Triggerer.php

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<?php
namespace ILIAS\UI\Implementation\Component;
 
use ILIAS\UI\Component;
 
trait Triggerer
{
 
    protected $triggered_signals = array();
 
    protected function appendTriggeredSignal(Component\Signal $signal, $event)
    {
        $clone = clone $this;
        if (!is_array($clone->triggered_signals[$event])) {
            $clone->triggered_signals[$event] = array();
        }
        $clone->triggered_signals[$event][] = new TriggeredSignal($signal, $event);
        return $clone;
    }
 
    protected function addTriggeredSignal(Component\Signal $signal, $event)
    {
        $clone = clone $this;
        $clone->triggered_signals[$event] = array();
        $clone->triggered_signals[$event][] = new TriggeredSignal($signal, $event);
        return $clone;
    }
 
    public function getTriggeredSignals()
    {
        return $this->flattenArray($this->triggered_signals);
    }
 
    public function withResetTriggeredSignals()
    {
        $clone = clone $this;
        $clone->triggered_signals = array();
        return $clone;
    }
 
    private function flattenArray(array $array)
    {
        $flatten = array();
        array_walk_recursive($array, function ($a) use (&$flatten) {
            $flatten[] = $a;
        });
        return $flatten;
    }
}