Port Dolphin away from KApplication, KCmdLineArgs and K4AboutData

[dolphin.git] / src / dolphinmainwindow.cpp

diff --git a/src/dolphinmainwindow.cpp b/src/dolphinmainwindow.cpp
index f64f847feb97d69705e6c581ff90e64aad6d4d68..0ee6e5c2cc376f64f17aaefce6047091fbf444be 100644 (file)
--- a/src/dolphinmainwindow.cpp
+++ b/src/dolphinmainwindow.cpp
@@ -1,5 +1,5 @@
 /***************************************************************************
 /***************************************************************************

- *   Copyright (C) 2006 by Peter Penz <peter.penz@gmx.at>                  *
+ *   Copyright (C) 2006 by Peter Penz <peter.penz19@gmail.com>             *

  *   Copyright (C) 2006 by Stefan Monov <logixoul@gmail.com>               *
  *   Copyright (C) 2006 by Cvetoslav Ludmiloff <ludmiloff@gmail.com>       *
  *                                                                         *
  *   Copyright (C) 2006 by Stefan Monov <logixoul@gmail.com>               *
  *   Copyright (C) 2006 by Cvetoslav Ludmiloff <ludmiloff@gmail.com>       *
  *                                                                         *


@@ -20,151 +20,194 @@
  ***************************************************************************/
 
 #include "dolphinmainwindow.h"
  ***************************************************************************/
 
 #include "dolphinmainwindow.h"

-#include "dolphinviewactionhandler.h"
-#include "dolphindropcontroller.h"

 
 

-#include <config-nepomuk.h>
-
-#include "dolphinapplication.h"
-#include "dolphinfileplacesview.h"
-#include "dolphinnewmenu.h"
-#include "dolphinsettings.h"
-#include "dolphinsettingsdialog.h"
-#include "dolphinstatusbar.h"
+#include "dolphindockwidget.h"
+#include "dolphincontextmenu.h"
+#include "dolphinnewfilemenu.h"
+#include "dolphinrecenttabsmenu.h"
+#include "dolphintabwidget.h"

 #include "dolphinviewcontainer.h"
 #include "dolphinviewcontainer.h"

-#include "infosidebarpage.h"
-#include "metadatawidget.h"
-#include "mainwindowadaptor.h"
-#include "treeviewsidebarpage.h"
-#include "viewpropertiesdialog.h"
-#include "viewproperties.h"
+#include "dolphintabpage.h"
+#include "panels/folders/folderspanel.h"
+#include "panels/places/placespanel.h"
+#include "panels/information/informationpanel.h"
+#include "settings/dolphinsettingsdialog.h"
+#include "statusbar/dolphinstatusbar.h"
+#include "views/dolphinviewactionhandler.h"
+#include "views/dolphinremoteencoding.h"
+#include "views/draganddrophelper.h"
+#include "views/viewproperties.h"
+#include "views/dolphinnewfilemenuobserver.h"

 
 #ifndef Q_OS_WIN
 
 #ifndef Q_OS_WIN

-#include "terminalsidebarpage.h"
+#include "panels/terminal/terminalpanel.h"

 #endif
 
 #include "dolphin_generalsettings.h"
 #endif
 
 #include "dolphin_generalsettings.h"

-#include "dolphin_iconsmodesettings.h"

 
 

-#include <kaction.h>
-#include <kactioncollection.h>
-#include <kconfig.h>
-#include <kdesktopfile.h>
+#include <KActionCollection>
+#include <KActionMenu>
+#include <KConfig>

 #include <kdeversion.h>
 #include <kdeversion.h>

-#include <kfiledialog.h>
-#include <kfileplacesmodel.h>
-#include <kglobal.h>
-#include <kicon.h>
-#include <kiconloader.h>
-#include <kio/netaccess.h>
-#include <kinputdialog.h>
-#include <klocale.h>
-#include <kmenu.h>
-#include <kmenubar.h>
-#include <kmessagebox.h>
-#include <kurlnavigator.h>
-#include <konqmimedata.h>
-#include <kpropertiesdialog.h>
-#include <kprotocolinfo.h>
-#include <ktoggleaction.h>
-#include <krun.h>
-#include <kshell.h>
-#include <kstandarddirs.h>
-#include <kstatusbar.h>
-#include <kstandardaction.h>
-#include <ktabbar.h>
-#include <kurl.h>
-#include <kurlcombobox.h>
-
-#include <QKeyEvent>
-#include <QClipboard>
+#include <kdualaction.h>
+#include <KJobWidgets>

 #include <QLineEdit>
 #include <QLineEdit>

-#include <QSplitter>
-#include <QDockWidget>
-
-DolphinMainWindow::DolphinMainWindow(int id) :
+#include <KToolBar>
+#include <KIO/NetAccess>
+#include <KIO/JobUiDelegate>
+#include <KLocalizedString>
+#include <KProtocolManager>
+#include <QMenu>
+#include <KMessageBox>
+#include <KFileItemListProperties>
+#include <KRun>
+#include <KShell>
+#include <KStandardAction>
+#include <KToggleAction>
+#include <KUrlNavigator>
+#include <KToolInvocation>
+#include <KUrlComboBox>
+
+#include <QApplication>
+#include <QMenuBar>
+#include <QClipboard>
+#include <QToolButton>
+#include <QTimer>
+#include <QStandardPaths>
+#include <QPushButton>
+#include <QCloseEvent>
+#include <QShowEvent>
+#include <QDialog>
+
+namespace {
+    // Used for GeneralSettings::version() to determine whether
+    // an updated version of Dolphin is running.
+    const int CurrentDolphinVersion = 200;
+};
+
+DolphinMainWindow::DolphinMainWindow() :

     KXmlGuiWindow(0),
     KXmlGuiWindow(0),

-    m_newMenu(0),
-    m_showMenuBar(0),
-    m_tabBar(0),
+    m_newFileMenu(0),
+    m_tabWidget(0),

     m_activeViewContainer(0),
     m_activeViewContainer(0),

-    m_centralWidgetLayout(0),
-    m_id(id),
-    m_tabIndex(0),
-    m_viewTab(),
-    m_actionHandler(0)
+    m_actionHandler(0),
+    m_remoteEncoding(0),
+    m_settingsDialog(),
+    m_controlButton(0),
+    m_updateToolBarTimer(0),
+    m_lastHandleUrlStatJob(0)

 {
     setObjectName("Dolphin#");
 
 {
     setObjectName("Dolphin#");
 

-    m_viewTab.append(ViewTab());
+    connect(&DolphinNewFileMenuObserver::instance(), &DolphinNewFileMenuObserver::errorMessage,
+            this, &DolphinMainWindow::showErrorMessage);
+
+    KIO::FileUndoManager* undoManager = KIO::FileUndoManager::self();
+    undoManager->setUiInterface(new UndoUiInterface());
+
+    connect(undoManager, static_cast<void(KIO::FileUndoManager::*)(bool)>(&KIO::FileUndoManager::undoAvailable),
+            this, &DolphinMainWindow::slotUndoAvailable);
+    connect(undoManager, &KIO::FileUndoManager::undoTextChanged,
+            this, &DolphinMainWindow::slotUndoTextChanged);
+    connect(undoManager, &KIO::FileUndoManager::jobRecordingStarted,
+            this, &DolphinMainWindow::clearStatusBar);
+    connect(undoManager, &KIO::FileUndoManager::jobRecordingFinished,
+            this, &DolphinMainWindow::showCommand);
+
+    GeneralSettings* generalSettings = GeneralSettings::self();
+    const bool firstRun = (generalSettings->version() < 200);
+    if (firstRun) {
+        generalSettings->setViewPropsTimestamp(QDateTime::currentDateTime());
+    }
+
+    setAcceptDrops(true);
+
+    m_tabWidget = new DolphinTabWidget(this);
+    connect(m_tabWidget, SIGNAL(activeViewChanged(DolphinViewContainer*)),
+            this, SLOT(activeViewChanged(DolphinViewContainer*)));
+    connect(m_tabWidget, SIGNAL(tabCountChanged(int)),
+            this, SLOT(tabCountChanged(int)));
+    connect(m_tabWidget, SIGNAL(currentUrlChanged(QUrl)),
+            this, SLOT(setUrlAsCaption(QUrl)));
+    setCentralWidget(m_tabWidget);
+
+    setupActions();
+
+    m_actionHandler = new DolphinViewActionHandler(actionCollection(), this);
+    connect(m_actionHandler, &DolphinViewActionHandler::actionBeingHandled, this, &DolphinMainWindow::clearStatusBar);
+    connect(m_actionHandler, &DolphinViewActionHandler::createDirectory, this, &DolphinMainWindow::createDirectory);
+
+    m_remoteEncoding = new DolphinRemoteEncoding(this, m_actionHandler);
+    connect(this, &DolphinMainWindow::urlChanged,
+            m_remoteEncoding, &DolphinRemoteEncoding::slotAboutToOpenUrl);

 
 

-    new MainWindowAdaptor(this);
-    QDBusConnection::sessionBus().registerObject(QString("/dolphin/MainWindow%1").arg(m_id), this);
+    setupDockWidgets();

 
 

-    KonqFileUndoManager::incRef();
+    setupGUI(Keys | Save | Create | ToolBar);
+    stateChanged("new_file");
+
+    QClipboard* clipboard = QApplication::clipboard();
+    connect(clipboard, &QClipboard::dataChanged,
+            this, &DolphinMainWindow::updatePasteAction);

 
 

-    KonqFileUndoManager* undoManager = KonqFileUndoManager::self();
-    undoManager->setUiInterface(new UndoUiInterface(this));
+    QAction* showFilterBarAction = actionCollection()->action("show_filter_bar");
+    showFilterBarAction->setChecked(generalSettings->filterBar());
+
+    if (firstRun) {
+        menuBar()->setVisible(false);
+        // Assure a proper default size if Dolphin runs the first time
+        resize(750, 500);
+    }

 
 

-    connect(undoManager, SIGNAL(undoAvailable(bool)),
-            this, SLOT(slotUndoAvailable(bool)));
-    connect(undoManager, SIGNAL(undoTextChanged(const QString&)),
-            this, SLOT(slotUndoTextChanged(const QString&)));
-    connect(DolphinSettings::instance().placesModel(), SIGNAL(errorMessage(const QString&)),
-            this, SLOT(slotHandlePlacesError(const QString&)));
+    const bool showMenu = !menuBar()->isHidden();
+    QAction* showMenuBarAction = actionCollection()->action(KStandardAction::name(KStandardAction::ShowMenubar));
+    showMenuBarAction->setChecked(showMenu);  // workaround for bug #171080
+    if (!showMenu) {
+        createControlButton();
+    }

 }
 
 DolphinMainWindow::~DolphinMainWindow()
 {
 }
 
 DolphinMainWindow::~DolphinMainWindow()
 {

-    KonqFileUndoManager::decRef();
-    DolphinApplication::app()->removeMainWindow(this);

 }
 
 }
 

-void DolphinMainWindow::toggleViews()
+void DolphinMainWindow::openDirectories(const QList<QUrl>& dirs)

 {
 {

-    if (m_viewTab[m_tabIndex].primaryView == 0) {
-        return;
-    }
-
-    // move secondary view from the last position of the splitter
-    // to the first position
-    m_viewTab[m_tabIndex].splitter->insertWidget(0, m_viewTab[m_tabIndex].secondaryView);
-
-    DolphinViewContainer* container = m_viewTab[m_tabIndex].primaryView;
-    m_viewTab[m_tabIndex].primaryView = m_viewTab[m_tabIndex].secondaryView;
-    m_viewTab[m_tabIndex].secondaryView = container;
+    m_tabWidget->openDirectories(dirs);

 }
 
 }
 

-void DolphinMainWindow::slotDoingOperation(KonqFileUndoManager::CommandType commandType)
+void DolphinMainWindow::openFiles(const QList<QUrl>& files)

 {
 {

-    clearStatusBar();
-    m_undoCommandTypes.append(commandType);
+    m_tabWidget->openFiles(files);

 }
 
 }
 

-void DolphinMainWindow::refreshViews()
+void DolphinMainWindow::showCommand(CommandType command)

 {
 {

-    Q_ASSERT(m_viewTab[m_tabIndex].primaryView != 0);
+    DolphinStatusBar* statusBar = m_activeViewContainer->statusBar();
+    switch (command) {
+    case KIO::FileUndoManager::Copy:
+        statusBar->setText(i18nc("@info:status", "Successfully copied."));
+        break;
+    case KIO::FileUndoManager::Move:
+        statusBar->setText(i18nc("@info:status", "Successfully moved."));
+        break;
+    case KIO::FileUndoManager::Link:
+        statusBar->setText(i18nc("@info:status", "Successfully linked."));
+        break;
+    case KIO::FileUndoManager::Trash:
+        statusBar->setText(i18nc("@info:status", "Successfully moved to trash."));
+        break;
+    case KIO::FileUndoManager::Rename:
+        statusBar->setText(i18nc("@info:status", "Successfully renamed."));
+        break;

 
 

-    // remember the current active view, as because of
-    // the refreshing the active view might change to
-    // the secondary view
-    DolphinViewContainer* activeViewContainer = m_activeViewContainer;
+    case KIO::FileUndoManager::Mkdir:
+        statusBar->setText(i18nc("@info:status", "Created folder."));
+        break;

 
 

-    m_viewTab[m_tabIndex].primaryView->view()->refresh();
-    if (m_viewTab[m_tabIndex].secondaryView != 0) {
-        m_viewTab[m_tabIndex].secondaryView->view()->refresh();
+    default:
+        break;

