后台系统依据路由生成tabs标签页
// tagsView.vue
<template>
<div class="tags" v-if="showTags">
<ul>
<li
class="tags-li"
v-for="(item,index) in tabsList"
:class="{'active': isActive(item.path)}"
:key="index"
>
<router-link :to="item.path" class="tags-li-title">{{item.title}}</router-link>
<span class="tags-li-icon" @click="closeTags(index)">
<i class="el-icon-close"></i>
</span>
</li>
</ul>
<!-- 其他操作按钮 -->
<div class="tags-close-box">
<el-dropdown @command="handleTabs">
<el-button size="mini">
<i class="el-icon-arrow-down el-icon--right">操作</i>
</el-button>
<el-dropdown-menu size="small" slot="dropdown">
<el-dropdown-item command="other">关闭其他</el-dropdown-item>
<el-dropdown-item command="all">关闭所有</el-dropdown-item>
</el-dropdown-menu>
</el-dropdown>
</div>
</div>
</template>
<script>
export default {
data() {
return {
tabsList: []
};
},
computed: {
showTags() {
return this.tabsList.length > 0;
}
},
watch: {
// 对router进行监听,每当访问router时,对tags的进行修改
$route(newValue) {
this.setTags(newValue);
}
},
created() {
// 第一次进入页面时,修改tag的值
this.setTags(this.$route);
},
methods: {
isActive(path) {
return path === this.$route.fullPath;
},
// 关闭单个标签
closeTags(index) {
const delItem = this.tabsList.splice(index, 1)[0];
const item = this.tabsList[index]
? this.tabsList[index]
: this.tabsList[index - 1];
if (item) {
delItem.path === this.$route.fullPath && this.$router.push(item.path);
} else {
this.$router.push("/");
}
},
// 关闭全部标签
closeAll() {
this.tabsList = [];
this.$router.push("/");
},
// 关闭其他标签
closeOther() {
const curItem = this.tabsList.filter(item => {
return item.path === this.$route.fullPath;
});
this.tabsList = curItem;
},
// 设置标签
setTags(route) {
const isExist = this.tabsList.some(item => {
return item.path === route.fullPath;
});
!isExist &&
this.tabsList.push({
title: route.meta.title,
path: route.fullPath,
name: route.matched[1].components.default.name
});
},
// 当关闭所有页面时隐藏
handleTabs(command) {
command === "other" ? this.closeOther() : this.closeAll();
}
}
};
</script>
<style>
.tags {
position: relative;
height: 30px;
overflow: hidden;
background: #fff;
padding-right: 120px;
}
.tags ul {
box-sizing: border-box;
width: 100%;
height: 100%;
}
.tags-li {
float: left;
margin: 3px 5px 2px 3px;
border-radius: 3px;
font-size: 12px;
overflow: hidden;
cursor: pointer;
height: 23px;
line-height: 23px;
border: 1px solid #e9eaec;
background: #fff;
padding: 0 5px 0 12px;
vertical-align: middle;
color: #666;
-webkit-transition: all 0.3s ease-in;
-moz-transition: all 0.3s ease-in;
transition: all 0.3s ease-in;
}
.tags-li:not(.active):hover {
background: #f8f8f8;
}
.tags-li-title {
float: left;
max-width: 80px;
overflow: hidden;
white-space: nowrap;
text-overflow: ellipsis;
margin-right: 5px;
color: #666;
}
.tags-li.active {
color: #fff;
border: 1px solid #10b9d3;
background-color: #10b9d3;
}
.tags-li.active .tags-li-title {
color: #fff;
}
.tags-close-box {
position: fixed;
right: 36px;
top: 76px;
background: #333;
box-sizing: border-box;
padding-top: 1px;
text-align: center;
z-index: 10;
}
</style>