File indexing completed on 2023-09-24 04:08:47

 // -*- c++ -*-
 /*
     This file is part of the KDE libraries
     SPDX-FileCopyrightText: 1999 Stephan Kulow <coolo@kde.org>
     SPDX-FileCopyrightText: 2000, 2001 Carsten Pfeiffer <pfeiffer@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 #ifndef KDIROPERATOR_H_
 #define KDIROPERATOR_H_
 
 #include "kiofilewidgets_export.h"
 #include <kfile.h>
 
 #include <QStyleOptionViewItem>
 #include <QUrl>
 #include <QWidget>
 
 class QAbstractItemView;
 class QMenu;
 class QModelIndex;
 class QProgressBar;
 
 class KActionCollection;
 class KActionMenu;
 class KConfigGroup;
 class KFileItemList;
 class KFilePreviewGenerator;
 class KPreviewWidgetBase;
 
 #include <KToggleAction> // SIC TODO KF6: Not used, remove
 #include <QStack> // SIC TODO KF6: Not used, remove
 
 // SIC TODO KF6: forward-declaration is enough for these three
 #include <KCompletion>
 #include <KDirLister>
 #include <KFileItem>
 
 namespace KIO
 {
 class CopyJob;
 class DeleteJob;
 }
 
 class KDirOperatorPrivate;
 
 /**
  * @class KDirOperator kdiroperator.h <KDirOperator>
  *
  * This widget works as a network transparent filebrowser. You specify a URL
  * to display and this url will be loaded via KDirLister. The user can
  * browse through directories, highlight and select files, delete or rename
  * files.
  *
  * It supports different views, e.g. a detailed view (see KFileDetailView),
  * a simple icon view (see KFileIconView), a combination of two views,
  * separating directories and files ( KCombiView).
  *
  * Additionally, a preview view is available (see KFilePreview), which can
  * show either a simple or detailed view and additionally a preview widget
  * (see setPreviewWidget()). KImageFilePreview is one implementation
  * of a preview widget, that displays previews for all supported filetypes
  * utilizing KIO::PreviewJob.
  *
  * Currently, those classes don't support Drag&Drop out of the box -- there
  * you have to use your own view-classes. You can use some DnD-aware views
  * from Björn Sahlström <bjorn@kbear.org> until they will be integrated
  * into this library. See http://devel-home.kde.org/~pfeiffer/DnD-classes.tar.gz
  *
  * This widget is the one used in the KFileWidget.
  *
  * Basic usage is like this:
  * \code
  *   KDirOperator *op = new KDirOperator(QUrl("file:///home/gis"), this);
  *   // some signals you might be interested in
  *   connect(op, &KDirOperator::urlEntered, this, [this](const QUrl &url) { slotUrlEntered(url); });
  *   connect(op, &KDirOperator::fileHighlighted, this, [this](const KFileItem &item) { slotFileHighlighted(item) });
  *   connect(op, &KDirOperator::fileSelected, this, [this](const KFileItem &item) { slotFileSelected(item) });
  *   connect(op, &KDirOperator::finishedLoading, this, [this]() { slotLoadingFinished(); };
  *
  *   KConfigGroup grp(KSharedConfig::openConfig(),"Your KDiroperator ConfigGroup" );
  *   op->readConfig( &grp);
  *   op->setViewMode(KFile::Default);
  * \endcode
  *
  * This will create a childwidget of 'this' showing the directory contents
  * of /home/gis in the default-view. The view is determined by the readConfig()
  * call, which will read the KDirOperator settings, the user left your program
  * with (and which you saved with op->writeConfig()).
  *
  * @short A widget for displaying files and browsing directories.
  * @author Stephan Kulow <coolo@kde.org>, Carsten Pfeiffer <pfeiffer@kde.org>
  */
 class KIOFILEWIDGETS_EXPORT KDirOperator : public QWidget
 {
     Q_OBJECT
 
 public:
     /**
      * The various action types. These values can be or'd together
      */
     enum ActionType {
         SortActions = 1,
         ViewActions = 2,
         NavActions = 4,
         FileActions = 8,
         AllActions = 15,
     };
 
