Roo/bootstrap/Table.js

/*
 * - LGPL
 *
 * table
 * 
 */

/**
 * @class Roo.bootstrap.Table
 * @extends Roo.bootstrap.Component
 * Bootstrap Table class
 * @cfg {String} cls table class
 * @cfg {String} align (left|center|right) Specifies the alignment of a table according to surrounding text
 * @cfg {String} bgcolor Specifies the background color for a table
 * @cfg {Number} border Specifies whether the table cells should have borders or not
 * @cfg {Number} cellpadding Specifies the space between the cell wall and the cell content
 * @cfg {Number} cellspacing Specifies the space between cells
 * @cfg {String} frame Specifies which parts of the outside borders that should be visible
 * @cfg {String} rules Specifies which parts of the inside borders that should be visible
 * @cfg {String} sortable Specifies that the table should be sortable
 * @cfg {String} summary Specifies a summary of the content of a table
 * @cfg {Number} width Specifies the width of a table
 * @cfg {String} layout table layout (auto | fixed | initial | inherit)
 * 
 * @cfg {boolean} striped Should the rows be alternative striped
 * @cfg {boolean} bordered Add borders to the table
 * @cfg {boolean} hover Add hover highlighting
 * @cfg {boolean} condensed Format condensed
 * @cfg {boolean} responsive Format condensed
 * @cfg {Boolean} loadMask (true|false) default false
 * @cfg {Boolean} footerShow (true|false) generate tfoot, default true
 * @cfg {Boolean} headerShow (true|false) generate thead, default true
 * @cfg {Boolean} rowSelection (true|false) default false
 * @cfg {Boolean} cellSelection (true|false) default false
 * @cfg {Boolean} scrollBody (true|false) default false - body scrolled / fixed header
 * @cfg {Roo.bootstrap.PagingToolbar} footer  a paging toolbar
 * @cfg {Boolean} lazyLoad  auto load data while scrolling to the end (default false)
 * @cfg {Boolean} auto_hide_footer  auto hide footer if only one page (default false)
 
 * 
 * @constructor
 * Create a new Table
 * @param {Object} config The config object
 */

Roo.bootstrap.Table = function(config){
    Roo.bootstrap.Table.superclass.constructor.call(this, config);



    // BC...
    this.rowSelection = (typeof(config.rowSelection) != 'undefined') ? config.rowSelection : this.rowSelection;
    this.cellSelection = (typeof(config.cellSelection) != 'undefined') ? config.cellSelection : this.cellSelection;
    this.headerShow = (typeof(config.thead) != 'undefined') ? config.thead : this.headerShow;
    this.footerShow = (typeof(config.tfoot) != 'undefined') ? config.tfoot : this.footerShow;

    this.sm = this.sm || {xtype: 'RowSelectionModel'};
    if (this.sm) {
        this.sm.grid = this;
        this.selModel = Roo.factory(this.sm, Roo.bootstrap.Table);
        this.sm = this.selModel;
        this.sm.xmodule = this.xmodule || false;
    }

    if (this.cm && typeof(this.cm.config) == 'undefined') {
        this.colModel = new Roo.grid.ColumnModel(this.cm);
        this.cm = this.colModel;
        this.cm.xmodule = this.xmodule || false;
    }
    if (this.store) {
        this.store= Roo.factory(this.store, Roo.data);
        this.ds = this.store;
        this.ds.xmodule = this.xmodule || false;

    }
    if (this.footer && this.store) {
        this.footer.dataSource = this.ds;
        this.footer = Roo.factory(this.footer);
    }

