Add update of selected file in explorer when switching buffers

helix-term/src/ui/editor.rs

@@ -1496,7 +1496,26 @@ impl Component for EditorView {
         }
 
         if let Some(explore) = self.explorer.as_mut() {
-            if explore.is_focus() {
+            let needs_update = explore.is_focus() || {
+                if let Some(current_document_path) = doc!(cx.editor).path().cloned() {
+                    if let Some(current_explore_path) = explore.current_file() {
+                        if *current_explore_path != current_document_path {
+                            let _ = explore.reveal_file(current_document_path);
+
+                            true
+                        } else {
+                            false
+                        }
+                    } else {
+                        let _ = explore.reveal_file(current_document_path);
+                        true
+                    }
+                } else {
+                    false
+                }
+            };
+
+            if needs_update {
                 let area = if use_bufferline {
                     area.clip_top(1)
                 } else {

helix-term/src/ui/explorer.rs

@@ -605,6 +605,11 @@ impl Explorer {
         }
     }
 
+    /// Returns the current file in the tree view
+    pub fn current_file(&self) -> Option<&PathBuf> {
+        self.tree.current_item().ok().map(|c| &c.path)
+    }
+
     pub fn is_opened(&self) -> bool {
         self.state.open
     }