lbry-desktop/ui/component/livestreamChatLayout/view.jsx
2022-03-03 11:39:42 -05:00

417 lines
14 KiB
JavaScript

// @flow
import 'scss/component/_livestream-chat.scss';
// $FlowFixMe
import { grey } from '@mui/material/colors';
import { useIsMobile } from 'effects/use-screensize';
import * as ICONS from 'constants/icons';
import Button from 'component/button';
import classnames from 'classnames';
import CommentCreate from 'component/commentCreate';
import CreditAmount from 'component/common/credit-amount';
import LivestreamComment from 'component/livestreamComment';
import LivestreamComments from 'component/livestreamComments';
import LivestreamSuperchats from './livestream-superchats';
import LivestreamMenu from './livestream-menu';
import React from 'react';
import Yrbl from 'component/yrbl';
import { getTipValues } from 'util/livestream';
import Slide from '@mui/material/Slide';
export const VIEW_MODES = {
CHAT: 'chat',
SUPERCHAT: 'sc',
};
const COMMENT_SCROLL_TIMEOUT = 25;
type Props = {
embed?: boolean,
isPopoutWindow?: boolean,
uri: string,
hideHeader?: boolean,
superchatsHidden?: boolean,
customViewMode?: string,
setCustomViewMode?: (any) => void,
// redux
claimId?: string,
comments: Array<Comment>,
pinnedComments: Array<Comment>,
superChats: Array<Comment>,
theme: string,
doCommentList: (
uri: string,
parentId: ?string,
page: number,
pageSize: number,
sortBy: ?number,
isLivestream: boolean
) => void,
doResolveUris: (uris: Array<string>, cache: boolean) => void,
doSuperChatList: (uri: string) => void,
};
export default function LivestreamChatLayout(props: Props) {
const {
claimId,
comments: commentsByChronologicalOrder,
embed,
isPopoutWindow,
pinnedComments,
superChats: superChatsByAmount,
uri,
hideHeader,
superchatsHidden,
customViewMode,
theme,
setCustomViewMode,
doCommentList,
doResolveUris,
doSuperChatList,
} = props;
const isMobile = useIsMobile() && !isPopoutWindow;
const webElement = document.querySelector('.livestream__comments');
const mobileElement = document.querySelector('.livestream__comments--mobile');
const discussionElement = isMobile ? mobileElement : webElement;
const allCommentsElem = document.querySelectorAll('.livestream__comment');
const lastCommentElem = allCommentsElem && allCommentsElem[allCommentsElem.length - 1];
const [viewMode, setViewMode] = React.useState(VIEW_MODES.CHAT);
const [scrollPos, setScrollPos] = React.useState(0);
const [showPinned, setShowPinned] = React.useState(true);
const [resolvingSuperChats, setResolvingSuperChats] = React.useState(false);
const [openedPopoutWindow, setPopoutWindow] = React.useState(undefined);
const [chatHidden, setChatHidden] = React.useState(false);
const [didInitialScroll, setDidInitialScroll] = React.useState(false);
const [minScrollHeight, setMinScrollHeight] = React.useState(0);
const [keyboardOpened, setKeyboardOpened] = React.useState(false);
const [superchatsAmount, setSuperchatsAmount] = React.useState(false);
const [chatElement, setChatElement] = React.useState();
let superChatsByChronologicalOrder = [];
if (superChatsByAmount) superChatsByAmount.forEach((chat) => superChatsByChronologicalOrder.push(chat));
if (superChatsByChronologicalOrder.length > 0) {
superChatsByChronologicalOrder.sort((a, b) => b.timestamp - a.timestamp);
}
const commentsToDisplay =
viewMode === VIEW_MODES.CHAT ? commentsByChronologicalOrder : superChatsByChronologicalOrder;
const commentsLength = commentsToDisplay && commentsToDisplay.length;
const pinnedComment = pinnedComments.length > 0 ? pinnedComments[0] : null;
const { superChatsChannelUrls, superChatsFiatAmount, superChatsLBCAmount } = getTipValues(
superChatsByChronologicalOrder
);
const scrolledPastRecent = Boolean(
(viewMode !== VIEW_MODES.SUPERCHAT || !resolvingSuperChats) &&
(!isMobile ? scrollPos < 0 : scrollPos < minScrollHeight)
);
