<?php
/**
 * App:
 *   main_menu = [menu safe name($_REQEST) => menu link name]
 *     is_allowed_menu() - checks if User can execute this menu (in array main_menu)
 *   functions like NEW_RECORD, EDIT_RECORD, UPDATEDB etc. not in MENU_INIT
 *   history: [menu =>]
 * 
 * [AJAX]
 *   print_js_ajax_callback
 *     js function definitions
 *   link_ajax( $name, $fun_name, $fun_args = array(), $attr = array() )
 *     create link to execute ajax function
 *   exec_ajax_request
 *     execute ajax request
 *   link_ajax_load_on_ready( $fun_name, $fun_args = array(), $attr = array() )
 *     load content from ajax request to function $fun_name
 *   TODO: ajax form creator
 *   TODO: ajax data table
 */

Lib::loadClass('V');

class App {

	/**
	 * Generate URL-encoded query string.
	 * @param $query - array or string
	 */
	public static function build_http_query($query) {
		$query_arr = array();// like in parse_url @see http://pl.php.net/manual/pl/function.parse-url.php
		$query_reserved_words = array('_scheme','_host','_user','_pass','_path','_query','_fragment');

		if (is_array($query)) {
			foreach ($query as $k => $v) {
				if (in_array($k, $query_reserved_words)) {
					$query_arr [substr($k, 1)] = $v;
				} else if ($k == '#') {
					$query_arr['fragment'] = $v;
				} else {
					$query_arr['query'][$k]= $v;
				}
			}
		}
		else {
			$query_arr = parse_url($query);
			//	'http://uzytkownik:haslo@serwer/sciezka?arg=wartosc#kotwica'
			//	[scheme] => http
			//	[host] => serwer
			//	[user] => uzytkownik
			//	[pass] => haslo
			//	[path] => /sciezka
			//	[query] => arg=wartosc
			//	[fragment] => kotwica
			if (!empty($query_arr['query'])) {
				$query_arr_query = $query_arr['query'];
				parse_str($query_arr_query, $query_arr['query']);
			}
		}
		//	[scheme] => http
		//	[host] => serwer // $_SERVER['HTTP_HOST'] or SERVER_NAME @see http://stackoverflow.com/questions/2297403/http-host-vs-server-name
		//	[user] => uzytkownik
		//	[pass] => haslo
		//	[path] => /sciezka
		//	[query] => Array( arg=>wartosc, ... )
		//	[fragment] => kotwica

		// [scheme] -> require [host]
		// [user] -> require [host]
		// [pass] -> require [user],[host]
		// [path] -> require [host]
		// [query] -> 
		// [fragment] -> require [query]

		// App add task always
		if (!empty($query_arr['query'])) {
			if (empty($query_arr['query']['task'])) {
				if ($task = V::get('task', self::get_default_task(), $_REQUEST)) {
					$query_arr['query']['task'] = $task;
				}
			}
		}

		$href = '';
		if (!empty($query_arr['scheme'])) {
			$href .= $query_arr['scheme'].'://';
			// host is required if scheme
			if (empty($query_arr['host'])) $query_arr['host'] = $_SERVER['HTTP_HOST'];
		}
		if (!empty($query_arr['user'])) {// user:pass@server
			$href .= $query_arr['user'];
			if (!empty($query_arr['pass'])) $href .= ':'.$query_arr['pass'];
			$href .= '@';
			// host is required if user
			if (empty($query_arr['host'])) $query_arr['host'] = $_SERVER['HTTP_HOST'];
		}
		if (!empty($query_arr['host'])) $href .= $query_arr['host'];
		//$href .= (!empty($query_arr['path']))? $query_arr['path'] : $query_arr['PHP_SELF'];
		if (!empty($query_arr['path'])) $href .= $query_arr['path'];
		if (!empty($query_arr['query'])) {
			$tmp_query_arr = array();
			foreach ($query_arr['query'] as $k => $v) {
				if (is_array($v)) {
					if (strlen($k) < 3 || substr($k, -2) != '[]') {
						$k .= '[]';
					}
					foreach ($v as $v_arg_val) {
						$tmp_query_arr[] = '' . $k . '=' . $v_arg_val;
					}
				} else {
					$tmp_query_arr[] = '' . $k . '=' . $v;
				}
			}
			$href .= "?".implode("&", $tmp_query_arr);
		}
		if (!empty($query_arr['fragment'])) $href .= '#'.$query_arr['fragment'];