    /** @private */
    this.addEvents({
        /**
         * @event cellclick
         * Fires when a cell is clicked
         * @param {Roo.bootstrap.Table} this
         * @param {Roo.Element} el
         * @param {Number} rowIndex
         * @param {Number} columnIndex
         * @param {Roo.EventObject} e
         */
        "cellclick" : true,
        /**
         * @event celldblclick
         * Fires when a cell is double clicked
         * @param {Roo.bootstrap.Table} this
         * @param {Roo.Element} el
         * @param {Number} rowIndex
         * @param {Number} columnIndex
         * @param {Roo.EventObject} e
         */
        "celldblclick" : true,
        /**
         * @event rowclick
         * Fires when a row is clicked
         * @param {Roo.bootstrap.Table} this
         * @param {Roo.Element} el
         * @param {Number} rowIndex
         * @param {Roo.EventObject} e
         */
        "rowclick" : true,
        /**
         * @event rowdblclick
         * Fires when a row is double clicked
         * @param {Roo.bootstrap.Table} this
         * @param {Roo.Element} el
         * @param {Number} rowIndex
         * @param {Roo.EventObject} e
         */
        "rowdblclick" : true,
        /**
         * @event mouseover
         * Fires when a mouseover occur
         * @param {Roo.bootstrap.Table} this
         * @param {Roo.Element} el
         * @param {Number} rowIndex
         * @param {Number} columnIndex
         * @param {Roo.EventObject} e
         */
        "mouseover" : true,
        /**
         * @event mouseout
         * Fires when a mouseout occur
         * @param {Roo.bootstrap.Table} this
         * @param {Roo.Element} el
         * @param {Number} rowIndex
         * @param {Number} columnIndex
         * @param {Roo.EventObject} e
         */
        "mouseout" : true,
        /**
         * @event rowclass
         * Fires when a row is rendered, so you can change add a style to it.
         * @param {Roo.bootstrap.Table} this
         * @param {Object} rowcfg   contains record  rowIndex colIndex and rowClass - set rowClass to add a style.
         */
        'rowclass' : true,
          /**
         * @event rowsrendered
         * Fires when all the  rows have been rendered
         * @param {Roo.bootstrap.Table} this
         */
        'rowsrendered' : true,
        /**
         * @event contextmenu
         * The raw contextmenu event for the entire grid.
         * @param {Roo.EventObject} e
         */
        "contextmenu" : true,
        /**
         * @event rowcontextmenu
         * Fires when a row is right clicked
         * @param {Roo.bootstrap.Table} this
         * @param {Number} rowIndex
         * @param {Roo.EventObject} e
         */
        "rowcontextmenu" : true,
        /**
         * @event cellcontextmenu
         * Fires when a cell is right clicked
         * @param {Roo.bootstrap.Table} this
         * @param {Number} rowIndex
         * @param {Number} cellIndex
         * @param {Roo.EventObject} e
         */
         "cellcontextmenu" : true,
         /**
         * @event headercontextmenu
         * Fires when a header is right clicked
         * @param {Roo.bootstrap.Table} this
         * @param {Number} columnIndex
         * @param {Roo.EventObject} e
         */
        "headercontextmenu" : true
    });
};

Roo.extend(Roo.bootstrap.Table, Roo.bootstrap.Component,  {

    cls: false,
    align: false,
    bgcolor: false,
    border: false,
    cellpadding: false,
    cellspacing: false,
    frame: false,
    rules: false,
    sortable: false,
    summary: false,
    width: false,
    striped : false,
    scrollBody : false,
    bordered: false,
    hover:  false,
    condensed : false,
    responsive : false,
    sm : false,
    cm : false,
    store : false,
    loadMask : false,
    footerShow : true,
    headerShow : true,

    rowSelection : false,
    cellSelection : false,
    layout : false,

    // Roo.Element - the tbody
    mainBody: false,
    // Roo.Element - thead element
    mainHead: false,

    container: false, // used by gridpanel...

    lazyLoad : false,

    CSS : Roo.util.CSS,

    auto_hide_footer : false,

    getAutoCreate : function()
    {
        var cfg = Roo.apply({}, Roo.bootstrap.Table.superclass.getAutoCreate.call(this));

        cfg = {
            tag: 'table',
            cls : 'table',
            cn : []
        };
        if (this.scrollBody) {
            cfg.cls += ' table-body-fixed';
        }
        if (this.striped) {
            cfg.cls += ' table-striped';
        }

        if (this.hover) {
            cfg.cls += ' table-hover';
        }
        if (this.bordered) {
            cfg.cls += ' table-bordered';
        }
        if (this.condensed) {
            cfg.cls += ' table-condensed';
        }
        if (this.responsive) {
            cfg.cls += ' table-responsive';
        }

