class.ilStyleDefinition.php

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<?php
/*
        +-----------------------------------------------------------------------------+
        | ILIAS open source                                                           |
        +-----------------------------------------------------------------------------+
        | Copyright (c) 1998-2001 ILIAS open source, University of Cologne            |
        |                                                                             |
        | This program is free software; you can redistribute it and/or               |
        | modify it under the terms of the GNU General Public License                 |
        | as published by the Free Software Foundation; either version 2              |
        | of the License, or (at your option) any later version.                      |
        |                                                                             |
        | This program is distributed in the hope that it will be useful,             |
        | but WITHOUT ANY WARRANTY; without even the implied warranty of              |
        | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
        | GNU General Public License for more details.                                |
        |                                                                             |
        | You should have received a copy of the GNU General Public License           |
        | along with this program; if not, write to the Free Software                 |
        | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
        +-----------------------------------------------------------------------------+
*/


require_once("./classes/class.ilSaxParser.php");

class ilStyleDefinition extends ilSaxParser
{
        static $current_skin;
        
        
        static $current_style;


        function ilStyleDefinition($a_template_id = "")
        {
                global $ilias;

                if ($a_template_id == "")
                {
                        // use function to get the current skin
                        $a_template_id = self::getCurrentSkin();
                }

                // remember the template id
                $this->template_id = $a_template_id;

                if ($a_template_id == "default")
                {
                        parent::ilSaxParser("./templates/".$a_template_id."/template.xml");
                }
                else
                {
                        parent::ilSaxParser("./Customizing/global/skin/".$a_template_id."/template.xml");
                }
        }


        // PUBLIC METHODS

        function getStyles()
        {
//echo ":".count($this->styles).":";
                if (is_array($this->styles))
                {
                        return $this->styles;
                }
                else
                {
                        return array();
                }
        }

        function getTemplateId()
        {
                return $this->template_id;
        }

        
        function getTemplateName()
        {
                return $this->template_name;
        }


        function getStyle($a_id)
        {
                return $this->styles[$a_id];
        }


        function getStyleName($a_id)
        {
                return $this->styles[$a_id]["name"];
        }


        function getImageDirectory($a_id)
        {
                return $this->styles[$a_id]["image_directory"];
        }

        function getSoundDirectory($a_id)
        {
                return $this->styles[$a_id]["sound_directory"];
        }
        
        public static function _getAllTemplates()
        {
                $skins = array();

                $skins[] = array("id" => "default");
                if ($dp = @opendir("./Customizing/global/skin"))
                {
                        while (($file = readdir($dp)) != false)
                        {
                                //is the file a directory?
                                if (is_dir("./Customizing/global/skin/".$file) && $file != "." && $file != ".." && $file != "CVS"
                                        && $file != ".svn")
                                {
                                        if (is_file("./Customizing/global/skin/".$file."/template.xml"))
                                        {
                                                $skins[] = array(
                                                        "id" => $file
                                                );
                                        }
                                }
                        } // while
                }
                else
                {
                        return $skins;
                }

                return $skins;
                
        }

        function getAllTemplates()
        {
                return self::_getAllTemplates();
        }
        

        // PRIVATE METHODS

        function setHandlers($a_xml_parser)
        {
                xml_set_object($a_xml_parser,$this);
                xml_set_element_handler($a_xml_parser, 'handlerBeginTag', 'handlerEndTag');
                xml_set_character_data_handler($a_xml_parser, 'handlerCharacterData');
        }

        function handlerBeginTag($a_xml_parser, $a_name, $a_attribs)
        {
                if (!isset($a_attribs["sound_directory"]))
                {
                        $a_attribs["sound_directory"] = "";
                }
                
                if (!isset($a_attribs["browsers"]))
                {
                        $a_attribs["browsers"] = "";
                }
                
                switch($a_name)
                {
                        case "template" :
                                $this->template_name = $a_attribs["name"];
                                break;

                        case "style" :
                                $this->styles[$a_attribs["id"]] =
                                        array(  "id" => $a_attribs["id"],
                                                        "name" => $a_attribs["name"],
                                                        "css_file" => $a_attribs["id"].".css",
                                                        "image_directory" => $a_attribs["image_directory"],
                                                        "sound_directory" => $a_attribs["sound_directory"]
                                        );
                                $browsers =
                                        explode(",", $a_attribs["browsers"]);
                                foreach ($browsers as $val)
                                {
                                        $this->styles[$a_attribs["id"]]["browsers"][] = trim($val);
                                }
                                break;
                }
        }
        
        
        static function styleExists($skin, $style)
        {
                if ($skin == "default")
                {               
                        if (is_file("./templates/".$skin."/template.xml") &&
                                is_file("./templates/".$skin."/".$style.".css")
                                )
                        {
                                return true;
                        }
                }
                else
                {
                        if (is_file("./Customizing/global/skin/".$skin."/template.xml") &&
                                is_file("./Customizing/global/skin/".$skin."/".$style.".css")
                                )
                        {
                                return true;
                        }
                }
                return false;
        }

        static function skinExists($skin)
        {
                if ($skin == "default")
                {               
                        if (is_file("./templates/".$skin."/template.xml"))
                        {
                                return true;
                        }
                }
                else
                {
                        if (is_file("./Customizing/global/skin/".$skin."/template.xml"))
                        {
                                return true;
                        }
                }
                return false;
        }

        function handlerCharacterData($a_xml_parser,$a_data)
        {
                // DELETE WHITESPACES AND NEWLINES OF CHARACTER DATA
                $a_data = preg_replace("/\n/","",$a_data);
                $a_data = preg_replace("/\t+/","",$a_data);

                if(!empty($a_data))
                {
                        switch($this->current_tag)
                        {
                                default:
                                        break;
                        }
                }
        }

        function handlerEndTag($a_xml_parser,$a_name)
        {
        }
                
        
        public static function getCurrentSkin()
        {
                global $ilias;

                return isset(self::$current_skin) ? self::$current_skin :
                                                                                        $ilias->account->skin;
        }
        
        public static function getCurrentStyle()
        {
                global $ilias;  
                
                return isset(self::$current_style) ? self::$current_style :     
                                                                                        $ilias->account->prefs['style'];
        }
        
        public static function setCurrentSkin($a_skin)
        {
                global $styleDefinition;
                
                if (is_object($styleDefinition)
                and $styleDefinition->getTemplateId() != $a_skin)
                {
                        $styleDefinition = new ilStyleDefinition($a_skin);
                        $styleDefinition->startParsing();
                }
                
                self::$current_skin = $a_skin;
        }
        
        
        public static function setCurrentStyle($a_style)
        {
                self::$current_style = $a_style;
        }
}
?>