/*
 * Thickbox 3 - One Box To Rule Them All.
 * By Cody Lindley (http://www.codylindley.com)
 * Copyright (c) 2007 cody lindley
 * Licensed under the MIT License: http://www.opensource.org/licenses/mit-license.php
 */

var tb_pathToImage = "images/loadingAnimation.gif";

/*!!!!!!!!!!!!!!!!! edit below this line at your own risk !!!!!!!!!!!!!!!!!!!!!!!*/

//on page load call tb_init
jQuery(document).ready(function(){
  tb_init('a.thickbox, area.thickbox, input.thickbox');//pass where to apply thickbox
  imgLoader = new Image();// preload image
  imgLoader.src = tb_pathToImage;
});

//add thickbox to href & area elements that have a class of .thickbox
function tb_init(domChunk){
  jQuery(domChunk).click(function(){
    var t = this.title || this.name || null;
    var a = this.href || this.alt;
    var g = this.rel || false;
    tb_show(t,a,g);
    this.blur();
    return false;
  });
}

function tb_show(caption, url, imageGroup, afterFunc) {//function called when the user clicks on a thickbox link

  try {
    if (typeof document.body.style.maxHeight === "undefined") {//if IE 6
      jQuery("body","html").css({height: "100%", width: "100%"});
      jQuery("html").css("overflow","hidden");
      if (document.getElementById("TB_HideSelect") === null) {//iframe to hide select elements in ie6
        jQuery("body").append("<iframe id='TB_HideSelect'></iframe><div id='TB_overlay'></div><div id='TB_window'></div>");
        jQuery("#TB_overlay").click(tb_remove);
      }
    }else{//all others
      if(document.getElementById("TB_overlay") === null){
        jQuery("body").append("<div id='TB_overlay'></div><div id='TB_window'>");
        jQuery("#TB_overlay").click(tb_remove);
      }
    }

    if(caption===null){caption="";}
    jQuery("body").append("<div id='TB_load'><img src='"+imgLoader.src+"' /></div>");//add loader to the page
    jQuery('#TB_load').show();//show loader

    var baseURL;
    if(url.indexOf("?")!==-1){ //ff there is a query string involved
      baseURL = url.substr(0, url.indexOf("?"));
    }else{
      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_FoundURL = false;
      if(imageGroup){
        TB_TempArray = jQuery("a[@rel="+imageGroup+"]").get();
        for (TB_Counter = 0; ((TB_Counter < TB_TempArray.length) && (TB_NextHTML === "")); TB_Counter++) {
          var urlTypeTemp = TB_TempArray[TB_Counter].href.toLowerCase().match(urlString);
          if (!(TB_TempArray[TB_Counter].href == url)) {
            if (TB_FoundURL) {
              TB_NextCaption = TB_TempArray[TB_Counter].title;
              TB_NextURL = TB_TempArray[TB_Counter].href;
              TB_NextHTML = "<span id='TB_next'>&nbsp;&nbsp;<a href='#'>Next &gt;</a></span>";
            } else {
              TB_PrevCaption = TB_TempArray[TB_Counter].title;
              TB_PrevURL = TB_TempArray[TB_Counter].href;
              TB_PrevHTML = "<span id='TB_prev'>&nbsp;&nbsp;<a href='#'>&lt; Prev</a></span>";
            }
          } else {
            TB_FoundURL = true;
            TB_imageCount = "Image " + (TB_Counter + 1) +" of "+ (TB_TempArray.length);
          }
        }
      }

      imgPreloader = new Image();
      imgPreloader.onload = function(){
        imgPreloader.onload = null;

        // Resizing large images - orginal by Christian Montoya edited by me.
        var pagesize = tb_getPageSize();
        var x = pagesize[0] - 150;
        var y = pagesize[1] - 150;
        var imageWidth = imgPreloader.width;
        var imageHeight = imgPreloader.height;
        if (imageWidth > x) {
          imageHeight = imageHeight * (x / imageWidth);
          imageWidth = x;
          if (imageHeight > y) {
            imageWidth = imageWidth * (y / imageHeight);
            imageHeight = y;
          }
        } else if (imageHeight > y) {
          imageWidth = imageWidth * (y / imageHeight);
          imageHeight = y;
          if (imageWidth > x) {
            imageHeight = imageHeight * (x / imageWidth);
            imageWidth = x;
          }
        }
        // End Resizing

        TB_WIDTH = imageWidth + 30;
        TB_HEIGHT = imageHeight + 60;
        jQuery("#TB_window").append("<a href='' id='TB_ImageOff' title='Close'><img id='TB_Image' src='"+url+"' width='"+imageWidth+"' height='"+imageHeight+"' alt='"+caption+"'/></a>" + "<div id='TB_caption'>"+caption+"<div id='TB_secondLine'>" + TB_imageCount + TB_PrevHTML + TB_NextHTML + "</div></div><div id='TB_closeWindow'><a href='#' id='TB_closeWindowButton' title='Close'>关闭</a> </div>");

        jQuery("#TB_closeWindowButton").click(tb_remove);

        if (!(TB_PrevHTML === "")) {
          function goPrev(){
            if(jQuery(document).unbind("click",goPrev)){jQuery(document).unbind("click",goPrev);}
            jQuery("#TB_window").remove();
            jQuery("body").append("<div id='TB_window'></div>");
            tb_show(TB_PrevCaption, TB_PrevURL, imageGroup);
            return false;
          }
          jQuery("#TB_prev").click(goPrev);
        }

        if (!(TB_NextHTML === "")) {
          function goNext(){
            jQuery("#TB_window").remove();
            jQuery("body").append("<div id='TB_window'></div>");
            tb_show(TB_NextCaption, TB_NextURL, imageGroup);
            return false;
          }
          jQuery("#TB_next").click(goNext);

