docs update

docs/examples/light_dark.py

@@ -0,0 +1,18 @@
+from textual.app import App
+from textual.widgets import Button
+
+
+class ButtonApp(App):
+    CSS = """
+    Button {
+        width: 100%;
+    }
+    """
+
+    def compose(self):
+        yield Button("Light", id="light")
+        yield Button("Dark", id="dark")
+
+    def handle_pressed(self, event):
+        self.dark = event.button.id == "dark"
+

src/textual/app.py

@@ -675,6 +675,10 @@ class App(Generic[ReturnType], DOMNode):
             error (Exception): An exception instance.
         """
 
+        if "tb" in self.features:
+            self.fatal_error()
+            return
+
         if hasattr(error, "__rich__"):
             # Exception has a rich method, so we can defer to that for the rendering
             self.panic(error)
@@ -736,8 +740,8 @@ class App(Generic[ReturnType], DOMNode):
 
             driver = self._driver = self.driver_class(self.console, self)
             driver.start_application_mode()
-            with redirect_stdout(StdoutRedirector(self.devtools, self._log_file)):  # type: ignore
-                try:
+            try:
+                with redirect_stdout(StdoutRedirector(self.devtools, self._log_file)):  # type: ignore
                     mount_event = events.Mount(sender=self)
                     await self.dispatch_message(mount_event)
 
@@ -749,8 +753,8 @@ class App(Generic[ReturnType], DOMNode):
                     await super().process_messages()
                     await self.animator.stop()
                     await self.close_all()
-                finally:
-                    driver.stop_application_mode()
+            finally:
+                driver.stop_application_mode()
         except Exception as error:
             self.on_exception(error)
         finally:
@@ -886,7 +890,7 @@ class App(Generic[ReturnType], DOMNode):
         stylesheet.set_variables(self.get_css_variables())
         stylesheet.reparse()
         stylesheet.update(self.app, animate=animate)
-        self.refresh(layout=True)
+        self.screen._refresh_layout(self.size, full=True)
 
     def _display(self, renderable: RenderableType | None) -> None:
         """Display a renderable within a sync.

src/textual/drivers/linux_driver.py

@@ -160,10 +160,10 @@ class LinuxDriver(Driver):
             if not self.exit_event.is_set():
                 signal.signal(signal.SIGWINCH, signal.SIG_DFL)
                 self._disable_mouse_support()
-                termios.tcflush(self.fileno, termios.TCIFLUSH)
                 self.exit_event.set()
                 if self._key_thread is not None:
                     self._key_thread.join()
+                termios.tcflush(self.fileno, termios.TCIFLUSH)
         except Exception as error:
             # TODO: log this
             pass
@@ -194,6 +194,8 @@ class LinuxDriver(Driver):
 
         fileno = self.fileno
 
+        print(1)
+
         def more_data() -> bool:
             """Check if there is more data to parse."""
             for key, events in selector.select(0.01):
@@ -201,24 +203,32 @@ class LinuxDriver(Driver):
                     return True
             return False
 
+        print(2)
         parser = XTermParser(self._target, more_data, self._debug)
         feed = parser.feed
 
         utf8_decoder = getincrementaldecoder("utf-8")().decode
         decode = utf8_decoder
         read = os.read
-
+        print(3)
         EVENT_READ = selectors.EVENT_READ
 
         try:
+            print(4)
             while not self.exit_event.is_set():
+                print(5)
                 selector_events = selector.select(0.1)
+                print(6)
                 for _selector_key, mask in selector_events:
+                    print(7)
                     if mask | EVENT_READ:
+                        print(8)
                         unicode_data = decode(read(fileno, 1024))
+                        print(9)
                         for event in feed(unicode_data):
                             self.process_event(event)
         except Exception as error:
+            print(10)
             log(error)
         finally:
             with timer("selector.close"):

src/textual/screen.py

@@ -31,6 +31,8 @@ class Screen(Widget):
 
     CSS = """
     Screen {
+        background: $surface;
+        color: $text-surface;
         layout: vertical;
         overflow-y: auto;
     }

src/textual/widgets/_button.py

@@ -20,12 +20,12 @@ class Button(Widget, can_focus=True):
     Button {
         width: auto;
         height: 3;
-        padding: 0 2;
         background: $primary;
         color: $text-primary;
         content-align: center middle;
         border: tall $primary-lighten-3;
         margin: 1 0;
+        align: center middle;
         text-style: bold;
     }