		return $href;
	}

	/**
	 * @param $out_type - 'show', 'search'
	 * @param $name - 
	 * @param $sql_type - 
	 * @param $value - 
	 * @param $attr - 
	 */
	public static function _field($out_type, $name, $sql_type, $value = '', $attr = array()) {
		$ret = '';
		//$type = $_SESSION[$table_column]['TYPE'][$field];
		$type = $sql_type;
		//$name = $field;//$_SESSION[$table_column]['DESC'][$_SESSION[$table_column]['DESC_TO_KEY'][$field]];
		//if ($_SESSION['CURRENT_MENU']=='NEW_RECORD') $name = 'NEW_RECORD['.$name.']';

		// html tag
		$tag = new stdClass();
		$tag->name = '';
		$tag->attrs = '';
		$tag->cnt = null;

		// param attributes
		if (!empty($attr)) {
			foreach ($attr as $k_attr_name => $v_attr) {
				// parse param $k_attr_name
				switch ($k_attr_name) {
					case 'class': {
						$tag->attrs[$k_attr_name][] = $v_attr;
						break;
					}
					case 'style': {
						$attr_arr = array();
						foreach ($v_attr as $k_style => $v_style) {
							$attr_arr[] = $k_style.'='.$v_style;
						}
						$tag->attrs[$k_attr_name][] = $v_attr;
						break;
					}
					// TODO: ajax, etc
					default: {
						$tag->attrs[$k_attr_name] = $v_attr;
					}
				}
			}
		}

		// size X -> style="width: Y px" : X=10 -> Y=75px, 1char=7,5px

		// parse type
		if (strstr($type, "enum")) {
			$tag->name = 'select';
			$tag->attrs['name'] = $name;
			$tag->attrs['id'] = $name;
			$tag->cnt = '<option value="%">'." [ Wybierz ] ".'</option>';

			$select_values = $type;
			$select_values = explode("(", $select_values);
			$select_values = end($select_values);
			$select_values = explode(")", $select_values);
			$select_values = reset($select_values);
			$select_values = explode(",", $select_values);
			sort($select_values);
			foreach ($select_values as $v) {
				$v = trim($v, "' ");//usuwa spacje i ' z poczatku i konca
				$max_length = 26;// TODO: param in @attr
				$sel = ($v == "$value")? ' selected="selected"' : '';
				$tag->cnt .= '<option value="'.$v.'"'.$sel.'>'.substr($v, 0, $max_length).' </option>';
			}
		}
		else if ((strstr($type, "char")) || (strstr($type, "int"))) {
			$tag->name = 'input';
			$max_length = $type;
			$max_length = explode("(",$max_length);
			$max_length = end($max_length);
			$max_length = explode(")",$max_length);
			$max_length = reset($max_length);
			$min_length = (strstr($type, "int"))? 4 : 10;// min length if empty value
			$tag->attrs['name'] = $name;
			$tag->attrs['type'] = 'text';
			$tag->attrs['id'] = $name;
			$tag->attrs['value'] = htmlspecialchars($value);// TODO: htmlspecialchars
			$tag->attrs['maxlength'] = $max_length;
			if (empty($tag->attrs['size'])) {
				$size = strlen($value) + 2;
				if ($size < $min_length) $size = $min_length;
				$tag->attrs['size'] = $size;
			}
			//$tag->attrs['style']['width'] = ceil($size * 7).'px';
		}
		else if (strstr($type, "datetime") || strstr($type, "date") || strstr($type, "timestamp")) {
			$max_length = $type;
			$max_length = end( explode("(", $max_length) );
			$max_length = reset( explode(")", $max_length) );
			$value = substr($value, 0, 10);
			$tag->name = 'input';
			$tag->attrs['name'] = $name;
			$tag->attrs['type'] = 'text';
			$tag->attrs['id'] = $name;
			$tag->attrs['value'] = $value;// TODO: htmlspecialchars
			$tag->attrs['maxlength'] = $max_length;
			if (empty($tag->attrs['size'])) $tag->attrs['size'] = 10;
			$tag->attrs['class'][] = 'date-pick';
		}
		else if (strstr($type, "double") || strstr($type, "float")) {
			$tag->name = 'input';
			$max_length = $type;
			$max_length = end( explode("(", $max_length) );
			$max_length = reset( explode(")", $max_length) );
			$value = substr($value, 0, 10);
			$tag->attrs['name'] = $name;
			$tag->attrs['type'] = 'text';
			$tag->attrs['id'] = $name;
			$tag->attrs['value'] = $value;// TODO: htmlspecialchars
			$tag->attrs['maxlength'] = $max_length;
			if (empty($tag->attrs['size'])) $tag->attrs['size'] = 6;// TODO: param in @attr
		}
		else if (strstr($type, "text")) {
			if ($out_type == 'search') {
				$tag->name = 'input';
				$tag->attrs['name'] = $name;
				$tag->attrs['id'] = $name;
				$tag->attrs['maxlength'] = 255;
				$tag->attrs['value'] = $value;// TODO: htmlspecialchars
			} else {
				$tag->name = 'textarea';
				$tag->attrs['name'] = $name;
				$tag->attrs['id'] = $name;
				if (empty($tag->attrs['rows'])) $tag->attrs['rows'] = 5;// TODO: param in @attr
				if (empty($tag->attrs['cols'])) $tag->attrs['cols'] = 70;// TODO: param in @attr
				$tag->cnt = $value;// TODO: htmlspecialchars
			}
		}
		else if ('typespecial_' == substr($type, 0, 12)) {
			if (!function_exists($type)) {
				echo'<p class="red">'."Typespecial function '".substr($type, 12)."' not exists!".'</p>';
			} else {
				return $type( $name, $out_type, $value, $attr );
			}
		}
		else {
			//$ret .= "UNKNOWN $type";
		}

