facebook_comments_box.module in Facebook Comments Box 6

Add Facebook Comments to selected content types on your site.

File

facebook_comments_box.module

<?php

/**
 * @file
 * Add Facebook Comments to selected content types on your site.
 */

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

  // The main admin screen.
  $items['admin/settings/facebook_comments_box'] = array(
    'title' => 'Facebook Comments Box',
    'description' => 'Add Facebook Comments to selected content types on your site.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'facebook_comments_box_config',
    ),
    'type' => MENU_NORMAL_ITEM,
    'access arguments' => array(
      'administer site configuration',
    ),
  );
  return $items;
}

/**
 * Implements hook_block().
 */
function facebook_comments_box_block($op = 'list', $delta = 0, $edit = array()) {
  if ($op == 'list') {
    $blocks['facebook_comments_box'] = array(
      'info' => t('Facebook Comments Box'),
    );
    return $blocks;
  }
  else {
    if ($op == 'view') {
      $block = array();
      switch ($delta) {
        case 'facebook_comments_box':
          $fcb_title = '';
          $node_type = '';

          // Get which node types should have comments.
          $fcb_node_types = variable_get('facebook_comments_box_default_node_types', array(
            NULL,
          ));

          // Figure out which node and nodetype we're on, puts comments only on
          // nodes (as opposed to the front page, views pages, term pages, etc.)
          if (arg(0) == 'node' && is_numeric(arg(1))) {
            $nid = arg(1);
            $node = node_load($nid);
            $node_type = $node->type;
            $fcb_title = check_plain($node->title);
          }

          // If the nodetype is set and selected in config, then load the comments
          // on the page.
          if (isset($node_type) && in_array($node_type, $fcb_node_types) && $node->status) {

            // Figure out the current absolute URL.
            $path = isset($_GET['q']) ? $_GET['q'] : '<front>';
            $fcb_url = url($path, array(
              'absolute' => TRUE,
            ));

            // Meta mark up for the page.
            $markup = '<meta property="og:type" content="Article" />';
            $markup .= '<meta property="og:title" content="' . $fcb_title . '"/>';
            $markup .= '<meta property="og:url" content="' . $fcb_url . '"/>';
            $markup .= '<meta property="og:image" content="' . theme_get_setting('logo') . '"/>';
            $markup .= '<meta property="fb:admins" content="' . check_plain(variable_get('facebook_comments_box_admin_id', NULL)) . '">';

            // Add meta data to the HEAD.
            drupal_set_html_head($markup);

            // Set the title of the block.
            $block['subject'] = t('Facebook Comments Box');

            // Set the content of the block.
            $fcb_content = '<div class="facebook-comments-box">';
            $fcb_content .= '<div id="fb-root"></div>';
            $fcb_content .= '<script src="http://connect.facebook.net/en_US/all.js#xfbml=1"></script>';
            $fcb_content .= '<fb:comments href="' . $fcb_url . '" ';
            $fcb_content .= ' num_posts="' . check_plain(variable_get('facebook_comments_box_default_comments', 10)) . '" ';
            $fcb_content .= ' width="' . check_plain(variable_get('facebook_comments_box_default_width', 400)) . '" ';
            $fcb_content .= ' colorscheme="' . variable_get('facebook_comments_box_default_theme', 'light') . '" ></fb:comments></div>';
            $block['content'] = $fcb_content;
          }
          break;
      }
    }
  }
  return $block;
}

/**
 * Main configuration screen.
 */
function facebook_comments_box_config() {

  // Global settings for the whole module.
  $form['facebook_comments_box_global'] = array(
    '#type' => 'fieldset',
    '#title' => t('Global Settings'),
    '#collapsible' => TRUE,
  );
  $form['facebook_comments_box_global']['facebook_comments_box_admin_id'] = array(
    '#type' => 'textfield',
    '#title' => t('Facebook Admin ID'),
    '#default_value' => variable_get('facebook_comments_box_admin_id', NULL),
    '#description' => t('Your Facebook Admin Username, ID or App ID. More than one admin can be separated by commas.'),
    '#required' => TRUE,
  );

  // Default settings for each block gets that you can configure and change by
  // block // (the first version of this gets one global setting for all node
  // types).
  $form['facebook_comments_box_default_block'] = array(
    '#type' => 'fieldset',
    '#title' => t('Default Block Settings'),
    '#collapsible' => TRUE,
  );
  $form['facebook_comments_box_default_block']['facebook_comments_box_default_comments'] = array(
    '#type' => 'select',
    '#title' => t('Default Number of Comments'),
    '#default_value' => variable_get('facebook_comments_box_default_comments', 10),
    '#options' => array(
      10 => 10,
      20 => 20,
      30 => 30,
      50 => 50,
      100 => 100,
    ),
    '#description' => t('The number of comments to show by default on the page displaying them.'),
    '#required' => TRUE,
  );
  $form['facebook_comments_box_default_block']['facebook_comments_box_default_width'] = array(
    '#type' => 'textfield',
    '#title' => t('Default Width of Comments (in pixels)'),
    '#default_value' => variable_get('facebook_comments_box_default_width', 400),
    '#size' => 4,
    '#maxlength' => 4,
    '#description' => t('The width of the comments with a minimum of 400px.'),
    '#required' => TRUE,
  );
  $form['facebook_comments_box_default_block']['facebook_comments_box_default_theme'] = array(
    '#type' => 'select',
    '#title' => t('Default Theme'),
    '#default_value' => variable_get('facebook_comments_box_default_theme', 'light'),
    '#options' => array(
      'light' => t('Light'),
      'dark' => t('Dark'),
    ),
    '#description' => t('The default theme to use for comments.'),
    '#required' => TRUE,
  );

  // Store the node type keys as values for easier comparison.
  $fcb_all_node_types_keys = array_keys(node_get_types());
  $fcb_all_node_types = array();
  foreach ($fcb_all_node_types_keys as $node_type) {
    $fcb_all_node_types[$node_type] = $node_type;
  }
  $form['facebook_comments_box_default_block']['facebook_comments_box_default_node_types'] = array(
    '#type' => 'select',
    '#title' => t('Default Node Types'),
    '#default_value' => variable_get('facebook_comments_box_default_node_types', NULL),
    '#options' => $fcb_all_node_types,
    '#multiple' => TRUE,
    '#description' => t('The node types to attach comments to. This will make comments available for each of the selected node types.'),
    '#required' => TRUE,
  );
  return system_settings_form($form);
}

Functions

Name	Description
facebook_comments_box_block	Implements hook_block().
facebook_comments_box_config	Main configuration screen.
facebook_comments_box_menu	Implements hook_menu().