we_megamenu.module

<?php

/**
 * @file
 * Drupal 8 Mega Menu Module.
 */

use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Block\BlockPluginInterface;
use Drupal\we_megamenu\WeMegaMenuBuilder;
use Drupal\Core\Template\Attribute;
use Drupal\Core\Url;

/**
 * Implements hook_theme().
 */
function we_megamenu_theme($existing, $type, $theme, $path) {
  $items['we_megamenu_backend'] = [
    'variables' => [
      'menu_name' => NULL,
      'content' => NULL,
      'section' => 'admin',
      'blocks' => NULL,
      'block_theme' => NULL,
      'data_config' => NULL,
      'trail' => NULL,
    ],
  ];

  $items['we_megamenu_frontend'] = [
    'variables' => [
      'menu_name' => NULL,
      'content' => NULL,
      'section' => '',
      'blocks' => NULL,
      'block_theme' => NULL,
      'data_config' => NULL,
      'trail' => NULL,
    ],
  ];

  $items['we_megamenu_ul'] = [
    'variables' => [
      'menu_name' => NULL,
      'content' => NULL,
      'section' => 'frontend',
      'items' => NULL,
      'subtree' => NULL,
      'data_config' => NULL,
      'block_theme' => NULL,
      'trail' => NULL,
    ],
  ];

  $items['we_megamenu_li'] = [
    'variables' => [
      'menu_name' => NULL,
      'content' => NULL,
      'section' => 'frontend',
      'title' => NULL,
      'subtree' => NULL,
      'items' => NULL,
      'item' => NULL,
      'data_config' => NULL,
      'block_theme' => NULL,
      'trail' => NULL,
    ],
  ];

  $items['we_megamenu_submenu'] = [
    'variables' => [
      'menu_name' => NULL,
      'content' => NULL,
      'section' => 'frontend',
      'title' => NULL,
      'subtree' => NULL,
      'items' => NULL,
      'data_config' => NULL,
      'item_config' => NULL,
      'block_theme' => NULL,
      'trail' => NULL,
    ],
  ];

  $items['we_megamenu_block'] = [
    'variables' => [
      'menu_name' => NULL,
      'content' => NULL,
      'section' => 'frontend',
      'title' => NULL,
      'subtree' => NULL,
      'items' => NULL,
      'data_config' => NULL,
      'item_config' => NULL,
      'block_content' => NULL,
      'block_theme' => NULL,
      'trail' => NULL,
    ],
  ];

  $items['we_megamenu_row'] = [
    'variables' => [
      'menu_name' => NULL,
      'content' => NULL,
      'section' => 'frontend',
      'title' => NULL,
      'subtree' => NULL,
      'items' => NULL,
      'data_config' => NULL,
      'item_config' => NULL,
      'block_theme' => NULL,
      'trail' => NULL,
    ],
  ];

  $items['we_megamenu_col'] = [
    'variables' => [
      'menu_name' => NULL,
      'content' => NULL,
      'section' => 'frontend',
      'title' => NULL,
      'subtree' => NULL,
      'items' => NULL,
      'data_config' => NULL,
      'item_config' => NULL,
      'block_theme' => NULL,
      'trail' => NULL,
    ],
  ];

  $items['we_megamenu_subul'] = [
    'variables' => [
      'menu_name' => NULL,
      'content' => NULL,
      'section' => 'frontend',
      'items' => NULL,
      'subtree' => NULL,
      'data_config' => NULL,
      'item_config' => NULL,
      'block_theme' => NULL,
      'trail' => NULL,
    ],
  ];
  return $items;
}


/**
 * @param array $vars
 *   Variables are declared in theme.
 */
function template_preprocess_we_megamenu_backend(array &$vars) {
  $menu_name = $vars['menu_name'];
  $block_theme = $vars['block_theme'];
  $data_config = WeMegaMenuBuilder::loadConfig($menu_name, $block_theme);

