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fblikebutton.module in Facebook Like Button 6.2

Same filename and directory in other branches
  1. 8 fblikebutton.module
  2. 6 fblikebutton.module
  3. 7.2 fblikebutton.module
  4. 7 fblikebutton.module

Adds Facebook's "Like" button to each selected node type. Adds a block with a global static value where users can "Like" the URL set by admins.

File

fblikebutton.module
View source 
<?php

// $Id$

/**
 * @file
 * Adds Facebook's "Like" button to each selected node type.
 * Adds a block with a global static value where users can "Like" the URL set by
 * admins.
 */

/**
 * Implements of hook_menu().
 */
function fblikebutton_menu() {
  $items['admin/settings/fblikebutton'] = array(
    'title' => 'FB Like Button',
    'description' => 'Configure the Facebook Like button',
    'page callback' => 'system_admin_menu_block_page',
    'access arguments' => array(
      'administer fblikebutton',
    ),
    'position' => 'right',
    'type' => MENU_NORMAL_ITEM,
    'file' => 'system.admin.inc',
    'file path' => drupal_get_path('module', 'system'),
  );
  $items['admin/settings/fblikebutton/dynamic'] = array(
    'title' => 'Dynamic Like button settings',
    'description' => 'Configure the settings for the Like button as it appears on individual nodes (liking that node).',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'fblikebutton_dynamic_settings',
    ),
    'access arguments' => array(
      'administer fblikebutton',
    ),
    'type' => MENU_NORMAL_ITEM,
    'file' => 'fblikebutton.admin.inc',
    'weight' => 0,
  );
  $items['admin/settings/fblikebutton/static'] = array(
    'title' => 'Static Like button settings',
    'description' => 'Configure the settings for the static Like button as it appears in the block (liking a given url). Use this to like for example your Facebook fanpage.',
    'page callback' => 'drupal_get_form',
    'page arguments' => array(
      'fblikebutton_static_settings',
    ),
    'access arguments' => array(
      'administer fblikebutton block',
    ),
    'type' => MENU_NORMAL_ITEM,
    'file' => 'fblikebutton.admin.inc',
    'weight' => 1,
  );
  return $items;
}

/**
 * Implements of hook_nodeapi().
 */
function fblikebutton_nodeapi(&$node, $op, $teaser, $page) {
  global $user;
  $types = variable_get('fblikebutton_node_types', array());
  $fullnodedisplay = variable_get('fblikebutton_full_node_display', 0);
  $teaserdisplay = variable_get('fblikebutton_teaser_display', 0);
  $show = !empty($types[$node->type]) && user_access('access fblikebutton');

  // Thanks to corbacho for supplying the code for the $webpage_to_like variable...
  // (It was apparently throwing errors/notices the way I had it set up.)
  $webpage_to_like = url("node/{$node->nid}", array(
    'absolute' => TRUE,
  ));
  $likebutton_weight = variable_get('fblikebutton_weight', '0');
  $conf = array(
    'layout' => variable_get('fblikebutton_layout', 'standard'),
    'action' => variable_get('fblikebutton_action', 'like'),
    'color_scheme' => variable_get('fblikebutton_color_scheme', 'light'),
    'show_faces' => variable_get('fblikebutton_show_faces', TRUE),
    'font' => variable_get('fblikebutton_font', 'arial'),
    'height' => variable_get('fblikebutton_iframe_height', '80'),
    'width' => variable_get('fblikebutton_iframe_width', '450'),
    'send' => variable_get('fblikebutton_send', 'true'),
    'other_css' => variable_get('fblikebutton_iframe_css', ''),
    'language' => variable_get('fblikebutton_language', 'en_US'),
  );

  // Content area
  if ($show && $teaser && $teaserdisplay == 1 || $show && $page && $fullnodedisplay == 0) {
    $node->content['fblikebutton_field'] = array(
      '#value' => _fblikebutton_field($webpage_to_like, $conf),
      '#weight' => $likebutton_weight,
    );
  }
}

