Fix uninitialised value

[dolphin.git] / src / views / dolphinview.h

diff --git a/src/views/dolphinview.h b/src/views/dolphinview.h
index cc34097324df0ec0c76fd1cfa41cdcba27f734f9..dbb304f379a94b86faa6eea3d65f6c30cc777a2d 100644 (file)
--- a/src/views/dolphinview.h
+++ b/src/views/dolphinview.h
@@ -8,20 +8,23 @@
 #ifndef DOLPHINVIEW_H
 #define DOLPHINVIEW_H
 
 #ifndef DOLPHINVIEW_H
 #define DOLPHINVIEW_H
 

-#include "dolphintabwidget.h"

 #include "dolphin_export.h"
 #include "dolphin_export.h"

+#include "dolphintabwidget.h"

 #include "tooltips/tooltipmanager.h"
 
 #include "tooltips/tooltipmanager.h"
 

+#include "config-dolphin.h"

 #include <KFileItem>
 #include <KIO/Job>
 #include <KFileItem>
 #include <KIO/Job>

-#include <config-baloo.h>

 #include <kio/fileundomanager.h>
 #include <kparts/part.h>
 
 #include <QMimeData>
 #include <kio/fileundomanager.h>
 #include <kparts/part.h>
 
 #include <QMimeData>

+#include <QPointer>

 #include <QUrl>
 #include <QWidget>
 
 #include <QUrl>
 #include <QWidget>
 

+#include <memory>
+

 typedef KIO::FileUndoManager::CommandType CommandType;
 class QVBoxLayout;
 class DolphinItemListView;
 typedef KIO::FileUndoManager::CommandType CommandType;
 class QVBoxLayout;
 class DolphinItemListView;


@@ -34,6 +37,8 @@ class VersionControlObserver;
 class ViewProperties;
 class QLabel;
 class QGraphicsSceneDragDropEvent;
 class ViewProperties;
 class QLabel;
 class QGraphicsSceneDragDropEvent;

+class QHelpEvent;
+class QProxyStyle;

 class QRegularExpression;
 
 /**
 class QRegularExpression;
 
 /**


@@ -57,8 +62,7 @@ public:
      * view mode is automatically updated if the directory itself
      * defines a view mode (see class ViewProperties for details).
      */
      * view mode is automatically updated if the directory itself
      * defines a view mode (see class ViewProperties for details).
      */

-    enum Mode
-    {
+    enum Mode {

         /**
          * The items are shown as icons with a name-label below.
          */
         /**
          * The items are shown as icons with a name-label below.
          */


@@ -81,7 +85,7 @@ public:
      * @param url              Specifies the content which should be shown.
      * @param parent           Parent widget of the view.
      */
      * @param url              Specifies the content which should be shown.
      * @param parent           Parent widget of the view.
      */

-    DolphinView(const QUrl& url, QWidget* parent);
+    DolphinView(const QUrl &url, QWidget *parent);

 
     ~DolphinView() override;
 
 
     ~DolphinView() override;
 


@@ -104,8 +108,14 @@ public:
      * (GeneralSettings::globalViewProps() returns false), then the
      * changed view mode will be stored automatically.
      */
      * (GeneralSettings::globalViewProps() returns false), then the
      * changed view mode will be stored automatically.
      */

-    void setMode(Mode mode);
-    Mode mode() const;
+    void setViewMode(Mode mode);
+    Mode viewMode() const;
+
+    /**
+     * Enables or disables a mode for quick and easy selection of items.
+     */
+    void setSelectionModeEnabled(bool enabled);
+    bool selectionMode() const;

 
     /**
      * Turns on the file preview for the all files of the current directory,
 
     /**
      * Turns on the file preview for the all files of the current directory,


@@ -168,7 +178,7 @@ public:
      * Marks the item indicated by \p url to be scrolled to and as the
      * current item after directory DolphinView::url() has been loaded.
      */
      * Marks the item indicated by \p url to be scrolled to and as the
      * current item after directory DolphinView::url() has been loaded.
      */

-    void markUrlAsCurrent(const QUrl& url);
+    void markUrlAsCurrent(const QUrl &url);

 
     /**
      * All items that match the regular expression \a regexp will get selected
 
     /**
      * All items that match the regular expression \a regexp will get selected


@@ -195,7 +205,7 @@ public:
      */
     void resetZoomLevel();
 
