/*
 * Thickbox 2.1 - One Box To Rule Them All.
 * By Cody Lindley (http://www.codylindley.com)
 * Copyright (c) 2006 cody lindley
 * Licensed under the MIT License:
 *   http://www.opensource.org/licenses/mit-license.php
 * Thickbox is built on top of the very light weight jQuery library.
 * Modified for SPIP <www.spip.net> by Fil <fil@rezo.net>:
 * Modified by BoOz@rezo.net
 * - added recognition of images based on a.type
 * - added an image gallery
 * - added keyboard navigation ('n'ext (->), 'p'revious (<-), 'q'uit (esc))
 * - customize path to the css and wheel image
 * - default size for thickbox links that have no width x height indicated ??
 * - don't load css when not needed ??
 * - TODO: don't load js when not needed!!
 
 */
 
 
//on page load call TB_init
//
// init
//
var imageArray = [];
var FULL_S = false;
if(typeof TB_chemin_css == 'undefined') { TB_chemin_css = 'thickbox.css'; }
if(typeof TB_chemin_animation == 'undefined') { TB_chemin_animation = 'circle_animation.gif'; }
//add thickbox to href elements that have a class of .thickbox

function TB_image() {
	var t = this.title || this.name ;
	TB_show(t,this.href,'image');
	return false;
}

//add thickbox to href elements that have a class of .thickbox
function TB_init(root) {
	$("a.thickbox",root).each(
		function(i) {
			if (
				(this.type && this.type.match(/^image[\/](jpeg|gif|png)$/i))
				|| (this.href && this.href.match(/\.(jpeg|jpg|png|gif)$/i))
			) {
				this.onclick = TB_image;

				// we store image links in an array (for a gallery)
				imageArray.push ([
					this.href,
					this.title || this.name
				]);

			}

		}
	);
}


function TB_show(caption, url) {//function called when the user clicks on a thickbox link
  try {
    if (document.getElementById("TB_HideSelect") == null) {
    $("body").append("<iframe id='TB_HideSelect'></iframe><div id='TB_overlay'></div><div id='TB_window'></div>");
    $("#TB_overlay").click(TB_remove);
    }
    
    if(caption==null){caption=""};
    
    if(!FULL_S){
    $(window).scroll(TB_position);
    }    
    
    TB_overlaySize();
    
    $("body").append("<div id='TB_load'><img src='"+TB_chemin_animation+"' /></div>");
    TB_load_position();
    
     if(url.indexOf("?")!==-1){ //If there is a query string involved
      var baseURL = url.substr(0, url.indexOf("?"));
     }else{ 
         var baseURL = url;
     }
     var urlString = /\.jpg|\.jpeg|\.png|\.gif|\.bmp/g;
     var urlType = baseURL.toLowerCase().match(urlString);
    
    if(urlType == '.jpg' || urlType == '.jpeg' || urlType == '.png' || urlType == '.gif' || urlType == '.bmp'){//code to show images
        
      TB_PrevCaption = "";
      TB_PrevURL = "";
      TB_PrevHTML = "";
      TB_NextCaption = "";
      TB_NextURL = "";
      TB_NextHTML = "";
      TB_imageCount = "";
      TB_Full_Size = "";
      TB_FoundURL = false;
      if(imageArray.length > 0){
        TB_TempArray = imageArray ;
        for (TB_Counter = 0; ((TB_Counter < TB_TempArray.length) && (TB_NextHTML == "")); TB_Counter++) {
          var urlTypeTemp = TB_TempArray[TB_Counter][0].toLowerCase().match(urlString);
            if (!(TB_TempArray[TB_Counter][0] == url)) {            
              if (TB_FoundURL) {
                TB_NextCaption = TB_TempArray[TB_Counter][1];
                TB_NextURL = TB_TempArray[TB_Counter][0];
                TB_NextHTML = "<span id='TB_next'>&nbsp;&nbsp;<a href='#'><strong> &gt;</strong></a></span>";
              } else {
                TB_PrevCaption = TB_TempArray[TB_Counter][1];
                TB_PrevURL = TB_TempArray[TB_Counter][0];
                TB_PrevHTML = "<span id='TB_prev'>&nbsp;&nbsp;<a href='#'><strong>&lt; </strong></a></span>";
              }
            } else {
              TB_FoundURL = true;
              TB_imageCount =  (TB_Counter + 1) +" / "+ (TB_TempArray.length);                      
            }
        }
      }
      imgPreloader = new Image();
      imgPreloader.onload = function(){    
      imgPreloader.onload = null;
        
