video/user_guide/nav/prototype.lite.js

   1 /*  Prototype JavaScript framework
   2  *  (c) 2005 Sam Stephenson <sam@conio.net>
   3  *
   4  *  Prototype is freely distributable under the terms of an MIT-style license.
   5  *
   6  *  For details, see the Prototype web site: http://prototype.conio.net/
   7  *
   8 /*--------------------------------------------------------------------------*/
   9
  10
  11 //note: this is a stripped down version of prototype, to be used with moo.fx by mad4milk (http://moofx.mad4milk.net).
  12
  13 var Class = {
  14   create: function() {
  15         return function() {
  16           this.initialize.apply(this, arguments);
  17         }
  18   }
  19 }
  20
  21 Object.extend = function(destination, source) {
  22   for (property in source) {
  23         destination[property] = source[property];
  24   }
  25   return destination;
  26 }
  27
  28 Function.prototype.bind = function(object) {
  29   var __method = this;
  30   return function() {
  31         return __method.apply(object, arguments);
  32   }
  33 }
  34
  35 function $() {
  36   var elements = new Array();
  37
  38   for (var i = 0; i < arguments.length; i++) {
  39         var element = arguments[i];
  40         if (typeof element == 'string')
  41           element = document.getElementById(element);
  42
  43         if (arguments.length == 1)
  44           return element;
  45
  46         elements.push(element);
  47   }
  48
  49   return elements;
  50 }
  51
  52 //-------------------------
  53
  54 document.getElementsByClassName = function(className) {
  55   var children = document.getElementsByTagName('*') || document.all;
  56   var elements = new Array();
  57
  58   for (var i = 0; i < children.length; i++) {
  59         var child = children[i];
  60         var classNames = child.className.split(' ');
  61         for (var j = 0; j < classNames.length; j++) {
  62           if (classNames[j] == className) {
  63                 elements.push(child);
  64                 break;
  65           }
  66         }
  67   }
  68
  69   return elements;
  70 }
  71
  72 //-------------------------
  73
  74 if (!window.Element) {
  75   var Element = new Object();
  76 }
  77
  78 Object.extend(Element, {
  79   remove: function(element) {
  80         element = $(element);
  81         element.parentNode.removeChild(element);
  82   },
  83
  84   hasClassName: function(element, className) {
  85         element = $(element);
  86         if (!element)
  87           return;
  88         var a = element.className.split(' ');
  89         for (var i = 0; i < a.length; i++) {
  90           if (a[i] == className)
  91                 return true;
  92         }
  93         return false;
  94   },
  95
  96   addClassName: function(element, className) {
  97         element = $(element);
  98         Element.removeClassName(element, className);
  99         element.className += ' ' + className;
 100   },
 101
 102   removeClassName: function(element, className) {
 103         element = $(element);
 104         if (!element)
 105           return;
 106         var newClassName = '';
 107         var a = element.className.split(' ');
 108         for (var i = 0; i < a.length; i++) {
 109           if (a[i] != className) {
 110                 if (i > 0)
 111                   newClassName += ' ';
 112                 newClassName += a[i];
 113           }
 114         }
 115         element.className = newClassName;
 116   },
 117
 118   // removes whitespace-only text node children
 119   cleanWhitespace: function(element) {
 120         element = $(element);
 121         for (var i = 0; i < element.childNodes.length; i++) {
 122           var node = element.childNodes[i];
 123           if (node.nodeType == 3 && !/\S/.test(node.nodeValue))
 124                 Element.remove(node);
 125         }
 126   }
 127 });