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
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
import { useState, useEffect, useRef } from 'react';
import { Route, Link, Switch } from 'react-router-dom';
import { useScroll, useRafState } from 'react-use';
import qs from 'qs';
import svg4everybody from 'svg4everybody';
import Icon from './ui/Icon';
import { Discover, Discussions, Blog, Tag, Home } from './ui/Feeds';
import { Friends, Readers } from './ui/Users';
import Settings from './ui/Settings';
import Contacts from './ui/Contacts';
import Chat from './ui/Chat';
import Header from './ui/Header';
import Post from './ui/Post';
import Thread from './ui/Thread';
import Login from './ui/Login';
import { useCookies } from 'react-cookie';
import { me } from './api';
const elClassHidden = 'header--hidden';
const elClassTop = 'content--top';
export default function App() {
let contentRef = useRef(null);
const [cookie, setCookie] = useCookies(['hash']);
useEffect(() => {
svg4everybody();
let params = qs.parse(window.location.search.substring(1));
if (params.hash) {
setCookie('hash', params.hash, { path: '/' });
let retpath = params.retpath || `${window.location.protocol}//${window.location.host}${window.location.pathname}`;
window.history.replaceState({}, document.title, retpath);
}
}, []);
/**
* @type {import('./api').SecureUser}
*/
const unknownUser = {
uid: -1
};
const [visitor, setVisitor] = useState(unknownUser);
let updateStatus = () => {
// refresh server visitor state (unread counters)
me().then(visitor => {
setVisitor(visitor);
});
};
const [scrollState, setScrollState] = useRafState({
hidden: false,
top: false,
prevScroll: 0
});
let { x, y } = useScroll(contentRef);
useEffect(() => {
let dHeight = contentRef.current.scrollHeight;
let wHeight = contentRef.current.clientHeight;
setScrollState((scrollState) => {
let wScrollDiff = scrollState.prevScroll - y;
let hidden = scrollState.hidden;
let top = scrollState.top;
if (y <= 0) {
// scrolled to the very top; element sticks to the top
hidden = false;
top = true;
} else if ((wScrollDiff > 0) && hidden) {
// scrolled up; element slides in
hidden = false;
top = false;
} else if (wScrollDiff < 0) {
// scrolled down
if ((y + wHeight) >= dHeight && hidden) {
// scrolled to the very bottom; element slides in
hidden = false;
top = false;
} else {
// scrolled down; element slides out
hidden = true;
top = false;
}
}
return {
hidden: hidden,
top: top,
prevScroll: y
};
});
}, [x, y, setScrollState]);
const [hash, setHash] = useState(cookie.hash);
const [eventSource, setEventSource] = /** @param EventSource? */ useState({});
useEffect(() => {
let es;
const anonymousUser = {
uid: 0
};
if (hash) {
me().then(visitor => auth(visitor))
.catch(() => setVisitor(anonymousUser));
if ('EventSource' in window) {
const eventParams = { hash: hash };
let url = new URL(`https://juick.com/api/events?${qs.stringify(eventParams)}`);
es = new EventSource(url.toString());
es.onopen = () => {
console.log('online');
};
es.onerror = () => {
es.removeEventListener('read', updateStatus);
es.removeEventListener('msg', updateStatus);
};
es.addEventListener('read', updateStatus);
es.addEventListener('msg', updateStatus);
setEventSource(es);
}
} else {
setVisitor(anonymousUser);
}
return (() => {
if (es && es.removeEventListener) {
es.removeEventListener('read', updateStatus);
es.removeEventListener('msg', updateStatus);
}
});
}, [hash]);
/**
* @param {import("./api").SecureUser} visitor
*/
let auth = (visitor) => {
setVisitor(prevState => {
if (visitor.hash != prevState.hash) {
setHash(visitor.hash);
}
return visitor;
});
};
return (
<>
<Header visitor={visitor} className={scrollState.hidden ? elClassHidden : ''} />
<section id="content" ref={contentRef} className={scrollState.top ? elClassTop : ''}>
<Switch>
<Route exact path="/">
<Discussions visitor={visitor} />
</Route>
<Route exact path="/home">
<Home visitor={visitor} />
</Route>
<Route exact path="/discover">
<Discover visitor={visitor} />
</Route>
<Route exact path="/settings">
<Settings visitor={visitor} onChange={auth} />
</Route>
<Route exact path="/login">
<Login visitor={visitor} onAuth={auth} />
</Route>
<Route exact path="/post">
<Post visitor={visitor} />
</Route>
<Route exact path="/pm">
<Contacts visitor={visitor} />
</Route>
<Route exact path="/pm/:user">
<Chat connection={eventSource} visitor={visitor} />
</Route>
<Route exact path="/:user/friends">
<Friends />
</Route>
<Route exact path="/:user/readers">
<Readers />
</Route>
<Route exact path="/:user">
<Blog visitor={visitor} />
</Route>
<Route exact path="/tag/:tag">
<Tag visitor={visitor} />
</Route>
<Route exact path="/:user/:mid">
<Thread connection={eventSource} visitor={visitor} />
</Route>
</Switch>
</section>
{
visitor.uid > 0 &&
<aside id="sidebar">
<Link to="/?show=my">
<Icon name="ei-clock" size="s" />
<span className="desktop">My feed</span>
</Link>
<Link to="/pm">
<Icon name="ei-envelope" size="s" />
<span className="desktop">Messages</span>
</Link>
<Link to="/?show=discuss">
<Icon name="ei-bell" size="s" />
<span className="desktop">Discussions</span>
</Link>
<Link to="/settings" rel="nofollow">
<Icon name="ei-gear" size="s" />
<span className="desktop">Settings</span>
</Link>
</aside>
}
</>
);
}
|
