Tweaked the .data() event triggering - it now triggers a single 'setD…

…ata' event, passing in a key value pair of what was changed.

src/core.js

@@ -479,15 +479,17 @@ jQuery.fn = jQuery.prototype = {
 	},
 
 	data: function( key, value ){
+		var parts = key.split(".");
+
 		if ( value == null ) {
 			if ( this.length ) {
 				var data = jQuery.data( this[0], key );
 				return data == null ?
-					jQuery.data( this[0], key.split(".")[0] ) :
+					jQuery.data( this[0], parts[0] ) :
 					data;
 			}
 		} else
-			return this.trigger("set-" + key + "!", [value]).each(function(){
+			return this.trigger("setData" + (parts[1] ? "." + parts[1] : "") + "!", [parts[0], value]).each(function(){
 				jQuery.data( this, key, value );
 			});
 	},

test/unit/core.js

@@ -1406,25 +1406,25 @@ test(".data()", function() {
 	div.data("test", "overwritten");
 	ok( div.data("test") == "overwritten", "Check for overwritten data" );
 
-	var hits = 0;
+	var hits = {test:0};
 
 	div
-		.bind("set-test",function(){ hits += 1; })
-		.bind("set-test.foo",function(){ hits += 2; })
+		.bind("setData",function(e,key,value){ hits[key] += value; })
+		.bind("setData.foo",function(e,key,value){ hits[key] += value; })
 
-	div.data("test.foo", "foodata");
+	div.data("test.foo", 2);
 	ok( div.data("test") == "overwritten", "Check for original data" );
-	ok( div.data("test.foo") == "foodata", "Check for namespaced data" );
+	ok( div.data("test.foo") == 2, "Check for namespaced data" );
 	ok( div.data("test.bar") == "overwritten", "Check for unmatched namespace" );
-	ok( hits == 2, "Check triggered functions" );
+	ok( hits.test == 2, "Check triggered functions" );
 
-	hits = 0;
+	hits.test = 0;
 
-	div.data("test", "overwritten2");
-	ok( div.data("test") == "overwritten2", "Check for original data" );
-	ok( div.data("test.foo") == "foodata", "Check for namespaced data" );
-	ok( div.data("test.bar") == "overwritten2", "Check for unmatched namespace" );
-	ok( hits == 1, "Check triggered functions" );
+	div.data("test", 1);
+	ok( div.data("test") == 1, "Check for original data" );
+	ok( div.data("test.foo") == 2, "Check for namespaced data" );
+	ok( div.data("test.bar") == 1, "Check for unmatched namespace" );
+	ok( hits.test == 1, "Check triggered functions" );
 });
 
 test("$.removeData", function() {