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Merge pull request #6508 from saltrafael/live_comments

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Fix 'Recent Comments' button for livestreams
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Dispatch 2021-07-20 12:33:52 -07:00 committed by GitHub
commit e138673d27
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1 changed files with 16 additions and 14 deletions
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30
ui/component/livestreamComments/view.jsx
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@ -55,6 +55,9 @@ export default function LivestreamComments(props: Props) {
const commentsLength = comments && comments.length;
const commentsToDisplay = viewMode === VIEW_MODE_CHAT ? comments : superChats;
const discussionElement = document.querySelector('.livestream__comments');
const commentElement = document.querySelector('.livestream-comment');
// todo: implement comment_list --mine in SDK so redux can grab with selectCommentIsMine
function isMyComment(channelId: string) {
if (myChannels != null && channelId != null) {
@ -81,19 +84,16 @@ export default function LivestreamComments(props: Props) {
};
}, [claimId, uri, doCommentList, doSuperChatList, doCommentSocketConnect, doCommentSocketDisconnect]);
React.useEffect(() => {
const discussionElement = document.querySelector('.livestream__comments');
const commentElement = document.querySelector('.livestream-comment');
const handleScroll = React.useCallback(() => {
if (discussionElement) {
const negativeCommentHeight = commentElement && -1 * commentElement.offsetHeight;
const isAtRecent = negativeCommentHeight && discussionElement.scrollTop >= negativeCommentHeight;
function handleScroll() {
if (discussionElement) {
const negativeCommentHeight = commentElement && -1 * commentElement.offsetHeight;
const isAtRecent = negativeCommentHeight && discussionElement.scrollTop >= negativeCommentHeight;
setScrollBottom(isAtRecent);
}
setScrollBottom(isAtRecent);
}
}, [commentElement, discussionElement]);
React.useEffect(() => {
if (discussionElement) {
discussionElement.addEventListener('scroll', handleScroll);
@ -113,15 +113,17 @@ export default function LivestreamComments(props: Props) {
return () => discussionElement.removeEventListener('scroll', handleScroll);
}
}, [commentsLength, performedInitialScroll, setPerformedInitialScroll, setScrollBottom]);
}, [commentsLength, discussionElement, handleScroll, performedInitialScroll, setPerformedInitialScroll]);
if (!claim) {
return null;
}
function scrollBack() {
const element = document.querySelector('.livestream__comments');
if (element) element.scrollTop = 0;
if (discussionElement) {
discussionElement.scrollTop = 0;
setScrollBottom(true);
}
}
return (
@ -209,7 +211,7 @@ export default function LivestreamComments(props: Props) {
button="alt"
className="livestream__comments-scroll__down"
label={__('Recent Comments')}
onClick={() => scrollBack()}
onClick={scrollBack}
/>
)}