class.ilOverlayGUI.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */

class ilOverlayGUI
{
    protected $tpl;

    protected $width = "";
    protected $height = "";
    protected $fixed_center = false;
    protected $visible = false;
    protected $anchor_el_id = "";
    protected $anchor_ov_corner = "";
    protected $anchor_anch_corner = "";
    protected $auto_hide = false;
    protected $close_el = null;
    
    public function __construct($a_overlay_el_id)
    {
        global $DIC;

        // please check learning modules (e.g. rating) before removing this globals
        // use (they do not use standard template)
        $this->tpl = $GLOBALS["tpl"];
        $this->overlay_el_id = $a_overlay_el_id;
    }

    public function setAnchor($a_anchor_el_id, $a_ov_corner = "tl", $a_anch_corner = "bl")
    {
        $this->anchor_el_id = $a_anchor_el_id;
        $this->anchor_ov_corner = $a_ov_corner;
        $this->anchor_anch_corner = $a_anch_corner;
    }

    public function setSize($a_width = "", $a_height = "")
    {
        $this->width = $a_width;
        $this->height = $a_height;
    }
    
    public function setFixedCenter($a_fixed_center = true)
    {
        $this->fixed_center = $a_fixed_center;
    }

    public function setVisible($a_visible = true)
    {
        $this->visible = $a_visible;
    }
    
    public function setTrigger($a_el_id, $a_event = "click", $a_trigger_anchor_el_id = null)
    {
        $this->trigger_el_id = $a_el_id;
        $this->trigger_event = $a_event;
        $this->trigger_anchor_el_id = $a_trigger_anchor_el_id;
    }
    
    public function setAutoHide($a_val)
    {
        $this->auto_hide = $a_val;
    }
    
    public function getAutoHide()
    {
        return $this->auto_hide;
    }
    
    public function setCloseElementId($a_val)
    {
        $this->close_el = $a_val;
    }
    
    public function getCloseElementId()
    {
        return $this->close_el;
    }
    
    public function getOnLoadCode()
    {
        // yui cfg string
        $yuicfg["visible"] = $this->visible ? true : false;
        
        if ($this->width != "") {
            $yuicfg["width"] = $this->width;
        }
        
        if ($this->height != "") {
            $yuicfg["height"] = $this->height;
        }
        $yuicfg["fixedcenter"] = $this->fixed_center ? true : false;
        if ($this->anchor_el_id != "") {
            $yuicfg["context"] = array($this->anchor_el_id, $this->anchor_ov_corner,
                    $this->anchor_anch_corner, array("beforeShow", "windowResize"));
        }
        // general cfg string
        $cfg["yuicfg"] = $yuicfg;
        $cfg["trigger"] = $this->trigger_el_id;
        $cfg["trigger_event"] = $this->trigger_event;
        $cfg["anchor_id"] = $this->trigger_anchor_el_id;
        $cfg["auto_hide"] = $this->auto_hide;
        $cfg["close_el"] = $this->close_el;

        include_once("./Services/JSON/classes/class.ilJsonUtil.php");
        //var_dump(ilJsonUtil::encode($cfg));
        return 'il.Overlay.add("' . $this->overlay_el_id . '", ' .
            ilJsonUtil::encode($cfg) . '); ';
    }
    
    public function add()
    {
        $tpl = $this->tpl;
        include_once("./Services/YUI/classes/class.ilYuiUtil.php");
        
        self::initJavascript();
        $tpl->addOnLoadCode($this->getOnLoadCode());
    }
    
    public static function initJavascript()
    {
        global $DIC;

        $tpl = $GLOBALS["tpl"];
        
        include_once("./Services/YUI/classes/class.ilYuiUtil.php");
        ilYuiUtil::initOverlay($tpl);
        $tpl->addJavascript("./Services/UIComponent/Overlay/js/ilOverlay.js");
    }
    
    
    public function getTriggerOnLoadCode(
        $a_tr_id,
        $a_tr_event,
        $a_anchor_el_id,
        $a_center = false,
        $a_ov_corner = "tl",
        $a_anch_corner = "bl"
    ) {
        $center = ($a_center) ? "true" : "false";
        return 'il.Overlay.addTrigger("' . $a_tr_id . '","' . $a_tr_event . '","' . $this->overlay_el_id . '","' .
            $a_anchor_el_id . '", ' . $center . ',"' . $a_ov_corner . '","' . $a_anch_corner . '"); ';
    }
    
    public function addTrigger(
        $a_tr_id,
        $a_tr_event,
        $a_anchor_el_id,
        $a_center = false,
        $a_ov_corner = "tl",
        $a_anch_corner = "bl"
    ) {
        $tpl = $this->tpl;
        include_once("./Services/YUI/classes/class.ilYuiUtil.php");
        //echo "-".$a_tr_id."-".$a_tr_event."-".$a_anchor_el_id."-";
        self::initJavascript();
        $tpl->addOnLoadCode($this->getTriggerOnLoadCode(
            $a_tr_id,
            $a_tr_event,
            $a_anchor_el_id,
            $a_center,
            $a_ov_corner,
            $a_anch_corner
        ));
    }
}