      // Resizing large images - orginal by Christian Montoya edited by me.
      TB_Big_Image = false ;
      var pagesize = TB_getPageSize();
      var x = pagesize[0] - 150;
      var y = pagesize[1] - 150;
      var imageWidth = imgPreloader.width;
      var imageHeight = imgPreloader.height;
      IMAGE_WIDTH = imageWidth ;
	  IMAGE_HEIGHT = imageHeight ;
     
      if (imageWidth > x) {
        TB_Big_Image = true ;
        imageHeight = imageHeight * (x / imageWidth); 
        imageWidth = x; 
         if (imageHeight > y) { 
          TB_Big_Image = true ;
          imageWidth = imageWidth * (y / imageHeight); 
          imageHeight = y; 
        }
      } else if (imageHeight > y) { 
        TB_Big_Image = true ;
        imageWidth = imageWidth * (y / imageHeight); 
        imageHeight = y; 
        if (imageWidth > x) { 
          TB_Big_Image = true ;
          imageHeight = imageHeight * (x / imageWidth); 
          imageWidth = x;
        }
      }
      // End Resizing
      
      if (TB_Big_Image) {
        TB_Full_Size = "<span id='TB_Full'>&nbsp;&nbsp;<a href='#'><strong>[Zoom]</strong></a></span>";
      }
      
      TB_WIDTH = imageWidth + 20;
      TB_HEIGHT = imageHeight + 20;    
      
      	$("#TB_window").append("<a href='' id='TB_ImageOff'><img id='TB_Image' src='"+url+"' width='"+imageWidth+"' height='"+imageHeight+"' alt='"+caption+"'/></a>" + "<div id='TB_legend' style='background-color:#fff'><div id='TB_closeWindow'><a href='#' id='TB_closeWindowButton'><img src='"+TB_chemin_close+"' /></a></div><div id='TB_caption'>"+caption+"</div><div id='TB_secondLine'>" + TB_imageCount + TB_Full_Size + TB_PrevHTML + TB_NextHTML + "</div></div>"); 
			
			//TB_position() ;

			$("#TB_closeWindowButton").click(TB_remove);		
			$("#TB_load").remove();
			$("#TB_window").fadeIn("slow");
			//setTimeout('$("#TB_legend").slideDown(800);',1600);      
      
      
      
      if (!(TB_PrevHTML == "")) {
        function goPrev(){
          FULL_S = false ;
          if($(document).unbind('click',goPrev)){$(document).unbind('click',goPrev)};
          $("#TB_window").remove();
          $("body").append("<div id='TB_window'></div>");
          TB_show(TB_PrevCaption, TB_PrevURL);
          return false;  
        }
        $("#TB_prev").click(goPrev);
      }
      
      if (!(TB_NextHTML == "")) {    
        function goNext(){
          FULL_S = false ;
          $("#TB_window").remove();
          $("body").append("<div id='TB_window'></div>");
          TB_show(TB_NextCaption, TB_NextURL); 
          return false;  
        }
        $("#TB_next").click(goNext);
        
      }
      
      
      if (!(TB_Full_Size == "")) {    
        function fullSize(){
 		var arrayPageScroll = TB_getPageScrollTop();  
		var pagesize = TB_getPageSize();  

 		if(!FULL_S){
 		FULL_S = true ;
		TB_TOP = arrayPageScroll[1];
		if( (arrayPageScroll[0] + (pagesize[0] - IMAGE_WIDTH)/2) > 0 ){
		TB_LEFT = arrayPageScroll[0] + (pagesize[0] - IMAGE_WIDTH)/2 ;
		}else{
		TB_LEFT = 50 ;
		}
		
