File indexing completed on 2023-10-01 04:05:50

 // -*- c++ -*-
 /*
     This file is part of the KDE libraries
     SPDX-FileCopyrightText: 1997, 1998 Richard Moore <rich@kde.org>
     SPDX-FileCopyrightText: 1998 Stephan Kulow <coolo@kde.org>
     SPDX-FileCopyrightText: 1998 Daniel Grana <grana@ie.iwi.unibe.ch>
     SPDX-FileCopyrightText: 1999, 2000, 2001, 2002, 2003 Carsten Pfeiffer <pfeiffer@kde.org>
     SPDX-FileCopyrightText: 2003 Clarence Dang <dang@kde.org>
     SPDX-FileCopyrightText: 2007 David Faure <faure@kde.org>
     SPDX-FileCopyrightText: 2008 Rafael Fernández López <ereslibre@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "kfilewidget.h"
 
 #include "../utils_p.h"
 #include "kfilebookmarkhandler_p.h"
 #include "kfileplacesmodel.h"
 #include "kfileplacesview.h"
 #include "kfilepreviewgenerator.h"
 #include "kfilewidgetdocktitlebar_p.h"
 #include "kurlcombobox.h"
 #include "kurlnavigator.h"
 
 #include <config-kiofilewidgets.h>
 
 #include <defaults-kfile.h>
 #include <kdiroperator.h>
 #include <kfilefiltercombo.h>
 #include <kfileitemdelegate.h>
 #include <kio/job.h>
 #include <kio/jobuidelegate.h>
 #include <kio/statjob.h>
 #include <kprotocolmanager.h>
 #include <krecentdirs.h>
 #include <krecentdocument.h>
 #include <kurlauthorized.h>
 #include <kurlcompletion.h>
 
 #if KIOFILEWIDGETS_BUILD_DEPRECATED_SINCE(5, 100)
 #include <KActionCollection>
 #endif
 
 #include <KActionMenu>
 #include <KConfigGroup>
 #include <KDirLister>
 #include <KFileItem>
 #include <KFilePlacesModel>
 #include <KIconLoader>
 #include <KJobWidgets>
 #include <KLocalizedString>
 #include <KMessageBox>
 #include <KMessageWidget>
 #include <KSharedConfig>
 #include <KShell>
 #include <KStandardAction>
 #include <KToolBar>
 
 #include <QAbstractProxyModel>
 #include <QApplication>
 #include <QCheckBox>
 #include <QDebug>
 #include <QDockWidget>
 #include <QHelpEvent>
 #include <QIcon>
 #include <QLabel>
 #include <QLayout>
 #include <QLineEdit>
 #include <QLoggingCategory>
 #include <QMenu>
 #include <QMimeDatabase>
 #include <QPushButton>
 #include <QScreen>
 #include <QSplitter>
 #include <QStandardPaths>
 #include <QTimer>
 
 #include <algorithm>
 #include <array>
 
 Q_DECLARE_LOGGING_CATEGORY(KIO_KFILEWIDGETS_FW)
 Q_LOGGING_CATEGORY(KIO_KFILEWIDGETS_FW, "kf.kio.kfilewidgets.kfilewidget", QtInfoMsg)
 
 class KFileWidgetPrivate
 {
 public:
     explicit KFileWidgetPrivate(KFileWidget *qq)
         : q(qq)
     {
     }
 
     ~KFileWidgetPrivate()
     {
         delete m_bookmarkHandler; // Should be deleted before m_ops!
         // Must be deleted before m_ops, otherwise the unit test crashes due to the
         // connection to the QDockWidget::visibilityChanged signal, which may get
         // emitted after this object is destroyed
         delete m_placesDock;
         delete m_ops;
     }
 
     QSize screenSize() const
     {
         return q->parentWidget() ? q->parentWidget()->screen()->availableGeometry().size() //
                                  : QGuiApplication::primaryScreen()->availableGeometry().size();
     }
 
     void initDirOpWidgets();
     void initToolbar();
     void initZoomWidget();
     void initLocationWidget();
     void initFilterWidget();
     void updateLocationWhatsThis();
     void updateAutoSelectExtension();
     void initPlacesPanel();
     void setPlacesViewSplitterSizes();
     void setLafBoxColumnWidth();
     void initGUI();
     void readViewConfig();
     void writeViewConfig();
     void setNonExtSelection();
     void setLocationText(const QUrl &);
     void setLocationText(const QList<QUrl> &);
     void appendExtension(QUrl &url);
     void updateLocationEditExtension(const QString &);
     QString findMatchingFilter(const QString &filter, const QString &filename) const;
     void updateFilter();
     void updateFilterText();
     /**
      * Parses the string "line" for files. If line doesn't contain any ", the
      * whole line will be interpreted as one file. If the number of " is odd,
      * an empty list will be returned. Otherwise, all items enclosed in " "
      * will be returned as correct urls.
      */
     QList<QUrl> tokenize(const QString &line) const;
     /**
      * Reads the recent used files and inserts them into the location combobox
      */
     void readRecentFiles();
     /**
      * Saves the entries from the location combobox.
      */
     void saveRecentFiles();
     /**
      * called when an item is highlighted/selected in multiselection mode.
      * handles setting the m_locationEdit.
      */
     void multiSelectionChanged();
 
     /**
      * Returns the absolute version of the URL specified in m_locationEdit.
      */
     QUrl getCompleteUrl(const QString &) const;
 
     /**
      * Sets the dummy entry on the history combo box. If the dummy entry
      * already exists, it is overwritten with this information.
      */
     void setDummyHistoryEntry(const QString &text, const QIcon &icon = QIcon(), bool usePreviousPixmapIfNull = true);
 
     /**
      * Removes the dummy entry of the history combo box.
      */
     void removeDummyHistoryEntry();
 
     /**
      * Asks for overwrite confirmation using a KMessageBox and returns
      * true if the user accepts.
      *
      * @since 4.2
      */
     bool toOverwrite(const QUrl &);
 
     // private slots
     void slotLocationChanged(const QString &);
     void urlEntered(const QUrl &);
     void enterUrl(const QUrl &);
     void enterUrl(const QString &);
     void locationAccepted(const QString &);
     void slotFilterChanged();
     void fileHighlighted(const KFileItem &);
     void fileSelected(const KFileItem &);
     void slotLoadingFinished();
     void fileCompletion(const QString &);
     void togglePlacesPanel(bool show, QObject *sender = nullptr);
     void toggleBookmarks(bool);
     void slotAutoSelectExtClicked();
     void placesViewSplitterMoved(int, int);
     void activateUrlNavigator();
 
     enum ZoomState {
         ZoomOut,
         ZoomIn,
     };
     void changeIconsSize(ZoomState zoom);
     void slotDirOpIconSizeChanged(int size);
     void slotIconSizeSliderMoved(int);
     void slotIconSizeChanged(int);
     void slotViewDoubleClicked(const QModelIndex &);
     void slotViewKeyEnterReturnPressed();
 
     void addToRecentDocuments();
 
     QString locationEditCurrentText() const;
 
     /**
      * KIO::NetAccess::mostLocalUrl local replacement.
      * This method won't show any progress dialogs for stating, since
      * they are very annoying when stating.
      */
     QUrl mostLocalUrl(const QUrl &url);
 
     void setInlinePreviewShown(bool show);
 
     KFileWidget *const q;
 
     // the last selected url
     QUrl m_url;
 
     // now following all kind of widgets, that I need to rebuild
     // the geometry management
     QBoxLayout *m_boxLayout = nullptr;
     QGridLayout *m_lafBox = nullptr;
     QVBoxLayout *m_vbox = nullptr;
 
     QLabel *m_locationLabel = nullptr;
     QWidget *m_opsWidget = nullptr;
     QVBoxLayout *m_opsWidgetLayout = nullptr;
 
     QLabel *m_filterLabel = nullptr;
     KUrlNavigator *m_urlNavigator = nullptr;
     KMessageWidget *m_messageWidget = nullptr;
     QPushButton *m_okButton = nullptr;
     QPushButton *m_cancelButton = nullptr;
     QDockWidget *m_placesDock = nullptr;
     KFilePlacesView *m_placesView = nullptr;
     QSplitter *m_placesViewSplitter = nullptr;
     // caches the places view width. This value will be updated when the splitter
     // is moved. This allows us to properly set a value when the dialog itself
     // is resized
     int m_placesViewWidth = -1;
 
     QWidget *m_labeledCustomWidget = nullptr;
     QWidget *m_bottomCustomWidget = nullptr;
 
     // Automatically Select Extension stuff
     QCheckBox *m_autoSelectExtCheckBox = nullptr;
     QString m_extension; // current extension for this filter
 
     QList<QUrl> m_urlList; // the list of selected urls
 
     KFileWidget::OperationMode m_operationMode = KFileWidget::Opening;
 
     // The file class used for KRecentDirs
     QString m_fileClass;
 
     KFileBookmarkHandler *m_bookmarkHandler = nullptr;
 
     KActionMenu *m_bookmarkButton = nullptr;
 
     KToolBar *m_toolbar = nullptr;
     KUrlComboBox *m_locationEdit = nullptr;
     KDirOperator *m_ops = nullptr;
     KFileFilterCombo *m_filterWidget = nullptr;
     QTimer m_filterDelayTimer;
 
     KFilePlacesModel *m_model = nullptr;
 
     // whether or not the _user_ has checked the above box
     bool m_autoSelectExtChecked = false;
 
     // indicates if the location edit should be kept or cleared when changing
     // directories
     bool m_keepLocation = false;
 
     // the KDirOperators view is set in KFileWidget::show(), so to avoid
     // setting it again and again, we have this nice little boolean :)
     bool m_hasView = false;
 
     bool m_hasDefaultFilter = false; // necessary for the m_operationMode
     bool m_inAccept = false; // true between beginning and end of accept()
     bool m_dummyAdded = false; // if the dummy item has been added. This prevents the combo from having a
     // blank item added when loaded
     bool m_confirmOverwrite = false;
     bool m_differentHierarchyLevelItemsEntered = false;
 
     const std::array<short, 8> m_stdIconSizes = {
         KIconLoader::SizeSmall,
         KIconLoader::SizeSmallMedium,
         KIconLoader::SizeMedium,
         KIconLoader::SizeLarge,
         KIconLoader::SizeHuge,
         KIconLoader::SizeEnormous,
         256,
         512,
     };
 
     QSlider *m_iconSizeSlider = nullptr;
     QAction *m_zoomOutAction = nullptr;
     QAction *m_zoomInAction = nullptr;
 
     // The group which stores app-specific settings. These settings are recent
     // files and urls. Visual settings (view mode, sorting criteria...) are not
     // app-specific and are stored in kdeglobals
     KConfigGroup m_configGroup;
 
     KToggleAction *m_toggleBookmarksAction = nullptr;
     KToggleAction *m_togglePlacesPanelAction = nullptr;
 };
 
 Q_GLOBAL_STATIC(QUrl, lastDirectory) // to set the start path
 
 // returns true if the string contains "<a>:/" sequence, where <a> is at least 2 alpha chars
 static bool containsProtocolSection(const QString &string)
 {
     int len = string.length();
     static const char prot[] = ":/";
     for (int i = 0; i < len;) {
         i = string.indexOf(QLatin1String(prot), i);
         if (i == -1) {
             return false;
         }
         int j = i - 1;
         for (; j >= 0; j--) {
             const QChar &ch(string[j]);
             if (ch.toLatin1() == 0 || !ch.isLetter()) {
                 break;
             }
             if (ch.isSpace() && (i - j - 1) >= 2) {
                 return true;
             }
         }
         if (j < 0 && i >= 2) {
             return true; // at least two letters before ":/"
         }
         i += 3; // skip : and / and one char
     }
     return false;
 }
 
 // this string-to-url conversion function handles relative paths, full paths and URLs
 // without the http-prepending that QUrl::fromUserInput does.
 static QUrl urlFromString(const QString &str)
 {
     if (Utils::isAbsoluteLocalPath(str)) {
         return QUrl::fromLocalFile(str);
     }
     QUrl url(str);
     if (url.isRelative()) {
         url.clear();
         url.setPath(str);
     }
     return url;
 }
 
 KFileWidget::KFileWidget(const QUrl &_startDir, QWidget *parent)
     : QWidget(parent)
     , d(new KFileWidgetPrivate(this))
 {
     QUrl startDir(_startDir);
     // qDebug() << "startDir" << startDir;
     QString filename;
 
     d->m_okButton = new QPushButton(this);
     KGuiItem::assign(d->m_okButton, KStandardGuiItem::ok());
     d->m_okButton->setDefault(true);
     d->m_cancelButton = new QPushButton(this);
     KGuiItem::assign(d->m_cancelButton, KStandardGuiItem::cancel());
     // The dialog shows them
     d->m_okButton->hide();
     d->m_cancelButton->hide();
 
     d->initDirOpWidgets();
 
     // Resolve this now so that a 'kfiledialog:' URL, if specified,
     // does not get inserted into the urlNavigator history.
     d->m_url = getStartUrl(startDir, d->m_fileClass, filename);
     startDir = d->m_url;
 
 #if KIOFILEWIDGETS_BUILD_DEPRECATED_SINCE(5, 100)
     KActionCollection *coll = d->m_ops->actionCollection();
     coll->addAssociatedWidget(this);
 #else
     const auto operatorActions = d->m_ops->allActions();
     for (QAction *action : operatorActions) {
         addAction(action);
     }
 #endif
 
     QAction *goToNavigatorAction = new QAction(this);
 
     connect(goToNavigatorAction, &QAction::triggered, this, [this]() {
         d->activateUrlNavigator();
     });
 
     goToNavigatorAction->setShortcut(QKeySequence(Qt::CTRL | Qt::Key_L));
 
 #if KIOFILEWIDGETS_BUILD_DEPRECATED_SINCE(5, 100)
     coll->addAction(QStringLiteral("gotonavigator"), goToNavigatorAction);
 #else
     addAction(goToNavigatorAction);
 #endif
 
     KUrlComboBox *pathCombo = d->m_urlNavigator->editor();
     KUrlCompletion *pathCompletionObj = new KUrlCompletion(KUrlCompletion::DirCompletion);
     pathCombo->setCompletionObject(pathCompletionObj);
     pathCombo->setAutoDeleteCompletionObject(true);
 
     connect(d->m_urlNavigator, &KUrlNavigator::urlChanged, this, [this](const QUrl &url) {
         d->enterUrl(url);
     });
     connect(d->m_urlNavigator, &KUrlNavigator::returnPressed, d->m_ops, qOverload<>(&QWidget::setFocus));
 
