LibGUI: Create an alias for Widget UnregisteredChildHandler

Userland/Libraries/LibGUI/ScrollableContainerWidget.cpp

@@ -102,7 +102,7 @@ void ScrollableContainerWidget::set_widget(GUI::Widget* widget)
     update_widget_position();
 }
 
-ErrorOr<void> ScrollableContainerWidget::load_from_gml_ast(NonnullRefPtr<GUI::GML::Node> ast, ErrorOr<NonnullRefPtr<Core::Object>> (*unregistered_child_handler)(DeprecatedString const&))
+ErrorOr<void> ScrollableContainerWidget::load_from_gml_ast(NonnullRefPtr<GUI::GML::Node> ast, UnregisteredChildHandler unregistered_child_handler)
 {
     if (is<GUI::GML::GMLFile>(ast.ptr()))
         return load_from_gml_ast(static_ptr_cast<GUI::GML::GMLFile>(ast)->main_class(), unregistered_child_handler);

Userland/Libraries/LibGUI/ScrollableContainerWidget.h

@@ -30,7 +30,7 @@ private:
     void update_widget_size();
     void update_widget_position();
     void update_widget_min_size();
-    virtual ErrorOr<void> load_from_gml_ast(NonnullRefPtr<GUI::GML::Node> ast, ErrorOr<NonnullRefPtr<Core::Object>> (*unregistered_child_handler)(DeprecatedString const&)) override;
+    virtual ErrorOr<void> load_from_gml_ast(NonnullRefPtr<GUI::GML::Node> ast, UnregisteredChildHandler) override;
 
     ScrollableContainerWidget();
 

Userland/Libraries/LibGUI/Widget.cpp

@@ -1153,7 +1153,7 @@ ErrorOr<void> Widget::try_load_from_gml(StringView gml_string)
     });
 }
 
-ErrorOr<void> Widget::try_load_from_gml(StringView gml_string, ErrorOr<NonnullRefPtr<Core::Object>> (*unregistered_child_handler)(DeprecatedString const&))
+ErrorOr<void> Widget::try_load_from_gml(StringView gml_string, UnregisteredChildHandler unregistered_child_handler)
 {
     auto value = TRY(GML::parse_gml(gml_string));
     return load_from_gml_ast(value, unregistered_child_handler);
@@ -1164,12 +1164,12 @@ bool Widget::load_from_gml(StringView gml_string)
     return !try_load_from_gml(gml_string).is_error();
 }
 
-bool Widget::load_from_gml(StringView gml_string, ErrorOr<NonnullRefPtr<Core::Object>> (*unregistered_child_handler)(DeprecatedString const&))
+bool Widget::load_from_gml(StringView gml_string, UnregisteredChildHandler unregistered_child_handler)
 {
     return !try_load_from_gml(gml_string, unregistered_child_handler).is_error();
 }
 
-ErrorOr<void> Widget::load_from_gml_ast(NonnullRefPtr<GUI::GML::Node> ast, ErrorOr<NonnullRefPtr<Core::Object>> (*unregistered_child_handler)(DeprecatedString const&))
+ErrorOr<void> Widget::load_from_gml_ast(NonnullRefPtr<GUI::GML::Node> ast, UnregisteredChildHandler unregistered_child_handler)
 {
     if (is<GUI::GML::GMLFile>(ast.ptr()))
         return load_from_gml_ast(static_ptr_cast<GUI::GML::GMLFile>(ast)->main_class(), unregistered_child_handler);

Userland/Libraries/LibGUI/Widget.h

@@ -353,12 +353,13 @@ public:
     AK::Variant<Gfx::StandardCursor, NonnullRefPtr<Gfx::Bitmap>> const& override_cursor() const { return m_override_cursor; }
     void set_override_cursor(AK::Variant<Gfx::StandardCursor, NonnullRefPtr<Gfx::Bitmap>>);
 
+    using UnregisteredChildHandler = ErrorOr<NonnullRefPtr<Core::Object>>(DeprecatedString const&);
     ErrorOr<void> try_load_from_gml(StringView);
-    ErrorOr<void> try_load_from_gml(StringView, ErrorOr<NonnullRefPtr<Core::Object>> (*unregistered_child_handler)(DeprecatedString const&));
+    ErrorOr<void> try_load_from_gml(StringView, UnregisteredChildHandler);
 
     // FIXME: Replace all uses of load_from_gml() with try_load_from_gml()
     bool load_from_gml(StringView gml_string);
-    bool load_from_gml(StringView, ErrorOr<NonnullRefPtr<Core::Object>> (*unregistered_child_handler)(DeprecatedString const&));
+    bool load_from_gml(StringView, UnregisteredChildHandler);
 
     // FIXME: remove this when all uses of shrink_to_fit are eliminated
     void set_shrink_to_fit(bool);
@@ -367,7 +368,7 @@ public:
     bool has_pending_drop() const;
 
     // In order for others to be able to call this, it needs to be public.
-    virtual ErrorOr<void> load_from_gml_ast(NonnullRefPtr<GUI::GML::Node> ast, ErrorOr<NonnullRefPtr<Core::Object>> (*unregistered_child_handler)(DeprecatedString const&));
+    virtual ErrorOr<void> load_from_gml_ast(NonnullRefPtr<GUI::GML::Node> ast, UnregisteredChildHandler);
 
 protected:
     Widget();