     /**
      * Actions provided by KDirOperator that can be accessed from the outside using action()
      */
     enum Action {
         /**
          * An ActionMenu presenting a popupmenu with all actions
          */
         PopupMenu,
         /**
          * Changes to the parent directory
          */
         Up,
         /**
          * Goes back to the previous directory
          */
         Back,
         /**
          * Goes forward in the history
          */
         Forward,
         /**
          * Changes to the user's home directory
          */
         Home,
         /**
          * Reloads the current directory
          */
         Reload,
         /*
          * A KNewFileMenu
          */
         New,
         /**
          * Opens a dialog box to create a directory
          */
         NewFolder,
         Rename,
         Trash,
         /**
          * Deletes the selected files/directories
          */
         Delete,
         /**
          * An ActionMenu containing all sort-options
          */
         SortMenu,
         /**
          * Sorts by name
          */
         SortByName,
         /**
          * Sorts by size
          */
         SortBySize,
         /**
          * Sorts by date
          */
         SortByDate,
         /**
          * Sorts by type
          */
         SortByType,
         /**
          * Changes sort order to ascending
          */
         SortAscending,
         /**
          * Changes sort order to descending
          */
         SortDescending,
         /**
          * Sorts folders before files
          */
         SortFoldersFirst,
         /**
          * Sorts hidden files last
          */
         SortHiddenFilesLast,
         /**
          *  an ActionMenu containing all actions concerning the view
          */
         ViewModeMenu,
         ViewIconsView,
         ViewCompactView,
         ViewDetailsView,
         DecorationMenu,
         DecorationAtTop,
         DecorationAtLeft,
         /**
          * Shows a simple fileview
          */
         ShortView,
         /**
          * Shows a detailed fileview (dates, permissions ,...)
          */
         DetailedView,
 
         TreeView,
         DetailedTreeView,
         AllowExpansionInDetailsView,
         /**
          * shows hidden files
          */
         ShowHiddenFiles,
         /**
          * shows a preview next to the fileview
          */
         ShowPreviewPanel,
         ShowPreview,
         OpenContainingFolder,
         /**
          * Shows a KPropertiesDialog for the selected files
          */
         Properties,
     };
 
     /**
      * Constructs the KDirOperator with no initial view. As the views are
      * configurable, call readConfig() to load the user's configuration
      * and then setView to explicitly set a view.
      *
      * This constructor doesn't start loading the url, setView will do it.
      */
     explicit KDirOperator(const QUrl &urlName = QUrl{}, QWidget *parent = nullptr);
     /**
      * Destroys the KDirOperator.
      */
     ~KDirOperator() override;
 
     /**
      * Enables/disables showing hidden files.
      */
     virtual void setShowHiddenFiles(bool s);
 
     /**
      * @returns true when hidden files are shown or false otherwise.
      */
     bool showHiddenFiles() const;
 
     /**
      * Stops loading immediately. You don't need to call this, usually.
      */
     void close();
 
     /**
      * Sets a filter like "*.cpp *.h *.o". Only files matching that filter
      * will be shown.
      *
      * @see KDirLister::setNameFilter
      * @see nameFilter
      */
     void setNameFilter(const QString &filter);
 
     /**
      * @returns the current namefilter.
      * @see setNameFilter
      */
     QString nameFilter() const;
 
     /**
      * Sets a list of MIME types as filter. Only files of those MIME types
      * will be shown.
      *
      * Example:
      * \code
      * QStringList filter;
      * filter << "text/html" << "image/png" << "inode/directory";
      * dirOperator->setMimefilter( filter );
      * \endcode
      *
      * Node: Without the MIME type inode/directory, only files would be shown.
      * Call updateDir() to apply it.
      *
      * @see KDirLister::setMimeFilter
      * @see mimeFilter
      */
     void setMimeFilter(const QStringList &mimetypes);
 
     /**
      * @returns the current MIME type filter.
      */
     QStringList mimeFilter() const;
 
