X-Git-Url: https://cloud.milkyroute.net/gitweb/dolphin.git/blobdiff_plain/2f045c60109e0a5811f68bcce617236e3478e402..037d5db85bb0bd798d40c557d424c5c9b87457a8:/src/dolphinmainwindow.cpp

diff --git a/src/dolphinmainwindow.cpp b/src/dolphinmainwindow.cpp
index 1fd990344..df04cee69 100644
--- a/src/dolphinmainwindow.cpp
+++ b/src/dolphinmainwindow.cpp
@@ -25,7 +25,10 @@
 #include "dolphindockwidget.h"
 #include "dolphincontextmenu.h"
 #include "dolphinnewfilemenu.h"
+#include "dolphinrecenttabsmenu.h"
+#include "dolphintabwidget.h"
 #include "dolphinviewcontainer.h"
+#include "dolphintabpage.h"
 #include "panels/folders/folderspanel.h"
 #include "panels/places/placespanel.h"
 #include "panels/information/informationpanel.h"
@@ -43,54 +46,38 @@
 
 #include "dolphin_generalsettings.h"
 
-#include <KAcceleratorManager>
-#include <KAction>
 #include <KActionCollection>
 #include <KActionMenu>
 #include <KConfig>
-#include <KDesktopFile>
 #include <kdeversion.h>
 #include <kdualaction.h>
-#include <KFileDialog>
-#include <KGlobal>
 #include <KDialog>
 #include <KJobWidgets>
-#include <KMimeType>
 #include <KLineEdit>
 #include <KToolBar>
-#include <KIcon>
-#include <KIconLoader>
 #include <KIO/NetAccess>
 #include <KIO/JobUiDelegate>
-#include <KInputDialog>
-#include <KLocale>
+#include <KLocalizedString>
 #include <KProtocolManager>
-#include <KMenu>
-#include <KMenuBar>
+#include <QMenu>
 #include <KMessageBox>
 #include <KFileItemListProperties>
-#include <konqmimedata.h>
-#include <KProtocolInfo>
 #include <KRun>
 #include <KShell>
-#include <KStandardDirs>
-#include <kstatusbar.h>
 #include <KStandardAction>
-#include <ktabbar.h>
 #include <KToggleAction>
 #include <KUrlNavigator>
-#include <KUrl>
-#include <KUrlComboBox>
 #include <KToolInvocation>
+#include <KUrlComboBox>
 
-#include <QDesktopWidget>
-#include <QDBusMessage>
-#include <QKeyEvent>
+#include <QMenuBar>
 #include <QClipboard>
 #include <QToolButton>
-#include <QSplitter>
 #include <QTimer>
+#include <QStandardPaths>
 #include <QPushButton>
+#include <QCloseEvent>
+#include <QShowEvent>
 
 namespace {
     // Used for GeneralSettings::version() to determine whether
@@ -98,27 +85,11 @@ namespace {
     const int CurrentDolphinVersion = 200;
 };
 
-/*
- * Remembers the tab configuration if a tab has been closed.
- * Each closed tab can be restored by the menu
- * "Go -> Recently Closed Tabs".
- */
-struct ClosedTab
-{
-    KUrl primaryUrl;
-    KUrl secondaryUrl;
-    bool isSplit;
-};
-Q_DECLARE_METATYPE(ClosedTab)
-
 DolphinMainWindow::DolphinMainWindow() :
     KXmlGuiWindow(0),
     m_newFileMenu(0),
-    m_tabBar(0),
+    m_tabWidget(0),
     m_activeViewContainer(0),
-    m_centralWidgetLayout(0),
-    m_tabIndex(0),
-    m_viewTab(),
     m_actionHandler(0),
     m_remoteEncoding(0),
     m_settingsDialog(),
@@ -128,24 +99,20 @@ DolphinMainWindow::DolphinMainWindow() :
 {
     setObjectName("Dolphin#");
 
-    m_viewTab.append(ViewTab());
-    ViewTab& viewTab = m_viewTab[m_tabIndex];
-    viewTab.wasActive = true; // The first opened tab is automatically active
-
-    connect(&DolphinNewFileMenuObserver::instance(), SIGNAL(errorMessage(QString)),
-            this, SLOT(showErrorMessage(QString)));
+    connect(&DolphinNewFileMenuObserver::instance(), &DolphinNewFileMenuObserver::errorMessage,
+            this, &DolphinMainWindow::showErrorMessage);
 
     KIO::FileUndoManager* undoManager = KIO::FileUndoManager::self();
     undoManager->setUiInterface(new UndoUiInterface());
 
-    connect(undoManager, SIGNAL(undoAvailable(bool)),
-            this, SLOT(slotUndoAvailable(bool)));
-    connect(undoManager, SIGNAL(undoTextChanged(QString)),
-            this, SLOT(slotUndoTextChanged(QString)));
-    connect(undoManager, SIGNAL(jobRecordingStarted(CommandType)),
-            this, SLOT(clearStatusBar()));
-    connect(undoManager, SIGNAL(jobRecordingFinished(CommandType)),
-            this, SLOT(showCommand(CommandType)));
+    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);
@@ -155,75 +122,33 @@ DolphinMainWindow::DolphinMainWindow() :
 
     setAcceptDrops(true);
 
-    viewTab.splitter = new QSplitter(this);
-    viewTab.splitter->setChildrenCollapsible(false);
+    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();
 
-    const KUrl homeUrl(generalSettings->homeUrl());
-    setUrlAsCaption(homeUrl);
     m_actionHandler = new DolphinViewActionHandler(actionCollection(), this);
-    connect(m_actionHandler, SIGNAL(actionBeingHandled()), SLOT(clearStatusBar()));
-    connect(m_actionHandler, SIGNAL(createDirectory()), SLOT(createDirectory()));
-
-    viewTab.primaryView = createViewContainer(homeUrl, viewTab.splitter);
-
-    m_activeViewContainer = viewTab.primaryView;
-    connectViewSignals(m_activeViewContainer);
-    DolphinView* view = m_activeViewContainer->view();
-    m_activeViewContainer->show();
-    m_actionHandler->setCurrentView(view);
+    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, SIGNAL(urlChanged(KUrl)),
-            m_remoteEncoding, SLOT(slotAboutToOpenUrl()));
-
-    m_tabBar = new KTabBar(this);
-    m_tabBar->setMovable(true);
-    m_tabBar->setTabsClosable(true);
-    connect(m_tabBar, SIGNAL(currentChanged(int)),
-            this, SLOT(setActiveTab(int)));
-    connect(m_tabBar, SIGNAL(tabCloseRequested(int)),
-            this, SLOT(closeTab(int)));
-    connect(m_tabBar, SIGNAL(contextMenu(int,QPoint)),
-            this, SLOT(openTabContextMenu(int,QPoint)));
-    connect(m_tabBar, SIGNAL(newTabRequest()),
-            this, SLOT(openNewTab()));
-    connect(m_tabBar, SIGNAL(testCanDecode(const QDragMoveEvent*,bool&)),
-            this, SLOT(slotTestCanDecode(const QDragMoveEvent*,bool&)));
-    connect(m_tabBar, SIGNAL(mouseMiddleClick(int)),
-            this, SLOT(closeTab(int)));
-    connect(m_tabBar, SIGNAL(tabMoved(int,int)),
-            this, SLOT(slotTabMoved(int,int)));
-    connect(m_tabBar, SIGNAL(receivedDropEvent(int,QDropEvent*)),
-            this, SLOT(tabDropEvent(int,QDropEvent*)));
-
-    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(viewTab.splitter, 1);
-
-    setCentralWidget(centralWidget);
+    connect(this, &DolphinMainWindow::urlChanged,
+            m_remoteEncoding, &DolphinRemoteEncoding::slotAboutToOpenUrl);
+
     setupDockWidgets();
-    emit urlChanged(homeUrl);
 
     setupGUI(Keys | Save | Create | ToolBar);
     stateChanged("new_file");
 
     QClipboard* clipboard = QApplication::clipboard();
-    connect(clipboard, SIGNAL(dataChanged()),
-            this, SLOT(updatePasteAction()));
-
-    if (generalSettings->splitView()) {
-        toggleSplitView();
-    }
-    updateEditActions();
-    updateViewActions();
-    updateGoActions();
+    connect(clipboard, &QClipboard::dataChanged,
+            this, &DolphinMainWindow::updatePasteAction);
 
     QAction* showFilterBarAction = actionCollection()->action("show_filter_bar");
     showFilterBarAction->setChecked(generalSettings->filterBar());
@@ -246,72 +171,14 @@ DolphinMainWindow::~DolphinMainWindow()
 {
 }
 
-void DolphinMainWindow::openDirectories(const QList<KUrl>& dirs)
+void DolphinMainWindow::openDirectories(const QList<QUrl>& dirs)
 {
-    if (dirs.isEmpty()) {
-        return;
-    }
-
-    if (dirs.count() == 1) {
-        m_activeViewContainer->setUrl(dirs.first());
-        return;
-    }
-
-    const int oldOpenTabsCount = m_viewTab.count();
-
-    const bool hasSplitView = GeneralSettings::splitView();
-
-    // Open each directory inside a new tab. If the "split view" option has been enabled,
-    // always show two directories within one tab.
-    QList<KUrl>::const_iterator it = dirs.constBegin();
-    while (it != dirs.constEnd()) {
-        openNewTab(*it);
-        ++it;
-
-        if (hasSplitView && (it != dirs.constEnd())) {
-            const int tabIndex = m_viewTab.count() - 1;
-            m_viewTab[tabIndex].secondaryView->setUrl(*it);
-            ++it;
-        }
-    }
-
-    // Remove the previously opened tabs
-    for (int i = 0; i < oldOpenTabsCount; ++i) {
-        closeTab(0);
-    }
+    m_tabWidget->openDirectories(dirs);
 }
 
