material-ui-rs 0.5.1

A Material3 inspired theme for `iced`
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
157
158
159
160
161
162

use iced_widget::core::{Background, Border, Shadow, border};
use iced_widget::scrollable::{AutoScroll, Catalog, Rail, Scroller, Status, Style, StyleFn};

use crate::Theme;
use crate::style::container::surface_container;
use crate::utils::{
    HOVERED_LAYER_OPACITY, PRESSED_LAYER_OPACITY, disabled_container, disabled_text, mix,
};

impl Catalog for Theme {
    type Class<'a> = StyleFn<'a, Self>;

    fn default<'a>() -> Self::Class<'a> {
        Box::new(default)
    }

    fn style(&self, class: &Self::Class<'_>, status: Status) -> Style {
        class(self, status)
    }
}

pub fn default(theme: &Theme, status: Status) -> Style {
    let surface = theme.colors().surface;

    let active_rail = Rail {
        background: None,
        scroller: Scroller {
            background: surface.text.into(),
            border: border::rounded(9999),
        },
        border: Border::default(),
    };

    let disabled_rail = Rail {
        background: Some(Background::Color(disabled_container(surface.text))),
        scroller: Scroller {
            background: disabled_text(surface.text).into(),
            border: border::rounded(9999),
        },
        ..active_rail
    };

    let active_auto_scroll = AutoScroll {
        background: surface.color.into(),
        border: border::rounded(500).width(1).color(surface.text),
        icon: surface.text,
        shadow: Shadow::default(),
    };

    let disabled_auto_scroll = AutoScroll {
        background: disabled_container(surface.text).into(),
        border: border::rounded(9999),
        icon: disabled_text(surface.text),
        shadow: Shadow::default(),
    };

    let style = Style {
        container: surface_container(theme),
        vertical_rail: active_rail,
        horizontal_rail: active_rail,
        gap: None,
        auto_scroll: active_auto_scroll,
    };

    match status {
        Status::Active {
            is_horizontal_scrollbar_disabled,
            is_vertical_scrollbar_disabled,
        } => Style {
            horizontal_rail: if is_horizontal_scrollbar_disabled {
                disabled_rail
            } else {
                active_rail
            },
            vertical_rail: if is_vertical_scrollbar_disabled {
                disabled_rail
            } else {
                active_rail
            },
            auto_scroll: if is_vertical_scrollbar_disabled && is_horizontal_scrollbar_disabled {
                disabled_auto_scroll
            } else {
                active_auto_scroll
            },
            ..style
        },
        Status::Hovered {
            is_horizontal_scrollbar_hovered,
            is_vertical_scrollbar_hovered,
            is_horizontal_scrollbar_disabled,
            is_vertical_scrollbar_disabled,
        } => {
            let hovered_rail = Rail {
                scroller: Scroller {
                    background: mix(surface.text, surface.color, HOVERED_LAYER_OPACITY).into(),
                    border: border::rounded(9999),
                },
                ..active_rail
            };

            Style {
                horizontal_rail: if is_horizontal_scrollbar_disabled {
                    disabled_rail
                } else if is_horizontal_scrollbar_hovered {
                    hovered_rail
                } else {
                    active_rail
                },
                vertical_rail: if is_vertical_scrollbar_disabled {
                    disabled_rail
                } else if is_vertical_scrollbar_hovered {
                    hovered_rail
                } else {
                    active_rail
                },
                auto_scroll: if is_vertical_scrollbar_disabled && is_horizontal_scrollbar_disabled {
                    disabled_auto_scroll
                } else {
                    active_auto_scroll
                },
                ..style
            }
        }
        Status::Dragged {
            is_horizontal_scrollbar_dragged,
            is_vertical_scrollbar_dragged,
            is_horizontal_scrollbar_disabled,
            is_vertical_scrollbar_disabled,
        } => {
            let dragged_rail = Rail {
                scroller: Scroller {
                    background: mix(surface.text, surface.color, PRESSED_LAYER_OPACITY).into(),
                    border: border::rounded(9999),
                },
                ..active_rail
            };

            Style {
                horizontal_rail: if is_horizontal_scrollbar_disabled {
                    disabled_rail
                } else if is_horizontal_scrollbar_dragged {
                    dragged_rail
                } else {
                    active_rail
                },
                vertical_rail: if is_vertical_scrollbar_disabled {
                    disabled_rail
                } else if is_vertical_scrollbar_dragged {
                    dragged_rail
                } else {
                    active_rail
                },
                auto_scroll: if is_vertical_scrollbar_disabled && is_horizontal_scrollbar_disabled {
                    disabled_auto_scroll
                } else {
                    active_auto_scroll
                },
                ..style
            }
        }
    }
}