src/dolphinplacesmodelsingleton.h

   1 /*
   2  * SPDX-FileCopyrightText: 2018 Kai Uwe Broulik <kde@privat.broulik.de>
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-or-later
   5  */
   6
   7 #ifndef DOLPHINPLACESMODELSINGLETON_H
   8 #define DOLPHINPLACESMODELSINGLETON_H
   9
  10 #include <QScopedPointer>
  11 #include <QString>
  12
  13 #include <KFilePlacesModel>
  14
  15 /**
  16  * @brief Dolphin's special-cased KFilePlacesModel
  17  *
  18  * It returns the trash's icon based on whether
  19  * it is full or not.
  20  */
  21 class DolphinPlacesModel : public KFilePlacesModel
  22 {
  23     Q_OBJECT
  24
  25 public:
  26     explicit DolphinPlacesModel(QObject *parent = nullptr);
  27     ~DolphinPlacesModel() override;
  28
  29     bool panelsLocked() const;
  30     void setPanelsLocked(bool locked);
  31
  32     QStringList mimeTypes() const override;
  33     bool dropMimeData(const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent) override;
  34
  35 protected:
  36     QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
  37
  38 private Q_SLOTS:
  39     void slotTrashEmptinessChanged(bool isEmpty);
  40
  41 private:
  42     bool isTrash(const QModelIndex &index) const;
  43
  44     bool m_isEmpty = false;
  45     bool m_panelsLocked = true; // common-case, panels are locked
  46 };
  47
  48 /**
  49  * @brief Provides a global KFilePlacesModel instance.
  50  */
  51 class DolphinPlacesModelSingleton
  52 {
  53 public:
  54     static DolphinPlacesModelSingleton &instance();
  55
  56     DolphinPlacesModel *placesModel() const;
  57
  58     DolphinPlacesModelSingleton(const DolphinPlacesModelSingleton &) = delete;
  59     DolphinPlacesModelSingleton &operator=(const DolphinPlacesModelSingleton &) = delete;
  60
  61 private:
  62     DolphinPlacesModelSingleton();
  63
  64     QScopedPointer<DolphinPlacesModel> m_placesModel;
  65 };
  66
  67 #endif // DOLPHINPLACESMODELSINGLETON_H