-void DolphinMainWindow::openFiles(const QList<KUrl>& files)
+void DolphinMainWindow::openFiles(const QList<QUrl>& files)
 {
-    if (files.isEmpty()) {
-        return;
-    }
-
-    // Get all distinct directories from 'files' and open a tab
-    // for each directory. If the "split view" option is enabled, two
-    // directories are shown inside one tab (see openDirectories()).
-    QList<KUrl> dirs;
-    foreach (const KUrl& url, files) {
-        const KUrl dir(url.directory());
-        if (!dirs.contains(dir)) {
-            dirs.append(dir);
-        }
-    }
-
-    openDirectories(dirs);
-
-    // Select the files. Although the files can be split between several
-    // tabs, there is no need to split 'files' accordingly, as
-    // the DolphinView will just ignore invalid selections.
-    const int tabCount = m_viewTab.count();
-    for (int i = 0; i < tabCount; ++i) {
-        m_viewTab[i].primaryView->view()->markUrlsAsSelected(files);
-        m_viewTab[i].primaryView->view()->markUrlAsCurrent(files.at(0));
-        if (m_viewTab[i].secondaryView) {
-            m_viewTab[i].secondaryView->view()->markUrlsAsSelected(files);
-            m_viewTab[i].secondaryView->view()->markUrlAsCurrent(files.at(0));
-        }
-    }
+    m_tabWidget->openFiles(files);
 }
 
 void DolphinMainWindow::showCommand(CommandType command)
@@ -348,7 +215,7 @@ void DolphinMainWindow::pasteIntoFolder()
     m_activeViewContainer->view()->pasteIntoFolder();
 }
 
-void DolphinMainWindow::changeUrl(const KUrl& url)
+void DolphinMainWindow::changeUrl(const QUrl &url)
 {
     if (!KProtocolManager::supportsListing(url)) {
         // The URL navigator only checks for validity, not
@@ -357,23 +224,16 @@ void DolphinMainWindow::changeUrl(const KUrl& url)
         return;
     }
 
-    DolphinViewContainer* view = activeViewContainer();
-    if (view) {
-        view->setUrl(url);
-        updateEditActions();
-        updateViewActions();
-        updateGoActions();
-        setUrlAsCaption(url);
-        if (m_viewTab.count() > 1) {
-            m_tabBar->setTabText(m_tabIndex, squeezedText(tabName(m_activeViewContainer->url())));
-        }
-        const QString iconName = KMimeType::iconNameForUrl(url);
-        m_tabBar->setTabIcon(m_tabIndex, KIcon(iconName));
-        emit urlChanged(url);
-    }
+    m_activeViewContainer->setUrl(url);
+    updateEditActions();
+    updatePasteAction();
+    updateViewActions();
+    updateGoActions();
+
+    emit urlChanged(url);
 }
 
-void DolphinMainWindow::slotTerminalDirectoryChanged(const KUrl& url)
+void DolphinMainWindow::slotTerminalDirectoryChanged(const QUrl& url)
 {
     m_activeViewContainer->setAutoGrabFocus(false);
     changeUrl(url);
@@ -391,11 +251,7 @@ void DolphinMainWindow::slotSelectionChanged(const KFileItemList& selection)
 {
     updateEditActions();
 
-    Q_ASSERT(m_viewTab[m_tabIndex].primaryView);
-    int selectedUrlsCount = m_viewTab[m_tabIndex].primaryView->view()->selectedItemsCount();
-    if (m_viewTab[m_tabIndex].secondaryView) {
-        selectedUrlsCount += m_viewTab[m_tabIndex].secondaryView->view()->selectedItemsCount();
-    }
+    const int selectedUrlsCount = m_tabWidget->currentTabPage()->selectedItemsCount();
 
     QAction* compareFilesAction = actionCollection()->action("compare_files");
     if (selectedUrlsCount == 2) {
@@ -438,93 +294,22 @@ void DolphinMainWindow::updateFilterBarAction(bool show)
 
 void DolphinMainWindow::openNewMainWindow()
 {
-    KRun::run("dolphin %u", KUrl::List(), this);
-}
-
-void DolphinMainWindow::openNewTab()
-{
-    const bool isUrlEditable =  m_activeViewContainer->urlNavigator()->isUrlEditable();
-
-    openNewTab(m_activeViewContainer->url());
-    m_tabBar->setCurrentIndex(m_viewTab.count() - 1);
-
-    // The URL navigator of the new tab should have the same editable state
-    // as the current tab
-    KUrlNavigator* navigator = m_activeViewContainer->urlNavigator();
-    navigator->setUrlEditable(isUrlEditable);
-
-    if (isUrlEditable) {
-        // If a new tab is opened and the URL is editable, assure that
-        // the user can edit the URL without manually setting the focus
-        navigator->setFocus();
-    }
-}
-
-void DolphinMainWindow::openNewTab(const KUrl& url)
-{
-    QWidget* focusWidget = QApplication::focusWidget();
-
-    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.
-        const KUrl currentUrl = m_activeViewContainer->url();
-        m_tabBar->addTab(KIcon(KMimeType::iconNameForUrl(currentUrl)),
-                         squeezedText(tabName(currentUrl)));
-        m_tabBar->blockSignals(false);
-    }
-
-    m_tabBar->addTab(KIcon(KMimeType::iconNameForUrl(url)),
-                     squeezedText(tabName(url)));
-
-    ViewTab viewTab;
-    viewTab.splitter = new QSplitter(this);
-    viewTab.splitter->setChildrenCollapsible(false);
-    viewTab.primaryView = createViewContainer(url, viewTab.splitter);
-    viewTab.primaryView->setActive(false);
-    connectViewSignals(viewTab.primaryView);
-
-    m_viewTab.append(viewTab);
-
-    actionCollection()->action("close_tab")->setEnabled(true);
-
-    // Provide a split view, if the startup settings are set this way
-    if (GeneralSettings::splitView()) {
-        const int newTabIndex = m_viewTab.count() - 1;
-        createSecondaryView(newTabIndex);
-        m_viewTab[newTabIndex].secondaryView->setActive(true);
-        m_viewTab[newTabIndex].isPrimaryViewActive = false;
-    }
-
-    if (focusWidget) {
-        // The DolphinViewContainer grabbed the keyboard focus. As the tab is opened
-        // in background, assure that the previous focused widget gets the focus back.
-        focusWidget->setFocus();
-    }
+    KRun::run("dolphin %u", QList<QUrl>(), this);
 }
 
-void DolphinMainWindow::openNewActivatedTab(const KUrl& url)
+void DolphinMainWindow::openNewActivatedTab()
 {
-    openNewTab(url);
-    m_tabBar->setCurrentIndex(m_viewTab.count() - 1);
+    m_tabWidget->openNewActivatedTab();
 }
 
-void DolphinMainWindow::activateNextTab()
+void DolphinMainWindow::openNewTab(const QUrl& url)
 {
-    if (m_viewTab.count() >= 2) {
-        const int tabIndex = (m_tabBar->currentIndex() + 1) % m_tabBar->count();
-        m_tabBar->setCurrentIndex(tabIndex);
-    }
+    m_tabWidget->openNewTab(url);
 }
 
-void DolphinMainWindow::activatePrevTab()
+void DolphinMainWindow::openNewActivatedTab(const QUrl& url)
 {
-    if (m_viewTab.count() >= 2) {
-        int tabIndex = m_tabBar->currentIndex() - 1;
-        if (tabIndex == -1) {
-            tabIndex = m_tabBar->count() - 1;
-        }
-        m_tabBar->setCurrentIndex(tabIndex);
-    }
+    m_tabWidget->openNewActivatedTab(url);
 }
 
 void DolphinMainWindow::openInNewTab()
@@ -534,7 +319,7 @@ void DolphinMainWindow::openInNewTab()
         openNewTab(m_activeViewContainer->url());
     } else {
         foreach (const KFileItem& item, list) {
-            const KUrl& url = DolphinView::openItemAsFolderUrl(item);
+            const QUrl& url = DolphinView::openItemAsFolderUrl(item);
             if (!url.isEmpty()) {
                 openNewTab(url);
             }
@@ -544,7 +329,7 @@ void DolphinMainWindow::openInNewTab()
 
 void DolphinMainWindow::openInNewWindow()
 {
-    KUrl newWindowUrl;
+    QUrl newWindowUrl;
 
     const KFileItemList list = m_activeViewContainer->view()->selectedItems();
     if (list.isEmpty()) {
@@ -559,24 +344,10 @@ void DolphinMainWindow::openInNewWindow()
     }
 }
 
-void DolphinMainWindow::toggleActiveView()
-{
-    if (!m_viewTab[m_tabIndex].secondaryView) {
-        // only one view is available
-        return;
-    }
-
-    Q_ASSERT(m_activeViewContainer);
-    Q_ASSERT(m_viewTab[m_tabIndex].primaryView);
-
-    DolphinViewContainer* left  = m_viewTab[m_tabIndex].primaryView;
-    DolphinViewContainer* right = m_viewTab[m_tabIndex].secondaryView;
-    setActiveViewContainer(m_activeViewContainer == right ? left : right);
-}
-
 void DolphinMainWindow::showEvent(QShowEvent* event)
 {
     KXmlGuiWindow::showEvent(event);
+
     if (!event->spontaneous()) {
         m_activeViewContainer->view()->setFocus();
     }
@@ -592,7 +363,7 @@ void DolphinMainWindow::closeEvent(QCloseEvent* event)
         closedByUser = false;
     }
 
