The focused release

Lots of refinements and enhancements here!

[0.53.0] - 2023-03-18

Added

• Mapping of ANSI colors to hex codes configurable via App.ansi_theme_dark and App.ansi_theme_light #4192
• Pilot.resize_terminal to resize the terminal in testing #4212
• Added sort_children method #4244
• Support for pseudo-classes in nested TCSS #4039

Fixed

• Fixed TextArea.code_editor missing recently added attributes #4172
• Fixed Sparkline not working with data in a deque #3899
• Tooltips are now cleared when the related widget is no longer under them #3045
• Simplified tree-sitter highlight queries for HTML, which also seems to fix segfault issue #4195
• Fixed DirectoryTree.path no longer reacting to new values #4208
• Fixed content size cache with Pretty widget #4211
• Fixed grid-gutter interaction with Pretty widget #4219
• Fixed TextArea styling issue on alternate screens #4220
• Fixed writing to invisible RichLog #4223
• Fixed RichLog.min_width not being used #4223
• Rename CollapsibleTitle.action_toggle to action_toggle_collapsible to fix clash with DOMNode.action_toggle #4221
• Markdown component classes weren't refreshed when watching for CSS #3464
• Rename Switch.action_toggle to action_toggle_switch to fix clash with DOMNode.action_toggle #4262
• Fixed OptionList.OptionHighlighted leaking out of Select #4224
• Fixed Tab enable/disable messages leaking into TabbedContent #4233
• Fixed a style leak from TabbedContent #4232
• Fixed active hidden scrollbars not releasing the mouse #4274
• Fixed the mouse not being released when hiding a TextArea while mouse selection is happening #4292
• Fix mouse scrolling not working when mouse cursor is over a disabled child widget #4242

Changed

• Clicking a non focusable widget focus ancestors #4236
• BREAKING: widget class names must start with a capital letter or an underscore _ #4252
• BREAKING: for many widgets, messages are now sent when programmatic changes that mirror user input are made #4256
  • Changed Collapsible
  • Changed Markdown
  • Changed Select
  • Changed SelectionList
  • Changed TabbedContent
  • Changed Tabs
  • Changed TextArea
  • Changed Tree
• Improved ETA calculation for ProgressBar #4271
• BREAKING: AppFocus and AppBlur are now posted when the terminal window gains or loses focus, if the terminal supports this #4265
  • When the terminal window loses focus, the currently-focused widget will also lose focus.
  • When the terminal window regains focus, the previously-focused widget will regain focus.
• TextArea binding for ctrl+k will now delete the line if the line is empty #4277
• The active tab (in Tabs) / tab pane (in TabbedContent) can now be unset #4241

The sin tax release

Fixes a SyntaxWarning

[0.52.1] - 2024-02-20

Fixed

• Fixed the check for animation level in LoadingIndicator #4188

The Envy release

A few modest changes, with a focus on env vars for some reason.

[0.52.0] - 2024-02-19

Changed

• Textual now writes to stderr rather than stdout #4177

Added

• Added an asyncio lock attribute Widget.lock to be used to synchronize widget state #4134
• Added support for environment variable TEXTUAL_ANIMATIONS to control what animations Textual displays #4062
• Add attribute App.animation_level to control whether animations on that app run or not #4062
• Added support for a TEXTUAL_SCREENSHOT_LOCATION environment variable to specify the location of an automated screenshot #4181
• Added support for a TEXTUAL_SCREENSHOT_FILENAME environment variable to specify the filename of an automated screenshot #4181
• Added an asyncio lock attribute Widget.lock to be used to synchronize widget state #4134
• Widget.remove_children now accepts a CSS selector to specify which children to remove #4183
• Widget.batch combines widget locking and app update batching #4183

The American friends release

Mostly fixes in this updated.

Note the breaking change below...

[0.51.0] - 2024-02-15

Added

• TextArea now has read_only mode #4151
• Add some syntax highlighting to TextArea default theme #4149
• Add undo and redo to TextArea #4124
• Added support for command palette command discoverability #4154

Fixed

• Fixed out-of-view Tab not being scrolled into view when Tabs.active is assigned #4150
• Fixed TabbedContent.TabActivate not being posted when TabbedContent.active is assigned #4150

Changed

• Breaking change: Renamed TextArea.tab_behaviour to TextArea.tab_behavior #4124
• TextArea.theme now defaults to "css" instead of None, and is no longer optional #4157

The tiny tint release

[0.50.1] - 2024-02-09

Fixed

• Fixed tint applied to ANSI colors #4142

The half a century release

A relatively small release for the benefit of an app we are going to release soon.

[0.50.0] - 2024-02-08

Fixed

• Fixed issue with ANSI colors not being converted to truecolor #4138
• Fixed duplicate watch methods being attached to DOM nodes #4030
• Fixed using watch to create additional watchers would trigger other watch methods #3878

Added

• Added support for configuring dark and light themes for code in Markdown #3997

The one release to bind them all release

This release adds data binding, which can help you write lean code. There are also a few new methods, fixes, and enhancements. See below for the full details...

