phanpy/src/pages/status.jsx

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React
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import './status.css';
import { Menu, MenuItem } from '@szhsin/react-menu';
import debounce from 'just-debounce-it';
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import pRetry from 'p-retry';
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import { useEffect, useMemo, useRef, useState } from 'preact/hooks';
import { useHotkeys } from 'react-hotkeys-hook';
import { InView } from 'react-intersection-observer';
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import { matchPath, useNavigate, useParams } from 'react-router-dom';
import { useDebouncedCallback } from 'use-debounce';
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import { useSnapshot } from 'valtio';
import Avatar from '../components/avatar';
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import Icon from '../components/icon';
import Link from '../components/link';
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import Loader from '../components/loader';
import NameText from '../components/name-text';
import RelativeTime from '../components/relative-time';
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import Status from '../components/status';
import { api } from '../utils/api';
import htmlContentLength from '../utils/html-content-length';
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import shortenNumber from '../utils/shorten-number';
import states, {
saveStatus,
statusKey,
threadifyStatus,
} from '../utils/states';
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import { getCurrentAccount } from '../utils/store-utils';
import useScroll from '../utils/useScroll';
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import useTitle from '../utils/useTitle';
const LIMIT = 40;
const THREAD_LIMIT = 20;
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let cachedStatusesMap = {};
function resetScrollPosition(id) {
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delete cachedStatusesMap[id];
delete states.scrollPositions[id];
}
function StatusPage() {
const { id, ...params } = useParams();
const { masto, instance } = api({ instance: params.instance });
const {
masto: currentMasto,
instance: currentInstance,
authenticated,
} = api();
const sameInstance = instance === currentInstance;
const navigate = useNavigate();
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const snapStates = useSnapshot(states);
const [statuses, setStatuses] = useState([]);
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const [uiState, setUIState] = useState('default');
const heroStatusRef = useRef();
const sKey = statusKey(id, instance);
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const scrollableRef = useRef();
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useEffect(() => {
scrollableRef.current?.focus();
}, []);
useEffect(() => {
const onScroll = debounce(() => {
// console.log('onScroll');
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if (!scrollableRef.current) return;
const { scrollTop } = scrollableRef.current;
if (uiState !== 'loading') {
states.scrollPositions[id] = scrollTop;
}
}, 50);
scrollableRef.current.addEventListener('scroll', onScroll, {
passive: true,
});
onScroll();
return () => {
onScroll.cancel();
scrollableRef.current?.removeEventListener('scroll', onScroll);
};
}, [id, uiState !== 'loading']);
const scrollOffsets = useRef();
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const initContext = ({ reloadHero } = {}) => {
console.debug('initContext', id);
setUIState('loading');
let heroTimer;
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const cachedStatuses = cachedStatusesMap[id];
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if (cachedStatuses) {
// Case 1: It's cached, let's restore them to make it snappy
const reallyCachedStatuses = cachedStatuses.filter(
(s) => states.statuses[sKey],
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// Some are not cached in the global state, so we need to filter them out
);
setStatuses(reallyCachedStatuses);
} else {
// const heroIndex = statuses.findIndex((s) => s.id === id);
// if (heroIndex !== -1) {
// // Case 2: It's in current statuses. Slice off all descendant statuses after the hero status to be safe
// const slicedStatuses = statuses.slice(0, heroIndex + 1);
// setStatuses(slicedStatuses);
