strawberry-audio-player-windows-mac-linux/src/core/mainwindow.cpp

/*
 * Strawberry Music Player
 * Copyright 2013, Jonas Kvinge <jonas@strawbs.net>
 * This file was part of Clementine.
 * Copyright 2010, David Sansome <me@davidsansome.com>
 *
 * Strawberry is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Strawberry is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with Strawberry.  If not, see <http://www.gnu.org/licenses/>.
 * 
 */

#include "config.h"

#include <memory>
#include <functional>
#include <cmath>

#include <QMainWindow>
#include <QApplication>
#include <QObject>
#include <QWidget>
#include <QSortFilterProxyModel>
#include <QByteArray>
#include <QDir>
#include <QFile>
#include <QFileDialog>
#include <QFileInfo>
#include <QFontMetrics>
#include <QList>
#include <QSet>
#include <QVariant>
#include <QString>
#include <QStringList>
#include <QUrl>
#include <QIcon>
#include <QMimeData>
#include <QPalette>
#include <QTimer>
#include <QtAlgorithms>
#include <QKeySequence>
#include <QMenu>
#include <QAction>
#include <QActionGroup>
#include <QShortcut>
#include <QMessageBox>
#include <QtEvents>
#include <QSettings>
#include <QtDebug>

#include "core/logging.h"
#include "core/closure.h"

#include "mainwindow.h"
#include "ui_mainwindow.h"

#include "utilities.h"
#include "timeconstants.h"
#include "commandlineoptions.h"
#include "mimedata.h"
#include "iconloader.h"
#include "taskmanager.h"
#include "song.h"
#include "stylesheetloader.h"
#include "systemtrayicon.h"
#include "windows7thumbbar.h"
#include "application.h"
#include "database.h"
#include "player.h"
#include "appearance.h"
#include "engine/enginebase.h"
#include "dialogs/errordialog.h"
#include "dialogs/about.h"
#include "dialogs/console.h"
#include "dialogs/trackselectiondialog.h"
#include "dialogs/edittagdialog.h"
#ifdef HAVE_GSTREAMER
#include "dialogs/organisedialog.h"
#endif
#include "widgets/fancytabwidget.h"
#include "widgets/playingwidget.h"
#include "widgets/sliderwidget.h"
#include "widgets/statusview.h"
#include "widgets/fileview.h"
#include "widgets/multiloadingindicator.h"
#include "widgets/osd.h"
#include "widgets/stylehelper.h"
#include "widgets/trackslider.h"
#include "collection/collection.h"
#include "collection/collectionbackend.h"
#include "collection/collectiondirectorymodel.h"
#include "collection/collectionfilterwidget.h"
#include "collection/collectionmodel.h"
#include "collection/collectionquery.h"
#include "collection/collectionview.h"
#include "collection/collectionviewcontainer.h"
#include "playlist/playlist.h"
#include "playlist/playlistbackend.h"
#include "playlist/playlistcontainer.h"
#include "playlist/playlistlistcontainer.h"
#include "playlist/playlistmanager.h"
#include "playlist/playlistsequence.h"
#include "playlist/playlistview.h"
#include "playlist/queue.h"
#include "playlist/queuemanager.h"
#include "playlistparsers/playlistparser.h"
#include "analyzer/analyzercontainer.h"
#include "equalizer/equalizer.h"
#include "globalshortcuts/globalshortcuts.h"
#include "musicbrainz/tagfetcher.h"
#include "covermanager/albumcovermanager.h"
#include "device/devicemanager.h"
#include "device/devicestatefiltermodel.h"
#include "device/deviceview.h"
#include "device/deviceviewcontainer.h"
#include "transcoder/transcodedialog.h"
#include "settings/behavioursettingspage.h"
#include "settings/playlistsettingspage.h"
#include "settings/settingsdialog.h"

#ifdef Q_OS_DARWIN
#include "ui/macsystemtrayicon.h"
#endif

#ifdef Q_OS_DARWIN
// Non exported mac-specific function.
void qt_mac_set_dock_menu(QMenu*);
#endif

const char *MainWindow::kSettingsGroup = "MainWindow";
const char *MainWindow::kAllFilesFilterSpec = QT_TR_NOOP("All Files (*)");

namespace {
const int kTrackSliderUpdateTimeMs = 40;
const int kTrackPositionUpdateTimeMs = 1000;
}

MainWindow::MainWindow(Application *app, SystemTrayIcon *tray_icon, OSD *osd, const CommandlineOptions &options, QWidget *parent) :
      QMainWindow(parent),
      ui_(new Ui_MainWindow),
      thumbbar_(new Windows7ThumbBar(this)),
      app_(app),
      tray_icon_(tray_icon),
      osd_(osd),
      edit_tag_dialog_(std::bind(&MainWindow::CreateEditTagDialog, this)),
      global_shortcuts_(new GlobalShortcuts(this)),
      collection_view_(new CollectionViewContainer(this)),
      status_view_(new StatusView(collection_view_, this)),
      file_view_(new FileView(this)),
      playlist_list_(new PlaylistListContainer(this)),
      device_view_container_(new DeviceViewContainer(this)),
      device_view_(device_view_container_->view()),
      settings_dialog_(std::bind(&MainWindow::CreateSettingsDialog, this)),
      cover_manager_([=]() {
        AlbumCoverManager *cover_manager = new AlbumCoverManager(app, app->collection_backend());
        cover_manager->Init();

        // Cover manager connections
        connect(cover_manager, SIGNAL(AddToPlaylist(QMimeData*)), this, SLOT(AddToPlaylist(QMimeData*)));
        return cover_manager;
      }),

      //organise_dialog_(new OrganiseDialog(app_->task_manager())),
      equalizer_(new Equalizer),
#ifdef HAVE_GSTREAMER
      organise_dialog_([=]() {
        OrganiseDialog *dialog = new OrganiseDialog(app->task_manager());
        dialog->SetDestinationModel(app->collection()->model()->directory_model());
        return dialog;
      }),
#endif
      queue_manager_([=]() {
        QueueManager *manager = new QueueManager;
        manager->SetPlaylistManager(app->playlist_manager());
        return manager;
      }),
      playlist_menu_(new QMenu(this)),
      playlist_add_to_another_(nullptr),
      playlistitem_actions_separator_(nullptr),
      collection_sort_model_(new QSortFilterProxyModel(this)),
      track_position_timer_(new QTimer(this)),
      track_slider_timer_(new QTimer(this)),
      was_maximized_(false),
      saved_playback_position_(0),
      saved_playback_state_(Engine::Empty),
      doubleclick_addmode_(AddBehaviour_Append),
      doubleclick_playmode_(PlayBehaviour_Never),
      menu_playmode_(PlayBehaviour_Never) {

  qLog(Debug) << "Starting";

  connect(app, SIGNAL(ErrorAdded(QString)), SLOT(ShowErrorDialog(QString)));
  connect(app, SIGNAL(SettingsDialogRequested(SettingsDialog::Page)), SLOT(OpenSettingsDialogAtPage(SettingsDialog::Page)));

  // Initialise the UI
  ui_->setupUi(this);
#ifdef Q_OS_DARWIN
  ui_->menu_help->menuAction()->setVisible(false);
#endif

  ui_->multi_loading_indicator->SetTaskManager(app_->task_manager());
  status_view_->SetApplication(app_);
  ui_->now_playing->SetApplication(app_);

  int volume = app_->player()->GetVolume();
  ui_->volume->setValue(volume);
  VolumeChanged(volume);

  // Initialise the global search widget
  StyleHelper::setBaseColor(palette().color(QPalette::Highlight).darker());

  // Add tabs to the fancy tab widget
  ui_->tabs->addTab(status_view_, IconLoader::Load("strawberry"), tr("Status"));
  ui_->tabs->addTab(collection_view_, IconLoader::Load("vinyl"), tr("Collection"));
  ui_->tabs->addTab(file_view_, IconLoader::Load("document-open"), tr("Files"));
  ui_->tabs->addTab(playlist_list_, IconLoader::Load("view-media-playlist"), tr("Playlists"));
  ui_->tabs->addTab(device_view_, IconLoader::Load("device"), tr("Devices"));
  //ui_->tabs->AddSpacer();

  // Add the now playing widget to the fancy tab widget
  ui_->tabs->addBottomWidget(ui_->now_playing);

  //ui_->tabs->SetBackgroundPixmap(QPixmap(":/pictures/strawberry-background.png"));

  track_position_timer_->setInterval(kTrackPositionUpdateTimeMs);
  connect(track_position_timer_, SIGNAL(timeout()), SLOT(UpdateTrackPosition()));
  track_slider_timer_->setInterval(kTrackSliderUpdateTimeMs);
  connect(track_slider_timer_, SIGNAL(timeout()), SLOT(UpdateTrackSliderPosition()));

  // Start initialising the player
  qLog(Debug) << "Initialising player";
  app_->player()->SetAnalyzer(ui_->analyzer);
  app_->player()->SetEqualizer(equalizer_.get());
  app_->player()->Init();

  // Models
  qLog(Debug) << "Creating models";
  collection_sort_model_->setSourceModel(app_->collection()->model());
  collection_sort_model_->setSortRole(CollectionModel::Role_SortText);
  collection_sort_model_->setDynamicSortFilter(true);
  collection_sort_model_->setSortLocaleAware(true);
  collection_sort_model_->sort(0);
  
  qLog(Debug) << "Creating models finished";

  connect(ui_->playlist, SIGNAL(ViewSelectionModelChanged()), SLOT(PlaylistViewSelectionModelChanged()));

  ui_->playlist->SetManager(app_->playlist_manager());

  ui_->playlist->view()->SetApplication(app_);

  collection_view_->view()->setModel(collection_sort_model_);
  collection_view_->view()->SetApplication(app_);
  device_view_->SetApplication(app_);
  playlist_list_->SetApplication(app_);

#ifdef HAVE_GSTREAMER
  organise_dialog_->SetDestinationModel(app_->collection()->model()->directory_model());
#endif

  // Icons
  qLog(Debug) << "Creating UI";
  
  // Help menu
  
  ui_->action_about_strawberry->setIcon(IconLoader::Load("strawberry"));
  ui_->action_about_qt->setIcon(QIcon(":/qt-project.org/qmessagebox/images/qtlogo-64.png"));
  
  // Music menu
  
  ui_->action_open_file->setIcon(IconLoader::Load("document-open"));
  ui_->action_open_cd->setIcon(IconLoader::Load("cd"));
  ui_->action_previous_track->setIcon(IconLoader::Load("media-rewind"));
  ui_->action_play_pause->setIcon(IconLoader::Load("media-play"));
  ui_->action_stop->setIcon(IconLoader::Load("media-stop"));
  ui_->action_stop_after_this_track->setIcon(IconLoader::Load("media-stop"));
  ui_->action_next_track->setIcon(IconLoader::Load("media-forward"));
  ui_->action_quit->setIcon(IconLoader::Load("application-exit"));  
  
  // Playlist
  
  ui_->action_add_file->setIcon(IconLoader::Load("document-open"));
  ui_->action_add_folder->setIcon(IconLoader::Load("document-open-folder"));
  ui_->action_shuffle_mode->setIcon(IconLoader::Load("media-playlist-shuffle"));
  ui_->action_repeat_mode->setIcon(IconLoader::Load("media-playlist-repeat"));
  ui_->action_new_playlist->setIcon(IconLoader::Load("document-new"));
  ui_->action_save_playlist->setIcon(IconLoader::Load("document-save"));
  ui_->action_load_playlist->setIcon(IconLoader::Load("document-open"));
  ui_->action_jump->setIcon(IconLoader::Load("go-jump"));
  ui_->action_clear_playlist->setIcon(IconLoader::Load("edit-clear-list"));
  ui_->action_shuffle->setIcon(IconLoader::Load("media-playlist-shuffle"));
  ui_->action_remove_duplicates->setIcon(IconLoader::Load("list-remove"));
  ui_->action_remove_unavailable->setIcon(IconLoader::Load("list-remove"));
  
