Initial Drupal 11 with DDEV setup

web/core/modules/text/config/install/text.settings.yml

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+default_summary_length: 600

web/core/modules/text/config/schema/text.schema.yml

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+# Schema for the configuration files of the text module.
+
+text.settings:
+  type: config_object
+  label: 'Text settings'
+  constraints:
+    FullyValidatable: ~
+  mapping:
+    default_summary_length:
+      type: integer
+      label: 'Default summary length'
+      constraints:
+        NotNull: [ ]
+        Range:
+          min: 1
+
+field.storage_settings.text:
+  type: mapping
+  label: 'Text (formatted) settings'
+  mapping:
+    max_length:
+      type: integer
+      label: 'Maximum length'
+
+field.field_settings.text:
+  type: mapping
+  label: 'Text (formatted) settings'
+  mapping:
+    allowed_formats:
+      type: sequence
+      label: 'Allowed text formats'
+      sequence:
+        type: string
+
+field.value.text:
+  type: mapping
+  label: 'Default value'
+  mapping:
+    value:
+      type: label
+      label: 'Value'
+    format:
+      type: string
+      label: 'Text format'
+
+field.storage_settings.text_long:
+  label: 'Text (formatted, long) settings'
+  type: field.field_settings.text
+
+field.field_settings.text_long:
+  label: 'Text (formatted, long) settings'
+  type: mapping
+  mapping:
+    allowed_formats:
+      type: sequence
+      label: 'Allowed text formats'
+      sequence:
+        type: string
+
+field.value.text_long:
+  type: mapping
+  label: 'Default value'
+  mapping:
+    value:
+      type: text
+      label: 'Value'
+    format:
+      type: string
+      label: 'Text format'
+
+# This field type has no field storage settings, so no specific config schema type.
+# @see `type: field.storage_settings.*`
+field.field_settings.text_with_summary:
+  type: mapping
+  label: 'Text (formatted, long, with summary) settings'
+  mapping:
+    display_summary:
+      type: boolean
+      label: 'Summary input'
+    required_summary:
+      type: boolean
+      label: 'Require summary'
+    allowed_formats:
+      type: sequence
+      label: 'Allowed text formats'
+      sequence:
+        type: string
+
+field.value.text_with_summary:
+  type: mapping
+  label: 'Default value'
+  mapping:
+    value:
+      type: text
+      label: 'Body'
+    summary:
+      type: string
+      label: 'Summary'
+    format:
+      type: string
+      label: 'Text format'
+
+field.formatter.settings.text_default:
+  type: mapping
+  label: 'Formatted text default display format settings'
+
+field.formatter.settings.text_summary_or_trimmed:
+  type: mapping
+  label: 'Summary or trimmed formatted text display format settings'
+  mapping:
+    trim_length:
+      type: integer
+      label: 'Trim length'
+
+field.formatter.settings.text_trimmed:
+  type: mapping
+  label: 'Trimmed text display format settings'
+  mapping:
+    trim_length:
+      type: integer
+      label: 'Trim length'
+
+field.widget.settings.text_textarea:
+  type: mapping
+  label: 'Text area (multiple rows) display format settings'
+  mapping:
+    rows:
+      type: integer
+      label: 'Rows'
+    placeholder:
+      type: label
+      label: 'Placeholder'
+
+field.widget.settings.text_textarea_with_summary:
+  type: mapping
+  label: 'Text area with a summary display format settings'
+  mapping:
+    rows:
+      type: integer
+      label: 'Rows'
+    summary_rows:
+      type: integer
+      label: 'Number of summary rows'
+    placeholder:
+      type: text
+      label: 'Placeholder'
+    show_summary:
+      type: boolean
+      label: 'Always show summary'
+
+field.widget.settings.text_textfield:
+  type: mapping
+  label: 'Text field display format settings'
+  mapping:
+    size:
+      type: integer
+      label: 'Size of textfield'
+    placeholder:
+      type: label
+      label: 'Placeholder'

web/core/modules/text/css/text.icon.theme.css

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+/*
+ * DO NOT EDIT THIS FILE.
+ * See the following change record for more information,
+ * https://www.drupal.org/node/3084859
+ * @preserve
+ */
+.field-icon-formatted_text {
+  background-image: url("data:image/svg+xml,%3csvg height='36' viewBox='0 0 36 36' width='36' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='m21 9.48v1.5h15v-3h-15zm-20.236 1.425c-.388 1.576-.705 2.913-.704 2.972 0 .097.062.105.698.09l.699-.017.459-.99c.567-1.222.894-1.777 1.322-2.241.813-.88 1.883-1.239 3.696-1.239h.579l-.04.165c-.449 1.841-4.58 17.152-4.673 17.32a1.696 1.696 0 0 1 -.362.42l-.231.185-1.104-.017-1.103-.016v1.443h10.5v-.716c0-.696-.004-.716-.135-.738-.074-.012-.676-.01-1.337.005-1.038.022-1.228.012-1.395-.074-.191-.099-.193-.105-.193-.542 0-.641.125-1.135 2.45-9.695l2.095-7.71.892.006c1.115.008 1.444.091 1.871.474.782.703 1.239 1.865 1.362 3.465l.041.525h1.849v-5.94h-16.532zm15.736 7.605v1.47h19.5v-2.94h-19.5zm-3 9v1.47h22.5v-2.94h-22.5z' fill='%2355565b'/%3e%3c/svg%3e");
+}

web/core/modules/text/css/text.icon.theme.pcss.css

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+.field-icon-formatted_text {
+  background-image: url(../../../misc/icons/55565b/formatted_text.svg);
+}

web/core/modules/text/js/text.js

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+/**
+ * @file
+ * Text behaviors.
+ */
+
+(function ($, Drupal) {
+  /**
+   * Auto-hide summary textarea if empty and show hide and unhide links.
+   *
+   * @type {Drupal~behavior}
+   *
+   * @prop {Drupal~behaviorAttach} attach
+   *   Attaches auto-hide behavior on `text-summary` events.
+   */
+  Drupal.behaviors.textSummary = {
+    attach(context, settings) {
+      once('text-summary', '.js-text-summary', context).forEach((summary) => {
+        const $widget = $(summary).closest('.js-text-format-wrapper');
+
+        const $summary = $widget.find('.js-text-summary-wrapper');
+        const $summaryLabel = $summary.find('label').eq(0);
+        const $full = $widget.children('.js-form-type-textarea');
+        let $fullLabel = $full.find('label').eq(0);
+
+        // Create a placeholder label when the field cardinality is greater
+        // than 1.
+        if ($fullLabel.length === 0) {
+          $fullLabel = $('<label></label>').prependTo($full);
+        }
+
+        // To ensure the summary toggle is shown in case the label is hidden
+        // (in multivalue fields in particular), show the label but hide
+        // the original text of the label.
+        if ($fullLabel.hasClass('visually-hidden')) {
+          $fullLabel.html(
+            (index, oldHtml) =>
+              `<span class="visually-hidden">${oldHtml}</span>`,
+          );
+          $fullLabel.removeClass('visually-hidden');
+        }
+
+        // Set up the edit/hide summary link.
+        const $link = $(
+          `<span class="field-edit-link"> (<button type="button" class="link link-edit-summary">${Drupal.t(
+            'Hide summary',
+          )}</button>)</span>`,
+        );
+        const $button = $link.find('button');
+        let toggleClick = true;
+        $link
+          .on('click', (e) => {
+            if (toggleClick) {
+              $summary.hide();
+              $button.html(Drupal.t('Edit summary'));
+              $link.appendTo($fullLabel);
+            } else {
+              $summary.show();
+              $button.html(Drupal.t('Hide summary'));
+              $link.appendTo($summaryLabel);
+            }
+            e.preventDefault();
+            toggleClick = !toggleClick;
+          })
+          .appendTo($summaryLabel);
+
+        // If no summary is set, hide the summary field.
+        if (summary.value === '') {
+          $link.trigger('click');
+        }
+      });
+    },
+  };
+})(jQuery, Drupal);

web/core/modules/text/migrations/state/text.migrate_drupal.yml

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+finished:
+  6:
+    text: text
+  7:
+    text: text

web/core/modules/text/migrations/text_settings.yml

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+id: text_settings
+label: Drupal teaser length configuration
+migration_tags:
+  - Drupal 6
+  - Drupal 7
+  - Configuration
+source:
+  plugin: variable
+  variables:
+    - teaser_length
+  source_module: text
+process:
+  default_summary_length: teaser_length
+destination:
+  plugin: config
+  config_name: text.settings

web/core/modules/text/src/Hook/TextHooks.php

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+<?php
+
+namespace Drupal\text\Hook;
+
+use Drupal\Core\StringTranslation\StringTranslationTrait;
+use Drupal\Core\Url;
+use Drupal\Core\Routing\RouteMatchInterface;
+use Drupal\Core\Hook\Attribute\Hook;
+
+/**
+ * Hook implementations for text.
+ */
+class TextHooks {
+
+  use StringTranslationTrait;
+
+  /**
+   * Implements hook_help().
+   */
+  #[Hook('help')]
+  public function help($route_name, RouteMatchInterface $route_match): ?string {
+    switch ($route_name) {
+      case 'help.page.text':
+        $output = '';
+        $output .= '<h2>' . $this->t('About') . '</h2>';
+        $output .= '<p>' . $this->t('The Text module allows you to create short and long text fields with optional summaries. See the <a href=":field">Field module help</a> and the <a href=":field_ui">Field UI help</a> pages for general information on fields and how to create and manage them. For more information, see the <a href=":text_documentation">online documentation for the Text module</a>.', [
+          ':field' => Url::fromRoute('help.page', [
+            'name' => 'field',
+          ])->toString(),
+          ':field_ui' => \Drupal::moduleHandler()->moduleExists('field_ui') ? Url::fromRoute('help.page', [
+            'name' => 'field_ui',
+          ])->toString() : '#',
+          ':text_documentation' => 'https://www.drupal.org/documentation/modules/text',
+        ]) . '</p>';
+        $output .= '<h2>' . $this->t('Uses') . '</h2>';
+        $output .= '<dl>';
+        $output .= '<dt>' . $this->t('Managing and displaying text fields') . '</dt>';
+        $output .= '<dd>' . $this->t('The <em>settings</em> and <em>display</em> of the text field can be configured separately. See the <a href=":field_ui">Field UI help</a> for more information on how to manage fields and their display.', [
+          ':field_ui' => \Drupal::moduleHandler()->moduleExists('field_ui') ? Url::fromRoute('help.page', [
+            'name' => 'field_ui',
+          ])->toString() : '#',
+        ]) . '</dd>';
+        $output .= '<dt>' . $this->t('Creating short text fields') . '</dt>';
+        $output .= '<dd>' . $this->t('If you choose <em>Text (plain)</em> or <em>Text (formatted)</em> as the field type on the <em>Manage fields</em> page, then a field with a single row is displayed. You can change the maximum text length in the <em>Field settings</em> when you set up the field.') . '</dd>';
+        $output .= '<dt>' . $this->t('Creating long text fields') . '</dt>';
+        $output .= '<dd>' . $this->t('If you choose <em>Text (plain, long)</em>, <em>Text (formatted, long)</em>, or <em>Text (formatted, long, with summary)</em> on the <em>Manage fields</em> page, then users can insert text of unlimited length. On the <em>Manage form display</em> page, you can set the number of rows that are displayed to users.') . '</dd>';
+        $output .= '<dt>' . $this->t('Trimming the text length') . '</dt>';
+        $output .= '<dd>' . $this->t('On the <em>Manage display</em> page you can choose to display a trimmed version of the text, and if so, where to cut off the text.') . '</dd>';
+        $output .= '<dt>' . $this->t('Displaying summaries instead of trimmed text') . '</dt>';
+        $output .= '<dd>' . $this->t('As an alternative to using a trimmed version of the text, you can enter a separate summary by choosing the <em>Text (formatted, long, with summary)</em> field type on the <em>Manage fields</em> page. Even when <em>Summary input</em> is enabled, and summaries are provided, you can display <em>trimmed</em> text nonetheless by choosing the appropriate format on the <em>Manage display</em> page.') . '</dd>';
+        $output .= '<dt>' . $this->t('Using text formats and editors') . '</dt>';
+        $output .= '<dd>' . $this->t('If you choose <em>Text (plain)</em> or <em>Text (plain, long)</em> you restrict the input to <em>Plain text</em> only. If you choose <em>Text (formatted)</em>, <em>Text (formatted, long)</em>, or <em>Text (formatted, long with summary)</em> you allow users to write formatted text. Which options are available to individual users depends on the settings on the <a href=":formats">Text formats and editors page</a>.', [':formats' => Url::fromRoute('filter.admin_overview')->toString()]) . '</dd>';
+        $output .= '</dl>';
+        return $output;
+    }
+    return NULL;
+  }
+
+}

web/core/modules/text/src/Plugin/Field/FieldFormatter/TextDefaultFormatter.php

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+<?php
+
+namespace Drupal\text\Plugin\Field\FieldFormatter;
+
+use Drupal\Core\Field\Attribute\FieldFormatter;
+use Drupal\Core\Field\FormatterBase;
+use Drupal\Core\Field\FieldItemListInterface;
+use Drupal\Core\StringTranslation\TranslatableMarkup;
+
+/**
+ * Plugin implementation of the 'text_default' formatter.
+ */
+#[FieldFormatter(
+  id: 'text_default',
+  label: new TranslatableMarkup('Default'),
+  field_types: [
+    'text',
+    'text_long',
+    'text_with_summary',
+  ],
+)]
+class TextDefaultFormatter extends FormatterBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function viewElements(FieldItemListInterface $items, $langcode) {
+    $elements = [];
+
+    // The ProcessedText element already handles cache context & tag bubbling.
+    // @see \Drupal\filter\Element\ProcessedText::preRenderText()
+    foreach ($items as $delta => $item) {
+      $elements[$delta] = [
+        '#type' => 'processed_text',
+        '#text' => $item->value,
+        '#format' => $item->format,
+        '#langcode' => $item->getLangcode(),
+      ];
+    }
+
+    return $elements;
+  }
+
+}

web/core/modules/text/src/Plugin/Field/FieldFormatter/TextSummaryOrTrimmedFormatter.php

