Clementine-audio-player-Mac-Linux-Windows/src/devices/cddadevice.h

/* 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 CDDADEVICE_H
#define CDDADEVICE_H

#include <QTimer>

// These must come after Qt includes (issue 3247)
#include <cdio/cdio.h>

#include "cddasongloader.h"
#include "connecteddevice.h"
#include "core/song.h"

class QUrl;

class CddaDevice : public ConnectedDevice {
  Q_OBJECT

 public:
  // Initializes the CddaDevice but does not open a handle to the device.
  // Using code MUST call Init() after construction before calling and
  // check that it returns true any other methods, to ensure that a valid
  // device handle was correctly opened. Using class methods without
  // a valid device handle is undefined behavior and might result in crashes.
  Q_INVOKABLE CddaDevice(const QUrl& url, DeviceLister* lister,
                         const QString& unique_id, DeviceManager* manager,
                         Application* app, int database_id, bool first_time);
  ~CddaDevice();

  bool Init() override;
  bool CopyToStorage(const MusicStorage::CopyJob&) override { return false; }
  bool DeleteFromStorage(const MusicStorage::DeleteJob&) override {
    return false;
  }
  CddaSongLoader* loader();
  // Check whether a valid device handle was opened.
  bool IsValid() const;
  void WatchForDiscChanges(bool watch);
  SongList songs() const;

  static QStringList url_schemes() { return QStringList() << "cdda"; }

  // QUrl interprets a single number as an ip address, so the QString cdda://1
  // would become the QUrl cdda://0.0.0.1. For this reason, we append a single
  // character to strings when converting to URLs and strip that character
  // when doing the reverse conversion.
  static QUrl TrackStrToUrl(const QString& name) { return QUrl(name + "a"); }
  static QString TrackUrlToStr(const QUrl& url) {
    QString str = url.toString();
    str.remove(str.lastIndexOf(QChar('a')), 1);
    return str;
  }

 signals:
  void SongsDiscovered(const SongList& songs);
  void DiscChanged();

 private slots:
  void SongsLoaded(const SongList& songs);
  void SongsLoadingFinished();
  void CheckDiscChanged();

 private:
  void LoadSongs();

  CdIo_t* cdio_;
  QTimer disc_changed_timer_;
  CddaSongLoader cdda_song_loader_;
};

#endif