/**
 * _4Ps Main Object
 *
 * @author rogeriolino
 */
var _4Ps = {

    /**
     * Node Object
     *
     */
    Node : {

        get : function(id) {
            return document.getElementById(id);
        },
        
        create : function(tag) {
            return document.createElement(tag);
        },

        remove : function(node) {
            if (node != null) {
                var parent = node.parentNode;
                parent.removeChild(node);
            }
        },

        bodyAppend : function(node) {
            var body = document.getElementsByTagName("body")[0];
            body.appendChild(node);
        },

        clone : function(node) {
            return node.cloneNode(true);
        },

        reply : function(node) {
            var clone = _4Ps.Node.clone(node);
            var parent = node.parentNode;
            parent.appendChild(clone);
        }
        
    },

    /**
     * Form Object
     *
     */
    Form : {
        
        submit : function(form_id, action) {
            var form = _4Ps.Node.get(form_id);
            if (form != undefined) {
                _4Ps.Editor.update();
                var onSubmit = function() { return true; }
                if (typeof(form.onsubmit) == "function") {
                    onSubmit = form.onsubmit;
                }
                if (_4Ps.Form.isValid(form) && onSubmit()) {
                    form.setAttribute("action", action);
                    form.method = "post";
                    setTimeout(
                		function() {
                            form.submit();
                		},
                		10
                    );
                    return true;
                }
            }
            return false;
        },

        isValid : function(form) {
            return _4Ps.Form.showAlert(form, "Os campos abaixo devem ser preenchidos corretamente:");
        },

        showAlert : function(form, title) {
            var message = "";
            with (form) {
                for (i = 0; i < elements.length; i++) {
                    if(elements[i].title != "" && elements[i].value == "") {
                        cp = elements[i].title;
                        message += " - " + cp + "<br/>";
                    }
                }
            }
            if (message.length > 0) {
                _4Ps.Dialog.alert(title + "<br/><br/>" + message);
                return false;
            }
            return true;
        }

    },

    /**
     * Cookie Object
     * 
     */
    Cookie : {

        set : function(name, value, hours) {
            var date = new Date();
            date.setTime(date.getTime() + 3600 * hours);
            var expires = "; expires=" + date.toGMTString();
            var cookie = name + "=" + value + expires + "; path=;";
            document.cookie = cookie;
        },

        get : function(name) {
            var cookies = document.cookie.split(';');
            for (var i = 0; i < cookies.length; i++) {
                if (cookie[i]) {
                    var cookie = cookies[i].trim();
                    if (cookie.substring(0, name.length + 1) == (name + '=')) {
                        return decodeURIComponent(cookie.substring(name.length + 1));
                    }
                }
            }
            return null;
        },

        remove : function(name) {
            _4Ps.Cookie.set(name, -1);
        }

    },

    /**
     * Dialog Object
     *
     */
    Dialog : {

        createWindow : function(id, title) {
            _4Ps.Node.remove(_4Ps.Node.get(id));
            var win = _4Ps.Node.create("div");
            win.setAttribute("id", id);
            win.setAttribute("title", title);
            _4Ps.Node.bodyAppend(win);
            return win;
        },

        confirm : function(text, action) {
            var id = "template-ui-dialog-confirm";
            var title = "Confirma";
            var win = _4Ps.Dialog.createWindow(id, title);
            var p = _4Ps.Node.create("p");
            p.innerHTML = text;
            win.appendChild(p);
            $(function() {
                $("#" + id).dialog({
                    bgiframe: true,
                    modal: true,
                    buttons: {
                        Ok: function() {
                            action();
                            $(this).dialog('close');
                        },
                        'Cancelar': function() { $(this).dialog('close'); }
                    }}
                );
            });
        },

        alert : function(text) {
            var id = "template-ui-dialog-alert";
            var title = "Alerta";
            var win = _4Ps.Dialog.createWindow(id, title);
            var p = _4Ps.Node.create("p");
            p.innerHTML = text;
            win.appendChild(p);
            $(function() {
                $("#" + id).dialog({
                    bgiframe: true,
                    modal: true,
                    buttons: {
                        Ok: function() {
                            $(this).dialog('close');
                        }
                    }}
                );
            });
        }
    },

    

    /**
     * UI Object
     *
     */
    UI : {

        Input : {

            inputs : new Array(),

            add : function(input, args) {
                _4Ps.UI.Input.inputs[_4Ps.UI.Input.inputs.length] = (input, args);
            },

            listen : function(input, args) {
                for (arg in args) {
                    var value = args[arg];
                    switch (arg) {
                    case 'maxlength':
                        if (input.value.length > value) {
                            input.value = input.value.substr(0, value);
                        }
                    case 'format':
                    }
                }
            },

            exec : function() {
                for (input in _4Ps.UI.Input.inputs) {
                    _4Ps.UI.Input.listen(input[0], input[1]);
                }
            }
        },

