File indexing completed on 2024-04-21 03:55:25

 /*
     SPDX-FileCopyrightText: 2006-2010 Peter Penz <peter.penz@gmx.at>
     SPDX-FileCopyrightText: 2006 Aaron J. Seigo <aseigo@kde.org>
     SPDX-FileCopyrightText: 2007 Kevin Ottens <ervin@kde.org>
     SPDX-FileCopyrightText: 2007 Urs Wolfer <uwolfer @ kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include "kurlnavigator.h"
 #include "kcoreurlnavigator.h"
 
 #include "../utils_p.h"
 #include "kurlnavigatorbutton_p.h"
 #include "kurlnavigatordropdownbutton_p.h"
 #include "kurlnavigatorpathselectoreventfilter_p.h"
 #include "kurlnavigatorplacesselector_p.h"
 #include "kurlnavigatorschemecombo_p.h"
 #include "kurlnavigatortogglebutton_p.h"
 
 #include <KIO/StatJob>
 #include <KLocalizedString>
 #include <kfileitem.h>
 #include <kfileplacesmodel.h>
 #include <kprotocolinfo.h>
 #include <kurifilter.h>
 #include <kurlcombobox.h>
 #include <kurlcompletion.h>
 
 #include <QActionGroup>
 #include <QApplication>
 #include <QClipboard>
 #include <QDir>
 #include <QDropEvent>
 #include <QHBoxLayout>
 #include <QKeyEvent>
 #include <QMenu>
 #include <QMetaMethod>
 #include <QMimeData>
 #include <QMimeDatabase>
 #include <QTimer>
 #include <QUrlQuery>
 
 #include <algorithm>
 #include <numeric>
 
 using namespace KDEPrivate;
 
 struct KUrlNavigatorData {
     QByteArray state;
 };
 Q_DECLARE_METATYPE(KUrlNavigatorData)
 
 class KUrlNavigatorPrivate
 {
 public:
     KUrlNavigatorPrivate(const QUrl &url, KUrlNavigator *qq, KFilePlacesModel *placesModel);
 
     ~KUrlNavigatorPrivate()
     {
         m_dropDownButton->removeEventFilter(q);
         m_pathBox->removeEventFilter(q);
         m_toggleEditableMode->removeEventFilter(q);
 
         for (KUrlNavigatorButton *button : std::as_const(m_navButtons)) {
             button->removeEventFilter(q);
         }
     }
 
     /** Applies the edited URL in m_pathBox to the URL navigator */
     void applyUncommittedUrl();
     void slotApplyUrl(QUrl url);
     // Returns true if "text" matched a URI filter (i.e. was fitlered),
     // otherwise returns false
     bool slotCheckFilters(const QString &text);
 
     void slotReturnPressed();
     void slotSchemeChanged(const QString &);
     void openPathSelectorMenu();
 
     /**
      * Appends the widget at the end of the URL navigator. It is assured
      * that the filler widget remains as last widget to fill the remaining
      * width.
      */
     void appendWidget(QWidget *widget, int stretch = 0);
 
     /**
      * This slot is connected to the clicked signal of the navigation bar button. It calls switchView().
      * Moreover, if switching from "editable" mode to the breadcrumb view, it calls applyUncommittedUrl().
      */
     void slotToggleEditableButtonPressed();
 
     /**
      * Switches the navigation bar between the breadcrumb view and the
      * traditional view (see setUrlEditable()).
      */
     void switchView();
 
     /** Emits the signal urlsDropped(). */
     void dropUrls(const QUrl &destination, QDropEvent *event, KUrlNavigatorButton *dropButton);
 
     /**
      * Is invoked when a navigator button has been clicked.
      * Different combinations of mouse clicks and keyboard modifiers have different effects on how
      * the url is opened. The behaviours are the following:
      * - shift+middle-click or ctrl+shift+left-click => activeTabRequested() signal is emitted
      * - ctrl+left-click or middle-click => tabRequested() signal is emitted
      * - shift+left-click => newWindowRequested() signal is emitted
      * - left-click => open the new url in-place
      */
     void slotNavigatorButtonClicked(const QUrl &url, Qt::MouseButton button, Qt::KeyboardModifiers modifiers);
 
     void openContextMenu(const QPoint &p);
 
     void slotPathBoxChanged(const QString &text);
 
     void updateContent();
 
     /**
      * Updates all buttons to have one button for each part of the
      * current URL. Existing buttons, which are available by m_navButtons,
      * are reused if possible. If the URL is longer, new buttons will be
      * created, if the URL is shorter, the remaining buttons will be deleted.
      * @param startIndex    Start index of URL part (/), where the buttons
      *                      should be created for each following part.
      */
     void updateButtons(int startIndex);
 
     /**
      * Updates the visibility state of all buttons describing the URL. If the
      * width of the URL navigator is too small, the buttons representing the upper
      * paths of the URL will be hidden and moved to a drop down menu.
      */
     void updateButtonVisibility();
 
     /**
      * @return Text for the first button of the URL navigator.
      */
     QString firstButtonText() const;
 
     /**
      * Returns the URL that should be applied for the button with the index \a index.
      */
     QUrl buttonUrl(int index) const;
 
     void switchToBreadcrumbMode();
 
     /**
      * Deletes all URL navigator buttons. m_navButtons is
      * empty after this operation.
      */
     void deleteButtons();
 
