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list: Fix #552 broken move down to select first item. (#553)

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Jason Lee 2025-01-17 16:19:03 +08:00 committed by GitHub
parent f41edfd318
commit 4fa8b9d65c
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2 changed files with 23 additions and 14 deletions
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24
crates/story/src/list_story.rs
View file

@ -136,7 +136,7 @@ impl RenderOnce for CompanyListItem {
struct CompanyListDelegate {
companies: Vec<Company>,
matched_companies: Vec<Company>,
selected_index: usize,
selected_index: Option<usize>,
confirmed_index: Option<usize>,
query: String,
loading: bool,
@ -168,14 +168,12 @@ impl ListDelegate for CompanyListDelegate {
}
fn set_selected_index(&mut self, ix: Option<usize>, cx: &mut ViewContext<List<Self>>) {
if let Some(ix) = ix {
self.selected_index = ix;
cx.notify();
}
self.selected_index = ix;
cx.notify();
}
fn render_item(&self, ix: usize, _cx: &mut ViewContext<List<Self>>) -> Option<Self::Item> {
let selected = ix == self.selected_index || Some(ix) == self.confirmed_index;
let selected = Some(ix) == self.selected_index || Some(ix) == self.confirmed_index;
if let Some(company) = self.matched_companies.get(ix) {
return Some(CompanyListItem::new(ix, company.clone(), ix, selected));
}
@ -216,7 +214,11 @@ impl ListDelegate for CompanyListDelegate {
impl CompanyListDelegate {
fn selected_company(&self) -> Option<Company> {
self.companies.get(self.selected_index).cloned()
let Some(ix) = self.selected_index else {
return None;
};
self.companies.get(ix).cloned()
}
}
@ -254,7 +256,7 @@ impl ListStory {
let delegate = CompanyListDelegate {
matched_companies: companies.clone(),
companies,
selected_index: 3,
selected_index: None,
confirmed_index: None,
query: "".to_string(),
loading: false,
@ -262,9 +264,9 @@ impl ListStory {
};
let company_list = cx.new_view(|cx| List::new(delegate, cx));
company_list.update(cx, |list, cx| {
list.set_selected_index(Some(3), cx);
});
// company_list.update(cx, |list, cx| {
// list.set_selected_index(Some(3), cx);
// });
let _subscriptions =
vec![
cx.subscribe(&company_list, |_, _, ev: &ListEvent, _| match ev {

13
crates/ui/src/list/list.rs
View file

@ -405,12 +405,19 @@ where
return;
}
let mut selected_index = self.selected_index.unwrap_or(0);
if selected_index < items_count - 1 {
selected_index = selected_index + 1;
let selected_index;
if let Some(ix) = self.selected_index {
if ix < items_count - 1 {
selected_index = ix + 1;
} else {
// When the last item is selected, select the first item.
selected_index = 0;
}
} else {
// When no selected index, select the first item.
selected_index = 0;
}
self.select_item(selected_index, cx);
}