62 lines
1.7 KiB
Vue
62 lines
1.7 KiB
Vue
<template>
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<div class="sidebar-button" @click="$emit('toggle-sidebar')">
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<svg class="icon" :style="{color:scrollFlag?'white':'black'}" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" role="img" viewBox="0 0 448 512">
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<path fill="currentColor" d="M436 124H12c-6.627 0-12-5.373-12-12V80c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12zm0 160H12c-6.627 0-12-5.373-12-12v-32c0-6.627 5.373-12 12-12h424c6.627 0 12 5.373 12 12v32c0 6.627-5.373 12-12 12z" class=""></path>
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</svg>
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</div>
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</template>
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<script>
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export default {
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data(){
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return{
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scrollFlag: false
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}
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},
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watch:{
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//监听路由，处理导航栏样式
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$route(to,from){
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this.handleScroll();
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}
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},
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methods:{
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handleScroll () {
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let _this=this;
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let scrollTop = window.pageYOffset || document.documentElement.scrollTop || document.body.scrollTop
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// console.log(scrollTop)
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let index = this.$route.path;
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//当在首页的顶部时才加样式
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if(scrollTop==0&&index== '/'){
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_this.scrollFlag=true
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// console.log("true");
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}else{
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_this.scrollFlag=false
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// console.log("false");
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}
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}
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},
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mounted(){
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this.handleScroll()
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window.addEventListener('scroll', this.handleScroll)
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}
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}
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</script>
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<style lang="stylus">
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.sidebar-button
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cursor pointer
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display none
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width 1.25rem
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height 1.25rem
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position absolute
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padding 0.6rem
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top 0.6rem
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left 1rem
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.icon
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display block
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width 1.25rem
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height 1.25rem
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color white
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@media (max-width: $MQMobile)
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.sidebar-button
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display block
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</style>
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