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     latestSearch      = QString();
  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     i_zoom = getSettings()->value( "Playlist/zoom", 0 ).toInt();
  93
  94     rebuild( p_root );
  95     DCONNECT( THEMIM->getIM(), metaChanged( input_item_t *),
  96               this, processInputItemUpdate( input_item_t *) );
  97     DCONNECT( THEMIM, inputChanged( input_thread_t * ),
  98               this, processInputItemUpdate( input_thread_t* ) );
  99     CONNECT( THEMIM, playlistItemAppended( int, int ),
 100              this, processItemAppend( int, int ) );
 101     CONNECT( THEMIM, playlistItemRemoved( int ),
 102              this, processItemRemoval( int ) );
 103 }
 104
 105 PLModel::~PLModel()
 106 {
 107     getSettings()->setValue( "Playlist/zoom", i_zoom );
 108     delete rootItem;
 109     delete sortingMenu;
 110 }
 111
 112 Qt::DropActions PLModel::supportedDropActions() const
 113 {
 114     return Qt::CopyAction | Qt::MoveAction;
 115 }
 116
 117 Qt::ItemFlags PLModel::flags( const QModelIndex &index ) const
 118 {
 119     Qt::ItemFlags flags = QAbstractItemModel::flags( index );
 120
 121     const PLItem *item = index.isValid() ? getItem( index ) : rootItem;
 122
 123     if( canEdit() )
 124     {
 125         PL_LOCK;
 126         playlist_item_t *plItem =
 127             playlist_ItemGetById( p_playlist, item->i_id );
 128
 129         if ( plItem && ( plItem->i_children > -1 ) )
 130             flags |= Qt::ItemIsDropEnabled;
 131
 132         PL_UNLOCK;
 133
 134     }
 135     flags |= Qt::ItemIsDragEnabled;
 136
 137     return flags;
 138 }
 139
 140 QStringList PLModel::mimeTypes() const
 141 {
 142     QStringList types;
 143     types << "vlc/qt-input-items";
 144     return types;
 145 }
 146
 147 bool modelIndexLessThen( const QModelIndex &i1, const QModelIndex &i2 )
 148 {
 149     if( !i1.isValid() || !i2.isValid() ) return false;
 150     PLItem *item1 = static_cast<PLItem*>( i1.internalPointer() );
 151     PLItem *item2 = static_cast<PLItem*>( i2.internalPointer() );
 152     if( item1->parent() == item2->parent() ) return i1.row() < i2.row();
 153     else return *item1 < *item2;
 154 }
 155
 156 QMimeData *PLModel::mimeData( const QModelIndexList &indexes ) const
 157 {
 158     PlMimeData *plMimeData = new PlMimeData();
 159     QModelIndexList list;
 160
 161     foreach( const QModelIndex &index, indexes ) {
 162         if( index.isValid() && index.column() == 0 )
 163             list.append(index);
 164     }
 165
 166     qSort(list.begin(), list.end(), modelIndexLessThen);
 167
 168     PLItem *item = NULL;
 169     foreach( const QModelIndex &index, list ) {
 170         if( item )
 171         {
 172             PLItem *testee = getItem( index );
 173             while( testee->parent() )
 174             {
 175                 if( testee->parent() == item ||
 176                     testee->parent() == item->parent() ) break;
 177                 testee = testee->parent();
 178             }
 179             if( testee->parent() == item ) continue;
 180             item = getItem( index );
 181         }
 182         else
 183             item = getItem( index );
 184
 185         plMimeData->appendItem( item->inputItem() );
 186     }
 187
 188     return plMimeData;
 189 }
 190
 191 /* Drop operation */
 192 bool PLModel::dropMimeData( const QMimeData *data, Qt::DropAction action,
 193         int row, int, const QModelIndex &parent )
 194 {
 195     bool copy = action == Qt::CopyAction;
 196     if( !copy && action != Qt::MoveAction )
 197         return true;
 198
 199     const PlMimeData *plMimeData = qobject_cast<const PlMimeData*>( data );
 200     if( plMimeData )
 201     {
 202         if( copy )
 203             dropAppendCopy( plMimeData, getItem( parent ), row );
 204         else
 205             dropMove( plMimeData, getItem( parent ), row );
 206     }
 207     return true;
 208 }
 209
 210 void PLModel::dropAppendCopy( const PlMimeData *plMimeData, PLItem *target, int pos )
 211 {
 212     PL_LOCK;
 213
 214     playlist_item_t *p_parent =
 215         playlist_ItemGetByInput( p_playlist, target->inputItem() );
 216     if( !p_parent ) return;
 217
 218     if( pos == -1 ) pos = PLAYLIST_END;
 219
 220     QList<input_item_t*> inputItems = plMimeData->inputItems();
 221
 222     foreach( input_item_t* p_input, inputItems )
 223     {
 224         playlist_item_t *p_item = playlist_ItemGetByInput( p_playlist, p_input );
 225         if( !p_item ) continue;
 226         pos = playlist_NodeAddCopy( p_playlist, p_item, p_parent, pos );
 227     }
 228
 229     PL_UNLOCK;
 230 }
 231
 232 void PLModel::dropMove( const PlMimeData * plMimeData, PLItem *target, int row )
 233 {
 234     QList<input_item_t*> inputItems = plMimeData->inputItems();
 235     QList<PLItem*> model_items;
 236     playlist_item_t *pp_items[inputItems.count()];
 237
 238     PL_LOCK;
 239
 240     playlist_item_t *p_parent =
 241         playlist_ItemGetByInput( p_playlist, target->inputItem() );
 242
 243     if( !p_parent || row > p_parent->i_children )
 244     {
 245         PL_UNLOCK; return;
 246     }
 247
 248     int new_pos = row == -1 ? p_parent->i_children : row;
 249     int model_pos = new_pos;
 250     int i = 0;
 251
 252     foreach( input_item_t *p_input, inputItems )
 253     {
 254         playlist_item_t *p_item = playlist_ItemGetByInput( p_playlist, p_input );
 255         if( !p_item ) continue;
 256
 257         PLItem *item = findByInput( rootItem, p_input->i_id );
 258         if( !item ) continue;
 259
 260         /* Better not try to move a node into itself.