// } else {
// Case 3: Not cached and not in statuses, let's start from scratch
setStatuses([{ id }]);
// }
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}
(async () => {
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const heroFetch = () =>
pRetry(() => masto.v1.statuses.fetch(id), {
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retries: 4,
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});
const contextFetch = pRetry(() => masto.v1.statuses.fetchContext(id), {
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retries: 8,
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});
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const hasStatus = !!snapStates.statuses[sKey];
let heroStatus = snapStates.statuses[sKey];
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if (hasStatus && !reloadHero) {
console.debug('Hero status is cached');
} else {
try {
heroStatus = await heroFetch();
saveStatus(heroStatus, instance);
// Give time for context to appear
await new Promise((resolve) => {
setTimeout(resolve, 100);
});
} catch (e) {
console.error(e);
setUIState('error');
return;
}
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}
try {
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const context = await contextFetch;
const { ancestors, descendants } = context;
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ancestors.forEach((status) => {
saveStatus(status, instance, {
skipThreading: true,
});
});
const nestedDescendants = [];
descendants.forEach((status) => {
saveStatus(status, instance, {
skipThreading: true,
});
if (status.inReplyToAccountId === status.account.id) {
// If replying to self, it's part of the thread, level 1
nestedDescendants.push(status);
} else if (status.inReplyToId === heroStatus.id) {
// If replying to the hero status, it's a reply, level 1
nestedDescendants.push(status);
} else {
// If replying to someone else, it's a reply to a reply, level 2
const parent = descendants.find((s) => s.id === status.inReplyToId);
if (parent) {
if (!parent.__replies) {
parent.__replies = [];
}
parent.__replies.push(status);
} else {
// If no parent, something is wrong
console.warn('No parent found for', status);
}
}
});
console.log({ ancestors, descendants, nestedDescendants });
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const allStatuses = [
...ancestors.map((s) => ({
id: s.id,
ancestor: true,
accountID: s.account.id,
})),
{ id, accountID: heroStatus.account.id },
...nestedDescendants.map((s) => ({
id: s.id,
accountID: s.account.id,
descendant: true,
thread: s.account.id === heroStatus.account.id,
replies: s.__replies?.map((r) => ({
id: r.id,
account: r.account,
repliesCount: r.repliesCount,
content: r.content,
replies: r.__replies?.map((r2) => ({
// Level 3
id: r2.id,
account: r2.account,
repliesCount: r2.repliesCount,
content: r2.content,
replies: r2.__replies?.map((r3) => ({
// Level 4
id: r3.id,
account: r3.account,
repliesCount: r3.repliesCount,
content: r3.content,
})),
})),
})),
})),
];
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setUIState('default');
scrollOffsets.current = {
offsetTop: heroStatusRef.current?.offsetTop,
scrollTop: scrollableRef.current?.scrollTop,
};
console.log({ allStatuses });
setStatuses(allStatuses);
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cachedStatusesMap[id] = allStatuses;
// Let's threadify this one
// Note that all non-hero statuses will trigger saveStatus which will threadify them too
// By right, at this point, all descendant statuses should be cached
threadifyStatus(heroStatus, instance);
} catch (e) {
console.error(e);
setUIState('error');
}
})();
return () => {
clearTimeout(heroTimer);
};
};
useEffect(initContext, [id, masto]);
useEffect(() => {
if (!statuses.length) return;
console.debug('STATUSES', statuses);
const scrollPosition = states.scrollPositions[id];
console.debug('scrollPosition', scrollPosition);
if (!!scrollPosition) {
console.debug('Case 1', {
id,
scrollPosition,
});
scrollableRef.current.scrollTop = scrollPosition;
} else if (scrollOffsets.current) {
const newScrollOffsets = {
offsetTop: heroStatusRef.current?.offsetTop,
scrollTop: scrollableRef.current?.scrollTop,
};
const newScrollTop =
newScrollOffsets.offsetTop -
scrollOffsets.current.offsetTop +
newScrollOffsets.scrollTop;
console.debug('Case 2', {
scrollOffsets: scrollOffsets.current,
newScrollOffsets,
newScrollTop,
