thelounge/client/components/MessageCondensed.vue

<template>
	<div :class="[ 'msg', 'condensed', { closed: isCollapsed } ]">
		<div class="condensed-summary">
			<span class="time" />
			<span class="from" />
			<span
				class="content"
				@click="onCollapseClick">{{ condensedText }}<button
					class="toggle-button"
					aria-label="Toggle status messages" /></span>
		</div>
		<Message
			v-for="message in messages"
			:key="message.id"
			:network="network"
			:message="message" />
	</div>
</template>

<script>
const constants = require("../js/constants");
import Message from "./Message.vue";

export default {
	name: "MessageCondensed",
	components: {
		Message,
	},
	props: {
		network: Object,
		messages: Array,
		keepScrollPosition: Function,
	},
	data() {
		return {
			isCollapsed: true,
		};
	},
	computed: {
		condensedText() {
			const obj = {};

			constants.condensedTypes.forEach((type) => {
				obj[type] = 0;
			});

			for (const message of this.messages) {
				obj[message.type]++;
			}

			// Count quits as parts in condensed messages to reduce information density
			obj.part += obj.quit;

			const strings = [];
			constants.condensedTypes.forEach((type) => {
				if (obj[type]) {
					switch (type) {
					case "away":
						strings.push(obj[type] + (obj[type] > 1 ? " users have gone away" : " user has gone away"));
						break;
					case "back":
						strings.push(obj[type] + (obj[type] > 1 ? " users have come back" : " user has come back"));
						break;
					case "chghost":
						strings.push(obj[type] + (obj[type] > 1 ? " users have changed hostname" : " user has changed hostname"));
						break;
					case "join":
						strings.push(obj[type] + (obj[type] > 1 ? " users have joined" : " user has joined"));
						break;
					case "part":
						strings.push(obj[type] + (obj[type] > 1 ? " users have left" : " user has left"));
						break;
					case "nick":
						strings.push(obj[type] + (obj[type] > 1 ? " users have changed nick" : " user has changed nick"));
						break;
					case "kick":
						strings.push(obj[type] + (obj[type] > 1 ? " users were kicked" : " user was kicked"));
						break;
					case "mode":
						strings.push(obj[type] + (obj[type] > 1 ? " modes were set" : " mode was set"));
						break;
					}
				}
			});

			let text = strings.pop();

			if (strings.length) {
				text = strings.join(", ") + ", and " + text;
			}

			return text;
		},
	},
	methods: {
		onCollapseClick() {
			this.isCollapsed = !this.isCollapsed;
			this.keepScrollPosition();
		},
	},
};
</script>