reverted:
--- b/config/schema/social_profile_field.schema.yml
+++ /dev/null
@@ -1,20 +0,0 @@
-# Schema for the configuration of the Social profile field type.
-
-field.storage_settings.social_profile_url:
-  type: mapping
-  label: 'Social profile settings'
-
-field.field_settings.social_profile_url:
-  type: mapping
-  label: 'Social profile settings'
-  sequence:
-    - type: string
-      label: 'Setting'
-
-field.value.social_profile_url:
-  type: mapping
-  label: 'Default value'
-  mapping:
-    value:
-      type: url
-      label: 'Value'
diff -u b/js/social_profile_field.js b/js/social_profile_field.js
--- b/js/social_profile_field.js
+++ b/js/social_profile_field.js
@@ -10,7 +10,7 @@
     "use strict";
     Drupal.behaviors.socialProfileField = {
         attach: function (context) {
-            $(document, context).on("change" ,".edit-field-social-profile-url" , function (event) {
+            $(context).on("change" ,".edit-field-social-profile-url" , function (event) {
                 if ($(this).val()) {
                     var url = $.url($(this).val());
                     var domain = url.attr('host').replace('.', '-').replace('.', '-');
@@ -25,8 +25,7 @@
                     }
                 }
             });
-
-            $(".edit-field-social-profile-url", context).change();
+            $(context).find(".edit-field-social-profile-url").change();
         }
     };
 })(jQuery, Drupal, drupalSettings);
diff -u b/social_profile_field.info.yml b/social_profile_field.info.yml
--- b/social_profile_field.info.yml
+++ b/social_profile_field.info.yml
@@ -6,2 +5,0 @@
-dependencies:
-  - field
diff -u b/social_profile_field.libraries.yml b/social_profile_field.libraries.yml
--- b/social_profile_field.libraries.yml
+++ b/social_profile_field.libraries.yml
@@ -10,9 +10,4 @@
-  dependencies:
-    - core/jquery
-    - core/drupalSettings
-social_profile_field.urlparser:
-  version: VERSION
-  js:
     js/jquery.urlparser/jquery.url.js: {}
   dependencies:
     - core/jquery
+    - core/drupalSettings
diff -u b/social_profile_field.module b/social_profile_field.module
--- b/social_profile_field.module
+++ b/social_profile_field.module
@@ -4,33 +4,3 @@
  * @file
- * Social profile field using the Field Types API.
- */
-
-/**
- * @defgroup social_profile_field
- * @ingroup social
- * @{
- *
- * Direct port module from 7.x version.
- *
- * Providing a field requires:
- * - Defining an entity field item. Entity field items are typed data objects
- *   containing the field values.
- *   - Drupal\social_profile_field\Plugin\Field\FieldType\SocialProfileFieldItem
- * - Defining a field type schema at config/schema/[module_name].schema.yml
- *   - config/schema/social_profile_field.schema.yml
- * - Defining a widget for the edit form
- *   - Drupal\social_profile_field\Plugin\Field\FieldWidget\SocialProfileFieldDefaultWidget
- * - Defining a formatter for the field (the portion that outputs the field for
- *   display)
- *   - Drupal\social_profile_field\Plugin\field\formatter\SocialProfileFieldIconsFormatter
- *   - Drupal\social_profile_field\Plugin\field\formatter\SocialProfileFieldListFormatter
- *
- * @todo
- * Port module description from 7.x version after module devpart porting.
- *
- * @see field_types
- * @see field
- * @see schemaapi
- *
- * @} End of "defgroup social".
+ * Define Social profile field type.
  */
reverted:
--- b/src/Plugin/Field/FieldFormatter/SocialProfileFieldIconsFormatter.php
+++ /dev/null
@@ -1,100 +0,0 @@
-<?php
-
-/**
- * @file
- * Contains \Drupal\social_profile_field\Plugin\field\formatter\SocialProfileFieldIconsFormatter.
- */
-
-namespace Drupal\social_profile_field\Plugin\Field\FieldFormatter;
-
-use Drupal\Core\Field\FormatterBase;
-use Drupal\Core\Field\FieldItemListInterface;
-use Drupal\Core\Url;
-
-/**
- * Plugin implementation of the 'social_profile_field_icons' formatter.
