thelounge/client/components/App.vue

<template>
	<div id="viewport" role="tablist">
		<aside id="sidebar">
			<div class="scrollable-area">
				<div class="logo-container">
					<img
						:src="`img/logo-${isPublic() ? 'horizontal-' : ''}transparent-bg.svg`"
						class="logo"
						alt="The Lounge"
					/>
					<img
						:src="
							`img/logo-${isPublic() ? 'horizontal-' : ''}transparent-bg-inverted.svg`
						"
						class="logo-inverted"
						alt="The Lounge"
					/>
				</div>
				<NetworkList :networks="networks" :active-channel="activeChannel" />
			</div>
			<footer id="footer">
				<span
					class="tooltipped tooltipped-n tooltipped-no-touch"
					aria-label="Sign in"><button
						class="icon sign-in"
						data-target="SignIn"
						aria-label="Sign in"
						role="tab"
						aria-controls="sign-in"
						aria-selected="false" /></span>
				<span
					class="tooltipped tooltipped-n tooltipped-no-touch"
					aria-label="Connect to network"><button
						class="icon connect"
						data-target="Connect"
						aria-label="Connect to network"
						role="tab"
						aria-controls="connect"
						aria-selected="false" /></span>
				<span
					class="tooltipped tooltipped-n tooltipped-no-touch"
					aria-label="Settings"><button
						class="icon settings"
						data-target="Settings"
						aria-label="Settings"
						role="tab"
						aria-controls="settings"
						aria-selected="false" /></span>
				<span
					class="tooltipped tooltipped-n tooltipped-no-touch"
					aria-label="Help"><button
						class="icon help"
						data-target="Help"
						aria-label="Help"
						role="tab"
						aria-controls="help"
						aria-selected="false" /></span>
			</footer>
		</aside>
		<div id="sidebar-overlay" />
		<article id="windows">
			<Chat
				v-if="activeChannel"
				:network="activeChannel.network"
				:channel="activeChannel.channel" />
			<component
				:is="activeWindow"
				ref="window" />
		</article>
	</div>
</template>

<script>
const throttle = require("lodash/throttle");

import NetworkList from "./NetworkList.vue";
import Chat from "./Chat.vue";
import SignIn from "./Windows/SignIn.vue";
import Settings from "./Windows/Settings.vue";
import Help from "./Windows/Help.vue";

export default {
	name: "App",
	components: {
		NetworkList,
		Chat,
		SignIn,
		Settings,
		Help,
	},
	props: {
		activeWindow: String,
		activeChannel: Object,
		networks: Array,
	},
	mounted() {
		// Make a single throttled resize listener available to all components
		this.debouncedResize = throttle(() => {
			this.$root.$emit("resize");
		}, 100);

		window.addEventListener("resize", this.debouncedResize, {passive: true});

		// Emit a daychange event every time the day changes so date markers know when to update themselves
		const emitDayChange = () => {
			this.$root.$emit("daychange");
			// This should always be 24h later but re-computing exact value just in case
			this.dayChangeTimeout = setTimeout(emitDayChange, this.msUntilNextDay());
		};

		this.dayChangeTimeout = setTimeout(emitDayChange, this.msUntilNextDay());
	},
	beforeDestroy() {
		window.removeEventListener("resize", this.debouncedResize);
		clearTimeout(this.dayChangeTimeout);
	},
	methods: {
		isPublic: () => document.body.classList.contains("public"),
		msUntilNextDay() {
			// Compute how many milliseconds are remaining until the next day starts
			const today = new Date();
			const tommorow = new Date(today.getFullYear(), today.getMonth(), today.getDate() + 1);

			return tommorow - today;
		},
	},
};
</script>