     // Location, "Name:", line-edit and label
     d->initLocationWidget();
 
     // "Filter:" line-edit and label
     d->initFilterWidget();
 
     // the Automatically Select Extension checkbox
     // (the text, visibility etc. is set in updateAutoSelectExtension(), which is called by readConfig())
     d->m_autoSelectExtCheckBox = new QCheckBox(this);
     connect(d->m_autoSelectExtCheckBox, &QCheckBox::clicked, this, [this]() {
         d->slotAutoSelectExtClicked();
     });
 
     d->initGUI(); // activate GM
 
     // read our configuration
     KSharedConfig::Ptr config = KSharedConfig::openConfig();
     config->reparseConfiguration(); // grab newly added dirs by other processes (#403524)
     KConfigGroup group(config, ConfigGroup);
     readConfig(group);
 
     d->m_ops->action(KDirOperator::ShowPreview)->setChecked(d->m_ops->isInlinePreviewShown());
     d->slotDirOpIconSizeChanged(d->m_ops->iconSize());
 
     KFilePreviewGenerator *pg = d->m_ops->previewGenerator();
     if (pg) {
         d->m_ops->action(KDirOperator::ShowPreview)->setChecked(pg->isPreviewShown());
     }
 
     // getStartUrl() above will have resolved the startDir parameter into
     // a directory and file name in the two cases: (a) where it is a
     // special "kfiledialog:" URL, or (b) where it is a plain file name
     // only without directory or protocol.  For any other startDir
     // specified, it is not possible to resolve whether there is a file name
     // present just by looking at the URL; the only way to be sure is
     // to stat it.
     bool statRes = false;
     if (filename.isEmpty()) {
         KIO::StatJob *statJob = KIO::stat(startDir, KIO::HideProgressInfo);
         KJobWidgets::setWindow(statJob, this);
         statRes = statJob->exec();
         // qDebug() << "stat of" << startDir << "-> statRes" << statRes << "isDir" << statJob->statResult().isDir();
         if (!statRes || !statJob->statResult().isDir()) {
             filename = startDir.fileName();
             startDir = startDir.adjusted(QUrl::RemoveFilename | QUrl::StripTrailingSlash);
             // qDebug() << "statJob -> startDir" << startDir << "filename" << filename;
         }
     }
 
     d->m_ops->setUrl(startDir, true);
     d->m_urlNavigator->setLocationUrl(startDir);
     if (d->m_placesView) {
         d->m_placesView->setUrl(startDir);
     }
 
     // We have a file name either explicitly specified, or have checked that
     // we could stat it and it is not a directory.  Set it.
     if (!filename.isEmpty()) {
         QLineEdit *lineEdit = d->m_locationEdit->lineEdit();
         // qDebug() << "selecting filename" << filename;
         if (statRes) {
             d->setLocationText(QUrl(filename));
         } else {
             lineEdit->setText(filename);
             // Preserve this filename when clicking on the view (cf fileHighlighted)
             lineEdit->setModified(true);
         }
         lineEdit->selectAll();
     }
 
     d->m_locationEdit->setFocus();
 
     const QAction *showHiddenAction = d->m_ops->action(KDirOperator::ShowHiddenFiles);
     Q_ASSERT(showHiddenAction);
     d->m_urlNavigator->setShowHiddenFolders(showHiddenAction->isChecked());
     connect(showHiddenAction, &QAction::toggled, this, [this](bool checked) {
         d->m_urlNavigator->setShowHiddenFolders(checked);
     });
 
     const QAction *hiddenFilesLastAction = d->m_ops->action(KDirOperator::SortHiddenFilesLast);
     Q_ASSERT(hiddenFilesLastAction);
     d->m_urlNavigator->setSortHiddenFoldersLast(hiddenFilesLastAction->isChecked());
     connect(hiddenFilesLastAction, &QAction::toggled, this, [this](bool checked) {
         d->m_urlNavigator->setSortHiddenFoldersLast(checked);
     });
 }
 
 KFileWidget::~KFileWidget()
 {
     KSharedConfig::Ptr config = KSharedConfig::openConfig();
     config->sync();
     d->m_ops->removeEventFilter(this);
     d->m_locationEdit->removeEventFilter(this);
 }
 
 void KFileWidget::setLocationLabel(const QString &text)
 {
     d->m_locationLabel->setText(text);
 }
 
 void KFileWidget::setFilter(const QString &filter)
 {
     int pos = filter.indexOf(QLatin1Char('/'));
 
     // Check for an un-escaped '/', if found
     // interpret as a MIME filter.
 
     if (pos > 0 && filter[pos - 1] != QLatin1Char('\\')) {
         QStringList filters = filter.split(QLatin1Char(' '), Qt::SkipEmptyParts);
         setMimeFilter(filters);
         return;
     }
 
     // Strip the escape characters from
     // escaped '/' characters.
 
     QString copy(filter);
     for (pos = 0; (pos = copy.indexOf(QLatin1String("\\/"), pos)) != -1; ++pos) {
         copy.remove(pos, 1);
     }
 
     d->m_ops->clearFilter();
     d->m_filterWidget->setFilter(copy);
     d->m_ops->setNameFilter(d->m_filterWidget->currentFilter());
     d->m_ops->updateDir();
     d->m_hasDefaultFilter = false;
     d->m_filterWidget->setEditable(true);
 
     d->updateAutoSelectExtension();
 }
 
 QString KFileWidget::currentFilter() const
 {
     return d->m_filterWidget->currentFilter();
 }
 
 void KFileWidget::setMimeFilter(const QStringList &mimeTypes, const QString &defaultType)
 {
     d->m_filterWidget->setMimeFilter(mimeTypes, defaultType);
 
     QStringList types =
         d->m_filterWidget->currentFilter().split(QLatin1Char(' '), Qt::SkipEmptyParts); // QStringList::split(" ", d->m_filterWidget->currentFilter());
 
     types.append(QStringLiteral("inode/directory"));
     d->m_ops->clearFilter();
     d->m_ops->setMimeFilter(types);
     d->m_hasDefaultFilter = !defaultType.isEmpty();
     d->m_filterWidget->setEditable(!d->m_hasDefaultFilter || d->m_operationMode != Saving);
 
     d->updateAutoSelectExtension();
     d->updateFilterText();
 }
 
 void KFileWidget::clearFilter()
 {
     d->m_filterWidget->setFilter(QString());
     d->m_ops->clearFilter();
     d->m_hasDefaultFilter = false;
     d->m_filterWidget->setEditable(true);
 
     d->updateAutoSelectExtension();
 }
 
 QString KFileWidget::currentMimeFilter() const
 {
     int i = d->m_filterWidget->currentIndex();
     if (d->m_filterWidget->showsAllTypes() && i == 0) {
         return QString(); // The "all types" item has no MIME type
     }
 
     return d->m_filterWidget->filters().at(i);
 }
 
 QMimeType KFileWidget::currentFilterMimeType()
 {
     QMimeDatabase db;
     return db.mimeTypeForName(currentMimeFilter());
 }
 
 void KFileWidget::setPreviewWidget(KPreviewWidgetBase *w)
 {
     d->m_ops->setPreviewWidget(w);
     d->m_ops->clearHistory();
     d->m_hasView = true;
 }
 
 QUrl KFileWidgetPrivate::getCompleteUrl(const QString &_url) const
 {
     //     qDebug() << "got url " << _url;
 
     const QString url = KShell::tildeExpand(_url);
     QUrl u;
 
     if (Utils::isAbsoluteLocalPath(url)) {
         u = QUrl::fromLocalFile(url);
     } else {
         QUrl relativeUrlTest(m_ops->url());
         relativeUrlTest.setPath(Utils::concatPaths(relativeUrlTest.path(), url));
         if (!m_ops->dirLister()->findByUrl(relativeUrlTest).isNull() || !KProtocolInfo::isKnownProtocol(relativeUrlTest)) {
             u = relativeUrlTest;
         } else {
             // Try to preserve URLs if they have a scheme (for example,
             // "https://example.com/foo.txt") and otherwise resolve relative
             // paths to absolute ones (e.g. "foo.txt" -> "file:///tmp/foo.txt").
             u = QUrl(url);
             if (u.isRelative()) {
                 u = relativeUrlTest;
             }
         }
     }
 
     return u;
 }
 
 QSize KFileWidget::sizeHint() const
 {
     int fontSize = fontMetrics().height();
     const QSize goodSize(48 * fontSize, 30 * fontSize);
     const QSize scrnSize = d->screenSize();
     const QSize minSize(scrnSize / 2);
     const QSize maxSize(scrnSize * qreal(0.9));
     return (goodSize.expandedTo(minSize).boundedTo(maxSize));
 }
 
 static QString relativePathOrUrl(const QUrl &baseUrl, const QUrl &url);
 
 /**
  * Escape the given Url so that is fit for use in the selected list of file. This
  * mainly handles double quote (") characters. These are used to separate entries
  * in the list, however, if `"` appears in the filename (or path), this will be
  * escaped as `\"`. Later, the tokenizer is able to understand the difference
  * and do the right thing
  */
 static QString escapeDoubleQuotes(QString &&path);
 
 // Called by KFileDialog
 void KFileWidget::slotOk()
 {
     //     qDebug() << "slotOk\n";
 
     const QString locationEditCurrentText(KShell::tildeExpand(d->locationEditCurrentText()));
 
     QList<QUrl> locationEditCurrentTextList(d->tokenize(locationEditCurrentText));
     KFile::Modes mode = d->m_ops->mode();
 
     // if there is nothing to do, just return from here
     if (locationEditCurrentTextList.isEmpty()) {
         return;
     }
 
     // Make sure that one of the modes was provided
     if (!((mode & KFile::File) || (mode & KFile::Directory) || (mode & KFile::Files))) {
         mode |= KFile::File;
         // qDebug() << "No mode() provided";
     }
 
     // Clear the list as we are going to refill it
     d->m_urlList.clear();
 
     const bool directoryMode = (mode & KFile::Directory);
     const bool onlyDirectoryMode = directoryMode && !(mode & KFile::File) && !(mode & KFile::Files);
 
     // if we are on file mode, and the list of provided files/folder is greater than one, inform
     // the user about it
     if (locationEditCurrentTextList.count() > 1) {
         if (mode & KFile::File) {
             KMessageBox::error(this, i18n("You can only select one file"), i18n("More than one file provided"));
             return;
         }
 
         /**
          * Logic of the next part of code (ends at "end multi relative urls").
          *
          * We allow for instance to be at "/" and insert '"home/foo/bar.txt" "boot/grub/menu.lst"'.
          * Why we need to support this ? Because we provide tree views, which aren't plain.
          *
          * Now, how does this logic work. It will get the first element on the list (with no filename),
          * following the previous example say "/home/foo" and set it as the top most url.
          *
          * After this, it will iterate over the rest of items and check if this URL (topmost url)
          * contains the url being iterated.
          *
          * As you might have guessed it will do "/home/foo" against "/boot/grub" (again stripping
          * filename), and a false will be returned. Then we upUrl the top most url, resulting in
          * "/home" against "/boot/grub", what will again return false, so we upUrl again. Now we
          * have "/" against "/boot/grub", what returns true for us, so we can say that the closest
          * common ancestor of both is "/".
          *
          * This example has been written for 2 urls, but this works for any number of urls.
          */
         if (!d->m_differentHierarchyLevelItemsEntered) { // avoid infinite recursion. running this
             int start = 0;
             QUrl topMostUrl;
             KIO::StatJob *statJob = nullptr;
             bool res = false;
 
             // we need to check for a valid first url, so in theory we only iterate one time over
             // this loop. However it can happen that the user did
             // "home/foo/nonexistantfile" "boot/grub/menu.lst", so we look for a good first
             // candidate.
             while (!res && start < locationEditCurrentTextList.count()) {
                 topMostUrl = locationEditCurrentTextList.at(start);
                 statJob = KIO::stat(topMostUrl, KIO::HideProgressInfo);
                 KJobWidgets::setWindow(statJob, this);
                 res = statJob->exec();
                 start++;
             }
 
             Q_ASSERT(statJob);
 
             // if this is not a dir, strip the filename. after this we have an existent and valid
             // dir (we stated correctly the file).
             if (!statJob->statResult().isDir()) {
                 topMostUrl = topMostUrl.adjusted(QUrl::RemoveFilename | QUrl::StripTrailingSlash);
             }
 
             // now the funny part. for the rest of filenames, go and look for the closest ancestor
             // of all them.
             for (int i = start; i < locationEditCurrentTextList.count(); ++i) {
                 QUrl currUrl = locationEditCurrentTextList.at(i);
                 KIO::StatJob *statJob = KIO::stat(currUrl, KIO::HideProgressInfo);
                 KJobWidgets::setWindow(statJob, this);
                 int res = statJob->exec();
                 if (res) {
                     // again, we don't care about filenames
                     if (!statJob->statResult().isDir()) {
                         currUrl = currUrl.adjusted(QUrl::RemoveFilename | QUrl::StripTrailingSlash);
                     }
 
                     // iterate while this item is contained on the top most url
                     while (!topMostUrl.matches(currUrl, QUrl::StripTrailingSlash) && !topMostUrl.isParentOf(currUrl)) {
                         topMostUrl = KIO::upUrl(topMostUrl);
                     }
                 }
             }
 