     /**
      * Only show the files in a given set of MIME types.
      * This is useful in specialized applications (while file managers, on
      * the other hand, want to show all MIME types). Internally uses
      * KNewFileMenu::setSupportedMimeTypes
      *
      * Example:
      * \code
      * QStringList mimeTypes;
      * mimeTypes << "text/html" << "inode/directory";
      * dirOperator->setNewFileMenuSupportedMimeTypes(mimeTypes);
      * \endcode
      *
      * Note: If the list is empty, all options will be shown. Otherwise,
      * without the MIME type inode/directory, only file options will be shown.
      *
      * @see KNewFileMenu::setSupportedMimeTypes
      * @see newFileMenuSupportedMimeTypes
      * @since 4.5
      */
     void setNewFileMenuSupportedMimeTypes(const QStringList &mime);
 
     /**
      * @returns the current Supported Mimes Types.
      * @since 4.5
      */
     QStringList newFileMenuSupportedMimeTypes() const;
 
     /**
      * Setting this to true will make a directory get selected when trying to create a new one that has the same name.
      *
      * @since 5.76
      */
     void setNewFileMenuSelectDirWhenAlreadyExist(bool selectOnDirExists);
 
     /**
      * Clears both the namefilter and MIME type filter, so that all files and
      * directories will be shown. Call updateDir() to apply it.
      *
      * @see setMimeFilter
      * @see setNameFilter
      */
     void clearFilter();
 
     /**
      * @returns the current url
      */
     QUrl url() const;
 
     /**
      * Sets a new url to list.
      * @param clearforward specifies whether the "forward" history should be cleared.
      * @param url the URL to set
      */
     virtual void setUrl(const QUrl &url, bool clearforward);
 
     /**
      * Clears the current selection and attempts to set @p url
      * the current url file.
      */
     void setCurrentItem(const QUrl &url);
 
     /**
      * Clears the current selection and attempts to set @p item
      * as the current item.
      */
     void setCurrentItem(const KFileItem &item);
 
     /**
      * Clears the current selection and attempts to set @p urls
      * the current url files.
      * @since 4.2
      */
     void setCurrentItems(const QList<QUrl> &urls);
 
     /**
      * Clears the current selection and attempts to set @p items
      * as the current items.
      * @since 4.2
      */
     void setCurrentItems(const KFileItemList &items);
 
     // Not _ENABLED_ because this is a virtual method
 #if KIOFILEWIDGETS_BUILD_DEPRECATED_SINCE(5, 100)
     /**
      * Sets a new view to be used for showing and browsing files.
      * Note: this will read the current url() to fill the view.
      *
      * @see KFileTreeView
      * @see view
      *
      * @deprecated since 5.100, no known users.
      */
     KIOFILEWIDGETS_DEPRECATED_VERSION(5, 100, "No known users.")
     virtual void setView(QAbstractItemView *view);
 #endif
 
     /**
      * @returns the currently used view.
      * @see setView
      */
     QAbstractItemView *view() const;
 
     // Not _ENABLED_ because this is a virtual method
 #if KIOFILEWIDGETS_BUILD_DEPRECATED_SINCE(5, 100)
     /**
      * Sets one of the predefined fileviews.
      * @see KFile::FileView
      * @deprecated Since 5.100, use setViewMode(KFile::FileView).
      */
     KIOFILEWIDGETS_DEPRECATED_VERSION_BELATED(5, 103, 5, 100, "Use setViewMode(KFile::FileView)")
     virtual void setView(KFile::FileView viewKind);
 #endif
 
     /**
      * Set the view mode to one of the predefined modes.
      * @see KFile::FileView
      *
      * @since 5.100
      */
     void setViewMode(KFile::FileView viewKind);
 
     /**
      * Returns the current view mode.
      * @returns KFile::FileView
      * @see KFile::FileView
      * @since 5.0
      */
     KFile::FileView viewMode() const;
 
     /**
      * Sets the way to sort files and directories.
      */
     void setSorting(QDir::SortFlags);
 
     /**
      * @returns the current way of sorting files and directories
      */
     QDir::SortFlags sorting() const;
 
     /**
      * @returns true if we are displaying the root directory of the current url
      */
     bool isRoot() const;
 
     /**
      * @returns the object listing the directory
      */
     KDirLister *dirLister() const;
 
     /**
      * @returns the progress widget, that is shown during directory listing.
      * You can for example reparent() it to put it into a statusbar.
      */
     QProgressBar *progressBar() const;
 
