class ManageDisplayTest

class ManageDisplayTest extends WebDriverTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'node',
        'field_ui',
        'field_test',
        'field_third_party_test',
        'block',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * @var string
     */
    protected $type;
    
    /**
     * @var \Drupal\Core\Entity\EntityTypeManagerInterface
     */
    protected $entity_type_manager;
    
    /**
     * @var \Drupal\Core\Entity\EntityStorageInterface
     */
    protected $display_storage;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->drupalPlaceBlock('system_breadcrumb_block');
        // Create a test user.
        $admin_user = $this->drupalCreateUser([
            'access content',
            'administer content types',
            'administer node fields',
            'administer node form display',
            'administer node display',
            'administer users',
            'administer account settings',
            'administer user display',
            'bypass node access',
        ]);
        $this->drupalLogin($admin_user);
        // Create content type, with underscores.
        $type_name = strtolower($this->randomMachineName(8)) . '_test';
        $type = $this->drupalCreateContentType([
            'name' => $type_name,
            'type' => $type_name,
        ]);
        $this->type = $type->id();
        $this->entity_type_manager = $this->container
            ->get('entity_type.manager');
    }
    
    /**
     * Tests formatter settings.
     */
    public function testFormatterUI() {
        $manage_fields = 'admin/structure/types/manage/' . $this->type;
        $manage_display = $manage_fields . '/display';
        // Create a field, and a node with some data for the field.
        $this->fieldUIAddNewField($manage_fields, 'test', 'Test field');
        $display_id = 'node.' . $this->type . '.default';
        $display_storage = $this->entity_type_manager
            ->getStorage('entity_view_display');
        // Get the display options (formatter and settings) that were automatically
        // assigned for the 'default' display.
        
        /** @var \Drupal\Core\Entity\Display\EntityViewDisplayInterface $display */
        $display = $display_storage->loadUnchanged($display_id);
        $display_options = $display->getComponent('field_test');
        $format = $display_options['type'];
        $default_settings = \Drupal::service('plugin.manager.field.formatter')->getDefaultSettings($format);
        $setting_name = key($default_settings);
        $setting_value = $display_options['settings'][$setting_name];
        // Display the "Manage display" screen and check that the expected formatter
        // is selected.
        $this->drupalGet($manage_display);
        $session = $this->getSession();
        $assert_session = $this->assertSession();
        $page = $session->getPage();
        // Find commonly used elements in this test.
        $button_save = $page->findButton('Save');
        $field_test_format_type = $page->findField('fields[field_test][type]');
        $field_test_drag_handle = $page->find('css', '#field-test .tabledrag-handle');
        $field_test_settings = $page->find('css', 'input[name="field_test_settings_edit"]');
        $weight_toggle = $page->find('css', '.tabledrag-toggle-weight');
        // Assert the format type field is visible and contains the expected
        // formatter.
        $this->assertTrue($field_test_format_type->isVisible());
        $this->assertEquals($format, $field_test_format_type->getValue());
        $assert_session->responseContains("{$setting_name}: {$setting_value}");
        // Validate the selectbox.
        $this->assertFieldSelectOptions($field_test_format_type, [
            'field_no_settings',
            'field_empty_test',
            'field_empty_setting',
            'field_test_default',
            'field_test_multiple',
            'field_test_with_prepare_view',
            'field_test_applicable',
        ]);
        // Ensure that fields can be hidden directly by dragging the element.
        $target = $page->find('css', '.region-hidden-message');
        $field_test_drag_handle->dragTo($target);
        $assert_session->assertWaitOnAjaxRequest();
        $button_save->click();
        // Validate the changed display settings on the server.
        