     }
     }

-
-    setActiveViewContainer(activeViewContainer);
-}
-
-void DolphinMainWindow::dropUrls(const KUrl::List& urls,
-                                 const KUrl& destination)
-{
-    DolphinDropController dropController(this);
-    connect(&dropController, SIGNAL(doingOperation(KonqFileUndoManager::CommandType)),
-            this, SLOT(slotDoingOperation(KonqFileUndoManager::CommandType)));
-    dropController.dropUrls(urls, destination);

 }
 
 void DolphinMainWindow::pasteIntoFolder()
 }
 
 void DolphinMainWindow::pasteIntoFolder()


@@ -172,26 +215,29 @@ void DolphinMainWindow::pasteIntoFolder()
     m_activeViewContainer->view()->pasteIntoFolder();
 }
 
     m_activeViewContainer->view()->pasteIntoFolder();
 }
 

-void DolphinMainWindow::changeUrl(const KUrl& url)
+void DolphinMainWindow::changeUrl(const QUrl &url)

 {
 {

-    DolphinViewContainer* view = activeViewContainer();
-    if (view != 0) {
-        view->setUrl(url);
-        updateEditActions();
-        updateViewActions();
-        updateGoActions();
-        const QString caption = url.fileName();
-        setCaption(caption);
-        if (m_viewTab.count() > 1) {
-            m_tabBar->setTabText(m_tabIndex, caption);
-        }
-        emit urlChanged(url);
+    if (!KProtocolManager::supportsListing(url)) {
+        // The URL navigator only checks for validity, not
+        // if the URL can be listed. An error message is
+        // shown due to DolphinViewContainer::restoreView().
+        return;

     }
     }

+
+    m_activeViewContainer->setUrl(url);
+    updateEditActions();
+    updatePasteAction();
+    updateViewActions();
+    updateGoActions();
+
+    emit urlChanged(url);

 }
 
 }
 

-void DolphinMainWindow::changeSelection(const KFileItemList& selection)
+void DolphinMainWindow::slotTerminalDirectoryChanged(const QUrl& url)

 {
 {

-    activeViewContainer()->view()->changeSelection(selection);
+    m_activeViewContainer->setAutoGrabFocus(false);
+    changeUrl(url);
+    m_activeViewContainer->setAutoGrabFocus(true);

 }
 
 void DolphinMainWindow::slotEditableStateChanged(bool editable)
 }
 
 void DolphinMainWindow::slotEditableStateChanged(bool editable)


@@ -205,42 +251,32 @@ void DolphinMainWindow::slotSelectionChanged(const KFileItemList& selection)
 {
     updateEditActions();
 
 {
     updateEditActions();
 

-    Q_ASSERT(m_viewTab[m_tabIndex].primaryView != 0);
-    int selectedUrlsCount = m_viewTab[m_tabIndex].primaryView->view()->selectedUrls().count();
-    if (m_viewTab[m_tabIndex].secondaryView != 0) {
-        selectedUrlsCount += m_viewTab[m_tabIndex].secondaryView->view()->selectedUrls().count();
-    }
+    const int selectedUrlsCount = m_tabWidget->currentTabPage()->selectedItemsCount();

 
     QAction* compareFilesAction = actionCollection()->action("compare_files");
     if (selectedUrlsCount == 2) {
 
     QAction* compareFilesAction = actionCollection()->action("compare_files");
     if (selectedUrlsCount == 2) {

-        const bool kompareInstalled = !KGlobal::dirs()->findExe("kompare").isEmpty();
-        compareFilesAction->setEnabled(selectedUrlsCount == 2 && kompareInstalled);
+        compareFilesAction->setEnabled(isKompareInstalled());

     } else {
         compareFilesAction->setEnabled(false);
     }
 
     } else {
         compareFilesAction->setEnabled(false);
     }
 

-    m_activeViewContainer->updateStatusBar();
-

     emit selectionChanged(selection);
 }
 
     emit selectionChanged(selection);
 }
 

-void DolphinMainWindow::slotRequestItemInfo(const KFileItem& item)
-{
-    emit requestItemInfo(item);
-}
-

 void DolphinMainWindow::updateHistory()
 {
     const KUrlNavigator* urlNavigator = m_activeViewContainer->urlNavigator();
     const int index = urlNavigator->historyIndex();
 
     QAction* backAction = actionCollection()->action("go_back");
 void DolphinMainWindow::updateHistory()
 {
     const KUrlNavigator* urlNavigator = m_activeViewContainer->urlNavigator();
     const int index = urlNavigator->historyIndex();
 
     QAction* backAction = actionCollection()->action("go_back");

-    if (backAction != 0) {
+    if (backAction) {
+        backAction->setToolTip(i18nc("@info", "Go back"));

         backAction->setEnabled(index < urlNavigator->historySize() - 1);
     }
 
     QAction* forwardAction = actionCollection()->action("go_forward");
         backAction->setEnabled(index < urlNavigator->historySize() - 1);
     }
 
     QAction* forwardAction = actionCollection()->action("go_forward");

-    if (forwardAction != 0) {
+    if (forwardAction) {
+        forwardAction->setToolTip(i18nc("@info", "Go forward"));

         forwardAction->setEnabled(index > 0);
     }
 }
         forwardAction->setEnabled(index > 0);
     }
 }


@@ -253,120 +289,145 @@ void DolphinMainWindow::updateFilterBarAction(bool show)
 
 void DolphinMainWindow::openNewMainWindow()
 {
 
 void DolphinMainWindow::openNewMainWindow()
 {

-    DolphinApplication::app()->createMainWindow()->show();
+    KRun::run("dolphin %u", QList<QUrl>(), this);

 }
 
 }
 

-void DolphinMainWindow::openNewTab()
+void DolphinMainWindow::openNewActivatedTab()

 {
 {

-    openNewTab(m_activeViewContainer->url());
-    m_tabBar->setCurrentIndex(m_viewTab.count() - 1);
+    m_tabWidget->openNewActivatedTab();

 }
 
 }
 

-void DolphinMainWindow::openNewTab(const KUrl& url)
+void DolphinMainWindow::openNewTab(const QUrl& url)

 {
 {

-    if (m_viewTab.count() == 1) {
-        // Only one view is open currently and hence no tab is shown at
-        // all. Before creating a tab for 'url', provide a tab for the current URL.
-        m_tabBar->addTab(KIcon("folder"), m_activeViewContainer->url().fileName());
-        m_tabBar->blockSignals(false);
-    }
-
-    m_tabBar->addTab(KIcon("folder"), url.fileName());
+    m_tabWidget->openNewTab(url);
+}

 
 

-    ViewTab viewTab;
-    viewTab.splitter = new QSplitter(this);
-    viewTab.primaryView = new DolphinViewContainer(this, viewTab.splitter, url);
-    connectViewSignals(viewTab.primaryView);
-    viewTab.primaryView->view()->reload();
+void DolphinMainWindow::openNewActivatedTab(const QUrl& url)
+{
+    m_tabWidget->openNewActivatedTab(url);
+}

 
 

-    m_viewTab.append(viewTab);
+void DolphinMainWindow::openInNewTab()
+{
+    const KFileItemList& list = m_activeViewContainer->view()->selectedItems();
+    if (list.isEmpty()) {
+        openNewTab(m_activeViewContainer->url());
+    } else {
+        foreach (const KFileItem& item, list) {
+            const QUrl& url = DolphinView::openItemAsFolderUrl(item);
+            if (!url.isEmpty()) {
+                openNewTab(url);
+            }
+        }
+    }

 }
 
 }
 

-void DolphinMainWindow::toggleActiveView()
+void DolphinMainWindow::openInNewWindow()

 {
 {

-    if (m_viewTab[m_tabIndex].secondaryView == 0) {
-        // only one view is available
-        return;
+    QUrl newWindowUrl;
+
+    const KFileItemList list = m_activeViewContainer->view()->selectedItems();
+    if (list.isEmpty()) {
+        newWindowUrl = m_activeViewContainer->url();
+    } else if (list.count() == 1) {
+        const KFileItem& item = list.first();
+        newWindowUrl = DolphinView::openItemAsFolderUrl(item);

     }
 
     }
 

-    Q_ASSERT(m_activeViewContainer != 0);
-    Q_ASSERT(m_viewTab[m_tabIndex].primaryView != 0);
+    if (!newWindowUrl.isEmpty()) {
+        KRun::run("dolphin %u", {newWindowUrl}, this);
+    }
+}
+
+void DolphinMainWindow::showEvent(QShowEvent* event)
+{
+    KXmlGuiWindow::showEvent(event);

 
 

-    DolphinViewContainer* left  = m_viewTab[m_tabIndex].primaryView;
-    DolphinViewContainer* right = m_viewTab[m_tabIndex].secondaryView;
-    setActiveViewContainer(m_activeViewContainer == right ? left : right);
+    if (!event->spontaneous()) {
+        m_activeViewContainer->view()->setFocus();
+    }

 }
 
 void DolphinMainWindow::closeEvent(QCloseEvent* event)
 {
 }
 
 void DolphinMainWindow::closeEvent(QCloseEvent* event)
 {

-    DolphinSettings& settings = DolphinSettings::instance();
-    GeneralSettings* generalSettings = settings.generalSettings();
-    generalSettings->setFirstRun(false);
+    // Find out if Dolphin is closed directly by the user or
+    // by the session manager because the session is closed
+    bool closedByUser = true;
+    if (qApp->isSessionRestored()) {
+        closedByUser = false;
+    }

 
 

-    settings.save();
+    if (m_tabWidget->count() > 1 && GeneralSettings::confirmClosingMultipleTabs() && closedByUser) {
+        // Ask the user if he really wants to quit and close all tabs.
+        // Open a confirmation dialog with 3 buttons:
+        // QDialogButtonBox::Yes    -> Quit
+        // QDialogButtonBox::No     -> Close only the current tab
+        // QDialogButtonBox::Cancel -> do nothing
+        QDialog *dialog = new QDialog(this, Qt::Dialog);
+        dialog->setWindowTitle(i18nc("@title:window", "Confirmation"));
+        dialog->setModal(true);
+        QDialogButtonBox* buttons = new QDialogButtonBox(QDialogButtonBox::Yes | QDialogButtonBox::No | QDialogButtonBox::Cancel);
+        KGuiItem::assign(buttons->button(QDialogButtonBox::Yes), KStandardGuiItem::quit());
+        KGuiItem::assign(buttons->button(QDialogButtonBox::No), KGuiItem(i18n("C&lose Current Tab"), QIcon::fromTheme("tab-close")));
+        KGuiItem::assign(buttons->button(QDialogButtonBox::Cancel), KStandardGuiItem::cancel());
+        buttons->button(QDialogButtonBox::Yes)->setDefault(true);
+
+        bool doNotAskAgainCheckboxResult = false;
+
+        const int result = KMessageBox::createKMessageBox(dialog,
+            buttons,
+            QMessageBox::Warning,
+            i18n("You have multiple tabs open in this window, are you sure you want to quit?"),
+            QStringList(),
+            i18n("Do not ask again"),
+            &doNotAskAgainCheckboxResult,
+            KMessageBox::Notify);
+
+        if (doNotAskAgainCheckboxResult) {
+            GeneralSettings::setConfirmClosingMultipleTabs(false);
+        }
+
+        switch (result) {
+            case QDialogButtonBox::Yes:
+                // Quit
+                break;
+            case QDialogButtonBox::No:
+                // Close only the current tab
+                m_tabWidget->closeTab();
+            default:
+                event->ignore();
+                return;
+        }
+    }
+
+    GeneralSettings::setVersion(CurrentDolphinVersion);
+    GeneralSettings::self()->save();

 
     KXmlGuiWindow::closeEvent(event);
 }
 
 void DolphinMainWindow::saveProperties(KConfigGroup& group)
 {
 
     KXmlGuiWindow::closeEvent(event);
 }
 
 void DolphinMainWindow::saveProperties(KConfigGroup& group)
 {

-    // TODO: remember tabs
-    DolphinViewContainer* cont = m_viewTab[m_tabIndex].primaryView;
-    group.writeEntry("Primary Url", cont->url().url());
-    group.writeEntry("Primary Editable Url", cont->isUrlEditable());
-
-    cont = m_viewTab[m_tabIndex].secondaryView;
-    if (cont != 0) {
-        group.writeEntry("Secondary Url", cont->url().url());
-        group.writeEntry("Secondary Editable Url", cont->isUrlEditable());
-    }
+    m_tabWidget->saveProperties(group);

 }
 
 void DolphinMainWindow::readProperties(const KConfigGroup& group)
 {
 }
 
 void DolphinMainWindow::readProperties(const KConfigGroup& group)
 {

-    // TODO: read tabs
-    DolphinViewContainer* cont = m_viewTab[m_tabIndex].primaryView;
-
-    cont->setUrl(group.readEntry("Primary Url"));
-    bool editable = group.readEntry("Primary Editable Url", false);
-    cont->urlNavigator()->setUrlEditable(editable);
-
-    cont = m_viewTab[m_tabIndex].secondaryView;
-    const QString secondaryUrl = group.readEntry("Secondary Url");
-    if (!secondaryUrl.isEmpty()) {
-        if (cont == 0) {
-            // a secondary view should be shown, but no one is available
-            // currently -> create a new view
-            toggleSplitView();
-            cont = m_viewTab[m_tabIndex].secondaryView;
-            Q_ASSERT(cont != 0);
-        }
-
-        cont->setUrl(secondaryUrl);
-        bool editable = group.readEntry("Secondary Editable Url", false);
-        cont->urlNavigator()->setUrlEditable(editable);
-    } else if (cont != 0) {
-        // no secondary view should be shown, but the default setting shows
-        // one already -> close the view
-        toggleSplitView();
-    }
+    m_tabWidget->readProperties(group);

