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

   1 /*****************************************************************************
   2  * playlist_model.cpp : Manage playlist model
   3  ****************************************************************************
   4  * Copyright (C) 2006-2007 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  *          Ilkka Ollakkka <ileoo (at) videolan dot org>
   9  *          Jakob Leben <jleben@videolan.org>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19  * GNU General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24  *****************************************************************************/
  25
  26 #ifdef HAVE_CONFIG_H
  27 # include "config.h"
  28 #endif
  29
  30 #include "qt4.hpp"
  31 #include "dialogs_provider.hpp"
  32 #include "components/playlist/playlist_model.hpp"
  33 #include "dialogs/mediainfo.hpp"
  34 #include "dialogs/playlist.hpp"
  35 #include <vlc_intf_strings.h>
  36
  37 #include "pixmaps/types/type_unknown.xpm"
  38
  39 #include <assert.h>
  40 #include <QIcon>
  41 #include <QFont>
  42 #include <QMenu>
  43 #include <QApplication>
  44 #include <QSettings>
  45
  46 #include "sorting.h"
  47
  48 QIcon PLModel::icons[ITEM_TYPE_NUMBER];
  49
  50 /*************************************************************************
  51  * Playlist model implementation
  52  *************************************************************************/
  53
  54 /*
  55   This model is called two times, for the selector and the standard panel
  56 */
  57 PLModel::PLModel( playlist_t *_p_playlist,  /* THEPL */
  58                   intf_thread_t *_p_intf,   /* main Qt p_intf */
  59                   playlist_item_t * p_root,
  60                   /*playlist_GetPreferredNode( THEPL, THEPL->p_local_category );
  61                     and THEPL->p_root_category for SelectPL */
  62                   QObject *parent )         /* Basic Qt parent */
  63                   : QAbstractItemModel( parent )
  64 {
  65     p_intf            = _p_intf;
  66     p_playlist        = _p_playlist;
  67     i_cached_id       = -1;
  68     i_cached_input_id = -1;
  69     i_popup_item      = i_popup_parent = -1;
  70     currentItem       = NULL;
  71
  72     rootItem          = NULL; /* PLItem rootItem, will be set in rebuild( ) */
  73
  74     /* Icons initialization */
  75 #define ADD_ICON(type, x) icons[ITEM_TYPE_##type] = QIcon( x )
  76     ADD_ICON( UNKNOWN , type_unknown_xpm );
  77     ADD_ICON( FILE, ":/type/file" );
  78     ADD_ICON( DIRECTORY, ":/type/directory" );
  79     ADD_ICON( DISC, ":/type/disc" );
  80     ADD_ICON( CDDA, ":/type/cdda" );
  81     ADD_ICON( CARD, ":/type/capture-card" );
  82     ADD_ICON( NET, ":/type/net" );
  83     ADD_ICON( PLAYLIST, ":/type/playlist" );
  84     ADD_ICON( NODE, ":/type/node" );
  85 #undef ADD_ICON
  86
  87     rebuild( p_root, true );
  88     CONNECT( THEMIM->getIM(), metaChanged( input_item_t *),
  89             this, processInputItemUpdate( input_item_t *) );
  90     CONNECT( THEMIM, inputChanged( input_thread_t * ),
  91             this, processInputItemUpdate( input_thread_t* ) );
  92     CONNECT( THEMIM, playlistItemAppended( int, int ),
  93              this, processItemAppend( int, int ) );
  94     CONNECT( THEMIM, playlistItemRemoved( int ),
  95              this, processItemRemoval( int ) );
  96 }
  97
  98 PLModel::~PLModel()
  99 {
 100     delete rootItem;
 101 }
 102
 103 Qt::DropActions PLModel::supportedDropActions() const
 104 {
 105     return Qt::CopyAction; /* Why not Qt::MoveAction */
 106 }
 107
 108 Qt::ItemFlags PLModel::flags( const QModelIndex &index ) const
 109 {
 110     Qt::ItemFlags flags = QAbstractItemModel::flags( index );
 111
 112     PLItem *item = index.isValid() ? getItem( index ) : rootItem;
 113
 114     if( canEdit() )
 115     {
 116         PL_LOCK;
 117         playlist_item_t *plItem =
 118             playlist_ItemGetById( p_playlist, item->i_id );
 119
 120         if ( plItem && ( plItem->i_children > -1 ) )
