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Implement cursor movement

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This commit is contained in:
Joscha 2022-06-14 23:24:09 +02:00
parent a1c714d116
commit fee405b573
5 changed files with 234 additions and 172 deletions
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35
cove-tui/src/store.rs
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@ -99,41 +99,6 @@ impl<M: Msg> Tree<M> {
None
}
}
pub fn prev_sibling(&self, id: &M::Id) -> Option<&M::Id> {
if let Some(siblings) = self.siblings(id) {
siblings
.iter()
.zip(siblings.iter().skip(1))
.find(|(_, s)| *s == id)
.map(|(s, _)| s)
} else {
None
}
}
pub fn next_sibling(&self, id: &M::Id) -> Option<&M::Id> {
if let Some(siblings) = self.siblings(id) {
siblings
.iter()
.zip(siblings.iter().skip(1))
.find(|(s, _)| *s == id)
.map(|(_, s)| s)
} else {
None
}
}
pub fn last_child(&self, mut id: M::Id) -> M::Id {
while let Some(children) = self.children(&id) {
if let Some(last_child) = children.last() {
id = last_child.clone();
} else {
break;
}
}
id
}
}
#[async_trait]