Merge branch 'release/20.04'

[dolphin.git] / src / dolphinmainwindow.cpp

diff --git a/src/dolphinmainwindow.cpp b/src/dolphinmainwindow.cpp
index 076869c1ac0bea75365e03745582b9e53708f580..6a5fdb1c49cd47f7c357920b0feab4dd84c8baad 100644 (file)
--- a/src/dolphinmainwindow.cpp
+++ b/src/dolphinmainwindow.cpp
@@ -21,17 +21,19 @@
 
 #include "dolphinmainwindow.h"
 
 
 #include "dolphinmainwindow.h"
 

+#include "dolphinmainwindowadaptor.h"

 #include "config-terminal.h"
 #include "global.h"
 #include "config-terminal.h"
 #include "global.h"

+#include "dolphinbookmarkhandler.h"

 #include "dolphindockwidget.h"
 #include "dolphincontextmenu.h"
 #include "dolphinnewfilemenu.h"
 #include "dolphinrecenttabsmenu.h"
 #include "dolphindockwidget.h"
 #include "dolphincontextmenu.h"
 #include "dolphinnewfilemenu.h"
 #include "dolphinrecenttabsmenu.h"

-#include "dolphintabwidget.h"

 #include "dolphinviewcontainer.h"
 #include "dolphintabpage.h"
 #include "middleclickactioneventfilter.h"
 #include "panels/folders/folderspanel.h"
 #include "dolphinviewcontainer.h"
 #include "dolphintabpage.h"
 #include "middleclickactioneventfilter.h"
 #include "panels/folders/folderspanel.h"

+#include "panels/places/placesitemmodel.h"

 #include "panels/places/placespanel.h"
 #include "panels/information/informationpanel.h"
 #include "panels/terminal/terminalpanel.h"
 #include "panels/places/placespanel.h"
 #include "panels/information/informationpanel.h"
 #include "panels/terminal/terminalpanel.h"


@@ -48,28 +50,35 @@
 #include <KActionMenu>
 #include <KAuthorized>
 #include <KConfig>
 #include <KActionMenu>
 #include <KAuthorized>
 #include <KConfig>

+#include <KConfigGui>

 #include <KDualAction>
 #include <KFileItemListProperties>
 #include <KHelpMenu>
 #include <KDualAction>
 #include <KFileItemListProperties>
 #include <KHelpMenu>

+#include <KIO/CommandLauncherJob>

 #include <KIO/JobUiDelegate>
 #include <KIO/OpenFileManagerWindowJob>
 #include <KJobWidgets>
 #include <KLocalizedString>
 #include <KMessageBox>
 #include <KIO/JobUiDelegate>
 #include <KIO/OpenFileManagerWindowJob>
 #include <KJobWidgets>
 #include <KLocalizedString>
 #include <KMessageBox>

+#include <KNS3/KMoreToolsMenuFactory>

 #include <KProtocolInfo>
 #include <KProtocolManager>
 #include <KRun>
 #include <KShell>
 #include <KStandardAction>
 #include <KProtocolInfo>
 #include <KProtocolManager>
 #include <KRun>
 #include <KShell>
 #include <KStandardAction>

+#include <KStartupInfo>

 #include <KToggleAction>
 #include <KToolBar>
 #include <KToggleAction>
 #include <KToolBar>

+#include <KToolBarPopupAction>

 #include <KToolInvocation>
 #include <KUrlComboBox>
 #include <KUrlNavigator>
 #include <KToolInvocation>
 #include <KUrlComboBox>
 #include <KUrlNavigator>

+#include <KWindowSystem>

 
 #include <QApplication>
 #include <QClipboard>
 #include <QCloseEvent>
 
 #include <QApplication>
 #include <QClipboard>
 #include <QCloseEvent>

+#include <QDesktopServices>

 #include <QDialog>
 #include <QFileInfo>
 #include <QLineEdit>
 #include <QDialog>
 #include <QFileInfo>
 #include <QLineEdit>


@@ -80,29 +89,44 @@
 #include <QStandardPaths>
 #include <QTimer>
 #include <QToolButton>
 #include <QStandardPaths>
 #include <QTimer>
 #include <QToolButton>

+#include <QWhatsThisClickedEvent>

 
 namespace {
     // Used for GeneralSettings::version() to determine whether
     // an updated version of Dolphin is running.
     const int CurrentDolphinVersion = 200;
 
 namespace {
     // Used for GeneralSettings::version() to determine whether
     // an updated version of Dolphin is running.
     const int CurrentDolphinVersion = 200;

+    // The maximum number of entries in the back/forward popup menu
+    const int MaxNumberOfNavigationentries = 12;
+    // The maximum number of "Activate Tab" shortcuts
+    const int MaxActivateTabShortcuts = 9;

 }
 
 DolphinMainWindow::DolphinMainWindow() :
     KXmlGuiWindow(nullptr),
     m_newFileMenu(nullptr),
 }
 
 DolphinMainWindow::DolphinMainWindow() :
     KXmlGuiWindow(nullptr),
     m_newFileMenu(nullptr),

+    m_helpMenu(nullptr),

     m_tabWidget(nullptr),
     m_activeViewContainer(nullptr),
     m_actionHandler(nullptr),
     m_remoteEncoding(nullptr),
     m_settingsDialog(),
     m_tabWidget(nullptr),
     m_activeViewContainer(nullptr),
     m_actionHandler(nullptr),
     m_remoteEncoding(nullptr),
     m_settingsDialog(),

+    m_bookmarkHandler(nullptr),

     m_controlButton(nullptr),
     m_updateToolBarTimer(nullptr),
     m_lastHandleUrlStatJob(nullptr),
     m_terminalPanel(nullptr),
     m_placesPanel(nullptr),
     m_controlButton(nullptr),
     m_updateToolBarTimer(nullptr),
     m_lastHandleUrlStatJob(nullptr),
     m_terminalPanel(nullptr),
     m_placesPanel(nullptr),

-    m_tearDownFromPlacesRequested(false)
+    m_tearDownFromPlacesRequested(false),
+    m_backAction(nullptr),
+    m_forwardAction(nullptr)

 {
     Q_INIT_RESOURCE(dolphin);
 {
     Q_INIT_RESOURCE(dolphin);

+
+    new MainWindowAdaptor(this);
+
+#ifndef Q_OS_WIN
+       setWindowFlags(Qt::WindowContextHelpButtonHint);
+#endif

     setComponentName(QStringLiteral("dolphin"), QGuiApplication::applicationDisplayName());
     setObjectName(QStringLiteral("Dolphin#"));
 
     setComponentName(QStringLiteral("dolphin"), QGuiApplication::applicationDisplayName());
     setObjectName(QStringLiteral("Dolphin#"));
 


@@ -112,7 +136,7 @@ DolphinMainWindow::DolphinMainWindow() :
     KIO::FileUndoManager* undoManager = KIO::FileUndoManager::self();
     undoManager->setUiInterface(new UndoUiInterface());
 
     KIO::FileUndoManager* undoManager = KIO::FileUndoManager::self();
     undoManager->setUiInterface(new UndoUiInterface());
 

-    connect(undoManager, static_cast<void(KIO::FileUndoManager::*)(bool)>(&KIO::FileUndoManager::undoAvailable),
+    connect(undoManager, QOverload<bool>::of(&KIO::FileUndoManager::undoAvailable),

             this, &DolphinMainWindow::slotUndoAvailable);
     connect(undoManager, &KIO::FileUndoManager::undoTextChanged,
             this, &DolphinMainWindow::slotUndoTextChanged);
             this, &DolphinMainWindow::slotUndoAvailable);
     connect(undoManager, &KIO::FileUndoManager::undoTextChanged,
             this, &DolphinMainWindow::slotUndoTextChanged);


@@ -178,22 +202,53 @@ DolphinMainWindow::DolphinMainWindow() :
     auto *middleClickEventFilter = new MiddleClickActionEventFilter(this);
     connect(middleClickEventFilter, &MiddleClickActionEventFilter::actionMiddleClicked, this, &DolphinMainWindow::slotToolBarActionMiddleClicked);
     toolBar()->installEventFilter(middleClickEventFilter);
     auto *middleClickEventFilter = new MiddleClickActionEventFilter(this);
     connect(middleClickEventFilter, &MiddleClickActionEventFilter::actionMiddleClicked, this, &DolphinMainWindow::slotToolBarActionMiddleClicked);
     toolBar()->installEventFilter(middleClickEventFilter);

+
+    setupWhatsThis();
+
+    QTimer::singleShot(0, this, &DolphinMainWindow::setupUpdateOpenPreferredSearchToolAction);

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

+QVector<DolphinViewContainer*> DolphinMainWindow::viewContainers() const
+{
+    QVector<DolphinViewContainer*> viewContainers;
+    viewContainers.reserve(m_tabWidget->count());
+    for (int i = 0; i < m_tabWidget->count(); ++i) {
+        viewContainers << m_tabWidget->tabPageAt(i)->activeViewContainer();
+    }
+    return viewContainers;
+}
+

 void DolphinMainWindow::openDirectories(const QList<QUrl>& dirs, bool splitView)
 {
     m_tabWidget->openDirectories(dirs, splitView);
 }
 
 void DolphinMainWindow::openDirectories(const QList<QUrl>& dirs, bool splitView)
 {
     m_tabWidget->openDirectories(dirs, splitView);
 }
 

+void DolphinMainWindow::openDirectories(const QStringList& dirs, bool splitView)
+{
+    openDirectories(QUrl::fromStringList(dirs), splitView);
+}
+

 void DolphinMainWindow::openFiles(const QList<QUrl>& files, bool splitView)
 {
     m_tabWidget->openFiles(files, splitView);
 }
 
 void DolphinMainWindow::openFiles(const QList<QUrl>& files, bool splitView)
 {
     m_tabWidget->openFiles(files, splitView);
 }
 

+void DolphinMainWindow::openFiles(const QStringList& files, bool splitView)
+{
+    openFiles(QUrl::fromStringList(files), splitView);
+}
+
+void DolphinMainWindow::activateWindow()
+{
+    window()->setAttribute(Qt::WA_NativeWindow, true);
+    KStartupInfo::setNewStartupId(window()->windowHandle(), KStartupInfo::startupId());
+    KWindowSystem::activateWindow(window()->effectiveWinId());
+}
+

 void DolphinMainWindow::showCommand(CommandType command)
 {
     DolphinStatusBar* statusBar = m_activeViewContainer->statusBar();
 void DolphinMainWindow::showCommand(CommandType command)
 {
     DolphinStatusBar* statusBar = m_activeViewContainer->statusBar();


@@ -238,7 +293,7 @@ void DolphinMainWindow::changeUrl(const QUrl &url)
     }
 
     m_activeViewContainer->setUrl(url);
     }
 
     m_activeViewContainer->setUrl(url);

-    updateEditActions();
+    updateFileAndEditActions();

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


@@ -267,7 +322,7 @@ void DolphinMainWindow::slotEditableStateChanged(bool editable)
 
 void DolphinMainWindow::slotSelectionChanged(const KFileItemList& selection)
 {
 
 void DolphinMainWindow::slotSelectionChanged(const KFileItemList& selection)
 {

-    updateEditActions();
+    updateFileAndEditActions();

 
     const int selectedUrlsCount = m_tabWidget->currentTabPage()->selectedItemsCount();
 
 
     const int selectedUrlsCount = m_tabWidget->currentTabPage()->selectedItemsCount();
 


@@ -289,12 +344,15 @@ void DolphinMainWindow::updateHistory()
     QAction* backAction = actionCollection()->action(KStandardAction::name(KStandardAction::Back));
     if (backAction) {
         backAction->setToolTip(i18nc("@info", "Go back"));
     QAction* backAction = actionCollection()->action(KStandardAction::name(KStandardAction::Back));
     if (backAction) {
         backAction->setToolTip(i18nc("@info", "Go back"));

+        backAction->setWhatsThis(i18nc("@info:whatsthis go back", "Return to the previously viewed folder."));

         backAction->setEnabled(index < urlNavigator->historySize() - 1);
     }
 
     QAction* forwardAction = actionCollection()->action(KStandardAction::name(KStandardAction::Forward));
     if (forwardAction) {
         forwardAction->setToolTip(i18nc("@info", "Go forward"));
         backAction->setEnabled(index < urlNavigator->historySize() - 1);
     }
 
     QAction* forwardAction = actionCollection()->action(KStandardAction::name(KStandardAction::Forward));
     if (forwardAction) {
         forwardAction->setToolTip(i18nc("@info", "Go forward"));

+        forwardAction->setWhatsThis(xi18nc("@info:whatsthis go forward",
+            "This undoes a <interface>Go|Back</interface> action."));

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


@@ -315,9 +373,45 @@ void DolphinMainWindow::openNewActivatedTab()
     m_tabWidget->openNewActivatedTab();
 }
 
     m_tabWidget->openNewActivatedTab();
 }
 

-void DolphinMainWindow::openNewTab(const QUrl& url)
+void DolphinMainWindow::addToPlaces()
+{
+    QUrl url;
+    QString name;
+
+    // If nothing is selected, act on the current dir
+    if (m_activeViewContainer->view()->selectedItems().isEmpty()) {
+        url = m_activeViewContainer->url();
+        name = m_activeViewContainer->placesText();
+    } else {
+        const auto dirToAdd = m_activeViewContainer->view()->selectedItems().first();
+        url = dirToAdd.url();
+        name = dirToAdd.name();
+    }
+    if (url.isValid()) {
+        PlacesItemModel model;
+        QString icon;
+        if (m_activeViewContainer->isSearchModeEnabled()) {
+            icon = QStringLiteral("folder-saved-search-symbolic");
+        } else {
+            icon = KIO::iconNameForUrl(url);
+        }
+        model.createPlacesItem(name, url, icon);
+    }
+}
+
+void DolphinMainWindow::openNewTab(const QUrl& url, DolphinTabWidget::TabPlacement tabPlacement)
+{
+    m_tabWidget->openNewTab(url, QUrl(), tabPlacement);
+}
+
+void DolphinMainWindow::openNewTabAfterCurrentTab(const QUrl& url)