 121             flags |= Qt::ItemIsDropEnabled;
 122
 123         PL_UNLOCK;
 124
 125     }
 126     flags |= Qt::ItemIsDragEnabled;
 127
 128     return flags;
 129 }
 130
 131 QStringList PLModel::mimeTypes() const
 132 {
 133     QStringList types;
 134     types << "vlc/qt-playlist-item";
 135     return types;
 136 }
 137
 138 QMimeData *PLModel::mimeData( const QModelIndexList &indexes ) const
 139 {
 140     QMimeData *mimeData = new QMimeData();
 141     QByteArray encodedData;
 142     QDataStream stream( &encodedData, QIODevice::WriteOnly );
 143     QModelIndexList list;
 144
 145     foreach( const QModelIndex &index, indexes ) {
 146         if( index.isValid() && index.column() == 0 )
 147             list.append(index);
 148     }
 149
 150     qSort(list);
 151
 152     foreach( const QModelIndex &index, list ) {
 153         PLItem *item = getItem( index );
 154         stream.writeRawData( (char*) &item, sizeof( PLItem* ) );
 155     }
 156     mimeData->setData( "vlc/qt-playlist-item", encodedData );
 157     return mimeData;
 158 }
 159
 160 /* Drop operation */
 161 bool PLModel::dropMimeData( const QMimeData *data, Qt::DropAction action,
 162                            int row, int column, const QModelIndex &parent )
 163 {
 164     if( data->hasFormat( "vlc/qt-playlist-item" ) )
 165     {
 166         if( action == Qt::IgnoreAction )
 167             return true;
 168
 169         PLItem *parentItem = parent.isValid() ? getItem( parent ) : rootItem;
 170
 171         PL_LOCK;
 172         playlist_item_t *p_parent =
 173             playlist_ItemGetById( p_playlist, parentItem->i_id );
 174         if( !p_parent || p_parent->i_children == -1 )
 175         {
 176             PL_UNLOCK;
 177             return false;
 178         }
 179
 180         bool copy = false;
 181         playlist_item_t *p_pl = p_playlist->p_local_category;
 182         playlist_item_t *p_ml = p_playlist->p_ml_category;
 183         if
 184         (
 185             row == -1 && (
 186             ( p_pl && p_parent->p_input == p_pl->p_input ) ||
 187             ( p_ml && p_parent->p_input == p_ml->p_input ) )
 188         )
 189             copy = true;
 190         PL_UNLOCK;
 191
 192         QByteArray encodedData = data->data( "vlc/qt-playlist-item" );
 193         if( copy )
 194             dropAppendCopy( encodedData, parentItem );
 195         else
 196             dropMove( encodedData, parentItem, row );
 197     }
 198     return true;
 199 }
 200
 201 void PLModel::dropAppendCopy( QByteArray& data, PLItem *target )
 202 {
 203     QDataStream stream( &data, QIODevice::ReadOnly );
 204
 205     PL_LOCK;
 206     playlist_item_t *p_parent =
 207             playlist_ItemGetById( p_playlist, target->i_id );
 208     while( !stream.atEnd() )
 209     {
 210         PLItem *item;
 211         stream.readRawData( (char*)&item, sizeof(PLItem*) );
 212         playlist_item_t *p_item = playlist_ItemGetById( p_playlist, item->i_id );
 213         if( !p_item ) continue;
 214         input_item_t *p_input = p_item->p_input;
 215         playlist_AddExt ( p_playlist,
 216             p_input->psz_uri, p_input->psz_name,
 217             PLAYLIST_APPEND | PLAYLIST_SPREPARSE, PLAYLIST_END,
 218             p_input->i_duration,
 219             p_input->i_options, p_input->ppsz_options, p_input->optflagc,
 220             ( p_parent == p_playlist->p_local_category ||
 221             p_parent == p_playlist->p_local_onelevel ),
 222             true );
 223     }
 224     PL_UNLOCK;
 225 }
 226
 227 void PLModel::dropMove( QByteArray& data, PLItem *target, int row )
 228 {
 229     QDataStream stream( &data, QIODevice::ReadOnly );
 230     QList<PLItem*> model_items;
 231     QList<int> ids;
 232     int new_pos = row == -1 ? target->children.size() : row;
 233     int model_pos = new_pos;
 234     while( !stream.atEnd() )
 235     {
 236         PLItem *item;
 237         stream.readRawData( (char*)&item, sizeof(PLItem*) );
 238
 239         /* better not try to move a node into itself: */