 261            Abort the whole operation in that case,
 262            because it is ambiguous. */
 263         PLItem *climber = target;
 264         while( climber )
 265         {
 266             if( climber == item )
 267             {
 268                 PL_UNLOCK; return;
 269             }
 270             climber = climber->parent();
 271         }
 272
 273         if( item->parent() == target &&
 274             target->children.indexOf( item ) < new_pos )
 275             model_pos--;
 276
 277         model_items.append( item );
 278         pp_items[i] = p_item;
 279         i++;
 280     }
 281
 282     if( model_items.isEmpty() )
 283     {
 284         PL_UNLOCK; return;
 285     }
 286
 287     playlist_TreeMoveMany( p_playlist, i, pp_items, p_parent, new_pos );
 288
 289     PL_UNLOCK;
 290
 291     foreach( PLItem *item, model_items )
 292         takeItem( item );
 293
 294     insertChildren( target, model_items, model_pos );
 295 }
 296
 297 /* remove item with its id */
 298 void PLModel::removeItem( int i_id )
 299 {
 300     PLItem *item = findById( rootItem, i_id );
 301     removeItem( item );
 302 }
 303
 304 void PLModel::activateItem( const QModelIndex &index )
 305 {
 306     assert( index.isValid() );
 307     const PLItem *item = getItem( index );
 308     assert( item );
 309     PL_LOCK;
 310     playlist_item_t *p_item = playlist_ItemGetById( p_playlist, item->i_id );
 311     activateItem( p_item );
 312     PL_UNLOCK;
 313 }
 314
 315 /* Convenient overloaded private version of activateItem
 316  * Must be entered with PL lock */
 317 void PLModel::activateItem( playlist_item_t *p_item )
 318 {
 319     if( !p_item ) return;
 320     playlist_item_t *p_parent = p_item;
 321     while( p_parent )
 322     {
 323         if( p_parent->i_id == rootItem->id() ) break;
 324         p_parent = p_parent->p_parent;
 325     }
 326     if( p_parent )
 327         playlist_Control( p_playlist, PLAYLIST_VIEWPLAY, pl_Locked,
 328                 p_parent, p_item );
 329 }
 330
 331 /****************** Base model mandatory implementations *****************/
 332 QVariant PLModel::data( const QModelIndex &index, const int role ) const
 333 {
 334     if( !index.isValid() ) return QVariant();
 335     const PLItem *item = getItem( index );
 336     if( role == Qt::DisplayRole )
 337     {
 338         int metadata = columnToMeta( index.column() );
 339         if( metadata == COLUMN_END ) return QVariant();
 340
 341         QString returninfo;
 342         if( metadata == COLUMN_NUMBER )
 343             returninfo = QString::number( index.row() + 1 );
 344         else if( metadata == COLUMN_COVER )
 345         {
 346             QString artUrl;
 347             artUrl = InputManager::decodeArtURL( item->inputItem() );
 348             if( artUrl.isEmpty() )
 349             {
 350                 for( int i = 0; i < item->childCount(); i++ )
 351                 {
 352                     artUrl = InputManager::decodeArtURL( item->child( i )->inputItem() );
 353                     if( !artUrl.isEmpty() )
 354                         break;
 355                 }
 356             }
 357             return QVariant( artUrl );
 358         }
 359         else
 360         {
 361             char *psz = psz_column_meta( item->inputItem(), metadata );
 362             returninfo = qfu( psz );
 363             free( psz );
 364         }
 365         return QVariant( returninfo );
 366     }
 367     else if( role == Qt::DecorationRole && index.column() == 0  )
 368     {
 369         /* Used to segfault here because i_type wasn't always initialized */
 370         return QVariant( PLModel::icons[item->inputItem()->i_type] );
 371     }
 372     else if( role == Qt::FontRole )
 373     {
 374         QFont f;
 375         f.setPointSize( __MAX( f.pointSize() - 1 + i_zoom, 4 ) );
 376         if( isCurrent( index ) )
 377             f.setBold( true );
 378         return QVariant( f );
 379     }
 380     else if( role == Qt::BackgroundRole && isCurrent( index ) )
 381     {
 382         return QVariant( QBrush( Qt::gray ) );
