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 QVLCIconLabel( icon );
  78
  79     if( !tooltip.isEmpty() ) lblAction->setToolTip( tooltip );
  80
  81     layout->addWidget( lblAction, 0 );
  82     lblAction->hide();
  83     layout->addSpacing( 3 );
  84
  85     CONNECT( lblAction, clicked(), this, triggerAction() );
  86 }
  87
  88 void PLSelItem::showAction() { if( lblAction ) lblAction->show(); }
  89
  90 void PLSelItem::hideAction() { if( lblAction ) lblAction->hide(); }
  91
  92 void PLSelItem::setText( const QString& text ) { lbl->setText( text ); }
  93
  94 void PLSelItem::enterEvent( QEvent *ev ){ showAction(); }
  95
  96 void PLSelItem::leaveEvent( QEvent *ev ){ hideAction(); }
  97
  98 PLSelector::PLSelector( QWidget *p, intf_thread_t *_p_intf )
  99            : QTreeWidget( p ), p_intf(_p_intf)
 100 {
 101     setFrameStyle( QFrame::NoFrame );
 102     viewport()->setAutoFillBackground( false );
 103     setIconSize( QSize( 24,24 ) );
 104     setIndentation( 10 );
 105     header()->hide();
 106     setRootIsDecorated( false );
 107     setAlternatingRowColors( false );
 108     podcastsParent = NULL;
 109     podcastsParentId = -1;
 110
 111     viewport()->setAcceptDrops(true);
 112     setDropIndicatorShown(true);
 113     invisibleRootItem()->setFlags( invisibleRootItem()->flags() & ~Qt::ItemIsDropEnabled );
 114
 115     CONNECT( THEMIM, playlistItemAppended( int, int ),
 116              this, plItemAdded( int, int ) );
 117     CONNECT( THEMIM, playlistItemRemoved( int ),
 118              this, plItemRemoved( int ) );
 119     CONNECT( THEMIM->getIM(), metaChanged( input_item_t *),
 120             this, inputItemUpdate( input_item_t * ) );
 121
 122     createItems();
 123     CONNECT( this, itemActivated( QTreeWidgetItem *, int ),
 124              this, setSource( QTreeWidgetItem *) );
 125     /* I believe this is unnecessary, seeing
 126        QStyle::SH_ItemView_ActivateItemOnSingleClick
 127         CONNECT( view, itemClicked( QTreeWidgetItem *, int ),
 128              this, setSource( QTreeWidgetItem *) ); */
 129
 130     /* select the first item */
 131 //  view->setCurrentIndex( model->index( 0, 0, QModelIndex() ) );
 132 }
 133
 134 PLSelector::~PLSelector()
 135 {
 136     if( podcastsParent )
 137     {
 138         int c = podcastsParent->childCount();
 139         for( int i = 0; i < c; i++ )
 140         {
 141             QTreeWidgetItem *item = podcastsParent->child(i);
 142             input_item_t *p_input = item->data( 0, IN_ITEM_ROLE ).value<input_item_t*>();
 143             vlc_gc_decref( p_input );
 144         }
 145     }
 146 }
 147
 148 void PLSelector::setSource( QTreeWidgetItem *item )
 149 {
 150     if( !item )
 151         return;
 152
 153     bool b_ok;
 154     int i_type = item->data( 0, TYPE_ROLE ).toInt( &b_ok );
 155     if( !b_ok || i_type == CATEGORY_TYPE )
 156         return;
 157
 158     bool sd_loaded;
 159     if( i_type == SD_TYPE )
 160     {
 161         QString qs = item->data( 0, NAME_ROLE ).toString();
 162         sd_loaded = playlist_IsServicesDiscoveryLoaded( THEPL, qtu( qs ) );
 163         if( !sd_loaded )
 164             playlist_ServicesDiscoveryAdd( THEPL, qtu( qs ) );
 165     }
 166
 167     playlist_Lock( THEPL );
 168
 169     playlist_item_t *pl_item = NULL;
 170
 171     if( i_type == SD_TYPE )
 172     {
 173         pl_item = playlist_ChildSearchName( THEPL->p_root_category, qtu( item->data(0, LONGNAME_ROLE ).toString() ) );
 174         if( item->data( 0, SPECIAL_ROLE ).toInt() == IS_PODCAST )
 175         {
 176             if( pl_item && !sd_loaded )
 177             {
 178                 podcastsParentId = pl_item->i_id;
 179                 for( int i=0; i < pl_item->i_children; i++ )
 180                     addPodcastItem( pl_item->pp_children[i] );
 181             }
 182             pl_item = NULL; //to prevent activating it
 183         }
 184     }
 185     else
 186         pl_item = item->data( 0, PL_ITEM_ROLE ).value<playlist_item_t*>();
 187
 188     playlist_Unlock( THEPL );
 189
 190     if( pl_item )
 191        emit activated( pl_item );
