Undev/redmine-stuff-to-do-plugin

/*
 * jQuery UI Effects Explode @VERSION
 *
 * Copyright (c) 2008 AUTHORS.txt (http://ui.jquery.com/about)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://docs.jquery.com/UI/Effects/Explode
 *
 * Depends:
 *    effects.core.js
 */
(function($) {

$.effects.explode = function(o) {

    return this.queue(function() {

    var rows = o.options.pieces ? Math.round(Math.sqrt(o.options.pieces)) : 3;
    var cells = o.options.pieces ? Math.round(Math.sqrt(o.options.pieces)) : 3;

    o.options.mode = o.options.mode == 'toggle' ? ($(this).is(':visible') ? 'hide' : 'show') : o.options.mode;
    var el = $(this).show().css('visibility', 'hidden');
    var offset = el.offset();

    //Substract the margins - not fixing the problem yet.
    offset.top -= parseInt(el.css("marginTop")) || 0;
    offset.left -= parseInt(el.css("marginLeft")) || 0;

    var width = el.outerWidth(true);
    var height = el.outerHeight(true);

    for(var i=0;i<rows;i++) { // =
        for(var j=0;j<cells;j++) { // ||
            el
                .clone()
                .appendTo('body')
                .wrap('<div></div>')
                .css({
                    position: 'absolute',
                    visibility: 'visible',
                    left: -j*(width/cells),
                    top: -i*(height/rows)
                })
                .parent()
                .addClass('effects-explode')
                .css({
                    position: 'absolute',
                    overflow: 'hidden',
                    width: width/cells,
                    height: height/rows,
                    left: offset.left + j*(width/cells) + (o.options.mode == 'show' ? (j-Math.floor(cells/2))*(width/cells) : 0),
                    top: offset.top + i*(height/rows) + (o.options.mode == 'show' ? (i-Math.floor(rows/2))*(height/rows) : 0),
                    opacity: o.options.mode == 'show' ? 0 : 1
                }).animate({
                    left: offset.left + j*(width/cells) + (o.options.mode == 'show' ? 0 : (j-Math.floor(cells/2))*(width/cells)),
                    top: offset.top + i*(height/rows) + (o.options.mode == 'show' ? 0 : (i-Math.floor(rows/2))*(height/rows)),
                    opacity: o.options.mode == 'show' ? 1 : 0
                }, o.duration || 500);
        }
    }

    // Set a timeout, to call the callback approx. when the other animations have finished
    setTimeout(function() {

        o.options.mode == 'show' ? el.css({ visibility: 'visible' }) : el.css({ visibility: 'visible' }).hide();
                if(o.callback) o.callback.apply(el[0]); // Callback
                el.dequeue();

                $('.effects-explode').remove();

    }, o.duration || 500);


    });

};

})(jQuery);