 383     }
 384     else if( role == IsCurrentRole )
 385     {
 386         return QVariant( isCurrent( index ) );
 387     }
 388     else if( role == IsLeafNodeRole )
 389     {
 390         QVariant isLeaf;
 391         PL_LOCK;
 392         playlist_item_t *plItem =
 393             playlist_ItemGetById( p_playlist, item->i_id );
 394
 395         if( plItem )
 396             isLeaf = plItem->i_children == -1;
 397
 398         PL_UNLOCK;
 399         return isLeaf;
 400     }
 401     else if( role == IsCurrentsParentNodeRole )
 402     {
 403         return QVariant( isParent( index, currentIndex() ) );
 404     }
 405     return QVariant();
 406 }
 407
 408 /* Seek from current index toward the top and see if index is one of parent nodes */
 409 bool PLModel::isParent( const QModelIndex &index, const QModelIndex &current ) const
 410 {
 411     if( !index.isValid() )
 412         return false;
 413
 414     if( index == current )
 415         return true;
 416
 417     if( !current.isValid() || !current.parent().isValid() )
 418         return false;
 419
 420     return isParent( index, current.parent() );
 421 }
 422
 423 bool PLModel::isCurrent( const QModelIndex &index ) const
 424 {
 425     return getItem( index )->inputItem() == THEMIM->currentInputItem();
 426 }
 427
 428 int PLModel::itemId( const QModelIndex &index ) const
 429 {
 430     return getItem( index )->id();
 431 }
 432
 433 QVariant PLModel::headerData( int section, Qt::Orientation orientation,
 434                               int role ) const
 435 {
 436     if (orientation != Qt::Horizontal || role != Qt::DisplayRole)
 437         return QVariant();
 438
 439     int meta_col = columnToMeta( section );
 440
 441     if( meta_col == COLUMN_END ) return QVariant();
 442
 443     return QVariant( qfu( psz_column_title( meta_col ) ) );
 444 }
 445
 446 QModelIndex PLModel::index( const int row, const int column, const QModelIndex &parent )
 447                   const
 448 {
 449     PLItem *parentItem = parent.isValid() ? getItem( parent ) : rootItem;
 450
 451     PLItem *childItem = parentItem->child( row );
 452     if( childItem )
 453         return createIndex( row, column, childItem );
 454     else
 455         return QModelIndex();
 456 }
 457
 458 QModelIndex PLModel::index( const int i_id, const int c )
 459 {
 460     return index( findById( rootItem, i_id ), c );
 461 }
 462
 463 /* Return the index of a given item */
 464 QModelIndex PLModel::index( PLItem *item, int column ) const
 465 {
 466     if( !item ) return QModelIndex();
 467     const PLItem *parent = item->parent();
 468     if( parent )
 469         return createIndex( parent->children.lastIndexOf( item ),
 470                             column, item );
 471     return QModelIndex();
 472 }
 473
 474 QModelIndex PLModel::currentIndex() const
 475 {
 476     input_thread_t *p_input_thread = THEMIM->getInput();
 477     if( !p_input_thread ) return QModelIndex();
 478     PLItem *item = findByInput( rootItem, input_GetItem( p_input_thread )->i_id );
 479     return index( item, 0 );
 480 }
 481
 482 QModelIndex PLModel::parent( const QModelIndex &index ) const
 483 {
 484     if( !index.isValid() ) return QModelIndex();
 485
 486     PLItem *childItem = getItem( index );
 487     if( !childItem )
 488     {
 489         msg_Err( p_playlist, "NULL CHILD" );
 490         return QModelIndex();
 491     }
 492
 493     PLItem *parentItem = childItem->parent();
 494     if( !parentItem || parentItem == rootItem ) return QModelIndex();
 495     if( !parentItem->parent() )
 496     {
 497         msg_Err( p_playlist, "No parent parent, trying row 0 " );
 498         msg_Err( p_playlist, "----- PLEASE REPORT THIS ------" );
 499         return createIndex( 0, 0, parentItem );
 500     }
 501     return createIndex(parentItem->row(), 0, parentItem);
 502 }
 503
 504 int PLModel::columnCount( const QModelIndex &) const
 505 {
 506     return columnFromMeta( COLUMN_END );
 507 }
 508
 509 int PLModel::rowCount( const QModelIndex &parent ) const
 510 {
