class ViewListBuilder

class ViewListBuilder extends ConfigEntityListBuilder {
    
    /**
     * The views display plugin manager to use.
     *
     * @var \Drupal\Component\Plugin\PluginManagerInterface
     */
    protected $displayManager;
    
    /**
     * {@inheritdoc}
     */
    public static function createInstance(ContainerInterface $container, EntityTypeInterface $entity_type) {
        return new static($entity_type, $container->get('entity_type.manager')
            ->getStorage($entity_type->id()), $container->get('plugin.manager.views.display'));
    }
    
    /**
     * Constructs a new ViewListBuilder object.
     *
     * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
     *   The entity type definition.
     * @param \Drupal\Core\Entity\EntityStorageInterface $storage
     *   The entity storage class.
     * @param \Drupal\Component\Plugin\PluginManagerInterface $display_manager
     *   The views display plugin manager to use.
     */
    public function __construct(EntityTypeInterface $entity_type, EntityStorageInterface $storage, PluginManagerInterface $display_manager) {
        parent::__construct($entity_type, $storage);
        $this->displayManager = $display_manager;
        // This list builder uses client-side filters which requires all entities to
        // be listed, disable the pager.
        // @todo https://www.drupal.org/node/2536826 change the filtering to support
        //   a pager.
        $this->limit = FALSE;
    }
    
    /**
     * {@inheritdoc}
     */
    public function load() {
        $entities = [
            'enabled' => [],
            'disabled' => [],
        ];
        foreach (parent::load() as $entity) {
            if ($entity->status()) {
                $entities['enabled'][] = $entity;
            }
            else {
                $entities['disabled'][] = $entity;
            }
        }
        return $entities;
    }
    
    /**
     * {@inheritdoc}
     */
    public function buildRow(EntityInterface $view) {
        $row = parent::buildRow($view);
        return [
            'data' => [
                'view_name' => [
                    'data' => [
                        '#plain_text' => $view->label(),
                    ],
                ],
                'machine_name' => [
                    'data' => [
                        '#plain_text' => $view->id(),
                    ],
                ],
                'description' => [
                    'data' => [
                        '#plain_text' => $view->get('description'),
                    ],
                ],
                'displays' => [
                    'data' => [
                        '#theme' => 'views_ui_view_displays_list',
                        '#displays' => $this->getDisplaysList($view),
                    ],
                ],
                'operations' => $row['operations'],
            ],
            '#attributes' => [
                'class' => [
                    $view->status() ? 'views-ui-list-enabled' : 'views-ui-list-disabled',
                ],
            ],
        ];
    }
    
    /**
     * {@inheritdoc}
     */
    public function buildHeader() {
        return [
            'view_name' => [
                'data' => $this->t('View name'),
                '#attributes' => [
                    'class' => [
                        'views-ui-name',
                    ],
                ],
            ],
            'machine_name' => [
                'data' => $this->t('Machine name'),
                '#attributes' => [
                    'class' => [
                        'views-ui-machine-name',
                    ],
                ],
            ],
            'description' => [
                'data' => $this->t('Description'),
                '#attributes' => [
                    'class' => [
                        'views-ui-description',
                    ],
                ],
            ],
            'displays' => [
                'data' => $this->t('Displays'),
                '#attributes' => [
                    'class' => [
                        'views-ui-displays',
                    ],
                ],
            ],
            'operations' => [
                'data' => $this->t('Operations'),
                '#attributes' => [
                    'class' => [
                        'views-ui-operations',
                    ],
                ],
            ],
        ];
    }
    
    /**
     * {@inheritdoc}
     */
    public function getDefaultOperations(EntityInterface $entity) {
        $operations = parent::getDefaultOperations($entity);
        // Remove destination redirect for Edit operation.
        $operations['edit']['url'] = $entity->toUrl('edit-form');
        if ($entity->hasLinkTemplate('duplicate-form')) {
            $operations['duplicate'] = [
                'title' => $this->t('Duplicate'),
                'weight' => 15,
                'url' => $entity->toUrl('duplicate-form'),
            ];
        }
        // Add AJAX functionality to enable/disable operations.
        foreach ([
            'enable',
            'disable',
        ] as $op) {
            if (isset($operations[$op])) {
                $operations[$op]['url'] = $entity->toUrl($op);
                // Enable and disable operations should use AJAX.
                $operations[$op]['attributes']['class'][] = 'use-ajax';
            }
        }
        // ajax.js focuses automatically on the data-drupal-selector element. When
        // enabling the view again, focusing on the disable link doesn't work, as it
        // is hidden. We assign data-drupal-selector to every link, so it focuses
        // on the edit link.
        foreach ($operations as &$operation) {
            $operation['attributes']['data-drupal-selector'] = 'views-listing-' . $entity->id();
        }
        return $operations;
    }
    