 240         PLItem *climber = target;
 241         while( climber )
 242         {
 243             if( climber == item ) break;
 244             climber = climber->parentItem;
 245         }
 246         if( climber ) continue;
 247
 248         if( item->parentItem == target &&
 249             target->children.indexOf( item ) < model_pos )
 250                 model_pos--;
 251
 252         ids.append( item->i_id );
 253         model_items.append( item );
 254
 255         takeItem( item );
 256     }
 257     int count = ids.size();
 258     if( count )
 259     {
 260         playlist_item_t *pp_items[count];
 261
 262         PL_LOCK;
 263         for( int i = 0; i < count; i++ )
 264         {
 265             playlist_item_t *p_item = playlist_ItemGetById( p_playlist, ids[i] );
 266             if( !p_item )
 267             {
 268                 PL_UNLOCK;
 269                 return;
 270             }
 271             pp_items[i] = p_item;
 272         }
 273         playlist_item_t *p_parent =
 274             playlist_ItemGetById( p_playlist, target->i_id );
 275         playlist_TreeMoveMany( p_playlist, count, pp_items, p_parent,
 276             new_pos );
 277         PL_UNLOCK;
 278
 279         insertChildren( target, model_items, model_pos );
 280     }
 281 }
 282
 283 /* remove item with its id */
 284 void PLModel::removeItem( int i_id )
 285 {
 286     PLItem *item = findById( rootItem, i_id );
 287     removeItem( item );
 288 }
 289
 290 void PLModel::activateItem( const QModelIndex &index )
 291 {
 292     assert( index.isValid() );
 293     PLItem *item = getItem( index );
 294     assert( item );
 295     PL_LOCK;
 296     playlist_item_t *p_item = playlist_ItemGetById( p_playlist, item->i_id );
 297     activateItem( p_item );
 298     PL_UNLOCK;
 299 }
 300
 301 /* Must be entered with lock */
 302 void PLModel::activateItem( playlist_item_t *p_item )
 303 {
 304     if( !p_item ) return;
 305     playlist_item_t *p_parent = p_item;
 306     while( p_parent )
 307     {
 308         if( p_parent->i_id == rootItem->i_id ) break;
 309         p_parent = p_parent->p_parent;
 310     }
 311     if( p_parent )
 312         playlist_Control( p_playlist, PLAYLIST_VIEWPLAY, pl_Locked,
 313                           p_parent, p_item );
 314 }
 315
 316 /****************** Base model mandatory implementations *****************/
 317 QVariant PLModel::data( const QModelIndex &index, int role ) const
 318 {
 319     if( !index.isValid() ) return QVariant();
 320     PLItem *item = getItem( index );
 321     if( role == Qt::DisplayRole )
 322     {
 323         int metadata = columnToMeta( index.column() );
 324         if( metadata == COLUMN_END ) return QVariant();
 325
 326         QString returninfo;
 327         if( metadata == COLUMN_NUMBER )
 328             returninfo = QString::number( index.row() + 1 );
 329         else
 330         {
 331             char *psz = psz_column_meta( item->p_input, metadata );
 332             returninfo = qfu( psz );
 333             free( psz );
 334         }
 335         return QVariant( returninfo );
 336     }
 337     else if( role == Qt::DecorationRole && index.column() == 0  )
 338     {
 339         /* Used to segfault here because i_type wasn't always initialized */
 340         return QVariant( PLModel::icons[item->p_input->i_type] );
 341     }
 342     else if( role == Qt::FontRole )
 343     {
 344         if( isCurrent( index ) )
 345         {
 346             QFont f; f.setBold( true ); return QVariant( f );
 347         }
 348     }
 349     return QVariant();
 350 }
 351
 352 bool PLModel::isCurrent( const QModelIndex &index ) const
 353 {
 354     if( !currentItem ) return false;
 355     return getItem( index )->p_input == currentItem->p_input;
 356 }
 357
 358 int PLModel::itemId( const QModelIndex &index ) const
 359 {
 360     return getItem( index )->i_id;
 361 }
 362
 363 QVariant PLModel::headerData( int section, Qt::Orientation orientation,
 364                               int role ) const
 365 {
