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
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179

pub mod prelude {
    use super::*;
    pub use attr_bind::*;
    pub use attr_mixin::*;
    pub use attr_on::*;
    pub use attr_use::*;
}

pub mod attr_use {
    use std::fmt::Display;

    use hirola_core::{
        effect::EffectAttribute,
        prelude::{signal::SignalExt, GenericNode, SideEffect},
    };
    pub struct UseEffect;

    pub struct Future;

    impl EffectAttribute for Future {
        type Handler = UseEffect;
        fn read_as_attr(&self) -> String {
            "future".to_owned()
        }
    }
    impl<F: std::future::Future<Output = ()> + 'static, N: GenericNode> SideEffect<Future, F, N>
        for UseEffect
    {
        fn effect(&self, node: &N, _marker: Future, future: F) {
            node.effect(future)
        }
    }

    pub struct SignalAttr<S: hirola_core::prelude::signal::Signal>(String, S);

    pub fn attr_signal<S: hirola_core::prelude::signal::Signal>(
        attr: &str,
        signal: S,
    ) -> SignalAttr<S> {
        SignalAttr(attr.to_owned(), signal)
    }

    pub struct Signal;

    impl EffectAttribute for Signal {
        type Handler = UseEffect;
        fn read_as_attr(&self) -> String {
            "signal".to_owned()
        }
    }

    impl<
            S: hirola_core::prelude::signal::Signal<Item = D> + 'static,
            D: Display + PartialEq,
            N: GenericNode,
        > SideEffect<Signal, SignalAttr<S>, N> for UseEffect
    {
        fn effect(&self, dom: &N, _: Signal, signal: SignalAttr<S>) {
            let node = dom.clone();
            let attr = signal.0;
            let future = SignalExt::dedupe_map(signal.1, move |value| {
                GenericNode::set_attribute(&node, &attr, &value.to_string());
            })
            .to_future();

            dom.effect(future);
        }
    }
}

pub mod attr_on {
    pub struct OnEffect;

    use hirola_core::{
        effect::{EffectAttribute, SideEffect},
        generic_node::{EventListener, GenericNode},
    };
    use web_sys::Event;

    pub use crate::types::DomEvent::*;
    impl<
            D: EffectAttribute<Handler = OnEffect>,
            F: Fn(Event) + 'static,
            N: GenericNode + EventListener<F>,
        > SideEffect<D, F, N> for OnEffect
    {
        fn effect(&self, node: &N, attr: D, effect: F) {
            node.event(&attr.read_as_attr(), effect)
        }
    }
}

pub mod attr_bind {
    pub struct Value;
    use std::{
        fmt::{Debug, Display},
        str::FromStr,
    };

    use hirola_core::{
        effect::{EffectAttribute, SideEffect},
        generic_node::{EventListener, GenericNode, NodeReference},
        prelude::{signal::SignalExt, Mutable},
    };
    use wasm_bindgen::JsCast;
    use web_sys::{Event, HtmlInputElement};

    use crate::{node_ref::NodeRef, Dom};
    impl EffectAttribute for Value {
        type Handler = BindEffect;
        fn read_as_attr(&self) -> String {
            "value".to_owned()
        }
    }

    pub struct BindEffect;

    impl EffectAttribute for Ref {
        type Handler = BindEffect;
        fn read_as_attr(&self) -> String {
            "ref".to_owned()
        }
    }

    pub struct Ref;

    impl SideEffect<Ref, NodeRef, Dom> for BindEffect {
        fn effect(&self, node: &Dom, _attr: Ref, value: NodeRef) {
            NodeReference::set(&value, node.clone());
        }
    }

    impl<
            T: Clone + Display + PartialEq + 'static + FromStr,
            D: EffectAttribute<Handler = BindEffect>,
            N: GenericNode + EventListener<Box<dyn Fn(Event)>>,
        > SideEffect<D, &Mutable<T>, N> for BindEffect
    where
        <T as FromStr>::Err: Debug,
    {
        fn effect(&self, node: &N, attr: D, value: &Mutable<T>) {
            let attr = attr.read_as_attr().to_owned();
            let dom = node.clone();
            let future = SignalExt::dedupe_map(value.signal_cloned(), move |value| {
                GenericNode::set_attribute(&dom, &attr, &format!("{}", value));
            })
            .to_future();
            let value = value.clone();
            let handler = move |e: Event| {
                let input = e
                    .current_target()
                    .unwrap()
                    .dyn_into::<HtmlInputElement>()
                    .unwrap();
                let new_value = input.value();
                value.set(new_value.parse().unwrap());
            };
            node.event("input", Box::new(handler));
            node.effect(future);
        }
    }
}

pub mod attr_mixin {
    pub struct XEffect;

    use hirola_core::effect::{EffectAttribute, SideEffect};
    pub use XEffect as MixinEffect;

    use crate::Dom;

    pub use crate::mixins::*;

    impl<A: EffectAttribute<Handler = XEffect>> SideEffect<A, Box<dyn FnOnce(&Dom)>, Dom> for XEffect {
        fn effect(&self, node: &Dom, _: A, effect: Box<dyn FnOnce(&Dom)>) {
            effect(node);
        }
    }
}