     /**
      * Retrieves the place url for the current url.
      * E. g. for the path "fish://root@192.168.0.2/var/lib" the string
      * "fish://root@192.168.0.2" will be returned, which leads to the
      * navigation indication 'Custom Path > var > lib". For e. g.
      * "settings:///System/" the path "settings://" will be returned.
      */
     QUrl retrievePlaceUrl() const;
 
     KUrlNavigator *const q;
 
     QHBoxLayout *m_layout = new QHBoxLayout(q);
     KCoreUrlNavigator *m_coreUrlNavigator = nullptr;
     QList<KUrlNavigatorButton *> m_navButtons;
     QStringList m_supportedSchemes;
     QUrl m_homeUrl;
     KUrlNavigatorPlacesSelector *m_placesSelector = nullptr;
     KUrlComboBox *m_pathBox = nullptr;
     KUrlNavigatorSchemeCombo *m_schemes = nullptr;
     KUrlNavigatorDropDownButton *m_dropDownButton = nullptr;
     KUrlNavigatorButtonBase *m_toggleEditableMode = nullptr;
     QWidget *m_dropWidget = nullptr;
 
     bool m_editable = false;
     bool m_active = true;
     bool m_showPlacesSelector = false;
     bool m_showFullPath = false;
 
     struct {
         bool showHidden = false;
         bool sortHiddenLast = false;
     } m_subfolderOptions;
 };
 
 KUrlNavigatorPrivate::KUrlNavigatorPrivate(const QUrl &url, KUrlNavigator *qq, KFilePlacesModel *placesModel)
     : q(qq)
     , m_coreUrlNavigator(new KCoreUrlNavigator(url, qq))
     , m_showPlacesSelector(placesModel != nullptr)
 {
     m_layout->setSpacing(0);
     m_layout->setContentsMargins(0, 0, 0, 0);
 
     q->connect(m_coreUrlNavigator, &KCoreUrlNavigator::currentLocationUrlChanged, q, [this]() {
         Q_EMIT q->urlChanged(m_coreUrlNavigator->currentLocationUrl());
     });
     q->connect(m_coreUrlNavigator, &KCoreUrlNavigator::currentUrlAboutToChange, q, [this](const QUrl &url) {
         Q_EMIT q->urlAboutToBeChanged(url);
     });
     q->connect(m_coreUrlNavigator, &KCoreUrlNavigator::historySizeChanged, q, [this]() {
         Q_EMIT q->historyChanged();
     });
     q->connect(m_coreUrlNavigator, &KCoreUrlNavigator::historyIndexChanged, q, [this]() {
         Q_EMIT q->historyChanged();
     });
     q->connect(m_coreUrlNavigator, &KCoreUrlNavigator::historyChanged, q, [this]() {
         Q_EMIT q->historyChanged();
     });
     q->connect(m_coreUrlNavigator, &KCoreUrlNavigator::urlSelectionRequested, q, [this](const QUrl &url) {
         Q_EMIT q->urlSelectionRequested(url);
     });
 
     // initialize the places selector
     q->setAutoFillBackground(false);
 
     if (placesModel != nullptr) {
         m_placesSelector = new KUrlNavigatorPlacesSelector(q, placesModel);
         q->connect(m_placesSelector, &KUrlNavigatorPlacesSelector::placeActivated, q, &KUrlNavigator::setLocationUrl);
         q->connect(m_placesSelector, &KUrlNavigatorPlacesSelector::tabRequested, q, &KUrlNavigator::tabRequested);
 
         auto updateContentFunc = [this]() {
             updateContent();
         };
         q->connect(placesModel, &KFilePlacesModel::rowsInserted, q, updateContentFunc);
         q->connect(placesModel, &KFilePlacesModel::rowsRemoved, q, updateContentFunc);
         q->connect(placesModel, &KFilePlacesModel::dataChanged, q, updateContentFunc);
     }
 
     // create scheme combo
     m_schemes = new KUrlNavigatorSchemeCombo(QString(), q);
     q->connect(m_schemes, &KUrlNavigatorSchemeCombo::activated, q, [this](const QString &schene) {
         slotSchemeChanged(schene);
     });
 
     // create drop down button for accessing all paths of the URL
     m_dropDownButton = new KUrlNavigatorDropDownButton(q);
     m_dropDownButton->setForegroundRole(QPalette::WindowText);
     m_dropDownButton->installEventFilter(q);
     q->connect(m_dropDownButton, &KUrlNavigatorDropDownButton::clicked, q, [this]() {
         openPathSelectorMenu();
     });
 
     // initialize the path box of the traditional view
     m_pathBox = new KUrlComboBox(KUrlComboBox::Directories, true, q);
     m_pathBox->setSizeAdjustPolicy(QComboBox::AdjustToContentsOnFirstShow);
     m_pathBox->installEventFilter(q);
 
     KUrlCompletion *kurlCompletion = new KUrlCompletion(KUrlCompletion::DirCompletion);
     m_pathBox->setCompletionObject(kurlCompletion);
     m_pathBox->setAutoDeleteCompletionObject(true);
 
     // TODO KF6: remove this QOverload, only KUrlComboBox::returnPressed(const QString &) will remain
     q->connect(m_pathBox, &KUrlComboBox::returnPressed, q, [this]() {
         slotReturnPressed();
     });
     q->connect(m_pathBox, &KUrlComboBox::urlActivated, q, &KUrlNavigator::setLocationUrl);
     q->connect(m_pathBox, &QComboBox::editTextChanged, q, [this](const QString &text) {
         slotPathBoxChanged(text);
     });
 