             // now recalculate all paths for them being relative in base of the top most url
             QStringList stringList;
             stringList.reserve(locationEditCurrentTextList.count());
             for (int i = 0; i < locationEditCurrentTextList.count(); ++i) {
                 Q_ASSERT(topMostUrl.isParentOf(locationEditCurrentTextList[i]));
                 QString relativePath = relativePathOrUrl(topMostUrl, locationEditCurrentTextList[i]);
                 stringList << escapeDoubleQuotes(std::move(relativePath));
             }
 
             d->m_ops->setUrl(topMostUrl, true);
             const bool signalsBlocked = d->m_locationEdit->lineEdit()->blockSignals(true);
             d->m_locationEdit->lineEdit()->setText(QStringLiteral("\"%1\"").arg(stringList.join(QStringLiteral("\" \""))));
             d->m_locationEdit->lineEdit()->blockSignals(signalsBlocked);
 
             d->m_differentHierarchyLevelItemsEntered = true;
             slotOk();
             return;
         }
         /**
          * end multi relative urls
          */
     } else if (!locationEditCurrentTextList.isEmpty()) {
         // if we are on file or files mode, and we have an absolute url written by
         // the user:
         //  * convert it to relative and call slotOk again if the protocol supports listing.
         //  * use the full url if the protocol doesn't support listing
         // This is because when using a protocol that supports listing we want to show the directory
         // the user just opened/saved from the next time they open the dialog, it makes sense usability wise.
         // If the protocol doesn't support listing (i.e. http:// ) the user would end up with the dialog
         // showing an "empty directory" which is bad usability wise.
         if (!locationEditCurrentText.isEmpty() && !onlyDirectoryMode
             && (Utils::isAbsoluteLocalPath(locationEditCurrentText) || containsProtocolSection(locationEditCurrentText))) {
             QUrl url = urlFromString(locationEditCurrentText);
             if (KProtocolManager::supportsListing(url)) {
                 QString fileName;
                 if (d->m_operationMode == Opening) {
                     KIO::StatJob *statJob = KIO::stat(url, KIO::HideProgressInfo);
                     KJobWidgets::setWindow(statJob, this);
                     int res = statJob->exec();
                     if (res) {
                         if (!statJob->statResult().isDir()) {
                             fileName = url.fileName();
                             url = url.adjusted(QUrl::RemoveFilename); // keeps trailing slash
                         } else {
                             Utils::appendSlashToPath(url);
                         }
                     }
                 } else {
                     const QUrl directory = url.adjusted(QUrl::RemoveFilename);
                     // Check if the folder exists
                     KIO::StatJob *statJob = KIO::stat(directory, KIO::HideProgressInfo);
                     KJobWidgets::setWindow(statJob, this);
                     int res = statJob->exec();
                     if (res) {
                         if (statJob->statResult().isDir()) {
                             url = url.adjusted(QUrl::StripTrailingSlash);
                             fileName = url.fileName();
                             url = url.adjusted(QUrl::RemoveFilename);
                         }
                     }
                 }
                 d->m_ops->setUrl(url, true);
                 const bool signalsBlocked = d->m_locationEdit->lineEdit()->blockSignals(true);
                 d->m_locationEdit->lineEdit()->setText(fileName);
                 d->m_locationEdit->lineEdit()->blockSignals(signalsBlocked);
                 slotOk();
                 return;
             } else {
                 locationEditCurrentTextList = {url};
             }
         }
     }
 
     // restore it
     d->m_differentHierarchyLevelItemsEntered = false;
 
     // locationEditCurrentTextList contains absolute paths
     // this is the general loop for the File and Files mode. Obviously we know
     // that the File mode will iterate only one time here
     QList<QUrl>::ConstIterator it = locationEditCurrentTextList.constBegin();
     bool filesInList = false;
     while (it != locationEditCurrentTextList.constEnd()) {
         QUrl url(*it);
 
         if (d->m_operationMode == Saving && !directoryMode) {
             d->appendExtension(url);
         }
 
         d->m_url = url;
         KIO::StatJob *statJob = KIO::stat(url, KIO::HideProgressInfo);
         KJobWidgets::setWindow(statJob, this);
         int res = statJob->exec();
 
         if (!KUrlAuthorized::authorizeUrlAction(QStringLiteral("open"), QUrl(), url)) {
             QString msg = KIO::buildErrorString(KIO::ERR_ACCESS_DENIED, d->m_url.toDisplayString());
             KMessageBox::error(this, msg);
             return;
         }
 
         // if we are on local mode, make sure we haven't got a remote base url
         if ((mode & KFile::LocalOnly) && !d->mostLocalUrl(d->m_url).isLocalFile()) {
             KMessageBox::error(this, i18n("You can only select local files"), i18n("Remote files not accepted"));
             return;
         }
 
         const auto &supportedSchemes = d->m_model->supportedSchemes();
         if (!supportedSchemes.isEmpty() && !supportedSchemes.contains(d->m_url.scheme())) {
             KMessageBox::error(this,
                                i18np("The selected URL uses an unsupported scheme. "
                                      "Please use the following scheme: %2",
                                      "The selected URL uses an unsupported scheme. "
                                      "Please use one of the following schemes: %2",
                                      supportedSchemes.size(),
                                      supportedSchemes.join(QLatin1String(", "))),
                                i18n("Unsupported URL scheme"));
             return;
         }
 
         // if we are given a folder when not on directory mode, let's get into it
         if (res && !directoryMode && statJob->statResult().isDir()) {
             // check if we were given more than one folder, in that case we don't know to which one
             // cd
             ++it;
             while (it != locationEditCurrentTextList.constEnd()) {
                 QUrl checkUrl(*it);
                 KIO::StatJob *checkStatJob = KIO::stat(checkUrl, KIO::HideProgressInfo);
                 KJobWidgets::setWindow(checkStatJob, this);
                 bool res = checkStatJob->exec();
                 if (res && checkStatJob->statResult().isDir()) {
                     KMessageBox::error(this,
                                        i18n("More than one folder has been selected and this dialog does not accept folders, so it is not possible to decide "
                                             "which one to enter. Please select only one folder to list it."),
                                        i18n("More than one folder provided"));
                     return;
                 } else if (res) {
                     filesInList = true;
                 }
                 ++it;
             }
             if (filesInList) {
                 KMessageBox::information(
                     this,
                     i18n("At least one folder and one file has been selected. Selected files will be ignored and the selected folder will be listed"),
                     i18n("Files and folders selected"));
             }
             d->m_ops->setUrl(url, true);
             const bool signalsBlocked = d->m_locationEdit->lineEdit()->blockSignals(true);
             d->m_locationEdit->lineEdit()->setText(QString());
             d->m_locationEdit->lineEdit()->blockSignals(signalsBlocked);
             return;
         } else if (res && onlyDirectoryMode && !statJob->statResult().isDir()) {
             // if we are given a file when on directory only mode, reject it
             return;
         } else if (!(mode & KFile::ExistingOnly) || res) {
             // if we don't care about ExistingOnly flag, add the file even if
             // it doesn't exist. If we care about it, don't add it to the list
             if (!onlyDirectoryMode || (res && statJob->statResult().isDir())) {
                 d->m_urlList << url;
             }
             filesInList = true;
         } else {
             KMessageBox::error(this, i18n("The file \"%1\" could not be found", url.toDisplayString(QUrl::PreferLocalFile)), i18n("Cannot open file"));
             return; // do not emit accepted() if we had ExistingOnly flag and stat failed
         }
 
         if ((d->m_operationMode == Saving) && d->m_confirmOverwrite && !d->toOverwrite(url)) {
             return;
         }
 
         ++it;
     }
 
     // if we have reached this point and we didn't return before, that is because
     // we want this dialog to be accepted
     Q_EMIT accepted();
 }
 
 void KFileWidget::accept()
 {
     d->m_inAccept = true;
 
     *lastDirectory() = d->m_ops->url();
     if (!d->m_fileClass.isEmpty()) {
         KRecentDirs::add(d->m_fileClass, d->m_ops->url().toString());
     }
 
     // clear the topmost item, we insert it as full path later on as item 1
     d->m_locationEdit->setItemText(0, QString());
 
     const QList<QUrl> list = selectedUrls();
     int atmost = d->m_locationEdit->maxItems(); // don't add more items than necessary
     for (const auto &url : list) {
         if (atmost-- == 0) {
             break;
         }
 
         // we strip the last slash (-1) because KUrlComboBox does that as well
         // when operating in file-mode. If we wouldn't , dupe-finding wouldn't
         // work.
         const QString file = url.toDisplayString(QUrl::StripTrailingSlash | QUrl::PreferLocalFile);
 
         // remove dupes
         for (int i = 1; i < d->m_locationEdit->count(); ++i) {
             if (d->m_locationEdit->itemText(i) == file) {
                 d->m_locationEdit->removeItem(i--);
                 break;
             }
         }
         // FIXME I don't think this works correctly when the KUrlComboBox has some default urls.
         // KUrlComboBox should provide a function to add an url and rotate the existing ones, keeping
         // track of maxItems, and we shouldn't be able to insert items as we please.
         d->m_locationEdit->insertItem(1, file);
     }
 
     d->writeViewConfig();
     d->saveRecentFiles();
 
     d->addToRecentDocuments();
 
     if (!(mode() & KFile::Files)) { // single selection
         Q_EMIT fileSelected(d->m_url);
     }
 
     d->m_ops->close();
 }
 
 void KFileWidgetPrivate::fileHighlighted(const KFileItem &i)
 {
     if ((m_locationEdit->hasFocus() && !m_locationEdit->currentText().isEmpty())) { // don't disturb
         return;
     }
 
     if (!i.isNull() && i.isDir() && !(m_ops->mode() & KFile::Directory)) {
         return;
     }
 
     const bool modified = m_locationEdit->lineEdit()->isModified();
 
     if (!(m_ops->mode() & KFile::Files)) {
         if (i.isNull()) {
             if (!modified) {
                 setLocationText(QUrl());
             }
             return;
         }
 
         m_url = i.url();
 
         if (!m_locationEdit->hasFocus()) { // don't disturb while editing
             setLocationText(m_url);
         }
 
         Q_EMIT q->fileHighlighted(m_url);
     } else {
         multiSelectionChanged();
         Q_EMIT q->selectionChanged();
     }
 
     m_locationEdit->lineEdit()->setModified(false);
 
     // When saving, and when double-click mode is being used, highlight the
     // filename after a file is single-clicked so the user has a chance to quickly
     // rename it if desired
     // Note that double-clicking will override this and overwrite regardless of
     // single/double click mouse setting (see slotViewDoubleClicked() )
     if (m_operationMode == KFileWidget::Saving) {
         m_locationEdit->setFocus();
     }
 }
 
 void KFileWidgetPrivate::fileSelected(const KFileItem &i)
 {
     if (!i.isNull() && i.isDir()) {
         return;
     }
 
     if (!(m_ops->mode() & KFile::Files)) {
         if (i.isNull()) {
             setLocationText(QUrl());
             return;
         }
         setLocationText(i.targetUrl());
     } else {
         multiSelectionChanged();
         Q_EMIT q->selectionChanged();
     }
 
     // Same as above in fileHighlighted(), but for single-click mode
     if (m_operationMode == KFileWidget::Saving) {
         m_locationEdit->setFocus();
     } else {
         q->slotOk();
     }
 }
 
 // I know it's slow to always iterate thru the whole filelist
 // (d->m_ops->selectedItems()), but what can we do?
 void KFileWidgetPrivate::multiSelectionChanged()
 {
     if (m_locationEdit->hasFocus() && !m_locationEdit->currentText().isEmpty()) { // don't disturb
         return;
     }
 
     const KFileItemList list = m_ops->selectedItems();
 
     if (list.isEmpty()) {
         setLocationText(QUrl());
         return;
     }
 
     setLocationText(list.targetUrlList());
 }
 
 void KFileWidgetPrivate::setDummyHistoryEntry(const QString &text, const QIcon &icon, bool usePreviousPixmapIfNull)
 {
     // Block m_locationEdit signals as setCurrentItem() will cause textChanged() to get
     // emitted, so slotLocationChanged() will be called. Make sure we don't clear the
     // KDirOperator's view-selection in there
     const QSignalBlocker blocker(m_locationEdit);
 
     bool dummyExists = m_dummyAdded;
 
     int cursorPosition = m_locationEdit->lineEdit()->cursorPosition();
 
     if (m_dummyAdded) {
         if (!icon.isNull()) {
             m_locationEdit->setItemIcon(0, icon);
             m_locationEdit->setItemText(0, text);
         } else {
             if (!usePreviousPixmapIfNull) {
                 m_locationEdit->setItemIcon(0, QPixmap());
             }
             m_locationEdit->setItemText(0, text);
         }
     } else {
         if (!text.isEmpty()) {
             if (!icon.isNull()) {
                 m_locationEdit->insertItem(0, icon, text);
             } else {
                 if (!usePreviousPixmapIfNull) {
                     m_locationEdit->insertItem(0, QPixmap(), text);
                 } else {
                     m_locationEdit->insertItem(0, text);
                 }
             }
             m_dummyAdded = true;
             dummyExists = true;
         }
     }
 
     if (dummyExists && !text.isEmpty()) {
         m_locationEdit->setCurrentIndex(0);
     }
 
     m_locationEdit->lineEdit()->setCursorPosition(cursorPosition);
 }
 
 void KFileWidgetPrivate::removeDummyHistoryEntry()
 {
     if (!m_dummyAdded) {
         return;
     }
 
     // Block m_locationEdit signals as setCurrentItem() will cause textChanged() to get
     // emitted, so slotLocationChanged() will be called. Make sure we don't clear the
     // KDirOperator's view-selection in there
     const QSignalBlocker blocker(m_locationEdit);
 
     if (m_locationEdit->count()) {
         m_locationEdit->removeItem(0);
     }
     m_locationEdit->setCurrentIndex(-1);
     m_dummyAdded = false;
 }
 
 void KFileWidgetPrivate::setLocationText(const QUrl &url)
 {
     if (!url.isEmpty()) {
         if (!url.isRelative()) {
             const QUrl directory = url.adjusted(QUrl::RemoveFilename);
             if (!directory.path().isEmpty()) {
                 q->setUrl(directory, false);
             } else {
                 q->setUrl(url, false);
             }
         }
 
         const QIcon mimeTypeIcon = QIcon::fromTheme(KIO::iconNameForUrl(url), QIcon::fromTheme(QStringLiteral("application-octet-stream")));
         setDummyHistoryEntry(escapeDoubleQuotes(url.fileName()), mimeTypeIcon);
     } else {
         removeDummyHistoryEntry();
     }
 
     if (m_operationMode == KFileWidget::Saving) {
         setNonExtSelection();
     }
 }
 
 static QString relativePathOrUrl(const QUrl &baseUrl, const QUrl &url)
 {
     if (baseUrl.isParentOf(url)) {
         const QString basePath(QDir::cleanPath(baseUrl.path()));
         QString relPath(QDir::cleanPath(url.path()));
         relPath.remove(0, basePath.length());
         if (relPath.startsWith(QLatin1Char('/'))) {
             relPath.remove(0, 1);
         }
         return relPath;
     } else {
         return url.toDisplayString();
     }
 }
 
 static QString escapeDoubleQuotes(QString &&path)
 {
     // First escape the escape character that we are using
     path.replace(QStringLiteral("\\"), QStringLiteral("\\\\"));
     // Second, escape the quotes
     path.replace(QStringLiteral("\""), QStringLiteral("\\\""));
     return path;
 }
 
 void KFileWidgetPrivate::initDirOpWidgets()
 {
     m_opsWidget = new QWidget(q);
     m_opsWidgetLayout = new QVBoxLayout(m_opsWidget);
     m_opsWidgetLayout->setContentsMargins(0, 0, 0, 0);
     m_opsWidgetLayout->setSpacing(0);
 
     m_model = new KFilePlacesModel(q);
 
