Overlays and modals

WORK IN PROGRESS: This is just a stub for now

Django Bridge supports opening any URL in an overlay/modal using the openOverlay function.

For example:

<button
  onClick={() =>
    openOverlay("/posts/add/", (content) => (
      <ModalWindow>
        {content}
      </ModalWindow>
    ), {
      onClose: () => {
        // Refresh props so new post pops up in listing
        refreshProps();
      }
    })
  }
>
  Add Post
</button>

This will fetch the view at /posts/add/ and render the result in an overlay. The overlay UI is provided by the <ModalWindow> component defined by the application.