 511     const PLItem *parentItem = parent.isValid() ? getItem( parent ) : rootItem;
 512     return parentItem->childCount();
 513 }
 514
 515 QStringList PLModel::selectedURIs()
 516 {
 517     QStringList lst;
 518     for( int i = 0; i < current_selection.count(); i++ )
 519     {
 520         const PLItem *item = getItem( current_selection[i] );
 521         if( item )
 522         {
 523             PL_LOCK;
 524             playlist_item_t *p_item = playlist_ItemGetById( p_playlist, item->i_id );
 525             if( p_item )
 526             {
 527                 char *psz = input_item_GetURI( p_item->p_input );
 528                 if( psz )
 529                 {
 530                     lst.append( qfu(psz) );
 531                     free( psz );
 532                 }
 533             }
 534             PL_UNLOCK;
 535         }
 536     }
 537     return lst;
 538 }
 539
 540 /************************* Lookups *****************************/
 541 PLItem *PLModel::findById( PLItem *root, int i_id ) const
 542 {
 543     return findInner( root, i_id, false );
 544 }
 545
 546 PLItem *PLModel::findByInput( PLItem *root, int i_id ) const
 547 {
 548     PLItem *result = findInner( root, i_id, true );
 549     return result;
 550 }
 551
 552 PLItem * PLModel::findInner( PLItem *root, int i_id, bool b_input ) const
 553 {
 554     if( !root ) return NULL;
 555
 556     if( !b_input && root->id() == i_id )
 557         return root;
 558
 559     else if( b_input && root->inputItem()->i_id == i_id )
 560         return root;
 561
 562     QList<PLItem *>::iterator it = root->children.begin();
 563     while ( it != root->children.end() )
 564     {
 565         if( !b_input && (*it)->id() == i_id )
 566             return (*it);
 567
 568         else if( b_input && (*it)->inputItem()->i_id == i_id )
 569             return (*it);
 570
 571         if( (*it)->childCount() )
 572         {
 573             PLItem *childFound = findInner( (*it), i_id, b_input );
 574             if( childFound )
 575                 return childFound;
 576         }
 577         ++it;
 578     }
 579     return NULL;
 580 }
 581
 582 bool PLModel::canEdit() const
 583 {
 584     return (
 585             rootItem != NULL &&
 586             (
 587              rootItem->inputItem() == p_playlist->p_playing->p_input ||
 588              ( p_playlist->p_media_library &&
 589               rootItem->inputItem() == p_playlist->p_media_library->p_input )
 590             )
 591            );
 592 }
 593
 594 /************************* Updates handling *****************************/
 595
 596 /**** Events processing ****/
 597 void PLModel::processInputItemUpdate( input_thread_t *p_input )
 598 {
 599     if( !p_input ) return;
 600     if( p_input && !( p_input->b_dead || !vlc_object_alive( p_input ) ) )
 601     {
 602         PLItem *item = findByInput( rootItem, input_GetItem( p_input )->i_id );
 603         if( item ) emit currentIndexChanged( index( item, 0 ) );
 604     }
 605     processInputItemUpdate( input_GetItem( p_input ) );
 606 }
 607
 608 void PLModel::processInputItemUpdate( input_item_t *p_item )
 609 {
 610     if( !p_item ||  p_item->i_id <= 0 ) return;
 611     PLItem *item = findByInput( rootItem, p_item->i_id );
 612     if( item )
 613         updateTreeItem( item );
 614 }
 615
 616 void PLModel::processItemRemoval( int i_id )
 617 {
 618     if( i_id <= 0 ) return;
 619     removeItem( i_id );
 620 }
 621
 622 void PLModel::processItemAppend( int i_item, int i_parent )
 623 {
 624     playlist_item_t *p_item = NULL;
 625     PLItem *newItem = NULL;
 626     int pos;
 627
 628     /* Find the Parent */
 629     PLItem *nodeParentItem = findById( rootItem, i_parent );
 630     if( !nodeParentItem ) return;
 631
 632     /* Search for an already matching children */
 633     foreach( const PLItem *existing, nodeParentItem->children )
 634         if( existing->i_id == i_item ) return;
 635
 636     /* Find the child */
 637     PL_LOCK;
 638     p_item = playlist_ItemGetById( p_playlist, i_item );
 639     if( !p_item || p_item->i_flags & PLAYLIST_DBL_FLAG )