 366     if (orientation != Qt::Horizontal || role != Qt::DisplayRole)
 367         return QVariant();
 368
 369     int meta_col = columnToMeta( section );
 370
 371     if( meta_col == COLUMN_END ) return QVariant();
 372
 373     return QVariant( qfu( psz_column_title( meta_col ) ) );
 374 }
 375
 376 QModelIndex PLModel::index( int row, int column, const QModelIndex &parent )
 377                   const
 378 {
 379     PLItem *parentItem = parent.isValid() ? getItem( parent ) : rootItem;
 380
 381     PLItem *childItem = parentItem->child( row );
 382     if( childItem )
 383         return createIndex( row, column, childItem );
 384     else
 385         return QModelIndex();
 386 }
 387
 388 /* Return the index of a given item */
 389 QModelIndex PLModel::index( PLItem *item, int column ) const
 390 {
 391     if( !item ) return QModelIndex();
 392     const PLItem *parent = item->parent();
 393     if( parent )
 394         return createIndex( parent->children.lastIndexOf( item ),
 395                             column, item );
 396     return QModelIndex();
 397 }
 398
 399 QModelIndex PLModel::parent( const QModelIndex &index ) const
 400 {
 401     if( !index.isValid() ) return QModelIndex();
 402
 403     PLItem *childItem = getItem( index );
 404     if( !childItem )
 405     {
 406         msg_Err( p_playlist, "NULL CHILD" );
 407         return QModelIndex();
 408     }
 409
 410     PLItem *parentItem = childItem->parent();
 411     if( !parentItem || parentItem == rootItem ) return QModelIndex();
 412     if( !parentItem->parentItem )
 413     {
 414         msg_Err( p_playlist, "No parent parent, trying row 0 " );
 415         msg_Err( p_playlist, "----- PLEASE REPORT THIS ------" );
 416         return createIndex( 0, 0, parentItem );
 417     }
 418     QModelIndex ind = createIndex(parentItem->row(), 0, parentItem);
 419     return ind;
 420 }
 421
 422 int PLModel::columnCount( const QModelIndex &i) const
 423 {
 424     return columnFromMeta( COLUMN_END );
 425 }
 426
 427 int PLModel::rowCount( const QModelIndex &parent ) const
 428 {
 429     PLItem *parentItem = parent.isValid() ? getItem( parent ) : rootItem;
 430     return parentItem->childCount();
 431 }
 432
 433 QStringList PLModel::selectedURIs()
 434 {
 435     QStringList lst;
 436     for( int i = 0; i < current_selection.size(); i++ )
 437     {
 438         PLItem *item = getItem( current_selection[i] );
 439         if( item )
 440         {
 441             PL_LOCK;
 442             playlist_item_t *p_item = playlist_ItemGetById( p_playlist, item->i_id );
 443             if( p_item )
 444             {
 445                 char *psz = input_item_GetURI( p_item->p_input );
 446                 if( psz )
 447                 {
 448                     lst.append( qfu(psz) );
 449                     free( psz );
 450                 }
 451             }
 452             PL_UNLOCK;
 453         }
 454     }
 455     return lst;
 456 }
 457
 458
 459 /************************* Lookups *****************************/
 460
 461 PLItem *PLModel::findById( PLItem *root, int i_id )
 462 {
 463     return findInner( root, i_id, false );
 464 }
 465
 466 PLItem *PLModel::findByInput( PLItem *root, int i_id )
 467 {
 468     PLItem *result = findInner( root, i_id, true );
 469     return result;
 470 }
 471
 472 #define CACHE( i, p ) { i_cached_id = i; p_cached_item = p; }
 473 #define ICACHE( i, p ) { i_cached_input_id = i; p_cached_item_bi = p; }
 474
 475 PLItem * PLModel::findInner( PLItem *root, int i_id, bool b_input )
 476 {
 477     if( !root ) return NULL;
 478     if( ( !b_input && i_cached_id == i_id) ||
 479         ( b_input && i_cached_input_id ==i_id ) )
 480     {
 481         return b_input ? p_cached_item_bi : p_cached_item;
 482     }
 483
 484     if( !b_input && root->i_id == i_id )
 485     {
 486         CACHE( i_id, root );
 487         return root;
 488     }
 489     else if( b_input && root->p_input->i_id == i_id )
 490     {
 491         ICACHE( i_id, root );
 492         return root;
 493     }
 494
