fblike drupal module full

<?php

define('FBLIKE_IN_TEASER', 1);
define('FBLIKE_IN_FULL', 2);
define('FBLIKE_IN_BOTH', 3);

function fblike_perm() {
  return array('access fblike', 'administer fblike');
}

function fblike_menu() {
  $items['admin/settings/fblike'] = array(
    'title' => 'Facebook like',
    'page callback' => 'drupal_get_form',
    'page arguments' => array('fblike_settings_form'),
    'access arguments' => array('administer fblike'),
  );
  return $items;
}

function fblike_settings_form($form_state) {

  $form = array();
  $form['fblike_layout'] = array(
    '#type' => 'select',
    '#title' => t('Layout Style'),
    '#default_value' => variable_get('fblike_layout', 'standard'),
    '#options' => array('standard' => t('Standard'), 'button_count' => t('Button count')),
  );
  $form['fblike_faces'] = array(
    '#type' => 'checkbox',
    '#title' => t('Show faces'),
    '#default_value' => variable_get('fblike_faces', '1'),
  );
  $form['fblike_color'] = array(
    '#type' => 'select',
    '#title' => t('Color schema'),
    '#default_value' => variable_get('fblike_color', 'light'),
    '#options' => array('light' => t('Light'), 'dark' => t('Dark')),
  );
  $node_type_options = array();
  $node_types = node_get_types();
  foreach ($node_types as $type) {
    $node_type_options[$type->type] = $type->name;
  }
  $form['fblike_node_type'] = array(
    '#type' => 'select',
    '#title' => t('Node type'),
    '#default_value' => variable_get('fblike_node_type', array()),
    '#options' => $node_type_options,
    '#multiple' => TRUE,
  );
  $form['fblike_visibility'] = array(
    '#type' => 'select',
    '#title' => t('Visibility'),
    '#default_value' => variable_get('fblike_visibility', FBLIKE_IN_FULL),
    '#options' => array(
      FBLIKE_IN_TEASER => t('Teaser view'),
      FBLIKE_IN_FULL => t('Full-page view'),
      FBLIKE_IN_BOTH => t('Teasers and full-page view'),
    ),
  );
  $form['fblike_weight'] = array(
    '#type' => 'select',
    '#title' => t('Position'),
    '#default_value' => variable_get('fblike_weight', 100),
    '#options' => array(
      -100 => t('Top'),
      100 => t('Bottom'),
    ),
  );

  return system_settings_form($form);
}

function fblike_nodeapi(&$node, $op, $teaser = NULL, $page = NULL) {
  if (user_access('access fblike')) {
    switch ($op) {
      case 'view':
        if (in_array($node->type, variable_get('fblike_node_type', array()))) {
          $visible = FALSE;
          switch (variable_get('fblike_visibility', FBLIKE_IN_FULL)) {
            case FBLIKE_IN_TEASER:
              if ($teaser) {
                $visible = TRUE;
              }
            break;

            case FBLIKE_IN_FULL:
              if ($page) {
                $visible = TRUE;
              }
            break;

            case FBLIKE_IN_BOTH:
              if ($teaser || $page) {
                $visible = TRUE;
              }
            break;
          }
          if ($visible) {
            $options = array(
              'absolute' => TRUE,
              'alias' => FALSE,
            );
            $node_url = urlencode(url('node/'. $node->nid, $options));
            $node->content['content'] = array(
              '#value' => theme('fblike_frame', $node_url),
              '#weight' => variable_get('fblike_weight', 100),
            );
            drupal_set_html_head('<meta property="og:title" content="'. check_plain($node->title) .'"/>');
            drupal_set_html_head('<meta property="og:site_name" content="'. check_plain(variable_get('site_name', '')) .'"/>');
          }
        }
      break;
    }
  }
}

function fblike_theme() {
 return array(
    'fblike_frame' => array(
      'arguments' => array('url' => NULL),
    ),
  );
}

function theme_fblike_frame($url) {
  $layout = variable_get('fblike_layout', 'standard');
  $faces = variable_get('fblike_faces', '1') ? 'true' : 'false';
  $color = variable_get('fblike_color', 'light');
  $output = '<iframe src="http://www.facebook.com/plugins/like.php?href='. $url .'&amp;layout='. $layout .'&amp;show_faces='. $faces .'&amp;width=450&amp;action=like&amp;colorscheme='. $color .'" scrolling="no" frameborder="0" allowTransparency="true" style="border:none; overflow:hidden; width:100%; height:30px"></iframe>';
  return $output;
}