     // Don't pass "startDir" (KFileWidget constructor 1st arg) to the
     // KUrlNavigator at this stage: it may also contain a file name which
     // should not get inserted in that form into the old-style navigation
     // bar history. Wait until the KIO::stat has been done later.
     //
     // The stat cannot be done before this point, bug 172678.
     m_urlNavigator = new KUrlNavigator(m_model, QUrl(), m_opsWidget); // d->m_toolbar);
     m_urlNavigator->setPlacesSelectorVisible(false);
 
     m_messageWidget = new KMessageWidget(q);
     m_messageWidget->setMessageType(KMessageWidget::Error);
     m_messageWidget->hide();
 
     m_ops = new KDirOperator(QUrl(), m_opsWidget);
     m_ops->installEventFilter(q);
     m_ops->setObjectName(QStringLiteral("KFileWidget::ops"));
     m_ops->setIsSaving(m_operationMode == KFileWidget::Saving);
     m_ops->setNewFileMenuSelectDirWhenAlreadyExist(true);
     m_ops->showOpenWithActions(true);
 
     q->connect(m_ops, &KDirOperator::urlEntered, q, [this](const QUrl &url) {
         urlEntered(url);
     });
     q->connect(m_ops, &KDirOperator::fileHighlighted, q, [this](const KFileItem &item) {
         fileHighlighted(item);
     });
     q->connect(m_ops, &KDirOperator::fileSelected, q, [this](const KFileItem &item) {
         fileSelected(item);
     });
     q->connect(m_ops, &KDirOperator::finishedLoading, q, [this]() {
         slotLoadingFinished();
     });
     q->connect(m_ops, &KDirOperator::keyEnterReturnPressed, q, [this]() {
         slotViewKeyEnterReturnPressed();
     });
     q->connect(m_ops, &KDirOperator::renamingFinished, q, [this](const QList<QUrl> &urls) {
         // Update file names in location text field after renaming selected files
         q->setSelectedUrls(urls);
     });
 
     m_ops->dirLister()->setAutoErrorHandlingEnabled(false);
     q->connect(m_ops->dirLister(), &KDirLister::jobError, q, [this](KIO::Job *job) {
         m_messageWidget->setText(job->errorString());
         m_messageWidget->animatedShow();
     });
 
     m_ops->setupMenu(KDirOperator::SortActions | KDirOperator::FileActions | KDirOperator::ViewActions);
 
     initToolbar();
 
     m_opsWidgetLayout->addWidget(m_toolbar);
     m_opsWidgetLayout->addWidget(m_urlNavigator);
     m_opsWidgetLayout->addWidget(m_messageWidget);
     m_opsWidgetLayout->addWidget(m_ops);
 }
 
 void KFileWidgetPrivate::initZoomWidget()
 {
     m_iconSizeSlider = new QSlider(q);
     m_iconSizeSlider->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Fixed);
     m_iconSizeSlider->setMinimumWidth(40);
     m_iconSizeSlider->setOrientation(Qt::Horizontal);
     m_iconSizeSlider->setMinimum(0);
     m_iconSizeSlider->setMaximum(m_stdIconSizes.size() - 1);
     m_iconSizeSlider->setSingleStep(1);
     m_iconSizeSlider->setPageStep(1);
     m_iconSizeSlider->setTickPosition(QSlider::TicksBelow);
 
     q->connect(m_iconSizeSlider, &QAbstractSlider::valueChanged, q, [this](int step) {
         slotIconSizeChanged(m_stdIconSizes[step]);
     });
 
     q->connect(m_iconSizeSlider, &QAbstractSlider::sliderMoved, q, [this](int step) {
         slotIconSizeSliderMoved(m_stdIconSizes[step]);
     });
 
     q->connect(m_ops, &KDirOperator::currentIconSizeChanged, q, [this](int iconSize) {
         slotDirOpIconSizeChanged(iconSize);
     });
 
 #if KIOFILEWIDGETS_BUILD_DEPRECATED_SINCE(5, 100)
     KActionCollection *coll = m_ops->actionCollection();
 #endif
 
     m_zoomOutAction = KStandardAction::create(
         KStandardAction::ZoomOut,
         q,
         [this]() {
             changeIconsSize(ZoomOut);
         },
         q);
 
 #if KIOFILEWIDGETS_BUILD_DEPRECATED_SINCE(5, 100)
     coll->addAction(QStringLiteral("zoom_out"), m_zoomOutAction);
 #else
     q->addAction(m_zoomOutAction);
 #endif
 
     m_zoomInAction = KStandardAction::create(
         KStandardAction::ZoomIn,
         q,
         [this]() {
             changeIconsSize(ZoomIn);
         },
         q);
 
 #if KIOFILEWIDGETS_BUILD_DEPRECATED_SINCE(5, 100)
     coll->addAction(QStringLiteral("zoom_in"), m_zoomInAction);
 #else
     q->addAction(m_zoomInAction);
 #endif
 }
 
 void KFileWidgetPrivate::initToolbar()
 {
     m_toolbar = new KToolBar(m_opsWidget, true);
     m_toolbar->setObjectName(QStringLiteral("KFileWidget::toolbar"));
     m_toolbar->setMovable(false);
 
     // add nav items to the toolbar
     //
     // NOTE:  The order of the button icons here differs from that
     // found in the file manager and web browser, but has been discussed
     // and agreed upon on the kde-core-devel mailing list:
     //
     // http://lists.kde.org/?l=kde-core-devel&m=116888382514090&w=2
 
 #if KIOFILEWIDGETS_BUILD_DEPRECATED_SINCE(5, 100)
     KActionCollection *coll = m_ops->actionCollection();
 #endif
 
     m_ops->action(KDirOperator::Up)
         ->setWhatsThis(i18n("<qt>Click this button to enter the parent folder.<br /><br />"
                             "For instance, if the current location is file:/home/konqi clicking this "
                             "button will take you to file:/home.</qt>"));
 
     m_ops->action(KDirOperator::Back)->setWhatsThis(i18n("Click this button to move backwards one step in the browsing history."));
     m_ops->action(KDirOperator::Forward)->setWhatsThis(i18n("Click this button to move forward one step in the browsing history."));
 
     m_ops->action(KDirOperator::Reload)->setWhatsThis(i18n("Click this button to reload the contents of the current location."));
     m_ops->action(KDirOperator::NewFolder)->setShortcuts(KStandardShortcut::createFolder());
     m_ops->action(KDirOperator::NewFolder)->setWhatsThis(i18n("Click this button to create a new folder."));
 
     m_togglePlacesPanelAction = new KToggleAction(i18n("Show Places Panel"), q);
 #if KIOFILEWIDGETS_BUILD_DEPRECATED_SINCE(5, 100)
     coll->addAction(QStringLiteral("togglePlacesPanel"), m_togglePlacesPanelAction);
 #else
     q->addAction(m_togglePlacesPanelAction);
 #endif
     m_togglePlacesPanelAction->setShortcut(QKeySequence(Qt::Key_F9));
     q->connect(m_togglePlacesPanelAction, &QAction::toggled, q, [this](bool show) {
         togglePlacesPanel(show);
     });
 
     m_toggleBookmarksAction = new KToggleAction(i18n("Show Bookmarks Button"), q);
 #if KIOFILEWIDGETS_BUILD_DEPRECATED_SINCE(5, 100)
     coll->addAction(QStringLiteral("toggleBookmarks"), m_toggleBookmarksAction);
 #else
     q->addAction(m_toggleBookmarksAction);
 #endif
     q->connect(m_toggleBookmarksAction, &QAction::toggled, q, [this](bool show) {
         toggleBookmarks(show);
     });
 
     // Build the settings menu
     KActionMenu *menu = new KActionMenu(QIcon::fromTheme(QStringLiteral("configure")), i18n("Options"), q);
 #if KIOFILEWIDGETS_BUILD_DEPRECATED_SINCE(5, 100)
     coll->addAction(QStringLiteral("extra menu"), menu);
 #else
     q->addAction(menu);
 #endif
     menu->setWhatsThis(
         i18n("<qt>This is the preferences menu for the file dialog. "
              "Various options can be accessed from this menu including: <ul>"
              "<li>how files are sorted in the list</li>"
              "<li>types of view, including icon and list</li>"
              "<li>showing of hidden files</li>"
              "<li>the Places panel</li>"
              "<li>file previews</li>"
              "<li>separating folders from files</li></ul></qt>"));
 
     menu->addAction(m_ops->action(KDirOperator::AllowExpansionInDetailsView));
     menu->addSeparator();
     menu->addAction(m_ops->action(KDirOperator::ShowHiddenFiles));
     menu->addAction(m_togglePlacesPanelAction);
     menu->addAction(m_toggleBookmarksAction);
     menu->addAction(m_ops->action(KDirOperator::ShowPreviewPanel));
 
     menu->setPopupMode(QToolButton::InstantPopup);
     q->connect(menu->menu(), &QMenu::aboutToShow, m_ops, &KDirOperator::updateSelectionDependentActions);
 
     m_bookmarkButton = new KActionMenu(QIcon::fromTheme(QStringLiteral("bookmarks")), i18n("Bookmarks"), q);
     m_bookmarkButton->setPopupMode(QToolButton::InstantPopup);
 #if KIOFILEWIDGETS_BUILD_DEPRECATED_SINCE(5, 100)
     coll->addAction(QStringLiteral("bookmark"), m_bookmarkButton);
 #else
     q->addAction(m_bookmarkButton);
 #endif
     m_bookmarkButton->setWhatsThis(
         i18n("<qt>This button allows you to bookmark specific locations. "
              "Click on this button to open the bookmark menu where you may add, "
              "edit or select a bookmark.<br /><br />"
              "These bookmarks are specific to the file dialog, but otherwise operate "
              "like bookmarks elsewhere in KDE.</qt>"));
 
     QWidget *midSpacer = new QWidget(q);
     midSpacer->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 
     m_toolbar->addAction(m_ops->action(KDirOperator::Back));
     m_toolbar->addAction(m_ops->action(KDirOperator::Forward));
     m_toolbar->addAction(m_ops->action(KDirOperator::Up));
     m_toolbar->addAction(m_ops->action(KDirOperator::Reload));
     m_toolbar->addSeparator();
     m_toolbar->addAction(m_ops->action(KDirOperator::ViewIconsView));
     m_toolbar->addAction(m_ops->action(KDirOperator::ViewCompactView));
     m_toolbar->addAction(m_ops->action(KDirOperator::ViewDetailsView));
     m_toolbar->addSeparator();
     m_toolbar->addAction(m_ops->action(KDirOperator::ShowPreview));
     m_toolbar->addAction(m_ops->action(KDirOperator::SortMenu));
     m_toolbar->addAction(m_bookmarkButton);
 
     m_toolbar->addWidget(midSpacer);
 
     initZoomWidget();
     m_toolbar->addAction(m_zoomOutAction);
     m_toolbar->addWidget(m_iconSizeSlider);
     m_toolbar->addAction(m_zoomInAction);
     m_toolbar->addSeparator();
 
     m_toolbar->addAction(m_ops->action(KDirOperator::NewFolder));
     m_toolbar->addAction(menu);
 
     m_toolbar->setToolButtonStyle(Qt::ToolButtonIconOnly);
     m_toolbar->setMovable(false);
 }
 
 void KFileWidgetPrivate::initLocationWidget()
 {
     m_locationLabel = new QLabel(i18n("&Name:"), q);
     m_locationEdit = new KUrlComboBox(KUrlComboBox::Files, true, q);
     m_locationEdit->installEventFilter(q);
     // Properly let the dialog be resized (to smaller). Otherwise we could have
     // huge dialogs that can't be resized to smaller (it would be as big as the longest
     // item in this combo box). (ereslibre)
     m_locationEdit->setSizeAdjustPolicy(QComboBox::AdjustToContentsOnFirstShow);
     q->connect(m_locationEdit, &KUrlComboBox::editTextChanged, q, [this](const QString &text) {
         slotLocationChanged(text);
     });
 
     updateLocationWhatsThis();
     m_locationLabel->setBuddy(m_locationEdit);
 
     KUrlCompletion *fileCompletionObj = new KUrlCompletion(KUrlCompletion::FileCompletion);
     m_locationEdit->setCompletionObject(fileCompletionObj);
     m_locationEdit->setAutoDeleteCompletionObject(true);
     q->connect(fileCompletionObj, &KUrlCompletion::match, q, [this](const QString &match) {
         fileCompletion(match);
     });
 
     q->connect(m_locationEdit, qOverload<const QString &>(&KUrlComboBox::returnPressed), q, [this](const QString &text) {
         locationAccepted(text);
     });
 }
 
 void KFileWidgetPrivate::initFilterWidget()
 {
     m_filterLabel = new QLabel(q);
     m_filterWidget = new KFileFilterCombo(q);
     updateFilterText();
     // Properly let the dialog be resized (to smaller). Otherwise we could have
     // huge dialogs that can't be resized to smaller (it would be as big as the longest
     // item in this combo box). (ereslibre)
     m_filterWidget->setSizeAdjustPolicy(QComboBox::AdjustToContentsOnFirstShow);
     m_filterLabel->setBuddy(m_filterWidget);
     q->connect(m_filterWidget, &KFileFilterCombo::filterChanged, q, [this]() {
         slotFilterChanged();
     });
 
     m_filterDelayTimer.setSingleShot(true);
     m_filterDelayTimer.setInterval(300);
     q->connect(m_filterWidget, &QComboBox::editTextChanged, &m_filterDelayTimer, qOverload<>(&QTimer::start));
     q->connect(&m_filterDelayTimer, &QTimer::timeout, q, [this]() {
         slotFilterChanged();
     });
 }
 
 void KFileWidgetPrivate::setLocationText(const QList<QUrl> &urlList)
 {
     const QUrl currUrl = m_ops->url();
 
     if (urlList.count() > 1) {
         QString urls;
         for (const QUrl &url : urlList) {
             urls += QStringLiteral("\"%1\" ").arg(escapeDoubleQuotes(relativePathOrUrl(currUrl, url)));
         }
         urls.chop(1);
 
         setDummyHistoryEntry(urls, QIcon(), false);
     } else if (urlList.count() == 1) {
         const QIcon mimeTypeIcon = QIcon::fromTheme(KIO::iconNameForUrl(urlList[0]), QIcon::fromTheme(QStringLiteral("application-octet-stream")));
         setDummyHistoryEntry(escapeDoubleQuotes(relativePathOrUrl(currUrl, urlList[0])), mimeTypeIcon);
     } else {
         removeDummyHistoryEntry();
     }
 
     if (m_operationMode == KFileWidget::Saving) {
         setNonExtSelection();
     }
 }
 
 void KFileWidgetPrivate::updateLocationWhatsThis()
 {
     const QString autocompletionWhatsThisText = i18n(
         "<qt>While typing in the text area, you may be presented "
         "with possible matches. "
         "This feature can be controlled by clicking with the right mouse button "
         "and selecting a preferred mode from the <b>Text Completion</b> menu.</qt>");
 
