Making mouseenter and mouseleave work with .live().

diff --git a/src/event.js b/src/event.js
index fde5767..a1d5ed0 100644 (file)
--- a/src/event.js
+++ b/src/event.js
@@ -517,6 +517,14 @@ var withinElement = function( event ) {
                // handle event if we actually just moused on to a non sub-element
                jQuery.event.handle.apply( this, arguments );
        }
+
+},
+
+// In case of event delegation, we only need to rename the event.type,
+// liveHandler will take care of the rest.
+delegate = function( event ) {
+       event.type = event.data;
+       jQuery.event.handle.apply( this, arguments );
 };
 
 // Create mouseenter and mouseleave events
@@ -525,11 +533,11 @@ jQuery.each({
        mouseout: "mouseleave"
 }, function( orig, fix ) {
        jQuery.event.special[ fix ] = {
-               setup: function(){
-                       jQuery.event.add( this, orig, withinElement, fix );
+               setup: function(data){
+                       jQuery.event.add( this, orig, data && data.selector ? delegate : withinElement, fix );
                },
-               teardown: function(){
-                       jQuery.event.remove( this, orig, withinElement );
+               teardown: function(data){
+                       jQuery.event.remove( this, orig, data && data.selector ? delegate : withinElement );
                }
        };
 });
@@ -743,9 +751,17 @@ function liveHandler( event ) {
 
        jQuery.each( jQuery.data( this, "events" ).live || [], function( i, fn ) {
                if ( fn.live === event.type ) {
-                       var elem = jQuery( event.target ).closest( fn.selector, event.currentTarget )[0];
+                       var elem = jQuery( event.target ).closest( fn.selector, event.currentTarget )[0],
+                               related;
                        if ( elem ) {
-                               elems.push({ elem: elem, fn: fn, closer: jQuery.lastCloser });
+                               // Those two events require additional checking
+                               if ( fn.live === "mouseenter" || fn.live === "mouseleave" ) {
+                                       related = jQuery( event.relatedTarget ).closest( fn.selector )[0];
+                               }
+
+                               if ( !related || related !== elem ) {
+                                       elems.push({ elem: elem, fn: fn });
+                               }
                        }
                }
        });