koel/resources/assets/js/components/ui/BtnScrollToTop.vue
2024-07-06 17:45:01 +02:00

43 lines
1.1 KiB
Vue

<template>
<Transition name="fade">
<button
v-show="showing"
ref="el"
class="sm:hidden block fixed right-[1.8rem] z-20 opacity-100 duration-500 transition-opacity rounded-full py-2 px-4 bg-black/50"
title="Scroll to top"
type="button"
@click="scrollToTop"
>
<Icon :icon="faCircleUp" />&nbsp;
Top
</button>
</Transition>
</template>
<script lang="ts" setup>
import { faCircleUp } from '@fortawesome/free-solid-svg-icons'
import { onMounted, ref } from 'vue'
import { $ } from '@/utils'
const el = ref<HTMLElement>()
const showing = ref(false)
const scrollToTop = () => $.scrollTo(el.value?.parentElement!, 0, 500, () => (showing.value = false))
onMounted(() => {
el.value?.parentElement?.addEventListener('scroll', event => {
showing.value = (event.target as HTMLElement).scrollTop > 64
})
})
</script>
<style lang="postcss" scoped>
button {
@apply border border-white/50 text-k-text-primary;
bottom: calc(var(--footer-height) + 26px);
&.fade-enter, &.fade-leave-to {
@apply opacity-0;
}
}
</style>