        Tabs : {

            change : function(tab) {
                var tabs = tab.parentNode.parentNode.parentNode;
                _4Ps.UI.Tabs.disableAll(tabs);
                var id = tab.href.split("#")[1];
                var div = _4Ps.Node.get(id);
                tab.setAttribute("class", "active");
                div.setAttribute("class", "ui-tab-active");
                _4Ps.Cookie.set("ui-tabs", parseInt(id.split('-')[2]) - 1, 8);
            },

            disableAll : function(tabs) {
                for (var i = 0; i < tabs.childNodes.length; i++) {
                    var node = tabs.childNodes[i];
                    if (node.nodeName.toLowerCase() == 'ul') {
                        for (var j = 0; j < node.childNodes.length; j++) {
                            var li = node.childNodes[j];
                            li.firstChild.setAttribute("class", "");
                        }
                    } else if (node.nodeName.toLowerCase() == 'div') {
                        node.setAttribute("class", "ui-tab");
                    }

                }
            }

        }

    },

    /**
     * Editor Object
     *
     */
    Editor : {

        editors : new Object(),

        create : function(id) {
            if (_4Ps.Editor.editors[id] == undefined) {
                FCKeditor.ToolbarSet = "Default4Ps";
                FCKeditor.BasePath = './web/.4psf/js/fckeditor/';
                var editor = new FCKeditor(id);
                editor.Height = '600';
                editor.ReplaceTextarea();
                _4Ps.Editor.editors[id] = editor;
            }
        },

        remove : function(id) {
            if (_4Ps.Editor.editors[id] != undefined) {
                var textArea = _4Ps.Node.get(id);
                var editor = _4Ps.Node.get(id.concat('___Frame'));
                if (textArea.style.display == 'none') {
                    textArea.style.display = 'inline';
                    editor.style.display = 'none';
                }
            }
        },

        update : function() {
            
        }

    },

    /**
     * Gallery Object
     *
     */
    Gallery : {

        rows : 1,

        addRow : function(rowId) {
            rowId = (rowId != null) ? rowId : "gallery_tr_pattern";
            _4Ps.Node.reply(_4Ps.Node.get(rowId));
            _4Ps.Gallery.rows++;
        },

        replyRows : function() {
            var total = 4;
            for (var i = 0; i < total; i++) {
                _4Ps.Gallery.addRow();
            }
        },

        removeRow : function(node) {
            if (_4Ps.Gallery.rows > 1) {
                var tr = node.parentNode.parentNode.parentNode;
                if (tr.parentNode.childNodes.length > 1) {
                    _4Ps.Node.remove(tr);
                }
                _4Ps.Gallery.rows--;
            }
        }

    },

    /**
     * Ajax Object
     *
     */
    Ajax : {

        xmlhttp : null,
        queue: Array(),

        getXmlHttp : function() {
            if (_4Ps.Ajax.xmlhttp == null) {
                try {
                    _4Ps.Ajax.xmlhttp = new XMLHttpRequest();
                } catch (e) {
                    try {
                        _4Ps.Ajax.xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
                    } catch (e) {
                        try {
                            _4Ps.Ajax.xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
                        } catch (e) {
                            _4Ps.Ajax.xmlhttp = null;
                        }
                    }
                }
            }
            return _4Ps.Ajax.xmlhttp;
        },

        Request : function(url, method, parameters, onStart, onComplete, onError) {
            this.constructor = 'Request';
            this.url = url;
            this.method = (method == 'POST') ? method : 'GET';
            this.parameters = parameters;
            this.onStart = (typeof(onStart) == 'function') ? onStart : function() {};
            this.onComplete = (typeof(onComplete) == 'function') ? onComplete : function() {};
            this.onError = (typeof(onError) == 'function') ? onError : function() {};
            this.getEncodedParameters = function() {
                var param = "";
                for (k in this.parameters) {
                    param += k + "=" + encodeURI(this.parameters[k]) + "&";
                }
                return param.substring(0, param.length-1);
            }
        },

        toggleLoader : function() {
            var id = "ajax-loader";
            var win = document.getElementById(id);
            if (win == null) {
                win = document.createElement("div");
                win.setAttribute('id', id);
                document.getElementsByTagName('body')[0].appendChild(win);
            } else {
                win.parentNode.removeChild(win);
            }
        },