statuses: [...statuses],
});
scrollableRef.current.scrollTop = newScrollTop;
} else if (statuses.length === 1) {
console.debug('Case 3', {
id,
});
scrollableRef.current.scrollTop = 0;
}
// RESET
scrollOffsets.current = null;
}, [statuses]);
useEffect(() => {
if (snapStates.reloadStatusPage <= 0) return;
// Delete the cache for the context
(async () => {
try {
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const { instanceURL } = getCurrentAccount();
const contextURL = `https://${instanceURL}/api/v1/statuses/${id}/context`;
console.log('Clear cache', contextURL);
const apiCache = await caches.open('api');
await apiCache.delete(contextURL, { ignoreVary: true });
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return initContext({
reloadHero: true,
});
} catch (e) {
console.error(e);
}
})();
}, [snapStates.reloadStatusPage]);
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useEffect(() => {
return () => {
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// RESET
states.scrollPositions = {};
states.reloadStatusPage = 0;
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cachedStatusesMap = {};
};
}, []);
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const heroStatus = snapStates.statuses[sKey] || snapStates.statuses[id];
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const heroDisplayName = useMemo(() => {
// Remove shortcodes from display name
if (!heroStatus) return '';
const { account } = heroStatus;
const div = document.createElement('div');
div.innerHTML = account.displayName;
return div.innerText.trim();
}, [heroStatus]);
const heroContentText = useMemo(() => {
if (!heroStatus) return '';
const { spoilerText, content } = heroStatus;
let text;
if (spoilerText) {
text = spoilerText;
} else {
const div = document.createElement('div');
div.innerHTML = content;
text = div.innerText.trim();
}
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if (text.length > 64) {
// "The title should ideally be less than 64 characters in length"
// https://www.w3.org/Provider/Style/TITLE.html
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text = text.slice(0, 64) + '…';
}
return text;
}, [heroStatus]);
useTitle(
heroDisplayName && heroContentText
? `${heroDisplayName}: "${heroContentText}"`
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: 'Status',
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'/:instance?/s/:id',
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);
const closeLink = useMemo(() => {
const { prevLocation } = snapStates;
const pathname =
(prevLocation?.pathname || '') + (prevLocation?.search || '');
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if (
!pathname ||
matchPath('/:instance/s/:id', pathname) ||
matchPath('/s/:id', pathname)
) {
return '/';
}
return pathname;
}, []);
const onClose = () => {
states.showMediaModal = false;
};
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const [limit, setLimit] = useState(LIMIT);
const showMore = useMemo(() => {
// return number of statuses to show
return statuses.length - limit;
}, [statuses.length, limit]);
const hasManyStatuses = statuses.length > THREAD_LIMIT;
const hasDescendants = statuses.some((s) => s.descendant);
const ancestors = statuses.filter((s) => s.ancestor);
const [heroInView, setHeroInView] = useState(true);
const onView = useDebouncedCallback(setHeroInView, 100);
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const heroPointer = useMemo(() => {
// get top offset of heroStatus
if (!heroStatusRef.current || heroInView) return null;
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const { top } = heroStatusRef.current.getBoundingClientRect();
return top > 0 ? 'down' : 'up';
}, [heroInView]);
useHotkeys(['esc', 'backspace'], () => {
// location.hash = closeLink;
onClose();
navigate(closeLink);
});
useHotkeys('j', () => {
const activeStatus = document.activeElement.closest(
'.status-link, .status-focus',
);
const activeStatusRect = activeStatus?.getBoundingClientRect();
const allStatusLinks = Array.from(
// Select all statuses except those inside collapsed details/summary
// Hat-tip to @AmeliaBR@front-end.social
// https://front-end.social/@AmeliaBR/109784776146144471
scrollableRef.current.querySelectorAll(
'.status-link:not(details:not([open]) > summary ~ *, details:not([open]) > summary ~ * *), .status-focus:not(details:not([open]) > summary ~ *, details:not([open]) > summary ~ * *)',
),
);
