/**
 * AJAX Nette Framwork plugin for jQuery
 *
 * @copyright   Copyright (c) 2009 Jan Marek
 * @license     MIT
 * @link        http://nettephp.com/cs/extras/jquery-ajax
 * @version     0.2
 */

jQuery.extend({
    nette: {
        updateSnippet: function (id, html) {
            $("#" + id).html(html);
        },

        success: function (payload) {
            // redirect
            if (payload.redirect) {
                window.location.href = payload.redirect;
                return;
            }

            // snippets
            if (payload.snippets) {
                for (var i in payload.snippets) {
                    jQuery.nette.updateSnippet(i, payload.snippets[i]);
                }
            }
            
            //events
            if (payload.events) {
                for (var e in payload.events) {
                    eval(payload.events[e]);
                }
            }
        }
    }
});

jQuery.ajaxSetup({
    success: jQuery.nette.success,
    dataType: "json"
});

$("a.ajax").live("click", function (event) {
    event.preventDefault(); 
    $.get(this.href);
});

$("a.confirmedAjax").live("click", function (event) {
    event.preventDefault(); 
    if (confirm(this.title)) {
        $.get(this.href);
    }
    
});  

jQuery.fn.swap = function(b) {
    b = jQuery(b)[0];
    var a = this[0],
        a2 = a.cloneNode(true),
        b2 = b.cloneNode(true),
        stack = this;

    a.parentNode.replaceChild(b2, a);
    b.parentNode.replaceChild(a2, b);

    stack[0] = a2;
    return this.pushStack( stack );
};

jQuery.fn.extend({
    ajaxSubmit: function (callback) {
        var form;
        var sendValues = {};

        // submit button
        if (this.is(":submit")) {
            form = this.parents("form");
            sendValues[this.attr("name")] = this.val() || "";

        // form
        } else if (this.is("form")) {
            form = this;

        // invalid element, do nothing
        } else {
            return null;
        }

        // validation
        if (form.get(0).onsubmit && !form.get(0).onsubmit()) return null;

        // get values
        var values = form.serializeArray();

        for (var i = 0; i < values.length; i++) {
            var name = values[i].name;

            // multi
            if (name in sendValues) {
                var val = sendValues[name];

                if (!(val instanceof Array)) {
                    val = [val];
                }

                val.push(values[i].value);
                sendValues[name] = val;
            } else {
                sendValues[name] = values[i].value;
            }
        }

        // send ajax request
        var ajaxOptions = {
            url: form.attr("action"),
            data: sendValues,
            type: form.attr("method") || "get"
        };

        if (callback) {
            ajaxOptions.success = callback;
        }

        return jQuery.ajax(ajaxOptions);
    }
});
// po načtení stránky
$(function () {
        // odeslání na formulářích
        $("form.ajax").submit(function () {
                $(this).ajaxSubmit();
                return false;
        });

        // odeslání pomocí tlačítek
        $("form.ajax :submit").click(function () {
                $(this).ajaxSubmit();
                return false;
        });
});