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 bool DolphinPlacesModel::panelsLocked() const
  24 {
  25     return m_panelsLocked;
  26 }
  27
  28 void DolphinPlacesModel::setPanelsLocked(bool locked)
  29 {
  30     if (m_panelsLocked == locked) {
  31         return;
  32     }
  33
  34     m_panelsLocked = locked;
  35
  36     if (rowCount() > 0) {
  37         int lastPlace = rowCount() - 1;
  38
  39         for (int i = 0; i < rowCount(); ++i) {
  40             if (KFilePlacesModel::groupType(index(i, 0)) != KFilePlacesModel::PlacesType) {
  41                 lastPlace = i - 1;
  42                 break;
  43             }
  44         }
  45
  46         Q_EMIT dataChanged(index(0, 0), index(lastPlace, 0), {KFilePlacesModel::GroupRole});
  47     }
  48 }
  49
  50 QVariant DolphinPlacesModel::data(const QModelIndex &index, int role) const
  51 {
  52     switch (role) {
  53     case Qt::DecorationRole:
  54         if (isTrash(index)) {
  55             if (m_isEmpty) {
  56                 return QIcon::fromTheme(QStringLiteral("user-trash"));
  57             } else {
  58                 return QIcon::fromTheme(QStringLiteral("user-trash-full"));
  59             }
  60         }
  61         break;
  62     case KFilePlacesModel::GroupRole: {
  63         // When panels are unlocked, avoid a double "Places" heading,
  64         // one from the panel title bar, one from the places view section.
  65         if (!m_panelsLocked) {
  66             const auto groupType = KFilePlacesModel::groupType(index);
  67             if (groupType == KFilePlacesModel::PlacesType) {
  68                 return QString();
  69             }
  70         }
  71         break;
  72     }
  73     }
  74
  75     return KFilePlacesModel::data(index, role);
  76 }
  77
  78 void DolphinPlacesModel::slotTrashEmptinessChanged(bool isEmpty)
  79 {
  80     if (m_isEmpty == isEmpty) {
  81         return;
  82     }
  83
  84     // NOTE Trash::isEmpty() reads the config file whereas emptinessChanged is
  85     // hooked up to whether a dirlister in trash:/ has any files and they disagree...
  86     m_isEmpty = isEmpty;
  87
  88     for (int i = 0; i < rowCount(); ++i) {
  89         const QModelIndex index = this->index(i, 0);
  90         if (isTrash(index)) {
  91             Q_EMIT dataChanged(index, index, {Qt::DecorationRole});
  92         }
  93     }
  94 }
  95
  96 bool DolphinPlacesModel::isTrash(const QModelIndex &index) const
  97 {
  98     return url(index) == QUrl(QStringLiteral("trash:/"));
  99 }
 100
 101 DolphinPlacesModelSingleton::DolphinPlacesModelSingleton()
 102     : m_placesModel(new DolphinPlacesModel(KAboutData::applicationData().componentName() + applicationNameSuffix()))
 103 {
 104
 105 }
 106
 107 DolphinPlacesModelSingleton &DolphinPlacesModelSingleton::instance()
 108 {
 109     static DolphinPlacesModelSingleton s_self;
 110     return s_self;
 111 }
 112
 113 DolphinPlacesModel *DolphinPlacesModelSingleton::placesModel() const
 114 {
 115     return m_placesModel.data();
 116 }
 117
 118 QString DolphinPlacesModelSingleton::applicationNameSuffix()
 119 {
 120     return QStringLiteral("-places-panel");
 121 }