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phptsmadmin/application/classes/lnApp/HTMLRender.php

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2011-01-17 05:33:55 +00:00
<?php defined('SYSPATH') or die('No direct access allowed.');
/**
* This class is the base used for common static methods that are used
* for rendering.
*
* @package lnApp
* @subpackage Page
* @category Abstract/Helpers
* @author Deon George
* @copyright (c) 2010 Deon George
* @license http://dev.leenooks.net/license.html
*/
abstract class lnApp_HTMLRender {
protected static $_media_path = 'default/media';
protected static $_required_keys = array();
protected static $_unique_vals = array();
public function __construct() {
if (! isset(static::$_data))
throw new Kohana_Exception(':class is missing important static variables',array(':class'=>get_called_class()));
}
/**
* Add an item to be rendered
*
* @param array Item to be added
*/
public static function add($item,$prepend=FALSE) {
foreach (static::$_required_keys as $key)
if (! isset($item[$key]))
throw new Kohana_Exception('Missing key :key for image',array(':key'=>$key));
// Check for unique keys
if (static::$_unique_vals)
foreach (static::$_unique_vals as $v=>$u)
foreach (static::$_data as $d)
if (isset($d[$u]) && $d['data'] == $item['data'])
return;
if ($prepend)
array_unshift(static::$_data,$item);
else
array_push(static::$_data,$item);
}
/**
* Set the space used between rendering output
*/
public static function setSpacer($spacer) {
static::$_spacer = $spacer;
}
/**
* Set the Kohana Media Path, used to determine where to find additional
* HTML content required for rendering.
*/
public static function setMediaPath($path) {
static::$_media_path = $path;
}
/**
* Factory instance method must be declared by the child class
*/
public static function factory() {
throw new Kohana_Exception(':class is calling :method, when it should have its own method',
array(':class'=>get_called_class(),':method'=>__METHOD__));
}
/**
* Return the HTML to render the header images
*/
public function __toString() {
try {
return static::render();
}
// Display the exception message
catch (Exception $e) {
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Kohana_Exception::handler($e);
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}
}
/**
* Rendering must be declared by the child class
*/
protected function render() {
throw new Kohana_Exception(':class is calling :method, when it should have its own method',
array(':class'=>get_called_class(),':method'=>__METHOD__));
}
}
?>