Club Drupal

<?php

/**

 * Views field handler for rendering node links that point to panelizer tabs.

 */

class panelizer_handler_field_link extends views_handler_field_node_link {

  /**

   * Mapping of node paths (the part after node/N) to human-readable labels.

   *

   * This array is used both for the options_form in the select dropdown, and

   * also when rendering the link to define the link text if not overridden.

   */

  protected $tab_map = array();

  function construct() {

    parent::construct();

    $this->tab_map = array(

      'settings' => t('Settings'),

      'context' => t('Context'),

      'layout' => t('Layout'),

      'content' => t('Content'),

    );

  }

  function option_definition() {

    $options = parent::option_definition();

    $options['panelizer_tab'] = array('default' => 'panelizer');

    $options['view_mode'] = array('default' => 'page_manager');

    return $options;

  }

  function options_form(&$form, &$form_state) {

    parent::options_form($form, $form_state);

    $form['panelizer_tab'] = array(

      '#type' => 'select',

      '#title' => 'Panelizer tab to link to',

      '#options' => $this->tab_map,

      '#default_value' => $this->options['panelizer_tab'],

    );

    $entity_type = $this->definition['entity_type'];

    $handler = panelizer_entity_plugin_get_handler($entity_type);

    $view_modes = array();

    foreach ($handler->plugin['view modes'] as $view_mode => $view_mode_info) {

      $view_modes[$view_mode] = $view_mode_info['label'];

    }

    $form['view_mode'] = array(

      '#type' => 'select',

      '#title' => t('View mode'),

      '#options' => $view_modes,

    );

  }

  function render_link($entity, $values) {

    if (!$entity) {

      return;

    }

    $entity_type = $this->definition['entity_type'];

    $handler = panelizer_entity_plugin_get_handler($entity_type);

    list($entity_id, $revision_id, $bundle) = entity_extract_ids($entity_type, $entity);

    if ($handler && $handler->is_panelized($bundle) && $handler->panelizer_access($this->options['panelizer_tab'], $entity)) {

      $this->options['alter']['make_link'] = TRUE;

      $path = str_replace("%$entity_type", $entity_id, $handler->plugin['entity path']) . '/panelizer/' . $this->options['view_mode'] . '/' . $this->options['panelizer_tab'];

      $this->options['alter']['path'] = $path;

      $this->options['alter']['query'] = drupal_get_destination();

      $text = !empty($this->options['text']) ? $this->options['text'] : $this->tab_map[$this->options['panelizer_tab']];

      return $text;

    }

  }

}