egroupware/etemplate/inc/class.etemplate_widget_template.inc.php

251 lines
7.6 KiB
PHP

<?php
/**
* EGroupware - eTemplate serverside template widget
*
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @package etemplate
* @subpackage api
* @link http://www.egroupware.org
* @author Ralf Becker <RalfBecker@outdoor-training.de>
* @copyright 2002-11 by RalfBecker@outdoor-training.de
* @version $Id$
*/
// allow to call direct for tests (see end of class)
if (!isset($GLOBALS['egw_info']))
{
$GLOBALS['egw_info'] = array(
'flags' => array(
'currentapp' => 'login',
'debug' => 'etemplate_widget_template',
)
);
include_once '../../header.inc.php';
}
/**
* eTemplate widget baseclass
*/
class etemplate_widget_template extends etemplate_widget
{
/**
* Cache of already read templates
*
* @var array with name => template pairs
*/
protected static $cache = array();
/**
* Get instance of template specified by name, template(-set) and version
*
* @param string $_name
* @param string $template_set =null default try template-set from user and if not found "default"
* @param string $version =''
* @param string $load_via ='' use given template to load $name
* @todo Reading customized templates from database
* @return etemplate_widget_template|boolean false if not found
*/
public static function instance($_name, $template_set=null, $version='', $load_via='')
{
//$start = microtime(true);
list($name) = explode('?', $_name); // remove optional cache-buster
if (isset(self::$cache[$name]) || !($path = self::relPath($name, $template_set, $version)))
{
if ((!$path || self::read($load_via, $template_set)) && isset(self::$cache[$name]))
{
//error_log(__METHOD__."('$name', '$template_set', '$version', '$load_via') read from cache");
return self::$cache[$name];
}
// Template not found, try again as if $name were a partial name
else if(!$path && strpos($name,'.') === false)
{
foreach(self::$cache as $c_name => $c_template)
{
list(,, $c_sub) = explode('.',$c_name, 3);
if($name == $c_sub)
{
//error_log(__METHOD__ . "('$name' loaded from cache ($c_name)");
return $c_template;
}
$parts = explode('.',$c_name);
if($name == $parts[count($parts)-1]) return $c_template;
}
}
// Template not found, try again with content expansion
if (is_array(self::$request->content))
{
$expand_name = self::expand_name($name, '','','','',self::$cont);
if($expand_name && $expand_name != $name)
{
$template = self::instance($expand_name, $template_set, $version, $load_via);
// Remember original, un-expanded name in case content changes while still cached
$template->original_name = $name;
return $template;
}
}
error_log(__METHOD__."('$name', '$template_set', '$version', '$load_via') template NOT found!");
return false;
}
$reader = new XMLReader();
if (!$reader->open(self::rel2path($path))) return false;
while($reader->read())
{
if ($reader->nodeType == XMLReader::ELEMENT && $reader->name == 'template')
{
$template = new etemplate_widget_template($reader);
//echo $template->id; _debug_array($template);
self::$cache[$template->id] = $template;
if ($template->id == $name)
{
//error_log(__METHOD__."('$name', '$template_set', '$version', '$load_via') read in ".round(1000.0*(microtime(true)-$start),2)." ms");
return $template;
}
}
}
// template not found in file, should never happen
error_log(__METHOD__."('$name', '$template_set', '$version', '$load_via') template NOT found in file '$path'!");
return false;
}
const VFS_TEMPLATE_PATH = '/etemplates';
/**
* Get path/URL relative to EGroupware install of a template of full vfs url
*
* @param string $name
* @param string $template_set =null default try template-set from user and if not found "default"
* @param string $version =''
* @return string path of template xml file or null if not found
*/
public static function relPath($name, $template_set=null, $version='')
{
unset($version); // not used currently
list($app, $rest) = explode('.', $name, 2);
if (empty($template_set))
{
$template_set = $GLOBALS['egw_info']['user']['preferences']['common']['template_set'];
}
$template_path = '/'.$app.'/templates/'.$template_set.'/'.$rest.'.xet';
$default_path = '/'.$app.'/templates/default/'.$rest.'.xet';
foreach(array(egw_vfs::PREFIX.self::VFS_TEMPLATE_PATH, EGW_SERVER_ROOT) as $prefix)
{
if (file_exists($prefix.$template_path))
{
$path = $template_path;
break;
}
if (file_exists($prefix.$default_path))
{
$path = $default_path;
break;
}
}
// for a vfs template path we keep the prefix, to be able to distinquish between real filesystem and vfs
if (isset($path) && $prefix !== EGW_SERVER_ROOT)
{
$path = $prefix.$path;
}
//error_log(__METHOD__."('$name', '$template_set') returning ".array2string($path));
return $path;
}
/**
* Convert relative template path from relPath to an absolute path
*
* @param string $path
* @return string
*/
public static function rel2path($path)
{
if ($path[0] === '/')
{
$path = EGW_SERVER_ROOT.$path;
}
return $path;
}
/**
* Convert relative template path from relPath to an url incl. cache-buster modification time postfix
*
* @param string $path
* @return string url
*/
public static function rel2url($path)
{
if ($path)
{
if ($path[0] === '/')
{
$url = $GLOBALS['egw_info']['server']['webserver_url'].$path.'?'.filemtime(self::rel2path($path));
}
else
{
$url = egw_vfs::download_url($path);
if ($url[0] == '/') $url = egw::link($url);
// mtime postfix has to use '?download=', as our WebDAV treats everything else literal and not ignore them like Apache for static files!
$url .= '?download='.filemtime(egw_vfs::PREFIX.$path);
}
}
//error_log(__METHOD__."('$path') returning $url");
return $url;
}
/**
* Run method on all children
*
* Reimplemented because templates can have an own namespace specified in attrs[content], NOT id!
*
* @param string $method_name
* @param array $params =array('') parameter(s) first parameter has to be cname, second $expand!
* @param boolean $respect_disabled =false false (default): ignore disabled, true: method is NOT run for disabled widgets AND their children
*/
public function run($method_name, $params=array(''), $respect_disabled=false)
{
$cname =& $params[0];
$old_cname = $params[0];
if ($this->attrs['content']) $cname = self::form_name($cname, $this->attrs['content'], $params[1]);
// Check for template from content, and run over it
$expand_name = self::expand_name($this->id, '','','','',self::$request->content);
if($this->original_name)
{
$expand_name = self::expand_name($this->original_name, '','','','',self::$request->content);
}
//error_log("$this running $method_name() cname: {$this->id} -> expand_name: $expand_name");
if($expand_name && $expand_name != $this->id)
{
$row_template = etemplate_widget_template::instance($expand_name);
$row_template->run($method_name, $params, $respect_disabled);
}
else
{
parent::run($method_name, $params, $respect_disabled);
}
$params[0] = $old_cname;
}
}
/*
if ($GLOBALS['egw_info']['flags']['debug'] == 'etemplate_widget_template')
{
$name = isset($_GET['name']) ? $_GET['name'] : 'timesheet.edit';
if (!($template = etemplate_widget_template::instance($name)))
{
header('HTTP-Status: 404 Not Found');
echo "<html><head><title>Not Found</title><body><h1>Not Found</h1><p>The requested eTemplate '$name' was not found!</p></body></html>\n";
exit;
}
header('Content-Type: text/xml');
echo $template->toXml();
}
*/