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

aside.chat(
	ng-controller="ChatController"
)
	.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...
			ul.list-unstyled
				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}}")
					div.message-wrapper
						.name(ng-if="message.user.id != user.id") {{ message.user.first_name }}
						.message(
							ng-style="{\
								'border-color': 'hsl({{ hue(message.user) }}, 60%, 80%)',\
								'background-color': 'hsl({{ hue(message.user) }}, 60%, 97%)'\
							}"
						)
							.arrow(ng-style="{'border-color': 'hsl({{ hue(message.user) }}, 60%, 80%)'}")
							p(ng-repeat="content in message.contents track by $index") {{ content }}

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