 640     {
 641         PL_UNLOCK; return;
 642     }
 643
 644     for( pos = 0; pos < p_item->p_parent->i_children; pos++ )
 645         if( p_item->p_parent->pp_children[pos] == p_item ) break;
 646
 647     newItem = new PLItem( p_item, nodeParentItem );
 648     PL_UNLOCK;
 649
 650     /* We insert the newItem (children) inside the parent */
 651     beginInsertRows( index( nodeParentItem, 0 ), pos, pos );
 652     nodeParentItem->insertChild( newItem, pos );
 653     endInsertRows();
 654
 655     if( newItem->inputItem() == THEMIM->currentInputItem() )
 656         emit currentIndexChanged( index( newItem, 0 ) );
 657
 658     search( latestSearch, index( rootItem, 0), false /*FIXME*/ );
 659 }
 660
 661 void PLModel::rebuild( playlist_item_t *p_root )
 662 {
 663     /* Invalidate cache */
 664     i_cached_id = i_cached_input_id = -1;
 665
 666     if( rootItem ) rootItem->removeChildren();
 667
 668     PL_LOCK;
 669     if( p_root ) // Can be NULL
 670     {
 671         delete rootItem;
 672         rootItem = new PLItem( p_root );
 673     }
 674     assert( rootItem );
 675     /* Recreate from root */
 676     updateChildren( rootItem );
 677     PL_UNLOCK;
 678
 679     /* And signal the view */
 680     reset();
 681
 682     if( p_root ) emit rootIndexChanged();
 683 }
 684
 685 void PLModel::takeItem( PLItem *item )
 686 {
 687     assert( item );
 688     PLItem *parent = item->parent();
 689     assert( parent );
 690     int i_index = parent->children.indexOf( item );
 691
 692     beginRemoveRows( index( parent, 0 ), i_index, i_index );
 693     parent->takeChildAt( i_index );
 694     endRemoveRows();
 695 }
 696
 697 void PLModel::insertChildren( PLItem *node, QList<PLItem*>& items, int i_pos )
 698 {
 699     assert( node );
 700     int count = items.count();
 701     if( !count ) return;
 702     printf( "Here I am\n");
 703     beginInsertRows( index( node, 0 ), i_pos, i_pos + count - 1 );
 704     for( int i = 0; i < count; i++ )
 705     {
 706         node->children.insert( i_pos + i, items[i] );
 707         items[i]->parentItem = node;
 708     }
 709     endInsertRows();
 710 }
 711
 712 void PLModel::removeItem( PLItem *item )
 713 {
 714     if( !item ) return;
 715
 716     i_cached_id = -1;
 717     i_cached_input_id = -1;
 718
 719     if( item->parent() ) {
 720         int i = item->parent()->children.indexOf( item );
 721         beginRemoveRows( index( item->parent(), 0), i, i );
 722         item->parent()->children.removeAt(i);
 723         delete item;
 724         endRemoveRows();
 725     }
 726     else delete item;
 727
 728     if(item == rootItem)
 729     {
 730         rootItem = NULL;
 731         rebuild( p_playlist->p_playing );
 732     }
 733 }
 734
 735 /* This function must be entered WITH the playlist lock */
 736 void PLModel::updateChildren( PLItem *root )
 737 {
 738     playlist_item_t *p_node = playlist_ItemGetById( p_playlist, root->id() );
 739     updateChildren( p_node, root );
 740 }
 741
 742 /* This function must be entered WITH the playlist lock */
 743 void PLModel::updateChildren( playlist_item_t *p_node, PLItem *root )
 744 {
 745     for( int i = 0; i < p_node->i_children ; i++ )
 746     {
 747         if( p_node->pp_children[i]->i_flags & PLAYLIST_DBL_FLAG ) continue;
 748         PLItem *newItem =  new PLItem( p_node->pp_children[i], root );
 749         root->appendChild( newItem );
 750         if( p_node->pp_children[i]->i_children != -1 )
 751             updateChildren( p_node->pp_children[i], newItem );
 752     }
 753 }
 754
 755 /* Function doesn't need playlist-lock, as we don't touch playlist_item_t stuff here*/
 756 void PLModel::updateTreeItem( PLItem *item )
 757 {
 758     if( !item ) return;
 759     emit dataChanged( index( item, 0 ) , index( item, columnCount( QModelIndex() ) ) );
 760 }
 761
 762 /************************* Actions ******************************/
 763
 764 /**
 765  * Deletion, don't delete items childrens if item is going to be
 766  * delete allready, so we remove childrens from selection-list.
