@selenite/graph-editor/dist/graph-editor/nodes/utils.js

A graph editor for visual programming, based on rete and svelte.

import { structures } from 'rete-structures';
import { Connection, Node } from './Node.svelte';
export function getLeavesFromOutput(node, key) {
    const connections = node.getEditor().getConnections();
    const loopNode = connections
        .filter((connection) => connection.source === node.id && connection.sourceOutput === key)
        .map((connection) => node.getEditor().getNode(connection.target))[0];
    if (!loopNode)
        return [];
    return getNodesToWaitFor(loopNode, structures(node.getEditor()));
}
function getNodesToWaitFor(node, struct) {
    const outExec = node.getNaturalFlow();
    // console.log("outExec", outExec);
    if (outExec === undefined || !(outExec in node.outputs))
        return [node];
    const editor = node.getEditor();
    const nextNodes = editor
        .getConnections()
        .filter((connection) => connection.source === node.id && connection.sourceOutput === outExec)
        .map((connection) => editor.getNode(connection.target));
    if (nextNodes.length === 0)
        return [node];
    const nextNode = nextNodes[0];
    return getNodesToWaitFor(nextNode, struct);
}