read only cursor

Author: willmcgugan

CHANGELOG.md

@@ -17,6 +17,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - Widget.release_mouse will now only release the mouse, if it was captured by self https://github.com/Textualize/textual/pull/5900
 - Some optimizations to TextArea, which may be noticeable during scrolling (note: may break snapshots with a TextArea) https://github.com/Textualize/textual/pull/5925
 - Selecting in the TextArea now hides the cursor until you release the mouse https://github.com/Textualize/textual/pull/5925
+- Read only TextAreas will no longer display a cursor https://github.com/Textualize/textual/pull/5925
 
 ## Added
 

src/textual/widgets/_text_area.py

@@ -1157,6 +1157,7 @@ def render_line(self, y: int) -> Strip:
             self.match_cursor_bracket,
             self.soft_wrap,
             self.show_line_numbers,
+            self.read_only,
         )
         if (cached_line := self._line_cache.get(cache_key)) is not None:
             return cached_line
@@ -1278,6 +1279,7 @@ def _render_line(self, y: int) -> Strip:
                 self.has_focus
                 and not self.cursor_blink
                 or (self.cursor_blink and self._cursor_visible)
+                and not self.read_only
             )
             if draw_matched_brackets:
                 matching_bracket_style = theme.bracket_matching_style if theme else None