1 files changed, 39 insertions, 0 deletions
diff --git a/src/prompt_toolkit/layout/dummy.py b/src/prompt_toolkit/layout/dummy.py
new file mode 100644
index 0000000..139f311
--- /dev/null
+++ b/src/prompt_toolkit/layout/dummy.py
@@ -0,0 +1,39 @@
+"""
+Dummy layout. Used when somebody creates an `Application` without specifying a
+`Layout`.
+"""
+from __future__ import annotations
+
+from prompt_toolkit.formatted_text import HTML
+from prompt_toolkit.key_binding import KeyBindings
+from prompt_toolkit.key_binding.key_processor import KeyPressEvent
+
+from .containers import Window
+from .controls import FormattedTextControl
+from .dimension import D
+from .layout import Layout
+
+__all__ = [
+    "create_dummy_layout",
+]
+
+E = KeyPressEvent
+
+
+def create_dummy_layout() -> Layout:
+    """
+    Create a dummy layout for use in an 'Application' that doesn't have a
+    layout specified. When ENTER is pressed, the application quits.
+    """
+    kb = KeyBindings()
+
+    @kb.add("enter")
+    def enter(event: E) -> None:
+        event.app.exit()
+
+    control = FormattedTextControl(
+        HTML("No layout specified. Press <reverse>ENTER</reverse> to quit."),
+        key_bindings=kb,
+    )
+    window = Window(content=control, height=D(min=1))
+    return Layout(container=window, focused_element=window)