/*!
 * QUVIC YouTube Video Browser JavaScript Library v1.5
 * http://www.quvic.com/
 *
 * Copyright 2010-2011, TYZEN
 * Dual licensed under the MIT or GPL Version 2 licenses.
 * http://www.tyzen.net
 *
 * Includes TEXTTUBE
 * http://www.texttube.com
 * Copyright 2010-2011, TEXTTUBE
 * Released under the MIT, BSD, and GPL Licenses.
 *
 * Date: Sun February 12 2012
 */

var quvic = {};

quvic.MAX_RESULTS_LIST = 10;


quvic.THUMBNAIL_WIDTH = 124;

quvic.THUMBNAIL_HEIGHT = 93;


quvic.PLAYER_WIDESCREEN_WIDTH = 720;

quvic.PLAYER_STANDARD_WIDTH = 540;


quvic.PLAYER_HEIGHT = 405;


quvic.VIDEO_LIST_CSS_CLASS = 'videolist';

quvic.PREVIOUS_PAGE_BUTTON = 'previousPageButton';

quvic.NEXT_PAGE_BUTTON = 'nextPageButton';

quvic.STANDARD_FEED_URL_TOP_RATED = 
    'http://gdata.youtube.com/feeds/api/standardfeeds/top_rated?';

quvic.STANDARD_FEED_URL_MOST_VIEWED = 
    'http://gdata.youtube.com/feeds/api/standardfeeds/most_viewed?';

quvic.STANDARD_FEED_URL_MOST_POPULAR = 
    'http://gdata.youtube.com/feeds/api/standardfeeds/most_popular?';

quvic.STANDARD_FEED_URL_RECENTLY_FEATURED = 
    'http://gdata.youtube.com/feeds/api/standardfeeds/recently_featured?';

quvic.VIDEO_FEED_URL = 
    'http://gdata.youtube.com/feeds/api/videos?';

quvic.QUERY_URL_MAP = {
  'top_rated' : quvic.STANDARD_FEED_URL_TOP_RATED,
 
  'most_viewed' : quvic.STANDARD_FEED_URL_MOST_VIEWED,
 
  'most_popular' : quvic.STANDARD_FEED_URL_MOST_POPULAR,
  
  'recently_featured' : quvic.STANDARD_FEED_URL_RECENTLY_FEATURED,
 
  'search' : quvic.VIDEO_FEED_URL
};

quvic.nextPage = 2;

quvic.previousPage = 0;

quvic.previousSearchTerm = '';

quvic.previousQueryType = 'search';

quvic.jsonFeed_ = null;

quvic.appendScriptTag = function(scriptSrc, scriptId, scriptCallback) {
 
  var oldScriptTag = document.getElementById(scriptId);
  if (oldScriptTag) {
    oldScriptTag.parentNode.removeChild(oldScriptTag);
  }
  var script = document.createElement('script');
  script.setAttribute('src', 
      scriptSrc + '&v=2&alt=jsonc&callback=' + scriptCallback);
  script.setAttribute('id', scriptId);
  script.setAttribute('type', 'text/javascript');
  document.getElementsByTagName('head')[0].appendChild(script);
};

quvic.listVideos = function(queryType, searchTerm, page) {
  quvic.previousSearchTerm = searchTerm; 
  quvic.previousQueryType = queryType; 
  var queryUrl = quvic.QUERY_URL_MAP[queryType];
  if (queryUrl) {
    queryUrl += 'max-results=' + quvic.MAX_RESULTS_LIST +
        '&format=5&start-index=' + (((page - 1) * quvic.MAX_RESULTS_LIST) + 1);
    if (searchTerm != '') {
      queryUrl += '&q=' + encodeURI(searchTerm);
    }
    quvic.appendScriptTag(queryUrl, 
                         'searchResultsVideoListScript', 
                         'quvic.listVideosCallback');
    quvic.updateNavigation(page);
	