/**
 * Implements of hook_link().
 */
function fblikebutton_link($type, $node = NULL, $teaser = FALSE) {
  global $user, $base_url, $language;
  $types = variable_get('fblikebutton_node_types', array());
  $fullnodedisplay = variable_get('fblikebutton_full_node_display', 0);
  $teaserdisplay = variable_get('fblikebutton_teaser_display', 0);
  $show = !empty($types[$node->type]) && user_access('access fblikebutton');

  // Thanks to corbacho for supplying the code for the $webpage_to_like variable...
  // (It was apparently throwing errors/notices the way I had it set up.)
  $webpage_to_like = url("node/{$node->nid}", array(
    'absolute' => TRUE,
  ));
  $likebutton_weight = variable_get('fblikebutton_weight', '0');
  $links = array();
  $conf = array(
    'layout' => variable_get('fblikebutton_layout', 'standard'),
    'action' => variable_get('fblikebutton_action', 'like'),
    'color_scheme' => variable_get('fblikebutton_color_scheme', 'light'),
    'show_faces' => variable_get('fblikebutton_show_faces', TRUE),
    'font' => variable_get('fblikebutton_font', 'arial'),
    'height' => variable_get('fblikebutton_iframe_height', '80'),
    'width' => variable_get('fblikebutton_iframe_width', '450'),
    'send' => variable_get('fblikebutton_send', 'true'),
    'other_css' => variable_get('fblikebutton_iframe_css', ''),
    'language' => variable_get('fblikebutton_language', 'en_US'),
  );

  // Link area
  if ($show && $teaser && $teaserdisplay == 2 || $show && !$teaser && $fullnodedisplay == 2) {
    $links['fblikebutton_field'] = array(
      'title' => _fblikebutton_field($webpage_to_like, $conf),
      'html' => TRUE,
    );
    return $links;
  }
}

/**
 * Implements of hook_perm().
 */
function fblikebutton_perm() {
  return array(
    'administer fblikebutton',
    'administer fblikebutton block',
    'access fblikebutton',
  );
}

