components/attention-list/attention-list.react.tsx

Functions

Imports

It imports components/attention-list/attention-list.ts, components/row-list/row-list.react.tsx, components/status/status.react.tsx. No module of this repo imports it.

Source

1import { Fragment, useId, useState, type ReactNode } from "react";
2import { Row, RowList, type RowLinkProps } from "../row-list/row-list.react.tsx";
3import { Status } from "../status/status.react.tsx";
4import { TONE_WORD, arrange, problemCount, viewLinkText, type AttentionEntry, type AttentionGroupEntry, type AttentionGroupInfo, type AttentionItem } from "./attention-list.ts";
5
6export type { AttentionGroupInfo, AttentionItem, AttentionTone } from "./attention-list.ts";
7
8export type AttentionLinkProps = RowLinkProps;
9
10export interface AttentionListProps {
11  items: AttentionItem[];
12  title?: string;
13  // How fresh the reading is, after "Worst first.": "Read 40 seconds ago".
14  read?: ReactNode;
15  headingLevel?: 2 | 3;
16  // Said beside the ok status when no problem needs attention.
17  clearText?: string;
18  // Said under the notices row's count: what a notice is here.
19  noticesDetail?: string;
20  // What a folded group is called, what its rows have in common and where all of them are.
21  groups?: Record<string, AttentionGroupInfo>;
22  // Problem rows shown at once before "N more warnings" (critical rows always show), and the
23  // rows a group shows before its link to the view. The Portal's 8 and 5.
24  problemRows?: number;
25  groupRows?: number;
26  // The page's main list: j and k work on it before focus is inside it. One per page.
27  primary?: boolean;
28  // A router's link component; a plain <a> by default.
29  renderLink?: (props: RowLinkProps) => ReactNode;
30}
31
32const plainLink = ({ children, ...props }: RowLinkProps) => <a {...props}>{children}</a>;
33
34function whenOf(when: AttentionItem["when"]): ReactNode {
35  return typeof when === "string" ? when : when ? <time className="cap-time" dateTime={when.datetime}>{when.text}</time> : null;
36}
37
38// No data-cap here: React owns the open and closed state, so the behaviour module must not
39// attach (it would toggle twice).
40export function AttentionList(props: AttentionListProps) {
41  const { items, title = "Needs attention", read, headingLevel = 2, clearText = "Nothing needs you.", noticesDetail = "Nothing to act on now", groups, problemRows, groupRows, primary = true, renderLink = plainLink } = props;
42  const id = useId();
43  const [open, setOpen] = useState<ReadonlySet<string>>(() => new Set());
44  const arranged = arrange(items, { rows: problemRows, children: groupRows, groups });
45  const Heading = headingLevel === 3 ? "h3" : "h2";
46  const toggle = (key: string) =>
47    setOpen((prev) => {
48      const next = new Set(prev);
49      if (next.has(key)) next.delete(key);
50      else next.add(key);
51      return next;
52    });
53  const regionId = (key: string) => `${id}-r-${key.replace(/\W+/g, "-")}`;
54
55  const entry = (e: AttentionEntry) => {
56    if (e.kind === "row") {
57      const { item } = e;
58      return <Row key={item.id} tone={item.tone === "crit" ? "crit" : undefined} status={<Status tone={item.tone}>{TONE_WORD[item.tone]}</Status>} title={item.title} href={item.href} detail={item.detail} meta={whenOf(item.when)} renderLink={renderLink} />;
59    }
60    return group(e);
61  };
62
63  // A function, not a component: its identity must not change between renders, or a group
64  // would remount (and lose focus) each time one opens.
65  const group = (g: AttentionGroupEntry) => {
66    const rid = regionId(`group-${g.key}`);
67    const isOpen = open.has(`group-${g.key}`);
68    const link = viewLinkText(g);
69    return (
70      <Fragment key={`group-${g.key}`}>
71        <Row status={<Status tone={g.tone}>{TONE_WORD[g.tone]}</Status>} title={g.label} onOpen={() => toggle(`group-${g.key}`)} expanded={isOpen} controls={rid} detail={g.detail} meta={whenOf(g.when)} />
72        <li className="cap-attention-region" id={rid} hidden={!isOpen}>
73          <ul role="list" aria-label={g.label}>
74            {g.items.map((item) => (
75              <Row key={item.id} className="cap-attention-child" title={item.title} href={item.href} detail={item.detail} meta={whenOf(item.when)} renderLink={renderLink} />
76            ))}
77            {g.view && link ? (
78              <li className="cap-attention-link">
79                {renderLink({ href: g.view.href, children: link })}
80              </li>
81            ) : null}
82          </ul>
83        </li>
84      </Fragment>
85    );
86  };
87
88  const moreOpen = open.has("more");
89  const noticesOpen = open.has("notices");
90  const n = arranged.noticeCount;
91  const empty = arranged.problems.length === 0 && arranged.more.length === 0;
92
93  return (
94    <section className="cap-attention" aria-labelledby={`${id}-h`}>
95      <header className="cap-attention-head">
96        <Heading id={`${id}-h`} className="cap-attention-title">
97          {title}
98        </Heading>
99        <span className="cap-attention-count">{problemCount(arranged)}</span>
100        <span className="cap-attention-src">
101          Worst first.{read ? <> {read}</> : null}
102        </span>
103      </header>
104      {empty ? (
105        <p className="cap-attention-clear">
106          <Status tone="ok">All clear</Status>
107          <span className="cap-attention-clear-text">{clearText}</span>
108        </p>
109      ) : null}
110      {!empty || arranged.notices.length ? (
111        <RowList labelledBy={`${id}-h`} primary={primary}>
112          {arranged.problems.map(entry)}
113          {arranged.more.length ? (
114            <>
115              <li className="cap-attention-link">
116                <button type="button" aria-expanded={moreOpen} aria-controls={regionId("more")} onClick={() => toggle("more")}>
117                  {moreOpen ? "Fewer warnings" : `${arranged.more.length} more ${arranged.more.length === 1 ? "warning" : "warnings"}`}
118                </button>
119              </li>
120              <li className="cap-attention-region" id={regionId("more")} hidden={!moreOpen}>
121                <ul role="list" aria-label="More warnings">
122                  {arranged.more.map(entry)}
123                </ul>
124              </li>
125            </>
126          ) : null}
127          {arranged.notices.length ? (
128            <>
129              <Row
130                className="cap-attention-notices"
131                status={<Status tone="info">{TONE_WORD.info}</Status>}
132                title={`${n} ${n === 1 ? "notice" : "notices"}`}
133                onOpen={() => toggle("notices")}
134                expanded={noticesOpen}
135                controls={regionId("notices")}
136                detail={noticesDetail}
137              />
138              <li className="cap-attention-region" id={regionId("notices")} hidden={!noticesOpen}>
139                <ul role="list" aria-label="Notices">
140                  {arranged.notices.map((item) => (
141                    <Row key={item.id} className="cap-attention-child" title={item.title} href={item.href} detail={[TONE_WORD[item.tone], item.detail].filter(Boolean).join(" · ")} meta={whenOf(item.when)} renderLink={renderLink} />
142                  ))}
143                </ul>
144              </li>
145            </>
146          ) : null}
147        </RowList>
148      ) : null}
149    </section>
150  );
151}