 {
 {

-    m_tabWidget->openNewTab(url);
+    m_tabWidget->openNewTab(url, QUrl(), DolphinTabWidget::AfterCurrentTab);
+}
+
+void DolphinMainWindow::openNewTabAfterLastTab(const QUrl& url)
+{
+    m_tabWidget->openNewTab(url, QUrl(), DolphinTabWidget::AfterLastTab);

 }
 
 void DolphinMainWindow::openInNewTab()
 }
 
 void DolphinMainWindow::openInNewTab()


@@ -328,7 +422,7 @@ void DolphinMainWindow::openInNewTab()
     foreach (const KFileItem& item, list) {
         const QUrl& url = DolphinView::openItemAsFolderUrl(item);
         if (!url.isEmpty()) {
     foreach (const KFileItem& item, list) {
         const QUrl& url = DolphinView::openItemAsFolderUrl(item);
         if (!url.isEmpty()) {

-            openNewTab(url);
+            openNewTabAfterCurrentTab(url);

             tabCreated = true;
         }
     }
             tabCreated = true;
         }
     }


@@ -336,7 +430,7 @@ void DolphinMainWindow::openInNewTab()
     // if no new tab has been created from the selection
     // open the current directory in a new tab
     if (!tabCreated) {
     // if no new tab has been created from the selection
     // open the current directory in a new tab
     if (!tabCreated) {

-        openNewTab(m_activeViewContainer->url());
+        openNewTabAfterCurrentTab(m_activeViewContainer->url());

     }
 }
 
     }
 }
 


@@ -435,7 +529,7 @@ void DolphinMainWindow::closeEvent(QCloseEvent* event)
         }
     }
 
         }
     }
 

-    if (m_terminalPanel->hasProgramRunning() && GeneralSettings::confirmClosingTerminalRunningProgram() && closedByUser) {
+    if (m_terminalPanel && m_terminalPanel->hasProgramRunning() && GeneralSettings::confirmClosingTerminalRunningProgram() && closedByUser) {

         // Ask if the user really wants to quit Dolphin with a program that is still running in the Terminal panel
         // Open a confirmation dialog with 3 buttons:
         // QDialogButtonBox::Yes    -> Quit
         // Ask if the user really wants to quit Dolphin with a program that is still running in the Terminal panel
         // Open a confirmation dialog with 3 buttons:
         // QDialogButtonBox::Yes    -> Quit


@@ -453,7 +547,7 @@ void DolphinMainWindow::closeEvent(QCloseEvent* event)
         if (!m_terminalPanel->isVisible()) {
             KGuiItem::assign(
                     buttons->button(QDialogButtonBox::No),
         if (!m_terminalPanel->isVisible()) {
             KGuiItem::assign(
                     buttons->button(QDialogButtonBox::No),

-                    KGuiItem(i18n("Show &Terminal Panel"), QIcon::fromTheme(QStringLiteral("utilities-terminal"))));
+                    KGuiItem(i18n("Show &Terminal Panel"), QIcon::fromTheme(QStringLiteral("dialog-scripts"))));

         }
         KGuiItem::assign(buttons->button(QDialogButtonBox::Cancel), KStandardGuiItem::cancel());
 
         }
         KGuiItem::assign(buttons->button(QDialogButtonBox::Cancel), KStandardGuiItem::cancel());
 


@@ -487,6 +581,14 @@ void DolphinMainWindow::closeEvent(QCloseEvent* event)
         }
     }
 
         }
     }
 

+    if (GeneralSettings::rememberOpenedTabs())  {
+        KConfigGui::setSessionConfig(QStringLiteral("dolphin"), QStringLiteral("dolphin"));
+        KConfig *config = KConfigGui::sessionConfig();
+        saveGlobalProperties(config);
+        savePropertiesInternal(config, 1);
+        config->sync();
+    }
+

     GeneralSettings::setVersion(CurrentDolphinVersion);
     GeneralSettings::self()->save();
 
     GeneralSettings::setVersion(CurrentDolphinVersion);
     GeneralSettings::self()->save();
 


@@ -507,13 +609,13 @@ void DolphinMainWindow::updateNewMenu()
 {
     m_newFileMenu->setViewShowsHiddenFiles(activeViewContainer()->view()->hiddenFilesShown());
     m_newFileMenu->checkUpToDate();
 {
     m_newFileMenu->setViewShowsHiddenFiles(activeViewContainer()->view()->hiddenFilesShown());
     m_newFileMenu->checkUpToDate();

-    m_newFileMenu->setPopupFiles(activeViewContainer()->url());
+    m_newFileMenu->setPopupFiles(QList<QUrl>() << activeViewContainer()->url());

 }
 
 void DolphinMainWindow::createDirectory()
 {
     m_newFileMenu->setViewShowsHiddenFiles(activeViewContainer()->view()->hiddenFilesShown());
 }
 
 void DolphinMainWindow::createDirectory()
 {
     m_newFileMenu->setViewShowsHiddenFiles(activeViewContainer()->view()->hiddenFilesShown());

-    m_newFileMenu->setPopupFiles(activeViewContainer()->url());
+    m_newFileMenu->setPopupFiles(QList<QUrl>() << activeViewContainer()->url());

     m_newFileMenu->createDirectory();
 }
 
     m_newFileMenu->createDirectory();
 }
 


@@ -570,6 +672,12 @@ void DolphinMainWindow::find()
     m_activeViewContainer->setSearchModeEnabled(true);
 }
 
     m_activeViewContainer->setSearchModeEnabled(true);
 }
 

+void DolphinMainWindow::updateSearchAction()
+{
+    QAction* toggleSearchAction = actionCollection()->action(QStringLiteral("toggle_search"));
+    toggleSearchAction->setChecked(m_activeViewContainer->isSearchModeEnabled());
+}
+

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


@@ -596,6 +704,56 @@ void DolphinMainWindow::slotToolBarActionMiddleClicked(QAction *action)
     }
 }
 
     }
 }
 

+void DolphinMainWindow::slotAboutToShowBackPopupMenu()
+{
+    KUrlNavigator* urlNavigator = m_activeViewContainer->urlNavigator();
+    int entries = 0;
+    m_backAction->menu()->clear();
+    for (int i = urlNavigator->historyIndex() + 1; i < urlNavigator->historySize() && entries < MaxNumberOfNavigationentries; ++i, ++entries) {
+        QAction* action = new QAction(urlNavigator->locationUrl(i).toString(QUrl::PreferLocalFile), m_backAction->menu());
+        action->setData(i);
+        m_backAction->menu()->addAction(action);
+    }
+}
+
+void DolphinMainWindow::slotGoBack(QAction* action)
+{
+    int gotoIndex = action->data().value<int>();
+    KUrlNavigator* urlNavigator = m_activeViewContainer->urlNavigator();
+    for (int i = gotoIndex - urlNavigator->historyIndex(); i > 0; --i) {
+        goBack();
+    }
+}
+
+void DolphinMainWindow::slotBackForwardActionMiddleClicked(QAction* action)
+{
+    if (action) {
+        KUrlNavigator* urlNavigator = activeViewContainer()->urlNavigator();
+        openNewTabAfterCurrentTab(urlNavigator->locationUrl(action->data().value<int>()));
+    }
+}
+
+void DolphinMainWindow::slotAboutToShowForwardPopupMenu()
+{
+    KUrlNavigator* urlNavigator = m_activeViewContainer->urlNavigator();
+    int entries = 0;
+    m_forwardAction->menu()->clear();
+    for (int i = urlNavigator->historyIndex() - 1; i >= 0 && entries < MaxNumberOfNavigationentries; --i, ++entries) {
+        QAction* action = new QAction(urlNavigator->locationUrl(i).toString(QUrl::PreferLocalFile), m_forwardAction->menu());
+        action->setData(i);
+        m_forwardAction->menu()->addAction(action);
+    }
+}
+
+void DolphinMainWindow::slotGoForward(QAction* action)
+{
+    int gotoIndex = action->data().value<int>();
+    KUrlNavigator* urlNavigator = m_activeViewContainer->urlNavigator();
+    for (int i = urlNavigator->historyIndex() - gotoIndex; i > 0; --i) {
+        goForward();
+    }
+}
+

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


@@ -704,7 +862,7 @@ void DolphinMainWindow::togglePanelLockState()
 
 void DolphinMainWindow::slotTerminalPanelVisibilityChanged()
 {
 
 void DolphinMainWindow::slotTerminalPanelVisibilityChanged()
 {

-    if (m_terminalPanel->isHiddenInVisibleWindow()) {
+    if (m_terminalPanel->isHiddenInVisibleWindow() && m_activeViewContainer) {

         m_activeViewContainer->view()->setFocus();
     }
 }
         m_activeViewContainer->view()->setFocus();
     }
 }


@@ -740,25 +898,25 @@ void DolphinMainWindow::goBackInNewTab()
 {
     KUrlNavigator* urlNavigator = activeViewContainer()->urlNavigator();
     const int index = urlNavigator->historyIndex() + 1;
 {
     KUrlNavigator* urlNavigator = activeViewContainer()->urlNavigator();
     const int index = urlNavigator->historyIndex() + 1;

-    openNewTab(urlNavigator->locationUrl(index));
+    openNewTabAfterCurrentTab(urlNavigator->locationUrl(index));

 }
 
 void DolphinMainWindow::goForwardInNewTab()
 {
     KUrlNavigator* urlNavigator = activeViewContainer()->urlNavigator();
     const int index = urlNavigator->historyIndex() - 1;
 }
 
 void DolphinMainWindow::goForwardInNewTab()
 {
     KUrlNavigator* urlNavigator = activeViewContainer()->urlNavigator();
     const int index = urlNavigator->historyIndex() - 1;

-    openNewTab(urlNavigator->locationUrl(index));
+    openNewTabAfterCurrentTab(urlNavigator->locationUrl(index));

 }
 
 void DolphinMainWindow::goUpInNewTab()
 {
     const QUrl currentUrl = activeViewContainer()->urlNavigator()->locationUrl();
 }
 
 void DolphinMainWindow::goUpInNewTab()
 {
     const QUrl currentUrl = activeViewContainer()->urlNavigator()->locationUrl();

-    openNewTab(KIO::upUrl(currentUrl));
+    openNewTabAfterCurrentTab(KIO::upUrl(currentUrl));

 }
 
 void DolphinMainWindow::goHomeInNewTab()
 {
 }
 
 void DolphinMainWindow::goHomeInNewTab()
 {

-    openNewTab(Dolphin::homeUrl());
+    openNewTabAfterCurrentTab(Dolphin::homeUrl());

 }
 
 void DolphinMainWindow::compareFiles()
 }
 
 void DolphinMainWindow::compareFiles()


@@ -778,7 +936,10 @@ void DolphinMainWindow::compareFiles()
     command.append("\" \"");
     command.append(urlB.toDisplayString(QUrl::PreferLocalFile));
     command.append('\"');
     command.append("\" \"");
     command.append(urlB.toDisplayString(QUrl::PreferLocalFile));
     command.append('\"');

-    KRun::runCommand(command, QStringLiteral("Kompare"), QStringLiteral("kompare"), this);
+
+    KIO::CommandLauncherJob *job = new KIO::CommandLauncherJob(command, this);
+    job->setDesktopName(QStringLiteral("org.kde.kompare"));
+    job->start();

 }
 
 void DolphinMainWindow::toggleShowMenuBar()
 }
 
 void DolphinMainWindow::toggleShowMenuBar()


@@ -792,23 +953,88 @@ void DolphinMainWindow::toggleShowMenuBar()
     }
 }
 
     }
 }
 

-void DolphinMainWindow::openTerminal()
+QString DolphinMainWindow::activeContainerLocalPath()

 {
 {

-    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.

