git.sesse.net Git - vlc/blob - modules/gui/qt4/components/playlist/selector.cpp

   1 /*****************************************************************************
   2  * selector.cpp : Playlist source selector
   3  ****************************************************************************
   4  * Copyright (C) 2006-2009 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@videolan.org>
   8  *          Jean-Baptiste Kempf
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 #ifdef HAVE_CONFIG_H
  26 # include "config.h"
  27 #endif
  28
  29 #include <assert.h>
  30
  31 #include "components/playlist/selector.hpp"
  32 #include "playlist_item.hpp"
  33 #include "qt4.hpp"
  34 #include "../../dialogs_provider.hpp"
  35 #include "playlist.hpp"
  36 #include "util/customwidgets.hpp"
  37
  38 #include <QVBoxLayout>
  39 #include <QHeaderView>
  40 #include <QMimeData>
  41 #include <QInputDialog>
  42 #include <QMessageBox>
  43
  44 #include <vlc_playlist.h>
  45 #include <vlc_services_discovery.h>
  46
  47 PLSelItem::PLSelItem ( QTreeWidgetItem *i, const QString& text )
  48     : qitem(i), lblAction( NULL)
  49 {
  50     layout = new QHBoxLayout();
  51     layout->setContentsMargins(0,0,0,0);
  52     layout->addSpacing( 3 );
  53
  54     lbl = new QLabel( text );
  55
  56     layout->addWidget(lbl, 1);
  57
  58     setLayout( layout );
  59
  60     setMinimumHeight( 22 ); //Action icon height plus 6
  61 }
  62
  63 void PLSelItem::addAction( ItemAction act, const QString& tooltip )
  64 {
  65     if( lblAction ) return; //might change later
  66
  67     QIcon icon;
  68
  69     switch( act )
  70     {
  71     case ADD_ACTION:
  72         icon = QIcon( ":/buttons/playlist/playlist_add" ); break;
  73     case RM_ACTION:
  74         icon = QIcon( ":/buttons/playlist/playlist_remove" ); break;
  75     }
  76
  77     lblAction = new QVLCFramelessButton();
  78     lblAction->setIcon( icon );
  79
  80     if( !tooltip.isEmpty() ) lblAction->setToolTip( tooltip );
  81
  82     layout->addWidget( lblAction, 0 );
  83     lblAction->hide();
  84     layout->addSpacing( 3 );
  85
  86     CONNECT( lblAction, clicked(), this, triggerAction() );
  87 }
  88
  89 void PLSelItem::showAction() { if( lblAction ) lblAction->show(); }
  90
  91 void PLSelItem::hideAction() { if( lblAction ) lblAction->hide(); }
  92
  93 void PLSelItem::setText( const QString& text ) { lbl->setText( text ); }
  94
  95 void PLSelItem::enterEvent( QEvent *ev ){ showAction(); }
  96
  97 void PLSelItem::leaveEvent( QEvent *ev ){ hideAction(); }
  98
  99 PLSelector::PLSelector( QWidget *p, intf_thread_t *_p_intf )
 100            : QTreeWidget( p ), p_intf(_p_intf)
 101 {
 102     setFrameStyle( QFrame::NoFrame );
 103     viewport()->setAutoFillBackground( false );
 104     setIconSize( QSize( 24,24 ) );
 105     setIndentation( 14 );
 106     header()->hide();
 107     setRootIsDecorated( true );
 108     setAlternatingRowColors( false );
 109     podcastsParent = NULL;
 110     podcastsParentId = -1;
 111
