Subversion Repositories Applications.papyrus

if(!dojo._hasResource["dojox.wire.ml.util"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.

dojo._hasResource["dojox.wire.ml.util"] = true;

dojo.provide("dojox.wire.ml.util");

dojo.require("dojox.data.dom");

dojo.require("dojox.wire.Wire");

dojox.wire.ml._getValue = function(/*String*/source, /*Array*/args){

	//	summary:

	//		Return a value

	//	description:

	//		This method obtains an object by an ID of a widget or an DOM

	//		element.

	//		If 'source' specifies a dotted notation to its property, a Wire is

	//		used to get the object property.

	//		If 'source' starts with "arguments", 'args' is used as a root

	//		object for the Wire.

	//	source:

	//		A string to specify an object and its property

	//	args:

	//		An optional arguments array

	//	returns:

	//		A value

	if(!source){

		return undefined; //undefined

	}

	var property = undefined;

	if(args && source.length >= 9 && source.substring(0, 9) == "arguments"){

		property = source.substring(9);

		return new dojox.wire.Wire({property: property}).getValue(args);

	}

	var i = source.indexOf('.');

	if(i >= 0){

		property = source.substring(i + 1);

		source = source.substring(0, i);

	}

	var object = (dijit.byId(source) || dojo.byId(source) || dojo.getObject(source));

	if(!object){

		return undefined; //undefined

	}

	if(!property){

		return object; //Object

	}else{

		return new dojox.wire.Wire({object: object, property: property}).getValue(); //anything

	}

};

dojox.wire.ml._setValue = function(/*String*/target, /*anything*/value){

	//	summary:

	//		Store a value

	//	description:

	//		This method stores a value by an ID of a widget or an DOM

	//		element with a dotted notation to its property, using a Wire.

	//	target:

	//		A string to specify an object and its property

	//	value:

	//		A value

	if(!target){

		return; //undefined

	}

	var i = target.indexOf('.');

	if(i < 0){

		return; //undefined

	}

	var object = this._getValue(target.substring(0, i));

	if(!object){

		return; //undefined

	}

	var property = target.substring(i + 1);

	new dojox.wire.Wire({object: object, property: property}).setValue(value);

};

dojo.declare("dojox.wire.ml.XmlElement", null, {

	//	summary:

	//		An object wrapping an XML element

	//	description:

	//		This class represents an XML element.

	constructor: function(/*Element||String*/element){

		//	summary:

		//		Initialize with an XML element or a tag name

		//	element:

		//		An XML element or a tag name

		if(dojo.isString(element)){

			element = this._getDocument().createElement(element);

		}

		this.element = element;

	},

	getPropertyValue: function(/*String*/property){

		//	summary:

		//		Return a property value

		//	description:

		//		If 'property' starts with '@', the attribute value is returned.

		//		If 'property' specifies "text()", the value of the first child

		//		text is returned.

		//		Otherwise, child elements of the tag name specified with

		//		'property' are returned.

		//	property:

		//		A property name

		//	returns:

		//		A property value

		var value = undefined;

		if(!this.element){

			return value; //undefined

		}

		if(!property){

			return value; //undefined

		}

		if(property.charAt(0) == '@'){

			var attribute = property.substring(1);

			value = this.element.getAttribute(attribute);

		}else if(property == "text()"){

			var text = this.element.firstChild;

			if(text){

				value = text.nodeValue;

			}

		}else{ // child elements

			var elements = [];

			for(var i = 0; i < this.element.childNodes.length; i++){

				var child = this.element.childNodes[i];

				if(child.nodeType === 1 /* ELEMENT_NODE */ && child.nodeName == property){

					elements.push(new dojox.wire.ml.XmlElement(child));

				}

			}

			if(elements.length > 0){

				if(elements.length === 1){

					value = elements[0];

				}else{

					value = elements;

				}

			}

		}

		return value; //String||Array||XmlElement

	},

	setPropertyValue: function(/*String*/property, /*String||Array||XmlElement*/value){

		//	summary:

		//		Store a property value

		//	description:

		//		If 'property' starts with '@', 'value' is set to the attribute.

