GZ/nwyj/WebContent/admin/scripts/dojo/dojox/widget/Iterator.js

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

	dojo.experimental("dojox.widget.Iterator"); // level: prototype, designed
												// for dijit.chat.demo

	/*
	 * example: from markup: | <span dojoType="dojo.data.ItemFileReadStore" |
	 * jsId="cstore" url="countries.json"></span> | | <div> | <div
	 * dojoType="dojox.widget.Iterator" store="cstore" | query="{ name: 'A*'}"> |
	 * ${name} is a ${type} | </div> | </div>
	 * 
	 * example: programmatic: | var store = new dojo.data.ItemFileReadStore({
	 * url: "countries.json" }); | | var iter = new dojox.widget.Iterator({ |
	 * store: store, | template: "" | }); |
	 * 
	 * example: programmatic from an array of objects: | var dataArr = [ | {
	 * name: "foo", valueAttr: "bar" }, | { name: "thinger", valueAttr: "blah" } | ]; | |
	 * var iter = new dojox.widget.Iterator({ | data: dataArr, | template: "" |
	 * });
	 * 
	 * example: programmatic from an array of strings: | var dataArr = [ | {
	 * name: "foo", valueAttr: "bar" }, | { name: "thinger", valueAttr: "blah" } | ]; | |
	 * var iter = new dojox.widget.Iterator({ | data: dataArr, | template: "" |
	 * });
	 * 
	 */

	dojo.declare("dojox.widget.Iterator", [dijit.Declaration], {

		constructor : (function() {
			var ctr = 0;
			return function() {
				this.attrs = [];
				this.children = [];
				this.widgetClass = "dojox.widget.Iterator._classes._" + (ctr++);
			}
		})(),

		start : 0,
		fetchMax : 1000,
		query : {
			name : "*"
		},
		attrs : [],
		defaultValue : "",
		widgetCtor : null,
		dataValues : [], // an array of strings
		data : null, // should be a reference to an Array
		store : null,
		_srcIndex : 0,
		_srcParent : null,

		_setSrcIndex : function(s) {
			this._srcIndex = 0;
			this._srcParent = s.parentNode;
			var ts = s;
			while (ts.previousSibling) {
				this._srcIndex++;
				ts = ts.previousSibling;
			};
		},

		postscript : function(p, s) {
			// figure out the position of the source node in it's parent
			this._setSrcIndex(s);
			// this._srcIndex = dojo.query(">", this._srcParent).indexOf(s);

			this.inherited("postscript", arguments);
			var wc = this.widgetCtor = dojo.getObject(this.widgetClass);

			this.attrs = dojo.map(wc.prototype.templateString
							.match(/\$\{([^\s\:\}]+)(?:\:([^\s\:\}]+))?\}/g),
					function(s) {
						return s.slice(2, -1);
					});
			dojo.forEach(this.attrs, function(m) {
						wc.prototype[m] = "";
					});
			this.update();
		},

		clear : function() {
			if (this.children.length) {
				this._setSrcIndex(this.children[0].domNode);
			}
			dojo.forEach(this.children, "item.destroy();");
			this.children = [];
		},

		update : function() {
			if (this.store) {
				// we're executing a query
				this.fetch();
			} else {
				// we came from an array of objects. Easier!
				this.onDataAvailable(this.data || this.dataValues);
			}
		},

		_addItem : function(/* Object */config, idx) {
			if (dojo.isString(config)) {
				config = {
					value : config
				};
			}
			var widget = new this.widgetCtor(config);
			this.children.push(widget);
			dojo.place(widget.domNode, this._srcParent, this._srcIndex + idx);
		},

		getAttrValuesObj : function(item) {
			var obj = {};
			if (dojo.isString(item)) {
				dojo.forEach(this.attrs, function(attr) {
							obj[attr] = (attr == "value")
									? item
									: this.defaultValue;
						}, this);
			} else {
				dojo.forEach(this.attrs, function(attr) {
							if (this.store) {
								obj[attr] = this.store.getValue(item, attr)
										|| this.defaultValue;
							} else {
								obj[attr] = item[attr] || this.defaultValue;
							}
						}, this);
			}
			return obj;
		},

		onDataAvailable : function(data) {
			this.clear();
			// console.debug(data);
			dojo.forEach(data, function(item, idx) {
						this._addItem(this.getAttrValuesObj(item), idx);
					}, this);
		},

		fetch : function(query, start, end) {
			this.store.fetch({
						query : query || this.query,
						start : start || this.start,
						count : end || this.fetchMax,
						onComplete : dojo.hitch(this, "onDataAvailable")
						,
					});
		}
	});

	dojox.widget.Iterator._classes = {};

}