GZ/nwyj/WebContent/admin/scripts/dojo/dojox/wire/ml/util.js

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
			}
		}
	});

}