332 lines
9.8 KiB
Rust
332 lines
9.8 KiB
Rust
use core::time;
|
|
|
|
use fake::Fake;
|
|
use gpui::{
|
|
actions, div, px, relative, AnyElement, AppContext, ElementId, FocusHandle, FocusableView,
|
|
InteractiveElement, IntoElement, ParentElement, Render, RenderOnce, Styled, Task, Timer, View,
|
|
ViewContext, VisualContext, WindowContext,
|
|
};
|
|
|
|
use ui::{
|
|
h_flex,
|
|
label::Label,
|
|
list::{List, ListDelegate, ListItem},
|
|
theme::{hsl, ActiveTheme},
|
|
v_flex,
|
|
};
|
|
|
|
actions!(list_story, [SelectedCompany]);
|
|
|
|
#[derive(Clone)]
|
|
struct Company {
|
|
name: String,
|
|
industry: String,
|
|
last_done: f64,
|
|
prev_close: f64,
|
|
// description: String,
|
|
}
|
|
|
|
impl Company {
|
|
fn random_update(&mut self) {
|
|
self.last_done = self.prev_close * (1.0 + (-0.2..0.2).fake::<f64>());
|
|
}
|
|
|
|
fn change_percent(&self) -> f64 {
|
|
(self.last_done - self.prev_close) / self.prev_close
|
|
}
|
|
}
|
|
|
|
#[derive(IntoElement)]
|
|
struct CompanyListItem {
|
|
base: ListItem,
|
|
ix: usize,
|
|
company: Company,
|
|
selected: bool,
|
|
}
|
|
|
|
impl CompanyListItem {
|
|
pub fn new(id: impl Into<ElementId>, company: Company, ix: usize, selected: bool) -> Self {
|
|
CompanyListItem {
|
|
company,
|
|
ix,
|
|
base: ListItem::new(id),
|
|
selected,
|
|
}
|
|
}
|
|
}
|
|
|
|
impl RenderOnce for CompanyListItem {
|
|
fn render(self, cx: &mut WindowContext) -> impl IntoElement {
|
|
let text_color = if self.selected {
|
|
cx.theme().accent_foreground
|
|
} else {
|
|
cx.theme().foreground
|
|
};
|
|
|
|
let trend_color = match self.company.change_percent() {
|
|
change if change > 0.0 => hsl(0.0, 79.0, 53.0),
|
|
change if change < 0.0 => hsl(100.0, 79.0, 53.0),
|
|
_ => cx.theme().foreground,
|
|
};
|
|
|
|
let bg_color = if self.selected {
|
|
cx.theme().list_active
|
|
} else if self.ix % 2 == 0 {
|
|
cx.theme().list
|
|
} else {
|
|
cx.theme().list_even
|
|
};
|
|
|
|
self.base
|
|
.px_3()
|
|
.py_1()
|
|
.overflow_x_hidden()
|
|
.bg(bg_color)
|
|
.child(
|
|
h_flex()
|
|
.items_center()
|
|
.justify_between()
|
|
.gap_2()
|
|
.text_color(text_color)
|
|
.child(
|
|
v_flex()
|
|
.gap_1()
|
|
.max_w(px(500.))
|
|
.overflow_x_hidden()
|
|
.flex_nowrap()
|
|
.child(Label::new(self.company.name.clone()).whitespace_nowrap())
|
|
.child(
|
|
div().text_sm().overflow_x_hidden().child(
|
|
Label::new(self.company.industry.clone())
|
|
.whitespace_nowrap()
|
|
.text_color(text_color.opacity(0.5)),
|
|
),
|
|
),
|
|
)
|
|
.child(
|
|
h_flex()
|
|
.gap_2()
|
|
.items_center()
|
|
.justify_end()
|
|
.child(
|
|
div()
|
|
.w(px(65.))
|
|
.text_color(text_color)
|
|
.child(format!("{:.2}", self.company.last_done)),
|
|
)
|
|
.child(
|
|
h_flex().w(px(65.)).justify_end().child(
|
|
div()
|
|
.rounded_md()
|
|
.whitespace_nowrap()
|
|
.text_size(px(12.))
|
|
.px_1()
|
|
.text_color(trend_color)
|
|
.child(format!("{:.2}%", self.company.change_percent())),
|
|
),
|
|
),
|
|
),
|
|
)
|
|
}
|
|
}
|
|
|
|
struct CompanyListDelegate {
|
|
companies: Vec<Company>,
|
|
matched_companies: Vec<Company>,
|
|
selected_index: usize,
|
|
confirmed_index: Option<usize>,
|
|
}
|
|
|
|
impl ListDelegate for CompanyListDelegate {
|
|
type Item = CompanyListItem;
|
|
|
|
fn items_count(&self, _: &AppContext) -> usize {
|
|
self.matched_companies.len()
|
|
}
|
|
|
|
fn confirmed_index(&self, _: &AppContext) -> Option<usize> {
|
|
self.confirmed_index
|
|
}
|
|
|
|
fn perform_search(&mut self, query: &str, _: &mut ViewContext<List<Self>>) -> Task<()> {
|
|
self.matched_companies = self
|
|
.companies
|
|
.iter()
|
|
.filter(|company| company.name.to_lowercase().contains(&query.to_lowercase()))
|
|
.cloned()
|
|
.collect();
|
|
|
|
Task::Ready(Some(()))
|
|
}
|
|
|
|
fn confirm(&mut self, ix: Option<usize>, cx: &mut ViewContext<List<Self>>) {
|
|
self.confirmed_index = ix;
|
|
if let Some(_) = ix {
|
|
cx.dispatch_action(Box::new(SelectedCompany));
|
|
}
|
|
}
|
|
|
|
fn render_initial(&self, cx: &mut ViewContext<List<Self>>) -> Option<AnyElement> {
|
|
let histories = ["BABA", "BIDU", "GOOGL", "LB", "LP", "LBW"];
|
|
|
|
let input_history = histories
|
|
.into_iter()
|
|
.map(|name| {
|
|
div()
|
|
.rounded_xl()
|
|
.min_w(px(30.))