  //ui_->action_remove_from_playlist->setIcon(IconLoader::Load("list-remove"));
  
  // Configure
    
  ui_->action_cover_manager->setIcon(IconLoader::Load("document-download"));
  ui_->action_queue_manager->setIcon(IconLoader::Load("footsteps"));
  ui_->action_edit_track->setIcon(IconLoader::Load("edit-rename"));
  ui_->action_equalizer->setIcon(IconLoader::Load("equalizer"));
  ui_->action_update_collection->setIcon(IconLoader::Load("view-refresh"));
  ui_->action_full_collection_scan->setIcon(IconLoader::Load("view-refresh"));
  ui_->action_settings->setIcon(IconLoader::Load("configure"));

  // File view connections
  connect(file_view_, SIGNAL(AddToPlaylist(QMimeData*)), SLOT(AddToPlaylist(QMimeData*)));
  connect(file_view_, SIGNAL(PathChanged(QString)), SLOT(FilePathChanged(QString)));
#ifdef HAVE_GSTREAMER
  connect(file_view_, SIGNAL(CopyToCollection(QList<QUrl>)), SLOT(CopyFilesToCollection(QList<QUrl>)));
  connect(file_view_, SIGNAL(MoveToCollection(QList<QUrl>)), SLOT(MoveFilesToCollection(QList<QUrl>)));
  connect(file_view_, SIGNAL(EditTags(QList<QUrl>)), SLOT(EditFileTags(QList<QUrl>)));
  connect(file_view_, SIGNAL(CopyToDevice(QList<QUrl>)), SLOT(CopyFilesToDevice(QList<QUrl>)));
#endif
  file_view_->SetTaskManager(app_->task_manager());

  // Action connections
  connect(ui_->action_next_track, SIGNAL(triggered()), app_->player(), SLOT(Next()));
  connect(ui_->action_previous_track, SIGNAL(triggered()), app_->player(), SLOT(Previous()));
  connect(ui_->action_play_pause, SIGNAL(triggered()), app_->player(), SLOT(PlayPause()));
  connect(ui_->action_stop, SIGNAL(triggered()), app_->player(), SLOT(Stop()));
  connect(ui_->action_quit, SIGNAL(triggered()), SLOT(Exit()));
  connect(ui_->action_stop_after_this_track, SIGNAL(triggered()), SLOT(StopAfterCurrent()));
  connect(ui_->action_mute, SIGNAL(triggered()), app_->player(), SLOT(Mute()));

  connect(ui_->action_clear_playlist, SIGNAL(triggered()), app_->playlist_manager(), SLOT(ClearCurrent()));
  connect(ui_->action_remove_duplicates, SIGNAL(triggered()), app_->playlist_manager(), SLOT(RemoveDuplicatesCurrent()));
  connect(ui_->action_remove_unavailable, SIGNAL(triggered()), app_->playlist_manager(), SLOT(RemoveUnavailableCurrent()));
  connect(ui_->action_remove_from_playlist, SIGNAL(triggered()), SLOT(PlaylistRemoveCurrent()));
  connect(ui_->action_edit_track, SIGNAL(triggered()), SLOT(EditTracks()));
  connect(ui_->action_renumber_tracks, SIGNAL(triggered()), SLOT(RenumberTracks()));
  connect(ui_->action_selection_set_value, SIGNAL(triggered()), SLOT(SelectionSetValue()));
  connect(ui_->action_edit_value, SIGNAL(triggered()), SLOT(EditValue()));
#ifdef HAVE_GSTREAMER
  connect(ui_->action_auto_complete_tags, SIGNAL(triggered()), SLOT(AutoCompleteTags()));
#endif
  connect(ui_->action_settings, SIGNAL(triggered()), SLOT(OpenSettingsDialog()));
  connect(ui_->action_about_strawberry, SIGNAL(triggered()), SLOT(ShowAboutDialog()));
  connect(ui_->action_about_qt, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
  connect(ui_->action_shuffle, SIGNAL(triggered()), app_->playlist_manager(), SLOT(ShuffleCurrent()));
  connect(ui_->action_open_file, SIGNAL(triggered()), SLOT(AddFile()));
  connect(ui_->action_open_cd, SIGNAL(triggered()), SLOT(AddCDTracks()));
  connect(ui_->action_add_file, SIGNAL(triggered()), SLOT(AddFile()));
  connect(ui_->action_add_folder, SIGNAL(triggered()), SLOT(AddFolder()));
  connect(ui_->action_cover_manager, SIGNAL(triggered()), SLOT(ShowCoverManager()));
  connect(ui_->action_equalizer, SIGNAL(triggered()), equalizer_.get(), SLOT(show()));
  connect(ui_->action_jump, SIGNAL(triggered()), ui_->playlist->view(), SLOT(JumpToCurrentlyPlayingTrack()));
  connect(ui_->action_update_collection, SIGNAL(triggered()), app_->collection(), SLOT(IncrementalScan()));
  connect(ui_->action_full_collection_scan, SIGNAL(triggered()), app_->collection(), SLOT(FullScan()));
  connect(ui_->action_queue_manager, SIGNAL(triggered()), SLOT(ShowQueueManager()));
  //connect(ui_->action_add_files_to_transcoder, SIGNAL(triggered()), SLOT(AddFilesToTranscoder()));

  // Playlist view actions
  ui_->action_next_playlist->setShortcuts(QList<QKeySequence>() << QKeySequence::fromString("Ctrl+Tab")<< QKeySequence::fromString("Ctrl+PgDown"));
  ui_->action_previous_playlist->setShortcuts(QList<QKeySequence>() << QKeySequence::fromString("Ctrl+Shift+Tab")<< QKeySequence::fromString("Ctrl+PgUp"));

  // Actions for switching tabs will be global to the entire window, so adding them here
  addAction(ui_->action_next_playlist);
  addAction(ui_->action_previous_playlist);

  // Give actions to buttons
  ui_->forward_button->setDefaultAction(ui_->action_next_track);
  ui_->back_button->setDefaultAction(ui_->action_previous_track);
  ui_->pause_play_button->setDefaultAction(ui_->action_play_pause);
  ui_->stop_button->setDefaultAction(ui_->action_stop);

  ui_->playlist->SetActions(ui_->action_new_playlist, ui_->action_load_playlist, ui_->action_save_playlist, ui_->action_clear_playlist, ui_->action_next_playlist,    /* These two actions aren't associated */ ui_->action_previous_playlist /* to a button but to the main window */ );

  // Add the shuffle and repeat action groups to the menu
  ui_->action_shuffle_mode->setMenu(ui_->playlist_sequence->shuffle_menu());
  ui_->action_repeat_mode->setMenu(ui_->playlist_sequence->repeat_menu());

  // Stop actions
  QMenu *stop_menu = new QMenu(this);
  stop_menu->addAction(ui_->action_stop);
  stop_menu->addAction(ui_->action_stop_after_this_track);
  ui_->stop_button->setMenu(stop_menu);

  // Player connections
  connect(ui_->volume, SIGNAL(valueChanged(int)), app_->player(), SLOT(SetVolume(int)));

  connect(app_->player(), SIGNAL(Error(QString)), SLOT(ShowErrorDialog(QString)));
  connect(app_->player(), SIGNAL(SongChangeRequestProcessed(QUrl,bool)), app_->playlist_manager(), SLOT(SongChangeRequestProcessed(QUrl,bool)));

  connect(app_->player(), SIGNAL(Paused()), SLOT(MediaPaused()));
  connect(app_->player(), SIGNAL(Playing()), SLOT(MediaPlaying()));
  connect(app_->player(), SIGNAL(Stopped()), SLOT(MediaStopped()));
  connect(app_->player(), SIGNAL(Seeked(qlonglong)), SLOT(Seeked(qlonglong)));
  connect(app_->player(), SIGNAL(TrackSkipped(PlaylistItemPtr)), SLOT(TrackSkipped(PlaylistItemPtr)));
  connect(this, SIGNAL(IntroPointReached()), app_->player(), SLOT(IntroPointReached()));
  connect(app_->player(), SIGNAL(VolumeChanged(int)), SLOT(VolumeChanged(int)));

  connect(app_->player(), SIGNAL(Paused()), ui_->playlist, SLOT(ActivePaused()));
  connect(app_->player(), SIGNAL(Playing()), ui_->playlist, SLOT(ActivePlaying()));
  connect(app_->player(), SIGNAL(Stopped()), ui_->playlist, SLOT(ActiveStopped()));

  connect(app_->player(), SIGNAL(Paused()), osd_, SLOT(Paused()));
  connect(app_->player(), SIGNAL(Stopped()), osd_, SLOT(Stopped()));
  connect(app_->player(), SIGNAL(PlaylistFinished()), osd_, SLOT(PlaylistFinished()));
  connect(app_->player(), SIGNAL(VolumeChanged(int)), osd_, SLOT(VolumeChanged(int)));
  connect(app_->player(), SIGNAL(VolumeChanged(int)), ui_->volume, SLOT(setValue(int)));
  connect(app_->player(), SIGNAL(ForceShowOSD(Song, bool)), SLOT(ForceShowOSD(Song, bool)));
  connect(app_->playlist_manager(), SIGNAL(CurrentSongChanged(Song)), SLOT(SongChanged(Song)));
  connect(app_->playlist_manager(), SIGNAL(CurrentSongChanged(Song)), app_->player(), SLOT(CurrentMetadataChanged(Song)));
  connect(app_->playlist_manager(), SIGNAL(EditingFinished(QModelIndex)), SLOT(PlaylistEditFinished(QModelIndex)));
  connect(app_->playlist_manager(), SIGNAL(Error(QString)), SLOT(ShowErrorDialog(QString)));
  connect(app_->playlist_manager(), SIGNAL(SummaryTextChanged(QString)), ui_->playlist_summary, SLOT(setText(QString)));
  connect(app_->playlist_manager(), SIGNAL(PlayRequested(QModelIndex)), SLOT(PlayIndex(QModelIndex)));

  connect(ui_->playlist->view(), SIGNAL(doubleClicked(QModelIndex)), SLOT(PlaylistDoubleClick(QModelIndex)));
  //connect(ui_->playlist->view(), SIGNAL(doubleClicked(QModelIndex)), SLOT(PlayIndex(QModelIndex)));
  connect(ui_->playlist->view(), SIGNAL(PlayItem(QModelIndex)), SLOT(PlayIndex(QModelIndex)));
  connect(ui_->playlist->view(), SIGNAL(PlayPause()), app_->player(), SLOT(PlayPause()));
  connect(ui_->playlist->view(), SIGNAL(RightClicked(QPoint,QModelIndex)), SLOT(PlaylistRightClick(QPoint,QModelIndex)));
  //connect(ui_->playlist->view(), SIGNAL(SeekTrack(int)), ui_->track_slider, SLOT(Seek(int)));
  connect(ui_->playlist->view(), SIGNAL(SeekForward()), app_->player(), SLOT(SeekForward()));
  connect(ui_->playlist->view(), SIGNAL(SeekBackward()), app_->player(), SLOT(SeekBackward()));
  connect(ui_->playlist->view(), SIGNAL(BackgroundPropertyChanged()), SLOT(RefreshStyleSheet()));

  connect(ui_->track_slider, SIGNAL(ValueChangedSeconds(int)), app_->player(), SLOT(SeekTo(int)));

