+ // Test the "Replace" button functionality.
+ $form_display->setComponent('field_entity_reference1', [
+ 'type' => 'entity_browser_entity_reference',
+ 'settings' => [
+ 'entity_browser' => 'test_entity_browser_iframe_node_view',
+ 'open' => TRUE,
+ 'field_widget_edit' => TRUE,
+ 'field_widget_remove' => TRUE,
+ 'field_widget_replace' => TRUE,
+ 'selection_mode' => EntityBrowserElement::SELECTION_MODE_APPEND,
+ 'field_widget_display' => 'label',
+ 'field_widget_display_settings' => [],
+ ],
+ ])->save();
+ // In order to ensure the replace button opens the browser, it needs to be
+ // closed.
+ /** @var \Drupal\entity_browser\EntityBrowserInterface $browser */
+ $browser = $this->container->get('entity_type.manager')
+ ->getStorage('entity_browser')
+ ->load('test_entity_browser_iframe_node_view');
+ $browser->getDisplay()
+ ->setConfiguration([
+ 'width' => 650,
+ 'height' => 500,
+ 'link_text' => 'Select entities',
+ 'auto_open' => FALSE,
+ ]);
+ $browser->save();
+ // We'll need a third node to be able to make a new selection.
+ $target_node2 = Node::create([
+ 'title' => 'Target example node 2',
+ 'type' => 'article',
+ ]);
+ $target_node2->save();
+ $this->drupalGet('node/' . $nid . '/edit');
+ // If there is only one entity in the current selection the button should
+ // show up.
+ $replace_button = $assert_session->buttonExists('edit-field-entity-reference1-current-items-0-replace-button');
+ $this->assertEquals('Replace', $replace_button->getValue());
+ $this->assertTrue($replace_button->hasClass('replace-button'));
+ // Clicking on the button should empty the selection and automatically
+ // open the browser again.
+ $replace_button->click();
+ $this->waitForAjaxToFinish();
+ $session->switchToIFrame('entity_browser_iframe_test_entity_browser_iframe_node_view');
+ $this->waitForAjaxToFinish();
+ $page->checkField('edit-entity-browser-select-node3');
+ $page->pressButton('Select entities');
+ $session->wait(1000);
+ $session->switchToIFrame();
+ $this->waitForAjaxToFinish();
+ // Even in the AJAX-built markup for the newly selected element, the replace
+ // button should be there.
+ $assert_session->elementExists('css', 'input[data-drupal-selector="edit-field-entity-reference1-current-items-0-replace-button"]');
+ // Adding a new node to the selection, however, should make it disappear.
+ $open_iframe_link = $assert_session->elementExists('css', 'a[data-drupal-selector="edit-field-entity-reference1-entity-browser-entity-browser-link"]');
+ $open_iframe_link->click();
+ $this->waitForAjaxToFinish();
+ $session->switchToIFrame('entity_browser_iframe_test_entity_browser_iframe_node_view');
+ $this->waitForAjaxToFinish();
+ $page->checkField('edit-entity-browser-select-node1');
+ $page->pressButton('Select entities');
+ $session->wait(1000);
+ $session->switchToIFrame();
+ $this->waitForAjaxToFinish();
+ $assert_session->elementNotExists('css', 'input[data-drupal-selector="edit-field-entity-reference1-current-items-0-replace-button"]');
+ $page->pressButton('Save');
+ $assert_session->pageTextContains('Article Referencing node 1 has been updated.');
+
+ // Test the replace button again with different field cardinalities.
+ FieldStorageConfig::load('node.field_entity_reference1')->setCardinality(1)->save();
+ $this->drupalGet('/node/add/article');
+ $page->fillField('title[0][value]', 'Referencing node 2');
+ $open_iframe_link = $assert_session->elementExists('css', 'a[data-drupal-selector="edit-field-entity-reference1-entity-browser-entity-browser-link"]');
+ $open_iframe_link->click();
+ $this->waitForAjaxToFinish();
+ $session->switchToIFrame('entity_browser_iframe_test_entity_browser_iframe_node_view');
+ $this->waitForAjaxToFinish();
+ $page->checkField('edit-entity-browser-select-node1');
+ $page->pressButton('Select entities');
+ $session->wait(1000);
+ $session->switchToIFrame();
+ $this->waitForAjaxToFinish();
+ $assert_session->elementContains('css', '#edit-field-entity-reference1-wrapper', 'Target example node 1');
+ // All three buttons should be visible.
+ $assert_session->elementExists('css', 'input[data-drupal-selector="edit-field-entity-reference1-current-items-0-remove-button"]');
+ $assert_session->elementExists('css', 'input[data-drupal-selector="edit-field-entity-reference1-current-items-0-edit-button"]');
+ $replace_button = $assert_session->elementExists('css', 'input[data-drupal-selector="edit-field-entity-reference1-current-items-0-replace-button"]');
+ // Clicking on the button should empty the selection and automatically
+ // open the browser again.
+ $replace_button->click();
+ $this->waitForAjaxToFinish();
+ $session->switchToIFrame('entity_browser_iframe_test_entity_browser_iframe_node_view');
+ $this->waitForAjaxToFinish();
+ $page->checkField('edit-entity-browser-select-node2');
+ $page->pressButton('Select entities');
+ $session->wait(1000);
+ $session->switchToIFrame();
+ $this->waitForAjaxToFinish();
+ $assert_session->elementContains('css', '#edit-field-entity-reference1-wrapper', 'Referencing node 1');
+
+ // Do the same as above but now with cardinality 2.
+ FieldStorageConfig::load('node.field_entity_reference1')->setCardinality(2)->save();
+ $this->drupalGet('/node/add/article');
+ $page->fillField('title[0][value]', 'Referencing node 3');
+ $open_iframe_link = $assert_session->elementExists('css', 'a[data-drupal-selector="edit-field-entity-reference1-entity-browser-entity-browser-link"]');
+ $open_iframe_link->click();
+ $this->waitForAjaxToFinish();
+ $session->switchToIFrame('entity_browser_iframe_test_entity_browser_iframe_node_view');
+ $this->waitForAjaxToFinish();
+ $page->checkField('edit-entity-browser-select-node1');
+ $page->pressButton('Select entities');
+ $session->wait(1000);
+ $session->switchToIFrame();
+ $this->waitForAjaxToFinish();
+ $assert_session->elementContains('css', '#edit-field-entity-reference1-wrapper', 'Target example node 1');
+ // All three buttons should be visible.
+ $assert_session->elementExists('css', 'input[data-drupal-selector="edit-field-entity-reference1-current-items-0-remove-button"]');
+ $assert_session->elementExists('css', 'input[data-drupal-selector="edit-field-entity-reference1-current-items-0-edit-button"]');
+ $replace_button = $assert_session->elementExists('css', 'input[data-drupal-selector="edit-field-entity-reference1-current-items-0-replace-button"]');
+ // Clicking on the button should empty the selection and automatically
+ // open the browser again.
+ $replace_button->click();
+ $this->waitForAjaxToFinish();
+ $session->switchToIFrame('entity_browser_iframe_test_entity_browser_iframe_node_view');
+ $this->waitForAjaxToFinish();
+ $page->checkField('edit-entity-browser-select-node2');
+ $page->pressButton('Select entities');
+ $session->wait(1000);
+ $session->switchToIFrame();
+ $this->waitForAjaxToFinish();
+ $assert_session->elementContains('css', '#edit-field-entity-reference1-wrapper', 'Referencing node 1');
+