        if (this.cls) {
            cfg.cls+=  ' ' +this.cls;
        }

        // this lot should be simplifed...
        var _t = this;
        var cp = [
            'align',
            'bgcolor',
            'border',
            'cellpadding',
            'cellspacing',
            'frame',
            'rules',
            'sortable',
            'summary',
            'width'
        ].forEach(function(k) {
            if (_t[k]) {
                cfg[k] = _t[k];
            }
        });


        if (this.layout) {
            cfg.style = (typeof(cfg.style) == 'undefined') ? ('table-layout:' + this.layout + ';') : (cfg.style + ('table-layout:' + this.layout + ';'));
        }

        if(this.store || this.cm){
            if(this.headerShow){
                cfg.cn.push(this.renderHeader());
            }

            cfg.cn.push(this.renderBody());

            if(this.footerShow){
                cfg.cn.push(this.renderFooter());
            }
            // where does this come from?
            //cfg.cls+=  ' TableGrid';
        }

        return { cn : [ cfg ] };
    },

    initEvents : function()
    {
        if(!this.store || !this.cm){
            return;
        }
        if (this.selModel) {
            this.selModel.initEvents();
        }


        //Roo.log('initEvents with ds!!!!');

        this.mainBody = this.el.select('tbody', true).first();
        this.mainHead = this.el.select('thead', true).first();
        this.mainFoot = this.el.select('tfoot', true).first();



        var _this = this;

        Roo.each(this.el.select('thead th.sortable', true).elements, function(e){
            e.on('click', _this.sort, _this);
        });

        this.mainBody.on("click", this.onClick, this);
        this.mainBody.on("dblclick", this.onDblClick, this);

        // why is this done????? = it breaks dialogs??
        //this.parent().el.setStyle('position', 'relative');


        if (this.footer) {
            this.footer.parentId = this.id;
            this.footer.onRender(this.el.select('tfoot tr td').first(), null);

            if(this.lazyLoad){
                this.el.select('tfoot tr td').first().addClass('hide');
            }
        }

        if(this.loadMask) {
            this.maskEl = new Roo.LoadMask(this.el, { store : this.ds, msgCls: 'roo-el-mask-msg' });
        }

        this.store.on('load', this.onLoad, this);
        this.store.on('beforeload', this.onBeforeLoad, this);
        this.store.on('update', this.onUpdate, this);
        this.store.on('add', this.onAdd, this);
        this.store.on("clear", this.clear, this);

        this.el.on("contextmenu", this.onContextMenu, this);

        this.mainBody.on('scroll', this.onBodyScroll, this);

        this.cm.on("headerchange", this.onHeaderChange, this);

        this.cm.on("hiddenchange", this.onHiddenChange, this, arguments);

    },

    onContextMenu : function(e, t)
    {
        this.processEvent("contextmenu", e);
    },

    processEvent : function(name, e)
    {
        if (name != 'touchstart' ) {
            this.fireEvent(name, e);
        }

        var t = e.getTarget();

        var cell = Roo.get(t);

        if(!cell){
            return;
        }

        if(cell.findParent('tfoot', false, true)){
            return;
        }

        if(cell.findParent('thead', false, true)){

            if(e.getTarget().nodeName.toLowerCase() != 'th'){
                cell = Roo.get(t).findParent('th', false, true);
                if (!cell) {
                    Roo.log("failed to find th in thead?");
                    Roo.log(e.getTarget());
                    return;
                }
            }

            var cellIndex = cell.dom.cellIndex;

            var ename = name == 'touchstart' ? 'click' : name;
            this.fireEvent("header" + ename, this, cellIndex, e);

            return;
        }

        if(e.getTarget().nodeName.toLowerCase() != 'td'){
            cell = Roo.get(t).findParent('td', false, true);
            if (!cell) {
                Roo.log("failed to find th in tbody?");
                Roo.log(e.getTarget());
                return;
            }
        }

        var row = cell.findParent('tr', false, true);
        var cellIndex = cell.dom.cellIndex;
        var rowIndex = row.dom.rowIndex - 1;

        if(row !== false){

            this.fireEvent("row" + name, this, rowIndex, e);

            if(cell !== false){

                this.fireEvent("cell" + name, this, rowIndex, cellIndex, e);
            }
        }

