Drupal 9 compatibility fixes.

[NightHunterSV]

No description provided.

[froboy]

@NightHunterSV I've tested pieces of this on a site and while there's a lot i haven't tested, there's one change necessary.

digital_signage/modules/openy_digital_signage_playlist/src/Form/OpenYPlaylistItemForm.php

Line 132 in 12d3c53

$duration = $form_state->getValue(['duration', 0, 'value']);

should be

    $duration = $form_state->getValue(['duration', 0, 'duration']);

Otherwise the Edit/Add form for playlist items at admin/digital-signage/playlist/__/edit will not save.

[froboy]

Also

digital_signage/modules/openy_digital_signage_playlist/openy_digital_signage_playlist.module

Line 121 in 12d3c53

$variables['attributes']->addClass($classes);

throws an error: Call to a member function addClass() on array ...

so just above it (line 120) should add:

  if (!($variables['attributes'] instanceof Attribute)) {
    $variables['attributes'] = new Attribute($variables['attributes']);
  }

[AndreyMaximov]

@froboy thanks for your feedback. Those issues have been addressed, the fixes are incorporated in this branch.