  $block_config = isset($data_config->block_config) ? $data_config->block_config : [];
  $menu_items = WeMegaMenuBuilder::getMenuTreeOrder($menu_name);
  $trail = WeMegaMenuBuilder::buildPageTrail($menu_items);

  $vars['content'] = [
    '#theme' => 'we_megamenu_ul',
    '#items' => $menu_items,
    '#data_config' => $data_config ? $data_config : NULL,
    '#section' => $vars['section'],
    '#block_theme' => $vars['block_theme'],
    '#menu_name' => $vars['menu_name'],
    '#trail' => $trail,
  ];

  $vars['attributes'] = new Attribute();
  $vars['attributes']['class'] = [];
  $vars['attributes']['class'][] = $menu_name;
  $vars['attributes']['class'][] = 'navbar';
  $vars['attributes']['class'][] = 'navbar-default';
  $vars['attributes']['class'][] = 'navbar-we-mega-menu';
  $vars['attributes']['class'][] = $vars['section'];
  $vars['attributes']['class'][] = isset($data_config->block_config->{'auto-mobile-collapse'}) == 1 ? 'mobile-collapse' : '';
  $vars['attributes']['data-menu-name'] = $menu_name;
  $vars['attributes']['data-block-theme'] = $block_theme;
  $vars['attributes']['data-style'] = isset($data_config->block_config->style) ? $data_config->block_config->style : 'Default';
  $vars['attributes']['data-animation'] = isset($data_config->block_config->animation) ? $data_config->block_config->animation : 'None';
  $vars['attributes']['data-delay'] = isset($data_config->block_config->delay) ? $data_config->block_config->delay : '';
  $vars['attributes']['data-duration'] = isset($data_config->block_config->duration) ? $data_config->block_config->duration : '';
  $vars['attributes']['data-autoarrow'] = isset($data_config->block_config->{'auto-arrow'}) ? $data_config->block_config->{'auto-arrow'} : '';
  $vars['attributes']['data-alwayshowsubmenu'] = isset($data_config->block_config->{'always-show-submenu'}) ? $data_config->block_config->{'always-show-submenu'} : '';
  $vars['attributes']['data-action'] = isset($data_config->block_config->action) ? $data_config->block_config->action : 'hover';
  $vars['attributes']['data-mobile-collapse'] = isset($data_config->block_config->{'auto-mobile-collapse'}) ? $data_config->block_config->{'auto-mobile-collapse'} : 0;
}

/**
 * Prepare variables for we_megamenu_frontend.
 *
 * @param array $vars
 *   Variables are declared in theme.
 */
function template_preprocess_we_megamenu_frontend(&$vars) {
  $menu_name = $vars['menu_name'];
  $block_theme = $vars['block_theme'];
  $data_config = WeMegaMenuBuilder::loadConfig($menu_name, $block_theme);
  $menu_items = WeMegaMenuBuilder::getMenuTreeOrder($menu_name);
  $trail = WeMegaMenuBuilder::buildPageTrail($menu_items);
  $vars['content'] = [
    '#theme' => 'we_megamenu_ul',
    '#items' => $menu_items,
    '#data_config' => $data_config ? $data_config : NULL,
    '#section' => $vars['section'],
    '#block_theme' => $vars['block_theme'],
    '#menu_name' => $vars['menu_name'],
    '#trail' => $trail,
  ];

