Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\workflows;
Chris@0: 
Chris@0: /**
Chris@0:  * A transition value object that describes the transition between states.
Chris@0:  */
Chris@0: class Transition implements TransitionInterface {
Chris@0: 
Chris@0:   /**
Chris@0:    * The workflow that this transition is attached to.
Chris@0:    *
Chris@0:    * @var \Drupal\workflows\WorkflowInterface
Chris@0:    */
Chris@0:   protected $workflow;
Chris@0: 
Chris@0:   /**
Chris@0:    * The transition's ID.
Chris@0:    *
Chris@0:    * @var string
Chris@0:    */
Chris@0:   protected $id;
Chris@0: 
Chris@0:   /**
Chris@0:    * The transition's label.
Chris@0:    *
Chris@0:    * @var string
Chris@0:    */
Chris@0:   protected $label;
Chris@0: 
Chris@0:   /**
Chris@0:    * The transition's from state IDs.
Chris@0:    *
Chris@0:    * @var string[]
Chris@0:    */
Chris@0:   protected $fromStateIds;
Chris@0: 
Chris@0:   /**
Chris@0:    * The transition's to state ID.
Chris@0:    *
Chris@0:    * @var string
Chris@0:    */
Chris@0:   protected $toStateId;
Chris@0: 
Chris@0:   /**
Chris@0:    * The transition's weight.
Chris@0:    *
Chris@0:    * @var int
Chris@0:    */
Chris@0:   protected $weight;
Chris@0: 
Chris@0:   /**
Chris@0:    * Transition constructor.
Chris@0:    *
Chris@0:    * @param \Drupal\workflows\WorkflowInterface $workflow
Chris@0:    *   The workflow the state is attached to.
Chris@0:    * @param string $id
Chris@0:    *   The transition's ID.
Chris@0:    * @param string $label
Chris@0:    *   The transition's label.
Chris@0:    * @param array $from_state_ids
Chris@0:    *   A list of from state IDs.
Chris@0:    * @param string $to_state_id
Chris@0:    *   The to state ID.
Chris@0:    * @param int $weight
Chris@0:    *   (optional) The transition's weight. Defaults to 0.
Chris@0:    */
Chris@0:   public function __construct(WorkflowTypeInterface $workflow, $id, $label, array $from_state_ids, $to_state_id, $weight = 0) {
Chris@0:     $this->workflow = $workflow;
Chris@0:     $this->id = $id;
Chris@0:     $this->label = $label;
Chris@0:     $this->fromStateIds = $from_state_ids;
Chris@0:     $this->toStateId = $to_state_id;
Chris@0:     $this->weight = $weight;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function id() {
Chris@0:     return $this->id;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function label() {
Chris@0:     return $this->label;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function from() {
Chris@0:     return $this->workflow->getStates($this->fromStateIds);
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function to() {
Chris@0:     return $this->workflow->getState($this->toStateId);
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function weight() {
Chris@0:     return $this->weight;
Chris@0:   }
Chris@0: 
Chris@0: }