        /** @var \Drupal\Core\Entity\Display\EntityViewDisplayInterface $display */
        $display = $display_storage->loadUnchanged($display_id);
        $this->assertNull($display->getComponent('field_test'));
        // Switch to manual mode.
        $weight_toggle->click();
        $field_region = $page->findField('fields[field_test][region]');
        // Change the region to content using the region field.
        $this->assertEquals('hidden', $field_region->getValue());
        $field_region->setValue('content');
        $assert_session->assertWaitOnAjaxRequest();
        // Confirm the region element retains focus after the AJAX update completes.
        $this->assertJsCondition('document.activeElement === document.querySelector("[name=\'fields[field_test][region]\']")');
        $button_save->click();
        // Change the format for the test field.
        $field_test_format_type->setValue('field_test_multiple');
        $assert_session->assertWaitOnAjaxRequest();
        // Confirm the format element retains focus after the AJAX update completes.
        $this->assertJsCondition('document.activeElement === document.querySelector("[name=\'fields[field_test][type]\']")');
        $plugin_summary = $page->find('css', '#field-test .field-plugin-summary');
        $this->assertStringContainsString("test_formatter_setting_multiple: dummy test string", $plugin_summary->getText(), 'The expected summary is displayed.');
        // Submit the form and assert that
        // hook_field_formatter_settings_summary_alter() is called.
        $button_save->click();
        $assert_session->responseContains('field_test_field_formatter_settings_summary_alter');
        // Open the settings form for the test field.
        $field_test_settings->click();
        $assert_session->assertWaitOnAjaxRequest();
        // Assert that the field added in
        // field_test_field_formatter_third_party_settings_form() is present.
        $field_third_party = $page->findField('fields[field_test][settings_edit_form][third_party_settings][field_third_party_test][field_test_field_formatter_third_party_settings_form]');
        $this->assertNotEmpty($field_third_party, 'The field added in hook_field_formatter_third_party_settings_form() is present on the settings form.');
        // Change the value and submit the form to save the third party settings.
        $field_third_party->setValue('foo');
        $page->findButton('Update')
            ->click();
        $assert_session->assertWaitOnAjaxRequest();
        $button_save->click();
        // Assert the third party settings.
        \Drupal::service('entity_field.manager')->clearCachedFieldDefinitions();
        $this->drupalGet($manage_display);
        $id = 'node.' . $this->type . '.default';
        
        /** @var \Drupal\Core\Entity\Display\EntityViewDisplayInterface $display */
        $display = $display_storage->loadUnchanged($id);
        $this->assertEquals('foo', $display->getRenderer('field_test')
            ->getThirdPartySetting('field_third_party_test', 'field_test_field_formatter_third_party_settings_form'));
        $this->assertContains('field_third_party_test', $display->calculateDependencies()
            ->getDependencies()['module'], 'The display has a dependency on field_third_party_test module.');
        // Change the formatter to an empty setting and validate it's initialized
        // correctly.
        $field_test_format_type = $page->findField('fields[field_test][type]');
        $field_test_format_type->setValue('field_empty_setting');
        $assert_session->assertWaitOnAjaxRequest();
        $assert_session->responseNotContains('Default empty setting now has a value.');
        $this->assertTrue($field_test_settings->isVisible(), TRUE);
        // Set the empty_setting option to a non-empty value again and validate
        // the formatting summary now display's this correctly.
        $field_test_settings->click();
        $assert_session->assertWaitOnAjaxRequest();
        $field_empty_setting = $page->findField('fields[field_test][settings_edit_form][settings][field_empty_setting]');
        $field_empty_setting->setValue('non empty setting');
        $page->findButton('Update')
            ->click();
        $assert_session->assertWaitOnAjaxRequest();
        $assert_session->responseContains('Default empty setting now has a value.');
        // Test the settings form behavior. An edit button should be present since
        // there are third party settings to configure.
        $field_test_format_type->setValue('field_no_settings');
        $assert_session->assertWaitOnAjaxRequest();
        $this->assertTrue($field_test_settings->isVisible());
        // Make sure we can save the third party settings when there are no settings
        // available.
        $field_test_settings->click();
        $assert_session->assertWaitOnAjaxRequest();
        $page->findButton('Update')
            ->click();
        $assert_session->assertWaitOnAjaxRequest();
        // When a module providing third-party settings to a formatter (or widget)
        // is uninstalled, the formatter remains enabled but the provided settings,
        // together with the corresponding form elements, are removed from the
        // display component.
        \Drupal::service('module_installer')->uninstall([
            'field_third_party_test',
        ]);
        // Ensure the button is still there after the module has been disabled.
        $this->drupalGet($manage_display);
        $this->assertTrue($field_test_settings->isVisible(), TRUE);
        // Ensure that third-party form elements are not present anymore.
        $field_test_settings->click();
        $assert_session->assertWaitOnAjaxRequest();
        $field_third_party = $page->findField('fields[field_test][settings_edit_form][third_party_settings][field_third_party_test][field_test_field_formatter_third_party_settings_form]');
        $this->assertEmpty($field_third_party);
        // Ensure that third-party settings were removed from the formatter.
        
        /** @var \Drupal\Core\Entity\Display\EntityViewDisplayInterface $display */
        $display = $display_storage->loadUnchanged($display_id);
        $component = $display->getComponent('field_test');
        $this->assertArrayNotHasKey('field_third_party_test', $component['third_party_settings']);
    }
    
    /**
     * Tests widget settings.
     */
    public function testWidgetUI() {
        // Admin Manage Fields page.
        $manage_fields = 'admin/structure/types/manage/' . $this->type;
        // Admin Manage Display page.
        $manage_display = $manage_fields . '/form-display';
        $form_storage = $this->entity_type_manager
            ->getStorage('entity_form_display');
        // Creates a new field that can be used with multiple formatters.
        // Reference: Drupal\field_test\Plugin\Field\FieldWidget\TestFieldWidgetMultiple::isApplicable().
        $this->fieldUIAddNewField($manage_fields, 'test', 'Test field');
        // Get the display options (formatter and settings) that were automatically
        // assigned for the 'default' display.
        