 192 }
 193
 194 PLSelItem * PLSelector::addItem (
 195   SelectorItemType type, const QString& str, bool drop,
 196   QTreeWidgetItem* parentItem )
 197 {
 198   QTreeWidgetItem *item = parentItem ?
 199       new QTreeWidgetItem( parentItem ) : new QTreeWidgetItem( this );
 200   PLSelItem *selItem = new PLSelItem( item, str );
 201   setItemWidget( item, 0, selItem );
 202   item->setData( 0, TYPE_ROLE, (int)type );
 203   if( !drop ) item->setFlags( item->flags() & ~Qt::ItemIsDropEnabled );
 204
 205   return selItem;
 206 }
 207
 208 PLSelItem * putSDData( PLSelItem* item, const char* name, const char* longname )
 209 {
 210     item->treeItem()->setData( 0, NAME_ROLE, qfu( name ) );
 211     item->treeItem()->setData( 0, LONGNAME_ROLE, qfu( longname ) );
 212     return item;
 213 }
 214
 215 PLSelItem * putPLData( PLSelItem* item, playlist_item_t* plItem )
 216 {
 217     item->treeItem()->setData( 0, PL_ITEM_ROLE, QVariant::fromValue( plItem ) );
 218 /*    item->setData( 0, PL_ITEM_ID_ROLE, plItem->i_id );
 219     item->setData( 0, IN_ITEM_ROLE, QVariant::fromValue( (void*) plItem->p_input ) ); );*/
 220     return item;
 221 }
 222
 223 PLSelItem *PLSelector::addPodcastItem( playlist_item_t *p_item )
 224 {
 225   vlc_gc_incref( p_item->p_input );
 226   char *psz_name = input_item_GetName( p_item->p_input );
 227   PLSelItem *item = addItem(
 228       PL_ITEM_TYPE, qfu( psz_name ), false, podcastsParent );
 229   item->addAction( RM_ACTION, qtr( "Remove this podcast subscription" ) );
 230   item->treeItem()->setData( 0, PL_ITEM_ROLE, QVariant::fromValue( p_item ) );
 231   item->treeItem()->setData( 0, PL_ITEM_ID_ROLE, QVariant(p_item->i_id) );
 232   item->treeItem()->setData( 0, IN_ITEM_ROLE, QVariant::fromValue( p_item->p_input ) );
 233   CONNECT( item, action( PLSelItem* ), this, podcastRemove( PLSelItem* ) );
 234   free( psz_name );
 235   return item;
 236 }
 237
 238 void PLSelector::createItems()
 239 {
 240     PLSelItem *pl = putPLData( addItem( PL_ITEM_TYPE, qtr( "Playlist" ), true ),
 241                               THEPL->p_local_category );
 242     pl->treeItem()->setData( 0, SPECIAL_ROLE, QVariant( IS_PL ) );
 243
 244     PLSelItem *ml = putPLData( addItem( PL_ITEM_TYPE, qtr( "Media Library" ), true ),
 245                               THEPL->p_ml_category );
 246     ml->treeItem()->setData( 0, SPECIAL_ROLE, QVariant( IS_ML ) );
 247
 248     QTreeWidgetItem *msrc = addItem( CATEGORY_TYPE, qtr( "Media Sources" ),
 249                                       false )->treeItem();
 250
 251     QTreeWidgetItem *mfldrs = NULL;
 252
 253     QTreeWidgetItem *shouts = NULL;
 254
 255     msrc->setExpanded( true );
 256
 257     char **ppsz_longnames;
 258     char **ppsz_names = vlc_sd_GetNames( &ppsz_longnames );
 259     if( !ppsz_names )
 260         return;
 261
 262     char **ppsz_name = ppsz_names, **ppsz_longname = ppsz_longnames;
 263     for( ; *ppsz_name; ppsz_name++, ppsz_longname++ )
 264     {
 265         //msg_Dbg( p_intf, "Adding a SD item: %s", *ppsz_longname );
 266 #define SD_IS( name ) ( !strcmp( *ppsz_name, name ) )
 267
 268         if( SD_IS("shoutcast") || SD_IS("shoutcasttv") ||
 269             SD_IS("frenchtv") || SD_IS("freebox") )
 270         {
 271             if( !shouts ) shouts = addItem( CATEGORY_TYPE, qtr( "Shoutcast" ),
 272                                             false, msrc )->treeItem();
 273             putSDData( addItem( SD_TYPE, *ppsz_longname, false, shouts ),
 274                        *ppsz_name, *ppsz_longname );
 275         }
