Allow easily creating dialog links

prashant.c → made their first commit to this issue’s fork.

prashant.c → changed the visibility of the branch 2944554-allow-easily-creating to hidden.

Have just created an MR from the patch submitted in #18 → . Going to test these methods locally first.

1. Type "modal" worked fine.
2. Fixed issues for type "off_canvas"
3. Handled for the "off_canvas_top"

To quickly test, return the following code in a block or controller:

Open link in a "modal" window:

    $url = Url::fromRoute('entity.node.canonical', ['node' => 1], ['absolute' => TRUE]);
    $link = Link::fromTextAndUrl($this->t('Read more'), $url);
    $link->openInRenderer('modal');
  return [
      'read_more' => $link->toRenderable(),
  ];

Open link in an "off-canvas" window:

    $link->openInRenderer('off_canvas');

Open link in an "off_canvas_top" window:

    $link->openInRenderer('off_canvas', ['position' => 'top']);

A review of the current code is needed before moving forward with this. After that, we can go ahead with writing tests for this.