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+<?php
+
+namespace Drupal\text\Plugin\Field\FieldFormatter;
+
+use Drupal\Core\Field\Attribute\FieldFormatter;
+use Drupal\Core\StringTranslation\TranslatableMarkup;
+
+/**
+ * Plugin implementation of the 'text_summary_or_trimmed' formatter.
+ */
+#[FieldFormatter(
+  id: 'text_summary_or_trimmed',
+  label: new TranslatableMarkup('Summary or trimmed'),
+  field_types: [
+    'text_with_summary',
+  ],
+)]
+class TextSummaryOrTrimmedFormatter extends TextTrimmedFormatter {}

web/core/modules/text/src/Plugin/Field/FieldFormatter/TextTrimmedFormatter.php

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+<?php
+
+namespace Drupal\text\Plugin\Field\FieldFormatter;
+
+use Drupal\Core\Field\Attribute\FieldFormatter;
+use Drupal\Core\Field\FormatterBase;
+use Drupal\Core\Field\FieldItemListInterface;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Security\TrustedCallbackInterface;
+use Drupal\Core\StringTranslation\TranslatableMarkup;
+
+/**
+ * Plugin implementation of the 'text_trimmed' formatter.
+ *
+ * Note: This class also contains the implementations used by the
+ * 'text_summary_or_trimmed' formatter.
+ *
+ * @see \Drupal\text\Field\Formatter\TextSummaryOrTrimmedFormatter
+ */
+#[FieldFormatter(
+  id: 'text_trimmed',
+  label: new TranslatableMarkup('Trimmed'),
+  field_types: [
+    'text',
+    'text_long',
+    'text_with_summary',
+  ],
+)]
+class TextTrimmedFormatter extends FormatterBase implements TrustedCallbackInterface {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function defaultSettings() {
+    return [
+      'trim_length' => '600',
+    ] + parent::defaultSettings();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function settingsForm(array $form, FormStateInterface $form_state) {
+    $element['trim_length'] = [
+      '#title' => $this->t('Trimmed limit'),
+      '#type' => 'number',
+      '#field_suffix' => $this->t('characters'),
+      '#default_value' => $this->getSetting('trim_length'),
+      '#description' => $this->t('If the summary is not set, the trimmed %label field will end at the last full sentence before this character limit.', ['%label' => $this->fieldDefinition->getLabel()]),
+      '#min' => 1,
+      '#required' => TRUE,
+    ];
+    return $element;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function settingsSummary() {
+    $summary = [];
+    $summary[] = $this->t('Trimmed limit: @trim_length characters', ['@trim_length' => $this->getSetting('trim_length')]);
+    return $summary;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function viewElements(FieldItemListInterface $items, $langcode) {
+    $elements = [];
+
+    $render_as_summary = function (&$element) {
+      // Make sure any default #pre_render callbacks are set on the element,
+      // because text_pre_render_summary() must run last.
+      $element += \Drupal::service('element_info')->getInfo($element['#type']);
+      // Add the #pre_render callback that renders the text into a summary.
+      $element['#pre_render'][] = [TextTrimmedFormatter::class, 'preRenderSummary'];
+      // Pass on the trim length to the #pre_render callback via a property.
+      $element['#text_summary_trim_length'] = $this->getSetting('trim_length');
+    };
+
+    // The ProcessedText element already handles cache context & tag bubbling.
+    // @see \Drupal\filter\Element\ProcessedText::preRenderText()
+    foreach ($items as $delta => $item) {
+      $elements[$delta] = [
+        '#type' => 'processed_text',
+        '#text' => NULL,
+        '#format' => $item->format,
+        '#langcode' => $item->getLangcode(),
+      ];
+
+      if ($this->getPluginId() == 'text_summary_or_trimmed' && !empty($item->summary)) {
+        $elements[$delta]['#text'] = $item->summary;
+      }
+      else {
+        $elements[$delta]['#text'] = $item->value;
+        $render_as_summary($elements[$delta]);
+      }
+    }
+
+    return $elements;
+  }
+
+  /**
+   * Pre-render callback: Renders a processed text element's #markup summary.
+   *
+   * @param array $element
+   *   A structured array with the following key-value pairs:
+   *   - #markup: the filtered text (as filtered by filter_pre_render_text())
+   *   - #format: containing the machine name of the filter format to be used to
+   *     filter the text. Defaults to the fallback format. See
+   *     filter_fallback_format().
+   *   - #text_summary_trim_length: the desired character length of the summary
+   *     (used by text_summary())
+   *
+   * @return array
+   *   The passed-in element with the filtered text in '#markup' trimmed.
+   *
+   * @see filter_pre_render_text()
+   * @see text_summary()
+   */
+  public static function preRenderSummary(array $element) {
+    $element['#markup'] = text_summary($element['#markup'], $element['#format'], $element['#text_summary_trim_length']);
+    return $element;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function trustedCallbacks() {
+    return ['preRenderSummary'];
+  }
+
+}

web/core/modules/text/src/Plugin/Field/FieldType/TextFieldItemList.php

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+<?php
+
+namespace Drupal\text\Plugin\Field\FieldType;
+
+use Drupal\Core\Field\FieldItemList;
+use Drupal\Core\Form\FormStateInterface;
+
+/**
+ * Defines an item list class for text fields.
+ */
+class TextFieldItemList extends FieldItemList {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function defaultValuesFormValidate(array $element, array &$form, FormStateInterface $form_state) {
+    if ($allowed_formats = $this->getSetting('allowed_formats')) {
+      $field_name = $this->definition->getName();
+      $submitted_values = $form_state->getValue([
+        'default_value_input',
+        $field_name,
+      ]);
+      foreach ($submitted_values as $delta => $value) {
+        if (!in_array($value['format'], $allowed_formats, TRUE)) {
+          $form_state->setErrorByName(
+            "default_value_input][{$field_name}][{$delta}][format",
+            $this->t("The selected text format is not allowed.")
+          );
+        }
+      }
+    }
+    parent::defaultValuesFormValidate($element, $form, $form_state);
+  }
+
+}

web/core/modules/text/src/Plugin/Field/FieldType/TextItem.php

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+<?php
+
+namespace Drupal\text\Plugin\Field\FieldType;
+
+use Drupal\Core\Field\Attribute\FieldType;
+use Drupal\Core\Field\FieldStorageDefinitionInterface;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\StringTranslation\TranslatableMarkup;
+
+/**
+ * Plugin implementation of the 'text' field type.
+ */
+#[FieldType(
+  id: "text",
+  label: new TranslatableMarkup("Text (formatted)"),
+  description: [
+    new TranslatableMarkup("Ideal for titles and names that need to support markup such as bold, italics or links"),
+    new TranslatableMarkup("Efficient storage for short text"),
+    new TranslatableMarkup("Requires specifying a maximum length"),
+    new TranslatableMarkup("Good for fields with known or predictable lengths"),
+  ],
+  category: "formatted_text",
+  default_widget: "text_textfield",
+  default_formatter: "text_default",
+  list_class: TextFieldItemList::class,
+)]
+class TextItem extends TextItemBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function defaultStorageSettings() {
+    return [
+      'max_length' => 255,
+    ] + parent::defaultStorageSettings();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function schema(FieldStorageDefinitionInterface $field_definition) {
+    return [
+      'columns' => [
+        'value' => [
+          'type' => 'varchar',
+          'length' => $field_definition->getSetting('max_length'),
+        ],
+        'format' => [
+          'type' => 'varchar',
+          'length' => 255,
+        ],
+      ],
+      'indexes' => [
+        'format' => ['format'],
+      ],
+    ];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getConstraints() {
+    $constraint_manager = \Drupal::typedDataManager()->getValidationConstraintManager();
+    $constraints = parent::getConstraints();
+
+    if ($max_length = $this->getSetting('max_length')) {
+      $constraints[] = $constraint_manager->create('ComplexData', [
+        'value' => [
+          'Length' => [
+            'max' => $max_length,
+            'maxMessage' => $this->t('%name: the text may not be longer than @max characters.', ['%name' => $this->getFieldDefinition()->getLabel(), '@max' => $max_length]),
+          ],
+        ],
+      ]);
+    }
+
+    return $constraints;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function storageSettingsForm(array &$form, FormStateInterface $form_state, $has_data) {
+    $element = [];
+
+    $element['max_length'] = [
+      '#type' => 'number',
+      '#title' => $this->t('Maximum length'),
+      '#default_value' => $this->getSetting('max_length'),
+      '#required' => TRUE,
+      '#description' => $this->t('The maximum length of the field in characters.'),
+      '#min' => 1,
+      '#disabled' => $has_data,
+    ];
+    $element += parent::storageSettingsForm($form, $form_state, $has_data);
+
+    return $element;
+  }
+
+}

web/core/modules/text/src/Plugin/Field/FieldType/TextItemBase.php

@@ -0,0 +1,153 @@
+<?php
+
+namespace Drupal\text\Plugin\Field\FieldType;
+
+use Drupal\Component\Utility\Random;
+use Drupal\Core\Field\FieldDefinitionInterface;
+use Drupal\Core\Field\FieldItemBase;
+use Drupal\Core\Field\FieldStorageDefinitionInterface;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\TypedData\DataDefinition;
+
+/**
+ * Base class for 'text' configurable field types.
+ */
+abstract class TextItemBase extends FieldItemBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function defaultFieldSettings() {
+    return ['allowed_formats' => []] + parent::defaultFieldSettings();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function fieldSettingsForm(array $form, FormStateInterface $form_state) {
+    $element = parent::fieldSettingsForm($form, $form_state);
+    $settings = $this->getSettings();
+
+    $element['allowed_formats'] = [
+      '#type' => 'checkboxes',
+      '#title' => $this->t('Allowed text formats'),
+      '#options' => $this->get('format')->getPossibleOptions(),
+      '#default_value' => !empty($settings['allowed_formats']) ? $settings['allowed_formats'] : [],
+      '#description' => $this->t('Select the allowed text formats. If no formats are selected, all available text formats will be displayed to the user.'),
+      '#element_validate' => [[static::class, 'validateAllowedFormats']],
+    ];
+
+    return $element;
+  }
+
+  /**
+   * Render API callback: Processes the allowed formats value.
+   *
+   * Ensure the element's value is an indexed array of selected format IDs.
+   * This function is assigned as an #element_validate callback.
+   *
+   * @see static::fieldSettingsForm()
+   */
+  public static function validateAllowedFormats(array &$element, FormStateInterface $form_state) {
+    $value = array_values(array_filter($form_state->getValue($element['#parents'])));
+    $form_state->setValueForElement($element, $value);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function calculateDependencies(FieldDefinitionInterface $field_definition) {
+    // Add explicitly allowed formats as config dependencies.
+    $format_dependencies = [];
+    $dependencies = parent::calculateDependencies($field_definition);
+    if (!is_null($field_definition->getSetting('allowed_formats'))) {
+      $format_dependencies = array_map(function (string $format_id) {
+        return 'filter.format.' . $format_id;
+      }, $field_definition->getSetting('allowed_formats'));
+    }
+    $config = $dependencies['config'] ?? [];
+    $dependencies['config'] = array_merge($config, $format_dependencies);
+    return $dependencies;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function propertyDefinitions(FieldStorageDefinitionInterface $field_definition) {
+    $properties['value'] = DataDefinition::create('string')
+      ->setLabel(t('Text'))
+      ->setRequired(TRUE);
+
+    $properties['format'] = DataDefinition::create('filter_format')
+      ->setLabel(t('Text format'))
+      ->setSetting('allowed_formats', $field_definition->getSetting('allowed_formats'));
+
+    $properties['processed'] = DataDefinition::create('string')
+      ->setLabel(t('Processed text'))
+      ->setDescription(t('The text with the text format applied.'))
+      ->setComputed(TRUE)
+      ->setClass('\Drupal\text\TextProcessed')
+      ->setSetting('text source', 'value')
+      ->setInternal(FALSE);
+
+    return $properties;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function applyDefaultValue($notify = TRUE) {
+    // @todo Add in the filter default format here.
+    $this->setValue(['format' => NULL], $notify);
+    return $this;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function isEmpty() {
+    $value = $this->get('value')->getValue();
+    return $value === NULL || $value === '';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function onChange($property_name, $notify = TRUE) {
+    // Unset processed properties that are affected by the change.
+    foreach ($this->definition->getPropertyDefinitions() as $property => $definition) {
+      if ($definition->getClass() == '\Drupal\text\TextProcessed') {
+        if ($property_name == 'format' || ($definition->getSetting('text source') == $property_name)) {
+          $this->writePropertyValue($property, NULL);
+        }
+      }
+    }
+    parent::onChange($property_name, $notify);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function generateSampleValue(FieldDefinitionInterface $field_definition) {
+    $random = new Random();
+    $settings = $field_definition->getSettings();
+
+    if (empty($settings['max_length'])) {
+      // Textarea handling
+      $value = $random->paragraphs();
+    }
+    else {
+      // Textfield handling.
+      $max = (int) ceil($settings['max_length'] / 3);
+      $value = substr($random->sentences(mt_rand(1, $max), FALSE), 0, $settings['max_length']);
+    }
+
+    $values = [
+      'value' => $value,
+      'summary' => $value,
+      'format' => filter_fallback_format(),
+    ];
+    return $values;
+  }
+
+}

