improved split header menu button

src/util/FunctionEventFilter.cpp

@@ -0,0 +1,17 @@
+#include "FunctionEventFilter.hpp"
+
+namespace chatterino {
+
+FunctionEventFilter::FunctionEventFilter(
+    QObject *parent, std::function<bool(QObject *, QEvent *)> function)
+    : QObject(parent)
+    , function_(std::move(function))
+{
+}
+
+bool FunctionEventFilter::eventFilter(QObject *watched, QEvent *event)
+{
+    return this->function_(watched, event);
+}
+
+}  // namespace chatterino

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