var Selector = function (guid, title, colums, dataUrl, qparams, multipleChoice, handlers, getselectRows, IsAsyncPage, customQuery) {

    var win;
    var tree;
    var pitchOnDataGrid;
    var leftQuery;
    var rightTopQuey;
    var waitTable;
    getselectRows = getselectRows || function () { return undefined; }
    customQuery = customQuery || function () { }

    var hasEasyUI = function (elementTypeName) {
        if (window.top.$(elementTypeName).length > 0) {
            return true;
        } else {
            return false;
        }
    }
    //private 创建Html元素
    var createElement = function (elementTypeName, elements, parentElments) {

        if (typeof parentElments != "undefined" && typeof elements == "string") {
            parentElments.append(elements);
            return parentElments.find(elementTypeName);
        }
        else {
            if (typeof elements == "string")
                return $(elements);
        }

    };
    var createLinkButton = function (elements) {
        var links = elements.find("a");
        for (var i = 0; i < links.length; i++) {
            $(links[i]).linkbutton();
        }
    };
    var createTableString = function (name) {
        var table = "<table";
        return table.concat(" name='", name, "'>", "</table>");
    };
    var registEvent = function (target, eventType, handler) {
        target.unbind(eventType, handler);
        target.bind(eventType, handler);
    }

    //private 选择
    var selectWait = function (node) { 
        var selectItem = waitTable.datagrid("getChecked");
        var exitRows = pitchOnDataGrid.datagrid("getRows");
        if (!multipleChoice) {
            if (exitRows.length > 0 || selectItem.length > 1) {
                window.top.$.messager.alert("系统消息", "一次只能选择一个" + title);
                return;
            }
        }
        for (var i = 0; i < selectItem.length; i++) {
            if (!hasContainer(exitRows, selectItem[i]))
                pitchOnDataGrid.datagrid("appendRow", selectItem[i]);
        }
        if (!multipleChoice)
            closeWin();
    };
    function hasContainer(container, item) {
        var key = getKey();
        for (i = 0; i < container.length; i++) {
            if (container[i][key] == item[key])
                return true;
        }
        return false;
    }
    function getKey() {
        var key;
        $(colums.split(",")).each(function (i, column) {
            var keyValue = column.split(":");
            if (keyValue[0] == "Key") {
                key = keyValue[1];
                return;
            }
        });
        return key;
    }
    function getQueryColumns() {
        var queryColumns = new Array();
        $(colums.split(",")).each(function (i, column) {
            var keyValue = column.split(":");
            if (keyValue.length == 4 && keyValue[3] == "query") {
                queryColumns.push({
                    text: keyValue[0], feild: keyValue[1]
                });
            }
        });
        return queryColumns;
    }

    function pagerFilter(data) {

        if (typeof data.length == 'number' && typeof data.splice == 'function') {    // is array  
            data = {
                total: data.length,
                rows: data
            };
        }

        var dg = waitTable;
        var opts = dg.datagrid('options');

        var pager = dg.datagrid('getPager');
        //        pager.pagination({
        //            onSelectPage: function (pageNum, pageSize) {
        //                opts.pageNumber = pageNum;
        //                opts.pageSize = pageSize;
        //                pager.pagination('refresh', {
        //                    pageNumber: pageNum,
        //                    pageSize: pageSize
        //                });
        //                dg.datagrid('loadData', data);
        //            }
        //        });

        if (!data.originalRows) {
            data.originalRows = (data.rows);
        }
        var start = (opts.pageNumber - 1) * parseInt(opts.pageSize);
        var end = start + parseInt(opts.pageSize);
        data.rows = (data.originalRows.slice(start, end));
        return data;
    }
    var InitGridFile = function (dataGrid, pagination, url, title) {
        var columnsStr = getColumnsJson();

