Function mentionUser

source/features/quick-mention.tsx:42–56

({delegateTarget: button}: DelegateEvent)

}

function mentionUser({delegateTarget: button}: DelegateEvent): void {
	const userMention = getCommentAuthor(button.parentElement!);
	const newComment = $(fieldSelector);
	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
	insertTextIntoField(newComment, `${spacer}${prefixUserMention(userMention)} `);
}

function addButton(avatar: HTMLElement): void {
	const userMention = getCommentAuthor(avatar);