+
+ /**
+ * Add links in the user's profile block to their Twitter profile URL.
+ *
+ * @param Profile $profile The profile being shown
+ * @param Array &$links Writeable array of arrays (href, text, image).
+ *
+ * @return boolean hook value (true)
+ */
+
+ function onOtherAccountProfiles($profile, &$links)
+ {
+ $fuser = null;
+
+ try {
+ $flink = Foreign_link::getByUserID($profile->id, TWITTER_SERVICE);
+ $fuser = $flink->getForeignUser();
+
+ $links[] = array("href" => $fuser->uri,
+ "text" => sprintf(_("@%s on Twitter"), $fuser->nickname),
+ "image" => $this->path("icons/twitter-bird-white-on-blue.png"));
+ } catch (NoResultException $e) {
+ // no foreign link and/or user for Twitter on this profile ID
+ }
+
+ return true;
+ }
+
+ public function onEndShowHeadElements(Action $action)
+ {
+ if (!($action instanceof AttachmentAction)) {
+ return true;
+ }
+
+ /* Twitter card support. See https://dev.twitter.com/docs/cards */
+ /* @fixme: should we display twitter cards only for attachments posted
+ * by local users ? Seems mandatory to display twitter:creator
+ *
+ * Author: jbfavre
+ */
+ switch ($action->attachment->mimetype) {
+ case 'image/pjpeg':
+ case 'image/jpeg':
+ case 'image/jpg':
+ case 'image/png':
+ case 'image/gif':
+ $action->element('meta', array('name' => 'twitter:card',
+ 'content' => 'photo'),
+ null);
+ $action->element('meta', array('name' => 'twitter:url',
+ 'content' => common_local_url('attachment',
+ array('attachment' => $action->attachment->id))),
+ null );
+ $action->element('meta', array('name' => 'twitter:image',
+ 'content' => $action->attachment->url));
+ $action->element('meta', array('name' => 'twitter:title',
+ 'content' => $action->attachment->title));
+
+ $ns = new AttachmentNoticeSection($action);
+ $notices = $ns->getNotices();
+ $noticeArray = $notices->fetchAll();
+
+ // Should not have more than 1 notice for this attachment.
+ if( count($noticeArray) != 1 ) { break; }
+ $post = $noticeArray[0];
+
+ try {
+ $flink = Foreign_link::getByUserID($post->profile_id, TWITTER_SERVICE);
+ $fuser = Foreign_user::getForeignUser($flink->foreign_id, TWITTER_SERVICE);
+ $action->element('meta', array('name' => 'twitter:creator',
+ 'content' => '@'.$fuser->nickname));
+ } catch (NoResultException $e) {
+ // no foreign link and/or user for Twitter on this profile ID
+ }
+ break;
+ default:
+ break;
+ }
+
+ return true;
+ }