o365-2.0.3/modules/o365_outlook_calendar/o365_outlook_calendar.module

<?php

/**
 * @file
 * Primary module hooks for o365_contacts module.
 */

use Drupal\Core\Entity\EntityFormInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\StringTranslation\TranslatableMarkup;

/**
 * Implements hook_theme().
 */
function o365_outlook_calendar_theme($existing, $type, $theme, $path) {
  return [
    'o365_calendar_list' => [
      'variables' => [
        'list' => NULL,
        'no_items_text' => NULL,
        'readmore_class' => NULL,
      ],
      'render element' => 'children',
    ],
    'o365_calendar' => [
      'variables' => [
        'fromTime' => NULL,
        'endTime' => NULL,
        'fromDate' => NULL,
        'endDate' => NULL,
        'fromTs' => NULL,
        'endTs' => NULL,
        'attendees' => NULL,
        'imageData' => NULL,
        'subject' => NULL,
        'remainingAttendees' => NULL,
        'webLink' => NULL,
        'onlineMeeting' => NULL,
        'onlineMeeting_class' => NULL,
      ],
      'render element' => 'children',
    ],
  ];
}

/**
 * Implements hook_o365_auth_scopes().
 */
function o365_outlook_calendar_o365_auth_scopes(array &$scopes) {
  $scopes[] = 'Calendars.Read';
  $scopes[] = 'Calendars.Read.Shared';
  $scopes[] = 'Calendars.ReadWrite';
}

/**
 * Implements hook_form_alter().
 */
function o365_outlook_calendar_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  /** @var \Drupal\Core\Config\ImmutableConfig  $moduleConfig */
  $moduleConfig = Drupal::config('o365_outlook_calendar.settings');
  if (!empty($moduleConfig->get('enabled'))) {
    $contentType = $moduleConfig->get('content_type');
    $contentTypeFormId = $moduleConfig->get('content_entity_form_id');

    $checkFormId = [$contentType . '_form'];

    if (!empty($contentTypeFormId)) {
      $checkFormId = explode(',', $contentTypeFormId);
    }

    // Only show our field on new node form and for nodes of the selected
    // type.
    if (in_array($form_id, $checkFormId, TRUE)) {
      // Add out own fields.
      $form['fs_o365_calendar'] = [
        '#type' => 'container',
        '#weight' => 99,
      ];
      $form['fs_o365_calendar']['o365_calendar_save'] = [
        '#type' => 'checkbox',
        '#title' => new TranslatableMarkup('Save this event in my Outlook Calendar'),
      ];
      $form['fs_o365_calendar']['o365_calendar_attendees'] = [
        '#type' => 'textfield',
        '#title' => new TranslatableMarkup('Add a comma seperated list of attendee email addresses'),
        '#states' => [
          'visible' => [
            ':input[name="o365_calendar_save"]' => ['checked' => TRUE],
          ],
        ],
      ];

      // Add a extra submit handler.
      $form['actions']['submit']['#submit'][] = '_o365_outlook_calendar_save_submit';
    }
  }
}

/**
 * Our custom submit handler to save the event in the Outlook Calendar.
 *
 * @param array $form
 *   The form array.
 * @param \Drupal\Core\Form\FormStateInterface $form_state
 *   The form state object.
 */
function _o365_outlook_calendar_save_submit(array $form, FormStateInterface $form_state) {
  if (!empty($form_state->getValue('o365_calendar_save'))) {
    $form_object = $form_state->getFormObject();
    if ($form_object instanceof EntityFormInterface) {
      $entity = $form_object->getEntity();
      if ($entity) {
        /** @var \Drupal\o365_outlook_calendar\OutlookCalendarSaveEventService $eventService */
        $eventService = Drupal::service('o365_outlook_calendar.save_event');
        $eventService->addEvent($entity, $form_state->getValue('o365_calendar_attendees'));
      }
    }
  }
}