public function CustomStylesEditForm::validateForm in BeautyTips 8

Form validation handler.

Parameters

array $form: An associative array containing the structure of the form.

\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.

Overrides FormInterface::validateForm

File

beautytips_manager/src/Form/CustomStylesEditForm.php, line 109

Class

CustomStylesEditForm

Namespace

Drupal\beautytips_manager\Form

Code

public function validateForm(array &$form, FormStateInterface $form_state) {
  $values = $form_state
    ->getValues();
  if (empty($values['name'])) {
    $form_state
      ->setErrorByName('name', t('You must name this custom style.'));
  }
  if (preg_match('/[^a-zA-Z0-9_]/', $values['name'])) {
    $form_state
      ->setErrorByName('name', t('Style name must be alphanumeric or underscores only.'));
  }
  $integer_fields = [
    'strokeWidth' => 'style',
    'cornerRadius' => 'style',
    'spikeGirth' => 'style',
    'spikeLength' => 'style',
    'shadowBlur' => 'style',
  ];
  $pixel_fields = [
    'width' => 'style',
    'padding' => 'style',
    'fontSize' => 'css',
  ];

  // Validate fields that expect a number
  foreach ($integer_fields as $name => $type) {
    $value = $type == 'css' ? $values['custom_styles']['css-styles'][$name] : $values['custom_styles'][$name];
    if ($value) {
      if (!ctype_digit($value)) {
        $error_element = $type == 'css' ? 'custom_styles][css-styles][' . $name : 'custom_styles][' . $name;
        $form_state
          ->setErrorByName($error_element, t('You need to enter an integer value for <em>@name</em>', [
          '@name' => $name,
        ]));
      }
    }
  }

  // Validate fields that expect a number and unit
  foreach ($pixel_fields as $name => $type) {
    $value = $type == 'css' ? $values['custom_styles']['css-styles'][$name] : $values['custom_styles'][$name];
    if ($value) {
      $unit = substr($value, -2, 2);
      $value = str_replace([
        'px',
        ' ',
        'em',
      ], '', $value);
      if (!is_numeric($value) || !$value && $value != 0 || !in_array($unit, [
        'px',
        'em',
      ])) {
        $error_element = $type == 'css' ? 'custom_styles][css-styles][' . $name : 'custom_styles][' . $name;
        $form_state
          ->setErrorByName($error_element, t('You need to enter a numeric value for <em>@name</em>, followed by <em>px</em> or <em>em</em>', [
          '@name' => $name,
        ]));
      }
    }
  }
}