web/core/modules/text/src/Plugin/Field/FieldType/TextLongItem.php

@@ -0,0 +1,48 @@
+<?php
+
+namespace Drupal\text\Plugin\Field\FieldType;
+
+use Drupal\Core\Field\Attribute\FieldType;
+use Drupal\Core\Field\FieldStorageDefinitionInterface;
+use Drupal\Core\StringTranslation\TranslatableMarkup;
+
+/**
+ * Plugin implementation of the 'text_long' field type.
+ */
+#[FieldType(
+  id: "text_long",
+  label: new TranslatableMarkup("Text (formatted, long)"),
+  description: [
+    new TranslatableMarkup("Ideal for longer texts, like body or description without a summary"),
+    new TranslatableMarkup("Supports long text without specifying a maximum length"),
+    new TranslatableMarkup("May use more storage and be slower for searching and sorting"),
+  ],
+  category: "formatted_text",
+  default_widget: "text_textarea",
+  default_formatter: "text_default",
+  list_class: TextFieldItemList::class,
+)]
+class TextLongItem extends TextItemBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function schema(FieldStorageDefinitionInterface $field_definition) {
+    return [
+      'columns' => [
+        'value' => [
+          'type' => 'text',
+          'size' => 'big',
+        ],
+        'format' => [
+          'type' => 'varchar_ascii',
+          'length' => 255,
+        ],
+      ],
+      'indexes' => [
+        'format' => ['format'],
+      ],
+    ];
+  }
+
+}

web/core/modules/text/src/Plugin/Field/FieldType/TextWithSummaryItem.php

@@ -0,0 +1,134 @@
+<?php
+
+namespace Drupal\text\Plugin\Field\FieldType;
+
+use Drupal\Core\Field\Attribute\FieldType;
+use Drupal\Core\Field\FieldStorageDefinitionInterface;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\StringTranslation\TranslatableMarkup;
+use Drupal\Core\TypedData\DataDefinition;
+
+/**
+ * Plugin implementation of the 'text_with_summary' field type.
+ */
+#[FieldType(
+  id: "text_with_summary",
+  label: new TranslatableMarkup("Text (formatted, long, with summary)"),
+  description: [
+    new TranslatableMarkup("Ideal for longer texts, like body or description with a summary"),
+    new TranslatableMarkup("Allows specifying a summary for the text"),
+    new TranslatableMarkup("Supports long text without specifying a maximum length"),
+    new TranslatableMarkup("May use more storage and be slower for searching and sorting"),
+  ],
+  category: "formatted_text",
+  default_widget: "text_textarea_with_summary",
+  default_formatter: "text_default",
+  list_class: TextFieldItemList::class,
+)]
+class TextWithSummaryItem extends TextItemBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function defaultFieldSettings() {
+    return [
+      'display_summary' => 0,
+      'required_summary' => FALSE,
+    ] + parent::defaultFieldSettings();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function propertyDefinitions(FieldStorageDefinitionInterface $field_definition) {
+    $properties = parent::propertyDefinitions($field_definition);
+
+    $properties['summary'] = DataDefinition::create('string')
+      ->setLabel(new TranslatableMarkup('Summary'));
+
+    $properties['summary_processed'] = DataDefinition::create('string')
+      ->setLabel(new TranslatableMarkup('Processed summary'))
+      ->setDescription(new TranslatableMarkup('The summary text with the text format applied.'))
+      ->setComputed(TRUE)
+      ->setClass('\Drupal\text\TextProcessed')
+      ->setSetting('text source', 'summary');
+
+    return $properties;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function schema(FieldStorageDefinitionInterface $field_definition) {
+    return [
+      'columns' => [
+        'value' => [
+          'type' => 'text',
+          'size' => 'big',
+        ],
+        'summary' => [
+          'type' => 'text',
+          'size' => 'big',
+        ],
+        'format' => [
+          'type' => 'varchar_ascii',
+          'length' => 255,
+        ],
+      ],
+      'indexes' => [
+        'format' => ['format'],
+      ],
+    ];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function isEmpty() {
+    $value = $this->get('summary')->getValue();
+    return parent::isEmpty() && ($value === NULL || $value === '');
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function fieldSettingsForm(array $form, FormStateInterface $form_state) {
+    $element = parent::fieldSettingsForm($form, $form_state);
+    $settings = $this->getSettings();
+
+    $element['display_summary'] = [
+      '#type' => 'checkbox',
+      '#title' => $this->t('Summary input'),
+      '#default_value' => $settings['display_summary'],
+      '#description' => $this->t('This allows authors to input an explicit summary, to be displayed instead of the automatically trimmed text when using the "Summary or trimmed" display type.'),
+    ];
+
+    $element['required_summary'] = [
+      '#type' => 'checkbox',
+      '#title' => $this->t('Require summary'),
+      '#description' => $this->t('The summary will also be visible when marked as required.'),
+      '#default_value' => $settings['required_summary'],
+    ];
+
+    return $element;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getConstraints() {
+    $constraints = parent::getConstraints();
+    if ($this->getSetting('required_summary')) {
+      $manager = $this->getTypedDataManager()->getValidationConstraintManager();
+      $constraints[] = $manager->create('ComplexData', [
+        'summary' => [
+          'NotNull' => [
+            'message' => $this->t('The summary field is required for @name', ['@name' => $this->getFieldDefinition()->getLabel()]),
+          ],
+        ],
+      ]);
+    }
+    return $constraints;
+  }
+
+}

web/core/modules/text/src/Plugin/Field/FieldWidget/TextareaWidget.php

@@ -0,0 +1,63 @@
+<?php
+
+namespace Drupal\text\Plugin\Field\FieldWidget;
+
+use Drupal\Core\Field\Attribute\FieldWidget;
+use Drupal\Core\Field\FieldItemListInterface;
+use Drupal\Core\Field\Plugin\Field\FieldWidget\StringTextareaWidget;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\StringTranslation\TranslatableMarkup;
+use Symfony\Component\Validator\ConstraintViolationInterface;
+
+/**
+ * Plugin implementation of the 'text_textarea' widget.
+ */
+#[FieldWidget(
+  id: 'text_textarea',
+  label: new TranslatableMarkup('Text area (multiple rows)'),
+  field_types: ['text_long'],
+)]
+class TextareaWidget extends StringTextareaWidget {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function settingsForm(array $form, FormStateInterface $form_state) {
+    $element = parent::settingsForm($form, $form_state);
+    $element['rows']['#description'] = $this->t('Text editors may override this setting.');
+    return $element;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
+    $main_widget = parent::formElement($items, $delta, $element, $form, $form_state);
+    $allowed_formats = $this->getFieldSetting('allowed_formats');
+
+    $element = $main_widget['value'];
+    $element['#type'] = 'text_format';
+    $element['#format'] = $items[$delta]->format;
+    $element['#base_type'] = $main_widget['value']['#type'];
+
+    if ($allowed_formats && !$this->isDefaultValueWidget($form_state)) {
+      $element['#allowed_formats'] = $allowed_formats;
+    }
+
+    return $element;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function errorElement(array $element, ConstraintViolationInterface $violation, array $form, FormStateInterface $form_state) {
+    if (isset($element['format']['#access']) && !$element['format']['#access'] && preg_match('/^[0-9]*\.format$/', $violation->getPropertyPath())) {
+      // Ignore validation errors for formats if formats may not be changed,
+      // such as when existing formats become invalid.
+      // See \Drupal\filter\Element\TextFormat::processFormat().
+      return FALSE;
+    }
+    return $element;
+  }
+
+}

web/core/modules/text/src/Plugin/Field/FieldWidget/TextareaWithSummaryWidget.php

@@ -0,0 +1,107 @@
+<?php
+
+namespace Drupal\text\Plugin\Field\FieldWidget;
+
+use Drupal\Core\Field\Attribute\FieldWidget;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\StringTranslation\TranslatableMarkup;
+use Symfony\Component\Validator\ConstraintViolationInterface;
+use Drupal\Core\Field\FieldItemListInterface;
+
+/**
+ * Plugin implementation of the 'text_textarea_with_summary' widget.
+ */
+#[FieldWidget(
+  id: 'text_textarea_with_summary',
+  label: new TranslatableMarkup('Text area with a summary'),
+  field_types: ['text_with_summary'],
+)]
+class TextareaWithSummaryWidget extends TextareaWidget {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function defaultSettings() {
+    return [
+      'rows' => '9',
+      'summary_rows' => '3',
+      'placeholder' => '',
+      'show_summary' => FALSE,
+    ] + parent::defaultSettings();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function settingsForm(array $form, FormStateInterface $form_state) {
+    $element = parent::settingsForm($form, $form_state);
+    $element['summary_rows'] = [
+      '#type' => 'number',
+      '#title' => $this->t('Summary rows'),
+      '#default_value' => $this->getSetting('summary_rows'),
+      '#description' => $element['rows']['#description'],
+      '#required' => TRUE,
+      '#min' => 1,
+    ];
+    $element['show_summary'] = [
+      '#type' => 'checkbox',
+      '#title' => $this->t('Always show the summary field'),
+      '#default_value' => $this->getSetting('show_summary'),
+    ];
+    return $element;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function settingsSummary() {
+    $summary = parent::settingsSummary();
+
+    $summary[] = $this->t('Number of summary rows: @rows', ['@rows' => $this->getSetting('summary_rows')]);
+    if ($this->getSetting('show_summary')) {
+      $summary[] = $this->t('Summary field will always be visible');
+    }
+
+    return $summary;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
+    $element = parent::formElement($items, $delta, $element, $form, $form_state);
+
+    $display_summary = $items[$delta]->summary || $this->getFieldSetting('display_summary');
+    $required = empty($form['#type']) && $this->getFieldSetting('required_summary');
+
+    $element['summary'] = [
+      '#type' => $display_summary ? 'textarea' : 'value',
+      '#default_value' => $items[$delta]->summary,
+      '#title' => $this->t('Summary'),
+      '#rows' => $this->getSetting('summary_rows'),
+      '#description' => !$required ? $this->t('Leave blank to use trimmed value of full text as the summary.') : '',
+      '#attributes' => ['class' => ['text-summary']],
+      '#prefix' => '<div class="js-text-summary-wrapper text-summary-wrapper">',
+      '#suffix' => '</div>',
+      '#weight' => -10,
+      '#required' => $required,
+    ];
+
+    if (!$this->getSetting('show_summary') && !$required) {
+      $element['summary']['#attributes']['class'][] = 'js-text-summary';
+      $element['summary']['#attached']['library'][] = 'text/drupal.text';
+    }
+
+    return $element;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function errorElement(array $element, ConstraintViolationInterface $violation, array $form, FormStateInterface $form_state) {
+    $element = parent::errorElement($element, $violation, $form, $form_state);
+    $property_path_array = explode('.', $violation->getPropertyPath());
+    return ($element === FALSE) ? FALSE : $element[$property_path_array[1]];
+  }
+
+}

web/core/modules/text/src/Plugin/Field/FieldWidget/TextfieldWidget.php

@@ -0,0 +1,54 @@
+<?php
+
+namespace Drupal\text\Plugin\Field\FieldWidget;
+
+use Drupal\Core\Field\Attribute\FieldWidget;
+use Drupal\Core\Field\FieldItemListInterface;
+use Drupal\Core\Field\Plugin\Field\FieldWidget\StringTextfieldWidget;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\StringTranslation\TranslatableMarkup;
+use Symfony\Component\Validator\ConstraintViolationInterface;
+
+/**
+ * Plugin implementation of the 'text_textfield' widget.
+ */
+#[FieldWidget(
+  id: 'text_textfield',
+  label: new TranslatableMarkup('Text field'),
+  field_types: ['text'],
+)]
+class TextfieldWidget extends StringTextfieldWidget {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
+    $main_widget = parent::formElement($items, $delta, $element, $form, $form_state);
+    $allowed_formats = $this->getFieldSetting('allowed_formats');
+
+    $element = $main_widget['value'];
+    $element['#type'] = 'text_format';
+    $element['#format'] = $items[$delta]->format ?? NULL;
+    $element['#base_type'] = $main_widget['value']['#type'];
+
+    if ($allowed_formats && !$this->isDefaultValueWidget($form_state)) {
+      $element['#allowed_formats'] = $allowed_formats;
+    }
+
+    return $element;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function errorElement(array $element, ConstraintViolationInterface $violation, array $form, FormStateInterface $form_state) {
+    if (isset($element['format']['#access']) && !$element['format']['#access'] && preg_match('/^[0-9]*\.format$/', $violation->getPropertyPath())) {
+      // Ignore validation errors for formats that may not be changed,
+      // such as when existing formats become invalid.
+      // See \Drupal\filter\Element\TextFormat::processFormat().
+      return FALSE;
+    }
+    return $element;
+  }
+
+}

