function maxlength_field_widget_form_alter in Maxlength 8

Implements hook_field_widget_form_alter().

File

./maxlength.module, line 131

Limits the number of characters in textfields and textareas and shows the amount of characters left.

Code

function maxlength_field_widget_form_alter(&$element, FormStateInterface $form_state, $context) {
  $thirdPartySettings = $context['widget']
    ->getThirdPartySettings();
  if (!empty($thirdPartySettings['maxlength']['maxlength_js']) || !empty($thirdPartySettings['maxlength']['maxlength_js_summary'])) {
    $element['#maxlength_js'] = TRUE;
    $element['value']['#maxlength_js'] = TRUE;
    if (isset($thirdPartySettings['maxlength']['maxlength_js_summary']) && $thirdPartySettings['maxlength']['maxlength_js_summary'] > 0) {
      $maxlength_js = $thirdPartySettings['maxlength']['maxlength_js_summary'];
      $element['summary']['#attributes']['maxlength'] = $maxlength_js;
      $maxlength_js_label = !empty($thirdPartySettings['maxlength']['maxlength_js_label_summary']) ? $thirdPartySettings['maxlength']['maxlength_js_label_summary'] : t('Content limited to @limit characters, remaining: <strong>@remaining</strong>');
      $element['summary']['#attributes']['maxlength_js_label'][] = $maxlength_js_label;
    }
    if (isset($thirdPartySettings['maxlength']['maxlength_js']) && $thirdPartySettings['maxlength']['maxlength_js'] > 0) {
      $maxlength_js = $thirdPartySettings['maxlength']['maxlength_js'];
      $element['value']['#attributes']['maxlength'] = $maxlength_js;
      $element['#attributes']['maxlength'] = $maxlength_js;
      $maxlength_js_label = !empty($thirdPartySettings['maxlength']['maxlength_js_label']) ? $thirdPartySettings['maxlength']['maxlength_js_label'] : t('Content limited to @limit characters, remaining: <strong>@remaining</strong>');
      $element['#attributes']['maxlength_js_label'][] = $maxlength_js_label;
      $element['value']['#attributes']['maxlength_js_label'][] = $maxlength_js_label;

      // Add maxlength functionality to Link widget link text field.
      if (in_array($context['widget']
        ->getPluginId(), [
        'link_default',
        'linkit',
      ]) && isset($element['title'])) {

        // In the Link module the link text field has a set maxlength of 255
        // characters.
        $maxlength_js = $maxlength_js <= 255 ? $maxlength_js : 255;

        // Set title maxlength attributes.
        $element['title']['#attributes']['class'][] = 'maxlength';
        $element['title']['#attached']['library'][] = 'maxlength/maxlength';
        $element['title']['value']['#attributes']['maxlength'] = $maxlength_js;
        $element['title']['value']['#attributes']['maxlength_js_label'][] = $maxlength_js_label;
        $element['title']['#attributes']['maxlength'] = $maxlength_js;
        $element['title']['#attributes']['maxlength_js_label'][] = $maxlength_js_label;
      }
    }
    if (isset($thirdPartySettings['maxlength']['maxlength_js_enforce']) && $thirdPartySettings['maxlength']['maxlength_js_enforce']) {
      $element['value']['#attributes']['#maxlength_js_enforce'] = TRUE;
      $element['#attributes']['#maxlength_js_enforce'] = TRUE;
    }
    if (isset($thirdPartySettings['maxlength']['maxlength_js_truncate_html']) && $thirdPartySettings['maxlength']['maxlength_js_truncate_html']) {
      $element['value']['#attributes']['#maxlength_js_truncate_html'] = TRUE;
      $element['#attributes']['#maxlength_js_truncate_html'] = TRUE;
    }
  }
}