folderstabssettingspage: add 3 options for closing split view

There is one bool setting in Dolphin Interface->Folders&Tabs->Split_view
which determines which panel is closed on "Close split view" button
click (currently focused or unfocused one).

This commit replaces this setting with (enum-based) 3-state combo box.
Since now we can set "When closing a split view" action to:
 - Close the active pane
 - Close the inactive pane
 - Close the right pane

BUG: 464696
BUG: 186185

1 files changed, 3 insertions, 1 deletions

diff --git a/src/settings/interface/folderstabssettingspage.h b/src/settings/interface/folderstabssettingspage.h
index 89e5c0982..ae104cc7e 100644
--- a/src/settings/interface/folderstabssettingspage.h
+++ b/src/settings/interface/folderstabssettingspage.h
@@ -13,6 +13,7 @@
 #include <qobject.h>
 
 class QCheckBox;
+class QComboBox;
 class QLineEdit;
 class QLabel;
 class QRadioButton;
@@ -63,7 +64,8 @@ private:
     QCheckBox *m_showFullPathInTitlebar;
     QCheckBox *m_openExternallyCalledFolderInNewTab;
     QCheckBox *m_useTabForSplitViewSwitch;
-    QCheckBox *m_closeActiveSplitView;
+
+    QComboBox *m_closeSplitComboBox;
 };
 
 #endif