tweaking...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>

ui (gen4)/features/ui-widgets.js

@@ -1100,19 +1100,21 @@ function(title, options){
 		: args.shift()
 	options = args.shift() || {}
 
-	return this.field(title, value,
-		Object.assign(
-			options,
-			{
+	// user open handler...
+	var open = options.open
+	// toggler default settings...
+	var toggler_defaults = options.__toggle_setup ?
+		{}
+		: {
+			__toggler_setup: true,
+
 			// XXX do we need a .type ???
 			//type: options.type || 'toggle',
 
-				// XXX need to:
-				// 		- call options.open if it exists...
-				// 		- do not define this if we already did...
-				// 			...currently this is added to handlers on 
-				// 			every .dialog.update(..)...
 			open: function(evt){
+				open 
+					&& open.call(this, ...arguments)
+
 				// XXX CONTEXT...
 				var actions = options.app || that.app
 
@@ -1204,8 +1206,12 @@ function(title, options){
 				} else {
 					// XXX should we be able to toggle values back???
 					set(values[(values.indexOf(current) + 1) % values.length]) }
-				},
-			},
+			} }
+
+	return this.field(title, value,
+		Object.assign(
+			options,
+			toggler_defaults,
 			options
 				// normalize value...
 				.run(function(){
@@ -1271,8 +1277,7 @@ function(spec, callback){
 					// 		the user to get it via closure...
 					spec,
 					// XXX is this the right spot for this???
-					mode)
-			})
+					mode) })
 	return this }