     QString whatsThisText;
     if (m_operationMode == KFileWidget::Saving) {
         whatsThisText = QLatin1String("<qt>") + i18n("This is the name to save the file as.") + autocompletionWhatsThisText;
     } else if (m_ops->mode() & KFile::Files) {
         whatsThisText = QLatin1String("<qt>")
             + i18n("This is the list of files to open. More than "
                    "one file can be specified by listing several "
                    "files, separated by spaces.")
             + autocompletionWhatsThisText;
     } else {
         whatsThisText = QLatin1String("<qt>") + i18n("This is the name of the file to open.") + autocompletionWhatsThisText;
     }
 
     m_locationLabel->setWhatsThis(whatsThisText);
     m_locationEdit->setWhatsThis(whatsThisText);
 }
 
 void KFileWidgetPrivate::initPlacesPanel()
 {
     if (m_placesDock) {
         return;
     }
 
     m_placesDock = new QDockWidget(i18nc("@title:window", "Places"), q);
     m_placesDock->setFeatures(QDockWidget::NoDockWidgetFeatures);
     m_placesDock->setTitleBarWidget(new KDEPrivate::KFileWidgetDockTitleBar(m_placesDock));
 
     m_placesView = new KFilePlacesView(m_placesDock);
     m_placesView->setModel(m_model);
     m_placesView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
 
     m_placesView->setObjectName(QStringLiteral("url bar"));
     QObject::connect(m_placesView, &KFilePlacesView::urlChanged, q, [this](const QUrl &url) {
         enterUrl(url);
     });
 
     QObject::connect(qobject_cast<KFilePlacesModel *>(m_placesView->model()), &KFilePlacesModel::errorMessage, q, [this](const QString &errorMessage) {
         m_messageWidget->setText(errorMessage);
         m_messageWidget->animatedShow();
     });
 
     // need to set the current url of the urlbar manually (not via urlEntered()
     // here, because the initial url of KDirOperator might be the same as the
     // one that will be set later (and then urlEntered() won't be emitted).
     // TODO: KDE5 ### REMOVE THIS when KDirOperator's initial URL (in the c'tor) is gone.
     m_placesView->setUrl(m_url);
 
     m_placesDock->setWidget(m_placesView);
     m_placesViewSplitter->insertWidget(0, m_placesDock);
 
     // initialize the size of the splitter
     m_placesViewWidth = m_configGroup.readEntry(SpeedbarWidth, m_placesView->sizeHint().width());
 
     // Needed for when the dialog is shown with the places panel initially hidden
     setPlacesViewSplitterSizes();
 
     QObject::connect(m_placesDock, &QDockWidget::visibilityChanged, q, [this](bool visible) {
         togglePlacesPanel(visible, m_placesDock);
     });
 }
 
 void KFileWidgetPrivate::setPlacesViewSplitterSizes()
 {
     if (m_placesViewWidth > 0) {
         QList<int> sizes = m_placesViewSplitter->sizes();
         sizes[0] = m_placesViewWidth;
         sizes[1] = q->width() - m_placesViewWidth - m_placesViewSplitter->handleWidth();
         m_placesViewSplitter->setSizes(sizes);
     }
 }
 
 void KFileWidgetPrivate::setLafBoxColumnWidth()
 {
     // In order to perfectly align the filename widget with KDirOperator's icon view
     // - m_placesViewWidth needs to account for the size of the splitter handle
     // - the m_lafBox grid layout spacing should only affect the label, but not the line edit
     const int adjustment = m_placesViewSplitter->handleWidth() - m_lafBox->horizontalSpacing();
     m_lafBox->setColumnMinimumWidth(0, m_placesViewWidth + adjustment);
 }
 
 void KFileWidgetPrivate::initGUI()
 {
     delete m_boxLayout; // deletes all sub layouts
 
     m_boxLayout = new QVBoxLayout(q);
     m_boxLayout->setContentsMargins(0, 0, 0, 0); // no additional margin to the already existing
 
     m_placesViewSplitter = new QSplitter(q);
     m_placesViewSplitter->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
     m_placesViewSplitter->setChildrenCollapsible(false);
     m_boxLayout->addWidget(m_placesViewSplitter);
 
     QObject::connect(m_placesViewSplitter, &QSplitter::splitterMoved, q, [this](int pos, int index) {
         placesViewSplitterMoved(pos, index);
     });
     m_placesViewSplitter->insertWidget(0, m_opsWidget);
 
     m_vbox = new QVBoxLayout();
     m_vbox->setContentsMargins(0, 0, 0, 0);
     m_boxLayout->addLayout(m_vbox);
 
     m_lafBox = new QGridLayout();
 
     m_lafBox->addWidget(m_locationLabel, 0, 0, Qt::AlignVCenter | Qt::AlignRight);
     m_lafBox->addWidget(m_locationEdit, 0, 1, Qt::AlignVCenter);
     m_lafBox->addWidget(m_okButton, 0, 2, Qt::AlignVCenter);
 
     m_lafBox->addWidget(m_filterLabel, 1, 0, Qt::AlignVCenter | Qt::AlignRight);
     m_lafBox->addWidget(m_filterWidget, 1, 1, Qt::AlignVCenter);
     m_lafBox->addWidget(m_cancelButton, 1, 2, Qt::AlignVCenter);
 
     m_lafBox->setColumnStretch(1, 4);
 
     m_vbox->addLayout(m_lafBox);
 
     // Add the "Automatically Select Extension" checkbox
     const int spacingHint = q->style()->pixelMetric(QStyle::PM_LayoutVerticalSpacing);
     m_vbox->addSpacing(spacingHint);
     m_vbox->addWidget(m_autoSelectExtCheckBox);
 
     q->setTabOrder(m_ops, m_autoSelectExtCheckBox);
     q->setTabOrder(m_autoSelectExtCheckBox, m_locationEdit);
     q->setTabOrder(m_locationEdit, m_filterWidget);
     q->setTabOrder(m_filterWidget, m_okButton);
     q->setTabOrder(m_okButton, m_cancelButton);
     q->setTabOrder(m_cancelButton, m_urlNavigator);
     q->setTabOrder(m_urlNavigator, m_ops);
 }
 
 void KFileWidgetPrivate::slotFilterChanged()
 {
     //     qDebug();
 
     m_filterDelayTimer.stop();
 
     QString filter = m_filterWidget->currentFilter();
     m_ops->clearFilter();
 
     if (filter.contains(QLatin1Char('/'))) {
         QStringList types = filter.split(QLatin1Char(' '), Qt::SkipEmptyParts);
         types.prepend(QStringLiteral("inode/directory"));
         m_ops->setMimeFilter(types);
     } else if (filter.contains(QLatin1Char('*')) || filter.contains(QLatin1Char('?')) || filter.contains(QLatin1Char('['))) {
         m_ops->setNameFilter(filter);
     } else {
         m_ops->setNameFilter(QLatin1Char('*') + filter.replace(QLatin1Char(' '), QLatin1Char('*')) + QLatin1Char('*'));
     }
 
     updateAutoSelectExtension();
 
     m_ops->updateDir();
 
     Q_EMIT q->filterChanged(filter);
 }
 
 void KFileWidget::setUrl(const QUrl &url, bool clearforward)
 {
     //     qDebug();
 
     d->m_ops->setUrl(url, clearforward);
 }
 
 // Protected
 void KFileWidgetPrivate::urlEntered(const QUrl &url)
 {
     //     qDebug();
 
     KUrlComboBox *pathCombo = m_urlNavigator->editor();
     if (pathCombo->count() != 0) { // little hack
         pathCombo->setUrl(url);
     }
 
     bool blocked = m_locationEdit->blockSignals(true);
     if (m_keepLocation) {
         const QUrl currentUrl = urlFromString(locationEditCurrentText());
         // iconNameForUrl will get the icon or fallback to a generic one
         m_locationEdit->setItemIcon(0, QIcon::fromTheme(KIO::iconNameForUrl(currentUrl)));
         // Preserve the text when clicking on the view (cf fileHighlighted)
         m_locationEdit->lineEdit()->setModified(true);
     }
 
     m_locationEdit->blockSignals(blocked);
 
     m_urlNavigator->setLocationUrl(url);
 
     // is triggered in ctor before completion object is set
     KUrlCompletion *completion = dynamic_cast<KUrlCompletion *>(m_locationEdit->completionObject());
     if (completion) {
         completion->setDir(url);
     }
 
     if (m_placesView) {
         m_placesView->setUrl(url);
     }
 
     m_messageWidget->hide();
 }
 
 void KFileWidgetPrivate::locationAccepted(const QString &url)
 {
     Q_UNUSED(url);
     //     qDebug();
     q->slotOk();
 }
 
 void KFileWidgetPrivate::enterUrl(const QUrl &url)
 {
     //     qDebug();
 
     // append '/' if needed: url combo does not add it
     // tokenize() expects it because it uses QUrl::adjusted(QUrl::RemoveFilename)
     QUrl u(url);
     Utils::appendSlashToPath(u);
     q->setUrl(u);
 
     // We need to check window()->focusWidget() instead of m_locationEdit->hasFocus
     // because when the window is showing up m_locationEdit
     // may still not have focus but it'll be the one that will have focus when the window
     // gets it and we don't want to steal its focus either
     if (q->window()->focusWidget() != m_locationEdit) {
         m_ops->setFocus();
     }
 }
 
 void KFileWidgetPrivate::enterUrl(const QString &url)
 {
     //     qDebug();
 
     enterUrl(urlFromString(KUrlCompletion::replacedPath(url, true, true)));
 }
 
 bool KFileWidgetPrivate::toOverwrite(const QUrl &url)
 {
     //     qDebug();
 
     KIO::StatJob *statJob = KIO::stat(url, KIO::HideProgressInfo);
     KJobWidgets::setWindow(statJob, q);
     bool res = statJob->exec();
 
     if (res) {
         int ret = KMessageBox::warningContinueCancel(q,
                                                      i18n("The file \"%1\" already exists. Do you wish to overwrite it?", url.fileName()),
                                                      i18n("Overwrite File?"),
                                                      KStandardGuiItem::overwrite(),
                                                      KStandardGuiItem::cancel(),
                                                      QString(),
                                                      KMessageBox::Notify | KMessageBox::Dangerous);
 
         if (ret != KMessageBox::Continue) {
             m_locationEdit->setFocus();
             setNonExtSelection();
 
             return false;
         }
         return true;
     }
 
     return true;
 }
 
 #if KIOFILEWIDGETS_BUILD_DEPRECATED_SINCE(5, 33)
 void KFileWidget::setSelection(const QString &url)
 {
     //     qDebug() << "setSelection " << url;
 
     if (url.isEmpty()) {
         return;
     }
 
     QUrl u = d->getCompleteUrl(url);
     if (!u.isValid()) {
         // Relative path was treated as URL, but it was found to be invalid.
         qWarning() << url << " is not a correct argument for setSelection!";
         return;
     }
 
     setSelectedUrl(urlFromString(url));
 }
 #endif
 
 void KFileWidget::setSelectedUrl(const QUrl &url)
 {
     // Honor protocols that do not support directory listing
     if (!url.isRelative() && !KProtocolManager::supportsListing(url)) {
         return;
     }
     d->setLocationText(url);
 }
 
 void KFileWidget::setSelectedUrls(const QList<QUrl> &urls)
 {
     if (urls.isEmpty()) {
         return;
     }
 
     // Honor protocols that do not support directory listing
     if (!urls[0].isRelative() && !KProtocolManager::supportsListing(urls[0])) {
         return;
     }
     d->setLocationText(urls);
 }
 
 void KFileWidgetPrivate::slotLoadingFinished()
 {
     const QString currentText = m_locationEdit->currentText();
     if (currentText.isEmpty()) {
         return;
     }
 
     m_ops->blockSignals(true);
     QUrl u(m_ops->url());
     if (currentText.startsWith(QLatin1Char('/'))) {
         u.setPath(currentText);
     } else {
         u.setPath(Utils::concatPaths(m_ops->url().path(), currentText));
     }
     m_ops->setCurrentItem(u);
     m_ops->blockSignals(false);
 }
 
 void KFileWidgetPrivate::fileCompletion(const QString &match)
 {
     //     qDebug();
 
     if (match.isEmpty() || m_locationEdit->currentText().contains(QLatin1Char('"'))) {
         return;
     }
 
     const QUrl url = urlFromString(match);
     const QIcon mimeTypeIcon = QIcon::fromTheme(KIO::iconNameForUrl(url), QIcon::fromTheme(QStringLiteral("application-octet-stream")));
     setDummyHistoryEntry(m_locationEdit->currentText(), mimeTypeIcon, !m_locationEdit->currentText().isEmpty());
 }
 
 void KFileWidgetPrivate::slotLocationChanged(const QString &text)
 {
     //     qDebug();
 
     m_locationEdit->lineEdit()->setModified(true);
 
     if (text.isEmpty() && m_ops->view()) {
         m_ops->view()->clearSelection();
     }
 
     if (text.isEmpty()) {
         removeDummyHistoryEntry();
     } else {
         setDummyHistoryEntry(text);
     }
 
     if (!m_locationEdit->lineEdit()->text().isEmpty()) {
         const QList<QUrl> urlList(tokenize(text));
         m_ops->setCurrentItems(urlList);
     }
 
     updateFilter();
 }
 
 QUrl KFileWidget::selectedUrl() const
 {
     //     qDebug();
 
     if (d->m_inAccept) {
         return d->m_url;
     } else {
         return QUrl();
     }
 }
 
 QList<QUrl> KFileWidget::selectedUrls() const
 {
     //     qDebug();
 