     /**
      * Sets the listing/selection mode for the views, an OR'ed combination of
      * @li File
      * @li Directory
      * @li Files
      * @li ExistingOnly
      * @li LocalOnly
      *
      * You cannot mix File and Files of course, as the former means
      * single-selection mode, the latter multi-selection.
      */
     virtual void setMode(KFile::Modes m);
     /**
      * @returns the listing/selection mode.
      */
     KFile::Modes mode() const;
 
     /**
      * Sets a preview-widget to be shown next to the file-view.
      * The ownership of @p w is transferred to KDirOperator, so don't
      * delete it yourself!
      */
     virtual void setPreviewWidget(KPreviewWidgetBase *w);
 
     /**
      * @returns a list of all currently selected items. If there is no view,
      * or there are no selected items, an empty list is returned.
      */
     KFileItemList selectedItems() const;
 
     /**
      * @returns true if @p item is currently selected, or false otherwise.
      */
     bool isSelected(const KFileItem &item) const;
 
     /**
      * @returns the number of directories in the currently listed url.
      * Returns 0 if there is no view.
      */
     int numDirs() const;
 
     /**
      * @returns the number of files in the currently listed url.
      * Returns 0 if there is no view.
      */
     int numFiles() const;
 
     /**
      * @returns a KCompletion object, containing all filenames and
      * directories of the current directory/URL.
      * You can use it to insert it into a KLineEdit or KComboBox
      * Note: it will only contain files, after prepareCompletionObjects()
      * has been called. It will be implicitly called from makeCompletion()
      * or makeDirCompletion()
      */
     KCompletion *completionObject() const;
 
     /**
      * @returns a KCompletion object, containing only all directories of the
      * current directory/URL.
      * You can use it to insert it into a KLineEdit or KComboBox
      * Note: it will only contain directories, after
      * prepareCompletionObjects() has been called. It will be implicitly
      * called from makeCompletion() or makeDirCompletion()
      */
     KCompletion *dirCompletionObject() const;
 
 #if KIOFILEWIDGETS_ENABLE_DEPRECATED_SINCE(5, 100)
     /**
      * an accessor to a collection of all available Actions. The actions
      * are static, they will be there all the time (no need to connect to
      * the signals KActionCollection::inserted() or removed().
      *
      * There are the following actions:
      *
      * @li popupMenu : an ActionMenu presenting a popupmenu with all actions
      * @li up : changes to the parent directory
      * @li back : goes back to the previous directory
      * @li forward : goes forward in the history
      * @li home : changes to the user's home directory
      * @li reload : reloads the current directory
      * @li mkdir : opens a dialog box to create a directory
      * @li delete : deletes the selected files/directories
      * @li sorting menu : an ActionMenu containing all sort-options
      * @li by name : sorts by name
      * @li by size : sorts by size
      * @li by date : sorts by date
      * @li by type : sorts by type
      * @li descending : reverses the sort order
      * @li view menu : an ActionMenu containing all actions concerning the view
      * @li short view : shows a simple fileview
      * @li detailed view : shows a detailed fileview (dates, permissions ,...)
      * @li show hidden : shows hidden files
      * @li preview  : shows a preview next to the fileview
      * @li properties : shows a KPropertiesDialog for the selected files
      *
      * The short and detailed view are in an exclusive group. The sort-by
      * actions are in an exclusive group as well. Also the "separate dirs",
      * "preview" and "single" actions are in an exclusive group.
      *
      * You can e.g. use
      * \code
      * actionCollection()->action( "up" )->plug( someToolBar );
      * \endcode
      * to add a button into a toolbar, which makes the dirOperator change to
      * its parent directory.
      *
      * @returns all available Actions
      *
      * @deprecated since 5.100, use action() or allActions() instead.
      */
     KIOFILEWIDGETS_DEPRECATED_VERSION(5, 100, "Use action() or allActions() instead")
     KActionCollection *actionCollection() const;
 #endif
 
     /**
      * Obtain a given action from the KDirOperator's set of actions.
      *
      * You can e.g. use
      * \code
      * dirOperator->action(KDirOperator::Up)->plug(someToolBar);
      * \endcode
      * to add a button into a toolbar, which makes the dirOperator change to
      * its parent directory.
      *
      *  @since 5.100
      */
     QAction *action(KDirOperator::Action action) const;
 
