class.ilBuddySystemLinkButton.php

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

require_once 'Services/JSON/classes/class.ilJsonUtil.php';
require_once 'Services/Contact/BuddySystem/classes/class.ilBuddyList.php';
require_once 'Services/Contact/BuddySystem/classes/class.ilBuddySystemGUI.php';
require_once 'Services/Contact/BuddySystem/classes/states/class.ilBuddySystemRelationStateFactory.php';
require_once 'Services/Contact/BuddySystem/interfaces/interface.ilBuddySystemLinkButtonType.php';

class ilBuddySystemLinkButton implements ilBuddySystemLinkButtonType
{
        protected $usr_id;

        protected $buddylist;

        protected $lng;

        protected $user;

        protected function __construct($usr_id)
        {
                global $DIC;

                $this->usr_id    = $usr_id;
                $this->buddylist = ilBuddyList::getInstanceByGlobalUser();
                
                $this->user = $DIC['ilUser'];
                $this->lng  = $DIC['lng'];
        }

        public static function getInstanceByUserId($usr_id)
        {
                return new self($usr_id);
        }

        public function getUsrId()
        {
                return $this->usr_id;
        }

        public function setUsrId($usr_id)
        {
                $this->usr_id = $usr_id;
        }

        public function getBuddyList()
        {
                return $this->buddylist;
        }

        public function getHtml()
        {
                $this->lng->loadLanguageModule('buddysystem');

                ilBuddySystemGUI::initializeFrontend();

                require_once 'Services/Contact/BuddySystem/classes/class.ilBuddySystem.php';
                if(!ilBuddySystem::getInstance()->isEnabled())
                {
                        return '';
                }

                $relation = $this->buddylist->getRelationByUserId($this->getUsrId());

                // The ILIAS JF decided to add a new personal setting
                if($relation->isUnlinked() && !ilUtil::yn2tf(ilObjUser::_lookupPref($this->getUsrId(), 'bs_allow_to_contact_me')))
                {
                        return '';
                }

                $button_tpl = new ilTemplate('tpl.buddy_system_link_button.html', true, true, 'Services/Contact/BuddySystem');
                $button_tpl->setVariable('BUTTON_HTML', ilBuddySystemRelationStateFactory::getInstance()->getRendererByOwnerAndRelation($this->user->getId(), $relation)->getHtml());
                $button_tpl->setVariable('BUTTON_BUDDY_ID', $this->getUsrId());
                $button_tpl->setVariable('BUTTON_CSS_CLASS', 'ilBuddySystemLinkWidget');
                $button_tpl->setVariable('BUTTON_CURRENT_STATE', get_class($relation->getState()));
                return $button_tpl->get();
        }
}