src/dolphinplacesmodelsingleton.cpp

   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 #include "dolphinplacesmodelsingleton.h"
   8 #include "trash/dolphintrash.h"
   9
  10 #include <KAboutData>
  11 #include <KFilePlacesModel>
  12
  13 #include <QIcon>
  14
  15 DolphinPlacesModel::DolphinPlacesModel(const QString &alternativeApplicationName, QObject *parent)
  16     : KFilePlacesModel(alternativeApplicationName, parent)
  17 {
  18     connect(&Trash::instance(), &Trash::emptinessChanged, this, &DolphinPlacesModel::slotTrashEmptinessChanged);
  19 }
  20
  21 DolphinPlacesModel::~DolphinPlacesModel() = default;
  22
  23 QVariant DolphinPlacesModel::data(const QModelIndex &index, int role) const
  24 {
  25     if (role == Qt::DecorationRole) {
  26         if (isTrash(index)) {
  27             if (m_isEmpty) {
  28                 return QIcon::fromTheme(QStringLiteral("user-trash"));
  29             } else {
  30                 return QIcon::fromTheme(QStringLiteral("user-trash-full"));
  31             }
  32         }
  33     }
  34
  35     return KFilePlacesModel::data(index, role);
  36 }
  37
  38 void DolphinPlacesModel::slotTrashEmptinessChanged(bool isEmpty)
  39 {
  40     if (m_isEmpty == isEmpty) {
  41         return;
  42     }
  43
  44     // NOTE Trash::isEmpty() reads the config file whereas emptinessChanged is
  45     // hooked up to whether a dirlister in trash:/ has any files and they disagree...
  46     m_isEmpty = isEmpty;
  47
  48     for (int i = 0; i < rowCount(); ++i) {
  49         const QModelIndex index = this->index(i, 0);
  50         if (isTrash(index)) {
  51             Q_EMIT dataChanged(index, index, {Qt::DecorationRole});
  52         }
  53     }
  54 }
  55
  56 bool DolphinPlacesModel::isTrash(const QModelIndex &index) const
  57 {
  58     return url(index) == QUrl(QStringLiteral("trash:/"));
  59 }
  60
  61 DolphinPlacesModelSingleton::DolphinPlacesModelSingleton()
  62     : m_placesModel(new DolphinPlacesModel(KAboutData::applicationData().componentName() + applicationNameSuffix()))
  63 {
  64
  65 }
  66
  67 DolphinPlacesModelSingleton &DolphinPlacesModelSingleton::instance()
  68 {
  69     static DolphinPlacesModelSingleton s_self;
  70     return s_self;
  71 }
  72
  73 KFilePlacesModel *DolphinPlacesModelSingleton::placesModel() const
  74 {
  75     return m_placesModel.data();
  76 }
  77
  78 QString DolphinPlacesModelSingleton::applicationNameSuffix()
  79 {
  80     return QStringLiteral("-places-panel");
  81 }