if we have popup item, try to make sure that you keep that item visible */
 839     if( i_popup_item > -1 )
 840     {
 841         PLItem *popupitem = findById( rootItem, i_popup_item );
 842         if( popupitem ) emit currentChanged( index( popupitem, 0 ) );
 843         /* reset i_popup_item as we don't show it as selected anymore anyway */
 844         i_popup_item = -1;
 845     }
 846     else if( currentIndex().isValid() ) emit currentChanged( currentIndex() );
 847 }
 848
 849 void PLModel::search( const QString& search_text, const QModelIndex & idx, bool b_recursive )
 850 {
 851     /** \todo Fire the search with a small delay ? */
 852     PL_LOCK;
 853     {
 854         playlist_item_t *p_root = playlist_ItemGetById( p_playlist,
 855                                                         itemId( idx ) );
 856         assert( p_root );
 857         const char *psz_name = qtu( search_text );
 858         playlist_LiveSearchUpdate( p_playlist , p_root, psz_name, b_recursive );
 859
 860         if( idx.isValid() )
 861         {
 862             PLItem *searchRoot = getItem( idx );
 863
 864             beginRemoveRows( idx, 0, searchRoot->childCount() - 1 );
 865             searchRoot->removeChildren();
 866             endRemoveRows( );
 867
 868             beginInsertRows( idx, 0, searchRoot->childCount() - 1 );
 869             updateChildren( searchRoot ); // The PL_LOCK is needed here
 870             endInsertRows();
 871
 872             PL_UNLOCK;
 873             return;
 874         }
 875     }
 876     PL_UNLOCK;
 877     rebuild();
 878 }
 879
 880 /*********** Popup *********/
 881 bool PLModel::popup( const QModelIndex & index, const QPoint &point, const QModelIndexList &list )
 882 {
 883     int i_id = index.isValid() ? itemId( index ) : rootItem->id();
 884
 885     PL_LOCK;
 886     playlist_item_t *p_item = playlist_ItemGetById( p_playlist, i_id );
 887     if( !p_item )
 888     {
 889         PL_UNLOCK;
 890         return false;
 891     }
 892
 893     input_item_t *p_input = p_item->p_input;
 894     vlc_gc_incref( p_input );
 895
 896     i_popup_item = index.isValid() ? p_item->i_id : -1;
 897     i_popup_parent = index.isValid() ?
 898         ( p_item->p_parent ? p_item->p_parent->i_id : -1 ) :
 899         ( rootItem->id() );
 900     i_popup_column = index.column();
 901
 902     bool tree = ( rootItem && rootItem->id() != p_playlist->p_playing->i_id ) ||
 903                 var_InheritBool( p_intf, "playlist-tree" );
 904
 905     PL_UNLOCK;
 906
 907     current_selection = list;
 908
 909     QMenu menu;
 910     if( i_popup_item > -1 )
 911     {
 912         menu.addAction( QIcon( ":/menu/play" ), qtr(I_POP_PLAY), this, SLOT( popupPlay() ) );
 913         menu.addAction( QIcon( ":/menu/stream" ),
 914                         qtr(I_POP_STREAM), this, SLOT( popupStream() ) );
 915         menu.addAction( qtr(I_POP_SAVE), this, SLOT( popupSave() ) );
 916         menu.addAction( QIcon( ":/menu/info" ), qtr(I_POP_INFO), this, SLOT( popupInfo() ) );
 917         if( p_input->psz_uri && !strncasecmp( p_input->psz_uri, "file://", 7 ) )
 918         {
 919             menu.addAction( QIcon( ":/type/folder-grey" ),
 920                             qtr( I_POP_EXPLORE ), this, SLOT( popupExplore() ) );
 921         }
 922         menu.addSeparator();
 923     }
 924     vlc_gc_decref( p_input );
 925
 926     if( canEdit() )
 927     {
 928         QIcon addIcon( ":/buttons/playlist/playlist_add" );
 929         menu.addSeparator();
 930         if( tree ) menu.addAction( addIcon, qtr(I_POP_NEWFOLDER), this, SLOT( popupAddNode() ) );
 931         if( rootItem->id() == THEPL->p_playing->i_id )
 932         {
 933             menu.addAction( addIcon, qtr(I_PL_ADDF), THEDP, SLOT( simplePLAppendDialog()) );
 934             menu.addAction( addIcon, qtr(I_PL_ADDDIR), THEDP, SLOT( PLAppendDir()) );
 935             menu.addAction( addIcon, qtr(I_OP_ADVOP), THEDP, SLOT( PLAppendDialog()) );
 936         }
 937         else if( THEPL->p_media_library &&
 938                     rootItem->id() == THEPL->p_media_library->i_id )
 939         {
 940             menu.addAction( addIcon, qtr(I_PL_ADDF), THEDP, SLOT( simpleMLAppendDialog()) );
 941             menu.addAction( addIcon, qtr(I_PL_ADDDIR), THEDP, SLOT( MLAppendDir() ) );
 942             menu.addAction( addIcon, qtr(I_OP_ADVOP), THEDP, SLOT( MLAppendDialog() ) );
 943         }
 944     }
 945     if( i_popup_item > -1 )
 946     {
 947         if( rootItem->id() != THEPL->p_playing->i_id )
 948             menu.addAction( qtr( "Add to playlist"), this, SLOT( popupAddToPlaylist() ) );
 949         menu.addAction( QIcon( ":/buttons/playlist/playlist_remove" ),
 950                         qtr(I_POP_DEL), this, SLOT( popupDel() ) );
 951         menu.addSeparator();
 952         if( !sortingMenu )
 953         {
 954             sortingMenu = new QMenu( qtr( "Sort by" ) );
