skip copy in input/textarea if there is nothing to copy

Author: willmcgugan

src/textual/widgets/_input.py

@@ -11,6 +11,7 @@
 from typing_extensions import Literal
 
 from textual import events
+from textual.actions import SkipAction
 from textual.expand_tabs import expand_tabs_inline
 from textual.screen import Screen
 from textual.scroll_view import ScrollView
@@ -1106,7 +1107,11 @@ def action_cut(self) -> None:
 
     def action_copy(self) -> None:
         """Copy the current selection to the clipboard."""
-        self.app.copy_to_clipboard(self.selected_text)
+        selected_text = self.selected_text
+        if selected_text:
+            self.app.copy_to_clipboard(selected_text)
+        else:
+            raise SkipAction()
 
     def action_paste(self) -> None:
         """Paste from the local clipboard."""

src/textual/widgets/_text_area.py

@@ -16,6 +16,7 @@
 
 from textual._text_area_theme import TextAreaTheme
 from textual._tree_sitter import TREE_SITTER, get_language
+from textual.actions import SkipAction
 from textual.cache import LRUCache
 from textual.color import Color
 from textual.content import Content
@@ -2513,6 +2514,8 @@ def action_copy(self) -> None:
         selected_text = self.selected_text
         if selected_text:
             self.app.copy_to_clipboard(selected_text)
+        else:
+            raise SkipAction()
 
     def action_paste(self) -> None:
         """Paste from local clipboard."""