  // Collection connections
  connect(collection_view_->view(), SIGNAL(AddToPlaylistSignal(QMimeData*)), SLOT(AddToPlaylist(QMimeData*)));
  connect(collection_view_->view(), SIGNAL(ShowConfigDialog()), SLOT(ShowCollectionConfig()));
  connect(app_->collection_model(), SIGNAL(TotalSongCountUpdated(int)), collection_view_->view(), SLOT(TotalSongCountUpdated(int)));
  connect(app_->collection_model(), SIGNAL(TotalArtistCountUpdated(int)), collection_view_->view(), SLOT(TotalArtistCountUpdated(int)));
  connect(app_->collection_model(), SIGNAL(TotalAlbumCountUpdated(int)), collection_view_->view(), SLOT(TotalAlbumCountUpdated(int)));
  connect(app_->collection_model(), SIGNAL(modelAboutToBeReset()), collection_view_->view(), SLOT(SaveFocus()));
  connect(app_->collection_model(), SIGNAL(modelReset()), collection_view_->view(), SLOT(RestoreFocus()));

  connect(app_->task_manager(), SIGNAL(PauseCollectionWatchers()), app_->collection(), SLOT(PauseWatcher()));
  connect(app_->task_manager(), SIGNAL(ResumeCollectionWatchers()), app_->collection(), SLOT(ResumeWatcher()));

  // Devices connections
  connect(device_view_, SIGNAL(AddToPlaylistSignal(QMimeData*)), SLOT(AddToPlaylist(QMimeData*)));

  // Collection filter widget
  QActionGroup *collection_view_group = new QActionGroup(this);

  collection_show_all_ = collection_view_group->addAction(tr("Show all songs"));
  collection_show_duplicates_ = collection_view_group->addAction(tr("Show only duplicates"));
  collection_show_untagged_ = collection_view_group->addAction(tr("Show only untagged"));

  collection_show_all_->setCheckable(true);
  collection_show_duplicates_->setCheckable(true);
  collection_show_untagged_->setCheckable(true);
  collection_show_all_->setChecked(true);

  connect(collection_view_group, SIGNAL(triggered(QAction*)), SLOT(ChangeCollectionQueryMode(QAction*)));

  QAction *collection_config_action = new QAction(IconLoader::Load("configure"), tr("Configure collection..."), this);
  connect(collection_config_action, SIGNAL(triggered()), SLOT(ShowCollectionConfig()));
  collection_view_->filter()->SetSettingsGroup(kSettingsGroup);
  collection_view_->filter()->SetCollectionModel(app_->collection()->model());

  QAction *separator = new QAction(this);
  separator->setSeparator(true);

  collection_view_->filter()->AddMenuAction(collection_show_all_);
  collection_view_->filter()->AddMenuAction(collection_show_duplicates_);
  collection_view_->filter()->AddMenuAction(collection_show_untagged_);
  collection_view_->filter()->AddMenuAction(separator);
  collection_view_->filter()->AddMenuAction(collection_config_action);

  // Playlist menu
  playlist_play_pause_ = playlist_menu_->addAction(tr("Play"), this, SLOT(PlaylistPlay()));
  playlist_menu_->addAction(ui_->action_stop);
  playlist_stop_after_ = playlist_menu_->addAction(IconLoader::Load("media-stop"), tr("Stop after this track"), this, SLOT(PlaylistStopAfter()));
  playlist_queue_ = playlist_menu_->addAction(IconLoader::Load("go-next"), tr("Toggle queue status"), this, SLOT(PlaylistQueue()));
  playlist_queue_->setVisible(false);
  playlist_queue_->setShortcut(QKeySequence("Ctrl+D"));
  ui_->playlist->addAction(playlist_queue_);
  playlist_skip_ = playlist_menu_->addAction(IconLoader::Load("media-forward"), tr("Toggle skip status"), this, SLOT(PlaylistSkip()));
  playlist_skip_->setVisible(false);
  ui_->playlist->addAction(playlist_skip_);

  playlist_menu_->addSeparator();
  playlist_menu_->addAction(ui_->action_remove_from_playlist);
  playlist_undoredo_ = playlist_menu_->addSeparator();
  playlist_menu_->addAction(ui_->action_edit_track);
  playlist_menu_->addAction(ui_->action_edit_value);
  playlist_menu_->addAction(ui_->action_renumber_tracks);
  playlist_menu_->addAction(ui_->action_selection_set_value);
  playlist_menu_->addAction(ui_->action_auto_complete_tags);
  //playlist_menu_->addAction(ui_->action_add_files_to_transcoder);
  playlist_menu_->addSeparator();
#ifdef HAVE_GSTREAMER
  playlist_copy_to_collection_ = playlist_menu_->addAction(IconLoader::Load("edit-copy"), tr("Copy to collection..."), this, SLOT(PlaylistCopyToCollection()));
  playlist_move_to_collection_ = playlist_menu_->addAction(IconLoader::Load("go-jump"), tr("Move to collection..."), this, SLOT(PlaylistMoveToCollection()));
  //playlist_organise_ = playlist_menu_->addAction(IconLoader::Load("edit-copy"), tr("Organise files..."), this, SLOT(PlaylistMoveToCollection()));
  playlist_copy_to_device_ = playlist_menu_->addAction(IconLoader::Load("device"), tr("Copy to device..."), this, SLOT(PlaylistCopyToDevice()));
#endif
  //playlist_delete_ = playlist_menu_->addAction(IconLoader::Load("edit-delete"), tr("Delete from disk..."), this, SLOT(PlaylistDelete()));
  playlist_open_in_browser_ = playlist_menu_->addAction(IconLoader::Load("document-open-folder"), tr("Show in file browser..."), this, SLOT(PlaylistOpenInBrowser()));
  playlist_open_in_browser_->setVisible(false);
  playlist_show_in_collection_ = playlist_menu_->addAction(IconLoader::Load("edit-find"), tr("Show in collection..."), this, SLOT(ShowInCollection()));
  playlist_menu_->addSeparator();
  playlistitem_actions_separator_ = playlist_menu_->addSeparator();
  playlist_menu_->addAction(ui_->action_clear_playlist);
  playlist_menu_->addAction(ui_->action_shuffle);
  playlist_menu_->addAction(ui_->action_remove_duplicates);
  playlist_menu_->addAction(ui_->action_remove_unavailable);

#ifdef Q_OS_DARWIN
  ui_->action_shuffle->setShortcut(QKeySequence());
#endif

  // We have to add the actions on the playlist menu to this QWidget otherwise their shortcut keys don't work
  addActions(playlist_menu_->actions());

  connect(ui_->playlist, SIGNAL(UndoRedoActionsChanged(QAction*, QAction*)), SLOT(PlaylistUndoRedoChanged(QAction*, QAction*)));

#ifdef HAVE_GSTREAMER
  playlist_copy_to_device_->setDisabled(app_->device_manager()->connected_devices_model()->rowCount() == 0);
  connect(app_->device_manager()->connected_devices_model(), SIGNAL(IsEmptyChanged(bool)), playlist_copy_to_device_, SLOT(setDisabled(bool)));
#endif

#ifdef Q_OS_DARWIN
  mac::SetApplicationHandler(this);
#endif
  // Tray icon
  tray_icon_->SetupMenu(ui_->action_previous_track, ui_->action_play_pause, ui_->action_stop, ui_->action_stop_after_this_track, ui_->action_next_track, ui_->action_mute, ui_->action_quit);

  connect(tray_icon_, SIGNAL(PlayPause()), app_->player(), SLOT(PlayPause()));
  connect(tray_icon_, SIGNAL(SeekForward()), app_->player(), SLOT(SeekForward()));
  connect(tray_icon_, SIGNAL(SeekBackward()), app_->player(), SLOT(SeekBackward()));
  connect(tray_icon_, SIGNAL(NextTrack()), app_->player(), SLOT(Next()));
  connect(tray_icon_, SIGNAL(PreviousTrack()), app_->player(), SLOT(Previous()));
  connect(tray_icon_, SIGNAL(ShowHide()), SLOT(ToggleShowHide()));
  connect(tray_icon_, SIGNAL(ChangeVolume(int)), SLOT(VolumeWheelEvent(int)));

  // Windows 7 thumbbar buttons
  thumbbar_->SetActions(QList<QAction*>() << ui_->action_previous_track << ui_->action_play_pause << ui_->action_stop << ui_->action_next_track << nullptr); // spacer

#if (defined(Q_OS_DARWIN) && defined(HAVE_SPARKLE))
  // Add check for updates item to application menu.
  QAction *check_updates = ui_->menu_tools->addAction(tr("Check for updates..."));
  check_updates->setMenuRole(QAction::ApplicationSpecificRole);
  connect(check_updates, SIGNAL(triggered(bool)), SLOT(CheckForUpdates()));
#endif

  // Global shortcuts
  connect(global_shortcuts_, SIGNAL(Play()), app_->player(), SLOT(Play()));
  connect(global_shortcuts_, SIGNAL(Pause()), app_->player(), SLOT(Pause()));
  connect(global_shortcuts_, SIGNAL(PlayPause()), ui_->action_play_pause, SLOT(trigger()));
  connect(global_shortcuts_, SIGNAL(Stop()), ui_->action_stop, SLOT(trigger()));
  connect(global_shortcuts_, SIGNAL(StopAfter()), ui_->action_stop_after_this_track, SLOT(trigger()));
  connect(global_shortcuts_, SIGNAL(Next()), ui_->action_next_track, SLOT(trigger()));
  connect(global_shortcuts_, SIGNAL(Previous()), ui_->action_previous_track, SLOT(trigger()));
  connect(global_shortcuts_, SIGNAL(IncVolume()), app_->player(), SLOT(VolumeUp()));
  connect(global_shortcuts_, SIGNAL(DecVolume()), app_->player(), SLOT(VolumeDown()));
  connect(global_shortcuts_, SIGNAL(Mute()), app_->player(), SLOT(Mute()));
  connect(global_shortcuts_, SIGNAL(SeekForward()), app_->player(), SLOT(SeekForward()));
  connect(global_shortcuts_, SIGNAL(SeekBackward()), app_->player(), SLOT(SeekBackward()));
  connect(global_shortcuts_, SIGNAL(ShowHide()), SLOT(ToggleShowHide()));
  connect(global_shortcuts_, SIGNAL(ShowOSD()), app_->player(), SLOT(ShowOSD()));
  connect(global_shortcuts_, SIGNAL(TogglePrettyOSD()), app_->player(), SLOT(TogglePrettyOSD()));

  // Fancy tabs
  connect(ui_->tabs, SIGNAL(ModeChanged(FancyTabWidget::Mode)), SLOT(SaveGeometry()));
  connect(ui_->tabs, SIGNAL(CurrentChanged(int)), SLOT(TabSwitched()));
  connect(ui_->tabs, SIGNAL(CurrentChanged(int)), SLOT(SaveGeometry()));

  // Status
  ConnectStatusView(status_view_);

  // Analyzer
  //ui_->analyzer->SetEngine(app_->player()->engine());

  connect(ui_->analyzer, SIGNAL(WheelEvent(int)), SLOT(VolumeWheelEvent(int)));

#if 0
  // Equalizer
  qLog(Debug) << "Creating equalizer";
  connect(equalizer_.get(), SIGNAL(ParametersChanged(int,QList<int>)), app_->player()->engine(), SLOT(SetEqualizerParameters(int,QList<int>)));
  connect(equalizer_.get(), SIGNAL(EnabledChanged(bool)), app_->player()->engine(), SLOT(SetEqualizerEnabled(bool)));
  connect(equalizer_.get(), SIGNAL(StereoBalanceChanged(float)), app_->player()->engine(), SLOT(SetStereoBalance(float)));

  app_->player()->engine()->SetEqualizerEnabled(equalizer_->is_enabled());
  app_->player()->engine()->SetEqualizerParameters(equalizer_->preamp_value(), equalizer_->gain_values());
  app_->player()->engine()->SetStereoBalance(equalizer_->stereo_balance());
#endif

  // Statusbar widgets
  ui_->playlist_summary->setMinimumWidth(QFontMetrics(font()).width("WW selected of WW tracks - [ WW:WW ]"));
  ui_->status_bar_stack->setCurrentWidget(ui_->playlist_summary_page);
  connect(ui_->multi_loading_indicator, SIGNAL(TaskCountChange(int)), SLOT(TaskCountChanged(int)));

  ui_->track_slider->SetApplication(app);