    },

    onMouseover : function(e, el)
    {
        var cell = Roo.get(el);

        if(!cell){
            return;
        }

        if(e.getTarget().nodeName.toLowerCase() != 'td'){
            cell = cell.findParent('td', false, true);
        }

        var row = cell.findParent('tr', false, true);
        var cellIndex = cell.dom.cellIndex;
        var rowIndex = row.dom.rowIndex - 1; // start from 0

        this.fireEvent('mouseover', this, cell, rowIndex, cellIndex, e);

    },

    onMouseout : function(e, el)
    {
        var cell = Roo.get(el);

        if(!cell){
            return;
        }

        if(e.getTarget().nodeName.toLowerCase() != 'td'){
            cell = cell.findParent('td', false, true);
        }

        var row = cell.findParent('tr', false, true);
        var cellIndex = cell.dom.cellIndex;
        var rowIndex = row.dom.rowIndex - 1; // start from 0

        this.fireEvent('mouseout', this, cell, rowIndex, cellIndex, e);

    },

    onClick : function(e, el)
    {
        var cell = Roo.get(el);

        if(!cell || (!this.cellSelection && !this.rowSelection)){
            return;
        }

        if(e.getTarget().nodeName.toLowerCase() != 'td'){
            cell = cell.findParent('td', false, true);
        }

        if(!cell || typeof(cell) == 'undefined'){
            return;
        }

        var row = cell.findParent('tr', false, true);

        if(!row || typeof(row) == 'undefined'){
            return;
        }

        var cellIndex = cell.dom.cellIndex;
        var rowIndex = this.getRowIndex(row);

        // why??? - should these not be based on SelectionModel?
        if(this.cellSelection){
            this.fireEvent('cellclick', this, cell, rowIndex, cellIndex, e);
        }

        if(this.rowSelection){
            this.fireEvent('rowclick', this, row, rowIndex, e);
        }


    },

    onDblClick : function(e,el)
    {
        var cell = Roo.get(el);

        if(!cell || (!this.cellSelection && !this.rowSelection)){
            return;
        }

        if(e.getTarget().nodeName.toLowerCase() != 'td'){
            cell = cell.findParent('td', false, true);
        }

        if(!cell || typeof(cell) == 'undefined'){
            return;
        }

        var row = cell.findParent('tr', false, true);

        if(!row || typeof(row) == 'undefined'){
            return;
        }

        var cellIndex = cell.dom.cellIndex;
        var rowIndex = this.getRowIndex(row);

        if(this.cellSelection){
            this.fireEvent('celldblclick', this, cell, rowIndex, cellIndex, e);
        }

        if(this.rowSelection){
            this.fireEvent('rowdblclick', this, row, rowIndex, e);
        }
    },

    sort : function(e,el)
    {
        var col = Roo.get(el);

        if(!col.hasClass('sortable')){
            return;
        }

        var sort = col.attr('sort');
        var dir = 'ASC';

        if(col.select('i', true).first().hasClass('glyphicon-arrow-up')){
            dir = 'DESC';
        }

        this.store.sortInfo = {field : sort, direction : dir};

        if (this.footer) {
            Roo.log("calling footer first");
            this.footer.onClick('first');
        } else {

            this.store.load({ params : { start : 0 } });
        }
    },

    renderHeader : function()
    {
        var header = {
            tag: 'thead',
            cn : []
        };

        var cm = this.cm;
        this.totalWidth = 0;

        for(var i = 0, len = cm.getColumnCount(); i < len; i++){

            var config = cm.config[i];

            var c = {
                tag: 'th',
                cls : 'x-hcol-' + i,
                style : '',
                html: cm.getColumnHeader(i)
            };

            var hh = '';

            if(typeof(config.sortable) != 'undefined' && config.sortable){
                c.cls = 'sortable';
                c.html = '<i class="glyphicon"></i>' + c.html;
            }

