Refactor TUI exit keybinding: use Ctrl+D instead of double Ctrl+C

- Changed Ctrl+C to only copy selected text (does nothing if no selection)
- Added Ctrl+D for immediate exit without confirmation
- Removed double Ctrl+C to quit logic and quit-pending state
- Removed ESC to cancel quit logic
- Updated footer and success messages to reflect new keybindings
- Cleaned up unused CSS class for quit-pending state

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

Author: tjazerzen

tui/components.py

@@ -13,33 +13,17 @@
 class CustomFooter(Horizontal):
     """A custom footer with keyboard shortcuts and render ID."""
 
-    NORMAL_TEXT = "ctrl+c: quit/copy/  *  ctrl+l: toggle logs"
-    QUIT_PENDING_TEXT = "press ctrl+c again to quit  *  esc: cancel"
+    FOOTER_TEXT = "ctrl+c: copy  *  ctrl+d: quit  *  ctrl+l: toggle logs"
 
     def __init__(self, render_id: str = "", **kwargs):
         super().__init__(**kwargs)
         self.render_id = render_id
-        self._footer_text_widget: Optional[Static] = None
 
     def compose(self):
-        self._footer_text_widget = Static(self.NORMAL_TEXT, classes="custom-footer-text")
-        yield self._footer_text_widget
+        yield Static(self.FOOTER_TEXT, classes="custom-footer-text")
         if self.render_id:
             yield Static(f"render id: {self.render_id}", classes="custom-footer-render-id")
 
-    def update_quit_state(self, quit_pending: bool) -> None:
-        """Update footer text based on quit-pending state."""
-        if self._footer_text_widget is None:
-            return
-        if quit_pending:
-            self._footer_text_widget.update(self.QUIT_PENDING_TEXT)
-            self._footer_text_widget.remove_class("custom-footer-text")
-            self._footer_text_widget.add_class("custom-footer-quit-pending")
-        else:
-            self._footer_text_widget.update(self.NORMAL_TEXT)
-            self._footer_text_widget.remove_class("custom-footer-quit-pending")
-            self._footer_text_widget.add_class("custom-footer-text")
-
 
 class ScriptOutputType(str, Enum):
     UNIT_TEST_OUTPUT_TEXT = "Unit tests output: "

tui/plain2code_tui.py

@@ -6,7 +6,6 @@
 from textual.app import App, ComposeResult
 from textual.binding import Binding
 from textual.containers import Vertical, VerticalScroll
-from textual.css.query import NoMatches
 from textual.widgets import ContentSwitcher, Static
 from textual.worker import Worker, WorkerFailed, WorkerState
 
@@ -55,8 +54,8 @@ class Plain2CodeTUI(App):
     """A Textual TUI for plain2code."""
 
     BINDINGS = [
-        Binding("ctrl+c", "smart_quit", "Copy/Quit", show=False),
-        Binding("escape", "cancel_quit", "Cancel Quit", show=False),
+        Binding("ctrl+c", "copy_selection", "Copy", show=False),
+        Binding("ctrl+d", "quit", "Quit", show=False),
         ("ctrl+l", "toggle_logs", "Toggle Logs"),
     ]
 
@@ -80,7 +79,6 @@ def __init__(
         self.conformance_tests_script: Optional[str] = conformance_tests_script
         self.prepare_environment_script: Optional[str] = prepare_environment_script
         self.state_machine_version = state_machine_version
-        self._quit_pending = False
 
         # Initialize state handlers
         self._state_handlers: dict[str, StateHandler] = {
@@ -302,47 +300,17 @@ def ensure_exit():
         # daemon=True ensures this thread dies with the process if it exits before the timer fires
         threading.Thread(target=ensure_exit, daemon=True).start()
 
-    @property
-    def quit_pending(self) -> bool:
-        """Whether a quit confirmation is pending."""
-        return self._quit_pending
+    async def action_copy_selection(self) -> None:
+        """Handle ctrl+c: copy selected text if any.
 
-    async def action_smart_quit(self) -> None:
-        """Handle ctrl+c: copy selected text if any, otherwise quit.
-
-        Copy-first, quit-second design:
         - If text is selected -> copy it to clipboard
-        - If no text is selected -> enter quit-pending state
-        - If already in quit-pending state -> actually quit
-        - ESC cancels the quit confirmation
+        - If no text is selected -> do nothing
         """
         selected_text = self.screen.get_selected_text()
         if selected_text:
             self.copy_to_clipboard(selected_text)
             self.screen.clear_selection()
             self.notify("Copied to clipboard", timeout=2)
-            return
-
-        if self._quit_pending:
-            self.action_quit()
-            return
-
-        self._quit_pending = True
-        self._refresh_footer()
-
-    def action_cancel_quit(self) -> None:
-        """Cancel the quit confirmation when ESC is pressed."""
-        if self._quit_pending:
-            self._quit_pending = False
-            self._refresh_footer()
-
-    def _refresh_footer(self) -> None:
-        """Refresh the CustomFooter widget to reflect current quit-pending state."""
-        try:
-            footer = self.screen.query_one(CustomFooter)
-            footer.update_quit_state(self._quit_pending)
-        except NoMatches:
-            pass
 
     def action_quit(self) -> None:
         """Quit the application immediately.

tui/styles.css

@@ -399,11 +399,6 @@ CustomFooter {
   color: #888;
 }
 
-.custom-footer-quit-pending {
-  width: 1fr;
-  color: #E0FF6E;
-}
-
 .custom-footer-render-id {
   width: auto;
   color: #888;

tui/widget_helpers.py

@@ -105,7 +105,7 @@ def display_success_message(tui, rendered_code_path: str):
         rendered_code_path: The path to the rendered code
     """
 
-    message = f"[#79FC96]✓ Rendering finished![/#79FC96] [#888888](ctrl+c to exit)[/#888888]\n[#888888]Generated code: {rendered_code_path}[/#888888] "
+    message = f"[#79FC96]✓ Rendering finished![/#79FC96] [#888888](ctrl+d to exit)[/#888888]\n[#888888]Generated code: {rendered_code_path}[/#888888] "
 
     widget: Static = tui.query_one(f"#{TUIComponents.RENDER_STATUS_WIDGET.value}", Static)
     widget.update(message)