 112     viewport()->setAcceptDrops(true);
 113     setDropIndicatorShown(true);
 114     invisibleRootItem()->setFlags( invisibleRootItem()->flags() & ~Qt::ItemIsDropEnabled );
 115
 116     CONNECT( THEMIM, playlistItemAppended( int, int ),
 117              this, plItemAdded( int, int ) );
 118     CONNECT( THEMIM, playlistItemRemoved( int ),
 119              this, plItemRemoved( int ) );
 120     CONNECT( THEMIM->getIM(), metaChanged( input_item_t *),
 121             this, inputItemUpdate( input_item_t * ) );
 122
 123     createItems();
 124     CONNECT( this, itemActivated( QTreeWidgetItem *, int ),
 125              this, setSource( QTreeWidgetItem *) );
 126     CONNECT( this, itemClicked( QTreeWidgetItem *, int ),
 127              this, setSource( QTreeWidgetItem *) );
 128
 129     /* I believe this is unnecessary, seeing
 130        QStyle::SH_ItemView_ActivateItemOnSingleClick
 131         CONNECT( view, itemClicked( QTreeWidgetItem *, int ),
 132              this, setSource( QTreeWidgetItem *) ); */
 133
 134     /* select the first item */
 135 //  view->setCurrentIndex( model->index( 0, 0, QModelIndex() ) );
 136 }
 137
 138 PLSelector::~PLSelector()
 139 {
 140     if( podcastsParent )
 141     {
 142         int c = podcastsParent->childCount();
 143         for( int i = 0; i < c; i++ )
 144         {
 145             QTreeWidgetItem *item = podcastsParent->child(i);
 146             input_item_t *p_input = item->data( 0, IN_ITEM_ROLE ).value<input_item_t*>();
 147             vlc_gc_decref( p_input );
 148         }
 149     }
 150 }
 151
 152 void PLSelector::setSource( QTreeWidgetItem *item )
 153 {
 154     if( !item )
 155         return;
 156
 157     bool b_ok;
 158     int i_type = item->data( 0, TYPE_ROLE ).toInt( &b_ok );
 159     if( !b_ok || i_type == CATEGORY_TYPE )
 160         return;
 161
 162     bool sd_loaded;
 163     if( i_type == SD_TYPE )
 164     {
 165         QString qs = item->data( 0, NAME_ROLE ).toString();
 166         sd_loaded = playlist_IsServicesDiscoveryLoaded( THEPL, qtu( qs ) );
 167         if( !sd_loaded )
 168             playlist_ServicesDiscoveryAdd( THEPL, qtu( qs ) );
 169     }
 170
 171     playlist_Lock( THEPL );
 172
 173     playlist_item_t *pl_item = NULL;
 174
 175     if( i_type == SD_TYPE )
 176     {
 177         pl_item = playlist_ChildSearchName( THEPL->p_root, qtu( item->data(0, LONGNAME_ROLE ).toString() ) );
 178         if( item->data( 0, SPECIAL_ROLE ).toInt() == IS_PODCAST )
 179         {
 180             if( pl_item && !sd_loaded )
 181             {
 182                 podcastsParentId = pl_item->i_id;
 183                 for( int i=0; i < pl_item->i_children; i++ )
 184                     addPodcastItem( pl_item->pp_children[i] );
 185             }
 186             pl_item = NULL; //to prevent activating it
 187         }
 188     }
 189     else
 190         pl_item = item->data( 0, PL_ITEM_ROLE ).value<playlist_item_t*>();
 191
 192     playlist_Unlock( THEPL );
 193
 194     if( pl_item )
 195        emit activated( pl_item );
