MOVED TO https://github.com/retejs/stage0-rete-menu-plugin

Rete Stage0 renderer menu plugin

Rete.js plugin

import Stage0MenuPlugin from 'stage0-rete-menu-plugin';

editor.use(MenuPlugin, {
    searchBar: false,
    delay: 100,
    docked: true, // If you want Blender style docked menu
    allocate(component) {
        if (component.name == "Number") {
            return false; // Don't add
        }
        return ["submenu", "subsubmenu"];
    },
    items: { // Hand crafted menu
        "Menu": {
            "Add component": components[1],
            "Fn": () => {
                alert("Fn");
            }
        }
    }
});

You can arbitrarily put a component in a submenu. Examples:

allocate() { return ["Single submenu"] }

allocate(component) { return component.path } // where path is a stack of menu for every component