  $vars['attributes'] = new Attribute();
  $vars['attributes']['class'] = [];
  $vars['attributes']['class'][] = $menu_name;
  $vars['attributes']['class'][] = 'navbar';
  $vars['attributes']['class'][] = 'navbar-default';
  $vars['attributes']['class'][] = 'navbar-we-mega-menu';
  $vars['attributes']['class'][] = $vars['section'];
  $vars['attributes']['class'][] = isset($data_config->block_config->{'auto-mobile-collapse'}) == 1 ? 'mobile-collapse' : '';
  $vars['attributes']['data-menu-name'] = $menu_name;
  $vars['attributes']['data-block-theme'] = $block_theme;
  $vars['attributes']['data-style'] = isset($data_config->block_config->style) ? $data_config->block_config->style : 'Default';
  $vars['attributes']['data-animation'] = isset($data_config->block_config->animation) ? $data_config->block_config->animation : 'None';
  $vars['attributes']['data-delay'] = isset($data_config->block_config->delay) ? $data_config->block_config->delay : '';
  $vars['attributes']['data-duration'] = isset($data_config->block_config->duration) ? $data_config->block_config->duration : '';
  $vars['attributes']['data-autoarrow'] = isset($data_config->block_config->{'auto-arrow'}) ? $data_config->block_config->{'auto-arrow'} : '';
  $vars['attributes']['data-alwayshowsubmenu'] = isset($data_config->block_config->{'always-show-submenu'}) ? $data_config->block_config->{'always-show-submenu'} : '';
  $vars['attributes']['data-action'] = isset($data_config->block_config->action) ? $data_config->block_config->action : 'hover';
  $vars['attributes']['data-mobile-collapse'] = isset($data_config->block_config->{'auto-mobile-collapse'}) ? $data_config->block_config->{'auto-mobile-collapse'} : 0;
  $vars['attributes']['class'][] = $vars['attributes']['data-action'] == 'clicked' ? 'click-action' : 'hover-action';
}

/**
 * Prepare variables for we_megamenu_ul.
 *
 * @param array $vars
 *   Variables are declared in theme.
 */
function template_preprocess_we_megamenu_ul(array &$vars) {
  $data_config = $vars['data_config'];
  foreach ($vars['items'] as $key_li => $li) {

    $vars['href'] = '';
    if ($li['url'] == '<front>') {
      $vars['attributes']['data-id'] = 'home';
      $vars['href'] = Drupal::url('<front>');
    }
    else {
      $vars['attributes']['data-id'] = !empty($li['derivativeId']) ? $li['derivativeId'] : $li['url'];
      $current_user = \Drupal::currentUser();
      if (WeMegaMenuBuilder::routeExists($li['url'])) {
        $vars['href'] = Drupal::url($li['url']);
      }
      else {
        $vars['href'] = $li['url'];
      }
    }

    if (!\Drupal\Component\Utility\UrlHelper::isExternal($vars['href'])) {
      if (Url::fromUri('internal:' . $vars['href'])->access() == FALSE) continue;
    }

    if (strpos($vars['href'], 'user/logout') !== FALSE && $current_user->id() == 0 && $vars['section'] != 'admin') {
      continue;
    }

    if (strpos($vars['href'], 'user/login') !== FALSE && $current_user->id() != 0 && $vars['section'] != 'admin') {
      continue; 
    }

    $vars['content'][] = [
      '#theme' => ['we_megamenu_li'],
      '#title' => $li['title'],
      '#item' => $li,
      '#subtree' => $li['subtree'],
      '#data_config' => $vars['data_config'],
      '#section' => $vars['section'],
      '#block_theme' => $vars['block_theme'],
      '#menu_name' => $vars['menu_name'],
      '#trail' => $vars['trail'],
    ];
  }

  $vars['attributes'] = new Attribute();
  $vars['attributes']['class'] = [];
  $vars['attributes']['class'][] = 'we-mega-menu-ul';
  $vars['attributes']['class'][] = 'nav';
  $vars['attributes']['class'][] = 'nav-tabs';
}

/**
 * Prepare variables for we_megamenu_li.
 *
 * @param array $vars
 *   Variables are declared in theme.
 */
function template_preprocess_we_megamenu_li(&$vars) {
  $menu_name = $vars['menu_name'];
  $block_theme = $vars['block_theme'];
  $data_config = WeMegaMenuBuilder::loadConfig($menu_name, $block_theme);
  $menu_config = isset($data_config->menu_config) ? $data_config->menu_config : [];
  
