Issue #1482938 by autopoietic, grndlvl: Date facets don't work normally

 * Widget that renders facets as dropdowns.

 */

class FacetapiSelectDropdowns extends FacetapiWidgetLinks {

  private $urls_cache = array();

  /**

   * Renders the links.

    $element = &$this->build[$this->facet['field alias']];

    $settings = $this->settings;

    $facet_active = FALSE;

    foreach ($element as $value => $item) {

      $path = !empty($this->settings->settings['submit_page']) ? $this->settings->settings['submit_page'] : $item['#path'];

      $path = strpos($item['#path'], $path) === 0 ? $item['#path'] : $path;

      $url = url($path, array('query' => $item['#query']));

      if ($item['#active']) {

        $variables['active_items'][$url] = $this->buildActiveLink($item, $path);

      }

      else {

        $variables['options'][$url] = theme('facetapi_select_select_option', array(

          'facet_text' => $item['#markup'],

          'facet_count' => $item['#count'],

          'show_count' => isset($settings->settings['hide_facet_count']) ? !$settings->settings['hide_facet_count'] : TRUE,

        ));

      }

    }

    $variables = $this->buildItems($element);

    if (!empty($variables['options'])) {

      $default_option_label = !empty($settings->settings['default_option_label']) ? $settings->settings['default_option_label'] : t('--Choose--');

    $element = drupal_get_form('facetapi_select_facet_form', $variables, $count);

  }

  /**

   * Build the active items and the options array for the provided facetapi element.

   *

   * @param array $element

   *   The facetapi element as provided by execute().

   *

   * @return array

   *   An array that contains the options and active items arrays.

   */

  protected function buildItems($element, $depth = 0) {

    $settings = $this->settings;

    $active_item = NULL;

    $variables = array('active_items' => array(), 'options' => array());

    foreach ($element as $value => $item) {

      $url = $this->getUrl($item);

      if ($item['#active']) {

        $variables['active_items'][$url]['data'] = $this->buildActiveLink($item);

        $active_item = $item;

      }

      else {

        $variables['options'][$url] = $this->buildSelectOption($item);

      }

    }

    // When there are currently no options and the current active item has children

    // let's add the children as options.

    if (empty($variables['options']) && !empty($active_item['#item_children'])) {

      $this->appendChildren($variables, $active_item, $depth);

    }

    return $variables;

  }

  /**

   * Append children to the active items and options for the facet.

   *

   * @param array $variables

   *   The variables array as provided by FacetapiSlectDropdowns::getItems().

   * @param array $item

   *   The facet item to use for retrieving the children.

   * @param int $depth

   *   The current depth of the childen.

   *

   * @return void

   */

  protected function appendChildren(array &$variables, array $item, $depth = 0) {

    $tmpItems = $this->buildItems($item['#item_children'], ++$depth);

    if (!empty($tmpItems['active_items'])) {

      $variables['active_items'][$this->getUrl($item)]['children'] = $tmpItems['active_items'];

    }

    if (!empty($tmpItems['options'])) {

      $variables['options'] += $tmpItems['options'];

    }

  }

  /**

   * Append the OpGroup header to the options array for active items so that

   * they should not selectable.

   *

   * @param array $variables

   *   The variables array as provided by FacetapiSlectDropdowns::getItems().

   * @param array $item

   *   The item to build the opgroup header for.

   *

   * @return void

   */

  function appendOpGroupheader(array &$variables, array $item) {

    if (!empty($item) && isset($variables['active_items'][$this->getUrl($item)])) {

      $text = $this->buildSelectOption($item);

      $variables['options'][$text] = array();

    }

  }

  /**

   * Build an individual active item link.

   *

   * @return string

   *   The built active link based on the specified item.

   */

  protected function buildActiveLink($item, $path) {

  protected function buildActiveLink(array $item) {

    // We call theme directly here because we will be adding these items to a

    // theme_list() build array as the items.

    return theme('facetapi_link_active', array(

      'text' => $item['#markup'],

      'count' => $item['#count'],

      'path' => $path,

      'path' => $this->getUrl($item, FALSE),

      'options' => array(

        'query' => $item['#query'],

        'attributes' => array(

    ));

  }

  /**

   * Build an indiviudal select option.

   *

   * @param array $item

   *   The facet item to use for to build the select option for.

   *

   * @return string

   *   The themed individual select option text.

   */

  protected function buildSelectOption(array $item) {

    return theme('facetapi_select_select_option', array(

      'facet_text' => $item['#markup'],

      'facet_count' => $item['#count'],

      'show_count' => isset($this->settings->settings['hide_facet_count']) ? !$this->settings->settings['hide_facet_count'] : TRUE,

    ));

  }

  /**

   * Retrieve the url for the specified facet item.

   *

   * @param array $item

   *   The facet item to use for retrieving the url.

   * @param boolean $append_query (optional)

   *   Determines if the query should be appended to the return url.

   */

  protected function getUrl(array $item, $append_query = TRUE) {

    if (!isset($this->urls_cache[$item['#path']])) {

      $path = !empty($this->settings->settings['submit_page']) ? $this->settings->settings['submit_page'] : $item['#path'];

      $path = strpos($item['#path'], $path) === 0 ? $item['#path'] : $path;

      $this->urls_cache[$item['#path']] = $path;

    }

    $query = ($append_query) ? $item['#query'] : array();

    return url($this->urls_cache[$item['#path']], array('query' => $query));

  }

  public function settingsForm(&$form, &$form_state) {

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