change.js

var extend = require('xtend')
var getFormData = require('form-data-set/element')

var BaseEvent = require('./base-event.js')

var VALID_CHANGE = ['checkbox', 'file', 'select-multiple', 'select-one'];
var VALID_INPUT = ['color', 'date', 'datetime', 'datetime-local', 'email',
    'month', 'number', 'password', 'range', 'search', 'tel', 'text', 'time',
    'url', 'week', 'textarea'];

module.exports = BaseEvent(changeLambda);

function changeLambda(ev, broadcast) {
    var target = ev.target

    var isValid =
        (ev.type === 'input' && VALID_INPUT.indexOf(target.type) !== -1) ||
        (ev.type === 'change' && VALID_CHANGE.indexOf(target.type) !== -1);

    if (!isValid) {
        if (ev.startPropagation) {
            ev.startPropagation()
        }
        return
    }

    var value = getFormData(ev.currentTarget)
    var data = extend(value, this.data)

    broadcast(data)
}