组件封装
在上一篇记录中,首页中有太多的代码,为了避免代码的臃肿,需要对主要的功能模块拆分,来让代码看起来更简洁,且能进行复用。
拆分后还加了些小功能,加入了修改 title 的代码,修改方式参考vue 动态修改 title。
还增加了当前请求的页面缓存,使用状态管理器处理。监听路由,保存到 state 中,来处理的。 如何监听可参考vue 计算属性和监听属性。
完整效果图如下:
首页布局拆分后结构
拆分后的,布局结构图:
拆分后代码
布局最外层 index 代码,使用头部,侧边栏,主内容栏组成,代码如下:
- <!-- 布局的首页 -->
- <template>
- <div>
- <l-header></l-header>
- <l-aside></l-aside>
- <l-main></l-main>
- </div>
- </template>
- <script>
- import LHeader from './components/header'
- import LAside from './components/aside'
- import LMain from './components/main'
- export default {
- data() {
- return {}
- },
- //引入组件
- components: {
- LHeader,
- LAside,
- LMain,
- },
- }
- </script>
- <style lang="scss" scoped></style>
头部 index.vue 代码:
- <!-- 头部文件 -->
- <template>
- <div class="header">
- <!-- logo -->
- <logo></logo>
- <!-- 折叠按钮 -->
- <hamburger></hamburger>
- <!-- 头部导航栏 -->
- <div class="heardNavBar">
- <el-menu default-active="1" class="el-menu-demo" background-color="#4b5f6e" text-color="#fff" active-text-color="#ffd04b" mode="horizontal">
- <el-menu-item index="1" @click="$router.push('/')">首页</el-menu-item>
- <el-menu-item index="2" @click="openUrl('#')">使用文档</el-menu-item>
- <el-menu-item index="3" @click="openUrl('https://github.com/levy-w-wang/lion-ui')">GitHub</el-menu-item>
- </el-menu>
- </div>
- <!-- 右侧信息 -->
- <div style="float:right">
- <!-- 全屏 -->
- <div style="float:left;line-height: 60px; padding: 0 10px;">
- <i class="el-icon-full-screen" @click="toggleFull"></i>
- </div>
- <!-- 个人信息 -->
- <div class="userinfo">
- <el-dropdown trigger="hover">
- <span class="el-dropdown-link userinfo-inner">
- <img src="@assets/img/user.jpg" />
- {{ $store.getters.userInfo.username }}<i class="el-icon-caret-bottom"></i>
- </span>
- <el-dropdown-menu slot="dropdown">
- <el-dropdown-item>
- <router-link to="/"><i class="el-icon-s-home"></i>首页</router-link>
- </el-dropdown-item>
- <el-dropdown-item>
- <router-link to="/"><i class="el-icon-s-custom"></i>我的主页</router-link>
- </el-dropdown-item>
- <el-dropdown-item divided>
- <a @click="loginOut()"><i class="el-icon-switch-button"></i>登出</a>
- </el-dropdown-item>
- </el-dropdown-menu>
- </el-dropdown>
- </div>
- </div>
- </div>
- </template>
- <script>
- import screenfull from 'screenfull'
- import hamburger from './hamburger'
- import logo from './logo'
- // import { mapState } from 'vuex'
- export default {
- data() {
- return {}
- },
- computed: {
- // ...mapState({
- // isCollapse: (state) => state.app.isCollapse,
- // }),
- },
- //引入组件
- components: {
- hamburger,
- logo,
- },
- // 方法
- methods: {
- openUrl(url) {
- window.open(url)
- },
- loginOut() {
- this.$confirm('确认退出吗?', '提示', {
- type: 'warning',
- })
- .then(() => {
- this.$store.commit('logout')
- })
- .catch(() => {})
- },
- toggleFull() {
- if (!screenfull.isEnabled) {
- this.$message({
- type: 'warning',
- message: 'you browser can not work',
- })
- return false
- }
- screenfull.toggle()
- },
- },
- //未挂载DOM,不能访问ref为空数组
- //可在这结束loading,还做一些初始化,实现函数自执行,
- //可以对data数据进行操作,可进行一些请求,请求不易过多,避免白屏时间太长。
- created() {},
- //可在这发起后端请求,拿回数据,配合路由钩子做一些事情;可对DOM 进行操作
- mounted() {},
- }
- </script>
- <style lang="scss" scoped>
- .header {
- padding-left: 0px !important;
- height: 60px;
- line-height: 60px;
