这篇文章主要介绍“vue项目怎么实现面包屑导航”,在日常操作中,相信很多人在vue项目怎么实现面包屑导航问题上存在疑惑,小编查阅了各式资料,整理出简单好用的操作方法,希望对大家解答”vue项目怎么实现面包屑导航”的疑惑有所帮助!接下来,请跟着小编一起来学习吧!
具体效果如下
安装依赖
npm i vuex
创建 tagView.vue
<template> <div class="tags-view-container"> <scroll-pane class="tags-view-wrapper" ref="scrollPane"> <router-link ref="tag" :to="tag" :class="isActive(tag)? 'action' : ''" class='scrollPane_item' @contextmenu.prevent.native="openMenu(tag,$event)" v-for="tag in Array.from(visitedViews)" :key="tag.path"> {{tag.title}} <span class="el-icon-error close_Icon" :class="isActive(tag)? 'IconActive' : ''" @click.prevent.stop='closeSelectedTag(tag)'></span> </router-link> </scroll-pane> <ul class='contextmenu' v-show="visible" :> <li @click="closeSelectedTag(selectedTag)">关闭</li> <li @click="closeOthersTags">关闭其他</li> <li @click="closeAllTags">关闭所有</li> </ul> </div></template> <script> import ScrollPane from '../scrollPane/scrollpane' export default { name: "tags-view", components: { ScrollPane }, data(){ return{ visible: false, top: 0, left: 0, selectedTag: {}, ScrollAction: false } }, computed:{ visitedViews(){ return this.$store.state.tagsView.visitedViews } }, watch:{ $route(){ this.addViewTags() this.moveToCurrentTag() }, visible(value) { if (value) { document.body.addEventListener('click', this.closeMenu) } else { document.body.removeEventListener('click', this.closeMenu) } } }, mounted() { this.addViewTags() }, methods:{ generateRoute(){ if (this.$route.name) { return this.$route } return false }, isActive(route) { return route.path === this.$route.path }, addViewTags() { const route = this.generateRoute() if (!route) { return false } this.$store.dispatch('addVisitedViews', route) }, moveToCurrentTag() { const tags = this.$refs.tag this.$nextTick(() => { for (const tag of tags) { if (tag.to.path === this.$route.path) { this.$refs.scrollPane.moveToTarget(tag.$el) break } } }) }, closeSelectedTag(view) { this.$store.dispatch('delVisitedViews', view).then((views) => { if (this.isActive(view)) { const latestView = views.slice(-1)[0] if (latestView) { this.$router.push(latestView) } else { this.$router.push('/homePage') } } }) }, closeOthersTags() { this.$router.push(this.selectedTag) this.$store.dispatch('delOthersViews', this.selectedTag).then(() => { this.moveToCurrentTag() }) }, closeAllTags() { this.$store.dispatch('delAllViews') this.$router.push('/homePage') }, openMenu(tag, e) { this.visible = true this.selectedTag = tag this.left = e.clientX + 30 // 15: margin right this.top = e.clientY }, closeMenu() { this.visible = false } } }</script> <style> @import './tagView.scss';</style>
创建 tagView.scss
.tags-view-container { height: 100%;}.contextmenu { margin: 0; background: #fff; z-index: 100; position: absolute; list-style-type: none; padding: 5px 0; border-radius: 4px; font-size: 12px; font-weight: 400; color: #333; box-shadow: 2px 2px 3px 0 rgba(0, 0, 0, .3); }.contextmenu li { margin: 0; padding: 7px 16px; cursor: pointer;}.contextmenu li:hover { background: #eee;}.tags-view-wrapper a { display: inline-block; position: relative; width: 100px; padding: 0 10px; color: #000; background: #fff; text-align: center; font-size: 15px;}.action { border-bottom: 2px solid #1AB394;}.close_Icon { color: #fff; margin-left: 3px;}.IconActive { color: #b1b1b1;}
创建 tagViews.js
