Added a new extra fn arg to trigger (so you don't have to simulate the trigger yourself). (Bug #1467) Added a new .triggerHandler() method that allows you to NOT trigger native calls AND returns the response from the handlers. (Bug #873 & #1417)

src/event/event.js

@@ -122,7 +122,7 @@ jQuery.event = {
 		}
 	},
 
-	trigger: function(type, data, element) {
+	trigger: function(type, data, element, native, extra) {
 		// Clone the incoming data, if any
 		data = jQuery.makeArray(data || []);
 
@@ -147,8 +147,12 @@ jQuery.event = {
 			if ( !fn && element["on"+type] && element["on"+type].apply( element, data ) === false )
 				val = false;
 
+			// Handle triggering of extra function
+			if ( extra && extra.apply( element, data ) === false )
+				val = false;
+
 			// Trigger the native events (except for clicks on links)
-			if ( fn && val !== false && !(jQuery.nodeName(element, 'a') && type == "click") ) {
+			if ( fn && native !== false && val !== false && !(jQuery.nodeName(element, 'a') && type == "click") ) {
 				this.triggered = true;
 				element[ type ]();
 			}
@@ -412,12 +416,17 @@ jQuery.fn.extend({
 	 * @param Array data (optional) Additional data to pass as arguments (after the event object) to the event handler
 	 * @cat Events
 	 */
-	trigger: function( type, data ) {
+	trigger: function( type, data, fn ) {
 		return this.each(function(){
-			jQuery.event.trigger( type, data, this );
+			jQuery.event.trigger( type, data, this, true, fn );
 		});
 	},
 
+	triggerHandler: function( type, data, fn ) {
+		if ( this[0] )
+			return jQuery.event.trigger( type, data, this[0], false, fn );
+	},
+
 	/**
 	 * Toggle between two function calls every other click.
 	 * Whenever a matched element is clicked, the first specified function 

src/event/eventTest.js

@@ -94,13 +94,41 @@ test("unbind(event)", function() {
 });
 
 test("trigger(event, [data]", function() {
-	expect(3);
+	expect(28);
+
 	var handler = function(event, a, b, c) {
-		ok( a == 1, "check passed data" );
-		ok( b == "2", "check passed data" );
-		ok( c == "abc", "check passed data" );
+		equals( event.type, "click", "check passed data" );
+		equals( a, 1, "check passed data" );
+		equals( b, "2", "check passed data" );
+		equals( c, "abc", "check passed data" );
+		return "test";
 	};
+
+	// Simulate a "native" click
+	$("#firstp")[0].click = function(){
+		ok( true, "Native call was triggered" );
+	};
+
+	// Triggers handlrs and native
+	// Trigger 5
 	$("#firstp").bind("click", handler).trigger("click", [1, "2", "abc"]);
+
+	// Triggers handlers, native, and extra fn
+	// Triggers 9
+	$("#firstp").trigger("click", [1, "2", "abc"], handler);
+
+	// Simulate a "native" click
+	$("#firstp")[0].click = function(){
+		ok( false, "Native call was triggered" );
+	};
+
+	// Trigger only the handlers (no native)
+	// Triggers 4
+	equals( $("#firstp").triggerHandler("click", [1, "2", "abc"]), "test", "Verify handler response" );
+
+	// Trigger only the handlers (no native) and extra fn
+	// Triggers 8
+	equals( $("#firstp").triggerHandler("click", [1, "2", "abc"], handler), "test", "Verify handler response" );
 });
 
 test("toggle(Function, Function)", function() {
@@ -123,4 +151,4 @@ test("toggle(Function, Function)", function() {
 		});
 		return false;
 	}).click().click().click();
-});
+});