		//		If 'property' specifies "text()", 'value' is set as the first

		//		child text.

		//		If 'value' is a string, a child element of the tag name

		//		specified with 'property' is created and 'value' is set as

		//		the first child text of the child element.

		//		Otherwise, 'value' is set to as child elements.

		//	property:

		//		A property name

		//	value:

		//		A property value

		if(!this.element){

			return; //undefined

		}

		if(!property){

			return; //undefined

		}

		if(property.charAt(0) == '@'){

			var attribute = property.substring(1);

			if(value){

				this.element.setAttribute(attribute, value);

			}else{

				this.element.removeAttribute(attribute);

			}

		}else if(property == "text()"){

			while(this.element.firstChild){

				this.element.removeChild(this.element.firstChild);

			}

			if(value){

				var text = this._getDocument().createTextNode(value);

				this.element.appendChild(text);

			}

		}else{ // child elements

			var nextChild = null;

			for(var i = this.element.childNodes.length - 1; i >= 0; i--){

				var child = this.element.childNodes[i];

				if(child.nodeType === 1 /* ELEMENT_NODE */ && child.nodeName == property){

					if(!nextChild){

						nextChild = child.nextSibling;

					}

					this.element.removeChild(child);

				}

			}

			if(value){

				if(dojo.isArray(value)){

					for(var i in value){

						var e = value[i];

						if(e.element){

							this.element.insertBefore(e.element, nextChild);

						}

					}

				}else if(value instanceof dojox.wire.ml.XmlElement){

					if(value.element){

						this.element.insertBefore(value.element, nextChild);

					}

				}else{ // assume string

					var child = this._getDocument().createElement(property);

					var text = this._getDocument().createTextNode(value);

					child.appendChild(text);

					this.element.insertBefore(child, nextChild);

				}

			}

		}

	},

	toString: function(){

		//	summary:

		//		Return a value of the first text child of the element

		//	description:

		//		A value of the first text child of the element is returned.

		//	returns:

		//		A value of the first text child of the element

		var s = "";

		if(this.element){

			var text = this.element.firstChild;

			if(text){

				s = text.nodeValue;

			}

		}

		return s; //String

	},

	toObject: function(){

		//	summary:

		//		Return an object representation of the element

		//	description:

		//		An object with properties for child elements, attributes and

		//		text is returned.

		//	returns:

		//		An object representation of the element

		if(!this.element){

			return null; //null

		}

		var text = "";

		var obj = {};

		var elements = 0;

		for(var i = 0; i < this.element.childNodes.length; i++){

			var child = this.element.childNodes[i];

			if(child.nodeType === 1 /* ELEMENT_NODE */){

				elements++;

				var o = new dojox.wire.ml.XmlElement(child).toObject();

				var name = child.nodeName;

				var p = obj[name];

				if(!p){

					obj[name] = o;

				}else if(dojo.isArray(p)){

					p.push(o);

				}else{

					obj[name] = [p, o]; // make them array

				}

			}else if(child.nodeType === 3 /* TEXT_NODE */ ||

					 child.nodeType === 4 /* CDATA_SECTION_NODE */){

				text += child.nodeValue;

			}

		}

		var attributes = 0;

		if(this.element.nodeType === 1 /* ELEMENT_NODE */){

			attributes = this.element.attributes.length;

			for(var i = 0; i < attributes; i++){

				var attr = this.element.attributes[i];

				obj["@" + attr.nodeName] = attr.nodeValue;

			}

		}

		if(elements === 0){

			if(attributes === 0){

				// text only

				return text; //String

			}

			// text with attributes

			obj["text()"] = text;

		}

		// else ignore text

		return obj; //Object

	},

	_getDocument: function(){

		//	summary:

		//		Return a DOM document

		//	description:

		//		If 'element' is specified, a DOM document of the element is

		//		returned.

		//		Otherwise, a DOM document is created.

		//	returns:

		//		A DOM document

		if(this.element){

			return (this.element.nodeType == 9 /* DOCUMENT_NODE */ ?

				this.element : this.element.ownerDocument); //Document

		}else{

			return dojox.data.dom.createDocument(); //Document

		}

	}

});

}