Team:SDU-Denmark/jquery.imgbox.pack

From 2012.igem.org

/*

* imgBox - jQuery Plugin
* Yet another lightbox alternative
*
* Copyright (c) 2009 jQueryGlobe
* Examples and documentation at: http://jqueryglobe.com/article/imgbox/
* 
* Version: 1.0.0 (21/10/2009)
* Requires: jQuery v1.3+
* 
* Dual licensed under the MIT and GPL licenses:
*   http://www.opensource.org/licenses/mit-license.php
*   http://www.gnu.org/licenses/gpl.html
*/

(function($) {

$.fn.fixPNG = function() { return this.each(function () { var image = $(this).css('backgroundImage');

if (image.match(/^url\(["']?(.*\.png)["']?\)$/i)) { image = RegExp.$1; $(this).css({ 'backgroundImage': 'none', 'filter': "progid:DXImageTransform.Microsoft.AlphaImageLoader(enabled=true, sizingMethod=" + ($(this).css('backgroundRepeat') == 'no-repeat' ? 'crop' : 'scale') + ", src='" + image + "')" }).each(function () { var position = $(this).css('position'); if (position != 'absolute' && position != 'relative') $(this).css('position', 'relative'); }); } }); };

var elem, opts, preloader, orig_pos, final_pos, busy = false, nr, zindex = 90, titleh = 0, shadow = 20, margin = 20, fx = $.extend($('<div/>')[0], { prop: 0 });

$.fn.imgbox = function(settings) { return this.unbind('click.pb').bind('click.pb', function() { $.imgbox( $(this), settings ); return false; }); };

$.imgbox = function(e, o) { if (busy) { return false; }

elem = e; opts = $.extend({}, $.fn.imgbox.defaults, o); nr = jQuery.data(elem[0]);

if ($('#imgbox-wrap-' + nr).length) { zoomOut(); return false; }

hideActivity();

if (opts.overlayShow) { $('#imgbox-overlay') .unbind().stop().hide() .css({ 'height' : $(document).height(), 'opacity' : opts.overlayOpacity }) .show(); }

preloader = new Image; preloader.src = $(elem).attr('href');

if (preloader.complete == false) { showActivity();

$(preloader).unbind().one('load', function() { hideActivity(); zoomIn(); });

} else { zoomIn(); } };

$.fn.imgbox.defaults = { padding : 10, alignment : 'auto', // auto OR center allowMultiple : true, autoScale : true, speedIn : 500, speedOut : 500, easingIn : 'swing', easingOut : 'swing', zoomOpacity : false, overlayShow : false, overlayOpacity : 0.5, hideOnOverlayClick : true, hideOnContentClick : true };

function zoomIn() { busy = true;

if (opts.allowMultiple == false) { $('.imgbox-wrap').remove(); $('.imgbox-bg-wrap').remove();

} else { zindex = zindex + 2; }

final_pos = getZoomTo();

var title = $(elem).attr('title') || ;

.css({ 'z-index' : zindex, 'padding' : opts.padding }) .append('<img class="imgbox-img" id="imgbox-img-' + nr + '" src="' + preloader.src + '" alt="' + title + '" />') .appendTo('body');

if ($.browser.msie && parseInt($.browser.version.substr(0, 1)) < 7) { $('#imgbox-bg-' + nr).find('.imgbox-bg').fixPNG(); }

titleh = 0;

if (title.length > 0) { $('<div id="imgbox-tmp" class="imgbox-title" />').html(title).css('width', final_pos.width).appendTo('body');

titleh = $('#imgbox-tmp').outerHeight();

final_pos.height += titleh; final_pos.top -= titleh > margin + shadow ? margin : margin * 0.5;

$('#imgbox-tmp').remove();

}

if (opts.speedIn > 0) { var pos = getThumbPos();

orig_pos = { top : pos.top - opts.padding, left : pos.left - opts.padding, width : pos.width, height : pos.height };

