git.roojs.org Git - roojs1/blob - Roo/lib/Scroll.js

   1 /*
   2  * Portions of this file are based on pieces of Yahoo User Interface Library
   3  * Copyright (c) 2007, Yahoo! Inc. All rights reserved.
   4  * YUI licensed under the BSD License:
   5  * http://developer.yahoo.net/yui/license.txt
   6  * <script type="text/javascript">
   7  *
   8  */
   9     (function() {
  10         Roo.lib.Scroll = function(el, attributes, duration, method) {
  11             if (el) {
  12                 Roo.lib.Scroll.superclass.constructor.call(this, el, attributes, duration, method);
  13             }
  14         };
  15
  16         Roo.extend(Roo.lib.Scroll, Roo.lib.ColorAnim);
  17
  18
  19         var Y = Roo.lib;
  20         var superclass = Y.Scroll.superclass;
  21         var proto = Y.Scroll.prototype;
  22
  23         proto.toString = function() {
  24             var el = this.getEl();
  25             var id = el.id || el.tagName;
  26             return ("Scroll " + id);
  27         };
  28
  29         proto.doMethod = function(attr, start, end) {
  30             var val = null;
  31
  32             if (attr == 'scroll') {
  33                 val = [
  34                         this.method(this.currentFrame, start[0], end[0] - start[0], this.totalFrames),
  35                         this.method(this.currentFrame, start[1], end[1] - start[1], this.totalFrames)
  36                         ];
  37
  38             } else {
  39                 val = superclass.doMethod.call(this, attr, start, end);
  40             }
  41             return val;
  42         };
  43
  44         proto.getAttribute = function(attr) {
  45             var val = null;
  46             var el = this.getEl();
  47
  48             if (attr == 'scroll') {
  49                 val = [ el.scrollLeft, el.scrollTop ];
  50             } else {
  51                 val = superclass.getAttribute.call(this, attr);
  52             }
  53
  54             return val;
  55         };
  56
  57         proto.setAttribute = function(attr, val, unit) {
  58             var el = this.getEl();
  59
  60             if (attr == 'scroll') {
  61                 el.scrollLeft = val[0];
  62                 el.scrollTop = val[1];
  63             } else {
  64                 superclass.setAttribute.call(this, attr, val, unit);
  65             }
  66         };
  67     })();