     KIO::StatJob* statJob = KIO::mostLocalUrl(m_activeViewContainer->url());
     KJobWidgets::setWindow(statJob, this);
     statJob->exec();
     QUrl url = statJob->mostLocalUrl();
     KIO::StatJob* statJob = KIO::mostLocalUrl(m_activeViewContainer->url());
     KJobWidgets::setWindow(statJob, this);
     statJob->exec();
     QUrl url = statJob->mostLocalUrl();

-
-    //If the URL is local after the above conversion, set the directory.

     if (url.isLocalFile()) {
     if (url.isLocalFile()) {

-        dir = url.toLocalFile();
+        return url.toLocalFile();
+    }
+    return QDir::homePath();
+}
+
+QPointer<QAction> DolphinMainWindow::preferredSearchTool()
+{
+    m_searchTools.clear();
+    KMoreToolsMenuFactory("dolphin/search-tools").fillMenuFromGroupingNames(
+        &m_searchTools, { "files-find" }, m_activeViewContainer->url()
+    );
+    QList<QAction*> actions = m_searchTools.actions();
+    if (actions.isEmpty()) {
+        return nullptr;
+    }
+    QAction* action = actions.first();
+    if (action->isSeparator()) {
+        return nullptr;
+    }
+    return action;
+}
+
+void DolphinMainWindow::setupUpdateOpenPreferredSearchToolAction()
+{
+    QAction* openPreferredSearchTool = actionCollection()->action(QStringLiteral("open_preferred_search_tool"));
+    const QList<QWidget*> widgets = openPreferredSearchTool->associatedWidgets();
+    for (QWidget* widget : widgets) {
+        QMenu* menu = qobject_cast<QMenu*>(widget);
+        if (menu) {
+            connect(menu, &QMenu::aboutToShow, this, &DolphinMainWindow::updateOpenPreferredSearchToolAction);
+        }
+    }
+
+    // Update the open_preferred_search_tool action *before* the Configure Shortcuts window is shown,
+    // since this action is then listed in that window and it should be up-to-date when it is displayed.
+    // This update is instantaneous if user made no changes to the search tools in the meantime.
+    // Maybe all KStandardActions should defer calls to their slots, so that we could simply connect() to trigger()?
+    connect(
+        actionCollection()->action(KStandardAction::name(KStandardAction::KeyBindings)), &QAction::hovered,
+        this, &DolphinMainWindow::updateOpenPreferredSearchToolAction
+    );
+
+    updateOpenPreferredSearchToolAction();
+}
+
+void DolphinMainWindow::updateOpenPreferredSearchToolAction()
+{
+    QAction* openPreferredSearchTool = actionCollection()->action(QStringLiteral("open_preferred_search_tool"));
+    if (!openPreferredSearchTool) {
+        return;
+    }
+    QPointer<QAction> tool = preferredSearchTool();
+    if (tool) {
+        openPreferredSearchTool->setVisible(true);
+        openPreferredSearchTool->setText(i18nc("@action:inmenu Tools", "Open %1", tool->text()));
+        openPreferredSearchTool->setIcon(tool->icon());
+    } else {
+        openPreferredSearchTool->setVisible(false);
+        // still visible in Shortcuts configuration window
+        openPreferredSearchTool->setText(i18nc("@action:inmenu Tools", "Open Preferred Search Tool"));
+        openPreferredSearchTool->setIcon(QIcon::fromTheme(QStringLiteral("search")));
+    }
+}
+
+void DolphinMainWindow::openPreferredSearchTool()
+{
+    QPointer<QAction> tool = preferredSearchTool();
+    if (tool) {
+        tool->trigger();

     }
     }

+}

 
 

-    KToolInvocation::invokeTerminal(QString(), dir);
+void DolphinMainWindow::openTerminal()
+{
+    KToolInvocation::invokeTerminal(QString(), activeContainerLocalPath());

 }
 
 void DolphinMainWindow::editSettings()
 }
 
 void DolphinMainWindow::editSettings()


@@ -889,7 +1115,7 @@ void DolphinMainWindow::openContextMenu(const QPoint& pos,
         break;
 
     case DolphinContextMenu::OpenParentFolderInNewTab:
         break;
 
     case DolphinContextMenu::OpenParentFolderInNewTab:

-        openNewTab(KIO::upUrl(item.url()));
+        openNewTabAfterLastTab(KIO::upUrl(item.url()));

         break;
 
     case DolphinContextMenu::None:
         break;
 
     case DolphinContextMenu::None:


@@ -914,14 +1140,15 @@ void DolphinMainWindow::updateControlMenu()
 
     KActionCollection* ac = actionCollection();
 
 
     KActionCollection* ac = actionCollection();
 

-    // Add "Create New" menu

     menu->addMenu(m_newFileMenu->menu());
     menu->addMenu(m_newFileMenu->menu());

+    addActionToMenu(ac->action(QStringLiteral("file_new")), menu);
+    addActionToMenu(ac->action(QStringLiteral("new_tab")), menu);
+    addActionToMenu(ac->action(QStringLiteral("closed_tabs")), menu);

 
     menu->addSeparator();
 
     // Add "Edit" actions
     bool added = addActionToMenu(ac->action(KStandardAction::name(KStandardAction::Undo)), menu) |
 
     menu->addSeparator();
 
     // Add "Edit" actions
     bool added = addActionToMenu(ac->action(KStandardAction::name(KStandardAction::Undo)), menu) |

-                 addActionToMenu(ac->action(KStandardAction::name(KStandardAction::Find)), menu) |

                  addActionToMenu(ac->action(KStandardAction::name(KStandardAction::SelectAll)), menu) |
                  addActionToMenu(ac->action(QStringLiteral("invert_selection")), menu);
 
                  addActionToMenu(ac->action(KStandardAction::name(KStandardAction::SelectAll)), menu) |
                  addActionToMenu(ac->action(QStringLiteral("invert_selection")), menu);
 


@@ -932,64 +1159,42 @@ void DolphinMainWindow::updateControlMenu()
     // Add "View" actions
     if (!GeneralSettings::showZoomSlider()) {
         addActionToMenu(ac->action(KStandardAction::name(KStandardAction::ZoomIn)), menu);
     // Add "View" actions
     if (!GeneralSettings::showZoomSlider()) {
         addActionToMenu(ac->action(KStandardAction::name(KStandardAction::ZoomIn)), menu);

+        addActionToMenu(ac->action(QStringLiteral("view_zoom_reset")), menu);

         addActionToMenu(ac->action(KStandardAction::name(KStandardAction::ZoomOut)), menu);
         menu->addSeparator();
     }
 
         addActionToMenu(ac->action(KStandardAction::name(KStandardAction::ZoomOut)), menu);
         menu->addSeparator();
     }
 

-    added = addActionToMenu(ac->action(QStringLiteral("sort")), menu) |
-            addActionToMenu(ac->action(QStringLiteral("view_mode")), menu) |
-            addActionToMenu(ac->action(QStringLiteral("additional_info")), menu) |
-            addActionToMenu(ac->action(QStringLiteral("show_preview")), menu) |
+    added = addActionToMenu(ac->action(QStringLiteral("show_preview")), menu) |

             addActionToMenu(ac->action(QStringLiteral("show_in_groups")), menu) |
             addActionToMenu(ac->action(QStringLiteral("show_in_groups")), menu) |

-            addActionToMenu(ac->action(QStringLiteral("show_hidden_files")), menu);
-
-    if (added) {
-        menu->addSeparator();
-    }
-
-    added = addActionToMenu(ac->action(QStringLiteral("split_view")), menu) |
-            addActionToMenu(ac->action(KStandardAction::name(KStandardAction::Redisplay)), menu) |
+            addActionToMenu(ac->action(QStringLiteral("show_hidden_files")), menu) |
+            addActionToMenu(ac->action(QStringLiteral("additional_info")), menu) |

             addActionToMenu(ac->action(QStringLiteral("view_properties")), menu);
             addActionToMenu(ac->action(QStringLiteral("view_properties")), menu);

+

     if (added) {
         menu->addSeparator();
     }
 
     if (added) {
         menu->addSeparator();
     }
 

-    addActionToMenu(ac->action(QStringLiteral("panels")), menu);
-    QMenu* locationBarMenu = new QMenu(i18nc("@action:inmenu", "Location Bar"), menu);
-    locationBarMenu->addAction(ac->action(QStringLiteral("editable_location")));
-    locationBarMenu->addAction(ac->action(QStringLiteral("replace_location")));
-    menu->addMenu(locationBarMenu);
+    // Add a curated assortment of items from the "Tools" menu
+    addActionToMenu(ac->action(QStringLiteral("show_filter_bar")), menu);
+    addActionToMenu(ac->action(QStringLiteral("open_preferred_search_tool")), menu);
+    addActionToMenu(ac->action(QStringLiteral("open_terminal")), menu);
+    connect(menu, &QMenu::aboutToShow, this, &DolphinMainWindow::updateOpenPreferredSearchToolAction);

 
     menu->addSeparator();
 
 
     menu->addSeparator();
 

-    // Add "Go" menu
-    QMenu* goMenu = new QMenu(i18nc("@action:inmenu", "Go"), menu);
-    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(QStringLiteral("closed_tabs")));
-    menu->addMenu(goMenu);
-
-    // Add "Tool" menu
-    QMenu* toolsMenu = new QMenu(i18nc("@action:inmenu", "Tools"), menu);
-    toolsMenu->addAction(ac->action(QStringLiteral("show_filter_bar")));
-    toolsMenu->addAction(ac->action(QStringLiteral("compare_files")));
-    toolsMenu->addAction(ac->action(QStringLiteral("open_terminal")));
-    toolsMenu->addAction(ac->action(QStringLiteral("change_remote_encoding")));
-    menu->addMenu(toolsMenu);
+    // Add "Show Panels" menu
+    addActionToMenu(ac->action(QStringLiteral("panels")), menu);

 
     // 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 "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);

+    addActionToMenu(ac->action(KStandardAction::name(KStandardAction::ShowMenubar)), menu);

 
     // Add "Help" menu
 
     // Add "Help" menu

-    auto helpMenu = new KHelpMenu(menu);
-    menu->addMenu(helpMenu->menu());
-
-    menu->addSeparator();
-    addActionToMenu(ac->action(KStandardAction::name(KStandardAction::ShowMenubar)), menu);
+    auto helpMenu = m_helpMenu->menu();
+    helpMenu->setIcon(QIcon::fromTheme(QStringLiteral("system-help")));
+    menu->addMenu(helpMenu);

 }
 
 void DolphinMainWindow::updateToolBar()
 }
 
 void DolphinMainWindow::updateToolBar()


@@ -1031,11 +1236,18 @@ void DolphinMainWindow::activeViewChanged(DolphinViewContainer* viewContainer)
     m_activeViewContainer = viewContainer;
 
     if (oldViewContainer) {
     m_activeViewContainer = viewContainer;
 
     if (oldViewContainer) {

+        const QAction* toggleSearchAction = actionCollection()->action(QStringLiteral("toggle_search"));
+        toggleSearchAction->disconnect(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);
         // 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);

+
+        // except the requestItemInfo so that on hover the information panel can still be updated
+        connect(oldViewContainer->view(), &DolphinView::requestItemInfo,
+                this, &DolphinMainWindow::requestItemInfo);

     }
 
     connectViewSignals(viewContainer);
     }
 
     connectViewSignals(viewContainer);


@@ -1043,10 +1255,11 @@ void DolphinMainWindow::activeViewChanged(DolphinViewContainer* viewContainer)
     m_actionHandler->setCurrentView(viewContainer->view());
 
     updateHistory();
     m_actionHandler->setCurrentView(viewContainer->view());
 
     updateHistory();

-    updateEditActions();
+    updateFileAndEditActions();

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

+    updateSearchAction();

 
     const QUrl url = viewContainer->url();
     emit urlChanged(url);
 
     const QUrl url = viewContainer->url();
     emit urlChanged(url);


@@ -1055,13 +1268,17 @@ void DolphinMainWindow::activeViewChanged(DolphinViewContainer* viewContainer)
 void DolphinMainWindow::tabCountChanged(int count)
 {
     const bool enableTabActions = (count > 1);
 void DolphinMainWindow::tabCountChanged(int count)
 {
     const bool enableTabActions = (count > 1);

+    for (int i = 0; i < MaxActivateTabShortcuts; ++i) {
+        actionCollection()->action(QStringLiteral("activate_tab_%1").arg(i))->setEnabled(enableTabActions);
+    }
+    actionCollection()->action(QStringLiteral("activate_last_tab"))->setEnabled(enableTabActions);

     actionCollection()->action(QStringLiteral("activate_next_tab"))->setEnabled(enableTabActions);
     actionCollection()->action(QStringLiteral("activate_prev_tab"))->setEnabled(enableTabActions);
 }
 
 void DolphinMainWindow::updateWindowTitle()
 {
     actionCollection()->action(QStringLiteral("activate_next_tab"))->setEnabled(enableTabActions);
     actionCollection()->action(QStringLiteral("activate_prev_tab"))->setEnabled(enableTabActions);
 }
 
 void DolphinMainWindow::updateWindowTitle()
 {

-    const QString newTitle = m_activeViewContainer->caption();
+    const QString newTitle = m_activeViewContainer->captionWindowTitle();

     if (windowTitle() != newTitle) {
         setWindowTitle(newTitle);
     }
     if (windowTitle() != newTitle) {
         setWindowTitle(newTitle);
     }


@@ -1069,7 +1286,7 @@ void DolphinMainWindow::updateWindowTitle()
 
 void DolphinMainWindow::slotStorageTearDownFromPlacesRequested(const QString& mountPath)
 {
 
 void DolphinMainWindow::slotStorageTearDownFromPlacesRequested(const QString& mountPath)
 {

-    if (m_terminalPanel->currentWorkingDirectory().startsWith(mountPath)) {
+    if (m_terminalPanel && m_terminalPanel->currentWorkingDirectory().startsWith(mountPath)) {

         m_tearDownFromPlacesRequested = true;
         m_terminalPanel->goHome();
         // m_placesPanel->proceedWithTearDown() will be called in slotTerminalDirectoryChanged
         m_tearDownFromPlacesRequested = true;
         m_terminalPanel->goHome();
         // m_placesPanel->proceedWithTearDown() will be called in slotTerminalDirectoryChanged