     // create toggle button which allows to switch between
     // the breadcrumb and traditional view
     m_toggleEditableMode = new KUrlNavigatorToggleButton(q);
     m_toggleEditableMode->installEventFilter(q);
     m_toggleEditableMode->setMinimumWidth(20);
     q->connect(m_toggleEditableMode, &KUrlNavigatorToggleButton::clicked, q, [this]() {
         slotToggleEditableButtonPressed();
     });
 
     if (m_placesSelector != nullptr) {
         m_layout->addWidget(m_placesSelector);
     }
     m_layout->addWidget(m_schemes);
     m_layout->addWidget(m_dropDownButton);
     m_layout->addWidget(m_pathBox, 1);
     m_layout->addWidget(m_toggleEditableMode);
 
     q->setContextMenuPolicy(Qt::CustomContextMenu);
     q->connect(q, &QWidget::customContextMenuRequested, q, [this](const QPoint &pos) {
         openContextMenu(pos);
     });
 }
 
 void KUrlNavigatorPrivate::appendWidget(QWidget *widget, int stretch)
 {
     m_layout->insertWidget(m_layout->count() - 1, widget, stretch);
 }
 
 void KUrlNavigatorPrivate::slotApplyUrl(QUrl url)
 {
     // Parts of the following code have been taken from the class KateFileSelector
     // located in kate/app/katefileselector.hpp of Kate.
     // SPDX-FileCopyrightText: 2001 Christoph Cullmann <cullmann@kde.org>
     // SPDX-FileCopyrightText: 2001 Joseph Wenninger <jowenn@kde.org>
     // SPDX-FileCopyrightText: 2001 Anders Lund <anders.lund@lund.tdcadsl.dk>
 
     // For example "desktop:/" _not_ "desktop:", see the comment in slotSchemeChanged()
     if (!url.isEmpty() && url.path().isEmpty() && KProtocolInfo::protocolClass(url.scheme()) == QLatin1String(":local")) {
         url.setPath(QStringLiteral("/"));
     }
 
     const auto urlStr = url.toString();
     QStringList urls = m_pathBox->urls();
     urls.removeAll(urlStr);
     urls.prepend(urlStr);
     m_pathBox->setUrls(urls, KUrlComboBox::RemoveBottom);
 
     q->setLocationUrl(url);
     // The URL might have been adjusted by KUrlNavigator::setUrl(), hence
     // synchronize the result in the path box.
     m_pathBox->setUrl(q->locationUrl());
 }
 
 bool KUrlNavigatorPrivate::slotCheckFilters(const QString &text)
 {
     KUriFilterData filteredData(text);
     filteredData.setCheckForExecutables(false);
     // Using kshorturifilter to fix up e.g. "ftp.kde.org" ---> "ftp://ftp.kde.org"
     const auto filtersList = QStringList{QStringLiteral("kshorturifilter")};
     const bool wasFiltered = KUriFilter::self()->filterUri(filteredData, filtersList);
     if (wasFiltered) {
         slotApplyUrl(filteredData.uri()); // The text was filtered
     }
     return wasFiltered;
 }
 
 void KUrlNavigatorPrivate::applyUncommittedUrl()
 {
     const QString text = m_pathBox->currentText().trimmed();
     QUrl url = q->locationUrl();
 
     // Using the stat job below, check if the url and text match a local dir; but first
     // handle a special case where "url" is empty in the unittests which use
     // KUrlNavigator::setLocationUrl(QUrl()); in practice (e.g. in Dolphin, or KFileWidget),
     // locationUrl() is never empty
     if (url.isEmpty() && !text.isEmpty()) {
         if (slotCheckFilters(text)) {
             return;
         }
     }
 
     // Treat absolute paths as absolute paths.
     // Relative paths get appended to the current path.
     if (text.startsWith(QLatin1Char('/'))) {
         url.setPath(text);
     } else {
         url.setPath(Utils::concatPaths(url.path(), text));
     }
 
     // Dirs and symlinks to dirs
     constexpr auto details = KIO::StatBasic | KIO::StatResolveSymlink;
     auto *job = KIO::stat(url, KIO::StatJob::DestinationSide, details, KIO::HideProgressInfo);
     q->connect(job, &KJob::result, q, [this, job, text]() {
         // If there is a dir matching "text" relative to the current url, use that, e.g.:
         // - typing "bar" while at "/path/to/foo" ---> "/path/to/foo/bar/"
         // - typing ".config" while at "/home/foo" ---> "/home/foo/.config"
         if (!job->error() && job->statResult().isDir()) {
             slotApplyUrl(job->url());
             return;
         }
 
         // Check if text matches a URI filter
         if (slotCheckFilters(text)) {
             return;
         }
 
         // ... otherwise fallback to whatever QUrl::fromUserInput() returns
         slotApplyUrl(QUrl::fromUserInput(text));
     });
 }
 
 void KUrlNavigatorPrivate::slotReturnPressed()
 {
     applyUncommittedUrl();
 
     Q_EMIT q->returnPressed();
 
     if (QApplication::keyboardModifiers() & Qt::ControlModifier) {
         // Pressing Ctrl+Return automatically switches back to the breadcrumb mode.
         // The switch must be done asynchronously, as we are in the context of the
         // editor.
         auto switchModeFunc = [this]() {
             switchToBreadcrumbMode();
         };
         QMetaObject::invokeMethod(q, switchModeFunc, Qt::QueuedConnection);
     }
 }
 
 void KUrlNavigatorPrivate::slotSchemeChanged(const QString &scheme)
 {
     Q_ASSERT(m_editable);
 
