flymis/WebRoot/dojojs/src/widget/Parse.js

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/*
	Copyright (c) 2004-2006, The Dojo Foundation
	All Rights Reserved.

	Licensed under the Academic Free License version 2.1 or above OR the
	modified BSD license. For more information on Dojo licensing, see:

		http://dojotoolkit.org/community/licensing.shtml
*/

dojo.provide("dojo.widget.Parse");
dojo.require("dojo.widget.Manager");
dojo.require("dojo.dom");

//
// dojoML parser should be moved out of 'widget', codifying the difference between a 'component'
// and a 'widget'. A 'component' being anything that can be generated from a tag.
//
// a particular dojoML tag would be handled by a registered tagHandler with a hook for a default handler
// if the widget system is loaded, a widget builder would be attach itself as the default handler
// 
// widget tags are no longer registered themselves:
// they are now arbitrarily namespaced, so we cannot register them all, and the non-prefixed portions 
// are no longer guaranteed unique 
// 
// therefore dojo.widget.tags should go with this parser code out of the widget module
//

dojo.widget.Parse = function(fragment){
	this.propertySetsList = [];
	this.fragment = fragment;
	
	this.createComponents = function(frag, parentComp){
		var comps = [];
		var built = false;
		// if we have items to parse/create at this level, do it!
		try{
			if((frag)&&(frag["tagName"])&&(frag!=frag["nodeRef"])){
				
				// these are in fact, not ever for widgets per-se anymore, 
				// but for other markup elements (aka components)
				var djTags = dojo.widget.tags;
				
				// we split so that you can declare multiple 
				// non-destructive components from the same ctor node
				var tna = String(frag["tagName"]).split(";");
				for(var x=0; x<tna.length; x++){
					var ltn = (tna[x].replace(/^\s+|\s+$/g, "")).toLowerCase();
					// FIXME: unsure what this does
					frag.tagName = ltn;
					if(djTags[ltn]){
						built = true;
						var ret = djTags[ltn](frag, this, parentComp, frag["index"]);
						comps.push(ret);
					} else {
						// we require a namespace prefix, default to dojo:
						if (ltn.indexOf(":") == -1){
							ltn = "dojo:"+ltn;
						}
						// FIXME: handling failure condition correctly?