DolphinNavigator: Hide the KUrlNavigator background if DolphinNavigator is outside of toolbar

When the DolphinNavigator is outside of the toolbar, it's better to hide
the background for better looks.

This change works only when Dolphin is built against KIO 6.14.

1 files changed, 14 insertions, 0 deletions

diff --git a/src/dolphinnavigatorswidgetaction.cpp b/src/dolphinnavigatorswidgetaction.cpp
index 0095869b1..1e4e5df9c 100644
--- a/src/dolphinnavigatorswidgetaction.cpp
+++ b/src/dolphinnavigatorswidgetaction.cpp
@@ -9,6 +9,7 @@
 
 #include "trash/dolphintrash.h"
 
+#include <KCoreAddons>
 #include <KLocalizedString>
 #include <KNotificationJobUiDelegate>
 #include <KService>
@@ -102,6 +103,7 @@ void DolphinNavigatorsWidgetAction::createSecondaryUrlNavigator()
     Q_ASSERT(m_splitter->count() == 1);
     m_splitter->addWidget(createNavigatorWidget(Secondary));
     Q_ASSERT(m_splitter->count() == 2);
+    secondaryUrlNavigator()->setBackgroundEnabled(primaryUrlNavigator()->isBackgroundEnabled());
     updateText();
 }
 
@@ -148,6 +150,18 @@ void DolphinNavigatorsWidgetAction::setSecondaryNavigatorVisible(bool visible)
     updateText();
 }
 
+void DolphinNavigatorsWidgetAction::setBackgroundEnabled(bool enabled)
+{
+#if KIO_VERSION >= QT_VERSION_CHECK(6, 14, 0)
+    m_splitter->setAutoFillBackground(!enabled);
+    m_splitter->setBackgroundRole(enabled ? QPalette::Window : QPalette::Base);
+    primaryUrlNavigator()->setBackgroundEnabled(enabled);
+    if (secondaryUrlNavigator()) {
+        secondaryUrlNavigator()->setBackgroundEnabled(enabled);
+    }
+#endif
+}
+
 QWidget *DolphinNavigatorsWidgetAction::createWidget(QWidget *parent)
 {
     QWidget *oldParent = m_splitter->parentWidget();