 }
 
 void DolphinMainWindow::updateNewMenu()
 {
 }
 
 void DolphinMainWindow::updateNewMenu()
 {

-    m_newMenu->slotCheckUpToDate();
-    m_newMenu->setPopupFiles(activeViewContainer()->url());
+    m_newFileMenu->setViewShowsHiddenFiles(activeViewContainer()->view()->hiddenFilesShown());
+    m_newFileMenu->checkUpToDate();
+    m_newFileMenu->setPopupFiles(activeViewContainer()->url());

 }
 
 }
 

-void DolphinMainWindow::properties()
+void DolphinMainWindow::createDirectory()

 {
 {

-    const KFileItemList list = m_activeViewContainer->view()->selectedItems();
-
-    KPropertiesDialog *dialog = new KPropertiesDialog(list, this);
-    dialog->setAttribute(Qt::WA_DeleteOnClose);
-    dialog->show();
-    dialog->raise();
-    dialog->activateWindow();
+    m_newFileMenu->setViewShowsHiddenFiles(activeViewContainer()->view()->hiddenFilesShown());
+    m_newFileMenu->setPopupFiles(activeViewContainer()->url());
+    m_newFileMenu->createDirectory();

 }
 
 void DolphinMainWindow::quit()
 }
 
 void DolphinMainWindow::quit()


@@ -374,62 +435,23 @@ void DolphinMainWindow::quit()
     close();
 }
 
     close();
 }
 

-void DolphinMainWindow::slotHandlePlacesError(const QString &message)
+void DolphinMainWindow::showErrorMessage(const QString& message)

 {
 {

-    if (!message.isEmpty()) {
-        DolphinStatusBar* statusBar = m_activeViewContainer->statusBar();
-        statusBar->setMessage(message, DolphinStatusBar::Error);
-    }
+    m_activeViewContainer->showMessage(message, DolphinViewContainer::Error);

 }
 
 void DolphinMainWindow::slotUndoAvailable(bool available)
 {
     QAction* undoAction = actionCollection()->action(KStandardAction::name(KStandardAction::Undo));
 }
 
 void DolphinMainWindow::slotUndoAvailable(bool available)
 {
     QAction* undoAction = actionCollection()->action(KStandardAction::name(KStandardAction::Undo));

-    if (undoAction != 0) {
+    if (undoAction) {

         undoAction->setEnabled(available);
     }
         undoAction->setEnabled(available);
     }

-
-    if (available && (m_undoCommandTypes.count() > 0)) {
-        const KonqFileUndoManager::CommandType command = m_undoCommandTypes.takeFirst();
-        DolphinStatusBar* statusBar = m_activeViewContainer->statusBar();
-        switch (command) {
-        case KonqFileUndoManager::COPY:
-            statusBar->setMessage(i18nc("@info:status", "Copy operation completed."),
-                                  DolphinStatusBar::OperationCompleted);
-            break;
-        case KonqFileUndoManager::MOVE:
-            statusBar->setMessage(i18nc("@info:status", "Move operation completed."),
-                                  DolphinStatusBar::OperationCompleted);
-            break;
-        case KonqFileUndoManager::LINK:
-            statusBar->setMessage(i18nc("@info:status", "Link operation completed."),
-                                  DolphinStatusBar::OperationCompleted);
-            break;
-        case KonqFileUndoManager::TRASH:
-            statusBar->setMessage(i18nc("@info:status", "Move to trash operation completed."),
-                                  DolphinStatusBar::OperationCompleted);
-            break;
-        case KonqFileUndoManager::RENAME:
-            statusBar->setMessage(i18nc("@info:status", "Renaming operation completed."),
-                                  DolphinStatusBar::OperationCompleted);
-            break;
-
-        case KonqFileUndoManager::MKDIR:
-            statusBar->setMessage(i18nc("@info:status", "Created folder."),
-                                  DolphinStatusBar::OperationCompleted);
-            break;
-
-        default:
-            break;
-        }
-
-    }

 }
 
 void DolphinMainWindow::slotUndoTextChanged(const QString& text)
 {
     QAction* undoAction = actionCollection()->action(KStandardAction::name(KStandardAction::Undo));
 }
 
 void DolphinMainWindow::slotUndoTextChanged(const QString& text)
 {
     QAction* undoAction = actionCollection()->action(KStandardAction::name(KStandardAction::Undo));

-    if (undoAction != 0) {
+    if (undoAction) {

         undoAction->setText(text);
     }
 }
         undoAction->setText(text);
     }
 }


@@ -437,7 +459,8 @@ void DolphinMainWindow::slotUndoTextChanged(const QString& text)
 void DolphinMainWindow::undo()
 {
     clearStatusBar();
 void DolphinMainWindow::undo()
 {
     clearStatusBar();

-    KonqFileUndoManager::self()->undo();
+    KIO::FileUndoManager::self()->uiInterface()->setParentWidget(this);
+    KIO::FileUndoManager::self()->undo();

 }
 
 void DolphinMainWindow::cut()
 }
 
 void DolphinMainWindow::cut()


@@ -455,18 +478,24 @@ void DolphinMainWindow::paste()
     m_activeViewContainer->view()->paste();
 }
 
     m_activeViewContainer->view()->paste();
 }
 

+void DolphinMainWindow::find()
+{
+    m_activeViewContainer->setSearchModeEnabled(true);
+}
+

 void DolphinMainWindow::updatePasteAction()
 {
     QAction* pasteAction = actionCollection()->action(KStandardAction::name(KStandardAction::Paste));
 void DolphinMainWindow::updatePasteAction()
 {
     QAction* pasteAction = actionCollection()->action(KStandardAction::name(KStandardAction::Paste));

-    if (pasteAction == 0) {
-        return;
-    }
-

     QPair<bool, QString> pasteInfo = m_activeViewContainer->view()->pasteInfo();
     pasteAction->setEnabled(pasteInfo.first);
     pasteAction->setText(pasteInfo.second);
 }
 
     QPair<bool, QString> pasteInfo = m_activeViewContainer->view()->pasteInfo();
     pasteAction->setEnabled(pasteInfo.first);
     pasteAction->setText(pasteInfo.second);
 }
 

+void DolphinMainWindow::slotDirectoryLoadingCompleted()
+{
+    updatePasteAction();
+}
+

 void DolphinMainWindow::selectAll()
 {
     clearStatusBar();
 void DolphinMainWindow::selectAll()
 {
     clearStatusBar();


@@ -475,7 +504,7 @@ void DolphinMainWindow::selectAll()
     // URL instead of all items of the view
 
     KUrlNavigator* urlNavigator = m_activeViewContainer->urlNavigator();
     // URL instead of all items of the view
 
     KUrlNavigator* urlNavigator = m_activeViewContainer->urlNavigator();

-    QLineEdit* lineEdit = urlNavigator->editor()->lineEdit();
+    QLineEdit* lineEdit = urlNavigator->editor()->lineEdit(); // krazy:exclude=qclasses

     const bool selectUrl = urlNavigator->isUrlEditable() &&
                            lineEdit->hasFocus();
     if (selectUrl) {
     const bool selectUrl = urlNavigator->isUrlEditable() &&
                            lineEdit->hasFocus();
     if (selectUrl) {


@@ -493,37 +522,9 @@ void DolphinMainWindow::invertSelection()
 
 void DolphinMainWindow::toggleSplitView()
 {
 
 void DolphinMainWindow::toggleSplitView()
 {

-    if (m_viewTab[m_tabIndex].secondaryView == 0) {
-        // create a secondary view
-        QSplitter* splitter = m_viewTab[m_tabIndex].splitter;
-        const int newWidth = (m_viewTab[m_tabIndex].primaryView->width() - splitter->handleWidth()) / 2;
-
-        const DolphinView* view = m_viewTab[m_tabIndex].primaryView->view();
-        m_viewTab[m_tabIndex].secondaryView = new DolphinViewContainer(this, 0, view->rootUrl());
-        connectViewSignals(m_viewTab[m_tabIndex].secondaryView);
-        splitter->addWidget(m_viewTab[m_tabIndex].secondaryView);
-        splitter->setSizes(QList<int>() << newWidth << newWidth);
-        m_viewTab[m_tabIndex].secondaryView->view()->reload();
-        m_viewTab[m_tabIndex].secondaryView->setActive(false);
-        m_viewTab[m_tabIndex].secondaryView->show();
-    } else if (m_activeViewContainer == m_viewTab[m_tabIndex].primaryView) {
-        // remove secondary view
-        m_viewTab[m_tabIndex].secondaryView->close();
-        m_viewTab[m_tabIndex].secondaryView->deleteLater();
-        m_viewTab[m_tabIndex].secondaryView = 0;
-    } else {
-        // The secondary view is active, hence from a users point of view
-        // the content of the secondary view should be moved to the primary view.
-        // From an implementation point of view it is more efficient to close
-        // the primary view and exchange the internal pointers afterwards.
-
-        m_viewTab[m_tabIndex].primaryView->close();
-        m_viewTab[m_tabIndex].primaryView->deleteLater();
-        m_viewTab[m_tabIndex].primaryView = m_viewTab[m_tabIndex].secondaryView;
-        m_viewTab[m_tabIndex].secondaryView = 0;
-    }
+    DolphinTabPage* tabPage = m_tabWidget->currentTabPage();
+    tabPage->setSplitViewEnabled(!tabPage->splitViewEnabled());

 
 

-    setActiveViewContainer(m_viewTab[m_tabIndex].primaryView);

     updateViewActions();
 }
 
     updateViewActions();
 }
 


@@ -535,11 +536,22 @@ void DolphinMainWindow::reloadView()
 
 void DolphinMainWindow::stopLoading()
 {
 
 void DolphinMainWindow::stopLoading()
 {

+    m_activeViewContainer->view()->stopLoading();
+}
+
+void DolphinMainWindow::enableStopAction()
+{
+    actionCollection()->action("stop")->setEnabled(true);
+}
+
+void DolphinMainWindow::disableStopAction()
+{
+    actionCollection()->action("stop")->setEnabled(false);

 }
 
 }
 

-void DolphinMainWindow::toggleFilterBarVisibility(bool show)
+void DolphinMainWindow::showFilterBar()

 {
 {

-    m_activeViewContainer->showFilterBar(show);
+    m_activeViewContainer->setFilterBarVisible(true);

 }
 
 void DolphinMainWindow::toggleEditLocation()
 }
 
 void DolphinMainWindow::toggleEditLocation()


@@ -551,104 +563,109 @@ void DolphinMainWindow::toggleEditLocation()
     urlNavigator->setUrlEditable(action->isChecked());
 }
 
     urlNavigator->setUrlEditable(action->isChecked());
 }
 

-void DolphinMainWindow::editLocation()
+void DolphinMainWindow::replaceLocation()

 {
     KUrlNavigator* navigator = m_activeViewContainer->urlNavigator();
     navigator->setUrlEditable(true);
     navigator->setFocus();
 
     // select the whole text of the combo box editor
 {
     KUrlNavigator* navigator = m_activeViewContainer->urlNavigator();
     navigator->setUrlEditable(true);
     navigator->setFocus();
 
     // select the whole text of the combo box editor

-    QLineEdit* lineEdit = navigator->editor()->lineEdit();
-    const QString text = lineEdit->text();
-    lineEdit->setSelection(0, text.length());
+    QLineEdit* lineEdit = navigator->editor()->lineEdit();  // krazy:exclude=qclasses
+    lineEdit->selectAll();

 }
 
 }
 

-void DolphinMainWindow::adjustViewProperties()
+void DolphinMainWindow::togglePanelLockState()

 {
 {

-    clearStatusBar();
-    ViewPropertiesDialog dlg(m_activeViewContainer->view());
-    dlg.exec();
+    const bool newLockState = !GeneralSettings::lockPanels();
+    foreach (QObject* child, children()) {
+        DolphinDockWidget* dock = qobject_cast<DolphinDockWidget*>(child);
+        if (dock) {
+            dock->setLocked(newLockState);
+        }
+    }
+
+    GeneralSettings::setLockPanels(newLockState);

 }
 
 void DolphinMainWindow::goBack()
 {
 }
 
 void DolphinMainWindow::goBack()
 {

-    clearStatusBar();
-    m_activeViewContainer->urlNavigator()->goBack();
+    KUrlNavigator* urlNavigator = m_activeViewContainer->urlNavigator();
+    urlNavigator->goBack();
+
+    if (urlNavigator->locationState().isEmpty()) {
+        // An empty location state indicates a redirection URL,
+        // which must be skipped too
+        urlNavigator->goBack();
+    }

 }
 
 void DolphinMainWindow::goForward()
 {
 }
 
 void DolphinMainWindow::goForward()
 {

-    clearStatusBar();

     m_activeViewContainer->urlNavigator()->goForward();
 }
 
 void DolphinMainWindow::goUp()
 {
     m_activeViewContainer->urlNavigator()->goForward();
 }
 
 void DolphinMainWindow::goUp()
 {

-    clearStatusBar();

     m_activeViewContainer->urlNavigator()->goUp();
 }
 
 void DolphinMainWindow::goHome()
 {
     m_activeViewContainer->urlNavigator()->goUp();
 }
 
 void DolphinMainWindow::goHome()
 {

-    clearStatusBar();

     m_activeViewContainer->urlNavigator()->goHome();
 }
 
     m_activeViewContainer->urlNavigator()->goHome();
 }
 

-void DolphinMainWindow::findFile()
+void DolphinMainWindow::goBack(Qt::MouseButtons buttons)