    /**
     * {@inheritdoc}
     */
    public function render() {
        $entities = $this->load();
        $list['#type'] = 'container';
        $list['#attributes']['id'] = 'views-entity-list';
        $list['#attached']['library'][] = 'core/drupal.ajax';
        $list['#attached']['library'][] = 'views_ui/views_ui.listing';
        $list['filters'] = [
            '#type' => 'container',
            '#attributes' => [
                'class' => [
                    'table-filter',
                    'js-show',
                ],
            ],
        ];
        $list['filters']['text'] = [
            '#type' => 'search',
            '#title' => $this->t('Filter'),
            '#title_display' => 'invisible',
            '#size' => 60,
            '#placeholder' => $this->t('Filter by view name, machine name, description, or display path'),
            '#attributes' => [
                'class' => [
                    'views-filter-text',
                ],
                'data-table' => '.views-listing-table',
                'autocomplete' => 'off',
                'title' => $this->t('Enter a part of the view name, machine name, description, or display path to filter by.'),
            ],
        ];
        $list['enabled']['heading']['#markup'] = '<h2>' . $this->t('Enabled', [], [
            'context' => 'Plural',
        ]) . '</h2>';
        $list['disabled']['heading']['#markup'] = '<h2>' . $this->t('Disabled', [], [
            'context' => 'Plural',
        ]) . '</h2>';
        foreach ([
            'enabled',
            'disabled',
        ] as $status) {
            $list[$status]['#type'] = 'container';
            $list[$status]['#attributes'] = [
                'class' => [
                    'views-list-section',
                    $status,
                ],
            ];
            $list[$status]['table'] = [
                '#theme' => 'views_ui_views_listing_table',
                '#headers' => $this->buildHeader(),
                '#attributes' => [
                    'class' => [
                        'views-listing-table',
                        $status,
                    ],
                ],
            ];
            foreach ($entities[$status] as $entity) {
                $list[$status]['table']['#rows'][$entity->id()] = $this->buildRow($entity);
            }
        }
        $list['enabled']['table']['#empty'] = $this->t('There are no enabled views.');
        $list['disabled']['table']['#empty'] = $this->t('There are no disabled views.');
        return $list;
    }
    
    /**
     * Gets a list of displays included in the view.
     *
     * @param \Drupal\Core\Entity\EntityInterface $view
     *   The view entity instance to get a list of displays for.
     *
     * @return array
     *   An array of display types that this view includes.
     */
    protected function getDisplaysList(EntityInterface $view) {
        $displays = [];
        $executable = $view->getExecutable();
        $executable->initDisplay();
        foreach ($executable->displayHandlers as $display) {
            $rendered_path = FALSE;
            $definition = $display->getPluginDefinition();
            if (!empty($definition['admin'])) {
                if ($display->hasPath()) {
                    $path = $display->getPath();
                    if ($view->status() && strpos($path, '%') === FALSE) {
                        // Wrap this in a try/catch as trying to generate links to some
                        // routes may throw a NotAcceptableHttpException if they do not
                        // respond to HTML, such as RESTExports.
                        try {
                            // @todo Views should expect and store a leading /. See:
                            //   https://www.drupal.org/node/2423913
                            $rendered_path = Link::fromTextAndUrl('/' . $path, Url::fromUserInput('/' . $path))->toString();
                        } catch (NotAcceptableHttpException $e) {
                            $rendered_path = '/' . $path;
                        }
                    }
                    else {
                        $rendered_path = '/' . $path;
                    }
                }
                $displays[] = [
                    'display' => $definition['admin'],
                    'path' => $rendered_path,
                ];
            }
        }
        sort($displays);
        return $displays;
    }

}