/*

 * Smoothbox v20080623 by Boris Popoff (http://gueschla.com)

 * To be used with mootools 1.2

 *

 * Based on Cody Lindley's Thickbox, MIT License

 *

 * Licensed under the MIT License:

 *   http://www.opensource.org/licenses/mit-license.php

 */



// on page load call TB_init

window.addEvent('domready', TB_init);



// prevent javascript error before the content has loaded

TB_WIDTH = 0;

TB_HEIGHT = 0;

var TB_doneOnce = 0;



// add smoothbox to href elements that have a class of .smoothbox

function TB_init(){

    $$("a.smoothbox").each(function(el){

        el.onclick = TB_bind

    });

}



function TB_bind(event){

    var event = new Event(event);

    // stop default behaviour

    event.preventDefault();

    // remove click border

    this.blur();

    // get caption: either title or name attribute

    var caption = this.title || this.name || "";

    // get rel attribute for image groups

    var group = this.rel || false;

    // display the box for the elements href

    TB_show(caption, this.href, group);

    this.onclick = TB_bind;

    return false;

}



// called when the user clicks on a smoothbox link

function TB_show(caption, url, rel){



    // create iframe, overlay and box if non-existent

    

    if (!$("TB_overlay")) {

        new Element('iframe').setProperty('id', 'TB_HideSelect').injectInside(document.body);

        $('TB_HideSelect').setOpacity(0);

        new Element('div').setProperty('id', 'TB_overlay').injectInside(document.body);

        $('TB_overlay').setOpacity(0);

        TB_overlaySize();

        new Element('div').setProperty('id', 'TB_load').injectInside(document.body);

        $('TB_load').innerHTML = "<img src='/rmd/images/spinner.gif' width='16' height='16' />";

        TB_load_position();

        

        $('TB_overlay').set('tween', {

            duration: 400

        });

        $('TB_overlay').tween('opacity', 0, 0.6);

        

    }

    

    if (!$("TB_load")) {

        new Element('div').setProperty('id', 'TB_load').injectInside(document.body);

        $('TB_load').innerHTML = "<img src='loading.gif' />";

        TB_load_position();

    }

    

    if (!$("TB_window")) {

        new Element('div').setProperty('id', 'TB_window').injectInside(document.body);

        $('TB_window').setOpacity(0);

    }

    

    $("TB_overlay").onclick = TB_remove;

    window.onscroll = TB_position;

    

    // check if a query string is involved

    var baseURL = url.match(/(.+)?/)[1] || url;

    

    // regex to check if a href refers to an image

    var imageURL = /\.(jpe?g|png|gif|bmp)/gi;

    

    // check for images

    if (baseURL.match(imageURL)) {

        var dummy = {

            caption: "",

            url: "",

            html: ""

        };

        

        var prev = dummy, next = dummy, imageCount = "";

        

        // if an image group is given

        if (rel) {

            function getInfo(image, id, label){

                return {

                    caption: image.title,

                    url: image.href,

                    html: "<span id='TB_" + id + "'>&nbsp;&nbsp;<a href='#'>" + label + "</a></span>"

                }

            }

            

            // find the anchors that point to the group

            var imageGroup = [];

            $$("a.smoothbox").each(function(el){

                if (el.rel == rel) {

                    imageGroup[imageGroup.length] = el;

                }

            })

            

            var foundSelf = false;

            

            // loop through the anchors, looking for ourself, saving information about previous and next image

            for (var i = 0; i < imageGroup.length; i++) {

                var image = imageGroup[i];

                var urlTypeTemp = image.href.match(imageURL);

                

                // look for ourself


                if (image.href == url) {

                    foundSelf = true;

                    imageCount = "Image " + (i + 1) + " of " + (imageGroup.length);

                }

                else {

                    // when we found ourself, the current is the next image

                    if (foundSelf) {

                        next = getInfo(image, "next", "Next &gt;");