- *
- * Outputs Social Network icons linked to user's profiles.
- *
- * @FieldFormatter(
- *   id = "social_profile_field_icons",
- *   label = @Translation("Show Social Networks icons."),
- *   field_types = {
- *     "social_profile_url",
- *   }
- * )
- */
-class SocialProfileFieldIconsFormatter extends FormatterBase {
-
-  /**
-   * {@inheritdoc}
-   */
-  public function viewElements(FieldItemListInterface $items) {
-    $elements = array();
-
-    foreach ($items as $delta => $item) {
-      $class = array('social-link');
-      $domain = $this->_social_profile_field_get_domain($item->value);
-      if ($domain == 'www.youtube.com' || $domain == 'youtube.com') {
-        $class[] = 'fancybox-video';
-      }
-      $elements[$delta] = array(
-        '#markup' => \Drupal::l(
-          $this->_social_profile_field_get_icon($domain),
-          Url::fromUri(
-            trim($item->value), array(
-              'html' => TRUE,
-              'attributes' => array(
-                'class' => $class,
-                'target' => '_blank'
-              )
-            )
-          )
-        ),
-        '#attached' => array(
-          'library' =>  array(
-            'social_profile_field/social_profile_field.css'
-          ),
-        ),
-      );
-    }
-
-    return $elements;
-  }
-
-  /**
-   * Returns domain name (with subdomains) for given URL.
-   * @url string URL.
-   * @result string Domain name.
-   */
-  public function _social_profile_field_get_domain($url) {
-    return parse_url(check_url(trim($url)), PHP_URL_HOST);
-  }
-
-  /**
-   * Returns path to icon file.
-   */
-  public function _social_profile_field_get_icon_path($domain = 'default') {
-    return drupal_get_path('module', 'social_profile_field') . '/icons/' . $domain . '.png';
-  }
-
-  /**
-   * Returns path to social network icon.
-   * @url string URL.
-   * @return string Rendered HTML-code for icon..
-   */
-  public function _social_profile_field_get_icon($domain) {
-    $path = $this->_social_profile_field_get_icon_path($domain);
-    if (!file_exists($path)) {
-      $path = $this->_social_profile_field_get_icon_path();
-    }
-    return array(
-      '#theme' => 'image',
-      '#uri' => $path,
-      '#attributes' => array(
-        'class' => array('social-profile-icon')
-      ),
-    );
-  }
-
-}
reverted:
--- b/src/Plugin/Field/FieldFormatter/SocialProfileFieldListFormatter.php
+++ /dev/null
@@ -1,49 +0,0 @@
-<?php
-
-/**
- * @file
- * Contains \Drupal\social_profile_field\Plugin\field\formatter\SocialProfileFieldListFormatter.
- */
-
-namespace Drupal\social_profile_field\Plugin\Field\FieldFormatter;
-
-use Drupal\Core\Field\FormatterBase;
-use Drupal\Core\Field\FieldItemListInterface;
-use Drupal\Core\Url;
-
-/**
- * Plugin implementation of the 'social_profile_field_list' formatter.
- *
- * Shows list of links.
- *
- * @FieldFormatter(
- *   id = "social_profile_field_list",
- *   label = @Translation("Show list of links to Social Network Profiles."),
- *   field_types = {
- *     "social_profile_url",
- *   }
- * )
- */
-class SocialProfileFieldListFormatter extends FormatterBase {
-
-  /**
-   * {@inheritdoc}
-   */
-  public function viewElements(FieldItemListInterface $items) {
-    $elements = array();
-
-    foreach ($items as $delta => $item) {
-      $elements[$delta] = array(
-        '#markup' => \Drupal::l(
-          $item->value,
-          Url::fromUri(
-            $item->value,
-            array('attributes' => array('class' => array('social-link')))
-          )
-        ),
-      );
-    }
-    return $elements;
-  }
-
-}
diff -u b/src/Plugin/Field/FieldType/SocialProfileFieldItem.php b/src/Plugin/Field/FieldType/SocialProfileFieldItem.php
--- b/src/Plugin/Field/FieldType/SocialProfileFieldItem.php
+++ b/src/Plugin/Field/FieldType/SocialProfileFieldItem.php
@@ -7,8 +7,8 @@
 
