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import './quick-mention.css';
import React from 'dom-chef';
import select from 'select-dom';
import delegate, {DelegateEvent} from 'delegate-it';
import insertText from 'insert-text-textarea';
import replyIcon from 'octicon/reply.svg';
import features from '../libs/features';
import {getUsername} from '../libs/utils';
function mentionUser({delegateTarget: button}: DelegateEvent): void {
const userMention = button.parentElement!.querySelector('img')!.alt;
const newComment = select<HTMLTextAreaElement>('#new_comment_field')!;
newComment.focus();
// If the new comment field has selected text, don’t replace it
newComment.selectionStart = newComment.selectionEnd;
// If the cursor is preceded by a space (or is at place 0), don't add a space before the mention
const precedingCharacter = newComment.value.slice(newComment.selectionStart - 1, newComment.selectionStart);
const spacer = /\s|^$/.test(precedingCharacter) ? '' : ' ';
// The space after closes the autocomplete box and places the cursor where the user would start typing
insertText(newComment, `${spacer}${userMention} `);
}
function init(): void | false {
if (select.exists('.conversation-limited')) {
return false; // Discussion is locked
}
// `:first-child` avoids app badges #2630
for (const avatar of select.all(`.TimelineItem-avatar > :first-child:not([href="/${getUsername()}"]):not(.rgh-quick-mention)`)) {
const userMention = select('img', avatar)!.alt;
avatar.classList.add('rgh-quick-mention');
avatar.after(
<button
type="button"
className="rgh-quick-mention tooltipped tooltipped-e btn-link"
aria-label={`Mention ${userMention} in a new comment`}
>
{replyIcon()}
</button>
);
}
delegate('#discussion_bucket', 'button.rgh-quick-mention', 'click', mentionUser);
}
features.add({
id: __featureName__,
description: 'Adds a button to @mention a user in discussions.',
screenshot: 'https://user-images.githubusercontent.com/1402241/70406615-f445d580-1a73-11ea-9ab1-bf6bd9aa70a3.gif',
include: [
features.isIssue,
features.isPRConversation
],
load: features.onNewComments,
init
});
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