自定義事件

在 EasySwoole 中，可以通過 \EasySwoole\Component\Container 容器實現自定義事件功能。

使用示例

定義事件容器

新增 App\Event\Event.php 文件，內容如下：

<?php
/**
 * This file is part of EasySwoole.
 *
 * @link http://www.zbjtqy.com
 * @document http://www.zbjtqy.com
 * @contact http://www.zbjtqy.com/Preface/contact.html
 * @license https://github.com/easy-swoole/easyswoole/blob/3.x/LICENSE
 */

namespace App\Event;

use EasySwoole\Component\Container;
use EasySwoole\Component\Singleton;

class Event extends Container
{
    use Singleton;

    public function set($key, $item)
    {
        if (is_callable($item)) {
            return parent::set($key, $item);
        } else {
            return false;
        }
    }

    public function hook($event, ...$args)
    {
        $call = $this->get($event);
        if (is_callable($call)) {
            return call_user_func($call, ...$args);
        } else {
            return null;
        }
    }
}

注冊事件

在框架的 initialize 事件（即項目根目錄的 EasySwooleEvent.php 的 initialize 函數）中進行注冊事件：

<?php
/**
 * This file is part of EasySwoole.
 *
 * @link http://www.zbjtqy.com
 * @document http://www.zbjtqy.com
 * @contact http://www.zbjtqy.com/Preface/contact.html
 * @license https://github.com/easy-swoole/easyswoole/blob/3.x/LICENSE
 */

namespace EasySwoole\EasySwoole;

use EasySwoole\EasySwoole\AbstractInterface\Event;
use EasySwoole\EasySwoole\Swoole\EventRegister;

class EasySwooleEvent implements Event
{
    public static function initialize()
    {
        // 注冊事件
        \App\Event\Event::getInstance()->set('test', function () {
            echo 'this is test event!' . PHP_EOL;
        });
    }

    public static function mainServerCreate(EventRegister $register)
    {

    }
}

觸發事件

注冊事件之后，就可以在框架的任意位置觸發事件來進行調用，調用形式如下：

<?php
\App\Event\Event::getInstance()->hook('test');

在控制器中觸發事件進行調用

<?php
/**
 * This file is part of EasySwoole.
 *
 * @link http://www.zbjtqy.com
 * @document http://www.zbjtqy.com
 * @contact http://www.zbjtqy.com/Preface/contact.html
 * @license https://github.com/easy-swoole/easyswoole/blob/3.x/LICENSE
 */

namespace App\HttpController;

use EasySwoole\Http\AbstractInterface\Controller;

class Index extends Controller
{
    public function index()
    {
        // 觸發事件
        \App\Event\Event::getInstance()->hook('test');
    }
}