354 lines
12 KiB
JavaScript
354 lines
12 KiB
JavaScript
// @flow
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import * as ICONS from 'constants/icons';
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import * as PAGES from 'constants/pages';
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import { FF_MAX_CHARS_IN_COMMENT } from 'constants/form-field';
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import { SITE_NAME, SIMPLE_SITE, ENABLE_COMMENT_REACTIONS } from 'config';
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import React, { useEffect, useState } from 'react';
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import { parseURI } from 'lbry-redux';
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import { isEmpty } from 'util/object';
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import DateTime from 'component/dateTime';
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import Button from 'component/button';
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import Expandable from 'component/expandable';
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import MarkdownPreview from 'component/common/markdown-preview';
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import ChannelThumbnail from 'component/channelThumbnail';
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import { Menu, MenuList, MenuButton, MenuItem } from '@reach/menu-button';
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import Icon from 'component/common/icon';
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import { FormField, Form } from 'component/common/form';
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import classnames from 'classnames';
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import usePersistedState from 'effects/use-persisted-state';
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import CommentReactions from 'component/commentReactions';
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import CommentsReplies from 'component/commentsReplies';
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import { useHistory } from 'react-router';
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import CommentCreate from 'component/commentCreate';
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type Props = {
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closeInlinePlayer: () => void,
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uri: string,
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author: ?string, // LBRY Channel Name, e.g. @channel
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authorUri: string, // full LBRY Channel URI: lbry://@channel#123...
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commentId: string, // sha256 digest identifying the comment
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message: string, // comment body
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timePosted: number, // Comment timestamp
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channel: ?Claim, // Channel Claim, retrieved to obtain thumbnail
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pending?: boolean,
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resolveUri: string => void, // resolves the URI
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isResolvingUri: boolean, // if the URI is currently being resolved
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channelIsBlocked: boolean, // if the channel is blacklisted in the app
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claimIsMine: boolean, // if you control the claim which this comment was posted on
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commentIsMine: boolean, // if this comment was signed by an owned channel
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updateComment: (string, string) => void,
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deleteComment: string => void,
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blockChannel: string => void,
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linkedComment?: any,
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myChannels: ?Array<ChannelClaim>,
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commentingEnabled: boolean,
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doToast: ({ message: string }) => void,
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isTopLevel?: boolean,
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threadDepth: number,
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isPinned: boolean,
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othersReacts: ?{
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like: number,
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dislike: number,
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},
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pinComment: (string, boolean) => Promise<any>,
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fetchComments: string => void,
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commentIdentityChannel: any,
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contentChannel: any,
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};
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const LENGTH_TO_COLLAPSE = 300;
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const ESCAPE_KEY = 27;
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function Comment(props: Props) {
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const {
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closeInlinePlayer,
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uri,
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author,
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authorUri,
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timePosted,
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message,
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pending,
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channel,
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isResolvingUri,
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resolveUri,
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channelIsBlocked,
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commentIsMine,
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commentId,
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updateComment,
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deleteComment,
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blockChannel,
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linkedComment,
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commentingEnabled,
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myChannels,
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doToast,
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isTopLevel,
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threadDepth,
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isPinned,
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pinComment,
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fetchComments,
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othersReacts,
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commentIdentityChannel,
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contentChannel,
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} = props;
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const {
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push,
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replace,
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location: { pathname, search },
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} = useHistory();
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const [isReplying, setReplying] = React.useState(false);
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const [isEditing, setEditing] = useState(false);
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const [editedMessage, setCommentValue] = useState(message);
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const [charCount, setCharCount] = useState(editedMessage.length);
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// used for controlling the visibility of the menu icon
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const [mouseIsHovering, setMouseHover] = useState(false);
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const [advancedEditor] = usePersistedState('comment-editor-mode', false);
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const [displayDeadComment, setDisplayDeadComment] = React.useState(false);
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const hasChannels = myChannels && myChannels.length > 0;
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const likesCount = (othersReacts && othersReacts.like) || 0;
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const dislikesCount = (othersReacts && othersReacts.dislike) || 0;
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const totalLikesAndDislikes = likesCount + dislikesCount;
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const slimedToDeath = totalLikesAndDislikes >= 5 && dislikesCount / totalLikesAndDislikes > 0.8;
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// to debounce subsequent requests
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const shouldFetch =
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channel === undefined ||
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(channel !== null && channel.value_type === 'channel' && isEmpty(channel.meta) && !pending);
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let channelOwnerOfContent;
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try {
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const { channelName } = parseURI(uri);
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if (channelName) {
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channelOwnerOfContent = channelName;
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}
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} catch (e) {}
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useEffect(() => {
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// If author was extracted from the URI, then it must be valid.