  $vars['attributes'] = new Attribute();
  $vars['attributes']['class'] = [];
  $vars['attributes']['class'][] = 'we-mega-menu-li';
  $vars['attributes']['class'][] = count($vars['subtree']) ? 'dropdown-menu' : '';
  $vars['attributes']['data-level'] = $vars['item']['level'];
  $vars['attributes']['data-element-type'] = 'we-mega-menu-li';
  $vars['attributes']['description'] = isset($vars['item']['description']) ? $vars['item']['description'] : '';
  $vars['href'] = '';
  if ($vars['item']['url'] == '<front>') {
    $vars['attributes']['data-id'] = 'home';
    $vars['href'] = Drupal::url('<front>');
  }
  else {
    $vars['attributes']['data-id'] = !empty($vars['item']['derivativeId']) ? $vars['item']['derivativeId'] : $vars['item']['url'];
    $vars['href'] = $vars['item']['url'];
  }

  $vars['attributes']['data-submenu'] = 0;
  $vars['attributes']['hide-sub-when-collapse'] = 0;
  if (isset($menu_config->{$vars['attributes']['data-id']})) {
    $item_config = $menu_config->{$vars['attributes']['data-id']};
    $vars['attributes']['class'][] = !empty($item_config->item_config->group) ? 'we-mega-menu-group' : '';
    $vars['attributes']['class'][] = !empty($item_config->item_config->class) ? $item_config->item_config->class : '';
    $vars['attributes']['class'][] = !empty($item_config->item_config->{'hide_sub_when_collapse'}) ? 'sub-hidden-collapse' : '';
    $vars['attributes']['class'][] = !empty($item_config->item_config->{'data-alignsub'}) ? $item_config->item_config->{'data-alignsub'} : '';
    $vars['attributes']['data-group'] = !empty($item_config->item_config->group) ? $item_config->item_config->group : 0;
    $vars['attributes']['data-class'] = !empty($item_config->item_config->class) ? $item_config->item_config->class : '';
    $vars['attributes']['data-icon'] = !empty($item_config->item_config->{'data-icon'}) ? $item_config->item_config->{'data-icon'} : '';
    $vars['attributes']['data-caption'] = !empty($item_config->item_config->{'data-caption'}) ? $item_config->item_config->{'data-caption'} : '';
    $vars['attributes']['hide-sub-when-collapse'] = !empty($item_config->item_config->{'hide_sub_when_collapse'}) ? $item_config->item_config->{'hide_sub_when_collapse'} : '';
    $vars['attributes']['data-alignsub'] = !empty($item_config->item_config->{'data-alignsub'}) ? $item_config->item_config->{'data-alignsub'} : '';
    $vars['attributes']['data-target'] = !empty($item_config->item_config->{'data-target'}) ? $item_config->item_config->{'data-target'} : '';
  }

  $trail = $vars['trail'];
  $plugin_id = $vars['item']['plugin_id'];
  if (isset($trail[$plugin_id])) {
    $vars['attributes']['class'][] = 'active';
    $vars['attributes']['class'][] = 'active-trail';
    $vars['link']['attributes']['class'][] = 'active-trail';
  }
  
  if ($vars['subtree']) {
    $vars['content'] = [
      '#theme' => 'we_megamenu_submenu',
      '#items' => $vars['subtree'],
      '#item_config' => isset($menu_config->{$vars['attributes']['data-id']}) ? $menu_config->{$vars['attributes']['data-id']} : [],
      '#section' => $vars['section'],
      '#block_theme' => $vars['block_theme'],
      '#menu_name' => $vars['menu_name'],
      '#trail' => $vars['trail'],
    ];
    $vars['items'] = $vars['subtree'];
    $vars['attributes']['data-submenu'] = 1;
    $vars['attributes']['data-group'] = !empty($item_config->item_config->group) ? $item_config->item_config->group : 0;
  }
  elseif (isset($menu_config->{$vars['attributes']['data-id']}) && count($menu_config->{$vars['attributes']['data-id']}->rows_content)) {
    $item_config = $menu_config->{$vars['attributes']['data-id']};
    $vars['content'] = [
      '#theme' => 'we_megamenu_submenu',
      '#items' => $vars['subtree'],
      '#item_config' => $item_config,
      '#section' => $vars['section'],
      '#block_theme' => $vars['block_theme'],
      '#menu_name' => $vars['menu_name'],
      '#trail' => $vars['trail'],
    ];
    $vars['attributes']['data-submenu'] = 1;
    $vars['attributes']['class'][] = 'dropdown-menu';
  }
}

