diff --git a/src/main.rs b/src/main.rs
index e110492..930e34e 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -8,14 +8,13 @@ use gtk::prelude::*;
 use glib::clone;
 use gtk::SettingsExt;
 use std::env::args;
-use std::sync::{Arc, RwLock};
 use std::thread;
 
 mod menu;
 mod stato_finestra;
 mod tabs;
 mod wake_listener;
-use stato_finestra::OperazStato;
+use stato_finestra::{OperazStato, PosizFinestra, StatoFinestra, StatoFull};
 
 fn build_ui(application: &gtk::Application) {
     let window = gtk::ApplicationWindow::new(application);
@@ -70,8 +69,7 @@ fn build_ui(application: &gtk::Application) {
         }),
     );
     let (key, modifier) = gtk::accelerator_parse("F11");
-    let full_screen = Arc::new(RwLock::new(false));
-    let stato = Arc::new(RwLock::new(stato_finestra::StatoFinestra::new(stato_finestra::PosizFinestra::Su)));
+    let stato = StatoFinestra::new_arc(PosizFinestra::Su, StatoFull::NonFull);
     let stato0 = stato.clone();
     let stato1 = stato.clone();
     let stato2 = stato.clone();
@@ -83,15 +81,16 @@ fn build_ui(application: &gtk::Application) {
         modifier,
         gtk::AccelFlags::VISIBLE,
         clone!(@weak window => @default-return true, move |_accel_g, _win, _key, _modif| {
-            if let Ok(mut lock) = full_screen.write(){
-                if *lock {
+            match stato5.get_full() {
+                StatoFull::Full => {
                     window.unfullscreen();
-                    stato5.set_full(stato_finestra::StatoFull::NonFull);
-                } else {
-                    window.fullscreen();
-                    stato5.set_full(stato_finestra::StatoFull::Full);
+                    stato5.set_full(StatoFull::NonFull);
                 }
-                *lock = !*lock;
+                StatoFull::NonFull => {
+                    window.fullscreen();
+                    stato5.set_full(StatoFull::Full);
+                }
+                _ => {}
             }
             true
         }),
@@ -133,23 +132,21 @@ fn build_ui(application: &gtk::Application) {
     window.connect_focus_in_event(clone!(@weak window => @default-return gtk::Inhibit(false),
         move |_widget, _b| stato_finestra::focus_in(&window, &stato2)));
     nb.connect_destroy(move |_nb| {
-        stato.set_pos(stato_finestra::PosizFinestra::Chiudendo);
+        stato.set_pos(PosizFinestra::Chiudendo);
     });
-    nb.connect_page_removed(
-        clone!(@weak window => move |notebook, _vte, _index| {
-            if notebook.get_n_pages() == 0 {
-                if stato0.get_pos() != stato_finestra::PosizFinestra::Chiudendo {
-                    crate::tabs::apri_tab(&window, &notebook, false,None, None, None);
-                    stato_finestra::butta_giu(&window, &stato0);
-                }
-            } else {
-                tabs::set_titles(&notebook);
-                if notebook.get_n_pages() == 1 {
-                    notebook.set_show_tabs(false);
-                }
+    nb.connect_page_removed(clone!(@weak window => move |notebook, _vte, _index| {
+        if notebook.get_n_pages() == 0 {
+            if stato0.get_pos() != PosizFinestra::Chiudendo {
+                crate::tabs::apri_tab(&window, &notebook, false,None, None, None);
+                stato_finestra::butta_giu(&window, &stato0);
             }
-        }),
-    );
+        } else {
+            tabs::set_titles(&notebook);
+            if notebook.get_n_pages() == 1 {
+                notebook.set_show_tabs(false);
+            }
+        }
+    }));
     nb.connect_page_added(move |notebook, _vte, _index| {
         if notebook.get_n_pages() > 1 {
             notebook.set_show_tabs(true);
@@ -185,14 +182,7 @@ fn build_ui(application: &gtk::Application) {
                 command,
             } => {
                 tira_su();
-                tabs::apri_tab(
-                    &window,
-                    &nb,
-                    true,
-                    cwd,
-                    Some(shell),
-                    Some(command),
-                );
+                tabs::apri_tab(&window, &nb, true, cwd, Some(shell), Some(command));
             }
         }
         glib::Continue(true)
diff --git a/src/stato_finestra.rs b/src/stato_finestra.rs
index 1e5abd9..798ded7 100644
--- a/src/stato_finestra.rs
+++ b/src/stato_finestra.rs
@@ -21,11 +21,8 @@ pub struct StatoFinestra {
     full: StatoFull,
 }
 impl StatoFinestra {
-    pub fn new(p: PosizFinestra) -> Self {
-        StatoFinestra {
-            full: NonFull,
-            posiz: p,
-        }
+    pub fn new_arc(p: PosizFinestra, f: StatoFull) -> Arc<RwLock<Self>> {
+        Arc::new(RwLock::new(StatoFinestra { full: f, posiz: p }))
     }
 }
 pub trait OperazStato {
diff --git a/src/tabs.rs b/src/tabs.rs
index 2346dce..f4efb9a 100644
--- a/src/tabs.rs
+++ b/src/tabs.rs
@@ -31,7 +31,7 @@ pub fn build_tab(
     let shell = shell.unwrap_or(vec![var("SHELL").unwrap_or("/bin/sh".to_string())]);
     let shell: Vec<_> = shell.iter().map(Path::new).collect();
     let stringa: String;
-    let cwd = if cwd.is_some() { 
+    let cwd = if cwd.is_some() {
         stringa = cwd.unwrap();
         Some(stringa.as_str())
     } else {