fix key

examples/markdown.py

@@ -15,7 +15,6 @@ class MarkdownApp(App):
         ("t", "toggle_table_of_contents", "TOC"),
         ("b", "back", "Back"),
         ("f", "forward", "Forward"),
-        ("ctrl+d", "app.bell", "Bell"),
     ]
 
     path = var(Path(__file__).parent / "demo.md")

src/textual/app.py

@@ -2282,7 +2282,7 @@ async def check_mouse() -> None:
                 if widget is not self.mouse_over:
                     self._set_mouse_over(widget)
 
-        self.call_later(check_mouse)
+        self.call_after_refresh(check_mouse)
 
     def capture_mouse(self, widget: Widget | None) -> None:
         """Send all mouse events to the given widget or disable mouse capture.

src/textual/widgets/_footer.py

@@ -58,9 +58,15 @@ class FooterKey(Widget):
     compact = reactive(True)
 
     def __init__(
-        self, key: str, description: str, action: str, disabled: bool = False
+        self,
+        key: str,
+        key_display: str,
+        description: str,
+        action: str,
+        disabled: bool = False,
     ) -> None:
         self.key = key
+        self.key_display = key_display
         self.description = description
         self.action = action
         self._disabled = disabled
@@ -69,24 +75,24 @@ def __init__(
     def render(self) -> Text:
         key_style = self.get_component_rich_style("footer-key--key")
         description_style = self.get_component_rich_style("footer-key--description")
-        key = self.key
+        key_display = self.key_display
         if self.upper_case_keys:
-            key = key.upper()
-        if key.lower().startswith("ctrl+"):
-            key = "^" + key.split("+", 1)[1]
+            key_display = key_display.upper()
+        if key_display.lower().startswith("ctrl+"):
+            key_display = "^" + key_display.split("+", 1)[1]
         description = self.description
         if self.compact:
             label_text = Text.assemble(
-                (key, key_style), " ", (description, description_style)
+                (key_display, key_style), " ", (description, description_style)
             )
         else:
             label_text = Text.assemble(
-                (f" {key} ", key_style), (description, description_style), " "
+                (f" {key_display} ", key_style), (description, description_style), " "
             )
         label_text.stylize_before(self.rich_style)
         return label_text
 
-    async def on_mouse_up(self) -> None:
+    async def on_mouse_down(self) -> None:
         if self._disabled:
             self.app.bell()
         else:
@@ -129,6 +135,7 @@ def compose(self) -> ComposeResult:
         self.styles.grid_size_columns = len(bindings)
         for binding, enabled in bindings:
             yield FooterKey(
+                binding.key,
                 binding.key_display or self.app.get_key_display(binding.key),
                 binding.description,
                 binding.action,