     QUrl url;
     url.setScheme(scheme);
     if (KProtocolInfo::protocolClass(scheme) == QLatin1String(":local")) {
         // E.g. "file:/" or "desktop:/", _not_ "file:" or "desktop:" respectively.
         // This is the more expected behaviour, "file:somedir" treats somedir as
         // a path relative to current dir; file:/somedir is an absolute path to /somedir.
         url.setPath(QStringLiteral("/"));
     } else {
         // With no authority set we'll get e.g. "ftp:" instead of "ftp://".
         // We want the latter, so let's set an empty authority.
         url.setAuthority(QString());
     }
 
     m_pathBox->setEditUrl(url);
 }
 
 void KUrlNavigatorPrivate::openPathSelectorMenu()
 {
     if (m_navButtons.count() <= 0) {
         return;
     }
 
     const QUrl firstVisibleUrl = m_navButtons.constFirst()->url();
 
     QString spacer;
     QPointer<QMenu> popup = new QMenu(q);
 
     auto *popupFilter = new KUrlNavigatorPathSelectorEventFilter(popup.data());
     q->connect(popupFilter, &KUrlNavigatorPathSelectorEventFilter::tabRequested, q, &KUrlNavigator::tabRequested);
     popup->installEventFilter(popupFilter);
 
     const QUrl placeUrl = retrievePlaceUrl();
     int idx = placeUrl.path().count(QLatin1Char('/')); // idx points to the first directory
     // after the place path
 
     const QString path = m_coreUrlNavigator->locationUrl(m_coreUrlNavigator->historyIndex()).path();
     QString dirName = path.section(QLatin1Char('/'), idx, idx);
     if (dirName.isEmpty()) {
         if (placeUrl.isLocalFile()) {
             dirName = QStringLiteral("/");
         } else {
             dirName = placeUrl.toDisplayString();
         }
     }
     do {
         const QString text = spacer + dirName;
 
         QAction *action = new QAction(text, popup);
         const QUrl currentUrl = buttonUrl(idx);
         if (currentUrl == firstVisibleUrl) {
             popup->addSeparator();
         }
         action->setData(QVariant(currentUrl.toString()));
         popup->addAction(action);
 
         ++idx;
         spacer.append(QLatin1String("  "));
         dirName = path.section(QLatin1Char('/'), idx, idx);
     } while (!dirName.isEmpty());
 
     const QPoint pos = q->mapToGlobal(m_dropDownButton->geometry().bottomRight());
     const QAction *activatedAction = popup->exec(pos);
     if (activatedAction != nullptr) {
         const QUrl url(activatedAction->data().toString());
         q->setLocationUrl(url);
     }
 
     // Delete the menu, unless it has been deleted in its own nested event loop already.
     if (popup) {
         popup->deleteLater();
     }
 }
 
 void KUrlNavigatorPrivate::slotToggleEditableButtonPressed()
 {
     if (m_editable) {
         applyUncommittedUrl();
     }
 
     switchView();
 }
 
 void KUrlNavigatorPrivate::switchView()
 {
     m_toggleEditableMode->setFocus();
     m_editable = !m_editable;
     m_toggleEditableMode->setChecked(m_editable);
     updateContent();
     if (q->isUrlEditable()) {
         m_pathBox->setFocus();
     }
 
     q->requestActivation();
     Q_EMIT q->editableStateChanged(m_editable);
 }
 
 void KUrlNavigatorPrivate::dropUrls(const QUrl &destination, QDropEvent *event, KUrlNavigatorButton *dropButton)
 {
     if (event->mimeData()->hasUrls()) {
         m_dropWidget = qobject_cast<QWidget *>(dropButton);
         Q_EMIT q->urlsDropped(destination, event);
     }
 }
 
 void KUrlNavigatorPrivate::slotNavigatorButtonClicked(const QUrl &url, Qt::MouseButton button, Qt::KeyboardModifiers modifiers)
 {
     if ((button & Qt::MiddleButton && modifiers & Qt::ShiftModifier) || (button & Qt::LeftButton && modifiers & (Qt::ControlModifier | Qt::ShiftModifier))) {
         Q_EMIT q->activeTabRequested(url);
     } else if (button & Qt::MiddleButton || (button & Qt::LeftButton && modifiers & Qt::ControlModifier)) {
         Q_EMIT q->tabRequested(url);
     } else if (button & Qt::LeftButton && modifiers & Qt::ShiftModifier) {
         Q_EMIT q->newWindowRequested(url);
     } else if (button & Qt::LeftButton) {
         q->setLocationUrl(url);
     }
 }
 
 void KUrlNavigatorPrivate::openContextMenu(const QPoint &p)
 {
     q->setActive(true);
 
     QPointer<QMenu> popup = new QMenu(q);
 
     // provide 'Copy' action, which copies the current URL of
     // the URL navigator into the clipboard
     QAction *copyAction = popup->addAction(QIcon::fromTheme(QStringLiteral("edit-copy")), i18n("Copy"));
 
     // provide 'Paste' action, which copies the current clipboard text
     // into the URL navigator
     QAction *pasteAction = popup->addAction(QIcon::fromTheme(QStringLiteral("edit-paste")), i18n("Paste"));
     QClipboard *clipboard = QApplication::clipboard();
     pasteAction->setEnabled(!clipboard->text().isEmpty());
 
     popup->addSeparator();
 