@@ -1080,7 +1297,7 @@ void DolphinMainWindow::slotStorageTearDownFromPlacesRequested(const QString& mo
 
 void DolphinMainWindow::slotStorageTearDownExternallyRequested(const QString& mountPath)
 {
 
 void DolphinMainWindow::slotStorageTearDownExternallyRequested(const QString& mountPath)
 {

-    if (m_terminalPanel->currentWorkingDirectory().startsWith(mountPath)) {
+    if (m_terminalPanel && m_terminalPanel->currentWorkingDirectory().startsWith(mountPath)) {

         m_tearDownFromPlacesRequested = false;
         m_terminalPanel->goHome();
     }
         m_tearDownFromPlacesRequested = false;
         m_terminalPanel->goHome();
     }


@@ -1090,7 +1307,6 @@ void DolphinMainWindow::setupActions()
 {
     // setup 'File' menu
     m_newFileMenu = new DolphinNewFileMenu(actionCollection(), this);
 {
     // setup 'File' menu
     m_newFileMenu = new DolphinNewFileMenu(actionCollection(), this);

-    m_newFileMenu->setObjectName("newFileMenu");

     QMenu* menu = m_newFileMenu->menu();
     menu->setTitle(i18nc("@title:menu Create new folder, file, link, etc.", "Create New"));
     menu->setIcon(QIcon::fromTheme(QStringLiteral("document-new")));
     QMenu* menu = m_newFileMenu->menu();
     menu->setTitle(i18nc("@title:menu Create new folder, file, link, etc.", "Create New"));
     menu->setIcon(QIcon::fromTheme(QStringLiteral("document-new")));


@@ -1100,40 +1316,101 @@ void DolphinMainWindow::setupActions()
 
     QAction* newWindow = KStandardAction::openNew(this, &DolphinMainWindow::openNewMainWindow, actionCollection());
     newWindow->setText(i18nc("@action:inmenu File", "New &Window"));
 
     QAction* newWindow = KStandardAction::openNew(this, &DolphinMainWindow::openNewMainWindow, actionCollection());
     newWindow->setText(i18nc("@action:inmenu File", "New &Window"));

+    newWindow->setToolTip(i18nc("@info", "Open a new Dolphin window"));
+    newWindow->setWhatsThis(xi18nc("@info:whatsthis", "This opens a new "
+        "window just like this one with the current location and view."
+        "<nl/>You can drag and drop items between windows."));

     newWindow->setIcon(QIcon::fromTheme(QStringLiteral("window-new")));
 
     QAction* newTab = actionCollection()->addAction(QStringLiteral("new_tab"));
     newTab->setIcon(QIcon::fromTheme(QStringLiteral("tab-new")));
     newTab->setText(i18nc("@action:inmenu File", "New Tab"));
     newWindow->setIcon(QIcon::fromTheme(QStringLiteral("window-new")));
 
     QAction* newTab = actionCollection()->addAction(QStringLiteral("new_tab"));
     newTab->setIcon(QIcon::fromTheme(QStringLiteral("tab-new")));
     newTab->setText(i18nc("@action:inmenu File", "New Tab"));

+    newTab->setWhatsThis(xi18nc("@info:whatsthis", "This opens a new "
+        "<emphasis>Tab</emphasis> with the current location and view.<nl/>"
+        "A tab is an additional view within this window. "
+        "You can drag and drop items between tabs."));

     actionCollection()->setDefaultShortcuts(newTab, {Qt::CTRL + Qt::Key_T, Qt::CTRL + Qt::SHIFT + Qt::Key_N});
     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));
+    connect(newTab, &QAction::triggered, this, &DolphinMainWindow::openNewActivatedTab);

 
 

-    QAction* closeTab = KStandardAction::close(
-            m_tabWidget, static_cast<void(DolphinTabWidget::*)()>(&DolphinTabWidget::closeTab), actionCollection());
+    QAction* addToPlaces = actionCollection()->addAction(QStringLiteral("add_to_places"));
+    addToPlaces->setIcon(QIcon::fromTheme(QStringLiteral("bookmark-new")));
+    addToPlaces->setText(i18nc("@action:inmenu Add current folder to places", "Add to Places"));
+    addToPlaces->setWhatsThis(xi18nc("@info:whatsthis", "This adds the selected folder "
+        "to the Places panel."));
+    connect(addToPlaces, &QAction::triggered, this, &DolphinMainWindow::addToPlaces);
+
+    QAction* closeTab = KStandardAction::close(m_tabWidget, QOverload<>::of(&DolphinTabWidget::closeTab), actionCollection());

     closeTab->setText(i18nc("@action:inmenu File", "Close Tab"));
     closeTab->setText(i18nc("@action:inmenu File", "Close Tab"));

+    closeTab->setWhatsThis(i18nc("@info:whatsthis", "This closes the "
+        "currently viewed tab. If no more tabs are left this window "
+        "will close instead."));

 
 

-    KStandardAction::quit(this, &DolphinMainWindow::quit, actionCollection());
+    QAction* quitAction = KStandardAction::quit(this, &DolphinMainWindow::quit, actionCollection());
+    quitAction->setWhatsThis(i18nc("@info:whatsthis quit", "This closes this window."));

 
     // setup 'Edit' menu
     KStandardAction::undo(this,
                           &DolphinMainWindow::undo,
                           actionCollection());
 
 
     // setup 'Edit' menu
     KStandardAction::undo(this,
                           &DolphinMainWindow::undo,
                           actionCollection());
 

-
-    KStandardAction::cut(this, &DolphinMainWindow::cut, actionCollection());
-    KStandardAction::copy(this, &DolphinMainWindow::copy, actionCollection());
+    // i18n: This will be the last paragraph for the whatsthis for all three:
+    // Cut, Copy and Paste
+    const QString cutCopyPastePara = xi18nc("@info:whatsthis", "<para><emphasis>Cut, "
+        "Copy</emphasis> and <emphasis>Paste</emphasis> work between many "
+        "applications and are among the most used commands. That's why their "
+        "<emphasis>keyboard shortcuts</emphasis> are prominently placed right "
+        "next to each other on the keyboard: <shortcut>Ctrl+X</shortcut>, "
+        "<shortcut>Ctrl+C</shortcut> and <shortcut>Ctrl+V</shortcut>.</para>");
+    QAction* cutAction = KStandardAction::cut(this, &DolphinMainWindow::cut, actionCollection());
+    cutAction->setWhatsThis(xi18nc("@info:whatsthis cut", "This copies the items "
+        "in your current selection to the <emphasis>clipboard</emphasis>.<nl/>"
+        "Use the <emphasis>Paste</emphasis> action afterwards to copy them from "
+        "the clipboard to a new location. The items will be removed from their "
+        "initial location.") + cutCopyPastePara);
+    QAction* copyAction = KStandardAction::copy(this, &DolphinMainWindow::copy, actionCollection());
+    copyAction->setWhatsThis(xi18nc("@info:whatsthis copy", "This copies the "
+        "items in your current selection to the <emphasis>clipboard</emphasis>."
+        "<nl/>Use the <emphasis>Paste</emphasis> action afterwards to copy them "
+        "from the clipboard to a new location.") +  cutCopyPastePara);

     QAction* paste = KStandardAction::paste(this, &DolphinMainWindow::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"));
     QAction* paste = KStandardAction::paste(this, &DolphinMainWindow::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"));

-
-    KStandardAction::find(this, &DolphinMainWindow::find, actionCollection());
-
-    KStandardAction::selectAll(this, &DolphinMainWindow::selectAll, actionCollection());
+    paste->setWhatsThis(xi18nc("@info:whatsthis paste", "This copies the items from "
+        "your <emphasis>clipboard</emphasis> to the currently viewed folder.<nl/>"
+        "If the items were added to the clipboard by the <emphasis>Cut</emphasis> "
+        "action they are removed from their old location.") +  cutCopyPastePara);
+
+    QAction *searchAction = KStandardAction::find(this, &DolphinMainWindow::find, actionCollection());
+    searchAction->setText(i18n("Search..."));
+    searchAction->setToolTip(i18nc("@info:tooltip", "Search for files and folders"));
+    searchAction->setWhatsThis(xi18nc("@info:whatsthis find", "<para>This helps you "
+        "find files and folders by opening a <emphasis>find bar</emphasis>. "
+        "There you can enter search terms and specify settings to find the "
+        "objects you are looking for.</para><para>Use this help again on "
+        "the find bar so we can have a look at it while the settings are "
+        "explained.</para>"));
+
+    // toggle_search acts as a copy of the main searchAction to be used mainly
+    // in the toolbar, with no default shortcut attached, to avoid messing with
+    // existing workflows (search bar always open and Ctrl-F to focus)
+    QAction *toggleSearchAction = actionCollection()->addAction(QStringLiteral("toggle_search"));
+    toggleSearchAction->setText(i18nc("@action:inmenu", "Toggle Search Bar"));
+    toggleSearchAction->setIconText(i18nc("@action:intoolbar", "Search"));
+    toggleSearchAction->setIcon(searchAction->icon());
+    toggleSearchAction->setToolTip(searchAction->toolTip());
+    toggleSearchAction->setWhatsThis(searchAction->whatsThis());
+    toggleSearchAction->setCheckable(true);
+
+    QAction* selectAllAction = KStandardAction::selectAll(this, &DolphinMainWindow::selectAll, actionCollection());
+    selectAllAction->setWhatsThis(xi18nc("@info:whatsthis", "This selects all "
+        "files and folders in the current location."));

 
     QAction* invertSelection = actionCollection()->addAction(QStringLiteral("invert_selection"));
     invertSelection->setText(i18nc("@action:inmenu Edit", "Invert Selection"));
 
     QAction* invertSelection = actionCollection()->addAction(QStringLiteral("invert_selection"));
     invertSelection->setText(i18nc("@action:inmenu Edit", "Invert Selection"));

+    invertSelection->setWhatsThis(xi18nc("@info:whatsthis invert", "This selects all "
+        "objects that you have currently <emphasis>not</emphasis> selected instead."));

     invertSelection->setIcon(QIcon::fromTheme(QStringLiteral("edit-select-invert")));
     actionCollection()->setDefaultShortcut(invertSelection, Qt::CTRL + Qt::SHIFT + Qt::Key_A);
     connect(invertSelection, &QAction::triggered, this, &DolphinMainWindow::invertSelection);
     invertSelection->setIcon(QIcon::fromTheme(QStringLiteral("edit-select-invert")));
     actionCollection()->setDefaultShortcut(invertSelection, Qt::CTRL + Qt::SHIFT + Qt::Key_A);
     connect(invertSelection, &QAction::triggered, this, &DolphinMainWindow::invertSelection);


@@ -1142,6 +1419,10 @@ void DolphinMainWindow::setupActions()
     // (note that most of it is set up in DolphinViewActionHandler)
 
     QAction* split = actionCollection()->addAction(QStringLiteral("split_view"));
     // (note that most of it is set up in DolphinViewActionHandler)
 
     QAction* split = actionCollection()->addAction(QStringLiteral("split_view"));

+    split->setWhatsThis(xi18nc("@info:whatsthis find", "<para>This splits "
+        "the folder view below into two autonomous views.</para><para>This "
+        "way you can see two locations at once and move items between them "
+        "quickly.</para>Click this again afterwards to recombine the views."));

     actionCollection()->setDefaultShortcut(split, Qt::Key_F3);
     connect(split, &QAction::triggered, this, &DolphinMainWindow::toggleSplitView);
 
     actionCollection()->setDefaultShortcut(split, Qt::Key_F3);
     connect(split, &QAction::triggered, this, &DolphinMainWindow::toggleSplitView);
 


@@ -1159,24 +1440,48 @@ void DolphinMainWindow::setupActions()
     QAction* stop = actionCollection()->addAction(QStringLiteral("stop"));
     stop->setText(i18nc("@action:inmenu View", "Stop"));
     stop->setToolTip(i18nc("@info", "Stop loading"));
     QAction* stop = actionCollection()->addAction(QStringLiteral("stop"));
     stop->setText(i18nc("@action:inmenu View", "Stop"));
     stop->setToolTip(i18nc("@info", "Stop loading"));

+    stop->setWhatsThis(i18nc("@info", "This stops the loading of the contents of the current folder."));

     stop->setIcon(QIcon::fromTheme(QStringLiteral("process-stop")));
     connect(stop, &QAction::triggered, this, &DolphinMainWindow::stopLoading);
 
     KToggleAction* editableLocation = actionCollection()->add<KToggleAction>(QStringLiteral("editable_location"));
     editableLocation->setText(i18nc("@action:inmenu Navigation Bar", "Editable Location"));
     stop->setIcon(QIcon::fromTheme(QStringLiteral("process-stop")));
     connect(stop, &QAction::triggered, this, &DolphinMainWindow::stopLoading);
 
     KToggleAction* editableLocation = actionCollection()->add<KToggleAction>(QStringLiteral("editable_location"));
     editableLocation->setText(i18nc("@action:inmenu Navigation Bar", "Editable Location"));

+    editableLocation->setWhatsThis(xi18nc("@info:whatsthis",
+        "This toggles the <emphasis>Location Bar</emphasis> to be "
+        "editable so you can directly enter a location you want to go to.<nl/>"
+        "You can also switch to editing by clicking to the right of the "
+        "location and switch back by confirming the edited location."));

     actionCollection()->setDefaultShortcut(editableLocation, Qt::Key_F6);
     connect(editableLocation, &KToggleAction::triggered, this, &DolphinMainWindow::toggleEditLocation);
 