|
|
.border_1()
|
|
.rounded_md()
|
|
.border_color(cx.theme().muted_foreground.opacity(0.3))
|
|
.line_height(relative(1.))
|
|
.p_1()
|
|
.child(div().whitespace_nowrap().child(name).text_xs())
|
|
})
|
|
.collect::<Vec<_>>();
|
|
|
|
let element = v_flex()
|
|
.p_4()
|
|
.child(
|
|
v_flex().gap_y_2().child("History").child(
|
|
h_flex()
|
|
.gap_x_4()
|
|
.gap_y_2()
|
|
.flex_wrap()
|
|
.children(input_history),
|
|
),
|
|
)
|
|
.into_any_element();
|
|
Some(element)
|
|
}
|
|
|
|
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();
|
|
}
|
|
}
|
|
|
|
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;
|
|
if let Some(company) = self.matched_companies.get(ix) {
|
|
return Some(CompanyListItem::new(ix, company.clone(), ix, selected));
|
|
}
|
|
|
|
None
|
|
}
|
|
}
|
|
|
|
impl CompanyListDelegate {
|
|
fn selected_company(&self) -> Option<Company> {
|
|
self.companies.get(self.selected_index).cloned()
|
|
}
|
|
}
|
|
|
|
pub struct ListStory {
|
|
focus_handle: FocusHandle,
|
|
company_list: View<List<CompanyListDelegate>>,
|
|
selected_company: Option<Company>,
|
|
}
|
|
|
|
impl super::Story for ListStory {
|
|
fn title() -> &'static str {
|
|
"List"
|
|
}
|
|
|
|
fn description() -> &'static str {
|
|
"A list displays a series of items."
|
|
}
|
|
|
|
fn new_view(cx: &mut WindowContext) -> View<impl gpui::FocusableView> {
|
|
Self::view(cx)
|
|
}
|
|
}
|
|
|
|
impl ListStory {
|
|
pub fn view(cx: &mut WindowContext) -> View<Self> {
|
|
cx.new_view(Self::new)
|
|
}
|
|
|
|
fn new(cx: &mut ViewContext<Self>) -> Self {
|
|
let companies = (0..1_000)
|
|
.map(|_| random_company())
|
|
.collect::<Vec<Company>>();
|
|
|
|
let company_list = cx.new_view(|cx| {
|
|
List::new(
|
|
CompanyListDelegate {
|
|
matched_companies: companies.clone(),
|
|
companies,
|
|
selected_index: 0,
|
|
confirmed_index: None,
|
|
},
|
|
cx,
|
|
)
|
|
});
|
|
|
|
// Spawn a background to random refresh the list
|
|
cx.spawn(move |this, mut cx| async move {
|
|
loop {
|
|
Timer::after(time::Duration::from_secs_f64(0.5)).await;
|
|
this.update(&mut cx, |this, cx| {
|
|
this.company_list.update(cx, |picker, _| {
|
|
picker
|
|
.delegate_mut()
|
|
.companies
|
|
.iter_mut()
|
|
.for_each(|company| {
|
|
company.random_update();
|
|
});
|
|
});
|
|
cx.notify();
|
|
})
|
|
.ok();
|
|
}
|
|
})
|
|
.detach();
|
|
|
|
Self {
|
|
focus_handle: cx.focus_handle(),
|
|
company_list,
|
|
selected_company: None,
|
|
}
|
|
}
|
|
|
|
fn selected_company(&mut self, _: &SelectedCompany, cx: &mut ViewContext<Self>) {
|
|
let picker = self.company_list.read(cx);
|
|
if let Some(company) = picker.delegate().selected_company() {
|
|
self.selected_company = Some(company);
|
|
}
|
|
}
|
|
}
|
|
|
|
fn random_company() -> Company {
|
|
let last_done = (0.0..999.0).fake::<f64>();
|
|
let prev_close = last_done * (-0.1..0.1).fake::<f64>();
|
|
Company {
|
|
name: fake::faker::company::en::CompanyName().fake(),
|
|
industry: fake::faker::company::en::Industry().fake(),
|
|
last_done,
|
|
prev_close,
|
|
}
|
|
}
|
|
|
|
impl FocusableView for ListStory {
|
|
fn focus_handle(&self, _cx: &gpui::AppContext) -> FocusHandle {
|
|
self.focus_handle.clone()
|
|
}
|
|
}
|
|
|
|
impl Render for ListStory {
|
|
fn render(&mut self, cx: &mut ViewContext<Self>) -> impl IntoElement {
|
|
div()
|
|
.track_focus(&self.focus_handle)
|
|
.on_action(cx.listener(Self::selected_company))
|
|
.size_full()
|
|
.gap_4()
|
|
.border_1()
|
|
.border_color(cx.theme().border)
|
|
.rounded_md()
|
|
.child(self.company_list.clone())
|
|
}
|
|
}
|