 {
 {

-    KRun::run("kfind", m_activeViewContainer->url(), this);
+    // The default case (left button pressed) is handled in goBack().
+    if (buttons == Qt::MiddleButton) {
+        KUrlNavigator* urlNavigator = activeViewContainer()->urlNavigator();
+        const int index = urlNavigator->historyIndex() + 1;
+        openNewTab(urlNavigator->locationUrl(index));
+    }

 }
 
 }
 

-void DolphinMainWindow::compareFiles()
+void DolphinMainWindow::goForward(Qt::MouseButtons buttons)

 {
 {

-    // The method is only invoked if exactly 2 files have
-    // been selected. The selected files may be:
-    // - both in the primary view
-    // - both in the secondary view
-    // - one in the primary view and the other in the secondary
-    //   view
-    Q_ASSERT(m_viewTab[m_tabIndex].primaryView != 0);
-
-    KUrl urlA;
-    KUrl urlB;
-    KUrl::List urls = m_viewTab[m_tabIndex].primaryView->view()->selectedUrls();
-
-    switch (urls.count()) {
-    case 0: {
-        Q_ASSERT(m_viewTab[m_tabIndex].secondaryView != 0);
-        urls = m_viewTab[m_tabIndex].secondaryView->view()->selectedUrls();
-        Q_ASSERT(urls.count() == 2);
-        urlA = urls[0];
-        urlB = urls[1];
-        break;
+    // The default case (left button pressed) is handled in goForward().
+    if (buttons == Qt::MiddleButton) {
+        KUrlNavigator* urlNavigator = activeViewContainer()->urlNavigator();
+        const int index = urlNavigator->historyIndex() - 1;
+        openNewTab(urlNavigator->locationUrl(index));

     }
     }

+}

 
 

-    case 1: {
-        urlA = urls[0];
-        Q_ASSERT(m_viewTab[m_tabIndex].secondaryView != 0);
-        urls = m_viewTab[m_tabIndex].secondaryView->view()->selectedUrls();
-        Q_ASSERT(urls.count() == 1);
-        urlB = urls[0];
-        break;
+void DolphinMainWindow::goUp(Qt::MouseButtons buttons)
+{
+    // The default case (left button pressed) is handled in goUp().
+    if (buttons == Qt::MiddleButton) {
+        openNewTab(KIO::upUrl(activeViewContainer()->url()));

     }
     }

+}

 
 

-    case 2: {
-        urlA = urls[0];
-        urlB = urls[1];
-        break;
+void DolphinMainWindow::goHome(Qt::MouseButtons buttons)
+{
+    // The default case (left button pressed) is handled in goHome().
+    if (buttons == Qt::MiddleButton) {
+        openNewTab(GeneralSettings::self()->homeUrl());

     }
     }

+}

 
 

-    default: {
-        // may not happen: compareFiles may only get invoked if 2
-        // files are selected
-        Q_ASSERT(false);
-    }
+void DolphinMainWindow::compareFiles()
+{
+    const KFileItemList items = m_tabWidget->currentTabPage()->selectedItems();
+    if (items.count() != 2) {
+        // The action is disabled in this case, but it could have been triggered
+        // via D-Bus, see https://bugs.kde.org/show_bug.cgi?id=325517
+        return;

     }
 
     }
 

+    QUrl urlA = items.at(0).url();
+    QUrl urlB = items.at(1).url();
+

     QString command("kompare -c \"");
     QString command("kompare -c \"");

-    command.append(urlA.pathOrUrl());
+    command.append(urlA.toDisplayString(QUrl::PreferLocalFile));

     command.append("\" \"");
     command.append("\" \"");

-    command.append(urlB.pathOrUrl());
+    command.append(urlB.toDisplayString(QUrl::PreferLocalFile));

     command.append('\"');
     KRun::runCommand(command, "Kompare", "kompare", this);
 }
     command.append('\"');
     KRun::runCommand(command, "Kompare", "kompare", this);
 }


@@ -657,223 +674,332 @@ void DolphinMainWindow::toggleShowMenuBar()
 {
     const bool visible = menuBar()->isVisible();
     menuBar()->setVisible(!visible);
 {
     const bool visible = menuBar()->isVisible();
     menuBar()->setVisible(!visible);

+    if (visible) {
+        createControlButton();
+    } else {
+        deleteControlButton();
+    }

 }
 
 }
 

-void DolphinMainWindow::editSettings()
+void DolphinMainWindow::openTerminal()

 {
 {

-    DolphinSettingsDialog dialog(this);
-    dialog.exec();
+    QString dir(QDir::homePath());
+
+    // If the given directory is not local, it can still be the URL of an
+    // ioslave using UDS_LOCAL_PATH which to be converted first.
+    QUrl url = KIO::NetAccess::mostLocalUrl(m_activeViewContainer->url(), this);
+
+    //If the URL is local after the above conversion, set the directory.
+    if (url.isLocalFile()) {
+        dir = url.toLocalFile();
+    }
+
+    KToolInvocation::invokeTerminal(QString(), dir);

 }
 
 }
 

-void DolphinMainWindow::setActiveTab(int index)
+void DolphinMainWindow::editSettings()

 {
 {

-    Q_ASSERT(index >= 0);
-    Q_ASSERT(index < m_viewTab.count());
-    if (index == m_tabIndex) {
-        return;
+    if (!m_settingsDialog) {
+        DolphinViewContainer* container = activeViewContainer();
+        container->view()->writeSettings();
+
+        const QUrl url = container->url();
+        DolphinSettingsDialog* settingsDialog = new DolphinSettingsDialog(url, this);
+        connect(settingsDialog, &DolphinSettingsDialog::settingsChanged, this, &DolphinMainWindow::refreshViews);
+        settingsDialog->setAttribute(Qt::WA_DeleteOnClose);
+        settingsDialog->show();
+        m_settingsDialog = settingsDialog;
+    } else {
+        m_settingsDialog.data()->raise();

     }
     }

+}

 
 

-    // hide current tab content
-    m_viewTab[m_tabIndex].isPrimaryViewActive = m_viewTab[m_tabIndex].primaryView->isActive();
-    QSplitter* splitter = m_viewTab[m_tabIndex].splitter;
-    splitter->hide();
-    m_centralWidgetLayout->removeWidget(splitter);
+void DolphinMainWindow::handleUrl(const QUrl& url)
+{
+    delete m_lastHandleUrlStatJob;
+    m_lastHandleUrlStatJob = 0;

 
 

-    // show active tab content
-    m_tabIndex = index;
+    if (url.isLocalFile() && QFileInfo(url.toLocalFile()).isDir()) {
+        activeViewContainer()->setUrl(url);
+    } else if (KProtocolManager::supportsListing(url)) {
+        // stat the URL to see if it is a dir or not
+        m_lastHandleUrlStatJob = KIO::stat(url, KIO::HideProgressInfo);
+        if (m_lastHandleUrlStatJob->ui()) {
+            KJobWidgets::setWindow(m_lastHandleUrlStatJob, this);
+        }
+        connect(m_lastHandleUrlStatJob, &KIO::Job::result,
+                this, &DolphinMainWindow::slotHandleUrlStatFinished);

 
 

-    ViewTab& viewTab = m_viewTab[index];
-    m_centralWidgetLayout->addWidget(viewTab.splitter);
-    viewTab.primaryView->show();
-    if (viewTab.secondaryView != 0) {
-        viewTab.secondaryView->show();
+    } else {
+        new KRun(url, this); // Automatically deletes itself after being finished

     }
     }

-    viewTab.splitter->show();
-
-    setActiveViewContainer(viewTab.isPrimaryViewActive ? viewTab.primaryView :
-                                                         viewTab.secondaryView);

 }
 
 }
 

-void DolphinMainWindow::closeTab(int index)
+void DolphinMainWindow::slotHandleUrlStatFinished(KJob* job)

 {
 {

-    Q_ASSERT(index >= 0);
-    Q_ASSERT(index < m_viewTab.count());
-    if (m_viewTab.count() == 1) {
-          // the last tab may never get closed
-        return;
+    m_lastHandleUrlStatJob = 0;
+    const KIO::UDSEntry entry = static_cast<KIO::StatJob*>(job)->statResult();
+    const QUrl url = static_cast<KIO::StatJob*>(job)->url();
+    if (entry.isDir()) {
+        activeViewContainer()->setUrl(url);
+    } else {
+        new KRun(url, this);  // Automatically deletes itself after being finished

     }
     }

+}

 
 

-    if (index == m_tabIndex) {
-        // The tab that should be closed is the active tab. Activate the
-        // previous tab before closing the tab.
-        setActiveTab((index > 0) ? index - 1 : 1);
-    }
+void DolphinMainWindow::slotWriteStateChanged(bool isFolderWritable)
+{
+    newFileMenu()->setEnabled(isFolderWritable);
+}
+
+void DolphinMainWindow::openContextMenu(const QPoint& pos,
+                                        const KFileItem& item,
+                                        const QUrl& url,
+                                        const QList<QAction*>& customActions)
+{
+    QPointer<DolphinContextMenu> contextMenu = new DolphinContextMenu(this, pos, item, url);
+    contextMenu.data()->setCustomActions(customActions);
+    const DolphinContextMenu::Command command = contextMenu.data()->open();
+
+    switch (command) {
+    case DolphinContextMenu::OpenParentFolder:
+        changeUrl(KIO::upUrl(item.url()));
+        break;

 
 

-    // delete tab
-    m_viewTab[index].primaryView->deleteLater();
-    if (m_viewTab[index].secondaryView != 0) {
-        m_viewTab[index].secondaryView->deleteLater();
+    case DolphinContextMenu::OpenParentFolderInNewWindow: {
+
+        KRun::run("dolphin %u", {KIO::upUrl(item.url())}, this);
+        break;

     }
     }

-    m_viewTab[index].splitter->deleteLater();
-    m_viewTab.erase(m_viewTab.begin() + index);

 
 

-    m_tabBar->blockSignals(true);
-    m_tabBar->removeTab(index);
+    case DolphinContextMenu::OpenParentFolderInNewTab:
+        openNewTab(KIO::upUrl(item.url()));
+        break;

 
 

-    if (m_tabIndex > index) {
-        m_tabIndex--;
-        Q_ASSERT(m_tabIndex >= 0);
+    case DolphinContextMenu::None:
+    default:
+        break;

     }
 
     }
 

-    // if only one tab is left, also remove the tab entry so that
-    // closing the last tab is not possible
-    if (m_viewTab.count() == 1) {
-        m_tabBar->removeTab(0);
-    } else {
-        m_tabBar->blockSignals(false);
+    // Delete the menu, unless it has been deleted in its own nested event loop already.
+    if (contextMenu) {
+        contextMenu->deleteLater();

     }
 }
 
     }
 }
 

-void DolphinMainWindow::init()
+void DolphinMainWindow::updateControlMenu()

 {
 {

-    DolphinSettings& settings = DolphinSettings::instance();
+    QMenu* menu = qobject_cast<QMenu*>(sender());
+    Q_ASSERT(menu);

 
 

-    // Check whether Dolphin runs the first time. If yes then
-    // a proper default window size is given at the end of DolphinMainWindow::init().
-    GeneralSettings* generalSettings = settings.generalSettings();
-    const bool firstRun = generalSettings->firstRun();
-    if (firstRun) {
-        generalSettings->setViewPropsTimestamp(QDateTime::currentDateTime());
-    }
+    // All actions get cleared by QMenu::clear(). The sub-menus are deleted
+    // by connecting to the aboutToHide() signal from the parent-menu.
+    menu->clear();

 
 

-    setAcceptDrops(true);
+    KActionCollection* ac = actionCollection();

 
 

-    m_viewTab[m_tabIndex].splitter = new QSplitter(this);
+    // Add "Edit" actions
+    bool added = addActionToMenu(ac->action(KStandardAction::name(KStandardAction::Undo)), menu) |
+                 addActionToMenu(ac->action(KStandardAction::name(KStandardAction::Find)), menu) |
+                 addActionToMenu(ac->action("select_all"), menu) |
+                 addActionToMenu(ac->action("invert_selection"), menu);

 
 

-    setupActions();
-
-    const KUrl& homeUrl = generalSettings->homeUrl();
-    setCaption(homeUrl.fileName());
-    m_actionHandler = new DolphinViewActionHandler(actionCollection(), this);
-    connect(m_actionHandler, SIGNAL(actionBeingHandled()), SLOT(clearStatusBar()));
-    ViewProperties props(homeUrl);
-    m_viewTab[m_tabIndex].primaryView = new DolphinViewContainer(this,
-                                                                 m_viewTab[m_tabIndex].splitter,
-                                                                 homeUrl);
-
-    m_activeViewContainer = m_viewTab[m_tabIndex].primaryView;
-    connectViewSignals(m_activeViewContainer);
-    DolphinView* view = m_activeViewContainer->view();
-    view->reload();
-    m_activeViewContainer->show();
-    m_actionHandler->setCurrentView(view);
-
-    m_tabBar = new KTabBar(this);
-    m_tabBar->setCloseButtonEnabled(true);
-    connect(m_tabBar, SIGNAL(currentChanged(int)),
-            this, SLOT(setActiveTab(int)));
-    connect(m_tabBar, SIGNAL(closeRequest(int)),
-            this, SLOT(closeTab(int)));
-    m_tabBar->blockSignals(true);  // signals get unblocked after at least 2 tabs are open
-
-    QWidget* centralWidget = new QWidget(this);
-    m_centralWidgetLayout = new QVBoxLayout(centralWidget);
-    m_centralWidgetLayout->setSpacing(0);
-    m_centralWidgetLayout->setMargin(0);
-    m_centralWidgetLayout->addWidget(m_tabBar);
-    m_centralWidgetLayout->addWidget(m_viewTab[m_tabIndex].splitter);
-
-
-    setCentralWidget(centralWidget);
-    setupDockWidgets();
+    if (added) {
+        menu->addSeparator();
+    }

