adobe/brackets

/*!
 * jQuery UI Effects Shake @VERSION
 *
 * Copyright 2012, AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT or GPL Version 2 licenses.
 * http://jquery.org/license
 *
 * http://docs.jquery.com/UI/Effects/Shake
 *
 * Depends:
 *    jquery.effects.core.js
 */
(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 = o.duration,
        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();

};

})(jQuery);