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if (authorUri && author && !isResolvingUri && shouldFetch) {
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resolveUri(authorUri);
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}
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if (isEditing) {
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setCharCount(editedMessage.length);
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// a user will try and press the escape key to cancel editing their comment
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const handleEscape = event => {
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if (event.keyCode === ESCAPE_KEY) {
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setEditing(false);
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}
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};
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window.addEventListener('keydown', handleEscape);
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// removes the listener so it doesn't cause problems elsewhere in the app
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return () => {
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window.removeEventListener('keydown', handleEscape);
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};
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}
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}, [isResolvingUri, shouldFetch, author, authorUri, resolveUri, editedMessage, isEditing, setEditing]);
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function handleEditMessageChanged(event) {
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setCommentValue(!SIMPLE_SITE && advancedEditor ? event : event.target.value);
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}
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function handlePinComment(commentId, remove) {
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pinComment(commentId, remove).then(() => fetchComments(uri));
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}
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function handleEditComment() {
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closeInlinePlayer();
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setEditing(true);
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}
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function handleDeleteComment() {
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closeInlinePlayer();
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deleteComment(commentId);
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}
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function handleSubmit() {
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updateComment(commentId, editedMessage);
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setEditing(false);
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}
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function handleCommentReply() {
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if (!hasChannels) {
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push(`/$/${PAGES.CHANNEL_NEW}?redirect=${pathname}`);
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doToast({ message: __('A channel is required to comment on %SITE_NAME%', { SITE_NAME }) });
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} else {
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setReplying(!isReplying);
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}
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}
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function handleTimeClick() {
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const urlParams = new URLSearchParams(search);
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urlParams.delete('lc');
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urlParams.append('lc', commentId);
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replace(`${pathname}?${urlParams.toString()}`);
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}
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return (
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<li
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className={classnames('comment', {
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'comment--top-level': isTopLevel,
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'comment--reply': !isTopLevel,
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})}
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id={commentId}
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onMouseOver={() => setMouseHover(true)}
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onMouseOut={() => setMouseHover(false)}
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>
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<div
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className={classnames('comment__content', {
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'comment--highlighted': linkedComment && linkedComment.comment_id === commentId,
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'comment--slimed': slimedToDeath && !displayDeadComment,
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})}
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>
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<div className="comment__thumbnail-wrapper">
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{authorUri ? (
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<ChannelThumbnail uri={authorUri} obscure={channelIsBlocked} small className="comment__author-thumbnail" />
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) : (
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<ChannelThumbnail small className="comment__author-thumbnail" />
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)}
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</div>
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<div className="comment__body_container">
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<div className="comment__meta">
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<div className="comment__meta-information">
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{!author ? (
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<span className="comment__author">{__('Anonymous')}</span>
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) : (
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<Button
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className="button--uri-indicator truncated-text comment__author"
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navigate={authorUri}
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label={author}
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/>
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)}
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<Button
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className="comment__time"
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onClick={handleTimeClick}
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label={<DateTime date={timePosted} timeAgo />}
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/>
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{isPinned && (
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<span className="comment__pin">
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<Icon icon={ICONS.PIN} size={14} />
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{channelOwnerOfContent
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? __('Pinned by @%channel%', { channel: channelOwnerOfContent })
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: __('Pinned by creator')}
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</span>
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)}
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</div>
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<div className="comment__menu">
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<Menu>
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<MenuButton>
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<Icon
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size={18}