     // We are checking whether the signal is connected because it's odd to have a tab entry even
     // if it's not supported, like in the case of the open dialog
     const bool isTabSignal = q->isSignalConnected(QMetaMethod::fromSignal(&KUrlNavigator::tabRequested));
     const bool isWindowSignal = q->isSignalConnected(QMetaMethod::fromSignal(&KUrlNavigator::newWindowRequested));
     if (isTabSignal || isWindowSignal) {
         auto it = std::find_if(m_navButtons.cbegin(), m_navButtons.cend(), [&p](const KUrlNavigatorButton *button) {
             return button->geometry().contains(p);
         });
         if (it != m_navButtons.cend()) {
             const auto *button = *it;
             const QUrl url = button->url();
             const QString text = button->text();
 
             if (isTabSignal) {
                 QAction *openInTab = popup->addAction(QIcon::fromTheme(QStringLiteral("tab-new")), i18nc("@item:inmenu", "Open \"%1\" in New Tab", text));
                 q->connect(openInTab, &QAction::triggered, q, [this, url]() {
                     Q_EMIT q->tabRequested(url);
                 });
             }
 
             if (isWindowSignal) {
                 QAction *openInWindow =
                     popup->addAction(QIcon::fromTheme(QStringLiteral("window-new")), i18nc("@item:inmenu", "Open \"%1\" in New Window", text));
                 q->connect(openInWindow, &QAction::triggered, q, [this, url]() {
                     Q_EMIT q->newWindowRequested(url);
                 });
             }
         }
     }
 
     // provide radiobuttons for toggling between the edit and the navigation mode
     QAction *editAction = popup->addAction(i18n("Edit"));
     editAction->setCheckable(true);
 
     QAction *navigateAction = popup->addAction(i18n("Navigate"));
     navigateAction->setCheckable(true);
 
     QActionGroup *modeGroup = new QActionGroup(popup);
     modeGroup->addAction(editAction);
     modeGroup->addAction(navigateAction);
     if (q->isUrlEditable()) {
         editAction->setChecked(true);
     } else {
         navigateAction->setChecked(true);
     }
 
     popup->addSeparator();
 
     // allow showing of the full path
     QAction *showFullPathAction = popup->addAction(i18n("Show Full Path"));
     showFullPathAction->setCheckable(true);
     showFullPathAction->setChecked(q->showFullPath());
 
     QAction *activatedAction = popup->exec(QCursor::pos());
     if (activatedAction == copyAction) {
         QMimeData *mimeData = new QMimeData();
         mimeData->setText(q->locationUrl().toDisplayString(QUrl::PreferLocalFile));
         clipboard->setMimeData(mimeData);
     } else if (activatedAction == pasteAction) {
         q->setLocationUrl(QUrl::fromUserInput(clipboard->text()));
     } else if (activatedAction == editAction) {
         q->setUrlEditable(true);
     } else if (activatedAction == navigateAction) {
         q->setUrlEditable(false);
     } else if (activatedAction == showFullPathAction) {
         q->setShowFullPath(showFullPathAction->isChecked());
     }
 
     // Delete the menu, unless it has been deleted in its own nested event loop already.
     if (popup) {
         popup->deleteLater();
     }
 }
 
 void KUrlNavigatorPrivate::slotPathBoxChanged(const QString &text)
 {
     if (text.isEmpty()) {
         const QString scheme = q->locationUrl().scheme();
         m_schemes->setScheme(scheme);
         if (m_supportedSchemes.count() != 1) {
             m_schemes->show();
         }
     } else {
         m_schemes->hide();
     }
 }
 
 void KUrlNavigatorPrivate::updateContent()
 {
     const QUrl currentUrl = q->locationUrl();
     if (m_placesSelector != nullptr) {
         m_placesSelector->updateSelection(currentUrl);
     }
 
     if (m_editable) {
         m_schemes->hide();
         m_dropDownButton->hide();
 
         deleteButtons();
         m_toggleEditableMode->setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Preferred);
         q->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Fixed);
 
         m_pathBox->show();
         m_pathBox->setUrl(currentUrl);
     } else {
         m_pathBox->hide();
 
         m_schemes->hide();
 
         m_toggleEditableMode->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Preferred);
         q->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
 
         // Calculate the start index for the directories that should be shown as buttons
         // and create the buttons
         QUrl placeUrl;
         if ((m_placesSelector != nullptr) && !m_showFullPath) {
             placeUrl = m_placesSelector->selectedPlaceUrl();
         }
 
         if (!placeUrl.isValid()) {
             placeUrl = retrievePlaceUrl();
         }
         QString placePath = Utils::trailingSlashRemoved(placeUrl.path());
 
         const int startIndex = placePath.count(QLatin1Char('/'));
         updateButtons(startIndex);
     }
 }
 
 void KUrlNavigatorPrivate::updateButtons(int startIndex)
 {
     QUrl currentUrl = q->locationUrl();
     if (!currentUrl.isValid()) { // QFileDialog::setDirectory not called yet
         return;
     }
 
     const QString path = currentUrl.path();
 
     const int oldButtonCount = m_navButtons.count();
 
