EWPP-482: Support for link fields in the multiselect widget.

src/Plugin/facets/widget/MultiselectWidget.php

@@ -4,6 +4,7 @@
 
 namespace Drupal\oe_list_pages\Plugin\facets\widget;
 
+use Drupal\Core\Entity\Element\EntityAutocomplete;
 use Drupal\Core\Entity\EntityFieldManagerInterface;
 use Drupal\Core\Entity\EntityTypeManagerInterface;
 use Drupal\Core\Field\EntityReferenceFieldItemListInterface;
@@ -13,6 +14,8 @@
 use Drupal\facets\FacetInterface;
 use Drupal\facets\Processor\ProcessorPluginManager;
 use Drupal\facets\Result\Result;
+use Drupal\link\LinkItemInterface;
+use Drupal\link\Plugin\Field\FieldWidget\LinkWidget;
 use Drupal\multivalue_form_element\Element\MultiValue;
 use Drupal\oe_list_pages\ListPresetFilter;
 use Drupal\oe_list_pages\ListSourceInterface;
@@ -80,6 +83,8 @@ public function __construct(array $configuration, $plugin_id, $plugin_definition
    *
    * @SuppressWarnings(PHPMD.CyclomaticComplexity)
    * @SuppressWarnings(PHPMD.NPathComplexity)
+   *
+   * @todo create a plugin type for supporting the various field types.
    */
   public function buildDefaultValueForm(array $form, FormStateInterface $form_state, FacetInterface $facet, ListPresetFilter $preset_filter = NULL): array {
     /** @var \Drupal\oe_list_pages\ListSourceInterface $list_source */
@@ -116,7 +121,6 @@ public function buildDefaultValueForm(array $form, FormStateInterface $form_stat
       return $form;
     }
 
-    // First, we cover entity references.
     if (in_array(EntityReferenceFieldItemListInterface::class, class_implements($field_definition->getClass()))) {
       $entity_storage = $this->entityTypeManager->getStorage($field_definition->getSetting('target_type'));
       $default_value = [];
@@ -175,6 +179,30 @@ public function buildDefaultValueForm(array $form, FormStateInterface $form_stat
       return $form;
     }
 
+    if ($field_type === 'link') {
+      $link_type = $field_definition->getSetting('link_type');
+      $default_value = [];
+      foreach ($active_items as $active_item) {
+        $default_value[] = $this->getUriAsDisplayableString($active_item);
+      }
+      $form[$facet->id()]['#default_value'] = $default_value;
+      $form[$facet->id()]['link'] = [
+        '#type' => 'url',
+        '#element_validate' => [[LinkWidget::class, 'validateUriElement']],
+        '#maxlength' => 2048,
+        '#link_type' => $link_type,
+      ];
+
+      if ($link_type & LinkItemInterface::LINK_INTERNAL) {
+        $form[$facet->id()]['link']['#type'] = 'entity_autocomplete';
+        $form[$facet->id()]['link']['#target_type'] = 'node';
+        $form[$facet->id()]['link']['#process_default_value'] = FALSE;
+      }
+
+      $form_state->set('multivalue_child', 'link');
+      return $form;
+    }
+
     return $this->build($facet);
   }
 
@@ -218,6 +246,15 @@ public function getDefaultValuesLabel(FacetInterface $facet, ListSourceInterface
       return $filter_operators[$filter->getOperator()] . ': ' . parent::getDefaultValuesLabel($facet, $list_source, $filter);
     }
 
+    if ($field_type === 'link') {
+      $values = [];
+      foreach ($filter_value as $value) {
+        $values[] = $this->getUriAsDisplayableString($value);
+      }
+
+      return $filter_operators[$filter->getOperator()] . ': ' . implode(', ', $values);
+    }
+
     return $filter_operators[$filter->getOperator()] . ': ' . parent::getDefaultValuesLabel($facet, $list_source, $filter);
   }
 
@@ -327,4 +364,45 @@ protected function facetHasDefaultStatus(FacetInterface $facet): bool {
     return FALSE;
   }
 
