nodejs_buddylist.module in Node.js integration 7

File

nodejs_buddylist/nodejs_buddylist.module

<?php

/**
 * TODO: this module should probably be spun out
 * into it's own project. I'm not sure what it's good
 * for at this point.
 */

/**
 * Implements hook_theme().
 */
function nodejs_buddylist_theme() {
  return array(
    'nodejs_buddylist_chat_button' => array(
      'variables' => array(
        'buddy' => NULL,
        'online' => NULL,
      ),
    ),
  );
}

/**
 * Implements hook_init().
 */
function nodejs_buddylist_init() {
  drupal_add_css(drupal_get_path('module', 'nodejs_buddylist') . '/nodejs_buddylist.css');
  drupal_add_js(drupal_get_path('module', 'nodejs_buddylist') . '/nodejs_buddylist.js');
}

/**
 * Implements hook_nodejs_user_presence_list().
 */
function nodejs_buddylist_nodejs_user_presence_list($account) {
  return array_keys(nodejs_buddylist_user_list($account));
}

/**
 * Get a list of buddies for the given account.
 *
 * @param $account
 * @return array
 */
function nodejs_buddylist_user_list($account) {
  return flag_friend_get_friends($account->uid);
}

/**
 * Implements hook_permission().
 */
function nodejs_buddylist_permission() {
  return array(
    'use nodejs_buddylist' => array(
      'title' => t('Use Node.js Buddylist'),
      'description' => t('Allows users to use node.js buddylist.'),
    ),
  );
}

/**
 * Implementation of hook_block_info.
 */
function nodejs_buddylist_block_info() {
  return array(
    'nodejs_buddylist_buddylist' => array(
      'info' => 'Node.js Buddylist a specific users buddylist.',
      'cache' => DRUPAL_NO_CACHE,
    ),
  );
}

/**
 * Implementation of hook_block_view().
 */
function nodejs_buddylist_block_view($delta = '') {
  global $user;
  $block = array();
  switch ($delta) {
    case 'nodejs_buddylist_buddylist':
      $block['subject'] = t('Your Buddylist');
      $block['content'] = nodejs_buddylist_block_content($user);
      break;
    default:
      break;
  }
  return $block;
}

/**
 * Get the content for the buddy list block.
 */
function nodejs_buddylist_block_content($account, $id_prefix = 'nodejs-buddylist-uid-') {
  $buddies = nodejs_buddylist_user_list($account);
  if ($buddies) {
    $online_uids = nodejs_buddylist_get_online_uids(array_keys($buddies));
    $html = '<ul>';
    $chat_enabled = module_exists('chatroom_nodejs');
    foreach ($buddies as $buddy) {
      $buddy = user_load($buddy['uid']);
      $id = $id_prefix . $buddy->uid;
      $class = 'nodejs-buddylist-' . (in_array($buddy->uid, $online_uids) ? 'online' : 'offline');
      $chat_button = '';
      if ($chat_enabled && $class == 'nodejs-buddylist-online') {
        $chat_button = theme('nodejs_buddylist_chat_button', array(
          'buddy' => $buddy,
          'online' => TRUE,
        ));
      }
      else {
        $chat_button = theme('nodejs_buddylist_chat_button', array(
          'buddy' => $buddy,
          'online' => FALSE,
        ));
      }
      $html .= '<li id="' . $id . '" class="' . $class . '">';
      $html .= theme('username', array(
        'account' => $buddy,
      )) . $chat_button;
      $html .= '</li>';
    }
    $html .= '</ul>';
    return $html;
  }
  else {
    return t("You have no buddies.");
  }
}

/**
 * Theme the start chat button.
 */
function theme_nodejs_buddylist_chat_button($variables) {
  $buddy = $variables['buddy'];
  $class = $variables['online'] ? 'chat-link-wrapper-online' : 'chat-link-wrapper-offline';
  return '<span class="chat-link-wrapper ' . $class . '"> | <a class="nodejs-buddylist-start-chat-link" href="#start-chat-' . $buddy->uid . '">' . t('Chat') . '</a></span>';
}

/**
 * Filter the given list of uids based on who is online.
 */
function nodejs_buddylist_get_online_uids($uids) {
  return db_select('nodejs_presence', 'njp')
    ->condition('njp.uid', $uids, 'IN')
    ->fields('njp', array(
    'uid',
  ))
    ->execute()
    ->fetchCol();
}

/**
 * Implements hook_page_alter().
 *
 * @todo make it themable.
 */
function nodejs_buddylist_page_alter(&$page) {
  global $user;
  if (user_access('use nodejs_buddylist')) {
    $buddy_list_html = nodejs_buddylist_block_content($user, 'nodejs-chatbar-uid-');
    $chatbar_settings = array(
      'chatbar_settings' => '<div id="chatbar"><div id="buddy-list" class="section-container"><a id="buddy-toggle" class="tab-button">' . t('Buddys') . '</a><div class="chatbar-pane"><h2>' . t('Your Buddylist') . '</h2>' . $buddy_list_html . '</div></div></div>',
    );
    drupal_add_js($chatbar_settings, 'setting');
  }
}

Functions

Name	Description
nodejs_buddylist_block_content	Get the content for the buddy list block.
nodejs_buddylist_block_info	Implementation of hook_block_info.
nodejs_buddylist_block_view	Implementation of hook_block_view().
nodejs_buddylist_get_online_uids	Filter the given list of uids based on who is online.
nodejs_buddylist_init	Implements hook_init().
nodejs_buddylist_nodejs_user_presence_list	Implements hook_nodejs_user_presence_list().
nodejs_buddylist_page_alter	Implements hook_page_alter().
nodejs_buddylist_permission	Implements hook_permission().
nodejs_buddylist_theme	Implements hook_theme().
nodejs_buddylist_user_list	Get a list of buddies for the given account.
theme_nodejs_buddylist_chat_button	Theme the start chat button.