src/panels/places/placespanel.cpp

   1 /*
   2  * SPDX-FileCopyrightText: 2008-2012 Peter Penz <peter.penz19@gmail.com>
   3  * SPDX-FileCopyrightText: 2021 Kai Uwe Broulik <kde@broulik.de>
   4  *
   5  * Based on KFilePlacesView from kdelibs:
   6  * SPDX-FileCopyrightText: 2007 Kevin Ottens <ervin@kde.org>
   7  * SPDX-FileCopyrightText: 2007 David Faure <faure@kde.org>
   8  *
   9  * SPDX-License-Identifier: GPL-2.0-or-later
  10  */
  11
  12 #include "placespanel.h"
  13
  14 #include "dolphin_generalsettings.h"
  15 #include "dolphin_placespanelsettings.h"
  16 #include "dolphinplacesmodelsingleton.h"
  17 #include "settings/dolphinsettingsdialog.h"
  18 #include "views/draganddrophelper.h"
  19
  20 #include <KFilePlacesModel>
  21 #include <KIO/DropJob>
  22 #include <KIO/Job>
  23 #include <KLocalizedString>
  24 #include <KProtocolManager>
  25
  26 #include <QIcon>
  27 #include <QMenu>
  28 #include <QMimeData>
  29 #include <QShowEvent>
  30
  31 #include <Solid/StorageAccess>
  32
  33 PlacesPanel::PlacesPanel(QWidget *parent)
  34     : KFilePlacesView(parent)
  35 {
  36     setDropOnPlaceEnabled(true);
  37     connect(this, &PlacesPanel::urlsDropped, this, &PlacesPanel::slotUrlsDropped);
  38
  39     setAutoResizeItemsEnabled(false);
  40
  41     setTeardownFunction([this](const QModelIndex &index) {
  42         slotTearDownRequested(index);
  43     });
  44
  45     m_configureTrashAction = new QAction(QIcon::fromTheme(QStringLiteral("configure")), i18nc("@action:inmenu", "Configure Trash…"));
  46     m_configureTrashAction->setPriority(QAction::HighPriority);
  47     connect(m_configureTrashAction, &QAction::triggered, this, &PlacesPanel::slotConfigureTrash);
  48     addAction(m_configureTrashAction);
  49
  50     m_openInSplitView = new QAction(QIcon::fromTheme(QStringLiteral("view-right-new")), i18nc("@action:inmenu", "Open in Split View"));
  51     m_openInSplitView->setPriority(QAction::HighPriority);
  52     connect(m_openInSplitView, &QAction::triggered, this, [this]() {
  53         const QUrl url = currentIndex().data(KFilePlacesModel::UrlRole).toUrl();
  54         Q_EMIT openInSplitViewRequested(url);
  55     });
  56
  57     addAction(m_openInSplitView);
  58
  59     connect(this, &PlacesPanel::contextMenuAboutToShow, this, &PlacesPanel::slotContextMenuAboutToShow);
  60
  61     connect(this, &PlacesPanel::iconSizeChanged, this, [](const QSize &newSize) {
  62         int iconSize = qMin(newSize.width(), newSize.height());
  63         if (iconSize == 0) {
  64             // Don't store 0 size, let's keep -1 for default/small/automatic
  65             iconSize = -1;
  66         }
  67         PlacesPanelSettings *settings = PlacesPanelSettings::self();
  68         settings->setIconSize(iconSize);
  69         settings->save();
  70     });
  71 }
  72
  73 PlacesPanel::~PlacesPanel() = default;
  74
  75 void PlacesPanel::setUrl(const QUrl &url)
  76 {
  77     // KFilePlacesView::setUrl no-ops when no model is set but we only set it in showEvent()
  78     // Remember the URL and set it in showEvent
  79     m_url = url;
  80     KFilePlacesView::setUrl(url);
  81 }
  82
  83 QList<QAction *> PlacesPanel::customContextMenuActions() const
  84 {
  85     return m_customContextMenuActions;
  86 }
  87
  88 void PlacesPanel::setCustomContextMenuActions(const QList<QAction *> &actions)
  89 {
  90     m_customContextMenuActions = actions;
  91 }
  92
  93 void PlacesPanel::proceedWithTearDown()
  94 {
  95     if (m_indexToTearDown.isValid()) {
  96         auto *placesModel = static_cast<KFilePlacesModel *>(model());
  97         placesModel->requestTeardown(m_indexToTearDown);
  98     } else {