      */
     void resetZoomLevel();
 

-    void setSortRole(const QByteArray& role);
+    void setSortRole(const QByteArray &role);

     QByteArray sortRole() const;
 
     void setSortOrder(Qt::SortOrder order);
     QByteArray sortRole() const;
 
     void setSortOrder(Qt::SortOrder order);


@@ -205,8 +215,12 @@ public:
     void setSortFoldersFirst(bool foldersFirst);
     bool sortFoldersFirst() const;
 
     void setSortFoldersFirst(bool foldersFirst);
     bool sortFoldersFirst() const;
 

+    /** Sets a separate sorting with hidden files and folders last (true) or not (false). */
+    void setSortHiddenLast(bool hiddenLast);
+    bool sortHiddenLast() const;
+

     /** Sets the additional information which should be shown for the items. */
     /** Sets the additional information which should be shown for the items. */

-    void setVisibleRoles(const QList<QByteArray>& roles);
+    void setVisibleRoles(const QList<QByteArray> &roles);

 
     /** Returns the additional information which should be shown for the items. */
     QList<QByteArray> visibleRoles() const;
 
     /** Returns the additional information which should be shown for the items. */
     QList<QByteArray> visibleRoles() const;


@@ -228,7 +242,7 @@ public:
      * Filters the currently shown items by \a nameFilter. All items
      * which contain the given filter string will be shown.
      */
      * Filters the currently shown items by \a nameFilter. All items
      * which contain the given filter string will be shown.
      */

-    void setNameFilter(const QString& nameFilter);
+    void setNameFilter(const QString &nameFilter);

     QString nameFilter() const;
 
     /**
     QString nameFilter() const;
 
     /**


@@ -236,20 +250,23 @@ public:
      * whose content-type matches those given by the list of filters
      * will be shown.
      */
      * whose content-type matches those given by the list of filters
      * will be shown.
      */

-    void setMimeTypeFilters(const QStringList& filters);
+    void setMimeTypeFilters(const QStringList &filters);

     QStringList mimeTypeFilters() const;
 
     /**
     QStringList mimeTypeFilters() const;
 
     /**

-     * Returns a textual representation of the state of the current
+     * Tells the view to generate an updated status bar text. The result
+     * is returned through the statusBarTextChanged(QString statusBarText) signal.
+     * It will carry a textual representation of the state of the current

      * folder or selected items, suitable for use in the status bar.
      * folder or selected items, suitable for use in the status bar.

+     * Any pending requests of status bar text are killed.

      */
      */

-    QString statusBarText() const;
+    void requestStatusBarText();

 
     /**
      * Returns the version control actions that are provided for the items \p items.
      * Usually the actions are presented in the context menu.
      */
 
     /**
      * Returns the version control actions that are provided for the items \p items.
      * Usually the actions are presented in the context menu.
      */

-    QList<QAction*> versionControlActions(const KFileItemList& items) const;
+    QList<QAction *> versionControlActions(const KFileItemList &items) const;

 
     /**
      * Returns the state of the paste action:
 
     /**
      * Returns the state of the paste action:


@@ -273,15 +290,22 @@ public:
      */
     bool itemsExpandable() const;
 
      */
     bool itemsExpandable() const;
 

+    /**
+     * @returns true if the @p item is one of the items() of this view and
+     * is currently expanded. false otherwise.
+     * Only directories in view modes that allow expanding can ever be expanded.
+     */
+    bool isExpanded(const KFileItem &item) const;
+

     /**
      * Restores the view state (current item, contents position, details view expansion state)
      */
     /**
      * Restores the view state (current item, contents position, details view expansion state)
      */

-    void restoreState(QDataStream& stream);
+    void restoreState(QDataStream &stream);

 
     /**
      * Saves the view state (current item, contents position, details view expansion state)
      */
 
     /**
      * Saves the view state (current item, contents position, details view expansion state)
      */

-    void saveState(QDataStream& stream);
+    void saveState(QDataStream &stream);

 
     /**
      * Returns the root item which represents the current URL.
 
     /**
      * Returns the root item which represents the current URL.