		$("#TB_window").animate({top:TB_TOP,left:TB_LEFT,width:(IMAGE_WIDTH+20),height:(IMAGE_HEIGHT+20)},1500);         
 		$("#TB_Image").animate({top:20,left:20,width:IMAGE_WIDTH,height:IMAGE_HEIGHT},1500, TB_recadre);         
      

       	}else{
       	FULL_S = false ;
       
       	$("#TB_window").animate({top: (arrayPageScroll[1] + (pagesize[1]-TB_HEIGHT)/2),left:(arrayPageScroll[0] + (pagesize[0] - TB_WIDTH)/2), width:TB_WIDTH,height:TB_HEIGHT},1500);         
 		$("#TB_Image").animate({top:20,left:20,width:(TB_WIDTH - 20),height:(TB_HEIGHT - 20)},1500,TB_recadre);         
       	}
       
        return false;  
        }
        $("#TB_Full").click(fullSize);
        
      }
      
      
      if(!(TB_NextHTML == "")){
      	 $("#TB_ImageOff").click(goNext);
	 	 }else{
      	 $("#TB_ImageOff").click(TB_remove);
      }
      
      document.onkeydown = function(e){   
        if (e == null) { // ie
          keycode = event.keyCode;
        } else { // mozilla
          keycode = e.which;
        }
        if(keycode == 27 | keycode == 67 | keycode == 70){ // close
          TB_remove();
        } else if(keycode == 190 | keycode == 39){ // display previous image <-
          if(!(TB_NextHTML == "")){
          document.onkeydown = "";
          goNext();
          }
        } else if(keycode == 188  | keycode == 37){ // display next image ->
          if(!(TB_PrevHTML == "")){
          document.onkeydown = "";
          goPrev();
          }
        }  
      }
      
      TB_position() ;
 
      $("#TB_load").remove();
      $("#TB_window").css({display:"block"}); //for safari using css instead of show
      }
    
      imgPreloader.src = url;
    }else{//code to show html pages
      
      var queryString = url.replace(/^[^\?]+\??/,'');
      var params = TB_parseQuery( queryString );
      
      TB_WIDTH = (params['width']*1) + 30;
      TB_HEIGHT = (params['height']*1) + 40;
      ajaxContentW = TB_WIDTH - 30;
      ajaxContentH = TB_HEIGHT - 45;
      
      if(url.indexOf('TB_iframe') != -1){        
          urlNoQuery = url.split('TB_');    
          $("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton' title='Close'>close</a></div></div><iframe frameborder='0' hspace='0' src='"+urlNoQuery[0]+"' id='TB_iframeContent' name='TB_iframeContent' style='width:"+(ajaxContentW + 29)+"px;height:"+(ajaxContentH + 17)+"px;' onload='TB_showIframe()'> </iframe>");
        }else{
          $("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton'>close</a></div></div><div id='TB_ajaxContent' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px;'></div>");
      }
          
      $("#TB_closeWindowButton").click(TB_remove);
      
        if(url.indexOf('TB_inline') != -1){  
          $("#TB_ajaxContent").html($('#' + params['inlineId']).html());
          TB_position();
          $("#TB_load").remove();
          $("#TB_window").css({display:"block"}); 
        }else if(url.indexOf('TB_iframe') != -1){
          TB_position();
          if(frames['TB_iframeContent'] == undefined){//be nice to safari
            $("#TB_load").remove();
            $("#TB_window").css({display:"block"});
            $(document).keyup( function(e){ var key = e.keyCode; if(key == 27){TB_remove()} });
          }
        }else{
          $("#TB_ajaxContent").load(url, function(){
            TB_position();
            $("#TB_load").remove();
            $("#TB_window").css({display:"block"}); 
          });
        }
      
    }
    
    $(window).resize(TB_position);
    
    document.onkeyup = function(e){   
      if (e == null) { // ie
        keycode = event.keyCode;
      } else { // mozilla
        keycode = e.which;
      }
      if(keycode == 27){ // close
        TB_remove();
      }  
    }
    