- width: 100%;
- background: #4b5f6e;
- color: #fff;
- .heardNavBar {
- float: left;
- background: #4b5f6e;
- padding: 0px 0px;
- height: 60px;
- line-height: 60px;
- font-size: 28px;
- cursor: pointer;
- }
- .userinfo {
- text-align: right;
- padding-right: 24px;
- float: right;
- padding: 0 10px;
- .userinfo-inner {
- font-size: 20px;
- cursor: pointer;
- color: #fff;
- img {
- width: 40px;
- height: 40px;
- border-radius: 10px;
- margin: 10px 0px 10px 10px;
- float: right;
- }
- }
- }
- }
- </style>
头部中引用的相关组件代码如下
折叠导航栏 hamburger 下的 index.vue 代码:
- <template>
- <div @click="toggleCollapse">
- <svg :class="{ 'is-active': !isCollapse }" class="hamburger" viewBox="0 0 1024 1024" xmlns="http://www.w3.org/2000/svg" width="64" height="64">
- <path d="M408 442h480c4.4 0 8-3.6 8-8v-56c0-4.4-3.6-8-8-8H408c-4.4 0-8 3.6-8 8v56c0 4.4 3.6 8 8 8zm-8 204c0 4.4 3.6 8 8 8h480c4.4 0 8-3.6 8-8v-56c0-4.4-3.6-8-8-8H408c-4.4 0-8 3.6-8 8v56zm504-486H120c-4.4 0-8 3.6-8 8v56c0 4.4 3.6 8 8 8h784c4.4 0 8-3.6 8-8v-56c0-4.4-3.6-8-8-8zm0 632H120c-4.4 0-8 3.6-8 8v56c0 4.4 3.6 8 8 8h784c4.4 0 8-3.6 8-8v-56c0-4.4-3.6-8-8-8zM142.4 642.1L298.7 519a8.84 8.84 0 0 0 0-13.9L142.4 381.9c-5.8-4.6-14.4-.5-14.4 6.9v246.3a8.9 8.9 0 0 0 14.4 7z" />
- </svg>
- </div>
- </template>
- <script>
- import { mapState } from 'vuex'
- export default {
- name: 'Hamburger',
- computed: {
- ...mapState({
- isCollapse: (state) => state.app.isCollapse,
- }),
- },
- methods: {
- //折叠导航栏
- toggleCollapse: function () {
- this.$store.commit('toggleCollapse')
- },
- },
- }
- </script>
- <style scoped>
- .hamburger {
- padding-left: 13px;
- padding-right: 13px;
- text-align: center;
- width: 34px;
- height: 60px;
- line-height: 60px;
- float: left;
- cursor: pointer;
- }
- .is-active {
- transform: rotate(180deg);
- }
- </style>
折叠导航栏 logo 下的 index.vue 代码:
- <!-- -->
- <template>
- <div class="logo" :class="isCollapse ? 'logo-collapse-width' : 'logo-width'">
- <img v-if="isCollapse" src="@assets/logo6065.png" @click="$router.push('/')" />
- <img v-else src="@assets/logo.png" @click="$router.push('/')" />
- </div>
- </template>
- <script>
- import { mapState } from 'vuex'
- export default {
- data() {
- return {}
- },
- computed: {
- ...mapState({
- isCollapse: (state) => state.app.isCollapse,
- }),
- },
- }
- </script>
- <style lang="scss" scoped>
- .logo {
- float: left;
- height: 60px;
- padding: 0;
- margin: 0;
- }
- .logo-width {
- width: 230px;
- }
- .logo-collapse-width {
- width: 65px;
- }
- </style>
侧边栏下的 index.vue代码:
- <!-- aside -->
- <template>
- <div class="aside-container" :class="isCollapse ? 'aside-collapse-width' : 'aside-width'">
- <!--导航菜单 default-active="1-1"-->
- <el-menu class="el-menu-vertical-demo" :class="isCollapse ? 'aside-collapse-width' : 'aside-width'" :collapse-transition="false" :unique-opened="true" :collapse="isCollapse">
- <el-submenu index="1">
- <template slot="title">
- <i class="el-icon-setting"></i>
- <span slot="title">系统管理</span>
- </template>
- <el-menu-item index="1-1" @click="$router.push('usermanage')">用户管理</el-menu-item>
- <el-menu-item index="1-2" @click="$router.push('menumanage')">菜单管理</el-menu-item>
- </el-submenu>
- <el-menu-item index="2" disabled>
- <i class="el-icon-magic-stick"></i>
