src/statusbar/mountpointobservercache.h

   1 /*
   2  * SPDX-FileCopyrightText: 2014 Frank Reininghaus <frank78ac@googlemail.com>
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-or-later
   5  */
   6
   7 #ifndef MOUNTPOINTOBSERVERCACHE_H
   8 #define MOUNTPOINTOBSERVERCACHE_H
   9
  10 #include <QHash>
  11 #include <QObject>
  12
  13 class MountPointObserver;
  14 class QTimer;
  15
  16 class MountPointObserverCache : public QObject
  17 {
  18     Q_OBJECT
  19
  20     MountPointObserverCache();
  21     ~MountPointObserverCache() override;
  22
  23 public:
  24     static MountPointObserverCache *instance();
  25
  26     /**
  27      * Returns a MountPointObserver for the given \a url. A new observer is created if necessary.
  28      */
  29     MountPointObserver *observerForUrl(const QUrl &url);
  30
  31 private Q_SLOTS:
  32     /**
  33      * Removes the given \a observer from the cache.
  34      */
  35     void slotObserverDestroyed(QObject *observer);
  36
  37 private:
  38     QHash<QUrl, MountPointObserver *> m_observerForMountPoint;
  39     QHash<QObject *, QUrl> m_mountPointForObserver;
  40     QTimer *m_updateTimer;
  41
  42     friend class MountPointObserverCacheSingleton;
  43 };
  44
  45 #endif