  // Now playing widget
  qLog(Debug) << "Creating now playing widget";
  ui_->now_playing->set_ideal_height(ui_->status_bar->sizeHint().height() + ui_->player_controls->sizeHint().height());
  connect(app_->player(), SIGNAL(Stopped()), ui_->now_playing, SLOT(Stopped()));
  //connect(ui_->now_playing, SIGNAL(ShowAboveStatusBarChanged(bool)), SLOT(PlayingWidgetPositionChanged(bool)));
  connect(ui_->action_console, SIGNAL(triggered()), SLOT(ShowConsole()));
  PlayingWidgetPositionChanged();

  // Load theme
  // This is tricky: we need to save the default/system palette now,
  // before loading user preferred theme (which will overide it), to be able to restore it later
  const_cast<QPalette&>(Appearance::kDefaultPalette) = QApplication::palette();
  app_->appearance()->LoadUserTheme();
  StyleSheetLoader *css_loader = new StyleSheetLoader(this);
  css_loader->SetStyleSheet(this, ":style/mainwindow.css");
  RefreshStyleSheet();

  // Load playlists
  app_->playlist_manager()->Init(app_->collection_backend(), app_->playlist_backend(), ui_->playlist_sequence, ui_->playlist);

  // This connection must be done after the playlists have been initialized.
  connect(this, SIGNAL(StopAfterToggled(bool)), osd_, SLOT(StopAfterToggle(bool)));

  // We need to connect these global shortcuts here after the playlist have been initialized
  connect(global_shortcuts_, SIGNAL(CycleShuffleMode()), app_->playlist_manager()->sequence(), SLOT(CycleShuffleMode()));
  connect(global_shortcuts_, SIGNAL(CycleRepeatMode()), app_->playlist_manager()->sequence(), SLOT(CycleRepeatMode()));
  connect(app_->playlist_manager()->sequence(), SIGNAL(RepeatModeChanged(PlaylistSequence::RepeatMode)), osd_, SLOT(RepeatModeChanged(PlaylistSequence::RepeatMode)));
  connect(app_->playlist_manager()->sequence(), SIGNAL(ShuffleModeChanged(PlaylistSequence::ShuffleMode)), osd_, SLOT(ShuffleModeChanged(PlaylistSequence::ShuffleMode)));

  // Load settings
  qLog(Debug) << "Loading settings";
  settings_.beginGroup(kSettingsGroup);

  // Set last used geometry to position window on the correct monitor
  // Set window state only if the window was last maximized
  was_maximized_ = settings_.value("maximized", false).toBool();
  restoreGeometry(settings_.value("geometry").toByteArray());
  if (was_maximized_) {
    setWindowState(windowState() | Qt::WindowMaximized);
  }

  if (!ui_->splitter->restoreState(settings_.value("splitter_state").toByteArray())) {
    ui_->splitter->setSizes(QList<int>() << 300 << width() - 300);
  }
  ui_->tabs->setCurrentIndex(settings_.value("current_tab", 1 /* Collection tab */ ).toInt());
  FancyTabWidget::Mode default_mode = FancyTabWidget::Mode_LargeSidebar;
  ui_->tabs->SetMode(FancyTabWidget::Mode(settings_.value("tab_mode", default_mode).toInt()));
  file_view_->SetPath(settings_.value("file_path", QDir::homePath()).toString());

  TabSwitched();

  // Users often collapse one side of the splitter by mistake and don't know how to restore it. This must be set after the state is restored above.
  ui_->splitter->setChildrenCollapsible(false);

  ReloadSettings();

  // Reload pretty OSD to avoid issues with fonts
  osd_->ReloadPrettyOSDSettings();

  // Reload playlist settings, for BG and glowing
  ui_->playlist->view()->ReloadSettings();


#ifndef Q_OS_DARWIN
  QSettings settings;
  settings.beginGroup(BehaviourSettingsPage::kSettingsGroup);
  StartupBehaviour behaviour = StartupBehaviour(settings.value("startupbehaviour", Startup_Remember).toInt());
  settings.endGroup();
  bool hidden = settings_.value("hidden", false).toBool();


  switch (behaviour) {
    case Startup_AlwaysHide: hide(); break;
    case Startup_AlwaysShow: show(); break;
    case Startup_Remember:
                             setVisible(!hidden);
                             break;
  }
  
  // Force the window to show in case somehow the config has tray and window set to hide
  if (hidden && !tray_icon_->IsVisible()) {
    settings_.setValue("hidden", false);
    show();
  }
#else  // Q_OS_DARWIN
  // Always show mainwindow on startup on OS X.
  show();
#endif

  QShortcut *close_window_shortcut = new QShortcut(this);
  close_window_shortcut->setKey(Qt::CTRL + Qt::Key_W);
  connect(close_window_shortcut, SIGNAL(activated()), SLOT(SetHiddenInTray()));

  CheckFullRescanRevisions();

  CommandlineOptionsReceived(options);

  if (!options.contains_play_options()) LoadPlaybackStatus();

  qLog(Debug) << "Started";
  RefreshStyleSheet();

}

MainWindow::~MainWindow() {
  SaveGeometry();
  delete ui_;
}

void MainWindow::ReloadSettings() {

  QSettings settings;

#ifndef Q_OS_DARWIN

  settings.beginGroup(BehaviourSettingsPage::kSettingsGroup);
  bool showtrayicon = settings.value("showtrayicon", true).toBool();
  settings.endGroup();

  //qLog(Debug) << "showtrayicon" << showtrayicon;

  tray_icon_->SetVisible(showtrayicon);
  if (!showtrayicon && !isVisible()) show();
#endif

  settings.beginGroup(PlaylistSettingsPage::kSettingsGroup);
  doubleclick_addmode_ = AddBehaviour(settings.value("doubleclick_addmode", AddBehaviour_Append).toInt());
  doubleclick_playmode_ = PlayBehaviour(settings.value("doubleclick_playmode", PlayBehaviour_IfStopped).toInt());
  doubleclick_playlist_addmode_ = PlaylistAddBehaviour(settings.value("doubleclick_playlist_addmode", PlaylistAddBehaviour_Play).toInt());
  menu_playmode_ = PlayBehaviour(settings.value("menu_playmode", PlayBehaviour_IfStopped).toInt());
  settings.endGroup();
}

void MainWindow::ReloadAllSettings() {

  ReloadSettings();

  // Other settings
  app_->ReloadSettings();
  app_->collection()->ReloadSettings();
  app_->player()->ReloadSettings();
  osd_->ReloadSettings();
  collection_view_->ReloadSettings();
  app_->player()->engine()->ReloadSettings();
  ui_->playlist->view()->ReloadSettings();

}

void MainWindow::RefreshStyleSheet() {
  setStyleSheet(styleSheet());
}
void MainWindow::MediaStopped() {
  
  setWindowTitle("Strawberry Music Player");

  ui_->action_stop->setEnabled(false);
  ui_->action_stop_after_this_track->setEnabled(false);
  ui_->action_play_pause->setIcon(IconLoader::Load("media-play"));
  ui_->action_play_pause->setText(tr("Play"));

  ui_->action_play_pause->setEnabled(true);

  track_position_timer_->stop();
  track_slider_timer_->stop();
  ui_->track_slider->SetStopped();
  tray_icon_->SetProgress(0);
  tray_icon_->SetStopped();

}

void MainWindow::MediaPaused() {
  
  ui_->action_stop->setEnabled(true);
  ui_->action_stop_after_this_track->setEnabled(true);
  ui_->action_play_pause->setIcon(IconLoader::Load("media-play"));
  ui_->action_play_pause->setText(tr("Play"));

  ui_->action_play_pause->setEnabled(true);

  track_position_timer_->stop();
  track_slider_timer_->stop();

  tray_icon_->SetPaused();

}

void MainWindow::MediaPlaying() {
  
  ui_->action_stop->setEnabled(true);
  ui_->action_stop_after_this_track->setEnabled(true);
  ui_->action_play_pause->setIcon(IconLoader::Load("media-pause"));
  ui_->action_play_pause->setText(tr("Pause"));

  bool enable_play_pause = !(app_->player()->GetCurrentItem()->options() & PlaylistItem::PauseDisabled);
  ui_->action_play_pause->setEnabled(enable_play_pause);

  bool can_seek = !(app_->player()->GetCurrentItem()->options() & PlaylistItem::SeekDisabled);
  ui_->track_slider->SetCanSeek(can_seek);

  tray_icon_->SetPlaying(enable_play_pause);

  track_position_timer_->start();
  track_slider_timer_->start();
  UpdateTrackPosition();

}

void MainWindow::VolumeChanged(int volume) {
  ui_->action_mute->setChecked(!volume);
  tray_icon_->MuteButtonStateChanged(!volume);
}

void MainWindow::SongChanged(const Song &song) {

  //setWindowTitle(song.PrettyTitleWithArtist() + " --- Strawberry Music Player");
  setWindowTitle(song.PrettyTitleWithArtist());
  tray_icon_->SetProgress(0);

}

void MainWindow::TrackSkipped(PlaylistItemPtr item) {
  // If it was a collection item then we have to increment its skipped count in the database.

  if (item && item->IsLocalCollectionItem() && item->Metadata().id() != -1) {

    Song song = item->Metadata();
    const qint64 position = app_->player()->engine()->position_nanosec();
    const qint64 length = app_->player()->engine()->length_nanosec();
    const float percentage = (length == 0 ? 1 : float(position) / length);

    const qint64 seconds_left = (length - position) / kNsecPerSec;
    const qint64 seconds_total = length / kNsecPerSec;

    if (((0.05 * seconds_total > 60 && percentage < 0.98) || percentage < 0.95) && seconds_left > 5) {  // Never count the skip if under 5 seconds left
      app_->collection_backend()->IncrementSkipCountAsync(song.id(), percentage);
    }
  }
}

void MainWindow::resizeEvent(QResizeEvent*) { SaveGeometry(); }

void MainWindow::TabSwitched() {
  
  if (ui_->tabs->currentIndex() > 0)
    ui_->now_playing->SetEnabled();
  else
    ui_->now_playing->SetDisabled();

  SaveGeometry();

}

void MainWindow::SaveGeometry() {

  was_maximized_ = isMaximized();
  settings_.setValue("maximized", was_maximized_);
  // Save the geometry only when mainwindow is not in maximized state
  if (!was_maximized_) {
    settings_.setValue("geometry", saveGeometry());
  }
  settings_.setValue("splitter_state", ui_->splitter->saveState());
  settings_.setValue("current_tab", ui_->tabs->currentIndex());
  settings_.setValue("tab_mode", ui_->tabs->mode());

}

void MainWindow::SavePlaybackStatus() {
  
  QSettings settings;

  settings.beginGroup("Player");
  settings.setValue("playback_state", app_->player()->GetState());
  if (app_->player()->GetState() == Engine::Playing || app_->player()->GetState() == Engine::Paused) {
    settings.setValue("playback_position", app_->player()->engine()->position_nanosec() / kNsecPerSec);
  }
  else {
    settings.setValue("playback_position", 0);
  }
  
  settings.endGroup();
  
}

void MainWindow::LoadPlaybackStatus() {
  
  QSettings settings;

  settings.beginGroup(BehaviourSettingsPage::kSettingsGroup);
  bool resume_playback = settings.value("resumeplayback", false).toBool();
  settings.endGroup();

  if (!resume_playback) return;

  settings.beginGroup("Player");
  saved_playback_state_ = static_cast<Engine::State> (settings.value("playback_state", Engine::Empty).toInt());
  saved_playback_position_ = settings.value("playback_position", 0).toDouble();
  settings.endGroup();
  
  if (saved_playback_state_ == Engine::Empty || saved_playback_state_ == Engine::Idle) {
    return;
  }

  connect(app_->playlist_manager()->active(), SIGNAL(RestoreFinished()), SLOT(ResumePlayback()));

