lbry-desktop/ui/component/comment/view.jsx
infinite-persistence 74986a8b3a
Comments: simplify blocked replies display
Previously, we decide when to display "Show More" based on the current fetched reply count vs. total replies in Commentron. It was already troublesome as `comment.List` and `comment.replies` give different values (one includes blocked content, while another does not).

Now, we are further filtering the list with Commentron blocklists (personal, admin, moderator), so it is not feasible to run the logic based on reply count.

## Solution
- Keep track of number of remaining pages instead and use that to determine when to display "Show More".
  - While it doesn't solve the "Show N replies" mismatch (YT has this problem too), it prevents the button from lingering.
- In the event that all replies are blocked, just show an empty space (same as YT). I didn't like the previous version that cluttered the space with "comment(s) blocked".
2021-08-24 16:55:36 +08:00

429 lines
14 KiB
JavaScript

// @flow
import * as ICONS from 'constants/icons';
import * as PAGES from 'constants/pages';
import { SORT_BY, COMMENT_PAGE_SIZE_REPLIES } from 'constants/comment';
import { FF_MAX_CHARS_IN_COMMENT } from 'constants/form-field';
import { SITE_NAME, SIMPLE_SITE, ENABLE_COMMENT_REACTIONS } from 'config';
import React, { useEffect, useState } from 'react';
import { parseURI } from 'lbry-redux';
import DateTime from 'component/dateTime';
import Button from 'component/button';
import Expandable from 'component/expandable';
import MarkdownPreview from 'component/common/markdown-preview';
import Tooltip from 'component/common/tooltip';
import ChannelThumbnail from 'component/channelThumbnail';
import { Menu, MenuButton } from '@reach/menu-button';
import Icon from 'component/common/icon';
import { FormField, Form } from 'component/common/form';
import classnames from 'classnames';
import usePersistedState from 'effects/use-persisted-state';
import CommentReactions from 'component/commentReactions';
import CommentsReplies from 'component/commentsReplies';
import { useHistory } from 'react-router';
import CommentCreate from 'component/commentCreate';
import CommentMenuList from 'component/commentMenuList';
import UriIndicator from 'component/uriIndicator';
import CreditAmount from 'component/common/credit-amount';
const AUTO_EXPAND_ALL_REPLIES = false;
type Props = {
clearPlayingUri: () => void,
uri: string,
claim: StreamClaim,
author: ?string, // LBRY Channel Name, e.g. @channel
authorUri: string, // full LBRY Channel URI: lbry://@channel#123...
commentId: string, // sha256 digest identifying the comment
message: string, // comment body
timePosted: number, // Comment timestamp
channelIsBlocked: boolean, // if the channel is blacklisted in the app
claimIsMine: boolean, // if you control the claim which this comment was posted on
commentIsMine: boolean, // if this comment was signed by an owned channel
updateComment: (string, string) => void,
fetchReplies: (string, string, number, number, number) => void,
totalReplyPages: number,
commentModBlock: (string) => void,
linkedCommentId?: string,
linkedCommentAncestors: { [string]: Array<string> },
myChannels: ?Array<ChannelClaim>,
commentingEnabled: boolean,
doToast: ({ message: string }) => void,
isTopLevel?: boolean,
threadDepth: number,
isPinned: boolean,
othersReacts: ?{
like: number,
dislike: number,
},
commentIdentityChannel: any,
activeChannelClaim: ?ChannelClaim,
playingUri: ?PlayingUri,
stakedLevel: number,
supportAmount: number,
numDirectReplies: number,
isModerator: boolean,
isGlobalMod: boolean,
isFiat: boolean,
};
const LENGTH_TO_COLLAPSE = 300;
const ESCAPE_KEY = 27;
function Comment(props: Props) {
const {
clearPlayingUri,
claim,
uri,
author,
authorUri,
timePosted,
message,
channelIsBlocked,
commentIsMine,
commentId,
updateComment,
fetchReplies,
totalReplyPages,
linkedCommentId,
linkedCommentAncestors,
commentingEnabled,
myChannels,
doToast,
isTopLevel,
