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<?php

/**

 * @file

 * Class for the Panelizer taxonomy term entity plugin.

 */

/**

 * Panelizer Entity taxonomy term plugin class.

 *

 * Handles term specific functionality for Panelizer.

 */

class PanelizerEntityTaxonomyTerm extends PanelizerEntityDefault {

  public $entity_admin_root = 'admin/structure/taxonomy/%';

  public $entity_admin_bundle = 3;

  public $views_table = 'taxonomy_term_data';

  public $uses_page_manager = TRUE;

  public function init($plugin) {

    if (module_exists('taxonomy_revision')) {

      $this->supports_revisions = TRUE;

    }

    parent::init($plugin);

  }

  public function entity_access($op, $entity) {

    // This must be implemented by the extending class.

    if ($op == 'update' || $op == 'delete') {

      return taxonomy_term_edit_access($entity);

    }

    if ($op == 'view') {

      return TRUE;

    }

    return FALSE;

  }

  /**

   * Implement the save function for the entity.

   */

  public function entity_save($entity) {

    taxonomy_term_save($entity);

  }

  public function entity_identifier($entity) {

    return t('This taxonomy term');

  }

  public function entity_bundle_label() {

    return t('Taxonomy vocabulary');

  }

  function get_default_display($bundle, $view_mode) {

    // For now we just go with the empty display.

    // @todo come up with a better default display.

    return parent::get_default_display($bundle, $view_mode);

  }

  /**

   * Implements a delegated hook_page_manager_handlers().

   *

   * This makes sure that all panelized entities have the proper entry

   * in page manager for rendering.

   */

  public function hook_default_page_manager_handlers(&$handlers) {

    page_manager_get_task('term_view');

    $handler = new stdClass;

    $handler->disabled = FALSE; /* Edit this to true to make a default handler disabled initially */

    $handler->api_version = 1;

    $handler->name = 'term_view_panelizer';

    $handler->task = 'term_view';

    $handler->subtask = '';

    $handler->handler = 'panelizer_node';

    $handler->weight = -100;

    $handler->conf = array(

      'title' => t('Term panelizer'),

      'context' => page_manager_term_view_get_type() == 'multiple' ? 'argument_terms_1' : 'argument_term_1',

      'access' => array(),

    );

    $handlers['term_view_panelizer'] = $handler;

    return $handlers;

  }

  /**

   * Implements a delegated hook_form_alter.

   *

   * We want to add Panelizer settings for the bundle to the node type form.

   */

  public function hook_form_alter(&$form, &$form_state, $form_id) {

    if ($form_id == 'taxonomy_form_vocabulary') {

      if (isset($form['#vocabulary'])) {

        $bundle = $form['#vocabulary']->machine_name;

        $this->add_bundle_setting_form($form, $form_state, $bundle, array('machine_name'));

      }

    }

  }

  /**

   * Fetch the entity out of a build for hook_entity_view.

   *

   * @param $build

   *   The render array that contains the entity.

   */

  public function get_entity_view_entity($build) {

    $element = '#term';

    if (isset($build[$element])) {

      return $build[$element];

    }

  }

  /**

   * Obtain the machine name of the Page Manager task.

   *

   * The Page Manager task for the taxonomy_term entity is "term_view", and not

   * the expected "taxonomy_term_view".

   */

  public function get_page_manager_task_name() {

    if (empty($this->plugin['uses page manager'])) {

      return FALSE;

    }

    else {

      return 'term_view';

    }

  }

  /**

   * Identify whether page manager is enabled for this entity type.

   *

   * Need to override this as Page Manager uses a different string for taxonomy

   * terms than other entities.

   */

  public function is_page_manager_enabled() {

    return variable_get('page_manager_term_view_disabled', TRUE);

  }

}