135 lines
4.2 KiB
Vue
135 lines
4.2 KiB
Vue
<template>
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<PageWrapper title="Tree基础示例">
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<Row :gutter="[16, 16]">
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<Col :span="8">
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<BasicTree title="基础示例，默认展开第一层" :treeData="treeData" defaultExpandLevel="1">
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<template #icon><SmileTwoTone /></template>
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<template #title>666</template>
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<template #switcherIcon> <CarryOutOutlined /></template>
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</BasicTree>
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</Col>
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<Col :span="8">
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<BasicTree
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title="可勾选，默认全部展开"
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:treeData="treeData"
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:checkable="true"
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defaultExpandAll
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@check="handleCheck"
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/>
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</Col>
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<Col :span="8">
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<BasicTree
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title="指定默认展开/勾选示例"
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:treeData="treeData"
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:checkable="true"
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:expandedKeys="['0-0']"
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:checkedKeys="['0-0']"
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/>
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</Col>
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<Col :span="8">
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<BasicTree
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title="懒加载异步树"
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ref="asyncTreeRef"
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:treeData="tree"
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:load-data="onLoadData"
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/>
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</Col>
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<Col :span="8">
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<Card title="异步数据，默认展开">
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<template #extra>
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<a-button @click="loadTreeData" :loading="treeLoading">加载数据</a-button>
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</template>
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<Spin :spinning="treeLoading">
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<BasicTree ref="asyncExpandTreeRef" :treeData="tree2" />
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</Spin>
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</Card>
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</Col>
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<Col :span="8">
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<Card title="BasicTree内置加载">
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<template #extra>
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<a-button @click="loadTreeData2" :loading="treeLoading">请求数据</a-button>
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</template>
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<BasicTree ref="loadTreeRef" :treeData="tree2" :loading="treeLoading" />
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</Card>
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</Col>
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</Row>
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</PageWrapper>
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</template>
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<script lang="ts" setup>
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import { nextTick, ref, unref } from 'vue';
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import { BasicTree, TreeActionType, TreeItem } from '/@/components/Tree/index';
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import { treeData } from './data';
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import { PageWrapper } from '/@/components/Page';
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import { Card, Row, Col, Spin } from 'ant-design-vue';
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import { cloneDeep, uniq } from 'lodash-es';
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import { isArray } from '/@/utils/is';
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import { type Nullable } from '@vben/types';
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import { SmileTwoTone, CarryOutOutlined } from '@ant-design/icons-vue';
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const asyncTreeRef = ref<Nullable<TreeActionType>>(null);
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const asyncExpandTreeRef = ref<Nullable<TreeActionType>>(null);
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const loadTreeRef = ref<Nullable<TreeActionType>>(null);
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const tree2 = ref<TreeItem[]>([]);
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const treeLoading = ref(false);
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function handleCheck(checkedKeys, e) {
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console.log('onChecked', checkedKeys, e);
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}
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function loadTreeData() {
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treeLoading.value = true;
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// 以下是模拟异步获取数据
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setTimeout(() => {
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// 设置数据源
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tree2.value = cloneDeep(treeData);
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treeLoading.value = false;
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// 展开全部
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nextTick(() => {
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console.log(unref(asyncExpandTreeRef));
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unref(asyncExpandTreeRef)?.expandAll(true);
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});
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}, 2000);
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}
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function loadTreeData2() {
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treeLoading.value = true;
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// 以下是模拟异步获取数据
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setTimeout(() => {
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// 设置数据源
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tree2.value = cloneDeep(treeData);
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treeLoading.value = false;
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}, 2000);
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}
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const tree = ref([
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{
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title: 'parent ',
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key: '0-0',
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},
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]);
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function onLoadData(treeNode) {
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return new Promise((resolve: (value?: unknown) => void) => {
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if (isArray(treeNode.children) && treeNode.children.length > 0) {
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resolve();
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return;
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}
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setTimeout(() => {
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const asyncTreeAction: TreeActionType | null = unref(asyncTreeRef);
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if (asyncTreeAction) {
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const nodeChildren = [
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{ title: `Child Node ${treeNode.eventKey}-0`, key: `${treeNode.eventKey}-0` },
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{ title: `Child Node ${treeNode.eventKey}-1`, key: `${treeNode.eventKey}-1` },
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];
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asyncTreeAction.updateNodeByKey(treeNode.eventKey, { children: nodeChildren });
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asyncTreeAction.setExpandedKeys(
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uniq([treeNode.eventKey, ...asyncTreeAction.getExpandedKeys()]),
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);
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}
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resolve();
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return;
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}, 300);
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});
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}
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</script>
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