- <span slot="title">导航一</span>
- </el-menu-item>
- <el-menu-item index="3" disabled>
- <i class="el-icon-reading"></i>
- <span slot="title">导航二</span>
- </el-menu-item>
- </el-menu>
- </div>
- </template>
- <script>
- import { mapState } from 'vuex'
- export default {
- data() {
- return {}
- },
- //$store.getters.isCollapse
- computed: {
- ...mapState({
- isCollapse: (state) => state.app.isCollapse,
- }),
- mainTabs: {
- get() {
- return this.$store.state.app.mainTabs
- },
- set(val) {
- this.$store.commit('updateMainTabs', val)
- },
- },
- mainTabsActiveName: {
- get() {
- return this.$store.state.app.mainTabsActiveName
- },
- set(val) {
- this.$store.commit('updateMainTabsActiveName', val)
- },
- },
- },
- watch: {
- $route: 'handleRoute',
- },
- created() {
- console.log(this.$route)
- this.handleRoute(this.$route)
- },
- methods: {
- // 路由操作处理
- handleRoute(route) {
- // tab标签页选中, 如果不存在则先添加
- var tab = this.mainTabs.filter((item) => item.name === route.name)[0]
- if (!tab) {
- tab = {
- name: route.name,
- title: route.meta.title,
- icon: route.meta.icon,
- }
- this.mainTabs = this.mainTabs.concat(tab)
- }
- this.mainTabsActiveName = tab.name
- },
- },
- }
- </script>
- <style lang="scss" scoped>
- .aside-container {
- position: fixed;
- top: 0px;
- left: 0;
- bottom: 0;
- z-index: 1020;
- .el-menu {
- position: absolute;
- top: 60px;
- bottom: 0px;
- text-align: left;
- }
- }
- .aside-width {
- width: 230px;
- }
- .aside-collapse-width {
- width: 65px;
- }
- </style>
内容模块下的 index.vue代码:
- <!-- -->
- <template>
- <div class="main-container clear" :class="isCollapse ? 'position-collapse-left' : 'position-left'">
- <!-- 标签页 -->
- <el-tabs class="tabs" :class="isCollapse ? 'position-collapse-left' : 'position-left'" v-model="mainTabsActiveName" :closable="true" type="card" @tab-click="selectedTabHandle" @tab-remove="removeTabHandle">
- <el-dropdown class="tabs-tools" :show-timeout="0" trigger="hover">
- <div style="font-size:20px;width:50px;">
- <i class="el-icon-arrow-down"></i>
- </div>
- <el-dropdown-menu slot="dropdown">
- <el-dropdown-item @click.native="tabsCloseCurrentHandle">关闭当前标签</el-dropdown-item>
- <el-dropdown-item @click.native="tabsCloseOtherHandle">关闭其它标签</el-dropdown-item>
- <el-dropdown-item @click.native="tabsCloseAllHandle">关闭全部标签</el-dropdown-item>
- <el-dropdown-item @click.native="tabsRefreshCurrentHandle">刷新当前标签</el-dropdown-item>
- </el-dropdown-menu>
- </el-dropdown>
- <el-tab-pane v-for="item in mainTabs" :key="item.name" :label="item.title" :name="item.name">
- <span slot="label"> <i :class="item.icon"></i> {{ item.title }} </span>
- </el-tab-pane>
- </el-tabs>
- <!-- 主内容区域 -->
- <div class="main-content">
- <keep-alive>
- <transition name="fade" mode="out-in">
- <router-view></router-view>
- </transition>
- </keep-alive>
- </div>
- </div>
- </template>
- <script>
- import { mapState } from 'vuex'
- export default {
- data() {
- return {}
- },
- computed: {
- ...mapState({
- isCollapse: (state) => state.app.isCollapse,
- }),
- mainTabs: {
- get() {
- return this.$store.state.app.mainTabs
- },
- set(val) {
- this.$store.commit('updateMainTabs', val)
- },
- },
- mainTabsActiveName: {
- get() {
