facebookshare.module in Facebook Share 6

Adds a button to a node to share on a user's Facebook stream

File

facebookshare.module

<?php

/**
 * @file
 * Adds a button to a node to share on a user's Facebook stream
 */

/**
 * Implements hook_help()
 */
function facebookshare_help($path, $arg) {
  switch ($path) {
    case 'admin/settings/facebookshare':
    case 'admin/help#facebookshare':
      return '<p>' . t('Provides a way for viewers to share a link to a node on' . ' their Facebook stream.') . '</p>';
  }
}

/**
 * Implements hook_perm()
 */
function facebookshare_perm() {
  return array(
    'administer facebookshare',
    'access facebookshare',
  );
}

/**
 * Implements hook_menu()
 */
function facebookshare_menu() {
  $item['admin/settings/facebookshare'] = array(
    'title' => 'Facebook Share',
    'description' => 'Provides the configuration options for how Facebook Share operates on the site.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'facebookshare_admin_settings',
    ),
    'access arguments' => array(
      'administer facebookshare',
    ),
    'file' => 'facebookshare.admin.inc',
  );
  return $item;
}

/**
 * Implements hook_nodeapi()
 */
function facebookshare_nodeapi(&$node, $op, $teaser = NULL, $page = NULL) {
  if ($op == 'view') {

    // Make sure we're on the right content type.
    if (!in_array($node->type, variable_get('facebookshare_types', array()), TRUE)) {
      return NULL;
    }

    // Make sure we're actually building the page to render in a browser.
    if ($node->build_mode != NODE_BUILD_NORMAL) {
      return NULL;
    }

    // Make sure the user has access to use Facebook Share.
    if (!user_access('access facebookshare')) {
      return NULL;
    }

    // Retrieve the location where we should show it, the style and the URL of the button.
    $location = variable_get('facebookshare_location', array());
    $url = url('node/' . $node->nid, array(
      'absolute' => TRUE,
    ));
    $weight = check_plain(variable_get('facebookshare_weight', -10));

    // Check in the teaser and full view.
    if ($teaser && !empty($location['teasers']) || !$teaser && !empty($location['content'])) {
      drupal_add_css(drupal_get_path('module', 'facebookshare') . '/facebookshare.css');
      $node->content['facebookshare'] = array(
        '#value' => theme('facebookshare', $url),
        '#weight' => is_numeric($weight) ? (int) $weight : -10,
      );
    }
  }
}

/**
 * Implements hook_theme()
 */
function facebookshare_theme($existing, $type, $theme, $path) {
  return array(
    'facebookshare' => array(
      'arguments' => array(
        'url' => NULL,
      ),
    ),
    'facebookshare_button' => array(
      'arguments' => array(
        'url' => NULL,
        'size' => NULL,
        'text' => NULL,
      ),
    ),
  );
}

/**
 * Themes facebook share button box
 */
function theme_facebookshare($url) {
  $output = '<div class="facebookshare-box">';
  $output .= theme('facebookshare_button', $url, check_plain(variable_get('facebookshare_size', '')), check_plain(variable_get('facebookshare_text', '')));
  $output .= '</div>';
  return $output;
}

/**
 * Themes facebook share button
 */
function theme_facebookshare_button($url, $size, $text) {
  $output = '<a name="fb_share" ' . 'type="' . $size . '" share_url="' . $url . '">' . $text . '</a>' . '<script src="http://static.ak.fbcdn.net/connect.php/js/FB.Share" ' . 'type="text/javascript"></script>';
  return $output;
}

Functions

Name	Description
facebookshare_help	Implements hook_help()
facebookshare_menu	Implements hook_menu()
facebookshare_nodeapi	Implements hook_nodeapi()
facebookshare_perm	Implements hook_perm()
facebookshare_theme	Implements hook_theme()
theme_facebookshare	Themes facebook share button box
theme_facebookshare_button	Themes facebook share button