group tui_engine and tui_content; cargo update

input/src/input.rs

@@ -0,0 +1,36 @@
+use crate::*;
+use std::time::Duration;
+use std::thread::JoinHandle;
+
+/// Event source
+pub trait Input: Send + Sync + Sized {
+    /// Type of input event
+    type Event;
+    /// Result of handling input
+    type Handled; // TODO: make this an Option<Box dyn Command<Self>> containing the undo
+    /// Currently handled event
+    fn event (&self) -> &Self::Event;
+    /// Whether component should exit
+    fn is_done (&self) -> bool;
+    /// Mark component as done
+    fn done (&self);
+}
+
+/// Input thread entrypoint.
+pub trait InputRun<T> {
+    fn run_input (engine: T, state: Self, timer: Duration) -> JoinHandle<()>;
+}
+
+/// Handle input through a mutable reference.
+pub trait Handle<E: Input>: Send + Sync {
+    fn handle (&mut self, _input: &E) -> Perhaps<E::Handled> {
+        Ok(None)
+    }
+}
+
+/// Handle input through an immutable reference (e.g. [Arc<RwLock>] or [Arc<Mutex>])
+pub trait HandleRef<E: Input>: Send + Sync {
+    fn handle (&self, _input: &E) -> Perhaps<E::Handled> {
+        Ok(None)
+    }
+}