- return this.$store.state.app.mainTabsActiveName
- },
- set(val) {
- this.$store.commit('updateMainTabsActiveName', val)
- },
- },
- },
- methods: {
- // tabs, 选中tab
- selectedTabHandle(tab) {
- tab = this.mainTabs.filter((item) => item.name === tab.name)
- if (tab.length >= 1) {
- this.$router.push({ name: tab[0].name })
- }
- },
- // tabs, 删除tab
- removeTabHandle(tabName) {
- // 当只有首页时,不允许关掉。 若是其它页面可关掉后,push 首页进去
- if (this.mainTabs.length == 1 && this.mainTabs[0].name == 'index') {
- return
- }
- this.mainTabs = this.mainTabs.filter((item) => item.name !== tabName)
- if (this.mainTabs.length >= 1) {
- // 当前选中tab被删除
- if (tabName === this.mainTabsActiveName) {
- this.$router.push({ name: this.mainTabs[this.mainTabs.length - 1].name }, () => {
- this.mainTabsActiveName = this.$route.name
- })
- }
- } else {
- this.$router.push('/')
- }
- },
- // tabs, 关闭当前
- tabsCloseCurrentHandle() {
- this.removeTabHandle(this.mainTabsActiveName)
- },
- // tabs, 关闭其它
- tabsCloseOtherHandle() {
- this.mainTabs = this.mainTabs.filter((item) => item.name === this.mainTabsActiveName)
- },
- // tabs, 关闭全部
- tabsCloseAllHandle() {
- this.mainTabs = []
- this.$router.push('/')
- },
- // tabs, 刷新当前
- tabsRefreshCurrentHandle() {
- var tempTabName = this.mainTabsActiveName
- this.removeTabHandle(tempTabName)
- this.$nextTick(() => {
- this.$router.push({ name: tempTabName })
- })
- },
- },
- }
- </script>
- <style lang="scss" scoped>
- .main-container {
- padding: 0 5px 5px;
- position: absolute;
- top: 60px;
- left: 1px;
- right: 1px;
- bottom: 0px;
- .tabs {
- position: fixed;
- top: 60px;
- right: 50px;
- padding-left: 0px;
- padding-right: 2px;
- z-index: 1020;
- height: 40px;
- line-height: 40px;
- font-size: 14px;
- background: rgb(255, 253, 255);
- border-color: rgba(200, 206, 206, 0.5);
- // border-left-width: 1px;
- // border-left-style: solid;
- border-bottom-width: 1px;
- border-bottom-style: solid;
- }
- .tabs-tools {
- position: fixed;
- top: 60px;
- right: 0;
- z-index: 1020;
- height: 40px;
- // padding: 0 10px;
- font-size: 14px;
- line-height: 40px;
- cursor: pointer;
- border-color: rgba(200, 206, 206, 0.5);
- border-left-width: 1px;
- border-left-style: solid;
- border-bottom-width: 1px;
- border-bottom-style: solid;
- background: rgba(255, 255, 255, 1);
- }
- .tabs-tools:hover {
- background: rgba(200, 206, 206, 1);
- }
- .main-content {
- position: absolute;
- top: 45px;
- left: 5px;
- right: 5px;
- bottom: 5px;
- padding: 5px;
- // background: rgba(209, 212, 212, 0.5);
- }
- }
- .position-left {
- left: 230px;
- }
- .position-collapse-left {
- left: 65px;
- }
- </style>
状态管理中添加 app 模块
代码如下:
- export default {
- state: {
- // 是否折叠导航栏
- isCollapse: false,
- // 访问页集合
- mainTabs: [],
- // 当前访问页名
- mainTabsActiveName: '',
- },
- getters: {
- isCollapse: (state) => {
- return state.isCollapse
- },
- },
- mutations: {
- toggleCollapse(state) {
- state.isCollapse = !state.isCollapse
- },
- updateMainTabs(state, tabs) {
- state.mainTabs = tabs
- },
- updateMainTabsActiveName(state, name) {
- state.mainTabsActiveName = name
- },
- },
- actions: {},
- }
当然还有一些小的调整点,可参考 git 上的提交版本 首页组件拆分
总结
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原文链接:https://www.cnblogs.com/levywang/p/13543734.html