function fblikebutton_nodeapi in Facebook Like Button 6

Same name and namespace in other branches

1. 6.2 fblikebutton.module \fblikebutton_nodeapi()

Implementation of hook_nodeapi().

File

./fblikebutton.module, line 29

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.

Code

function fblikebutton_nodeapi(&$node, $op, $teaser, $page) {
  global $user, $base_url, $language;
  $likebase = $base_url . '/';
  $likepath = drupal_get_path_alias('node/' . $node->nid);
  $webpage_to_like = $likebase . $likepath;
  $lang_abbr = $language->language;
  $fblikebutton_lang = $lang_abbr . '_' . drupal_strtoupper($lang_abbr);
  switch ($op) {
    case 'view':

      // Whether to show faces in the iframe. (Thanks to dizarter for pointing out that the next few lines should be relocated to where they are now.)
      $fblikebutton_showonteasers = variable_get('fblikebutton_showonteasers', 0);

      // Set which node types users can "like".
      $types_to_like = variable_get('fblikebutton_node_types', array(
        'page',
      ));

      // Keep the fblikebutton button out of search results, teasers, etc., if set.
      if ($fblikebutton_showonteasers == 0) {
        if (!$page) {
          break;
        }
      }

      // Do not add the like button to any of the unchecked node types.
      if (!in_array($node->type, $types_to_like, TRUE)) {
        break;
      }

      // Whether or not to show the faces of people who have "liked" the node.
      $show_faces = variable_get('fblikebutton_show_faces', 'true');

      // Color scheme of the box. Options: "light" or "dark".
      $colorscheme = variable_get('fblikebutton_color_scheme', 'light');

      // Layout style. Options: "Standard", "Box Count", or "Button Count".
      $layout = variable_get('fblikebutton_layout', 'standard');

      // Action to display. Options: "Like" or "Recommend"
      $action = variable_get('fblikebutton_action', 'like');

      // Font to use.
      $font = variable_get('fblikebutton_font', 'arial');

      // Iframe height.
      $iframe_h = variable_get('fblikebutton_iframe_height', '80');

      // Iframe width.
      $iframe_w = variable_get('fblikebutton_iframe_width', '450');

      // Extra CSS to be tacked on to the end of the iframe. Example: padding-left: 5px; padding-top: 10px;
      $other_css = variable_get('fblikebutton_iframe_css', '');
      $other_css = trim($other_css);

      // Weight on the node
      $likebutton_weight = variable_get('fblikebutton_weight', '50');
      $likebutton_lang = variable_get('fblikebutton_language', $fblikebutton_lang);

      // The next part is whether or not to display the "Send" button next to the "Like" (or "Recommend") button.
      // CURRENTLY ONLY WORKS WITH XFBML (NOT IFRAME)... But it doesn't hurt anything and WILL
      // be in one of the next stable releases, so I'm leaving it there in case FB decides to enable
      // the feature to work with the iframe version. Until then, or until next stable release, see dev snapshot
      // if you require the "Send" button.
      $displaysend = variable_get('fblikebutton_send', 'true');

      // Since we're currently using the iframe version...
      $likebutton = '<iframe class="fblikebutton" src="https://www.facebook.com/plugins/like.php?href=' . urlencode($webpage_to_like) . '&amp;send=' . check_plain($displaysend) . '&amp;layout=' . check_plain($layout) . '&amp;show_faces=' . check_plain($show_faces) . '&amp;width=' . check_plain($iframe_w) . '&amp;action=' . check_plain($action) . '&amp;font=' . check_plain($font) . '&amp;colorscheme=' . check_plain($colorscheme) . '&amp;height=' . check_plain($iframe_h) . '&amp;locale=' . check_plain($likebutton_lang) . '" scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:' . check_plain($iframe_w) . 'px; height:' . check_plain($iframe_h) . 'px;' . check_plain($other_css) . '" allowTransparency="true"></iframe>';

      // Check permissions
      if (user_access('users may access Like button')) {

        // If set, keep the button out of teasers:
        if ($fblikebutton_showonteasers == 0) {
          if ($teaser) {
            break;
          }
        }
        $node->content['fblikebutton_button'] = array(
          '#value' => $likebutton,
          '#weight' => $likebutton_weight,
        );
        break;
      }
  }
}