 495     QList<PLItem *>::iterator it = root->children.begin();
 496     while ( it != root->children.end() )
 497     {
 498         if( !b_input && (*it)->i_id == i_id )
 499         {
 500             CACHE( i_id, (*it) );
 501             return p_cached_item;
 502         }
 503         else if( b_input && (*it)->p_input->i_id == i_id )
 504         {
 505             ICACHE( i_id, (*it) );
 506             return p_cached_item_bi;
 507         }
 508         if( (*it)->children.size() )
 509         {
 510             PLItem *childFound = findInner( (*it), i_id, b_input );
 511             if( childFound )
 512             {
 513                 if( b_input )
 514                     ICACHE( i_id, childFound )
 515                 else
 516                     CACHE( i_id, childFound )
 517                 return childFound;
 518             }
 519         }
 520         it++;
 521     }
 522     return NULL;
 523 }
 524 #undef CACHE
 525 #undef ICACHE
 526
 527 PLItem *PLModel::getItem( QModelIndex index )
 528 {
 529     assert( index.isValid() );
 530     return static_cast<PLItem*>( index.internalPointer() );
 531 }
 532
 533 int PLModel::columnToMeta( int _column ) const
 534 {
 535     int meta = 1;
 536     int column = 0;
 537
 538     while( column != _column && meta != COLUMN_END )
 539     {
 540         meta <<= 1;
 541         column++;
 542     }
 543
 544     return meta;
 545 }
 546
 547 int PLModel::columnFromMeta( int meta_col ) const
 548 {
 549     int meta = 1;
 550     int column = 0;
 551
 552     while( meta != meta_col && meta != COLUMN_END )
 553     {
 554         meta <<= 1;
 555         column++;
 556     }
 557
 558     return column;
 559 }
 560
 561 bool PLModel::canEdit() const
 562 {
 563   return (
 564     rootItem != NULL &&
 565     (
 566       rootItem->p_input == p_playlist->p_local_category->p_input ||
 567       (
 568         p_playlist->p_ml_category &&
 569         rootItem->p_input == p_playlist->p_ml_category->p_input
 570       )
 571     )
 572   );
 573 }
 574 /************************* Updates handling *****************************/
 575
 576 /**** Events processing ****/
 577 void PLModel::processInputItemUpdate( input_thread_t *p_input )
 578 {
 579     if( !p_input ) return;
 580     processInputItemUpdate( input_GetItem( p_input ) );
 581     if( p_input && !( p_input->b_dead || !vlc_object_alive( p_input ) ) )
 582     {
 583         PLItem *item = findByInput( rootItem, input_GetItem( p_input )->i_id );
 584         currentItem = item;
 585         emit currentChanged( index( item, 0 ) );
 586     }
 587     else
 588     {
 589         currentItem = NULL;
 590     }
 591 }
 592 void PLModel::processInputItemUpdate( input_item_t *p_item )
 593 {
 594     if( !p_item ||  p_item->i_id <= 0 ) return;
 595     PLItem *item = findByInput( rootItem, p_item->i_id );
 596     if( item )
 597         updateTreeItem( item );
 598 }
 599
 600 void PLModel::processItemRemoval( int i_id )
 601 {
 602     if( i_id <= 0 ) return;
 603     removeItem( i_id );
 604 }
 605
 606 void PLModel::processItemAppend( int i_item, int i_parent )
 607 {
 608     playlist_item_t *p_item = NULL;
 609     PLItem *newItem = NULL;
 610
 611     PLItem *nodeItem = findById( rootItem, i_parent );
 612     if( !nodeItem ) return;
 613
 614     foreach( PLItem *existing, nodeItem->children )
 615       if( existing->i_id == i_item ) return;
 616
 617     PL_LOCK;
 618     p_item = playlist_ItemGetById( p_playlist, i_item );
 619     if( !p_item || p_item->i_flags & PLAYLIST_DBL_FLAG ) goto end;
 620
 621     newItem = new PLItem( p_item, nodeItem );
 622     PL_UNLOCK;
 623
 624     beginInsertRows( index( nodeItem, 0 ), nodeItem->childCount(), nodeItem->childCount() );
 625     nodeItem->appendChild( newItem );
 626     endInsertRows();
 627     updateTreeItem( newItem );
 628     return;
 629 end:
 630     PL_UNLOCK;
 631     return;
 632 }
 633
 634
 635 void PLModel::rebuild()
 636 {
 637     rebuild( NULL, false );
 638 }
 639
 640 void PLModel::rebuild( playlist_item_t *p_root, bool b_first )