            // could use BS4 hidden-..-down 

            if(typeof(config.lgHeader) != 'undefined'){
                hh += '<span class="hidden-xs hidden-sm hidden-md ">' + config.lgHeader + '</span>';
            }

            if(typeof(config.mdHeader) != 'undefined'){
                hh += '<span class="hidden-xs hidden-sm hidden-lg">' + config.mdHeader + '</span>';
            }

            if(typeof(config.smHeader) != 'undefined'){
                hh += '<span class="hidden-xs hidden-md hidden-lg">' + config.smHeader + '</span>';
            }

            if(typeof(config.xsHeader) != 'undefined'){
                hh += '<span class="hidden-sm hidden-md hidden-lg">' + config.xsHeader + '</span>';
            }

            if(hh.length){
                c.html = hh;
            }

            if(typeof(config.tooltip) != 'undefined'){
                c.tooltip = config.tooltip;
            }

            if(typeof(config.colspan) != 'undefined'){
                c.colspan = config.colspan;
            }

            if(typeof(config.hidden) != 'undefined' && config.hidden){
                c.style += ' display:none;';
            }

            if(typeof(config.dataIndex) != 'undefined'){
                c.sort = config.dataIndex;
            }



            if(typeof(config.align) != 'undefined' && config.align.length){
                c.style += ' text-align:' + config.align + ';';
            }

            if(typeof(config.width) != 'undefined'){
                c.style += ' width:' + config.width + 'px;';
                this.totalWidth += config.width;
            } else {
                this.totalWidth += 100; // assume minimum of 100 per column?
            }

            if(typeof(config.cls) != 'undefined'){
                c.cls = (typeof(c.cls) == 'undefined') ? config.cls : (c.cls + ' ' + config.cls);
            }

            ['xs','sm','md','lg'].map(function(size){

                if(typeof(config[size]) == 'undefined'){
                    return;
                }

                if (!config[size]) { // 0 = hidden
                    // BS 4 '0' is treated as hide that column and below.
                    c.cls += ' hidden-' + size + ' hidden' + size + '-down';
                    return;
                }

                c.cls += ' col-' + size + '-' + config[size] + (
                    size == 'xs' ? (' col-' + config[size] ) : '' // bs4 col-{num} replaces col-xs
                );


            });

            header.cn.push(c)
        }

        return header;
    },

    renderBody : function()
    {
        var body = {
            tag: 'tbody',
            cn : [
                {
                    tag: 'tr',
                    cn : [
                        {
                            tag : 'td',
                            colspan :  this.cm.getColumnCount()
                        }
                    ]
                }
            ]
        };

        return body;
    },

    renderFooter : function()
    {
        var footer = {
            tag: 'tfoot',
            cn : [
                {
                    tag: 'tr',
                    cn : [
                        {
                            tag : 'td',
                            colspan :  this.cm.getColumnCount()
                        }
                    ]
                }
            ]
        };

        return footer;
    },



    onLoad : function()
    {
//        Roo.log('ds onload');
        this.clear();

        var _this = this;
        var cm = this.cm;
        var ds = this.store;

        Roo.each(this.el.select('thead th.sortable', true).elements, function(e){
            e.select('i', true).removeClass(['glyphicon-arrow-up', 'glyphicon-arrow-down']);
            if (_this.store.sortInfo) {

                if(e.hasClass('sortable') && e.attr('sort') == _this.store.sortInfo.field && _this.store.sortInfo.direction.toUpperCase() == 'ASC'){
                    e.select('i', true).addClass(['glyphicon-arrow-up']);
                }

                if(e.hasClass('sortable') && e.attr('sort') == _this.store.sortInfo.field && _this.store.sortInfo.direction.toUpperCase() == 'DESC'){
                    e.select('i', true).addClass(['glyphicon-arrow-down']);
                }
            }
        });

        var tbody =  this.mainBody;

        if(ds.getCount() > 0){
            ds.data.each(function(d,rowIndex){
                var row =  this.renderRow(cm, ds, rowIndex);

                tbody.createChild(row);

                var _this = this;

                if(row.cellObjects.length){
                    Roo.each(row.cellObjects, function(r){
                        _this.renderCellObject(r);
                    })
                }

