dojo_app/js/library/dojox/mobile/parser.js

define([
	"dojo/_base/kernel",
	"dojo/_base/array",
	"dojo/_base/config",
	"dojo/_base/lang",
	"dojo/_base/window",
	"dojo/ready"
], function(dojo, array, config, lang, win, ready){

	// module:
	//		dojox/mobile/parser

	var dm = lang.getObject("dojox.mobile", true);

	var Parser = function(){
		// summary:
		//		A lightweight parser.
		// description:
		//		dojox/mobile/parser is an extremely small subset of dojo/parser.
		//		It has no additional features over dojo/parser, so there is no
		//		benefit in terms of features by using dojox/mobile/parser instead 
		//		of dojo/parser.	However, if dojox/mobile/parser's capabilities are
		//		enough for your	application, using it could reduce the total code size.

		var _ctorMap = {};
		var getCtor = function(type, mixins){
			if(typeof(mixins) === "string"){
				var t = type + ":" + mixins.replace(/ /g, "");
				return _ctorMap[t] ||
					(_ctorMap[t] = getCtor(type).createSubclass(array.map(mixins.split(/, */), getCtor)));
			}
			return _ctorMap[type] || (_ctorMap[type] = lang.getObject(type) || require(type));
		};
		var _eval = function(js){ return eval(js); };

		this.instantiate = function(/* DomNode[] */nodes, /* Object? */mixin, /* Object? */options){
			// summary:
			//		Function for instantiating a list of widget nodes.
			// nodes:
			//		The list of DomNodes to walk and instantiate widgets on.
			mixin = mixin || {};
			options = options || {};
			var i, ws = [];
			if(nodes){
				for(i = 0; i < nodes.length; i++){
					var n = nodes[i],
						type = n._type,
						ctor = getCtor(type, n.getAttribute("data-dojo-mixins")),
						proto = ctor.prototype,
						params = {}, prop, v, t;
					lang.mixin(params, _eval.call(options.propsThis, '({'+(n.getAttribute("data-dojo-props")||"")+'})'));
					lang.mixin(params, options.defaults);
					lang.mixin(params, mixin);
					for(prop in proto){
						v = n.getAttributeNode(prop);
						v = v && v.nodeValue;
						t = typeof proto[prop];
						if(!v && (t !== "boolean" || v !== "")){ continue; }
						if(lang.isArray(proto[prop])){
							params[prop] = v.split(/\s*,\s*/);
						}else if(t === "string"){
							params[prop] = v;
						}else if(t === "number"){
							params[prop] = v - 0;
						}else if(t === "boolean"){
							params[prop] = (v !== "false");
						}else if(t === "object"){
							params[prop] = eval("(" + v + ")");
						}else if(t === "function"){
							params[prop] = lang.getObject(v, false) || new Function(v);
							n.removeAttribute(prop);
						}
					}
					params["class"] = n.className;
					if(!params.style){ params.style = n.style.cssText; }
					v = n.getAttribute("data-dojo-attach-point");
					if(v){ params.dojoAttachPoint = v; }
					v = n.getAttribute("data-dojo-attach-event");
					if(v){ params.dojoAttachEvent = v; }
					var instance = new ctor(params, n);
					ws.push(instance);
					var jsId = n.getAttribute("jsId") || n.getAttribute("data-dojo-id");
					if(jsId){
						lang.setObject(jsId, instance);
					}
				}
				for(i = 0; i < ws.length; i++){
					var w = ws[i];
					!options.noStart && w.startup && !w._started && w.startup();
				}
			}
			return ws;
		};

		this.parse = function(/* DomNode */ rootNode, /* Object? */ options){
			// summary:
			//		Function to handle parsing for widgets in the current document.
			//		It is not as powerful as the full parser, but it will handle basic
			//		use cases fine.
			// rootNode:
			//		The root node in the document to parse from
			if(!rootNode){
				rootNode = win.body();
			}else if(!options && rootNode.rootNode){
				// Case where 'rootNode' is really a params object.
				options = rootNode;
				rootNode = rootNode.rootNode;
			}

			var nodes = rootNode.getElementsByTagName("*");
			var i, j, list = [];
			for(i = 0; i < nodes.length; i++){
				var n = nodes[i],
					type = (n._type = n.getAttribute("dojoType") || n.getAttribute("data-dojo-type"));
				if(type){
					if(n._skip){
						n._skip = "";
						continue;
					}
					if(getCtor(type).prototype.stopParser && !(options && options.template)){
						var arr = n.getElementsByTagName("*");
						for(j = 0; j < arr.length; j++){
							arr[j]._skip = "1";
						}
					}
					list.push(n);
				}
			}
			var mixin = options && options.template ? {template: true} : null;
			return this.instantiate(list, mixin, options);
		};
	};

	// Singleton.   (TODO: replace parser class and singleton w/a simple hash of functions)
	var parser = new Parser();

	if(config.parseOnLoad){
		ready(100, function(){
			// Now that all the modules are loaded, check if the app loaded dojo/parser too.
			// If it did, let dojo/parser handle the parseOnLoad flag instead of me.
			try{
				if(!require("dojo/parser")){
					// IE6 takes this path when dojo/parser unavailable, rather than catch() block below,
					// due to http://support.microsoft.com/kb/944397
					parser.parse();
				}
			}catch(e){
				// Other browsers (and later versions of IE) take this path when dojo/parser unavailable
				parser.parse();
			}
		});
	}
	dm.parser = parser; // for backward compatibility
	dojo.parser = dojo.parser || parser; // in case user application calls dojo.parser

	return parser;
});