/*
 * 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
*/
/* NGV 2010 EDITED EDITION
   * Reference to progress bar image moved to CSS.
   * wrapped in a closure so global variables are no longer introduced
   * passes jslint
   * custom code to detect image with caption in ajax content, and automatically adjust the size of the image and the thickbox to fit the screen.
    
*/



/*global document jQuery navigator Image window self unescape */
(function($) {
    var TB_WIDTH, TB_HEIGHT, ajaxContentW, ajaxContentH, tb_init;
    function tb_detectMacXFF() {
        var userAgent = navigator.userAgent.toLowerCase();
        if (userAgent.indexOf('mac') != -1 && userAgent.indexOf('firefox') != -1) {
            return true;
        }
    }
    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;
        var arrayPageSize = [w, h];
        return arrayPageSize;
    }
    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_show(caption, url, imageGroup) { //function called when the user clicks on a thickbox link
        var baseURL, urlString, urlType, TB_PrevCaption = "",
        TB_PrevURL = "",
        TB_PrevHTML = "",
        TB_NextCaption = "",
        TB_NextURL = "",
        TB_NextHTML = "",
        TB_imageCount = "",
        TB_FoundURL = false,
        TB_TempArray, TB_Counter, imgPreloader, urlNoQuery;
        caption = caption || "";
        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);
                }
            }
            

            $("#TB_overlay").addClass("TB_overlayBG"); //use background and opacity
            
            $("body").append("<div id='TB_load'>Loading...</div>"); //add loader to the page
            $('#TB_load').show(); //show loader
            if (url.indexOf("?") !== -1) { //ff there is a query string involved
                baseURL = url.substr(0, url.indexOf("?"));
            } else {
                baseURL = url;
            }
            urlString = /\.jpg$|\.jpeg$|\.png$|\.gif$|\.bmp$/;
            urlType = baseURL.toLowerCase().match(urlString);
            if (urlType == '.jpg' || urlType == '.jpeg' || urlType == '.png' || urlType == '.gif' || urlType == '.bmp') { //code to show images
                if (imageGroup) {
                    TB_TempArray = $("a[@rel=" + imageGroup + "]").get();
                    for (TB_Counter = 0;
                    ((TB_Counter < TB_TempArray.length) && (TB_NextHTML === "")); TB_Counter++) {
                        var urlTypeTemp = TB_TempArray[TB_Counter].href.toLowerCase().match(urlString);
                        if (! (TB_TempArray[TB_Counter].href == url)) {
                            if (TB_FoundURL) {
                                TB_NextCaption = TB_TempArray[TB_Counter].title;
                                TB_NextURL = TB_TempArray[TB_Counter].href;
                                TB_NextHTML = "<span id='TB_next'>&nbsp;&nbsp;<a href='#'>Next &gt;</a></span>";
                            } else {
                                TB_PrevCaption = TB_TempArray[TB_Counter].title;
                                TB_PrevURL = TB_TempArray[TB_Counter].href;
                                TB_PrevHTML = "<span id='TB_prev'>&nbsp;&nbsp;<a href='#'>&lt; Prev</a></span>";
                            }
                        } else {
                            TB_FoundURL = true;
                            TB_imageCount = "Image " + (TB_Counter + 1) + " of " + (TB_TempArray.length);
                        }
                    }
                }
                imgPreloader = new Image();
                imgPreloader.onload = function() {
                    var pagesize = tb_getPageSize();
                    var x = pagesize[0] - 150;
                    var y = pagesize[1] - 150;
                    var imageWidth = imgPreloader.width;
                    var imageHeight = imgPreloader.height;
                    function goPrev() {
                        if ($(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;
                    }
                    function goNext() {
                        $("#TB_window").remove();
                        $("body").append("<div id='TB_window'></div>");
                        tb_show(TB_NextCaption, TB_NextURL, imageGroup);
                        return false;
                    }
                    imgPreloader.onload = null; // Resizing large images - orginal by Christian Montoya edited by me.
                    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;
                    TB_HEIGHT = imageHeight;
                    $("#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'>close</a></div>");
                    $("#TB_closeWindowButton").click(tb_remove);
                    if (! (TB_PrevHTML === "")) {
                        $("#TB_prev").click(goPrev);
                    }
                    if (! (TB_NextHTML === "")) {
                        $("#TB_next").click(goNext);
                    }
                    $(document).bind("keydown", function keydown(e) {
                        var keycode = e.keyCode || e.which;
                        if (keycode === 27) { // close
                            tb_remove();
                        } else if (keycode === 190) { // display previous image
                            if (! (TB_NextHTML === "")) {
                                $(document).unbind("keydown", keydown);
                                goNext();
                            }
                        } else if (keycode == 188) { // display next image
                            if (! (TB_PrevHTML === "")) {
                                $(document).unbind("keydown", keydown);
                                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) || 630; //defaults to 630 if no paramaters were added to URL
                TB_HEIGHT = (params.height) || 440; //defaults to 440 if no paramaters were added to URL
                ajaxContentW = TB_WIDTH;
                ajaxContentH = TB_HEIGHT;
                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'>close</a></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'>close</a></div></div><div id='TB_ajaxContent' style='width:" + ajaxContentW + "px'></div>");
                           
