improved split header menu button

src/util/FunctionEventFilter.hpp

@@ -0,0 +1,24 @@
+#pragma once
+
+#include <QEvent>
+#include <QObject>
+#include <functional>
+
+namespace chatterino {
+
+class FunctionEventFilter : public QObject
+{
+    Q_OBJECT
+
+public:
+    FunctionEventFilter(QObject *parent,
+                        std::function<bool(QObject *, QEvent *)> function);
+
+protected:
+    bool eventFilter(QObject *watched, QEvent *event) override;
+
+private:
+    std::function<bool(QObject *, QEvent *)> function_;
+};
+
+}  // namespace chatterino