feat(reload): reload the active tab with Cmd/Ctrl+R

crates/ely_servo_host/src/bin/ely_servo_sidecar/live.rs

@@ -297,6 +297,13 @@ fn handle_request(
             drop((webview_id, ready_surface_ids, pending_surface_ids));
             Ok(outcome)
         }
+        LiveRequest::Reload { tab_id } => {
+            if let Some(session) = sessions.get_mut(&tab_id) {
+                session.clear_presented_frame();
+                host.reload(&session.webview_id)?;
+            }
+            Ok(LiveOutcome::empty())
+        }
         LiveRequest::Close { tab_id } => {
             if let Some(session) = sessions.remove(&tab_id) {
                 host.close_webview(&session.webview_id);

crates/ely_servo_host/src/bin/ely_servo_sidecar/live_protocol.rs

@@ -68,6 +68,9 @@ pub(super) enum LiveRequest {
         #[serde(default)]
         pending_surface_ids: Vec<u64>,
     },
+    Reload {
+        tab_id: String,
+    },
     Close {
         tab_id: String,
     },

crates/ely_servo_host/src/host.rs

@@ -372,6 +372,11 @@ pub trait ServoHost {
 
     fn navigate(&mut self, request: NavigationRequest) -> Result<(), ServoHostError>;
 
+    /// Reload the current document in place (the URL is unchanged). Servo's
+    /// load-status transitions drive the loading indicator, so no navigation
+    /// hold is armed.
+    fn reload(&mut self, webview_id: &WebViewId) -> Result<(), ServoHostError>;
+
     fn scroll(&mut self, request: ScrollRequest) -> Result<(), ServoHostError>;
 
     fn resize(&mut self, request: ResizeRequest) -> Result<(), ServoHostError>;

crates/ely_servo_host/src/runtime.rs

@@ -227,6 +227,17 @@ impl ServoHost for SoftwareServoHost {
         Ok(())
     }
 
+    fn reload(&mut self, webview_id: &WebViewId) -> Result<(), ServoHostError> {
+        self.servo.spin_event_loop();
+        let webview = self
+            .webviews
+            .get_mut(webview_id)
+            .ok_or_else(|| ServoHostError::WebViewNotFound { id: webview_id.clone() })?;
+        webview.delegate.set_state(WebViewState::Loading);
+        webview.webview.reload();
+        Ok(())
+    }
+
     fn scroll(&mut self, request: ScrollRequest) -> Result<(), ServoHostError> {
         if request.delta_x == 0 && request.delta_y == 0 {
             return Ok(());