<template>
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<TreeSelect
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v-bind="getAttrs"
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@change="handleChange"
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:field-names="fieldNames"
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:load-data="async ? onLoadData : undefined"
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>
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<template #[item]="data" v-for="item in Object.keys($slots)">
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<slot :name="item" v-bind="data || {}"></slot>
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</template>
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<template #suffixIcon v-if="loading">
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<LoadingOutlined spin />
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</template>
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</TreeSelect>
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</template>
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<script lang="ts" setup>
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import { type Recordable } from '@vben/types';
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import { type PropType, computed, watch, ref, onMounted, unref, useAttrs } from 'vue';
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import { TreeSelect } from 'ant-design-vue';
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import { isArray, isFunction } from '@/utils/is';
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import { get } from 'lodash-es';
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import { propTypes } from '@/utils/propTypes';
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import { LoadingOutlined } from '@ant-design/icons-vue';
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defineOptions({ name: 'ApiTreeSelect' });
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const props = defineProps({
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api: { type: Function as PropType<(arg?: any) => Promise<Recordable<any>>> },
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params: { type: Object },
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immediate: { type: Boolean, default: true },
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async: { type: Boolean, default: false },
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resultField: propTypes.string.def(''),
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labelField: propTypes.string.def('title'),
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valueField: propTypes.string.def('value'),
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childrenField: propTypes.string.def('children'),
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});
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const emit = defineEmits(['options-change', 'change', 'load-data']);
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const attrs = useAttrs();
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const treeData = ref<Recordable<any>[]>([]);
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const isFirstLoaded = ref<Boolean>(false);
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const loading = ref(false);
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const getAttrs = computed(() => {
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return {
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...(props.api ? { treeData: unref(treeData) } : {}),
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...attrs,
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};
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});
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const fieldNames = {
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children: props.childrenField,
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value: props.valueField,
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label: props.labelField,
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};
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function handleChange(...args) {
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emit('change', ...args);
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}
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watch(
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() => props.params,
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() => {
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!unref(isFirstLoaded) && fetch();
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},
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{ deep: true },
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);
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watch(
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() => props.immediate,
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(v) => {
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v && !isFirstLoaded.value && fetch();
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},
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);
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onMounted(() => {
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props.immediate && fetch();
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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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emit('load-data', { treeData, treeNode, resolve });
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});
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}
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async function fetch() {
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const { api } = props;
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if (!api || !isFunction(api) || loading.value) return;
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loading.value = true;
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treeData.value = [];
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let result;
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try {
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result = await api(props.params);
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} catch (e) {
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console.error(e);
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}
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loading.value = false;
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if (!result) return;
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if (!isArray(result)) {
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result = get(result, props.resultField);
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}
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treeData.value = (result as Recordable<any>[]) || [];
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isFirstLoaded.value = true;
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emit('options-change', treeData.value);
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}
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</script>
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