 
 

-    setupGUI(Keys | Save | Create | ToolBar);
-    createGUI();
+    // Add "View" actions
+    if (!GeneralSettings::showZoomSlider()) {
+        addActionToMenu(ac->action(KStandardAction::name(KStandardAction::ZoomIn)), menu);
+        addActionToMenu(ac->action(KStandardAction::name(KStandardAction::ZoomOut)), menu);
+        menu->addSeparator();
+    }

 
 

-    stateChanged("new_file");
-    setAutoSaveSettings();
+    added = addActionToMenu(ac->action("view_mode"), menu) |
+            addActionToMenu(ac->action("sort"), menu) |
+            addActionToMenu(ac->action("additional_info"), menu) |
+            addActionToMenu(ac->action("show_preview"), menu) |
+            addActionToMenu(ac->action("show_in_groups"), menu) |
+            addActionToMenu(ac->action("show_hidden_files"), menu);

 
 

-    QClipboard* clipboard = QApplication::clipboard();
-    connect(clipboard, SIGNAL(dataChanged()),
-            this, SLOT(updatePasteAction()));
-    updatePasteAction();
-    updateGoActions();
+    if (added) {
+        menu->addSeparator();
+    }

 
 

-    if (generalSettings->splitView()) {
-        toggleSplitView();
+    added = addActionToMenu(ac->action("split_view"), menu) |
+            addActionToMenu(ac->action("reload"), menu) |
+            addActionToMenu(ac->action("view_properties"), menu);
+    if (added) {
+        menu->addSeparator();

     }
     }

-    updateViewActions();

 
 

-    if (firstRun) {
-        // assure a proper default size if Dolphin runs the first time
-        resize(750, 500);
+    addActionToMenu(ac->action("panels"), menu);
+    QMenu* locationBarMenu = new QMenu(i18nc("@action:inmenu", "Location Bar"), menu);
+    locationBarMenu->addAction(ac->action("editable_location"));
+    locationBarMenu->addAction(ac->action("replace_location"));
+    menu->addMenu(locationBarMenu);
+
+    menu->addSeparator();
+
+    // Add "Go" menu
+    QMenu* goMenu = new QMenu(i18nc("@action:inmenu", "Go"), menu);
+    connect(menu, &QMenu::aboutToHide, goMenu, &QMenu::deleteLater);
+    goMenu->addAction(ac->action(KStandardAction::name(KStandardAction::Back)));
+    goMenu->addAction(ac->action(KStandardAction::name(KStandardAction::Forward)));
+    goMenu->addAction(ac->action(KStandardAction::name(KStandardAction::Up)));
+    goMenu->addAction(ac->action(KStandardAction::name(KStandardAction::Home)));
+    goMenu->addAction(ac->action("closed_tabs"));
+    menu->addMenu(goMenu);
+
+    // Add "Tool" menu
+    QMenu* toolsMenu = new QMenu(i18nc("@action:inmenu", "Tools"), menu);
+    connect(menu, &QMenu::aboutToHide, toolsMenu, &QMenu::deleteLater);
+    toolsMenu->addAction(ac->action("show_filter_bar"));
+    toolsMenu->addAction(ac->action("compare_files"));
+    toolsMenu->addAction(ac->action("open_terminal"));
+    toolsMenu->addAction(ac->action("change_remote_encoding"));
+    menu->addMenu(toolsMenu);
+
+    // Add "Settings" menu entries
+    addActionToMenu(ac->action(KStandardAction::name(KStandardAction::KeyBindings)), menu);
+    addActionToMenu(ac->action(KStandardAction::name(KStandardAction::ConfigureToolbars)), menu);
+    addActionToMenu(ac->action(KStandardAction::name(KStandardAction::Preferences)), menu);
+
+    // Add "Help" menu
+    QMenu* helpMenu = new QMenu(i18nc("@action:inmenu", "Help"), menu);
+    connect(menu, &QMenu::aboutToHide, helpMenu, &QMenu::deleteLater);
+    helpMenu->addAction(ac->action(KStandardAction::name(KStandardAction::HelpContents)));
+    helpMenu->addAction(ac->action(KStandardAction::name(KStandardAction::WhatsThis)));
+    helpMenu->addSeparator();
+    helpMenu->addAction(ac->action(KStandardAction::name(KStandardAction::ReportBug)));
+    helpMenu->addSeparator();
+    helpMenu->addAction(ac->action(KStandardAction::name(KStandardAction::SwitchApplicationLanguage)));
+    helpMenu->addSeparator();
+    helpMenu->addAction(ac->action(KStandardAction::name(KStandardAction::AboutApp)));
+    helpMenu->addAction(ac->action(KStandardAction::name(KStandardAction::AboutKDE)));
+    menu->addMenu(helpMenu);
+
+    menu->addSeparator();
+    addActionToMenu(ac->action(KStandardAction::name(KStandardAction::ShowMenubar)), menu);
+}
+
+void DolphinMainWindow::updateToolBar()
+{
+    if (!menuBar()->isVisible()) {
+        createControlButton();

     }
     }

+}

 
 

-    emit urlChanged(homeUrl);
+void DolphinMainWindow::slotControlButtonDeleted()
+{
+    m_controlButton = 0;
+    m_updateToolBarTimer->start();

 }
 
 }
 

-void DolphinMainWindow::setActiveViewContainer(DolphinViewContainer* viewContainer)
+void DolphinMainWindow::slotPlaceActivated(const QUrl& url)

 {
 {

-    Q_ASSERT(viewContainer != 0);
-    Q_ASSERT((viewContainer == m_viewTab[m_tabIndex].primaryView) ||
-             (viewContainer == m_viewTab[m_tabIndex].secondaryView));
-    if (m_activeViewContainer == viewContainer) {
-        return;
+    DolphinViewContainer* view = activeViewContainer();
+
+    if (view->url() == url) {
+        // We can end up here if the user clicked a device in the Places Panel
+        // which had been unmounted earlier, see https://bugs.kde.org/show_bug.cgi?id=161385.
+        reloadView();
+    } else {
+        changeUrl(url);

     }
     }

+}
+
+void DolphinMainWindow::closedTabsCountChanged(unsigned int count)
+{
+    actionCollection()->action("undo_close_tab")->setEnabled(count > 0);
+}
+
+void DolphinMainWindow::activeViewChanged(DolphinViewContainer* viewContainer)
+{
+    DolphinViewContainer* oldViewContainer = m_activeViewContainer;
+    Q_ASSERT(viewContainer);

 
 

-    m_activeViewContainer->setActive(false);

     m_activeViewContainer = viewContainer;
 
     m_activeViewContainer = viewContainer;
 

-    // Activating the view container might trigger a recursive setActiveViewContainer() call
-    // inside DolphinMainWindow::toggleActiveView() when having a split view. Temporary
-    // disconnect the activated() signal in this case:
-    disconnect(m_activeViewContainer->view(), SIGNAL(activated()), this, SLOT(toggleActiveView()));
-    m_activeViewContainer->setActive(true);
-    connect(m_activeViewContainer->view(), SIGNAL(activated()), this, SLOT(toggleActiveView()));
+    if (oldViewContainer) {
+        // Disconnect all signals between the old view container (container,
+        // view and url navigator) and main window.
+        oldViewContainer->disconnect(this);
+        oldViewContainer->view()->disconnect(this);
+        oldViewContainer->urlNavigator()->disconnect(this);
+    }
+
+    connectViewSignals(viewContainer);

 
     m_actionHandler->setCurrentView(viewContainer->view());
 
     updateHistory();
     updateEditActions();
 
     m_actionHandler->setCurrentView(viewContainer->view());
 
     updateHistory();
     updateEditActions();

+    updatePasteAction();

     updateViewActions();
     updateGoActions();
 
     updateViewActions();
     updateGoActions();
 

-    const KUrl& url = m_activeViewContainer->url();
-    const QString caption = url.fileName();
-    setCaption(caption);
-    if (m_viewTab.count() > 1) {
-        m_tabBar->setTabText(m_tabIndex, caption);
+    const QUrl url = viewContainer->url();
+    emit urlChanged(url);
+}
+
+void DolphinMainWindow::tabCountChanged(int count)
+{
+    const bool enableTabActions = (count > 1);
+    actionCollection()->action("close_tab")->setEnabled(enableTabActions);
+    actionCollection()->action("activate_next_tab")->setEnabled(enableTabActions);
+    actionCollection()->action("activate_prev_tab")->setEnabled(enableTabActions);
+}
+
+void DolphinMainWindow::setUrlAsCaption(const QUrl& url)
+{
+    QString caption;
+    if (!url.isLocalFile()) {
+        caption.append(url.scheme() + " - ");
+        if (!url.host().isEmpty()) {
+            caption.append(url.host() + " - ");
+        }

     }
 
     }
 

-    emit urlChanged(url);
+    QString fileName = url.adjusted(QUrl::StripTrailingSlash).fileName();
+    if (fileName.isEmpty()) {
+        fileName = '/';
+    }
+
+    caption.append(fileName);
+
+    setWindowTitle(caption);

 }
 
 void DolphinMainWindow::setupActions()
 {
     // setup 'File' menu
 }
 
 void DolphinMainWindow::setupActions()
 {
     // setup 'File' menu

-    m_newMenu = new DolphinNewMenu(this);
-    KMenu* menu = m_newMenu->menu();
+    m_newFileMenu = new DolphinNewFileMenu(actionCollection(), this);
+    QMenu* menu = m_newFileMenu->menu();

     menu->setTitle(i18nc("@title:menu Create new folder, file, link, etc.", "Create New"));
     menu->setTitle(i18nc("@title:menu Create new folder, file, link, etc.", "Create New"));

-    menu->setIcon(KIcon("document-new"));
-    connect(menu, SIGNAL(aboutToShow()),
-            this, SLOT(updateNewMenu()));
+    menu->setIcon(QIcon::fromTheme("document-new"));
+    m_newFileMenu->setDelayed(false);
+    connect(menu, &QMenu::aboutToShow,
+            this, &DolphinMainWindow::updateNewMenu);

 
 

-    KAction* newWindow = actionCollection()->addAction("new_window");
-    newWindow->setIcon(KIcon("window-new"));
+    QAction* newWindow = actionCollection()->addAction("new_window");
+    newWindow->setIcon(QIcon::fromTheme("window-new"));

     newWindow->setText(i18nc("@action:inmenu File", "New &Window"));
     newWindow->setText(i18nc("@action:inmenu File", "New &Window"));

-    newWindow->setShortcut(Qt::CTRL | Qt::Key_N);
-    connect(newWindow, SIGNAL(triggered()), this, SLOT(openNewMainWindow()));
+    actionCollection()->setDefaultShortcut(newWindow, Qt::CTRL | Qt::Key_N);
+    connect(newWindow, &QAction::triggered, this, &DolphinMainWindow::openNewMainWindow);

 
 

-    KAction* newTab = actionCollection()->addAction("new_tab");
-    newTab->setIcon(KIcon("tab-new"));
+    QAction* newTab = actionCollection()->addAction("new_tab");
+    newTab->setIcon(QIcon::fromTheme("tab-new"));

     newTab->setText(i18nc("@action:inmenu File", "New Tab"));
     newTab->setText(i18nc("@action:inmenu File", "New Tab"));

-    newTab->setShortcut(Qt::CTRL | Qt::SHIFT | Qt::Key_N);
-    connect(newTab, SIGNAL(triggered()), this, SLOT(openNewTab()));
+    actionCollection()->setDefaultShortcuts(newTab, {Qt::CTRL | Qt::Key_T, Qt::CTRL | Qt::SHIFT | Qt::Key_N});
+    connect(newTab, &QAction::triggered, this, static_cast<void(DolphinMainWindow::*)()>(&DolphinMainWindow::openNewActivatedTab));

 
 

-    KAction* properties = actionCollection()->addAction("properties");
-    properties->setText(i18nc("@action:inmenu File", "Properties"));
-    properties->setShortcut(Qt::ALT | Qt::Key_Return);
-    connect(properties, SIGNAL(triggered()), this, SLOT(properties()));
+    QAction* closeTab = actionCollection()->addAction("close_tab");
+    closeTab->setIcon(QIcon::fromTheme("tab-close"));
+    closeTab->setText(i18nc("@action:inmenu File", "Close Tab"));
+    actionCollection()->setDefaultShortcut(closeTab, Qt::CTRL | Qt::Key_W);
+    closeTab->setEnabled(false);
+    connect(closeTab, &QAction::triggered, m_tabWidget, static_cast<void(DolphinTabWidget::*)()>(&DolphinTabWidget::closeTab));

 
     KStandardAction::quit(this, SLOT(quit()), actionCollection());
 
 
     KStandardAction::quit(this, SLOT(quit()), actionCollection());
 


@@ -884,177 +1010,278 @@ void DolphinMainWindow::setupActions()
 
     // need to remove shift+del from cut action, else the shortcut for deletejob
     // doesn't work
 
     // need to remove shift+del from cut action, else the shortcut for deletejob
     // doesn't work

