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File: assets/plugins/fancybox/source/helpers/jquery.fancybox-thumbs.js

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File: assets/plugins/fancybox/source/helpers/jquery.fancybox-thumbs.js
Role: Auxiliary data
Content type: text/plain
Description: Auxiliary data
Class: YAF Base
Base structure for YAF framework based apps
Author: By
Last change:
Date: 6 years ago
Size: 3,836 bytes
 

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/*! * 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));