        reRender : function(id, params) {
            var url = document.location;
            var method = 'GET';
            var parameters = params;
            var onStart = function() { _4Ps.Ajax.toggleLoader(); }
            var onComplete = function(c, xml) {
                var target = document.getElementById(id);
                if (target != null) {
                    /*
                     * Bela Gambia por causa do IE e suas
                     * variacoes que so dao trabalho
                     */
                    if (document.all) {
                        var pattern = '<body(.|\n)*</body>';
                        var re = new RegExp(pattern, "gi");
                        var m = re.exec(c);
                        if (m != null) {
                            var s = "";
                            for (i = 0; i < m.length; i++) {
                                s = s + m[i] + "\n";
                            }
                            var div = document.createElement("div");
                            div.innerHTML = s;
                            var elems = div.getElementsByTagName(target.nodeName);
                            for (var i = 0; i < elems.length; i++) {
                                var e = elems[i];
                                if (e.id == id) {
                                    while (target.childNodes[0]) {
                                        target.removeChild(target.childNodes[0]);
                                    }
                                    target.appendChild(e);
                                    break;
                                }
                            }
                        }
                    // Smart Browsers
                    } else {
                        var resp = xml.getElementById(id);
                        if (resp != null) {
                            target.innerHTML = resp.innerHTML;
                        }
                    }
                }
                _4Ps.Ajax.toggleLoader();
            }
            var onError = function() { _4Ps.Ajax.toggleLoader(); }
            _4Ps.Ajax.send(new _4Ps.Ajax.Request(url, method, parameters, onStart, onComplete, onError));

        },

        loadXMLFromString : function(xml) {
            if (typeof DOMParser != "undefined") {
                return (new DOMParser()).parseFromString(xml, "text/xml");
            }
            else if (typeof ActiveXObject != "undefined") {
                var doc = new ActiveXObject("MSXML2.DOMDocument");
                doc.loadXML(xml);
                return doc;
            }
            else {
                var url = "data:text/xml;charset=utf-8," + escape(xml);
                var request = new XMLHttpRequest();
                request.open("GET", url, false);
                request.send(null);
                return request.responseXML;
            }
        },

        loadXMLFromURL : function(url) {
            var xmlhttp = !window.XMLHttpRequest ? new ActiveXObject('Microsoft.XMLHTTP') : new XMLHttpRequest;
            xmlhttp.open('GET', url, false);
            xmlhttp.setRequestHeader('Content-Type', 'application/xml');
            xmlhttp.overrideMimeType("application/xml");
            xmlhttp.send('');
            return xmlhttp.responseXML;
        },

        send : function(request) {
            if (request instanceof Object && request.constructor == 'Request') {
                //_4Ps.Ajax.queue.push(request);
                _4Ps.Ajax.exec(request);
            }
        },

        exec : function(request) {
            if (_4Ps.Ajax.getXmlHttp() != undefined) {
                _4Ps.Ajax.getXmlHttp().onreadystatechange = function() {
                    if (_4Ps.Ajax.getXmlHttp().readyState == 4) {
                        if (_4Ps.Ajax.getXmlHttp().status == 200) {
                            if (typeof(request.onComplete) == 'function') {
                                request.onComplete(_4Ps.Ajax.getXmlHttp().responseText, _4Ps.Ajax.getXmlHttp().responseXML);
                            }
                        } else {
                            if (typeof(request.onError) == 'function') {
                                request.onError();
                            }
                        }
//                        if (self.queue.length > 0) {
//                            setTimeout(
//                                function() {
//                                    this(_4Ps.Ajax.queue.shift());
//                                },
//                                100
//                            );
//                        }
                    }
                }
                if (request.method == "GET") {
                    var url = "" + request.url;
                    url += (url.indexOf("?") == -1) ? "?" : "&";
                    url += request.getEncodedParameters();
                    _4Ps.Ajax.getXmlHttp().open(request.method, url, true);
                    if (_4Ps.Ajax.getXmlHttp().overrideMimeType) {
                        _4Ps.Ajax.getXmlHttp().overrideMimeType("application/xml");
                    }
                    _4Ps.Ajax.getXmlHttp().send(null);
                }
                else if (request.method == "POST") {
                    var p = request.getEncodedParameters();
                    _4Ps.Ajax.getXmlHttp().open(request.method, request.url, true);
                    _4Ps.Ajax.getXmlHttp().setRequestHeader("Content-type", "application/x-www-form-urlencoded");
                    _4Ps.Ajax.getXmlHttp().setRequestHeader("Content-length", p.length);
                    _4Ps.Ajax.getXmlHttp().setRequestHeader("Connection", "close");
                    _4Ps.Ajax.getXmlHttp().send(p);
                }
                request.onStart();
            }
        }
    }
    
}