this.marker.highlight.repaint()):this.marker.markCell(this.constraintHandler.currentFocus.cell,"transparent"),a=this.graph.getModel(),a=this.graph.view.getTerminalPort(this.state,this.graph.view.getState(a.getTerminal(this.state.cell,!this.isSource)),!this.isSource),a=null!=a?a.cell:null,this.error=this.validateConnection(this.isSource?this.constraintHandler.currentFocus.cell:a,this.isSource?a:this.constraintHandler.currentFocus.cell),a=null,null==this.error&&(a=this.constraintHandler.currentFocus),