Issue #3037113 by tim.plunkett, andrewmacpherson: Replace layout builder discard-changes + revert-to-default links with buttons

core/modules/layout_builder/src/Form/DefaultsEntityForm.php

@@ -98,14 +98,21 @@ class DefaultsEntityForm extends EntityForm {
     $actions['#weight'] = -1000;
 
     $actions['discard_changes'] = [
-      '#type' => 'link',
+      '#type' => 'submit',
-      '#title' => $this->t('Discard changes'),
+      '#value' => $this->t('Discard changes'),
-      '#attributes' => ['class' => ['button']],
+      '#submit' => ['::redirectOnSubmit'],
-      '#url' => $this->sectionStorage->getLayoutBuilderUrl('discard_changes'),
+      '#redirect' => 'discard_changes',
     ];
     return $actions;
   }
 
+  /**
+   * Form submission handler.
+   */
+  public function redirectOnSubmit(array $form, FormStateInterface $form_state) {
+    $form_state->setRedirectUrl($this->sectionStorage->getLayoutBuilderUrl($form_state->getTriggeringElement()['#redirect']));
+  }
+
   /**
    * {@inheritdoc}
    */

core/modules/layout_builder/src/Form/OverridesEntityForm.php

@@ -132,22 +132,29 @@ class OverridesEntityForm extends ContentEntityForm {
     $actions['#weight'] = -1000;
 
     $actions['discard_changes'] = [
-      '#type' => 'link',
+      '#type' => 'submit',
-      '#title' => $this->t('Discard changes'),
+      '#value' => $this->t('Discard changes'),
-      '#attributes' => ['class' => ['button']],
+      '#submit' => ['::redirectOnSubmit'],
-      '#url' => $this->sectionStorage->getLayoutBuilderUrl('discard_changes'),
+      '#redirect' => 'discard_changes',
     ];
-    // @todo This link should be conditionally displayed, see
+    // @todo This button should be conditionally displayed, see
     //   https://www.drupal.org/node/2917777.
     $actions['revert'] = [
-      '#type' => 'link',
+      '#type' => 'submit',
-      '#title' => $this->t('Revert to defaults'),
+      '#value' => $this->t('Revert to defaults'),
-      '#attributes' => ['class' => ['button']],
+      '#submit' => ['::redirectOnSubmit'],
-      '#url' => $this->sectionStorage->getLayoutBuilderUrl('revert'),
+      '#redirect' => 'revert',
     ];
     return $actions;
   }
 
+  /**
+   * Form submission handler.
+   */
+  public function redirectOnSubmit(array $form, FormStateInterface $form_state) {
+    $form_state->setRedirectUrl($this->sectionStorage->getLayoutBuilderUrl($form_state->getTriggeringElement()['#redirect']));
+  }
+
   /**
    * Retrieves the section storage object.
    *

core/modules/layout_builder/tests/src/Functional/LayoutBuilderTest.php

@@ -295,8 +295,7 @@ class LayoutBuilderTest extends BrowserTestBase {
     $assert_session->elementExists('css', '.field--name-nid');
     $assert_session->pageTextContains('ID');
     $assert_session->pageTextContains('1');
-    $assert_session->linkExists('Revert to defaults');
+    $page->pressButton('Revert to defaults');
-    $this->clickLink('Revert to defaults');
     $page->pressButton('Revert');
     $assert_session->addressEquals('node/1');
     $assert_session->pageTextContains('The layout has been reverted back to defaults.');
@@ -386,7 +385,7 @@ class LayoutBuilderTest extends BrowserTestBase {
     $this->clickLink('Manage layout');
     // Confirm the body field only is shown once.
     $assert_session->elementsCount('css', '.field--name-body', 1);
-    $this->clickLink('Discard changes');
+    $page->pressButton('Discard changes');
     $page->pressButton('Confirm');
 
     $this->clickLink('Teaser');
@@ -402,7 +401,7 @@ class LayoutBuilderTest extends BrowserTestBase {
     $assert_session->elementsCount('css', '.field--name-body', 1);
 
