Key Sequences

keys.js

/*jslint plusplus: true, continue: true */
/*global define: false, alert: false */
function trimString(str) {
    'use strict';
    str = str.replace(/^\s\s*/, '');
    var ws = /\s/,
        i = str.length;
    while (ws.test(str.charAt(--i)));
    return str.slice(0, i + 1);
}

define(['ender'], function ($) {
    'use strict';
    var myKey = function (keys, scope, method) {
        if (typeof method !== 'function') {
            method = scope;
            scope = 'all';
        }

        keys.split(',').forEach(function (k) {
            var series = trimString(k).split(/\s+/), nscope, i, l;

            nscope = $.reduce($.initial(series), function (s, key) {
                var newScope = [s, key].join('+');
                $.key(key, s, function () {
                    console.log('Changing Scope To: ' + newScope);
                    $.key.setScope(newScope);
                    setTimeout(function () {
                        console.log('Changing Scope Back To: ' + s);
                        $.key.setScope(s);
                    }, 500);
                });
                return newScope;
            }, scope);

            $.key($.last(series), nscope, method);
        });
    };

    return {
        init: function () {
            myKey('g o', function () {
                console.log('You said go!');
            });
        }
    };
});