public function getSupportedEventsFor(StateMachineInterface $state_machine, $state_name, $write_only = false)
{
$write_events = $this->getWriteEventNames();
return array_filter(array_keys($state_machine->getTransitions($state_name)), function ($event_name) use($write_events, $write_only) {
if ($event_name === StateMachine::SEQ_TRANSITIONS_KEY) {
return false;
}
if ($write_only && !in_array($event_name, $write_events)) {
return false;
}
return true;
});
}
/**
* Creates an array of dot-graph edges that connect the (state)nodes of the dot-graph.
*
* @param StateMachineInterface $state_machine
*
* @return array An array of strings, that represent the particular dot-graph edges.
*/
protected function getEdges(StateMachineInterface $state_machine)
{
$edges = [];
foreach ($state_machine->getTransitions() as $state_name => $state_transitions) {
foreach ($state_transitions as $event_name => $transitions) {
foreach ($transitions as $transition) {
$edges[] = $this->createEdge($transition, $state_name, $event_name);
}
}
}
$state_name = $state_machine->getInitialState()->getName();
$edges[] = sprintf('0 -> %s [color="%s"]', $this->node_id_map[$state_name], $this->getStyle('edge.colors.default', self::EDGE_DEFAULT_COLOR));
return $edges;
}