/**
 * Implementation of hook_block()
 */
function fblikebutton_block($op = 'list', $delta = 0, $edit = array()) {
  switch ($op) {
    case 'list':
      $fullnodedisplay = variable_get('fblikebutton_full_node_display', 0);
      $blocks[0]['info'] = t('Static FB Like Button');
      $blocks[0]['cache'] = BLOCK_NO_CACHE;
      if ($fullnodedisplay == 1) {
        $blocks[1]['info'] = t('Dynamic FB Like Button');
        $blocks[1]['cache'] = BLOCK_NO_CACHE;
      }
      return $blocks;
    case 'configure':
      $form = array();
      if ($delta == 0 && user_access('administer fblikebutton block')) {
        $form['fblikebutton_static_block'] = array(
          '#type' => 'fieldset',
          '#title' => t('Static FB Like button block'),
          '#collapsible' => false,
        );
        $form['fblikebutton_static_block']['fblikebutton_static_config'] = array(
          '#type' => 'markup',
          '#value' => '<p>' . t('To configure the URL and the appearance of the button go to the ' . l(t('static Like button settings'), 'admin/settings/fblikebutton/static') . '. Make sure you set the right permissions on the ' . l(t('permissions page'), 'admin/user/permissions') . '.</p>'),
        );
      }
      if ($delta == 1 && user_access('administer fblikebutton block')) {
        $form['fblikebutton_dynamic_block'] = array(
          '#type' => 'fieldset',
          '#title' => t('Dynamic FB Like button block'),
          '#collapsible' => false,
        );
        $form['fblikebutton_dynamic_block']['fblikebutton_dynamic_config'] = array(
          '#markup' => '<p>' . t('To configure the visibility and the appearance of the button go to the ' . l(t('dynamic Like button settings'), 'admin/config/fblikebutton/dynamic') . '. You can enhance the visibility settings by using the settings on this page. Make sure you set the right permissions on the ' . l(t('permissions page'), 'admin/people/permissions') . '.</p>'),
        );
      }
      return $form;
    case 'view':
      global $base_url;
      $node = node_load(arg(1));
      $types = variable_get('fblikebutton_node_types', array());
      if ($node) {
        $show = !empty($types[$node->type]) && user_access('access fblikebutton');
      }
      else {
        $show = NULL;
      }
      $fullnodedisplay = variable_get('fblikebutton_full_node_display', 0);
      if ($delta == 1 && $show && $fullnodedisplay == 1 && $node) {
        $webpage_to_like = url("node/{$node->nid}", array(
          'absolute' => TRUE,
        ));
        $conf = array(
          'layout' => variable_get('fblikebutton_layout', 'standard'),
          'action' => variable_get('fblikebutton_action', 'like'),
          'color_scheme' => variable_get('fblikebutton_color_scheme', 'light'),
          'show_faces' => variable_get('fblikebutton_show_faces', TRUE),
          'font' => variable_get('fblikebutton_font', 'arial'),
          'height' => variable_get('fblikebutton_iframe_height', '80'),
          'width' => variable_get('fblikebutton_iframe_width', '450'),
          'send' => variable_get('fblikebutton_send', 'true'),
          'other_css' => variable_get('fblikebutton_iframe_css', ''),
          'language' => variable_get('fblikebutton_language', 'en_US'),
        );
        $block['content'] = _fblikebutton_field($webpage_to_like, $conf);
      }
      else {
        $block['content'] = NULL;
      }
      if ($delta == 0) {
        $addr = variable_get('fblikebutton_block_url', $base_url);
        $conf = array(
          'layout' => variable_get('fblikebutton_bl_layout', "standard"),
          'action' => variable_get('fblikebutton_bl_action', "like"),
          'color_scheme' => variable_get('fblikebutton_bl_color_scheme', "light"),
          'show_faces' => variable_get('fblikebutton_bl_show_faces', FALSE),
          'font' => variable_get('fblikebutton_bl_font', "arial"),
          'height' => variable_get('fblikebutton_bl_iframe_height', '80'),
          'width' => variable_get('fblikebutton_bl_iframe_width', '450'),
          'other_css' => variable_get('fblikebutton_bl_iframe_css', ''),
          'language' => variable_get('fblikebutton_bl_language', 'en_US'),
        );
        $block['content'] = _fblikebutton_field($addr, $conf);
      }
      return $block;
  }
}
function _fblikebutton_field($webpage_to_like, $conf) {
  $webpage_to_like = urlencode($webpage_to_like);
  $width = $conf['width'];
  $height = $conf['height'];
  $layout = $conf['layout'];
  $action = $conf['action'];
  $colorscheme = $conf['color_scheme'];
  $show_faces = $conf['show_faces'] ? 'true' : 'false';
  $font = $conf['font'];

  //  $send = $conf['send'];
  $other_css = $conf['other_css'];
  $language = $conf['language'] ? '&locale=' . $conf['language'] : '';
  $params = "href={$webpage_to_like}&layout={$layout}&show_faces={$show_faces}&width={$width}&font={$font}&height={$height}&action={$action}&colorscheme={$colorscheme}{$language}&send=false";
  $src = htmlentities($params);
  $output = '<iframe src="https://www.facebook.com/plugins/like.php?' . $src . '" scrolling="no" frameborder="0" style="border: none; overflow: hidden; width: ' . $width . 'px; height: ' . $height . 'px;' . $other_css . '" allowTransparency="true"></iframe>';
  return $output;
}

Functions

Namesort descending Description
fblikebutton_block Implementation of hook_block()
fblikebutton_link Implements of hook_link().
fblikebutton_menu Implements of hook_menu().
fblikebutton_nodeapi Implements of hook_nodeapi().
fblikebutton_perm Implements of hook_perm().
_fblikebutton_field