		$ret = '';
		if ($tag->name) {

			// attributes with array values - like class
			if (empty($tag->attrs)) {
				$tag->attrs = '';
			} else {
				$attr_arr = array();
				foreach ($tag->attrs as $k_attr_name => $v_attr) {
					switch ($k_attr_name) {
						case 'class': {
							$v_attr = implode(' ', $v_attr);
							break;
						}
						case 'style': {
							$style_attr_arr = array();
							foreach ($v_attr as $k_style => $v_style) {
								$style_attr_arr[] = ''.$k_style.':'.$v_style;
							}
							$v_attr = implode(';', $style_attr_arr);
							break;
						}
						default: {
							//
						}
					}
					$attr_arr[] = $k_attr_name.'="'.$v_attr.'"';
				}

				$tag->attrs = ' '.implode(' ', $attr_arr);
			}

			// tag style
			if ($tag->cnt !== null) {
				$ret .= '<'.$tag->name.$tag->attrs.'>'.$tag->cnt.'</'.$tag->name.'>';
			} else {
				$ret .= '<'.$tag->name.$tag->attrs.' />';
			}
		}
		return $ret;
	}

	public static function field($name, $sql_type, $value = '', $attr = array()) {
		return self::_field('show', $name, $sql_type, $value, $attr);
	}

	public static function field_search($name, $sql_type, $value = '', $attr = array()) {
		return self::_field('search', $name, $sql_type, $value, $attr);
	}

	public static function set_function_init_output($cnt) {
		self::set_state('function_init_output', $cnt);
	}
	public static function get_function_init_output() {
		return self::get_state('function_init_output');
	}
	public static function exec_function_init() {
		if (($fun_init = V::get('function_init', '', $_REQUEST)) != '') {
			ob_start();
			if (function_exists($fun_init)) {
				$fun_init();
			} else {
				echo'<p class="err">'."function_init not exists!".'</p>';
			}
			$cnt = ob_get_contents();
			ob_clean();
			self::set_function_init_output($cnt);
		}
	}

	public static function quit() {
		App::set_state('quit', true);
	}
	public static function is_quit() {
		return App::get_state('quit');
	}
	public static function set_default_task($default_task) {
		self::set_state('default_task', $default_task);
	}
	public static function get_default_task() {
		return self::get_state('default_task');
	}
	public static function get_task() {
		$default_task = self::get_default_task();
		$task = V::get('task', $default_task, $_GET);
		return $task;
	}
	public static function exec_task() {
		self::show_msgs();

		echo "\n".'<div class="function_init_output">'."\n";
			echo self::get_function_init_output();
		echo "\n".'</div>'."\n";

		if (self::is_quit()) {
			return;
		}

		$default_task = self::get_default_task();
		if ($task = V::get('task', $default_task, $_GET)) {
			$task_fun = 'task_'.$task;
			if (function_exists($task_fun)) {
				echo "\n".'<div id="body_content">'."\n";
					$task_fun();
				echo "\n".'</div>'."\n";
			} else {
				echo'<p class="err">'."Wrong task!".'</p>';
			}
		}
	}

