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<?php |
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/* |
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* This file is part of the BreadcrumbsBundle. |
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* |
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* (c) Yonel Ceruto <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Yceruto\Bundle\BreadcrumbsBundle; |
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class Breadcrumbs implements \Countable, \IteratorAggregate, \ArrayAccess |
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{ |
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/** |
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* @var BreadcrumbsNode[] |
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*/ |
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private $nodes = array(); |
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/** |
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* Add a node. |
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* |
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* @param string $path |
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* @param string $label |
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* |
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* @return BreadcrumbsNode |
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*/ |
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public function add($path, $label) |
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{ |
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$node = new BreadcrumbsNode($path, $label); |
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$this->addNode($node); |
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return $node; |
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} |
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/** |
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* @param BreadcrumbsNode $node |
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* |
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* @return Breadcrumbs |
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*/ |
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public function addNode(BreadcrumbsNode $node) |
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{ |
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if (!$this->containsNode($node)) { |
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$this->nodes[] = $node; |
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} |
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return $this; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function remove($index) |
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{ |
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if (!isset($this->nodes[$index]) && !array_key_exists($index, $this->nodes)) { |
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return; |
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} |
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$removed = $this->nodes[$index]; |
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unset($this->nodes[$index]); |
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return $removed; |
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} |
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/** |
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* @param BreadcrumbsNode $node |
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* |
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* @return bool |
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*/ |
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public function removeNode(BreadcrumbsNode $node) |
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{ |
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$index = array_search($node, $this->nodes, true); |
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if ($index === false) { |
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return false; |
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} |
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unset($this->nodes[$index]); |
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return true; |
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} |
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/** |
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* @param BreadcrumbsNode $node |
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* |
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* @return bool |
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*/ |
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public function containsNode(BreadcrumbsNode $node) |
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{ |
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return in_array($node, $this->nodes, true); |
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} |
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/** |
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* @return BreadcrumbsNode[] |
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*/ |
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public function getNodes() |
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{ |
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return $this->nodes; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function count() |
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{ |
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return count($this->nodes); |
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} |
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/** |
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* @return BreadcrumbsNode|bool |
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*/ |
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public function first() |
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{ |
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return reset($this->nodes); |
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} |
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/** |
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* @return BreadcrumbsNode|bool |
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*/ |
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public function last() |
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{ |
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return end($this->nodes); |
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} |
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/** |
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* @return BreadcrumbsNode|bool |
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*/ |
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public function current() |
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{ |
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return current($this->nodes); |
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} |
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/** |
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* @return BreadcrumbsNode|bool |
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*/ |
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public function next() |
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{ |
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return next($this->nodes); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function getIterator() |
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{ |
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return new \ArrayIterator($this->nodes); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function offsetExists($index) |
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{ |
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return isset($this->nodes[$index]) || array_key_exists($index, $this->nodes); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function offsetGet($index) |
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{ |
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return isset($this->nodes[$index]) ? $this->nodes[$index] : null; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function offsetSet($index, $value) |
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{ |
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if (isset($index)) { |
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$this->nodes[$index] = $value; |
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} else { |
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$this->addNode($value); |
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} |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function offsetUnset($offset) |
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{ |
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return $this->remove($offset); |
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} |
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} |
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yceruto /
breadcrumbs-bundle
