/*
 * 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 DELAI = 7000 ; //nombre de secondes entre deux images
var imageArray = [];
var FULL_S = false;
var DIAPO = 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) {
    $("a.thickbox",root).each(
        function(i) {
            this.onclick = TB_image;
            var t = this.alt || this.name || null;
            this.alt = t + " - view bigger version";
            if (
                (this.type && this.type.match(/^image[\/](jpeg|gif|png)$/i))
                || (this.href && this.href.match(/\.(jpeg|jpg|png|gif)$/i))
            ) {

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

            }
        }
    );
//console.log(imageArray);
}

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' title='Fermer'></div><div id='TB_window'></div>");
        $("#TB_overlay").click(TB_remove);
    }
    $(".TB_hide").hide();

    if(caption==null){caption=""};

    if(!FULL_S){
        $(window).scroll(TB_position);
    }

    TB_overlaySize();

    $("body").append("<div id='TB_load'><img src='"+TB_chemin_animation+"' alt='loading' /></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_Diapo= "";
    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='#' title='Image suivante'><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='#' title='Image precedente'><strong>&lt; </strong></a></span>";
                }
            } else {
                TB_FoundURL = true;
                TB_imageCount =(TB_Counter + 1) +" / "+ (TB_TempArray.length);
            }
        }
    }
    if (!(TB_NextHTML == "")) { //preload de la prochaine image
        imageSuivante = new Image();
        imageSuivante.src = TB_NextURL ;
    }

    imgPreloader = new Image();
    imgPreloader.onload = function(){
    imgPreloader.onload = null;
    //console.log("loaded" + url);
    // 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_TempArray.length > 1){
       if(!DIAPO){
            TB_Diapo = "<span id='TB_Diapo'>&nbsp;&nbsp;<a href='#' title='Diaporama'><strong>[Diaporama]</strong></a></span>";
       }else{
            TB_Diapo = "<span id='TB_Diapo'>&nbsp;&nbsp;<a href='#' title='Stop'><strong>[Stop]</strong></a></span>";
       }
    }else{
        TB_imageCount = "";
    }
    if (TB_Big_Image)
        TB_Full_Size = "<span id='TB_Full'>&nbsp;&nbsp;<a href='#' title='zoom'><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+" - image suivante'/></a>" + "<div id='TB_legend' style='background-color:#fff'><div id='TB_caption'>"+caption+"</div><div id='TB_secondLine'>" + TB_imageCount + TB_Full_Size + TB_PrevHTML + TB_NextHTML + TB_Diapo +"</div><div id='TB_closeWindow'><a href='#' id='TB_closeWindowButton'><img src='"+TB_chemin_close+"' title='Fermer' /></a></div></div>");

        $("#TB_closeWindowButton").click(TB_remove);
        $("#TB_load").remove();
        $("#TB_window").fadeIn("slow");
        //setTimeout('$("#TB_legend").slideDown(800);',1600);

    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_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_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);
    }

    $("#TB_Diapo").click(diaporama);

    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


    //diapo
    //console.log("deb " + DELAI); 
    if(DIAPO)
        setTimeout('diapo();',DELAI);
        $("#TB_ImageOff")[0].focus();
    }

    imgPreloader.src = url;
    //console.log("hop" + url);

    }else{//code to show html pages
        //console.log(url);
        var queryString = url.replace(/^[^\?]+\?+/,'');
        //rhooooo, c'est pas du boulot ce thickbox
        queryString = queryString.replace(/^[^\?]+\?+/,'');
        //console.log(queryString);
        var params = TB_parseQuery( queryString );
        //console.log(params);

        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 diaporama(){
    //alert("diapo");
    if(!DIAPO){
        DIAPO = true ;
        //console.log("deb"); 
        diapo();
        //$("TB_secondLine").html(TB_imageCount + TB_Full_Size + TB_PrevHTML + TB_NextHTML + "[Stop]");
    } else {
        DIAPO = false ;
    }
}

function diapo(){
    //console.log(DIAPO);
    if(DIAPO){
        if(TB_NextURL !=""){
            $("#TB_window").remove();
            $("body").append("<div id='TB_window'></div>");
            //console.log("hop");
            TB_show(TB_NextCaption, TB_NextURL); 
        }else DIAPO = false ;
    }
    return false;
}

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

function TB_remove() {
    DIAPO = false ;
    FULL_S = false ;
    $("#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();
    $(".TB_hide").show();
    
    return false;
}

function TB_position() {
    var pagesize = TB_getPageSize();
    var arrayPageScroll = TB_getPageScrollTop();
    var legendHeight = $("#TB_legend").height() ;   

    if(FULL_S && DIAPO){
        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);
    }

    if(!FULL_S || DIAPO){
        $("#TB_window").css({width:TB_WIDTH+"px",left: (arrayPageScroll[0] + (pagesize[0] - TB_WIDTH)/2)+"px", top: (arrayPageScroll[1] + (pagesize[1]-TB_HEIGHT)/2 - legendHeight/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();
}