class.ilSkillSelectorGUI.php

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<?php
/* Copyright (c) 1998-2013 ILIAS open source, Extended GPL, see docs/LICENSE */

include_once("./Services/Skill/classes/class.ilVirtualSkillTreeExplorerGUI.php");

class ilSkillSelectorGUI extends ilVirtualSkillTreeExplorerGUI
{
    protected $ctrl;

    public function __construct($a_parent_obj, $a_parent_cmd, $a_select_gui, $a_select_cmd, $a_select_par = "selected_skill")
    {
        global $DIC;

        $this->ctrl = $DIC->ctrl();
        parent::__construct("skill_sel", $a_parent_obj, $a_parent_cmd);
        $this->select_gui = (is_object($a_select_gui))
            ? strtolower(get_class($a_select_gui))
            : $a_select_gui;
        $this->select_cmd = $a_select_cmd;
        $this->select_par = $a_select_par;
        $this->setSkipRootNode(true);
    }

    public function setSkillSelected($a_id)
    {
        $this->setNodeSelected($this->vtree->getCSkillIdForVTreeId($a_id));
    }

    public function getSelectedSkills()
    {
        $skills = array();
        $pa = $_POST[$this->select_postvar];
        if (is_array($pa)) {
            foreach ($pa as $p) {
                $skills[] = $this->vtree->getCSkillIdForVTreeId($p);
            }
        }
        return $skills;
    }
    
    public function getNodeHref($a_node)
    {
        $ilCtrl = $this->ctrl;
        
        // we have a tree id like <skl_tree_id>:<skl_template_tree_id>
        // and make a "common" skill id in format <skill_id>:<tref_id>
        
        $id_parts = explode(":", $a_node["id"]);
        if ($id_parts[1] == 0) {
            // skill in main tree
            $skill_id = $a_node["id"];
        } else {
            // skill in template
            $skill_id = $id_parts[1] . ":" . $id_parts[0];
        }
        
        $ilCtrl->setParameterByClass($this->select_gui, $this->select_par, $skill_id);
        $ret = $ilCtrl->getLinkTargetByClass($this->select_gui, $this->select_cmd);
        $ilCtrl->setParameterByClass($this->select_gui, $this->select_par, "");
        
        return $ret;
    }

    public function isNodeClickable($a_node)
    {
        return $this->nodeHasAction($a_node);
    }
    
    protected function isNodeSelectable($a_node)
    {
        return $this->nodeHasAction($a_node);
    }
    
    private function nodeHasAction($a_node)
    {
        if (in_array($a_node["type"], array("skll", "sktp"))) {
            return true;
        }
        // references that refer directly to a (basic) skill template
        if ($a_node["type"] == "sktr" && ilSkillTreeNode::_lookupType($a_node["skill_id"]) == "sktp") {
            return true;
        }

        return false;
    }
}