  } else {
    alert('Unknown feed type specified');
  }
};

quvic.PresentVideos = function(queryType, searchTerm, page) {
  quvic.previousSearchTerm = searchTerm; 
  quvic.previousQueryType = queryType; 
  var queryUrl = quvic.QUERY_URL_MAP[queryType];
  if (queryUrl) {
    queryUrl += 'max-results=' + quvic.MAX_RESULTS_LIST +
        '&format=5&start-index=' + (((page - 1) * quvic.MAX_RESULTS_LIST) + 1);
    if (searchTerm != '') {
      queryUrl += '&q=' + encodeURI(searchTerm);
    }
    quvic.appendScriptTag(queryUrl, 
                         'searchResultsVideoListScript', 
                         'quvic.listVideosCall');
    quvic.updateNavigation(page);
   }
};

quvic.listVideosCall = function(json) {
  quvic.jsonFeed_ = json.data;
  var div = document.getElementById(quvic.VIDEO_LIST_CSS_CLASS);
var html = ['<LABEL>'];
  
  var totalitems = number_format(json.data.totalItems);
  var items = eval(json.data.itemsPerPage);
  var start = eval(json.data.startIndex);
  var end = eval(start + items - 1);
 
if ( totalitems <= end ) {
  
  document.getElementById(quvic.NEXT_PAGE_BUTTON).disabled = true;
}

  html.push(''+start+' - '+end+' of '+totalitems+' ');
  html.push('</LABEL>');
  document.getElementById('videosinfo').innerHTML = html.join('');

  var items = json.data.items || [];
  var html = ['<dl class="videos">'];
  for (var i = 0; i < items.length; i++) {
    var title = json.data.items[i].title;
    var thumbnailUrl = json.data.items[i].thumbnail.sqDefault;
    var videoID = json.data.items[i].id;
    var duration = json.data.items[i].duration;

    html.push('<dt><span class="video_thumb thumbbox"><a href="javascript:playVideo(\''+videoID+'\',\''+addslashes(title)+'\')">');
	html.push('<img src="',thumbnailUrl,'" width="',quvic.THUMBNAIL_WIDTH,'" height="',quvic.THUMBNAIL_HEIGHT,'" onmouseout="mouseOutImage(this)" onmouseover="mousOverImage(this,\'',videoID,'\',1)"></a>');
	html.push('<span class="duration">',getDurationTime(duration),'</span>');
	html.push('</span>');
	html.push('<br/>', title.substr(0,37), '</dt>');}
	html.push('</dl><br style="clear: left;"/>');
   
    document.getElementById(quvic.VIDEO_LIST_CSS_CLASS).innerHTML = html.join('');
 
  if (items.length > 0) {
    loadVideo(json.data.items[0].id);
  }
};

function loadVideo(videoID) {
  swfobject.embedSWF("http://www.youtube.com/v/" + videoID + "?version=3&enablejsapi=1&playerapiid=ytplayer&fs=1&autohide=1",
  'player', quvic.PLAYER_WIDESCREEN_WIDTH, quvic.PLAYER_HEIGHT, '9.0.0', false, false, {allowScriptAccess: 'always',allowfullscreen: 'true'});
  }

quvic.listVideosCallback = function(json) {
 quvic.jsonFeed_ = json.data;
  var div = document.getElementById(quvic.VIDEO_LIST_CSS_CLASS);

  var html = ['<LABEL>'];
  
  var totalitems = number_format(json.data.totalItems);
  var items = eval(json.data.itemsPerPage);
  var start = eval(json.data.startIndex);
  var end = eval(start + items - 1);
 
if ( totalitems <= end ) {
  
  document.getElementById(quvic.NEXT_PAGE_BUTTON).disabled = true;
}

  html.push(''+start+' - '+end+' of '+totalitems+' ');
  html.push('</LABEL>');
  document.getElementById('videosinfo').innerHTML = html.join('');



  while (div.childNodes.length >= 1) {
    div.removeChild(div.firstChild);
   
