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/*
YUI 3.17.2 (build 9c3c78e)
Copyright 2014 Yahoo! Inc. All rights reserved.
Licensed under the BSD License.
http://yuilibrary.com/license/
*/

YUI.add('anim-scroll', function (Y, NAME) {

/**
 * Adds support for the <code>scroll</code> property in <code>to</code>
 * and <code>from</code> attributes.
 * @module anim
 * @submodule anim-scroll
 */

var NUM = Number;

//TODO: deprecate for scrollTop/Left properties?
Y.Anim.behaviors.scroll = {
    set: function(anim, att, from, to, elapsed, duration, fn) {
        var
            node = anim._node,
            val = ([
            fn(elapsed, NUM(from[0]), NUM(to[0]) - NUM(from[0]), duration),
            fn(elapsed, NUM(from[1]), NUM(to[1]) - NUM(from[1]), duration)
        ]);

if (val[0]) {
            node.set('scrollLeft', val[0]);
        }

if (val[1]) {
            node.set('scrollTop', val[1]);
        }
    },
    get: function(anim) {
        var node = anim._node;
        return [node.get('scrollLeft'), node.get('scrollTop')];
    }
};

}, '3.17.2', {"requires": ["anim-base"]});