125 lines
2.8 KiB
Plaintext
125 lines
2.8 KiB
Plaintext
import { CASCADER_TREE_ITEM, CASCADER_PATH_MENU_TYPE } from "../../interface.uts"
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/**
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* 当前树有多少个被选中了。
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*/
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export function getTreeSelectedNum(item : CASCADER_TREE_ITEM[], target : Set<string>) : number {
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let inx = 0;
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function jshz(tree : CASCADER_TREE_ITEM[]) {
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for (let i = 0; i < tree.length; i++) {
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let item = tree[i]
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if (item.children.length > 0) {
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jshz(item.children)
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} else if (target.has(item.id)) {
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inx += 1
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}
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}
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}
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jshz(item)
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return inx;
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}
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/**
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* 根据目标节点，过滤掉父节点。
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* @param item
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* @param target
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*/
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export function filterParentNode(item : CASCADER_TREE_ITEM[], target : Set<string>) : string[] {
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function jshz(tree : CASCADER_TREE_ITEM[]) : string[] {
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let arr = [] as string[]
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for (let i = 0; i < tree.length; i++) {
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let item = tree[i]
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if (item.children.length > 0) {
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arr = arr.concat(jshz(item.children))
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} else if (target.has(item.id)) {
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arr.push(item.id)
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}
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}
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return arr;
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}
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return jshz(item)
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}
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/**
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* 是否是父节点
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* @param item
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* @param target
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*/
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export function isParent(item : CASCADER_TREE_ITEM[], target : string) : boolean {
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let parent = false;
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function jshz(tree : CASCADER_TREE_ITEM[]) {
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if (parent) {
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return;
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}
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for (let i = 0; i < tree.length; i++) {
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let item = tree[i]
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if (item.id == target && item.children.length > 0) {
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parent = true;
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} else if (item.id != target && item.children.length > 0) {
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jshz(item.children)
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}
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}
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}
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jshz(item)
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return parent
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}
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/** 通过节点获取当前节点的索引路径和ids数组 */
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export function getIndexPathAndIds(tree : CASCADER_TREE_ITEM[], targetId : string) : string[] {
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const path : string[] = [];
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function dfs(node : CASCADER_TREE_ITEM[]) : boolean {
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for (let i = 0; i < node.length; i++) {
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let item = node[i];
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path.push(item.id);
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if (item.id === targetId) {
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return true;
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}
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if (dfs(item.children)) {
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return true;
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}
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path.pop();
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}
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return false;
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}
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if (dfs(tree)) {
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return path;
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} else {
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return [] as string[];
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}
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}
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/** 通过节点获取当前节点的索引路径和ids数组 */
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export function getTreeNodesPath(tree : CASCADER_TREE_ITEM[], targetId : string) : CASCADER_PATH_MENU_TYPE|null {
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const path : string[] = [];
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const indexPaths:number[] = [];
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const pathData:CASCADER_TREE_ITEM[] = [];
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function dfs(node : CASCADER_TREE_ITEM[]) : boolean {
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for (let i = 0; i < node.length; i++) {
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let item = node[i];
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path.push(item.id);
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indexPaths.push(i)
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pathData.push(item)
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if (item.id === targetId) {
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return true;
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}
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if (dfs(item.children)) {
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return true;
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}
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path.pop();
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indexPaths.pop();
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pathData.pop();
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}
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return false;
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}
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if (dfs(tree)) {
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return {
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indexPath:indexPaths,
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ids:path,
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pathData
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} as CASCADER_PATH_MENU_TYPE;
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}
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return null
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} |