views.inc 3.46 KB
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<?php
// $Id$

/**
 * Ajax callback; return just the term display sub-form.
 *
 * @return renderable array
 */
function taxonomy_display_associated_display_handler_views_callback($form, $form_state) {
  $field = taxonomy_display_form_fieldset($form, 'associated');
  if ($field) {
    return $field['display'];
  }
}

/**
 * Add a display handler that will use the Drupal core method of display.
 */
class TaxonomyDisplayAssociatedDisplayHandlerViews extends TaxonomyDisplayAssociatedDisplayHandler {
  /**
   * Build our output to be rendered to the user.
   *
   * @see TaxonomyDisplayAssociatedDisplayHandler::displayAssociated()
   */
  public function displayAssociated($term, $options = NULL) {
    module_load_include('module', 'views');

    $build = array();

    $build['view'] = array(
      '#markup' => views_embed_view($options['view'], $options['display'], $term->tid),
    );

    return $build;
  }

  /**
   * Build our form for the fieldset.
   *
   * @see TaxonomyDisplayHandlerForm::formFieldset()
   */
  public function formFieldset(&$form, &$values, $options = NULL) {
    module_load_include('module', 'views');

    $form['#description'] = t('Use <em>Views</em> for displaying associated content.');

    // Get options for the view select field.
    $views = views_get_all_views();
    $select_options = array();
    foreach ($views as $view) {
      if (!isset($view->disabled)) {
        $select_options[$view->name] = $view->human_name;
      }
    }
    $form['view'] = array(
      '#ajax' => array(
        'callback' => 'taxonomy_display_associated_display_handler_views_callback',
        'wrapper' => 'replace-td-views-display-field',
      ),
      '#default_value' => isset($options['view']) ? $options['view'] : FALSE,
      '#description' => t('Select which view you would like to display the associated content.'),
      '#options' => $select_options,
      '#title' => t('View'),
      '#type' => 'select',
    );

    // Retrieve the views displays to supply as options.
    if (isset($values['view'])) {
      $view = $views[$values['view']];
    }
    elseif (isset($options['view'])) {
      $view = $views[$options['view']];
    }
    else {
      // If the view hasn't been submitted and it's not previously saved then
      // fetch it as the first view field option.
      reset($select_options);
      $view = $views[key($select_options)];
    }

    $select_options = array();
    // Get options for the view's display field.
    foreach ($view->display as $key => $display) {
      $select_options[$key] = $display->display_title;
    }

    $form['display'] = array(
      '#default_value' => isset($options['display']) ? $options['display'] : 'default',
      '#description' => t('The display selected will have the taxonomy term ID supplied as the first argument.'),
      '#options' => $select_options,
      '#prefix' => '<div id="replace-td-views-display-field">',
      '#suffix' => '</div>',
      '#title' => 'View\'s display',
      '#type' => 'select',
    );
  }

  /**
   * TODO: Add validate that ensures the display selected is part of the view, necessary for supporting no JS?
   */

  /**
   * We store values to access later for rendering and editing.
   *
   * @see TaxonomyDisplayHandlerForm::formSubmit()
   */
  public function formSubmit($form, &$values) {
    // We are using the exact keys that our formFieldset() implementation
    // defines and we want all of the values stored, so we have no need to alter
    // them before returning.
    return $values;
  }
}