$('#imgbox-wrap-' + nr).css(orig_pos).show(); $('#imgbox-bg-' + nr).css({ top : orig_pos.top, left : orig_pos.left, width : orig_pos.width + (opts.padding * 2), height : orig_pos.height + (opts.padding * 2), 'z-index' : zindex - 1 }).show();

if (opts.zoomOpacity) { final_pos.opacity = 1; }

fx.prop = 0;

$(fx).animate({ prop: 1 }, { duration : opts.speedIn, easing : opts.easingIn, step : draw, complete : _finish });

} else { $('#imgbox-img-' + nr ).css('height', (final_pos.height - titleh) + 'px'); $('#imgbox-wrap-' + nr).css(final_pos).fadeIn('normal', _finish );

$('#imgbox-bg-' + nr).css({ top : final_pos.top, left : final_pos.left, width : final_pos.width + (opts.padding * 2), height : final_pos.height + (opts.padding * 2), 'z-index' : zindex - 1 }).fadeIn('normal'); } };

function draw(pos) { var width = Math.round(orig_pos.width + (final_pos.width - orig_pos.width) * pos); var height = Math.round(orig_pos.height + (final_pos.height - orig_pos.height) * pos);

var top = Math.round(orig_pos.top + (final_pos.top - orig_pos.top) * pos); var left = Math.round(orig_pos.left + (final_pos.left - orig_pos.left) * pos);

$('#imgbox-wrap-' + nr).css({ 'width' : width + 'px', 'height' : height + 'px', 'top' : top + 'px', 'left' : left + 'px' });

$('#imgbox-bg-' + nr).css({ 'width' : Math.round(width + opts.padding * 2 ) + 'px', 'height' : Math.round(height + opts.padding * 2 ) + 'px', 'top' : top + 'px', 'left' : left + 'px' });

$('#imgbox-img-' + nr ).css('height', Math.round( height - ( ( ((height - Math.min(orig_pos.height, final_pos.height)) * 100) / (Math.max(orig_pos.height - final_pos.height, final_pos.height - orig_pos.height) ) * titleh / 100))) + 'px');

if (typeof final_pos.opacity !== 'undefined') { var opacity = pos < 0.3 ? 0.3 : pos;

$('#imgbox-wrap-' + nr).css('opacity', opacity);

if ($.browser.msie == false) { $('#imgbox-bg-' + nr).css('opacity', opacity); } } };

function _finish() { if (opts.overlayShow && opts.hideOnOverlayClick) { $('#imgbox-overlay').bind('click', {elem: elem, nr : nr, opts : opts, titleh : titleh}, clickHandler); }

$('#imgbox-wrap-' + nr) .css('filter', ) .bind('click', {elem: elem, nr : nr, opts : opts, titleh : titleh}, clickHandler) .append('<a href="javascript:;" class="imgbox-close"></a>') .children('.imgbox-title') .show();

if ($.browser.msie && parseInt($.browser.version.substr(0, 1)) < 7) { $('#imgbox-wrap-' + nr).find('.imgbox-close').fixPNG(); }

busy = false; };

function clickHandler(e) { e.stopPropagation();

if (e.target.className == 'imgbox-close' || (e.data.opts.hideOnOverlayClick && e.target.id == 'imgbox-overlay') || (e.data.opts.hideOnContentClick && e.target.className == 'imgbox-img' && ($(this).css('z-index') == zindex || $('.imgbox-img').length == 1))) { elem = e.data.elem; nr = e.data.nr; opts = e.data.opts; titleh = e.data.titleh; zoomOut();

} else if ($(this).css('z-index') < zindex) { $(this).next('.imgbox-bg-wrap').css('z-index', ++zindex); $(this).css('z-index', ++zindex); } };

function zoomOut() { if (busy) { return false; }

busy = true;

$('#imgbox-wrap-' + nr) .children('.imgbox-close, .imgbox-title') .remove();

if (opts.speedOut > 0) { var pos = getThumbPos();

orig_pos = { top : pos.top - opts.padding, left : pos.left - opts.padding, width : pos.width, height : pos.height };

var pos = $('#imgbox-wrap-' + nr).position();

final_pos = { top : pos.top , left : pos.left, width : $('#imgbox-wrap-' + nr).width(), height : $('#imgbox-wrap-' + nr).height() };

if (opts.zoomOpacity) { final_pos.opacity = 0; }

setTimeout(function() { $('#imgbox-wrap-' + nr).css('z-index', 90); $('#imgbox-bg-' + nr).css('z-index', 90); }, opts.speedOut * 0.5);

fx.prop = 1;

