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fix: refresh hover styles only when necessary #6603

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fix: refresh hover styles only when necessary #6603

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8 changes: 5 additions & 3 deletions src/textual/app.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3186,10 +3186,12 @@ def _set_mouse_over(

if hover_widget is not None:
hover_widget.mouse_hover = True
if hover_widget._has_hover_style:
# Only restyle when the hovered widget actually changed
if hover_widget is not current_hover_over:
if hover_widget is not None and hover_widget._has_hover_style:
hover_widget.update_node_styles()
if current_hover_over is not None and current_hover_over._has_hover_style:
current_hover_over.update_node_styles()
if current_hover_over is not None and current_hover_over._has_hover_style:
current_hover_over.update_node_styles()
self.hover_over = hover_widget

def _update_mouse_over(self, screen: Screen) -> None:
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