}

void MainWindow::ResumePlayback() {

  qLog(Debug) << "Resuming playback";

  disconnect(app_->playlist_manager()->active(), SIGNAL(RestoreFinished()), this, SLOT(ResumePlayback()));

  if (saved_playback_state_ == Engine::Paused) {
    NewClosure(app_->player(), SIGNAL(Playing()), app_->player(), SLOT(PlayPause()));
  }

  app_->player()->Play();
  app_->player()->SeekTo(saved_playback_position_);

}

void MainWindow::PlayIndex(const QModelIndex &index) {
  
  if (!index.isValid()) return;

  int row = index.row();
  if (index.model() == app_->playlist_manager()->current()->proxy()) {
    // The index was in the proxy model (might've been filtered), so we need to get the actual row in the source model.
    row = app_->playlist_manager()->current()->proxy()->mapToSource(index).row();
  }

  app_->playlist_manager()->SetActiveToCurrent();
  app_->player()->PlayAt(row, Engine::Manual, true);
}

void MainWindow::PlaylistDoubleClick(const QModelIndex &index) {
  if (!index.isValid()) return;

  int row = index.row();
  if (index.model() == app_->playlist_manager()->current()->proxy()) {
    // The index was in the proxy model (might've been filtered), so we need to get the actual row in the source model.
    row = app_->playlist_manager()->current()->proxy()->mapToSource(index).row();
  }

  QModelIndexList dummyIndexList;

  switch (doubleclick_playlist_addmode_) {
    case PlaylistAddBehaviour_Play:
      app_->playlist_manager()->SetActiveToCurrent();
      app_->player()->PlayAt(row, Engine::Manual, true);
      break;

    case PlaylistAddBehaviour_Enqueue:
      dummyIndexList.append(index);
      app_->playlist_manager()->current()->queue()->ToggleTracks(dummyIndexList);
      if (app_->player()->GetState() != Engine::Playing) {
        app_->player()->PlayAt(app_->playlist_manager()->current()->queue()->TakeNext(), Engine::Manual, true);
      }
      break;
  }
}

void MainWindow::VolumeWheelEvent(int delta) {
  ui_->volume->setValue(ui_->volume->value() + delta / 30);
}

void MainWindow::ToggleShowHide() {
  
  if (settings_.value("hidden").toBool()) {
    show();
    SetHiddenInTray(false);
  }
  else if (isActiveWindow()) {
    hide();
    setWindowState((windowState() & ~Qt::WindowMinimized) | Qt::WindowActive);
    SetHiddenInTray(true);
  }
  else if (isMinimized()) {
    hide();
    setWindowState((windowState() & ~Qt::WindowMinimized) | Qt::WindowActive);
    SetHiddenInTray(false);
  }
  else if (!isVisible()) {
    show();
    activateWindow();
  }
  else {
    // Window is not hidden but does not have focus; bring it to front.
    activateWindow();
    raise();
  }
}

void MainWindow::StopAfterCurrent() {
  app_->playlist_manager()->current()->StopAfter(app_->playlist_manager()->current()->current_row());
  emit StopAfterToggled(app_->playlist_manager()->active()->stop_after_current());
}

void MainWindow::closeEvent(QCloseEvent *event) {

  QSettings settings;
  settings.beginGroup(BehaviourSettingsPage::kSettingsGroup);
  bool keep_running = settings.value("keeprunning", false).toBool();
  settings.endGroup();

  if (keep_running && event->spontaneous()) {
    event->ignore();
    SetHiddenInTray(true);
  }
  else {
    Exit();
    QApplication::quit();
  }
}

void MainWindow::SetHiddenInTray(bool hidden) {

  settings_.setValue("hidden", hidden);

  // Some window managers don't remember maximized state between calls to hide() and show(), so we have to remember it ourself.
  if (hidden) {
    //was_maximized_ = isMaximized();
    hide();
  }
  else {
    if (was_maximized_) showMaximized();
    else show();
  }
}

void MainWindow::FilePathChanged(const QString &path) {
  settings_.setValue("file_path", path);
}

void MainWindow::Seeked(qlonglong microseconds) {

  const int position = microseconds / kUsecPerSec;
  const int length = app_->player()->GetCurrentItem()->Metadata().length_nanosec() / kNsecPerSec;
  tray_icon_->SetProgress(double(position) / length * 100);

}

void MainWindow::UpdateTrackPosition() {
  
  // Track position in seconds
  //Playlist *playlist = app_->playlist_manager()->active();

  PlaylistItemPtr item(app_->player()->GetCurrentItem());
  const int position = std::floor(float(app_->player()->engine()->position_nanosec()) / kNsecPerSec + 0.5);
  const int length = item->Metadata().length_nanosec() / kNsecPerSec;

  if (length <= 0) {
    // Probably a stream that we don't know the length of
    //ui_->track_slider->SetStopped();
    //tray_icon_->SetProgress(0);
    return;
  }

  // Update the tray icon every 10 seconds
  if (position % 10 == 0) {
    tray_icon_->SetProgress(double(position) / length * 100);
  }
}

void MainWindow::UpdateTrackSliderPosition() {
  PlaylistItemPtr item(app_->player()->GetCurrentItem());

  const int slider_position = std::floor(float(app_->player()->engine()->position_nanosec()) / kNsecPerMsec);
  const int slider_length =app_->player()->engine()->length_nanosec() / kNsecPerMsec;

  // Update the slider
  ui_->track_slider->SetValue(slider_position, slider_length);
}

void MainWindow::ApplyAddBehaviour(MainWindow::AddBehaviour b, MimeData *data) const {

  switch (b) {
    case AddBehaviour_Append:
      data->clear_first_ = false;
      data->enqueue_now_ = false;
      break;

    case AddBehaviour_Enqueue:
      data->clear_first_ = false;
      data->enqueue_now_ = true;
      break;

    case AddBehaviour_Load:
      data->clear_first_ = true;
      data->enqueue_now_ = false;
      break;

    case AddBehaviour_OpenInNew:
      data->open_in_new_playlist_ = true;
      break;
  }
}

void MainWindow::ApplyPlayBehaviour(MainWindow::PlayBehaviour b, MimeData *data) const {

  switch (b) {
    case PlayBehaviour_Always:
      data->play_now_ = true;
      break;

    case PlayBehaviour_Never:
      data->play_now_ = false;
      break;

    case PlayBehaviour_IfStopped:
      data->play_now_ = !(app_->player()->GetState() == Engine::Playing);
      break;
  }
}

void MainWindow::AddToPlaylist(QMimeData *data) {

  if (!data) return;

  if (MimeData *mime_data = qobject_cast<MimeData*>(data)) {
    // Should we replace the flags with the user's preference?
    if (mime_data->override_user_settings_) {
      // Do nothing
    }
    else if (mime_data->from_doubleclick_) {
      ApplyAddBehaviour(doubleclick_addmode_, mime_data);
      ApplyPlayBehaviour(doubleclick_playmode_, mime_data);
    }
    else {
      ApplyPlayBehaviour(menu_playmode_, mime_data);
    }

    // Should we create a new playlist for the songs?
    if (mime_data->open_in_new_playlist_) {
      app_->playlist_manager()->New(mime_data->get_name_for_new_playlist());
    }
  }
  app_->playlist_manager()->current()->dropMimeData(data, Qt::CopyAction, -1, 0, QModelIndex());
  delete data;
}

void MainWindow::AddToPlaylist(QAction *action) {
  
  int destination = action->data().toInt();
  PlaylistItemList items;

  // get the selected playlist items
  for (const QModelIndex &index : ui_->playlist->view()->selectionModel()->selection().indexes()) {
    if (index.column() != 0) continue;
    int row = app_->playlist_manager()->current()->proxy()->mapToSource(index).row();
    items << app_->playlist_manager()->current()->item_at(row);
  }

  SongList songs;
  for (PlaylistItemPtr item : items) {
    songs << item->Metadata();
  }

  // we're creating a new playlist
  if (destination == -1) {
    // save the current playlist to reactivate it
    int current_id = app_->playlist_manager()->current_id();
    // get the name from selection
    app_->playlist_manager()->New(app_->playlist_manager()->GetNameForNewPlaylist(songs));
    if (app_->playlist_manager()->current()->id() != current_id) {
      //I'm sure the new playlist was created and is selected, so I can just insert items
      app_->playlist_manager()->current()->InsertItems(items);
      // set back the current playlist
      app_->playlist_manager()->SetCurrentPlaylist(current_id);
    }
  }
  else {
    // we're inserting in a existing playlist
    app_->playlist_manager()->playlist(destination)->InsertItems(items);
  }

}

void MainWindow::PlaylistRightClick(const QPoint &global_pos, const QModelIndex &index) {

  QModelIndex source_index = app_->playlist_manager()->current()->proxy()->mapToSource(index);

  playlist_menu_index_ = source_index;

  // Is this song currently playing?
  if (app_->playlist_manager()->current()->current_row() == source_index.row() && app_->player()->GetState() == Engine::Playing) {
    playlist_play_pause_->setText(tr("Pause"));
    playlist_play_pause_->setIcon(IconLoader::Load("media-pause"));
  }
  else {
    playlist_play_pause_->setText(tr("Play"));
    playlist_play_pause_->setIcon(IconLoader::Load("media-play"));
  }

  // Are we allowed to pause?
  if (index.isValid()) {
    playlist_play_pause_->setEnabled(app_->playlist_manager()->current()->current_row() != source_index.row() || !(app_->playlist_manager()->current()->item_at(source_index.row())->options() & PlaylistItem::PauseDisabled));
  }
  else {
    playlist_play_pause_->setEnabled(false);
  }

  playlist_stop_after_->setEnabled(index.isValid());

  // Are any of the selected songs editable or queued?
  QModelIndexList selection = ui_->playlist->view()->selectionModel()->selection().indexes();
  bool cue_selected = false;
  int all = 0;
  int selected = 0;
  int editable = 0;
  int in_queue = 0;
  int not_in_queue = 0;
  int in_skipped = 0;
  int not_in_skipped = 0;
  
  for (const QModelIndex &index : selection) {
      
    all++;

    if (index.column() != 0) continue;
    
    selected++;
    
    PlaylistItemPtr item = app_->playlist_manager()->current()->item_at(index.row());
    
    if (item->Metadata().has_cue()) {
      cue_selected = true;
    }
    else if (item->Metadata().IsEditable()) {
      editable++;
    }

    if (index.data(Playlist::Role_QueuePosition).toInt() == -1) not_in_queue++;
    else in_queue++;

    if (item->GetShouldSkip()) in_skipped++;
    else not_in_skipped++;
  }

  // this is available when we have one or many files and at least one of those is not CUE related
  ui_->action_edit_track->setEnabled(editable);
  ui_->action_edit_track->setVisible(editable);
  ui_->action_auto_complete_tags->setEnabled(editable);
  ui_->action_auto_complete_tags->setVisible(editable);
  // the rest of the read / write actions work only when there are no CUEs involved
  if (cue_selected) editable = 0;

  if (selected > 0) playlist_open_in_browser_->setVisible(true);

  bool track_column = (index.column() == Playlist::Column_Track);
  ui_->action_renumber_tracks->setVisible(editable >= 2 && track_column);
  ui_->action_selection_set_value->setVisible(editable >= 2 && !track_column);
  ui_->action_edit_value->setVisible(editable);
  ui_->action_remove_from_playlist->setEnabled(!selection.isEmpty());

  playlist_show_in_collection_->setVisible(false);
#ifdef HAVE_GSTREAMER
  playlist_copy_to_collection_->setVisible(false);
  playlist_move_to_collection_->setVisible(false);
  //playlist_organise_->setVisible(false);
  playlist_copy_to_device_->setVisible(false);
#endif
  playlist_open_in_browser_->setVisible(false);

