Overleaf/services/web/app/views/project/editor/chat.jade

aside.chat(
	ng-controller="ChatController",
	ng-if="!anonymous"
)
	.messages(
		infinite-scroll="loadMoreMessages()"
		infinite-scroll-disabled="chat.loading || chat.atEnd"
		infinite-scroll-initialize="ui.chatOpen"
		infinite-scroll-upwards="true"
		update-scroll-bottom-on="updateScrollPosition"
	)
		.infinite-scroll-inner
			.loading(ng-show="chat.loading")
				i.fa.fa-fw.fa-spin.fa-refresh
				|   Loading...
			.no-messages.text-center.small(ng-show='!chat.loading && chat.messages.length == 0')
				| No messages
			.first-message.text-center(ng-show='!chat.loading && chat.messages.length == 0')
				| Send your first message
				br
				i.fa.fa-arrow-down
			ul.list-unstyled(
				ng-click="resetUnreadMessages()"
			)
				li.message(
					ng-repeat="message in chat.messages"
					ng-controller="ChatMessageController"
					ng-class="{'self': message.user.id == user.id }"
				)
					div.date(ng-if="$index == 0 || (message.timestamp - chat.messages[$index - 1].timestamp) > 5 * 60 * 1000")
						{{ message.timestamp | formatDate:'h:mm a' }} {{ message.timestamp | relativeDate }}
					span.avatar
						img(ng-src="{{message.user.gravatar_url}}?d=mm&s=50")
					div.message-wrapper
						.name(ng-if="message.user.id != user.id") {{ message.user.first_name }}
						.message(
							ng-style="{\
								'border-color': 'hsl({{ hue(message.user) }}, 70%, 70%)',\
								'background-color': 'hsl({{ hue(message.user) }}, 60%, 97%)'\
							}"
						)
							.arrow(ng-style="{'border-color': 'hsl({{ hue(message.user) }}, 70%, 70%)'}")
							p(
								mathjax,
								ng-repeat="content in message.contents track by $index"
							) {{ content }}

	.new-message
		textarea(
			placeholder="Your message...",
			on-enter="sendMessage()",
			ng-model="newMessageContent",
			ng-click="resetUnreadMessages()"
		)