File indexing completed on 2024-04-28 04:41:39

 /*
     SPDX-FileCopyrightText: 2020 Volker Krause <vkrause@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #ifndef KPUBLICTRANSPORT_ASSETREPOSITORY_P_H
 #define KPUBLICTRANSPORT_ASSETREPOSITORY_P_H
 
 #include "kpublictransport_export.h"
 
 #include <QObject>
 #include <QUrl>
 
 #include <deque>
 #include <functional>
 
 class QNetworkAccessManager;
 
 namespace KPublicTransport {
 
 class Attribution;
 
 /**
  * Access and downloading of line logos.
  */
 class KPUBLICTRANSPORT_EXPORT AssetRepository : public QObject
 {
     Q_OBJECT
 public:
     ~AssetRepository() override;
 
     /** Returns the locally cached content for @p url
      *  if available, an empty string if none is available.
      */
     static QUrl localFile(const QUrl &url);
 
     /** Schedules the image at @p url for downloading.
      *  @returns @c true if a download job has been started,
      *  @c false if the requested item is already present or
      *  @p url is invalid.
      */
     bool download(const QUrl &url);
 
     /** Returns @c true if no further download jobs are queued or in progress. */
     bool isQueueEmpty();
 
     /** Returns attributions for the provided assets. */
     const std::vector<Attribution>& attributions() const;
 
     static AssetRepository* instance();
 
 Q_SIGNALS:
     /** Emitted whenever all pending downloads have been completed,
      *  successful or not.
      */
     void downloadFinished();
 
 private:
     friend class Manager;
 
     AssetRepository(QObject *parent = nullptr);
     void setNetworkAccessManagerProvider(std::function<QNetworkAccessManager*()> namProvider);
     void downloadNext();
 
     static AssetRepository *s_instance;
     std::deque<QUrl> m_queue;
     std::function<QNetworkAccessManager*()> m_namProvider;
     mutable std::vector<Attribution> m_attributions;
 };
 
 }
 
 #endif // KPUBLICTRANSPORT_ASSETREPOSITORY_P_H