Source for file jTpl.class.php

Documentation is available at jTpl.class.php

<?php
/**
* @package jelix
* @subpackage jtpl
* @author Laurent Jouanneau
* @contributor Dominique Papin
* @link http://www.jelix.org
* @licence GNU Lesser General Public Licence see LICENCE file or http://www.gnu.org/licenses/lgpl.html
*/
/**
* template engine
* @package jelix
* @subpackage jtpl
*/
class jTpl {
/**
* all assigned template variables.
* It have a public access only for plugins. So you musn't use directly this property
* except from tpl plugins.
* See methods of jTpl to manage template variables
* @var array
*/
public $_vars = array ();
/**
* temporary template variables for plugins.
* It have a public access only for plugins. So you musn't use directly this property
* except from tpl plugins.
* @var array
*/
public $_privateVars = array ();
/**
* internal use
* It have a public access only for plugins. So you musn't use directly this property
* except from tpl plugins.
* @var array
*/
public $_meta = array();
public function __construct () {
global $gJConfig;
$this->_vars['j_basepath'] = $gJConfig->urlengine['basePath'];
$this->_vars['j_jelixwww'] = $gJConfig->urlengine['jelixWWWPath'];
$this->_vars['j_jquerypath'] = $gJConfig->urlengine['jqueryPath'];
$this->_vars['j_themepath'] = $gJConfig->urlengine['basePath'].'themes/'.$gJConfig->theme.'/';
$this->_vars['j_locale'] = $gJConfig->locale;
$this->_vars['j_datenow'] = date('Y-m-d');
$this->_vars['j_timenow'] = date('H:i:s');
}
/**
* assign a value in a template variable
* @param string|array$name the variable name, or an associative array 'name'=>'value'
* @param mixed $value the value (or null if $name is an array)
*/
public function assign ($name, $value = null) {
if (is_array($name)) {
$this->_vars = array_merge($this->_vars, $name);
} else {
$this->_vars[$name] = $value;
}
}
/**
* assign a value by reference in a template variable
* @param string $name the variable name
* @param mixed $value the value
* @since jelix 1.1
*/
public function assignByRef ($name, & $value) {
$this->_vars[$name] = &$value;
}
/**
* concat a value in with a value of an existing template variable
* @param string|array$name the variable name, or an associative array 'name'=>'value'
* @param mixed $value the value (or null if $name is an array)
*/
public function append ($name, $value = null) {
if (is_array($name)) {
foreach ($name as $key => $val) {
if (isset($this->_vars[$key]))
$this->_vars[$key] .= $val;
else
$this->_vars[$key] = $val;
}
} else {
if (isset($this->_vars[$name]))
$this->_vars[$name] .= $value;
else
$this->_vars[$name] = $value;
}
}
/**
* assign a value in a template variable, only if the template variable doesn't exist
* @param string|array$name the variable name, or an associative array 'name'=>'value'
* @param mixed $value the value (or null if $name is an array)
*/
public function assignIfNone ($name, $value = null) {
if (is_array($name)) {
foreach ($name as $key => $val) {
if (!isset($this->_vars[$key]))
$this->_vars[$key] = $val;
}
} else {
if (!isset($this->_vars[$name]))
$this->_vars[$name] = $value;
}
}
/**
* assign a zone content to a template variable
* @param string $name the variable name
* @param string $zoneName a zone selector
* @param array $params parameters for the zone
* @see jZone
*/
function assignZone ($name, $zoneName, $params = array()) {
$this->_vars[$name] = jZone::get ($zoneName, $params);
}
/**
* append a zone content to a template variable
* @param string $name the variable name
* @param string $zoneName a zone selector
* @param array $params parameters for the zone
* @see jZone
* @since 1.0
*/
function appendZone ($name, $zoneName, $params = array()) {
if (isset($this->_vars[$name]))
$this->_vars[$name] .= jZone::get ($zoneName, $params);
else
$this->_vars[$name] = jZone::get ($zoneName, $params);
}
/**
* assign a zone content to a template variable only if this variable doesn't exist
* @param string $name the variable name
* @param string $zoneName a zone selector
* @param array $params parameters for the zone
* @see jZone
*/
function assignZoneIfNone ($name, $zoneName, $params = array()) {
if (!isset($this->_vars[$name]))
$this->_vars[$name] = jZone::get ($zoneName, $params);
}
/**
* says if a template variable exists
* @param string $name the variable template name
* @return boolean true if the variable exists
*/
public function isAssigned ($name) {
return isset($this->_vars[$name]);
}
/**
* return the value of a template variable
* @param string $name the variable template name
* @return mixed the value (or null if it isn't exist)
*/
public function get ($name) {