     /**
      * A list of all actions for this KDirOperator.
      *
      * See action()
      *
      * @since 5.100
      *
      */
     QList<QAction *> allActions() const;
 
     /**
      * Sets the config object and the to be used group in KDirOperator. This
      * will be used to store the view's configuration.
      * If you don't set this, the views cannot save and restore their
      * configuration.
      *
      * Usually you call this right after KDirOperator creation so that the view
      * instantiation can make use of it already.
      *
      * Note that KDirOperator does NOT take ownership of that object (typically
      * it's KSharedConfig::openConfig() anyway.
      *
      * You must not delete the KConfig or KConfigGroup object (and master config object) before
      * either deleting the KDirOperator or  calling setViewConfig(0); or something like that
      *
      * @see viewConfig
      * @see viewConfigGroup
      */
     virtual void setViewConfig(KConfigGroup &configGroup);
 
     /**
      * @returns the group set by setViewConfig configuration.
      */
     KConfigGroup *viewConfigGroup() const;
 
     /**
      * Reads the default settings for a view, i.e.\ the default KFile::FileView.
      * Also reads the sorting and whether hidden files should be shown.
      * Note: the default view will not be set - you have to call
      * \code
      * setViewMode( KFile::Default )
      * \endcode
      * to apply it.
      *
      * @see setView
      * @see setViewConfig
      * @see writeConfig
      */
     virtual void readConfig(const KConfigGroup &configGroup);
 
     /**
      * Saves the current settings like sorting, simple or detailed view.
      *
      * @see readConfig
      * @see setViewConfig
      */
     virtual void writeConfig(KConfigGroup &configGroup);
 
     /**
      * This toggles between double/single click file and directory selection mode.
      * When argument is true, files and directories are highlighted with single click and
      * selected (executed) with double click.
      *
      * NOTE: this currently has no effect.
      *
      * The default follows the single/double click system setting.
      */
     void setOnlyDoubleClickSelectsFiles(bool enable);
 
     /**
      * @returns whether files (not directories) should only be select()ed by
      * double-clicks.
      * @see setOnlyDoubleClickSelectsFiles
      */
     bool onlyDoubleClickSelectsFiles() const;
 
     /**
      * Toggles whether setUrl is called on newly created directories.
      * @since 5.62
      */
     void setFollowNewDirectories(bool enable);
 
     /**
      * @returns true if setUrl is called on newly created directories, false
      * otherwise. Enabled by default.
      * @since 5.62
      * @see setFollowNewDirectories
      */
     bool followNewDirectories() const;
 
     /**
      * Toggles whether setUrl is called on selected directories when a tree view
      * is used.
      * @since 5.62
      */
     void setFollowSelectedDirectories(bool enable);
 
     /**
      * @returns whether setUrl is called on selected directories when a tree
      * view is used. Enabled by default.
      * @since 5.62
      */
     bool followSelectedDirectories() const;
 
 #if KIOFILEWIDGETS_BUILD_DEPRECATED_SINCE(5, 78)
     /**
      * Creates the given directory/url. If it is a relative path,
      * it will be completed with the current directory.
      * If enterDirectory is true, the directory will be entered after a
      * successful operation. If unsuccessful, a messagebox will be presented
      * to the user.
      * @returns true if the directory could be created.
      */
     KIOFILEWIDGETS_DEPRECATED_VERSION(5,
                                       78,
                                       "Deprecated for lack of usage; use the other"
                                       " KDirOperator::mkdir() method instead.")
     virtual bool mkdir(const QString &directory, bool enterDirectory = true);
 #endif
 
     /**
      * Starts and returns a KIO::DeleteJob to delete the given @p items.
      *
      * @param items the list of items to be deleted
      * @param parent the parent widget used for the confirmation dialog
      * @param ask specifies whether a confirmation dialog should be shown
      * @param showProgress passed to the DeleteJob to show a progress dialog
      */
     virtual KIO::DeleteJob *del(const KFileItemList &items, QWidget *parent = nullptr, bool ask = true, bool showProgress = true);
 
     /**
      * Clears the forward and backward history.
      */
     void clearHistory();
 