console.log({ allStatusLinks });
if (
activeStatus &&
activeStatusRect.top < scrollableRef.current.clientHeight &&
activeStatusRect.bottom > 0
) {
const activeStatusIndex = allStatusLinks.indexOf(activeStatus);
let nextStatus = allStatusLinks[activeStatusIndex + 1];
if (nextStatus) {
nextStatus.focus();
nextStatus.scrollIntoViewIfNeeded?.();
}
} else {
// If active status is not in viewport, get the topmost status-link in viewport
const topmostStatusLink = allStatusLinks.find((statusLink) => {
const statusLinkRect = statusLink.getBoundingClientRect();
return statusLinkRect.top >= 44 && statusLinkRect.left >= 0; // 44 is the magic number for header height, not real
});
if (topmostStatusLink) {
topmostStatusLink.focus();
topmostStatusLink.scrollIntoViewIfNeeded?.();
}
}
});
useHotkeys('k', () => {
const activeStatus = document.activeElement.closest(
'.status-link, .status-focus',
);
const activeStatusRect = activeStatus?.getBoundingClientRect();
const allStatusLinks = Array.from(
scrollableRef.current.querySelectorAll(
'.status-link:not(details:not([open]) > summary ~ *, details:not([open]) > summary ~ * *), .status-focus:not(details:not([open]) > summary ~ *, details:not([open]) > summary ~ * *)',
),
);
if (
activeStatus &&
activeStatusRect.top < scrollableRef.current.clientHeight &&
activeStatusRect.bottom > 0
) {
const activeStatusIndex = allStatusLinks.indexOf(activeStatus);
let prevStatus = allStatusLinks[activeStatusIndex - 1];
if (prevStatus) {
prevStatus.focus();
prevStatus.scrollIntoViewIfNeeded?.();
}
} else {
// If active status is not in viewport, get the topmost status-link in viewport
const topmostStatusLink = allStatusLinks.find((statusLink) => {
const statusLinkRect = statusLink.getBoundingClientRect();
return statusLinkRect.top >= 44 && statusLinkRect.left >= 0; // 44 is the magic number for header height, not real
});
if (topmostStatusLink) {
topmostStatusLink.focus();
topmostStatusLink.scrollIntoViewIfNeeded?.();
}
}
});
// NOTE: I'm not sure if 'x' is the best shortcut for this, might change it later
// IDEA: x is for expand
useHotkeys('x', () => {
const activeStatus = document.activeElement.closest(
'.status-link, .status-focus',
);
if (activeStatus) {
const details = activeStatus.nextElementSibling;
if (details && details.tagName.toLowerCase() === 'details') {
details.open = !details.open;
}
}
});
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const { nearReachStart } = useScroll({
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scrollableRef,
distanceFromStartPx: 16,
});
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return (
<div class="deck-backdrop">
<Link to={closeLink} onClick={onClose}></Link>
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<div
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tabIndex="-1"
ref={scrollableRef}
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class={`status-deck deck contained ${
statuses.length > 1 ? 'padded-bottom' : ''
}`}
>
<header
class={`${heroInView ? 'inview' : ''}`}
onDblClick={(e) => {
// reload statuses
states.reloadStatusPage++;
}}
>
{/* <div>
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<Link class="button plain deck-close" href={closeLink}>
<Icon icon="chevron-left" size="xl" />
</Link>
</div> */}
<div class="header-grid header-grid-2">
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<h1>
{!heroInView && heroStatus && uiState !== 'loading' ? (
<>
<span class="hero-heading">
<NameText
account={heroStatus.account}
instance={instance}
showAvatar
short
/>{' '}
<span class="insignificant">
&bull;{' '}
<RelativeTime
datetime={heroStatus.createdAt}
format="micro"
/>
</span>
</span>{' '}
<button
type="button"
class="ancestors-indicator light small"
onClick={(e) => {
e.preventDefault();
e.stopPropagation();
heroStatusRef.current.scrollIntoView({
behavior: 'smooth',
block: 'start',
});
}}
>
<Icon
icon={heroPointer === 'down' ? 'arrow-down' : 'arrow-up'}
/>
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</button>
</>
) : (
<>
Status{' '}
<button
type="button"
class="ancestors-indicator light small"
onClick={(e) => {
// Scroll to top
e.preventDefault();
e.stopPropagation();
scrollableRef.current.scrollTo({
top: 0,
behavior: 'smooth',
});
}}
hidden={!ancestors.length || nearReachStart}
>
<Icon icon="arrow-up" />
<Icon icon="comment" />{' '}
<span class="insignificant">
{shortenNumber(ancestors.length)}
</span>
</button>
