flymis/WebRoot/dojojs/src/ns.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.ns");

dojo.ns = {
	// summary: private object that implements widget namespace management
	namespaces: {},
	failed: {},
	loading: {},
	loaded: {},
	register: function(/*String*/name, /*String*/module, /*Function?*/resolver, /*Boolean?*/noOverride){
		// summary: creates and registers a dojo.ns.Ns object
		if(!noOverride || !this.namespaces[name]){
			this.namespaces[name] = new dojo.ns.Ns(name, module, resolver);
		}
	},
	allow: function(/*String*/name){
		// summary: Returns false if 'name' is filtered by configuration or has failed to load, true otherwise
		if(this.failed[name]){return false;} // Boolean
		if((djConfig.excludeNamespace)&&(dojo.lang.inArray(djConfig.excludeNamespace, name))){return false;} // Boolean
		// If the namespace is "dojo", or the user has not specified allowed namespaces return true.
		// Otherwise, if the user has specifically allowed this namespace, return true, otherwise false.
		return((name==this.dojo)||(!djConfig.includeNamespace)||(dojo.lang.inArray(djConfig.includeNamespace, name))); // Boolean
	},
	get: function(/*String*/name){
		// summary
		//  Return Ns object registered to 'name', if any
		return this.namespaces[name]; // Ns
	},
	require: function(/*String*/name){
		// summary
  	//  Try to ensure that 'name' is registered, loading a namespace manifest if necessary
		var ns = this.namespaces[name];
		if((ns)&&(this.loaded[name])){return ns;} // Ns
		if(!this.allow(name)){return false;} // Boolean
 		if(this.loading[name]){
			// FIXME: do we really ever have re-entrancy situation? this would appear to be really bad
			// original code did not throw an exception, although that seems the only course
			// adding debug output here to track if this occurs.
			dojo.debug('dojo.namespace.require: re-entrant request to load namespace "' + name + '" must fail.'); 
			return false; // Boolean
		}
		// workaround so we don't break the build system
		var req = dojo.require;
		this.loading[name] = true;
		try {
			//dojo namespace file is always in the Dojo namespaces folder, not any custom folder
			if(name=="dojo"){
				req("dojo.namespaces.dojo");
			}else{
				// if no registered module prefix, use ../<name> by convention
				if(!dojo.hostenv.moduleHasPrefix(name)){