/*!
 * jQuery UI Effects Shake - v1.10.4
 * http://jqueryui.com
 *
 * Copyright 2014 jQuery Foundation and other contributors
 * Released under the MIT license.
 * http://jquery.org/license
 *
 * http://api.jqueryui.com/shake-effect/
 */

define([
    'jquery',
    'jquery-ui-modules/effect'
], function ($, undefined) {

    $.effects.effect.shake = function (o, done) {

        var el = $(this),
            props = ["position", "top", "bottom", "left", "right", "height", "width"],
            mode = $.effects.setMode(el, o.mode || "effect"),
            direction = o.direction || "left",
            distance = o.distance || 20,
            times = o.times || 3,
            anims = times * 2 + 1,
            speed = Math.round(o.duration / anims),
            ref = (direction === "up" || direction === "down") ? "top" : "left",
            positiveMotion = (direction === "up" || direction === "left"),
            animation = {},
            animation1 = {},
            animation2 = {},
            i,

            // we will need to re-assemble the queue to stack our animations in place
            queue = el.queue(),
            queuelen = queue.length;

        $.effects.save(el, props);
        el.show();
        $.effects.createWrapper(el);

        // Animation
        animation[ref] = (positiveMotion ? "-=" : "+=") + distance;
        animation1[ref] = (positiveMotion ? "+=" : "-=") + distance * 2;
        animation2[ref] = (positiveMotion ? "-=" : "+=") + distance * 2;

        // Animate
        el.animate(animation, speed, o.easing);

        // Shakes
        for (i = 1; i < times; i++) {
            el.animate(animation1, speed, o.easing).animate(animation2, speed, o.easing);
        }
        el
            .animate(animation1, speed, o.easing)
            .animate(animation, speed / 2, o.easing)
            .queue(function () {
                if (mode === "hide") {
                    el.hide();
                }
                $.effects.restore(el, props);
                $.effects.removeWrapper(el);
                done();
            });

        // inject all the animations we just queued to be first in line (after "inprogress")
        if (queuelen > 1) {
            queue.splice.apply(queue,
                [1, 0].concat(queue.splice(queuelen, anims + 1)));
        }
        el.dequeue();

    };

});