✨ Helper code for Textualize/textual#2854

remove_on_timer.py

@@ -0,0 +1,36 @@
+"""https://github.com/Textualize/textual/issues/2854"""
+
+from textual import on
+from textual.app import App, ComposeResult
+from textual.containers import Vertical, VerticalScroll
+from textual.widgets import Button, Label
+
+class SelfRemovingLabel(Label):
+
+    def on_mount(self) -> None:
+        self.set_timer(2, self.remove)
+
+class RemoveOnTimerApp(App[None]):
+
+    CSS = """
+    Label {
+        margin-bottom: 1;
+        width: 1fr;
+        border: solid $warning;
+        background: $warning 20%;
+    }
+    """
+
+    def compose(self) -> ComposeResult:
+        with Vertical():
+            yield Button("Add self-removing label")
+            yield VerticalScroll()
+
+    @on(Button.Pressed)
+    def add_ephemeral_label(self):
+        self.query_one(VerticalScroll).mount(SelfRemovingLabel("I will remove myself!"))
+
+if __name__ == "__main__":
+    RemoveOnTimerApp().run()
+
+### remove_on_timer.py ends here