     QList<QUrl> list;
     if (d->m_inAccept) {
         if (d->m_ops->mode() & KFile::Files) {
             list = d->m_urlList;
         } else {
             list.append(d->m_url);
         }
     }
     return list;
 }
 
 QList<QUrl> KFileWidgetPrivate::tokenize(const QString &line) const
 {
     qCDebug(KIO_KFILEWIDGETS_FW) << "Tokenizing:" << line;
 
     QList<QUrl> urls;
     QUrl baseUrl(m_ops->url().adjusted(QUrl::RemoveFilename));
     Utils::appendSlashToPath(baseUrl);
 
     // A helper that creates, validates and appends a new url based
     // on the given filename.
     auto addUrl = [baseUrl, &urls](const QString &partial_name) {
         if (partial_name.trimmed().isEmpty()) {
             return;
         }
 
         // url could be absolute
         QUrl partial_url(partial_name);
         if (!partial_url.isValid()
             || partial_url.isRelative()
             // the text might look like a url scheme but not be a real one
             || (!partial_url.scheme().isEmpty() && (!partial_name.contains(QStringLiteral("://")) || !KProtocolInfo::isKnownProtocol(partial_url.scheme())))) {
             // We have to use setPath here, so that something like "test#file"
             // isn't interpreted to have path "test" and fragment "file".
             partial_url.clear();
             partial_url.setPath(partial_name);
         }
 
         // This returns QUrl(partial_name) for absolute URLs.
         // Otherwise, returns the concatenated url.
         if (partial_url.isRelative() || baseUrl.isParentOf(partial_url)) {
             partial_url = baseUrl.resolved(partial_url);
         }
 
         if (partial_url.isValid()) {
             urls.append(partial_url);
         } else {
             // This can happen in the first quote! (ex: ' "something here"')
             qCDebug(KIO_KFILEWIDGETS_FW) << "Discarding Invalid" << partial_url;
         }
     };
 
     // An iterative approach here where we toggle the "escape" flag
     // if we hit `\`. If we hit `"` and the escape flag is false,
     // we split
     QString partial_name;
     bool escape = false;
     for (int i = 0; i < line.length(); i++) {
         const QChar ch = line[i];
 
         // Handle any character previously escaped
         if (escape) {
             partial_name += ch;
             escape = false;
             continue;
         }
 
         // Handle escape start
         if (ch.toLatin1() == '\\') {
             escape = true;
             continue;
         }
 
         // Handle UNESCAPED quote (") since the above ifs are
         // dealing with the escaped ones
         if (ch.toLatin1() == '"') {
             addUrl(partial_name);
             partial_name.clear();
             continue;
         }
 
         // Any other character just append
         partial_name += ch;
     }
 
     // Handle the last item which is buffered in partial_name. This is
     // required for single-file selection dialogs since the name will not
     // be wrapped in quotes
     if (!partial_name.isEmpty()) {
         addUrl(partial_name);
         partial_name.clear();
     }
 
     return urls;
 }
 
 QString KFileWidget::selectedFile() const
 {
     //     qDebug();
 
     if (d->m_inAccept) {
         const QUrl url = d->mostLocalUrl(d->m_url);
         if (url.isLocalFile()) {
             return url.toLocalFile();
         } else {
             KMessageBox::error(const_cast<KFileWidget *>(this), i18n("You can only select local files."), i18n("Remote Files Not Accepted"));
         }
     }
     return QString();
 }
 
 QStringList KFileWidget::selectedFiles() const
 {
     //     qDebug();
 
     QStringList list;
 
     if (d->m_inAccept) {
         if (d->m_ops->mode() & KFile::Files) {
             const QList<QUrl> urls = d->m_urlList;
             for (const auto &u : urls) {
                 const QUrl url = d->mostLocalUrl(u);
                 if (url.isLocalFile()) {
                     list.append(url.toLocalFile());
                 }
             }
         }
 
         else { // single-selection mode
             if (d->m_url.isLocalFile()) {
                 list.append(d->m_url.toLocalFile());
             }
         }
     }
 
     return list;
 }
 
 QUrl KFileWidget::baseUrl() const
 {
     return d->m_ops->url();
 }
 
 void KFileWidget::resizeEvent(QResizeEvent *event)
 {
     QWidget::resizeEvent(event);
 
     if (d->m_placesDock) {
         // we don't want our places dock actually changing size when we resize
         // and qt doesn't make it easy to enforce such a thing with QSplitter
         d->setPlacesViewSplitterSizes();
     }
 }
 
 void KFileWidget::showEvent(QShowEvent *event)
 {
     if (!d->m_hasView) { // delayed view-creation
         Q_ASSERT(d);
         Q_ASSERT(d->m_ops);
         d->m_ops->setViewMode(KFile::Default);
         d->m_hasView = true;
 
         connect(d->m_ops->view(), &QAbstractItemView::doubleClicked, this, [this](const QModelIndex &index) {
             d->slotViewDoubleClicked(index);
         });
     }
     d->m_ops->clearHistory();
 
     QWidget::showEvent(event);
 }
 
 bool KFileWidget::eventFilter(QObject *watched, QEvent *event)
 {
     const bool res = QWidget::eventFilter(watched, event);
 
     QKeyEvent *keyEvent = dynamic_cast<QKeyEvent *>(event);
     if (!keyEvent) {
         return res;
     }
 
     const auto type = event->type();
     const auto key = keyEvent->key();
 
     if (watched == d->m_ops && type == QEvent::KeyPress && (key == Qt::Key_Return || key == Qt::Key_Enter)) {
         // ignore return events from the KDirOperator
         // they are not needed, activated is used to handle this case
         event->accept();
         return true;
     }
 
     return res;
 }
 
 void KFileWidget::setMode(KFile::Modes m)
 {
     //     qDebug();
 
     d->m_ops->setMode(m);
     if (d->m_ops->dirOnlyMode()) {
         d->m_filterWidget->setDefaultFilter(i18n("*|All Folders"));
     } else {
         d->m_filterWidget->setDefaultFilter(i18n("*|All Files"));
     }
 
     d->updateAutoSelectExtension();
 }
 
 KFile::Modes KFileWidget::mode() const
 {
     return d->m_ops->mode();
 }
 
 void KFileWidgetPrivate::readViewConfig()
 {
     m_ops->setViewConfig(m_configGroup);
     m_ops->readConfig(m_configGroup);
     KUrlComboBox *combo = m_urlNavigator->editor();
 
     KCompletion::CompletionMode cm =
         (KCompletion::CompletionMode)m_configGroup.readEntry(PathComboCompletionMode, static_cast<int>(KCompletion::CompletionPopup));
     if (cm != KCompletion::CompletionPopup) {
         combo->setCompletionMode(cm);
     }
 
     cm = (KCompletion::CompletionMode)m_configGroup.readEntry(LocationComboCompletionMode, static_cast<int>(KCompletion::CompletionPopup));
     if (cm != KCompletion::CompletionPopup) {
         m_locationEdit->setCompletionMode(cm);
     }
 
     // Show or don't show the places panel
     togglePlacesPanel(m_configGroup.readEntry(ShowSpeedbar, true));
 
     // show or don't show the bookmarks
     toggleBookmarks(m_configGroup.readEntry(ShowBookmarks, false));
 
     // does the user want Automatically Select Extension?
     m_autoSelectExtChecked = m_configGroup.readEntry(AutoSelectExtChecked, DefaultAutoSelectExtChecked);
     updateAutoSelectExtension();
 
     // should the URL navigator use the breadcrumb navigation?
     m_urlNavigator->setUrlEditable(!m_configGroup.readEntry(BreadcrumbNavigation, true));
 
     // should the URL navigator show the full path?
     m_urlNavigator->setShowFullPath(m_configGroup.readEntry(ShowFullPath, false));
 
     int w1 = q->minimumSize().width();
     int w2 = m_toolbar->sizeHint().width();
     if (w1 < w2) {
         q->setMinimumWidth(w2);
     }
 }
 
 void KFileWidgetPrivate::writeViewConfig()
 {
     // these settings are global settings; ALL instances of the file dialog
     // should reflect them.
     // There is no way to tell KFileOperator::writeConfig() to write to
     // kdeglobals so we write settings to a temporary config group then copy
     // them all to kdeglobals
     KConfig tmp(QString(), KConfig::SimpleConfig);
     KConfigGroup tmpGroup(&tmp, ConfigGroup);
 
     KUrlComboBox *pathCombo = m_urlNavigator->editor();
     // saveDialogSize( tmpGroup, KConfigGroup::Persistent | KConfigGroup::Global );
     tmpGroup.writeEntry(PathComboCompletionMode, static_cast<int>(pathCombo->completionMode()));
     tmpGroup.writeEntry(LocationComboCompletionMode, static_cast<int>(m_locationEdit->completionMode()));
 
     const bool showPlacesPanel = m_placesDock && !m_placesDock->isHidden();
     tmpGroup.writeEntry(ShowSpeedbar, showPlacesPanel);
     if (m_placesViewWidth > 0) {
         tmpGroup.writeEntry(SpeedbarWidth, m_placesViewWidth);
     }
 
     tmpGroup.writeEntry(ShowBookmarks, m_bookmarkHandler != nullptr);
     tmpGroup.writeEntry(AutoSelectExtChecked, m_autoSelectExtChecked);
     tmpGroup.writeEntry(BreadcrumbNavigation, !m_urlNavigator->isUrlEditable());
     tmpGroup.writeEntry(ShowFullPath, m_urlNavigator->showFullPath());
 
     m_ops->writeConfig(tmpGroup);
 
     // Copy saved settings to kdeglobals
     tmpGroup.copyTo(&m_configGroup, KConfigGroup::Persistent | KConfigGroup::Global);
 }
 
 void KFileWidgetPrivate::readRecentFiles()
 {
     //     qDebug();
 
     const bool oldState = m_locationEdit->blockSignals(true);
     m_locationEdit->setMaxItems(m_configGroup.readEntry(RecentFilesNumber, DefaultRecentURLsNumber));
     m_locationEdit->setUrls(m_configGroup.readPathEntry(RecentFiles, QStringList()), KUrlComboBox::RemoveBottom);
     m_locationEdit->setCurrentIndex(-1);
     m_locationEdit->blockSignals(oldState);
 
     KUrlComboBox *combo = m_urlNavigator->editor();
     combo->setUrls(m_configGroup.readPathEntry(RecentURLs, QStringList()), KUrlComboBox::RemoveTop);
     combo->setMaxItems(m_configGroup.readEntry(RecentURLsNumber, DefaultRecentURLsNumber));
     combo->setUrl(m_ops->url());
     // since we delayed this moment, initialize the directory of the completion object to
     // our current directory (that was very probably set on the constructor)
     KUrlCompletion *completion = dynamic_cast<KUrlCompletion *>(m_locationEdit->completionObject());
     if (completion) {
         completion->setDir(m_ops->url());
     }
 }
 
 void KFileWidgetPrivate::saveRecentFiles()
 {
     //     qDebug();
     m_configGroup.writePathEntry(RecentFiles, m_locationEdit->urls());
 
     KUrlComboBox *pathCombo = m_urlNavigator->editor();
     m_configGroup.writePathEntry(RecentURLs, pathCombo->urls());
 }
 
 QPushButton *KFileWidget::okButton() const
 {
     return d->m_okButton;
 }
 
 QPushButton *KFileWidget::cancelButton() const
 {
     return d->m_cancelButton;
 }
 
 // Called by KFileDialog
 void KFileWidget::slotCancel()
 {
     d->writeViewConfig();
     d->m_ops->close();
 }
 
 void KFileWidget::setKeepLocation(bool keep)
 {
     d->m_keepLocation = keep;
 }
 
 bool KFileWidget::keepsLocation() const
 {
     return d->m_keepLocation;
 }
 
 void KFileWidget::setOperationMode(OperationMode mode)
 {
     //     qDebug();
 
     d->m_operationMode = mode;
     d->m_keepLocation = (mode == Saving);
     d->m_filterWidget->setEditable(!d->m_hasDefaultFilter || mode != Saving);
     if (mode == Opening) {
         // don't use KStandardGuiItem::open() here which has trailing ellipsis!
         d->m_okButton->setText(i18n("&Open"));
         d->m_okButton->setIcon(QIcon::fromTheme(QStringLiteral("document-open")));
         // hide the new folder actions...usability team says they shouldn't be in open file dialog
         d->m_ops->action(KDirOperator::NewFolder)->setEnabled(false);
         d->m_toolbar->removeAction(d->m_ops->action(KDirOperator::NewFolder));
     } else if (mode == Saving) {
         KGuiItem::assign(d->m_okButton, KStandardGuiItem::save());
         d->setNonExtSelection();
     } else {
         KGuiItem::assign(d->m_okButton, KStandardGuiItem::ok());
     }
     d->updateLocationWhatsThis();
     d->updateAutoSelectExtension();
 
     if (d->m_ops) {
         d->m_ops->setIsSaving(mode == Saving);
     }
     d->updateFilterText();
 }
 
 KFileWidget::OperationMode KFileWidget::operationMode() const
 {
     return d->m_operationMode;
 }
 
 void KFileWidgetPrivate::slotAutoSelectExtClicked()
 {
     //     qDebug() << "slotAutoSelectExtClicked(): "
     //                          << m_autoSelectExtCheckBox->isChecked() << endl;
 
     // whether the _user_ wants it on/off
     m_autoSelectExtChecked = m_autoSelectExtCheckBox->isChecked();
 
     // update the current filename's extension
     updateLocationEditExtension(m_extension /* extension hasn't changed */);
 }
 
 void KFileWidgetPrivate::placesViewSplitterMoved(int pos, int index)
 {
     //     qDebug();
 
     // we need to record the size of the splitter when the splitter changes size
     // so we can keep the places box the right size!
     if (m_placesDock && index == 1) {
         m_placesViewWidth = pos;
         //         qDebug() << "setting m_lafBox minwidth to" << m_placesViewWidth;
         setLafBoxColumnWidth();
     }
 }
 
 void KFileWidgetPrivate::activateUrlNavigator()
 {
     //     qDebug();
 
     QLineEdit *lineEdit = m_urlNavigator->editor()->lineEdit();
 
