GZ/nwyj/WebContent/admin/scripts/dojo/dojox/wire/_base.js

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

	dojox.wire._defaultWireClass = "dojox.wire.Wire";

	dojox.wire._wireClasses = {
		"attribute" : "dojox.wire.DataWire",
		"path" : "dojox.wire.XmlWire",
		"children" : "dojox.wire.CompositeWire",
		"columns" : "dojox.wire.TableAdapter",
		"nodes" : "dojox.wire.TreeAdapter",
		"segments" : "dojox.wire.TextAdapter"
	};

	dojox.wire.register = function(/* Function||String */wireClass, /* String */
			key) {
		// summary:
		// Register a Wire class
		// desription:
		// The specified Wire class or a class name is registered with
		// a key property of arguments to create a Wire
		// wireClass:
		// A class or full qualified class name
		// key:
		// A key property of arguments to create a Wire
		if (!wireClass || !key) {
			return; // undefined
		}
		if (dojox.wire._wireClasses[key]) { // key already in use
			return; // undefined
		}
		dojox.wire._wireClasses[key] = wireClass;
	};

	dojox.wire._getClass = function(/* String */name) {
		// summary:
		// Returns a class
		// description:
		// The class is loaded by dojo.require() and returned
		// by dojo.getObject().
		// name:
		// A class name
		// returns:
		// A class
		dojo["require"](name); // use dojo["require"] instead of dojo.require
								// to avoid a build problem
		return dojo.getObject(name); // Function
	};

	dojox.wire.create = function(/* Object */args) {
		// summary:
		// Create a Wire from arguments
		// description:
		// If 'args' specifies 'wireClass', it is used as a class or full
		// qualified class name to create a Wire with 'args' as arguments.
		// Otherwise, a Wire class is determined by other proeprties of 'args'
		// checking if 'args' specifies a key property for a Wire class.
		// If no key property found, the default Wire class is used.
		// args:
		// Arguments to create a Wire
		// returns:
		// A Wire
		if (!args) {
			args = {};
		}
		var wireClass = args.wireClass;
		if (wireClass) {
			if (dojo.isString(wireClass)) {
				wireClass = dojox.wire._getClass(wireClass);
			}
		} else {
			for (var key in args) {
				if (!args[key]) {
					continue;
				}
				wireClass = dojox.wire._wireClasses[key];
				if (wireClass) {
					if (dojo.isString(wireClass)) {
						wireClass = dojox.wire._getClass(wireClass);
						dojox.wire._wireClasses[key] = wireClass;
					}
					break;
				}
			}
		}
		if (!wireClass) {
			if (dojo.isString(dojox.wire._defaultWireClass)) {
				dojox.wire._defaultWireClass = dojox.wire
						._getClass(dojox.wire._defaultWireClass);
			}
			wireClass = dojox.wire._defaultWireClass;
		}
		return new wireClass(args); // Object
	};

	dojox.wire.isWire = function(/* Object */wire) {
		// summary:
		// Check if an object is a Wire
		// description:
		// If the specified object is a Wire, true is returned.
		// Otherwise, false is returned.
		// wire:
		// An object to check
		// returns:
		// True if the object is a Wire, otherwise false
		return (wire && wire._wireClass); // Boolean
	};

	dojox.wire.transfer = function(/* Wire||Object */source, /* Wire||Object */
			target, /* Object? */defaultObject, /* Object? */defaultTargetObject) {
		// summary:
		// Transfer a source value to a target value
		// description:
		// If 'source' and/or 'target' are not Wires, Wires are created with
		// them as arguments.
		// A value is got through the source Wire and set through the target
		// Wire.
		// 'defaultObject' is passed to Wires as a default root object.
		// If 'defaultTargetObject' is specified, it is passed to the target
		// Wire as a default root object, instead of 'defaultObject'.
		// source:
		// A Wire or arguments to create a Wire for a source value
		// target:
		// A Wire or arguments to create a Wire for a target value
		// defaultObject:
		// defaultTargetObject;
		// Optional default root objects passed to Wires
		if (!source || !target) {
			return; // undefined
		}
		if (!dojox.wire.isWire(source)) {
			source = dojox.wire.create(source);
		}
		if (!dojox.wire.isWire(target)) {
			target = dojox.wire.create(target);
		}

		var value = source.getValue(defaultObject);
		target.setValue(value, (defaultTargetObject || defaultObject));
	};

	dojox.wire.connect = function(/* Object */trigger, /* Wire||Object */source, /* Wire||Object */
			target) {
		// summary:
		// Transfer a source value to a target value on a trigger event or
		// topic
		// description:
		// If 'trigger' specifies 'topic', the topic is subscribed to transer
		// a value on the topic.
		// Otherwise, the event specified to 'event' of 'trigger' is listened
		// to transfer a value.
		// On the specified event or topic, transfer() is called with
		// 'source', 'target' and the arguments of the event or topic (as
		// default root objects).
		// trigger:
		// An event or topic to trigger a transfer
		// source:
		// A Wire or arguments to create a Wire for a source value
		// target:
		// A Wire or arguments to create a Wire for a target value
		// returns:
		// A connection handle for disconnect()
		if (!trigger || !source || !target) {
			return; // undefined
		}

		var connection = {
			topic : trigger.topic
		};
		if (trigger.topic) {
			connection.handle = dojo.subscribe(trigger.topic, function() {
						dojox.wire.transfer(source, target, arguments);
					});
		} else if (trigger.event) {
			connection.handle = dojo.connect(trigger.scope, trigger.event,
					function() {
						dojox.wire.transfer(source, target, arguments);
					});
		}
		return connection; // Object
	};

	dojox.wire.disconnect = function(/* Object */connection) {
		// summary:
		// Remove a connection or subscription for transfer
		// description:
		// If 'handle' has 'topic', the topic is unsubscribed.
		// Otherwise, the listener to an event is removed.
		// connection:
		// A connection handle returned by connect()
		if (!connection || !connection.handle) {
			return; // undefined
		}

		if (connection.topic) {
			dojo.unsubscribe(connection.handle);
		} else {
			dojo.disconnect(connection.handle);
		}
	};

}