strawberry-audio-player-win.../src/smartplaylists/playlistgeneratorinserter.cpp

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/*
* Strawberry Music Player
* 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 <QObject>
#include <QString>
#include <QtConcurrentRun>
#include "core/closure.h"
#include "core/taskmanager.h"
#include "playlist/playlist.h"
#include "playlistgenerator.h"
#include "playlistgeneratorinserter.h"
class CollectionBackend;
PlaylistGeneratorInserter::PlaylistGeneratorInserter(TaskManager *task_manager, CollectionBackend *collection, QObject *parent)
: QObject(parent),
task_manager_(task_manager),
collection_(collection),
task_id_(-1),
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destination_(nullptr),
is_dynamic_(false)
{}
PlaylistItemList PlaylistGeneratorInserter::Generate(PlaylistGeneratorPtr generator, int dynamic_count) {
if (dynamic_count) {
return generator->GenerateMore(dynamic_count);
}
else {
return generator->Generate();
}
}
void PlaylistGeneratorInserter::Load(Playlist *destination, const int row, const bool play_now, const bool enqueue, const bool enqueue_next, PlaylistGeneratorPtr generator, const int dynamic_count) {
task_id_ = task_manager_->StartTask(tr("Loading smart playlist"));
destination_ = destination;
row_ = row;
play_now_ = play_now;
enqueue_ = enqueue;
enqueue_next_ = enqueue_next;
is_dynamic_ = generator->is_dynamic();
connect(generator.get(), SIGNAL(Error(QString)), SIGNAL(Error(QString)));
QFuture<PlaylistItemList> future = QtConcurrent::run(PlaylistGeneratorInserter::Generate, generator, dynamic_count);
NewClosure(future, this, SLOT(Finished(QFuture<PlaylistItemList>)), future);
}
void PlaylistGeneratorInserter::Finished(QFuture<PlaylistItemList> future) {
PlaylistItemList items = future.result();
if (items.isEmpty()) {
if (is_dynamic_) {
destination_->TurnOffDynamicPlaylist();
}
}
else {
destination_->InsertItems(items, row_, play_now_, enqueue_);
}
task_manager_->SetTaskFinished(task_id_);
deleteLater();
}