  //qLog(Debug) << "selected" << selected;
  //qLog(Debug) << "in_queue" << in_queue << "not_in_queue" << not_in_queue;
  //qLog(Debug) << "in_skipped" << in_skipped << "not_in_skipped" << not_in_skipped;
  
  if (selected < 1) {
    playlist_queue_->setVisible(false);
    playlist_skip_->setVisible(false);
  }
  else {
    playlist_queue_->setVisible(true);
    playlist_skip_->setVisible(true);
    if (in_queue == 1 && not_in_queue == 0) playlist_queue_->setText(tr("Dequeue track"));
    else if (in_queue > 1 && not_in_queue == 0) playlist_queue_->setText(tr("Dequeue selected tracks"));
    else if (in_queue == 0 && not_in_queue == 1) playlist_queue_->setText(tr("Queue track"));
    else if (in_queue == 0 && not_in_queue > 1) playlist_queue_->setText(tr("Queue selected tracks"));
    else playlist_queue_->setText(tr("Toggle queue status"));

    if (in_skipped == 1 && not_in_skipped == 0) playlist_skip_->setText(tr("Unskip track"));
    else if (in_skipped > 1 && not_in_skipped == 0) playlist_skip_->setText(tr("Unskip selected tracks"));
    else if (in_skipped == 0 && not_in_skipped == 1) playlist_skip_->setText(tr("Skip track"));
    else if (in_skipped == 0 && not_in_skipped > 1) playlist_skip_->setText(tr("Skip selected tracks"));
    else playlist_skip_->setText(tr("Toggle skip status"));
  }

  if (not_in_queue == 0) playlist_queue_->setIcon(IconLoader::Load("go-previous"));
  else playlist_queue_->setIcon(IconLoader::Load("go-next"));

  if (in_skipped < selected) playlist_skip_->setIcon(IconLoader::Load("media-forward"));
  else playlist_skip_->setIcon(IconLoader::Load("media-play"));


  if (!index.isValid()) {
    ui_->action_selection_set_value->setVisible(false);
    ui_->action_edit_value->setVisible(false);
  }
  else {
      
      
    Playlist::Column column = (Playlist::Column)index.column();
    bool column_is_editable = Playlist::column_is_editable(column) && editable;

    ui_->action_selection_set_value->setVisible(ui_->action_selection_set_value->isVisible() && column_is_editable);
    ui_->action_edit_value->setVisible(ui_->action_edit_value->isVisible() && column_is_editable);

    QString column_name = Playlist::column_name(column);
    QString column_value =app_->playlist_manager()->current()->data(source_index).toString();
    if (column_value.length() > 25) column_value = column_value.left(25) + "...";

    ui_->action_selection_set_value->setText(tr("Set %1 to \"%2\"...").arg(column_name.toLower()).arg(column_value));
    ui_->action_edit_value->setText(tr("Edit tag \"%1\"...").arg(column_name));

    // Is it a collection item?
    PlaylistItemPtr item = app_->playlist_manager()->current()->item_at(source_index.row());
    if (item->IsLocalCollectionItem() && item->Metadata().id() != -1) {
      //playlist_organise_->setVisible(editable);
      playlist_show_in_collection_->setVisible(editable);
      playlist_open_in_browser_->setVisible(true);
    }
#ifdef HAVE_GSTREAMER
    else {
      playlist_copy_to_collection_->setVisible(editable);
      playlist_move_to_collection_->setVisible(editable);
    }
#endif

#ifdef HAVE_GSTREAMER
    playlist_copy_to_device_->setVisible(editable);
#endif

    // Remove old item actions, if any.
    for (QAction *action : playlistitem_actions_) {
      playlist_menu_->removeAction(action);
    }

    // Get the new item actions, and add them
    playlistitem_actions_ = item->actions();
    playlistitem_actions_separator_->setVisible(!playlistitem_actions_.isEmpty());
    playlist_menu_->insertActions(playlistitem_actions_separator_,playlistitem_actions_);
  }

  //if it isn't the first time we right click, we need to remove the menu previously created
  if (playlist_add_to_another_ != nullptr) {
    playlist_menu_->removeAction(playlist_add_to_another_);
    delete playlist_add_to_another_;
  }

  // create the playlist submenu
  QMenu *add_to_another_menu = new QMenu(tr("Add to another playlist"), this);
  add_to_another_menu->setIcon(IconLoader::Load("list-add"));

  for (const PlaylistBackend::Playlist &playlist : app_->playlist_backend()->GetAllOpenPlaylists()) {
    // don't add the current playlist
    if (playlist.id != app_->playlist_manager()->current()->id()) {
      QAction *existing_playlist = new QAction(this);
      existing_playlist->setText(playlist.name);
      existing_playlist->setData(playlist.id);
      add_to_another_menu->addAction(existing_playlist);
    }
  }

  add_to_another_menu->addSeparator();
  // add to a new playlist
  QAction *new_playlist = new QAction(this);
  new_playlist->setText(tr("New playlist"));
  new_playlist->setData(-1);  // fake id
  add_to_another_menu->addAction(new_playlist);
  playlist_add_to_another_ = playlist_menu_->insertMenu(ui_->action_remove_from_playlist, add_to_another_menu);

  connect(add_to_another_menu, SIGNAL(triggered(QAction*)), SLOT(AddToPlaylist(QAction*)));

  playlist_menu_->popup(global_pos);
}

void MainWindow::PlaylistPlay() {
  if (app_->playlist_manager()->current()->current_row() ==playlist_menu_index_.row()) {
    app_->player()->PlayPause();
  }
  else {
    PlayIndex(playlist_menu_index_);
  }
}

void MainWindow::PlaylistStopAfter() {
  app_->playlist_manager()->current()->StopAfter(playlist_menu_index_.row());
}

void MainWindow::EditTracks() {
  SongList songs;
  PlaylistItemList items;

  for (const QModelIndex &index : ui_->playlist->view()->selectionModel()->selection().indexes()) {
    if (index.column() != 0) continue;
    int row =app_->playlist_manager()->current()->proxy()->mapToSource(index).row();
    PlaylistItemPtr item(app_->playlist_manager()->current()->item_at(row));
    Song song = item->Metadata();

    if (song.IsEditable()) {
      songs << song;
      items << item;
    }
  }

  //EnsureEditTagDialogCreated();
  edit_tag_dialog_->SetSongs(songs, items);
  edit_tag_dialog_->show();
}

void MainWindow::EditTagDialogAccepted() {
  for (PlaylistItemPtr item : edit_tag_dialog_->playlist_items()) {
    item->Reload();
  }

  // This is really lame but we don't know what rows have changed
  ui_->playlist->view()->update();

  app_->playlist_manager()->current()->Save();
}

void MainWindow::RenumberTracks() {
  QModelIndexList indexes =ui_->playlist->view()->selectionModel()->selection().indexes();
  int track = 1;

  // Get the index list in order
  qStableSort(indexes);

  // if first selected song has a track number set, start from that offset
  if (!indexes.isEmpty()) {
    const Song first_song = app_->playlist_manager()->current()->item_at(indexes[0].row())->Metadata();

    if (first_song.track() > 0) track = first_song.track();
  }

  for (const QModelIndex &index : indexes) {
    if (index.column() != 0) continue;

    const QModelIndex source_index =app_->playlist_manager()->current()->proxy()->mapToSource(index);
    int row = source_index.row();
    Song song = app_->playlist_manager()->current()->item_at(row)->Metadata();

    if (song.IsEditable()) {
      song.set_track(track);

      TagReaderReply *reply =TagReaderClient::Instance()->SaveFile(song.url().toLocalFile(), song);

      NewClosure(reply, SIGNAL(Finished(bool)), this, SLOT(SongSaveComplete(TagReaderReply*, QPersistentModelIndex)),reply, QPersistentModelIndex(source_index));
    }
    track++;
  }
}

void MainWindow::SongSaveComplete(TagReaderReply *reply,const QPersistentModelIndex &index) {
  if (reply->is_successful() && index.isValid()) {
    app_->playlist_manager()->current()->ReloadItems(QList<int>()<< index.row());
  }
  reply->deleteLater();
}

void MainWindow::SelectionSetValue() {
  Playlist::Column column = (Playlist::Column)playlist_menu_index_.column();
  QVariant column_value =app_->playlist_manager()->current()->data(playlist_menu_index_);

  QModelIndexList indexes =ui_->playlist->view()->selectionModel()->selection().indexes();

  for (const QModelIndex &index : indexes) {
    if (index.column() != 0) continue;

    const QModelIndex source_index =app_->playlist_manager()->current()->proxy()->mapToSource(index);
    int row = source_index.row();
    Song song = app_->playlist_manager()->current()->item_at(row)->Metadata();

    if (Playlist::set_column_value(song, column, column_value)) {
      TagReaderReply *reply =TagReaderClient::Instance()->SaveFile(song.url().toLocalFile(), song);

      NewClosure(reply, SIGNAL(Finished(bool)), this, SLOT(SongSaveComplete(TagReaderReply*, QPersistentModelIndex)),reply, QPersistentModelIndex(source_index));
    }
  }
}

void MainWindow::EditValue() {
  QModelIndex current = ui_->playlist->view()->currentIndex();

  if (!current.isValid()) return;

  // Edit the last column that was right-clicked on.  If nothing's ever been right clicked then look for the first editable column.
  int column = playlist_menu_index_.column();
  if (column == -1) {
    for (int i = 0; i < ui_->playlist->view()->model()->columnCount(); ++i) {
      if (ui_->playlist->view()->isColumnHidden(i)) continue;
      if (!Playlist::column_is_editable(Playlist::Column(i))) continue;
      column = i;
      break;
    }
  }

  ui_->playlist->view()->edit(current.sibling(current.row(), column));
}

void MainWindow::AddFile() {
    
  // Last used directory
  QString directory =settings_.value("add_media_path", QDir::currentPath()).toString();

  PlaylistParser parser(app_->collection_backend());

  // Show dialog
  QStringList file_names = QFileDialog::getOpenFileNames(this, tr("Add file"), directory, QString("%1 (%2);;%3;;%4").arg(tr("Music"), FileView::kFileFilter, parser.filters(), tr(kAllFilesFilterSpec)));

  if (file_names.isEmpty()) return;

  // Save last used directory
  settings_.setValue("add_media_path", file_names[0]);

  // Convert to URLs
  QList<QUrl> urls;
  for (const QString &path : file_names) {
    urls << QUrl::fromLocalFile(QFileInfo(path).canonicalFilePath());
  }

  MimeData *data = new MimeData;
  data->setUrls(urls);
  AddToPlaylist(data);
}

void MainWindow::AddFolder() {
  // Last used directory
  QString directory =settings_.value("add_folder_path", QDir::currentPath()).toString();

  // Show dialog
  directory =QFileDialog::getExistingDirectory(this, tr("Add folder"), directory);
  if (directory.isEmpty()) return;

  // Save last used directory
  settings_.setValue("add_folder_path", directory);

