class.ilTemplate.php

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<?php
/* Copyright (c) 1998-2009 ILIAS open source, Extended GPL, see docs/LICENSE */
 
include_once("./Services/UICore/lib/html-it/IT.php");
include_once("./Services/UICore/lib/html-it/ITX.php");
 
class ilTemplate extends HTML_Template_ITX
{
    public $vars;
    //var $js_files = array(0 => "./Services/JavaScript/js/Basic.js");          // list of JS files that should be included
    public $js_files = array();         // list of JS files that should be included
    public $css_files = array();                // list of css files that should be included
    
    public $activeBlock;
 
    /*function ilTemplate($root)
    {
 
        $this->callConstructor();
 
        $this->setRoot($root);
 
        return true;
    }*/
    public function __construct($file, $flag1, $flag2, $in_module = false, $vars = "DEFAULT")
    {
        $this->activeBlock = "__global__";
        $this->vars = array();
 
        $fname = $this->getTemplatePath($file, $in_module);
 
        $this->tplName = basename($fname);
        $this->tplPath = dirname($fname);
        // set default content-type to text/html
        $this->contenttype = "text/html";
        if (!file_exists($fname)) {
            die("template " . $fname . " was not found.");
            return false;
        }
 
        //$this->IntegratedTemplateExtension(dirname($fname));
        parent::__construct();
        //$this->loadTemplatefile(basename($fname), $flag1, $flag2);
        $this->loadTemplatefile($fname, $flag1, $flag2);
        //add tplPath to replacevars
        $this->vars["TPLPATH"] = $this->tplPath;
        
        // set Options
        if (method_exists($this, "setOption")) {
            $this->setOption('use_preg', false);
        }
 
        return true;
    }
 
    public function getTemplatePath($a_tplname, $a_in_module = false, $a_plugin = false)
    {
        global $ilias, $ilCtrl;
        
        // if baseClass functionality is used (ilias.php):
        // get template directory from ilCtrl
        if (!empty($_GET["baseClass"]) && $a_in_module === true) {
            $a_in_module = $ilCtrl->getModuleDir();
        }
 
        if (strpos($a_tplname, "/") === false) {
            $module_path = "";
            
            //$fname = $ilias->tplPath;
            if ($a_in_module) {
                if ($a_in_module === true) {
                    $module_path = ILIAS_MODULE . "/";
                } else {
                    $module_path = $a_in_module . "/";
                }
            }
 
            if ($fname == "" || !file_exists($fname)) {
                if ($a_in_module == "setup") {
                    $fname = "./" . $module_path . "templates/" . basename($a_tplname);
                } else {
                    $fname = "./" . $module_path . "templates/default/" . basename($a_tplname);
                }
            }
        } else {
            $fname = $a_tplname;
        }
        
        return $fname;
    }
 
    public function addBlockFile($var, $block, $tplname, $in_module = false)
    {
        if (DEBUG) {
            echo "<br/>Template '" . $this->tplPath . "/" . $tplname . "'";
        }
 
        $tplfile = $this->getTemplatePath($tplname, $in_module);
        if (file_exists($tplfile) == false) {
            echo "<br/>Template '" . $tplfile . "' doesn't exist! aborting...";
            return false;
        }
 
        return parent::addBlockFile($var, $block, $tplfile);
    }
 
    public function show($part = "DEFAULT")
    {
        header('Content-type: text/html; charset=UTF-8');
 
        $this->fillJavaScriptFiles();
        $this->fillCssFiles();
        
        // ERROR HANDLER SETS $_GET["message"] IN CASE OF $error_obj->MESSAGE
        $ms = array("info", "success", "failure", "question");
        $out = "";
        
        foreach ($ms as $m) {
            if ($m == "question") {
                $m = "mess_question";
            }
 
            $txt = (ilSession::get($m) != "")
                ? ilSession::get($m)
                : $this->message[$m];
                
            if ($m == "mess_question") {
                $m = "question";
            }
 
            if ($txt != "") {
                $out .= $this->getMessageHTML($txt, $m);
            }
        
            if ($m == "question") {
                $m = "mess_question";
            }
 
            if (ilSession::get($m)) {
                ilSession::clear($m);
            }
        }
        
        if ($this->blockExists("MESSAGE") && $out != "") {
            $this->setVariable("MESSAGE", $out);
        }
 
        if ($part == "DEFAULT") {
            parent::show();
        } else {
            parent::show($part);
        }
 
        if (((substr(strrchr($_SERVER["PHP_SELF"], "/"), 1) != "error.php")
            && (substr(strrchr($_SERVER["PHP_SELF"], "/"), 1) != "adm_menu.php"))) {
            ilSession::set("post_vars", $_POST);
 
            // referer is modified if query string contains cmd=gateway and $_POST is not empty.
            // this is a workaround to display formular again in case of error and if the referer points to another page
            $url_parts = parse_url($_SERVER["REQUEST_URI"]);
            if (!$url_parts) {
                $protocol = (isset($_SERVER['HTTPS']) ? 'https' : 'http') . '://';
                $host = $_SERVER['HTTP_HOST'];
                $path = $_SERVER['REQUEST_URI'];
                $url_parts = @parse_url($protocol . $host . $path);
            }
 
            if (preg_match("/cmd=gateway/", $url_parts["query"])) {
                foreach ($_POST as $key => $val) {
                    if (is_array($val)) {
                        $val = key($val);
                    }
 
