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<?php |
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/** |
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* TForkable class file. |
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* |
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* @author Brad Anderson <[email protected]> |
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* @link https://github.com/pradosoft/prado |
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* @license https://github.com/pradosoft/prado/blob/master/LICENSE |
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*/ |
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namespace Prado\Util\Behaviors; |
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use Prado\TComponent; |
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use Prado\Util\Helpers\TProcessHelper; |
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/** |
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* TForkable class. |
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* |
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* This attaches the Owner Component `fxPrepareForFork` and `fxRestoreAfterFork` |
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* methods as the event handlers for the PRADO global event `fxPrepareForFork` and |
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* `fxRestoreAfterFork`, respectively. |
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* |
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* This should only be used when the TComponent is not {@see \Prado\TComponent::listen()}ing |
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* or the handlers will be double added. |
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* |
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* @author Brad Anderson <[email protected]> |
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* @since 4.2.3 |
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*/ |
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class TForkable extends \Prado\Util\TBehavior |
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{ |
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private int $_methods = 0; |
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/** |
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* Attaches the component event handlers: |
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* {@see \Prado\TComponent::fxAttachClassBehavior()} and {@see \Prado\TComponent::fxDetachClassBehavior()} |
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* @param TComponent $component |
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* @return bool Attaching handlers. |
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*/ |
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protected function attachEventHandlers(TComponent $component): bool |
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{ |
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if ($return = parent::attachEventHandlers($component)) { |
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if ($component->hasMethod(TProcessHelper::FX_PREPARE_FOR_FORK)) { |
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$this->_methods |= 1; |
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$component->attachEventHandler(TProcessHelper::FX_PREPARE_FOR_FORK, [$component, TProcessHelper::FX_PREPARE_FOR_FORK], $this->getPriority()); |
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} |
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if ($component->hasMethod(TProcessHelper::FX_RESTORE_AFTER_FORK)) { |
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$this->_methods |= 2; |
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$component->attachEventHandler(TProcessHelper::FX_RESTORE_AFTER_FORK, [$component, TProcessHelper::FX_RESTORE_AFTER_FORK], $this->getPriority()); |
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} |
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} |
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return $return; |
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} |
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protected function detachEventHandlers(TComponent $component): bool |
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{ |
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if ($return = parent::detachEventHandlers($component)) { |
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if ($this->_methods & 1) { |
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$component->detachEventHandler(TProcessHelper::FX_PREPARE_FOR_FORK, [$component, TProcessHelper::FX_PREPARE_FOR_FORK]); |
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} |
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if ($this->_methods & 2) { |
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$component->detachEventHandler(TProcessHelper::FX_RESTORE_AFTER_FORK, [$component, TProcessHelper::FX_RESTORE_AFTER_FORK]); |
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} |
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$this->_methods = 0; |
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} |
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return $return; |
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} |
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} |
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pradosoft /
prado
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