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Fix tab focus when no widget is currently focused (#593)

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Olivier FAURE 2024-09-17 10:52:59 +02:00 committed by GitHub
parent 09d9ad555d
commit 7679e7c75e
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1 changed files with 24 additions and 22 deletions
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46
masonry/src/render_root.rs
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@ -548,31 +548,33 @@ impl RenderRoot {
}
pub(crate) fn widget_from_focus_chain(&mut self, forward: bool) -> Option<WidgetId> {
self.state.focused_widget.and_then(|focus| {
let focused_widget = self.state.focused_widget;
let focused_idx = focused_widget.and_then(|focused_widget| {
self.focus_chain()
.iter()
// Find where the focused widget is in the focus chain
.position(|id| id == &focus)
.map(|idx| {
// Return the id that's next to it in the focus chain
let len = self.focus_chain().len();
let new_idx = if forward {
(idx + 1) % len
} else {
(idx + len - 1) % len
};
self.focus_chain()[new_idx]
})
.or_else(|| {
// If the currently focused widget isn't in the focus chain,
// then we'll just return the first/last entry of the chain, if any.
if forward {
self.focus_chain().first().copied()
} else {
self.focus_chain().last().copied()
}
})
})
.position(|id| id == &focused_widget)
});
if let Some(idx) = focused_idx {
// Return the id that's next to it in the focus chain
let len = self.focus_chain().len();
let new_idx = if forward {
(idx + 1) % len
} else {
(idx + len - 1) % len
};
Some(self.focus_chain()[new_idx])
} else {
// If no widget is currently focused or the
// currently focused widget isn't in the focus chain,
// then we'll just return the first/last entry of the chain, if any.
if forward {
self.focus_chain().first().copied()
} else {
self.focus_chain().last().copied()
}
}
}
// TODO - Store in RenderRootState