-    if (m_viewTab.count() > 1 && GeneralSettings::confirmClosingMultipleTabs() && closedByUser) {
+    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:
         // KDialog::Yes    -> Quit
@@ -603,7 +374,7 @@ void DolphinMainWindow::closeEvent(QCloseEvent* event)
         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"), KIcon("tab-close")));
+        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);
 
@@ -623,12 +394,12 @@ void DolphinMainWindow::closeEvent(QCloseEvent* event)
         }
 
         switch (result) {
-            case KDialog::Yes:
+            case QDialogButtonBox::Yes:
                 // Quit
                 break;
-            case KDialog::No:
+            case QDialogButtonBox::No:
                 // Close only the current tab
-                closeTab();
+                m_tabWidget->closeTab();
             default:
                 event->ignore();
                 return;
@@ -636,77 +407,19 @@ void DolphinMainWindow::closeEvent(QCloseEvent* event)
     }
 
     GeneralSettings::setVersion(CurrentDolphinVersion);
-    GeneralSettings::self()->writeConfig();
+    GeneralSettings::self()->save();
 
     KXmlGuiWindow::closeEvent(event);
 }
 
 void DolphinMainWindow::saveProperties(KConfigGroup& group)
 {
-    const int tabCount = m_viewTab.count();
-    group.writeEntry("Tab Count", tabCount);
-    group.writeEntry("Active Tab Index", m_tabBar->currentIndex());
-
-    for (int i = 0; i < tabCount; ++i) {
-        const DolphinViewContainer* cont = m_viewTab[i].primaryView;
-        group.writeEntry(tabProperty("Primary URL", i), cont->url().url());
-        group.writeEntry(tabProperty("Primary Editable", i),
-                         cont->urlNavigator()->isUrlEditable());
-
-        cont = m_viewTab[i].secondaryView;
-        if (cont) {
-            group.writeEntry(tabProperty("Secondary URL", i), cont->url().url());
-            group.writeEntry(tabProperty("Secondary Editable", i),
-                             cont->urlNavigator()->isUrlEditable());
-        }
-    }
+    m_tabWidget->saveProperties(group);
 }
 
 void DolphinMainWindow::readProperties(const KConfigGroup& group)
 {
-    const int tabCount = group.readEntry("Tab Count", 1);
-    for (int i = 0; i < tabCount; ++i) {
-        DolphinViewContainer* cont = m_viewTab[i].primaryView;
-
-        cont->setUrl(group.readEntry(tabProperty("Primary URL", i)));
-        const bool editable = group.readEntry(tabProperty("Primary Editable", i), false);
-        cont->urlNavigator()->setUrlEditable(editable);
-
-        cont = m_viewTab[i].secondaryView;
-        const QString secondaryUrl = group.readEntry(tabProperty("Secondary URL", i));
-        if (!secondaryUrl.isEmpty()) {
-            if (!cont) {
-                // a secondary view should be shown, but no one is available
-                // currently -> create a new view
-                toggleSplitView();
-                cont = m_viewTab[i].secondaryView;
-                Q_ASSERT(cont);
-            }
-
-            // The right view must be activated before the URL is set. Changing
-            // the URL in the right view will emit the right URL navigator's
-            // urlChanged(KUrl) signal, which is connected to the changeUrl(KUrl)
-            // slot. That slot will change the URL in the left view if it is still
-            // active. See https://bugs.kde.org/show_bug.cgi?id=330047.
-            setActiveViewContainer(cont);
-
-            cont->setUrl(secondaryUrl);
-            const bool editable = group.readEntry(tabProperty("Secondary Editable", i), false);
-            cont->urlNavigator()->setUrlEditable(editable);
-        } else if (cont) {
-            // no secondary view should be shown, but the default setting shows
-            // one already -> close the view
-            toggleSplitView();
-        }
-
-        // openNewTab() needs to be called only tabCount - 1 times
-        if (i != tabCount - 1) {
-            openNewTab();
-        }
-    }
-
-    const int index = group.readEntry("Active Tab Index", 0);
-    m_tabBar->setCurrentIndex(index);
+    m_tabWidget->readProperties(group);
 }
 
 void DolphinMainWindow::updateNewMenu()
@@ -741,35 +454,6 @@ void DolphinMainWindow::slotUndoAvailable(bool available)
     }
 }
 
-void DolphinMainWindow::restoreClosedTab(QAction* action)
-{
-    if (action->data().toBool()) {
-        // clear all actions except the "Empty Recently Closed Tabs"
-        // action and the separator
-        QList<QAction*> actions = m_recentTabsMenu->menu()->actions();
-        const int count = actions.size();
-        for (int i = 2; i < count; ++i) {
-            m_recentTabsMenu->menu()->removeAction(actions.at(i));
-        }
-    } else {
-        const ClosedTab closedTab = action->data().value<ClosedTab>();
-        openNewTab(closedTab.primaryUrl);
-        m_tabBar->setCurrentIndex(m_viewTab.count() - 1);
-
-        if (closedTab.isSplit) {
-            // create secondary view
-            toggleSplitView();
-            m_viewTab[m_tabIndex].secondaryView->setUrl(closedTab.secondaryUrl);
-        }
-
-        m_recentTabsMenu->removeAction(action);
-    }
-
-    if (m_recentTabsMenu->menu()->actions().count() == 2) {
-        m_recentTabsMenu->setEnabled(false);
-    }
-}
-
 void DolphinMainWindow::slotUndoTextChanged(const QString& text)
 {
     QAction* undoAction = actionCollection()->action(KStandardAction::name(KStandardAction::Undo));
@@ -813,6 +497,11 @@ void DolphinMainWindow::updatePasteAction()
     pasteAction->setText(pasteInfo.second);
 }
 
+void DolphinMainWindow::slotDirectoryLoadingCompleted()
+{
+    updatePasteAction();
+}
+
 void DolphinMainWindow::selectAll()
 {
     clearStatusBar();
@@ -839,29 +528,8 @@ void DolphinMainWindow::invertSelection()
 
 void DolphinMainWindow::toggleSplitView()
 {
-    if (!m_viewTab[m_tabIndex].secondaryView) {
-        createSecondaryView(m_tabIndex);
-        setActiveViewContainer(m_viewTab[m_tabIndex].secondaryView);
-    } else if (m_activeViewContainer == m_viewTab[m_tabIndex].secondaryView) {
-        // remove secondary view
-        m_viewTab[m_tabIndex].secondaryView->close();
-        m_viewTab[m_tabIndex].secondaryView->deleteLater();
-        m_viewTab[m_tabIndex].secondaryView = 0;
-
-        setActiveViewContainer(m_viewTab[m_tabIndex].primaryView);
-    } else {
-        // The primary view is active and should be closed. 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;
-
-        setActiveViewContainer(m_viewTab[m_tabIndex].primaryView);
-    }
+    DolphinTabPage* tabPage = m_tabWidget->currentTabPage();
+    tabPage->setSplitViewEnabled(!tabPage->splitViewEnabled());
 
     updateViewActions();
 }
@@ -925,19 +593,6 @@ void DolphinMainWindow::togglePanelLockState()
     GeneralSettings::setLockPanels(newLockState);
 }
 
-void DolphinMainWindow::slotPlacesPanelVisibilityChanged(bool visible)
-{
-    const int tabCount = m_viewTab.count();
-    for (int i = 0; i < tabCount; ++i) {
-        ViewTab& tab = m_viewTab[i];
-        Q_ASSERT(tab.primaryView);
-        tab.primaryView->urlNavigator()->setPlacesSelectorVisible(!visible);
-        if (tab.secondaryView) {
-            tab.secondaryView->urlNavigator()->setPlacesSelectorVisible(!visible);
-        }
-    }
-}
-
 void DolphinMainWindow::goBack()
 {
     KUrlNavigator* urlNavigator = m_activeViewContainer->urlNavigator();
@@ -968,7 +623,7 @@ void DolphinMainWindow::goHome()
 void DolphinMainWindow::goBack(Qt::MouseButtons buttons)
 {
     // The default case (left button pressed) is handled in goBack().
-    if (buttons == Qt::MidButton) {
+    if (buttons == Qt::MiddleButton) {
         KUrlNavigator* urlNavigator = activeViewContainer()->urlNavigator();
         const int index = urlNavigator->historyIndex() + 1;
         openNewTab(urlNavigator->locationUrl(index));
@@ -978,7 +633,7 @@ void DolphinMainWindow::goBack(Qt::MouseButtons buttons)
 void DolphinMainWindow::goForward(Qt::MouseButtons buttons)
 {
     // The default case (left button pressed) is handled in goForward().
-    if (buttons == Qt::MidButton) {
+    if (buttons == Qt::MiddleButton) {
         KUrlNavigator* urlNavigator = activeViewContainer()->urlNavigator();
         const int index = urlNavigator->historyIndex() - 1;
         openNewTab(urlNavigator->locationUrl(index));
@@ -988,43 +643,35 @@ void DolphinMainWindow::goForward(Qt::MouseButtons buttons)
 void DolphinMainWindow::goUp(Qt::MouseButtons buttons)
 {
     // The default case (left button pressed) is handled in goUp().
-    if (buttons == Qt::MidButton) {
-        openNewTab(activeViewContainer()->url().upUrl());
+    if (buttons == Qt::MiddleButton) {
+        openNewTab(KIO::upUrl(activeViewContainer()->url()));
     }
 }
 
 void DolphinMainWindow::goHome(Qt::MouseButtons buttons)
 {
     // The default case (left button pressed) is handled in goHome().
-    if (buttons == Qt::MidButton) {
+    if (buttons == Qt::MiddleButton) {
         openNewTab(GeneralSettings::self()->homeUrl());
     }
 }
 
 void DolphinMainWindow::compareFiles()
 {
-    const DolphinViewContainer* primaryViewContainer = m_viewTab[m_tabIndex].primaryView;
-    Q_ASSERT(primaryViewContainer);
-    KFileItemList items = primaryViewContainer->view()->selectedItems();
-
-    const DolphinViewContainer* secondaryViewContainer = m_viewTab[m_tabIndex].secondaryView;
-    if (secondaryViewContainer) {
-        items.append(secondaryViewContainer->view()->selectedItems());
-    }
-
+    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;
     }
 
