function ThemeAdminForm::buildForm

Overrides ConfigFormBase::buildForm

File

core/modules/system/src/Form/ThemeAdminForm.php, line 32

Class

ThemeAdminForm

Form to select the administration theme.

Namespace

Code

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' => [
            '' => $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;
}