v1.1

2025-10-13 09:04:00 +00:00
parent 7a3b2960f8
commit 4ee3212899
230 changed files with 40880 additions and 245 deletions
@@ -0,0 +1,134 @@
+<?php
+namespace Workerman\Http;
+class Emitter
+{
+    /**
+     * [event=>[[listener1, once?], [listener2,once?], ..], ..]
+     */
+    protected $_eventListenerMap = array();
+
+    /**
+     * On.
+     *
+     * @param $event_name
+     * @param $listener
+     * @return $this
+     */
+    public function on($event_name, $listener)
+    {
+        $this->emit('newListener', $event_name, $listener);
+        $this->_eventListenerMap[$event_name][] = array($listener, 0);
+        return $this;
+    }
+
+    /**
+     * Once.
+     *
+     * @param $event_name
+     * @param $listener
+     * @return $this
+     */
+    public function once($event_name, $listener)
+    {
+        $this->_eventListenerMap[$event_name][] = array($listener, 1);
+        return $this;
+    }
+
+    /**
+     * RemoveListener.
+     *
+     * @param $event_name
+     * @param $listener
+     * @return $this
+     */
+    public function removeListener($event_name, $listener)
+    {
+        if(!isset($this->_eventListenerMap[$event_name]))
+        {
+            return $this;
+        }
+        foreach($this->_eventListenerMap[$event_name] as $key=>$item)
+        {
+            if($item[0] === $listener)
+            {
+                $this->emit('removeListener', $event_name, $listener);
+                unset($this->_eventListenerMap[$event_name][$key]);
+            }
+        }
+        if(empty($this->_eventListenerMap[$event_name]))
+        {
+            unset($this->_eventListenerMap[$event_name]);
+        }
+        return $this;
+    }
+
+    /**
+     * RemoveAllListeners.
+     *
+     * @param null $event_name
+     * @return $this
+     */
+    public function removeAllListeners($event_name = null)
+    {
+        $this->emit('removeListener', $event_name);
+        if(null === $event_name)
+        {
+            $this->_eventListenerMap = array();
+            return $this;
+        }
+        unset($this->_eventListenerMap[$event_name]);
+        return $this;
+    }
+
+    /**
+     *
+     * Listeners.
+     *
+     * @param $event_name
+     * @return array
+     */
+    public function listeners($event_name)
+    {
+        if(empty($this->_eventListenerMap[$event_name]))
+        {
+            return array();
+        }
+        $listeners = array();
+        foreach($this->_eventListenerMap[$event_name] as $item)
+        {
+            $listeners[] = $item[0];
+        }
+        return $listeners;
+    }
+
+    /**
+     * Emit.
+     *
+     * @param null $event_name
+     * @return bool
+     */
+    public function emit($event_name = null)
+    {
+        if(empty($event_name) || empty($this->_eventListenerMap[$event_name]))
+        {
+            return false;
+        }
+        foreach($this->_eventListenerMap[$event_name] as $key=>$item)
+        {
+             $args = func_get_args();
+             unset($args[0]);
+             call_user_func_array($item[0], $args);
+             // once ?
+             if($item[1])
+             {
+                 unset($this->_eventListenerMap[$event_name][$key]);
+                 if(empty($this->_eventListenerMap[$event_name]))
+                 {
+                     unset($this->_eventListenerMap[$event_name]);
+                 }
+             }
+        }
+        return true;
+    }
+
+}