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https://github.com/EGroupware/egroupware.git
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read and parse widgets on serverside
This commit is contained in:
Ralf Becker
parent
5e54d6b12b
commit
d095250d85
112
etemplate/inc/class.etemplate_template_widget.inc.php
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112
etemplate/inc/class.etemplate_template_widget.inc.php
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<?php
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/**
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* EGroupware - eTemplate serverside template widget
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*
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package etemplate
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* @subpackage api
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* @link http://www.egroupware.org
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* @author Ralf Becker <RalfBecker@outdoor-training.de>
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* @copyright 2002-11 by RalfBecker@outdoor-training.de
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* @version $Id$
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*/
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/* testwise to have autoloading
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if (!isset($GLOBALS['egw_info']))
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{
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$GLOBALS['egw_info'] = array(
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'flags' => array(
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'currentapp' => 'login',
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),
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);
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include_once '../../header.inc.php';
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}
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*/
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/**
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* eTemplate widget baseclass
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*/
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class etemplate_template_widget extends etemplate_widget
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{
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/**
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* Cache of already read templates
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*
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* @var array with name => template pairs
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*/
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protected static $cache = array();
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/**
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* Read a templates specified by name, template(-set) and version
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*
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* @param string $name
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* @param string $template_set='default'
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* @param string $version=''
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* @param string $load_via='' use given template to load $name
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* @todo Reading customized templates from database
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* @return etemplate_template_widget|boolean false if not found
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*/
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public static function read($name, $template_set='default', $version='', $load_via='')
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{
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$start = microtime(true);
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if (isset(self::$cache[$name]) || !($path = self::relPath($name, $template_set, $version)))
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{
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if ((!$path || self::read($load_via, $template_set)) && isset(self::$cache[$name]))
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{
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error_log(__METHOD__."('$name', '$template_set', '$version', '$load_via') read from cache");
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return self::$cache[$name];
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}
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error_log(__METHOD__."('$name', '$template_set', '$version', '$load_via') template NOT found!");
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return false;
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}
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$reader = new XMLReader();
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if (!$reader->open(EGW_SERVER_ROOT.$path)) return false;
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while($reader->read())
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{
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if ($reader->nodeType == XMLReader::ELEMENT && $reader->name == 'template')
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{
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$template = new etemplate_template_widget($reader);
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//echo $template->id; _debug_array($template);
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self::$cache[$template->id] = $template;
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if ($template->id == $name)
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{
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error_log(__METHOD__."('$name', '$template_set', '$version', '$load_via') read in ".round(1000.0*(microtime(true)-$start),2)." ms");
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return $template;
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}
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}
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}
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// template not found in file, should never happen
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error_log(__METHOD__."('$name', '$template_set', '$version', '$load_via') template NOT found in file '$path'!");
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return false;
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}
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/**
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* Get path/URL relative to EGroupware install of a template
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*
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* @param string $name
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* @param string $template_set='default'
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* @param string $version=''
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* @return string|boolean path of template xml file or false if not found
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*/
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public static function relPath($name, $template_set='default', $version='')
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{
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list($app, $rest) = explode('.', $name, 2);
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$path = '/'.$app.'/templates/'.$template_set.'/'.$rest.'.xet';
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if (file_exists(EGW_SERVER_ROOT.$path)) return $path;
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if ($templateSet != 'default')
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{
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$path = '/'.$app.'/templates/default/'.$rest.'.xet';
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if (file_exists(EGW_SERVER_ROOT.$path)) return $path;
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}
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return false;
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}
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}
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/*
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header('Content-Type: text/xml');
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$template = etemplate_template_widget::read('timesheet.edit');
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$template->toXml();
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*/
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196
etemplate/inc/class.etemplate_widget.inc.php
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196
etemplate/inc/class.etemplate_widget.inc.php
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<?php
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/**
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* EGroupware - eTemplate widget baseclass
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*
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* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
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* @package etemplate
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* @subpackage api
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* @link http://www.egroupware.org
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* @author Ralf Becker <RalfBecker@outdoor-training.de>
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* @copyright 2002-11 by RalfBecker@outdoor-training.de
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* @version $Id$
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*/
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/**
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* eTemplate widget baseclass
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*/
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class etemplate_widget
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{
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/**
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* Widget type
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*
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* @var string
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*/
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public $type;
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/**
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* Widget id
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*
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* @var string
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*/
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public $id;
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/**