                        // stop searching

                        break;

                    }

                    else {

                        // didn't find ourself yet, so this may be the one before ourself

                        prev = getInfo(image, "prev", "&lt; Prev");

                    }

                }

            }

        }

        

        imgPreloader = new Image();

        imgPreloader.onload = function(){

            imgPreloader.onload = null;

            

            // Resizing large images

            var x = window.getWidth() - 150;

            var y = window.getHeight() - 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

            

            // TODO don't use globals

            TB_WIDTH = imageWidth + 30;

            TB_HEIGHT = imageHeight + 60;

            

            // TODO empty window content instead

            $("TB_window").innerHTML += "<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'>" + imageCount + prev.html + next.html + "</div></div><div id='TB_closeWindow'><a href='#' id='TB_closeWindowButton' title='Close'>Cerrar</a></div>";

            

            $("TB_closeWindowButton").onclick = TB_remove;

            

            function buildClickHandler(image){

                return function(){

                    $("TB_window").dispose();

                    new Element('div').setProperty('id', 'TB_window').injectInside(document.body);

                    

                    TB_show(image.caption, image.url, rel);

                    return false;

                };

            }

            var goPrev = buildClickHandler(prev);

            var goNext = buildClickHandler(next);

            if ($('TB_prev')) {

                $("TB_prev").onclick = goPrev;

            }

            

            if ($('TB_next')) {

                $("TB_next").onclick = goNext;

            }

            

            document.onkeydown = function(event){

                var event = new Event(event);

                switch (event.code) {

                    case 27:

                        TB_remove();

                        break;

                    case 190:

                        if ($('TB_next')) {

                            document.onkeydown = null;

                            goNext();

                        }

                        break;

                    case 188:

                        if ($('TB_prev')) {

                            document.onkeydown = null;

                            goPrev();

                        }

                        break;

                }

            }

            

            // TODO don't remove loader etc., just hide and show later

            $("TB_ImageOff").onclick = TB_remove;

            TB_position();

            TB_showWindow();

        }

        imgPreloader.src = url;

        

    }

    else { //code to show html pages

        var queryString = url.match(/\?(.+)/)[1];

        var params = TB_parseQuery(queryString);

        

        TB_WIDTH = (params['width'] * 1) + 30;

        TB_HEIGHT = (params['height'] * 1) + 40;

        

        var ajaxContentW = TB_WIDTH - 30, ajaxContentH = TB_HEIGHT - 45;

        

        if (url.indexOf('TB_iframe') != -1) {

            urlNoQuery = url.split('TB_');

            $("TB_window").innerHTML += "<div id='TB_title'><div id='TB_ajaxWindowTitle'>" + caption + "</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton' title='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_showWindow()'> </iframe>";

        }

        else {

            $("TB_window").innerHTML += "<div id='TB_title'><div id='TB_ajaxWindowTitle'>" + caption + "</div><div id='TB_closeAjaxWindow'><a href='#' id='TB_closeWindowButton'></a></div></div><div id='TB_ajaxContent' style='width:" + ajaxContentW + "px;height:" + ajaxContentH + "px;'></div>";

        }

        

        $("TB_closeWindowButton").onclick = TB_remove;

        

        if (url.indexOf('TB_inline') != -1) {

            $("TB_ajaxContent").innerHTML = ($(params['inlineId']).innerHTML);

            TB_position();

            TB_showWindow();

        }

        else 

            if (url.indexOf('TB_iframe') != -1) {

                TB_position();

                if (frames['TB_iframeContent'] == undefined) {//be nice to safari

                    $(document).keyup(function(e){

                        var key = e.keyCode;

                        if (key == 27) {

                            TB_remove()

                        }

                    });

                    TB_showWindow();

                }

            }

            else {

                var handlerFunc = function(){

                    TB_position();

                    TB_showWindow();

