1 // Copyright (c) 2005 Thomas Fuchs (http://script.aculo.us, http://mir.aculo.us)
3 // See scriptaculous.js for full license.
22 // note: For Firefox < 1.5, OPTION and OPTGROUP tags are currently broken,
23 // due to a Firefox bug
24 node: function(elementName) {
25 elementName = elementName.toUpperCase();
27 // try innerHTML approach
28 var parentTag = this.NODEMAP[elementName] || 'div';
29 var parentElement = document.createElement(parentTag);
30 try { // prevent IE "feature": http://dev.rubyonrails.org/ticket/2707
31 parentElement.innerHTML = "<" + elementName + "></" + elementName + ">";
33 var element = parentElement.firstChild || null;
35 // see if browser added wrapping tags
36 if(element && (element.tagName != elementName))
37 element = element.getElementsByTagName(elementName)[0];
39 // fallback to createElement approach
40 if(!element) element = document.createElement(elementName);
42 // abort if nothing could be created
45 // attributes (or text)
47 if(this._isStringOrNumber(arguments[1]) ||
48 (arguments[1] instanceof Array)) {
49 this._children(element, arguments[1]);
51 var attrs = this._attributes(arguments[1]);
53 try { // prevent IE "feature": http://dev.rubyonrails.org/ticket/2707
54 parentElement.innerHTML = "<" +elementName + " " +
55 attrs + "></" + elementName + ">";
57 element = parentElement.firstChild || null;
58 // workaround firefox 1.0.X bug
60 element = document.createElement(elementName);
61 for(attr in arguments[1])
62 element[attr == 'class' ? 'className' : attr] = arguments[1][attr];
64 if(element.tagName != elementName)
65 element = parentElement.getElementsByTagName(elementName)[0];
69 // text, or array of children
71 this._children(element, arguments[2]);
75 _text: function(text) {
76 return document.createTextNode(text);
78 _attributes: function(attributes) {
80 for(attribute in attributes)
81 attrs.push((attribute=='className' ? 'class' : attribute) +
82 '="' + attributes[attribute].toString().escapeHTML() + '"');
83 return attrs.join(" ");
85 _children: function(element, children) {
86 if(typeof children=='object') { // array can hold nodes and text
87 children.flatten().each( function(e) {
88 if(typeof e=='object')
89 element.appendChild(e)
91 if(Builder._isStringOrNumber(e))
92 element.appendChild(Builder._text(e));
95 if(Builder._isStringOrNumber(children))
96 element.appendChild(Builder._text(children));
98 _isStringOrNumber: function(param) {
99 return(typeof param=='string' || typeof param=='number');