jssource/src_files/include/javascript/yui3/build/anim/anim-scroll.js

   1 /*
   2 Copyright (c) 2010, Yahoo! Inc. All rights reserved.
   3 Code licensed under the BSD License:
   4 http://developer.yahoo.com/yui/license.html
   5 version: 3.3.0
   6 build: 3167
   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 }, '3.3.0' ,{requires:['anim-base']});