--- /dev/null
+<?php
+
+namespace Drupal\ctools_views\Plugin\Display;
+
+use Drupal\Core\Form\FormState;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\views\Plugin\Block\ViewsBlock;
+use Drupal\views\Plugin\views\display\Block as CoreBlock;
+use Drupal\views\Plugin\views\filter\InOperator;
+
+/**
+ * Provides a Block display plugin that allows for greater control over Views
+ * block settings.
+ */
+class Block extends CoreBlock {
+
+ /**
+ * {@inheritdoc}
+ */
+ public function optionsSummary(&$categories, &$options) {
+ parent::optionsSummary($categories, $options);
+ $filtered_allow = array_filter($this->getOption('allow'));
+ $filter_options = [
+ 'items_per_page' => $this->t('Items per page'),
+ 'offset' => $this->t('Pager offset'),
+ 'pager' => $this->t('Pager type'),
+ 'hide_fields' => $this->t('Hide fields'),
+ 'sort_fields' => $this->t('Reorder fields'),
+ 'disable_filters' => $this->t('Disable filters'),
+ 'configure_sorts' => $this->t('Configure sorts')
+ ];
+ $filter_intersect = array_intersect_key($filter_options, $filtered_allow);
+
+ $options['allow'] = array(
+ 'category' => 'block',
+ 'title' => $this->t('Allow settings'),
+ 'value' => empty($filtered_allow) ? $this->t('None') : implode(', ', $filter_intersect),
+ );
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function buildOptionsForm(&$form, FormStateInterface $form_state) {
+ parent::buildOptionsForm($form, $form_state);
+ $options = $form['allow']['#options'];
+ $options['offset'] = $this->t('Pager offset');
+ $options['pager'] = $this->t('Pager type');
+ $options['hide_fields'] = $this->t('Hide fields');
+ $options['sort_fields'] = $this->t('Reorder fields');
+ $options['disable_filters'] = $this->t('Disable filters');
+ $options['configure_sorts'] = $this->t('Configure sorts');
+ $form['allow']['#options'] = $options;
+ // Update the items_per_page if set.
+ $defaults = array_filter($form['allow']['#default_value']);
+ if (isset($defaults['items_per_page'])) {
+ $defaults['items_per_page'] = 'items_per_page';
+ }
+ $form['allow']['#default_value'] = $defaults;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function blockForm(ViewsBlock $block, array &$form, FormStateInterface $form_state) {
+ $form = parent::blockForm($block, $form, $form_state);
+
+ $allow_settings = array_filter($this->getOption('allow'));
+ $block_configuration = $block->getConfiguration();
+
+ // Modify "Items per page" block settings form.
+ if (!empty($allow_settings['items_per_page'])) {
+ // Items per page
+ $form['override']['items_per_page']['#type'] = 'number';
+ unset($form['override']['items_per_page']['#options']);
+ }
+
+ // Provide "Pager offset" block settings form.
+ if (!empty($allow_settings['offset'])) {
+ $form['override']['pager_offset'] = [
+ '#type' => 'number',
+ '#title' => $this->t('Pager offset'),
+ '#default_value' => isset($block_configuration['pager_offset']) ? $block_configuration['pager_offset'] : 0,
+ '#description' => $this->t('For example, set this to 3 and the first 3 items will not be displayed.'),
+ ];
+ }
+
+ // Provide "Pager type" block settings form.
+ if (!empty($allow_settings['pager'])) {
+ $pager_options = [
+ 'view' => $this->t('Inherit from view'),
+ 'some' => $this->t('Display a specified number of items'),
+ 'none' => $this->t('Display all items')
+ ];
+ $form['override']['pager'] = [
+ '#type' => 'radios',
+ '#title' => $this->t('Pager'),
+ '#options' => $pager_options,
+ '#default_value' => isset($block_configuration['pager']) ? $block_configuration['pager'] : 'view'
+ ];
+ }
+
+ // Provide "Hide fields" / "Reorder fields" block settings form.
+ if (!empty($allow_settings['hide_fields']) || !empty($allow_settings['sort_fields'])) {
+ // Set up the configuration table for hiding / sorting fields.
