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- <template>
- <div class="head-container">
- <div class="head-container-header">
- <div class="head-container-header-input">
- <el-input v-model="searchName" suffix-icon="search" :placeholder="placeholder" clearable @change="getdeptTree" />
- </div>
- <div class="head-container-header-dropdown" v-if="showExpand">
- <el-dropdown :hide-on-click="false">
- <el-icon style="transform: rotate(90deg)">
- <MoreFilled />
- </el-icon>
- <template #dropdown>
- <el-dropdown-menu>
- <el-dropdown-item>
- <el-button
- :class="buttonClass"
- link
- type="primary"
- :icon="isExpand ? 'expand' : 'fold'"
- @click="toggleRowExpansionAll(isExpand ? false : true)"
- >
- {{ isExpand ? '折叠' : '展开' }}
- </el-button>
- </el-dropdown-item>
- </el-dropdown-menu>
- </template>
- </el-dropdown>
- </div>
- </div>
- <el-tree
- class="mt20"
- :data="state.List"
- :props="props.props"
- :expand-on-click-node="false"
- ref="deptTreeRef"
- :loading="state.localLoading"
- node-key="id"
- highlight-current
- default-expand-all
- @node-click="handleNodeClick"
- >
- <template #default="{ node, data }" v-if="$slots.default">
- <slot :node="node" :data="data"></slot>
- </template>
- </el-tree>
- </div>
- </template>
- <script setup lang="ts" name="query-tree">
- import { useMessage } from '/@/hooks/message';
- const emit = defineEmits(['search', 'nodeClick']);
- const props = defineProps({
- /**
- * 树结构属性配置。
- *
- * @default { label: 'name', children: 'children', value: 'id' }
- */
- props: {
- type: Object,
- default: () => {
- return {
- label: 'name',
- children: 'children',
- value: 'id',
- };
- },
- },
- /**
- * 输入框占位符。
- *
- * @default ''
- */
- placeholder: {
- type: String,
- default: '',
- },
- /**
- * 是否显示加载中状态。
- *
- * @default false
- */
- loading: {
- type: Boolean,
- default: false,
- },
- /**
- * 查询函数,必须返回 Promise 类型数据。
- */
- query: {
- type: Function,
- required: true,
- },
- /**
- * 是否显示折叠控制
- */
- showExpand: {
- type: Boolean,
- default: false,
- },
- });
- const state = reactive({
- List: [], // 树形结构列表数据
- localLoading: props.loading, // 是否加载中
- });
- const deptTreeRef = ref(); // 部门树形结构组件实例引用
- const searchName = ref(); // 查询关键字
- const isExpand = ref(true); // 是否展开所有节点
- const buttonClass = computed(() => {
- return ['!h-[20px]', 'reset-margin', '!text-gray-500', 'dark:!text-white', 'dark:hover:!text-primary'];
- });
- /**
- * 点击树形结构节点触发的事件。
- *
- * @param item 被点击的节点数据。
- */
- const handleNodeClick = (item: any) => {
- emit('nodeClick', item);
- };
- /**
- * 获取部门树形结构数据。
- */
- const getdeptTree = () => {
- if (props.query instanceof Function) {
- state.localLoading = true;
- // 调用传入的查询函数,并将查询关键字作为参数传入
- const result = props.query(unref(searchName));
- // 如果查询结果为 Promise 类型,则进行后续处理
- if ((typeof result === 'object' || typeof result === 'function') && typeof result.then === 'function') {
- result
- .then((r: any) => {
- state.List = r.data;
- })
- .catch((err) => {
- useMessage().error(err.msg);
- });
- }
- }
- };
- /**
- * 切换所有节点的展开/收起状态。
- *
- * @param status 目标状态,true 为展开,false 为收起。
- */
- const toggleRowExpansionAll = (status) => {
- isExpand.value = status;
- const nodes = deptTreeRef.value.store._getAllNodes();
- for (let i = 0; i < nodes.length; i++) {
- nodes[i].expanded = status;
- }
- };
- onMounted(() => {
- getdeptTree();
- });
- // 方便父组件调用刷新树方法
- defineExpose({
- getdeptTree,
- });
- </script>
- <style lang="scss" scoped>
- .head-container {
- &-header {
- display: flex;
- align-items: center;
- &-input {
- width: 90%;
- }
- &-dropdown {
- flex: 1;
- margin-left: 5%;
- }
- }
- }
- </style>
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