 196 }
 197
 198 PLSelItem * PLSelector::addItem (
 199   SelectorItemType type, const QString& str, bool drop,
 200   QTreeWidgetItem* parentItem )
 201 {
 202   QTreeWidgetItem *item = parentItem ?
 203       new QTreeWidgetItem( parentItem ) : new QTreeWidgetItem( this );
 204   PLSelItem *selItem = new PLSelItem( item, str );
 205   setItemWidget( item, 0, selItem );
 206   item->setData( 0, TYPE_ROLE, (int)type );
 207   if( !drop ) item->setFlags( item->flags() & ~Qt::ItemIsDropEnabled );
 208
 209   return selItem;
 210 }
 211
 212 PLSelItem * putSDData( PLSelItem* item, const char* name, const char* longname )
 213 {
 214     item->treeItem()->setData( 0, NAME_ROLE, qfu( name ) );
 215     item->treeItem()->setData( 0, LONGNAME_ROLE, qfu( longname ) );
 216     return item;
 217 }
 218
 219 PLSelItem * putPLData( PLSelItem* item, playlist_item_t* plItem )
 220 {
 221     item->treeItem()->setData( 0, PL_ITEM_ROLE, QVariant::fromValue( plItem ) );
 222 /*    item->setData( 0, PL_ITEM_ID_ROLE, plItem->i_id );
 223     item->setData( 0, IN_ITEM_ROLE, QVariant::fromValue( (void*) plItem->p_input ) ); );*/
 224     return item;
 225 }
 226
 227 PLSelItem *PLSelector::addPodcastItem( playlist_item_t *p_item )
 228 {
 229   vlc_gc_incref( p_item->p_input );
 230   char *psz_name = input_item_GetName( p_item->p_input );
 231   PLSelItem *item = addItem(
 232       PL_ITEM_TYPE, qfu( psz_name ), false, podcastsParent );
 233   item->addAction( RM_ACTION, qtr( "Remove this podcast subscription" ) );
 234   item->treeItem()->setData( 0, PL_ITEM_ROLE, QVariant::fromValue( p_item ) );
 235   item->treeItem()->setData( 0, PL_ITEM_ID_ROLE, QVariant(p_item->i_id) );
 236   item->treeItem()->setData( 0, IN_ITEM_ROLE, QVariant::fromValue( p_item->p_input ) );
 237   CONNECT( item, action( PLSelItem* ), this, podcastRemove( PLSelItem* ) );
 238   free( psz_name );
 239   return item;
 240 }
 241
 242 void PLSelector::createItems()
 243 {
 244     PLSelItem *pl = putPLData( addItem( PL_ITEM_TYPE, qtr( "Playlist" ), true ),
 245                               THEPL->p_playing );
 246     pl->treeItem()->setData( 0, SPECIAL_ROLE, QVariant( IS_PL ) );
 247
 248     PLSelItem *ml = putPLData( addItem( PL_ITEM_TYPE, qtr( "Media Library" ), true ),
 249                               THEPL->p_media_library );
 250     ml->treeItem()->setData( 0, SPECIAL_ROLE, QVariant( IS_ML ) );
 251
 252     QTreeWidgetItem *mfldrs = NULL;
 253
 254     QTreeWidgetItem *shouts = NULL;
 255
 256     char **ppsz_longnames;
 257     char **ppsz_names = vlc_sd_GetNames( THEPL, &ppsz_longnames );
 258     if( !ppsz_names )
 259         return;
 260
 261     char **ppsz_name = ppsz_names, **ppsz_longname = ppsz_longnames;
 262     for( ; *ppsz_name; ppsz_name++, ppsz_longname++ )
 263     {
 264         //msg_Dbg( p_intf, "Adding a SD item: %s", *ppsz_longname );
 265 #define SD_IS( name ) ( !strcmp( *ppsz_name, name ) )
 266
 267         if( SD_IS("shoutcast") || SD_IS("shoutcasttv") ||
 268             SD_IS("frenchtv") || SD_IS("freebox") )
 269         {
 270             if( !shouts ) shouts = addItem( CATEGORY_TYPE, qtr( "Shoutcast" ),
 271                                             false )->treeItem();
 272             putSDData( addItem( SD_TYPE, *ppsz_longname, false, shouts ),
 273                        *ppsz_name, *ppsz_longname );
 274         }
 275         else if( SD_IS("video_dir") || SD_IS("audio_dir") || SD_IS("picture_dir") )
 276         {
 277             if( !mfldrs ) mfldrs = addItem( CATEGORY_TYPE, qtr( "Media Folders" ),
 278                                             false )->treeItem();
 279             putSDData( addItem( SD_TYPE, *ppsz_longname, false, mfldrs ),
 280                        *ppsz_name, *ppsz_longname );