+  /**
+   * Gets the URI without the 'internal:' or 'entity:' scheme.
+   *
+   * @param string $uri
+   *   The URI.
+   *
+   * @return string
+   *   The URI.
+   *
+   * @see LinkWidget::getUriAsDisplayableString()
+   */
+  protected function getUriAsDisplayableString(string $uri): string {
+    $scheme = parse_url($uri, PHP_URL_SCHEME);
+
+    // By default, the displayable string is the URI.
+    $displayable_string = $uri;
+
+    // A different displayable string may be chosen in case of the 'internal:'
+    // or 'entity:' built-in schemes.
+    if ($scheme === 'internal') {
+      $uri_reference = explode(':', $uri, 2)[1];
+      $path = parse_url($uri, PHP_URL_PATH);
+      if ($path === '/') {
+        $uri_reference = '<front>' . substr($uri_reference, 1);
+      }
+
+      $displayable_string = $uri_reference;
+    }
+    elseif ($scheme === 'entity') {
+      list($entity_type, $entity_id) = explode('/', substr($uri, 7), 2);
+      if ($entity_type == 'node' && $entity = $this->entityTypeManager->getStorage($entity_type)->load($entity_id)) {
+        $displayable_string = EntityAutocomplete::getEntityLabels([$entity]);
+      }
+    }
+    elseif ($scheme === 'route') {
+      $displayable_string = ltrim($displayable_string, 'route:');
+    }
+
+    return $displayable_string;
+  }
+
 }

tests/modules/oe_list_pages_filters_test/config/install/facets.facet.link.yml

@@ -0,0 +1,50 @@
+langcode: en
+status: true
+dependencies: {  }
+id: link
+name: Link
+url_alias: link
+weight: 0
+min_count: 1
+show_only_one_result: false
+field_identifier: field_link
+facet_source_id: 'list_facet_source:node:content_type_one'
+widget:
+  type: oe_list_pages_multiselect
+  config:
+    show_numbers: false
+query_operator: or
+use_hierarchy: false
+expand_hierarchy: false
+enable_parent_when_child_gets_disabled: true
+hard_limit: 0
+exclude: false
+only_visible_when_facet_source_is_visible: true
+processor_configs:
+  active_widget_order:
+    processor_id: active_widget_order
+    weights:
+      sort: 20
+    settings:
+      sort: DESC
+  count_widget_order:
+    processor_id: count_widget_order
+    weights:
+      sort: 30
+    settings:
+      sort: DESC
+  display_value_widget_order:
+    processor_id: display_value_widget_order
+    weights:
+      sort: 40
+    settings:
+      sort: ASC
+  url_processor_handler:
+    processor_id: url_processor_handler
+    weights:
+      pre_query: 50
+      build: 15
+    settings: {  }
+empty_behavior:
+  behavior: none
+show_title: false

tests/modules/oe_list_pages_filters_test/config/install/field.field.node.content_type_one.field_link.yml

@@ -0,0 +1,22 @@
+langcode: en
+status: true
+dependencies:
+  config:
+    - field.storage.node.field_link
+    - node.type.content_type_one
+  module:
+    - link
+id: node.content_type_one.field_link
+field_name: field_link
+entity_type: node
+bundle: content_type_one
+label: Link
+description: ''
+required: false
+translatable: false
+default_value: {  }
+default_value_callback: ''
+settings:
+  link_type: 17
+  title: 0
+field_type: link

tests/modules/oe_list_pages_filters_test/config/install/field.storage.node.field_link.yml

@@ -0,0 +1,18 @@
+langcode: en
+status: true
+dependencies:
+  module:
+    - link
+    - node
+id: node.field_link
+field_name: field_link
+entity_type: node
+type: link
+settings: {  }
+module: link
+locked: false
+cardinality: 1
+translatable: true
+indexes: {  }
+persist_with_no_fields: false
+custom_storage: false

tests/modules/oe_list_pages_filters_test/config/install/search_api.index.node.yml

@@ -4,6 +4,7 @@ dependencies:
   config:
     - field.storage.node.body
     - field.storage.node.field_date_range
+    - field.storage.node.field_link
     - field.storage.node.field_reference
     - field.storage.node.field_select_one
     - field.storage.node.field_select_two
@@ -40,6 +41,14 @@ field_settings:
     dependencies:
       config:
         - field.storage.node.field_date_range
+  field_link:
+    label: Link
+    datasource_id: 'entity:node'
+    property_path: field_link
+    type: string
+    dependencies:
+      config:
+        - field.storage.node.field_link
   field_reference:
     label: Reference
     datasource_id: 'entity:node'
@@ -103,6 +112,7 @@ processor_settings:
     all_fields: true
     fields:
       - body
+      - field_link
       - field_select_one
       - field_select_two
       - title

tests/modules/oe_list_pages_filters_test/oe_list_pages_filters_test.info.yml

@@ -7,6 +7,7 @@ core: 8.x
 
 dependencies:
   - drupal:entity_reference
+  - drupal:link
   - drupal:options
   - drupal:datetime
   - drupal:datetime_range