            }, this);
        }

        var tfoot = this.el.select('tfoot', true).first();

        if(this.footerShow && this.auto_hide_footer && this.mainFoot){

            this.mainFoot.setVisibilityMode(Roo.Element.DISPLAY).hide();

            var total = this.ds.getTotalCount();

            if(this.footer.pageSize < total){
                this.mainFoot.show();
            }
        }

        Roo.each(this.el.select('tbody td', true).elements, function(e){
            e.on('mouseover', _this.onMouseover, _this);
        });

        Roo.each(this.el.select('tbody td', true).elements, function(e){
            e.on('mouseout', _this.onMouseout, _this);
        });
        this.fireEvent('rowsrendered', this);

        this.autoSize();
    },


    onUpdate : function(ds,record)
    {
        this.refreshRow(record);
        this.autoSize();
    },

    onRemove : function(ds, record, index, isUpdate){
        if(isUpdate !== true){
            this.fireEvent("beforerowremoved", this, index, record);
        }
        var bt = this.mainBody.dom;

        var rows = this.el.select('tbody > tr', true).elements;

        if(typeof(rows[index]) != 'undefined'){
            bt.removeChild(rows[index].dom);
        }

//        if(bt.rows[index]){
//            bt.removeChild(bt.rows[index]);
//        }

        if(isUpdate !== true){
            //this.stripeRows(index);
            //this.syncRowHeights(index, index);
            //this.layout();
            this.fireEvent("rowremoved", this, index, record);
        }
    },

    onAdd : function(ds, records, rowIndex)
    {
        //Roo.log('on Add called');
        // - note this does not handle multiple adding very well..
        var bt = this.mainBody.dom;
        for (var i =0 ; i < records.length;i++) {
            //Roo.log('call insert row Add called on ' + rowIndex + ':' + i);
            //Roo.log(records[i]);
            //Roo.log(this.store.getAt(rowIndex+i));
            this.insertRow(this.store, rowIndex + i, false);
            return;
        }

    },


    refreshRow : function(record){
        var ds = this.store, index;
        if(typeof record == 'number'){
            index = record;
            record = ds.getAt(index);
        }else{
            index = ds.indexOf(record);
        }
        this.insertRow(ds, index, true);
        this.autoSize();
        this.onRemove(ds, record, index+1, true);
        this.autoSize();
        //this.syncRowHeights(index, index);
        //this.layout();
        this.fireEvent("rowupdated", this, index, record);
    },

    insertRow : function(dm, rowIndex, isUpdate){

        if(!isUpdate){
            this.fireEvent("beforerowsinserted", this, rowIndex);
        }
            //var s = this.getScrollState();
        var row = this.renderRow(this.cm, this.store, rowIndex);
        // insert before rowIndex..
        var e = this.mainBody.createChild(row,this.getRowDom(rowIndex));

        var _this = this;

        if(row.cellObjects.length){
            Roo.each(row.cellObjects, function(r){
                _this.renderCellObject(r);
            })
        }

        if(!isUpdate){
            this.fireEvent("rowsinserted", this, rowIndex);
            //this.syncRowHeights(firstRow, lastRow);
            //this.stripeRows(firstRow);
            //this.layout();
        }

    },


    getRowDom : function(rowIndex)
    {
        var rows = this.el.select('tbody > tr', true).elements;

        return (typeof(rows[rowIndex]) == 'undefined') ? false : rows[rowIndex];

    },
    // returns the object tree for a tr..


    renderRow : function(cm, ds, rowIndex)
    {
        var d = ds.getAt(rowIndex);

        var row = {
            tag : 'tr',
            cls : 'x-row-' + rowIndex,
            cn : []
        };

        var cellObjects = [];

        for(var i = 0, len = cm.getColumnCount(); i < len; i++){
            var config = cm.config[i];

            var renderer = cm.getRenderer(i);
            var value = '';
            var id = false;

            if(typeof(renderer) !== 'undefined'){
                value = renderer(d.data[cm.getDataIndex(i)], false, d);
            }
            // if object are returned, then they are expected to be Roo.bootstrap.Component instances
            // and are rendered into the cells after the row is rendered - using the id for the element.

