state stack

1 files changed, 24 insertions, 6 deletions

diff --git a/src/state/mod.rs b/src/state/mod.rs
index 7b498f2..0fe9f40 100644
--- a/src/state/mod.rs
+++ b/src/state/mod.rs
@@ -6,24 +6,42 @@ use termion::input::TermRead;
 
 pub use threads::Threads;
 
-pub enum State {
-    Threads(Threads),
+pub struct Client {
+    states: Vec<State>,
 }
 
-impl State {
+impl Client {
+    pub fn new(initial_state: State) -> Self {
+        Self {
+            states: vec![initial_state],
+        }
+    }
+
     pub fn run<W: Write>(mut self, mut screen: W, stdin: Stdin) {
         for c in stdin.keys() {
             let c = c.unwrap();
             // Global keybinds
             match c {
-                Key::Char('q') => break,
+                Key::Char('q') => {
+                    self.states.pop().unwrap();
+                    if self.states.is_empty() {
+                        break;
+                    }
+                },
                 _ => ()
             }
 
-            // Pass to current state
-            self = match self {
+            let next_state = match self.states.last_mut().unwrap() {
                 State::Threads(s) => s.tick(&mut screen, c),
             };
+
+            if let Some(next_state) = next_state {
+                self.states.push(next_state);
+            }
         }
     }
 }
+
+pub enum State {
+    Threads(Threads),
+}