@@ -295,7 +319,7 @@ public:
      * makes sense if specific types of URLs (e.g. search-URLs) should
      * share common view-properties.
      */
      * makes sense if specific types of URLs (e.g. search-URLs) should
      * share common view-properties.
      */

-    void setViewPropertiesContext(const QString& context);
+    void setViewPropertiesContext(const QString &context);

     QString viewPropertiesContext() const;
 
     /**
     QString viewPropertiesContext() const;
 
     /**


@@ -304,19 +328,19 @@ public:
      * @return a valid and adjusted url if the item can be opened as folder,
      * otherwise return an empty url.
      */
      * @return a valid and adjusted url if the item can be opened as folder,
      * otherwise return an empty url.
      */

-    static QUrl openItemAsFolderUrl(const KFileItem& item, const bool browseThroughArchives = true);
+    static QUrl openItemAsFolderUrl(const KFileItem &item, const bool browseThroughArchives = true);

 
     /**
      * Hides tooltip displayed over element.
      */
     void hideToolTip(const ToolTipManager::HideBehavior behavior = ToolTipManager::HideBehavior::Later);
 
 
     /**
      * Hides tooltip displayed over element.
      */
     void hideToolTip(const ToolTipManager::HideBehavior behavior = ToolTipManager::HideBehavior::Later);
 

-public slots:
+public Q_SLOTS:

     /**
      * Changes the directory to \a url. If the current directory is equal to
      * \a url, nothing will be done (use DolphinView::reload() instead).
      */
     /**
      * Changes the directory to \a url. If the current directory is equal to
      * \a url, nothing will be done (use DolphinView::reload() instead).
      */

-    void setUrl(const QUrl& url);
+    void setUrl(const QUrl &url);

 
     /**
      * Selects all items.
 
     /**
      * Selects all items.


@@ -403,27 +427,27 @@ public slots:
     void updateViewState();
 
     /** Activates the view if the item list container gets focus. */
     void updateViewState();
 
     /** Activates the view if the item list container gets focus. */

-    bool eventFilter(QObject* watched, QEvent* event) override;
+    bool eventFilter(QObject *watched, QEvent *event) override;

 
 

-signals:
+Q_SIGNALS:

     /**
      * Is emitted if the view has been activated by e. g. a mouse click.
      */
     void activated();
 
     /** Is emitted if the URL of the view has been changed to \a url. */
     /**
      * Is emitted if the view has been activated by e. g. a mouse click.
      */
     void activated();
 
     /** Is emitted if the URL of the view has been changed to \a url. */

-    void urlChanged(const QUrl& url);
+    void urlChanged(const QUrl &url);

 
     /**
      * Is emitted when clicking on an item with the left mouse button.
      */
 
     /**
      * Is emitted when clicking on an item with the left mouse button.
      */

-    void itemActivated(const KFileItem& item);
+    void itemActivated(const KFileItem &item);

 
     /**
      * Is emitted when multiple items have been activated by e. g.
      * context menu open with.
      */
 
     /**
      * Is emitted when multiple items have been activated by e. g.
      * context menu open with.
      */

-    void itemsActivated(const KFileItemList& items);
+    void itemsActivated(const KFileItemList &items);

 
     /**
      * Is emitted if items have been added or deleted.
 
     /**
      * Is emitted if items have been added or deleted.


@@ -433,7 +457,17 @@ signals:
     /**
      * Is emitted if a new tab should be opened for the URL \a url.
      */
     /**
      * Is emitted if a new tab should be opened for the URL \a url.
      */

-    void tabRequested(const QUrl& url, DolphinTabWidget::TabPlacement tabPlacement);
+    void tabRequested(const QUrl &url);
+
+    /**
+     * Is emitted if a new tab should be opened for the URL \a url and set as active.
+     */
+    void activeTabRequested(const QUrl &url);
+
+    /**
+     * Is emitted if a new window should be opened for the URL \a url.
+     */
+    void windowRequested(const QUrl &url);

 
     /**
      * Is emitted if the view mode (IconsView, DetailsView,
 
     /**
      * Is emitted if the view mode (IconsView, DetailsView,


@@ -450,8 +484,12 @@ signals:
     /** Is emitted if the 'grouped sorting' property has been changed. */
     void groupedSortingChanged(bool groupedSorting);
 
     /** Is emitted if the 'grouped sorting' property has been changed. */
     void groupedSortingChanged(bool groupedSorting);
 

+    /** Is emitted in reaction to a requestStatusBarText() call.
+     * @see requestStatusBarText() */
+    void statusBarTextChanged(QString statusBarText);
+

