class.ilLinkButton.php

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<?php
/* Copyright (c) 1998-2012 ILIAS open source, Extended GPL, see docs/LICENSE */

require_once "Services/UIComponent/Button/classes/class.ilButtonBase.php";

class ilLinkButton extends ilButtonBase
{
        protected $url; // [string]
        protected $target; // [string]
        
        public static function getInstance()
        {
                return new self(self::TYPE_LINK);
        }
        
        
        //
        // properties
        //
        
        public function setUrl($a_value)
        {
                $this->url = trim($a_value);
        }
        
        public function getUrl()
        {
                return $this->url;
        }
        
        public function setTarget($a_value)
        {
                $this->target = trim($a_value);
        }
        
        public function getTarget()
        {
                return $this->target;
        }
        
        
        //
        // render
        //
        
        protected function renderCaption()
        {
                return '&nbsp;'.$this->getCaption().'&nbsp;';
        }

        protected function renderAttributes(array $a_additional_attr = null)
        {
                if ('_blank' === $this->getTarget()) {
                        if (isset($a_additional_attr['rel'])) {
                                if (strpos($a_additional_attr['rel'], 'noopener') === false) {
                                        $a_additional_attr['rel'] .= ' noopener';
                                }
                        } else {
                                $a_additional_attr['rel'] = 'noopener';
                        }
                }

                return parent::renderAttributes($a_additional_attr);
        }

        public function render()
        {                               
                $this->prepareRender();
                
                $attr = array();
                $attr["href"] = $this->getUrl() ? $this->getUrl() : "#";
                $attr["target"] = $this->getTarget();
                
                return '<a'.$this->renderAttributes($attr).'>'.
                        $this->renderCaption().'</a>';
        }               
}