From e44a7e37b6c7b5961adaffc62b9042b8d442938e Mon Sep 17 00:00:00 2001
From: mensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f>
Date: Thu, 13 Nov 2008 09:49:11 +0000
Subject: New feature: basic Ajax suggestion for tags and implementation of
 Dojo toolkit

git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@151 b3834d28-1941-0410-a4f8-b48e95affb8f
---
 includes/js/dojo/parser.js | 277 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 277 insertions(+)
 create mode 100644 includes/js/dojo/parser.js

(limited to 'includes/js/dojo/parser.js')

diff --git a/includes/js/dojo/parser.js b/includes/js/dojo/parser.js
new file mode 100644
index 0000000..5394338
--- /dev/null
+++ b/includes/js/dojo/parser.js
@@ -0,0 +1,277 @@
+if(!dojo._hasResource["dojo.parser"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
+dojo._hasResource["dojo.parser"] = true;
+dojo.provide("dojo.parser");
+dojo.require("dojo.date.stamp");
+
+dojo.parser = new function(){
+	// summary: The Dom/Widget parsing package
+
+	var d = dojo;
+	var dtName = d._scopeName + "Type";
+	var qry = "[" + dtName + "]";
+
+	function val2type(/*Object*/ value){
+		// summary:
+		//		Returns name of type of given value.
+
+		if(d.isString(value)){ return "string"; }
+		if(typeof value == "number"){ return "number"; }
+		if(typeof value == "boolean"){ return "boolean"; }
+		if(d.isFunction(value)){ return "function"; }
+		if(d.isArray(value)){ return "array"; } // typeof [] == "object"
+		if(value instanceof Date) { return "date"; } // assume timestamp
+		if(value instanceof d._Url){ return "url"; }
+		return "object";
+	}
+
+	function str2obj(/*String*/ value, /*String*/ type){
+		// summary:
+		//		Convert given string value to given type
+		switch(type){
+			case "string":
+				return value;
+			case "number":
+				return value.length ? Number(value) : NaN;
+			case "boolean":
+				// for checked/disabled value might be "" or "checked".  interpret as true.
+				return typeof value == "boolean" ? value : !(value.toLowerCase()=="false");
+			case "function":
+				if(d.isFunction(value)){
+					// IE gives us a function, even when we say something like onClick="foo"
+					// (in which case it gives us an invalid function "function(){ foo }"). 
+					//  Therefore, convert to string
+					value=value.toString();
+					value=d.trim(value.substring(value.indexOf('{')+1, value.length-1));
+				}
+				try{
+					if(value.search(/[^\w\.]+/i) != -1){
+						// TODO: "this" here won't work
+						value = d.parser._nameAnonFunc(new Function(value), this);
+					}
+					return d.getObject(value, false);
+				}catch(e){ return new Function(); }
+			case "array":
+				return value.split(/\s*,\s*/);
+			case "date":
+				switch(value){
+					case "": return new Date("");	// the NaN of dates
+					case "now": return new Date();	// current date
+					default: return d.date.stamp.fromISOString(value);
+				}
+			case "url":
+				return d.baseUrl + value;
+			default:
+				return d.fromJson(value);
+		}
+	}
+
+	var instanceClasses = {
+		// map from fully qualified name (like "dijit.Button") to structure like
+		// { cls: dijit.Button, params: {label: "string", disabled: "boolean"} }
+	};
+	
+	function getClassInfo(/*String*/ className){
+		// className:
+		//		fully qualified name (like "dijit.Button")
+		// returns:
+		//		structure like
+		//			{ 
+		//				cls: dijit.Button, 
+		//				params: { label: "string", disabled: "boolean"}
+		//			}
+
+		if(!instanceClasses[className]){
+			// get pointer to widget class
+			var cls = d.getObject(className);
+			if(!d.isFunction(cls)){
+				throw new Error("Could not load class '" + className +
+					"'. Did you spell the name correctly and use a full path, like 'dijit.form.Button'?");
+			}
+			var proto = cls.prototype;
+	
+			// get table of parameter names & types
+			var params={};
+			for(var name in proto){
+				if(name.charAt(0)=="_"){ continue; } 	// skip internal properties
+				var defVal = proto[name];
+				params[name]=val2type(defVal);
+			}
+
+			instanceClasses[className] = { cls: cls, params: params };
+		}
+		return instanceClasses[className];
+	}
+
+	this._functionFromScript = function(script){
+		var preamble = "";
+		var suffix = "";
+		var argsStr = script.getAttribute("args");
+		if(argsStr){
+			d.forEach(argsStr.split(/\s*,\s*/), function(part, idx){
+				preamble += "var "+part+" = arguments["+idx+"]; ";
+			});
+		}
+		var withStr = script.getAttribute("with");
+		if(withStr && withStr.length){
+			d.forEach(withStr.split(/\s*,\s*/), function(part){
+				preamble += "with("+part+"){";
+				suffix += "}";
+			});
+		}
+		return new Function(preamble+script.innerHTML+suffix);
+	}
+
+	this.instantiate = function(/* Array */nodes){
+		// summary:
+		//		Takes array of nodes, and turns them into class instances and
+		//		potentially calls a layout method to allow them to connect with
