ts-mind/src/core/format/node_tree.ts

A web-mind lib write in typescript.Sound apis and friendly plug-in mechanism in this lib.

import { __name__, __authores__, __version__ } from "../../util/constants";
import { TSM_mind } from "../mind";
import { TSMindDirectionMap } from "..";
import { TSM_node } from "../node";

export const node_tree = {
	example: {
		meta: {
			name: __name__,
			author: __authores__,
			version: __version__
		},
		format: "node_tree",
		data: { id: "root", topic: "jsMind Example" } as ITSMNodeDataItem
	},
	get_mind(source: any) {
		const df = node_tree;
		const mind = new TSM_mind();
		mind.name = source.meta.name;
		mind.author = source.meta.author;
		mind.version = source.meta.version;
		df._parse(mind, source.data);
		return mind;
	},
	get_data(mind: TSM_mind) {
		const df = node_tree;
		return {
			meta: {
				name: mind.name,
				author: mind.author,
				version: mind.version
			},
			format: "node_tree",
			data: df._buildnode(mind.root)
		};
	},

	_parse(mind: TSM_mind, node_root: any) {
		const df = node_tree;
		const data = df._extract_data(node_root);
		mind.set_root(node_root.id, node_root.topic, data);
		if ("children" in node_root) {
			const children = node_root.children;
			for (const child of children) {
				df._extract_subnode(mind, mind.root, child);
			}
		}
	},

	_extract_data(node_json: JSON) {
		const data = {};
		for (const k in node_json) {
			if (
				k === "id" ||
				k === "topic" ||
				k === "children" ||
				k === "direction" ||
				k === "expanded"
			) {
				continue;
			}
			data[k] = node_json[k];
		}
		return data;
	},

	_extract_subnode(mind: TSM_mind, node_parent: any, node_json: any) {
		const df = node_tree;
		const data = df._extract_data(node_json);
		let dir: ITSMDirectionValue = TSMindDirectionMap.right;
		if (node_parent.isroot) {
			dir = TSMindDirectionMap[node_json.direction];
		}
		const node = mind.add_node(
			node_parent,
			node_json.id,
			node_json.topic,
			data,
			undefined,
			dir,
			node_json.expanded
		);
		if ("children" in node_json) {
			const children = node_json.children;
			for (const child of children) {
				df._extract_subnode(mind, node, child);
			}
		}
	},

	_buildnode(node: any) {
		const df = node_tree;
		if (!(node instanceof TSM_node)) {
			return;
		}
		const o: any = {
			id: node.id,
			topic: node.topic,
			expanded: node.expanded
		};
		if (!!node.parent && node.parent!.isroot) {
			o.direction =
				node.direction === TSMindDirectionMap.left ? "left" : "right";
		}
		if (node.data != null) {
			const node_data = node.data;
			for (const k in node_data) {
				if (k) {
					o[k] = node_data[k];
				}
			}
		}
		const children = node.children;
		if (children.length > 0) {
			o.children = [];
			for (const child of children) {
				o.children.push(df._buildnode(child));
			}
		}
		return o;
	}
};