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Ensure hover effect doesnt linger when mouse leaves Tree #4766

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Jul 17, 2024
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Ensure hover effect doesnt linger when mouse leaves Tree #4766

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Ensure hover effect doesnt linger when mouse leaves Tree
darrenburns Jul 17, 2024
5bf00e3
Update CHANGELOG
darrenburns Jul 17, 2024
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Expand Up @@ -34,6 +34,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
- `TreeNodeSelected` messages are now posted before `TreeNodeExpanded` messages
when an expandable node is selected https://github.com/Textualize/textual/pull/4753
- `Markdown.LinkClicked.href` is now automatically unquoted https://github.com/Textualize/textual/pull/4749
- The mouse cursor hover effect of `Tree` and `DirectoryTree` will no longer linger after the mouse leaves the widget https://github.com/Textualize/textual/pull/4766


## [0.72.0] - 2024-07-09
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4 changes: 4 additions & 0 deletions src/textual/widgets/_tree.py
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Expand Up @@ -839,6 +839,10 @@ def _on_mouse_move(self, event: events.MouseMove) -> None:
else:
self.hover_line = -1

def _on_leave(self, _: events.Leave) -> None:
# Ensure the hover effect doesn't linger after the mouse leaves.
self.hover_line = -1

def _new_id(self) -> NodeID:
"""Create a new node ID.

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