</>
)}
</h1>
<div class="header-side">
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{uiState === 'loading' ? (
<Loader abrupt />
) : (
<Menu
align="end"
portal={{
// Need this, else the menu click will cause scroll jump
target: scrollableRef.current,
}}
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menuButton={
<button type="button" class="button plain4">
<Icon icon="more" alt="Actions" size="xl" />
</button>
}
>
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<MenuItem
onClick={() => {
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// Click all buttons with class .spoiler but not .spoiling
const buttons = Array.from(
scrollableRef.current.querySelectorAll(
'button.spoiler:not(.spoiling)',
),
);
buttons.forEach((button) => {
button.click();
});
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}}
>
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<Icon icon="eye-open" />{' '}
<span>Show all sensitive content</span>
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</MenuItem>
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</Menu>
)}
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<Link
class="button plain deck-close"
to={closeLink}
onClick={onClose}
>
<Icon icon="x" size="xl" />
</Link>
</div>
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</div>
</header>
{!!statuses.length && heroStatus ? (
<ul
class={`timeline flat contextual grow ${
uiState === 'loading' ? 'loading' : ''
}`}
>
{statuses.slice(0, limit).map((status) => {
const {
id: statusID,
ancestor,
descendant,
thread,
replies,
} = status;
const isHero = statusID === id;
return (
<li
key={statusID}
ref={isHero ? heroStatusRef : null}
class={`${ancestor ? 'ancestor' : ''} ${
descendant ? 'descendant' : ''
} ${thread ? 'thread' : ''} ${isHero ? 'hero' : ''}`}
>
{isHero ? (
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<>
<InView
threshold={0.1}
onChange={onView}
class="status-focus"
tabIndex={0}
>
<Status
statusID={statusID}
instance={instance}
withinContext
size="l"
enableTranslate
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/>
</InView>
{uiState !== 'loading' && !authenticated ? (
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<div class="post-status-banner">
<p>
You're not logged in. Interactions (reply, boost,
etc) are not possible.
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</p>
<Link to="/login" class="button">
Log in
</Link>
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</div>
) : (
!sameInstance && (
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<div class="post-status-banner">
<p>
This post is from another instance (
<b>{instance}</b>). Interactions (reply, boost,
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etc) are not possible.
</p>
<button
type="button"
disabled={uiState === 'loading'}
onClick={() => {
setUIState('loading');
(async () => {
try {
const results =
await currentMasto.v2.search({
q: heroStatus.url,
type: 'statuses',
resolve: true,
limit: 1,
});
if (results.statuses.length) {
const status = results.statuses[0];
navigate(
currentInstance
? `/${currentInstance}/s/${status.id}`
: `/s/${status.id}`,
);
} else {
throw new Error('No results');
}
} catch (e) {
setUIState('default');
alert('Error: ' + e);
console.error(e);
}
})();
}}
>
<Icon icon="transfer" /> Switch to my instance to
enable interactions
</button>
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</div>
)
)}
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</>
) : (
<Link
class="status-link"
to={
instance
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? `/${instance}/s/${statusID}`
: `/s/${statusID}`
}
onClick={() => {
resetScrollPosition(statusID);
}}
>
<Status
statusID={statusID}
instance={instance}
withinContext
size={thread || ancestor ? 'm' : 's'}
enableTranslate
/>
{/* {replies?.length > LIMIT && (
<div class="replies-link">
<Icon icon="comment" />{' '}
<span title={replies.length}>
{shortenNumber(replies.length)}
</span>
</div>
)} */}
</Link>
)}
{descendant && replies?.length > 0 && (
<SubComments
instance={instance}
hasManyStatuses={hasManyStatuses}
replies={replies}
hasParentThread={thread}
/>
)}
{uiState === 'loading' &&
isHero &&
!!heroStatus?.repliesCount &&
!hasDescendants && (
<div class="status-loading">
<Loader />
</div>
)}
{uiState === 'error' &&
isHero &&
!!heroStatus?.repliesCount &&
!hasDescendants && (
<div class="status-error">
Unable to load replies.
