Simplify InputEvent

Now that I've decided the F1 menu should always show all key bindings,
there is no need for the InputEvent to be so complex.

cove-input/src/lib.rs

@@ -1,12 +1,49 @@
-mod event;
 mod keys;
 
 pub use cove_macro::KeyGroup;
+use crossterm::event::KeyEvent;
 
-pub use event::*;
-pub use keys::*;
+pub use crate::keys::*;
 
 /// A group of related key bindings.
 pub trait KeyGroup {
     fn bindings(&self) -> Vec<(&KeyBinding, &'static str)>;
 }
+
+#[derive(Debug, Clone)]
+pub enum InputEvent {
+    Key(KeyEvent),
+    Paste(String),
+}
+
+impl InputEvent {
+    pub fn from_crossterm_event(event: crossterm::event::Event) -> Option<Self> {
+        use crossterm::event::Event::*;
+        match event {
+            Key(event) => Some(Self::Key(event)),
+            Paste(string) => Some(Self::Paste(string)),
+            _ => None,
+        }
+    }
+
+    pub fn key_event(&self) -> Option<KeyEvent> {
+        match self {
+            Self::Key(event) => Some(*event),
+            _ => None,
+        }
+    }
+
+    pub fn paste_event(&self) -> Option<&str> {
+        match self {
+            Self::Paste(string) => Some(string),
+            _ => None,
+        }
+    }
+
+    pub fn matches<S: ToString>(&self, binding: &KeyBinding) -> bool {
+        match self.key_event() {
+            Some(event) => binding.matches(event),
+            None => false,
+        }
+    }
+}