/**
 * Prepare variables for we_megamenu_submenu.
 *
 * @param array $vars
 *   Variables are declared in theme.
 */
function template_preprocess_we_megamenu_submenu(array &$vars) {
  $item_config = $vars['item_config'];

  if (isset($item_config->rows_content) && !empty($item_config->rows_content)) {
    $rows_content = $item_config->rows_content;
    foreach ($rows_content as $key_row => $row) {
      $vars['row'][] = [
        '#theme' => 'we_megamenu_row',
        '#items' => $vars['items'],
        '#item_config' => $row,
        '#section' => $vars['section'],
        '#block_theme' => $vars['block_theme'],
        '#menu_name' => $vars['menu_name'],
        '#trail' => $vars['trail'],
      ];
    }
  }
  else {
    $vars['row'] = [
      '#theme' => 'we_megamenu_row',
      '#items' => $vars['items'],
      '#section' => $vars['section'],
      '#block_theme' => $vars['block_theme'],
      '#menu_name' => $vars['menu_name'],
      '#trail' => $vars['trail'],
    ];
  }

  $submenu_config = isset($item_config->submenu_config) ? $item_config->submenu_config : [];

  $vars['attributes'] = new Attribute();
  $vars['attributes']['class'] = [];
  $vars['attributes']['class'][] = 'we-mega-menu-submenu';
  $vars['attributes']['class'][] = isset($submenu_config->class) ? $submenu_config->class : '';
  $vars['attributes']['data-element-type'] = 'we-mega-menu-submenu';
  $vars['attributes']['data-submenu-width'] = isset($submenu_config->width) ? $submenu_config->width : '';
  $vars['attributes']['data-class'] = isset($submenu_config->class) ? $submenu_config->class : '';
  $vars['attributes']['style'] = isset($submenu_config->width) ? 'width: ' . $submenu_config->width . 'px' : '';
}

/**
 * Prepare variables for we_megamenu_row.
 *
 * @param array $vars variables are declared in theme.
 * @param array $vars
 *   Variables are declared in theme.
 */
function template_preprocess_we_megamenu_row(array &$vars) {
  $vars['attributes'] = new Attribute();
  $vars['attributes']['class'] = [];
  $vars['attributes']['class'][] = 'we-mega-menu-row';
  $vars['attributes']['data-element-type'] = 'we-mega-menu-row';
  
  if ($vars['item_config']) {
    foreach ($vars['item_config'] as $key_col => $col) {
      $vars['col'][] = [
        '#theme' => 'we_megamenu_col',
        '#items' => $vars['items'],
        '#item_config' => $col,
        '#section' => $vars['section'],
        '#block_theme' => $vars['block_theme'],
        '#menu_name' => $vars['menu_name'],
        '#trail' => $vars['trail'],
      ];
      $vars['attributes']['data-custom-row'] = isset(reset($col->col_content)->mlid) ? 0 : 1;
    }
  }
  else {
    $vars['col'] = [
      '#theme' => 'we_megamenu_col',
      '#items' => $vars['items'],
      '#section' => $vars['section'],
      '#block_theme' => $vars['block_theme'],
      '#menu_name' => $vars['menu_name'],
      '#trail' => $vars['trail'],
    ];
  }
}