            if(typeof(value) === 'object'){
                id = Roo.id();
                cellObjects.push({
                    container : id,
                    cfg : value
                })
            }

            var rowcfg = {
                record: d,
                rowIndex : rowIndex,
                colIndex : i,
                rowClass : ''
            };

            this.fireEvent('rowclass', this, rowcfg);

            var td = {
                tag: 'td',
                cls : rowcfg.rowClass + ' x-col-' + i,
                style: '',
                html: (typeof(value) === 'object') ? '' : value
            };

            if (id) {
                td.id = id;
            }

            if(typeof(config.colspan) != 'undefined'){
                td.colspan = config.colspan;
            }

            if(typeof(config.hidden) != 'undefined' && config.hidden){
                td.style += ' display:none;';
            }

            if(typeof(config.align) != 'undefined' && config.align.length){
                td.style += ' text-align:' + config.align + ';';
            }
            if(typeof(config.valign) != 'undefined' && config.valign.length){
                td.style += ' vertical-align:' + config.valign + ';';
            }

            if(typeof(config.width) != 'undefined'){
                td.style += ' width:' +  config.width + 'px;';
            }

            if(typeof(config.cursor) != 'undefined'){
                td.style += ' cursor:' +  config.cursor + ';';
            }

            if(typeof(config.cls) != 'undefined'){
                td.cls = (typeof(td.cls) == 'undefined') ? config.cls : (td.cls + ' ' + config.cls);
            }

            ['xs','sm','md','lg'].map(function(size){

                if(typeof(config[size]) == 'undefined'){
                    return;
                }



                if (!config[size]) { // 0 = hidden
                    // BS 4 '0' is treated as hide that column and below.
                    td.cls += ' hidden-' + size + ' hidden' + size + '-down';
                    return;
                }

                td.cls += ' col-' + size + '-' + config[size] + (
                    size == 'xs' ? (' col-' +   config[size] ) : '' // bs4 col-{num} replaces col-xs
                );


            });

            row.cn.push(td);

        }

        row.cellObjects = cellObjects;

        return row;

    },



    onBeforeLoad : function()
    {

    },
     /**
     * Remove all rows
     */
    clear : function()
    {
        this.el.select('tbody', true).first().dom.innerHTML = '';
    },
    /**
     * Show or hide a row.
     * @param {Number} rowIndex to show or hide
     * @param {Boolean} state hide
     */
    setRowVisibility : function(rowIndex, state)
    {
        var bt = this.mainBody.dom;

        var rows = this.el.select('tbody > tr', true).elements;

        if(typeof(rows[rowIndex]) == 'undefined'){
            return;
        }
        rows[rowIndex].dom.style.display = state ? '' : 'none';
    },


    getSelectionModel : function(){
        if(!this.selModel){
            this.selModel = new Roo.bootstrap.Table.RowSelectionModel({grid: this});
        }
        return this.selModel;
    },
    /*
     * Render the Roo.bootstrap object from renderder
     */
    renderCellObject : function(r)
    {
        var _this = this;

        r.cfg.parentId = (typeof(r.container) == 'string') ? r.container : r.container.id;

        var t = r.cfg.render(r.container);

        if(r.cfg.cn){
            Roo.each(r.cfg.cn, function(c){
                var child = {
                    container: t.getChildContainer(),
                    cfg: c
                };
                _this.renderCellObject(child);
            })
        }
    },

    getRowIndex : function(row)
    {
        var rowIndex = -1;

        Roo.each(this.el.select('tbody > tr', true).elements, function(el, index){
            if(el != row){
                return;
            }

            rowIndex = index;
        });

        return rowIndex;
    },
     /**
     * Returns the grid's underlying element = used by panel.Grid
     * @return {Element} The element
     */
    getGridEl : function(){
        return this.el;
    },
     /**
     * Forces a resize - used by panel.Grid
     * @return {Element} The element
     */
    autoSize : function()
    {
        //var ctr = Roo.get(this.container.dom.parentElement);
        var ctr = Roo.get(this.el.dom);

