DefinitelyTyped/types/elm/index.d.ts

// Type definitions for Elm 0.12
// Project: http://elm-lang.org
// Definitions by: Dénes Harmath <https://github.com/thSoft>
// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped

declare var Elm: Elm;

interface Elm {
	embed<P>(elmModule: ElmModule<P>, element: Node, initialValues?: Object): ElmComponent<P>;
	fullscreen<P>(elmModule: ElmModule<P>, initialValues?: Object): ElmComponent<P>;
	worker<P>(elmModule: ElmModule<P>, initialValues?: Object): ElmComponent<P>;
}

interface ElmModule<P> {
}

interface ElmComponent<P> {
	ports: P;
}

interface PortToElm<V> {
	send(value: V): void;
}

interface PortFromElm<V> {
	subscribe(handler: (value: V) => void): void;
	unsubscribe(handler: (value: V) => void): void;
}