     /** Is emitted if the sorting by name, size or date has been changed. */
     /** Is emitted if the sorting by name, size or date has been changed. */

-    void sortRoleChanged(const QByteArray& role);
+    void sortRoleChanged(const QByteArray &role);

 
     /** Is emitted if the sort order (ascending or descending) has been changed. */
     void sortOrderChanged(Qt::SortOrder order);
 
     /** Is emitted if the sort order (ascending or descending) has been changed. */
     void sortOrderChanged(Qt::SortOrder order);


@@ -462,9 +500,13 @@ signals:
      */
     void sortFoldersFirstChanged(bool foldersFirst);
 
      */
     void sortFoldersFirstChanged(bool foldersFirst);
 

+    /**
+     * Is emitted if the sorting of hidden files has been changed.
+     */
+    void sortHiddenLastChanged(bool hiddenLast);
+

     /** Is emitted if the additional information shown for this view has been changed. */
     /** Is emitted if the additional information shown for this view has been changed. */

-    void visibleRolesChanged(const QList<QByteArray>& current,
-                             const QList<QByteArray>& previous);
+    void visibleRolesChanged(const QList<QByteArray> &current, const QList<QByteArray> &previous);

 
     /** Is emitted if the zoom level has been changed by zooming in or out. */
     void zoomLevelChanged(int current, int previous);
 
     /** Is emitted if the zoom level has been changed by zooming in or out. */
     void zoomLevelChanged(int current, int previous);


@@ -473,41 +515,37 @@ signals:
      * Is emitted if information of an item is requested to be shown e. g. in the panel.
      * If item is null, no item information request is pending.
      */
      * Is emitted if information of an item is requested to be shown e. g. in the panel.
      * If item is null, no item information request is pending.
      */

-    void requestItemInfo(const KFileItem& item);
+    void requestItemInfo(const KFileItem &item);

 
     /**
      * Is emitted whenever the selection has been changed.
      */
 
     /**
      * Is emitted whenever the selection has been changed.
      */

-    void selectionChanged(const KFileItemList& selection);
+    void selectionChanged(const KFileItemList &selection);

 
     /**
      * Is emitted if a context menu is requested for the item \a item,
      * which is part of \a url. If the item is null, the context menu
 
     /**
      * Is emitted if a context menu is requested for the item \a item,
      * which is part of \a url. If the item is null, the context menu

-     * for the URL should be shown and the custom actions \a customActions
-     * will be added.
+     * for the URL should be shown.

      */
      */

-    void requestContextMenu(const QPoint& pos,
-                            const KFileItem& item,
-                            const QUrl& url,
-                            const QList<QAction*>& customActions);
+    void requestContextMenu(const QPoint &pos, const KFileItem &item, const KFileItemList &selectedItems, const QUrl &url);

 
     /**
      * Is emitted if an information message with the content \a msg
      * should be shown.
      */
 
     /**
      * Is emitted if an information message with the content \a msg
      * should be shown.
      */

-    void infoMessage(const QString& msg);
+    void infoMessage(const QString &msg);

 
     /**
      * Is emitted if an error message with the content \a msg
      * should be shown.
      */
 
     /**
      * Is emitted if an error message with the content \a msg
      * should be shown.
      */

-    void errorMessage(const QString& msg);
+    void errorMessage(const QString &msg);

 
     /**
      * Is emitted if an "operation completed" message with the content \a msg
      * should be shown.
      */
 
     /**
      * Is emitted if an "operation completed" message with the content \a msg
      * should be shown.
      */

-    void operationCompletedMessage(const QString& msg);
+    void operationCompletedMessage(const QString &msg);

 
     /**
      * Is emitted after DolphinView::setUrl() has been invoked and
 
     /**
      * Is emitted after DolphinView::setUrl() has been invoked and


@@ -545,13 +583,13 @@ signals:
      * Emitted when the file-item-model emits redirection.
      * Testcase: fish://localhost
      */
      * Emitted when the file-item-model emits redirection.
      * Testcase: fish://localhost
      */

-    void redirection(const QUrl& oldUrl, const QUrl& newUrl);
+    void redirection(const QUrl &oldUrl, const QUrl &newUrl);

 
     /**
      * Is emitted when the URL set by DolphinView::setUrl() represents a file.
      * In this case no signal errorMessage() will be emitted.
      */
 