 281         }
 282         else if( !strncmp( *ppsz_name, "podcast", 7 ) )
 283         {
 284
 285             PLSelItem *podItem = addItem( SD_TYPE, qtr( "Podcasts" ), false );
 286             putSDData( podItem, *ppsz_name, *ppsz_longname );
 287             podItem->treeItem()->setData( 0, SPECIAL_ROLE, QVariant( IS_PODCAST ) );
 288             podItem->addAction( ADD_ACTION, qtr( "Subscribe to a podcast" ) );
 289             CONNECT( podItem, action( PLSelItem* ), this, podcastAdd( PLSelItem* ) );
 290
 291             podcastsParent = podItem->treeItem();
 292         }
 293         else
 294         {
 295             putSDData( addItem( SD_TYPE, qtr( *ppsz_longname ), false ),
 296                        *ppsz_name, *ppsz_longname );
 297         }
 298
 299 #undef SD_IS
 300
 301         free( *ppsz_name );
 302         free( *ppsz_longname );
 303     }
 304     free( ppsz_names );
 305     free( ppsz_longnames );
 306 }
 307
 308 QStringList PLSelector::mimeTypes() const
 309 {
 310     QStringList types;
 311     types << "vlc/qt-playlist-item";
 312     return types;
 313 }
 314
 315 bool PLSelector::dropMimeData ( QTreeWidgetItem * parent, int index,
 316   const QMimeData * data, Qt::DropAction action )
 317 {
 318     if( !parent ) return false;
 319
 320     QVariant type = parent->data( 0, TYPE_ROLE );
 321     if( type == QVariant() ) return false;
 322     int i_truth = parent->data( 0, SPECIAL_ROLE ).toInt();
 323
 324     if( i_truth != IS_PL && i_truth != IS_ML ) return false;
 325     bool to_pl = ( i_truth == IS_PL );
 326
 327     if( data->hasFormat( "vlc/qt-playlist-item" ) )
 328     {
 329         QByteArray encodedData = data->data( "vlc/qt-playlist-item" );
 330         QDataStream stream( &encodedData, QIODevice::ReadOnly );
 331         playlist_Lock( THEPL );
 332         while( !stream.atEnd() )
 333         {
 334             PLItem *item;
 335             stream.readRawData( (char*)&item, sizeof(PLItem*) );
 336             input_item_t *pl_input =item->inputItem();
 337             playlist_AddExt ( THEPL,
 338                 pl_input->psz_uri, pl_input->psz_name,
 339                 PLAYLIST_APPEND | PLAYLIST_SPREPARSE, PLAYLIST_END,
 340                 pl_input->i_duration,
 341                 pl_input->i_options, pl_input->ppsz_options, pl_input->optflagc,
 342                 to_pl, true );
 343         }
 344         playlist_Unlock( THEPL );
 345     }
 346     return true;
 347 }
 348
 349 void PLSelector::plItemAdded( int item, int parent )
 350 {
 351     if( parent != podcastsParentId ) return;
 352
 353     playlist_Lock( THEPL );
 354
 355     playlist_item_t *p_item = playlist_ItemGetById( THEPL, item );
 356     if( !p_item ) {
 357         playlist_Unlock( THEPL );
 358         return;
 359     }
 360
 361     int c = podcastsParent->childCount();
 362     for( int i = 0; i < c; i++ )
 363     {
 364         QTreeWidgetItem *podItem = podcastsParent->child(i);
 365         if( podItem->data( 0, PL_ITEM_ID_ROLE ).toInt() == item )
 366         {
 367           //msg_Dbg( p_intf, "Podcast already in: (%d) %s", item, p_item->p_input->psz_uri);
 368           playlist_Unlock( THEPL );
 369           return;
 370         }
 371     }
 372
 373     //msg_Dbg( p_intf, "Adding podcast: (%d) %s", item, p_item->p_input->psz_uri );
 374     addPodcastItem( p_item );
 375
 376     playlist_Unlock( THEPL );
 377
 378     podcastsParent->setExpanded( true );
 379 }
 380
 381 void PLSelector::plItemRemoved( int id )
 382 {
 383     int c = podcastsParent->childCount();
 384     for( int i = 0; i < c; i++ )
 385     {
 386         QTreeWidgetItem *item = podcastsParent->child(i);
 387         if( item->data( 0, PL_ITEM_ID_ROLE ).toInt() == id )