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* Widget attributes
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*
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* @var array
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*/
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public $attrs = array();
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/**
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* Children
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*
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* @var array
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*/
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protected $children = array();
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/**
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* Constructor
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*
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* @param string|XMLReader $xml string with xml or XMLReader positioned on the element to construct
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* @throws egw_exception_wrong_parameter
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*/
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public function __construct($xml)
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{
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if (is_a($xml, 'XMLReader'))
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{
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$reader = $xml;
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}
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else
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{
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$reader = new XMLReader();
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if (!$reader->XML($xml))
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{
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throw new egw_exception_wrong_parameter("Can't parse xml:\n$xml");
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}
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}
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$this->type = $reader->name;
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$depth = $reader->depth;
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// read all attributes
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while($reader->moveToNextAttribute())
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{
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if ($reader->name == 'id')
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{
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$this->id = $reader->value;
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}
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else
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{
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$this->attrs[$reader->name] = $reader->value;
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}
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}
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while($reader->read() && $reader->depth > $depth)
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{
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if ($reader->nodeType == XMLReader::ELEMENT && $reader->depth > $depth)
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{
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$this->children[] = self::factory($reader->name, $reader, $reader->getAttribute('id'));
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}
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}
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}
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/**
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* Factory method to construct all widgets
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*
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* @param string $type
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* @param string|XMLReader $xml
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* @param string $id=null
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*/
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public static function factory($type, $xml, $id=null)
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{
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static $type2class_name = array();
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$class_name =& $type2class_name[$type];
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if (!isset($class_name))
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{
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list($basetype) = explode('-',$type);
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if (!class_exists($class_name = 'etemplate_'.str_replace('-','_',$type).'_widget') &&
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!class_exists($class_name = 'etemplate_'.str_replace('-','_',$basetype).'_widget'))
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{
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// default to widget class, we can not ignore it, as the widget may contain other widgets
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$class_name = 'etemplate_widget';
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}
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}
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// currently only overlays can contain templates, other widgets can only reference to templates via id
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if ($type == 'template' && $id && ($template = etemplate_template_widget::read($id)))
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{
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return $template;
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}
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return new $class_name($xml);
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}
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/**
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* Iterate over children to find the one with the given id and optional type
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*
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* @param string $id
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* @param string $type=null
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* @return etemplate_widget or NULL
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*/
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public function getElementById($id, $type=null)
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{
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foreach($this->children as $child)
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{
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if ($child->id === $id && (is_null($type) || $child->type === $type))
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{
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return $child;
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}
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if (($element = $child->getElementById($id, $type)))
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{
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return $element;
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}
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}
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return null;
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}
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/**
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* Validate input of a widget
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*
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* @param array $content
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* @param string $cname='' current namespace
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* @return mixed
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*/
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public function validate(array $content, $cname = '')
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{
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}
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/**
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* Convert object to string
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*
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* @return string
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*/
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public function __toString()
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{
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return $this->type.'#'.$this->id;
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}
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/**
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* Convert widget (incl. children) to xml
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*
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* @param string $indent=''
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* @return string
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*/
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public function toXml($indent='')
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{
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echo "$indent<$this->type";
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if ($this->id) echo ' id="'.htmlspecialchars($this->id).'"';
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foreach($this->attrs as $name => $value)
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{
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echo ' '.$name.'="'.htmlspecialchars($value).'"';
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}
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if ($this->children)
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{
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echo ">\n";
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foreach($this->children as $child)
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{
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$child->toXml($indent."\t");
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}
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echo "$indent</$this->type>\n";
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}
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else
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{
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echo " />\n";
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}
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}
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}
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