web/core/modules/text/src/Plugin/migrate/field/d6/TextField.php

@@ -0,0 +1,138 @@
+<?php
+
+namespace Drupal\text\Plugin\migrate\field\d6;
+
+use Drupal\migrate\Plugin\MigrationInterface;
+use Drupal\migrate\Row;
+use Drupal\migrate_drupal\Attribute\MigrateField;
+use Drupal\migrate_drupal\Plugin\migrate\field\FieldPluginBase;
+
+// cspell:ignore optionwidgets
+/**
+ * MigrateField Plugin for Drupal 6 text fields.
+ */
+#[MigrateField(
+  id: 'd6_text',
+  core: [6],
+  type_map: [
+    'text' => 'text',
+    'text_long' => 'text_long',
+    'text_with_summary' => 'text_with_summary',
+  ],
+  source_module: 'text',
+  destination_module: 'text',
+)]
+class TextField extends FieldPluginBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFieldWidgetMap() {
+    return [
+      'text_textfield' => 'text_textfield',
+    ];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFieldFormatterMap() {
+    return [
+      'default' => 'text_default',
+      'trimmed' => 'text_trimmed',
+      'plain' => 'basic_string',
+    ];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function defineValueProcessPipeline(MigrationInterface $migration, $field_name, $field_info) {
+    $widget_type = $field_info['widget_type'] ?? $field_info['widget']['type'];
+
+    if ($widget_type == 'optionwidgets_onoff') {
+      $process = [
+        'value' => [
+          'plugin' => 'static_map',
+          'source' => 'value',
+          'default_value' => 0,
+        ],
+      ];
+
+      $checked_value = explode("\n", $field_info['global_settings']['allowed_values'])[1];
+      if (str_contains($checked_value, '|')) {
+        $checked_value = substr($checked_value, 0, strpos($checked_value, '|'));
+      }
+      $process['value']['map'][$checked_value] = 1;
+    }
+    else {
+      // See \Drupal\migrate_drupal\Plugin\migrate\source\d6\User::baseFields(),
+      // signature_format for an example of the YAML that represents this
+      // process array.
+      $process = [
+        'value' => 'value',
+        'format' => [
+          [
+            'plugin' => 'static_map',
+            'bypass' => TRUE,
+            'source' => 'format',
+            'map' => [0 => NULL],
+          ],
+          [
+            'plugin' => 'skip_on_empty',
+            'method' => 'process',
+          ],
+          [
+            'plugin' => 'migration_lookup',
+            'migration' => [
+              'd6_filter_format',
+              'd7_filter_format',
+            ],
+            'source' => 'format',
+          ],
+        ],
+      ];
+    }
+
+    $process = [
+      'plugin' => 'sub_process',
+      'source' => $field_name,
+      'process' => $process,
+    ];
+    $migration->setProcessOfProperty($field_name, $process);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFieldType(Row $row) {
+    $widget_type = $row->getSourceProperty('widget_type');
+    $settings = $row->getSourceProperty('global_settings');
+
+    if ($widget_type == 'text_textfield') {
+      $field_type = $settings['text_processing'] ? 'text' : 'string';
+      if (empty($settings['max_length']) || $settings['max_length'] > 255) {
+        $field_type .= '_long';
+      }
+      return $field_type;
+    }
+
+    if ($widget_type == 'text_textarea') {
+      $field_type = $settings['text_processing'] ? 'text_long' : 'string_long';
+      return $field_type;
+    }
+
+    switch ($widget_type) {
+      case 'optionwidgets_buttons':
+      case 'optionwidgets_select':
+        return 'list_string';
+
+      case 'optionwidgets_onoff':
+        return 'boolean';
+
+      default:
+        return parent::getFieldType($row);
+    }
+  }
+
+}

web/core/modules/text/src/Plugin/migrate/field/d7/TextField.php

@@ -0,0 +1,112 @@
+<?php
+
+namespace Drupal\text\Plugin\migrate\field\d7;
+
+use Drupal\migrate\Row;
+use Drupal\migrate\MigrateSkipRowException;
+use Drupal\migrate_drupal\Attribute\MigrateField;
+use Drupal\migrate_drupal\Plugin\migrate\field\FieldPluginBase;
+
+/**
+ * Migrate field plugin for Drupal 7 text fields.
+ */
+#[MigrateField(
+  id: 'd7_text',
+  core: [7],
+  type_map: [
+    'text' => 'text',
+    'text_long' => 'text_long',
+    'text_with_summary' => 'text_with_summary',
+  ],
+  source_module: 'text',
+  destination_module: 'text',
+)]
+class TextField extends FieldPluginBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFieldFormatterType(Row $row) {
+    $field_type = $this->getFieldType($row);
+    $formatter_type = $row->getSourceProperty('formatter/type');
+
+    switch ($field_type) {
+      case 'string':
+        $formatter_type = str_replace(['text_default', 'text_plain'], 'string', $formatter_type);
+        break;
+
+      case 'string_long':
+        $formatter_type = str_replace(['text_default', 'text_plain'], 'basic_string', $formatter_type);
+        break;
+    }
+
+    return $formatter_type;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFieldWidgetType(Row $row) {
+    $field_type = $this->getFieldType($row);
+    $widget_type = $row->getSourceProperty('widget/type');
+
+    switch ($field_type) {
+      case 'string':
+        $widget_type = str_replace('text_textfield', 'string_textfield', $widget_type);
+        break;
+
+      case 'string_long':
+        $widget_type = str_replace('text_textarea', 'string_textarea', $widget_type);
+        break;
+    }
+
+    return $widget_type;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFieldType(Row $row) {
+    $type = $row->getSourceProperty('type');
+    $plain_text = FALSE;
+    $filtered_text = FALSE;
+
+    foreach ($row->getSourceProperty('instances') as $instance) {
+      // Check if this field has plain text instances, filtered text instances,
+      // or both.
+      $data = unserialize($instance['data']);
+      switch ($data['settings']['text_processing']) {
+        case '0':
+          $plain_text = TRUE;
+          break;
+
+        case '1':
+          $filtered_text = TRUE;
+          break;
+      }
+    }
+
+    if (in_array($type, ['text', 'text_long'])) {
+      // If a text or text_long field has only plain text instances, migrate it
+      // to a string or string_long field.
+      if ($plain_text && !$filtered_text) {
+        $type = str_replace(['text', 'text_long'], ['string', 'string_long'], $type);
+      }
+      // If a text or text_long field has both plain text and filtered text
+      // instances, skip the row.
+      elseif ($plain_text && $filtered_text) {
+        $field_name = $row->getSourceProperty('field_name');
+        throw new MigrateSkipRowException("Can't migrate source field $field_name configured with both plain text and filtered text processing. See https://www.drupal.org/docs/8/upgrade/known-issues-when-upgrading-from-drupal-6-or-7-to-drupal-8#plain-text");
+      }
+    }
+    elseif ($type == 'text_with_summary' && $plain_text) {
+      // If a text_with_summary field has plain text instances, skip the row
+      // since there's no such thing as a string_with_summary field.
+      $field_name = $row->getSourceProperty('field_name');
+      throw new MigrateSkipRowException("Can't migrate source field $field_name of type text_with_summary configured with plain text processing. See https://www.drupal.org/docs/8/upgrade/known-issues-when-upgrading-from-drupal-6-or-7-to-drupal-8#plain-text");
+    }
+
+    return $type;
+  }
+
+}

web/core/modules/text/src/TextProcessed.php

@@ -0,0 +1,115 @@
+<?php
+
+namespace Drupal\text;
+
+use Drupal\Core\Cache\CacheableDependencyInterface;
+use Drupal\Core\Serialization\Attribute\JsonSchema;
+use Drupal\Core\TypedData\DataDefinitionInterface;
+use Drupal\Core\TypedData\TypedDataInterface;
+use Drupal\Core\TypedData\TypedData;
+use Drupal\filter\FilterProcessResult;
+use Drupal\filter\Render\FilteredMarkup;
+
+/**
+ * A computed property for processing text with a format.
+ *
+ * Required settings (below the definition's 'settings' key) are:
+ *  - text source: The text property containing the to be processed text.
+ */
+class TextProcessed extends TypedData implements CacheableDependencyInterface {
+
+  /**
+   * Cached processed text.
+   *
+   * @var \Drupal\filter\FilterProcessResult|null
+   */
+  protected $processed = NULL;
+
+  /**
+   * {@inheritdoc}
+   */
+  public function __construct(DataDefinitionInterface $definition, $name = NULL, ?TypedDataInterface $parent = NULL) {
+    parent::__construct($definition, $name, $parent);
+
+    if ($definition->getSetting('text source') === NULL) {
+      throw new \InvalidArgumentException("The definition's 'text source' key has to specify the name of the text property to be processed.");
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  #[JsonSchema(['type' => 'string', 'description' => 'May contain HTML markup.'])]
+  public function getValue() {
+    if ($this->processed !== NULL) {
+      return FilteredMarkup::create($this->processed->getProcessedText());
+    }
+
+    $item = $this->getParent();
+    $text = $item->{($this->definition->getSetting('text source'))};
+
+    // Avoid doing unnecessary work on empty strings.
+    if (!isset($text) || $text === '') {
+      $this->processed = new FilterProcessResult('');
+    }
+    else {
+      $build = [
+        '#type' => 'processed_text',
+        '#text' => $text,
+        '#format' => $item->format,
+        '#filter_types_to_skip' => [],
+        '#langcode' => $item->getLangcode(),
+      ];
+      // Capture the cacheability metadata associated with the processed text.
+      $processed_text = $this->getRenderer()->renderInIsolation($build);
+      $this->processed = FilterProcessResult::createFromRenderArray($build)->setProcessedText((string) $processed_text);
+    }
+    return FilteredMarkup::create($this->processed->getProcessedText());
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function setValue($value, $notify = TRUE) {
+    $this->processed = $value;
+    // Notify the parent of any changes.
+    if ($notify && isset($this->parent)) {
+      $this->parent->onChange($this->name);
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getCacheTags() {
+    $this->getValue();
+    return $this->processed->getCacheTags();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getCacheContexts() {
+    $this->getValue();
+    return $this->processed->getCacheContexts();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getCacheMaxAge() {
+    $this->getValue();
+    return $this->processed->getCacheMaxAge();
+  }
+
+  /**
+   * Returns the renderer service.
+   *
+   * @return \Drupal\Core\Render\RendererInterface
+   *   The renderer service.
+   */
+  protected function getRenderer() {
+    return \Drupal::service('renderer');
+  }
+
+}

web/core/modules/text/tests/src/Functional/GenericTest.php

@@ -0,0 +1,14 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\Tests\text\Functional;
+
+use Drupal\Tests\system\Functional\Module\GenericModuleTestBase;
+
+/**
+ * Generic module test for text.
+ *
+ * @group text
+ */
+class GenericTest extends GenericModuleTestBase {}