	public static function show_msgs() {
		$msgs_all = self::get_msgs();
		if (!empty($msgs_all)) {
			foreach ($msgs_all as $msg_type => $msgs) {
				echo "\n".'<div class="app-msgs app-msg-type-'.$msg_type.'">'."\n";
				echo implode('<br />', $msgs);
				echo "\n".'</div>'."\n";
			}
		}
	}

	public static function print_js_ajax_callback() {
		static $_showed;
		if (!$_showed) {
			?>
				<script>
// linkPopup - jQuery plugin
(function($){
$.fn.linkPopup = function(event){

function showPopup(trigger,popup,e){
	var et = e.pageY,
	el = e.pageX,
	//p = popup.height(),
	pw = 700,
	ph = 400,// ~ height auto
	ww = $(window).width(),
	wh = $(window).height(),
	ws = $(window).scrollTop(),
	// X center over mouse, Y 20 up
	pos_left = e.pageX - pw/2,
	pos_top = e.pageY - 20,
	popup_wrap=popup.parent();
	// show all popup
	if (pos_left + pw > ww) { pos_left = ww - pw - 20; }
	else if (pos_left < 0) { pos_left = 10; }
	if (pos_top + ph > ws + wh) { pos_top = ws + wh - ph; }
	else if (pos_top < ws) { pos_top = ws; }
	//pos_top = (et + p) > (s + wh) ? (s + wh - p) : et - 10,

	//if (popup.text() === '') {
	if (true) {
		// empty
		console.log('popup empty');
		console.log(trigger.attr('href'))

		jQuery.ajax({
			type: 'GET',
			url: trigger.attr('href'),
			success: function(data){
				//console.log(data);
				popup.html(data)

				popup_wrap.css({width: pw, top: pos_top, left: pos_left, height: ph});// width and height
				//popup_wrap.css({top: pos_top, left: pos_left});
				popup_wrap.fadeIn(100);
			}
		});
	}else{
		console.log('popup full');

		popup_wrap.css({width: pw, top: pos_top, left: pos_left, height: ph});// width and height
		//popup_wrap.css({top: pos_top, left: pos_left});
		popup_wrap.fadeIn(100);
	}
}

return this.each(function(){
var trigger = $(this), timer, popup = null, popup_wrap=null;//$(this).next();
popup = jQuery('#tip-popup-box');
// create div if not exists ('#tip-popup-box')
//if (!popup.hasClass('tip-popup-box'))
if(popup.length==0){
	//console.log('Error popup not found, creating...')
	popup = jQuery('<div></div>')
	popup.attr('id', 'tip-popup-box')
	popup.text('')
	jQuery('body').append(popup);// popup.insertAfter(trigger);
	console.log('created')

	console.log('wrap popup...')
	popup.wrap('<div></div>')
	popup_wrap=popup.parent()
	popup_wrap.addClass('tip-popup-wrap')
	popup_wrap.css('display', 'none')
	jQuery('<div class=\"title\"><button class=\"btn_close\">X</button></div>').insertBefore(popup)
	console.log('wrap popup end')
}else{
	popup_wrap=popup.parent()
}

//console.log(trigger.attr('id'));
trigger.attr('onclick','return false;')
trigger.click(function(e){
	clearTimeout(timer);
	timer = setTimeout(function(){ showPopup(trigger,popup,e); }, 500);
});
//popup.bind('mouseleave', function(){
//	trigger.removeClass('active');
//	clearTimeout(timer);
//	timer = setTimeout(function(){ popup.fadeOut(50); }, 500);
//})

// dont close after click on popup - TODO: X (close btn)
popup_wrap.find('.btn_close').bind('click', function(){
	trigger.removeClass('active');
	clearTimeout(timer);
	timer = setTimeout(function(){ popup_wrap.fadeOut(50); }, 500);
});