     int idx = startIndex;
     bool hasNext = true;
     do {
         const bool createButton = (idx - startIndex) >= oldButtonCount;
         const bool isFirstButton = (idx == startIndex);
         const QString dirName = path.section(QLatin1Char('/'), idx, idx);
         hasNext = isFirstButton || !dirName.isEmpty();
         if (hasNext) {
             KUrlNavigatorButton *button = nullptr;
             if (createButton) {
                 button = new KUrlNavigatorButton(buttonUrl(idx), q);
                 button->installEventFilter(q);
                 button->setForegroundRole(QPalette::WindowText);
                 q->connect(button, &KUrlNavigatorButton::urlsDroppedOnNavButton, q, [this, button](const QUrl &destination, QDropEvent *event) {
                     dropUrls(destination, event, button);
                 });
 
                 auto activatedFunc = [this](const QUrl &url, Qt::MouseButton btn, Qt::KeyboardModifiers modifiers) {
                     slotNavigatorButtonClicked(url, btn, modifiers);
                 };
                 q->connect(button, &KUrlNavigatorButton::navigatorButtonActivated, q, activatedFunc);
 
                 q->connect(button, &KUrlNavigatorButton::finishedTextResolving, q, [this]() {
                     updateButtonVisibility();
                 });
 
                 appendWidget(button);
             } else {
                 button = m_navButtons[idx - startIndex];
                 button->setUrl(buttonUrl(idx));
             }
 
             if (isFirstButton) {
                 button->setText(firstButtonText());
             }
             button->setActive(q->isActive());
 
             if (createButton) {
                 if (!isFirstButton) {
                     q->setTabOrder(m_navButtons.constLast(), button);
                 }
                 m_navButtons.append(button);
             }
 
             ++idx;
             button->setActiveSubDirectory(path.section(QLatin1Char('/'), idx, idx));
         }
     } while (hasNext);
 
     // delete buttons which are not used anymore
     const int newButtonCount = idx - startIndex;
     if (newButtonCount < oldButtonCount) {
         const auto itBegin = m_navButtons.begin() + newButtonCount;
         const auto itEnd = m_navButtons.end();
         for (auto it = itBegin; it != itEnd; ++it) {
             auto *navBtn = *it;
             navBtn->hide();
             navBtn->deleteLater();
         }
         m_navButtons.erase(itBegin, itEnd);
     }
 
     q->setTabOrder(m_dropDownButton, m_navButtons.constFirst());
     q->setTabOrder(m_navButtons.constLast(), m_toggleEditableMode);
 
     updateButtonVisibility();
 }
 
 void KUrlNavigatorPrivate::updateButtonVisibility()
 {
     if (m_editable) {
         return;
     }
 
     const int buttonsCount = m_navButtons.count();
     if (buttonsCount == 0) {
         m_dropDownButton->hide();
         return;
     }
 
     // Subtract all widgets from the available width, that must be shown anyway
     int availableWidth = q->width() - m_toggleEditableMode->minimumWidth();
 
     if ((m_placesSelector != nullptr) && m_placesSelector->isVisible()) {
         availableWidth -= m_placesSelector->width();
     }
 
     if ((m_schemes != nullptr) && m_schemes->isVisible()) {
         availableWidth -= m_schemes->width();
     }
 
     // Check whether buttons must be hidden at all...
     int requiredButtonWidth = 0;
     for (const auto *button : std::as_const(m_navButtons)) {
         requiredButtonWidth += button->minimumWidth();
     }
 
     if (requiredButtonWidth > availableWidth) {
         // At least one button must be hidden. This implies that the
         // drop-down button must get visible, which again decreases the
         // available width.
         availableWidth -= m_dropDownButton->width();
     }
 
     // Hide buttons...
     bool isLastButton = true;
     bool hasHiddenButtons = false;
     QList<KUrlNavigatorButton *> buttonsToShow;
     for (auto it = m_navButtons.crbegin(); it != m_navButtons.crend(); ++it) {
         KUrlNavigatorButton *button = *it;
         availableWidth -= button->minimumWidth();
         if ((availableWidth <= 0) && !isLastButton) {
             button->hide();
             hasHiddenButtons = true;
         } else {
             // Don't show the button immediately, as setActive()
             // might change the size and a relayout gets triggered
             // after showing the button. So the showing of all buttons
             // is postponed until all buttons have the correct
             // activation state.
             buttonsToShow.append(button);
         }
         isLastButton = false;
     }
 
     // All buttons have the correct activation state and
     // can be shown now
     for (KUrlNavigatorButton *button : std::as_const(buttonsToShow)) {
         button->show();
     }
 
     if (hasHiddenButtons) {
         m_dropDownButton->show();
     } else {
         // Check whether going upwards is possible. If this is the case, show the drop-down button.
         QUrl url(m_navButtons.front()->url());
         const bool visible = !url.matches(KIO::upUrl(url), QUrl::StripTrailingSlash) //
             && url.scheme() != QLatin1String("baloosearch") //
             && url.scheme() != QLatin1String("filenamesearch");
         m_dropDownButton->setVisible(visible);
     }
 }
 
 QString KUrlNavigatorPrivate::firstButtonText() const
 {
     QString text;
 