     /**
      * When using the up or back actions to navigate the directory hierarchy, KDirOperator
      * can highlight the directory that was just left.
      *
      * For example:
      *  - starting in /a/b/c/, going up to /a/b, "c" will be highlighted
      *  - starting in /a/b/c, going up (twice) to /a, "b" will be highlighted;
      *    using the back action to go to /a/b/, "c" will be highlighted
      *  - starting in /a, going to "b", then going to "c", using the back action
      *    to go to /a/b/, "c" will be highlighted; using the back action again to go
      *    to /a/, "b" will be highlighted
      *
      * @see dirHighlighting. The default is to highlight directories when going back/up.
      */
     virtual void setEnableDirHighlighting(bool enable);
 
     /**
      * @returns whether the last directory will be made the current item
      * (and hence highlighted) when going up or back in the directory hierarchy
      *
      * Directories are highlighted by default.
      */
     bool dirHighlighting() const;
 
     /**
      * @returns true if we are in directory-only mode, that is, no files are
      * shown.
      */
     bool dirOnlyMode() const;
 
     static bool dirOnlyMode(uint mode);
 
     /**
      * Sets up the action menu.
      * @param whichActions is an value of OR'd ActionTypes that controls which actions to show in the action menu
      */
     void setupMenu(int whichActions);
 
     /**
      * Reimplemented - allow dropping of files if @p b is true, defaults to true since 5.59
      * @param b true if the widget should allow dropping of files
      */
     virtual void setAcceptDrops(bool b);
 
     /**
      * Sets the options for dropping files.
      * CURRENTLY NOT IMPLEMENTED
      */
     virtual void setDropOptions(int options);
 
     /**
      * Starts and returns a KIO::CopyJob to trash the given @p items.
      *
      * @param items the list of items to be trashed
      * @param parent the parent widget used for the confirmation dialog
      * @param ask specifies whether a confirmation dialog should be shown
      * @param showProgress passed to the CopyJob to show a progress dialog
      */
     virtual KIO::CopyJob *trash(const KFileItemList &items, QWidget *parent, bool ask = true, bool showProgress = true);
 
     /**
      * Returns the preview generator for the current view.
      * @since 4.2
      */
     KFilePreviewGenerator *previewGenerator() const;
 
     /**
      * Forces the inline previews to be shown or hidden, depending on @p show.
      *
      * @param show Whether to show inline previews or not.
      * @since 4.2
      */
     void setInlinePreviewShown(bool show);
 
     /**
      * Returns the position where icons are shown relative to the labels
      * of file items in the icon view.
      * @since 4.2.3
      */
     QStyleOptionViewItem::Position decorationPosition() const;
 
     /**
      * Sets the position where icons shall be shown relative to the labels
      * of file items in the icon view.
      * @since 4.2.3
      */
     void setDecorationPosition(QStyleOptionViewItem::Position position);
 
     /**
      * Returns whether the inline previews are shown or not.
      * @since 4.2
      */
     bool isInlinePreviewShown() const;
 
 #if KIOFILEWIDGETS_ENABLE_DEPRECATED_SINCE(5, 76)
     /**
      * Returns the icon zoom.
      * @since 4.2
      */
     KIOFILEWIDGETS_DEPRECATED_VERSION(5, 76, "Use KDirOperator::iconSize()")
     int iconsZoom() const;
 #endif
 
     /**
      * Returns the icon size in pixels, ranged from KIconLoader::SizeSmall (16) to
      * KIconLoader::SizeEnormous (128).
      *
      * @since 5.76
      */
     int iconSize() const;
 
     /**
      * If the system is set up to trigger items on single click, if @p isSaving
      * is true, we will force to double click to accept.
      * @note this is false by default
      * @since 4.2
      */
     void setIsSaving(bool isSaving);
 
     /**
      * Returns whether KDirOperator will force a double click to accept.
      * @note this is false by default
      * @since 4.2
      */
     bool isSaving() const;
 
     /**
      * Returns the URL schemes that the file widget should allow navigating to.
      *
      * If the returned list is empty, all schemes are supported.
      *
      * @sa QFileDialog::supportedSchemes
      * @since 5.43
      */
     QStringList supportedSchemes() const;
 