	// execute click on init:
	clearTimeout(timer);
	timer = setTimeout(function(){ showPopup(trigger,popup,event); }, 500);
});
};
})(jQuery);


function procesy_ajax_link(l, result_type, result){
	return procesy_ajax_run(l, l.href, result_type, result);
}
function insertAfter(parent, n, referenceNode) {
  parent.insertBefore(n, referenceNode.nextSibling);
}
function procesy_ajax_run(l, href, result_type, result){
	var img = jQuery('<img src=\"./stuff/i/loading.gif\" alt=\"loading\" />');
	l.parentNode.appendChild(img.get(0));//img.insertAfter(l);
	var res = null;
	if(result_type == 'id'){
		res = jQuery('#' + result).get(0);
	}else if(result_type == 'after'){
		res = document.createElement('div');
		insertAfter(l.parentNode, res, l);//res.insertAfter(l);
	}else if(result_type == 'override'){
		res = l;
		//insertAfter(l.parentNode, res, l);//res.insertAfter(l);
	}else if(result_type == 'override_parent'){
		res = l.parentNode;
		//insertAfter(l.parentNode, res, l);//res.insertAfter(l);
	}else if(result_type == 'popup'){
		// TODO: create or get windows object if already exists
		//var document.createElement('div');
		// TODO: add res to body at the end! popup z sew (SewView)
		//jQuery(l).linkPopup();
try{
		jQuery(l).linkPopup(window.event);// create window with link href to put into window
}catch(e){
	console.log('e...')
	console.log(e)
}
		jQuery(img).remove();
		return false;
	}
	if(!res){
		console.log('error: no res!');
		return false;
	}
	jQuery.ajax({
		type: 'GET',
		url: href,
		success: function(data){
			//console.log(data);
			if(result_type == 'after') {
				//jQuery(data).insertAfter(l);
				res.innerHTML = data;
			}else if(result_type == 'override'){
				//jQuery(data).insertAfter(l);
				//res.innerHTML += data;
				//jQuery(res).append(data)
				jQuery(res).after(data);
				jQuery(l).remove();
				//res.parentNode.removeChild(l)
			}else if(result_type == 'override_parent'){
				//jQuery(data).insertAfter(l);
				//res.innerHTML += data;
				//jQuery(res).append(data)
				jQuery(res).after(data);
				jQuery(l.parentNode).remove();
				//res.parentNode.removeChild(l)
			}else if(result_type == 'popup'){
				//res.html(data)
try{
				//var link_popup=jQuery(l).linkPopup();// create window
				var link_popup=jQuery(l).linkPopup(data);// create window and put data into window
				//link_popup.setData(data);// put data into window
				jQuery(l).click();
}catch(e){
	console.log('e...')
	console.log(e)
}
			}
			jQuery(img).remove();
		}
	});
	return false;
}


jQuery(document).ready(function(){
	jQuery('.ajax_load_on_ready').each(function(index, l){
		// html - replace contetn
		l.innerHTML += ' <img src=\"./stuff/i/loading.gif\" alt=\"loading\" />';
		// append
		jQuery.ajax({
			type: 'GET',
			url: l.href,
			success: function(data){
				jQuery(data).insertAfter(l);
				jQuery(l).remove();
			}
		});
	});
});


// lightbox, TODO: init after ajax
jQuery(function() {
	$('a.lightbox').each(function(){
		jQuery(this).lightBox({
			overlayBgColor:'#000',
			overlayOpacity:0.7,
			imageLoading:  'stuff/i/loading.gif', // (string) Path and the name of the loading icon
			imageBtnPrev:  'stuff/i/prev.gif',    // (string) Path and the name of the prev button image
			imageBtnNext:  'stuff/i/next.gif',    // (string) Path and the name of the next button image
			imageBtnClose: 'stuff/i/del.png',   // close.gif (string) Path and the name of the close btn
			imageBlank:    'stuff/i/blank.gif',   // (string) Path and the name of a blank image (one pixel)
			containerResizeSpeed:350,
			showImageData:false, // show image data?
			txtImage:'Obrazek',
			txtOf:'z'
		});
	});
});


function scrollToProces(item_id) {
	var el=jQuery('#TREE'+item_id);
	el.parents('.close').removeClass('close');// open all closed elements
	if (!el.length) {
		alert(item_id + ' prawdopodbnie nie istnieje.');
	} else {
		el.scrollintoview({
			duration: 'fast',
			direction: 'vertical',
			complete: function() {
				el.addClass('active');
			}
		});
	}
	return false;
}
			</script>
		<?php
		$_showed = true;
	}
}

	/**
	 * @returns html link tag <a ... > ... </a>
	 * @param $name
	 * @param $href
	 * @param $attr
	 */
	public static function link($name, $href, $attr = array()) {

		$out_href = App::build_http_query($href);

