addtocalendar-8.x-3.x-dev/src/AddToCalendarApiWidget.php

<?php

namespace Drupal\addtocalendar;

use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\Core\Datetime\DrupalDateTime;
use Drupal\Core\Render\RendererInterface;

/**
 * Class AddToCalendarApiWidget.
 */
class AddToCalendarApiWidget {

  /**
   * Declare various setting variables for add to calendar api widget.
   *
   * @var string
   */

  /**
   * The config factory service.
   *
   * @var \Drupal\Core\Config\ConfigFactoryInterface
   */
  protected $configFactory;

  /**
   * The renderer service.
   *
   * @var \Drupal\Core\Render\RendererInterface
   */
  protected $renderer;

  /**
   * Style.
   *
   * @var string
   */
  protected $atcStyle;

  /**
   * DisplayText.
   *
   * @var string
   */
  protected $atcDisplayText;

  /**
   * Title.
   *
   * @var string
   */
  protected $atcTitle;

  /**
   * Description.
   *
   * @var string
   */
  protected $atcDescription;

  /**
   * Location.
   *
   * @var string
   */
  protected $atcLocation;

  /**
   * Organizer.
   *
   * @var string
   */
  protected $atcOrganizer;

  /**
   * Orangizer Email.
   *
   * @var string
   */
  protected $atcOrganizerEmail;

  /**
   * Start Date.
   *
   * @var string
   */
  protected $atcDateStart;

  /**
   * End Date.
   *
   * @var string
   */
  protected $atcDateEnd;

  /**
   * Privacy.
   *
   * @var string
   */
  protected $atcPrivacy;

  /**
   * DataSecure.
   *
   * @var string
   */
  protected $atcDataSecure;

  /**
   * Timezone.
   *
   * @var string
   */
  protected $timeZone;

  /**
   * Hold the various calendars usable in the widget.
   *
   * @var array
   */
  protected $atcDataCalendars = [];

  /**
   * Constructs a new AddToCalendarApiWidget object.
   */
  public function __construct(ConfigFactoryInterface $config_factory, RendererInterface $renderer = NULL) {

    $this->atcStyle = 'blue';
    $this->atcDisplayText = 'Add to calendar';
    $this->atcTitle = 'Some event title';
    $this->atcDescription = 'Some event description';
    $this->atcLocation = 'Some event location';
    // Fetching site name and site email id.
    $this->configFactory = $config_factory;
    $config = $this->configFactory->getEditable('system.site');
    $site_name = $config->get('name');
    $site_mail = $config->get('mail');

    $this->atcOrganizer = $site_name;
    $this->atcOrganizerEmail = $site_mail;
    $this->atcDateStart = 'now';
    $this->atcDateEnd = 'now';
    $this->atcPrivacy = 'public';
    $this->atcDataSecure = 'auto';
    $data_calendars = ['iCalendar',
      'Google Calendar',
      'Outlook',
      'Outlook Online',
      'Yahoo! Calendar',
    ];
    $this->atcDataCalendars = $data_calendars;
    $this->timeZone = date_default_timezone_get();

    if (is_null($renderer)) {
      @trigger_error('Calling AddToCalendarApiWidget::_construct() without the $renderer argument is deprecated and the argument will be required in a future release.', E_USER_DEPRECATED);
      $this->renderer = \Drupal::service('renderer');
    }
    else {
      $this->renderer = $renderer;
    }
  }

  /**
   * Use this function to set values for the widget.
   */
  public function setWidgetValues($config_values = []) {
    foreach ($config_values as $key => $value) {
      $this->$key = $value;
    }
  }

  /**
   * Use this function to get a particular value from this widget.
   */
  public function getWidgetValue($config_value) {
    return $this->$config_value;
  }

  /**
   * Constructs and returns a renderable array widget for add to calendar.
   */
  public function generateWidget() {

    // Start building the renderable array.
    $build['addtocalendar'] = [];
    $display_text = t('@text', ['@text' => $this->atcDisplayText]);
    $build['addtocalendar_button'] = [
      '#type' => 'html_tag',
      '#tag' => 'a',
      '#value' => $display_text->__toString(),
      '#attributes' => [
        'class' => 'atcb-link',
      ],
    ];
    $timeZone = $this->timeZone;

    // Assuming date and end_date is provide in UTC format.
    $date = new DrupalDateTime(preg_replace('/T/', ' ', $this->atcDateStart), 'UTC');
    $end_date = new DrupalDateTime(preg_replace('/T/', ' ', $this->atcDateEnd), 'UTC');

    $info = [
      'atc_date_start' => $date->format('Y-m-d H:i:s', ['timezone' => $timeZone]),
      'atc_date_end' => $end_date->format('Y-m-d H:i:s', ['timezone' => $timeZone]),
      'atc_title' => $this->atcTitle,
      'atc_description' => $this->atcDescription,
      'atc_location' => $this->atcLocation,
      'atc_organizer' => $this->atcOrganizer,
      'atc_organizer_email' => $this->atcOrganizerEmail,
      'atc_timezone' => $timeZone,
      'atc_privacy' => $this->atcPrivacy,
    ];

    foreach ($info as $key => $value) {
      $build['addtocalendar'][$key] = [
        '#type' => 'html_tag',
        '#tag' => 'var',
        '#value' => $value,
        '#attributes' => [
          'class' => $key,
        ],
      ];
    }

    $build['addtocalendar'] = [
      '#type' => 'html_tag',
      '#tag' => 'span',
      '#value' => $this->renderer->render($build['addtocalendar_button']) . '<var class="atc_event">' . $this->renderer->render($build['addtocalendar']) . '</var>',
      '#attributes' => [
        'class' => [
          'addtocalendar',
        ],
      ],
    ];
    // Add calendars.
    $calendars = implode(', ', $this->atcDataCalendars);
    $build['addtocalendar']['#attributes']['data-calendars'] = $calendars;

    $build['addtocalendar']['#attributes']['data-secure'] = $this->atcDataSecure;

    // Add styling.
    switch ($this->atcStyle) {
      case 'blue':
        $style['class'] = 'atc-style-blue';
        $style['library'] = 'addtocalendar/blue';
        break;

      case 'glow_orange':
        $style['class'] = 'atc-style-glow-orange';
        $style['library'] = 'addtocalendar/glow_orange';
        break;
    }

    if (!empty($style)) {
      $build['addtocalendar']['#attributes']['class'][] = $style['class'];
      $build['#attached']['library'][] = $style['library'];
    }
    $build['#attached']['library'][] = 'addtocalendar/base';
    return $build;
  }

}