/**
* Create the default calendar share for the current user.
*
* @return Horde_Share_Object The new default share.
*/
public function createDefaultShare()
{
$share = $this->_shares->newShare($this->_user, strval(new Horde_Support_Randomid()), $this->_getDefaultShareName());
$share->set('color', Kronolith::randomColor());
$this->_prepareDefaultShare($share);
$this->_shares->addShare($share);
return $share;
}