CallableListener::__construct()   A
last analyzed

Complexity

Conditions 1
Paths 1

Size

Total Lines 4
Code Lines 2

Duplication

Lines 0
Ratio 0 %

Importance

Changes 0
Metric Value
eloc 2
dl 0
loc 4
rs 10
c 0
b 0
f 0
cc 1
nc 1
nop 1
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<?php
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/**
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 * Platine Event Dispatcher
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 *
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 * Platine Event Dispatcher is the minimal implementation of PSR 14
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 *
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 * This content is released under the MIT License (MIT)
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 *
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 * Copyright (c) 2020 Platine Event Dispatcher
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * of this software and associated documentation files (the "Software"), to deal
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 * in the Software without restriction, including without limitation the rights
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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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 * copies of the Software, and to permit persons to whom the Software is
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 * furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included in all
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 * copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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 * SOFTWARE.
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 */
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/**
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 *  @file CallableListener.php
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 *
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 *  This class is used to manager listener using callable
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 *
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 *  @package    Platine\Event
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 *  @author Platine Developers Team
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 *  @copyright  Copyright (c) 2020
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 *  @license    http://opensource.org/licenses/MIT  MIT License
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 *  @link   https://www.platine-php.com
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 *  @version 1.0.0
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 *  @filesource
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 */
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declare(strict_types=1);
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namespace Platine\Event\Listener;
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use Platine\Event\EventInterface;
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/**
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 * @class CallableListener
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 * @package Platine\Event\Listener
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 */
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class CallableListener implements ListenerInterface
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{
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    /**
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     * The callable
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     * @var callable
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     */
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    protected $callable;
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    /**
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     * The listeners
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     * @var array<$this>
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     */
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    protected static $listeners = [];
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    /**
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     * Create new instance
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     * @param  callable $callable
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     */
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    public function __construct(callable $callable)
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    {
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        $this->callable = $callable;
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        static::$listeners[] = $this;
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    }
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    /**
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     * Return the callable
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     * @return callable
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     */
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    public function getCallable(): callable
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    {
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        return $this->callable;
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    }
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    /**
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     * Create new instance using the given callable
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     * @param  callable $callable the callable
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     * @return self the new instance
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     */
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    public static function fromCallable(callable $callable): self
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    {
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        $listener = new self($callable);
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        return $listener;
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    }
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    /**
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     * Search the listener for given callable
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     * @param  callable $callable the callable
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     * @return $this|false
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     */
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    public static function getListener(callable $callable): self|false
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    {
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        foreach (static::$listeners as $listener) {
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            if ($listener->getCallable() == $callable) {
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                return $listener;
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            }
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        }
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        return false;
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    }
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    /**
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     * Removes all registered callable-listeners.
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     * @return void
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     */
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    public static function clear(): void
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    {
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        static::$listeners = [];
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    }
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    /**
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     * {@inheritdoc}
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     *
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     * @return mixed
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     */
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    public function handle(EventInterface $event): mixed
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    {
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        ($this->callable)($event);
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        return true;
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    }
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}
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