 955             sortingMapper = new QSignalMapper( this );
 956             for( int i = 1, j = 1; i < COLUMN_END; i <<= 1, j++ )
 957             {
 958                 if( i == COLUMN_NUMBER ) continue;
 959                 QMenu *m = sortingMenu->addMenu( qfu( psz_column_title( i ) ) );
 960                 QAction *asc = m->addAction( qtr("Ascending") );
 961                 QAction *desc = m->addAction( qtr("Descending") );
 962                 sortingMapper->setMapping( asc, j );
 963                 sortingMapper->setMapping( desc, -j );
 964                 CONNECT( asc, triggered(), sortingMapper, map() );
 965                 CONNECT( desc, triggered(), sortingMapper, map() );
 966             }
 967             CONNECT( sortingMapper, mapped( int ), this, popupSort( int ) );
 968         }
 969         menu.addMenu( sortingMenu );
 970     }
 971
 972     if( !menu.isEmpty() )
 973     {
 974         menu.exec( point ); return true;
 975     }
 976     else return false;
 977 }
 978
 979 void PLModel::popupDel()
 980 {
 981     doDelete( current_selection );
 982 }
 983
 984 void PLModel::popupPlay()
 985 {
 986     PL_LOCK;
 987     {
 988         playlist_item_t *p_item = playlist_ItemGetById( p_playlist,
 989                                                         i_popup_item );
 990         activateItem( p_item );
 991     }
 992     PL_UNLOCK;
 993 }
 994
 995 void PLModel::popupAddToPlaylist()
 996 {
 997     playlist_Lock( THEPL );
 998
 999     foreach( QModelIndex currentIndex, current_selection )
1000     {
1001         playlist_item_t *p_item = playlist_ItemGetById( THEPL, getId( currentIndex ) );
1002         if( !p_item ) continue;
1003
1004         playlist_NodeAddCopy( THEPL, p_item,
1005                               THEPL->p_playing,
1006                               PLAYLIST_END );
1007     }
1008     playlist_Unlock( THEPL );
1009 }
1010
1011 void PLModel::popupInfo()
1012 {
1013     PL_LOCK;
1014     playlist_item_t *p_item = playlist_ItemGetById( p_playlist,
1015                                                     i_popup_item );
1016     if( p_item )
1017     {
1018         input_item_t* p_input = p_item->p_input;
1019         vlc_gc_incref( p_input );
1020         PL_UNLOCK;
1021         MediaInfoDialog *mid = new MediaInfoDialog( p_intf, p_input );
1022         vlc_gc_decref( p_input );
1023         mid->setParent( PlaylistDialog::getInstance( p_intf ),
1024                         Qt::Dialog );
1025         mid->show();
1026     } else
1027         PL_UNLOCK;
1028 }
1029
1030 void PLModel::popupStream()
1031 {
1032     QStringList mrls = selectedURIs();
1033     if( !mrls.isEmpty() )
1034         THEDP->streamingDialog( NULL, mrls[0], false );
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, i_popup_item );
1048     if( p_item )
1049     {
1050         input_item_t *p_input = p_item->p_input;
1051         char *psz_meta = input_item_GetURI( p_input );
1052         PL_UNLOCK;
1053         if( psz_meta )
1054         {
1055             const char *psz_access;
1056             const char *psz_demux;
1057             char  *psz_path;
1058             input_SplitMRL( &psz_access, &psz_demux, &psz_path, psz_meta );
1059
1060             if( !EMPTY_STR( psz_access ) && (
1061                    !strncasecmp( psz_access, "file", 4 ) ||
1062                    !strncasecmp( psz_access, "dire", 4 ) ))
1063             {
1064 #if defined( WIN32 ) || defined( __OS2__ )
1065                 /* Qt openURL doesn't know to open files that starts with a / or \ */
1066                 if( psz_path[0] == '/' || psz_path[0] == '\\'  )
1067                     psz_path++;
1068 #endif
1069
1070                 QFileInfo info( qfu( decode_URI( psz_path ) ) );
1071                 QDesktopServices::openUrl(
1072                         QUrl::fromLocalFile( info.absolutePath() ) );
1073             }
1074             free( psz_meta );
1075         }
1076     }
1077     else
1078         PL_UNLOCK;
1079 }
1080
1081 void PLModel::popupAddNode()
1082 {
1083     bool ok;
1084     QString name = QInputDialog::getText( PlaylistDialog::getInstance( p_intf ),
1085         qtr( I_NEW_DIR ), qtr( I_NEW_DIR_NAME ),
1086         QLineEdit::Normal, QString(), &ok);
1087     if( !ok || name.isEmpty() ) return;
1088
1089     PL_LOCK;
1090     playlist_item_t *p_item = playlist_ItemGetById( p_playlist,
1091                                                     i_popup_parent );
1092     if( p_item )
1093         playlist_NodeCreate( p_playlist, qtu( name ), p_item, PLAYLIST_END, 0, NULL );
1094     PL_UNLOCK;
1095 }
1096
1097 void PLModel::popupSort( int column )
1098 {
1099     sort( i_popup_parent,
1100           column > 0 ? column - 1 : -column - 1,
1101           column > 0 ? Qt::AscendingOrder : Qt::DescendingOrder );
1102 }
1103
1104 /******************* Drag and Drop helper class ******************/
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 }