 388         {
 389             input_item_t *p_input = item->data( 0, IN_ITEM_ROLE ).value<input_item_t*>();
 390             //msg_Dbg( p_intf, "Removing podcast: (%d) %s", id, p_input->psz_uri );
 391             vlc_gc_decref( p_input );
 392             delete item;
 393             return;
 394         }
 395     }
 396 }
 397
 398 void PLSelector::inputItemUpdate( input_item_t *arg )
 399 {
 400     int c = podcastsParent->childCount();
 401     for( int i = 0; i < c; i++ )
 402     {
 403         QTreeWidgetItem *item = podcastsParent->child(i);
 404         input_item_t *p_input = item->data( 0, IN_ITEM_ROLE ).value<input_item_t*>();
 405         if( p_input == arg )
 406         {
 407             PLSelItem *si = itemWidget( item );
 408             char *psz_name = input_item_GetName( p_input );
 409             si->setText( qfu( psz_name ) );
 410             free( psz_name );
 411             return;
 412         }
 413     }
 414 }
 415
 416 void PLSelector::podcastAdd( PLSelItem* item )
 417 {
 418     bool ok;
 419     QString url = QInputDialog::getText( this, qtr( "Subscribe" ),
 420                                          qtr( "Enter URL of the podcast to subscribe to:" ),
 421                                          QLineEdit::Normal, QString(), &ok );
 422     if( !ok || url.isEmpty() ) return;
 423
 424     setSource( podcastsParent ); //to load the SD in case it's not loaded
 425
 426     vlc_object_t *p_obj = (vlc_object_t*) vlc_object_find_name(
 427         p_intf->p_libvlc, "podcast", FIND_CHILD );
 428     if( !p_obj ) return;
 429
 430     QString request("ADD:");
 431     request += url;
 432     var_SetString( p_obj, "podcast-request", qtu( request ) );
 433     vlc_object_release( p_obj );
 434 }
 435
 436 void PLSelector::podcastRemove( PLSelItem* item )
 437 {
 438     //FIXME will translators know to leave that %1 somewhere inside?
 439     QString question ( qtr( "Do you really want to unsubscribe from %1?" ) );
 440     question = question.arg( item->text() );
 441     QMessageBox::StandardButton res =
 442         QMessageBox::question( this, qtr( "Unsubscribe" ), question,
 443                                QMessageBox::Ok | QMessageBox::Cancel,
 444                                QMessageBox::Cancel );
 445     if( res == QMessageBox::Cancel ) return;
 446
 447     input_item_t *input = item->treeItem()->data( 0, IN_ITEM_ROLE ).value<input_item_t*>();
 448     if( !input ) return;
 449
 450     vlc_object_t *p_obj = (vlc_object_t*) vlc_object_find_name(
 451         p_intf->p_libvlc, "podcast", FIND_CHILD );
 452     if( !p_obj ) return;
 453
 454     QString request("RM:");
 455     char *psz_uri = input_item_GetURI( input );
 456     request += qfu( psz_uri );
 457     var_SetString( p_obj, "podcast-request", qtu( request ) );
 458     vlc_object_release( p_obj );
 459     free( psz_uri );
 460 }
 461
 462 PLSelItem * PLSelector::itemWidget( QTreeWidgetItem *item )
 463 {
 464     return ( static_cast<PLSelItem*>( QTreeWidget::itemWidget( item, 0 ) ) );
 465 }
 466
 467 void PLSelector::drawBranches ( QPainter * painter, const QRect & rect, const QModelIndex & index ) const
 468 {
 469     if( !model()->hasChildren( index ) ) return;
 470     QStyleOption option;
 471     option.initFrom( this );
 472     option.rect = rect.adjusted( rect.width() - indentation(), 0, 0, 0 );
 473
 474     /*option.state = QStyle::State_Children;
 475     if( isExpanded( index ) ) option.state |=  QStyle::State_Open;*/
 476     style()->drawPrimitive( isExpanded( index ) ?
 477                             QStyle::PE_IndicatorArrowDown :
 478                             QStyle::PE_IndicatorArrowRight, &option, painter );
 479 }