-    KUrl urlA = items.at(0).url();
-    KUrl urlB = items.at(1).url();
+    QUrl urlA = items.at(0).url();
+    QUrl urlB = items.at(1).url();
 
     QString command("kompare -c \"");
-    command.append(urlA.pathOrUrl());
+    command.append(urlA.toDisplayString(QUrl::PreferLocalFile));
     command.append("\" \"");
-    command.append(urlB.pathOrUrl());
+    command.append(urlB.toDisplayString(QUrl::PreferLocalFile));
     command.append('\"');
     KRun::runCommand(command, "Kompare", "kompare", this);
 }
@@ -1046,7 +693,7 @@ void DolphinMainWindow::openTerminal()
 
     // 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.
-    KUrl url = KIO::NetAccess::mostLocalUrl(m_activeViewContainer->url(), this);
+    QUrl url = KIO::NetAccess::mostLocalUrl(m_activeViewContainer->url(), this);
 
     //If the URL is local after the above conversion, set the directory.
     if (url.isLocalFile()) {
@@ -1062,9 +709,9 @@ void DolphinMainWindow::editSettings()
         DolphinViewContainer* container = activeViewContainer();
         container->view()->writeSettings();
 
-        const KUrl url = container->url();
+        const QUrl url = container->url();
         DolphinSettingsDialog* settingsDialog = new DolphinSettingsDialog(url, this);
-        connect(settingsDialog, SIGNAL(settingsChanged()), this, SLOT(refreshViews()));
+        connect(settingsDialog, &DolphinSettingsDialog::settingsChanged, this, &DolphinMainWindow::refreshViews);
         settingsDialog->setAttribute(Qt::WA_DeleteOnClose);
         settingsDialog->show();
         m_settingsDialog = settingsDialog;
@@ -1073,161 +720,7 @@ void DolphinMainWindow::editSettings()
     }
 }
 
-void DolphinMainWindow::setActiveTab(int index)
-{
-    Q_ASSERT(index >= 0);
-    Q_ASSERT(index < m_viewTab.count());
-    if (index == m_tabIndex) {
-        return;
-    }
-
-    // hide current tab content
-    ViewTab& hiddenTab = m_viewTab[m_tabIndex];
-    hiddenTab.isPrimaryViewActive = hiddenTab.primaryView->isActive();
-    hiddenTab.primaryView->setActive(false);
-    if (hiddenTab.secondaryView) {
-        hiddenTab.secondaryView->setActive(false);
-    }
-    QSplitter* splitter = m_viewTab[m_tabIndex].splitter;
-    splitter->hide();
-    m_centralWidgetLayout->removeWidget(splitter);
-
-    // show active tab content
-    m_tabIndex = index;
-
-    ViewTab& viewTab = m_viewTab[index];
-    m_centralWidgetLayout->addWidget(viewTab.splitter, 1);
-    viewTab.primaryView->show();
-    if (viewTab.secondaryView) {
-        viewTab.secondaryView->show();
-    }
-    viewTab.splitter->show();
-
-    if (!viewTab.wasActive) {
-        viewTab.wasActive = true;
-
-        // If the tab has not been activated yet the size of the KItemListView is
-        // undefined and results in an unwanted animation. To prevent this a
-        // reloading of the directory gets triggered.
-        viewTab.primaryView->view()->reload();
-        if (viewTab.secondaryView) {
-            viewTab.secondaryView->view()->reload();
-        }
-    }
-
-    setActiveViewContainer(viewTab.isPrimaryViewActive ? viewTab.primaryView :
-                                                         viewTab.secondaryView);
-}
-
-void DolphinMainWindow::closeTab()
-{
-    closeTab(m_tabBar->currentIndex());
-}
-
-void DolphinMainWindow::closeTab(int index)
-{
-    Q_ASSERT(index >= 0);
-    Q_ASSERT(index < m_viewTab.count());
-    if (m_viewTab.count() == 1) {
-        // the last tab may never get closed
-        return;
-    }
-
-    if (index == m_tabIndex) {
-        // The tab that should be closed is the active tab. Activate the
-        // previous tab before closing the tab.
-        m_tabBar->setCurrentIndex((index > 0) ? index - 1 : 1);
-    }
-    rememberClosedTab(index);
-
-    // delete tab
-    m_viewTab[index].primaryView->deleteLater();
-    if (m_viewTab[index].secondaryView) {
-        m_viewTab[index].secondaryView->deleteLater();
-    }
-    m_viewTab[index].splitter->deleteLater();
-    m_viewTab.erase(m_viewTab.begin() + index);
-
-    m_tabBar->blockSignals(true);
-    m_tabBar->removeTab(index);
-
-    if (m_tabIndex > index) {
-        m_tabIndex--;
-        Q_ASSERT(m_tabIndex >= 0);
-    }
-
-    // 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);
-        actionCollection()->action("close_tab")->setEnabled(false);
-    } else {
-        m_tabBar->blockSignals(false);
-    }
-}
-
-void DolphinMainWindow::openTabContextMenu(int index, const QPoint& pos)
-{
-    KMenu menu(this);
-
-    QAction* newTabAction = menu.addAction(KIcon("tab-new"), i18nc("@action:inmenu", "New Tab"));
-    newTabAction->setShortcut(actionCollection()->action("new_tab")->shortcut());
-
-    QAction* detachTabAction = menu.addAction(KIcon("tab-detach"), i18nc("@action:inmenu", "Detach Tab"));
-
-    QAction* closeOtherTabsAction = menu.addAction(KIcon("tab-close-other"), i18nc("@action:inmenu", "Close Other Tabs"));
-
-    QAction* closeTabAction = menu.addAction(KIcon("tab-close"), i18nc("@action:inmenu", "Close Tab"));
-    closeTabAction->setShortcut(actionCollection()->action("close_tab")->shortcut());
-    QAction* selectedAction = menu.exec(pos);
-    if (selectedAction == newTabAction) {
-        const ViewTab& tab = m_viewTab[index];
-        Q_ASSERT(tab.primaryView);
-        const KUrl url = tab.secondaryView && tab.secondaryView->isActive() ?
-                         tab.secondaryView->url() : tab.primaryView->url();
-        openNewTab(url);
-        m_tabBar->setCurrentIndex(m_viewTab.count() - 1);
-    } else if (selectedAction == detachTabAction) {
-        const QString separator(QLatin1Char(' '));
-        QString command = QLatin1String("dolphin");
-
-        const ViewTab& tab = m_viewTab[index];
-        Q_ASSERT(tab.primaryView);
-
-        command += separator + tab.primaryView->url().url();
-        if (tab.secondaryView) {
-            command += separator + tab.secondaryView->url().url();
-            command += separator + QLatin1String("-split");
-        }
-
-        KRun::runCommand(command, this);
-
-        closeTab(index);
-    } else if (selectedAction == closeOtherTabsAction) {
-        const int count = m_tabBar->count();
-        for (int i = 0; i < index; ++i) {
-            closeTab(0);
-        }
-        for (int i = index + 1; i < count; ++i) {
-            closeTab(1);
-        }
-    } else if (selectedAction == closeTabAction) {
-        closeTab(index);
-    }
-}
-
-void DolphinMainWindow::slotTabMoved(int from, int to)
-{
-    m_viewTab.move(from, to);
-    m_tabIndex = m_tabBar->currentIndex();
-}
-
-void DolphinMainWindow::slotTestCanDecode(const QDragMoveEvent* event, bool& canDecode)
-{
-    canDecode = KUrl::List::canDecode(event->mimeData());
-}
-
-void DolphinMainWindow::handleUrl(const KUrl& url)
+void DolphinMainWindow::handleUrl(const QUrl& url)
 {
     delete m_lastHandleUrlStatJob;
     m_lastHandleUrlStatJob = 0;
@@ -1240,8 +733,8 @@ void DolphinMainWindow::handleUrl(const KUrl& url)
         if (m_lastHandleUrlStatJob->ui()) {
             KJobWidgets::setWindow(m_lastHandleUrlStatJob, this);
         }
-        connect(m_lastHandleUrlStatJob, SIGNAL(result(KJob*)),
-                this, SLOT(slotHandleUrlStatFinished(KJob*)));
+        connect(m_lastHandleUrlStatJob, &KIO::Job::result,
+                this, &DolphinMainWindow::slotHandleUrlStatFinished);
 