        }

        document.onkeydown = function(e){
          if (e == null) { // ie
            keycode = event.keyCode;
          } else { // mozilla
            keycode = e.which;
          }
          if(keycode == 27){ // close
            tb_remove();
          } else if(keycode == 190){ // display previous image
            if(!(TB_NextHTML == "")){
              document.onkeydown = "";
              goNext();
            }
          } else if(keycode == 188){ // display next image
            if(!(TB_PrevHTML == "")){
              document.onkeydown = "";
              goPrev();
            }
          }
        };

        tb_position();
        jQuery("#TB_load").remove();
        jQuery("#TB_ImageOff").click(tb_remove);
        jQuery("#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 || 630; //defaults to 630 if no paramaters were added to URL
      TB_HEIGHT = (params['height']*1) + 40 || 440; //defaults to 440 if no paramaters were added to URL
      ajaxContentW = TB_WIDTH - 30;
      ajaxContentH = TB_HEIGHT - 45;

      if(url.indexOf('TB_iframe') != -1){
        urlNoQuery = url.split('TB_');
        jQuery("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton' title='Close'>关闭</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{
        if(jQuery("#TB_window").css("display") != "block"){
          if(params['modal'] != "true"){
            jQuery("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>"+caption+"</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton'>关闭</a> </div></div><div id='TB_ajaxContent' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px'></div>");
          }else{
            jQuery("#TB_overlay").unbind();
            jQuery("#TB_window").append("<div id='TB_ajaxContent' class='TB_modal' style='width:"+ajaxContentW+"px;height:"+ajaxContentH+"px;'></div>");
          }
        }else{
          jQuery("#TB_ajaxContent")[0].style.width = ajaxContentW +"px";
          jQuery("#TB_ajaxContent")[0].style.height = ajaxContentH +"px";
          jQuery("#TB_ajaxContent")[0].scrollTop = 0;
          jQuery("#TB_ajaxWindowTitle").html(caption);
        }
      }

      jQuery("#TB_closeWindowButton").click(tb_remove);

      if(url.indexOf('TB_inline') != -1){
        jQuery("#TB_ajaxContent").html(jQuery('#' + params['inlineId']).html());
        tb_position();
        jQuery("#TB_load").remove();
        jQuery("#TB_window").css({display:"block"});       
      }else if(url.indexOf('TB_iframe') != -1){
        tb_position();
        if(frames['TB_iframeContent'] === undefined){//be nice to safari
          jQuery("#TB_load").remove();
          jQuery("#TB_window").css({display:"block"});
          jQuery(document).keyup( function(e){ var key = e.keyCode; if(key == 27){tb_remove();}});
        }
      }else{
        jQuery("#TB_ajaxContent").load(url += "&random=" + (new Date().getTime()),function(){//to do a post change this load method
          tb_position();
          jQuery("#TB_load").remove();
          tb_init("#TB_ajaxContent a.thickbox");
          //jQuery("#TB_window").css({display:"block"});
          jQuery("#TB_window").show(280);
          if(afterFunc!=""){
            eval(afterFunc);//load完弹出层后执行的方法，
          }          
        });
      }
    }

    if(!params['modal']){
      document.onkeyup = function(e){
        if (e == null) { // ie
          keycode = event.keyCode;
        } else { // mozilla
          keycode = e.which;
        }
        if(keycode == 27){ // close
          tb_remove();
        }
      };
    }

  } catch(e) {
    //nothing here
  }
}

//helper functions below
function tb_showIframe(){
  jQuery("#TB_load").remove();
  jQuery("#TB_window").css({display:"block"});
}

function tb_remove() {
  jQuery("#TB_imageOff").unbind("click");
  jQuery("#TB_overlay").unbind("click");
  jQuery("#TB_closeWindowButton").unbind("click");
  jQuery("#TB_window").fadeOut("fast",function(){jQuery('#TB_window,#TB_overlay,#TB_HideSelect').remove();});
  jQuery("#TB_load").remove();
  if (typeof document.body.style.maxHeight == "undefined") {//if IE 6
    jQuery("body","html").css({height: "auto", width: "auto"});
    jQuery("html").css("overflow","");
  }
  document.onkeydown = "";
  return false;
}

function tb_position() {
  jQuery("#TB_window").css({marginLeft: '-' + parseInt((TB_WIDTH / 2),10) + 'px', width: TB_WIDTH + 'px'});
  if ( !(jQuery.browser.msie && typeof XMLHttpRequest == 'function')) { // take away IE6
    jQuery("#TB_window").css({marginTop: '-' + parseInt((TB_HEIGHT / 2),10) + 'px'});
  }
}

function tb_parseQuery ( query ) {
  var Params = {};
  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_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 = [w,h];
  return arrayPageSize;
}