+ $fields = $this->getHandlers('field');
+ $header = [];
+ if (!empty($allow_settings['hide_fields'])) {
+ $header['hide'] = $this->t('Hide');
+ }
+ $header['label'] = $this->t('Label');
+ if (!empty($allow_settings['sort_fields'])) {
+ $header['weight'] = $this->t('Weight');
+ }
+ $form['override']['order_fields'] = [
+ '#type' => 'table',
+ '#header' => $header,
+ '#rows' => array(),
+ ];
+ if (!empty($allow_settings['sort_fields'])) {
+ $form['override']['order_fields']['#tabledrag'] = [
+ [
+ 'action' => 'order',
+ 'relationship' => 'sibling',
+ 'group' => 'field-weight',
+ ]
+ ];
+ $form['override']['order_fields']['#attributes'] = ['id' => 'order-fields'];
+ }
+
+ // Sort available field plugins by their currently configured weight.
+ $sorted_fields = [];
+ if (!empty($allow_settings['sort_fields']) && isset($block_configuration['fields'])) {
+ uasort($block_configuration['fields'], '\Drupal\ctools_views\Plugin\Display\Block::sortFieldsByWeight');
+ foreach (array_keys($block_configuration['fields']) as $field_name) {
+ if (!empty($fields[$field_name])) {
+ $sorted_fields[$field_name] = $fields[$field_name];
+ unset($fields[$field_name]);
+ }
+ }
+ if (!empty($fields)) {
+ foreach ($fields as $field_name => $field_info) {
+ $sorted_fields[$field_name] = $field_info;
+ }
+ }
+ }
+ else {
+ $sorted_fields = $fields;
+ }
+
+ // Add each field to the configuration table.
+ foreach ($sorted_fields as $field_name => $plugin) {
+ $field_label = $plugin->adminLabel();
+ if (!empty($plugin->options['label'])) {
+ $field_label .= ' (' . $plugin->options['label'] . ')';
+ }
+ if (!empty($allow_settings['sort_fields'])) {
+ $form['override']['order_fields'][$field_name]['#attributes']['class'][] = 'draggable';
+ }
+ $form['override']['order_fields'][$field_name]['#weight'] = !empty($block_configuration['fields'][$field_name]['weight']) ? $block_configuration['fields'][$field_name]['weight'] : '';
+ if (!empty($allow_settings['hide_fields'])) {
+ $form['override']['order_fields'][$field_name]['hide'] = [
+ '#type' => 'checkbox',
+ '#default_value' => !empty($block_configuration['fields'][$field_name]['hide']) ? $block_configuration['fields'][$field_name]['hide'] : 0,
+ ];
+ }
+ $form['override']['order_fields'][$field_name]['label'] = [
+ '#markup' => $field_label,
+ ];
+ if (!empty($allow_settings['sort_fields'])) {
+ $form['override']['order_fields'][$field_name]['weight'] = [
+ '#type' => 'weight',
+ '#title' => $this->t('Weight for @title', ['@title' => $field_label]),
+ '#title_display' => 'invisible',
+ '#delta' => 50,
+ '#default_value' => !empty($block_configuration['fields'][$field_name]['weight']) ? $block_configuration['fields'][$field_name]['weight'] : 0,
+ '#attributes' => ['class' => ['field-weight']],
+ ];
+ }
+ }
+ }
+
+ // Provide "Configure filters" / "Disable filters" block settings form.
+ if (!empty($allow_settings['disable_filters'])) {
+ $items = [];
+ foreach ((array) $this->getOption('filters') as $filter_name => $item) {
+ $item['value'] = isset($block_configuration["filter"][$filter_name]['value']) ? $block_configuration["filter"][$filter_name]['value'] : '';
+ $items[$filter_name] = $item;
+ }
+ $this->setOption('filters', $items);
+ $filters = $this->getHandlers('filter');
+
+ // Add a settings form for each exposed filter to configure or hide it.
+ foreach ($filters as $filter_name => $plugin) {
+ if ($plugin->isExposed() && $exposed_info = $plugin->exposedInfo()) {
+ $form['override']['filters'][$filter_name] = [
+ '#type' => 'details',
+ '#title' => $exposed_info['label'],
+ ];
+ $form['override']['filters'][$filter_name]['plugin'] = [
+ '#type' => 'value',
+ '#value' => $plugin,
+ ];
+ // Render "Disable filters" settings form.
+ if (!empty($allow_settings['disable_filters'])) {
+ $form['override']['filters'][$filter_name]['disable'] = [
+ '#type' => 'checkbox',
+ '#title' => $this->t('Disable'),
+ '#default_value' => !empty($block_configuration['filter'][$filter_name]['disable']) ? $block_configuration['filter'][$filter_name]['disable'] : 0,
+ ];
+ }
+ }
+ }
+ }
+
+ // Provide "Configure sorts" block settings form.
