diff --git a/core/modules/views_ui/css/views_ui.admin.theme.css b/core/modules/views_ui/css/views_ui.admin.theme.css
index dee195a..437c342 100644
--- a/core/modules/views_ui/css/views_ui.admin.theme.css
+++ b/core/modules/views_ui/css/views_ui.admin.theme.css
@@ -570,7 +570,7 @@ td.group-title {
   margin-top: 0;
   margin-bottom: 0;
 }
-.views-ui-dialog .views-override .views-filterable-options-controls {
+.views-ui-dialog .views-ajax-title .views-filterable-options-controls {
   margin: 1em 0;
 }
 .views-filterable-options-controls .form-item {
@@ -600,13 +600,13 @@ td.group-title {
   margin: 0;
   padding: 6px 16px;
 }
-.views-ui-dialog .views-override {
+.views-ui-dialog .views-ajax-title {
   background-color: #f3f4ee;
 }
 .views-ui-dialog.views-ui-dialog-scroll .ui-dialog-titlebar {
   border: none;
 }
-.views-ui-dialog .views-override {
+.views-ui-dialog .views-ajax-title {
   padding: 8px 13px;
 }
 .views-ui-dialog .views-offset-top {
@@ -615,7 +615,7 @@ td.group-title {
 .views-ui-dialog .views-offset-bottom {
   border-top: 1px solid #CCC;
 }
-.views-ui-dialog .views-override > * {
+.views-ui-dialog .views-ajax-title > * {
   margin: 0;
 }
 .views-ui-dialog .views-progress-indicator {
diff --git a/core/modules/views_ui/src/ViewEditForm.php b/core/modules/views_ui/src/ViewEditForm.php
index 8d2d32f..816dc69 100644
--- a/core/modules/views_ui/src/ViewEditForm.php
+++ b/core/modules/views_ui/src/ViewEditForm.php
@@ -122,6 +122,13 @@ public function form(array $form, FormStateInterface $form_state) {
     $form['#attached']['library'][] = 'views_ui/views_ui.admin';
     $form['#attached']['library'][] = 'views_ui/admin.styling';
 
+    $form['#attached']['drupalSettings']['views']['ajax'] = [
+      'id' => '.views-ajax-body',
+      'title' => '.views-ajax-title',
+      'popup' => '.views-ajax-popup',
+      'defaultForm' => $view->getDefaultAJAXMessage(),
+    ];
+
     $form += array(
       '#prefix' => '',
       '#suffix' => '',
@@ -214,6 +221,23 @@ public function form(array $form, FormStateInterface $form_state) {
         '#type' => 'container',
         'tab_content' => $tab_content,
       );
+
+      // The content of the popup dialog.
+      $form['ajax-area'] = array(
+        '#type' => 'container',
+        '#attributes' => array(
+          'class' => array('views-ajax-popup'),
+        ),
+      );
+      $form['ajax-area']['ajax-title'] = array(
+        '#markup' => '<div class="views-ajax-title"></div>',
+      );
+      $form['ajax-area']['ajax-body'] = array(
+        '#type' => 'container',
+        '#attributes' => array(
+          'class' => array('views-ajax-body'),
+        ),
+      );
     }
 
     return $form;
diff --git a/core/modules/views_ui/src/ViewUI.php b/core/modules/views_ui/src/ViewUI.php
index 5fde131..75bbbdf 100644
--- a/core/modules/views_ui/src/ViewUI.php
+++ b/core/modules/views_ui/src/ViewUI.php
@@ -198,6 +198,10 @@ public function set($property_name, $value, $notify = TRUE) {
     }
   }
 
+  public static function getDefaultAJAXMessage() {
+    return SafeMarkup::set('<div class="message">' . t("Click on an item to edit that item's details.") . '</div>');
+  }
+
   /**
    * {@inheritdoc}
    */