<template>
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<div id="tags-view-container" class="tags-view-container">
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<hamburger :is-active="sidebar.opened" @toggleClick="toggleSideBar" />
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<scroll-pane ref="scrollPane" class="tags-view-wrapper" @scroll="handleScroll">
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<router-link v-for="tag in visitedViews" ref="tag" :key="tag.path" :class="isActive(tag) ? 'active' : ''" :to="{ path: tag.path, query: tag.query, fullPath: tag.fullPath }" tag="span" class="tags-view-item" @click.middle.native="!isAffix(tag) ? closeSelectedTag(tag) : ''" @contextmenu.prevent.native="openMenu(tag, $event)">
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{{ tag.title }}
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<span v-if="!isAffix(tag)" class="el-icon-close" @click.prevent.stop="closeSelectedTag(tag)" />
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</router-link>
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</scroll-pane>
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<ul v-show="visible" :style="{ left: left + 'px', top: top + 'px' }" class="contextmenu">
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<li @click="refreshSelectedTag(selectedTag)">刷新</li>
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<li v-if="!isAffix(selectedTag)" @click="closeSelectedTag(selectedTag)">
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关闭当前
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</li>
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<li @click="closeOthersTags">关闭其他</li>
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<li @click="closeAllTags(selectedTag)">关闭所有</li>
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</ul>
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</div>
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</template>
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<script>
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import { mapGetters } from "vuex";
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import ScrollPane from "./ScrollPane";
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import Hamburger from "../Hamburger";
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import path from "path";
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import {
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constantRoutes
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} from '@/router'
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export default {
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components: {
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ScrollPane,
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Hamburger,
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},
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data() {
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return {
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visible: false,
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top: 0,
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left: 0,
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selectedTag: {},
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affixTags: [],
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};
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},
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computed: {
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visitedViews() {
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return this.$store.state.tagsView.visitedViews;
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},
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routes() {
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return constantRoutes;
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},
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...mapGetters(["sidebar"]),
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},
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watch: {
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$route(to, from) {
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if (this.$store.state.tagsView.cachedViews.indexOf(to.name) == -1) {
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this.addTags();
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} else {
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this.$store.dispatch("tagsView/updateVisitedViewName", to);
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}
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this.moveToCurrentTag();
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},
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visible(value) {
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if (value) {
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document.body.addEventListener("click", this.closeMenu);
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} else {
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document.body.removeEventListener("click", this.closeMenu);
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}
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},
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},
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mounted() {
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this.initTags();
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this.addTags();
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},
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methods: {
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toggleSideBar() {
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this.$store.dispatch("app/toggleSideBar");
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},
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isActive(route) {
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return route.path === this.$route.path;
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},
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isAffix(tag) {
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return tag.meta && tag.meta.affix;
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},
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filterAffixTags(routes, basePath = "/") {
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let tags = [];
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routes.forEach((route) => {
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if (route.meta && route.meta.affix) {
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const tagPath = path.resolve(basePath, route.path);
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tags.push({
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fullPath: tagPath,
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path: tagPath,
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name: route.name,
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meta: {
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...route.meta,
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},
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});
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}
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if (route.children) {
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const tempTags = this.filterAffixTags(route.children, route.path);
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if (tempTags.length >= 1) {
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tags = [...tags, ...tempTags];
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}
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}
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});
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return tags;
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},
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initTags() {
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const affixTags = (this.affixTags = this.filterAffixTags(this.routes));
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for (const tag of affixTags) {
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// Must have tag name
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if (tag.name) {
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this.$store.dispatch("tagsView/addVisitedView", tag);
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}
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}
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},
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addTags() {
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const { name } = this.$route;
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if (name) {
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this.$store.dispatch("tagsView/addView", this.$route);
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}
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return false;
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},
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moveToCurrentTag() {
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const tags = this.$refs.tag;
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this.$nextTick(() => {
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for (const tag of tags) {
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if (tag.to.path === this.$route.path) {
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this.$refs.scrollPane.moveToTarget(tag);
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if (tag.to.fullPath !== this.$route.fullPath) {
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this.$store.dispatch("tagsView/updateVisitedView", this.$route);
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}
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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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refreshSelectedTag(view) {
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this.$store.dispatch("tagsView/delCachedView", view).then(() => {
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const fullPath = view.fullPath;
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this.$nextTick(() => {
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this.$router.replace({
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path: "/redirect" + fullPath,
