/*
 * JsBehaviourToolkit 1.0.2
 *
 * Released on 30th November 2010.
 *
 * This file is part of JsBehaviour.
 * Copyright (c) 2010 DracoBlue, http://dracoblue.net/
 *
 * Licensed under the terms of MIT License. For the full copyright and license
 * information, please see the LICENSE file in the root folder.
 */

JsBehaviourToolkit = {

    prefix: "jsb_",

    handlers: {},

    registerHandler: function(key, handler_function)
    {
        this.handlers[key] = handler_function;
    },

    callHandler: function(key, dom_element)
    {
        if (typeof this.handlers[key] === "undefined")
        {
            throw new Error("The handler " + key + " is not defined!");
        }

        var input_element;

        if (dom_element.is("input"))
        {
            /*
             * The class is on the input dom element, let"s fetch
             * it"s parent
             */
            input_element = dom_element;
            dom_element = input_element.parent();
        }
        else
        {
            /*
             * The class is NOT on the input dom element, let"s 
             * find it"s first input!
             */
            input_element = dom_element.children("input").first();
        }

        if (input_element)
        {
            var value_string = input_element.val();
            if (value_string.substr(0, 1) == '{')
            {
                value = jQuery.parseJSON(value_string);
            }
            else
            {
                var value = {};
                var parts = value_string.split("&");
                var parts_length = parts.length;
                for (var i = 0; i < parts_length; i++)
                {
                    var query_string_entry = parts[i].split("=");
                    var value_key = decodeURIComponent(query_string_entry[0]);
                    var value_content = decodeURIComponent(query_string_entry.slice(1).join("="));
                    value[value_key] = value_content;
                }
            }            
            
            new this.handlers[key](dom_element, value);
        }
        else
        {
            new this.handlers[key](dom_element);
        }
    },

    applyBehaviour: function(dom_element)
    {
        var dom_elements = jQuery(dom_element).find("." + this.prefix);
        var dom_elements_length = dom_elements.length;

        for (var i = 0; i < dom_elements_length; i++)
        {
            var dom_element = jQuery(dom_elements[i]);
            var key = dom_element.attr("class").match(/jsb_([^\s]+)/)[1];
            this.callHandler(key, dom_element);
            dom_element.removeClass(this.prefix);
            dom_element.removeClass(this.prefix + "" + key);
        }
    }
};

jQuery(document).ready(function() {
    JsBehaviourToolkit.applyBehaviour(window.document);
});