💩 Work around Textualize/textual#5488

Author: davep

src/hike/widgets/navigation/widget.py

@@ -2,8 +2,10 @@
 
 ##############################################################################
 # Textual imports.
+from textual import on
 from textual.app import ComposeResult
 from textual.containers import Vertical
+from textual.events import DescendantBlur, DescendantFocus
 from textual.reactive import var
 from textual.widgets import Placeholder, TabbedContent
 
@@ -34,6 +36,13 @@ class Navigation(Vertical):
     _history: var[HistoryView | None] = var(None)
     """The history display."""
 
+    @on(DescendantBlur)
+    @on(DescendantFocus)
+    def _textual_5488_workaround(self) -> None:
+        """Workaround for https://github.com/Textualize/textual/issues/5488"""
+        for widget in self.query(HistoryView):
+            widget._refresh_lines()
+
     def _watch_dock_right(self) -> None:
         """React to the dock toggle being changed."""
         self.set_class(self.dock_right, "--dock-right")