 namespace Drupal\social_profile_field\Plugin\Field\FieldType;
 
-use Drupal\Core\Field\FieldItemBase;
 use Drupal\Core\Field\FieldStorageDefinitionInterface;
+use Drupal\Core\Field\Plugin\Field\FieldType\UriItem;
 use Drupal\Core\TypedData\DataDefinition;
 
 /**
@@ -20,33 +20,10 @@
  *   module = "SocialProfileField",
  *   description = @Translation("Handle social profiles links."),
  *   default_widget = "social_profile_field_default",
- *   default_formatter = "social_profile_field_icons"
+ *   default_formatter = "social_profile_field_default"
  * )
  */
-class SocialProfileFieldItem extends FieldItemBase {
-  /**
-   * {@inheritdoc}
-   */
-  public static function schema(FieldStorageDefinitionInterface $field_definition) {
-    return array(
-      'columns' => array(
-        'value' => array(
-          'description' => 'Url to social profile.',
-          'type' => 'varchar',
-          'length' => 255,
-        ),
-      ),
-    );
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function isEmpty() {
-    $value = $this->get('value')->getValue();
-    return $value === '';
-  }
-
+class SocialProfileFieldItem extends UriItem {
   /**
    * {@inheritdoc}
    */
diff -u b/src/Plugin/Field/FieldWidget/SocialProfileFieldDefaultWidget.php b/src/Plugin/Field/FieldWidget/SocialProfileFieldDefaultWidget.php
--- b/src/Plugin/Field/FieldWidget/SocialProfileFieldDefaultWidget.php
+++ b/src/Plugin/Field/FieldWidget/SocialProfileFieldDefaultWidget.php
@@ -7,10 +7,9 @@
 
 namespace Drupal\social_profile_field\Plugin\Field\FieldWidget;
 
+use Drupal\Core\Field\Plugin\Field\FieldWidget\UriWidget;
 use Drupal\Core\Field\FieldItemListInterface;
-use Drupal\Core\Field\WidgetBase;
 use Drupal\Core\Form\FormStateInterface;
-use Drupal\Component\Utility\UrlHelper;
 
 /**
  * Plugin implementation of the 'social_profile_field_default' widget.
@@ -24,41 +23,32 @@
  * )
  */
-class SocialProfileFieldDefaultWidget extends WidgetBase {
+class SocialProfileFieldDefaultWidget extends UriWidget {
   /**
    * {@inheritdoc}
    */
   public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
+    $element = parent::formElement($items, $delta, $element, $form, $form_state);
     $element['value'] = $element + array(
-        '#type' => 'url',
-        '#default_value' => isset($items[$delta]->value) ? $items[$delta]->value : NULL,
-        '#attributes' => array('class' => array('edit-field-social-profile-url')),
-        '#placeholder' => $this->t('Put your social profile url'),
-        '#element_validate' => array(array(get_called_class(), 'validateUriElement')),
-        // Add javascript to show social network icon on the fly:
-        '#attached' => array(
-          'library' =>  array(
-            'social_profile_field/social_profile_field.css',
-            'social_profile_field/social_profile_field.js',
-            'social_profile_field/social_profile_field.urlparser',
-          ),
-        ),      );
+      '#attached' => array(
+        'library' =>  array(
+          'social_profile_field/social_profile_field.css',
+          'social_profile_field/social_profile_field.js',
+        ),
+      ),
+      '#attributes' => array(
+        'class' => array('class')
+      )
+    );
+
     return $element;
   }
 
