GZ/nwyj/.svn/pristine/82/821a4a795a4e5b2f514167b0254bd8c33594fa32.svn-base

if (!dojo._hasResource["dijit._base.manager"]) { // _hasResource checks added
													// by build. Do not use
													// _hasResource directly in
													// your code.
	dojo._hasResource["dijit._base.manager"] = true;
	dojo.provide("dijit._base.manager");

	dojo.declare("dijit.WidgetSet", null, {
				constructor : function() {
					// summary:
					// A set of widgets indexed by id
					this._hash = {};
				},

				add : function(/* Widget */widget) {
					if (this._hash[widget.id]) {
						throw new Error("Tried to register widget with id=="
								+ widget.id
								+ " but that id is already registered");
					}
					this._hash[widget.id] = widget;
				},

				remove : function(/* String */id) {
					delete this._hash[id];
				},

				forEach : function(/* Function */func) {
					for (var id in this._hash) {
						func(this._hash[id]);
					}
				},

				filter : function(/* Function */filter) {
					var res = new dijit.WidgetSet();
					this.forEach(function(widget) {
								if (filter(widget)) {
									res.add(widget);
								}
							});
					return res; // dijit.WidgetSet
				},

				byId : function(/* String */id) {
					return this._hash[id];
				},

				byClass : function(/* String */cls) {
					return this.filter(function(widget) {
								return widget.declaredClass == cls;
							}); // dijit.WidgetSet
				}
			});

	// registry: list of all widgets on page
	dijit.registry = new dijit.WidgetSet();

	dijit._widgetTypeCtr = {};

	dijit.getUniqueId = function(/* String */widgetType) {
		// summary
		// Generates a unique id for a given widgetType

		var id;
		do {
			id = widgetType
					+ "_"
					+ (dijit._widgetTypeCtr[widgetType] !== undefined
							? ++dijit._widgetTypeCtr[widgetType]
							: dijit._widgetTypeCtr[widgetType] = 0);
		} while (dijit.byId(id));
		return id; // String
	};

	if (dojo.isIE) {
		// Only run this for IE because we think it's only necessary in that
		// case,
		// and because it causes problems on FF. See bug #3531 for details.
		dojo.addOnUnload(function() {
					dijit.registry.forEach(function(widget) {
								widget.destroy();
							});
				});
	}

	dijit.byId = function(/* String|Widget */id) {
		// summary:
		// Returns a widget by its id, or if passed a widget, no-op (like
		// dojo.byId())
		return (dojo.isString(id)) ? dijit.registry.byId(id) : id; // Widget
	};

	dijit.byNode = function(/* DOMNode */node) {
		// summary:
		// Returns the widget as referenced by node
		return dijit.registry.byId(node.getAttribute("widgetId")); // Widget
	};

	dijit.getEnclosingWidget = function(/* DOMNode */node) {
		// summary:
		// Returns the widget whose dom tree contains node or null if
		// the node is not contained within the dom tree of any widget
		while (node) {
			if (node.getAttribute && node.getAttribute("widgetId")) {
				return dijit.registry.byId(node.getAttribute("widgetId"));
			}
			node = node.parentNode;
		}
		return null;
	};

}