Prettify labels in back/forward button menu

Adds a compact label based on the closes place similar to the
address bar (e.g. instead of /home/user/Pictures/Holidays it will
show Pictures/Holidays), unless "show full path in address bar"
is enabled.

Also, add the folder icon

2 files changed, 37 insertions, 2 deletions

diff --git a/src/dolphinmainwindow.cpp b/src/dolphinmainwindow.cpp
index 166091ca7..d244c4a7c 100644
--- a/src/dolphinmainwindow.cpp
+++ b/src/dolphinmainwindow.cpp
@@ -749,13 +749,45 @@ void DolphinMainWindow::slotToolBarActionMiddleClicked(QAction *action)
     }
 }
 
+QAction *DolphinMainWindow::urlNavigatorHistoryAction(const KUrlNavigator *urlNavigator, int historyIndex, QObject *parent)
+{
+    const QUrl url = urlNavigator->locationUrl(historyIndex);
+
+    QString text = url.toDisplayString(QUrl::PreferLocalFile);
+
+    if (!urlNavigator->showFullPath()) {
+        const KFilePlacesModel *placesModel = DolphinPlacesModelSingleton::instance().placesModel();
+
+        const QModelIndex closestIdx = placesModel->closestItem(url);
+        if (closestIdx.isValid()) {
+            const QUrl placeUrl = placesModel->url(closestIdx);
+
+            text = placesModel->text(closestIdx);
+
+            QString pathInsidePlace = url.path().mid(placeUrl.path().length());
+
+            if (!pathInsidePlace.isEmpty() && !pathInsidePlace.startsWith(QLatin1Char('/'))) {
+                pathInsidePlace.prepend(QLatin1Char('/'));
+            }
+
+            if (pathInsidePlace != QLatin1Char('/')) {
+                text.append(pathInsidePlace);
+            }
+        }
+    }
+
+    QAction *action = new QAction(QIcon::fromTheme(KIO::iconNameForUrl(url)), text, parent);
+    action->setData(historyIndex);
+    return action;
+}
+
 void DolphinMainWindow::slotAboutToShowBackPopupMenu()
 {
     const KUrlNavigator *urlNavigator = m_activeViewContainer->urlNavigatorInternalWithHistory();
     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).toDisplayString(QUrl::PreferLocalFile), m_backAction->menu());
+        QAction *action = urlNavigatorHistoryAction(urlNavigator, i, m_backAction->menu());
         action->setData(i);
         m_backAction->menu()->addAction(action);
     }
@@ -784,7 +816,7 @@ void DolphinMainWindow::slotAboutToShowForwardPopupMenu()
     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).toDisplayString(QUrl::PreferLocalFile), m_forwardAction->menu());
+        QAction *action = urlNavigatorHistoryAction(urlNavigator, i, m_forwardAction->menu());
         action->setData(i);
         m_forwardAction->menu()->addAction(action);
     }
diff --git a/src/dolphinmainwindow.h b/src/dolphinmainwindow.h
index 1a3ec4efb..fbe926cef 100644
--- a/src/dolphinmainwindow.h
+++ b/src/dolphinmainwindow.h
@@ -653,6 +653,9 @@ private:
      */
     bool addHamburgerMenuToToolbar();
 
+    /** Creates an action representing an item in the URL navigator history */
+    static QAction *urlNavigatorHistoryAction(const KUrlNavigator *urlNavigator, int historyIndex, QObject *parent = nullptr);
+
 private:
     /**
      * Implements a custom error handling for the undo manager. This