Version 1

[yaffs-website] / web / core / modules / system / src / Form / ThemeAdminForm.php

diff --git a/web/core/modules/system/src/Form/ThemeAdminForm.php b/web/core/modules/system/src/Form/ThemeAdminForm.php
new file mode 100644 (file)
index 0000000..e8d17ed
--- /dev/null
+++ b/web/core/modules/system/src/Form/ThemeAdminForm.php
@@ -0,0 +1,61 @@
+<?php
+
+namespace Drupal\system\Form;
+
+use Drupal\Core\Form\ConfigFormBase;
+use Drupal\Core\Form\FormStateInterface;
+
+/**
+ * Form to select the administration theme.
+ */
+class ThemeAdminForm extends ConfigFormBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFormId() {
+    return 'system_themes_admin_form';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function getEditableConfigNames() {
+    return ['system.theme'];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildForm(array $form, FormStateInterface $form_state, array $theme_options = NULL) {
+    // Administration theme settings.
+    $form['admin_theme'] = [
+      '#type' => 'details',
+      '#title' => $this->t('Administration theme'),
+      '#open' => TRUE,
+    ];
+    $form['admin_theme']['admin_theme'] = [
+      '#type' => 'select',
+      '#options' => [0 => $this->t('Default theme')] + $theme_options,
+      '#title' => $this->t('Administration theme'),
+      '#description' => $this->t('Choose "Default theme" to always use the same theme as the rest of the site.'),
+      '#default_value' => $this->config('system.theme')->get('admin'),
+    ];
+    $form['admin_theme']['actions'] = ['#type' => 'actions'];
+    $form['admin_theme']['actions']['submit'] = [
+      '#type' => 'submit',
+      '#value' => $this->t('Save configuration'),
+      '#button_type' => 'primary',
+    ];
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitForm(array &$form, FormStateInterface $form_state) {
+    parent::submitForm($form, $form_state);
+    $this->config('system.theme')->set('admin', $form_state->getValue('admin_theme'))->save();
+  }
+
+}