dwui 0.10.0

UI Component library built on the DWIND style crate!
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129

use crate::theme::prelude::*;
use crate::utils::component_id;
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;

/// An accessible accordion / disclosure list.
///
/// Each `(title, content)` entry renders a header button with
/// `aria-expanded` and `aria-controls` pointing at its content region
/// (`role="region"`, `aria-labelledby` back at the header). Panels animate
/// open/closed with the CSS grid-rows technique. By default only one panel
/// is open at a time; set `allow_multiple` to keep panels independent.
#[component(render_fn = accordion)]
struct Accordion {
    #[signal_vec]
    #[default(vec![])]
    items: (String, Dom),

    #[default(false)]
    allow_multiple: bool,

    /// Index of the panel that starts open
    #[default(None)]
    initial_open: Option<usize>,
}

pub fn accordion(props: AccordionProps) -> Dom {
    let AccordionProps {
        items,
        allow_multiple,
        initial_open,
        apply,
    } = props;

    let open_items: Mutable<Vec<usize>> =
        Mutable::new(initial_open.map(|v| vec![v]).unwrap_or_default());

    html!("div", {
        .dwclass!("flex flex-col w-full")
        .dwclass!("border dwui-border-void-700 is(.light *):dwui-border-void-300 rounded-md overflow-hidden")
        .children_signal_vec(items.enumerate().map(clone!(open_items => move |(index, (title, content))| {
            let header_id = component_id("accordion-header");
            let panel_id = component_id("accordion-panel");

            let is_open = open_items
                .signal_cloned()
                .map(clone!(index => move |open| {
                    index.get().map(|i| open.contains(&i)).unwrap_or(false)
                }))
                .broadcast();

            html!("div", {
                .dwclass!("flex flex-col")
                .dwclass!("border-b dwui-border-void-700 is(.light *):dwui-border-void-300")
                .child(html!("button", {
                    .attr("type", "button")
                    .attr("id", &header_id)
                    .attr("aria-controls", &panel_id)
                    .attr_signal("aria-expanded", is_open.signal().map(|v| if v { "true" } else { "false" }))
                    .dwclass!("flex flex-row align-items-center justify-between gap-2 p-4 w-full cursor-pointer")
                    .dwclass!("bg-transparent border-none text-base font-medium text-left")
                    .dwclass!("dwui-text-on-primary-100 is(.light *):dwui-text-on-primary-900")
                    .dwclass!("hover:dwui-bg-void-800 is(.light *):hover:dwui-bg-void-200 transition-colors")
                    .dwclass!("dwui-focusable")
                    .child(html!("span", { .text(&title) }))
                    .child(html!("span", {
                        .dwclass!("flex-none inline-flex align-items-center")
                        .style("transition", "transform 200ms ease-out")
                        .style_signal("transform", is_open.signal().map(|v| {
                            if v { "rotate(180deg)" } else { "rotate(0deg)" }
                        }))
                        .child(svg!("svg", {
                            .attr("viewBox", "0 0 12 12")
                            .attr("width", "12")
                            .attr("height", "12")
                            .attr("fill", "none")
                            .attr("aria-hidden", "true")
                            .child(svg!("path", {
                                .attr("d", "M2 4 L6 8 L10 4")
                                .attr("stroke", "currentColor")
                                .attr("stroke-width", "1.5")
                                .attr("stroke-linecap", "round")
                                .attr("stroke-linejoin", "round")
                            }))
                        }))
                    }))
                    .event(clone!(open_items, index => move |_: events::Click| {
                        let Some(i) = index.get() else { return };

                        let mut open = open_items.get_cloned();

                        if let Some(pos) = open.iter().position(|v| *v == i) {
                            open.remove(pos);
                        } else if allow_multiple {
                            open.push(i);
                        } else {
                            open = vec![i];
                        }

                        open_items.set(open);
                    }))
                }))
                .child(html!("div", {
                    .style("display", "grid")
                    .style("transition", "grid-template-rows 200ms ease-out")
                    .style_signal("grid-template-rows", is_open.signal().map(|v| {
                        if v { "1fr" } else { "0fr" }
                    }))
                    .child(html!("div", {
                        .attr("id", &panel_id)
                        .attr("role", "region")
                        .attr("aria-labelledby", &header_id)
                        .attr_signal("aria-hidden", is_open.signal().map(|v| if v { None } else { Some("true") }))
                        .dwclass!("overflow-hidden")
                        .child(html!("div", {
                            .dwclass!("p-4 p-t-0 text-base")
                            .dwclass!("dwui-text-on-primary-300 is(.light *):dwui-text-on-primary-700")
                            .child(content)
                        }))
                    }))
                }))
            })
        })))
        .apply_if(apply.is_some(), |b| b.apply(apply.unwrap()))
    })
}