 276         else if( SD_IS("video_dir") || SD_IS("audio_dir") || SD_IS("picture_dir") )
 277         {
 278             if( !mfldrs ) mfldrs = addItem( CATEGORY_TYPE, qtr( "Media Folders" ),
 279                                             false, msrc )->treeItem();
 280             putSDData( addItem( SD_TYPE, *ppsz_longname, false, mfldrs ),
 281                        *ppsz_name, *ppsz_longname );
 282         }
 283         else if( SD_IS("podcast") )
 284         {
 285
 286             PLSelItem *podItem = addItem( SD_TYPE, qtr( "Podcasts" ), false, msrc );
 287             putSDData( podItem, *ppsz_name, *ppsz_longname );
 288             podItem->treeItem()->setData( 0, SPECIAL_ROLE, QVariant( IS_PODCAST ) );
 289             podItem->addAction( ADD_ACTION, qtr( "Subscribe to a podcast" ) );
 290             CONNECT( podItem, action( PLSelItem* ), this, podcastAdd( PLSelItem* ) );
 291
 292             podcastsParent = podItem->treeItem();
 293         }
 294         else
 295         {
 296             putSDData( addItem( SD_TYPE, qtr( *ppsz_longname ), false, msrc ),
 297                        *ppsz_name, *ppsz_longname );
 298         }
 299
 300 #undef SD_IS
 301
 302         free( *ppsz_name );
 303         free( *ppsz_longname );
 304     }
 305     free( ppsz_names );
 306     free( ppsz_longnames );
 307 }
 308
 309 QStringList PLSelector::mimeTypes() const
 310 {
 311     QStringList types;
 312     types << "vlc/qt-playlist-item";
 313     return types;
 314 }
 315
 316 bool PLSelector::dropMimeData ( QTreeWidgetItem * parent, int index,
 317   const QMimeData * data, Qt::DropAction action )
 318 {
 319     if( !parent ) return false;
 320
 321     QVariant type = parent->data( 0, TYPE_ROLE );
 322     if( type == QVariant() ) return false;
 323     int i_truth = parent->data( 0, SPECIAL_ROLE ).toInt();
 324
 325     if( i_truth != IS_PL && i_truth != IS_ML ) return false;
 326     bool to_pl = ( i_truth == IS_PL );
 327
 328     if( data->hasFormat( "vlc/qt-playlist-item" ) )
 329     {
 330         QByteArray encodedData = data->data( "vlc/qt-playlist-item" );
 331         QDataStream stream( &encodedData, QIODevice::ReadOnly );
 332         playlist_Lock( THEPL );
 333         while( !stream.atEnd() )
 334         {
 335             PLItem *item;
 336             stream.readRawData( (char*)&item, sizeof(PLItem*) );
 337             input_item_t *pl_input =item->inputItem();
 338             playlist_AddExt ( THEPL,
 339                 pl_input->psz_uri, pl_input->psz_name,
 340                 PLAYLIST_APPEND | PLAYLIST_SPREPARSE, PLAYLIST_END,
 341                 pl_input->i_duration,
 342                 pl_input->i_options, pl_input->ppsz_options, pl_input->optflagc,
 343                 to_pl, true );
 344         }
 345         playlist_Unlock( THEPL );
 346     }
 347     return true;
 348 }
 349
 350 void PLSelector::plItemAdded( int item, int parent )
 351 {
 352     if( parent != podcastsParentId ) return;
 353
 354     playlist_Lock( THEPL );
 355
 356     playlist_item_t *p_item = playlist_ItemGetById( THEPL, item );
 357     if( !p_item ) {
 358         playlist_Unlock( THEPL );
 359         return;
 360     }
 361
 362     int c = podcastsParent->childCount();
 363     for( int i = 0; i < c; i++ )
 364     {
 365         QTreeWidgetItem *podItem = podcastsParent->child(i);
 366         if( podItem->data( 0, PL_ITEM_ID_ROLE ).toInt() == item )
 367         {
 368           //msg_Dbg( p_intf, "Podcast already in: (%d) %s", item, p_item->p_input->psz_uri);
 369           playlist_Unlock( THEPL );
 370           return;
