guise-ui 0.4.1

A Mantine-inspired component library for gpui, Zed's GPU-accelerated UI framework.
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
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156

//! `Switch` — a controlled on/off toggle styled as a sliding track.

use gpui::prelude::*;
use gpui::{div, px, App, ClickEvent, ElementId, IntoElement, SharedString, Window};

use super::ClickHandler;
use crate::reactive::Binding;
use crate::theme::{theme, ColorName, Size};

/// A controlled switch. The Mantine `Switch`.
#[derive(IntoElement)]
pub struct Switch {
    id: ElementId,
    checked: bool,
    label: Option<SharedString>,
    size: Size,
    color: ColorName,
    disabled: bool,
    binding: Option<Binding<bool>>,
    on_change: Option<ClickHandler>,
}

impl Switch {
    pub fn new(id: impl Into<ElementId>) -> Self {
        Switch {
            id: id.into(),
            checked: false,
            label: None,
            size: Size::Md,
            color: ColorName::Blue,
            disabled: false,
            binding: None,
            on_change: None,
        }
    }

    pub fn checked(mut self, checked: bool) -> Self {
        self.checked = checked;
        self
    }

    pub fn label(mut self, label: impl Into<SharedString>) -> Self {
        self.label = Some(label.into());
        self
    }

    pub fn size(mut self, size: Size) -> Self {
        self.size = size;
        self
    }

    pub fn color(mut self, color: ColorName) -> Self {
        self.color = color;
        self
    }

    pub fn disabled(mut self, disabled: bool) -> Self {
        self.disabled = disabled;
        self
    }

    /// Two-way bind the on/off state. Overrides `checked`; clicks write the
    /// toggled value back through the binding, then run any `on_change`.
    pub fn bind(mut self, binding: Binding<bool>) -> Self {
        self.binding = Some(binding);
        self
    }

    pub fn on_change(
        mut self,
        handler: impl Fn(&ClickEvent, &mut Window, &mut App) + 'static,
    ) -> Self {
        self.on_change = Some(Box::new(handler));
        self
    }

    fn track_height(&self) -> f32 {
        match self.size {
            Size::Xs => 16.0,
            Size::Sm => 20.0,
            Size::Md => 24.0,
            Size::Lg => 30.0,
            Size::Xl => 36.0,
        }
    }
}

impl RenderOnce for Switch {
    fn render(self, _window: &mut Window, cx: &mut App) -> impl IntoElement {
        let t = theme(cx);
        let height = self.track_height();
        let width = (height * 1.85).round();
        let knob = height - 4.0;
        let accent = t.color(self.color, t.primary_shade());
        let checked = self.binding.as_ref().map_or(self.checked, |b| b.get(cx));

        let track_bg = if checked {
            accent.hsla()
        } else {
            t.color(ColorName::Gray, if t.scheme.is_dark() { 6 } else { 4 })
                .hsla()
        };
        let knob_x = if checked { width - knob - 2.0 } else { 2.0 };

        let track = div()
            .w(px(width))
            .h(px(height))
            .rounded(px(height))
            .bg(track_bg)
            .relative()
            .child(
                div()
                    .absolute()
                    .top(px(2.0))
                    .left(px(knob_x))
                    .w(px(knob))
                    .h(px(knob))
                    .rounded(px(knob))
                    .bg(t.white.hsla()),
            );

        let mut row = div()
            .id(self.id)
            .flex()
            .items_center()
            .gap(px(8.0))
            .child(track);
        if let Some(label) = self.label {
            row = row.child(
                div()
                    .text_size(px(t.font_size(self.size)))
                    .text_color(t.text().hsla())
                    .child(label),
            );
        }

        if self.disabled {
            row.opacity(0.5)
        } else {
            if self.binding.is_some() || self.on_change.is_some() {
                let binding = self.binding;
                let handler = self.on_change;
                let next = !checked;
                row = row.on_click(move |ev, window, cx| {
                    if let Some(binding) = &binding {
                        binding.set(cx, next);
                    }
                    if let Some(handler) = &handler {
                        handler(ev, window, cx);
                    }
                });
            }
            row
        }
    }
}