Issue #1892182 by sun, nod_, jibran: #type details: Rename #collapsed to #open.

core/includes/form.inc

@@ -1004,7 +1004,7 @@ function form_get_options($element, $key) {
  * @param $variables
  *   An associative array containing:
  *   - element: An associative array containing the properties of the element.
- *     Properties used: #attributes, #children, #collapsed, #description, #id,
+ *     Properties used: #attributes, #children, #description, #id,
  *     #title, #value.
  *
  * @ingroup themeable
@@ -1071,7 +1071,7 @@ function theme_fieldset($variables) {
  * @param array $variables
  *   An associative array containing:
  *   - element: An associative array containing the properties of the element.
- *     Properties used: #attributes, #children, #collapsed, #collapsible,
+ *     Properties used: #attributes, #children, #open,
  *     #description, #id, #title, #value, #optional.
  *
  * @ingroup themeable
@@ -1085,7 +1085,7 @@ function template_preprocess_details(&$variables) {
     if (!empty($element['#attributes']['id'])) {
       $variables['summary_attributes']['aria-controls'] = $element['#attributes']['id'];
     }
-    $variables['summary_attributes']['aria-expanded'] = empty($element['#attributes']['open']) ? FALSE : TRUE;
+    $variables['summary_attributes']['aria-expanded'] = !empty($element['#attributes']['open']);
     $variables['summary_attributes']['aria-pressed'] = $variables['summary_attributes']['aria-expanded'];
   }
   $variables['title'] = (!empty($element['#title'])) ? $element['#title'] : '';
@@ -2063,7 +2063,7 @@ function form_pre_render_details($element) {
 
   // Collapsible details.
   $element['#attached']['library'][] = array('core', 'drupal.collapse');
-  if (empty($element['#collapsed'])) {
+  if (!empty($element['#open'])) {
     $element['#attributes']['open'] = 'open';
   }
 

core/lib/Drupal/Core/Database/Install/Tasks.php

@@ -247,7 +247,6 @@ public function getFormOptions(array $database) {
     $form['advanced_options'] = array(
       '#type' => 'details',
       '#title' => t('Advanced options'),
-      '#collapsed' => TRUE,
       '#weight' => 10,
     );
 

core/lib/Drupal/Core/FileTransfer/FileTransfer.php

@@ -405,7 +405,6 @@ public function getSettingsForm() {
     $form['advanced'] = array(
       '#type' => 'details',
       '#title' => t('Advanced settings'),
-      '#collapsed' => TRUE,
     );
     $form['advanced']['hostname'] = array(
       '#type' => 'textfield',

core/lib/Drupal/Core/Update/Form/UpdateScriptSelectionForm.php

@@ -30,7 +30,6 @@ public function buildForm(array $form, array &$form_state) {
     $form['start'] = array(
       '#tree' => TRUE,
       '#type' => 'details',
-      '#collapsed' => TRUE,
     );
 
     // Ensure system.module's updates appear first.

core/modules/action/lib/Drupal/action/Form/ActionAdminManageForm.php

@@ -65,6 +65,7 @@ public function buildForm(array $form, array &$form_state) {
       '#type' => 'details',
       '#title' => $this->t('Create an advanced action'),
       '#attributes' => array('class' => array('container-inline')),
+      '#open' => TRUE,
     );
     $form['parent']['action'] = array(
       '#type' => 'select',

core/modules/aggregator/lib/Drupal/aggregator/Form/SettingsForm.php

@@ -145,7 +145,7 @@ public function buildForm(array $form, array &$form_state) {
         '#type' => 'details',
         '#title' => $this->t('Basic configuration'),
         '#description' => $this->t('For most aggregation tasks, the default settings are fine.'),
-        '#collapsed' => FALSE,
+        '#open' => TRUE,
       );
       $form['basic_conf'] += $basic_conf;
     }

core/modules/aggregator/lib/Drupal/aggregator/Plugin/aggregator/processor/DefaultProcessor.php