 767  */
 768 void PLModel::doDelete( QModelIndexList selected )
 769 {
 770     if( !canEdit() ) return;
 771
 772     while( !selected.isEmpty() )
 773     {
 774         QModelIndex index = selected[0];
 775         selected.removeAt( 0 );
 776
 777         if( index.column() != 0 ) continue;
 778
 779         PLItem *item = getItem( index );
 780         if( item->childCount() )
 781             recurseDelete( item->children, &selected );
 782
 783         PL_LOCK;
 784         playlist_DeleteFromInput( p_playlist, item->inputItem(), pl_Locked );
 785         PL_UNLOCK;
 786
 787         removeItem( item );
 788     }
 789 }
 790
 791 void PLModel::recurseDelete( QList<PLItem*> children, QModelIndexList *fullList )
 792 {
 793     for( int i = children.count() - 1; i >= 0 ; i-- )
 794     {
 795         PLItem *item = children[i];
 796         if( item->childCount() )
 797             recurseDelete( item->children, fullList );
 798         fullList->removeAll( index( item, 0 ) );
 799     }
 800 }
 801
 802 /******* Volume III: Sorting and searching ********/
 803 void PLModel::sort( const int column, Qt::SortOrder order )
 804 {
 805     sort( rootItem->id(), column, order );
 806 }
 807
 808 void PLModel::sort( const int i_root_id, const int column, Qt::SortOrder order )
 809 {
 810     msg_Dbg( p_intf, "Sorting by column %i, order %i", column, order );
 811
 812     int meta = columnToMeta( column );
 813     if( meta == COLUMN_END ) return;
 814
 815     PLItem *item = findById( rootItem, i_root_id );
 816     if( !item ) return;
 817     QModelIndex qIndex = index( item, 0 );
 818     int count = item->childCount();
 819     if( count )
 820     {
 821         beginRemoveRows( qIndex, 0, count - 1 );
 822         item->removeChildren();
 823         endRemoveRows( );
 824     }
 825
 826     PL_LOCK;
 827     {
 828         playlist_item_t *p_root = playlist_ItemGetById( p_playlist,
 829                                                         i_root_id );
 830         if( p_root )
 831         {
 832             playlist_RecursiveNodeSort( p_playlist, p_root,
 833                                         i_column_sorting( meta ),
 834                                         order == Qt::AscendingOrder ?
 835                                             ORDER_NORMAL : ORDER_REVERSE );
 836         }
 837     }
 838
 839     i_cached_id = i_cached_input_id = -1;
 840
 841     if( count )
 842     {
 843         beginInsertRows( qIndex, 0, count - 1 );
 844         updateChildren( item );
 845         endInsertRows( );
 846     }
 847     PL_UNLOCK;
 848     /* if we have popup item, try to make sure that you keep that item visible */
 849     if( i_popup_item > -1 )
 850     {
 851         PLItem *popupitem = findById( rootItem, i_popup_item );
 852         if( popupitem ) emit currentIndexChanged( index( popupitem, 0 ) );
 853         /* reset i_popup_item as we don't show it as selected anymore anyway */
 854         i_popup_item = -1;
 855     }
 856     else if( currentIndex().isValid() ) emit currentIndexChanged( currentIndex() );
 857 }
 858
 859 void PLModel::search( const QString& search_text, const QModelIndex & idx, bool b_recursive )
 860 {
 861     latestSearch = search_text;
 862
 863     /** \todo Fire the search with a small delay ? */
 864     PL_LOCK;
 865     {
 866         playlist_item_t *p_root = playlist_ItemGetById( p_playlist,
 867                                                         itemId( idx ) );
 868         assert( p_root );
 869         playlist_LiveSearchUpdate( p_playlist, p_root, qtu( search_text ),
 870                                    b_recursive );
 871         if( idx.isValid() )
 872         {
 873             PLItem *searchRoot = getItem( idx );
 874
 875             beginRemoveRows( idx, 0, searchRoot->childCount() - 1 );
 876             searchRoot->removeChildren();
 877             endRemoveRows();
 878
 879             beginInsertRows( idx, 0, searchRoot->childCount() - 1 );
 880             updateChildren( searchRoot ); // The PL_LOCK is needed here
 881             endInsertRows();
 882
 883             PL_UNLOCK;
 884             return;
 885         }
 886     }
 887     PL_UNLOCK;
 888     rebuild();
 889 }
 890
 891 /*********** Popup *********/
 892 bool PLModel::popup( const QModelIndex & index, const QPoint &point, const QModelIndexList &list )
 893 {
 894     int i_id = index.isValid() ? itemId( index ) : rootItem->id();
 895
 896     PL_LOCK;
 897     playlist_item_t *p_item = playlist_ItemGetById( p_playlist, i_id );
 898     if( !p_item )
 899     {
 900         PL_UNLOCK;
 901         return false;
 902     }
 903
 904     i_popup_item   = index.isValid() ? p_item->i_id : -1;
 905     i_popup_parent = index.isValid() ?
