1 /*

     2 Copyright (c) 2009, Yahoo! Inc. All rights reserved.

     3 Code licensed under the BSD License:

     4 http://developer.yahoo.net/yui/license.txt

     5 version: 3.0.0b1

     6 build: 1163

     7 */

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

     9 

    10 /**

    11  * Adds support for the <code>scroll</code> property in <code>to</code>

    12  * and <code>from</code> attributes.

    13  * @module anim

    14  * @submodule anim-scroll

    15  */

    16 

    17 var NUM = Number;

    18 

    19 //TODO: deprecate for scrollTop/Left properties?

    20 Y.Anim.behaviors.scroll = {

    21     set: function(anim, att, from, to, elapsed, duration, fn) {

    22         var

    23             node = anim._node, 

    24             val = ([

    25             fn(elapsed, NUM(from[0]), NUM(to[0]) - NUM(from[0]), duration),

    26             fn(elapsed, NUM(from[1]), NUM(to[1]) - NUM(from[1]), duration)

    27         ]);

    28 

    29         if (val[0]) {

    30             node.set('scrollLeft', val[0]);

    31         }

    32 

    33         if (val[1]) {

    34             node.set('scrollTop', val[1]);

    35         }

    36     },

    37     get: function(anim) {

    38         var node = anim._node;

    39         return [node.get('scrollLeft'), node.get('scrollTop')];

    40     }

    41 };

    42 

    43 

    44 

    45 

    46 }, '3.0.0b1' ,{requires:['anim-base', 'node-base']});