DataState

class webix.DataState()

Datastate mixin

References

helpers
extend().
views
datatable().

External references

Official documentation page.

Code

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webix.DataState = {
    getState:function(){
        var cols_n = this.config.columns.length;
        var columns = this.config.columns;
        var settings = {
            ids:[],
            size:[],
            select:this.getSelectedId(true),
            scroll:this.getScrollState()
        };
        for(var i = 0; i < cols_n; i++){
            settings.ids.push(columns[i].id);
            settings.size.push(columns[i].width);
        }

        settings.order = [].concat(this._hidden_column_order.length ? this._hidden_column_order : settings.ids);

        if(this._last_sorted){
            settings.sort={
                id:this._last_sorted,
                dir:this._last_order
            };
        }

        //this method will try to access the rendered values
        //just ignore it if grid is not rendered yet
        if (this._filter_elements && this._dtable_fully_ready) {
            var filter = {};
            var any_filter = 0;
            for (var key in this._filter_elements) {
                if (this._hidden_column_hash[key]) continue;

                var f = this._filter_elements[key];
                f[1].value = filter[key] = f[2].getValue(f[0]);
                any_filter = 1;
            }
            if (any_filter)
                settings.filter=filter;
        }

        settings.hidden = [];
        for (var key in this._hidden_column_hash)
            settings.hidden.push(key);

        return settings;
    },
    setState:function(obj){
        var columns = this.config.columns;
        if(!obj) return;

        this._last_sorted = null;
        this.blockEvent();

        if (obj.hidden){
            var hihash = {};
            for (var i=0; i<obj.hidden.length; i++){
                hihash[obj.hidden[i]] = true;
                if(!this._hidden_column_order.length)
                    this.hideColumn(obj.hidden[i]);
            }

            if(this._hidden_column_order.length){
                for (var i=0; i<this._hidden_column_order.length; i++){
                    var hikey = this._hidden_column_order[i];
                    if (!!hihash[hikey] == !this._hidden_column_hash[hikey])
                        this.hideColumn(hikey, !!hihash[hikey]);
                }
            }
        }

        if (obj.ids){
            var reorder = false;
            var cols = this.config.columns;
            for (var i=0; i<cols.length; i++)
                if (cols[i].id != obj.ids[i])
                    reorder = true;
            if (reorder){
                for (var i=0; i<obj.ids.length; i++)
                    cols[i] = this.getColumnConfig(obj.ids[i]) || cols[i];
                this.refreshColumns();
            }
        }

        if (obj.size){
            var cols_n = Math.min(obj.size.length, columns.length);
            for(var i = 0; i < cols_n; i++){
                if(columns[i] && columns[i].width != obj.size[i])
                    this._setColumnWidth( i, obj.size[i], true);
            }
        }

        this.unblockEvent();

        var silent = !(this._settings.leftSplit || this._settings.rightSplit);
        this._updateColsSizeSettings(silent);
        this.callEvent("onStructureUpdate", []);

        if(obj.sort){
            var column = columns[this.getColumnIndex(obj.sort.id)];
            if (column)
                this._sort(obj.sort.id, obj.sort.dir, column.sort);
        }

        if (obj.filter){
            //temporary disable filtering
            var temp = this.filterByAll;
            this.filterByAll = function(){};

            //apply defined filters
            for (var key in obj.filter) {
                var value = obj.filter[key];
                if (!value) continue;

                if (!this._filter_elements[key]) continue;
                var f = this._filter_elements[key];
                f[2].setValue(f[0], value);
                var contentid = f[1].contentId;
                if (contentid)
                    this._active_headers[contentid].value = value;
            }

            //remove old filters
            for (var key in this._filter_elements){
                if (!obj.filter[key]){
                    var f = this._filter_elements[key];
                    f[2].setValue(f[0], "");
                }
            }

            //restore and apply filtering
            this.filterByAll = temp;
            this.filterByAll();
        }

        if (obj.select && this.select){
            var select = obj.select;
            this.unselect();
            for (var i = 0; i < select.length; i++)
                if (!select[i].row || this.exists(select[i].row))
                    this._select(select[i], true);
        }

        if(obj.scroll)
            this.scrollTo(obj.scroll.x, obj.scroll.y);
    }
};

webix.extend(webix.ui.datatable, webix.DataState);