 906         ( p_item->p_parent ? p_item->p_parent->i_id : -1 ) :
 907         ( rootItem->id() );
 908
 909     bool tree = ( rootItem && rootItem->id() != p_playlist->p_playing->i_id ) ||
 910                 var_InheritBool( p_intf, "playlist-tree" );
 911
 912     input_item_t *p_input = p_item->p_input;
 913     vlc_gc_incref( p_input );
 914     PL_UNLOCK;
 915
 916     /* */
 917     QMenu menu;
 918
 919     /* Play/Stream/Info static actions */
 920     if( i_popup_item > -1 )
 921     {
 922         menu.addAction( QIcon( ":/menu/play" ), qtr(I_POP_PLAY), this, SLOT( popupPlay() ) );
 923         menu.addAction( QIcon( ":/menu/stream" ),
 924                         qtr(I_POP_STREAM), this, SLOT( popupStream() ) );
 925         menu.addAction( qtr(I_POP_SAVE), this, SLOT( popupSave() ) );
 926         menu.addAction( QIcon( ":/menu/info" ), qtr(I_POP_INFO), this, SLOT( popupInfo() ) );
 927         if( p_input->psz_uri && !strncasecmp( p_input->psz_uri, "file://", 7 ) )
 928         {
 929             menu.addAction( QIcon( ":/type/folder-grey" ),
 930                             qtr( I_POP_EXPLORE ), this, SLOT( popupExplore() ) );
 931         }
 932         menu.addSeparator();
 933     }
 934     vlc_gc_decref( p_input );
 935
 936     /* In PL or ML, allow to add a file/folder */
 937     if( canEdit() )
 938     {
 939         QIcon addIcon( ":/buttons/playlist/playlist_add" );
 940         menu.addSeparator();
 941         if( tree ) menu.addAction( addIcon, qtr(I_POP_NEWFOLDER), this, SLOT( popupAddNode() ) );
 942         if( rootItem->id() == THEPL->p_playing->i_id )
 943         {
 944             menu.addAction( addIcon, qtr(I_PL_ADDF), THEDP, SLOT( simplePLAppendDialog()) );
 945             menu.addAction( addIcon, qtr(I_PL_ADDDIR), THEDP, SLOT( PLAppendDir()) );
 946             menu.addAction( addIcon, qtr(I_OP_ADVOP), THEDP, SLOT( PLAppendDialog()) );
 947         }
 948         else if( THEPL->p_media_library &&
 949                     rootItem->id() == THEPL->p_media_library->i_id )
 950         {
 951             menu.addAction( addIcon, qtr(I_PL_ADDF), THEDP, SLOT( simpleMLAppendDialog()) );
 952             menu.addAction( addIcon, qtr(I_PL_ADDDIR), THEDP, SLOT( MLAppendDir() ) );
 953             menu.addAction( addIcon, qtr(I_OP_ADVOP), THEDP, SLOT( MLAppendDialog() ) );
 954         }
 955     }
 956
 957     /* Item removal */
 958     if( i_popup_item > -1 )
 959     {
 960         if( rootItem->id() != THEPL->p_playing->i_id )
 961             menu.addAction( qtr( "Add to playlist"), this, SLOT( popupAddToPlaylist() ) );
 962         menu.addAction( QIcon( ":/buttons/playlist/playlist_remove" ),
 963                         qtr(I_POP_DEL), this, SLOT( popupDel() ) );
 964     }
 965
 966     menu.addSeparator();
 967     /* Playlist sorting */
 968     if( !sortingMenu )
 969     {
 970         sortingMenu = new QMenu( qtr( "Sort by" ) );
 971         sortingMapper = new QSignalMapper( this );
 972         /* Choose what columns to show in sorting menu, not sure if this should be configurable*/
 973         QList<int> sortingColumns;
 974         sortingColumns << COLUMN_TITLE << COLUMN_ARTIST << COLUMN_ALBUM << COLUMN_TRACK_NUMBER << COLUMN_URI;
 975         foreach( int Column, sortingColumns )
 976         {
 977             QAction *asc  = sortingMenu->addAction( qfu( psz_column_title( Column ) ) + " " + qtr("Ascending") );
 978             QAction *desc = sortingMenu->addAction( qfu( psz_column_title( Column ) ) + " " + qtr("Descending") );
 979             sortingMapper->setMapping( asc, columnFromMeta(Column) + 1 );
 980             sortingMapper->setMapping( desc, -1 * (columnFromMeta(Column)+1) );
 981             CONNECT( asc, triggered(), sortingMapper, map() );
 982             CONNECT( desc, triggered(), sortingMapper, map() );
 983         }
 984         CONNECT( sortingMapper, mapped( int ), this, popupSort( int ) );
 985     }
 986     menu.addMenu( sortingMenu );
 987
 988     /* Zoom */
 989     QMenu *zoomMenu = new QMenu( qtr( "Display size" ) );
 990     zoomMenu->addAction( qtr( "Increase" ), this, SLOT( increaseZoom() ) );
 991     zoomMenu->addAction( qtr( "Decrease" ), this, SLOT( decreaseZoom() ) );
 992     menu.addMenu( zoomMenu );
 993
 994     /* Store the current selected item for popup*() methods */
 995     current_selection = list;
 996
 997     /* Display and forward the result */
