Override Ctrl-C by disabling callback in Cursive

Thanks to @gyscos for the explanation in #22!

Also removed extraneous code that's no longer
needed.

1 files changed, 3 insertions, 6 deletions

diff --git a/src/main.rs b/src/main.rs
index d733f97..3ec964a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -50,13 +50,11 @@ fn main() {
             ),
         }
     } else {
+        let mut s = termion().unwrap();
         let app = App::load_state();
-        let m = app.message.clone();
-        unsafe { signal_hook::register(signal_hook::SIGINT, move || {
-            m.write().unwrap().set_message("Use the :q command to quit");
-        }) }.unwrap();
 
-        let mut s = termion().unwrap();
+        // prevent Ctrl-C from killing the app and allow the app to override it.
+        s.clear_global_callbacks(cursive::event::Event::CtrlChar('c'));
 
         let layout = NamedView::new(
             "Frame",
@@ -66,7 +64,6 @@ fn main() {
         s.add_global_callback(':', |s| open_command_window(s));
 
         s.set_theme(theme::theme_gen());
-
         s.run();
     }
 }