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className={mouseIsHovering ? 'comment__menu-icon--hovering' : 'comment__menu-icon'}
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icon={ICONS.MORE_VERTICAL}
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/>
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</MenuButton>
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<MenuList className="menu__list--comments">
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{commentIsMine ? (
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<>
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<MenuItem className="comment__menu-option menu__link" onSelect={handleEditComment}>
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<Icon aria-hidden icon={ICONS.EDIT} />
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{__('Edit')}
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</MenuItem>
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<MenuItem className="comment__menu-option menu__link" onSelect={handleDeleteComment}>
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<Icon aria-hidden icon={ICONS.DELETE} />
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{__('Delete')}
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</MenuItem>
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</>
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) : (
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<MenuItem className="comment__menu-option menu__link" onSelect={() => blockChannel(authorUri)}>
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<Icon aria-hidden icon={ICONS.NO} />
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{__('Block Channel')}
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</MenuItem>
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)}
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{commentIdentityChannel === contentChannel && isTopLevel && (
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<MenuItem
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className="comment__menu-option menu__link"
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onSelect={
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isPinned ? () => handlePinComment(commentId, true) : () => handlePinComment(commentId, false)
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}
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>
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<span className={'button__content'}>
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<Icon aria-hidden icon={ICONS.PIN} className={'icon'} />
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{isPinned ? __('Unpin') : __('Pin')}
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</span>
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</MenuItem>
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)}
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</MenuList>
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</Menu>
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</div>
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</div>
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<div>
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{isEditing ? (
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<Form onSubmit={handleSubmit}>
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<FormField
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type={!SIMPLE_SITE && advancedEditor ? 'markdown' : 'textarea'}
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name="editing_comment"
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value={editedMessage}
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charCount={charCount}
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onChange={handleEditMessageChanged}
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textAreaMaxLength={FF_MAX_CHARS_IN_COMMENT}
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/>
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<div className="section__actions">
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<Button
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button="primary"
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type="submit"
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label={__('Done')}
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requiresAuth={IS_WEB}
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disabled={message === editedMessage}
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/>
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<Button button="link" label={__('Cancel')} onClick={() => setEditing(false)} />
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</div>
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</Form>
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) : (
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<>
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<div className="comment__message">
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{slimedToDeath && !displayDeadComment ? (
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<div onClick={() => setDisplayDeadComment(true)} className="comment__dead">
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{__('This comment was slimed to death.')} <Icon icon={ICONS.SLIME_ACTIVE} />
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</div>
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) : editedMessage.length >= LENGTH_TO_COLLAPSE ? (
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<Expandable>
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<MarkdownPreview content={message} promptLinks parentCommentId={commentId} />
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</Expandable>
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) : (
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<MarkdownPreview content={message} promptLinks parentCommentId={commentId} />
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)}
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</div>
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<div className="comment__actions">
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{threadDepth !== 0 && (
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<Button
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requiresAuth={IS_WEB}
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label={commentingEnabled ? __('Reply') : __('Log in to reply')}
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className="comment__action"
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onClick={handleCommentReply}
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icon={ICONS.REPLY}
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/>
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)}
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{ENABLE_COMMENT_REACTIONS && <CommentReactions uri={uri} commentId={commentId} />}
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</div>
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{isReplying && (
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<CommentCreate
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isReply
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uri={uri}
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parentId={commentId}
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onDoneReplying={() => setReplying(false)}
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onCancelReplying={() => setReplying(false)}
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/>
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)}
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</>
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)}
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</div>
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</div>
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</div>
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<CommentsReplies threadDepth={threadDepth - 1} uri={uri} parentId={commentId} linkedComment={linkedComment} />
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</li>
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);
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}
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export default Comment;
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