/**
* Check whether a username is valid.
*
* @param string $username The username to validate.
* @return boolean Whether the username is valid.
*/
public function isValidUsername($username = null)
{
if (is_null($username)) {
$username = $this->tweet;
}
$length = mb_strlen($username);
if (empty($username) || !$length) {
return false;
}
$extracted = $this->extractor->extractMentionedScreennames($username);
return count($extracted) === 1 && $extracted[0] === substr($username, 1);
}
function theme_action_icons($status)
{
$from = $status->from->screen_name;
$retweeted_by = $status->retweeted_by->user->screen_name;
$retweeted_id = $status->retweeted_by->id;
$geo = $status->geo;
$actions = array();
if (!$status->is_direct) {
$actions[] = theme('action_icon', "user/{$from}/reply/{$status->id}", 'images/reply.png', '@');
}
//Reply All functionality.
if (substr_count($status->text, '@') >= 1) {
$found = Twitter_Extractor::extractMentionedScreennames($status->text);
$to_users = array_unique($found);
$key = array_search(user_current_username(), $to_users);
// Remove the username of the authenticated user
if ($key != NULL || $key !== FALSE) {
unset($to_users[$key]);
// remove the username from array
}
if (count($to_users) >= 1) {
$actions[] = theme('action_icon', "user/{$from}/replyall/{$status->id}", 'images/replyall.png', 'REPLY ALL');
}
}
if (!user_is_current_user($from)) {
$actions[] = theme('action_icon', "directs/create/{$from}", 'images/dm.png', 'DM');
}
if (!$status->is_direct) {
if ($status->favorited == '1') {
$actions[] = theme('action_icon', "unfavourite/{$status->id}", 'images/star.png', 'UNFAV');
} else {
$actions[] = theme('action_icon', "favourite/{$status->id}", 'images/star_grey.png', 'FAV');
}
$actions[] = theme('action_icon', "retweet/{$status->id}", 'images/retweet.png', 'RT');
if (user_is_current_user($from)) {
$actions[] = theme('action_icon', "confirm/delete/{$status->id}", 'images/trash.gif', 'DEL');
}
if ($retweeted_by) {
if (user_is_current_user($retweeted_by)) {
$actions[] = theme('action_icon', "confirm/delete/{$retweeted_id}", 'images/trash.gif', 'DEL');
}
}
} else {
$actions[] = theme('action_icon', "directs/delete/{$status->id}", 'images/trash.gif', 'DEL');
}
if ($geo !== null) {
$latlong = $geo->coordinates;
$lat = $latlong[0];
$long = $latlong[1];
$actions[] = theme('action_icon', "http://maps.google.co.uk/m?q={$lat},{$long}", 'images/map.png', 'MAP');
}
//Search for @ to a user
$actions[] = theme('action_icon', "search?query=%40{$from}", 'images/q.png', '?');
return implode(' ', $actions);
}