    }
 
  var items = json.data.items || [];
  var html = ['<dl class="videos">'];
  for (var i = 0; i < items.length; i++) {
    var title = json.data.items[i].title;
    var thumbnailUrl = json.data.items[i].thumbnail.sqDefault;
    var videoID = json.data.items[i].id;
    var duration = json.data.items[i].duration;

    html.push('<dt><span class="video_thumb thumbbox"><a href="javascript:playVideo(\''+videoID+'\',\''+addslashes(title)+'\')">');
	html.push('<img src="',thumbnailUrl,'" width="',quvic.THUMBNAIL_WIDTH,'" height="',quvic.THUMBNAIL_HEIGHT,'" onmouseout="mouseOutImage(this)" onmouseover="mousOverImage(this,\'',videoID,'\',1)"></a>');
	html.push('<span class="duration">',getDurationTime(duration),'</span>');
	html.push('</span>');
	html.push('<br/>', title.substr(0,37), '</dt>');}
    html.push('</dl><br style="clear: left;"/>');

    document.getElementById(quvic.VIDEO_LIST_CSS_CLASS).innerHTML = html.join('');
};
 
quvic.updateNavigation = function(page) {
  quvic.nextPage = page + 1;
  quvic.previousPage = page - 1;
  document.getElementById(quvic.NEXT_PAGE_BUTTON).style.display = 'inline';
  document.getElementById(quvic.PREVIOUS_PAGE_BUTTON).style.display = 'inline';
  if (quvic.previousPage < 1) {
    document.getElementById(quvic.PREVIOUS_PAGE_BUTTON).disabled = true;
  } else {
    document.getElementById(quvic.PREVIOUS_PAGE_BUTTON).disabled = false;
  }
  document.getElementById(quvic.NEXT_PAGE_BUTTON).disabled = false;
};

function onPlayerError(errorCode) {
        alert("An error occured of type:" + errorCode);
      }
 

function onYouTubePlayerReady(playerId) {
        ytplayer = document.getElementById("player");
        ytplayer.addEventListener("onError", "onPlayerError");
      }


function playVideo(videoID,title){
     if(document.title)
		document.title = title;
    
	ytplayer.loadVideoById(videoID);
}

function HDPlayer() {
        resizePlayer(quvic.PLAYER_WIDESCREEN_WIDTH, quvic.PLAYER_HEIGHT);
       document.getElementById("Standard").disabled = false;
       document.getElementById("Widescreen").disabled = true;
      }

function HQPlayer() {
        resizePlayer(quvic.PLAYER_STANDARD_WIDTH, quvic.PLAYER_HEIGHT);
         document.getElementById("Widescreen").disabled = false;
         document.getElementById("Standard").disabled = true;
      }

function resizePlayer(width, height) {
        var playerObj = document.getElementById("player");
        playerObj.height = height;
        playerObj.width = width;
      }

function addslashes(str) {
	str=str.replace(/\'/g,'\\\'');
	str=str.replace(/\"/g,'');
	return str;
}

function stripslashes(str) {
	str=str.replace(/\\'/g,'\'');
	return str;
}

var imname;
var timer;
function mousOverImage(name,id,nr){
	if(name)
		imname = name;
	imname.src = "http://img.youtube.com/vi/"+id+"/"+nr+".jpg";
	imname.style.border = 	'3px solid #3B5998'; /*! Thumnail Hoover Color*/
	nr++;
	if(nr > 3)
		nr = 1;
	timer =  setTimeout("mousOverImage(false,'"+id+"',"+nr+");",1000);
}
function mouseOutImage(name){
	if(name)
		imname = name;
	imname.style.border = 	'3px solid #fff'; /*! Thumnail Back Ground Color important quvic.css-> line no. 46*/
	if(timer)
		clearTimeout(timer);
}
function getDurationTime(sec)
{
	var sec_div = ''+((sec%60) | 0);
	if(sec_div.length == 1)
		sec_div = '0'+sec_div;
	return ((sec/60) | 0)+':'+sec_div;
}
 
function number_format(numstr) {
  var numstr = String(numstr);
  var re0 = /(\d+)(\d{3})($|\..*)/;
  if (re0.test(numstr))
    return numstr.replace(
      re0,
      function(str,p1,p2,p3) { return number_format(p1) + "," + p2 + p3; }
    );
  else
    return numstr;
}