const restoreScrollPos = React.useCallback(() => {
if (discussionElement) {
discussionElement.scrollTop = !isMobile ? 0 : discussionElement.scrollHeight;
if (isMobile) {
const pos = lastCommentElem && discussionElement.scrollTop - lastCommentElem.getBoundingClientRect().height;
if (!minScrollHeight || minScrollHeight !== pos) {
setMinScrollHeight(pos);
}
}
}
}, [discussionElement, isMobile, lastCommentElem, minScrollHeight]);
function toggleClick(toggleMode: string) {
if (toggleMode === VIEW_MODES.SUPERCHAT) {
toggleSuperChat();
} else {
setViewMode(VIEW_MODES.CHAT);
}
if (discussionElement) {
discussionElement.scrollTop = 0;
}
}
function toggleSuperChat() {
const hasNewSuperchats = !superchatsAmount || superChatsChannelUrls.length !== superchatsAmount;
if (superChatsChannelUrls && hasNewSuperchats) {
setSuperchatsAmount(superChatsChannelUrls.length);
doResolveUris(superChatsChannelUrls, false);
}
setViewMode(VIEW_MODES.SUPERCHAT);
if (setCustomViewMode) setCustomViewMode(VIEW_MODES.SUPERCHAT);
}
React.useEffect(() => {
if (customViewMode && customViewMode !== viewMode) {
setViewMode(customViewMode);
}
}, [customViewMode, viewMode]);
React.useEffect(() => {
if (claimId) {
doCommentList(uri, undefined, 1, 75, undefined, true);
doSuperChatList(uri);
}
}, [claimId, uri, doCommentList, doSuperChatList]);
React.useEffect(() => {
if (isMobile && !didInitialScroll) {
restoreScrollPos();
setDidInitialScroll(true);
}
}, [didInitialScroll, isMobile, restoreScrollPos, viewMode]);
React.useEffect(() => {
if (discussionElement && !openedPopoutWindow) setChatElement(discussionElement);
}, [discussionElement, openedPopoutWindow]);
// Register scroll handler (TODO: Should throttle/debounce)
React.useEffect(() => {
function handleScroll() {
if (chatElement) {
const scrollTop = chatElement.scrollTop;
if (scrollTop !== scrollPos) {
setScrollPos(scrollTop);
}
}
}
if (chatElement) {
chatElement.addEventListener('scroll', handleScroll);
return () => chatElement.removeEventListener('scroll', handleScroll);
}
}, [chatElement, scrollPos]);
// Retain scrollPos=0 when receiving new messages.
React.useEffect(() => {
if (discussionElement && commentsLength > 0) {
// Only update comment scroll if the user hasn't scrolled up to view old comments
// $FlowFixMe
if (scrollPos && (!isMobile || minScrollHeight) && scrollPos >= minScrollHeight) {
// +ve scrollPos: not scrolled (Usually, there'll be a few pixels beyond 0).
// -ve scrollPos: user scrolled.
const timer = setTimeout(() => {
// Use a timer here to ensure we reset after the new comment has been rendered.
if (!isMobile) {
discussionElement.scrollTop = 0;
} else {
restoreScrollPos();
}
}, COMMENT_SCROLL_TIMEOUT);
return () => clearTimeout(timer);
}
}
// eslint-disable-next-line react-hooks/exhaustive-deps
}, [commentsLength]); // (Just respond to 'commentsLength' updates and nothing else)
// Restore Scroll Pos after mobile input opens keyboard and avoid scroll height conflicts
React.useEffect(() => {
if (keyboardOpened) {
const timer = setTimeout(() => {
restoreScrollPos();
setKeyboardOpened(false);
}, 300);
return () => clearTimeout(timer);
}
}, [keyboardOpened, restoreScrollPos]);
if (!claimId) return null;
if (openedPopoutWindow || chatHidden) {
return (
<div className="card livestream__chat">
<div className="card__header--between livestreamDiscussion__header">
<div className="card__title-section--small livestreamDiscussion__title">{__('Live Chat')}</div>
</div>
<div className="livestreamComments__wrapper">
<div className="main--empty">
<Yrbl
title={__('Chat Hidden')}
actions={
<div className="section__actions">
{openedPopoutWindow && (
<Button button="secondary" label={__('Close Popout')} onClick={() => openedPopoutWindow.close()} />
)}
{chatHidden && (
<Button button="secondary" label={__('Show Chat')} onClick={() => setChatHidden(false)} />
)}
</div>
}
/>
