Added in Ben Alman's proposed event.namespace property (the property holds the namespaces specified in a call to trigger). Additionally fixes namespaces with .live(). Fixes #6208 and #6209.

Author: jeresig

src/event.js

@@ -368,7 +368,7 @@ jQuery.event = {
 	},
 
 	handle: function( event ) {
-		var all, handlers, namespaces, namespace, events, args = jQuery.makeArray( arguments );
+		var all, handlers, namespaces, namespace_sort = [], namespace_re, events, args = jQuery.makeArray( arguments );
 
 		event = args[0] = jQuery.event.fix( event || window.event );
 		event.currentTarget = this;
@@ -379,7 +379,9 @@ jQuery.event = {
 		if ( !all ) {
 			namespaces = event.type.split(".");
 			event.type = namespaces.shift();
-			namespace = new RegExp("(^|\\.)" + namespaces.slice(0).sort().join("\\.(?:.*\\.)?") + "(\\.|$)");
+			namespace_sort = namespaces.slice(0).sort();
+			namespace_re = new RegExp("(^|\\.)" + namespace_sort.join("\\.(?:.*\\.)?") + "(\\.|$)");
+			event.namespace = namespace_sort.join(".");
 		}
 
 		events = jQuery.data(this, "events");
@@ -393,7 +395,7 @@ jQuery.event = {
 				var handleObj = handlers[ j ];
 
 				// Filter the functions by class
-				if ( all || namespace.test( handleObj.namespace ) ) {
+				if ( all || namespace_re.test( handleObj.namespace ) ) {
 					// Pass in a reference to the handler function itself
 					// So that we can later remove it
 					event.handler = handleObj.handler;
@@ -997,14 +999,18 @@ jQuery.each(["live", "die"], function( i, name ) {
 
 function liveHandler( event ) {
 	var stop, maxLevel, elems = [], selectors = [],
-		related, match, handleObj, elem, j, i, l, data, close,
+		related, match, handleObj, elem, j, i, l, data, close, namespace,
 		events = jQuery.data( this, "events" );
 
 	// Make sure we avoid non-left-click bubbling in Firefox (#3861)
 	if ( event.liveFired === this || !events || !events.live || event.button && event.type === "click" ) {
 		return;
 	}
 
+	if ( event.namespace ) {
+		namespace = new RegExp("(^|\\.)" + event.namespace.split(".").join("\\.(?:.*\\.)?") + "(\\.|$)");
+	}
+
 	event.liveFired = this;
 
 	var live = events.live.slice(0);
@@ -1028,7 +1034,7 @@ function liveHandler( event ) {
 		for ( j = 0; j < live.length; j++ ) {
 			handleObj = live[j];
 
-			if ( close.selector === handleObj.selector ) {
+			if ( close.selector === handleObj.selector && (!namespace || namespace.test( handleObj.namespace )) ) {
 				elem = close.elem;
 				related = null;
 

test/unit/event.js

@@ -1135,41 +1135,55 @@ test("live with multiple events", function(){
 });
 
 test("live with namespaces", function(){
-	expect(6);
+	expect(12);
 
 	var count1 = 0, count2 = 0;
 
-	jQuery("#liveSpan1").live("foo.bar", function(){
+	jQuery("#liveSpan1").live("foo.bar", function(e){
 		count1++;
 	});
 
-	jQuery("#liveSpan2").live("foo.zed", function(){
+	jQuery("#liveSpan1").live("foo.zed", function(e){
 		count2++;
 	});
 
 	jQuery("#liveSpan1").trigger("foo.bar");
 	equals( count1, 1, "Got live foo.bar" );
+	equals( count2, 0, "Got live foo.bar" );
+
+	count1 = 0, count2 = 0;
 
-	jQuery("#liveSpan2").trigger("foo.zed");
+	jQuery("#liveSpan1").trigger("foo.zed");
+	equals( count1, 0, "Got live foo.zed" );
 	equals( count2, 1, "Got live foo.zed" );
 
 	//remove one
-	jQuery("#liveSpan2").die("foo.zed");
+	count1 = 0, count2 = 0;
+
+	jQuery("#liveSpan1").die("foo.zed");
 	jQuery("#liveSpan1").trigger("foo.bar");
 
-	equals( count1, 2, "Got live foo.bar after dieing foo.zed" );
+	equals( count1, 1, "Got live foo.bar after dieing foo.zed" );
+	equals( count2, 0, "Got live foo.bar after dieing foo.zed" );
 
-	jQuery("#liveSpan2").trigger("foo.zed");
-	equals( count2, 1, "Got live foo.zed" );
+	count1 = 0, count2 = 0;
+
+	jQuery("#liveSpan1").trigger("foo.zed");
+	equals( count1, 0, "Got live foo.zed" );
+	equals( count2, 0, "Got live foo.zed" );
 
 	//remove the other
 	jQuery("#liveSpan1").die("foo.bar");
 
+	count1 = 0, count2 = 0;
+
 	jQuery("#liveSpan1").trigger("foo.bar");
-	equals( count1, 2, "Did not respond to foo.bar after dieing it" );
+	equals( count1, 0, "Did not respond to foo.bar after dieing it" );
+	equals( count2, 0, "Did not respond to foo.bar after dieing it" );
 
-	jQuery("#liveSpan2").trigger("foo.zed");
-	equals( count2, 1, "Did not trigger foo.zed again" );
+	jQuery("#liveSpan1").trigger("foo.zed");
+	equals( count1, 0, "Did not trigger foo.zed again" );
+	equals( count2, 0, "Did not trigger foo.zed again" );
 });
 
 test("live with change", function(){