-    KAction* cut = KStandardAction::cut(this, SLOT(cut()), actionCollection());
-    KShortcut cutShortcut = cut->shortcut();
-    cutShortcut.remove(Qt::SHIFT + Qt::Key_Delete, KShortcut::KeepEmpty);
-    cut->setShortcut(cutShortcut);
+    QAction* cut = KStandardAction::cut(this, SLOT(cut()), actionCollection());
+    auto cutShortcuts = cut->shortcuts();
+    cutShortcuts.removeAll(QKeySequence(Qt::SHIFT | Qt::Key_Delete));
+    actionCollection()->setDefaultShortcuts(cut, cutShortcuts);

     KStandardAction::copy(this, SLOT(copy()), actionCollection());
     KStandardAction::copy(this, SLOT(copy()), actionCollection());

-    KStandardAction::paste(this, SLOT(paste()), actionCollection());
+    QAction* paste = KStandardAction::paste(this, SLOT(paste()), actionCollection());
+    // The text of the paste-action is modified dynamically by Dolphin
+    // (e. g. to "Paste One Folder"). To prevent that the size of the toolbar changes
+    // due to the long text, the text "Paste" is used:
+    paste->setIconText(i18nc("@action:inmenu Edit", "Paste"));

 
 

-    KAction* selectAll = actionCollection()->addAction("select_all");
+    KStandardAction::find(this, SLOT(find()), actionCollection());
+
+    QAction* selectAll = actionCollection()->addAction("select_all");

     selectAll->setText(i18nc("@action:inmenu Edit", "Select All"));
     selectAll->setText(i18nc("@action:inmenu Edit", "Select All"));

-    selectAll->setShortcut(Qt::CTRL + Qt::Key_A);
-    connect(selectAll, SIGNAL(triggered()), this, SLOT(selectAll()));
+    actionCollection()->setDefaultShortcut(selectAll, Qt::CTRL | Qt::Key_A);
+    connect(selectAll, &QAction::triggered, this, &DolphinMainWindow::selectAll);

 
 

-    KAction* invertSelection = actionCollection()->addAction("invert_selection");
+    QAction* invertSelection = actionCollection()->addAction("invert_selection");

     invertSelection->setText(i18nc("@action:inmenu Edit", "Invert Selection"));
     invertSelection->setText(i18nc("@action:inmenu Edit", "Invert Selection"));

-    invertSelection->setShortcut(Qt::CTRL | Qt::SHIFT | Qt::Key_A);
-    connect(invertSelection, SIGNAL(triggered()), this, SLOT(invertSelection()));
+    actionCollection()->setDefaultShortcut(invertSelection, Qt::CTRL | Qt::SHIFT | Qt::Key_A);
+    connect(invertSelection, &QAction::triggered, this, &DolphinMainWindow::invertSelection);

 
     // setup 'View' menu
     // (note that most of it is set up in DolphinViewActionHandler)
 
 
     // setup 'View' menu
     // (note that most of it is set up in DolphinViewActionHandler)
 

-    KAction* split = actionCollection()->addAction("split_view");
-    split->setShortcut(Qt::Key_F3);
-    updateSplitAction();
-    connect(split, SIGNAL(triggered()), this, SLOT(toggleSplitView()));
+    QAction* split = actionCollection()->addAction("split_view");
+    actionCollection()->setDefaultShortcut(split, Qt::Key_F3);
+    connect(split, &QAction::triggered, this, &DolphinMainWindow::toggleSplitView);

 
 

-    KAction* reload = actionCollection()->addAction("reload");
+    QAction* reload = actionCollection()->addAction("reload");

     reload->setText(i18nc("@action:inmenu View", "Reload"));
     reload->setText(i18nc("@action:inmenu View", "Reload"));

-    reload->setShortcut(Qt::Key_F5);
-    reload->setIcon(KIcon("view-refresh"));
-    connect(reload, SIGNAL(triggered()), this, SLOT(reloadView()));
+    actionCollection()->setDefaultShortcut(reload, Qt::Key_F5);
+    reload->setIcon(QIcon::fromTheme("view-refresh"));
+    connect(reload, &QAction::triggered, this, &DolphinMainWindow::reloadView);

 
 

-    KAction* stop = actionCollection()->addAction("stop");
+    QAction* stop = actionCollection()->addAction("stop");

     stop->setText(i18nc("@action:inmenu View", "Stop"));
     stop->setText(i18nc("@action:inmenu View", "Stop"));

-    stop->setIcon(KIcon("process-stop"));
-    connect(stop, SIGNAL(triggered()), this, SLOT(stopLoading()));
+    stop->setToolTip(i18nc("@info", "Stop loading"));
+    stop->setIcon(QIcon::fromTheme("process-stop"));
+    connect(stop, &QAction::triggered, this, &DolphinMainWindow::stopLoading);

 
 

-    // TODO: the naming "Show full Location" is currently confusing...
-    KToggleAction* showFullLocation = actionCollection()->add<KToggleAction>("editable_location");
-    showFullLocation->setText(i18nc("@action:inmenu Navigation Bar", "Show Full Location"));
-    showFullLocation->setShortcut(Qt::CTRL | Qt::Key_L);
-    connect(showFullLocation, SIGNAL(triggered()), this, SLOT(toggleEditLocation()));
+    KToggleAction* editableLocation = actionCollection()->add<KToggleAction>("editable_location");
+    editableLocation->setText(i18nc("@action:inmenu Navigation Bar", "Editable Location"));
+    actionCollection()->setDefaultShortcut(editableLocation, Qt::Key_F6);
+    connect(editableLocation, &KToggleAction::triggered, this, &DolphinMainWindow::toggleEditLocation);

 
 

-    KAction* editLocation = actionCollection()->addAction("edit_location");
-    editLocation->setText(i18nc("@action:inmenu Navigation Bar", "Edit Location"));
-    editLocation->setShortcut(Qt::Key_F6);
-    connect(editLocation, SIGNAL(triggered()), this, SLOT(editLocation()));
-
-    KAction* adjustViewProps = actionCollection()->addAction("view_properties");
-    adjustViewProps->setText(i18nc("@action:inmenu View", "Adjust View Properties..."));
-    connect(adjustViewProps, SIGNAL(triggered()), this, SLOT(adjustViewProperties()));
+    QAction* replaceLocation = actionCollection()->addAction("replace_location");
+    replaceLocation->setText(i18nc("@action:inmenu Navigation Bar", "Replace Location"));
+    actionCollection()->setDefaultShortcut(replaceLocation, Qt::CTRL | Qt::Key_L);
+    connect(replaceLocation, &QAction::triggered, this, &DolphinMainWindow::replaceLocation);

 
     // setup 'Go' menu
 
     // setup 'Go' menu

-    KAction* backAction = KStandardAction::back(this, SLOT(goBack()), actionCollection());
-    KShortcut backShortcut = backAction->shortcut();
-    backShortcut.setAlternate(Qt::Key_Backspace);
-    backAction->setShortcut(backShortcut);
+    QAction* backAction = KStandardAction::back(this, SLOT(goBack()), actionCollection());
+    auto backShortcuts = backAction->shortcuts();
+    backShortcuts.append(QKeySequence(Qt::Key_Backspace));
+    actionCollection()->setDefaultShortcuts(backAction, backShortcuts);
+
+    DolphinRecentTabsMenu* recentTabsMenu = new DolphinRecentTabsMenu(this);
+    actionCollection()->addAction("closed_tabs", recentTabsMenu);
+    connect(m_tabWidget, SIGNAL(rememberClosedTab(QUrl,QByteArray)),
+            recentTabsMenu, SLOT(rememberClosedTab(QUrl,QByteArray)));
+    connect(recentTabsMenu, SIGNAL(restoreClosedTab(QByteArray)),
+            m_tabWidget, SLOT(restoreClosedTab(QByteArray)));
+    connect(recentTabsMenu, SIGNAL(closedTabsCountChanged(uint)),
+            this, SLOT(closedTabsCountChanged(uint)));
+
+    QAction* undoCloseTab = actionCollection()->addAction("undo_close_tab");
+    undoCloseTab->setText(i18nc("@action:inmenu File", "Undo close tab"));
+    actionCollection()->setDefaultShortcut(undoCloseTab, Qt::CTRL | Qt::SHIFT | Qt::Key_T);
+    undoCloseTab->setIcon(QIcon::fromTheme("edit-undo"));
+    undoCloseTab->setEnabled(false);
+    connect(undoCloseTab, SIGNAL(triggered()), recentTabsMenu, SLOT(undoCloseTab()));
+
+    auto undoAction = actionCollection()->action(KStandardAction::name(KStandardAction::Undo));
+    undoAction->setEnabled(false); // undo should be disabled by default

 
     KStandardAction::forward(this, SLOT(goForward()), actionCollection());
     KStandardAction::up(this, SLOT(goUp()), actionCollection());
     KStandardAction::home(this, SLOT(goHome()), actionCollection());
 
     // setup 'Tools' menu
 
     KStandardAction::forward(this, SLOT(goForward()), actionCollection());
     KStandardAction::up(this, SLOT(goUp()), actionCollection());
     KStandardAction::home(this, SLOT(goHome()), actionCollection());
 
     // setup 'Tools' menu

-    QAction* findFile = actionCollection()->addAction("find_file");
-    findFile->setText(i18nc("@action:inmenu Tools", "Find File..."));
-    findFile->setShortcut(Qt::CTRL | Qt::Key_F);
-    findFile->setIcon(KIcon("edit-find"));
-    connect(findFile, SIGNAL(triggered()), this, SLOT(findFile()));
-
-    KToggleAction* showFilterBar = actionCollection()->add<KToggleAction>("show_filter_bar");
+    QAction* showFilterBar = actionCollection()->addAction("show_filter_bar");

     showFilterBar->setText(i18nc("@action:inmenu Tools", "Show Filter Bar"));
     showFilterBar->setText(i18nc("@action:inmenu Tools", "Show Filter Bar"));

-    showFilterBar->setShortcut(Qt::CTRL | Qt::Key_I);
-    connect(showFilterBar, SIGNAL(triggered(bool)), this, SLOT(toggleFilterBarVisibility(bool)));
+    showFilterBar->setIcon(QIcon::fromTheme("view-filter"));
+    actionCollection()->setDefaultShortcut(showFilterBar, Qt::CTRL | Qt::Key_I);
+    connect(showFilterBar, &QAction::triggered, this, &DolphinMainWindow::showFilterBar);

 
 

-    KAction* compareFiles = actionCollection()->addAction("compare_files");
+    QAction* compareFiles = actionCollection()->addAction("compare_files");

     compareFiles->setText(i18nc("@action:inmenu Tools", "Compare Files"));
     compareFiles->setText(i18nc("@action:inmenu Tools", "Compare Files"));

-    compareFiles->setIcon(KIcon("kompare"));
+    compareFiles->setIcon(QIcon::fromTheme("kompare"));

     compareFiles->setEnabled(false);
     compareFiles->setEnabled(false);

-    connect(compareFiles, SIGNAL(triggered()), this, SLOT(compareFiles()));
+    connect(compareFiles, &QAction::triggered, this, &DolphinMainWindow::compareFiles);
+
+    QAction* openTerminal = actionCollection()->addAction("open_terminal");
+    openTerminal->setText(i18nc("@action:inmenu Tools", "Open Terminal"));
+    openTerminal->setIcon(QIcon::fromTheme("utilities-terminal"));
+    actionCollection()->setDefaultShortcut(openTerminal, Qt::SHIFT | Qt::Key_F4);
+    connect(openTerminal, &QAction::triggered, this, &DolphinMainWindow::openTerminal);

 
     // setup 'Settings' menu
 
     // setup 'Settings' menu

-    m_showMenuBar = KStandardAction::showMenubar(this, SLOT(toggleShowMenuBar()), actionCollection());
+    KToggleAction* showMenuBar = KStandardAction::showMenubar(0, 0, actionCollection());
+    connect(showMenuBar, &KToggleAction::triggered,                   // Fixes #286822
+            this, &DolphinMainWindow::toggleShowMenuBar, Qt::QueuedConnection);

     KStandardAction::preferences(this, SLOT(editSettings()), actionCollection());
     KStandardAction::preferences(this, SLOT(editSettings()), actionCollection());

+
+    // not in menu actions
+    QList<QKeySequence> nextTabKeys = KStandardShortcut::tabNext();
+    nextTabKeys.append(QKeySequence(Qt::CTRL | Qt::Key_Tab));
+
+    QList<QKeySequence> prevTabKeys = KStandardShortcut::tabPrev();
+    prevTabKeys.append(QKeySequence(Qt::CTRL | Qt::SHIFT | Qt::Key_Tab));
+
+    QAction* activateNextTab = actionCollection()->addAction("activate_next_tab");
+    activateNextTab->setIconText(i18nc("@action:inmenu", "Next Tab"));
+    activateNextTab->setText(i18nc("@action:inmenu", "Activate Next Tab"));
+    activateNextTab->setEnabled(false);
+    connect(activateNextTab, &QAction::triggered, m_tabWidget, &DolphinTabWidget::activateNextTab);
+    actionCollection()->setDefaultShortcuts(activateNextTab, QApplication::isRightToLeft() ? prevTabKeys : nextTabKeys);
+
+    QAction* activatePrevTab = actionCollection()->addAction("activate_prev_tab");
+    activatePrevTab->setIconText(i18nc("@action:inmenu", "Previous Tab"));
+    activatePrevTab->setText(i18nc("@action:inmenu", "Activate Previous Tab"));
+    activatePrevTab->setEnabled(false);
+    connect(activatePrevTab, &QAction::triggered, m_tabWidget, &DolphinTabWidget::activatePrevTab);
+    actionCollection()->setDefaultShortcuts(activatePrevTab, QApplication::isRightToLeft() ? nextTabKeys : prevTabKeys);
+
+    // for context menu
+    QAction* openInNewTab = actionCollection()->addAction("open_in_new_tab");
+    openInNewTab->setText(i18nc("@action:inmenu", "Open in New Tab"));
+    openInNewTab->setIcon(QIcon::fromTheme("tab-new"));
+    connect(openInNewTab, &QAction::triggered, this, &DolphinMainWindow::openInNewTab);
+
+    QAction* openInNewTabs = actionCollection()->addAction("open_in_new_tabs");
+    openInNewTabs->setText(i18nc("@action:inmenu", "Open in New Tabs"));
+    openInNewTabs->setIcon(QIcon::fromTheme("tab-new"));
+    connect(openInNewTabs, &QAction::triggered, this, &DolphinMainWindow::openInNewTab);
+
+    QAction* openInNewWindow = actionCollection()->addAction("open_in_new_window");
+    openInNewWindow->setText(i18nc("@action:inmenu", "Open in New Window"));
+    openInNewWindow->setIcon(QIcon::fromTheme("window-new"));
+    connect(openInNewWindow, &QAction::triggered, this, &DolphinMainWindow::openInNewWindow);