     /**
      * Call with @c true to add open-with actions to items in the view.
      * This can be useful when you're attaching an image or text file to
      * an email or uploading an image to some online service, and need to
      * check the contents before going forward.
      *
      * @since 5.87
      */
     void showOpenWithActions(bool enable);
 
 protected:
     /**
      * A view factory for creating predefined fileviews. Called internally by setView,
      * but you can also call it directly. Reimplement this if you depend on self defined fileviews.
      * @param parent   is the QWidget to be set as parent
      * @param viewKind is the predefined view to be set, note: this can be several ones OR:ed together
      * @returns the created view
      * @see KFile::FileView
      * @see setView
      */
     virtual QAbstractItemView *createView(QWidget *parent, KFile::FileView viewKind);
 
     /**
      * Sets a custom KDirLister to list directories.
      * The KDirOperator takes ownership of the given KDirLister.
      */
     virtual void setDirLister(KDirLister *lister);
 
     void resizeEvent(QResizeEvent *event) override;
 
     void keyPressEvent(QKeyEvent *event) override; // TODO KF6 REMOVE
 
     /**
      * Sets up all the actions. Called from the constructor, you usually
      * better not call this.
      */
     void setupActions();
 
     /**
      * Updates the sorting-related actions to comply with the current sorting
      * @see sorting
      */
     void updateSortActions();
 
     /**
      * Updates the view-related actions to comply with the current
      * KFile::FileView
      */
     void updateViewActions();
 
     /**
      * Sets up the context-menu with all the necessary actions. Called from the
      * constructor, you usually don't need to call this.
      */
     void setupMenu();
 
     /**
      * Synchronizes the completion objects with the entries of the
      * currently listed url.
      *
      * Automatically called from makeCompletion() and
      * makeDirCompletion()
      */
     void prepareCompletionObjects();
 
     /**
      * Checks if there support from KIO::PreviewJob for the currently
      * shown files, taking mimeFilter() and nameFilter() into account
      * Enables/disables the preview-action accordingly.
      */
     bool checkPreviewSupport();
 
     /**
      * Called upon right-click to activate the popupmenu.
      */
     virtual void activatedMenu(const KFileItem &item, const QPoint &pos);
 
     void changeEvent(QEvent *event) override;
 
     bool eventFilter(QObject *watched, QEvent *event) override;
 
 public Q_SLOTS:
     /**
      * Goes one step back in the history and opens that url.
      */
     virtual void back();
 
     /**
      * Goes one step forward in the history and opens that url.
      */
     virtual void forward();
 
     /**
      * Enters the home directory.
      */
     virtual void home();
 
     /**
      * Goes one directory up from the current url.
      */
     virtual void cdUp();
 
     /**
      * to update the view after changing the settings
      */
     void updateDir();
 
     /**
      * Re-reads the current url.
      */
     virtual void rereadDir();
 
     /**
      * Opens a dialog to create a new directory.
      */
     virtual void mkdir();
 
     /**
      * Deletes the currently selected files/directories.
      */
     virtual void deleteSelected();
 
     /**
      * Enables/disables actions that are selection dependent. Call this e.g.
      * when you are about to show a popup menu using some of KDirOperators
      * actions.
      */
     void updateSelectionDependentActions();
 
     /**
      * Tries to complete the given string (only completes files).
      */
     QString makeCompletion(const QString &);
 
     /**
      * Tries to complete the given string (only completes directories).
      */
     QString makeDirCompletion(const QString &);
 
     /**
      * Initiates a rename operation on the currently selected files/directories,
      * prompting the user to choose a new name(s) for the currently selected items
      * @see renamingFinished
      * @since 5.67
      */
     void renameSelected();
 
     /**
      * Trashes the currently selected files/directories.
      *
      * This function used to take activation reason and keyboard modifiers,
      * in order to call deleteSelected() if the user wanted to delete.
      * Instead, call deleteSelected().
      *
      * FIXME KAction Port: link deleteSelected() up correctly
      */
     virtual void trashSelected();
 
 #if KIOFILEWIDGETS_ENABLE_DEPRECATED_SINCE(5, 76)
     /**
      * Notifies that the icons size should change. @p value is an int ranged from 0 to 100.
      * 100 means KIconLoader::SizeEnormous.
      * @since 4.2
      */
     KIOFILEWIDGETS_DEPRECATED_VERSION(5, 76, "Use KDirOperator::setIconSize(int)")
     void setIconsZoom(int value);
 #endif
 