<br />
<button
type="button"
class="plain"
onClick={() => {
states.reloadStatusPage++;
}}
>
Try again
</button>
</div>
)}
</li>
);
})}
{showMore > 0 && (
<li>
<button
type="button"
class="plain block"
disabled={uiState === 'loading'}
onClick={() => setLimit((l) => l + LIMIT)}
style={{ marginBlockEnd: '6em' }}
>
Show more&hellip;{' '}
<span class="tag">
{showMore > LIMIT ? `${LIMIT}+` : showMore}
</span>
</button>
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</li>
)}
</ul>
) : (
<>
{uiState === 'loading' && (
<ul class="timeline flat contextual grow loading">
<li>
<Status skeleton size="l" />
</li>
</ul>
)}
{uiState === 'error' && (
<p class="ui-state">
Unable to load status
<br />
<br />
<button
type="button"
onClick={() => {
states.reloadStatusPage++;
}}
>
Try again
</button>
</p>
)}
</>
)}
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</div>
</div>
);
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}
function SubComments({ hasManyStatuses, replies, instance, hasParentThread }) {
// Set isBrief = true:
// - if less than or 2 replies
// - if replies have no sub-replies
// - if total number of characters of content from replies is less than 500
let isBrief = false;
if (replies.length <= 2) {
const containsSubReplies = replies.some(
(r) => r.repliesCount > 0 || r.replies?.length > 0,
);
if (!containsSubReplies) {
let totalLength = replies.reduce((acc, reply) => {
const { content } = reply;
const length = htmlContentLength(content);
return acc + length;
}, 0);
isBrief = totalLength < 500;
}
}
// Total comments count, including sub-replies
const diveDeep = (replies) => {
return replies.reduce((acc, reply) => {
const { repliesCount, replies } = reply;
const count = replies?.length || repliesCount;
return acc + count + diveDeep(replies || []);
}, 0);
};
const totalComments = replies.length + diveDeep(replies);
const sameCount = replies.length === totalComments;
// Get the first 3 accounts, unique by id
const accounts = replies
.map((r) => r.account)
.filter((a, i, arr) => arr.findIndex((b) => b.id === a.id) === i)
.slice(0, 3);
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const open =
(!hasParentThread || replies.length === 1) && (isBrief || !hasManyStatuses);
return (
<details class="replies" open={open}>
<summary hidden={open}>
<span class="avatars">
{accounts.map((a) => (
<Avatar
key={a.id}
url={a.avatarStatic}
title={`${a.displayName} @${a.username}`}
/>
))}
</span>
<span>
<span title={replies.length}>{shortenNumber(replies.length)}</span>{' '}
repl
{replies.length === 1 ? 'y' : 'ies'}
</span>
{!sameCount && totalComments > 1 && (
<>
{' '}
&middot;{' '}
<span>
<span title={totalComments}>{shortenNumber(totalComments)}</span>{' '}
comment
{totalComments === 1 ? '' : 's'}
</span>
</>
)}
</summary>
<ul>
{replies.map((r) => (
<li key={r.id}>
<Link
class="status-link"
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to={instance ? `/${instance}/s/${r.id}` : `/s/${r.id}`}
onClick={() => {
resetScrollPosition(r.id);
}}
>
<Status
statusID={r.id}
instance={instance}
withinContext
size="s"
enableTranslate
/>
{!r.replies?.length && r.repliesCount > 0 && (
<div class="replies-link">
<Icon icon="comment" />{' '}
<span title={r.repliesCount}>
{shortenNumber(r.repliesCount)}
</span>
</div>
)}
</Link>
{r.replies?.length && (
<SubComments
instance={instance}
hasManyStatuses={hasManyStatuses}
replies={r.replies}
/>
)}
</li>
))}
</ul>
</details>
);
}
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export default StatusPage;