/**
* Form constructor.
*
* Display a tree of all the terms in a vocabulary, with options to edit
* each one. The form implements the Taxonomy Manager intefrace.
*
* @param array $form
* An associative array containing the structure of the form.
* @param \Drupal\Core\Form\FormStateInterface $form_state
* The current state of the form.
* @param VocabularyInterface $taxonomy_vocabulary
* The vocabulary being with worked with
*
* @return array
* The form structure.
*/
public function buildForm(array $form, FormStateInterface $form_state, VocabularyInterface $taxonomy_vocabulary = NULL)
{
$form['voc'] = array('#type' => 'value', "#value" => $taxonomy_vocabulary);
$form['#attached']['library'][] = 'taxonomy_manager/form';
if (TaxonomyManagerHelper::_taxonomy_manager_voc_is_empty($taxonomy_vocabulary->id())) {
$form['text'] = array('#markup' => $this->t('No terms available'));
$form[] = \Drupal::formBuilder()->getForm('Drupal\\taxonomy_manager\\Form\\AddTermsToVocabularyForm', $taxonomy_vocabulary);
return $form;
}
$form['toolbar'] = array('#type' => 'fieldset', '#title' => $this->t('Toolbar'));
$form['toolbar']['add'] = array('#type' => 'submit', '#name' => 'add', '#value' => $this->t('Add'), '#ajax' => array('callback' => '::addFormCallback'));
$form['toolbar']['delete'] = array('#type' => 'submit', '#name' => 'delete', '#value' => $this->t('Delete'), '#ajax' => array('callback' => '::deleteFormCallback'));
$form['toolbar']['move'] = array('#type' => 'submit', '#name' => 'move', '#value' => $this->t('Move'), '#ajax' => array('callback' => '::moveFormCallback'));
$form['toolbar']['export'] = array('#type' => 'submit', '#name' => 'export', '#value' => $this->t('Export'), '#ajax' => array('callback' => '::exportFormCallback'));
/* Taxonomy manager. */
$form['taxonomy']['#tree'] = TRUE;
$form['taxonomy']['manager'] = array('#type' => 'fieldset', '#title' => HTML::escape($taxonomy_vocabulary->label()), '#tree' => TRUE);
$form['taxonomy']['manager']['top'] = array('#markup' => '', '#prefix' => '<div class="taxonomy-manager-tree-top">', '#suffix' => '</div>');
/*$grippie_image = array(
'#theme' => 'image',
'#uri' => drupal_get_path('module', 'taxonomy_manager') . "/images/grippie.png",
'#alt' => $this->t("Resize tree"),
'#title' => $this->t("Resize tree"),
'#attributes' => array('class' => array('div-grippie')),
);
$form['taxonomy']['manager']['top']['size'] = array(
'#markup' =>
'<div class="taxonomy-manager-tree-size">'
. \Drupal::service('renderer')->render($grippie_image, true)
. '</div>'
);*/
$form['taxonomy']['manager']['tree'] = array('#type' => 'taxonomy_manager_tree', '#vocabulary' => $taxonomy_vocabulary->id(), '#pager_size' => \Drupal::config('taxonomy_manager.settings')->get('taxonomy_manager_pager_tree_page_size'));
$form['taxonomy']['manager']['pager'] = array('#type' => 'pager');
// Add placeholder for term data form, the load-term-data field has AJAX
// events attached and will trigger the load of the term data form. The
// field is hidden via CSS and the value gets set in termData.js.
$form['term-data']['#prefix'] = '<div id="taxonomy-term-data-form">';
$form['term-data']['#suffix'] = '</div>';
$form['load-term-data'] = array('#type' => 'textfield', '#ajax' => array('callback' => '::termDataCallback', 'event' => 'change'));
return $form;
}
/**
* Helper function that generates the nested list for the JSON array structure.
*/
public static function getNestedListJSONArray($terms)
{
$items = array();
if (!empty($terms)) {
foreach ($terms as $term) {
$item = array('title' => HTML::escape($term->getName()), 'key' => $term->id());
if (isset($term->children) || TaxonomyManagerTree::getChildCount($term->id()) >= 1) {
// If the given terms array is nested, directly process the terms.
if (isset($term->children)) {
$item['children'] = TaxonomyManagerTree::getNestedListJSONArray($term->children);
} else {
$item['lazy'] = TRUE;
}
}
$items[] = $item;
}
}
return $items;
}