                };



				new Request.HTML({

                    method: 'get',

                    update: $("TB_ajaxContent"),

                    onComplete: handlerFunc

                }).get(url);

            }

    }

    

    window.onresize = function(){

        TB_position();

        TB_load_position();

        TB_overlaySize();

    }

    

    document.onkeyup = function(event){

        var event = new Event(event);

        if (event.code == 27) { // close

            TB_remove();

        }

    }

    

}



//helper functions below



function TB_showWindow(){

    //$("TB_load").dispose();

    //$("TB_window").setStyles({display:"block",opacity:'0'});

    

    if (TB_doneOnce == 0) {

        TB_doneOnce = 1;

        

        $('TB_window').set('tween', {

            duration: 250,

            onComplete: function(){

                if ($('TB_load')) {

                    $('TB_load').dispose();

                }

            }

        });

        $('TB_window').tween('opacity', 0, 1);

        

    }

    else {

        $('TB_window').setStyle('opacity', 1);

        if ($('TB_load')) {

            $('TB_load').dispose();

        }

    }

}



function TB_remove(){

    $("TB_overlay").onclick = null;

    document.onkeyup = null;

    document.onkeydown = null;

    

    if ($('TB_imageOff')) 

        $("TB_imageOff").onclick = null;

    if ($('TB_closeWindowButton')) 

        $("TB_closeWindowButton").onclick = null;

    if ($('TB_prev')) {

        $("TB_prev").onclick = null;

    }

    if ($('TB_next')) {

        $("TB_next").onclick = null;

    }

    

    

    $('TB_window').set('tween', {

        duration: 250,

        onComplete: function(){

            $('TB_window').dispose();

        }

    });

    $('TB_window').tween('opacity', 1, 0);

    

    

    

    $('TB_overlay').set('tween', {

        duration: 400,

        onComplete: function(){

            $('TB_overlay').dispose();

        }

    });

    $('TB_overlay').tween('opacity', 0.6, 0);

    

    window.onscroll = null;

    window.onresize = null;

    

    $('TB_HideSelect').dispose();

    TB_init();

    TB_doneOnce = 0;

    return false;

}



function TB_position(){

    $('TB_window').set('morph', {

        duration: 75

    });

    $('TB_window').morph({

		width: TB_WIDTH + 'px',

		left: (window.getScrollLeft() + (window.getWidth() - TB_WIDTH) / 2) + 'px',

		top: (window.getScrollTop() + (window.getHeight() - TB_HEIGHT) / 2) + 'px'

	});	

}



function TB_overlaySize(){

    // we have to set this to 0px before so we can reduce the size / width of the overflow onresize 

    $("TB_overlay").setStyles({

        "height": '0px',

        "width": '0px'

    });

    $("TB_HideSelect").setStyles({

        "height": '0px',

        "width": '0px'

    });

    $("TB_overlay").setStyles({

        "height": window.getScrollHeight() + 'px',

        "width": window.getScrollWidth() + 'px'

    });

    $("TB_HideSelect").setStyles({

        "height": window.getScrollHeight() + 'px',

        "width": window.getScrollWidth() + 'px'

    });

}



function TB_load_position(){

    if ($("TB_load")) {

        $("TB_load").setStyles({

            left: (window.getScrollLeft() + (window.getWidth() - 56) / 2) + 'px',

            top: (window.getScrollTop() + ((window.getHeight() - 20) / 2)) + 'px',

            display: "block"

        });

    }

}



function TB_parseQuery(query){

    // return empty object

    if (!query) 

        return {};

    var params = {};

    

    // parse query

    var pairs = query.split(/[;&]/);

    for (var i = 0; i < pairs.length; i++) {

        var pair = pairs[i].split('=');

        if (!pair || pair.length != 2) 

            continue;

        // unescape both key and value, replace "+" with spaces in value

        params[unescape(pair[0])] = unescape(pair[1]).replace(/\+/g, ' ');

    }

    return params;

}