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<?php
/* vim: set expandtab sw=4 ts=4 sts=4: */
/**
* hold PMA\libraries\Template class
*
* @package PMA\libraries
*/
namespace PMA\libraries;
/**
* Class Template
*
* Handle front end templating
*
* @package PMA\libraries
*/
class Template
{
/**
* Name of the template
*/
protected $name = null;
/**
* Data associated with the template
*/
protected $data;
/**
* Helper functions for the template
*/
protected $helperFunctions;
const BASE_PATH = 'templates/';
/**
* Template constructor
*
* @param string $name Template name
* @param array $data Variables to be provided to the template
* @param array $helperFunctions Helper functions to be used by template
*/
protected function __construct($name, $data = array(), $helperFunctions = array())
{
$this->name = $name;
$this->data = $data;
$this->helperFunctions = $helperFunctions;
}
/**
* Template getter
*
* @param string $name Template name
* @param array $data Variables to be provided to the template
* @param array $helperFunctions Helper functions to be used by template
*
* @return Template
*/
public static function get($name, $data = array(), $helperFunctions = array())
{
return new Template($name, $data, $helperFunctions);
}
/**
* Adds more entries to the data for this template
*
* @param array|string $data containing data array or data key
* @param string $value containing data value
*/
public function set($data, $value = null)
{
if(is_array($data) && ! $value) {
$this->data = array_merge(
$this->data,
$data
);
} else if (is_string($data)) {
$this->data[$data] = $value;
}
}
/**
* Adds a function for use by the template
*
* @param string $funcName function name
* @param callable $funcDef function definition
*/
public function setHelper($funcName, $funcDef)
{
if (! isset($this->helperFunctions[$funcName])) {
$this->helperFunctions[$funcName] = $funcDef;
} else {
throw new \LogicException(
'The function "' . $funcName . '" is already associated with the template.'
);
}
}
/**
* Removes a function
*
* @param string $funcName function name
*/
public function removeHelper($funcName)
{
if (isset($this->helperFunctions[$funcName])) {
unset($this->helperFunctions[$funcName]);
} else {
throw new \LogicException(
'The function "' . $funcName . '" is not associated with the template.'
);
}
}
/**
* Magic call to locally inaccessible but associated helper functions
*
* @param string $funcName function name
* @param array $arguments function arguments
*/
public function __call($funcName, $arguments)
{
if (isset($this->helperFunctions[$funcName])) {
return call_user_func_array($this->helperFunctions[$funcName], $arguments);
} else {
throw new \LogicException(
'The function "' . $funcName . '" is not associated with the template.'
);
}
}
/**
* Render template
*
* @param array $data Variables to be provided to the template
* @param bool $trim Trim content (does nothing, removed in future)
* @param array $helperFunctions Helper functions to be used by template
*
* @return string
*/
public function render($data = array(), $trim = true, $helperFunctions = array())
{
$template = static::BASE_PATH . $this->name . '.phtml';
try {
$this->set($data);
$this->helperFunctions = array_merge(
$this->helperFunctions,
$helperFunctions
);
extract($this->data);
ob_start();
if (file_exists($template)) {
include $template;
} else {
throw new \LogicException(
'The template "' . $template . '" not found.'
);
}
$content = ob_get_clean();
return $content;
} catch (\LogicException $e) {
ob_end_clean();
throw new \LogicException($e->getMessage());
}
}
}
|
