perf: batch queued cursor navigation events

src/editor.rs

@@ -2964,6 +2964,45 @@ impl Editor {
             self.active.view.mode
         }
     }
+    /// Direct document motions can share a frame without bypassing key dispatch.
+    pub(crate) fn can_batch_navigation(&self, input: &Input) -> bool {
+        matches!(self.active.view.mode, Mode::Normal | Mode::Visual)
+            && self.document_actions_available()
+            && self.startup_diagnostic.is_none()
+            && self.hover.is_none()
+            && self.palette.is_none()
+            && self.completion.is_none()
+            && !self
+                .file_picker
+                .as_ref()
+                .is_some_and(|picker| picker.focused)
+            && self.sequence_pending().is_none()
+            && !self.g_pending
+            && self.line_pending.is_none()
+            && self.seek_pending.is_none()
+            && matches!(
+                self.bindings
+                    .get(&self.active.view.mode)
+                    .and_then(|keys| keys.get(input)),
+                Some(Binding::Action(
+                    Action::Left
+                        | Action::Right
+                        | Action::Down
+                        | Action::Up
+                        | Action::LineStart
+                        | Action::LineEnd
+                        | Action::DocumentStart
+                        | Action::DocumentEnd
+                        | Action::GoToLine
+                        | Action::WordNext
+                        | Action::WordPrevious
+                        | Action::WordEnd
+                        | Action::BigWordNext
+                        | Action::BigWordPrevious
+                        | Action::BigWordEnd
+                ))
+            )
+    }
 
     pub fn diff_editable(&self) -> bool {
         self.diff