From b12010b1780a04a7a7c71ff6ebe12ae378725e43 Mon Sep 17 00:00:00 2001
From: Perry Rylance <perryrylance@googlemail.com>
Date: Sat, 7 Nov 2020 10:04:17 +0000
Subject: [PATCH] 1.0.1

- Added support for eventDispatcherParent property, which can be used to override parent. Useful when using parent would collide with other libraries
- Fixed bug where removing one or more listeners during trigger function would cause listeners to be skipped
---
 event-dispatcher.js | 26 ++++++++++++++++++++------
 package.json        |  2 +-
 2 files changed, 21 insertions(+), 7 deletions(-)

diff --git a/event-dispatcher.js b/event-dispatcher.js
index 7c570e2..365515b 100644
--- a/event-dispatcher.js
+++ b/event-dispatcher.js
@@ -81,7 +81,7 @@ class EventDispatcher
 			listener: listener,
 			thisObject: (thisObject ? thisObject : this),
 			useCapture: (useCapture ? true : false)
-			};
+		};
 			
 		target.push(obj);
 		
@@ -151,11 +151,19 @@ class EventDispatcher
 					event[name] = src[name];
 			}
 		}
+		
+		function getParent(subject)
+		{
+			if("eventDispatcherParent" in subject)
+				return subject.eventDispatcherParent;
+			
+			return subject.parent;
+		}
 
 		event.target = this;
 			
 		var path = [];
-		for(var obj = this.parent; obj != null; obj = obj.parent)
+		for(var obj = getParent(this); obj != null; obj = getParent(obj))
 			path.unshift(obj);
 		
 		event.phase = Event.CAPTURING_PHASE;
@@ -174,7 +182,7 @@ class EventDispatcher
 		
 		// Native DOM event
 		var topMostElement = this.element;
-		for(var obj = this.parent; obj != null; obj = obj.parent)
+		for(var obj = getParent(this); obj != null; obj = getParent(obj))
 		{
 			if(obj.element)
 				topMostElement = obj.element;
@@ -263,14 +271,20 @@ class EventDispatcher
 		if(!(arr = this._listenersByType[event.type]))
 			return;
 		
-		for(var i = 0; i < arr.length; i++)
+		// Create a copy of the array, in case any listeners are unbound during iteration
+		var chain = arr.slice();
+		
+		for(var i = 0; i < chain.length; i++)
 		{
-			obj = arr[i];
+			obj = chain[i];
+			
+			if(arr.indexOf(obj) == -1)
+				continue;	// Listener has been unbound
 			
 			if(event.phase == Event.CAPTURING_PHASE && !obj.useCapture)
 				continue;
 				
-			obj.listener.call(arr[i].thisObject, event);
+			obj.listener.call(chain[i].thisObject, event);
 		}
 	}
 }
diff --git a/package.json b/package.json
index 912c523..fce2476 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@perry-rylance/event-dispatcher",
-    "version": "1.0.1",
+    "version": "1.0.2",
     "description": "A lightweight ES6 event dispatcher which supports bubbling, capture phases and bubbling to the DOM tree.",
     "main": "event-dispatcher.js",
     "type": "module",