 641 {
 642     playlist_item_t* p_item;
 643
 644     /* Invalidate cache */
 645     i_cached_id = i_cached_input_id = -1;
 646
 647     if( rootItem ) rootItem->removeChildren();
 648
 649     PL_LOCK;
 650     if( p_root )
 651     {
 652         delete rootItem;
 653         rootItem = new PLItem( p_root );
 654     }
 655     assert( rootItem );
 656     /* Recreate from root */
 657     updateChildren( rootItem );
 658     if( (p_item = playlist_CurrentPlayingItem(p_playlist)) )
 659         currentItem = findByInput( rootItem, p_item->p_input->i_id );
 660     else
 661         currentItem = NULL;
 662     PL_UNLOCK;
 663
 664     /* And signal the view */
 665     reset();
 666
 667     emit currentChanged( index( currentItem, 0 ) );
 668 }
 669
 670 void PLModel::takeItem( PLItem *item )
 671 {
 672     assert( item );
 673     PLItem *parent = item->parentItem;
 674     assert( parent );
 675     int i_index = parent->children.indexOf( item );
 676
 677     beginRemoveRows( index( parent, 0 ), i_index, i_index );
 678     parent->takeChildAt( i_index );
 679     endRemoveRows();
 680 }
 681
 682 void PLModel::insertChildren( PLItem *node, QList<PLItem*>& items, int i_pos )
 683 {
 684     assert( node );
 685     int count = items.size();
 686     if( !count ) return;
 687     beginInsertRows( index( node, 0 ), i_pos, i_pos + count - 1 );
 688     for( int i = 0; i < count; i++ )
 689     {
 690         node->children.insert( i_pos + i, items[i] );
 691         items[i]->parentItem = node;
 692     }
 693     endInsertRows();
 694 }
 695
 696 void PLModel::removeItem( PLItem *item )
 697 {
 698     if( !item ) return;
 699
 700     if( item->i_id == i_cached_id ) i_cached_id = -1;
 701     i_cached_input_id = -1;
 702
 703     if( currentItem == item || rootItem == item)
 704     {
 705         currentItem = NULL;
 706         emit currentChanged( QModelIndex() );
 707     }
 708
 709     if(item == rootItem)
 710         rootItem = NULL;
 711
 712     if( item->parentItem ) {
 713         int i = item->parentItem->children.indexOf( item );
 714         beginRemoveRows( index( item->parentItem, 0), i, i );
 715         item->parentItem->children.removeAt(i);
 716         delete item;
 717         endRemoveRows();
 718     }
 719     else delete item;
 720
 721 }
 722
 723 /* This function must be entered WITH the playlist lock */
 724 void PLModel::updateChildren( PLItem *root )
 725 {
 726     playlist_item_t *p_node = playlist_ItemGetById( p_playlist, root->i_id );
 727     updateChildren( p_node, root );
 728 }
 729
 730 /* This function must be entered WITH the playlist lock */
 731 void PLModel::updateChildren( playlist_item_t *p_node, PLItem *root )
 732 {
 733     playlist_item_t *p_item = playlist_CurrentPlayingItem(p_playlist);
 734     for( int i = 0; i < p_node->i_children ; i++ )
 735     {
 736         if( p_node->pp_children[i]->i_flags & PLAYLIST_DBL_FLAG ) continue;
 737         PLItem *newItem =  new PLItem( p_node->pp_children[i], root );
 738         root->appendChild( newItem );
 739         if( p_item && newItem->p_input == p_item->p_input )
 740         {
 741             currentItem = newItem;
 742             emit currentChanged( index( currentItem, 0 ) );
 743         }
 744         if( p_node->pp_children[i]->i_children != -1 )
 745             updateChildren( p_node->pp_children[i], newItem );
 746     }
 747 }
 748
 749 /* Function doesn't need playlist-lock, as we don't touch playlist_item_t stuff here*/
 750 void PLModel::updateTreeItem( PLItem *item )
 751 {
 752     if( !item ) return;
 753     emit dataChanged( index( item, 0 ) , index( item, columnCount( QModelIndex() ) ) );
 754 }
 755
 756 /************************* Actions ******************************/
 757
 758 /**
 759  * Deletion, here we have to do a ugly slow hack as we retrieve the full
 760  * list of indexes to delete at once: when we delete a node and all of
 761  * its children, we need to update the list.
 762  * Todo: investigate whethere we can use ranges to be sure to delete all items?
