Textualize/textual v0.37.0

The Commanding release

on GitHub

https://textual.textualize.io/blog/2023/09/15/textual-0370-adds-a-command-palette/

[0.37.0] - 2023-09-15

Added

• Added the command palette #3058
• Input is now validated when focus moves out of it #3193
• Attribute Input.validate_on (and __init__ parameter of the same name) to customise when validation occurs #3193
• Screen-specific (sub-)title attributes #3199:
  • Screen.TITLE
  • Screen.SUB_TITLE
  • Screen.title
  • Screen.sub_title
• Properties Header.screen_title and Header.screen_sub_title #3199
• Added DirectoryTree.DirectorySelected message #3200
• Added widgets.Collapsible contributed by Sunyoung Yoo #2989

Fixed

• Fixed a crash when removing an option from an OptionList while the mouse is hovering over the last option #3270
• Fixed a crash in MarkdownViewer when clicking on a link that contains an anchor #3094
• Fixed wrong message pump in pop_screen #3315

Changed

• Widget.notify and App.notify are now thread-safe #3275
• Breaking change: Widget.notify and App.notify now return None #3275
• App.unnotify is now private (renamed to App._unnotify) #3275
• Markdown.load will now attempt to scroll to a related heading if an anchor is provided #3244