irc_web/.svn/pristine/69/69d7b1e23eef94afb919bf38b0c...

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<template>
<div class="back-btn-position-fx-style">
<slot />
</div>
</template>
<script>
export default {
name: 'Affix',
props: {
},
data() {
return {
}
},
mounted() {
window.addEventListener('scroll', this.handleScroll)
},
methods: {
handleScroll(e) {
if (document.documentElement.scrollHeight - document.documentElement.scrollTop <= document.documentElement.clientHeight + 317) {
const fxDom = document.getElementsByClassName('back-btn-position-fx-style')
if (fxDom.length > 0) {
fxDom[0].classList.add('back-btn-position-ab-style')
fxDom[0].classList.remove('back-btn-position-fx-style')
}
} else {
const adDom = document.getElementsByClassName('back-btn-position-ab-style')
if (adDom.length > 0) {
adDom[0].classList.add('back-btn-position-fx-style')
adDom[0].classList.remove('back-btn-position-ab-style')
}
}
}
}
}
</script>
<style scoped>
.back-btn-position-ab-style {
position: absolute;
top: 60px;
/* margin-left: 1074px; */
}
.back-btn-position-fx-style {
position: fixed;
top: 60px;
background: #fff;
/* margin-left: 1074px; */
}
</style>