     QAction* replaceLocation = actionCollection()->addAction(QStringLiteral("replace_location"));
     replaceLocation->setText(i18nc("@action:inmenu Navigation Bar", "Replace Location"));
     actionCollection()->setDefaultShortcut(editableLocation, Qt::Key_F6);
     connect(editableLocation, &KToggleAction::triggered, this, &DolphinMainWindow::toggleEditLocation);
 
     QAction* replaceLocation = actionCollection()->addAction(QStringLiteral("replace_location"));
     replaceLocation->setText(i18nc("@action:inmenu Navigation Bar", "Replace Location"));

+    // i18n: "enter" is used both in the meaning of "writing" and "going to" a new location here.
+    // Both meanings are useful but not necessary to understand the use of "Replace Location".
+    // So you might want to be more verbose in your language to convey the meaning but it's up to you.
+    replaceLocation->setWhatsThis(xi18nc("@info:whatsthis",
+        "This switches to editing the location and selects it "
+        "so you can quickly enter a different location."));

     actionCollection()->setDefaultShortcut(replaceLocation, Qt::CTRL + Qt::Key_L);
     connect(replaceLocation, &QAction::triggered, this, &DolphinMainWindow::replaceLocation);
 
     // setup 'Go' menu
     actionCollection()->setDefaultShortcut(replaceLocation, Qt::CTRL + Qt::Key_L);
     connect(replaceLocation, &QAction::triggered, this, &DolphinMainWindow::replaceLocation);
 
     // setup 'Go' menu

-    QAction* backAction = KStandardAction::back(this, &DolphinMainWindow::goBack, actionCollection());
-    auto backShortcuts = backAction->shortcuts();
+    {
+        QScopedPointer<QAction> backAction(KStandardAction::back(nullptr, nullptr, nullptr));
+        m_backAction = new KToolBarPopupAction(backAction->icon(), backAction->text(), actionCollection());
+        m_backAction->setObjectName(backAction->objectName());
+        m_backAction->setShortcuts(backAction->shortcuts());
+    }
+    m_backAction->setDelayed(true);
+    m_backAction->setStickyMenu(false);
+    connect(m_backAction, &QAction::triggered, this, &DolphinMainWindow::goBack);
+    connect(m_backAction->menu(), &QMenu::aboutToShow, this, &DolphinMainWindow::slotAboutToShowBackPopupMenu);
+    connect(m_backAction->menu(), &QMenu::triggered, this, &DolphinMainWindow::slotGoBack);
+    actionCollection()->addAction(m_backAction->objectName(), m_backAction);
+
+    auto backShortcuts = m_backAction->shortcuts();

     backShortcuts.append(QKeySequence(Qt::Key_Backspace));
     backShortcuts.append(QKeySequence(Qt::Key_Backspace));

-    actionCollection()->setDefaultShortcuts(backAction, backShortcuts);
+    actionCollection()->setDefaultShortcuts(m_backAction, backShortcuts);

 
     DolphinRecentTabsMenu* recentTabsMenu = new DolphinRecentTabsMenu(this);
     actionCollection()->addAction(QStringLiteral("closed_tabs"), recentTabsMenu);
 
     DolphinRecentTabsMenu* recentTabsMenu = new DolphinRecentTabsMenu(this);
     actionCollection()->addAction(QStringLiteral("closed_tabs"), recentTabsMenu);


@@ -1189,21 +1494,55 @@ void DolphinMainWindow::setupActions()
 
     QAction* undoCloseTab = actionCollection()->addAction(QStringLiteral("undo_close_tab"));
     undoCloseTab->setText(i18nc("@action:inmenu File", "Undo close tab"));
 
     QAction* undoCloseTab = actionCollection()->addAction(QStringLiteral("undo_close_tab"));
     undoCloseTab->setText(i18nc("@action:inmenu File", "Undo close tab"));

+    undoCloseTab->setWhatsThis(i18nc("@info:whatsthis undo close tab",
+        "This returns you to the previously closed tab."));

     actionCollection()->setDefaultShortcut(undoCloseTab, Qt::CTRL + Qt::SHIFT + Qt::Key_T);
     undoCloseTab->setIcon(QIcon::fromTheme(QStringLiteral("edit-undo")));
     undoCloseTab->setEnabled(false);
     connect(undoCloseTab, &QAction::triggered, recentTabsMenu, &DolphinRecentTabsMenu::undoCloseTab);
 
     auto undoAction = actionCollection()->action(KStandardAction::name(KStandardAction::Undo));
     actionCollection()->setDefaultShortcut(undoCloseTab, Qt::CTRL + Qt::SHIFT + Qt::Key_T);
     undoCloseTab->setIcon(QIcon::fromTheme(QStringLiteral("edit-undo")));
     undoCloseTab->setEnabled(false);
     connect(undoCloseTab, &QAction::triggered, recentTabsMenu, &DolphinRecentTabsMenu::undoCloseTab);
 
     auto undoAction = actionCollection()->action(KStandardAction::name(KStandardAction::Undo));

+    undoAction->setWhatsThis(xi18nc("@info:whatsthis", "This undoes "
+        "the last change you made to files or folders.<nl/>"
+        "Such changes include <interface>creating, renaming</interface> "
+        "and <interface>moving</interface> them to a different location "
+        "or to the <filename>Trash</filename>. <nl/>Changes that can't "
+        "be undone will ask for your confirmation."));

     undoAction->setEnabled(false); // undo should be disabled by default
 
     undoAction->setEnabled(false); // undo should be disabled by default
 

-    KStandardAction::forward(this, &DolphinMainWindow::goForward, actionCollection());
+    {
+        QScopedPointer<QAction> forwardAction(KStandardAction::forward(nullptr, nullptr, nullptr));
+        m_forwardAction = new KToolBarPopupAction(forwardAction->icon(), forwardAction->text(), actionCollection());
+        m_forwardAction->setObjectName(forwardAction->objectName());
+        m_forwardAction->setShortcuts(forwardAction->shortcuts());
+    }
+    m_forwardAction->setDelayed(true);
+    m_forwardAction->setStickyMenu(false);
+    connect(m_forwardAction, &QAction::triggered, this, &DolphinMainWindow::goForward);
+    connect(m_forwardAction->menu(), &QMenu::aboutToShow, this, &DolphinMainWindow::slotAboutToShowForwardPopupMenu);
+    connect(m_forwardAction->menu(), &QMenu::triggered, this, &DolphinMainWindow::slotGoForward);
+    actionCollection()->addAction(m_forwardAction->objectName(), m_forwardAction);
+    actionCollection()->setDefaultShortcuts(m_forwardAction, m_forwardAction->shortcuts());
+
+    // enable middle-click to open in a new tab
+    auto *middleClickEventFilter = new MiddleClickActionEventFilter(this);
+    connect(middleClickEventFilter, &MiddleClickActionEventFilter::actionMiddleClicked, this, &DolphinMainWindow::slotBackForwardActionMiddleClicked);
+    m_backAction->menu()->installEventFilter(middleClickEventFilter);
+    m_forwardAction->menu()->installEventFilter(middleClickEventFilter);

     KStandardAction::up(this, &DolphinMainWindow::goUp, actionCollection());
     KStandardAction::up(this, &DolphinMainWindow::goUp, actionCollection());

-    KStandardAction::home(this, &DolphinMainWindow::goHome, actionCollection());
+    QAction* homeAction = KStandardAction::home(this, &DolphinMainWindow::goHome, actionCollection());
+    homeAction->setWhatsThis(xi18nc("@info:whatsthis", "Go to your "
+        "<filename>Home</filename> folder.<nl/>Every user account "
+        "has their own <filename>Home</filename> that contains their data "
+        "including folders that contain personal application data."));

 
     // setup 'Tools' menu
     QAction* showFilterBar = actionCollection()->addAction(QStringLiteral("show_filter_bar"));
     showFilterBar->setText(i18nc("@action:inmenu Tools", "Show Filter Bar"));
 
     // setup 'Tools' menu
     QAction* showFilterBar = actionCollection()->addAction(QStringLiteral("show_filter_bar"));
     showFilterBar->setText(i18nc("@action:inmenu Tools", "Show Filter Bar"));

+    showFilterBar->setWhatsThis(xi18nc("@info:whatsthis", "This opens the "
+        "<emphasis>Filter Bar</emphasis> at the bottom of the window.<nl/> "
+        "There you can enter a text to filter the files and folders currently displayed. "
+        "Only those that contain the text in their name will be kept in view."));

     showFilterBar->setIcon(QIcon::fromTheme(QStringLiteral("view-filter")));
     actionCollection()->setDefaultShortcuts(showFilterBar, {Qt::CTRL + Qt::Key_I, Qt::Key_Slash});
     connect(showFilterBar, &QAction::triggered, this, &DolphinMainWindow::showFilterBar);
     showFilterBar->setIcon(QIcon::fromTheme(QStringLiteral("view-filter")));
     actionCollection()->setDefaultShortcuts(showFilterBar, {Qt::CTRL + Qt::Key_I, Qt::Key_Slash});
     connect(showFilterBar, &QAction::triggered, this, &DolphinMainWindow::showFilterBar);


@@ -1214,22 +1553,59 @@ void DolphinMainWindow::setupActions()
     compareFiles->setEnabled(false);
     connect(compareFiles, &QAction::triggered, this, &DolphinMainWindow::compareFiles);
 
     compareFiles->setEnabled(false);
     connect(compareFiles, &QAction::triggered, this, &DolphinMainWindow::compareFiles);
 

+    QAction* openPreferredSearchTool = actionCollection()->addAction(QStringLiteral("open_preferred_search_tool"));
+    openPreferredSearchTool->setText(i18nc("@action:inmenu Tools", "Open Preferred Search Tool"));
+    openPreferredSearchTool->setWhatsThis(xi18nc("@info:whatsthis",
+        "<para>This opens a preferred search tool for the viewed location.</para>"
+        "<para>Use <emphasis>More Search Tools</emphasis> menu to configure it.</para>"));
+    openPreferredSearchTool->setIcon(QIcon::fromTheme(QStringLiteral("search")));
+    actionCollection()->setDefaultShortcut(openPreferredSearchTool, Qt::CTRL + Qt::SHIFT + Qt::Key_F);
+    connect(openPreferredSearchTool, &QAction::triggered, this, &DolphinMainWindow::openPreferredSearchTool);
+

 #ifdef HAVE_TERMINAL
     if (KAuthorized::authorize(QStringLiteral("shell_access"))) {
         QAction* openTerminal = actionCollection()->addAction(QStringLiteral("open_terminal"));
         openTerminal->setText(i18nc("@action:inmenu Tools", "Open Terminal"));
 #ifdef HAVE_TERMINAL
     if (KAuthorized::authorize(QStringLiteral("shell_access"))) {
         QAction* openTerminal = actionCollection()->addAction(QStringLiteral("open_terminal"));
         openTerminal->setText(i18nc("@action:inmenu Tools", "Open Terminal"));

-        openTerminal->setIcon(QIcon::fromTheme(QStringLiteral("utilities-terminal")));
+        openTerminal->setWhatsThis(xi18nc("@info:whatsthis",
+            "<para>This opens a <emphasis>terminal</emphasis> application for the viewed location.</para>"
+            "<para>To learn more about terminals use the help in the terminal application.</para>"));
+        openTerminal->setIcon(QIcon::fromTheme(QStringLiteral("dialog-scripts")));

         actionCollection()->setDefaultShortcut(openTerminal, Qt::SHIFT + Qt::Key_F4);
         connect(openTerminal, &QAction::triggered, this, &DolphinMainWindow::openTerminal);
         actionCollection()->setDefaultShortcut(openTerminal, Qt::SHIFT + Qt::Key_F4);
         connect(openTerminal, &QAction::triggered, this, &DolphinMainWindow::openTerminal);

+
+        QAction* focusTerminalPanel = actionCollection()->addAction(QStringLiteral("focus_terminal_panel"));
+        focusTerminalPanel->setText(i18nc("@action:inmenu Tools", "Focus Terminal Panel"));
+        focusTerminalPanel->setIcon(QIcon::fromTheme(QStringLiteral("swap-panels")));
+        actionCollection()->setDefaultShortcut(focusTerminalPanel, Qt::CTRL + Qt::SHIFT + Qt::Key_F4);
+        connect(focusTerminalPanel, &QAction::triggered, this, &DolphinMainWindow::focusTerminalPanel);

     }
 #endif
 
     }
 #endif
 

+    // setup 'Bookmarks' menu
+    KActionMenu *bookmarkMenu = new KActionMenu(i18nc("@title:menu", "&Bookmarks"), this);
+    bookmarkMenu->setIcon(QIcon::fromTheme(QStringLiteral("bookmarks")));
+    // Make the toolbar button version work properly on click
+    bookmarkMenu->setDelayed(false);
+    m_bookmarkHandler = new DolphinBookmarkHandler(this, actionCollection(), bookmarkMenu->menu(), this);
+    actionCollection()->addAction(QStringLiteral("bookmarks"), bookmarkMenu);
+

     // setup 'Settings' menu
     KToggleAction* showMenuBar = KStandardAction::showMenubar(nullptr, nullptr, actionCollection());
     // setup 'Settings' menu
     KToggleAction* showMenuBar = KStandardAction::showMenubar(nullptr, nullptr, actionCollection());