     // The first URL navigator button should get the name of the
     // place instead of the directory name
     if ((m_placesSelector != nullptr) && !m_showFullPath) {
         text = m_placesSelector->selectedPlaceText();
     }
 
     const QUrl currentUrl = q->locationUrl();
 
     if (text.isEmpty()) {
         if (currentUrl.isLocalFile()) {
 #ifdef Q_OS_WIN
             text = currentUrl.path().length() > 1 ? currentUrl.path().left(2) : QDir::rootPath();
 #else
             text = QStringLiteral("/");
 #endif
         }
     }
 
     if (text.isEmpty()) {
         if (currentUrl.path().isEmpty() || currentUrl.path() == QLatin1Char('/')) {
             QUrlQuery query(currentUrl);
             text = query.queryItemValue(QStringLiteral("title"));
         }
     }
 
     if (text.isEmpty()) {
         text = currentUrl.scheme() + QLatin1Char(':');
         if (!currentUrl.host().isEmpty()) {
             text += QLatin1Char(' ') + currentUrl.host();
         }
     }
 
     return text;
 }
 
 QUrl KUrlNavigatorPrivate::buttonUrl(int index) const
 {
     if (index < 0) {
         index = 0;
     }
 
     // Keep scheme, hostname etc. as this is needed for e. g. browsing
     // FTP directories
     QUrl url = q->locationUrl();
     QString path = url.path();
 
     if (!path.isEmpty()) {
         if (index == 0) {
             // prevent the last "/" from being stripped
             // or we end up with an empty path
 #ifdef Q_OS_WIN
             path = path.length() > 1 ? path.left(2) : QDir::rootPath();
 #else
             path = QStringLiteral("/");
 #endif
         } else {
             path = path.section(QLatin1Char('/'), 0, index);
         }
     }
 
     url.setPath(path);
     return url;
 }
 
 void KUrlNavigatorPrivate::switchToBreadcrumbMode()
 {
     q->setUrlEditable(false);
 }
 
 void KUrlNavigatorPrivate::deleteButtons()
 {
     for (KUrlNavigatorButton *button : std::as_const(m_navButtons)) {
         button->hide();
         button->deleteLater();
     }
     m_navButtons.clear();
 }
 
 QUrl KUrlNavigatorPrivate::retrievePlaceUrl() const
 {
     QUrl currentUrl = q->locationUrl();
     currentUrl.setPath(QString());
     return currentUrl;
 }
 
 // ------------------------------------------------------------------------------------------------
 
 KUrlNavigator::KUrlNavigator(QWidget *parent)
     : KUrlNavigator(nullptr, QUrl{}, parent)
 {
 }
 
 KUrlNavigator::KUrlNavigator(KFilePlacesModel *placesModel, const QUrl &url, QWidget *parent)
     : QWidget(parent)
     , d(new KUrlNavigatorPrivate(url, this, placesModel))
 {
     const int minHeight = d->m_pathBox->sizeHint().height();
     setMinimumHeight(minHeight);
 
     setMinimumWidth(100);
 
     d->updateContent();
 }
 
 KUrlNavigator::~KUrlNavigator()
 {
     d->m_dropDownButton->removeEventFilter(this);
     d->m_pathBox->removeEventFilter(this);
     for (auto *button : std::as_const(d->m_navButtons)) {
         button->removeEventFilter(this);
     }
 }
 
 QUrl KUrlNavigator::locationUrl(int historyIndex) const
 {
     return d->m_coreUrlNavigator->locationUrl(historyIndex);
 }
 
 void KUrlNavigator::saveLocationState(const QByteArray &state)
 {
     auto current = d->m_coreUrlNavigator->locationState().value<KUrlNavigatorData>();
     current.state = state;
     d->m_coreUrlNavigator->saveLocationState(QVariant::fromValue(current));
 }
 
 QByteArray KUrlNavigator::locationState(int historyIndex) const
 {
     return d->m_coreUrlNavigator->locationState(historyIndex).value<KUrlNavigatorData>().state;
 }
 
 bool KUrlNavigator::goBack()
 {
     return d->m_coreUrlNavigator->goBack();
 }
 
 bool KUrlNavigator::goForward()
 {
     return d->m_coreUrlNavigator->goForward();
 }
 
 bool KUrlNavigator::goUp()
 {
     return d->m_coreUrlNavigator->goUp();
 }
 
 void KUrlNavigator::goHome()
 {
     if (d->m_homeUrl.isEmpty() || !d->m_homeUrl.isValid()) {
         setLocationUrl(QUrl::fromLocalFile(QDir::homePath()));
     } else {
         setLocationUrl(d->m_homeUrl);
     }
 }
 
 void KUrlNavigator::setHomeUrl(const QUrl &url)
 {
     d->m_homeUrl = url;
 }
 
 QUrl KUrlNavigator::homeUrl() const
 {
     return d->m_homeUrl;
 }
 
 void KUrlNavigator::setUrlEditable(bool editable)
 {
     if (d->m_editable != editable) {
         d->switchView();
     }
 }
 
 bool KUrlNavigator::isUrlEditable() const
 {
     return d->m_editable;
 }
 
 void KUrlNavigator::setShowFullPath(bool show)
 {
     if (d->m_showFullPath != show) {
         d->m_showFullPath = show;
         d->updateContent();
     }
 }
 
 bool KUrlNavigator::showFullPath() const
 {
     return d->m_showFullPath;
 }
 
 void KUrlNavigator::setActive(bool active)
 {
     if (active != d->m_active) {
         d->m_active = active;
 
         d->m_dropDownButton->setActive(active);
         for (KUrlNavigatorButton *button : std::as_const(d->m_navButtons)) {
             button->setActive(active);
         }
 
         update();
         if (active) {
             Q_EMIT activated();
         }
     }
 }
 
 bool KUrlNavigator::isActive() const
 {
     return d->m_active;
 }
 
 void KUrlNavigator::setPlacesSelectorVisible(bool visible)
 {
     if (visible == d->m_showPlacesSelector) {
         return;
     }
 
     if (visible && (d->m_placesSelector == nullptr)) {
         // the places selector cannot get visible as no
         // places model is available
         return;
     }
 
     d->m_showPlacesSelector = visible;
     d->m_placesSelector->setVisible(visible);
 }
 
 bool KUrlNavigator::isPlacesSelectorVisible() const
 {
     return d->m_showPlacesSelector;
 }
 
