Power transforms not properly validated when nested

Daniel, my apologies for not responding more quickly, I missed the notification.

What am I doing wrong?

Hey Daniel,

Thank you for your help. I have some nested paragraphs ( if that matters ), one called "Section Title", with a Fontawesome icon field. I haven't done any alters or anything with that field.

1. set any icon ( fa-table-tennis )
2. leave all other settings as default (Style: Solid, Size: Default, everything else blank )
3. under Power Transforms, set Scale to Shrink or Grow, under Scale Value, set any number ( 1.5 )
4. save the node and the error appears.

I was suspecting it had something to do with the aforementioned lines in src/Plugin/Field/FieldWidget/FontAwesomeIconWidget.php , so I dumped $transformSettings into the error to see what is in there:

 /**
   * Validate the Font Awesome power transforms.
   */
  public static function validatePowerTransforms($element, FormStateInterface $form_state) {
    $value = $element['#value'];
    if (strlen($value) == 0) {
      $form_state->setValueForElement($element, '');
      return;
    }

    // Check the value of the power transform.
    $transformSettings = $form_state->getValues();
    foreach (array_slice($element['#parents'], 0, 5) as $key) {
      $transformSettings = $transformSettings[$key];
    }

    if (!is_numeric($transformSettings['value'])) {
      $form_state->setError($element, t("Here is the full %transformSettings", [
        '%transformSettings' => print_r($transformSettings, TRUE),
      ]));
    }
  }

What this produces is a HUGE array of everything in my Paragraph subform ( title ):