threadDepth,
isPinned,
othersReacts,
playingUri,
stakedLevel,
supportAmount,
numDirectReplies,
isModerator,
isGlobalMod,
isFiat,
} = props;
const {
push,
replace,
location: { pathname, search },
} = useHistory();
const [isReplying, setReplying] = React.useState(false);
const [isEditing, setEditing] = useState(false);
const [editedMessage, setCommentValue] = useState(message);
const [charCount, setCharCount] = useState(editedMessage.length);
// used for controlling the visibility of the menu icon
const [mouseIsHovering, setMouseHover] = useState(false);
const [showReplies, setShowReplies] = useState(false);
const [page, setPage] = useState(0);
const [advancedEditor] = usePersistedState('comment-editor-mode', false);
const [displayDeadComment, setDisplayDeadComment] = React.useState(false);
const hasChannels = myChannels && myChannels.length > 0;
const likesCount = (othersReacts && othersReacts.like) || 0;
const dislikesCount = (othersReacts && othersReacts.dislike) || 0;
const totalLikesAndDislikes = likesCount + dislikesCount;
const slimedToDeath = totalLikesAndDislikes >= 5 && dislikesCount / totalLikesAndDislikes > 0.8;
const commentByOwnerOfContent = claim && claim.signing_channel && claim.signing_channel.permanent_url === authorUri;
let channelOwnerOfContent;
try {
const { channelName } = parseURI(uri);
if (channelName) {
channelOwnerOfContent = channelName;
}
} catch (e) {}
// Auto-expand (limited to linked-comments for now, but can be for all)
useEffect(() => {
const isInLinkedCommentChain =
linkedCommentId &&
linkedCommentAncestors[linkedCommentId] &&
linkedCommentAncestors[linkedCommentId].includes(commentId);
if (isInLinkedCommentChain || AUTO_EXPAND_ALL_REPLIES) {
setShowReplies(true);
setPage(1);
}
}, []); // eslint-disable-line react-hooks/exhaustive-deps
useEffect(() => {
if (isEditing) {
setCharCount(editedMessage.length);
// a user will try and press the escape key to cancel editing their comment
const handleEscape = (event) => {
if (event.keyCode === ESCAPE_KEY) {
setEditing(false);
}
};
window.addEventListener('keydown', handleEscape);
// removes the listener so it doesn't cause problems elsewhere in the app
return () => {
window.removeEventListener('keydown', handleEscape);
};
}
}, [author, authorUri, editedMessage, isEditing, setEditing]);
useEffect(() => {
if (page > 0) {
fetchReplies(uri, commentId, page, COMMENT_PAGE_SIZE_REPLIES, SORT_BY.OLDEST);
}
}, [page, uri, commentId, fetchReplies]);
function handleEditMessageChanged(event) {
setCommentValue(!SIMPLE_SITE && advancedEditor ? event : event.target.value);
}
function handleEditComment() {
if (playingUri && playingUri.source === 'comment') {
clearPlayingUri();
}
setEditing(true);
}
function handleSubmit() {
updateComment(commentId, editedMessage);
setEditing(false);
}
function handleCommentReply() {
if (!hasChannels) {
push(`/$/${PAGES.CHANNEL_NEW}?redirect=${pathname}`);
doToast({ message: __('A channel is required to comment on %SITE_NAME%', { SITE_NAME }) });
} else {
setReplying(!isReplying);
}
}
function handleTimeClick() {
const urlParams = new URLSearchParams(search);
urlParams.delete('lc');
urlParams.append('lc', commentId);
replace(`${pathname}?${urlParams.toString()}`);
}
return (
<li
className={classnames('comment', {
'comment--top-level': isTopLevel,
'comment--reply': !isTopLevel,
'comment--superchat': supportAmount > 0,
})}
id={commentId}
onMouseOver={() => setMouseHover(true)}
onMouseOut={() => setMouseHover(false)}
>
<div
className={classnames('comment__content', {
'comment--highlighted': linkedCommentId && linkedCommentId === commentId,
'comment--slimed': slimedToDeath && !displayDeadComment,
})}
>
<div className="comment__thumbnail-wrapper">
{authorUri ? (
<ChannelThumbnail uri={authorUri} obscure={channelIsBlocked} xsmall className="comment__author-thumbnail" />
) : (
<ChannelThumbnail xsmall className="comment__author-thumbnail" />
)}
</div>
<div className="comment__body-container">
<div className="comment__meta">