+ if (!empty($allow_settings['configure_sorts'])) {
+ $sorts = $this->getHandlers('sort');
+ $options = array(
+ 'ASC' => $this->t('Sort ascending'),
+ 'DESC' => $this->t('Sort descending'),
+ );
+ foreach ($sorts as $sort_name => $plugin) {
+ $form['override']['sort'][$sort_name] = [
+ '#type' => 'details',
+ '#title' => $plugin->adminLabel(),
+ ];
+ $form['override']['sort'][$sort_name]['plugin'] = [
+ '#type' => 'value',
+ '#value' => $plugin,
+ ];
+ $form['override']['sort'][$sort_name]['order'] = array(
+ '#title' => $this->t('Order'),
+ '#type' => 'radios',
+ '#options' => $options,
+ '#default_value' => $plugin->options['order']
+ );
+
+ // Set default values for sorts for this block.
+ if (!empty($block_configuration["sort"][$sort_name])) {
+ $form['override']['sort'][$sort_name]['order']['#default_value'] = $block_configuration["sort"][$sort_name];
+ }
+ }
+ }
+
+ return $form;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function blockSubmit(ViewsBlock $block, $form, FormStateInterface $form_state) {
+ // Set default value for items_per_page if left blank.
+ if (empty($form_state->getValue(array('override', 'items_per_page')))) {
+ $form_state->setValue(array('override', 'items_per_page'), "none");
+ }
+
+ parent::blockSubmit($block, $form, $form_state);
+ $configuration = $block->getConfiguration();
+ $allow_settings = array_filter($this->getOption('allow'));
+
+ // Save "Pager type" settings to block configuration.
+ if (!empty($allow_settings['pager'])) {
+ if ($pager = $form_state->getValue(['override', 'pager'])) {
+ $configuration['pager'] = $pager;
+ }
+ }
+
+ // Save "Pager offset" settings to block configuration.
+ if (!empty($allow_settings['offset'])) {
+ $configuration['pager_offset'] = $form_state->getValue(['override', 'pager_offset']);
+ }
+
+ // Save "Hide fields" / "Reorder fields" settings to block configuration.
+ if (!empty($allow_settings['hide_fields']) || !empty($allow_settings['sort_fields'])) {
+ if ($fields = array_filter($form_state->getValue(['override', 'order_fields']))) {
+ uasort($fields, '\Drupal\ctools_views\Plugin\Display\Block::sortFieldsByWeight');
+ $configuration['fields'] = $fields;
+ }
+ }
+
+ // Save "Configure filters" / "Disable filters" settings to block
+ // configuration.
+ unset($configuration['filter']);
+ if (!empty($allow_settings['disable_filters'])) {
+ if ($filters = $form_state->getValue(['override', 'filters'])) {
+ foreach ($filters as $filter_name => $filter) {
+ /** @var \Drupal\views\Plugin\views\filter\FilterPluginBase $plugin */
+ $plugin = $form_state->getValue(['override', 'filters', $filter_name, 'plugin']);
+ $configuration["filter"][$filter_name]['type'] = $plugin->getPluginId();
+
+ // Check if we want to disable this filter.
+ if (!empty($allow_settings['disable_filters'])) {
+ $disable = $form_state->getValue(['override', 'filters', $filter_name, 'disable']);
+ // If marked disabled, we don't really care about other stuff.
+ if ($disable) {
+ $configuration["filter"][$filter_name]['disable'] = $disable;
+ continue;
+ }
+ }
+ }
+ }
+ }
+
+ // Save "Configure sorts" settings to block configuration.
+ if (!empty($allow_settings['configure_sorts'])) {
+ $sorts = $form_state->getValue(['override', 'sort']);
+ foreach ($sorts as $sort_name => $sort) {
+ $plugin = $sort['plugin'];
+ // Check if we want to override the default sort order
+ if ($plugin->options['order'] != $sort['order']) {
+ $configuration['sort'][$sort_name] = $sort['order'];
+ }
+ }
+ }
+
+ $block->setConfiguration($configuration);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function preBlockBuild(ViewsBlock $block) {
+ parent::preBlockBuild($block);
+
+ $allow_settings = array_filter($this->getOption('allow'));
+ $config = $block->getConfiguration();
+ list(, $display_id) = explode('-', $block->getDerivativeId(), 2);
+
+ // Change pager offset settings based on block configuration.
