init

src/views/permission/directive.vue

@@ -0,0 +1,111 @@
+<template>
+  <div class="app-container">
+    <switch-roles @change="handleRolesChange" />
+    <div :key="key" style="margin-top:30px;">
+      <div>
+        <span v-permission="['admin']" class="permission-alert">
+          Only
+          <el-tag class="permission-tag" size="small">admin</el-tag> can see this
+        </span>
+        <el-tag v-permission="['admin']" class="permission-sourceCode" type="info">
+          v-permission="['admin']"
+        </el-tag>
+      </div>
+
+      <div>
+        <span v-permission="['editor']" class="permission-alert">
+          Only
+          <el-tag class="permission-tag" size="small">editor</el-tag> can see this
+        </span>
+        <el-tag v-permission="['editor']" class="permission-sourceCode" type="info">
+          v-permission="['editor']"
+        </el-tag>
+      </div>
+
+      <div>
+        <span v-permission="['admin','editor']" class="permission-alert">
+          Both
+          <el-tag class="permission-tag" size="small">admin</el-tag> and
+          <el-tag class="permission-tag" size="small">editor</el-tag> can see this
+        </span>
+        <el-tag v-permission="['admin','editor']" class="permission-sourceCode" type="info">
+          v-permission="['admin','editor']"
+        </el-tag>
+      </div>
+    </div>
+
+    <div :key="'checkPermission'+key" style="margin-top:60px;">
+      <aside>
+        In some cases, using v-permission will have no effect. For example: Element-UI's Tab component or el-table-column and other scenes that dynamically render dom. You can only do this with v-if.
+        <br> e.g.
+      </aside>
+
+      <el-tabs type="border-card" style="width:550px;">
+        <el-tab-pane v-if="checkPermission(['admin'])" label="Admin">
+          Admin can see this
+          <el-tag class="permission-sourceCode" type="info">
+            v-if="checkPermission(['admin'])"
+          </el-tag>
+        </el-tab-pane>
+
+        <el-tab-pane v-if="checkPermission(['editor'])" label="Editor">
+          Editor can see this
+          <el-tag class="permission-sourceCode" type="info">
+            v-if="checkPermission(['editor'])"
+          </el-tag>
+        </el-tab-pane>
+
+        <el-tab-pane v-if="checkPermission(['admin','editor'])" label="Admin-OR-Editor">
+          Both admin or editor can see this
+          <el-tag class="permission-sourceCode" type="info">
+            v-if="checkPermission(['admin','editor'])"
+          </el-tag>
+        </el-tab-pane>
+      </el-tabs>
+    </div>
+  </div>
+</template>
+
+<script>
+import permission from '@/directive/permission/index.js' // 权限判断指令
+import checkPermission from '@/utils/permission' // 权限判断函数
+import SwitchRoles from './components/SwitchRoles'
+
+export default {
+  name: 'DirectivePermission',
+  components: { SwitchRoles },
+  directives: { permission },
+  data() {
+    return {
+      key: 1 // 为了能每次切换权限的时候重新初始化指令
+    }
+  },
+  methods: {
+    checkPermission,
+    handleRolesChange() {
+      this.key++
+    }
+  }
+}
+</script>
+
+<style lang="scss" scoped>
+.app-container {
+  ::v-deep .permission-alert {
+    width: 320px;
+    margin-top: 15px;
+    background-color: #f0f9eb;
+    color: #67c23a;
+    padding: 8px 16px;
+    border-radius: 4px;
+    display: inline-block;
+  }
+  ::v-deep .permission-sourceCode {
+    margin-left: 15px;
+  }
+  ::v-deep .permission-tag {
+    background-color: #ecf5ff;
+  }
+}
+</style>
+