		$txt = $name;
		$ico = V::get('ico', '', $attr);
		$ico_height = V::get('ico_height', 16, $attr, 'int');
		if (isset($attr['ico_height'])) unset($attr['ico_height']);
		if ($ico) {
			if (count(explode('.', $ico)) == 1) {
				$ico .= '.gif';// default ico format
			}
			if (file_exists(APP_PATH_ROOT . DS . 'icon' . DS . $ico)) {
				$txt = '<img src="'."icon/".$ico.'" height="'.$ico_height.'" alt="'.$name.'" />';
			}
			unset($attr['ico']);
		}
		$ico = V::get('ico_after_text', '', $attr);
		if ($ico) {
			if (count(explode('.', $ico)) == 1) {
				$ico .= '.gif';
			}
			if (file_exists( APP_PATH_ROOT . DS . 'icon' . DS . $ico )) {
				$txt .= ' <img src="'."icon/".$ico.'" height="'.$ico_height.'" alt="'.$name.'" />';
			}
			unset($attr['ico_after_text']);
		}

		$iconBootstrap = V::get('iconBootstrap', '', $attr);
		if ($iconBootstrap) {
			$txt = '<i class="' . $iconBootstrap . '" style="margin:0"></i>';
		}
		$iconBootstrapAfterText = V::get('iconBootstrapAfterText', '', $attr);
		if ($iconBootstrapAfterText) {
			$txt .= '<i class="' . $iconBootstrapAfterText . '" style="margin:0"></i>';
		}

		$p_attr = array();
		if (!empty($attr)) {
			$p_attr_arr = array();
			foreach ($attr as $k => $v) {
				$p_attr_arr[] = ''.$k.'="'.$v.'"';
			}
			$p_attr[] = ' '.implode(' ',$p_attr_arr);
		}
		$p_attr = (!empty($p_attr))? ' '.implode(' ', $p_attr) : '';

		return '<a href="'.$out_href.'"'.$p_attr.'>'.$txt.'</a>';
	}

	/**
	 * @returns html ajax link tag <a ... > ... </a>
	 * @param $name
	 * @param $href
	 * @param $attr
	 */
	public static function link_ajax($name, $fun_name, $fun_args = array(), $attr = array()) {
		// TODO: where to store ajax result: after, id, function
		// TODO: App::print_js_ajax_callback()

		$txt = $name;

		$ico = V::get('ico', '', $attr);
		$ico_height = V::get('ico_height', 16, $attr, 'int');
		if (isset($attr['ico_height'])) unset($attr['ico_height']);
		if ($ico) {
			if (count(explode('.', $ico)) == 1) {
				$ico .= '.gif';// default ico format
			}
			if (file_exists(APP_PATH_ROOT . DS . 'icon' . DS . $ico)) {
				$txt = '<img src="'."icon/".$ico.'" height="'.$ico_height.'" alt="'.$name.'" />';
			}
			unset($attr['ico']);
		}
		$ico = V::get('ico_after_text', '', $attr);
		if ($ico) {
			if (count(explode('.', $ico)) == 1) {
				$ico .= '.gif';
			}
			if (file_exists( APP_PATH_ROOT . DS . 'icon' . DS . $ico )) {
				$txt .= ' <img src="'."icon/".$ico.'" height="'.$ico_height.'" alt="'.$name.'" />';
			}
			unset($attr['ico_after_text']);
		}

		$iconBootstrap = V::get('iconBootstrap', '', $attr);
		if ($iconBootstrap) {
			$txt = '<i class="' . $iconBootstrap . '" style="margin:0"></i>';
		}
		$iconBootstrapAfterText = V::get('iconBootstrapAfterText', '', $attr);
		if ($iconBootstrapAfterText) {
			$txt .= '<i class="' . $iconBootstrapAfterText . '" style="margin:0"></i>';
		}


		$js_fun_attr = array();
		$js_fun_attr['result_type'] = V::get('js_result_type', 'node', $attr);
		$js_fun_attr['result'] = V::get('js_result', 'after', $attr);
		unset($attr['js_result_type']);
		unset($attr['js_result']);
		$js = "return procesy_ajax_link(this, '".$js_fun_attr['result_type']."', '".$js_fun_attr['result']."');";
		$attr['onclick'] = $js;
		$p_attr = array();
		if (!empty($attr)) {
			$p_attr_arr = array();
			foreach ($attr as $k => $v) {
				$p_attr_arr[] = ''.$k.'="'.$v.'"';
			}
			$p_attr[] = implode(' ',$p_attr_arr);
		}
		$p_attr = (!empty($p_attr))? ' '.implode(' ', $p_attr) : '';

