Merge pull request #6080 from TomJGooding/fix-garbled-inline-output

fix(app): fix garbled inline app output

Author: willmcgugan

CHANGELOG.md

@@ -13,6 +13,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - Fixed `Content.expand_tabs` https://github.com/Textualize/textual/pull/6038
 - Fixed return value for `Pilot.double_click` and `Pilot.triple_click` https://github.com/Textualize/textual/pull/6035
 - Fixed sizing issue with `Pretty` widget https://github.com/Textualize/textual/pull/6040 https://github.com/Textualize/textual/pull/6041
+- Fixed garbled inline app output when `inline_no_clear=True` https://github.com/Textualize/textual/pull/6080
 
 ### Added
 

src/textual/app.py

@@ -3320,8 +3320,9 @@ async def invoke_ready_callback() -> None:
                         if self._driver.is_inline:
                             cursor_x, cursor_y = self._previous_cursor_position
                             self._driver.write(
-                                Control.move(-cursor_x, -cursor_y + 1).segment.text
+                                Control.move(-cursor_x, -cursor_y).segment.text
                             )
+                            self._driver.flush()
                             if inline_no_clear and not self.app._exit_renderables:
                                 console = Console()
                                 try:
@@ -3330,9 +3331,7 @@ async def invoke_ready_callback() -> None:
                                     console.print()
                             else:
                                 self._driver.write(
-                                    Control.move(
-                                        -cursor_x, -self.INLINE_PADDING - 1
-                                    ).segment.text
+                                    Control.move(0, -self.INLINE_PADDING).segment.text
                                 )
 
                         driver.stop_application_mode()