Clementine-audio-player-Mac.../src/songinfo/songinfofetcher.h

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/* This file is part of Clementine.
Copyright 2010, David Sansome <me@davidsansome.com>
Clementine 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.
Clementine 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 Clementine. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef SONGINFOFETCHER_H
#define SONGINFOFETCHER_H
#include <QMap>
#include <QObject>
#include <QUrl>
#include "collapsibleinfopane.h"
#include "core/song.h"
class SongInfoProvider;
class QSignalMapper;
class SongInfoFetcher : public QObject {
Q_OBJECT
public:
SongInfoFetcher(QObject* parent = nullptr);
struct Result {
QList<QUrl> images_;
QList<CollapsibleInfoPane::Data> info_;
};
static const int kDefaultTimeoutDuration = 25000; // msec
void AddProvider(SongInfoProvider* provider);
int FetchInfo(const Song& metadata);
QList<SongInfoProvider*> providers() const { return providers_; }
signals:
void InfoResultReady(int id, const CollapsibleInfoPane::Data& data);
void ResultReady(int id, const SongInfoFetcher::Result& result);
private slots:
void ImageReady(int id, const QUrl& url);
void InfoReady(int id, const CollapsibleInfoPane::Data& data);
void ProviderFinished(int id);
void Timeout(int id);
private:
QList<SongInfoProvider*> providers_;
QMap<int, Result> results_;
QMap<int, QList<SongInfoProvider*> > waiting_for_;
QMap<int, QTimer*> timeout_timers_;
QSignalMapper* timeout_timer_mapper_;
int timeout_duration_;
int next_id_;
};
#endif // SONGINFOFETCHER_H