From 23f2b6ef8319fc0b55d92d3cf5c1cf1ebf3d0fc9 Mon Sep 17 00:00:00 2001
From: Alejandro Hurtado <ahurt2000@gmail.com>
Date: Tue, 24 Feb 2015 17:08:10 +0100
Subject: [PATCH] to reject the event

The  [issue 77] (https://github.com/yohang/Finite/issues/77) explain the problem. I suggest this change to resolve it.
---
 src/Finite/StateMachine/StateMachine.php | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/src/Finite/StateMachine/StateMachine.php b/src/Finite/StateMachine/StateMachine.php
index 3be6a7b..b203365 100644
--- a/src/Finite/StateMachine/StateMachine.php
+++ b/src/Finite/StateMachine/StateMachine.php
@@ -120,7 +120,11 @@ public function apply($transitionName)
     {
         $transition = $this->getTransition($transitionName);
         $event      = new TransitionEvent($this->getCurrentState(), $transition, $this);
-        if (!$this->can($transition)) {
+        
+        $this->dispatcher->dispatch(FiniteEvents::PRE_TRANSITION, $event);
+        $this->dispatcher->dispatch(FiniteEvents::PRE_TRANSITION.'.'.$transitionName, $event);
+
+        if (!$this->can($event->getTransition()) || $event->isRejected()) {
             throw new Exception\StateException(sprintf(
                 'The "%s" transition can not be applied to the "%s" state of object "%s" with graph "%s".',
                 $transition->getName(),
@@ -130,9 +134,6 @@ public function apply($transitionName)
             ));
         }
 
-        $this->dispatcher->dispatch(FiniteEvents::PRE_TRANSITION, $event);
-        $this->dispatcher->dispatch(FiniteEvents::PRE_TRANSITION . '.' . $transitionName, $event);
-
         $returnValue = $transition->process($this);
         $this->stateAccessor->setState($this->object, $transition->getState());
         $this->currentState = $this->getState($transition->getState());