orbital-base-components 0.1.1

Headless base primitives for Orbital — structure, semantics, and accessibility
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
130
131
132
133
134
135
136
137
138
139
140
141

use leptos::{context::Provider, ev, prelude::*};

use crate::form::bind::FormBind;
use crate::form::field_injection::FieldInjection;

#[derive(Clone, Copy)]
pub(crate) struct SliderInjection {
    pub max: Signal<f64>,
    pub min: Signal<f64>,
    pub vertical: Signal<bool>,
}

impl SliderInjection {
    pub fn expect_context() -> Self {
        expect_context()
    }
}

/// Headless native `<input type="range">` with optional label markers.
#[component(transparent)]
pub fn BaseSlider(
    #[prop(optional, into)] class: MaybeProp<String>,
    #[prop(optional, into)] style: MaybeProp<String>,
    #[prop(optional, into)] id: MaybeProp<String>,
    #[prop(optional, into)] name: MaybeProp<String>,
    #[prop(optional, into)] value: FormBind<f64>,
    #[prop(default = 0.0.into(), into)] min: Signal<f64>,
    #[prop(default = 100.0.into(), into)] max: Signal<f64>,
    #[prop(optional, into)] step: MaybeProp<f64>,
    #[prop(default = true.into(), into)] show_stops: Signal<bool>,
    #[prop(optional, into)] vertical: Signal<bool>,
    #[prop(optional)] children: Option<Children>,
) -> impl IntoView {
    let (id, name) = FieldInjection::use_id_and_name(id, name);
    let has_labels = children.is_some();

    let current_value_value = value.clone();
    let current_value = Memo::new(move |_| {
        let max = max.get();
        let min = min.get();
        let v = current_value_value.get();
        if v > max {
            max
        } else if v < min {
            min
        } else {
            v
        }
    });

    let on_input_value = value.clone();
    let on_input = move |e: ev::Event| {
        if let Ok(range_value) = event_target_value(&e).parse::<f64>() {
            on_input_value.set(range_value);
        }
    };

    let css_vars = move || {
        let max = max.get();
        let min = min.get();
        let mut css_vars = format!(
            "--orbital-slider--progress: {:.2}%;",
            if max == min {
                0.0
            } else {
                (current_value.get() - min) / (max - min) * 100.0
            }
        );

        if vertical.get() {
            css_vars.push_str("--orbital-slider--direction: 0deg;");
        } else {
            css_vars.push_str("--orbital-slider--direction: 90deg;");
        }

        if has_labels {
            css_vars.push_str(&format!("--orbital-slider--max: {:.2};", max));
            css_vars.push_str(&format!("--orbital-slider--min: {:.2};", min));
        }

        if let Some(step) = step.get() {
            if step > 0.0 && show_stops.get() && max != min {
                css_vars.push_str(&format!(
                    "--orbital-slider--steps-percent: {:.2}%;",
                    step * 100.0 / (max - min)
                ));
            }
        }

        if let Some(extra_style) = style.get() {
            css_vars.push_str(&extra_style);
        }

        css_vars
    };

    view! {
        <div class=move || {
            let mut parts = vec![
                "orbital-slider".to_string(),
                if vertical.get() {
                    "orbital-slider--vertical".to_string()
                } else {
                    "orbital-slider--horizontal".to_string()
                },
            ];
            if let Some(extra) = class.get() {
                if !extra.is_empty() {
                    parts.push(extra);
                }
            }
            parts.join(" ")
        } style=css_vars>
            <input
                min=move || min.get()
                max=move || max.get()
                step=move || step.get()
                type="range"
                class="orbital-slider__input"
                id=id
                name=name
                on:input=on_input
                value=current_value.get_untracked()
                prop:value=move || current_value.get()
            />
            <div class="orbital-slider__rail"></div>
            <div class="orbital-slider__thumb"></div>
            {if let Some(children) = children {
                let slider = SliderInjection { max, min, vertical };
                view! {
                    <Provider value=slider>
                        <div class="orbital-slider__datalist">{children()}</div>
                    </Provider>
                }
                    .into_any()
            } else {
                ().into_any()
            }}
        </div>
    }
}