     } else {
         new KRun(url, this); // Automatically deletes itself after being finished
@@ -1252,7 +745,7 @@ void DolphinMainWindow::slotHandleUrlStatFinished(KJob* job)
 {
     m_lastHandleUrlStatJob = 0;
     const KIO::UDSEntry entry = static_cast<KIO::StatJob*>(job)->statResult();
-    const KUrl url = static_cast<KIO::StatJob*>(job)->url();
+    const QUrl url = static_cast<KIO::StatJob*>(job)->url();
     if (entry.isDir()) {
         activeViewContainer()->setUrl(url);
     } else {
@@ -1260,21 +753,6 @@ void DolphinMainWindow::slotHandleUrlStatFinished(KJob* job)
     }
 }
 
-void DolphinMainWindow::tabDropEvent(int tab, QDropEvent* event)
-{
-    const KUrl::List urls = KUrl::List::fromMimeData(event->mimeData());
-    if (!urls.isEmpty() && tab != -1) {
-        const ViewTab& viewTab = m_viewTab[tab];
-        const DolphinView* view = viewTab.isPrimaryViewActive ? viewTab.primaryView->view()
-                                                              : viewTab.secondaryView->view();
-        QString error;
-        DragAndDropHelper::dropUrls(view->rootItem(), view->url(), event, error);
-        if (!error.isEmpty()) {
-            activeViewContainer()->showMessage(error, DolphinViewContainer::Error);
-        }
-    }
-}
-
 void DolphinMainWindow::slotWriteStateChanged(bool isFolderWritable)
 {
     newFileMenu()->setEnabled(isFolderWritable);
@@ -1282,7 +760,7 @@ void DolphinMainWindow::slotWriteStateChanged(bool isFolderWritable)
 
 void DolphinMainWindow::openContextMenu(const QPoint& pos,
                                         const KFileItem& item,
-                                        const KUrl& url,
+                                        const QUrl& url,
                                         const QList<QAction*>& customActions)
 {
     QWeakPointer<DolphinContextMenu> contextMenu = new DolphinContextMenu(this, pos, item, url);
@@ -1290,6 +768,10 @@ void DolphinMainWindow::openContextMenu(const QPoint& pos,
     const DolphinContextMenu::Command command = contextMenu.data()->open();
 
     switch (command) {
+    case DolphinContextMenu::OpenParentFolder:
+        changeUrl(KIO::upUrl(item.url()));
+        break;
+
     case DolphinContextMenu::OpenParentFolderInNewWindow: {
 
         KRun::run("dolphin %u", QList<QUrl>() << KIO::upUrl(item.url()), this);
@@ -1310,10 +792,10 @@ void DolphinMainWindow::openContextMenu(const QPoint& pos,
 
 void DolphinMainWindow::updateControlMenu()
 {
-    KMenu* menu = qobject_cast<KMenu*>(sender());
+    QMenu* menu = qobject_cast<QMenu*>(sender());
     Q_ASSERT(menu);
 
-    // All actions get cleared by KMenu::clear(). The sub-menus are deleted
+    // All actions get cleared by QMenu::clear(). The sub-menus are deleted
     // by connecting to the aboutToHide() signal from the parent-menu.
     menu->clear();
 
@@ -1355,7 +837,7 @@ void DolphinMainWindow::updateControlMenu()
     }
 
     addActionToMenu(ac->action("panels"), menu);
-    KMenu* locationBarMenu = new KMenu(i18nc("@action:inmenu", "Location Bar"), 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);
@@ -1363,8 +845,8 @@ void DolphinMainWindow::updateControlMenu()
     menu->addSeparator();
 
     // Add "Go" menu
-    KMenu* goMenu = new KMenu(i18nc("@action:inmenu", "Go"), menu);
-    connect(menu, SIGNAL(aboutToHide()), goMenu, SLOT(deleteLater()));
+    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)));
@@ -1373,8 +855,8 @@ void DolphinMainWindow::updateControlMenu()
     menu->addMenu(goMenu);
 
     // Add "Tool" menu
-    KMenu* toolsMenu = new KMenu(i18nc("@action:inmenu", "Tools"), menu);
-    connect(menu, SIGNAL(aboutToHide()), toolsMenu, SLOT(deleteLater()));
+    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"));
@@ -1387,8 +869,8 @@ void DolphinMainWindow::updateControlMenu()
     addActionToMenu(ac->action(KStandardAction::name(KStandardAction::Preferences)), menu);
 
     // Add "Help" menu
-    KMenu* helpMenu = new KMenu(i18nc("@action:inmenu", "Help"), menu);
-    connect(menu, SIGNAL(aboutToHide()), helpMenu, SLOT(deleteLater()));
+    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();
@@ -1422,7 +904,7 @@ void DolphinMainWindow::slotPanelErrorMessage(const QString& error)
     activeViewContainer()->showMessage(error, DolphinViewContainer::Error);
 }
 
-void DolphinMainWindow::slotPlaceActivated(const KUrl& url)
+void DolphinMainWindow::slotPlaceActivated(const QUrl& url)
 {
     DolphinViewContainer* view = activeViewContainer();
 
@@ -1435,52 +917,62 @@ void DolphinMainWindow::slotPlaceActivated(const KUrl& url)
     }
 }
 
-void DolphinMainWindow::setActiveViewContainer(DolphinViewContainer* viewContainer)
+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);
-    Q_ASSERT((viewContainer == m_viewTab[m_tabIndex].primaryView) ||
-             (viewContainer == m_viewTab[m_tabIndex].secondaryView));
-    if (m_activeViewContainer == viewContainer) {
-        return;
-    }
 
-    m_activeViewContainer->setActive(false);
     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();
+    updatePasteAction();
     updateViewActions();
     updateGoActions();
 
-    const KUrl url = m_activeViewContainer->url();
-    setUrlAsCaption(url);
-    if (m_viewTab.count() > 1) {
-        m_tabBar->setTabText(m_tabIndex, tabName(url));
-        m_tabBar->setTabIcon(m_tabIndex, KIcon(KMimeType::iconNameForUrl(url)));
-    }
-
+    const QUrl url = viewContainer->url();
     emit urlChanged(url);
 }
 
-DolphinViewContainer* DolphinMainWindow::createViewContainer(const KUrl& url, QWidget* parent)
+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)
 {
-    DolphinViewContainer* container = new DolphinViewContainer(url, parent);
+    QString caption;
+    if (!url.isLocalFile()) {
+        caption.append(url.scheme() + " - ");
+        if (!url.host().isEmpty()) {
+            caption.append(url.host() + " - ");
+        }
+    }
 
-    // The places-selector from the URL navigator should only be shown
-    // if the places dock is invisible
-    QDockWidget* placesDock = findChild<QDockWidget*>("placesDock");
-    container->urlNavigator()->setPlacesSelectorVisible(!placesDock || !placesDock->isVisible());
+    const QString fileName = url.fileName().isEmpty() ? "/" : url.fileName();
+    caption.append(fileName);
 
-    return container;
+    setCaption(caption);
 }
 
 void DolphinMainWindow::setupActions()
@@ -1489,29 +981,29 @@ void DolphinMainWindow::setupActions()
     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->setIcon(KIcon("document-new"));
+    menu->setIcon(QIcon::fromTheme("document-new"));
     m_newFileMenu->setDelayed(false);
-    connect(menu, SIGNAL(aboutToShow()),
-            this, SLOT(updateNewMenu()));
+    connect(menu, &QMenu::aboutToShow,
+            this, &DolphinMainWindow::updateNewMenu);
 
     QAction* newWindow = actionCollection()->addAction("new_window");
-    newWindow->setIcon(KIcon("window-new"));
+    newWindow->setIcon(QIcon::fromTheme("window-new"));
     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);
 
     QAction* newTab = actionCollection()->addAction("new_tab");
-    newTab->setIcon(KIcon("tab-new"));
+    newTab->setIcon(QIcon::fromTheme("tab-new"));
     newTab->setText(i18nc("@action:inmenu File", "New Tab"));
-    newTab->setShortcuts(QList<QKeySequence>() << QKeySequence(Qt::CTRL | Qt::Key_T) << QKeySequence(Qt::CTRL | Qt::SHIFT | Qt::Key_N));
-    connect(newTab, SIGNAL(triggered()), this, SLOT(openNewTab()));
+    actionCollection()->setDefaultShortcuts(newTab, QList<QKeySequence>() << QKeySequence(Qt::CTRL | Qt::Key_T) << QKeySequence(Qt::CTRL | Qt::SHIFT | Qt::Key_N));
+    connect(newTab, &QAction::triggered, this, static_cast<void(DolphinMainWindow::*)()>(&DolphinMainWindow::openNewActivatedTab));
 
     QAction* closeTab = actionCollection()->addAction("close_tab");
-    closeTab->setIcon(KIcon("tab-close"));
+    closeTab->setIcon(QIcon::fromTheme("tab-close"));
     closeTab->setText(i18nc("@action:inmenu File", "Close Tab"));
-    closeTab->setShortcut(Qt::CTRL | Qt::Key_W);
+    actionCollection()->setDefaultShortcut(closeTab, Qt::CTRL | Qt::Key_W);
     closeTab->setEnabled(false);
-    connect(closeTab, SIGNAL(triggered()), this, SLOT(closeTab()));
+    connect(closeTab, &QAction::triggered, m_tabWidget, static_cast<void(DolphinTabWidget::*)()>(&DolphinTabWidget::closeTab));
 
     KStandardAction::quit(this, SLOT(quit()), actionCollection());
 