  99         qWarning() << "Places entry to tear down is no longer valid";
 100     }
 101 }
 102
 103 void PlacesPanel::readSettings()
 104 {
 105     if (GeneralSettings::autoExpandFolders()) {
 106         setDragAutoActivationDelay(750);
 107     } else {
 108         setDragAutoActivationDelay(0);
 109     }
 110
 111     const int iconSize = qMax(0, PlacesPanelSettings::iconSize());
 112     setIconSize(QSize(iconSize, iconSize));
 113 }
 114
 115 void PlacesPanel::showEvent(QShowEvent *event)
 116 {
 117     if (!event->spontaneous() && !model()) {
 118         readSettings();
 119
 120         auto *placesModel = DolphinPlacesModelSingleton::instance().placesModel();
 121         setModel(placesModel);
 122
 123         connect(placesModel, &KFilePlacesModel::errorMessage, this, &PlacesPanel::errorMessage);
 124         connect(placesModel, &KFilePlacesModel::teardownDone, this, &PlacesPanel::slotTearDownDone);
 125
 126         connect(placesModel, &QAbstractItemModel::rowsInserted, this, &PlacesPanel::slotRowsInserted);
 127         connect(placesModel, &QAbstractItemModel::rowsAboutToBeRemoved, this, &PlacesPanel::slotRowsAboutToBeRemoved);
 128
 129         for (int i = 0; i < model()->rowCount(); ++i) {
 130             connectDeviceSignals(model()->index(i, 0, QModelIndex()));
 131         }
 132
 133         setUrl(m_url);
 134     }
 135
 136     KFilePlacesView::showEvent(event);
 137 }
 138
 139 static bool isInternalDrag(const QMimeData *mimeData)
 140 {
 141     const auto formats = mimeData->formats();
 142     for (const auto &format : formats) {
 143         // from KFilePlacesModel::_k_internalMimetype
 144         if (format.startsWith(QLatin1String("application/x-kfileplacesmodel-"))) {
 145             return true;
 146         }
 147     }
 148     return false;
 149 }
 150
 151 void PlacesPanel::dragMoveEvent(QDragMoveEvent *event)
 152 {
 153     const QModelIndex index = indexAt(event->position().toPoint());
 154     if (index.isValid()) {
 155         auto *placesModel = static_cast<KFilePlacesModel *>(model());
 156
 157         // Reject drag ontop of a non-writable protocol
 158         // We don't know whether we're dropping inbetween or ontop of a place
 159         // so still allow internal drag events so that re-arranging still works.
 160         const QUrl url = placesModel->url(index);
 161         if (url.isValid() && !isInternalDrag(event->mimeData()) && !KProtocolManager::supportsWriting(url)) {
 162             event->setDropAction(Qt::IgnoreAction);
 163         }
 164     }
 165
 166     KFilePlacesView::dragMoveEvent(event);
 167 }
 168
 169 void PlacesPanel::slotConfigureTrash()
 170 {
 171     const QUrl url = currentIndex().data(KFilePlacesModel::UrlRole).toUrl();
 172
 173     DolphinSettingsDialog *settingsDialog = new DolphinSettingsDialog(url, this);
 174     settingsDialog->setCurrentPage(settingsDialog->trashSettings);
 175     settingsDialog->setAttribute(Qt::WA_DeleteOnClose);
 176     settingsDialog->show();
 177 }
 178
 179 void PlacesPanel::slotUrlsDropped(const QUrl &dest, QDropEvent *event, QWidget *parent)
 180 {
 181     KIO::DropJob *job = DragAndDropHelper::dropUrls(dest, event, parent);
 182     if (job) {
 183         connect(job, &KIO::DropJob::result, this, [this](KJob *job) {
 184             if (job->error() && job->error() != KIO::ERR_USER_CANCELED) {
 185                 Q_EMIT errorMessage(job->errorString());
 186             }
 187         });
 188     }
 189 }
 190
 191 void PlacesPanel::slotContextMenuAboutToShow(const QModelIndex &index, QMenu *menu)
 192 {
 193     Q_UNUSED(menu);
 194
 195     auto *placesModel = static_cast<KFilePlacesModel *>(model());