@@ -83,7 +83,7 @@ public function buildConfigurationForm(array $form, array &$form_state) {
         '#type' => 'details',
         '#title' => t('Default processor settings'),
         '#description' => $info['description'],
-        '#collapsed' => !in_array($info['id'], $processors),
+        '#open' => in_array($info['id'], $processors),
       );
     }
 

core/modules/aggregator/tests/modules/aggregator_test/lib/Drupal/aggregator_test/Plugin/aggregator/processor/TestProcessor.php

@@ -74,7 +74,7 @@ public function buildConfigurationForm(array $form, array &$form_state) {
       '#type' => 'details',
       '#title' => t('Test processor settings'),
       '#description' => $info['description'],
-      '#collapsed' => !in_array($info['id'], $processors),
+      '#open' => in_array($info['id'], $processors),
     );
     // Add some dummy settings to verify settingsForm is called.
     $form['processors'][$info['id']]['dummy_length'] = array(

core/modules/block/custom_block/lib/Drupal/custom_block/CustomBlockFormController.php

@@ -134,9 +134,8 @@ public function form(array $form, array &$form_state) {
     $form['revision_information'] = array(
       '#type' => 'details',
       '#title' => $this->t('Revision information'),
-      '#collapsible' => TRUE,
-      // Collapsed by default when "Create new revision" is unchecked.
-      '#collapsed' => !$block->isNewRevision(),
+      // Open by default when "Create new revision" is checked.
+      '#open' => $block->isNewRevision(),
       '#group' => 'advanced',
       '#attributes' => array(
         'class' => array('custom-block-form-revision-information'),

core/modules/block/custom_block/lib/Drupal/custom_block/CustomBlockTypeFormController.php

@@ -57,8 +57,6 @@ public function form(array $form, array &$form_state) {
       $form['language'] = array(
         '#type' => 'details',
         '#title' => t('Language settings'),
-        '#collapsible' => TRUE,
-        '#collapsed' => TRUE,
         '#group' => 'additional_settings',
       );
 

core/modules/block/lib/Drupal/block/BlockFormController.php

@@ -127,7 +127,6 @@ public function form(array $form, array &$form_state) {
     $form['visibility']['path'] = array(
       '#type' => 'details',
       '#title' => $this->t('Pages'),
-      '#collapsed' => TRUE,
       '#group' => 'visibility',
       '#weight' => 0,
     );
@@ -183,7 +182,6 @@ public function form(array $form, array &$form_state) {
       $form['visibility']['language'] = array(
         '#type' => 'details',
         '#title' => $this->t('Languages'),
-        '#collapsed' => TRUE,
         '#group' => 'visibility',
         '#weight' => 5,
       );
@@ -216,7 +214,6 @@ public function form(array $form, array &$form_state) {
     $form['visibility']['role'] = array(
       '#type' => 'details',
       '#title' => $this->t('Roles'),
-      '#collapsed' => TRUE,
       '#group' => 'visibility',
       '#weight' => 10,
     );

core/modules/block/lib/Drupal/block/BlockListController.php

@@ -348,6 +348,7 @@ public function buildForm(array $form, array &$form_state) {
         $form['place_blocks']['list'][$category_key] = array(
           '#type' => 'details',
           '#title' => $category,
+          '#open' => TRUE,
           'content' => array(
             '#theme' => 'links',
             '#links' => array(),

core/modules/book/lib/Drupal/book/BookManager.php

@@ -201,7 +201,6 @@ public function addFormElements(array $form, array &$form_state, NodeInterface $
       '#type' => 'details',
       '#title' => $this->t('Book outline'),
       '#weight' => 10,
-      '#collapsed' => TRUE,
       '#group' => 'advanced',
       '#attributes' => array(
         'class' => array('book-outline-form'),

