form-values.js

YUI.add("form-values", function(Y){
	
	var _form,
	    _values
	    ;
	
	Form = function(selector) {
		if(selector != null) {
			var node = Y.one(selector);
			if(node && node.get('nodeName').toLowerCase() === 'form') {
				_form = node;
				return _form;
			}
		}
		_form = null;
		return _form;
	};
	
	Form.setForm = function(selector) {
		return Form(selector);
	};
	
	Form.getForm = function(){
		return _form;
	};
	
	Form.getFormValues = function(){
		return Form._setFormValues();
	};
	
	Form._setFormValues = function(){
		_values = {};
		
		if(Form.getForm() !== null) {
			_form.get('elements').each(function(field){
				var type = field.get('nodeName') + ':' + (field.get('type') || ''),
				    name = field.get('name'),
				    value;
				
				switch (type.toLowerCase()) {
					case 'input:text'   : // fall through intentional
					case 'input:hidden' :
					case 'textarea:'    :
					case 'select:'      :
						value = field.get('value');
						break;
					case 'input:radio'    : // fall through intentional
					case 'input:checkbox' :
						value = field.get('checked') ? field.get('value') : undefined;
						break;
				}
				
				if(value !== undefined) {
					if (name in _values) {
						if(!Y.Lang.isArray(_values[name])) {
							_values[name] = [_values[name]];
						}
						_values[name].push(value);
					}else{
						_values[name] = value;
					}
				}
			});
		}
		
		return _values;
	};
	    
}, '0.1', {requires : ['node']});

if(Y.Form !== undefined || Y.Form !== null) {
	Y.mix(Y.Form, Form);
}else{
	Y.Form = Form;
}