                        } else { //ajax modal
                            $("#TB_overlay").unbind();
                            $("#TB_window").append("<div id='TB_ajaxContent' class='TB_modal' style='width:" + ajaxContentW + "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].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
                        //here, detect and adjust sizes.
                        // 
                        $("#TB_load").remove();
                        tb_init("#TB_ajaxContent a.thickbox");
                        $("#TB_window").fadeIn(300);
                        
                        if($("#TB_ajaxContent .artwork_caption").length){
                            var pagesize = tb_getPageSize();
                            TB_HEIGHT=pagesize[1]*0.9;
                            var captionbox = $("#TB_ajaxContent .artwork_caption");
                            var captionheight=captionbox.height();
                            var captionwidth=Math.min(captionbox.css({"display":"inline"}).innerWidth(), captionbox.css({"display":"inline-block"}).innerWidth());
                            captionbox.css("display","block");
                            
                            
                            var image = $("#TB_ajaxContent img");
                            var nativeheight=image.height();
                            var nativewidth=image.width();
                            var resizedheight, resizedwidth;
                            var timeout = 50;
                                setTimeout(function wait(){
                                    nativeheight=image.height();
                                    nativewidth=image.width();

                                    if(!(nativeheight > 80) && timeout--){
                                        setTimeout(wait,0);
                                    } else{
                                        adjust();
                                    }
                                },0);
                            
                            
                            
                            function adjust() {
                                var resizedheight=Math.ceil(Math.min(TB_HEIGHT-50-captionheight, nativeheight));
                                var resizedwidth=Math.ceil((resizedheight/nativeheight)*nativewidth);
                                image.css({"height":resizedheight, "width":resizedwidth, "margin":"0 auto 0 auto", display:"block"});
                                TB_WIDTH=Math.ceil(Math.max(resizedwidth,captionwidth));
                                TB_HEIGHT=resizedheight+50+captionheight;
                                $("#TB_window").css({"height": TB_HEIGHT,"width":TB_WIDTH});
                                $("#TB_ajaxContent").css({"height": TB_HEIGHT,"width":TB_WIDTH});
                                tb_position();
                            }
                            
                        } else {
                                tb_position();
                        }
                    });
                }
            }
            if (!params.modal) {
                $(document).bind("keyup", document.onkeyup = function(e) {
                    var keycode = e.keyCode || e.which;
                    if (keycode === 27) { // close
                        tb_remove();
                    }
                });
            }
        } catch(e) { //nothing here
        }
    }
    tb_init = function(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;
        });
    };
    $(document).ready(function() {
        tb_init('a.thickbox, area.thickbox, input.thickbox'); //pass where to apply thickbox
    }); //add thickbox to href & area elements that have a class of .thickbox
    
    window.tb_showIframe = function tb_showIframe() {
        $("#TB_load").remove();
        $("#TB_window").css({
            display: "block"
        });
    };
} (jQuery));