Textualize/textual v0.73.0 on GitHub

This is a rather large release. Lots of fixes and enhancements, including optimizations to the DataTable.

There's also a rather nifty addition to the ProgressBar widget. Checkout the gradient:

Screen.Recording.2024-07-18.at.14.17.05.mov

We've also polished the API docs, which should hopefully make them easier to navigate...

[0.73.0] - 2024-07-18

Added TextArea.line_number_start reactive attribute #4471
Added TextArea.matching_bracket_location property #4764
Added DOMNode.mutate_reactive #4731
Added "quality" parameter to textual.color.Gradient #4739
Added textual.color.Gradient.get_rich_color #4739
Widget.remove_children now accepts an iterable if widgets in addition to a selector #4735
Raise ValueError with improved error message when number of cells inserted using DataTable.add_row doesn't match the number of columns in the table #4742
Add Tree.move_cursor to programmatically move the cursor without selecting the node #4753
Added Footer component style handling of padding for the key/description #4651
StringKey is now exported from data_table #4760
TreeNode.add and TreeNode.add_leaf now accepts before and after arguments to position a new node #4772
Added a gradient parameter to the ProgressBar widget #4774

Fixed issue with Tabs where disabled tabs could still be activated by clicking the underline #4701
Fixed scroll_visible with margin #4719
Fixed programmatically disabling button stuck in hover state #4724
Fixed DataTable poor performance on startup and focus change when rows contain multi-line content #4748
Fixed Tree and DirectoryTree horizontal scrolling off-by-2 #4744
Fixed text-opacity in component styles #4747
Ensure Tree.select_node sends NodeSelected message #4753
Fixed message handlers not working when message types are assigned as the value of class vars #3940
Fixed CommandPalette not focusing the input when opened when App.AUTO_FOCUS doesn't match the input #4763
SelectionList.SelectionToggled will now be sent for each option when a bulk toggle is performed (e.g. toggle_all). Previously no messages were sent at all. #4759
Fixed focus styles not being updated on blur #4771

"Discover" hits in the command palette are no longer sorted alphabetically #4720
TreeNodeSelected messages are now posted before TreeNodeExpanded messages
when an expandable node is selected #4753
Markdown.LinkClicked.href is now automatically unquoted #4749
The mouse cursor hover effect of Tree and DirectoryTree will no longer linger after the mouse leaves the widget #4766