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+<template>
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+ <div class="tags" v-if="showTags">
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+ <ul>
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+ <li class="tags-li" v-for="(item, index) in tagsList" :class="{ active: isActive(item.path) }" :key="index">
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+ <router-link :to="item.path" class="tags-li-title">
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+ {{ item.title }}
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+ </router-link>
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+ <span class="tags-li-icon" @click="closeTags(index)"><i class="el-icon-close"></i></span>
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+ </li>
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+ </ul>
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+ <div class="tags-close-box">
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+ <el-dropdown @command="handleTags">
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+ <el-button size="mini" type="primary"> 标签选项<i class="el-icon-arrow-down el-icon--right"></i> </el-button>
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+ <el-dropdown-menu size="small" slot="dropdown">
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+ <el-dropdown-item command="other">关闭其他</el-dropdown-item>
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+ <el-dropdown-item command="all">关闭所有</el-dropdown-item>
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+ </el-dropdown-menu>
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+ </el-dropdown>
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+ </div>
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+ </div>
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+</template>
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+
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+<script>
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+import bus from './bus';
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+export default {
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+ data() {
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+ return {
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+ tagsList: [],
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+ };
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+ },
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+ methods: {
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+ isActive(path) {
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+ return path === this.$route.fullPath;
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+ },
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+ // 关闭单个标签
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+ closeTags(index) {
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+ const delItem = this.tagsList.splice(index, 1)[0];
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+ const item = this.tagsList[index] ? this.tagsList[index] : this.tagsList[index - 1];
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+ if (item) {
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+ delItem.path === this.$route.fullPath && this.$router.push(item.path);
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+ } else {
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+ this.$router.push('/');
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+ }
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+ },
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+ // 关闭全部标签
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+ closeAll() {
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+ this.tagsList = [];
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+ this.$router.push('/');
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+ },
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+ // 关闭其他标签
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+ closeOther() {
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+ const curItem = this.tagsList.filter(item => {
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+ return item.path === this.$route.fullPath;
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+ });
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+ this.tagsList = curItem;
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+ },
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+ // 设置标签
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+ setTags(route) {
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+ const isExist = this.tagsList.some(item => {
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+ return item.path === route.fullPath;
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+ });
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+ if (!isExist) {
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+ if (this.tagsList.length >= 8) {
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+ this.tagsList.shift();
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+ }
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+ this.tagsList.push({
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+ title: route.meta.title,
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+ path: route.fullPath,
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+ name: route.matched[1].components.default.name,
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+ });
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+ }
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+ bus.$emit('tags', this.tagsList);
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+ },
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+ handleTags(command) {
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+ command === 'other' ? this.closeOther() : this.closeAll();
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+ },
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+ },
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+ computed: {
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+ showTags() {
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+ return this.tagsList.length > 0;
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+ },
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+ },
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+ watch: {
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+ $route(newValue, oldValue) {
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+ this.setTags(newValue);
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+ },
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+ },
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+ created() {
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+ this.setTags(this.$route);
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+ // 监听关闭当前页面的标签页
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+ bus.$on('close_current_tags', () => {
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+ for (let i = 0, len = this.tagsList.length; i < len; i++) {
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+ const item = this.tagsList[i];
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+ if (item.path === this.$route.fullPath) {
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+ if (i < len - 1) {
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+ this.$router.push(this.tagsList[i + 1].path);
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+ } else if (i > 0) {
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+ this.$router.push(this.tagsList[i - 1].path);
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+ } else {
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+ this.$router.push('/');
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+ }
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+ this.tagsList.splice(i, 1);
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+ break;
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+ }
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+ }
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+ });
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+ },
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+};
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+</script>
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+
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+<style>
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+.tags {
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+ position: relative;
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+ height: 30px;
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+ overflow: hidden;
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+ background: #fff;
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+ padding-right: 120px;
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+ box-shadow: 0 5px 10px #ddd;
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+}
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+
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+.tags ul {
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+ box-sizing: border-box;
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+ width: 100%;
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+ height: 100%;
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+}
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+
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+.tags-li {
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+ float: left;
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+ margin: 3px 5px 2px 3px;
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+ border-radius: 3px;
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+ font-size: 12px;
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+ overflow: hidden;
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+ cursor: pointer;
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+ height: 23px;
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+ line-height: 23px;
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+ border: 1px solid #e9eaec;
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+ background: #fff;
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+ padding: 0 5px 0 12px;
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+ vertical-align: middle;
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+ color: #666;
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+ -webkit-transition: all 0.3s ease-in;
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+ -moz-transition: all 0.3s ease-in;
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+ transition: all 0.3s ease-in;
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+}
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+
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+.tags-li:not(.active):hover {
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+ background: #f8f8f8;
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+}
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+
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+.tags-li.active {
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+ color: #fff;
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+}
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+
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+.tags-li-title {
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+ float: left;
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+ max-width: 80px;
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+ overflow: hidden;
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+ white-space: nowrap;
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+ text-overflow: ellipsis;
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+ margin-right: 5px;
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+ color: #666;
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+}
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+
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+.tags-li.active .tags-li-title {
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+ color: #fff;
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+}
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+
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+.tags-close-box {
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+ position: absolute;
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+ right: 0;
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+ top: 0;
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+ box-sizing: border-box;
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+ padding-top: 1px;
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+ text-align: center;
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+ width: 110px;
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+ height: 30px;
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+ background: #fff;
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+ box-shadow: -3px 0 15px 3px rgba(0, 0, 0, 0.1);
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+ z-index: 10;
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+}
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+</style>
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