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use crate::theme::prelude::*;
use dominator::{clone, events, html, svg, Dom};
use dwind::prelude::*;
use futures_signals::signal::{Mutable, SignalExt};
use futures_signals::signal_vec::SignalVecExt;
use futures_signals_component_macro::component;
use std::rc::Rc;
#[derive(Copy, Clone, Eq, PartialEq, Debug)]
pub enum SortDirection {
Ascending,
Descending,
}
impl SortDirection {
pub fn toggled(self) -> Self {
match self {
SortDirection::Ascending => SortDirection::Descending,
SortDirection::Descending => SortDirection::Ascending,
}
}
}
/// A column definition for [`data_table`]
#[derive(Clone, Eq, PartialEq, Debug)]
pub struct TableColumn {
/// Stable key identifying the column in sort callbacks
pub key: String,
/// Header label
pub label: String,
/// Whether the header offers sorting
pub sortable: bool,
}
impl TableColumn {
pub fn new(key: impl Into<String>, label: impl Into<String>, sortable: bool) -> Self {
Self {
key: key.into(),
label: label.into(),
sortable,
}
}
}
/// A themed data table with sortable column headers.
///
/// Sorting is controlled: clicking a sortable header invokes `on_sort` with
/// the column key and the requested direction, and the current order is
/// reflected back through the `sorted_by` signal (exposed to assistive
/// technology via `aria-sort`). Rows are `(id, cells)` pairs; clicking a row
/// invokes `on_row_click` with its id.
#[component(render_fn = data_table)]
struct DataTable {
#[signal_vec]
#[default(vec![])]
columns: TableColumn,
#[signal_vec]
#[default(vec![])]
rows: (String, Vec<Dom>),
#[signal]
#[default(None)]
sorted_by: Option<(String, SortDirection)>,
#[default(Box::new(|_, _| {}))]
on_sort: dyn Fn(String, SortDirection) + 'static,
#[default(Box::new(|_| {}))]
on_row_click: dyn Fn(String) + 'static,
/// Set when row clicks are meaningful; adds hover/cursor affordances
#[default(false)]
rows_clickable: bool,
}
pub fn data_table(props: DataTableProps) -> Dom {
let DataTableProps {
columns,
rows,
sorted_by,
on_sort,
on_row_click,
rows_clickable,
apply,
} = props;
let on_sort = Rc::new(on_sort);
let on_row_click = Rc::new(on_row_click);
let sorted_by = sorted_by.broadcast();
let sorted_state: Mutable<Option<(String, SortDirection)>> = Mutable::new(None);
html!("div", {
.future(sorted_by.signal_cloned().for_each(clone!(sorted_state => move |v| {
sorted_state.set(v);
async {}
})))
.dwclass!("rounded-lg border overflow-x-auto w-full")
.dwclass!("dwui-border-void-700 is(.light *):dwui-border-void-300")
.dwclass!("dwui-bg-void-900 is(.light *):dwui-bg-void-100")
.apply_if(apply.is_some(), |b| b.apply(apply.unwrap()))
.child(html!("table", {
.dwclass!("w-full text-sm text-left border-collapse")
.child(html!("thead", {
.child(html!("tr", {
.dwclass!("border-b dwui-border-void-700 is(.light *):dwui-border-void-300")
.children_signal_vec(columns.map(clone!(sorted_by, sorted_state, on_sort => move |column| {
let column_sort = sorted_by
.signal_cloned()
.map(clone!(column => move |sorted| {
sorted.and_then(|(key, direction)| {
(key == column.key).then_some(direction)
})
}))
.broadcast();
html!("th", {
.attr("scope", "col")
.attr_signal("aria-sort", column_sort.signal().map(|direction| {
direction.map(|direction| match direction {
SortDirection::Ascending => "ascending",
SortDirection::Descending => "descending",
})
}))
.dwclass!("p-0")
.apply(clone!(column, on_sort, sorted_state => move |b| {
if column.sortable {
b.child(html!("button", {
.attr("type", "button")
.dwclass!("flex flex-row align-items-center gap-1 w-full p-3 cursor-pointer text-left")
.dwclass!("bg-transparent border-none font-bold text-sm")
.dwclass!("dwui-text-on-primary-200 hover:dwui-text-primary-300")
.dwclass!("is(.light *):dwui-text-on-primary-800 is(.light *):hover:dwui-text-primary-700")
.dwclass!("transition-colors focus-visible:ring-2 focus-visible:dwui-ring-primary-400")
.style("outline", "none")
.child(html!("span", { .text(&column.label) }))
.child(html!("span", {
.dwclass!("inline-flex align-items-center")
.style_signal("opacity", column_sort.signal().map(|direction| {
if direction.is_some() { "1" } else { "0.4" }
}))
.child(svg!("svg", {
.attr("viewBox", "0 0 10 12")
.attr("width", "10")
.attr("height", "12")
.attr("fill", "none")
.attr("aria-hidden", "true")
.child(svg!("path", {
.attr_signal("d", column_sort.signal().map(|direction| {
match direction {
Some(SortDirection::Ascending) => "M5 2 L5 10 M2 5 L5 2 L8 5",
Some(SortDirection::Descending) => "M5 2 L5 10 M2 7 L5 10 L8 7",
None => "M5 1 L5 5 M3 3 L5 1 L7 3 M5 7 L5 11 M3 9 L5 11 L7 9",
}
}))
.attr("stroke", "currentColor")
.attr("stroke-width", "1.2")
.attr("stroke-linecap", "round")
.attr("stroke-linejoin", "round")
}))
}))
}))
.event(clone!(on_sort, column, sorted_state => move |_: events::Click| {
let next = sorted_state
.get_cloned()
.and_then(|(key, direction)| {
(key == column.key).then(|| direction.toggled())
})
.unwrap_or(SortDirection::Ascending);
(on_sort)(column.key.clone(), next);
}))
}))
} else {
b.child(html!("div", {
.dwclass!("p-3 font-bold")
.dwclass!("dwui-text-on-primary-200 is(.light *):dwui-text-on-primary-800")
.text(&column.label)
}))
}
}))
})
})))
}))
}))
.child(html!("tbody", {
.children_signal_vec(rows.map(clone!(on_row_click => move |(row_id, cells)| {
html!("tr", {
.dwclass!("border-b dwui-border-void-800 is(.light *):dwui-border-void-200 transition-colors")
.dwclass!("hover:dwui-bg-void-800 is(.light *):hover:dwui-bg-void-200")
.apply_if(rows_clickable, clone!(on_row_click, row_id => move |b| {
dwclass!(b, "cursor-pointer")
.event(clone!(on_row_click, row_id => move |_: events::Click| {
(on_row_click)(row_id.clone());
}))
}))
.children(cells.into_iter().map(|cell| {
html!("td", {
.dwclass!("p-3")
.dwclass!("dwui-text-on-primary-300 is(.light *):dwui-text-on-primary-700")
.child(cell)
})
}))
})
})))
}))
}))
})
}