web/core/modules/text/tests/src/Functional/TextFieldTest.php

@@ -0,0 +1,408 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\Tests\text\Functional;
+
+use Drupal\Component\Utility\Html;
+use Drupal\entity_test\Entity\EntityTest;
+use Drupal\field\Entity\FieldConfig;
+use Drupal\field\Entity\FieldStorageConfig;
+use Drupal\filter\Entity\FilterFormat;
+use Drupal\filter\Render\FilteredMarkup;
+use Drupal\Tests\field\Functional\FunctionalString\StringFieldTest;
+use Drupal\Tests\TestFileCreationTrait;
+
+/**
+ * Tests the creation of text fields.
+ *
+ * @group text
+ */
+class TextFieldTest extends StringFieldTest {
+
+  use TestFileCreationTrait {
+    getTestFiles as drupalGetTestFiles;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $modules = ['entity_test', 'file', 'field_ui'];
+
+  /**
+   * A user with relevant administrative privileges.
+   *
+   * @var \Drupal\user\UserInterface
+   */
+  protected $adminUser;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected $defaultTheme = 'stark';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp(): void {
+    parent::setUp();
+
+    $this->adminUser = $this->drupalCreateUser([
+      'administer filters',
+      'administer entity_test fields',
+    ]);
+  }
+
+  // Test fields.
+
+  /**
+   * Tests text field validation.
+   */
+  public function testTextFieldValidation(): void {
+    // Create a field with settings to validate.
+    $max_length = 3;
+    $field_name = $this->randomMachineName();
+    $field_storage = FieldStorageConfig::create([
+      'field_name' => $field_name,
+      'entity_type' => 'entity_test',
+      'type' => 'text',
+      'settings' => [
+        'max_length' => $max_length,
+      ],
+    ]);
+    $field_storage->save();
+    FieldConfig::create([
+      'field_storage' => $field_storage,
+      'bundle' => 'entity_test',
+    ])->save();
+
+    // Test validation with valid and invalid values.
+    $entity = EntityTest::create();
+    for ($i = 0; $i <= $max_length + 2; $i++) {
+      $entity->{$field_name}->value = str_repeat('x', $i);
+      $violations = $entity->{$field_name}->validate();
+      if ($i <= $max_length) {
+        $this->assertCount(0, $violations, "Length $i does not cause validation error when max_length is $max_length");
+      }
+      else {
+        $this->assertCount(1, $violations, "Length $i causes validation error when max_length is $max_length");
+      }
+    }
+  }
+
+  /**
+   * Tests required long text with file upload.
+   */
+  public function testRequiredLongTextWithFileUpload(): void {
+    // Create a text field.
+    $text_field_name = 'text_long';
+    $field_storage = FieldStorageConfig::create([
+      'field_name' => $text_field_name,
+      'entity_type' => 'entity_test',
+      'type' => 'text_with_summary',
+    ]);
+    $field_storage->save();
+    FieldConfig::create([
+      'field_storage' => $field_storage,
+      'bundle' => 'entity_test',
+      'label' => $this->randomMachineName() . '_label',
+      'required' => TRUE,
+    ])->save();
+
+    // Create a file field.
+    $file_field_name = 'file_field';
+    $field_storage = FieldStorageConfig::create([
+      'field_name' => $file_field_name,
+      'entity_type' => 'entity_test',
+      'type' => 'file',
+    ]);
+    $field_storage->save();
+    FieldConfig::create([
+      'field_storage' => $field_storage,
+      'bundle' => 'entity_test',
+      'label' => $this->randomMachineName() . '_label',
+    ])->save();
+
+    /** @var \Drupal\Core\Entity\EntityDisplayRepositoryInterface $display_repository */
+    $display_repository = \Drupal::service('entity_display.repository');
+    $display_repository->getFormDisplay('entity_test', 'entity_test')
+      ->setComponent($text_field_name, [
+        'type' => 'text_textarea_with_summary',
+      ])
+      ->setComponent($file_field_name, [
+        'type' => 'file_generic',
+      ])
+      ->save();
+    $display_repository->getViewDisplay('entity_test', 'entity_test', 'full')
+      ->setComponent($text_field_name)
+      ->setComponent($file_field_name)
+      ->save();
+
+    $test_file = current($this->drupalGetTestFiles('text'));
+    $edit['files[file_field_0]'] = \Drupal::service('file_system')->realpath($test_file->uri);
+    $this->drupalGet('entity_test/add');
+    $this->submitForm($edit, 'Upload');
+    $this->assertSession()->statusCodeEquals(200);
+    $edit = [
+      'text_long[0][value]' => 'Long text',
+    ];
+    $this->submitForm($edit, 'Save');
+    $this->assertSession()->statusCodeEquals(200);
+    $this->drupalGet('entity_test/1');
+    $this->assertSession()->pageTextContains('Long text');
+  }
+
+  /**
+   * Tests widgets.
+   */
+  public function testTextfieldWidgets(): void {
+    $this->_testTextfieldWidgets('text', 'text_textfield');
+    $this->_testTextfieldWidgets('text_long', 'text_textarea');
+  }
+
+  /**
+   * Tests widgets + 'formatted_text' setting.
+   */
+  public function testTextfieldWidgetsFormatted(): void {
+    $this->_testTextfieldWidgetsFormatted('text', 'text_textfield');
+    $this->_testTextfieldWidgetsFormatted('text_long', 'text_textarea');
+  }
+
+  /**
+   * Test widgets for fields with selected allowed formats.
+   */
+  public function testTextfieldWidgetsAllowedFormats(): void {
+    // Create one text format.
+    $this->drupalLogin($this->adminUser);
+    $format1 = FilterFormat::create([
+      'format' => $this->randomMachineName(),
+      'name' => '1_' . $this->randomMachineName(),
+    ]);
+    $format1->save();
+
+    // Create a second text format.
+    $format2 = FilterFormat::create([
+      'format' => $this->randomMachineName(),
+      'name' => '2_' . $this->randomMachineName(),
+      'filters' => [
+        'filter_html' => [
+          'status' => 1,
+          'settings' => [
+            'allowed_html' => '<strong>',
+          ],
+        ],
+      ],
+    ]);
+    $format2->save();
+
+    // Create a third text format.
+    $format3 = FilterFormat::create([
+      'format' => $this->randomMachineName(),
+      'name' => '3_' . $this->randomMachineName(),
+    ]);
+    $format3->save();
+
+    // Grant access to both formats to the user.
+    $roles = $this->webUser->getRoles();
+    $rid = $roles[0];
+    user_role_grant_permissions($rid, [
+      $format1->getPermissionName(),
+      $format2->getPermissionName(),
+      $format3->getPermissionName(),
+    ]);
+
+    // Create a field with multiple formats allowed.
+    $field_name = $this->randomMachineName();
+    $field_storage = FieldStorageConfig::create([
+      'field_name' => $field_name,
+      'entity_type' => 'entity_test',
+      'type' => 'text',
+    ]);
+    $field_storage->save();
+    $field = FieldConfig::create([
+      'field_storage' => $field_storage,
+      'bundle' => 'entity_test',
+      'label' => $this->randomMachineName() . '_label',
+      'settings' => ['allowed_formats' => []],
+    ]);
+    $field->save();
+
+    /** @var \Drupal\Core\Entity\EntityDisplayRepositoryInterface $entity_display_repository */
+    $entity_display_repository = $this->container->get('entity_display.repository');
+    $entity_display_repository->getFormDisplay('entity_test', 'entity_test', 'default')
+      ->setComponent($field_name, [
+        'type' => 'text_textfield',
+      ])
+      ->save();
+    $entity_display_repository->getViewDisplay('entity_test', 'entity_test', 'full')
+      ->setComponent($field_name)
+      ->save();
+
+    // Display the creation form.
+    $this->drupalLogin($this->webUser);
+    $this->drupalGet('entity_test/add');
+    $this->assertSession()->fieldExists("{$field_name}[0][value]", NULL);
+    $this->assertSession()->optionExists("{$field_name}[0][format]", $format1->id());
+    $this->assertSession()->optionExists("{$field_name}[0][format]", $format2->id());
+    $this->assertSession()->optionExists("{$field_name}[0][format]", $format3->id());
+
+    $filtered_markup = FilteredMarkup::create('<div><strong><span>Hello World</span></strong></div>');
+    $edit = [
+      "{$field_name}[0][value]" => $filtered_markup,
+    ];
+    $this->submitForm($edit, 'Save');
+    preg_match('|entity_test/manage/(\d+)|', $this->getUrl(), $match);
+    $id = $match[1];
+    $this->assertSession()->pageTextContains('entity_test ' . $id . ' has been created.');
+
+    // Display the entity.
+    $entity = EntityTest::load($id);
+    $display = $entity_display_repository->getViewDisplay($entity->getEntityTypeId(), $entity->bundle(), 'full');
+    $content = $display->build($entity);
+    $rendered_entity = \Drupal::service('renderer')->renderRoot($content);
+    $this->assertStringContainsString('<div><strong><span>', (string) $rendered_entity);
+
+    // Log back in as admin.
+    $this->drupalLogin($this->adminUser);
+    // Change field to allow only one format.
+    $path = "entity_test/structure/entity_test/fields/entity_test.entity_test.$field_name";
+    $this->drupalGet($path);
+    $this->submitForm(["settings[allowed_formats][{$format1->id()}]" => $format1->id()], 'Save settings');
+    $this->drupalGet($path);
+    // Display the creation form.
+    $this->drupalLogin($this->webUser);
+    // We shouldn't have the 'format' selector since only one format is allowed.
+    $this->drupalGet('entity_test/add');
+    $this->assertSession()->fieldExists("{$field_name}[0][value]", NULL);
+    $this->assertSession()->fieldNotExists("{$field_name}[0][format]");
+
+    // Retest the entity renders fine even though filter2 is disabled.
+    $entity = EntityTest::load($id);
+    $display = $entity_display_repository->getViewDisplay($entity->getEntityTypeId(), $entity->bundle(), 'full');
+    $content = $display->build($entity);
+    $rendered_entity = \Drupal::service('renderer')->renderRoot($content);
+    $this->assertStringContainsString('<div><strong><span>', (string) $rendered_entity);
+
+    // Test when 2 of 3 formats are selected.
+    $field->setSetting('allowed_formats', [$format1->id(), $format2->id()]);
+    $field->save();
+    $this->drupalGet('entity_test/add');
+    // We should see the 'format' selector again.
+    $this->assertSession()->fieldExists("{$field_name}[0][value]", NULL);
+    $this->assertSession()->optionExists("{$field_name}[0][format]", $format1->id());
+    $this->assertSession()->optionExists("{$field_name}[0][format]", $format2->id());
+    $this->assertSession()->optionNotExists("{$field_name}[0][format]", $format3->id());
+
+    // Change field to allow all formats by configuring none as allowed.
+    $field->setSetting('allowed_formats', []);
+    $field->save();
+    $this->drupalGet('entity_test/add');
+    // We should see the 'format' selector again.
+    $this->assertSession()->fieldExists("{$field_name}[0][value]", NULL);
+    $this->assertSession()->optionExists("{$field_name}[0][format]", $format1->id());
+    $this->assertSession()->optionExists("{$field_name}[0][format]", $format2->id());
+    $this->assertSession()->optionExists("{$field_name}[0][format]", $format3->id());
+  }
+
+  /**
+   * Helper function for testTextfieldWidgetsFormatted().
+   */
+  public function _testTextfieldWidgetsFormatted($field_type, $widget_type): void {
+    // Create a field.
+    $field_name = $this->randomMachineName();
+    $field_storage = FieldStorageConfig::create([
+      'field_name' => $field_name,
+      'entity_type' => 'entity_test',
+      'type' => $field_type,
+    ]);
+    $field_storage->save();
+    FieldConfig::create([
+      'field_storage' => $field_storage,
+      'bundle' => 'entity_test',
+      'label' => $this->randomMachineName() . '_label',
+    ])->save();
+    /** @var \Drupal\Core\Entity\EntityDisplayRepositoryInterface $display_repository */
+    $display_repository = \Drupal::service('entity_display.repository');
+    $display_repository->getFormDisplay('entity_test', 'entity_test')
+      ->setComponent($field_name, [
+        'type' => $widget_type,
+      ])
+      ->save();
+    $display_repository->getViewDisplay('entity_test', 'entity_test', 'full')
+      ->setComponent($field_name)
+      ->save();
+
+    // Disable all text formats besides the plain text fallback format.
+    $this->drupalLogin($this->adminUser);
+    foreach (filter_formats() as $format) {
+      if (!$format->isFallbackFormat()) {
+        $this->drupalGet('admin/config/content/formats/manage/' . $format->id() . '/disable');
+        $this->submitForm([], 'Disable');
+      }
+    }
+    $this->drupalLogin($this->webUser);
+
+    // Display the creation form. Since the user only has access to one format,
+    // no format selector will be displayed.
+    $this->drupalGet('entity_test/add');
+    $this->assertSession()->fieldValueEquals("{$field_name}[0][value]", '');
+    $this->assertSession()->fieldNotExists("{$field_name}[0][format]");
+
+    // Submit with data that should be filtered.
+    $value = '<em>' . $this->randomMachineName() . '</em>';
+    $edit = [
+      "{$field_name}[0][value]" => $value,
+    ];
+    $this->submitForm($edit, 'Save');
+    preg_match('|entity_test/manage/(\d+)|', $this->getUrl(), $match);
+    $id = $match[1];
+    $this->assertSession()->pageTextContains('entity_test ' . $id . ' has been created.');
+
+    // Display the entity.
+    $entity = EntityTest::load($id);
+    $display = $display_repository->getViewDisplay($entity->getEntityTypeId(), $entity->bundle(), 'full');
+    $content = $display->build($entity);
+    $rendered_entity = \Drupal::service('renderer')->renderRoot($content);
+    $this->assertStringNotContainsString($value, (string) $rendered_entity);
+    $this->assertStringContainsString(Html::escape($value), (string) $rendered_entity);
+
+    // Create a new text format that does not escape HTML, and grant the user
+    // access to it.
+    $this->drupalLogin($this->adminUser);
+    $edit = [
+      'format' => $this->randomMachineName(),
+      'name' => $this->randomMachineName(),
+    ];
+    $this->drupalGet('admin/config/content/formats/add');
+    $this->submitForm($edit, 'Save configuration');
+    filter_formats_reset();
+    $format = FilterFormat::load($edit['format']);
+    $format_id = $format->id();
+    $permission = $format->getPermissionName();
+    $roles = $this->webUser->getRoles();
+    $rid = $roles[0];
+    user_role_grant_permissions($rid, [$permission]);
+    $this->drupalLogin($this->webUser);
+
+    // Display edition form.
+    // We should now have a 'text format' selector.
+    $this->drupalGet('entity_test/manage/' . $id . '/edit');
+    $this->assertSession()->fieldExists("{$field_name}[0][value]");
+    $this->assertSession()->fieldExists("{$field_name}[0][format]");
+
+    // Edit and change the text format to the new one that was created.
+    $edit = [
+      "{$field_name}[0][format]" => $format_id,
+    ];
+    $this->submitForm($edit, 'Save');
+    $this->assertSession()->pageTextContains('entity_test ' . $id . ' has been updated.');
+
+    // Display the entity.
+    $entity = EntityTest::load($id);
+    $display = $display_repository->getViewDisplay($entity->getEntityTypeId(), $entity->bundle(), 'full');
+    $content = $display->build($entity);
+    $rendered_entity = \Drupal::service('renderer')->renderRoot($content);
+    $this->assertStringContainsString($value, (string) $rendered_entity);
+  }
+
+}