     // If the text field currently has focus and everything is selected,
     // pressing the keyboard shortcut returns the whole thing to breadcrumb mode
     if (m_urlNavigator->isUrlEditable() && lineEdit->hasFocus() && lineEdit->selectedText() == lineEdit->text()) {
         m_urlNavigator->setUrlEditable(false);
     } else {
         m_urlNavigator->setUrlEditable(true);
         m_urlNavigator->setFocus();
         lineEdit->selectAll();
     }
 }
 
 void KFileWidgetPrivate::slotDirOpIconSizeChanged(int size)
 {
     auto beginIt = m_stdIconSizes.cbegin();
     auto endIt = m_stdIconSizes.cend();
     auto it = std::lower_bound(beginIt, endIt, size);
     const int sliderStep = it != endIt ? it - beginIt : 0;
     m_iconSizeSlider->setValue(sliderStep);
     m_zoomOutAction->setDisabled(it == beginIt);
     m_zoomInAction->setDisabled(it == (endIt - 1));
 }
 
 void KFileWidgetPrivate::changeIconsSize(ZoomState zoom)
 {
     int step = m_iconSizeSlider->value();
 
     if (zoom == ZoomOut) {
         if (step == 0) {
             return;
         }
         --step;
     } else { // ZoomIn
         if (step == static_cast<int>(m_stdIconSizes.size() - 1)) {
             return;
         }
         ++step;
     }
 
     m_iconSizeSlider->setValue(step);
     slotIconSizeSliderMoved(m_stdIconSizes[step]);
 }
 
 void KFileWidgetPrivate::slotIconSizeChanged(int _value)
 {
     m_ops->setIconSize(_value);
     m_iconSizeSlider->setToolTip(i18n("Icon size: %1 pixels", _value));
 }
 
 void KFileWidgetPrivate::slotIconSizeSliderMoved(int size)
 {
     // Force this to be called in case this slot is called first on the
     // slider move.
     slotIconSizeChanged(size);
 
     QPoint global(m_iconSizeSlider->rect().topLeft());
     global.ry() += m_iconSizeSlider->height() / 2;
     QHelpEvent toolTipEvent(QEvent::ToolTip, QPoint(0, 0), m_iconSizeSlider->mapToGlobal(global));
     QApplication::sendEvent(m_iconSizeSlider, &toolTipEvent);
 }
 
 void KFileWidgetPrivate::slotViewDoubleClicked(const QModelIndex &index)
 {
     // double clicking to save should only work on files
     if (m_operationMode == KFileWidget::Saving && index.isValid() && m_ops->selectedItems().constFirst().isFile()) {
         q->slotOk();
     }
 }
 
 void KFileWidgetPrivate::slotViewKeyEnterReturnPressed()
 {
     // an enter/return event occurred in the view
     // when we are saving one file and there is no selection in the view (otherwise we get an activated event)
     if (m_operationMode == KFileWidget::Saving && (m_ops->mode() & KFile::File) && m_ops->selectedItems().isEmpty()) {
         q->slotOk();
     }
 }
 
 static QString getExtensionFromPatternList(const QStringList &patternList)
 {
     //     qDebug();
 
     QString ret;
     //     qDebug() << "\tgetExtension " << patternList;
 
     QStringList::ConstIterator patternListEnd = patternList.end();
     for (QStringList::ConstIterator it = patternList.begin(); it != patternListEnd; ++it) {
         //         qDebug() << "\t\ttry: \'" << (*it) << "\'";
 
         // is this pattern like "*.BMP" rather than useless things like:
         //
         // README
         // *.
         // *.*
         // *.JP*G
         // *.JP?
         // *.[Jj][Pp][Gg]
         if ((*it).startsWith(QLatin1String("*.")) && (*it).length() > 2 && (*it).indexOf(QLatin1Char('*'), 2) < 0 && (*it).indexOf(QLatin1Char('?'), 2) < 0
             && (*it).indexOf(QLatin1Char('['), 2) < 0 && (*it).indexOf(QLatin1Char(']'), 2) < 0) {
             ret = (*it).mid(1);
             break;
         }
     }
 
     return ret;
 }
 
 static QString stripUndisplayable(const QString &string)
 {
     QString ret = string;
 
     ret.remove(QLatin1Char(':'));
     ret = KLocalizedString::removeAcceleratorMarker(ret);
 
     return ret;
 }
 
 // QString KFileWidget::currentFilterExtension()
 //{
 //    return d->m_extension;
 //}
 
 void KFileWidgetPrivate::updateAutoSelectExtension()
 {
     if (!m_autoSelectExtCheckBox) {
         return;
     }
 
     QMimeDatabase db;
     //
     // Figure out an extension for the Automatically Select Extension thing
     // (some Windows users apparently don't know what to do when confronted
     // with a text file called "COPYING" but do know what to do with
     // COPYING.txt ...)
     //
 
     //     qDebug() << "Figure out an extension: ";
     QString lastExtension = m_extension;
     m_extension.clear();
 
     // Automatically Select Extension is only valid if the user is _saving_ a _file_
     if ((m_operationMode == KFileWidget::Saving) && (m_ops->mode() & KFile::File)) {
         //
         // Get an extension from the filter
         //
 
         QString filter = m_filterWidget->currentFilter();
         if (!filter.isEmpty()) {
             // if the currently selected filename already has an extension which
             // is also included in the currently allowed extensions, keep it
             // otherwise use the default extension
             QString currentExtension = db.suffixForFileName(locationEditCurrentText());
             if (currentExtension.isEmpty()) {
                 currentExtension = locationEditCurrentText().section(QLatin1Char('.'), -1, -1);
             }
             // qDebug() << "filter:" << filter << "locationEdit:" << locationEditCurrentText() << "currentExtension:" << currentExtension;
 
             QString defaultExtension;
             QStringList extensionList;
 
             // e.g. "*.cpp"
             if (filter.indexOf(QLatin1Char('/')) < 0) {
                 extensionList = filter.split(QLatin1Char(' '), Qt::SkipEmptyParts);
                 defaultExtension = getExtensionFromPatternList(extensionList);
             }
             // e.g. "text/html"
             else {
                 QMimeType mime = db.mimeTypeForName(filter);
                 if (mime.isValid()) {
                     extensionList = mime.globPatterns();
                     defaultExtension = mime.preferredSuffix();
                     if (!defaultExtension.isEmpty()) {
                         defaultExtension.prepend(QLatin1Char('.'));
                     }
                 }
             }
 
             if ((!currentExtension.isEmpty() && extensionList.contains(QLatin1String("*.") + currentExtension))
                 || filter == QLatin1String("application/octet-stream")) {
                 m_extension = QLatin1Char('.') + currentExtension;
             } else {
                 m_extension = defaultExtension;
             }
 
             // qDebug() << "List:" << extensionList << "auto-selected extension:" << m_extension;
         }
 
         //
         // GUI: checkbox
         //
 
         QString whatsThisExtension;
         if (!m_extension.isEmpty()) {
             // remember: sync any changes to the string with below
             m_autoSelectExtCheckBox->setText(i18n("Automatically select filename e&xtension (%1)", m_extension));
             whatsThisExtension = i18n("the extension <b>%1</b>", m_extension);
 
             m_autoSelectExtCheckBox->setEnabled(true);
             m_autoSelectExtCheckBox->setChecked(m_autoSelectExtChecked);
         } else {
             // remember: sync any changes to the string with above
             m_autoSelectExtCheckBox->setText(i18n("Automatically select filename e&xtension"));
             whatsThisExtension = i18n("a suitable extension");
 
             m_autoSelectExtCheckBox->setChecked(false);
             m_autoSelectExtCheckBox->setEnabled(false);
         }
 
         const QString locationLabelText = stripUndisplayable(m_locationLabel->text());
         m_autoSelectExtCheckBox->setWhatsThis(QLatin1String("<qt>")
                                               + i18n("This option enables some convenient features for "
                                                      "saving files with extensions:<br />"
                                                      "<ol>"
                                                      "<li>Any extension specified in the <b>%1</b> text "
                                                      "area will be updated if you change the file type "
                                                      "to save in.<br />"
                                                      "<br /></li>"
                                                      "<li>If no extension is specified in the <b>%2</b> "
                                                      "text area when you click "
                                                      "<b>Save</b>, %3 will be added to the end of the "
                                                      "filename (if the filename does not already exist). "
                                                      "This extension is based on the file type that you "
                                                      "have chosen to save in.<br />"
                                                      "<br />"
                                                      "If you do not want KDE to supply an extension for the "
                                                      "filename, you can either turn this option off or you "
                                                      "can suppress it by adding a period (.) to the end of "
                                                      "the filename (the period will be automatically "
                                                      "removed)."
                                                      "</li>"
                                                      "</ol>"
                                                      "If unsure, keep this option enabled as it makes your "
                                                      "files more manageable.",
                                                      locationLabelText,
                                                      locationLabelText,
                                                      whatsThisExtension)
                                               + QLatin1String("</qt>"));
 
         m_autoSelectExtCheckBox->show();
 
         // update the current filename's extension
         updateLocationEditExtension(lastExtension);
     }
     // Automatically Select Extension not valid
     else {
         m_autoSelectExtCheckBox->setChecked(false);
         m_autoSelectExtCheckBox->hide();
     }
 }
 
 // Updates the extension of the filename specified in d->m_locationEdit if the
 // Automatically Select Extension feature is enabled.
 // (this prevents you from accidentally saving "file.kwd" as RTF, for example)
 void KFileWidgetPrivate::updateLocationEditExtension(const QString &lastExtension)
 {
     if (!m_autoSelectExtCheckBox->isChecked() || m_extension.isEmpty()) {
         return;
     }
 
     const QString urlStr = locationEditCurrentText();
     if (urlStr.isEmpty()) {
         return;
     }
 
     const int fileNameOffset = urlStr.lastIndexOf(QLatin1Char('/')) + 1;
     QStringView fileName = QStringView(urlStr).mid(fileNameOffset);
 
     const int dot = fileName.lastIndexOf(QLatin1Char('.'));
     const int len = fileName.length();
     if (dot > 0 && // has an extension already and it's not a hidden file
                    // like ".hidden" (but we do accept ".hidden.ext")
         dot != len - 1 // and not deliberately suppressing extension
     ) {
         const QUrl url = getCompleteUrl(urlStr);
         //     qDebug() << "updateLocationEditExtension (" << url << ")";
         // exists?
         KIO::StatJob *statJob = KIO::stat(url, KIO::HideProgressInfo);
         KJobWidgets::setWindow(statJob, q);
         bool result = statJob->exec();
         if (result) {
             //             qDebug() << "\tfile exists";
 
             if (statJob->statResult().isDir()) {
                 //                 qDebug() << "\tisDir - won't alter extension";
                 return;
             }
 
             // --- fall through ---
         }
 
         //
         // try to get rid of the current extension
         //
 
         // catch "double extensions" like ".tar.gz"
         if (!lastExtension.isEmpty() && fileName.endsWith(lastExtension)) {
             fileName.chop(lastExtension.length());
         } else if (!m_extension.isEmpty() && fileName.endsWith(m_extension)) {
             fileName.chop(m_extension.length());
         } else { // can only handle "single extensions"
             fileName.truncate(dot);
         }
 
         // add extension
         const QString newText = QStringView(urlStr).left(fileNameOffset) + fileName + m_extension;
         if (newText != locationEditCurrentText()) {
             m_locationEdit->setItemText(m_locationEdit->currentIndex(), newText);
             m_locationEdit->lineEdit()->setModified(true);
         }
     }
 }
 
 QString KFileWidgetPrivate::findMatchingFilter(const QString &filter, const QString &filename) const
 {
     // e.g.: '*.foo *.bar|Foo type' -> '*.foo', '*.bar'
     const QStringList patterns = filter.left(filter.indexOf(QLatin1Char('|'))).split(QLatin1Char(' '), Qt::SkipEmptyParts);
 
     QRegularExpression rx;
     for (const QString &p : patterns) {
         rx.setPattern(QRegularExpression::wildcardToRegularExpression(p));
         if (rx.match(filename).hasMatch()) {
             return p;
         }
     }
     return QString();
 }
 
 // Updates the filter if the extension of the filename specified in d->m_locationEdit is changed
 // (this prevents you from accidentally saving "file.kwd" as RTF, for example)
 void KFileWidgetPrivate::updateFilter()
 {
     //     qDebug();
 
     if ((m_operationMode == KFileWidget::Saving) && (m_ops->mode() & KFile::File)) {
         QString urlStr = locationEditCurrentText();
         if (urlStr.isEmpty()) {
             return;
         }
 
         if (m_filterWidget->isMimeFilter()) {
             QMimeDatabase db;
             QMimeType mime = db.mimeTypeForFile(urlStr, QMimeDatabase::MatchExtension);
             if (mime.isValid() && !mime.isDefault()) {
                 if (m_filterWidget->currentFilter() != mime.name() && m_filterWidget->filters().indexOf(mime.name()) != -1) {
                     m_filterWidget->setCurrentFilter(mime.name());
                 }
             }
         } else {
             QString filename = urlStr.mid(urlStr.lastIndexOf(QLatin1Char('/')) + 1); // only filename
             // accept any match to honor the user's selection; see later code handling the "*" match
             if (!findMatchingFilter(m_filterWidget->currentFilter(), filename).isEmpty()) {
                 return;
             }
             const QStringList list = m_filterWidget->filters();
             for (const QString &filter : list) {
                 QString match = findMatchingFilter(filter, filename);
                 if (!match.isEmpty()) {
                     if (match != QLatin1String("*")) { // never match the catch-all filter
                         m_filterWidget->setCurrentFilter(filter);
                     }
                     return; // do not repeat, could match a later filter
                 }
             }
         }
     }
 }
 
 // applies only to a file that doesn't already exist
 void KFileWidgetPrivate::appendExtension(QUrl &url)
 {
     //     qDebug();
 
     if (!m_autoSelectExtCheckBox->isChecked() || m_extension.isEmpty()) {
         return;
     }
 
     QString fileName = url.fileName();
     if (fileName.isEmpty()) {
         return;
     }
 
     //     qDebug() << "appendExtension(" << url << ")";
 
     const int len = fileName.length();
     const int dot = fileName.lastIndexOf(QLatin1Char('.'));
 
     const bool suppressExtension = (dot == len - 1);
     const bool unspecifiedExtension = !fileName.endsWith(m_extension);
 
     // don't KIO::Stat if unnecessary
     if (!(suppressExtension || unspecifiedExtension)) {
         return;
     }
 
     // exists?
     KIO::StatJob *statJob = KIO::stat(url, KIO::HideProgressInfo);
     KJobWidgets::setWindow(statJob, q);
     bool res = statJob->exec();
     if (res) {
         //         qDebug() << "\tfile exists - won't append extension";
         return;
     }
 