        return dataGrid.datagrid({
            url: pagination ? url : "",
            queryParams: pagination ? getParamsJson() : "",
            pagination: pagination,
            loadFilter: (pagination == false || IsAsyncPage == true) ? function (d) { if (d.rows == undefined) d.rows = d; return d; } : pagerFilter,
            pageSize: 50,
            pageList: [5, 25, 50],
            title: title,
            height: pagination == false ? 200 : 230,
            width: 750,
            loadMsg: "请稍等....",
            singleSelect: !multipleChoice,
            columns: [$.parseJSON(columnsStr)],
            onLoadSuccess: (pagination && multipleChoice) ? loadSelectRows : function (data) { return data; }
        });
    }
    function loadSelectRows(data) {
        //已选择的值和选择的列名
        var selectParams = getselectRows();
        if (selectParams == undefined)
            return;
        if (selectParams.selectRows != undefined && selectParams.selectRows != "") {
            var selectValues = selectParams.selectRows.split(";");
            var valueField = selectParams.valueField;
            var rows = data.originalRows;
            var selectRows = new Array();
            $(rows).each(function (i, j) {
                if ($.inArray(j[valueField].toString(), selectValues) >= 0)
                    selectRows.push(j);
            })
            pitchOnDataGrid.datagrid("loadData", selectRows);
        } else {
            pitchOnDataGrid.datagrid("loadData", []);
        }
        getselectRows = function () { return undefined; }
        return data;
    }
    var getColumnsJson = function () {
        var columnsStr = "["
        $(colums.split(",")).each(function (i, column) {
            var keyValue = column.split(":");
            columnsStr = columnsStr.concat('{"field":', "\"", keyValue[1], "\",", '"title":', "\"", keyValue[0], "\"");
            if (keyValue[0] == "Key") {
                columnsStr = columnsStr.concat(', "checkbox": "true"');
            }
            if (keyValue[2] != undefined) {
                columnsStr = columnsStr.concat(', "width":', "\"", keyValue[2], "\"");
            }
            if (keyValue[3] == "hidden") {
                columnsStr = columnsStr.concat(', "hidden":', "true");
            }
            columnsStr = columnsStr.concat(', "align":', "\"center\"");
            columnsStr = columnsStr.concat("},");
        });
        columnsStr = columnsStr.substring(0, columnsStr.length - 1);
        columnsStr = columnsStr.concat("]");
        return columnsStr;
    }
    var getParamsJson = function () {
        var columnsStr = "{";
        $(qparams.split(",")).each(function (i, item) {
            var keyValue = item.split(":");
            columnsStr = columnsStr.concat("\"", keyValue[0], "\":");
            columnsStr = columnsStr.concat("\"", keyValue[1], "\",");
        });
        columnsStr = columnsStr.substring(0, columnsStr.length - 1);
        columnsStr = columnsStr.concat("}");
        return $.parseJSON(columnsStr);
    }
    var deleteSelectUser = function () {
        var deleteSource = pitchOnDataGrid.datagrid("getChecked");
        if (deleteSource.length > 0) {
            for (var i = 0; i < deleteSource.length; i++) {
                var rowIndex = pitchOnDataGrid.datagrid("getRowIndex", deleteSource[i]);
                pitchOnDataGrid.datagrid("deleteRow", rowIndex);
            }
        } else {
            window.top.$.messager.alert("系统消息", "未选中任何行!");
        }
    };
    var close = function () {
        var btnSelectOk = $((rightTopQuey.find("a"))[2]);
        btnSelectOk.unbind();
        btnSelectOk.bind("click", function () {
            var selectUser = pitchOnDataGrid.datagrid("getData");
            var rcount = pitchOnDataGrid.datagrid("getRows").length;
            if (rcount > 0) {
                if (handlers instanceof Array) {
                    for (var i = 0; i < handlers.length; i++) {
                        handlers[i](selectUser);
                    }
                } else if (typeof handlers != "undefined") {
                    handlers(selectUser);
                }
            }
            if (!multipleChoice && rcount > 0) {
                pitchOnDataGrid.datagrid("deleteRow", 0);
            }
            win.window("close");
        });
    };
    var queryInfo = function () {
        var queryStr = new Array();

        var columns = getQueryColumns();
        columns.push({ feild: "keyword" });
        $.each(columns, function (i, column) {
            var value = leftQuery.find("input[name='" + column.feild + "']").val();
            queryStr.push("\"" + column.feild + "\":\"" + value + "\"");
        });
        var params = $.parseJSON("{" + queryStr.join(",") + "}");
        waitTable.datagrid('load', params);
    }
    var createQueryString = function () {
        var columns = getQueryColumns();
        leftQuery = '<div class="left_query">';

