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core/modules/navigation/src/Form/LayoutForm.php

@@ -91,10 +91,10 @@ public function buildForm(array $form, FormStateInterface $form_state, ?SectionS
     $form['#attached']['library'][] = 'navigation/navigation.layoutBuilder';
 
     $form['actions'] = [
-      'enable_edition' => [
+      'enable_edit_mode' => [
         '#type' => 'submit',
-        '#value' => $this->t('Enable Edit mode'),
-        '#name' => 'enable_edition',
+        '#value' => $this->t('Enable edit mode'),
+        '#name' => 'enable_edit_mode',
         '#ajax' => [
           'callback' => '::enableEditMode',
           'wrapper' => 'js-config-form-wrapper',
@@ -152,8 +152,8 @@ protected function handleFormElementsVisibility(array &$form, bool $edit_mode_en
     $form['actions']['preview_toggle']['toggle_content_preview']['#access'] =
     $form['layout_builder']['#access'] = $edit_mode_enabled;
 
-    // Edit mode flag element is onl visible when edit mode is disabled.
-    $form['actions']['enable_edition']['#access'] = !$edit_mode_enabled;
+    // Edit mode flag element is only visible when edit mode is disabled.
+    $form['actions']['enable_edit_mode']['#access'] = !$edit_mode_enabled;
 
     return $form;
   }

core/modules/navigation/tests/src/FunctionalJavascript/NavigationBlockUiTest.php

@@ -80,7 +80,7 @@ public function testNavigationBlockAdminUiPageNestedForm(): void {
 
     // Edit the layout and add a block that contains a form.
     $this->drupalGet($layout_url);
-    $this->getSession()->getPage()->pressButton('Enable Edit mode');
+    $this->getSession()->getPage()->pressButton('Enable edit mode');
     $this->assertSession()->assertWaitOnAjaxRequest();
     $this->openAddBlockForm('Layout Builder form block test form api form block');
     $this->getSession()->getPage()->checkField('settings[label_display]');
@@ -100,7 +100,7 @@ public function testNavigationBlockAdminUiPageNestedForm(): void {
     // Try to save the layout again and confirm it can save because there are no
     // nested form tags.
     $this->drupalGet($layout_url);
-    $this->getSession()->getPage()->pressButton('Enable Edit mode');
+    $this->getSession()->getPage()->pressButton('Enable edit mode');
     $this->assertSession()->assertWaitOnAjaxRequest();
     $this->getSession()->getPage()->checkField('toggle_content_preview');
     $this->getSession()->getPage()->pressButton('Save');
@@ -130,7 +130,7 @@ public function testNavigationBlockAdminUiPage(): void {
     $this->drupalLogin($this->adminUser);
     $this->drupalGet($layout_url);
     $page = $this->getSession()->getPage();
-    $this->getSession()->getPage()->pressButton('Enable Edit mode');
+    $this->getSession()->getPage()->pressButton('Enable edit mode');
     $this->assertSession()->assertWaitOnAjaxRequest();
 
     // Add section should not be present
@@ -188,7 +188,7 @@ public function testNavigationBlockAdminUiPage(): void {
 
     // Reconfigure a block and ensure that the layout content is updated.
     $this->drupalGet($layout_url);
-    $this->getSession()->getPage()->pressButton('Enable Edit mode');
+    $this->getSession()->getPage()->pressButton('Enable edit mode');
     $this->assertSession()->assertWaitOnAjaxRequest();
     $this->clickContextualLink('.layout-builder .block-navigation-shortcuts', 'Configure');
     $this->assertOffCanvasFormAfterWait('layout_builder_update_block');