$(fx).animate({ prop: 0 }, { duration : opts.speedIn, easing : opts.easingIn, step : draw, complete : _clean_up });

} else {

if (opts.overlayShow) { _clean_up();

} else { $('#imgbox-bg-' + nr).fadeOut('fast'); $('#imgbox-wrap-' + nr).fadeOut('fast', _clean_up ); } } };

function _clean_up() { $('#imgbox-bg-' + nr).stop().remove(); $('#imgbox-wrap-' + nr).remove();

       zindex = zindex > 90 ? zindex - 2 : 90;

if (opts.overlayShow) { $('#imgbox-overlay').unbind().stop().fadeOut(200); }

busy = false; };

function getZoomTo() { var wiew = getViewport(); var to = {width : preloader.width, height : preloader.height};

var horizontal_space = (opts.padding + shadow + margin ) * 2; var vertical_space = (opts.padding + shadow + margin ) * 2;

if (opts.autoScale && (to.width > (wiew[0] - horizontal_space) || to.height > (wiew[1] - vertical_space))) { var ratio = Math.min(Math.min( wiew[0] - horizontal_space, to.width) / to.width, Math.min( wiew[1] - vertical_space, to.height) / to.height);

to.width = Math.round(ratio * to.width); to.height = Math.round(ratio * to.height); }

if (opts.alignment == 'center') { to.top = wiew[3] + ((wiew[1] - to.height - opts.padding * 2) * 0.5); to.left = wiew[2] + ((wiew[0] - to.width - opts.padding * 2) * 0.5);

} else { var pos = getThumbPos();

to.top = pos.top - ( ( to.height - pos.height ) * 0.5) - opts.padding ; to.left = pos.left - ( ( to.width - pos.width ) * 0.5) - opts.padding ;

to.top = to.top > wiew[3] + margin + shadow ? to.top : wiew[3] + margin + shadow; to.left = to.left > wiew[2] + margin + shadow ? to.left : wiew[2] + margin + shadow;

to.top = to.top > wiew[1] + wiew[3] - ( to.height + vertical_space ) ? wiew[1] + wiew[3] - ( to.height + ( margin + shadow + opts.padding * 2 ) ) : to.top; to.left = to.left > wiew[0] + wiew[2] - ( to.width + horizontal_space ) ? wiew[0] + wiew[2] - ( to.width + ( margin + shadow + opts.padding * 2 ) ) : to.left; }

if ( opts.autoScale == false ) { to.top = to.top > wiew[3] + shadow + margin ? to.top : wiew[3] + shadow + margin; to.left = to.left > wiew[2] + shadow + margin ? to.left : wiew[2] + shadow + margin; }

to.top = parseInt(to.top); to.left = parseInt(to.left);

return to; };

function getViewport() { return [ $(window).width(), $(window).height(), $(document).scrollLeft(), $(document).scrollTop() ]; };

function getThumbPos() { var thumb = $(elem).find('img').eq(0); var pos = thumb.offset();

pos.top += parseFloat( thumb.css('paddingTop') ); pos.left += parseFloat( thumb.css('paddingLeft') );

pos.top += parseFloat( thumb.css('border-top-width') ); pos.left += parseFloat( thumb.css('border-left-width') );

pos.width = thumb.width(); pos.height = thumb.height();

return pos; };

function showActivity() { var pos = getThumbPos( elem );

$('#imgbox-loading').css(pos).show(); };

function hideActivity() { $(preloader).unbind(); $('#imgbox-loading').hide(); };

function cancelLoading() { hideActivity();

if (opts.overlayShow) { $('#imgbox-overlay').unbind().stop().fadeOut(200); } };

function init() {

$('#imgbox-loading') .click(cancelLoading) .find('div') .css('opacity', 0.4); };

$(document).ready(function() { init(); });

})(jQuery);