        /** @var \Drupal\Core\Entity\Display\EntityFormDisplayInterface $display */
        $display = $form_storage->loadUnchanged("node.{$this->type}.default");
        $display_options = $display->getComponent('field_test');
        $widget_type = $display_options['type'];
        $default_settings = \Drupal::service('plugin.manager.field.widget')->getDefaultSettings($widget_type);
        $setting_name = key($default_settings);
        $setting_value = $display_options['settings'][$setting_name];
        // Display the "Manage form display" screen and check if the expected
        // widget is selected.
        $this->drupalGet($manage_display);
        $session = $this->getSession();
        $assert_session = $this->assertSession();
        $page = $session->getPage();
        $field_test_settings = $page->find('css', 'input[name="field_test_settings_edit"]');
        $field_test_type = $page->findField('fields[field_test][type]');
        $button_save = $page->findButton('Save');
        $this->assertEquals($widget_type, $field_test_type->getValue(), 'The expected widget is selected.');
        $assert_session->responseContains("{$setting_name}: {$setting_value}");
        // Check whether widget weights are respected.
        $this->assertFieldSelectOptions($field_test_type, [
            'test_field_widget',
            'test_field_widget_multilingual',
            'test_field_widget_multiple',
        ]);
        $field_test_type->setValue('test_field_widget_multiple');
        $assert_session->assertWaitOnAjaxRequest();
        $button_save->click();
        $this->drupalGet($manage_display);
        $widget_type = 'test_field_widget_multiple';
        $default_settings = \Drupal::service('plugin.manager.field.widget')->getDefaultSettings($widget_type);
        $setting_name = key($default_settings);
        $setting_value = $default_settings[$setting_name];
        $this->assertEquals($widget_type, $field_test_type->getValue(), 'The expected widget is selected.');
        $assert_session->responseContains("{$setting_name}: {$setting_value}");
        $button_save->click();
        
        /** @var \Drupal\Core\Entity\Display\EntityFormDisplayInterface $display */
        $display = $form_storage->loadUnchanged("node.{$this->type}.default");
        $display_options = $display->getComponent('field_test');
        $current_widget = $display_options['type'];
        $current_setting_value = $display_options['settings'][$setting_name];
        $this->assertEquals($current_widget, $widget_type, 'The widget was updated.');
        $this->assertEquals($current_setting_value, $setting_value, 'The setting was updated.');
        // Assert that hook_field_widget_settings_summary_alter() is called.
        $assert_session->responseContains('field_test_field_widget_settings_summary_alter');
        $field_test_settings->click();
        $assert_session->assertWaitOnAjaxRequest();
        // Assert that the field added in
        // field_test_field_widget_third_party_settings_form() is present.
        $field_third_party_test = $page->findField('fields[field_test][settings_edit_form][third_party_settings][field_third_party_test][field_test_widget_third_party_settings_form]');
        $this->assertNotEmpty($field_third_party_test, 'The field added in hook_field_widget_third_party_settings_form() is present on the settings form.');
        $field_third_party_test->setValue('foo');
        $page->findButton('Update')
            ->click();
        $assert_session->assertWaitOnAjaxRequest();
        $button_save->click();
        $this->drupalGet($manage_display);
        // Assert the third party settings.
        \Drupal::service('entity_field.manager')->clearCachedFieldDefinitions();
        
        /** @var \Drupal\Core\Entity\Display\EntityFormDisplayInterface $display */
        $display = $form_storage->loadUnchanged('node.' . $this->type . '.default');
        $this->assertEquals('foo', $display->getRenderer('field_test')
            ->getThirdPartySetting('field_third_party_test', 'field_test_widget_third_party_settings_form'));
        $this->assertContains('field_third_party_test', $display->calculateDependencies()
            ->getDependencies()['module'], 'Form display does not have a dependency on field_third_party_test module.');
        // Creates a new field that can not be used with the multiple formatter.
        // Reference: Drupal\field_test\Plugin\Field\FieldWidget\TestFieldWidgetMultiple::isApplicable().
        $this->fieldUIAddNewField($manage_fields, 'onewidgetfield', 'One Widget Field');
        // Go to the Manage Form Display.
        $this->drupalGet($manage_display);
        $field_onewidgetfield_type = $page->findField('fields[field_onewidgetfield][type]');
        $field_test_drag_handle = $page->find('css', '#field-test .tabledrag-handle');
        $field_region = $page->findField('fields[field_test][region]');
        $weight_toggle = $page->find('css', '.tabledrag-toggle-weight');
        $target = $page->find('css', '.region-hidden-message');
        // Checks if the select elements contain the specified options.
        $this->assertFieldSelectOptions($field_test_type, [
            'test_field_widget',
            'test_field_widget_multilingual',
            'test_field_widget_multiple',
        ]);
        $this->assertFieldSelectOptions($field_onewidgetfield_type, [
            'test_field_widget',
            'test_field_widget_multilingual',
        ]);
        $field_test_drag_handle->dragTo($target);
        $assert_session->assertWaitOnAjaxRequest();
        $button_save->click();
        // Validate the changed display settings on the server.
        
