Method registerCanvasHandler

go/session.go:177–181

(handler CanvasHandler)

}

func (s *Session) registerCanvasHandler(handler CanvasHandler) {
	s.canvasMu.Lock()
	defer s.canvasMu.Unlock()
	s.canvasHandler = handler
}

func (s *Session) getCanvasHandler() CanvasHandler {
	s.canvasMu.RLock()