 QUrl KUrlNavigator::uncommittedUrl() const
 {
     KUriFilterData filteredData(d->m_pathBox->currentText().trimmed());
     filteredData.setCheckForExecutables(false);
     if (KUriFilter::self()->filterUri(filteredData, QStringList{QStringLiteral("kshorturifilter")})) {
         return filteredData.uri();
     } else {
         return QUrl::fromUserInput(filteredData.typedString());
     }
 }
 
 void KUrlNavigator::setLocationUrl(const QUrl &newUrl)
 {
     d->m_coreUrlNavigator->setCurrentLocationUrl(newUrl);
 
     d->updateContent();
 
     requestActivation();
 }
 
 void KUrlNavigator::requestActivation()
 {
     setActive(true);
 }
 
 void KUrlNavigator::setFocus()
 {
     if (isUrlEditable()) {
         d->m_pathBox->setFocus();
     } else {
         QWidget::setFocus();
     }
 }
 
 void KUrlNavigator::keyPressEvent(QKeyEvent *event)
 {
     if (isUrlEditable() && (event->key() == Qt::Key_Escape)) {
         setUrlEditable(false);
     } else {
         QWidget::keyPressEvent(event);
     }
 }
 
 void KUrlNavigator::keyReleaseEvent(QKeyEvent *event)
 {
     QWidget::keyReleaseEvent(event);
 }
 
 void KUrlNavigator::mousePressEvent(QMouseEvent *event)
 {
     if (event->button() == Qt::MiddleButton) {
         requestActivation();
     }
     QWidget::mousePressEvent(event);
 }
 
 void KUrlNavigator::mouseReleaseEvent(QMouseEvent *event)
 {
     if (event->button() == Qt::MiddleButton) {
         const QRect bounds = d->m_toggleEditableMode->geometry();
         if (bounds.contains(event->pos())) {
             // The middle mouse button has been clicked above the
             // toggle-editable-mode-button. Paste the clipboard content
             // as location URL.
             QClipboard *clipboard = QApplication::clipboard();
             const QMimeData *mimeData = clipboard->mimeData();
             if (mimeData->hasText()) {
                 const QString text = mimeData->text();
                 setLocationUrl(QUrl::fromUserInput(text));
             }
         }
     }
     QWidget::mouseReleaseEvent(event);
 }
 
 void KUrlNavigator::resizeEvent(QResizeEvent *event)
 {
     QTimer::singleShot(0, this, [this]() {
         d->updateButtonVisibility();
     });
     QWidget::resizeEvent(event);
 }
 
 void KUrlNavigator::wheelEvent(QWheelEvent *event)
 {
     setActive(true);
     QWidget::wheelEvent(event);
 }
 
 bool KUrlNavigator::eventFilter(QObject *watched, QEvent *event)
 {
     switch (event->type()) {
     case QEvent::FocusIn:
         if (watched == d->m_pathBox) {
             requestActivation();
             setFocus();
         }
         for (KUrlNavigatorButton *button : std::as_const(d->m_navButtons)) {
             button->setShowMnemonic(true);
         }
         break;
 
     case QEvent::FocusOut:
         for (KUrlNavigatorButton *button : std::as_const(d->m_navButtons)) {
             button->setShowMnemonic(false);
         }
         break;
 
     default:
         break;
     }
 
     return QWidget::eventFilter(watched, event);
 }
 
 int KUrlNavigator::historySize() const
 {
     return d->m_coreUrlNavigator->historySize();
 }
 
 int KUrlNavigator::historyIndex() const
 {
     return d->m_coreUrlNavigator->historyIndex();
 }
 
 KUrlComboBox *KUrlNavigator::editor() const
 {
     return d->m_pathBox;
 }
 
 void KUrlNavigator::setSupportedSchemes(const QStringList &schemes)
 {
     d->m_supportedSchemes = schemes;
     d->m_schemes->setSupportedSchemes(d->m_supportedSchemes);
 }
 
 QStringList KUrlNavigator::supportedSchemes() const
 {
     return d->m_supportedSchemes;
 }
 
 QWidget *KUrlNavigator::dropWidget() const
 {
     return d->m_dropWidget;
 }
 
 void KUrlNavigator::setShowHiddenFolders(bool showHiddenFolders)
 {
     d->m_subfolderOptions.showHidden = showHiddenFolders;
 }
 
 bool KUrlNavigator::showHiddenFolders() const
 {
     return d->m_subfolderOptions.showHidden;
 }
 
 void KUrlNavigator::setSortHiddenFoldersLast(bool sortHiddenFoldersLast)
 {
     d->m_subfolderOptions.sortHiddenLast = sortHiddenFoldersLast;
 }
 
 bool KUrlNavigator::sortHiddenFoldersLast() const
 {
     return d->m_subfolderOptions.sortHiddenLast;
 }
 
 #include "moc_kurlnavigator.cpp"