core/modules/ckeditor/lib/Drupal/ckeditor/CKEditorPluginManager.php

@@ -156,6 +156,7 @@ public function injectPluginSettingsForm(array &$form, array &$form_state, Edito
         $form['plugins'][$plugin_id] = array(
           '#type' => 'details',
           '#title' => $definitions[$plugin_id]['label'],
+          '#open' => TRUE,
           '#group' => 'editor][settings][plugin_settings',
           '#attributes' => array(
             'data-ckeditor-plugin-id' => $plugin_id,

core/modules/color/color.module

@@ -45,6 +45,7 @@ function color_form_system_theme_settings_alter(&$form, &$form_state) {
     $form['color'] = array(
       '#type' => 'details',
       '#title' => t('Color scheme'),
+      '#open' => TRUE,
       '#weight' => -1,
       '#attributes' => array('id' => 'color_scheme_form'),
       '#theme' => 'color_scheme_form',

core/modules/comment/lib/Drupal/comment/CommentFormController.php

@@ -118,7 +118,6 @@ public function form(array $form, array &$form_state) {
       $form['author'] += array(
         '#type' => 'details',
         '#title' => $this->t('Administration'),
-        '#collapsed' => TRUE,
       );
     }
 

core/modules/comment/lib/Drupal/comment/Form/CommentAdminOverview.php

@@ -119,6 +119,7 @@ public function buildForm(array $form, array &$form_state, $type = 'new') {
     $form['options'] = array(
       '#type' => 'details',
       '#title' => $this->t('Update options'),
+      '#open' => TRUE,
       '#attributes' => array('class' => array('container-inline')),
     );
 

core/modules/comment/lib/Drupal/comment/Plugin/Field/FieldType/CommentItem.php

@@ -92,8 +92,7 @@ public function instanceSettingsForm(array $form, array &$form_state) {
     $element['comment'] = array(
       '#type' => 'details',
       '#title' => t('Comment form settings'),
-      '#collapsible' => TRUE,
-      '#collapsed' => FALSE,
+      '#open' => TRUE,
       '#bundle' => "{$entity_type}__{$field_name}",
       '#process' => array(array(get_class($this), 'processSettingsElement')),
       '#attributes' => array(

core/modules/comment/lib/Drupal/comment/Plugin/Field/FieldWidget/CommentWidget.php

@@ -68,9 +68,9 @@ public function formElement(FieldItemListInterface $items, $delta, array $elemen
     if (isset($form['advanced'])) {
       $element += array(
         '#type' => 'details',
-        // Collapse this field when the selected value is the same as stored in
+        // Open the details when the selected value is different to the stored
         // default values for the field instance.
-        '#collapsed' => ($items->status == $field_default_values[0]['status']),
+        '#open' => ($items->status != $field_default_values[0]['status']),
         '#group' => 'advanced',
         '#attributes' => array(
           'class' => array('comment-' . drupal_html_class($element['#entity_type']) . '-settings-form'),

core/modules/config_translation/lib/Drupal/config_translation/Form/ConfigTranslationFormBase.php

@@ -293,8 +293,7 @@ protected function buildConfigForm(Element $schema, $config_data, $base_config_d
           $build[$key] = array(
             '#type' => 'details',
             '#title' => (!empty($title) ? (strip_tags($title) . ' ') : '') . $this->t($definition['label']),
-            '#collapsible' => TRUE,
-            '#collapsed' => $collapsed,
+            '#open' => !$collapsed,
           ) + $sub_build;
         }
       }

core/modules/contact/contact.module

@@ -224,6 +224,7 @@ function contact_form_user_form_alter(&$form, &$form_state) {
   $form['contact'] = array(
     '#type' => 'details',
     '#title' => t('Contact settings'),
+    '#open' => TRUE,
     '#weight' => 5,
   );
   $account = $form_state['controller']->getEntity();
@@ -258,6 +259,7 @@ function contact_form_user_admin_settings_alter(&$form, &$form_state) {
   $form['contact'] = array(
     '#type' => 'details',
     '#title' => t('Contact settings'),
+    '#open' => TRUE,
     '#weight' => 0,
   );
   $form['contact']['contact_default_status'] = array(

core/modules/content_translation/lib/Drupal/content_translation/ContentTranslationController.php

