fb_invite.module in Drupal for Facebook 7.3

File

contrib/fb_invite.module

<?php

/**
 * Implements hook_menu().
 */
function fb_invite_menu() {

  // Invite page for the current app.
  $items['fb_invite'] = array(
    'title' => 'Invite friends',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'fb_invite_invite_form',
      1,
    ),
    'access callback' => 'fb_invite_access_cb',
    'type' => MENU_CALLBACK,
  );
  return $items;
}
function fb_invite_access_cb() {
  extract(fb_vars());
  if ($fb_app) {

    // There is a current app.
    return TRUE;
  }
  else {
    return FALSE;
  }
}
function fb_invite_invite_form($form, &$form_state, $account) {
  global $user;

  // Add our module's javascript.
  drupal_add_js(drupal_get_path('module', 'fb_invite') . '/fb_invite.js', array(
    'type' => 'file',
    'scope' => 'header',
    'group' => JS_LIBRARY,
  ));
  drupal_add_js(array(
    'fb_invite' => array(
      'site_name' => variable_get('site_name', 'Drupal'),
    ),
  ), 'setting');
  drupal_add_css(drupal_get_path('module', 'fb_invite') . '/fb_invite.theme.css');
  extract(fb_vars());

  // $fb, $fb_app and $fbu
  if ($fb && $fbu) {

    // User is connected to facebook.
    // Javascript will render the names.
    $form['no_js'] = array(
      '#type' => 'markup',
      '#markup' => t('Enable javascript to invite your facebook friends.'),
      '#prefix' => '<p class="fb_hide">',
      '#suffix' => '</p>',
    );
    $form['fb_invite'] = array(
      '#prefix' => '<table id="fb_invite_wrapper" class="fb_connected"><tr>',
      '#suffix' => '</tr></table>',
    );

    // Template for markup showing friends not app users.
    $header = t('Invite Friends');
    $form['fb_invite']['friend_template'] = array(
      '#prefix' => '<td><table id="fb_invite_friends_wrapper"  style="clear:both;"><th colspan=3>' . $header . '</th><tr id="fb_invite_friend_template" style="display:none;">',
      '#suffix' => '</tr></table></td>',
    );
    $form['fb_invite']['friend_template']['fb_invite_img'] = array(
      '#type' => 'markup',
      '#prefix' => '<td>',
      '#suffix' => '</td>',
      '#markup' => '<img class="fb_invite_img" src=""></img>',
    );
    $form['fb_invite']['friend_template']['fb_invite_name'] = array(
      '#type' => 'markup',
      '#prefix' => '<td>',
      '#suffix' => '</td>',
      '#markup' => '<span class="fb_invite_name"></span>',
    );
    $form['fb_invite']['friend_template']['fb_invite_button'] = array(
      '#prefix' => '<td>',
      '#suffix' => '</td>',
      '#type' => 'button',
      '#value' => t('Invite'),
      '#attributes' => array(
        'class' => array(
          'fb_invite_button',
        ),
      ),
    );

    // Template for markup showing friends who are users.
    $header = t('Friends on %site', array(
      '%site' => variable_get('site_name', 'Drupal'),
    ));
    $form['fb_invite']['user_template'] = array(
      '#prefix' => '<td><table id="fb_invite_user_wrapper"  style="clear:both;"><th colspan=2>' . $header . '</th><tr id="fb_invite_user_template" style="display:none;">',
      '#suffix' => '</tr></table></td>',
    );

    // Javascript will replace !fbu with the users facebook id.
    $form['fb_invite']['user_template']['fb_invite_img'] = array(
      '#type' => 'markup',
      '#prefix' => '<td>',
      '#suffix' => '</td>',
      '#markup' => '<img class="fb_invite_img" src=""></img>',
    );
    $form['fb_invite']['user_template']['fb_invite_name'] = array(
      '#type' => 'markup',
      '#prefix' => '<td>',
      '#suffix' => '</td>',
      '#markup' => "<span class=\"fb_invite_name\"></span>",
    );
    if (module_exists('fb_user')) {

      // Link to local accounts.
      foreach ($form['fb_invite']['user_template'] as $key => $markup) {

        // Javascript will provide href to fb_user/fbu
        $form['fb_invite']['user_template'][$key]['#prefix'] = $markup['#prefix'] . '<a href="" class="fb_invite_user_link">';
        $form['fb_invite']['user_template'][$key]['#suffix'] = '</a>' . $markup['#suffix'];
      }
    }

    /*
    $form['fb_invite_mfs'] = array(
      '#type' => 'button',
      '#value' => t("Invite several friends"),
      '#attributes' => array('onclick' => array('FB_Invite.sendInviteMFS(); return false;'), 'class' => array('fb_connected')),
    );
    */
  }
  elseif ($fb && !$fbu) {

    // user is not connected to facebook.
    $form['connect'] = array(
      '#type' => 'markup',
      '#markup' => theme('fb_login_button', array(
        'text' => t('Connect to invite your Facebook friends'),
      )),
    );
  }
  return $form;
}

Functions

Name	Description
fb_invite_access_cb
fb_invite_invite_form
fb_invite_menu	Implements hook_menu().