public/components/HeaderLoop.vue
2024-03-01 15:50:44 -05:00

102 lines
2.2 KiB
Vue

<script setup lang="ts">
const props = defineProps<{ strings: string[]; class?: string }>();
</script>
<template>
<h1 :class="[props.class, 'text-loop relative text-center w-full h-16']">
<span class="text absolute w-full" v-for="s in props.strings" :key="s">
{{ s }}
</span>
</h1>
</template>
<style scoped lang="scss">
@use "sass:math";
@mixin text-loop($els) {
.text-loop {
overflow: hidden;
$duration: 3s;
@if $els > 1 {
& > span {
display: block;
opacity: 0;
@for $i from 1 through $els {
&:nth-child(#{$i}) {
animation: move-test-#{$i} $duration * $els infinite;
}
}
}
}
}
@for $i from 1 through $els {
@keyframes move-test-#{$i} {
$interval: calc(100% / $els);
$upper_bound: $interval * $i;
$lower_bound: $interval * ($i - 1);
// we try to make the previous exit and the next enter
// at the same time, also taking care of negatives
// for i = 1, this is negative, so start the animation at the end of the cycle
@if $i > 1 {
0% {
opacity: 0;
transform: translateY(100%);
}
#{$lower_bound - $interval * 0.05} {
opacity: 0;
transform: translateY(100%);
}
}
#{$lower_bound} {
opacity: 1;
transform: translateY(0%);
}
#{$lower_bound + $interval * 0.95} {
opacity: 1;
transform: translateY(0%);
}
#{$upper_bound} {
opacity: 0;
transform: translateY(-100%);
}
@if $i == 1 {
// reset el 1
#{100% - $interval * 0.05} {
opacity: 0;
transform: translateY(100%);
}
100% {
opacity: 1;
transform: translateY(0%);
}
} @else {
100% {
opacity: 0;
transform: translateY(-100%);
}
}
}
}
}
/**
* For one element, we have the following pattern. To expand it to 2+
* els, we divide 100% by the number of els and turn on the animation
* only at the correct time.
* -5%: invis
* 0%: vis
* 95%: vis
* 100%: invis
*/
@include text-loop(3);
</style>