  // Add media
  MimeData *data = new MimeData;
  data->setUrls(QList<QUrl>() << QUrl::fromLocalFile(QFileInfo(directory).canonicalFilePath()));
  AddToPlaylist(data);
}

void MainWindow::AddCDTracks() {
  MimeData *data = new MimeData;
  // We are putting empty data, but we specify cdda mimetype to indicate that we want to load audio cd tracks
  data->open_in_new_playlist_ = true;
  data->setData(Playlist::kCddaMimeType, QByteArray());
  AddToPlaylist(data);
}

void MainWindow::ShowInCollection() {

  // Show the first valid selected track artist/album in CollectionView
  QModelIndexList proxy_indexes =ui_->playlist->view()->selectionModel()->selectedRows();
  SongList songs;

  for (const QModelIndex &proxy_index : proxy_indexes) {
    QModelIndex index =app_->playlist_manager()->current()->proxy()->mapToSource(proxy_index);
    if (app_->playlist_manager()->current()->item_at(index.row())->IsLocalCollectionItem()) {
      songs << app_->playlist_manager()->current()->item_at(index.row())->Metadata();
      break;
    }
  }
  QString search;
  if (!songs.isEmpty()) {
    search ="artist:" + songs.first().artist() + " album:" + songs.first().album();
  }
  collection_view_->filter()->ShowInCollection(search);
}

void MainWindow::PlaylistRemoveCurrent() {
  ui_->playlist->view()->RemoveSelected(false);
}

void MainWindow::PlaylistEditFinished(const QModelIndex &index) {
  if (index == playlist_menu_index_) SelectionSetValue();
}

void MainWindow::CommandlineOptionsReceived(const QString &string_options) {

  CommandlineOptions options;
  options.Load(string_options.toLatin1());

  if (options.is_empty()) {
    show();
    activateWindow();
  }
  else
    CommandlineOptionsReceived(options);
}

void MainWindow::CommandlineOptionsReceived(const CommandlineOptions &options) {
  switch (options.player_action()) {
    case CommandlineOptions::Player_Play:
      if (options.urls().empty()) {
        app_->player()->Play();
      }
      break;
    case CommandlineOptions::Player_PlayPause:
      app_->player()->PlayPause();
      break;
    case CommandlineOptions::Player_Pause:
      app_->player()->Pause();
      break;
    case CommandlineOptions::Player_Stop:
      app_->player()->Stop();
      break;
    case CommandlineOptions::Player_StopAfterCurrent:
      app_->player()->StopAfterCurrent();
      break;
    case CommandlineOptions::Player_Previous:
      app_->player()->Previous();
      break;
    case CommandlineOptions::Player_Next:
      app_->player()->Next();
      break;
    case CommandlineOptions::Player_RestartOrPrevious:
      app_->player()->RestartOrPrevious();
      break;

    case CommandlineOptions::Player_None:
      break;
  }

  if (!options.urls().empty()) {
    MimeData *data = new MimeData;
    data->setUrls(options.urls());
    // Behaviour depends on command line options, so set it here
    data->override_user_settings_ = true;

    if (options.player_action() == CommandlineOptions::Player_Play) data->play_now_ = true;
    else ApplyPlayBehaviour(doubleclick_playmode_, data);

    switch (options.url_list_action()) {
      case CommandlineOptions::UrlList_Load:
        data->clear_first_ = true;
        break;
      case CommandlineOptions::UrlList_Append:
        // Nothing to do
        break;
      case CommandlineOptions::UrlList_None:
        ApplyAddBehaviour(doubleclick_addmode_, data);
        break;
      case CommandlineOptions::UrlList_CreateNew:
        data->name_for_new_playlist_ = options.playlist_name();
        ApplyAddBehaviour(AddBehaviour_OpenInNew, data);
        break;
    }

    AddToPlaylist(data);
  }

  if (options.set_volume() != -1) app_->player()->SetVolume(options.set_volume());

  if (options.volume_modifier() != 0) {
    app_->player()->SetVolume(app_->player()->GetVolume() +options.volume_modifier());
  }

  if (options.seek_to() != -1) {
    app_->player()->SeekTo(options.seek_to());
  }
  else if (options.seek_by() != 0) {
    app_->player()->SeekTo(app_->player()->engine()->position_nanosec() /kNsecPerSec +options.seek_by());
  }

  if (options.play_track_at() != -1) app_->player()->PlayAt(options.play_track_at(), Engine::Manual, true);

  if (options.show_osd()) app_->player()->ShowOSD();

  if (options.toggle_pretty_osd()) app_->player()->TogglePrettyOSD();
}

void MainWindow::ForceShowOSD(const Song &song, const bool toggle) {
  if (toggle) {
    osd_->SetPrettyOSDToggleMode(toggle);
  }
  osd_->ReshowCurrentSong();
}

void MainWindow::Activate() {
  show();
}

bool MainWindow::LoadUrl(const QString &url) {

  if (!QFile::exists(url)) return false;

  MimeData *data = new MimeData;
  data->setUrls(QList<QUrl>() << QUrl::fromLocalFile(url));
  AddToPlaylist(data);

  return true;
}

void MainWindow::CheckForUpdates() {
#if defined(Q_OS_DARWIN)
  mac::CheckForUpdates();
#endif
}

void MainWindow::PlaylistUndoRedoChanged(QAction *undo, QAction *redo) {

  playlist_menu_->insertAction(playlist_undoredo_, undo);
  playlist_menu_->insertAction(playlist_undoredo_, redo);
}

#ifdef HAVE_GSTREAMER
void MainWindow::AddFilesToTranscoder() {

  QStringList filenames;

  for (const QModelIndex &index : ui_->playlist->view()->selectionModel()->selection().indexes()) {
    if (index.column() != 0) continue;
    int row =app_->playlist_manager()->current()->proxy()->mapToSource(index).row();
    PlaylistItemPtr item(app_->playlist_manager()->current()->item_at(row));
    Song song = item->Metadata();
    filenames << song.url().toLocalFile();
  }

  transcode_dialog_->SetFilenames(filenames);

  ShowTranscodeDialog();
}
#endif

void MainWindow::ShowCollectionConfig() {
  //EnsureSettingsDialogCreated();
  settings_dialog_->OpenAtPage(SettingsDialog::Page_Collection);
}

void MainWindow::TaskCountChanged(int count) {
  if (count == 0) {
    ui_->status_bar_stack->setCurrentWidget(ui_->playlist_summary_page);
  }
  else {
    ui_->status_bar_stack->setCurrentWidget(ui_->multi_loading_indicator);
  }
}

void MainWindow::PlayingWidgetPositionChanged() {

  ui_->status_bar->setParent(ui_->centralWidget);
  //ui_->status_bar->setParent(ui_->player_controls_container);

  ui_->status_bar->parentWidget()->layout()->addWidget(ui_->status_bar);
  ui_->status_bar->show();
}

#ifdef HAVE_GSTREAMER
void MainWindow::CopyFilesToCollection(const QList<QUrl> &urls) {
  organise_dialog_->SetDestinationModel(app_->collection_model()->directory_model());
  organise_dialog_->SetUrls(urls);
  organise_dialog_->SetCopy(true);
  organise_dialog_->show();
}

void MainWindow::MoveFilesToCollection(const QList<QUrl> &urls) {
  organise_dialog_->SetDestinationModel(app_->collection_model()->directory_model());
  organise_dialog_->SetUrls(urls);
  organise_dialog_->SetCopy(false);
  organise_dialog_->show();
}

void MainWindow::CopyFilesToDevice(const QList<QUrl> &urls) {
  organise_dialog_->SetDestinationModel(app_->device_manager()->connected_devices_model(), true);
  organise_dialog_->SetCopy(true);
  if (organise_dialog_->SetUrls(urls))
    organise_dialog_->show();
  else {
    QMessageBox::warning(this, tr("Error"), tr("None of the selected songs were suitable for copying to a device"));
  }
}
#endif

void MainWindow::EditFileTags(const QList<QUrl> &urls) {
  //EnsureEditTagDialogCreated();

  SongList songs;
  for (const QUrl &url : urls) {
    Song song;
    song.set_url(url);
    song.set_valid(true);
    song.set_filetype(Song::Type_Mpeg);
    songs << song;
  }

  edit_tag_dialog_->SetSongs(songs);
  edit_tag_dialog_->show();
}

#ifdef HAVE_GSTREAMER
void MainWindow::PlaylistCopyToCollection() {
  PlaylistOrganiseSelected(true);
}

void MainWindow::PlaylistMoveToCollection() {
  PlaylistOrganiseSelected(false);
}

void MainWindow::PlaylistOrganiseSelected(bool copy) {

  QModelIndexList proxy_indexes = ui_->playlist->view()->selectionModel()->selectedRows();
  SongList songs;

  for (const QModelIndex &proxy_index : proxy_indexes) {
    QModelIndex index =app_->playlist_manager()->current()->proxy()->mapToSource(proxy_index);
    songs << app_->playlist_manager()->current()->item_at(index.row())->Metadata();
  }

  organise_dialog_->SetDestinationModel(app_->collection_model()->directory_model());
  organise_dialog_->SetSongs(songs);
  organise_dialog_->SetCopy(copy);
  organise_dialog_->show();
}
#endif

#if 0
void MainWindow::PlaylistDelete() {

  // Note: copied from CollectionView::Delete

  if (QMessageBox::warning(this, tr("Delete files"),
        tr("These files will be deleted from disk, are you sure you want to continue?"),
        QMessageBox::Yes, QMessageBox::Cancel) != QMessageBox::Yes)
    return;

  std::shared_ptr<MusicStorage> storage(new FilesystemMusicStorage("/"));

  // Get selected songs
  SongList selected_songs;
  QModelIndexList proxy_indexes = ui_->playlist->view()->selectionModel()->selectedRows();
  for (const QModelIndex &proxy_index : proxy_indexes) {
    QModelIndex index = app_->playlist_manager()->current()->proxy()->mapToSource(proxy_index);
    selected_songs << app_->playlist_manager()->current()->item_at(index.row())->Metadata();
  }

  if (app_->player()->GetState() == Engine::Playing) {
    if (app_->playlist_manager()->current()->rowCount() == selected_songs.length()) {
      app_->player()->Stop();
    }
    else {
      for (Song x : selected_songs) {
        if (x == app_->player()->GetCurrentItem()->Metadata()) {
          app_->player()->Next();
        }
      }
    }
  }

  ui_->playlist->view()->RemoveSelected(true);

  DeleteFiles *delete_files = new DeleteFiles(app_->task_manager(), storage);
  connect(delete_files, SIGNAL(Finished(SongList)), SLOT(DeleteFinished(SongList)));
  delete_files->Start(selected_songs);
}
#endif

void MainWindow::PlaylistOpenInBrowser() {

  QList<QUrl> urls;
  QModelIndexList proxy_indexes = ui_->playlist->view()->selectionModel()->selectedRows();

  for (const QModelIndex &proxy_index : proxy_indexes) {
    const QModelIndex index = app_->playlist_manager()->current()->proxy()->mapToSource(proxy_index);
    urls << QUrl(index.sibling(index.row(), Playlist::Column_Filename).data().toString());
  }

  Utilities::OpenInFileBrowser(urls);
}

#if 0
void MainWindow::DeleteFinished(const SongList &songs_with_errors) {
  if (songs_with_errors.isEmpty()) return;

  OrganiseErrorDialog *dialog = new OrganiseErrorDialog(this);
  dialog->Show(OrganiseErrorDialog::Type_Delete, songs_with_errors);
  // It deletes itself when the user closes it
}
#endif

void MainWindow::PlaylistQueue() {

  QModelIndexList indexes;
  for (const QModelIndex &proxy_index : ui_->playlist->view()->selectionModel()->selectedRows()) {
    indexes << app_->playlist_manager()->current()->proxy()->mapToSource(proxy_index);
  }

  app_->playlist_manager()->current()->queue()->ToggleTracks(indexes);
}

void MainWindow::PlaylistSkip() {

  QModelIndexList indexes;

  for (const QModelIndex &proxy_index : ui_->playlist->view()->selectionModel()->selectedRows()) {
    indexes << app_->playlist_manager()->current()->proxy()->mapToSource(proxy_index);
  }

  app_->playlist_manager()->current()->SkipTracks(indexes);