+    showMenuBar->setWhatsThis(xi18nc("@info:whatsthis",
+            "This switches between having a <emphasis>Menubar</emphasis> "
+            "and having a <interface>Control</interface> button. Both "
+            "contain mostly the same commands and configuration options."));

     connect(showMenuBar, &KToggleAction::triggered,                   // Fixes #286822
             this, &DolphinMainWindow::toggleShowMenuBar, Qt::QueuedConnection);
     KStandardAction::preferences(this, &DolphinMainWindow::editSettings, actionCollection());
 
     connect(showMenuBar, &KToggleAction::triggered,                   // Fixes #286822
             this, &DolphinMainWindow::toggleShowMenuBar, Qt::QueuedConnection);
     KStandardAction::preferences(this, &DolphinMainWindow::editSettings, actionCollection());
 

+    // setup 'Help' menu for the m_controlButton. The other one is set up in the base class.
+    m_helpMenu = new KHelpMenu(nullptr);
+    m_helpMenu->menu()->installEventFilter(this);
+    // remove duplicate shortcuts
+    m_helpMenu->action(KHelpMenu::menuHelpContents)->setShortcut(QKeySequence());
+    m_helpMenu->action(KHelpMenu::menuWhatsThis)->setShortcut(QKeySequence());
+

     // not in menu actions
     QList<QKeySequence> nextTabKeys = KStandardShortcut::tabNext();
     nextTabKeys.append(QKeySequence(Qt::CTRL + Qt::Key_Tab));
     // not in menu actions
     QList<QKeySequence> nextTabKeys = KStandardShortcut::tabNext();
     nextTabKeys.append(QKeySequence(Qt::CTRL + Qt::Key_Tab));


@@ -1237,6 +1613,24 @@ void DolphinMainWindow::setupActions()
     QList<QKeySequence> prevTabKeys = KStandardShortcut::tabPrev();
     prevTabKeys.append(QKeySequence(Qt::CTRL + Qt::SHIFT + Qt::Key_Tab));
 
     QList<QKeySequence> prevTabKeys = KStandardShortcut::tabPrev();
     prevTabKeys.append(QKeySequence(Qt::CTRL + Qt::SHIFT + Qt::Key_Tab));
 

+    for (int i = 0; i < MaxActivateTabShortcuts; ++i) {
+        QAction* activateTab = actionCollection()->addAction(QStringLiteral("activate_tab_%1").arg(i));
+        activateTab->setText(i18nc("@action:inmenu", "Activate Tab %1", i + 1));
+        activateTab->setEnabled(false);
+        connect(activateTab, &QAction::triggered, this, [this, i]() { m_tabWidget->activateTab(i); });
+
+        // only add default shortcuts for the first 9 tabs regardless of MaxActivateTabShortcuts
+        if (i < 9) {
+            actionCollection()->setDefaultShortcut(activateTab, QStringLiteral("Alt+%1").arg(i + 1));
+        }
+    }
+
+    QAction* activateLastTab = actionCollection()->addAction(QStringLiteral("activate_last_tab"));
+    activateLastTab->setText(i18nc("@action:inmenu", "Activate Last Tab"));
+    activateLastTab->setEnabled(false);
+    connect(activateLastTab, &QAction::triggered, m_tabWidget, &DolphinTabWidget::activateLastTab);
+    actionCollection()->setDefaultShortcut(activateLastTab, Qt::ALT + Qt::Key_0);
+

     QAction* activateNextTab = actionCollection()->addAction(QStringLiteral("activate_next_tab"));
     activateNextTab->setIconText(i18nc("@action:inmenu", "Next Tab"));
     activateNextTab->setText(i18nc("@action:inmenu", "Activate Next Tab"));
     QAction* activateNextTab = actionCollection()->addAction(QStringLiteral("activate_next_tab"));
     activateNextTab->setIconText(i18nc("@action:inmenu", "Next Tab"));
     activateNextTab->setText(i18nc("@action:inmenu", "Activate Next Tab"));


@@ -1283,6 +1677,11 @@ void DolphinMainWindow::setupDockWidgets()
     lockLayoutAction->setActiveIcon(QIcon::fromTheme(QStringLiteral("object-unlocked")));
     lockLayoutAction->setInactiveText(i18nc("@action:inmenu Panels", "Lock Panels"));
     lockLayoutAction->setInactiveIcon(QIcon::fromTheme(QStringLiteral("object-locked")));
     lockLayoutAction->setActiveIcon(QIcon::fromTheme(QStringLiteral("object-unlocked")));
     lockLayoutAction->setInactiveText(i18nc("@action:inmenu Panels", "Lock Panels"));
     lockLayoutAction->setInactiveIcon(QIcon::fromTheme(QStringLiteral("object-locked")));

+    lockLayoutAction->setWhatsThis(xi18nc("@info:whatsthis", "This "
+        "switches between having panels <emphasis>locked</emphasis> or "
+        "<emphasis>unlocked</emphasis>.<nl/>Unlocked panels can be "
+        "dragged to the other side of the window and have a close "
+        "button.<nl/>Locked panels are embedded more cleanly."));

     lockLayoutAction->setActive(lock);
     connect(lockLayoutAction, &KDualAction::triggered, this, &DolphinMainWindow::togglePanelLockState);
 
     lockLayoutAction->setActive(lock);
     connect(lockLayoutAction, &KDualAction::triggered, this, &DolphinMainWindow::togglePanelLockState);
 


@@ -1310,6 +1709,26 @@ void DolphinMainWindow::setupDockWidgets()
             infoPanel, &InformationPanel::requestDelayedItemInfo);
 #endif
 
             infoPanel, &InformationPanel::requestDelayedItemInfo);
 #endif
 

+    // i18n: This is the last paragraph for the "What's This"-texts of all four panels.
+    const QString panelWhatsThis = xi18nc("@info:whatsthis", "<para>To show or "
+        "hide panels like this go to <interface>Control|Panels</interface> "
+        "or <interface>View|Panels</interface>.</para>");
+#ifdef HAVE_BALOO
+    actionCollection()->action(QStringLiteral("show_information_panel"))
+        ->setWhatsThis(xi18nc("@info:whatsthis", "<para> This toggles the "
+        "<emphasis>information</emphasis> panel at the right side of the "
+        "window.</para><para>The panel provides in-depth information "
+        "about the items your mouse is hovering over or about the selected "
+        "items. Otherwise it informs you about the currently viewed folder.<nl/>"
+        "For single items a preview of their contents is provided.</para>"));
+#endif
+    infoDock->setWhatsThis(xi18nc("@info:whatsthis", "<para>This panel "
+        "provides in-depth information about the items your mouse is "
+        "hovering over or about the selected items. Otherwise it informs "
+        "you about the currently viewed folder.<nl/>For single items a "
+        "preview of their contents is provided.</para><para>You can configure "
+        "which and how details are given here by right-clicking.</para>") + panelWhatsThis);
+

     // Setup "Folders"
     DolphinDockWidget* foldersDock = new DolphinDockWidget(i18nc("@title:window", "Folders"));
     foldersDock->setLocked(lock);
     // Setup "Folders"
     DolphinDockWidget* foldersDock = new DolphinDockWidget(i18nc("@title:window", "Folders"));
     foldersDock->setLocked(lock);


@@ -1328,10 +1747,21 @@ void DolphinMainWindow::setupDockWidgets()
     connect(foldersPanel, &FoldersPanel::folderActivated,
             this, &DolphinMainWindow::changeUrl);
     connect(foldersPanel, &FoldersPanel::folderMiddleClicked,
     connect(foldersPanel, &FoldersPanel::folderActivated,
             this, &DolphinMainWindow::changeUrl);
     connect(foldersPanel, &FoldersPanel::folderMiddleClicked,

-            this, &DolphinMainWindow::openNewTab);
+            this, &DolphinMainWindow::openNewTabAfterCurrentTab);

     connect(foldersPanel, &FoldersPanel::errorMessage,
             this, &DolphinMainWindow::showErrorMessage);
 
     connect(foldersPanel, &FoldersPanel::errorMessage,
             this, &DolphinMainWindow::showErrorMessage);
 

+    actionCollection()->action(QStringLiteral("show_folders_panel"))
+        ->setWhatsThis(xi18nc("@info:whatsthis", "This toggles the "
+        "<emphasis>folders</emphasis> panel at the left side of the window."
+        "<nl/><nl/>It shows the folders of the <emphasis>file system"
+        "</emphasis> in a <emphasis>tree view</emphasis>."));
+    foldersDock->setWhatsThis(xi18nc("@info:whatsthis", "<para>This panel "
+        "shows the folders of the <emphasis>file system</emphasis> in a "
+        "<emphasis>tree view</emphasis>.</para><para>Click a folder to go "
+        "there. Click the arrow to the left of a folder to see its subfolders. "
+        "This allows quick switching between any folders.</para>") + panelWhatsThis);
+

     // Setup "Terminal"
 #ifdef HAVE_TERMINAL
     if (KAuthorized::authorize(QStringLiteral("shell_access"))) {
     // Setup "Terminal"
 #ifdef HAVE_TERMINAL
     if (KAuthorized::authorize(QStringLiteral("shell_access"))) {


@@ -1350,7 +1780,7 @@ void DolphinMainWindow::setupDockWidgets()
                 this, &DolphinMainWindow::slotTerminalPanelVisibilityChanged);
 
         QAction* terminalAction = terminalDock->toggleViewAction();
                 this, &DolphinMainWindow::slotTerminalPanelVisibilityChanged);
 
         QAction* terminalAction = terminalDock->toggleViewAction();

-        createPanelAction(QIcon::fromTheme(QStringLiteral("utilities-terminal")), Qt::Key_F4, terminalAction, QStringLiteral("show_terminal_panel"));
+        createPanelAction(QIcon::fromTheme(QStringLiteral("dialog-scripts")), Qt::Key_F4, terminalAction, QStringLiteral("show_terminal_panel"));

 
         addDockWidget(Qt::BottomDockWidgetArea, terminalDock);
         connect(this, &DolphinMainWindow::urlChanged,
 
         addDockWidget(Qt::BottomDockWidgetArea, terminalDock);
         connect(this, &DolphinMainWindow::urlChanged,


@@ -1359,6 +1789,22 @@ void DolphinMainWindow::setupDockWidgets()
         if (GeneralSettings::version() < 200) {
             terminalDock->hide();
         }
         if (GeneralSettings::version() < 200) {
             terminalDock->hide();
         }

+
+        actionCollection()->action(QStringLiteral("show_terminal_panel"))
+            ->setWhatsThis(xi18nc("@info:whatsthis", "<para>This toggles the "
+            "<emphasis>terminal</emphasis> panel at the bottom of the window."
+            "<nl/>The location in the terminal will always match the folder "
+            "view so you can navigate using either.</para><para>The terminal "
+            "panel is not needed for basic computer usage but can be useful "
+            "for advanced tasks. To learn more about terminals use the help "
+            "in a standalone terminal application like Konsole.</para>"));
+        terminalDock->setWhatsThis(xi18nc("@info:whatsthis", "<para>This is "
+            "the <emphasis>terminal</emphasis> panel. It behaves like a "
+            "normal terminal but will match the location of the folder view "
+            "so you can navigate using either.</para><para>The terminal panel "
+            "is not needed for basic computer usage but can be useful for "
+            "advanced tasks. To learn more about terminals use the help in a "
+            "standalone terminal application like Konsole.</para>") + panelWhatsThis);

     }
 #endif
 
     }
 #endif
 


@@ -1384,7 +1830,7 @@ void DolphinMainWindow::setupDockWidgets()
     connect(m_placesPanel, &PlacesPanel::placeActivated,
             this, &DolphinMainWindow::slotPlaceActivated);
     connect(m_placesPanel, &PlacesPanel::placeMiddleClicked,
     connect(m_placesPanel, &PlacesPanel::placeActivated,
             this, &DolphinMainWindow::slotPlaceActivated);
     connect(m_placesPanel, &PlacesPanel::placeMiddleClicked,

-            this, &DolphinMainWindow::openNewTab);
+            this, &DolphinMainWindow::openNewTabAfterCurrentTab);

     connect(m_placesPanel, &PlacesPanel::errorMessage,
             this, &DolphinMainWindow::showErrorMessage);
     connect(this, &DolphinMainWindow::urlChanged,
     connect(m_placesPanel, &PlacesPanel::errorMessage,
             this, &DolphinMainWindow::showErrorMessage);
     connect(this, &DolphinMainWindow::urlChanged,


@@ -1399,23 +1845,46 @@ void DolphinMainWindow::setupDockWidgets()
             this, &DolphinMainWindow::slotStorageTearDownExternallyRequested);
     m_tabWidget->slotPlacesPanelVisibilityChanged(m_placesPanel->isVisible());
 
             this, &DolphinMainWindow::slotStorageTearDownExternallyRequested);
     m_tabWidget->slotPlacesPanelVisibilityChanged(m_placesPanel->isVisible());
 

-    auto actionShowAllPlaces = new QAction(QIcon::fromTheme(QStringLiteral("hint")), i18nc("@item:inmenu", "Show Hidden Places"), this);
+    auto actionShowAllPlaces = new QAction(QIcon::fromTheme(QStringLiteral("view-hidden")), i18nc("@item:inmenu", "Show Hidden Places"), this);

     actionShowAllPlaces->setCheckable(true);
     actionShowAllPlaces->setDisabled(true);
     actionShowAllPlaces->setCheckable(true);
     actionShowAllPlaces->setDisabled(true);