        $.each(columns, function (i, column) {
            leftQuery = leftQuery.concat(column.text + "：");
            leftQuery = leftQuery.concat("<input type='text' name='" + column.feild + "'/>&nbsp;&nbsp;");
        });

        leftQuery = leftQuery.concat('<a  href="javascript:void(0);" name="btnSelectOk" >查询</a>&nbsp;&nbsp;');
        leftQuery = leftQuery.concat("</div>");
        return leftQuery;
    }
    function closeWin() {
        $((rightTopQuey.find("a"))[2]).click();
    }
    this.show = function () {
        if (!hasEasyUI("div[name='" + guid + "winWarp2']")) {
            var warpElement = "<div class='select_warp clear' name='" + guid + "winWarp2'></div>";
            var warp = window.top.$(warpElement).appendTo(window.top.document.body);

            var wheight = 335;
            if (multipleChoice)
                wheight = 540;

            win = warp.window({
                width: 775,
                height: wheight,
                modal: true,
                maximizable: false,
                collapsible: false,
                shadow: false,
                title: title + '信息选择',
                onBeforeOpen: function () {
                    $('select:not(.easyui-combobox)').hide(); //IE6中解决select遮住问题
                    if (waitTable != undefined && multipleChoice) {
                        loadSelectRows(waitTable.datagrid("getData"));
                    }
                },
                onBeforeClose: function () {
                    $('select:not(.easyui-combobox)').show();
                }
            });
            leftQuery = createElement("div[class='left_query']", createQueryString(), warp);
            customQuery(leftQuery, $(leftQuery.find("a")[0]));
            var elementTop = createElement(".select_top",
                  "<div class='select_top postion_border panel-margin custompanel'></div>", warp);

            var elementBottom = createElement(".selectOrg_bottom",
                "<div class='selectOrg_bottom postion_border forMultiple custompanel'></div>", warp);


            var top_panel_warp = createElement("div[panel_postion='org_top']", "<div class='panel_Data' panel_postion='org_top'></div>", elementTop);

            //            top_panel_warp.panel({
            //                width: 750,
            //                height: 235,
            //                title: title + '信息',
            //                closable: false,
            //                collapsible: true,
            //                minimizable: false,
            //                maximizable: false
            //            });

            waitTable = createElement("table[name='waitSelectDataGrid']", createTableString("waitSelectDataGrid"), top_panel_warp);
            waitTable = (InitGridFile(waitTable, true, dataUrl, title + '信息'));


            createLinkButton(leftQuery);
            var rightQuery = '<p class="select_button" pPostion="select_button"><a  href="javascript:void(0);" name="btnSelect" >选择</a>&nbsp;&nbsp;<a href="javascript:void(0);" class="forMultiple" name="btnDel">删除</a>';
            rightQuery = rightQuery.concat("&nbsp;&nbsp;<a  href='javascript:void(0);' name='btnSelectOk' class='forMultiple'>确定</a></p>");
            rightTopQuey = createElement("p[pPostion='select_button']", rightQuery, elementTop);
            createLinkButton(rightTopQuey);

            var left_panel_warp = createElement("div[panel_postion='bottom_select']", "<div class='panel_Data select_Data' panel_postion='bottom_select'></div>", elementBottom);

            //            var pitchOnPanel = left_panel_warp.panel({
            //                width: 750,
            //                height: 220,
            //                title: '已选' + title,
            //                closable: false,
            //                collapsible: true,
            //                minimizable: false,
            //                maximizable: false
            //            });
            var pitchOnTable = createElement("table[name='pitchOnSelectDataGrid']", createTableString("pitchOnSelectDataGrid"), left_panel_warp);
            pitchOnDataGrid = (InitGridFile(pitchOnTable, false, "", '已选' + title));

            if (!multipleChoice)
                warp.find('.forMultiple').hide();
            //查询
            registEvent($((leftQuery.find("a")[0])), "click", queryInfo);
            //选择 
            registEvent($(rightTopQuey.find("a")[0]), "click", selectWait);
            //删除 
            registEvent($(rightTopQuey.find("a")[1]), "click", deleteSelectUser);
            //确认
            close(handlers);
        } else {
            window.top.$("div[name='" + guid + "winWarp2']").window('open');
        }
    }
}