@@ -1525,7 +1017,7 @@ void DolphinMainWindow::setupActions()
     QAction* cut = KStandardAction::cut(this, SLOT(cut()), actionCollection());
     auto cutShortcuts = cut->shortcuts();
     cutShortcuts.removeAll(QKeySequence(Qt::SHIFT | Qt::Key_Delete));
-    cut->setShortcuts(cutShortcuts);
+    actionCollection()->setDefaultShortcuts(cut, cutShortcuts);
     KStandardAction::copy(this, SLOT(copy()), actionCollection());
     QAction* paste = KStandardAction::paste(this, SLOT(paste()), actionCollection());
     // The text of the paste-action is modified dynamically by Dolphin
@@ -1537,97 +1029,92 @@ void DolphinMainWindow::setupActions()
 
     QAction* selectAll = actionCollection()->addAction("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);
 
     QAction* invertSelection = actionCollection()->addAction("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)
 
     QAction* split = actionCollection()->addAction("split_view");
-    split->setShortcut(Qt::Key_F3);
-    updateSplitAction();
-    connect(split, SIGNAL(triggered()), this, SLOT(toggleSplitView()));
+    actionCollection()->setDefaultShortcut(split, Qt::Key_F3);
+    connect(split, &QAction::triggered, this, &DolphinMainWindow::toggleSplitView);
 
     QAction* reload = actionCollection()->addAction("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);
 
     QAction* stop = actionCollection()->addAction("stop");
     stop->setText(i18nc("@action:inmenu View", "Stop"));
     stop->setToolTip(i18nc("@info", "Stop loading"));
-    stop->setIcon(KIcon("process-stop"));
-    connect(stop, SIGNAL(triggered()), this, SLOT(stopLoading()));
+    stop->setIcon(QIcon::fromTheme("process-stop"));
+    connect(stop, &QAction::triggered, this, &DolphinMainWindow::stopLoading);
 
     KToggleAction* editableLocation = actionCollection()->add<KToggleAction>("editable_location");
     editableLocation->setText(i18nc("@action:inmenu Navigation Bar", "Editable Location"));
-    editableLocation->setShortcut(Qt::Key_F6);
-    connect(editableLocation, SIGNAL(triggered()), this, SLOT(toggleEditLocation()));
+    actionCollection()->setDefaultShortcut(editableLocation, Qt::Key_F6);
+    connect(editableLocation, &KToggleAction::triggered, this, &DolphinMainWindow::toggleEditLocation);
 
     QAction* replaceLocation = actionCollection()->addAction("replace_location");
     replaceLocation->setText(i18nc("@action:inmenu Navigation Bar", "Replace Location"));
-    replaceLocation->setShortcut(Qt::CTRL | Qt::Key_L);
-    connect(replaceLocation, SIGNAL(triggered()), this, SLOT(replaceLocation()));
+    actionCollection()->setDefaultShortcut(replaceLocation, Qt::CTRL | Qt::Key_L);
+    connect(replaceLocation, &QAction::triggered, this, &DolphinMainWindow::replaceLocation);
 
     // setup 'Go' menu
     QAction* backAction = KStandardAction::back(this, SLOT(goBack()), actionCollection());
-    connect(backAction, SIGNAL(triggered(Qt::MouseButtons,Qt::KeyboardModifiers)), this, SLOT(goBack(Qt::MouseButtons)));
     auto backShortcuts = backAction->shortcuts();
     backShortcuts.append(QKeySequence(Qt::Key_Backspace));
-    backAction->setShortcuts(backShortcuts);
-
-    m_recentTabsMenu = new KActionMenu(i18n("Recently Closed Tabs"), this);
-    m_recentTabsMenu->setIcon(KIcon("edit-undo"));
-    m_recentTabsMenu->setDelayed(false);
-    actionCollection()->addAction("closed_tabs", m_recentTabsMenu);
-    connect(m_recentTabsMenu->menu(), SIGNAL(triggered(QAction*)),
-            this, SLOT(restoreClosedTab(QAction*)));
-
-    QAction* action = new QAction(i18n("Empty Recently Closed Tabs"), m_recentTabsMenu);
-    action->setIcon(KIcon("edit-clear-list"));
-    action->setData(QVariant::fromValue(true));
-    m_recentTabsMenu->addAction(action);
-    m_recentTabsMenu->addSeparator();
-    m_recentTabsMenu->setEnabled(false);
-
-    QAction* forwardAction = KStandardAction::forward(this, SLOT(goForward()), actionCollection());
-    connect(forwardAction, SIGNAL(triggered(Qt::MouseButtons,Qt::KeyboardModifiers)), this, SLOT(goForward(Qt::MouseButtons)));
-
-    QAction* upAction = KStandardAction::up(this, SLOT(goUp()), actionCollection());
-    connect(upAction, SIGNAL(triggered(Qt::MouseButtons,Qt::KeyboardModifiers)), this, SLOT(goUp(Qt::MouseButtons)));
-
-    QAction* homeAction = KStandardAction::home(this, SLOT(goHome()), actionCollection());
-    connect(homeAction, SIGNAL(triggered(Qt::MouseButtons,Qt::KeyboardModifiers)), this, SLOT(goHome(Qt::MouseButtons)));
+    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()));
+
+    KStandardAction::forward(this, SLOT(goForward()), actionCollection());
+    KStandardAction::up(this, SLOT(goUp()), actionCollection());
+    KStandardAction::home(this, SLOT(goHome()), actionCollection());
 
     // setup 'Tools' menu
     QAction* showFilterBar = actionCollection()->addAction("show_filter_bar");
     showFilterBar->setText(i18nc("@action:inmenu Tools", "Show Filter Bar"));
-    showFilterBar->setIcon(KIcon("view-filter"));
-    showFilterBar->setShortcut(Qt::CTRL | Qt::Key_I);
-    connect(showFilterBar, SIGNAL(triggered()), this, SLOT(showFilterBar()));
+    showFilterBar->setIcon(QIcon::fromTheme("view-filter"));
+    actionCollection()->setDefaultShortcut(showFilterBar, Qt::CTRL | Qt::Key_I);
+    connect(showFilterBar, &QAction::triggered, this, &DolphinMainWindow::showFilterBar);
 
     QAction* compareFiles = actionCollection()->addAction("compare_files");
     compareFiles->setText(i18nc("@action:inmenu Tools", "Compare Files"));
-    compareFiles->setIcon(KIcon("kompare"));
+    compareFiles->setIcon(QIcon::fromTheme("kompare"));
     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(KIcon("utilities-terminal"));
-    openTerminal->setShortcut(Qt::SHIFT | Qt::Key_F4);
-    connect(openTerminal, SIGNAL(triggered()), this, SLOT(openTerminal()));
+    openTerminal->setIcon(QIcon::fromTheme("utilities-terminal"));
+    actionCollection()->setDefaultShortcut(openTerminal, Qt::SHIFT | Qt::Key_F4);
+    connect(openTerminal, &QAction::triggered, this, &DolphinMainWindow::openTerminal);
 
     // setup 'Settings' menu
     KToggleAction* showMenuBar = KStandardAction::showMenubar(0, 0, actionCollection());
-    connect(showMenuBar, SIGNAL(triggered(bool)),                   // Fixes #286822
-            this, SLOT(toggleShowMenuBar()), Qt::QueuedConnection);
+    connect(showMenuBar, &KToggleAction::triggered,                   // Fixes #286822
+            this, &DolphinMainWindow::toggleShowMenuBar, Qt::QueuedConnection);
     KStandardAction::preferences(this, SLOT(editSettings()), actionCollection());
 
     // not in menu actions
@@ -1640,30 +1127,34 @@ void DolphinMainWindow::setupActions()
     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"));
-    connect(activateNextTab, SIGNAL(triggered()), SLOT(activateNextTab()));
-    activateNextTab->setShortcuts(QApplication::isRightToLeft() ? prevTabKeys : nextTabKeys);
+    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"));
-    connect(activatePrevTab, SIGNAL(triggered()), SLOT(activatePrevTab()));
-    activatePrevTab->setShortcuts(QApplication::isRightToLeft() ? nextTabKeys : prevTabKeys);
+    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(KIcon("tab-new"));
-    connect(openInNewTab, SIGNAL(triggered()), this, SLOT(openInNewTab()));
+    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(KIcon("tab-new"));
-    connect(openInNewTabs, SIGNAL(triggered()), this, SLOT(openInNewTab()));
+    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(KIcon("window-new"));
-    connect(openInNewWindow, SIGNAL(triggered()), this, SLOT(openInNewWindow()));
+    openInNewWindow->setIcon(QIcon::fromTheme("window-new"));
+    connect(openInNewWindow, &QAction::triggered, this, &DolphinMainWindow::openInNewWindow);
 }
 
 void DolphinMainWindow::setupDockWidgets()
@@ -1672,32 +1163,32 @@ void DolphinMainWindow::setupDockWidgets()
 
