move out thread state

2 files changed, 50 insertions, 0 deletions

diff --git a/src/state/mod.rs b/src/state/mod.rs
new file mode 100644
index 0000000..fc563e7
--- /dev/null
+++ b/src/state/mod.rs
@@ -0,0 +1,7 @@
+mod threads;
+
+pub use threads::Threads;
+
+pub enum State<'d, 'q> {
+    Threads(Threads<'d, 'q>),
+}
diff --git a/src/state/threads.rs b/src/state/threads.rs
new file mode 100644
index 0000000..20b365e
--- /dev/null
+++ b/src/state/threads.rs
@@ -0,0 +1,43 @@
+use super::State;
+
+use std::io::Write;
+use termion::{color, event::Key};
+
+pub struct Threads<'d, 'q> {
+    pub threads: Vec<notmuch::Thread<'d, 'q>>,
+    pub i: isize,
+}
+
+impl<'d, 'q> Threads<'d, 'q> {
+    pub fn init<W: Write>(&mut self, out: &mut W) {
+        draw(&self, out);
+    }
+
+    pub fn tick<W: Write>(mut self, out: &mut W, key: Key) -> State<'d, 'q> {
+        match key {
+            Key::Char('j') => self.i += 1,
+            Key::Char('k') => self.i -= 1,
+            _ => (),
+        }
+        self.i = self.i.rem_euclid(self.threads.len() as isize);
+        draw(&self, out);
+        State::Threads(self)
+    }
+}
+
+fn draw<W: Write>(state: &Threads, out: &mut W) {
+    write!(out, "{}", termion::clear::All).unwrap();
+
+    for (i, thread) in state.threads.iter().enumerate() {
+        write!(out, "{}", termion::cursor::Goto(1, (i + 1) as u16)).unwrap();
+        let highlight = i == state.i as usize;
+        if highlight {
+            write!(out, "{}", color::Fg(color::Red)).unwrap();
+        }
+        write!(out, "thread {:?}, {:?}", thread.subject(), thread.authors()).unwrap();
+        if highlight {
+            write!(out, "{}", color::Fg(color::Reset)).unwrap();
+        }
+    }
+    out.flush().unwrap();
+}