web/core/modules/text/tests/src/FunctionalJavascript/TextareaWithSummaryTest.php

@@ -0,0 +1,145 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\Tests\text\FunctionalJavascript;
+
+use Drupal\field\Entity\FieldConfig;
+use Drupal\field\Entity\FieldStorageConfig;
+use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
+
+/**
+ * Tests the JavaScript functionality of the text_textarea_with_summary widget.
+ *
+ * @group text
+ */
+class TextareaWithSummaryTest extends WebDriverTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $modules = ['text', 'node'];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected $defaultTheme = 'stark';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp(): void {
+    parent::setUp();
+
+    $this->drupalCreateContentType(['type' => 'page']);
+
+    $account = $this->drupalCreateUser([
+      'create page content',
+      'edit own page content',
+    ]);
+    $this->drupalLogin($account);
+  }
+
+  /**
+   * Helper to test toggling the summary area.
+   *
+   * @internal
+   */
+  protected function assertSummaryToggle(): void {
+    $this->drupalGet('node/add/page');
+    $widget = $this->getSession()->getPage()->findById('edit-body-wrapper');
+    $summary_field = $widget->findField('edit-body-0-summary');
+
+    $this->assertEquals(FALSE, $summary_field->isVisible(), 'Summary field is hidden by default.');
+    $this->assertEquals(FALSE, $widget->hasButton('Hide summary'), 'No Hide summary link by default.');
+
+    $widget->pressButton('Edit summary');
+    $this->assertEquals(FALSE, $widget->hasButton('Edit summary'), 'Edit summary link is removed after clicking.');
+    $this->assertEquals(TRUE, $summary_field->isVisible(), 'Summary field is shown.');
+
+    $widget->pressButton('Hide summary');
+    $this->assertEquals(FALSE, $widget->hasButton('Hide summary'), 'Hide summary link is removed after clicking.');
+    $this->assertEquals(FALSE, $summary_field->isVisible(), 'Summary field is hidden again.');
+    $this->assertEquals(TRUE, $widget->hasButton('Edit summary'), 'Edit summary link is visible again.');
+  }
+
+  /**
+   * Tests the textSummary javascript behavior.
+   */
+  public function testTextSummaryBehavior(): void {
+    // Test with field defaults.
+    $this->assertSummaryToggle();
+
+    // Repeat test with non-empty field description.
+    $body_field = FieldConfig::loadByName('node', 'page', 'body');
+    $body_field->set('description', 'Text with Summary field description.');
+    $body_field->save();
+
+    $this->assertSummaryToggle();
+
+    // Repeat test with unlimited cardinality field.
+    $body_field_storage = FieldStorageConfig::loadByName('node', 'body');
+    $body_field_storage->setCardinality(-1);
+    $body_field_storage->save();
+
+    $this->assertSummaryToggle();
+
+    // Test summary is shown when non-empty.
+    $node = $this->createNode([
+      'body' => [
+        [
+          'value' => $this->randomMachineName(32),
+          'summary' => $this->randomMachineName(32),
+          'format' => filter_default_format(),
+        ],
+      ],
+    ]);
+
+    $this->drupalGet('node/' . $node->id() . '/edit');
+    $summary_field = $this->getSession()->getPage()->findField('edit-body-0-summary');
+
+    $this->assertEquals(TRUE, $summary_field->isVisible());
+  }
+
+  /**
+   * Tests that the textSummary behavior is not run for required summary fields.
+   */
+  public function testTextSummaryRequiredBehavior(): void {
+    // Test with field defaults.
+    $this->assertSummaryToggle();
+
+    // Create a second field with a required summary.
+    $field_name = $this->randomMachineName();
+    $field_storage = FieldStorageConfig::create([
+      'field_name' => $field_name,
+      'entity_type' => 'node',
+      'type' => 'text_with_summary',
+    ]);
+    $field_storage->save();
+    FieldConfig::create([
+      'field_storage' => $field_storage,
+      'bundle' => 'page',
+      'label' => $this->randomMachineName() . '_label',
+      'settings' => [
+        'display_summary' => TRUE,
+        'required_summary' => TRUE,
+      ],
+    ])->save();
+
+    /** @var \Drupal\Core\Entity\EntityDisplayRepositoryInterface $display_repository */
+    $display_repository = \Drupal::service('entity_display.repository');
+
+    $display_repository->getFormDisplay('node', 'page')
+      ->setComponent($field_name, [
+        'type' => 'text_textarea_with_summary',
+      ])
+      ->save();
+
+    $this->drupalGet('node/add/page');
+    $page = $this->getSession()->getPage();
+    $summary_field = $page->findField('edit-' . $field_name . '-0-summary');
+
+    $this->assertEquals(TRUE, $summary_field->isVisible());
+  }
+
+}

web/core/modules/text/tests/src/Kernel/Migrate/MigrateTextConfigsTest.php

@@ -0,0 +1,36 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\Tests\text\Kernel\Migrate;
+
+use Drupal\Tests\SchemaCheckTestTrait;
+use Drupal\Tests\migrate_drupal\Kernel\d6\MigrateDrupal6TestBase;
+
+/**
+ * Upgrade variables to text.settings.yml.
+ *
+ * @group migrate_drupal_6
+ */
+class MigrateTextConfigsTest extends MigrateDrupal6TestBase {
+
+  use SchemaCheckTestTrait;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp(): void {
+    parent::setUp();
+    $this->executeMigration('text_settings');
+  }
+
+  /**
+   * Tests migration of text variables to text.settings.yml.
+   */
+  public function testTextSettings(): void {
+    $config = $this->config('text.settings');
+    $this->assertSame(456, $config->get('default_summary_length'));
+    $this->assertConfigSchema(\Drupal::service('config.typed'), 'text.settings', $config->get());
+  }
+
+}

web/core/modules/text/tests/src/Kernel/TextFormatterTest.php

@@ -0,0 +1,98 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\Tests\text\Kernel;
+
+use Drupal\field\Entity\FieldConfig;
+use Drupal\filter\Entity\FilterFormat;
+use Drupal\KernelTests\Core\Entity\EntityKernelTestBase;
+use Drupal\field\Entity\FieldStorageConfig;
+
+/**
+ * Tests the text formatters functionality.
+ *
+ * @group text
+ */
+class TextFormatterTest extends EntityKernelTestBase {
+
+  /**
+   * The entity type used in this test.
+   *
+   * @var string
+   */
+  protected $entityType = 'entity_test';
+
+  /**
+   * The bundle used in this test.
+   *
+   * @var string
+   */
+  protected $bundle = 'entity_test';
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $modules = ['text'];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp(): void {
+    parent::setUp();
+
+    FilterFormat::create([
+      'format' => 'my_text_format',
+      'name' => 'My text format',
+      'filters' => [
+        'filter_autop' => [
+          'module' => 'filter',
+          'status' => TRUE,
+        ],
+      ],
+    ])->save();
+
+    FieldStorageConfig::create([
+      'field_name' => 'formatted_text',
+      'entity_type' => $this->entityType,
+      'type' => 'text',
+      'settings' => [],
+    ])->save();
+    FieldConfig::create([
+      'entity_type' => $this->entityType,
+      'bundle' => $this->bundle,
+      'field_name' => 'formatted_text',
+      'label' => 'Filtered text',
+    ])->save();
+  }
+
+  /**
+   * Tests all text field formatters.
+   */
+  public function testFormatters(): void {
+    $formatters = [
+      'text_default',
+      'text_trimmed',
+      'text_summary_or_trimmed',
+    ];
+
+    // Create the entity to be referenced.
+    $entity = $this->container->get('entity_type.manager')
+      ->getStorage($this->entityType)
+      ->create(['name' => $this->randomMachineName()]);
+    $entity->formatted_text = [
+      'value' => 'Hello, world!',
+      'format' => 'my_text_format',
+    ];
+    $entity->save();
+
+    foreach ($formatters as $formatter) {
+      // Verify the text field formatter's render array.
+      $build = $entity->get('formatted_text')->view(['type' => $formatter]);
+      \Drupal::service('renderer')->renderRoot($build[0]);
+      $this->assertSame("<p>Hello, world!</p>\n", (string) $build[0]['#markup']);
+      $this->assertEquals(FilterFormat::load('my_text_format')->getCacheTags(), $build[0]['#cache']['tags'], "The $formatter formatter has the expected cache tags when formatting a formatted text field.");
+    }
+  }
+
+}

web/core/modules/text/tests/src/Kernel/TextItemBaseTest.php

@@ -0,0 +1,107 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\Tests\text\Kernel;
+
+use Drupal\Core\Field\BaseFieldDefinition;
+use Drupal\field\Entity\FieldConfig;
+use Drupal\field\Entity\FieldStorageConfig;
+use Drupal\filter\Entity\FilterFormat;
+use Drupal\KernelTests\KernelTestBase;
+use Drupal\text\Plugin\Field\FieldType\TextItemBase;
+
+/**
+ * Tests TextItemBase.
+ *
+ * @coversDefaultClass \Drupal\text\Plugin\Field\FieldType\TextItemBase
+ * @group text
+ */
+class TextItemBaseTest extends KernelTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $modules = ['filter', 'text', 'entity_test', 'field', 'user'];
+
+  /**
+   * Tests creation of sample values.
+   *
+   * @covers ::generateSampleValue
+   * @dataProvider providerTextFieldSampleValue
+   */
+  public function testTextFieldSampleValue($max_length): void {
+    // Create a text field.
+    $field_definition = BaseFieldDefinition::create('text')
+      ->setTargetEntityTypeId('foo');
+
+    // Ensure testing of max_lengths from 1 to 3 because generateSampleValue
+    // creates a sentence with a maximum number of words set to 1/3 of the
+    // max_length of the field.
+    $field_definition->setSetting('max_length', $max_length);
+    $sample_value = TextItemBase::generateSampleValue($field_definition);
+    $this->assertEquals($max_length, strlen($sample_value['value']));
+  }
+
+  /**
+   * Data provider for testTextFieldSampleValue.
+   */
+  public static function providerTextFieldSampleValue() {
+    return [
+      [
+        1,
+      ],
+      [
+        2,
+      ],
+      [
+        3,
+      ],
+      [
+        4,
+      ],
+    ];
+  }
+
+  /**
+   * @covers ::calculateDependencies
+   */
+  public function testCalculateDependencies(): void {
+    $this->installEntitySchema('user');
+    $this->installEntitySchema('entity_test');
+    $format = FilterFormat::create([
+      'format' => 'test_format',
+      'name' => 'Test format',
+    ]);
+    $format->save();
+    $fieldName = $this->randomMachineName();
+    $field_storage = FieldStorageConfig::create([
+      'field_name' => $fieldName,
+      'entity_type' => 'entity_test',
+      'type' => 'text',
+    ]);
+    $field_storage->save();
+    $field = FieldConfig::create([
+      'field_name' => $fieldName,
+      'entity_type' => 'entity_test',
+      'bundle' => 'entity_test',
+      'settings' => [
+        'allowed_formats' => [$format->id()],
+      ],
+    ]);
+    $field->save();
+
+    $field->calculateDependencies();
+    $this->assertEquals([
+      'module' => [
+        'entity_test',
+        'text',
+      ],
+      'config' => [
+        "field.storage.entity_test.$fieldName",
+        'filter.format.test_format',
+      ],
+    ], $field->getDependencies());
+  }
+
+}