 }
 
 void DolphinMainWindow::setupDockWidgets()
 {
 }
 
 void DolphinMainWindow::setupDockWidgets()
 {

-    // setup "Information"
-    QDockWidget* infoDock = new QDockWidget(i18nc("@title:window", "Information"));
+    const bool lock = GeneralSettings::lockPanels();
+
+    KDualAction* lockLayoutAction = actionCollection()->add<KDualAction>("lock_panels");
+    lockLayoutAction->setActiveText(i18nc("@action:inmenu Panels", "Unlock Panels"));
+    lockLayoutAction->setActiveIcon(QIcon::fromTheme("object-unlocked"));
+    lockLayoutAction->setInactiveText(i18nc("@action:inmenu Panels", "Lock Panels"));
+    lockLayoutAction->setInactiveIcon(QIcon::fromTheme("object-locked"));
+    lockLayoutAction->setActive(lock);
+    connect(lockLayoutAction, &KDualAction::triggered, this, &DolphinMainWindow::togglePanelLockState);
+
+    // Setup "Information"
+    DolphinDockWidget* infoDock = new DolphinDockWidget(i18nc("@title:window", "Information"));
+    infoDock->setLocked(lock);

     infoDock->setObjectName("infoDock");
     infoDock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
     infoDock->setObjectName("infoDock");
     infoDock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);

-    SidebarPage* infoWidget = new InfoSidebarPage(infoDock);
-    infoDock->setWidget(infoWidget);
+    InformationPanel* infoPanel = new InformationPanel(infoDock);
+    infoPanel->setCustomContextMenuActions({lockLayoutAction});
+    connect(infoPanel, &InformationPanel::urlActivated, this, &DolphinMainWindow::handleUrl);
+    infoDock->setWidget(infoPanel);

 
 

-    infoDock->toggleViewAction()->setText(i18nc("@title:window", "Information"));
-    infoDock->toggleViewAction()->setShortcut(Qt::Key_F11);
-    actionCollection()->addAction("show_info_panel", infoDock->toggleViewAction());
+    QAction* infoAction = infoDock->toggleViewAction();
+    createPanelAction(QIcon::fromTheme("dialog-information"), Qt::Key_F11, infoAction, "show_information_panel");

 
     addDockWidget(Qt::RightDockWidgetArea, infoDock);
 
     addDockWidget(Qt::RightDockWidgetArea, infoDock);

-    connect(this, SIGNAL(urlChanged(KUrl)),
-            infoWidget, SLOT(setUrl(KUrl)));
-    connect(this, SIGNAL(selectionChanged(KFileItemList)),
-            infoWidget, SLOT(setSelection(KFileItemList)));
-    connect(this, SIGNAL(requestItemInfo(KFileItem)),
-            infoWidget, SLOT(requestDelayedItemInfo(KFileItem)));
-
-    // setup "Tree View"
-    QDockWidget* treeViewDock = new QDockWidget(i18nc("@title:window", "Folders"));
-    treeViewDock->setObjectName("treeViewDock");
-    treeViewDock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
-    TreeViewSidebarPage* treeWidget = new TreeViewSidebarPage(treeViewDock);
-    treeViewDock->setWidget(treeWidget);
-
-    treeViewDock->toggleViewAction()->setText(i18nc("@title:window", "Folders"));
-    treeViewDock->toggleViewAction()->setShortcut(Qt::Key_F7);
-    actionCollection()->addAction("show_folders_panel", treeViewDock->toggleViewAction());
-
-    addDockWidget(Qt::LeftDockWidgetArea, treeViewDock);
-    connect(this, SIGNAL(urlChanged(KUrl)),
-            treeWidget, SLOT(setUrl(KUrl)));
-    connect(treeWidget, SIGNAL(changeUrl(KUrl)),
-            this, SLOT(changeUrl(KUrl)));
-    connect(treeWidget, SIGNAL(changeSelection(KFileItemList)),
-            this, SLOT(changeSelection(KFileItemList)));
-    connect(treeWidget, SIGNAL(urlsDropped(KUrl::List, KUrl)),
-            this, SLOT(dropUrls(KUrl::List, KUrl)));
-
-    // setup "Terminal"
+    connect(this, &DolphinMainWindow::urlChanged,
+            infoPanel, &InformationPanel::setUrl);
+    connect(this, &DolphinMainWindow::selectionChanged,
+            infoPanel, &InformationPanel::setSelection);
+    connect(this, &DolphinMainWindow::requestItemInfo,
+            infoPanel, &InformationPanel::requestDelayedItemInfo);
+
+    // Setup "Folders"
+    DolphinDockWidget* foldersDock = new DolphinDockWidget(i18nc("@title:window", "Folders"));
+    foldersDock->setLocked(lock);
+    foldersDock->setObjectName("foldersDock");
+    foldersDock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
+    FoldersPanel* foldersPanel = new FoldersPanel(foldersDock);
+    foldersPanel->setCustomContextMenuActions({lockLayoutAction});
+    foldersDock->setWidget(foldersPanel);
+
+    QAction* foldersAction = foldersDock->toggleViewAction();
+    createPanelAction(QIcon::fromTheme("folder"), Qt::Key_F7, foldersAction, "show_folders_panel");
+
+    addDockWidget(Qt::LeftDockWidgetArea, foldersDock);
+    connect(this, &DolphinMainWindow::urlChanged,
+            foldersPanel, &FoldersPanel::setUrl);
+    connect(foldersPanel, &FoldersPanel::folderActivated,
+            this, &DolphinMainWindow::changeUrl);
+    connect(foldersPanel, &FoldersPanel::folderMiddleClicked,
+            this, &DolphinMainWindow::openNewTab);
+    connect(foldersPanel, &FoldersPanel::errorMessage,
+            this, &DolphinMainWindow::showErrorMessage);
+
+    // Setup "Terminal"

 #ifndef Q_OS_WIN
 #ifndef Q_OS_WIN

-    QDockWidget* terminalDock = new QDockWidget(i18nc("@title:window Shell terminal", "Terminal"));
+    DolphinDockWidget* terminalDock = new DolphinDockWidget(i18nc("@title:window Shell terminal", "Terminal"));
+    terminalDock->setLocked(lock);

     terminalDock->setObjectName("terminalDock");
     terminalDock->setAllowedAreas(Qt::TopDockWidgetArea | Qt::BottomDockWidgetArea);
     terminalDock->setObjectName("terminalDock");
     terminalDock->setAllowedAreas(Qt::TopDockWidgetArea | Qt::BottomDockWidgetArea);

-    SidebarPage* terminalWidget = new TerminalSidebarPage(terminalDock);
-    terminalDock->setWidget(terminalWidget);
+    TerminalPanel* terminalPanel = new TerminalPanel(terminalDock);
+    terminalPanel->setCustomContextMenuActions({lockLayoutAction});
+    terminalDock->setWidget(terminalPanel);

 
 

-    connect(terminalWidget, SIGNAL(hideTerminalSidebarPage()), terminalDock, SLOT(hide()));
+    connect(terminalPanel, &TerminalPanel::hideTerminalPanel, terminalDock, &DolphinDockWidget::hide);
+    connect(terminalPanel, &TerminalPanel::changeUrl, this, &DolphinMainWindow::slotTerminalDirectoryChanged);
+    connect(terminalDock, &DolphinDockWidget::visibilityChanged,
+            terminalPanel, &TerminalPanel::dockVisibilityChanged);

 
 

-    terminalDock->toggleViewAction()->setText(i18nc("@title:window Shell terminal", "Terminal"));
-    terminalDock->toggleViewAction()->setShortcut(Qt::Key_F4);
-    actionCollection()->addAction("show_terminal_panel", terminalDock->toggleViewAction());
+    QAction* terminalAction = terminalDock->toggleViewAction();
+    createPanelAction(QIcon::fromTheme("utilities-terminal"), Qt::Key_F4, terminalAction, "show_terminal_panel");

 
     addDockWidget(Qt::BottomDockWidgetArea, terminalDock);
 
     addDockWidget(Qt::BottomDockWidgetArea, terminalDock);

-    connect(this, SIGNAL(urlChanged(KUrl)),
-            terminalWidget, SLOT(setUrl(KUrl)));
+    connect(this, &DolphinMainWindow::urlChanged,
+            terminalPanel, &TerminalPanel::setUrl);

 #endif
 
 #endif
 

-    const bool firstRun = DolphinSettings::instance().generalSettings()->firstRun();
-    if (firstRun) {
-        treeViewDock->hide();
+    if (GeneralSettings::version() < 200) {
+        infoDock->hide();
+        foldersDock->hide();

 #ifndef Q_OS_WIN
         terminalDock->hide();
 #endif
     }
 
 #ifndef Q_OS_WIN
         terminalDock->hide();
 #endif
     }
 

-    QDockWidget* placesDock = new QDockWidget(i18nc("@title:window", "Places"));
+    // Setup "Places"
+    DolphinDockWidget* placesDock = new DolphinDockWidget(i18nc("@title:window", "Places"));
+    placesDock->setLocked(lock);

     placesDock->setObjectName("placesDock");
     placesDock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
 
     placesDock->setObjectName("placesDock");
     placesDock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
 

-    DolphinFilePlacesView* placesView = new DolphinFilePlacesView(placesDock);
-    placesDock->setWidget(placesView);
-    placesView->setModel(DolphinSettings::instance().placesModel());
-    placesView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+    PlacesPanel* placesPanel = new PlacesPanel(placesDock);
+    placesPanel->setCustomContextMenuActions({lockLayoutAction});
+    placesDock->setWidget(placesPanel);

 
 

-    placesDock->toggleViewAction()->setText(i18nc("@title:window", "Places"));
-    placesDock->toggleViewAction()->setShortcut(Qt::Key_F9);
-    actionCollection()->addAction("show_places_panel", placesDock->toggleViewAction());
+    QAction* placesAction = placesDock->toggleViewAction();
+    createPanelAction(QIcon::fromTheme("bookmarks"), Qt::Key_F9, placesAction, "show_places_panel");

 
     addDockWidget(Qt::LeftDockWidgetArea, placesDock);
 
     addDockWidget(Qt::LeftDockWidgetArea, placesDock);

-    connect(placesView, SIGNAL(urlChanged(KUrl)),
-            this, SLOT(changeUrl(KUrl)));
-    connect(this, SIGNAL(urlChanged(KUrl)),
-            placesView, SLOT(setUrl(KUrl)));
+    connect(placesPanel, &PlacesPanel::placeActivated,
+            this, &DolphinMainWindow::slotPlaceActivated);
+    connect(placesPanel, SIGNAL(placeMiddleClicked(QUrl)),
+            this, SLOT(openNewTab(QUrl)));
+    connect(placesPanel, &PlacesPanel::errorMessage,
+            this, &DolphinMainWindow::showErrorMessage);
+    connect(this, &DolphinMainWindow::urlChanged,
+            placesPanel, &PlacesPanel::setUrl);
+    connect(placesDock, &DolphinDockWidget::visibilityChanged,
+            m_tabWidget, &DolphinTabWidget::slotPlacesPanelVisibilityChanged);
+    connect(this, &DolphinMainWindow::settingsChanged,
+           placesPanel, &PlacesPanel::readSettings);
+
+    m_tabWidget->slotPlacesPanelVisibilityChanged(placesPanel->isVisible());
+
+    // Add actions into the "Panels" menu
+    KActionMenu* panelsMenu = new KActionMenu(i18nc("@action:inmenu View", "Panels"), this);
+    actionCollection()->addAction("panels", panelsMenu);
+    panelsMenu->setDelayed(false);
+    const KActionCollection* ac = actionCollection();
+    panelsMenu->addAction(ac->action("show_places_panel"));
+    panelsMenu->addAction(ac->action("show_information_panel"));
+    panelsMenu->addAction(ac->action("show_folders_panel"));
+#ifndef Q_OS_WIN
+    panelsMenu->addAction(ac->action("show_terminal_panel"));
+#endif
+    panelsMenu->addSeparator();
+    panelsMenu->addAction(lockLayoutAction);

 }
 
 void DolphinMainWindow::updateEditActions()
 }
 
 void DolphinMainWindow::updateEditActions()


@@ -1065,28 +1292,22 @@ void DolphinMainWindow::updateEditActions()
     } else {
         stateChanged("has_selection");
 
