/*
* Thickbox 3.1 - 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
$(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) {
  $(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) {//function called when the user clicks on a thickbox link

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

    if (tb_detectMacXFF()) {
      $("#TB_overlay").addClass("TB_overlayMacFFBGHack"); //use png overlay so hide flash
    } else {
      $("#TB_overlay").addClass("TB_overlayBG"); //use background and opacity
    }

    if (caption === null) { caption = ""; }
    $("body").append("<div id='TB_load'><img src='" + imgLoader.src + "' /></div>"); //add loader to the page
    $('#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$/;
    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 = $("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;
        $("#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='關閉'>關閉</a>或<kbd>Esc</kbd>鍵</div>");

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

        if (!(TB_PrevHTML === "")) {
          function goPrev() {
            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, imageGroup);
            return false;
          }
          $("#TB_prev").click(goPrev);
        }

        if (!(TB_NextHTML === "")) {
          function goNext() {
            $("#TB_window").remove();
            $("body").append("<div id='TB_window'></div>");
            tb_show(TB_NextCaption, TB_NextURL, imageGroup);
            return false;
          }
          $("#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();
        $("#TB_load").remove();
        $("#TB_ImageOff").click(tb_remove);
        $("#TB_window").css({ display: "block" }); //for safari using css instead of show
      };

      imgPreloader.src = url;
    } else {//code to show html

      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) {// either iframe or ajax window		
        urlNoQuery = url.split('TB_');
        $("#TB_iframeContent").remove();
        if (params['modal'] != "true") {//iframe no modal
          $("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>" + caption + "</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton' title='Close'>關閉</a>或<kbd>Esc</kbd>鍵</div></div><iframe frameborder='0' hspace='0' src='" + urlNoQuery[0] + "' id='TB_iframeContent' name='TB_iframeContent" + Math.round(Math.random() * 1000) + "' onload='tb_showIframe()' style='width:" + (ajaxContentW + 29) + "px;height:" + (ajaxContentH + 17) + "px;' > </iframe>");
        } else {//iframe modal
          $("#TB_overlay").unbind();
          $("#TB_window").append("<iframe frameborder='0' hspace='0' src='" + urlNoQuery[0] + "' id='TB_iframeContent' name='TB_iframeContent" + Math.round(Math.random() * 1000) + "' onload='tb_showIframe()' style='width:" + (ajaxContentW + 29) + "px;height:" + (ajaxContentH + 17) + "px;'> </iframe>");
        }
      } else {// not an iframe, ajax
        if ($("#TB_window").css("display") != "block") {
          if (params['modal'] != "true") {//ajax no modal
            $("#TB_window").append("<div id='TB_title'><div id='TB_ajaxWindowTitle'>" + caption + "</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton'>關閉</a>或<kbd>Esc</kbd>鍵</div></div><div id='TB_ajaxContent' style='width:" + ajaxContentW + "px;height:" + ajaxContentH + "px'></div>");
          } else {//ajax modal
            $("#TB_overlay").unbind();
            $("#TB_window").append("<div id='TB_ajaxContent' class='TB_modal' style='width:" + ajaxContentW + "px;height:" + ajaxContentH + "px;'></div>");
          }
        } else {//this means the window is already up, we are just loading new content via ajax
          $("#TB_ajaxContent")[0].style.width = ajaxContentW + "px";
          $("#TB_ajaxContent")[0].style.height = ajaxContentH + "px";
          $("#TB_ajaxContent")[0].scrollTop = 0;
          $("#TB_ajaxWindowTitle").html(caption);
        }
      }

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

      if (url.indexOf('TB_inline') != -1) {
        $("#TB_ajaxContent").append($('#' + params['inlineId']).children());
        $("#TB_window").unload(function() {
          $('#' + params['inlineId']).append($("#TB_ajaxContent").children()); // move elements back when you're finished
        });
        tb_position();
        $("#TB_load").remove();
        $("#TB_window").css({ display: "block" });
      } else if (url.indexOf('TB_iframe') != -1) {
        tb_position();
        if ($.browser.safari) {//safari needs help because it will not fire iframe onload
          $("#TB_load").remove();
          $("#TB_window").css({ display: "block" });
        }
      } else {
        $("#TB_ajaxContent").load(url += "&random=" + (new Date().getTime()), function() {//to do a post change this load method
          tb_position();
          $("#TB_load").remove();
          tb_init("#TB_ajaxContent a.thickbox");
          $("#TB_window").css({ display: "block" });
        });
      }

    }

    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() {
  $("#TB_load").remove();
  $("#TB_window").css({ display: "block" });
}

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

function tb_position() {
  $("#TB_window").css({ marginLeft: '-' + parseInt((TB_WIDTH / 2), 10) + 'px', width: TB_WIDTH + 'px' });
  if (!(jQuery.browser.msie && jQuery.browser.version < 7)) { // take away IE6
    $("#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;
}

function tb_detectMacXFF() {
  var userAgent = navigator.userAgent.toLowerCase();
  if (userAgent.indexOf('mac') != -1 && userAgent.indexOf('firefox') != -1) {
    return true;
  }
}