 763  */
 764 void PLModel::doDelete( QModelIndexList selected )
 765 {
 766     if( !canEdit() ) return;
 767
 768     for( int i = selected.size() -1 ; i >= 0; i-- )
 769     {
 770         QModelIndex index = selected[i];
 771         if( index.column() != 0 ) continue;
 772         PLItem *item = getItem( index );
 773         if( item )
 774         {
 775             if( item->children.size() )
 776                 recurseDelete( item->children, &selected );
 777             doDeleteItem( item, &selected );
 778         }
 779         if( i > selected.size() ) i = selected.size();
 780     }
 781 }
 782
 783 void PLModel::recurseDelete( QList<PLItem*> children, QModelIndexList *fullList )
 784 {
 785     for( int i = children.size() - 1; i >= 0 ; i-- )
 786     {
 787         PLItem *item = children[i];
 788         if( item->children.size() )
 789             recurseDelete( item->children, fullList );
 790         doDeleteItem( item, fullList );
 791     }
 792 }
 793
 794 void PLModel::doDeleteItem( PLItem *item, QModelIndexList *fullList )
 795 {
 796     QModelIndex deleteIndex = index( item, 0 );
 797     fullList->removeAll( deleteIndex );
 798
 799     PL_LOCK;
 800     playlist_item_t *p_item = playlist_ItemGetById( p_playlist, item->i_id );
 801     if( !p_item )
 802     {
 803         PL_UNLOCK;
 804         return;
 805     }
 806     if( p_item->i_children == -1 )
 807         playlist_DeleteFromInput( p_playlist, p_item->p_input, pl_Locked );
 808     else
 809         playlist_NodeDelete( p_playlist, p_item, true, false );
 810     PL_UNLOCK;
 811
 812     /* And finally, remove it from the tree */
 813     removeItem( item );
 814 }
 815
 816 /******* Volume III: Sorting and searching ********/
 817 void PLModel::sort( int column, Qt::SortOrder order )
 818 {
 819     sort( rootItem->i_id, column, order );
 820 }
 821
 822 void PLModel::sort( int i_root_id, int column, Qt::SortOrder order )
 823 {
 824     int meta = columnToMeta( column );
 825     if( meta == COLUMN_END ) return;
 826
 827     PLItem *item = findById( rootItem, i_root_id );
 828     if( !item ) return;
 829     QModelIndex qIndex = index( item, 0 );
 830     int count = item->children.size();
 831     if( count )
 832     {
 833         beginRemoveRows( qIndex, 0, count - 1 );
 834         item->removeChildren();
 835         endRemoveRows( );
 836     }
 837
 838     PL_LOCK;
 839     {
 840         playlist_item_t *p_root = playlist_ItemGetById( p_playlist,
 841                                                         i_root_id );
 842         if( p_root )
 843         {
 844             playlist_RecursiveNodeSort( p_playlist, p_root,
 845                                         i_column_sorting( meta ),
 846                                         order == Qt::AscendingOrder ?
 847                                             ORDER_NORMAL : ORDER_REVERSE );
 848         }
 849     }
 850
 851     i_cached_id = i_cached_input_id = -1;
 852
 853     if( count )
 854     {
 855         beginInsertRows( qIndex, 0, count - 1 );
 856         updateChildren( item );
 857         endInsertRows( );
 858     }
 859     PL_UNLOCK;
 860 }
 861
 862 void PLModel::search( const QString& search_text )
 863 {
 864     /** \todo Fire the search with a small delay ? */
 865     PL_LOCK;
 866     {
 867         playlist_item_t *p_root = playlist_ItemGetById( p_playlist,
 868                                                         rootItem->i_id );
 869         assert( p_root );
 870         const char *psz_name = search_text.toUtf8().data();
 871         playlist_LiveSearchUpdate( p_playlist , p_root, psz_name );
 872     }
 873     PL_UNLOCK;
 874     rebuild();
 875 }
 876
 877 /*********** Popup *********/
 878 void PLModel::popup( QModelIndex & index, QPoint &point, QModelIndexList list )
 879 {
 880     int i_id = index.isValid() ? itemId( index ) : rootItem->i_id;
 881
 882     PL_LOCK;
 883     playlist_item_t *p_item = playlist_ItemGetById( p_playlist, i_id );
 884     if( !p_item )
 885     {
 886         PL_UNLOCK; return;
 887     }
 888     i_popup_item = index.isValid() ? p_item->i_id : -1;
 889     i_popup_parent = index.isValid() ?
 890         ( p_item->p_parent ? p_item->p_parent->i_id : -1 ) :
 891         ( p_item->i_id );
 892     i_popup_column = index.column();
 893     /* check whether we are in tree view */
 894     bool tree = false;
 895     playlist_item_t *p_up = p_item;
 896     while( p_up )
 897     {
 898         if ( p_up == p_playlist->p_root_category ) tree = true;
 899         p_up = p_up->p_parent;
 900     }
 901     PL_UNLOCK;
 902
 903     current_selection = list;
 904
 905     QMenu menu;
