/**
 * On-Air 스크립트를 출력하기 위한 함수
 */
// global
var _onair_timer = null;
var _onair_roller = null;

// 주기적으로 스크립트를 재호출하는 타이머를 작동시킨다.
function fnStartOnairTimer(type) {
	clearTimeout(_onair_timer); // clear timer
	if (_onair_roller)
		_onair_roller.stop(); // stop roller
	fnLoadOnairData2(type); // ONAir 스크립트 호출
	_onair_timer = setTimeout("fnStartOnairTimer('" + type + "')", 30000); // timer-on : 30s
}

// 스크립트 데이터 load
function fnLoadOnairData(type) {
	var url = "/app/actions/FragmentAction?cmd=getOnAirXML";
	var params = "&type=" + type;
	var loader = new net.ContentLoader(url, fnParseXML, fnOnAsyncCallError, "POST", params);
}

//스크립트 데이터 load
function fnLoadOnairData2(type) {
	var url = "/app/actions/FragmentAction?cmd=getOnAirXML2";
	var params = "&type=" + type;
	var loader = new net.ContentLoader(url, fnParseXML, fnOnAsyncCallError, "POST", params);
}
// 호출성공시 콜백되는 함수
function fnParseXML() {
	var doc = this.req.responseXML;

	if (!doc)
		return;

	// 프로그램, 문구 노출
	var layer = document.getElementById("onair_program");
	layer.innerHTML = doc.getElementsByTagName("ONAIR_HTML")[0].firstChild.nodeValue
	
	if (layer.getElementsByTagName("div").length > 1) {
		// 노출될 프로그램이 2개 이상이면 롤링한다.
		_onair_roller = new js_rolling(layer);
		_onair_roller.set_direction(1);
		_onair_roller.move_gap = 1;
		_onair_roller.time_dealy = 3;
		_onair_roller.time_dealy_pause = 5000;
		_onair_roller.start();
	}
	
	// 채널 아이콘 노출
	layer = document.getElementById("onair_channel");
	layer.innerHTML = doc.getElementsByTagName("CHANNEL_HTML")[0].firstChild.nodeValue;
}