        var thd = this.getGridEl().select('thead',true).first();
        var tbd = this.getGridEl().select('tbody', true).first();
        var tfd = this.getGridEl().select('tfoot', true).first();

        var cw = ctr.getWidth();

        if (tbd) {

            tbd.setSize(ctr.getWidth(),
                        ctr.getHeight() - ((thd ? thd.getHeight() : 0) + (tfd ? tfd.getHeight() : 0))
            );
            var barsize = (tbd.dom.offsetWidth - tbd.dom.clientWidth);
            cw -= barsize;
        }
        cw = Math.max(cw, this.totalWidth);
        this.getGridEl().select('tr',true).setWidth(cw);
        // resize 'expandable coloumn?

        return; // we doe not have a view in this design..

    },
    onBodyScroll: function()
    {
        //Roo.log("body scrolled');" + this.mainBody.dom.scrollLeft);
        if(this.mainHead){
            this.mainHead.setStyle({
                'position' : 'relative',
                'left': (-1* this.mainBody.dom.scrollLeft) + 'px'
            });
        }

        if(this.lazyLoad){

            var scrollHeight = this.mainBody.dom.scrollHeight;

            var scrollTop = Math.ceil(this.mainBody.getScroll().top);

            var height = this.mainBody.getHeight();

            if(scrollHeight - height == scrollTop) {

                var total = this.ds.getTotalCount();

                if(this.footer.cursor + this.footer.pageSize < total){

                    this.footer.ds.load({
                        params : {
                            start : this.footer.cursor + this.footer.pageSize,
                            limit : this.footer.pageSize
                        },
                        add : true
                    });
                }
            }

        }
    },

    onHeaderChange : function()
    {
        var header = this.renderHeader();
        var table = this.el.select('table', true).first();

        this.mainHead.remove();
        this.mainHead = table.createChild(header, this.mainBody, false);
    },

    onHiddenChange : function(colModel, colIndex, hidden)
    {
        var thSelector = '#' + this.id + ' .x-hcol-' + colIndex;
        var tdSelector = '#' + this.id + ' .x-col-' + colIndex;

        this.CSS.updateRule(thSelector, "display", "");
        this.CSS.updateRule(tdSelector, "display", "");

        if(hidden){
            this.CSS.updateRule(thSelector, "display", "none");
            this.CSS.updateRule(tdSelector, "display", "none");
        }

        this.onHeaderChange();
        this.onLoad();
    },

    setColumnWidth: function(col_index, width)
    {
        // width = "md-2 xs-2..."
        if(!this.colModel.config[col_index]) {
            return;
        }

        var w = width.split(" ");

        var rows = this.el.dom.getElementsByClassName("x-col-"+col_index);

        var h_row = this.el.dom.getElementsByClassName("x-hcol-"+col_index);


        for(var j = 0; j < w.length; j++) {

            if(!w[j]) {
                continue;
            }

            var size_cls = w[j].split("-");

            if(!Number.isInteger(size_cls[1] * 1)) {
                continue;
            }

            if(!this.colModel.config[col_index][size_cls[0]]) {
                continue;
            }

            if(!h_row[0].classList.contains("col-"+size_cls[0]+"-"+this.colModel.config[col_index][size_cls[0]])) {
                continue;
            }

            h_row[0].classList.replace(
                "col-"+size_cls[0]+"-"+this.colModel.config[col_index][size_cls[0]],
                "col-"+size_cls[0]+"-"+size_cls[1]
            );

            for(var i = 0; i < rows.length; i++) {

                var size_cls = w[j].split("-");

                if(!Number.isInteger(size_cls[1] * 1)) {
                    continue;
                }

                if(!this.colModel.config[col_index][size_cls[0]]) {
                    continue;
                }

                if(!rows[i].classList.contains("col-"+size_cls[0]+"-"+this.colModel.config[col_index][size_cls[0]])) {
                    continue;
                }

                rows[i].classList.replace(
                    "col-"+size_cls[0]+"-"+this.colModel.config[col_index][size_cls[0]],
                    "col-"+size_cls[0]+"-"+size_cls[1]
                );
            }

            this.colModel.config[col_index][size_cls[0]] = size_cls[1];
        }
    }
});