     // Enable a disabled view mode.
-    $page->clickLink('Discard changes');
+    $page->pressButton('Discard changes');
     $page->pressButton('Confirm');
     $assert_session->addressEquals("$field_ui_prefix/display/teaser");
     $page->clickLink('Default');
@@ -531,7 +530,7 @@ class LayoutBuilderTest extends BrowserTestBase {
     $assert_session->pageTextContains('This is the default view mode');
     $this->drupalGet('node/1/layout');
     $assert_session->pageTextContains('This is the default view mode');
-    $this->clickLink('Discard changes');
+    $page->pressButton('Discard changes');
     $page->pressButton('Confirm');
 
     // Enable the full view mode and customize it.
@@ -551,7 +550,7 @@ class LayoutBuilderTest extends BrowserTestBase {
     $assert_session->pageTextContains('This is the full view mode');
     $this->drupalGet('node/1/layout');
     $assert_session->pageTextContains('This is the full view mode');
-    $this->clickLink('Discard changes');
+    $page->pressButton('Discard changes');
     $page->pressButton('Confirm');
 
     // Disable the full view mode, the default should be used again.
@@ -560,7 +559,7 @@ class LayoutBuilderTest extends BrowserTestBase {
     $assert_session->pageTextContains('This is the default view mode');
     $this->drupalGet('node/1/layout');
     $assert_session->pageTextContains('This is the default view mode');
-    $this->clickLink('Discard changes');
+    $page->pressButton('Discard changes');
     $page->pressButton('Confirm');
   }
 
@@ -958,7 +957,7 @@ class LayoutBuilderTest extends BrowserTestBase {
     $assert_session->elementsCount('css', '.layout-builder__add-section', 2);
 
     // Revert the override.
-    $page->clickLink('Revert to defaults');
+    $page->pressButton('Revert to defaults');
     $page->pressButton('Revert');
     $assert_session->elementsCount('css', '.layout', 0);
     $assert_session->pageTextNotContains('The first node body');

core/modules/layout_builder/tests/src/FunctionalJavascript/InlineBlockTest.php

@@ -100,8 +100,7 @@ class InlineBlockTest extends InlineBlockTestBase {
    *
    * @dataProvider layoutNoSaveProvider
    */
-  public function testNoLayoutSave($operation, $no_save_link_text, $confirm_button_text) {
+  public function testNoLayoutSave($operation, $no_save_button_text, $confirm_button_text) {
-
     $this->drupalLogin($this->drupalCreateUser([
       'access contextual links',
       'configure any layout',
@@ -119,7 +118,7 @@ class InlineBlockTest extends InlineBlockTestBase {
 
     $this->drupalGet('node/1/layout');
     $this->addInlineBlockToLayout('Block title', 'The block body');
-    $this->clickLink($no_save_link_text);
+    $page->pressButton($no_save_button_text);
     if ($confirm_button_text) {
       $page->pressButton($confirm_button_text);
     }
@@ -143,7 +142,7 @@ class InlineBlockTest extends InlineBlockTestBase {
     $this->drupalGet('node/1/layout');
     $this->configureInlineBlock('The block body', 'The block updated body');
 
-    $this->clickLink($no_save_link_text);
+    $page->pressButton($no_save_button_text);
     if ($confirm_button_text) {
       $page->pressButton($confirm_button_text);
     }

core/modules/layout_builder/tests/src/FunctionalJavascript/LayoutBuilderUiTest.php

@@ -83,7 +83,7 @@ class LayoutBuilderUiTest extends WebDriverTestBase {
 
     // Make and then discard changes.
     $this->assertModifiedLayout(static::FIELD_UI_PREFIX . '/display/default/layout');
-    $page->clickLink('Discard changes');
+    $page->pressButton('Discard changes');
     $page->pressButton('Confirm');
     $assert_session->pageTextNotContains('You have unsaved changes.');