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<template>
<div class="news" v-if="count">
<span v-if="!entries.length">(no news entries)</span>
<article class="entry" v-for="entry in entries" :id="entry.id">
<a :href="'#' + entry.id">{{ entry.title }}</a>
<time :datetime="entry.date" class="date">{{ entry.date }}</time>
<section class="body" v-html="entry.html"></section>
<q>{{entry.author}}</q>
</article>
</div>
</template>
<style scoped>
.news .entry {
margin-bottom: 1em;
hyphens: auto;
&:nth-of-type(1n + 2) {
margin-top: 3em;
padding-top: 1em;
border-top: solid 0.4ex rgba(0, 0, 0, 0.1);
}
& > a {
text-decoration: none;
color: inherit;
font-weight: bold;
}
& > .date {
float: right;
color: #0000FF;
}
& .body {
margin-top: 1ex;
& :any-link {
color: inherit;
text-decoration: none;
&::before {
content: "➜ ";
color: blue;
}
&:hover {
text-decoration: underline;
}
}
}
& q {
color: #009000;
margin-top: 0.5em;
display: inline-block;
&::before {
content: "– ";
}
}
}
@media (min-width: 1100px) {
.news .entry {
padding-left: 30px;
padding-right: 40px;
}
}
</style>
<script lang="ts">
import { Component, Prop, Vue } from "vue-property-decorator";
import newsEntries from "@/assets/news.json";
interface NewsEntry {
id: string;
title: string;
date: string;
author: string;
html: string;
}
@Component
export default class News extends Vue {
@Prop({ default: Infinity }) private count!: number;
@Prop({ default: 0 }) private from!: number;
private entries: NewsEntry[] = (newsEntries as NewsEntry[]).slice(this.from, this.count);
mounted () {
if (!process.env.VUE_APP_NEWS_JSON || !process.env.VUE_APP_NEWS_JSON.startsWith("https")) {
// TODO: allow arbitrary paths (no hardcoded news.json)
return;
}
// restore from cache while we're loading a fresh copy
if (Reflect.has(self, "localStorage")) {
let newsCache = localStorage.getItem("newsCache");
if (newsCache !== null) {
this.entries = (JSON.parse(newsCache) as NewsEntry[]).slice(this.from, this.count);
}
}
const req = new Request(process.env.VUE_APP_NEWS_JSON, {
method: "GET",
cache: "default", // serve if fresh, else fetch
});
fetch(req)
.then(data => data.json())
.then(data => {
this.entries = (data as NewsEntry[]).slice(this.from, this.count);
if (Reflect.has(self, "localStorage")) {
localStorage.setItem("newsCache", JSON.stringify(data));
}
})
.catch(e => {
// no news (will use cache, if any)
})
}
}
</script>
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