菜单收缩按钮及接入 vuex #

<template>
  <div
    class="hamburger-container"
    style="padding: 0 15px"
    @click="toggleClick"
  >
    <svg
      :class="{'is-active': isActive}"
      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 lang="ts">
import { defineComponent } from 'vue'

export default defineComponent({
  name: 'Hambuger',
  props: {
    isActive: {
      type: Boolean,
      default: false
    }
  },
  // vue3新增 emits选项
  // 1.起到声明的作用 让你知道当前组件  会emit出去哪些事件
  // 2.可以对emit的参数进行效验 通过就可以emit出去 否则不能emit
  // 具体使用说明看文档 https://v3.cn.vuejs.org/api/options-data.html#emits
  emits: ['toggleClick'], // vue3 emits声明列表
  setup (props, { emit }) {
    const toggleClick = () => {
      emit('toggleClick')
    }

    return {
      toggleClick
    }
  }
})
</script>

<style lang="scss" scoped>
  .hamburger-container {
    line-height: 46px;
    height: 100%;
    float: left;
    cursor: pointer;
    transition: background .3s;
    -webkit-tap-highlight-color: transparent;
    &:hover {
      background: rgba(0, 0, 0, .025);
    }
  }
  .hamburger {
    display: inline-block;
    vertical-align: middle;
    width: 20px;
    height: 20px;
  }

  .hamburger.is-active {
    transform: rotate(180deg);
  }
</style>

<template>
  <div class="navbar">
    <hambuger  @toggleClick="toggleSidebar" :is-active="true"/>
    <breadcrumb />
  </div>
</template>

<script lang="ts">
import { defineComponent } from 'vue'
import Breadcrumb from '@/components/Breadcrumb/index.vue'
import Hambuger from '@/components/Hambuger/index.vue'

export default defineComponent({
  name: 'Navbar',
  components: {
    Breadcrumb,
    Hambuger
  },
  setup() {
    const toggleSidebar = () => {
      console.log('click')
    }

    return {
      toggleSidebar
    }
  }
})
</script>

<template>
  <div class="navbar">
    <hambuger  @toggleClick="toggleSidebar" :is-active="sidebar.opened"/>
    <breadcrumb />
  </div>
</template>

<script lang="ts">
import { defineComponent, computed } from 'vue'
import Breadcrumb from '@/components/Breadcrumb/index.vue'
import Hambuger from '@/components/Hambuger/index.vue'
import { useStore } from '@/store/index'

export default defineComponent({
  name: 'Navbar',
  components: {
    Breadcrumb,
    Hambuger
  },
  setup() {
    // 使用我们自定义的useStore 具备类型提示
    // store.state.app.sidebar 对于getters里的属性没有类型提示
    const store = useStore()
    const toggleSidebar = () => {
      store.dispatch('app/toggleSidebar')
    }
    // 从getters中获取sidebar
    const sidebar = computed(() => store.getters.sidebar)

    return {
      toggleSidebar,
      sidebar
    }
  }
})
</script>

<template>
  <div>
    <el-menu
      class="sidebar-container-menu"
      mode="vertical"
      :default-active="activeMenu"
      :background-color="scssVariables.menuBg"
      :text-color="scssVariables.menuText"
      :active-text-color="scssVariables.menuActiveText"
      :collapse="isCollapse"
      :collapse-transition="true"
    >
      <sidebar-item
        v-for="route in menuRoutes"
        :key="route.path"
        :item="route"
        :base-path="route.path"
      />
    </el-menu>
  </div>
</template>

<script lang="ts">
import { defineComponent, computed, ref } from 'vue'
import { useRoute } from 'vue-router'
import variables from '@/styles/variables.scss'
import { routes } from '@/router'
import SidebarItem from './SidebarItem.vue'
import { useStore } from '@/store'

export default defineComponent({
  name: 'Sidebar',
  components: {
    SidebarItem
  },
  setup() {
    const route = useRoute()
    const store = useStore()
    // 根据路由路径 对应 当前激活的菜单
    const activeMenu = computed(() => {
      const { path } = route
      return path
    })
    // scss变量
    const scssVariables = computed(() => variables)
    // 展开收起状态 稍后放store 当前是展开就让它收起
    const isCollapse = computed(() => !store.getters.sidebar.opened)

    // 渲染路由
    const menuRoutes = computed(() => routes)

    return {
      // ...toRefs(variables), // 不有toRefs原因 缺点variables里面变量属性来源不明确
      scssVariables,
      isCollapse,
      activeMenu,
      menuRoutes
    }
  }
})
</script>