85 lines
1.4 KiB
Vue
85 lines
1.4 KiB
Vue
<template>
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<button
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class="one-back-to-top"
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:class="{
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scrolled: !top
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}"
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aria-hidden="true"
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@click="scrollToTop"
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>
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<veui-icon
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class="icon"
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name="arrow-up"
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:label="t('toTop')"
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/>
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</button>
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</template>
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<script>
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import { Icon } from 'veui'
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import i18n from 'veui/mixins/i18n'
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import 'veui-theme-dls-icons/arrow-up'
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import { debounce } from 'lodash'
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export default {
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name: 'one-back-to-top',
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components: {
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'veui-icon': Icon
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},
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mixins: [i18n],
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data () {
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return {
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top: true
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}
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},
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mounted () {
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this.check = debounce(() => {
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this.top = window.scrollY === 0
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}, 300)
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window.addEventListener('scroll', this.check)
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this.check()
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},
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beforeDestroy () {
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this.check.cancel()
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window.removeEventListener('scroll', this.check)
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},
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methods: {
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scrollToTop () {
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window.scrollTo(0, 0)
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}
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}
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}
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</script>
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<style lang="stylus" scoped>
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.one-back-to-top
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position fixed
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right 35px
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bottom 35px
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width 43px
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height 43px
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border 1px solid #dbdbdb
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border-radius 50%
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opacity 0
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outline none
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box-shadow 0 0 2px #dbdbdb
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cursor pointer
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transition background-color 0.3s, opacity 0.3s
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&:hover
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&.focus-visible
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background-color #f7f7f7
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&:active
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background-color #ececec
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.icon
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position absolute
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top 50%
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left 50%
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transform translate(-50%, -50%)
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.scrolled
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opacity 1
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</style>
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