     KDualAction* lockLayoutAction = actionCollection()->add<KDualAction>("lock_panels");
     lockLayoutAction->setActiveText(i18nc("@action:inmenu Panels", "Unlock Panels"));
-    lockLayoutAction->setActiveIcon(KIcon("object-unlocked"));
+    lockLayoutAction->setActiveIcon(QIcon::fromTheme("object-unlocked"));
     lockLayoutAction->setInactiveText(i18nc("@action:inmenu Panels", "Lock Panels"));
-    lockLayoutAction->setInactiveIcon(KIcon("object-locked"));
+    lockLayoutAction->setInactiveIcon(QIcon::fromTheme("object-locked"));
     lockLayoutAction->setActive(lock);
-    connect(lockLayoutAction, SIGNAL(triggered()), this, SLOT(togglePanelLockState()));
+    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);
-    Panel* infoPanel = new InformationPanel(infoDock);
+    InformationPanel* infoPanel = new InformationPanel(infoDock);
     infoPanel->setCustomContextMenuActions(QList<QAction*>() << lockLayoutAction);
-    connect(infoPanel, SIGNAL(urlActivated(KUrl)), this, SLOT(handleUrl(KUrl)));
+    connect(infoPanel, &InformationPanel::urlActivated, this, &DolphinMainWindow::handleUrl);
     infoDock->setWidget(infoPanel);
 
     QAction* infoAction = infoDock->toggleViewAction();
-    createPanelAction(KIcon("dialog-information"), Qt::Key_F11, infoAction, "show_information_panel");
+    createPanelAction(QIcon::fromTheme("dialog-information"), Qt::Key_F11, infoAction, "show_information_panel");
 
     addDockWidget(Qt::RightDockWidgetArea, infoDock);
-    connect(this, SIGNAL(urlChanged(KUrl)),
-            infoPanel, SLOT(setUrl(KUrl)));
-    connect(this, SIGNAL(selectionChanged(KFileItemList)),
-            infoPanel, SLOT(setSelection(KFileItemList)));
-    connect(this, SIGNAL(requestItemInfo(KFileItem)),
-            infoPanel, SLOT(requestDelayedItemInfo(KFileItem)));
+    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"));
@@ -1709,17 +1200,17 @@ void DolphinMainWindow::setupDockWidgets()
     foldersDock->setWidget(foldersPanel);
 
     QAction* foldersAction = foldersDock->toggleViewAction();
-    createPanelAction(KIcon("folder"), Qt::Key_F7, foldersAction, "show_folders_panel");
+    createPanelAction(QIcon::fromTheme("folder"), Qt::Key_F7, foldersAction, "show_folders_panel");
 
     addDockWidget(Qt::LeftDockWidgetArea, foldersDock);
-    connect(this, SIGNAL(urlChanged(KUrl)),
-            foldersPanel, SLOT(setUrl(KUrl)));
-    connect(foldersPanel, SIGNAL(folderActivated(KUrl)),
-            this, SLOT(changeUrl(KUrl)));
-    connect(foldersPanel, SIGNAL(folderMiddleClicked(KUrl)),
-            this, SLOT(openNewTab(KUrl)));
-    connect(foldersPanel, SIGNAL(errorMessage(QString)),
-            this, SLOT(slotPanelErrorMessage(QString)));
+    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::slotPanelErrorMessage);
 
     // Setup "Terminal"
 #ifndef Q_OS_WIN
@@ -1727,21 +1218,21 @@ void DolphinMainWindow::setupDockWidgets()
     terminalDock->setLocked(lock);
     terminalDock->setObjectName("terminalDock");
     terminalDock->setAllowedAreas(Qt::TopDockWidgetArea | Qt::BottomDockWidgetArea);
-    Panel* terminalPanel = new TerminalPanel(terminalDock);
+    TerminalPanel* terminalPanel = new TerminalPanel(terminalDock);
     terminalPanel->setCustomContextMenuActions(QList<QAction*>() << lockLayoutAction);
     terminalDock->setWidget(terminalPanel);
 
-    connect(terminalPanel, SIGNAL(hideTerminalPanel()), terminalDock, SLOT(hide()));
-    connect(terminalPanel, SIGNAL(changeUrl(KUrl)), this, SLOT(slotTerminalDirectoryChanged(KUrl)));
-    connect(terminalDock, SIGNAL(visibilityChanged(bool)),
-            terminalPanel, SLOT(dockVisibilityChanged()));
+    connect(terminalPanel, &TerminalPanel::hideTerminalPanel, terminalDock, &DolphinDockWidget::hide);
+    connect(terminalPanel, &TerminalPanel::changeUrl, this, &DolphinMainWindow::slotTerminalDirectoryChanged);
+    connect(terminalDock, &DolphinDockWidget::visibilityChanged,
+            terminalPanel, &TerminalPanel::dockVisibilityChanged);
 
     QAction* terminalAction = terminalDock->toggleViewAction();
-    createPanelAction(KIcon("utilities-terminal"), Qt::Key_F4, terminalAction, "show_terminal_panel");
+    createPanelAction(QIcon::fromTheme("utilities-terminal"), Qt::Key_F4, terminalAction, "show_terminal_panel");
 
     addDockWidget(Qt::BottomDockWidgetArea, terminalDock);
-    connect(this, SIGNAL(urlChanged(KUrl)),
-            terminalPanel, SLOT(setUrl(KUrl)));
+    connect(this, &DolphinMainWindow::urlChanged,
+            terminalPanel, &TerminalPanel::setUrl);
 #endif
 
     if (GeneralSettings::version() < 200) {
@@ -1763,21 +1254,23 @@ void DolphinMainWindow::setupDockWidgets()
     placesDock->setWidget(placesPanel);
 
     QAction* placesAction = placesDock->toggleViewAction();
-    createPanelAction(KIcon("bookmarks"), Qt::Key_F9, placesAction, "show_places_panel");
+    createPanelAction(QIcon::fromTheme("bookmarks"), Qt::Key_F9, placesAction, "show_places_panel");
 
     addDockWidget(Qt::LeftDockWidgetArea, placesDock);
-    connect(placesPanel, SIGNAL(placeActivated(KUrl)),
-            this, SLOT(slotPlaceActivated(KUrl)));
-    connect(placesPanel, SIGNAL(placeMiddleClicked(KUrl)),
-            this, SLOT(openNewTab(KUrl)));
-    connect(placesPanel, SIGNAL(errorMessage(QString)),
-            this, SLOT(slotPanelErrorMessage(QString)));
-    connect(this, SIGNAL(urlChanged(KUrl)),
-            placesPanel, SLOT(setUrl(KUrl)));
-    connect(placesDock, SIGNAL(visibilityChanged(bool)),
-            this, SLOT(slotPlacesPanelVisibilityChanged(bool)));
-    connect(this, SIGNAL(settingsChanged()),
-	    placesPanel, SLOT(readSettings()));
+    connect(placesPanel, &PlacesPanel::placeActivated,
+            this, &DolphinMainWindow::slotPlaceActivated);
+    connect(placesPanel, SIGNAL(placeMiddleClicked(QUrl)),
+            this, SLOT(openNewTab(QUrl)));
+    connect(placesPanel, &PlacesPanel::errorMessage,
+            this, &DolphinMainWindow::slotPanelErrorMessage);
+    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);
@@ -1818,7 +1311,6 @@ void DolphinMainWindow::updateEditActions()
         deleteWithTrashShortcut->setEnabled(capabilities.supportsDeleting() && !enableMoveToTrash);
         cutAction->setEnabled(capabilities.supportsMoving());
     }
-    updatePasteAction();
 }
 
 void DolphinMainWindow::updateViewActions()
@@ -1838,8 +1330,8 @@ void DolphinMainWindow::updateViewActions()
 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()
@@ -1850,29 +1342,29 @@ void DolphinMainWindow::createControlButton()
     Q_ASSERT(!m_controlButton);
 
     m_controlButton = new QToolButton(this);
-    m_controlButton->setIcon(KIcon("applications-system"));
+    m_controlButton->setIcon(QIcon::fromTheme("applications-system"));
     m_controlButton->setText(i18nc("@action", "Control"));
     m_controlButton->setPopupMode(QToolButton::InstantPopup);
     m_controlButton->setToolButtonStyle(toolBar()->toolButtonStyle());
 
-    KMenu* controlMenu = new KMenu(m_controlButton);
-    connect(controlMenu, SIGNAL(aboutToShow()), this, SLOT(updateControlMenu()));
+    QMenu* controlMenu = new QMenu(m_controlButton);
+    connect(controlMenu, &QMenu::aboutToShow, this, &DolphinMainWindow::updateControlMenu);
 
     m_controlButton->setMenu(controlMenu);
 
     toolBar()->addWidget(m_controlButton);
-    connect(toolBar(), SIGNAL(iconSizeChanged(QSize)),
-            m_controlButton, SLOT(setIconSize(QSize)));
-    connect(toolBar(), SIGNAL(toolButtonStyleChanged(Qt::ToolButtonStyle)),
-            m_controlButton, SLOT(setToolButtonStyle(Qt::ToolButtonStyle)));
+    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, SIGNAL(destroyed()), this, SLOT(slotControlButtonDeleted()));
+    connect(m_controlButton, &QToolButton::destroyed, this, &DolphinMainWindow::slotControlButtonDeleted);
     m_updateToolBarTimer = new QTimer(this);
     m_updateToolBarTimer->setInterval(500);
-    connect(m_updateToolBarTimer, SIGNAL(timeout()), this, SLOT(updateToolBar()));
+    connect(m_updateToolBarTimer, &QTimer::timeout, this, &DolphinMainWindow::updateToolBar);
 }
 
 void DolphinMainWindow::deleteControlButton()
@@ -1884,7 +1376,7 @@ void DolphinMainWindow::deleteControlButton()
     m_updateToolBarTimer = 0;
 }
 
-bool DolphinMainWindow::addActionToMenu(QAction* action, KMenu* menu)
+bool DolphinMainWindow::addActionToMenu(QAction* action, QMenu* menu)
 {
     Q_ASSERT(action);
     Q_ASSERT(menu);
@@ -1900,73 +1392,16 @@ bool DolphinMainWindow::addActionToMenu(QAction* action, KMenu* menu)
     return true;
 }
 