// ajax 호출 오류
function fnOnAsyncCallError() {
	
}

/************************************************************************************************************************************
 * roller
 ************************************************************************************************************************************/
var js_rolling = function(this_s){
// 시간단위는 ms로 1000이 1초
if(this_s.nodeType==1){
 this.this_s = this_s;
}else{
 this.this_s = document.getElementById(this_s);
}
this.is_rolling = false;
this.direction = 1; //1:top, 2:right, 3:bottom, 4:left (시계방향) // 1번과 4번만 됨
this.children = null;
this.move_gap = 1; //움직이는 픽셀단위
this.time_dealy = 100; //움직이는 타임딜레이
this.time_dealy_pause = 1000;//하나의 대상이 새로 시작할 때 멈추는 시간, 0 이면 적용 안함
this.time_timer=null;
this.time_timer_pause=null;
this.mouseover=false;
this.init();
this.set_direction(this.direction);
}
js_rolling.prototype.init = function(){
this.this_s.style.position='relative';
this.this_s.style.overflow='hidden';
var children = this.this_s.childNodes;
for(var i=(children.length-1);0<=i;i--){
 if(children[i].nodeType==1){
  children[i].style.position='relative';
 }else{
  this.this_s.removeChild(children[i]);
 }
}
var this_s=this;
this.this_s.onmouseover=function(){
 this_s.mouseover=true;
 if(!this_s.time_timer_pause){
  this_s.pause();
 }
}
this.this_s.onmouseout=function(){
 this_s.mouseover=false;
 if(!this_s.time_timer_pause){
  this_s.resume();
 }
} 
}
js_rolling.prototype.set_direction = function(direction){
this.direction=direction;
if(this.direction==2 ||this.direction==4){
 this.this_s.style.whiteSpace='nowrap';
}else{
 this.this_s.style.whiteSpace='normal';
}
var children = this.this_s.childNodes;
for(var i=(children.length-1);0<=i;i--){
  if(this.direction==1){
   children[i].style.display='block';
  }else if(this.direction==2){
   children[i].style.textlign='right';
   children[i].style.display='inline';
  }else if(this.direction==3){
   children[i].style.display='block';
  }else if(this.direction==4){
   children[i].style.display='inline';
  }
}
this.init_element_children(); 
}
js_rolling.prototype.init_element_children = function(){
var children = this.this_s.childNodes;
this.children = children;
for(var i=(children.length-1);0<=i;i--){
  if(this.direction==1){
   children[i].style.top='0px';
  }else if(this.direction==2){
   children[i].style.left='-'+this.this_s.firstChild.offsetWidth+'px';
  }else if(this.direction==3){
   children[i].style.top='-'+this.this_s.firstChild.offsetHeight+'px';
  }else if(this.direction==4){
   children[i].style.left='0px';
  }
}
}
js_rolling.prototype.act_move_up = function(){
for(var i = 0,m=this.children.length;i<m;i++){
 var child = this.children[i];
 child.style.top=(parseInt(child.style.top)-this.move_gap)+'px';
}
if((this.children[0].offsetHeight+parseInt(this.children[0].style.top))<=0){
 this.this_s.appendChild(this.children[0]);
 this.init_element_children();
 this.pause_act();  
}
}
js_rolling.prototype.move_up = function(){
if(this.direction!=1&&this.direction!=3){return false;}
this.this_s.appendChild(this.children[0]);
this.init_element_children();
this.pause_act(); 
}
js_rolling.prototype.act_move_down = function(){
for(var i = 0,m=this.children.length;i<m;i++){
 var child = this.children[i];
 child.style.top=(parseInt(child.style.top)+this.move_gap)+'px';
}
if(parseInt(this.children[0].style.top)>=0){
 this.this_s.insertBefore(this.this_s.lastChild,this.this_s.firstChild);
 this.init_element_children();
 this.pause_act(); 
}
}
js_rolling.prototype.move_down = function(){
if(this.direction!=1&&this.direction!=3){return false;} 
this.this_s.insertBefore(this.this_s.lastChild,this.this_s.firstChild);
this.init_element_children();
this.pause_act();
}
js_rolling.prototype.act_move_left = function(){
for(var i = 0,m=this.children.length;i<m;i++){
 var child = this.children[i];
 child.style.left=(parseInt(child.style.left)-this.move_gap)+'px';
}
if((this.children[0].offsetWidth+parseInt(this.children[0].style.left))<=0){
 this.this_s.appendChild(this.this_s.firstChild);
 this.init_element_children();
 this.pause_act();  
}
}
js_rolling.prototype.move_left = function(){
if(this.direction!=2&&this.direction!=4){return false;}  
this.this_s.appendChild(this.this_s.firstChild);
this.init_element_children();
this.pause_act();  
}
js_rolling.prototype.act_move_right = function(){
for(var i = 0,m=this.children.length;i<m;i++){
 var child = this.children[i];
 child.style.left=(parseInt(child.style.left)+this.move_gap)+'px';
}

if(parseInt(this.this_s.lastChild.style.left)>=0){
 this.this_s.insertBefore(this.this_s.lastChild,this.this_s.firstChild);
 this.init_element_children();
 this.pause_act();  
}
}
js_rolling.prototype.move_right = function(){
if(this.direction!=2&&this.direction!=4){return false;}   
this.this_s.insertBefore(this.this_s.lastChild,this.this_s.firstChild);
this.init_element_children();
this.pause_act();
}
js_rolling.prototype.start = function(){ //롤링 시작
var this_s = this;
this.stop();
this.is_rolling = true;
var act = function(){
 if(this_s.is_rolling){
  if(this_s.direction==1){this_s.act_move_up();}
  else if(this_s.direction==2){this_s.act_move_right();}
  else if(this_s.direction==3){this_s.act_move_down();}
  else if(this_s.direction==4){this_s.act_move_left();}
 }
}
this.time_timer = setInterval(act,this.time_dealy);
}
js_rolling.prototype.pause_act = function(){ //일시 동작
if(this.time_dealy_pause){
 var this_s = this;
 var act = function(){this_s.resume();this_s.time_timer_pause=null;}
 if(this.time_timer_pause){clearTimeout(this.time_timer_pause);}
 this.time_timer_pause = setTimeout(act,this.time_dealy_pause);
 this.pause();
}
}
js_rolling.prototype.pause = function(){ //일시 멈춤
this.is_rolling = false;
}
js_rolling.prototype.resume = function(){ //일시 멈춤 해제
if(!this.mouseover){
 this.is_rolling = true;
}
}
js_rolling.prototype.stop = function(){ //롤링을 끝냄
this.is_rolling = false;
if(this.time_timer){
 clearInterval(this.time_timer);
}
this.time_timer = null
}