+    actionShowAllPlaces->setWhatsThis(i18nc("@info:whatsthis", "This displays "
+        "all places in the places panel that have been hidden. They will "
+        "appear semi-transparent unless you uncheck their hide property."));

 
     connect(actionShowAllPlaces, &QAction::triggered, this, [actionShowAllPlaces, this](bool checked){
 
     connect(actionShowAllPlaces, &QAction::triggered, this, [actionShowAllPlaces, this](bool checked){

-        actionShowAllPlaces->setIcon(QIcon::fromTheme(checked ? QStringLiteral("visibility") : QStringLiteral("hint")));
+        actionShowAllPlaces->setIcon(QIcon::fromTheme(checked ? QStringLiteral("view-visible") : QStringLiteral("view-hidden")));

         m_placesPanel->showHiddenEntries(checked);
     });
 
     connect(m_placesPanel, &PlacesPanel::showHiddenEntriesChanged, this, [actionShowAllPlaces] (bool checked){
         actionShowAllPlaces->setChecked(checked);
         m_placesPanel->showHiddenEntries(checked);
     });
 
     connect(m_placesPanel, &PlacesPanel::showHiddenEntriesChanged, this, [actionShowAllPlaces] (bool checked){
         actionShowAllPlaces->setChecked(checked);

-        actionShowAllPlaces->setIcon(QIcon::fromTheme(checked ? QStringLiteral("visibility") : QStringLiteral("hint")));
+        actionShowAllPlaces->setIcon(QIcon::fromTheme(checked ? QStringLiteral("view-visible") : QStringLiteral("view-hidden")));

    });
 
    });
 

+    actionCollection()->action(QStringLiteral("show_places_panel"))
+        ->setWhatsThis(xi18nc("@info:whatsthis", "<para>This toggles the "
+        "<emphasis>places</emphasis> panel at the left side of the window."
+        "</para><para>It allows you to go to locations you have "
+        "bookmarked and to access disk or media attached to the computer "
+        "or to the network. It also contains sections to find recently "
+        "saved files or files of a certain type.</para>"));
+    placesDock->setWhatsThis(xi18nc("@info:whatsthis", "<para>This is the "
+        "<emphasis>Places</emphasis> panel. It allows you to go to locations "
+        "you have bookmarked and to access disk or media attached to the "
+        "computer or to the network. It also contains sections to find "
+        "recently saved files or files of a certain type.</para><para>"
+        "Click on an entry to go there. Click with the right mouse button "
+        "instead to open any entry in a new tab or new window.</para>"
+        "<para>New entries can be added by dragging folders onto this panel. "
+        "Right-click any section or entry to hide it. Right-click an empty "
+        "space on this panel and select <interface>Show Hidden Places"
+        "</interface> to display it again.</para>") + panelWhatsThis);
+

     // Add actions into the "Panels" menu
     // Add actions into the "Panels" menu

-    KActionMenu* panelsMenu = new KActionMenu(i18nc("@action:inmenu View", "Panels"), this);
+    KActionMenu* panelsMenu = new KActionMenu(i18nc("@action:inmenu View", "Show Panels"), this);

     actionCollection()->addAction(QStringLiteral("panels"), panelsMenu);
     actionCollection()->addAction(QStringLiteral("panels"), panelsMenu);

+    panelsMenu->setIcon(QIcon::fromTheme(QStringLiteral("view-sidetree")));

     panelsMenu->setDelayed(false);
     const KActionCollection* ac = actionCollection();
     panelsMenu->addAction(ac->action(QStringLiteral("show_places_panel")));
     panelsMenu->setDelayed(false);
     const KActionCollection* ac = actionCollection();
     panelsMenu->addAction(ac->action(QStringLiteral("show_places_panel")));


@@ -1433,21 +1902,33 @@ void DolphinMainWindow::setupDockWidgets()
     });
 }
 
     });
 }
 

-void DolphinMainWindow::updateEditActions()
+
+void DolphinMainWindow::updateFileAndEditActions()

 {
     const KFileItemList list = m_activeViewContainer->view()->selectedItems();
 {
     const KFileItemList list = m_activeViewContainer->view()->selectedItems();

+    const KActionCollection* col = actionCollection();
+    QAction* addToPlacesAction = col->action(QStringLiteral("add_to_places"));
+

     if (list.isEmpty()) {
         stateChanged(QStringLiteral("has_no_selection"));
     if (list.isEmpty()) {
         stateChanged(QStringLiteral("has_no_selection"));

+
+        addToPlacesAction->setEnabled(true);

     } else {
         stateChanged(QStringLiteral("has_selection"));
 
     } else {
         stateChanged(QStringLiteral("has_selection"));
 

-        KActionCollection* col = actionCollection();

         QAction* renameAction            = col->action(KStandardAction::name(KStandardAction::RenameFile));
         QAction* moveToTrashAction       = col->action(KStandardAction::name(KStandardAction::MoveToTrash));
         QAction* deleteAction            = col->action(KStandardAction::name(KStandardAction::DeleteFile));
         QAction* cutAction               = col->action(KStandardAction::name(KStandardAction::Cut));
         QAction* deleteWithTrashShortcut = col->action(QStringLiteral("delete_shortcut")); // see DolphinViewActionHandler
         QAction* showTarget              = col->action(QStringLiteral("show_target"));
         QAction* renameAction            = col->action(KStandardAction::name(KStandardAction::RenameFile));
         QAction* moveToTrashAction       = col->action(KStandardAction::name(KStandardAction::MoveToTrash));
         QAction* deleteAction            = col->action(KStandardAction::name(KStandardAction::DeleteFile));
         QAction* cutAction               = col->action(KStandardAction::name(KStandardAction::Cut));
         QAction* deleteWithTrashShortcut = col->action(QStringLiteral("delete_shortcut")); // see DolphinViewActionHandler
         QAction* showTarget              = col->action(QStringLiteral("show_target"));

+        QAction* duplicateAction         = col->action(QStringLiteral("duplicate")); // see DolphinViewActionHandler
+
+        if (list.length() == 1 && list.first().isDir()) {
+            addToPlacesAction->setEnabled(true);
+        } else {
+            addToPlacesAction->setEnabled(false);
+        }

 
         KFileItemListProperties capabilities(list);
         const bool enableMoveToTrash = capabilities.isLocal() && capabilities.supportsMoving();
 
         KFileItemListProperties capabilities(list);
         const bool enableMoveToTrash = capabilities.isLocal() && capabilities.supportsMoving();


@@ -1458,6 +1939,7 @@ void DolphinMainWindow::updateEditActions()
         deleteWithTrashShortcut->setEnabled(capabilities.supportsDeleting() && !enableMoveToTrash);
         cutAction->setEnabled(capabilities.supportsMoving());
         showTarget->setEnabled(list.length() == 1 && list.at(0).isLink());
         deleteWithTrashShortcut->setEnabled(capabilities.supportsDeleting() && !enableMoveToTrash);
         cutAction->setEnabled(capabilities.supportsMoving());
         showTarget->setEnabled(list.length() == 1 && list.at(0).isLink());

+        duplicateAction->setEnabled(capabilities.supportsWriting());

     }
 }
 
     }
 }
 


@@ -1479,6 +1961,16 @@ void DolphinMainWindow::updateGoActions()
 {
     QAction* goUpAction = actionCollection()->action(KStandardAction::name(KStandardAction::Up));
     const QUrl currentUrl = m_activeViewContainer->url();
 {
     QAction* goUpAction = actionCollection()->action(KStandardAction::name(KStandardAction::Up));
     const QUrl currentUrl = m_activeViewContainer->url();

+    // I think this is one of the best places to firstly be confronted
+    // with a file system and its hierarchy. Talking about the root
+    // directory might seem too much here but it is the question that
+    // naturally arises in this context.
+    goUpAction->setWhatsThis(xi18nc("@info:whatsthis", "<para>Go to "
+        "the folder that contains the currently viewed one.</para>"
+        "<para>All files and folders are organized in a hierarchical "
+        "<emphasis>file system</emphasis>. At the top of this hierarchy is "
+        "a directory that contains all data connected to this computer"
+        "—the <emphasis>root directory</emphasis>.</para>"));

     goUpAction->setEnabled(KIO::upUrl(currentUrl) != currentUrl);
 }
 
     goUpAction->setEnabled(KIO::upUrl(currentUrl) != currentUrl);
 }
 


@@ -1490,21 +1982,21 @@ void DolphinMainWindow::createControlButton()
     Q_ASSERT(!m_controlButton);
 
     m_controlButton = new QToolButton(this);
     Q_ASSERT(!m_controlButton);
 
     m_controlButton = new QToolButton(this);

+    m_controlButton->setAccessibleName(i18nc("@action:intoolbar", "Control"));

     m_controlButton->setIcon(QIcon::fromTheme(QStringLiteral("application-menu")));
     m_controlButton->setIcon(QIcon::fromTheme(QStringLiteral("application-menu")));

-    m_controlButton->setText(i18nc("@action", "Control"));
+    m_controlButton->setToolTip(i18nc("@action", "Show menu"));
+    m_controlButton->setAttribute(Qt::WidgetAttribute::WA_CustomWhatsThis);

     m_controlButton->setPopupMode(QToolButton::InstantPopup);
     m_controlButton->setPopupMode(QToolButton::InstantPopup);

-    m_controlButton->setToolButtonStyle(toolBar()->toolButtonStyle());

 
     QMenu* controlMenu = new QMenu(m_controlButton);
     connect(controlMenu, &QMenu::aboutToShow, this, &DolphinMainWindow::updateControlMenu);
 
     QMenu* controlMenu = new QMenu(m_controlButton);
     connect(controlMenu, &QMenu::aboutToShow, this, &DolphinMainWindow::updateControlMenu);

+    controlMenu->installEventFilter(this);

 
     m_controlButton->setMenu(controlMenu);
 
     toolBar()->addWidget(m_controlButton);
     connect(toolBar(), &KToolBar::iconSizeChanged,
             m_controlButton, &QToolButton::setIconSize);
 
     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
 
     // 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


@@ -1567,6 +2059,11 @@ void DolphinMainWindow::connectViewSignals(DolphinViewContainer* container)
             this, &DolphinMainWindow::updateFilterBarAction);
     connect(container, &DolphinViewContainer::writeStateChanged,
             this, &DolphinMainWindow::slotWriteStateChanged);
             this, &DolphinMainWindow::updateFilterBarAction);
     connect(container, &DolphinViewContainer::writeStateChanged,
             this, &DolphinMainWindow::slotWriteStateChanged);

+    connect(container, &DolphinViewContainer::searchModeEnabledChanged,
+            this, &DolphinMainWindow::updateSearchAction);
+
+    const QAction* toggleSearchAction = actionCollection()->action(QStringLiteral("toggle_search"));
+    connect(toggleSearchAction, &QAction::triggered, container, &DolphinViewContainer::setSearchModeEnabled);

 
     const DolphinView* view = container->view();
     connect(view, &DolphinView::selectionChanged,
 
     const DolphinView* view = container->view();
     connect(view, &DolphinView::selectionChanged,


@@ -1584,9 +2081,9 @@ void DolphinMainWindow::connectViewSignals(DolphinViewContainer* container)
     connect(view, &DolphinView::directoryLoadingCompleted,
             this, &DolphinMainWindow::slotDirectoryLoadingCompleted);
     connect(view, &DolphinView::goBackRequested,
     connect(view, &DolphinView::directoryLoadingCompleted,
             this, &DolphinMainWindow::slotDirectoryLoadingCompleted);
     connect(view, &DolphinView::goBackRequested,

-            this, static_cast<void(DolphinMainWindow::*)()>(&DolphinMainWindow::goBack));
+            this, &DolphinMainWindow::goBack);

     connect(view, &DolphinView::goForwardRequested,
     connect(view, &DolphinView::goForwardRequested,

-            this, static_cast<void(DolphinMainWindow::*)()>(&DolphinMainWindow::goForward));
+            this, &DolphinMainWindow::goForward);

     connect(view, &DolphinView::urlActivated,
             this, &DolphinMainWindow::handleUrl);
 
     connect(view, &DolphinView::urlActivated,
             this, &DolphinMainWindow::handleUrl);
 


@@ -1598,7 +2095,7 @@ void DolphinMainWindow::connectViewSignals(DolphinViewContainer* container)
     connect(navigator, &KUrlNavigator::editableStateChanged,
             this, &DolphinMainWindow::slotEditableStateChanged);
     connect(navigator, &KUrlNavigator::tabRequested,
     connect(navigator, &KUrlNavigator::editableStateChanged,
             this, &DolphinMainWindow::slotEditableStateChanged);
     connect(navigator, &KUrlNavigator::tabRequested,

-            this, &DolphinMainWindow::openNewTab);
+            this, &DolphinMainWindow::openNewTabAfterLastTab);

 }
 
 void DolphinMainWindow::updateSplitAction()
 }
 
 void DolphinMainWindow::updateSplitAction()


@@ -1606,7 +2103,7 @@ void DolphinMainWindow::updateSplitAction()
     QAction* splitAction = actionCollection()->action(QStringLiteral("split_view"));
     const DolphinTabPage* tabPage = m_tabWidget->currentTabPage();
     if (tabPage->splitViewEnabled()) {
     QAction* splitAction = actionCollection()->action(QStringLiteral("split_view"));
     const DolphinTabPage* tabPage = m_tabWidget->currentTabPage();
     if (tabPage->splitViewEnabled()) {

