Function DOMDriver

dom/src/makeDOMDriver.ts:58–89

(vnode$: Stream<VNode>, name = 'DOM')

  makeDOMDriverInputGuard(modules);

  function DOMDriver(vnode$: Stream<VNode>, name = 'DOM'): DOMSource {
    domDriverInputGuard(vnode$);
    const sanitation$ = xs.create<null>();
    const rootElement$ = xs.merge(vnode$.endWhen(sanitation$), sanitation$)
      .map(vnode => vnodeWrapper.call(vnode))
      .fold(patch, toVNode(rootElement))
      .drop(1)
      .map(unwrapElementFromVNode)
      .compose(dropCompletion) // don't complete this stream
      .startWith(rootElement);

    // Start the snabbdom patching, over time
    const listener = {error: reportSnabbdomError};
    if (document.readyState === 'loading') {
      document.addEventListener('readystatechange', () => {
        if (document.readyState === 'interactive') {
          rootElement$.addListener(listener);
        }
      });
    } else {
      rootElement$.addListener(listener);
    }

    return new MainDOMSource(
      rootElement$,
      sanitation$,
      [],
      isolateModule,
      delegators,
      name,
    );
  };

  return DOMDriver;
}