Keyboard simulator

keysimulator.js

var E = {
    createEvent: function(e, keyValue, keyCode) {
        e = e || 'keypress';

        keyValue = keyValue ? keyValue.charCodeAt(0) : keyCode;

        if (!(e || keyValue)) {
            throw Error('e and keyValue required');
        }

        var evt = document.createEvent('Events');
        evt.initEvent(e, true, true);

        evt.view = window;
        evt.altKey = false;
        evt.ctrlKey = false;
        evt.shiftKey = false;
        evt.metaKey = false;
        evt.keyCode = keyValue;
        evt.charCode = keyValue;

        document.dispatchEvent(evt);

        return this;
    },
    scan: function(str, evt, isNumber) {
        evt = evt || 'keydown';
        
        var strArr = !isNumber && str.split('');
        var self = this;

        if (!isNumber) {
            strArr.forEach(function(item) {
                self.createEvent(evt, item);
            });
        } else {
            self.createEvent(evt, false, parseInt(str, 10));
        }

        return this;
    },
    start: function(ticketNumber, ticketCode) {
        this.scan(ticketNumber + '!' + ticketCode, 'keypress');
        this.scan(13, 'keydown', true);
    }
};