class.ilChatUserActionProvider.php

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<?php

/* Copyright (c) 1998-2015 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once("./Services/User/Actions/classes/class.ilUserActionProvider.php");

class ilChatUserActionProvider extends ilUserActionProvider
{
        protected static $user_access = array();

        protected static $accepts_messages_cache = array();

        protected $pub_ref_id = 0;

        protected $chat_enabled = false;

        protected $osc_enabled = false;

        public function __construct()
        {
                parent::__construct();

                include_once 'Modules/Chatroom/classes/class.ilObjChatroom.php';
                $this->pub_ref_id = ilObjChatroom::_getPublicRefId();

                $chatSettings = new ilSetting('chatroom');
                $this->chat_enabled = $chatSettings->get('chat_enabled');
                $this->osc_enabled  = $chatSettings->get('enable_osc');

                $this->lng->loadLanguageModule('chatroom');
        }

        function getComponentId()
        {
                return "chtr";
        }

        function getActionTypes()
        {
                return array(
                        "invite" => $this->lng->txt('chat_user_action_invite_public_room'),
                        "invite_osd" => $this->lng->txt('chat_user_action_invite_osd')
                );
        }


        protected function checkUserChatAccess($a_user_id)
        {
                if(!array_key_exists($a_user_id, self::$user_access))
                {
                        self::$user_access[$a_user_id] = $GLOBALS['DIC']->rbac()->system()->checkAccessOfUser($a_user_id, 'read', $this->pub_ref_id);
                }

                return self::$user_access[$a_user_id];
        }

        protected function acceptsMessages($a_user_id)
        {
                if(!array_key_exists($a_user_id, self::$accepts_messages_cache))
                {
                        self::$accepts_messages_cache[$a_user_id] = ilUtil::yn2tf(ilObjUser::_lookupPref($a_user_id, 'chat_osc_accept_msg'));
                }

                return self::$accepts_messages_cache[$a_user_id];
        }

        function collectActionsForTargetUser($a_target_user)
        {
                $coll = ilUserActionCollection::getInstance();
                include_once("./Services/User/Actions/classes/class.ilUserAction.php");

                require_once 'Services/User/classes/class.ilObjUser.php';

                if(!$this->chat_enabled)
                {
                        return $coll;
                }

                if($this->checkUserChatAccess($this->getUserId()))
                {
                        // no chat with user him/herself
                        if ($a_target_user != $this->getUserId())
                        {
                                if($this->checkUserChatAccess($a_target_user))
                                {
                                        $f = new ilUserAction();
                                        $f->setType("invite");
                                        $f->setText($this->lng->txt('chat_invite_public_room'));
                                        $f->setHref('./ilias.php?baseClass=ilRepositoryGUI&amp;ref_id=' . $this->pub_ref_id . '&amp;usr_id=' . $a_target_user . '&amp;cmd=view-invitePD');
                                        $coll->addAction($f);
                                }
                        }
                }

                if($this->osc_enabled)
                {
                        $f = new ilUserAction();
                        $f->setHref('#');
                        $f->setType("invite_osd");
                        if($this->acceptsMessages($a_target_user))
                        {
                                $f->setText($this->lng->txt('chat_osc_start_conversation'));
                                $f->setData(array(
                                        'onscreenchat-userid'   => $a_target_user,
                                        'onscreenchat-username' => ilObjUser::_lookupLogin($a_target_user)
                                ));
                        }
                        else
                        {
                                $f->setText($this->lng->txt('chat_osc_doesnt_accept_msg'));
                                $f->setData(array(
                                        'onscreenchat-inact-userid'   => $a_target_user
                                ));
                        }
                        $coll->addAction($f);
                }

                return $coll;
        }
}
?>