     // suppress automatically append extension?
     if (suppressExtension) {
         //
         // Strip trailing dot
         // This allows lazy people to have m_autoSelectExtCheckBox->isChecked
         // but don't want a file extension to be appended
         // e.g. "README." will make a file called "README"
         //
         // If you really want a name like "README.", then type "README.."
         // and the trailing dot will be removed (or just stop being lazy and
         // turn off this feature so that you can type "README.")
         //
         //         qDebug() << "\tstrip trailing dot";
         QString path = url.path();
         path.chop(1);
         url.setPath(path);
     }
     // evilmatically append extension :) if the user hasn't specified one
     else if (unspecifiedExtension) {
         //         qDebug() << "\tappending extension \'" << m_extension << "\'...";
         url = url.adjusted(QUrl::RemoveFilename); // keeps trailing slash
         url.setPath(url.path() + fileName + m_extension);
         //         qDebug() << "\tsaving as \'" << url << "\'";
     }
 }
 
 // adds the selected files/urls to 'recent documents'
 void KFileWidgetPrivate::addToRecentDocuments()
 {
     int m = m_ops->mode();
     int atmost = KRecentDocument::maximumItems();
     // don't add more than we need. KRecentDocument::add() is pretty slow
 
     if (m & KFile::LocalOnly) {
         const QStringList files = q->selectedFiles();
         QStringList::ConstIterator it = files.begin();
         for (; it != files.end() && atmost > 0; ++it) {
             KRecentDocument::add(QUrl::fromLocalFile(*it));
             atmost--;
         }
     }
 
     else { // urls
         const QList<QUrl> urls = q->selectedUrls();
         QList<QUrl>::ConstIterator it = urls.begin();
         for (; it != urls.end() && atmost > 0; ++it) {
             if ((*it).isValid()) {
                 KRecentDocument::add(*it);
                 atmost--;
             }
         }
     }
 }
 
 KUrlComboBox *KFileWidget::locationEdit() const
 {
     return d->m_locationEdit;
 }
 
 KFileFilterCombo *KFileWidget::filterWidget() const
 {
     return d->m_filterWidget;
 }
 
 #if KIOFILEWIDGETS_BUILD_DEPRECATED_SINCE(5, 100)
 KActionCollection *KFileWidget::actionCollection() const
 {
     return d->m_ops->actionCollection();
 }
 #endif
 
 void KFileWidgetPrivate::togglePlacesPanel(bool show, QObject *sender)
 {
     if (show) {
         initPlacesPanel();
         m_placesDock->show();
         setLafBoxColumnWidth();
 
         // check to see if they have a home item defined, if not show the home button
         QUrl homeURL;
         homeURL.setPath(QDir::homePath());
         KFilePlacesModel *model = static_cast<KFilePlacesModel *>(m_placesView->model());
         for (int rowIndex = 0; rowIndex < model->rowCount(); rowIndex++) {
             QModelIndex index = model->index(rowIndex, 0);
             QUrl url = model->url(index);
 
             if (homeURL.matches(url, QUrl::StripTrailingSlash)) {
                 m_toolbar->removeAction(m_ops->action(KDirOperator::Home));
                 break;
             }
         }
     } else {
         if (sender == m_placesDock && m_placesDock && m_placesDock->isVisibleTo(q)) {
             // we didn't *really* go away! the dialog was simply hidden or
             // we changed virtual desktops or ...
             return;
         }
 
         if (m_placesDock) {
             m_placesDock->hide();
         }
 
         QAction *homeAction = m_ops->action(KDirOperator::Home);
         QAction *reloadAction = m_ops->action(KDirOperator::Reload);
         if (!m_toolbar->actions().contains(homeAction)) {
             m_toolbar->insertAction(reloadAction, homeAction);
         }
 
         // reset the lafbox to not follow the width of the splitter
         m_lafBox->setColumnMinimumWidth(0, 0);
     }
 
     m_togglePlacesPanelAction->setChecked(show);
 
     // if we don't show the places panel, at least show the places menu
     m_urlNavigator->setPlacesSelectorVisible(!show);
 }
 
 void KFileWidgetPrivate::toggleBookmarks(bool show)
 {
     if (show) {
         if (m_bookmarkHandler) {
             return;
         }
         m_bookmarkHandler = new KFileBookmarkHandler(q);
         q->connect(m_bookmarkHandler, &KFileBookmarkHandler::openUrl, q, [this](const QString &path) {
             enterUrl(path);
         });
         m_bookmarkButton->setMenu(m_bookmarkHandler->menu());
     } else if (m_bookmarkHandler) {
         m_bookmarkButton->setMenu(nullptr);
         delete m_bookmarkHandler;
         m_bookmarkHandler = nullptr;
     }
 
     if (m_bookmarkButton) {
         m_bookmarkButton->setVisible(show);
     }
 
     m_toggleBookmarksAction->setChecked(show);
 }
 
 // static, overloaded
 QUrl KFileWidget::getStartUrl(const QUrl &startDir, QString &recentDirClass)
 {
     QString fileName; // result discarded
     return getStartUrl(startDir, recentDirClass, fileName);
 }
 
 // static, overloaded
 QUrl KFileWidget::getStartUrl(const QUrl &startDir, QString &recentDirClass, QString &fileName)
 {
     recentDirClass.clear();
     fileName.clear();
     QUrl ret;
 
     bool useDefaultStartDir = startDir.isEmpty();
     if (!useDefaultStartDir) {
         if (startDir.scheme() == QLatin1String("kfiledialog")) {
             //  The startDir URL with this protocol may be in the format:
             //                                                    directory()   fileName()
             //  1.  kfiledialog:///keyword                           "/"         keyword
             //  2.  kfiledialog:///keyword?global                    "/"         keyword
             //  3.  kfiledialog:///keyword/                          "/"         keyword
             //  4.  kfiledialog:///keyword/?global                   "/"         keyword
             //  5.  kfiledialog:///keyword/filename                /keyword      filename
             //  6.  kfiledialog:///keyword/filename?global         /keyword      filename
 
             QString keyword;
             QString urlDir = startDir.adjusted(QUrl::RemoveFilename | QUrl::StripTrailingSlash).path();
             QString urlFile = startDir.fileName();
             if (urlDir == QLatin1String("/")) { // '1'..'4' above
                 keyword = urlFile;
                 fileName.clear();
             } else { // '5' or '6' above
                 keyword = urlDir.mid(1);
                 fileName = urlFile;
             }
 
 #if KIOFILEWIDGETS_BUILD_DEPRECATED_SINCE(5, 96)
             const QLatin1String query(startDir.query() == QLatin1String("global") ? "::%1" : ":%1");
 #else
             const QLatin1String query(":%1");
 #endif
             recentDirClass = query.arg(keyword);
 
             ret = QUrl::fromLocalFile(KRecentDirs::dir(recentDirClass));
         } else { // not special "kfiledialog" URL
             // "foo.png" only gives us a file name, the default start dir will be used.
             // "file:foo.png" (from KHTML/webkit, due to fromPath()) means the same
             //   (and is the reason why we don't just use QUrl::isRelative()).
 
             // In all other cases (startDir contains a directory path, or has no
             // fileName for us anyway, such as smb://), startDir is indeed a dir url.
 
             if (!startDir.adjusted(QUrl::RemoveFilename | QUrl::StripTrailingSlash).path().isEmpty() || startDir.fileName().isEmpty()) {
                 // can use start directory
                 ret = startDir; // will be checked by stat later
                 // If we won't be able to list it (e.g. http), then use default
                 if (!KProtocolManager::supportsListing(ret)) {
                     useDefaultStartDir = true;
                     fileName = startDir.fileName();
                 }
             } else { // file name only
                 fileName = startDir.fileName();
                 useDefaultStartDir = true;
             }
         }
     }
 
     if (useDefaultStartDir) {
         if (lastDirectory()->isEmpty()) {
             *lastDirectory() = QUrl::fromLocalFile(QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation));
             const QUrl home(QUrl::fromLocalFile(QDir::homePath()));
             // if there is no docpath set (== home dir), we prefer the current
             // directory over it. We also prefer the homedir when our CWD is
             // different from our homedirectory or when the document dir
             // does not exist
             if (lastDirectory()->adjusted(QUrl::StripTrailingSlash) == home.adjusted(QUrl::StripTrailingSlash) //
                 || QDir::currentPath() != QDir::homePath() //
                 || !QDir(lastDirectory()->toLocalFile()).exists()) {
                 *lastDirectory() = QUrl::fromLocalFile(QDir::currentPath());
             }
         }
         ret = *lastDirectory();
     }
 
     // qDebug() << "for" << startDir << "->" << ret << "recentDirClass" << recentDirClass << "fileName" << fileName;
     return ret;
 }
 
 void KFileWidget::setStartDir(const QUrl &directory)
 {
     if (directory.isValid()) {
         *lastDirectory() = directory;
     }
 }
 
 void KFileWidgetPrivate::setNonExtSelection()
 {
     // Enhanced rename: Don't highlight the file extension.
     QString filename = locationEditCurrentText();
     QMimeDatabase db;
     QString extension = db.suffixForFileName(filename);
 
     if (!extension.isEmpty()) {
         m_locationEdit->lineEdit()->setSelection(0, filename.length() - extension.length() - 1);
     } else {
         int lastDot = filename.lastIndexOf(QLatin1Char('.'));
         if (lastDot > 0) {
             m_locationEdit->lineEdit()->setSelection(0, lastDot);
         } else {
             m_locationEdit->lineEdit()->selectAll();
         }
     }
 }
 
 // Sets the filter text to "File type" if the dialog is saving and a MIME type
 // filter has been set; otherwise, the text is "Filter:"
 void KFileWidgetPrivate::updateFilterText()
 {
     QString label;
     QString whatsThisText;
 
     if (m_operationMode == KFileWidget::Saving && m_filterWidget->isMimeFilter()) {
         label = i18n("&File type:");
         whatsThisText = i18n("<qt>This is the file type selector. It is used to select the format that the file will be saved as.</qt>");
     } else {
         label = i18n("&Filter:");
         whatsThisText = i18n(
             "<qt>This is the filter to apply to the file list. "
             "File names that do not match the filter will not be shown.<p>"
             "You may select from one of the preset filters in the "
             "drop down menu, or you may enter a custom filter "
             "directly into the text area.</p><p>"
             "Wildcards such as * and ? are allowed.</p></qt>");
     }
 
     if (m_filterLabel) {
         m_filterLabel->setText(label);
         m_filterLabel->setWhatsThis(whatsThisText);
     }
     if (m_filterWidget) {
         m_filterWidget->setWhatsThis(whatsThisText);
     }
 }
 
 #if KIOFILEWIDGETS_BUILD_DEPRECATED_SINCE(5, 66)
 KToolBar *KFileWidget::toolBar() const
 {
     return d->m_toolbar;
 }
 #endif
 
 void KFileWidget::setCustomWidget(QWidget *widget)
 {
     delete d->m_bottomCustomWidget;
     d->m_bottomCustomWidget = widget;
 
     // add it to the dialog, below the filter list box.
 
     // Change the parent so that this widget is a child of the main widget
     d->m_bottomCustomWidget->setParent(this);
 
     d->m_vbox->addWidget(d->m_bottomCustomWidget);
     // d->m_vbox->addSpacing(3); // can't do this every time...
 
     // FIXME: This should adjust the tab orders so that the custom widget
     // comes after the Cancel button. The code appears to do this, but the result
     // somehow screws up the tab order of the file path combo box. Not a major
     // problem, but ideally the tab order with a custom widget should be
     // the same as the order without one.
     setTabOrder(d->m_cancelButton, d->m_bottomCustomWidget);
     setTabOrder(d->m_bottomCustomWidget, d->m_urlNavigator);
 }
 
 void KFileWidget::setCustomWidget(const QString &text, QWidget *widget)
 {
     delete d->m_labeledCustomWidget;
     d->m_labeledCustomWidget = widget;
 
     QLabel *label = new QLabel(text, this);
     label->setAlignment(Qt::AlignRight);
     d->m_lafBox->addWidget(label, 2, 0, Qt::AlignVCenter);
     d->m_lafBox->addWidget(widget, 2, 1, Qt::AlignVCenter);
 }
 
 KDirOperator *KFileWidget::dirOperator()
 {
     return d->m_ops;
 }
 
 void KFileWidget::readConfig(KConfigGroup &group)
 {
     d->m_configGroup = group;
     d->readViewConfig();
     d->readRecentFiles();
 }
 
 QString KFileWidgetPrivate::locationEditCurrentText() const
 {
     return QDir::fromNativeSeparators(m_locationEdit->currentText());
 }
 
 QUrl KFileWidgetPrivate::mostLocalUrl(const QUrl &url)
 {
     if (url.isLocalFile()) {
         return url;
     }
 
     KIO::StatJob *statJob = KIO::stat(url, KIO::HideProgressInfo);
     KJobWidgets::setWindow(statJob, q);
     bool res = statJob->exec();
 
     if (!res) {
         return url;
     }
 
     const QString path = statJob->statResult().stringValue(KIO::UDSEntry::UDS_LOCAL_PATH);
     if (!path.isEmpty()) {
         QUrl newUrl;
         newUrl.setPath(path);
         return newUrl;
     }
 
     return url;
 }
 
 void KFileWidgetPrivate::setInlinePreviewShown(bool show)
 {
     m_ops->setInlinePreviewShown(show);
 }
 
 void KFileWidget::setConfirmOverwrite(bool enable)
 {
     d->m_confirmOverwrite = enable;
 }
 
 void KFileWidget::setInlinePreviewShown(bool show)
 {
     d->setInlinePreviewShown(show);
 }
 
 QSize KFileWidget::dialogSizeHint() const
 {
     int fontSize = fontMetrics().height();
     QSize goodSize(48 * fontSize, 30 * fontSize);
     const QSize scrnSize = d->screenSize();
     QSize minSize(scrnSize / 2);
     QSize maxSize(scrnSize * qreal(0.9));
     return (goodSize.expandedTo(minSize).boundedTo(maxSize));
 }
 
 void KFileWidget::setViewMode(KFile::FileView mode)
 {
     d->m_ops->setViewMode(mode);
     d->m_hasView = true;
 }
 
 void KFileWidget::setSupportedSchemes(const QStringList &schemes)
 {
     d->m_model->setSupportedSchemes(schemes);
     d->m_ops->setSupportedSchemes(schemes);
     d->m_urlNavigator->setSupportedSchemes(schemes);
 }
 
 QStringList KFileWidget::supportedSchemes() const
 {
     return d->m_model->supportedSchemes();
 }
 
 #include "moc_kfilewidget.cpp"