JS.php

<?php
/**
 * Used to respond to javascript requests
 * @author visco
 * @package sb_JS
 */
class sb_JS{
	
	/**
	 * The current on response headers
	 * @var integer 
	 */
	protected static $sb_on_response_headers = 0;
	
	/**
	 * Uses jsexec_header to set the innerHTML of an element by id
	 * @param integer $id the HTML element id
	 * @param string $html The innerHTML to set
	 * @return string
	 */
	public static function set_html($id, $html){
		$js = '$("'.$id.'").html('.json_encode($html).');';
		return self::exec_header($js);
	}
	
	/**
	 * Executes a script at a certain path
	 * @param string $script_path full path
	 */
	public static function exec_script($script_path, $context=null){
		header('Content-type: text/javascript');
		if(!is_null($context)){
			if(is_object($context)){
				$context = get_object_vars($context);
			}
			if(is_array($context)){
				extract($context);
			}
			
		}
		require($script_path);
	}
	
	/**
	 *
	 * @param string $message The message to notify
	 * @param string $class The class to use for the notification 'error', 'success', etc
	 * @return string
	 */
	public static function notify($message, $class='success'){
		return self::exec_header("sb.notify(".json_encode($message).", ".json_encode($class).");");
	}
	
	/**
	 * Executes the full response text, can be called more than once
	 * @param type $js 
	 */
	public static function exec_response($js){
		header('Content-type: text/javascript');
		echo $js;
	}
	
	/**
	 * Executes a response header
	 * @param type $js 
	 */
	public static function exec_header($js){
		header("sb_on_response".(self::$sb_on_response_headers++).": ".$js);
		
	}
}
?>