dat.gui/src/dat/controllers/factory.js

/**
 * dat-gui JavaScript Controller Library
 * http://code.google.com/p/dat-gui
 *
 * Copyright 2011 Data Arts Team, Google Creative Lab
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 */

var OptionController = require('./OptionController'),
    NumberControllerBox = require('./NumberControllerBox'),
    NumberControllerSlider = require('./NumberControllerSlider'),
    StringController = require('./StringController'),
    FunctionController = require('./FunctionController'),
    BooleanController = require('./BooleanController'),
    common = require('../utils/common');

module.exports = function (object, property) {

    var initialValue = object[property];

    // Providing options?
    if (common.isArray(arguments[2]) || common.isObject(arguments[2])) {
        return new OptionController(object, property, arguments[2]);
    }

    // Providing a map?

    if (common.isNumber(initialValue)) {

        if (common.isNumber(arguments[2]) && common.isNumber(arguments[3])) {

            // Has min and max.
            if (common.isNumber(arguments[4])) // has step
                return new NumberControllerSlider(object, property, arguments[2], arguments[3], arguments[4]);
            else
                return new NumberControllerSlider(object, property, arguments[2], arguments[3]);

        } else {

            return new NumberControllerBox(object, property, {min: arguments[2], max: arguments[3]});

        }

    }

    if (common.isString(initialValue)) {
        return new StringController(object, property);
    }

    if (common.isFunction(initialValue)) {
        return new FunctionController(object, property, '');
    }

    if (common.isBoolean(initialValue)) {
        return new BooleanController(object, property);
    }

};