Club Drupal

<?php

/**

 * @file

 * Contains implementations of flag info hooks.

 */

/**

 * Implements hook_flag_type_info().

 *

 * Defines the flag types this module implements.

 *

 * @return

 *   An "array of arrays", keyed by object type. The 'handler' slot

 *   should point to the PHP class implementing this flag.

 */

function flag_flag_type_info() {

  // Entity types we specifically cater for.

  $definitions = array(

    'node' => array(

      'title' => t('Nodes'),

      'description' => t("Nodes are a Drupal site's primary content."),

      'handler' => 'flag_node',

    ),

    'user' => array(

      'title' => t('Users'),

      'description' => t('Users who have created accounts on your site.'),

      'handler' => 'flag_user',

    ),

  );

  if (module_exists('comment')) {

    $definitions['comment'] = array(

      'title' => t('Comments'),

      'description' => t('Comments are responses to node content.'),

      'handler' => 'flag_comment',

      'module' => 'comment',

    );

  }

  if (module_exists('taxonomy')) {

    $definitions['taxonomy_term'] = array(

      'title' => t('Taxonomy Terms'),

      'description' => t('Taxonomy terms are used to categorize content.'),

      'handler' => 'flag_entity',

      'module' => 'taxonomy',

    );

  }

  return $definitions;

}

/**

 * Implements hook_flag_type_info_alter().

 *

 * Step in and add flag types for any entities not yet catered for, using the

 * basic flag_entity handler. This allows other modules to provide more

 * specialized handlers for entities in hook_flag_type_info() as normal.

 */

function flag_flag_type_info_alter(&$definitions) {

  foreach (entity_get_info() as $entity_type => $entity_info) {

    // Only add flag support for entities that don't yet have them, and which

    // are non-config entities.

    if (!isset($definitions[$entity_type]) && empty($entity_info['configuration'])) {

      // We deliberately exclude taxonomy vocabularies from the list of

      // supported entity types because they aren't fieldable or directly

      // viewable, which makes them impossible to flag.

      if ($entity_type === 'taxonomy_vocabulary') {

        continue;

      }

      $definitions[$entity_type] = array(

        'title' => $entity_info['label'],

        'description' => t('@entity-type entity', array('@entity-type' => $entity_info['label'])),

        'handler' => 'flag_entity',

      );

    }

  }

}

/**

 * Implements hook_flag_link_type_info().

 */

function flag_flag_link_type_info() {

  return array(

    'toggle' => array(

      'title' => t('JavaScript toggle'),

      'description' => t('An AJAX request will be made and degrades to type "Normal link" if JavaScript is not available.'),

      'uses standard js' => TRUE,

      'uses standard css' => TRUE,

    ),

    'normal' => array(

      'title' => t('Normal link'),

      'description' => t('A normal non-JavaScript request will be made and the current page will be reloaded.'),

      'uses standard js' => FALSE,

      'uses standard css' => FALSE,

    ),

    'confirm' => array(

      'title' => t('Confirmation form'),

      'description' => t('The user will be taken to a confirmation form on a separate page to confirm the flag.'),

      'options' => array(

        'flag_confirmation' => '',

        'unflag_confirmation' => '',

      ),

      'uses standard js' => FALSE,

      'uses standard css' => FALSE,

      'provides form' => TRUE,

    ),

  );

}