 906     if( i_popup_item > -1 )
 907     {
 908         menu.addAction( qtr(I_POP_PLAY), this, SLOT( popupPlay() ) );
 909         menu.addAction( qtr(I_POP_DEL), this, SLOT( popupDel() ) );
 910         menu.addSeparator();
 911         menu.addAction( qtr(I_POP_STREAM), this, SLOT( popupStream() ) );
 912         menu.addAction( qtr(I_POP_SAVE), this, SLOT( popupSave() ) );
 913         menu.addSeparator();
 914         menu.addAction( qtr(I_POP_INFO), this, SLOT( popupInfo() ) );
 915         menu.addSeparator();
 916         QMenu *sort_menu = menu.addMenu( qtr( "Sort by ") +
 917             qfu( psz_column_title( columnToMeta( index.column() ) ) ) );
 918         sort_menu->addAction( qtr( "Ascending" ),
 919             this, SLOT( popupSortAsc() ) );
 920         sort_menu->addAction( qtr( "Descending" ),
 921             this, SLOT( popupSortDesc() ) );
 922     }
 923     if( tree && canEdit() )
 924         menu.addAction( qtr(I_POP_ADD), this, SLOT( popupAddNode() ) );
 925     if( i_popup_item > -1 )
 926     {
 927         menu.addSeparator();
 928         menu.addAction( qtr( I_POP_EXPLORE ), this, SLOT( popupExplore() ) );
 929     }
 930     if( !menu.isEmpty() ) menu.exec( point );
 931 }
 932
 933 void PLModel::popupDel()
 934 {
 935     doDelete( current_selection );
 936 }
 937
 938 void PLModel::popupPlay()
 939 {
 940     PL_LOCK;
 941     {
 942         playlist_item_t *p_item = playlist_ItemGetById( p_playlist,
 943                                                         i_popup_item );
 944         activateItem( p_item );
 945     }
 946     PL_UNLOCK;
 947 }
 948
 949 void PLModel::popupInfo()
 950 {
 951     PL_LOCK;
 952     playlist_item_t *p_item = playlist_ItemGetById( p_playlist,
 953                                                     i_popup_item );
 954     if( p_item )
 955     {
 956         input_item_t* p_input = p_item->p_input;
 957         vlc_gc_incref( p_input );
 958         PL_UNLOCK;
 959         MediaInfoDialog *mid = new MediaInfoDialog( p_intf, p_input );
 960         vlc_gc_decref( p_input );
 961         mid->setParent( PlaylistDialog::getInstance( p_intf ),
 962                         Qt::Dialog );
 963         mid->show();
 964     } else
 965         PL_UNLOCK;
 966 }
 967
 968 void PLModel::popupStream()
 969 {
 970     QStringList mrls = selectedURIs();
 971     if( !mrls.isEmpty() )
 972         THEDP->streamingDialog( NULL, mrls[0], false );
 973
 974 }
 975
 976 void PLModel::popupSave()
 977 {
 978     QStringList mrls = selectedURIs();
 979     if( !mrls.isEmpty() )
 980         THEDP->streamingDialog( NULL, mrls[0] );
 981 }
 982
 983 #include <QUrl>
 984 #include <QFileInfo>
 985 #include <QDesktopServices>
 986 void PLModel::popupExplore()
 987 {
 988     PL_LOCK;
 989     playlist_item_t *p_item = playlist_ItemGetById( p_playlist,
 990                                                     i_popup_item );
 991     if( p_item )
 992     {
 993        input_item_t *p_input = p_item->p_input;
 994        char *psz_meta = input_item_GetURI( p_input );
 995        PL_UNLOCK;
 996        if( psz_meta )
 997        {
 998            const char *psz_access;
 999            const char *psz_demux;
1000            char  *psz_path;
1001            input_SplitMRL( &psz_access, &psz_demux, &psz_path, psz_meta );
1002
1003            if( EMPTY_STR( psz_access ) ||
1004                !strncasecmp( psz_access, "file", 4 ) ||
1005                !strncasecmp( psz_access, "dire", 4 ) )
1006            {
1007                QFileInfo info( qfu( psz_meta ) );
1008                QDesktopServices::openUrl(
1009                                QUrl::fromLocalFile( info.absolutePath() ) );
1010            }
1011            free( psz_meta );
1012        }
1013     }
1014     else
1015         PL_UNLOCK;
1016 }
1017
1018 #include <QInputDialog>
1019 void PLModel::popupAddNode()
1020 {
1021     bool ok;
1022     QString name = QInputDialog::getText( PlaylistDialog::getInstance( p_intf ),
1023         qtr( I_POP_ADD ), qtr( "Enter name for new node:" ),
1024         QLineEdit::Normal, QString(), &ok);
1025     if( !ok || name.isEmpty() ) return;
1026     PL_LOCK;
1027     playlist_item_t *p_item = playlist_ItemGetById( p_playlist,
1028                                                     i_popup_parent );
1029     if( p_item )
1030     {
1031         playlist_NodeCreate( p_playlist, qtu( name ), p_item, 0, NULL );
1032     }
1033     PL_UNLOCK;
1034 }
1035
1036 void PLModel::popupSortAsc()
1037 {
1038     sort( i_popup_parent, i_popup_column, Qt::AscendingOrder );
1039 }
1040
1041 void PLModel::popupSortDesc()
1042 {
1043     sort( i_popup_parent, i_popup_column, Qt::DescendingOrder );
1044 }