/**
 * Prepare variables for we_megamenu_col.
 *
 * @param array $vars
 *   Variables are declared in theme.
 */
function template_preprocess_we_megamenu_col(array &$vars) {
  $vars['attributes'] = new Attribute();
  $vars['attributes']['class'] = [];
  $vars['attributes']['class'][] = 'we-mega-menu-col';
  $vars['attributes']['data-element-type'] = 'we-mega-menu-col';

  if ($vars['item_config']) {
    $col_items = $vars['item_config'];
    $col_config = $col_items->col_config;

    if (isset($col_config->block) && empty($col_config->block) && !empty($col_items->col_content)) {
      $vars['subul'] = [
        '#theme' => 'we_megamenu_subul',
        '#items' => $vars['items'],
        '#item_config' => $col_items->col_content,
        '#section' => $vars['section'],
        '#block_theme' => $vars['block_theme'],
        '#menu_name' => $vars['menu_name'],
        '#trail' => $vars['trail'],
      ];
    } 

    if (isset($col_items->col_content->block_id)) {
      $block_id = $col_items->col_content->block_id;
      $title = isset($col_config->block_title) && $col_config->block_title == 1 ? TRUE : FALSE;
      $vars['subul'] = [
        '#theme' => 'we_megamenu_block',
        '#block_content' => WeMegaMenuBuilder::renderBlock($block_id, $title, $vars['section']),
        '#section' => $vars['section'],
        '#block_theme' => $vars['block_theme'],
        '#menu_name' => $vars['menu_name'],
        '#trail' => $vars['trail'],
      ];
    }

    $vars['attributes']['class'][] = 'span' . $col_config->width;
    $vars['attributes']['class'][] = isset($col_config->hidewhencollapse) && $col_config->hidewhencollapse && !empty($col_config->hidewhencollapse) ? 'hidden-collapse' : '';
    $vars['attributes']['class'][] = isset($col_config->class) ? $col_config->class : '';
    $vars['attributes']['data-width'] = $col_config->width;
    $vars['attributes']['data-block'] = isset($col_config->block) ? $col_config->block : '';
    $vars['attributes']['data-blocktitle'] = isset($col_config->block_title) ? $col_config->block_title : '';
    $vars['attributes']['data-hidewhencollapse'] = isset($col_config->hidewhencollapse) ? $col_config->hidewhencollapse : '0';
    $vars['attributes']['data-class'] = isset($col_config->class) ? $col_config->class : '';
    $vars['attributes']['data-blocktitle'] = isset($col_config->block_title) ? $col_config->block_title : '';
  }
  else {
    $vars['subul'] = [
      '#theme' => 'we_megamenu_subul',
      '#items' => $vars['items'],
      '#section' => $vars['section'],
      '#block_theme' => $vars['block_theme'],
      '#menu_name' => $vars['menu_name'],
    ];
  }
}

/**
 * Prepare variables for we_megamenu_subul.
 *
 * @param array $vars
 *   Variables are declared in theme.
 */
function template_preprocess_we_megamenu_subul(array &$vars) {
  if ($vars['item_config']) {
    foreach ($vars['items'] as $key_li => $li) {
      $derivativeId = $li['derivativeId'];
      foreach ($vars['item_config'] as $key_item => $item) {
        if (isset($item->mlid)) {
          if ($item->mlid == $derivativeId) {
            $vars['lis'][] = [
              '#theme' => ['we_megamenu_li'],
              '#title' => $li['title'],
              '#item' => $li,
              '#subtree' => $li['subtree'],
              '#section' => $vars['section'],
              '#block_theme' => $vars['block_theme'],
              '#menu_name' => $vars['menu_name'],
              '#trail' => $vars['trail'],
            ];
          }
        }
      }
    }
  }
  else {
    foreach ($vars['items'] as $key_li => $li) {
      $vars['lis'][] = [
        '#theme' => ['we_megamenu_li'],
        '#title' => $li['title'],
        '#item' => $li,
        '#subtree' => $li['subtree'],
        '#section' => $vars['section'],
        '#block_theme' => $vars['block_theme'],
        '#menu_name' => $vars['menu_name'],
        '#trail' => $vars['trail'],
      ];
    }
  }
}

