From 319e8aae5a41393dc412114edc74fe4b922313a5 Mon Sep 17 00:00:00 2001
From: Will McGugan <willmcgugan@gmail.com>
Date: Fri, 2 Aug 2024 10:31:17 +0100
Subject: [PATCH] fix slow UI

---
 CHANGELOG.md             | 8 ++++++++
 pyproject.toml           | 2 +-
 src/textual/scrollbar.py | 6 ++++--
 src/textual/widget.py    | 8 +++++---
 4 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 188d9c94d7..ea1c614dd6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,13 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+
+## [0.75.1] - 2024-08-02
+
+### Fixed
+
+- Fixed issue with Enter events causing unresponsive UI
+
 ## [0.75.0] - 2024-08-01
 
 ### Added
@@ -2250,6 +2257,7 @@ https://textual.textualize.io/blog/2022/11/08/version-040/#version-040
 - New handler system for messages that doesn't require inheritance
 - Improved traceback handling
 
+[0.75.1]: https://github.com/Textualize/textual/compare/v0.75.0...v0.75.1
 [0.75.0]: https://github.com/Textualize/textual/compare/v0.74.0...v0.75.0
 [0.74.0]: https://github.com/Textualize/textual/compare/v0.73.0...v0.74.0
 [0.73.0]: https://github.com/Textualize/textual/compare/v0.72.0...v0.73.0
diff --git a/pyproject.toml b/pyproject.toml
index 82c9eef6ba..24c4e924bd 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "textual"
-version = "0.75.0"
+version = "0.75.1"
 homepage = "https://github.com/Textualize/textual"
 repository = "https://github.com/Textualize/textual"
 documentation = "https://textual.textualize.io/"
diff --git a/src/textual/scrollbar.py b/src/textual/scrollbar.py
index 069b33f6ab..d5d8cc259a 100644
--- a/src/textual/scrollbar.py
+++ b/src/textual/scrollbar.py
@@ -304,10 +304,12 @@ def _on_hide(self, event: events.Hide) -> None:
             self.grabbed = None
 
     def _on_enter(self, event: events.Enter) -> None:
-        self.mouse_over = True
+        if event.node is self:
+            self.mouse_over = True
 
     def _on_leave(self, event: events.Leave) -> None:
-        self.mouse_over = False
+        if event.node is self:
+            self.mouse_over = False
 
     def action_scroll_down(self) -> None:
         """Scroll vertical scrollbars down, horizontal scrollbars right."""
diff --git a/src/textual/widget.py b/src/textual/widget.py
index 2d8592e4e3..ae3b042597 100644
--- a/src/textual/widget.py
+++ b/src/textual/widget.py
@@ -3848,11 +3848,13 @@ def _on_mount(self, event: events.Mount) -> None:
             self.show_horizontal_scrollbar = True
 
     def _on_leave(self, event: events.Leave) -> None:
-        self.mouse_hover = False
-        self.hover_style = Style()
+        if event.node is self:
+            self.mouse_hover = False
+            self.hover_style = Style()
 
     def _on_enter(self, event: events.Enter) -> None:
-        self.mouse_hover = True
+        if event.node is self:
+            self.mouse_hover = True
 
     def _on_focus(self, event: events.Focus) -> None:
         self.has_focus = True