92 lines
2.8 KiB
C++
92 lines
2.8 KiB
C++
/*
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* Strawberry Music Player
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* This file was part of Clementine.
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* Copyright 2011, David Sansome <me@davidsansome.com>
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* Copyright 2019-2021, Jonas Kvinge <jonas@jkvinge.net>
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*
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* Strawberry is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Strawberry is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef TAGREADERCLIENT_H
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#define TAGREADERCLIENT_H
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#include "config.h"
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#include <QObject>
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#include <QList>
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#include <QString>
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#include <QImage>
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#include "core/messagehandler.h"
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#include "core/workerpool.h"
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#include "song.h"
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#include "tagreadermessages.pb.h"
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class QThread;
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class Song;
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template <typename HandlerType> class WorkerPool;
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class TagReaderClient : public QObject {
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Q_OBJECT
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public:
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explicit TagReaderClient(QObject *parent = nullptr);
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typedef AbstractMessageHandler<spb::tagreader::Message> HandlerType;
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typedef HandlerType::ReplyType ReplyType;
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static const char *kWorkerExecutableName;
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void Start();
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void ExitAsync();
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ReplyType *ReadFile(const QString &filename);
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ReplyType *SaveFile(const QString &filename, const Song &metadata);
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ReplyType *IsMediaFile(const QString &filename);
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ReplyType *LoadEmbeddedArt(const QString &filename);
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ReplyType *SaveEmbeddedArt(const QString &filename, const QByteArray &data);
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// Convenience functions that call the above functions and wait for a response.
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// These block the calling thread with a semaphore, and must NOT be called from the TagReaderClient's thread.
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void ReadFileBlocking(const QString &filename, Song *song);
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bool SaveFileBlocking(const QString &filename, const Song &metadata);
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bool IsMediaFileBlocking(const QString &filename);
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QByteArray LoadEmbeddedArtBlocking(const QString &filename);
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QImage LoadEmbeddedArtAsImageBlocking(const QString &filename);
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bool SaveEmbeddedArtBlocking(const QString &filename, const QByteArray &data);
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// TODO: Make this not a singleton
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static TagReaderClient *Instance() { return sInstance; }
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signals:
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void ExitFinished();
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private slots:
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void Exit();
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void WorkerFailedToStart();
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private:
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static TagReaderClient *sInstance;
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WorkerPool<HandlerType> *worker_pool_;
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QList<spb::tagreader::Message> message_queue_;
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QThread *original_thread_;
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};
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typedef TagReaderClient::ReplyType TagReaderReply;
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#endif // TAGREADERCLIENT_H
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