/**
 * Prepare variables for we_megamenu_block.
 *
 * @param array $vars
 *   Variables are declared in theme.
 */
function template_preprocess_we_megamenu_block(array &$vars) {
  $vars['block_content'] = $vars['block_content'];
}

/**
 * Implements hook_block_view_BASE_BLOCK_ID_alter().
 *
 * Config Contextual link of Drupal 8 Mega Menu blocks.
 */
function we_megamenu_block_view_we_megamenu_block_alter(array &$build, BlockPluginInterface $block) {
  $menus = menu_list_system_menus();
  $menu_name = $block->getDerivativeId();
  if (isset($menus[$menu_name])) {
    $build['#contextual_links']['menu'] = [
      'route_parameters' => [
        'menu' => $menu_name,
      ],
    ];
  }

  $build['#contextual_links']['we_megamenu_block']['route_parameters'] = [
    'menu_name' => $build['#derivative_plugin_id'],
  ];
}

/**
 * Implements hook_entity_insert().
 *
 * Reset menu to default status when origin menu changed.
 */
function we_megamenu_entity_insert(Drupal\Core\Entity\EntityInterface $entity) {
  if (method_exists($entity, 'getTypedData') && method_exists($entity, 'getEntityTypeId')) {
    $data = $entity->getTypedData();
    $data = $data->toArray();
    $entity_type = $entity->getEntityTypeId();

    switch ($entity_type) {
      case 'menu':
        
        break;
      
      case 'menu_link_content':
        if (isset($data['parent'][0]['value'])) {
          $mid_parent = $data['parent'][0]['value'];
          $mid_parent = str_replace('menu_link_content:', '', $mid_parent);
          $menu_name = $data['menu_name'][0]['value'];
          $config = \Drupal::config('system.theme');    
          $theme_name = $config->get('default');
          # Load main menu and insert to megamenu
          $menu_item_obj = new stdClass();
          $menu_item_obj->rows_content = [];
          $menu_item_obj->submenu_config = new stdClass();
          $menu_item_obj->submenu_config->width = '';
          $menu_item_obj->submenu_config->height = '';
          $menu_item_obj->submenu_config->type = '';
          $menu_item_obj->item_config = new stdClass();
          $menu_item_obj->item_config->level = 0;
          $menu_item_obj->item_config->type = '';
          $menu_item_obj->item_config->id = $entity->get('uuid')->getString();
          $menu_item_obj->item_config->submenu = '';
          $menu_item_obj->item_config->hide_sub_when_collapse = '';
          $menu_item_obj->item_config->group = '';
          $menu_item_obj->item_config->class = '';
          $menu_item_obj->item_config->{'data-icon'} = '';
          $menu_item_obj->item_config->{'data-caption'} = '';
          $menu_item_obj->item_config->{'data-alignsub'} = '';
          $menu_item_obj->item_config->{'data-target'} = '_self';

          # Mega menu config
          $menu_config = WeMegaMenuBuilder::loadConfig($menu_name, $theme_name);
          foreach ($menu_config->menu_config as $key_menu => $menu) {
            $mid_parent = ($mid_parent == 'standard.front_page') ? base_path() : $mid_parent;
            if ($key_menu == $mid_parent) {
              $rows_content = $menu->rows_content;

              $tmp_col_content = new stdClass();
              $tmp_col_content->mlid = $entity->get('uuid')->getString();
              $tmp_col_content->type = 'we-mega-menu-li';
              $tmp_col_content->item_config = new stdClass();

              $tmp_col_cfg = new stdClass();
              $tmp_col_cfg->hidewhencollapse = '';
              $tmp_col_cfg->type = 'we-mega-menu-col';
              $tmp_col_cfg->width = 12;
              $tmp_col_cfg->block = '';
              $tmp_col_cfg->class = '';
              $tmp_col_cfg->block_title = 0;

              $child_item = [
                'col_content' =>$tmp_col_content,
                'col_cfg' =>$tmp_col_cfg,
              ];
              
              $menu_position = WeMegaMenuBuilder::menuItemInsert($key_menu, $menu_config, $menu, $child_item);
            }
          }

