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<?php |
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namespace rtens\domin\delivery\web; |
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use rtens\domin\Action; |
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use rtens\domin\delivery\ParameterReader; |
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class BreadCrumbsTrail { |
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/** @var BreadCrumb[] */ |
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private $crumbs; |
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/** @var ParameterReader */ |
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private $reader; |
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/** |
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* @param ParameterReader $reader |
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* @param BreadCrumb[] $crumbs |
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*/ |
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public function __construct(ParameterReader $reader, array $crumbs) { |
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$this->crumbs = $crumbs; |
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$this->reader = $reader; |
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} |
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/** |
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* @return bool |
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*/ |
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public function hasCrumbs() { |
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return !empty($this->crumbs); |
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} |
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/** |
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* @return array|BreadCrumb[] |
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*/ |
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public function getCrumbs() { |
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return $this->crumbs; |
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} |
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/** |
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* @return BreadCrumb |
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* @throws \Exception If there are no crumbs |
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*/ |
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public function getLastCrumb() { |
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if (!$this->hasCrumbs()) { |
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throw new \Exception("There are no crumbs"); |
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} |
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return $this->crumbs[count($this->crumbs) - 1]; |
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} |
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/** |
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* @param Action $action |
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* @param string $actionId |
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* @return array|BreadCrumb[] |
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*/ |
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public function updateCrumbs(Action $action, $actionId) { |
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$current = new BreadCrumb($action->caption(), (string)Url::relative($actionId, $this->readRawParameters($action))); |
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$newCrumbs = []; |
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foreach ($this->crumbs as $crumb) { |
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if ($crumb == $current) { |
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break; |
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} |
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$newCrumbs[] = $crumb; |
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} |
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$newCrumbs[] = $current; |
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$this->crumbs = $newCrumbs; |
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return $newCrumbs; |
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} |
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public function reset() { |
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$this->crumbs = []; |
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} |
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private function readRawParameters(Action $action) { |
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$values = []; |
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foreach ($action->parameters() as $parameter) { |
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if ($this->reader->has($parameter)) { |
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$values[$parameter->getName()] = $this->reader->read($parameter); |
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} |
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} |
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return $values; |
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} |
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} |
rtens /
domin
