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src/layout/components/Sidebar/SidebarItem.vue

@@ -0,0 +1,103 @@
+<template>
+  <div v-if="!item.hidden">
+    <template v-if="hasOneShowingChild(item.children,item) && (!onlyOneChild.children||onlyOneChild.noShowingChildren)&&!item.alwaysShow">
+      <app-link v-if="onlyOneChild.meta" :to="resolvePath(onlyOneChild.path)">
+        <el-menu-item :index="resolvePath(onlyOneChild.path)" :class="{'submenu-title-noDropdown':!isNest}">
+          <item :icon="onlyOneChild.meta.icon||(item.meta&&item.meta.icon)" :title="onlyOneChild.meta.title" />
+        </el-menu-item>
+      </app-link>
+    </template>
+
+    <el-submenu v-else ref="subMenu" :index="resolvePath(item.path)" popper-append-to-body>
+      <template #title>
+        <svg
+            v-if="item.meta && item.meta.icon"
+            class="icon"
+            aria-hidden="true"
+            font-size="16px"
+        >
+          <use :xlink:href="item.meta.icon" />
+        </svg>
+        <span v-if="item.meta && item.meta.title">{{
+            t("route." + item.meta.title)
+          }}</span>
+      </template>
+
+      <sidebar-item
+        v-for="child in item.children"
+        :key="child.path"
+        :is-nest="true"
+        :item="child"
+        :base-path="resolvePath(child.path)"
+        class="nest-menu"
+      />
+    </el-submenu>
+  </div>
+</template>
+
+<script>
+import path from 'path'
+import { isExternal } from '@utils/validate'
+import AppLink from './Link.vue'
+
+export default {
+  name: 'SidebarItem',
+  components: {  AppLink },
+  props: {
+    // route object
+    item: {
+      type: Object,
+      required: true
+    },
+    isNest: {
+      type: Boolean,
+      default: false
+    },
+    basePath: {
+      type: String,
+      default: ''
+    }
+  },
+  data() {
+    // To fix https://github.com/PanJiaChen/vue-admin-template/issues/237
+    // TODO: refactor with render function
+    this.onlyOneChild = null
+    return {}
+  },
+  methods: {
+    hasOneShowingChild(children = [], parent) {
+      const showingChildren = children.filter(item => {
+        if (item.hidden) {
+          return false
+        } else {
+          // Temp set(will be used if only has one showing child)
+          this.onlyOneChild = item
+          return true
+        }
+      })
+
+      // When there is only one child router, the child router is displayed by default
+      if (showingChildren.length === 1) {
+        return true
+      }
+
+      // Show parent if there are no child router to display
+      if (showingChildren.length === 0) {
+        this.onlyOneChild = { ... parent, path: '', noShowingChildren: true }
+        return true
+      }
+
+      return false
+    },
+    resolvePath(routePath) {
+      if (isExternal(routePath)) {
+        return routePath
+      }
+      if (isExternal(this.basePath)) {
+        return this.basePath
+      }
+      return path.resolve(this.basePath, routePath)
+    }
+  }
+}
+</script>