forked from yewstack/yew
-
Notifications
You must be signed in to change notification settings - Fork 0
/
feat_ssr.rs
143 lines (121 loc) · 3.96 KB
/
feat_ssr.rs
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
//! The server-side rendering variant. This is used for server side rendering.
use std::future::Future;
use std::marker::PhantomData;
use std::rc::Rc;
use serde::de::DeserializeOwned;
use serde::Serialize;
use super::PreparedStateBase;
use crate::functional::{use_memo, use_state, Hook, HookContext};
use crate::platform::spawn_local;
use crate::suspense::{Suspension, SuspensionResult};
#[doc(hidden)]
pub fn use_prepared_state<T, D, F>(
f: F,
deps: D,
) -> impl Hook<Output = SuspensionResult<Option<Rc<T>>>>
where
D: Serialize + DeserializeOwned + PartialEq + 'static,
T: Serialize + DeserializeOwned + 'static,
F: FnOnce(Rc<D>) -> T,
{
struct HookProvider<T, D, F>
where
D: Serialize + DeserializeOwned + PartialEq + 'static,
T: Serialize + DeserializeOwned + 'static,
F: FnOnce(Rc<D>) -> T,
{
deps: D,
f: F,
}
impl<T, D, F> Hook for HookProvider<T, D, F>
where
D: Serialize + DeserializeOwned + PartialEq + 'static,
T: Serialize + DeserializeOwned + 'static,
F: FnOnce(Rc<D>) -> T,
{
type Output = SuspensionResult<Option<Rc<T>>>;
fn run(self, ctx: &mut HookContext) -> Self::Output {
let f = self.f;
let deps = Rc::new(self.deps);
let state = {
let deps = deps.clone();
use_memo(move |_| f(deps), ()).run(ctx)
};
let state = PreparedStateBase {
state: Some(state),
deps: Some(deps),
#[cfg(feature = "hydration")]
has_buf: true,
_marker: PhantomData,
};
let state =
ctx.next_prepared_state(|_re_render, _| -> PreparedStateBase<T, D> { state });
Ok(state.state.clone())
}
}
HookProvider::<T, D, F> { deps, f }
}
#[doc(hidden)]
pub fn use_prepared_state_with_suspension<T, D, F, U>(
f: F,
deps: D,
) -> impl Hook<Output = SuspensionResult<Option<Rc<T>>>>
where
D: Serialize + DeserializeOwned + PartialEq + 'static,
T: Serialize + DeserializeOwned + 'static,
F: FnOnce(Rc<D>) -> U,
U: 'static + Future<Output = T>,
{
struct HookProvider<T, D, F, U>
where
D: Serialize + DeserializeOwned + PartialEq + 'static,
T: Serialize + DeserializeOwned + 'static,
F: FnOnce(Rc<D>) -> U,
U: 'static + Future<Output = T>,
{
deps: D,
f: F,
}
impl<T, D, F, U> Hook for HookProvider<T, D, F, U>
where
D: Serialize + DeserializeOwned + PartialEq + 'static,
T: Serialize + DeserializeOwned + 'static,
F: FnOnce(Rc<D>) -> U,
U: 'static + Future<Output = T>,
{
type Output = SuspensionResult<Option<Rc<T>>>;
fn run(self, ctx: &mut HookContext) -> Self::Output {
let f = self.f;
let deps = Rc::new(self.deps);
let result = use_state(|| {
let (s, handle) = Suspension::new();
(Err(s), Some(handle))
})
.run(ctx);
{
let deps = deps.clone();
let result = result.clone();
use_state(move || {
let state_f = f(deps.clone());
spawn_local(async move {
let state = state_f.await;
result.set((Ok(Rc::new(state)), None));
})
})
.run(ctx);
}
let state = result.0.clone()?;
let state = PreparedStateBase {
state: Some(state),
deps: Some(deps),
#[cfg(feature = "hydration")]
has_buf: true,
_marker: PhantomData,
};
let state =
ctx.next_prepared_state(|_re_render, _| -> PreparedStateBase<T, D> { state });
Ok(state.state.clone())
}
}
HookProvider::<T, D, F, U> { deps, f }
}