</div>
<div className="livestream__comment-create">
<CommentCreate isLivestream bottom uri={uri} disableInput />
</div>
</div>
</div>
);
}
const toggleProps = { viewMode, onClick: (toggleMode) => toggleClick(toggleMode) };
return (
<div className={classnames('card livestream__chat', { 'livestream__chat--popout': isPopoutWindow })}>
{!hideHeader && (
<div className="card__header--between livestreamDiscussion__header">
<div className="card__title-section--small livestreamDiscussion__title">
{__('Live Chat')}
<LivestreamMenu
isPopoutWindow={isPopoutWindow}
hideChat={() => setChatHidden(true)}
setPopoutWindow={(v) => setPopoutWindow(v)}
isMobile={isMobile}
/>
</div>
{superChatsByChronologicalOrder && (
<div className="recommended-content__toggles">
{/* the superchats in chronological order button */}
<ChatContentToggle {...toggleProps} toggleMode={VIEW_MODES.CHAT} label={__('Chat')} />
{/* the button to show superchats listed by most to least support amount */}
<ChatContentToggle
{...toggleProps}
toggleMode={VIEW_MODES.SUPERCHAT}
label={
<>
<CreditAmount amount={superChatsLBCAmount || 0} size={8} /> /&nbsp;
<CreditAmount amount={superChatsFiatAmount || 0} size={8} isFiat /> {__('Tipped')}
</>
}
/>
</div>
)}
</div>
)}
<div className="livestreamComments__wrapper">
<div
className={classnames('livestream-comments__top-actions', {
'livestream-comments__top-actions--mobile': isMobile,
})}
>
{isMobile && ((pinnedComment && showPinned) || (superChatsByAmount && !superchatsHidden)) && (
<MobileDrawerTopGradient theme={theme} />
)}
{viewMode === VIEW_MODES.CHAT && superChatsByAmount && (
<LivestreamSuperchats
superChats={superChatsByAmount}
toggleSuperChat={toggleSuperChat}
superchatsHidden={superchatsHidden}
isMobile={isMobile}
/>
)}
{pinnedComment &&
viewMode === VIEW_MODES.CHAT &&
(isMobile ? (
<Slide direction="left" in={showPinned} mountOnEnter unmountOnExit>
<div className="livestream-pinned__wrapper--mobile">
<LivestreamComment
comment={pinnedComment}
key={pinnedComment.comment_id}
uri={uri}
handleDismissPin={() => setShowPinned(false)}
isMobile
setResolvingSuperChats={setResolvingSuperChats}
/>
</div>
</Slide>
) : (
showPinned && (
<div className="livestream-pinned__wrapper">
<LivestreamComment comment={pinnedComment} key={pinnedComment.comment_id} uri={uri} />
<Button
title={__('Dismiss pinned comment')}
button="inverse"
className="close-button"
onClick={() => setShowPinned(false)}
icon={ICONS.REMOVE}
/>
</div>
)
))}
</div>
<LivestreamComments
uri={uri}
viewMode={viewMode}
comments={commentsToDisplay}
isMobile={isMobile}
restoreScrollPos={!scrolledPastRecent && isMobile && restoreScrollPos}
/>
{scrolledPastRecent && (
<Button
button="secondary"
className="livestream-comments__scroll-to-recent"
label={viewMode === VIEW_MODES.CHAT ? __('Recent Comments') : __('Recent Tips')}
onClick={restoreScrollPos}
iconRight={ICONS.DOWN}
/>
)}
<div className="livestream__comment-create">
<CommentCreate
isLivestream
bottom
embed={embed}
uri={uri}
onDoneReplying={restoreScrollPos}
onSlimInputClose={!scrolledPastRecent && isMobile ? () => setKeyboardOpened(true) : undefined}
/>
</div>
</div>
</div>
);
}
type ToggleProps = {
viewMode: string,
toggleMode: string,
label: string | any,
onClick: (string) => void,
};
const ChatContentToggle = (props: ToggleProps) => {
const { viewMode, toggleMode, label, onClick } = props;
return (
<Button
className={classnames('button-toggle', { 'button-toggle--active': viewMode === toggleMode })}
label={label}
onClick={() => onClick(toggleMode)}
/>
);
};
type GradientProps = {
theme: string,
};
const MobileDrawerTopGradient = (gradientProps: GradientProps) => {
const { theme } = gradientProps;
return (
<div
style={{
background: `linear-gradient(180deg, ${theme === 'light' ? grey[300] : grey[900]} 0, transparent 65%)`,
}}
className="livestream__top-gradient"
/>
);
};