scan_code-8.x-1.0-beta4/scan_code.module

<?php

/**
 * @file
 * Scan code module file.
 */

use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Field\PluginSettingsBase;
use Drupal\Core\Field\WidgetInterface;
use Drupal\Core\Form\FormStateInterface;

/**
 * Implements hook_field_formatter_third_party_settings_form().
 */
function scan_code_field_widget_third_party_settings_form(
  WidgetInterface $plugin,
  FieldDefinitionInterface $field_definition,
  $form_mode,
  array $form,
  FormStateInterface $form_state,
) {

  /** @var \Drupal\scan_code\Services\ScanCodeSettings $scan_code_settings */
  $scan_code_settings = \Drupal::service('scan_code.settings');
  $element = [];

  // If widget type in allowed type list from settings.
  if (in_array($plugin->getPluginId(), $scan_code_settings->getWidgetsArray())) {

    // Scan code group.
    $element['scan_code_group'] = [
      '#type' => 'fieldgroup',
      '#title' => t('Scan Code'),
      '#attributes' => [
        'class' => [
          'scan-code-fieldgroup',
        ],
      ],
    ];

    $scan_code_group = $plugin->getThirdPartySetting('scan_code', 'scan_code_group');
    $element['scan_code_group']['barcode_scan_enabled'] = [
      '#type' => 'checkbox',
      '#title' => t('Enable barcode scanning'),
      '#description' => t('Add button - using camera or another input device for barcode`s scanning.'),
      '#default_value' => ($scan_code_group && $scan_code_group['barcode_scan_enabled'])
        ? $scan_code_group['barcode_scan_enabled']
        : FALSE,
    ];

    $field__name = $field_definition->getName();
    $first_element_array = $scan_code_settings->getDefaultPaternArray();
    $first_element = reset($first_element_array);
    $element['scan_code_group']['scan_code_patterns'] = [
      '#type' => 'checkboxes',
      '#title' => t('Allowed scan patterns'),
      '#default_value' => ($scan_code_group && $scan_code_group['scan_code_patterns'])
        ? $scan_code_group['scan_code_patterns']
        : [$first_element],
      '#required' => TRUE,
      '#options' => $scan_code_settings->getPaternArray(),
      '#states' => [
        'visible' => [
          ":input[name=\"fields[$field__name][settings_edit_form]"
          . "[third_party_settings][scan_code][scan_code_group][barcode_scan_enabled]\"]"
          => ['checked' => TRUE],
        ],
      ],
    ];
  }

  return $element;
}

/**
 * Implements hook_code_field_widget_single_element_form_alter().
 */
function scan_code_field_widget_single_element_form_alter(
  array &$element,
  FormStateInterface $form_state,
  array $context,
) {

  if ($context['widget'] instanceof PluginSettingsBase
  && $settings = $context['widget']->getThirdPartySettings('scan_code')) {

    $module_path = \Drupal::service('extension.list.module')->getPath('scan_code');

    // Add Barcode button.
    $element['scan_code_barcode'] = [
      '#type' => 'html_tag',
      '#tag' => 'img',
      '#weight' => 1,
      '#attributes' => [
        'class' => [
          'scan-code-toggle',
        ],
        'src' => "/$module_path/images/barcode-scan-icon.svg",
      ],
      '#attached' => [
        'library' => [
          'scan_code/quagga',
          'scan_code/webrtc',
          'scan_code/scancode_library',
        ],
      ],
    ];

    if (isset($settings['scan_code_group']['scan_code_patterns'])) {
      $patterns = [];
      foreach ($settings['scan_code_group']['scan_code_patterns'] as $pattern) {
        if ($pattern !== 0) {
          $patterns[] = $pattern;
        }
      }
    }

    // Drupal settings for JS.
    $config = \Drupal::configFactory()->getEditable('scan_code.settings');
    $element['#attached']['drupalSettings']['scan_code'] = [
      'statusOnLoad' => $config->get('status_on_load'),
      'closeAfterScanning' => $config->get('close_after_scanning'),
      'delay' => $config->get('delay'),
      'textBarcodeReading' => $config->get('text_barcode_reading'),
      'patterns' => $patterns,
    ];

  }
}