source: Dev/trunk/src/client/dojox/grid/DataSelection.js

define([
        "dojo/_base/declare",
        "./_SelectionPreserver",
        "./Selection"
], function(declare, _SelectionPreserver, Selection){
        
return declare("dojox.grid.DataSelection", Selection, {
        constructor: function(grid){
                if(grid.keepSelection){
                        this.preserver = new _SelectionPreserver(this);
                }
        },
        
        destroy: function(){
                if(this.preserver){
                        this.preserver.destroy();
                }
        },
        
        getFirstSelected: function(){
                var idx = Selection.prototype.getFirstSelected.call(this);

                if(idx == -1){ return null; }
                return this.grid.getItem(idx);
        },

        getNextSelected: function(inPrev){
                var old_idx = this.grid.getItemIndex(inPrev);
                var idx = Selection.prototype.getNextSelected.call(this, old_idx);

                if(idx == -1){ return null; }
                return this.grid.getItem(idx);
        },

        getSelected: function(){
                var result = [];
                for(var i=0, l=this.selected.length; i<l; i++){
                        if(this.selected[i]){
                                result.push(this.grid.getItem(i));
                        }
                }
                return result;
        },

        addToSelection: function(inItemOrIndex){
                if(this.mode == 'none'){ return; }
                var idx = null;
                if(typeof inItemOrIndex == "number" || typeof inItemOrIndex == "string"){
                        idx = inItemOrIndex;
                }else{
                        idx = this.grid.getItemIndex(inItemOrIndex);
                }
                Selection.prototype.addToSelection.call(this, idx);
        },

        deselect: function(inItemOrIndex){
                if(this.mode == 'none'){ return; }
                var idx = null;
                if(typeof inItemOrIndex == "number" || typeof inItemOrIndex == "string"){
                        idx = inItemOrIndex;
                }else{
                        idx = this.grid.getItemIndex(inItemOrIndex);
                }
                Selection.prototype.deselect.call(this, idx);
        },

        deselectAll: function(inItemOrIndex){
                var idx = null;
                if(inItemOrIndex || typeof inItemOrIndex == "number"){
                        if(typeof inItemOrIndex == "number" || typeof inItemOrIndex == "string"){
                                idx = inItemOrIndex;
                        }else{
                                idx = this.grid.getItemIndex(inItemOrIndex);
                        }
                        Selection.prototype.deselectAll.call(this, idx);
                }else{
                        this.inherited(arguments);
                }
        }
});
});