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<?php |
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namespace Saltwater\Water; |
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class TempStack extends \ArrayObject |
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{ |
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/** |
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* @var string |
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*/ |
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private $root = 'root'; |
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/** |
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* @var string |
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*/ |
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private $master = 'root'; |
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public function __construct() |
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{ |
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$this[] = $this->root; |
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} |
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/** |
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* Set the root module by name |
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* |
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* @param string $name |
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*/ |
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public function setRoot($name) |
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{ |
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if (empty($name) || ($name == $this->root)) { |
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return; |
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} |
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$this->root = $name; |
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} |
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public function isRoot($name) |
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{ |
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return $name == $this->root; |
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} |
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public function getRoot() |
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{ |
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return $this->root; |
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} |
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/** |
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* Set the master module by name |
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* |
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* @param string $name |
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* |
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* @return string previous master |
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*/ |
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public function setMaster($name) |
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{ |
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if (empty($name) || ($name == $this->master)) { |
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return $this->master; |
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} |
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$previous_master = $this->master; |
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$this->master = $name; |
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$this->pushStack($name); |
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return $previous_master; |
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} |
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/** |
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* Test whether a module name is the current master module |
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* |
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* @param string $name |
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* |
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* @return bool |
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*/ |
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public function isMaster($name) |
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{ |
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return $name == $this->master; |
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} |
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/** |
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* Get the name of the current master module |
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* |
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* @return string |
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*/ |
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public function getMaster() |
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{ |
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return $this->master; |
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} |
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/** |
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* Push a module name onto the stack, establishing later hierarchy for calls |
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* |
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* @param string $name |
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*/ |
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private function pushStack($name) |
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{ |
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if (in_array($name, (array) $this)) { |
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return; |
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} |
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$this[] = $name; |
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} |
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/** |
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* Get the current ordered stack of modules that are loaded |
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* |
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* @return array |
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*/ |
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public function modulePrecedence() |
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{ |
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$return = array(); |
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foreach ((array) $this as $module) { |
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array_unshift($return, $module); |
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if ($module == $this->master) { |
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break; |
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} |
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} |
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return $return; |
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} |
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/** |
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* Jump to the next master or return false if we're already on it |
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* |
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* @return bool|string |
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*/ |
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public function advanceMaster() |
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{ |
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$master = array_search($this->master, (array) $this); |
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if ($master == ($this->count() - 1)) { |
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return false; |
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} |
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$this->master = $this[$master + 1]; |
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return $this->master; |
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} |
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} |
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