          $menu_config->menu_config->{$entity->get('uuid')->getString()} = $menu_item_obj;
          $data_cfg = json_encode($menu_config);
          WeMegaMenuBuilder::saveConfig($menu_name, $theme_name, $data_cfg);
        }
        break;
    }
  }
}

/**
 * Implements hook_entity_delete().
 */
function we_megamenu_entity_delete(Drupal\Core\Entity\EntityInterface $entity) {
  if (method_exists($entity, 'getTypedData') && method_exists($entity, 'getEntityTypeId')) {
    $data = $entity->getTypedData();
    $data = $data->toArray();
    $entity_type = $entity->getEntityTypeId();
    

    switch ($entity_type) {
      case 'menu':
      
        break;
      
      case 'menu_link_content':
        $menu_name = $data['menu_name'][0]['value'];
        $config = \Drupal::config('system.theme');    
        $theme_name = $config->get('default');
        $menu_uuid = $entity->get('uuid')->getString();
        $menu_uuid = ($menu_uuid == 'standard.front_page') ? base_path() : $menu_uuid;
        $menu_config = WeMegaMenuBuilder::loadConfig($menu_name, $theme_name);
        WeMegaMenuBuilder::menuItemDelete($menu_config, $menu_uuid);
        WeMegaMenuBuilder::saveConfig($menu_name, $theme_name, json_encode($menu_config));
        break;
    }
  }
}

/**
 * Implements hook_entity_presave().
 *
 * Reset menu to default status when origin menu changed.
 */
function we_megamenu_entity_presave(EntityInterface $entity) {
  if (method_exists($entity, 'getTypedData') && method_exists($entity, 'getEntityTypeId')) {
    $data = $entity->getTypedData();
    $data = $data->toArray();
    $entity_type = $entity->getEntityTypeId();
    switch ($entity_type) {
      case 'menu':
        $menu_name = $data['id'];
        $config = \Drupal::config('system.theme');    
        $theme_name = $config->get('default');
        
        $tmp_col_content = new stdClass();
        $tmp_col_content->mlid = '';
        $tmp_col_content->type = 'we-mega-menu-li';
        $tmp_col_content->item_config = new stdClass();

        $tmp_col_cfg = new stdClass();
        $tmp_col_cfg->hidewhencollapse = '';
        $tmp_col_cfg->type = 'we-mega-menu-col';
        $tmp_col_cfg->width = 12;
        $tmp_col_cfg->block = '';
        $tmp_col_cfg->class = '';
        $tmp_col_cfg->block_title = 0;

        $child_item = [
          'col_content' => $tmp_col_content,
          'col_cfg' => $tmp_col_cfg,
        ];

        $menu_config = WeMegaMenuBuilder::loadConfig($menu_name, $theme_name);
        WeMegaMenuBuilder::dragDropMenuItems($menu_name, $theme_name, $menu_config, $child_item);
        WeMegaMenuBuilder::orderMenuItems($menu_config);
        WeMegaMenuBuilder::saveConfig($menu_name, $theme_name, json_encode($menu_config));
        break;
      
      case 'menu_link_content':
        
        break;
    }
  }
}

/**
 * Function we_megamenu_preprocess_html.
 */
function we_megamenu_preprocess_html(&$vars) {
  $current_path = \Drupal::service('path.current')->getPath();
  $need_path = 'admin/structure/we-mega-menu/';
  if (strpos($current_path, $need_path) !== FALSE) {
    $vars['attributes']['class'][] = 'we-mega-menu-backend';
    $backend_style = \Drupal::state()->get('we_megamenu_backend_style') ?: '';
    if (!empty($backend_style)) {
      $vars['attributes']['class'][] = $backend_style;
    }
  }
}

/**
 * Function we_megamenu_flush_render_cache.
 */
function we_megamenu_flush_render_cache() {
  $renderCache = \Drupal::service('cache.render');
  $renderCache->invalidateAll();
}