-        if (tabPage->primaryViewActive()) {
+        if (GeneralSettings::closeActiveSplitView() ? tabPage->primaryViewActive() : !tabPage->primaryViewActive()) {

             splitAction->setText(i18nc("@action:intoolbar Close left view", "Close"));
             splitAction->setToolTip(i18nc("@info", "Close left view"));
             splitAction->setIcon(QIcon::fromTheme(QStringLiteral("view-left-close")));
             splitAction->setText(i18nc("@action:intoolbar Close left view", "Close"));
             splitAction->setToolTip(i18nc("@info", "Close left view"));
             splitAction->setIcon(QIcon::fromTheme(QStringLiteral("view-left-close")));


@@ -1651,6 +2148,202 @@ void DolphinMainWindow::createPanelAction(const QIcon& icon,
     connect(dockAction, &QAction::toggled, panelAction, &QAction::setChecked);
 }
 
     connect(dockAction, &QAction::toggled, panelAction, &QAction::setChecked);
 }
 

+void DolphinMainWindow::setupWhatsThis()
+{
+    // main widgets
+    menuBar()->setWhatsThis(xi18nc("@info:whatsthis", "<para>This is the "
+        "<emphasis>Menubar</emphasis>. It provides access to commands and "
+        "configuration options. Left-click on any of the menus on this "
+        "bar to see its contents.</para><para>The Menubar can be hidden "
+        "by unchecking <interface>Settings|Show Menubar</interface>. Then "
+        "most of its contents become available through a <interface>Control"
+        "</interface> button on the <emphasis>Toolbar</emphasis>.</para>"));
+    toolBar()->setWhatsThis(xi18nc("@info:whatsthis", "<para>This is the "
+        "<emphasis>Toolbar</emphasis>. It allows quick access to "
+        "frequently used actions.</para><para>It is highly customizable. "
+        "All items you see in the <interface>Control</interface> menu or "
+        "in the <interface>Menubar</interface> can be placed on the "
+        "Toolbar. Just right-click on it and select <interface>Configure "
+        "Toolbars…</interface> or find this action in the <interface>"
+        "Control</interface> or <interface>Settings</interface> menu."
+        "</para><para>The location of the bar and the style of its "
+        "buttons can also be changed in the right-click menu. Right-click "
+        "a button if you want to show or hide its text.</para>"));
+    m_tabWidget->setWhatsThis(xi18nc("@info:whatsthis main view",
+        "<para>Here you can see the <emphasis>folders</emphasis> and "
+        "<emphasis>files</emphasis> that are at the location described in "
+        "the <interface>Location Bar</interface> above. This area is the "
+        "central part of this application where you navigate to the files "
+        "you want to use.</para><para>For an elaborate and general "
+        "introduction to this application <link "
+        "url='https://userbase.kde.org/Dolphin/File_Management#Introduction_to_Dolphin'>"
+        "click here</link>. This will open an introductory article from "
+        "the <emphasis>KDE UserBase Wiki</emphasis>.</para><para>For brief "
+        "explanations of all the features of this <emphasis>view</emphasis> "
+        "<link url='help:/dolphin/dolphin-view.html'>click here</link> "
+        "instead. This will open a page from the <emphasis>Handbook"
+        "</emphasis> that covers the basics.</para>"));
+
+    // Settings menu
+    actionCollection()->action(KStandardAction::name(KStandardAction::KeyBindings))
+        ->setWhatsThis(xi18nc("@info:whatsthis","<para>This opens a window "
+        "that lists the <emphasis>keyboard shortcuts</emphasis>.<nl/>"
+        "There you can set up key combinations to trigger an action when "
+        "they are pressed simultaneously. All commands in this application can "
+        "be triggered this way.</para>"));
+    actionCollection()->action(KStandardAction::name(KStandardAction::ConfigureToolbars))
+        ->setWhatsThis(xi18nc("@info:whatsthis","<para>This opens a window in which "
+        "you can change which buttons appear on the <emphasis>Toolbar</emphasis>.</para>"
+        "<para>All items you see in the <interface>Control</interface> menu "
+        "or in the <interface>Menubar</interface> can also be placed on the Toolbar.</para>"));
+    actionCollection()->action(KStandardAction::name(KStandardAction::Preferences))
+        ->setWhatsThis(xi18nc("@info:whatsthis","This opens a window where you can "
+        "change a multitude of settings for this application. For an explanation "
+        "of the various settings go to the chapter <emphasis>Configuring Dolphin"
+        "</emphasis> in <interface>Help|Dolphin Handbook</interface>."));
+
+    // Help menu
+    // The whatsthis has to be set for the m_helpMenu and for the
+    // StandardAction separately because both are used in different locations.
+    // m_helpMenu is only used for createControlButton() button.
+
+    // Links do not work within the Menubar so texts without links are provided there.
+
+    // i18n: If the external link isn't available in your language you should
+    // probably state the external link language at least in brackets to not
+    // frustrate the user. If there are multiple languages that the user might
+    // know with a reasonable chance you might want to have 2 external links.
+    // The same is in my opinion true for every external link you translate.
+    const QString whatsThisHelpContents = xi18nc("@info:whatsthis handbook",
+        "<para>This opens the Handbook for this application. It provides "
+        "explanations for every part of <emphasis>Dolphin</emphasis>.</para>");
+    actionCollection()->action(KStandardAction::name(KStandardAction::HelpContents))
+        ->setWhatsThis(whatsThisHelpContents
+        + xi18nc("@info:whatsthis second half of handbook hb text without link",
+        "<para>If you want more elaborate introductions to the "
+        "different features of <emphasis>Dolphin</emphasis> "
+        "go to the KDE UserBase Wiki.</para>"));
+    m_helpMenu->action(KHelpMenu::menuHelpContents)->setWhatsThis(whatsThisHelpContents
+        + xi18nc("@info:whatsthis second half of handbook text with link",
+        "<para>If you want more elaborate introductions to the "
+        "different features of <emphasis>Dolphin</emphasis> "
+        "<link url='https://userbase.kde.org/Dolphin/File_Management'>click here</link>. "
+        "It will open the dedicated page in the KDE UserBase Wiki.</para>"));
+
+    const QString whatsThisWhatsThis = xi18nc("@info:whatsthis whatsthis button",
+        "<para>This is the button that invokes the help feature you are "
+        "using right now! Click it, then click any component of this "
+        "application to ask \"What's this?\" about it. The mouse cursor "
+        "will change appearance if no help is available for a spot.</para>");
+    actionCollection()->action(KStandardAction::name(KStandardAction::WhatsThis))
+       ->setWhatsThis(whatsThisWhatsThis
+        + xi18nc("@info:whatsthis second half of whatsthis button text without link",
+        "<para>There are two other ways to get help for this application: The "
+        "<interface>Dolphin Handbook</interface> in the <interface>Help"
+        "</interface> menu and the <emphasis>KDE UserBase Wiki</emphasis> "
+        "article about <emphasis>File Management</emphasis> online."
+        "</para><para>The \"What's this?\" help is "
+        "missing in most other windows so don't get too used to this.</para>"));
+    m_helpMenu->action(KHelpMenu::menuWhatsThis)->setWhatsThis(whatsThisWhatsThis
+        + xi18nc("@info:whatsthis second half of whatsthis button text with link",
+        "<para>There are two other ways to get help: "
+        "The <link url='help:/dolphin/index.html'>Dolphin Handbook</link> and "
+        "the <link url='https://userbase.kde.org/Dolphin/File_Management'>KDE "
+        "UserBase Wiki</link>.</para><para>The \"What's this?\" help is "
+        "missing in most other windows so don't get too used to this.</para>"));
+
+    const QString whatsThisReportBug = xi18nc("@info:whatsthis","<para>This opens a "
+        "window that will guide you through reporting errors or flaws "
+        "in this application or in other KDE software.</para>");
+    actionCollection()->action(KStandardAction::name(KStandardAction::ReportBug))
+       ->setWhatsThis(whatsThisReportBug);
+    m_helpMenu->action(KHelpMenu::menuReportBug)->setWhatsThis(whatsThisReportBug
+        + xi18nc("@info:whatsthis second half of reportbug text with link",
+        "<para>High-quality bug reports are much appreciated. To learn "
+        "how to make your bug report as effective as possible "
+        "<link url='https://community.kde.org/Get_Involved/Bug_Reporting'>"
+        "click here</link>.</para>"));
+
+    const QString whatsThisDonate = xi18nc("@info:whatsthis","<para>This opens a "
+        "<emphasis>web page</emphasis> where you can donate to "
+        "support the continued work on this application and many "
+        "other projects by the <emphasis>KDE</emphasis> community.</para>"
+        "<para>Donating is the easiest and fastest way to efficiently "
+        "support KDE and its projects. KDE projects are available for "
+        "free therefore your donation is needed to cover things that "
+        "require money like servers, contributor meetings, etc.</para>"
+        "<para><emphasis>KDE e.V.</emphasis> is the non-profit "
+        "organization behind the KDE community.</para>");
+    actionCollection()->action(KStandardAction::name(KStandardAction::Donate))
+       ->setWhatsThis(whatsThisDonate);
+    m_helpMenu->action(KHelpMenu::menuDonate)->setWhatsThis(whatsThisDonate);
+
+    const QString whatsThisSwitchLanguage = xi18nc("@info:whatsthis",
+        "With this you can change the language this application uses."
+        "<nl/>You can even set secondary languages which will be used "
+        "if texts are not available in your preferred language.");
+    actionCollection()->action(KStandardAction::name(KStandardAction::SwitchApplicationLanguage))
+       ->setWhatsThis(whatsThisSwitchLanguage);
+    m_helpMenu->action(KHelpMenu::menuSwitchLanguage)->setWhatsThis(whatsThisSwitchLanguage);
+
+    const QString whatsThisAboutApp = xi18nc("@info:whatsthis","This opens a "
+        "window that informs you about the version, license, "
+        "used libraries and maintainers of this application.");
+    actionCollection()->action(KStandardAction::name(KStandardAction::AboutApp))
+       ->setWhatsThis(whatsThisAboutApp);
+    m_helpMenu->action(KHelpMenu::menuAboutApp)->setWhatsThis(whatsThisAboutApp);
+
+    const QString whatsThisAboutKDE = xi18nc("@info:whatsthis","This opens a "
+        "window with information about <emphasis>KDE</emphasis>. "
+        "The KDE community are the people behind this free software."
+        "<nl/>If you like using this application but don't know "
+        "about KDE or want to see a cute dragon have a look!");
+    actionCollection()->action(KStandardAction::name(KStandardAction::AboutKDE))
+       ->setWhatsThis(whatsThisAboutKDE);
+    m_helpMenu->action(KHelpMenu::menuAboutKDE)->setWhatsThis(whatsThisAboutKDE);
+}
+
+bool DolphinMainWindow::event(QEvent *event)
+{
+    if (event->type() == QEvent::WhatsThisClicked) {
+        event->accept();
+        QWhatsThisClickedEvent* whatsThisEvent = dynamic_cast<QWhatsThisClickedEvent*>(event);
+        QDesktopServices::openUrl(QUrl(whatsThisEvent->href()));
+        return true;
+    } else if (event->type() == QEvent::WindowActivate) {
+        updateOpenPreferredSearchToolAction();
+    }
+    return KXmlGuiWindow::event(event);
+}
+
+bool DolphinMainWindow::eventFilter(QObject* obj, QEvent* event)
+{
+    Q_UNUSED(obj)
+    if (event->type() == QEvent::WhatsThisClicked) {
+        event->accept();
+        QWhatsThisClickedEvent* whatsThisEvent = dynamic_cast<QWhatsThisClickedEvent*>(event);
+        QDesktopServices::openUrl(QUrl(whatsThisEvent->href()));
+        return true;
+    }
+    return false;
+}
+
+void DolphinMainWindow::focusTerminalPanel()
+{
+    if (m_terminalPanel->isVisible()) {
+        if (m_terminalPanel->terminalHasFocus()) {
+            m_activeViewContainer->view()->setFocus(Qt::FocusReason::ShortcutFocusReason);
+            actionCollection()->action(QStringLiteral("focus_terminal_panel"))->setText(i18nc("@action:inmenu Tools", "Focus Terminal Panel"));
+        } else {
+            m_terminalPanel->setFocus(Qt::FocusReason::ShortcutFocusReason);
+            actionCollection()->action(QStringLiteral("focus_terminal_panel"))->setText(i18nc("@action:inmenu Tools", "Defocus Terminal Panel"));
+        }
+    } else {
+        actionCollection()->action(QStringLiteral("show_terminal_panel"))->trigger();
+        actionCollection()->action(QStringLiteral("focus_terminal_panel"))->setText(i18nc("@action:inmenu Tools", "Defocus Terminal Panel"));
+    }
+}
+

 DolphinMainWindow::UndoUiInterface::UndoUiInterface() :
     KIO::FileUndoManager::UiInterface()
 {
 DolphinMainWindow::UndoUiInterface::UndoUiInterface() :
     KIO::FileUndoManager::UiInterface()
 {


@@ -1671,3 +2364,8 @@ void DolphinMainWindow::UndoUiInterface::jobError(KIO::Job* job)
     }
 }
 
     }
 }
 

+bool DolphinMainWindow::isUrlOpen(const QString& url)
+{
+    return m_tabWidget->isUrlOpen(QUrl::fromUserInput((url)));
+}
+