 998     if( !menu.isEmpty() )
 999     {
1000         menu.exec( point ); return true;
1001     }
1002     else return false;
1003 }
1004
1005 void PLModel::popupDel()
1006 {
1007     doDelete( current_selection );
1008 }
1009
1010 void PLModel::popupPlay()
1011 {
1012     PL_LOCK;
1013     {
1014         playlist_item_t *p_item = playlist_ItemGetById( p_playlist,
1015                                                         i_popup_item );
1016         activateItem( p_item );
1017     }
1018     PL_UNLOCK;
1019 }
1020
1021 void PLModel::popupAddToPlaylist()
1022 {
1023     playlist_Lock( THEPL );
1024
1025     foreach( QModelIndex currentIndex, current_selection )
1026     {
1027         playlist_item_t *p_item = playlist_ItemGetById( THEPL, itemId( currentIndex ) );
1028         if( !p_item ) continue;
1029
1030         playlist_NodeAddCopy( THEPL, p_item,
1031                               THEPL->p_playing,
1032                               PLAYLIST_END );
1033     }
1034     playlist_Unlock( THEPL );
1035 }
1036
1037 void PLModel::popupInfo()
1038 {
1039     PL_LOCK;
1040     playlist_item_t *p_item = playlist_ItemGetById( p_playlist,
1041                                                     i_popup_item );
1042     if( p_item )
1043     {
1044         input_item_t* p_input = p_item->p_input;
1045         vlc_gc_incref( p_input );
1046         PL_UNLOCK;
1047         MediaInfoDialog *mid = new MediaInfoDialog( p_intf, p_input );
1048         vlc_gc_decref( p_input );
1049         mid->setParent( PlaylistDialog::getInstance( p_intf ),
1050                         Qt::Dialog );
1051         mid->show();
1052     } else
1053         PL_UNLOCK;
1054 }
1055
1056 void PLModel::popupStream()
1057 {
1058     QStringList mrls = selectedURIs();
1059     if( !mrls.isEmpty() )
1060         THEDP->streamingDialog( NULL, mrls[0], false );
1061 }
1062
1063 void PLModel::popupSave()
1064 {
1065     QStringList mrls = selectedURIs();
1066     if( !mrls.isEmpty() )
1067         THEDP->streamingDialog( NULL, mrls[0] );
1068 }
1069
1070 void PLModel::popupExplore()
1071 {
1072     char *uri = NULL, *path = NULL;
1073
1074     PL_LOCK;
1075     playlist_item_t *p_item = playlist_ItemGetById( p_playlist, i_popup_item );
1076     if( p_item )
1077     {
1078         input_item_t *p_input = p_item->p_input;
1079         uri = input_item_GetURI( p_input );
1080     }
1081     PL_UNLOCK;
1082
1083     if( uri != NULL )
1084     {
1085         path = make_path( uri );
1086         free( uri );
1087     }
1088     if( path == NULL )
1089         return;
1090
1091     QFileInfo info( qfu( path ) );
1092     free( path );
1093
1094     QDesktopServices::openUrl( QUrl::fromLocalFile( info.absolutePath() ) );
1095 }
1096
1097 void PLModel::popupAddNode()
1098 {
1099     bool ok;
1100     QString name = QInputDialog::getText( PlaylistDialog::getInstance( p_intf ),
1101         qtr( I_NEW_DIR ), qtr( I_NEW_DIR_NAME ),
1102         QLineEdit::Normal, QString(), &ok);
1103     if( !ok || name.isEmpty() ) return;
1104
1105     PL_LOCK;
1106     playlist_item_t *p_item = playlist_ItemGetById( p_playlist,
1107                                                     i_popup_parent );
1108     if( p_item )
1109         playlist_NodeCreate( p_playlist, qtu( name ), p_item, PLAYLIST_END, 0, NULL );
1110     PL_UNLOCK;
1111 }
1112
1113 void PLModel::popupSort( int column )
1114 {
1115     sort( i_popup_parent,
1116           column > 0 ? column - 1 : -column - 1,
1117           column > 0 ? Qt::AscendingOrder : Qt::DescendingOrder );
1118 }
1119
1120 /* */
1121 void PLModel::increaseZoom()
1122 {
1123     i_zoom++;
1124     emit layoutChanged();
1125 }
1126
1127 void PLModel::decreaseZoom()
1128 {
1129     i_zoom--;
1130     emit layoutChanged();
1131 }
1132
1133 /******************* Drag and Drop helper class ******************/
1134 PlMimeData::~PlMimeData()
1135 {
1136     foreach( input_item_t *p_item, _inputItems )
1137         vlc_gc_decref( p_item );
1138 }
1139
1140 void PlMimeData::appendItem( input_item_t *p_item )
1141 {
1142     vlc_gc_incref( p_item );
1143     _inputItems.append( p_item );
1144 }
1145
1146 QList<input_item_t*> PlMimeData::inputItems() const
1147 {
1148     return _inputItems;
1149 }
1150
1151 QStringList PlMimeData::formats () const
1152 {
1153     QStringList fmts;
1154     fmts << "vlc/qt-input-items";
1155     return fmts;
1156 }