class.ilUIHookProcessor.php

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<?php
 
/* Copyright (c) 1998-2011 ILIAS open source, Extended GPL, see docs/LICENSE */
 
class ilUIHookProcessor
{
        var $append = array();
        var $prepend = array();
        var $replace = "";
        
        function __construct($a_comp, $a_part, $a_pars)
        {
                global $ilPluginAdmin;
                
                include_once("./Services/UIComponent/classes/class.ilUIHookPluginGUI.php");
                
                // user interface hook [uihk]
                $pl_names = $ilPluginAdmin->getActivePluginsForSlot(IL_COMP_SERVICE, "UIComponent", "uihk");
                $this->replaced = false;
                foreach ($pl_names as $pl)
                {
                        $ui_plugin = ilPluginAdmin::getPluginObject(IL_COMP_SERVICE, "UIComponent", "uihk", $pl);
                        $gui_class = $ui_plugin->getUIClassInstance();
                        $resp = $gui_class->getHTML($a_comp, $a_part, $a_pars);
 
                        if ($resp["mode"] != ilUIHookPluginGUI::KEEP)
                        {
                                switch($resp["mode"])
                                {
                                        case ilUIHookPluginGUI::PREPEND:
                                                $this->prepend[] = $resp["html"];
                                                break;
                                                
                                        case ilUIHookPluginGUI::APPEND:
                                                $this->append[] = $resp["html"];
                                                break;
                                                
                                        case ilUIHookPluginGUI::REPLACE:
                                                if (!$this->replaced)
                                                {
                                                        $this->replace = $resp["html"];
                                                        $this->replaced = true;
                                                }
                                                break;
                                }
                        }
                }
        }
 
        function replaced()
        {
                return $this->replaced;
        }
        
        function getHTML($html)
        {
                if ($this->replaced)
                {
                        $html = $this->replace;
                }
                foreach ($this->append as $a)
                {
                        $html.= $a;
                }
                foreach ($this->prepend as $p)
                {
                        $html = $p.$html;
                }
                return $html;
        }
        
}
 
?>