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Diffstat (limited to 'js/source/helpers/jquery.fancybox-thumbs.js')
| -rwxr-xr-x | js/source/helpers/jquery.fancybox-thumbs.js | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/js/source/helpers/jquery.fancybox-thumbs.js b/js/source/helpers/jquery.fancybox-thumbs.js new file mode 100755 index 0000000..5db3d4a --- /dev/null +++ b/js/source/helpers/jquery.fancybox-thumbs.js @@ -0,0 +1,162 @@ + /*! + * 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 += '<li><a style="width:' + thumbWidth + 'px;height:' + thumbHeight + 'px;" href="javascript:jQuery.fancybox.jumpto(' + n + ');"></a></li>'; + } + + this.wrap = $('<div id="fancybox-thumbs"></div>').addClass(opts.position).appendTo('body'); + this.list = $('<ul>' + list + '</ul>').appendTo(this.wrap); + + //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));
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