 196     const QUrl url = placesModel->url(index);
 197     const Solid::Device device = placesModel->deviceForIndex(index);
 198
 199     m_configureTrashAction->setVisible(url.scheme() == QLatin1String("trash"));
 200     m_openInSplitView->setVisible(url.isValid());
 201
 202     // show customContextMenuActions only on the view's context menu
 203     if (!url.isValid() && !device.isValid()) {
 204         addActions(m_customContextMenuActions);
 205     } else {
 206         const auto actions = this->actions();
 207         for (QAction *action : actions) {
 208             if (m_customContextMenuActions.contains(action)) {
 209                 removeAction(action);
 210             }
 211         }
 212     }
 213 }
 214
 215 void PlacesPanel::slotTearDownRequested(const QModelIndex &index)
 216 {
 217     auto *placesModel = static_cast<KFilePlacesModel *>(model());
 218
 219     Solid::StorageAccess *storageAccess = placesModel->deviceForIndex(index).as<Solid::StorageAccess>();
 220     if (!storageAccess) {
 221         return;
 222     }
 223
 224     m_indexToTearDown = QPersistentModelIndex(index);
 225
 226     // disconnect the Solid::StorageAccess::teardownRequested
 227     // to prevent emitting PlacesPanel::storageTearDownExternallyRequested
 228     // after we have emitted PlacesPanel::storageTearDownRequested
 229     disconnect(storageAccess, &Solid::StorageAccess::teardownRequested, this, &PlacesPanel::slotTearDownRequestedExternally);
 230     Q_EMIT storageTearDownRequested(storageAccess->filePath());
 231 }
 232
 233 void PlacesPanel::slotTearDownRequestedExternally(const QString &udi)
 234 {
 235     Q_UNUSED(udi);
 236     auto *storageAccess = static_cast<Solid::StorageAccess *>(sender());
 237
 238     Q_EMIT storageTearDownExternallyRequested(storageAccess->filePath());
 239 }
 240
 241 void PlacesPanel::slotTearDownDone(const QModelIndex &index, Solid::ErrorType error, const QVariant &errorData)
 242 {
 243     Q_UNUSED(errorData); // All error handling is currently done in frameworks.
 244
 245     if (index == m_indexToTearDown) {
 246         if (error == Solid::ErrorType::NoError) {
 247             // No error; it must have been unmounted successfully
 248             Q_EMIT storageTearDownSuccessful();
 249         }
 250         m_indexToTearDown = QPersistentModelIndex();
 251     }
 252 }
 253
 254 void PlacesPanel::slotRowsInserted(const QModelIndex &parent, int first, int last)
 255 {
 256     for (int i = first; i <= last; ++i) {
 257         connectDeviceSignals(model()->index(first, 0, parent));
 258     }
 259 }
 260
 261 void PlacesPanel::slotRowsAboutToBeRemoved(const QModelIndex &parent, int first, int last)
 262 {
 263     auto *placesModel = static_cast<KFilePlacesModel *>(model());
 264
 265     for (int i = first; i <= last; ++i) {
 266         const QModelIndex index = placesModel->index(i, 0, parent);
 267
 268         Solid::StorageAccess *storageAccess = placesModel->deviceForIndex(index).as<Solid::StorageAccess>();
 269         if (!storageAccess) {
 270             continue;
 271         }
 272
 273         disconnect(storageAccess, &Solid::StorageAccess::teardownRequested, this, nullptr);
 274     }
 275 }
 276
 277 void PlacesPanel::connectDeviceSignals(const QModelIndex &index)
 278 {
 279     auto *placesModel = static_cast<KFilePlacesModel *>(model());
 280
 281     Solid::StorageAccess *storageAccess = placesModel->deviceForIndex(index).as<Solid::StorageAccess>();
 282     if (!storageAccess) {
 283         return;
 284     }
 285
 286     connect(storageAccess, &Solid::StorageAccess::teardownRequested, this, &PlacesPanel::slotTearDownRequestedExternally);
 287 }
 288
 289 #include "moc_placespanel.cpp"