use vt100 to render the terminal data in the browser(!)

3 files changed, 20 insertions, 6 deletions

diff --git a/teleterm-web/Cargo.toml b/teleterm-web/Cargo.toml
index a7c82b6..47496de 100644
--- a/teleterm-web/Cargo.toml
+++ b/teleterm-web/Cargo.toml
@@ -18,5 +18,6 @@ log = "0.4"
 seed = "0.4"
 serde = "1"
 serde_json = "1"
+vt100 = "0.6"
 wasm-bindgen = "0.2"
 web-sys = { version = "0.3", features = ["ErrorEvent", "MessageEvent", "WebSocket"] }
diff --git a/teleterm-web/src/lib.rs b/teleterm-web/src/lib.rs
index 030ac45..5dd5a33 100644
--- a/teleterm-web/src/lib.rs
+++ b/teleterm-web/src/lib.rs
@@ -59,11 +59,7 @@ fn update(
                     serde_json::from_str(&json).unwrap();
                 match msg {
                     crate::protocol::Message::TerminalOutput { data } => {
-                        log::info!(
-                            "{}: got bytes: {}",
-                            id,
-                            String::from_utf8_lossy(&data)
-                        );
+                        model.process(&data);
                     }
                 }
             }
@@ -87,6 +83,7 @@ fn view(model: &crate::model::Model) -> impl View<Msg> {
         seed::h1!["it's a seed app"],
         seed::ul![list],
         seed::button![simple_ev(Ev::Click, Msg::Refresh), "refresh"],
+        seed::pre![model.screen()],
     ]
 }
 
diff --git a/teleterm-web/src/model.rs b/teleterm-web/src/model.rs
index 263dd7c..a90ebe2 100644
--- a/teleterm-web/src/model.rs
+++ b/teleterm-web/src/model.rs
@@ -6,6 +6,7 @@ const WATCH_URL: &str = "ws://127.0.0.1:4145/watch";
 struct WatchConn {
     #[allow(dead_code)] // no idea why it thinks this is dead
     ws: WebSocket,
+    term: vt100::Parser,
 }
 
 impl Drop for WatchConn {
@@ -44,7 +45,8 @@ impl Model {
             crate::Msg::Watch,
             orders,
         );
-        self.watch_conn = Some(WatchConn { ws })
+        let term = vt100::Parser::default();
+        self.watch_conn = Some(WatchConn { ws, term })
     }
 
     pub fn sessions(&self) -> &[Session] {
@@ -54,4 +56,18 @@ impl Model {
     pub fn update_sessions(&mut self, sessions: Vec<Session>) {
         self.sessions = sessions;
     }
+
+    pub fn process(&mut self, bytes: &[u8]) {
+        if let Some(conn) = &mut self.watch_conn {
+            conn.term.process(bytes);
+        }
+    }
+
+    pub fn screen(&self) -> String {
+        if let Some(conn) = &self.watch_conn {
+            conn.term.screen().contents()
+        } else {
+            "".to_string()
+        }
+    }
 }