     /**
      * Notifies that the icons size should change. @p value is the icon size in pixels, ranged
      * from KIconLoader::SizeSmall (16) to KIconLoader::SizeEnormous (128).
      *
      * @since 5.76
      */
     void setIconSize(int value);
 
     /**
      * Set the URL schemes that the file widget should allow navigating to.
      *
      * If the returned list is empty, all schemes are supported. Examples for
      * schemes are @c "file" or @c "ftp".
      *
      * @sa QFileDialog::setSupportedSchemes
      * @since 5.43
      */
     void setSupportedSchemes(const QStringList &schemes);
 
 protected Q_SLOTS:
     /**
      * Restores the normal cursor after showing the busy-cursor. Also hides
      * the progressbar.
      */
     void resetCursor();
 
     /**
      * Called after setUrl() to load the directory, update the history,
      * etc.
      */
     void pathChanged();
 
     /**
      * Enters the directory specified by the given @p item.
      */
     virtual void selectDir(const KFileItem &item);
 
     /**
      * Emits fileSelected( item )
      */
     void selectFile(const KFileItem &item);
 
     /**
      * Emits fileHighlighted(item)
      */
     void highlightFile(const KFileItem &item);
 
     /**
      * Changes sorting to sort by name
      */
     void sortByName();
 
     /**
      * Changes sorting to sort by size
      */
     void sortBySize();
 
     /**
      * Changes sorting to sort by date
      */
     void sortByDate();
 
     /**
      * Changes sorting to sort by date
      */
     void sortByType();
 
     /**
      * Changes sorting to reverse sorting
      */
     void sortReversed();
 
     /**
      * Toggles showing directories first / having them sorted like files.
      */
     void toggleDirsFirst();
 
     /**
      * Toggles case sensitive / case insensitive sorting
      */
     void toggleIgnoreCase();
 
     /**
      * Tries to make the given @p match as current item in the view and emits
      * completion( match )
      */
     void slotCompletionMatch(const QString &match);
 
 Q_SIGNALS:
     void urlEntered(const QUrl &);
     void updateInformation(int files, int dirs);
     void completion(const QString &);
     void finishedLoading();
 
     /**
      * Emitted whenever the current fileview is changed, either by an explicit
      * call to setView() or by the user selecting a different view thru
      * the GUI.
      */
     void viewChanged(QAbstractItemView *newView);
 
     /**
      * Emitted when a file is highlighted or generally the selection changes in
      * multiselection mode. In the latter case, @p item is a null KFileItem.
      * You can access the selected items with selectedItems().
      */
     void fileHighlighted(const KFileItem &item);
     void dirActivated(const KFileItem &item);
     void fileSelected(const KFileItem &item);
     /**
      * Emitted when files are dropped. Dropping files is disabled by
      * default. You need to enable it with setAcceptDrops()
      * @param item the item on which the drop occurred or 0.
      * @param event the drop event itself.
      * @param urls the urls that where dropped.
      */
     void dropped(const KFileItem &item, QDropEvent *event, const QList<QUrl> &urls);
 
     /**
      * Emitted just before the context menu is shown, allows users to
      * extend the menu with custom actions.
      *
      * @param item the file on which the context menu was invoked
      * @param menu the context menu, pre-populated with the file-management actions
      * @since 4.2
      */
     void contextMenuAboutToShow(const KFileItem &item, QMenu *menu);
 
     /**
      * Will notify that the icon size has changed. Since we save the icon size depending
      * on the view type (list view or a different kind of view), a call to setView() can
      * trigger this signal to be emitted.
      * @since 4.2
      */
     void currentIconSizeChanged(int size);
 
     /**
      * Triggered when the user hit Enter/Return
      * @since 5.57
      */
     void keyEnterReturnPressed();
 
     /**
      * Emitted when renaming selected files has finished.
      *
      * @param urls URL list of the renamed files
      * @since 5.96
      */
     void renamingFinished(const QList<QUrl> &urls);
 
 private:
     KIOFILEWIDGETS_NO_EXPORT void setViewInternal(QAbstractItemView *view);
 
     friend class KDirOperatorPrivate;
     std::unique_ptr<KDirOperatorPrivate> d;
 };
 
 #endif