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
|
import { h } from 'preact';
import { useState, useEffect } from 'preact/hooks';
import Layout from '../layout';
import css from './css';
import { Links } from './Links';
import { Note } from './Note';
css`
article {
position: absolute;
inset: 0;
overflow: auto;
}
article > h1 {
display: flex;
align-items: baseline;
position: sticky;
inset: 0;
bottom: auto;
z-index: 200;
margin: 0;
padding: 0.75rem 1.5rem;
background: var(--theme-title-bg);
color: var(--theme-title-fg);
}
article > h1 > span {
overflow: hidden;
white-space: nowrap;
text-overflow: ellipsis;
}
article > h1 .back {
font-size: 0.8em;
color: inherit;
opacity: 0.5;
margin-left: 1em;
}
article > div {
position: relative;
margin: 2rem 2rem 6rem;
}
`;
const tmp = document.createElement('span');
export const Discussion = ({
name, items, collapsed,
toggleCollapsed, toggleSelected,
}) => {
const [{ width, height, positions, links }, setState] = useState({
width: 0,
height: 0,
positions: {},
links: [],
});
const layout = new Layout();
const setNodeSize = layout.addNode.bind(layout);
useEffect(() => {
layout.render().then(setState);
}, [ items, collapsed ]);
tmp.innerHTML = name;
name = tmp.innerText;
return (
<article>
<h1>
<span>{name}</span>
<a class="back" href="?">back</a>
</h1>
<div>
<Links width={width} height={height} links={links} />
<div>
{Object.values(items).map((item) => {
const isCollapsed = collapsed[item.id];
const hidden =
item.inReplyTo.every(p => collapsed[p.id])
&& item.replies.every(c => collapsed[c.id])
&& item.inReplyTo.length !== 0;
if (hidden)
return;
const onlyParent = item.inReplyTo.length === 1 && items[item.inReplyTo[0].id];
for (const reply of item.replies) {
if (isCollapsed && collapsed[reply.id])
continue;
layout.addLink(item.id, reply.id);
}
return (
<Note
{...item}
smallHeader={
onlyParent // only one parent post
&& onlyParent.attributedTo === item.attributedTo // posted by same user
&& onlyParent.published === item.published // in the same second
}
collapsed={isCollapsed}
position={positions[item.id]}
onCollapse={toggleCollapsed}
onSelect={toggleSelected}
onSize={setNodeSize}
/>
);
})}
</div>
</div>
</article>
);
};
|