		$href_args = array();
		$href_args[] = "_ajax_request=".$fun_name;
		foreach ($fun_args as $k => $v) {
			$href_args[] = "$k=$v";
		}
		$out_href = "?" . implode("&", $href_args);

		return '<a href="'.$out_href.'"'.$p_attr.'>'.$txt.'</a>';
	}
	/*
	 * link_ajax_load_on_ready( $fun_name, $fun_args = array(), $attr = array() )
	 *   load content from ajax request to function $fun_name
	 */
	public static function link_ajax_load_on_ready($name, $fun_name, $fun_args = array(), $attr = array()) {
		// TODO: where to store ajax result: after, id, function
		// TODO: App::print_js_ajax_callback()
		$js = "return procesy_ajax_link(this, 'override', 'node');";
		$attr['onclick'] = $js;
		$attr['class'] = 'ajax_load_on_ready';
		$p_attr = array();
		if (!empty($attr)) {
			$p_attr_arr = array();
			foreach ($attr as $k => $v) {
				$p_attr_arr[] = ''.$k.'="'.$v.'"';
			}
			$p_attr[] = implode(' ',$p_attr_arr);
		}
		$p_attr = (!empty($p_attr))? ' '.implode(' ', $p_attr) : '';

		$href_args = array();
		$href_args[] = "_ajax_request=".$fun_name;
		foreach ($fun_args as $k => $v) {
			$href_args[] = "$k=$v";
		}
		$out_href = "?" . implode("&", $href_args);

		$txt = $name;

		return '<a href="'.$out_href.'"'.$p_attr.'>'.$txt.'</a>';
	}

	// ?_ajax_request=FUNCTION
	public static function exec_ajax_request() {
		if (($ajax_request_fun = V::get('_ajax_request', '', $_REQUEST)) != '') {
			// TODO: SEF( $ajax_request_fun )
			if (function_exists($ajax_request_fun)) {
				//sleep(1);
				if ( User::logged() ) {
					$ajax_request_fun();
				} else {
					sleep(1);
					header("HTTP/1.0 401 Unauthorized");
				}
			} else {
				sleep(1);
				header("HTTP/1.0 404 Not Found");
			}
			die();
		}
	}

	public static function show_head_css() {
		?>
		<!-- <link rel="stylesheet" type="text/css" href="stuff/jquery-ui-smoothness/jquery-ui-1.10.1.custom.min.css"> -->
		<style type="text/css">
.tip-popup-wrap{display:none;padding:0;position:absolute;z-index:10000;background:#fff;border:4px solid #444;}
.tip-popup-wrap #tip-popup-box{margin:0;padding:3px;background:#fff;color:#000;text-align:left;overflow:auto;}
.tip-popup-wrap .title{margin:0;background:#444;color:#fff;line-height:20px;font-weight:bold;text-align:right;}
.tip-popup-wrap .title h3{margin:0;padding:0;border-bottom:1px solid #ccc;background:#999;color:#fff;font-weight:bold;}

.app-msgs{margin:3px 10px;padding:4px;border:1px solid #666;}
.app-msg-type-msg{boder-color:#008000;background:#CEFFCE;}
.app-msg-type-err{boder-color:#FF0000;background:#FFB8B8;}

/* lightbox */
#jquery-overlay { width:100%; height:500px; position:absolute; top:0; left:0; z-index:90; }
#jquery-lightbox { width:100%; position:absolute; top:0; left:0; z-index:100; text-align:center; line-height:0; }
#jquery-lightbox img { border:none; }
#lightbox-container-image-box { width:250px; height:250px; margin:0 auto; position:relative; background-color:#fff; }
#lightbox-container-image { padding:10px; }
#lightbox-loading { position:absolute; top:40%; left:0%; height:25%; width:100%; text-align:center; line-height:0; }
#lightbox-nav { position:absolute; top:0; left:0; height:100%; width:100%; z-index:10; }
#lightbox-container-image-box > #lightbox-nav { left:0; }
#lightbox-nav a { outline:none;}
#lightbox-nav-btnPrev,
#lightbox-nav-btnNext { display:block; width:49%; height:100%; zoom:1; }
#lightbox-nav-btnPrev { float:left; left:0; }
#lightbox-nav-btnNext { float:right; right:0; }
#lightbox-container-image-data-box { width:100%; overflow:auto; margin:0 auto; padding:0 10px 0; font:10px Helvetica, sans-serif; background-color:#fff; line-height:1.4em; }
#lightbox-container-image-data { padding:0 10px; color:#666; }
#lightbox-container-image-data #lightbox-image-details { float:left; width:70%; text-align:left; }
#lightbox-image-details-caption { font-weight:bold; }
#lightbox-image-details-currentNumber { display:block; clear:left; padding-bottom:1.0em; }
#lightbox-secNav-btnClose { float:right; width:66px; padding-bottom:0.7em; }