   /**
-   * Disallows saving inaccessible or untrusted URLs.
-   *
+   * {@inheritdoc}
    */
-  public static function validateUriElement($element, FormStateInterface $form_state, $form) {
-    $uri = $element['#value'];
-
-    if (!empty($uri) && !in_array(parse_url($uri, PHP_URL_SCHEME), UrlHelper::getAllowedProtocols())) {
-      $form_state->setError(
-        $element,
-        t("URL '@link_path' is invalid. Please  check it and provide a valid URL.",
-          array('@link_path' => $uri)
-        )
-      );
-    }
+  public static function defaultSettings() {
+    return array(
+      'placeholder' => 'Put your social profile url',
+    ) + parent::defaultSettings();
   }
 }
only in patch2:
unchanged:
--- /dev/null
+++ b/src/Plugin/Field/FieldFormatter/SocialProfileFieldDefaultFormatter.php
@@ -0,0 +1,98 @@
+<?php
+
+/**
+ * @file
+ * Contains \Drupal\social_profile_field\Plugin\field\formatter\SocialProfileFieldDefaultFormatter.
+ */
+
+namespace Drupal\social_profile_field\Plugin\Field\FieldFormatter;
+
+use Drupal\Core\Field\Plugin\Field\FieldFormatter\UriLinkFormatter;
+use Drupal\Core\Field\FieldItemListInterface;
+use Drupal\Core\Form\FormStateInterface;
+
+/**
+ * Plugin implementation of the 'social_profile_field_default' formatter.
+ *
+ * Shows list of links.
+ *
+ * @FieldFormatter(
+ *   id = "social_profile_field_default",
+ *   label = @Translation("Default"),
+ *   field_types = {
+ *     "social_profile_url",
+ *   }
+ * )
+ */
+class SocialProfileFieldDefaultFormatter extends UriLinkFormatter {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static function defaultSettings() {
+    return array(
+      'icons_show' => 0,
+    ) + parent::defaultSettings();
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function viewElements(FieldItemListInterface $items) {
+    $elements = parent::viewElements($items);
+    $path_to_icon = drupal_get_path('module', 'social_profile_field') . '/icons/';
+    $show_icons = $this->getSetting('icons_show');
+
+    foreach ($elements as $delta => $element) {
+      if ($show_icons) {
+        $icon_path = $path_to_icon . 'default.png';
+        $domain_icon = $path_to_icon . parse_url(check_url(trim($items[$delta]->value)), PHP_URL_HOST) . '.png';
+        if (file_exists($domain_icon)) {
+          $icon_path = $domain_icon;
+        }
+
+        $elements[$delta]['#title'] = array(
+          '#theme' => 'image',
+          '#uri' => $icon_path,
+          '#attributes' => array(
+            'class' => array('social-profile-icon')
+          ),
+        );
+
+        $elements[$delta]['#attached'] = array(
+          'library' =>  array(
+            'social_profile_field/social_profile_field.css',
+          ),
+        );
+      }
+
+      $elements[$delta]['#attributes'] = array('class' => array('social-link'));
+    }
+
+    return $elements;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function settingsForm(array $form, FormStateInterface $form_state) {
+    $element = array();
+    $element['icons_show'] = array(
+      '#type' => 'checkbox',
+      '#title' => $this->t('Show icons instead urls list.'),
+      '#default_value' => $this->getSetting('icons_show'),
+      '#description' => $this->t("Outputs Social Network icons linked to user's profiles."),
+    );
+    return $element;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function settingsSummary() {
+    return array($this->t('Show Icons instead urls list: @icons_show', array(
+      '@icons_show' => $this->getSetting('icons_show') ? 'Yes' : 'No',
+    )));
+    return array();
+  }
+}