     /**
      * Is emitted when the URL set by DolphinView::setUrl() represents a file.
      * In this case no signal errorMessage() will be emitted.
      */

-    void urlIsFileError(const QUrl& url);
+    void urlIsFileError(const QUrl &url);

 
     /**
      * Is emitted when the write state of the folder has been changed. The application
 
     /**
      * Is emitted when the write state of the folder has been changed. The application


@@ -572,6 +610,13 @@ signals:
      */
     void goForwardRequested();
 
      */
     void goForwardRequested();
 

+    /**
+     * Used to request either entering or leaving of selection mode
+     * Entering is typically requested on press and hold.
+     * Leaving by pressing Escape when no item is selected.
+     */
+    void selectionModeChangeRequested(bool enabled);
+

     /**
      * Is emitted when the user wants to move the focus to another view.
      */
     /**
      * Is emitted when the user wants to move the focus to another view.
      */


@@ -581,18 +626,25 @@ signals:
      * Is emitted when the user clicks a tag or a link
      * in the metadata widget of a tooltip.
      */
      * Is emitted when the user clicks a tag or a link
      * in the metadata widget of a tooltip.
      */

-    void urlActivated(const QUrl& url);
+    void urlActivated(const QUrl &url);

 
     void goUpRequested();
 
 
     void goUpRequested();
 

+    void fileItemsChanged(const KFileItemList &changedFileItems);
+
+    /**
+     * Emitted when the current directory of the model was removed.
+     */
+    void currentDirectoryRemoved();
+

 protected:
     /** Changes the zoom level if Control is pressed during a wheel event. */
 protected:
     /** Changes the zoom level if Control is pressed during a wheel event. */

-    void wheelEvent(QWheelEvent* event) override;
+    void wheelEvent(QWheelEvent *event) override;

 
 

-    void hideEvent(QHideEvent* event) override;
-    bool event(QEvent* event) override;
+    void hideEvent(QHideEvent *event) override;
+    bool event(QEvent *event) override;

 
 

-private slots:
+private Q_SLOTS:

     /**
      * Marks the view as active (DolphinView:isActive() will return true)
      * and emits the 'activated' signal if it is not already active.
     /**
      * Marks the view as active (DolphinView:isActive() will return true)
      * and emits the 'activated' signal if it is not already active.


@@ -600,18 +652,19 @@ private slots:
     void activate();
 
     void slotItemActivated(int index);
     void activate();
 
     void slotItemActivated(int index);

-    void slotItemsActivated(const KItemSet& indexes);
+    void slotItemsActivated(const KItemSet &indexes);

     void slotItemMiddleClicked(int index);
     void slotItemMiddleClicked(int index);

-    void slotItemContextMenuRequested(int index, const QPointF& pos);
-    void slotViewContextMenuRequested(const QPointF& pos);
-    void slotHeaderContextMenuRequested(const QPointF& pos);
-    void slotHeaderColumnWidthChangeFinished(const QByteArray& role, qreal current);
+    void slotItemContextMenuRequested(int index, const QPointF &pos);
+    void slotViewContextMenuRequested(const QPointF &pos);
+    void slotHeaderContextMenuRequested(const QPointF &pos);
+    void slotHeaderColumnWidthChangeFinished(const QByteArray &role, qreal current);
+    void slotSidePaddingWidthChanged(qreal width);

     void slotItemHovered(int index);
     void slotItemUnhovered(int index);
     void slotItemHovered(int index);
     void slotItemUnhovered(int index);

-    void slotItemDropEvent(int index, QGraphicsSceneDragDropEvent* event);
-    void slotModelChanged(KItemModelBase* current, KItemModelBase* previous);
+    void slotItemDropEvent(int index, QGraphicsSceneDragDropEvent *event);
+    void slotModelChanged(KItemModelBase *current, KItemModelBase *previous);

     void slotMouseButtonPressed(int itemIndex, Qt::MouseButtons buttons);
     void slotMouseButtonPressed(int itemIndex, Qt::MouseButtons buttons);

-    void slotRenameDialogRenamingFinished(const QList<QUrl>& urls);
+    void slotRenameDialogRenamingFinished(const QList<QUrl> &urls);

     void slotSelectedItemTextPressed(int index);
     void slotCopyingDone(KIO::Job *, const QUrl &, const QUrl &to);
     void slotIncreaseZoom();
     void slotSelectedItemTextPressed(int index);
     void slotCopyingDone(KIO::Job *, const QUrl &, const QUrl &to);
     void slotIncreaseZoom();


