58 lines
1.7 KiB
JavaScript
58 lines
1.7 KiB
JavaScript
import _extends from "@babel/runtime/helpers/esm/extends";
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import { shallowRef, watch, toRaw } from 'vue';
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import { convertChildrenToData } from '../utils/legacyUtil';
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function parseSimpleTreeData(treeData, _ref) {
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let {
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id,
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pId,
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rootPId
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} = _ref;
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const keyNodes = {};
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const rootNodeList = [];
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// Fill in the map
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const nodeList = treeData.map(node => {
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const clone = _extends({}, node);
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const key = clone[id];
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keyNodes[key] = clone;
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clone.key = clone.key || key;
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return clone;
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});
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// Connect tree
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nodeList.forEach(node => {
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const parentKey = node[pId];
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const parent = keyNodes[parentKey];
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// Fill parent
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if (parent) {
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parent.children = parent.children || [];
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parent.children.push(node);
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}
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// Fill root tree node
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if (parentKey === rootPId || !parent && rootPId === null) {
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rootNodeList.push(node);
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}
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});
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return rootNodeList;
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}
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/**
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* Convert `treeData` or `children` into formatted `treeData`.
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* Will not re-calculate if `treeData` or `children` not change.
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*/
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export default function useTreeData(treeData, children, simpleMode) {
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const mergedTreeData = shallowRef();
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watch([simpleMode, treeData, children], () => {
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const simpleModeValue = simpleMode.value;
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if (treeData.value) {
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mergedTreeData.value = simpleMode.value ? parseSimpleTreeData(toRaw(treeData.value), _extends({
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id: 'id',
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pId: 'pId',
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rootPId: null
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}, simpleModeValue !== true ? simpleModeValue : {})) : toRaw(treeData.value).slice();
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} else {
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mergedTreeData.value = convertChildrenToData(toRaw(children.value));
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}
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}, {
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immediate: true,
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deep: true
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});
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return mergedTreeData;
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} |