Don't switch pages when right-clicking on list

apps/opencs/view/prefs/contextmenulist.cpp

@@ -2,6 +2,7 @@
 
 #include <QMenu>
 #include <QContextMenuEvent>
+#include <QMouseEvent>
 
 #include "../../model/prefs/state.hpp"
 
@@ -21,6 +22,17 @@ void CSVPrefs::ContextMenuList::contextMenuEvent(QContextMenuEvent* e)
     delete menu;
 }
 
+void CSVPrefs::ContextMenuList::mousePressEvent(QMouseEvent* e)
+{
+    // enable all buttons except right click
+    // This means that when right-clicking to enable the
+    // context menu, the page doesn't switch at the same time.
+    if (!(e->buttons() & Qt::RightButton))
+    {
+        QListWidget::mousePressEvent(e);
+    }
+}
+
 void CSVPrefs::ContextMenuList::resetCategory()
 {
     CSMPrefs::State::get().resetCategory(currentItem()->text().toStdString());

apps/opencs/view/prefs/contextmenulist.hpp

@@ -4,6 +4,7 @@
 #include <QListWidget>
 
 class QContextMenuEvent;
+class QMouseEvent;
 
 namespace CSVPrefs
 {
@@ -19,6 +20,8 @@ namespace CSVPrefs
     
             void contextMenuEvent(QContextMenuEvent* e);
 
+            void mousePressEvent(QMouseEvent* e);
+    
         private slots:
     
             void resetCategory();