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});
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});
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});
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},
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closeSelectedTag(view) {
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this.$store
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.dispatch("tagsView/delView", view)
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.then(({ visitedViews }) => {
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if (this.isActive(view)) {
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this.toLastView(visitedViews, view);
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}
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});
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},
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closeOthersTags() {
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this.$router.push(this.selectedTag);
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this.$store
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.dispatch("tagsView/delOthersViews", this.selectedTag)
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.then(() => {
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this.moveToCurrentTag();
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});
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},
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closeAllTags(view) {
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this.$store.dispatch("tagsView/delAllViews").then(({ visitedViews }) => {
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if (this.affixTags.some((tag) => tag.path === view.path)) {
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return;
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}
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this.toLastView(visitedViews, view);
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});
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},
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toLastView(visitedViews, view) {
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const latestView = visitedViews.slice(-1)[0];
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if (latestView) {
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this.$router.push(latestView.fullPath);
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} else {
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// now the default is to redirect to the home page if there is no tags-view,
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// you can adjust it according to your needs.
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if (view.name === "home") {
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// to reload home page
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this.$router.replace({
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path: "/redirect" + view.fullPath,
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});
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} else {
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this.$router.push("/");
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}
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}
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},
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openMenu(tag, e) {
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const menuMinWidth = 105;
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const offsetLeft = this.$el.getBoundingClientRect().left; // container margin left
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const offsetWidth = this.$el.offsetWidth; // container width
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const maxLeft = offsetWidth - menuMinWidth; // left boundary
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const left = e.clientX - offsetLeft + 15; // 15: margin right
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if (left > maxLeft) {
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this.left = maxLeft;
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} else {
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this.left = left;
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}
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this.top = 10;
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this.visible = true;
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this.selectedTag = tag;
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},
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closeMenu() {
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this.visible = false;
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},
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handleScroll() {
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this.closeMenu();
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},
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},
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};
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</script>
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<style lang="scss" scoped>
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.tags-view-container {
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width: 100%;
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padding-left: 48px;
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position: relative;
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.tags-view-wrapper {
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width: calc(100% - 48px);
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.tags-view-item {
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display: inline-block;
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position: relative;
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cursor: pointer;
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height: 40px;
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line-height: 40px;
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padding: 0 20px;
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font-size: 12px;
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&.active {
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// &::before {
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// content: "";
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// background: #fff;
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// display: inline-block;
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// width: 8px;
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// height: 8px;
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// border-radius: 50%;
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// position: relative;
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// margin-right: 2px;
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// }
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}
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}
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}
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.contextmenu {
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margin: 0;
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background: #fff;
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z-index: 3000;
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position: absolute;
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list-style-type: none;
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padding: 5px 0;
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border-radius: 4px;
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font-size: 12px;
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font-weight: 400;
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color: #333;
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box-shadow: 2px 2px 3px 0 rgba(0, 0, 0, 0.3);
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li {
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margin: 0;
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padding: 7px 16px;
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cursor: pointer;
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&:hover {
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background: #eee;
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}
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}
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}
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}
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</style>
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<style lang="scss">
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//reset element css of el-icon-close
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.tags-view-wrapper {
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.tags-view-item {
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.el-icon-close {
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width: 16px;
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height: 16px;
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vertical-align: 2px;
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border-radius: 50%;
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text-align: center;
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transition: all 0.3s cubic-bezier(0.645, 0.045, 0.355, 1);
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transform-origin: 100% 50%;
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// &:before {
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// transform: scale(0.6);
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// display: inline-block;
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// vertical-align: -3px;
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// }
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&:hover {
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background-color: #b4bccc;
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color: #fff;
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}
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}
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}
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}
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</style>
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