[0.49.0] - 2024-02-07

Fixed

• Fixed scrolling in long OptionList by adding max height of 100% #4021
• Fixed DirectoryTree.clear_node not clearing the node specified #4122

Changed

• DirectoryTree.reload and DirectoryTree.reload_node now preserve state when reloading #4056
• Fixed a crash in the TextArea when performing a backward replace #4126
• Fixed selection not updating correctly when pasting while there's a non-zero selection #4126
• Breaking change: TextArea will not use Escape to shift focus if the tab_behaviour is the default #4110
• TextArea cursor will now be invisible before first focus #4128
• Fix toggling TextArea.cursor_blink reactive when widget does not have focus #4128

Added

• Added DOMQuery.set #4075
• Added DOMNode.set_reactive #4075
• Added DOMNode.data_bind #4075
• Added DOMNode.action_toggle #4075
• Added Worker.cancelled_event #4075
• Tree (and DirectoryTree) grew an attribute lock that can be used for synchronization across coroutines #4056

The "truly your forgiveness I implore" release.

Hotfix for two issues.

[0.48.2] - 2024-02-02

Fixed

• Fixed a hang in the Linux driver when connected to a pipe #4104
• Fixed broken OptionList Option.id mappings #4101

Changed

• Breaking change: keyboard navigation in RadioSet, ListView, OptionList, and SelectionList, no longer allows highlighting disabled items #3881

The nevermore bug release

A small oversight with the TextArea theme

[0.48.1] - 2023-02-01

Fixed

• TextArea uses CSS theme by default instead of monokai #4091

The "As of some one gently wrapping, wrapping at my chamber door" release.

The highlight of this release is the addition of soft wrapping to the TextArea, which you can see below:

soft-wrapping-demo.mp4

This makes TextArea one of our most powerful widgets. Looking forward to seeing what you build with it!

Note there is a breaking change here. The TextArea now defaults to a multi-line soft-wrapped editor rather than a more code oriented editor. If you want the original behaviour, use the code_editor classmethod. i.e. replace TextArea with TextArea.code_editor.

Also in this release is a new suspend decorator which will temporarily suspend the currently running app and allow you to launch another terminal app (which doesn't even need to be a Textual app).

There are plenty of other fixes and enhancements. See below for the full details...

[0.48.0] - 2023-02-01

Changed

• Breaking change: Significant changes to TextArea.__init__ default values/behaviour #3933
  • soft_wrap=True - soft wrapping is now enabled by default.
  • show_line_numbers=False - line numbers are now disabled by default.
  • tab_behaviour="focus" - pressing the tab key now switches focus instead of indenting by default.
• Breaking change: TextArea default theme changed to CSS, and default styling changed #4074
• Breaking change: DOMNode.has_pseudo_class now accepts a single name only #3970
• Made textual.cache (formerly textual._cache) public #3976
• Tab.label can now be used to change the label of a tab #3979
• Changed the default notification timeout from 3 to 5 seconds #4059
• Prior scroll animations are now cancelled on new scrolls #4081

Added

• Added DOMNode.has_pseudo_classes #3970
• Added Widget.allow_focus and Widget.allow_focus_children #3989
• Added TextArea.soft_wrap reactive attribute added #3933
• Added TextArea.tab_behaviour reactive attribute added #3933
• Added TextArea.code_editor classmethod/alternative constructor #3933
• Added TextArea.wrapped_document attribute which can convert between wrapped visual coordinates and locations #3933
• Added show_line_numbers to TextArea.__init__ #3933
• Added component classes allowing TextArea to be styled using CSS #4074
• Added Query.blur and Query.focus #4012
• Added MessagePump.message_queue_size #4012
• Added TabbedContent.active_pane #4012
• Added App.suspend #4064
• Added App.action_suspend_process #4064

Fixed

• Parameter animate from DataTable.move_cursor was being ignored #3840
• Fixed a crash if DirectoryTree.show_root was set before the DOM was fully available #2363
• Live reloading of TCSS wouldn't apply CSS changes to screens under the top screen of the stack #3931
• SelectionList option IDs are usable as soon as the widget is instantiated #3903
• Fix issue with Strip.crop when crop window start aligned with strip end #3998
• Fixed Strip.crop_extend #4011
• Fix for percentage dimensions #4037
• Fixed a crash if the TextArea language was set but tree-sitter language binaries were not installed #4045
• Ensuring TextArea.SelectionChanged message only sends when the updated selection is different #3933
• Fixed declaration after nested rule set causing a parse error #4012
• ID and class validation was too lenient #3954
• Fixed CSS watcher crash if file becomes unreadable (even temporarily) #4079
• Fixed display of keys when used in conjunction with other keys #3050
• Fixed double detection of Escape on Windows #4038