<div className="comment__meta-information">
{isGlobalMod && (
<Tooltip label={__('Admin')}>
<span className="comment__badge comment__badge--global-mod">
<Icon icon={ICONS.BADGE_MOD} size={20} />
</span>
</Tooltip>
)}
{isModerator && (
<Tooltip label={__('Moderator')}>
<span className="comment__badge comment__badge--mod">
<Icon icon={ICONS.BADGE_MOD} size={20} />
</span>
</Tooltip>
)}
{!author ? (
<span className="comment__author">{__('Anonymous')}</span>
) : (
<UriIndicator
className={classnames('comment__author', {
'comment__author--creator': commentByOwnerOfContent,
})}
link
uri={authorUri}
/>
)}
<Button
className="comment__time"
onClick={handleTimeClick}
label={<DateTime date={timePosted} timeAgo />}
/>
{supportAmount > 0 && <CreditAmount isFiat={isFiat} amount={supportAmount} superChatLight size={12} />}
{isPinned && (
<span className="comment__pin">
<Icon icon={ICONS.PIN} size={14} />
{channelOwnerOfContent
? __('Pinned by @%channel%', { channel: channelOwnerOfContent })
: __('Pinned by creator')}
</span>
)}
</div>
<div className="comment__menu">
<Menu>
<MenuButton className="menu__button">
<Icon
size={18}
className={mouseIsHovering ? 'comment__menu-icon--hovering' : 'comment__menu-icon'}
icon={ICONS.MORE_VERTICAL}
/>
</MenuButton>
<CommentMenuList
uri={uri}
isTopLevel={isTopLevel}
isPinned={isPinned}
commentId={commentId}
authorUri={authorUri}
commentIsMine={commentIsMine}
handleEditComment={handleEditComment}
supportAmount={supportAmount}
/>
</Menu>
</div>
</div>
<div>
{isEditing ? (
<Form onSubmit={handleSubmit}>
<FormField
className="comment__edit-input"
type={!SIMPLE_SITE && advancedEditor ? 'markdown' : 'textarea'}
name="editing_comment"
value={editedMessage}
charCount={charCount}
onChange={handleEditMessageChanged}
textAreaMaxLength={FF_MAX_CHARS_IN_COMMENT}
/>
<div className="section__actions section__actions--no-margin">
<Button
button="primary"
type="submit"
label={__('Done')}
requiresAuth={IS_WEB}
disabled={message === editedMessage}
/>
<Button button="link" label={__('Cancel')} onClick={() => setEditing(false)} />
</div>
</Form>
) : (
<>
<div className="comment__message">
{slimedToDeath && !displayDeadComment ? (
<div onClick={() => setDisplayDeadComment(true)} className="comment__dead">
{__('This comment was slimed to death.')} <Icon icon={ICONS.SLIME_ACTIVE} />
</div>
) : editedMessage.length >= LENGTH_TO_COLLAPSE ? (
<Expandable>
<MarkdownPreview
content={message}
promptLinks
parentCommentId={commentId}
stakedLevel={stakedLevel}
/>
</Expandable>
) : (
<MarkdownPreview
content={message}
promptLinks
parentCommentId={commentId}
stakedLevel={stakedLevel}
/>
)}
</div>
<div className="comment__actions">
{threadDepth !== 0 && (
<Button
requiresAuth={IS_WEB}
label={commentingEnabled ? __('Reply') : __('Log in to reply')}
className="comment__action"
onClick={handleCommentReply}
icon={ICONS.REPLY}
/>
)}
{ENABLE_COMMENT_REACTIONS && <CommentReactions uri={uri} commentId={commentId} />}
</div>
{numDirectReplies > 0 && !showReplies && (
<div className="comment__actions">
<Button
label={
numDirectReplies < 2
? __('Show reply')
: __('Show %count% replies', { count: numDirectReplies })
}
button="link"
onClick={() => {
setShowReplies(true);
if (page === 0) {
setPage(1);
}
}}
icon={ICONS.DOWN}
/>
</div>
)}
{numDirectReplies > 0 && showReplies && (
<div className="comment__actions">
<Button
label={__('Hide replies')}
button="link"
onClick={() => setShowReplies(false)}
icon={ICONS.UP}
/>
</div>
)}
{isReplying && (
<CommentCreate
isReply
uri={uri}
parentId={commentId}
onDoneReplying={() => {
setShowReplies(true);
setReplying(false);
}}
onCancelReplying={() => {
setReplying(false);
}}
/>
)}
</>
)}
</div>
</div>
</div>
{showReplies && (
<CommentsReplies
threadDepth={threadDepth - 1}
uri={uri}
parentId={commentId}
linkedCommentId={linkedCommentId}
numDirectReplies={numDirectReplies}
onShowMore={() => setPage(page + 1)}
hasMore={page < totalReplyPages}
/>
)}
</li>
);
}
export default Comment;