if (isset ($this->_vars[$name])) {
return $this->_vars[$name];
} else {
$return = null;
return $return;
}
}
/**
* Return all template variables
* @return array
*/
public function getTemplateVars () {
return $this->_vars;
}
/**
* process all meta instruction of a template
* @param string $tpl template selector
* @param string $outputtype the type of output (html, text etc..)
* @param boolean $trusted says if the template file is trusted or not
*/
public function meta ($tpl, $outputtype = '', $trusted = true) {
$sel = new jSelectorTpl($tpl,$outputtype,$trusted);
$tpl = $sel->toString();
if (in_array($tpl, $this->processedMeta)) {
// we want to process meta only one time, when a template is included
// several time in an other template, or, more important, when a template
// is included in a recursive manner (in this case, it did cause infinite loop, see #1396).
return;
}
$this->processedMeta[] = $tpl;
$md = $this->getTemplate ($sel, $outputtype, $trusted);
$fct = 'template_meta_'.$md;
$fct($this);
return $this->_meta;
}
/**
* display the generated content from the given template
* @param string $tpl template selector
* @param string $outputtype the type of output (html, text etc..)
* @param boolean $trusted says if the template file is trusted or not
*/
public function display ($tpl, $outputtype = '', $trusted = true) {
$sel = new jSelectorTpl($tpl,$outputtype,$trusted);
$tpl = $sel->toString();
$previousTpl = $this->_templateName;
$this->_templateName = $tpl;
$this->recursiveTpl[] = $tpl;
$md = $this->getTemplate ($sel, $outputtype, $trusted);
$fct = 'template_'.$md;
$fct($this);
array_pop($this->recursiveTpl);
$this->_templateName = $previousTpl;
}
/**
* contains the name of the template file
* It have a public access only for plugins. So you musn't use directly this property
* except from tpl plugins.
* @var string
* @since 1.1
*/
public $_templateName;
protected $recursiveTpl = array();
protected $processedMeta = array();
/**
* include the compiled template file and call one of the generated function
* @param string|jSelectorTpl$tpl template selector
* @param string $outputtype the type of output (html, text etc..)
* @param boolean $trusted says if the template file is trusted or not
* @return string the suffix name of the function to call
*/
protected function getTemplate ($tpl, $outputtype = '', $trusted = true) {
$tpl->userModifiers = $this->userModifiers;
$tpl->userFunctions = $this->userFunctions;
jIncluder::inc($tpl);
return md5($tpl->module.'_'.$tpl->resource.'_'.$tpl->outputType.($trusted?'_t':''));
}
/**
* return the generated content from the given template
* @param string $tpl template selector
* @param string $outputtype the type of output (html, text etc..)
* @param boolean $trusted says if the template file is trusted or not
* @param boolean $callMeta false if meta should not be called
* @return string the generated content
*/
public function fetch ($tpl, $outputtype='', $trusted = true, $callMeta=true) {
$content = '';
ob_start ();
try{
$sel = new jSelectorTpl($tpl, $outputtype, $trusted);
$tpl = $sel->toString();
$previousTpl = $this->_templateName;
$this->_templateName = $tpl;
$this->processedMeta[] = $tpl;
$this->recursiveTpl[] = $tpl;
$md = $this->getTemplate ($sel, $outputtype, $trusted);
if ($callMeta) {
$fct = 'template_meta_'.$md;
$fct($this);
}
$fct = 'template_'.$md;
$fct($this);
array_pop($this->recursiveTpl);
$this->_templateName = $previousTpl;
$content = ob_get_clean();
} catch(Exception $e) {
ob_end_clean();
throw $e;
}
return $content;
}
protected $userModifiers = array();
/**
* register a user modifier. The function should accept at least a
* string as first parameter, and should return this string
* which can be modified.
* @param string $name the name of the modifier in a template
* @param string $functionName the corresponding PHP function
* @since jelix 1.1
*/
public function registerModifier ($name, $functionName) {
$this->userModifiers[$name] = $functionName;
}
protected $userFunctions = array();
/**
* register a user function. The function should accept a jTpl object
* as first parameter.
* @param string $name the name of the modifier in a template
* @param string $functionName the corresponding PHP function
* @since jelix 1.1
*/
public function registerFunction ($name, $functionName) {
$this->userFunctions[$name] = $functionName;
}
/**
* return the current encoding
* @return string the charset string
* @since 1.0b2
*/
public static function getEncoding () {
return $GLOBALS['gJConfig']->charset;
}
}

Documentation generated on Mon, 19 Sep 2011 14:13:41 +0200 by phpDocumentor 1.4.3