web/core/modules/text/tests/src/Kernel/TextSummaryTest.php

@@ -0,0 +1,365 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\Tests\text\Kernel;
+
+use Drupal\Core\Entity\Entity\EntityFormDisplay;
+use Drupal\entity_test\Entity\EntityTest;
+use Drupal\field\Entity\FieldConfig;
+use Drupal\field\Entity\FieldStorageConfig;
+use Drupal\filter\Render\FilteredMarkup;
+use Drupal\KernelTests\KernelTestBase;
+use Drupal\filter\Entity\FilterFormat;
+use Drupal\Tests\user\Traits\UserCreationTrait;
+
+/**
+ * Tests text_summary() with different strings and lengths.
+ *
+ * @group text
+ */
+class TextSummaryTest extends KernelTestBase {
+
+  use UserCreationTrait;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $modules = [
+    'system',
+    'user',
+    'filter',
+    'text',
+    'field',
+    'entity_test',
+  ];
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp(): void {
+    parent::setUp();
+
+    $this->installConfig(['text']);
+  }
+
+  /**
+   * Tests text summaries for a question followed by a sentence.
+   */
+  public function testFirstSentenceQuestion(): void {
+    $text = 'A question? A sentence. Another sentence.';
+    $expected = 'A question? A sentence.';
+    $this->assertTextSummary($text, $expected, NULL, 30);
+  }
+
+  /**
+   * Tests summary with long example.
+   */
+  public function testLongSentence(): void {
+    // 125.
+    // cSpell:disable
+    $text =
+      'Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. ' .
+      // 108.
+      'Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. ' .
+      // 103.
+      'Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. ' .
+      // 110.
+      'Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.';
+    $expected = 'Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. ' .
+                'Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. ' .
+                'Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.';
+    // cSpell:enable
+    // First three sentences add up to: 336, so add one for space and then 3 to
+    // get half-way into next word.
+    $this->assertTextSummary($text, $expected, NULL, 340);
+  }
+
+  /**
+   * Tests various summary length edge cases.
+   */
+  public function testLength(): void {
+    FilterFormat::create([
+      'format' => 'autop',
+      'name' => 'Autop',
+      'filters' => [
+        'filter_autop' => [
+          'status' => 1,
+        ],
+      ],
+    ])->save();
+    FilterFormat::create([
+      'format' => 'autop_correct',
+      'name' => 'Autop correct',
+      'filters' => [
+        'filter_autop' => [
+          'status' => 1,
+        ],
+        'filter_htmlcorrector' => [
+          'status' => 1,
+        ],
+      ],
+    ])->save();
+
+    // This string tests a number of edge cases.
+    $text = "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>";
+
+    // The summaries we expect text_summary() to return when $size is the index
+    // of each array item.
+    // Using no text format:
+    $format = NULL;
+    $i = 0;
+    $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<", $format, $i++);
+    $this->assertTextSummary($text, "<p", $format, $i++);
+    $this->assertTextSummary($text, "<p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\n", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nH", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n<", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+
+    // Using a text format with filter_autop enabled.
+    $format = 'autop';
+    $i = 0;
+    $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<", $format, $i++);
+    $this->assertTextSummary($text, "<p", $format, $i++);
+    $this->assertTextSummary($text, "<p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+
+    // Using a text format with filter_autop and filter_htmlcorrector enabled.
+    $format = 'autop_correct';
+    $i = 0;
+    $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "", $format, $i++);
+    $this->assertTextSummary($text, "<p></p>", $format, $i++);
+    $this->assertTextSummary($text, "<p></p>", $format, $i++);
+    $this->assertTextSummary($text, "<p></p>", $format, $i++);
+    $this->assertTextSummary($text, "<p></p>", $format, $i++);
+    $this->assertTextSummary($text, "<p></p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+    $this->assertTextSummary($text, "<p>\nHi\n</p>\n<p>\nfolks\n<br />\n!\n</p>", $format, $i++);
+  }
+
+  /**
+   * Tests text summaries with an invalid filter format.
+   *
+   * @see text_summary()
+   */
+  public function testInvalidFilterFormat(): void {
+
+    $this->assertTextSummary($this->randomString(100), '', 'non_existent_format');
+  }
+
+  /**
+   * Calls text_summary() and asserts that the expected teaser is returned.
+   *
+   * @internal
+   */
+  public function assertTextSummary(string $text, string $expected, ?string $format = NULL, ?int $size = NULL): void {
+    $summary = text_summary($text, $format, $size);
+    $this->assertSame($expected, $summary, '<pre style="white-space: pre-wrap">' . $summary . '</pre> is identical to <pre style="white-space: pre-wrap">' . $expected . '</pre>');
+  }
+
+  /**
+   * Tests required summary.
+   */
+  public function testRequiredSummary(): void {
+    $this->installEntitySchema('user');
+    $this->installEntitySchema('entity_test');
+    $this->setUpCurrentUser();
+    $field_definition = FieldStorageConfig::create([
+      'field_name' => 'test_text_with_summary',
+      'type' => 'text_with_summary',
+      'entity_type' => 'entity_test',
+      'cardinality' => 1,
+      'settings' => [
+        'max_length' => 200,
+      ],
+    ]);
+    $field_definition->save();
+
+    $instance = FieldConfig::create([
+      'field_name' => 'test_text_with_summary',
+      'label' => 'A text field',
+      'entity_type' => 'entity_test',
+      'bundle' => 'entity_test',
+      'settings' => [
+        'text_processing' => TRUE,
+        'display_summary' => TRUE,
+        'required_summary' => TRUE,
+      ],
+    ]);
+    $instance->save();
+
+    EntityFormDisplay::create([
+      'targetEntityType' => 'entity_test',
+      'bundle' => 'entity_test',
+      'mode' => 'default',
+      'status' => TRUE,
+    ])->setComponent('test_text_with_summary', [
+      'type' => 'text_textarea_with_summary',
+      'settings' => [
+        'summary_rows' => 2,
+        'show_summary' => TRUE,
+      ],
+    ])
+      ->save();
+
+    // Check the required summary.
+    $entity = EntityTest::create([
+      'name' => $this->randomMachineName(),
+      'type' => 'entity_test',
+      'test_text_with_summary' => ['value' => $this->randomMachineName()],
+    ]);
+    $form = \Drupal::service('entity.form_builder')->getForm($entity);
+    $this->assertNotEmpty($form['test_text_with_summary']['widget'][0]['summary'], 'Summary field is shown');
+    $this->assertNotEmpty($form['test_text_with_summary']['widget'][0]['summary']['#required'], 'Summary field is required');
+
+    // Test validation.
+    /** @var \Symfony\Component\Validator\ConstraintViolation[] $violations */
+    $violations = $entity->validate();
+    $this->assertCount(1, $violations);
+    $this->assertEquals('test_text_with_summary.0.summary', $violations[0]->getPropertyPath());
+    $this->assertEquals('The summary field is required for A text field', $violations[0]->getMessage());
+  }
+
+  /**
+   * Test text normalization when filter_html or filter_htmlcorrector enabled.
+   */
+  public function testNormalization(): void {
+    FilterFormat::create([
+      'format' => 'filter_html_enabled',
+      'name' => 'Filter HTML enabled',
+      'filters' => [
+        'filter_html' => [
+          'status' => 1,
+          'settings' => [
+            'allowed_html' => '<strong>',
+          ],
+        ],
+      ],
+    ])->save();
+    FilterFormat::create([
+      'format' => 'filter_htmlcorrector_enabled',
+      'name' => 'Filter HTML corrector enabled',
+      'filters' => [
+        'filter_htmlcorrector' => [
+          'status' => 1,
+        ],
+      ],
+    ])->save();
+    FilterFormat::create([
+      'format' => 'neither_filter_enabled',
+      'name' => 'Neither filter enabled',
+      'filters' => [],
+    ])->save();
+
+    $filtered_markup = FilteredMarkup::create('<div><strong><span>Hello World</span></strong></div>');
+    // With either HTML filter enabled, text_summary() will normalize the text
+    // using HTML::normalize().
+    $summary = text_summary($filtered_markup, 'filter_html_enabled', 30);
+    $this->assertStringContainsString('<div><strong><span>', $summary);
+    $this->assertStringContainsString('</span></strong></div>', $summary);
+    $summary = text_summary($filtered_markup, 'filter_htmlcorrector_enabled', 30);
+    $this->assertStringContainsString('<div><strong><span>', $summary);
+    $this->assertStringContainsString('</span></strong></div>', $summary);
+    // If neither filter is enabled, the text will not be normalized.
+    $summary = text_summary($filtered_markup, 'neither_filter_enabled', 30);
+    $this->assertStringContainsString('<div><strong><span>', $summary);
+    $this->assertStringNotContainsString('</span></strong></div>', $summary);
+  }
+
+}

web/core/modules/text/tests/src/Kernel/TextWithSummaryItemTest.php

@@ -0,0 +1,122 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\Tests\text\Kernel;
+
+use Drupal\Core\Field\FieldItemListInterface;
+use Drupal\Core\Field\FieldItemInterface;
+use Drupal\field\Entity\FieldConfig;
+use Drupal\Tests\field\Kernel\FieldKernelTestBase;
+use Drupal\field\Entity\FieldStorageConfig;
+use Drupal\filter\Entity\FilterFormat;
+
+/**
+ * Tests using entity fields of the text summary field type.
+ *
+ * @group text
+ */
+class TextWithSummaryItemTest extends FieldKernelTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  protected static $modules = ['filter'];
+
+  /**
+   * Field storage entity.
+   *
+   * @var \Drupal\field\Entity\FieldStorageConfig
+   */
+  protected $fieldStorage;
+
+  /**
+   * Field entity.
+   *
+   * @var \Drupal\field\Entity\FieldConfig
+   */
+  protected $field;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp(): void {
+    parent::setUp();
+
+    $this->installEntitySchema('entity_test_rev');
+
+    // Create the necessary formats.
+    $this->installConfig(['filter']);
+    FilterFormat::create([
+      'format' => 'no_filters',
+      'name' => 'No filters',
+      'filters' => [],
+    ])->save();
+  }
+
+  /**
+   * Tests processed properties.
+   */
+  public function testCrudAndUpdate(): void {
+    $entity_type = 'entity_test';
+    $this->createField($entity_type);
+
+    // Create an entity with a summary and no text format.
+    $storage = $this->container->get('entity_type.manager')
+      ->getStorage($entity_type);
+    $entity = $storage->create();
+    $entity->summary_field->value = $value = $this->randomMachineName();
+    $entity->summary_field->summary = $summary = $this->randomMachineName();
+    $entity->summary_field->format = NULL;
+    $entity->name->value = $this->randomMachineName();
+    $entity->save();
+
+    $entity = $storage->load($entity->id());
+    $this->assertInstanceOf(FieldItemListInterface::class, $entity->summary_field);
+    $this->assertInstanceOf(FieldItemInterface::class, $entity->summary_field[0]);
+    $this->assertEquals($value, $entity->summary_field->value);
+    $this->assertEquals($summary, $entity->summary_field->summary);
+    $this->assertNull($entity->summary_field->format);
+    // Even if no format is given, if text processing is enabled, the default
+    // format is used.
+    $this->assertSame("<p>{$value}</p>\n", (string) $entity->summary_field->processed);
+    $this->assertSame("<p>{$summary}</p>\n", (string) $entity->summary_field->summary_processed);
+
+    // Change the format, this should update the processed properties.
+    $entity->summary_field->format = 'no_filters';
+    $this->assertSame($value, (string) $entity->summary_field->processed);
+    $this->assertSame($summary, (string) $entity->summary_field->summary_processed);
+
+    // Test the generateSampleValue() method.
+    $entity = $this->container->get('entity_type.manager')
+      ->getStorage($entity_type)
+      ->create();
+    $entity->summary_field->generateSampleItems();
+    $this->entityValidateAndSave($entity);
+  }
+
+  /**
+   * Creates a text_with_summary field storage and field.
+   *
+   * @param string $entity_type
+   *   Entity type for which the field should be created.
+   */
+  protected function createField($entity_type): void {
+    // Create a field .
+    $this->fieldStorage = FieldStorageConfig::create([
+      'field_name' => 'summary_field',
+      'entity_type' => $entity_type,
+      'type' => 'text_with_summary',
+      'settings' => [
+        'max_length' => 10,
+      ],
+    ]);
+    $this->fieldStorage->save();
+    $this->field = FieldConfig::create([
+      'field_storage' => $this->fieldStorage,
+      'bundle' => $entity_type,
+    ]);
+    $this->field->save();
+  }
+
+}