@@ -112,7 +112,6 @@ public function entityFormAlter(array &$form, array &$form_state, EntityInterfac
       $form['source_langcode'] = array(
         '#type' => 'details',
         '#title' => t('Source language: @language', array('@language' => $languages[$source_langcode]->name)),
-        '#collapsed' => TRUE,
         '#tree' => TRUE,
         '#weight' => -100,
         '#multilingual' => TRUE,
@@ -182,7 +181,6 @@ public function entityFormAlter(array &$form, array &$form_state, EntityInterfac
       $form['content_translation'] = array(
         '#type' => 'details',
         '#title' => t('Translation'),
-        '#collapsed' => TRUE,
         '#tree' => TRUE,
         '#weight' => 10,
         '#access' => $this->getTranslationAccess($entity, $source_langcode ? 'create' : 'update'),

core/modules/dblog/lib/Drupal/dblog/Form/DblogClearLogForm.php

@@ -57,7 +57,6 @@ public function buildForm(array $form, array &$form_state) {
       '#type' => 'details',
       '#title' => $this->t('Clear log messages'),
       '#description' => $this->t('This will permanently remove the log messages from the database.'),
-      '#collapsed' => TRUE,
     );
     $form['dblog_clear']['clear'] = array(
       '#type' => 'submit',

core/modules/dblog/lib/Drupal/dblog/Form/DblogFilterForm.php

@@ -30,7 +30,7 @@ public function buildForm(array $form, array &$form_state) {
     $form['filters'] = array(
       '#type' => 'details',
       '#title' => $this->t('Filter log messages'),
-      '#collapsed' => empty($_SESSION['dblog_overview_filter']),
+      '#open' => !empty($_SESSION['dblog_overview_filter']),
     );
     foreach ($filters as $key => $filter) {
       $form['filters']['status'][$key] = array(

core/modules/entity_reference/lib/Drupal/entity_reference/ConfigurableEntityReferenceItem.php

@@ -186,6 +186,7 @@ public function instanceSettingsForm(array $form, array &$form_state) {
     $form['handler'] = array(
       '#type' => 'details',
       '#title' => t('Reference type'),
+      '#open' => TRUE,
       '#tree' => TRUE,
       '#process' => array('_entity_reference_form_process_merge_parent'),
     );

core/modules/field/lib/Drupal/field/Plugin/views/field/Field.php

@@ -478,7 +478,6 @@ function multiple_options_form(&$form, &$form_state) {
     $form['multiple_field_settings'] = array(
       '#type' => 'details',
       '#title' => t('Multiple field settings'),
-      '#collapsed' => TRUE,
       '#weight' => 5,
     );
 

core/modules/field/tests/modules/field_test/field_test.entity.inc

@@ -60,6 +60,7 @@ function field_test_entity_nested_form($form, &$form_state, EntityInterface $ent
   $form['entity_2'] = array(
     '#type' => 'details',
     '#title' => t('Second entity'),
+    '#open' => TRUE,
     '#tree' => TRUE,
     '#parents' => array('entity_2'),
     '#weight' => 50,

core/modules/field_ui/lib/Drupal/field_ui/DisplayOverviewBase.php

@@ -186,7 +186,6 @@ public function buildForm(array $form, array &$form_state, $entity_type_id = NUL
         $form['modes'] = array(
           '#type' => 'details',
           '#title' => $this->t('Custom display settings'),
-          '#collapsed' => TRUE,
         );
         // Collect options and default values for the 'Custom display settings'
         // checkboxes.

