Cleaned up how event removing was handled. All expandos are now removed when...

Cleaned up how event removing was handled. All expandos are now removed when they are no longer needed. Additionally, a bug where all events are unbound if an incorrect event handler is provided, was fixed.

src/event/event.js

@@ -55,35 +55,41 @@ jQuery.event = {
 
 	// Detach an event or set of events from an element
 	remove: function(element, type, handler) {
-		if (element.$events) {
-			var i,j,k;
-			if ( type && type.type ) { // type is actually an event object here
+		var events = element.$events, ret;
+
+		if ( events ) {
+			// type is actually an event object here
+			if ( type && type.type ) {
 				handler = type.handler;
-				type    = type.type;
+				type = type.type;
 			}
 			
-			if (type && element.$events[type])
+			if ( !type ) {
+				for ( type in events )
+					this.remove( element, type );
+
+			} else if ( events[type] ) {
 				// remove the given handler for the given type
 				if ( handler )
-					delete element.$events[type][handler.guid];
-					
+					delete events[type][handler.guid];
+				
 				// remove all handlers for the given type
 				else
-					for ( i in element.$events[type] )
-						delete element.$events[type][i];
-						
-			// remove all handlers		
-			else
-				for ( j in element.$events )
-					this.remove( element, j );
-			
-			// remove event handler if no more handlers exist
-			for ( k in element.$events[type] )
-				if (k) {
-					k = true;
-					break;
+					for ( handler in events[type] )
+						delete events[type][handler];
+
+				// remove generic event handler if no more handlers exist
+				for ( ret in events[type] ) break;
+				if ( !ret ) {
+					ret = element["on" + type] = undefined;
+					delete events[type];
 				}
-			if (!k) element["on" + type] = null;
+			}
+
+			// Remove the expando if it's no longer used
+			for ( ret in events ) break;
+			if ( !ret )
+				delete element.$events;
 		}
 	},
 

src/event/eventTest.js

@@ -15,7 +15,7 @@ test("toggle(Function, Function) - add toggle event and fake a few clicks", func
 });
 
 test("unbind(event)", function() {
-	expect(4);
+	expect(6);
 	var el = $("#firstp");
 	el.click(function() {
 		ok( true, "Fake normal bind" );
@@ -29,6 +29,13 @@ test("unbind(event)", function() {
 	el.click(function() { return; });
 	el.unbind('click');
 	ok( !el[0].onclick, "Handler is removed" ); // Bug #964
+
+	el.click(function() { return; });
+	el.unbind('change',function(){ return; });
+	ok( el[0].onclick, "Extra handlers weren't accidentally removed." );
+
+	el.unbind('click');
+	ok( !el[0].$events, "Removed the events expando after all handlers are unbound." );
 });
 
 test("trigger(event, [data]", function() {
@@ -59,4 +66,4 @@ test("bind() with data and trigger() with data", function() {
 		ok( data.bar == "foo", "Check value of trigger data" );
 	}
 	$("#firstp").bind("click", {foo: "bar"}, handler).trigger("click", [{bar: "foo"}]);
-});
+});
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