web/core/modules/text/tests/src/Unit/Plugin/migrate/field/d6/TextFieldTest.php

@@ -0,0 +1,177 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\Tests\text\Unit\Plugin\migrate\field\d6;
+
+use Drupal\migrate\Plugin\MigrationInterface;
+use Drupal\migrate\Row;
+use Drupal\Tests\UnitTestCase;
+use Drupal\text\Plugin\migrate\field\d6\TextField;
+use Prophecy\Argument;
+
+// cspell:ignore optionwidgets
+
+/**
+ * @coversDefaultClass \Drupal\text\Plugin\migrate\field\d6\TextField
+ * @group text
+ */
+class TextFieldTest extends UnitTestCase {
+
+  /**
+   * The migration field plugin to test.
+   *
+   * @var \Drupal\migrate_drupal\Plugin\MigrateFieldInterface
+   */
+  protected $plugin;
+
+  /**
+   * The migration object.
+   *
+   * @var \Drupal\migrate\Plugin\MigrationInterface
+   */
+  protected $migration;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp(): void {
+    parent::setUp();
+
+    $this->plugin = new TextField([], 'text', []);
+
+    $migration = $this->prophesize(MigrationInterface::class);
+
+    // The plugin's defineValueProcessPipeline() method will call
+    // setProcessOfProperty() and return nothing. So, in order to examine the
+    // process pipeline created by the plugin, we need to ensure that
+    // getProcess() always returns the last input to setProcessOfProperty().
+    $migration->setProcessOfProperty(Argument::type('string'), Argument::type('array'))
+      ->will(function ($arguments) use ($migration) {
+        $migration->getProcess()->willReturn($arguments[1]);
+      });
+
+    $this->migration = $migration->reveal();
+  }
+
+  /**
+   * @covers ::defineValueProcessPipeline
+   */
+  public function testFilteredTextValueProcessPipeline(): void {
+    $field_info = [
+      'widget_type' => 'text_textfield',
+    ];
+    $this->plugin->defineValueProcessPipeline($this->migration, 'body', $field_info);
+
+    $process = $this->migration->getProcess();
+    $this->assertSame('sub_process', $process['plugin']);
+    $this->assertSame('body', $process['source']);
+    $this->assertSame('value', $process['process']['value']);
+
+    // Ensure that filter format IDs will be looked up in the filter format
+    // migrations.
+    $lookup = $process['process']['format'][2];
+    $this->assertSame('migration_lookup', $lookup['plugin']);
+    $this->assertContains('d6_filter_format', $lookup['migration']);
+    $this->assertContains('d7_filter_format', $lookup['migration']);
+    $this->assertSame('format', $lookup['source']);
+  }
+
+  /**
+   * @covers ::defineValueProcessPipeline
+   */
+  public function testBooleanTextImplicitValueProcessPipeline(): void {
+    $info = [
+      'widget_type' => 'optionwidgets_onoff',
+      'global_settings' => [
+        'allowed_values' => "foo\nbar",
+      ],
+    ];
+    $this->plugin->defineValueProcessPipeline($this->migration, 'field', $info);
+
+    $expected = [
+      'value' => [
+        'plugin' => 'static_map',
+        'source' => 'value',
+        'default_value' => 0,
+        'map' => [
+          'bar' => 1,
+        ],
+      ],
+    ];
+    $this->assertSame($expected, $this->migration->getProcess()['process']);
+  }
+
+  /**
+   * @covers ::defineValueProcessPipeline
+   */
+  public function testBooleanTextExplicitValueProcessPipeline(): void {
+    $info = [
+      'widget_type' => 'optionwidgets_onoff',
+      'global_settings' => [
+        'allowed_values' => "foo|Foo\nBaz|Baz",
+      ],
+    ];
+    $this->plugin->defineValueProcessPipeline($this->migration, 'field', $info);
+
+    $expected = [
+      'value' => [
+        'plugin' => 'static_map',
+        'source' => 'value',
+        'default_value' => 0,
+        'map' => [
+          'Baz' => 1,
+        ],
+      ],
+    ];
+    $this->assertSame($expected, $this->migration->getProcess()['process']);
+  }
+
+  /**
+   * Data provider for testGetFieldType().
+   */
+  public static function getFieldTypeProvider() {
+    return [
+      ['string_long', 'text_textfield', ['text_processing' => FALSE]],
+      ['string', 'text_textfield', [
+        'text_processing' => FALSE,
+        'max_length' => 128,
+      ],
+      ],
+      ['string_long', 'text_textfield', [
+        'text_processing' => FALSE,
+        'max_length' => 4096,
+      ],
+      ],
+      ['text_long', 'text_textfield', ['text_processing' => TRUE]],
+      ['text', 'text_textfield', [
+        'text_processing' => TRUE,
+        'max_length' => 128,
+      ],
+      ],
+      ['text_long', 'text_textfield', [
+        'text_processing' => TRUE,
+        'max_length' => 4096,
+      ],
+      ],
+      ['list_string', 'optionwidgets_buttons'],
+      ['list_string', 'optionwidgets_select'],
+      ['boolean', 'optionwidgets_onoff'],
+      ['text_long', 'text_textarea', ['text_processing' => TRUE]],
+      ['string_long', 'text_textarea', ['text_processing' => FALSE]],
+      [NULL, 'undefined'],
+    ];
+  }
+
+  /**
+   * @covers ::getFieldType
+   * @dataProvider getFieldTypeProvider
+   */
+  public function testGetFieldType($expected_type, $widget_type, array $settings = []): void {
+    $row = new Row();
+    $row->setSourceProperty('widget_type', $widget_type);
+    $row->setSourceProperty('global_settings', $settings);
+    $this->assertSame($expected_type, $this->plugin->getFieldType($row));
+  }
+
+}

web/core/modules/text/tests/src/Unit/Plugin/migrate/field/d7/TextFieldTest.php

@@ -0,0 +1,65 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Drupal\Tests\text\Unit\Plugin\migrate\field\d7;
+
+use Drupal\migrate\Row;
+use Drupal\Tests\UnitTestCase;
+use Drupal\text\Plugin\migrate\field\d7\TextField;
+
+/**
+ * @coversDefaultClass \Drupal\text\Plugin\migrate\field\d7\TextField
+ * @group text
+ */
+class TextFieldTest extends UnitTestCase {
+
+  /**
+   * The migration field plugin.
+   *
+   * @var \Drupal\migrate_drupal\Plugin\MigrateFieldInterface
+   */
+  protected $plugin;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp(): void {
+    parent::setUp();
+
+    $this->plugin = new TextField([], 'text', []);
+  }
+
+  /**
+   * Data provider for testGetFieldFormatterType().
+   */
+  public static function getFieldFormatterTypeProvider() {
+    return [
+      ['text', 'text_plain', 'string'],
+      ['text_long', 'text_default', 'basic_string'],
+      ['text_long', 'text_plain', 'basic_string'],
+    ];
+  }
+
+  /**
+   * @covers ::getFieldFormatterType
+   * @covers ::getFieldType
+   * @dataProvider getFieldFormatterTypeProvider
+   */
+  public function testGetFieldFormatterType($type, $formatter_type, $expected): void {
+    $row = new Row();
+    $row->setSourceProperty('type', $type);
+    $row->setSourceProperty('formatter/type', $formatter_type);
+    $row->setSourceProperty('instances', [
+      [
+        'data' => serialize([
+          'settings' => [
+            'text_processing' => '0',
+          ],
+        ]),
+      ],
+    ]);
+    $this->assertEquals($expected, $this->plugin->getFieldFormatterType($row));
+  }
+
+}

web/core/modules/text/text.field_type_categories.yml

@@ -0,0 +1,6 @@
+formatted_text:
+  label: 'Formatted text'
+  description: 'Text field with markup support and optional editor.'
+  weight: -45
+  libraries:
+    - text/drupal.text-icon

web/core/modules/text/text.info.yml

@@ -0,0 +1,8 @@
+name: Text
+type: module
+description: 'Defines field types for short and long text with optional summaries.'
+package: Field types
+version: VERSION
+dependencies:
+  - drupal:field
+  - drupal:filter

web/core/modules/text/text.libraries.yml

@@ -0,0 +1,23 @@
+drupal.text:
+  version: VERSION
+  js:
+    js/text.js: {}
+  dependencies:
+    - core/jquery
+    - core/once
+    - core/drupal
+  moved_files:
+    text/text.js:
+      deprecation_version: drupal:11.1.0
+      removed_version: drupal:12.0.0
+      deprecation_link: https://www.drupal.org/node/3471539
+      js:
+        text.js: 'js/text.js'
+
+drupal.text-icon:
+  version: VERSION
+  css:
+    theme:
+      css/text.icon.theme.css: {}
+  dependencies:
+    - field_ui/drupal.field_ui.manage_fields

web/core/modules/text/text.module

@@ -0,0 +1,136 @@
+<?php
+
+/**
+ * @file
+ */
+
+use Drupal\Component\Utility\Html;
+use Drupal\Component\Utility\Unicode;
+use Drupal\filter\Entity\FilterFormat;
+
+/**
+ * Generates a trimmed, formatted version of a text field value.
+ *
+ * If the end of the summary is not indicated using the <!--break--> delimiter
+ * then we generate the summary automatically, trying to end it at a sensible
+ * place such as the end of a paragraph, a line break, or the end of a sentence
+ * (in that order of preference).
+ *
+ * @param string $text
+ *   The content for which a summary will be generated.
+ * @param string $format
+ *   The format of the content. If the line break filter is present then we
+ *   treat newlines embedded in $text as line breaks. If the htmlcorrector
+ *   filter is present, it will be run on the generated summary (if different
+ *   from the incoming $text).
+ * @param string|null $size
+ *   The desired character length of the summary. If omitted, the default value
+ *   will be used. Ignored if the special delimiter is present in $text.
+ *
+ * @return string
+ *   The generated summary.
+ */
+function text_summary($text, $format = NULL, $size = NULL) {
+
+  if (!isset($size)) {
+    $size = \Drupal::config('text.settings')->get('default_summary_length');
+  }
+
+  // Find where the delimiter is in the body.
+  $delimiter = strpos($text, '<!--break-->');
+
+  // If the size is zero, and there is no delimiter, the entire body is the
+  // summary.
+  if ($size == 0 && $delimiter === FALSE) {
+    return $text;
+  }
+
+  // If a valid delimiter has been specified, use it to chop off the summary.
+  if ($delimiter !== FALSE) {
+    return substr($text, 0, $delimiter);
+  }
+
+  // Retrieve the filters of the specified text format, if any.
+  if (isset($format)) {
+    $filter_format = FilterFormat::load($format);
+    // If the specified format does not exist, return nothing. $text is already
+    // filtered text, but the remainder of this function will not be able to
+    // ensure a sane and secure summary.
+    if (!$filter_format || !($filters = $filter_format->filters())) {
+      return '';
+    }
+  }
+
+  // If we have a short body, the entire body is the summary.
+  if (mb_strlen($text) <= $size) {
+    return $text;
+  }
+
+  // If the delimiter has not been specified, try to split at paragraph or
+  // sentence boundaries.
+
+  // The summary may not be longer than maximum length specified. Initial slice.
+  $summary = Unicode::truncate($text, $size);
+
+  // Store the actual length of the UTF8 string -- which might not be the same
+  // as $size.
+  $max_right_pos = strlen($summary);
+
+  // How much to cut off the end of the summary so that it doesn't end in the
+  // middle of a paragraph, sentence, or word.
+  // Initialize it to maximum in order to find the minimum.
+  $min_right_pos = $max_right_pos;
+
+  // Store the reverse of the summary. We use strpos on the reversed needle and
+  // haystack for speed and convenience.
+  $reversed = strrev($summary);
+
+  // Build an array of arrays of break points grouped by preference.
+  $break_points = [];
+
+  // A paragraph near the end of sliced summary is most preferable.
+  $break_points[] = ['</p>' => 0];
+
+  // If no complete paragraph then treat line breaks as paragraphs.
+  $line_breaks = ['<br />' => 6, '<br>' => 4];
+  // Newline only indicates a line break if line break converter
+  // filter is present.
+  if (isset($format) && $filters->has('filter_autop') && $filters->get('filter_autop')->status) {
+    $line_breaks["\n"] = 1;
+  }
+  $break_points[] = $line_breaks;
+
+  // If the first paragraph is too long, split at the end of a sentence.
+  $break_points[] = ['. ' => 1, '! ' => 1, '? ' => 1, '。' => 0, '؟ ' => 1];
+
+  // Iterate over the groups of break points until a break point is found.
+  foreach ($break_points as $points) {
+    // Look for each break point, starting at the end of the summary.
+    foreach ($points as $point => $offset) {
+      // The summary is already reversed, but the break point isn't.
+      $right_pos = strpos($reversed, strrev($point));
+      if ($right_pos !== FALSE) {
+        $min_right_pos = min($right_pos + $offset, $min_right_pos);
+      }
+    }
+
+    // If a break point was found in this group, slice and stop searching.
+    if ($min_right_pos !== $max_right_pos) {
+      // Don't slice with length 0. Length must be <0 to slice from RHS.
+      $summary = ($min_right_pos === 0) ? $summary : substr($summary, 0, 0 - $min_right_pos);
+      break;
+    }
+  }
+
+  // If filter_html or filter_htmlcorrector is enabled, normalize the output.
+  if (isset($format)) {
+    $filter_enabled = function (string $filter) use ($filters) : bool {
+      return $filters->has($filter) && $filters->get($filter)->status;
+    };
+    if ($filter_enabled('filter_html') || $filter_enabled('filter_htmlcorrector')) {
+      $summary = Html::normalize($summary);
+    }
+  }
+
+  return $summary;
+}

web/core/modules/text/text.post_update.php

@@ -0,0 +1,17 @@
+<?php
+
+/**
+ * @file
+ * Contains post update hooks for the text module.
+ */
+
+/**
+ * Implements hook_removed_post_updates().
+ */
+function text_removed_post_updates(): array {
+  return [
+    'text_post_update_add_required_summary_flag' => '9.0.0',
+    'text_post_update_add_required_summary_flag_form_display' => '10.0.0',
+    'text_post_update_allowed_formats' => '11.0.0',
+  ];
+}

web/core/modules/text/text.services.yml

@@ -0,0 +1,2 @@
+parameters:
+  text.skip_procedural_hook_scan: true