core/modules/field_ui/lib/Drupal/field_ui/Form/FieldInstanceEditForm.php

@@ -142,6 +142,7 @@ public function buildForm(array $form, array &$form_state, FieldInstanceConfigIn
       $element += array(
         '#type' => 'details',
         '#title' => $this->t('Default value'),
+        '#open' => TRUE,
         '#description' => $this->t('The default value for this field, used when creating new content.'),
       );
       $form['instance']['default_value'] = $element;

core/modules/file/lib/Drupal/file/Plugin/Field/FieldWidget/FileWidget.php

@@ -145,6 +145,7 @@ protected function formMultipleElements(FieldItemListInterface $items, array &$f
       // building up the full list (like draggable table rows).
       $elements['#file_upload_delta'] = $delta;
       $elements['#type'] = 'details';
+      $elements['#open'] = TRUE;
       $elements['#theme'] = 'file_widget_multiple';
       $elements['#theme_wrappers'] = array('details');
       $elements['#process'] = array(array(get_class($this), 'processMultiple'));

core/modules/filter/lib/Drupal/filter/FilterFormatFormControllerBase.php

@@ -190,6 +190,7 @@ public function form(array $form, array &$form_state) {
         $form['filters']['settings'][$name] = array(
           '#type' => 'details',
           '#title' => $filter->getLabel(),
+          '#open' => TRUE,
           '#weight' => $filter->weight,
           '#parents' => array('filters', $name, 'settings'),
           '#group' => 'filter_settings',

core/modules/language/lib/Drupal/language/Form/NegotiationBrowserForm.php

@@ -107,7 +107,6 @@ public function buildForm(array $form, array &$form_state) {
     $form['new_mapping'] = array(
       '#type' => 'details',
       '#title' => $this->t('Add a new mapping'),
-      '#collapsed' => TRUE,
       '#tree' => TRUE,
     );
     $form['new_mapping']['browser_langcode'] = array(

core/modules/language/lib/Drupal/language/Form/NegotiationUrlForm.php

@@ -43,6 +43,7 @@ public function buildForm(array $form, array &$form_state) {
       '#type' => 'details',
       '#tree' => TRUE,
       '#title' => t('Path prefix configuration'),
+      '#open' => TRUE,
       '#description' => t('Language codes or other custom text to use as a path prefix for URL language detection. For the default language, this value may be left blank. <strong>Modifying this value may break existing URLs. Use with caution in a production environment.</strong> Example: Specifying "deutsch" as the path prefix code for German results in URLs like "example.com/deutsch/contact".'),
       '#states' => array(
         'visible' => array(
@@ -56,6 +57,7 @@ public function buildForm(array $form, array &$form_state) {
       '#type' => 'details',
       '#tree' => TRUE,
       '#title' => t('Domain configuration'),
+      '#open' => TRUE,
       '#description' => t('The domain names to use for these languages. Leave blank for the default language. Use with caution in a production environment.<strong>Modifying this value may break existing URLs. Use with caution in a production environment.</strong> Example: Specifying "de.example.com" as language domain for German will result in an URL like "http://de.example.com/contact".'),
       '#states' => array(
         'visible' => array(

core/modules/locale/lib/Drupal/locale/Form/TranslateFilterForm.php

@@ -33,7 +33,7 @@ public function buildForm(array $form, array &$form_state) {
     $form['filters'] = array(
       '#type' => 'details',
       '#title' => $this->t('Filter translatable strings'),
-      '#collapsed' => FALSE,
+      '#open' => TRUE,
     );
     foreach ($filters as $key => $filter) {
       // Special case for 'string' filter.

