function ConfigureSectionForm::buildForm

Overrides FormInterface::buildForm

File

core/modules/layout_builder/src/Form/ConfigureSectionForm.php, line 125

Class

ConfigureSectionForm

Provides a form for configuring a layout section.

Namespace

Code

public function buildForm(array $form, FormStateInterface $form_state, SectionStorageInterface $section_storage = NULL, $delta = NULL, $plugin_id = NULL) {
    $this->sectionStorage = $section_storage;
    $this->delta = $delta;
    $this->isUpdate = is_null($plugin_id);
    $this->pluginId = $plugin_id;
    $section = $this->getCurrentSection();
    if ($this->isUpdate) {
        if ($label = $section->getLayoutSettings()['label']) {
            $form['#title'] = $this->t('Configure @section', [
                '@section' => $label,
            ]);
        }
    }
    // Passing available contexts to the layout plugin here could result in an
    // exception since the layout may not have a context mapping for a required
    // context slot on creation.
    $this->layout = $section->getLayout();
    $form_state->setTemporaryValue('gathered_contexts', $this->getPopulatedContexts($this->sectionStorage));
    $form['#tree'] = TRUE;
    $form['layout_settings'] = [];
    $subform_state = SubformState::createForSubform($form['layout_settings'], $form, $form_state);
    $form['layout_settings'] = $this->getPluginForm($this->layout)
        ->buildConfigurationForm($form['layout_settings'], $subform_state);
    $form['actions']['submit'] = [
        '#type' => 'submit',
        '#value' => $this->isUpdate ? $this->t('Update') : $this->t('Add section'),
        '#button_type' => 'primary',
    ];
    if ($this->isAjax()) {
        $form['actions']['submit']['#ajax']['callback'] = '::ajaxSubmit';
        // @todo static::ajaxSubmit() requires data-drupal-selector to be the same
        //   between the various Ajax requests. A bug in
        //   \Drupal\Core\Form\FormBuilder prevents that from happening unless
        //   $form['#id'] is also the same. Normally, #id is set to a unique HTML
        //   ID via Html::getUniqueId(), but here we bypass that in order to work
        //   around the data-drupal-selector bug. This is okay so long as we
        //   assume that this form only ever occurs once on a page. Remove this
        //   workaround in https://www.drupal.org/node/2897377.
        $form['#id'] = Html::getId($form_state->getBuildInfo()['form_id']);
    }
    $target_highlight_id = $this->isUpdate ? $this->sectionUpdateHighlightId($delta) : $this->sectionAddHighlightId($delta);
    $form['#attributes']['data-layout-builder-target-highlight-id'] = $target_highlight_id;
    // Mark this as an administrative page for JavaScript ("Back to site" link).
    $form['#attached']['drupalSettings']['path']['currentPathIsAdmin'] = TRUE;
    return $form;
}