@@ -634,7 +687,7 @@ private slots:
      * the signal is emitted only after no selection change has been done
      * within a small delay.
      */
      * the signal is emitted only after no selection change has been done
      * within a small delay.
      */

-    void slotSelectionChanged(const KItemSet& current, const KItemSet& previous);
+    void slotSelectionChanged(const KItemSet &current, const KItemSet &previous);

 
     /**
      * Is called by emitDelayedSelectionChangedSignal() and emits the
 
     /**
      * Is called by emitDelayedSelectionChangedSignal() and emits the


@@ -642,11 +695,20 @@ private slots:
      */
     void emitSelectionChangedSignal();
 
      */
     void emitSelectionChangedSignal();
 

+    /**
+     * Helper method for DolphinView::requestStatusBarText().
+     * Calculates the amount of folders and files and their total size in
+     * response to a KStatJob::result(), then calls emitStatusBarText().
+     * @see requestStatusBarText()
+     * @see emitStatusBarText()
+     */
+    void slotStatJobResult(KJob *job);
+

     /**
      * Updates the view properties of the current URL to the
      * sorting given by \a role.
      */
     /**
      * Updates the view properties of the current URL to the
      * sorting given by \a role.
      */

-    void updateSortRole(const QByteArray& role);
+    void updateSortRole(const QByteArray &role);

 
     /**
      * Updates the view properties of the current URL to the
 
     /**
      * Updates the view properties of the current URL to the


@@ -660,22 +722,28 @@ private slots:
      */
     void updateSortFoldersFirst(bool foldersFirst);
 
      */
     void updateSortFoldersFirst(bool foldersFirst);
 

+    /**
+     * Updates the view properties of the current URL to the
+     * sorting of hidden files given by \a hiddenLast.
+     */
+    void updateSortHiddenLast(bool hiddenLast);
+

     /**
      * Indicates in the status bar that the delete operation
      * of the job \a job has been finished.
      */
     /**
      * Indicates in the status bar that the delete operation
      * of the job \a job has been finished.
      */

-    void slotDeleteFileFinished(KJob* job);
+    void slotDeleteFileFinished(KJob *job);

 
     /**
      * Indicates in the status bar that the trash operation
      * of the job \a job has been finished.
      */
 
     /**
      * Indicates in the status bar that the trash operation
      * of the job \a job has been finished.
      */

-    void slotTrashFileFinished(KJob* job);
+    void slotTrashFileFinished(KJob *job);

 
     /**
      * Invoked when the rename job is done, for error handling.
      */
 
     /**
      * Invoked when the rename job is done, for error handling.
      */

-    void slotRenamingResult(KJob* job);
+    void slotRenamingResult(KJob *job);

 
     /**
      * Invoked when the file item model has started the loading
 
     /**
      * Invoked when the file item model has started the loading


@@ -689,6 +757,12 @@ private slots:
      */
     void slotDirectoryLoadingCompleted();
 
      */
     void slotDirectoryLoadingCompleted();
 

+    /**
+     * Invoked when the file item model indicates that the loading of a directory has
+     * been canceled.
+     */
+    void slotDirectoryLoadingCanceled();
+

     /**
      * Is invoked when items of KFileItemModel have been changed.
      */
     /**
      * Is invoked when items of KFileItemModel have been changed.
      */


@@ -704,17 +778,16 @@ private slots:
      * Is invoked when the sort role has been changed by the user by clicking
      * on a header item. The view properties of the directory will get updated.
      */
      * Is invoked when the sort role has been changed by the user by clicking
      * on a header item. The view properties of the directory will get updated.
      */

-    void slotSortRoleChangedByHeader(const QByteArray& current, const QByteArray& previous);
+    void slotSortRoleChangedByHeader(const QByteArray &current, const QByteArray &previous);

 
     /**
      * Is invoked when the visible roles have been changed by the user by dragging
      * a header item. The view properties of the directory will get updated.
      */
 
     /**
      * Is invoked when the visible roles have been changed by the user by dragging
      * a header item. The view properties of the directory will get updated.
      */