+		//		any children		
+		var thelist = [];
+		d.forEach(nodes, function(node){
+			if(!node){ return; }
+			var type = node.getAttribute(dtName);
+			if((!type)||(!type.length)){ return; }
+			var clsInfo = getClassInfo(type);
+			var clazz = clsInfo.cls;
+			var ps = clazz._noScript||clazz.prototype._noScript;
+
+			// read parameters (ie, attributes).
+			// clsInfo.params lists expected params like {"checked": "boolean", "n": "number"}
+			var params = {};
+			var attributes = node.attributes;
+			for(var name in clsInfo.params){
+				var item = attributes.getNamedItem(name);
+				if(!item || (!item.specified && (!dojo.isIE || name.toLowerCase()!="value"))){ continue; }
+				var value = item.value;
+				// Deal with IE quirks for 'class' and 'style'
+				switch(name){
+				case "class":
+					value = node.className;
+					break;
+				case "style":
+					value = node.style && node.style.cssText; // FIXME: Opera?
+				}
+				var _type = clsInfo.params[name];
+				params[name] = str2obj(value, _type);
+			}
+
+			// Process <script type="dojo/*"> script tags
+			// <script type="dojo/method" event="foo"> tags are added to params, and passed to
+			// the widget on instantiation.
+			// <script type="dojo/method"> tags (with no event) are executed after instantiation
+			// <script type="dojo/connect" event="foo"> tags are dojo.connected after instantiation
+			// note: dojo/* script tags cannot exist in self closing widgets, like <input />
+			if(!ps){
+				var connects = [],	// functions to connect after instantiation
+					calls = [];		// functions to call after instantiation
+
+				d.query("> script[type^='dojo/']", node).orphan().forEach(function(script){
+					var event = script.getAttribute("event"),
+						type = script.getAttribute("type"),
+						nf = d.parser._functionFromScript(script);
+					if(event){
+						if(type == "dojo/connect"){
+							connects.push({event: event, func: nf});
+						}else{
+							params[event] = nf;
+						}
+					}else{
+						calls.push(nf);
+					}
+				});
+			}
+
+			var markupFactory = clazz["markupFactory"];
+			if(!markupFactory && clazz["prototype"]){
+				markupFactory = clazz.prototype["markupFactory"];
+			}
+			// create the instance
+			var instance = markupFactory ? markupFactory(params, node, clazz) : new clazz(params, node);
+			thelist.push(instance);
+
+			// map it to the JS namespace if that makes sense
+			var jsname = node.getAttribute("jsId");
+			if(jsname){
+				d.setObject(jsname, instance);
+			}
+
+			// process connections and startup functions
+			if(!ps){
+				d.forEach(connects, function(connect){
+					d.connect(instance, connect.event, null, connect.func);
+				});
+				d.forEach(calls, function(func){
+					func.call(instance);
+				});
+			}
+		});
+
+		// Call startup on each top level instance if it makes sense (as for
+		// widgets).  Parent widgets will recursively call startup on their
+		// (non-top level) children
+		d.forEach(thelist, function(instance){
+			if(	instance  && 
+				instance.startup &&
+				!instance._started && 
+				(!instance.getParent || !instance.getParent())
+			){
+				instance.startup();
+			}
+		});
+		return thelist;
+	};
+
+	this.parse = function(/*DomNode?*/ rootNode){
+		// summary:
+		//		Search specified node (or root node) recursively for class instances,
+		//		and instantiate them Searches for
+		//		dojoType="qualified.class.name"
+		var list = d.query(qry, rootNode);
+		// go build the object instances
+		var instances = this.instantiate(list);
+		return instances;
+	};
+}();
+
+//Register the parser callback. It should be the first callback
+//after the a11y test.
+
+(function(){
+	var parseRunner = function(){ 
+		if(dojo.config["parseOnLoad"] == true){
+			dojo.parser.parse(); 
+		}
+	};
+
+	// FIXME: need to clobber cross-dependency!!
+	if(dojo.exists("dijit.wai.onload") && (dijit.wai.onload === dojo._loaders[0])){
+		dojo._loaders.splice(1, 0, parseRunner);
+	}else{
+		dojo._loaders.unshift(parseRunner);
+	}
+})();
+
+//TODO: ported from 0.4.x Dojo.  Can we reduce this?
+dojo.parser._anonCtr = 0;
+dojo.parser._anon = {}; // why is this property required?
+dojo.parser._nameAnonFunc = function(/*Function*/anonFuncPtr, /*Object*/thisObj){
+	// summary:
+	//		Creates a reference to anonFuncPtr in thisObj with a completely
+	//		unique name. The new name is returned as a String. 
+	var jpn = "$joinpoint";
+	var nso = (thisObj|| dojo.parser._anon);
+	if(dojo.isIE){
+		var cn = anonFuncPtr["__dojoNameCache"];
+		if(cn && nso[cn] === anonFuncPtr){
+			return anonFuncPtr["__dojoNameCache"];
+		}
+	}
+	var ret = "__"+dojo.parser._anonCtr++;
+	while(typeof nso[ret] != "undefined"){
+		ret = "__"+dojo.parser._anonCtr++;
+	}
+	nso[ret] = anonFuncPtr;
+	return ret; // String
+}
+
+}
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