Array ( [subform] => Array ( [field_background_color] => Array ( [0] => Array ( [color] => [opacity] => ) ) [field_border_color] => Array ( [0] => Array ( [color] => [opacity] => ) ) [field_border_width] => Array ( [0] => Array ( [value] => 0 ) ) [field_components] => Array ( [0] => Array ( [subform] => Array ( [field_font_family] => Array ( [0] => Array ( [value] => lobster ) ) [field_icon_color] => Array ( [0] => Array ( [color] => [opacity] => ) ) [field_large_horizontal_align] => Array ( [0] => Array ( [value] => large-align-left ) ) [field_large_padding_bottom] => Array ( [0] => Array ( [value] => 0 ) ) [field_large_padding_left] => Array ( [0] => Array ( [value] => 0 ) ) [field_large_padding_right] => Array ( [0] => Array ( [value] => 0 ) ) [field_large_padding_top] => Array ( [0] => Array ( [value] => 0 ) ) [field_large_text_align] => Array ( [0] => Array ( [value] => large-text-left ) ) [field_medium_horizontal_align] => Array ( [0] => Array ( [value] => medium-align-left ) ) [field_medium_padding_bottom] => Array ( [0] => Array ( [value] => 0 ) ) [field_medium_padding_left] => Array ( [0] => Array ( [value] => 0 ) ) [field_medium_padding_right] => Array ( [0] => Array ( [value] => 0 ) ) [field_medium_padding_top] => Array ( [0] => Array ( [value] => 0 ) ) [field_medium_text_align] => Array ( [0] => Array ( [value] => medium-text-left ) ) [field_small_horizontal_align] => Array ( [0] => Array ( [value] => align-left ) ) [field_small_padding_bottom] => Array ( [0] => Array ( [value] => 0 ) ) [field_small_padding_left] => Array ( [0] => Array ( [value] => 0 ) ) [field_small_padding_right] => Array ( [0] => Array ( [value] => 0 ) ) [field_small_padding_top] => Array ( [0] => Array ( [value] => 0 ) ) [field_small_text_align] => Array ( [0] => Array ( [value] => small-text-left ) ) [field_text_color] => Array ( [0] => Array ( [color] => #0a0a0a [opacity] => 1 ) ) [field_text_shadow] => Array ( [0] => Array ( [value] => none ) ) [field_text_size] => Array ( [0] => Array ( [value] => 3 ) ) [field_title] => Array ( [0] => Array ( [value] => ) ) [field_title_icon] => Array ( [0] => Array ( [icon_name] => table-tennis [settings] => Array ( [style] => fas [size] => [fixed-width] => 0 [border] => 0 [invert] => 0 [animation] => [pull] => [masking] => Array ( [mask] => [style] => fas ) [power_transforms] => Array ( [rotate] => Array ( [value] => ) [flip-h] => Array ( [value] => 0 ) [flip-v] => Array ( [value] => 0 ) [scale] => Array ( [type] => shrink [value] => 1.5 ) [position_y] => Array ( [type] => [value] => ) [position_x] => Array ( [type] => [value] => ) ) ) ) ) [field_title_icon_placement] => inline-before ) [top] => Array ( [links] => Array ( [remove_button] => Drupal\Core\StringTranslation\TranslatableMarkup Object ( [translatedMarkup:protected] => [options:protected] => Array ( ) [stringTranslation:protected] => [string:protected] => Remove [arguments:protected] => Array ( ) ) ) ) [_weight] => 0 ) [add_more] => Array ( [add_more_button_image] => Drupal\Core\StringTranslation\TranslatableMarkup Object ( [translatedMarkup:protected] => [options:protected] => Array ( ) [stringTranslation:protected] => [string:protected] => Add @type [arguments:protected] => Array ( [@type] => Image ) ) [add_more_button_title] => Drupal\Core\StringTranslation\TranslatableMarkup Object ( [translatedMarkup:protected] => [options:protected] => Array ( ) [stringTranslation:protected] => [string:protected] => Add @type [arguments:protected] => Array ( [@type] => Title ) ) [add_more_button_subtitle] => Drupal\Core\StringTranslation\TranslatableMarkup Object ( [translatedMarkup:protected] => [options:protected] => Array ( ) [stringTranslation:protected] => [string:protected] => Add @type [arguments:protected] => Array ( [@type] => Subtitle ) ) [add_more_button_text] => Drupal\Core\StringTranslation\TranslatableMarkup Object ( [translatedMarkup:protected] => [options:protected] => Array ( ) [stringTranslation:protected] => [string:protected] => Add @type [arguments:protected] => Array ( [@type] => Text ) ) [add_more_button_buttons] => Drupal\Core\StringTranslation\TranslatableMarkup Object ( [translatedMarkup:protected] => [options:protected] => Array ( ) [stringTranslation:protected] => [string:protected] => Add @type [arguments:protected] => Array ( [@type] => Buttons ) ) ) ) [field_drop_shadow] => none [field_large_direction] => large-flex-dir-column [field_large_horizontal_align] => large-align-left [field_large_order] => Array ( [0] => Array ( [value] => 0 ) ) [field_large_vertical_align] => large-align-top [field_large_width] => large-auto [field_medium_direction] => medium-flex-dir-column [field_medium_horizontal_align] => medium-align-left [field_medium_order] => Array ( [0] => Array ( [value] => 0 ) ) [field_medium_vertical_align] => medium-align-top [field_medium_width] => medium-auto [field_rounded_border] => Array ( [value] => 0 ) [field_small_direction] => flex-dir-column [field_small_horizontal_align] => align-left [field_small_order] => Array ( [0] => Array ( [value] => 0 ) ) [field_small_vertical_align] => align-top [field_small_width] => small-auto ) [top] => Array ( [links] => Array ( [remove_button] => Drupal\Core\StringTranslation\TranslatableMarkup Object ( [translatedMarkup:protected] => [options:protected] => Array ( ) [stringTranslation:protected] => [string:protected] => Remove [arguments:protected] => Array ( ) ) [collapse_button] => Drupal\Core\StringTranslation\TranslatableMarkup Object ( [translatedMarkup:protected] => [options:protected] => Array ( ) [stringTranslation:protected] => [string:protected] => Collapse [arguments:protected] => Array ( ) ) ) ) [_weight] => 0 )

That is basically all of the fields in my Paragraph, including the icon field 'field_title_icon'.

What I am thinking ( and I may be WAY wrong about this ) is, when the validation function does this:

// Check the value of the power transform.
    $transformSettings = $form_state->getValues();
    foreach (array_slice($element['#parents'], 0, 5) as $key) {
      $transformSettings = $transformSettings[$key];
    }

It's way too greedy, climbing all the way up the Paragraph subform. I am wondering if setting a '#tree' => TRUE on the $element['settings'] ( around line 87 ) or even on each of the settings groups would help prevent $element['#parents'] from going too high in the form?

If I haven't said it before, it was an oversight on my part. YOU ARE THE MAN! Thank you so much!