+ if (!empty($allow_settings['offset'])) {
+ $this->view->setOffset($config['pager_offset']);
+ }
+
+ // Change pager style settings based on block configuration.
+ if (!empty($allow_settings['pager'])) {
+ $pager = $this->view->display_handler->getOption('pager');
+ if (!empty($config['pager']) && $config['pager'] != 'view') {
+ $pager['type'] = $config['pager'];
+ }
+ $this->view->display_handler->setOption('pager', $pager);
+ }
+
+ // Change fields output based on block configuration.
+ if (!empty($allow_settings['hide_fields']) || !empty($allow_settings['sort_fields'])) {
+ if (!empty($config['fields']) && $this->view->getStyle()->usesFields()) {
+ $fields = $this->view->getHandlers('field');
+ uasort($config['fields'], '\Drupal\ctools_views\Plugin\Display\Block::sortFieldsByWeight');
+ $iterate_fields = !empty($allow_settings['sort_fields']) ? $config['fields'] : $fields;
+ foreach (array_keys($iterate_fields) as $field_name) {
+ // Remove each field in sequence and re-add them to sort
+ // appropriately or hide if disabled.
+ $this->view->removeHandler($display_id, 'field', $field_name);
+ if (empty($allow_settings['hide_fields']) || (!empty($allow_settings['hide_fields']) && empty($config['fields'][$field_name]['hide']))) {
+ $this->view->addHandler($display_id, 'field', $fields[$field_name]['table'], $fields[$field_name]['field'], $fields[$field_name], $field_name);
+ }
+ }
+ }
+ }
+
+ // Change filters output based on block configuration.
+ if (!empty($allow_settings['disable_filters'])) {
+ $filters = $this->view->getHandlers('filter', $display_id);
+ foreach ($filters as $filter_name => $filter) {
+ // If we allow disabled filters and this filter is disabled, disable it
+ // and continue.
+ if (!empty($allow_settings['disable_filters']) && !empty($config["filter"][$filter_name]['disable'])) {
+ $this->view->removeHandler($display_id, 'filter', $filter_name);
+ continue;
+ }
+ }
+ }
+
+ // Change sorts based on block configuration.
+ if (!empty($allow_settings['configure_sorts'])) {
+ $sorts = $this->view->getHandlers('sort', $display_id);
+ foreach ($sorts as $sort_name => $sort) {
+ if (!empty($config["sort"][$sort_name])) {
+ $sort['order'] = $config["sort"][$sort_name];
+ $this->view->setHandler($display_id, 'sort', $sort_name, $sort);
+ }
+ }
+ }
+ }
+
+ protected function getFilterOptionsValue(array $filter, array $config) {
+ $plugin_definition = \Drupal::service('plugin.manager.views.filter')->getDefinition($config['type']);
+ if (is_subclass_of($plugin_definition['class'], '\Drupal\views\Plugin\views\filter\InOperator')) {
+ return array_values($config['value']);
+ }
+ return $config['value'][$filter['expose']['identifier']];
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ public function usesExposed() {
+ $filters = $this->getHandlers('filter');
+ foreach ($filters as $filter_name => $filter) {
+ if ($filter->isExposed() && !empty($filter->exposedInfo())) {
+ return TRUE;
+ }
+ }
+ return FALSE;
+ }
+
+ /**
+ * Exposed widgets typically only work with ajax in Drupal core, however
+ * #2605218 totally breaks the rest of the functionality in this display and
+ * in Core's Block display as well, so we allow non-ajax block views to use
+ * exposed filters and manually set the #action to the current request uri.
+ */
+ public function elementPreRender(array $element) {
+ /** @var \Drupal\views\ViewExecutable $view */
+ $view = $element['#view'];
+ if (!empty($view->exposed_widgets['#action']) && !$view->ajaxEnabled()) {
+ $view->exposed_widgets['#action'] = \Drupal::request()->getRequestUri();
+ }
+ return parent::elementPreRender($element);
+ }
+
+ /**
+ * Sort field config array by weight.
+ *
+ * @param $a
+ * @param $b
+ * @return int
+ */
+ public static function sortFieldsByWeight($a, $b) {
+ $a_weight = isset($a['weight']) ? $a['weight'] : 0;
+ $b_weight = isset($b['weight']) ? $b['weight'] : 0;
+ if ($a_weight == $b_weight) {
+ return 0;
+ }
+ return ($a_weight < $b_weight) ? -1 : 1;
+ }
+
+}