[OpenLayers-Users] copy selected features and paste in the same layer

[summer7310]

I try to create a class about copy function,but it seems does not work.
 OpenLayers.Control.Copy = OpenLayers.Class(OpenLayers.Control, {
    initialize: function(vectorLayer, mousePositionCtl) {
        this.layer = vectorLayer;
        this.mousePositionCtl = mousePositionCtl;
        OpenLayers.Control.prototype.initialize.apply(this, arguments);
    },   
    destroy: function() {
        if (this.handler) {
            this.handler.destroy();
        }        
        this.handler = null;
        
        OpenLayers.Control.prototype.destroy.apply(this, arguments);
    },
    draw: function() {
        this.handler = new OpenLayers.Handler.Keyboard( this, { 
                                "keydown": this.defaultKeyPress }, {
                                "keyMask": OpenLayers.Handler.MOD_CTRL
                                });
        this.activate();
    },
    defaultKeyPress: function (evt) {      
        switch(evt.keyCode) {
            case 86:
                var vector = this.layer.selectedFeatures[0];
                if(vector) {
                    var lonLat =
this.layer.map.getLonLatFromPixel(this.mousePositionCtl.lastXy);
                    var newVector = vector.clone();
                    this.layer.addFeatures([newVector]);
                    newVector.move(lonLat);
                }
        } 
    },
    CLASS_NAME: "OpenLayers.Control.Copy"
});




If any one has some suggestions ,thanks 



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