}

#ifdef HAVE_GSTREAMER
void MainWindow::PlaylistCopyToDevice() {

  QModelIndexList proxy_indexes = ui_->playlist->view()->selectionModel()->selectedRows();
  SongList songs;

  for (const QModelIndex &proxy_index : proxy_indexes) {
    QModelIndex index = app_->playlist_manager()->current()->proxy()->mapToSource(proxy_index);

    songs << app_->playlist_manager()->current()->item_at(index.row())->Metadata();
  }

  organise_dialog_->SetDestinationModel(app_->device_manager()->connected_devices_model(), true);
  organise_dialog_->SetCopy(true);
  if (organise_dialog_->SetSongs(songs))
    organise_dialog_->show();
  else {
    QMessageBox::warning(this, tr("Error"),
        tr("None of the selected songs were suitable for copying to a device"));
  }
}
#endif

void MainWindow::ChangeCollectionQueryMode(QAction *action) {
  if (action == collection_show_duplicates_) {
    collection_view_->filter()->SetQueryMode(QueryOptions::QueryMode_Duplicates);
  }
  else if (action == collection_show_untagged_) {
    collection_view_->filter()->SetQueryMode(QueryOptions::QueryMode_Untagged);
  }
  else {
    collection_view_->filter()->SetQueryMode(QueryOptions::QueryMode_All);
  }
}

void MainWindow::ShowCoverManager() {

  //if (!cover_manager_) {
    //cover_manager_.reset(new AlbumCoverManager(app_, app_->collection_backend()));
    //cover_manager_->Init();

    // Cover manager connections
    //connect(cover_manager_.get(), SIGNAL(AddToPlaylist(QMimeData*)), SLOT(AddToPlaylist(QMimeData*)));
  //}

  cover_manager_->show();

}

SettingsDialog *MainWindow::CreateSettingsDialog() {

  SettingsDialog *settings_dialog = new SettingsDialog(app_);
  settings_dialog->SetGlobalShortcutManager(global_shortcuts_);
  //settings_dialog->SetSongInfoView(song_info_view_);

  // Settings
  connect(settings_dialog, SIGNAL(accepted()), SLOT(ReloadAllSettings()));

  // Allows custom notification preview
  connect(settings_dialog, SIGNAL(NotificationPreview(OSD::Behaviour, QString, QString)), SLOT(HandleNotificationPreview(OSD::Behaviour, QString, QString)));
  return settings_dialog;

}

void MainWindow::EnsureSettingsDialogCreated() {
  
  //if (settings_dialog_) return;

  //settings_dialog_.reset(new SettingsDialog(app_));
  //settings_dialog_->SetGlobalShortcutManager(global_shortcuts_);
  //settings_dialog_->SetSongInfoView(song_info_view_);

  // Settings
  //connect(settings_dialog_.get(), SIGNAL(accepted()), SLOT(ReloadAllSettings()));

  // Allows custom notification preview
  //connect(settings_dialog_.get(), SIGNAL(NotificationPreview(OSD::Behaviour,QString,QString)), SLOT(HandleNotificationPreview(OSD::Behaviour, QString, QString)));
  
}

void MainWindow::OpenSettingsDialog() {

  EnsureSettingsDialogCreated();
  settings_dialog_->show();
  
}

void MainWindow::OpenSettingsDialogAtPage(SettingsDialog::Page page) {
  EnsureSettingsDialogCreated();
  settings_dialog_->OpenAtPage(page);
}

EditTagDialog *MainWindow::CreateEditTagDialog() {

  EditTagDialog *edit_tag_dialog = new EditTagDialog(app_);
  connect(edit_tag_dialog, SIGNAL(accepted()), SLOT(EditTagDialogAccepted()));
  connect(edit_tag_dialog, SIGNAL(Error(QString)), SLOT(ShowErrorDialog(QString)));
  return edit_tag_dialog;

}

void MainWindow::EnsureEditTagDialogCreated() {

  //if (edit_tag_dialog_) return;

  //edit_tag_dialog_.reset(new EditTagDialog(app_));
  //connect(edit_tag_dialog_.get(), SIGNAL(accepted()), SLOT(EditTagDialogAccepted()));
  //connect(edit_tag_dialog_.get(), SIGNAL(Error(QString)), SLOT(ShowErrorDialog(QString)));

}

void MainWindow::ShowAboutDialog() {

  //if (!about_dialog_) {
  //about_dialog_.reset(new About);
  //}

  about_dialog_->show();

}

#ifdef HAVE_GSTREAMER
void MainWindow::ShowTranscodeDialog() {

  //if (!transcode_dialog_) {
  //  transcode_dialog_.reset(new TranscodeDialog);
  //}
  transcode_dialog_->show();

}
#endif

void MainWindow::ShowErrorDialog(const QString &message) {
  //if (!error_dialog_) {
  //  error_dialog_.reset(new ErrorDialog);
  //}
  error_dialog_->ShowMessage(message);
}

void MainWindow::CheckFullRescanRevisions() {
  
  int from = app_->database()->startup_schema_version();
  int to = app_->database()->current_schema_version();

  // if we're restoring DB from scratch or nothing has changed, do nothing
  if (from == 0 || from == to) {
    return;
  }

  // Collect all reasons
  QSet<QString> reasons;
  for (int i = from; i <= to; i++) {
    QString reason = app_->collection()->full_rescan_reason(i);

    if (!reason.isEmpty()) {
      reasons.insert(reason);
    }
  }

  // if we have any...
  if (!reasons.isEmpty()) {
    QString message = tr("The version of Strawberry you've just updated to requires a full collection rescan because of the new features listed below:") + "<ul>";
    for(const QString &reason : reasons) {
      message += ("<li>" + reason + "</li>");
    }
    message += "</ul>" + tr("Would you like to run a full rescan right now?");

    if(QMessageBox::question(this, tr("Collection rescan notice"), message, QMessageBox::Yes, QMessageBox::No) == QMessageBox::Yes) {
      app_->collection()->FullScan();
    }
  }
}

void MainWindow::ShowQueueManager() {
  //if (!queue_manager_) {
  //queue_manager_.reset(new QueueManager);
  //queue_manager_->SetPlaylistManager(app_->playlist_manager());
  //}
  queue_manager_->show();
}

#if 0
void MainWindow::ConnectInfoView(SongInfoBase *view) {
  
  QObject::connect(app_->playlist_manager(), SIGNAL(CurrentSongChanged(Song)), view, SLOT(SongChanged(Song)));
  QObject::connect(app_->player(), SIGNAL(PlaylistFinished()), view, SLOT(SongFinished()));
  QObject::connect(app_->player(), SIGNAL(Stopped()), view, SLOT(SongFinished()));

  QObject::connect(view, SIGNAL(ShowSettingsDialog()), SLOT(ShowSongInfoConfig()));
  
}
#endif

void MainWindow::ConnectStatusView(StatusView *statusview) {
  
  QObject::connect(app_->playlist_manager(), SIGNAL(CurrentSongChanged(Song)), statusview, SLOT(SongChanged(Song)));
  QObject::connect(app_->player(), SIGNAL(PlaylistFinished()), statusview, SLOT(SongFinished()));
  QObject::connect(app_->player(), SIGNAL(Stopped()), statusview, SLOT(SongFinished()));

  //QObject::connect(statusview, SIGNAL(ShowSettingsDialog()), SLOT(ShowSongInfoConfig()));
  
}

#if 0
void MainWindow::ShowSongInfoConfig() {
  OpenSettingsDialogAtPage(SettingsDialog::Page_SongInformation);
}
#endif

void MainWindow::PlaylistViewSelectionModelChanged() {
    
  connect(ui_->playlist->view()->selectionModel(),SIGNAL(currentChanged(QModelIndex, QModelIndex)), SLOT(PlaylistCurrentChanged(QModelIndex)));
}

void MainWindow::PlaylistCurrentChanged(const QModelIndex &proxy_current) {
  const QModelIndex source_current =app_->playlist_manager()->current()->proxy()->mapToSource(proxy_current);

  // If the user moves the current index using the keyboard and then presses
  // F2, we don't want that editing the last column that was right clicked on.
  if (source_current != playlist_menu_index_) playlist_menu_index_ = QModelIndex();
}

void MainWindow::Raise() {
  show();
  activateWindow();
}

#ifdef Q_OS_WIN32
bool MainWindow::winEvent(MSG *msg, long*) {
  thumbbar_->HandleWinEvent(msg);
  return false;
}
#endif  // Q_OS_WIN32

void MainWindow::Exit() {

  SavePlaybackStatus();
  //settings_.setValue("show_sidebar", ui_->action_toggle_show_sidebar->isChecked());

  if (app_->player()->engine()->is_fadeout_enabled()) {
    // To shut down the application when fadeout will be finished
    connect(app_->player()->engine(), SIGNAL(FadeoutFinishedSignal()), qApp, SLOT(quit()));
    if (app_->player()->GetState() == Engine::Playing) {
      app_->player()->Stop();
      hide();
      tray_icon_->SetVisible(false);
      return; // Don't quit the application now: wait for the fadeout finished signal
    }
  }

  qApp->quit();

}

#ifdef HAVE_GSTREAMER
void MainWindow::AutoCompleteTags() {

  // Create the tag fetching stuff if it hasn't been already
  if (!tag_fetcher_) {
    tag_fetcher_.reset(new TagFetcher);
    track_selection_dialog_.reset(new TrackSelectionDialog);
    track_selection_dialog_->set_save_on_close(true);

    connect(tag_fetcher_.get(), SIGNAL(ResultAvailable(Song, SongList)), track_selection_dialog_.get(), SLOT(FetchTagFinished(Song, SongList)), Qt::QueuedConnection);
    connect(tag_fetcher_.get(), SIGNAL(Progress(Song, QString)), track_selection_dialog_.get(), SLOT(FetchTagProgress(Song,QString)));
    connect(track_selection_dialog_.get(), SIGNAL(accepted()), SLOT(AutoCompleteTagsAccepted()));
    connect(track_selection_dialog_.get(), SIGNAL(finished(int)), tag_fetcher_.get(), SLOT(Cancel()));
    connect(track_selection_dialog_.get(), SIGNAL(Error(QString)), SLOT(ShowErrorDialog(QString)));
  }

  // Get the selected songs and start fetching tags for them
  SongList songs;
  autocomplete_tag_items_.clear();
  for (const QModelIndex &index : ui_->playlist->view()->selectionModel()->selection().indexes()) {
    if (index.column() != 0) continue;
    int row = app_->playlist_manager()->current()->proxy()->mapToSource(index).row();
    PlaylistItemPtr item(app_->playlist_manager()->current()->item_at(row));
    Song song = item->Metadata();

    if (song.IsEditable()) {
      songs << song;
      autocomplete_tag_items_ << item;
    }
  }

  track_selection_dialog_->Init(songs);
  tag_fetcher_->StartFetch(songs);

  track_selection_dialog_->show();
}

void MainWindow::AutoCompleteTagsAccepted() {
  
  for (PlaylistItemPtr item : autocomplete_tag_items_) {
    item->Reload();
  }

  // This is really lame but we don't know what rows have changed
  ui_->playlist->view()->update();
}
#endif

void MainWindow::HandleNotificationPreview(OSD::Behaviour type, QString line1, QString line2) {

  if (!app_->playlist_manager()->current()->GetAllSongs().isEmpty()) {
    // Show a preview notification for the first song in the current playlist
    osd_->ShowPreview(type, line1, line2, app_->playlist_manager()->current()->GetAllSongs().first());
  }
  else {
    qLog(Debug) << "The current playlist is empty, showing a fake song";
    // Create a fake song
    Song fake;
    fake.Init("Title", "Artist", "Album", 123);
    fake.set_genre("Classical");
    fake.set_composer("Anonymous");
    fake.set_performer("Anonymous");
    fake.set_track(1);
    fake.set_disc(1);
    fake.set_year(2011);

    osd_->ShowPreview(type, line1, line2, fake);
  }

}

void MainWindow::FocusCollectionTab() {
  ui_->tabs->setCurrentWidget(collection_view_);
}

void MainWindow::ShowConsole() {
  Console *console = new Console(app_, this);
  console->show();
}

void MainWindow::keyPressEvent(QKeyEvent *event) {
  if (event->key() == Qt::Key_Space) {
    app_->player()->PlayPause();
    event->accept();
  }
  else if (event->key() == Qt::Key_Left) {
    ui_->track_slider->Seek(-1);
    event->accept();
  }
  else if (event->key() == Qt::Key_Right) {
    ui_->track_slider->Seek(1);
    event->accept();
  }
  else {
    QMainWindow::keyPressEvent(event);
  }
}