Fixes #8456. Make sure parent is not null before crawling into its lap, so mouseenter...

diff --git a/src/event.js b/src/event.js
index f7e0a08..2620646 100644 (file)
--- a/src/event.js
+++ b/src/event.js
@@ -661,7 +661,7 @@ var withinElement = function( event ) {
 
                // Chrome does something similar, the parentNode property
                // can be accessed but is null.
-               if ( parent !== document && !parent.parentNode ) {
+               if ( parent && parent !== document && !parent.parentNode ) {
                        return;
                }
                // Traverse up the tree

diff --git a/test/unit/event.js b/test/unit/event.js
index b7b2604..d66aaac 100644 (file)
--- a/test/unit/event.js
+++ b/test/unit/event.js
@@ -683,6 +683,20 @@ test("hover()", function() {
        equals( times, 4, "hover handlers fired" );
 });
 
+test("mouseover triggers mouseenter", function() {
+       expect(1);
+       
+       var count = 0,
+               elem = jQuery("<a />");
+       elem.mouseenter(function () {
+         count++;
+       });
+       elem.trigger('mouseover');
+       equals(count, 1, "make sure mouseover triggers a mouseenter" );
+       
+       elem.remove();
+});
+
 test("trigger() shortcuts", function() {
        expect(6);