-    void slotVisibleRolesChangedByHeader(const QList<QByteArray>& current,
-                                         const QList<QByteArray>& previous);
+    void slotVisibleRolesChangedByHeader(const QList<QByteArray> &current, const QList<QByteArray> &previous);

 
     void slotRoleEditingCanceled();
 
     void slotRoleEditingCanceled();

-    void slotRoleEditingFinished(int index, const QByteArray& role, const QVariant& value);
+    void slotRoleEditingFinished(int index, const QByteArray &role, const QVariant &value);

 
     /**
      * Observes the item with the URL \a url. As soon as the directory
 
     /**
      * Observes the item with the URL \a url. As soon as the directory


@@ -724,25 +797,20 @@ private slots:
     void observeCreatedItem(const QUrl &url);
 
     /**
     void observeCreatedItem(const QUrl &url);
 
     /**

-     * Called when a redirection happens.
-     * Testcase: fish://localhost
+     * Selects the next item after prev selection deleted/trashed

      */
      */

-    void slotDirectoryRedirection(const QUrl& oldUrl, const QUrl& newUrl);
+    void selectNextItem();

 
     /**
 
     /**

-     * Calculates the number of currently shown files into
-     * \a fileCount and the number of folders into \a folderCount.
-     * The size of all files is written into \a totalFileSize.
-     * It is recommend using this method instead of asking the
-     * directory lister or the model directly, as it takes
-     * filtering and hierarchical previews into account.
+     * Called when a redirection happens.
+     * Testcase: fish://localhost

      */
      */

-    void calculateItemCount(int& fileCount, int& folderCount, KIO::filesize_t& totalFileSize) const;
+    void slotDirectoryRedirection(const QUrl &oldUrl, const QUrl &newUrl);

 
     void slotTwoClicksRenamingTimerTimeout();
 
 private:
 
     void slotTwoClicksRenamingTimerTimeout();
 
 private:

-    void loadDirectory(const QUrl& url, bool reload = false);
+    void loadDirectory(const QUrl &url, bool reload = false);

 
     /**
      * Applies the view properties which are defined by the current URL
 
     /**
      * Applies the view properties which are defined by the current URL


@@ -755,7 +823,7 @@ private:
     /**
      * Applies the given view properties to the DolphinView.
      */
     /**
      * Applies the given view properties to the DolphinView.
      */

-    void applyViewProperties(const ViewProperties& props);
+    void applyViewProperties(const ViewProperties &props);

 
     /**
      * Applies the m_mode property to the corresponding
 
     /**
      * Applies the m_mode property to the corresponding


@@ -763,11 +831,22 @@ private:
      */
     void applyModeToView();
 
      */
     void applyModeToView();
 

+    enum Selection { HasSelection, NoSelection };
+    /**
+     * Helper method for DolphinView::requestStatusBarText().
+     * Generates the status bar text from the parameters and
+     * then emits statusBarTextChanged().
+     * @param totalFileSize the sum of the sizes of the files
+     * @param selection     if HasSelection is passed, the emitted status bar text will say
+     *                      that the folders and files which are counted here are selected.
+     */
+    void emitStatusBarText(const int folderCount, const int fileCount, KIO::filesize_t totalFileSize, const Selection selection);
+

     /**
      * Helper method for DolphinView::paste() and DolphinView::pasteIntoFolder().
      * Pastes the clipboard data into the URL \a url.
      */
     /**
      * Helper method for DolphinView::paste() and DolphinView::pasteIntoFolder().
      * Pastes the clipboard data into the URL \a url.
      */

-    void pasteToUrl(const QUrl& url);
+    void pasteToUrl(const QUrl &url);

 
     /**
      * Returns a list of URLs for all selected items. The list is
 
     /**
      * Returns a list of URLs for all selected items. The list is


@@ -779,7 +858,7 @@ private:
     /**
      * Returns the MIME data for all selected items.
      */
     /**
      * Returns the MIME data for all selected items.
      */

-    QMimeData* selectionMimeData() const;
+    QMimeData *selectionMimeData() const;

 
     /**
      * Updates m_isFolderWritable dependent on whether the folder represented by
 
     /**
      * Updates m_isFolderWritable dependent on whether the folder represented by


@@ -801,14 +880,17 @@ private:
      * @param current URL to be set as current
      * @param selected list of selected items
      */
      * @param current URL to be set as current
      * @param selected list of selected items
      */

