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Team:Zamorano/js/jquery.fancybox-thumbs.js
From 2014.igem.org
/*!
* Thumbnail helper for fancyBox
* version: 1.0.7 (Mon, 01 Oct 2012)
* @requires fancyBox v2.0 or later
*
* Usage:
* $(".fancybox").fancybox({
* helpers : {
* thumbs: {
* width : 50,
* height : 50
* }
* }
* });
*
*/
(function ($) { //Shortcut for fancyBox object var F = $.fancybox;
//Add helper object F.helpers.thumbs = { defaults : { width : 50, // thumbnail width height : 50, // thumbnail height position : 'bottom', // 'top' or 'bottom' source : function ( item ) { // function to obtain the URL of the thumbnail image var href;
if (item.element) { href = $(item.element).find('img').attr('src'); }
if (!href && item.type === 'image' && item.href) { href = item.href; }
return href; } },
wrap : null, list : null, width : 0,
init: function (opts, obj) { var that = this, list, thumbWidth = opts.width, thumbHeight = opts.height, thumbSource = opts.source;
//Build list structure list = ;
for (var n = 0; n < obj.group.length; n++) {
list += '- ' + list + '
//Load each thumbnail $.each(obj.group, function (i) { var href = thumbSource( obj.group[ i ] );
if (!href) { return; }
$("<img />").load(function () { var width = this.width, height = this.height, widthRatio, heightRatio, parent;
if (!that.list || !width || !height) { return; }
//Calculate thumbnail width/height and center it widthRatio = width / thumbWidth; heightRatio = height / thumbHeight;
parent = that.list.children().eq(i).find('a');
if (widthRatio >= 1 && heightRatio >= 1) { if (widthRatio > heightRatio) { width = Math.floor(width / heightRatio); height = thumbHeight;
} else { width = thumbWidth; height = Math.floor(height / widthRatio); } }
$(this).css({ width : width, height : height, top : Math.floor(thumbHeight / 2 - height / 2), left : Math.floor(thumbWidth / 2 - width / 2) });
parent.width(thumbWidth).height(thumbHeight);
$(this).hide().appendTo(parent).fadeIn(300);
}).attr('src', href); });
//Set initial width this.width = this.list.children().eq(0).outerWidth(true);
this.list.width(this.width * (obj.group.length + 1)).css('left', Math.floor($(window).width() * 0.5 - (obj.index * this.width + this.width * 0.5))); },
beforeLoad: function (opts, obj) { //Remove self if gallery do not have at least two items if (obj.group.length < 2) { obj.helpers.thumbs = false;
return; }
//Increase bottom margin to give space for thumbs obj.margin[ opts.position === 'top' ? 0 : 2 ] += ((opts.height) + 15); },
afterShow: function (opts, obj) { //Check if exists and create or update list if (this.list) { this.onUpdate(opts, obj);
} else { this.init(opts, obj); }
//Set active element this.list.children().removeClass('active').eq(obj.index).addClass('active'); },
//Center list onUpdate: function (opts, obj) { if (this.list) { this.list.stop(true).animate({ 'left': Math.floor($(window).width() * 0.5 - (obj.index * this.width + this.width * 0.5)) }, 150); } },
beforeClose: function () { if (this.wrap) { this.wrap.remove(); }
this.wrap = null; this.list = null; this.width = 0; } }
}(jQuery));