                    $str .= "&" . $key . "=" . $val;
                }
 
                ilSession::set(
                    "referer",
                    preg_replace("/cmd=gateway/", substr($str, 1), $_SERVER["REQUEST_URI"])
                );
                ilSession::set(
                    "referer_ref_id",
                    (int) $_GET['ref_id']
                );
            } else {
                ilSession::set("referer", $_SERVER["REQUEST_URI"]);
                ilSession::set(
                    "referer_ref_id",
                    (int) $_GET['ref_id']
                );
            }
 
            ilSession::clear("error_post_vars");
        }
    }
 
    public function getMessageHTML($a_txt, $a_type = "info")
    {
        global $lng;
        
        $mtpl = new ilTemplate("tpl.message.html", true, true, "Services/Utilities");
        $mtpl->setCurrentBlock($a_type . "_message");
        $mtpl->setVariable("TEXT", $a_txt);
        $mtpl->setVariable("MESSAGE_HEADING", $lng->txt($a_type . "_message"));
        $mtpl->parseCurrentBlock();
        
        return $mtpl->get();
    }
 
    public function setCurrentBlock($part = "DEFAULT")
    {
        $this->activeBlock = $part;
 
        if ($part == "DEFAULT") {
            return parent::setCurrentBlock();
        } else {
            return parent::setCurrentBlock($part);
        }
    }
 
    public function touchBlock($block)
    {
        $this->setCurrentBlock($block);
        //$count = $this->fillVars();
        $this->parseCurrentBlock();
 
        if ($count == 0) {
            parent::touchBlock($block);
        }
    }
 
    public function parseCurrentBlock($part = "DEFAULT")
    {
        // Hier erst noch ein replace aufrufen
        if ($part != "DEFAULT") {
            $tmp = $this->activeBlock;
            $this->activeBlock = $part;
        }
 
        if ($part != "DEFAULT") {
            $this->activeBlock = $tmp;
        }
 
        //$this->fillVars();
 
        $this->activeBlock = "__global__";
 
        if ($part == "DEFAULT") {
            return parent::parseCurrentBlock();
        } else {
            return parent::parseCurrentBlock($part);
        }
    }
    public function setMessage($a_type, $a_txt, $a_keep = false)
    {
        if (!in_array($a_type, array("info", "success", "failure", "question")) || $a_txt == "") {
            return;
        }
        if ($a_type == "question") {
            $a_type = "mess_question";
        }
        if (!$a_keep) {
            $this->message[$a_type] = $a_txt;
        } else {
            ilSession::set($a_type, $a_txt);
        }
    }
    
    public function fillMessage()
    {
        global $lng;
        
        $ms = array("info", "success", "failure", "question");
        $out = "";
        
        foreach ($ms as $m) {
            if ($m == "question") {
                $m = "mess_question";
            }
 
            $txt = (ilSession::get($m) != "")
                ? ilSession::get($m)
                : $this->message[$m];
                
            if ($m == "mess_question") {
                $m = "question";
            }
 
            if ($txt != "") {
                $mtpl = new ilTemplate("tpl.message.html", true, true, "Services/Utilities");
                $mtpl->setCurrentBlock($m . "_message");
                $mtpl->setVariable("TEXT", $txt);
                $mtpl->setVariable("MESSAGE_HEADING", $lng->txt($m . "_message"));
                $mtpl->parseCurrentBlock();
                $out .= $mtpl->get();
            }
        
            if ($m == "question") {
                $m = "mess_question";
            }
 
            if (ilSession::get($m)) {
                ilSession::clear($m);
            }
        }
        
        if ($out != "") {
            $this->setVariable("MESSAGE", $out);
        }
    }
 
    public function blockExists($a_blockname)
    {
        // added second evaluation to the return statement because the first one only works for the content block (Helmut Schottmüller, 2007-09-14)
        return (isset($this->blockvariables["content"][$a_blockname]) ? true : false) | (isset($this->blockvariables[$a_blockname]) ? true : false);
    }
    
    public function addJavaScript($a_js_file)
    {
        if (!in_array($a_js_file, $this->js_files)) {
            $this->js_files[] = $a_js_file;
        }
    }
 
    public function fillJavaScriptFiles()
    {
        global $ilias,$ilTabs;
        if ($this->blockExists("js_file")) {
            foreach ($this->js_files as $file) {
                if (is_file($file) || substr($file, 0, 4) == "http") {
                    $this->setCurrentBlock("js_file");
                    $this->setVariable("JS_FILE", $file);
                    $this->parseCurrentBlock();
                }
            }
        }
    }
 
    public function addCss($a_css_file, $media = "screen")
    {
        if (!array_key_exists($a_css_file . $media, $this->css_files)) {
            $this->css_files[$a_css_file . $media] = array("file" => $a_css_file, "media" => $media);
        }
    }
 
    public function fillCssFiles($a_force = false)
    {
        if (!$this->blockExists("css_file")) {
            return;
        }
        foreach ($this->css_files as $css) {
            $filename = $css["file"];
            if (strpos($filename, "?") > 0) {
                $filename = substr($filename, 0, strpos($filename, "?"));
            }
            if (is_file($filename) || $a_force) {
                $this->setCurrentBlock("css_file");
                $this->setVariable("CSS_FILE", $css["file"]);
                $this->setVariable("CSS_MEDIA", $css["media"]);
                $this->parseCurrentBlock();
            }
        }
    }
 
 
    public function get($part = "DEFAULT")
    {
        if ($part == "DEFAULT") {
            return parent::get();
        } else {
            return parent::get($part);
        }
    }
}