 371         }
 372     }
 373
 374     //msg_Dbg( p_intf, "Adding podcast: (%d) %s", item, p_item->p_input->psz_uri );
 375     addPodcastItem( p_item );
 376
 377     playlist_Unlock( THEPL );
 378
 379     podcastsParent->setExpanded( true );
 380 }
 381
 382 void PLSelector::plItemRemoved( int id )
 383 {
 384     int c = podcastsParent->childCount();
 385     for( int i = 0; i < c; i++ )
 386     {
 387         QTreeWidgetItem *item = podcastsParent->child(i);
 388         if( item->data( 0, PL_ITEM_ID_ROLE ).toInt() == id )
 389         {
 390             input_item_t *p_input = item->data( 0, IN_ITEM_ROLE ).value<input_item_t*>();
 391             //msg_Dbg( p_intf, "Removing podcast: (%d) %s", id, p_input->psz_uri );
 392             vlc_gc_decref( p_input );
 393             delete item;
 394             return;
 395         }
 396     }
 397 }
 398
 399 void PLSelector::inputItemUpdate( input_item_t *arg )
 400 {
 401     int c = podcastsParent->childCount();
 402     for( int i = 0; i < c; i++ )
 403     {
 404         QTreeWidgetItem *item = podcastsParent->child(i);
 405         input_item_t *p_input = item->data( 0, IN_ITEM_ROLE ).value<input_item_t*>();
 406         if( p_input == arg )
 407         {
 408             PLSelItem *si = itemWidget( item );
 409             char *psz_name = input_item_GetName( p_input );
 410             si->setText( qfu( psz_name ) );
 411             free( psz_name );
 412             return;
 413         }
 414     }
 415 }
 416
 417 void PLSelector::podcastAdd( PLSelItem* item )
 418 {
 419     bool ok;
 420     QString url = QInputDialog::getText( this, qtr( "Subscribe" ),
 421                                          qtr( "Enter URL of the podcast to subscribe to:" ),
 422                                          QLineEdit::Normal, QString(), &ok );
 423     if( !ok || url.isEmpty() ) return;
 424
 425     setSource( podcastsParent ); //to load the SD in case it's not loaded
 426
 427     vlc_object_t *p_obj = (vlc_object_t*) vlc_object_find_name(
 428         p_intf->p_libvlc, "podcast", FIND_CHILD );
 429     if( !p_obj ) return;
 430
 431     QString request("ADD:");
 432     request += url;
 433     var_SetString( p_obj, "podcast-request", qtu( request ) );
 434     vlc_object_release( p_obj );
 435 }
 436
 437 void PLSelector::podcastRemove( PLSelItem* item )
 438 {
 439     //FIXME will translators know to leave that %1 somewhere inside?
 440     QString question ( qtr( "Do you really want to unsubscribe from %1?" ) );
 441     question = question.arg( item->text() );
 442     QMessageBox::StandardButton res =
 443         QMessageBox::question( this, qtr( "Unsubscribe" ), question,
 444                                QMessageBox::Ok | QMessageBox::Cancel,
 445                                QMessageBox::Cancel );
 446     if( res == QMessageBox::Cancel ) return;
 447
 448     input_item_t *input = item->treeItem()->data( 0, IN_ITEM_ROLE ).value<input_item_t*>();
 449     if( !input ) return;
 450
 451     vlc_object_t *p_obj = (vlc_object_t*) vlc_object_find_name(
 452         p_intf->p_libvlc, "podcast", FIND_CHILD );
 453     if( !p_obj ) return;
 454
 455     QString request("RM:");
 456     char *psz_uri = input_item_GetURI( input );
 457     request += qfu( psz_uri );
 458     var_SetString( p_obj, "podcast-request", qtu( request ) );
 459     vlc_object_release( p_obj );
 460     free( psz_uri );
 461 }
 462
 463 PLSelItem * PLSelector::itemWidget( QTreeWidgetItem *item )
 464 {
 465     return ( static_cast<PLSelItem*>( QTreeWidget::itemWidget( item, 0 ) ) );
 466 }
 467