opencase/opencase.module

<?php

/**
 * @file
 * Contains opencase.module.
 */

use Drupal\Core\Routing\RouteMatchInterface;


/**
 * Implements hook_block_access
 *
 * Forbids the opencase_contextual_menu block on pages where it has no content.
 * (Without this, it was displaying an empty sidebar)
 */
function opencase_block_access(\Drupal\block\Entity\Block $block, $operation, \Drupal\Core\Session\AccountInterface $account) {
  if ($operation == 'view' && $block->getPluginId() == 'opencase_contextual_menu') {
    $route_name = \Drupal::routeMatch()->getRouteName();
    $routes_where_it_should_be_shown = [
      'entity.oc_actor.canonical',
      'entity.oc_actor.edit_form',
      'view.cases.page_1',
      'entity.oc_case.canonical',
      'entity.oc_case.edit_form',
      'entity.oc_case.add_form',
      'view.activities.page_1',
      'entity.oc_activity.canonical',
      'entity.oc_activity.edit_form',
      'entity.oc_activity.add_form'
    ];
    return \Drupal\Core\Access\AccessResult::forbiddenIf(!in_array($route_name, $routes_where_it_should_be_shown))
      ->addCacheableDependency($block);
  }

  // No opinion.
  return \Drupal\Core\Access\AccessResult::neutral();
}


/**
 * Implements hook_page_attachments
 *
 * Add the opencase library to every page
 */
function opencase_page_attachments(array &$page) {
  $page['#attached']['library'][] = 'opencase/opencase-lib';
}


/**
 * Implements hook_link_alter
 *
 * Makes menu items that are external links open in new tab.
 */
function opencase_link_alter(&$variables) {
  if ($variables['url']->isExternal()) {
    $variables['options']['attributes'] = ['target' => '_blank'];
  }
}

/**
 * Implements hook_preprocess_page_title
 *  
 * Modify the page title to include more information 
 */
function opencase_preprocess_page_title(&$variables) {
  
   $route_name = \Drupal::routeMatch()->getRouteName();
    switch ($route_name) {
      case 'entity.oc_case.canonical':
        $case = \Drupal::routeMatch()->getParameter('oc_case');
        $variables['title'] = $case->getName() . ": Case Details and Files";
        break;
      case 'view.cases.page_1':
        $actor_id = \Drupal::routeMatch()->getParameter('actor_id');
        $actor = \Drupal::entityTypeManager()->getStorage('oc_actor')->load($actor_id); 
        $variables['title'] = $actor->getName() . ": Cases";
        break;
      case 'view.activities.page_1':
        $case_id = \Drupal::routeMatch()->getParameter('case_id');
        $case = \Drupal::entityTypeManager()->getStorage('oc_case')->load($case_id); 
        $variables['title'] = $case->getName() . ": Activities";
        break;
    }
}

/**
 * Implements hook_help().
 */
function opencase_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    // Main module help for the opencase module.
    case 'help.page.opencase':
      $output = '';
      $output .= '<h3>' . t('About') . '</h3>';
      $output .= '<p>' . t('Simple Case Management') . '</p>';
      return $output;

    default:
  }
}

/**
 * Implements hook_theme().
 */
function opencase_theme() {
  return [
    'opencase' => [
      'render element' => 'children',
    ],
  ];
}