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Smooth scroll
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bb088b601c
commit
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2 changed files with 55 additions and 40 deletions
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@ -39,4 +39,15 @@ export function animateText (ev, interval = 50) {
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}
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}
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}, interval * i)
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}, interval * i)
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}
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}
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}
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export async function handleAnchorClick (event) {
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event.preventDefault()
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const link = event.currentTarget
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const anchorId = new URL(link.href).hash.replace('#', '')
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const anchor = document.getElementById(anchorId || 'intro')
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return window.scrollTo({
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top: anchor.offsetTop,
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behavior: 'smooth'
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})
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}
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}
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@ -3,19 +3,21 @@
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export let data;
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export let data;
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import SvelteMarkdown from 'svelte-markdown';
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import SvelteMarkdown from 'svelte-markdown';
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import { animateText } from '$lib/helpers';
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import { animateText, handleAnchorClick } from '$lib/helpers';
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import { onMount } from 'svelte';
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import { onMount } from 'svelte';
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let navbar = false;
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let navbar = false;
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let choosed = null;
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let lastScrollTop = null;
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const menu = [
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const menu = [
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{ title: 'Homepage', url: '', hidden: true },
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{ title: 'intro', name: '#', url: '' },
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{ title: 'About', url: '#about' },
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{ title: 'About', url: '#about' },
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{ title: 'Speakers', url: '#speakers' },
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{ title: 'Speakers', url: '#speakers' },
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{ title: 'Program', url: '#program' },
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{ title: 'Program', url: '#program' },
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{ title: 'Sponsors', url: '#sponsors' },
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{ title: 'Sponsors', url: '#sponsors' },
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{ title: 'FAQ', url: '#faq' },
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{ title: 'Ticket', url: '#ticket', class: 'button' },
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{ title: 'Ticket', url: '#ticket', class: 'button' },
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{ title: 'FAQ', url: '#faq', hidden: true }
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];
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];
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const homepageAnimation = () => {
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const homepageAnimation = () => {
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@ -25,43 +27,41 @@
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}
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}
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}
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}
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function locationHashUpdateTick () {
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const scrollTop = document.documentElement.scrollTop || document.body.scrollTop
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if (lastScrollTop === scrollTop) {
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return null;
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} else {
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lastScrollTop = scrollTop
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}
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const arr = []
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for (const mi of menu) {
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const el = document.getElementById(mi.title.toLowerCase())
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const pos = el.getBoundingClientRect()
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//console.log(mi.title, pos.top, pos.bottom)
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if (pos.top <= 100 && pos.bottom > 100) {
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arr.push([ mi, pos.top, pos.bottom ])
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}
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}
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choosed = arr[arr.length-1]
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if (choosed) {
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//console.log('choosed = ', choosed[0].title)
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const currentHash = window.location.hash
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const hash = choosed[0].url
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if (hash !== currentHash) {
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if (hash === '') {
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history.replaceState(null, null, ' ');
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} else {
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history.replaceState(null, null, hash);
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}
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}
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}
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}
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onMount(async () => {
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onMount(async () => {
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setTimeout(homepageAnimation, 0) // initial animation
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setTimeout(homepageAnimation, 0) // initial animation
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setInterval(homepageAnimation, 10000) // every 10 seconds
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setInterval(homepageAnimation, 10000) // every 10 seconds
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setInterval(locationHashUpdateTick, 1000) // every 1 seconds
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let lastScrollTop = null
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setInterval(() => {
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const scrollTop = document.documentElement.scrollTop || document.body.scrollTop
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if (lastScrollTop === scrollTop) {
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return null;
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} else {
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lastScrollTop = scrollTop
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}
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console.log('x')
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const arr = []
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for (const mi of menu) {
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const el = document.getElementById(mi.title.toLowerCase())
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const pos = el.getBoundingClientRect()
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//console.log(mi.title, pos.top, pos.bottom)
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if (pos.top <= 100 && pos.bottom > 100) {
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arr.push([ mi, pos.top, pos.bottom ])
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}
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}
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const choosed = arr[arr.length-1]
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if (choosed) {
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//console.log('choosed = ', choosed[0].title)
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const currentHash = window.location.hash
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const hash = choosed[0].url
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if (hash !== currentHash) {
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if (hash === '') {
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history.replaceState(null, null, ' ');
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} else {
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history.replaceState(null, null, hash);
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}
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}
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}
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}, 1000)
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});
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});
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</script>
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</script>
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@ -77,9 +77,13 @@
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<!--h1 class="text-2xl uppercase">{data.config.title}</h1-->
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<!--h1 class="text-2xl uppercase">{data.config.title}</h1-->
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</div>
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</div>
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<div class="flex items-center gap-6 text-xl">
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<div class="flex items-center gap-6 text-xl">
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<button class="md:hidden text-3xl" on:click={() => navbar = !navbar}>☰</button>
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<button class="md:hidden text-3xl" on:click={(ev) => (navbar = !navbar)}>☰</button>
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{#each menu.filter(i => !i.hidden) as mi}
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{#each menu.filter(i => !i.hidden) as mi}
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<div class="hidden md:block"><a class="{mi.class ? mi.class : 'hover:underline'}" href={mi.url} on:mouseenter={animateText}>{mi.title.toUpperCase()}</a></div>
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<div class="hidden md:block">
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<a class="{mi.class ? mi.class : 'hover:underline'} {choosed && mi.url === choosed[0].url ? 'font-bold underline' : null}" href={mi.url} on:mouseenter={animateText} on:click={handleAnchorClick}>
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{mi.name?.toUpperCase() || mi.title.toUpperCase()}
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</a>
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</div>
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{/each}
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{/each}
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</div>
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</div>
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</div>
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</div>
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@ -95,7 +99,7 @@
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{/if}
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{/if}
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</div>
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</div>
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<div class="w-full h-screen" id="homepage">
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<div class="w-full h-screen" id="intro">
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<div class="w-full h-full flex items-center text-center">
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<div class="w-full h-full flex items-center text-center">
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<div class="mx-auto px-4">
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<div class="mx-auto px-4">
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<div class="text-5xl md:text-8xl font-bold mb-4 md:mb-8 animation-crypt" on:mouseenter={animateText}>
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<div class="text-5xl md:text-8xl font-bold mb-4 md:mb-8 animation-crypt" on:mouseenter={animateText}>
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