.DEBUG_S {display:none;}
body.show-DEBUG_S .DEBUG_S {display:block;}
		</style>
		<?php
	}
	public static function show_head_js() {
		?>
		<!-- <script src="stuff/jquery-ui.custom.min.js"></script> -->
		<script src="stuff/jquery.lightbox-0.5.js"></script>
		<script src="stuff/jquery.scrollintoview.min.js"></script>
		<?php
		echo self::print_js_ajax_callback();
	}

	public static function ui_widget($type, $title, $msg = '') {
		$ico_types = array('check', 'info', 'alert');
		$ui_states = array('check' => 'highlight', 'info' => 'highlight', 'alert' => 'error');
		$ico = (in_array($type, $ico_types))? '<span class="ui-icon ui-icon-' . $type . '" style="float:left; margin-right:.3em;"></span>' : '';
		$ui_state = V::get($type, 'highlight', $ui_states);
		$out .= '<div class="ui-widget">';
			$out .= '<div class="ui-state-' . $ui_state . ' ui-corner-all" style="margin-top:20px; padding:0 .7em;">';
				$out .= '<p>' . $ico;
				if ($type == 'alert') {
					$out .= '<strong>' . "Error: " . '</strong>' . $title;
				} else {
					$out .= '<strong>' . $title . '</strong>';
				}
				echo '</p>';
				if (!empty($msg)) {
					$out .= '<p>' . $msg . '</p>';
				}
			$out .= '</div>';
		$out .= '</div>';
		return $out;
	}

	/**
	 * object state
	 */
	public static function get_state($k) {
		return self::state('get', $k);
	}
	public static function set_state($k, $v) {
		return self::state('set', $k, $v);
	}
	public static function state($task, $k, $v = null) {
		static $state;
		if (!$state) $state = array();

		if ($task == 'set') {
			$state [$k] = $v;
		} else if ($task == 'get') {
			if (array_key_exists($k, $state)) {
				return $state[$k];
			} else {
				$null = null;
				return $null;
			}
		} else {
			// TODO: err
		}
	}

	/**
	 * Fetch all messages and remove from queue.
	 */
	public static function get_msgs() {
		$ret = array();
		if (!empty($_SESSION['app-msgs'])) {
			foreach ($_SESSION['app-msgs'] as $msg_type => $msgs) {
				$ret[$msg_type] = $msgs;
			}
			$_SESSION['app-msgs'] = array();
		}
		return $ret;
	}

	/**
	 * Add message to app message queue.
	 * @see show_msgs
	 */
	public static function add_error($msg = '') {
		self::_add_msg($msg, 'err');
	}
	public static function add_msg($msg = '') {
		self::_add_msg($msg, 'msg');
	}
	public static function _add_msg($msg = '', $type = 'msg') {
		if ($msg) {
			$_SESSION['app-msgs'][$type][] = $msg;
		}
	}

	public static function redirect($url, $msg = '') {
		if ($msg) {
			self::add_msg($msg);
		}

		if (!headers_sent()) {
			header('HTTP/1.1 303 See Other');
			header('Location: '.$url);
		} else {
			echo'<script type="text/javascript">'."
window.location.href='{$url}';
			".'</script>';
			echo "\n".'<noscript>';
			echo "\n".'<meta http-equiv="refresh" content="0;url='.$url.'" />';
			echo "\n".'</noscript>';
			echo'<p>'.'<a href="'.$url.'">'."dalej".'</a>'.'</p>';
		}
		exit;
	}

	public static function is_ajax_request() {
		if (array_key_exists('X_REQUESTED_WITH', $_SERVER)) {
			$index = 'X_REQUESTED_WITH';
		}
		else {
			$index = 'HTTP_X_REQUESTED_WITH';
		}
		$is_xml_http_request = array_key_exists($index, $_SERVER) && $_SERVER[$index] == 'XMLHttpRequest';
		return $is_xml_http_request;
	}

}