core/modules/locale/locale.bulk.inc

@@ -190,7 +190,6 @@ function locale_translate_export_form($form, &$form_state) {
     $form['content_options'] = array(
       '#type' => 'details',
       '#title' => t('Export options'),
-      '#collapsed' => TRUE,
       '#tree' => TRUE,
       '#states' => array(
         'invisible' => array(

core/modules/menu/lib/Drupal/menu/MenuFormController.php

@@ -113,6 +113,7 @@ public function form(array $form, array &$form_state) {
       $form['default_menu_links_language'] = array(
         '#type' => 'details',
         '#title' => t('Menu links language'),
+        '#open' => TRUE,
       );
       $form['default_menu_links_language']['default_language'] = array(
         '#type' => 'language_configuration',

core/modules/menu/menu.module

@@ -474,7 +474,7 @@ function menu_form_node_form_alter(&$form, $form_state) {
     '#type' => 'details',
     '#title' => t('Menu settings'),
     '#access' => \Drupal::currentUser()->hasPermission('administer menu'),
-    '#collapsed' => !$link['link_title'],
+    '#open' => !empty($link['link_title']),
     '#group' => 'advanced',
     '#attached' => array(
       'library' => array(array('menu', 'drupal.menu')),
@@ -593,7 +593,6 @@ function menu_form_node_type_form_alter(&$form, $form_state) {
   $form['menu'] = array(
     '#type' => 'details',
     '#title' => t('Menu settings'),
-    '#collapsed' => TRUE,
     '#attached' => array(
       'library' => array(array('menu', 'drupal.menu.admin')),
     ),

core/modules/node/lib/Drupal/node/NodeFormController.php

@@ -108,8 +108,8 @@ public function form(array $form, array &$form_state) {
       '#type' => 'details',
       '#group' => 'advanced',
       '#title' => t('Revision information'),
-      // Collapsed by default when "Create new revision" is unchecked.
-      '#collapsed' => !$node->isNewRevision(),
+      // Open by default when "Create new revision" is checked.
+      '#open' => $node->isNewRevision(),
       '#attributes' => array(
         'class' => array('node-form-revision-information'),
       ),
@@ -147,7 +147,6 @@ public function form(array $form, array &$form_state) {
     $form['author'] = array(
       '#type' => 'details',
       '#title' => t('Authoring information'),
-      '#collapsed' => TRUE,
       '#group' => 'advanced',
       '#attributes' => array(
         'class' => array('node-form-author'),
@@ -190,7 +189,6 @@ public function form(array $form, array &$form_state) {
     $form['options'] = array(
       '#type' => 'details',
       '#title' => t('Promotion options'),
-      '#collapsed' => TRUE,
       '#group' => 'advanced',
       '#attributes' => array(
         'class' => array('node-form-options'),

core/modules/node/lib/Drupal/node/NodeTypeFormController.php

@@ -74,6 +74,7 @@ public function form(array $form, array &$form_state) {
       '#type' => 'details',
       '#title' => t('Submission form settings'),
       '#group' => 'additional_settings',
+      '#open' => TRUE,
     );
     $form['submission']['title_label'] = array(
       '#title' => t('Title field label'),
@@ -108,7 +109,6 @@ public function form(array $form, array &$form_state) {
     $form['workflow'] = array(
       '#type' => 'details',
       '#title' => t('Publishing options'),
-      '#collapsed' => TRUE,
       '#group' => 'additional_settings',
     );
     $form['workflow']['options'] = array('#type' => 'checkboxes',
@@ -127,7 +127,6 @@ public function form(array $form, array &$form_state) {
       $form['language'] = array(
         '#type' => 'details',
         '#title' => t('Language settings'),
-        '#collapsed' => TRUE,
         '#group' => 'additional_settings',
       );
 
@@ -144,7 +143,6 @@ public function form(array $form, array &$form_state) {
     $form['display'] = array(
       '#type' => 'details',
       '#title' => t('Display settings'),
-      '#collapsed' => TRUE,
       '#group' => 'additional_settings',
     );
     $form['display']['submitted'] = array(

