Improve dialog

Gtkmm3/gtk141_minesweeper2/src/InputBox.cc

@@ -7,6 +7,7 @@ InputBox::InputBox(BaseObjectType *cobject, const Glib::RefPtr<Gtk::Builder> &re
 {
     // Get Widgets
     ref_builder->get_widget("entry_name", entry_name);
+    entry_name->signal_activate().connect(sigc::mem_fun(*this, &InputBox::entry_activated));
 }
 
 void InputBox::on_response(int response_id){
@@ -57,6 +58,11 @@ void InputBox::set_game_time(int time){
     game_time = time;
 }
 
+void InputBox::entry_activated(){
+    // Default response
+    response(Gtk::RESPONSE_OK);
+}
+
 InputBox *InputBox::create(Gtk::Window &parent)
 {
     // Create a inputbox object

Gtkmm3/gtk141_minesweeper2/src/InputBox.hh

@@ -28,4 +28,7 @@ class InputBox : public Gtk::Dialog{
 
         // Child widget
         Gtk::Entry *entry_name;
+
+        // Signal Handlers
+        void entry_activated();
 };