  } catch(e) {
    alert( e );
  }
}
//helper functions below
function TB_showIframe(){
  $("#TB_load").remove();
  $("#TB_window").css({display:"block"});
}
function TB_remove() {
   $("#TB_imageOff").unbind('click');
  $("#TB_overlay").unbind('click');
  $("#TB_closeWindowButton").unbind('click');
  $("#TB_window").fadeOut("fast",function(){$('#TB_window,#TB_overlay,#TB_HideSelect').remove();});
  $("#TB_load").remove();
  return false;
}
function TB_position() {
  var pagesize = TB_getPageSize();  
  var arrayPageScroll = TB_getPageScrollTop();  
 if(!FULL_S){
  $("#TB_window").css({width:TB_WIDTH+"px",left: (arrayPageScroll[0] + (pagesize[0] - TB_WIDTH)/2)+"px", top: (arrayPageScroll[1] + (pagesize[1]-TB_HEIGHT)/2)+"px" });
  }    

}

function TB_overlaySize(){
  if (window.innerHeight && window.scrollMaxY || window.innerWidth && window.scrollMaxX) {  
    yScroll = window.innerHeight + window.scrollMaxY;
    xScroll = window.innerWidth + window.scrollMaxX;
    var deff = document.documentElement;
    var wff = (deff&&deff.clientWidth) || document.body.clientWidth || window.innerWidth || self.innerWidth;
    var hff = (deff&&deff.clientHeight) || document.body.clientHeight || window.innerHeight || self.innerHeight;
    xScroll -= (window.innerWidth - wff);
    yScroll -= (window.innerHeight - hff);
  } else if (document.body.scrollHeight > document.body.offsetHeight || document.body.scrollWidth > document.body.offsetWidth){ // all but Explorer Mac
    yScroll = document.body.scrollHeight;
    xScroll = document.body.scrollWidth;
  } else { // Explorer Mac...would also work in Explorer 6 Strict, Mozilla and Safari
    yScroll = document.body.offsetHeight;
    xScroll = document.body.offsetWidth;
    }
  $("#TB_overlay").css({"height":yScroll +"px", "width":xScroll +"px"});
  $("#TB_HideSelect").css({"height":yScroll +"px","width":xScroll +"px"});
}
function TB_load_position() {
  var pagesize = TB_getPageSize();
  var arrayPageScroll = TB_getPageScrollTop();
  $("#TB_load")
  .css({left: (arrayPageScroll[0] + (pagesize[0] - 100)/2)+"px", top: (arrayPageScroll[1] + ((pagesize[1]-100)/2))+"px" })
  .css({display:"block"});
}
function TB_parseQuery ( query ) {
   var Params = new Object ();
   if ( ! query ) return Params; // return empty object
   var Pairs = query.split(/[;&]/);
   for ( var i = 0; i < Pairs.length; i++ ) {
      var KeyVal = Pairs[i].split('=');
      if ( ! KeyVal || KeyVal.length != 2 ) continue;
      var key = unescape( KeyVal[0] );
      var val = unescape( KeyVal[1] );
      val = val.replace(/\+/g, ' ');
      Params[key] = val;
   }
   return Params;
}
function TB_getPageScrollTop(){
  var yScrolltop;
  var xScrollleft;
  if (self.pageYOffset || self.pageXOffset) {
    yScrolltop = self.pageYOffset;
    xScrollleft = self.pageXOffset;
  } else if (document.documentElement && document.documentElement.scrollTop || document.documentElement.scrollLeft ){   // Explorer 6 Strict
    yScrolltop = document.documentElement.scrollTop;
    xScrollleft = document.documentElement.scrollLeft;
  } else if (document.body) {// all other Explorers
    yScrolltop = document.body.scrollTop;
    xScrollleft = document.body.scrollLeft;
  }
  arrayPageScroll = new Array(xScrollleft,yScrolltop) 
  return arrayPageScroll;
}
function TB_getPageSize(){
  var de = document.documentElement;
  var w = window.innerWidth || self.innerWidth || (de&&de.clientWidth) || document.body.clientWidth;
  var h = window.innerHeight || self.innerHeight || (de&&de.clientHeight) || document.body.clientHeight
  arrayPageSize = new Array(w,h) 
  return arrayPageSize;
}
function TB_recadre(){
TB_overlaySize();
TB_position();
}