const tagsView = { state: { visitedViews: [], cachedViews: [] }, mutations: { ADD_VISITED_VIEWS: (state, view) => { if (state.visitedViews.some(v => v.path === view.path)) return state.visitedViews.push(Object.assign({}, view, { title: view.meta.title || 'no-name' })) if (!view.meta.noCache) { state.cachedViews.push(view.name) } }, DEL_VISITED_VIEWS: (state, view) => { for (const [i, v] of state.visitedViews.entries()) { if (v.path === view.path) { state.visitedViews.splice(i, 1) break } } for (const i of state.cachedViews) { if (i === view.name) { const index = state.cachedViews.indexOf(i) state.cachedViews.splice(index, 1) break } } }, DEL_OTHERS_VIEWS: (state, view) => { for (const [i, v] of state.visitedViews.entries()) { if (v.path === view.path) { state.visitedViews = state.visitedViews.slice(i, i + 1) break } } for (const i of state.cachedViews) { if (i === view.name) { const index = state.cachedViews.indexOf(i) state.cachedViews = state.cachedViews.slice(index, i + 1) break } } }, DEL_ALL_VIEWS: (state) => { state.visitedViews = [] state.cachedViews = [] } }, actions: { addVisitedViews({ commit }, view) { commit('ADD_VISITED_VIEWS', view) }, delVisitedViews({ commit, state }, view) { return new Promise((resolve) => { commit('DEL_VISITED_VIEWS', view) resolve([...state.visitedViews]) }) }, delOthersViews({ commit, state }, view) { return new Promise((resolve) => { commit('DEL_OTHERS_VIEWS', view) resolve([...state.visitedViews]) }) }, delAllViews({ commit, state }) { return new Promise((resolve) => { commit('DEL_ALL_VIEWS') resolve([...state.visitedViews]) }) } }}export default tagsView
创建 scrollPane.vue
<template> <div class="scroll-container" ref="scrollContainer" @wheel.prevent="handleScroll"> <div class="scroll-wrapper" ref="scrollWrapper" :> <slot></slot> </div> </div></template> <script> const padding = 15 // tag's padding export default { name: 'scrollPane', data() { return { left: 0 } }, methods: { handleScroll(e) { const eventDelta = e.wheelDelta || -e.deltaY * 3//wheelDelta:-120;deltaY:-120 const $container = this.$refs.scrollContainer//外面的container const $containerWidth = $container.offsetWidth//外面的container的宽度 const $wrapper = this.$refs.scrollWrapper//里面 const $wrapperWidth = $wrapper.offsetWidth//里面的宽度 if (eventDelta > 0) { this.left = Math.min(0, this.left + eventDelta)//min() 方法可返回指定的数字中带有最低值的数字。 } else { if ($containerWidth - padding < $wrapperWidth) { if (this.left < -($wrapperWidth - $containerWidth + padding)) { this.left = this.left } else { this.left = Math.max(this.left + eventDelta, $containerWidth - $wrapperWidth - padding) } } else { this.left = 0 } } }, moveToTarget($target) { const $container = this.$refs.scrollContainer const $containerWidth = $container.offsetWidth const $targetLeft = $target.offsetLeft const $targetWidth = $target.offsetWidth if ($targetLeft < -this.left) { this.left = -$targetLeft + padding } else if ($targetLeft + padding > -this.left && $targetLeft + $targetWidth < -this.left + $containerWidth - padding) { } else { this.left = -($targetLeft - ($containerWidth - $targetWidth) + padding) } } } }</script><style> .scroll-container { white-space: nowrap; position: relative; overflow: hidden; width: 100%; height: 100%; box-sizing: border-box; } .scroll-wrapper { height: 100%; line-height: 41px; position: absolute; }</style>
store中index.js配置
import Vue from 'vue'import Vuex from 'vuex'import * as types from './types'import tagsView from '../assets/js/tagsview'Vue.use(Vuex) const store = new Vuex.Store({ modules: { tagsView }})export default store
store中的type.js配置
export const LOGIN = 'login'export const LOGOUT = 'logout'export const TITLE = 'title'
router.js修改配置
对点击左侧按钮根据router-view显示 清理缓存
最后在main.js中引入 store.js
import store from './store/index' // 导入状态管理器VueX new Vue({ el: '#app', router, store, components: { App }, template: '<App/>'})
到此,关于“vue项目怎么实现面包屑导航”的学习就结束了,希望能够解决大家的疑惑。理论与实践的搭配能更好的帮助大家学习,快去试试吧!若想继续学习更多相关知识,请继续关注编程网网站,小编会继续努力为大家带来更多实用的文章!