-    void forceUrlsSelection(const QUrl& current, const QList<QUrl>& selected);
+    void forceUrlsSelection(const QUrl &current, const QList<QUrl> &selected);

 
     void abortTwoClicksRenaming();
 
     void updatePlaceholderLabel();
 
 
     void abortTwoClicksRenaming();
 
     void updatePlaceholderLabel();
 

+    bool tryShowNameToolTip(QHelpEvent *event);
+

 private:
     void updatePalette();
 private:
     void updatePalette();

+    void showLoadingPlaceholder();

 
     bool m_active;
     bool m_tabsForFiles;
 
     bool m_active;
     bool m_tabsForFiles;


@@ -816,40 +898,58 @@ private:
     bool m_isFolderWritable;
     bool m_dragging; // True if a dragging is done. Required to be able to decide whether a
                      // tooltip may be shown when hovering an item.
     bool m_isFolderWritable;
     bool m_dragging; // True if a dragging is done. Required to be able to decide whether a
                      // tooltip may be shown when hovering an item.

+    bool m_selectNextItem;
+
+    enum class LoadingState { Idle, Loading, Canceled, Completed };
+    LoadingState m_loadingState = LoadingState::Idle;

 
     QUrl m_url;
     QString m_viewPropertiesContext;
     Mode m_mode;
     QList<QByteArray> m_visibleRoles;
 
 
     QUrl m_url;
     QString m_viewPropertiesContext;
     Mode m_mode;
     QList<QByteArray> m_visibleRoles;
 

-    QVBoxLayout* m_topLayout;
+    QPointer<KIO::StatJob> m_statJobForStatusBarText;
+
+    QVBoxLayout *m_topLayout;

 
 

-    KFileItemModel* m_model;
-    DolphinItemListView* m_view;
-    KItemListContainer* m_container;
+    KFileItemModel *m_model;
+    DolphinItemListView *m_view;
+    KItemListContainer *m_container;

 
 

-    ToolTipManager* m_toolTipManager;
+    ToolTipManager *m_toolTipManager;

 
 

-    QTimer* m_selectionChangedTimer;
+    QTimer *m_selectionChangedTimer;

 
     QUrl m_currentItemUrl; // Used for making the view to remember the current URL after F5
     bool m_scrollToCurrentItem; // Used for marking we need to scroll to current item or not
     QPoint m_restoredContentsPosition;
 
 
     QUrl m_currentItemUrl; // Used for making the view to remember the current URL after F5
     bool m_scrollToCurrentItem; // Used for marking we need to scroll to current item or not
     QPoint m_restoredContentsPosition;
 

+    // Used for tracking the accumulated scroll amount (for zooming with high
+    // resolution scroll wheels)
+    int m_controlWheelAccumulatedDelta;
+

     QList<QUrl> m_selectedUrls; // Used for making the view to remember selections after F5
     bool m_clearSelectionBeforeSelectingNewItems;
     bool m_markFirstNewlySelectedItemAsCurrent;
 
     QList<QUrl> m_selectedUrls; // Used for making the view to remember selections after F5
     bool m_clearSelectionBeforeSelectingNewItems;
     bool m_markFirstNewlySelectedItemAsCurrent;
 

-    VersionControlObserver* m_versionControlObserver;
+    VersionControlObserver *m_versionControlObserver;

 
 

-    QTimer* m_twoClicksRenamingTimer;
+    QTimer *m_twoClicksRenamingTimer;

     QUrl m_twoClicksRenamingItemUrl;
     QUrl m_twoClicksRenamingItemUrl;

-    QLabel* m_placeholderLabel;
+    QLabel *m_placeholderLabel;
+    QTimer *m_showLoadingPlaceholderTimer;
+
+    /// The information roleIndex of the list column header currently hovered
+    std::optional<int> m_hoveredColumnHearderRoleIndex;
+
+    /// Used for selection mode. @see setSelectionMode()
+    std::unique_ptr<QProxyStyle> m_proxyStyle;

 
     // For unit tests
     friend class TestBase;
     friend class DolphinDetailsViewTest;
 
     // For unit tests
     friend class TestBase;
     friend class DolphinDetailsViewTest;

-    friend class DolphinPart;                   // Accesses m_model
+    friend class DolphinMainWindowTest;
+    friend class DolphinPart; // Accesses m_model

 };
 
 /// Allow using DolphinView::Mode in QVariant
 };
 
 /// Allow using DolphinView::Mode in QVariant