     } else {
         stateChanged("has_selection");
 

-        QAction* renameAction = actionCollection()->action("rename");
-        if (renameAction != 0) {
-            renameAction->setEnabled(true);
-        }
-
-        bool enableMoveToTrash = true;
+        KActionCollection* col = actionCollection();
+        QAction* renameAction      = col->action("rename");
+        QAction* moveToTrashAction = col->action("move_to_trash");
+        QAction* deleteAction      = col->action("delete");
+        QAction* cutAction         = col->action(KStandardAction::name(KStandardAction::Cut));
+        QAction* deleteWithTrashShortcut = col->action("delete_shortcut"); // see DolphinViewActionHandler

 
 

-        KFileItemList::const_iterator it = list.begin();
-        const KFileItemList::const_iterator end = list.end();
-        while (it != end) {
-            const KUrl& url = (*it).url();
-            // only enable the 'Move to Trash' action for local files
-            if (!url.isLocalFile()) {
-                enableMoveToTrash = false;
-            }
-            ++it;
-        }
+        KFileItemListProperties capabilities(list);
+        const bool enableMoveToTrash = capabilities.isLocal() && capabilities.supportsMoving();

 
 

-        QAction* moveToTrashAction = actionCollection()->action("move_to_trash");
+        renameAction->setEnabled(capabilities.supportsMoving());

         moveToTrashAction->setEnabled(enableMoveToTrash);
         moveToTrashAction->setEnabled(enableMoveToTrash);

+        deleteAction->setEnabled(capabilities.supportsDeleting());
+        deleteWithTrashShortcut->setEnabled(capabilities.supportsDeleting() && !enableMoveToTrash);
+        cutAction->setEnabled(capabilities.supportsMoving());

     }
     }

-    updatePasteAction();

 }
 
 void DolphinMainWindow::updateViewActions()
 }
 
 void DolphinMainWindow::updateViewActions()


@@ -1106,63 +1327,179 @@ void DolphinMainWindow::updateViewActions()
 void DolphinMainWindow::updateGoActions()
 {
     QAction* goUpAction = actionCollection()->action(KStandardAction::name(KStandardAction::Up));
 void DolphinMainWindow::updateGoActions()
 {
     QAction* goUpAction = actionCollection()->action(KStandardAction::name(KStandardAction::Up));

-    const KUrl& currentUrl = m_activeViewContainer->url();
-    goUpAction->setEnabled(currentUrl.upUrl() != currentUrl);
+    const QUrl currentUrl = m_activeViewContainer->url();
+    goUpAction->setEnabled(KIO::upUrl(currentUrl) != currentUrl);
+}
+
+void DolphinMainWindow::createControlButton()
+{
+    if (m_controlButton) {
+        return;
+    }
+    Q_ASSERT(!m_controlButton);
+
+    m_controlButton = new QToolButton(this);
+    m_controlButton->setIcon(QIcon::fromTheme("applications-system"));
+    m_controlButton->setText(i18nc("@action", "Control"));
+    m_controlButton->setPopupMode(QToolButton::InstantPopup);
+    m_controlButton->setToolButtonStyle(toolBar()->toolButtonStyle());
+
+    QMenu* controlMenu = new QMenu(m_controlButton);
+    connect(controlMenu, &QMenu::aboutToShow, this, &DolphinMainWindow::updateControlMenu);
+
+    m_controlButton->setMenu(controlMenu);
+
+    toolBar()->addWidget(m_controlButton);
+    connect(toolBar(), &KToolBar::iconSizeChanged,
+            m_controlButton, &QToolButton::setIconSize);
+    connect(toolBar(), &KToolBar::toolButtonStyleChanged,
+            m_controlButton, &QToolButton::setToolButtonStyle);
+
+    // The added widgets are owned by the toolbar and may get deleted when e.g. the toolbar
+    // gets edited. In this case we must add them again. The adding is done asynchronously by
+    // m_updateToolBarTimer.
+    connect(m_controlButton, &QToolButton::destroyed, this, &DolphinMainWindow::slotControlButtonDeleted);
+    m_updateToolBarTimer = new QTimer(this);
+    m_updateToolBarTimer->setInterval(500);
+    connect(m_updateToolBarTimer, &QTimer::timeout, this, &DolphinMainWindow::updateToolBar);
+}
+
+void DolphinMainWindow::deleteControlButton()
+{
+    delete m_controlButton;
+    m_controlButton = 0;
+
+    delete m_updateToolBarTimer;
+    m_updateToolBarTimer = 0;
+}
+
+bool DolphinMainWindow::addActionToMenu(QAction* action, QMenu* menu)
+{
+    Q_ASSERT(action);
+    Q_ASSERT(menu);
+
+    const KToolBar* toolBarWidget = toolBar();
+    foreach (const QWidget* widget, action->associatedWidgets()) {
+        if (widget == toolBarWidget) {
+            return false;
+        }
+    }
+
+    menu->addAction(action);
+    return true;
+}
+
+void DolphinMainWindow::refreshViews()
+{
+    m_tabWidget->refreshViews();
+
+    if (GeneralSettings::modifiedStartupSettings()) {
+        // The startup settings have been changed by the user (see bug #254947).
+        // Synchronize the split-view setting with the active view:
+        const bool splitView = GeneralSettings::splitView();
+        m_tabWidget->currentTabPage()->setSplitViewEnabled(splitView);
+        updateSplitAction();
+    }
+
+    emit settingsChanged();

 }
 
 void DolphinMainWindow::clearStatusBar()
 {
 }
 
 void DolphinMainWindow::clearStatusBar()
 {

-    m_activeViewContainer->statusBar()->clear();
+    m_activeViewContainer->statusBar()->resetToDefaultText();

 }
 
 void DolphinMainWindow::connectViewSignals(DolphinViewContainer* container)
 {
 }
 
 void DolphinMainWindow::connectViewSignals(DolphinViewContainer* container)
 {

-    connect(container, SIGNAL(showFilterBarChanged(bool)),
-            this, SLOT(updateFilterBarAction(bool)));
-
-    DolphinView* view = container->view();
-    connect(view, SIGNAL(selectionChanged(KFileItemList)),
-            this, SLOT(slotSelectionChanged(KFileItemList)));
-    connect(view, SIGNAL(requestItemInfo(KFileItem)),
-            this, SLOT(slotRequestItemInfo(KFileItem)));
-    connect(view, SIGNAL(activated()),
-            this, SLOT(toggleActiveView()));
-    connect(view, SIGNAL(doingOperation(KonqFileUndoManager::CommandType)),
-            this, SLOT(slotDoingOperation(KonqFileUndoManager::CommandType)));
-    connect(view, SIGNAL(tabRequested(const KUrl&)),
-            this, SLOT(openNewTab(const KUrl&)));
+    connect(container, &DolphinViewContainer::showFilterBarChanged,
+            this, &DolphinMainWindow::updateFilterBarAction);
+    connect(container, &DolphinViewContainer::writeStateChanged,
+            this, &DolphinMainWindow::slotWriteStateChanged);
+
+    const DolphinView* view = container->view();
+    connect(view, &DolphinView::selectionChanged,
+            this, &DolphinMainWindow::slotSelectionChanged);
+    connect(view, &DolphinView::requestItemInfo,
+            this, &DolphinMainWindow::requestItemInfo);
+    connect(view, &DolphinView::tabRequested,
+            this, &DolphinMainWindow::openNewTab);
+    connect(view, &DolphinView::requestContextMenu,
+            this, &DolphinMainWindow::openContextMenu);
+    connect(view, &DolphinView::directoryLoadingStarted,
+            this, &DolphinMainWindow::enableStopAction);
+    connect(view, &DolphinView::directoryLoadingCompleted,
+            this, &DolphinMainWindow::disableStopAction);
+    connect(view, &DolphinView::directoryLoadingCompleted,
+            this, &DolphinMainWindow::slotDirectoryLoadingCompleted);
+    connect(view, &DolphinView::goBackRequested,
+            this, static_cast<void(DolphinMainWindow::*)()>(&DolphinMainWindow::goBack));
+    connect(view, &DolphinView::goForwardRequested,
+            this, static_cast<void(DolphinMainWindow::*)()>(&DolphinMainWindow::goForward));

 
     const KUrlNavigator* navigator = container->urlNavigator();
 
     const KUrlNavigator* navigator = container->urlNavigator();

-    connect(navigator, SIGNAL(urlChanged(const KUrl&)),
-            this, SLOT(changeUrl(const KUrl&)));
-    connect(navigator, SIGNAL(historyChanged()),
-            this, SLOT(updateHistory()));
-    connect(navigator, SIGNAL(editableStateChanged(bool)),
-            this, SLOT(slotEditableStateChanged(bool)));
+    connect(navigator, &KUrlNavigator::urlChanged,
+            this, &DolphinMainWindow::changeUrl);
+    connect(navigator, &KUrlNavigator::historyChanged,
+            this, &DolphinMainWindow::updateHistory);
+    connect(navigator, &KUrlNavigator::editableStateChanged,
+            this, &DolphinMainWindow::slotEditableStateChanged);
+    connect(navigator, &KUrlNavigator::tabRequested,
+            this, &DolphinMainWindow::openNewTab);

 }
 
 void DolphinMainWindow::updateSplitAction()
 {
     QAction* splitAction = actionCollection()->action("split_view");
 }
 
 void DolphinMainWindow::updateSplitAction()
 {
     QAction* splitAction = actionCollection()->action("split_view");

-    if (m_viewTab[m_tabIndex].secondaryView != 0) {
-        if (m_activeViewContainer == m_viewTab[m_tabIndex].primaryView) {
-            splitAction->setText(i18nc("@action:intoolbar Close right view", "Close"));
-            splitAction->setIcon(KIcon("view-right-close"));
-        } else {
+    const DolphinTabPage* tabPage = m_tabWidget->currentTabPage();
+    if (tabPage->splitViewEnabled()) {
+        if (tabPage->primaryViewActive()) {

             splitAction->setText(i18nc("@action:intoolbar Close left view", "Close"));
             splitAction->setText(i18nc("@action:intoolbar Close left view", "Close"));

-            splitAction->setIcon(KIcon("view-left-close"));
+            splitAction->setToolTip(i18nc("@info", "Close left view"));
+            splitAction->setIcon(QIcon::fromTheme("view-left-close"));
+        } else {
+            splitAction->setText(i18nc("@action:intoolbar Close right view", "Close"));
+            splitAction->setToolTip(i18nc("@info", "Close right view"));
+            splitAction->setIcon(QIcon::fromTheme("view-right-close"));

         }
     } else {
         splitAction->setText(i18nc("@action:intoolbar Split view", "Split"));
         }
     } else {
         splitAction->setText(i18nc("@action:intoolbar Split view", "Split"));

-        splitAction->setIcon(KIcon("view-right-new"));
+        splitAction->setToolTip(i18nc("@info", "Split view"));
+        splitAction->setIcon(QIcon::fromTheme("view-right-new"));

     }
 }
 
     }
 }
 

-DolphinMainWindow::UndoUiInterface::UndoUiInterface(DolphinMainWindow* mainWin) :
-    KonqFileUndoManager::UiInterface(mainWin),
-    m_mainWin(mainWin)
+bool DolphinMainWindow::isKompareInstalled() const
+{
+    static bool initialized = false;
+    static bool installed = false;
+    if (!initialized) {
+        // TODO: maybe replace this approach later by using a menu
+        // plugin like kdiff3plugin.cpp
+        installed = !QStandardPaths::findExecutable(QStringLiteral("kompare")).isEmpty();
+        initialized = true;
+    }
+    return installed;
+}
+
+void DolphinMainWindow::createPanelAction(const QIcon& icon,
+                                          const QKeySequence& shortcut,
+                                          QAction* dockAction,
+                                          const QString& actionName)
+{
+    QAction* panelAction = actionCollection()->addAction(actionName);
+    panelAction->setCheckable(true);
+    panelAction->setChecked(dockAction->isChecked());
+    panelAction->setText(dockAction->text());
+    panelAction->setIcon(icon);
+    actionCollection()->setDefaultShortcut(panelAction, shortcut);
+
+    connect(panelAction, &QAction::triggered, dockAction, &QAction::trigger);
+    connect(dockAction, &QAction::toggled, panelAction, &QAction::setChecked);
+}
+
+DolphinMainWindow::UndoUiInterface::UndoUiInterface() :
+    KIO::FileUndoManager::UiInterface()

 {
 {

-    Q_ASSERT(m_mainWin != 0);

 }
 
 DolphinMainWindow::UndoUiInterface::~UndoUiInterface()
 }
 
 DolphinMainWindow::UndoUiInterface::~UndoUiInterface()


@@ -1171,8 +1508,12 @@ DolphinMainWindow::UndoUiInterface::~UndoUiInterface()
 
 void DolphinMainWindow::UndoUiInterface::jobError(KIO::Job* job)
 {
 
 void DolphinMainWindow::UndoUiInterface::jobError(KIO::Job* job)
 {

-    DolphinStatusBar* statusBar = m_mainWin->activeViewContainer()->statusBar();
-    statusBar->setMessage(job->errorString(), DolphinStatusBar::Error);
+    DolphinMainWindow* mainWin= qobject_cast<DolphinMainWindow *>(parentWidget());
+    if (mainWin) {
+        DolphinViewContainer* container = mainWin->activeViewContainer();
+        container->showMessage(job->errorString(), DolphinViewContainer::Error);
+    } else {
+        KIO::FileUndoManager::UiInterface::jobError(job);
+    }

 }
 
 }
 

-#include "dolphinmainwindow.moc"