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<?php

/**

 * @file

 * Page callbacks for the taxonomy module, i18n remake.

 */

/**

 * Menu callback; displays all nodes associated with a term.

 *

 * @param $term

 *   The taxonomy term.

 * @return

 *   The page content.

 */

function i18n_taxonomy_term_page($term) {

  $term = i18n_taxonomy_localize_terms($term);

  // Assign the term name as the page title.

  drupal_set_title($term->name);

  // Build breadcrumb based on the hierarchy of the term.

  $current = (object) array(

    'tid' => $term->tid,

  );

  // @todo This overrides any other possible breadcrumb and is a pure hard-coded

  //   presumption. Make this behavior configurable per vocabulary or term.

  $breadcrumb = array();

  while ($parents = taxonomy_get_parents($current->tid)) {

    $parents = i18n_taxonomy_localize_terms($parents);

    $current = array_shift($parents);

    $breadcrumb[] = l($current->name, 'taxonomy/term/' . $current->tid);

  }

  $breadcrumb[] = l(t('Home'), NULL);

  $breadcrumb = array_reverse($breadcrumb);

  drupal_set_breadcrumb($breadcrumb);

  drupal_add_feed('taxonomy/term/' . $term->tid . '/feed', 'RSS - ' . $term->name);

  $build = array();

  $build['term_heading'] = array(

    '#prefix' => '<div class="term-listing-heading">',

    '#suffix' => '</div>',

    'term' => taxonomy_term_view($term, 'full'),

  );

  if ($nids = taxonomy_select_nodes($term->tid, TRUE, variable_get('default_nodes_main', 10))) {

    $nodes = node_load_multiple($nids);

    $build += node_view_multiple($nodes);

    $build['pager'] = array(

      '#theme' => 'pager',

      '#weight' => 5,

    );

  }

  else {

    $build['no_content'] = array(

      '#prefix' => '<p>',

      '#markup' => t('There is currently no content classified with this term.'),

      '#suffix' => '</p>',

    );

  }

  return $build;

}

/**

 * Render a taxonomy term page HTML output.

 *

 * @param $tids

 *   An array of term ids.

 * @param $result

 *   A pager_query() result, such as that performed by taxonomy_select_nodes().

 *

 * @ingroup themeable

 */

function theme_i18n_taxonomy_term_page($tids, $result) {

  drupal_add_css(drupal_get_path('module', 'taxonomy') . '/taxonomy.css');

  $output = '';

  // Only display the description if we have a single term, to avoid clutter and confusion.

  if (count($tids) == 1) {

    $term = i18n_taxonomy_localize_terms(taxonomy_term_load($tids[0]));

    // Check that a description is set.

    if (!empty($term->description)) {

      $output .= '<div class="taxonomy-term-description">';

      $output .= filter_xss_admin($term->description);

      $output .= '</div>';

    }

  }

  $output .= taxonomy_render_nodes($result);

  return $output;

}

/**

 * Helper function for autocompletion. Replacement for taxonomy_autocomplete

 */

function i18n_taxonomy_autocomplete_field($field_name, $tags_typed = '') {

  // Part of the criteria for the query come from the field's own settings.

  $field = field_info_field($field_name);

  $vids = array();

  $vocabularies = taxonomy_vocabulary_get_names();

  foreach ($field['settings']['allowed_values'] as $tree) {

    $vids[] = $vocabularies[$tree['vocabulary']]->vid;

  }

  // This has been redirected from taxonomy module so we add current language and no language

  // Because some of the vocabularies may not have language

  $langcode = array(i18n_langcode(), LANGUAGE_NONE);

  return _i18n_taxonomy_autocomplete($langcode, $vids, $tags_typed);

}

/**

 * Helper function for autocompletion. Select by language

 */

function i18n_taxonomy_autocomplete_language($langcode, $vocabulary, $tags_typed = '') {

  $vids = $vocabulary ? array($vocabulary->vid) : NULL;

  return _i18n_taxonomy_autocomplete($langcode, $vids, $tags_typed);

}

/**

 * Helper function for autocompletion

 */

function _i18n_taxonomy_autocomplete($langcode, $vids, $tags_typed = '') {

  // The user enters a comma-separated list of tags. We only autocomplete the last tag.

  $tags_typed = drupal_explode_tags($tags_typed);

  $tag_last = drupal_strtolower(array_pop($tags_typed));

  $matches = array();

  if ($langcode && $tag_last != '') {

    $query = db_select('taxonomy_term_data', 't')

      ->fields('t', array('tid', 'name'));

    $query->addTag('translatable');

    $query->addTag('term_access');

    // Disable i18n_select for this query

    $query->addTag('i18n_select');

    // Add language condition

    $query->condition('t.language', $langcode);

    // Do not select already entered terms.

    if (!empty($tags_typed)) {

      $query->condition('t.name', $tags_typed, 'NOT IN');

    }

    // There may be vocabulary restrictions

    if ($vids) {

      $query->condition('t.vid', $vids);

    }

    // Select rows that match by term name.

    $tags_return = $query

      ->condition('t.name', '%' . db_like($tag_last) . '%', 'LIKE')

      ->range(0, 10)

      ->execute()

      ->fetchAllKeyed();

    $prefix = count($tags_typed) ? drupal_implode_tags($tags_typed) . ', ' : '';

    $term_matches = array();

    foreach ($tags_return as $tid => $name) {

      $n = $name;

      // Term names containing commas or quotes must be wrapped in quotes.

      if (strpos($name, ',') !== FALSE || strpos($name, '"') !== FALSE) {

        $n = '"' . str_replace('"', '""', $name) . '"';

      }

      $term_matches[$prefix . $n] = check_plain($name);

    }

  }

  drupal_json_output($term_matches);

}