vertigo 0.11.3

Reactive Real-DOM library with SSR for Rust
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

use std::rc::Rc;

use crate::{Computed, Css, Value};

#[derive(Clone)]
pub enum AttrValue {
    String(Rc<String>),
    Computed(Computed<String>),
    ComputedOpt(Computed<Option<String>>),
    Value(Value<String>),
    ValueOpt(Value<Option<String>>),
}

impl AttrValue {
    pub fn get(&self, ctx: &crate::computed::context::Context) -> Option<Rc<String>> {
        match self {
            AttrValue::String(s) => Some(s.clone()),
            AttrValue::Computed(c) => Some(Rc::new(c.get(ctx))),
            AttrValue::ComputedOpt(c) => c.get(ctx).map(Rc::new),
            AttrValue::Value(v) => Some(Rc::new(v.get(ctx))),
            AttrValue::ValueOpt(v) => v.get(ctx).map(Rc::new),
        }
    }

    pub fn combine(classes: Vec<AttrValue>) -> AttrValue {
        let mut all_static = true;
        for class in &classes {
            if !matches!(class, AttrValue::String(_)) {
                all_static = false;
                break;
            }
        }

        if all_static {
            let mut result = Vec::new();
            for class in classes {
                if let AttrValue::String(s) = class {
                    let s = s.trim();
                    if !s.is_empty() {
                        result.push(s.to_string());
                    }
                }
            }
            return AttrValue::String(Rc::new(result.join(" ")));
        }

        let computed = crate::Computed::from(move |ctx| {
            let mut result = Vec::new();
            for class in &classes {
                if let Some(s) = class.get(ctx) {
                    let s = s.trim();
                    if !s.is_empty() {
                        result.push(s.to_string());
                    }
                }
            }
            result.join(" ")
        });

        AttrValue::Computed(computed)
    }
}

impl<K: ToString> From<K> for AttrValue {
    fn from(value: K) -> Self {
        AttrValue::String(Rc::new(value.to_string()))
    }
}

macro_rules! impl_from_computed_for_attrvalue {
    ($typename:ty, $variant:ident, |$var:ident| $body:expr) => {
        impl From<$typename> for AttrValue {
            fn from($var: $typename) -> Self {
                AttrValue::$variant($body)
            }
        }
    };
    ($typename: ty, $variant: ident) => {
        impl_from_computed_for_attrvalue!($typename, $variant, |v| v);
    };
}

impl_from_computed_for_attrvalue!(Computed<String>, Computed);
impl_from_computed_for_attrvalue!(Computed<Option<String>>, ComputedOpt);
impl_from_computed_for_attrvalue!(&Computed<String>, Computed, |v| v.clone());
impl_from_computed_for_attrvalue!(&Computed<Option<String>>, ComputedOpt, |v| v.clone());

impl_from_computed_for_attrvalue!(Value<String>, Value);
impl_from_computed_for_attrvalue!(Value<Option<String>>, ValueOpt);
impl_from_computed_for_attrvalue!(&Value<String>, Value, |v| v.clone());
impl_from_computed_for_attrvalue!(&Value<Option<String>>, ValueOpt, |v| v.clone());

macro_rules! impl_stringable_into_computed_for_attrvalue {
    ($typename:ty) => {
        impl_from_computed_for_attrvalue!(Computed<$typename>, Computed, |v| v
            .map(|v| v.to_string()));
        impl_from_computed_for_attrvalue!(&Computed<$typename>, Computed, |v| v
            .map(|v| v.to_string()));
        impl_from_computed_for_attrvalue!(Value<$typename>, Computed, |v| v
            .to_computed()
            .map(|v| v.to_string()));
        impl_from_computed_for_attrvalue!(&Value<$typename>, Computed, |v| v
            .to_computed()
            .map(|v| v.to_string()));
    };
}

impl_stringable_into_computed_for_attrvalue!(i8);
impl_stringable_into_computed_for_attrvalue!(i16);
impl_stringable_into_computed_for_attrvalue!(i32);
impl_stringable_into_computed_for_attrvalue!(i64);
impl_stringable_into_computed_for_attrvalue!(isize);

impl_stringable_into_computed_for_attrvalue!(u8);
impl_stringable_into_computed_for_attrvalue!(u16);
impl_stringable_into_computed_for_attrvalue!(u32);
impl_stringable_into_computed_for_attrvalue!(u64);
impl_stringable_into_computed_for_attrvalue!(usize);

impl_stringable_into_computed_for_attrvalue!(f32);
impl_stringable_into_computed_for_attrvalue!(f64);

impl_stringable_into_computed_for_attrvalue!(char);

impl_stringable_into_computed_for_attrvalue!(bool);

pub enum CssAttrValue {
    Css(Css),
    Computed(Computed<Css>),
}

impl From<Css> for CssAttrValue {
    fn from(value: Css) -> Self {
        CssAttrValue::Css(value)
    }
}

impl From<Computed<Css>> for CssAttrValue {
    fn from(value: Computed<Css>) -> Self {
        CssAttrValue::Computed(value)
    }
}

impl From<&Css> for CssAttrValue {
    fn from(value: &Css) -> Self {
        CssAttrValue::Css(value.clone())
    }
}