tests/src/FunctionalJavascript/ListPagesPresetFiltersTest.php

@@ -187,6 +187,7 @@ public function testListPagePresetFilters(): void {
       'field_select_one' => 'test1',
       'field_reference' => [$yellow_node->id(), $green_node->id()],
       'created' => $date->getTimestamp(),
+      'field_link' => 'http://banana.com',
     ];
     $node = Node::create($values);
     $node->save();
@@ -200,6 +201,7 @@ public function testListPagePresetFilters(): void {
       'field_select_one' => 'test1',
       'field_reference' => $yellow_node->id(),
       'created' => $date->getTimestamp(),
+      'field_link' => 'http://sun.com',
     ];
     $node = Node::create($values);
     $node->save();
@@ -213,6 +215,8 @@ public function testListPagePresetFilters(): void {
       'field_select_one' => 'test1',
       'field_reference' => $green_node->id(),
       'created' => $date->getTimestamp(),
+      // Sun title.
+      'field_link' => 'entity:node/' . $node->id(),
     ];
     $node = Node::create($values);
     $node->save();
@@ -240,6 +244,7 @@ public function testListPagePresetFilters(): void {
     $created_filter_id = ListPresetFiltersBuilder::generateFilterId('created');
     $published_filter_id = ListPresetFiltersBuilder::generateFilterId('list_facet_source_node_content_type_onestatus');
     $reference_filter_id = ListPresetFiltersBuilder::generateFilterId('reference');
+    $link_filter_id = ListPresetFiltersBuilder::generateFilterId('link');
 
     $admin = $this->createUser([], NULL, TRUE);
     $this->drupalLogin($admin);
@@ -560,6 +565,43 @@ public function testListPagePresetFilters(): void {
     $this->assertSession()->assertWaitOnAjaxRequest();
     $assert = $this->assertSession();
 
+    // Add a Link filter.
+    $page->selectFieldOption('Add default value for', 'Link');
+    $this->assertSession()->assertWaitOnAjaxRequest();
+    $this->getSession()->getPage()->fillField('emr_plugins_oe_list_page[wrapper][default_filter_values][wrapper][edit][' . $link_filter_id . '][link][0][link]', 'http://banana.com');
+    $page->pressButton('Set default value');
+    $this->assertSession()->assertWaitOnAjaxRequest();
+    $expected_set_filters = [['key' => 'Link', 'value' => 'Any of: http://banana.com']];
+    $this->assertDefaultValueForFilters($expected_set_filters);
+    $page->pressButton('Save');
+    $node = $this->drupalGetNodeByTitle('List page for ct1');
+    $this->drupalGet($node->toUrl());
+    $this->assertSession()->pageTextNotContains('Cherry title');
+    $this->assertSession()->pageTextNotContains('Sun title');
+    $this->assertSession()->pageTextNotContains('Grass title');
+    $this->assertSession()->pageTextContains('Banana title');
+    // Change the link to an internal one.
+    $this->drupalGet($node->toUrl('edit-form'));
+    $this->clickLink('List Page');
+    $page->pressButton('edit-' . $link_filter_id);
+    $this->assertSession()->assertWaitOnAjaxRequest();
+    $nodes = \Drupal::entityTypeManager()->getStorage('node')->loadByProperties(['title' => 'Sun title']);
+    $sun_title = reset($nodes);
+    $this->getSession()->getPage()->fillField('emr_plugins_oe_list_page[wrapper][default_filter_values][wrapper][edit][' . $link_filter_id . '][link][0][link]', sprintf('%s (%s)', $sun_title->label(), $sun_title->id()));
+    $page->pressButton('Set default value');
+    $this->assertSession()->assertWaitOnAjaxRequest();
+    $page->pressButton('Save');
+    $this->assertSession()->pageTextNotContains('Cherry title');
+    $this->assertSession()->pageTextNotContains('Sun title');
+    $this->assertSession()->pageTextContains('Grass title');
+    $this->assertSession()->pageTextNotContains('Banana title');
+
+    // Remove filters.
+    $this->drupalGet($node->toUrl('edit-form'));
+    $this->clickLink('List Page');
+    $page->pressButton('delete-' . $link_filter_id);
+    $this->assertSession()->assertWaitOnAjaxRequest();
+
     // Test an OR filter.
     $page->selectFieldOption('Add default value for', 'Reference');
     $this->assertSession()->assertWaitOnAjaxRequest();