core/modules/node/lib/Drupal/node/Plugin/Search/NodeSearch.php

@@ -379,14 +379,12 @@ public function searchFormAlter(array &$form, array &$form_state) {
     $form['advanced'] = array(
       '#type' => 'details',
       '#title' => t('Advanced search'),
-      '#collapsed' => TRUE,
       '#attributes' => array('class' => array('search-advanced')),
       '#access' => $this->account && $this->account->hasPermission('use advanced search'),
     );
     $form['advanced']['keywords-fieldset'] = array(
       '#type' => 'fieldset',
       '#title' => t('Keywords'),
-      '#collapsible' => FALSE,
     );
     $form['advanced']['keywords'] = array(
       '#prefix' => '<div class="criterion">',
@@ -416,7 +414,6 @@ public function searchFormAlter(array &$form, array &$form_state) {
     $form['advanced']['types-fieldset'] = array(
       '#type' => 'fieldset',
       '#title' => t('Types'),
-      '#collapsible' => FALSE,
     );
     $form['advanced']['types-fieldset']['type'] = array(
       '#type' => 'checkboxes',
@@ -443,8 +440,6 @@ public function searchFormAlter(array &$form, array &$form_state) {
       $form['advanced']['lang-fieldset'] = array(
         '#type' => 'fieldset',
         '#title' => t('Languages'),
-        '#collapsible' => FALSE,
-        '#collapsed' => FALSE,
       );
       $form['advanced']['lang-fieldset']['language'] = array(
         '#type' => 'checkboxes',
@@ -556,6 +551,7 @@ public function buildConfigurationForm(array $form, array &$form_state) {
     $form['content_ranking'] = array(
       '#type' => 'details',
       '#title' => t('Content ranking'),
+      '#open' => TRUE,
     );
     $form['content_ranking']['#theme'] = 'node_search_admin';
     $form['content_ranking']['info'] = array(

core/modules/node/node.module

@@ -1070,7 +1070,6 @@ function node_form_block_form_alter(&$form, &$form_state) {
   $form['visibility']['node_type'] = array(
     '#type' => 'details',
     '#title' => t('Content types'),
-    '#collapsed' => TRUE,
     '#group' => 'visibility',
     '#weight' => 5,
   );

core/modules/path/path.admin.inc

@@ -283,8 +283,10 @@ function path_admin_form_submit($form, &$form_state) {
  */
 function path_admin_filter_form($form, &$form_state, $keys = '') {
   $form['#attributes'] = array('class' => array('search-form'));
-  $form['basic'] = array('#type' => 'details',
+  $form['basic'] = array(
+    '#type' => 'details',
     '#title' => t('Filter aliases'),
+    '#open' => TRUE,
     '#attributes' => array('class' => array('container-inline')),
   );
   $form['basic']['filter'] = array(

core/modules/path/path.module

@@ -97,7 +97,7 @@ function path_form_node_form_alter(&$form, $form_state) {
   $form['path'] = array(
     '#type' => 'details',
     '#title' => t('URL path settings'),
-    '#collapsed' => empty($path['alias']),
+    '#open' => !empty($path['alias']),
     '#group' => 'advanced',
     '#attributes' => array(
       'class' => array('path-form'),

core/modules/search/lib/Drupal/search/SearchPageListController.php

@@ -158,6 +158,7 @@ public function buildForm(array $form, array &$form_state) {
     $form['status'] = array(
       '#type' => 'details',
       '#title' => $this->t('Indexing status'),
+      '#open' => TRUE,
     );
     $form['status']['status'] = array('#markup' => $status);
     $form['status']['wipe'] = array(
@@ -171,7 +172,8 @@ public function buildForm(array $form, array &$form_state) {
     // Indexing throttle:
     $form['indexing_throttle'] = array(
       '#type' => 'details',
-      '#title' => $this->t('Indexing throttle')
+      '#title' => $this->t('Indexing throttle'),
+      '#open' => TRUE,
     );
     $form['indexing_throttle']['cron_limit'] = array(
       '#type' => 'select',
@@ -183,7 +185,8 @@ public function buildForm(array $form, array &$form_state) {
     // Indexing settings:
     $form['indexing_settings'] = array(
       '#type' => 'details',
-      '#title' => $this->t('Indexing settings')
+      '#title' => $this->t('Indexing settings'),
+      '#open' => TRUE,
     );