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Explore page (unload some devlogs to save ram) #63

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Explore page (unload some devlogs to save ram) #63

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24 changes: 23 additions & 1 deletion src/routes/dashboard/explore/+page.svelte
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Original file line number Diff line number Diff line change
@@ -1,10 +1,13 @@
<script lang="ts">
import { onMount } from 'svelte';
import { onMount, tick } from 'svelte';
import Devlog from '$lib/components/Devlog.svelte';
import Head from '$lib/components/Head.svelte';

let { data } = $props();

const MAX_DEVLOGS = 60;
const TRIMMED_DEVLOGS = 45;

let devlogs = $state([...data.devlogs]);
let hasMore = $state(data.hasMore);
let nextOffset = $state(data.nextOffset);
Expand All @@ -24,6 +27,24 @@
}));
}

async function trimDevlogsIfNeeded() {
await tick();
if (devlogs.length <= MAX_DEVLOGS) return;

const previousScroll = window.scrollY;
const previousHeight = document.body.scrollHeight;
const excess = devlogs.length - TRIMMED_DEVLOGS;

devlogs = devlogs.slice(excess);
await tick();

const heightDelta = previousHeight - document.body.scrollHeight;

if (heightDelta > 0) {
window.scrollTo({ top: Math.max(0, previousScroll - heightDelta) });
}
}

async function loadMoreDevlogs() {
if (loadingMore || !hasMore) return;

Expand All @@ -44,6 +65,7 @@
devlogs = [...devlogs, ...incoming];
nextOffset = payload.nextOffset ?? nextOffset + incoming.length;
hasMore = Boolean(payload.hasMore);
await trimDevlogsIfNeeded();
} catch (error) {
console.error(error);
loadError = 'Could not load more right now.';
Expand Down