        /** @var \Drupal\Core\Entity\Display\EntityFormDisplayInterface $display */
        $display = $form_storage->loadUnchanged("node.{$this->type}.default");
        $this->assertNull($display->getComponent('field_test'));
        // Switch to manual mode.
        $weight_toggle->click();
        // Change the region to content using the region field.
        $this->assertEquals('hidden', $field_region->getValue());
        $field_region->setValue('content');
        $assert_session->assertWaitOnAjaxRequest();
        $button_save->click();
        // Validate the change on the server.
        $this->drupalGet($manage_display);
        $display = EntityFormDisplay::load("node.{$this->type}.default");
        $this->assertNotNull($display->getComponent('field_test'));
    }
    
    /**
     * Checks if a select element contains the specified options.
     *
     * @param \Behat\Mink\Element\NodeElement $field
     *   The select field to validate.
     * @param array $expected_options
     *   An array of expected options.
     * @param string|null $selected
     *   The default value to validate.
     *
     * @internal
     */
    protected function assertFieldSelectOptions(NodeElement $field, array $expected_options, ?string $selected = NULL) : void {
        
        /** @var \Behat\Mink\Element\NodeElement[] $select_options */
        $select_options = $field->findAll('xpath', 'option');
        // Validate the number of options.
        $this->assertSameSize($expected_options, $select_options);
        // Validate the options and expected order.
        foreach ($select_options as $key => $option) {
            $this->assertEquals($option->getAttribute('value'), $expected_options[$key]);
        }
        // Validate the default value if passed.
        if (!is_null($selected)) {
            $this->assertEquals($selected, $field->getValue());
        }
    }
    
    /**
     * Creates a new field through the Field UI.
     *
     * @param string $bundle_path
     *   Admin path of the bundle that the new field is to be attached to.
     * @param string $field_name
     *   The field name of the new field storage.
     * @param string $label
     *   (optional) The label of the new field. Defaults to a random string.
     * @param string $field_type
     *   (optional) The field type of the new field storage. Defaults to
     *   'test_field'.
     */
    public function fieldUIAddNewField($bundle_path, $field_name, $label = NULL, $field_type = 'test_field') {
        $label = $label ?: $field_name;
        // Allow the caller to set a NULL path in case they navigated to the right
        // page before calling this method.
        if ($bundle_path !== NULL) {
            $bundle_path = "{$bundle_path}/fields/add-field";
        }
        // First step: 'Add field' page.
        $this->drupalGet($bundle_path);
        $session = $this->getSession();
        $page = $session->getPage();
        $assert_session = $this->assertSession();
        $field_new_storage_type = $page->findField('new_storage_type');
        $field_new_storage_type->setValue($field_type);
        $assert_session->assertWaitOnAjaxRequest();
        $field_label = $page->findField('label');
        $this->assertTrue($field_label->isVisible());
        $field_label->setValue($label);
        $machine_name = $assert_session->waitForElementVisible('css', '[name="label"] + * .machine-name-value');
        $this->assertNotEmpty($machine_name);
        $page->findButton('Edit')
            ->press();
        $field_field_name = $page->findField('field_name');
        $this->assertTrue($field_field_name->isVisible());
        $field_field_name->setValue($field_name);
        $assert_session->assertWaitOnAjaxRequest();
        $page->findButton('Save and continue')
            ->click();
        $assert_session->pageTextContains("These settings apply to the {$label} field everywhere it is used.");
        $breadcrumb_link = $page->findLink($label);
        // Test breadcrumb.
        $this->assertTrue($breadcrumb_link->isVisible());
        // Second step: 'Storage settings' form.
        $page->findButton('Save field settings')
            ->click();
        $assert_session->pageTextContains("Updated field {$label} field settings.");
        // Third step: 'Field settings' form.
        $page->findButton('Save settings')
            ->click();
        $assert_session->pageTextContains("Saved {$label} configuration.");
        // Check that the field appears in the overview form.
        $row = $page->find('css', '#field-' . $field_name);
        $this->assertNotEmpty($row, 'Field was created and appears in the overview page.');
    }

}