-void DolphinMainWindow::rememberClosedTab(int index)
-{
-    QMenu* tabsMenu = m_recentTabsMenu->menu();
-
-    const QString primaryPath = m_viewTab[index].primaryView->url().path();
-    const QString iconName = KMimeType::iconNameForUrl(primaryPath);
-
-    QAction* action = new QAction(squeezedText(primaryPath), tabsMenu);
-
-    ClosedTab closedTab;
-    closedTab.primaryUrl = m_viewTab[index].primaryView->url();
-
-    if (m_viewTab[index].secondaryView) {
-        closedTab.secondaryUrl = m_viewTab[index].secondaryView->url();
-        closedTab.isSplit = true;
-    } else {
-        closedTab.isSplit = false;
-    }
-
-    action->setData(QVariant::fromValue(closedTab));
-    action->setIcon(KIcon(iconName));
-
-    // add the closed tab menu entry after the separator and
-    // "Empty Recently Closed Tabs" entry
-    if (tabsMenu->actions().size() == 2) {
-        tabsMenu->addAction(action);
-    } else {
-        tabsMenu->insertAction(tabsMenu->actions().at(2), action);
-    }
-
-    // assure that only up to 8 closed tabs are shown in the menu
-    if (tabsMenu->actions().size() > 8) {
-        tabsMenu->removeAction(tabsMenu->actions().last());
-    }
-    actionCollection()->action("closed_tabs")->setEnabled(true);
-    KAcceleratorManager::manage(tabsMenu);
-}
-
 void DolphinMainWindow::refreshViews()
 {
-    Q_ASSERT(m_viewTab[m_tabIndex].primaryView);
-
-    // remember the current active view, as because of
-    // the refreshing the active view might change to
-    // the secondary view
-    DolphinViewContainer* activeViewContainer = m_activeViewContainer;
-
-    const int tabCount = m_viewTab.count();
-    for (int i = 0; i < tabCount; ++i) {
-        m_viewTab[i].primaryView->readSettings();
-        if (m_viewTab[i].secondaryView) {
-            m_viewTab[i].secondaryView->readSettings();
-        }
-    }
-
-    setActiveViewContainer(activeViewContainer);
+    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();
-        const ViewTab& activeTab = m_viewTab[m_tabIndex];
-        const bool toggle =    ( splitView && !activeTab.secondaryView)
-                            || (!splitView &&  activeTab.secondaryView);
-        if (toggle) {
-            toggleSplitView();
-        }
+        m_tabWidget->currentTabPage()->setSplitViewEnabled(splitView);
+        updateSplitAction();
     }
 
     emit settingsChanged();
@@ -1979,80 +1414,63 @@ void DolphinMainWindow::clearStatusBar()
 
 void DolphinMainWindow::connectViewSignals(DolphinViewContainer* container)
 {
-    connect(container, SIGNAL(showFilterBarChanged(bool)),
-            this, SLOT(updateFilterBarAction(bool)));
-    connect(container, SIGNAL(writeStateChanged(bool)),
-            this, SLOT(slotWriteStateChanged(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(tabRequested(KUrl)),
-            this, SLOT(openNewTab(KUrl)));
-    connect(view, SIGNAL(requestContextMenu(QPoint,KFileItem,KUrl,QList<QAction*>)),
-            this, SLOT(openContextMenu(QPoint,KFileItem,KUrl,QList<QAction*>)));
-    connect(view, SIGNAL(directoryLoadingStarted()),
-            this, SLOT(enableStopAction()));
-    connect(view, SIGNAL(directoryLoadingCompleted()),
-            this, SLOT(disableStopAction()));
-    connect(view, SIGNAL(goBackRequested()),
-            this, SLOT(goBack()));
-    connect(view, SIGNAL(goForwardRequested()),
-            this, SLOT(goForward()));
+    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::slotRequestItemInfo);
+    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();
-    connect(navigator, SIGNAL(urlChanged(KUrl)),
-            this, SLOT(changeUrl(KUrl)));
-    connect(navigator, SIGNAL(historyChanged()),
-            this, SLOT(updateHistory()));
-    connect(navigator, SIGNAL(editableStateChanged(bool)),
-            this, SLOT(slotEditableStateChanged(bool)));
-    connect(navigator, SIGNAL(tabRequested(KUrl)),
-            this, SLOT(openNewTab(KUrl)));
+    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");
-    if (m_viewTab[m_tabIndex].secondaryView) {
-        if (m_activeViewContainer == m_viewTab[m_tabIndex].secondaryView) {
-            splitAction->setText(i18nc("@action:intoolbar Close right view", "Close"));
-            splitAction->setToolTip(i18nc("@info", "Close right view"));
-            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->setToolTip(i18nc("@info", "Close left view"));
-            splitAction->setIcon(KIcon("view-left-close"));
+            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"));
         splitAction->setToolTip(i18nc("@info", "Split view"));
-        splitAction->setIcon(KIcon("view-right-new"));
+        splitAction->setIcon(QIcon::fromTheme("view-right-new"));
     }
 }
 
-QString DolphinMainWindow::tabName(const KUrl& url) const
-{
-    QString name;
-    if (url.equals(KUrl("file:///"))) {
-        name = '/';
-    } else {
-        name = url.fileName();
-        if (name.isEmpty()) {
-            name = url.protocol();
-        } else {
-            // Make sure that a '&' inside the directory name is displayed correctly
-            // and not misinterpreted as a keyboard shortcut in QTabBar::setTabText()
-            name.replace('&', "&&");
-        }
-    }
-    return name;
-}
-
 bool DolphinMainWindow::isKompareInstalled() const
 {
     static bool initialized = false;
@@ -2060,64 +1478,13 @@ bool DolphinMainWindow::isKompareInstalled() const
     if (!initialized) {
         // TODO: maybe replace this approach later by using a menu
         // plugin like kdiff3plugin.cpp
-        installed = !KGlobal::dirs()->findExe("kompare").isEmpty();
+        installed = !QStandardPaths::findExecutable(QStringLiteral("kompare")).isEmpty();
         initialized = true;
     }
     return installed;
 }
 
-void DolphinMainWindow::createSecondaryView(int tabIndex)
-{
-    ViewTab& viewTab = m_viewTab[tabIndex];
-
-    QSplitter* splitter = viewTab.splitter;
-    const int newWidth = (viewTab.primaryView->width() - splitter->handleWidth()) / 2;
-
-    const DolphinView* view = viewTab.primaryView->view();
-    // The final parent of the new view container will be set by adding it
-    // to the splitter. However, we must make sure that the DolphinMainWindow
-    // is a parent of the view container already when it is constructed
-    // because this enables the container's KFileItemModel to assign its
-    // dir lister to the right main window. The dir lister can then cache
-    // authentication data.
-    viewTab.secondaryView = createViewContainer(view->url(), this);
-    splitter->addWidget(viewTab.secondaryView);
-    splitter->setSizes(QList<int>() << newWidth << newWidth);
-
-    connectViewSignals(viewTab.secondaryView);
-    viewTab.secondaryView->setActive(false);
-    viewTab.secondaryView->resize(newWidth, viewTab.primaryView->height());
-    viewTab.secondaryView->show();
-}
-
-QString DolphinMainWindow::tabProperty(const QString& property, int tabIndex) const
-{
-    return "Tab " + QString::number(tabIndex) + ' ' + property;
-}
-
-void DolphinMainWindow::setUrlAsCaption(const KUrl& url)
-{
-    QString caption;
-    if (!url.isLocalFile()) {
-        caption.append(url.protocol() + " - ");
-        if (url.hasHost()) {
-            caption.append(url.host() + " - ");
-        }
-    }
-
-    const QString fileName = url.fileName().isEmpty() ? "/" : url.fileName();
-    caption.append(fileName);
-
-    setCaption(caption);
-}
-
-QString DolphinMainWindow::squeezedText(const QString& text) const
-{
-    const QFontMetrics fm = fontMetrics();
-    return fm.elidedText(text, Qt::ElideMiddle, fm.maxWidth() * 10);
-}
-
-void DolphinMainWindow::createPanelAction(const KIcon& icon,
+void DolphinMainWindow::createPanelAction(const QIcon& icon,
                                           const QKeySequence& shortcut,
                                           QAction* dockAction,
                                           const QString& actionName)
@@ -2127,10 +1494,10 @@ void DolphinMainWindow::createPanelAction(const KIcon& icon,
     panelAction->setChecked(dockAction->isChecked());
     panelAction->setText(dockAction->text());
     panelAction->setIcon(icon);
-    panelAction->setShortcut(shortcut);
+    actionCollection()->setDefaultShortcut(panelAction, shortcut);
 
-    connect(panelAction, SIGNAL(triggered()), dockAction, SLOT(trigger()));
-    connect(dockAction, SIGNAL(toggled(bool)), panelAction, SLOT(setChecked(bool)));
+    connect(panelAction, &QAction::triggered, dockAction, &QAction::trigger);
+    connect(dockAction, &QAction::toggled, panelAction, &QAction::setChecked);
 }
 
 DolphinMainWindow::UndoUiInterface::UndoUiInterface() :
@@ -2153,4 +1520,3 @@ void DolphinMainWindow::UndoUiInterface::jobError(KIO::Job* job)
     }
 }
 
-#include "dolphinmainwindow.moc"