Initial implementation of the update callback + upstream termion

3 files changed, 14 insertions, 2 deletions

diff --git a/zellij-tile/src/data.rs b/zellij-tile/src/data.rs
index 2a03b94c7..abca9994e 100644
--- a/zellij-tile/src/data.rs
+++ b/zellij-tile/src/data.rs
@@ -23,7 +23,7 @@ pub enum Key {
     Esc,
 }
 
-#[derive(Debug, EnumDiscriminants, ToString, Serialize, Deserialize)]
+#[derive(Debug, Clone, EnumDiscriminants, ToString, Serialize, Deserialize)]
 #[strum_discriminants(derive(Hash, Serialize, Deserialize))]
 #[strum_discriminants(name(EventType))]
 pub enum Event {
diff --git a/zellij-tile/src/lib.rs b/zellij-tile/src/lib.rs
index 6adc9f6dc..eb1b08fb7 100644
--- a/zellij-tile/src/lib.rs
+++ b/zellij-tile/src/lib.rs
@@ -7,6 +7,7 @@ use data::*;
 #[allow(unused_variables)]
 pub trait ZellijTile {
     fn load(&mut self) {}
+    fn update(&mut self, event: Event) {}
     fn render(&mut self, rows: usize, cols: usize) {}
     // FIXME: Everything below this line should be purged
     fn handle_key(&mut self, key: Key) {}
@@ -29,6 +30,15 @@ macro_rules! register_tile {
         }
 
         #[no_mangle]
+        pub fn update() {
+            STATE.with(|state| {
+                state
+                    .borrow_mut()
+                    .update($crate::shim::deserialize_from_stdin().unwrap());
+            });
+        }
+
+        #[no_mangle]
         pub fn render(rows: i32, cols: i32) {
             STATE.with(|state| {
                 state.borrow_mut().render(rows as usize, cols as usize);
diff --git a/zellij-tile/src/shim.rs b/zellij-tile/src/shim.rs
index 3681e9ba5..e0e654909 100644
--- a/zellij-tile/src/shim.rs
+++ b/zellij-tile/src/shim.rs
@@ -45,7 +45,9 @@ pub fn get_tabs() -> Vec<TabInfo> {
     deserialize_from_stdin().unwrap_or_default()
 }
 
-fn deserialize_from_stdin<T: DeserializeOwned>() -> Option<T> {
+#[doc(hidden)]
+// FIXME: Make this just return T and do a .unwrap() at the end; also naming?
+pub fn deserialize_from_stdin<T: DeserializeOwned>() -> Option<T> {
     let mut json = String::new();
     io::stdin().read_line(&mut json).unwrap();
     serde_json::from_str(&json).ok()