|
| 1 | +import { ReflectSceneNode } from "@design-sdk/figma"; |
| 2 | +import { visit } from "tree-visit"; |
| 3 | + |
| 4 | +export interface ITreeNode<T = any> { |
| 5 | + id: string; |
| 6 | + name: string; |
| 7 | + children?: ITreeNode[]; |
| 8 | + data?: T; |
| 9 | +} |
| 10 | + |
| 11 | +export interface FlattenedDisplayItemNode<T = any> { |
| 12 | + id: string; |
| 13 | + name: string; |
| 14 | + depth: number; |
| 15 | + parent: string; |
| 16 | + expanded?: boolean | undefined; |
| 17 | + selected?: boolean; |
| 18 | + data?: T; |
| 19 | +} |
| 20 | + |
| 21 | +export const flatten = <T extends ITreeNode>( |
| 22 | + tree: T, |
| 23 | + parent?: string, |
| 24 | + depth: number = 0 |
| 25 | +): FlattenedDisplayItemNode[] => { |
| 26 | + const convert = (node: T, depth: number, parent?: string) => { |
| 27 | + if (!node) { |
| 28 | + return; |
| 29 | + } |
| 30 | + |
| 31 | + const result: FlattenedDisplayItemNode = { |
| 32 | + ...node, |
| 33 | + depth: depth, |
| 34 | + parent, |
| 35 | + }; |
| 36 | + |
| 37 | + return result; |
| 38 | + }; |
| 39 | + |
| 40 | + const final = []; |
| 41 | + final.push(convert(tree, depth, parent)); |
| 42 | + for (const child of tree?.children || []) { |
| 43 | + final.push(...flatten(child, tree.id, depth + 1)); |
| 44 | + } |
| 45 | + return final; |
| 46 | +}; |
| 47 | + |
| 48 | +export function flattenNodeTree( |
| 49 | + root: ReflectSceneNode, |
| 50 | + selections: string[], |
| 51 | + expands: string[] |
| 52 | +): FlattenedDisplayItemNode<ReflectSceneNode>[] { |
| 53 | + const flattened: FlattenedDisplayItemNode<ReflectSceneNode>[] = []; |
| 54 | + |
| 55 | + visit<ReflectSceneNode>(root, { |
| 56 | + getChildren: (layer) => { |
| 57 | + if (expands.includes(layer.id)) { |
| 58 | + return layer.children; |
| 59 | + } |
| 60 | + return []; |
| 61 | + }, |
| 62 | + |
| 63 | + onEnter(layer, indexPath) { |
| 64 | + flattened.push({ |
| 65 | + id: layer.id, |
| 66 | + name: layer.name, |
| 67 | + parent: layer.parent?.id, |
| 68 | + depth: indexPath.length - 1, |
| 69 | + expanded: |
| 70 | + layer.children.length <= 0 |
| 71 | + ? undefined |
| 72 | + : expands.includes(layer.id) |
| 73 | + ? true |
| 74 | + : false, |
| 75 | + selected: selections.includes(layer.id), |
| 76 | + data: layer, |
| 77 | + }); |
| 78 | + }, |
| 79 | + }); |
| 80 | + |
| 81 | + return flattened; |
| 82 | +} |
0 commit comments